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1.

001-es BibID:BIBFORM003873
Első szerző:Boros Ákos
Cím:Changes in the expression of PACAP-like compounds during the embryonic development of the earthworm eisenia fetida / Akos Boros, Dora Reglodi, Zsofia Herbert, Gabor Kiszler, Jozsef Nemeth, Andrea Lubics, Peter Kiss, Andrea Tamas, Seiji Shioda, Kouhei Matsuda, Edit Pollak, Laszló Molnar
Dátum:2008
Megjegyzések:Pituitary adenylate cyclase-activating polypeptide (PACAP) is expressed at very early stages in the vertebrate nervous system, and its functions in the embryonic development have been shown by various studies. PACAP is an extremely conserved molecule in phylogeny; however, little is known about its presence and functions in invertebrates. Our previous studies have shown the occurrence of PACAP-like immunoreactivity in the invertebrate nervous system. The aim of this study was to investigate the presence and localization of PACAP-like compounds during the embryonic development of earthworms from cocoon deposition to hatching using immunological methods (radioimmunoassay, dot blot, immunohistochemistry). PACAP-like immunoreactive compounds were detected at very early stages of the embryonic development of the earthworm Eisenia fetida. No significant changes were observed during the early stages in the developing embryo, but a marked increase occurred before hatching. In contrast, during the embryonic development, the level of PACAP-like compounds gradually decreased in cocoon fluids. Immunohistochemistry revealed the presence of PACAP-like immunoreactive cell bodies and processes in the developing body wall, prostomium, pharyngeal wall, and central nervous system. Cells located in the body wall correspond to putative progenitor cells of primary sensory cells. In the present study, we also showed that the clitellum (reproductive organ) of sexually mature worms contained significantly higher levels of PACAP-like immunoreactivity than other regions of the same animals or the clitellar region of a non-reproducing animal. In summary, these observations provide a morphological basis and suggest a role of PACAP(-like peptides) in the reproductive and developmental functions of invertebrates.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Dot blot
Clitellum
Cocoon
Earthworm
embryo
Primary sensory cells
Radioimmunoassay
Megjelenés:Journal of molecular neuroscience. - 36 : 1-3 (2008), p. 157-165. -
További szerzők:Reglődi Dóra (Idegtudományok) Herbert Zsófia Kiszler Gábor Németh József (1954-) (vegyész, analitikus) Lubics Andrea (Pécs) Kiss Péter Tamás Andrea (Idegtudomány) (Pécs) Shioda, Seiji Matsuda, Kouhei Pollák Edit Molnár László
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2.

001-es BibID:BIBFORM013274
Első szerző:Brubel Réka
Cím:Changes in the Expression of Pituitary Adenylate Cyclase-Activating Polypeptide in the Human Placenta during Pregnancy and Its Effects on the Survival of JAR Choriocarcinoma Cells/ R. Brubel, A. Boronkai, D. Reglodi, B. Racz, J. Nemeth, P. Kiss, A. Lubics, G. Toth, G. Horvath, T. Varga, D. Szogyi, E. Fonagy, J. Farkas, A. Barakonyi, Sz. Bellyei, L. Szereday, M. Koppan, A. Tamas
Dátum:2010
Megjegyzések:Pituitary adenylate cyclase-activating polypeptide(PACAP), a neuropeptide with survival-promotingactions, has been observed in endocrine organs and isthought to play a role in reproductive functions, includingpregnancy. PACAP occurs in two forms, 27 and 38 aminoacid residues, with PACAP38 being the predominant formin human tissues. In the present study, we determined theconcentrations of PACAP38 and PACAP27 in firsttrimesterand full-term human placentas using radioimmunoassay.We found high levels of PACAP38 and lowerlevels of PACAP27 in different parts of the full-term humanplacenta. PACAP38 content increased in the placentaduring pregnancy, both on the maternal side and on thefetal side. The effects of PACAP on the survival of JARhuman choriocarcinoma cells were investigated using flowcytometry and MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) cell viability assay in cellsexposed to the widely used chemotherapeutic agentmethotrexate (MTX). It was found that PACAP neitherinfluenced the survival of JAR cytotrophoblast cells noraffected cellular response to the death-inducing effect of thechemotherapeutic agent MTX. The present observationsfurther support the significance of PACAP in the humanplacenta. The observation that PACAP did not influence theeffects of MTX may have future clinical importance,showing that PACAP does not decrease the effects ofcertain chemotherapeutic agents.Keywords JAR . Choriocarcinoma . RIA .
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
JAR
Choriocarcinoma
RIA
PACAP38
Megjelenés:Journal of Molecular Neuroscience. - 42 : 3 (2010), p. 450-458. -
További szerzők:Boronkai A. Reglődi Dóra (Idegtudományok) Rácz B. (Pécs) Németh József (1954-) (vegyész, analitikus) Kiss Péter (Pécs) Lubics Andrea (Pécs) Tóth Gábor (Szeged) Horváth Gábor (Pécs) Varga T. (Pécs) Szogyi D. (Pécs) Fonagy E. Farkas J. (Pécs) Barakonyi A. Bellyei Szabolcs Szereday László Koppán Miklós Tamás A. (Pécs)
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3.

001-es BibID:BIBFORM008847
Első szerző:Ferencz Andrea
Cím:Influence of PACAP on oxidative stress and tissue injury following small-bowel autotransplantation / Ferencz A., Racz B., Tamas A., Reglodi D., Lubics A., Nemeth J., Nedvig K., Kalmar-Nagy K., Horvath O. P., Weber G., Roth E.
Dátum:2009
Megjegyzések:Abstract Tissue injury caused by cold preservation and reperfusion remains an unsolved problem during smallbowel transplantation. Pituitary adenylate cyclase-activating polypeptide (PACAP) is present and plays a central role in the intestinal physiology. This study investigated effect of PACAP-38 on the oxidative stress and tissue damage in autotransplanted intestine. Sham-operated, ischemia/reperfusion, and autotransplanted groups were established in Wistar rats. In ischemia/reperfusion groups, 1 h (group A), 2 h (group B), and 3 h (group C) ischemia followed by 3 h of reperfusion was applied. In autotransplanted groups, total orthotopic intestinal autotransplantation was performed. Grafts were preserved in University of Wisconsin (UW) solution and in UW containing 30 ?g PACAP-38 for 1, 2, 3, and 6 h. Reperfusion lasted 3 h in all groups. Endogenous PACAP-38 concentration was measured by radioimmunoassay. To determine oxidative stress parameters, malondialdehyde, reduced glutathione, and superoxide dismutase were measured in tissue samples. Tissue damage was analyzed by qualitative and quantitative methods on hematoxylin/eosinstained sections. Concentration of endogenous PACAP-38 significantly decreased in groups B and C compared to sham-operated group. Preservation solution containing PACAP-38 ameliorated bowel tissue oxidative injury induced by cold ischemia and reperfusion. Histological results showed that preservation caused destruction of the mucous, submucous, and muscular layers, which were further deteriorated by the end of reperfusion. In contrast, PACAPJ-38 significantly protected the intestinal structure. Ischemia/ reperfusion decreased the endogenous PACAP-38 concentration in the intestinal tissue. Administration of PACAP-38 mitigated the oxidative injury and histological lesions in small-bowel autotransplantation model.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Small-bowel transplantation
Megjelenés:Journal of Molecular Neuroscience. - 37 : 2 (2009), p. 168-176. -
További szerzők:Rácz Boglárka Tamás Andrea (Idegtudomány) (Pécs) Reglődi Dóra (Idegtudományok) Lubics Andrea (Pécs) Németh József (1954-) (vegyész, analitikus) Nedvig Klára Kalmár-Nagy Károly Horváth Örs Péter (sebész) Wéber György Rőth Erzsébet (1957-) (vegyész)
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4.

001-es BibID:BIBFORM003867
Első szerző:Hernádi László
Cím:The presence and distribution of pituitary adenylate cyclase activating polypeptide and its receptor in the snail helix pomatia / L. Hernádi, Z. Pirger, T. Kiss, J. Németh, L. Mark, P. Kiss, A. Tamas, A. Lubics, G. Toth, S. Shioda, D. Reglodi
Dátum:2008
Megjegyzések:The aim of this study was to show the presence, distribution and function of the pituitary adenylate cyclase activating polypeptide (PACAP) and its receptors in the CNS and peripheral nervous system of the mollusk, Helix pomatia. PACAP-like and pituitary adenylate cyclase activating polypeptide receptor (PAC1-R)-like immunoreactivity was abundant both in the CNS and the peripheral nervous system of the snail. In addition several non-neuronal cells also revealed PACAP-like immunoreactivity. In inactive animals labeled cell bodies were mainly found and in the neuropile of active animals dense immunostained fiber system was additionally detected suggesting that expression of PACAP-like peptide was affected by the behavioral state of the animal. RIA measurements revealed the existence of both forms of PACAP in the CNS where the 27 amino acid form was found to be dominant. The concentration of PACAP27 was significantly higher in samples from active animals supporting the data obtained by immunohistochemistry. In Western blot experiments PACAP27 and PACAP38 antibodies specifically labeled protein band at 4.5 kDa both in rat and snail brain homogenates, and additionally an 14 kDa band in snail. The 4.5 kDa protein corresponds to PACAP38 and the 14 kDa protein corresponds to the preproPACAP or to a PACAP-like peptide having larger molecular weight than mammalian PACAP38. In matrix-assisted laser desorption ionization time of flight (MALDI TOF) measurements fragments of PACAP38 were identified in brain samples suggesting the presence of a large molecular weight peptide in the snail. Applying antibodies developed against the PACAP receptor PAC1-R, immunopositive stained neurons and a dense network of fibers were identified in each of the ganglia. In electrophysiological experiments, extracellular application of PACAP27 and PACAP38 transiently depolarized or increased postsynaptic activity of neurons expressing PAC1-R. In several neurons PACAP elicited a long lasting hyperpolarization which was eliminated after 1.5 h continuous washing. Taken together, these results indicate that PACAP may have significant role in a wide range of basic physiological functions in snail.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
pituitary adenylate cyclase activating polypeptide,
Megjelenés:Neuroscience. - 155 : 2 (2008), p. 387-402. -
További szerzők:Pirger Zsolt Kiss Tibor Németh József (1954-) (vegyész, analitikus) Márk László (1956-) (belgyógyász, kardiológus) Kiss Péter Tamás Andrea (Idegtudomány) (Pécs) Lubics Andrea (Pécs) Tóth Gábor Shioda, Seiji Reglődi Dóra (Idegtudományok)
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5.

001-es BibID:BIBFORM013279
Első szerző:Horváth Gabriella
Cím:Mice deficient in pituitary adenylate cyclase activating polypeptide display increased sensitivity to renal oxidative stress in vitro / Gabriella Horvath, Laszlo Mark, Reka Brubel, Peter Szakaly, Boglarka Racz, Peter Kiss, Andrea Tamas, Zsuzsanna Helyes, Andrea Lubics, Hitoshi Hashimoto, Akemichi Baba, Norihito Shintani, Gergely Furjes, Jozsef Nemeth, Dora Reglodi
Dátum:2010
Megjegyzések:Pituitary adenylate cyclase activating polypeptide (PACAP) is a multifunctional neuropeptide, showingwidespread occurrence in the nervous system and also in peripheral organs. The neuroprotective effectsof PACAP are well-established in different neuronal systems against noxious stimuli in vitro and in vivo.Recently, its general cytoprotective actions have been recognized, including renoprotective effects. However,the effect of endogenous PACAP in the kidneys is not known. The main aim of the present studywas to investigate whether the lack of this endogenous neuropeptide influences survival of kidney cellsagainst oxidative stress. First, we determined the presence of endogenous PACAP from mouse kidneyhomogenates by mass spectrometry and PACAP-like immunoreactivity by radioimmunoassay. Second,primary cultures were isolated from wild type and PACAP deficient mice and cell viability was assessedfollowing oxidative stress induced by 0.5, 1.5 and 3mM H2O2. Our mass spectrometry and radioimmunoassayresults show that PACAP is endogenously present in the kidney. The main part of our studyrevealed that the sensitivity of cells from PACAP deficient mice was increased to oxidative stress: bothafter 2 or 4 h of exposure, cell viability was significantly reduced compared to that from control wild typemice. This increased sensitivity of kidneys from PACAP deficient mice could be counteracted by exogenouslygiven PACAP38. These results show, for the first time, that endogenous PACAP protects againstoxidative stress in the kidney, and that PACAP may act as a stress sensor in renal cells. These findingsfurther support the general cytoprotective nature of this neuropeptide.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Cell viability
Oxidative stress
PACAP knockout mice
Renoprotection
Megjelenés:Neuroscience Letters. - 469 : 1 (2010), p. 70-74. -
További szerzők:Márk László (1956-) (belgyógyász, kardiológus) Brubel Réka Szakály Péter Rácz Boglárka Kiss Péter Tamás Andrea (Idegtudomány) (Pécs) Helyes Zsuzsanna Lubics Andrea (Pécs) Hashimoto, Hitoshi Baba, Akemichi Shintani Norihito Fürjes Gergely Németh József (1954-) (vegyész, analitikus) Reglődi Dóra (Idegtudományok)
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6.

001-es BibID:BIBFORM042639
Első szerző:Koppán Miklós
Cím:Correlation Between Oocyte Number and Follicular Fluid Concentration of Pituitary Adenylate Cyclase-Activating Polypeptide (PACAP) in Women After Superovulation Treatment / M. Koppan, A. Varnagy, D. Reglodi, R. Brubel, J. Nemeth, A. Tamas, L. Mark, J. Bodis
Dátum:2012
Megjegyzések:Follicular growth, ovulation, and luteinization areinfluenced by interactions of peptide and steroid hormonesignalingcascades in the ovary. Pituitary adenylate cyclaseactivatingpolypeptide (PACAP) plays an important role in theregulation of several endocrine processes and is present inovarian follicular fluid (FF). However, little is known aboutPACAP in FF with regard to maturation, ovulation, fertilization,and successful pregnancy. The aim of this pilot study wasto investigate whether there is a correlation between PACAPconcentration in FF and ovarian response to superovulationtreatment in infertile women, performed in volunteers (n0132; aged between 20 and 35). After treatment, the numberof harvested oocytes was recorded and PACAP immunoreactivityin FF was measured by radioimmunoassay. All thecorresponding PACAP concentrations were below 290 fmol/ml in cases when the number of harvested oocytes exceeded 14per patient, while in all cases above 290 fmol/ml, the number ofoocytes was below 14. Using these cutoff values, we determinedthree study groups: high-PACAP concentration, highoocytenumber, and low-PACAP concentration?low-oocytenumber groups. Median values of PACAP concentration inthese groups were 411.2, 106.5, and 101.0 fmol/ml, respectively,while themedian values of harvested oocyteswere 5.5, 19.0,and 5.0, respectively. Differences were significant, indicating acorrelation between concentration of PACAP in FF and thenumber of recruited oocytes. Higher concentrations of PACAPin FF might be associated with lower number of developingoocytes, while low concentrations of PACAP might correlatewith a markedly higher number of ova retrieved, thus predictinga higher chance for ovarian hyperstimulation. Our presentstudy is among the first few human clinical studies with directconclusions drawn for possible clinical impact of PACAP.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
RIA
Follicular fluid
Superovulation treatment
Human
Neuropeptide
Megjelenés:Journal of Molecular Neuroscience. - 48 (2012), p. 617-622. -
További szerzők:Várnagy A. Reglődi Dóra (Idegtudományok) Brubel Réka Németh József (1954-) (vegyész, analitikus) Tamás A. (Pécs) Mark L. Bodis József (Pécs)
Pályázati támogatás:OTKA-72592
OTKA
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7.

001-es BibID:BIBFORM042646
Első szerző:Nedvig Klára
Cím:Changes of PACAP immunoreactivities and cytokine levels after PACAP-38 containing intestinal preservation and autotransplantation / Klara Nedvig, Gyorgy Weber, Jozsef Nemeth, Krisztina Kovacs, Dora Reglodi, Agnes Kemeny, Andrea Ferencz
Dátum:2012
Megjegyzések:Small bowel is one of the most sensitive organs toischemia?reperfusion injury, which is a significant problemduring transplantation. Pituitary adenylate cyclaseactivatingpolypeptide (PACAP) has cytoprotective effect inischemic injuries of various tissues. The aim of our study wasto measure changes of PACAP-38 and PACAP-27 immunoreactivitiesand cytokine levels in intestinal grafts stored inPACAP-38-containing preservation solution. Small bowelautotransplantation was performed on maleWistar rats. Graftswere stored in University ofWisconsin (UW) solution at 4 ?Cfor 1 h (group (G)I), for 3 h (GII), and for 6 h (GIII) and inPACAP-38-containing UW solution for 1 h (GIV), for 3 h(GV), and for 6 h (GVI).After preservation, performing vesselanastomosis reperfusion began, which lasted 3 h in eachgroup. Tissue biopsies were collected after laparotomy(control) and at the end of the reperfusion periods. IntestinalPACAP-38 and PACAP-27 immunoreactivities were measuredby radioimmunoassay. To measure cytokines from tissuehomogenates, we used rat cytokine array and LuminexMultiplex Immunoassay. Levels of PACAP-38 and PACAP-27 immunoreactivity decreased after 1 and 3 h preservationcompared to control levels. This decrease was significantfollowing 6 h cold storage (p<0.05). Values remained significantlyhigher in grafts stored in PACAP-38-containing UW.Cytokine array revealed that expression of the soluble intercellularadhesion molecule-1 (CD54) and L-selectin (CD62L/LECAM-1) was increased in GIII. Both 6 h cold storage inPACAP-38-containing UW solution and 3 h reperfusioncaused strong reduction in these cytokines activation in GVI.RANTES (CCL5) levels were increased in all groups. Strongactivation of the tissue inhibitor of metalloproteinase-1 was inGIII. However, PACAP-38-containing cold storage could decreaseits activation in GVI. Furthermore, strong activation ofthe tissue inhibitor of metalloproteinase-1 was detected in 6 hpreserved grafts without PACAP-38 (GIII). PACAP-38-containing cold storage could decrease its activation in GVI.Our present study showed that PACAP-38 and PACAP-27immunoreactivities decreased in a time-dependent mannerduring intestinal cold preservation, which could be amelioratedby administration of exogenous PACAP-38 to the preservationsolution. Moreover, PACAP-38 could attenuate tissuecold ischemic injury-induced changes in cytokine expression.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Small bowel
Transplantation
PACAP-38
PACAP-27
Cytokine
Megjelenés:Journal of Molecular Neuroscience. - 48 : 3 (2012), p. 788-794. -
További szerzők:Wéber György Németh József (1954-) (vegyész, analitikus) Kovács Krisztina (Pécs) Reglődi Dóra (Idegtudományok) Kemény Ágnes Ferencz Andrea
Pályázati támogatás:OTKA-77474
OTKA
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8.

001-es BibID:BIBFORM040247
Első szerző:Németh József (vegyész, analitikus)
Cím:Effect of pituitary adenylate cyclase activating polypeptide-38 on sensory neuropeptide release and neurogenic inflammation in rats and mice / J. Németh, D. Reglödi, G. Pozsgai, Á. Szabó, K. Elekes, E. Pintér, J. Szolcsányi, Z. Helyes
Dátum:2006
ISSN:0306-4522
Megjegyzések:Substance P (SP) and calcitonin gene-relatedpeptide (CGRP), released from capsaicin-sensitive sensorynerves induce local neurogenic inflammation, while somatostatinexerts systemic anti-inflammatory actions. The aimof the present study was to investigate the release of pituitaryadenylate cyclase activating polypeptide-38 (PACAP-38) andits effects on sensory neuropeptide release in vitro and acuteneurogenic ear swelling in vivo.Capsaicin (10-6 M) or electrical field stimulation (EFS; 40V, 0.1 ms, 10 Hz, 120 s; 1200 impulses)-induced release ofPACAP-38, SP, CGRP and somatostatin from isolated rattracheae was measured with radioimmunoassay. Mustardoil?induced neurogenic inflammation in the mouse ear wasdetermined with a micrometer and in the rat hind paw skin bythe Evans Blue leakage technique.Capsaicin and EFS evoked 27% and more than twofoldelevation of PACAP-38 release respectively, compared withthe prestimulated basal values from isolated trachea preparation.Exogenously administered PACAP-38 (20?2000 nM)diminished both capsaicin- and EFS-evoked sensory neuropeptiderelease in a concentration-dependent manner. Themaximal inhibitory effects of PACAP on capsaicin-inducedsubstance P, CGRP and somatostatin release amounted to75.4%, 73.3% and 90.0%, while EFS-evoked release of thesepeptides was 80.03%, 87.7% and 67.7%. In case of capsaicinstimulation the EC50 values for substance P, CGRP and somatostatinwere 82.9 nM, 60.1 nM and 66.9 nM, respectively.When EFS was performed, these corresponding EC50 datawere 92.1 nM, 67.8 nM and 20.9 nM. PACAP-38 (10, 100 and1000 g/kg i.p. in 200 l volume) inhibited neurogenic earswelling in the mouse. Furthermore, 100 g/kg i.p. PACAPalso significantly diminished mustard oil?evoked plasmaprotein extravasation in the rat skin.These results suggest that PACAP-38 is released from thestimulated peripheral terminals of capsaicin-sensitive afferentsand it is able to inhibit the outflow of sensory neuropeptides.Based on this mechanism of action PACAP is also ableto effectively diminish/abolish neurogenic inflammatory responsein vivo after systemic administration.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Neuroscience. - 143 : 1 (2006), p. 223-230. -
További szerzők:Reglődi Dóra (Idegtudományok) Pozsgai Gábor Szabó Á. Elekes K. Pintér E. Szolcsányi János (Pécs) Helyes Zsuzsanna
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9.

001-es BibID:BIBFORM003874
Első szerző:Pirger Zsolt
Cím:PACAP has anti-apoptotic effect in the salivary gland of an invertebrate species, helix pomatia / Zsolt Pirger, Jozsef Nemeth, Laszlo Hiripi, Gabor Toth, Peter Kiss, Andrea Lubics, Andrea Tamas, Laszlo Hernadi, Tibor Kiss, Dora Reglodi
Dátum:2008
Megjegyzések:Pituitary adenylate cyclase activating polypeptide (PACAP) shows a remarkable sequence similarity among species and several studies provide evidence that the functions of PACAP have also been conserved among vertebrate species. Relatively little is known about its presence and functions in invertebrates. The aim of the present study was to investigate whether the well-known anti-apoptotic effect of PACAP can also be demonstrated in invertebrates. This effect was studied in the salivary gland of a molluscan species, Helix pomatia. In this work, we first showed the presence of PACAP-like immunoreactivity in the Helix salivary gland by means of immunohistochemistry. Radioimmunoassay measurements showed that PACAP38-like immunoreactivity dominated in the salivary gland of both active and inactive snails and its concentration was higher in active than in inactive animals in contrast to PACAP27-like immunoreactivity, which did not show activity-dependent changes. PACAP induced a significant elevation of cAMP level in salivary gland extracts. Application of apoptosis-inducing agents, dopamine and colchicine, led to a marked increase in the number of terminal uridine deoxynucleotidyl transferase dUTP nick end labeling (TUNEL)-positive apoptotic cells in the salivary gland, which was significantly attenuated by PACAP treatment. In a similar manner, the number of caspase-positive cells was reduced after co-application of dopamine and PACAP. Taken together, the data indicate that PACAP activates cAMP in a molluscan species and we show, for the first time, that PACAP is anti-apoptotic in the invertebrate Helix pomatia.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Caspase-3
TUNEL
RIA
cAMP
Apoptosis
Megjelenés:Journal of molecular neuroscience. - 36 : 1-3 (2008), p. 105-114. -
További szerzők:Németh József (1954-) (vegyész, analitikus) Hiripi László Tóth Gábor Kiss Péter Lubics Andrea (Pécs) Tamás Andrea (Idegtudomány) (Pécs) Hernádi László Kiss Tibor Reglődi Dóra (Idegtudományok)
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10.

001-es BibID:BIBFORM003875
Első szerző:Reglődi Dóra (Idegtudományok)
Cím:Agonistic behavior of PACAP6-38 on sensory nerve terminals and cytotrophoblast cells / D. Reglodi, R. Borzsei, T. Bagoly, A. Boronkai, B. Racz, A. Tamas, P. Kiss, G. Horvath, R. Brubel, J. Nemeth, G. Toth, Z. Helyes
Dátum:2008
Megjegyzések:The effects of pituitary adenylate cyclase activating polypeptide (PACAP) are mediated through Gprotein-coupled receptors, the specific PAC1 receptor and VPAC1 and VPAC2 receptors which bind vasoactive intestinal peptide with similar affinity. Based on binding affinity studies, PACAP6-38 was discovered as a potent antagonist of PAC1 and it has been used by hundreds of studies as a PACAP antagonist. Recently, we have found that in certain cells/tissues, PACAP6-38 does not antagonize PACAP-induced effects, but surprisingly, it exerts similar actions to PACAP1-38, behaving as an agonist. In the present study, we report on the agonistic behavior of PACAP6-38 on neuropeptide release from sensory nerves of the isolated rat trachea and on the MAPK signaling pathways in cytotrophoblast cells. In isolated rat tracheae, PACAP6-38, similarly to PACAP1-38, induced significant inhibitory effects on the release of three simultaneously measured sensory neuropeptides, substance P, calcitonin gene-related peptide, and somatostatin evoked by both chemical excitation and electrical field stimulation of capsaicin-sensitive afferents. Effects of PACAP6-38 were the same as those of PACAP1-38 on MAPK signaling in human cytotrophoblast cells. Western blot analysis showed that both peptide forms stimulated ERK1/2 and JNK phosphorylation, while they both inhibited p38 MAPK phosphorylation. The most pronounced effects were observed when both peptides were present. In summary, our results show that PACAP6-38, which is a PACAP receptor antagonist in most cells/tissues, can behave as an agonist in other systems. The increasing interest in the effects of PACAP requires further studies on the pharmacological properties of the peptide and its analogues.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
PACAP fragment
Analogue
Somatostatin
Substance P
JAR cytotrophoblast
CGRP
Megjelenés:Journal of Molecular Neuroscience. - 36 : 1-3 (2008), p. 270-278. -
További szerzők:Börzsei Rita Bagoly Teréz Boronkai A. Rácz Boglárka Tamás Andrea (Idegtudomány) (Pécs) Kiss Péter Horváth G. Brubel Réka Tóth Gábor Helyes Zsuzsanna Németh József (1954-) (vegyész, analitikus)
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11.

001-es BibID:BIBFORM078047
Első szerző:Sárszegi Zsolt
Cím:Examination of Pituitary Adenylate Cyclase-Activating Polypeptide (PACAP) as a Potential Biomarker in Heart Failure Patients / Zsolt Sarszegi, Dora Szabo, Balazs Gaszner, Attila Konyi, Dora Reglodi, Jozsef Nemeth, Beata Lelesz, Beata Polgar, Adel Jungling, Andrea Tamas
Dátum:2019
ISSN:0895-8696 1559-1166
Megjegyzések:Pituitary adenylate cyclase-activating polypeptide (PACAP) is a pleiotropic and multifunctional neuropeptide having neurotrophic, neuroprotective, and general cytoprotective actions in a variety of tissues based on its anti-apoptotic, anti-inflammatory, and antioxidant effects. Several studies have demonstrated its cardioprotective effects in vitro and in various animal models. However, few data are available on the presence of PACAP in human cardiac tissues and its role in the pathomechanism and progression of different cardiac disorders, particularly heart failure. Earlier, our research group has shown PAC1 receptor immunoreactivity in human heart tissue samples and we have found significantly elevated PACAP27- and PACAP38-like immunoreactivity in ischemic cardiac samples compared to valvular abnormalities with radioimmunoassay. In the last few years, numerous studies examined the presence and the changes of PACAP levels in different human tissue samples and biological fluids to show alterations in different physiological and pathological conditions. Therefore, the aim of the present study was to measure the alterations of blood PACAP levels in chronic heart failure caused by primary dilated cardiomyopathy or ischemic cardiomyopathy and to examine the possible relationship between serum levels of PACAP, N-terminal prohormone of brain natriuretic peptide (NT-proBNP), and systolic left ventricular function, the most reliable biomarkers of heart failure. In the group of mild heart failure patients, a significant strong negative correlation was detected. Furthermore, in moderate heart failure, we found a significant moderate negative correlation between PACAP and NT-proBNP levels only in ischemic subgroup. Positive correlation was found between serum PACAP level and ejection fraction only in patientswith heart failure due to ischemic cardiomyopathy but not in patients with primary dilated cardiomyopathy. In summary, remarkable differences were observed between the ischemic and non-ischemic heart failure suggesting that PACAP might play an important role in the pathomechanism and progression of ischemic heart failure and it might be a potential biomarker of cardiac diseases in the future.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Dilated cardiomyopathy
Heart failure
NT-proBNP
PACAP
Megjelenés:Journal of Molecular Neuroscience. - 68 : 3 (2019), p. 368-376. -
További szerzők:Szabó Dóra Gaszner Balázs (Neuroanatómia) Kónyi Attila Reglődi Dóra (Idegtudományok) Németh József (1954-) (vegyész, analitikus) Lelesz Beáta (1989-) (molekuláris biológus) Polgár Beáta Jungling Adél Tamás Andrea (Idegtudomány) (Pécs)
Pályázati támogatás:K119759
OTKA
GINOP-2.3.2-15-2016-00050
OTKA
EFOP-3.6.1-16-2016-00004
EFOP
EFOP-3.6.2-16-2017-00009
EFOP
EFOP-3.6.2-16-2017-00008
EFOP
TAMOP 4.2.4.A/2-11-1-2012-0001
TÁMOP
UNKP-16-4-IV New National Excellence Program of the Ministry of Human Capacities
UNKP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

12.

001-es BibID:BIBFORM042640
035-os BibID:PMID:22648511
Első szerző:Szántó Zoltán
Cím:PACAP immunoreactivity in human malignant tumor samples and cardiac diseases / Z. Szanto, Zs. Sarszegi, D. Reglodi, J. Nemeth, K. Szabadfi, P. Kiss, A. Varga, E. Banki, K. Csanaky, B. Gaszner, O. Pinter, Zs. Szalai, A. Tamas
Dátum:2013
Megjegyzések:Pituitary adenylate cyclase activating polypeptide(PACAP) is a pleiotropic and multifunctional neuropeptidehaving important roles in various physiological processes.Recent trends in PACAP research point to the clinical introductionof PACAP or its analogs/fragments possibly in thenear future. Recently, we have shown the presence ofPACAP in human plasma, milk, placenta, and follicularfluid samples. However, relatively few data are availableon PACAP in human tissues from patients with differentdisorders. The aim of the present study was to determine, byradioimmunoassay, the tissue level of PACAP38-like immunoreactivity(LI) and PACAP27-LI in different primary nonsmallcell lung cancer, colon tumor samples, and in cardiacmuscle samples from patients suffering from ischemic heartdisease and valvular disorders. We also labeled the PAC1receptors in human cardiac cells. All samples showed significantlyhigher PACAP38-LI compared with PACAP27-LI. We found significantly lower levels of PACAP38-LI andPACAP27-LI in tumoral and peripheral samples comparedwith normal healthy tissue in both lung and colon cancers.Further investigations are necessary to describe the exactfunction of PACAP in oncogenesis. We showed thatPACAP38-LI and PACAP27-LI are significantly higher inischemic heart diseases compared with valvular abnormalities,suggesting that PACAP might play a role in ischemicheart disorders.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
PACAP
Colon cancer
Lung cancer
Heart disorder
PAC1 receptor
egyetemen (Magyarországon) készült közlemény
Megjelenés:Journal of Molecular Neuroscience. - 48 : 3 (2013), p. 667-673. -
További szerzők:Sárszegi Zsolt Reglődi Dóra (Idegtudományok) Németh József (1954-) (vegyész, analitikus) Szabadfi Krisztina (Pécsi Egyetem) Kiss P. Varga A. (anatómia, Pécs) Bánki Eszter Csanaky Katalin Gaszner Balázs (Neuroanatómia) Pintér Olivér Szalai Zsuzsanna Tamás A. (Pécs)
Pályázati támogatás:OTKA-75965
OTKA
OTKA-72592
OTKA
Internet cím:DOI
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