Sep 14, 2013

A new platinum(II) compound anticancer drug candidate with selective cytotoxicity for breast cancer cells

Cell Death & Disease
Antonella MuscellaSanto Marsigliante

Abstract

[Pt(O,O'-acac)(γ-acac)(DMS)] (PtAcD) is able to induce apoptosis in various human cancer cells, including the cisplatin-resistant human breast carcinoma MCF-7 cells. Here, to confirm that PtAcD has the potentiality for therapeutic intervention, we studied its effects in primary cultured epithelial breast cells obtained from cancers and also from the corresponding histologically proven non-malignant tissue adjacent to the tumor. We demonstrated that PtAcD (1) is more cytotoxic in cancer than in normal breast cells; (2) activated NAD(P)H oxidase, leading to PKC-ζ and PKC-α translocations; (3) activated antiapoptotic pathways based on the PKC-α, ERK1/2 and Akt kinases; (4) activated PKC-ζ and, only in cancer cell PKC-δ, responsible for the sustained phosphorylation of p38 and JNK1/2, kinases both of which are involved in the mitochondrial apoptotic process. Moreover, crosstalk between ERK/Akt and JNK/p38 pathways affected cell death and survival in PtAcD-treated breast cell. In conclusion, this study adds and extends data that highlight the pharmacological potential of PtAcD as an anti breast cancer drug.

  • References28
  • Citations9

References

  • References28
  • Citations9

Citations

Mentioned in this Paper

Biochemical Pathway
Antineoplastic Agents
MAPK8 gene
MAPK3 wt Allele
Protein Phosphorylation
Protein kinase B gamma
NADPH Oxidase
Cross Reactions
MCF-7 Cells
Cytotoxicity

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