PMID- 34553218 OWN - NLM STAT- MEDLINE DCOM- 20220218 LR - 20220218 IS - 1745-7270 (Electronic) IS - 1672-9145 (Linking) VI - 53 IP - 11 DP - 2021 Nov 10 TI - Oct4 downregulation-induced inflammation increases the migration and invasion rate of oral squamous cell carcinoma. PG - 1440-1449 LID - 10.1093/abbs/gmab127 [doi] AB - Inflammatory changes are involved in tumor cell proliferation, migration, and invasion. Tumor necrosis factor-alpha (TNF-alpha) and lipopolysaccharide (LPS) play important roles in inflammatory regulation during tumor development. Oct4 acts as a transcription factor that modulates inflammatory changes in mesenchymal stem cells. In this study, we explored the role of Oct4 in the invasion and migration of oral squamous cell carcinoma (OSCC) cells. LPS and TNF-alpha were used to treat the OSCC cell lines HN4 and CAL27 to induce inflammation. The generation of inflammatory cytokines, including TNF-alpha, interleukin (IL)-1beta, and IL-6, was evaluated by enzyme-linked immunosorbent assay and real-time quantitative PCR. Western blot analysis was employed to detect the expression and phosphorylation of JNK1, p65, and STAT3, which are key modulators of inflammation. Wound scratch healing and transwell invasion assays were further used to determine the role of inflammation in the invasion and migration of OSCC cells. Robust inflammation was observed in HN4 and CAL27 cells treated with LPS and TNF-alpha. A marked increase in JNK1, p65, and STAT3 phosphorylation levels in OSCC cells was also detected after LPS and TNF-alpha treatment. The migration and invasion of HN4 and CAL27 cells were significantly boosted by stimulation with LPS and TNF-alpha. Furthermore, Oct4 mRNA and protein levels were significantly upregulated by stimulation with LPS and TNF-alpha. Silencing of Oct4 led to reduced inflammation and decreased levels of phosphorylated JNK1, p65, and STAT3 and impaired invasion and migration in LPS- and TNF-alpha-stimulated OSCC cells. Overall, LPS- and TNF-alpha-induced inflammation suppressed the migration and invasion of OSCC cells by upregulating Oct4 expression. CI - (c) The Author(s) 2021. Published by Oxford University Press on behalf of the Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - Sun, Shuntao AU - Sun S AD - Department of Stomatology, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China. FAU - Yang, Hongyu AU - Yang H AD - Department of Stomatology, Shenzhen Hospital, Peking University, Shenzhen 518035, China. FAU - Wang, Feng AU - Wang F AD - Department of Stomatology, Shenzhen Hospital, Peking University, Shenzhen 518035, China. FAU - Zhao, Shanshan AU - Zhao S AUID- ORCID: 0000-0002-4253-9333 AD - Department of Stomatology, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China. LA - eng GR - Tongde Hospital of Zhejiang Province/ PT - Journal Article PL - China TA - Acta Biochim Biophys Sin (Shanghai) JT - Acta biochimica et biophysica Sinica JID - 101206716 RN - 0 (IL1B protein, human) RN - 0 (IL6 protein, human) RN - 0 (Interleukin-1beta) RN - 0 (Interleukin-6) RN - 0 (Lipopolysaccharides) RN - 0 (Octamer Transcription Factor-3) RN - 0 (POU5F1 protein, human) RN - 0 (RELA protein, human) RN - 0 (RNA, Small Interfering) RN - 0 (STAT3 Transcription Factor) RN - 0 (STAT3 protein, human) RN - 0 (Transcription Factor RelA) RN - 0 (Tumor Necrosis Factor-alpha) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinase 8) SB - IM MH - Cell Line, Tumor MH - Cell Movement/drug effects MH - Cell Proliferation/drug effects MH - Diffusion Chambers, Culture MH - Epithelial Cells/*drug effects/metabolism/pathology MH - Gene Expression Regulation, Neoplastic MH - Humans MH - Inflammation MH - Interleukin-1beta/genetics/metabolism MH - Interleukin-6/genetics/metabolism MH - Lipopolysaccharides/*pharmacology MH - Mitogen-Activated Protein Kinase 8/genetics/metabolism MH - Models, Biological MH - Octamer Transcription Factor-3/antagonists & inhibitors/*genetics/metabolism MH - Phosphorylation/drug effects MH - *Protein Processing, Post-Translational MH - RNA, Small Interfering/genetics/metabolism MH - STAT3 Transcription Factor/genetics/metabolism MH - Signal Transduction MH - Transcription Factor RelA/genetics/metabolism MH - Tumor Necrosis Factor-alpha/genetics/metabolism/*pharmacology OTO - NOTNLM OT - Oct4 OT - inflammation OT - invasion OT - migration OT - oral squamous cell carcinoma (OSCC) EDAT- 2021/09/24 06:00 MHDA- 2022/02/19 06:00 CRDT- 2021/09/23 06:59 PHST- 2021/03/26 00:00 [received] PHST- 2021/09/24 06:00 [pubmed] PHST- 2022/02/19 06:00 [medline] PHST- 2021/09/23 06:59 [entrez] AID - 6374278 [pii] AID - 10.1093/abbs/gmab127 [doi] PST - ppublish SO - Acta Biochim Biophys Sin (Shanghai). 2021 Nov 10;53(11):1440-1449. doi: 10.1093/abbs/gmab127.