ABCG2 and neoplasm: In gastric malignancies, miR-19a/b has been recognized as the tumour promotor miRNA aids in drug resistance, and on the contrary, miR-107, miR-508-5p, and miR‐495 have been presented as the anti-oncogenes acting in an ABC transporter-dependent condition (Shang et al., 2014; Teng et al., 2015; Zou et al., 2017; Wang et al., 2013).