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Wolf SJ, Audu CO, Moon JY, Joshi AD, Melvin WJ, Barrett EC, Mangum K, de Jimenez GS, Rocco S, Buckley S, Ahmed Z, Wasikowski R, Kahlenberg JM, Tsoi LC, Gudjonsson JE, Gallagher KA. Diabetic Wound Keratinocytes Induce Macrophage JMJD3-Mediated Nlrp3 Expression via IL-1R Signaling. Diabetes 2024; 73:1462-1472. [PMID: 38869447 PMCID: PMC11333374 DOI: 10.2337/db23-0968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 05/29/2024] [Indexed: 06/14/2024]
Abstract
Macrophage (Mφ) plasticity is critical for normal wound repair; however, in type 2 diabetic wounds, Mφs persist in a low-grade inflammatory state that prevents the resolution of wound inflammation. Increased NLRP3 inflammasome activity has been shown in diabetic wound Mφs; however, the molecular mechanisms regulating NLRP3 expression and activity are unclear. Here, we identified that diabetic wound keratinocytes induce Nlrp3 gene expression in wound Mφs through IL-1 receptor-mediated signaling, resulting in enhanced inflammasome activation in the presence of pathogen-associated molecular patterns and damage-associated molecular patterns. We found that IL-1α is increased in human and murine wound diabetic keratinocytes compared with nondiabetic controls and directly induces Mφ Nlrp3 expression through IL-1 receptor signaling. Mechanistically, we report that the histone demethylase, JMJD3, is increased in wound Mφs late post-injury and is induced by IL-1α from diabetic wound keratinocytes, resulting in Nlrp3 transcriptional activation through an H3K27me3-mediated mechanism. Using genetically engineered mice deficient in JMJD3 in myeloid cells (Jmjd3f/flyz2Cre+), we demonstrate that JMJD3 controls Mφ-mediated Nlrp3 expression during diabetic wound healing. Thus, our data suggest a role for keratinocyte-mediated IL-1α/IL-1R signaling in driving enhanced NLRP3 inflammasome activity in wound Mφs. These data also highlight the importance of cell cross-talk in wound tissues and identify JMJD3 and the IL-1R signaling cascade as important upstream therapeutic targets for Mφ NLRP3 inflammasome hyperactivity in nonhealing diabetic wounds. ARTICLE HIGHLIGHTS
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Affiliation(s)
- Sonya J. Wolf
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Christopher O. Audu
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Jadie Y. Moon
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Amrita D. Joshi
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - William J. Melvin
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Emily C. Barrett
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Kevin Mangum
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | | | - Sabrina Rocco
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Sam Buckley
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Zara Ahmed
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | | | - J. Michelle Kahlenberg
- Department of Dermatology, University of Michigan, Ann Arbor, MI
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Lam C. Tsoi
- Department of Dermatology, University of Michigan, Ann Arbor, MI
| | | | - Katherine A. Gallagher
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI
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Cunha A, Perazzio S. Effects of immune exhaustion and senescence of innate immunity in autoimmune disorders. Braz J Med Biol Res 2024; 57:e13225. [PMID: 38896644 PMCID: PMC11186593 DOI: 10.1590/1414-431x2024e13225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 04/22/2024] [Indexed: 06/21/2024] Open
Abstract
Innate immune system activation is crucial in the inflammatory response, but uncontrolled activation can lead to autoimmune diseases. Cellular exhaustion and senescence are two processes that contribute to innate immune tolerance breakdown. Exhausted immune cells are unable to respond adequately to specific antigens or stimuli, while senescent cells have impaired DNA replication and metabolic changes. These processes can impair immune system function and disrupt homeostasis, leading to the emergence of autoimmunity. However, the influence of innate immune exhaustion and senescence on autoimmune disorders is not well understood. This review aims to describe the current findings on the role of innate immune exhaustion and senescence in autoimmunity, focusing on the cellular and molecular changes involved in each process. Specifically, the article explores the markers and pathways associated with immune exhaustion, such as PD-1 and TIM-3, and senescence, including Β-galactosidase (β-GAL), lamin B1, and p16ink4a, and their impact on autoimmune diseases, namely type 1 diabetes, rheumatoid arthritis, systemic lupus erythematosus, and immune-mediated myopathies. Understanding the mechanisms underlying innate immune exhaustion and senescence in autoimmunity may provide insights for the development of novel therapeutic strategies.
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Affiliation(s)
- A.L.S. Cunha
- Divisão de Reumatologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil
| | - S.F. Perazzio
- Divisão de Reumatologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil
- Divisão de Imunologia, Laboratório Fleury, São Paulo, SP, Brasil
- Laboratório Central, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
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Hasan Maleki M, Siri M, Jafarabadi A, Rajabi M, Amirhossein Mazhari S, Noori Z, Koohpeyma F, Dehghanian A, Esmaeili N, Aryanian Z, Dastghaib S. Boosting wound healing in diabetic rats: The role of nicotinamide riboside and resveratrol in UPR modulation and pyroptosis inhibition. Int Immunopharmacol 2024; 132:112013. [PMID: 38583241 DOI: 10.1016/j.intimp.2024.112013] [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: 03/17/2024] [Revised: 04/02/2024] [Accepted: 04/02/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Diabetes-related skin ulcers provide a substantial therapeutic issue, sometimes leading to amputation, needing immediate practical treatments for efficient wound care. While the exact mechanisms are unknown, pyroptosis and deregulation of the unfolded protein response (UPR) are known to exacerbate inflammation. Nicotinamide Riboside (NR) and Resveratrol (RV), which are known for their Nicotinamide adenine dinucleotide (NAD+) boosting and anti-inflammatory properties, are being studied as potential treatments. The purpose of this study was to shed light on the underlying molecular mechanisms and explore the medical application of NR and RV in diabetic wound healing. METHODS 54 male Sprague-Dawley rats divided into control, diabetic (DM), Gel Base, DM-NR, DM-RV, and DM-NR + RV. Rats were orally administered 50 mg/kg/day of RV and 300 mg/kg/day of NR for 5 weeks. Following diabetes induction, their wounds were topically treated with 5 % NR and RV gel for 15 days. The wound closure rate, body weight, and serum lipid profiles were examined. Gene expression study evaluated UPR and pyroptosis-related genes (BIP, PERK, ATF6, IRE1α, sXBP1, CHOP, NLRP3, caspase-1, NFκB, and IL1-β) in wound tissues, alongside histological assessment of cellular changes. RESULTS NR and RV treatments greatly enhanced wound healing. Molecular investigation demonstrated UPR and pyroptosis marker modifications, suggesting UPR balance and anti-inflammatory effects. Histological investigation demonstrated decreased inflammation and increased re-epithelialization. The combination of NR and RV therapy had better results than either treatment alone. CONCLUSION This study shows that NR and RV have therapeutic promise in treating diabetic wounds by addressing UPR dysregulation, and pyroptosis. The combination therapy is a viable strategy to improving the healing process, providing a multimodal intervention for diabetic skin ulcers. These findings pave the way for additional investigation and possible therapeutic applications, giving hope for better outcomes in diabetic wound care.
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Affiliation(s)
- Mohammad Hasan Maleki
- Autoimmune Bullous Diseases Research Center, Tehran University of Medical Sciences, Tehran, Iran; Endocrinology and Metabolism Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - Morvarid Siri
- Autoimmune Bullous Diseases Research Center, Tehran University of Medical Sciences, Tehran, Iran; Endocrinology and Metabolism Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - Amirhossein Jafarabadi
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - Mahsa Rajabi
- Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Zahra Noori
- Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farhad Koohpeyma
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - Amirreza Dehghanian
- Trauma Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Molecular Pathology and Cytogenetics Division, Department of Pathology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nafiseh Esmaeili
- Autoimmune Bullous Diseases Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Dermatology, Razi Hospital, School of Medicine, Tehran University of Medical Sciences, Iran
| | - Zeinab Aryanian
- Autoimmune Bullous Diseases Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Dermatology, Babol University of Medical Sciences, Babol, Iran.
| | - Sanaz Dastghaib
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Science, Shiraz, Iran; Autophagy Research Centre, Shiraz University of Medical Sciences, Shiraz, Iran.
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Zhang G, Samarawickrama PN, Gui L, Ma Y, Cao M, Zhu H, Li W, Yang H, Li K, Yang Y, Zhu E, Li W, He Y. Revolutionizing Diabetic Foot Ulcer Care: The Senotherapeutic Approach. Aging Dis 2024:AD.2024.0065. [PMID: 38739931 DOI: 10.14336/ad.2024.0065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 04/16/2024] [Indexed: 05/16/2024] Open
Abstract
Diabetic foot ulcers (DFUs) are a prevalent and profoundly debilitating complication that afflicts individuals with diabetes mellitus (DM). These ulcers are associated with substantial morbidity, recurrence rates, disability, and mortality, imposing substantial economic, psychological, and medical burdens. Timely detection and intervention can mitigate the morbidity and disparities linked to DFU. Nevertheless, current therapeutic approaches for DFU continue to grapple with multifaceted limitations. A growing body of evidence emphasizes the crucial role of cellular senescence in the pathogenesis of chronic wounds. Interventions that try to delay cellular senescence, eliminate senescent cells (SnCs), or suppress the senescence-associated secretory phenotype (SASP) have shown promise for helping chronic wounds to heal. In this context, targeting cellular senescence emerges as a novel therapeutic strategy for DFU. In this comprehensive review, we look at the pathology and treatment of DFU in a systematic way. We also explain the growing importance of investigating SnCs in DFU and highlight the great potential of senotherapeutics that target SnCs in DFU treatment. The development of efficacious and safe senotherapeutics represents a pioneering therapeutic approach aimed at enhancing the quality of life for individuals affected by DFU.
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Affiliation(s)
- Guiqin Zhang
- Department of Endocrinology, the Second Affiliated Hospital of Dali University (the Third People's Hospital of Yunnan Province), Kunming, Yunnan 650011, China
| | - Priyadarshani Nadeeshika Samarawickrama
- Key Laboratory of Genetic Evolution & Animal Models, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
- Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Li Gui
- Department of Endocrinology, the Second Affiliated Hospital of Dali University (the Third People's Hospital of Yunnan Province), Kunming, Yunnan 650011, China
| | - Yuan Ma
- Department of Orthopedics, the Third People's Hospital of Yunnan Province, Kunming, Yunnan 650011, China
| | - Mei Cao
- Department of Endocrinology, the Second Affiliated Hospital of Dali University (the Third People's Hospital of Yunnan Province), Kunming, Yunnan 650011, China
| | - Hong Zhu
- Department of Endocrinology, the Second Affiliated Hospital of Dali University (the Third People's Hospital of Yunnan Province), Kunming, Yunnan 650011, China
| | - Wei Li
- Department of Endocrinology, the Second Affiliated Hospital of Dali University (the Third People's Hospital of Yunnan Province), Kunming, Yunnan 650011, China
| | - Honglin Yang
- Department of Orthopedics, the Third People's Hospital of Yunnan Province, Kunming, Yunnan 650011, China
| | - Kecheng Li
- Department of Orthopedics, the Third People's Hospital of Yunnan Province, Kunming, Yunnan 650011, China
| | - Yang Yang
- Department of Biochemistry & Structural Biology, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Enfang Zhu
- Department of Endocrinology, the Second Affiliated Hospital of Dali University (the Third People's Hospital of Yunnan Province), Kunming, Yunnan 650011, China
| | - Wen Li
- Department of Endocrinology, the Second Affiliated Hospital of Dali University (the Third People's Hospital of Yunnan Province), Kunming, Yunnan 650011, China
| | - Yonghan He
- Key Laboratory of Genetic Evolution & Animal Models, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
- Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
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5
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Xia G, Dohi T, Abdelhakim M, Tosa M, Ogawa R. The effects of systemic diseases, genetic disorders and lifestyle on keloids. Int Wound J 2024; 21:e14865. [PMID: 38584345 PMCID: PMC10999570 DOI: 10.1111/iwj.14865] [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: 08/27/2023] [Revised: 03/18/2024] [Accepted: 03/20/2024] [Indexed: 04/09/2024] Open
Abstract
Keloid are a fibroproliferative disorder caused by abnormal healing of skin, specifically reticular dermis, when subjected to pathological or inflammatory scars demonstrating redness, elevation above the skin surface, extension beyond the original wound margins and resulting in an unappealing cosmetic appearance. The severity of keloids and risk of developing keloids scars are subjected to elevation by other contributing factors such as systemic diseases, general health conditions, genetic disorders, lifestyle and natural environment. In particular, recently, daily physical work interpreted into mechanical force as well as the interplay between mechanical factors such as stress, strain and stiffness have been reported to strongly modulate the cellular behaviour of keloid formation, affect their location and shape in keloids. Herein, we review the extensive literature on the effects of these factors on keloids and the contributing predisposing mechanisms. Early understanding of these participating factors and their effects in developing keloids may raise the patient awareness in preventing keloids incidence and controlling its severity. Moreover, further studies into their association with keloids as well as considering strategies to control such factors may help clinicians to prevent keloids and widen the therapeutic options.
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Affiliation(s)
- Guangpeng Xia
- Department of Plastic, Reconstructive and Aesthetic SurgeryNippon Medical SchoolTokyoJapan
| | - Teruyuki Dohi
- Department of Plastic, Reconstructive and Aesthetic SurgeryNippon Medical SchoolTokyoJapan
| | - Mohamed Abdelhakim
- Department of Plastic, Reconstructive and Aesthetic SurgeryNippon Medical SchoolTokyoJapan
| | - Mamiko Tosa
- Department of Plastic, Reconstructive and Aesthetic SurgeryNippon Medical SchoolTokyoJapan
| | - Rei Ogawa
- Department of Plastic, Reconstructive and Aesthetic SurgeryNippon Medical SchoolTokyoJapan
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6
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Al Mamun A, Shao C, Geng P, Wang S, Xiao J. The Mechanism of Pyroptosis and Its Application Prospect in Diabetic Wound Healing. J Inflamm Res 2024; 17:1481-1501. [PMID: 38463193 PMCID: PMC10924950 DOI: 10.2147/jir.s448693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/13/2024] [Indexed: 03/12/2024] Open
Abstract
Pyroptosis defines a form of pro-inflammatory-dependent programmed cell death triggered by gasdermin proteins, which creates cytoplasmic pores and promotes the activation and accumulation of immune cells by releasing several pro-inflammatory mediators and immunogenic substances upon cell rupture. Pyroptosis comprises canonical (mediated by Caspase-1) and non-canonical (mediated by Caspase-4/5/11) molecular signaling pathways. Numerous studies have explored the contributory roles of inflammasome and pyroptosis in the progression of multiple pathological conditions such as tumors, nerve injury, inflammatory diseases and metabolic disorders. Accumulating evidence indicates that the activation of the NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome results in the activation of pyroptosis and inflammation. Current evidence suggests that pyroptosis-dependent cell death plays a progressive role in the development of diabetic complications including diabetic wound healing (DWH) and diabetic foot ulcers (DFUs). This review presents a brief overview of the molecular mechanisms underlying pyroptosis and addresses the current research on pyroptosis-dependent signaling pathways in the context of DWH. In this review, we also present some prospective therapeutic compounds/agents that can target pyroptotic signaling pathways, which may serve as new strategies for the effective treatment and management of diabetic wounds.
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Affiliation(s)
- Abdullah Al Mamun
- Central Laboratory of the Sixth Affiliated Hospital of Wenzhou Medical University, Lishui People's Hospital, Lishui City, Zhejiang, 323000, People's Republic of China
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
| | - Chuxiao Shao
- Central Laboratory of the Sixth Affiliated Hospital of Wenzhou Medical University, Lishui People's Hospital, Lishui City, Zhejiang, 323000, People's Republic of China
| | - Peiwu Geng
- Central Laboratory of the Sixth Affiliated Hospital of Wenzhou Medical University, Lishui People's Hospital, Lishui City, Zhejiang, 323000, People's Republic of China
| | - Shuanghu Wang
- Central Laboratory of the Sixth Affiliated Hospital of Wenzhou Medical University, Lishui People's Hospital, Lishui City, Zhejiang, 323000, People's Republic of China
| | - Jian Xiao
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
- Department of Wound Healing, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
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7
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Shen J, Chen H, Dai J. Genome-wide screening of m6A profiling of cutaneous wound healing in diabetic mice. Mol Biol Rep 2024; 51:175. [PMID: 38252224 DOI: 10.1007/s11033-023-09089-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 11/29/2023] [Indexed: 01/23/2024]
Abstract
OBJECTIVE Impaired wound healing in diabetes mellitus (DM) is a major health burden on patients, their families, and society. The present study aimed to systematically profile the m6A modification landscape in cutaneous wounds in a diabetic mouse model. APPROACH Diabetes was induced in mice through a single intraperitoneal injection of streptozotocin (STZ); a single intraperitoneal injection of PBS was made in control mice for comparisons. Both groups then received an 8-mm diameter, full-thickness dorsal body wound with a biopsy punch. Five days after wound surgery, western blot analysis of harvested wound tissues from both groups was used to assess the expression of m6A-related enzymes. Genome-wide profiling of m6A-tagged transcripts was performed through MeRIP-seq and RNA-seq. RESULTS ALKBH5, an m6A eraser, was significantly upregulated, while METTL3, METTL14, and WTAP, m6A writers, were markedly downregulated in the diabetic wounds. Additionally, a total of 1335 m6A peaks were differentially expressed in MeRIP-seq and RNA-seq analyses, with 558 upregulated and 777 downregulated peaks. Finally, there was hypomethylated and hypermethylated differentiation at the gene and transcript levels. INNOVATION The present study was the first to reveal the m6A landscape in diabetic wounds in an animal model. CONCLUSION This study, by deeply analyzing the role of m6A modifications in diabetic wound healing, provides new insights and understanding into the molecular mechanisms of diabetic wound healing. Future research could further explore how m6A modifications regulate the wound healing process, thereby offering new potential targets for the treatment of diabetic wounds.
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Affiliation(s)
- Junjie Shen
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, JiaoTong University, Shanghai, China
| | - Hua Chen
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, JiaoTong University, Shanghai, China.
| | - Jiezhi Dai
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, JiaoTong University, Shanghai, China.
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8
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Badr G, El-Hossary FM, Lasheen FEDM, Negm NZ, Khalaf M, Salah M, Sayed LH, Abdel-Maksoud MA, Elminshawy A. Cold atmospheric plasma induces the curing mechanism of diabetic wounds by regulating the oxidative stress mediators iNOS and NO, the pyroptotic mediators NLRP-3, Caspase-1 and IL-1β and the angiogenesis mediators VEGF and Ang-1. Biomed Pharmacother 2023; 169:115934. [PMID: 38000357 DOI: 10.1016/j.biopha.2023.115934] [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: 09/01/2023] [Revised: 11/12/2023] [Accepted: 11/21/2023] [Indexed: 11/26/2023] Open
Abstract
It has been demonstrated that cold atmospheric plasma (CAP) accelerates the wound healing process, however the underlying molecular pathways behind this effect remain unclear. Thus, the goal of the proposed investigation is to elucidate the therapeutic advantages of CAP on angiogenesis, pyroptotic, oxidative stress, and inflammatory mediators during the wound-healing mechanisms associated with diabetes. Intraperitoneal administration of streptozotocin (STZ, 60 mg/Kg) of body weight was used to induce type-1 diabetes. Seventy-five male mice were randomized into 3 groups: the control non-diabetic group, the diabetic group that was not treated, and the diabetic group that was treated with CAP. The key mediators of pyroptosis and its impact on the slow healing process of diabetic wounds were examined using histological investigations employing H&E staining, immunohistochemistry, ELISA, and Western blotting analysis. Angiogenesis proteins (VEGF, Ang-1, and HO-1) showed a significant decline in expression concentrations in the diabetic wounds, indicating that diabetic animals' wounds were less likely to heal. Furthermore, compared to the controls, the major mediators of pyroptosis (NLRP-3, IL-1β, and caspase-1), oxidative stress (iNOS and NO), and inflammation (TNF-α and IL-6) have higher expression levels in the diabetic wounds. These factors substantially impede the healing mechanism of diabetic wounds. Interestingly, our results disclosed the therapeutic impacts of CAP treatment in the healing process of diabetic wounds via significantly regulating the expression levels of angiogenesis, pyroptosis, oxidative stress and pro-inflammatory mediators. Our findings demonstrated the curative likelihood of CAP and the underlying mechanisms for enhancing the healing process of diabetic wounds.
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Affiliation(s)
- Gamal Badr
- Zoology Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt.
| | - Fayez M El-Hossary
- Physics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt
| | | | - Niemat Z Negm
- Physics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt
| | - Mohamed Khalaf
- Physics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt
| | - Mohamed Salah
- Botany and Microbiology Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt; Institut Cochin, Université de Paris, INSERM, CNRS, 75014 Paris, France
| | - Leila H Sayed
- Zoology Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt
| | - Mostafa A Abdel-Maksoud
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmed Elminshawy
- Deptartment of Cardiothoracic Surgery, Faculty of Medicine, Assiut University, Assiut, Egypt
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Teh HX, Phang SJ, Looi ML, Kuppusamy UR, Arumugam B. Molecular pathways of NF-ĸB and NLRP3 inflammasome as potential targets in the treatment of inflammation in diabetic wounds: A review. Life Sci 2023; 334:122228. [PMID: 37922981 DOI: 10.1016/j.lfs.2023.122228] [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: 06/15/2023] [Revised: 10/23/2023] [Accepted: 10/29/2023] [Indexed: 11/07/2023]
Abstract
Diabetic wounds are slow healing wounds characterized by disordered healing processes and frequently take longer than three months to heal. One of the defining characteristics of impaired diabetic wound healing is an abnormal and unresolved inflammatory response, which is primarily brought on by abnormal macrophage innate immune signaling activation. The persistent inflammatory state in a diabetic wound may be attributed to inflammatory pathways such as nuclear factor kappa B (NF-ĸB) and nod-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome, which have long been associated with inflammatory diseases. Despite the available treatments for diabetic foot ulcers (DFUs) that include debridement, growth factor therapy, and topical anti-bacterial agents, successful wound healing is still hampered. Further understanding of the molecular mechanism of these pathways could be useful in designing potential therapeutic targets for diabetic wound healing. This review provides an update and novel insights into the roles of NF-ĸB and NLRP3 pathways in the molecular mechanism of diabetic wound inflammation and their potential as therapeutic targets in diabetic wound healing.
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Affiliation(s)
- Huey Xhin Teh
- Department of Biomedical Science, Faculty of Medicine, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Shou Jin Phang
- Department of Biomedical Science, Faculty of Medicine, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Mee Lee Looi
- Centre for Future Learning, Taylor's University Lakeside Campus, 47500 Subang Jaya, Selangor, Malaysia
| | - Umah Rani Kuppusamy
- Department of Biomedical Science, Faculty of Medicine, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Bavani Arumugam
- Department of Biomedical Science, Faculty of Medicine, Universiti Malaya, 50603 Kuala Lumpur, Malaysia.
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10
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Liu Y, Xia G, Chen Y, Xia H, Xu J, Guo L, Lin S, Liu Y. Purpurolide C-based microneedle promotes macrophage-mediated diabetic wound healing via inhibiting TLR4-MD2 dimerization and MYD88 phosphorylation. Acta Pharm Sin B 2023; 13:5060-5073. [PMID: 38045060 PMCID: PMC10692347 DOI: 10.1016/j.apsb.2023.05.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 12/05/2023] Open
Abstract
Delayed wound healing in diabetes is a global challenge, and the development of related drugs is a clinical problem to be solved. In this study, purpurolide C (PC), a small-molecule secondary metabolite of the endophytic fungus Penicillium purpurogenum, was found to promote diabetic wound healing. To investigate the key regulation targets of PC, in vitro RNA-seq, molecular docking calculations, TLR4-MD2 dimerization SDS-PAGE detection, and surface plasmon resonance (SPR) were performed, indicating that PC inhibited inflammatory macrophage activation by inhibiting both TLR4-MD2 dimerization and MYD88 phosphorylation. Tlr4 knockout in vivo attenuated the promotion effect of PC on wound healing. Furthermore, a delivery system consisting of macrophage liposome and GelMA-based microneedle patches combined with PC (PC@MLIP MN) was developed, which overcame the poor water solubility and weak skin permeability of PC, so that successfully punctured the skin and delivered PC to local tissues, and accurately regulated macrophage polarization in diabetic wound management. Overall, PC is an anti-inflammatory small molecule compound with a well-defined structure and dual-target regulation, and the PC@MLIP MN is a promising novel biomaterial for the management of diabetic wound.
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Affiliation(s)
- Yitong Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing 100050, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Guiyang Xia
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Yingyi Chen
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing 100050, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Huan Xia
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Junji Xu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing 100050, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Lijia Guo
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Sheng Lin
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Yi Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing 100050, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
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11
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Mohammad HMF, Eladl MA, Abdelmaogood AKK, Elshaer RE, Ghanam W, Elaskary A, Saleh MAK, Eltrawy AH, Ali SK, Moursi SMM, Bilasy SE, Zaitone SA, Alzlaiq WA, Atteya H. Protective Effect of Topiramate against Diabetic Retinopathy and Computational Approach Recognizing the Role of NLRP3/IL-1β/TNF-α Signaling. Biomedicines 2023; 11:3202. [PMID: 38137423 PMCID: PMC10741203 DOI: 10.3390/biomedicines11123202] [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: 08/25/2023] [Revised: 10/27/2023] [Accepted: 11/07/2023] [Indexed: 12/24/2023] Open
Abstract
The possible impact of topiramate against diabetic retinopathy (DREN) and its molecular mechanisms in relation to the nod-like receptor family pyrin domain containing 3 (NLRP3) inflammasome has not been studied before. Thus, in the present study, we aimed to utilize a computational approach to investigate the possible protective effect of topiramate on experimental DREN and explore its impact on NLRP3/interlukin-1β signaling and brain-derived neurotrophic factor (BDNF) expression. Male albino mice were distributed to four experimental groups and assigned the following categorizations: (i) saline, (ii) diabetic, (iii) diabetic + topiramate 10 mg/kg and (iv) diabetic + topiramate 30 mg/kg. We observed shrinkage of total retinal thickness and elevation in retinal glutamate, malondialdehyde, NLRP3 and interlukin-1β but decreased glutathione (GSH) levels in the diabetic mice. Additionally, retinal ultra-structures in the diabetic group showed abnormalities and vacuolations in the pigmented epithelium, the photoreceptor segment, the outer nuclear layer, the inner nuclear layer and the ganglion cell layer (GCL). Mice treated with topiramate 10 or 30 mg/kg showed downregulation in retinal malondialdehyde, NLRP3 and interlukin-1β levels; improvements in the retinal pathologies; enhanced immunostaining for BDNF and improved ultra-structures in different retinal layers. Overall, the current results suggest topiramate as a neuroprotective agent for DREN, and future studies are warranted to further elucidate the mechanism of its protective action.
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Affiliation(s)
- Hala M. F. Mohammad
- Department of Clinical Pharmacology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
- Center of Excellence in Molecular and Cellular Medicine (CEMCM), Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Mohamed Ahmed Eladl
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Asmaa K. K. Abdelmaogood
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Rabie E. Elshaer
- Pathology Department, Faculty of Medicine (Boys), Al-Azhar University, Cairo 11884, Egypt
| | - Walaa Ghanam
- Department of Pathology, Faculty of Medicine, Suez University, Suez 43533, Egypt
| | - Abdelhakeem Elaskary
- Ophthalmology Department, Al-Azher Asyut Faculty of Medicine for Men, Asyut 71524, Egypt (M.A.K.S.)
| | - Mohamed A. K. Saleh
- Ophthalmology Department, Al-Azher Asyut Faculty of Medicine for Men, Asyut 71524, Egypt (M.A.K.S.)
| | - Amira H. Eltrawy
- Department of Anatomy and Embryology, Faculty of Medicine, Alexandria University, Alexandria 21526, Egypt
- Department of Anatomy, Faculty of Medicine, University of Tabuk, Tabuk 71451, Saudi Arabia
| | - Sahar K. Ali
- Department of Clinical Pharmacology, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Suzan M. M. Moursi
- Medical Physiology Department, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Shymaa E. Bilasy
- College of Dental Medicine, California Northstate University, 9700 Taron Dr., Elk Grove, CA 95757, USA
- Department of Biochemistry, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Sawsan A. Zaitone
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Tabuk, Tabuk 71451, Saudi Arabia
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Wafa Ali Alzlaiq
- Department of Clinical Pharmacy, College of Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - Hayam Atteya
- Department of Pharmacy Practice and Clinical Pharmacy, Faculty of Pharmacy, Future University in Egypt, Cairo 11835, Egypt
- Department of Medical Pharmacology, Faculty of Medicine, Cairo University, Giza 12613, Egypt
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12
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Yao L, Huang C, Dai J. Staphylococcus aureus enhances osteoclast differentiation and bone resorption by stimulating the NLRP3 inflammasome pathway. Mol Biol Rep 2023; 50:9395-9403. [PMID: 37817024 DOI: 10.1007/s11033-023-08900-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 10/05/2023] [Indexed: 10/12/2023]
Abstract
BACKGROUND Osteomyelitis is one of the most challenging infectious diseases and is mainly caused by Staphylococcus aureus (S. aureus). In this study, we analyzed the effect of S. aureus on osteoclast differentiation and its possible molecular mechanism. METHODS We cultured RAW 264.7 cells with live S. aureus for 5 days. We assessed cell viability and the formation of resorption pits. We tested the NLRP3 inflammasome signaling pathways and measured the mRNA expression levels of osteoclastspecific genes, including TRAP, MMP9, cathepsin K, calcitonin receptor and ATP6V0d2. Furthermore, we analyzed the protein expression levels of the protein in the NF-κB and p38 MAPK signaling pathways to clarify the signaling pathways by which S. aureus promotes osteoclast differentiation. RESULTS Staphylococcus aureus induced NLRP3 inflammasome activation. S. aureus promoted bone resorption and enhanced the expression of osteoclastspecific genes, such as TRAP, MMP9, cathepsin K, calcitonin receptor and ATP6V0d2. MCC950 was used to inhibit NLRP3 inflammasome activity. Osteoclast differentiation and the expression of osteoclastspecific genes induced by S. aureus were inhibited by MCC950 pretreatment. The degradation of IκBα and phosphorylation of P65 were increased under the induction of S. aureus, but proteins in the p38 MAPK signaling pathway did not change significantly. CONCLUSION Staphylococcus aureus induces osteoclast differentiation and promotes bone resorption in vitro, and the NLRP3 inflammasome signaling pathway plays a significant role in this process. S. aureus-induced NLRP3 inflammasome activation was mainly dependent on the NF-κB signaling pathway during osteoclastogenesis.
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Affiliation(s)
- Ling Yao
- Department of Orthopedic Surgery, The Affiliated Hospital (GROUP) of Putian University, Putian, 351100, Fujian, China
| | - Chongming Huang
- Department of General Surgery, The First People's Hospital of Yibin, No. 65 Wenxing Road, Yibin, 644000, Sichuan, China.
| | - Jiezhi Dai
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600 YiShan Road, Shanghai, 200230, China.
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13
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Dong W, Peng Q, Liu Z, Xie Z, Guo X, Li Y, Chen C. Estrogen plays an important role by influencing the NLRP3 inflammasome. Biomed Pharmacother 2023; 167:115554. [PMID: 37738797 DOI: 10.1016/j.biopha.2023.115554] [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: 07/24/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 09/24/2023] Open
Abstract
The nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome is an important part of the natural immune system that plays an important role in many diseases. Estrogen is a sex hormone that plays an important role in controlling reproduction and regulates many physiological and pathological processes. Recent studies have indicated that estrogen is associated with disease progression. Estrogen can ameliorate some diseases (e. g, sepsis, mood disturbances, cerebral ischemia, some hepatopathy, Parkinson's disease, amyotrophic lateral sclerosis, inflammatory bowel disease, spinal cord injury, multiple sclerosis, myocardial ischemia/reperfusion injury, osteoarthritis, and renal fibrosis) by inhibiting the NLRP3 inflammasome. Estrogen can also promote the development of diseases (e.g., ovarian endometriosis, dry eye disease, and systemic lupus erythematosus) by upregulating the NLRP3 inflammasome. In addition, estrogen has a dual effect on the development of cancers and asthma. However, the mechanism of these effects is not summarized. This article reviewed the progress in understanding the effects of estrogen on the NLRP3 inflammasome and its mechanisms in recent years to provide a theoretical basis for an in-depth study.
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Affiliation(s)
- Wanglin Dong
- Institute of Nursing and Health, College of Nursing and Health, Henan University, Kaifeng, Henan, China
| | - Qianwen Peng
- Institute of Nursing and Health, College of Nursing and Health, Henan University, Kaifeng, Henan, China
| | - Zhuoxin Liu
- Clinical College of Medicine, Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Zhenxing Xie
- School of Basic Medical Science, Henan University, Jinming Avenue, Kaifeng, Henan 475004, China.
| | - Xiajun Guo
- Institute of Nursing and Health, College of Nursing and Health, Henan University, Kaifeng, Henan, China
| | - Yuanyuan Li
- Institute of Nursing and Health, College of Nursing and Health, Henan University, Kaifeng, Henan, China
| | - Chaoran Chen
- Institute of Nursing and Health, College of Nursing and Health, Henan University, Kaifeng, Henan, China.
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14
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Cai F, Wang P, Chen W, Zhao R, Liu Y. The physiological phenomenon and regulation of macrophage polarization in diabetic wound. Mol Biol Rep 2023; 50:9469-9477. [PMID: 37688679 DOI: 10.1007/s11033-023-08782-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 08/24/2023] [Indexed: 09/11/2023]
Abstract
Macrophages play a crucial role in regulating wound healing, as they undergo a transition from the proinflammatory M1 phenotype to the proliferative M2 phenotype, ultimately contributing to a favorable outcome. However, in hyperglycemic and hyper-reactive oxygen species environments, the polarization of macrophages becomes dysregulated, hindering the transition from the inflammatory to proliferative phase and consequently delaying the wound healing process. Consequently, regulating macrophage polarization is often regarded as a potential target for the treatment of diabetic wounds. The role of macrophages in wound healing and the changes in macrophages in diabetic conditions were discussed in this review. After that, we provide a discussion of recent therapeutic strategies for diabetic wounds that utilize macrophage polarization. Furthermore, this review also provides a comprehensive summary of the efficacious treatment strategies aimed at enhancing diabetic wound healing through the regulation of macrophage polarization. By encompassing a thorough understanding of the fundamental principles and their practical implementation, the advancement of treatment strategies for diabetic wounds can be further facilitated.
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Affiliation(s)
- Feiyu Cai
- Department of Burns and Plastic Surgery & Wound Repair Surgery, the Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Peng Wang
- Department of Burns and skin surgery, The First Affiliated Hospital of Air Force Military Medical University, Shanxi, Xi'an, China
| | - Wenjiao Chen
- Department of Burns and Plastic Surgery & Wound Repair Surgery, the Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Ruomei Zhao
- Department of Burns and Plastic Surgery & Wound Repair Surgery, the Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Yi Liu
- Department of Burns and Plastic Surgery & Wound Repair Surgery, the Lanzhou University Second Hospital, Lanzhou, Gansu, China.
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15
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Song J, Zeng J, Zheng S, Jiang N, Wu A, Guo S, Ye R, Hu L, Huang F, Wang L, Xiaogang Z, Liu B, Wu J, Chen Q. Sanguisorba officinalis L. promotes diabetic wound healing in rats through inflammation response mediated by macrophage. Phytother Res 2023; 37:4265-4281. [PMID: 37260161 DOI: 10.1002/ptr.7906] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 04/16/2023] [Accepted: 05/19/2023] [Indexed: 06/02/2023]
Abstract
Sanguisorba officinalis L., a traditional Chinese medicine, is frequently used to treat burns and scalds. But even so, it is unknown whether S. officinalis L. can accelerate diabetic wounds (DW) healing. Here, to bridge the gap, we employed in vivo and in vitro evaluations to assess the positive effect of S. officinalis L. ethanol extract (ESO) on DW. Results demonstrated that ESO dramatically improved the DW healing rate. With ESO treatment, the inappropriately elevated levels of IL6, IL1β and TNFα in DW were reduced, while the expression of IL10 was increased, indicating that the abnormal inflammation in DW was also under control. Moreover, the abnormally elevated expression of CD86 was significantly inhibited and the expression of CD206 was significantly up-regulated following treatment with ESO. The global level of NF-κB protein was not affected by ESO treatment, but it suppressed the expression of phosphorylated NF-κB and prevented its nuclear entry. In addition, in RAW264.7 cells activated with lipopolysaccharide (LPS), the expression of NLRP3, Caspase1 and IL1β were significantly diminished following ESO treatment. In conclusion, ESO was proved to be a promising treatment for DW healing due to its potential to accelerate the healing process by suppressing the inflammatory response. This was achieved by increasing the ratio of M2 to M1 polarization through blocking the NF-κB/NLRP3 signaling pathway.
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Affiliation(s)
- Jianying Song
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- School of Nursing, Southwest Medical University, Luzhou, China
| | - Jing Zeng
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Silin Zheng
- Department of Nursing, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Nan Jiang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Anguo Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Shengming Guo
- Department of Nursing, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Rupei Ye
- Department of Pathology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Lixin Hu
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- School of Nursing, Southwest Medical University, Luzhou, China
| | - Feihong Huang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Long Wang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Zhou Xiaogang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Bo Liu
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- School of Nursing, Southwest Medical University, Luzhou, China
| | - Jianming Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Qi Chen
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- School of Nursing, Southwest Medical University, Luzhou, China
- Department of Endocrinology and Metabolism, Metabolic Vascular Disease Key Laboratory of Sichuan Province, Luzhou, China
- Department of Endocrinology and Metabolism, Sichuan Clinical Research Center for Nephropathy, Luzhou, China
- Department of Endocrinology and Metabolism, Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, Luzhou, China
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16
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Mei J, Xu D, Wang L, Kong L, Liu Q, Li Q, Zhang X, Su Z, Hu X, Zhu W, Ye M, Wang J, Zhu C. Biofilm Microenvironment-Responsive Self-Assembly Nanoreactors for All-Stage Biofilm Associated Infection through Bacterial Cuproptosis-like Death and Macrophage Re-Rousing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2303432. [PMID: 37262064 DOI: 10.1002/adma.202303432] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/17/2023] [Indexed: 06/03/2023]
Abstract
Bacterial biofilm-associated infections (BAIs) are the leading cause of prosthetic implant failure. The dense biofilm structure prevents antibiotic penetration, while the highly acidic and H2 O2 -rich biofilm microenvironment (BME) dampens the immunological response of antimicrobial macrophages. Conventional treatments that fail to consistently suppress escaping planktonic bacteria from biofilm result in refractory recolonization, allowing BAIs to persist. Herein, a BME-responsive copper-doped polyoxometalate clusters (Cu-POM) combination with mild photothermal therapy (PTT) and macrophage immune re-rousing for BAI eradication at all stages is proposed. The self-assembly of Cu-POM in BME converts endogenous H2 O2 to toxic ·OH through chemodynamic therapy (CDT) and generates a mild PTT effect to induce bacterial metabolic exuberance, resulting in loosening the membrane structure of the bacteria, enhancing copper transporter activity and increasing intracellular Cu-POM flux. Metabolomics reveals that intracellular Cu-POM overload restricts the TCA cycle and peroxide accumulation, promoting bacterial cuproptosis-like death. CDT re-rousing macrophages scavenge planktonic bacteria escaping biofilm disintegration through enhanced chemotaxis and phagocytosis. Overall, BME-responsive Cu-POM promotes bacterial cuproptosis-like death via metabolic interference, while also re-rousing macrophage immune response for further planktonic bacteria elimination, resulting in all-stage BAI clearance and providing a new reference for future clinical application.
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Affiliation(s)
- Jiawei Mei
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, P. R. China
| | - Dongdong Xu
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, 200233, P. R. China
| | - Lingtian Wang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, 200233, P. R. China
| | - Lingtong Kong
- Department of Orthopedics, Changhai Hospital, Naval Medical University, Shanghai, 200060, P. R. China
| | - Quan Liu
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, P. R. China
| | - Qianming Li
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, P. R. China
| | - Xianzuo Zhang
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, P. R. China
| | - Zheng Su
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, P. R. China
| | - Xianli Hu
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, P. R. China
| | - Wanbo Zhu
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, 200233, P. R. China
| | - Ming Ye
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, 210029, P. R. China
| | - Jiaxing Wang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, 200233, P. R. China
| | - Chen Zhu
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, P. R. China
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17
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Geng K, Ma X, Jiang Z, Gu J, Huang W, Wang W, Xu Y, Xu Y. WDR74 facilitates TGF-β/Smad pathway activation to promote M2 macrophage polarization and diabetic foot ulcer wound healing in mice. Cell Biol Toxicol 2023; 39:1577-1591. [PMID: 35982296 DOI: 10.1007/s10565-022-09748-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/06/2022] [Indexed: 11/02/2022]
Abstract
Diabetic foot ulcer (DFU) is a devastating component of diabetes progression, leading to decreased quality of life and increased mortality in diabetic patients. The underlying mechanism of DFU is not completely understood. Hence, this study aims to elucidate the mechanism involved in wound healing in mouse models of DFU. Gain- and loss-of-function studies were performed to study the roles that WDR74 and TGF-β play in mouse models of DFU and primary bone marrow-derived mouse macrophages. M1 and M2 macrophage phenotypic markers, extracellular matrix (ECM) components, and angiogenic makers were determined by RT-qPCR and/or Western blot analysis. Localization of these proteins was determined by immunofluorescence staining and/or immunohistochemistry. Interaction between WDR74 with Smad2/3 in macrophages was detected by co-immunoprecipitation. We found that WDR74 and M2 macrophages were decreased in wound tissues from DFU mice. TGF-β/Smad pathway activation increased the expression of M2 macrophage markers (arginase-1 and YM1), IL-4, while decreased expression of M1 macrophage marker (iNOS). TGF-β/Smad pathway activation also increased the production of ECM and promoted the wound closure in diabetic mice. We also noticed that WDR74 overexpression increased Smad2/3 phosphorylation, elevated the population of M2 macrophage and ECM production, and alleviated DFU. LY2109761 treatment normalized effects of TGF-β or WDR74 overexpression. In conclusion, WDR74 promoted M2 macrophage polarization, leading to improved DFU in mice, through activation of the TGF-β/Smad pathway. Graphical Headlights 1. WDR74 promotes M2 macrophage polarization and ECM production. 2. WDR74 activates the TGF-β/Smad signaling pathway. 3. TGF-β/Smad activation promotes M2 macrophage polarization in murine DFU. 4. WDR74 enhances wound healing in murine DFU.
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Affiliation(s)
- Kang Geng
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao
- Department of Endocrinology and Metabolism, Metabolic Vascular Disease Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Nephropathy, Luzhou, Sichuan, People's Republic of China
- Department of Plastic and Burn Surgery, National Key Clinical Construction Specialty, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China
| | - Xiumei Ma
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao
- Department of Endocrinology and Metabolism, Metabolic Vascular Disease Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Nephropathy, Luzhou, Sichuan, People's Republic of China
| | - Zongzhe Jiang
- Department of Endocrinology and Metabolism, Metabolic Vascular Disease Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Nephropathy, Luzhou, Sichuan, People's Republic of China
| | - Junling Gu
- Endocrinology Department, The Second People's Hospital of Yibin, West China Yibin Hospital, Sichuan University, Yibin, Sichuan, People's Republic of China
| | - Wei Huang
- Department of Endocrinology and Metabolism, Metabolic Vascular Disease Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Nephropathy, Luzhou, Sichuan, People's Republic of China
| | - Weiming Wang
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao
- Department of General Surgery (Vascular Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China
| | - Yong Xu
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao.
- Department of Endocrinology and Metabolism, Metabolic Vascular Disease Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Nephropathy, Luzhou, Sichuan, People's Republic of China.
| | - Youhua Xu
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao.
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18
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Accipe L, Abadie A, Neviere R, Bercion S. Antioxidant Activities of Natural Compounds from Caribbean Plants to Enhance Diabetic Wound Healing. Antioxidants (Basel) 2023; 12:antiox12051079. [PMID: 37237945 DOI: 10.3390/antiox12051079] [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: 03/31/2023] [Revised: 04/23/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Diabetic wound healing is a global medical challenge. Several studies showed that delayed healing in diabetic patients is multifactorial. Nevertheless, there is evidence that excessive production of ROS and impaired ROS detoxification in diabetes are the main cause of chronic wounds. Indeed, increased ROS promotes the expression and activity of metalloproteinase, resulting in a high proteolytic state in the wound with significant destruction of the extracellular matrix, which leads to a stop in the repair process. In addition, ROS accumulation increases NLRP3 inflammasome activation and macrophage hyperpolarization in the M1 pro-inflammatory phenotype. Oxidative stress increases the activation of NETosis. This leads to an elevated pro-inflammatory state in the wound and prevents the resolution of inflammation, an essential step for wound healing. The use of medicinal plants and natural compounds can improve diabetic wound healing by directly targeting oxidative stress and the transcription factor Nrf2 involved in the antioxidant response or the mechanisms impacted by the elevation of ROS such as NLRP3 inflammasome, the polarization of macrophages, and expression or activation of metalloproteinases. This study of the diabetic pro-healing activity of nine plants found in the Caribbean highlights, more particularly, the role of five polyphenolic compounds. At the end of this review, research perspectives are presented.
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Affiliation(s)
- Laura Accipe
- UR5_3 PC2E Cardiac Pathology, Environmental Toxicity and Envenomations, Université des Antilles, BP 250, CEDEX, 97157 Pointe à Pitre, France
| | - Alisson Abadie
- UR5_3 PC2E Cardiac Pathology, Environmental Toxicity and Envenomations, Université des Antilles, BP 250, CEDEX, 97157 Pointe à Pitre, France
| | - Remi Neviere
- UR5_3 PC2E Cardiac Pathology, Environmental Toxicity and Envenomations, Université des Antilles, BP 250, CEDEX, 97157 Pointe à Pitre, France
- CHU Martinique, University Hospital of Martinique, 97200 Fort de France, France
| | - Sylvie Bercion
- UR5_3 PC2E Cardiac Pathology, Environmental Toxicity and Envenomations, Université des Antilles, BP 250, CEDEX, 97157 Pointe à Pitre, France
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Dai J, Zhou Y, Mei S, Chen H. Application of antibiotic bone cement in the treatment of infected diabetic foot ulcers in type 2 diabetes. BMC Musculoskelet Disord 2023; 24:135. [PMID: 36810078 PMCID: PMC9942328 DOI: 10.1186/s12891-023-06244-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 02/15/2023] [Indexed: 02/23/2023] Open
Abstract
BACKGROUND In this study, we try to investigate the effect of antibiotic bone cement in patients with infected diabetic foot ulcer (DFU). METHODS This is a retrospective study, including fifty-two patients with infected DFU who had undergone treated between June 2019 and May 2021. Patients were divided into Polymethylmethacrylate (PMMA) group and control group. 22 patients in PMMA group received antibiotic bone cement and regular wound debridement, and 30 patients in control group received regular wound debridement. Clinical outcomes include the rate of wound healing, duration of healing, duration of wound preparation, rate of amputation, and frequency of debridement procedures. RESULTS In PMMA group, twenty-two patients (100%) had complete wound healing. In control group, twenty-eight patients (93.3%) had wound healing. Compared with control group, PMMA group had fewer frequencies of debridement procedures and shorter duration of wound healing (35.32 ± 3.77 days vs 44.37 ± 7.44 days, P < 0.001). PMMA group had five minor amputation, while control group had eight minor amputation and two major amputation. Regarding the rate of limb salvage, there was no limb lose in PMMA group and two limb losses in control group. CONCLUSION The application of antibiotic bone cement is an effective solution for infected DFU treatment. It can effectively decreased the frequency of debridement procedures and shorten the healing duration in patients with infected DFU.
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Affiliation(s)
- Jiezhi Dai
- grid.412528.80000 0004 1798 5117Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Yu Zhou
- Department of Orthopedic Surgery, Civil Aviation Hospital of Shanghai, Shanghai, China
| | - Shasha Mei
- Department of Anesthesiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| | - Hua Chen
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
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Karnam K, Sedmaki K, Sharma P, Venuganti VVK, Kulkarni OP. Selective inhibition of PKR by C16 accelerates diabetic wound healing by inhibiting NALP3 expression in mice. Inflamm Res 2023; 72:221-236. [PMID: 36418464 DOI: 10.1007/s00011-022-01667-y] [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: 03/02/2021] [Revised: 09/30/2022] [Accepted: 11/01/2022] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE AND DESIGN To understand the expression of dsRNA-dependent protein kinase R (PKR) in impaired diabetic wounds, hyperglycemia was induced in C57/BL6 mice with streptozotocin. Murine macrophage cell line, Raw 264.7, stimulated with high glucose and LPS was used to mimic diabetic wound environment in in-vitro. MATERIALS Macrophages stimulated with HG + LPS, in presence and absence of PKR inhibitor (C16) and wound tissue samples from topically treated mice with C16, were analyzed for the expression of PKR, NALP3, active caspase-1, mature IL-1β and phosphorylation of PKR and eIF2α. Wounds tissues were also analyzed for inflammatory cell infiltration by immunohistochemistry, angiogenesis by CD31 staining, collagen expression by western blotting, expression of CD206+ macrophages by flow cytometry and wound strength by texture analyzer. RESULTS PKR and NALP3 were found to be upregulated in macrophages stimulated with HG + LPS as well as in impaired diabetic wounds. PKR inhibition using C16 ameliorated expression of NALP3, caspase-1, IL-1β and phosphorylation of PKR and eIF2α, in macrophages and also in diabetic wounds. Treatment with C16 promoted the wound healing in diabetic mice by increasing collagen synthesis, reducing infiltration of F4/80+ macrophages and MPO+ neutrophil cells, increased angiogenesis, and increased number of M2 macrophages. CONCLUSION PKR inhibition using C16 accelerates the wound healing process in diabetic mice by decreasing NALP3-mediated IL-1β maturation.
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Affiliation(s)
- Kalyani Karnam
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad, India
| | - Kavitha Sedmaki
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad, India
| | - Pravesh Sharma
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad, India
| | | | - Onkar Prakash Kulkarni
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad, India.
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Lin S, Wang Q, Huang X, Feng J, Wang Y, Shao T, Deng X, Cao Y, Chen X, Zhou M, Zhao C. Wounds under diabetic milieu: The role of immune cellar components and signaling pathways. Biomed Pharmacother 2023; 157:114052. [PMID: 36462313 DOI: 10.1016/j.biopha.2022.114052] [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: 09/28/2022] [Revised: 11/19/2022] [Accepted: 11/25/2022] [Indexed: 12/05/2022] Open
Abstract
A major challenge in the field of diabetic wound healing is to confirm the body's intrinsic mechanism that could sense the immune system damage promptly and protect the wound from non-healing. Accumulating literature indicates that macrophage, a contributor to prolonged inflammation occurring at the wound site, might play such a role in hindering wound healing. Likewise, other immune cell dysfunctions, such as persistent neutrophils and T cell infection, may also lead to persistent oxidative stress and inflammatory reaction during diabetic wound healing. In this article, we discuss recent advances in the immune cellular components in wounds under the diabetic milieu, and the role of key signaling mechanisms that compromise the function of immune cells leading to persistent wound non-healing.
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Affiliation(s)
- Siyuan Lin
- Shanghai Traditional Chinese Medicine Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China; Institute for Interdisciplinary Medicine Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; School of Public Health, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Qixue Wang
- Shanghai Traditional Chinese Medicine Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China; Institute for Interdisciplinary Medicine Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xiaoting Huang
- Shanghai Traditional Chinese Medicine Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China
| | - Jiawei Feng
- Shanghai Traditional Chinese Medicine Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China
| | - Yuqing Wang
- Shanghai Traditional Chinese Medicine Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China
| | - Tengteng Shao
- Shanghai Traditional Chinese Medicine Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China
| | - Xiaofei Deng
- Shanghai Traditional Chinese Medicine Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China
| | - Yemin Cao
- Shanghai Traditional Chinese Medicine Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China
| | - Xinghua Chen
- Jinshan Hospital Affiliated to Fudan University, Shanghai, China.
| | - Mingmei Zhou
- Shanghai Traditional Chinese Medicine Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China; Institute for Interdisciplinary Medicine Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Cheng Zhao
- Shanghai Traditional Chinese Medicine Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China.
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Hassanshahi A, Moradzad M, Ghalamkari S, Fadaei M, Cowin AJ, Hassanshahi M. Macrophage-Mediated Inflammation in Skin Wound Healing. Cells 2022; 11:cells11192953. [PMID: 36230913 PMCID: PMC9564023 DOI: 10.3390/cells11192953] [Citation(s) in RCA: 59] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/11/2022] [Accepted: 09/16/2022] [Indexed: 11/16/2022] Open
Abstract
Macrophages are key immune cells that respond to infections, and modulate pathophysiological conditions such as wound healing. By possessing phagocytic activities and through the secretion of cytokines and growth factors, macrophages are pivotal orchestrators of inflammation, fibrosis, and wound repair. Macrophages orchestrate the process of wound healing through the transitioning from predominantly pro-inflammatory (M1-like phenotypes), which present early post-injury, to anti-inflammatory (M2-like phenotypes), which appear later to modulate skin repair and wound closure. In this review, different cellular and molecular aspects of macrophage-mediated skin wound healing are discussed, alongside important aspects such as macrophage subtypes, metabolism, plasticity, and epigenetics. We also highlight previous studies demonstrating interactions between macrophages and these factors for optimal wound healing. Understanding and harnessing the activity and capability of macrophages may help to advance new approaches for improving healing of the skin.
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Affiliation(s)
- Alireza Hassanshahi
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide, SA 5095, Australia
| | - Mohammad Moradzad
- Department of Clinical Biochemistry, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj 66179-13446, Iran
| | - Saman Ghalamkari
- Department of Biology, Islamic Azad University, Arsanjan 61349-37333, Iran
| | - Moosa Fadaei
- Department of Biology, Islamic Azad University, Arsanjan 61349-37333, Iran
| | - Allison J. Cowin
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide, SA 5095, Australia
- Correspondence: (A.J.C.); (M.H.)
| | - Mohammadhossein Hassanshahi
- Vascular Research Centre, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, North Terrace, Adelaide, SA 5005, Australia
- Correspondence: (A.J.C.); (M.H.)
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Relevance of NLRP3 Inflammasome-Related Pathways in the Pathology of Diabetic Wound Healing and Possible Therapeutic Targets. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9687925. [PMID: 35814271 PMCID: PMC9262551 DOI: 10.1155/2022/9687925] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/30/2022] [Accepted: 06/01/2022] [Indexed: 11/30/2022]
Abstract
Wound healing is a major secondary complication in type 2 diabetes, which results in significant disability and mortality, imposing a significant clinical and social burden. Sustained activation of the Nod-like receptor protein (NLRP) inflammasome in wounds is responsible for excessive inflammatory responses and aggravates wound damage. The activation of the NLRP3 inflammasome is regulated by a two-step process: the priming/licensing (signal 1) step involved in transcription and posttranslation and the protein complex assembly (signal 2) step triggered by danger molecules. This review focuses on the advances made in understanding the pathophysiological mechanisms underlying wound healing in the diabetic microenvironment. Simultaneously, this review summarizes the molecular mechanisms of the main regulatory pathways associated with signal 1 and signal 2, which trigger the NLRP3 inflammasome complex assembly in the development of diabetic wounds (DW). Activation of the NLRP3 inflammasome-related pathway, involving the disturbance in Nrf2 and the NF-κB/NLRP3 inflammasome, TLR receptor-mediated activation of the NF-κB/NLRP3 inflammasome, and various stimuli inducing NLRP3 inflammasome assembly play a pivotal role in DW healing. Furthermore, therapeutics targeting the NLRP3 inflammasome-related pathways may promote angiogenesis, reprogram immune cells, and improve DW healing.
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24
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Role of Inflammasomes in Keloids and Hypertrophic Scars-Lessons Learned from Chronic Diabetic Wounds and Skin Fibrosis. Int J Mol Sci 2022; 23:ijms23126820. [PMID: 35743263 PMCID: PMC9223684 DOI: 10.3390/ijms23126820] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 02/06/2023] Open
Abstract
Keloids and hypertrophic scars are pathological cutaneous scars. They arise from excessive wound healing, which induces chronic dermal inflammation and results in overwhelming fibroblast production of extracellular matrix. Their etiology is unclear. Inflammasomes are multiprotein complexes that are important in proinflammatory innate-immune system responses. We asked whether inflammasomes participate in pathological scarring by examining the literature on scarring, diabetic wounds (also characterized by chronic inflammation), and systemic sclerosis (also marked by fibrosis). Pathological scars are predominantly populated by anti-inflammatory M2 macrophages and recent literature hints that this could be driven by non-canonical inflammasome signaling. Diabetic-wound healing associates with inflammasome activation in immune (macrophages) and non-immune (keratinocytes) cells. Fibrotic conditions associate with inflammasome activation and inflammasome-induced transition of epithelial cells/endothelial cells/macrophages into myofibroblasts that deposit excessive extracellular matrix. Studies suggest that mechanical stimuli activate inflammasomes via the cytoskeleton and that mechanotransduction-inflammasome crosstalk is involved in fibrosis. Further research should examine (i) the roles that various inflammasome types in macrophages, (myo)fibroblasts, and other cell types play in keloid development and (ii) how mechanical stimuli interact with inflammasomes and thereby drive scar growth. Such research is likely to significantly advance our understanding of pathological scarring and aid the development of new therapeutic strategies.
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Abstract
Atherosclerosis is considered a chronic, inflammatory disease responsible for more than 15% of all global deaths, secondary to its complications of myocardial infarction, vascular disease, and stroke. Current treatment regimens consist of lipid-lowering pharmaceuticals, control of risk factors, and prevention of plaque rupture and thrombosis with antiplatelet agents. However, a significant burden on society remains due to the morbidity and mortality of coronary artery disease despite our best practices. In addition to dyslipidemia and hemostasis, inflammation has now moved to the proverbial forefront as the remaining obstacle to appropriate management of atherosclerosis. A complex dance of endothelial dysfunction, complement activation, and immune cell-mediated cytokine release underlie the pathogenesis of atherosclerotic plaque development, destabilization, and rupture. Cholesterol-induced sterile inflammation is thought to be central to this process via activation of a protein complex called the nucleotide-binding oligomerization domain-, leucine-rich repeat- and pyrin domain-containing 3 (NLRP3) inflammasome. The focus of this review article will be to examine the NLRP3 inflammasome, which directs the release of interleukin-1, leading to downstream pro-inflammatory effects, and its potential for therapeutic targeting using currently available and future tools in our pharmacologic arsenal. In particular, we focus on the results of several large, recently concluded clinical trials including the Canakinumab Antiinflammatory Thrombosis Outcome Study, Colchicine Cardiovascular Outcomes Trial, and the Low-Dose Colchicine Study, examining the efficacy of direct inhibition of interleukin-1 with canakinumab or a multimodal approach to inhibiting the NLRP3 inflammasome using colchicine, as well as an overview of novel small molecule inhibitors that are still in development.
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Affiliation(s)
- Gregory Hemenway
- From the Department of Medicine, Temple University Hospital, Philadelphia, PA
| | - William H Frishman
- Department of Medicine, New York Medical College/Westchester Medical Center, Valhalla, NY
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26
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Louiselle AE, Niemiec SM, Zgheib C, Liechty KW. Macrophage polarization and diabetic wound healing. Transl Res 2021; 236:109-116. [PMID: 34089902 DOI: 10.1016/j.trsl.2021.05.006] [Citation(s) in RCA: 220] [Impact Index Per Article: 73.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 05/25/2021] [Accepted: 05/28/2021] [Indexed: 12/15/2022]
Abstract
Diabetes mellitus is a costly disease and nearly one-third of these costs are attributed to management of diabetic foot disease including chronic, non-healing, diabetic foot ulcers. Therefore, much effort has been placed into understanding the pathogenesis of diabetic wounds and novel therapeutics. A relatively new area of interest has been macrophage polarization and its role in diabetic wound healing. Diabetic wounds show dysregulated and persistent M1 (pro-inflammatory) macrophage polarization whereas normal wounds will display a transition to M2 (pro-healing) macrophages around day three after wounding. We reviewed factors known to affect macrophage polarization, mostly focused on those that contribute to M2 macrophage polarization, and potential treatments that at least in part target macrophage polarization in the diabetic wound bed. Much of the work has been aimed at reducing hyperglycemia and encouraging pro-inflammatory cytokine neutralization or decreased expression given this has a significant role in producing M1 macrophages. Treatment of diabetic wounds will likely require a multi-modal approach including management of underlying diabetes and control of hyperglycemia, topical therapeutics, and prevention of secondary infection and inflammation.
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Affiliation(s)
- Amanda E Louiselle
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, University of Colorado Denver School of Medicine and Children's Hospital Colorado, Aurora, Colorado
| | - Stephen M Niemiec
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, University of Colorado Denver School of Medicine and Children's Hospital Colorado, Aurora, Colorado
| | - Carlos Zgheib
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, University of Colorado Denver School of Medicine and Children's Hospital Colorado, Aurora, Colorado
| | - Kenneth W Liechty
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, University of Colorado Denver School of Medicine and Children's Hospital Colorado, Aurora, Colorado.
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27
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Lee JY, Kang Y, Kim HJ, Kim DJ, Lee KW, Han SJ. Acute Glucose Shift Induces the Activation of the NLRP3 Inflammasome in THP-1 Cells. Int J Mol Sci 2021; 22:ijms22189952. [PMID: 34576117 PMCID: PMC8465199 DOI: 10.3390/ijms22189952] [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] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 09/11/2021] [Indexed: 02/07/2023] Open
Abstract
We aimed to investigate the effect of acute glucose shift on the activation of the NLRP3 inflammasome, IL-1β secretion, and underlying signaling pathways in THP-1 cells. THP-1 cells were divided into four groups and exposed to the following glucose concentrations for 24 h: constant normal glucose (NG, 5.5 mM), constant high glucose (HG, 25 mM), normal to high glucose shift (NG-to-HG, 5.5 to 25 mM), and high to normal glucose shift (HG-to-NG, 25 to 5.5 mM). Cell viability, oxidative stress, and the levels of NLRP3 inflammasome components were assessed. Both directions of the acute glucose shift increased the activation of the NLRP3 inflammasome, generation of reactive oxygen species (ROS), and expression of phosphorylated p38 MAPK, JNK, and NF-κB compared with either constant NG or HG. Treatment with N-acetylcysteine, a pharmacological antioxidant, inhibited the acute glucose shift-induced generation of ROS, activation of NLRP3 inflammasome, and upregulation of MAPK-NF-κB. Further analysis using inhibitors of p38 MAPK, JNK, and NF-κB indicated that acute glucose shifts promoted IL-1β secretion by activating the signaling pathway in a ROS-MAPK-NF-κB-NLRP3 inflammasome in THP-1 cells. These findings suggested that acute changes in glucose concentration might cause monocyte inflammation, which is associated with diabetic complications.
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Affiliation(s)
- Ji Yeon Lee
- Department of Endocrinology & Metabolism, Ajou University School of Medicine, 164 World Cup-ro, Yeongtong-gu, Suwon 16499, Korea
| | - Yup Kang
- Department of Physiology, Ajou University School of Medicine, 164 World Cup-ro, Yeongtong-gu, Suwon 16499, Korea
| | - Hae Jin Kim
- Department of Endocrinology & Metabolism, Ajou University School of Medicine, 164 World Cup-ro, Yeongtong-gu, Suwon 16499, Korea
| | - Dae Jung Kim
- Department of Endocrinology & Metabolism, Ajou University School of Medicine, 164 World Cup-ro, Yeongtong-gu, Suwon 16499, Korea
| | - Kwan Woo Lee
- Department of Endocrinology & Metabolism, Ajou University School of Medicine, 164 World Cup-ro, Yeongtong-gu, Suwon 16499, Korea
| | - Seung Jin Han
- Department of Endocrinology & Metabolism, Ajou University School of Medicine, 164 World Cup-ro, Yeongtong-gu, Suwon 16499, Korea
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28
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D’Amico R, Fusco R, Siracusa R, Impellizzeri D, Peritore AF, Gugliandolo E, Interdonato L, Sforza AM, Crupi R, Cuzzocrea S, Genovese T, Cordaro M, Di Paola R. Inhibition of P2X7 Purinergic Receptor Ameliorates Fibromyalgia Syndrome by Suppressing NLRP3 Pathway. Int J Mol Sci 2021; 22:ijms22126471. [PMID: 34208781 PMCID: PMC8234677 DOI: 10.3390/ijms22126471] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/11/2021] [Accepted: 06/14/2021] [Indexed: 12/12/2022] Open
Abstract
Fibromyalgia is a chronic condition characterized by persistent widespread pain that significantly reduces quality of life in patients. The purinergic P2X7 receptor (P2X7R) seems to be involved in different pain states and neuroinflammation. The purpose of this study is to investigate the positive effects of P2X7R inhibition by the antagonist Brilliant Blue G (BBG) in a rat model of reserpine-induced fibromyalgia. Sprague-Dawley male rats were injected with 1 mg/kg of reserpine for three consecutive days. Later, animals were administered BBG (50 mg/kg) intraperitoneally for seven days. Reserpine injections induced a significant increase in pain pro-inflammatory mediators as well as a significant increase in neuroinflammation. Chronic pain, in turn, led to depressive-like symptoms and reduced neurogenesis. Blockage of P2X7R by BBG administrations is able to attenuate the behavioral deficits, pain mediators and microglial activation induced by reserpine injection. Additionally, BBG prevents NLRP3 inflammasome activation and consequently the release of active interleukin (IL)-1 and IL-18, involved in the activation of nociceptors. In conclusion, these results suggest that inhibition of P2X7R should be further investigated to develop a potential approach for the management of fibromyalgia.
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Affiliation(s)
- Ramona D’Amico
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.D.); (R.F.); (R.S.); (D.I.); (A.F.P.); (L.I.); or (A.M.S.); (R.D.P.)
| | - Roberta Fusco
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.D.); (R.F.); (R.S.); (D.I.); (A.F.P.); (L.I.); or (A.M.S.); (R.D.P.)
| | - Rosalba Siracusa
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.D.); (R.F.); (R.S.); (D.I.); (A.F.P.); (L.I.); or (A.M.S.); (R.D.P.)
| | - Daniela Impellizzeri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.D.); (R.F.); (R.S.); (D.I.); (A.F.P.); (L.I.); or (A.M.S.); (R.D.P.)
| | - Alessio Filippo Peritore
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.D.); (R.F.); (R.S.); (D.I.); (A.F.P.); (L.I.); or (A.M.S.); (R.D.P.)
| | - Enrico Gugliandolo
- Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (E.G.); (R.C.)
| | - Livia Interdonato
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.D.); (R.F.); (R.S.); (D.I.); (A.F.P.); (L.I.); or (A.M.S.); (R.D.P.)
| | - Andrea Maria Sforza
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.D.); (R.F.); (R.S.); (D.I.); (A.F.P.); (L.I.); or (A.M.S.); (R.D.P.)
| | - Rosalia Crupi
- Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (E.G.); (R.C.)
| | - Salvatore Cuzzocrea
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.D.); (R.F.); (R.S.); (D.I.); (A.F.P.); (L.I.); or (A.M.S.); (R.D.P.)
- Correspondence: (S.C.); (T.G.); Tel.: +39-090-676-5208 (S.C. & T.G.)
| | - Tiziana Genovese
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.D.); (R.F.); (R.S.); (D.I.); (A.F.P.); (L.I.); or (A.M.S.); (R.D.P.)
- Correspondence: (S.C.); (T.G.); Tel.: +39-090-676-5208 (S.C. & T.G.)
| | - Marika Cordaro
- Department of Biomedical, Dental and Morphological and Functional Imaging, University of Messina, via Consolare Valeria, 98125 Messina, Italy;
| | - Rosanna Di Paola
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (R.D.); (R.F.); (R.S.); (D.I.); (A.F.P.); (L.I.); or (A.M.S.); (R.D.P.)
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Ye Y, Chen Y, Sun J, Zhang H, Meng Y, Li W, Wang W. Hyperglycemia suppresses the regulatory effect of hypoxia-inducible factor-1α in pulmonary Aspergillus fumigatus infection. Pathog Dis 2021; 78:5873010. [PMID: 32678442 DOI: 10.1093/femspd/ftaa038] [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] [Received: 04/05/2020] [Accepted: 07/16/2020] [Indexed: 12/27/2022] Open
Abstract
Aspergillus fumigatus is one of the most common fungal infections involved in the pulmonary diseases. Hypoxia-inducible factor-1α (HIF-1α) is important for antifungal immunity. Diabetes is a risk factor of pulmonary A. fumigatus infection and could affect the expression of HIF-1α. The aim of this investigation was to evaluate the role of HIF-1α in pulmonary A. fumigatus infection in diabetes. In murine model, we found diabetic mice had aggravated pulmonary A. fumigatus infection and declined expression of HIF-1α following pulmonary A. fumigatus infection. And these changes could be corrected by dimethyloxalylglycine (DMOG), the agonist of HIF-1α. In cell experiment, after A. fumigatus stimulation, hyperglycemic state was with a decreased HIF-1α expression and increased NLRP3/IL-1β signal pathway. The percentages of Th1 and Treg cells decreased, while percentages of Th2 and Th17 increased in hyperglycemic group. DMOG suppressed A. fumigatus-stimulated NLRP3 and IL-1β expressions in hyperglycemic group and corrected Th and Treg cells differentiation. These regulatory effects of DMOG could be dampened by activating of NLRP3. These data indicated that hyperglycemia suppressed the regulatory effect of HIF-1α in pulmonary A. fumigatus infection, which can affect Th and Treg cells differentiation by regulating the NLRP3/IL-1β signal pathway.
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Affiliation(s)
- Yao Ye
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, 110000, China
| | - Yu Chen
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, 110000, China
| | - Jianjun Sun
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, 110000, China
| | - Hanyin Zhang
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, 110000, China
| | - Yanling Meng
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, 110000, China
| | - Wenyang Li
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, 110000, China
| | - Wei Wang
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, 110000, China
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IL-1 β Impaired Diabetic Wound Healing by Regulating MMP-2 and MMP-9 through the p38 Pathway. Mediators Inflamm 2021; 2021:6645766. [PMID: 34054346 PMCID: PMC8149221 DOI: 10.1155/2021/6645766] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 04/12/2021] [Accepted: 04/19/2021] [Indexed: 12/14/2022] Open
Abstract
Diabetes mellitus is one of the most prominent metabolic disorders in the world, and insulin resistance in diabetic patients leads to several complications including increased inflammation and delayed wound healing. Fibroblast migration and reepithelialization play a significant role in wound healing. In this study, we explored the effects of IL-1β signaling on proliferation and migration of human fibroblasts from diabetic wound tissues. We observed elevated levels of IL-1β in samples from diabetic patients when compared to normal wound tissues. At high concentrations, IL-1β inhibited cell proliferation and migration in ex vivo fibroblast cultures. Moreover, expression of matrix metalloproteinases (MMPs) was upregulated, and tissue inhibitor of metalloproteinases (TIMPs) was downregulated in diabetic wound tissues and cells. These effects were regulated by levels of IL-1β. Furthermore, IL-1β induced p38 phosphorylation thereby activating the p38 MAPK pathway that in turn regulated the expression of MMPs and TIMPs. Together, our study identifies a novel mechanism behind delayed wound closure in diabetes mellitus that involves IL-1β-dependent regulation of cell proliferation and migration.
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Zhao Y, Wang Q, Yan S, Zhou J, Huang L, Zhu H, Ye F, Zhang Y, Chen L, Chen L, Zheng T. Bletilla striata Polysaccharide Promotes Diabetic Wound Healing Through Inhibition of the NLRP3 Inflammasome. Front Pharmacol 2021; 12:659215. [PMID: 33981238 PMCID: PMC8110216 DOI: 10.3389/fphar.2021.659215] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 04/12/2021] [Indexed: 12/17/2022] Open
Abstract
The aim of this study was to evaluate the therapeutic effects of Bletilla striata polysaccharide (BSP) on wound healing in diabetes mellitus (DM) and to explore the underlying mechanisms. DM mouse models were induced by high fat-diet feeding combined with low-dose streptozocin injection. To establish diabetic foot ulcer (DFU) models, DM mice were wounded on the dorsal surface. Subsequently, mice were treated with vehicle or BSP for 12 days and wound healing was monitored. The effects of BSP on the production of interleukin-1β (IL-1β), tumor necrosis factor-α, macrophages infiltration, angiogenesis, the activation of nucleotide-binding and oligomerization (NACHT) domain, leucine-rich repeat (LRR), and pyrin domain (PYD)-containing protein 3 (NLRP3) inflammasome, and insulin sensitivity in wound tissues were subsequently evaluated. Separated- and cultured- bone marrow-derived macrophages (BMDMs) and cardiac microvascular endothelial cells (CMECs) were isolated from mice and used to investigate the effects of BSP on cell viability, reactive oxygen species (ROS) generation, NLRP3 inflammasome activation and insulin sensitivity in vitro following exposure to high glucose (HG). BSP administration accelerated diabetic wound healing, suppressed macrophage infiltration, promoted angiogenesis, suppressed NLRP3 inflammasome activation, decreased IL-1β secretion, and improved insulin sensitivity in wound tissues in DM mice. In vitro, co-treatment with BSP protected against HG-induced ROS generation, NLRP3 inflammasome activation, and IL-1β secretion in BMDMs, and improved cell viability and decreased ROS levels in CMECs. Moreover, in HG exposed BMDMs-CMECs cultures, BSP treatment suppressed NLRP3 inflammasome activation and IL-1β secretion in BMDMs, and improved cell viability and insulin sensitivity in CMECs. Furthermore, treatment with IL-1β almost completely suppressed the beneficial effects of BSP on the NLRP3 inflammasome, IL-1β secretion, and insulin sensitivity in HG-treated BMDMs-CMECs. BSP promotes DFU healing through inhibition of the HG-activated NLRP3 inflammasome.
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Affiliation(s)
- Yan Zhao
- Institute of Wudang Traditional Chinese Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, China.,College of Pharmacy, Hubei University of Medicine, Shiyan, China
| | - Qibin Wang
- Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Shan Yan
- Institute of Wudang Traditional Chinese Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, China.,College of Pharmacy, Hubei University of Medicine, Shiyan, China
| | - Jun Zhou
- Institute of Wudang Traditional Chinese Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, China.,College of Pharmacy, Hubei University of Medicine, Shiyan, China
| | - Liangyong Huang
- Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Haitao Zhu
- Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Fang Ye
- Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Yonghong Zhang
- Institute of Wudang Traditional Chinese Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Lin Chen
- Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Li Chen
- Institute of Wudang Traditional Chinese Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, China.,Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Tao Zheng
- Institute of Wudang Traditional Chinese Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, China.,Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, Shiyan, China
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Karnam K, Sedmaki K, Sharma P, Routholla G, Goli S, Ghosh B, Venuganti VVK, Kulkarni OP. HDAC6 inhibitor accelerates wound healing by inhibiting tubulin mediated IL-1β secretion in diabetic mice. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165903. [DOI: 10.1016/j.bbadis.2020.165903] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 07/18/2020] [Accepted: 07/20/2020] [Indexed: 02/08/2023]
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33
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Tan CT, Liang K, Ngo ZH, Dube CT, Lim CY. Application of 3D Bioprinting Technologies to the Management and Treatment of Diabetic Foot Ulcers. Biomedicines 2020; 8:E441. [PMID: 33096771 PMCID: PMC7589916 DOI: 10.3390/biomedicines8100441] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/12/2020] [Accepted: 10/19/2020] [Indexed: 12/21/2022] Open
Abstract
Diabetes mellitus (DM) is a chronic metabolic disease with increasing prevalence worldwide. Diabetic foot ulcers (DFUs) are a serious complication of DM. It is estimated that 15-25% of DM patients develop DFU at least once in their lifetime. The lack of effective wound dressings and targeted therapy for DFUs often results in prolonged hospitalization and amputations. As the incidence of DM is projected to rise, the demand for specialized DFU wound management will continue to increase. Hence, it is of great interest to improve and develop effective DFU-specific wound dressings and therapies. In the last decade, 3D bioprinting technology has made a great contribution to the healthcare sector, with the development of personalized prosthetics, implants, and bioengineered tissues. In this review, we discuss the challenges faced in DFU wound management and how 3D bioprinting technology can be applied to advance current treatment methods, such as biomanufacturing of composite 3D human skin substitutes for skin grafting and the development of DFU-appropriate wound dressings. Future co-development of 3D bioprinting technologies with novel treatment approaches to mitigate DFU-specific pathophysiological challenges will be key to limiting the healthcare burden associated with the increasing prevalence of DM.
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Affiliation(s)
- Chew Teng Tan
- Skin Research Institute of Singapore (SRIS), Agency for Science, Technology and Research (A*STAR), Singapore 138648, Singapore; (C.T.T.); (K.L.); (Z.H.N.); (C.T.D.)
| | - Kun Liang
- Skin Research Institute of Singapore (SRIS), Agency for Science, Technology and Research (A*STAR), Singapore 138648, Singapore; (C.T.T.); (K.L.); (Z.H.N.); (C.T.D.)
| | - Zong Heng Ngo
- Skin Research Institute of Singapore (SRIS), Agency for Science, Technology and Research (A*STAR), Singapore 138648, Singapore; (C.T.T.); (K.L.); (Z.H.N.); (C.T.D.)
| | - Christabel Thembela Dube
- Skin Research Institute of Singapore (SRIS), Agency for Science, Technology and Research (A*STAR), Singapore 138648, Singapore; (C.T.T.); (K.L.); (Z.H.N.); (C.T.D.)
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PT, UK
| | - Chin Yan Lim
- Skin Research Institute of Singapore (SRIS), Agency for Science, Technology and Research (A*STAR), Singapore 138648, Singapore; (C.T.T.); (K.L.); (Z.H.N.); (C.T.D.)
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
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Dai J, Yu M, Chen H, Chai Y. Association Between Serum 25-OH-Vitamin D and Diabetic Foot Ulcer in Patients With Type 2 Diabetes. Front Nutr 2020; 7:109. [PMID: 32984392 PMCID: PMC7493196 DOI: 10.3389/fnut.2020.00109] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 06/15/2020] [Indexed: 12/16/2022] Open
Abstract
Background: Vitamin D deficiency has been associated with an increased risk in several diabetic complications. We aimed to evaluate the association between vitamin D and diabetic foot ulcer (DFU) in patients with type 2 diabetes. Methods: Fifty one patients were included in the study and divided into two groups for study of vitamin D, cholesterol, and triglycerides in blood serum on DFU. The association between vitamin D and DFU was measured by binary logistic regression analysis. The cut point of vitamin D for DFU was assessed by the receiver operating characteristic curve. Results: Levels of 25-OH-vitamin D were lower in patients with DFU than in DM group (P < 0.0001). The AUC of 25-OH-vitamin D was 0.8254 and had an optimal cut point value (13.68 ng/ml) for the identification of DFU, with a sensitivity of 90% and a specificity of 66.67% in all patients. Multivariate logistic regression analysis indicated that the significant risk factors included 25-OH-vitamin D level (P = 0.001, OR = 0.618) and HDL-C level (P = 0.038, OR = 0.012). Conclusion: Low serum 25-OH-vitamin D level was associated with DFU. This indication was more specific than cholesterol and triglycerides levels.
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Affiliation(s)
- Jiezhi Dai
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Min Yu
- Department of Vascular Surgery, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hua Chen
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yimin Chai
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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35
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Starobova H, Nadar EI, Vetter I. The NLRP3 Inflammasome: Role and Therapeutic Potential in Pain Treatment. Front Physiol 2020; 11:1016. [PMID: 32973552 PMCID: PMC7468416 DOI: 10.3389/fphys.2020.01016] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 07/24/2020] [Indexed: 12/14/2022] Open
Abstract
Pain is a fundamental feature of inflammation. The immune system plays a critical role in the activation of sensory neurons and there is increasing evidence of neuro-inflammatory mechanisms contributing to painful pathologies. The inflammasomes are signaling multiprotein complexes that are key components of the innate immune system. They are intimately involved in inflammatory responses and their activation leads to production of inflammatory cytokines that in turn can affect sensory neuron function. Accordingly, the contribution of inflammasome activation to pain signaling has attracted considerable attention in recent years. NLRP3 is the best characterized inflammasome and there is emerging evidence of its role in a variety of inflammatory pain conditions. In vitro and in vivo studies have reported the activation and upregulation of NLRP3 in painful conditions including gout and rheumatoid arthritis, while inhibition of NLRP3 function or expression can mediate analgesia. In this review, we discuss painful conditions in which NLRP3 inflammasome signaling has been pathophysiologically implicated, as well as NLRP3 inflammasome-mediated mechanisms and signaling pathways that may lead to the activation of sensory neurons.
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Affiliation(s)
- Hana Starobova
- Centre for Pain Research, Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD, Australia
| | - Evelyn Israel Nadar
- Centre for Pain Research, Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD, Australia
| | - Irina Vetter
- Centre for Pain Research, Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD, Australia.,School of Pharmacy, The University of Queensland, St Lucia, QLD, Australia
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36
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Menini S, Iacobini C, Vitale M, Pugliese G. The Inflammasome in Chronic Complications of Diabetes and Related Metabolic Disorders. Cells 2020; 9:E1812. [PMID: 32751658 PMCID: PMC7464565 DOI: 10.3390/cells9081812] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/24/2020] [Accepted: 07/28/2020] [Indexed: 12/14/2022] Open
Abstract
Diabetes mellitus (DM) ranks seventh as a cause of death worldwide. Chronic complications, including cardiovascular, renal, and eye disease, as well as DM-associated non-alcoholic fatty liver disease (NAFLD) account for most of the morbidity and premature mortality in DM. Despite continuous improvements in the management of late complications of DM, significant gaps remain. Therefore, searching for additional strategies to prevent these serious DM-related conditions is of the utmost importance. DM is characterized by a state of low-grade chronic inflammation, which is critical in the progression of complications. Recent clinical trials indicate that targeting the prototypic pro-inflammatory cytokine interleukin-1β (IL-1 β) improves the outcomes of cardiovascular disease, which is the first cause of death in DM patients. Together with IL-18, IL-1β is processed and secreted by the inflammasomes, a class of multiprotein complexes that coordinate inflammatory responses. Several DM-related metabolic factors, including reactive oxygen species, glyco/lipoxidation end products, and cholesterol crystals, have been involved in the pathogenesis of diabetic kidney disease, and diabetic retinopathy, and in the promoting effect of DM on the onset and progression of atherosclerosis and NAFLD. These metabolic factors are also well-established danger signals capable of regulating inflammasome activity. In addition to presenting the current state of knowledge, this review discusses how the mechanistic understanding of inflammasome regulation by metabolic danger signals may hopefully lead to novel therapeutic strategies targeting inflammation for a more effective treatment of diabetic complications.
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Affiliation(s)
| | | | | | - Giuseppe Pugliese
- Department of Clinical and Molecular Medicine, “La Sapienza” University, 00189 Rome, Italy; (S.M.); (C.I.); (M.V.)
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37
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Zheng T, Wang Q, Dong Y, Ma W, Zhang Y, Zhao Y, Bian F, Chen L. High Glucose-Aggravated Hepatic Insulin Resistance: Role of the NLRP3 Inflammasome in Kupffer Cells. Obesity (Silver Spring) 2020; 28:1270-1282. [PMID: 32538511 DOI: 10.1002/oby.22821] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 03/17/2020] [Accepted: 03/31/2020] [Indexed: 01/09/2023]
Abstract
OBJECTIVE This study aimed to investigate whether the NLRP3 inflammasome in Kupffer cells (KCs) can be activated in response to high glucose (HG) and to evaluate its influence on hepatic insulin sensitivity. METHODS Primary KCs and hepatocytes were isolated from mice, and lipid accumulation, glucose output, and insulin sensitivity of hepatocytes were investigated after culturing either alone or with KCs exposed to HG. The influence of HG-induced NLRP3 inflammasome activation in KCs on insulin sensitivity of hepatocytes was examined. Treatment with gadolinium trichloride caused KC depletion, and, subsequently, a streptozotocin-induced hyperglycemic mouse model was used to confirm the influence of KCs on hepatic insulin sensitivity. RESULTS Hepatocytes cocultured with KCs showed enhanced lipid accumulation, glucose output, and impaired insulin sensitivity when exposed to HG. Enhanced NLRP3 inflammasome activation was also evident in both hepatocytes and KCs. Moreover, KCs that were pretreated with caspase-1 inhibitor, NLRP3 inhibitor, and NLRP3 small interfering RNA corrected coculture-induced aberrances in insulin action and NLRP3 inflammasome activation in hepatocytes. KC coculture also increased interleukin-1β (IL-1β)-mediated nuclear factor-κB (NF-κB) activation in hepatocytes. In hyperglycemic mice, KC depletion inhibited NLRP3 inflammasome activation and improved hepatic insulin sensitivity. CONCLUSIONS NLRP3 inflammasome activation impaired insulin sensitivity through KC-derived IL-1β-mediated NF-κB activation in hepatocytes exposed to HG.
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Affiliation(s)
- Tao Zheng
- Institute of Wudang Traditional Chinese Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, China
- Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Qibin Wang
- Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Yongcheng Dong
- Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Weidong Ma
- Institute of Wudang Traditional Chinese Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Yonghong Zhang
- Institute of Wudang Traditional Chinese Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Yan Zhao
- Institute of Wudang Traditional Chinese Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Fang Bian
- Department of Pharmacy, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Li Chen
- Institute of Wudang Traditional Chinese Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, China
- Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, Shiyan, China
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38
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Wu KKL, Cheung SWM, Cheng KKY. NLRP3 Inflammasome Activation in Adipose Tissues and Its Implications on Metabolic Diseases. Int J Mol Sci 2020; 21:E4184. [PMID: 32545355 PMCID: PMC7312293 DOI: 10.3390/ijms21114184] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/05/2020] [Accepted: 06/09/2020] [Indexed: 02/06/2023] Open
Abstract
Adipose tissue is an active endocrine and immune organ that controls systemic immunometabolism via multiple pathways. Diverse immune cell populations reside in adipose tissue, and their composition and immune responses vary with nutritional and environmental conditions. Adipose tissue dysfunction, characterized by sterile low-grade chronic inflammation and excessive immune cell infiltration, is a hallmark of obesity, as well as an important link to cardiometabolic diseases. Amongst the pro-inflammatory factors secreted by the dysfunctional adipose tissue, interleukin (IL)-1β, induced by the NLR family pyrin domain-containing 3 (NLRP3) inflammasome, not only impairs peripheral insulin sensitivity, but it also interferes with the endocrine and immune functions of adipose tissue in a paracrine manner. Human studies indicated that NLRP3 activity in adipose tissues positively correlates with obesity and its metabolic complications, and treatment with the IL-1β antibody improves glycaemia control in type 2 diabetic patients. In mouse models, genetic or pharmacological inhibition of NLRP3 activation pathways or IL-1β prevents adipose tissue dysfunction, including inflammation, fibrosis, defective lipid handling and adipogenesis, which in turn alleviates obesity and its related metabolic disorders. In this review, we summarize both the negative and positive regulators of NLRP3 inflammasome activation, and its pathophysiological consequences on immunometabolism. We also discuss the potential therapeutic approaches to targeting adipose tissue inflammasome for the treatment of obesity and its related metabolic disorders.
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Affiliation(s)
| | | | - Kenneth King-Yip Cheng
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China; (K.K.-L.W.); (S.W.-M.C.)
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39
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40
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Wang W, Zhang F, Yan X, Tan Q. Wnt7a regulates high autophagic and inflammatory response of epidermis in high-glucose environment. Burns 2020; 46:121-127. [DOI: 10.1016/j.burns.2019.07.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 06/23/2019] [Accepted: 07/18/2019] [Indexed: 12/23/2022]
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Bhansali S, Bhansali A, Dutta P, Walia R, Dhawan V. Metformin upregulates mitophagy in patients with T2DM: A randomized placebo-controlled study. J Cell Mol Med 2020; 24:2832-2846. [PMID: 31975558 PMCID: PMC7077543 DOI: 10.1111/jcmm.14834] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 10/10/2019] [Accepted: 11/02/2019] [Indexed: 12/25/2022] Open
Abstract
Impaired mitochondrial autophagy (mitophagy) and NLRP3 inflammasome activation have been incriminated in the pathogenesis of T2DM. Metformin besides being an insulin sensitizer also induces autophagy; however, its effect on mitophagy and NLRP3 activation in patients with T2DM still remains elusive. Forty-five drug-naïve T2DM patients with HbA1C 7%-9% (53-75 mmol/mol) were randomly assigned to receive either metformin, voglibose, or placebo for 3 months, and were also recommended for lifestyle intervention programme (n = 15 each). Mitochondrial oxidative stress (MOS) parameters, qPCR and immunoblotting of mitophagy-related markers (PINK1, PARKIN, MFN2, NIX, LC3-II, LAMP2), p-AMPKα (T172), and NLRP3 proteins, as well as transmission electron microscopy (TEM) for assessing mitochondrial morphology were performed in the mononuclear cells of study patients. Both metformin and voglibose showed a similar efficacy towards the reduction in HbA1c and MOS indices. However, multivariate ANCOVA divulged that mRNA and protein expression of mitophagy markers, NLRP3 and p-AMPKα (T172), were significantly increased only with metformin therapy. Moreover, PINK1 expression displayed a significant positive association with HOMA-β indices, and TEM studies further confirmed reduced distortions in mitochondrial morphology in the metformin group only. Our observations underscore that metformin upregulates mitophagy and subsequently ameliorates the altered mitochondrial morphology and function, independent of its glucose-lowering effect. Further, restoration of normal mitochondrial phenotype may improve cellular function, including β-cells, which may prevent further worsening of hyperglycaemia in patients with T2DM.
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Affiliation(s)
- Shipra Bhansali
- Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Anil Bhansali
- Department of Endocrinology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Pinaki Dutta
- Department of Endocrinology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Rama Walia
- Department of Endocrinology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Veena Dhawan
- Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
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Berlanga-Acosta JA, Guillén-Nieto GE, Rodríguez-Rodríguez N, Mendoza-Mari Y, Bringas-Vega ML, Berlanga-Saez JO, García del Barco Herrera D, Martinez-Jimenez I, Hernandez-Gutierrez S, Valdés-Sosa PA. Cellular Senescence as the Pathogenic Hub of Diabetes-Related Wound Chronicity. Front Endocrinol (Lausanne) 2020; 11:573032. [PMID: 33042026 PMCID: PMC7525211 DOI: 10.3389/fendo.2020.573032] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/13/2020] [Indexed: 01/10/2023] Open
Abstract
Diabetes is constantly increasing at a rate that outpaces genetic variation and approaches to pandemic magnitude. Skin cells physiology and the cutaneous healing response are progressively undermined in diabetes which predisposes to lower limb ulceration, recidivism, and subsequent lower extremities amputation as a frightened complication. The molecular operators whereby diabetes reduces tissues resilience and hampers the repair mechanisms remain elusive. We have accrued the notion that diabetic environment embraces preconditioning factors that definitively propel premature cellular senescence, and that ulcer cells senescence impair the healing response. Hyperglycemia/oxidative stress/mitochondrial and DNA damage may act as major drivers sculpturing the senescent phenotype. We review here historical and recent evidences that substantiate the hypothesis that diabetic foot ulcers healing trajectory, is definitively impinged by a self-expanding and self-perpetuative senescent cells society that drives wound chronicity. This society may be fostered by a diabetic archetypal secretome that induces replicative senescence in dermal fibroblasts, endothelial cells, and keratinocytes. Mesenchymal stem cells are also susceptible to major diabetic senescence drivers, which accounts for the inability of these cells to appropriately assist in diabetics wound healing. Thus, the use of autologous stem cells has not translated in significant clinical outcomes. Novel and multifaceted therapeutic approaches are required to pharmacologically mitigate the diabetic cellular senescence operators and reduce the secondary multi-organs complications. The senescent cells society and its adjunctive secretome could be an ideal local target to manipulate diabetic ulcers and prevent wound chronification and acute recidivism. This futuristic goal demands harnessing the diabetic wound chronicity epigenomic signature.
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Affiliation(s)
- Jorge A. Berlanga-Acosta
- The Clinical Hospital Chengdu Brain Sciences Institute, University of Electronic Science and Technology of China, Chengdu, China
- Tissue Repair, Wound Healing and Cytoprotection Research Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Playa, Cuba
| | - Gerardo E. Guillén-Nieto
- The Clinical Hospital Chengdu Brain Sciences Institute, University of Electronic Science and Technology of China, Chengdu, China
- Tissue Repair, Wound Healing and Cytoprotection Research Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Playa, Cuba
| | - Nadia Rodríguez-Rodríguez
- Tissue Repair, Wound Healing and Cytoprotection Research Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Playa, Cuba
| | - Yssel Mendoza-Mari
- Tissue Repair, Wound Healing and Cytoprotection Research Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Playa, Cuba
| | - Maria Luisa Bringas-Vega
- The Clinical Hospital Chengdu Brain Sciences Institute, University of Electronic Science and Technology of China, Chengdu, China
- Cuban Neurosciences Center, Playa, Cuba
| | - Jorge O. Berlanga-Saez
- Applied Mathematics Department, Institute of Mathematics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Diana García del Barco Herrera
- Tissue Repair, Wound Healing and Cytoprotection Research Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Playa, Cuba
| | - Indira Martinez-Jimenez
- Tissue Repair, Wound Healing and Cytoprotection Research Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Playa, Cuba
| | | | - Pedro A. Valdés-Sosa
- The Clinical Hospital Chengdu Brain Sciences Institute, University of Electronic Science and Technology of China, Chengdu, China
- Cuban Neurosciences Center, Playa, Cuba
- *Correspondence: Pedro A. Valdés-Sosa
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Tanase DM, Gosav EM, Costea CF, Ciocoiu M, Lacatusu CM, Maranduca MA, Ouatu A, Floria M. The Intricate Relationship between Type 2 Diabetes Mellitus (T2DM), Insulin Resistance (IR), and Nonalcoholic Fatty Liver Disease (NAFLD). J Diabetes Res 2020; 2020:3920196. [PMID: 32832560 PMCID: PMC7424491 DOI: 10.1155/2020/3920196] [Citation(s) in RCA: 209] [Impact Index Per Article: 52.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 07/17/2020] [Indexed: 02/07/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) and type 2 diabetes mellitus (T2DM) remain as one of the most global problematic metabolic diseases with rapidly increasing prevalence and incidence. Epidemiological studies noted that T2DM patients have by two-fold increase to develop NAFLD, and vice versa. This complex and intricate association is supported and mediated by insulin resistance (IR). In this review, we discuss the NAFLD immunopathogenesis, connection with IR and T2DM, the role of screening and noninvasive tools, and mostly the impact of the current antidiabetic drugs on steatosis liver and new potential therapeutic targets.
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Affiliation(s)
- Daniela Maria Tanase
- Department of Internal Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
- Internal Medicine Clinic, “Sf. Spiridon” County Clinical Emergency Hospital, Iasi, Romania
| | - Evelina Maria Gosav
- Department of Internal Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
- Internal Medicine Clinic, “Sf. Spiridon” County Clinical Emergency Hospital, Iasi, Romania
| | - Claudia Florida Costea
- Department of Ophthalmology, “Grigore T. Popa” University of Medicine and Pharmacy, Romania
- 2nd Ophthalmology Clinic, “Prof. Dr. Nicolae Oblu” Emergency Clinical Hospital, Iasi, Romania
| | - Manuela Ciocoiu
- Department of Pathophysiology, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
| | - Cristina Mihaela Lacatusu
- Unit of Diabetes, Nutrition and Metabolic Diseases, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
- Clinical Center of Diabetes, Nutrition and Metabolic Diseases, “Sf. Spiridon” County Clinical Emergency Hospital, Iasi, Romania
| | - Minela Aida Maranduca
- Department of Physiology, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
| | - Anca Ouatu
- Department of Internal Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
- Internal Medicine Clinic, “Sf. Spiridon” County Clinical Emergency Hospital, Iasi, Romania
| | - Mariana Floria
- Department of Internal Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
- Internal Medicine Clinic, Emergency Military Clinical Hospital, Iasi, Romania
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Dwivedi DK, Jena GB. NLRP3 inhibitor glibenclamide attenuates high-fat diet and streptozotocin-induced non-alcoholic fatty liver disease in rat: studies on oxidative stress, inflammation, DNA damage and insulin signalling pathway. Naunyn Schmiedebergs Arch Pharmacol 2019; 393:705-716. [PMID: 31834465 DOI: 10.1007/s00210-019-01773-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 11/12/2019] [Indexed: 12/14/2022]
Abstract
The prevalence of non-alcoholic fatty liver disease (NAFLD) is much higher in diabetic and obese individuals. Combined exposure of high-fat diet (HFD) and single low-dose streptozotocin (STZ) was used to induce type II diabetes-associated NAFLD, as it better replicates the human pathology of fatty liver. Glibenclamide (GLB) is a potent NLRP3 inflammasome inhibitor and possesses anti-inflammatory and anti-oxidant properties. So it was pertinent to investigate its hepatoprotective potential against NAFLD in rat. HFD was provided to rat for 17 consecutive weeks and glibenclamide (GLB; 0.5 and 2.5 mg/kg/day, orally) was administered for the last 12 consecutive weeks. Establishment of NAFLD was clearly indicated by significant increase in liver weight, glucose, triglyceride, cholesterol, % glycosylated haemoglobin and insulin levels, and GLB intervention reduced the same. GLB restored HFD-induced significant increase in ROS, MDA and decrease in GSH. Histopathological studies revealed the macro- and micro-vascular steatosis and mild degree of inflammation in HFD-fed rat compared with control, and GLB intervention reduced the same. HFD exposure significantly increased the DNA damage and apoptosis compared with control, and GLB intervention reduced the same. Immunohistochemical and immunoblotting findings showed that GLB improved the hepatic expressions of inflammatory markers (NLRP3, ASC, caspase-1, IL-1β, NF-κB), anti-oxidant markers (SOD, catalase) and insulin signalling markers (p-AKT, p-GSK-3β, p-IRS). Hepatoprotective effects of GLB was mediated by decreasing the levels of glucose, triglycerides, cholesterol, DNA damage, apoptosis and inflammatory markers, and by improving the anti-oxidant status and insulin signalling pathway in HFD fed rat.
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Affiliation(s)
- Durgesh Kumar Dwivedi
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S., Nagar, Punjab, 160062, India
| | - G B Jena
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S., Nagar, Punjab, 160062, India.
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Dai J, Jiang C, Chen H, Chai Y. Rapamycin Attenuates High Glucose-Induced Inflammation Through Modulation of mTOR/NF-κB Pathways in Macrophages. Front Pharmacol 2019; 10:1292. [PMID: 31736762 PMCID: PMC6831745 DOI: 10.3389/fphar.2019.01292] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 10/09/2019] [Indexed: 12/11/2022] Open
Abstract
Background: The NLRP3 inflammasome is one of the key contributors to impaired wound healing in diabetes. In this study, we assessed the role of rapamycin on high glucose-induced inflammation in THP-1-derived macrophages and investigated the underlying signaling mechanisms. Methods: THP-1-derived macrophages were treated with high glucose to induce NLRP3 inflammasome activation. The cells were pretreated with rapamycin, BAY 11-7082, or PDTC before exposure to HG. mTOR, NF-κB, and NLRP3 inflammasome expression were measured by western blotting. Results: We found that rapamycin reduced NLRP3 inflammasome activation in macrophages. Rapamycin reduced NLRP3 inflammasome activation by inhibiting mTOR phosphorylation and NF-κB activation. Moreover, mTOR siRNA inhibited NF-κB activation, leading to the suppression of NLRP3 inflammasome activation. Conclusion: Rapamycin can ameliorate high glucose-induced NLRP3 inflammasome activation by attenuating the mTOR/NF-κB signaling pathway in macrophages. Rapamycin may act as a possible therapeutic option for high glucose-induced inflammatory response in impaired wound healing in the future.
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Affiliation(s)
| | | | - Hua Chen
- Department of Orthopedic Surgery, Shanghai Jiao Tong University, Affiliated Sixth People’s Hospital, Shanghai, China
| | - Yimin Chai
- Department of Orthopedic Surgery, Shanghai Jiao Tong University, Affiliated Sixth People’s Hospital, Shanghai, China
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Yuan X, Bhat OM, Lohner H, Zhang Y, Li PL. Endothelial acid ceramidase in exosome-mediated release of NLRP3 inflammasome products during hyperglycemia: Evidence from endothelium-specific deletion of Asah1 gene. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1864:158532. [PMID: 31647995 DOI: 10.1016/j.bbalip.2019.158532] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 08/31/2019] [Accepted: 09/13/2019] [Indexed: 12/26/2022]
Abstract
Exosomes have been demonstrated to be one of the mechanisms mediating the release of intracellular signaling molecules to conduct cell-to-cell communication. However, it remains unknown whether and how exosomes mediate the release of NOD-like receptor pyrin domain 3 (NLRP3) inflammasome products such as interleukin-1 beta (IL-1β) from endothelial cells. The present study hypothesized that lysosomal acid ceramidase (AC) determines the fate of multivesicular bodies (MVBs) to control the exosome-mediated release of NLRP3 inflammasome products during hyperglycemia. Using a streptozotocin (STZ)-induced diabetes mouse model, we found that endothelium-specific AC gene knockout mice (Asah1fl/fl/ECcre) significantly enhanced the formation and activation of NLRP3 inflammasomes in coronary arterial ECs (CECs). These mice also had increased thickening of the coronary arterial wall and reduced expression of tight junction protein compared to wild-type (WT/WT) littermates. We also observed the expression of exosome markers such as CD63 and alkaline phosphatase (ALP) was augmented in STZ-treated Asah1fl/fl/ECcre mice compared to WT/WT mice, which was accompanied by an increased IL-1β release of exosomes. In the primary cultures of CECs, we demonstrated that AC deficiency markedly enhanced the formation and activation of NLRP3 inflammasomes, but significantly down-regulated tight junction proteins when these cells were exposed to high levels of glucose. The CECs from Asah1fl/fl/ECcre mice had decreased MVB-lysosome interaction and increased IL-1β-containing exosome release in response to high glucose stimulation. Together, these results suggest that AC importantly controls exosome-mediated release of NLRP3 inflammasome products in CECs, which is enhanced by AC deficiency leading to aggravated arterial inflammatory response during hyperglycemia.
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Affiliation(s)
- Xinxu Yuan
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, School of Medicine, Richmond, VA, USA
| | - Owais M Bhat
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, School of Medicine, Richmond, VA, USA
| | - Hannah Lohner
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, School of Medicine, Richmond, VA, USA
| | - Yang Zhang
- Department of Pharmacological & Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, USA
| | - Pin-Lan Li
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, School of Medicine, Richmond, VA, USA.
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Dai J, Chen H, Chai Y. Advanced Glycation End Products (AGEs) Induce Apoptosis of Fibroblasts by Activation of NLRP3 Inflammasome via Reactive Oxygen Species (ROS) Signaling Pathway. Med Sci Monit 2019; 25:7499-7508. [PMID: 31587010 PMCID: PMC6792499 DOI: 10.12659/msm.915806] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background Type 2 diabetes impairs the healing process and induces apoptosis of fibroblasts, which are thought to be involved in this process. We investigated the possible mechanisms involved in AGEs-induced apoptosis of human dermal fibroblasts. Material/Methods We examined the expression of apoptosis-related proteins in fibroblasts isolated from human diabetic wounds. Human dermal fibroblasts exposed to AGEs were used to study the links among apoptosis, ROS, and NLRP3 inflammasome activation. Signaling mechanisms were evaluated by preincubating the cells with appropriate inhibitors. Cleaved caspase-8, cleaved caspase-3, BAX, Bcl-2, and NLRP3 inflammasome expression were measured by Western blot analysis. ROS generation, cell viability, and cell apoptosis were assessed. Results We observed a higher level of cleaved caspase-8 and cleaved caspase-3 expression in fibroblasts isolated from human diabetic wounds compared with controls. AGEs decreased the proliferation of cells in a concentration-dependent and time-dependent manner. The exposure of fibroblasts to AGEs significantly increased the number of cells in early and late apoptosis stages. AGES-induced human dermal fibroblasts showed high expressions of cleaved caspase3, cleaved caspase8, and Bax. Treatment with AGEs induced the expression of NLRP3, caspase-1, and ASC. AGES-induced apoptosis was blocked by BAY 11–7082, an inhibitor of the NLRP3 inflammasome. AGEs increased the production of ROS in fibroblasts, and its apoptogenic effect was blocked by NAC. Conclusions AGEs cause apoptosis of fibroblasts by inducing the generation of ROS and activating the NLRP3 inflammasome. In vivo experiments are needed to confirm these results.
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Affiliation(s)
- Jiezhi Dai
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, JiaoTong University, Shanghai, China (mainland)
| | - Hua Chen
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, JiaoTong University, Shanghai, China (mainland)
| | - Yimin Chai
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, JiaoTong University, Shanghai, China (mainland)
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Tang G, Duan F, Li W, Wang Y, Zeng C, Hu J, Li H, Zhang X, Chen Y, Tan H. Metformin inhibited Nod-like receptor protein 3 inflammasomes activation and suppressed diabetes-accelerated atherosclerosis in apoE -/- mice. Biomed Pharmacother 2019; 119:109410. [PMID: 31518877 DOI: 10.1016/j.biopha.2019.109410] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/28/2019] [Accepted: 08/28/2019] [Indexed: 01/08/2023] Open
Abstract
AIMS The present study aimed to investigate the effect of metformin on diabetes-accelerated atherosclerosis and whether Nod-like receptor protein 3 (NLRP3) inflammasome is a target for metformin. MATERIALS AND METHODS ApoE-/- male mice were divided randomly into control, streptozocin-induced diabetes mellitus and metformin groups. Metabolic parameters, atherosclerotic lesion, activation of NLRP3 inflammasomes and related signaling pathways were detected. THP-1-differentiated macrophages were used in in vitro experiments. RESULTS Compared with control mice, increased plasma lipids and proinflammatory interleukin-1β, aggravated macrophage infiltration into the atherosclerotic lesion, and accelerated development of atherosclerosis were observed in diabetic mice, which were associated with the activation of NLRP3 inflammasomes and dysregulation of thioredoxin-1 and thioredoxin-interacting protein. Treatment with metformin alleviated diabetes-induced metabolic disorders and atherosclerosis, as well as NLRP3 inflammasomes activation and dysregulation of thioredoxin-1/thioredoxin-interacting protein. In vitro experiments showed that high glucose induced the accumulation of reactive oxygen species and activated NLRP3 inflammasomes, which was significantly suppressed by treatment with metformin or antioxidant N-acetyl-L-cysteine. Moreover, Compound C, an inhibitor of adenosine 5'-monophosphate-activated protein kinase (AMPK), blocked the anti-inflammatory effect of metformin, indicating that metformin inhibited high glucose-induced NLRP3 inflammasomes activation through AMPK activation. Moreover, high glucose decreased thioredoxin-1 expression and increased thioredoxin-interacting protein expression, which was also reversed by metformin. CONCLUSIONS Metformin inhibited NLRP3 inflammasomes activation and suppressed diabetes-accelerated atherosclerosis in apoE-/- mice, which at least partially through activation of AMPK and regulation of thioredoxin-1/thioredoxin-interacting protein.
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Affiliation(s)
- Ge Tang
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Fengqi Duan
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Weixuan Li
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Yiqin Wang
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Cheng Zeng
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Jia Hu
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Hongyu Li
- Laboratory Animal Center, Sun Yat-sen University, Guangzhou 510080, China
| | - Xuanhong Zhang
- Laboratory Animal Center, Sun Yat-sen University, Guangzhou 510080, China
| | - Yanming Chen
- Department of Endocrinology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China; Guangdong Provincial Key Laboratory of Diabetology, Guangzhou, 510630, China.
| | - Hongmei Tan
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China; Laboratory Animal Center, Sun Yat-sen University, Guangzhou 510080, China.
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Abstract
Sepsis was known to ancient Greeks since the time of great physician Hippocrates (460-377 BC) without exact information regarding its pathogenesis. With time and medical advances, it is now considered as a condition associated with organ dysfunction occurring in the presence of systemic infection as a result of dysregulation of the immune response. Still with this advancement, we are struggling for the development of target-based therapeutic approach for the management of sepsis. The advancement in understanding the immune system and its working has led to novel discoveries in the last 50 years, including different pattern recognition receptors. Inflammasomes are also part of these novel discoveries in the field of immunology which are <20 years old in terms of their first identification. They serve as important cytosolic pattern recognition receptors required for recognizing cytosolic pathogens, and their pathogen-associated molecular patterns play an important role in the pathogenesis of sepsis. The activation of both canonical and non-canonical inflammasome signaling pathways is involved in mounting a proinflammatory immune response via regulating the generation of IL-1β, IL-18, IL-33 cytokines and pyroptosis. In addition to pathogens and their pathogen-associated molecular patterns, death/damage-associated molecular patterns and other proinflammatory molecules involved in the pathogenesis of sepsis affect inflammasomes and vice versa. Thus, the present review is mainly focused on the inflammasomes, their role in the regulation of immune response associated with sepsis, and their targeting as a novel therapeutic approach.
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Affiliation(s)
- Vijay Kumar
- Children's Health Queensland Clinical Unit, School of Clinical Medicine, Faculty of Medicine, Mater Research, University of Queensland, Brisbane, Australia,
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, Australia,
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Ward MG, Li G, Hao M. Apoptotic β-cells induce macrophage reprogramming under diabetic conditions. J Biol Chem 2018; 293:16160-16173. [PMID: 30213857 DOI: 10.1074/jbc.ra118.004565] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 09/06/2018] [Indexed: 12/22/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) occurs when insulin-producing pancreatic β-cells fail to secrete sufficient insulin to compensate for insulin resistance. As T2DM progresses, apoptotic β-cells need to be removed by macrophages through efferocytosis that is anti-inflammatory by nature. Paradoxically, infiltrating macrophages are a main source of inflammatory cytokines that leads to T2DM. It is unclear how apoptotic β-cells impact macrophage function. We show under diabetic conditions, phagocytosis of apoptotic β-cells causes lysosomal permeabilization and generates reactive oxygen species that lead to inflammasome activation and cytokine secretion in macrophages. Efferocytosis-induced lipid accumulation transforms islet macrophages into foam cell-like outside the context of atherosclerosis. Our study suggests that whereas macrophages normally play a protective anti-inflammatory role, the increasing demand of clearing apoptotic cells may trigger them to undergo proinflammatory reprogramming as T2DM progresses. This shift in the balance between opposing macrophage inflammatory responses could contribute to chronic inflammation involved in metabolic diseases. Our study highlights the importance of preserving macrophage lysosomal function as a therapeutic intervention for diabetes progression.
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Affiliation(s)
- Meliza G Ward
- From the Department of Biochemistry, Weill Medical College of Cornell University, New York, New York 10065
| | - Ge Li
- From the Department of Biochemistry, Weill Medical College of Cornell University, New York, New York 10065
| | - Mingming Hao
- From the Department of Biochemistry, Weill Medical College of Cornell University, New York, New York 10065
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