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Optimality of mutation and selection in germinal centers [PDF]
The population dynamics theory of B cells in a typical germinal center could play an important role in revealing how affinity maturation is achieved. However, the existing models encountered some conflicts with experiments. To resolve these conflicts, we
Arup K. Chakraborty+56 more
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YY1 Is Required for Germinal Center B Cell Development. [PDF]
YY1 has been implicated as a master regulator of germinal center B cell development as YY1 binding sites are frequently present in promoters of germinal center-expressed genes. YY1 is known to be important for other stages of B cell development including
Atchison, Michael L+6 more
core +15 more sources
Regulation of the Germinal Center Response [PDF]
The germinal center (GC) is a specialized microstructure that forms in secondary lymphoid tissues, producing long-lived antibody secreting plasma cells and memory B cells, which can provide protection against reinfection. Within the GC, B cells undergo somatic mutation of the genes encoding their B cell receptors which, following successful selection ...
Marisa Stebegg+8 more
openaire +4 more sources
Cytokines in the Germinal Center Niche [PDF]
Cytokines are small, secreted, glycoproteins that specifically affect the interactions and communications between cells. Cytokines are produced transiently and locally, acting in a paracrine or autocrine manner, and they are extremely potent, ligating high affinity cell surface receptors to elicit changes in gene expression and protein synthesis in the
Christoph Jandl+3 more
openaire +6 more sources
Germinal centers (GCs) were described more than 125 years ago as compartments within secondary lymphoid organs that contained mitotic cells. Since then, it has become clear that this structure is the site of B cell clonal expansion, somatic hypermutation, and affinity-based selection, the combination of which results in the production of high-affinity ...
Gabriel D, Victora+1 more
openaire +5 more sources
Germinal centers and autoantibodies [PDF]
AbstractPreventing self‐reactive lymphocytes from participating in effector responses is fundamental to maintaining immunological self‐tolerance and circumventing autoimmunity. A range of complementary mechanisms are known to act upon the primary B‐ and T‐cell repertoires to this effect, eliminating or silencing lymphocytes expressing self‐reactive ...
Clara Young+3 more
openaire +3 more sources
Antigen-driven clonal proliferation of B cells within the target tissue of an autoimmune disease: the salivary glands of patients with Sjögren's syndrome [PDF]
Structures resembling germinal centers are seen in the salivary glands of patients with Sjögren's syndrome, but it is not known whether the microenvironment of these cell clusters is sufficient for the induction of a germinal center response.
Berek, C.+4 more
core +2 more sources
Synaptic Interactions in Germinal Centers [PDF]
The germinal center (GC) is a complex, highly dynamic microanatomical niche that allows the generation of high-affinity antibody-producing plasma cells and memory B cells. These cells constitute the basis of long-lived highly protective antibody responses.
Papa, Ilenia+1 more
openaire +5 more sources
Artery tertiary lymphoid organs control multi-layered territorialized atherosclerosis B cell responses in aged ApoE-/- mice [PDF]
Objective: Explore aorta B cell immunity in aged ApoE-/- mice. Approach and Results: Transcript maps, FACS, immunofluorescence analyses, cell transfers, and Ig-ELISPOT assays showed multi-layered atherosclerosis B cell responses in artery tertiary ...
Andreas J.R. Habenicht+13 more
core +1 more source
The Biology of the Germinal Center [PDF]
The immune system requires the production of high affinity antibodies of different subclasses to accomplish its many effector functions. Specific steps in B-cell ontogeny that occur within germinal centers of secondary lymphoid organs create much of the diversity in the immune system.
openaire +3 more sources