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Active Interleukin 32 (IL32)

NK4; TAIF; TAIFb; TAIFd; Natural Killer Cell Transcript 4; Natural killer cells protein 4; Tumor necrosis factor alpha-inducing factor

ACTIVITY TEST

Interleukin-32 (IL-32) is an interleukin cytokine usually linked to inflammation. The IL-32 transcript is expressed in various human tissues and organs such as the spleen, thymus, leukocyte, lung, small intestine, colon, prostate, heart, placenta, liver, muscle, kidney, pancreas, and brain. Cytokines are critical components of cell signaling pathways that are involved in the regulation of cell growth, metabolism, hormone signaling, immune regulation and a variety of other physiological functions. FGFR1 has been identified as an interactor of IL-32, thus a functional binding ELISA assay was conducted to detect the interaction of recombinant human IL-32 and recombinant human FGFR1. Briefly, IL-32 was diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100 μl were then transferred to FGFR1-coated microtiter wells and incubated for 1h at 37℃. Wells were washed with PBST and incubated for 1h with anti-IL-32 pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody for 1h at 37℃, wells were aspirated and washed 5 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37℃. Finally, add 50 µL stop solution to the wells and read at 450/630nm immediately. The binding activity of recombinant human IL-32 and recombinant human FGFR1 was shown in Figure 1, the EC50 for this effect is 0.15 ug/mL.

USAGE

Reconstitute in 10mM PBS (pH7.4) to a concentration of 0.1-1.0 mg/mL. Do not vortex.

STORAGE

Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.

STABILITY

The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.

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Magazine Citations
Lupus. Three cases of lupus nephritis patients with serum interleukin-32γ detection Pubmed:24879659
Tumour Biol Clinical significance of serum interleukin-29, interleukin-32, and tumor necrosis factor alpha levels in patients with gastric cancer PubMed: 26219901
Biomedical Reports Calprotectin in serum and zonulin in serum and feces are elevated after introduction of a diet with lower carbohydrate content and higher fiber, fat and protein contents. pubmed:28413639
Arab Journal of Gastroenterology Role of several cytokines and adhesion molecules in the diagnosis and prediction of survival ofhepatocellular carcinoma. pubmed:27916547
ResearchGate SERUM INTERLEUKIN-32 (IL-32) LEVELS MAY HAVE DIAGNOSTIC AND PROGNOSTIC ROLES IN PATIENTS WITH... doi:10.19193/0393-6384_2017_4_091
Biomedical Reports Calprotectin in serum and zonulin in serum and feces are elevated after introduction of a diet with lower carbohydrate content and higher fiber, fat and protein contents 10.3892/br.2017.865
Journal of Diabetes & Metabolism High Fiber Fat and Protein Contents Lead to Increased Satiety Reduced Sweet Cravings and Decreased Gastrointestinal Symptoms Independently of Anthropometric Hormonal and Metabolic Factors 10.4172/2155-6156.1000733 
IL-31, IL-32 and IL-33 may Serve as Diagnosis Biomarkers in Gastric Cancer
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