ICOS (D1K2T™) Rabbit mAb #89601
- IHC
Supporting Data
| REACTIVITY | H |
| SENSITIVITY | Endogenous |
| MW (kDa) | 25-40 |
| Source/Isotype | Rabbit IgG |
Application Key:
- IHC-Immunohistochemistry
Species Cross-Reactivity Key:
- H-Human
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| IHC Leica Bond | 1:100 - 1:400 |
| Immunohistochemistry (Paraffin) | 1:100 - 1:400 |
Storage
For a carrier free (BSA and azide free) version of this product see product #39740.
Protocol
Specificity / Sensitivity
Species Reactivity:
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy terminus of human ICOS protein.
Background
ICOS (Inducible Co-Stimulator, CD278) is a member of the CD28 family that regulates T cell activity and immune responses (1). The ICOS protein contains an extracellular IgV-like domain, a transmembrane domain, and an intracellular domain with a YMFM motif (1-2). ICOS is primarily expressed on activated CD4+ and CD8+ T cells (1). Upon binding to its ligand, ICOS potentiates the T cell response to antigen through activation of the PI3K signaling pathway (3). In addition to enhancing T cell activation and proliferation, ICOS plays an important role in the regulation of T follicular helper cells (4). Research studies suggest that ICOS is a potential therapeutic target, and could serve as a prognostic biomarker for neoplastic therapy involving CTLA-4 blockade (5-7).
- Hutloff, A. et al. (1999) Nature 397, 263-6.
- Coyle, A.J. et al. (2000) Immunity 13, 95-105.
- Fos, C. et al. (2008) J Immunol 181, 1969-77.
- Hutloff, A. (2015) Oncotarget 6, 21785-6.
- Kyi, C. and Postow, M.A. (2014) FEBS Lett 588, 368-76.
- Fan, X. et al. (2014) J Exp Med 211, 715-25.
- Ng Tang, D. et al. (2013) Cancer Immunol Res 1, 229-34.
限制使用
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