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Abstract:

1. 1. The porphyrinogenic ability of several antineoplasics used in the therapy of the different cancers was evaluated. The action of cyclophosphamide, busulfan and 5-fluorouracil on the amount and nature of the accumulated hepatic porphyrins and on the activity of δ-aminolaevulinate synthase(ALA-S). were estimated at different doses and times of drug treatment in 17-day-old chick embryos. 2. 2. It was observed that cyclophosphamide produces a significant increase in the accumulation of hepatic porphyrins at different doses as well as in the activity of the ALA-S, at all the incubation times. Cyclophosphamide alters the pattern of porphyrins accumulated in the liver, where a coproporphyrin: protoporphyrin ratio higher than in the controls can be observed. 3. 3. Busulfan increased the hepatic porphyrins accumulated in the liver but to a lesser degree than cyclophosphamide. 4. 4. 5-Fluorouracil did not modify the hepatic porphyrin content when it was administered at doses up to 40 mg/embryo. 5. 5. When the embryos were injected with busulfan or 5-fluorouracil no significant differences were observed in the activity of ALA-S up to 11 hr of incubation. 6. 6. These results indicate that cyclophosphamide has a remarkable porphyrinogenic capacity in chick embryo while busulfan. notwithstancling the fact that it alters the haem pathway, it does so to a degree that does not impair the regulation of ALA-S activity. Fluorouracil seems to be non porphyrinogenic in this system, up to 40 mg/embryo. © 1988.

Registro:

Documento: Artículo
Título:Effect of some antineoplasics on metabolic heme pathway
Autor:Wainstok De Calmanovici, R.; San Martin De Viale, L.C.
Filiación:Laboratorio de Porfirias Experinientales y Metabolismo del Hemo, Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Núñez 1428, Buenos Aires, Argentina
Palabras clave:5 aminolevulinate synthase; antineoplastic agent; busulfan; cyclophosphamide; fluorouracil; heme; porphyrin; 5 aminolevulinate synthase; busulfan; cyclophosphamide; fluorouracil; porphyrin; animal; article; chick embryo; drug effect; liver; metabolism; chicken; nonhuman; porphyrin synthesis; 5-Aminolevulinate Synthetase; Animal; Antineoplastic Agents; Busulfan; Chick Embryo; Cyclophosphamide; Fluorouracil; Heme; Liver; Porphyrins; Support, Non-U.S. Gov't
Año:1988
Volumen:20
Número:9
Página de inicio:1015
Página de fin:1020
DOI: http://dx.doi.org/10.1016/0020-711X(88)90190-5
Título revista:International Journal of Biochemistry
Título revista abreviado:Int. J. Biochem.
ISSN:0020711X
CODEN:IJBOB
CAS:5 aminolevulinate synthase, 9037-14-3; busulfan, 55-98-1; cyclophosphamide, 50-18-0; fluorouracil, 51-21-8; heme, 14875-96-8; porphyrin, 24869-67-8; 5-Aminolevulinate Synthetase, EC 2.3.1.37; Antineoplastic Agents; Busulfan, 55-98-1; Cyclophosphamide, 50-18-0; Fluorouracil, 51-21-8; Heme, 14875-96-8; Porphyrins
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_0020711X_v20_n9_p1015_WainstokDeCalmanovici.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0020711X_v20_n9_p1015_WainstokDeCalmanovici

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Citas:

---------- APA ----------
Wainstok De Calmanovici, R. & San Martin De Viale, L.C. (1988) . Effect of some antineoplasics on metabolic heme pathway. International Journal of Biochemistry, 20(9), 1015-1020.
http://dx.doi.org/10.1016/0020-711X(88)90190-5
---------- CHICAGO ----------
Wainstok De Calmanovici, R., San Martin De Viale, L.C. "Effect of some antineoplasics on metabolic heme pathway" . International Journal of Biochemistry 20, no. 9 (1988) : 1015-1020.
http://dx.doi.org/10.1016/0020-711X(88)90190-5
---------- MLA ----------
Wainstok De Calmanovici, R., San Martin De Viale, L.C. "Effect of some antineoplasics on metabolic heme pathway" . International Journal of Biochemistry, vol. 20, no. 9, 1988, pp. 1015-1020.
http://dx.doi.org/10.1016/0020-711X(88)90190-5
---------- VANCOUVER ----------
Wainstok De Calmanovici, R., San Martin De Viale, L.C. Effect of some antineoplasics on metabolic heme pathway. Int. J. Biochem. 1988;20(9):1015-1020.
http://dx.doi.org/10.1016/0020-711X(88)90190-5