thymosin

thy·mo·sin

T0199575 (thī′mə-sĭn)n. Any of a group of small proteins, originally isolated from the thymus, that are involved in a variety of functions including angiogenesis, cell migration, regulation of actin polymerization, and the immune response.

thymosin

(ˈθaɪməsɪn) n (Biology) a hormone secreted by the thymus which stimulates the immune system

thy•mo•sin

(ˈθaɪ mə sɪn)

n. a hormone, produced by the thymus gland, that promotes the development of T cells from stem cells. [1966; appar. < Greek thýmos thymus + -ine²]

Thesaurus

Noun

thymosin - hormone secreted by the thymus; stimulates immunological activity of lymphoid tissueendocrine, hormone, internal secretion - the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect

thymosin

enUK

Thymosin

A polypeptide hormone synthesized and secreted by the endodermally derived reticular cells of the thymus gland. Thymosin exerts its actions in several loci: (1) in the thymus gland, either on precursor stem cells derived from fetal liver or from bone marrow, or on immature thymocytes, and (2) in peripheral sites, on either thymic-derived lymphoid cells or on precursor stem cells. The precursor stem cells, which are immunologically incompetent whether in the thymus or in peripheral sites, have been designated as predetermined T cells or T₀ cells, and mature through stages termed T₁ and T₂, each reflecting varying degrees of immunological competence. Thymosin promotes or accelerates the maturation of T₀ cells to T₁ cells as well as to the final stage of a T₂. In addition to this maturation influence, the hormone also increases the number of total lymphoid cells by accelerating the rate of proliferation of both immature and mature lymphocytes. See Immunity

thymosin

[′thī·mə·sən] (immunology) Any of a group of hormones secreted by the thymus gland that stimulate lymphocyte production within the thymus and confer on lymphocytes elsewhere in the body the capacity to respond to antigenic stimulation.

thymosin

[thi´mo-sin] a humoral factor secreted by the thymus; it promotes the maturation of T-lymphocytes.

thy·mo·sin

(thī'mō-sin), A polypeptide hormone that restores T-cell function in a thymectomized animal.
See also: thymic lymphopoietic factor.

thymosin

(thī′mə-sĭn)n. Any of a group of small proteins, originally isolated from the thymus, that are involved in a variety of functions including angiogenesis, cell migration, regulation of actin polymerization, and the immune response.

thy·mo·sin

(thī'mō-sin) A polypeptide hormone that restores T-cell function in a thymectomized animal.
See also: thymic lymphopoietic factor

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Words related to thymosin

noun hormone secreted by the thymus

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