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Ju R, Li Y, Sui D, Xu FJ. Polyaminoglycoside nanosystem expressing antimicrobial peptides for multistage chronic wound management. J Control Release 2025; 382:113657. [PMID: 40122239 DOI: 10.1016/j.jconrel.2025.113657] [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: 11/24/2024] [Revised: 03/19/2025] [Accepted: 03/20/2025] [Indexed: 03/25/2025]
Abstract
Chronic wounds are difficult to heal due to pathogenic microbial colonization and dysregulation of healing cascades, necessitating novel therapeutic strategies. This study developed a multifunctional nanosystem by integrating the antimicrobial peptide LL37 with cationic polyaminoglycoside (SS-HPT), constructing a self-sustaining "AMP factory" to achieve multi-stage modulation of the wound healing. Validation through cell-level experiments and in vivo dual models (mechanical injury and bacterial infection) in immunocompromised rats demonstrated the system's unique dual intracellular-extracellular pathogen-killing capability, significantly accelerating the wound healing process. Transcriptomic analysis revealed that its mechanism involves the dual effects of suppressing pro-inflammatory factor expression and activating tissue repair pathways. Histological evidence confirmed that the system promotes angiogenesis, enhances re-epithelialization rates, and guides orderly collagen fiber deposition. This nanosystem, combining efficient AMP delivery and integrated therapeutic strategies, achieves three-dimensional synergy in microbial clearance, immune microenvironment regulation, and tissue matrix remodeling, providing theoretical and technical foundations for a paradigm shift in chronic wound treatment.
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Affiliation(s)
- Rui Ju
- State Key Laboratory of Chemical Resource Engineering, Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology, Ministry of Education) and Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yang Li
- State Key Laboratory of Chemical Resource Engineering, Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology, Ministry of Education) and Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dandan Sui
- State Key Laboratory of Chemical Resource Engineering, Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology, Ministry of Education) and Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Fu-Jian Xu
- State Key Laboratory of Chemical Resource Engineering, Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology, Ministry of Education) and Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
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Wang S, Liu Z, Chen C, Zhang S, Hu R, Cao Y, Xu J, Chen J, Yu L. Flexible Amorphous Silicon Radial Junction Patches Promote Skin Regeneration by Offering Wireless Photoelectric Neuromodulation. ACS NANO 2025; 19:18996-19008. [PMID: 40372000 DOI: 10.1021/acsnano.4c16337] [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: 05/16/2025]
Abstract
Photoelectric stimulation offers a promising method for creating noninvasive and durable interfaces with biological tissues, particularly in treating nerve injuries. However, developing flexible and high-performance photoelectric stimulators remains a challenge. In this study, we present an accessible and cost-effective strategy for fabricating an ultraflexible and biocompatible photoelectric patch designed for wireless, light-induced electrical stimulation to promote nerve repair in skin wounds. Using low-temperature chemical vapor deposition, we created flexible photoelectric films based on three-dimensional (3D) amorphous silicon radial p-i-n junction (RJ) nanowires, which exhibit a high open-circuit voltage of 0.79 V and a short-circuit current of 10.5 mA/cm2 under standard AM 1.5 G illumination conditions. The device exhibits good electrochemical performance in solution, featuring high interfacial capacitance and efficient photocurrent generation (∼0.64 mA/cm2), which ensures a stable, capacitive charge injection crucial for effective bioelectrical stimulation. Importantly, the free-standing RJ films can be reliably transferred onto soft poly(dimethylsiloxane) substrates to produce flexible photoelectric patches that maintain intimate contact with curved tissue surfaces. The RJ patches show high biocompatibility and effectively enhance neurite outgrowth and wound healing under safe visible light, promoting both vascular regeneration and neural restoration. This flexible patch holds potential in wireless electrical stimulation, providing a robust and noninvasive solution for comprehensive wound repair and functional tissue regeneration.
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Affiliation(s)
- Shuyi Wang
- School of Electronic Science and Engineering/National Laboratory of Solid-State Microstructures, Nanjing University, 210023 Nanjing, China
| | - Zongguang Liu
- College of Physics Science and Technology/Microelectronics Industry Research Institute, Yangzhou University, 225009 Yangzhou, China
| | - Cheng Chen
- College of Physics Science and Technology/Microelectronics Industry Research Institute, Yangzhou University, 225009 Yangzhou, China
| | - Shaobo Zhang
- College of Physics Science and Technology/Microelectronics Industry Research Institute, Yangzhou University, 225009 Yangzhou, China
| | - Ruijin Hu
- College of Physics Science and Technology/Microelectronics Industry Research Institute, Yangzhou University, 225009 Yangzhou, China
| | - Yunqing Cao
- College of Physics Science and Technology/Microelectronics Industry Research Institute, Yangzhou University, 225009 Yangzhou, China
| | - Jun Xu
- School of Electronic Science and Engineering/National Laboratory of Solid-State Microstructures, Nanjing University, 210023 Nanjing, China
- School of Microelectronics and School of Integrated Circuit, Nantong University, 226019 Nantong, China
| | - Jianmei Chen
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Institute of Translational Medicine, School of Medicine, Yangzhou University, 225009 Yangzhou, China
| | - Linwei Yu
- School of Electronic Science and Engineering/National Laboratory of Solid-State Microstructures, Nanjing University, 210023 Nanjing, China
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Yang Y, Chen Q, Wang Q, Zhang S, Liu J, Yang L, Ma W, Li W, Tan P, Yang G. Gelatin-based adaptive injectable nanocomposite hydrogel for closure of irregular wounds and immunoregulation in diabetic wound healing. Int J Biol Macromol 2025; 315:144313. [PMID: 40383345 DOI: 10.1016/j.ijbiomac.2025.144313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2025] [Revised: 05/06/2025] [Accepted: 05/15/2025] [Indexed: 05/20/2025]
Abstract
Chronic wounds are a major challenge in diabetic patients, exacerbated by disorders of blood perfusion and angiogenesis, bacterial infection, oxidative stress, and inflammation and immune imbalance. Bioactive hydrogels with multifunctional immunomodulatory properties offer promising solutions for diabetic wound management. However, many hydrogels lack adaptability and rely on costly cytokines, cell therapies, or drugs with side effects. This study introduces a novel gelatin-based injectable nanocomposite hydrogel (GelDE-OCS@MOF@Pl) for irregular wound closure and diabetic ulcer healing. This naturally derived macromolecular hydrogel exhibits exceptional biocompatibility and in situ molding capabilities, enabling effective closure and repair of irregular wounds. The GelDE-OCS@MOF@Pl hydrogel serves dual therapeutic functions by establishing a protective physical barrier while intelligently regulating polyphyllin (Pl) release in response to pH variations, thereby simultaneously eliminating bacterial pathogens, scavenging reactive oxygen species, and suppressing excessive inflammation for providing a suitable microenvironment for angiogenesis and epithelialization. This nanocomposite hydrogel effectively promotes diabetic wound healing through coordinated modulation of the wound immune microenvironment, demonstrating multifunctional therapeutic effects including antibacterial activity, oxidative stress alleviation, and anti-inflammatory action, thereby presenting a promising treatment strategy for chronic diabetic wounds.
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Affiliation(s)
- Yang Yang
- Shenzhen Bao'an Authentic TCM Therapy Hospital, Shenzhen, Guangdong 518100, PR China
| | - Qinhua Chen
- Shenzhen Bao'an Authentic TCM Therapy Hospital, Shenzhen, Guangdong 518100, PR China
| | - Qizhang Wang
- Shenzhen Clinical College of Integrated Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Shenzhen, Guangdong 518104, PR China
| | - Shuya Zhang
- Shenzhen Bao'an Chinese Medicine Hospital, Guangzhou University of Chinese Medicine, Shenzhen, Guangdong 518100, PR China
| | - Jingjian Liu
- Shenzhen Bao'an Authentic TCM Therapy Hospital, Shenzhen, Guangdong 518100, PR China
| | - Lindan Yang
- Shenzhen Pingle Orthopedic Hospital (Shenzhen Pingshan Traditional Chinese Medicine Hospital), Shenzhen, Guangdong 518118, PR China
| | - Wenjing Ma
- Green Development Research Center, China Academy of Industrial Internet, Beijing 100015, PR China
| | - Wenqiang Li
- Engineering Technology Research Center for Sports Assistive Devices of Guangdong, Guangzhou Sport University, Guangzhou 510500, Guangdong, PR China
| | - Pingjuan Tan
- Shenzhen Pingle Orthopedic Hospital (Shenzhen Pingshan Traditional Chinese Medicine Hospital), Shenzhen, Guangdong 518118, PR China.
| | - Guangyi Yang
- Shenzhen Clinical College of Integrated Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Shenzhen, Guangdong 518104, PR China.
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4
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Zhang X, Zhao J, Ge R, Zhang X, Sun H, Guo Y, Wang Y, Chen L, Li S, Yang J, Sun D. Arg-Gly-Asp engineered mesenchymal stem cells as targeted nanotherapeutics against kidney fibrosis by modulating m6A. Acta Biomater 2025; 198:85-101. [PMID: 40158765 DOI: 10.1016/j.actbio.2025.03.042] [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: 11/21/2024] [Revised: 02/17/2025] [Accepted: 03/25/2025] [Indexed: 04/02/2025]
Abstract
Background The recent surge in research on extracellular vesicles has generated considerable interest in their clinical applications. Extracellular vesicles derived from mesenchymal stem cells (MSC-EV) have emerged as a promising cell-free therapy for chronic kidney disease (CKD), offering an alternative to traditional Mesenchymal stem/stromal cells (MSCs) in extracellular vesicle-based nanotherapeutics. However, challenges such as in vivo off-target effects and limited bioavailability have impeded the wider adoption of MSC-EV in clinical settings. Methods Arginyl-glycyl-aspartic acid peptide-modified MSC-EV (RGD-MSC-EV) were developed using a donor cell-assisted membrane modification strategy. The targeting capability and therapeutic efficacy of RGD-MSC-EV were thoroughly evaluated both in vitro and in vivo. Additionally, the mechanisms of RNA N6-methyladenosine (m6A) methylation-mediated angiogenesis were extensively investigated to elucidate how RGD-MSC-EV mitigates renal fibrosis. Results RGD-MSC-EV demonstrated exceptional targeted delivery efficiency, exhibiting optimal biodistribution and retention within the target tissue. This breakthrough positions them as significantly enhanced anti-fibrotic therapeutics. Notably, RGD-MSC-EV sustains the viability of renal peritubular capillary (PTCs) endothelial cells by transporting microRNA-126-5p (miR-126-5p) and modulating alkB homolog 5 (ALKBH5)-mediated m6A modification of SIRT1(Sirtuin 1), a crucial regulator in angiogenesis. By revitalizing endothelial cells and promoting microcirculation, this approach restored oxygen metabolism homeostasis, ultimately delaying fibrogenesis associated with CKD. Conclusions RGD-MSC-EV offers a feasible and effective strategy to alleviate renal interstitial fibrosis by restoring m6A and mitigating the loss of renal PTCs. STATEMENT OF SIGNIFICANCE: Chronic kidney disease (CKD) often leads to renal fibrosis, which worsens disease progression. This study introduces a novel strategy using engineered extracellular vesicles (EVs) derived from mesenchymal stem cells (MSC-EV). By modifying these EVs with RGD peptides, we significantly enhance their targeting ability to hypoxic kidney tissues. The research reveals how these EVs deliver microRNA (miR-126-5p) to restore key molecular mechanisms, stabilizing SIRT1 expression through m6A RNA modifications. This approach promotes blood vessel health and delays fibrosis. Compared to current treatments, RGD-MSC-EV offers a safe, effective, and cell-free therapeutic alternative. These findings advance the understanding of EV-based therapies and their clinical potential, bridging basic research and real-world CKD treatment applications.
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Affiliation(s)
- Xin Zhang
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Clinical Research Center For Kidney Disease, Xuzhou Medical University, Xuzhou, China; Department of Internal Medicine and Diagnostics, Xuzhou Medical University, Xuzhou, China
| | - Jiaqi Zhao
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Clinical Research Center For Kidney Disease, Xuzhou Medical University, Xuzhou, China; Department of Internal Medicine and Diagnostics, Xuzhou Medical University, Xuzhou, China
| | - Rui Ge
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Clinical Research Center For Kidney Disease, Xuzhou Medical University, Xuzhou, China; Department of Internal Medicine and Diagnostics, Xuzhou Medical University, Xuzhou, China
| | - Xiangyu Zhang
- Department of Nephrology, Ningbo City first Hospital, Ningbo, China
| | - Haihan Sun
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Clinical Research Center For Kidney Disease, Xuzhou Medical University, Xuzhou, China
| | - Yuhan Guo
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Clinical Research Center For Kidney Disease, Xuzhou Medical University, Xuzhou, China; Department of Internal Medicine and Diagnostics, Xuzhou Medical University, Xuzhou, China
| | - Yanping Wang
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Clinical Research Center For Kidney Disease, Xuzhou Medical University, Xuzhou, China; Department of Internal Medicine and Diagnostics, Xuzhou Medical University, Xuzhou, China
| | - Lu Chen
- Department of Rheumatology, Ningbo Medical Treatment Center Li Huili Hospital, Ningbo, China
| | - Shulin Li
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Clinical Research Center For Kidney Disease, Xuzhou Medical University, Xuzhou, China; Department of Internal Medicine and Diagnostics, Xuzhou Medical University, Xuzhou, China
| | - Jing Yang
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Clinical Research Center For Kidney Disease, Xuzhou Medical University, Xuzhou, China
| | - Dong Sun
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Clinical Research Center For Kidney Disease, Xuzhou Medical University, Xuzhou, China; Department of Internal Medicine and Diagnostics, Xuzhou Medical University, Xuzhou, China.
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5
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Avila-Martinez N, Pfirrmann M, Gomes MLNP, Krymchenko R, Versteeg EMM, Vlig M, Verdoes M, van Kuppevelt TH, Boekema BKHL, Daamen WF. Effect of Hyaluronan in Collagen Biomaterials on Human Macrophages and Fibroblasts In Vitro. J Funct Biomater 2025; 16:167. [PMID: 40422831 DOI: 10.3390/jfb16050167] [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: 03/25/2025] [Revised: 04/25/2025] [Accepted: 05/01/2025] [Indexed: 05/28/2025] Open
Abstract
In adults, scars are formed after deep skin wound injuries like burns. However, the fetal microenvironment allows for scarless skin regeneration. One component that is abundantly present in the fetal extracellular matrix is hyaluronan (HA). To study whether biomaterials with HA improve wound healing, type I collagen scaffolds with and without HA were prepared and characterized. Their immune effect was tested using macrophages and their phenotypes were analyzed through cell surface markers and cytokine expression after 48 h. Since fibroblasts are the main cellular component in the dermis, adult, fetal and eschar-derived cells were cultured on scaffolds for 14 days and evaluated using histology, gene and protein expression analyses. Biochemical assays demonstrated that HA was successfully incorporated and evenly distributed throughout the scaffolds. Macrophages (M0) cultured on Col I+HA scaffolds exhibited a profile resembling the M2c-like phenotype (CD206high, CD163high and IL10high). HA did not significantly affect gene expression in adult and fetal fibroblasts, but significantly reduced scarring-related genes, such as transforming growth factor beta 1 (TGFB1) and type X collagen alpha 1 chain (COL10A1), in myofibroblast-like eschar cells. These findings highlight the potential of incorporating HA into collagen-based skin substitutes to improve the wound healing response.
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Affiliation(s)
- Nancy Avila-Martinez
- Department of Medical BioSciences, Research Institute for Medical Innovation, Radboud university medical center, 6525 GA Nijmegen, The Netherlands
| | - Maren Pfirrmann
- Department of Medical BioSciences, Research Institute for Medical Innovation, Radboud university medical center, 6525 GA Nijmegen, The Netherlands
| | - Madalena L N P Gomes
- Department of Pathology, Amsterdam University Medical Center (AUMC), Location AMC, 1081 HV Amsterdam, The Netherlands
- Tissue Function and Regeneration, Amsterdam Movement Sciences Research Institute, 1081 HV Amsterdam, The Netherlands
- Department of Plastic, Reconstructive and Hand Surgery, Amsterdam University Medical Center (AUMC), Location AMC, 1081 HV Amsterdam, The Netherlands
- Alliance of Dutch Burn Care, Burn Research Lab, 1941 AJ Beverwijk, The Netherlands
| | - Roman Krymchenko
- Department of Medical BioSciences, Research Institute for Medical Innovation, Radboud university medical center, 6525 GA Nijmegen, The Netherlands
| | - Elly M M Versteeg
- Department of Medical BioSciences, Research Institute for Medical Innovation, Radboud university medical center, 6525 GA Nijmegen, The Netherlands
| | - Marcel Vlig
- Alliance of Dutch Burn Care, Burn Research Lab, 1941 AJ Beverwijk, The Netherlands
| | - Martijn Verdoes
- Department of Medical BioSciences, Research Institute for Medical Innovation, Radboud university medical center, 6525 GA Nijmegen, The Netherlands
- Department of Immunology, Leiden University Medical Center (LUMC), 2333 ZA Leiden, The Netherlands
| | - Toin H van Kuppevelt
- Department of Medical BioSciences, Research Institute for Medical Innovation, Radboud university medical center, 6525 GA Nijmegen, The Netherlands
| | - Bouke K H L Boekema
- Tissue Function and Regeneration, Amsterdam Movement Sciences Research Institute, 1081 HV Amsterdam, The Netherlands
- Department of Plastic, Reconstructive and Hand Surgery, Amsterdam University Medical Center (AUMC), Location AMC, 1081 HV Amsterdam, The Netherlands
- Alliance of Dutch Burn Care, Burn Research Lab, 1941 AJ Beverwijk, The Netherlands
| | - Willeke F Daamen
- Department of Medical BioSciences, Research Institute for Medical Innovation, Radboud university medical center, 6525 GA Nijmegen, The Netherlands
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Li G, He L, Xu J, Gong Y, Zeng Q, Chen X, Jiao W, Liu Y, Liu J, Xu R, Liang X, Chen W. Self-Powered Algae-Integrated Wearable System for Oxygen Supplementation in Hypoxic Disease Treatment. ACS NANO 2025; 19:16940-16956. [PMID: 40279553 DOI: 10.1021/acsnano.5c02581] [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: 04/27/2025]
Abstract
Hypoxia serves as a critical determinant in the advancement of various intractable pathological conditions including oncological disorders and hypovascular wounds, which may profoundly attenuate the efficacy of pharmacological interventions and substantially inhibit the physiological recovery processes. Consequently, in an effort to mitigate the inherent constraints of conventional methodologies (e.g., exogenous oxygen delivery systems), a self-powered triboelectric nanogenerator (TENG)-based algae-integrated pliable and enveloped device (TAPED) operates as a wearable system to sustain oxygen generation. The TAPED system harnesses biomechanical energy generated through natural bodily movements to energize an integrated luminescent source, enabling controlled photosynthesis for sustained, on-demand oxygen production. The incorporation of TENG technology renders TAPED self-sufficient, eliminating the necessity for external recharging, reducing device mass, and improving convenience for continuous oxygen delivery. Additionally, its body-attachable design circumvents risks associated with direct algal implantation, such as immunogenic reactions and infections. Specifically, experimental application of TAPED has exhibited significant therapeutic efficacy in diverse pathological conditions, including diabetic chronic infected wounds, breast carcinoma tumors, and lactic acid accumulation consequent to strenuous exercise-induced fatigue. Collectively, the TAPED represents an advanced therapeutic approach, which holds substantial potential for translational application within clinical contexts, particularly for enhancing patient prognosis in hypoxic diseases such as oncology and wound management.
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Affiliation(s)
- Guanyue Li
- Department of Pharmacology, School of Basic Medicine, State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Tongji-Rongcheng Center for Biomedicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Linxi He
- Department of Pharmacology, School of Basic Medicine, State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Tongji-Rongcheng Center for Biomedicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jiarong Xu
- Department of Pharmacology, School of Basic Medicine, State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Tongji-Rongcheng Center for Biomedicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yusheng Gong
- Department of Pharmacology, School of Basic Medicine, State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Tongji-Rongcheng Center for Biomedicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Qi Zeng
- Department of Pharmacology, School of Basic Medicine, State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Tongji-Rongcheng Center for Biomedicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiuli Chen
- Department of Pharmacology, School of Basic Medicine, State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Tongji-Rongcheng Center for Biomedicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Wenhao Jiao
- Department of Pharmacology, School of Basic Medicine, State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Tongji-Rongcheng Center for Biomedicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yuan Liu
- Department of Pharmacology, School of Basic Medicine, State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Tongji-Rongcheng Center for Biomedicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jiajing Liu
- Department of Pharmacology, School of Basic Medicine, State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Tongji-Rongcheng Center for Biomedicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Rengui Xu
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xinting Liang
- Department of Pharmacology, School of Basic Medicine, State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Tongji-Rongcheng Center for Biomedicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Wei Chen
- Department of Pharmacology, School of Basic Medicine, State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Tongji-Rongcheng Center for Biomedicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430030, China
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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Chandrasegaran S, Sluka JP, Shanley D. Modelling the spatiotemporal dynamics of senescent cells in wound healing, chronic wounds, and fibrosis. PLoS Comput Biol 2025; 21:e1012298. [PMID: 40233102 PMCID: PMC12052216 DOI: 10.1371/journal.pcbi.1012298] [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: 07/05/2024] [Revised: 05/05/2025] [Accepted: 03/25/2025] [Indexed: 04/17/2025] Open
Abstract
Cellular senescence is known to drive age-related pathology through the senescence-associated secretory phenotype (SASP). However, it also plays important physiological roles such as cancer suppression, embryogenesis and wound healing. Wound healing is a tightly regulated process which when disrupted results in conditions such as fibrosis and chronic wounds. Senescent cells appear during the proliferation phase of the healing process where the SASP is involved in maintaining tissue homeostasis after damage. Interestingly, SASP composition and functionality was recently found to be temporally regulated, with distinct SASP profiles involved: a fibrogenic, followed by a fibrolytic SASP, which could have important implications for the role of senescent cells in wound healing. Given the number of factors at play a full understanding requires addressing the multiple levels of complexity, pertaining to the various cell behaviours, individually followed by investigating the interactions and influence each of these elements have on each other and the system as a whole. Here, a systems biology approach was adopted whereby a multi-scale model of wound healing that includes the dynamics of senescent cell behaviour and corresponding SASP composition within the wound microenvironment was developed. The model was built using the software CompuCell3D, which is based on a Cellular Potts modelling framework. We used an existing body of data on healthy wound healing to calibrate the model and validation was done on known disease conditions. The model clearly shows how differences in the spatiotemporal dynamics of different senescent cell phenotypes lead to several distinct repair outcomes. These differences in senescent cell dynamics can be attributed to variable SASP composition, duration of senescence and temporal induction of senescence relative to the healing stage. The range of outcomes demonstrated strongly highlight the dynamic and heterogenous role of senescent cells in wound healing, fibrosis and chronic wounds, and their fine-tuned control. Further specific data to increase model confidence could be used to explore senolytic treatments in wound disorders.
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Affiliation(s)
| | - James P. Sluka
- Department of Intelligent Systems Engineering and Biocomplexity Institute, Indiana University Bloomington, Bloomington, Indiana, United States of America
| | - Daryl Shanley
- Biosciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
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8
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Jia H, Chen X, Zhang L, Chen M. Cancer associated fibroblasts in cancer development and therapy. J Hematol Oncol 2025; 18:36. [PMID: 40156055 PMCID: PMC11954198 DOI: 10.1186/s13045-025-01688-0] [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: 01/22/2025] [Accepted: 03/12/2025] [Indexed: 04/01/2025] Open
Abstract
Cancer-associated fibroblasts (CAFs) are key players in cancer development and therapy, and they exhibit multifaceted roles in the tumor microenvironment (TME). From their diverse cellular origins, CAFs undergo phenotypic and functional transformation upon interacting with tumor cells and their presence can adversely influence treatment outcomes and the severity of the cancer. Emerging evidence from single-cell RNA sequencing (scRNA-seq) studies have highlighted the heterogeneity and plasticity of CAFs, with subtypes identifiable through distinct gene expression profiles and functional properties. CAFs influence cancer development through multiple mechanisms, including regulation of extracellular matrix (ECM) remodeling, direct promotion of tumor growth through provision of metabolic support, promoting epithelial-mesenchymal transition (EMT) to enhance cancer invasiveness and growth, as well as stimulating cancer stem cell properties within the tumor. Moreover, CAFs can induce an immunosuppressive TME and contribute to therapeutic resistance. In this review, we summarize the fundamental knowledge and recent advances regarding CAFs, focusing on their sophisticated roles in cancer development and potential as therapeutic targets. We discuss various strategies to target CAFs, including ECM modulation, direct elimination, interruption of CAF-TME crosstalk, and CAF normalization, as approaches to developing more effective treatments. An improved understanding of the complex interplay between CAFs and TME is crucial for developing new and effective targeted therapies for cancer.
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Affiliation(s)
- Hongyuan Jia
- Department of Radiation Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Radiation Oncology Key Laboratory of Sichuan Province, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu, China
| | - Xingmin Chen
- Department of Radiation Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Radiation Oncology Key Laboratory of Sichuan Province, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu, China
| | - Linling Zhang
- Department of Respiratory and Critical Care, Chengdu Third People's Hospital, Chengdu, China
| | - Meihua Chen
- Department of Radiation Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Radiation Oncology Key Laboratory of Sichuan Province, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu, China.
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Moody A, Bhattarai N. Enhanced Cell Proliferation, Migration, and Fibroblast Differentiation with Electrospun PCL-Zinc Scaffolds Coated with Fibroblast-Derived ECM. ACS OMEGA 2025; 10:4427-4441. [PMID: 39959067 PMCID: PMC11822518 DOI: 10.1021/acsomega.4c07504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2024] [Revised: 12/31/2024] [Accepted: 01/14/2025] [Indexed: 02/18/2025]
Abstract
Despite tremendous improvement in the development of tissue-regenerating materials, a promising solution that provides an optimal environment remains to be accomplished. Here, we report a composite nanofiber biomaterial scaffold as a promising solution that closely mimics the extracellular matrix (ECM) to improve cell viability, proliferation, and migration. Initially, nanofiber composites of polycaprolactone (PCL) and zinc (Zn) metal were fabricated by using electrospinning. The resulting PCL-Zn (PZ) nanofibers effectively guided the growth of NIH3T3 fibroblasts for 7 days, forming a fibroblast cell sheet. The PZ fibers were decellularized to remove autologous and allogenic cellular antigens while leaving an intact ECM with structural and functional components. The resulting nanofiber PCL-Zn-ECM (PZE) showcased a natural ECM bonded to the surface, providing a bioactive element to the interconnected fibers. The reseeding of NIH3T3 fibroblasts demonstrated the scaffold's excellent capacity to direct and support cell proliferation. Furthermore, in vitro cytotoxicity analysis and morphological staining confer the scaffold's biocompatibility. The PZE scaffold presents a promising development in which these scaffolds can be further used for various regenerative medicine applications including wound healing.
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Affiliation(s)
- Alexis Moody
- Department
of Applied Science and Technology, North
Carolina A&T State University, Greensboro, North Carolina 27411, United States
| | - Narayan Bhattarai
- Department
of Chemical, Biological, and Bioengineering, North Carolina A&T State University, Greensboro, North Carolina 27411, United States
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10
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Allen RS, Seifert AW. Spiny mice (Acomys) have evolved cellular features to support regenerative healing. Ann N Y Acad Sci 2025; 1544:5-26. [PMID: 39805008 PMCID: PMC11830558 DOI: 10.1111/nyas.15281] [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] [Indexed: 01/16/2025]
Abstract
Spiny mice (Acomys spp.) are warm-blooded (homeothermic) vertebrates whose ability to restore missing tissue through regenerative healing has coincided with the evolution of unique cellular and physiological adaptations across different tissue types. This review seeks to explore how these bizarre rodents deploy unique or altered injury response mechanisms to either enhance tissue repair or fully regenerate excised tissue compared to closely related, scar-forming mammals. First, we examine overall trends in healing Acomys tissues, including the cellular stress response, the ability to activate and maintain cell cycle progression, and the expression of certain features in reproductive adults that are normally associated with embryos. Second, we focus on specific cell types that exhibit precisely regulated proliferation to restore missing tissue. While Acomys utilize many of the same cell types involved in scar formation, these cells exhibit divergent activation profiles during regenerative healing. Considered together, current lines of evidence support sustained deployment of proregenerative pathways in conjunction with transient activation of fibrotic pathways to facilitate regeneration and improve tissue repair in Acomys.
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Affiliation(s)
- Robyn S. Allen
- Department of Biology, University of Kentucky, Lexington, Kentucky, USA
| | - Ashley W. Seifert
- Department of Biology, University of Kentucky, Lexington, Kentucky, USA
- The Spinal Cord and Brain Injury Research Center (SCoBIRC), University of Kentucky, Lexington, Kentucky, USA
- Department of Veterinary Anatomy and Physiology, University of Nairobi, Nairobi, Kenya
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11
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Song R, Ma J, Yin S, Wu Z, Liu C, Sun R, Cao G, Lu Y, Liu J, Su L, Wang Y. Receptor activity-modifying protein 1 regulates the differentiation of mouse skin fibroblasts by downregulating α-SMA expression via suppression of high mobility group AT-hook 1 to promote skin wound repair. BURNS & TRAUMA 2025; 13:tkae068. [PMID: 39839760 PMCID: PMC11750253 DOI: 10.1093/burnst/tkae068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 05/21/2024] [Accepted: 10/11/2024] [Indexed: 01/23/2025]
Abstract
Background Skin innervation is very important for normal wound healing, and receptor activity-modifying protein 1 (RAMP1) has been reported to modulate calcitonin gene-related peptide (CGRP) receptor function and thus be a potential treatment target. This study aimed to elucidate the intricate regulatory effect of RAMP1 on skin fibroblast function, thereby addressing the existing knowledge gap in this area. Methods Immunohistochemical staining and immunofluorescence (IF) staining were used to measure the dynamic changes in the expression of RAMP1 and α-smooth muscle actin (α-SMA) in skin wound tissue in mice. Mouse skin fibroblasts (MSFs) stably transfected with Tet-on-Flag-RAMP1 overexpression (OE) and Tet-on-Flag control (Ctrl) lentiviruses were constructed for in vitro experiments. High mobility group AT-hook 1 (HMGA1) plasmids and α-SMA plasmids were used to overexpress HMGA1 and α-SMA, respectively. An α-SMA siRNA was used to silence α-SMA. Quantitative real-time polymerase chain reaction (qPCR), western blot and IF staining analyses were used to determine the mRNA and protein levels in the cells in different groups. A scratch wound healing assay was used to evaluate the cell migration ability of different groups. Cleavage under targets and release using nuclease (CUT & RUN) assays and dual-luciferase reporter assays were used to predict and verify the interaction between HMGA1 and the α-SMA promoter. Results RAMP1 and α-SMA protein expression levels in the dermis changed dynamically and were negatively correlated during dorsal skin wound healing in mice. RAMP1 OE in vitro inhibited the differentiation and promoted the migration of MSFs by decreasing α-SMA expression via the suppression of HMGA1, which was shown for the first time to bind to the α-SMA promoter and increase α-SMA transcription. RAMP1 OE also modulated extracellular matrix (ECM) synthesis and remodeling by promoting collagen III and MMP9 expression and decreasing collagen I, MMP2, and tissue inhibitor of metalloproteinases 1 expression. Conclusions Our findings suggest that RAMP1 OE decreases differentiation and promotes migration in MSFs by downregulating α-SMA expression via the suppression of HMGA1 and modulates ECM synthesis and remodeling, revealing a novel mechanism regulating α-SMA transcription, providing new insights into the RAMP1-mediated regulation of fibroblast function, and identifying effective nerve-related targets for skin wound repair.
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Affiliation(s)
- Ru Song
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
| | - Jiaxu Ma
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
| | - Siyuan Yin
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
| | - Zhenjie Wu
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
| | - Chunyan Liu
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
| | - Rui Sun
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
| | - Guoqi Cao
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
| | - Yongpan Lu
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
| | - Jian Liu
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
| | - Linqi Su
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
| | - Yibing Wang
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Lixia District, Jinan, Shandong 250014, P. R. China
- Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, No. 44, Wenhua Xilu, Lixia District, Jinan, Shandong 250012, P. R. China
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12
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Wang J, Wang W, Li K, Wu Y, Yang X, Zhou J, Zhang Z, Jiang Y. A functional hydrogel dressing based on glycyrrhizic acid with low-swelling and moisturizing properties for enhancing infected wound repair. J Mater Chem B 2025; 13:656-667. [PMID: 39618390 DOI: 10.1039/d4tb01572j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2025]
Abstract
Wound healing is a challenging due to the presence of bacterial infection, excessive inflammation and angiogenesis disorders. While traditional therapies struggle, a functional hydrogel can effectively repair wounds. However, the use of hydrogels is limited due to their high swelling and excessive dehydration characteristics. Herein, an interpenetrating polymer network hydrogel (HGP@EGCG) based on hyaluronic acid methacrylate (HAMA), glycyrrhizic acid (GA), polyvinyl alcohol (PVA), epigallocatechin-3-gallate (EGCG), and glycerin/water binary solvent was developed by self-assembly, physical entanglement and chemical crosslinking for infected wound healing. GA forms a primary network through self-assembly induced by Zn2+ and HAMA forms a more robust network structure through free radical polymerization as a rigid backbone, followed by the physical entanglement of PVA, which provides additional crosslinks within the network. The robust network structure conferred the HGP hydrogel with low swelling properties. HGP@EGCG hydrogels could adhere to the wound surface, exhibiting adequate tensile and compressive strength to withstand deformations induced by external forces. Then HGP@EGCG hydrogels with good moisture retention could facilitate the maintenance of wound hydration and prolong usage. Moreover, HGP@EGCG hydrogels could release the drug rapidly in an acidic environment and eliminate bacteria. The designed hydrogels demonstrated multifaceted functionality, including suitable adhesion, low swelling, good moisture retention, and efficient antibacterial properties. Both in vitro and in vivo investigations confirmed that HGP@EGCG hydrogels had good biocompatibility and promoted human umbilical vein endothelial cell migration and tube formation, which markedly expedited wound healing. Consequently, HGP@EGCG hydrogels present a broad spectrum of potential applications in the clinical treatment of infected wounds.
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Affiliation(s)
- Ji Wang
- Department of Rehabilitation, Shenzhen Dapeng New District Nan'ao People's Hospital, Shenzhen, 518000, P. R. China
| | - Wei Wang
- Department of Rehabilitation, Shenzhen Pingle Orthopedic Hospital (Shenzhen Pingshan District Hospital of Traditional Chinese Medicine), Shenzhen, 518000, P. R. China.
| | - Kejun Li
- Department of Rehabilitation, Shenzhen Pingle Orthopedic Hospital (Shenzhen Pingshan District Hospital of Traditional Chinese Medicine), Shenzhen, 518000, P. R. China.
| | - Yanhua Wu
- Department of Rehabilitation, Shenzhen Pingle Orthopedic Hospital (Shenzhen Pingshan District Hospital of Traditional Chinese Medicine), Shenzhen, 518000, P. R. China.
| | - Xiaoting Yang
- Department of Rehabilitation, Shenzhen Pingle Orthopedic Hospital (Shenzhen Pingshan District Hospital of Traditional Chinese Medicine), Shenzhen, 518000, P. R. China.
| | - Jiping Zhou
- Department of Rehabilitation, Shenzhen Dapeng New District Nan'ao People's Hospital, Shenzhen, 518000, P. R. China
| | - Zhijie Zhang
- Rehabilitation Therapy Center, Luoyang Orhtopedic-Traumatological Hospital of Henan Province (Henan Province Orthopedic Hospital), Luoyang, 471000, P. R. China.
| | - Yongjun Jiang
- Department of Rehabilitation, Shenzhen Pingle Orthopedic Hospital (Shenzhen Pingshan District Hospital of Traditional Chinese Medicine), Shenzhen, 518000, P. R. China.
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13
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Kim SE, Noda R, Liu YC, Nakajima Y, Kameoka S, Motooka D, Mizuno S, Takahashi S, Takaya K, Murase T, Ikematsu K, Tratsiakova K, Motoyama T, Nakashima M, Kishi K, Martin P, Seno S, Okuzaki D, Mori R. Novel integrated multiomics analysis reveals a key role for integrin beta-like 1 in wound scarring. EMBO Rep 2025; 26:122-152. [PMID: 39558136 PMCID: PMC11724056 DOI: 10.1038/s44319-024-00322-3] [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: 01/11/2024] [Revised: 09/30/2024] [Accepted: 10/24/2024] [Indexed: 11/20/2024] Open
Abstract
Exacerbation of scarring can originate from a minority fibroblast population that has undergone inflammatory-mediated genetic changes within the wound microenvironment. The fundamental relationship between molecular and spatial organization of the repair process at the single-cell level remains unclear. We have developed a novel, high-resolution spatial multiomics method that integrates spatial transcriptomics with scRNA-Seq; we identified new characteristic features of cell-cell communication and signaling during the repair process. Data from PU.1-/- mice, which lack an inflammatory response, combined with scRNA-Seq and Visium transcriptomics, led to the identification of nine genes potentially involved in inflammation-related scarring, including integrin beta-like 1 (Itgbl1). Transgenic mouse experiments confirmed that Itgbl1-expressing fibroblasts are required for granulation tissue formation and drive fibrogenesis during skin repair. Additionally, we detected a minority population of Acta2high-expressing myofibroblasts with apparent involvement in scarring, in conjunction with Itgbl1 expression. IL1β signaling inhibited Itgbl1 expression in TGFβ1-treated primary fibroblasts from humans and mice. Our novel methodology reveal molecular mechanisms underlying fibroblast-inflammatory cell interactions that initiate wound scarring.
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Affiliation(s)
- Sang-Eun Kim
- Department of Pathology, School of Medicine, Nagasaki University, Nagasaki, 852-8523, Japan
| | - Ryota Noda
- Department of Pathology, School of Medicine, Nagasaki University, Nagasaki, 852-8523, Japan
| | - Yu-Chen Liu
- Laboratory of Human Immunology (Single Cell Genomics), WPI Immunology Research Center, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Yukari Nakajima
- Department of Plastic and Reconstructive Surgery, School of Medicine, Keio University, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shoichiro Kameoka
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Daisuke Motooka
- Laboratory of Human Immunology (Single Cell Genomics), WPI Immunology Research Center, Osaka University, Suita, Osaka, 565-0871, Japan
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Seiya Mizuno
- Laboratory Animal Resource Center, Transborder Medical Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8575, Japan
| | - Satoru Takahashi
- Laboratory Animal Resource Center, Transborder Medical Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8575, Japan
| | - Kento Takaya
- Department of Plastic and Reconstructive Surgery, School of Medicine, Keio University, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takehiko Murase
- Department of Forensic Pathology and Science, School of Medicine, Nagasaki University, Nagasaki, 852-8523, Japan
- Department of Forensic Medicine, Faculty of Medicine, Kagawa University, Kita, Kagawa, 761-0793, Japan
| | - Kazuya Ikematsu
- Department of Forensic Pathology and Science, School of Medicine, Nagasaki University, Nagasaki, 852-8523, Japan
| | - Katsiaryna Tratsiakova
- Department of Tumor and Diagnostic Pathology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, 852-8523, Japan
| | - Takahiro Motoyama
- Department of Tumor and Diagnostic Pathology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, 852-8523, Japan
| | - Masahiro Nakashima
- Department of Tumor and Diagnostic Pathology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, 852-8523, Japan
| | - Kazuo Kishi
- Department of Plastic and Reconstructive Surgery, School of Medicine, Keio University, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Paul Martin
- Department of Biochemistry, Biomedical Sciences, University of Bristol, Bristol, BS8 1TD, UK
| | - Shigeto Seno
- Department of Bioinformatic Engineering, Graduate School of Information Science and Technology, Osaka University, Suita, Osaka, 565-0871, Japan.
| | - Daisuke Okuzaki
- Laboratory of Human Immunology (Single Cell Genomics), WPI Immunology Research Center, Osaka University, Suita, Osaka, 565-0871, Japan.
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, 565-0871, Japan.
| | - Ryoichi Mori
- Department of Pathology, School of Medicine, Nagasaki University, Nagasaki, 852-8523, Japan.
- Department of Tissue Repair and Regenerative Medical Science, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, 852-8523, Japan.
- Leading Medical Research Core Unit, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8523, Japan.
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14
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Dorris ER, Phelan DE, Russell J, Murphy M. Bone morphogenetic protein-3 is a negative regulator of transforming growth factor beta and fibrosis. Biochem Biophys Res Commun 2024; 738:150497. [PMID: 39151293 DOI: 10.1016/j.bbrc.2024.150497] [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: 07/12/2024] [Revised: 07/29/2024] [Accepted: 08/01/2024] [Indexed: 08/19/2024]
Abstract
Fibrosis results in one-third of all deaths globally and is a major healthcare challenge. Fibrosis is scarring caused by the excess deposition of extracellular matrix proteins by fibroblasts. Inhibition of pathways downstream of transforming growth factor β (TGF-β) a pluripotent growth factor, has potent antifibrotic effects in different organs. Here we show that loss of bone morphogenetic protein (BMP-3) is a feature of kidney fibrosis, independent of the initiating injury, suggesting loss of this cytokine is a core fibrotic mechanism. TGF-β decreased BMP3 expression in human fibroblasts is possibly a feed-forward loop that contributes to increased and sustained TGF-β activity. Recombinant human BMP-3 reduced TGF-β induced fibroblast contraction, migration and invasion, pathways that lead to scarring and tissue stiffening. BMP-3 reduced TGF-β stimulated collagen cross-linking, and Ox-LDL receptor 1, a regulator of collagen deposition. BMP-3 inhibited TGF-β stimulated lysyl oxidase activity. Lysyl oxidase mediated collagen cross-linking is a critical process in TGF-β induced fibrosis. We propose that BMP-3 alters fibroblast responses to TGF-β, shifting the balance from fibrosis to repair. Recombinant human BMP-3 shows promise for development as a novel therapeutic for fibrosis.
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Affiliation(s)
- Emma R Dorris
- School of Medicine, University College Dublin, Dublin, Ireland; National Children's Research Centre, Children's Health Ireland (Crumlin), Dublin, Ireland
| | - David E Phelan
- School of Medicine, University College Dublin, Dublin, Ireland; National Children's Research Centre, Children's Health Ireland (Crumlin), Dublin, Ireland
| | - John Russell
- National Children's Research Centre, Children's Health Ireland (Crumlin), Dublin, Ireland; Department of Pediatric Otorhinolaryngology, Children's Health Ireland (Crumlin), Dublin, Ireland
| | - Madeline Murphy
- School of Medicine, University College Dublin, Dublin, Ireland; National Children's Research Centre, Children's Health Ireland (Crumlin), Dublin, Ireland.
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15
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Lovisa S, Vetrano S. TWISTed fibroblasts: New drivers of intestinal fibrosis in Crohn's disease. Heliyon 2024; 10:e40604. [PMID: 39654763 PMCID: PMC11626011 DOI: 10.1016/j.heliyon.2024.e40604] [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: 08/14/2024] [Revised: 11/06/2024] [Accepted: 11/20/2024] [Indexed: 12/12/2024] Open
Abstract
Fibrosis is the pathological consequence of chronic inflammation. In Crohn's disease (CD), fibrostenotic complications occur with 50-70 % frequency as a failure to properly repair the tissue damage. Intestinal stenosis requires surgical intervention and relapses in most patients. Mesenchymal cells encompassed of heterogeneous cell subsets orchestrate this complex process. The lack of a full characterization of the stromal diversity and function in CD has consequently slowed the development of anti-fibrotic targets. Two recent studies align together demonstrating FAP+TWIST1+ fibroblasts as the primary mesenchymal population driving intestinal fibrosis in CD. Genetic and pharmacological targeting of Twist1 in mouse models proved the functional role of Fap+Twist1+ fibroblasts and indicate the use of the Twist1 inhibitor harmine as a potential therapeutic strategy to revert fibrosis.
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Affiliation(s)
- Sara Lovisa
- Department of Gastroenterology, IRCCS Humanitas Research Hospital, 20089 Rozzano, Milan, Italy
- Department of Gastroenterology, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Stefania Vetrano
- Department of Gastroenterology, IRCCS Humanitas Research Hospital, 20089 Rozzano, Milan, Italy
- Department of Gastroenterology, IRCCS Humanitas Research Hospital, Rozzano, Italy
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16
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Chen L, Jiang Z, Zhou H, Zhang H, Huang C, Wen Q, Liu X, He Y, Shi P, Liu K, Yang L. Effect of hyaluronic acid on the formation of acellular dermal matrix-based interpenetrating network sponge scaffolds for accelerating diabetic wound healing through photothermal warm bath. Int J Biol Macromol 2024; 283:137268. [PMID: 39505193 DOI: 10.1016/j.ijbiomac.2024.137268] [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: 07/26/2024] [Revised: 10/31/2024] [Accepted: 11/04/2024] [Indexed: 11/08/2024]
Abstract
Adequate vascularization essential for delivering nutrients critical to wound healing, yet impaired angiogenesis is a major barrier in diabetic wound repair. This study investigates the impact of hyaluronic acid on interpenetrating network sponge scaffolds derived from an acellular dermal matrix, with the aim of enhancing vascularization and healing of diabetic wounds via photothermal warm bath therapy. We prepared three-dimensional porous sponges (H1P4D2@DFO) using molecular interpenetration and ion crosslinking of porcine acellular dermal matrix (PADM), hyaluronic acid, and polydopamine nanoparticles loaded with deferoxamine mesylate (PDA@DFO). This resulting extracellular matrix-based sponge demonstrated properties suitable for wound repair, including high cell adhesion, biocompatibility, bioactivity, porosity (85 %), and water absorption (4500 %). The near-infrared (NIR) photothermal effect of PDA@DFO and the sustained release of deferoxamine mesylate (DFO) enhanced wound vascularization within the wound site. These findings suggest that our sponge scaffold can simulate skin-like structures and establish a supportive microenvironment conducive to microvascular reconstruction. By combining the photothermal warm bath approach with the scaffold's tailored 3D structure, we observed enhanced angiogenesis and accelerated diabetic wound healing, indicating potential clinical applications of these scaffolds in chronic wound management.
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Affiliation(s)
- Lianglong Chen
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangdong 510515, China
| | - Ziwei Jiang
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangdong 510515, China
| | - Hai Zhou
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangdong 510515, China
| | - Huihui Zhang
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangdong 510515, China
| | - Chaoyang Huang
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangdong 510515, China
| | - Qiulan Wen
- Department of Orthopaedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Xiaoyang Liu
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangdong 510515, China
| | - Yufang He
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangdong 510515, China
| | - Pengwei Shi
- Emergency Department, Nanfang Hospital, Southern Medical University, Guangzhou 50515, China.
| | - Kun Liu
- Experimental Education/Administration Centre, National Demonstration Centre for Experimental Education of Basic Medical Sciences, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Lei Yang
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangdong 510515, China.
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17
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Pallod S, Aguilera Olvera R, Ghosh D, Rai L, Brimo S, DeCambra W, Sant HG, Ristich E, Singh V, Abedin MR, Chang N, Yarger JL, Lee JK, Kilbourne J, Yaron JR, Haydel SE, Rege K. Skin repair and infection control in diabetic, obese mice using bioactive laser-activated sealants. Biomaterials 2024; 311:122668. [PMID: 38908232 PMCID: PMC11562812 DOI: 10.1016/j.biomaterials.2024.122668] [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: 04/08/2024] [Accepted: 06/13/2024] [Indexed: 06/24/2024]
Abstract
Conventional wound approximation devices, including sutures, staples, and glues, are widely used but risk of wound dehiscence, local infection, and scarring can be exacerbated in these approaches, including in diabetic and obese individuals. This study reports the efficacy and quality of tissue repair upon photothermal sealing of full-thickness incisional skin wounds using silk fibroin-based laser-activated sealants (LASEs) containing copper chloride salt (Cu-LASE) or silver nanoprisms (AgNPr-LASE), which absorb and convert near-infrared (NIR) laser energy to heat. LASE application results in rapid and effective skin sealing in healthy, immunodeficient, as well as diabetic and obese mice. Although lower recovery of epidermal structure and function was seen with AgNPr-LASE sealing, likely because of the hyperthermia induced by laser and presence of this material in the wound space, this approach resulted in higher enhancement in recovery of skin biomechanical strength compared to sutures and Cu-LASEs in diabetic, obese mice. Histological and immunohistochemical analyses revealed that AgNPr-LASEs resulted in significantly lower neutrophil migration to the wound compared to Cu-LASEs and sutures, indicating a more muted inflammatory response. Cu-LASEs resulted in local tissue toxicity likely because of effects of copper ions as manifested in the form of a significant epidermal gap and a 'depletion zone', which was a region devoid of viable cells proximal to the wound. Compared to sutures, LASE-mediated sealing, in later stages of healing, resulted in increased angiogenesis and diminished myofibroblast activation, which can be indicative of lower scarring. AgNPr-LASE loaded with vancomycin, an antibiotic drug, significantly lowered methicillin-resistant Staphylococcus aureus (MRSA) load in a pathogen challenge model in diabetic and obese mice and also reduced post-infection inflammation of tissue compared to antibacterial sutures. Taken together, these attributes indicate that AgNPr-LASE demonstrated a more balanced quality of tissue sealing and repair in diabetic and obese mice and can be used for combating local infections, that can result in poor healing in these individuals.
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Affiliation(s)
- Shubham Pallod
- Center for Biomaterials Innovation and Translation, Biodesign Institute, Arizona State University, USA; Biological Design Graduate Program, School for Engineering of Matter, Transport, and Energy, Arizona State University, USA
| | - Rodrigo Aguilera Olvera
- Center for Bioelectronics and Biosensors, Biodesign Institute, Arizona State University, USA
| | - Deepanjan Ghosh
- Biological Design Graduate Program, School for Engineering of Matter, Transport, and Energy, Arizona State University, USA
| | - Lama Rai
- Center for Biomaterials Innovation and Translation, Biodesign Institute, Arizona State University, USA; College of Health Solutions, Arizona State University, USA
| | - Souzan Brimo
- Center for Biomaterials Innovation and Translation, Biodesign Institute, Arizona State University, USA; Biomedical Engineering, School for Biological and Health Systems Engineering, Arizona State University, USA
| | | | - Harsh Girish Sant
- Center for Biomaterials Innovation and Translation, Biodesign Institute, Arizona State University, USA; Chemical Engineering, School for Engineering of Matter, Transport, and Energy, Arizona State University, USA
| | - Eron Ristich
- School of Molecular Sciences, Arizona State University, USA; School of Computing and Augmented Intelligence, Arizona State University, USA
| | - Vanshika Singh
- Center for Biomaterials Innovation and Translation, Biodesign Institute, Arizona State University, USA; Biomedical Engineering, School for Biological and Health Systems Engineering, Arizona State University, USA
| | - Muhammad Raisul Abedin
- Center for Biomaterials Innovation and Translation, Biodesign Institute, Arizona State University, USA
| | - Nicolas Chang
- Center for Biomaterials Innovation and Translation, Biodesign Institute, Arizona State University, USA; Biomedical Engineering, School for Biological and Health Systems Engineering, Arizona State University, USA
| | | | - Jung Keun Lee
- Departments of Pathology and Population Medicine, Midwestern University, College of Veterinary Medicine, 5725 West Utopia Rd., Glendale, AZ, 85308, USA
| | | | - Jordan R Yaron
- Center for Biomaterials Innovation and Translation, Biodesign Institute, Arizona State University, USA
| | - Shelley E Haydel
- Center for Bioelectronics and Biosensors, Biodesign Institute, Arizona State University, USA; School of Life Sciences, Arizona State University, 501 E. Tyler Mall ECG 303, Tempe, AZ, 85287-6106, USA
| | - Kaushal Rege
- Center for Biomaterials Innovation and Translation, Biodesign Institute, Arizona State University, USA; Biological Design Graduate Program, School for Engineering of Matter, Transport, and Energy, Arizona State University, USA; Chemical Engineering, School for Engineering of Matter, Transport, and Energy, Arizona State University, USA.
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18
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Guillard J, Schwörer S. Metabolic control of collagen synthesis. Matrix Biol 2024; 133:43-56. [PMID: 39084474 PMCID: PMC11402592 DOI: 10.1016/j.matbio.2024.07.003] [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: 05/26/2024] [Revised: 07/25/2024] [Accepted: 07/26/2024] [Indexed: 08/02/2024]
Abstract
The extracellular matrix (ECM) is present in all tissues and crucial in maintaining normal tissue homeostasis and function. Defects in ECM synthesis and remodeling can lead to various diseases, while overproduction of ECM components can cause severe conditions like organ fibrosis and influence cancer progression and therapy resistance. Collagens are the most abundant core ECM proteins in physiological and pathological conditions and are predominantly synthesized by fibroblasts. Previous efforts to target aberrant collagen synthesis in fibroblasts by inhibiting pro-fibrotic signaling cascades have been ineffective. More recently, metabolic rewiring downstream of pro-fibrotic signaling has emerged as a critical regulator of collagen synthesis in fibroblasts. Here, we propose that targeting the metabolic pathways involved in ECM biomass generation provides a novel avenue for treating conditions characterized by excessive collagen accumulation. This review summarizes the unique metabolic challenges collagen synthesis imposes on fibroblasts and discusses how underlying metabolic networks could be exploited to create therapeutic opportunities in cancer and fibrotic disease. Finally, we provide a perspective on open questions in the field and how conceptual and technical advances will help address them to unlock novel metabolic vulnerabilities of collagen synthesis in fibroblasts and beyond.
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Affiliation(s)
- Julien Guillard
- Section of Hematology/Oncology, Department of Medicine, Biological Sciences Division, The University of Chicago, Chicago, IL, 60637, USA
| | - Simon Schwörer
- Section of Hematology/Oncology, Department of Medicine, Biological Sciences Division, The University of Chicago, Chicago, IL, 60637, USA; Committee on Cancer Biology, Committee on Molecular Metabolism and Nutrition, The University of Chicago, Chicago, IL, 60637, USA.
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19
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Son DO, Benitez R, Diao L, Hinz B. How to Keep Myofibroblasts under Control: Culture of Mouse Skin Fibroblasts on Soft Substrates. J Invest Dermatol 2024; 144:1923-1934. [PMID: 39078357 DOI: 10.1016/j.jid.2024.05.033] [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: 02/12/2024] [Revised: 05/03/2024] [Accepted: 05/21/2024] [Indexed: 07/31/2024]
Abstract
During the physiological healing of skin wounds, fibroblasts recruited from the uninjured adjacent dermis and deeper subcutaneous fascia layers are transiently activated into myofibroblasts to first secrete and then contract collagen-rich extracellular matrix into a mechanically resistant scar. Scar tissue restores skin integrity after damage but comes at the expense of poor esthetics and loss of tissue function. Stiff scar matrix also mechanically activates various precursor cells into myofibroblasts in a positive feedback loop. Persistent myofibroblast activation results in pathologic accumulation of fibrous collagen and hypertrophic scarring, called fibrosis. Consequently, the mechanisms of fibroblast-to-myofibroblast activation and persistence are studied to develop antifibrotic and prohealing treatments. Mechanistic understanding often starts in a plastic cell culture dish. This can be problematic because contact of fibroblasts with tissue culture plastic or glass surfaces invariably generates myofibroblast phenotypes in standard culture. We describe a straight-forward method to produce soft cell culture surfaces for fibroblast isolation and continued culture and highlight key advantages and limitations of the approach. Adding a layer of elastic silicone polymer tunable to the softness of normal skin and the stiffness of pathologic scars allows to control mechanical fibroblast activation while preserving the simplicity of conventional 2-dimensional cell culture.
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Affiliation(s)
- Dong Ok Son
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Unity Health Toronto, Toronto, Canada
| | - Raquel Benitez
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Unity Health Toronto, Toronto, Canada
| | - Li Diao
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Unity Health Toronto, Toronto, Canada
| | - Boris Hinz
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Unity Health Toronto, Toronto, Canada; Faculty of Dentistry, University of Toronto, Toronto, Canada.
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20
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Zhou X, LeBleu VS, Fletcher-Sananikone E, Kim J, Dai J, Li B, Wu CC, Sugimoto H, Miyake T, Becker LM, Volpert OV, Lawson E, Espinosa Da Silva C, Patel SI, Kizu A, Ehsanipour EA, Sha D, Karam JA, McAndrews KM, Kalluri R. Vascular heterogeneity of tight junction Claudins guides organotropic metastasis. NATURE CANCER 2024; 5:1371-1389. [PMID: 39289595 PMCID: PMC11987010 DOI: 10.1038/s43018-024-00813-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 07/23/2024] [Indexed: 09/19/2024]
Abstract
Carcinomas are associated with metastasis to specific organs while sparing others. Breast cancer presents with lung metastasis but rarely kidney metastasis. Using this difference as an example, we queried the mechanism(s) behind the proclivity for organ-specific metastasis. We used spontaneous and implant models of metastatic mammary carcinoma coupled with inflammatory tissue fibrosis, single-cell sequencing analyses and functional studies to unravel the causal determinants of organ-specific metastasis. Here we show that lung metastasis is facilitated by angiopoietin 2 (Ang2)-mediated suppression of lung-specific endothelial tight junction protein Claudin 5, which is augmented by the inflammatory fibrotic microenvironment and prevented by anti-Ang2 blocking antibodies, while kidney metastasis is prevented by non-Ang2-responsive Claudins 2 and 10. Suppression of Claudins 2 and 10 was sufficient to induce the emergence of kidney metastasis. This study illustrates the influence of organ-specific vascular heterogeneity in determining organotropic metastasis, independent of cancer cell-intrinsic mechanisms.
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Affiliation(s)
- Xunian Zhou
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Valerie S LeBleu
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Internal Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Eliot Fletcher-Sananikone
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jiha Kim
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jianli Dai
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Bingrui Li
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Chia-Chin Wu
- Department of Genomic Medicine, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Hikaru Sugimoto
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Toru Miyake
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Lisa M Becker
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Olga V Volpert
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Erica Lawson
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Cristina Espinosa Da Silva
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sarah I Patel
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Akane Kizu
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ehsan A Ehsanipour
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Di Sha
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jose Antonio Karam
- Department of Urology, Division of Surgery, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Kathleen M McAndrews
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Raghu Kalluri
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
- Department of Bioengineering, Rice University, Houston, TX, USA.
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA.
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21
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Konger RL, Xuei X, Derr-Yellin E, Fang F, Gao H, Liu Y. The Loss of PPARγ Expression and Signaling Is a Key Feature of Cutaneous Actinic Disease and Squamous Cell Carcinoma: Association with Tumor Stromal Inflammation. Cells 2024; 13:1356. [PMID: 39195246 PMCID: PMC11352891 DOI: 10.3390/cells13161356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 08/02/2024] [Accepted: 08/12/2024] [Indexed: 08/29/2024] Open
Abstract
Given the importance of peroxisome proliferator-activated receptor (PPAR)-gamma in epidermal inflammation and carcinogenesis, we analyzed the transcriptomic changes observed in epidermal PPARγ-deficient mice (Pparg-/-epi). A gene set enrichment analysis revealed a close association with epithelial malignancy, inflammatory cell chemotaxis, and cell survival. Single-cell sequencing of Pparg-/-epi mice verified changes to the stromal compartment, including increased inflammatory cell infiltrates, particularly neutrophils, and an increase in fibroblasts expressing myofibroblast marker genes. A comparison of transcriptomic data from Pparg-/-epi and publicly available human and/or mouse actinic keratoses (AKs) and cutaneous squamous cell carcinomas (SCCs) revealed a strong correlation between the datasets. Importantly, PPAR signaling was the top common inhibited canonical pathway in AKs and SCCs. Both AKs and SCCs also had significantly reduced PPARG expression and PPARγ activity z-scores. Smaller reductions in PPARA expression and PPARα activity and increased PPARD expression but reduced PPARδ activation were also observed. Reduced PPAR activity was also associated with reduced PPARα/RXRα activity, while LPS/IL1-mediated inhibition of RXR activity was significantly activated in the tumor datasets. Notably, these changes were not observed in normal sun-exposed skin relative to non-exposed skin. Finally, Ppara and Pparg were heavily expressed in sebocytes, while Ppard was highly expressed in myofibroblasts, suggesting that PPARδ has a role in myofibroblast differentiation. In conclusion, these data provide strong evidence that PPARγ and possibly PPARα represent key tumor suppressors by acting as master inhibitors of the inflammatory changes found in AKs and SCCs.
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Affiliation(s)
- Raymond L. Konger
- Department of Pathology & Laboratory Medicine, Richard L. Roudebush Veterans Affairs Medical Center, Indianapolis, IN 46202, USA
- Department of Pathology & Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
| | - Xiaoling Xuei
- Department of Medical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (X.X.); (F.F.); (H.G.); (Y.L.)
| | - Ethel Derr-Yellin
- Department of Pathology & Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
| | - Fang Fang
- Department of Medical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (X.X.); (F.F.); (H.G.); (Y.L.)
| | - Hongyu Gao
- Department of Medical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (X.X.); (F.F.); (H.G.); (Y.L.)
| | - Yunlong Liu
- Department of Medical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (X.X.); (F.F.); (H.G.); (Y.L.)
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22
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Peña OA, Martin P. Cellular and molecular mechanisms of skin wound healing. Nat Rev Mol Cell Biol 2024; 25:599-616. [PMID: 38528155 DOI: 10.1038/s41580-024-00715-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2024] [Indexed: 03/27/2024]
Abstract
Wound healing is a complex process that involves the coordinated actions of many different tissues and cell lineages. It requires tight orchestration of cell migration, proliferation, matrix deposition and remodelling, alongside inflammation and angiogenesis. Whereas small skin wounds heal in days, larger injuries resulting from trauma, acute illness or major surgery can take several weeks to heal, generally leaving behind a fibrotic scar that can impact tissue function. Development of therapeutics to prevent scarring and successfully repair chronic wounds requires a fuller knowledge of the cellular and molecular mechanisms driving wound healing. In this Review, we discuss the current understanding of the different phases of wound healing, from clot formation through re-epithelialization, angiogenesis and subsequent scar deposition. We highlight the contribution of different cell types to skin repair, with emphasis on how both innate and adaptive immune cells in the wound inflammatory response influence classically studied wound cell lineages, including keratinocytes, fibroblasts and endothelial cells, but also some of the less-studied cell lineages such as adipocytes, melanocytes and cutaneous nerves. Finally, we discuss newer approaches and research directions that have the potential to further our understanding of the mechanisms underpinning tissue repair.
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Affiliation(s)
- Oscar A Peña
- School of Biochemistry, University of Bristol, Bristol, UK.
| | - Paul Martin
- School of Biochemistry, University of Bristol, Bristol, UK.
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23
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Zhao S, Xue C, Burns DC, Shoichet MS. Viscoelastic Supramolecular Hyaluronan-Peptide Cross-Linked Hydrogels. Biomacromolecules 2024; 25:3946-3958. [PMID: 38913947 DOI: 10.1021/acs.biomac.4c00095] [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: 06/26/2024]
Abstract
Viscoelasticity plays a key role in hydrogel design. We designed a physically cross-linked hydrogel with tunable viscoelasticity, comprising supramolecular-assembled peptides coupled to hyaluronan (HA), a native extracellular matrix component. We then explored the structural and molecular mechanisms underlying the mechanical properties of a series of these HA-peptide hydrogels. By modifying the peptide sequence, we modulated both long- and short-time stress relaxation rates as a way to target viscoelasticity with limited impact on stiffness, leading to gels that relax up to 60% of stress in 10 min. Gels with the highest viscoelasticity exhibited large mesh sizes and β-sheet secondary structures. The stiffness of the gel correlated with hydrogen bonding between the peptide chains. These gels are cytocompatible: highly viscoelastic gels that mimic the native skin microenvironment promote dermal fibroblast cell spreading. Moreover, HA-peptide gels enabled cell encapsulation, as shown with primary human T cells. Overall, these physically-cross-linked hydrogels enable tunable viscoelasticity that can be used to modulate cell morphology.
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Affiliation(s)
- Spencer Zhao
- Division of Engineering Science, University of Toronto, Toronto, Ontario M5S 1A1, Canada
- Department of Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 1A1, Canada
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 1A1, Canada
| | - Chang Xue
- Department of Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 1A1, Canada
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 1A1, Canada
| | - Darcy C Burns
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 1A1, Canada
| | - Molly S Shoichet
- Department of Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 1A1, Canada
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 1A1, Canada
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 1A1, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 1A1, Canada
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24
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Chandrasegaran S, Sluka JP, Shanley D. Modelling the spatiotemporal dynamics of senescent cells in wound healing, chronic wounds, and fibrosis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.04.602041. [PMID: 39026713 PMCID: PMC11257496 DOI: 10.1101/2024.07.04.602041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Cellular senescence is known to drive age-related pathology through the senescence-associated secretory phenotype (SASP). However, it also plays important physiological roles such as cancer suppression, embryogenesis and wound healing. Wound healing is a tightly regulated process which when disrupted results in conditions such as fibrosis and chronic wounds. Senescent cells appear during the proliferation phase of the healing process where the SASP is involved in maintaining tissue homeostasis after damage. Interestingly, SASP composition and functionality was recently found to be temporally regulated, with distinct SASP profiles involved: a fibrogenic, followed by a fibrolytic SASP, which could have important implications for the role of senescent cells in wound healing. Given the number of factors at play a full understanding requires addressing the multiple levels of complexity, pertaining to the various cell behaviours, individually followed by investigating the interactions and influence each of these elements have on each other and the system as a whole. Here, a systems biology approach was adopted whereby a multi-scale model of wound healing that includes the dynamics of senescent cell behaviour and corresponding SASP composition within the wound microenvironment was developed. The model was built using the software CompuCell3D, which is based on a Cellular Potts modelling framework. We used an existing body of data on healthy wound healing to calibrate the model and validation was done on known disease conditions. The model provides understanding of the spatiotemporal dynamics of different senescent cell phenotypes and the roles they play within the wound healing process. The model also shows how an overall disruption of tissue-level coordination due to age-related changes results in different disease states including fibrosis and chronic wounds. Further specific data to increase model confidence could be used to explore senolytic treatments in wound disorders.
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Affiliation(s)
- Sharmilla Chandrasegaran
- Campus for Ageing and Vitality, Biosciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - James P Sluka
- Department of Intelligent Systems Engineering and Biocomplexity Institute, Indiana University Bloomington, Bloomington, IN, USA
| | - Daryl Shanley
- Campus for Ageing and Vitality, Biosciences Institute, Newcastle University, Newcastle upon Tyne, UK
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25
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Xu J, Lin Y, Wang Y, Gao H, Li Y, Zhang C, Chen Q, Chen S, Peng Q. Multifunctional Regeneration Silicon-Loaded Chitosan Hydrogels for MRSA-Infected Diabetic Wound Healing. Adv Healthc Mater 2024; 13:e2303501. [PMID: 37956229 DOI: 10.1002/adhm.202303501] [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: 10/12/2023] [Indexed: 11/15/2023]
Abstract
Repeated microbial infection, excess reactive oxygen species (ROS) accumulation, cell dysfunction, and impaired angiogenesis under hyperglycemia severely inhibit diabetic wound healing. Therefore, developing multifunctional wound dressings accommodating the complex microenvironment of diabetic wounds is of great significance. Here, a multifunctional hydrogel (Regesi-CS) is prepared by loading regeneration silicon (Regesi) in the non-crosslinked chitosan (CS) solution, followed by freeze-drying and hydration. As expected, the blank non-crosslinked CS hydrogel (1%) shows great antibacterial activity against Escherichia coli, Staphylococcus aureus, and methicillin-resistant S. aureus (MRSA), improves fibroblast migration, and scavenges intracellular ROS. Interestingly, after loading 1% Regesi, the Regesi-CS (1%-1%) hydrogel shows greater antibacterial activity, significantly promotes fibroblasts proliferation and migration, scavenges much more ROS, and substantially protects fibroblasts under oxidative stress, yet Regesi alone has no or even negative effects. In the MRSA-infected diabetic wound model, Regesi-CS (1%-1%) hydrogel effectively promotes wound healing by eliminating bacterial infection, enhancing granulation tissue formation, promoting collagen deposition, and improving angiogenesis. In conclusion, Regesi-CS hydrogel may be a potential wound dressing for the effective treatment and management of chronic diabetic wounds.
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Affiliation(s)
- Jingchen Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
- Department of Dental Medical Center, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Yao Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yue Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Hongyu Gao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yuanhong Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Chaoliang Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Qianming Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Song Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Qiang Peng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
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26
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Richards SM, Gubser Keller C, Kreutzer R, Greiner G, Ley S, Doelemeyer A, Dubost V, Flandre T, Kirkland S, Carbone W, Pandya R, Knehr J, Roma G, Schuierer S, Bouchez L, Seuwen K, Aebi A, Westhead D, Hintzen G, Jurisic G, Hossain I, Neri M, Manevski N, Balavenkatraman KK, Moulin P, Begrich A, Bertschi B, Huber R, Bouwmeester T, Driver VR, von Schwabedissen M, Schaefer D, Wettstein B, Wettstein R, Ruffner H. Molecular characterization of chronic cutaneous wounds reveals subregion- and wound type-specific differential gene expression. Int Wound J 2024; 21:e14447. [PMID: 38149752 PMCID: PMC10958103 DOI: 10.1111/iwj.14447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 10/06/2023] [Accepted: 10/10/2023] [Indexed: 12/28/2023] Open
Abstract
A limited understanding of the pathology underlying chronic wounds has hindered the development of effective diagnostic markers and pharmaceutical interventions. This study aimed to elucidate the molecular composition of various common chronic ulcer types to facilitate drug discovery strategies. We conducted a comprehensive analysis of leg ulcers (LUs), encompassing venous and arterial ulcers, foot ulcers (FUs), pressure ulcers (PUs), and compared them with surgical wound healing complications (WHCs). To explore the pathophysiological mechanisms and identify similarities or differences within wounds, we dissected wounds into distinct subregions, including the wound bed, border, and peri-wound areas, and compared them against intact skin. By correlating histopathology, RNA sequencing (RNA-Seq), and immunohistochemistry (IHC), we identified unique genes, pathways, and cell type abundance patterns in each wound type and subregion. These correlations aim to aid clinicians in selecting targeted treatment options and informing the design of future preclinical and clinical studies in wound healing. Notably, specific genes, such as PITX1 and UPP1, exhibited exclusive upregulation in LUs and FUs, potentially offering significant benefits to specialists in limb preservation and clinical treatment decisions. In contrast, comparisons between different wound subregions, regardless of wound type, revealed distinct expression profiles. The pleiotropic chemokine-like ligand GPR15L (C10orf99) and transmembrane serine proteases TMPRSS11A/D were significantly upregulated in wound border subregions. Interestingly, WHCs exhibited a nearly identical transcriptome to PUs, indicating clinical relevance. Histological examination revealed blood vessel occlusions with impaired angiogenesis in chronic wounds, alongside elevated expression of genes and immunoreactive markers related to blood vessel and lymphatic epithelial cells in wound bed subregions. Additionally, inflammatory and epithelial markers indicated heightened inflammatory responses in wound bed and border subregions and reduced wound bed epithelialization. In summary, chronic wounds from diverse anatomical sites share common aspects of wound pathophysiology but also exhibit distinct molecular differences. These unique molecular characteristics present promising opportunities for drug discovery and treatment, particularly for patients suffering from chronic wounds. The identified diagnostic markers hold the potential to enhance preclinical and clinical trials in the field of wound healing.
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Affiliation(s)
| | | | - Robert Kreutzer
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- Department of PathologyAnaPath Services GmbHLiestalSwitzerland
| | | | - Svenja Ley
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Arno Doelemeyer
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Valerie Dubost
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Thierry Flandre
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Susan Kirkland
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- Harvantis Pharma Consulting LtdLondonUK
| | - Walter Carbone
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- Research and Development CoordinatorELI TechGroup Corso SvizzeraTorinoItaly
| | - Rishika Pandya
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Judith Knehr
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Guglielmo Roma
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- Discovery Data ScienceGSK VaccinesSienaItaly
| | - Sven Schuierer
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Laure Bouchez
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- Therapeutics Department, Executive in ResidenceGeneral InceptionBaselSwitzerland
| | - Klaus Seuwen
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Alexandra Aebi
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - David Westhead
- Leeds Institute of Data AnalyticsUniversity of LeedsLeedsUK
| | - Gabriele Hintzen
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- Translational ScienceAffimed GmbHMannheimGermany
| | - Giorgia Jurisic
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Imtiaz Hossain
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Marilisa Neri
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Nenad Manevski
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- Translational PKPD and Clinical Pharmacology, Pharmaceutical Sciences, pREDF. Hoffmann‐La Roche AGBaselSwitzerland
| | | | - Pierre Moulin
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | - Annette Begrich
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | | | - Roland Huber
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
| | | | - Vickie R. Driver
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
- INOVA HealthcareWound Healing and Hyperbaric CentersFalls ChurchVirginiaUSA
| | | | - Dirk Schaefer
- Plastic, Reconstructive, Aesthetic and Hand SurgeryUniversity Hospital BaselBaselSwitzerland
| | - Barbara Wettstein
- Plastic, Reconstructive, Aesthetic and Hand SurgeryUniversity Hospital BaselBaselSwitzerland
| | - Reto Wettstein
- Plastic, Reconstructive, Aesthetic and Hand SurgeryUniversity Hospital BaselBaselSwitzerland
| | - Heinz Ruffner
- Novartis Biomedical ResearchNovartis Pharma AGBaselSwitzerland
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Zhao Z, Han W, Huang G, He Y, Zuo X, Hong L. Increased extracellular matrix stiffness regulates myofibroblast transformation through induction of autophagy-mediated Kindlin-2 cytoplasmic translocation. Exp Cell Res 2024; 436:113974. [PMID: 38346630 DOI: 10.1016/j.yexcr.2024.113974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 02/03/2024] [Accepted: 02/09/2024] [Indexed: 03/11/2024]
Abstract
The extracellular matrix (ECM) mechanical properties regulate biological processes, such as fibroblast-myofibroblast transformation (FMT), which is a crucial component in pelvic organ prolapse (POP) development. The 'Kindlin-2' protein, expressed by fibroblasts, plays an important role in the development of the mesoderm, which is responsible for connective tissue formation; however, the role of Kindlin-2 in FMT remains to be explored. In this study, we aimed to explore the role of Kindlin-2 in FMT as it relates to POP. We found that ECM stiffness induces autophagy to translocate Kindlin-2 to the cytoplasm of L929 cells, where it interacts with and degrades MOB1, thereby facilitating Yes-associated protein (YAP) entry into the nucleus and influencing FMT progression. Stiffness-induced autophagy was inhibited when using an autophagy inhibitor, which blocked the translocation of Kindlin-2 to the cytoplasm and partially reversed high-stiffness-induced FMT. In patients with POP, we observed an increase in cytoplasmic Kindlin-2 and nuclear YAP levels. Similar changes in vaginal wall-associated proteins were observed in a mouse model of acute vaginal injury. In conclusion, Kindlin-2 is a key gene affecting ECM stiffness, which regulates FMT by inducing autophagy and may influence the development of POP.
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Affiliation(s)
- Zhihan Zhao
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Wuyue Han
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Guotao Huang
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Yong He
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Xiaohu Zuo
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Li Hong
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China.
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28
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Ceniti C, Di Vito A, Ambrosio RL, Anastasio A, Bria J, Britti D, Chiarella E. Food Safety Assessment and Nutraceutical Outcomes of Dairy By-Products: Ovine Milk Whey as Wound Repair Enhancer on Injured Human Primary Gingival Fibroblasts. Foods 2024; 13:683. [PMID: 38472796 DOI: 10.3390/foods13050683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
The valorization of milk whey appears to be a promising strategy for managing by-products from dairy food industries, which incur demanding economic costs for treatment and/or disposal. Thanks to its numerous bioactive components, whey is expected to be increasingly incorporated into foods in the future. We investigated the safety of ovine milk whey through in vitro experiments on human primary gingival fibroblast (HGF-1) proliferation and wound healing. Fibroblasts play a crucial role in the repair processes from the late inflammatory phase until the final stages. Cells treated with varying concentrations of ovine whey (0.01%, 0.1%, 1%, and 10%) were able to close wounds more rapidly than vehicle-treated cells. Time- and dose-dependent responses were observed in cell populations exposed to ovine whey. Specifically, wounds treated with 0.1% and 10% milk whey showed better migratory capabilities compared to those treated with 0.01% and 1% milk whey after 24 and 48 h. In addition, ovine milk whey stimulates extracellular matrix deposition, as evidenced by the increasing levels of CD44 antigen density evaluated through FACS analysis, as well as COL1A1 expression measured both via RT-qPCR and immunofluorescence. This phenomenon was particularly evident at concentrations of 0.01% and 10%. Ensuring quality and safety has become a major concern for health authorities in the food industry. Our findings suggest that ovine milk whey is safe and possesses regenerative properties. It facilitates tissue re-establishment following exposure to environmental stress, particularly accelerating gingival wound closure.
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Affiliation(s)
- Carlotta Ceniti
- Department of Health Sciences, University "Magna Græcia" of Catanzaro, 88100 Catanzaro, Italy
| | - Anna Di Vito
- Laboratory of Morphology and Tissue Cell Biology, Department of Experimental and Clinical Medicine, University "Magna Græcia" of Catanzaro, 88100 Catanzaro, Italy
| | - Rosa Luisa Ambrosio
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
| | - Aniello Anastasio
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
| | - Jessica Bria
- Laboratory of Morphology and Tissue Cell Biology, Department of Experimental and Clinical Medicine, University "Magna Græcia" of Catanzaro, 88100 Catanzaro, Italy
| | - Domenico Britti
- Department of Health Sciences, University "Magna Græcia" of Catanzaro, 88100 Catanzaro, Italy
- Interdepartmental Center Veterinary Service for Human and Animal Health (CISVetSUA), University "Magna Græcia" of Catanzaro, 88100 Catanzaro, Italy
| | - Emanuela Chiarella
- Laboratory of Molecular Haematopoiesis and Stem Cell Biology, Department of Experimental and Clinical Medicine, University "Magna Græcia" of Catanzaro, 88100 Catanzaro, Italy
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29
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Roy B, Pekec T, Yuan L, Shivashankar GV. Implanting mechanically reprogrammed fibroblasts for aged tissue regeneration and wound healing. Aging Cell 2024; 23:e14032. [PMID: 38010905 PMCID: PMC10861198 DOI: 10.1111/acel.14032] [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: 04/23/2023] [Revised: 08/22/2023] [Accepted: 10/05/2023] [Indexed: 11/29/2023] Open
Abstract
Cell-based therapies are essential for tissue regeneration and wound healing during aging. Autologous transplantation of aging cells is ineffective due to their increased senescence and reduced tissue remodeling capabilities. Alternatively, implanting reprogrammed aged cells provides unique opportunities. In this paper, we demonstrate the implantation of partially reprogrammed aged human dermal fibroblasts into in vitro aged skin models for tissue regeneration and wound healing. The partially reprogrammed cells were obtained using our previously reported, highly efficient mechanical approach. Implanted cells showed enhanced expression of extracellular matrix proteins in the large area of aged tissue. In addition, the implanted cells at wound sites showed increased extracellular matrix protein synthesis and matrix alignment. Transcriptome analysis, combined with chromatin biomarkers, revealed these implanted cells upregulated tissue regeneration and wound healing pathways. Collectively our results provide a novel, nongenetic, partial reprogramming of aged cells for cell-based therapies in regenerative medicine.
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Affiliation(s)
- Bibhas Roy
- Division of Biology and ChemistryPaul Scherrer InstituteVilligenSwitzerland
| | - Tina Pekec
- Division of Biology and ChemistryPaul Scherrer InstituteVilligenSwitzerland
| | - Luezhen Yuan
- Division of Biology and ChemistryPaul Scherrer InstituteVilligenSwitzerland
- Department of Health Sciences and TechnologyETH ZurichZurichSwitzerland
| | - G. V. Shivashankar
- Division of Biology and ChemistryPaul Scherrer InstituteVilligenSwitzerland
- Department of Health Sciences and TechnologyETH ZurichZurichSwitzerland
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30
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Zhao B, Xu J, Wang Y, Li Y, Li Y, Zhang X, Zhang S, Yu L, Yuan Q. Periplaneta americana extract promotes hard palate mucosal wound healing via the PI3K/AKT signaling pathway in male mice. Arch Oral Biol 2024; 158:105856. [PMID: 38056227 DOI: 10.1016/j.archoralbio.2023.105856] [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: 09/22/2023] [Revised: 11/12/2023] [Accepted: 11/25/2023] [Indexed: 12/08/2023]
Abstract
OBJECTIVES This study aimed to investigate the effect of Periplaneta americana extract, a traditional Chinese medicine, on hard palate mucosal wound healing and explore the underlying mechanisms. DESIGN Hard palate mucosal wound model was established and the effects of Periplaneta americana extract on hard palate mucosal wound healing were investigated by stereomicroscopy observation and histological evaluation in vivo. Human oral keratinocytes and human gingival fibroblasts, which play key roles in hard palate mucosal wound healing, were selected as the main research cells in vitro. The effects of Periplaneta americana extract on cell proliferation, migration, and collagen formation were determined by cell counting kit-8 (CCK-8) assay, Transwell assay, and Van Gieson staining. The underlying mechanism was revealed by RNA sequencing, and results were verified by western blot assay. RESULTS Stereomicroscopy observation and H&E staining confirmed that Periplaneta americana extract accelerated the healing rate of hard palate mucosal wound (p < 0.001) in vivo. Transwell assay and Van Gieson staining assay showed that Periplaneta americana extract promoted the migration and collagen formation of human oral keratinocytes (p < 0.001) and human gingival fibroblasts (p < 0.001) in vitro. Mechanistically, RNA sequencing and western blot assay demonstrated that Periplaneta americana extract promoted hard palate mucosal wound healing via PI3K/AKT signaling, and the beneficial effects of Periplaneta americana extract were abrogated by the PI3K inhibitor LY294002. CONCLUSIONS Periplaneta americana extract shows promising effects for the promotion of hard palate mucosal wound healing and may be a novel candidate for clinical translation.
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Affiliation(s)
- Bin Zhao
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases,West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Jie Xu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases,West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Yuan Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases,West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Yuhan Li
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases,West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Yuyu Li
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases,West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Xiao Zhang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases,West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Shiwen Zhang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases,West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Leixiao Yu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases,West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Quan Yuan
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases,West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
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31
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Glabman RA, Olkowski CP, Minor HA, Bassel LL, Kedei N, Choyke PL, Sato N. Tumor Suppression by Anti-Fibroblast Activation Protein Near-Infrared Photoimmunotherapy Targeting Cancer-Associated Fibroblasts. Cancers (Basel) 2024; 16:449. [PMID: 38275890 PMCID: PMC10813865 DOI: 10.3390/cancers16020449] [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: 12/27/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024] Open
Abstract
Cancer-associated fibroblasts (CAFs) constitute a prominent cellular component of the tumor stroma, with various pro-tumorigenic roles. Numerous attempts to target fibroblast activation protein (FAP), a highly expressed marker in immunosuppressive CAFs, have failed to demonstrate anti-tumor efficacy in human clinical trials. Near-infrared photoimmunotherapy (NIR-PIT) is a highly selective tumor therapy that utilizes an antibody-photo-absorbing conjugate activated by near-infrared light. In this study, we examined the therapeutic efficacy of CAF depletion by NIR-PIT in two mouse tumor models. Using CAF-rich syngeneic lung and spontaneous mammary tumors, NIR-PIT against FAP or podoplanin was performed. Anti-FAP NIR-PIT effectively depleted FAP+ CAFs, as well as FAP+ myeloid cells, and suppressed tumor growth, whereas anti-podoplanin NIR-PIT was ineffective. Interferon-gamma production by CD8 T and natural killer cells was induced within hours after anti-FAP NIR-PIT. Additionally, lung metastases were reduced in the treated spontaneous mammary cancer model. Depletion of FAP+ stromal as well as FAP+ myeloid cells effectively suppressed tumor growth in bone marrow chimeras, suggesting that the depletion of both cell types in one treatment is an effective therapeutic approach. These findings highlight a promising therapy for selectively eliminating immunosuppressive FAP+ cells within the tumor microenvironment.
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Affiliation(s)
- Raisa A. Glabman
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; (R.A.G.); (C.P.O.); (H.A.M.); (P.L.C.)
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA
| | - Colleen P. Olkowski
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; (R.A.G.); (C.P.O.); (H.A.M.); (P.L.C.)
| | - Hannah A. Minor
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; (R.A.G.); (C.P.O.); (H.A.M.); (P.L.C.)
| | - Laura L. Bassel
- Center for Advanced Preclinical Research, Frederick National Laboratory for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21701, USA;
| | - Noemi Kedei
- Collaborative Protein Technology Resources, Office of Science and Technology Resources, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA;
| | - Peter L. Choyke
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; (R.A.G.); (C.P.O.); (H.A.M.); (P.L.C.)
| | - Noriko Sato
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; (R.A.G.); (C.P.O.); (H.A.M.); (P.L.C.)
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32
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Zhou Y, Cao T, Li Z, Qiao H, Dang E, Shao S, Wang G. Fibroblasts in immune-mediated inflammatory diseases: The soil of inflammation. Clin Immunol 2024; 258:109849. [PMID: 38008146 DOI: 10.1016/j.clim.2023.109849] [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: 07/09/2023] [Revised: 10/11/2023] [Accepted: 11/08/2023] [Indexed: 11/28/2023]
Abstract
As one of the most abundant stromal cells, fibroblasts are primarily responsible for the production and remodeling of the extracellular matrix. Traditionally, fibroblasts have been viewed as quiescent cells. However, recent advances in multi-omics technologies have demonstrated that fibroblasts exhibit remarkable functional diversity at the single-cell level. Additionally, fibroblasts are heterogeneous in their origins, tissue locations, and transitions with stromal cells. The dynamic nature of fibroblasts is further underscored by the fact that disease stages can impact their heterogeneity and behavior, particularly in immune-mediated inflammatory diseases such as psoriasis, inflammatory bowel diseases, and rheumatoid arthritis, etc. Fibroblasts can actively contribute to the disease initiation, progression, and relapse by responding to local microenvironmental signals, secreting downstream inflammatory factors, and interacting with immune cells during the pathological process. Here we focus on the development, plasticity, and heterogeneity of fibroblasts in inflammation, emphasizing the need for a developmental and dynamic perspective on fibroblasts.
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Affiliation(s)
- Yifan Zhou
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China
| | - Tianyu Cao
- Department of Dermatology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Zhiguo Li
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China
| | - Hongjiang Qiao
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China
| | - Erle Dang
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China
| | - Shuai Shao
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China.
| | - Gang Wang
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China.
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33
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Hu Y, Tang H, Xu N, Kang X, Wu W, Shen C, Lin J, Bao Y, Jiang X, Luo Z. Adhesive, Flexible, and Fast Degradable 3D-Printed Wound Dressings with a Simple Composition. Adv Healthc Mater 2024; 13:e2302063. [PMID: 37916920 DOI: 10.1002/adhm.202302063] [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: 07/01/2023] [Revised: 09/15/2023] [Indexed: 11/03/2023]
Abstract
3D printing technology has revolutionized the field of wound dressings, offering tailored solutions with mechanical support to facilitate wound closure. In addition to personalization, the intricate nature of the wound healing process requires wound dressing materials with diverse properties, such as moisturization, flexibility, adhesion, anti-oxidation and degradability. Unfortunately, current materials used in digital light processing (DLP) 3D printing have been inadequate in meeting these crucial criteria. This study introduces a novel DLP resin that is biocompatible and consists of only three commonly employed non-toxic compounds in biomaterials, that is, dopamine, poly(ethylene glycol) diacrylate, and N-vinylpyrrolidone. Simple as it is, this material system fulfills all essential functions for effective wound healing. Unlike most DLP resins that are non-degradable and rigid, this material exhibits tunable and rapid degradation kinetics, allowing for complete hydrolysis within a few hours. Furthermore, the high flexibility enables conformal application of complex dressings in challenging areas such as finger joints. Using a difficult-to-heal wound model, the manifold positive effects on wound healing in vivo, including granulation tissue formation, inflammation regulation, and vascularization are substantiated. The simplicity and versatility of this material make it a promising option for personalized wound care, holding significant potential for future translation.
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Affiliation(s)
- Yu Hu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Hao Tang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Nan Xu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Xiaowo Kang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Weijun Wu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Chuhan Shen
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Junsheng Lin
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Yinyin Bao
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Xingyu Jiang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Zhi Luo
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
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34
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Liu F, Wang L, Zhai X, Ji S, Ye J, Zhu Z, Teng C, Dong W, Wei W. A multi-functional double cross-linked chitosan hydrogel with tunable mechanical and antibacterial properties for skin wound dressing. Carbohydr Polym 2023; 322:121344. [PMID: 37839832 DOI: 10.1016/j.carbpol.2023.121344] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/16/2023] [Accepted: 08/27/2023] [Indexed: 10/17/2023]
Abstract
Chitosan hydrogels with essential antibacterial properties and biocompatibility have great potential in tissue engineering and regeneration medicine. However, pure chitosan hydrogel could be limited by insufficient mechanical properties. In this work, we designed a multi-functional chitosan hydrogel based on the combination of chitosan methacrylate (CTSMA) and sulfhydrated chitosan (CTSSH), which is cross-linked simultaneously by free-radical polymerization reaction and Thiol-ene reaction. The CTSMA/CTSSH (CMS) hydrogels displayed superior tissue adhesive and mechanical properties when compared to pure CTSMA hydrogel. Additionally, the resulting hydrogels exhibited potent antimicrobial effects against both E. coli and S. aureus. Besides, the CMS hydrogels exhibited good biocompatibility as demonstrated by cytotoxicity and cell proliferation experiments using fibroblasts cells (L929) and adipose-derived stem cells (ADSCs). In vivo experiment, the repairing effect of hydrogels on full-thickness skin defect model in rats was studied. Histological and immunohistochemical staining results showed that CMS hydrogels promoted angiogenesis, dermal repair and epidermal regeneration. Overall, the study highlights the potential of the CMS hydrogels as a promising biomaterial in wound healing applications.
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Affiliation(s)
- Fengling Liu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China; Department of Orthopaedic Surgery, the Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, Zhejiang 322000, China
| | - Lu Wang
- Department of Orthopaedic Surgery, the Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, Zhejiang 322000, China
| | - Xinrang Zhai
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China; Department of Orthopaedic Surgery, the Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, Zhejiang 322000, China
| | - Shunxian Ji
- Department of Orthopaedic Surgery, the Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, Zhejiang 322000, China
| | - Jingjia Ye
- Department of Orthopaedic Surgery, the Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, Zhejiang 322000, China
| | - Zhiqiang Zhu
- Department of Orthopaedic Surgery, the Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, Zhejiang 322000, China
| | - Chong Teng
- Department of Orthopaedic Surgery, the Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, Zhejiang 322000, China.
| | - Wei Dong
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China.
| | - Wei Wei
- Department of Orthopaedic Surgery, the Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, Zhejiang 322000, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310000, China.
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Yang C, Zhang Y, Zhang X, Tang P, Zheng T, Ran R, Li G. An injectable, self-healing, and antioxidant collagen- and hyaluronic acid-based hydrogel mediated with gallic acid and dopamine for wound repair. Carbohydr Polym 2023; 320:121231. [PMID: 37659818 DOI: 10.1016/j.carbpol.2023.121231] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/13/2023] [Accepted: 07/21/2023] [Indexed: 09/04/2023]
Abstract
Injectable self-healing hydrogels with antioxidation are required in wound dressings. Because oxidative damage caused by excessive reactive oxygen species (ROS) is a common issue associated with chronic non-healing wounds. Here, collagen (COL) - and hyaluronic acid (HA)-based hydrogel with antioxidant and injectable self-healing mediated with gallic acid (GA) and dopamine (DA) offers unique advantages for wound repair. The hydrogel is constructed by COL-grafted GA (CG), HA-grafted DA (HD) and γ-poly(glutamic acid) (γ-PGA) coupled with 3-aminophenylboric acid (APBA) via the dynamic boronic ester bonds. Rheological measurements and direct visual observation demonstrated the hydrogel's desirable injectability and self-healing properties. Additionally, the hydrogel exhibits tissue adhesion properties. Biocompatibility and cell migration tests showed that the hydrogel promotes cell proliferation and migration. In vitro, antioxidant and intracellular free radical scavenging assays confirmed the hydrogel's antioxidant property and ability to scavenge excess ROS. In vivo wound healing studies have demonstrated that hydrogel can promote angiogenesis, inhibit inflammation, and promote collagen fiber deposition to accelerate wound healing.
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Affiliation(s)
- Changkai Yang
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, PR China; National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, PR China
| | - Yuanzhi Zhang
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, PR China; National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, PR China
| | - Xiaoxia Zhang
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, PR China; National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, PR China
| | - Pingping Tang
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, PR China; National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, PR China
| | - Tingting Zheng
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, PR China; National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, PR China
| | - Ruimin Ran
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, PR China; National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, PR China
| | - Guoying Li
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, PR China; National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, PR China.
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Kashyap MP, Mishra B, Sinha R, Jin L, Kumar N, Goliwas KF, Deshane J, Elewski BE, Elmets CA, Athar M, Shahid Mukhtar M, Raman C. NK and NKT cells in the pathogenesis of Hidradenitis suppurativa: Novel therapeutic strategy through targeting of CD2. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.31.565057. [PMID: 37961206 PMCID: PMC10634971 DOI: 10.1101/2023.10.31.565057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Hidradenitis suppurativa (HS) is a chronic debilitating inflammatory skin disease with poorly understood pathogenesis. Single-cell RNAseq analysis of HS lesional and healthy individual skins revealed that NKT and NK cell populations were greatly expanded in HS, and they expressed elevated CD2, an activation receptor. Immunohistochemistry analyses confirmed significantly expanded numbers of CD2+ cells distributed throughout HS lesional tissue, and many co-expressed the NK marker, CD56. While CD4+ T cells were expanded in HS, CD8 T cells were rare. CD20+ B cells in HS were localized within tertiary follicle like structures. Immunofluorescence microscopy showed that NK cells (CD2 + CD56 dim ) expressing perforin, granzymes A and B were enriched within the hyperplastic follicular epidermis and tunnels of HS and juxtaposed with apoptotic cells. In contrast, NKT cells (CD2 + CD3 + CD56 bright ) primarily expressed granzyme A and were associated with α-SMA expressing fibroblasts within the fibrotic regions of the hypodermis. Keratinocytes and fibroblasts expressed high levels of CD58 (CD2 ligand) and they interacted with CD2 expressing NKT and NK cells. The NKT/NK maturation and activating cytokines, IL-12, IL-15 and IL-18, were significantly elevated in HS. Inhibition of cognate CD2-CD58 interaction with blocking anti-CD2 mAb in HS skin organotypic cultures resulted in a profound reduction of the inflammatory gene signature and secretion of inflammatory cytokines and chemokines in the culture supernate. In summary, we show that a cellular network of heterogenous NKT and NK cell populations drives inflammation, tunnel formation and fibrosis in the pathogenesis of HS. Furthermore, CD2 blockade is a viable immunotherapeutic approach for the management of HS.
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Taivanbat B, Yamazaki S, Nasanbat B, Uchiyama A, Amalia SN, Nasan-Ochir M, Inoue Y, Ishikawa M, Kosaka K, Sekiguchi A, Ogino S, Yokoyama Y, Torii R, Hosoi M, Shibasaki K, Motegi SI. Transient receptor potential vanilloid 4 promotes cutaneous wound healing by regulating keratinocytes and fibroblasts migration and collagen production in fibroblasts in a mouse model. J Dermatol Sci 2023; 112:54-62. [PMID: 37839930 DOI: 10.1016/j.jdermsci.2023.10.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 08/29/2023] [Accepted: 10/09/2023] [Indexed: 10/17/2023]
Abstract
BACKGROUND Transient receptor potential vanilloid 4 (TRPV4), a cation ion channel, is expressed in different cells, and it regulates the development of different diseases. We recently found a high TRPV4 expression in the wounded skin area. However, the role of TRPV4 in cutaneous wound healing is unknown. OBJECTIVE To investigate the role of TRPV4 in cutaneous wound healing in a mouse model. METHODS Skin wound healing experiment and histopathological studies were performed between WT and TRPV4 KO mice. The effect of TRPV4 antagonist and agonist on cell migration, proliferation, and differentiation were examined in vitro. RESULTS TRPV4 expression was enhanced in wounded area in the skin. TRPV4 KO mice had impaired cutaneous wound healing compared with the WT mice. Further, they had significantly suppressed re-epithelialization and formation of granulation tissue, amount of collagen deposition, and number of α-SMA-positive myofibroblasts in skin wounds. qPCR revealed that the KO mice had decreased mRNA expression of COL1A1 and ACTA2 in skin wounds. In vitro, treatment with selective TRPV4 antagonist suppressed migrating capacity, scratch stimulation enhanced the expression of phospho-ERK in keratinocytes, and TGF-β stimulation enhanced the mRNA expression of COL1A1 and ACTA2 in fibroblasts. Selective TRPV4 agonist suppressed cell migration in keratinocytes, and did not enhance proliferation and migration, but promoted differentiation in fibroblasts. CONCLUSION TRPV4 mediates keratinocytes and fibroblasts migration and increases collagen deposition in the wound area, thereby promoting cutaneous wound healing.
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Affiliation(s)
- Bayarmaa Taivanbat
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Sahori Yamazaki
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Bolor Nasanbat
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Akihiko Uchiyama
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan.
| | - Syahla Nisaa Amalia
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | | | - Yuta Inoue
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Mai Ishikawa
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Keiji Kosaka
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Akiko Sekiguchi
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Sachiko Ogino
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Yoko Yokoyama
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Ryoko Torii
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Mari Hosoi
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Koji Shibasaki
- Laboratory of Neurochemistry, Department of Nutrition Science, University of Nagasaki, Nagasaki, Japan
| | - Sei-Ichiro Motegi
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
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Jin X, Ou Z, Zhang G, Shi R, Yang J, Liu W, Luo G, Deng J, Wang W. A CO-mediated photothermal therapy to kill drug-resistant bacteria and minimize thermal injury for infected diabetic wound healing. Biomater Sci 2023; 11:6236-6251. [PMID: 37531204 DOI: 10.1039/d3bm00774j] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
With an increasing proportion of drug-resistant bacteria, photothermal therapy (PTT) is a promising alternative to antibiotic treatment for infected diabetic skin ulcers. However, the inevitable thermal damage to the tissues restricts its clinical practice. Carbon monoxide (CO), as a bioactive gas molecule, can selectively inhibit bacterial growth and promote tissue regeneration, which may be coordinated with PTT for drug-resistant bacteria killing and tissue protection. Herein, a CO-mediated PTT agent (CO@mPDA) was engineered by loading manganese carbonyl groups into mesoporous polydopamine (mPDA) nanoparticles via coordination interactions between the metal center and a catechol group. Compared to the traditional PTT, the CO-mediated PTT increases the inhibition ratio of the drug-resistant bacteria both in vitro and in diabetic wound beds by selectively inhibiting the co-chaperone of the heat shock protein 90 kDa (Hsp90), and lowers the heat resistance of the bacteria rather than the mammalian tissues. Meanwhile, the tissue-protective proteins, such as Hsp90 and vimentin (Vim), are upregulated via the WNT and PI3K-Akt pathways to reduce thermal injury, especially with a laser with a high-power density. The CO-mediated PTT unified the bacterial killing with tissue protection, which offers a promising concept to improve PTT efficiency and minimize the side-effects of PTT when treating infected skin wounds.
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Affiliation(s)
- Xin Jin
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin, University, Tianjin 300350, China
| | - Zelin Ou
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China.
- Institute of Burn Research, State Key Lab of Trauma, Burn, and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Guowei Zhang
- Institute of Burn Research, State Key Lab of Trauma, Burn, and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Rong Shi
- Institute of Burn Research, State Key Lab of Trauma, Burn, and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Jumin Yang
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin, University, Tianjin 300350, China
| | - Wenguang Liu
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin, University, Tianjin 300350, China
| | - Gaoxing Luo
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China.
- Institute of Burn Research, State Key Lab of Trauma, Burn, and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Jun Deng
- Institute of Burn Research, State Key Lab of Trauma, Burn, and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Wei Wang
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, Zhejiang 311215, China.
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
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Du J, Fan L, Razal JM, Chen S, Zhang H, Yang H, Li H, Li J. Strontium-doped mesoporous bioglass nanoparticles for enhanced wound healing with rapid vascularization. J Mater Chem B 2023; 11:7364-7377. [PMID: 37431606 DOI: 10.1039/d3tb01256e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
Tissue engineered skin and its substitutes have a promising future in wound healing. However, enabling fast formation of blood vessels during the wound healing process is still a huge challenge to the currently available wound substitutes. In this work, active mesoporous bioglass nanoparticles with a high specific surface area and doped with strontium (Sr) were fabricated for rapid microvascularization and wound healing. The as-prepared bioglass nanoparticles with Sr ions significantly promoted the proliferation of fibroblasts and microvascularization of human umbilical vein endothelial cells in vitro. Silk fibroin sponges encapsulating the nanoparticles accelerated wound healing by promoting the formation of blood vessels and epithelium in vivo. This work provides a strategy for the design and development of active biomaterials for enhancing wound healing by rapid vascularization and epithelial reconstruction.
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Affiliation(s)
- Juan Du
- Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia.
| | - Linpeng Fan
- Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia.
| | - Joselito M Razal
- Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia.
| | - Sihao Chen
- School of Chemistry and Chemical Engineering, Multidisciplinary Center for Advanced Materials, Shanghai Engineering Research Center for Pharmaceutical Intelligent Equipment, Shanghai University of Engineering Science, Shanghai 201620, P. R. China.
| | - Hongmei Zhang
- School of Chemistry and Chemical Engineering, Multidisciplinary Center for Advanced Materials, Shanghai Engineering Research Center for Pharmaceutical Intelligent Equipment, Shanghai University of Engineering Science, Shanghai 201620, P. R. China.
| | - Hongjun Yang
- Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan 430200, P. R. China
| | - Haiyan Li
- Chemical and Environment Engineering Department, School of Engineering, STEM College, RMIT University, Melbourne, VIC 3001, Australia
| | - Jingliang Li
- Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia.
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Xia W, Wang Q, Lin S, Wang Y, Zhang J, Wang H, Yang X, Hu Y, Liang H, Lu Y, Zhu Z, Liu D. A high-salt diet promotes hypertrophic scarring through TRPC3-mediated mitochondrial Ca 2+ homeostasis dysfunction. Heliyon 2023; 9:e18629. [PMID: 37588604 PMCID: PMC10425910 DOI: 10.1016/j.heliyon.2023.e18629] [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: 05/23/2023] [Revised: 07/13/2023] [Accepted: 07/21/2023] [Indexed: 08/18/2023] Open
Abstract
Diet High in salt content have been associated with cardiovascular disease and chronic inflammation. We recently demonstrated that transient receptor potential canonical 3 (TRPC3) channels regulate myofibroblast transdifferentiation in hypertrophic scars. Here, we examined how high salt activation of TRPC3 participates in hypertrophic scarring during wound healing. In vitro, we confirmed that high salt increased the TRPC3 protein expression and the marker of myofibroblast alpha smooth muscle actin (α-SMA) in wild-type mice (WT) primary cultured dermal fibroblasts but not Trpc3-/- mice. Activation of TRPC3 by high salt elevated cytosolic Ca2+ influx and mitochondrial Ca2+ uptake in dermal fibroblasts in a TRPC3-dependent manner. High salt activation of TRPC3 enhanced mitochondrial respiratory dysfunction and excessive ROS production by inhibiting pyruvate dehydrogenase action, that activated ROS-triggered Ca2+ influx and the Rho kinase/MLC pathway in WT mice but not Trpc3-/- mice. In vivo, a persistent high-salt diet promoted myofibroblast transdifferentiation and collagen deposition in a TRPC3-dependent manner. Therefore, this study demonstrates that high salt enhances myofibroblast transdifferentiation and promotes hypertrophic scar formation through enhanced mitochondrial Ca2+ homeostasis, which activates the ROS-mediated pMLC/pMYPT1 pathway. TRPC3 deficiency antagonizes high salt diet-induced hypertrophic scarring. TRPC3 may be a novel target for hypertrophic scarring during wound healing.
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Affiliation(s)
- Weijie Xia
- Department of Plastic & Cosmetic Surgery, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing 400042, PR China
| | - Qianran Wang
- Department of Hypertension and Endocrinology, Center for Hypertension and Metabolic Diseases, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, PR China
| | - Shaoyang Lin
- Department of Hypertension and Endocrinology, Center for Hypertension and Metabolic Diseases, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, PR China
| | - Yuanyuan Wang
- Department of Plastic & Cosmetic Surgery, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing 400042, PR China
| | - Junbo Zhang
- Department of Plastic & Cosmetic Surgery, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing 400042, PR China
| | - Hailin Wang
- Department of Plastic & Cosmetic Surgery, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing 400042, PR China
| | - Xia Yang
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, PR China
| | - Yingru Hu
- Department of Hypertension and Endocrinology, Center for Hypertension and Metabolic Diseases, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, PR China
| | - Huaping Liang
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, PR China
| | - Yuangang Lu
- Department of Plastic & Cosmetic Surgery, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing 400042, PR China
| | - Zhiming Zhu
- Department of Hypertension and Endocrinology, Center for Hypertension and Metabolic Diseases, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, PR China
| | - Daoyan Liu
- Department of Hypertension and Endocrinology, Center for Hypertension and Metabolic Diseases, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, PR China
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing 400042, PR China
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Chen P, Tang S, Li M, Wang D, Chen C, Qiu Y, Fang Z, Zhang H, Gao H, Weng H, Hu K, Lin J, Lin Q, Tan Y, Li S, Chen J, Chen L, Chen X. Single-Cell and Spatial Transcriptomics Decodes Wharton's Jelly-Derived Mesenchymal Stem Cells Heterogeneity and a Subpopulation with Wound Repair Signatures. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2204786. [PMID: 36504438 PMCID: PMC9896049 DOI: 10.1002/advs.202204786] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 11/18/2022] [Indexed: 06/17/2023]
Abstract
The highly heterogeneous characteristics of Wharton's jelly mesenchymal stem cells (WJ-MSCs) may be responsible for the poor clinical outcomes and poor reproducibility of treatments based on WJ-MSCs. Exploration of WJ-MSC heterogeneity with multimodal single-cell technologies will aid in establishing accurate MSC subtyping and developing screening protocols for dominant functional subpopulations. Here, the characteristics of WJ-MSCs are systematically analyzed by single cell and spatial transcriptome sequencing. Single-cell transcriptomics analysis identifies four WJ-MSC subpopulations, namely proliferative_MSCs, niche-supporting_MSCs, metabolism-related_MSCs and biofunctional-type_MSCs. Furthermore, the transcriptome, cellular heterogeneity, and cell-state trajectories of these subpopulations are characterized. Intriguingly, the biofunctional-type MSCs (marked by S100A9, CD29, and CD142) selected in this study exhibit promising wound repair properties in vitro and in vivo. Finally, by integrating omics data, it has been found that the S100A9+ CD29+ CD142+ subpopulation is more enriched in the fetal segment of the umbilical cord, suggesting that this subpopulation deriving from the fetal segment may have potential for developing into an ideal therapeutic agent for wound healing. Overall, the presented study comprehensively maps the heterogeneity of WJ-MSCs and provides an essential resource for future development of WJ-MSC-based drugs.
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Reoxygenation Modulates the Adverse Effects of Hypoxia on Wound Repair. Int J Mol Sci 2022; 23:ijms232415832. [PMID: 36555485 PMCID: PMC9781139 DOI: 10.3390/ijms232415832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 11/30/2022] [Accepted: 12/06/2022] [Indexed: 12/15/2022] Open
Abstract
Hypoxia is a major stressor and a prominent feature of pathological conditions, such as bacterial infections, inflammation, wounds, and cardiovascular defects. In this study, we investigated whether reoxygenation has a protective effect against hypoxia-induced acute injury and burn using the C57BL/6 mouse model. C57BL/6 mice were exposed to hypoxia and treated with both acute and burn injuries and were in hypoxia until wound healing. Next, C57BL/6 mice were exposed to hypoxia for three days and then transferred to normoxic conditions for reoxygenation until wound healing. Finally, skin wound tissue was collected to analyze healing-related markers, such as inflammation, vascularization, and collagen. Hypoxia significantly increased inflammatory cell infiltration and decreased vascular and collagen production, and reoxygenation notably attenuated hypoxia-induced infiltration of inflammatory cells, upregulation of pro-inflammatory cytokine levels (IL-6 and TNF-α) in the wound, and remission of inflammation in the wound. Immunofluorescence analysis showed that reoxygenation increased the expression of the angiogenic factor α-SMA and decreased ROS expression in burn tissues compared to hypoxia-treated animals. Moreover, further analysis by qPCR showed that reoxygenation could alleviate the expression of hypoxic-induced inflammatory markers (IL-6 and TNF), increase angiogenesis (SMA) and collagen synthesis (Col I), and thus promote wound healing. It is suggested that oxygen can be further evaluated in combination with oxygen-releasing materials as a supplementary therapy for patients with chronic hypoxic wounds.
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Lyu Y, Ge Y. Toward Elucidating Epigenetic and Metabolic Regulation of Stem Cell Lineage Plasticity in Skin Aging. Front Cell Dev Biol 2022; 10:903904. [PMID: 35663405 PMCID: PMC9160930 DOI: 10.3389/fcell.2022.903904] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 04/21/2022] [Indexed: 11/13/2022] Open
Abstract
Skin is the largest organ in human body, harboring a plethora of cell types and serving as the organismal barrier. Skin aging such as wrinkling and hair graying is graphically pronounced, and the molecular mechanisms behind these phenotypic manifestations are beginning to unfold. As in many other organs and tissues, epigenetic and metabolic deregulations have emerged as key aging drivers. Particularly in the context of the skin epithelium, the epigenome and metabolome coordinately shape lineage plasticity and orchestrate stem cell function during aging. Our review discusses recent studies that proposed molecular mechanisms that drive the degeneration of hair follicles, a major appendage of the skin. By focusing on skin while comparing it to model organisms and adult stem cells of other tissues, we summarize literature on genotoxic stress, nutritional sensing, metabolic rewiring, mitochondrial activity, and epigenetic regulations of stem cell plasticity. Finally, we speculate about the rejuvenation potential of rate-limiting upstream signals during aging and the dominant role of the tissue microenvironment in dictating aged epithelial stem cell function.
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Affiliation(s)
| | - Yejing Ge
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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44
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Qian H, Shan Y, Gong R, Lin D, Zhang M, Wang C, Wang L. Fibroblasts in Scar Formation: Biology and Clinical Translation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:4586569. [PMID: 35602101 PMCID: PMC9119755 DOI: 10.1155/2022/4586569] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/20/2022] [Accepted: 04/28/2022] [Indexed: 11/17/2022]
Abstract
Scarring, which develops due to fibroblast activation and excessive extracellular matrix deposition, can cause physical, psychological, and cosmetic problems. Fibroblasts are the main type of connective tissue cells and play important roles in wound healing. However, the underlying mechanisms of fibroblast in reaching scarless wound healing require more exploration. Herein, we systematically reviewed how fibroblasts behave in response to skin injuries, as well as their functions in regeneration and scar formation. Several biocompatible materials, including hydrogels and nanoparticles, were also suggested. Moreover, factors that concern transformation from fibroblasts into cancer-associated fibroblasts are mentioned due to a tight association between scar formation and primary skin cancers. These findings will help us better understand skin fibrotic pathogenesis, as well as provide potential targets for scarless wound healing therapies.
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Affiliation(s)
- Huan Qian
- Department of Plastic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yihan Shan
- Wenzhou Medical University, Wenzhou, China
| | | | - Danfeng Lin
- Department of Breast Surgery, The First Affifiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Mengwen Zhang
- Department of Plastic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Chen Wang
- Department of Plastic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Lu Wang
- Starbody plastic surgery Clinic, Hangzhou, China
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