PMID- 15718418 OWN - NLM STAT- MEDLINE DCOM- 20050712 LR - 20210206 IS - 0006-4971 (Print) IS - 0006-4971 (Linking) VI - 105 IP - 11 DP - 2005 Jun 1 TI - Identification and characterization of undifferentiated mast cells in mouse bone marrow. PG - 4282-9 AB - Sequential immunomagnetic isolation with 2 monoclonal antibodies was used to purify and characterize an undifferentiated mast cell in adult mouse bone marrow that had not been previously recognized. This cell represents 0.02% of the cells in the bone marrow, is CD34(+), CD13(+), and c-kit(+), and does not express FcepsilonRI. However, by polymerase chain reaction (PCR) the cell contains message for the alpha and beta subunits of FcepsilonRI, mast cell-specific proteases, and carboxypeptidase A. Morphologically, this cell has a large nucleus, little cytoplasm, few cytoplasmic organelles, and no cytoplasmic granules. In vitro, in the presence of interleukin-3 (IL-3) and stem cell factor (SCF) these cells differentiate only into a granulated mast cell that now expresses CD13, c-kit, mast cell-specific gangliosides, FcepsilonRI, and binds immunoglobulin E (IgE). When injected into lethally irradiated mice, these cells are able to reconstitute the mast cell population in the spleen. FAU - Jamur, Maria Celia AU - Jamur MC AD - Faculdade de Medicina de Ribeirao Preto, Departamento de Biologia Celular e Molecular e Bioagentes Patogenicos, Universidade de Sao Paulo, Ribeirao Preto, SP, Brasil. FAU - Grodzki, Ana Cristina G AU - Grodzki AC FAU - Berenstein, Elsa H AU - Berenstein EH FAU - Hamawy, Majed M AU - Hamawy MM FAU - Siraganian, Reuben P AU - Siraganian RP FAU - Oliver, Constance AU - Oliver C LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20050217 PL - United States TA - Blood JT - Blood JID - 7603509 RN - 0 (Antigens, CD34) RN - 0 (RNA, Messenger) RN - 0 (Receptors, IgE) RN - EC 3.4.11.2 (CD13 Antigens) SB - IM MH - Animals MH - Antigens, CD34 MH - Bone Marrow Cells MH - CD13 Antigens MH - Cell Differentiation MH - Female MH - Immunomagnetic Separation MH - Immunophenotyping MH - Male MH - Mast Cells/chemistry/*cytology/transplantation MH - Mice MH - Mice, Inbred BALB C MH - Organelles/ultrastructure MH - RNA, Messenger/analysis MH - Receptors, IgE/genetics EDAT- 2005/02/19 09:00 MHDA- 2005/07/13 09:00 CRDT- 2005/02/19 09:00 PHST- 2005/02/19 09:00 [pubmed] PHST- 2005/07/13 09:00 [medline] PHST- 2005/02/19 09:00 [entrez] AID - S0006-4971(20)53466-6 [pii] AID - 10.1182/blood-2004-02-0756 [doi] PST - ppublish SO - Blood. 2005 Jun 1;105(11):4282-9. doi: 10.1182/blood-2004-02-0756. Epub 2005 Feb 17.