Category: I
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Interleukin-7 (IL-7)
A cytokine (glycoprotein) synthesized in the bone marrow that stimulates early (fetal) proliferation and differentiation of B cells and T cells. May be useful in regenerating lymphoid cells in patients whose immune systems have been devastated by cancer chemotherapy.
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InterIeukin-5 (IL-5)
A cytokine (glycoprotein) that stimulates eosinophil growth.
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Interleukin-4 (IL-4)
A cytokine (glycoprotein) that stimulates production of antibody-producing B cells and promotes cytotoxic T cell (i.e., killer T cells) growth.
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Interleukin-3 (IL-3)
A hematologic growth factor (glycoprotein) cytokine that stimulates the proliferation of a wide range of white blood cells (to combat an infection).
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InterIeukin-2 (IL-2)
Known as T cell growth factor. A cytokine (glycoprotein) secreted by (immune system response) stimulated helper T cells which promotes the proliferation/differentiation of more helper T cells, and promotes the growth of lymphocytes to combat an infection. Interleukin-2 also stimulates the lymphocytes to produce gamma interferon. It is gamma interferon that prompts the cytotoxic T…
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Interleukin-l receptor antagonist (IL-lra)
A glycoprotein (produced by macrophages in response to presence of Interleukin-1, and endotoxin in tissues) that preferentially binds to those cell receptors in the body that typically bind the lymphokine, Interleukin-1 (IL-1). When manufactured by man (e.g., via genetic engineering) and injected into the body in large quantities. IL-Ira can block the deleterious effects of…
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Insulin-like growth factor-1 (IGF-1)
A protein hormone that is produced by the body’s bone cells (when those bone cells have been stimulated by parathyroid hormone and/or estrogen), which is a promoter of bone formation and follicle development (in ovaries). Another function of IGF- 1 is to facilitate the transport of amino acids into cells, and further inhibit protein breakdown…
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Initiation factors
Specific proteins required to initiate synthesis of a polypeptide on ribosomes. Proteins that associate with the small subunit of the ribosome specifically at the stage of the initiation of protein synthesis.
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Ingestion
Taking a substance into the body. For example, the amoeba surrounds a food particle, then ingests the particle. The swallowing of food. The act of taking in food, drink or medicine by the mouth. The process by which a foreign body such as a bacillus is surrounded by a cell. The act of putting food…
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Informational molecules
Molecules containing information in the form of specific sequences of different building blocks. They include proteins and nucleic acids.