
Killer-cell immunoglobulin-like receptor - Wikipedia
Killer-cell immunoglobulin-like receptors (KIRs), are a family of type I transmembrane glycoproteins expressed on the plasma membrane of natural killer (NK) cells and a minority of T cells. [1][2] In humans, they are encoded in the leukocyte receptor complex (LRC) on chromosome 19q13.4; the KIR region is approximately 150 kilobases and contains ...
浅谈NK细胞受体 KIR的功能与临床意义 - 搜狐
2021年2月2日 · 杀伤细胞免疫球蛋白样受体(KIRs)在记忆性T细胞和NK细胞上表达,是NK细胞功能的关键调节因子。 KIR及其配体MHC-I类(HLA-A、-B、-C)分子具有高度多态性,特殊的相互作用会影响一些疾病的发生率、进展和结果,如妊娠并发症、病毒感染、自身免疫性疾病和血液系统恶性肿瘤。 因此,深入了解KIR-MHC-I类相互作用的分子机制有助于疾病的治疗策略。 NK细胞受体与配体. 根据基因表型与数量,KIRs分为两种单倍型 (haplotype):A和B。 A单倍型包 …
KIR3DL2:杀伤细胞免疫球蛋白样受体(KIR)家族蛋白,T细胞淋 …
2024年2月28日 · 杀伤细胞免疫球蛋白样受体(Killer Cell Immunoglobulin-like Receptors, KIR,即CD158)是一个由14个多态性基因编码的受体家族(KIR2DL1 、 2DL2 、 2DL3 、 2DL4 、2DL5; KIR3DL1 、 3DL2 、 3DL3; KIR2DS1 、 2DS2 、 2DS3 、 2DS4 、 2DS5; KIR3DS1)。 KIR家族的成员被分为两种类型:KIR2D和KIR3D。 KIR的命名基于其胞外区的结构特征(2D vs 3D,代表胞外免疫球蛋白样区域的数目)和胞质尾区的长度(L,长vs S,短) …
KIR Receptors as Key Regulators of NK Cells Activity in Health and ...
To a high extent cytotoxic activity of NK cells is regulated inter alia by signals from killer immunoglobulin-like receptors (KIR). The major histocompatibility complex (MHC) class I molecules are important ligands for KIR receptors.
168141: Killer Immunoglobulin-like Receptors (KIR) - Labcorp
The function of natural killer cells in the immune response is regulated by killer immunoglobulin-like receptors (KIR). These receptors interact with class I HLA antigens on the cell surface to prevent or activate killing of the target cell.
KIR+CD8+ and NKG2A+CD8+ T cells are distinct innate-like
2023年3月28日 · Subsets of the human CD8 + T cell population express inhibitory NK cell receptors, such as killer immunoglobulin-like receptors (KIRs) and NKG2A. In the present study, we examine the phenotypic and functional characteristics of …
RELT 蛋白质家族:人们越来越意识到它们对癌症、免疫系统和发 …
本综述重点介绍了淋巴组织中表达的受体 (RELT)(肿瘤坏死因子超家族成员)及其两个旁系同源物 RELL1 和 RELL2。 这三种蛋白质统称为 RELTfms,由于它们与癌症和其他人类疾病的相关性,近年来引起了人们的广泛关注。 目前缺乏对其生理功能(包括 RELT 配体)的全面了解,但新出现的证据表明 RELTfms 参与多种过程,包括细胞因子信号传导和促进细胞死亡或存活的途径。 缺乏 RELT 的小鼠的 T 细胞表现出对肿瘤的反应增强和炎症细胞因子产生增加,多种证据表明 …
Polymorphic KIR3DL3 expression modulates tissue-resident and …
2023年6月30日 · Human killer immunoglobulin-like receptor (KIR) KIR3DL3 has been characterized as a conserved but polymorphic inhibitory KIR that can recognize HHLA2, but the receptor’s function is unclear. Palmer et al. used high-resolution flow cytometry and single-cell transcriptomics to characterize KIR3DL3-expressing cells.
High-Resolution Characterization of KIR Genes in a Large North …
The KIR (killer-cell immunoglobulin-like receptor) region is characterized by structural variation and high sequence similarity among genes, imposing technical difficulties for analysis. We undertook the most comprehensive study to date of KIR ...
Killer Ig-Like Receptors (KIRs): Their Role in NK Cell ... - PubMed
2019年5月28日 · The discovery of HLA class I specific inhibitory receptors, primarily of killer Ig-like receptors (KIRs), and of activating receptors has been fundamental to unravel NK cell function and the molecular mechanisms of tumor cell killing.