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Published on: July 19, 2018
Mesenchymal stem cell transplantation may provide a new therapy for ultrafiltration failure in chronic peritoneal
Funda Bastug1, Zübeyde Gündüz, Sebahat Tülpar
1Department of Pediatric Nephrology, Erciyes University Medical Faculty, Kayseri, Turkey.
Background:
The purpose of this study was to investigate possible healing effects of intraperitoneal (IP) mesenchymal stem cell (MSC) transplantation on ultrafiltration failure (UFF) in a chronic rat model of peritoneal dialysis (PD).
Methods:
Rats were initially divided into two groups. The APUF group received once-daily IP injections of 20 mL of 3.86% glucose PD solution for 6 weeks to stimulate the development of UFF and a control group received noinjections. The PUF group was sub-divided into three groups: a PUF-C group, an MSC group and a Placebo (P) group. Peritoneal equilibration tests (PETs) and peritoneal biopsies were performed in the control and PUF-C groups. MSCs were administered by IP injection in the MSC group and the PUF-C and P groups received IP injection of placebo. PETs and peritoneal biopsies were performed in the MSC and P groups at the first [P-1 (and MSC-1 groups] and second [P-2 and MSC-2 groups] week after receiving MSCs or placebo.
Results:
When compared with the control group, ultrafiltration capacity significantly decreased and the submesothelial thickness increased in the PUF-C and P groups (P-1, P-2) (P < 0.05), but there were no differences between the control and MSC groups (MSC-1, MSC-2). The rate of glucose transport was high in the PUF-C and P-2 groups compared with the control group, and D/PCr rates in the PUF-C and P-2 groups were lower than in the control group (P < 0.05). However, D/D0(glucose) was higher and D/P(Cr)was lower in the MSC-2 group than in the PUF-C and P-2 groups (P < 0.05). Transforming growth factor-β (TGF-β) levels were lower in the MSC groups than in the P and PUF-C groups (P < 0.05).
Conclusion:
The PUF-C group had a high permeability UFF. These results showed that MSC transplantation exerted positive effects on UFF in a chronic rat model of PD. MSC transplantation may provide new options for the renewal of the peritoneum in chronic PD patients with UFF.
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