ArticleRespiratory research2026
Protocadherin gamma subfamily A, 3 inhibits the proliferation and metastasis of lung adenocarcinoma by inhibiting transforming growth factor β signaling pathway.
Article in Respiratory research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundLung adenocarcinoma (LUAD) is a prevalent malignancy with poor clinical prognosis, and the specific role of PCDHGA3 in LUAD pathogenesis remains to be fully clarified and understood.
methodsTCGA, UCSC XENA, and Human Protein Atlas databases were comprehensively utilized to systematically analyze PCDHGA3 expression levels, clinical prognostic significance, DNA methylation status, and mutation patterns. GO, KEGG, and GSEA enrichment analyses were performed to identify related biological pathways and functions. Western blotting, wound healing assays, cell adhesion assays, CCK8 proliferation assays, and transwell migration assays evaluated PCDHGA3 biological functions. Animal models were employed to validate in vivo effects and mechanisms.
resultsPCDHGA3 demonstrated low expression in LUAD tissues. High mutation rates and altered methylation patterns indicated potential involvement in LUAD development. PCDHGA3 overexpression notably inhibited cancer cell proliferation and migration abilities in both in vitro and in vivo models. Moreover, PCDHGA3 overexpression markedly elevated E-cadherin protein levels while substantially reducing N-cadherin, phospho-SMAD2, phospho-SMAD3, and TGFβ protein levels.
conclusionPCDHGA3 inhibits LUAD progression and metastasis by suppressing the TGFβ signaling pathway, providing novel therapeutic insights.
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