Bcl-2 and Bcl-XL are indispensable for the late phase of mast cell development from mouse embryonic stem cells

Christine Möller, Mats Karlberg, Magnus Åbrink, Keiichi I. Nakayama, Noboru Motoyama, Gunnar Nilsson

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

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 A1, 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.

Original languageEnglish
Pages (from-to)385-393
Number of pages9
JournalExperimental Hematology
Volume35
Issue number3
DOIs
Publication statusPublished - Mar 1 2007
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Molecular Biology
  • Hematology
  • Genetics
  • Cell Biology
  • Cancer Research

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