clonal expansion

an immune response in which lymphocytes stimulated by antigen proliferate and amplify the population of relevant cells.

Medical dictionary. 2011.

Look at other dictionaries:

  • Clonal 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 …   Wikipedia

  • clonal 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… …   Dictionary of molecular biology

  • expansion — 1. An increase in size as of chest or lungs. 2. The spreading out of any structure, as a tendon. 3. An expanse; a wide area. [L. ex pando, pp. pansus, to spread out] clonal e. (klo′nal) production of daughter cells all arising originally from a… …   Medical dictionary

  • Klonale Expansion — Die Klon Selektionstheorie (engl. clonal selection theory) beschreibt in der Immunologie das Phänomen, dass alle Zellen, die spezielle Antikörper produzieren können (B Lymphozyt), wie auch ihre korrespondierenden Zellen (T Lymphozyt), alle Klone… …   Deutsch Wikipedia

  • Clone (cell biology) — Clonal expansion and monoclonal versus polyclonal proliferation A clone is a group of identical cells that share a common ancestry, meaning they are derived from the same mother cell.[1] Clonality implies the state of a c …   Wikipedia

  • Somatic evolution in cancer — Somatic evolution is the accumulation of mutations in the cells of a body (the soma) during a lifetime, and the effects of those mutations on the fitness of those cells. Somatic evolution is important in the process of aging as well as the… …   Wikipedia

  • Hematopoietic stem cell — HSC=Hematopoietic stem cell, Progenitor=Progenitor cell, L blast=Lymphoblast, Lymphocyte, Mo blast=Monoblast, Monocyte, Myeloblast …   Wikipedia

  • Immunosuppressive drug — For a list of immunosuppressive drugs, see the transplant rejection page .Immunosuppressive drugs, immunosuppressive agents, or immunosuppressants are drugs that inhibit or prevent activity of the immune system. They are used in immunosuppressive …   Wikipedia

  • Carcinogenesis — For the scientific journal, see Carcinogenesis (journal). Cancers are caused by a series of mutations. Each mutation alters the behavior of the cell somewhat. Carcinogenesis or oncogenesis is literally the creation of cancer. It is a process by… …   Wikipedia

  • T-cell large granular lymphocyte leukemia — Infobox Disease Name = PAGENAME Caption = DiseasesDB = ICD10 = ICD9 = ICDO = 9831/3 OMIM = MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = T cell large granular lymphocyte leukemia is a disease that exhibits an unexplained, chronic (> 6… …   Wikipedia

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