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1.

001-es BibID:BIBFORM013472
Első szerző:Borbíró István (biokémikus, molekuláris biológus)
Cím:Activation of transient receptor potential vanilloid-3 inhibits human hair growth / István Borbíró, Erika Lisztes, Balázs I. Tóth, Gabriella Czifra, Attila Oláh, Attila G. Szöllősi, Norbert Szentandrássy, Péter P. Nánási, Ralf Paus, László Kovács, Tamás Bíró
Dátum:2011
ISSN:0022-202X
Megjegyzések:In the current study, we aimed at identifying the functional role of transient receptor potential vanilloid-3 (TRPV3) ion channel in the regulation of human hair growth. Using human organ-cultured hair follicles (HF) and cultures of human outer root sheath (ORS) keratinocytes, we provide the first evidence that activation of TRPV3 inhibits human hair growth. TRPV3 immunoreactivity was confined to epithelial compartments of the human HF, mainly to the ORS. In organ culture, TRPV3 activation by plant-derived (e.g. eugenol, 10-1000 ?M) or synthetic (e.g. 2-aminoethoxydiphenyl borate, 1-300 ?M) agonists resulted in a dose-dependent inhibition of hair shaft elongation, suppression of proliferation, and induction of apoptosis and premature HF regression (catagen). Human ORS keratinocytes also expressed functional TRPV3, whose stimulation induced membrane currents, elevated intracellular calcium concentration, inhibited proliferation, and induced apoptosis. Of great importance, these effects on ORS keratinocytes were all mediated by TRPV3 since siRNA-mediated silencing of TRPV3 effectively abrogated the cellular actions of the above agonists. These findings collectively support the concept that TRPV3 signaling is a significant novel player in human hair growth control. Therefore, TRPV3 and the related intracellular signaling mechanism might function as a promising, novel target for pharmacological manipulations of clinically relevant hair growth disorders.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
human organ-cultured scalp hair follicle
hair growth
Molekuláris Medicina
proliferation
apoptosis
catagen
Megjelenés:Journal of Investigative Dermatology. - 131 : 8 (2011), p. 1605-1614. -
További szerzők:Lisztes Erika (1986-) (élettanász) Tóth István Balázs (1978-) (élettanász) Czifra Gabriella (1975-) (élettanász) Oláh Attila (1984-) (élettanász) Szöllősi Attila Gábor (1982-) (élettanász) Szentandrássy Norbert (1976-) (élettanász) Nánási Péter Pál (1956-) (élettanász) Paus, Ralf Kovács László (1939-) (élettanász) Bíró Tamás (1968-) (élettanász)
Pályázati támogatás:NK 78398
OTKA
NNF 78456
OTKA
TÁMOP-4.2.2-08/1/2008-0019
TÁMOP
MTA Bolyai János Ösztöndíj
EGYÉB
TÁMOP-4.2.1/B-09/1/KONV-2010-0007
TÁMOP
Sejt- és molekuláris élettan
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
DOI
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2.

001-es BibID:BIBFORM071074
Első szerző:Mihály Johanna (biológus, vegyész)
Cím:Transient receptor potential vanilloid-3 regulates inflammatory actions of human epidermal keratinocytes / Mihaly J., Vasas N., Angyal A., Payer E., Kistamas K., Nanasi P., Szollosi A., Biro T.
Dátum:2015
ISSN:0022-202X
Megjegyzések:Several members of the vanilloid subfamily of transient receptor potential (TRPV) channels are expressed in the skin and play important roles in regulating cutaneous homeostasis. Our aim was to study the expression of TRPV3 ion channel and to investigate its role in normal human epidermal keratinocytes (NHEK).Carvacrol (CRV), a naturally occurring monoterpenoid TRPV3 agonist was administered on NHEKs. Cell viability and proliferation were determined by MTT- and CyQuant-assays, respectively. Gene expression and protein release were assessed by RT-qPCR, Western blot, indirect immuno labeling and ELISA, whereas functional activity of TRPV3 was investigated by whole-cell patch-clamp technique and Fluo-4 AM-based Ca2+-measurement. Selective gene silencing of TRPV3 was performed by RNAi.First, we confirmed that TRPV3 is indeed functionally active on NHEKs. Moreover, its activation by CRV decreased viability and proliferation of keratinocytes in a dose-dependent manner. Importantly, we could also show that expression of certain pro-inflammatory cytokines (interleukin [IL]-1?, IL-6, IL-8 and tumor necrosis factor-?) were upregulated upon CRV treatment in a TRPV3-dependent manner. Furthermore, we also found that silencing of TRPV3 expression was able to efficiently abrogate the aforementioned pro-inflammatory response as well as CRV-induced release of IL-6 and IL-8.Our results strongly argue for that TRPV3 plays a pivotal role in regulating inflammatory actions of epidermal keratinocytes. Antagonizing its activity could therefore be a promising novel therapeutic tool in the management of certain cutaneous inflammatory diseases e.g. in atopic dermatitis.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idézhető absztrakt
TRPV3
pro-inflammatory model systems
Megjelenés:Journal of Investigative Dermatology 135 : Suppl. 2 (2015), p. S44. -
További szerzők:Molnárné Vasas Nikolett (1987-) (élettanász) Angyal Adrienn Páyer Edit (1982-) Kistamás Kornél (1986-) (biológus) Nánási Péter Pál (1956-) (élettanász) Szöllősi Attila Gábor (1982-) (élettanász) Bíró Tamás (1968-) (élettanász) (absztraktok)
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Intézményi repozitóriumban (DEA) tárolt változat
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3.

001-es BibID:BIBFORM071068
035-os BibID:(WOS)000423029700020 (Scopus)85041655428
Első szerző:Szöllősi Attila Gábor (élettanász)
Cím:Activation of Transient Receptor Potential Vanilloid 3 Regulates Inflammatory Actions of Human Epidermal Keratinocytes / Szöllősi A. G., Vasas N., Angyal Á., Kistamás K., Nánási P. P., Mihály J., Béke G., Herczeg-Lisztes E., Szegedi A., Kawada N., Yanagida T., Mori T., Kemény L., Bíró T.
Dátum:2018
Megjegyzések:Transient receptor potential (TRP) ion channels were first characterized on neurons, where they are classically implicated in sensory functions; however, research in recent decades has shown that many of these channels are also expressed on non-neuronal cell types. Emerging findings have highlighted the role of TRP channels in the skin, where they have been shown to be important in numerous cutaneous functions. Of particular interest is TRPV3, which was first described on keratinocytes. Its functional importance was supported when its gain-of-function mutation was linked to Olmsted syndrome, which is characterized by palmoplantar keratoderma, periorifacial hyperkeratosis, diffuse hypotrichosis and alopecia, as well as itch. In spite of these exciting results, we have no information about the role and functionality of TRPV3 on keratinocytes at the cellular level. In our current study, we have identified TRPV3 expression both on human skin and cultured epidermal keratinocytes. TRPV3 stimulation was found to function as a Ca2+-permeable ion channel which suppresses proliferation of epidermal keratinocytes and induces cell death. Stimulation of the channel also triggers a strong proinflammatory response via the NF-?B pathway. Collectively our data shows that TRPV3 is functionally expressed on human epidermal keratinocytes and that it plays a role in cutaneous inflammatory processes.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
inflammation
keratinocyte
nuclear factor kappa-light-chain-enhancer of activated B cells
transient receptor potential vanilloid
Megjelenés:Journal of Investigative Dermatology. - 138 : 2 (2018), p. 365-374. -
További szerzők:Molnárné Vasas Nikolett (1987-) (élettanász) Angyal Ágnes (1987-) (molekuláris biológus) Kistamás Kornél (1986-) (biológus) Nánási Péter Pál (1956-) (élettanász) Mihály Johanna (1982-) (biológus, vegyész) Béke Gabriella (1987-) (molekuláris biológus) Lisztes Erika (1986-) (élettanász) Szegedi Andrea (1964-) (bőrgyógyász) Kawada, Naoki Yanagida, Takashi Mori, Tomohiro Kemény Lajos Bíró Tamás (1968-) (élettanász)
Pályázati támogatás:OTKA 105369
OTKA
NKFIH K120552
Egyéb
NKFIH K120187
Egyéb
GINOP-2.3.2-15-2016-00015
GINOP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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