1
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Gunning JA, Limesand KH. Chronic Phenotypes Underlying Radiation-Induced Salivary Gland Dysfunction. J Dent Res 2024; 103:778-786. [PMID: 38808518 DOI: 10.1177/00220345241252396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024] Open
Abstract
Head and neck cancer (HNC) is the sixth most diagnosed cancer, and treatment typically consists of surgical removal of the tumor followed by ionizing radiation (IR). While excellent at controlling tumor growth, IR often damages salivary glands due to their proximity to common tumor sites. Radiation damage to salivary glands results in loss of secretory function, causing severe and chronic reductions in salivary flow. This leads to the patient-reported sensation of dry mouth, termed xerostomia, which significantly reduces quality of life for HNC patients and survivors. The mechanisms underlying salivary gland damage remain elusive, and therefore, treatment options are scarce. Available therapies provide temporary symptom relief, but there is no standard of care for permanent restoration of function. There is a significant gap in understanding the chronic mechanistic responses to radiation as well as treatments that can be given in the months to years following cessation of treatment. HNC cases are steadily rising; particularly, the number of young patients diagnosed with nonfatal human papillomavirus + HNC continues to increase. The growing number of HNC diagnoses and improved prognoses results in more people living with xerostomia, which highlights the mounting need for restorative treatments. Mechanisms underlying chronic damage include decreases in acinar differentiation markers, increases in acinar cell proliferation, immune and inflammatory dysregulation, and metabolic changes including increases in amino acids and reductions in glycolysis and oxidative phosphorylation, fibrosis, and dysregulated neuronal responses. Currently, promising treatment options include adenoviral gene transfers and stem cell therapy. Thus, this review describes in depth known mechanisms contributing to chronic damage and discusses therapeutic advances in treating chronically damaged glands. Understanding the chronic response to radiation offers potential in development of new therapeutics to reverse salivary gland damage and improve the quality of life of HNC survivors.
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Affiliation(s)
- J A Gunning
- Department of Nutritional Sciences, The University of Arizona, Tucson, AZ, USA
| | - K H Limesand
- Department of Nutritional Sciences, The University of Arizona, Tucson, AZ, USA
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2
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Yoshimoto S, Yada N, Ishikawa A, Kawano K, Matsuo K, Hiraki A, Okamura K. TGF-β3 from fibroblasts promotes necrotising sialometaplasia by suppressing salivary gland cell proliferation and inducing squamous metaplasia. J Pathol 2024; 263:338-346. [PMID: 38594209 DOI: 10.1002/path.6287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/25/2024] [Accepted: 03/20/2024] [Indexed: 04/11/2024]
Abstract
Necrotising sialometaplasia (NSM) is a non-neoplastic lesion mainly arising in the minor salivary glands of the oral cavity. In the clinical features, NSM shows swelling with or without ulceration, and can mimic a malignant disease such as squamous cell carcinoma. Histopathologically, NSM usually shows the lobular architecture that is observed in the salivary glands. Additionally, acinar infarction and squamous metaplasia of salivary ducts and acini are observable. The aetiology of this lesion remains unknown, although it has a characteristic feature that sometimes requires clinical and histopathological differentiation from malignancy. In this study, we investigated upregulated genes in NSM compared with normal salivary glands, and focused on the TGF-β3 (TGFB3) gene. The results of the histopathological studies clarified that fibroblasts surrounding the lesion express TGF-β3. Moreover, in vitro studies using mouse salivary gland organoids revealed that TGF-β3 suppressed salivary gland cell proliferation and induced squamous metaplasia. We demonstrated a possible aetiology of NSM by concluding that increased TGF-β3 expression during wound healing or tissue regeneration played a critical role in cell proliferation and metaplasia. © 2024 The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Shohei Yoshimoto
- Section of Pathology, Department of Morphological Biology, Division of Biomedical Sciences, Fukuoka Dental College, Fukuoka, Japan
- Oral Medicine Research Center, Fukuoka Dental College, Fukuoka, Japan
| | - Naomi Yada
- Department of Health Promotion, Division of Oral Pathology, Kyushu Dental University, Kitakyushu, Japan
| | | | - Kenji Kawano
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Oita University, Oita, Japan
| | - Kou Matsuo
- Department of Health Promotion, Division of Oral Pathology, Kyushu Dental University, Kitakyushu, Japan
| | - Akimitsu Hiraki
- Section of Oral Oncology, Department of Oral and Maxillofacial Surgery, Division of Oral and Medical Management, Fukuoka Dental College, Fukuoka, Japan
| | - Kazuhiko Okamura
- Section of Pathology, Department of Morphological Biology, Division of Biomedical Sciences, Fukuoka Dental College, Fukuoka, Japan
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3
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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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4
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Muñoz Forti K, Weisman GA, Jasmer KJ. Cell type-specific transforming growth factor-β (TGF-β) signaling in the regulation of salivary gland fibrosis and regeneration. J Oral Biol Craniofac Res 2024; 14:257-272. [PMID: 38559587 PMCID: PMC10979288 DOI: 10.1016/j.jobcr.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 01/13/2024] [Accepted: 03/09/2024] [Indexed: 04/04/2024] Open
Abstract
Salivary gland damage and hypofunction result from various disorders, including autoimmune Sjögren's disease (SjD) and IgG4-related disease (IgG4-RD), as well as a side effect of radiotherapy for treating head and neck cancers. There are no therapeutic strategies to prevent the loss of salivary gland function in these disorders nor facilitate functional salivary gland regeneration. However, ongoing aquaporin-1 gene therapy trials to restore saliva flow show promise. To identify and develop novel therapeutic targets, we must better understand the cell-specific signaling processes involved in salivary gland regeneration. Transforming growth factor-β (TGF-β) signaling is essential to tissue fibrosis, a major endpoint in salivary gland degeneration, which develops in the salivary glands of patients with SjD, IgG4-RD, and radiation-induced damage. Though the deposition and remodeling of extracellular matrix proteins are essential to repair salivary gland damage, pathological fibrosis results in tissue hardening and chronic salivary gland dysfunction orchestrated by multiple cell types, including fibroblasts, myofibroblasts, endothelial cells, stromal cells, and lymphocytes, macrophages, and other immune cell populations. This review is focused on the role of TGF-β signaling in the development of salivary gland fibrosis and the potential for targeting TGF-β as a novel therapeutic approach to regenerate functional salivary glands. The studies presented highlight the divergent roles of TGF-β signaling in salivary gland development and dysfunction and illuminate specific cell populations in damaged or diseased salivary glands that mediate the effects of TGF-β. Overall, these studies strongly support the premise that blocking TGF-β signaling holds promise for the regeneration of functional salivary glands.
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Affiliation(s)
- Kevin Muñoz Forti
- Christopher S. Bond Life Sciences Center and Department of Biochemistry, University of Missouri, United States
| | - Gary A. Weisman
- Christopher S. Bond Life Sciences Center and Department of Biochemistry, University of Missouri, United States
| | - Kimberly J. Jasmer
- Christopher S. Bond Life Sciences Center and Department of Biochemistry, University of Missouri, United States
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5
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Nelson DA, Kazanjian I, Melendez JA, Larsen M. Senescence and fibrosis in salivary gland aging and disease. J Oral Biol Craniofac Res 2024; 14:231-237. [PMID: 38516126 PMCID: PMC10951459 DOI: 10.1016/j.jobcr.2024.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 01/07/2024] [Accepted: 02/23/2024] [Indexed: 03/23/2024] Open
Abstract
Salivary gland hypofunction is highly prevalent in aged and diseased individuals leading to significant discomfort and morbidity. One factor that contributes to salivary gland hypofunction is cellular aging, or senescence. Senescent cells can impair gland function by secreting paracrine-acting growth factors and cytokines, known as senescence-associated secretory phenotype (SASP) factors. These SASP factors stimulate inflammation, propagate the senescent phenotype through the bystander effect, and stimulate fibrosis. As senotherapeutics that target senescent cells have shown effectiveness in limiting disease manifestations in other conditions, there is interest in the use of these drugs to treat salivary gland hypofunction. In this review, we highlight the contribution of senescence and fibrosis to salivary gland pathologies. We also discuss therapeutic approaches to eliminate or modulate the senescent SASP phenotype for treating age-related salivary gland diseases and extending health span.
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Affiliation(s)
- Deirdre A. Nelson
- Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, USA
- The RNA Institute, University at Albany, State University of New York, Albany, NY, USA
| | - Isabella Kazanjian
- Department of Educational Theory and Practice, University at Albany, State University of New York, Albany, NY, USA
| | - J. Andres Melendez
- College of Nanotechnology, Science, and Engineering, University at Albany, State University of New York, Albany, NY, USA
| | - Melinda Larsen
- Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, USA
- The RNA Institute, University at Albany, State University of New York, Albany, NY, USA
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6
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Jiao YR, Chen KX, Tang X, Tang YL, Yang HL, Yin YL, Li CJ. Exosomes derived from mesenchymal stem cells in diabetes and diabetic complications. Cell Death Dis 2024; 15:271. [PMID: 38632264 PMCID: PMC11024187 DOI: 10.1038/s41419-024-06659-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/31/2024] [Accepted: 04/08/2024] [Indexed: 04/19/2024]
Abstract
Diabetes, a group of metabolic disorders, constitutes an important global health problem. Diabetes and its complications place a heavy financial strain on both patients and the global healthcare establishment. The lack of effective treatments contributes to this pessimistic situation and negative outlook. Exosomes released from mesenchymal stromal cells (MSCs) have emerged as the most likely new breakthrough and advancement in treating of diabetes and diabetes-associated complication due to its capacity of intercellular communication, modulating the local microenvironment, and regulating cellular processes. In the present review, we briefly outlined the properties of MSCs-derived exosomes, provided a thorough summary of their biological functions and potential uses in diabetes and its related complications.
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Affiliation(s)
- Yu-Rui Jiao
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Kai-Xuan Chen
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Xiang Tang
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Yu-Long Tang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, China
| | - Hai-Lin Yang
- Department of Orthopaedics, The Second Affiliated Hospital of Fuyang Normal University, Fuyang, Anhui, 236000, China
| | - Yu-Long Yin
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, China.
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, 410128, China.
| | - Chang-Jun Li
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
- Key Laboratory of Aging-related Bone and Joint Diseases Prevention and Treatment, Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
- Laboratory Animal Center, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
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Altrieth A, Kenney J, Nelson D, Suarez E, Gellatly V, Gabunia S, Larsen M. Single-Cell Transcriptomic Analysis of Salivary Gland Endothelial Cells. J Dent Res 2024; 103:269-278. [PMID: 38411696 PMCID: PMC10985389 DOI: 10.1177/00220345231219987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024] Open
Abstract
Vascular endothelial cells have important tissue-specific functions in fibrosis and regeneration. In the salivary gland, endothelial cells are required for proper development, but their roles within adult glands are largely unknown. To identify ligand-receptor interactions between endothelial cells and other cell types that may be important during fibrosis and regeneration, we used a reversible ductal ligation injury. To induce injury, a clip was applied to the primary ducts for 14 d, and to induce a regenerative response, the clip was subsequently removed for 5 d. To identify endothelial cell-produced factors, we used single-cell RNA sequencing of stromal-enriched cells from adult female submandibular and sublingual salivary glands. Transcriptional profiles of homeostatic salivary gland endothelial cells were compared to endothelial cells of other organs. Salivary gland endothelial cells expressed many unique genes and displayed the highest overlap in gene expression with other fenestrated endothelial cells from the colon, small intestine, and kidney. Comparison of the 14-d ligated, mock-ligated, and 5-d deligated stromal-enriched transcripts and lineage tracing revealed that endothelial cells retain their identity following ligation and recovery from injury. CellChat and NATMI were used to predict changes in ligand-receptor interactions from endothelial cells to other cells in response to ligation and deligation. CellChat and NATMI predicted that after ligation, interactions with fibroblasts, epithelial cells, and glial cells were increased, and following deligation, interactions with pericyte, glia, fibroblasts, and immune cells were increased. Some of the highest-ranked interactions predicted in ligated compared to mock endothelial cells were between glial cells via Col4a2-Cd93 and Jag2-Notch1, as well as epithelial cells via Pecam1-Cd38, while in deligated compared to ligated endothelial cells, the top interactions were between fibroblasts via Ntf3-Ntrk2, glial cells via Hspg2-Itgb1, and pericytes via Jam2-F11r. Understanding salivary gland endothelial cell signaling will inform future endothelial cell-based regenerative therapies.
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Affiliation(s)
- A.L. Altrieth
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, USA
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, USA
- Department of Pathology & Laboratory Medicine, The University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC 27599, USA
| | - J. Kenney
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, USA
| | - D.A. Nelson
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, USA
| | - E.G. Suarez
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, USA
| | - V. Gellatly
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, USA
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, USA
| | - S. Gabunia
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, USA
| | - M. Larsen
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, USA
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, USA
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8
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Mosaddad SA, Hussain A, Tebyaniyan H. Exploring the Use of Animal Models in Craniofacial Regenerative Medicine: A Narrative Review. TISSUE ENGINEERING. PART B, REVIEWS 2024; 30:29-59. [PMID: 37432898 DOI: 10.1089/ten.teb.2023.0038] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
The craniofacial region contains skin, bones, cartilage, the temporomandibular joint (TMJ), teeth, periodontal tissues, mucosa, salivary glands, muscles, nerves, and blood vessels. Applying tissue engineering therapeutically helps replace lost tissues after trauma or cancer. Despite recent advances, it remains essential to standardize and validate the most appropriate animal models to effectively translate preclinical data to clinical situations. Therefore, this review focused on applying various animal models in craniofacial tissue engineering and regeneration. This research was based on PubMed, Scopus, and Google Scholar data available until January 2023. This study included only English-language publications describing animal models' application in craniofacial tissue engineering (in vivo and review studies). Study selection was based on evaluating titles, abstracts, and full texts. The total number of initial studies was 6454. Following the screening process, 295 articles remained on the final list. Numerous in vivo studies have shown that small and large animal models can benefit clinical conditions by assessing the efficacy and safety of new therapeutic interventions, devices, and biomaterials in animals with similar diseases/defects to humans. Different species' anatomical, physiologic, and biological features must be considered in developing innovative, reproducible, and discriminative experimental models to select an appropriate animal model for a specific tissue defect. As a result, understanding the parallels between human and veterinary medicine can benefit both fields.
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Affiliation(s)
- Seyed Ali Mosaddad
- Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmed Hussain
- School of Dentistry, Edmonton Clinic Health Academy, University of Alberta, Edmonton, Canada
| | - Hamid Tebyaniyan
- Department of Science and Research, Islimic Azade University, Tehran, Iran
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9
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Wang L, Zhong NN, Wang X, Peng B, Chen Z, Wei L, Li B, Li Y, Cheng Y. Metformin Attenuates TGF-β1-Induced Fibrosis in Salivary Gland: A Preliminary Study. Int J Mol Sci 2023; 24:16260. [PMID: 38003450 PMCID: PMC10671059 DOI: 10.3390/ijms242216260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/05/2023] [Accepted: 11/11/2023] [Indexed: 11/26/2023] Open
Abstract
Fibrosis commonly arises from salivary gland injuries induced by factors such as inflammation, ductal obstruction, radiation, aging, and autoimmunity, leading to glandular atrophy and functional impairment. However, effective treatments for these injuries remain elusive. Transforming growth factor-beta 1 (TGF-β1) is fundamental in fibrosis, advancing fibroblast differentiation into myofibroblasts and enhancing the extracellular matrix in the salivary gland. The involvement of the SMAD pathway and reactive oxygen species (ROS) in this context has been postulated. Metformin, a type 2 diabetes mellitus (T2DM) medication, has been noted for its potent anti-fibrotic effects. Through human samples, primary salivary gland fibroblasts, and a rat model, this study explored metformin's anti-fibrotic properties. Elevated levels of TGF-β1 (p < 0.01) and alpha-smooth muscle actin (α-SMA) (p < 0.01) were observed in human sialadenitis samples. The analysis showed that metformin attenuates TGF-β1-induced fibrosis by inhibiting SMAD phosphorylation (p < 0.01) through adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK)-independent pathways and activating the AMPK pathway, consequently suppressing NADPH oxidase 4 (NOX4) (p < 0.01), a main ROS producer. Moreover, in rats, metformin not only reduced glandular fibrosis post-ductal ligation but also protected acinar cells from ligation-induced injuries, thereby normalizing the levels of aquaporin 5 (AQP5) (p < 0.05). Overall, this study underscores the potential of metformin as a promising therapeutic option for salivary gland fibrosis.
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Affiliation(s)
- Lianhao Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Nian-Nian Zhong
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Xiaofeng Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Boyuan Peng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Zhuo Chen
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Lili Wei
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
- Department of Oral Radiology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Bo Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
- Department of Oral Radiology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Yuhong Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Yong Cheng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
- Department of Oral Radiology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
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10
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Altrieth AL, Suarez E, Nelson DA, Gabunia S, Larsen M. Single-cell Transcriptomic Analysis of Salivary Gland Endothelial Cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.22.545817. [PMID: 37425911 PMCID: PMC10327062 DOI: 10.1101/2023.06.22.545817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Vascular endothelial cells have important functions in fibrosis via direct and indirect methods and in regeneration through secretion of tissue-specific, paracrineacting angiocrine factors. In the salivary gland, endothelial cells are required for proper development, but their roles within adult glands are largely unknown. The goal of this work was to identify ligand-receptor interactions between endothelial cells and other cell types that are important during homeostasis, fibrosis, and regeneration. To model salivary gland fibrosis and regeneration, we utilized a reversible ductal ligation. To induce injury, a clip was applied to the primary ducts for 14 days, and to induce a regenerative response, the clip was subsequently removed for 5 days. To identify endothelial cell-produced factors, we used single-cell RNA-sequencing of stromal-enriched cells from adult submandibular and sublingual salivary glands. Transcriptional profiles of homeostatic salivary gland endothelial cells were compared to endothelial cells of other organs. Salivary gland endothelial cells were found to express unique genes and displayed the highest overlap in gene expression with other fenestrated endothelial cells from the colon, small intestine, and kidney. Comparison of the 14-day ligated, mock ligated, and 5-day deligated stromal-enriched transcripts and lineage tracing were used to identify evidence for a partial endoMT phenotype, which was observed in a small number of endothelial cell subsets with ligation. CellChat was used to predict changes in ligand-receptor interactions in response to ligation and deligation. CellChat predicted that after ligation, endothelial cells are sources of protein tyrosine phosphatase receptor type m, tumor necrosis factor ligand superfamily member 13, and myelin protein zero signaling and targets for tumor necrosis factor signaling. Following deligation, CellChat predicted that endothelial cells are sources of chemokine (C-X-C motif) and EPH signaling to promote regenerative responses. These studies will inform future endothelial cell-based regenerative therapies.
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Affiliation(s)
- Amber L. Altrieth
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, New York, USA
| | - Emily Suarez
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
| | - Deirdre A. Nelson
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
| | - Sergo Gabunia
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
| | - Melinda Larsen
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, New York, USA
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11
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Altrieth AL, O’Keefe KJ, Gellatly VA, Tavarez JR, Feminella SM, Moskwa NL, Cordi CV, Turrieta JC, Nelson DA, Larsen M. Identifying fibrogenic cells following salivary gland obstructive injury. Front Cell Dev Biol 2023; 11:1190386. [PMID: 37287453 PMCID: PMC10242138 DOI: 10.3389/fcell.2023.1190386] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/11/2023] [Indexed: 06/09/2023] Open
Abstract
Fibrosis results from excess extracellular matrix accumulation, which alters normal tissue architecture and impedes function. In the salivary gland, fibrosis can be induced by irradiation treatment for cancer therapy, Sjögren's Disease, and other causes; however, it is unclear which stromal cells and signals participate in injury responses and disease progression. As hedgehog signaling has been implicated in fibrosis of the salivary gland and other organs, we examined contributions of the hedgehog effector, Gli1, to fibrotic responses in salivary glands. To experimentally induce a fibrotic response in female murine submandibular salivary glands, we performed ductal ligation surgery. We detected a progressive fibrotic response where both extracellular matrix accumulation and actively remodeled collagen significantly increased at 14 days post-ligation. Macrophages, which participate in extracellular matrix remodeling, and Gli1+ and PDGFRα+ stromal cells, which may deposit extracellular matrix, both increased with injury. Using single-cell RNA-sequencing, Gli1 + cells were not found in discrete clusters at embryonic day 16 but were found in clusters expressing the stromal genes Pdgfra and/or Pdgfrb. In adult mice, Gli1+ cells were similarly heterogeneous but more cells co-expressed PDGFRα and PDGFRβ. Using Gli1-CreERT2; ROSA26tdTomato lineage-tracing mice, we found that Gli1-derived cells expand with ductal ligation injury. Although some of the Gli1 lineage-traced tdTomato+ cells expressed vimentin and PDGFRβ following injury, there was no increase in the classic myofibroblast marker, smooth muscle alpha-actin. Additionally, there was little change in extracellular matrix area, remodeled collagen area, PDGFRα, PDGFRβ, endothelial cells, neurons, or macrophages in Gli1 null salivary glands following injury when compared with controls, suggesting that Gli1 signaling and Gli1+ cells have only a minor contribution to mechanical injury-induced fibrotic changes in the salivary gland. We used scRNA-seq to examine cell populations that expand with ligation and/or showed increased expression of matrisome genes. Some Pdgfra + /Pdgfrb + stromal cell subpopulations expanded in response to ligation, with two stromal cell subpopulations showing increased expression of Col1a1 and a greater diversity of matrisome genes, consistent with these cells being fibrogenic. However, only a few cells in these subpopulations expressed Gli1, consistent with a minor contribution of these cells to extracellular matrix production. Defining the signaling pathways driving fibrotic responses in stromal cell sub-types could reveal future therapeutic targets.
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Affiliation(s)
- Amber L. Altrieth
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, United States
- Molecular, Cellular, Developmental and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, United States
| | - Kevin J. O’Keefe
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, United States
- Molecular, Cellular, Developmental and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, United States
| | - Victoria A. Gellatly
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, United States
- Molecular, Cellular, Developmental and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, United States
| | - Joey R. Tavarez
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, United States
- Molecular, Cellular, Developmental and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, United States
| | - Sage M. Feminella
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, United States
| | - Nicholas L. Moskwa
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, United States
- Molecular, Cellular, Developmental and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, United States
| | - Carmalena V. Cordi
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, United States
| | - Judy C. Turrieta
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, United States
| | - Deirdre A. Nelson
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, United States
| | - Melinda Larsen
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, NY, United States
- Molecular, Cellular, Developmental and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, United States
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12
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Yokoyama M, Katsumata-Kato O, Fujita-Yoshigaki J. Acinar Cell Proliferation Promoted by BMP2 in Injured Mouse Parotid Gland: BMP2 Promotes Cell Proliferation in Parotid Gland. Int J Dent 2023; 2023:1765317. [PMID: 37033127 PMCID: PMC10081898 DOI: 10.1155/2023/1765317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 03/01/2023] [Accepted: 03/06/2023] [Indexed: 04/03/2023] Open
Abstract
Objective. To identify factors that affect salivary gland recovery, we investigated the expression and function of bone morphogenetic protein 2 (BMP2) in mice. Materials and Methods. Using a micro clip, mice parotid glands were removed 7 days after the ligation of the unilateral parotid excretory duct. Thereafter, they were weighed and stained with hematoxylin and eosin, and BMP2 expression was examined via real-time reverse transcription-polymerase chain reaction. Primary cultures of parotid glands were prepared, and BMP2 protein was added to the culture medium for 48 hr to examine its effect on cell proliferation. E-cadherin and vimentin expression was examined using western blotting. Finally, immunohistochemical staining using an anti-Ki67 antibody was performed. Results. Duct-ligated parotid glands weighed less than those that were collected after sham surgery and showed acinar cell atrophy. They also showed higher BMP2 expression than control glands. Primary-cultured parotid acinar cells supplemented with BMP2 showed higher proliferative potential than control cells. Furthermore, they showed E-cadherin, but not vimentin, expression, and their percentage of Ki67-positive cells were higher than that corresponding to the controls. Conclusions. Injury to salivary glands by excretory duct ligation increased BMP2 expression, which may be involved in maintaining salivary gland function by inducing acinar cell proliferation.
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Affiliation(s)
- Megumi Yokoyama
- Department of Physiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Osamu Katsumata-Kato
- Department of Physiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
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13
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Altrieth AL, O’Keefe KJ, Gellatly VA, Tavarez JR, Feminella SM, Moskwa NL, Cordi CV, Turrieta JC, Nelson DA, Larsen M. Identifying Fibrogenic Cells Following Salivary Gland Obstructive Injury. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.09.531751. [PMID: 36945483 PMCID: PMC10028956 DOI: 10.1101/2023.03.09.531751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
Fibrosis results from excess extracellular matrix accumulation, which alters normal tissue architecture and impedes function. In the salivary gland, fibrosis can be induced by irradiation treatment for cancer therapy, Sjögren's Disease, and other causes; however, it is unclear which stromal cells and signals participate in injury responses and disease progression. As hedgehog signaling has been implicated in fibrosis of the salivary gland and other organs, we examined contributions of the hedgehog effector, Gli1, to fibrotic responses in salivary glands. To experimentally induce a fibrotic response in female murine submandibular salivary glands, we performed ductal ligation surgery. We detected a progressive fibrotic response where both extracellular matrix accumulation and actively remodeled collagen trended upwards at 7 days and significantly increased at 14 days post- ligation. Macrophages, which participate in extracellular matrix remodeling, Gli1 + and PDGFRα + stromal cells, which may deposit extracellular matrix, both increased with injury. Using single-cell RNA-sequencing, we found that a majority of Gli1 + cells at embryonic day 16 also express Pdgfra and/or Pdgfrb. However, in adult mice, only a small subset of Gli1 + cells express PDGFRα and/or PDGFRβ at the protein level. Using lineage-tracing mice, we found that Gli1-derived cells expand with ductal ligation injury. Although some of the Gli1 lineage-traced tdTomato + cells expressed vimentin and PDGFRβ following injury, there was no increase in the classic myofibroblast marker, smooth muscle alpha-actin. Additionally, there was little change in extracellular matrix area, remodeled collagen area, PDGFRα, PDGFRβ, endothelial cells, neurons, or macrophages in Gli1 null salivary glands following injury when compared with controls, suggesting that Gli1 signaling and Gli1 + cells have only a minor contribution to mechanical injury-induced fibrotic changes in the salivary gland. We used scRNA-seq to examine cell populations that expand with ligation and/or showed increased expression of matrisome genes. Pdgfra + /Pdgfrb + stromal cell subpopulations both expanded in response to ligation, showed increased expression and a greater diversity of matrisome genes expressed, consistent with these cells being fibrogenic. Defining the signaling pathways driving fibrotic responses in stromal cell sub-types could reveal future therapeutic targets.
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Affiliation(s)
- Amber L. Altrieth
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, New York, USA
| | - Kevin J. O’Keefe
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, New York, USA
- Current Location: Carl Zeiss Microscopy, LLC, White Plains, New York, USA
| | - Victoria A. Gellatly
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, New York, USA
| | - Joey R. Tavarez
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, New York, USA
| | - Sage M. Feminella
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
- Current Location: Albany Medical College, Albany, New York, USA
| | - Nicholas L. Moskwa
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, New York, USA
- Current Location: The Jackson Laboratory, Farmington, Connecticut, USA
| | - Carmalena V. Cordi
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
- Current Location: Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, New York, USA
| | - Judy C. Turrieta
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
| | - Deirdre A. Nelson
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
| | - Melinda Larsen
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, Albany, New York, USA
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, Department of Biological Sciences, University at Albany, State University of New York, Albany, New York, USA
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14
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Yang Y, Zi Y, Conglin D, Chunmei Z, Liang H, Songlin W. The NF-κB pathway plays a vital role in rat salivary gland atrophy model. Heliyon 2023; 9:e14288. [PMID: 36950625 PMCID: PMC10025116 DOI: 10.1016/j.heliyon.2023.e14288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 02/18/2023] [Accepted: 03/01/2023] [Indexed: 03/10/2023] Open
Abstract
Objective The aim of this study was to explore the histopathological and genetic changes in the submandibular glands after duct ligation and provide important clues to functional regeneration. Design We established a rat salivary gland duct ligation model and observed pathological changes in the rat submandibular gland on day 1 and weeks 1, 2, 3, and 4 using hematoxylin and eosin staining, Alcian blue-periodic acid Schiff staining, Masson staining, terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL), and immunohistochemical staining. RNA sequencing was performed on normal salivary glands and those from the ligation model after 1 week. Significantly differentially expressed genes were selected, and Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed. Results Apoptosis levels and histological and functional KEGG pathway analyses showed that injury to the salivary gland after ligation gradually increased. The TGF-β pathway was activated and promoted fibrosis. RNA sequencing results and further verification of samples at week 1 showed that the NF-κB pathway plays a vital role in salivary gland atrophy. Conclusions Our results detailed the pathological changes in the submandibular gland after ligation and the important functions of the NF-κB pathway.
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Affiliation(s)
- Yang Yang
- Department of Oral and Maxillofacial & Head and Neck Oncology, Capital Medical University School of Stomatology, Beijing Stomatological Hosptial, Captial Medical University, Beijing, 100050, China
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology and Beijing Laboratory of Oral Health, Capital Medical University, Beijing 100050, China
| | - Yang Zi
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology and Beijing Laboratory of Oral Health, Capital Medical University, Beijing 100050, China
| | - Du Conglin
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology and Beijing Laboratory of Oral Health, Capital Medical University, Beijing 100050, China
| | - Zhang Chunmei
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology and Beijing Laboratory of Oral Health, Capital Medical University, Beijing 100050, China
| | - Hu Liang
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology and Beijing Laboratory of Oral Health, Capital Medical University, Beijing 100050, China
- Department of Oral and Maxillofacial Surgery, Capital Medical University School of Stomatology, Beijing, 100050, China
- Corresponding author. Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology and Beijing Laboratory of Oral Health, Capital Medical University, Beijing, 100050, China.
| | - Wang Songlin
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology and Beijing Laboratory of Oral Health, Capital Medical University, Beijing 100050, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, 100069, China
- Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medicine, Beijing, 100069, China
- Laboratory for Oral and General Health Integration and Translation, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100069, China
- Corresponding author. Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology and Beijing Laboratory of Oral Health, Capital Medical University, Beijing, 100050, China.
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15
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Li H, Wang G, Hu M, Dai R, Li C, Cao Y. Specific inhibitor of Smad3 (SIS3) alleviated submandibular gland fibrosis and dysfunction after dominant duct ligation in mice. J Dent Sci 2023; 18:865-871. [PMID: 37021213 PMCID: PMC10068496 DOI: 10.1016/j.jds.2023.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/03/2023] [Indexed: 02/18/2023] Open
Abstract
Background/purpose Chronic obstructive sialadenitis (COS) is a condition that severely reduced patients' quality of life. This study aimed to analyze the effects of SIS3, a specific inhibitor of small mothers against decapentaplegic 3 (SMAD3), on the submandibular gland (SMG) dysfunction, fibrosis, and inflammation. Materials and methods The dominant duct in the SMG was ligated in mice, followed by intraperitoneal injection of SIS3 (2 mg/kg/day) or Dimethyl sulfoxide (DMSO) saline for 7 days. In the sham group, this duct was surgically identified but not ligated. Saliva flow, histological structure, fibrosis, Transforming growth factor-β1 (TGF-β)/SMAD3 signaling, and inflammatory cytokines, were analyzed. Results SIS3 rescued ligation-induced SMG dysfunction and improved the saliva flow rate compared to DMSO. SIS3 alleviated acinar atrophy and ductal dilation and maintained the morphology of the basal membrane. SIS3 reduces interlobular and intralobular fibrosis and collagen deposition. We observed reduced SMAD3 phosphorylation and TGF-β expression. The SIS3 group showed downregulation of np_5318 and miR-21 and upregulation of miR-29 b compared to the DMSO group. Moreover, SIS3 controlled the inflammatory cytokine release, including interleukin-6 and interleukin-1β. Conclusion SIS3 protected duct-ligated SMGs against fibrosis and dysfunction by inhibiting the TGF-β/SMAD3 signaling and inflammatory cytokine expression. SIS3 may serve as a promising treatment for chronic obstructive sialadenitis.
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16
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Ehnes DD, Alghadeer A, Hanson-Drury S, Zhao YT, Tilmes G, Mathieu J, Ruohola-Baker H. Sci-Seq of Human Fetal Salivary Tissue Introduces Human Transcriptional Paradigms and a Novel Cell Population. FRONTIERS IN DENTAL MEDICINE 2022; 3:887057. [PMID: 36540608 PMCID: PMC9762771 DOI: 10.3389/fdmed.2022.887057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023] Open
Abstract
Multiple pathologies and non-pathological factors can disrupt the function of the non-regenerative human salivary gland including cancer and cancer therapeutics, autoimmune diseases, infections, pharmaceutical side effects, and traumatic injury. Despite the wide range of pathologies, no therapeutic or regenerative approaches exist to address salivary gland loss, likely due to significant gaps in our understanding of salivary gland development. Moreover, identifying the tissue of origin when diagnosing salivary carcinomas requires an understanding of human fetal development. Using computational tools, we identify developmental branchpoints, a novel stem cell-like population, and key signaling pathways in the human developing salivary glands by analyzing our human fetal single-cell sequencing data. Trajectory and transcriptional analysis suggest that the earliest progenitors yield excretory duct and myoepithelial cells and a transitional population that will yield later ductal cell types. Importantly, this single-cell analysis revealed a previously undescribed population of stem cell-like cells that are derived from SD and expresses high levels of genes associated with stem cell-like function. We have observed these rare cells, not in a single niche location but dispersed within the developing duct at later developmental stages. Our studies introduce new human-specific developmental paradigms for the salivary gland and lay the groundwork for the development of translational human therapeutics.
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Affiliation(s)
- Devon Duron Ehnes
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA, United States
- Institute for Stem Cells and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA, United States
| | - Ammar Alghadeer
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA, United States
- Institute for Stem Cells and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA, United States
- Department of Biomedical Dental Sciences, College of Dentistry, Imam Abdulrahman bin Faisal University, Dammam, Saudi Arabia
| | - Sesha Hanson-Drury
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA, United States
- Institute for Stem Cells and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA, United States
- Department of Oral Health Sciences, School of Dentistry, University of Washington, Seattle, WA, United States
| | - Yan Ting Zhao
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA, United States
- Institute for Stem Cells and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA, United States
- Department of Oral Health Sciences, School of Dentistry, University of Washington, Seattle, WA, United States
| | - Gwen Tilmes
- Institute for Stem Cells and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA, United States
| | - Julie Mathieu
- Institute for Stem Cells and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA, United States
- Department of Comparative Medicine, University of Washington, Seattle, WA, United States
| | - Hannele Ruohola-Baker
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA, United States
- Institute for Stem Cells and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA, United States
- Department of Biomedical Dental Sciences, College of Dentistry, Imam Abdulrahman bin Faisal University, Dammam, Saudi Arabia
- Department of Bioengineering, University of Washington, Seattle, WA, United States
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17
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Sjögren's Syndrome-Related Organs Fibrosis: Hypotheses and Realities. J Clin Med 2022; 11:jcm11123551. [PMID: 35743618 PMCID: PMC9224630 DOI: 10.3390/jcm11123551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/16/2022] [Accepted: 06/17/2022] [Indexed: 12/11/2022] Open
Abstract
Sjögren's syndrome (SS) is a systemic chronic autoimmune disorder characterized by lymphoplasmacytic infiltration of salivary glands (SGs) and lacrimal glands, causing glandular damage. The disease shows a combination of dryness symptoms found in the oral cavity, pharynx, larynx, and vagina, representing a systemic disease. Recent advances link chronic inflammation with SG fibrosis, based on a molecular mechanism pointing to the epithelial to mesenchymal transition (EMT). The continued activation of inflammatory-dependent fibrosis is highly detrimental and a common final pathway of numerous disease states. The important question of whether and how fibrosis contributes to SS pathogenesis is currently intensely debated. Here, we collect the recent findings on EMT-dependent fibrosis in SS SGs and explore clinical evidence of multi-organ fibrosis in SS to highlight potential avenues for therapeutic investigation.
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18
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Luo W, Liang P, Zhao T, Cheng Q, Liu H, He L, Zhang L, Huang B, Zhang Y, He T, Yang D. Reversely immortalized mouse salivary gland cells presented a promising metabolic and fibrotic response upon BMP9/Gdf2 stimulation. Cell Mol Biol Lett 2022; 27:46. [PMID: 35690719 PMCID: PMC9188258 DOI: 10.1186/s11658-022-00333-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 03/19/2022] [Indexed: 11/10/2022] Open
Abstract
The submandibular gland (SMG) and the sublingual gland (SLG) are two of the three major salivary glands in mammals. In mice, they are adjacent to each other and open into the oral cavity, producing saliva to lubricate the mouth and aid in food digestion. Though salivary gland dysfunction accompanied with fibrosis and metabolic disturbance is common in clinic, in-depth mechanistic research is lacking. Currently, research on how to rescue salivary function is challenging, as it must resort to using terminally differentiated acinar cells or precursor acinar cells with unknown differentiation. In this study, we established reversely immortalized mouse primary SMG cells (iSMGCs) and SLG cells (iSLGCs) on the first postnatal day (P0). The iSMGCs and iSLGCs grew well, exhibited many salivary gland characteristics, and retained the metabolism-related genes derived from the original tissue as demonstrated using transcriptome sequencing (RNA-seq) analysis. The Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways of these two cell lines, which overlapped with those of the SMG and SLG, were enriched in cysteine and methionine metabolism. Furthermore, we investigated the role of bone morphogenetic protein 9 (BMP9), also known as growth differentiation factor 2(Gdf2), on metabolic and fibrotic functions in the SMG and SLG. We demonstrated that iSMGCs and iSLGCs presented promising adipogenic and fibrotic responses upon BMP9/Gdf2 stimulation. Thus, our findings indicate that iSMGCs and iSLGCs faithfully reproduce characteristics of SMG and SLG cells and present a promising prospect for use in future study of salivary gland metabolism and fibrosis upon BMP9/Gdf2 stimulation.
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Affiliation(s)
- Wenping Luo
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, 426 Songshi North Road, Yubei District, Chongqing, 401147, China.,Department of Surgery, Laboratory of Craniofacial Biology and Development, Section of Plastic Surgery, The University of Chicago Medical Center, 5841 South Maryland Avenue MC6035, Chicago, IL, 60637, USA
| | - Panpan Liang
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, 426 Songshi North Road, Yubei District, Chongqing, 401147, China.,Stomatological Hospital of Chongqing Medical University, 426 Songshi North Road, Yubei District, Chongqing, 401147, China
| | - Tianyu Zhao
- Stomatological Hospital of Chongqing Medical University, 426 Songshi North Road, Yubei District, Chongqing, 401147, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, 426 Songshi North Road, Yubei District, Chongqing, 401147, China
| | - Qianyu Cheng
- Stomatological Hospital of Chongqing Medical University, 426 Songshi North Road, Yubei District, Chongqing, 401147, China
| | - Huikai Liu
- Stomatological Hospital of Chongqing Medical University, 426 Songshi North Road, Yubei District, Chongqing, 401147, China
| | - Liwen He
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, 426 Songshi North Road, Yubei District, Chongqing, 401147, China.,Department of Surgery, Laboratory of Craniofacial Biology and Development, Section of Plastic Surgery, The University of Chicago Medical Center, 5841 South Maryland Avenue MC6035, Chicago, IL, 60637, USA
| | - Linghuan Zhang
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Bo Huang
- Jiangxi Province Key Laboratory of Laboratory Medicine, Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, No.1 Min De Road, Nanchang, 330006, China
| | - Yuxin Zhang
- Stomatological Hospital of Chongqing Medical University, 426 Songshi North Road, Yubei District, Chongqing, 401147, China
| | - Tongchuan He
- Department of Surgery, Laboratory of Craniofacial Biology and Development, Section of Plastic Surgery, The University of Chicago Medical Center, 5841 South Maryland Avenue MC6035, Chicago, IL, 60637, USA
| | - Deqin Yang
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, 426 Songshi North Road, Yubei District, Chongqing, 401147, China. .,Stomatological Hospital of Chongqing Medical University, 426 Songshi North Road, Yubei District, Chongqing, 401147, China.
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19
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Soltani S, Mansouri K, Parvaneh S, Thakor AS, Pociot F, Yarani R. Diabetes complications and extracellular vesicle therapy. Rev Endocr Metab Disord 2022; 23:357-385. [PMID: 34647239 DOI: 10.1007/s11154-021-09680-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/30/2021] [Indexed: 02/06/2023]
Abstract
Diabetes is a chronic disorder characterized by dysregulated glycemic conditions. Diabetic complications include microvascular and macrovascular abnormalities and account for high morbidity and mortality rates in patients. Current clinical approaches for diabetic complications are limited to symptomatic treatments and tight control of blood sugar levels. Extracellular vesicles (EVs) released by somatic and stem cells have recently emerged as a new class of potent cell-free therapeutic delivery packets with a great potential to treat diabetic complications. EVs contain a mixture of bioactive molecules and can affect underlying pathological processes in favor of tissue healing. In addition, EVs have low immunogenicity and high storage capacity while maintaining nearly the same regenerative and immunomodulatory effects compared to current cell-based therapies. Therefore, EVs have received increasing attention for diabetes-related complications in recent years. In this review, we provide an outlook on diabetic complications and summarizes new knowledge and advances in EV applications. Moreover, we highlight recommendations for future EV-related research.
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Affiliation(s)
- Setareh Soltani
- Clinical Research Development Center, Taleghani and Imam Ali Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Kamran Mansouri
- Medical Biology Research Center, Health Technology Institute, Kermanshah, University of Medical Sciences, Kermanshah, Iran
| | - Shahram Parvaneh
- Regenerative Medicine and Cellular Pharmacology Laboratory (HECRIN), Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
- Research Institute of Translational Biomedicine, Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
| | - Avnesh S Thakor
- Interventional Regenerative Medicine and Imaging Laboratory, Department of Radiology, Stanford University School of Medicine, Palo Alto, CA, 94304, USA
| | - Flemming Pociot
- Translational Type 1 Diabetes Research, Department of Clinical Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Reza Yarani
- Interventional Regenerative Medicine and Imaging Laboratory, Department of Radiology, Stanford University School of Medicine, Palo Alto, CA, 94304, USA.
- Translational Type 1 Diabetes Research, Department of Clinical Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark.
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Moskwa N, Mahmood A, Nelson DA, Altrieth AL, Forni PE, Larsen M. Single-cell RNA sequencing reveals PDGFRα+ stromal cell subpopulations that promote proacinar cell differentiation in embryonic salivary gland organoids. Development 2022; 149:dev200167. [PMID: 35224622 PMCID: PMC8977102 DOI: 10.1242/dev.200167] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 02/18/2022] [Indexed: 12/12/2022]
Abstract
Stromal cells can direct the differentiation of epithelial progenitor cells during organ development. Fibroblast growth factor (FGF) signaling is essential for submandibular salivary gland development. Through stromal fibroblast cells, FGF2 can indirectly regulate proacinar cell differentiation in organoids, but the mechanisms are not understood. We performed single-cell RNA-sequencing and identified multiple stromal cell subsets, including Pdgfra+ stromal subsets expressing both Fgf2 and Fgf10. When combined with epithelial progenitor cells in organoids, magnetic-activated cell-sorted PDGFRα+ cells promoted proacinar cell differentiation similarly to total stroma. Gene expression analysis revealed that FGF2 increased the expression of multiple stromal genes, including Bmp2 and Bmp7. Both BMP2 and BMP7 synergized with FGF2, stimulating proacinar cell differentiation but not branching. However, stromal cells grown without FGF2 did not support proacinar organoid differentiation and instead differentiated into myofibroblasts. In organoids, TGFβ1 treatment stimulated myofibroblast differentiation and inhibited the proacinar cell differentiation of epithelial progenitor cells. Conversely, FGF2 reversed the effects of TGFβ1. We also demonstrated that adult salivary stromal cells were FGF2 responsive and could promote proacinar cell differentiation. These FGF2 signaling pathways may have applications in future regenerative therapies.
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Affiliation(s)
- Nicholas Moskwa
- Department of Biological Sciences, University at Albany, State University of New York, Albany, NY 12222, USA
- Graduate Program in Molecular, Cellular, Developmental and Neural Biology, University at Albany, State University of New York, Albany, NY 12222, USA
| | - Ayma Mahmood
- Department of Biological Sciences, University at Albany, State University of New York, Albany, NY 12222, USA
| | - Deirdre A. Nelson
- Department of Biological Sciences, University at Albany, State University of New York, Albany, NY 12222, USA
| | - Amber L. Altrieth
- Department of Biological Sciences, University at Albany, State University of New York, Albany, NY 12222, USA
- Graduate Program in Molecular, Cellular, Developmental and Neural Biology, University at Albany, State University of New York, Albany, NY 12222, USA
- The RNA Institute, University at Albany, State University of New York, Albany, NY 12222, USA
| | - Paolo E. Forni
- Department of Biological Sciences, University at Albany, State University of New York, Albany, NY 12222, USA
- Graduate Program in Molecular, Cellular, Developmental and Neural Biology, University at Albany, State University of New York, Albany, NY 12222, USA
- The RNA Institute, University at Albany, State University of New York, Albany, NY 12222, USA
| | - Melinda Larsen
- Department of Biological Sciences, University at Albany, State University of New York, Albany, NY 12222, USA
- Graduate Program in Molecular, Cellular, Developmental and Neural Biology, University at Albany, State University of New York, Albany, NY 12222, USA
- The RNA Institute, University at Albany, State University of New York, Albany, NY 12222, USA
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21
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He X, Wang S, Sun H, He H, Shi Y, Wu Y, Wu H, Liu Z, Zhuang J, Li W. Lacrimal Gland Microenvironment Changes After Obstruction of Lacrimal Gland Ducts. Invest Ophthalmol Vis Sci 2022; 63:14. [PMID: 35289845 PMCID: PMC8934564 DOI: 10.1167/iovs.63.3.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Purpose To investigate microenvironment changes of the lacrimal gland after obstruction of lacrimal gland ducts. Methods The ducts of rat exorbital lacrimal gland were ligated by sutures for different durations. After that, the sutures in some animals were released, and they were observed for 21 days to evaluate the recovery of the lacrimal gland. Slit lamp and tear secretion test was performed to evaluate ocular surface and lacrimal gland function. The lacrimal gland and cornea were harvested and processed for hematoxylin and eosin staining, oil red O staining, LipidTOX staining, Masson staining, quantitative real time polymerase chain reaction, and immunofluorescence staining. Results After the lacrimal gland ducts were blocked, tear secretion and the weight of the lacrimal gland were reduced. Incidence of corneal neovascularization increased after seven days. Intraglandular ducts dilated and acini destroyed. Long-term ligation induced fibrosis and lipid accumulation of the lacrimal glands. Inflammatory cell infiltrated and inflammatory factors upregulated. Proliferative and apoptotic cells increased. Structure of myoepithelial cells and basement membrane was destroyed. The p63 expression increased whereas Pax6 expression decreased. After suture release, tear secretion and structure of acini could recover in less than seven days after ligation, with a decrease in inflammatory cell infiltration and fibrosis relief. Apoptotic cells and proliferative cells increased at five days thereafter. The structure of the myoepithelial cells and basement membrane could not recover three days after ligation, and the number of mesenchymal cells increased in ligation after five to 14 days. Conclusions Blockage of the lacrimal gland ducts results in dystrophy of lacrimal gland acini cells, inflammation, and lipid accumulation of the lacrimal gland microenvironment. Long-term duct blockage will cause irreversible lacrimal gland failure.
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Affiliation(s)
- Xin He
- Department of Ophthalmology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.,Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.,Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
| | - Shaopan Wang
- Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.,Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China.,Institute of Artificial Intelligence, Xiamen University, Xiamen, Fujian, China
| | - Huimin Sun
- Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.,Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
| | - Hui He
- Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.,Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
| | - Yalin Shi
- Department of Ophthalmology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Yiming Wu
- Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.,Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
| | - Han Wu
- Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.,Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
| | - Zuguo Liu
- Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.,Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.,Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
| | - Jingyi Zhuang
- Department of Ophthalmology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Wei Li
- Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.,Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.,Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China
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22
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McKendrick JG, Emmerson E. The role of salivary gland macrophages in infection, disease and repair. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2022; 368:1-34. [PMID: 35636925 DOI: 10.1016/bs.ircmb.2022.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Macrophages are mononuclear innate immune cells which have become of increasing interest in the fields of disease and regeneration, as their non-classical functions have been elucidated in addition to their classical inflammatory functions. Macrophages can regulate tissue remodeling, by both mounting and reducing inflammatory responses; and exhibit direct communication with other cells to drive tissue turnover and cell replacement. Furthermore, macrophages have recently become an attractive therapeutic target to drive tissue regeneration. The major salivary glands are glandular tissues that are exposed to pathogens through their close connection with the oral cavity. Moreover, there are a number of diseases that preferentially destroy the salivary glands, causing irreversible injury, highlighting the need for a regenerative strategy. However, characterization of macrophages in the mouse and human salivary glands is sparse and has been mostly determined from studies in infection or autoimmune pathologies. In this review, we describe the current literature around salivary gland macrophages, and speculate about the niches they inhabit and how their role in development, regeneration and cancer may inform future therapeutic advances.
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Affiliation(s)
- John G McKendrick
- The Centre for Regenerative Medicine, Institute for Regeneration and Repair, The University of Edinburgh, Edinburgh, United Kingdom
| | - Elaine Emmerson
- The Centre for Regenerative Medicine, Institute for Regeneration and Repair, The University of Edinburgh, Edinburgh, United Kingdom.
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23
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Giacomini E, Minetto S, Li Piani L, Pagliardini L, Somigliana E, Viganò P. Genetics and Inflammation in Endometriosis: Improving Knowledge for Development of New Pharmacological Strategies. Int J Mol Sci 2021; 22:ijms22169033. [PMID: 34445738 PMCID: PMC8396487 DOI: 10.3390/ijms22169033] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/17/2021] [Accepted: 08/19/2021] [Indexed: 12/12/2022] Open
Abstract
According to a rich body of literature, immune cell dysfunctions, both locally and systemically, and an inflammatory environment characterize all forms of endometriosis. Alterations in transcripts and proteins involved in the recruitment of immune cells, in the interaction between cytokines and their receptors, cellular adhesion and apoptosis have been demonstrated in endometriotic lesions. The objective of this narrative review is to provide an overview of the components and mechanisms at the intersection between inflammation and genetics that may constitute vanguard therapeutic approaches in endometriosis. The GWAS technology and pathway-based analysis highlighted the role of the MAPK and the WNT/β-catenin cascades in the pathogenesis of endometriosis. These signaling pathways have been suggested to interfere with the disease establishment via several mechanisms, including apoptosis, migration and angiogenesis. Extracellular vesicle-associated molecules may be not only interesting to explain some aspects of endometriosis progression, but they may also serve as therapeutic regimens per se. Immune/inflammatory dysfunctions have always represented attractive therapeutic targets in endometriosis. These would be even more interesting if genetic evidence supported the involvement of functional pathways at the basis of these alterations. Targeting these dysfunctions through next-generation inhibitors can constitute a therapeutic alternative for endometriosis.
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Affiliation(s)
- Elisa Giacomini
- Reproductive Sciences Laboratory, Obstetrics and Gynecology Unit, IRCCS Ospedale San Raffaele, 20132 Milan, Italy; (E.G.); (L.P.)
| | - Sabrina Minetto
- Obstetrics and Gynecology Unit, IRCCS Ospedale San Raffaele, 20132 Milan, Italy;
| | - Letizia Li Piani
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy; (L.L.P.); (E.S.)
| | - Luca Pagliardini
- Reproductive Sciences Laboratory, Obstetrics and Gynecology Unit, IRCCS Ospedale San Raffaele, 20132 Milan, Italy; (E.G.); (L.P.)
| | - Edgardo Somigliana
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy; (L.L.P.); (E.S.)
| | - Paola Viganò
- Infertility Unit, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Correspondence: ; Tel.: +39-02-5503-4302
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24
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Piraino LR, Benoit DSW, DeLouise LA. Salivary Gland Tissue Engineering Approaches: State of the Art and Future Directions. Cells 2021; 10:1723. [PMID: 34359893 PMCID: PMC8303463 DOI: 10.3390/cells10071723] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/02/2021] [Accepted: 07/05/2021] [Indexed: 01/08/2023] Open
Abstract
Salivary gland regeneration is important for developing treatments for radiation-induced xerostomia, Sjögren's syndrome, and other conditions that cause dry mouth. Culture conditions adopted from tissue engineering strategies have been used to recapitulate gland structure and function to study and regenerate the salivary glands. The purpose of this review is to highlight current trends in the field, with an emphasis on soluble factors that have been shown to improve secretory function in vitro. A PubMed search was conducted to identify articles published in the last 10 years and articles were evaluated to identify the most promising approaches and areas for further research. Results showed increasing use of extracellular matrix mimetics, such as Matrigel®, collagen, and a variety of functionalized polymers. Soluble factors that provide supportive cues, including fibroblast growth factors (FGFs) and neurotrophic factors, as well as chemical inhibitors of Rho-associated kinase (ROCK), epidermal growth factor receptor (EGFR), and transforming growth factor β receptor (TGFβR) have shown increases in important markers including aquaporin 5 (Aqp5); muscle, intestine, and stomach expression 1 (Mist1); and keratin (K5). However, recapitulation of tissue function at in vivo levels is still elusive. A focus on identification of soluble factors, cells, and/or matrix cues tested in combination may further increase the maintenance of salivary gland secretory function in vitro. These approaches may also be amenable for translation in vivo to support successful regeneration of dysfunctional glands.
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Affiliation(s)
- Lindsay R. Piraino
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627, USA; (L.R.P.); (D.S.W.B.)
| | - Danielle S. W. Benoit
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627, USA; (L.R.P.); (D.S.W.B.)
- Center for Oral Biology, University of Rochester Medical Center, Rochester, NY 14642, USA
- Department of Biomedical Genetics, University of Rochester Medical Center, Rochester, NY 14642, USA
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY 14642, USA
- Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY 14642, USA
- Materials Science Program, University of Rochester, Rochester, NY 14627, USA
- Department of Chemical Engineering, University of Rochester, Rochester, NY 14627, USA
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Lisa A. DeLouise
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627, USA; (L.R.P.); (D.S.W.B.)
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY 14642, USA
- Materials Science Program, University of Rochester, Rochester, NY 14627, USA
- Department of Dermatology, University of Rochester Medical Center, Rochester, NY 14642, USA
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25
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Effects of TGF-β1 Receptor Inhibitor GW788388 on the Epithelial to Mesenchymal Transition of Peritoneal Mesothelial Cells. Int J Mol Sci 2021; 22:ijms22094739. [PMID: 33947038 PMCID: PMC8124410 DOI: 10.3390/ijms22094739] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/17/2021] [Accepted: 04/27/2021] [Indexed: 12/27/2022] Open
Abstract
We investigated the effectiveness of the transforming growth factor beta-1 (TGF-β) receptor inhibitor GW788388 on the epithelial to mesenchymal transition (EMT) using human peritoneal mesothelial cells (HPMCs) and examined the effectiveness of GW788388 on the peritoneal membrane using a peritoneal fibrosis mouse model. HPMCs were treated with TGF-β with or without GW788388. Animal experiments were conducted on male C57/BL6 mice. Peritoneal fibrosis was induced by intraperitoneal injection of chlorhexidine gluconate. GW788388 was administered by once-daily oral gavage. The morphological change, cell migration, and invasion resulted from TGF-β treatment, but these changes were attenuated by cotreatment with GW788388. TGF-β-treated HPMCs decreased the level of the epithelial cell marker and increased the levels of the mesenchymal cell markers. Cotreatment with GW788388 reversed these changes. Phosphorylated Smad2 and Smad3 protein levels were stimulated with TGF-β and the change was attenuated by cotreatment with GW788388. For the peritoneal fibrosis mice, thickness and collagen deposition of parietal peritoneum was increased, but this change was attenuated by cotreatment with GW788388. GW788388, an orally available potent TGF-β receptor type 1 inhibitor, effectively attenuated TGF-β-induced EMT in HPMCs. Cotreatment with GW788388 improved peritoneal thickness and fibrosis, and recovered peritoneal membrane function in a peritoneal fibrosis mouse model.
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26
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Elsherbini AM, Maysarah NM, El-Sherbiny M, Al-Gayyar MM, Elsherbiny NM. Glycyrrhizic acid ameliorates sodium nitrite-induced lung and salivary gland toxicity: Impact on oxidative stress, inflammation and fibrosis. Hum Exp Toxicol 2021; 40:707-721. [PMID: 33030083 DOI: 10.1177/0960327120964555] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Despite wide application of sodium nitrite (SN) as food additive, it exhibits considerable side effects on various body organs at high dose or chronic exposure. The aim of this study was to test whether Glycyrrhizic acid (GA) could ameliorate SN-induced toxicity in lung and submandibular salivary gland (SMG). A sample size of 30 adult male albino rats was randomly allocated into 3 groups. Group 1 served as control group. Rats were treated orally with 80 mg/kg of SN in group 2 or SN preceded by (15 mg/kg) GA in group 3. Lung & SMG tissues were used for oxidative stress assessment, examination of histopathological changes, fibrosis (MTC, TGF-β and α-SMA) and inflammation (TNF-α, IL-1β and CD-68). Concurrent administration of GA ameliorated pulmonary and salivary SN-induced toxicity via restoring the antioxidant defense mechanisms with reduction of MDA levels. GA reduced the key regulators of fibrosis TGF-β and α-SMA and collagen deposition. In addition to reduction of inflammatory cytokine (TNF-α, IL-1β) and macrophages recruitments, GA amended both pulmonary and salivary morphological changes. The present study proposed GA as a promising natural herb with antioxidant, anti-inflammatory and antifibrotic effects against pulmonary and salivary SN-induced toxicity.
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Affiliation(s)
- Amira M Elsherbini
- Oral Biology, Faculty of Dentistry, 68779Mansoura University, Mansoura, Egypt
| | - Nadia M Maysarah
- Department of Pharmacology and Toxicology, College of Pharmacy, 89660Qassim University, Buraydah, Saudi Arabia
| | - Mohamed El-Sherbiny
- Anatomy Department, Faculty of Medicine, 68779Mansoura University, Mansoura, Egypt
- Anatomy Department, College of Medicine, Almaarefa University, Riyadh, Saudi Arabia
| | - Mohammed Mh Al-Gayyar
- Department of Biochemistry, Faculty of Pharmacy, 68779Mansoura University, Mansoura, Egypt
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
| | - Nehal M Elsherbiny
- Department of Biochemistry, Faculty of Pharmacy, 68779Mansoura University, Mansoura, Egypt
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
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27
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Sisto M, Ribatti D, Lisi S. Organ Fibrosis and Autoimmunity: The Role of Inflammation in TGFβ-Dependent EMT. Biomolecules 2021; 11:biom11020310. [PMID: 33670735 PMCID: PMC7922523 DOI: 10.3390/biom11020310] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/09/2021] [Accepted: 02/16/2021] [Indexed: 02/07/2023] Open
Abstract
Recent advances in our understanding of the molecular pathways that control the link of inflammation with organ fibrosis and autoimmune diseases point to the epithelial to mesenchymal transition (EMT) as the common association in the progression of these diseases characterized by an intense inflammatory response. EMT, a process in which epithelial cells are gradually transformed to mesenchymal cells, is a major contributor to the pathogenesis of fibrosis. Importantly, the chronic inflammatory microenvironment has emerged as a decisive factor in the induction of pathological EMT. Transforming growth factor-β (TGF-β), a multifunctional cytokine, plays a crucial role in the induction of fibrosis, often associated with chronic phases of inflammatory diseases, contributing to marked fibrotic changes that severely impair normal tissue architecture and function. The understanding of molecular mechanisms underlying EMT-dependent fibrosis has both a basic and a translational relevance, since it may be useful to design therapies aimed at counteracting organ deterioration and failure. To this end, we reviewed the recent literature to better elucidate the molecular response to inflammatory/fibrogenic signals in autoimmune diseases in order to further the specific regulation of EMT-dependent fibrosis in more targeted therapies.
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28
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Radiation-Induced Salivary Gland Dysfunction: Mechanisms, Therapeutics and Future Directions. J Clin Med 2020; 9:jcm9124095. [PMID: 33353023 PMCID: PMC7767137 DOI: 10.3390/jcm9124095] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/17/2020] [Accepted: 12/17/2020] [Indexed: 12/14/2022] Open
Abstract
Salivary glands sustain collateral damage following radiotherapy (RT) to treat cancers of the head and neck, leading to complications, including mucositis, xerostomia and hyposalivation. Despite salivary gland-sparing techniques and modified dosing strategies, long-term hypofunction remains a significant problem. Current therapeutic interventions provide temporary symptom relief, but do not address irreversible glandular damage. In this review, we summarize the current understanding of mechanisms involved in RT-induced hyposalivation and provide a framework for future mechanistic studies. One glaring gap in published studies investigating RT-induced mechanisms of salivary gland dysfunction concerns the effect of irradiation on adjacent non-irradiated tissue via paracrine, autocrine and direct cell-cell interactions, coined the bystander effect in other models of RT-induced damage. We hypothesize that purinergic receptor signaling involving P2 nucleotide receptors may play a key role in mediating the bystander effect. We also discuss promising new therapeutic approaches to prevent salivary gland damage due to RT.
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29
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TGF-β Pathway in Salivary Gland Fibrosis. Int J Mol Sci 2020; 21:ijms21239138. [PMID: 33266300 PMCID: PMC7730716 DOI: 10.3390/ijms21239138] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/26/2020] [Accepted: 11/27/2020] [Indexed: 12/14/2022] Open
Abstract
Fibrosis is presented in various physiologic and pathologic conditions of the salivary gland. Transforming growth factor beta (TGF-β) pathway has a pivotal role in the pathogenesis of fibrosis in several organs, including the salivary glands. Among the TGF-β superfamily members, TGF-β1 and 2 are pro-fibrotic ligands, whereas TGF-β3 and some bone morphogenetic proteins (BMPs) are anti-fibrotic ligands. TGF-β1 is thought to be associated with the pro-fibrotic pathogenesis of sialadenitis, post-radiation salivary gland dysfunction, and Sjögren’s syndrome. Potential therapeutic strategies that target multiple levels in the TGF-β pathway are under preclinical and clinical research for fibrosis. Despite the anti-fibrotic effect of BMPs, their in vivo delivery poses a challenge in terms of adequate clinical efficacy. In this article, we will review the relevance of TGF-β signaling in salivary gland fibrosis and advances of potential therapeutic options in the field.
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30
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Experimental Animal Model Systems for Understanding Salivary Secretory Disorders. Int J Mol Sci 2020; 21:ijms21228423. [PMID: 33182571 PMCID: PMC7696548 DOI: 10.3390/ijms21228423] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/03/2020] [Accepted: 11/05/2020] [Indexed: 12/12/2022] Open
Abstract
Salivary secretory disorders are life-disrupting pathologic conditions with a high prevalence, especially in the geriatric population. Both patients and clinicians frequently feel helpless and get frustrated by the currently available therapeutic strategies, which consist mainly of palliative managements. Accordingly, to unravel the underlying mechanisms and to develop effective and curative strategies, several animal models have been developed and introduced. Experimental findings from these models have contributed to answer biological and biomedical questions. This review aims to provide various methodological considerations used for the examination of pathological fundamentals in salivary disorders using animal models and to summarize the obtained findings. The information provided in this review could provide plausible solutions for overcoming salivary disorders and also suggest purpose-specific experimental animal systems.
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31
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AbuBakr N, Haggag T, Sabry D, Salem ZA. Functional and histological evaluation of bone marrow stem cell-derived exosomes therapy on the submandibular salivary gland of diabetic Albino rats through TGFβ/ Smad3 signaling pathway. Heliyon 2020; 6:e03789. [PMID: 32382678 PMCID: PMC7203080 DOI: 10.1016/j.heliyon.2020.e03789] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 03/11/2019] [Accepted: 04/14/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND To prevail over diabetes mellitus and its numerous complications, researchers are seeking new therapies. Exosomes are natural cargo of functional proteins and can be used as a therapeutic delivery of these molecules. OBJECTIVE The aim of this study was to evaluate the effect of exosomes derived from bone marrow mesenchymal stem cells (BM-MSCs) as a therapeutic intervention in salivary gland diabetic complications. METHODS Ten adult healthy male Albino rats, weighing about 150-200 g were grouped into 2 groups. Diabetic group I: consisted of 5 streptozotocin (STZ)-induced diabetic rats. Exosomes treated group II: consisted of 5 STZ-induced diabetic rats, each animal received a single injection of exosomes (100 μg/kg/dose suspended in 0.2 ml PBS) through the tail vein. All animals were sacrificed after 5 weeks from the beginning of the experiment. Submandibular salivary gland samples were excised and processed for histological, ultrastructural examination and PCR for TGFβ, Smad2 and Smad3. Blood glucose level was monitored weekly, salivary IgA and serum amylase were evaluated before and after diabetes induction and at the end of the experiment. RESULTS Histological and ultrastructural results of the exosomes treated group were promising regarding the glandular and ductal elements with less fibrosis observed. Results of PCR supported the role of exosomes to inhibit the diabetic sequalae in salivary gland and its complications through inhibiting TGFβ and its related pathway via Smad2 and Smad3. Blood glucose levels were reduced. In addition, salivary glands' function was improved as evidenced by reduction in serum amylase and salivary IgA. CONCLUSION BM-MSC-derived exosomes could be a novel therapeutic strategy for diabetic complications involving salivary glands.
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Affiliation(s)
- Nermeen AbuBakr
- Oral Biology Department, Faculty of Dentistry, Cairo University, Cairo, Egypt
| | - Tahany Haggag
- Oral Biology Department, Faculty of Dentistry, Cairo University, Cairo, Egypt
| | - Dina Sabry
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Zeinab A. Salem
- Oral Biology Department, Faculty of Dentistry, Cairo University, Cairo, Egypt
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Khalafalla MG, Woods LT, Jasmer KJ, Forti KM, Camden JM, Jensen JL, Limesand KH, Galtung HK, Weisman GA. P2 Receptors as Therapeutic Targets in the Salivary Gland: From Physiology to Dysfunction. Front Pharmacol 2020; 11:222. [PMID: 32231563 PMCID: PMC7082426 DOI: 10.3389/fphar.2020.00222] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 02/18/2020] [Indexed: 12/12/2022] Open
Abstract
Although often overlooked in our daily lives, saliva performs a host of necessary physiological functions, including lubricating and protecting the oral cavity, facilitating taste sensation and digestion and maintaining tooth enamel. Therefore, salivary gland dysfunction and hyposalivation, often resulting from pathogenesis of the autoimmune disease Sjögren's syndrome or from radiotherapy of the head and neck region during cancer treatment, severely reduce the quality of life of afflicted patients and can lead to dental caries, periodontitis, digestive disorders, loss of taste and difficulty speaking. Since their initial discovery in the 1970s, P2 purinergic receptors for extracellular nucleotides, including ATP-gated ion channel P2X and G protein-coupled P2Y receptors, have been shown to mediate physiological processes in numerous tissues, including the salivary glands where P2 receptors represent a link between canonical and non-canonical saliva secretion. Additionally, extracellular nucleotides released during periods of cellular stress and inflammation act as a tissue alarmin to coordinate immunological and tissue repair responses through P2 receptor activation. Accordingly, P2 receptors have gained widespread clinical interest with agonists and antagonists either currently undergoing clinical trials or already approved for human use. Here, we review the contributions of P2 receptors to salivary gland function and describe their role in salivary gland dysfunction. We further consider their potential as therapeutic targets to promote physiological saliva flow, prevent salivary gland inflammation and enhance tissue regeneration.
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Affiliation(s)
- Mahmoud G. Khalafalla
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Lucas T. Woods
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
| | - Kimberly J. Jasmer
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
| | - Kevin Muñoz Forti
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
| | - Jean M. Camden
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
| | - Janicke L. Jensen
- Institute of Clinical Dentistry, Section of Oral Surgery and Oral Medicine, University of Oslo, Oslo, Norway
| | - Kirsten H. Limesand
- Department of Nutritional Sciences, University of Arizona, Tucson, AZ, United States
| | - Hilde K. Galtung
- Institute of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo, Norway
| | - Gary A. Weisman
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
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Dietrich J, Ott L, Roth M, Witt J, Geerling G, Mertsch S, Schrader S. MSC Transplantation Improves Lacrimal Gland Regeneration after Surgically Induced Dry Eye Disease in Mice. Sci Rep 2019; 9:18299. [PMID: 31797895 PMCID: PMC6892942 DOI: 10.1038/s41598-019-54840-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 11/19/2019] [Indexed: 12/13/2022] Open
Abstract
Dry eye disease (DED) is a multifactorial disease characterized by a disrupted tear film homeostasis and inflammation leading to visual impairments and pain in patients. Aqueous-deficient dry eye (ADDE) causes the most severe progressions and depends mainly on the loss of functional lacrimal gland (LG) tissue. Despite a high prevalence, therapies remain palliative. Therefore, it is of great interest to develop new approaches to curatively treat ADDE. Mesenchymal stem/stromal cells (MSC) have been shown to induce tissue regeneration and cease inflammation. Moreover, an increasing amount of MSC was found in the regenerating LG of mice. Therefore, this study investigated the therapeutic effect of MSC transplantation on damaged LGs using duct ligation induced ADDE in mice. Due to the transplantation of sex-mismatched and eGFP-expressing MSC, MSC could be identified and detected until day 21. MSC transplantation significantly improved LG regeneration, as the amount of vital acinar structures was significantly increased above the intrinsic regeneration capacity of control. Additionally, MSC transplantation modulated the immune reaction as macrophage infiltration was delayed and TNFα expression decreased, accompanied by an increased IL-6 expression. Thus, the application of MSC appears to be a promising therapeutic approach to induce LG regeneration in patients suffering from severe DED/ADDE.
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Affiliation(s)
- Jana Dietrich
- Laboratory of Experimental Ophthalmology, Department of Ophthalmology, Pius-Hospital, Carl-von-Ossietzky University, 26121, Oldenburg, Germany.
| | - Lolita Ott
- Laboratory of Experimental Ophthalmology, Department of Ophthalmology, University Hospital Duesseldorf, 40225, Duesseldorf, Germany
| | - Mathias Roth
- Laboratory of Experimental Ophthalmology, Department of Ophthalmology, University Hospital Duesseldorf, 40225, Duesseldorf, Germany
| | - Joana Witt
- Laboratory of Experimental Ophthalmology, Department of Ophthalmology, University Hospital Duesseldorf, 40225, Duesseldorf, Germany
| | - Gerd Geerling
- Laboratory of Experimental Ophthalmology, Department of Ophthalmology, University Hospital Duesseldorf, 40225, Duesseldorf, Germany
| | - Sonja Mertsch
- Laboratory of Experimental Ophthalmology, Department of Ophthalmology, Pius-Hospital, Carl-von-Ossietzky University, 26121, Oldenburg, Germany
| | - Stefan Schrader
- Laboratory of Experimental Ophthalmology, Department of Ophthalmology, Pius-Hospital, Carl-von-Ossietzky University, 26121, Oldenburg, Germany
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Sisto M, Lorusso L, Ingravallo G, Tamma R, Ribatti D, Lisi S. The TGF- β1 Signaling Pathway as an Attractive Target in the Fibrosis Pathogenesis of Sjögren's Syndrome. Mediators Inflamm 2018; 2018:1965935. [PMID: 30598637 PMCID: PMC6287147 DOI: 10.1155/2018/1965935] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 09/20/2018] [Accepted: 09/25/2018] [Indexed: 01/14/2023] Open
Abstract
Transforming growth factor β1 (TGF-β1) plays a crucial role in the induction of fibrosis, often associated with chronic phases of inflammatory diseases contributing to marked fibrotic changes that compromise normal organ function. The TGF-β1 signal exerts its biological effects via the TGF-β/SMAD/Snail signaling pathway, playing an important pathogenic role in several fibrotic diseases. It has as yet been poorly investigated in the chronic autoimmune disease Sjögren's syndrome (SS). Here, we firstly tested, by immunohistochemistry, whether the TGF-β1/SMAD/Snail signaling pathway is triggered in human pSS salivary glands (SGs). Next, healthy salivary gland epithelial cell (SGEC) cultures derived from healthy donors were exposed to TGF-β1 treatment, and the relative gene and protein levels of SMAD2/3/4, Snail, E-cadherin, vimentin, and collagen type I were compared by semiquantitative RT-PCR, quantitative real-time PCR, and Western blot analysis. We observed, both at gene and protein levels, higher expression of SMAD2, 3, and 4 and Snail in the SGEC exposed by TGF-β1 compared to untreated healthy SGEC. Additionally, in TGF-β1-treated samples, we found a significant reduction in the epithelial phenotype marker E-cadherin and an increase in the mesenchymal phenotype markers vimentin and collagen type I compared to those in untreated SGEC, indicating that TGF-β1 induces the EMT via the TGF-β1/SMAD/Snail signaling pathway. Therefore, by using the specific TGF-β receptor 1 inhibitor SB-431542 in healthy SGEC treated with TGF-β1, we showed a significant reduction of the fibrosis markers vimentin and collagen type I while the epithelial marker E-cadherin returns to levels similar to untreated healthy SGEC. These data demonstrate that TGF-β1 is an important key factor in the transition phase from SG chronic inflammation to fibrotic disease. Characteristic changes in the morphology and function of TGF-β1-treated healthy SGEC further confirm that TGF-β1 plays a significant role in EMT-dependent fibrosis.
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Affiliation(s)
- Margherita Sisto
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs (SMBNOS), Section of Human Anatomy and Histology, University of Bari “Aldo Moro”, Bari, Italy
| | - Loredana Lorusso
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs (SMBNOS), Section of Human Anatomy and Histology, University of Bari “Aldo Moro”, Bari, Italy
| | - Giuseppe Ingravallo
- Department of Emergency and Organ Transplantation (DETO), Pathology Section, University of Bari “Aldo Moro”, Bari, Italy
| | - Roberto Tamma
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs (SMBNOS), Section of Human Anatomy and Histology, University of Bari “Aldo Moro”, Bari, Italy
| | - Domenico Ribatti
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs (SMBNOS), Section of Human Anatomy and Histology, University of Bari “Aldo Moro”, Bari, Italy
| | - Sabrina Lisi
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs (SMBNOS), Section of Human Anatomy and Histology, University of Bari “Aldo Moro”, Bari, Italy
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Li W, Wei L, Wang F, Peng S, Cheng Y, Li B. An experimental chronic obstructive sialadenitis model by partial ligation of the submandibular duct characterised by sialography, histology, and transmission electron microscopy. J Oral Rehabil 2018; 45:983-989. [PMID: 30125980 DOI: 10.1111/joor.12711] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 08/06/2018] [Accepted: 08/15/2018] [Indexed: 01/05/2023]
Abstract
Extensive investigation into the mechanism of chronic obstructive sialadenitis (COS) calls for a reliable model that mimics the onset and progression of the disease. Duct obstruction is closely correlated with COS, and partial duct obstruction is usually observed in COS. Partial ligation of ducts or vessels is a valid treatment to mimic pathological processes in certain animal studies. In this study, we developed a novel animal model of COS by incomplete ligation of Wharton's duct and clarified the corresponding morphological alterations in the submandibular gland. Partial ligation of Wharton's duct in Japanese white rabbits resulted in a gradually progressive COS model as demonstrated by sialographic, gross, microscopic, and ultrastructural changes in acinar and ductal degenerations over 8 weeks. The model is a feasible option for investigating the pathogenesis of COS and evaluating the efficacy and safety of novel treatments of COS.
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Affiliation(s)
- Wei Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China.,Department of Oral Radiology of School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Lili Wei
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China.,Department of Oral Radiology of School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Fang Wang
- Department of Oral Radiology of School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Shangwen Peng
- Department of Oral Radiology of School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Yong Cheng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China.,Department of Oral Radiology of School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Bo Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China.,Department of Oral Radiology of School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
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36
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Shan Z, Wei Z, Shaikh ZA. Suppression of ferroportin expression by cadmium stimulates proliferation, EMT, and migration in triple-negative breast cancer cells. Toxicol Appl Pharmacol 2018; 356:36-43. [PMID: 30030096 DOI: 10.1016/j.taap.2018.07.017] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 06/29/2018] [Accepted: 07/16/2018] [Indexed: 01/17/2023]
Abstract
Cadmium (Cd) has been linked to a variety of cancers, including breast cancer; however, the molecular mechanism of its carcinogenic activity is not fully understood. To this end, the present study investigated the roles of ferroportin (FPN), a prognostic marker of breast cancer, in Cd-induced stimulation of cell proliferation and cell migration. Triple-negative MDA-MB-231 cells were treated with 1-3 μM Cd. The cells exhibited significant reduction in FPN expression and concomitant increase in iron concentration. Cells treated with Cd for 8 weeks displayed elevated proliferative and migratory activities which were inversely related with FPN expression. Reduced FPN expression also resulted in EMT as indicated by an increase in the expression of E-cadherin, and a decrease in the expression of N-cadherin, Twist and Slug. Further investigation revealed that Cd suppressed FPN expression at least partially by activating TGF-β, a known regulator of FPN expression. Taken together, these results indicate that Cd-induced stimulation of MDA-MB-231 cell proliferation, EMT, and migration is brought about by suppression of FPN expression and associated disruption of iron homeostasis.
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Affiliation(s)
- Zhongguo Shan
- Center for Molecular Toxicology, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Zhengxi Wei
- Center for Molecular Toxicology, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Zahir A Shaikh
- Center for Molecular Toxicology, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA.
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37
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Maldonado E, López Y, Herrera M, Martínez-Sanz E, Martínez-Álvarez C, Pérez-Miguelsanz J. Craniofacial structure alterations of foetuses from folic acid deficient pregnant mice. Ann Anat 2018; 218:59-68. [DOI: 10.1016/j.aanat.2018.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 01/17/2018] [Accepted: 02/06/2018] [Indexed: 12/18/2022]
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38
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The role of the epithelial-to-mesenchymal transition (EMT) in diseases of the salivary glands. Histochem Cell Biol 2018; 150:133-147. [DOI: 10.1007/s00418-018-1680-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2018] [Indexed: 02/06/2023]
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Woods LT, Camden JM, Khalafalla MG, Petris MJ, Erb L, Ambrus JL, Weisman GA. P2Y 2 R deletion ameliorates sialadenitis in IL-14α-transgenic mice. Oral Dis 2018; 24:761-771. [PMID: 29297959 DOI: 10.1111/odi.12823] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 12/04/2017] [Accepted: 12/22/2017] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Interleukin-14α-transgenic (IL-14αTG) mice develop an autoimmune exocrinopathy with characteristics similar to Sjögren's syndrome, including sialadenitis and hyposalivation. The P2Y2 receptor (P2Y2 R) for extracellular ATP and UTP is upregulated during salivary gland inflammation (i.e., sialadenitis) where it regulates numerous inflammatory responses. This study investigated the role of P2Y2 Rs in autoimmune sialadenitis in the IL-14αTG mouse model of Sjögren's syndrome. MATERIALS AND METHODS IL-14αTG mice were bred with P2Y2 R-/- mice to generate IL-14αTG × P2Y2 R-/- mice. P2Y2 R expression, lymphocytic focus scores, B- and T-cell accumulation, and lymphotoxin-α expression were evaluated in the submandibular glands (SMG) along with carbachol-stimulated saliva secretion in IL-14αTG, IL-14αTG × P2Y2 R-/- , and C57BL/6 control mice at 9 and 12 months of age. RESULTS Genetic ablation of P2Y2 Rs in IL-14αTG mice significantly reduced B and T lymphocyte infiltration of SMGs. However, reduced sialadenitis did not restore saliva secretion in IL-14αTG × P2Y2 R-/- mice. Decreased sialadenitis in IL-14αTG × P2Y2 R-/- mice correlated with decreased lymphotoxin-α levels, a critical proinflammatory cytokine associated with autoimmune pathology in IL-14αTG mice. CONCLUSIONS The results of this study suggest that P2Y2 Rs contribute to the development of salivary gland inflammation in IL-14αTG mice and may also contribute to autoimmune sialadenitis in humans.
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Affiliation(s)
- L T Woods
- Department of Biochemistry, University of Missouri, Columbia, MO, USA.,Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
| | - J M Camden
- Department of Biochemistry, University of Missouri, Columbia, MO, USA.,Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
| | - M G Khalafalla
- Department of Biochemistry, University of Missouri, Columbia, MO, USA.,Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
| | - M J Petris
- Department of Biochemistry, University of Missouri, Columbia, MO, USA.,Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, USA.,Department of Nutritional Sciences and Exercise Physiology, University of Missouri, Columbia, MO, USA
| | - L Erb
- Department of Biochemistry, University of Missouri, Columbia, MO, USA.,Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
| | - J L Ambrus
- Department of Medicine, Division of Allergy, Immunology and Rheumatology, SUNY at Buffalo School of Medicine and Biomedical Sciences, Buffalo, NY, USA
| | - G A Weisman
- Department of Biochemistry, University of Missouri, Columbia, MO, USA.,Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, USA
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40
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Jones H, Hargrove L, Kennedy L, Meng F, Graf-Eaton A, Owens J, Alpini G, Johnson C, Bernuzzi F, Demieville J, DeMorrow S, Invernizzi P, Francis H. Inhibition of mast cell-secreted histamine decreases biliary proliferation and fibrosis in primary sclerosing cholangitis Mdr2(-/-) mice. Hepatology 2016; 64:1202-1216. [PMID: 27351144 PMCID: PMC5033697 DOI: 10.1002/hep.28704] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 06/11/2016] [Accepted: 06/23/2016] [Indexed: 01/03/2023]
Abstract
UNLABELLED Hepatic fibrosis is marked by activation of hepatic stellate cells (HSCs). Cholestatic injury precedes liver fibrosis, and cholangiocytes interact with HSCs promoting fibrosis. Mast cells (MCs) infiltrate following liver injury and release histamine, increasing biliary proliferation. We evaluated if inhibition of MC-derived histamine decreases biliary proliferation and fibrosis. Wild-type and multidrug resistance 2 knockout mice (9-11 weeks) were treated with cromolyn sodium for 1 week to block MC-derived histamine. Biliary mass and proliferation were evaluated by immunohistochemistry for cytokeratin 19 and Ki-67. Bile flow, bicarbonate excretion, and total bile acids were measured in all mice. Fibrosis was evaluated by sirius red/fast green staining and by quantitative polymerase chain reaction for alpha-smooth muscle actin, fibronectin, collagen type 1a, and transforming growth factor-beta 1. HSC activation was evaluated by quantitative polymerase chain reaction in total liver and immunofluorescent staining in tissues for synaptophysin 9. Histamine serum secretion was measured by enzymatic immunoassay. Mouse liver and human liver samples from control or primary sclerosing cholangitis patients were evaluated for MC markers by quantitative polymerase chain reaction and immunohistochemistry. In vitro, cultured MCs were transfected with histidine decarboxylase short hairpin RNA to decrease histamine secretion and subsequently cocultured with cholangiocytes or HSCs prior to measuring fibrosis markers, proliferation, and transforming growth factor-beta 1 secretion. Treatment with cromolyn sodium decreased biliary proliferation, fibrosis, histamine secretion, and bile flow in multidrug resistance 2 knockout mice. Primary sclerosing cholangitis mice and patients have increased MCs. Knockdown of MC histidine decarboxylase decreased cholangiocyte and HSC proliferation/activation. CONCLUSION MCs are recruited to proliferating cholangiocytes and promote fibrosis. Inhibition of MC-derived histamine decreases fibrosis, and regulation of MC mediators may be therapeutic for primary sclerosing cholangitis. (Hepatology 2016;64:1202-1216).
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Affiliation(s)
- Hannah Jones
- Scott & White Digestive Disease Research Center, Baylor Scott & White Health, Rozzano, Milan, Italy
| | - Laura Hargrove
- Scott & White Digestive Disease Research Center, Baylor Scott & White Health, Rozzano, Milan, Italy
| | - Lindsey Kennedy
- Research, Central Texas Veterans Health Care System, Rozzano, Milan, Italy
| | - Fanyin Meng
- Research, Central Texas Veterans Health Care System, Rozzano, Milan, Italy
- Scott & White Digestive Disease Research Center, Baylor Scott & White Health, Rozzano, Milan, Italy
- Medicine, Texas A&M Health Science Center, Rozzano, Milan, Italy
| | - Allyson Graf-Eaton
- Research, Central Texas Veterans Health Care System, Rozzano, Milan, Italy
| | - Jennifer Owens
- Research, Central Texas Veterans Health Care System, Rozzano, Milan, Italy
| | - Gianfranco Alpini
- Research, Central Texas Veterans Health Care System, Rozzano, Milan, Italy
- Medicine, Texas A&M Health Science Center, Rozzano, Milan, Italy
| | | | - Francesca Bernuzzi
- Temple, Texas, USA and Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | | | - Sharon DeMorrow
- Research, Central Texas Veterans Health Care System, Rozzano, Milan, Italy
- Medicine, Texas A&M Health Science Center, Rozzano, Milan, Italy
| | - Pietro Invernizzi
- Temple, Texas, USA and Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Heather Francis
- Research, Central Texas Veterans Health Care System, Rozzano, Milan, Italy
- Scott & White Digestive Disease Research Center, Baylor Scott & White Health, Rozzano, Milan, Italy
- Medicine, Texas A&M Health Science Center, Rozzano, Milan, Italy
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41
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Umazume T, Thomas WM, Campbell S, Aluri H, Thotakura S, Zoukhri D, Makarenkova HP. Lacrimal Gland Inflammation Deregulates Extracellular Matrix Remodeling and Alters Molecular Signature of Epithelial Stem/Progenitor Cells. Invest Ophthalmol Vis Sci 2016; 56:8392-402. [PMID: 26747770 DOI: 10.1167/iovs.15-17477] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
PURPOSE The adult lacrimal gland (LG) is highly regenerative and is able to repair itself even after substantial damage; however, this ability to regenerate is lost with the development of dry eye conditions in chronically inflamed LGs.This study compares changes in the cell adhesion and cell matrix molecules and stem cell transcription factors in the LGs of healthy mice and of two mouse models of Sjögren's syndrome: nonobese diabetic (NOD) and MRL-lpr/lpr (MRL/lpr) mice during the early stage of inflammation. METHODS The LGs from 12- to 13-week-old female MRL/lpr and male NOD mice along with their respective control strains were harvested and divided into three pieces and processed for quantitative (q) RT-PCR and qRT-PCR Arrays, histology, immunohistochemistry, and Western blotting. RESULTS The extracellular matrix (ECM) and adhesion molecules RT2-PCR array combined with protein expression data revealed changes in the expression of integrins, matrix metalloproteinases, and other molecules, which are associated largely with invasion, attachment, and expansion of the lymphocytic cells, whereas changes in the stem cell transcription factors revealed substantial decrease in expression of transcription factors associated with epithelial stem/progenitor cell lineage. CONCLUSIONS We concluded that the expression of several important ECM components is significantly deregulated in the LG of two murine models of Sjögren's syndrome, suggesting an alteration of the epithelial stem/progenitor cell niche. This may result in profound effects on localization, activation, proliferation, and differentiation of the LG stem/progenitor cells and, therefore, LG regeneration.
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Affiliation(s)
- Takeshi Umazume
- Department of Cell and Molecular Biology The Scripps Research Institute, La Jolla, California, United States
| | - William M Thomas
- Department of Cell and Molecular Biology The Scripps Research Institute, La Jolla, California, United States
| | - Sabrina Campbell
- Department of Cell and Molecular Biology The Scripps Research Institute, La Jolla, California, United States
| | - Hema Aluri
- Department of Diagnosis and Health Promotion, Tufts University School of Dental Medicine, Boston, Massachusetts, United States
| | - Suharika Thotakura
- Department of Diagnosis and Health Promotion, Tufts University School of Dental Medicine, Boston, Massachusetts, United States
| | - Driss Zoukhri
- Department of Diagnosis and Health Promotion, Tufts University School of Dental Medicine, Boston, Massachusetts, United States
| | - Helen P Makarenkova
- Department of Cell and Molecular Biology The Scripps Research Institute, La Jolla, California, United States
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An optimised mouse model of chronic pancreatitis with a combination of ethanol and cerulein. Cent Eur J Immunol 2016; 41:54-63. [PMID: 27095923 PMCID: PMC4829821 DOI: 10.5114/ceji.2016.58816] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 08/30/2015] [Indexed: 02/08/2023] Open
Abstract
Introduction Chronic pancreatitis (CP) is an intractable and multi-factorial disorder. Developing appropriate animal models is an essential step in pancreatitis research, and the best ones are those which mimic the human disorder both aetiologically and pathophysiologically. The current study presents an optimised protocol for creating a murine model of CP, which mimics the initial steps of chronic pancreatitis in alcohol chronic pancreatitis and compares it with two other mouse models treated with cerulein or ethanol alone. Material and methods Thirty-two male C57BL/6 mice were randomly selected, divided into four groups, and treated intraperitoneally with saline (10 ml/kg, control group), ethanol (3 g/kg; 30% v/v), cerulein (50 µg/kg), or ethanol + cerulein, for six weeks. Histopathological and immunohistochemical assays for chronic pancreatitis index along with real-time PCR assessments for mRNA levels of inflammatory cytokines and fibrogenic markers were conducted to verify the CP induction. Results The results indicated that CP index (CPI) was significantly increased in ethanol-cerulein mice compared to the saline, ethanol, and cerulein groups (p < 0.001). Interleukin 1β (IL-1β), tumor necrosis factor α (TNF-α), transforming growth factor β (TGF-β), α-smooth muscle actin (α-SMA), and myeloperoxidase activity were also significantly greater in both cerulein and ethanol-cerulein groups than in the saline treated animals (p < 0.001). Immunohistochemical analysis revealed enhanced expression of TGF-β and α-SMA in ethanol-cerulein mice compared to the saline group. Conclusions Intraperitoneal (IP) injections of ethanol and cerulein could successfully induce CP in mice. IP injections of ethanol provide higher reproducibility compared to ethanol feeding. The model is simple, non-invasive, reproducible, and time-saving. Since the protocol mimics the initial phases of CP development in alcoholics, it can be used for investigating basic mechanisms and testing new therapies.
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Antifibrotic properties of receptor for advanced glycation end products in idiopathic pulmonary fibrosis. Pulm Pharmacol Ther 2015; 35:34-41. [PMID: 26545872 DOI: 10.1016/j.pupt.2015.10.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 10/02/2015] [Accepted: 10/28/2015] [Indexed: 11/23/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive chronic interstitial lung disease with poor survival. Previous reports suggested the contributory effect of receptor for advanced glycation end products (RAGE) to the pathogenesis of IPF. But the findings are controversial. The present in vivo study with RAGE null mice, we further confirmed the evidence that lack of RAGE evolves worse bleomycin-induced pulmonary fibrosis compared with control mice. Moreover, RAGE null mice spontaneously developed similar pathogenesis of lung fibrosis via immunohistochemical staining. In addition, we investigated the negative roles of RAGE on epithelial-mesenchymal transition (EMT) indicated by elevated α-smooth muscle actin (α-SMA) and collagen-I (Col-I) deposition in A549 cell treated with transforming growth factor-β (TGF-β), all of which were blocked by sRAGE, a decoy receptor. Furthermore, interacting with the specific ligand as AGE, RAGE blocked TGF-β-induced activation of Smad2, ERK and JNK signals in A549 cells, which were also challenged by sRAGE administration. This present study confirmed an important role of RAGE in vivo and vitro models of pulmonary fibrosis and suggested the therapeutic possibility for pulmonary fibrosis via RAGE regulation.
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Liang D, Wang Y, Zhu Z, Yang G, An G, Li X, Niu P, Chen L, Tian L. Increased expression of bone morphogenetic protein-7 and its related pathway provides an anti-fibrotic effect on silica induced fibrosis in vitro. Toxicol Res (Camb) 2015. [DOI: 10.1039/c5tx00159e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
BMP-7 exerts an inhibitory effect on silica induced fibrosis in RLE-6TN cells via suppressing TGF-β signaling and activating BMP signaling.
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Affiliation(s)
- Di Liang
- School of Public Health
- Capital Medical University
- Beijing 100069
- China
- Beijing Key Laboratory of Environmental Toxicology
| | - Yan Wang
- School of Public Health
- Capital Medical University
- Beijing 100069
- China
- Beijing Key Laboratory of Environmental Toxicology
| | - Zhonghui Zhu
- School of Public Health
- Capital Medical University
- Beijing 100069
- China
- Beijing Key Laboratory of Environmental Toxicology
| | - Gengxia Yang
- Oncology Minimally Invasive Interventional Center
- Beijing Youan Hospital
- Capital Medical University
- Beijing 100069
- China
| | - Guoliang An
- School of Public Health
- Capital Medical University
- Beijing 100069
- China
- Beijing Key Laboratory of Environmental Toxicology
| | - Xiaoli Li
- School of Public Health
- Capital Medical University
- Beijing 100069
- China
- Beijing Key Laboratory of Environmental Toxicology
| | - Piye Niu
- School of Public Health
- Capital Medical University
- Beijing 100069
- China
- Beijing Key Laboratory of Environmental Toxicology
| | - Li Chen
- School of Public Health
- Capital Medical University
- Beijing 100069
- China
- Beijing Key Laboratory of Environmental Toxicology
| | - Lin Tian
- School of Public Health
- Capital Medical University
- Beijing 100069
- China
- Beijing Key Laboratory of Environmental Toxicology
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