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Journal of Molecular Medicine

, Volume 92, Issue 11, pp 1139–1145 | Cite as

Transplantation of mesenchymal stem cells into the renal medulla attenuated salt-sensitive hypertension in Dahl S rat

  • Junping Hu
  • Qing Zhu
  • Min Xia
  • Tai L. Guo
  • Zhengchao Wang
  • Pin-Lan Li
  • Wei-Qing Han
  • Fan Yi
  • Ningjun LiEmail author
Original Article

Abstract

Adult stem cell deficiency has been implicated in the pathogenic mechanism for various diseases. Renal medullary dysfunction is one of the major mechanisms for the development of hypertension in Dahl salt-sensitive (S) rats. The present study first detected a stem cell deficiency in the renal medulla in Dahl S rats and then tested the hypothesis that transplantation of mesenchymal stem cells (MSCs) into the renal medulla improves salt-sensitive hypertension in Dahl S rats. Immunohistochemistry and flowcytometry analyses showed a significantly reduced number of stem cell marker CD133+ cells in the renal medulla from Dahl S rats compared with controls, suggesting a stem cell deficiency. Rat MSCs or control cells were transplanted into the renal medulla in uninephrectomized Dahl S rats, which were then treated with a low- or high-salt diet for 20 days. High-salt-induced sodium retention and hypertension was significantly attenuated in MSC-treated rats compared with control cell-treated rats. Meanwhile, high-salt-induced increases of proinflammatory factors, monocyte chemoattractant protein-1, and interleukin-1β, in the renal medulla were blocked by MSC treatment. Furthermore, immunostaining showed that high-salt-induced immune cell infiltration into the renal medulla was substantially inhibited by MSC treatment. These results suggested that stem cell defect in the renal medulla may contribute to the hypertension in Dahl S rats and that correction of this stem cell defect by MSCs attenuated hypertension in Dahl S rats through anti-inflammation.

Key message

  • Stem cell defect in the renal medulla may contribute to salt-sensitive hypertension

  • Stem cell therapy is a potential therapeutic strategy for salt-sensitive hypertension

  • Normal stem cell inhibits the inflammatory response to high salt in the renal medulla

Keywords

CD133 Inflammation Immune cell 

Notes

Sources of funding

This work was supported by National Institute of Health (grants HL-89563, HL-106042, and DK-54927) and National Nature Science Foundation of China (grant 81328006).

Disclosures

None.

Supplementary material

109_2014_1199_MOESM1_ESM.pdf (420 kb)
ESM 1 PDF 419 kb

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Junping Hu
    • 1
  • Qing Zhu
    • 1
  • Min Xia
    • 1
  • Tai L. Guo
    • 1
  • Zhengchao Wang
    • 2
  • Pin-Lan Li
    • 1
  • Wei-Qing Han
    • 1
  • Fan Yi
    • 3
  • Ningjun Li
    • 1
    Email author
  1. 1.Department of Pharmacology & Toxicology, Medical College of Virginia CampusVirginia Commonwealth UniversityRichmondUSA
  2. 2.Laboratory for Developmental Biology and Neurosciences, College of Life SciencesFujian Normal UniversityFuzhouPeople’s Republic of China
  3. 3.Department of PharmacologyShandong University School of MedicineJinanPeople’s Republic of China

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