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sCD134 (OX40) Human ELISA

  • Regulatory status:RUO
  • Type:Sandwich ELISA, Biotin-labelled antibody
  • Other names:OX40, OX 40L receptor, ACT 35
  • Species:Human
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Cat. No. Size Price


RAF086R 96 wells (1 kit)
PubMed Product Details
Technical Data

Type

Sandwich ELISA, Biotin-labelled antibody

Applications

Serum, Cell culture supernatant

Sample Requirements

25 µl/well

Storage/Expiration

Store the complete kit at 2–8°C. Under these conditions, the kit is stable until the expiration date (see label on the box).

Calibration Curve

Calibration Range

78–5000 pg/ml

Limit of Detection

1.8 pg/ml

Intra-assay (Within-Run)

CV = 8.0%

Inter-assay (Run-to-Run)

CV = 12.0%

Spiking Recovery

88,00%

Dilutation Linearity

109,00%

Summary

Research topic

Cell surface proteins (sCD)

Summary

OX40 (CD134) is a member of the tumor necrosis (TNF) receptor superfamily and known to be an important costimulatory molecule expressed on activated T-cells. Interaction of OX40 with its ligand, OX40L, is thought to be important in T cell activation through T cell/antigen-presenting cell (APC) interaction. Ligation of OX40 induces clonal expansion and survival of CD4 cells during primary responses, and results in the accumulation of greater numbers of memory cells with time.
Further OX40 has been shown to be involved in the T cell adhesion to endothelium. Induction of CD134 by Interleukin-4 has been suggested, which thus acts in a TH-2 type cytokine environment. OX40 expression is found besides T cells in a small subpopulation of macrophages, in Langerhans cells, and in B-cells in non Hodgkin’s lymphoma. OX40 promotes Bcl-xL and Bcl-2 expression thus being a critical regulator of antigen-driven T cell survival. OX40 signaling renders adult T cell leukemia cells resistant to Fas-induced apoptosis.
It has been described as a molecule involved in regulating immunological tolerance, which represents a major obstacle in developing effective immunotherapy against tumors.
A soluble isoform of OX40 has been described. Measurement of this molecule may have diagnostic value in polymyositis and granulomatous myopathy, in T cell lymphoma and lymphomatoid papulosis, in proliferative lupus nephritis, in rheumatoid arthritis, in HIV infection, in viral infections of the lung, in the regulation of graft-versus-host disease, in myocarditis and dilated cardiomyopathy. The crucial role of OX40 in development of autoimmune diseases has further been shown.

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