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Type: Artigo de periódico
Title: Antiproliferative Effect Of Benzophenones And Their Influence On Cathepsin Activity.
Author: Murata, Ramiro Mendonça
Yatsuda, Regiane
dos Santos, Marcelo Henrique
Kohn, Luciana K
Martins, Felipe Terra
Nagem, Tanus Jorge
Alencar, Severino Matias
de Carvalho, João Ernesto
Rosalen, Pedro Luiz
Abstract: The antiproliferative activity of two prenylated benzophenones isolated from Rheedia brasiliensis, the triprenylated garciniaphenone and the tetraprenylated benzophenone 7-epiclusianone, was investigated against human cancer cell lines. The antiproliferative activity on melanoma (UACC-62), breast (MCF-7), drug-resistant breast (NCI-ADR), lung/non-small cells (NCI460), ovarian (OVCAR 03), prostate (PC03), kidney (786-0), lung (NCI-460) and tongue (CRL-1624 and CRL-1623) cancer cells was determined using spectrophotometric quantification of the cellular protein content. The effect of these benzophenones on the activity of cathepsins B and G was also investigated. Garciniaphenone displayed cytostatic activity in all cell lines, whereas 7-epiclusianone showed a dose-dependent cytotoxic effect. The IC(50) values for cell proliferation revealed that 7-epiclusianone is more active than garciniaphenone against most of the cell lines. Furthermore, the antiproliferative effects demonstrated by garciniaphenone and 7-epiclusianone were related to their cathepsin inhibiting properties. In conclusion, 7-epiclusianone is a promising naturally occurring agent which displays multiple inhibitory effects which may be working in concert to inhibit cancer cell proliferation in vitro. The putative pathway by which 7-epiclusianone affects cancer cell development may involve cathepsin inhibition.
Subject: Antineoplastic Agents, Phytogenic
Cell Line, Tumor
Cell Proliferation
Enzyme Inhibitors
Inhibitory Concentration 50
Molecular Structure
Plant Extracts
Rights: fechado
Identifier DOI: 10.1002/ptr.2954
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

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