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IL6 ELISA Kit & Recombinant IL6 Protein
High-Sensitivity IL-6 Cytokine Detection and Bioactive Recombinant IL6 Proteins for Inflammation, Cancer, Cytokine Storm and Functional Signaling Research.
1. Target Overview: IL-6 Cytokine Function, Signaling & Disease Biology
Interleukin-6 (IL-6) is a multifunctional cytokine involved in inflammation, immune regulation, acute phase responses and disease progression. It is produced by macrophages, T cells, fibroblasts, endothelial cells and other cell types in response to infection, tissue injury, immune activation and cellular stress.
Because IL-6 is strongly associated with inflammatory signalling, cytokine storm responses, autoimmune disease, cancer biology and translational biomarker research, reliable tools such as IL6 ELISA kits and recombinant IL6 protein are essential for both quantitative cytokine measurement and functional pathway validation.
Research Relevance: IL-6 is one of the most widely measured cytokines in inflammation and immunology research. Combining IL6 ELISA-based quantification with bioactive recombinant IL6 stimulation enables researchers to connect cytokine levels with downstream pathway activation.
2. What are IL6 ELISA kits and recombinant IL6 proteins used for?
Biorbyt IL-6 products support both detection and functional research workflows. IL6 ELISA kits are used to quantify IL-6 levels in biological samples, while recombinant IL6 proteins are used to activate IL-6-dependent signalling pathways in cell-based assays.
Key research applications include:
- Cytokine profiling and inflammatory biomarker discovery
- Cytokine storm and cytokine release syndrome research
- Cancer, tumor microenvironment and immunotherapy studies
- Autoimmune disease and chronic inflammation models
- JAK/STAT3, MAPK and PI3K/AKT pathway activation studies
- Drug screening, neutralization assays and therapeutic targeting research
- Multi-omics, systems immunology and translational biomarker workflows
Core Workflow: Measure endogenous IL-6 levels using an IL6 ELISA Kit ➔ stimulate cells with recombinant IL6 protein ➔ evaluate downstream pathway activation, biomarker changes and therapeutic response.
3. Recommended IL6 ELISA kits for cytokine detection
Biorbyt IL6 ELISA kits are designed for sensitive and reproducible cytokine detection in research samples such as serum, plasma, cell culture supernatants and tissue-derived samples where validated. The selected kits below support core human, mouse and rat IL-6 detection workflows.
SKU | Product Name | Sensitivity | Detection Range | Size | Price |
|---|---|---|---|---|---|
3.3 pg/mL | 7.82–500 pg/mL | 48T | $300 | ||
3.2 pg/mL | 7.82–500 pg/mL | 48T | $300 | ||
3.3 pg/mL | 7.82–500 pg/mL | 48T | $300 |
Species Coverage: Biorbyt supports IL6 ELISA workflows across core species including human, mouse and rat, with broader IL-6 product options available for translational research, veterinary science and comparative immunology studies.
4. Recommended recombinant IL6 proteins for functional studies
Recombinant IL6 protein is widely used for cell stimulation, cytokine signalling activation, drug screening and neutralization assays. High-quality IL6 protein should provide strong purity, verified biological activity, low endotoxin levels where required and reproducible performance across experiments.
SKU | Product Name | Purity / Bioactivity | Expression System | Size | Price |
|---|---|---|---|---|---|
Human IL6 Recombinant Protein – Bioactive, High Purity for Cell Stimulation | >95%, ED50: 58–295 pg/mL, endotoxin <1 EU/µg | Yeast, His-tag | 20 µg | $270 | |
Mouse IL6 Protein – High Activity, Tag-Free for Inflammation Models | >97%, ED50 <0.02 ng/mL | E. coli, tag-free | 10 µg | $380 | |
Human IL6 Protein mFc-His Tag – Mammalian Expressed for Functional Assays | >95% purity | HEK293, Fc-His tag | 10 µg | $190 |
5. IL6 signaling pathways and functional assay design
IL-6 signals through the IL6 receptor complex, involving IL6R and gp130. Depending on receptor availability and biological context, IL-6 can activate both classical signaling and trans-signaling mechanisms.
1
Classical Signaling
Membrane IL6R-dependent signaling
IL-6 binds membrane-bound IL6R on responsive cell types and activates downstream immune and inflammatory pathways. This pathway is important for controlled physiological immune responses.
2
Trans-Signaling
Soluble IL6R-mediated signaling
IL-6 can bind soluble IL6R, enabling signaling in a wider range of cells and contributing to chronic inflammation, tissue remodeling and disease-associated immune activation.
Both mechanisms activate major downstream pathways including JAK/STAT3, MAPK and PI3K/AKT, which regulate gene expression, immune modulation, proliferation, survival and inflammatory mediator production.
Functional Assay Tip: Use recombinant IL6 protein to stimulate target cells, then measure pathway activation by phosphorylation markers, transcriptional readouts, secreted cytokines or downstream biomarker expression. IL6 ELISA kits can then quantify released IL-6 or related cytokine responses in culture supernatants.
6. How to choose the best IL6 ELISA kit
Choosing the right IL6 ELISA kit depends on sensitivity requirements, expected cytokine concentration, sample type, species and whether the study is focused on baseline biomarker detection or stimulated cytokine release.
Selection Factor | What to Check | Why It Matters |
|---|---|---|
Sensitivity | Lower pg/mL detection capability | Important for low baseline IL-6 levels, biomarker discovery and early inflammatory response studies. |
Detection range | Dynamic range matched to expected IL-6 levels | Helps avoid repeated dilution and improves quantitative accuracy. |
Sample type | Serum, plasma, cell culture supernatant or tissue sample compatibility | Matrix effects can influence cytokine recovery and assay performance. |
Species | Human, mouse, rat or other species-specific format | Species-specific antibodies improve accuracy and reduce mismatch risk. |
Literature support | Published references or proven research use | Provides stronger confidence in reproducibility and real-world assay performance. |
7. Complete IL-6 research workflow: detection to functional validation
Pairing IL6 ELISA kits with recombinant IL6 protein provides a complete experimental workflow from cytokine measurement to mechanistic validation.
1
Quantify
Measure endogenous IL-6 levels
Use IL6 ELISA kits to quantify IL-6 in serum, plasma, cell culture supernatant or other validated biological samples.
2
Stimulate
Activate IL-6 signaling pathways
Use bioactive recombinant IL6 protein to stimulate cells and investigate JAK/STAT3, MAPK, PI3K/AKT and related signaling responses.
3
Validate
Connect cytokine levels with biological outcomes
Combine ELISA quantification with pathway readouts, neutralization experiments, gene expression analysis or drug-response assays for stronger mechanistic conclusions.
8. Why choose Biorbyt IL-6 products?
- High-performance IL6 ELISA kits with validated sensitivity for cytokine quantification.
- Human, mouse and rat IL6 ELISA options for core translational and preclinical workflows.
- Recombinant IL6 proteins suitable for cell stimulation and functional signaling studies.
- Bioactive protein options with purity, ED50 and endotoxin specifications where available.
- Supports inflammation, cytokine storm, cancer, autoimmune disease and immunotherapy research.
- Detection and functional reagents available to support complete IL-6 pathway workflows.
- Product formats designed for reproducible results in biomarker and cell-based assay development.
9. FAQ & Companion Bioreagents
What samples can be used with IL6 ELISA kits?
IL6 ELISA kits are commonly used with biological samples such as serum, plasma, cell culture supernatants and tissue-derived samples where validated by the specific kit. Always confirm the product datasheet before use.
When should I choose a high-sensitivity IL6 ELISA kit?
High-sensitivity IL6 ELISA kits are recommended when expected IL-6 levels are low, such as baseline cytokine profiling, early immune activation studies, biomarker discovery or precision medicine research.
How do I choose recombinant IL6 protein?
Select recombinant IL6 protein based on species, expression system, purity, biological activity, endotoxin level and intended use. Low-endotoxin, bioactive proteins are preferred for immune and cell stimulation assays.
What is the difference between mammalian and E. coli expressed IL6 protein?
Mammalian-expressed proteins may better support native folding and post-translational processing, while E. coli-expressed proteins can be cost-effective for many standard assays. The best option depends on assay sensitivity, receptor-binding requirements and downstream readouts.
ELISA Kit Human IL6 ELISA Kit High-sensitivity IL-6 quantification for human cytokine profiling, inflammation and biomarker research. ELISA Kit Mouse IL6 ELISA Kit Designed for IL-6 detection in mouse inflammation, preclinical and immune response models. Recombinant Protein Human IL6 Recombinant Protein Bioactive recombinant IL-6 protein for cell stimulation and functional cytokine signaling assays. Antibody IL6 Antibodies Supporting reagents for IL-6 pathway detection, localization and validation workflows.