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A Novel Clinical Grade Isolation Method for Human Kidney Perivascular Stromal Cells

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Published on: August 7, 2017

Stem cell-conditioned medium does not protect against kidney failure.

Yousof Gheisari¹, Naser Ahmadbeigi, Mahmood Naderi

¹Department of Stem Cell Biology, Stem Cell Technology Research Center, Tehran, Iran.

Cell Biology International

|October 19, 2010

Summary

Stem cell conditioned media, including unrestricted somatic stem cells (USSCs) and mesenchymal stem cells (MSCs), did not protect against cisplatin-induced kidney injury in mice. Further research is needed to understand these negative findings.

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Area of Science:

Regenerative Medicine
Stem Cell Biology
Nephrology

Background:

Stem cells secrete bioactive molecules, suggesting paracrine signaling may mediate tissue protection.
Conditioned media from stem cells are explored as a therapeutic strategy for organ injury.
Unrestricted somatic stem cells (USSCs) and mesenchymal stem cells (MSCs) are sources of such protective factors.

Purpose of the Study:

To investigate the renoprotective potential of USSC- and MSC-conditioned media.
To determine if stem cell-derived factors can mitigate kidney damage caused by cisplatin.
To evaluate the efficacy of conditioned media in a mouse model of nephropathy.

Main Methods:

A mouse model of cisplatin-induced nephropathy was established.
Mice were treated with conditioned media from human USSCs and mouse MSCs.
Renal function was assessed via serum urea and creatinine levels.
Histopathological examinations and physical activity scores were used for evaluation.

Main Results:

Neither USSC- nor MSC-conditioned media demonstrated protective effects against kidney injury.
Serum urea and creatinine levels remained elevated in treated groups.
Histopathological damage and reduced physical activity were not improved by the conditioned media.

Conclusions:

The hypothesis that stem cell conditioned media can protect against kidney injury was not supported in this study.
USSC- and MSC-conditioned media were ineffective in preventing or mitigating cisplatin-induced nephropathy.
Further investigation is required to elucidate the reasons for the lack of efficacy and explore alternative therapeutic approaches.