A combined enteric neuron-gastric tumor organoid reveals metabolic vulnerabilities in gastric cancer
Becky K.C. Chan, Chu Zhang, Chi Him Poon, M. Lee, Hoi Yee Chu, Bei Wang, Sin-Guang Chen, Helen H.N. Yan, Suet Yi Leung, Alan S.L. Wong
Abstract
) values across diverse human gastric cancer organoids resistant to first-line treatments. Mechanistically, gastric cancer organoids and in vivo tumors exhibit lipid metabolic adaptations not seen in two-dimensional (2D) in vitro cultures. Additionally, enteric neurons modulate lipid metabolism in tumor organoids, altering drug sensitivity by up to two orders of magnitude. A neuron-cocultured CRISPR screen further reveals that acetyl-CoA carboxylase expression determines lanosterol synthase inhibitor efficacy. These findings highlight the critical roles of organoid environment and neuronal interaction in cancer lipid reliance.