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Cavernous Nerve Stimulation and Recording of Intracavernous Pressure in a Rat
Published on: April 23, 2018
Intracavernous Injection of Mechanically Extracted Stromal Vascular Fragments Suppresses Endothelial-Mesenchymal
Cheng Shao1, Yi Sun1, Jun Zhao1
1Department of Urology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China, njmu.edu.cn.
Adipose tissue stromal vascular fraction (tSVF) effectively treats erectile dysfunction (ED) in hypertensive rats by preserving penile tissue and inhibiting pathological changes. This therapy shows promise for improving ED in high blood pressure patients.
Area of Science:
- Regenerative Medicine
- Urology
- Cardiovascular Research
Background:
- Hypertension frequently causes erectile dysfunction (ED), impacting quality of life.
- The therapeutic potential of stromal vascular fraction (SVF) for hypertension-related ED is unknown.
Purpose of the Study:
- To evaluate the efficacy of adipose tissue stromal vascular fraction (tSVF) and cellular SVF (cSVF) in a hypertensive rat model of ED.
- To elucidate the underlying mechanisms of tSVF and cSVF treatments.
Main Methods:
- Hypertensive rats received tSVF or cSVF treatments.
- Evaluated intracavernous pressure (ICP), penile tissue histology, and endothelial-mesenchymal transformation (EndMT) markers.
- Utilized in vitro cell models and in vivo cell tracing to assess treatment mechanisms and cell fate.
Main Results:
- tSVF significantly improved erectile function (ICP) and penile tissue health in hypertensive rats.
- tSVF preserved endothelial function, reduced fibrosis, and inhibited EndMT.
- tSVF demonstrated superior longevity and transdifferentiation capacity compared to cSVF, suppressing EndMT via the TGF-β2-Smad2/Smad3 pathway.
Conclusions:
- Adipose tissue stromal vascular fraction (tSVF) is a potent therapeutic agent for hypertension-related erectile dysfunction.
- tSVF functions by inhibiting pathological EndMT through self-differentiation, preserving penile endothelial tissue.
- tSVF represents a promising candidate for clinical application in treating hypertensive ED.
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