Fine-scale haplotype mapping of MUT, AACS, SLC6A15 and PRKCA genes indicates association with insulin resistance of metabolic syndrome and relationship with branched chain amino acid metabolism or regulation

Sara Haydar, Florin Grigorescu, Mădălina Vintilă, Yannick Cogne, Corinne Lautier, Yildiz Tutuncu, Jean Frederic Brun, Jean Marie Robine, Michel Pugeat, Christophe Normand, Patrick Poucheret, Monica Livia Gheorghiu, Carmen Georgescu, Corin Badiu, Nicoleta Băculescu, Eric Renard, Dorina Ylli, Stephanie Badiou, Thibault Sutra, Jean Paul CristolJacques Mercier, Ramon Gomis, Josep Maria Macias, Serghey Litvinov, Elza Khusnutdinova, Catalina Poiana, Renato Pasquali, Davide Lauro, Giorgio Sesti, Sabrina Prudente, Vincenzo Trischitta, Agathocles Tsatsoulis, Sonia Abdelhak, Abdelhamid Barakat, Akila Zenati, Agron Ylli, Ilhan Satman, Timo Kanninen, Yves Rinato, Sasa Missoni

Research output: Contribution to journalArticle

Abstract

Branched chain amino acids (BCAA) are essential elements of the human diet, which display increased plasma levels in obesity and regained particular interest as potential biomarkers for development of diabetes. To define determinants of insulin resistance (IR) we investigated 73 genes involved in BCAA metabolism or regulation by fine-scale haplotype mapping in two European populations with metabolic syndrome. French and Romanians (n = 465) were genotyped for SNPs (Affymetrix) and enriched by imputation (BEAGLE 4.1) at 1000 genome project density. Initial association hits detected by sliding window were refined (HAPLOVIEW 3.1 and PHASE 2.1) and correlated to homeostasis model assessment (HOMA IR ) index, in vivo insulin sensitivity (S I ) and BCAA plasma levels (ANOVA). Four genomic regions were associated with IR located downstream of MUT, AACS, SLC6A15 and PRKCA genes (P between 9.3 and 3.7 x 10 −5 ). Inferred haplotypes up to 13 SNPs length were associated with IR (e.g. MUT gene with P < 4.9 x 10 −5 ; Bonferroni 1.3 x 10 −3 ) and synergistic to HOMA IR . SNPs in the same regions were also associated with one order of magnitude lower P values (e.g. rs20167284 in the MUT gene with P < 1.27 x 10 −4 ) and replicated in Mediterranean samples (n = 832). In French, influential haplotypes (OR > 2.0) were correlated with in vivo insulin sensitivity (1/S I ) except for SLC6A15 gene. Association of these genes with BCAA levels was variable, but influential haplotypes confirmed implication of MUT from BCAA metabolism as well as a role of regulatory genes (AACS and PRKCA) and suggested potential changes in transcriptional activity. These data drive attention towards new regulatory regions involved in IR in relation with BCAA and show the ability of haplotypes in phased DNA to detect signals complimentary to SNPs, which may be useful in designing genetic markers for clinical applications in ethnic populations.

Original languageEnglish
Article numbere0214122
JournalPLoS One
Volume14
Issue number3
DOIs
Publication statusPublished - Mar 1 2019

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Branched Chain Amino Acids
branched chain amino acids
amino acid metabolism
metabolic syndrome
Metabolism
insulin resistance
Haplotypes
Insulin Resistance
haplotypes
Genes
Association reactions
Insulin
genes
Single Nucleotide Polymorphism
Plasmas
Nucleic Acid Regulatory Sequences
Biomarkers
Regulator Genes
Nutrition
Medical problems

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Fine-scale haplotype mapping of MUT, AACS, SLC6A15 and PRKCA genes indicates association with insulin resistance of metabolic syndrome and relationship with branched chain amino acid metabolism or regulation. / Haydar, Sara; Grigorescu, Florin; Vintilă, Mădălina; Cogne, Yannick; Lautier, Corinne; Tutuncu, Yildiz; Brun, Jean Frederic; Robine, Jean Marie; Pugeat, Michel; Normand, Christophe; Poucheret, Patrick; Gheorghiu, Monica Livia; Georgescu, Carmen; Badiu, Corin; Băculescu, Nicoleta; Renard, Eric; Ylli, Dorina; Badiou, Stephanie; Sutra, Thibault; Cristol, Jean Paul; Mercier, Jacques; Gomis, Ramon; Macias, Josep Maria; Litvinov, Serghey; Khusnutdinova, Elza; Poiana, Catalina; Pasquali, Renato; Lauro, Davide; Sesti, Giorgio; Prudente, Sabrina; Trischitta, Vincenzo; Tsatsoulis, Agathocles; Abdelhak, Sonia; Barakat, Abdelhamid; Zenati, Akila; Ylli, Agron; Satman, Ilhan; Kanninen, Timo; Rinato, Yves; Missoni, Sasa.

In: PLoS One, Vol. 14, No. 3, e0214122, 01.03.2019.

Research output: Contribution to journalArticle

Haydar, S, Grigorescu, F, Vintilă, M, Cogne, Y, Lautier, C, Tutuncu, Y, Brun, JF, Robine, JM, Pugeat, M, Normand, C, Poucheret, P, Gheorghiu, ML, Georgescu, C, Badiu, C, Băculescu, N, Renard, E, Ylli, D, Badiou, S, Sutra, T, Cristol, JP, Mercier, J, Gomis, R, Macias, JM, Litvinov, S, Khusnutdinova, E, Poiana, C, Pasquali, R, Lauro, D, Sesti, G, Prudente, S, Trischitta, V, Tsatsoulis, A, Abdelhak, S, Barakat, A, Zenati, A, Ylli, A, Satman, I, Kanninen, T, Rinato, Y & Missoni, S 2019, 'Fine-scale haplotype mapping of MUT, AACS, SLC6A15 and PRKCA genes indicates association with insulin resistance of metabolic syndrome and relationship with branched chain amino acid metabolism or regulation', PLoS One, vol. 14, no. 3, e0214122. https://doi.org/10.1371/journal.pone.0214122
Haydar, Sara ; Grigorescu, Florin ; Vintilă, Mădălina ; Cogne, Yannick ; Lautier, Corinne ; Tutuncu, Yildiz ; Brun, Jean Frederic ; Robine, Jean Marie ; Pugeat, Michel ; Normand, Christophe ; Poucheret, Patrick ; Gheorghiu, Monica Livia ; Georgescu, Carmen ; Badiu, Corin ; Băculescu, Nicoleta ; Renard, Eric ; Ylli, Dorina ; Badiou, Stephanie ; Sutra, Thibault ; Cristol, Jean Paul ; Mercier, Jacques ; Gomis, Ramon ; Macias, Josep Maria ; Litvinov, Serghey ; Khusnutdinova, Elza ; Poiana, Catalina ; Pasquali, Renato ; Lauro, Davide ; Sesti, Giorgio ; Prudente, Sabrina ; Trischitta, Vincenzo ; Tsatsoulis, Agathocles ; Abdelhak, Sonia ; Barakat, Abdelhamid ; Zenati, Akila ; Ylli, Agron ; Satman, Ilhan ; Kanninen, Timo ; Rinato, Yves ; Missoni, Sasa. / Fine-scale haplotype mapping of MUT, AACS, SLC6A15 and PRKCA genes indicates association with insulin resistance of metabolic syndrome and relationship with branched chain amino acid metabolism or regulation. In: PLoS One. 2019 ; Vol. 14, No. 3.
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T1 - Fine-scale haplotype mapping of MUT, AACS, SLC6A15 and PRKCA genes indicates association with insulin resistance of metabolic syndrome and relationship with branched chain amino acid metabolism or regulation

AU - Haydar, Sara

AU - Grigorescu, Florin

AU - Vintilă, Mădălina

AU - Cogne, Yannick

AU - Lautier, Corinne

AU - Tutuncu, Yildiz

AU - Brun, Jean Frederic

AU - Robine, Jean Marie

AU - Pugeat, Michel

AU - Normand, Christophe

AU - Poucheret, Patrick

AU - Gheorghiu, Monica Livia

AU - Georgescu, Carmen

AU - Badiu, Corin

AU - Băculescu, Nicoleta

AU - Renard, Eric

AU - Ylli, Dorina

AU - Badiou, Stephanie

AU - Sutra, Thibault

AU - Cristol, Jean Paul

AU - Mercier, Jacques

AU - Gomis, Ramon

AU - Macias, Josep Maria

AU - Litvinov, Serghey

AU - Khusnutdinova, Elza

AU - Poiana, Catalina

AU - Pasquali, Renato

AU - Lauro, Davide

AU - Sesti, Giorgio

AU - Prudente, Sabrina

AU - Trischitta, Vincenzo

AU - Tsatsoulis, Agathocles

AU - Abdelhak, Sonia

AU - Barakat, Abdelhamid

AU - Zenati, Akila

AU - Ylli, Agron

AU - Satman, Ilhan

AU - Kanninen, Timo

AU - Rinato, Yves

AU - Missoni, Sasa

PY - 2019/3/1

Y1 - 2019/3/1

N2 - Branched chain amino acids (BCAA) are essential elements of the human diet, which display increased plasma levels in obesity and regained particular interest as potential biomarkers for development of diabetes. To define determinants of insulin resistance (IR) we investigated 73 genes involved in BCAA metabolism or regulation by fine-scale haplotype mapping in two European populations with metabolic syndrome. French and Romanians (n = 465) were genotyped for SNPs (Affymetrix) and enriched by imputation (BEAGLE 4.1) at 1000 genome project density. Initial association hits detected by sliding window were refined (HAPLOVIEW 3.1 and PHASE 2.1) and correlated to homeostasis model assessment (HOMA IR ) index, in vivo insulin sensitivity (S I ) and BCAA plasma levels (ANOVA). Four genomic regions were associated with IR located downstream of MUT, AACS, SLC6A15 and PRKCA genes (P between 9.3 and 3.7 x 10 −5 ). Inferred haplotypes up to 13 SNPs length were associated with IR (e.g. MUT gene with P < 4.9 x 10 −5 ; Bonferroni 1.3 x 10 −3 ) and synergistic to HOMA IR . SNPs in the same regions were also associated with one order of magnitude lower P values (e.g. rs20167284 in the MUT gene with P < 1.27 x 10 −4 ) and replicated in Mediterranean samples (n = 832). In French, influential haplotypes (OR > 2.0) were correlated with in vivo insulin sensitivity (1/S I ) except for SLC6A15 gene. Association of these genes with BCAA levels was variable, but influential haplotypes confirmed implication of MUT from BCAA metabolism as well as a role of regulatory genes (AACS and PRKCA) and suggested potential changes in transcriptional activity. These data drive attention towards new regulatory regions involved in IR in relation with BCAA and show the ability of haplotypes in phased DNA to detect signals complimentary to SNPs, which may be useful in designing genetic markers for clinical applications in ethnic populations.

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