do b cells fight viruses?
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B-cells fight bacteria and viruses by making Y-shaped proteins called antibodies, which are specific to each pathogen and are able to lock onto the surface of an invading cell and mark it for destruction by other immune cells.
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B lymphocytes (B cells) are an essential component of the humoral immune response. Produced in the bone marrow, B cells migrate to the spleen and other secondary lymphoid tissues where they mature and differentiate into immunocompetent B cells.
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Abstract. B-cell memory describes the populations of cells that provide long-term humoral immunity: long-lived antibody-secreting plasma cells that reside mainly in the bone marrow and memory B cells.
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Antibodies are produced by specialized white blood cells called B lymphocytes (or B cells).
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B cells primarily function to make antibodies against antigens, act as antigen-presenting cells (APCs), and eventually develop into memory B cells to provide long-term immunity. B cells undergo clonal selection and develop similarly to T cells with some notable differences.
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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.
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B lymphocytes or B cells produce antibodies involved in humoral immunity. B cells are produced in the bone marrow, where the initial stages of maturation occur, and travel to the spleen for final steps of maturation into naïve mature B cells.
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Unlike T cells that recognize digested peptides, B cells recognize their cognate antigen in its native form. The B cell receptor used in recognition can also be secreted to bind to antigens and initiate multiple effector functions such as phagocytosis, complement activation, or neutralization of receptors.
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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.
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The B Cell: B cells mature in the bone marrow or in the lymph node. Bone Marrow: Mature B cells express antibodies on their surface, which are specific for a particular antigen.
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Lifespan. Memory B cells can survive for decades, which gives them the capacity to respond to multiple exposures to the same antigen. The long-lasting survival is hypothesized to be a result of certain anti-apoptosis genes that are more highly expressed in memory B cells than other subsets of B cells.
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Helper T cells do not directly kill infected cells, as cytotoxic T cells do. Instead they help activate cytotoxic T cells and macrophages to attack infected cells, or they stimulate B cells to secrete antibodies. Helper T cells become activated by interacting with antigen-presenting cells,…
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['Monocytes. They have a longer lifespan than many white blood cells and help to break down bacteria.', 'Lymphocytes. They create antibodies to fight against bacteria, viruses, and other potentially harmful invaders.', 'Neutrophils. They kill and digest bacteria and fungi. ... ', 'Basophils. ... ', 'Eosinophils.']
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T cells are a type of white blood cell called lymphocytes. These cells fight off diseases. The two categories of lymphocytes are T cells and B cells. The T cells respond to viral infections and boost immune function of other cells, while the B cells fight bacterial infections.
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Antiviral drugs are different from antibiotics, which fight against bacterial infections.
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They protect you against illness and disease. Think of white blood cells as your immunity cells. In a sense, they are always at war. They flow through your bloodstream to fight viruses, bacteria, and other foreign invaders that threaten your health.
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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.