PMID- 29779272 OWN - NLM STAT- MEDLINE DCOM- 20190503 LR - 20200325 IS - 2618-0456 (Electronic) IS - 1000-1182 (Print) IS - 1000-1182 (Linking) VI - 36 IP - 2 DP - 2018 Apr 1 TI - [Effects of protein kinase C and motigen-activated protein kinase kinase/extracellular regulated protein kinases signaling pathway on mRNA level of inducible nitric oxide synthase in Tca8113 cells]. PG - 133-139 LID - 10.7518/hxkq.2018.02.004 [doi] AB - OBJECTIVE: To explore the regulatory mechanism of inducible nitric oxide synthase (NOS-2) expression related to proliferation of Tca8113 cells. METHODS: RNAi mediated by short hairpin RNAs was utilized to knock down NOS-2, protein kinase C (PKC)-alpha, PKC-beta and PKC-delta. Griess Reagent played a significant role on the detection of NO product after NOS-2 silence. The cell proliferation was determined by CCK8 method. Quantitative real-time polymerase chain reaction (q-PCR) was recruited to check the mRNA level of NOS-2, PKC-alpha, PKC-beta and PKC-delta after treated by a variety of ways. Eventually, the measure of phosphorylation of extracellular regulated protein kinases (ERK)1/2 was performed by Western blotting in PMA-treated Tca8113 cells. RESULTS: The cell viability of Tca8113 decreased obviously after transfected with NOS-2 siRNA (P<0.01). PKC reduced the expression level of NOS-2 mRNA (P<0.05). PKC-alpha, PKC-beta and PKC-delta worked together to regulate the level of NOS-2 mRNA (P<0.01). Motigen-activated protein kinase kinase (MEK)/ERK signaling pathway regulated the level of NOS-2 mRNA negatively (P<0.05). PKC down regulated the level of NOS-2 mRNA through MEK/ERK signaling pathway (P<0.05). CONCLUSIONS: PKC regulates the mRNA level of NOS-2 related to proliferation through MEK/ERK signaling pathway in Tca8113 cells. FAU - Gao, Xue-Feng AU - Gao XF AD - The Affiliated Stomatological Hospital of Harbin Medical University, Harbin 150001, China. FAU - Jiao, Hai-Bin AU - Jiao HB AD - The Affiliated Stomatological Hospital of Harbin Medical University, Harbin 150001, China. FAU - Ye, Chang-Cheng AU - Ye CC AD - The Affiliated Stomatological Hospital of Harbin Medical University, Harbin 150001, China. FAU - Liu, Ying-Qun AU - Liu YQ AD - The Affiliated Stomatological Hospital of Harbin Medical University, Harbin 150001, China. LA - chi PT - Journal Article PL - China TA - Hua Xi Kou Qiang Yi Xue Za Zhi JT - Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology JID - 9422648 RN - 0 (RNA, Messenger) RN - 31C4KY9ESH (Nitric Oxide) RN - EC 1.14.13.39 (Nitric Oxide Synthase) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type II) RN - EC 2.7.11.13 (Protein Kinase C) RN - EC 2.7.11.24 (Extracellular Signal-Regulated MAP Kinases) SB - IM MH - Cell Proliferation MH - Extracellular Signal-Regulated MAP Kinases MH - Gene Knockdown Techniques MH - Nitric Oxide MH - Nitric Oxide Synthase MH - Nitric Oxide Synthase Type II/metabolism MH - *Protein Kinase C/metabolism/physiology MH - *RNA, Messenger/metabolism MH - *Signal Transduction PMC - PMC7030351 OTO - NOTNLM OT - cell proliferation OT - inducible nitric oxide synthase OT - motigen-activated protein kinase kinase/extracellular regulated protein kinases signaling pathway OT - protein kinase C EDAT- 2018/05/21 06:00 MHDA- 2019/05/06 06:00 PMCR- 2018/04/01 CRDT- 2018/05/21 06:00 PHST- 2018/05/21 06:00 [entrez] PHST- 2018/05/21 06:00 [pubmed] PHST- 2019/05/06 06:00 [medline] PHST- 2018/04/01 00:00 [pmc-release] AID - wcjs-36-02-133 [pii] AID - 10.7518/hxkq.2018.02.004 [doi] PST - ppublish SO - Hua Xi Kou Qiang Yi Xue Za Zhi. 2018 Apr 1;36(2):133-139. doi: 10.7518/hxkq.2018.02.004.