PMID- 33458657 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220420 IS - 2618-6500 (Electronic) IS - 2148-5046 (Print) IS - 2148-5046 (Linking) VI - 35 IP - 3 DP - 2020 Sep TI - The Effects of Tofacitinib-Mediated Janus Kinase/Signal Transducers and Activators of the Transcription Signal Pathway Inhibition on Collagen Biosynthesis in Hepatic and Skin Fibroblast Cell Culture. PG - 343-350 LID - 10.46497/ArchRheumatol.2020.7568 [doi] AB - OBJECTIVES: This study aims to investigate the effects of Janus kinase/signal transducers and activators of the transcription (JAK/STAT) pathway inhibition on collagen biosynthesis in fibroblast cell culture by tofacitinib. MATERIALS AND METHODS: BJ-CRL-1474(R) (skin) and BRL3A(R) (hepatic) fibroblast cell cultures were proliferated in a suitable medium. Tofacitinib was administered to fibroblast cells proliferating in 96-well flasks at concentrations of 25, 50, 100, 200, 400, and 800 nM. Tissue inhibitor of metalloproteinase-1 (TIMP-1), matrix metalloproteinase-3 (MMP-3), transforming growth factor beta 1 (TGF-beta1), and hydroxyproline levels were measured using the enzyme-linked immunosorbent assay method. RESULTS: Tofacitinib showed cytotoxic effect on skin and liver cell culture. The cytotoxic effect of tofacitinib started at 100 nM (p<0.05). The highest effect was obtained at 800 nM. The time-dependent cytotoxic effect of tofacitinib was significantly higher at all concentrations after 72 hours than at 24 and 48 hours (p<0.05). The level of TGF-beta1 was significantly lower even at a tofacitinib concentration of 25 nM (p<0.05). There were significant decreases in MMP-3, TIMP-1, and hydroxyproline levels after tofacitinib administration (p<0.05). CONCLUSION: Tofacitinib inhibited fibroblast cell proliferation in a concentration-dependent manner in a fibroblast cell culture. However, further extensive animal and human studies are necessary to determine the clinical significance of this effect. CI - Copyright (c) 2020, Turkish League Against Rheumatism. FAU - SahIn, Mehtap AU - SahIn M AUID- ORCID: 0000-0003-4518-6489 AD - Department of Medical Biochemistry, Sivas Cumhuriyet University Medical Faculty, Sivas, Turkey. FAU - Aydin, Huseyin AU - Aydin H AUID- ORCID: 0000-0002-3194-830X AD - Department of Medical Biochemistry, Sivas Cumhuriyet University Medical Faculty, Sivas, Turkey. FAU - Altun, Ahmet AU - Altun A AUID- ORCID: 0000-0003-2056-8683 AD - Department of Pharmacology, Sivas Cumhuriyet University Medical Faculty, Sivas, Turkey. FAU - DerIn, Mehmet Emin AU - DerIn ME AUID- ORCID: 0000-0002-8830-8848 AD - Department of Internal Medicine, Rheumatology Unit, Sivas Cumhuriyet University Medical Faculty, Sivas, Turkey. FAU - SahIn, Ali AU - SahIn A AUID- ORCID: 0000-0002-6953-4276 AD - Department of Internal Medicine, Rheumatology Unit, Sivas Cumhuriyet University Medical Faculty, Sivas, Turkey. LA - eng PT - Journal Article DEP - 20200207 PL - Turkey TA - Arch Rheumatol JT - Archives of rheumatology JID - 101639000 PMC - PMC7788643 OTO - NOTNLM OT - Collagen OT - Janus kinase/signal transducers and activators of the transcription OT - fibroblast cell culture OT - tofacitinib COIS- Conflict of Interest: The authors declared no conflicts of interest with respect to the authorship and/or publication of this article. EDAT- 2021/01/19 06:00 MHDA- 2021/01/19 06:01 PMCR- 2020/02/07 CRDT- 2021/01/18 05:36 PHST- 2019/04/30 00:00 [received] PHST- 2019/09/24 00:00 [accepted] PHST- 2021/01/18 05:36 [entrez] PHST- 2021/01/19 06:00 [pubmed] PHST- 2021/01/19 06:01 [medline] PHST- 2020/02/07 00:00 [pmc-release] AID - 10.46497/ArchRheumatol.2020.7568 [doi] PST - epublish SO - Arch Rheumatol. 2020 Feb 7;35(3):343-350. doi: 10.46497/ArchRheumatol.2020.7568. eCollection 2020 Sep.