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D. Kieran, B. Kalmar, J.R. Dick, J. Riddoch-Contreras, G. Burnstock, and L. Greensmith Treatment with arimoclomol, a coinducer of heat shock proteins, delays disease progression in ALS mice Nat Med 10 2004 402 405 The paper reports an efficient treatment for the fatal disease amyotrophic lateral sclerosis (Lou Gehrig's disease). The disease, which is caused by a mutation in the Cu/Zn superoxide dismutase-1, is slowed down by arimoclomol, a compound that promotes the induction of Hsp70 and Hsp70 by extending the binding of their major transcriptional factor, the heat shock factor 1, to the DNA. Arimoclomol is a typical multi-target drug, since it also stabilizes membranes and has additional effects.
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A high-affinity conformation of Hsp90 confers tumour selectivity on Hsp90 inhibitors
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A. Kamal, L. Thao, J. Sensintaffar, L. Zhang, M.F. Boehm, L.C. Fritz, and F.J. Burrows A high-affinity conformation of Hsp90 confers tumour selectivity on Hsp90 inhibitors Nature 425 2003 407 410 Hsp90 inhibitors provide an efficient therapeutic approach against various types of cancer. However, the inhibition of this major chaperone should affect normal cells and cause toxic side-effects. The paper explains the high selectivity of Hsp90 inhibitors towards tumor cells by showing that Hsp90 recruits numerous co-chaperones in tumor cells and that the inhibitor binds to this holo-chaperone with a hundred-fold higher affinity. The selective inhibition of Hsp90, which is a chaperone for many oncogenic proteins including mutant p53, Akt, Raf-1, HER-Erb and Bcr-Abl, attacks the malignant signaling network at multiple points.
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Nature
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Kamal, A.1
Thao, L.2
Sensintaffar, J.3
Zhang, L.4
Boehm, M.F.5
Fritz, L.C.6
Burrows, F.J.7
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Mathematical modeling of the eukaryotic heat shock response: Dynamics of the hsp70 promoter
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Rieger TR, Morimoto RI, Hatzimanikatis V: Mathematical modeling of the eukaryotic heat shock response: dynamics of the hsp70 promoter. Biophys J, in press.
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Rieger, T.R.1
Morimoto, R.I.2
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Hsp90 restrains ErbB-2/HER2 signalling by limiting heterodimer formation
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A. Citri, J. Gan, Y. Mosesson, G. Vereb, J. Szollosi, and Y. Yarden Hsp90 restrains ErbB-2/HER2 signalling by limiting heterodimer formation EMBO Rep 5 2004 1165 1170
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The efficiency of multi-target drugs: The network approach might help drug design
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Csermely P, Ágoston V, Pongor S: The efficiency of multi-target drugs: the network approach might help drug design. Trends Pharmacol Sci 2005, in press.
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Csermely, P.1
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