Bulletin of Experimental Biology and Medicine

, Volume 164, Issue 3, pp 339–343 | Cite as

Activation of NK Cells in Mixed Cultures of Wharton’s Jelly Mesenchymal Stromal Cells and Peripheral Blood Lymphocytes

  • E. V. Svirshchevskaya
  • A. M. Poltavtsev
  • G. Zh. Os’mak
  • R. A. Poltavtseva

Mesenchymal stromal cells possess immunosuppressive properties that might be used for the therapy of inflammatory diseases of various geneses. The effects of mesenchymal stromal cells depend on their lifetime in the recipient tissues. During heterologous transplantation, mesenchymal stromal cells are eliminated by NK cells. We studied NK cell formation in mixed cultures of Wharton’s jelly mesenchymal stromal cells and peripheral blood lymphocytes from an autologous donor. Lymphocytes were activated by a mitogen or IL-2. The lifetime of mesenchymal stromal cells was estimated by MTT test. Cytotoxic activity and phenotype of NK cells were evaluated by flow cytometry. It was found that activation of NK cells depended on IL-2 and was registered on day 2 of incubation with IL-2. In cultures with mitogen-activated lymphocytes, cytotoxicity was observed after 5-6 days. Cytotoxicity of NK correlated with significant decrease in CD16+ and increase in CD56+ NK and with reduction of mesenchymal stromal cell viability. Thus, the main mechanism of elimination of mesenchymal stromal cells is cytotoxicity of NK cells that depended on IL-2 production.

Key Words

mesenchymal stromal cells lymphocyte activation natural killers 


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • E. V. Svirshchevskaya
    • 1
  • A. M. Poltavtsev
    • 2
  • G. Zh. Os’mak
    • 3
  • R. A. Poltavtseva
    • 3
  1. 1.M. M. Shemyakin and Yu. A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscowRussia
  2. 2.Institute of Applied MechanicsRussian Academy of SciencesMoscowRussia
  3. 3.V. I. Kulakov Research Center of Obstetrics, Gynecology, and PerinatologyMinistry of the Health of the Russian FederationMoscowRussia

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