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We describe the biological properties of NVP-AUY922, a novel resorcinylic isoxazole amide heat shock protein 90 (HSP90) inhibitor. NVP-AUY922 potently inhibits HSP90 (K(d) = 1.7 nmol/L) and proliferation of human tumor cells with GI(50) values of approximately 2 to 40 nmol/L, inducing G(1)-G(2) arrest and apoptosis. Activity is independent of(More)
In rats a maximal tolerated dose of carboplatin (60 mg kg-1, i.v.) caused severe anaemia, leucopenia and thrombocytopenia. These indices of haematological toxicity were also observed with a maximal tolerated dose of cis-platin (6.5 mg kg-1, i.v.), but reductions in blood cell counts were less than those observed with carboplatin. Anaemia was deduced to be(More)
There is overwhelming evidence that in vitro three-dimensional tumor cell cultures more accurately reflect the complex in vivo microenvironment than simple two-dimensional cell monolayers, not least with respect to gene expression profiles, signaling pathway activity and drug sensitivity. However, most currently available three-dimensional techniques are(More)
The expression of the BCL-2 family proteins, BCL-2, BAX, BCL(XL) and BAK have been determined in a panel of 12 human ovarian carcinoma cell lines encompassing a wide range in sensitivity to cisplatin. Whereas BAX, BCL(XL) and BAK levels did not correlate with sensitivity, there was a statistically significant inverse correlation (r = -0.81; P = 0.002)(More)
The comparative nephrotoxicity of i.v. cisplatin, i.v. carboplatin and six p.o. ammine/amine Pt(IV) dicarboxylates was studied in rodents following single MTD treatments. In mice, i.v. cisplatin caused proteinuria (1 g l-1), glycosuria (16.7 mM) and decreased GFR at 4 days, and histological kidney damage with onset at 6 days. In contrast, mice treated with(More)
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