Effects of human serun albumin in some biological properties of rhodium(II) complexes



Document title: Effects of human serun albumin in some biological properties of rhodium(II) complexes
Journal: Journal of the Brazilian Chemical Society
Database: PERIÓDICA
System number: 000310927
ISSN: 0103-5053
Authors: 1

2
Institutions: 1Universidade de Sao Paulo, Instituto de Quimica, Sao Paulo. Brasil
2Universidade de Sao Paulo, Instituto de Ciencias Biomedicas, Sao Paulo. Brasil
Year:
Season: Oct
Volumen: 11
Number: 5
Pages: 447-452
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract The affinities for human albumin (HSA) of five rhodium(II) complexes of general formula [Rh2(bridge)4] (bridge = acetate, propionate, butyrate, trifluoroacetate and trifluoroacetamidate) were determined by spectrophotometry. In the case of the alkylcarboxylates, an inverse correlation of affinity with their liposolubilities was observed. Diffusion of the free or protein-bound complexes into Ehrlich cells in vitro seems to be primarily governed by the hydrophobic character of the complex. The complex [Rh2(tfc)4] exhibited affinity towards the protein (K = 214.1) as well as cell partition both in the absence (32.1%) and presence (48.6%) of HSA. The compound HSA: [Rh2(tfc)4] has had its antitumoral action in tumor-bearing Balb-c mice investigated, showing that HSA can be a drug reservoir for the rhodium complex
Portuguese abstract Cinco complexos de ródio(II) de fórmula geral [Rh2(ponte)4] (ponte = acetato, propionato, butirato, trifluoroacetato e trifluoroacetamidato) tiveram suas afinidades em relação à albumina humana (HSA) determinadas por espectrofotometria, observando-se no caso dos alquilcarboxilatos uma correlação inversa com suas lipossolubilidades. A difusão dos complexos livres ou ligados à proteína para células de Ehrlich in vitro parece primordialmente governada pelo caráter hidrofóbico do complexo. O complexo [Rh2(tfc)4] apresentou afinidade pela proteína (K = 214,1), além de partição celular tanto em ausência (32,1%) como na presença (48,6%) de HSA. Desta forma, o composto HSA: [Rh2(tfc)4] teve sua ação antitumoral investigada em camundongos Balb-c portadores de ascite de Ehrlich, mostrando que a HSA pode ser um reservatório para o complexo de ródio
Disciplines: Química,
Medicina
Keyword: Química farmacéutica,
Oncología,
Rodio,
Albúmina humana,
Constante de enlace,
Actividad antitumoral
Keyword: Chemistry,
Medicine,
Medicinal chemistry,
Oncology,
Rhodium,
Human albumin,
Binding constant,
Antitumoral activity
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