Biomaterial Database

Binding and biological actions of insulin-like growth factors on human arterial smooth muscle cells. 1982

B Pfeifle, and H H Ditschuneit, and H Ditschuneit

Insulin-like growth factors (IGF) were isolated from human serum and compared with some biological actions of IGF supplied by Dr. J. Hapf, Zürich. Both factors were potent mitogens. They stimulated DNA-, RNA- and protein synthesis in cultivated human arterial smooth muscle cells. Furthermore, they enhanced the aminoacid transport. Our protein fraction (IGF Ulm) had a more potent biological activity than IGF (Zürich). Specific binding receptors for IGF (Zürich) on human arterial smooth muscle cells could be demonstrated. Specific binding of 125I-IGF (Zürich) was 10%. Half-maximal displacement was achieved by 250 ng/ml of unlabeled IGF (Zürich), by 1.2 micrograms/ml of IGF (Ulm), by 6.3 micrograms/ml of pro-insulin and by 17.8 micrograms/ml of insulin. In separate studies we could demonstrate that sera of normal adults, diabetic, acromegalic and hypophysectomized patients showed different growth-promoting activity in human arterial smooth muscle cells.

UI	MeSH Term	Description	Entries
D007016	Hypophysectomy	Surgical removal or destruction of the hypophysis, or pituitary gland. (Dorland, 28th ed)	Hypophysectomies
D007328	Insulin	A 51-amino acid pancreatic hormone that plays a major role in the regulation of glucose metabolism, directly by suppressing endogenous glucose production (GLYCOGENOLYSIS; GLUCONEOGENESIS) and indirectly by suppressing GLUCAGON secretion and LIPOLYSIS. Native insulin is a globular protein comprised of a zinc-coordinated hexamer. Each insulin monomer containing two chains, A (21 residues) and B (30 residues), linked by two disulfide bonds. Insulin is used as a drug to control insulin-dependent diabetes mellitus (DIABETES MELLITUS, TYPE 1).	Iletin,Insulin A Chain,Insulin B Chain,Insulin, Regular,Novolin,Sodium Insulin,Soluble Insulin,Chain, Insulin B,Insulin, Sodium,Insulin, Soluble,Regular Insulin
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009131	Muscle, Smooth, Vascular	The nonstriated involuntary muscle tissue of blood vessels.	Vascular Smooth Muscle,Muscle, Vascular Smooth,Muscles, Vascular Smooth,Smooth Muscle, Vascular,Smooth Muscles, Vascular,Vascular Smooth Muscles
D011956	Receptors, Cell Surface	Cell surface proteins that bind signalling molecules external to the cell with high affinity and convert this extracellular event into one or more intracellular signals that alter the behavior of the target cell (From Alberts, Molecular Biology of the Cell, 2nd ed, pp693-5). Cell surface receptors, unlike enzymes, do not chemically alter their ligands.	Cell Surface Receptor,Cell Surface Receptors,Hormone Receptors, Cell Surface,Receptors, Endogenous Substances,Cell Surface Hormone Receptors,Endogenous Substances Receptors,Receptor, Cell Surface,Surface Receptor, Cell
D001769	Blood	The body fluid that circulates in the vascular system (BLOOD VESSELS). Whole blood includes PLASMA and BLOOD CELLS.
D004261	DNA Replication	The process by which a DNA molecule is duplicated.	Autonomous Replication,Replication, Autonomous,Autonomous Replications,DNA Replications,Replication, DNA,Replications, Autonomous,Replications, DNA
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000172	Acromegaly	A condition caused by prolonged exposure to excessive HUMAN GROWTH HORMONE in adults. It is characterized by bony enlargement of the FACE; lower jaw (PROGNATHISM); hands; FEET; HEAD; and THORAX. The most common etiology is a GROWTH HORMONE-SECRETING PITUITARY ADENOMA. (From Joynt, Clinical Neurology, 1992, Ch36, pp79-80)	Inappropriate Growth Hormone Secretion Syndrome (Acromegaly),Somatotropin Hypersecretion Syndrome (Acromegaly),Inappropriate GH Secretion Syndrome (Acromegaly),Hypersecretion Syndrome, Somatotropin (Acromegaly),Hypersecretion Syndromes, Somatotropin (Acromegaly),Somatotropin Hypersecretion Syndromes (Acromegaly),Syndrome, Somatotropin Hypersecretion (Acromegaly),Syndromes, Somatotropin Hypersecretion (Acromegaly)