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Reduced cardiotoxicity and nephrotoxicity with preservation of antitumor activity of doxorubicin entrapped in stable liposomes in the LOU/M Wsl rat. 1984

Q G van Hoesel, and P A Steerenberg, and D J Crommelin, and A van Dijk, and W van Oort, and S Klein, and J M Douze, and D J de Wildt, and F C Hillen

LOU M/Wsl rats inoculated s.c. with 10(4) immunoglobulin immunocytoma cells have a palpable tumor at Day 17. Doxorubicin (DXR) has been entrapped in negatively charged liposomes (lip- DXR) composed of egg phosphatidylcholine, cholesterol, and phosphatidylserine and in positively charged liposomes (lip+ DXR) composed of phosphatidylcholine, cholesterol, and stearylamine. DXR, lip- DXR, and lip+ DXR were administered i.v. (0, 0.25, 0.5, 1.0, and 2.0 mg/kg) at Day 17 for 5 consecutive days and then weekly. Control animals showed progressive tumor growth leading to death 27 days after inoculation. Antitumor activity for all three preparations was dose dependent. DXR and lip- DXR showed the same antitumor activity; lip+ DXR had less antitumor activity. The overall survival of tumor-bearing animals treated with 2.0-mg/kg lip- DXR was significantly prolonged (p less than 0.05) in comparison to the animals treated with 2.0-mg/kg free DXR. Grade III cardiomyopathy was observed 47 days after treatment with free DXR; treatment with lip- DXR resulted in Grade I cardiomyopathy. In animals treated with 1.0-mg/kg and 2.0-mg/kg free DXR urinary albumin concentrations of 10 g/liter were observed. Treatment with 1.0-mg/kg lip- DXR and 1.0-mg/kg lip+ DXR resulted in urinary albumin concentration of less than 3.0 and less than 1.0 g/liter, respectively. Free DXR, 1.0 mg/kg, resulted in a decline of serum albumin concentration from 27.8 +/- 3.2 g/liter to 9.6 +/- 4.2 g/liter. No such decline was observed after treatment with lip- DXR and lip+ DXR. Treatment with a 1.0-mg/kg dose of free DXR resulted in severe glomerular and tubular lesions which were not found after treatment with 1.0-mg/kg lip- DXR and 1.0 mg/kg lip+ DXR. Administration of lip- DXR resulted in lower DXR levels in cardiac and renal tissue compared to administration of free DXR. After administration of lip+ DXR, very low tissue and tumor DXR levels were found. In conclusion, treatment with lip- DXR or lip+ DXR resulted in a prolonged survival, less albuminuria, and higher serum albumin levels. Also, fewer lesions in heart and kidney were found, correlating with lower DXR levels in these organs. Only lip- DXR had the same antitumor effect as free DXR.

UI MeSH Term Description Entries
D007668 Kidney Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. Kidneys
D008081 Liposomes Artificial, single or multilaminar vesicles (made from lecithins or other lipids) that are used for the delivery of a variety of biological molecules or molecular complexes to cells, for example, drug delivery and gene transfer. They are also used to study membranes and membrane proteins. Niosomes,Transferosomes,Ultradeformable Liposomes,Liposomes, Ultra-deformable,Liposome,Liposome, Ultra-deformable,Liposome, Ultradeformable,Liposomes, Ultra deformable,Liposomes, Ultradeformable,Niosome,Transferosome,Ultra-deformable Liposome,Ultra-deformable Liposomes,Ultradeformable Liposome
D008223 Lymphoma A general term for various neoplastic diseases of the lymphoid tissue. Germinoblastoma,Lymphoma, Malignant,Reticulolymphosarcoma,Sarcoma, Germinoblastic,Germinoblastic Sarcoma,Germinoblastic Sarcomas,Germinoblastomas,Lymphomas,Lymphomas, Malignant,Malignant Lymphoma,Malignant Lymphomas,Reticulolymphosarcomas,Sarcomas, Germinoblastic
D009206 Myocardium The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow. Muscle, Cardiac,Muscle, Heart,Cardiac Muscle,Myocardia,Cardiac Muscles,Heart Muscle,Heart Muscles,Muscles, Cardiac,Muscles, Heart
D011919 Rats, Inbred Strains Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding. August Rats,Inbred Rat Strains,Inbred Strain of Rat,Inbred Strain of Rats,Inbred Strains of Rats,Rat, Inbred Strain,August Rat,Inbred Rat Strain,Inbred Strain Rat,Inbred Strain Rats,Inbred Strains Rat,Inbred Strains Rats,Rat Inbred Strain,Rat Inbred Strains,Rat Strain, Inbred,Rat Strains, Inbred,Rat, August,Rat, Inbred Strains,Rats Inbred Strain,Rats Inbred Strains,Rats, August,Rats, Inbred Strain,Strain Rat, Inbred,Strain Rats, Inbred,Strain, Inbred Rat,Strains, Inbred Rat
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
D004317 Doxorubicin Antineoplastic antibiotic obtained from Streptomyces peucetius. It is a hydroxy derivative of DAUNORUBICIN. Adriamycin,Adriablastin,Adriablastine,Adriblastin,Adriblastina,Adriblastine,Adrimedac,DOXO-cell,Doxolem,Doxorubicin Hexal,Doxorubicin Hydrochloride,Doxorubicin NC,Doxorubicina Ferrer Farm,Doxorubicina Funk,Doxorubicina Tedec,Doxorubicine Baxter,Doxotec,Farmiblastina,Myocet,Onkodox,Ribodoxo,Rubex,Urokit Doxo-cell,DOXO cell,Hydrochloride, Doxorubicin,Urokit Doxo cell
D006321 Heart The hollow, muscular organ that maintains the circulation of the blood. Hearts
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
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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