B cells, also known as B lymphocytes, are a type of white blood cell of the lymphocyte subtype. [1] . They function in the humoral immunity component of the adaptive immune system. [1] . B cells produce antibody molecules which may be either secreted or inserted into the plasma membrane where they serve as a part of B-cell receptors. [2] .

Feb 1, 2023 · B cells are a type of white blood cell that makes infection-fighting proteins called antibodies. B cells are an important part of your immune system, your body’s defense against harmful pathogens (viruses, bacteria and parasites) that enter your body and make you sick.

Oct 4, 2020 · What are B Cells? B cells are lymphocytes – a type of white blood cell. They are the result of multipotential cell differentiation in the bone marrow. Every blood cell is derived from …

Oct 13, 2024 · Through this process, B cells acquire 2 essential features of adaptive immunity—the ability to distinguish between self and non-self (recognizing foreign antigens rather than self-antigens) and the ability to form a memory of previous antigen encounters.

Mar 6, 2025 · Explore B cell development, types, and functions in adaptive immunity, including antibody production and antigen presentation.

Apr 12, 2025 · B cell, one of the two types of lymphocytes (the other is the T cells). All lymphocytes begin their development in the bone marrow. B cells are involved in so-called humoral immunity. On encountering a foreign substance (antigen), the B cell differentiates into a plasma cell, which secretes

Sep 1, 2008 · Some of the landmark discoveries that led to our current understanding of B lymphocytes as the source of protective innate and adaptive antibodies are highlighted in this essay.

B cells are at the centre of the adaptive humoral immune system and are responsible for mediating the production of antigen-specific immunoglobulin (Ig) directed against invasive pathogens (typically known as antibodies).

Memory and plasma B cells produce antibodies including immunoglobulin (Ig) IgM, IgG, and IgE. This page describes the development of mature B cell types and tools to study B cells including cell culture, immunoassays, and cell markers for immunophenotyping.

Here we review current understanding of how B cell responses are initiated, the different paths to generate short- and long-lived plasma cells, germinal center cells, and memory cells, and how each path impacts antibody diversity, selectivity and affinity.