Further, miR-526b-3, miR29b-3p and miR93-3p elevated in Tibetan placentas could target STAT3, as reported in lung cancer, liver fibrosis, and renal cell carcinoma (Liu et al., 2019; Du and Kong, 2020; Gong et al., 2020). Here, STAT3 is linked to renal cell carcinoma.