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Stem cells transplantation technique has high potential as a novel therapeutic strategy for ED
Date:3/15/2013

, including sham operation (group 1), CN injury (group 2), hMSCs treatment after CN injury (group 3) and nano-hMSCs treatment after CN injury (group 4). Immediately after the CN injury in group 4, nano-hMSCs encircled the injured CN. Erectile response was assessed by CN stimulation at 2, 4 weeks. Thereafter, penile tissue samples were harvested and examined using morphological analysis and immuno-histochemical stain against nerves (nestin, tubulin βIII and map2), endothelium (CD31,vWF) and smooth muscle (smooth muscle actin).

The results of the study revealed that at 2, 4 weeks, transplantation of nano-hMSCs increased the expression levels of cavernous neuronal, endothelial and smooth muscle makers more than hMSCs alone.

Additionally, nano-hMSCs increased the neuronal differentiation of mesenchymal stem cells more than hMSCs alone. At 2, 4 weeks, the mean percent collagen area of caversnosum increased following CN injury and recovered after transplantation of nano-hMSCs more than hMSCs alone.

At 2, 4 weeks, the group with CN injury had significantly lower erectile function than the group without CN injury (p<0.05). The group transplanted with hMSCs showed higher erectile function than the sham operation group (p<0.05), whereas the group transplanted with nano-hMSCs showed higher erectile function than the group with hMSCs alone (p<0.05).

The authors of the study concluded that nano-hMSCs differentiated into neuron-like cells and their transplantation repair erectile dysfunction in the rats with CN injury. These findings have high potential for the development of follow-up research projects.

"The outcomes of the current study could be a starting point for investigating clinical application of autologous adipocyte derived mesenchymal stem cells cultivated on the nonofiber to the injured caverneous nerve after radical prostatectomy," said Prof. Song.

"This is necessary to evaluate the effectiveness and safety
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Contact: Ivanka Moerkerken
i.moerkerken@uroweb.org
31-026-389-0680
European Association of Urology
Source:Eurekalert

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