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Bcl-2 and Bcl-XL are indispensable for the late phase of mast cell development from mouse embryonic stem cells
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology.
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2007 (English)In: Experimental Hematology, ISSN 0301-472X, E-ISSN 1873-2399, Vol. 35, no 3, 385-393 p.Article in journal (Refereed) Published
Abstract [en]

Objective. The aim of this study was to determine the importance of the prosurvival factors Bcl-2 and Bcl-XL for mast cell development and survival. Methods. bcl-x-/- and bcl-2-/- mouse embryonic stem cells were maintained in medium supplemented with either interleukin (IL)-3 or IL-3 in combination with stem cell factor (SCF) to favor mast cell development. The development of Bcl-2 family deficient embryonic stem cell-derived mast cells (ESMCs) was monitored and Bcl-2 family gene expression and cell numbers were analyzed. Results. Deficiency in either bcl-x or bcl-2 totally inhibited the development of ESMCs when IL-3 alone was used as a mast cell growth factor. Intriguingly, when IL-3 was used in combination with SCF, the ESMCs developed normally the first 2 weeks but thereafter the cell numbers dropped drastically. The remaining ESMCs express mouse mast cell protease 1, suggesting a mucosal-like phenotype. ESMCs lacking bcl-x or bcl-2 exhibited strong expression of Al, another prosurvival Bcl-2 family member. Conclusion. For the first time we provide direct evidence that both bcl-x and bcl-2 are indispensable for mast cell survival during the late phase of their development.

Place, publisher, year, edition, pages
2007. Vol. 35, no 3, 385-393 p.
Keyword [en]
Animals, Cell Differentiation/drug effects/physiology, Cell Proliferation/drug effects, Cell Survival/drug effects/physiology, Cells; Cultured, Gene Expression Profiling, Genotype, Interleukin-3/pharmacology, Mast Cells/*cytology/drug effects/*metabolism, Mice, Mice; Knockout, Proto-Oncogene Proteins/genetics/*physiology, Proto-Oncogene Proteins c-bcl-2/genetics, RNA; Messenger/genetics, Reverse Transcriptase Polymerase Chain Reaction, Stem Cell Factor/pharmacology, Stem Cells/*cytology/drug effects/*metabolism, bcl-X Protein/genetics/*physiology
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-15816DOI: 10.1016/j.exphem.2006.11.008PubMedID: 17309819OAI: oai:DiVA.org:uu-15816DiVA: diva2:43587
Available from: 2008-03-06 Created: 2008-03-06 Last updated: 2010-05-03Bibliographically approved

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Publisher's full textPubMedhttp://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Retrieve&list_uids=17309819&dopt=Citation

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Åbrink, Magnus
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