Article Publish Status: FREE
Abstract Title:

Tanshinone IIA induces apoptosis in fibroblast-like synoviocytes in rheumatoid arthritis via blockade of the cell cycle in the G2/M phase and a mitochondrial pathway.

Abstract Source:

Biol Pharm Bull. 2014 ;37(8):1366-72. Epub 2014 Jun 11. PMID: 24920239

Abstract Author(s):

Ligang Jie, Hongyan Du, Qingchun Huang, Song Wei, Runyue Huang, Weifeng Sun

Article Affiliation:

Ligang Jie


Tanshinone IIA (Tan IIA), a phytochemical derived from the roots of Salvia miltiorrhiza BUNGE, has been documented with anti-tumor, pro-apoptotic, and anti-inflammatory activities. Salvia miltiorrhiza has long been used to treat rheumatoid arthritis (RA). Apoptosis induction of RA-fibroblast-like synoviocytes (FLS) was suggested to be a potential therapeutic approach for RA. The aim of this study was to investigate whether Tan IIA promotes apoptosis in RA-affected FLS. In this study, the viability of an immortalized FLS cell line derived from RA patients was assessed by 3-(4,5-dimethylthiazol-2-yl)-5,3-carboxymethoxyphenyl-2,4-sulfophenyl-2H-tetrazolium (MTS) assay after Tan IIA treatment. Apoptosis was measured by terminal deoxyuridine triphosphate (dUTP) nick-end labeling (TUNEL) assay and flow cytometry. Cell cycle was evaluated by flow cytometry. The expressions of mitochondrial apoptosis-related molecules, including Bcl-2, Bax, mitochondrial cytochrome c (Cyt-c), cytosolic Cyt-c, apoptotic protease activating factor 1 (Apaf-1), procaspase-9, procaspase-3, caspase-9, and caspase-3 were determined by Western blotting. Our data demonstrate that Tan IIA induced apoptosis of RA-FLS, blocked the cell cycle in the G2/M phase, and regulated the protein expression of Bcl-2, Bax, and Apaf-1, the release of mitochondrial Cyt-c, and the activation of caspase-9 and caspase-3. The results support the conclusion Tan IIA treatment likely induces apoptosis of RA-FLS through blockade of the cell cycle in the G2/M phase and a mitochondrial pathway. These data suggest that Tan IIA may have therapeutic potential for RA.

Study Type : In Vitro Study

Print Options

Key Research Topics

Sayer Ji
Founder of GreenMedInfo.com

Subscribe to our informative Newsletter & get Nature's Evidence-Based Pharmacy

Our newsletter serves 500,000 with essential news, research & healthy tips, daily.

Download Now

500+ pages of Natural Medicine Alternatives and Information.

This website is for information purposes only. By providing the information contained herein we are not diagnosing, treating, curing, mitigating, or preventing any type of disease or medical condition. Before beginning any type of natural, integrative or conventional treatment regimen, it is advisable to seek the advice of a licensed healthcare professional.

© Copyright 2008-2020 GreenMedInfo.com, Journal Articles copyright of original owners, MeSH copyright NLM.