產(chǎn)品編號 | IHC0657R |
英文名稱 | Rat CD8 Ready-To-Use IHC Kit |
中文名稱 | 大鼠CD8即用型免疫組化試劑盒 |
別 名 | CD8; CD8A; CD8B; CD8B1; LEU2; LY3; LYT3; MAL; p32; P37; CD8 antigen; alpha polypeptide (p32); CD8a; CD8a antigen; CD8a molecule; CD8A_HUMAN; Leu2; Leu2 T lymphocyte antigen; OKT8 T cell antigen; T cell antigen Leu2; T cell co receptor; T-cell surface glycoprotein CD8 alpha chain; T-lymphocyte differentiation antigen T8/Leu-2; T8 T cell antigen |
適用樣品基質(zhì) | FFPE tissue |
保存條件 | Please store components at the temperatures indicated on the individual tube labels. The kit is stable for 6 months from the date of receipt. |
產(chǎn)品介紹 |
CD8, also known as cluster of differentiation 8, is a type I transmembrane glycoprotein of the immunoglobulin family that plays a crucial role in T cell differentiation, activation, and signal transduction. It is expressed as either a heterodimer (CD8 alpha beta) or a homodimer (CD8 alpha alpha). The CD8 alpha beta form is predominantly found on the majority of thymocytes and a subpopulation of mature alpha beta TCR T cells, while the CD8 alpha alpha form is expressed on gamma delta TCR T cells, a subset of intestinal intraepithelial lymphocytes (IELs), and dendritic cells. CD8 functions as a co-receptor for major histocompatibility complex class I (MHC-I) molecules, working alongside the T cell receptor (TCR). The CD8 alpha chain is essential for binding to MHC-I. CD8 is also expressed on a subset of T cells, NK cells, monocytes, and dendritic cells as disulfide-linked homodimers of CD8 alpha. Upon ligation of MHC-I/peptide complexes presented by antigen-presenting cells (APCs), CD8 recruits lymphocyte-specific protein tyrosine kinase (Lck), leading to lymphokine production, increased motility, and activation of cytotoxic T lymphocytes (CTLs). Activated CTLs are vital for clearing pathogens and tumor cells. The differentiation of naive CD8+ T cells into CTLs is strongly enhanced by cytokines such as IL-2, IL-12, and TGF-beta1. Through its interactions with MHC-I and association with protein tyrosine kinase p56lck, CD8 plays a significant role in T cell development and the activation of mature T cells. SWISS: P01732 Gene ID: 925 |
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