Cytoplasm and organelle transfer between mesenchymal multipotent stromal cells and renal tubular cells in co-culture.
Cell-to-cell interactions of human mesenchymal multipotent stromal cells (MMSC) and rat renal tubular cells (RTC) were explored under conditions of co-cultivation. We observed formation of different types of intercellular contacts, including so called tunneling nanotubes. These contacts were shown to be able to provide transfer of cell's contents, including organelles. We documented intercellular exchange with fluorescent probes specific to cytosol, plasmalemma and mitochondria. Initial transport of cellular components was revealed after 3 h of co-culturing, and occurred in two directions--both direct and retrograde as referred to RTC. However, transport of probes toward MMSC was more efficient. One significant result of such transport was appearance of renal-specific Tamm-Horsfall protein in MMSC, indicating induction of their differentiation into kidney tubular cells. We conclude that transfer of cellular compartments between renal and stem cells could provide differentiation of MMSC when transplanted into kidney and result in therapeutic benefits in renal failure.
Plotnikov
Egor Y
EY
A.N.Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russian Federation.
Khryapenkova
Tatyana G
TG
Galkina
Svetlana I
SI
Sukhikh
Gennady T
GT
Zorov
Dmitry B
DB
D000818:Animals; D001692:Biological Transport / Q000502:physiology; D002450:Cell Communication / Q000187:drug effects / Q000502:physiology*; D002478:Cells, Cultured; D018920:Coculture Techniques; D003593:Cytoplasm / Q000187:drug effects / Q000378:metabolism* / Q000502:physiology; D017629:Gap Junctions / Q000187:drug effects / Q000378:metabolism; D006034:Glycyrrhetinic Acid / Q000031:analogs & derivatives / Q000494:pharmacology; D006801:Humans; D007684:Kidney Tubules / Q000166:cytology / Q000378:metabolism / Q000502:physiology* / Q000648:ultrastructure; D059630:Mesenchymal Stem Cells / Q000378:metabolism / Q000502:physiology* / Q000648:ultrastructure; D008928:Mitochondria / Q000378:metabolism / Q000502:physiology; D015388:Organelles / Q000187:drug effects / Q000378:metabolism*; D051381:Rats; D017154:Stromal Cells / Q000378:metabolism / Q000502:physiology / Q000648:ultrastructure
C119129:18alpha-glycyrrhetinic acid; D006034:Glycyrrhetinic Acid