PMID- 37957027 OWN - NLM STAT- MEDLINE DCOM- 20240130 LR - 20240206 IS - 1521-2254 (Electronic) IS - 1099-498X (Linking) VI - 26 IP - 1 DP - 2024 Jan TI - Overexpression of VEGFA mediated by HIF-1 is associated with higher rate of spread through air spaces in resected lung adenocarcinomas. PG - e3625 LID - 10.1002/jgm.3625 [doi] AB - BACKGROUND: Spread through air spaces (STAS), a newly identified pattern of invasion in lung adenocarcinomas (LACs), is an unfavorable prognostic factor for patients with LAC, but the molecular characteristics and mechanisms underlying STAS have not been adequately explored. METHODS: In total, 650 pathologically confirmed invasive LAC patients who underwent curative resection between December 2019 and April 2020 were reviewed. Disease-free survival (DFS) and overall survival (OS) were analyzed using the log-rank test and the Cox proportional hazards model. A comparative deep sequencing analysis was conducted to explore the molecular characteristics underlying STAS. Vascular endothelial growth factor A (VEGFA) expression was evaluated by immunoblotting and immunohistochemical analysis using fresh tumor tissue and tissue microarray. RESULTS: STAS was more prevalent in patients with a smoking history (p < 0.001), high pathological TNM stage (p < 0.001), lymphovascular invasion (p < 0.001), visceral pleural invasion (p < 0.001) and micropapillary/solid histological subtypes (p < 0.001). STAS-negative patients had better DFS (p < 0.001) and OS (p = 0.003) compared to STAS-positive patients with invasive LACs, especially in the lymph node-negative population (p < 0.001). After RNA-sequencing analysis, hypoxia-inducible factor-1 (HIF-1) signaling was enriched and appeared to be strongly correlated with STAS, and more STAS-positive individuals were detected in the higher VEGFA-expressing group (p = 0.042). CONCLUSIONS: We demonstrated that STAS was an independent prognostic marker of poor clinical outcome, especially in lymph node-negative patients, and that higher VEGFA expression mediated by HIF-1 signaling was associated with an increased STAS rate. CI - (c) 2023 John Wiley & Sons Ltd. FAU - Guo, Liang AU - Guo L AD - Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China. FAU - Li, Shaoling AU - Li S AD - Department of Pathology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China. FAU - Wang, Xing AU - Wang X AD - Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. FAU - Zhu, Yuming AU - Zhu Y AD - Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China. FAU - Li, Juanjuan AU - Li J AUID- ORCID: 0000-0002-1431-492X AD - Department of Medical Oncology, Shanghai Pulmonary Hospital & Thoracic Cancer Institute, Tongji University School of Medicine, Shanghai, China. LA - eng GR - 22120220650/Fundamental Research Funds for the Central Universities/ PT - Journal Article DEP - 20231113 PL - England TA - J Gene Med JT - The journal of gene medicine JID - 9815764 RN - 0 (Vascular Endothelial Growth Factor A) RN - 0 (Hypoxia-Inducible Factor 1) RN - 0 (VEGFA protein, human) SB - IM MH - Humans MH - *Lung Neoplasms/genetics/surgery/pathology MH - Vascular Endothelial Growth Factor A/genetics MH - Hypoxia-Inducible Factor 1 MH - Neoplasm Invasiveness/pathology MH - *Adenocarcinoma of Lung/genetics/surgery/pathology MH - *Adenocarcinoma/genetics/surgery/pathology OTO - NOTNLM OT - VEGFA OT - hypoxia-inducible factor-1 OT - lung adenocarcinomas OT - prognosis OT - spread through air spaces EDAT- 2023/11/14 00:42 MHDA- 2024/01/30 12:42 CRDT- 2023/11/13 21:03 PHST- 2023/09/28 00:00 [revised] PHST- 2023/08/21 00:00 [received] PHST- 2023/10/16 00:00 [accepted] PHST- 2024/01/30 12:42 [medline] PHST- 2023/11/14 00:42 [pubmed] PHST- 2023/11/13 21:03 [entrez] AID - 10.1002/jgm.3625 [doi] PST - ppublish SO - J Gene Med. 2024 Jan;26(1):e3625. doi: 10.1002/jgm.3625. Epub 2023 Nov 13.