Biomaterial Database

Calcium modifies the accumulation and retention of daunorubicin by Ehrlich ascites carcinoma. 1984

S L Murray, and E M Du Vall, and L M Slater

Verapamil restores daunorubicin sensitivity to daunorubicin resistant Ehrlich ascites carcinoma but is without effect when used with daunorubicin in daunorubicin sensitive parental Ehrlich ascites tumor. Energy dependent daunorubicin efflux is more active in drug resistant than in drug sensitive cells. However, daunorubicin retention decreases equivalently in drug resistant and sensitive cells with increasing calcium levels in the presence of both intact and interrupted outward transport. Therefore, (1) daunorubicin accumulation and retention in Ehrlich ascites carcinoma cells is influenced by at least two independent mechanisms and (2) it is likely that verapamil modifies daunorubicin activity in drug resistant tumor variants by mechanisms beyond calcium inhibition.

UI	MeSH Term	Description	Entries
D008807	Mice, Inbred BALB C	An inbred strain of mouse that is widely used in IMMUNOLOGY studies and cancer research.	BALB C Mice, Inbred,BALB C Mouse, Inbred,Inbred BALB C Mice,Inbred BALB C Mouse,Mice, BALB C,Mouse, BALB C,Mouse, Inbred BALB C,BALB C Mice,BALB C Mouse
D002118	Calcium	A basic element found in nearly all tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes.	Coagulation Factor IV,Factor IV,Blood Coagulation Factor IV,Calcium-40,Calcium 40,Factor IV, Coagulation
D002286	Carcinoma, Ehrlich Tumor	A transplantable, poorly differentiated malignant tumor which appeared originally as a spontaneous breast carcinoma in a mouse. It grows in both solid and ascitic forms.	Ehrlich Ascites Tumor,Ascites Tumor, Ehrlich,Ehrlich Tumor Carcinoma,Tumor, Ehrlich Ascites
D003630	Daunorubicin	A very toxic anthracycline aminoglycoside antineoplastic isolated from Streptomyces peucetius and others, used in treatment of LEUKEMIA and other NEOPLASMS.	Daunomycin,Rubidomycin,Rubomycin,Cerubidine,Dauno-Rubidomycine,Daunoblastin,Daunoblastine,Daunorubicin Hydrochloride,NSC-82151,Dauno Rubidomycine,Hydrochloride, Daunorubicin,NSC 82151,NSC82151
D004351	Drug Resistance	Diminished or failed response of an organism, disease or tissue to the intended effectiveness of a chemical or drug. It should be differentiated from DRUG TOLERANCE which is the progressive diminution of the susceptibility of a human or animal to the effects of a drug, as a result of continued administration.	Resistance, Drug
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001386	Azides	Organic or inorganic compounds that contain the -N3 group.	Azide
D001693	Biological Transport, Active	The movement of materials across cell membranes and epithelial layers against an electrochemical gradient, requiring the expenditure of metabolic energy.	Active Transport,Uphill Transport,Active Biological Transport,Biologic Transport, Active,Transport, Active Biological,Active Biologic Transport,Transport, Active,Transport, Active Biologic,Transport, Uphill
D051379	Mice	The common name for the genus Mus.	Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D019810	Sodium Azide	A cytochrome oxidase inhibitor which is a nitridizing agent and an inhibitor of terminal oxidation. (From Merck Index, 12th ed)	NaN3,Azide, Sodium