clonal stimulation
1Clonal anergy — For the use of anergy in thermodynamics, see Exergy. Anergy is a term in immunobiology that describes a lack of reaction by the body s defense mechanisms to foreign substances, and consists of a direct induction of peripheral lymphocyte tolerance …
2clonal selection — The process whereby one or more clones, ie. cells expressing a particular gene sequence are selected by naturally occurring processes from a mixed population. Generally the clonal selection is for general expansion by mitosis, particularly with… …
3immune 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… …
4B cell — B cells are lymphocytes that play a large role in the humoral immune response (as opposed to the cell mediated immune response, which is governed by T cells). The principal functions of B cells are to make antibodies against antigens, perform the …
5horticulture — horticultural, adj. horticulturist, n. /hawr ti kul cheuhr/, n. 1. the cultivation of a garden, orchard, or nursery; the cultivation of flowers, fruits, vegetables, or ornamental plants. 2. the science and art of cultivating such plants. [1670… …
6Immune 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… …
7Hematopoietic stem cell — HSC=Hematopoietic stem cell, Progenitor=Progenitor cell, L blast=Lymphoblast, Lymphocyte, Mo blast=Monoblast, Monocyte, Myeloblast …
8theory — A reasoned explanation of known facts or phenomena that serves as a basis of investigation by which to seek the truth. SEE ALSO: hypothesis, postulate. [G. theoria, a beholding, speculation, t., fr. theoros, a beholder] adsorption t. of narcosis… …
9Central tolerance — is the mechanism by which newly developing T cells and B cells are rendered non reactive to self[1]. The concept of central tolerance was proposed in 1959 by Joshua Lederberg[2], as part of his general theory of immunity and tolerance, and is… …
10tolerance — 1. The ability to endure or be less responsive to a stimulus, especially over a period of continued exposure. 2. The power of resisting the action of a poison or of taking a drug continuously or in large doses without injurious effects. [L.… …
