J Dent Hyg Sci.  2018 Jun;18(3):188-193. 10.17135/jdhs.2018.18.3.188.

Effect of Resveratrol on Oral Cancer Cell Invasion Induced by Lysophosphatidic Acid

Affiliations
  • 1Department of Pharmacology, College of Medicine, Konyang University, Daejeon 35365, Korea. hoi@konyang.ac.kr

Abstract

The aim of the current study was to demonstrate the potential therapeutic efficacy of resveratrol in oral cancer patients. Lysophosphatidic acid (LPA) intensifies cancer cell invasion and metastasis, whereas resveratrol, a natural polyphenolic compound, possesses antitumor activity, suppressing cell proliferation and progression in various cancer cell lines (ovarian, gastric, oral, pancreatic, colon, and prostate cancer cells). In addition, resveratrol has been identified as an inhibitor of LPA-induced proteolytic enzyme expression and ovarian cancer invasion. Furthermore, resveratrol was shown to inhibit oral cancer cell invasion by downregulating hypoxia-inducible factor 1α and vascular endothelial growth factor expression. Recently, we demonstrated that LPA is important for the expression of transcription factors TWIST and SLUG during epithelial-mesenchymal transition (EMT) in oral squamous carcinoma cells. In this study, we treated serum-starved cultures of oral squamous carcinoma cell line YD-10B with resveratrol for 24 hours prior to stimulation with LPA. To identify an optimal resveratrol concentration that does not induce apoptosis in oral squamous carcinoma cells, we determined the toxicity of resveratrol in YD-10B cells by assessing their viability using the MTT assay. Another assay was performed using Matrigel-coated cell culture inserts to detect oral cancer cell invasion activity. Immunoblotting was applied for analyzing protein expression of SLUG, TWIST1, E-cadherin, and GAPDH. We demonstrated that resveratrol efficiently inhibited LPA-induced oral cancer cell EMT and invasion by downregulating SLUG and TWIST1 expression. Therefore, resveratrol may potentially reduce oral squamous carcinoma cell invasion and metastasis in oral cancer patients, improving their survival outcomes. In summary, we identified new targets for the development of therapies against oral cancer progression and characterized the therapeutic potential of resveratrol for the treatment of oral cancer patients.

Keyword

Epithelial-mesenchymal transition; Lysophospholipids; Mouth neoplasms; Stilbenes

MeSH Terms

Apoptosis
Cadherins
Carcinoma, Squamous Cell
Cell Culture Techniques
Cell Line
Cell Proliferation
Colon
Epithelial-Mesenchymal Transition
Gastropoda
Humans
Immunoblotting
Lysophospholipids
Mouth Neoplasms*
Neoplasm Metastasis
Ovarian Neoplasms
Prostatic Neoplasms
Stilbenes
Transcription Factors
Vascular Endothelial Growth Factor A
Cadherins
Lysophospholipids
Stilbenes
Transcription Factors
Vascular Endothelial Growth Factor A
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