GPRC5A and neoplasm: Notably, cisplatin increased EphA2 and pS897/pY588, and BI‐D1870 blocked both the constitutive and cisplatin‐induced EphA2‐pS897 in the HGSC cells with high GPRC5A, concurrently increasing tumor‐suppressive EphA2‐pY588 (Fig 8C and D, Appendix Fig S7B).