GACAT2 and gastric cancer: GACAT2 (HMlincRNA717) was previously reported to be aberrantly expressed in gastric cancer tissues, gastric precancerous lesions and gastric cell lines, which indicated that GACAT2 may be pivotal in the occurrence and progression of gastric carcinoma.65–67 Our data provide the first indication that GACAT2 is a key regulator of mitochondrial function and may thus be targeted to reverse the cementogenesis of PDLSCs in an inflammatory environment.