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The effects of bacterial lipopolysaccharide, anti-receptor antibodies and recombinant interferon on mouse B cell cycle progression using 5-bromo-2'-deoxyuridine/hoechst 33258 dye flow cytometry
- Source :
- European Journal of Immunology. 19:1605-1612
- Publication Year :
- 1989
- Publisher :
- Wiley, 1989.
-
Abstract
- Polyclonal stimulation of resting B cells with anti-antigen receptor antibodies [anti-IgM mu chain antibody (anti-mu)] or with bacterial lipopolysaccharide (LPS) stimulates a proportion of B cells to proliferate. Exposure of resting B cells to both LPS and anti-mu activates a larger population of resting B cells than either alone, suggesting a synergistic effect of these two stimuli. Although recombinant interferon (rIFN) either alone or in combination with anti-mu has no apparent proliferative activity (as measured by [3H]thymidine incorporation), application of 5-bromo-2'-deoxyuridine/Hoechst 33258 dye flow cytometry reveals a distinct effect of rIFN on B cell growth. In the presence of anti-mu plus LPS, rIFN causes the majority of B cells to enter the cell cycle (CC), but a subset of B cells remains in the resting stage. Another subset of B cells has extremely rapid CC transit times, with a CC duration of less than 10 h. These studies show that both anti-mu and LPS are competence factors (which move cells from the G0 phase to the G1 phase). LPS acts also as a CC progression factor, while rIFN is a CC potentiating factor.
- Subjects :
- Lipopolysaccharides
medicine.medical_treatment
Immunology
Receptors, Antigen, B-Cell
Biology
Lymphocyte Activation
Flow cytometry
Mice
chemistry.chemical_compound
Interferon
medicine
Animals
Immunology and Allergy
B cell
B-Lymphocytes
medicine.diagnostic_test
Immunoglobulin mu-Chains
Cell growth
Cell Cycle
Cell cycle
Flow Cytometry
Molecular biology
Recombinant Proteins
Deoxyuridine
Cytokine
medicine.anatomical_structure
Bromodeoxyuridine
Biochemistry
chemistry
Immunologic Techniques
biology.protein
Interferons
Antibody
medicine.drug
Subjects
Details
- ISSN :
- 15214141 and 00142980
- Volume :
- 19
- Database :
- OpenAIRE
- Journal :
- European Journal of Immunology
- Accession number :
- edsair.doi.dedup.....b88fe081c726bc245e99e7c9fe90c021