adaptive immunity definition
Adaptive Immunity Definition. Adaptive immunity is an important part of the immune system. It is protection from an infectious disease agent that is mediated by B-and T-lymphocytes following exposure to specific antigen, and characterized by immunological memory.ell-mediated immunity does not involve antibodies but rather involves the activation of macrophages, natural killer cells (NK), antigen-specific cytotoxic T-lymphocytes, and the release of various cytokines in response to an antigen. The adaptive immune system is one of the two main immunity strategies found in vertebrates (the other being the innate immune system). Adaptive immunity creates immunological memory after an initial response to a specific pathogen, leads to an enhanced response to subsequent encounters with that pathogen.This process of acquired immunity is the basis of vaccination.Like the innate system, the adaptive system includes both humoral immunity components and cell-mediated immunity components. Unlike the innate immune system, the adaptive immune system is highly specific to a specific pathogen.daptive immunity creates immunological memory after an initial response to a specific pathogen, leads to an enhanced response to subsequent encounters with that pathogen. This process of acquired immunity is the basis of vaccination. An immune response is generally divided into innate and adaptive immunity.Innate immunity occurs immediately, when circulating innate cells recognize a problem. Adaptive immunity occurs later, as it relies on the coordination and expansion of specific adaptive immune cells.n immune response is generally divided into innate and adaptive immunity. Features of an Immune Response. An immune response is generally divided into innate and adaptive immunity. Innate immunity occurs immediately, when circulating innate cells recognize a problem.Adaptive immunity occurs later, as it relies on the coordination and expansion of specific adaptive immune cells.n immune response is generally divided into innate and adaptive immunity. Adaptive immunity refers to antigen-specific immune response. The adaptive immune response is more complex than the innate. The antigen first must be processed and recognized. Once an antigen has been recognized, the adaptive immune system creates an army of immune cells specifically designed to attack that antigen.Adaptive immunity also includes a memory that makes future responses against a specific antigen more efficient.nce an antigen has been recognized, the adaptive immune system creates an army of immune cells specifically designed to attack that antigen. Adaptive immunity also includes a memory that makes future responses against a specific antigen more efficient. The adaptive immune or specific immune response consists of antibody responses and cell-mediated responses, which are carried out by different lymphocyte cells, B cells and T cells, respectively.ell-mediated immunity does not involve antibodies but rather involves the activation of macrophages, natural killer cells (NK), antigen-specific cytotoxic T-lymphocytes, and the release of various cytokines in response to an antigen. adaptive immunity. The component of immunity that is pathogen-specific and creates memory. It consists of the mechanisms of cell-mediated and antibody-mediated immunity.daptive immunity. The component of immunity that is pathogen-specific and creates memory. It consists of the mechanisms of cell-mediated and antibody-mediated immunity. The component of the immune system in vertebrates involving cells that are modified to attack the specific antigens they encounter, as distinguished from the more nonspecific innate immune system.he adaptive immune system comprises lymphocytes (B cells and T cells) having a small number of genetically encoded proteins that can combine in such a way as to produce an enormous variety of proteins, having the potential to fight any antigen encountered. The adaptive system response destroys invading pathogens and any toxic molecules they produce. Sometimes the adaptive system is unable to distinguish foreign molecules, the effects of this may be hayfever, asthma or any other allergies. Antigens are any substances that elicit the adaptive immune response.The cells that carry out the adaptive immune response are white blood cells known as lymphocytes.daptive immunity creates immunological memory after an initial response to a specific pathogen, leads to an enhanced response to subsequent encounters with that pathogen. This process of acquired immunity is the basis of vaccination. The adaptive immune system comprises lymphocytes (B cells and T cells) having a small number of genetically encoded proteins that can combine in such a way as to produce an enormous variety of proteins, having the potential to fight any antigen encountered.he adaptive immune system comprises lymphocytes (B cells and T cells) having a small number of genetically encoded proteins that can combine in such a way as to produce an enormous variety of proteins, having the potential to fight any antigen encountered.
Is an important part of the immune system. It is protection from an infectious disease agent that is mediated by B-and T-lymphocytes following exposure to specific antigen, and characterized by immunological memory.