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B cell - Revision history
2026-05-13T06:32:28Z
Revision history for this page on the wiki
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https://wikimd.org/index.php?title=B_cell&diff=6341444&oldid=prev
Prab: CSV import
2025-02-23T21:12:54Z
<p>CSV import</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:12, 23 February 2025</td>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">== B cell ==</ins></div></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">File:Blausen_0624_Lymphocyte_B_cell_(crop).png|Lymphocyte B cell</ins></div></td></tr>
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Prab
https://wikimd.org/index.php?title=B_cell&diff=5350847&oldid=prev
Prab: CSV import
2024-03-03T13:25:59Z
<p>CSV import</p>
<p><b>New page</b></p><div>'''B cell''' or '''B lymphocyte''' is a type of [[white blood cell]] that plays a significant role in the [[immune system]] by producing [[antibodies]]. Named after the bursa of Fabricius, an organ in birds where they were first discovered, B cells are essential for [[adaptive immunity]].<br />
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== Origin and Development ==<br />
B cells originate from [[hematopoietic stem cells]] (HSCs) in the [[bone marrow]]. They undergo a series of differentiation and maturation stages in the bone marrow, becoming fully mature B cells when they express a unique type of [[antigen receptor]] on their cell surface.<br />
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== Function ==<br />
The primary function of B cells is to produce [[antibodies]] against antigens, which are foreign substances in the body. When a B cell encounters its specific antigen, it proliferates and differentiates into [[plasma cells]] and [[memory B cells]]. Plasma cells are the antibody factories of the immune system, while memory B cells provide long-term immunity by remembering the same antigen for faster antibody production in future infections.<br />
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== B Cell Subtypes ==<br />
There are several subtypes of B cells, including [[follicular B cells]], [[marginal zone B cells]], and [[B1 cells]], each with distinct functions and locations in the body.<br />
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== Role in Disease ==<br />
Abnormal B cell function can lead to various diseases. Overactive B cells can cause [[autoimmune diseases]], while underactive B cells can result in [[immunodeficiency diseases]]. B cells also play a role in the development of [[lymphoma]], a type of cancer.<br />
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== See Also ==<br />
* [[T cell]]<br />
* [[Immune system]]<br />
* [[Antibody]]<br />
* [[Autoimmune disease]]<br />
* [[Immunodeficiency]]<br />
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[[Category:Immunology]]<br />
[[Category:Cell biology]]<br />
[[Category:Hematology]]<br />
{{Immunology-stub}}</div>
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