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Purification of human basophils and mast cells by multistep separation technique and mAb to CDw17 and CD117/c-kit.
- Source :
-
Journal of immunological methods [J Immunol Methods] 1995 May 11; Vol. 182 (1), pp. 115-29. - Publication Year :
- 1995
-
Abstract
- Basophils and mast cells represent distinct cell lineages within the hemopoietic system. Based on the unique cell surface antigen profile of both cells, we have established methods which allow the reproducible purification to homogeneity (> 99%) of normal human basophil granulocytes from the peripheral blood and of mast cells from human dispersed tissues. Basophils (n = 9) were purified by current counterflow elutriation followed by depletion of monocytes with CD14 mAb conjugated to magnetic beads, and subsequent cell sorting for CD217+ cells. Basophil purity was 99.5 +/- 0.4% (range 98.7-99.9%). Mast cells were obtained from lung (n = 6), uterus (n = 1), mastocytosis bone marrow (n = 2), and human foreskin (n = 2). Mast cells were purified by collagenase digestion followed by current counterflow elutriation and sorting with CD117/c-kit mAb. Mast cell purity was 99.4 +/- 0.7% (range: 97.5-99.9%). Purified cells were more than 90% viable and were able to release histamine on induction with IgE plus anti-IgE. Furthermore, the PCR technique could be applied on pure cells and confirmed expression of high affinity IgE receptor (Fc epsilon R1) alpha chain mRNA. Thus, by combining isolation techniques including elutriation, magnetic cell depletion and cell sorting with mAb, functionally intact normal human basophils and mast cells can be enriched to homogeneity.
- Subjects :
- Antibodies, Monoclonal immunology
Base Sequence
Basophils cytology
Cells, Cultured
Flow Cytometry
Histamine Release
Humans
Immunoglobulin E immunology
Mast Cells cytology
Molecular Sequence Data
Polymerase Chain Reaction
Proto-Oncogene Proteins immunology
Proto-Oncogene Proteins c-kit
Receptor Protein-Tyrosine Kinases immunology
Receptors, Colony-Stimulating Factor immunology
Receptors, IgE genetics
Ultracentrifugation methods
Antigens, CD immunology
Basophils immunology
Cell Separation methods
Mast Cells immunology
Subjects
Details
- Language :
- English
- ISSN :
- 0022-1759
- Volume :
- 182
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Journal of immunological methods
- Publication Type :
- Academic Journal
- Accession number :
- 7539467
- Full Text :
- https://doi.org/10.1016/0022-1759(95)00034-8