The enhancing effect of homocysteine thiolactone on insulin fibrillation and cytotoxicity of insulin fibril
Reza Yousefi, Shima Jalili, Parnian Alavi, Ali-Akbar Moosavi-Movahedi
Index: Int. J. Biol. Macromol. 51(3) , 291-8, (2012)
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Abstract
Highlights ► Homocysteine thiolactone (HCTL) augmented rate of insulin unfolding, increased solvent-exposed hydrophobic regions and induced a transition from α-helix into predominantly β-sheet structure. ► HCTL markedly enhanced the quantity of insulin fibril formation in both agitating and non-agitating systems. ► Insulin fibrils obtained in the presence of HCTL and those collected earlier in the pathway of insulin fibrillation displayed higher cytotoxicity against cancer cells. ► Results of this study may suggest HCTL as a possible contributing factor to the pathology of insulin fibrils.
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