Osteoglycin Inhibits the Progression of Lung Adenocarcinoma by Modulating ICAM1‐Mediated Cell Adhesion via the PI3K/AKT Pathway

Lung cancer is characterized by high aggressiveness and lethality, processing in-depth molecular mechanism investigation is particularly necessary. In our study, we found that osteoglycin (OGN) deficiency is strongly associated with a poor prognosis in lung adenocarcinoma (LUAD). OGN overexpression could inhibit the proliferation, migration, and invasion of LUAD cells. Through transcriptome sequencing analysis and experimental validation, we revealed that such OGN-mediated tumor suppression effect was related to cell adhesion function induced by ICAM1 downregulation, along with regulation by the PI3K/AKT signaling pathway. The present study demonstrated the specific mechanism of OGN involvement in LUAD progression, providing new evidence and potential targets for research on cancer suppression in LUAD.