Gallic acid, a natural polyphenolic acid, induces apoptosis and inhibits proinflammatory gene expressions in rheumatoid arthritis fibroblast-like synoviocytes

Chong Hyeon Yoon, Soo Jin Chung, Sang Won Lee, YongBeom Park, Soo Kon Lee, Min Chan Park

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Objectives: To investigate whether gallic acid (3, 4, 5-trihydroxybenzoic acid), a natural polyphenolic acid found in gall nuts, sumac, oak bark, tea leaves, grapes and wine, has pro-apoptotic and anti-inflammatory effects on fibroblast-like synoviocytes (FLS) from patients with rheumatoid arthritis (RA). Methods: Viability of RA FLS was assessed using a MTT assay after gallic acid treatment. Apoptosis was assessed by TUNEL assay and caspase-3 activity was determined by a colorimetric assay. The levels of apoptosis-related proteins including Bcl-2, p-Akt, p53, and Bax were determined using western blot analyses, and the mRNA expressions of various pro-inflammatory mediators were measured using quantitative real-time PCR. Results: Cell viability of RA FLS was significantly decreased by treatment with 10 or more μM of gallic acid. Gallic acid treatment at the concentrations that do not affect cell viability (0.1 and 1. μM) induced cellular apoptosis of RA FLS. Treatment with 0.1 and 1. μM of gallic acid also resulted in a significant increase in caspase-3 activity and regulated the productions of Bcl-2, Bax, p53 and pAkt. The mRNA expression levels of pro-inflammatory cytokines (IL-1β, IL-6), chemokines (CCL-2/MCP-1, CCL-7/MCP-3), cyclooxygenase-2, and matrix metalloproteinase-9 from RA FLS were suppressed by the gallic acid treatment in dose-dependent manners. Conclusion: Gallic acid treatment was found to induce apoptosis of RA FLS through regulation of apoptosis-related protein expressions and to reduce the expression of pro-inflammatory genes in RA FLS. These data suggest that pro-apoptotic and anti-inflammatory activities of gallic acid may be used as a possible therapeutic option for RA.

Original languageEnglish
Pages (from-to)274-279
Number of pages6
JournalJoint Bone Spine
Volume80
Issue number3
DOIs
Publication statusPublished - 2013 May 1

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Gallic Acid
Rheumatoid Arthritis
Fibroblasts
Apoptosis
Gene Expression
Acids
Caspase 3
Therapeutics
Cell Survival
Anti-Inflammatory Agents
Rhus
Synoviocytes
Messenger RNA
Nuts
Matrix Metalloproteinase 9
In Situ Nick-End Labeling
Vitis
Tea
Wine
Cyclooxygenase 2

All Science Journal Classification (ASJC) codes

  • Rheumatology

Cite this

Yoon, Chong Hyeon ; Chung, Soo Jin ; Lee, Sang Won ; Park, YongBeom ; Lee, Soo Kon ; Park, Min Chan. / Gallic acid, a natural polyphenolic acid, induces apoptosis and inhibits proinflammatory gene expressions in rheumatoid arthritis fibroblast-like synoviocytes. In: Joint Bone Spine. 2013 ; Vol. 80, No. 3. pp. 274-279.
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abstract = "Objectives: To investigate whether gallic acid (3, 4, 5-trihydroxybenzoic acid), a natural polyphenolic acid found in gall nuts, sumac, oak bark, tea leaves, grapes and wine, has pro-apoptotic and anti-inflammatory effects on fibroblast-like synoviocytes (FLS) from patients with rheumatoid arthritis (RA). Methods: Viability of RA FLS was assessed using a MTT assay after gallic acid treatment. Apoptosis was assessed by TUNEL assay and caspase-3 activity was determined by a colorimetric assay. The levels of apoptosis-related proteins including Bcl-2, p-Akt, p53, and Bax were determined using western blot analyses, and the mRNA expressions of various pro-inflammatory mediators were measured using quantitative real-time PCR. Results: Cell viability of RA FLS was significantly decreased by treatment with 10 or more μM of gallic acid. Gallic acid treatment at the concentrations that do not affect cell viability (0.1 and 1. μM) induced cellular apoptosis of RA FLS. Treatment with 0.1 and 1. μM of gallic acid also resulted in a significant increase in caspase-3 activity and regulated the productions of Bcl-2, Bax, p53 and pAkt. The mRNA expression levels of pro-inflammatory cytokines (IL-1β, IL-6), chemokines (CCL-2/MCP-1, CCL-7/MCP-3), cyclooxygenase-2, and matrix metalloproteinase-9 from RA FLS were suppressed by the gallic acid treatment in dose-dependent manners. Conclusion: Gallic acid treatment was found to induce apoptosis of RA FLS through regulation of apoptosis-related protein expressions and to reduce the expression of pro-inflammatory genes in RA FLS. These data suggest that pro-apoptotic and anti-inflammatory activities of gallic acid may be used as a possible therapeutic option for RA.",
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Gallic acid, a natural polyphenolic acid, induces apoptosis and inhibits proinflammatory gene expressions in rheumatoid arthritis fibroblast-like synoviocytes. / Yoon, Chong Hyeon; Chung, Soo Jin; Lee, Sang Won; Park, YongBeom; Lee, Soo Kon; Park, Min Chan.

In: Joint Bone Spine, Vol. 80, No. 3, 01.05.2013, p. 274-279.

Research output: Contribution to journalArticle

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T1 - Gallic acid, a natural polyphenolic acid, induces apoptosis and inhibits proinflammatory gene expressions in rheumatoid arthritis fibroblast-like synoviocytes

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AU - Chung, Soo Jin

AU - Lee, Sang Won

AU - Park, YongBeom

AU - Lee, Soo Kon

AU - Park, Min Chan

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AB - Objectives: To investigate whether gallic acid (3, 4, 5-trihydroxybenzoic acid), a natural polyphenolic acid found in gall nuts, sumac, oak bark, tea leaves, grapes and wine, has pro-apoptotic and anti-inflammatory effects on fibroblast-like synoviocytes (FLS) from patients with rheumatoid arthritis (RA). Methods: Viability of RA FLS was assessed using a MTT assay after gallic acid treatment. Apoptosis was assessed by TUNEL assay and caspase-3 activity was determined by a colorimetric assay. The levels of apoptosis-related proteins including Bcl-2, p-Akt, p53, and Bax were determined using western blot analyses, and the mRNA expressions of various pro-inflammatory mediators were measured using quantitative real-time PCR. Results: Cell viability of RA FLS was significantly decreased by treatment with 10 or more μM of gallic acid. Gallic acid treatment at the concentrations that do not affect cell viability (0.1 and 1. μM) induced cellular apoptosis of RA FLS. Treatment with 0.1 and 1. μM of gallic acid also resulted in a significant increase in caspase-3 activity and regulated the productions of Bcl-2, Bax, p53 and pAkt. The mRNA expression levels of pro-inflammatory cytokines (IL-1β, IL-6), chemokines (CCL-2/MCP-1, CCL-7/MCP-3), cyclooxygenase-2, and matrix metalloproteinase-9 from RA FLS were suppressed by the gallic acid treatment in dose-dependent manners. Conclusion: Gallic acid treatment was found to induce apoptosis of RA FLS through regulation of apoptosis-related protein expressions and to reduce the expression of pro-inflammatory genes in RA FLS. These data suggest that pro-apoptotic and anti-inflammatory activities of gallic acid may be used as a possible therapeutic option for RA.

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