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B cell
B cells
, also known as
B lymphocytes
, are a type of
white blood cell
of the
lymphocyte
subtype. They function in the
humoral immunity
component of the
adaptive immune system
by
secreting
antibodies
. Additionally, B cells
present antigen
(they are also classified as professional
antigen-presenting cells (APCs)
) and secrete
cytokines
.
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