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Wang Y, Geng X, Guo Z, Chu D, Liu R, Cheng B, Cui H, Li C, Li J, Li Z. M2 macrophages promote subconjunctival fibrosis through YAP/TAZ signalling. Ann Med 2024; 56:2313680. [PMID: 38335557 PMCID: PMC10860428 DOI: 10.1080/07853890.2024.2313680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
PURPOSE To evaluate the role of M2 macrophages in subconjunctival fibrosis after silicone implantation (SI) and investigate the underlying mechanisms. MATERIALS AND METHODS A model of subconjunctival fibrosis was established by SI surgery in rabbit eyes. M2 distribution and collagen deposition were evaluated by histopathology. The effects of M2 cells on the migration (using wound-scratch assay) and activation (by immunofluorescence and western blotting) of human Tenon's fibroblasts (HTFs) were investigated. RESULTS There were more M2 macrophages (CD68+/CD206+ cells) occurring in tissue samples around silicone implant at 2 weeks postoperatively. Dense collagen deposition was observed at 8 weeks after SI. In vitro experiment showed M2 expressed high level of CD206 and transforming growth factor-β1 (TGF-β1). The M2-conditioned medium promoted HTFs migration and the synthesis of collagen I and fibronectin. Meanwhile, M2-conditioned medium increased the protein levels of TGF-β1, TGF-βR II, p-Smad2/3, yes-associated protein (YAP), and transcriptional coactivator with PDZ-binding motif (TAZ). Verteporfin, a YAP inhibitor, suppressedTGF-β1/Smad2/3-YAP/TAZ pathway and attenuated M2-induced extracellular matrix deposition by HTFs. CONCLUSIONS TGF-β1/Smad2/3-YAP/TAZ signalling may be involved in M2-induced fibrotic activities in HTFs. M2 plays a key role in promoting subconjunctival fibrosis and can serve as an attractive target for anti-fibrotic therapeutics.
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Affiliation(s)
- Yiwei Wang
- Henan Eye Hospital, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Xingchen Geng
- Henan Eye Hospital, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhihua Guo
- Henan Eye Hospital, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Dandan Chu
- Henan Eye Hospital, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Ruixing Liu
- Henan Eye Hospital, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Boyuan Cheng
- Henan Eye Hospital, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Haohao Cui
- Henan Eye Hospital, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Chengcheng Li
- Henan Eye Hospital, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Jingguo Li
- Henan Eye Hospital, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhanrong Li
- Henan Eye Hospital, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
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2
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Kang B, Jia Z, Dong Y, Li W, Zhang W. Recombinant human annexin A5 accelerates diabetic wounds healing by regulating skin inflammation. Regen Ther 2024; 27:342-353. [PMID: 38645281 PMCID: PMC11031805 DOI: 10.1016/j.reth.2024.03.013] [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: 01/19/2024] [Revised: 03/03/2024] [Accepted: 03/15/2024] [Indexed: 04/23/2024] Open
Abstract
Background One of the key obstacles to the healing of diabetic wound is the persistence of active inflammation. We previously demonstrated the potential of cell-free fat extract (CEFFE) to promote the healing of diabetic wounds, and annexin A5 (A5) is a crucial anti-inflammatory protein within CEFFE. This study aimed to evaluate the therapeutic potential of A5 in diabetic wounds. Methods A5 was loaded into GelMA hydrogels and applied to skin wounds of diabetic mice in vivo. The diabetic wounds with the treatment of GelMA-A5 were observed for 14 days and evaluated by histological analysis. Accessment of inflammation regulation were conducted through anti-CD68 staining, anti-CD86 and anti-CD206 staining, and qRT-PCR of wound tissue. In presence of A5, macrophages stimulated by lipopolysaccharide (LPS) in vitro, and detected through qRT-PCR, flow cytometry, and immunocytofluorescence staining. Besides, epithelial cells were co-cultured with A5 for epithelialization regulation by CCK-8 assay and cell migration assay. Results A5 could promote diabetic wound healing and regulate inflammations by promoting the transition of macrophages from M1 to M2 phenotype. In vitro experiments demonstrated that A5 exerted a significant effect on reducing pro-inflammatory factors and inhibiting the polarization of macrophages from M0 toward M1 phenotype. A5 significantly promoted the migration of epithelial cells. Conclusion Annexin A5 has a significant impact on the regulation of macrophage inflammation and promotion of epithelialization.
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Affiliation(s)
- Bijun Kang
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai 200011, China
| | - Zhuoxuan Jia
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai 200011, China
| | - Yushan Dong
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai 200011, China
| | - Wei Li
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai 200011, China
| | - Wenjie Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai 200011, China
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He S, Zhuo Y, Cui L, Zhang S, Tu Z, Wang M, Lv X, Ge L, Lin J, Yang L, Wang X. Naringin dihydrochalcone alleviates sepsis-induced acute lung injury via improving gut microbial homeostasis and activating GPR18 receptor. Int Immunopharmacol 2024; 137:112418. [PMID: 38901244 DOI: 10.1016/j.intimp.2024.112418] [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: 03/22/2024] [Revised: 05/17/2024] [Accepted: 06/03/2024] [Indexed: 06/22/2024]
Abstract
Acute lung injury (ALI) is a life-threatening disease characterized by severe lung inflammation and intestinal microbiota disorder. The GPR18 receptor has been demonstrated to be a potential therapeutic target against ALI. Extracting Naringin dihydrochalcone (NDC) from the life-sustaining orange peel is known for its diverse anti-inflammatory properties, yet the specific action target remains uncertain. In the present study, we identified NDC as a potential agonist of the GPR18 receptor using virtual screening and investigated the pharmacological effects of NDC on sepsis-induced acute lung injury in rats and explored underlying mechanisms. In in vivo experiments, CLP-induced ALI model was established by cecum puncture and treated with NDC gavage one hour prior to drug administration, lung histopathology and inflammatory cytokines were evaluated, and feces were subjected to 16s rRNA sequencing and untargeted metabolomics analysis. In in vitro experiments, the anti-inflammatory properties were exerted by evaluating NDC targeting the GPR18 receptor to inhibit lipopolysaccharide (LPS)-induced secretion of TNF-α, IL-6, IL-1β and activation of inflammatory signaling pathways in MH-S cells. Our findings showed that NDC significantly ameliorated lung damage and pro-inflammatory cytokine levels (TNF-α, IL-6, IL-1β) in both cells and lung tissues via inhibiting the activation of STAT3, NF-κB, and NLRP3 inflammatory signaling pathways through GRP18 receptor activation. In addition, NDC can also partly reverse the imbalance of gut microbiota composition caused by CLP via increasing the proportion of Firmicutes/Bacteroidetes and Lactobacillus and decreasing the relative abundance of Proteobacteria. Meanwhile, the fecal metabolites in the NDC treatment group also significantly were changed, including decreased secretion of Phenylalanin, Glycine, and bile secretion, and increased secretion of Lysine. In conclusion, these findings suggest that NDC can alleviate sepsis-induced ALI via improving gut microbial homeostasis and metabolism and mitigate inflammation via activating GPR18 receptor. In conclusion, the results indicate that NDC, derived from the typical orange peel of food, could significantly contribute to development by enhancing intestinal microbial balance and metabolic processes, and reducing inflammation by activating the GPR18 receptor, thus mitigating sepsis-induced ALI and expanding the range of functional foods.
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Affiliation(s)
- Siqi He
- Graduate School, Tianjin Medical University, Tianjin 300270, China
| | - Yuzhen Zhuo
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, Tianjin NanKai Hospital Tianjin Medical University, Tianjin 300100, China
| | - Lingzhi Cui
- Graduate School, Tianjin Medical University, Tianjin 300270, China
| | - Sijia Zhang
- Graduate School, Tianjin Medical University, Tianjin 300270, China
| | - Zhengwei Tu
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, Tianjin NanKai Hospital Tianjin Medical University, Tianjin 300100, China
| | - Mukuo Wang
- College of Pharmacy, Nankai University, Tianjin 300071, China
| | - Xinyue Lv
- College of Pharmacy, Nankai University, Tianjin 300071, China
| | - Lixiu Ge
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, Tianjin NanKai Hospital Tianjin Medical University, Tianjin 300100, China
| | - Jianping Lin
- College of Pharmacy, Nankai University, Tianjin 300071, China.
| | - Lei Yang
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, Tianjin NanKai Hospital Tianjin Medical University, Tianjin 300100, China.
| | - Ximo Wang
- Graduate School, Tianjin Medical University, Tianjin 300270, China; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Artificial Cell Engineering Technology Research Center, Tianjin Institute of Hepatobiliary Disease, Tianjin Medical University Third Center Clinical College, Tianjin 300170, China.
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Wen JP, Ou SJ, Liu JB, Zhang W, Qu YD, Li JX, Xia CL, Yang Y, Qi Y, Xu CP. Global trends in publications regarding macrophages-related diabetic foot ulcers in the last two decades. World J Diabetes 2024; 15:1627-1644. [DOI: 10.4239/wjd.v15.i7.1627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/12/2024] [Accepted: 06/12/2024] [Indexed: 07/08/2024] Open
Abstract
BACKGROUND Diabetic foot ulcers (DFUs) are one of the most severe and popular complications of diabetes. The persistent non-healing of DFUs is the leading cause of ampu-tation, which causes significant mental and financial stress to patients and their families. Macrophages are critical cells in wound healing and perform essential roles in all phases of wound healing. However, no studies have been carried out to systematically illustrate this area from a scientometric point of view. Although there have been some bibliometric studies on diabetes, reports focusing on the investigation of macrophages in DFUs are lacking.
AIM To perform a bibliometric analysis to systematically assess the current state of research on macrophage-related DFUs.
METHODS The publications of macrophage-related DFUs from January 1, 2004, to December 31, 2023, were retrieved from the Web of Science Core Collection on January 9, 2024. Four different analytical tools: VOSviewer (v1.6.19), CiteSpace (v6.2.R4), HistCite (v12.03.07), and Excel 2021 were used for the scientometric research.
RESULTS A total of 330 articles on macrophage-related DFUs were retrieved. The most published countries, institutions, journals, and authors in this field were China, Shanghai Jiao Tong University of China, Wound Repair and Regeneration, and Aristidis Veves. Through the analysis of keyword co-occurrence networks, historical direct citation networks, thematic maps, and trend topics maps, we synthesized the prevailing research hotspots and emerging trends in this field.
CONCLUSION Our bibliometric analysis provides a comprehensive overview of macrophage-related DFUs research and insights into promising upcoming research.
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Affiliation(s)
- Jian-Ping Wen
- Department of Orthopaedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510000, Guangdong Province, China
| | - Shuan-Ji Ou
- Department of Orthopaedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510000, Guangdong Province, China
| | - Jia-Bao Liu
- Department of Orthopaedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510000, Guangdong Province, China
| | - Wei Zhang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510000, Guangdong Province, China
| | - Yu-Dun Qu
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510000, Guangdong Province, China
| | - Jia-Xuan Li
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510000, Guangdong Province, China
| | - Chang-Liang Xia
- Department of Orthopaedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510000, Guangdong Province, China
| | - Yang Yang
- Department of Orthopaedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510000, Guangdong Province, China
| | - Yong Qi
- Department of Orthopaedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510000, Guangdong Province, China
| | - Chang-Peng Xu
- Department of Orthopaedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510000, Guangdong Province, China
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Xie C, Ma J, Luo M, Wang Y, Lei B. Bioactive poly(salicylic acid)-poly(citric acid) scaffolds improve diabetic wound repair via regulating HIF-1α, Nrf2 and macrophage. J Biomed Mater Res A 2024; 112:1149-1163. [PMID: 38461474 DOI: 10.1002/jbm.a.37696] [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: 09/26/2023] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 03/12/2024]
Abstract
Diabetic wounds environment is over-oxidized, over-inflammatory, leading to difficulties in regenerating blood vessels, and retardation of healing in diabetic wounds. Therefore, diabetic wounds can be treated from the perspective of scavenging oxidative free radicals and reducing the level of inflammation. Herein, we report a bioactive poly(salicylic acid)-poly(citric acid) (FPSa-PCG) hydrogel for diabetic wound repair. The FPSa-PCG hydrogel shows abilities of antioxidation, anti-inflammation, and regulation of macrophage phenotype. The FPSa-PCG hydrogel showed good biocompatibility, and obtain the abilities of promotion of macrophages migration, reduction of ROS generation, suppression of the M1-type macrophage polarization. FPSa and PCG could synergistically enhance the angiogenesis through upregulating the mRNA expression of HIF1Α, VEGF, and CD31 in endothelial cells and reduce the ROS level of macrophages through upregulating the mRNA expression of Nrf2. The in vivo diabetic wound model confirmed the promoting effect of FPSa-PCG hydrogel on wound closure in diabetes. The further studies found that FPSa-PCG hydrogel could induce the CD31 protein expression in the subcutaneous tissue and inhibit the TNF-a protein expression. This work shows that the simple composition FPSa-PCG hydrogel has a promising therapeutic potential in the treatment of diabetic wounds.
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Affiliation(s)
- Chenxi Xie
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Junping Ma
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Meng Luo
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Yidan Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Bo Lei
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, People's Republic of China
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, People's Republic of China
- Department of Orthopedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, People's Republic of China
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Qi X, Liu C, Si J, Yin B, Huang J, Wang X, Huang J, Sun H, Zhu C, Zhang W. A bioenergetically-active ploy (glycerol sebacate)-based multiblock hydrogel improved diabetic wound healing through revitalizing mitochondrial metabolism. Cell Prolif 2024; 57:e13613. [PMID: 38351579 PMCID: PMC11216945 DOI: 10.1111/cpr.13613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/16/2024] [Accepted: 01/30/2024] [Indexed: 07/03/2024] Open
Abstract
Diabetic wounds impose significant burdens on patients' quality of life and healthcare resources due to impaired healing potential. Factors like hyperglycemia, oxidative stress, impaired angiogenesis and excessive inflammation contribute to the delayed healing trajectory. Mounting evidence indicates a close association between impaired mitochondrial function and diabetic complications, including chronic wounds. Mitochondria are critical for providing energy essential to wound healing processes. However, mitochondrial dysfunction exacerbates other pathological factors, creating detrimental cycles that hinder healing. This study conducted correlation analysis using clinical specimens, revealing a positive correlation between mitochondrial dysfunction and oxidative stress, inflammatory response and impaired angiogenesis in diabetic wounds. Restoring mitochondrial function becomes imperative for developing targeted therapies. Herein, we synthesized a biodegradable poly (glycerol sebacate)-based multiblock hydrogel, named poly (glycerol sebacate)-co-poly (ethylene glycol)-co-poly (propylene glycol) (PEPGS), which can be degraded in vivo to release glycerol, a crucial component in cellular metabolism, including mitochondrial respiration. We demonstrate the potential of PEPGS-based hydrogels to improve outcomes in diabetic wound healing by revitalizing mitochondrial metabolism. Furthermore, we investigate the underlying mechanism through proteomics analysis, unravelling the regulation of ATP and nicotinamide adenine dinucleotide metabolic processes, biosynthetic process and generation during mitochondrial metabolism. These findings highlight the therapeutic potential of PEPGS-based hydrogels as advanced wound dressings for diabetic wound healing.
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Affiliation(s)
- Xin Qi
- Department of Orthopedic SurgeryShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
- Department of Orthopedic Surgery, Shanghai Institute of Microsurgery on ExtremitiesShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Chenjun Liu
- Department of Orthopedic SurgeryShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Jingyi Si
- Department of Gastroenterology and Hepatology, Zhongshan HospitalFudan UniversityShanghaiChina
| | - Bohao Yin
- Department of Orthopedic SurgeryShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Jingjing Huang
- Department of Orthopedic SurgeryShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Xin Wang
- Department of Orthopedic SurgeryShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Jinghuan Huang
- Department of Orthopedic SurgeryShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Hui Sun
- Department of Orthopedic SurgeryShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Changfeng Zhu
- Department of Gastroenterology and Hepatology, Zhongshan HospitalFudan UniversityShanghaiChina
| | - Wei Zhang
- Department of Orthopedic SurgeryShanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
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Mol BA, Wasinda JJ, Xu YF, Gentle NL, Meyer V. 1,25-dihydroxyvitamin D 3 augments low-dose PMA-based monocyte-to-macrophage differentiation in THP-1 cells. J Immunol Methods 2024; 532:113716. [PMID: 38960065 DOI: 10.1016/j.jim.2024.113716] [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: 03/18/2024] [Revised: 06/24/2024] [Accepted: 06/29/2024] [Indexed: 07/05/2024]
Abstract
The human monocytic THP-1 cell line is the most routinely employed in vitro model for studying monocyte-to-macrophage differentiation. Despite the wide use of this model, differentiation protocols using phorbol 12-myristate-13-acetate (PMA) or 1,25-dihydroxyvitamin D3 (1,25D3) vary drastically between studies. Given that differences in differentiation protocols have the potential to impact the characteristics of the macrophages produced, we aimed to assess the efficacy of three different THP-1 differentiation protocols by assessing changes in morphology and gene- and cell surface macrophage marker expression. THP-1 cells were differentiated with either 5 nM PMA, 10 nM 1,25D3, or a combination thereof, followed by a rest period. The results indicated that all three protocols significantly increased the expression of the macrophage markers, CD11b (p < 0.001) and CD14 (p < 0.010). Despite this, THP-1 cells exposed to 1,25D3 alone did not adopt the morphological and expression characteristics associated with macrophages. PMA was required to produce these characteristics, which were found to be more pronounced in the presence of 1,25D3. Both PMA- and PMA with 1,25D3-differentiated THP-1 cells were capable of M1 and M2 macrophage polarization, though the gene expression of polarization-associated markers was most pronounced in PMA with 1,25D3-differentiated THP-1 cells. Moreover, the combination of PMA with 1,25D3 appeared to support the process of commitment to a particular polarization state.
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Affiliation(s)
- Bronwyn A Mol
- School of Molecular and Cell Biology, University of the Witwatersrand, Private Bag 3, WITS, Johannesburg 2050, South Africa
| | - Janet J Wasinda
- School of Molecular and Cell Biology, University of the Witwatersrand, Private Bag 3, WITS, Johannesburg 2050, South Africa
| | - Yi F Xu
- School of Molecular and Cell Biology, University of the Witwatersrand, Private Bag 3, WITS, Johannesburg 2050, South Africa
| | - Nikki L Gentle
- School of Molecular and Cell Biology, University of the Witwatersrand, Private Bag 3, WITS, Johannesburg 2050, South Africa.
| | - Vanessa Meyer
- School of Molecular and Cell Biology, University of the Witwatersrand, Private Bag 3, WITS, Johannesburg 2050, South Africa.
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Shan W, Cui J, Song Y, Yan D, Feng L, Jian Y, Yi W, Sun Y. Itaconate as a key player in cardiovascular immunometabolism. Free Radic Biol Med 2024; 219:64-75. [PMID: 38604314 DOI: 10.1016/j.freeradbiomed.2024.04.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 03/23/2024] [Accepted: 04/09/2024] [Indexed: 04/13/2024]
Abstract
Cardiovascular diseases (CVDs) are the leading cause of death globally, resulting in a major health burden. Thus, an urgent need exists for exploring effective therapeutic targets to block progression of CVDs and improve patient prognoses. Immune and inflammatory responses are involved in the development of atherosclerosis, ischemic myocardial damage responses and repair, calcification, and stenosis of the aortic valve. These responses can involve both large and small blood vessels throughout the body, leading to increased blood pressure and end-organ damage. While exploring potential avenues for therapeutic intervention in CVDs, researchers have begun to focus on immune metabolism, where metabolic changes that occur in immune cells in response to exogenous or endogenous stimuli can influence immune cell effector responses and local immune signaling. Itaconate, an intermediate metabolite of the tricarboxylic acid (TCA) cycle, is related to pathophysiological processes, including cellular metabolism, oxidative stress, and inflammatory immune responses. The expression of immune response gene 1 (IRG1) is upregulated in activated macrophages, and this gene encodes an enzyme that catalyzes the production of itaconate from the TCA cycle intermediate, cis-aconitate. Itaconate and its derivatives have exerted cardioprotective effects through immune modulation in various disease models, such as ischemic heart disease, valvular heart disease, vascular disease, heart transplantation, and chemotherapy drug-induced cardiotoxicity, implying their therapeutic potential in CVDs. In this review, we delve into the associated signaling pathways through which itaconate exerts immunomodulatory effects, summarize its specific roles in CVDs, and explore emerging immunological therapeutic strategies for managing CVDs.
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Affiliation(s)
- Wenju Shan
- Department of Geriatrics, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Jun Cui
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yujie Song
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Dongxu Yan
- Department of Geriatrics, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Linqi Feng
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yuhong Jian
- Department of General Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Wei Yi
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China.
| | - Yang Sun
- Department of Geriatrics, Xijing Hospital, The Fourth Military Medical University, Xi'an, China.
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Song Y, Wang Y, Li J, Shen Y, Hou Y, Fu Z, Fang L, Jin B, Chen L. CD226 promotes renal fibrosis by regulating macrophage activation and migration. J Leukoc Biol 2024; 116:103-117. [PMID: 38660893 DOI: 10.1093/jleuko/qiae054] [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: 09/01/2023] [Revised: 01/29/2024] [Accepted: 02/21/2024] [Indexed: 04/26/2024] Open
Abstract
It has been found that CD226 plays an important role in regulating macrophage function, but its expression and function in macrophages during renal fibrogenesis have not been studied. Our data demonstrated that CD226 expression in macrophages was obviously upregulated in the unilateral ureteral obstruction model, while CD226 deficiency attenuated collagen deposition in renal interstitium along with fewer M1 within renal cortex and renal medulla and a lower level of proinflammatory factors compared to that of control littermates. Further studies demonstrated that Cd226-/- bone marrow-derived macrophages transferring could significantly reduce the tubular injury, collagen deposition, and proinflammatory cytokine secretion compared with that of Cd226+/+ bone marrow-derived macrophages transferring in the unilateral ureteral obstruction model. Mechanistic investigations revealed that CD226 promoted proinflammatory M1 macrophage accumulation in the kidney via suppressing KLF4 expression in macrophages. Therefore, our results uncovered a pathogenic role of CD226 during the development of chronic kidney disease by promoting monocyte infiltration from peripheral blood into the kidney and enhancing macrophage activation toward the inflammatory phenotype by suppressing KLF4 expression.
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Affiliation(s)
- Yun Song
- Department of Immunology, Air Force Medical University, No.169, Changle West Road, Xincheng District, Xi'an 710032, ShaanXi, China
| | - Yazhen Wang
- Department of Immunology, Air Force Medical University, No.169, Changle West Road, Xincheng District, Xi'an 710032, ShaanXi, China
| | - Juan Li
- College of Life Sciences, Northwest University, No.229, Taibai North Road, Beilin District, Xi'an 710069, ShaanXi, China
| | - Yuting Shen
- Department of Immunology, Air Force Medical University, No.169, Changle West Road, Xincheng District, Xi'an 710032, ShaanXi, China
| | - Yongli Hou
- Department of Immunology, Air Force Medical University, No.169, Changle West Road, Xincheng District, Xi'an 710032, ShaanXi, China
| | - Zhaoyue Fu
- Department of Immunology, Air Force Medical University, No.169, Changle West Road, Xincheng District, Xi'an 710032, ShaanXi, China
| | - Liang Fang
- Department of Immunology, Air Force Medical University, No.169, Changle West Road, Xincheng District, Xi'an 710032, ShaanXi, China
| | - Boquan Jin
- Department of Immunology, Air Force Medical University, No.169, Changle West Road, Xincheng District, Xi'an 710032, ShaanXi, China
| | - Lihua Chen
- Department of Immunology, Air Force Medical University, No.169, Changle West Road, Xincheng District, Xi'an 710032, ShaanXi, China
- College of Life Sciences, Northwest University, No.229, Taibai North Road, Beilin District, Xi'an 710069, ShaanXi, China
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Liu F, Xu X, Sun T. Vascular endothelial growth factor accelerates healing of foot ulcers in diabetic rats via promoting M2 macrophage polarization. Diabet Med 2024:e15388. [PMID: 38934613 DOI: 10.1111/dme.15388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 05/16/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024]
Abstract
AIM The objective was to investigate the specific role and the regulatory mechanism of vascular endothelial growth factor (VEGF) during wound healing in diabetic foot ulcer (DFU). METHODS Streptozotocin-induced diabetic rats were used to establish a DFU animal model. VEGF and Axitinib (a specific inhibitor of VEGFR) were used for treatment in vivo. The wounds at different time points were imaged and histological analysis of the wounds were performed by haematoxylin and eosin (H&E) staining and Masson's trichrome staining. Immunohistochemical staining was conducted to examine CD31 and eNOS expression in the wounds. Immunofluorescence assay and quantitative real-time PCR were performed to examine macrophage markers. In addition, THP-1 was differentiated to macrophages, and then treated with interleukin (IL)-4 to induce M2 macrophages, followed by VEGF treatment. The conditional medium (CM) from VEGF-mediated macrophages were collected to culture human dermal fibroblasts (HDFs). Cell viability and migration were measured by Cell Counting Kit (CCK)-8, wound-healing and Transwell assays, respectively. RESULTS VEGF treatment remarkably accelerated wound healing of DFU rats. VEGF promoted collagen deposition and elevated CD31 and eNOS expression, confirming the pro-angiogenesis of VEGF around diabetic wound in rats. Meanwhile, VEGF restricted pro-inflammatory cytokines and increased F4/80 and CD206 expression, highlighting the activated macrophages and enhanced M2 macrophages following VEGF treatment in diabetic wounds of DFU rats. However, Axitinib exerted an opposite function to VEGF in DFU rats. Moreover, VEGF directly promoted macrophage polarization toward M2 phenotype in vitro, and the CM from VEGF-mediated M2 macrophages markedly promoted HDFs proliferation, migration and collagen deposition. CONCLUSION VEGF might accelerate the wound healing of DFU through promoting M2 macrophage polarization and fibroblast migration.
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Affiliation(s)
- Fei Liu
- Department of Hand, Foot and Ankle Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Xianrui Xu
- Department of Neurology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Tao Sun
- Department of Burn and Plastic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
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11
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Chen ZY, Chen SH, Chen SH, Chou PY, Kuan CY, Yang IH, Chang CT, Su YC, Lin FH. Bletilla striata Polysaccharide-Containing Carboxymethyl Cellulose Bilayer Structure Membrane for Prevention of Postoperative Adhesion and Achilles Tendon Repair. Biomacromolecules 2024. [PMID: 38935055 DOI: 10.1021/acs.biomac.4c00463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Postoperative tissue adhesion and poor tendon healing are major clinical problems associated with tendon surgery. To avoid postoperative adhesion and promote tendon healing, we developed and synthesized a membrane to wrap the surgical site after tendon suturing. The bilayer-structured porous membrane comprised an outer layer [1,4-butanediol diglycidyl ether cross-linked with carboxymethyl cellulose (CX)] and an inner layer [1,4-butanediol diglycidyl ether cross-linked with Bletilla striata polysaccharides and carboxymethyl cellulose (CXB)]. The morphology, chemical functional groups, and membrane structure were determined. In vitro experiments revealed that the CX/CXB membrane demonstrated good biosafety and biodegradability, promoted tenocyte proliferation and migration, and exhibited low cell attachment and anti-inflammatory effects. Furthermore, in in vivo animal study, the CX/CXB membrane effectively reduced postoperative tendon-peripheral tissue adhesion and improved tendon repair, downregulating inflammatory cytokines in the tendon tissue at the surgical site, which ultimately increased tendon strength by 54% after 4 weeks.
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Affiliation(s)
- Zhi-Yu Chen
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei 10617, Taiwan, ROC
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan, ROC
| | - Shih-Heng Chen
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei 10617, Taiwan, ROC
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University and Medical College, Taoyuan 33305, Taiwan, ROC
| | - Shih-Hsien Chen
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei 10617, Taiwan, ROC
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University and Medical College, Taoyuan 33305, Taiwan, ROC
| | - Pang-Yun Chou
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University and Medical College, Taoyuan 33305, Taiwan, ROC
| | - Che-Yung Kuan
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei 10617, Taiwan, ROC
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan, ROC
| | - I-Hsuan Yang
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei 10617, Taiwan, ROC
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan, ROC
| | - Chia-Tien Chang
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan, ROC
| | - Yi-Chun Su
- Institute of Molecular and Cellular Biology, College of Life Science, National Tsing Hua University, Hsinchu 300044, Taiwan, ROC
| | - Feng-Huei Lin
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei 10617, Taiwan, ROC
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan, ROC
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12
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Meng X, Mao H, Wan M, Lu L, Chen Z, Zhang L. Mitochondrial homeostasis in odontoblast: Physiology, pathogenesis and targeting strategies. Life Sci 2024; 352:122797. [PMID: 38917871 DOI: 10.1016/j.lfs.2024.122797] [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: 02/17/2024] [Revised: 04/15/2024] [Accepted: 06/04/2024] [Indexed: 06/27/2024]
Abstract
Caries and pulpitis remain a major global disease burden and affect the quality of life of patients. Odontoblasts are key players in the progression of caries and pulpitis, not only secreting and mineralizing to form dentin, but also acting as a wall of defense to initiate immune defenses. Mitochondrion is an information processor for numerous cellular activities, and dysregulation of mitochondrion homeostasis not only affects cellular metabolism but also triggers a wide range of diseases. Elucidating mitochondrial homeostasis in odontoblasts can help deepen scholars' understanding of odontoblast-associated diseases. Articles on mitochondrial homeostasis in odontoblasts were evaluated for information pertinent to include in this narrative review. This narrative review focused on understanding the complex interplay between mitochondrial homeostasis in odontoblasts under physiological and pathological conditions. Furthermore, mitochondria-centered therapeutic strategies (including mitochondrial base editing, targeting platforms, and mitochondrial transplantation) were emphasized by resolving key genes that regulate mitochondrial function. Mitochondria are involved in odontoblast differentiation and function, and act as mitochondrial danger-associated molecular patterns (mtDAMPs) to mediate odontoblast pathological progression. Novel mitochondria-centered therapeutic strategies are particularly attractive as emerging therapeutic approaches for the maintenance of mitochondrial homeostasis. It is expected to probe key events of odontoblast differentiation and advance the clinical resolution of dentin formation and mineralization disorders and odontoblast-related diseases.
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Affiliation(s)
- Xiang Meng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China.
| | - Hanqing Mao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China.
| | - Minting Wan
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China.
| | - Linxin Lu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China.
| | - Zhi Chen
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China; Department of Endodontics, School and Hospital of Stomatology, Wuhan University, HongShan District, LuoYu Road No. 237, Wuhan 430079, China.
| | - Lu Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China; Department of Endodontics, School and Hospital of Stomatology, Wuhan University, HongShan District, LuoYu Road No. 237, Wuhan 430079, China.
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13
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Barbosa-Matos C, Borges-Pereira C, Libório-Ramos S, Fernandes R, Oliveira M, Mendes-Frias A, Silvestre R, Osório NS, Bastos HN, Santos RF, Guimarães S, Morais A, Mazzone M, Carvalho A, Cunha C, Costa S. Deregulated immune cell recruitment orchestrated by c-MET impairs pulmonary inflammation and fibrosis. Respir Res 2024; 25:257. [PMID: 38909206 PMCID: PMC11193258 DOI: 10.1186/s12931-024-02884-1] [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: 01/31/2024] [Accepted: 06/13/2024] [Indexed: 06/24/2024] Open
Abstract
BACKGROUND Pulmonary fibrosis (PF) represents the pathologic end stage of several interstitial lung diseases (ILDs) associated with high morbidity and mortality rates. However, current treatments can only delay disease progression rather than provide a cure. The role of inflammation in PF progression is well-established, but new insights into immune regulation are fundamental for developing more efficient therapies. c-MET signaling has been implicated in the migratory capacity and effector functions of immune cells. Nevertheless, the role of this signaling pathway in the context of PF-associated lung diseases remains unexplored. METHODS To determine the influence of c-MET in immune cells in the progression of pulmonary fibrosis, we used a conditional deletion of c-Met in immune cells. To induce pulmonary fibrosis mice were administered with bleomycin (BLM) intratracheally. Over the course of 21 days, mice were assessed for weight change, and after euthanasia at different timepoints, bronchoalveolar lavage fluid cells and lung tissue were assessed for inflammation and fibrosis. Furthermore, c-MET expression was assessed in cryobiopsy sections, bronchoalveolar lavage fluid cells samples and single cell RNA-sequencing dataset from human patients with distinct interstitial lung diseases. RESULTS c-MET expression was induced in lung immune cells, specifically in T cells, interstitial macrophages, and neutrophils, during the inflammatory phase of BLM-induced PF mouse model. Deletion of c-Met in immune cells correlated with earlier weight recovery and improved survival of BLM-treated mice. Moreover, the deletion of c-Met in immune cells was associated with early recruitment of the immune cell populations, normally found to express c-MET, leading to a subsequent attenuation of the cytotoxic and proinflammatory environment. Consequently, the less extensive inflammatory response, possibly coupled with tissue repair, culminated in less exacerbated fibrotic lesions. Furthermore, c-MET expression was up-regulated in lung T cells from patients with fibrosing ILD, suggesting a potential involvement of c-MET in the development of fibrosing disease. CONCLUSIONS These results highlight the critical contribution of c-MET signaling in immune cells to their enhanced uncontrolled recruitment and activation toward a proinflammatory and profibrotic phenotype, leading to the exacerbation of lung injury and consequent development of fibrosis.
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Affiliation(s)
- Catarina Barbosa-Matos
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, Braga, 4710-057, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Caroline Borges-Pereira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, Braga, 4710-057, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Sofia Libório-Ramos
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, Braga, 4710-057, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Raquel Fernandes
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, Braga, 4710-057, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Marcela Oliveira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, Braga, 4710-057, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ana Mendes-Frias
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, Braga, 4710-057, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ricardo Silvestre
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, Braga, 4710-057, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Nuno S Osório
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, Braga, 4710-057, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Hélder N Bastos
- Department of Pneumology, Centro Hospitalar do São João, Porto, Portugal
- i3S - Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, Portugal
| | - Rita F Santos
- i3S - Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- School of Health Sciences - Polytechnic of Porto, Porto, Portugal
| | - Susana Guimarães
- Department of Pathology, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - António Morais
- Department of Pneumology, Centro Hospitalar do São João, Porto, Portugal
| | - Massimiliano Mazzone
- Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Louvain, Belgium
- Laboratory of Tumor Inflammation and Angiogenesis, Department of Oncology, KU Leuven, Louvain, Belgium
| | - Agostinho Carvalho
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, Braga, 4710-057, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Cristina Cunha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, Braga, 4710-057, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Sandra Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, Braga, 4710-057, Portugal.
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.
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Zhang J, He Z, Xiong C, Yao Y, Zhang C, Yao W, Yang S, Li X, Han Y. SHH induces macrophage oxidative phosphorylation and efferocytosis to promote scar formation. Cell Commun Signal 2024; 22:336. [PMID: 38898530 PMCID: PMC11186229 DOI: 10.1186/s12964-024-01692-w] [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: 10/16/2023] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
Excessive scar formation such as hypertrophic scars and keloids, resulting from trauma or surgical procedures, present a widespread concern for causing disfigurement, discomfort, and functional limitations. Macrophages play pivotal roles in maintaining tissue homeostasis, orchestrating tissue development, repair, and immune responses, and its transition of function and phenotype plays a critical role in regulating the balance between inflammation and tissue regeneration, which is central to cutaneous scar formation. Recent evidence suggests the involvement of Sonic Hedgehog (SHH) in the induction of anti-inflammatory M2-like macrophage phenotypes within tumor microenvironments. In our study, we observed increased SHH expression in human hypertrophic scars, prompting an investigation into its influence on macrophage polarization, efferocytosis, and cutaneous scar formation. Our findings reveal that SHH can enhance oxidative phosphorylation (OXPHOS) in macrophages, augment macrophage efferocytosis, and promote M2 polarization, finally contributing to the progression of cutaneous scar formation. Notably, targeting SHH signaling with vismodegib exhibited promising potential in mitigating scar formation by reversing the effects of enhanced OXPHOS and M2 polarization in macrophages. In conclusion, this study underscores the critical roles of macrophage metabolism, particularly OXPHOS, efferocytosis and SHH signaling in cutaneous scar formation. Understanding these mechanisms provides new avenues for potential interventions and scar prevention strategies.
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Affiliation(s)
- Julei Zhang
- Department of Plastic and Reconstructive Surgery, The First Medical Centre, Chinese PLA General Hospital, 28 Fuxing Street, Beijing, 100853, China.
- Department of Burn and Plastic Surgery, The 980st Hospital of the PLA Joint Logistics Support Force, 398 Zhongshan Road West, Shijiazhuang, Hebei, China.
| | - Zeliang He
- Department of Burn and Plastic Surgery, The 980st Hospital of the PLA Joint Logistics Support Force, 398 Zhongshan Road West, Shijiazhuang, Hebei, China
| | - Chenlu Xiong
- Department of Plastic and Reconstructive Surgery, The First Medical Centre, Chinese PLA General Hospital, 28 Fuxing Street, Beijing, 100853, China
- School of Medicine, Nankai University, Tianjin, China
- Department of Plastic Surgery, Shaoxing People's Hospital, Shaoxing, Zhejiang, China
| | - Yuanyuan Yao
- Department of Burn and Plastic Surgery, The 980st Hospital of the PLA Joint Logistics Support Force, 398 Zhongshan Road West, Shijiazhuang, Hebei, China
| | - Chengliang Zhang
- Department of Burn and Plastic Surgery, The 980st Hospital of the PLA Joint Logistics Support Force, 398 Zhongshan Road West, Shijiazhuang, Hebei, China
| | - Wende Yao
- Department of Plastic and Reconstructive Surgery, The First Medical Centre, Chinese PLA General Hospital, 28 Fuxing Street, Beijing, 100853, China
- School of Medicine, Nankai University, Tianjin, China
- Department of Plastic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Sihan Yang
- Department of Plastic and Reconstructive Surgery, The First Medical Centre, Chinese PLA General Hospital, 28 Fuxing Street, Beijing, 100853, China
- School of Medicine, Nankai University, Tianjin, China
- Department of Plastic Surgery, Peking University International Hospital, Beijing, China
| | - Xiaodong Li
- Department of Burn and Plastic Surgery, The 980st Hospital of the PLA Joint Logistics Support Force, 398 Zhongshan Road West, Shijiazhuang, Hebei, China.
| | - Yan Han
- Department of Plastic and Reconstructive Surgery, The First Medical Centre, Chinese PLA General Hospital, 28 Fuxing Street, Beijing, 100853, China.
- Department of Plastic Surgery, Peking University International Hospital, Beijing, China.
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Wang K, Yang Z, Zhang B, Gong S, Wu Y. Adipose-Derived Stem Cell Exosomes Facilitate Diabetic Wound Healing: Mechanisms and Potential Applications. Int J Nanomedicine 2024; 19:6015-6033. [PMID: 38911504 PMCID: PMC11192296 DOI: 10.2147/ijn.s466034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 06/08/2024] [Indexed: 06/25/2024] Open
Abstract
Wound healing in diabetic patients is frequently hampered. Adipose-derived stem cell exosomes (ADSC-eoxs), serving as a crucial mode of intercellular communication, exhibit promising therapeutic roles in facilitating wound healing. This review aims to comprehensively outline the molecular mechanisms through which ADSC-eoxs enhance diabetic wound healing. We emphasize the biologically active molecules released by these exosomes and their involvement in signaling pathways associated with inflammation modulation, cellular proliferation, vascular neogenesis, and other pertinent processes. Additionally, the clinical application prospects of the reported ADSC-eoxs are also deliberated. A thorough understanding of these molecular mechanisms and potential applications is anticipated to furnish a theoretical groundwork for combating diabetic wound healing.
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Affiliation(s)
- Kang Wang
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Zihui Yang
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Boyu Zhang
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Song Gong
- Division of Endocrinology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yiping Wu
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
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Chen S, Wang K, Fan Z, Zhou T, Li R, Zhang B, Chen J, Chi J, Wei K, Liu J, Liu Z, Ma J, Dong N, Liu J. Modulation of anti-cardiac fibrosis immune responses by changing M2 macrophages into M1 macrophages. Mol Med 2024; 30:88. [PMID: 38879491 PMCID: PMC11179216 DOI: 10.1186/s10020-024-00858-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 06/10/2024] [Indexed: 06/19/2024] Open
Abstract
BACKGROUND Macrophages play a crucial role in the development of cardiac fibrosis (CF). Although our previous studies have shown that glycogen metabolism plays an important role in macrophage inflammatory phenotype, the role and mechanism of modifying macrophage phenotype by regulating glycogen metabolism and thereby improving CF have not been reported. METHODS Here, we took glycogen synthetase kinase 3β (GSK3β) as the target and used its inhibitor NaW to enhance macrophage glycogen metabolism, transform M2 phenotype into anti-fibrotic M1 phenotype, inhibit fibroblast activation into myofibroblasts, and ultimately achieve the purpose of CF treatment. RESULTS NaW increases the pH of macrophage lysosome through transmembrane protein 175 (TMEM175) and caused the release of Ca2+ through the lysosomal Ca2+ channel mucolipin-2 (Mcoln2). At the same time, the released Ca2+ activates TFEB, which promotes glucose uptake by M2 and further enhances glycogen metabolism. NaW transforms the M2 phenotype into the anti-fibrotic M1 phenotype, inhibits fibroblasts from activating myofibroblasts, and ultimately achieves the purpose of treating CF. CONCLUSION Our data indicate the possibility of modifying macrophage phenotype by regulating macrophage glycogen metabolism, suggesting a potential macrophage-based immunotherapy against CF.
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Affiliation(s)
- Shiqi Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Kan Wang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zhengfeng Fan
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Tingwen Zhou
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Rui Li
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Bingxia Zhang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jie Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jiangyang Chi
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Keke Wei
- Department of Immunology, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, 430030, China
| | - Jincheng Liu
- Department of Biochemistry & Molecular Biology, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, 430030, China
| | - Zongtao Liu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jingwei Ma
- Department of Immunology, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, 430030, China.
| | - Nianguo Dong
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China.
| | - Junwei Liu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Ji W, Li B, Li N, Xing C. Design Strategy of Microneedle Systems for Skin Wound Healing: Based on the Structure of Tips and Therapeutic Methodologies. ACS APPLIED BIO MATERIALS 2024. [PMID: 38863157 DOI: 10.1021/acsabm.4c00532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
The skin, being the largest organ of the human body, is susceptible to damage resulting in wounds that are vulnerable to pathogenic attacks and fail to provide effective protection for internal tissues. Therefore, it is crucial to expedite wound healing. In recent years, microneedles have garnered significant attention as an innovative drug delivery system owing to their noninvasive and painless administration, simplified application process, precise control over drug release, and versatile loading capabilities. Consequently, they hold immense potential for the treatment of skin wound. This review presents a comprehensive design strategy for the microneedle system in promoting skin wound healing. First, the process of skin wound healing and the characteristics of specific wounds are elucidated. The design strategies for microneedles are subsequently presented and classified based on their structural and therapeutic methodologies. Finally, a succinct recapitulation of the previously discussed points and a prospective analysis are provided.
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Affiliation(s)
- Wenchao Ji
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Boying Li
- School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Ning Li
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215000, P. R. China
| | - Chengfen Xing
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China
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18
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Toledo B, Zhu Chen L, Paniagua-Sancho M, Marchal JA, Perán M, Giovannetti E. Deciphering the performance of macrophages in tumour microenvironment: a call for precision immunotherapy. J Hematol Oncol 2024; 17:44. [PMID: 38863020 PMCID: PMC11167803 DOI: 10.1186/s13045-024-01559-0] [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: 03/05/2024] [Accepted: 05/21/2024] [Indexed: 06/13/2024] Open
Abstract
Macrophages infiltrating tumour tissues or residing in the microenvironment of solid tumours are known as tumour-associated macrophages (TAMs). These specialized immune cells play crucial roles in tumour growth, angiogenesis, immune regulation, metastasis, and chemoresistance. TAMs encompass various subpopulations, primarily classified into M1 and M2 subtypes based on their differentiation and activities. M1 macrophages, characterized by a pro-inflammatory phenotype, exert anti-tumoural effects, while M2 macrophages, with an anti-inflammatory phenotype, function as protumoural regulators. These highly versatile cells respond to stimuli from tumour cells and other constituents within the tumour microenvironment (TME), such as growth factors, cytokines, chemokines, and enzymes. These stimuli induce their polarization towards one phenotype or another, leading to complex interactions with TME components and influencing both pro-tumour and anti-tumour processes.This review comprehensively and deeply covers the literature on macrophages, their origin and function as well as the intricate interplay between macrophages and the TME, influencing the dual nature of TAMs in promoting both pro- and anti-tumour processes. Moreover, the review delves into the primary pathways implicated in macrophage polarization, examining the diverse stimuli that regulate this process. These stimuli play a crucial role in shaping the phenotype and functions of macrophages. In addition, the advantages and limitations of current macrophage based clinical interventions are reviewed, including enhancing TAM phagocytosis, inducing TAM exhaustion, inhibiting TAM recruitment, and polarizing TAMs towards an M1-like phenotype. In conclusion, while the treatment strategies targeting macrophages in precision medicine show promise, overcoming several obstacles is still necessary to achieve an accessible and efficient immunotherapy.
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Affiliation(s)
- Belén Toledo
- Department of Health Sciences, University of Jaén, Campus Lagunillas, Jaén, E-23071, Spain
- Department of Medical Oncology, Cancer Center Amsterdam, Cancer Biology and Immunology, Amsterdam UMC, VU University, Amsterdam, The Netherlands
| | - Linrui Zhu Chen
- Department of Medical Oncology, Cancer Center Amsterdam, Cancer Biology and Immunology, Amsterdam UMC, VU University, Amsterdam, The Netherlands
| | - María Paniagua-Sancho
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, E-18100, Spain
- Instituto de Investigación Sanitaria ibs. GRANADA, Hospitales Universitarios de Granada-Universidad de Granada, Granada, E-18071, Spain
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, E-18016, Spain
- Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, E-18016, Spain
| | - Juan Antonio Marchal
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, E-18100, Spain
- Instituto de Investigación Sanitaria ibs. GRANADA, Hospitales Universitarios de Granada-Universidad de Granada, Granada, E-18071, Spain
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, E-18016, Spain
- Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, E-18016, Spain
| | - Macarena Perán
- Department of Health Sciences, University of Jaén, Campus Lagunillas, Jaén, E-23071, Spain.
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, E-18100, Spain.
- Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, E-18016, Spain.
| | - Elisa Giovannetti
- Department of Medical Oncology, Cancer Center Amsterdam, Cancer Biology and Immunology, Amsterdam UMC, VU University, Amsterdam, The Netherlands.
- Cancer Pharmacology Lab, Fondazione Pisana per la Scienza, San Giuliano, Pisa, 56017, Italy.
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19
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Liu X, Xiong J, Li X, Pan H, Osama H. Meta-analysis study of small extracellular vesicle nursing application therapies for healing of wounds and skin regeneration. Arch Dermatol Res 2024; 316:346. [PMID: 38849563 DOI: 10.1007/s00403-024-02992-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 04/14/2024] [Accepted: 04/26/2024] [Indexed: 06/09/2024]
Abstract
We designed and performed this meta-analysis to investigate the impact of the application of extracellular small vesicle therapies on regeneration of skin and wound healing. The findings of this study were computed using fixed or random effect models. The mean differences (MDs), and odds ratio (ORs) with their 95% confidence intervals (CIs) were calculated. In this study, 43 publications were included, encompassing 530 animals with artificial wounds. Small extracellular vesicle therapy had a significant greater rate of wound closure (MD, 24.0; 95% CI, 19.98-28.02, P < 0.001), lower scar width (MD, -191.33; 95%CI, -292.26--90.4, P < 0.001), and higher blood vessel density (MD,36.11; 95%CI, 19.02-53.20, P < 0.001) compared to placebo. Our data revealed that small extracellular vesicle therapy had a significantly higher regeneration of skin and healing of wounds based on the results of wound closure rate, lower scar width, and higher blood vessel density compared to placebo. Future studies with larger sample size are needed.
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Affiliation(s)
- Xianping Liu
- Department of NeuroSurgery, The Affiliated Chengdu 363Hospital of Southwest Medical University, No.550, Campus Road, Pi Du District, Chengdu, 611730, Sichuan, China
| | - Jianping Xiong
- Department of NeuroSurgery, The Affiliated Chengdu 363Hospital of Southwest Medical University, No.550, Campus Road, Pi Du District, Chengdu, 611730, Sichuan, China
| | - Xia Li
- Department of NeuroSurgery, The Affiliated Chengdu 363Hospital of Southwest Medical University, No.550, Campus Road, Pi Du District, Chengdu, 611730, Sichuan, China
| | - Haipeng Pan
- Department of NeuroSurgery, The Affiliated Chengdu 363Hospital of Southwest Medical University, No.550, Campus Road, Pi Du District, Chengdu, 611730, Sichuan, China
| | - Hasnaa Osama
- Department of Clinical Pharmacy, Beni-Suef University, Beni-Suef, Egypt.
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20
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Harrison JM, Leong EK, Osborne ND, Marshall JS, Bezuhly M. AT2R Activation Improves Wound Healing in a Preclinical Mouse Model. Biomedicines 2024; 12:1238. [PMID: 38927444 PMCID: PMC11200587 DOI: 10.3390/biomedicines12061238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/23/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024] Open
Abstract
Abnormal skin healing resulting in chronic wounds or hypertrophic scarring remains a major healthcare burden. Here, the antifibrotic angiotensin II type 2 receptor (AT2R) signaling pathway was modulated to determine its impact on cutaneous wound healing. Balb/c mice received two splinted full-thickness wounds. Topical treatments with the selective AT2R agonist compound 21 (C21) and/or selective antagonist PD123319 or saline vehicle were administered until sacrifice on post-wounding days 7 or 10. The rate of wound re-epithelialization was accelerated by PD123319 and combination treatments. In vitro, C21 significantly reduced human fibroblast migration. C21 increased both collagen and vascular densities at days 7 and 10 post-wounding and collagen I:III ratio at day 10, while PD123319 and combination treatments decreased them. Genes associated with regeneration and repair were upregulated by C21, while PD123319 treatment increased the expression of genes associated with inflammation and immune cell chemotaxis. C21 treatment reduced wound total leukocyte and neutrophil staining densities, while PD123319 increased these and macrophage densities. Overall, AT2R activation with C21 yields wounds that mature more quickly with structural, cellular, and gene expression profiles more closely approximating unwounded skin. These findings support AT2R signal modulation as a potential therapeutic target to improve skin quality during wound healing.
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Affiliation(s)
- Julia M. Harrison
- Department of Surgery, IWK Health Centre, 5850/5980 University Avenue, Halifax, NS B3K 6R8, Canada;
- Department of Surgery, Dalhousie University, 5850 College St, Halifax, NS B3H 4H7, Canada
| | - Edwin K. Leong
- Department of Pathology, Dalhousie University, 5850 College St, Halifax, NS B3H 4H7, Canada
| | - Natasha D. Osborne
- Department of Microbiology & Immunology, Dalhousie University, 5850 College St, Halifax, NS B3H 4H7, Canada;
| | - Jean S. Marshall
- Department of Pathology, Dalhousie University, 5850 College St, Halifax, NS B3H 4H7, Canada
- Department of Microbiology & Immunology, Dalhousie University, 5850 College St, Halifax, NS B3H 4H7, Canada;
| | - Michael Bezuhly
- Department of Surgery, IWK Health Centre, 5850/5980 University Avenue, Halifax, NS B3K 6R8, Canada;
- Department of Surgery, Dalhousie University, 5850 College St, Halifax, NS B3H 4H7, Canada
- Department of Microbiology & Immunology, Dalhousie University, 5850 College St, Halifax, NS B3H 4H7, Canada;
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21
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Yin D, Shen G. Exosomes from adipose-derived stem cells regulate macrophage polarization and accelerate diabetic wound healing via the circ-Rps5/miR-124-3p axis. Immun Inflamm Dis 2024; 12:e1274. [PMID: 38888351 PMCID: PMC11184652 DOI: 10.1002/iid3.1274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 03/26/2024] [Accepted: 05/05/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND Adipose-derived stem cells (ADSCs) hold promising application prospects in the treatment of diabetic wounds, although the underlying mechanisms of repair have not been fully elucidated. This research aimed to elucidate the mechanisms by which ADSCs promote wound healing. METHODS Exosomes from ADSCs were isolated and circRps5 level was identified. To investigate the role of circRps5 in the regulation, exosomes from differently treated ADSCs were used. Different exosomes were injected into the edge of the wound in diabetic mice, and the effects on wound healing status, pathology, collagen, cytokines, and macrophage phenotype were assessed. Raw264.7 cells were co-treated with high glucose and exosomes, and then cell phenotype and autophagy were examined in vitro, followed by the evaluation of miR-124-3p's impact on cell phenotype. RESULTS Exosomes from ADSCs were isolated and identified using nanoparticle tracking analysis and exosome markers. Overexpression of circRps5 accelerated wound healing, reduced inflammatory response, enhanced collagen production, and promoted the M2 transformation of macrophages. In high glucose-induced macrophages, its overexpression also inhibited excessive autophagy. When macrophages overexpressed miR-124-3p, the induction of the M2 phenotype was suppressed. Luciferase reporter assay proved the combination of circRps5 and miR-124-3p. CONCLUSION This study identifies that circRps5 carried by ADSC-Exos promotes macrophage M2 polarization through miR-124-3p. These findings provide valuable insights into the mechanism of ADSC-Exos for treating refractory diabetic wounds, laying a solid theoretical groundwork for future clinical development.
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Affiliation(s)
- Dongjing Yin
- Department of Burns and Plastic SurgeryThe First Affiliated Hospital of Soochow UniversitySuzhouJiangsuChina
- Department of Burns and Plastic SurgeryAffiliated Nantong Hospital 3 of Nantong UniversityNantongJiangsuChina
| | - Guoliang Shen
- Department of Burns and Plastic SurgeryThe First Affiliated Hospital of Soochow UniversitySuzhouJiangsuChina
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22
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Chen Y, Huang X, Liu A, Fan S, Liu S, Li Z, Yang X, Guo H, Wu M, Liu M, Liu P, Fu F, Liu S, Xuan K. Lactobacillus Reuteri Vesicles Regulate Mitochondrial Function of Macrophages to Promote Mucosal and Cutaneous Wound Healing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309725. [PMID: 38647360 PMCID: PMC11199966 DOI: 10.1002/advs.202309725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 04/07/2024] [Indexed: 04/25/2024]
Abstract
The interplay between bacteria and their host influences the homeostasis of the human immune microenvironment, and this reciprocal interaction also affects the process of tissue damage repair. A variety of immunomodulatory commensal bacteria reside in the body, capable of delivering membrane vesicles (MVs) to host cells to regulate the local immune microenvironment. This research revealed, for the initial time, the significant enhancement of mucosal and cutaneous wound healing by MVs secreted by the human commensal Lactobacillus reuteri (RMVs) through modulation of the inflammatory environment in wound tissue. Local administration of RMVs reduces the proportion of pro-inflammatory macrophages in inflamed tissues and mitigates the level of local inflammation, thereby facilitating the healing of oral mucosa and cutaneous wounds. The elevated oxidative stress levels in activated pro-inflammatory macrophages can be modulated by RMVs, resulting in phenotypic transformation of macrophages. Furthermore, 3-hydroxypropionaldehyde present in RMVs can decrease the mitochondrial permeability of macrophages and stabilize the mitochondrial membrane potential, thereby promoting the conversion of macrophages to an anti-inflammatory phenotype. This study pioneers the significance of commensal bacterial MVs in tissue injury repair and presents a novel concept for the repair of tissue damage.
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Affiliation(s)
- Yuan Chen
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Xiaoyao Huang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Anqi Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Siyuan Fan
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Shiyu Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesCenter for Tissue EngineeringSchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Zihan Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesCenter for Tissue EngineeringSchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Xiaoxue Yang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Hao Guo
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Meiling Wu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Meng Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Peisheng Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Fei Fu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Siying Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesCenter for Tissue EngineeringSchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Kun Xuan
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
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23
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Li Z, Xing X, Zhao C, Wu Q, Liu J, Qiu X, Wang L. A rapid interactive chitosan-based medium with antioxidant and pro-vascularization properties for infected burn wound healing. Carbohydr Polym 2024; 333:121991. [PMID: 38494240 DOI: 10.1016/j.carbpol.2024.121991] [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: 11/20/2023] [Revised: 02/22/2024] [Accepted: 02/26/2024] [Indexed: 03/19/2024]
Abstract
Large-pore hydrogels are better suited to meet the management needs of nutrient transportation and gas exchange between infected burn wounds and normal tissues. However, better construction strategies are required to balance the pore size and mechanical strength of hydrogels to construct a faster substance/gas interaction medium between tissues. Herein, we developed spongy large pore size hydrogel (CS-TA@Lys) with good mechanical properties using a simple ice crystal-assisted method based on chitosan (CS), incorporating tannic acid (TA) and ε-polylysine (Lys). A large-pore and mechanically robust hydrogel medium was constructed based on hydrogen bonding between CS molecules. On this basis, a pro-restorative functional platform with antioxidation and pro-vascularization was constructed using TA and Lys. In vitro experiments displayed that the CS-TA@Lys hydrogel possessed favorable mechanical properties and fast interaction performances. In addition, the CS-TA@Lys hydrogel possessed the capacity to remove intra/extracellular reactive oxygen species (ROS) and possessed antimicrobial and pro-angiogenic properties. In vivo experiments displayed that the CS-TA@Lys hydrogel inhibited wound inflammation and promoted wound vascularization. In addition, the CS-TA@Lys hydrogel showed the potential for rapid hemostasis. This study provides a potential functional wound dressing with rapid interaction properties for skin wound repair.
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Affiliation(s)
- Zhentao Li
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangdong, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Southern Medical University, Guangdong, Guangzhou 510515, China
| | - Xianglong Xing
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangdong, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Southern Medical University, Guangdong, Guangzhou 510515, China
| | - Chaoran Zhao
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangdong, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Southern Medical University, Guangdong, Guangzhou 510515, China
| | - Qi Wu
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangdong, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Southern Medical University, Guangdong, Guangzhou 510515, China
| | - Junjie Liu
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangdong, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Southern Medical University, Guangdong, Guangzhou 510515, China
| | - Xiaozhong Qiu
- School of Basic Medical Science, Southern Medical University, Guangdong, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Southern Medical University, Guangdong, Guangzhou 510515, China.
| | - Leyu Wang
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangdong, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Southern Medical University, Guangdong, Guangzhou 510515, China.
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24
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Tsissios G, Sallese A, Perez-Estrada JR, Tangeman JA, Chen W, Smucker B, Ratvasky SC, Grajales-Esquivel E, Martinez A, Visser KJ, Joven Araus A, Wang H, Simon A, Yun MH, Del Rio-Tsonis K. Macrophages modulate fibrosis during newt lens regeneration. Stem Cell Res Ther 2024; 15:141. [PMID: 38745238 PMCID: PMC11094960 DOI: 10.1186/s13287-024-03740-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 04/23/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Previous studies have suggested that macrophages are present during lens regeneration in newts, but their role in the process is yet to be elucidated. METHODS Here we generated a transgenic reporter line using the newt, Pleurodeles waltl, that traces macrophages during lens regeneration. Furthermore, we assessed early changes in gene expression during lens regeneration using two newt species, Notophthalmus viridescens and Pleurodeles waltl. Finally, we used clodronate liposomes to deplete macrophages during lens regeneration in both species and tested the effect of a subsequent secondary injury after macrophage recovery. RESULTS Macrophage depletion abrogated lens regeneration, induced the formation of scar-like tissue, led to inflammation, decreased iris pigment epithelial cell (iPEC) proliferation, and increased rates of apoptosis in the eye. Some of these phenotypes persisted throughout the last observation period of 100 days and could be attenuated by exogenous FGF2 administration. A distinct transcript profile encoding acute inflammatory effectors was established for the dorsal iris. Reinjury of the newt eye alleviated the effects of macrophage depletion, including the resolution of scar-like tissue, and re-initiated the regeneration process. CONCLUSIONS Together, our findings highlight the importance of macrophages for facilitating a pro-regenerative environment in the newt eye by regulating fibrotic responses, modulating the overall inflammatory landscape, and maintaining the proper balance of early proliferation and late apoptosis of the iPECs.
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Affiliation(s)
- Georgios Tsissios
- Department of Biology, Miami University, Oxford, OH, USA
- Center for Visual Sciences at, Miami University, Oxford, OH, USA
- Cellular Molecular and Structural Biology Program, Miami University, Oxford, OH, USA
| | - Anthony Sallese
- Department of Biology, Miami University, Oxford, OH, USA
- Center for Visual Sciences at, Miami University, Oxford, OH, USA
| | - J Raul Perez-Estrada
- Department of Biology, Miami University, Oxford, OH, USA
- Center for Visual Sciences at, Miami University, Oxford, OH, USA
| | - Jared A Tangeman
- Department of Biology, Miami University, Oxford, OH, USA
- Center for Visual Sciences at, Miami University, Oxford, OH, USA
- Cellular Molecular and Structural Biology Program, Miami University, Oxford, OH, USA
| | - Weihao Chen
- Center for Visual Sciences at, Miami University, Oxford, OH, USA
- Cellular Molecular and Structural Biology Program, Miami University, Oxford, OH, USA
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, USA
| | - Byran Smucker
- Center for Visual Sciences at, Miami University, Oxford, OH, USA
- Department of Statistics, Miami University, Oxford, OH, USA
| | - Sophia C Ratvasky
- Department of Biology, Miami University, Oxford, OH, USA
- Center for Visual Sciences at, Miami University, Oxford, OH, USA
- Cellular Molecular and Structural Biology Program, Miami University, Oxford, OH, USA
| | - Erika Grajales-Esquivel
- Department of Biology, Miami University, Oxford, OH, USA
- Center for Visual Sciences at, Miami University, Oxford, OH, USA
| | - Arielle Martinez
- Department of Biology, Miami University, Oxford, OH, USA
- Center for Visual Sciences at, Miami University, Oxford, OH, USA
| | - Kimberly J Visser
- CRTD/ Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany
| | - Alberto Joven Araus
- Department of Cell and Molecular Biology, Karolinska Institute, Stockholm, Sweden
| | - Hui Wang
- Center for Visual Sciences at, Miami University, Oxford, OH, USA
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, USA
| | - András Simon
- Department of Cell and Molecular Biology, Karolinska Institute, Stockholm, Sweden
| | - Maximina H Yun
- CRTD/ Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
- Cluster of Excellence Physics of Life, Technische Universität Dresden, Dresden, Germany
| | - Katia Del Rio-Tsonis
- Department of Biology, Miami University, Oxford, OH, USA.
- Center for Visual Sciences at, Miami University, Oxford, OH, USA.
- Cellular Molecular and Structural Biology Program, Miami University, Oxford, OH, USA.
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25
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Wang C, Jiang D. Exogenous PRAS40 reduces KLF4 expression and alleviates hypertrophic scar fibrosis and collagen deposition through inhibiting mTORC1. Burns 2024; 50:936-946. [PMID: 38369439 DOI: 10.1016/j.burns.2024.01.026] [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: 07/31/2023] [Revised: 01/12/2024] [Accepted: 01/30/2024] [Indexed: 02/20/2024]
Abstract
BACKGROUND To identify the anti-fibrosis effect of PRAS40 in scar, and its potential mechanism. METHODS We constructed a rat model of hypertrophic scarthat was locally injected the PRAS40 overexpression adenoviruses, mTORC1 inhibitor MHY1485 and activator rapamycin, and further observed the pathological changes of skin tissue and the severity of fibrosis by HE, Masson and sirius red staining, and analyzed the deposition of a-SMA and collagen I by western blot and immunofluorescence test. Meanwhile, the co-localization of KLF4 with a-SMA and type I collagen was analyzed, as well as the regulatory effect of PRAS40 on KLF4. In addition, we also verified whether the inhibition of scar fibrosis by PRAS40 is related to mTORC1, and whether the upregulation of KLF4 is related to mTORC1. RESULTS The results showed that the expression of PRAS40 was low and p-PRAS40 was high in scar skin tissue. After local injection of PRAS40 overexpression adenovirus, the expression of PRAS40 in skin tissue was increased. The overexpression of PRAS40 can inhibit scar skin fibrosis and reduce the content of a-SMA and collagen I. Further mechanism analysis confirms that the inhibitory effect of PRAS40 on skin fibrosis is related to mTORC1, and PRAS40 inhibits the activation of mTORC1. The expression of KLF4 is relatively low in scar tissue. PRAS40 administration upregulated the expression of KLF4, which is related to mTORC1 CONCLUSIONS: PRAS40 significantly improves fibrosis of scar skin tissue and increases the expression of KLF4 in scars. The anti-fibrotic effect of PRAS40 depends on mTORC1.
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Affiliation(s)
- Chao Wang
- Department of Burn and Plastic Surgery, The Second Hospital of Shandong University, Jinan, Shandong, 250033, China
| | - Duyin Jiang
- Department of Burn and Plastic Surgery, The Second Hospital of Shandong University, Jinan, Shandong, 250033, China.
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26
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Karahisar Turan S, Kılıç Süloğlu A, İde S, Türkeş T, Barlas N. In vitro and in vivo investigation of Argiope bruennichi spider silk-based novel biomaterial for medical use. Biopolymers 2024; 115:e23572. [PMID: 38491802 DOI: 10.1002/bip.23572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/18/2024]
Abstract
As a natural and biocompatible material with high strength and flexibility, spider silk is frequently used in biomedical studies. In this study, the availability of Argiope bruennichi spider silk as a surgical suture material was investigated. The effects of spider silk-based and commercial sutures, with and without Aloe vera coating, on wound healing were evaluated by a rat dorsal skin flap model, postoperatively (7th and 14th days). Biochemical, hematological, histological, immunohistochemical, small angle x-ray scattering (SAXS) analyses and mechanical tests were performed. A. bruennichi silk did not show any cytotoxic effect on the L929 cell line according to MTT and LDH assays, in vitro. The silk materials did not cause any allergic reaction, infection, or systemic effect in rats according to hematological and biochemical analyses. A. bruennichi spider silk group showed a similar healing response to commercial sutures. SAXS analysis showed that the 14th-day applications of A. bruennichi spider silk and A. vera coated commercial suture groups have comparable structural results with control group. In conclusion, A. bruennichi spider silk is biocompatible in line with the parameters examined and shows a healing response similar to the commercial sutures commonly used in the skin.
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Affiliation(s)
| | - Aysun Kılıç Süloğlu
- Department of Biology, Faculty of Science, Hacettepe University, Ankara, Turkey
| | - Semra İde
- Department of Physics Engineering, Faculty of Engineering, Hacettepe University, Ankara, Turkey
| | - Tuncay Türkeş
- Department of Biology, Faculty of Arts and Sciences, Niğde Ömer Halisdemir University, Niğde, Turkey
| | - Nurhayat Barlas
- Department of Biology, Faculty of Science, Hacettepe University, Ankara, Turkey
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Huang C, Teng J, Liu W, Wang J, Liu A. Modulation of macrophages by a phillyrin-loaded thermosensitive hydrogel promotes skin wound healing in mice. Cytokine 2024; 177:156556. [PMID: 38417214 DOI: 10.1016/j.cyto.2024.156556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 02/01/2024] [Accepted: 02/20/2024] [Indexed: 03/01/2024]
Abstract
BACKGROUND Impaired wound healing in traumatic skin injuries remains a severe clinical challenge due to impaired re-vascularization, harmful bacteria infection, and inflammation dysregulation. Macrophages are recognized as prominent immune cells in tissue regeneration and wound healing. Consequently, the modulation of macrophages provides a promising therapeutic target for wound healing disorders. Here, we aimed to explore whether a novel constructed combination of thermosensitive hydrogel Pluronic F-127 (PF-127) and phillyrin (PH, the main active compound of forsythia suspensa) could improve skin wound healing. METHODS Firstly, the biological effects of pH on the phenotype and inflammation of macrophages were assessed by flow cytometry and ELISA. The biocompatibility of the PF-127 plus PH combination was investigated on keratinocytes and red blood cells. The biological effect of PF-127/PH hydrogel on the migratory ability of keratinocytes in vitro was evaluated using the scratch and transwell migration assays. In addition,S. aureusandE. coliwere employed to test the antibacterial properties of the PF-127 plus PH combination. Finally, PF-127 plus PH scaffold was appliedto the full-thickness skin defect in mice. Histomorphological evaluation and immunochemistry were performed to explore the wound-healing activity of PF-127/PH hydrogel. RESULTS PH can promote the polarization of macrophages from the M1 (pro-inflammatory) phenotype to the M2 (anti-inflammatory) phenotype. The PF-127/PH hydrogel was highly biocompatible and showed a potent stimulative effect on the migration of keratinocytesin vitro. The combination of PF-127 and PH exerted a pronounced antibacterial activity onS. aureusandE. coli in vitro.PF-127/PH hydrogel potently accelerates the healing of full-thickness skin defects by promoting skin cell proliferation, accelerating angiogenesis, and inhibiting inflammation. CONCLUSIONS Our study suggests that PF-127/PH hydrogel has excellent potential for treating traumatic skin defects.
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Affiliation(s)
- Chenggang Huang
- Department of Proctology, The Central Hospital of Yueyang, Yueyang 414020, PR China
| | - Jiajia Teng
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, PR China
| | - Wei Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, PR China
| | - Junzhe Wang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, PR China
| | - An Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, PR China.
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Richards JH, Freeman DD, Detloff MR. Myeloid Cell Association with Spinal Cord Injury-Induced Neuropathic Pain and Depressive-like Behaviors in LysM-eGFP Mice. THE JOURNAL OF PAIN 2024; 25:104433. [PMID: 38007034 PMCID: PMC11058038 DOI: 10.1016/j.jpain.2023.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 11/10/2023] [Accepted: 11/20/2023] [Indexed: 11/27/2023]
Abstract
Spinal cord injury (SCI) affects ∼500,000 people worldwide annually, with the majority developing chronic neuropathic pain. Following SCI, approximately 60% of these individuals are diagnosed with comorbid mood disorders, while only ∼21% of the general population will experience a mood disorder in their lifetime. We hypothesize that nociceptive and depressive-like dysregulation occurs after SCI and is associated with aberrant macrophage infiltration in segmental pain centers. We completed moderate unilateral C5 spinal cord contusion on LysM-eGFP reporter mice to visualize infiltrating macrophages. At 6-weeks post-SCI, mice exhibit nociceptive and depressive-like dysfunction compared to naïve and sham groups. There were no differences between the sexes, indicating that sex is not a contributing factor driving nociceptive or depressive-like behaviors after SCI. Utilizing hierarchical cluster analysis, we classified mice based on endpoint nociceptive and depressive-like behavior scores. Approximately 59.3% of the SCI mice clustered based on increased paw withdrawal threshold to mechanical stimuli and immobility time in the forced swim test. SCI mice displayed increased myeloid cell presence in the lesion epicenter, ipsilateral C7-8 dorsal horn, and C7-8 DRGs as evidenced by eGFP, CD68, and Iba1 immunostaining when compared to naïve and sham mice. This was further confirmed by SCI-induced alterations in the expression of genes indicative of myeloid cell activation states and their associated secretome in the dorsal horn and dorsal root ganglia. In conclusion, moderate unilateral cervical SCI caused the development of pain-related and depressive-like behaviors in a subset of mice and these behavioral changes are consistent with immune system activation in the segmental pain pathway. PERSPECTIVE: These experiments characterized pain-related and depressive-like behaviors and correlated these changes with the immune response post-SCI. While humanizing the rodent is impossible, the results from this study inform clinical literature to closely examine sex differences reported in humans to better understand the underlying shared etiologies of pain and depressive-like behaviors following central nervous system trauma.
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Affiliation(s)
- Jonathan H. Richards
- Department of Neurobiology & Anatomy, Marion Murray Spinal Cord Research Center, College of Medicine, Drexel University, 2900 W. Queen Lane, Philadelphia, PA 19129
| | - Daniel D. Freeman
- Department of Neurobiology & Anatomy, Marion Murray Spinal Cord Research Center, College of Medicine, Drexel University, 2900 W. Queen Lane, Philadelphia, PA 19129
| | - Megan Ryan Detloff
- Department of Neurobiology & Anatomy, Marion Murray Spinal Cord Research Center, College of Medicine, Drexel University, 2900 W. Queen Lane, Philadelphia, PA 19129
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29
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Diao W, Li P, Jiang X, Zhou J, Yang S. Progress in copper-based materials for wound healing. Wound Repair Regen 2024; 32:314-322. [PMID: 37822053 DOI: 10.1111/wrr.13122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/19/2023] [Accepted: 09/05/2023] [Indexed: 10/13/2023]
Abstract
Chronic wounds have become the leading cause of death, particularly among diabetic patients. Chronic wounds affect ~6.5 million patients each year, according to statistics, and wound care and management incur significant financial costs. The rising prevalence of chronic wounds, combined with the limitations of current treatments, necessitates the development of new and innovative approaches to accelerate wound healing. Copper has been extensively studied for its antibacterial and anti-inflammatory activities. Copper in its nanoparticle form could have better biological properties and many applications in health care.
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Affiliation(s)
- Wuliang Diao
- Department of Plastic Surgery, Xiangya Third Hospital, Central South University, Changsha, Hunan, China
| | - Peiting Li
- Department of Plastic Surgery, Xiangya Third Hospital, Central South University, Changsha, Hunan, China
| | - Xilin Jiang
- Department of General Surgery, Zhongfang Hospital, Hunan University of Medicine, Huaihua, Hunan, China
| | - Jianda Zhou
- Department of Plastic Surgery, Xiangya Third Hospital, Central South University, Changsha, Hunan, China
| | - Songbo Yang
- Department of General Surgery, People's Hospital of Tianzhu County, Guizhou, China
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Zou YP, Shan XF, Qiu JX, Wang LN, Xiang RL, Cai ZG. Botulinum toxin type A inhibits M1 macrophage polarization by deactivation of JAK2/STAT1 and IκB/NFκB pathway and contributes to scar alleviation in aseptic skin wound healing. Biomed Pharmacother 2024; 174:116468. [PMID: 38518603 DOI: 10.1016/j.biopha.2024.116468] [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: 11/15/2023] [Revised: 03/09/2024] [Accepted: 03/18/2024] [Indexed: 03/24/2024] Open
Abstract
The non-neuronal and non-muscular effects of botulinum toxin type A (BTXA) on scar reduction has been discovered. This study was designed to investigate the effects of BTXA on macrophages polarization during the early stage of skin repair. A skin defect model was established on the dorsal skin of SD rats. BTXA was intracutaneous injected into the edge of wound immediately as the model was established. Histological examinations were performed on scar samples. Raw 264.7 was selected as the cell model of recruited circulating macrophages, and was induced for M1 polarization by LPS. Identify the signaling pathways that primarily regulated M1 polarization and respond to BTXA treatment. Application of BTXA at early stage of injury significantly reduced the scar diameter without delaying wound closure. BTXA treatment improved fiber proliferation and arrangement, and inhibited angiogenesis in scar granular tissue. The number of M1 macrophages and the levels of pro-inflammation were decreased after treated with BTXA in scar tissues. LPS activated JAK2/STAT1 and IκB/NFκB pathways were downregulated by BTXA, as well as LPS induced M1 polarization. At early stage of skin wound healing, injection of BTXA effectively reduced the number of M1 macrophages and the levels of pro-inflammatory mediators which contributes to scar alleviation. BTXA resisted the M1 polarization of macrophages induced by LPS via deactivating the JAK2/STAT1 and IκB/NFκB pathways.
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Affiliation(s)
- Yan-Ping Zou
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & NHC Key Laboratory of Digital Stomatology & NMPA Key Laboratory for Dental Materials, Beijing, China
| | - Xiao-Feng Shan
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & NHC Key Laboratory of Digital Stomatology & NMPA Key Laboratory for Dental Materials, Beijing, China
| | - Jia-Xuan Qiu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Lin-Na Wang
- Lanzhou Biotechnique Development Co., Ltd, Lanzhou, Gansu, China
| | - Ruo-Lan Xiang
- Department of Physiology and Pathophysiology, Peking University School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.
| | - Zhi-Gang Cai
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & NHC Key Laboratory of Digital Stomatology & NMPA Key Laboratory for Dental Materials, Beijing, China.
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Xiang JY, Kang L, Li ZM, Tseng SL, Wang LQ, Li TH, Li ZJ, Huang JZ, Yu NZ, Long X. Biological scaffold as potential platforms for stem cells: Current development and applications in wound healing. World J Stem Cells 2024; 16:334-352. [PMID: 38690516 PMCID: PMC11056631 DOI: 10.4252/wjsc.v16.i4.334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/20/2024] [Accepted: 03/12/2024] [Indexed: 04/25/2024] Open
Abstract
Wound repair is a complex challenge for both clinical practitioners and researchers. Conventional approaches for wound repair have several limitations. Stem cell-based therapy has emerged as a novel strategy to address this issue, exhibiting significant potential for enhancing wound healing rates, improving wound quality, and promoting skin regeneration. However, the use of stem cells in skin regeneration presents several challenges. Recently, stem cells and biomaterials have been identified as crucial components of the wound-healing process. Combination therapy involving the development of biocompatible scaffolds, accompanying cells, multiple biological factors, and structures resembling the natural extracellular matrix (ECM) has gained considerable attention. Biological scaffolds encompass a range of biomaterials that serve as platforms for seeding stem cells, providing them with an environment conducive to growth, similar to that of the ECM. These scaffolds facilitate the delivery and application of stem cells for tissue regeneration and wound healing. This article provides a comprehensive review of the current developments and applications of biological scaffolds for stem cells in wound healing, emphasizing their capacity to facilitate stem cell adhesion, proliferation, differentiation, and paracrine functions. Additionally, we identify the pivotal characteristics of the scaffolds that contribute to enhanced cellular activity.
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Affiliation(s)
- Jie-Yu Xiang
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Lin Kang
- Biomedical Engineering Facility, Institute of Clinical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100021, China
| | - Zi-Ming Li
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Song-Lu Tseng
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Li-Quan Wang
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Tian-Hao Li
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Zhu-Jun Li
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Jiu-Zuo Huang
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Nan-Ze Yu
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Xiao Long
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China.
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Shi H, Zhang Z, Yuan X, Liu G, Fan W, Wang W. PROS1 is a crucial gene in the macrophage efferocytosis of diabetic foot ulcers: a concerted analytical approach through the prisms of computer analysis. Aging (Albany NY) 2024; 16:6883-6897. [PMID: 38613800 PMCID: PMC11087110 DOI: 10.18632/aging.205732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 03/18/2024] [Indexed: 04/15/2024]
Abstract
BACKGROUND Diabetic foot ulcers (DFUs) pose a serious long-term threat because of elevated mortality and disability risks. Research on its biomarkers is still, however, very limited. In this paper, we have effectively identified biomarkers linked with macrophage excretion in diabetic foot ulcers through the application of bioinformatics and machine learning methodologies. These findings were subsequently validated using external datasets and animal experiments. Such discoveries are anticipated to offer novel insights and approaches for the early diagnosis and treatment of DFU. METHODS In this work, we used the Gene Expression Omnibus (GEO) database's datasets GSE68183 and GSE80178 as the training dataset to build a gene model using machine learning methods. After that, we used the training and validation sets to validate the model (GSE134431). On the model genes, we performed enrichment analysis using both gene set variant analysis (GSVA) and gene set enrichment analysis (GSEA). Additionally, the model genes were subjected to immunological association and immune function analyses. RESULTS In this study, PROS1 was identified as a potential key target associated with macrophage efflux in DFU by machine learning and bioinformatics approaches. Subsequently, the key biomarker status of PROS1 in DFU was also confirmed by external datasets. In addition, PROS1 also plays a key role in macrophage exudation in DFU. This gene may be associated with macrophage M1, CD4 memory T cells, naïve B cells, and macrophage M2, and affects IL-17, Rap1, hedgehog, and JAK-STAT signaling pathways. CONCLUSIONS PROS1 was identified and validated as a biomarker for DFU. This finding has the potential to provide a target for macrophage clearance of DFU.
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Affiliation(s)
- Hongshuo Shi
- Department of Peripheral Vascular Surgery, Institute of Surgery of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhicheng Zhang
- Dongying People’s Hospital (Dongying Hospital of Shandong Provincial Hospital Group), Dongying, Shandong, China
| | - Xin Yuan
- Department of Peripheral Vascular Surgery, Institute of Surgery of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Guobin Liu
- Department of Peripheral Vascular Surgery, Institute of Surgery of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Weijing Fan
- Department of Peripheral Vascular Surgery, Institute of Surgery of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wenbo Wang
- The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
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Mandloi V, Banerjee T, Sharma A, Pratap A, Ansari MA, Srivastava V. Role of Bovine Colostrum Dressing on Chronic Non-Healing Wounds in Comparison to Conventional Dressing: A Case-Control Study. INT J LOW EXTR WOUND 2024:15347346241241578. [PMID: 38592472 DOI: 10.1177/15347346241241578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Colostrum has been shown to be suitable for oral and/or topical applications. Colostrum decreases the amount of discharge from wounds and also accelerates healing, leading to a decrease in the number of dressings. In this study, 40 patients with chronic non-healing wounds were divided into two groups, considering the inclusion and exclusion criteria. Group I included 15 patients with conventional dressings, and Group II included 25 patients with added topical colostrum dressings. All patients were assessed at the time of presentation and after 21 days. The results of the present study indicate that colostrum powder dressings may be used as an adjunct in the management of chronic non-healing wounds.
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Affiliation(s)
- Vikas Mandloi
- Department of General Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Tuhina Banerjee
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Aditya Sharma
- Department of General Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Arvind Pratap
- Department of General Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Mumtaz Ahmad Ansari
- Department of General Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Vivek Srivastava
- Department of General Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Abdi A, Oroojzadeh P, Valivand N, Sambrani R, Lotfi H. Immunological aspects of probiotics for improving skin diseases: Influence on the Gut-Brain-Skin Axis. Biochem Biophys Res Commun 2024; 702:149632. [PMID: 38340656 DOI: 10.1016/j.bbrc.2024.149632] [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: 11/07/2023] [Revised: 01/27/2024] [Accepted: 02/04/2024] [Indexed: 02/12/2024]
Abstract
The interplay between gut microbiota and human health, both mental and physical, is well-documented. This connection extends to the gut-brain-skin axis, linking gut microbiota to skin health. Recent studies have underscored the potential of probiotics and prebiotics to modulate gut microbiota, supported by in vivo and clinical investigations. In this comprehensive review, we explore the immunological implications of probiotics in influencing the gut-skin axis for the treatment and prevention of skin conditions, including psoriasis, acne, diabetic ulcers, atopic dermatitis, and skin cancer. Our analysis reveals that probiotics exert their effects by modulating cytokine production, whether administered orally or topically. Probiotics bolster skin defenses through the production of antimicrobial peptides and the induction of keratinocyte differentiation and regeneration. Yet, many questions surrounding probiotics remain unanswered, necessitating further exploration of their mechanisms of action in the context of skin diseases.
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Affiliation(s)
- Ali Abdi
- Medical Immunology, Aziz Sancar Institute of Experimental Medicine, İstanbul University, Istanbul, Turkey
| | - Parvin Oroojzadeh
- Student Research Committee, Department of Food Science and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nassim Valivand
- Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Roshanak Sambrani
- Clinical Research Development Unit of Razi Educational and Treatment Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hajie Lotfi
- Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Disease, Qazvin University of Medical Sciences, Qazvin, Iran.
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Sankar S, Kodiveri Muthukaliannan G. Deciphering the crosstalk between inflammation and biofilm in chronic wound healing: Phytocompounds loaded bionanomaterials as therapeutics. Saudi J Biol Sci 2024; 31:103963. [PMID: 38425782 PMCID: PMC10904202 DOI: 10.1016/j.sjbs.2024.103963] [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: 10/03/2023] [Revised: 02/15/2024] [Accepted: 02/17/2024] [Indexed: 03/02/2024] Open
Abstract
In terms of the economics and public health, chronic wounds exert a significant detrimental impact on the health care system. Bacterial infections, which cause the formation of highly resistant biofilms that elude standard antibiotics, are the main cause of chronic, non-healing wounds. Numerous studies have shown that phytochemicals are effective in treating a variety of diseases, and traditional medicinal plants often include important chemical groups such alkaloids, phenolics, tannins, terpenes, steroids, flavonoids, glycosides, and fatty acids. These substances are essential for scavenging free radicals which helps in reducing inflammation, fending off infections, and hastening the healing of wounds. Bacterial species can survive in chronic wound conditions because biofilms employ quorum sensing as a communication technique which regulates the expression of virulence components. Fortunately, several phytochemicals have anti-QS characteristics that efficiently block QS pathways, prevent drug-resistant strains, and reduce biofilm development in chronic wounds. This review emphasizes the potential of phytocompounds as crucial agents for alleviating bacterial infections and promoting wound healing by reducing the inflammation in chronic wounds, exhibiting potential avenues for future therapeutic approaches to mitigate the healthcare burden provided by these challenging conditions.
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Affiliation(s)
- Srivarshini Sankar
- Department of Biotechnology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore 632 014, Tamil Nadu, India
| | - Gothandam Kodiveri Muthukaliannan
- Department of Biotechnology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore 632 014, Tamil Nadu, India
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Lai H, Yip HC, Gong Y, Chan KF, Leung KKC, Chan MS, Xia X, Chiu PWY. MFGE8 in exosomes derived from mesenchymal stem cells prevents esophageal stricture after endoscopic submucosal dissection in pigs. J Nanobiotechnology 2024; 22:143. [PMID: 38561800 PMCID: PMC10986023 DOI: 10.1186/s12951-024-02429-0] [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: 12/24/2023] [Accepted: 03/20/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Endoscopic submucosal dissection (ESD) is the current standard treatment for early-stage esophageal neoplasms. However, the postoperative esophageal stricture after extensive mucosal dissection remains a severe challenge with limited effective treatments available. In this study, we introduced a chitosan/gelatin (ChGel) sponge encapsulating the adipose mesenchymal stem cells (ADMSCs)-derived exosomes (ChGelMSC-Exo) for the prevention of esophageal stenosis after ESD in a porcine model. RESULTS Pigs were randomly assigned into (1) ChGelMSC-Exo treatment group, (2) ChGelPBS group, and (3) the controls. Exosome treatments were applied immediately on the day after ESD as well as on day 7. Exosome components crucial for wound healing were investigated by liquid chromatography-tandem mass spectrometry (LC-MS/MS) and small RNA sequencing. ChGelMSC-Exo treatment significantly reduced mucosal contraction on day 21, with less fiber accumulation and inflammatory infiltration, and enhanced angiogenesis when compared with the control and ChGelPBS groups. The anti-fibrotic effects following MSC-Exo treatment were further found to be associated with the anti-inflammatory M2 polarization of the resident macrophages, especially within the M2b subset characterized by the reduced TGFβ1 secretion, which sufficiently inhibited inflammation and prevented the activation of myofibroblast with less collagen production at the early stage after ESD. Moreover, the abundant expression of exosomal MFGE8 was identified to be involved in the transition of the M2b-macrophage subset through the activation of MFGE8/STAT3/Arg1 axis. CONCLUSIONS Our study demonstrates that exosomal MFGE8 significantly promotes the polarization of the M2b-macrophage subset, consequently reducing collagen deposition. These findings suggest a promising potential for MSC-Exo therapy in preventing the development of esophageal stricture after near-circumferential ESD.
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Affiliation(s)
- Huasheng Lai
- Department of Gastroenterology and Hepatology, Guangzhou Key Laboratory of Digestive Diseases, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, People's Republic of China
- Department of Surgery and State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, 999077, People's Republic of China
| | - Hon-Chi Yip
- Department of Surgery and State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, 999077, People's Republic of China
| | - Yu Gong
- Department of Endoscopy, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Kai-Fung Chan
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, 999077, People's Republic of China
- Chow Yuk Ho Technology Center for Innovative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, 999077, People's Republic of China
| | - Kevin Kai-Chung Leung
- Department of Surgery and State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, 999077, People's Republic of China
| | - Melissa Shannon Chan
- Department of Surgery and State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, 999077, People's Republic of China
| | - Xianfeng Xia
- Department of Surgery and State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, 999077, People's Republic of China.
- Department of Endoscopy, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China.
- Chow Yuk Ho Technology Center for Innovative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, 999077, People's Republic of China.
| | - Philip Wai-Yan Chiu
- Department of Surgery and State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, 999077, People's Republic of China.
- Chow Yuk Ho Technology Center for Innovative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, 999077, People's Republic of China.
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Guo Q, Li W, Xie R, Wang Y, Xie Y, Cheng K, Sun Z. Visualization of the relationship between macrophage and wound healing from the perspective of bibliometric analysis. Int Wound J 2024; 21:e14597. [PMID: 38124467 PMCID: PMC10961877 DOI: 10.1111/iwj.14597] [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: 11/22/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023] Open
Abstract
Macrophages play a crucial role in aiding all phases of the wound-healing process and has garnered increasing attention recently. Although a substantial body of related studies has been published, there remains a lack of comprehensive bibliometric analysis. In this study, we collected 4296 papers from the Web of Science Core Collection database. Three tools including CiteSpace, VOSviewer and one online analytical platform were employed to conduct bibliometric analysis and data visualization. Our results revealed that the annual number of publications related to macrophage and wound healing has increased exponentially with the year. The United States and China stand as the primary driving forces within this field, collectively constituting 58.2% of the total publication output. The application of biomaterials was one of the most concerned research areas in this field. According to references analysis, the current research focus has shifted to diabetic wound healing and regulating macrophage polarization. Based on the keywords analysis, we identified the following research frontiers in the future: exosomes and other extracellular vesicles; bio-derived materials and drug delivery methods such as nanoparticles, scaffolds and hydrogels; immunomodulation and macrophage polarization in the M2-state; chronic wounds, particularly those associated with diabetes; antimicrobial peptides; and antioxidant. Additionally, TNF, IL-6, IL-10, TGF-β1 and VEGF ranked as the five genes that have garnered the most research attention in the intersection of macrophage and wound healing. All in all, our findings offered researchers a holistic view of the ongoing progress in the field of macrophages and wound healing, serving as a valuable reference for scholars and policymakers in this domain.
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Affiliation(s)
- Qiang Guo
- Department of Clinical College of Neurology, Neurosurgery and NeurorehabilitationTianjin Medical UniversityTianjinChina
- Department of Orthopaedic SurgeryTianjin Baodi HospitalTianjinChina
| | - Wanqing Li
- Department of Operating RoomXiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and ScienceXiangyangChina
| | - Ruijie Xie
- Department of MicrosurgeryThe Affiliated Nanhua Hospital, Hengyang Medical school, University of South ChinaHengyangChina
- Division of Clinical Epidemiology and Aging ResearchGerman Cancer Research Center (DKFZ)HeidelbergGermany
| | - Yulin Wang
- Department of Clinical College of Neurology, Neurosurgery and NeurorehabilitationTianjin Medical UniversityTianjinChina
| | - Yuchen Xie
- Department of Clinical MedicineXiangya Medical College, Central South UniversityChangshaHunanChina
| | - Kunming Cheng
- Department of Intensive Care UnitThe Second Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Zhiming Sun
- Department of Clinical College of Neurology, Neurosurgery and NeurorehabilitationTianjin Medical UniversityTianjinChina
- Department of The Third Central Clinical CollegeTianjin Medical UniversityTianjinChina
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Richards SM, Gubser Keller C, Kreutzer R, Greiner G, Ley S, Doelemeyer A, Dubost V, Flandre T, Kirkland S, Carbone W, Pandya R, Knehr J, Roma G, Schuierer S, Bouchez L, Seuwen K, Aebi A, Westhead D, Hintzen G, Jurisic G, Hossain I, Neri M, Manevski N, Balavenkatraman KK, Moulin P, Begrich A, Bertschi B, Huber R, Bouwmeester T, Driver VR, von Schwabedissen M, Schaefer D, Wettstein B, Wettstein R, Ruffner H. Molecular characterization of chronic cutaneous wounds reveals subregion- and wound type-specific differential gene expression. Int Wound J 2024; 21:e14447. [PMID: 38149752 PMCID: PMC10958103 DOI: 10.1111/iwj.14447] [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: 07/29/2023] [Revised: 10/06/2023] [Accepted: 10/10/2023] [Indexed: 12/28/2023] Open
Abstract
A limited understanding of the pathology underlying chronic wounds has hindered the development of effective diagnostic markers and pharmaceutical interventions. This study aimed to elucidate the molecular composition of various common chronic ulcer types to facilitate drug discovery strategies. We conducted a comprehensive analysis of leg ulcers (LUs), encompassing venous and arterial ulcers, foot ulcers (FUs), pressure ulcers (PUs), and compared them with surgical wound healing complications (WHCs). To explore the pathophysiological mechanisms and identify similarities or differences within wounds, we dissected wounds into distinct subregions, including the wound bed, border, and peri-wound areas, and compared them against intact skin. By correlating histopathology, RNA sequencing (RNA-Seq), and immunohistochemistry (IHC), we identified unique genes, pathways, and cell type abundance patterns in each wound type and subregion. These correlations aim to aid clinicians in selecting targeted treatment options and informing the design of future preclinical and clinical studies in wound healing. Notably, specific genes, such as PITX1 and UPP1, exhibited exclusive upregulation in LUs and FUs, potentially offering significant benefits to specialists in limb preservation and clinical treatment decisions. In contrast, comparisons between different wound subregions, regardless of wound type, revealed distinct expression profiles. The pleiotropic chemokine-like ligand GPR15L (C10orf99) and transmembrane serine proteases TMPRSS11A/D were significantly upregulated in wound border subregions. Interestingly, WHCs exhibited a nearly identical transcriptome to PUs, indicating clinical relevance. Histological examination revealed blood vessel occlusions with impaired angiogenesis in chronic wounds, alongside elevated expression of genes and immunoreactive markers related to blood vessel and lymphatic epithelial cells in wound bed subregions. Additionally, inflammatory and epithelial markers indicated heightened inflammatory responses in wound bed and border subregions and reduced wound bed epithelialization. In summary, chronic wounds from diverse anatomical sites share common aspects of wound pathophysiology but also exhibit distinct molecular differences. These unique molecular characteristics present promising opportunities for drug discovery and treatment, particularly for patients suffering from chronic wounds. The identified diagnostic markers hold the potential to enhance preclinical and clinical trials in the field of wound healing.
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Affiliation(s)
| | | | - Robert Kreutzer
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- Department of PathologyAnaPath Services GmbHLiestalSwitzerland
| | | | - Svenja Ley
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Arno Doelemeyer
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Valerie Dubost
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Thierry Flandre
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Susan Kirkland
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- Harvantis Pharma Consulting LtdLondonUK
| | - Walter Carbone
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- Research and Development CoordinatorELI TechGroup Corso SvizzeraTorinoItaly
| | - Rishika Pandya
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Judith Knehr
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Guglielmo Roma
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- Discovery Data ScienceGSK VaccinesSienaItaly
| | - Sven Schuierer
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Laure Bouchez
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- Therapeutics Department, Executive in ResidenceGeneral InceptionBaselSwitzerland
| | - Klaus Seuwen
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Alexandra Aebi
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - David Westhead
- Leeds Institute of Data AnalyticsUniversity of LeedsLeedsUK
| | - Gabriele Hintzen
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- Translational ScienceAffimed GmbHMannheimGermany
| | - Giorgia Jurisic
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Imtiaz Hossain
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Marilisa Neri
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Nenad Manevski
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- Translational PKPD and Clinical Pharmacology, Pharmaceutical Sciences, pREDF. Hoffmann‐La Roche AGBaselSwitzerland
| | | | - Pierre Moulin
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Annette Begrich
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | | | - Roland Huber
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | | | - Vickie R. Driver
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- INOVA HealthcareWound Healing and Hyperbaric CentersFalls ChurchVirginiaUSA
| | | | - Dirk Schaefer
- Plastic, Reconstructive, Aesthetic and Hand SurgeryUniversity Hospital BaselBaselSwitzerland
| | - Barbara Wettstein
- Plastic, Reconstructive, Aesthetic and Hand SurgeryUniversity Hospital BaselBaselSwitzerland
| | - Reto Wettstein
- Plastic, Reconstructive, Aesthetic and Hand SurgeryUniversity Hospital BaselBaselSwitzerland
| | - Heinz Ruffner
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
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Jones AE, Rios A, Ibrahimovic N, Chavez C, Bayley NA, Ball AB, Hsieh WY, Sammarco A, Bianchi AR, Cortez AA, Graeber TG, Hoffmann A, Bensinger SJ, Divakaruni AS. The metabolic cofactor Coenzyme A enhances alternative macrophage activation via MyD88-linked signaling. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.28.587096. [PMID: 38585887 PMCID: PMC10996702 DOI: 10.1101/2024.03.28.587096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Metabolites and metabolic co-factors can shape the innate immune response, though the pathways by which these molecules adjust inflammation remain incompletely understood. Here we show that the metabolic cofactor Coenzyme A (CoA) enhances IL-4 driven alternative macrophage activation [m(IL-4)] in vitro and in vivo. Unexpectedly, we found that perturbations in intracellular CoA metabolism did not influence m(IL-4) differentiation. Rather, we discovered that exogenous CoA provides a weak TLR4 signal which primes macrophages for increased receptivity to IL-4 signals and resolution of inflammation via MyD88. Mechanistic studies revealed MyD88-linked signals prime for IL-4 responsiveness, in part, by reshaping chromatin accessibility to enhance transcription of IL-4-linked genes. The results identify CoA as a host metabolic co-factor that influences macrophage function through an extrinsic TLR4-dependent mechanism, and suggests that damage-associated molecular patterns (DAMPs) can prime macrophages for alternative activation and resolution of inflammation.
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Affiliation(s)
- Anthony E Jones
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Amy Rios
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Neira Ibrahimovic
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Carolina Chavez
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Nicholas A Bayley
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Andréa B Ball
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Wei Yuan Hsieh
- Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Alessandro Sammarco
- Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Amber R Bianchi
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Angel A Cortez
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Thomas G Graeber
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Alexander Hoffmann
- Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Steven J Bensinger
- Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ajit S Divakaruni
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Lead contact
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40
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Gao FF, Chen DQ, Jiang YT, Han CF, Lin BY, Yang Z, Quan JH, Xiong YH, Chen XT. Functional roles of circular RNAs in lung injury. Front Pharmacol 2024; 15:1354806. [PMID: 38601461 PMCID: PMC11004487 DOI: 10.3389/fphar.2024.1354806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/16/2024] [Indexed: 04/12/2024] Open
Abstract
Lung injury leads to respiratory dysfunction, low quality of life, and even life-threatening conditions. Circular RNAs (circRNAs) are endogenous RNAs produced by selective RNA splicing. Studies have reported their involvement in the progression of lung injury. Understanding the roles of circRNAs in lung injury may aid in elucidating the underlying mechanisms and provide new therapeutic targets. Thus, in this review, we aimed to summarize and discuss the characteristics and biological functions of circRNAs, and their roles in lung injury from existing research, to provide a theoretical basis for the use of circRNAs as a diagnostic and therapeutic target for lung injury.
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Affiliation(s)
- Fei-Fei Gao
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Dian-Qing Chen
- Department of Hand and Foot Surgery, Armed Police Corps Hospital of Hebei, Shijiazhuang, Hebei, China
| | - Yue-Tong Jiang
- Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Cui-Fei Han
- Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Bi-Yun Lin
- Biotissue Repository, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Zhan Yang
- Biotissue Repository, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Juan-Hua Quan
- Laboratory of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Ying-Huan Xiong
- Biotissue Repository, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Xin-Tian Chen
- Laboratory of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
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41
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Wu S, Sun S, Fu W, Yang Z, Yao H, Zhang Z. The Role and Prospects of Mesenchymal Stem Cells in Skin Repair and Regeneration. Biomedicines 2024; 12:743. [PMID: 38672102 PMCID: PMC11048165 DOI: 10.3390/biomedicines12040743] [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: 12/31/2023] [Revised: 03/01/2024] [Accepted: 03/11/2024] [Indexed: 04/28/2024] Open
Abstract
Mesenchymal stem cells (MSCs) have been recognized as a cell therapy with the potential to promote skin healing. MSCs, with their multipotent differentiation ability, can generate various cells related to wound healing, such as dermal fibroblasts (DFs), endothelial cells, and keratinocytes. In addition, MSCs promote neovascularization, cellular regeneration, and tissue healing through mechanisms including paracrine and autocrine signaling. Due to these characteristics, MSCs have been extensively studied in the context of burn healing and chronic wound repair. Furthermore, during the investigation of MSCs, their unique roles in skin aging and scarless healing have also been discovered. In this review, we summarize the mechanisms by which MSCs promote wound healing and discuss the recent findings from preclinical and clinical studies. We also explore strategies to enhance the therapeutic effects of MSCs. Moreover, we discuss the emerging trend of combining MSCs with tissue engineering techniques, leveraging the advantages of MSCs and tissue engineering materials, such as biodegradable scaffolds and hydrogels, to enhance the skin repair capacity of MSCs. Additionally, we highlight the potential of using paracrine and autocrine characteristics of MSCs to explore cell-free therapies as a future direction in stem cell-based treatments, further demonstrating the clinical and regenerative aesthetic applications of MSCs in skin repair and regeneration.
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Affiliation(s)
- Si Wu
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
- National Clinical Research Center for Digestive Diseases, Beijing 100050, China
| | - Shengbo Sun
- School of Basic Medical Sciences, Capital Medical University, Beijing 100050, China
| | - Wentao Fu
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
- National Clinical Research Center for Digestive Diseases, Beijing 100050, China
| | - Zhengyang Yang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
- National Clinical Research Center for Digestive Diseases, Beijing 100050, China
| | - Hongwei Yao
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
- National Clinical Research Center for Digestive Diseases, Beijing 100050, China
| | - Zhongtao Zhang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
- National Clinical Research Center for Digestive Diseases, Beijing 100050, China
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42
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Feng Y, Li J, Mo X, Ju Q. Macrophages in acne vulgaris: mediating phagocytosis, inflammation, scar formation, and therapeutic implications. Front Immunol 2024; 15:1355455. [PMID: 38550588 PMCID: PMC10972966 DOI: 10.3389/fimmu.2024.1355455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 02/28/2024] [Indexed: 04/02/2024] Open
Abstract
Macrophages serve as a pivotal nexus in the pathogenesis of acne vulgaris, orchestrating both the elimination of Cutibacterium acnes (C. acnes) and lipid metabolic regulation while also possessing the capacity to exacerbate inflammation and induce cutaneous scarring. Additionally, recent investigations underscore the therapeutic potential inherent in macrophage modulation and challenge current anti-inflammatory strategies for acne vulgaris. This review distills contemporary advances, specifically examining the dual roles of macrophages, underlying regulatory frameworks, and emergent therapeutic avenues. Such nuanced insights hold the promise of guiding future explorations into the molecular etiology of acne and the development of more efficacious treatment modalities.
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Affiliation(s)
| | | | - Xiaohui Mo
- Department of Dermatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qiang Ju
- Department of Dermatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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43
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Zhou X, Shen H, Wu S, Mu L, Yang H, Wu J. An amphibian-derived cathelicidin accelerates cutaneous wound healing through its main regulatory effect on phagocytes. Int Immunopharmacol 2024; 129:111595. [PMID: 38295541 DOI: 10.1016/j.intimp.2024.111595] [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: 11/13/2023] [Revised: 01/16/2024] [Accepted: 01/23/2024] [Indexed: 02/02/2024]
Abstract
Cathelicidins are an important family of antimicrobial peptides (AMPs) involved in the innate immunity in vertebrates. The mammalian cathelicidins have been well characterized, but the relationship between structure and function in amphibian cathelicidins is still not well understood. In this study, a novel 29-residue cathelicidin antimicrobial peptide (BugaCATH) was identified from the skin of Bufo gargarizans. Unlike other AMPs, BugaCATH does not display any direct antimicrobial effects in vitro. However, it effectively promotes full-thickness wound repair in mice. Following injury, BugaCATH initiates and expedites the inflammatory stage by recruiting neutrophils and macrophages to the wound site. BugaCATH not only regulates neutrophil phagocytic activity but also stimulates the generation of cytokines (TNF-α, IL-6, and IL-1β) and chemokines (CXCL1, CXCL2, CCL2, and CCL3) in macrophages and in mice. Furthermore, it promotes macrophage M2 polarization that facilitates the conversion from a pro-inflammatory macrophage-dominated wound environment to an anti-inflammatory one during the mid to late stages, which is crucial for reducing inflammation and effective wound repair. The MAPK (ERK, JNK, and p38) and NF-κB-NLRP3 signaling pathways are involved in the activity. Moreover, BugaCATH directly enhances the migration of keratinocytes and vascular endothelial cells without affecting their proliferation. Notably, BugaCATH significantly improves the proliferation of keratinocytes and endothelial cells in the presence of macrophages. The current study revealed that in addition to proliferation of keratinocytes and endothelial cells, BugaCATH possesses the ability to modulate inflammatory processes during skin injury through its regulatory effect on phagocytes. The combination of these capabilities makes BugaCATH a potent candidate for skin wound therapy.
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Affiliation(s)
- Xiaoyan Zhou
- School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan, China
| | - Huan Shen
- School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan, China
| | - Shuxin Wu
- School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan, China
| | - Lixian Mu
- School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan, China.
| | - Hailong Yang
- School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan, China.
| | - Jing Wu
- School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan, China.
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44
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Langley D, Zimmermann K, Krenske E, Stefanutti G, Kimble RM, Holland AJA, Fear MW, Wood FM, Kenna T, Cuttle L. Unremitting pro-inflammatory T-cell phenotypes, and macrophage activity, following paediatric burn injury. Clin Transl Immunology 2024; 13:e1496. [PMID: 38463658 PMCID: PMC10921233 DOI: 10.1002/cti2.1496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 03/12/2024] Open
Abstract
Objectives The aim of this study was to characterise the dynamic immune profile of paediatric burn patients for up to 18 months post-burn. Methods Flow cytometry was used to measure 25 cell markers, chemokines and cytokines which reflected both pro-inflammatory and anti-inflammatory immune profiles. Peripheral blood mononuclear cells from 6 paediatric burn patients who had returned for repeated burn and scar treatments for > 4 timepoints within 12 months post-burn were compared to four age-matched healthy controls. Results While overall proportions of T cells, NK cells and macrophages remained relatively constant, over time percentages of these immune cells differentiated into effector and proinflammatory cell phenotypes including Th17 and activated γδ T cells. Circulating proportions of γδ T cells increased their expression of pro-inflammatory mediators throughout the burn recovery, with a 3-6 fold increase of IL-17 at 1-3 weeks, and NFκβ 9-18 months post-burn. T-regulatory cell plasticity was also observed, and Treg phenotype proportions changed from systemically reduced skin-homing T-regs (CCR4+) and increased inflammatory (CCR6+) at 1-month post-burn, to double-positive cell types (CCR4+CCR6+) elevated in circulation for 18 months post-burn. Furthermore, Tregs were observed to proportionally express less IL-10 but increased TNF-α over 18 months. Conclusion Overall, these results indicate the circulating percentages of immune cells do not increase or decrease over time post-burn, instead they become highly specialised, inflammatory and skin-homing. In this patient population, these changes persisted for at least 18 months post-burn, this 'immune distraction' may limit the ability of immune cells to prioritise other threats post-burn, such as respiratory infections.
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Affiliation(s)
- Donna Langley
- School of Biomedical Sciences, Faculty of HealthQueensland University of Technology (QUT)South BrisbaneQLDAustralia
- Centre for Immunology and Infection Control (CIIC)QIMR Berghofer Medical Research Institute, Queensland University of Technology (QUT)BrisbaneQLDAustralia
- Centre for Biomedical Technology (CBT)Queensland University of Technology (QUT)Kelvin GroveQLDAustralia
| | - Kate Zimmermann
- School of Biomedical Sciences, Faculty of HealthQueensland University of Technology (QUT)South BrisbaneQLDAustralia
- Centre for Immunology and Infection Control (CIIC)QIMR Berghofer Medical Research Institute, Queensland University of Technology (QUT)BrisbaneQLDAustralia
| | - Emma Krenske
- School of Biomedical Sciences, Faculty of HealthQueensland University of Technology (QUT)South BrisbaneQLDAustralia
- Centre for Immunology and Infection Control (CIIC)QIMR Berghofer Medical Research Institute, Queensland University of Technology (QUT)BrisbaneQLDAustralia
| | - Giorgio Stefanutti
- Department of Paediatric Surgery, Urology, Burns and TraumaChildren's Health Queensland, Queensland Children's HospitalSouth BrisbaneQLDAustralia
| | - Roy M Kimble
- Department of Paediatric Surgery, Urology, Burns and TraumaChildren's Health Queensland, Queensland Children's HospitalSouth BrisbaneQLDAustralia
| | - Andrew JA Holland
- The Children's Hospital at Westmead Burns Unit, Department of Paediatrics and Child Health, Kids Research InstituteSydney Medical School, The University of SydneySydneyNSWAustralia
| | - Mark W Fear
- Burn Injury Research Unit, School of Biomedical SciencesThe University of Western AustraliaPerthWAAustralia
| | - Fiona M Wood
- Burn Injury Research Unit, School of Biomedical SciencesThe University of Western AustraliaPerthWAAustralia
- Burns Service of Western AustraliaPerth Children's Hospital and Fiona Stanley HospitalPerthWAAustralia
| | - Tony Kenna
- School of Biomedical Sciences, Faculty of HealthQueensland University of Technology (QUT)South BrisbaneQLDAustralia
- Centre for Immunology and Infection Control (CIIC)QIMR Berghofer Medical Research Institute, Queensland University of Technology (QUT)BrisbaneQLDAustralia
| | - Leila Cuttle
- School of Biomedical Sciences, Faculty of HealthQueensland University of Technology (QUT)South BrisbaneQLDAustralia
- Centre for Biomedical Technology (CBT)Queensland University of Technology (QUT)Kelvin GroveQLDAustralia
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He Y, Cen Y, Tian M. Immunomodulatory hydrogels for skin wound healing: cellular targets and design strategy. J Mater Chem B 2024; 12:2435-2458. [PMID: 38284157 DOI: 10.1039/d3tb02626d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Skin wounds significantly impact the global health care system and represent a significant burden on the economy and society due to their complicated dynamic healing processes, wherein a series of immune events are required to coordinate normal and sequential healing phases, involving multiple immunoregulatory cells such as neutrophils, macrophages, keratinocytes, and fibroblasts, since dysfunction of these cells may impede skin wound healing presenting persisting inflammation, impaired vascularization, and excessive collagen deposition. Therefore, cellular target-based immunomodulation is promising to promote wound healing as cells are the smallest unit of life in immune response. Recently, immunomodulatory hydrogels have become an attractive avenue to promote skin wound healing. However, a detailed and comprehensive review of cellular targets and related hydrogel design strategies remains lacking. In this review, the roles of the main immunoregulatory cells participating in skin wound healing are first discussed, and then we highlight the cellular targets and state-of-the-art design strategies for immunomodulatory hydrogels based on immunoregulatory cells that cover defect, infected, diabetic, burn and tumor wounds and related scar healing. Finally, we discuss the barriers that need to be addressed and future prospects to boost the development and prosperity of immunomodulatory hydrogels.
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Affiliation(s)
- Yinhai He
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ying Cen
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Meng Tian
- Department of Neurosurgery and Neurosurgery Research Laboratory, West China Hospital, Sichuan University, Chengdu, 610041, China.
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46
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Yu B, Cao Y, Li S, Bai R, Zhou G, Fu Q, Liang L, Gu W, Zhang L, Chen M. Identification and validation of CRLF1 and NRG1 as immune-related signatures in hypertrophic scar. Genomics 2024; 116:110797. [PMID: 38262564 DOI: 10.1016/j.ygeno.2024.110797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 12/27/2023] [Accepted: 01/20/2024] [Indexed: 01/25/2024]
Abstract
BACKGROUND Hypertrophic scar (HTS) is a prevalent chronic inflammatory skin disorder characterized by abnormal proliferation and extracellular matrix deposition and the precise mechanisms underlying HTS remain elusive. This study aimed to identify and validate potential immune-related genes associated with hypertrophic scar formation. METHODS Skin samples from normal (n = 12) and hypertrophic scar tissues (n = 12) were subjected to RNA-seq analysis. Differentially expressed genes (DEGs) and significant modular genes in Weighted gene Co-expression Network Analysis (WGCNA) were identified. Subsequently, functional enrichment analysis was performed on the intersecting genes. Additionally, eight immune-related genes were matched from the ImmPort database. Validation of NRG1 and CRLF1 was carried out using an external cohort (GSE136906). Furthermore, the association between these two genes and immune cells was assessed by Spearman correlation analysis. Finally, RNA was extracted from normal and hypertrophic scar samples, and RT-qPCR, Immunohistochemistry staining and Western Blot were employed to validate the expression of characteristic genes. RESULTS A total of 940 DEGs were identified between HTS and normal samples, and 288 key module genes were uncovered via WGCNA. Enrichment analysis in key module revealed involvement in many immune-related pathways, such as Th17 cell differentiation, antigen processing and presentation and B cell receptor signaling pathway. The eight immune-related genes (IFI30, NR2F2, NRG1, ESM1, NFATC2, CRLF1, COLEC12 and IL6) were identified by matching from the ImmPort database. Notably, we observed that activated mast cell positively correlated with CRLF1 expression, while CD8 T cells exhibited a positive correlation with NRG1. The expression of NRG1 and CRLF1 was further validated in clinical samples. CONCLUSION In this study, two key immune-related genes (CRLF1 and NRG1) were identified as characteristic genes associated with HTS. These findings provide valuable insights into the immune-related mechanisms underlying hypertrophic scar formation.
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Affiliation(s)
- Boya Yu
- Department of Plastic and Reconstructive Surgery, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100048, China; Chinese PLA Medical School, Beijing 100853, China
| | - Yalei Cao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Shiyi Li
- Department of Plastic and Reconstructive Surgery, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100048, China; Chinese PLA Medical School, Beijing 100853, China
| | - Ruiqi Bai
- Department of Plastic and Reconstructive Surgery, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100048, China; Chinese PLA Medical School, Beijing 100853, China
| | - Guiwen Zhou
- Department of Plastic and Reconstructive Surgery, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100048, China
| | - Qiang Fu
- Department of Plastic and Reconstructive Surgery, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100048, China
| | - Liming Liang
- Department of Plastic and Reconstructive Surgery, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100048, China
| | - Weijie Gu
- Department of Dermatology, Air Force Medical Center, Air Force Medical University, Beijing 100142, China.
| | - Lixia Zhang
- Department of Plastic and Reconstructive Surgery, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100048, China; Chinese PLA Medical School, Beijing 100853, China.
| | - Minliang Chen
- Department of Plastic and Reconstructive Surgery, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100048, China.
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Norte-Muñoz M, García-Bernal D, García-Ayuso D, Vidal-Sanz M, Agudo-Barriuso M. Interplay between mesenchymal stromal cells and the immune system after transplantation: implications for advanced cell therapy in the retina. Neural Regen Res 2024; 19:542-547. [PMID: 37721282 PMCID: PMC10581591 DOI: 10.4103/1673-5374.380876] [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: 02/28/2023] [Revised: 03/25/2023] [Accepted: 05/11/2023] [Indexed: 09/19/2023] Open
Abstract
Advanced mesenchymal stromal cell-based therapies for neurodegenerative diseases are widely investigated in preclinical models. Mesenchymal stromal cells are well positioned as therapeutics because they address the underlying mechanisms of neurodegeneration, namely trophic factor deprivation and neuroinflammation. Most studies have focused on the beneficial effects of mesenchymal stromal cell transplantation on neuronal survival or functional improvement. However, little attention has been paid to the interaction between mesenchymal stromal cells and the host immune system due to the immunomodulatory properties of mesenchymal stromal cells and the long-held belief of the immunoprivileged status of the central nervous system. Here, we review the crosstalk between mesenchymal stromal cells and the immune system in general and in the context of the central nervous system, focusing on recent work in the retina and the importance of the type of transplantation.
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Affiliation(s)
- María Norte-Muñoz
- Grupo de Investigación Oftalmología Experimental, Departamento de Oftalmología, Optometría, Otorrinolaringología y Anatomía Patológica, Facultad de Medicina, Universidad de Murcia, Instituto Murciano de Investigación Biosanitaria (IMIB), Campus de Ciencias de la Salud, 30120 Murcia, Spain
| | - David García-Bernal
- Grupo de Investigación Trasplante Hematopoyético y Terapia celular, Departamento de Bioquímica e Inmunología. Facultad de Medicina, Universidad de Murcia, Instituto Murciano de Investigación Biosanitaria (IMIB), Campus de Ciencias de la Salud, 30120 Murcia, Spain
| | - Diego García-Ayuso
- Grupo de Investigación Oftalmología Experimental, Departamento de Oftalmología, Optometría, Otorrinolaringología y Anatomía Patológica, Facultad de Medicina, Universidad de Murcia, Instituto Murciano de Investigación Biosanitaria (IMIB), Campus de Ciencias de la Salud, 30120 Murcia, Spain
| | - Manuel Vidal-Sanz
- Grupo de Investigación Oftalmología Experimental, Departamento de Oftalmología, Optometría, Otorrinolaringología y Anatomía Patológica, Facultad de Medicina, Universidad de Murcia, Instituto Murciano de Investigación Biosanitaria (IMIB), Campus de Ciencias de la Salud, 30120 Murcia, Spain
| | - Marta Agudo-Barriuso
- Grupo de Investigación Oftalmología Experimental, Departamento de Oftalmología, Optometría, Otorrinolaringología y Anatomía Patológica, Facultad de Medicina, Universidad de Murcia, Instituto Murciano de Investigación Biosanitaria (IMIB), Campus de Ciencias de la Salud, 30120 Murcia, Spain
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Wiinberg M, Andresen TL, Haedersdal M, Olesen UH. Ablative fractional CO 2 laser treatment promotes wound healing phenotype in skin macrophages. Lasers Surg Med 2024; 56:270-278. [PMID: 38409449 DOI: 10.1002/lsm.23772] [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: 12/14/2023] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 02/28/2024]
Abstract
OBJECTIVES Ablative fractional laser (AFL) treatment is a well-established method for reducing signs of skin photoaging. However, the biological mechanisms underlying AFL-induced healing responses and skin rejuvenation remain largely unknown. It is known that macrophages play an important role in orchestrating healing, normalization, and remodeling processes in skin. Macrophage phenotypes are characterized by inflammatory markers, including arginase-1 (Arg1), major histocompatibility class II molecules (MHC II), and CD206. This study aims to explore AFL's effect on macrophage phenotype by evaluating changes in inflammatory markers and the potential concurrent accumulation of Arg1 in the skin. METHODS Mice (n = 9) received a single AFL treatment on the left side of the back skin (100 mJ/microbeam, 5% density) while the right side of the back remained untreated as control. Treated and untreated skin from each mouse were collected Day 5 posttreatment for flow cytometry and histology analysis. Flow cytometry evaluated the immune infiltration of macrophages and the expression of macrophage inflammatory markers (Arg1, MHC II, and CD206). In addition, Arg1 presence in the skin was evaluated through antibody staining of histology samples and quantification was performed using QuPath image analysis software. RESULTS Following AFL, the number of macrophages increased 11-fold (p = 0.0053). Phenotype analysis of AFL-treated skin revealed an increase in the percentage of macrophages positive for Arg1 (p < 0.0001) and a decrease in the percentage of macrophages positive for MHC II (p < 0.0001) compared to untreated skin. No significant differences were observed in percentage of CD206-positive macrophages (p = 0.8952). Visualization of AFL-treated skin demonstrated a distinct pattern of Arg1 accumulation that correlated with the microscopic treatment zones (MTZ). Quantification of the percentage of Arg1-positive area in epidermis and dermis showed a significant increase from 3.5% ± 1.2% to 5.2% ± 1.7 (p = 0.0232) and an increase from 2.2% ± 1.2% to 9.6% ± 3.3 (p < 0.0001) in whole skin samples. CONCLUSION AFL treatment polarizes macrophages toward a wound healing phenotype and induces Arg1 accumulation in the MTZ. We propose that the polarized wound healing macrophages are a major source for the increased Arg1 levels observed in the skin following treatment.
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Affiliation(s)
- Martin Wiinberg
- Department of Health Technology, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Thomas L Andresen
- Department of Health Technology, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Merete Haedersdal
- Department of Dermatology, Copenhagen University Hospital-Bispebjerg, Copenhagen, Denmark
| | - Uffe H Olesen
- Department of Dermatology, Copenhagen University Hospital-Bispebjerg, Copenhagen, Denmark
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Zhen Z, Wei S, Yunfei W, Jie X, Jienan X, Yiting S, Wen X, Shuyu G, Yue L, Xuanyu W, Yumei Z, Huafa Q. Astragalus polysaccharide improves diabetic ulcers by promoting M2-polarization of macrophages to reduce excessive inflammation via the β-catenin/ NF-κB axis at the late phase of wound-healing. Heliyon 2024; 10:e24644. [PMID: 38390059 PMCID: PMC10881534 DOI: 10.1016/j.heliyon.2024.e24644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 02/24/2024] Open
Abstract
Ethnopharmacological relevance Astragalus polysaccharide (APS), the most biologically active ingredient of Astragali Radix, is used to treat diabetes mellitus (DM)-related chronic wounds in traditional Chinese medicine for several decades. This herb possesses an anti-inflammatory effect. Our study proved that APS can reduce excessive inflammation at the late phase of wound-healing in diabetic ulcers. Aim of the study To clarify the molecular mechanism of APS in promoting wound-healing via reducing excessive inflammation in diabetic ulcers during the late stages of wound-healing. Methods and materials The rat model of the diabetic ulcers was established via intraperitoneal injection of streptozocin (60 mg/kg). We detected the regulation of APS on diabetic ulcers by measuring wound-healing rates. Bioinformatics was used to predict the target genes of APS, and autodocking was used to predict the combination of APS and target genes. Immunohistochemistry, Enzyme-linked immunosorbent assay, Western blot, immunofluorescence staining, flow cytometry, and flow cytometric sorting were investigated. Results The results demonstrated that APS promoted wound-healing and inhibited excessive inflammation at the late phase of wound-healing in diabetic rats. Mechanistic findings showed that APS promoted the expression of β-catenin and Rspo3 while inhibiting the expression of NF-KB and GSK-3β, which leads to the transformation of M1-type macrophages into M2-type macrophages and thus reducing excessive inflammation at the late phase of wound-healing in diabetic ulcers. Conclusion We found an interesting finding that APS promoted the polarization of macrophages towards M2-type through the β-catenin/NF-κB axis to reduce excessive inflammation at the late phase of wound-healing. Therefore, APS may be a promising drug for treating diabetic ulcers in clinic.
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Affiliation(s)
- Zhang Zhen
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Shan Wei
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Wang Yunfei
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Xing Jie
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Xu Jienan
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Shen Yiting
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Xiao Wen
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Guo Shuyu
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Liang Yue
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Wang Xuanyu
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Zhong Yumei
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Que Huafa
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
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Chen Y, Zhang X, Wang Q, Du C, Dong CM. Wound microenvironment regulatory poly(L-glutamic acid) composite hydrogels containing metal ion-coordinated nanoparticles for effective hemostasis and wound healing. Biomater Sci 2024; 12:1211-1227. [PMID: 38240342 DOI: 10.1039/d3bm01978k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Regulating the wound microenvironment to promote proliferation, vascularization, and wound healing is challenging for hemostats and wound dressings. Herein, polypeptide composite hydrogels have been simply fabricated by mixing a smaller amount of metal ion-coordinated nanoparticles into dopamine-modified poly(L-glutamic acid) (PGA), which had a microporous size of 10-16 μm, photothermal conversion ability, good biocompatibility, and multiple biological activities. In vitro scratch healing of fibroblast L929 cells and the tube formation of HUVECs provide evidence that the PGA composite hydrogels could promote cell proliferation, migration, and angiogenesis with the assistance of mild photothermia. Moreover, these composite hydrogels plus mild photothermia could effectively eliminate reactive oxygen species (ROS), alleviate inflammation, and polarize the pro-inflammatory M1 macrophage phenotype into the pro-healing M2 phenotype to accelerate wound healing, as assessed by means of fluorescent microscopy, flow cytometry, and quantitative real-time polymerase chain reaction (qRT-PCR). Meanwhile, a rat liver bleeding model illustrates that the composite hydrogels reduced the blood loss ratio to about 10% and shortened the hemostasis time to about 25 s better than commercial chitosan-based hemostats. Furthermore, the full-thickness rat skin defect models showcase that the composite hydrogels plus mild photothermia could proheal wounds completely with a fast healing rate, optimal neovascularization, and collagen deposition. Therefore, the biodegradable polypeptide PGA composite hydrogels are promising as potent wound hemostats and dressings.
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Affiliation(s)
- Yanzheng Chen
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
| | - Xueliang Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
| | - Qing Wang
- Department of Stomatology, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, 200080, P. R. China
| | - Chang Du
- Clinical Cancer Institute, Center for Translational Medicine, Naval Military Medical University, Shanghai, 200433, P. R. China.
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Chang-Ming Dong
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
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