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Yadav JP, Verma A, Pathak P, Dwivedi AR, Singh AK, Kumar P, Khalilullah H, Jaremko M, Emwas AH, Patel DK. Phytoconstituents as modulators of NF-κB signalling: Investigating therapeutic potential for diabetic wound healing. Biomed Pharmacother 2024; 177:117058. [PMID: 38968797 DOI: 10.1016/j.biopha.2024.117058] [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: 04/15/2024] [Revised: 06/14/2024] [Accepted: 06/26/2024] [Indexed: 07/07/2024] Open
Abstract
The NF-κB pathway plays a pivotal role in impeding the diabetic wound healing process, contributing to prolonged inflammation, diminished angiogenesis, and reduced proliferation. In contrast to modern synthetic therapies, naturally occurring phytoconstituents are well-studied inhibitors of the NF-κB pathway that are now attracting increased attention in the context of diabetic wound healing because of lower toxicity, better safety and efficacy, and cost-effectiveness. This study explores recent research on phytoconstituent-based therapies and delve into their action mechanisms targeting the NF-κB pathway and potential for assisting effective healing of diabetic wounds. For this purpose, we have carried out surveys of recent literature and analyzed studies from prominent databases such as Science Direct, Scopus, PubMed, Google Scholar, EMBASE, and Web of Science. The classification of phytoconstituents into various categorie such as: alkaloids, triterpenoids, phenolics, polyphenols, flavonoids, monoterpene glycosides, naphthoquinones and tocopherols. Noteworthy phytoconstituents, including Neferine, Plumbagin, Boswellic acid, Genistein, Luteolin, Kirenol, Rutin, Vicenin-2, Gamma-tocopherol, Icariin, Resveratrol, Mangiferin, Betulinic acid, Berberine, Syringic acid, Gallocatechin, Curcumin, Loureirin-A, Loureirin-B, Lupeol, Paeoniflorin, and Puerarin emerge from these studies as promising agents for diabetic wound healing through the inhibition of the NF-κB pathway. Extensive research on various phytoconstituents has revealed how they modulate signalling pathways, including NF-κB, studies that demonstrate the potential for development of therapeutic phytoconstituents to assist healing of chronic diabetic wounds.
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Affiliation(s)
- Jagat Pal Yadav
- Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj 211007, India; Pharmacology Research Laboratory, Faculty of Pharmaceutical Sciences, Rama University, Kanpur 209217, India; Bioorganic and Medicinal Chemistry Research Laboratory, Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj 211007, India.
| | - Amita Verma
- Bioorganic and Medicinal Chemistry Research Laboratory, Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj 211007, India
| | - Prateek Pathak
- Department of Pharmaceutical Analysis, Quality Assurance and Pharmaceutical Chemistry, GITAM School of Pharmacy, GITAM (Deemed to be University), Hyderabad Campus, 502329, India
| | - Ashish R Dwivedi
- Department of Pharmaceutical Analysis, Quality Assurance and Pharmaceutical Chemistry, GITAM School of Pharmacy, GITAM (Deemed to be University), Hyderabad Campus, 502329, India
| | - Ankit Kumar Singh
- Bioorganic and Medicinal Chemistry Research Laboratory, Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj 211007, India; Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda 151401, India
| | - Pradeep Kumar
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda 151401, India
| | - Habibullah Khalilullah
- Department of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Unayzah 51911, Saudi Arabia
| | - Mariusz Jaremko
- Smart-Health Initiative (SHI) and Red Sea Research Center (RSRC), Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Abdul-Hamid Emwas
- Core Labs, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Dinesh Kumar Patel
- Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj 211007, India.
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Lu Y, Wang Y, Wang J, Liang L, Li J, Yu Y, Zeng J, He M, Wei X, Liu Z, Shi P, Li J. A comprehensive exploration of hydrogel applications in multi-stage skin wound healing. Biomater Sci 2024; 12:3745-3764. [PMID: 38959069 DOI: 10.1039/d4bm00394b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
Hydrogels, as an emerging biomaterial, have found extensive use in the healing of wounds due to their distinctive physicochemical structure and functional properties. Moreover, hydrogels can be made to match a range of therapeutic requirements for materials used in wound healing through specific functional modifications. This review provides a step-by-step explanation of the processes involved in cutaneous wound healing, including hemostasis, inflammation, proliferation, and reconstitution, along with an investigation of the factors that impact these processes. Furthermore, a thorough analysis is conducted on the various stages of the wound healing process at which functional hydrogels are implemented, including hemostasis, anti-infection measures, encouraging regeneration, scar reduction, and wound monitoring. Next, the latest progress of multifunctional hydrogels for wound healing and the methods to achieve these functions are discussed in depth and categorized for elucidation. Finally, perspectives and challenges associated with the clinical applications of multifunctional hydrogels are discussed.
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Affiliation(s)
- Yongping Lu
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Yuemin Wang
- College of Medicine, Southwest Jiaotong University, 610003, China
| | - Jie Wang
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, P. R. China
| | - Ling Liang
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Jinrong Li
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Yue Yu
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Jia Zeng
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Mingfang He
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Xipeng Wei
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Zhining Liu
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Ping Shi
- Guangyuan Central Hospital, Guangyuan 628000, P. R. China.
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
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Liu W, Yang Y, Li M, Mo J. Double cross-linked graphene oxide hydrogel for promoting healing of diabetic ulcers. Front Chem 2024; 12:1355646. [PMID: 38456184 PMCID: PMC10917884 DOI: 10.3389/fchem.2024.1355646] [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: 12/14/2023] [Accepted: 02/13/2024] [Indexed: 03/09/2024] Open
Abstract
This study explores the synthesis and characterization of a novel double cross-linked hydrogel composed of polyvinyl alcohol (PVA), sodium alginate (SA), graphene oxide (GO), and glutathione (GSH), henceforth referred to as PVA/SA/GO/GSH. This innovative hydrogel system incorporates two distinct types of cross-linking networks and is meticulously engineered to exhibit sensitivity to high glucose and/or reactive oxygen species (ROS) environments. A sequential approach was adopted in the hydrogel formation. The initial phase involved the absorption of GSH onto GO, which was subsequently functionalized with boric acid and polyethylene glycol derivatives via a bio-orthogonal click reaction. This stage constituted the formation of the first chemically cross-linked network. Subsequently, freeze-thaw cycles were utilized to induce a secondary cross-linking process involving PVA and SA, thereby forming the second physically cross-linked network. The resultant PVA/SA/GO/GSH hydrogel retained the advantageous hydrogel properties such as superior water retention capacity and elasticity, and additionally exhibited the ability to responsively release GSH under changes in glucose concentration and/or ROS levels. This feature finds particular relevance in the therapeutic management of diabetic ulcers. Preliminary in vitro evaluation affirmed the hydrogel's biocompatibility and its potential to promote cell migration, inhibit apoptosis, and exhibit antibacterial properties. Further in vivo studies demonstrated that the PVA/SA/GO/GSH hydrogel could facilitate the healing of diabetic ulcer sites by mitigating oxidative stress and regulating glucose levels. Thus, the developed PVA/SA/GO/GSH hydrogel emerges as a promising candidate for diabetic ulcer treatment, owing to its specific bio-responsive traits and therapeutic efficacy.
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Affiliation(s)
- Wenxu Liu
- Lab of Neurology, The Affiliated Hospital of Guilin Medical University, Guilin, China
- School of Pharmacy, Guilin Medical University, Guilin, China
| | - Yunfang Yang
- Health Management Centre, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Meiying Li
- School of Pharmacy, Guilin Medical University, Guilin, China
| | - Jingxin Mo
- Lab of Neurology, The Affiliated Hospital of Guilin Medical University, Guilin, China
- Clinical Research Center for Neurological Diseases of Guangxi Province, The Affiliated Hospital of Guilin Medical University, Guilin, China
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Shi Y, Wang S, Liu D, Wang Z, Zhu Y, Li J, Xu K, Li F, Wen H, Yang R. Exosomal miR-4645-5p from hypoxic bone marrow mesenchymal stem cells facilitates diabetic wound healing by restoring keratinocyte autophagy. BURNS & TRAUMA 2024; 12:tkad058. [PMID: 38250706 PMCID: PMC10796268 DOI: 10.1093/burnst/tkad058] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 01/23/2024]
Abstract
Background Refractory diabetic wounds are a common occurrence in patients with diabetes and epidermis-specific macroautophagy/autophagy impairment has been implicated in their pathogenesis. Therefore, identifying and developing treatment strategies capable of normalizing epidermis-specific macroautophagy/autophagy could facilitate diabetic wound healing. The study aims to investigate the potential of bone marrow mesenchymal stem cell-derived exosomes (BMSC-exos) from hypoxic conditions as a treatment to normalize epidermis-specific autophagy for diabetic wound healing. Methods We compared the effects of bone marrow mesenchymal stem cell (BMSC)-sourced exosomes (BMSC-Exos) from hypoxic conditions to those of BMSC in normoxic conditions (noBMSC-Exos). Our studies involved morphometric assessment of the exosomes, identification of the microRNA (miRNA) responsible for the effects, evaluation of keratinocyte functions and examination of effects of the exosomes on several molecules involved in the autophagy pathway such as microtubule-associated protein 1 light chain 3 beta, beclin 1, sequestosome 1, autophagy-related 5 and autophagy-related 5. The experiments used human BMSCs from the American Type Culture Collection, an in vivo mouse model of diabetes (db/db) to assess wound healing, as well as the human keratinocyte HaCaT cell line. In the methodology, the authors utilized an array of approaches that included electron microscopy, small interfering RNA (siRNA) studies, RNA in situ hybridization, quantitative real-time reverse transcription PCR (qRT-PCR), the isolation, sequencing and differential expression of miRNAs, as well as the use of miR-4645-5p-specific knockdown with an inhibitor. Results Hypoxia affected the release of exosomes from hypoxic BMSCs (hy-BMSCs) and influenced the size and morphology of the exosomes. Moreover, hyBMSC-Exo treatment markedly improved keratinocyte function, including keratinocyte autophagy, proliferation and migration. miRNA microarray and bioinformatics analysis showed that the target genes of the differentially expressed miRNAs were mainly enriched in 'autophagy' and 'process utilizing autophagic mechanism' in the 'biological process' category and miR-4645-5p as a major contributor to the pro-autophagy effect of hyBMSC-Exos. Moreover, mitogen-activated protein kinase-activated protein kinase 2 (MAPKAPK2) was identified as a potential target of exosomal miR-4645-5p; this was confirmed using a dual luciferase assay. Exosomal miR-4645-5p mediates the inactivation of the MAPKAPK2-induced AKT kinase group (comprising AKT1, AKT2, and AKT3), which in turn suppresses AKT-mTORC1 signaling, thereby facilitating miR-4645-5p-mediated autophagy. Conclusions Overall, the results of this study showed that hyBMSC-Exo-mediated transfer of miR-4645-5p inactivated MAPKAPK2-induced AKT-mTORC1 signaling in keratinocytes, which activated keratinocyte autophagy, proliferation and migration, resulting in diabetic wound healing in mice. Collectively, the findings could aid in the development of a novel therapeutic strategy for diabetic wounds.
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Affiliation(s)
- Yan Shi
- Department of Plastic, Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Yongwaizheng Road, Donghu District, Nanchang, Jiangxi, 330006, China
| | - Shang Wang
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, College of Traditional Chinese Medicine, Chongqing Medical University, Medical College Road, Yuzhong District, Chongqing, 400016, China
| | - Dewu Liu
- Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Yongwaizheng Road, Donghu District, Nanchang, Jiangxi, 330006, China
| | - Zhengguang Wang
- Department of Orthopaedics, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing, 100191 China
| | - Yihan Zhu
- Department of Plastic and Aesthetic Surgery, Jiangxi Maternal and Child Health Hospital, Bayidadao Road, Donghu District, Nanchang 330006, China
| | - Jun Li
- HaploX Biotechnology Co., Ltd., Songpingshan Road, Nanshan District, Shenzhen 518057, Guangdong China
| | - Kui Xu
- Key Laboratory of Xin’an Medicine, Ministry of Education, Anhui University of Chinese Medicine,Qianjiang Road, Yaohai District, Hefei 230038, Anhui, P. R. China
| | - Furong Li
- Translational Medicine Collaborative Innovation Center, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affifiliated Hospital, Southern University of Science and Technology), Dongmenbei Road, Luohu District, Shenzhen 518020, Guangdong, China
| | - Huicai Wen
- Department of Plastic, Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Yongwaizheng Road, Donghu District, Nanchang, Jiangxi, 330006, China
| | - Ronghua Yang
- Department of Burn and Plastic Surgery, Guangzhou First People's Hospital, South China University of Technology, Panfu Road, Yuexiu District, Guangzhou, Guangdong, 510180, China
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Xu CQ, Li J, Liang ZQ, Zhong YL, Zhang ZH, Hu XQ, Cao YB, Chen J. Sirtuins in macrophage immune metabolism: A novel target for cardiovascular disorders. Int J Biol Macromol 2024; 256:128270. [PMID: 38000586 DOI: 10.1016/j.ijbiomac.2023.128270] [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: 08/21/2023] [Revised: 10/17/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023]
Abstract
Sirtuins (SIRT1-SIRT7), as a family of NAD+-dependent protein modifying enzymes, have various catalytic functions, such as deacetylases, dealkalylases, and deribonucleases. The Sirtuins family is directly or indirectly involved in pathophysiological processes such as glucolipid metabolism, oxidative stress, DNA repair and inflammatory response through various pathways and assumes an important role in several cardiovascular diseases such as atherosclerosis, myocardial infarction, hypertension and heart failure. A growing number of studies supports that metabolic and bioenergetic reprogramming directs the sequential process of inflammation. Failure of homeostatic restoration leads to many inflammatory diseases, and that macrophages are the central cells involving the inflammatory response and are the main source of inflammatory cytokines. Regulation of cellular metabolism has emerged as a fundamental process controlling macrophage function, but its exact signaling mechanisms remain to be revealed. Understanding the precise molecular basis of metabolic control of macrophage inflammatory processes may provide new approaches for targeting immune metabolism and inflammation. Here, we provide an update of studies in cardiovascular disease on the function and role of sirtuins in macrophage inflammation and metabolism, as well as drug candidates that may interfere with sirtuins, pointing to future prospects in this field.
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Affiliation(s)
- Chen-Qin Xu
- Institute of Vascular Anomalies, Shanghai TCM-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China
| | - Ji Li
- Department of Vascular Disease, Shanghai TCM-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China
| | - Zhi-Qiang Liang
- Department of Vascular Disease, Shanghai TCM-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China
| | - Yi-Lang Zhong
- Institute of Vascular Anomalies, Shanghai TCM-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China
| | - Zhi-Hui Zhang
- Institute of Vascular Anomalies, Shanghai TCM-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China
| | - Xue-Qing Hu
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China; Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, United States of America
| | - Yong-Bing Cao
- Institute of Vascular Anomalies, Shanghai TCM-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China.
| | - Jian Chen
- Institute of Vascular Anomalies, Shanghai TCM-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China.
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Zhang T, Xiang Z, Liu L, Ma Z, Panteleev M, Ataullakhanov FI, Shi Q. Bioinspired Platelet-Anchored Electrospun Meshes for Tight Inflammation Manipulation and Chronic Diabetic Wound Healing. Macromol Biosci 2023; 23:e2300036. [PMID: 37259884 DOI: 10.1002/mabi.202300036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/21/2023] [Indexed: 06/02/2023]
Abstract
Tight manipulation of the initial leukocytes infiltration and macrophages plasticity toward the M2 phenotype remain a challenge for diabetic wound healing. Inspired by the platelet function and platelet-macrophage interaction, a platelet-anchored polylactic acid-b-polyethylene glycol-b-polylactic acid (PLA-PEG-PLA) electrospun dressing is developed for inflammatory modulation and diabetic wounds healing acceleration. PLA-PEG-PLA electrospun meshes encapsulated with thymosin β4 (Tβ4) and CaCl2 is fabricated with electrospinning, followed by immersion of electrospun mesh in platelet-rich plasma to firmly anchor the platelets. It is demonstrated that the anchored platelets on electrospun mesh can enhance the initial macrophage recruitment and control the Tβ4 release from electrospun meshes to facilitate the macrophages polarization to the M2 phenotype. The inflammatory regulation promotes the expression of vascular endothelial growth factor and the migration of vascular endothelial cells for angiogenesis, resulting in accelerated diabetic wounds healing. Therefore, this work paved a new way to design platelet-inspired electrospun meshes for inflammation manipulation and diabetic wound healing.
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Affiliation(s)
- Tianci Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Zehong Xiang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Lei Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Zhifang Ma
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Mikhail Panteleev
- Dmitry Rogachev Natl Res Ctr Pediat Hematol Oncol, 1 Samory Mashela St, Moscow, 117198, Russia
- Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory, 1, build. 2, GSP-1, Moscow, 119991, Russia
| | - Fazly I Ataullakhanov
- Dmitry Rogachev Natl Res Ctr Pediat Hematol Oncol, 1 Samory Mashela St, Moscow, 117198, Russia
- Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory, 1, build. 2, GSP-1, Moscow, 119991, Russia
| | - Qiang Shi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Key Laboratory of Polymeric Materials Design and Synthesis for Biomedical Function, Soochow University, Suzhou, 215123, China
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Wang H, Jin J, Zhang C, Gong F, Hu B, Wu X, Guan M, Xia D. Multifunctional Drugs-Loaded Carbomol Hydrogel Promotes Diabetic Wound Healing via Antimicrobial and Immunoregulation. Gels 2023; 9:761. [PMID: 37754442 PMCID: PMC10530860 DOI: 10.3390/gels9090761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 09/06/2023] [Accepted: 09/15/2023] [Indexed: 09/28/2023] Open
Abstract
Diabetic wound healing poses a significant clinical dilemma. Bacterial infection and immune dysregulation are the predominant reasons. However, conventional wound dressings with a single treatment approach often limit therapeutic efficacy and continue working with difficulty. These limitations cause high treatment failure for diabetic wounds. In this study, we developed a multiple drug-loaded carbomer hydrogel containing Que/Van/Rif (QVR-CBMG) for the simultaneous treatment of infection and immune dysregulation. Honeycomb-like QVR-CBMG hydrogel exhibits excellent abilities to eliminate bacterial infection and biofilms in vitro. Moreover, QVR-CBMG hydrogel possesses an immunomodulatory capacity via affecting the Sirt3/SOD2 signaling pathway to promote M2 macrophages. Furthermore, QVR-CBMG hydrogel effectively promotes wound healing in diabetic rats through several mechanisms. The multidrug-loaded wound dressing not only eliminates bacterial infection and facilitated angiogenesis but also promotes collagen deposition and remodulates the local immune microenvironment in the areas of wounds. In summary, this synthetic strategy to eliminate infection and regulate immune disorders has potential translational value for the prevention and management of diabetic wounds.
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Affiliation(s)
- Hehui Wang
- Department of Orthopedics, The First Affiliated Hospital of Ningbo University, Ningbo 315000, China; (H.W.); (C.Z.); (F.G.); (B.H.); (X.W.)
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310000, China;
| | - Jiale Jin
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310000, China;
| | - Chi Zhang
- Department of Orthopedics, The First Affiliated Hospital of Ningbo University, Ningbo 315000, China; (H.W.); (C.Z.); (F.G.); (B.H.); (X.W.)
| | - Fangyi Gong
- Department of Orthopedics, The First Affiliated Hospital of Ningbo University, Ningbo 315000, China; (H.W.); (C.Z.); (F.G.); (B.H.); (X.W.)
| | - Baiwen Hu
- Department of Orthopedics, The First Affiliated Hospital of Ningbo University, Ningbo 315000, China; (H.W.); (C.Z.); (F.G.); (B.H.); (X.W.)
| | - Xiaochuan Wu
- Department of Orthopedics, The First Affiliated Hospital of Ningbo University, Ningbo 315000, China; (H.W.); (C.Z.); (F.G.); (B.H.); (X.W.)
| | - Ming Guan
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310000, China;
| | - Dongdong Xia
- Department of Orthopedics, The First Affiliated Hospital of Ningbo University, Ningbo 315000, China; (H.W.); (C.Z.); (F.G.); (B.H.); (X.W.)
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Vagnozzi RJ, Robinson EL. Frataxin Deacetylation in Macrophages: Avoiding SIRTain Myocyte Death. Circ Res 2023; 133:648-650. [PMID: 37708247 PMCID: PMC10506396 DOI: 10.1161/circresaha.123.323503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Affiliation(s)
- Ronald J. Vagnozzi
- Department of Medicine, Division of Cardiology, University
of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Consortium for Fibrosis Research & Translation,
University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Gates Institute, University of Colorado Anschutz Medical
Campus, Aurora, CO, USA
| | - Emma L. Robinson
- Department of Medicine, Division of Cardiology, University
of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Consortium for Fibrosis Research & Translation,
University of Colorado Anschutz Medical Campus, Aurora, CO, USA
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9
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Qin Y, Shi Y, Yu Q, Yang S, Wang Y, Dai X, Li G, Cheng Z. Vitamin B12 alleviates myocardial ischemia/reperfusion injury via the SIRT3/AMPK signaling pathway. Biomed Pharmacother 2023; 163:114761. [PMID: 37126929 DOI: 10.1016/j.biopha.2023.114761] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/13/2023] [Accepted: 04/20/2023] [Indexed: 05/03/2023] Open
Abstract
AIM To examine the protective effect of vitamin B12 against myocardial ischemia/reperfusion (I/R) injury and elucidate its underlying mechanism of action. METHODS Mice were subjected to myocardial I/R injury by left anterior descending coronary artery (LAD) occlusion followed by 24 h reperfusion. Cardiac function and injury were evaluated by echocardiography, triphenyl tetrazolium chloride (TTC) and cardiac troponin T (cTnT) staining, and measuring lactate dehydrogenase (LDH) levels. In addition, various molecular and biochemical methods, as well as RNA sequencing were used to determine the effects and mechanism of action of vitamin B12 on I/R injury. RESULTS We found that high doses of vitamin B12 inhibited myocardial I/R injury. Furthermore, our data indicated that vitamin B12 supplementation alleviated cardiac dysfunction and injury by mitigating oxidative stress and apoptosis through downregulation of Nox2, the Ac-SOD2/SOD2 and Bax/Bcl-2 ratios and cleaved caspase-3 expression, and upregulation of SIRT3 expression and AMPK activity. However, these effects were largely reversed following treatment with the SIRT3 inhibitor, 3-TYP. Our RNA-sequencing data further demonstrated that vitamin B12 supplementation reduced inflammation during I/R injury. CONCLUSION High doses of vitamin B12 supplements improved myocardial I/R injury by suppressing the accumulation of reactive oxygen species and apoptosis of myocardial tissue through modulation of the SIRT3/AMPK signaling pathway, while reducing inflammation. Our findings suggested that vitamin B12 administered at high doses could be a potential therapy for myocardial I/R damage.
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Affiliation(s)
- Yuhong Qin
- Department of Hepatology and Translational Medicine, Chongqing University Fuling Hospital, Chongqing 400016, China
| | - Yani Shi
- Department of General medicine, Chongqing University Fuling Hospital, Chongqing 400016, China
| | - Qi Yu
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Shenglan Yang
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Ying Wang
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xiaojia Dai
- Clinic Medical College, Southwest Medical University, Sichuan 646099, China
| | - Guoxing Li
- Institute of Life Sciences, Chongqing Medical University, 400016, China.
| | - Zhe Cheng
- Institute of Life Sciences, Chongqing Medical University, 400016, China; Department of Cardiology, Chongqing University Three Gorges Hospital & Chongqing Three Gorges Central Hospital, 404000, China.
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Jiang H, Xu Q, Wang X, Shi L, Yang X, Sun J, Mei X. Preparation of Antibacterial, Arginine-Modified Ag Nanoclusters in the Hydrogel Used for Promoting Diabetic, Infected Wound Healing. ACS OMEGA 2023; 8:12653-12663. [PMID: 37065086 PMCID: PMC10099449 DOI: 10.1021/acsomega.2c07266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 03/07/2023] [Indexed: 06/19/2023]
Abstract
Diabetic foot ulcers with complex healing wounds accompanied by bacterial infection are considered a significant clinical problem which are made worse by the lack of effective treatments. Traditional antibiotics and dressings have failed to address wound infection and healing, and multifunctional combination therapies are attractive for treating chronic wounds. In this study, arginine (Arg) was loaded onto the surface of silver nanoclusters and encapsulated in a hydrogel to achieve antibacterial, anti-inflammatory, angiogenic, and collagen deposition functions through the slow release of Arg combined with silver nanoclusters. In vitro studies indicated that Arg-Ag@H composites inhibited methicillin-resistant Staphylococcus aureus and Escherichia coli by 94 and 97%, respectively. The inhibition of bacterial biofilms reached 85%, and the migration ability of human venous endothelial cells (HUVECs) increased by 50%. In vitro studies showed that Arg-Ag@H composites increased the healing area of wounds by 26% and resulted in a 98% skin wound-healing rate. Safety studies confirmed the excellent biocompatibility of Arg-Ag@H. The results suggest that Arg-Ag@H offers new possibilities for treating chronic diabetic wounds.
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Affiliation(s)
- Housen Jiang
- Dalian
Medical University, Dalian 116044, Liaoning, China
- Department
of Hand and Foot Orthopedic Surgery, Weifang
People’s Hospital, Weifang 261042, Shandong, China
| | - Qin Xu
- Department
of Hand and Foot Orthopedic Surgery, Weifang
People’s Hospital, Weifang 261042, Shandong, China
| | - Xiaolin Wang
- Department
of Pathology, Weifang Hospital of Traditional
Chinese Medicine, Weifang 261042, Shandong, China
| | - Lin Shi
- Department
of Hand and Foot Orthopedic Surgery, Weifang
People’s Hospital, Weifang 261042, Shandong, China
| | - Xuedong Yang
- Department
of Hand and Foot Orthopedic Surgery, Weifang
People’s Hospital, Weifang 261042, Shandong, China
| | - Jianmin Sun
- Department
of Hand and Foot Orthopedic Surgery, Weifang
People’s Hospital, Weifang 261042, Shandong, China
| | - Xifan Mei
- Department
of Orthopedics, Third Affiliated Hospital
of Jinzhou Medical University, Jinzhou 121000, China
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11
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Chen C, Tang Y, Zhu X, Yang J, Liu Z, Chen Y, Wang J, Shang R, Zheng W, Zhang X, Hu X, Tan J, Zhou J, Peng S, Lu Q, Ju Z, Luo G, He W. P311 Promotes IL-4 Receptor‒Mediated M2 Polarization of Macrophages to Enhance Angiogenesis for Efficient Skin Wound Healing. J Invest Dermatol 2023; 143:648-660.e6. [PMID: 36309321 DOI: 10.1016/j.jid.2022.09.659] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 08/15/2022] [Accepted: 09/23/2022] [Indexed: 11/05/2022]
Abstract
The transition from the proinflammatory phase to the prohealing phase in wound healing is essential for effective skin wound repair, which involves the balance of M1 and M2 polarization of wound-infiltrating macrophages. P311 plays an essential role in promoting wound closure by enhancing the biological function of epidermal stem cells, endothelial cells, and fibroblasts. Nevertheless, whether and how P311 regulates macrophage polarization remains unclear. In this study, we showed that P311 deficiency reduced the M2 polarization of macrophages, thereby attenuating the secretion of M2-like cytokines. The P311 deficiency prolonged the transition from the proinflammatory phase to the prohealing phase, accompanied by weakened angiogenesis and retarded granulation tissue formation, both of which coordinately hinder the healing of skin wounds. Mechanistically, P311 deficiency downregulated the expression of IL-4 receptor on macrophages, followed by less activation of the IL-4 receptor‒signal transducer and activator of transcription 6 signaling pathway, resulting in impaired M2 macrophage polarization. We further revealed that the mTOR signaling pathway was associated with the regulation of P311 on the expression of IL-4 receptor in macrophages. Thus, our study has highlighted the pivotal role of P311 in promoting the M2 polarization of macrophages for effective skin wound healing.
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Affiliation(s)
- Cheng Chen
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Yuanyang Tang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Academy of Biological Engineering, Chongqing University, Chongqing, China
| | - Xudong Zhu
- Key Laboratory of Aging and Cancer Biology of Zhejiang Province, School of Basic Medicine, Hangzhou Normal University, Hangzhou, China
| | - Jiacai Yang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Zhihui Liu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Yunxia Chen
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Jue Wang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Ruoyu Shang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Wenxia Zheng
- Department of Technical Support, Chengdu Zhijing Technologies, Chengdu, China
| | - Xiaorong Zhang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Xiaohong Hu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Jianglin Tan
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Junyi Zhou
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Shiya Peng
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Department of Dermatology, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Qudong Lu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Department of Urology, Second Affiliated Hospital, Army Medical University, Chongqing, China
| | - Zhenyu Ju
- Key Laboratory of Regenerative Medicine of Ministry of Education, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Institute of Aging and Regenerative Medicine, Jinan University, Guangzhou, China
| | - Gaoxing Luo
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Weifeng He
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China; Chongqing Key Laboratory for Disease Proteomics, Chongqing, China.
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12
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Weng H, Song W, Fu K, Guan Y, Cai G, Huang E, Chen X, Zou H, Ye Q. Proteomic profiling reveals the potential mechanisms and regulatory targets of sirtuin 4 in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced Parkinson's mouse model. Front Neurosci 2023; 16:1035444. [PMID: 36760798 PMCID: PMC9905825 DOI: 10.3389/fnins.2022.1035444] [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: 09/02/2022] [Accepted: 12/06/2022] [Indexed: 01/26/2023] Open
Abstract
Introduction Parkinson's disease (PD), as a common neurodegenerative disease, currently has no effective therapeutic approaches to delay or stop its progression. There is an urgent need to further define its pathogenesis and develop new therapeutic targets. An increasing number of studies have shown that members of the sirtuin (SIRT) family are differentially involved in neurodegenerative diseases, indicating their potential to serve as targets in therapeutic strategies. Mitochondrial SIRT4 possesses multiple enzymatic activities, such as deacetylase, ADP ribosyltransferase, lipoamidase, and deacylase activities, and exhibits different enzymatic activities and target substrates in different tissues and cells; thus, mitochondrial SIRT4 plays an integral role in regulating metabolism. However, the role and mechanism of SIRT4 in PD are not fully understood. This study aimed to investigate the potential mechanism and possible regulatory targets of SIRT4 in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD mice. Methods The expression of the SIRT4 protein in the MPTP-induced PD mouse mice or key familial Parkinson disease protein 7 knockout (DJ-1 KO) rat was compared against the control group by western blot assay. Afterwards, quantitative proteomics and bioinformatics analyses were performed to identify altered proteins in the vitro model and reveal the possible functional role of SIRT4. The most promising molecular target of SIRT4 were screened and validated by viral transfection, western blot assay and reverse transcription quantitative PCR (RT-qPCR) assays. Results The expression of the SIRT4 protein was found to be altered both in the MPTP-induced PD mouse mice and DJ-1KO rats. Following the viral transfection of SIRT4, a quantitative proteomics analysis identified 5,094 altered proteins in the vitro model, including 213 significantly upregulated proteins and 222 significantly downregulated proteins. The results from bioinformatics analyses indicated that SIRT4 mainly affected the ribosomal pathway, propionate metabolism pathway, peroxisome proliferator-activated receptor (PPAR) signaling pathway and peroxisome pathway in cells, and we screened 25 potential molecular targets. Finally, only fatty acid binding protein 4 (FABP4) in the PPAR signaling pathway was regulated by SIRT4 among the 25 molecules. Importantly, the alterations in FABP4 and PPARγ were verified in the MPTP-induced PD mouse model. Discussion Our results indicated that FABP4 in the PPAR signaling pathway is the most promising molecular target of SIRT4 in an MPTP-induced mouse model and revealed the possible functional role of SIRT4. This study provides a reference for future drug development and mechanism research with SIRT4 as a target or biomarker.
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Affiliation(s)
- Huidan Weng
- Department of Neurology, Fujian Medical University Union Hospital, Fuzhou, China,Fujian Key Laboratory of Molecular Neurology, Institute of Neuroscience, Fujian Medical University, Fuzhou, China
| | - Wenjing Song
- Department of Neurology, Fujian Medical University Union Hospital, Fuzhou, China,Fujian Key Laboratory of Molecular Neurology, Institute of Neuroscience, Fujian Medical University, Fuzhou, China
| | - Kangyue Fu
- Department of Neurology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Yunqian Guan
- Cell Therapy Center, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Guoen Cai
- Department of Neurology, Fujian Medical University Union Hospital, Fuzhou, China,Fujian Key Laboratory of Molecular Neurology, Institute of Neuroscience, Fujian Medical University, Fuzhou, China
| | - En Huang
- The School of Basic Medical Sciences, Fujian Key Laboratory of Brain Aging and Neurodegenerative Diseases, Fujian Medical University, Fuzhou, China
| | - Xiaochun Chen
- Department of Neurology, Fujian Medical University Union Hospital, Fuzhou, China,Fujian Key Laboratory of Molecular Neurology, Institute of Neuroscience, Fujian Medical University, Fuzhou, China
| | - Haiqiang Zou
- Department of Neurosurgery, General Hospital of Southern Theatre Command, PLA, Guangzhou, Guangdong, China,Haiqiang Zou,
| | - Qinyong Ye
- Department of Neurology, Fujian Medical University Union Hospital, Fuzhou, China,Fujian Key Laboratory of Molecular Neurology, Institute of Neuroscience, Fujian Medical University, Fuzhou, China,*Correspondence: Qinyong Ye,
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13
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Yu X, Liu P, Li Z, Zhang Z. Function and mechanism of mesenchymal stem cells in the healing of diabetic foot wounds. Front Endocrinol (Lausanne) 2023; 14:1099310. [PMID: 37008908 PMCID: PMC10061144 DOI: 10.3389/fendo.2023.1099310] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 03/06/2023] [Indexed: 03/18/2023] Open
Abstract
Diabetes has become a global public health problem. Diabetic foot is one of the most severe complications of diabetes, which often places a heavy economic burden on patients and seriously affects their quality of life. The current conventional treatment for the diabetic foot can only relieve the symptoms or delay the progression of the disease but cannot repair damaged blood vessels and nerves. An increasing number of studies have shown that mesenchymal stem cells (MSCs) can promote angiogenesis and re-epithelialization, participate in immune regulation, reduce inflammation, and finally repair diabetic foot ulcer (DFU), rendering it an effective means of treating diabetic foot disease. Currently, stem cells used in the treatment of diabetic foot are divided into two categories: autologous and allogeneic. They are mainly derived from the bone marrow, umbilical cord, adipose tissue, and placenta. MSCs from different sources have similar characteristics and subtle differences. Mastering their features to better select and use MSCs is the premise of improving the therapeutic effect of DFU. This article reviews the types and characteristics of MSCs and their molecular mechanisms and functions in treating DFU to provide innovative ideas for using MSCs to treat diabetic foot and promote wound healing.
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Affiliation(s)
- Xiaoping Yu
- School of Medicine and Nursing, Chengdu University, Chengdu, Sichuan, China
| | - Pan Liu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Zheng Li
- People’s Hospital of Jiulongpo District, Chongqing, China
| | - Zhengdong Zhang
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
- Department of Orthopedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
- *Correspondence: Zhengdong Zhang,
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14
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Li L, Zhang Y, Luo Y, Meng X, Pan G, Zhang H, Li Y, Zhang B. The Molecular Basis of the Anti-Inflammatory Property of Astragaloside IV for the Treatment of Diabetes and Its Complications. Drug Des Devel Ther 2023; 17:771-790. [PMID: 36925998 PMCID: PMC10013573 DOI: 10.2147/dddt.s399423] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/03/2023] [Indexed: 03/12/2023] Open
Abstract
Astragali Radix is a significant traditional Chinese medication, and has a long history of clinical application in the treatment of diabetes mellitus (DM) and its complications. AS-IV is an active saponin isolated from it. Modern pharmacological study shows that AS-IV has anti-inflammatory, anti-oxidant and immunomodulatory activities. The popular inflammatory etiology of diabetes suggests that DM is a natural immune and low-grade inflammatory disease. Pharmacological intervention of the inflammatory response may provide promising and alternative approaches for the prevention and treatment of DM and its complications. Therefore, this article focuses on the potential of AS-IV in the treatment of DM from the perspective of an anti-inflammatory molecular basis. AS-IV plays a role by regulating a variety of anti-inflammatory pathways in multiple organs, tissues and target cells throughout the body. The blockade of the NF-κB inflammatory signaling pathway may be the central link of AS-IV's anti-inflammatory effect, resulting in a reduction in the tissue structure and function damage stimulated by inflammatory factors. In addition, AS-IV can delay the onset of DM and its complications by inhibiting inflammation-related oxidative stress, fibrosis and apoptosis signals. In conclusion, AS-IV has therapeutic prospects from the perspective of reducing the inflammation of DM and its complications. An in-depth study on the anti-inflammatory mechanism of AS-IV is of great significance for the effective use of Chinese herbal medicine and the promotion of its status and influence on the world.
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Affiliation(s)
- Lin Li
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Yuwei Zhang
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Yudan Luo
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Xianghui Meng
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Guixiang Pan
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300250, People's Republic of China
| | - Han Zhang
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Yuhong Li
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Boli Zhang
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
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15
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SIRT3 improves alveolar epithelial cell damage caused by bronchopulmonary dysplasia through deacetylation of FOXO1. Allergol Immunopathol (Madr) 2023; 51:191-204. [PMID: 36916106 DOI: 10.15586/aei.v51i2.710] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 12/15/2022] [Indexed: 03/08/2023]
Abstract
BACKGROUND Bronchopulmonary dysplasia (BPD) is a serious and long-term lung condition commonly observed in premature babies. Sirtuin 3 (SIRT3) has been reported to reduce pulmonary injury and pulmonary fibrosis. OBJECTIVE The present study investigated the specific role of SIRT3 in BPD by establishing hyperoxia-induced BPD rat and cell models. Hematoxylin and eosin staining was used to observe pathological changes in lung tissues. MATERIALS AND METHODS The expression levels of SIRT3 and forkhead box protein O1 (FOXO1), as well as its acetylation levels, were detected in hyperoxia-induced lung tissues and cells by Western blot analysis and reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Levels of reactive oxygen species, superoxide dismutase, and malondialdehyde were assessed by using biochemical kits. Following SIRT3 overexpression, the levels of inflammatory cytokines were assessed by RT-qPCR. Apoptosis was determined by terminal deoxynucleotidyl transferase dUTP nickend labeling (TUNEL) and Western blot analysis. Upon FOXO1 knockout, cell inflammation, oxidative stress and apoptosis were evaluated again. RESULTS Compared to the control group, the SIRT3 and FOXO1 expression levels were decreased and the FOXO1 acetylation levels were increased in hyperoxia-induced lung tissues and cells. In addition, SIRT3 reduced hyperoxia-induced inflammation, oxidative stress, and apoptosis in A549 cells, and inhibited FOXO1 acetylation to activate FOXO1. However, FOXO1 knockdown reversed the effects of SIRT3 overexpression in hyperoxia-induced A549 cells. CONCLUSION SIRT3 relieved alveolar epithelial cell damage caused by BPD via deacetylation of FOXO1, suggesting that SIRT3 could be a therapeutic target in BPD.
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16
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D'Onofrio N, Prattichizzo F, Marfella R, Sardu C, Martino E, Scisciola L, Marfella L, Grotta RL, Frigé C, Paolisso G, Ceriello A, Balestrieri ML. SIRT3 mediates the effects of PCSK9 inhibitors on inflammation, autophagy, and oxidative stress in endothelial cells. Theranostics 2023; 13:531-542. [PMID: 36632236 PMCID: PMC9830434 DOI: 10.7150/thno.80289] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 12/01/2022] [Indexed: 01/04/2023] Open
Abstract
Background: Proprotein convertase subtilisin-kexin type 9 (PCSK9) inhibitors (i) are a class of lipid-lowering drugs suggested to hold a plethora of beneficial effects independent of their LDL cholesterol-lowering properties. However, the mechanism underlying such observations is debated. Methods: Human aortic endothelial cells (TeloHAEC) were pre-treated with 100 µg/mL of the PCSK9i evolocumab and then exposed to 20 ng/mL of IL-6, a major driver of cardiovascular diseases (CVD), in both naïve state and after siRNA-mediated suppression of the NAD-dependent deacetylase sirtuin-3 (SIRT3). Inflammation, autophagy, and oxidative stress were assessed through Western Blots, ELISAs, and/or immunofluorescence coupled by flow cytometry. To explore the human relevance of the findings, we also evaluated the expression of IL-6, SIRT3, IL-1β, the ratio LC3B II/I, and PCSK9 within the plaques of patients undergoing carotid endarterectomy (n=277), testing possible correlations between these proteins. Results: PCSK9i improved a range of phenotypes including the activation of inflammatory pathways, oxidative stress, and autophagy. Indeed, treatment with PCSK9i was able to counteract the IL-6 induced increase in inflammasome activation, the accrual of autophagic cells, and mitochondrial ROS accumulation. Of note, silencing of SIRT3 reverted the beneficial effects observed with PCSK9i treatment on all these phenomena. In atheroma specimens, the expression of PCSK9 was inversely related to that of SIRT3 while positively correlating with IL-6, IL-1β, and the ratio LC3B II/I. Conclusions: Overall, these data suggest that PCSK9i bear intrinsic anti-inflammatory, anti-autophagic, and antioxidant properties in endothelial cells, and that these pleiotropic effects might be mediated, at least in part, by SIRT3. These results provide an additional mechanism supporting the emerging knowledge relative to the benefit of PCSK9i on CVD beyond LDL-lowering and uncover SIRT3 as a putative mediator of such pleiotropy.
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Affiliation(s)
- Nunzia D'Onofrio
- Department of Precision Medicine, the University of Campania “Luigi Vanvitelli” Italy
| | | | - Raffaele Marfella
- Università degli Studi della Campania “Luigi Vanvitelli”, Piazza Luigi Miraglia 2, 80138, Naples, Italy.,Mediterranea Cardiocentro, 80122, Naples, Italy
| | - Celestino Sardu
- Università degli Studi della Campania “Luigi Vanvitelli”, Piazza Luigi Miraglia 2, 80138, Naples, Italy
| | - Elisa Martino
- Department of Precision Medicine, the University of Campania “Luigi Vanvitelli” Italy
| | - Lucia Scisciola
- Università degli Studi della Campania “Luigi Vanvitelli”, Piazza Luigi Miraglia 2, 80138, Naples, Italy
| | - Lorenza Marfella
- Università degli Studi della Campania “Luigi Vanvitelli”, Piazza Luigi Miraglia 2, 80138, Naples, Italy
| | | | - Chiara Frigé
- IRCCS MultiMedica, Via Fantoli 16/15, 20138, Milan, Italy
| | - Giuseppe Paolisso
- Università degli Studi della Campania “Luigi Vanvitelli”, Piazza Luigi Miraglia 2, 80138, Naples, Italy.,Mediterranea Cardiocentro, 80122, Naples, Italy
| | - Antonio Ceriello
- IRCCS MultiMedica, Via Fantoli 16/15, 20138, Milan, Italy.,✉ Corresponding authors: Maria Luisa Balestrieri, Università degli Studi della Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138, Naples, Italy. E-mail: ; Antonio Ceriello, IRCCS MultiMedica, PST, Via Fantoli 16/15, 20138, Milan, Italy. E-mail:
| | - Maria Luisa Balestrieri
- Department of Precision Medicine, the University of Campania “Luigi Vanvitelli” Italy.,✉ Corresponding authors: Maria Luisa Balestrieri, Università degli Studi della Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138, Naples, Italy. E-mail: ; Antonio Ceriello, IRCCS MultiMedica, PST, Via Fantoli 16/15, 20138, Milan, Italy. E-mail:
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17
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Yang J, Liu X, Shao Y, Zhou H, Pang L, Zhu W. Diagnostic, Prognostic, and Immunological Roles of FABP4 in Pancancer: A Bioinformatics Analysis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:3764914. [PMID: 36532833 PMCID: PMC9754845 DOI: 10.1155/2022/3764914] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 10/15/2022] [Accepted: 11/20/2022] [Indexed: 08/27/2023]
Abstract
BACKGROUND Fatty acid binding protein 4 (FABP4) is mainly involved in the regulation of systemic metabolism through various lipid signaling pathways. Metabolic reprogramming is one of the important factors in the development and progression of cancer. It has been recently reported that FABP4 is closely related to the development of cancer and may be involved in tumor invasion and metastasis. METHODS In this study, we explored the expression pattern of FABP4 in pancancer through TCGA and CPTAC. Using TCGA, Kaplan-Meier Plotter, and STRING databases, to explore its diagnostic and prognostic value, and function through GO/KEGG and GSEA. Then, using the TIMER2.0 database, we investigated the correlation between FABP4 expression and immune infiltration in cancers, especially stomach adenocarcinomas (STAD) and colorectal adenocarcinoma (COADREAD). RESULTS Compared with normal tissues, the expression of FABP4 in more than 10 tumor tissues was lower (p < 0.05). Through the receiver operating characteristic (ROC) curve, the diagnostic value was found higher in colorectal cancer, breast cancer, thyroid cancer, and lung cancer, with the area under the curve (AUC) > 0.9. Through the K-M curve, FABP4 was found to correlate to the prognosis of various cancers. The results of gastric cancer and colorectal cancer are consistent. The low-expression group has a better prognosis than the high-expression group, and the expression of FABP4 in the early T and N stages of gastrointestinal tumors is lower. FABP4 highly expressed gene set is mostly enriched in extracellular matrix degradation and cell adhesion functions. Gastrointestinal tumors with high expression of FABP4 may have more immunosuppressive effects on macrophages and have a worse prognosis. CONCLUSION FABP4 can be used as a diagnostic and prognostic biomarker in pancancer, and its high expression in gastrointestinal tumors suggests poor prognosis. This may be correlated to the immune infiltration of macrophages and epithelial-mesenchymal transition.
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Affiliation(s)
- Jing Yang
- Oncology Center, The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Wujiang, Jiangsu 215228, China
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Xiaojing Liu
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of Radiotherapy, The Friendship Hospital of Ily Kazak Autonomous Prefecture, Ily, Xinjiang 835000, China
| | - Yueqin Shao
- Oncology Center, The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Wujiang, Jiangsu 215228, China
| | - Hong Zhou
- Oncology Center, The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Wujiang, Jiangsu 215228, China
| | - Lijun Pang
- Oncology Center, The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Wujiang, Jiangsu 215228, China
| | - Wei Zhu
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
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18
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Chen C, Lin Z, Liu W, Hu Q, Wang J, Zhuang X, Guan S, Wu X, Hu T, Quan S, Jin X, Shen J. Emodin accelerates diabetic wound healing by promoting anti-inflammatory macrophage polarization. Eur J Pharmacol 2022; 936:175329. [DOI: 10.1016/j.ejphar.2022.175329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/16/2022]
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19
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Wang D, Chen MW, Wei YJ, Geng WB, Hu Y, Luo Z, Cai KY. Construction of Wogonin Nanoparticle-Containing Strontium-Doped Nanoporous Structure on Titanium Surface to Promote Osteoporosis Fracture Repair. Adv Healthc Mater 2022; 11:e2201405. [PMID: 36048734 DOI: 10.1002/adhm.202201405] [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: 06/11/2022] [Revised: 08/25/2022] [Indexed: 01/28/2023]
Abstract
M2 polarization of macrophage is an important immunomodulatory event that attenuates inflammation. To regulate the immune microenvironment in osteoporotic conditions for enhancing bone healing, strontium-doped nano-structure is fabricated on the surface of titanium implant via microarc oxidation and electrochemical deposition technology, followed by the addition of multiplayer coatings embedded with silk fibroin-based wogonin nanoparticles (Ti-MAO/Sr/LBLWNP ) by layer-by-layer self-assembly technique (LBL). It is found that Ti-MAO/Sr/LBLWNP can release wogonin and Sr2+ in a sustainable manner for more than 7 and 21 days. In vitro studies show that Ti-MAO/Sr/LBLWNP significantly upregulates the expression of CD206 while reducing the expression of CD86. Meanwhile, Ti-MAO/Sr/LBLWNP can promote the expression level of M2 macrophage anti-inflammatory factor (TGF-β1, Arg-1), which improves the proliferation and osteogenic differentiation of osteoblasts through paracrine signaling. Compared to bare titanium, Ti-MAO/Sr/LBLWNP significantly inhibits the expression of inflammatory factors around the implant and effectively promotes new bone formation at pre-implant interface after implantation for 4 weeks. This study provides a simple and effective method to develop functional titanium alloy materials for osteoporotic fracture repair.
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Affiliation(s)
- Dong Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Mao-Wen Chen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Yu-Jia Wei
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Wen-Bo Geng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Yan Hu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Zhong Luo
- School of Life Science, Chongqing University, Chongqing, 400044, P. R. China
| | - Kai-Yong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China
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20
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Shen Y, Zhang Y, Zhou Z, Wang J, Han D, Sun J, Chen G, Tang Q, Sun W, Chen L. Dysfunction of macrophages leads to diabetic bone regeneration deficiency. Front Immunol 2022; 13:990457. [PMID: 36311779 PMCID: PMC9613949 DOI: 10.3389/fimmu.2022.990457] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 10/03/2022] [Indexed: 11/22/2022] Open
Abstract
Insufficient bone matrix formation caused by diabetic chronic inflammation can result in bone nonunion, which is perceived as a worldwide epidemic, with a substantial socioeconomic and public health burden. Macrophages in microenvironment orchestrate the inflammation and launch the process of bone remodeling and repair, but aberrant activation of macrophages can drive drastic inflammatory responses during diabetic bone regeneration. In diabetes mellitus, the proliferation of resident macrophages in bone microenvironment is limited, while enhanced myeloid differentiation of hematopoietic stem cells (HSCs) leads to increased and constant monocyte recruitment and thus macrophages shift toward the classic pro-inflammatory phenotype, which leads to the deficiency of bone regeneration. In this review, we systematically summarized the anomalous origin of macrophages under diabetic conditions. Moreover, we evaluated the deficit of pro-regeneration macrophages in the diabetic inflammatory microenvironment. Finally, we further discussed the latest developments on strategies based on targeting macrophages to promote diabetic bone regeneration. Briefly, this review aimed to provide a basis for modulating the biological functions of macrophages to accelerate bone regeneration and rescue diabetic fracture healing in the future.
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Affiliation(s)
- Yufeng Shen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Yifan Zhang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Zheng Zhou
- Department of Stomatology, The First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, China
| | - Jinyu Wang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Dong Han
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Jiwei Sun
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Guangjin Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Qingming Tang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Wei Sun
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
- *Correspondence: Lili Chen, ; Wei Sun,
| | - Lili Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
- *Correspondence: Lili Chen, ; Wei Sun,
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21
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Guo D, Lin C, Lu Y, Guan H, Qi W, Zhang H, Shao Y, Zeng C, Zhang R, Zhang H, Bai X, Cai D. FABP4 secreted by M1-polarized macrophages promotes synovitis and angiogenesis to exacerbate rheumatoid arthritis. Bone Res 2022; 10:45. [PMID: 35729106 PMCID: PMC9213409 DOI: 10.1038/s41413-022-00211-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 03/10/2022] [Accepted: 03/20/2022] [Indexed: 12/15/2022] Open
Abstract
Increasing evidence shows that adipokines play a vital role in the development of rheumatoid arthritis (RA). Fatty acid-binding protein 4 (FABP4), a novel adipokine that regulates inflammation and angiogenesis, has been extensively studied in a variety of organs and diseases. However, the effect of FABP4 on RA remains unclear. Here, we found that FABP4 expression was upregulated in synovial M1-polarized macrophages in RA. The increase in FABP4 promoted synovitis, angiogenesis, and cartilage degradation to exacerbate RA progression in vivo and in vitro, whereas BMS309403 (a FABP4 inhibitor) and anagliptin (dipeptidyl peptidase 4 inhibitor) inhibited FABP4 expression in serum and synovial M1-polarized macrophages in mice to alleviate RA progression. Further studies showed that constitutive activation of mammalian target of rapamycin complex 1 (mTORC1) by TSC1 deletion specifically in the myeloid lineage regulated FABP4 expression in macrophages to exacerbate RA progression in mice. In contrast, inhibition of mTORC1 by ras homolog enriched in brain (Rheb1) disruption specifically in the myeloid lineage reduced FABP4 expression in macrophages to attenuate RA development in mice. Our findings established an essential role of FABP4 that is secreted by M1-polarized macrophages in synovitis, angiogenesis, and cartilage degradation in RA. BMS309403 and anagliptin inhibited FABP4 expression in synovial M1-polarized macrophages to alleviate RA development. Hence, FABP4 may represent a potential target for RA therapy.
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Affiliation(s)
- Dong Guo
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Chuangxin Lin
- Department of Orthopedic Surgery, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, China
| | - Yuheng Lu
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Hong Guan
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Weizhong Qi
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Hongbo Zhang
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Yan Shao
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Chun Zeng
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Rongkai Zhang
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Haiyan Zhang
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China. .,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China. .,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China. .,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China.
| | - Xiaochun Bai
- Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China. .,State Key Laboratory of Organ Failure Research, Department of Cell Biology, Southern Medical University School of Basic Medical Sciences, Guangzhou, China.
| | - Daozhang Cai
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China. .,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China. .,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China. .,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China.
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22
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Zaccaron RP, Barbieri RT, Mendes C, Venturini LM, Alves N, Mariano SDS, de Andrade TAM, Hermes de Araújo PH, Feuser PE, Thirupathi A, Machado-de-Ávila RA, Lock Silveira PC. Photobiomodulation associated with lipid nanoparticles and hyaluronic acid accelerate the healing of excisional wounds. J Biomater Appl 2022; 37:668-682. [PMID: 35705485 DOI: 10.1177/08853282221109344] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objectives: This article aimed to investigate the effects of the association between photobiomodulation and hyaluronic acid incorporated in lipid nanoparticles in an epithelial lesion model in inflammatory parameters and oxidative stress. Methods: Eighty Wistar rats were randomly assigned to the following groups: epithelial lesion group (EL); EL+PBM; EL+HA; EL+SLNs; EL+SLNs-HA; EL+PBM+HA; EL+PBM+SLNs; EL+PBM+SLNs-HA. The animals were anesthetized with 4% isofluorane after shaving and induced to an epithelial lesion. Topical treatment with a gel containing HA (0.9%) and/or SLNs (10 mg/mL) and with laser irradiation occurred daily for 1 week. Results: The results showed an increase in wound contraction on the seventh day in the LE + LBM + AH-NPL group, a reduction in pro-inflammatory cytokines (IL-6, IL-1β, and TNF-α), an increase in anti-inflammatory cytokines (IL- 4 and IL-10) and TGF-β. The levels of pro-inflammatory cytokine IL-4 and TGF-β also showed an increase in the LE + NPL-AH, LE + FBM + AH, LE + FBM + NPL and LE + FBM + NPL-AH groups. Regarding oxidative stress parameters, the levels of DCF and nitrite decreased in the combined therapy group when compared to the control group, as well as oxidative damage (carbonyl and sulfhydryl). In the antioxidant defense, there was an increase in GSH and SOD in the combination therapy group. Histological analysis showed a reduction in inflammatory infiltrate in the combination therapy group. The number of fibroblasts and the compaction of collagen fibers did not obtain significant responses. Conclusions: Results analyzed together showed that the combined therapy favored the repair process, and that studies can be carried out to enhance the histological analysis therapy favored the tissue repair process and that studies can be carried out to enhance the histological analysis.
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Affiliation(s)
- Rubya Pereira Zaccaron
- Laboratory of Experimental Phisiopatology, Program of postgraduate in Science of Health, 97853Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Rusilania Tozi Barbieri
- Laboratory of Experimental Phisiopatology, Program of postgraduate in Science of Health, 97853Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Carolini Mendes
- Laboratory of Experimental Phisiopatology, Program of postgraduate in Science of Health, 97853Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Ligia Milanez Venturini
- Laboratory of Experimental Phisiopatology, Program of postgraduate in Science of Health, 97853Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Naiara Alves
- Graduate Program of Biomedical Science, Herminio Ometto Foundation, Araras-SP, Brazil
| | | | | | | | - Paulo Emílio Feuser
- Laboratory of Experimental Phisiopatology, Program of postgraduate in Science of Health, 97853Universidade do Extremo Sul Catarinense, Criciúma, Brazil.,Department of Chemical Engineering and Food Engineering, 28117Federal University of Santa Catarina, Florianopolis, Brazil
| | - Anand Thirupathi
- Faculty of Sports Science, 47862Ningbo University, Ningbo, China
| | - Ricardo Andrez Machado-de-Ávila
- Laboratory of Experimental Phisiopatology, Program of postgraduate in Science of Health, 97853Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Paulo Cesar Lock Silveira
- Laboratory of Experimental Phisiopatology, Program of postgraduate in Science of Health, 97853Universidade do Extremo Sul Catarinense, Criciúma, Brazil
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23
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Wolf SJ, Audu CO, Joshi A, denDekker A, Melvin WJ, Davis FM, Xing X, Wasikowski R, Tsoi LC, Kunkel SL, Gudjonsson JE, O’Riordan MX, Kahlenberg JM, Gallagher KA. IFN-κ is critical for normal wound repair and is decreased in diabetic wounds. JCI Insight 2022; 7:e152765. [PMID: 35358091 PMCID: PMC9090246 DOI: 10.1172/jci.insight.152765] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 03/24/2022] [Indexed: 02/01/2023] Open
Abstract
Wound repair following acute injury requires a coordinated inflammatory response. Type I IFN signaling is important for regulating the inflammatory response after skin injury. IFN-κ, a type I IFN, has recently been found to drive skin inflammation in lupus and psoriasis; however, the role of IFN-κ in the context of normal or dysregulated wound healing is unclear. Here, we show that Ifnk expression is upregulated in keratinocytes early after injury and is essential for normal tissue repair. Under diabetic conditions, IFN-κ was decreased in wound keratinocytes, and early inflammation was impaired. Furthermore, we found that the histone methyltransferase mixed-lineage leukemia 1 (MLL1) is upregulated early following injury and regulates Ifnk expression in diabetic wound keratinocytes via an H3K4me3-mediated mechanism. Using a series of in vivo studies with a geneticall y engineered mouse model (Mll1fl/fl K14cre-) and human wound tissues from patients with T2D, we demonstrate that MLL1 controls wound keratinocyte-mediated Ifnk expression and that Mll1 expression is decreased in T2D keratinocytes. Importantly, we found the administration of IFN-κ early following injury improves diabetic tissue repair through increasing early inflammation, collagen deposition, and reepithelialization. These findings have significant implications for understanding the complex role type I IFNs play in keratinocytes in normal and diabetic wound healing. Additionally, they suggest that IFN may be a viable therapeutic target to improve diabetic wound repair.
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Affiliation(s)
| | | | - Amrita Joshi
- Section of Vascular Surgery, Department of Surgery
| | | | | | | | | | | | | | | | | | | | - J. Michelle Kahlenberg
- Department of Dermatology
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Katherine A. Gallagher
- Section of Vascular Surgery, Department of Surgery
- Department of Microbiology and Immunology, and
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24
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Tanshinone IIA prevents acute lung injury by regulating macrophage polarization. JOURNAL OF INTEGRATIVE MEDICINE 2022; 20:274-280. [PMID: 35181255 DOI: 10.1016/j.joim.2022.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 11/05/2021] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Acute lung injury (ALI) is a serious respiratory dysfunction caused by pathogen or physical invasion. The strong induced inflammation often causes death. Tanshinone IIA (Tan-IIA) is the major constituent of Salvia miltiorrhiza Bunge and has been shown to display anti-inflammatory effects. The aim of the current study was to investigate the effects of Tan-IIA on ALI. METHODS A murine model of lipopolysaccharide (LPS)-induced ALI was used. The lungs and serum samples of mice were extracted at 3 days after treatment. ALI-induced inflammatory damages were confirmed from cytokine detections and histomorphology observations. Effects of Tan-IIA were investigated using in vivo and in vitro ALI models. Tan-IIA mechanisms were investigated by performing Western blot and flow cytometry experiments. A wound-healing assay was performed to confirm the Tan-IIA function. RESULTS The cytokine storm induced by LPS treatment was detected at 3 days after LPS treatment, and alveolar epithelial damage and lymphocyte aggregation were observed. Tan-IIA treatment attenuated the LPS-induced inflammation and reduced the levels of inflammatory cytokines released not only by inhibiting neutrophils, but also by macrophage. Moreover, we found that macrophage activation and polarization after LPS treatment were abrogated after applying the Tan-IIA treatment. An in vitro assay also confirmed that including the Tan-IIA supplement increased the relative amount of the M2 subtype and decreased that of M1. Rebalanced macrophages and Tan-IIA inhibited activations of the nuclear factor-κB and hypoxia-inducible factor pathways. Including Tan-IIA and macrophages also improved alveolar epithelial repair by regulating macrophage polarization. CONCLUSION This study found that while an LPS-induced cytokine storm exacerbated ALI, including Tan-IIA could prevent ALI-induced inflammation and improve the alveolar epithelial repair, and do so by regulating macrophage polarization.
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25
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Colloca A, Balestrieri A, Anastasio C, Balestrieri ML, D’Onofrio N. Mitochondrial Sirtuins in Chronic Degenerative Diseases: New Metabolic Targets in Colorectal Cancer. Int J Mol Sci 2022; 23:ijms23063212. [PMID: 35328633 PMCID: PMC8949044 DOI: 10.3390/ijms23063212] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/09/2022] [Accepted: 03/12/2022] [Indexed: 12/23/2022] Open
Abstract
Sirtuins (SIRTs) are a family of class III histone deacetylases (HDACs) consisting of seven members, widely expressed in mammals. SIRTs mainly participate in metabolic homeostasis, DNA damage repair, cell survival, and differentiation, as well as other cancer-related biological processes. Growing evidence shows that SIRTs have pivotal roles in chronic degenerative diseases, including colorectal cancer (CRC), the third most frequent malignant disease worldwide. Metabolic alterations are gaining attention in the context of CRC development and progression, with mitochondrion representing a crucial point of complex and intricate molecular mechanisms. Mitochondrial SIRTs, SIRT2, SIRT3, SIRT4 and SIRT5, control mitochondrial homeostasis and dynamics. Here, we provide a comprehensive review on the latest advances on the role of mitochondrial SIRTs in the initiation, promotion and progression of CRC. A deeper understanding of the pathways by which mitochondrial SIRTs control CRC metabolism may provide new molecular targets for future innovative strategies for CRC prevention and therapy.
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Affiliation(s)
- Antonino Colloca
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Via L. de Crecchio 7, 80138 Naples, Italy; (A.C.); (C.A.); (N.D.)
| | - Anna Balestrieri
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, U.O.C. Food Control and Food Safety, 80055 Portici, Italy;
| | - Camilla Anastasio
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Via L. de Crecchio 7, 80138 Naples, Italy; (A.C.); (C.A.); (N.D.)
| | - Maria Luisa Balestrieri
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Via L. de Crecchio 7, 80138 Naples, Italy; (A.C.); (C.A.); (N.D.)
- Correspondence: ; Tel.: +39-081-566-5865
| | - Nunzia D’Onofrio
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Via L. de Crecchio 7, 80138 Naples, Italy; (A.C.); (C.A.); (N.D.)
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26
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Song J, Wang J. SIRT3 regulates bronchial epithelium apoptosis and aggravates airway inflammation in asthma. Mol Med Rep 2022; 25:144. [PMID: 35234263 PMCID: PMC8915391 DOI: 10.3892/mmr.2022.12660] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 10/20/2021] [Indexed: 11/06/2022] Open
Affiliation(s)
- Jie Song
- Department of Pulmonary and Critical Care Medicine, Beijing Luhe Hospital, Capital Medical University, Tongzhou, Beijing 101100, P.R. China
| | - Jinxiang Wang
- Department of Pulmonary and Critical Care Medicine, Beijing Luhe Hospital, Capital Medical University, Tongzhou, Beijing 101100, P.R. China
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27
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Notoginsenoside R1 Facilitated Wound Healing in High-Fat Diet/Streptozotocin-Induced Diabetic Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2476493. [PMID: 35069970 PMCID: PMC8777460 DOI: 10.1155/2022/2476493] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 11/03/2021] [Indexed: 12/26/2022]
Abstract
Diabetic ulcers bring about high morbidity and mortality in patients and cause a great economic burden to society as a whole. Since existing treatments cannot fulfil patient requirements, it is urgent to find effective therapies. In this study, the wound healing effect of topical notoginsenoside R1 (NR1) treatment on diabetic full-thickness wounds in type II diabetes mellitus (T2DM) was induced by the combination of a high-fat diet and streptozotocin (STZ) injection. NR1 significantly increased the wound closure rate, enhanced extracellular matrix (ECM) secretion, promoted collagen growth, increased platelet endothelial cell adhesion molecule-1 (CD31) expression, and decreased cleaved caspase-3 expression. RNA-Seq analysis identified ECM remodeling and inflammation as critical biological processes and Timp1 and Mmp3 as important targets in NR1-mediated wound healing. Further experiments showed that NR1-treated wounds demonstrated higher expression of tissue inhibitor of metalloproteinase 1 (TIMP1) and transforming growth factor-β1 (TGFβ1) and lower expression of matrix metallopeptidase 9 (MMP9), matrix metallopeptidase 3 (MMP3), interleukin-1β (IL-1β), and interleukin-6 (IL-6) than diabetic wounds. These investigations promote the understanding of the mechanism of NR1-mediated diabetic wound healing and provide a promising therapeutic drug to enhance diabetic wound healing.
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Hao Y, Yang L, Liu Y, Ye Y, Wang J, Yu C, Yan H, Xing Y, Jia Z, Hu C, Zuo H, Li Y. mmu-miR-145a-5p Accelerates Diabetic Wound Healing by Promoting Macrophage Polarization Toward the M2 Phenotype. Front Med (Lausanne) 2022; 8:775523. [PMID: 34993211 PMCID: PMC8724056 DOI: 10.3389/fmed.2021.775523] [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: 09/14/2021] [Accepted: 11/22/2021] [Indexed: 12/28/2022] Open
Abstract
Diabetic wounds are recalcitrant to healing. One of the important characteristics of diabetic trauma is impaired macrophage polarization with an excessive inflammatory response. Many studies have described the important regulatory roles of microRNAs (miRNAs) in macrophage differentiation and polarization. However, the differentially expressed miRNAs involved in wound healing and their effects on diabetic wounds remain to be further explored. In this study, we first identified differentially expressed miRNAs in the inflammation, tissue formation and reconstruction phases in wound healing using Illumina sequencing and RT-qPCR techniques. Thereafter, the expression of musculus (mmu)-miR-145a-5p (“miR-145a-5p” for short) in excisional wounds of diabetic mice was identified. Finally, expression of miR-145a-5p was measured to determine its effects on macrophage polarization in murine RAW 264.7 macrophage cells and wound healing in diabetic mice. We identified differentially expressed miRNAs at different stages of wound healing, ten of which were further confirmed by RT-qPCR. Expression of miR-145a-5p in diabetic wounds was downregulated during the tissue formation stage. Furthermore, we observed that miR-145a-5p blocked M1 macrophage polarization while promoting M2 phenotype activation in vitro. Administration of miR-145a-5p mimics during initiation of the repair phase significantly accelerated wound healing in db/db diabetic mice. In conclusion, our findings suggest that rectifying macrophage function using miR-145a-5p overexpression accelerates diabetic chronic wound healing.
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Affiliation(s)
- Yanhui Hao
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Leilei Yang
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Ying Liu
- Department of Basic Medicine, Chengde Medical College, Chengde, China
| | - Yumeng Ye
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Jiayu Wang
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Chao Yu
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Hua Yan
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Yuan Xing
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Zhaoqian Jia
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Cuicui Hu
- Academy of Life Sciences, Anhui Medical University, Hefei, China
| | - Hongyan Zuo
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Yang Li
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China.,Academy of Life Sciences, Anhui Medical University, Hefei, China
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Wolf SJ, Melvin WJ, Gallagher K. Macrophage-mediated inflammation in diabetic wound repair. Semin Cell Dev Biol 2021; 119:111-118. [PMID: 34183242 PMCID: PMC8985699 DOI: 10.1016/j.semcdb.2021.06.013] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 06/07/2021] [Accepted: 06/18/2021] [Indexed: 02/08/2023]
Abstract
Non-healing wounds in Type 2 Diabetes (T2D) patients represent the most common cause of amputation in the US, with an associated 5-year mortality of nearly 50%. Our lab has examined tissue from both T2D murine models and human wounds in order to explore mechanisms contributing to impaired wound healing. Current published data in the field point to macrophage function serving a pivotal role in orchestrating appropriate wound healing. Wound macrophages in mice and patients with T2D are characterized by a persistent inflammatory state; however, the mechanisms that control this persistent inflammatory state are unknown. Current literature demonstrates that gene regulation through histone modifications, DNA modifications, and microRNA can influence macrophage plasticity during wound healing. Further, accumulating studies reveal the importance of cells such as adipocytes, infiltrating immune cells (PMNs and T cells), and keratinocytes secrete factors that may help drive macrophage polarization. This review will examine the role of macrophages in the wound healing process, along with their function and interactions with other cells, and how it is perturbed in T2D. We also explore epigenetic factors that regulate macrophage polarization in wounds, while highlighting the emerging role of other cell types that may influence macrophage phenotype following tissue injury.
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Affiliation(s)
- Sonya J. Wolf
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - William J. Melvin
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Katherine Gallagher
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA,Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA,Correspondence to: Department of Surgery, University of Michigan, 1500 East Medical Center Drive, SPC 5867, Ann Arbor, MI 48109, USA. (K. Gallagher)
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Coronavirus induces diabetic macrophage-mediated inflammation via SETDB2. Proc Natl Acad Sci U S A 2021; 118:2101071118. [PMID: 34479991 PMCID: PMC8463849 DOI: 10.1073/pnas.2101071118] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 07/29/2021] [Indexed: 01/08/2023] Open
Abstract
The COVID-19 pandemic has disproportionately affected patients with comorbidities, namely, obesity and type 2 diabetes. Macrophages (Mφs) are a key innate immune cell primarily responsible for the harmful, hyperinflammatory “cytokine storm” in patients that develop severe COVID-19. We describe a mechanism for this Mφ-mediated cytokine storm in response to coronavirus. In response to coronavirus infection, expression of the chromatin-modifying enzyme, SETDB2, decreases in Mφs, leading to increased transcription of inflammatory cytokines. Further, we find SETDB2 is regulated by an interferon beta (IFNβ)/JaK/STAT3 mechanism, and that exogenous administration of IFNβ can reverse inflammation, particularly in diabetic Mφs via an increase in SETDB2. Together, these results suggest therapeutic targeting of the IFNβ/SETDB2 axis in diabetic patients with COVID-19 may decrease pathologic inflammation. COVID-19 induces a robust, extended inflammatory “cytokine storm” that contributes to an increased morbidity and mortality, particularly in patients with type 2 diabetes (T2D). Macrophages are a key innate immune cell population responsible for the cytokine storm that has been shown, in T2D, to promote excess inflammation in response to infection. Using peripheral monocytes and sera from human patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and a murine hepatitis coronavirus (MHV-A59) (an established murine model of SARS), we identified that coronavirus induces an increased Mφ-mediated inflammatory response due to a coronavirus-induced decrease in the histone methyltransferase, SETDB2. This decrease in SETDB2 upon coronavirus infection results in a decrease of the repressive trimethylation of histone 3 lysine 9 (H3K9me3) at NFkB binding sites on inflammatory gene promoters, effectively increasing inflammation. Mφs isolated from mice with a myeloid-specific deletion of SETDB2 displayed increased pathologic inflammation following coronavirus infection. Further, IFNβ directly regulates SETDB2 in Mφs via JaK1/STAT3 signaling, as blockade of this pathway altered SETDB2 and the inflammatory response to coronavirus infection. Importantly, we also found that loss of SETDB2 mediates an increased inflammatory response in diabetic Mϕs in response to coronavirus infection. Treatment of coronavirus-infected diabetic Mφs with IFNβ reversed the inflammatory cytokine production via up-regulation of SETDB2/H3K9me3 on inflammatory gene promoters. Together, these results describe a potential mechanism for the increased Mφ-mediated cytokine storm in patients with T2D in response to COVID-19 and suggest that therapeutic targeting of the IFNβ/SETDB2 axis in T2D patients may decrease pathologic inflammation associated with COVID-19.
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Zhu W, Chen P, Hu L, Deng L. Serum levels of SIRT3 and other inflammatory factors are associated with clinical outcomes and prognosis in severe community-acquired pneumonia in adults: A prospective study. Medicine (Baltimore) 2021; 100:e26721. [PMID: 34397875 PMCID: PMC8360436 DOI: 10.1097/md.0000000000026721] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/30/2021] [Indexed: 12/26/2022] Open
Abstract
The aim of this study was to investigate clinical significance of SIRT3 in severe community-acquired pneumonia (CAP) patients.This prospective observational research enrolled a total of 114 severe CAP patients who went to our hospital during January 2018 to December 2019. Serum SIRT3 and IL-1β, IL-6, and tumor necrosis factor (TNF)-α levels were determined using the enzyme-linked immunosorbent assay (ELISA) method. Demographic data, including age, sex, and body mass index (BMI), as well as clinical symptoms, SOFA and SMART-COP scores were collected. The routine blood test was conducted for all patients and white blood cell (WBC) amount, as well as serum levels of C-reactive protein (CRP), D-Dimer, and procalcitonin (PCT).Among all patients, 55 cases died during the study period. The serum levels of CRP, PCT, IL-1β, and IL-6, as well as SOFA and SMART-COP scores were markedly higher in deceased patients than in the survival patients. The expression of SIRT3 was significantly decreased in severe CAP patients compared with the healthy, especially in the deceased patients. SIRT3 levels were negatively correlated with levels of CRP, PCT, IL-1β, and IL-6. Patients with SIRT3 low expression showed remarkably higher expression of CRP, PCT, IL-1β, and IL-6, as well as high SMART-COP scores, higher 1-month mortality rate, and shorter survival. Only SIRT3 and IL-1β were independent risk factors for 1-month mortality in severe CAP patients.Lower serum SIRT3 level predicts poor clinical outcomes and prognosis in severe CAP patients.
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Affiliation(s)
- Wei Zhu
- Department of Critical Care, Tianyou Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, China
| | - Ping Chen
- Department of Critical Care, Tianyou Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, China
| | - Liangzi Hu
- Department of General practice, Tianyou Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, China
| | - Li Deng
- Department of Pharmacy, Tianyou Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, China
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Role of Histone Deacetylases in Monocyte Function in Health and Chronic Inflammatory Diseases. Rev Physiol Biochem Pharmacol 2021; 180:1-47. [PMID: 33974124 DOI: 10.1007/112_2021_59] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Histone deacetylases (HDACs) are a family of 18 members that participate in the epigenetic regulation of gene expression. In addition to histones, some HDACs also deacetylate transcription factors and specific cytoplasmic proteins.Monocytes, as part of the innate immune system, maintain tissue homeostasis and help fight infections and cancer. In these cells, HDACs are involved in multiple processes including proliferation, migration, differentiation, inflammatory response, infections, and tumorigenesis. Here, a systematic description of the role that most HDACs play in these functions is reviewed. Specifically, some HDACs induce a pro-inflammatory response and play major roles in host defense. Conversely, other HDACs reprogram monocytes and macrophages towards an immunosuppressive phenotype. The right balance between both types helps monocytes to respond correctly to the different physiological/pathological stimuli. However, aberrant expressions or activities of specific HDACs are associated with autoimmune diseases along with other chronic inflammatory diseases, infections, or cancer.This paper critically reviews the interesting and extensive knowledge regarding the role of some HDACs in these pathologies. It also shows that as yet, very little progress has been made toward the goal of finding effective HDAC-targeted therapies. However, given their obvious potential, we conclude that it is worth the effort to develop monocyte-specific drugs that selectively target HDAC subtypes with the aim of finding effective treatments for diseases in which our innate immune system is involved.
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Protective effects of sirtuin 3 on titanium particle-induced osteogenic inhibition by regulating the NLRP3 inflammasome via the GSK-3β/β-catenin signalling pathway. Bioact Mater 2021; 6:3343-3357. [PMID: 33817415 PMCID: PMC8005659 DOI: 10.1016/j.bioactmat.2021.02.039] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/23/2021] [Accepted: 02/26/2021] [Indexed: 02/06/2023] Open
Abstract
Periprosthetic osteolysis (PPO) remains the key factor in implant failure and subsequent revision surgery and is mainly triggered by wear particles. Previous studies have shown that inhibition of osteoblastic differentiation is the most widespread incident affecting the interface of trabecular and loosening prostheses. Additionally, the NLRP3 inflammasome is activated by prosthetic particles. Sirtuin3, an NAD+-dependent deacetylase of mitochondria, regulates the function of mitochondria in diverse activities. However, whether SIRT3 can mitigate wear debris-induced osteolysis by inhibiting the NLRP3 inflammasome and enhancing osteogenesis has not been previously reported. Therefore, we investigated the role of SIRT3 during the process of titanium (Ti) particle-induced osteolysis. We revealed that upregulated SIRT3 dramatically attenuated Ti particle-induced osteogenic inhibition through suppression of the NLRP3 inflammasome and improvement of osteogenesis in vivo and in vitro. Moreover, we found that SIRT3 interference in the process of Ti particle-induced osteolysis relied on the GSK-3β/β-catenin signalling pathway. Collectively, these findings indicated that SIRT3 may serve as a rational new treatment against debris-induced PPO by deacetylase-dependent inflammasome attenuation. Effect of SIRT3 on rescued wear particles-induced osteogenic inhibition. Effect of SIRT3 on inhibited the activation of pyroptosis-related NLRP3 inflammasome. Effect of SIRT3 on mitigated periprosthetic osteolysis via GSK-3β/β-catenin signaling.
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Song S, Ding Y, Dai GL, Zhang Y, Xu MT, Shen JR, Chen TT, Chen Y, Meng GL. Sirtuin 3 deficiency exacerbates diabetic cardiomyopathy via necroptosis enhancement and NLRP3 activation. Acta Pharmacol Sin 2021; 42:230-241. [PMID: 32770173 DOI: 10.1038/s41401-020-0490-7] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 07/21/2020] [Indexed: 12/21/2022] Open
Abstract
Sirtuin 3 (SIRT3) is a potential therapeutic target for cardiovascular, metabolic, and other aging-related diseases. In this study, we investigated the role of SIRT3 in diabetic cardiomyopathy (DCM). Mice were injected with streptozotocin (STZ, 60 mg/kg, ip) to induce diabetes mellitus. Our proteomics analysis revealed that SIRT3 expression in the myocardium of diabetic mice was lower than that of control mice, as subsequently confirmed by real-time PCR and Western blotting. To explore the role of SIRT3 in DCM, SIRT3-knockout mice and 129S1/SvImJ wild-type mice were injected with STZ. We found that diabetic mice with SIRT3 deficiency exhibited aggravated cardiac dysfunction, increased lactate dehydrogenase (LDH) level in the serum, decreased adenosine triphosphate (ATP) level in the myocardium, exacerbated myocardial injury, and promoted myocardial reactive oxygen species (ROS) accumulation. Neonatal rat cardiomyocytes were transfected with SIRT3 siRNA, then exposed to high glucose (HG, 25.5 mM). We found that downregulation of SIRT3 further increased LDH release, decreased ATP level, suppressed the mitochondrial membrane potential, and elevated oxidative stress in HG-treated cardiomyocytes. SIRT3 deficiency further raised expression of necroptosis-related proteins including receptor-interacting protein kinase 1 (RIPK1), RIPK3, and cleaved caspase 3, and upregulated the expression of inflammation-related proteins including NLR family pyrin domain-containing protein 3 (NLRP3), caspase 1 p20, and interleukin-1β both in vitro and in vivo. Collectively, SIRT3 deficiency aggravated hyperglycemia-induced mitochondrial damage, increased ROS accumulation, promoted necroptosis, possibly activated the NLRP3 inflammasome, and ultimately exacerbated DCM in the mice. These results suggest that SIRT3 can be a molecular intervention target for the prevention and treatment of DCM.
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Yaseen H, Khamaisi M. Skin well-being in diabetes: Role of macrophages. Cell Immunol 2020; 356:104154. [PMID: 32795665 DOI: 10.1016/j.cellimm.2020.104154] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 06/11/2020] [Accepted: 06/11/2020] [Indexed: 12/14/2022]
Abstract
Macrophages are key players in wound healing- along with mediating the acute inflammatory response, macrophages activate cutaneous epithelial cells and promote tissue repair. Diabetes complications, including diabetic chronic wounds, are accompanied by persistent inflammation and macrophage malfunction. Several studies indicate that hyperglycemia induces various alterations that affect macrophage function in wound healing including epigenetic changes, imbalance between pro- and anti-inflammatory modulators, and insensitivity to proliferative stimuli. In this review, we briefly summarize recent studies regarding those alterations and their implications on skin well-being in diabetes.
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Affiliation(s)
- Hiba Yaseen
- Department of Medicine D, Rambam Health Care Campus and Ruth & Bruce Rappaport Faculty of Medicine, Technion-IIT Haifa, Israel; Clinical Research Institute, Rambam Health Care Campus, Haifa, Israel
| | - Mogher Khamaisi
- Department of Medicine D, Rambam Health Care Campus and Ruth & Bruce Rappaport Faculty of Medicine, Technion-IIT Haifa, Israel; Clinical Research Institute, Rambam Health Care Campus, Haifa, Israel.
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Prabhakar PK, Singh K, Kabra D, Gupta J. Natural SIRT1 modifiers as promising therapeutic agents for improving diabetic wound healing. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2020; 76:153252. [PMID: 32505916 DOI: 10.1016/j.phymed.2020.153252] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/14/2020] [Accepted: 05/23/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The occurrence of chronic wounds, account for significant suffering of diabetic people, together with increasing healthcare burden. The chronic wounds associated with diabetes do not undergo the normal healing process rather stagnate into chronic proinflammatory phase as well as declined fibroblast function and impaired cell migration. HYPOTHESIS SIRT1, which is the most studied isoform of the sirtuin family in mammals, has now emerged as a crucial target for improving diabetic wound healing. It is an NAD+ dependent deacetylase, originally characterized to deacetylate histone proteins leading to heterochromatin formation and gene silencing. It is now known to regulate a number of cellular processes like cell proliferation, division, senescence, apoptosis, DNA repair, and metabolism. METHODOLOGY The retrieval of potentially relevant studies was done by systematically searching of three databases (Google Scholar, Web of science and PubMed) in December 2019. The keywords used as search terms were related to SIRT1 and wound healing. The systematic search retrieved 649 papers that were potentially relevant and after selection procedure, 73 studies were included this review and discussed below. RESULTS Many SIRT1 activating compounds (SACs) were found protective and improve diabetic wound healing through regulation of inflammation, cell migration, oxidative stress response and formation of granulation tissue at the wound site. CONCLUSIONS However, contradictory reports describe the opposing role of SACs on the regulation of cell migration and cancer incidence. SACs are therefore subjected to intense research for understanding the mechanisms responsible for controlling cell migration and therefore possess prospective to enter the clinical arena in the foreseeable future.
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Affiliation(s)
- Pranav Kumar Prabhakar
- Department of Medical Laboratory Sciences, Lovely Professional University Punjab, India 144411
| | - Karmveer Singh
- Department of Dermatology and Allergic Diseases, Ulm University, Ulm, Germany
| | - Dhiraj Kabra
- Biological Research Pharmacology Department, Sun Pharma Advanced Research Company Limited, Vadodara, Gujarat, India, 390010
| | - Jeena Gupta
- Department of Biochemistry, Lovely Professional University Punjab, India 144411.
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Wu T, Jiao L, Bai H, Hu X, Wang M, Zhao Z, Xue H, Ying B. The dominant model analysis of Sirt3 genetic variants is associated with susceptibility to tuberculosis in a Chinese Han population. Mol Genet Genomics 2020; 295:1155-1162. [PMID: 32462533 DOI: 10.1007/s00438-020-01685-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 05/06/2020] [Indexed: 02/05/2023]
Abstract
Tuberculosis (TB) is a complex infectious disease caused by the pathogen Mycobacterium tuberculosis (Mtb) which has coexisted with humanity since the Neolithic. Recent research indicated that SIRT3 plays a pivotal role in promoting the antimycobacterial response of mitochondria and autophagy during Mtb infection. A case-control study comprised 900 TB patients and 1534 healthy controls who were retrospectively enrolled to assess the association between Sirt3 gene polymorphisms and TB susceptibility. In total, five single-nucleotide polymorphisms (SNPs) (rs511744, rs3782118, rs7104764, rs536715 and rs28365927) were selected through database 1000 Genomes Project and offline software Haploview V4.2 and genotyped by a customized 2 × 48-Plex SNPscan™ Kit. Our results suggested that the minor allele genotypes (A carriers) of rs3782118 confers the decreased risk of TB susceptibility (pBonferroni = 0.032), and a similar but more significant effect was observed under the dominant model analysis (OR 0.787, 95% CI 0.666-0.931, pBonferroni = 0.026). Haplotype analysis showed that haplotype AGAAG (rs511744/rs3782118/rs7104764/rs536715/rs28365927) was associated with an increased risk of TB (p = 0.023, OR 1.159, 95% CI 1.019-1.317). In stratification analysis, we found that rs3782118 was associated with decreased risk of TB in female subgroup under the dominant model analysis (pBonferroni = 0.016, OR 0.678, 95% CI 0.523-0.878). Moreover, functional annotations for three loci (rs7930823, rs3782116 and rs3782115) which are strongly linked to rs3782118 indicated that they may be responsible for the changes in some motifs. In conclusion, our study suggested that the SNP rs3782118 was associated with a lower susceptibility to TB, especially under the dominant model analysis and that the haplotype AGAAG (containing the major allele G of rs3782118) was associated with an increased risk of TB. Further independent cohort studies are necessary to validate the protective effect of Sirt3 genetic variants on the risk of TB.
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Affiliation(s)
- Tao Wu
- Department of Laboratory Medicine and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, No. 37 Guoxue Alley, Chengdu, 610041, Sichuan, China.,Department of Clinical Laboratory Medicine, People's Hospital of Ningxia Hui Autonomous Region (First Affiliated Hospital of Northwest Minzu University), Yinchuan, Ningxia Hui Autonomous Region, China
| | - Lin Jiao
- Department of Laboratory Medicine and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, No. 37 Guoxue Alley, Chengdu, 610041, Sichuan, China
| | - Hao Bai
- Department of Laboratory Medicine and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, No. 37 Guoxue Alley, Chengdu, 610041, Sichuan, China
| | - Xuejiao Hu
- Department of Laboratory Medicine and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, No. 37 Guoxue Alley, Chengdu, 610041, Sichuan, China.,Division of Laboratory Medicine, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Minjin Wang
- Department of Laboratory Medicine and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, No. 37 Guoxue Alley, Chengdu, 610041, Sichuan, China
| | - Zhenzhen Zhao
- Department of Laboratory Medicine and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, No. 37 Guoxue Alley, Chengdu, 610041, Sichuan, China
| | - Hui Xue
- Precision Medicine Key Laboratory of Sichuan Province and Precision Medicine Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
| | - Binwu Ying
- Department of Laboratory Medicine and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, No. 37 Guoxue Alley, Chengdu, 610041, Sichuan, China.
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Su S, Ndiaye M, Singh CK, Ahmad N. Mitochondrial Sirtuins in Skin and Skin Cancers. Photochem Photobiol 2020; 96:973-980. [PMID: 32124989 DOI: 10.1111/php.13254] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 02/20/2020] [Indexed: 12/21/2022]
Abstract
Mammalian sirtuins (SIRTs 1-7) are a family of NAD+-dependent deacetylases with distinct subcellular localization and biological functions that regulate various important cellular processes. Among these, SIRTs -3, -4 and -5 are located in the mitochondria and have been implicated in caloric restriction, oxidative stress, aging and various human diseases. Emerging evidence has found dysregulation of mitochondrial sirtuins in multiple dermatological conditions, including responses to ultraviolet radiation (UVR), suggesting their importance in maintaining skin health. In this review, we discuss the roles and implications of mitochondrial sirtuins in cutaneous cellular processes, and their emerging potential as a target for the management of skin diseases, including skin cancer. Among mitochondrial sirtuins, SIRT3 is the most studied and linked to multiple skin conditions and diseases (keratinocyte differentiation, wound healing, chronological aging, UVR and ozone response, systemic sclerosis, melanoma, basal cell carcinoma (BCC) and squamous cell carcinoma (SCC)). SIRT4 has been connected to keratinocyte differentiation, chronological aging, UVR response, alopecia, BCC and SCC. Further, SIRT5 has been associated with keratinocyte differentiation, melanoma, BCC and SCC. Overall, while there is compelling evidence for the involvement of mitochondrial sirtuins in skin, additional detailed studies are needed to understand their exact roles in skin and skin cancers.
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Affiliation(s)
- Shengqin Su
- Department of Dermatology, University of Wisconsin, Madison, WI
| | - Mary Ndiaye
- Department of Dermatology, University of Wisconsin, Madison, WI
| | - Chandra K Singh
- Department of Dermatology, University of Wisconsin, Madison, WI
| | - Nihal Ahmad
- Department of Dermatology, University of Wisconsin, Madison, WI.,William S. Middleton VA Medical Center, Madison, WI
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denDekker AD, Davis FM, Joshi AD, Wolf SJ, Allen R, Lipinski J, Nguyen B, Kirma J, Nycz D, Bermick J, Moore BB, Gudjonsson JE, Kunkel SL, Gallagher KA. TNF-α regulates diabetic macrophage function through the histone acetyltransferase MOF. JCI Insight 2020; 5:132306. [PMID: 32069267 DOI: 10.1172/jci.insight.132306] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 02/12/2020] [Indexed: 12/18/2022] Open
Abstract
A critical component of wound healing is the transition from the inflammatory phase to the proliferation phase to initiate healing and remodeling of the wound. Macrophages are critical for the initiation and resolution of the inflammatory phase during wound repair. In diabetes, macrophages display a sustained inflammatory phenotype in late wound healing characterized by elevated production of inflammatory cytokines, such as TNF-α. Previous studies have shown that an altered epigenetic program directs diabetic macrophages toward a proinflammatory phenotype, contributing to a sustained inflammatory phase. Males absent on the first (MOF) is a histone acetyltransferase (HAT) that has been shown be a coactivator of TNF-α signaling and promote NF-κB-mediated gene transcription in prostate cancer cell lines. Based on MOF's role in TNF-α/NF-κB-mediated gene expression, we hypothesized that MOF influences macrophage-mediated inflammation during wound repair. We used myeloid-specific Mof-knockout (Lyz2Cre Moffl/fl) and diet-induced obese (DIO) mice to determine the function of MOF in diabetic wound healing. MOF-deficient mice exhibited reduced inflammatory cytokine gene expression. Furthermore, we found that wound macrophages from DIO mice had elevated MOF levels and higher levels of acetylated histone H4K16, MOF's primary substrate of HAT activity, on the promoters of inflammatory genes. We further identified that MOF expression could be stimulated by TNF-α and that treatment with etanercept, an FDA-approved TNF-α inhibitor, reduced MOF levels and improved wound healing in DIO mice. This report is the first to our knowledge to define an important role for MOF in regulating macrophage-mediated inflammation in wound repair and identifies TNF-α inhibition as a potential therapy for the treatment of chronic inflammation in diabetic wounds.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Bethany B Moore
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | | | | | - Katherine A Gallagher
- Department of Surgery.,Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
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Yang S, Xu M, Meng G, Lu Y. SIRT3 deficiency delays diabetic skin wound healing via oxidative stress and necroptosis enhancement. J Cell Mol Med 2020; 24:4415-4427. [PMID: 32119761 PMCID: PMC7176871 DOI: 10.1111/jcmm.15100] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 02/02/2020] [Accepted: 02/12/2020] [Indexed: 02/06/2023] Open
Abstract
Sirtuin 3 (SIRT3) plays a vital role in several dermatological diseases. However, the role and detailed mechanism of SIRT3 in diabetic wound healing are unknown well yet. To explore possible involvement of SIRT3 and necroptosis in diabetic skin wound healing, SIRT3 knockout (KO) mice and 129S1/SvImJ wild‐type (WT) mice were injected with streptozotocin (STZ), and mice skin fibroblasts were exposed to high glucose (HG). It was found that SIRT3 expression decreased in the skin of diabetic patients. SIRT3 deficiency delayed healing rate, reduced blood supply and vascular endothelial growth factor expression, promoted superoxide production, increased malondialdehyde (MDA) levels, decreased total antioxidant capacity (T‐AOC), reduced superoxide dismutase (SOD) activity and aggravated ultrastructure disorder in skin wound of diabetic mice. SIRT3 deficiency inhibited mice skin fibroblasts migration with HG stimulation, which was restored by SIRT3 overexpression. SIRT3 deficiency also suppressed α‐smooth muscle actin (α‐SMA) expression, enhanced superoxide production but decreased mitochondrial membrane potential with HG stimulation after scratch. SIRT3 deficiency further elevated receptor‐interacting protein kinase 3 (RIPK3), RIPK1 and caspase 3 expression both in vitro and in vivo. Collectively, SIRT3 deficiency delayed skin wound healing in diabetes, the mechanism might be related to impaired mitochondria function, enhanced oxidative stress and increased necroptosis. This may provide a novel therapeutic target to accelerate diabetic skin wound healing.
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Affiliation(s)
- Shengju Yang
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Department of Dermatology, Affiliated Hospital of Nantong University, Nantong, China
| | - Mengting Xu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Guoliang Meng
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Yan Lu
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Wang Y, Li C, Gu J, Chen C, Duanmu J, Miao J, Yao W, Tao J, Tu M, Xiong B, Zhao L, Liu Z. Celastrol exerts anti-inflammatory effect in liver fibrosis via activation of AMPK-SIRT3 signalling. J Cell Mol Med 2019; 24:941-953. [PMID: 31742890 PMCID: PMC6933398 DOI: 10.1111/jcmm.14805] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/23/2019] [Accepted: 10/19/2019] [Indexed: 12/14/2022] Open
Abstract
Celastrol, a pentacyclic tritepene extracted from Tripterygium Wilfordi plant, showing potent liver protection effects on several liver-related diseases. However, the anti-inflammatory potential of celastrol in liver fibrosis and the detailed mechanisms remain uncovered. This study was to investigate the anti-inflammatory effect of celastrol in liver fibrosis and to further reveal mechanisms of celastrol-induced anti-inflammatory effects with a focus on AMPK-SIRT3 signalling. Celastrol showed potent ameliorative effects on liver fibrosis both in activated hepatic stellate cells (HSCs) and in fibrotic liver. Celastrol remarkably suppressed inflammation in vivo and inhibited the secretion of inflammatory factors in vitro. Interestingly, celastrol increased SIRT3 promoter activity and SIRT3 expression both in fibrotic liver and in activated HSCs. Furthermore, SIRT3 silencing evidently ameliorated the anti-inflammatory potential of celastrol. Besides, we found that celastrol could increase the AMPK phosphorylation. Further investigation showed that SIRT3 siRNA decreased SIRT3 expression but had no obvious effect on phosphorylation of AMPK. In addition, inhibition of AMPK by employing compound C (an AMPK inhibitor) or AMPK1α siRNA significantly suppressed SIRT3 expression, suggesting that AMPK was an up-stream protein of SIRT3 in liver fibrosis. We further found that depletion of AMPK significantly attenuated the inhibitory effect of celastrol on inflammation. Collectively, celastrol attenuated liver fibrosis mainly through inhibition of inflammation by activating AMPK-SIRT3 signalling, which makes celastrol be a potential candidate compound in treating or protecting against liver fibrosis.
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Affiliation(s)
- Yuqin Wang
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Chunling Li
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Jingya Gu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Chang Chen
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Jiaxin Duanmu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Jing Miao
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Wenjuan Yao
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Jinhua Tao
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Mengjue Tu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Biao Xiong
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Lingling Zhao
- Department of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, China
| | - Zhaoguo Liu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
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Zhou D, Jiang Y. Sirtuin 3 attenuates neuroinflammation-induced apoptosis in BV-2 microglia. Aging (Albany NY) 2019; 11:9075-9089. [PMID: 31631063 PMCID: PMC6834423 DOI: 10.18632/aging.102375] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 10/12/2019] [Indexed: 12/14/2022]
Abstract
In this study, we explored the upstream regulatory mechanisms underlying inflammation-induced mitochondrial dysfunction in microglial BV-2 cells. Our results demonstrate that Sirtuin 3 (Sirt3) expression was downregulated in response to LPS-induced neuroinflammation. In addition, overexpression of Sirt3 attenuated LPS-induced BV-2 cell death. Functional studies illustrated that Sirt3 overexpression promoted normal mitochondrial function and inhibited mitochondria-dependent apoptosis in LPS-treated BV-2 cells. At the molecular level, suppressor of ras val-2 (SRV2) promoted LPS-mediated mitochondrial damage by inducing mitochondrial fission. Sirt3 overexpression, which suppressed the transcription of SRV2 and thus suppressed mitochondrial fission, played an anti-apoptotic role in LPS-treated BV-2 cells. Furthermore, Sirt3 inhibited SRV2 expression via the Mst1-JNK pathway, and re-activation of this pathway abolished the protective effects of Sirt3 on mitochondrial damage and apoptosis. Taken together, our results indicate that Sirt3-induced, Mst1-JNK-SRV2 signaling pathway-dependent inhibition of mitochondrial fission protected against neuroinflammation-mediated cell damage in BV-2 microglia. Sirt3 might therefore be an effective treatment for neuroinflammation.
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Affiliation(s)
- Dingzhou Zhou
- Department of Neurosurgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yugang Jiang
- Department of Neurosurgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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