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] .

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 · B cells or B lymphocytes (bursa-derived cells) are essential components of adaptive immune response, primarily responsible for humoral immunity in mammals. B-cell production in humans is a lifelong process that starts in the fetal liver, intrauterine, and bone marrow after birth. [1]

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

Apr 9, 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 …

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).

Nov 10, 2021 · Without T lymphocytes, also called T cells, every exposure could be life-threatening. T cells can wipe out infected or cancerous cells. They also direct the immune response by helping B lymphocytes to eliminate invading pathogens. B cells create antibodies. B lymphocytes, also called B cells, create a type of protein called an antibody.

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.

When naïve or memory B cells are activated by antigen (and helper T cells—not shown), they proliferate and differentiate into effector cells. The effector cells produce and secrete antibodies with a unique antigen-binding (more...)