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Lu H, Mu Q, Ku W, Zheng Y, Yi P, Lin L, Li P, Wang B, Wu J, Yu D, Zhao W. Functional extracellular vesicles from SHEDs combined with gelatin methacryloyl promote the odontogenic differentiation of DPSCs for pulp regeneration. J Nanobiotechnology 2024; 22:265. [PMID: 38760763 PMCID: PMC11102175 DOI: 10.1186/s12951-024-02542-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 05/09/2024] [Indexed: 05/19/2024] Open
Abstract
BACKGROUND Pulp regeneration is a novel approach for the treatment of immature permanent teeth with pulp necrosis. This technique includes the combination of stem cells, scaffolds, and growth factors. Recently, stem cell-derived extracellular vesicles (EVs) have emerged as a new methodology for pulp regeneration. Emerging evidence has proven that preconditioning is an effective scheme to modify EVs for better therapeutic potency. Meanwhile, proper scaffolding is of great significance to protect EVs from rapid clearance and destruction. This investigation aims to fabricate an injectable hydrogel loaded with EVs from pre-differentiated stem cells from human exfoliated deciduous teeth (SHEDs) and examine their effects on pulp regeneration. RESULTS We successfully employed the odontogenic induction medium (OM) of SHEDs to generate functional EV (OM-EV). The OM-EV at a concentration of 20 µg/mL was demonstrated to promote the proliferation and migration of dental pulp stem cells (DPSCs). The results revealed that OM-EV has a better potential to promote odontogenic differentiation of DPSCs than common EVs (CM-EV) in vitro through Alizarin red phalloidin, alkaline phosphatase staining, and assessment of the expression of odontogenic-related markers. High-throughput sequencing suggests that the superior effects of OM-EV may be attributed to activation of the AMPK/mTOR pathway. Simultaneously, we prepared a photocrosslinkable gelatin methacryloyl (GelMA) to construct an OM-EV-encapsulated hydrogel. The hydrogel exhibited sustained release of OM-EV and good biocompatibility for DPSCs. The released OM-EV from the hydrogel could be internalized by DPSCs, thereby enhancing their survival and migration. In tooth root slices that were subcutaneously transplanted in nude mice, the OM-EV-encapsulated hydrogel was found to facilitate dentinogenesis. After 8 weeks, there was more formation of mineralized tissue, as well as higher levels of dentin sialophosphoprotein (DSPP) and dentin matrix protein-1 (DMP-1). CONCLUSIONS The effects of EV can be substantially enhanced by preconditioning of SHEDs. The functional EVs from SHEDs combined with GelMA are capable of effectively promoting dentinogenesis through upregulating the odontogenic differentiation of DPSCs, which provides a promising therapeutic approach for pulp regeneration.
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Affiliation(s)
- Hui Lu
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Qing Mu
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Weili Ku
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Yexin Zheng
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Ping Yi
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Ling Lin
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Pei Li
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Boqun Wang
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Jie Wu
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Dongsheng Yu
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China.
| | - Wei Zhao
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China.
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Huang S, Zeng Y, Guo Q, Zou T, Yin ZQ. Small extracellular vesicles of organoid-derived human retinal stem cells remodel Müller cell fate via miRNA: A novel remedy for retinal degeneration. J Control Release 2024; 370:405-420. [PMID: 38663753 DOI: 10.1016/j.jconrel.2024.04.036] [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: 11/19/2023] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/08/2024]
Abstract
Remodeling retinal Müller glial fate, including gliosis inhibition and pro-reprogramming, represents a crucial avenue for treating degenerative retinal diseases. Stem cell transplantation exerts effects on modulating retinal Müller glial fate. However, the optimized stem cell products and the underlying therapeutic mechanisms need to be investigated. In the present study, we found that retinal progenitor cells from human embryonic stem cell-derived retinal organoids (hERO-RPCs) transferred extracellular vesicles (EVs) into Müller cells following subretinal transplantation into RCS rats. Small EVs from hERO-RPCs (hERO-RPC-sEVs) were collected and were found to delay photoreceptor degeneration and protect retinal function in RCS rats. hERO-RPC-sEVs were taken up by Müller cells both in vivo and in vitro, and inhibited gliosis while promoting early dedifferentiation of Müller cells. We further explored the miRNA profiles of hERO-RPC-sEVs, which suggested a functional signature associated with neuroprotection and development, as well as the regulation of stem cell and glial fate. Mechanistically, hERO-RPC-sEVs might regulate the fate of Müller cells by miRNA-mediated nuclear factor I transcription factors B (NFIB) downregulation. Collectively, our findings offer novel mechanistic insights into stem cell therapy and promote the development of EV-centered therapeutic strategies.
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Affiliation(s)
- Shudong Huang
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China; Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing 400038, China
| | - Yuxiao Zeng
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China; Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing 400038, China
| | - Qiang Guo
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China; Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing 400038, China
| | - Ting Zou
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China; Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing 400038, China; Department of Ophthalmology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China.
| | - Zheng Qin Yin
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China; Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing 400038, China.
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3
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Tan S, Liu Z, Cong M, Zhong X, Mao Y, Fan M, Jiao F, Qiao H. Dandelion-derived vesicles-laden hydrogel dressings capable of neutralizing Staphylococcus aureus exotoxins for the care of invasive wounds. J Control Release 2024; 368:355-371. [PMID: 38432468 DOI: 10.1016/j.jconrel.2024.02.045] [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: 11/05/2023] [Revised: 02/01/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
Delayed wound healing caused by bacterial infection remains a major challenge in clinical treatment. Exotoxins incorporated in bacterial extracellular vesicles play a key role as the disease-causing virulence factors. Safe and specific antivirulence agents are expected to be developed as an effective anti-bacterial infection strategy, instead of single antibiotic therapy. Plant-derived extracellular vesicle-like nanoparticles have emerged as promising therapeutic agents for skin diseases, but the elucidations of specific mechanisms of action and clinical transformation still need to be advanced. Here, dandelion-derived extracellular vesicle-like nanoparticles (TH-EVNs) are isolated and exert antivirulence activity through specifically binding to Staphylococcus aureus (S. aureus) exotoxins, thereby protecting the host cell from attack. The neutralization of TH-EVNs against exotoxins has considerable binding force and stability, showing complete detoxification effect in vivo. Then gelatin methacryloyl hydrogel is developed as TH-EVNs-loaded dressing for S. aureus exotoxin-invasive wounds. Hydrogel dressings demonstrate good physical and mechanical properties, thus achieving wound retention and controlled release of TH-EVNs, in addition to promoting cell proliferation and migration. In vivo results show accelerated re-epithelialization, promotion of collagen maturity and reduction of inflammation after treatment. Collectively, the developed TH-EVNs-laden hydrogel dressings provide a potential therapeutic approach for S. aureus exotoxin- associated trauma.
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Affiliation(s)
- Shenyu Tan
- Jiangsu Engineering Research Center for Efficient Delivery System of TCM, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zhuoya Liu
- Jiangsu Engineering Research Center for Efficient Delivery System of TCM, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Minghui Cong
- Jiangsu Engineering Research Center for Efficient Delivery System of TCM, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xiaoqing Zhong
- Jiangsu Engineering Research Center for Efficient Delivery System of TCM, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yinping Mao
- Jiangsu Engineering Research Center for Efficient Delivery System of TCM, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Mingjie Fan
- Jiangsu Engineering Research Center for Efficient Delivery System of TCM, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Fangwen Jiao
- Department of Pathogen Biology, School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Hongzhi Qiao
- Jiangsu Engineering Research Center for Efficient Delivery System of TCM, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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Zheng Y, Pan C, Xu P, Liu K. Hydrogel-mediated extracellular vesicles for enhanced wound healing: the latest progress, and their prospects for 3D bioprinting. J Nanobiotechnology 2024; 22:57. [PMID: 38341585 PMCID: PMC10858484 DOI: 10.1186/s12951-024-02315-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
Extracellular vesicles have shown promising tissue recovery-promoting effects, making them increasingly sought-after for their therapeutic potential in wound treatment. However, traditional extracellular vesicle applications suffer from limitations such as rapid degradation and short maintenance during wound administration. To address these challenges, a growing body of research highlights the role of hydrogels as effective carriers for sustained extracellular vesicle release, thereby facilitating wound healing. The combination of extracellular vesicles with hydrogels and the development of 3D bioprinting create composite hydrogel systems boasting excellent mechanical properties and biological activity, presenting a novel approach to wound healing and skin dressing. This comprehensive review explores the remarkable mechanical properties of hydrogels, specifically suited for loading extracellular vesicles. We delve into the diverse sources of extracellular vesicles and hydrogels, analyzing their integration within composite hydrogel formulations for wound treatment. Different composite methods as well as 3D bioprinting, adapted to varying conditions and construction strategies, are examined for their roles in promoting wound healing. The results highlight the potential of extracellular vesicle-laden hydrogels as advanced therapeutic tools in the field of wound treatment, offering both mechanical support and bioactive functions. By providing an in-depth examination of the various roles that these composite hydrogels can play in wound healing, this review sheds light on the promising directions for further research and development. Finally, we address the challenges associated with the application of composite hydrogels, along with emerging trends of 3D bioprinting in this domain. The discussion covers issues such as scalability, regulatory considerations, and the translation of this technology into practical clinical settings. In conclusion, this review underlines the significant contributions of hydrogel-mediated extracellular vesicle therapy to the field of 3D bioprinting and wound healing and tissue regeneration. It serves as a valuable resource for researchers and practitioners alike, fostering a deeper understanding of the potential benefits, applications, and challenges involved in utilizing composite hydrogels for wound treatment.
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Affiliation(s)
- Yi Zheng
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, China
| | - Chuqiao Pan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, China
| | - Peng Xu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, China.
| | - Kai Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, China.
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Li Z, Zhang B, Shang J, Wang Y, Jia L, She X, Xu X, Zhang D, Guo J, Zhang F. Diabetic and nondiabetic BMSC-derived exosomes affect bone regeneration via regulating miR-17-5p/SMAD7 axis. Int Immunopharmacol 2023; 125:111190. [PMID: 37976598 DOI: 10.1016/j.intimp.2023.111190] [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: 11/03/2023] [Accepted: 11/03/2023] [Indexed: 11/19/2023]
Abstract
Diabetic bone disease (DBD) is a complication of diabetes mellitus (DM) and is characterized by impaired osteocyte function and delayed bone remodeling due to high blood glucose levels and sustained release of inflammatory factors. Recent studies show that the regulation of osteoblasts (OBs) by bone marrow stromal cells (BMSCs) is an important mechanism in alleviating DBD and that exosomes are recognized as the key medium. Mesenchymal stem cell-derived exosome (MSC-Exos) therapy is a promising approach to facilitate tissue repair. However, the influence of exosomes from diabetic conditioned BMSCs on OBs and bone regeneration, as well as the underlying mechanism, are still elusive. Here, we used high-glucose medium to mimic diabetic conditions and normal-glucose medium as control to mimic nondiabetic conditions in vitro and found that microRNA-17 (miR-17) was downregulated in diabetic-conditioned BMSC-derived exosomes (HG-Exos), HG-Exo-co-cultured osteoblasts, and the skull of rats with type 2 diabetes mellitus (T2DM). Further experiment concluded that nondiabetic conditioned BMSC-Exos (NG-Exos) promoted the osteogenesis of OBs and bone regeneration of rats with T2DM via upregulation of miR-17. Compare with NG-Exos, HG-Exos impeded osteogenesis of OBs in vitro and bone regeneration of rats in vivo by downregulation of miR-17. Moreover, miR-17 promoted bone regeneration by targeting SMAD7, which was further proved to have a negative effect on osteogenesis. Taken together, nondiabetic BMSC-derived exosomes greatly foster bone regeneration, whereas diabetic BMSC-derived exosomes undermine the promotion effect of MSC-Exos by regulating the miR-17/SMAD7 axis. These findings provide support for the miR-17-5p/SMAD7 axis as a promising therapeutic target to treat DBD.
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Affiliation(s)
- Zechuan Li
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Bing Zhang
- Department of Health Care, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Jiaming Shang
- Department of Prosthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Yanan Wang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Linglu Jia
- Department of Prosthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Xiao She
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Xin Xu
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Dongjiao Zhang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China
| | - Jing Guo
- Engineering Laboratory for Biomaterials and Tissue Regeneration, Ningbo Stomatology Hospital, No. 435 Xinxing Road, Ningbo 315042, Zhejiang, China; Savaid Stomatology School of Hangzhou Medical College, No. 1 Pinghai Road, Hangzhou 310051, Zhejiang, China
| | - Fan Zhang
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, 250012 Jinan, Shandong, China.
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Yang J, Zhang X, Wang G, Ma S, Yu Y, Liao C, Wang Z, Liang C, Li M, Tian W, Liao L. ApoSEVs-Mediated Modulation of Versatile Target Cells Promotes Diabetic Wound Healing: Unveiling a Promising Strategy. Int J Nanomedicine 2023; 18:6955-6977. [PMID: 38026535 PMCID: PMC10676647 DOI: 10.2147/ijn.s436350] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/09/2023] [Indexed: 12/01/2023] Open
Abstract
Background Diabetic chronic wounds present a formidable challenge in clinical management, lacking effective treatment options. Mesenchymal stem cell (MSC) transplantation has emerged as a promising therapy for tissue repair and regeneration. However, transplanted MSCs often undergo rapid apoptosis, giving rise to heterogeneous extracellular vesicles (EVs), including apoptotic bodies (apoBDs) and apoptotic small extracellular vesicles (apoSEVs). The potential stimulatory role of these EVs in diabetic wound healing remains unknown. Methods In this study, we investigated the effects of apoSEVs derived from adipose-derived mesenchymal/stromal cells (ADSCs) on the recovery of diabetic wounds by modulating the function of versatile target cells. First, we characterized the apoSEVs and apoBDs derived from apoptotic ADSCs. Subsequently, we evaluated the effects of apoSEVs and apoBDs on macrophages, endothelial cells, and fibroblasts, three essential cell types in wound healing, under high-glucose conditions. Furthermore, we developed a gelatin methacryloyl (GelMA) hydrogel for the sustained release of apoSEVs and investigated its therapeutic effects on wound healing in type 2 diabetic mice in vivo. Results apoSEVs facilitated the polarization of M1 phenotype macrophages to M2 phenotype, promoted proliferation, migration, and tube formation of endothelial cells, and enhanced fibroblast proliferation and migration. However, apoBDs failed to improve the function of endothelial cells and fibroblasts. In vivo, the apoSEVs-loaded GelMA effectively promoted wound healing by facilitating collagen fiber deposition, angiogenesis, and immune regulation. Conclusion Our study elucidates the beneficial effects of apoSEVs on wound recovery in diabetes and introduces a novel strategy for diabetic wound treatment based on apoSEVs.
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Affiliation(s)
- Jian Yang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Xuanhao Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Guanyu Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Shixing Ma
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Yejia Yu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Chengcheng Liao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Zhuo Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Cheng Liang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Maojiao Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Weidong Tian
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Li Liao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People’s Republic of China
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Xu H, Gao Z, Wang Z, Wu W, Li H, Liu Y, Jia S, Hao D, Zhu L. Electrospun PCL Nerve Conduit Filled with GelMA Gel for CNTF and IGF-1 Delivery in Promoting Sciatic Nerve Regeneration in Rat. ACS Biomater Sci Eng 2023; 9:6309-6321. [PMID: 37919884 DOI: 10.1021/acsbiomaterials.3c01048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
Neural tissue engineering is an essential strategy to repair long-segment peripheral nerve defects. Modification of the nerve conduit is an effective way to improve the local microenvironment of the injury site and facilitate nerve regeneration. However, the concurrent release of multiple growth cues that regulate the activity of Schwann cells and neurons remains a challenge. The present study involved the fabrication of a composite hydrogel, specifically methacrylate-anhydride gelatin-ciliary neurotrophic factor/insulin-like growth factor-1 (GelMA-CNTF/IGF-1), with the aim of providing a sustained release of CNTF and IGF-1. The GelMA-CNTF/IGF-1 hydrogels exhibited a swelling rate of 10.2% following a 24 h incubation in vitro. In vitro, GelMA hydrogels demonstrated a high degree of efficiency in the sustained release of CNTF and IGF-1 proteins, with a release rate of 85.9% for CNTF and 90.9% for IGF-1 shown at day 28. In addition, the GelMA-CNTF/IGF-1 composite hydrogel promoted the proliferation of Schwann cells and the production of nerve growth factor (NGF), connective tissue growth factor (CTGF), fibronectin, and laminin and also considerably promoted the axonal growth of neurons. Furthermore, GelMA-CNTF/IGF-1 hydrogels were loaded into PCL electrospun nerve conduits to repair 15 mm sciatic nerve defects in rats. In vivo studies indicated that PCL-GelMA-CNTF/IGF-1 could efficiently accelerate the regeneration of the rat sciatic nerve, promote the formation of the myelin sheath of new axons, promote the electrophysiological function of regenerated nerves, and eventually improve the recovery of motor function in rats. Overall, the PCL-GelMA-CNTF/IGF-1 scaffold presents an attractive new approach for generating an optimal therapeutic alternative for peripheral nerve restoration.
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Affiliation(s)
- Hailiang Xu
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
| | - Ziheng Gao
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
| | - Zhiyuan Wang
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
| | - Weidong Wu
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
| | - Hui Li
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
| | - Youjun Liu
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
| | - Shuaijun Jia
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
| | - Dingjun Hao
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
| | - Lei Zhu
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, Youyi East Road No.555, Beilin District, Xi'an, Shaanxi 710054, China
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8
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Amondarain M, Gallego I, Puras G, Saenz-Del-Burgo L, Luzzani C, Pedraz JL. The role of microfluidics and 3D-bioprinting in the future of exosome therapy. Trends Biotechnol 2023; 41:1343-1359. [PMID: 37302911 DOI: 10.1016/j.tibtech.2023.05.006] [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: 10/11/2022] [Revised: 04/28/2023] [Accepted: 05/18/2023] [Indexed: 06/13/2023]
Abstract
Exosome-based strategies constitute a promising tool for therapeutics, avoiding potential immunogenic and tumorigenic side-effects of cell therapies. However, the collection of a suitable exosome pool, and the need for high doses with conventional administration approaches, hamper their clinical translation. To overcome these challenges, versatile exosome collection strategies together with advanced delivery platforms may represent major progress in this field. Microfluidics enables large-scale gathering of both natural and synthetic exosomes for their implementation into bioinks, while 3D-bioprinting holds great promise in regenerative medicine with the use of exosome-loaded scaffolds that mimic the target tissue with controlled pharmacokinetics and pharmacodynamics. Hence, the combination of both strategies might become the key for the translation of exosome therapies to clinical practice.
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Affiliation(s)
- Mikele Amondarain
- CONICET - Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Laboratorio de Investigación Aplicada a Neurociencias (LIAN), Buenos Aires, Argentina
| | - Idoia Gallego
- Laboratory of Pharmaceutics, NanoBioCel Group, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, Vitoria-Gasteiz, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain.
| | - Gustavo Puras
- Laboratory of Pharmaceutics, NanoBioCel Group, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, Vitoria-Gasteiz, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain
| | - Laura Saenz-Del-Burgo
- Laboratory of Pharmaceutics, NanoBioCel Group, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, Vitoria-Gasteiz, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain
| | - Carlos Luzzani
- CONICET - Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Laboratorio de Investigación Aplicada a Neurociencias (LIAN), Buenos Aires, Argentina
| | - José Luis Pedraz
- Laboratory of Pharmaceutics, NanoBioCel Group, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, Vitoria-Gasteiz, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain.
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9
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Yan R, Chen H, Selaru FM. Extracellular Vesicles in Hepatocellular Carcinoma: Progress and Challenges in the Translation from the Laboratory to Clinic. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1599. [PMID: 37763719 PMCID: PMC10534795 DOI: 10.3390/medicina59091599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 08/27/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023]
Abstract
Extracellular vesicles (EVs) play critical roles in intercellular communication by transporting bioactive cargo to recipient cells. EVs have been implicated in a range of physiological and pathological processes, including tumor progression, metastasis, immune modulation, and drug resistance. The objective of this review is to present a thorough overview of recent studies focusing on EVs in hepatocellular carcinoma (HCC), with an emphasis on their potential utility as diagnostic biomarkers as well as therapeutic agents. Initially, we explore the utility of EVs as diagnostic biomarkers for HCC, followed by a discussion of their potential as carriers of therapeutic payloads. Additionally, we delve into the emerging field of therapeutic EVs for modulating tumor immune responses. Through this review, our ultimate aim is to provide a comprehensive understanding of the opportunities and challenges in the clinical translation of EV research in the domain of HCC.
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Affiliation(s)
- Rong Yan
- Department of Surgical Oncology, the First Affiliated Hospital, Xi’an Jiaotong University College of Medicine, Xi’an 710061, China
| | - Haiming Chen
- Division of Gastroenterology and Hepatology, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA;
| | - Florin M. Selaru
- Division of Gastroenterology and Hepatology, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA;
- Department of Oncology, Sidney Kimmel Cancer Center, Johns Hopkins University, Baltimore, MD 21224, USA
- The Institute for Nanobiotechnology, The Johns Hopkins University, Baltimore, MD 21231, USA
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10
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Cui S, Liu X, Liu Y, Hu W, Ma K, Huang Q, Chu Z, Tian L, Meng S, Su J, Zhang W, Li H, Fu X, Zhang C. Autophagosomes Defeat Ferroptosis by Decreasing Generation and Increasing Discharge of Free Fe 2+ in Skin Repair Cells to Accelerate Diabetic Wound Healing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300414. [PMID: 37387572 PMCID: PMC10477857 DOI: 10.1002/advs.202300414] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 05/29/2023] [Indexed: 07/01/2023]
Abstract
Ferroptosis plays an essential role in the development of diabetes and its complications, suggesting potential therapeutic strategies targeting ferroptosis. Secretory autophagosomes (SAPs) carrying cytoplasmic cargoes have been recognized as novel nano-warrior to defeat diseases. Here, it is hypothesized that SAPs derived from human umbilical vein endothelial cells (HUVECs) can restore the function of skin repair cells by inhibiting ferroptosis to promote diabetic wound healing. High glucose (HG)-caused ferroptosis in human dermal fibroblasts (HDFs) is observed in vitro, which results in impaired cellular function. SAPs successfully inhibit ferroptosis in HG-HDFs, thereby improving their proliferation and migration. Further research show that the inhibitory effect of SAPs on ferroptosis resulted from a decrease in endoplasmic reticulum (ER) stress-regulated generation of free ferrous ions (Fe2+ ) in HG-HDFs and an increase in exosome release to discharge free Fe2+ from HG-HDFs. Additionally, SAPs promote the proliferation, migration, and tube formation of HG-HUVECs. Then the SAPs are loaded into gelatin-methacryloyl (GelMA) hydrogels to fabricate functional wound dressings. The results demonstrate the therapeutic effect of Gel-SAPs on diabetic wounds by restoring the normal behavior of skin repair cells. These findings suggest a promising SAP-based strategy for the treatment of ferroptosis-associated diseases.
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Affiliation(s)
- Shengnan Cui
- Department of DermatologyChina Academy of Chinese Medical ScienceXiyuan HospitalBeijing100091China
| | - Xi Liu
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research DivisionThe 4th Medical Center of Chinese PLA General HospitalBeijing100048China
| | - Yong Liu
- Department of DermatologyShaanxi Provincial Hospital of Chinese MedicineXi'an710003China
| | - Wenzhi Hu
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research DivisionThe 4th Medical Center of Chinese PLA General HospitalBeijing100048China
| | - Kui Ma
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research DivisionThe 4th Medical Center of Chinese PLA General HospitalBeijing100048China
| | - Qilin Huang
- Department of the 4th Medical Center of Chinese PLA General HospitalTianjin Medical UniversityNo. 22, Qixiangtai Road, Heping DistrictTianjin300070China
| | - Ziqiang Chu
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research DivisionThe 4th Medical Center of Chinese PLA General HospitalBeijing100048China
- Department of the 1th Medical Center of Chinese PLA General HospitalChinese PLA Medical School28 Fuxing Road, Haidian DistrictBeijing100853China
| | - Lige Tian
- Department of the 4th Medical Center of Chinese PLA General HospitalTianjin Medical UniversityNo. 22, Qixiangtai Road, Heping DistrictTianjin300070China
| | - Sheng Meng
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research DivisionThe 4th Medical Center of Chinese PLA General HospitalBeijing100048China
| | - Jianlong Su
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research DivisionThe 4th Medical Center of Chinese PLA General HospitalBeijing100048China
| | - Wenhua Zhang
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research DivisionThe 4th Medical Center of Chinese PLA General HospitalBeijing100048China
| | - Haihong Li
- Department of Wound RepairInstitute of Wound Repair and Regeneration MedicineSouthern University of Science and Technology HospitalSouthern University of Science and Technology School of MedicineShenzhen518055China
| | - Xiaobing Fu
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research DivisionThe 4th Medical Center of Chinese PLA General HospitalBeijing100048China
- Department of the 1th Medical Center of Chinese PLA General HospitalChinese PLA Medical School28 Fuxing Road, Haidian DistrictBeijing100853China
- Research Unit of Trauma CareTissue Repair and RegenerationChinese Academy of Medical Sciences2019RU051, 51 Fucheng Road, Haidian DistrictBeijing100048China
- Beijing Key Research Laboratory of Skin InjuryRepair and Regeneration51 Fucheng Road, Haidian DistrictBeijing100048China
| | - Cuiping Zhang
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research DivisionThe 4th Medical Center of Chinese PLA General HospitalBeijing100048China
- Department of the 1th Medical Center of Chinese PLA General HospitalChinese PLA Medical School28 Fuxing Road, Haidian DistrictBeijing100853China
- Research Unit of Trauma CareTissue Repair and RegenerationChinese Academy of Medical Sciences2019RU051, 51 Fucheng Road, Haidian DistrictBeijing100048China
- Beijing Key Research Laboratory of Skin InjuryRepair and Regeneration51 Fucheng Road, Haidian DistrictBeijing100048China
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11
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Banerjee A, Lino M, Jesus C, Ribeiro Q, Abrunhosa A, Ferreira L. Imaging platforms to dissect the in vivo communication, biodistribution and controlled release of extracellular vesicles. J Control Release 2023; 360:549-563. [PMID: 37406818 DOI: 10.1016/j.jconrel.2023.06.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/21/2023] [Accepted: 06/29/2023] [Indexed: 07/07/2023]
Abstract
Extracellular vesicles (EVs) work as communication vehicles, allowing the exchange of bioactive molecules (microRNAs, mRNAs, proteins, etc) between neighbouring and distant cells in the organism. EVs are thus important players in several physiological and pathological processes. Thus, it is critical to understand their role in cellular/organ communication to fully evaluate their biological, diagnosis and therapeutic potential. In addition, recent studies have explored the controlled release of EVs for regenerative medicine applications and thus the evaluation of their release profile is important to correlate with biological activity. Here, we give a brief introduction about EV imaging platforms in terms of their sensitivity, penetration depth, cost, and operational simplicity, followed by a discussion of different EV labelling processes with their advantages and limitations. Next, we cover the relevance of these imaging platforms to dissect the tropism and biological role of endogenous EVs. We also cover the relevance of imaging platforms to monitor the accumulation of exogenous EVs and their potential cellular targets. Finally, we highlight the importance of imaging platforms to investigate the release profile of EVs from different controlled systems.
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Affiliation(s)
- Arnab Banerjee
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Miguel Lino
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Carlos Jesus
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal; Faculty of Medicine, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Quélia Ribeiro
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Antero Abrunhosa
- ICNAS/CIBIT - Institute for Nuclear Sciences Applied to Health/Coimbra Institute for Biomedical Imaging and Translational research, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Lino Ferreira
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal; Faculty of Medicine, University of Coimbra, 3004-504 Coimbra, Portugal.
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12
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Wang Y, Cao Z, Wei Q, Ma K, Hu W, Huang Q, Su J, Li H, Zhang C, Fu X. VH298-loaded extracellular vesicles released from gelatin methacryloyl hydrogel facilitate diabetic wound healing by HIF-1α-mediated enhancement of angiogenesis. Acta Biomater 2022; 147:342-355. [PMID: 35580827 DOI: 10.1016/j.actbio.2022.05.018] [Citation(s) in RCA: 82] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/30/2022] [Accepted: 05/10/2022] [Indexed: 02/07/2023]
Abstract
Endothelial malfunction is responsible for impaired angiogenesis in diabetic patients, thereby causing the delayed healing progress of diabetic wounds. Exosomes or extracellular vesicles (EVs) have emerged as potential therapeutic vectors carrying drug cargoes to diseased cells. In the present study, EVs were reported as a new treatment for diabetic wounds by delivering VH298 into endothelial cells. Firstly, EVs derived from epidermal stem cells (ESCs) were loaded with VH298 (VH-EVs), and the characteristics of VH-EVs were identified. VH-EVs showed promotive action on the function of human umbilical vein endothelial cells (HUVECs) in vitro by activating HIF-1α signaling pathway. VH-EVs were also found to have a therapeutic effect on wound healing and angiogenesis in vivo. We further fabricated gelatin methacryloyl (GelMA) hydrogel for sustained release of VH-EVs, which possessed high biocompatibility and proper mechanical properties. In diabetic mice, GelMA hydrogel containing VH-EVs (Gel-VH-EVs) effectively promoted wound healing by locally enhancing blood supply and angiogenesis. The underlying mechanism for enhanced angiogenesis was possibly associated with the activation of HIF-1α/VEGFA signaling pathway. Collectively, our findings suggest a promising EV-based strategy for the VH298 delivery to endothelial cells and provide a new bioactive dressing for diabetic wound treatment. STATEMENT OF SIGNIFICANCE: The angiogenic dysfunction is the main cause of diabetic wound unhealing. Extracellular vesicles (EVs) have been reported to be helpful but their efficacy is limited for angiogenesis in cutaneous regeneration. VH298 holds great promise to improve angiogenesis by stabilizing HIF-1α which is reported at low level in diabetic wounds. Here, we loaded EVs with VH298 (VH-EVs) to exert an on-target enhancement of proangiogenic capacity in diabetic wound. Then, we applied a photo-crosslinkable hydrogel, gelatin methacryloyl (GelMA) containing VH-EVs (Gel-VH-EVs) as a convenient biomaterial and an adaptable scaffold for sustained releasing VH-EVs. The results showed significant therapeutic effect of Gel-VH-EVs on skin defect repair. Our findings suggest a promising EVs-based drug delivery strategy and a new functional wound dressing for patients.
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Affiliation(s)
- Yaxi Wang
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Division and the 4th Medical Center of Chinese PLA General Hospital, Beijing, 100048, China; Chinese PLA Medical School, Beijing, 100853, China
| | - Zhen Cao
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, 100853, China
| | - Qian Wei
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Division and the 4th Medical Center of Chinese PLA General Hospital, Beijing, 100048, China
| | - Kui Ma
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Division and the 4th Medical Center of Chinese PLA General Hospital, Beijing, 100048, China; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, China; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Beijing, 100048, China
| | - Wenzhi Hu
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Division and the 4th Medical Center of Chinese PLA General Hospital, Beijing, 100048, China
| | - Qilin Huang
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Division and the 4th Medical Center of Chinese PLA General Hospital, Beijing, 100048, China
| | - Jianlong Su
- School of Medicine, NanKai University, Tianjin, 300074, China
| | - Haihong Li
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, 442000, China.
| | - Cuiping Zhang
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Division and the 4th Medical Center of Chinese PLA General Hospital, Beijing, 100048, China; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, China; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Beijing, 100048, China.
| | - Xiaobing Fu
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Division and the 4th Medical Center of Chinese PLA General Hospital, Beijing, 100048, China; Chinese PLA Medical School, Beijing, 100853, China; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, China; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Beijing, 100048, China.
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