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Wang B, Li Z, An W, Fan G, Li D, Qin L. Duct ligation/de-ligation model: exploring mechanisms for salivary gland injury and regeneration. Front Cell Dev Biol 2024; 12:1399934. [PMID: 38983787 PMCID: PMC11231214 DOI: 10.3389/fcell.2024.1399934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 06/07/2024] [Indexed: 07/11/2024] Open
Abstract
Sialadenitis and sialadenitis-induced sialopathy are typically caused by obstruction of the salivary gland ducts. Atrophy of the salivary glands in experimental animals caused by duct ligation exhibits a histopathology similar to that of salivary gland sialadenitis. Therefore, a variety of duct ligation/de-ligation models have been commonly employed to study salivary gland injury and regeneration. Duct ligation is mainly characterised by apoptosis and activation of different signaling pathways in parenchymal cells, which eventually leads to gland atrophy and progressive dysfunction. By contrast, duct de-ligation can initiate the recovery of gland structure and function by regenerating the secretory tissue. This review summarizes the animal duct ligation/de-ligation models that have been used for the examination of pathological fundamentals in salivary disorders, in order to unravel the pathological changes and underlying mechanisms involved in salivary gland injury and regeneration. These experimental models have contributed to developing effective and curative strategies for gland dysfunction and providing plausible solutions for overcoming salivary disorders.
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Affiliation(s)
- Bin Wang
- Department of Head and Neck Oncology, Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, China
| | - Zhilin Li
- Department of Head and Neck Oncology, Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, China
| | - Wei An
- Department of Oral and Maxillofacial Surgery, Shanxi Provincial People's Hospital, Shanxi Medical University, Taiyuan, China
| | - Gaiping Fan
- Department of Head and Neck Oncology, Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, China
| | - Dezhi Li
- Department of Head and Neck Oncology, Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, China
- Department of Head and Neck Oncology, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lizheng Qin
- Department of Oral and Maxillofacial and Head and Neck Oncology, Beijing Stomatological Hospital, Capital Medical University, Beijing, China
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Murayama K, Kawakami M, Tanaka A. Chronic Changes in the Atrophied Submandibular Gland after Long-term Ligation of the Main Excretory Duct in Mice. J HARD TISSUE BIOL 2017. [DOI: 10.2485/jhtb.26.13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Kazuyoshi Murayama
- Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Niigata, The Nippon Dental University
| | - Miyuki Kawakami
- Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Niigata, The Nippon Dental University
- Division of Cell Regeneration and Transplantation, Advanced Research Center, School of Life Dentistry at Niigata, The Nippon Dental University
| | - Akira Tanaka
- Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Niigata, The Nippon Dental University
- Division of Cell Regeneration and Transplantation, Advanced Research Center, School of Life Dentistry at Niigata, The Nippon Dental University
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Akadomari K, Tanaka A, Mataga I. Regenerative Capacity of Atrophic Submandibular Gland by Duct Ligation in Mice. J HARD TISSUE BIOL 2016. [DOI: 10.2485/jhtb.25.121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Keita Akadomari
- Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Niigata, The Nippon Dental University
| | - Akira Tanaka
- Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Niigata, The Nippon Dental University
| | - Izumi Mataga
- Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Tokyo, The Nippon Dental University
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Woods LT, Camden JM, El-Sayed FG, Khalafalla MG, Petris MJ, Erb L, Weisman GA. Increased Expression of TGF-β Signaling Components in a Mouse Model of Fibrosis Induced by Submandibular Gland Duct Ligation. PLoS One 2015; 10:e0123641. [PMID: 25955532 PMCID: PMC4425516 DOI: 10.1371/journal.pone.0123641] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 02/21/2015] [Indexed: 02/06/2023] Open
Abstract
Transforming growth factor-β (TGF-β) is a multi-functional cytokine with a well-described role in the regulation of tissue fibrosis and regeneration in the liver, kidney and lung. Submandibular gland (SMG) duct ligation and subsequent deligation in rodents is a classical model for studying salivary gland damage and regeneration. While previous studies suggest that TGF-β may contribute to salivary gland fibrosis, the expression of TGF-β signaling components has not been investigated in relation to mouse SMG duct ligation-induced fibrosis and regeneration following ductal deligation. Following a 7 day SMG duct ligation, TGF-β1 and TGF-β3 were significantly upregulated in the SMG, as were TGF-β receptor 1 and downstream Smad family transcription factors in salivary acinar cells, but not in ductal cells. In acinar cells, duct ligation also led to upregulation of snail, a Smad-activated E-cadherin repressor and regulator of epithelial-mesenchymal transition, whereas in ductal cells upregulation of E-cadherin was observed while snail expression was unchanged. Upregulation of these TGF-β signaling components correlated with upregulation of fibrosis markers collagen 1 and fibronectin, responses that were inhibited by administration of the TGF-β receptor 1 inhibitors SB431542 or GW788388. After SMG regeneration following a 28 day duct deligation, TGF-β signaling components and epithelial-mesenchymal transition markers returned to levels similar to non-ligated controls. The results from this study indicate that increased TGF-β signaling contributes to duct ligation-induced changes in salivary epithelium that correlate with glandular fibrosis. Furthermore, the reversibility of enhanced TGF-β signaling in acinar cells of duct-ligated mouse SMG after deligation indicates that this is an ideal model for studying TGF-β signaling mechanisms in salivary epithelium as well as mechanisms of fibrosis initiation and their resolution.
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Affiliation(s)
- Lucas T. Woods
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
| | - Jean M. Camden
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
| | - Farid G. El-Sayed
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
| | - Mahmoud G. Khalafalla
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
| | - Michael J. Petris
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- Department of Nutritional Sciences and Exercise Physiology, University of Missouri, Columbia, Missouri, United States of America
| | - Laurie Erb
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
| | - Gary A. Weisman
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- * E-mail:
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Ueda K, Shimizu O, Oka S, Saito M, Hide M, Matsumoto M. Distribution of tenascin-C, fibronectin and collagen types III and IV during regeneration of rat submandibular gland. Int J Oral Maxillofac Surg 2008; 38:79-84. [PMID: 19097859 DOI: 10.1016/j.ijom.2008.11.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2007] [Revised: 06/24/2008] [Accepted: 11/03/2008] [Indexed: 11/16/2022]
Abstract
The aim of this study was to determine the localization of tenascin-C, fibronectin and collagen types III and IV during regeneration of the rat submandibular gland. After 7 days' obstruction, the regenerating glands were collected at days 0, 1, 3, 5, 7, 11 and 14 after duct release to study regeneration. Immunohistochemical staining revealed that tenascin-C was strongly expressed in the epithelial cells of duct-acinar structures at days 0-3, and down-regulated in its expression from day 5 to 11, though weak expression was detected in the intercalated duct and acinar cells of the normal gland. Strong labeling of fibronectin was detected around duct-acinar structures during days 0-3 of regeneration. Type IV collagen was expressed strongly in the thickened basement membrane of acinar cells and duct-acinar structures during days 0-3, but weakly around large ducts, though type III collagen was expressed at consistent levels. These findings suggest that tenascin-C and fibronectin affect only the duct-acinar structures, and type IV but not type III collagen is involved in the regeneration of acinar cells.
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Affiliation(s)
- K Ueda
- Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry, Tokyo, Japan
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Zaia AA, Almeida OP, Line SR. Immunochemical analysis of laminin in duct-ligated submandibular glands of rats. J Oral Pathol Med 1997; 26:451-3. [PMID: 9416575 DOI: 10.1111/j.1600-0714.1997.tb00014.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Immunochemical methods have been used to study the expression of laminin during experimental atrophy of the submandibular gland of rats caused by ductal ligation. In normal submandibular glands, laminin immunoreactivity appeared as continuous linear staining around acini and ducts. In the ligated glands, it exhibited an irregular pattern and intensity. Staining was usually stronger around small ducts and acini, which were most prominent in glands ligated for 30 days. Immunoblot analysis showed that the laminin of the rat submandibular gland contains bands that correspond to the EHS alpha 1, beta 1 and gamma 1 chains, and that the composition of the laminin chains does not change during the atrophy.
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Affiliation(s)
- A A Zaia
- Faculdade de Odontologia de Piracicaba-UNICAMP, Piracicaba, Brazil
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