PMID- 29805594 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200930 IS - 1792-1074 (Print) IS - 1792-1082 (Electronic) IS - 1792-1074 (Linking) VI - 15 IP - 6 DP - 2018 Jun TI - Patient-derived tumor xenografts of lung squamous cell carcinoma alter long non-coding RNA profile but not responsiveness to cisplatin. PG - 8589-8603 LID - 10.3892/ol.2018.8401 [doi] AB - Lung squamous cell carcinoma (LSCC), the second most common type of lung cancer, has received limited attention. Patient-derived tumor xenografts (PDTXs) are useful preclinical models to reproduce the diverse heterogeneity of cancer, but it is important to identify potential variations during their establishment. A total of 18 PDTXs were established from 37 the surgical specimens and 16 were serially passaged to third generation. Second- and third-generation xenografts had a faster growth rate in mice. The tumor implantation success rate was associated with poorer differentiation, larger tumor volume and higher expression of Ki-67. The xenografts largely retained histological and key immunophenotypic features (including p53, p63, cytokeratin5/6, and E-cadherin). However, increased Ki-67 expression was identified in partial xenografts. Long non-coding RNA (lncRNA) and mRNA expression in third-generation xenografts differed from that of matched primary tumors. Gene Ontology and pathway analysis showed that mRNAs involved in cell cycle, and metabolism regulation were generally upregulated in xenografts, while those associated with immune responses were typically downregulated. Furthermore, the responses of xenografts to cisplatin were consistent with clinical outcome. In the present study, PDTXs of SCC were successfully established, and closely resembled their original tumor regarding their immunophenotype and response to cisplatin. Overall, PDTXS of LSCC altered the lncRNA profile and increased the proliferative activity of cancer cells, whilst retaining responsiveness to cisplatin. FAU - Lu, Dapeng AU - Lu D AD - Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui 230001, P.R. China. FAU - Luo, Peng AU - Luo P AD - Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui 230001, P.R. China. FAU - Zhang, Ju AU - Zhang J AD - Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui 230001, P.R. China. FAU - Ye, Yuanyuan AU - Ye Y AD - School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China. FAU - Wang, Qi AU - Wang Q AD - Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui 230001, P.R. China. FAU - Li, Ming AU - Li M AD - Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui 230001, P.R. China. FAU - Zhou, Hangcheng AU - Zhou H AD - Department of Pathology, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui 230001, P.R. China. FAU - Xie, Mingran AU - Xie M AD - Department of Thoracic Surgery, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui 230001, P.R. China. FAU - Wang, Baolong AU - Wang B AD - Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui 230001, P.R. China. LA - eng PT - Journal Article DEP - 20180330 PL - Greece TA - Oncol Lett JT - Oncology letters JID - 101531236 PMC - PMC5950531 OTO - NOTNLM OT - athymic nude mice OT - cell proliferation OT - cisplatin OT - gene expression OT - lung squamous cell carcinoma OT - patient-derived tumor xenograft EDAT- 2018/05/29 06:00 MHDA- 2018/05/29 06:01 PMCR- 2018/03/30 CRDT- 2018/05/29 06:00 PHST- 2017/11/03 00:00 [received] PHST- 2018/03/20 00:00 [accepted] PHST- 2018/05/29 06:00 [entrez] PHST- 2018/05/29 06:00 [pubmed] PHST- 2018/05/29 06:01 [medline] PHST- 2018/03/30 00:00 [pmc-release] AID - OL-0-0-8401 [pii] AID - 10.3892/ol.2018.8401 [doi] PST - ppublish SO - Oncol Lett. 2018 Jun;15(6):8589-8603. doi: 10.3892/ol.2018.8401. Epub 2018 Mar 30.