The human immune system comprises several subsystems. These subsystems include a number of cellular processes that help safeguard us from diseases.
The adaptive immune system is one such subsystem, also known as acquired immunity.
This system comprises various systemic cells and processes that help eliminate pathogens and prevent their growth.
Adaptive immunity is one of the two primary immune systems in vertebrates.
Thus, it’s advisable to learn about it. In this blog, we are discussing adaptive immunity definition, types of adaptive immunity, and more.
Going by the definition -
“Adaptive immunity is the immunity that involves specific immune cells and antibodies to attack and destroy foreign invaders. This helps prevent diseases in the future by remembering these substances and mounting a new immune response.”
There are two mechanisms in the adaptive immune response system. The following section discusses those mechanisms.
The human adaptive immune system includes the following two mechanisms:
This refers to the antibody-mediated immunity. In this mechanism, the helper T cells help B cells differentiate into plasma B cells. This leads to the production of antibodies against specific antigens.
Humoral immunity helps fight pathogens that may freely circulate or reside outside the cells.
Antibodies that B cells produce bind with antigens. This helps neutralise them and results in the dissolution of cells.
For example, antibodies occur in the blood, in gastric and mucus secretions, and in breast milk. Basically, humoral immunity is provided by the body fluids.
This is the type of adaptive immunity that functions inside the cells carrying infection. This functions with the help of T lymphocytes.<
The pathogen’s antigens reside either on the cell surface or on antigen-presenting cells.
Additionally, helper T cells release cytokines. This helps active T cells attach to the infectious cells’ MHC-antigen complex, turning the T-cell into a cytotoxic T cell. Further, the dissolution of infectious cells occurs.
Let’s look at some of the major functions of adaptive immunity:
Also read:What is Innate Immunity? An Overview
Here are a few natural tips that can help strengthen your adaptive immune system:
Maintaining a healthy adaptive immunity is crucial to avoid diseases from coming back. In this blog, we discussed adaptive immunity in detail. Hopefully, this helped you.