| First Author | Song W | Year | 2020 |
| Journal | Mol Cancer Res | Volume | 18 |
| Issue | 11 | Pages | 1735-1743 |
| PubMed ID | 32753469 | Mgi Jnum | J:300746 |
| Mgi Id | MGI:6502823 | Doi | 10.1158/1541-7786.MCR-20-0075 |
| Citation | Song W, et al. (2020) Phosphorylation of PLCgamma1 by EphA2 Receptor Tyrosine Kinase Promotes Tumor Growth in Lung Cancer. Mol Cancer Res 18(11):1735-1743 |
| abstractText | EphA2 receptor tyrosine kinase (RTK) is often expressed at high levels in cancer and has been shown to regulate tumor growth and metastasis across multiple tumor types, including non-small cell lung cancer. A number of signaling pathways downstream of EphA2 RTK have been identified; however, mechanisms of EphA2 proximal downstream signals are less well characterized. In this study, we used a yeast-two-hybrid screen to identify phospholipase C gamma 1 (PLCgamma1) as a novel EphA2 interactor. EphA2 interacts with PLCgamma1 and the kinase activity of EphA2 was required for phosphorylation of PLCgamma1. In human lung cancer cells, genetic or pharmacologic inhibition of EphA2 decreased phosphorylation of PLCgamma1 and loss of PLCgamma1 inhibited tumor cell growth in vitro. Knockout of PLCgamma1 by CRISPR-mediated genome editing also impaired tumor growth in a Kras(G12D)-p53-Lkb1 murine lung tumor model. Collectively, these data show that the EphA2-PLCgamma1 signaling axis promotes tumor growth of lung cancer and provides rationale for disruption of this signaling axis as a potential therapeutic option. IMPLICATIONS: The EphA2-PLCG1 signaling axis promotes tumor growth of non-small cell lung cancer and can potentially be targeted as a therapeutic option. |
