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Gu J, Zhou Z, Xu S, Pan W, Wang J, Liu O, Wang S, Xu J. Topical Application of Nitrate Ameliorates Skin Fibrosis by Regulating ST2 +CD4 + T Cells in Systemic Sclerosis Mouse Model. J Invest Dermatol 2024:S0022-202X(24)01870-0. [PMID: 38945439 DOI: 10.1016/j.jid.2024.06.1273] [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: 01/06/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 07/02/2024]
Abstract
Systemic sclerosis (SSc) is characterized by intractable multiorgan fibrosis caused by vascular and immune dysfunction. Currently, effective therapeutic options for patients with SSc are limited. Nitrate, an abundant nutrient in the diet, has been demonstrated to be preventative and therapeutic for several diseases. To determine whether nitrate can slow or reverse SSc progression, topical application of nitrate delivered by dissolving microneedles was used to treat a bleomycin (BLM)-induced dermal fibrosis mouse model. In this study, nitrate considerably attenuated dermal thickness, stiffness, and collagen deposition. Bulk RNA sequencing of skin revealed that Cd4 was a key hub gene in SSc nitrate therapy. Additionally, BLM-induced cytokines and chemokines were inhibited by nitrate, and CD4+ T cells infiltration markedly declined. Il4, Il6, Il13, and Tgfb expression in CD4+ T cells isolated from skin biopsies also significantly decreased. Mechanistically, Il1rl1, a type2 immune response inducer, was markedly repressed in isolated CD4+ T cells and dermal tissues after nitrate treatment. Remarkably, compared with wild type mice, mice lacking Il1rl1 showed impaired transcriptional profiles after intradermal BLM injection. Adoptive transfer of ST2+CD4+ T cells promoted bleomycin-induced Rag2-/- mice dermal fibrosis. Collectively, these findings demonstrate that nitrate targeting ST2+CD4+ T cells is an effective therapeutic option for SSc.
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Affiliation(s)
- Jianyu Gu
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Zekun Zhou
- Hunan Key Laboratory of Oral Health Research, Hunan 3D Printing Engineering Research Center of Oral Care, Hunan Clinical Research Center of Oral Major Diseases and Oral Health, Academician Workstation for Oral-maxilofacial and Regenerative Medicine, Xiangya Stomatological Hospital, Xiangya School of Stomatology, Central South University, Changsha, 410008, Hunan, China
| | - Shihan Xu
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China; Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, Guangdong, China
| | - Wen Pan
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Jinsong Wang
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Ousheng Liu
- Hunan Key Laboratory of Oral Health Research, Hunan 3D Printing Engineering Research Center of Oral Care, Hunan Clinical Research Center of Oral Major Diseases and Oral Health, Academician Workstation for Oral-maxilofacial and Regenerative Medicine, Xiangya Stomatological Hospital, Xiangya School of Stomatology, Central South University, Changsha, 410008, Hunan, China
| | - Songlin Wang
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China; Immunology Research Centre for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China; Laboratory of Homeostatic Medicine, School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China; Research Units of Tooth Development and Regeneration, Chinese Academy of Medical Sciences, Beijing, 100069, China.
| | - Junji Xu
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China; Immunology Research Centre for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China; Department of Periodontics, Beijing Stomatological Hospital, Capital Medical University School of Stomatology, Beijing, 100050, China.
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Xu C, Wang Z, Liu YJ, Duan K, Guan J. Harnessing GMNP-loaded BMSC-derived EVs to target miR-3064-5p via MEG3 overexpression: Implications for diabetic osteoporosis therapy in rats. Cell Signal 2024; 118:111055. [PMID: 38246512 DOI: 10.1016/j.cellsig.2024.111055] [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: 11/05/2023] [Revised: 01/07/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024]
Abstract
Diabetic osteoporosis (DO) is a significant complication of diabetes, characterized by a decrease in bone mineral density and an increase in fracture risk. Magnetic nanoparticles (GMNPs) have emerged as potential drug carriers for various therapeutic applications. This study investigated the molecular mechanism of GMNPs loaded with bone marrow mesenchymal stem cell (BMSC) derived extracellular vesicles (EVs) overexpressing MEG3 target miR-3064-5p to induce NR4A3 for treating DO in rats. Initial analysis was carried out on GEO datasets GSE7158 and GSE62589, revealing a notable downregulation of NR4A3 in osteoporotic samples. Subsequent in vitro studies demonstrated the effective uptake of BMSC-EVs-MEG3 by osteoblasts and its potential to inhibit miR-3064-5p, activating the PINK1/Parkin signaling pathway and thus promoting mitochondrial autophagy, osteoblast proliferation, and differentiation. In vivo, experiments using DO rat models further substantiated the therapeutic efficacy of GMNPE-EVs-MEG3 in alleviating osteoporosis symptoms. In conclusion, GMNPs loaded with BMSC-EVs, through the delivery of MEG3 targeting miR-3064-5p, can effectively promote NR4A3 expression, activate the PINK1/Parkin pathway, and thereby enhance osteoblast proliferation and differentiation, offering a promising treatment for DO.
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Affiliation(s)
- Chen Xu
- Department of Orthopedics, Bengbu Medical University Affiliated to First Hospital, Bengbu 233000, Anhui Province, China; Anhui Province Key Laboratory of Tissue Transplantation (Bengbu Medical College), 2600 Donghai Avenue, Bengbu 233030, Anhui Province, China
| | - Zhaodong Wang
- Department of Orthopedics, Bengbu Medical University Affiliated to First Hospital, Bengbu 233000, Anhui Province, China; Anhui Province Key Laboratory of Tissue Transplantation (Bengbu Medical College), 2600 Donghai Avenue, Bengbu 233030, Anhui Province, China
| | - Ya Jun Liu
- Department of Orthopedics, Bengbu Medical University Affiliated to First Hospital, Bengbu 233000, Anhui Province, China; Anhui Province Key Laboratory of Tissue Transplantation (Bengbu Medical College), 2600 Donghai Avenue, Bengbu 233030, Anhui Province, China
| | - Keyou Duan
- Department of Orthopedics, Bengbu Medical University Affiliated to First Hospital, Bengbu 233000, Anhui Province, China; Anhui Province Key Laboratory of Tissue Transplantation (Bengbu Medical College), 2600 Donghai Avenue, Bengbu 233030, Anhui Province, China
| | - Jianzhong Guan
- Department of Orthopedics, Bengbu Medical University Affiliated to First Hospital, Bengbu 233000, Anhui Province, China; Anhui Province Key Laboratory of Tissue Transplantation (Bengbu Medical College), 2600 Donghai Avenue, Bengbu 233030, Anhui Province, China.
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Qin L, Li Y, Wang S. Safety concerns of preserved food-does nitrite cause disease? Sci Bull (Beijing) 2023; 68:2915-2918. [PMID: 37919160 DOI: 10.1016/j.scib.2023.10.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Affiliation(s)
- Lizheng Qin
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing 100050, China; Department of Oral and Maxillofacial & Head and Neck Oncology, Capital Medical University School of Stomatology, Beijing 100050, China
| | - Yajie Li
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing 100050, China
| | - Songlin Wang
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing 100050, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China.
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