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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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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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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; 25:5786-5797. [PMID: 38935055 DOI: 10.1021/acs.biomac.4c00463] [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: 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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Jahanimoghadam F, Javidan A, Ranjbar M, Torabi M, Kakooei S, Sharififar F. The healing effect of nano emulsified Plantago major L extract on oral wounds in a wistar rat model. BMC Complement Med Ther 2024; 24:327. [PMID: 39227926 PMCID: PMC11370219 DOI: 10.1186/s12906-024-04621-z] [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: 11/16/2023] [Accepted: 08/18/2024] [Indexed: 09/05/2024] Open
Abstract
INTRODUCTION Oral lesions are a common clinical symptom arising from various etiologies and disrupt the patient's quality of life. However, no definite treatment is not yet possible, due to the constantly changing environment of the mouth. In recent years, herbal treatments have gained popularity among patients and physicians due to their availability, safety, affordability, and antimicrobial properties. This research aims to investigate the therapeutic effects of a nano-emulsion of Plantago major standardized extract (PMSE) on oral ulcers in a Wistar rat model using histomorphometry and stereological parameters. MATERIALS AND METHODS The study involved 72 Wistar rats divided randomly into 24 groups of 3 each: groups A1 to A4 received one dose to 4 doses of 5% PMSE nano emulsion, groups B1 to B4 received one dose to 4 doses of 10% PMSE nano emulsion, and groups C1 to C4 received one dose to 4 doses of 20% PMSE nano emulsion, groups D1 to D4 received one dose to 4 doses of nano-emulsion without PMSE, groups E1 to E4 received one dose to 4 doses of PMSE, and group F served as the control group. An incision measuring 2 mm in diameter was made in the animals' hard palate using a biopsy punch. A swab containing the necessary material was used to administer the medication orally to the wound. Histological samples were collected on days 2, 4, 6, and 8 and sent to the pathology laboratory for examination. Data analysis was performed using SPSS 26 and setting statistical significance at p < 0.05. RESULTS Group A showed a high rate of complete and normal re-epithelialization of the wound at 66.7%, compared to the other groups. Group D had a re-epithelialization rate of 50%, while groups C, E, and F had rates of 7.41% and group B had 7.16%. In terms of inflammation reduction, 23.88% of group A had no inflammation, a higher percentage compared to the other groups. Group B and D had no inflammation in 3.33% of cases, lower than the other groups. The study evaluated frequency of re-epithelialization and inflammation levels in different groups on days 2, 4, 6, and 8 after four doses of the drug with no significant differences found among the groups. CONCLUSION None of the nano emulsions or PMSE enhanced the healing rate of oral ulcers. However, a 5% PMSE nano emulsion displayed an increase in lesion re-epithelialization.
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Affiliation(s)
- Fatemeh Jahanimoghadam
- Social Determinants on Oral Health Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Mehdi Ranjbar
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Molook Torabi
- Kerman Social Determinants on Oral Health Research Center, Department of Oral Pathology, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
| | - Sina Kakooei
- Dental and Oral Diseases Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Fariba Sharififar
- Herbal and Traditional Medicines Research Center, Kerman University of Medical Sciences, Kerman, Iran.
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Visarnta S, Ratisoontorn C, Panichuttra A, Sinpitaksakul P, Chantarangsu S, Dhanuthai K. Macrophage polarization in human periapical lesions in relation to histopathological diagnosis, clinical features and lesion volume: An ex vivo study. Int Endod J 2024. [PMID: 39222032 DOI: 10.1111/iej.14138] [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: 12/19/2023] [Revised: 07/25/2024] [Accepted: 08/09/2024] [Indexed: 09/04/2024]
Abstract
AIM To evaluate M1 and M2 macrophage polarization in radicular cysts and periapical granulomas through an immunohistochemical analysis and the correlation between macrophage polarization and histopathological diagnosis, clinical characteristics and lesion volume using cone-beam computed tomography. METHODOLOGY Periapical biopsies diagnosed as radicular cysts (n = 52) and periapical granulomas (n = 51) were analysed by immunohistochemical method. Teeth with periapical lesion with no history of root canal treatment (primary lesion) and lesions persistent to root canal treatment (persistent lesions) were included. Pathological diagnosis, patients' age, gender and clinical characteristics were obtained from treatment records. A cone-beam computed tomographic periapical volume index (CBCTPAVI) score was assigned to each periapical lesion based on the volume of the lesion. Immuno-expressions of CD68 and CD163 were quantified. The CD68/CD163 ratio was adopted to represent M1 or M2 macrophage polarization. Mann-Whitney U test was used to determine the different CD68/CD163 ratio between groups of radicular cyst and periapical granuloma. Spearman's correlation test was performed to assess the correlation between the CD68/CD163 ratio and lesion volume and CBCTPAVI score. RESULTS Radicular cysts and periapical granulomas had CD68/CD163 median of 2.05 (IQR = 1.33) and 1.26 (IQR = 0.81), respectively. A significantly higher CD68/CD163 ratio was observed in radicular cysts (p < .001). In contrast, periapical granulomas had significantly lower median of CD68/CD163 ratio. Larger lesions had a higher median of CD68/CD163 ratio, while smaller lesions had lower median of CD68/CD163 ratio (p = .007, rs = .262). CD68/CD163 ratio was significantly correlated with the CBCTPAVI score in the overall periapical lesions (p = .002, rs = .306). The higher CD68/CD163 ratio in larger lesions indicated a higher degree of M1 polarization compared to smaller lesions. Regarding the pathological diagnosis, there was a significant positive correlation between CBCTPAVI score and CD68/CD163 ratio in periapical granulomas (p < .001, rs = .453), whereas the negative correlation was observed for radicular cysts (p < .001, rs = -.471). CONCLUSIONS Periapical granulomas are characterized by a M2-dominant macrophage polarization, while radicular cysts have significantly higher M1 macrophages. The higher degree of M1 macrophage polarization was significantly correlated with larger volume and higher CBCTPAVI scores of overall periapical lesion and periapical granuloma.
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Affiliation(s)
- Supanant Visarnta
- Section of Endodontics, Department of Operative Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Chootima Ratisoontorn
- Section of Endodontics, Department of Operative Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Anchana Panichuttra
- Section of Endodontics, Department of Operative Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Phonkit Sinpitaksakul
- Department of Radiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Soranun Chantarangsu
- Department of Oral Pathology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Kittipong Dhanuthai
- Department of Oral Pathology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
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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] [MESH Headings] [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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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] [MESH Headings] [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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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; 41:e15388. [PMID: 38934613 DOI: 10.1111/dme.15388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [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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Hong WF, Zhang F, Wang N, Bi JM, Zhang DW, Wei LS, Song ZT, Mills GB, Chen MM, Li XX, Du SS, Yu M. Dynamic immunoediting by macrophages in homologous recombination deficiency-stratified pancreatic ductal adenocarcinoma. Drug Resist Updat 2024; 76:101115. [PMID: 39002266 DOI: 10.1016/j.drup.2024.101115] [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: 05/13/2024] [Revised: 06/19/2024] [Accepted: 06/25/2024] [Indexed: 07/15/2024]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a lethal disease, notably resistant to existing therapies. Current research indicates that PDAC patients deficient in homologous recombination (HR) benefit from platinum-based treatments and poly-ADP-ribose polymerase inhibitors (PARPi). However, the effectiveness of PARPi in HR-deficient (HRD) PDAC is suboptimal, and significant challenges remain in fully understanding the distinct characteristics and implications of HRD-associated PDAC. We analyzed 16 PDAC patient-derived tissues, categorized by their homologous recombination deficiency (HRD) scores, and performed high-plex immunofluorescence analysis to define 20 cell phenotypes, thereby generating an in-situ PDAC tumor-immune landscape. Spatial phenotypic-transcriptomic profiling guided by regions-of-interest (ROIs) identified a crucial regulatory mechanism through localized tumor-adjacent macrophages, potentially in an HRD-dependent manner. Cellular neighborhood (CN) analysis further demonstrated the existence of macrophage-associated high-ordered cellular functional units in spatial contexts. Using our multi-omics spatial profiling strategy, we uncovered a dynamic macrophage-mediated regulatory axis linking HRD status with SIGLEC10 and CD52. These findings demonstrate the potential of targeting CD52 in combination with PARPi as a therapeutic intervention for PDAC.
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Affiliation(s)
- Wei-Feng Hong
- Department of Pancreas Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China; Department of Radiation Oncology, Zhejiang Cancer Hospital, Hangzhou 310005, China; Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310005, China; Zhejiang Key Laboratory of Radiation Oncology, Hangzhou 310005, China
| | - Feng Zhang
- Department of Pancreas Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Nan Wang
- Cosmos Wisdom Biotech, co. ltd, Building 10, No. 617 Jiner Road, Hangzhou, Zhejiang, China
| | - Jun-Ming Bi
- Department of Urology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Ding-Wen Zhang
- Department of Pancreas Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Lu-Sheng Wei
- Department of Pancreas Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Zhen-Tao Song
- Mills Institute for Personalized Cancer Care, Fynn Biotechnologies Ltd. Jinan, Shandong, China
| | - Gordon B Mills
- Division of Oncological Sciences, Knight Cancer Institute, Oregon Health & Science University, Portland, USA
| | - Min-Min Chen
- Shenzhen Bay Laboratory, Shenzhen, Guangdong, China
| | - Xue-Xin Li
- Department of Physiology and Pharmacology, Karolinska Institutet, Solna 17165, Sweden.
| | - Shi-Suo Du
- Department of Radiation Oncology, Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Min Yu
- Department of Pancreas Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China.
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Huang B, Xiao F, Chen Z, Hu T, Qiu R, Wang W, You W, Su X, Hu W, Wang Z. Coaxial electrospun nanofiber accelerates infected wound healing via engineered probiotic biofilm. Int J Biol Macromol 2024; 279:135100. [PMID: 39197632 DOI: 10.1016/j.ijbiomac.2024.135100] [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: 05/22/2024] [Revised: 08/10/2024] [Accepted: 08/24/2024] [Indexed: 09/01/2024]
Abstract
Bacterial infection is the primary cause of delayed wound healing. Infected wounds suffer from a series of harmful factors in the harsh wound microenvironment (WME), greatly damaging their potential for tissue regeneration. Herein, a novel probiotic biofilm-based antibacterial strategy is proposed through experimentation. Firstly, a series of coaxial polycaprolactone (PCL) / silk fibroin (SF) nanofiber films (termed as PSN-n, n = 0.5, 1.0, 1.5, and 2.0, respectively) are prepared by coaxial electrospinning and their physiochemical properties are comprehensively characterized. Afterward, the PSN-1.5 is selected and co-cultured with L. paracasei to allow the formation of probiotic biofilm. The probiotic biofilm-loaded PSN-1.5 nanofiber film (termed as PSNL-1.5) exhibits relatively good broad-spectrum antibacterial activity, biocompatibility, and enhanced pro-regenerative capability by immunoregulation of M2 macrophage. A wound healing assay is performed using an S. aureus-infected skin defect model. The application effect of PSNL-1.5 is significantly better than that of a commercial nano‑silver burn & scald dressing (Anson®), revealing huge potential for clinical translation. This study is of significant novelty in demonstrating the antibacterial and pro-regenerative abilities of probiotic biofilms. The product of this study will be extensively used for treating infected wounds or other wounds.
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Affiliation(s)
- Bohan Huang
- Department of Urology, Institute of Urology, Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Ministry of Education Key Laboratory of the Green Preparation and Application for Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Feng Xiao
- Orthopedic Hospital, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Zesheng Chen
- Ministry of Education Key Laboratory of the Green Preparation and Application for Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Tao Hu
- Ministry of Education Key Laboratory of the Green Preparation and Application for Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Ruiyang Qiu
- Department of Urology, Institute of Urology, Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Wang Wang
- Department of Urology, Institute of Urology, Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Wenjie You
- Orthopedic Hospital, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Xinjun Su
- Department of Urology, Institute of Urology, Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
| | - Weikang Hu
- Ministry of Education Key Laboratory of the Green Preparation and Application for Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
| | - Zijian Wang
- Department of Urology, Institute of Urology, Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Department of Biomedical Engineering, Hubei Province Key Laboratory of Allergy and Immune Related Disease, TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Wuhan 430071, China.
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11
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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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12
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Liu Y, Han B, Tan L, Ji D, Chen X. IGF1 and CXCR4 Respectively Related With Inhibited M1 Macrophage Polarization in Keloids. J Craniofac Surg 2024:00001665-990000000-01799. [PMID: 39145631 DOI: 10.1097/scs.0000000000010479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Accepted: 06/17/2024] [Indexed: 08/16/2024] Open
Abstract
PURPOSE The pathophysiology of keloid remains unclear. Exploring the immune heterogeneity and new biomarkers of keloids can help design new therapeutic targets for keloid treatments and prevention. METHODS The authors performed single-cell RNA sequencing analysis and bulk data differential gene expression analysis of public datasets(GSE92566 and GSE163973). They used Gene Ontology (GO), Gene Set Enrichment Analysis (GSEA), and immune infiltration analysis to identify the function of the differential expressed genes. Besides, the authors performed qt-PCR on keloid tissue and adjacent normal tissues from 3 patients for further verification. RESULTS M2 macrophage increased in keloid samples than M1 macrophage. The authors identified 2 potential novel biomarkers of keloid, IGF1 and CXCR4, which could inhibit M1 macrophage polarization. The potential mechanism could be inhibiting immune responses and anti-inflammatory activities through INF signaling and E2F targeting. The differential expression of the 2 genes was verified by clinical samples. CONCLUSIONS The authors identified 2 immune signaling molecules associated with keloid formation (IGF1 and CXCR4) and analyzed their potential pathogenic mechanisms.
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Affiliation(s)
- Ying Liu
- Department of Plastic Surgery, Beijing Hospital of Integrated Traditional Chinese and Western Medicine
- Department of Scar & Wound Treatment, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Bing Han
- Department of Scar & Wound Treatment, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Liuchang Tan
- Department of Plastic and Cosmetic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Dongshuo Ji
- Department of Plastic Surgery, Beijing Hospital of Integrated Traditional Chinese and Western Medicine
| | - Xiaofang Chen
- Department of Plastic and Reconstructive Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing
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13
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Qi Y, Ma G. Comprehensive bioinformatic analysis reveals a fibroblast-related gene signature for the diagnosis of keloids. Heliyon 2024; 10:e35011. [PMID: 39157347 PMCID: PMC11327581 DOI: 10.1016/j.heliyon.2024.e35011] [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: 02/16/2024] [Revised: 07/12/2024] [Accepted: 07/22/2024] [Indexed: 08/20/2024] Open
Abstract
Aim A keloid is a fibroproliferative cutaneous disorder secondary to skin injury, caused by an imbalance in fibroblast proliferation and apoptosis. However, the pathogenesis is not fully understood. In this study, candidate genes for keloid were identified and used to construct a diagnostic model. Methods Three datasets related to keloids were downloaded from NCBI Gene Expression Omnibus. Fibroblast-related genes were screened, and fibroblast scores for the samples were determined. Then, a weighted gene co-expression network analysis (WGCNA) was used to identify modules and genes associated with keloids and the fibroblast score. Differentially expressed genes (DEGs) between keloid and control samples were identified and compared with fibroblast-related genes and genes in the modules. Overlapping genes were evaluated using functional enrichment analyses. Signature genes were further screened, and a diagnostic model was constructed. Finally, correlations between immune cell frequences and signature genes were analyzed. Results In total, 124 fibroblast-related genes were obtained, and the fibroblast score was an effective indicator of the sample type. WGCNA revealed five modules that were significantly correlated with both the disease state and fibroblast scores, including 1760 genes. Additionally, 589 DEGs were identified, including 16 that overlapped with fibroblast-related genes and genes identified in the WGCNA. These genes were related to cell proliferation and apoptosis and were involved in FoxO, Rap1, p53, Ras, MAPK, and PI3K-Akt pathways. Finally, a six fibroblast-related gene signature (CCNB1, EGFR, E2F8, BTG1, TP63, and IGF1) was identified and used for diagnostic model construction. The proportions of regulatory T cells and macrophages were significantly higher in keloid tissues than in controls. Conclusion The established model based on CCNB1, EGFR, E2F8, BTG1, TP63, and IGF1 showed good performance and may be useful for keloid diagnosis.
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Affiliation(s)
- Yue Qi
- Plastic Surgery Hospital Chinese Academy of Medical Sciences, 33rd BaDaChu Street, Beijing, 100144, China
| | - GuiE Ma
- Plastic Surgery Hospital Chinese Academy of Medical Sciences, 33rd BaDaChu Street, Beijing, 100144, China
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14
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Zhang W, Zhang J, Jiao D, Tang Q, Gao X, Li Z, Yang F, Zhao Z, Yang L. Single-Cell RNA Sequencing Reveals a Unique Fibroblastic Subset and Immune Disorder in Lichen Sclerosus Urethral Stricture. J Inflamm Res 2024; 17:5327-5346. [PMID: 39157587 PMCID: PMC11330248 DOI: 10.2147/jir.s466317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 08/02/2024] [Indexed: 08/20/2024] Open
Abstract
Purpose Lichen sclerosus urethral stricture disease (LS USD) is a refractory and progressive disease primarily affecting the anterior urethra in males. Various potential etiological factors, such as genetics, autoimmunity, infection, and exposure to infectious urine, have been suggested. However, the accurate etiology of LS in the male urethra remains unclear. Patients and Methods In this study, we conducted single-cell RNA sequencing to identify the transcriptional profiles of three patients with LS USD and three patients with non-LS USD. Immunofluorescence was used to confirm the single-cell sequence results. Results Our study revealed distinct subsets of vein endothelial cells (ECs), smooth muscle cells (SMCs), and fibroblasts (FBs) with high proportions in LS USD, contributing to the tissue microenvironment primarily involved in proinflammatory and immune responses. In particular, FBs displayed a unique subset, Fib7, which is exclusively present in LS USD, and exhibited high expression levels of SAA1 and SAA2. The accumulation of macrophages, along with the dysregulated ratios of M1/M2-like phenotype macrophages, may be engaged in the pathogenesis of LS USD. Through cell-cell communication analysis, we identified significant interactions involving CXCL8/ACKR1 and CCR7/CCL19 in LS USD. Remarkably, Fib7 exhibited exclusive communication with IL-1B macrophages through the SAA1/FPR2 receptor-ligand pair. Conclusion Our study provides a profound understanding of the tissue microenvironment in LS USD, which may be valuable for understanding the pathogenesis of LS USD.
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Affiliation(s)
- Wei Zhang
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710038, People’s Republic of China
| | - Jiayu Zhang
- Department of Urology, Air Force Hospital of Southern Theater Command, Guangzhou, Guangdong, 510062, People’s Republic of China
| | - Dian Jiao
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710038, People’s Republic of China
| | - Qisheng Tang
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710038, People’s Republic of China
| | - Xiaoping Gao
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710038, People’s Republic of China
| | - Zhenyu Li
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710038, People’s Republic of China
| | - Fa Yang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710032, People’s Republic of China
| | - Zhiguang Zhao
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710038, People’s Republic of China
| | - Longfei Yang
- Department of Transfusion Medicine, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710038, People’s Republic of China
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15
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Ma B, Chen F, Liu X, Zhang Y, Gou S, Meng Q, Liu P, Cai K. Modified Titanium Implants Satisfy the Demands of Diabetic Osseointegration via Sequential Regulation of Macrophages and Mesenchymal Stem Cells. Adv Healthc Mater 2024:e2401556. [PMID: 39138979 DOI: 10.1002/adhm.202401556] [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: 04/27/2024] [Revised: 07/21/2024] [Indexed: 08/15/2024]
Abstract
The application of titanium (Ti) implants for patients with diabetes mellitus (DM) is still facing a significant challenge due to obstacles such as hyperglycemia, reactive oxygen species (ROS), and chronic inflammation, which hinders osseointegration. To address this issue, a Ti implant with dual functions of regulating polarization of macrophages and facilitating osseointergration is developed via hydrothermal reaction and hydrogel coating. The reactive oxygen species (ROS) and glucose (Glu) responsive hydrogel coating can locally deliver adenosine (ADO) in the early stage of implantation. The controlled release of ADO regulated the phenotype of macrophages, restored oxidative balance, and enhanced mitochondrial function during the early stages of implantation. Subsequently, strontium (Sr) ions will be released to promote osteogenic differentiation and proliferation of mesenchymal stem cells (MSCs), as the hydrogel coating degraded. It eventually leads to bone reconstruction during the late stages, aligning with the biological cascade of bone healing. The modified Ti implants showed effective osteogenesis for bone defects in DM patients, shedding light on the design and biological mechanisms of surface modification. This research offers promising potential for improving the treatment of bone-related complications in diabetic patients.
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Affiliation(s)
- Bo Ma
- Key laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Fangye Chen
- Key laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Xin Liu
- Key laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Yang Zhang
- Key laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Shuangquan Gou
- Key laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Qianxiang Meng
- Key laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Peng Liu
- Key laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Kaiyong Cai
- Key laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
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16
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Summer M, Ali S, Fiaz U, Hussain T, Khan RRM, Fiaz H. Revealing the molecular mechanisms in wound healing and the effects of different physiological factors including diabetes, age, and stress. J Mol Histol 2024:10.1007/s10735-024-10223-3. [PMID: 39120834 DOI: 10.1007/s10735-024-10223-3] [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: 02/29/2024] [Accepted: 07/05/2024] [Indexed: 08/10/2024]
Abstract
Wounds are the common fates in various microbial infections and physical damages including accidents, surgery, and burns. In response, a healthy body with a potent immune system heals that particular site within optimal time by following the coagulation, inflammation, proliferation, and remodeling phenomenon. However, certain malfunctions in the body due to various diseases particularly diabetes and other physiological factors like age, stress, etc., prolong the process of wound healing through various mechanisms including the Akt, Polyol, and Hexosamine pathways. The current review thoroughly explains the wound types, normal wound healing mechanisms, and the immune system's role. Moreover, the mechanistic role of diabetes is also elaborated comprehensively.
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Affiliation(s)
- Muhammad Summer
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, GC University Lahore, Lahore, 54000, Pakistan.
| | - Shaukat Ali
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, GC University Lahore, Lahore, 54000, Pakistan.
| | - Umaima Fiaz
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, GC University Lahore, Lahore, 54000, Pakistan
| | - Tauqeer Hussain
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, GC University Lahore, Lahore, 54000, Pakistan
| | | | - Hashim Fiaz
- Ammer-ud-Din Medical College, Lahore, 54000, Pakistan
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17
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Zhang W, Ge Z, Xiao Y, Liu D, Du J. Antioxidant and Immunomodulatory Polymer Vesicles for Effective Diabetic Wound Treatment through ROS Scavenging and Immune Modulating. NANO LETTERS 2024; 24:9494-9504. [PMID: 39058893 DOI: 10.1021/acs.nanolett.4c01869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
Abstract
Chronic diabetic wound patients usually show high glucose levels and systemic immune disorder, resulting in high reactive oxygen species (ROS) levels and immune cell dysfunction, prolonged inflammation, and delayed wound healing. Herein, we prepared an antioxidant and immunomodulatory polymer vesicle for diabetic wound treatment. This vesicle is self-assembled from poly(ε-caprolactone)36-block-poly[lysine4-stat-(lysine-mannose)22-stat-tyrosine)16] ([PCL36-b-P[Lys4-stat-(Lys-Man)22-stat-Tyr16]). Polytyrosine is an antioxidant polypeptide that can scavenge ROS. d-Mannose was introduced to afford immunomodulatory functions by promoting macrophage transformation and Treg cell activation through inhibitory cytokines. The mice treated with polymer vesicles showed 23.7% higher Treg cell levels and a 91.3% higher M2/M1 ratio than those treated with PBS. Animal tests confirmed this vesicle accelerated healing and achieved complete healing of S. aureus-infected diabetic wounds within 8 days. Overall, this is the first antioxidant and immunomodulatory vesicle for diabetic wound healing by scavenging ROS and regulating immune homeostasis, opening new avenues for effective diabetic wound healing.
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Affiliation(s)
- Wenqing Zhang
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Zhenghong Ge
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Yufen Xiao
- Department of Gynaecology and Obstetrics, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China
| | - Danqing Liu
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Jianzhong Du
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
- Department of Gynaecology and Obstetrics, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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18
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Tang W, Xie D, Wang X, Liu G, Huang G. Design and decoration of copper nanoparticles into lignosulfonate-starch bionanocomposite: Characterization and evaluation of its therapeutic properties on burn wound. Int J Biol Macromol 2024; 278:134389. [PMID: 39098681 DOI: 10.1016/j.ijbiomac.2024.134389] [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: 06/05/2024] [Revised: 07/29/2024] [Accepted: 07/30/2024] [Indexed: 08/06/2024]
Abstract
In this report, eco-friendly synthesis for the production of copper nanoparticles by employing the sodium lignosulfonate (NaLS) mixed starch composite (NaLS-Starch/Cu NPs). NaLS-Starch mixed hydrogel has notable reducing and stabilizing potential for preparation of Cu nanoparticles. Characterization of NaLS-Starch/Cu NPs bionanocomposite was subjected to analysis of spectroscopic and microscopic techniques, including FE-SEM, TEM, EDS-elemental mapping, particle size distribution, XRD and ICP. TEM images displayed the spherical structured NaLS-Starch/Cu NPs, averaging 5-10 nm size. NaLS-Starch/Cu NPs were applied to cure the induced burn wounds in 60 Wistar rats. A group was considered as control group. The animals were treated with basal, tetracycline 3 % and NaLS-Starch/Cu NPs 3 % for 30 days and the treatment efficacy was determined according to the burn wound area reduction and molecular and histological characteristics. Taken together, these results support therapeutic use of NaLS-Starch/Cu NPs as potent ointment that may be proposed for burn wound healing. NaLS-Starch/Cu NPs ointment increased the levels of platelet-derived growth factors (PDGF) and fibroblast growth factor (bFGF). The mean wound surface, in all groups treated by NaLS-Starch/Cu NPs was larger than control group.
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Affiliation(s)
- Wenwen Tang
- Department of Medical Cosmetology and Burn & Plastic Surgery, Shanxi Bethune Hospital, No. 99 Longcheng Road, Taiyuan City, Shanxi Province 030000, China
| | - Dong Xie
- Department of Thoracic Surgery, Traditional Chinese medical hospital of Huangdao District Qingdao, Qingdao, Shandong, 266500, China
| | - Xinli Wang
- Department of Neurosurgery, The Fourth People's Hospital of Jinan, No.50, Shifan Road, Tianqiao District, Jinan, 250000, China
| | - Guiyang Liu
- Department of Neurosurgery, The Fourth People's Hospital of Jinan, No.50, Shifan Road, Tianqiao District, Jinan, 250000, China
| | - Guobao Huang
- Department of Burn and Plastic Surgery, Central Hospital Affiliated to Shandong First Medical University, No.105, Jiefang Road, Lixia District, Jinan 250013, Shandong, China.
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19
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Wang J, Li J, Wang S, Pan Y, Yang J, Yin L, Dou H, Hou Y. Amphiregulin secreted by umbilical cord multipotent stromal cells protects against ferroptosis of macrophages via the activating transcription factor 3-CD36 axis to alleviate endometrial fibrosis. Stem Cells 2024; 42:763-776. [PMID: 38733123 DOI: 10.1093/stmcls/sxae035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 04/10/2024] [Indexed: 05/13/2024]
Abstract
Endometrium fibrosis is the leading cause of uterine infertility. Macrophages participated in the occurrence and development of endometrial fibrosis. We previously reported that human umbilical cord multipotent stromal cells (hUC-MSCs) exerted their therapeutic effect in a macrophage-dependent manner in endometrial fibrosis. However precise mechanisms by which hUC-MSCs may influence macrophages in endometrial fibrosis remain largely unexplored. Here, we demonstrated that abnormal iron and lipid metabolism occurred in patients with intrauterine adhesions (IUA) and murine models. Ferroptosis has been proven to contribute to the progression of fibrotic diseases. Our results revealed that pharmacological activation of ferroptosis by Erastin aggravated endometrial fibrosis, while inhibition of ferroptosis by Ferrostatin-1 ameliorated endometrial fibrosis in vivo. Moreover, ferroptosis of macrophages was significantly upregulated in endometria of IUA murine models. Of note, transcriptome profiles revealed that CD36 gene expression was significantly increased in patients with IUA and immunofluorescence analysis showed CD36 protein was mainly located in macrophages. Silencing CD36 in macrophages could reverse cell ferroptosis. Dual luciferase reporter assay revealed that CD36 was the direct target of activation transcription factor 3 (ATF3). Furthermore, through establishing coculture system and IUA murine models, we found that hUC-MSCs had a protective role against macrophage ferroptosis and alleviated endometrial fibrosis related to decreased CD36 and ATF3. The effect of hUC-MSCs on macrophage ferroptosis was attributed to the upregulation of amphiregulin (AREG). Our data highlighted that macrophage ferroptosis occurred in endometrial fibrosis via the ATF3-CD36 pathway and hUC-MSCs protected against macrophage ferroptosis to alleviate endometrial fibrosis via secreting AREG. These findings provided a potential target for therapeutic implications of endometrial fibrosis.
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Affiliation(s)
- Jiali Wang
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing 210093, People's Republic of People's Republic of China
| | - Jingman Li
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing 210093, People's Republic of People's Republic of China
| | - Shuangan Wang
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing 210093, People's Republic of People's Republic of China
| | - Yuchen Pan
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing 210093, People's Republic of People's Republic of China
- Jiangsu International Laboratory of Immunity and Metabolism, The Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou 221004, People's Republic of China
| | - Jingjing Yang
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing 210093, People's Republic of People's Republic of China
| | - Lijie Yin
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing 210093, People's Republic of People's Republic of China
| | - Huan Dou
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing 210093, People's Republic of People's Republic of China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing 210093, People's Republic of China
| | - Yayi Hou
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing 210093, People's Republic of People's Republic of China
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Cui Y, He J, Yu Z, Zhou S, Cao D, Jiang T, Fang B, Li G. Adipose-derived stem cells transplantation improves survival and alleviates contraction of skin grafts via promoting macrophages M2 polarization. Skin Res Technol 2024; 30:e13918. [PMID: 39171846 PMCID: PMC11339854 DOI: 10.1111/srt.13918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2024] [Accepted: 07/24/2024] [Indexed: 08/23/2024]
Abstract
BACKGROUND Full-thickness skin grafts are widely used in plastic and reconstructive surgery. The main limitation of skin grafting is the poor textural durability and associated contracture, which often needs further corrective surgery. Excessive inflammation is the main reason for skin graft contractions, which involve overactivation of myofibroblasts. These problems have prompted the development of new therapeutic approaches, including macrophage polarization modulation and stem cell-based therapies. Currently, adipose-derived stem cells (ASCs) have shown promise in promoting skin grafts survival and regulating macrophage phenotypes. However, the roles of ASCs on macrophages in decreasing skin grafts contraction remain unknown. MATERIALS AND METHODS Rat adipose-derived stem cells (rASCs) were isolated from rat inguinal adipose tissues. Full-thickness skin graft model was constructed on male rats divided into control group and rASCs treatment group. Skin graft was assessed for concentration, elasticity modulus and stiffness. Rat bone marrow-derived macrophages (rBMDMs) were isolated from rat femurs, and subsequent RT-qPCR and coculture assays were carried out to explore the cellular mechanisms. Immunohistochemical and immunofluorescence staining were used to verify mechanisms in vivo. RESULTS In vivo results showed that after injection of ASCs, improved texture, increased survival and inhibited contraction of skin grafts were seen. Vascularization was also improved as illustrated by laser perfusion image and vascular endothelial growth factor (VEGF) concentration. Histological analysis revealed that ASCs injection significantly reduced expression of pro-inflammatory cytokines (TNF-a, IL-1β) and increased expression of anti-inflammatory (IL-10) and pro-healing cytokines (IGF-1). At cellular level, after co-culturing with rASCs, rat bone marrow derived macrophages (rBMDMs) favored M2 polarization even under inflammatory stimulus. CONCLUSION ASCs treatment enhanced vascularization via angiogenic cytokines secretion and alleviated inflammatory environment in skin grafts by driving M2 macrophages polarization, which improved survival and decreased skin grafts contraction. Our work showed that ASCs transplantation can be harnessed to enhance therapeutic efficacy of skin grafting in cutaneous defects treatment.
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Affiliation(s)
- Yuying Cui
- Department of Plastic and Reconstructive SurgeryThe First Affiliated Hospital of Zhengzhou UniversityHenanChina
| | - Jiahao He
- Department of Plastic and Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Zheyuan Yu
- Department of Plastic and Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Sizheng Zhou
- Department of Plastic and Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Dejun Cao
- Department of Plastic and Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Taoran Jiang
- Department of Plastic and Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Bin Fang
- Department of Plastic and Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Guangshuai Li
- Department of Plastic and Reconstructive SurgeryThe First Affiliated Hospital of Zhengzhou UniversityHenanChina
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21
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Liu Y, Liu X, Dorizas CA, Hao Z, Lee RK. Macrophages Modulate Optic Nerve Crush Injury Scar Formation and Retinal Ganglion Cell Function. Invest Ophthalmol Vis Sci 2024; 65:22. [PMID: 39140963 PMCID: PMC11328886 DOI: 10.1167/iovs.65.10.22] [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] [Indexed: 08/15/2024] Open
Abstract
Purpose Optic nerve (ON) injuries can result in vision loss via structural damage and cellular injury responses. Understanding the immune response, particularly the role of macrophages, in the cellular response to ON injury is crucial for developing therapeutic approaches which affect ON injury repair. The present study investigates the role of macrophages in ON injury response, fibrotic scar formation, and retinal ganglion cell (RGC) function. Methods The study utilizes macrophage Fas-induced apoptosis (MaFIA) mice to selectively deplete hematogenous macrophages and explores the impact macrophages have on ON injury responses. Histological and immunofluorescence analyses were used to evaluate macrophage expression levels and fibrotic scar formation. Pattern electroretinogram (PERG) recordings were used to assess RGC function as result of ON injury. Results Successful macrophage depletion was induced in MaFIA mice, which led to reduced fibrotic scar formation in the ON post-injury. Despite an increase in activated macrophages in the retina, RGC function was preserved, as demonstrated by normal PERG waveforms for up to 2 months post-injury. The study suggests a neuroprotective role for macrophage depletion in ON damage repair and highlights the complex immune response to ON injury. Conclusions To our knowledge, this study is the first to use MaFIA mice to demonstrate that targeted depletion of hematogenous macrophages leads to a significant reduction in scar size and the preservation of RGC functionality after ON injury. These findings highlight the key role of hematogenous macrophages in the response to ON injury and opens new avenues for therapeutic interventions in ON injuries. Future research should focus on investigating the distinct roles of macrophage subtypes in ON injury and potential macrophage-associated molecular targets to improve ON regeneration and repair.
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Affiliation(s)
- Yuan Liu
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Xiangxiang Liu
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, United States
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Christopher A Dorizas
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Zixuan Hao
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Richard K Lee
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, United States
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22
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Yan L, Wang J, Cai X, Liou Y, Shen H, Hao J, Huang C, Luo G, He W. Macrophage plasticity: signaling pathways, tissue repair, and regeneration. MedComm (Beijing) 2024; 5:e658. [PMID: 39092292 PMCID: PMC11292402 DOI: 10.1002/mco2.658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 06/24/2024] [Accepted: 06/25/2024] [Indexed: 08/04/2024] Open
Abstract
Macrophages are versatile immune cells with remarkable plasticity, enabling them to adapt to diverse tissue microenvironments and perform various functions. Traditionally categorized into classically activated (M1) and alternatively activated (M2) phenotypes, recent advances have revealed a spectrum of macrophage activation states that extend beyond this dichotomy. The complex interplay of signaling pathways, transcriptional regulators, and epigenetic modifications orchestrates macrophage polarization, allowing them to respond to various stimuli dynamically. Here, we provide a comprehensive overview of the signaling cascades governing macrophage plasticity, focusing on the roles of Toll-like receptors, signal transducer and activator of transcription proteins, nuclear receptors, and microRNAs. We also discuss the emerging concepts of macrophage metabolic reprogramming and trained immunity, contributing to their functional adaptability. Macrophage plasticity plays a pivotal role in tissue repair and regeneration, with macrophages coordinating inflammation, angiogenesis, and matrix remodeling to restore tissue homeostasis. By harnessing the potential of macrophage plasticity, novel therapeutic strategies targeting macrophage polarization could be developed for various diseases, including chronic wounds, fibrotic disorders, and inflammatory conditions. Ultimately, a deeper understanding of the molecular mechanisms underpinning macrophage plasticity will pave the way for innovative regenerative medicine and tissue engineering approaches.
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Affiliation(s)
- Lingfeng Yan
- Institute of Burn ResearchState Key Laboratory of Trauma and Chemical Poisoningthe First Affiliated Hospital of Army Medical University (the Third Military Medical University)ChongqingChina
- Chongqing Key Laboratory for Wound Damage Repair and RegenerationChongqingChina
| | - Jue Wang
- Institute of Burn ResearchState Key Laboratory of Trauma and Chemical Poisoningthe First Affiliated Hospital of Army Medical University (the Third Military Medical University)ChongqingChina
- Chongqing Key Laboratory for Wound Damage Repair and RegenerationChongqingChina
| | - Xin Cai
- Institute of Burn ResearchState Key Laboratory of Trauma and Chemical Poisoningthe First Affiliated Hospital of Army Medical University (the Third Military Medical University)ChongqingChina
- Chongqing Key Laboratory for Wound Damage Repair and RegenerationChongqingChina
| | - Yih‐Cherng Liou
- Department of Biological SciencesFaculty of ScienceNational University of SingaporeSingaporeSingapore
- National University of Singapore (NUS) Graduate School for Integrative Sciences and EngineeringNational University of SingaporeSingaporeSingapore
| | - Han‐Ming Shen
- Faculty of Health SciencesUniversity of MacauMacauChina
| | - Jianlei Hao
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and TreatmentZhuhai Institute of Translational MedicineZhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University)Jinan UniversityZhuhaiGuangdongChina
- The Biomedical Translational Research InstituteFaculty of Medical ScienceJinan UniversityGuangzhouGuangdongChina
| | - Canhua Huang
- State Key Laboratory of Biotherapy and Cancer CenterWest China Hospitaland West China School of Basic Medical Sciences and Forensic MedicineSichuan University, and Collaborative Innovation Center for BiotherapyChengduChina
| | - Gaoxing Luo
- Institute of Burn ResearchState Key Laboratory of Trauma and Chemical Poisoningthe First Affiliated Hospital of Army Medical University (the Third Military Medical University)ChongqingChina
- Chongqing Key Laboratory for Wound Damage Repair and RegenerationChongqingChina
| | - Weifeng He
- Institute of Burn ResearchState Key Laboratory of Trauma and Chemical Poisoningthe First Affiliated Hospital of Army Medical University (the Third Military Medical University)ChongqingChina
- Chongqing Key Laboratory for Wound Damage Repair and RegenerationChongqingChina
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Shah FH, Lee HW. Endothelial and macrophage interactions in the angiogenic niche. Cytokine Growth Factor Rev 2024; 78:64-76. [PMID: 39019663 DOI: 10.1016/j.cytogfr.2024.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 07/10/2024] [Accepted: 07/10/2024] [Indexed: 07/19/2024]
Abstract
The interactions between vascular cells, especially endothelial cells, and macrophages play a pivotal role in maintaining the subtle balance of vascular biology, which is crucial for angiogenesis in both healthy and diseased states. These cells are central to ensuring a harmonious balance between tissue repair and preventing excessive angiogenic activity, which could lead to pathological conditions. Recent advances in sophisticated genetic engineering vivo models and novel sequencing approaches, such as single-cell RNA-sequencing, in immunobiology have significantly enhanced our understanding of the gene expression and behavior of macrophages. These insights offer new perspectives on the role macrophages play not only in development but also across various health conditions. In this review, we explore the complex interactions between multiple types of macrophages and endothelium, focusing on their impact on new blood vessel formation. By understanding these intricate interactions, we aim to provide insights into new methods for managing angiogenesis in various diseases, thereby offering hope for the development of novel therapeutic approaches.
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Affiliation(s)
- Fahad Hassan Shah
- College of Pharmacy, Chosun University, Gwangju 61452, Republic of Korea
| | - Heon-Woo Lee
- College of Pharmacy, Chosun University, Gwangju 61452, Republic of Korea.
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24
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Zhou CJ, Guo Y. Mini review on collagens in normal skin and pathological scars: current understanding and future perspective. Front Med (Lausanne) 2024; 11:1449597. [PMID: 39091289 PMCID: PMC11291465 DOI: 10.3389/fmed.2024.1449597] [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: 06/15/2024] [Accepted: 07/05/2024] [Indexed: 08/04/2024] Open
Abstract
Pathological scar tissues are characterized by the presence of overabundant collagens whose structure and organization are also different from those in unwounded skin. This causes scar tissues to lose some functions performed by normal skin, and currently, there are no effective measures to prevent scar formation. Inflammation has been shown to modulate fibroblast proliferation, differentiation, and function, hence collagen production and organization. In this minireview, we provide an overview of the current understanding of collagen, specifically collagen type I and III which are main collagens in skin, structure and fibre formation and highlight their differences between normal skin and pathological scars. We discuss the role that cytokines play in modulating fibroblast function. We also identify some potential research directions which could help to further our understanding of the complex and dynamic wound healing and scar formation process.
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Affiliation(s)
| | - Yuan Guo
- School of Food Science and Nutrition, University of Leeds, Leeds, United Kingdom
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25
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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; 7:4254-4269. [PMID: 38863157 DOI: 10.1021/acsabm.4c00532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 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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26
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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. [PMID: 39099825 PMCID: PMC11292333 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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Du Q, Dickinson A, Nakuleswaran P, Maghami S, Alagoda S, Hook AL, Ghaemmaghami AM. Targeting Macrophage Polarization for Reinstating Homeostasis following Tissue Damage. Int J Mol Sci 2024; 25:7278. [PMID: 39000385 PMCID: PMC11242417 DOI: 10.3390/ijms25137278] [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: 06/04/2024] [Revised: 06/24/2024] [Accepted: 06/27/2024] [Indexed: 07/16/2024] Open
Abstract
Tissue regeneration and remodeling involve many complex stages. Macrophages are critical in maintaining micro-environmental homeostasis by regulating inflammation and orchestrating wound healing. They display high plasticity in response to various stimuli, showing a spectrum of functional phenotypes that vary from M1 (pro-inflammatory) to M2 (anti-inflammatory) macrophages. While transient inflammation is an essential trigger for tissue healing following an injury, sustained inflammation (e.g., in foreign body response to implants, diabetes or inflammatory diseases) can hinder tissue healing and cause tissue damage. Modulating macrophage polarization has emerged as an effective strategy for enhancing immune-mediated tissue regeneration and promoting better integration of implantable materials in the host. This article provides an overview of macrophages' functional properties followed by discussing different strategies for modulating macrophage polarization. Advances in the use of synthetic and natural biomaterials to fabricate immune-modulatory materials are highlighted. This reveals that the development and clinical application of more effective immunomodulatory systems targeting macrophage polarization under pathological conditions will be driven by a detailed understanding of the factors that regulate macrophage polarization and biological function in order to optimize existing methods and generate novel strategies to control cell phenotype.
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Affiliation(s)
- Qiran Du
- Immuno-Bioengineering Group, School of Life Sciences, University of Nottingham, Nottingham NG7 2RD, UK;
| | - Anna Dickinson
- Medical School, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (A.D.); (P.N.); (S.A.)
| | - Pruthvi Nakuleswaran
- Medical School, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (A.D.); (P.N.); (S.A.)
| | - Susan Maghami
- Hull York Medical School, University of York, York YO10 5DD, UK;
| | - Savindu Alagoda
- Medical School, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (A.D.); (P.N.); (S.A.)
| | - Andrew L. Hook
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK;
| | - Amir M. Ghaemmaghami
- Immuno-Bioengineering Group, School of Life Sciences, University of Nottingham, Nottingham NG7 2RD, UK;
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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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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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Shah P, Holmes K, Chibane F, Wang P, Chagas P, Salles E, Jones M, Palines P, Masoumy M, Baban B, Yu J. Cutaneous Wound Healing and the Effects of Cannabidiol. Int J Mol Sci 2024; 25:7137. [PMID: 39000244 PMCID: PMC11241632 DOI: 10.3390/ijms25137137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/14/2024] [Accepted: 06/20/2024] [Indexed: 07/16/2024] Open
Abstract
Cutaneous wounds, both acute and chronic, begin with loss of the integrity, and thus barrier function, of the skin. Surgery and trauma produce acute wounds. There are 22 million surgical procedures per year in the United States alone, based on data from the American College of Surgeons, resulting in a prevalence of 6.67%. Acute traumatic wounds requiring repair total 8 million per year, 2.42% or 24.2 per 1000. The cost of wound care is increasing; it approached USD 100 billion for just Medicare in 2018. This burden for wound care will continue to rise with population aging, the increase in metabolic syndrome, and more elective surgeries. To heal a wound, an orchestrated, evolutionarily conserved, and complex series of events involving cellular and molecular agents at the local and systemic levels are necessary. The principal factors of this important function include elements from the neurological, cardiovascular, immune, nutritional, and endocrine systems. The objectives of this review are to provide clinicians engaged in wound care and basic science researchers interested in wound healing with an updated synopsis from recent publications. We also present data from our primary investigations, testing the hypothesis that cannabidiol can alter cutaneous wound healing and documenting their effects in wild type (C57/BL6) and db/db mice (Type 2 Diabetes Mellitus, T2DM). The focus is on the potential roles of the endocannabinoid system, cannabidiol, and the important immune-regulatory wound cytokine IL-33, a member of the IL-1 family, and connective tissue growth factor, CTGF, due to their roles in both normal and abnormal wound healing. We found an initial delay in the rate of wound closure in B6 mice with CBD, but this difference disappeared with time. CBD decreased IL-33 + cells in B6 by 70% while nearly increasing CTGF + cells in db/db mice by two folds from 18.6% to 38.8% (p < 0.05) using a dorsal wound model. We review the current literature on normal and abnormal wound healing, and document effects of CBD in B6 and db/db dorsal cutaneous wounds. CBD may have some beneficial effects in diabetic wounds. We applied 6-mm circular punch to create standard size full-thickness dorsal wounds in B6 and db/db mice. The experimental group received CBD while the control group got only vehicle. The outcome measures were rate of wound closure, wound cells expressing IL-33 and CTGF, and ILC profiles. In B6, the initial rate of wound closure was slower but there was no delay in the time to final closure, and cells expressing IL-33 was significantly reduced. CTGF + cells were higher in db/bd wounds treated with CBD. These data support the potential use of CBD to improve diabetic cutaneous wound healing.
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Affiliation(s)
- Pearl Shah
- Department of Surgery, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; (P.S.); (K.H.); (F.C.); (M.J.)
| | - Kathryne Holmes
- Department of Surgery, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; (P.S.); (K.H.); (F.C.); (M.J.)
| | - Fairouz Chibane
- Department of Surgery, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; (P.S.); (K.H.); (F.C.); (M.J.)
| | - Phillip Wang
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA 30912, USA; (P.W.); (P.C.); (E.S.)
| | - Pablo Chagas
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA 30912, USA; (P.W.); (P.C.); (E.S.)
| | - Evila Salles
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA 30912, USA; (P.W.); (P.C.); (E.S.)
| | - Melanie Jones
- Department of Surgery, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; (P.S.); (K.H.); (F.C.); (M.J.)
| | - Patrick Palines
- School of Medicine, Louisiana State University Health Sciences, New Orleans, LA 70112, USA; (P.P.); (M.M.)
| | - Mohamad Masoumy
- School of Medicine, Louisiana State University Health Sciences, New Orleans, LA 70112, USA; (P.P.); (M.M.)
| | - Babak Baban
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA 30912, USA; (P.W.); (P.C.); (E.S.)
| | - Jack Yu
- Department of Surgery, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; (P.S.); (K.H.); (F.C.); (M.J.)
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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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Almansour S, Dunster JL, Crofts JJ, Nelson MR. A systematic evaluation of the influence of macrophage phenotype descriptions on inflammatory dynamics. MATHEMATICAL MEDICINE AND BIOLOGY : A JOURNAL OF THE IMA 2024; 41:81-109. [PMID: 38604176 PMCID: PMC11258393 DOI: 10.1093/imammb/dqae004] [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: 10/20/2023] [Revised: 01/18/2024] [Accepted: 03/28/2024] [Indexed: 04/13/2024]
Abstract
Macrophages play a wide range of roles in resolving the inflammatory damage that underlies many medical conditions and have the ability to adopt different phenotypes in response to different environmental stimuli. Categorising macrophage phenotypes exactly is a difficult task, and there is disparity in the literature around the optimal nomenclature to describe these phenotypes; however, what is clear is that macrophages can exhibit both pro- and anti-inflammatory behaviours dependent upon their phenotype, rendering mathematical models of the inflammatory response potentially sensitive to their description of the macrophage populations that they incorporate. Many previous models of inflammation include a single macrophage population with both pro- and anti-inflammatory functions. Here, we build upon these existing models to include explicit descriptions of distinct macrophage phenotypes and examine the extent to which this influences the inflammatory dynamics that the models emit. We analyse our models via numerical simulation in MATLAB and dynamical systems analysis in XPPAUT, and show that models that account for distinct macrophage phenotypes separately can offer more realistic steady state solutions than precursor models do (better capturing the anti-inflammatory activity of tissue resident macrophages), as well as oscillatory dynamics not previously observed. Finally, we reflect on the conclusions of our analysis in the context of the ongoing hunt for potential new therapies for inflammatory conditions, highlighting manipulation of macrophage polarisation states as a potential therapeutic target.
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Affiliation(s)
- Suliman Almansour
- School of Science & Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK
| | - Joanne L Dunster
- Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, RG6 6AS, UK
| | - Jonathan J Crofts
- School of Science & Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK
| | - Martin R Nelson
- School of Science & Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK
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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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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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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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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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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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Xing J, Wang K, Xu YC, Pei ZJ, Yu QX, Liu XY, Dong YL, Li SF, Chen Y, Zhao YJ, Yao F, Ding J, Hu W, Zhou RP. Efferocytosis: Unveiling its potential in autoimmune disease and treatment strategies. Autoimmun Rev 2024; 23:103578. [PMID: 39004157 DOI: 10.1016/j.autrev.2024.103578] [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: 01/26/2024] [Revised: 07/06/2024] [Accepted: 07/07/2024] [Indexed: 07/16/2024]
Abstract
Efferocytosis is a crucial process whereby phagocytes engulf and eliminate apoptotic cells (ACs). This intricate process can be categorized into four steps: (1) ACs release "find me" signals to attract phagocytes, (2) phagocytosis is directed by "eat me" signals emitted by ACs, (3) phagocytes engulf and internalize ACs, and (4) degradation of ACs occurs. Maintaining immune homeostasis heavily relies on the efficient clearance of ACs, which eliminates self-antigens and facilitates the generation of anti-inflammatory and immunosuppressive signals that maintain immune tolerance. However, any disruptions occurring at any of the efferocytosis steps during apoptosis can lead to a diminished efficacy in removing apoptotic cells. Factors contributing to this inefficiency encompass dysregulation in the release and recognition of "find me" or "eat me" signals, defects in phagocyte surface receptors, bridging molecules, and other signaling pathways. The inadequate clearance of ACs can result in their rupture and subsequent release of self-antigens, thereby promoting immune responses and precipitating the onset of autoimmune diseases such as systemic lupus erythematosus, rheumatoid arthritis, type 1 diabetes, and multiple sclerosis. A comprehensive understanding of the efferocytosis process and its implications can provide valuable insights for developing novel therapeutic strategies that target this process to prevent or treat autoimmune diseases.
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Affiliation(s)
- Jing Xing
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; School of pharmacy, Anhui Medical University, Hefei 230032, China
| | - Ke Wang
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
| | - Yu-Cai Xu
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; School of pharmacy, Anhui Medical University, Hefei 230032, China
| | - Ze-Jun Pei
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; School of pharmacy, Anhui Medical University, Hefei 230032, China
| | - Qiu-Xia Yu
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; School of pharmacy, Anhui Medical University, Hefei 230032, China
| | - Xing-Yu Liu
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; School of pharmacy, Anhui Medical University, Hefei 230032, China
| | - Ya-Lu Dong
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; School of pharmacy, Anhui Medical University, Hefei 230032, China
| | - Shu-Fang Li
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
| | - Yong Chen
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
| | - Ying-Jie Zhao
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
| | - Feng Yao
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
| | - Jie Ding
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
| | - Wei Hu
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; The Key Laboratory of Anti-inflammatory and Immune Medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China.
| | - Ren-Peng Zhou
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; The Key Laboratory of Anti-inflammatory and Immune Medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China.
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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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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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45
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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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46
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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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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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48
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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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49
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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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50
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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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