antigenic deletion


antigenic deletion
loss or masking of antigenic determinants in daughter cells of cells whose parent tissue normally carries them; it may result from neoplastic or other mutational change in the parent tissue or may be due to loss or repression of genetic material from the cell.

Medical dictionary. 2011.

Look at other dictionaries:

  • ABO blood group system — ABO redirects here. For other uses, see ABO (disambiguation). H substance redirects here. For use in inflammation, see histamine. ABO blood group antigens present on red blood cells and IgM antibodies present in the serum The ABO blood group… …   Wikipedia

  • Antigen — Each antibody binds to a specific antigen; an interaction similar to a lock and key. An antigen is a foreign molecule that, when introduced into the body, triggers the production of an antibody by the immune system. The immune system will then… …   Wikipedia

  • Major histocompatibility complex — The major histocompatibility complex (MHC) is a large genomic region or gene family found in most vertebrates that encodes MHC molecules. MHC molecules play an important role in the immune system and autoimmunity. Proteins are continually… …   Wikipedia

  • Superantigen — [ thumb|Figure 1. Schematic of Superantigen stimulation compared to normal antigen presentation and activation [2] .] Superantigens (SAgs) are secreted proteins (exotoxins) that exhibit highly potent lymphocyte transforming (mitogenic) activity… …   Wikipedia

  • Molecular mimicry — is defined as the theoretical possibility that sequence similarities between foreign and self peptides are sufficient to result in the cross activation of autoreactive T or B cells by pathogen derived peptides. Despite the promiscuity of several… …   Wikipedia

  • GYPA — Glycophorin A (MNS blood group), also known as GYPA, is a human gene.cite web | title = Entrez Gene: GYPA glycophorin A (MNS blood group)| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=2993| accessdate = ] …   Wikipedia

  • Immune system — A scanning electron microscope image of a single neutrophil (yellow), engulfing anthrax bacteria (orange). An immune system is a system of biological structures and processes within an organism that protects against disease by identifying and… …   Wikipedia

  • List of biology topics — Biology is the study of life and its processes. Biologists study all aspects of living things, including all of the many life forms on earth and the processes in them that enable life. These basic processes include the harnessing of energy, the… …   Wikipedia

  • GYPB — Glycophorin B (MNS blood group), also known as GYPB, is a human gene.cite web | title = Entrez Gene: GYPB glycophorin B (MNS blood group)| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=2994| accessdate = ] …   Wikipedia

  • drift — 1. A gradual movement, as from an original position. 2. A gradual change in the value of a random variable over time as a result of various factors, some random and some systematic effects of trend, manipulation, etc. antigenic d. the …   Medical dictionary


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.