Publikationsdatum:
2012-01-28
Beschreibung:
During the activation of humoral immune responses, B cells acquire antigen for subsequent presentation to cognate T cells. Here we show that after mouse B cells accumulate antigen, it is maintained in a polarized distribution for extended periods in vivo. Using high-throughput imaging flow cytometry, we observed that this polarization is preserved during B cell division, promoting asymmetric antigen segregation among progeny. Antigen inheritance correlates with the ability of progeny to activate T cells: Daughter cells receiving larger antigen stores exhibit a prolonged capacity to present antigen, which renders them more effective in competing for T cell help. The generation of progeny with differential capacities for antigen presentation may have implications for somatic hypermutation and class switching during affinity maturation and as B cells commit to effector cell fates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thaunat, Olivier -- Granja, Aitor G -- Barral, Patricia -- Filby, Andrew -- Montaner, Beatriz -- Collinson, Lucy -- Martinez-Martin, Nuria -- Harwood, Naomi E -- Bruckbauer, Andreas -- Batista, Facundo D -- Cancer Research UK/United Kingdom -- New York, N.Y. -- Science. 2012 Jan 27;335(6067):475-9. doi: 10.1126/science.1214100.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lymphocyte Interaction Laboratory, London Research Institute, Cancer Research UK, 44 Lincoln's Inn Fields, London, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22282815" target="_blank"〉PubMed〈/a〉
Schlagwort(e):
Animals
;
*Antigen Presentation
;
Antigens/*analysis/*immunology
;
B-Lymphocytes/cytology/*immunology
;
Cell Division
;
Cell Proliferation
;
Cells, Cultured
;
Coculture Techniques
;
Computer Simulation
;
Flow Cytometry
;
*Lymphocyte Activation
;
Mice
;
Mice, Inbred C57BL
;
Mice, Transgenic
;
Models, Immunological
;
Muramidase/analysis/immunology
;
T-Lymphocytes/*immunology
Print ISSN:
0036-8075
Digitale ISSN:
1095-9203
Thema:
Biologie
,
Chemie und Pharmazie
,
Informatik
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
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