CD34+ cells cultured in stem cell factor and interleukin-2 generate CD56+ cells with antiproliferative effects on tumor cell lines

In vitro stimulation of CD34+ cells with IL-2 induces NK cell differentiation. In order to define the stages of NK cell development, which influence their generation from CD34 cells, we cultured G-CSF mobilized peripheral blood CD34+ cells in the presence of stem cell factor and IL-2. After three we...

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Detalles Bibliográficos
Autores principales: Sconocchia, Giuseppe, Provenzano, Maurizio, Rezvani, Katayoun, Li, Jongming, Melenhorst, Jos, Hensel, Nancy, Barrett, A John
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2005
Materias:
Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1087889/
https://www.ncbi.nlm.nih.gov/pubmed/15831091
http://dx.doi.org/10.1186/1479-5876-3-15
Descripción
Sumario:In vitro stimulation of CD34+ cells with IL-2 induces NK cell differentiation. In order to define the stages of NK cell development, which influence their generation from CD34 cells, we cultured G-CSF mobilized peripheral blood CD34+ cells in the presence of stem cell factor and IL-2. After three weeks culture we found a diversity of CD56+ subsets which possessed granzyme A, but lacked the cytotoxic apparatus required for classical NK-like cytotoxicity. However, these CD56+ cells had the unusual property of inhibiting proliferation of K562 and P815 cell lines in a cell-contact dependent fashion.

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