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Adipose-derived stem cells modified by BDNF gene rescue erectile dysfunction after cavernous nerve injury
Cavernous nerve injury is the main cause of erectile dysfunction following radical prostatectomy. The recovery of erectile function following radical prostatectomy remains challenging. Our previous studies found that injecting adipose-derived stem cells (ADSCs) into the cavernosa could repair the da...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Wolters Kluwer - Medknow
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6862402/ https://www.ncbi.nlm.nih.gov/pubmed/31535660 http://dx.doi.org/10.4103/1673-5374.264464 |
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author | Yang, Mei Sun, Jiang-Yang Ying, Cheng-Cheng Wang, Yong Guo, Yong-Lian |
author_facet | Yang, Mei Sun, Jiang-Yang Ying, Cheng-Cheng Wang, Yong Guo, Yong-Lian |
author_sort | Yang, Mei |
collection | PubMed |
description | Cavernous nerve injury is the main cause of erectile dysfunction following radical prostatectomy. The recovery of erectile function following radical prostatectomy remains challenging. Our previous studies found that injecting adipose-derived stem cells (ADSCs) into the cavernosa could repair the damaged cavernous nerves, but the erectile function of the treated rats could not be restored to a normal level. We evaluated the efficacy of ADSCs infected with a lentiviral vector encoding rat brain-derived neurotrophic factor (lenti-rBDNF) in a rat model of cavernous nerve injury. The rats were equally and randomly divided into four groups. In the control group, bilateral cavernous nerves were isolated but not injured. In the bilateral cavernous nerve injury group, bilateral cavernous nerves were isolated and injured with a hemostat clamp for 2 minutes. In the ADSC(GFP) and ADSC(rBDNF) groups, after injury with a hemostat clamp for 2 minutes, rats were injected with ADSCs infected with lenti-GFP (1 × 10(6) in 20 μL) and lenti-rBDNF (1 × 10(6) in 20 μL), respectively. Erectile function was assessed 4 weeks after injury by measuring intracavernosal pressures. Then, penile tissues were collected for histological detection and western blot assay. Results demonstrated that compared with the bilateral cavernous nerve injury group, erectile function was significantly recovered in the ADSC(GFP) and ADSC(rBDNF) groups, and to a greater degree in the ADSC(rBDNF) group. Neuronal nitric oxide synthase content in the dorsal nerves and the ratio of smooth muscle/collagen were significantly higher in the ADSC(rBDNF) and ADSC(GFP) groups than in the bilateral cavernous nerve injury group. Neuronal nitric oxide synthase expression was obviously higher in the ADSC(rBDNF) group than in the ADSC(GFP) group. These findings confirm that intracavernous injection with ADSCs infected with lenti-rBDNF can effectively improve erectile dysfunction caused by cavernous nerve injury. This study was approved by the Medical Animal Care and Welfare Committee of Wuhan University, China (approval No. 2017-1638) on June 20, 2017. |
format | Online Article Text |
id | pubmed-6862402 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Wolters Kluwer - Medknow |
record_format | MEDLINE/PubMed |
spelling | pubmed-68624022020-01-02 Adipose-derived stem cells modified by BDNF gene rescue erectile dysfunction after cavernous nerve injury Yang, Mei Sun, Jiang-Yang Ying, Cheng-Cheng Wang, Yong Guo, Yong-Lian Neural Regen Res Research Article Cavernous nerve injury is the main cause of erectile dysfunction following radical prostatectomy. The recovery of erectile function following radical prostatectomy remains challenging. Our previous studies found that injecting adipose-derived stem cells (ADSCs) into the cavernosa could repair the damaged cavernous nerves, but the erectile function of the treated rats could not be restored to a normal level. We evaluated the efficacy of ADSCs infected with a lentiviral vector encoding rat brain-derived neurotrophic factor (lenti-rBDNF) in a rat model of cavernous nerve injury. The rats were equally and randomly divided into four groups. In the control group, bilateral cavernous nerves were isolated but not injured. In the bilateral cavernous nerve injury group, bilateral cavernous nerves were isolated and injured with a hemostat clamp for 2 minutes. In the ADSC(GFP) and ADSC(rBDNF) groups, after injury with a hemostat clamp for 2 minutes, rats were injected with ADSCs infected with lenti-GFP (1 × 10(6) in 20 μL) and lenti-rBDNF (1 × 10(6) in 20 μL), respectively. Erectile function was assessed 4 weeks after injury by measuring intracavernosal pressures. Then, penile tissues were collected for histological detection and western blot assay. Results demonstrated that compared with the bilateral cavernous nerve injury group, erectile function was significantly recovered in the ADSC(GFP) and ADSC(rBDNF) groups, and to a greater degree in the ADSC(rBDNF) group. Neuronal nitric oxide synthase content in the dorsal nerves and the ratio of smooth muscle/collagen were significantly higher in the ADSC(rBDNF) and ADSC(GFP) groups than in the bilateral cavernous nerve injury group. Neuronal nitric oxide synthase expression was obviously higher in the ADSC(rBDNF) group than in the ADSC(GFP) group. These findings confirm that intracavernous injection with ADSCs infected with lenti-rBDNF can effectively improve erectile dysfunction caused by cavernous nerve injury. This study was approved by the Medical Animal Care and Welfare Committee of Wuhan University, China (approval No. 2017-1638) on June 20, 2017. Wolters Kluwer - Medknow 2019-09-16 /pmc/articles/PMC6862402/ /pubmed/31535660 http://dx.doi.org/10.4103/1673-5374.264464 Text en Copyright: © Neural Regeneration Research http://creativecommons.org/licenses/by-nc-sa/4.0 This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms. |
spellingShingle | Research Article Yang, Mei Sun, Jiang-Yang Ying, Cheng-Cheng Wang, Yong Guo, Yong-Lian Adipose-derived stem cells modified by BDNF gene rescue erectile dysfunction after cavernous nerve injury |
title | Adipose-derived stem cells modified by BDNF gene rescue erectile dysfunction after cavernous nerve injury |
title_full | Adipose-derived stem cells modified by BDNF gene rescue erectile dysfunction after cavernous nerve injury |
title_fullStr | Adipose-derived stem cells modified by BDNF gene rescue erectile dysfunction after cavernous nerve injury |
title_full_unstemmed | Adipose-derived stem cells modified by BDNF gene rescue erectile dysfunction after cavernous nerve injury |
title_short | Adipose-derived stem cells modified by BDNF gene rescue erectile dysfunction after cavernous nerve injury |
title_sort | adipose-derived stem cells modified by bdnf gene rescue erectile dysfunction after cavernous nerve injury |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6862402/ https://www.ncbi.nlm.nih.gov/pubmed/31535660 http://dx.doi.org/10.4103/1673-5374.264464 |
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