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001-es BibID:	BIBFORM031278
Első szerző:	Gouranton, E.
Cím:	Apo-10'-lycopenoic acid impacts adipose tissue biology via the retinoic acid receptors / E. Gouranton, G. Aydemir, E. Reynaud, J. Marcotorchino, C. Malezet, C. Caris-Veyrat, R. Blomhoff, J.F. Landrier, R. Rühl
Dátum:	2011
ISSN:	1388-1981
Megjegyzések:	Apo-10'-lycopenoic acid (apo-10-lycac), a metabolite of lycopene, has been shown to possess potent biological activities, notably via the retinoic acid receptors (RAR). In the current study, its impact on adipose tissue and adipocytes was studied. In microarray experiments, the set of genes regulated by apo-10-lycac treatments was compared to the set of genes regulated by all-trans retinoic acid (ATRA), the natural ligand of RAR, in adipocytes. Approximately 27.5% of the genes regulated by apo-10-lycac treatments were also regulated by ATRA, suggesting a common ability in terms of gene expression modulation, possibly via RAR transactivation. The physiological impact of apo-10-lycac on adipose tissue biology was evaluated. If it had no effect on adipogenesis in the 3T3-L1 cell model, this metabolite may have a preventative effect against inflammation, by preventing the increase in the inflammatory markers, interleukin 6 and interleukin 1β in various dedicated models. The ability of apo-10-lycac to transactivate the RAR and to modulate the transcription of RAR target gene was brought in vivo in adipose tissue. While apo-10-lycac was not detected in adipose tissue, a metabolite with a molecular weight with 2Da larger mass was detected, suggesting that a dihydro-apo-10'-lycopenoic acid, may be present in adipose tissue and that this compound could active or may lead to further active RAR-activating apo-10-lycac metabolites. Since apo-10-lycac treatments induce anti-inflammatory effects in adipose tissue but do not inhibit adipogenesis, we propose that apo-10-lycac treatments and its potential active metabolites in WAT may be considered for prevention strategies relevant for obesity-associated pathologies.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban Apo-10'-lycopenoic acid Molekuláris Medicina egyetemen (Magyarországon) készült közlemény
Megjelenés:	Biochimica et Biophysica Acta (BBA). Molecular and Cell Biology of Lipids. - 1811 : 12 (2011), p. 1105-1114. -
További szerzők:	Aydemir, Gamze (1977-) (biotechnológus) Reynaud, Eric Marcotorchino, J. Malezet, C. Caris-Veyrat, Catherine Blomhoff, Rune Landrier, J. F. Rühl, Ralph (1969-) (vegyész)
Pályázati támogatás:	TAMOP 4.2.1./B-09/1/KONV-2010-007 TAMOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM065885
035-os BibID:	(WoS)000392177600021 (Scopus)85009754053
Első szerző:	Landrier, J. F.
Cím:	Reduced adiponectin expression after high-fat diet is associated with selective up-regulation of ALDH1A1 and further retinoic acid receptor signaling in adipose tissue / Jean-Francois Landrier, Elnaz Kasiri, Esma Karkeni, Johanna Mihály, Gabriella Béke, Kathrin Weiss, Renata Lucas, Gamze Aydemir, Jérome Salles, Stéphane Walrand, Ángel R. de Lera, Ralph Rühl
Dátum:	2017
ISSN:	0892-6638
Megjegyzések:	Adiponectin is an adipocyte-derived adipokine with potent antidiabetic, anti-inflammatory, and antiatherogenic activity. Long-term, high-fat diet results in gain of body weight, adiposity, further inflammatory-based cardiovascular diseases, and reduced adiponectin secretion. Vitamin A derivatives/retinoids are involved in several of these processes, which mainly take place in white adipose tissue (WAT). In this study, we examined adiponectin expression as a function of high dietary fat and high vitamin A conditions in mice. A decrease of adiponectin expression in addition to an up-regulation of aldehyde dehydrogenase A1 (ALDH1A1), retinoid signaling, and retinoic acid response element signaling was selectively observed in WAT of normal vitamin A- and high-fat diet-fed mice. Reduced adiponectin expression in WAT was also observed in high vitamin A diet-fed mice. Adipocyte cell culture revealed that endogenous and synthetic retinoic acid receptor (RAR)?- and RAR?-selective agonists, as well as a synthetic retinoid X receptor agonist, efficiently reduced adiponectin expression, whereas ALDH1A1 expression only increased with RAR agonists. We conclude that reduced adiponectin expression under high-fat dietary conditions is dependent on i) increased ALDH1A1 expression in adipocytes, which does not increase all-trans-retinoic acid levels; ii) further RAR ligand-induced, WAT-selective, increased retinoic acid response element-mediated signaling; and iii) RAR ligand-dependent reduction of adiponectin expression
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk vitamin A nuclear hormone receptor obesity diabetes retinaldehyde dehydrogenase
Megjelenés:	Faseb Journal. - 31 : 1 (2017), p. 203-211. -
További szerzők:	Kasiri, Elnaz Karkeni, Esma Mihály Johanna (1982-) (biológus, vegyész) Béke Gabriella (1987-) (molekuláris biológus) Weiss, Kathrin (1978-) Lucas, Renata Aydemir, Gamze (1977-) (biotechnológus) Salles, Jérome Walrand, Stéphane de Lera, Ángel R. Rühl, Ralph (1969-) (vegyész)
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