PMID- 32218836 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 1792-1074 (Print) IS - 1792-1082 (Electronic) IS - 1792-1074 (Linking) VI - 19 IP - 4 DP - 2020 Apr TI - PEBP4 gene expression in lung squamous cell carcinoma: A meta-analysis-based study of the molecular pathways involved. PG - 2825-2831 LID - 10.3892/ol.2020.11386 [doi] AB - Previous studies have suggested increased activity of phosphatidylethanolamine binding protein 4 (PEBP4) may be associated with the prognosis of non-small cell lung cancer. However, to the best of our knowledge, no direct association between PEBP4 and lung squamous cell carcinoma (LSCC) has been reported. In the present study, a systematic review and meta-analysis was performed to examine the gene expression activity of PEBP4 in LSCC. A total of 10 out of 131 gene expression datasets from the Gene Expression Omnibus (GEO) were selected, including 574 samples (319 patients with LSCC and 255 healthy controls). Subsequently, multiple linear regression (MLR) was employed to study three potential influencing factors: Sample size, population region and study date. A literature-based pathway analysis was then conducted to examine the potential mechanisms through which PEBP4 may exert influence on LSCC. The results of a meta-analysis indicated that, in LSCC, PEBP4 exhibited significantly low expression levels (P<0.033), with mildly increased gene expression levels observed in three studies (log fold-change: 0.072-2.13). However, a significant between-study variance was observed from the heterogeneity analysis. MLR indicated that population region was a significant factor (P<0.0065), whereas sample size and study age were not (P>0.46). Eight functional pathways were subsequently identified, through which PEBP4 may influence the prognosis of LSCC and its response to treatment. The results of the present study suggested that the effects of PEBP4 on LSCC can be neglected in most cases of LSCC, where PEBP4 demonstrated decreased expression levels. However, in the case of PEBP4 overexpression, it may contribute to the progression of LSCC and lead to the development of drug resistance. CI - Copyright: (c) Yu et al. FAU - Yu, Guiping AU - Yu G AD - Department of Cardiothoracic Surgery, The Affiliated Jiangyin Hospital of Southeast University Medical College, Jiangyin, Jiangsu 214400, P.R. China. FAU - Zhong, Ning AU - Zhong N AD - Department of Cardiothoracic Surgery, The First People's Hospital of Kunshan, Kunshan, Jiangsu 215300, P.R. China. FAU - Huang, Bin AU - Huang B AD - Department of Cardiothoracic Surgery, The Affiliated Jiangyin Hospital of Southeast University Medical College, Jiangyin, Jiangsu 214400, P.R. China. FAU - Mi, Yedong AU - Mi Y AD - Department of Cardiothoracic Surgery, The Affiliated Jiangyin Hospital of Southeast University Medical College, Jiangyin, Jiangsu 214400, P.R. China. LA - eng PT - Journal Article DEP - 20200212 PL - Greece TA - Oncol Lett JT - Oncology letters JID - 101531236 PMC - PMC7068619 OTO - NOTNLM OT - gene expression OT - lung squamous cell carcinoma OT - meta-analysis OT - pathway analysis EDAT- 2020/03/29 06:00 MHDA- 2020/03/29 06:01 PMCR- 2020/02/12 CRDT- 2020/03/29 06:00 PHST- 2018/07/23 00:00 [received] PHST- 2019/05/17 00:00 [accepted] PHST- 2020/03/29 06:00 [entrez] PHST- 2020/03/29 06:00 [pubmed] PHST- 2020/03/29 06:01 [medline] PHST- 2020/02/12 00:00 [pmc-release] AID - OL-0-0-11386 [pii] AID - 10.3892/ol.2020.11386 [doi] PST - ppublish SO - Oncol Lett. 2020 Apr;19(4):2825-2831. doi: 10.3892/ol.2020.11386. Epub 2020 Feb 12.