Unité de Traffic Membranaire et Pathogénèse, Institut Pasteur, Paris, France.
EMBO Rep. 2018 Aug;19(8). doi: 10.15252/embr.201846492. Epub 2018 Jul 2.
Inhibition of the receptor tyrosine kinase AXL, a key molecular driver of ovarian cancer, has recently been highlighted as promising therapeutic strategy. In this issue of , Antony 1 have identified a novel mechanism of inhibition of AXL, wherein the GPI‐anchored tumour suppressor OPCML sequesters AXL into specialised plasma membrane domains where the phosphatase PTPRG is located, therefore facilitating AXL dephosphorylation. This attenuation of AXL signalling has translational implications for the design of synergistic therapies, to target the kinase for this aggressive malignancy.
AXL 是卵巢癌的关键分子驱动因子,其受体酪氨酸激酶的抑制作用最近被强调为有前途的治疗策略。在本期的 中,Antony 1 等人确定了抑制 AXL 的一种新机制,即 GPI 锚定的肿瘤抑制因子 OPCML 将 AXL 隔离到特殊的质膜域,其中磷酸酶 PTPRG 所在的位置,从而促进 AXL 的去磷酸化。这种 AXL 信号转导的衰减对设计协同治疗具有转化意义,以针对这种侵袭性恶性肿瘤的激酶为靶点。