ELFN1 and colon adenocarcinoma: Dong et al. treated human UC-MSCs with the siRNA anti-ELFN1-AS1 –a long non-coding RNA highly expressed in colon adenocarcinoma cells - and found that the EVs purified from siRNA-ELFN1-AS1-treated UC-MSCs could inhibit colon adenocarcinoma cells proliferation and migration in vitro.