Feb 1, 2023 · B cells are a type of white blood cell called lymphocytes. When your immune system detects antigens — markers that indicate a threat like a bacteria or virus has entered your body — your B cells produce antibodies to fight the invader.

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]

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.

Oct 4, 2020 · B cells or B lymphocytes are part of the adaptive immune response. Once activated, these white blood cells produce antibodies. B lymphocytes have further roles as antigen-presenting cells and cytokine secretors.

Mar 6, 2025 · B cell or B lymphocyte is a type of lymphocyte (white blood cells) involved in the humoral immunity of the adaptive immune system as they differentiate into plasma and produce antibodies. Besides, B cells are also considered professional antigen-presenting cells as these can detect antigens present on the surface of bacteria and viruses.

Sep 1, 2008 · A simple definition of B lymphocytes is a population of cells that express clonally diverse cell surface immunoglobulin (Ig) receptors recognizing specific antigenic epitopes.

Apr 12, 2025 · Antibodies are produced by specialized white blood cells called B lymphocytes (or B cells). When an antigen binds to the B-cell surface, it stimulates the B cell to divide and mature into a group of identical cells called a clone. The mature B cells, called plasma cells, secrete millions of antibodies into the bloodstream and lymphatic system.

Three principal classes of B lymphocytes exist in mice and humans, classified on the basis of their ontogeny and anatomic localization: B1 and B2 B lymphocytes, consisting of the marginal zone (MZ) and follicular (FO) B cells (Figure 1).

Jun 20, 2022 · B lymphocytes (B cells): B cells make antibodies. Antibodies are proteins that target viruses, bacteria and other foreign invaders. What do lymphocytes do? Lymphocytes help your body’s immune system fight cancer and foreign viruses and bacteria (antigens). Lymphocytes help your immune system remember every antigen it comes in contact with.

Nov 10, 2021 · B lymphocytes, also called B cells, create a type of protein called an antibody. These antibodies bind to pathogens or to foreign substances, such as toxins, to neutralize them. For example, an antibody can bind to a virus, which prevents it from entering a normal cell and causing infection.