MAPT and Alzheimer disease: Apart from XIST, several lncRNAs, including lncRNA brain cytoplasmic 200 (BC200), lncRNA sortilin-related receptor 1 antisense RNA1 (SORL1-AS1), lncRNA SOX21 antisense divergent transcript 1 (SOX21-AS1), and lncRNA nuclear paraspeckle assembly transcript 1 (NEAT1) are also implicated in the pathological process of AD including synaptic impairment, APP processing, and Aβ production and tau phosphorylation [114,115,116,117].