TCF7L2 and Behcet disease: Our identification of the “T-3” glucocorticoid-responsive lncRNA-TCF7L2 (Fig. 2), a non-coding transcript that regulates the expression of both TCF7L2 mRNA and of genes involved in insulin signaling pathways in hiPSC-derived astrocytes (Fig. 3) may help to explain, in part, the correlation of glucocorticoid signaling, insulin signaling, and BMI in BD.