Antigenic

In immunology, an antigen (Ag) is a molecule, or portion thereof, that can bind to a specific antibody or T-cell receptor. The presence of antigens in the body may trigger an immune response. Antigens can be proteins, peptides (amino acid chains), polysaccharides (chains of simple sugars), lipids, or nucleic acids. Antigens exist on normal cells, cancer cells, parasites, viruses, fungi, and bacteria. Antigens are recognized by antigen receptors, including antibodies and T-cell receptors. Diverse antigen receptors are made by cells of the immune system so that each cell has a specificity for a single antigen. Upon exposure to an antigen, only the lymphocytes that recognize that antigen are activated and expanded, a process known as clonal selection. In most cases, antibodies are antigen-specific, meaning that an antibody can only react to and bind one specific antigen; in some instances, however, antibodies may cross-react to bind more than one antigen. The reaction between an antigen and an antibody is called the antigen-antibody reaction. Antigen can originate either from within the body ("self-protein" or "self antigens") or from the external environment ("non-self"). The immune system identifies and attacks "non-self" external antigens. Antibodies usually do not react with self-antigens due to negative selection of T cells in the thymus and B cells in the bone marrow. The diseases in which antibodies react with self antigens and damage the body's own cells are called autoimmune diseases. Vaccines are examples of antigens in an immunogenic form, which are intentionally administered to a recipient to induce the memory function of the adaptive immune system towards antigens of the pathogen invading that recipient. The vaccine for seasonal influenza is a common example.

orchestral

The Nebulus : Ascendant Part I (Original Novel Soundtrack) - 2022-04-21T00:00:00.000000Z

The Unreleased - 2021-11-30T00:00:00.000000Z

The Nebulus : Burden Of The Sabina (Original Soundtrack) - 2021-04-18T00:00:00.000000Z

Evening EP - 2019-08-08T00:00:00.000000Z

Shift - 2018-01-05T00:00:00.000000Z

The System - 2026-03-01T00:00:00.000000Z

Squirtgun Water - 2026-02-14T00:00:00.000000Z

Chasing Trains - 2026-01-01T00:00:00.000000Z

Filth - 2024-04-01T00:00:00.000000Z

Bombs Away - 2024-03-01T00:00:00.000000Z

Lunar - 2024-02-01T00:00:00.000000Z

3...2...1... - 2024-01-01T00:00:00.000000Z

Gimme a Beet - 2023-12-03T00:00:00.000000Z

Banshee - 2023-11-01T00:00:00.000000Z

Unholy - 2023-09-15T00:00:00.000000Z

Flatline - 2023-06-29T00:00:00.000000Z

The Seven Deadly Sins - 2023-06-04T00:00:00.000000Z

STFU - 2023-05-28T00:00:00.000000Z

This Will Be Your Theme Song - 2023-05-23T00:00:00.000000Z

Execution Omega - 2023-05-18T00:00:00.000000Z

Project Aquarius - 2023-05-05T00:00:00.000000Z

Reality Augmentation - 2023-04-29T00:00:00.000000Z

Never Changed - 2023-04-13T00:00:00.000000Z

In Your Eyes (VIP) - 2023-03-30T00:00:00.000000Z

All Antigenic - 2023-03-14T00:00:00.000000Z