- A micro ELISA plate --- The 96-well plate has been pre-coated with an anti-human IL-8 antibody. This dismountable microplate can be divided into 12 x 8 strip plates.
- Two vials lyophilized standard --- Dilute a bottle of the standard at dilution series, read the OD values, and then draw a standard curve.
- One vial Biotin-labeled IL-8 antibody (100 x concentrate) (120 μl/bottle) ---Act as the detection antibody.
- One vial HRP-avidin (100 x concentrate) (120 μl/bottle) --- Bind to the detection antibody and react with the TMB substrate to make the solution chromogenic.
- One vial Biotin-antibody Diluent (15 ml/bottle) ---Dilute the high concentration Biotin-antibody to an appropriate working solution.
- One vial HRP-avidin Diluent (15 ml/bottle) ---Dilute the high concentration HRP-avidin solution to an appropriate solution.
- One vial Sample Diluent (50 ml/bottle)---Dilute the sample to an appropriate concentration.
- One vial Wash Buffer (25 x concentrate) (20 ml/bottle) --- Wash away unbound or free substances.
- One vial TMB Substrate (10 ml/bottle) --- Act as the chromogenic agent. TMB interacts with HRP, eliciting the solution turns blue.
- One vial Stop Solution (10 ml/bottle) --- Stop the color reaction. The solution color immediately turns from blue to yellow.
- Four Adhesive Strips (For 96 wells) --- Cover the microplate when incubation.
- An instruction manual
Human Interleukin 8,IL-8 ELISA KIT
Katalog-Nummer CSB-E04641h-96T
Size : 96T
Marke : Cusabio
| Size | 96T,5×96T,10×96T |
Product Details
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.
To assess the linearity of the assay, samples were spiked with high concentrations of human IL-8 in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.


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


- A microplate reader capable of measuring absorbance at 450 nm, with the correction wavelength set at 540 nm or 570 nm.
- An incubator that can provide stable incubation conditions up to 37°C±5°C.
- Squirt bottle, manifold dispenser, or automated microplate washer.
- Absorbent paper for blotting the microtiter plate.
- 100ml and 500ml graduated cylinders.
- Deionized or distilled water.
- Adjustable pipettes to measure volumes ranging from 2 µL to 1 mL and pipette tips.
- Timer
- Test tubes for dilution.
and FAQs
This Human IL8 ELISA Kit was designed for the quantitative measurement of Human IL8 protein in serum, cell culture supernates, saliva, urine, cerebrospinal fluid (CSF), tissue homogenates, cell lysates. It is a Sandwich ELISA kit, its detection range is 31.25 pg/mL-2000 pg/mL and the sensitivity is 7.110 pg/mL.
Citations
- W Luo, X Yang, Y Liu, T Qiu, H Ren,International Journal of Molecular Sciences,2026
- A Zhu, J Liu, Y Liu, R Xu, Y Yuan, Q Sun, F Wang,Scientific Reports,2026
- B Meng, Y Qu, B Yang, C Fu, Y He, J Li,Nature Biomedical Engineering,2026
- ADRA2A contributes to airway inflammation and apoptosis in asthma through the ERK signaling in vitro and in vivo F Zhou, J Cai, L Chen, X Tan, C Li,Journal of inflammation,2025
- C Zhu, M Qu, D Wu, Y Shi, F Zeng,Journal of Inflammation Research,2025
- L Zhao, X He, X Hao, W Lai, J Zhao, Y Chen,Letters in Drug Design & Discovery,2025
- J Zhang, J Wang, J Guo, B Wei,BMC Musculoskeletal Disorders,2025
- ОА Рычкова, ДА Сизов,Медицинский вестник Башкортостана,2025
- Y Huang, X Tang, H Xie, Z Wu, L Jin, L Zhang,Cell Death & Disease,2025
- M Rahiminejad, M Montaseri, MH Yousefi, S Nazifi,Scientific Reports,2025
Customer Reviews and Q&A
Sample type: Cell culture supernatant
Sample species: Human
Review: The mRNA level expressions of pro-inflammatory cytokines, IL-1α, IL-6, IL-8, and TNF-α were all assessed by qRT-PCR. * P<0.05, ** P<0.01, ***P<0.001 compared with the indicated group.
By Anonymous
Sample type: Cell culture supernatant
Sample species: Human
Review: IL-8 in the conditioned medium has no significant differences among these groups.
By Anonymous
Sample type: Cell culture supernatant
Sample species: Human
Review: Serum Effect of various molecular weights of HA (30, 300, and 1300 kDa) on P.gingivalis-stimulated cytokine expression in HGFs. IL-8 production was determined by ELISA. Each value represents the mean ± S.D. from three separate experiments.
By Anonymous
Target Background
(From Uniprot)
- VEGF and IL-8 play a prominent role in the pathogenesis of early forms of rosacea and the hemostasis system.
- High levels of LIFR in colorectal cancer (CRC) facilitated proliferation and migration of endothelial cells, resulting in an increase in angiogenic activity. Moreover, IL-8 was found to play a role in the LIFR induced angiogenesis. IL-8 levels were correlated with LIFR levels in CRC tissues, whereas depletion of IL-8 led to a reduced angiogenic activity of LIFR in CRC cells.
- PKC-delta isoform plays a crucial role in Tat-TLR4 signaling pathway to activate NF-kappaB and CXCL8 production.
- CXCL8 was a target of miR-204, and miR-204 suppression could not increase cell viability, migration, invasion, and EMT procedure when CXCL8 was silenced.
- Interleukin 8 - 845 T/C and + 781 C/T polymorphisms were analyzed. For + 781C/T locus, in the dominant genetic model, significant difference between TT vs. CC + CT genotypes that significantly had a protective role against periodontitis disease. Positive association between distribution of IL8 - 845 T/C alleles and risk of periodontitis disease. C allele of IL-8 - 845 increased the risk of periodontitis disease.
- These results suggest a direct involvement of IL-8-CXCR1/2 axes in GBM progression by promoting both cell proliferation and invasion and indirectly by promoting neovascularization in the form of vascular mimicry.
- These results show that AKIP1 is crucial in cervical cancer angiogenesis and growth by elevating the levels of the NF-kappaB-dependent chemokines CXCL1, CXCL2, and CXCL8.
- The extramembranous domain of HofQ (emHofQ) was shown to interact with various cytokines, of which IL-8 exhibited the strongest interaction.
- he protein expression levels of IL-8 were significantly decreased in SZ patients, but no significant difference in the mRNA levels of IL-8 was observed between SZ patients and NC subjects.
- immune system process is indispensable in the progression of disease in colon, and identifies that IL-8 and MMP-9 play potential critical roles for the progression.
- IL-8 production was significantly enhanced following treatment with both IL-17A and CSE, while treatment with either IL-17A or CSE alone caused only a slight increase in IL-8 production.
- Work identified IL-8 as a positive regulator of homotypic CIC formation via enhancing intercellular adhesion.
- V2O5 induction of CXCL8 and CXCL11 chemokines may lead to the appearance and perpetuation of an inflammatory reaction into the dermal tissue. Further studies are required to evaluate dermal integrity and manifestations in subjects occupationally exposed, or living in polluted areas.
- Study findings point out that PAR2 could play an essential role in gastroesophageal reflux disease (GERD) pathogenesis - even repeated short-term exposure to weakly acidic conditions lead to the upregulation of PAR2 and subsequent activation of the intense IL-8 release in the esophageal mucosa and initiation of mucosal immune response in GERD.
- Given that IL-8, MIP-1beta, and MCP-1 are chemokines that play important roles in recruitment of immunocompetent cells for immune defense and tumor cell clearance, the observed lower levels of these markers with increasing PM2.5 exposure may provide insight into the mechanism by which DEE promotes lung cancer.
- These results suggested that stemness induction in SKOV3 cells by macrophages co-cultured with SKOV3-derived OCSLCs involved IL-8/STAT3 signaling.
- IL-8-251T>A (rs4073) Polymorphism is associated with gastric Cancer.
- expression level of CXCL8 had a positive relationship with recurrence probability in Acute myeloid leukemia.
- These data were in close agreement with the reduced cell migration and colony formation. Results from the present study suggested that reparixin and SCH527123 may be promising therapeutic agents for the treatment of pancreatic cancer by inhibiting the IL8/CXCR1/2 signaling cascade.
- A urinary IL-8 level of less than 61.25 pg/ml is more sensitive for prediction of complete remission in idiopathic membranous nephropathy patients.
- berberine inhibited the expression of MCP-1 and IL-8 induced by LPS.
- Regarding the IL-8 promoter T - 251A, the TA and AA genotypes were associated with significantly decreased risks of nasopharyngeal carcinoma (NPC) in a Taiwanese population compared with the wild-type TT genotype. The mRNA and protein expression levels for NPC tissues revealed no significant associations among the 20 NPC samples with different genotypes.
- IL-8 +781 T/C polymorphism is associated with the severe Clostridium difficile infection
- ShRNA mediated down-regulation of CXCL8 resulted in inhibition of cell proliferation, viability and invasion in vitro and a near complete growth reduction of tumor in vivo.
- CSF IL-8 concentrations were significantly elevated in CNS tumor patients as compared to non-tumoral individuals. AUC for CSF IL-8 was higher than for its index (CSF IL-8/serum IL-8).
- High IL8 expression is associated with melanoma.
- Lipo-CPFX, but not CPFX, retained the anti-IL-8 releasing activity.
- The results indicate significant contribution of IL8 on survival of hormonal dependent early-stage breast cancer patients and association with established parameters such as estrogen receptors/progesterone receptor and HER2.
- the frequency of non-classical monocytes expressing CXCL8 was increased in systemic sclerosis patient and monocytes expressing CXCL8
- ntermediate Molecular Mass Hyaluronan and CD44 interactions enhanced normal PMN phagocytosis and IL-8 production
- serum levels in active vitiligo significantly elevated compared to those in stable vitiligo patients
- High IL8 expression is associated with pancreatic adenocarcinoma.
- Compared with controls, the interleukin (IL)-8 A/A genotype was more common in acute pancreatitis (AP).
- The presence of neither the first transmembrane helix of the receptor nor the lipid bilayer significantly affected the interactions of IL-8 with Binding Site-I of CXCR1.
- CXCL8 is highly expressed in cervical cancer tissues and cell lines, and correlated with malignant status and prognosis in cervical cancer patients.
- In conclusion, to our knowledge, this is the first study in the association of rs4073 and rs2227306 polymorphisms with childhood asthma risk in the Tunisian population.
- Results show that IL8 expression level is regulated by APE1 which activates NF-KB.
- aberrant miR-520c-3p expression may lead to reduced IL-8 expression and promote the mesenchymal phenotype in breast cancer cells, thereby increasing invasive growth.
- increased levels of IL-8 are associated with factors of worse prognosis in ovarian cancer
- Significantly elevated blood levels of IL-8 in myelodysplastic syndrome patients.
- the elevated concentrations of CXCL13, CXCL8, and CXCL10 or their increasing CSF/serum ratios may be potential biomarkers of neurosyphilis
- Results implicated the important role of PRL-3 in glycolysis metabolism through improving IL-8 secretion in colorectal cancer cells, and PRL-3 mediated glycolysis contributed to the promotion of cancer metastasis.
- Changes in serum IL-8 levels could be used to monitor and predict clinical benefit from immune checkpoint blockade in melanoma and NSCLC patients
- Lung cancer patients showed significantly lower levels of serum VEGF (1.9 fold) and IL-8 (~9 fold) than COPD patients. VEGF level was significantly higher (2.6 fold) in metastatic than non-metastatic cancer patients. An increase in MMP-9 (~1.6 fold) levels was observed in lung cancer patients.
- CXCL1/8 secreted by adipose-derived mesenchymal stem cells could promote breast cancer angiogenesis.
- our meta-analysis suggests that the IL-8 rs4073, A2767T, T11722T2, rs2234671, rs2230054, rs1126579, rs2227306, rs2227307, rs2227532, and T-738A polymorphisms are not associated with periodontitis while the IL-8 C1633T and rs1126580 polymorphisms may elevate the susceptibility of periodontitis based on the currently available evidences.
- An analogue of human CXCL8, CXCL8(3-72)K11R/G31P (hG31P) has been developed.
- inflammation triggered property of Microcystin-LR via IL-8/CXCR2 signaling
- A high IL-8 content in urine sampled on day 1 after renal transplantation was positively correlated with the activity of metalloproteinase-9 in urine. This proves that both of these chemokines cooperate in ischaemia-reperfusion injuries in transplanted kidneys.
- We discovered that IL-8 secreted from decidual stromal cells is a key cytokine enhancing the invasiveness of trophoblasts
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