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001-es BibID:	BIBFORM122715
035-os BibID:	(Scopus)85193054873 (WOS)001222011000001
Első szerző:	Kunka Árpád (arc-, állcsont- és szájsebész)
Cím:	TRPA1 up-regulation mediates oxidative stress in a pulpitis model in vitro / Árpád Kunka, Erika Lisztes, Judit Bohács, Márk Racskó, Balázs Kelemen, Gabriella Kovalecz, Etelka D. Tóth, Csaba Hegedűs, Kinga Bágyi, Rita Marincsák, Balázs István Tóth
Dátum:	2024
ISSN:	0007-1188
Megjegyzések:	Background and Purpose: Pulpitis is associated with tooth hypersensitivity and results in pulpal damage. Thermosensitive transient receptor potential (TRP) ion channels expressed in the dental pulp may be key transducers of inflammation and nociception. We aimed at investigating the expression and role of thermo-TRPs in primary human dental pulp cells (hDPCs) in normal and inflammatory conditions. Experimental Approach: Inflammatory conditions were induced in hDPC cultures by applying polyinosinic:polycytidylic acid (poly(I:C)). Gene expression and pro-inflammatory cytokine release were measured by RT-qPCR and ELISA. Functions of TRPA1 channels were investigated by monitoring changes in intracellular Ca2+ concentration. Mitochondrial superoxide production was measured using a fluorescent substrate. Cellular viability was assessed by measuring the activity of mitochondrial dehydrogenases and cytoplasmic esterases. TRPA1 activity was modified by agonists, antagonists, and gene silencing. Key Results: Transcripts of TRPV1, TRPV2, TRPV4, TRPC5, and TRPA1 were highly expressed in control hDPCs, whereas TRPV3, TRPM2, and TRPM3 expressions were much lower, and TRPM8 was not detected. Poly(I:C) markedly up-regulated TRPA1 but not other thermo-TRPs. TRPA1 agonist-induced Ca2+ signals were highly potentiated in inflammatory conditions. Poly(I:C)-treated cells displayed increased Ca2+ responses to H2O2, which was abolished by TRPA1 antagonists. Inflammatory conditions induced oxidative stress, stimulated mitochondrial superoxide production, resulted in mitochondrial damage, and decreased cellular viability of hDPCs. This inflammatory cellular damage was partly prevented by the co-application of TRPA1 antagonist or TRPA1 silencing. Conclusion and Implications: Pharmacological blockade of TRPA1 channels may be a promising therapeutic approach to alleviate pulpitis and inflammation-associated pulpal damage. ? 2024 The Authors. British Journal of Pharmacology published by John Wiley & Sons Ltd on behalf of British Pharmacological Society.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk dental pulp endodontics immunopharmacology inflammation reactive oxygen species transient receptor potential channels TRPA1
Megjelenés:	British Journal Of Pharmacology. - 181 : 17 (2024), p. 3246-3262. -
További szerzők:	Lisztes Erika (1986-) (élettanász) Bohács Judit (1993-) (fogorvos) Racskó Márk (1991-) (molekuláris biológus) Kelemen Balázs (1992-) (biológus) Kovalecz Gabriella (1973-) (fogszakorvos) D. Tóth Etelka (1975-) (fogszakorvos) Hegedűs Csaba (1953-) (fogszakorvos) Bágyi Kinga (1971-) (fogszakorvos) Marincsák Rita (1979-) (fogszakorvos) Tóth István Balázs (1978-) (élettanász)
Pályázati támogatás:	EFOP-3.6.1-16-2016-00022 EFOP GINOP2.3.2-15-2016-00050 GINOP ÚNKP-21-5-DE-491 ÚNKP ÚNKP-22-3-IDE-324 ÚNKP ÚNKP-23-3-II-DE-430 ÚNKP
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