
蛋白酪氨酸磷酸酶SHP-1在细胞信号系统中的负调控作用 - 丁香园
SHP-1 作为 PTP 中重要的一员,是改变胞内磷酸化水平的关键因子,当外源性信号分子同胞膜上受体结合后激发受体分子二聚化,与受体耦联的两面神激酶(JAK)互相靠拢,通过彼此的酪氨酸磷酸化而活化,活化后 JAK 催化受体自身的酪氨酸磷酸化,形成了 SHP-1 的停泊位点。 SHP-1 与受体上的停泊位点结合而被激活,催化 JAK 的酪氨酸去磷酸化,降低激酶催化活性,进而终止信号传导。 但具体而言, SHP-1 其在不同的细胞中可产生不尽相同的胞内信号,本文从以下各种 …
SHP-1 inhibition targets leukaemia stem cells to restore ... - Nature
2024年2月6日 · Here we demonstrate that inhibition of tyrosine phosphatase SHP-1 in LSCs increases their glycolysis and oxidative phosphorylation, enhancing their sensitivity to chemotherapy and vulnerability...
中山大学蒋琳加Trends in Cell Biology综述丨SHP1和SHP2双靶向策 …
2024年12月2日 · SHP1和SHP2是非受体蛋白酪氨酸磷酸酶(nonreceptor protein tyrosine phosphatase)家族蛋白成员,对造血和免疫系统的正常发育和功能调节至关重要,同时在肿瘤、淋巴瘤和白血病等疾病中频繁出现突变或者表达水平降低。 文章回顾了SHP1和SHP2在造血、免疫系统发育和功能调控方面的作用,重点讨论了抑制SHP1和SHP2减少肿瘤发生、化疗耐药,同时促进免疫监视,从而双管齐下地增强抗肿瘤的治疗效果。 有兴趣在 Trends in Cell Biology 发 …
SHP-1: the next checkpoint target for cancer immunotherapy?
2016年4月15日 · This review will discuss the potential value of SHP-1 inhibition in future tumour immunotherapy. Keywords: SHP-1; adoptive cell transfer; checkpoint inhibitors; protein tyrosine phosphatase inhibition; tumour immunotherapy.
SHP-1: the next checkpoint target for cancer immunotherapy?
SHP-1 [protein tyrosine phosphatase, non-receptor type 6 (PTPN6)] is expressed by all mature haematopoietic lineages and at low levels, in a different isoform, by endothelial cells . There is 95% homology between human and mouse SHP-1, …
SHP-1 and SHP-2 in T cells: two phosphatases functioning at …
SHP-1 or PTPN6 (previously also referred to as SH-PTP1, PTP1C, HCP, or Hcph) is expressed predominantly in hematopoietic cells of all lineages and all stages of maturation, while it is expressed at low levels in epithelial cells (21, 26–28, 31).
Mechanism study of tyrosine phosphatase shp-1 in inhibiting ...
2024年4月21日 · Detailed studies have shown that SHP-1 regulates SHP2 expression, and SHP-1 and SHP2 are involved in macrophage M2 polarisation. SHP-1 inhibits HOXA10 and TGFβ2 which in turn regulates the...
Nature子刊:中山大学蒋琳加/赵萌团队揭示代谢重编程调控免疫逃 …
2024年2月10日 · 该研究揭示了磷酸酶SHP-1在维持 白血病 干细胞 (LSC)化疗耐药性和 免疫 逃逸中的重要作用,为 急性髓系白血病 (AML)治疗提出了新的策略。 在这项研究中,研究团队运用单细胞测序技术对AML小鼠模型和人类患者样本进行了系统分析,发现化疗耐药的静息态LSC(chemoresistant LSC,crLSC)和快速增殖的活化态LSC(cycling LSC)在细胞周期、能量代谢、化疗耐药和免疫逃逸等生物学特征存在显著差异。 研究团队发现,非受体型酪氨酸磷 …
The function of the protein tyrosine phosphatase SHP-1 in cancer
2003年3月13日 · SHP-1, an SH2 domain-containing protein tyrosine phosphatase, is primarily expressed in hematopoietic cells and behaves as a key regulator controlling intracellular phosphotyrosine levels in lymphocytes.
SHP-1 调节 CD8+ T 细胞效应器功能,但由于阶段特异性非冗余功能中继,在 T 细胞耗竭中与 SHP …
We show that although SHP-1 negatively regulates CD8+ T cell effector function during acute lymphocytic choriomeningitis virus (LCMV) infection, it is dispensable for CD8+ T cell exhaustion during chronic LCMV infection.