GAS6 and neoplasm: To figure out whether TPC‐EV‐induced EPC angiogenic function was mediated by EV‐Gas6, Gas6 was depleted in tumour perivascular cells by transfecting with Gas6‐specific siRNAs (Figure 6c) and Gas6‐deficient TPC‐EVs (TPC‐EV‐(siGas6)) were generated (Figure 6d).