Biomaterial Database

Autoinduction of androgen receptor mRNA in primary cultures of hamster (Mesocricetus auratus) harderian gland cells. 1996

B Varriale

Dipartimento di Fisiologia Umana e Funzioni Biologiche Integrate F. Bottazzi, Facoltà di Medicina e Chirurgia, II Università di Napoli, Naples, Italy.

The Harderian gland (hg) is a gland which occupies a large portion of the orbital cavity. In many species, a sexual dimorphism occurs, which suggests a gonadal steroid control of the hg. The present study examines, in primary cultures of hamster hg cells, the regulation of the androgen receptor mRNA (AR mRNA) expression. In dose-response experiments measuring the expression of AR mRNA, testosterone (T) (10(-12) M) induced a 1-fold increase of AR mRNA compared with unexposed cells, and this effect reached its zenith (6.2-fold) when cells were exposed to 10(-8) M T. In other experiments, cells were exposed or not to different drugs [T, T + flutamide (F), F, T + cycloheximide (Cy), Cy] for different times (up to 96 hr). These experiments showed a time-dependent increase of AR mRNA in the cells exposed to T, while in the cells exposed to F, T + F, T + Cy, Cy, and control (unexposed), a time-dependent decrease of AR mRNA was observed. The size of the hamster AR mRNA in these in vitro experiments was similar to that observed in other mammals (9.5 kb). It is concluded that primary cultures of hamster hg cells are a valuable model for studying hg cell activity and that in this system T autoinduces its own receptor.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008647	Mesocricetus	A genus in the order Rodentia and family Cricetidae. One species, Mesocricetus auratus or golden hamster is widely used in biomedical research.	Hamsters, Golden,Hamsters, Golden Syrian,Hamsters, Syrian,Mesocricetus auratus,Syrian Golden Hamster,Syrian Hamster,Golden Hamster,Golden Hamster, Syrian,Golden Hamsters,Golden Syrian Hamsters,Hamster, Golden,Hamster, Syrian,Hamster, Syrian Golden,Syrian Hamsters
D010761	Phosphorus Radioisotopes	Unstable isotopes of phosphorus that decay or disintegrate emitting radiation. P atoms with atomic weights 28-34 except 31 are radioactive phosphorus isotopes.	Radioisotopes, Phosphorus
D011500	Protein Synthesis Inhibitors	Compounds which inhibit the synthesis of proteins. They are usually ANTI-BACTERIAL AGENTS or toxins. Mechanism of the action of inhibition includes the interruption of peptide-chain elongation, the blocking the A site of ribosomes, the misreading of the genetic code or the prevention of the attachment of oligosaccharide side chains to glycoproteins.	Protein Synthesis Antagonist,Protein Synthesis Antagonists,Protein Synthesis Inhibitor,Antagonist, Protein Synthesis,Antagonists, Protein Synthesis,Inhibitor, Protein Synthesis,Inhibitors, Protein Synthesis,Synthesis Antagonist, Protein,Synthesis Inhibitor, Protein
D011944	Receptors, Androgen	Proteins, generally found in the CYTOPLASM, that specifically bind ANDROGENS and mediate their cellular actions. The complex of the androgen and receptor migrates to the CELL NUCLEUS where it induces transcription of specific segments of DNA.	Androgen Receptors,5 alpha-Dihydrotestosterone Receptor,Androgen Receptor,Dihydrotestosterone Receptors,Receptor, Testosterone,Receptors, Androgens,Receptors, Dihydrotestosterone,Receptors, Stanolone,Stanolone Receptor,Testosterone Receptor,5 alpha Dihydrotestosterone Receptor,Androgens Receptors,Receptor, 5 alpha-Dihydrotestosterone,Receptor, Androgen,Receptor, Stanolone,Stanolone Receptors,alpha-Dihydrotestosterone Receptor, 5
D012015	Reference Standards	A basis of value established for the measure of quantity, weight, extent or quality, e.g. weight standards, standard solutions, methods, techniques, and procedures used in diagnosis and therapy.	Standard Preparations,Standards, Reference,Preparations, Standard,Standardization,Standards,Preparation, Standard,Reference Standard,Standard Preparation,Standard, Reference
D002478	Cells, Cultured	Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.	Cultured Cells,Cell, Cultured,Cultured Cell
D003513	Cycloheximide	Antibiotic substance isolated from streptomycin-producing strains of Streptomyces griseus. It acts by inhibiting elongation during protein synthesis.	Actidione,Cicloheximide
D004305	Dose-Response Relationship, Drug	The relationship between the dose of an administered drug and the response of the organism to the drug.	Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D005485	Flutamide	An antiandrogen with about the same potency as cyproterone in rodent and canine species.	Niftolid,Apimid,Apo-Flutamide,Chimax,Cytamid,Drogenil,Euflex,Eulexin,Eulexine,Fluken,Flulem,Flumid,Fluta 1A Pharma,Fluta-GRY,Fluta-cell,Flutamin,Flutandrona,Flutaplex,Flutexin,Fugerel,Grisetin,Niftolide,Novo-Flutamide,Oncosal,PMS-Flutamide,Prostacur,Prostica,Prostogenat,SCH-13521,Testotard,Apo Flutamide,ApoFlutamide,Fluta GRY,Fluta cell,FlutaGRY,Flutacell,Novo Flutamide,NovoFlutamide,PMS Flutamide,SCH 13521,SCH13521