PMID- 23707560 OWN - NLM STAT- MEDLINE DCOM- 20130923 LR - 20161126 IS - 0006-3002 (Print) IS - 0006-3002 (Linking) VI - 1832 IP - 10 DP - 2013 Oct TI - Global protein and histone arginine methylation are affected in a tissue-specific manner in a rat model of diet-induced hyperhomocysteinemia. PG - 1708-14 LID - S0925-4439(13)00175-0 [pii] LID - 10.1016/j.bbadis.2013.05.013 [doi] AB - Accumulation of S-adenosylhomocysteine (AdoHcy), the homocysteine (Hcy) precursor and a potent methyltransferase inhibitor, may mediate the neurological and vascular complications associated with elevated Hcy. Protein arginine methylation is a crucial post-translational modification and generates monomethylarginine (MMA) and dimethylarginine (asymmetric, ADMA, and symmetric, SDMA) residues. We aimed at determining whether protein arginine methylation status is disturbed in an animal model of diet-induced hyperhomocysteinemia (HHcy). HHcy was achieved by dietary manipulation of Wistar rats: methionine-enrichment (HM), B vitamins deficiency (LV), or both (HMLV). Total Hcy, S-adenosylmethionine (AdoMet), AdoHcy, MMA, ADMA and SDMA concentrations in plasma or tissues (heart, brain and liver) were determined by adequate high-performance liquid chromatography or liquid chromatography-electrospray ionization-tandem mass spectrometry methods. Moreover, in tissues from the HMLV group, histone arginine asymmetric dimethylation was evaluated by Western blotting, and the histone methylation marks H3R17me2a, H3R8me2a and H4R3me2a were studied. HHcy was induced by all special diets, with elevation of AdoHcy concentrations in liver (LV and HMLV) and heart (HMLV) (all versus control). Plasma ADMA levels were lower in all hyperhomocysteinemic animals. Protein-incorporated ADMA levels were decreased in brain and in heart (both for the LV and HMLV groups). Moreover, in brain of animals exposed to the HMLV diet, the H3R8me2a mark was profoundly decreased. In conclusion, our results show that diet-induced Hcy elevation disturbs global protein arginine methylation in a tissue-specific manner and affects histone arginine methylation in brain. Future research is warranted to disclose the functional implications of the global protein and histone arginine hypomethylation triggered by Hcy elevation. CI - Copyright (c) 2013 Elsevier B.V. All rights reserved. FAU - Esse, Ruben AU - Esse R AD - Department of Clinical Chemistry, VU University Medical Center, Amsterdam, The Netherlands. FAU - Florindo, Cristina AU - Florindo C FAU - Imbard, Apolline AU - Imbard A FAU - Rocha, Monica S AU - Rocha MS FAU - de Vriese, An S AU - de Vriese AS FAU - Smulders, Yvo M AU - Smulders YM FAU - Teerlink, Tom AU - Teerlink T FAU - Tavares de Almeida, Isabel AU - Tavares de Almeida I FAU - Castro, Rita AU - Castro R FAU - Blom, Henk J AU - Blom HJ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130522 PL - Netherlands TA - Biochim Biophys Acta JT - Biochimica et biophysica acta JID - 0217513 RN - 0 (Histones) RN - 0 (Proteins) RN - 94ZLA3W45F (Arginine) SB - IM MH - Animals MH - Arginine/*metabolism MH - *Diet MH - *Disease Models, Animal MH - Female MH - Histones/chemistry/*metabolism MH - Hyperhomocysteinemia/etiology/*metabolism MH - Methylation MH - Proteins/*metabolism MH - Rats MH - Rats, Wistar OTO - NOTNLM OT - B vitamins deficiency OT - H3R8 methylation OT - Homocysteine OT - Protein methylation OT - S-adenosylhomocysteine EDAT- 2013/05/28 06:00 MHDA- 2013/09/24 06:00 CRDT- 2013/05/28 06:00 PHST- 2012/12/10 00:00 [received] PHST- 2013/05/08 00:00 [revised] PHST- 2013/05/13 00:00 [accepted] PHST- 2013/05/28 06:00 [entrez] PHST- 2013/05/28 06:00 [pubmed] PHST- 2013/09/24 06:00 [medline] AID - S0925-4439(13)00175-0 [pii] AID - 10.1016/j.bbadis.2013.05.013 [doi] PST - ppublish SO - Biochim Biophys Acta. 2013 Oct;1832(10):1708-14. doi: 10.1016/j.bbadis.2013.05.013. Epub 2013 May 22.