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1.

001-es BibID:BIBFORM101339
035-os BibID:(scopus)85127787477 (wos)000786332700001
Első szerző:Ádám Dorottya (molekuláris biológus)
Cím:Opioidergic Signaling : a Neglected, Yet Potentially Important Player in Atopic Dermatitis / Dorottya Ádám, József Arany, Kinga Fanni Tóth, Balázs István Tóth, Attila Gábor Szöllősi, Attila Oláh
Dátum:2022
ISSN:1661-6596 1422-0067
Megjegyzések:Atopic dermatitis (AD) is one of the most common skin diseases, the prevalence of which is es-pecially high among children. Although our understanding about its pathogenesis has substan-tially grown in recent years, and hence, several novel therapeutic targets have been successfully exploited in the management of the disease, we still lack curative treatments for it. Thus, there is an unmet societal demand to identify further details of its pathogenesis to thereby pave the way for novel therapeutic approaches with favorable side effect profiles. It is commonly accepted that dysfunction of the complex cutaneous barrier plays a central role in the development of AD; therefore, the signaling pathways involved in the regulation of this quite complex process are likely to be involved in the pathogenesis of the disease and can provide novel, promising, yet unexplored therapeutic targets. Thus, in the current review, we aim to summarize the available potentially AD-relevant data regarding one such signaling pathway, namely cutaneous opi-oidergic signaling.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
atopic dermatitis (AD)
cutaneous barrier
[delta]-opioid receptor (DOR)
inflammation
itch
[delta]-opioid receptor (KOR)
keratinocyte
mast cell
[delta]-opioid receptor (MOR)
nociceptin/orphanin FQ (NOP) receptor
opioid
skin
Megjelenés:International Journal Of Molecular Sciences. - 23 : 8 (2022), p. 4140. -
További szerzők:Arany József (1990-) (klinikai laboratóriumi kutató, vegyész) Tóth Kinga Fanni (1992-) (molekuláris biológus, élettanász) Tóth István Balázs (1978-) (élettanász) Szöllősi Attila Gábor (1982-) (élettanász) Oláh Attila (1984-) (élettanász)
Pályázati támogatás:GINOP-2.3.2-15-2016-00026
GINOP
NKFIH 120187
Egyéb
NKFIH 134235
Egyéb
NKFIH 134725
Egyéb
NKFIH 134993
Egyéb
EFOP-3.6.3-VEKOP-16-2017-00009
EFOP
Bolyai János Kutatási Ösztöndíj (BO/00660/21/5)
MTA
Bolyai János Kutatási Ösztöndíj (BO/00905/19/5)
MTA
ÚNKP-21-5-DE-465
Egyéb
ÚNKP-21-5-DE-491
Egyéb
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2.

001-es BibID:BIBFORM132287
Első szerző:Al Ashkar, Habib (népegészségügyi szakember)
Cím:The Impact of Smoking-Associated Genetic Variants on Post-Exercise Heart Rate / Al Ashkar Habib, Kharrat Helu Nihad, Kovacs Nora, Fiatal Szilvia, Adany Roza, Piko Peter
Dátum:2025
ISSN:1661-6596 1422-0067
Megjegyzések:Smoking has a well-established impact on cardiovascular health, notably through ele- vated resting heart rate and impaired autonomic regulation?both key risk factors. While nicotine's acute effects are well documented, the influence of smoking-related genetic variants on heart rate (HR) responses remains unclear. This study investigated the asso- ciation between selected smoking-related single nucleotide polymorphisms (SNPs) and HR dynamics following physical exertion. A total of 661 Hungarian adults completed the YMCA 3 min step test, with HR measured at rest, immediately post-exercise, and during recovery at 5 and 10 min. Key indices included post-exercise HR (HRaft), HR change (?HR), maximum HR percentage (HRmax%), and heart rate recovery coefficient (HRR). Genetic analysis focused on nine SNPs previously linked to smoking behaviours, with a composite genetic risk score derived from the three most influential variants (rs2235186, rs4142041, and rs578776). Associations were examined using adjusted linear regression. No significant relationship was found between any individual SNP and resting HR. However, rs2235186, rs4142041, and rs578776 were consistently associated with elevated HRaft, increased ?HR, higher HRmax%, and slower HRR. The genetic risk score showed significant correlations with all post-exercise HR measures, suggesting a cumulative genetic effect. These findings indicate that smoking-related genetic predisposition may influence autonomic cardiovascu- lar responses to physical activity. Although resting HR remains unaffected, specific SNPs are linked to post-exercise HR dynamics and recovery, highlighting the potential value of genetic screening in personalised cardiovascular risk assessment among smokers
Tárgyszavak:Orvostudományok Egészségtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
smoking
single nucleotide polymorphisms
heart rate recovery
cardiovascular risk
genetic predisposition
YMCA step test
genetic risk score
Megjelenés:International Journal Of Molecular Sciences. - 26 : 18 (2025), p. 1-17. -
További szerzők:Kharrat Helu, Nihad (1992-) Kovács Nóra (1989-) (népegészségügyi szakember) Fiatal Szilvia (1978-) (epidemiológus, népegészségügyi szakember) Ádány Róza (1952-) (megelőző orvostan és népegészségtan szakorvos) Pikó Péter (1987-) (biológus)
Pályázati támogatás:GINOP-2.3.2-15-2016-00005
GINOP
TK2016-78
MTA
Hungarian Research Network?HUN-REN (TKCS-2021/32)
Egyéb
Project No. 135784 - National Research, Development, and Innovation Fund of Hungary
Egyéb
National Laboratory for Health Security Hungary (RRF-2.3.1-21-2022-00006)
Egyéb
Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences (BO/00513/23/5)
Egyéb
EKÖP-24-4 University Research Scholarship Program of the Ministry for Culture and Innovation from the source of the National Research, Development and Innovation Fund
Egyéb
Stipendium Hugaricum Scholarship Program, provided by the Tempus Public Foundation and the Hungarian Government
Egyéb
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3.

001-es BibID:BIBFORM123542
035-os BibID:(Scopus)85202750993 (WoS)001307359100001
Első szerző:Al Ashkar, Habib (népegészségügyi szakember)
Cím:Association of CETP Gene Polymorphisms and Haplotypes with Acute Heart Rate Response to Exercise / Al Ashkar Habib, Kovács Nóra, Veres-Balajti Ilona, Ádány Róza, Pikó Péter
Dátum:2024
ISSN:1661-6596 1422-0067
Megjegyzések:Polymorphisms in the cholesteryl ester transfer protein (CETP) gene are known to be strongly associated with increased cardiovascular risk, primarily through their effects on the lipid profile and consequently on atherosclerotic risk. The acute heart rate response (AHRR) to physical activity is closely related to individual cardiovascular health. This study aimed to investigate the effect of CETP gene polymorphisms on AHRR. Our analysis examines the association of five single nucleotide polymorphisms (SNPs; rs1532624, rs5882, rs708272, rs7499892, and rs9989419) and their haplotypes (H) in the CETP gene with AHRR in 607 people from the Hungarian population. Individual AHRR in the present study was assessed using the YMCA 3-min step test and was estimated as the difference between resting and post-exercise heart rate, i.e., delta heart rate (Delta HR). To exclude the direct confounding effect of the CETP gene on the lipid profile, adjustments for TG and HDL-C levels, next to conventional risk factors, were applied in the statistical analyses. Among the examined five SNPs, two showed a significant association with lower Delta HR (rs1532624-C-dominant: B = -8.41, p < 0.001; rs708272-G(dominant): B = -8.33, p < 0.001) and reduced the risk of adverse AHRR (rs1532624-C-dominant: OR = 0.44, p = 0.004; rs708272-G(dominant): OR = 0.43, p = 0.003). Among the ten haplotypes, two showed significant association with lower Delta HR (H3-CAGCA: B = -6.81, p = 0.003; H9-CGGCG: B = -14.64, p = 0.015) and lower risk of adverse AHRR (H3-CAGCA: OR = 0.58, p = 0.040; H9-CGGCG: OR = 0.05, p = 0.009) compared to the reference haplotype (H1-AGACG). Our study is the first to report a significant association between CETP gene polymorphisms and AHRR. It also confirms that the association of the CETP gene with cardiovascular risk is mediated by changes in heart rate in response to physical activity, in addition to its effect on lipid profile.
Tárgyszavak:Orvostudományok Egészségtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
cardiovascular risk
haplotype
acute heart rate response
cholesteryl ester transfer protein
genomics
Megjelenés:International Journal Of Molecular Sciences. - 25 : 16 (2024), p. 1-10.-
További szerzők:Kovács Nóra (1989-) (népegészségügyi szakember) Veres-Balajti Ilona (1965-) (gyógytornász, egészségfejlesztő) Ádány Róza (1952-) (megelőző orvostan és népegészségtan szakorvos) Pikó Péter (1987-) (biológus)
Pályázati támogatás:GINOP-2.3.2-15-2016-00005
GINOP
TK2016-78
MTA
Hungarian Research Network-HUN-REN (TKCS-2021/32)
Egyéb
National Research, Development, and Innovation Fund of Hungary K_20 programme
Egyéb
National Laboratory for Health Security Hungary (RRF-2.3.1-21-2022-00006)
Egyéb
ÚNKP-23-5-DE-494
Egyéb
Janos Bolyai Research Scholarship (BO/00513/23/5)
MTA
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Intézményi repozitóriumban (DEA) tárolt változat
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4.

001-es BibID:BIBFORM081567
035-os BibID:(scopus)85074364799 (wos)000498946100096
Első szerző:Aladdin, Azzam (molekuláris biológus)
Cím:Juvenile Huntington's disease skin fibroblasts respond with elevated parkin level and increased proteasome activity as a potential mechanism to counterbalance the pathological consequences of mutant huntingtin protein / Azzam Aladdin, Róbert Király, Pal Boto, Zsolt Regdon, Krisztina Tar
Dátum:2019
ISSN:1661-6596 1422-0067
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:International Journal of Molecular Sciences. - 20 : 21 (2019), p. 1-39. -
További szerzők:Király Róbert (1975-) (biológus) Botó Pál (1986-) (molekuláris biológus) Regdon Zsolt (1988-) (biokémikus, molekuláris biológus) Tar Krisztina (1975-) (biokémikus, molekuláris biológus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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5.

001-es BibID:BIBFORM116412
035-os BibID:(scopus)85174693451 (wos)001085010700001
Első szerző:Alimohammadi, Shahrzad (Gyógyszerész)
Cím:Factors Influencing Marker Expressions of Cultured Human Cord Blood-Derived Mast Cells / Alimohammadi Shahrzad, Masuda-Kuroki Kana, Szöllősi Attila Gábor, Di Nardo Anna
Dátum:2023
ISSN:1422-0067
Megjegyzések:Mast cells (MCs) are tissue-resident immune cells of a hematopoietic origin that play vital roles in innate and adaptive immunity. Human MCs can be isolated and differentiated from various tissue sources, including cord blood, when supplemented with cytokines such as stem cell factor, interleukin 3, and interleukin 6. Our current research study has shown significant differences in the marker expressions of human cord blood-derived mast cells (hCBMCs) based on donor dependency and the type of medium used for culturing and differentiation. These findings are particularly relevant given the challenges of obtaining specialty media influencing MC phenotypic marker expressions. We found that hCBMCs cultured in StemSpanTM-XF medium had a moderate expression of mast/stem cell growth factor receptor Kit (c-KIT) (mRNA and protein), low expressions of Fc?RI (mRNA) and TLR2 (mRNA and protein) but had high levels of MRGPRX2 (mRNA and protein) expressions. In contrast, hCBMCs cultured in Stem Line II medium expressed Fc?RI and TLR2 (mRNA and protein) with higher c-KIT but had lower MRGPRX2 expressions compared to the hCBMCs cultured in the StemSpanTM-XF medium. These results suggest that it is crucial to consider both donor dependency and the medium when investigating MC functions and that further research is needed to fully understand the impact of these factors on the hCBMC marker expressions.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
human stem cells
CD34+ cord blood-derived mast cells
immune response
c-KIT
Fc?RI
MRGPRX2
TLR2
tryptase
chymase
Megjelenés:International Journal Of Molecular Sciences. - 24 : 19 (2023), p. 1-11. -
További szerzők:Masuda-Kuroki, Kana Szöllősi Attila Gábor (1982-) (élettanász) Di Nardo, Anna
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6.

001-es BibID:BIBFORM089749
035-os BibID:(scopus)85094855183 (wos)000588924400001
Első szerző:Alvarado, Gerardo
Cím:Heme-Induced Oxidation of Cysteine Groups of Myofilament Proteins Leads to Contractile Dysfunction of Permeabilized Human Skeletal Muscle Fibres / Alvarado Gerardo, Tóth Attila, Csősz Éva, Kalló Gergő, Dankó Katalin, Csernátony Zoltán, Smith Ann, Gram Magnus, Akerström Bo, Édes István, Balla György, Papp Zoltán, Balla József
Dátum:2020
ISSN:1661-6596 1422-0067
Megjegyzések:Heme released from red blood cells targets a number of cell components including the cytoskeleton. The purpose of the present study was to determine the impact of free heme (20?300 ?M) on human skeletal muscle fibres made available during orthopedic surgery. Isometric force production and oxidative protein modifications were monitored in permeabilized skeletal muscle fibre segments. A single heme exposure (20 ?M) to muscle fibres decreased Ca2+-activated maximal (active) force (Fo) by about 50% and evoked an approximately 3-fold increase in Ca2+-independent (passive) force (Fpassive). Oxidation of sulfhydryl (SH) groups was detected in structural proteins (e.g., nebulin, ?-actinin, meromyosin 2) and in contractile proteins (e.g., myosin heavy chain and myosin-binding protein C) as well as in titin in the presence of 300 ?M heme. This SH oxidation was not reversed by dithiothreitol (50 mM). Sulfenic acid (SOH) formation was also detected in the structural proteins (nebulin, ?-actinin, meromyosin). Heme effects on SH oxidation and SOH formation were prevented by hemopexin (Hpx) and ?1-microglobulin (A1M). These data suggest that free heme has a significant impact on human skeletal muscle fibres, whereby oxidative alterations in structural and contractile proteins limit contractile function. This may explain and or contribute to the weakness and increase of skeletal muscle stiffness in chronic heart failure, rhabdomyolysis, and other hemolytic diseases. Therefore, therapeutic use of Hpx and A1M supplementation might be effective in preventing heme-induced skeletal muscle alterations.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
skeletal muscle fibre
contractile dysfunction
heme
sulfhydryl groups
sulfenic acid formation
chronic heart failure
oxidation; hemopexin
[alfa]1-microglobulin
skeletal muscle myopathy
Megjelenés:International Journal Of Molecular Sciences. - 21 : 21 (2020), p. 1-17. -
További szerzők:Tóth Attila (1971-) (biológus) Csősz Éva (1977-) (biokémikus, molekuláris biológus) Kalló Gergő (1989-) (molekuláris biológus) Dankó Katalin (1952-2021) (belgyógyász, allergológus és klinikai immunológus) Csernátony Zoltán (1959-2023) (ortopéd sebész, traumatológus) Smith, Ann Gram, Magnus Akerström, Bo Édes István (1952-) (kardiológus) Balla György (1953-) (csecsemő és gyermekgyógyász, neonatológus) Papp Zoltán (1965-) (kardiológus, élettanász) Balla József (1959-) (belgyógyász, nephrológus)
Pályázati támogatás:EFOP-3.6.2-16-2017-00006
EFOP
OTKA-K-132828
OTKA
K-84300
OTKA
K-109083
OTKA
GINOP-2.3.2-15-2016-00043
GINOP
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7.

001-es BibID:BIBFORM095750
035-os BibID:(scopus)85110606156 (wos)000681958900001
Első szerző:Angyal Ágnes (molekuláris biológus)
Cím:Anandamide Concentration-Dependently Modulates Toll-Like Receptor 3 Agonism or UVB-Induced Inflammatory Response of Human Corneal Epithelial Cells / Ágnes Angyal, Zsófia Pénzes, Shahrzad Alimohammadi, Dorottya Horváth, Lili Takács, György Vereb, Barbara Zsebik, Tamás Bíró, Kinga Fanni Tóth, Erika Lisztes, Balázs István Tóth, Attila Oláh, Attila Gábor Szöllősi
Dátum:2021
ISSN:1661-6596 1422-0067
Megjegyzések:Photodamage-induced and viral keratitis could benefit from treatment with novel nonsteroid anti-inflammatory agents. Therefore, we determined whether human corneal epithelial cells (HCECs) express members of the endocannabinoid system (ECS), and examined how the endocannabinoid anandamide (AEA, N-arachidonoyl ethanolamine) influences the Toll-like receptor 3 (TLR3) agonism- or UVB irradiation-induced inflammatory response of these cells. Other than confirming the presence of cannabinoid receptors, we show that endocannabinoid synthesizing and catabolizing enzymes are also expressed in HCECs in vitro, as well as in the epithelial layer of the human cornea in situ, proving that they are one possible source of endocannabinoids. p(I:C) and UVB irradiation was effective in promoting the transcription and secretion of inflammatory cytokines. Surprisingly, when applied alone in 100 nM and 10 ?M, AEA also resulted in increased pro-inflammatory cytokine production. Importantly, AEA further increased levels of these cytokines in the UVB model, whereas its lower concentration partially prevented the transcriptional effect of p(I:C), while not decreasing the p(I:C)-induced cytokine release. HCECs express the enzymatic machinery required to produce endocannabinoids both in vitro and in situ. Moreover, our data show that, despite earlier reports about the anti-inflammatory potential of AEA in murine cornea, its effects on the immune phenotype of human corneal epithelium may be more complex and context dependent.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
endocannabinoid
inflammation
anandamide
TLR3
cornea
Megjelenés:International Journal Of Molecular Sciences. - 22 : 15 (2021), p. 7776. -
További szerzők:Pénzes Zsófia (1992-) (klinikai laboratóriumi kutató) Alimohammadi, Shahrzad (1991-) (Gyógyszerész) Horváth Dorottya (1994-) (molekuláris biológus) Takács Lili (1969-) (szemész) Vereb György (1965-) (biofizikus, orvos) Zsebik Barbara (1977-) (biofizikus) Bíró Tamás (1968-) (élettanász) Tóth Kinga Fanni (1992-) (molekuláris biológus, élettanász) Lisztes Erika (1986-) (élettanász) Tóth István Balázs (1978-) (élettanász) Oláh Attila (1984-) (élettanász) Szöllősi Attila Gábor (1982-) (élettanász)
Pályázati támogatás:EFOP-3.6.3-VEKOP-16-2017-00009
EFOP
GINOP-2.3.2-15-2016-00050
GINOP
GINOP-2.3.2-15-2016-00020
GINOP
ÚNKP-20-5-DE-100
Egyéb
ÚNKP-20-5-DE-422
Egyéb
FK 125053
NKFIH
PD 128034
NKFIH
K 135938
NKFIH
FK 134235
NKFIH
FK 134993
NKFIH
FK 134725
NKFIH
PD 134791
NKFIH
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Intézményi repozitóriumban (DEA) tárolt változat
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8.

001-es BibID:BIBFORM128478
035-os BibID:(scopus)86000603830 (wos)001443886800001
Első szerző:Antal Miklós (orvos, anatómus)
Cím:Molecular Anatomy of Synaptic and Extrasynaptic Neurotransmission Between Nociceptive Primary Afferents and Spinal Dorsal Horn Neurons / Antal Miklós
Dátum:2025
ISSN:1661-6596 1422-0067
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:International Journal Of Molecular Sciences. - 26 : 5 (2025), p. 1-46. -
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Intézményi repozitóriumban (DEA) tárolt változat
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9.

001-es BibID:BIBFORM130040
035-os BibID:(WoS)001496459600001 (Scopus)105006790506
Első szerző:Aradi Zsófia (belgyógyász szakorvos)
Cím:Additive Value of Rheumatoid Factor Isotypes in Sjögren's Syndrome Patients with Joint Complaints of Different Etiologies : Can Rheumatoid Factor IgA Serve as an Early, Poor Prognostic Biomarker Candidate? / Zsófia Aradi, Bernadett Bói, Gábor Nagy, Péter Antal-Szalmás, Kincső Mezei, Ildikó Fanny Horváth, Antónia Szántó
Dátum:2025
ISSN:1661-6596 1422-0067
Megjegyzések:The aim of the paper was to characterize rheumatoid factor IgA, IgG, and IgM isotypes in patients with Sjögren's syndrome (SS) subsets, based on the absence or presence of joint complaints of different etiologies. In total, 164 SS patients were grouped based on whether they had polyarthritis as an extraglandular manifestation (n = 73, SS+pa), rheumatoid arthritis as an associated autoimmune disorder (n = 46, SS+RA), or Sjögren's syndrome without inflammatory joint pain (n = 45, SS). The highest IgA rheumatoid factor isotype levels were detected in SS patients, whereas the lowest levels were found in the SS+RA group, without a significant difference. Neither IgG nor IgM RF differed significantly between the patient subclasses. In addition to other disease-specific markers, seropositive patients who were seropositive for any RF isotype were significantly more frequently anti-Ro/SS-A and anti-La/SS-B positive and had higher ESSDAI levels. In SS and SS+pa patients, a strong negative correlation was observed between IgA RF and age, whereas a strong positive correlation was found between IgA RF and ESSDAI, RF, IgA, IgG, anti-Ro/SS-A, and anti-La/SS-B levels. High total IgG levels together with high IgA RF levels occurred most frequently in SS patients (p = 0.05), whereas the combination of normal IgG and high IgM RF was significantly more frequent in the SS+RA group. The co-occurrence of high total IgG and normal IgM RF did not differ significantly between the patient subsets; however, this was the combination with the highest sensitivity (94.5%) for SS+pa patients. Based on our findings, rheumatoid factor isotypes have an additive value in the differentiation of non-erosive polyarthritis and erosive rheumatoid arthritis during the disease course of patients with Sjögren's syndrome. All rheumatoid factor isotypes predict a more severe disease course, but IgA RF may serve as a candidate for being an early, poor prognostic factor for SS patients.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Sjögren's syndrome
polyarthritis
rheumatoid arthritis
rheumatoid factor isotypes
rheumatoid factor
biomarker
Megjelenés:International Journal Of Molecular Sciences. - 26 : 10 (2025), p. 1-13. -
További szerzők:Bói Bernadett Nagy Gábor (1974-) (laboratóriumi szakorvos, laboratóriumi hematológus és immunológus) Antal-Szalmás Péter (1968-) (laboratóriumi szakorvos) Mezei Kincső (1995-) (orvos) Horváth Ildikó Fanny (1980-) (belgyógyász, allergológus, klinikai immunológus) Szántó Antónia (1977-) (belgyógyász, allergológus és klinikai immunológus)
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Intézményi repozitóriumban (DEA) tárolt változat
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10.

001-es BibID:BIBFORM055556
035-os BibID:(scopus)84907867357 (wos)000343109700119
Első szerző:Ba, Xueqing
Cím:The Role of 8-Oxoguanine DNA Glycosylase-1 in Inflammation / Xueqing Ba, Leopoldo Aguilera-Aguirre, Qura Tul Ain Nmi Rashid, Attila Bacsi, Zsolt Radak, Sanjiv Sur, Koa Hosoki, Muralidhar L. Hegde, Istvan Boldogh
Dátum:2014
ISSN:1661-6596 1422-0067
Megjegyzések:Many, if not all, environmental pollutants/chemicals and infectious agents increase intracellular levels of reactive oxygen species (ROS) at the site of exposure. ROS not only function as intracellular signaling entities, but also induce damage to cellular molecules including DNA. Among the several dozen ROS-induced DNA base lesions generated in the genome, 8-oxo-7,8-dihydroguanine (8-oxoG) is one of the most abundant because of guanine's lowest redox potential among DNA bases. In mammalian cells, 8-oxoG is repaired by the 8-oxoguanine DNA glycosylase-1 (OGG1)-initiated DNA base excision repair pathway (OGG1-BER). Accumulation of 8-oxoG in DNA has traditionally been associated with mutagenesis, as well as various human diseases and aging processes, while the free 8-oxoG base in body fluids is one of the best biomarkers of ongoing pathophysiological processes. In this review, we discuss the biological significance of the 8-oxoG base and particularly the role of OGG1-BER in the activation of small GTPases and changes in gene expression, including those that regulate pro-inflammatory chemokines/cytokines and cause inflammation.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:International Journal of Molecular Sciences. - 15 : 9 (2014), p. 16975-16997. -
További szerzők:Aguilera-Aguirre, Leopoldo Rashid, Qura Tul Ain Nmi Bácsi Attila (1967-) (immunológus) Radák Zsolt Sur, Sanjiv Hosoki, Koa Hegde, Muralidhar L. Boldogh István
Pályázati támogatás:TAMOP 4.2.2.A-11/1/KONV-2012-2023
TÁMOP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

11.

001-es BibID:BIBFORM118924
035-os BibID:(Scopus)85184721995 (WoS)001161185700001
Első szerző:Bácsi Attila (immunológus)
Cím:Radiation-Detoxified Form of Endotoxin Effectively Activates Th1 Responses and Attenuates Ragweed-Induced Th2-Type Airway Inflammation in Mice / Attila Bácsi, Beatrix Ágics, Kitti Pázmándi, Béla Kocsis, Viktor Sándor, Lóránd Bertók, Géza Bruckner, Sándor Sipka
Dátum:2024
ISSN:1422-0067
Megjegyzések:Urbanization with reduced microbial exposure is associated with an increased burden of asthma and atopic symptoms. Conversely, environmental exposure to endotoxins in childhood can protect against the development of allergies. Our study aimed to investigate whether the renaturation of the indoor environment with aerosolized radiation-detoxified lipopolysaccharide (RD-LPS) has a preventative effect against the development of ragweed-induced Th2-type airway inflammation. To explore this, cages of six-week-old BALB/c mice were treated daily with aerosolized native LPS (N-LPS) or RD-LPS. After a 10-week treatment period, mice were sensitized and challenged with ragweed pollen extract, and inflammatory cell infiltration into the airways was observed. As dendritic cells (DCs) play a crucial role in the polarization of T-cell responses, in our in vitro experiments, the effects of N-LPS and RD-LPS were compared on human monocyte-derived DCs (moDCs). Mice in RD-LPS-rich milieu developed significantly less allergic airway inflammation than mice in N-LPS-rich or common environments. The results of our in vitro experiments demonstrate that RD-LPS-exposed moDCs have a higher Th1-polarizing capacity than moDCs exposed to N-LPS. Consequently, we suppose that the aerosolized, non-toxic RD-LPS applied in early life for the renaturation of urban indoors may be suitable for the prevention of Th2-mediated allergies in childhood.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
endotoxin
lipopolysaccharide
radiation-detoxified
Th2-type airway inflammation
allergy
dendritic cells
ragweed
mice
Megjelenés:International Journal Of Molecular Sciences. - 25 : 3 (2024), p. 1-22. -
További szerzők:Ágics Beatrix (1995-) (molekuláris biológus) Pázmándi Kitti Linda (1984-) (molekuláris biológus, immunológus) Kocsis Béla Sándor Viktor Bertók Lóránd (1934-) (sugárbiológus, immunológus) Bruckner Géza Sipka Sándor (1945-) (laboratóriumi szakorvos)
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

12.

001-es BibID:BIBFORM136499
035-os BibID:(scopus)105030022323 (wos)001687805800001
Első szerző:Baddour, Saraa
Cím:Chelidonine Induces Concurrent Elevation of pSer-STAT3 and Bcl-2 Levels in a Mitotic Subpopulation of Human T-Leukemia/Lymphoma Cells / Baddour Saraa, Szöllősi János, Mátyus László, Vámosi György, Csomós István, Bodnár Andrea
Dátum:2026
ISSN:1661-6596 1422-0067
Megjegyzések:Signal transducer and activator of transcription 3 (STAT3) is a transcription factor that regulates a broad spectrum of genes with oncogenic potential, thereby serving as a critical driver of tumorigenesis. Canonical STAT3 function is mediated through tyrosine phosphorylation, which enables dimerization and transcriptional activation, whereas serine phosphorylation of STAT3 has a postulated role in fine-tuning canonical functions and contributes to non-canonical roles as well. One of the transcriptional targets of STAT3 is the anti-apoptotic B-cell lymphoma 2 (Bcl-2) protein, itself subject to phosphorylation-dependent regulation. In this study, we investigated the effect of chelidonine, an alkaloid component of Chelidonium majus L., on STAT3/Bcl-2 signaling in human T leukemia/lymphoma cells, reported to have numerous effects in common with microtubule-targeting agents (MTAs). Flow cytometry and confocal microscopy revealed that chelidonine transiently increased both serine-phosphorylated STAT3 (pSer-STAT3) and Bcl-2 levels in a distinct subpopulation of cells, with near-complete overlap between the affected cells. This effect appeared at least partially independent of interleukin-2 (IL-2) and was associated with the M-phase of the cell cycle, as indicated by enhanced phosphorylation of Bcl-2 at serine 70 and nuclear morphology characteristic of mitosis. Our study provides the first single-cell evidence that STAT3 and Bcl-2 undergo concurrent serine phosphorylation as a response to chelidonine treatment, with the effect tightly linked to the M-phase.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
signal transducer and activator of transcription 3 (STAT3) signaling
chelidonine
B-cell lymphoma 2 (Bcl-2)
interleukin-2 (IL-2)
flow cytometry
confocal microscopy
human T-cell leukemia/lymphoma
Megjelenés:International Journal Of Molecular Sciences. - 27 : 3 (2026), p. 1-21. -
További szerzők:Szöllősi János (1953-) (biofizikus) Mátyus László (1956-) (biofizikus) Vámosi György (1967-) (biofizikus) Csomós István (1983-) (molekuláris biológus) Dóczy-Bodnár Andrea (1970-) (biofizikus)
Pályázati támogatás:ANN 135107
OTKA
K146028
OTKA
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DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:
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