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Yu C, Sharma S, Fang CH, Jeong H, Li J, Joice G, Bivalacqua TJ, Singh A. Aliphatic Chain Modification of Collagen Type I: Development of Elastomeric, Compliant, and Suturable Scaffolds. ACS APPLIED BIO MATERIALS 2020; 3:1331-1343. [DOI: 10.1021/acsabm.9b00781] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Christine Yu
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Shivang Sharma
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Chen Hao Fang
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Harrison Jeong
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Jiuru Li
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Gregory Joice
- Department of Urology, The James Buchanan Brady Urological Institute, The Johns Hopkins School of Medicine, Baltimore, Maryland 21287, United States
| | - Trinity J. Bivalacqua
- Department of Urology, The James Buchanan Brady Urological Institute, The Johns Hopkins School of Medicine, Baltimore, Maryland 21287, United States
- Departments of Surgery and Oncology, Johns Hopkins Medical Institutions and Sidney Kimmel Comprehensive Cancer Center (SKCC), Baltimore, Maryland 21287, United States
| | - Anirudha Singh
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Department of Urology, The James Buchanan Brady Urological Institute, The Johns Hopkins School of Medicine, Baltimore, Maryland 21287, United States
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Khorramirouz R, Kameli SM, Eftekharzadeh S, Kajbafzadeh AM. Application of omentum as anin vivobioreactor for regeneration of decellularized human internal mammary artery. J Biomed Mater Res A 2017; 105:2685-2693. [DOI: 10.1002/jbm.a.36121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/04/2017] [Accepted: 05/19/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Reza Khorramirouz
- Pediatric Urology Research Center, Department of Pediatric Urology; Pediatrics Center of Excellence, Tehran University of Medical Sciences; Tehran Iran
| | - Seyedeh Maryam Kameli
- Pediatric Urology Research Center, Department of Pediatric Urology; Pediatrics Center of Excellence, Tehran University of Medical Sciences; Tehran Iran
| | - Sahar Eftekharzadeh
- Pediatric Urology Research Center, Department of Pediatric Urology; Pediatrics Center of Excellence, Tehran University of Medical Sciences; Tehran Iran
| | - Abdol-Mohammad Kajbafzadeh
- Pediatric Urology Research Center, Department of Pediatric Urology; Pediatrics Center of Excellence, Tehran University of Medical Sciences; Tehran Iran
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Xiao D, Wang Q, Yan H, Qin A, Lv X, Zhao Y, Zhang M, Zhou Z, Xu J, Hu Q, Lu M. Comparison of morphological and functional restoration between asymmetric bilayer chitosan and bladder acellular matrix graft for bladder augmentation in a rat model. RSC Adv 2017. [DOI: 10.1039/c7ra07601k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Asymmetric bilayer chitosan promoted bladder reconstruction with enhanced smooth muscle regeneration and angiogenesis, and functional restoration with augmented bladder capacity.
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Zhe Z, Jun D, Yang Z, Mingxi X, Ke Z, Ming Z, Zhong W, Mujun L. Bladder Acellular Matrix Grafts Seeded with Adipose-Derived Stem Cells and Incubated Intraperitoneally Promote the Regeneration of Bladder Smooth Muscle and Nerve in a Rat Model of Bladder Augmentation. Stem Cells Dev 2016; 25:405-14. [PMID: 26863067 DOI: 10.1089/scd.2015.0246] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The objective of this study was to investigate the feasibility of bladder acellular matrix grafts (BAMGs) seeded with adipose-derived stem cells (ASCs) followed by intraperitoneal incubation for bladder reconstruction in a rat model of bladder augmentation, and to explore the underlying mechanism. Autologous CM-DiI-labeled ASC-seeded (experimental group) and unseeded (control group) BAMGs were incubated in the peritoneum of male rats for 2 weeks and then harvested for bladder augmentation. Histological analysis of the incubated BAMGs revealed numerous cells growing in homogeneous collagen bundles in both groups. In the control BAMGs, these cells were mesenchyme derived, while in the ASC-seeded BAMGs, myofibroblasts and mesothelial cells were found inside and on the surface of the scaffold, respectively. Immunofluorescence analysis demonstrated that some of the myofibroblasts were transdifferentiated from the ASCs after 2 weeks of intraperitoneal incubation. The greater bladder capacity was found in the experimental group than the control group both 4 and 14 weeks postoperatively. Histological analysis revealed that the entire urothelium regenerated well both in the experimental group and the control group without significant difference 4 weeks and 14 weeks postoperatively. From the quantitative data of immunohistochemical and immunofluorescence staining, the smooth muscle cells (SMCs) regenerated significantly better in the experimental group than the control group both 4 weeks and 14 weeks postoperatively. Also significantly more nerve cells were found in the experimental group 14 weeks postoperatively. At 4 weeks postoperatively, the immunofluorescence double staining revealed that some SMCs in the BAMG were transdifferentiated from the implanted ASCs, but no CM-DiI labeling of ASCs was detected 14 weeks postoperatively. Taken together, our results demonstrate that ASC-seeded and peritoneally incubated BAMGs promote not only the morphological regeneration of the bladder smooth muscle and nerve, but also the bladder capacity, which indicates their potential for bladder regeneration.
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Affiliation(s)
- Zhou Zhe
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Da Jun
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Zhao Yang
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Xu Mingxi
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Zhang Ke
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Zhang Ming
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Wang Zhong
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Lu Mujun
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, China
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