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Leng W, Li X, Dong L, Guo Z, Ji X, Cai T, Xu C, Zhu Z, Lin J. The Regenerative Microenvironment of the Tissue Engineering for Urethral Strictures. Stem Cell Rev Rep 2024; 20:672-687. [PMID: 38305981 DOI: 10.1007/s12015-024-10686-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/27/2024] [Indexed: 02/03/2024]
Abstract
Urethral stricture caused by various reasons has threatened the quality of life of patients for decades. Traditional reconstruction methods, especially for long-segment injuries, have shown poor outcomes in treating urethral strictures. Tissue engineering for urethral regeneration is an emerging concept in which special designed scaffolds and seed cells are used to promote local urethral regeneration. The scaffolds, seed cells, various factors and the host interact with each other and form the regenerative microenvironment. Among the various interactions involved, vascularization and fibrosis are the most important biological processes during urethral regeneration. Mesenchymal stem cells and induced pluripotent stem cells play special roles in stricture repair and facilitate long-segment urethral regeneration, but they may also induce carcinogenesis and genomic instability during reconstruction. Nevertheless, current technologies, such as genetic engineering, molecular imaging, and exosome extraction, provide us with opportunities to manage seed cell-related regenerative risks. In this review, we described the interactions among seed cells, scaffolds, factors and the host within the regenerative microenvironment, which may help in determining the exact molecular mechanisms involved in urethral stricture regeneration and promoting clinical trials and the application of urethral tissue engineering in patients suffering from urethral stricture.
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Affiliation(s)
- Wenyuan Leng
- Department of Urology, Peking University First Hospital, Beijing, 100034, China
- Institute of Urology, Peking University, Beijing, 100034, China
- National Urological Cancer Center, No. 8, Street Xishiku, District Xicheng, Beijing, 100034, China
- Beijing Key Laboratory of Urogenital Diseases (Male) Molecular Diagnosis and Treatment Center, Beijing, 100034, China
| | - Xiaoyu Li
- Department of Urology, Peking University First Hospital, Beijing, 100034, China
- Institute of Urology, Peking University, Beijing, 100034, China
- National Urological Cancer Center, No. 8, Street Xishiku, District Xicheng, Beijing, 100034, China
- Beijing Key Laboratory of Urogenital Diseases (Male) Molecular Diagnosis and Treatment Center, Beijing, 100034, China
| | - Lei Dong
- Department of Urology, Peking University First Hospital, Beijing, 100034, China
- Institute of Urology, Peking University, Beijing, 100034, China
- National Urological Cancer Center, No. 8, Street Xishiku, District Xicheng, Beijing, 100034, China
- Beijing Key Laboratory of Urogenital Diseases (Male) Molecular Diagnosis and Treatment Center, Beijing, 100034, China
| | - Zhenke Guo
- Department of Urology, Peking University First Hospital, Beijing, 100034, China
- Institute of Urology, Peking University, Beijing, 100034, China
- National Urological Cancer Center, No. 8, Street Xishiku, District Xicheng, Beijing, 100034, China
- Beijing Key Laboratory of Urogenital Diseases (Male) Molecular Diagnosis and Treatment Center, Beijing, 100034, China
| | - Xing Ji
- Department of Urology, Peking University First Hospital, Beijing, 100034, China
- Institute of Urology, Peking University, Beijing, 100034, China
- National Urological Cancer Center, No. 8, Street Xishiku, District Xicheng, Beijing, 100034, China
- Beijing Key Laboratory of Urogenital Diseases (Male) Molecular Diagnosis and Treatment Center, Beijing, 100034, China
| | - Tianyu Cai
- Department of Urology, Peking University First Hospital, Beijing, 100034, China
- Institute of Urology, Peking University, Beijing, 100034, China
- National Urological Cancer Center, No. 8, Street Xishiku, District Xicheng, Beijing, 100034, China
- Beijing Key Laboratory of Urogenital Diseases (Male) Molecular Diagnosis and Treatment Center, Beijing, 100034, China
| | - Chunru Xu
- Department of Urology, Peking University First Hospital, Beijing, 100034, China
- Institute of Urology, Peking University, Beijing, 100034, China
- National Urological Cancer Center, No. 8, Street Xishiku, District Xicheng, Beijing, 100034, China
- Beijing Key Laboratory of Urogenital Diseases (Male) Molecular Diagnosis and Treatment Center, Beijing, 100034, China
| | - Zhenpeng Zhu
- Department of Urology, Peking University First Hospital, Beijing, 100034, China
- Institute of Urology, Peking University, Beijing, 100034, China
- National Urological Cancer Center, No. 8, Street Xishiku, District Xicheng, Beijing, 100034, China
- Beijing Key Laboratory of Urogenital Diseases (Male) Molecular Diagnosis and Treatment Center, Beijing, 100034, China
| | - Jian Lin
- Department of Urology, Peking University First Hospital, Beijing, 100034, China.
- Institute of Urology, Peking University, Beijing, 100034, China.
- National Urological Cancer Center, No. 8, Street Xishiku, District Xicheng, Beijing, 100034, China.
- Beijing Key Laboratory of Urogenital Diseases (Male) Molecular Diagnosis and Treatment Center, Beijing, 100034, China.
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Jin Y, Zhao W, Yang M, Fang W, Gao G, Wang Y, Fu Q. Cell-Based Therapy for Urethral Regeneration: A Narrative Review and Future Perspectives. Biomedicines 2023; 11:2366. [PMID: 37760808 PMCID: PMC10525510 DOI: 10.3390/biomedicines11092366] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/29/2023] [Accepted: 08/16/2023] [Indexed: 09/29/2023] Open
Abstract
Urethral stricture is a common urological disease that seriously affects quality of life. Urethroplasty with grafts is the primary treatment, but the autografts used in clinical practice have unavoidable disadvantages, which have contributed to the development of urethral tissue engineering. Using various types of seed cells in combination with biomaterials to construct a tissue-engineered urethra provides a new treatment method to repair long-segment urethral strictures. To date, various cell types have been explored and applied in the field of urethral regeneration. However, no optimal strategy for the source, selection, and application conditions of the cells is available. This review systematically summarizes the use of various cell types in urethral regeneration and their characteristics in recent years and discusses possible future directions of cell-based therapies.
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Affiliation(s)
- Yangwang Jin
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
| | - Weixin Zhao
- Wake Forest Institute for Regenerative Medicine, Winston Salem, NC 27157, USA
| | - Ming Yang
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
| | - Wenzhuo Fang
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
| | - Guo Gao
- Key Laboratory for Thin Film and Micro Fabrication of the Ministry of Education, School of Sensing Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ying Wang
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
| | - Qiang Fu
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
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Duan L, Wang Z, Fan S, Wang C, Zhang Y. Research progress of biomaterials and innovative technologies in urinary tissue engineering. Front Bioeng Biotechnol 2023; 11:1258666. [PMID: 37645598 PMCID: PMC10461011 DOI: 10.3389/fbioe.2023.1258666] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 08/02/2023] [Indexed: 08/31/2023] Open
Abstract
Substantial interests have been attracted to multiple bioactive and biomimetic biomaterials in recent decades because of their ability in presenting a structural and functional reconstruction of urinary tissues. Some innovative technologies have also been surging in urinary tissue engineering and urological regeneration by providing insights into the physiological behavior of the urinary system. As such, the hierarchical structure and tissue function of the bladder, urethra, and ureter can be reproduced similarly to the native urinary tissues. This review aims to summarize recent advances in functional biomaterials and biomimetic technologies toward urological reconstruction. Various nanofirous biomaterials derived from decellularized natural tissues, synthetic biopolymers, and hybrid scaffolds were developed with desired microstructure, surface chemistry, and mechanical properties. Some growth factors, drugs, as well as inorganic nanomaterials were also utilized to enhance the biological activity and functionality of scaffolds. Notably, it is emphasized that advanced approaches, such as 3D (bio) printing and organoids, have also been developed to facilitate structural and functional regeneration of the urological system. So in this review, we discussed the fabrication strategies, physiochemical properties, and biofunctional modification of regenerative biomaterials and their potential clinical application of fast-evolving technologies. In addition, future prospective and commercial products are further proposed and discussed.
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Affiliation(s)
- Liwei Duan
- The Second Hospital, Jilin University, Changchun, China
| | - Zongliang Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Shuang Fan
- The Second Hospital, Jilin University, Changchun, China
| | - Chen Wang
- The Second Hospital, Jilin University, Changchun, China
| | - Yi Zhang
- The Second Hospital, Jilin University, Changchun, China
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Jiao W, Yu W, Wang Y, Zhang J, Wang Y, He H, Shi G. Fibrinogen/poly(l-lactide-co-caprolactone) copolymer scaffold: A potent adhesive material for urethral tissue regeneration in urethral injury treatment. Regen Ther 2023; 22:136-147. [PMID: 36793307 PMCID: PMC9923042 DOI: 10.1016/j.reth.2022.12.004] [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: 07/04/2022] [Revised: 10/02/2022] [Accepted: 12/13/2022] [Indexed: 01/30/2023] Open
Abstract
Since a scarcity of sufficient grafting materials, several complications can arise after urothelial defect reconstruction surgery, including severe hypospadias. Accordingly, developing alternative therapies, such as urethral restoration via tissue engineering are needed. In the present study, we developed a potent adhesive and repairing material using fibrinogen-poly(l-lactide-co-caprolactone) copolymer (Fib-PLCL) nanofiber scaffold to achieve effective urethral tissue regeneration after seeding with epithelial cells on the surface. The in vitro result found the Fib-PLCL scaffold promoted the attachment and viability of epithelial cells on their surface. The increased expression levels of cytokeratin and actin filaments were observed in Fib-PLCL scaffold than PLCL scaffold. The in vivo urethral injury repairing potential of Fib-PLCL scaffold was evaluated using a rabbit urethral replacement model. In this study, a urethral defect was surgically excised and replaced with the Fib-PLCL and PLCL scaffolds or autograft. As expected, the animals healed well after surgery in the Fib-PLCL scaffold group, and no significant strictures were identified. As expected, the cellularized Fib/PLCL grafts have induced the luminal epithelialization, urethral smooth muscle cell remodelling, and capillary development all at the same time. Histological analysis revealed that the urothelial integrity in the Fib-PLCL group had progressed to that of a normal urothelium, with enhanced urethral tissue development. Based on the results, the present study suggests that the prepared fibrinogen-PLCL scaffold is more appropriate for urethral defect reconstruction.
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Affiliation(s)
- Wei Jiao
- Department of Urology, Shanghai Fifth People's Hospital, Fudan University, No. 801 Heqing Road, Minhang District, Shanghai 200240, China
| | - Wandong Yu
- Department of Urology, Shanghai Fifth People's Hospital, Fudan University, No. 801 Heqing Road, Minhang District, Shanghai 200240, China
| | - Yangyun Wang
- Department of Urology, Shanghai Fifth People's Hospital, Fudan University, No. 801 Heqing Road, Minhang District, Shanghai 200240, China
| | - Jun Zhang
- Department of Urology, Shanghai Fifth People's Hospital, Fudan University, No. 801 Heqing Road, Minhang District, Shanghai 200240, China
| | - Yang Wang
- Department of Urology, Shanghai Fifth People's Hospital, Fudan University, No. 801 Heqing Road, Minhang District, Shanghai 200240, China
| | - Hongbing He
- Shanghai Songli Biotechnology Co., Ltd, Shanghai 201206, China
| | - Guowei Shi
- Department of Urology, Shanghai Fifth People's Hospital, Fudan University, No. 801 Heqing Road, Minhang District, Shanghai 200240, China
- Corresponding author.
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Niu Y, Liu G, Fu M, Chen C, Fu W, Zhang Z, Xia H, Stadler FJ. Designing a multifaceted bio-interface nanofiber tissue-engineered tubular scaffold graft to promote neo-vascularization for urethral regeneration. J Mater Chem B 2021; 8:1748-1758. [PMID: 32031190 DOI: 10.1039/c9tb01915d] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Reconstitution of urethral defects through a tissue-engineered autologous urethra is an exciting area of clinical urology research. Despite rapid advances in this field, a tissue-engineered urethra is still inaccessible to clinical applications because of the poor vascularization of the current scaffold materials, especially for the reconstruction of complex urethral defects. In this study, we report the preparation of multifaceted bio-interfacing tissue-engineered autologous scaffolds based on alternating block polyurethane (abbreviated as PU-alt), a kind of tubular scaffold with a hierarchical nanofiber architecture, flexible mechanical properties and a hydrophilic PEGylation interface capable of promoting adhesion, oriented elongation, and proliferation of New Zealand rabbit autologous urethral epithelial cells (ECs) and smooth muscle cells (SMCs) simultaneously, and also upregulating the expression of keratin (AE1/AE3) in ECs and contractile protein (α-SMA) in SMCs as well as the subsequent synthesis of elastin. Three months in vivo scaffold substitution of rabbit urethras displayed that the engineered autologous PU-alt scaffold grafts, with a coating rich in seed cell-matrix, could induce local neo-vascularization, facilitating oriented SMC remodeling and lumen epithelialization as well as patency. Our findings indicate a central role of the synergistic interplay of seed cell-matrix bio-interface and nano-topographic cues in the vascularized urethral reconstruction.
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Affiliation(s)
- Yuqing Niu
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China. and Nanshan District Key Lab for Biopolymers and Safety Evaluation, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, P. R. China. and State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Guochang Liu
- Department of Pediatric Urology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Ming Fu
- Department of Pediatric Urology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Chuangbi Chen
- Nanshan District Key Lab for Biopolymers and Safety Evaluation, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, P. R. China.
| | - Wen Fu
- Department of Pediatric Urology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Zhao Zhang
- Department of Pediatric Urology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Huimin Xia
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China. and State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Florian J Stadler
- Nanshan District Key Lab for Biopolymers and Safety Evaluation, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, P. R. China.
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Gao X, Xu Z, Liu G, Wu J. Polyphenols as a versatile component in tissue engineering. Acta Biomater 2021; 119:57-74. [PMID: 33166714 DOI: 10.1016/j.actbio.2020.11.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 10/12/2020] [Accepted: 11/03/2020] [Indexed: 12/14/2022]
Abstract
The fabrication of functional tissue or organs substitutes has always been the pursuit of goals in the field of tissue engineering. But even biocompatible tissue-engineered scaffolds still suffer from immune rejection, subsequent long-term oxidative stress and inflammation, which can delay normal tissue repair and regeneration. As a well-known natural antioxidant, polyphenols have been widely used in tissue engineering in recent years. The introduced polyphenols not only reduce the damage of oxidative stress to normal tissues, but show specific affinity to functional molecules, such as receptors, enzyme, transcription and transduction factors, etc. Therefore, polyphenols can promote the recovery process of damaged tissues by both regulating tissue microenvironment and participating in cell events, which embody specifically in antioxidant, anti-inflammatory, antibacterial and growth-promoting properties. In addition, based on its hydrophilic and hydrophobic moieties, polyphenols have been widely used to improve the mechanical properties and anti-degradation properties of tissue engineering scaffolds. In this review, the research advances of tissue engineering scaffolds containing polyphenols is discussed systematically from the aspects of action mechanism, introduction method and regulation effect of polyphenols, in order to provide references for the rational design of polyphenol-related functional scaffolds.
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Liu G, Fu M, Li F, Fu W, Zhao Z, Xia H, Niu Y. Tissue-engineered PLLA/gelatine nanofibrous scaffold promoting the phenotypic expression of epithelial and smooth muscle cells for urethral reconstruction. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110810. [PMID: 32279818 DOI: 10.1016/j.msec.2020.110810] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 03/02/2020] [Accepted: 03/02/2020] [Indexed: 01/31/2023]
Abstract
The repair and regeneration of tissues using tissue-engineered scaffolds represent the ultimate goal of regenerative medicine. Despite rapid developments in the field, urethral tissue engineering methods are still insufficient to replicate natural urethral tissue because the bioactivity of existing scaffolds is inefficient, especially for large tissue defects, which require large tissue-engineered scaffolds. Here, we describe the efficiency of gelatine-functionalized, tubular nanofibrous scaffolds of poly(l-lactic acid) (PLLA) in regulating the phenotypic expression of epithelial cells (ECs) and smooth muscle cells (SMCs) for urethral reconstruction. Flexible PLLA/gelatine tubular nanofibrous scaffolds with hierarchical architecture were fabricated by electrospinning. The PLLA/gelatine nanofibrous scaffold exhibited enhanced hydrophilicity and significantly promoted the adhesion, oriented elongation, and proliferation of New Zealand rabbit autologous ECs and SMCs simultaneously. Compared with pure PLLA nanofibrous scaffold, PLLA/gelatine nanofibrous scaffolds upregulated the expression of keratin (AE1/AE3) in ECs and actin (α-SMA) in SMCs as well as the synthesis of elastin. Three months of in vivo scaffold replacement of New Zealand rabbit urethras indicated that a tubular cellularized PLLA/gelatine nanofibrous scaffold maintained urethral patency and facilitated oriented SMC remodeling, lumen epithelialization, and angiogenesis. Our observations showed the synergistic effects of nano-morphology and biochemical clues in the design of biomimetic scaffolds, which can effectively promote urethral regeneration.
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Affiliation(s)
- Guochang Liu
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Ming Fu
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Feng Li
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Wen Fu
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Zhang Zhao
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Huimin Xia
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China.
| | - Yuqing Niu
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China; State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China.
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8
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The current state of tissue engineering in the management of hypospadias. Nat Rev Urol 2020; 17:162-175. [DOI: 10.1038/s41585-020-0281-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/06/2020] [Indexed: 12/20/2022]
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Niu Y, Liu G, Chen C, Fu M, Fu W, Zhao Z, Xia H, Stadler FJ. Urethral reconstruction using an amphiphilic tissue-engineered autologous polyurethane nanofiber scaffold with rapid vascularization function. Biomater Sci 2020; 8:2164-2174. [DOI: 10.1039/c9bm01911a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We report the efficient application of a well-layered tubular amphiphilic nanofiber of a polyurethane copolymer (PU-ran) for the regulation the phenotypic expression of epithelial cells (ECs) and smooth muscle cells (SMCs) for vascularized urethral reconstruction.
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Affiliation(s)
- Yuqing Niu
- Department of Pediatric Surgery
- Guangzhou Institute of Pediatrics
- Guangzhou Women and Children's Medical Center
- Guangzhou Medical University
- Guangzhou 510623
| | - Guochang Liu
- Department of Pediatric Urology
- Guangzhou Women and Children's Medical Center
- Guangzhou Medical University
- Guangzhou 510623
- China
| | - Chuangbi Chen
- Nanshan District Key Lab for Biopolymers and Safety Evaluation
- Shenzhen Key Laboratory of Polymer Science and Technology
- Guangdong Research Center for Interfacial Engineering of Functional Materials
- College of Materials Science and Engineering
- Shenzhen University
| | - Ming Fu
- Department of Pediatric Urology
- Guangzhou Women and Children's Medical Center
- Guangzhou Medical University
- Guangzhou 510623
- China
| | - Wen Fu
- Department of Pediatric Urology
- Guangzhou Women and Children's Medical Center
- Guangzhou Medical University
- Guangzhou 510623
- China
| | - Zhang Zhao
- Department of Pediatric Urology
- Guangzhou Women and Children's Medical Center
- Guangzhou Medical University
- Guangzhou 510623
- China
| | - Huimin Xia
- Department of Pediatric Surgery
- Guangzhou Institute of Pediatrics
- Guangzhou Women and Children's Medical Center
- Guangzhou Medical University
- Guangzhou 510623
| | - Florian J. Stadler
- Nanshan District Key Lab for Biopolymers and Safety Evaluation
- Shenzhen Key Laboratory of Polymer Science and Technology
- Guangdong Research Center for Interfacial Engineering of Functional Materials
- College of Materials Science and Engineering
- Shenzhen University
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10
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Liu X, Sun N, Mo N, Lu S, Song E, Ren C, Li Z. Quercetin inhibits kidney fibrosis and the epithelial to mesenchymal transition of the renal tubular system involving suppression of the Sonic Hedgehog signaling pathway. Food Funct 2019; 10:3782-3797. [PMID: 31180394 DOI: 10.1039/c9fo00373h] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Quercetin is the most ubiquitous flavonoid in fruits, herbs, vegetables and products made from them. It shows the potential to inhibit the progression of kidney fibrosis and the epithelial to mesenchymal transition (EMT) of the renal tubular system, but the molecular mechanism behind this is still not known. In our study, we explored the effect of quercetin treatment on extracellular matrix (ECM) deposition and stimulation of the EMT in vitro and in vivo and tried to deduce the mechanisms regulating these effects. In rats having unilateral ureter obstruction (UUO), quercetin treatment significantly prevented renal function decline. Quercetin reduced the TGF-β1 expression and inhibited the epithelial cell to mesenchymal cell phenotypic switch, as well as ECM deposition in rats with UUO. In cultured epithelial cells of the renal tubular region (NRK-52E), quercetin markedly ameliorated the EMT and ECM synthesis induced by TGF-β1. Activation of the Hedgehog pathway was closely related to EMT induction. Quercetin effectively suppressed the hyperactive Hedgehog pathway in NRK-52E cells treated with TGF-β1 and in kidney obstructed rats, which reduced the EMT, ECM deposition and cellular proliferation. Moreover, we examined certain transcriptional factors (slug, snail, ZEB-1 and twist) that govern the E-cadherin expression at the level of transcription. The results unveiled that the four transcriptional factors were highly repressed in NRK-52E cells treated with TGF-β1 and also in obstructed kidneys by quercetin-mediated inhibition. Therefore, these outcomes indicate that quercetin could alleviate fibrosis and the EMT in vitro and in vivo by inhibiting the activation of Hedgehog signaling and could act as a therapeutic agent for patients having several kinds of renal fibrotic diseases.
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Affiliation(s)
- Xianghua Liu
- Scientific Research and Experiment Center, Henan University of Chinese Medicine, China
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11
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Ardeshirylajimi A, Ghaderian SMH, Omrani MD, Moradi SL. Biomimetic scaffold containing PVDF nanofibers with sustained TGF-β release in combination with AT-MSCs for bladder tissue engineering. Gene 2018; 676:195-201. [DOI: 10.1016/j.gene.2018.07.046] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 07/07/2018] [Accepted: 07/16/2018] [Indexed: 01/27/2023]
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12
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Zhao X, Chen Z, Liu Y, Huang Q, Zhang H, Ji W, Ren J, Li J, Zhao Y. Silk Fibroin Microparticles with Hollow Mesoporous Silica Nanocarriers Encapsulation for Abdominal Wall Repair. Adv Healthc Mater 2018; 7:e1801005. [PMID: 30294864 DOI: 10.1002/adhm.201801005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 09/15/2018] [Indexed: 12/20/2022]
Abstract
Therapeutic vascularization appears to be an effective way of repairing abdominal wall defects. Attempts to implement this treatment tend to focus on the generation of featured drug carriers with the ability effectively to encapsulate the angiogenesis-stimulating agents and control their release to maintain an appropriate concentration at the injured area. Here, a new type of composite microparticle (CM) composed of silk fibroin (SF) and hollow mesoporous silica nanocarriers (HMSNs) is presented for therapeutic agent delivery. The CMs are generated by drying microfluidic emulsion templates of HMSN-dispersed SF solution. The resultant CMs have a distinctive micro-nanostructure, in which two barriers control the drug release. The encapsulated HMSNs increase the drug-carrying capacity of the CMs, and also form the first barrier via physical absorption. The microfluidic SF microparticles not only provide a shell with excellent monodispersity and biocompatibility but also form the second barrier via efficient encapsulation. Because of these superior properties of the CMs, the loaded drugs can be delivered with a satisfactory activity at the required rate, making them ideal for implementing therapeutic vascularization and repairing abdominal wall defects.
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Affiliation(s)
- Xin Zhao
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Zhuoyue Chen
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yuxiao Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Qian Huang
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Huidan Zhang
- School of Engineering and Applied Sciences and Department of Physics, Harvard University, Cambridge, MA, 02138, USA
| | - Wu Ji
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Jianan Ren
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Jieshou Li
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Yuanjin Zhao
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
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13
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Yan X, Zhou Z, Guo L, Zeng Z, Guo Z, Shao Q, Xu W. BMP7-overexpressing bone marrow-derived mesenchymal stem cells (BMSCs) are more effective than wild-type BMSCs in healing fractures. Exp Ther Med 2018; 16:1381-1388. [PMID: 30112066 DOI: 10.3892/etm.2018.6339] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 01/09/2018] [Indexed: 12/20/2022] Open
Abstract
Bone fractures are a worldwide public health concern. Previous studies have demonstrated that bone morphogenetic protein-7 (BMP7) gene transfer or mesenchymal stem cells (MSCs) transplantation may be a promising novel therapeutic approach. Therefore, the aim of the present study was to observe the effect of bone BMP7 transfer to MSCs on fracture healing. Bone marrow-derived MSCs (BMSCs) from New Zealand white rabbits were isolated and identified using flow cytometry. A recombinant BMP7 overexpressing adenovirus vector (Adv) was constructed and transfected into BMSCs. The expression of BMP7 was detected by reverse transcription-polymerase chain reaction, immunofluorescence and western blotting. The present study additionally investigated the effect of BMP7 on the differentiation capacity of BMSCs. Finally, tissue-engineered bone was created with support material to verify the effect of BMP7-BMSCs on fracture healing. The results demonstrated that the expression of BMP7 was increased at the mRNA and protein levels in BMSCs following transfection with BMP7 overexpressing Adv. The results additionally demonstrated that the expression of BMP7 enhanced the differentiation capacity of bone marrow mesenchymal stem cells and had a promotional effect on fracture healing. Overall, these data suggest that Adv-BMP7 is useful for introducing foreign genes into BMSCs and will be a powerful gene therapy tool for bone regeneration and other tissue engineering applications in the future.
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Affiliation(s)
- Xu Yan
- Department of Orthopedics, The 455th Hospital of PLA, Shanghai 200052, P.R. China
| | - Zhenhua Zhou
- Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, Shanghai 200003, P.R. China.,Department of Orthopedics, The 169th Hospital of PLA, Hengyang, Hunan 421002, P.R. China.,Department of Orthopedics, Xiangnan Hospital, College of Medicine, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Lixin Guo
- Department of Orthopedics, The 169th Hospital of PLA, Hengyang, Hunan 421002, P.R. China.,Department of Orthopedics, Xiangnan Hospital, College of Medicine, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Zhaochi Zeng
- Department of Orthopedics, The 169th Hospital of PLA, Hengyang, Hunan 421002, P.R. China.,Department of Orthopedics, Xiangnan Hospital, College of Medicine, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Zhongkai Guo
- Department of Orthopedics, The 169th Hospital of PLA, Hengyang, Hunan 421002, P.R. China.,Department of Orthopedics, Xiangnan Hospital, College of Medicine, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Qingdong Shao
- Department of Orthopedics, The 455th Hospital of PLA, Shanghai 200052, P.R. China
| | - Weidong Xu
- Department of Orthopedics, Changhai Hospital Affiliated to The Second Military Medical University, Shanghai 200433, P.R. China
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14
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Smolar J, Horst M, Sulser T, Eberli D. Bladder regeneration through stem cell therapy. Expert Opin Biol Ther 2018; 18:525-544. [DOI: 10.1080/14712598.2018.1439013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jakub Smolar
- Department of Urology, University Hospital Zurich, Schlieren, Switzerland
| | - Maya Horst
- Department of Urology, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Tulio Sulser
- Department of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Daniel Eberli
- Department of Urology, University Hospital Zurich, Zurich, Switzerland
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15
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Abstract
Reconstructive urologists are constantly facing diverse and complex pathologies that require structural and functional restoration of urinary organs. There is always a demand for a biocompatible material to repair or substitute the urinary tract instead of using patient's autologous tissues with its associated morbidity. Biomimetic approaches are tissue-engineering tactics aiming to tailor the material physical and biological properties to behave physiologically similar to the urinary system. This review highlights the different strategies to mimic urinary tissues including modifications in structure, surface chemistry, and cellular response of a range of biological and synthetic materials. The article also outlines the measures to minimize infectious complications, which might lead to graft failure. Relevant experimental and preclinical studies are discussed, as well as promising biomimetic approaches such as three-dimensional bioprinting.
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Affiliation(s)
- Moustafa M Elsawy
- Division of Surgery and Interventional Science, Royal Free Hospital, NHS Trust, University College London (UCL)
- Division of Reconstructive Urology, University College London Hospitals (uclh), London, UK
- Urology Department, School of Medicine, Alexandria University, Alexandria, Egypt
| | - Achala de Mel
- Division of Surgery and Interventional Science, Royal Free Hospital, NHS Trust, University College London (UCL)
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16
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Chan YY, Sandlin SK, Kurzrock EA, Osborn SL. The Current Use of Stem Cells in Bladder Tissue Regeneration and Bioengineering. Biomedicines 2017; 5:biomedicines5010004. [PMID: 28536347 PMCID: PMC5423492 DOI: 10.3390/biomedicines5010004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/23/2016] [Accepted: 12/26/2016] [Indexed: 12/17/2022] Open
Abstract
Many pathological processes including neurogenic bladder and malignancy necessitate bladder reconstruction, which is currently performed using intestinal tissue. The use of intestinal tissue, however, subjects patients to metabolic abnormalities, bladder stones, and other long-term sequelae, raising the need for a source of safe and reliable bladder tissue. Advancements in stem cell biology have catapulted stem cells to the center of many current tissue regeneration and bioengineering strategies. This review presents the recent advancements in the use of stem cells in bladder tissue bioengineering.
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Affiliation(s)
- Yvonne Y Chan
- Department of Urology, Davis School of Medicine, University of California, Sacramento, CA 95817, USA.
| | - Samantha K Sandlin
- Department of Urology, Davis School of Medicine, University of California, Sacramento, CA 95817, USA.
- Stem Cell Program, Institute for Regenerative Cures, University of California, Davis Medical Center, Sacramento, CA 95817, USA.
| | - Eric A Kurzrock
- Department of Urology, Davis School of Medicine, University of California, Sacramento, CA 95817, USA.
- Stem Cell Program, Institute for Regenerative Cures, University of California, Davis Medical Center, Sacramento, CA 95817, USA.
| | - Stephanie L Osborn
- Department of Urology, Davis School of Medicine, University of California, Sacramento, CA 95817, USA.
- Stem Cell Program, Institute for Regenerative Cures, University of California, Davis Medical Center, Sacramento, CA 95817, USA.
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17
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IGF-1-containing multi-layered collagen-fibrin hybrid scaffolds for bladder tissue engineering. Acta Biomater 2016; 41:75-85. [PMID: 27286676 DOI: 10.1016/j.actbio.2016.06.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/25/2016] [Accepted: 06/07/2016] [Indexed: 02/03/2023]
Abstract
UNLABELLED Clinical success of bladder reconstructive procedures could be promoted by the availability of functional biomaterials. In this study, we have developed a multi-layered scaffold consisting of a bioactive fibrin layer laminated between two collagen sheets all having undergone plastic compression. With this construct we performed bladder augmentation in a nude rat model after partial bladder excision and evaluated the morphological and functional behavior of the implant. The fibrin was functionalized with a recombinant human insulin-like growth factor-1 (IGF-1) variant that covalently binds fibrin during polymerization and has a matrix metalloproteinase-cleavage insert to enable cell-mediated release. The purified IGF-1 variant showed similar bioactivity in vitro compared to commercially available wild type (wt) IGF-1, inducing receptor phosphorylation and induction of human smooth muscle cell proliferation. In vivo, the multi-layered bioactive collagen-fibrin scaffolds loaded with the IGF-1 variant triggered dose-dependent functional host smooth muscle cell invasion and bundle formation with re-urothelialization 4weeks after surgery in a rat model. STATEMENT OF SIGNIFICANCE The design of new bio-functional scaffolds that can be employed for bladder reconstructive procedures is a growing focus in the field of tissue engineering. In this study, a fibrin binding form of human insulin-like growth factor-1 (IGF-1) was produced and used to functionalize a multi-layered collagen-fibrin scaffold consisting of bioactive fibrin layer, sandwiched between two collagen gels. An effective dosage of our IGF-1 variant was successfully determined via a nude rat bladder model, which may play a critical role in estimating its therapeutic dosage in clinical trials. Thus, this new bioactive scaffold may offer an advanced approach to accelerate bladder regeneration.
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18
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Scioli MG, Bielli A, Gentile P, Cervelli V, Orlandi A. Combined treatment with platelet-rich plasma and insulin favours chondrogenic and osteogenic differentiation of human adipose-derived stem cells in three-dimensional collagen scaffolds. J Tissue Eng Regen Med 2016; 11:2398-2410. [PMID: 27074878 DOI: 10.1002/term.2139] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 11/18/2015] [Accepted: 12/10/2015] [Indexed: 02/06/2023]
Abstract
Osteochondral lesions due to injury or other pathology commonly result in the development of osteoarthritis and progressive joint destruction. Bioengineered scaffolds are widely studied for regenerative surgery strategies in osteochondral defect management, also combining the use of stem cells, growth factors and hormones. The utility in tissue engineering of human adipose-derived stem cells (ASCs) isolated from adipose tissue has been widely noted. Autologous platelet-rich plasma (PRP) represents an alternative strategy in regenerative medicine for the local release of endogenous growth factors and hormones. Here we compared the effects of three-dimensional (3D) collagen type I scaffold culture and combined treatment with PRP and human recombinant insulin on the chondro-/osteogenic differentiation of ASCs. Histochemical and biomolecular analyses demonstrated that chondro-/osteogenic differentiation was increased in ASC-populated 3D collagen scaffolds compared with two-dimensional (2D) plastic dish culture. Chondro-/osteogenic differentiation was further enhanced in the presence of combined PRP (5% v/v) and insulin (100 nm) treatment. In addition, chondro-/osteogenic differentiation associated with the contraction of ASC-populated 3D collagen scaffold and increased β1/β3-integrin expression. Inhibition studies demonstrated that PRP/insulin-induced chondro-/osteogenic differentiation is independent of insulin-like growth factor 1 receptor (IGF-1R) and mammalian target of rapamycin (mTOR) signalling; IGF-R1/mTOR inhibition even enhanced ASC chondro-/osteogenic differentiation. Our findings underline that 3D collagen scaffold culture in association with platelet-derived growth factors and insulin favour the chondro-/osteogenic differentiation of ASCs, suggesting new translational applications in regenerative medicine for the management of osteochondral defects. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Maria Giovanna Scioli
- Institute of Anatomical Pathology, Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Alessandra Bielli
- Institute of Anatomical Pathology, Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Pietro Gentile
- Plastic and Reconstructive Surgery, Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Valerio Cervelli
- Plastic and Reconstructive Surgery, Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Augusto Orlandi
- Institute of Anatomical Pathology, Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
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19
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Ren J, Li J, Liu X, Feng Y, Gui Y, Yang J, He W, Dai C. Quercetin Inhibits Fibroblast Activation and Kidney Fibrosis Involving the Suppression of Mammalian Target of Rapamycin and β-catenin Signaling. Sci Rep 2016; 6:23968. [PMID: 27052477 PMCID: PMC4823739 DOI: 10.1038/srep23968] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 03/17/2016] [Indexed: 02/06/2023] Open
Abstract
Quercetin, a flavonoid found in a wide variety of plants and presented in human diet, displays promising potential in preventing kidney fibroblast activation. However, whether quercetin can ameliorate kidney fibrosis in mice with obstructive nephropathy and the underlying mechanisms remain to be further elucidated. In this study, we found that administration of quercetin could largely ameliorate kidney interstitial fibrosis and macrophage accumulation in the kidneys with obstructive nephropathy. MTORC1, mTORC2, β-catenin as well as Smad signaling were activated in the obstructive kidneys, whereas quercetin could markedly reduce their abundance except Smad3 phosphorylation. In cultured NRK-49F cells, quercetin could inhibit α-SMA and fibronectin (FN) expression induced by TGFβ1 treatment. MTORC1, mTORC2, β-catenin and Smad signaling pathways were stimulated by TGFβ1 at a time dependent manner. Similar to those findings in the obstructive kidneys, mTORC1, mTORC2 and β-catenin, but not Smad signaling pathways were remarkably blocked by quercetin treatment. Together, these results suggest that quercetin inhibits fibroblast activation and kidney fibrosis involving a combined inhibition of mTOR and β-catenin signaling transduction, which may act as a therapeutic candidate for patients with chronic kidney diseases.
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Affiliation(s)
- Jiafa Ren
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Jianzhong Li
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Xin Liu
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Ye Feng
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Yuan Gui
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Junwei Yang
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Weichun He
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Chunsun Dai
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China.,State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, Jiangsu, China
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20
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Snow-Lisy DC, Diaz EC, Bury MI, Fuller NJ, Hannick JH, Ahmad N, Sharma AK. The Role of Genetically Modified Mesenchymal Stem Cells in Urinary Bladder Regeneration. PLoS One 2015; 10:e0138643. [PMID: 26398705 PMCID: PMC4580420 DOI: 10.1371/journal.pone.0138643] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 08/03/2015] [Indexed: 01/01/2023] Open
Abstract
Recent studies have demonstrated that mesenchymal stem cells (MSCs) combined with CD34+ hematopoietic/stem progenitor cells (HSPCs) can function as surrogate urinary bladder cells to synergistically promote multi-faceted bladder tissue regeneration. However, the molecular pathways governing these events are unknown. The pleiotropic effects of Wnt5a and Cyr61 are known to affect aspects of hematopoiesis, angiogenesis, and muscle and nerve regeneration. Within this study, the effects of Cyr61 and Wnt5a on bladder tissue regeneration were evaluated by grafting scaffolds containing modified human bone marrow derived MSCs. These cell lines were engineered to independently over-express Wnt5a or Cyr61, or to exhibit reduced expression of Cyr61 within the context of a nude rat bladder augmentation model. At 4 weeks post-surgery, data demonstrated increased vessel number (~250 vs ~109 vessels/mm2) and bladder smooth muscle content (~42% vs ~36%) in Cyr61OX (over-expressing) vs Cyr61KD (knock-down) groups. Muscle content decreased to ~25% at 10 weeks in Cyr61KD groups. Wnt5aOX resulted in high numbers of vessels and muscle content (~206 vessels/mm2 and ~51%, respectively) at 4 weeks. Over-expressing cell constructs resulted in peripheral nerve regeneration while Cyr61KD animals were devoid of peripheral nerve regeneration at 4 weeks. At 10 weeks post-grafting, peripheral nerve regeneration was at a minimal level for both Cyr61OX and Wnt5aOX cell lines. Blood vessel and bladder functionality were evident at both time-points in all animals. Results from this study indicate that MSC-based Cyr61OX and Wnt5aOX cell lines play pivotal roles with regards to increasing the levels of functional vasculature, influencing muscle regeneration, and the regeneration of peripheral nerves in a model of bladder augmentation. Wnt5aOX constructs closely approximated the outcomes previously observed with the co-transplantation of MSCs with CD34+ HSPCs and may be specifically targeted as an alternate means to achieve functional bladder regeneration.
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Affiliation(s)
- Devon C. Snow-Lisy
- Ann & Robert H. Lurie Children's Hospital of Chicago, Division of Pediatric Urology, Chicago, IL, United States of America
| | - Edward C. Diaz
- Ann & Robert H. Lurie Children's Hospital of Chicago, Division of Pediatric Urology, Chicago, IL, United States of America
| | - Matthew I. Bury
- Ann & Robert H. Lurie Children's Hospital of Chicago, Division of Pediatric Urology, Chicago, IL, United States of America
| | - Natalie J. Fuller
- Ann & Robert H. Lurie Children's Hospital of Chicago, Division of Pediatric Urology, Chicago, IL, United States of America
| | - Jessica H. Hannick
- Department of Urology, Loyola University Health System, Maywood, IL, United States of America
| | - Nida Ahmad
- Ann & Robert H. Lurie Children's Hospital of Chicago, Division of Pediatric Urology, Chicago, IL, United States of America
| | - Arun K. Sharma
- Ann & Robert H. Lurie Children's Hospital of Chicago, Division of Pediatric Urology, Chicago, IL, United States of America
- Northwestern University Feinberg School of Medicine, Department of Urology, Chicago, IL, United States of America
- Northwestern University, Simpson Querrey Institute for BioNanotechnology, Chicago, IL, United States of America
- Northwestern University, Department of Biomedical Engineering, Evanston, IL, United States of America
- * E-mail:
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21
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Damaser MS, Sievert KD. Tissue engineering and regenerative medicine: bench to bedside in urology. Preface. Adv Drug Deliv Rev 2015; 82-83:v-vii. [PMID: 25623935 DOI: 10.1016/j.addr.2015.01.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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