Potentiation of a novel palladium (II) complex lethality with bee venom on the human T-cell acute lymphoblastic leukemia cell line (MOLT-4)
J. venom. anim. toxins incl. trop. dis
;
19: 25, maio 2013. graf
Artículo
en Inglés
| LILACS, VETINDEX
| ID: biblio-954694
ABSTRACT
Background:
Although honeybee venom (BV) has been reported to induce apoptosis in different types of cancerous cells, its synergistic effects with customary anti-cancer drugs remain largely unknown. In the present study, we evaluated the cytotoxic effect of BV alone (as a natural product) and the synergistic cytological effects of this component in combination with [Pd (bpy) (Pi-Pydtc)]NO3 - a novel palladium complex on human T-cell lymphoblastic leukemia cells. To investigate the cytotoxic effect of the BV alone and in combination with palladium complex on MOLT-4 cells MTT assay was performed. In order to determine the apoptotic effects of BV separately and in combination with Pd (II) complex on these cells and its ability to induce apoptosis, morphological examination, flowcytometric analysis and caspase-3 colorimetric assay were done.Results:
We found that BV induced morphological changes, namely nuclear shrinkage, and inhibited MOLT-4 cell proliferation; both effects were dose- and time-dependent. Flow cytometry by Annexin-V antibody demonstrated that BV induced apoptosis in MOLT-4 cells. Furthermore, BV induced apoptosis independently of caspase-3 in these cells. In addition, we proved a clear synergistic effect of BV on [Pd (bpy) (Pi-Pydtc)]NO3. The apoptotic pathway activated by BV in combination with Pd complex was caspase-3-dependent.Conclusions:
These observations provide an explanation for the anti-proliferative properties of BV, and suggest that this agent may be useful for treating lymphoblastic leukemia alone or in combination with chemotherapy drugs pending further investigations on animal models as preclinical tests.(AU)
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Paladio
/
Venenos de Abeja
/
Productos Biológicos
/
Anexinas
/
Citotoxicidad Inmunológica
/
Leucemia-Linfoma Linfoblástico de Células Precursoras
/
Citometría de Flujo
Idioma:
Inglés
Revista:
J. venom. anim. toxins incl. trop. dis
Año:
2013
Tipo del documento:
Artículo
Institución/País de afiliación:
Kharazmi University/IR
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