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001-es BibID:	BIBFORM048835
Első szerző:	Dózsa Anikó (Ph.D hallgató, orvos)
Cím:	PPARγ-Mediated and Arachidonic Acid-Dependent Signaling is Involved in Differentiation and Lipid Production of Human Sebocytes / Aniko Dozsa, Balazs Dezso, Balazs I. Toth, Attila Bacsi, Szilard Poliska, Emanuela Camera, Mauro Picardo, Christos C. Zouboulis, Tamás Bíró, Gerd Schmitz, Gerhard Liebisch, Ralph Rühl, Eva Remenyik, Laszlo Nagy
Dátum:	2014
ISSN:	0022-202X
Megjegyzések:	The transcriptional basis of sebocyte differentiation and lipid production is mostly unclear. Peroxisome proliferator-activated receptor gamma (PPAR?), a lipid activated transcription factor, has been implicated in differentiation and lipid metabolism of various cell types. Here, we show that PPAR? is differentially expressed in normal and pathological human sebocytes, and appears to have roles in their differentiation and lipid production. We used laser microdissected normal and pathologic human sebaceous glands (SG) and SZ95 cells (immortalized sebocyte cell line) analyzed by RT-qPCR and immunohistochemistry. Lipids were analyzed by quantitative fluorimetry and mass spectrometry based approaches. We have observed that PPAR? and its target genes, ADRP and PGAR, are expressed in sebocytes and show association with their level of differentiation. Also, PPAR? is present in normal and hyperplastic SG, whereas its expression levels are decreased in SG adenoma and SG carcinoma cells, reflecting a maturation-linked expression pattern. Furthermore, in SZ95 sebocytes, naturally occurring lipids including arachidonic acid and arachidonic acid keto-metabolites (eg 5-KETE, 12-KETE) appear to regulate PPAR? signaling pathways, which in turn modulate phospholipid biosynthesis and induce neutral lipid synthesis. Collectively, our findings highlight the importance of endogenous ligand-activated PPAR? signaling in human sebocyte biology and suggest that PPAR? might be a promising candidate for the clinical management of SG disorders.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban Calcium (Ca2+) signalling Ion channel Membrane transport Molecular mechanisms of disease Skin TRP channels
Megjelenés:	Journal of Investigative Dermatology. - 134 : 4 (2014), p. 910-920. -
További szerzők:	Dezső Balázs (1951-) (pathológus) Tóth István Balázs (1978-) (élettanász) Bácsi Attila (1967-) (immunológus) Póliska Szilárd (1978-) (biológus) Camera, Emanuela Picardo, Mauro Zouboulis, Christos C. (1960-) (bőrgyógyász) Bíró Tamás (1968-) (élettanász) Schmitz, Gerd Liebisch, Gerhard Rühl, Ralph (1969-) (vegyész) Remenyik Éva (1956-) (bőrgyógyász) Nagy László (1966-) (molekuláris sejtbiológus, biokémikus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM054574
035-os BibID:	PMID: 25061872
Első szerző:	Oláh Attila (élettanász)
Cím:	Cannabidiol exerts sebostatic and antiinflammatory effects on human sebocytes / Attila Oláh, Balázs I. Tóth, István Borbíró, Koji Sugawara, Attila G. Szöllősi, Gabriella Czifra, Balázs Pál, Lídia Ambrus, Jennifer Kloepper, Emanuela Camera, Matteo Ludovici, Mauro Picardo, Thomas Voets, Christos C. Zouboulis, Ralf Paus, Tamás Bíró
Dátum:	2014
ISSN:	0021-9738
Megjegyzések:	The endocannabinoid system (ECS) regulates multiple physiological processes, including cutaneous cell growth and differentiation. Here, we explored the effects of the major nonpsychotropic phytocannabinoid of Cannabis sativa, (-)-cannabidiol (CBD), on human sebaceous gland function and determined that CBD behaves as a highly effective sebostatic agent. Administration of CBD to cultured human sebocytes and human skin organ culture inhibited the lipogenic actions of various compounds, including arachidonic acid and a combination of linoleic acid and testosterone, and suppressed sebocyte proliferation via the activation of transient receptor potential vanilloid-4 (TRPV4) ion channels. Activation of TRPV4 interfered with the prolipogenic ERK1/2 MAPK pathway and resulted in the downregulation of nuclear receptor interacting protein-1 (NRIP1), which influences glucose and lipid metabolism, thereby inhibiting sebocyte lipogenesis. CBD also exerted complex antiinflammatory actions that were coupled to A2a adenosine receptor-dependent upregulation of tribbles homolog 3 (TRIB3) and inhibition of the NF-KB signaling. Collectively, our findings suggest that, due to the combined lipostatic, antiproliferative, and antiinflammatory effects, CBD has potential as a promising therapeutic agent for the treatment of acne vulgaris.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	The Journal of Clinical Investigation. - 124 : 9 (2014), p. 3713-3724. -
További szerzők:	Tóth István Balázs (1978-) (élettanász) Borbíró István (1982-) (biokémikus, molekuláris biológus) Sugawara, Koji Szöllősi Attila Gábor (1982-) (élettanász) Czifra Gabriella (1975-) (élettanász) Pál Balázs (1975-) (élettanász) Ambrus Lídia (1986-) (élettanász) Kloepper, Jennifer E. Camera, Emanuela Ludovici, Matteo Picardo, Mauro Voets, Thomas Zouboulis, Christos C. (1960-) (bőrgyógyász) Paus, Ralf Bíró Tamás (1968-) (élettanász)
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