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36 bytes removed ,  14:34, 13 August 2010
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Text replace - "B cell differentiation - WikiBlood" to "B cell differentiation"
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<p>So named as they were initially found in the [[Bursa of Fabricius - Anatomy & Physiology|Bursa of Fabricius]]. They produce antibodies (Ig’s) and are associated with humoral immunity. They represent 20-30% of circulating lymphocytes.
 
<p>So named as they were initially found in the [[Bursa of Fabricius - Anatomy & Physiology|Bursa of Fabricius]]. They produce antibodies (Ig’s) and are associated with humoral immunity. They represent 20-30% of circulating lymphocytes.
 
B cells have B cell receptors (BCR), or antigen binding sites. This is [[IgM]] when the B cell is immature, changing to [[IgD]] when the cell is mature. B cells also express MHC II, CD9, CD,19, CD20 and CD24.</p>
 
B cells have B cell receptors (BCR), or antigen binding sites. This is [[IgM]] when the B cell is immature, changing to [[IgD]] when the cell is mature. B cells also express MHC II, CD9, CD,19, CD20 and CD24.</p>
<p>Under antigenic stimulation they differentiate into [[B cell differentiation - WikiBlood#Plasma cells|plasma cells]] and [[B cell differentiation - WikiBlood#Memory cells|memory cells]].</p>
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<p>Under antigenic stimulation they differentiate into [[B cell differentiation#Plasma cells|plasma cells]] and [[B cell differentiation#Memory cells|memory cells]].</p>
    
B-cells also act as Antigen-Presenting Cells (APCs) by presenting digested fragments to T-cells on [[MHC - WikiBlood#MHC II|MHC II]].
 
B-cells also act as Antigen-Presenting Cells (APCs) by presenting digested fragments to T-cells on [[MHC - WikiBlood#MHC II|MHC II]].
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For more on B cell differentiation, see [[B cell differentiation - WikiBlood|here]].
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For more on B cell differentiation, see [[B cell differentiation|here]].
    
[[Category:Lymphocytes|C]]
 
[[Category:Lymphocytes|C]]
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