Evidence of preferential protein targets for age-related modifications in peripheral blood lymphocytes

Annals of the New York Academy of Sciences
Sylvie PoggioliBertrand Friguet

Abstract

Oxidatively modified proteins have been analyzed in aging human peripheral blood lymphocytes since protein modification by oxidation and other related pathways are believed to contribute to the intracellular age-related accumulation of damaged proteins, a process that has been associated with the cellular functional deficits that occur with age. Advanced glycation end products (AGE) were quantified and the pattern of glycated proteins analyzed by two-dimensional gel electrophoresis followed by Western blotting using an anti-AGE antibody raised against glycated RNAse. The protein silver stain and the immunoblot patterns were not superimposable, indicating that glycoxidative modifications are targeting only a restricted set of proteins. Modification of proteins with the lipid peroxidation product 4-hydroxy-2-nonenal has also been studied. The patterns of modified proteins have been analyzed using two- dimensional gel electrophoresis followed by Western blotting with an antibody recognizing 4-hydroxy-2-nonenal protein adducts using the same proteomic approach as for glycoxidative modifications. Specific protein targets for these modifications, that might serve as biomarkers of aging lymphocytes, are currently characterized and ide...Continue Reading

References

Dec 23, 1998·Mechanisms of Ageing and Development·D R SellV M Monnier
May 18, 2000·Biochemical Society Transactions·R Aspinall, D Andrew
Jun 23, 2000·Annals of the New York Academy of Sciences·E R Stadtman, R L Levine
Mar 23, 2002·Experimental Gerontology·Jean-François DierickOlivier Toussaint
May 7, 2002·Frontiers in Bioscience : a Journal and Virtual Library·Graham PawelecRafael Solana

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Citations

Feb 21, 2006·Antioxidants & Redox Signaling·Luc Farout, Bertrand Friguet
Oct 19, 2010·Applied and Environmental Microbiology·Evan D PepperSteven E Finkel
Nov 30, 2007·Clinical Interventions in Aging·Tamas FülöpGraham Pawelec
Oct 25, 2008·Mass Spectrometry Reviews·Feliciano Priego Capote, Jean-Charles Sanchez
Dec 7, 2007·Medicinal Research Reviews·G PoliG Leonarduzzi
Apr 12, 2007·Expert Review of Proteomics·Victor S Sharov, Christian Schöneich

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