Areca nut extracts exert different effects in oral cancer cells depending on serum concentration: A clue to the various oral alterations in betel quid chewers

Betel quid chewing is associated with various pathologic alterations in oral mucosa. However, the molecular mechanism behind so many contradictory alterations remains unclear. Here we aimed to build a model to facilitate the related studies in cultured cells. In our results, areca nut extract (ANE)...

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Main Authors: Wen-Tsai Ji, Yao-Chi Chuang, Han-Po Chen, Ching-Chih Lee, Jeff Yi-Fu Chen, Sheng-Ru Yang, Jung-Hua Chen, Chun-Jen Wang, Hau-Ren Chen
Format: Article
Language:English
Published: Elsevier 2014-01-01
Series:Toxicology Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214750014001152
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author Wen-Tsai Ji
Yao-Chi Chuang
Han-Po Chen
Ching-Chih Lee
Jeff Yi-Fu Chen
Sheng-Ru Yang
Jung-Hua Chen
Chun-Jen Wang
Hau-Ren Chen
author_facet Wen-Tsai Ji
Yao-Chi Chuang
Han-Po Chen
Ching-Chih Lee
Jeff Yi-Fu Chen
Sheng-Ru Yang
Jung-Hua Chen
Chun-Jen Wang
Hau-Ren Chen
author_sort Wen-Tsai Ji
collection DOAJ
description Betel quid chewing is associated with various pathologic alterations in oral mucosa. However, the molecular mechanism behind so many contradictory alterations remains unclear. Here we aimed to build a model to facilitate the related studies in cultured cells. In our results, areca nut extract (ANE) was found to exert different effects in oral cells depending on the supplemented serum level. ANE strongly induced DNA damage, necrotic ballooning, and inflammatory cytokines under lower serum concentration while might convert to facilitate deregulated growth of serum-supplemented cells via modulating the activity/expression of factors such as E-cadherin and Snail. Despite ANE significantly activated NF-κB, a mediator critical for inflammation, inhibition of NF-κB did not prevent the activation of IL8 promoter. We further discovered Y705-dephosphorylated STAT3 might enhance IL8 transcription. Since necrosis and the inflammatory cytokines could cause massive inflammation, infiltration of interstitial fluid might potentiate cellular resistance against the acute cytotoxicity of ANE and further support the proliferation of transforming cells. Induction of VEGF and angiogenesis under lower serum condition also paved the way for cell growth and subsequent metastasis. Accordingly, we concluded that in correlation with serum infiltration ANE caused particular effects in oral cells and possibly the various clinicopathological alterations in vivo.
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spelling doaj.art-79e55e94edc24b0e98673a7b696434f42022-12-22T02:08:41ZengElsevierToxicology Reports2214-75002014-01-011C1087109510.1016/j.toxrep.2014.10.018Areca nut extracts exert different effects in oral cancer cells depending on serum concentration: A clue to the various oral alterations in betel quid chewersWen-Tsai Ji0Yao-Chi Chuang1Han-Po Chen2Ching-Chih Lee3Jeff Yi-Fu Chen4Sheng-Ru Yang5Jung-Hua Chen6Chun-Jen Wang7Hau-Ren Chen8Department of Urology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, TaiwanDepartment of Urology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, TaiwanDepartment of Life Science, Institute of Molecular Biology and Institute of Biomedical Science, National Chung Cheng University, Min-Hsiung, Chia-Yi, TaiwanDepartment of Otolaryngology, Buddhist Dalin Tzu Chi General Hospital, Chia-Yi, TaiwanDepartment of Biotechnology, Kaohsiung Medical University, Kaohsiung, TaiwanDepartment of Life Science, Institute of Molecular Biology and Institute of Biomedical Science, National Chung Cheng University, Min-Hsiung, Chia-Yi, TaiwanDepartment of Life Science, Institute of Molecular Biology and Institute of Biomedical Science, National Chung Cheng University, Min-Hsiung, Chia-Yi, TaiwanDepartment of Life Science, Institute of Molecular Biology and Institute of Biomedical Science, National Chung Cheng University, Min-Hsiung, Chia-Yi, TaiwanDepartment of Life Science, Institute of Molecular Biology and Institute of Biomedical Science, National Chung Cheng University, Min-Hsiung, Chia-Yi, TaiwanBetel quid chewing is associated with various pathologic alterations in oral mucosa. However, the molecular mechanism behind so many contradictory alterations remains unclear. Here we aimed to build a model to facilitate the related studies in cultured cells. In our results, areca nut extract (ANE) was found to exert different effects in oral cells depending on the supplemented serum level. ANE strongly induced DNA damage, necrotic ballooning, and inflammatory cytokines under lower serum concentration while might convert to facilitate deregulated growth of serum-supplemented cells via modulating the activity/expression of factors such as E-cadherin and Snail. Despite ANE significantly activated NF-κB, a mediator critical for inflammation, inhibition of NF-κB did not prevent the activation of IL8 promoter. We further discovered Y705-dephosphorylated STAT3 might enhance IL8 transcription. Since necrosis and the inflammatory cytokines could cause massive inflammation, infiltration of interstitial fluid might potentiate cellular resistance against the acute cytotoxicity of ANE and further support the proliferation of transforming cells. Induction of VEGF and angiogenesis under lower serum condition also paved the way for cell growth and subsequent metastasis. Accordingly, we concluded that in correlation with serum infiltration ANE caused particular effects in oral cells and possibly the various clinicopathological alterations in vivo.http://www.sciencedirect.com/science/article/pii/S2214750014001152Areca nut extract (ANE)NecrosisInflammationSerumSTAT3
spellingShingle Wen-Tsai Ji
Yao-Chi Chuang
Han-Po Chen
Ching-Chih Lee
Jeff Yi-Fu Chen
Sheng-Ru Yang
Jung-Hua Chen
Chun-Jen Wang
Hau-Ren Chen
Areca nut extracts exert different effects in oral cancer cells depending on serum concentration: A clue to the various oral alterations in betel quid chewers
Toxicology Reports
Areca nut extract (ANE)
Necrosis
Inflammation
Serum
STAT3
title Areca nut extracts exert different effects in oral cancer cells depending on serum concentration: A clue to the various oral alterations in betel quid chewers
title_full Areca nut extracts exert different effects in oral cancer cells depending on serum concentration: A clue to the various oral alterations in betel quid chewers
title_fullStr Areca nut extracts exert different effects in oral cancer cells depending on serum concentration: A clue to the various oral alterations in betel quid chewers
title_full_unstemmed Areca nut extracts exert different effects in oral cancer cells depending on serum concentration: A clue to the various oral alterations in betel quid chewers
title_short Areca nut extracts exert different effects in oral cancer cells depending on serum concentration: A clue to the various oral alterations in betel quid chewers
title_sort areca nut extracts exert different effects in oral cancer cells depending on serum concentration a clue to the various oral alterations in betel quid chewers
topic Areca nut extract (ANE)
Necrosis
Inflammation
Serum
STAT3
url http://www.sciencedirect.com/science/article/pii/S2214750014001152
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