Mass Spectrometry and Pharmacological Approaches to Measuring Cooption and Reciprocal Activation of Receptor Tyrosine Kinases.

Mass Spectrometry and Pharmacological Approaches to Measuring Cooption and Reciprocal Activation of Receptor Tyrosine Kinases.
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DOI:
10.3390/proteomes11020020
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发表时间:
2023-06-02
期刊:
影响因子:
3.3
通讯作者:
Haley JD
Haley JD
中科院分区:
其他
文献类型:
--
作者:
Linzer J;Phelps Z;Vummidi S;Lee BYE;Coant N;Haley JD

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受体酪氨酸激酶(RTK)可以直接或间接地显示广泛的串扰。阐明RTK串扰仍然是抗癌疗法的临床组合中的重要目标。在这里,我们提出了质谱和药理学方法显示肝细胞生长因子受体(MET)促进酪氨酸磷酸化的表皮生长因子受体(EGFR)和其他膜受体在MET扩增的H1993 NSCLC细胞。相反,在H292 wt-EGFR NSCLC细胞中,EGFR促进MET的酪氨酸磷酸化。在GEO CRC细胞中观察到EGFR和胰岛素受体(IR)的相互调节,其中EGFR的抑制驱动胰岛素受体的酪氨酸磷酸化。类似地,在血小板衍生生长因子受体(PDGFR)扩增的H1703 NSCLC细胞中,EGFR的抑制促进PDGFR的酪氨酸磷酸化。这些RTK交互用于说明适用于其他RTK信令网络的基本原理。更具体地说,我们专注于两种类型的RTK相互作用:(1)一个RTK的co-option另一个和(2)一个受体的相互激活后,抑制一个不同的受体。
Receptor tyrosine kinases (RTKs) can show extensive crosstalk, directly and indirectly. Elucidating RTK crosstalk remains an important goal in the clinical combination of anti-cancer therapies. Here, we present mass spectrometry and pharmacological approaches showing the hepatocyte growth factor receptor (MET)-promoting tyrosine phosphorylation of the epidermal growth factor receptor (EGFR) and other membrane receptors in MET-amplified H1993 NSCLC cells. Conversely, in H292 wt-EGFR NSCLC cells, EGFR promotes the tyrosine phosphorylation of MET. Reciprocal regulation of the EGFR and insulin receptor (IR) was observed in the GEO CRC cells, where inhibition of the EGFR drives tyrosine phosphorylation of the insulin receptor. Similarly, in platelet-derived growth factor receptor (PDGFR)-amplified H1703 NSCLC cells, inhibition of the EGFR promotes the tyrosine phosphorylation of the PDGFR. These RTK interactions are used to illustrate basic principles applicable to other RTK signaling networks. More specifically, we focus on two types of RTK interaction: (1) co-option of one RTK by another and (2) reciprocal activation of one receptor following the inhibition of a distinct receptor.
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