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KMID : 1377020230200020225
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Tissue Engineering and Regenerative Medicine
2023 Volume.20 No. 2 p.225 ~ p.237
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The Efficacy and Safety of a Human Perirenal Adipose Tissue-Derived Stromal Vascular Fraction in an Interstitial Cystitis Rat Model
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Ha Ji-Yong
Suh Jon
Chun So-Young
Lee Jun-Nyung
Ha Yun-Sok
Chung Jae-Wook
Yoon Bo-Hyun
Jeon Min-Ji
Kim Hyun-Tae
Kwon Tae-Gyun
Yoo Eun Sang
Shin Yoon-Mi
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Abstract
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Background : Interstitial cystitis (IC) is a chronic and intractable disease that can severely deteriorate patients’ quality of life. Recently, stem cell therapy has been introduced as a promising alternative treatment for IC in animal models. We aimed to verify the efficacy and safety of the human perirenal adipose tissue-derived stromal vascular fraction (SVF) in an IC rat model.
Methods : From eight-week-old female rats, an IC rat model was established by subcutaneous injection of 200 μg of uroplakin3A. The SVF was injected into the bladder submucosal layer of IC rats, and pain scale analysis, awakening cytometry, and histological and gene analyses of the bladder were performed. For the in vivo safety analysis, genomic DNA purification and histological analysis were also performed to check tumorigenicity and thrombus formation.
Results : The mean pain scores in the SVF 20 μl group were significantly lower on days 7 and 14 than those in the control group, and bladder intercontraction intervals were significantly improved in the SVF groups in a dose-dependent manner. Regeneration of the bladder epithelium, basement membrane, and lamina propria was observed in the SVF group. In the SVF groups, however, bladder fibrosis and the expression of inflammatory markers were not significantly improved compared to those in the control group.
Conclusion : This study demonstrated that a perirenal adipose tissue-derived SVF is a promising alternative for the management of IC in terms of improving bladder pain and overactivity.
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KEYWORD
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Interstitial cystitis, Animal model, Adipose tissue, Stem cell, Stromal vascular fraction
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