%0 Journal Article
	%A A. N. Gornostaeva and  P. I. Bobyleva and  E. R. Andreeva and  L. B. Buravkova
	%D 2014
	%J International Journal of Bioengineering and Life Sciences
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 93, 2014
	%T Immunomodulatory Effects of Multipotent Mesenchymal Stromal Cells on T-Cell Populations at Tissue-Related Oxygen Level
	%U https://publications.waset.org/pdf/9999482
	%V 93
	%X Multipotent mesenchymal stromal cells (MSCs)
possess immunomodulatory properties. The effect of MSCs on the
crucial cellular immunity compartment – T-cells is of a special
interest. It is known that MSC tissue niche and expected milieu of
their interaction with T- cells are characterized by low oxygen
concentration, whereas the in vitro experiments usually are carried
out at a much higher ambient oxygen (20%). We firstly evaluated
immunomodulatory effects of MSCs on T-cells at tissue-related
oxygen (5%) after interaction implied cell-to-cell contacts and
paracrine factors only. It turned out that MSCs under reduced oxygen
can effectively suppress the activation and proliferation of PHAstimulated
T-cells and can provoke decrease in the production of
proinflammatory and increase in anti-inflammatory cytokines. In
hypoxia some effects were amplified (inhibition of proliferation, antiinflammatory
cytokine profile shift). This impact was more evident
after direct cell-to-cell interaction; lack of intercellular contacts could
revoke the potentiating effect of hypoxia.

	%P 608 - 612