natural antibody
21Lipopolysaccharide — Structure of a lipopolysaccharide Lipopolysaccharides (LPS), also known as lipoglycans, are large molecules consisting of a lipid and a polysaccharide joined by a covalent bond; they are found in the outer membrane of Gram negative bacteria, act… …
22CXCL13 — protein Name = chemokine (C X C motif) ligand 13 (B cell chemoattractant) caption = width = HGNCid = 10639 Symbol = CXCL13 AltSymbols = SCYB13, BLC, BCA 1, BLR1L, ANGIE, ANGIE2 EntrezGene = 10563 OMIM = 605149 RefSeq = NM 006419 UniProt = O43927… …
23T agglutinin — a natural antibody present in normal human sera that causes agglutination of erythrocytes treated with neuraminidase or incubated with neuraminidase producing bacteria causing exposure of the T antigen …
24NK cells — natural killer cells; cells capable of mediating cytotoxic reactions without prior sensitization against the target. NK cells are small lymphocytes without B or T cell surface markers that originate in the bone marrow and develop fully in the… …
25immune system — Anat. a diffuse, complex network of interacting cells, cell products, and cell forming tissues that protects the body from pathogens and other foreign substances, destroys infected and malignant cells, and removes cellular debris: the system… …
26infectious disease — Introduction in medicine, a process caused by a microorganism that impairs a person s health. An infection, by contrast, is the invasion of and replication in the body by any of various microbial agents including bacteria, viruses (virus),… …
27Fc receptor — An Fc receptor is a protein found on the surface of certain cells including natural killer cells, macrophages, neutrophils, and mast cells that contribute to the protective functions of the immune system.Its name is derived from its binding… …
28DNA vaccination — The making of a DNA vaccine. DNA vaccination is a technique for protecting an organism against disease by injecting it with genetically engineered DNA to produce an immunological response. Nucleic acid vaccines are still experimental, and have… …
29Immune 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… …
30Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
