Mesenchymal Stem Cells Overexpressing Hepatocyte Growth Factor (HGF) Inhibit Collagen Deposit and Improve Bladder Function in Rat Model of Bladder Outlet Obstruction

Introduction An underactive bladder can lead to difficulty in voiding that causes incomplete emptying of the bladder, suggesting the need for a new strategy to increase bladder contractility in such patients. This study was performed to investigate whether human mesenchymal stem cells (hMSCs) were capable of restoring bladder contractility in rats with underactive bladder due to bladder outlet obstruction (BOO) and enhancing their effects by overexpressing hepatocyte growth factor (HGF) in hMSCs. Materials and methods The hMSCs were transplanted into the bladder wall of rats. Fifty female Sprague-Dawley rats at six weeks of age were divided into five groups: group 1: control; group 2: sham intervention; group 3: eight-week BOO; group 4: BOO rats transplanted with hMSCs; and group 5: BOO rats transplanted with hMSCs overexpressing HGF. Two weeks after the onset of BOO in groups 4 and 5, hMSCs were injected into the bladder wall. Cystometry evaluation was followed by Masson’s trichrome staining of bladder tissues. Realtime PCR and immunohistochemical staining were performed to determine for hypoxia, apoptosis, and angiogenesis. Results Collagen deposition of bladder increased in BOO but decreased after transplantation of hMSCs. The increased inter-contraction interval and residual urine volume after BOO was reversed after hMSCs transplantation. The decreased maximal voiding pressure after BOO was restored by hMSCs treatment. The mRNA expression of bladder collagen1 and TGF-β1 increased in BOO but decreased after hMSCs transplantation. The decrease in vWF-positive cells in the bladder following BOO was increased after hMSCs transplantation. Caspase 3 and TUNEL-positive apoptosis of bladder cells increased in BOO but decreased after transplantation of hMSCs. These effects were enhanced by overexpressing HGF in hMSCs. Conclusion Transplantation of hMSCs into bladder wall increased the number of micro-vessels, decreased collagen deposition and apoptosis of detrusor muscle, and improved bladder underactivity. The effects were enhanced by overexpressing HGF in hMSCs. Our findings suggest that the restoration of underactive bladder using hMSCs may be used to rectify micturition disorders in patients following resolution of BOO. Further studies are needed before hMSCs can be used in clinical applications.

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HEPATOCYTE GROWTH FACTOR GENETICALLY MODIFIED BONE MARROW-DERIVED MESENCHYMAL STEM CELLS TRANSPLANTATION PROMOTES ANGIOGENESIS IN A RAT MODEL OF HINDLIMB ISCHAEMIA

Heart ◽

10.1136/heartjnl-2012-302920a.213 ◽

2012 ◽

Vol 98 (Suppl 2) ◽

pp. E82.4-E83

Author(s):

Guanhua Su ◽

Yufei Sun ◽

Yongxin Lu ◽

Xinxin Shuai ◽

Yuhua Liao ◽

...

Keyword(s):

Stem Cells ◽

Bone Marrow ◽

Mesenchymal Stem Cells ◽

Growth Factor ◽

Hepatocyte Growth Factor ◽

Rat Model ◽

Genetically Modified ◽

Stem Cells Transplantation ◽

Hepatocyte Growth

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Therapeutic effect of hepatocyte growth factor-secreting mesenchymal stem cells in a rat model of liver fibrosis

Experimental & Molecular Medicine ◽

10.1038/emm.2014.49 ◽

2014 ◽

Vol 46 (8) ◽

pp. e110-e110 ◽

Cited By ~ 39

Author(s):

Myung-Deok Kim ◽

Sung-Soo Kim ◽

Hyun-Young Cha ◽

Seung-Hun Jang ◽

Da-Young Chang ◽

...

Keyword(s):

Stem Cells ◽

Mesenchymal Stem Cells ◽

Growth Factor ◽

Liver Fibrosis ◽

Hepatocyte Growth Factor ◽

Therapeutic Effect ◽

Rat Model ◽

Hepatocyte Growth

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Engineered Stem Cells Improve Neurogenic Bladder by Overexpressing SDF-1 in a Pelvic Nerve Injury Rat Model

Cell Transplantation ◽

10.1177/0963689720902466 ◽

2020 ◽

Vol 29 ◽

pp. 096368972090246 ◽

Cited By ~ 2

Author(s):

Guan Qun Zhu ◽

Seung Hwan Jeon ◽

Kyu Won Lee ◽

Hyuk Jin Cho ◽

U-Syn Ha ◽

...

Keyword(s):

Stem Cells ◽

Mesenchymal Stem Cells ◽

Growth Factor ◽

Neurogenic Bladder ◽

Rat Model ◽

Bladder Wall ◽

Bladder Function ◽

Pelvic Nerve ◽

Injured Nerve

There is still a lack of sufficient research on the mechanism behind neurogenic bladder (NB) treatment. The aim of this study was to explore the effect of overexpressed stromal cell-derived factor-1 (SDF-1) secreted by engineered immortalized mesenchymal stem cells (imMSCs) on the NB. In this study, primary bone marrow mesenchymal stem cells (BM-MSCs) were transfected into immortalized upregulated SDF-1-engineered BM-MSCs (imMSCs/eSDF-1+) or immortalized normal SDF-1-engineered BM-MSCs (imMSCs/eSDF-1−). NB rats induced by bilateral pelvic nerve (PN) transection were treated with imMSCs/eSDF-1+, imMSCs/eSDF-1−, or sham. After a 4-week treatment, the bladder function was assessed by cystometry and voiding pattern analysis. The PN and bladder tissues were evaluated via immunostaining and western blotting analysis. We found that imMSCs/eSDF-1+ expressed higher levels of SDF-1 in vitro and in vivo. The treatment of imMSCs/eSDF-1+ improved NB and evidently stimulated the recovery of bladder wall in NB rats. The recovery of injured nerve was more effective in the NB+imMSCs/eSDF-1+ group than in other groups. High SDF-1 expression improved the levels of vascular endothelial growth factor and basic fibroblast growth factor. Apoptosis was decreased after imMSCs injection, and was detected rarely in the NB+imMSCs/eSDF-1+ group. Injection of imMSCs boosted the expression of neuronal nitric oxide synthase, p-AKT, and p-ERK in the NB+imMSCs/eSDF-1+ group than in other groups. Our findings demonstrated that overexpression of SDF-1 induced additional MSC homing to the injured tissue, which improved the NB by accelerating the restoration of injured nerve in a rat model.

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