CCL

Összesen 7 találat.
#/oldal:
Részletezés:
Rendezés:

1.

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
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

2.

001-es BibID:BIBFORM067761
Első szerző:Kristóf Endre (általános orvos)
Cím:Browning-inducers modify the differentiation of human adipocytes from different anatomical sites and enhance their mitochondrial respiration / Kristóf Endre, Quang-Minh Doan-Xuan, Klusóczki Ágnes, Győry Ferenc, Póliska Szilárd, Bacsó Zsolt, Bai Péter, Fésüs László
Dátum:2016
Megjegyzések:Several studies highlighted the strong negative correlation between obesity and active brown adipose tissue amount in adult humans. There are at least two types of thermogenic fat depots, classical brown and beige, which have different origins and tissue distribution. We intended to clarify whether preadipocytes from different anatomical sites are capable of initiating a browning program in parallel with the enhancement of mitochondrial respiration in response to browning-inducers. Preadipocytes obtained from herniotomy (abdominal subcutaneous) or thyroid surgery ("deep neck" and cervical subcutaneous) and a human preadipocyte cell line (SGBS) were differentiated into white, brown (by BMP7 treatment) or beige (by irisin and clozapine administration or by a previously described cocktail) adipocytes. To assess browning, gene expression measurements and laser-scanning cytometry based morphology analysis were performed. Oxygen consumption was measured using an XF96 oxymeter. Differentiating adipocytes treated with browning-inducers had smaller lipid droplets, more mitochondrial DNA, higher mitochondrial respiration and contained more Ucp1 protein than white adipocytes. Browning adipocytes utilize more fatty acids by beta-oxidation and increase their respiration by activating a futile cycle of creatine metabolism. Next, we intend to identify molecular markers to characterize those preadipocytes that are capable to implement an effective browning program.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idézhető absztrakt
Megjelenés:Journal of World Mitochondria Society. - 2 : 2 (2016), p. 23. -
További szerzők:Doan-Xuan, Quang-Minh (1986-) (biofizikus) Klusóczki Ágnes (1991-) (biotechnológus) Győry Ferenc (1969-) (kardiológus) Póliska Szilárd (1978-) (biológus) Bacsó Zsolt (1963-) (biofizikus) Bai Péter (1976-) (biokémikus) Fésüs László (1947-) (orvos biokémikus)
Pályázati támogatás:NK 105046
OTKA
GINOP-2.3.2-15-2016-00006
GINOP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

3.

001-es BibID:BIBFORM066382
Első szerző:Kristóf Endre (általános orvos)
Cím:Irisin modifies the differentiation program of subcutaneous human adipocytes and induces "browning" / E. K. Kristof, Q. M. Doan-Xuan, P. Bai, Z. Bacsó, L. Fésüs
Dátum:2014
ISSN:1742-464X
Megjegyzések:Although brown adipose tissue (BAT) can be found only in small amounts in the human body after infancy, recent studies revealed that it has a major importance in regulating the energy balance of the entire body. Its oxidative metabolism contributes to energy expenditure during cold exposure and diet or physical exercise induced thermogenesis by triggering the differentiation of"brown adipocyte-like" or "beige" cells interspersed in subcutaneous white adipose tissue depots in a process called "browning". A very strong negative correlation has been found between obesity and BAT amount in humans. Targeting the currently known and unknown regulatory systems of "browning" might open up better strategies to specifically stimulate BAT in obese individuals to aidweight reduction.Irisin is a recently identified peptide hormone which is cleaved from the Fndc5 transmembrane protein and induces a "browning" program in subcutaneous white adipose tissue in mouse models. In humans, however, an escalating debate revolves around the secretion and metabolic effects of irisin. Our aim was to clarify whether human recombinant irsin was able to induce a browning program on differentiating human adipocytes.Human primary preadipocytes obtained from herniotomy were differentiated into white or brown adipocytes with or without long or short-term irisin treatment. Expression of white, brown and general adipocyte markers were determined by RT Q-PCR,immunoblotting or immunocytochemistry and changes in morphology (size and number of lipid droplets, expression of Ucp1 and Cidea in situ) were visualized and quantified by Laser Scanning Cytometry. Functional analysis was carried out using a Seahorse Bioscience XF-96 Analyzer.Irisin administration during white adipogenic differentiation resulted in a significant overexpression of several brown adipocyte marker genes (UCP1, ELOVL3, CIDEA, CYC1, PGC1A). Irisin treated cells had more and smaller lipid droplets, more mitochondrial DNA, higher functional mitochondrial respiration and expressed more Ucp1 and Cidea in situ than the in vitro differentiated white adipocytes. We conclude that irisin treatment is able to induce a browning program in differentiating human subcutaneous white adipocytes in culture conditions.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idézhető absztrakt
Browning
Irisin
Laser Scanning Cytometry
Megjelenés:Febs Journal 281 : Suppl. 1 (2014), p. 230. -
További szerzők:Doan-Xuan, Quang-Minh (1986-) (biofizikus) Bai Péter (1976-) (biokémikus) Bacsó Zsolt (1963-) (biofizikus) Fésüs László (1947-) (orvos biokémikus)
Pályázati támogatás:TÁMOP-4.2.2.A-11/1/KONV-2012-0023
TÁMOP
TÁMOP-4.2.4.A/2-11/1-2012-0001
TÁMOP
MTA-DE
MTA
Apoptózis és Genomika Kutatócsoport
Internet cím:Szerző által megadott URL
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

4.

001-es BibID:BIBFORM065903
035-os BibID:(Scopus)85030708620 (WOS)000392133700005
Első szerző:Kristóf Endre (általános orvos)
Cím:Clozapine modifies the differentiation program of human adipocytes inducing browning / Endre Kristóf, Quang-Minh Doan-Xuan, Anitta Kinga Sárvári, Ágnes Klusóczki, Pamela Fischer-Posovszky, Martin Wabitsch, Zsolt Bacso, Péter Bai, Zoltán Balajthy, László Fésüs
Dátum:2016
Megjegyzések:Administration of second-generation antipsychotic drugs (SGAs) often leads to weight gain and consequent cardio-metabolic side effects. We observed that clozapine but not 6 other antipsychotic drugs reprogrammed the gene expression pattern of differentiating human adipocytes ex vivo, leading to an elevated expression of the browning marker gene UCP1, more and smaller lipid droplets and more mitochondrial DNA than in the untreated white adipocytes. Laser-scanning cytometry showed that up to 40% of the differentiating single primary and SGBS adipocytes had the characteristic morphological features of browning cells. Furthermore, clozapine significantly up-regulated ELOVL3, CIDEA, CYC1, PGC1A and TBX1 genes but not ZIC1 suggesting induction of the beige-like and not the classical brown phenotype. When we tested if browning induced by clozapine can be explained by its known pharmacological effect of antagonizing serotonin (5HT) receptors it was found that browning cells expressed 5HT receptors 2A, 1D, 7 and the up-regulation of browning markers was diminished in the presence of exogenous 5HT. Undifferentiated progenitors or completely differentiated beige or white adipocytes did not respond to clozapine administration. The clozapine induced beige cells displayed increased basal and oligomycin inhibited (proton leak) oxygen consumption but these cells showed a lower response to cAMP stimulus as compared to control beige adipocytes indicating that they are less capable to respond to natural thermogenic anti-obesity cues. Our data altogether suggest that novel pharmacological stimulation of these masked beige adipocytes can be a future therapeutic target for treatment of SGA-induced weight gain.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
adipocita
beige
clozapine
lézer-pásztázó citometria
elhízás
szerotonin
termogenezis
Megjelenés:Translational Psychiatry. - 6 : 11 (2016), p. 1-12. -
További szerzők:Doan-Xuan, Quang-Minh (1986-) (biofizikus) Sárvári Anitta Kinga (1984-) (biológus) Klusóczki Ágnes (1991-) (biotechnológus) Fischer-Posovszky Pamela Wabitsch, Martin Bacsó Zsolt (1963-) (biofizikus) Bai Péter (1976-) (biokémikus) Balajthy Zoltán (1957-) (biokémikus, sejtbiológus) Fésüs László (1947-) (orvos biokémikus)
Pályázati támogatás:TÁMOP-4.2.4.A/2-11/1-2012-0001
TÁMOP
TÁMOP-4.2.2.A-11/1/KONV-2012-0023
TÁMOP
TÁMOP-4.2.2.A-11/1/KONV-2012-0025
TÁMOP
TRANSCOM IAPP 251506
FP7
MTA-DE
MTA
Apoptózis és Genomika Kutatócsoport
K108308
OTKA
NK105046
OTKA
GINOP-2.3.2-15-2016-00006
GINOP
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
DOI
Borító:

5.

001-es BibID:BIBFORM061340
035-os BibID:(Cikkazonosító)12540 (WOS)000358542000001 (Scopus)84938152220
Első szerző:Kristóf Endre (általános orvos)
Cím:Laser-scanning cytometry can quantify human adipocyte browning and proves effectiveness of irisin / Endre Kristóf, Quang-Minh Doan-Xuan, Péter Bai, Zsolt Bacso, László Fésüs
Dátum:2015
ISSN:2045-2322
Megjegyzések:Laser-scanning cytometry is presented as a tool allowing population scale analysis of ex vivo human brown adipogenic differentiation. It combines texture analysis and detection of Ucp1 protein content in single brown adipocytes of mixed cell populations with gene expression pattern and functional characteristics of browning. Using this method we could validate mouse data in human samples demonstrating the effectiveness of irisin to induce "beige" differentiation of subcutaneous white adipocytes.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 5 (2015), p. 1-9. -
További szerzők:Doan-Xuan, Quang-Minh (1986-) (biofizikus) Bai Péter (1976-) (biokémikus) Bacsó Zsolt (1963-) (biofizikus) Fésüs László (1947-) (orvos biokémikus)
Pályázati támogatás:TÁMOP-4.2.2.A-11/1/KONV-2012-0025
TÁMOP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

6.

001-es BibID:BIBFORM101761
035-os BibID:(cikkazonosító)5175 (scopus)85129602867 (wos)000795260800001
Első szerző:Lénárt Kinga (biológus)
Cím:Tissue Transglutaminase Knock-Out Preadipocytes and Beige Cells of Epididymal Fat Origin Possess Decreased Mitochondrial Functions Required for Thermogenesis / Lénárt Kinga, Bankó Csaba, Ujlaki Gyula, Póliska Szilárd, Kis Gréta, Csősz Éva, Miklós Antal, Bacso Zsolt, Bai Péter, Fésüs László, Mádi András
Dátum:2022
ISSN:1661-6596 1422-0067
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:International Journal Of Molecular Sciences. - 23 : 9 (2022), p. 5175. -
További szerzők:Bankó Csaba (1989-) (molekuláris biológus) Ujlaki Gyula (1991-) (molekuláris biológus) Póliska Szilárd (1978-) (biológus) Kis Gréta (1979-) (molekuláris biológus) Csősz Éva (1977-) (biokémikus, molekuláris biológus) Antal Miklós (1951-) (orvos, anatómus) Bacsó Zsolt (1963-) (biofizikus) Bai Péter (1976-) (biokémikus) Fésüs László (1947-) (orvos biokémikus) Mádi András (1967-) (biológus)
Pályázati támogatás:GINOP-2.3.2-15-2016-00006
GINOP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

7.

001-es BibID:BIBFORM071279
Első szerző:Mádi András (biológus)
Cím:Browning deficiency and low mobilization of fatty acids in gonadal white adipose tissue leads to decreased cold-tolerance of transglutaminase 2 knock-out mice / András Mádi, Ixchelt Cuaranta-Monroy, Kinga Lénárt, Attila Pap, Zoltán András Mezei, Endre Kristóf, Anna Oláh, György Vámosi, Zsolt Bacsó, Péter Bai, László Fésüs
Dátum:2017
ISSN:1388-1981
Megjegyzések:During cold-exposure ♭beige' adipocytes with increased mitochondrial content are activated in white adipose tissue (WAT). These cells, similarly to brown adipose tissue (BAT), dissipate stored chemical energy in the form of heat with the help of uncoupling protein 1 (UCP1). We investigated the effect of tissue transglutaminase (TG2)ablation on the function of ATs in mice. Although TG2+/+ and TG2?/? mice had the same amount of WAT and BAT, we found that TG2+/+ animals could tolerate acute cold exposure for 4 h, whereas TG2?/? mice only for 3 h. Both TG2?/? and TG2+/+ animals used up half of the triacylglycerol content of subcutaneous WAT (SCAT)after 3 h treatment; however, TG2?/? mice still possessed markedly whiter and higher amount of gonadal WAT (GONAT) as reflected in the larger size of adipocytes and lower free fatty acid levels in serum. Furthermore, lower expression of ♭beige' marker genes such as UCP1, TBX1 and TNFRFS9 was observed after cold exposure inGONAT of TG2?/? mice, paralleled with a lower level of UCP1 protein and a decreased mitochondrial content.The detected changes in gene expression of Resistin and Adiponectin did not provoke glucose intolerance in the investigated TG2?/? mice, and TG2 deletion did not influence adrenaline, noradrenaline, glucagon and insulin production. Our data suggest that TG2 has a tissue-specific role in GONAT function and browning, which becomesapparent under acute cold exposure.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Browning
Uncoupling protein-1
Beige adipocytes
Differentiation
Cold exposure
TG2
Megjelenés:Biochimica et Biophysica Acta (BBA). Molecular and Cell Biology of Lipids. - 1862 : 12 (2017), p. 1575-1586. -
További szerzők:Cuaranta-Monroy, Ixchelt (1979-) (Ph.D. hallgató) Lénárt Kinga (1994-) (biológus) Pap Attila (1980-) (biológus) Mezei Zoltán András (1980-) (orvos) Kristóf Endre (1987-) (általános orvos) Oláh Anna (1956-) (klinikai biokémikus, vegyész) Vámosi György (1967-) (biofizikus) Bacsó Zsolt (1963-) (biofizikus) Bai Péter (1976-) (biokémikus) Fésüs László (1947-) (orvos biokémikus)
Pályázati támogatás:GINOP-2.3.2-15-2016-00006
GINOP
K105046
OTKA
K108308
OTKA
K103965
OTKA
Internet cím:DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Rekordok letöltése1