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Immunology & Inflammation Research Platform

Immunology &
Inflammation
Research Assays

Validated ELISA kits spanning cytokines, chemokines, interleukins, CD antigens, Fc receptors, complement system, and toll-like receptors — the most comprehensive immunology assay portfolio available. GENLISA™ kits validated in 16+ species with 1,800+ citations.

7+
Immune Categories
400+
ELISA Kits
16+
Species Covered
1800+
Citations
Research Context

Why immunology and inflammation research demands breadth and specificity in ELISA tools

Cytokines define the inflammatory state. No single cytokine tells the full story. Cytokine profiles — the relative abundance of pro-inflammatory, anti-inflammatory, and regulatory mediators — must be read together. A one-stop ELISA portfolio across all key targets is essential.
CGT demands matrix-validated immune monitoring. Cell and gene therapies induce complex immune responses. Detecting CRS and ICANS requires cytokine ELISA validated across serum, plasma, and CSF — not just standard matrices. PrecisionBind™ closes this gap.
Preclinical cross-species translation. Immune pathways are conserved but reagents are not interchangeable between species. Krishgen offers matched cytokine ELISA for Human, Mouse, Rat, Bovine, and 10 further species — same target, species-specific validated kits.

GENLISA™ Cytokine ELISA Kits

India's largest cytokine ELISA portfolio, manufactured since 2008. Validated sandwich immunoassays using monoclonal antibody pairs, Corning™ polystyrene microplates, and proprietary stabilizers for lot-to-lot CV <1%.

PrecisionBind™ — CGT-Grade Cytokine ELISA

Matrix-Validated ELISA for Cell & Gene Therapy Immune Monitoring

Cell and gene therapies induce complex immune responses — including life-threatening Cytokine Release Syndrome (CRS) and ICANS (Immune Effector Cell-Associated Neurotoxicity Syndrome) — that require reliable, matrix-specific cytokine quantification. Standard commercial kits validated only in serum or plasma create a critical data gap in CSF and translational matrices.

PrecisionBind™ cytokine ELISA are validated across serum, plasma, and CSF, calibrated against NIBSC international cytokine standards for inter-laboratory harmonization, with intra-assay CVs below 4% and inter-assay CVs below 5% across 50+ independent production lots. R² ≥ 0.995 linearity. Recovery within ±10% of expected concentration across all matrices.

View PrecisionBind™ Portfolio →

Browse by Immune Target Class

Use filters to navigate to your target category, then access species-specific kits within each group.

Pro-inflammatory Cytokines
Core Panel

IL-1β, IL-6, IL-18, TNF-α, IL-17A, IL-23 — the master regulators of inflammatory response. Available in Human, Mouse, Rat, Bovine, and Equine. NIBSC-calibrated options for IL-6 and TNF-α. Bulk Genbulk™ packs available for high-throughput studies.

Sandwich ELISA14 speciesNIBSC options
View pro-inflammatory cytokine kits →
Anti-inflammatory Cytokines
Regulatory

IL-10, IL-4, IL-13, TGF-β1, IL-35 — mediators of immune resolution and regulatory T cell function. Essential for studying immune balance in chronic inflammation, allergy, and tolerance induction. Human, Mouse, Rat validated.

Resolution markersTreg functionAllergy research
View anti-inflammatory cytokine kits →
Interferons
Antiviral / Innate

IFN-α, IFN-β, IFN-γ — bridging innate and adaptive immunity. IFN-γ is a key readout for T cell activation. IFN-α is the primary antiviral cytokine. All available in Human, Mouse, and Rat.

Antiviral responseT cell activationInnate sensing
View interferon ELISA →
Th1 / Th2 / Th17 Panel
T Helper Subsets

IL-2, IL-12 (Th1) • IL-4, IL-5, IL-13 (Th2) • IL-17A/F, IL-22, IL-23 (Th17). Critical for allergy, autoimmunity, infection, and vaccine research. Multiplex-compatible selection available.

Th1 / Th2 / Th17Vaccine researchAutoimmunity
View T helper cytokine ELISA →
CXC Chemokines
Neutrophil Trafficking

CXCL8 (IL-8), CXCL10 (IP-10), CXCL16, GRO-α/β — govern neutrophil, NK cell, and T cell migration to sites of inflammation. CXCL10 is a key biomarker in viral infection and autoimmune disease.

Neutrophil recruitmentViral biomarkerCXC family
View CXC chemokine ELISA →
CC Chemokines
Monocyte / T Cell

CCL2 (MCP-1), CCL3 (MIP-1α), CCL5 (RANTES), CCL11 (Eotaxin), CCL17 (TARC) — direct monocyte, eosinophil, and memory T cell trafficking. Available in Bovine and Equine in addition to standard species.

Monocyte recruitmentEosinophil homingCC family
View CC chemokine ELISA →
Acute Phase Proteins
Systemic Inflammation

CRP, SAA (Serum Amyloid A), Haptoglobin, Ferritin — liver-derived reactants produced in response to systemic inflammation. CRP is the most widely used clinical inflammation marker. Quantitative sandwich ELISA for Human and preclinical species.

Liver-derivedClinical biomarkersSystemic response
View acute phase protein ELISA →
Neutrophil Activation Markers
Innate Effectors

NETs (KBH4548), MPO, Elastase, Lactoferrin — markers of neutrophil activation and degranulation. NETs are emerging biomarkers in sepsis, COVID-19 severity, and thromboinflammation. Human validated.

NETs • KBH4548Sepsis biomarkerThromboinflammation
View NETs ELISA (KBH4548) →
Soluble CD Antigens
Immune Cell Shedding

Soluble forms of CD4, CD8, CD14, CD25 (sIL-2Rα), CD40L, CD163 — shed from activated immune cells into circulation. sCD25 is diagnostic for HLH. sCD163 marks M2 macrophage polarization. sCD40L is elevated in lupus.

Lymphocyte activationMacrophage polarizationHLH diagnostics
View soluble CD antigen ELISA →
Fc Gamma Receptors
Antibody Effector Function

FcγRI (CD64), FcγRIIa (CD32a), FcγRIIb (CD32b), FcγRIIIa (CD16a) — mediate phagocytosis, ADCC, and immune complex clearance. FcγRIIIa V158F polymorphism determines ADCC efficacy. Relevant to mAb therapy research.

ADCC functionmAb therapyPhagocytosis
View Fc receptor ELISA →
Complement Pathway Components
Innate Effectors

C1q, C3, C3a, C4, C4b, C5a, Factor H, Factor B, MBL — covering all three activation pathways. C5a is the primary complement-driven chemoattractant. Factor H regulates alternative pathway activity in AMD and atypical HUS.

Classical pathwayAlternative pathwayLectin pathway
View complement ELISA →
Toll-Like Receptor Family
Pattern Recognition

TLR1–TLR9 and co-receptors (MD-2, CD14) — primary sentinels of innate immune activation. TLR4 detects LPS; TLR7/8 detect ssRNA; TLR9 detects CpG DNA. ELISA for soluble TLR proteins and downstream signaling readouts.

Bacterial sensingViral sensingInnate activation
View TLR ELISA →
Downstream Signaling Markers
NF-κB / Inflammasome

MyD88, TRIF, NF-κB p65, NLRP3, Caspase-1 — signaling intermediates linking pattern recognition to cytokine gene expression. Complete NLRP3 inflammasome panel: NLRP3 + Caspase-1 + IL-1β + IL-18. Human and Mouse.

NF-κB signalingInflammasomeNLRP3 panel
View innate signaling ELISA →
Colony Stimulating Factors
Immune Cell Growth

G-CSF, GM-CSF, M-CSF, SCF — growth factors driving myeloid and granulocyte development. GM-CSF is a key CRS marker. G-CSF drives neutrophil expansion. Human, Mouse, and Rat with NIBSC calibration options for GM-CSF.

Myeloid developmentCRS monitoringNIBSC calibrated
View CSF growth factor ELISA →
HMGB1 & Alarmin ELISA
Danger Signals / DAMPs

HMGB1, S100A8/A9 (Calprotectin), S100B — damage-associated molecular patterns released by necrotic or activated cells, acting as late-stage inflammatory amplifiers. HMGB1 is elevated in sepsis, SLE, and RA. Human and Mouse.

DAMPsSepsis markersLate-stage inflammation
View alarmin ELISA →
FcεR & Allergy Receptors
Allergy / IgE

FcεRI (high-affinity IgE receptor on mast cells and basophils), FcεRII (CD23) — mediators of IgE-driven allergic responses. IgE levels and FcεRI expression are critical in atopic disease research.

Mast cell activationAtopic diseaseIgE-mediated
View FcεR ELISA →
TNF Superfamily Ligands
TNF / TNFSF

TNF-α, TNF-β (LTA/TNFB), LTB, BAFF (TNFSF13B), APRIL (TNFSF13), TRAIL (TNFSF10), RANKL (TNFSF11), OX40L (TNFSF4), TWEAK (TNFSF12), TL1A (TNFSF15) — the TNF superfamily drives apoptosis, immune cell survival, and inflammatory amplification. BAFF is critical for B cell homeostasis; RANKL drives osteoclastogenesis. Validated in Human, Mouse, Rat, Bovine.

BAFF / APRILTRAIL / RANKLApoptosisB cell survival
View TNF superfamily ELISA →
TNF Superfamily Receptors
TNFRSF

TNFR1 (CD120a), TNFR2, BAFFR (TNFRSF13C), CD40 (TNFRSF5), BCMA (TNFRSF17/CD269), OX40 (TNFRSF4), 4-1BB (TNFRSF9/CD137), GITR (TNFRSF18), HVEM (TNFRSF14), TACI (TNFRSF13B), DcR3 — receptors mediating TNF-family signaling. 4-1BB and OX40 are active checkpoint immunotherapy targets. BCMA is the target of belantamab mafodotin in myeloma.

Checkpoint targetsBCMA / CD137Apoptosis receptors
View TNFRSF ELISA →
TGF-β / Activin / BMP Family
TGF Superfamily

TGF-β1, TGF-β2, TGF-β3 and their receptors (TGFBR1/2/3), Activin A (ACVR2A/B), BMP-2 — pleiotropic mediators of immune suppression, fibrosis, tissue repair, and bone remodeling. TGF-β1 is the primary Treg-inducing cytokine and a major driver of NASH fibrosis. Available in Human, Mouse, Rat, Bovine, Porcine, and Equine.

TGF-β1/2/3Treg inductionFibrosisBMP-2
View TGF-β / BMP ELISA →
Extended IL Panel (IL-19 to IL-35)
Later Interleukins

IL-19, IL-20, IL-22, IL-25 (IL-17E), IL-28A/B (IFN-λ), IL-29, IL-31, IL-33, IL-35 — the later interleukins involved in epithelial immunity, allergy amplification, antiviral response, itch/dermatitis (IL-31), and alarmin signaling (IL-33). Key targets for biologic drug development in atopic dermatitis, asthma, and IBD.

IL-33 / ST2IL-31 itch signalIFN-λ antiviralEpithelial immunity
View extended IL ELISA →
Cytokine Receptors
Soluble Receptors

Soluble forms of IL-6R (sIL-6R/CD126), IL-2Rα (sCD25), IL-4R (CD124), IL-7R (CD127), IL-17RA, IL-10Rα/β, IL-1R1/R2, IFNGR1/R2, IFNAR1, LEPR, LIFR, OSMR, IL-31RA, IL11RA — shed receptors and decoy receptors that modulate cytokine bioavailability. sIL-6R enables trans-signaling in cells that do not express membrane IL-6R, expanding IL-6's inflammatory reach.

sIL-6R trans-signalingDecoy receptorsBioavailability
View cytokine receptor ELISA →
IL-1 Extended Family
IL-1 Superfamily

Beyond IL-1α and IL-1β: IL-1RA (endogenous IL-1 antagonist; target of anakinra), IL-18 binding protein (IL-18BP), IL-33/ST2 axis, IL-36α/β/γ and IL-36RA, IL-37, IL-38 — a family of ~11 members that includes both pro-inflammatory and anti-inflammatory members. Critical for inflammasome research, autoinflammatory diseases, and dermatology (IL-36 in psoriasis).

IL-1RA / anakinraIL-33 / ST2 axisIL-36 psoriasisAutoinflammatory
View IL-1 family ELISA →

Pathway Biology & Assay Selection

Understanding immune pathway architecture guides panel design. Select a pathway to see key analytes, clinical relevance, and recommended Krishgen ELISA.

CRS / Cytokine Storm
NLRP3 Inflammasome
Th1 / Th2 / Th17
Complement Cascade
TLR / NF-κB Axis
Neutrophil Effector

Cytokine Release Syndrome (CRS) & Immune Effector Monitoring

CRS is a systemic inflammatory response triggered by CAR-T, bispecific antibody, and checkpoint inhibitor therapies. Cytokine monitoring is required for grading severity (ASTCT consensus criteria) and guiding tocilizumab or corticosteroid intervention. Core CRS panel: IL-6, IFN-γ, IL-1β, IL-10, GM-CSF, TNF-α, IL-8. For ICANS (neuroinflammation), add CSF-validated versions via PrecisionBind™.

IL-6 (PrecisionBind™)
Primary tocilizumab target; rises 12–24h post-infusion
IFN-γ
T cell effector marker; grade 3–4 CRS indicator
IL-1β
Macrophage activation; anakinra intervention target
GM-CSF
Myeloid amplifier; NIBSC 88/646 calibrated
IL-10
Anti-inflammatory counter-regulatory signal
TNF-α
Vascular permeability; macrophage activation

NLRP3 Inflammasome Pathway

The NLRP3 inflammasome processes pro-IL-1β and pro-IL-18 into active forms via Caspase-1 cleavage. Activated by PAMPs, DAMPs, cholesterol crystals, and urate — relevant to gout, atherosclerosis, NASH, Alzheimer's, and sepsis. A complete panel includes: NLRP3, ASC, Caspase-1, IL-1β, IL-18, and Gasdermin D.

NLRP3
Sensor component; activated by danger signals
Caspase-1
Effector protease; cleaves pro-IL-1β and pro-IL-18
IL-1β
Primary output; pyroptosis and fever mediator
IL-18
IFN-γ inducer; NK and T cell activation
Gasdermin D
Pyroptosis executioner; membrane pore formation
ASC (PYCARD)
Adaptor bridging NLRP3 to Caspase-1

T Helper Cell Polarization Panel

CD4+ T helper cells differentiate into subsets defined by their cytokine output. Th1 (IL-12 driven, IFN-γ / IL-2 producing) promotes cellular immunity. Th2 (IL-4 driven, IL-4/5/13 producing) drives humoral and allergic responses. Th17 (TGF-β + IL-6 driven, IL-17A/F and IL-22 producing) mediates mucosal defense and autoimmunity. Monitoring the Th1/Th2 balance and Treg/Th17 ratio provides mechanistic insight in autoimmunity, allergy, and vaccination.

IL-12 (p70)
Th1 polarizing cytokine; dendritic cell-derived
IFN-γ
Th1 effector; macrophage activation signal
IL-4 / IL-13
Th2 effectors; IgE class switch, allergy
IL-5
Eosinophil growth factor; asthma biomarker
IL-17A / IL-17F
Th17 effectors; mucosal & autoimmune disease
IL-10 / TGF-β1
Treg output; tolerance and resolution

Complement Cascade — Three Pathway Architecture

Complement is activated through three converging pathways: Classical (C1q + antibody-antigen complex), Lectin (MBL + carbohydrate patterns), and Alternative (spontaneous C3 hydrolysis, regulated by Factor H). All converge at C3 cleavage, generating C3a (anaphylatoxin) and C3b (opsonin), proceeding to the MAC (C5b-9). Critical in autoimmune disease, transplant rejection, PNH, AMD, and complement-targeted therapy (eculizumab, avacopan).

C1q
Classical pathway initiator; autoimmune sensing
MBL
Lectin pathway initiator; infection sensing
C3 / C3a
Central convergence point; anaphylatoxin
C5a
Potent chemoattractant; neutrophil recruiter
Factor H
Alternative pathway regulator; AMD / aHUS
C4b / C4d
Transplant rejection biomarker

Toll-Like Receptor / NF-κB Signaling Axis

TLRs are expressed on immune cell surfaces (TLR1/2/4/5/6) or in endosomes (TLR3/7/8/9). Ligand binding triggers MyD88 or TRIF adapter recruitment, leading to IKK activation, IκB degradation, and NF-κB nuclear translocation — driving transcription of pro-inflammatory cytokines, interferons, and co-stimulatory molecules. Measuring soluble TLR proteins alongside NF-κB activation markers captures both upstream sensing and downstream output.

TLR4 / MD-2
LPS receptor; gram-negative bacterial sensing
TLR2 / TLR6
Lipoteichoic acid; gram-positive sensing
TLR7 / TLR8
ssRNA sensing; antiviral innate response
TLR9
CpG DNA sensing; bacterial / viral DNA
MyD88
Universal TLR adapter; NF-κB pathway entry
NF-κB (p65)
Transcription factor; cytokine gene expression

Neutrophil Activation & Effector Markers

Neutrophil activation leads to degranulation (MPO, Elastase, Lactoferrin) and NET formation — chromatin extrusion that traps pathogens but also drives tissue damage in autoimmunity and sepsis. Elevated NETs (KBH4548) are associated with disease severity in COVID-19, SLE, antiphospholipid syndrome, and ARDS. Recommended neutrophil effector panel: NETs + MPO + Elastase + G-CSF + IL-8.

NETs (KBH4548)
Chromatin trap; sepsis and thromboinflammation
MPO
Oxidative burst marker; degranulation indicator
Elastase (NE)
Serine protease; tissue remodelling
Lactoferrin
Iron-binding protein; antimicrobial activity
IL-8 / CXCL8
Primary neutrophil chemoattractant
G-CSF
Neutrophil growth factor; expansion driver

Species-Specific ELISA Coverage

Each GENLISA™ kit is developed with species-specific antibody pairs — ensuring validated detection in your experimental model, not assumed cross-reactivity. Species-specific kits are not interchangeable — the same target analyte (e.g. IL-6) requires a different kit in each species.

👤
Human
150+ kits
🐭
Mouse
60+ kits
🐀
Rat
40+ kits
🐄
Bovine
30+ kits
🐎
Equine
20+ kits
🐷
Porcine
20+ kits
🐒
Monkey
15+ kits
🐐
Goat
12+ kits
🐑
Sheep
12+ kits
🐔
Chicken
10+ kits
🐶
Dog / Canine
10+ kits
🐰
Rabbit
8+ kits
🐹
Guinea Pig
8+ kits
🐱
Cat / Feline
5+ kits
🐺
Hamster / Ferret
Select kits
🐠
Zebrafish & Others
General kits

Immunology Assay Reference Guide

Click any block to view key kits, catalog numbers, and species coverage.

Core Cytokines & Interleukins — Human / Mouse / Rat

Top-selling. Available in 14 species.+

The GENLISA™ core cytokine panel covers the most-cited immunological analytes, each available across Human, Mouse, and Rat with matched monoclonal antibody pairs for true cross-species comparability. Bulk Genbulk™ format (5-plate / 15-plate) available for high-throughput applications.

Cat NoTargetSpeciesKey ApplicationLink
KB1063 / KB2063 / KLR0119IL-1βHuman / Mouse / RatInflammasome output; acute inflammationView →
KB1064 / KB2015 / KLR0123IL-2Human / Mouse / RatT cell proliferation; adaptive responseView →
KB1066 / KLM0051 / KLR0133IL-4Human / Mouse / RatTh2 driver; allergy and IgE class switchView →
KB1067 / KLM0050 / KLR0134IL-5Human / Mouse / RatEosinophil growth factor; asthmaView →
KB1068 / KB2068 / KB3068IL-6Human / Mouse / RatCRS biomarker; acute phase inducerView →
KB1070 / KLM1481 / KLR1167IL-8 / CXCL8Human / Mouse / RatPrimary neutrophil chemoattractantView →
KB1071 / KLM0080 / KLR0138IL-9Human / Mouse / RatMast cell growth; Th9 / allergyView →
KB1072 / KB2072 / KLR0108IL-10Human / Mouse / RatAnti-inflammatory; Treg effector cytokineView →
KB1075 / KB2075 / KLR0110IL-12Human / Mouse / RatTh1 polarizer; dendritic cell outputView →
KB1076 / KLM0019 / klr0112IL-13Human / Mouse / RatTh2 effector; airway inflammationView →
KB1079 / KB2079IL-17AHuman / MouseTh17 effector; mucosal & psoriasisView →
KB1082IL-18HumanInflammasome output; IFN-γ inducerView →
KB1145 / KB2145 / KB3145TNF-αHuman / Mouse / RatMaster pro-inflammatory cytokineView →
KB1053 / KB2011 / KLR0103IFN-γHuman / Mouse / RatTh1 output; macrophage activationView →
KBH0076 / KLM0653 / KLR0087IFN-αHuman / Mouse / RatAntiviral innate response; type I IFNView →
KB1140 / KLM0660 / KLR1688TGF-β1Human / Mouse / RatTreg induction; fibrosis; immunosuppressionView →
KBH0121 / KLM0641 / KLR0428G-CSFHuman / Mouse / RatNeutrophil production; myeloid expansionView →
KB1048 / KB2048GM-CSFHuman / MouseMyeloid development; CRS marker. NIBSC calibrated.View →
KB1086 / KLM1151 / KLR1473IL-22Human / Mouse / RatTh17 effector; mucosal barrier integrity; IBDView →
KB1082 / KLM0044 / KLR0117IL-18Human / Mouse / RatInflammasome output; synergises with IL-12 to drive IFN-γView →
KB1089 / KLM1182 / KLR0938IL-33Human / Mouse / RatAlarmin; ST2 axis; mast cell and ILC2 activation; asthmaView →
KB1088 / KLM1385 / KLR4012IL-31Human / Mouse / RatItch / pruritus signal; atopic dermatitis; key biologic targetView →
KB1085 / KLM0614 / KLR0124IL-21Human / Mouse / RatTfh cell output; B cell differentiation; autoimmunityView →
KBH3929 / KLM2181 / KLR1519IL-19Human / Mouse / RatIL-10 family; keratinocyte activation; skin inflammationView →
KBH21279 / KLM2182 / KLR1220IL-20Human / Mouse / RatEpidermal differentiation; wound healing; psoriasisView →
KBH2162 / KLM2187 / KLR1433IL-23Human / Mouse / RatTh17 maintenance; psoriasis / IBD; biologic drug targetView →
KBH0054 / KLM1656 / KLR1122IL-25 (IL-17E)Human / Mouse / RatILC2 activator; type 2 immunity amplifier; allergyView →
KBH0042 / KLM0402IL-35Human / MouseTreg effector cytokine; suppresses Th17; toleranceView →
KBH0056 / KLM2169IL-28A (IFN-λ2)Human / MouseType III interferon; mucosal antiviral responseView →
KBH4773IL-28B (IFN-λ3)HumanType III interferon; HCV treatment response predictorView →
KBH1111 / KLM0645 / KLR0143LIFHuman / Mouse / RatLeukemia Inhibitory Factor; embryo implantation; immune modulationView →
KBH1663 / KLM0134 / KLR0726OSM (Oncostatin M)Human / Mouse / RatIL-6 family; acute phase induction; joint inflammationView →
KBH3353 / KLM0631 / KLR0327SDF-1 / CXCL12Human / Mouse / RatBone marrow retention; stem cell trafficking; HIV co-receptor ligandView →

Chemokines — CXC, CC, CX3C Families

40+ kits. Leukocyte trafficking markers.+

Chemokines direct leukocyte migration. CXC chemokines (CXCL1–16) primarily recruit neutrophils and T cells; CC chemokines (CCL2–28) recruit monocytes, eosinophils, and memory T cells. CXCL10 (IP-10) is widely used in viral infection and autoimmune disease. RANTES (CCL5) is elevated in HIV and RA.

Cat NoChemokineCommon NameSpeciesKey RoleLink
KB1070 / KB2070 / KB3070CXCL8IL-8Human / Mouse / RatNeutrophil chemoattractant • Acute inflammationView →
KB1091 / KB2091 / KB3091CXCL10IP-10Human / Mouse / RatT cell / NK recruitment • Viral infectionView →
KB1049CXCL1GRO-α / MGSAHumanNeutrophil and melanoma cell chemotaxisView →
KB1050CXCL2GRO-βHumanNeutrophil activation; inflammatory siteView →
KB1028CXCL16SR-PSOXHumanNKT and T cell recruitment • AtherosclerosisView →
KB4021 / KB4025CCL2 / CCL4MCP-1 / MIP-1βBovineMonocyte & macrophage recruitmentView →
KB2099CCL5RANTESMouseMemory T cell, eosinophil, basophil traffickingView →
KB1024CCL27CTACKHumanSkin-homing T cell chemoattractant; atopic dermatitisView →
KB1037 / KB4033CCL11Eotaxin-1Human / BovineEosinophil chemoattractant; allergy / asthmaView →

CD Antigens & Soluble Surface Markers

Immune cell phenotyping & activation markers+

Soluble CD antigens are ectodomain fragments shed from activated or apoptotic immune cells. Their serum/plasma levels reflect immune cell activation state without flow cytometry. Key uses: sCD25 in HLH, sCD14 in sepsis, sCD163 in macrophage activation syndrome, sCD40L in platelet-mediated inflammation.

TargetCD DesignationClinical RelevanceLink
sCD4CD4T helper cell activation; HIV progression markerSearch →
sCD8CD8Cytotoxic T cell activation; viral immune responseSearch →
sCD14CD14Monocyte activation; LPS co-receptor; sepsis biomarkerSearch →
sCD25 (sIL-2Rα)CD25T cell activation; HLH / MAS diagnosticSearch →
sCD40LCD40L / CD154Platelet activation; SLE; thromboinflammationSearch →
sCD163CD163M2 macrophage marker; MAS; hemolytic diseaseSearch →
sICAM-1 (KB1056)CD54Leukocyte adhesion; endothelial activationView →

Fc Receptors — FcγR, FcεR, FcRn

Antibody effector function & half-life regulation+

Fc receptors bridge antibody recognition with cellular effector function. FcγRs mediate phagocytosis (FcγRI), ADCC (FcγRIIIa), and immune complex clearance (FcγRIIb — inhibitory). FcRn controls IgG half-life and maternal-fetal transfer. In mAb development, Fc engineering targets FcγRIIIa to enhance ADCC and FcRn to extend half-life.

ReceptorCD DesignationFunctionTherapeutic RelevanceLink
FcγRICD64High-affinity IgG receptor; phagocytosis, ADCPMyeloid activation; autoimmuneSearch →
FcγRIIaCD32aPlatelet activation; immune complex uptakeHeparin-induced thrombocytopeniaSearch →
FcγRIIbCD32bInhibitory FcγR; B cell and myeloid suppressionCheckpoint biology; immune toleranceSearch →
FcγRIIIaCD16aNK cell and macrophage ADCC executionmAb Fc engineering (V158F polymorphism)Search →
FcεRIHigh-affinity IgE receptor; mast cell / basophilAllergy, atopic disease, omalizumabSearch →
FcRn (FCGRT)IgG half-life regulation; neonatal transfermAb half-life engineering; IVIG mechanismSearch →

Complement System — Classical, Lectin & Alternative Pathways

Full cascade coverage from C1q to MAC+

C3 is the central pivot — cleaved by convertases from all three pathways. C3a and C5a are potent anaphylatoxins. C5b-9 (MAC) causes direct cell lysis. Soluble complement component ELISA are used in SLE, RA, transplant monitoring, PNH, AMD, and complement-targeted therapy studies (eculizumab, avacopan).

ComponentPathwayClinical UseLink
C1qClassicalSLE monitoring; immune complex sensingSearch →
MBLLectinInnate immune deficiency; infection susceptibilitySearch →
C3 / C3aCentralComplement activation; anaphylatoxinSearch →
C4b / C4dClassical / LectinTransplant rejection; C4d deposition markerSearch →
C5aTerminalNeutrophil chemoattractant; avacopan targetSearch →
Factor HAlternativeRegulation; AMD; atypical HUSSearch →
Factor BAlternativeAmplification loop; complement activation amplifierSearch →

Toll-Like Receptors & Innate Immune Signaling

TLR1–9 • MyD88 • NF-κB • NLRP3 Inflammasome+

TLR4 detects bacterial LPS; TLR3 detects dsRNA; TLR7/8 detect ssRNA; TLR9 detects CpG DNA. All signal through MyD88 (except TLR3) to activate NF-κB and produce inflammatory cytokines. Downstream cytokine readouts — IL-6, IL-8, TNF-α, IL-1β — are available in matched species-specific kits from Krishgen.

TargetPAMP / Ligand DetectedDownstream ReadoutLink
TLR2Lipoteichoic acid (gram+ bacteria)IL-6, TNF-α, IL-12Search →
TLR3Double-stranded RNA (dsRNA)IFN-β, IP-10, IL-12Search →
TLR4 / MD-2LPS (gram-negative bacteria)IL-6, TNF-α, IL-1β, IL-8Search →
TLR7 / TLR8Single-stranded RNAIFN-α, IL-6, TNF-αSearch →
TLR9Unmethylated CpG DNAIFN-α, IL-6, IL-12Search →
MyD88Universal TLR adapter (all except TLR3)NF-κB activation proxySearch →
NLRP3Urate crystals, ATP, LPS primingCaspase-1 → IL-1β / IL-18Search →

TNF Superfamily — Ligands (TNFSF) & Receptors (TNFRSF)

TNFα, BAFF, RANKL, OX40L, TRAIL, 4-1BB, BCMA, CD40 and more+

The TNF superfamily is the master regulator of cell survival, apoptosis, and immune activation. TNF-α is the prototypical member and a key therapeutic target (adalimumab, infliximab). BAFF drives B cell survival and is targeted in SLE (belimumab). RANKL governs osteoclast differentiation — critical in bone loss, arthritis, and cancer metastasis. TRAIL induces apoptosis in tumour cells. The TNFRSF receptors include key immune checkpoint co-stimulators (OX40, 4-1BB, GITR) now targeted by next-generation cancer immunotherapies.

TNF Superfamily Ligands

Cat NoTargetSpeciesKey RoleLink
kb1145 / klm0255 / KB3145TNF-α (TNF)Human / Mouse / RatMaster pro-inflammatory; therapeutic targetView →
KBH0081 / KLR0765 / KLM2541LTA / TNF-βHuman / Rat / MouseLymphotoxin-α; lymphoid organogenesisView →
KBH0171 / KLR0902 / KLM1139LTB (Lymphotoxin-β)Human / Rat / MouseLymphoid tissue development; NF-κB activationView →
KBH1967 / KLR3538 / KLM1867BAFF (TNFSF13B)Human / Rat / MouseB cell survival; SLE target (belimumab)View →
KBH0620 / KLR0289 / KLM0551RANKL (TNFSF11)Human / Rat / MouseOsteoclast differentiation; bone loss; denosumab targetView →
KBH3154TRAIL (TNFSF10)HumanApoptosis in tumour cells; cancer immunotherapyView →
KBH4272OX40L (TNFSF4)HumanT cell co-stimulation; checkpoint immunotherapyView →
KBH6345 / KLM6428TL1A (TNFSF15)Human / MouseIBD and mucosal inflammation; DR3 ligandView →
KBH22659 / KBH6501TWEAK / APRIL (TNFSF12/13)HumanB cell activation; kidney injury; APRIL: IgA nephropathyView →

TNF Superfamily Receptors

Cat NoReceptorSpeciesKey RoleLink
KBH4351 / KLR4501 / KLM6422TNFR1 (CD120a)Human / Rat / MousePrimary TNF-α signalling receptor; apoptosisView →
KBH4749TNFR2 (CD120b)HumanTNF-α pro-survival signalling; immune regulationView →
KBH3153 / KLR1745 / KLM1207CD40 (TNFRSF5)Human / Rat / MouseB cell activation; CD40L-CD40 axis; autoimmunityView →
KBH0268 / KLR3539 / KLM6424BAFF-R (TNFRSF13C)Human / Rat / MouseB cell survival receptor for BAFF; SLEView →
KBH6650 / KLM2539BCMA (TNFRSF17 / CD269)Human / MouseMyeloma target; CAR-T therapy; APRIL/BAFF receptorView →
KBH40944-1BB (TNFRSF9 / CD137)HumanT cell co-stimulation; urelumab / utomilumab targetView →
KBH3356 / KLM1454OX40 (TNFRSF4 / CD134)Human / MouseT cell co-stimulation; checkpoint immunotherapyView →
KBH20999GITR (TNFRSF18 / CD357)HumanTreg modulation; cancer immunotherapy targetView →
KBH6641HVEM (TNFRSF14 / CD270)HumanImmune checkpoint co-inhibitor; BTLA / CD160 ligandView →

IL-1 Extended Family — IL-1RA, IL-18BP, IL-33, IL-36, IL-37, IL-38

Endogenous inhibitors, alarmins & IL-1 superfamily members+

The IL-1 family now encompasses 11 members (IL-1α, IL-1β, IL-18, IL-33, IL-36α/β/γ, IL-37, IL-38, IL-1RA) plus their decoy receptors and binding proteins. Beyond the core IL-1β/IL-18 inflammasome outputs, this family includes key endogenous inhibitors (IL-1RA — the basis for anakinra; IL-18BP) and the alarmin IL-33, which activates mast cells and ILC2s in allergy and asthma. IL-36 subfamily members are elevated in psoriasis and inflammatory bowel disease. Measuring the cytokine alongside its inhibitor (IL-1β + IL-1RA; IL-18 + IL-18BP) gives the biologically active fraction.

Cat NoTargetSpeciesKey ApplicationLink
KBH3000 / KLR0122 / KLM2166IL-1RA (IL1F3)Human / Rat / MouseEndogenous IL-1 inhibitor; anakinra basis; RA, goutView →
KBH21270 / KLR4004 / KLM2179IL-18BPHuman / Rat / MouseIL-18 binding protein; natural inhibitor; free IL-18 ratioView →
KB1089 / KLR0938 / KLM1182IL-33Human / Rat / MouseAlarmin; ILC2 activation; asthma; atopic diseaseView →
KBH5524IL-36α (IL1F6)HumanPsoriasis; skin inflammation; IL-36R signallingView →
KBH5527IL-36RA (IL1F5)HumanIL-36 receptor antagonist; psoriasis; loss-of-function mutationsView →
KBH2762 / KLM5794IL-1F9 (IL-36γ)Human / MousePsoriasis; IBD; IL-36 family pro-inflammatory memberView →
KBH4686IL-1F10 (IL-38)HumanAnti-inflammatory IL-1 family member; RA; psoriasisView →
KBH4808 / KLR4006IL-1R1Human / RatPrimary IL-1 signalling receptor; therapeutic targetView →
KBH2975 / KLM0844IL-1R2Human / MouseDecoy receptor for IL-1; immune suppressionView →
KBH3992IL-18RAPHumanIL-18 receptor accessory protein; signal transductionView →

Cytokine Receptors — Soluble & Membrane-Shed Receptor ELISA

IL-6R, IL-2Rα, IFNγR, IL-4R, IL-7R, IL-17RA, LIFR, OSMR and more+

Soluble cytokine receptors are shed or secreted forms of membrane-bound receptors. They can act as cytokine decoys (sIL-6R acts as a carrier, enabling trans-signalling) or as competitive inhibitors. Measuring receptor alongside ligand is essential for understanding bioactive cytokine fraction. sIL-2Rα (sCD25) is a key diagnostic and monitoring marker for hemophagocytic lymphohistiocytosis (HLH) and macrophage activation syndrome (MAS). IL-6 trans-signalling via sIL-6R is the primary driver of CRS and is the mechanism targeted by tocilizumab.

Cat NoReceptorSpeciesSignificanceLink
KBH0226 / KLR1117 / KLM1405sIL-6R (CD126)Human / Rat / MouseIL-6 trans-signalling; tocilizumab mechanism; CRSView →
KBH0315 / KLM0565sIL-2Rα (CD122)Human / MouseT cell activation marker; HLH / MAS diagnosticView →
KBH21283 / KLR4010 / KLM5796IL-2Rα (CD25)Human / Rat / MouseTreg marker; HLH diagnostic; CD25-targeted therapyView →
KBH0039IL-4R (CD124)HumanTh2 signalling; dupilumab target; atopic dermatitisView →
KBH21289 / KLR4013IL-7R (CD127)Human / RatT cell homeostasis; reduced on TregsView →
KBH5510IL-17RA (CD217)HumanIL-17A/F receptor; secukinumab / ixekizumab targetView →
KBH3976 / KLM5775IFNγR1 (CD119)Human / MouseIFN-γ signal transduction; JAK1-STAT1 pathwayView →
KBH21246IFNAR1HumanType I IFN receptor; antiviral signalling; anifrolumab targetView →
KBH6471 / KLR3998 / KLM5782IL-10RαHuman / Rat / MouseIL-10 signalling; IBD; loss-of-function mutationsView →
KBH0261 / KLR0144 / KLM0700LIFRHuman / Rat / MouseLIF receptor; stem cell maintenance; acute phaseView →
KBH0241OSMRHumanOncostatin M receptor; inflammatory skin diseaseView →

TGF-β / Activin / BMP Superfamily — Pleiotropic Immune Regulators

TGF-β1/2/3 • Activin A • BMP-2 • Noggin • Endoglin • TGFBR1/2+

The TGF-β superfamily encompasses over 30 structurally related ligands including TGF-βs, Activins, BMPs, and Growth Differentiation Factors. In immunology, TGF-β1 is the master Treg-inducing and fibrosis-driving cytokine — critical in chronic inflammation, wound healing, and cancer immune evasion. Activin A regulates inflammation, erythropoiesis, and reproductive biology. BMP-2 is involved in bone formation and has roles in pulmonary arterial hypertension. Noggin is an endogenous BMP antagonist. Endoglin (CD105) marks activated endothelium and is used as an angiogenesis marker.

Cat NoTargetSpeciesKey ApplicationLink
KBH0134 / KLR1688 / KLM0660TGF-β1 (TGFB1)Human / Rat / Mouse + 8 moreTreg induction; fibrosis; immunosuppression; cancerView →
KBH22600 / KLR1689 / KLM0149TGF-β2 (TGFB2)Human / Rat / MouseOcular inflammation; cancer immune evasionView →
KBH22601 / KLR2288 / KLM0854TGF-β3 (TGFB3)Human / Rat / MouseWound healing; fibrosis; palate developmentView →
KBH3312 / KLR1148 / KLM1432TGFBR1 (ALK5)Human / Rat / MouseTGF-β type I receptor; SMAD2/3 signallingView →
KBH3766 / KLR4485 / KLM2510TGFBR2Human / Rat / MouseTGF-β type II receptor; Marfan/Loeys-Dietz syndromeView →
KBH0114 / KLR0302Activin A (ACVA)Human / RatInflammation; erythropoiesis; reproductive biologyView →
KBH20068 / KLM5057ACVR2AHuman / MouseActivin type II receptor; luspatercept targetView →
KB1018 / KLR0276 / KLM5241BMP-2Human / Rat / Mouse + 5 moreBone formation; PAH; BMP pathway activationView →
KBH1494 / KLR0921 / KLM0954Noggin (NOG)Human / Rat / MouseEndogenous BMP antagonist; neural inductionView →
KBH3407 / KLR0666 / KLM5515Endoglin (ENG / CD105)Human / Rat / MouseAngiogenesis marker; HHT; preeclampsiaView →

Extended Interleukins, Growth Factors & Other Cytokines

IL-19 to IL-35 • EGF • FGF • LIF • OSM • Leptin • SDF-1 • M-CSF+

Beyond the core interleukin panel, Krishgen's catalogue covers the full IL-19/20/22/24/25/28/29/31/35 series, a broad growth factor portfolio (EGF, FGF-2, FGF-10), the gp130-signalling cytokines LIF and OSM, the adipokine Leptin, the key chemokine SDF-1/CXCL12, and colony stimulating factor M-CSF. These analytes are increasingly important in mucosal immunity, skin inflammation, neuroimmunology, obesity-inflammation crosstalk, and haematopoiesis research.

Cat NoTargetSpeciesKey ApplicationLink
KBH3929 / KLR1519 / KLM2181IL-19Human / Rat / MousePsoriasis; skin barrier; IL-20 familyView →
KBH21279 / KLR1220 / KLM2182IL-20Human / Rat / MousePsoriasis; skin inflammation; wound healingView →
KB1086 / KLR1473 / KLM1151IL-22Human / Rat / Mouse + 2 moreMucosal immunity; IBD; psoriasis; Th17 effectorView →
KBH0054 / KLR1122 / KLM1656IL-25 (IL-17E)Human / Rat / MouseILC2 activator; Th2 amplification; allergyView →
KBH0056 / KLM2169IL-28A (IFN-λ2)Human / MouseType III interferon; antiviral; HCV researchView →
KBH4773IL-28B (IFN-λ3)HumanType III interferon; HCV treatment response predictorView →
KBH0040IL-29 (IFN-λ1)HumanType III interferon; mucosal antiviral defenceView →
KB1088 / KLR4012 / KLM1385IL-31Human / Rat / MousePruritus; atopic dermatitis; nemolizumab targetView →
KBH0042 / KLM0402IL-35Human / MouseTreg-derived inhibitory cytokine; autoimmunityView →
KBH1111 / KLR0143 / KLM0645LIF (Leukemia Inhibitory Factor)Human / Rat / Mouse + 3 moregp130 cytokine; stem cell maintenance; acute phaseView →
KBH1663 / KLR0726 / KLM0134OSM (Oncostatin M)Human / Rat / Mousegp130 cytokine; inflammatory skin disease; liverView →
KBH0127 / KLR0363 / KLM0646M-CSF (CSF1)Human / Rat / Mouse + 1 moreMacrophage/monocyte growth factor; tumour microenvironmentView →
KBH3353 / KLR0327 / KLM0631SDF-1 / CXCL12Human / Rat / Mouse + 2 moreStem cell homing; CXCR4 axis; HIV co-receptorView →
KB1035 / KLR0152 / KLM0701EGFHuman / Rat / Mouse + 2 moreEpithelial growth & repair; EGFR pathway; inflammationView →
KBH0055 / KLR0852 / KLM1592FGF-2 (bFGF)Human / Rat / Mouse + 2 moreAngiogenesis; tissue repair; inflammatory fibroblastsView →
KBH1559 / KLR0561LeptinHuman / Rat + 10 more speciesAdipokine; obesity-inflammation link; immune activationView →

Choose the Right Cytokine ELISA

Three decisions determine your assay selection. Work through these steps to identify the correct Krishgen kit for your study.

01
Choose your species
Cytokine ELISA are species-specific. The same target analyte requires different kits in Human vs Mouse vs Rat — antibody pairs are not cross-reactive between species. Select your experimental model first.
HumanMouseRatBovineEquineOther species
02
Identify your sample matrix
Most GENLISA™ kits are validated in serum, plasma, and cell culture supernatant. For CSF — critical in neuroinflammation and CGT/ICANS studies — use PrecisionBind™, the only Krishgen cytokine ELISA with formal CSF matrix validation.
SerumPlasmaCell SupernatantCSF (PrecisionBind™)Tissue LysateBAL Fluid
03
Select by sensitivity need
Standard GENLISA™ for typical research concentrations. For ultra-low abundance cytokines in clinical samples or CGT monitoring, PrecisionBind™ provides sub-pg/mL LOD with NIBSC traceability for regulatory-grade data.
Standard ResearchHigh Sensitivity (PrecisionBind™)High-Throughput (Genbulk™)Custom Assay Dev

Understanding Cytokine ELISA: Format, Validation, and Bundling

Cytokine ELISA use a sandwich immunoassay format — a capture antibody pre-coated to the microplate binds the cytokine in the sample, followed by an HRP-conjugated detection antibody. Signal is directly proportional to cytokine concentration. Results are quantitative pg/mL or ng/mL values read from a standard curve. This format provides the sensitivity required to detect cytokines at physiologically relevant concentrations in serum, plasma, and cell culture supernatant. Krishgen kits have been cited in 1,800+ publications across 15+ countries.

The critical quality variable is antibody pair specificity. Krishgen uses highly specific monoclonal antibody pairs for both capture and detection — ensuring minimal cross-reactivity between closely related cytokines (e.g., IL-17A vs IL-17F). All kits are validated across six dimensions: sensitivity, specificity, intra-assay precision, inter-assay precision, accuracy, and robustness/stability.

Product bundling is natural in cytokine research. Cytokines affect pathways — a researcher studying TNF-α is typically also measuring IL-6, IL-1β, and IL-10 as the counter-regulatory signal. Krishgen's breadth allows a single vendor to supply a complete cytokine storm panel, a Th1/Th2/Th17 profiling panel, or a complement activation panel — with matched lot numbers for inter-assay consistency.

For Cell and Gene Therapy studies, PrecisionBind™ meets the demands of clinical and translational research: CSF matrix validation, NIBSC international calibration for cross-study harmonization, and regulatory-grade precision data (intra-assay CV <4%, inter-assay CV <5% across 50+ lots). This level of validation is required to distinguish systemic CRS from CNS-directed ICANS.

Frequently Asked Questions

What species does Krishgen cytokine ELISA cover?

GENLISA™ cytokine ELISA are available in 16+ species including Human, Mouse, Rat, Bovine, Equine, Porcine, Monkey, Goat, Sheep, Chicken, Dog, Cat, Rabbit, Guinea Pig, Hamster, Ferret, and Zebrafish. Core cytokines (IL-6, IL-1β, TNF-α, IFN-γ, IL-10) are matched across all major preclinical species.

Are GENLISA™ kits validated for CSF?

Standard GENLISA™ kits are validated in serum, plasma, and cell culture supernatant. For CSF validation — required for neuroinflammation, CGT neurotoxicity (ICANS), and CNS disease studies — use PrecisionBind™ cytokine ELISA, which include formal CSF matrix validation and parallelism data.

What is PrecisionBind™ and when should I use it?

PrecisionBind™ is Krishgen's CGT-grade cytokine ELISA platform. Use it when you need: (1) CSF-validated cytokine measurement, (2) NIBSC-calibrated data for inter-laboratory comparability, (3) ultra-low LOD (IL-1β: 0.1 pg/mL; IL-8: 0.2 pg/mL), or (4) regulatory-ready precision data (<4% intra-assay CV).

Can I measure the same cytokine in mouse and human samples?

You need separate species-specific kits. Cytokine ELISA antibodies are developed against species-specific epitopes — a human IL-6 ELISA will not accurately detect mouse IL-6. Krishgen offers matched human and mouse kits for all core cytokines, enabling cross-species study design with consistent assay architecture.

What is the Genbulk™ format and when is it appropriate?

Genbulk™ kits supply antibody components (capture, detection, standard) in bulk format for 5 or 15 plates. They require the user to optimize using their own blocking buffers, substrate, and coating solutions. Appropriate for high-throughput established workflows. Not recommended for infrequent users or method development.

Can't Find Your Target? We Can Help.

Our technical team can configure custom cytokine or immune marker panels, source rare species-specific kits across the TNF, TGF-ß, or cytokine receptor families, and advise on assay selection for any research application.

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