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001-es BibID:BIBFORM109585
035-os BibID:(cikkazonosító)1115685 (Scopus)85150718609 (WoS)000951373400001
Első szerző:Ducza László (molekuláris biológus)
Cím:Neuronal P2X4 receptor may contribute to peripheral inflammatory pain in rat spinal dorsal horn / Ducza László, Gajtkó Andrea, Hegedűs Krisztina, Bakk Erzsébet, Kis Gréta, Gaál Botond, Takács Roland, Szücs Péter, Matesz Klára, Holló Krisztina
Dátum:2023
ISSN:1662-5099
Megjegyzések:Objective: Intense inflammation may result in pain, which manifests as spinal central sensitization. There is growing evidence that purinergic signaling plays a pivotal role in the orchestration of pain processing. Over the last decade the ionotropic P2X purino receptor 4 (P2X4) got into spotlight in neuropathic disorders, however its precise spinal expression was scantily characterized during inflammatory pain. Thus, we intended to analyze the receptor distribution within spinal dorsal horn and lumbar dorsal root ganglia (DRG) of rats suffering in inflammatory pain induced by complete Freund adjuvant (CFA). Methods: CFA-induced peripheral inflammation was validated by mechanical and thermal behavioral tests. In order to ensure about the putative alteration of spinal P2X4 receptor gene expression qPCR reactions were designed, followed by immunoperoxidase and Western blot experiments to assess changes at a protein level. Colocalization of P2X4 with neuronal and glial markers was investigated by double immunofluorescent labelings, which were subsequently analyzed with IMARIS software. Transmission electronmicroscopy was applied to study the ultrastructural localization of the receptor. Concurrently, in lumbar DRG cells similar methodology has been carried out to complete our observations. Results: The figures of mechanical and thermal behavioral tests proved the establishment of CFA-induced inflammatory pain. We observed significant enhancement of P2X4 transcript level within the spinal dorsal horn 3?days upon CFA administration. Elevation of P2X4 immunoreactivity within Rexed lamina I-II of the spinal gray matter was synchronous with mRNA expression, and confirmed by protein blotting. According to IMARIS analysis the robust protein increase was mainly detected on primary afferent axonterminals and GFAP-labelled astrocyte membrane compartments, but not on postsynaptic dendrites was also validated ultrastructurally within the spinal dorsal horn. Furthermore, lumbar DRG analysis demonstrated that peptidergic and non-peptidergic nociceptive subsets of ganglia cells were also abundantly positive for P2X4 receptor in CFA model. Conclusion: Here we provide novel evidence about involvement of neuronal and glial P2X4 receptor in the establishment of inflammatory pain.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
inflammatory pain
spinal dorsal horn
P2X4 receptor
central sensitization
primary afferents
glial cells
dorsal root ganglia
Megjelenés:Frontiers in Molecular Neuroscience. - 16 (2023), p. 1-16. -
További szerzők:Gajtkó Andrea (1989-) (molekuláris biológus) Hegedűs Krisztina Bakk Erzsébet Kis Gréta (1979-) (molekuláris biológus) Gaál Botond Ágoston (1982-) (anatómus, neurobiológus) Takács Roland Ádám (1985-) (molekuláris biológus, biokémikus) Szűcs Péter (1974-) (kutatóorvos) Matesz Klára (1949-) (anatómus, neurobiológus) Holló Krisztina (1967-) (vegyész)
Pályázati támogatás:KTIA_NAP_13-2-2014-0005
Egyéb
2017-1.2.1-NKP-2017-00002
Egyéb
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2.

001-es BibID:BIBFORM029726
Első szerző:Kulik Ákos
Cím:Sub-population of capsaicin sensitive primary afferent neurons in thoracic, lumbar and sacral dorsal root ganglion in young rats revealed by stimulated cobalt uptake / Kulik A., Polgár E., Matesz K., Kothalawala S., Szűcs P., Nagy I.
Dátum:1996
ISSN:0236-5383
Megjegyzések:The number of dorsal root ganglion (DRG) neurons, the relative number of capsaicin sensitive DRG cells and the diameter distribution of these neurons were investigated in the thoracic 11, lumbar 5 and sacral 1 DRG ganglia in young rats. The capsaicin sensitivity of DRG cells was shown by the stimulated cobalt uptake technique in in vitro conditions. Cobalt labelled and non-labelled neurons were counted using the dissector method. Our results show that the total number of DRG cells in the Th11, L5 and S1 segments (4200-6500 per ganglion) were not significantly different from each other and about 8% of these cells were capsaicin sensitive in the segments studied. These findings also show that the capsaicin sensitive DRG cells belong to the small diameter DRG cell population. Control experiments on neonatally capsaicin injected animals indicate that the capsaicin stimulated cobalt uptake provides selective and specific staining of capsaicin sensitive DRG neurons.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény hazai lapban
Megjelenés:Acta Biologica Hungarica. - 47 : 1-4 (1996), p. 251-259. -
További szerzők:Polgár E. Matesz Klára (1949-) (anatómus, neurobiológus) Kothalawala, D. S. Szűcs Péter (1974-) (kutatóorvos) Nagy I. (orvos)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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3.

001-es BibID:BIBFORM029803
Első szerző:Polgár Erika
Cím:Immunohistochemical localization of neurokinin-l receptor in the lumbar spinal cord of young rats : morphology and distribution / Erika Polgár, Péter Szűcs, László Urbán, Klára Matesz, István Nagy
Dátum:1999
Megjegyzések:The type and distribution of neurokinin-1 (NK-1) receptor-expressing neurones were studied in young (14-day-old) rats' lumbar spinal cord using pre-embedding immunohistochemistry. The heaviest immunoreactivity was observed in the middle part and lateral fourth of lamina I where the great majority of immunoreactive perikarya represented fusiform and multipolar cells. In lamina II the middle and medial part showed moderate immunoreactivity, most of the cells resembled stalked cells. In lamina III the labelled perikarya were evenly distributed, while those in lamina IV accumulated mainly in the lateral part. In both laminae most of the labelled neurones represented central cells, the rest of them belonged to the antenna-type cells with long dorsally directed dendrites penetrating the superficial laminae. The immunoreactivity in laminae V-VII was uniform and relatively weak. In lamina VIII the immunopositive perikarya were encountered only rarely while in lamina IX virtually all motoneurones showed weak immunoreactivity. Lamina X contained small, multipolar and fusiform labelled perikarya. In conclusion, we found that the general appearance of the NK-1 receptor immunostaining and the major type of NK-I receptor-expressing neurones were similar to that found previously in adult spinal cord. Using the same method as Brown and colleagues the number of labelled NK- 1 receptor immunoreactive cells was similar in young and adult animals except lamina I where the number of immunoreactive neurones was twice that in adults.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:Somatosensory and Motor Research. - 16 : 4 (1999), p. 361-368. -
További szerzők:Szűcs Péter (1974-) (kutatóorvos) Urbán László (London, UK) Matesz Klára (1949-) (anatómus, neurobiológus) Nagy István (orvos)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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4.

001-es BibID:BIBFORM067782
035-os BibID:(Cikkazonosító)41221 (WOS)000392644200001 (Scopus)85010799947
Első szerző:Torres-Pérez, Jose Vicente
Cím:Phosphorylated Histone 3 at Serine 10 Identifies Activated Spinal Neurons and Contributes to the Development of Tissue Injury-Associated Pain / Jose Vicente Torres-Pérez, Péter Sántha, Angelika Varga, Péter Szücs, Joao Suosa-Valente, Botond Gaál, Miklós Sivadó, Anna P. Andreou, Sara Beattie, Bence Nagy, Klára Matesz, J. Simon C. Arthur, Gábor Jancsó, István Nagy
Dátum:2017
ISSN:2045-2322
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 7 : 41221 (2017), p. 1-17. -
További szerzők:Sántha Péter Varga Angelika (1977-) (biológus) Szűcs Péter (1974-) (kutatóorvos) Suosa-Valente, Joao Gaál Botond Ágoston (1982-) (anatómus, neurobiológus) Sivadó Miklós Andreou, Anna P. Beattie, Sara Nagy Bence Matesz Klára (1949-) (anatómus, neurobiológus) C. Arthur, J. Simon Jancsó Gábor Nagy István (orvos)
Pályázati támogatás:KTIA_NAP_13-2-2014-0005
Egyéb
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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