Volume 42, Issue 2 pp. 198-209
ORIGINAL ARTICLE

TRPV1 regulates inflammatory process in the tongue of surgically induced xerostomia mouse

Min H. Yoo PhD

Min H. Yoo PhD

Department of Innovative Toxicology Research, Korea Institute of Toxicology, Daejeon, Republic of Korea

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Yun-Hee Rhee PhD

Yun-Hee Rhee PhD

Laser Translational Clinical Trial Center, Dankook University Hospital, Cheonan, Republic of Korea

Beckman Laser Institute Korea, Dankook University, Cheonan, Republic of Korea

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JaeYun Jung MD, PhD

JaeYun Jung MD, PhD

Beckman Laser Institute Korea, Dankook University, Cheonan, Republic of Korea

Department of Otorhinolaryngology, College of Medicine, Dankook University, Cheonan, Republic of Korea

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Sang-Joon Lee MD, PhD

Sang-Joon Lee MD, PhD

Department of Otorhinolaryngology, College of Medicine, Dankook University, Cheonan, Republic of Korea

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Jung-Hwan Moon MD, PhD

Jung-Hwan Moon MD, PhD

Laser Translational Clinical Trial Center, Dankook University Hospital, Cheonan, Republic of Korea

Beckman Laser Institute Korea, Dankook University, Cheonan, Republic of Korea

Department of Otorhinolaryngology, College of Medicine, Dankook University, Cheonan, Republic of Korea

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Ji-Hun Mo MD, PhD

Corresponding Author

Ji-Hun Mo MD, PhD

Laser Translational Clinical Trial Center, Dankook University Hospital, Cheonan, Republic of Korea

Beckman Laser Institute Korea, Dankook University, Cheonan, Republic of Korea

Department of Otorhinolaryngology, College of Medicine, Dankook University, Cheonan, Republic of Korea

Correspondence

Ji-Hun Mo and Phil-Sang Chung, Department of Otorhinolaryngology, College of Medicine, Dankook University, Cheonan 31116, Republic of Korea.

Email: [email protected] (J.-H. M.) and [email protected] (P.-S. C.)

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Phil-Sang Chung MD, PhD

Corresponding Author

Phil-Sang Chung MD, PhD

Laser Translational Clinical Trial Center, Dankook University Hospital, Cheonan, Republic of Korea

Beckman Laser Institute Korea, Dankook University, Cheonan, Republic of Korea

Department of Otorhinolaryngology, College of Medicine, Dankook University, Cheonan, Republic of Korea

Correspondence

Ji-Hun Mo and Phil-Sang Chung, Department of Otorhinolaryngology, College of Medicine, Dankook University, Cheonan 31116, Republic of Korea.

Email: [email protected] (J.-H. M.) and [email protected] (P.-S. C.)

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First published: 13 November 2019
Citations: 4
Min H. Yoo and Yun-Hee Rhee contributed equally to this study
Section Editor: James Rocco

Funding information: Ministry of Health & Welfare, Republic of Korea, Grant/Award Number: HI15C1524; Ministry of Education and Science Technology (MEST), Grant/Award Number: NRF-2016R1A2B4010407

Abstract

Background

The aim of study is to investigate the role of transient receptor potential cation channel subfamily V member 1 (TRPV1) on xerostomia-induced inflammatory response in vivo.

Methods

Parotid, submandibular, and lingual gland were removed for xerostomia induction. The expression of inflammatory cytokines, TRPV1, NFkB, and MAPK in xerostomia was evaluated and compared in both TRPV1 wild and knockout mice.

Results

The level of interleukin-6 (IL-6) and IL-17, neutrophil/CD4 T-cell infiltration, phosphorylation of extracellular signal-regulated kinase (ERK) and c-Jun N terminal kinase, TRPV1, and the localization of NFkB were elevated in xerostomia-induced TRPV1 wild-type mice. In contrast, inflammatory cytokines and MAPK were decreased in xerostomia-induced TRPV1 knockout mice. TRPV1 antagonist treatment also reduced tongue ulceration, neutrophil/CD4+ T-cell expression, IL-6, and IL-17 in TRPV1 wild-type mice.

Conclusion

TRPV1 had a crucial role in modulating inflammation in xerostomia and targeting TRPV1 might be a promising therapeutic strategy for xerostomia.

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