B cell

American  

noun

Biology.

1. Also called B lymphocyte.  a type of lymphocyte, developed in bone marrow, that circulates in the blood and lymph and, upon encountering a particular foreign antigen, differentiates into a clone of plasma cells that secrete a specific antibody and a clone of memory cells that make the antibody on subsequent encounters.

2. Also called beta cell.  a cell in the islet of Langerhans that produces and secretes insulin.

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B-cell British  

noun

1. another name for B-lymphocyte

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B cell Scientific  

1. Any of the lymphocytes that develop into plasma cells in the presence of a specific antigen. The plasma cells produce antibodies that attack or neutralize the antigen in what is called the humoral immune response. B cells mature in the bone marrow before being released into the blood.

2. Also called B lymphocyte

3. Compare T cell

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B-cell Cultural  

1. One of two main types of immune system lymphocytes (compare T-cell). B-cells originate and develop in the bone marrow and circulate throughout the blood and lymph fluids, recognizing foreign bacteria, viruses, and toxins and binding to them to facilitate their disposal by other cells.

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Etymology

Origin of B cell

1970–75; B cell ( def. 1 ) perhaps B(one-derived) ; B cell ( def. 2 ) B(ursa of Langerhans-derived)

Example Sentences

Their work showed that a triple-therapy combination could be effective against blood cancers that involve B cells, including certain leukemias and lymphomas.

From Science Daily

It works by depleting B cells, which are thought to drive the autoimmune attack in MS.

From BBC

The Johns Hopkins team set out to discover how to transform these immune-cold tumors into "immune hot" ones, which are more responsive to attack by immune cells such as B cells and T cells.

From Science Daily

Using this method, they engineered cells that target CD-19, a protein commonly found on malignant B cells in lymphoma patients.

From Science Daily

Memory B cells manufacture the right antibodies quickly when a familiar microbe appears.

From Los Angeles Times