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001-es BibID:	BIBFORM077512
Első szerző:	Kristóf Endre (általános orvos)
Cím:	Interleukin-6 released from differentiating human beige adipocytes improves browning / Endre Kristóf, Ágnes Klusóczki, Roland Veress, Abhirup Shaw, Zsolt Sándor Combi, Klára Varga, Ferenc Győry, Zoltán Balajthy, Péter Bai, Zsolt Bacso, László Fésüs
Dátum:	2019
ISSN:	0014-4827
Megjegyzések:	Brown and beige adipocytes contribute significantly to the regulation of whole body energy expenditure and systemic metabolic homeostasis not exclusively by thermogenesis through mitochondrial uncoupling. Several studies have provided evidence in rodents that brown and beige adipocytes produce a set of adipokines ("batokines") which regulate local tissue homeostasis and have beneficial effects on physiological functions of the entire body. We observed elevated secretion of Interleukin (IL)-6, IL-8 and monocyte chemoattractant protein (MCP)-1, but not tumor necrosis factor alpha (TNFα) or IL-1β pro-inflammatory cytokines, by ex vivo differentiating human beige adipocytes (induced by either PPARγ agonist or irisin) compared to white. Higher levels of IL-6, IL-8 and MCP-1 were released from human deep neck adipose tissue biopsies (enriched in browning cells) than from subcutaneous ones. IL-6 was produced in a sustained manner and mostly by the adipocytes and not by the undifferentiated progenitors. Continuous blocking of IL-6 receptor by specific antibody during beige differentiation resulted in downregulation of brown marker genes and increased morphological changes that are characteristic of white adipocytes. The data suggest that beige adipocytes adjust their production of IL-6 to reach an optimal level for differentiation in the medium enhancing browning in an autocrine manner.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Experimental Cell Research. - 377 : 1-2 (2019), p. 47-55. -
További szerzők:	Klusóczki Ágnes (1991-) (biotechnológus) Veress Roland (1992-) (molekuláris biológus) Shaw, Abhirup (1992-) Combi Zsolt Varga Klára Győry Ferenc (1969-) (kardiológus) Balajthy Zoltán (1957-) (biokémikus, sejtbiológus) Bai Péter (1976-) (biokémikus) Bacsó Zsolt (1963-) (biofizikus) Fésüs László (1947-) (orvos biokémikus)
Pályázati támogatás:	GINOP-2.3.2-15-2016-00006 GINOP OTKA-NK105046 OTKA OTKA-K123975 OTKA ÚNKP-18-4 ÚNKP
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001-es BibID:	BIBFORM101024
035-os BibID:	(cikkazonosító)363 (WoS)000774617800001 (Scopus)85127543748
Első szerző:	Vámos Attila (gyógyszer-biotechnológus)
Cím:	Mitophagy Mediates the Beige to White Transition of Human Primary Subcutaneous Adipocytes Ex Vivo / Vámos Attila, Shaw Abhirup, Varga Klára, Csomós István, Mocsár Gábor, Balajthy Zoltán, Lányi Cecília, Bacso Zsolt, Szatmári-Tóth Mária, Kristóf Endre
Dátum:	2022
ISSN:	1424-8247
Megjegyzések:	Brown and beige adipocytes have multilocular lipid droplets, express uncoupling protein (UCP) 1, and promote energy expenditure. In rodents, when the stimulus of browning subsides, parkin-dependent mitophagy is activated and dormant beige adipocytes persist. In humans, however, the molecular events during the beige to white transition have not been studied in detail. In this study, human primary subcutaneous abdominal preadipocytes were differentiated to beige for 14 days, then either the beige culture conditions were applied for an additional 14 days or it was replaced by a white medium. Control white adipocytes were differentiated by their specific cocktail for 28 days. Peroxisome proliferator-activated receptor ?-driven beige differentiation resulted in increased mitochondrial biogenesis, UCP1 expression, fragmentation, and respiration as compared to white. Morphology, UCP1 content, mitochondrial fragmentation, and basal respiration of the adipocytes that underwent transition, along with the induction of mitophagy, were similar to control white adipocytes. However, white converted beige adipocytes had a stronger responsiveness to dibutyril-cAMP, which mimics adrenergic stimulus, than the control white ones. Gene expression patterns showed that the removal of mitochondria in transitioning adipocytes may involve both parkin-dependent and -independent pathways. Preventing the entry of beige adipocytes into white transition can be a feasible way to maintain elevated thermogenesis and energy expenditure.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk obesity beige adipocytes mitophagy thermogenesis uncoupling protein 1 parkin
Megjelenés:	Pharmaceuticals. - 15 : 3 (2022), p. 1-21. -
További szerzők:	Shaw, Abhirup (1992-) Varga Klára Csomós István (1983-) (molekuláris biológus) Mocsár Gábor (1981-) (biofizikus) Balajthy Zoltán (1957-) (biokémikus, sejtbiológus) Lányi Cecília Bacsó Zsolt (1963-) (biofizikus) Szatmári-Tóth Mária (1987-) (molekuláris biológus) Kristóf Endre (1987-) (általános orvos)
Pályázati támogatás:	FK131424 OTKA EFOP-3.6.3-VEKOP-16-2017-00009 EFOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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