Journal
JOURNAL OF LIPOSOME RESEARCH
Volume 27, Issue 2, Pages 90-98Publisher
TAYLOR & FRANCIS LTD
DOI: 10.3109/08982104.2016.1166510
Keywords
Cord blood hematopoietic stem cells; liposomes; thin-lipid film hydration method; umbical cord stem cells (UCSC); wound healing
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Liposomes are used for encapsulation of the active compounds in different therapies, with the increasing frequency. The important areas of clinical applications of liposomes are cancer targeted treatment, antibiotic delivery or regenerative medicine. The liposomes can transfer both hydrophilic and hydrophobic compounds and have the lipid bilayer which imitates the cell membrane. Liposomes additionally may extend half-live period of drugs and protect them against the elimination in different ways, such as phagocytosis, enzymatic cleavage or exclusion by detoxification. The size and charge of liposomes play an important role in drug distribution and absorption into the cell. Limited data is available on the effects of liposomes on stem cells and progenitor cells. In this article, we examined the effect of charged conventional liposomes on growth of mesenchymal and blood stem cells isolated from umbilical cord. The data suggest a likelihood, that positively charged liposomes could impair stem cell growth and metabolism. Different methodological approaches allowed for the selection of negatively charged liposomes for further experiments, as the only type of liposomes which has the lowest cytotoxicity and does not affect hematopoietic cell proliferation.
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