MALAT1 and Hyperglycemia: Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is an important LncRNA, as it is activated under anoxia, hyperglycemia (Liu et al., 2014; Shaker et al., 2019; Cheng et al., 2020; Han et al., 2020), ultraviolet radiation, infection, and chemical stimulation and is involved in regulating cell proliferation (Zhang et al., 2018), apoptosis (Gu et al., 2017), differentiation, migration, epithelial–mesenchymal transformation (Lee et al., 2017), autophagy, and maintaining cellular morphology.