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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:BIBFORM008849
Első szerző:Börzsei Rita
Cím:Presence of pituitary adenylate cyclase activating polypeptide-38 in human plasma and milk / Rita Borzsei, Laszlo Mark, Andrea Tamas, Terez Bagoly, Csaba Bay, Katalin Csanaky, Eszter Banki, Peter Kiss, Alexandra Vaczy, Gabriella Horvath, Jozsef Nemeth, Edit Szauer, Zsuzsanna Helyes, Dora Reglodi
Dátum:2009
ISSN:0804-4643 (Print)
Megjegyzések:Pituitary adenylate cyclase activating polypeptide (PACAP) is a pleiotropic and multifunctional neuropeptide widely distributed throughout the body. It is involved in the regulation of various physiological and pathophysiological processes, such as reproduction, thermoregulation, motor activity, brain development, neuronal survival, inflammation and pain. Since little is known about its distribution in humans, our aim was to examine PACAP-38 in human plasma. Furthermore, based on the presence of vasoactive intestinal peptide, structurally the closest to PACAP, in milk and PACAP and its receptors in the mammary gland, our aim was to study PACAP-38 in human milk.Design and methods: The presence of PACAP-38 was determined by mass spectrometry in plasma samples from healthy male and female volunteers (age: 20-40), as well as in plasma and milk samples from lactating women (age: 20-35). PACAP concentration was measured with a specific and sensitive RIA. Results: Our results revealed that PACAP-38 is present in human plasma, its concentration is relatively stable in healthy volunteers and it is not significantly altered by gender, age, food intake or hormonal cycle in females. However, PACAP-38 plasma levels significantly increased in lactating women having 1-6 month-old babies. Moreover, this study is the first which provides evidence for the presence of PACAP-38 in the human milk with levels 5-20-fold greater in the milk whey than in the respective plasma samples. Conclusions: We found PACAP-38 in human plasma and its increase during the first 6 months of the lactation period. A prominent, nearly 10-fold higher concentration of this peptide was detected in human milk. Based on the literature, several important actions of milk-derived PACAP-38 can be suggested such as mammary gland proliferation, nutrient transfer as well as regulation of growth/differentiation of certain tissues of the neonates. The novelty of the present descriptive data provides a basis for further investigations on the mechanism of PACAP-38 secretion in human milk and its functional significance.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
PACAP-38 human plasma, human milk
Megjelenés:European Journal of Endocrinology. - 160 : 4 (2009), p. 561-565. -
További szerzők:Márk László (1956-) (belgyógyász, kardiológus) Tamás Andrea (Idegtudomány) (Pécs) Bagoly Teréz Bay Csaba Csanaky Katalin Bánki Eszter Kiss Péter Váczy Alexandra Horváth Gabriella Németh József (1954-) (vegyész, analitikus) Szauer Edit Helyes Zsuzsanna Reglődi Dóra (Idegtudományok)
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3.

001-es BibID:BIBFORM031294
Első szerző:Brubel Réka
Cím:Investigation of pituitary adenylate cyclase activating polypeptide in human gynecological and other biological fluids by using MALDI TOF mass spectrometry. / Brubel R., Reglodi D., Jambor E., Koppan M., Varnagy A., Biro Z., Kiss P., Gaal V., Bodis J., Bay Cs., Veszpremi B., Tamas A., Nemeth J., Mark L.
Dátum:2011
Megjegyzések:Pituitary adenylate cyclase activating polypeptide (PACAP) is a multifunctional and pleiotropic neuropeptide. PACAP hasdiverse effects in the endocrine system, among others, it plays important roles in oogenesis, implantation and development ofthe nervous system.However, it is not knownwhether PACAP is present in the fluids of the human reproductive organs. The aimof the present study was to determine, by means of mass spectrometry and radioimmunoassay, whether PACAP is present inhuman amniotic fluid, ovarian follicular fluid and cervico-vaginal fluid. Samples were obtained from healthy adult volunteers.Our MALDI TOF and MALDI TOF/TOF spectrometry results show that PACAP38 is present in all of the follicular fluid samples,and PACAP-like immonoreactivity was also measured by radioimmunoassay. However, we did not find the characteristic peakrepresenting the unmodified 38 amino acid form of the peptide in normal cervico-vaginal smear and amniotic fluid samples.Furthermore, we analyzed other body fluids for comparison, such as human nasal fluid, saliva and aqueous humor. PACAPwas not found in these latter samples. In summary, the present study provides evidence for the presence of PACAP in humanfollicular fluid, suggesting a role in oocyte function, but determination of the exact physiological significance awaits furtherinvestigation.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
cervico-vaginal fluid
amniotic fluid
follicular fluid
nasal fluid
saliva
aqueous humor
mass spectrometry
radioimmunoassay
Megjelenés:Journal of Mass Spectrometry. - 46 : 2 (2011), p. 189-194. -
További szerzők:Reglődi Dóra (Idegtudományok) Jámbor E. Koppán Miklós Várnagy A. Biró Zsolt (szemész) Kiss P. Gaál V. Bodis József (Pécs) Bay Csaba Veszprémi B. Tamás A. (Pécs) Németh József (1954-) (vegyész, analitikus) Mark L.
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4.

001-es BibID:BIBFORM031291
Első szerző:Brubel Réka
Cím:Presence of pituitary adenylate cyclase activating polypeptide and its type I receptor in the rat kidney / Brubel R., Horvath G., Reglodi D., Lubics A., Tamas A., Kiss P., Laszlo E., Nemeth J., Mark L., Szakaly P.
Dátum:2011
Megjegyzések:Pituitary adenylate cyclase activating polypeptide (PACAP), a multifunctional neuropeptide,has 2 active forms, PACAP38 and PACAP27. It is now well-established that PACAPhas several actions also in peripheral organs, including renoprotective effects. The peptideitself has not been previously identified in the rat kidney. The first aim of our study was toidentify PACAP in the rat kidney using mass spectrometry and radioimmunoassay (RIA).Receptor mRNA and binding studies revealed the existence of all 3 PACAP receptors(PAC1, VPAC1, and VPAC2) in the kidney, but their exact localization in histologicsections was not evident. Because most of the cytoprotective effects of PACAP relate to itsspecific PAC1 receptor, our second aim was to identify the cell types wherein the PAC1receptor is expressed in the rat kidney. Mass spectrometry revealed the presence ofPACAP38 in the kidney. RIA measurements showed both PACAP38- and PACAP27-likeimmunoreactivities in kidney homogenates, with PACAP38 being dominant. Immunohistochemistryrevealed PAC1 receptor-like immunoreactivity in kidney sections, mainlyexpressed in cortical tubular epithelial cells. These results showed PACAP to beendogenously present in the kidney. The tubular localization of the PAC1 receptorprovides the basis for the renal effects of the peptide under physiologic and pathologicconditions.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
PACAP38
PACAP27
rat kidney
receptor
Megjelenés:Transplantation Proceedings. - 43 : 4 (2011), p. 1297-1299. -
További szerzők:Horváth Gábor (Pécs) Reglődi Dóra (Idegtudományok) Lubics Andrea (Pécs) Tamás Andrea (Idegtudomány) (Pécs) Kiss Péter (Pécs) László E. Németh József (1954-) (vegyész, analitikus) Mark L. Szakály Péter
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5.

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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6.

001-es BibID:BIBFORM021890
Első szerző:Czeglédi Levente (agrármérnök)
Cím:Presence of pituitary adenylate cyclase-activating polypeptide (PACAP) in the plasma and milk of ruminant animals / Czeglédi Levente, Tamás Andrea, Borzsei Rita, Bagoly Teréz, Kiss Péter, Horváth Gabriella, Brubel Réka, Németh József, Szalontai Bálint, Szabadfi Krisztina, Jávor András, Reglódi Dóra, Helyes Zsuzsanna
Dátum:2011
Megjegyzések:Milk contains a variety of proteins and peptides that possess biological activity. Growth factors, such as growth hormone, insulin-like, epidermal and nerve growth factors are important milk components which may regulate growth and differentiation in various neonatal tissues and also those of the mammary gland itself. We have recently shown that pituitary adenylate cyclase-activating polypeptide (PACAP), an important neuropeptide with neurotrophic actions, is present in the human milk in much higher concentration than in the plasma of lactating women. Investigation of growth factors in the milk of domestic animals is of utmost importance for their nutritional values and agricultural significance. Therefore, the aim of the present study was to determine the presence and concentration of PACAP in the plasma and milk of three ruminant animal species. Furthermore, the presence of PACAP and its specific PAC1 receptor were investigated in the mammary glands. Radioimmunoassay measurements revealed that PACAP was present in the plasma and the milk of the sheep, goat and the cow in a similar concentration to that measured previously in humans. PACAP38-like immunoreactivity (PACAP38-LI) was 5-20-fold higher in the milk than in the plasma samples of the respective animals, a similar serum/milk ratio was found in all the three species. The levels did not show significant changes within the examined 3-month-period of lactation after delivery. Similar PACAP38-LI was measured in the homogenates of the sheep mammary gland samples taken 7 and 30 days after delivery. PAC1 receptor expression was detected in these udder biopsies by fluorescent immunohistochemistry suggesting that this peptide might have an effect on the mammary glands themselves. These data show that PACAP is present in the milk of various ruminant domestic animal species at high concentrations, the physiological implications of which awaits further investigation.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:General and Comparative Endocrinology. - 172 : 1 (2011), p. 115-119. -
További szerzők:Tamás Andrea (Idegtudomány) (Pécs) Borzsei Rita (agrár) Bagoly Teréz Kiss Péter Horváth Gabriella Brubel Réka Németh József (1954-) (vegyész, analitikus) Szalontai Bálint (Pécsi Egyetem) Szabadfi Krisztina (Pécsi Egyetem) Jávor András (1952-) (agrármérnök) Reglődi Dóra (Idegtudományok) Helyes Zsuzsanna
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7.

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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8.

001-es BibID:BIBFORM008851
Első szerző:Ferencz A. (Pécs)
Cím:Changes and effect of PACAP-38 on intestinal ischemia-reperfusion and Autotransplantation / A. Ferencz, B. Rácz, A. Tamás, K. Nedvig, J. Németh, K. Kalmár-Nagy, Ö. P. Horváth, Gy. Wéber, E. Röth, D. Reglödi
Dátum:2009
ISSN:0041-1345 (Print)
Megjegyzések:Tissue injury caused by cold preservation and reperfusion during small bowel transplantation remains an unsolved problem. Increasing evidence suggests that pituitary adenylate cyclaseactivating polypeptide (PACAP) has protective effects in several ischemia-reperfusion (I/R) models. This study investigated the effect of PACAP-38 on oxidative stress in autotransplanted intestine. We established sham-operated, I/R, and autotransplanted groups in Wistar rats (n = 55). We applied ischemia for 1 (GI), 2 (GII), or 3 hours (GIII). In autotransplanted groups, we performed total orthotopic intestinal autotransplantation. Grafts were preserved in University of Wisconsin (UW) solution for 1 (GIV), 2 (GV), 3 (GVI), or 6 (GVII) hours and in PACAP-38-containing UW for 1 (GVIII), 2 (GIX), 3 (GX), or 6 (GXI) hours. Reperfusion lasted 3 hours in each group. Endogenous PACAP-38 values were measured by radioimmunoassay. Oxidative stress parameters malondialdehyde (MDA), reduced glutathione (GSH), and superoxide dismutase (SOD) were measured in tissue homogenates. Concentration of endogenous PACAP-38 significantly decreased in GI to GIII compared with the sham-operated animals following I/R periods (P < .05). Cold preservation in UW and reperfusion of the intestine increased the level of tissue MDA in GIV to GVII, which correlated with the duration of cold storage. The content of GSH decreased in GIV to GVII to levels that were significantly different between GIV and GVIII and between GVII and GXI. SOD activity decreased dramatically in GIV to GVII with significantly higher activity in GIX to GXI. Our findings confirmed that I/R decreased endogenous PACAP-38 concentration. Administration of PACAP-38 to UW solution mitigated the oxidative injury during intestinal autotransplantation.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
PACAP-38 on Intestinal Ischemia-Reperfusion
Megjelenés:Transplantation Proceedings. - 41 : 1 (2009), p. 57-59. -
További szerzők:Rácz Boglárka Tamás A. (Pécs) Nedvig Klára Németh József (1954-) (vegyész, analitikus) Kalmár-Nagy Károly Horváth Örs Péter (sebész) Wéber György Rőth Erzsébet (1957-) (vegyész) Reglődi Dóra (Idegtudományok)
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9.

001-es BibID:BIBFORM061062
Első szerző:Helyes Zsuzsanna
Cím:Pituitary Adenylate Cyclase-Activating Polypeptide Is Upregulated in Murine Skin Inflammation and Mediates Transient Receptor Potential Vanilloid-1-Induced Neurogenic Edema / Zsuzsanna Helyes, Jozsef Kun, Nora Dobrosi, Katalin Sándor, Jozsef Németh, Aniko Perkecz, Erika Pintér, Krisztina Szabadfi, Balazs Gaszner, Valeria Tékus, Janos Szolcsányi, Martin Steinhoff, Hitoshi Hashimoto, Dora Reglődi, Tamas Bíró
Dátum:2015
ISSN:0022-202X
Megjegyzések:Although pituitary adenylate cyclase-activating polypeptide (PACAP) was described as a key vasoregulator inhuman skin, little is known about its expression in mouse skin. As it is important to investigate PACAP signaling intranslational mouse dermatitis models, we determined its presence, regulation, and role in neurogenic and nonneurogeniccutaneous inflammatory mechanisms. The mRNA of PACAP and its specific receptor PAC1 wasdetected with real-time PCR in several skin regions at comparable levels. PACAP-38-immunoreactivity measuredwith radioimmunoassay was similar in plantar and dorsal paw skin and the ear but significantly smaller in theback skin. PACAP and PAC1 mRNA, as well as PACAP-38 and PAC1 protein expression, significantly increased in theplantar skin after intraplantar administration of capsaicin (50 ?l, 100 ?gml?1), an agonist of the transient receptorpotential vanilloid 1 (TRPV1) receptor, evoking chiefly neurogenic inflammation without inflammatory cellaccumulation. Intraplantar complete Freund's adjuvant (CFA; 50 ?l, 1mgml?1) also increased PACAP/PAC1 mRNAbut not the PACAP peptide. Capsaicin-induced neurogenic paw edema, but not CFA-evoked non-neurogenicswelling, was significantly smaller in PACAP-deficient mice throughout a 24-hour period. To our knowledge, weprovide previously unreported evidence for PACAP and PAC1 expression upregulation during skin inflammation ofdifferent mechanisms and for its pro-inflammatory function in neurogenic edema formation.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
cross-talk
sebaceous gland
sebocytes
skin homeostasis
Megjelenés:Journal Of Investigative Dermatology 135 : 9 (2015), p. 2209-2218. -
További szerzők:Kun József Dobrosi Nóra (1981-) (molekuláris biológus) Sándor Katalin Németh József (1954-) (vegyész, analitikus) Perkecz Anikó Pintér Erika Szabadfi Krisztina (Pécsi Egyetem) Gaszner Balázs (Neuroanatómia) Tékus Valéria Szolcsányi János (Pécs) Steinhoff, Martin Hashimoto, Hitoshi Reglődi Dóra (Idegtudományok) Bíró Tamás (1968-) (élettanász)
Pályázati támogatás:OTKA-104984
OTKA
OTKA-PD100706
OTKA
OTKA-101761
OTKA
OTKA105369
OTKA
TÁMOP-4.2.2./A-11/1/KONV-2012-0025
TÁMOP
TÁMOP-4.2.4.A/ 2- 11/1-2012-0001
TÁMOP
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10.

001-es BibID:BIBFORM002467
Első szerző:Helyes Zsuzsanna
Cím:Inhibitory effect of PACAP-38 on acute neurogenic and non-neurogenic inflammatory processes in the rat / Z. Helyes, G. Pozsgai, R. Börzsei , J. Németh, T. Bagoly, L. Márk, E. Pintér, G. Tóth, K. Elekes, J. Szolcsányi, D. Reglodi
Dátum:2007
Megjegyzések:Inhibitory actions of pituitary adenylate cyclase activating polypeptide (PACAP) have been described on cellular/vascular inflammatory components, but there are few data concerning its role in neurogenic inflammation. In this study we measured PACAP-like immunoreactivity with radioimmunoassay in the rat plasma and showed a two-fold elevation in response to systemic stimulation of capsaicin-sensitive sensory nerves by resiniferatoxin, but not after local excitation of cutaneous afferents. Neurogenic plasma extravasation in the plantar skin induced by intraplantar capsaicin or resiniferatoxin, as well as carrageenaninduced paw edema were significantly diminished by intraperitoneal PACAP-38. In summary, these results demonstrate that PACAP is released from activated capsaicin-sensitive afferents into the systemic circulation. It diminishes acute pure neurogenic and mixed-type inflammatory reactions via inhibiting pro-inflammatory mediator release and/or by acting at post-junctional targets on the vascular endothelium.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Capsaicin-sensitive sensory nerves
Megjelenés:Peptides. - 28 : 9 (2007), p. 1847-1855. -
További szerzők:Pozsgai Gábor Börzsei Rita Bagoly Teréz Márk László (1956-) (belgyógyász, kardiológus) Pintér Erika Tóth G. Elekes Krisztián Szolcsányi János (Pécs) Reglődi Dóra (Idegtudományok) Németh József (1954-) (vegyész, analitikus)
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11.

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)
Internet cím:elektronikus változat
DOI
Borító:

12.

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)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
DOI
Borító:
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