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Human Interleukin 6,IL-6 ELISA KIT

Product#: CS-CSB-E04638h-IS
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Universal Blocking Buffer

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SigMax 2Ab-TBS

Included with every order

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DCP-HRPTBS1X

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Exclusively for HRP-based kits
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Exclusively for ALP-based kits

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Human ELISA Kit · Immunology

Human Interleukin 6,IL-6 ELISA KIT

Sandwich quantitative immunoassay for Human Interleukin 6,IL-6 ELISA KIT in human serum, plasma, cell culture supernates, tissue homogenates, saliva, urine  available in multiple catalog sizes:

Trial 24T 96T

Note: Please send inquiries regarding Trial 24T orders to support@diagnocine.com.

Detection Range
4.7-300 pg/mL
Sensitivity
2.35 pg/mL
Assay Time
1-5 hours
Sample Volume
50-100 μL
Product specifications
Uniprot No.P05231
SpeciesHomo sapiens (Human)
Sample typesserum, plasma, cell culture supernates, tissue homogenates, saliva, urine
Detection range4.7pg/mL- 300pg/mL
Sensitivity2.35pg/mL
Assay time1-5h
Sample loading volume50-100μL
Detection wavelength450 nm
Assay principleSandwich (Quantitative)
Data analysisStandard curve + Curve Expert software
Research areaImmunology
Storage condition2-8°C (see protocol for full details)
Shipping condition4 °C
Shelf life6 months
Human Interleukin 6,IL-6 ELISA KIT serum plasma cell culture supernates tissue homogenates saliva urine Immunology Human ELISA
Lead Time

10 business days

Processing + 3-5 days shipping

Availability

In Stock : USA

Worldwide shipping available

Assay principle
Sample prep
Antibody capture
450 nm detection
Standard curve
Quantification

In this sandwich ELISA, Human Interleukin 6,IL-6 ELISA KIT in the sample is captured between a pre-coated capture antibody and a detection antibody. Signal intensity is proportional to analyte concentration. Quantification uses a standard curve fitted with Curve Expert software, covering 4.7pg/mL- 300pg/mL with a minimum detectable dose of 2.35pg/mL.

For research use only (RUO). Not intended for diagnostic or therapeutic purposes. Validated in human serum, plasma, cell culture supernates, tissue homogenates, saliva, urine matrices only.
Description

This ELISA kit provides quantitative measurement of interleukin-6 (IL-6) in human samples, supporting research into this pleiotropic cytokine's central role in inflammatory signaling, acute-phase responses, and immune dysregulation. Because IL-6 levels can span orders of magnitude between healthy baseline and active disease states such as sepsis or cytokine storm, the kit is designed to capture both constitutive and induced expression across diverse biological compartments.

Detection Range: The 4.7–300 pg/mL range covers basal circulating IL-6 in healthy serum (typically 1–5 pg/mL with dilution consideration) through the elevated concentrations seen in chronic inflammation, autoimmune flares, and post-surgical responses, minimizing the need for extensive sample dilution in most clinical and in vitro stimulation experiments.

Alternative Names
Interleukin BSF 2 ELISA Kit; B cell differentiation factor ELISA Kit; B cell stimulatory factor 2 ELISA Kit; B-cell stimulatory factor 2 ELISA Kit; BSF 2 ELISA Kit; BSF-2 ELISA Kit; BSF2 ELISA Kit; CDF ELISA Kit; CTL differentiation factor ELISA Kit; Cytotoxic T cell differentiation factor ELISA Kit; Hepatocyte stimulating factor ELISA Kit; Hepatocyte stimulatory factor ELISA Kit; HGF ELISA Kit; HSF ELISA Kit; Hybridoma growth factor ELISA Kit; Hybridoma growth factor Interferon beta-2 ELISA Kit; Hybridoma plasmacytoma growth factor ELISA Kit; IFN-beta-2 ELISA Kit; IFNB2 ELISA Kit; IL 6 ELISA Kit; IL-6 ELISA Kit; IL6 ELISA Kit; IL6_HUMAN ELISA Kit; Interferon beta 2 ELISA Kit; Interferon beta-2 ELISA Kit; Interleukin 6 ELISA Kit; Interleukin 6 (interferon beta 2) ELISA Kit; Interleukin BSF 2 ELISA Kit; Interleukin-6 ELISA Kit
Function
Cytokine with a wide variety of biological functions in immunity, tissue regeneration, and metabolism. Binds to IL6R, then the complex associates to the signaling subunit IL6ST/gp130 to trigger the intracellular IL6-signaling pathway (Probable). The interaction with the membrane-bound IL6R and IL6ST stimulates 'classic signaling', whereas the binding of IL6 and soluble IL6R to IL6ST stimulates 'trans-signaling'. Alternatively, 'cluster signaling' occurs when membrane-bound IL6:IL6R complexes on transmitter cells activate IL6ST receptors on neighboring receiver cells (Probable).; IL6 is a potent inducer of the acute phase response. Rapid production of IL6 contributes to host defense during infection and tissue injury, but excessive IL6 synthesis is involved in disease pathology. In the innate immune response, is synthesized by myeloid cells, such as macrophages and dendritic cells, upon recognition of pathogens through toll-like receptors (TLRs) at the site of infection or tissue injury (Probable). In the adaptive immune response, is required for the differentiation of B cells into immunoglobulin-secreting cells. Plays a major role in the differentiation of CD4(+) T cell subsets. Essential factor for the development of T follicular helper (Tfh) cells that are required for the induction of germinal-center formation. Required to drive naive CD4(+) T cells to the Th17 lineage. Also required for proliferation of myeloma cells and the survival of plasmablast cells.; Acts as an essential factor in bone homeostasis and on vessels directly or indirectly by induction of VEGF, resulting in increased angiogenesis activity and vascular permeability. Induces, through 'trans-signaling' and synergistically with IL1B and TNF, the production of VEGF. Involved in metabolic controls, is discharged into the bloodstream after muscle contraction increasing lipolysis and improving insulin resistance. 'Trans-signaling' in central nervous system also regulates energy and glucose homeostasis. Mediates, through GLP-1, crosstalk between insulin-sensitive tissues, intestinal L cells and pancreatic islets to adapt to changes in insulin demand. Also acts as a myokine (Probable). Plays a protective role during liver injury, being required for maintenance of tissue regeneration. Also has a pivotal role in iron metabolism by regulating HAMP/hepcidin expression upon inflammation or bacterial infection. Through activation of IL6ST-YAP-NOTCH pathway, induces inflammation-induced epithelial regeneration.
Gene References into Functions
  1. Our study suggests the second day as the golden time for measuring the serum levels of IL-6. These findings warn us to take more health care actions in patients with higher serum levels of IL-6 on the second day. PMID: 29947344
  2. The G/C genotype and the minor allele C of the IL-6 rs1800795 SNP were more common in individuals with Type 2 Diabetes Mellitus than controls (p = 0.004, odds ratio [OR] = 1.98, 95% confidence interval [CI]: 1.24-3.18 and p = 0.011, OR = 1.59, 95% CI: 1.11-2.26, respectively). PMID: 29957071
  3. FABP5 promotes tumor angiogenesis via activation of the IL6/STAT3/VEGFA signaling pathway in hepatocellular carcinoma. PMID: 29957468
  4. Acute exercise in children with juvenile idiopathic arthritis induced slightly musculoskeletal leg pain and transient increased plasma calprotectin levels but not IL-6 levels PMID: 30008613
  5. indicate that the distribution of IL6-174G/C (rs1800795) SNP was marginally associated with multiple sclerosis susceptibility PMID: 30069682
  6. Although interleukin-6 (IL-6) mRNA level was higher in 3D-culured cells, its secretion levels were higher in 2D-cultured cells. In addition, the levels of mRNA and protein expression of regnase-1, regulatory RNase of inflammatory cytokine, significantly increased in 3D culture, suggesting post-translational modification of IL-6 mRNA via regnase-1. PMID: 30096769
  7. Our findings suggest that IL-6-mediated cross-talk between preadipocytes and breast DCIS cells can promote the progression of early stage breast cancer. PMID: 30134951
  8. in the patients with primary depression, depressive symptoms were associated with IL-6 PMID: 30148175
  9. study suggests that-174 G/C polymorphism of IL-6 gene differs in athletes, G allele and GG genotype is higher than the other ones, at least in Turkish athletes, and therefore should be taken into consideration when determining genetic aspects of athletes. PMID: 30213294
  10. Lysophosphatidylcholine induces COX-2-mediated IL-6 expression. NADPH oxidase/Reactive Oxygen Species is involved in Lysophosphatidylcholine-induced COX-2 expression. PMID: 30229288
  11. LL was significantly negatively correlated with PGC-1alpha, TNF-alpha, and IL-6 mRNA expressions. PGC-1alpha mRNA expression levels in paraspinal muscles may be affected by lumbar kyphosis. PMID: 30233161
  12. IL-6 may be used as a tumor marker for cancer diagnosis. It may be a clinically significant predictor and may represent a target for cancer treatment. However, to definitely conclude this, further extensive studies would be required PMID: 30249899
  13. The analysis of the effect of the individual SNPs(PON1, IL-6, ITGB3, and ALDH2 ) and GRS groups on different lipid profile parameters revealed no significant association of any of the tested SNPs with any lipid parameter, however, the GRS groups showed marginally significant for TC and highly significant association for TG, LDL-c and HDL-c PMID: 30261890
  14. Authors found that the IL-6 serum level was significantly higher in the SIRS group than in the control group. A significant association was observed in the genotypic distribution of the IL-6 - 572G allele in the SIRS group, when compared with the control group, and SIRS is more likely to occur in wasp sting patients with more than 10 stings. PMID: 30265566
++ 36 more research findings link this target to additional biology. Showing the 14 most recent — the full set appears on the complete datasheet.
Involvement in disease
Rheumatoid arthritis systemic juvenile (RASJ)
Tissue Specificity
Produced by skeletal muscle.
Subcellular Location
Secreted.
Protein Families
IL-6 superfamily
Database Links

HGNC: 6018

OMIM: 147620

KEGG: hsa:3569

STRING: 9606.ENSP00000258743

UniGene: Hs.654458

Precision

Intra-assay Precision (Precision within an assay): CV%<8%

Three samples of known concentration were tested twenty times on one plate to assess.

Inter-assay Precision (Precision between assays): CV%<10%

Three samples of known concentration were tested in twenty assays to assess.

Typical Data

These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.

Human Interleukin 6,IL-6 ELISA KIT

pg/ml

OD1

OD2

Average

Corrected

300

3.031

2.934

2.983

2.878

150

2.574

2.427

2.500

2.396

75

1.698

1.728

1.713

1.608

37.5

1.050

1.029

1.039

0.935

18.75

0.532

0.511

0.521

0.417

9.4

0.360

0.339

0.349

0.245

4.7

0.199

0.188

0.193

0.089

0

0.104

0.105

0.104

Linearity

To assess the linearity of the assay, samples were spiked with high concentrations of human IL-6 in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.

Sample

Serum(n=4)

1:1

Average %

85

Range %

80-91

1:2

Average %

98

Range %

91-104

1:4

Average %

90

Range %

86-106

1:8

Average %

93

Range %

85-98

Recovery

The recovery of human IL-6 spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.

Sample Type

Average % Recovery

Range

Serum (n=5)

95

90-98

EDTA plasma (n=4)

90

85-95

Peer-reviewed citations
Role of the alpha-1 antitrypsin in the progression and severity of COVID-19 infection among Saudi patients

RA Ali, WA Mohammedsaeed, MHA Fakher  ·  BMC Infectious Diseases  ·  2025

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