PCGEM1 and endometriosis: To interpret the biological functionality of the lncRNA PCGEM1 and anthrax toxin receptor 2 (ANTXR2) in endometriosis, we measured the PCGEM1 and ANTXR2 relative mRNA and protein expression levels in 10 paired ectopic (NE) and eutopic (Eu) endometrial tissues by qRT‒PCR (Fig. 1B-C) and Western blot analysis (Fig. 1D-E).