CCL

Összesen 7 találat.
#/oldal:
Részletezés:
Rendezés:

1.

001-es BibID:BIBFORM099535
Első szerző:Bartáné Tóth Beáta (molekuláris biológus)
Cím:Regulatory modules of human thermogenic adipocytes : functional genomics of large cohort and Meta-analysis derived marker-genes / B. Tóth Beáta, Barta Zoltán, Barta Ákos Barnabás, Fésüs László
Dátum:2021
ISSN:1471-2164
Megjegyzések:Background Recently, ProFAT and BATLAS studies identified brown and white adipocytes marker genes based on analysis of large databases. They offered scores to determine the thermogenic status of adipocytes using the gene-expression data of these markers. In this work, we investigated the functional context of these genes. Results Gene Set Enrichment Analyses (KEGG, Reactome) of the BATLAS and ProFAT marker-genes identified pathways deterministic in the formation of brown and white adipocytes. The collection of the annotated proteins of the defined pathways resulted in expanded white and brown characteristic protein-sets, which theoretically contain all functional proteins that could be involved in the formation of adipocytes. Based on our previously obtained RNA-seq data, we visualized the expression profile of these proteins coding genes and found patterns consistent with the two adipocyte phenotypes. The trajectory of the regulatory processes could be outlined by the transcriptional profile of progenitor and differentiated adipocytes, highlighting the importance of suppression processes in browning. Protein interaction network-based functional genomics by STRING, Cytoscape and R-Igraph platforms revealed that different biological processes shape the brown and white adipocytes and highlighted key regulatory elements and modules including GAPDH-CS, DECR1, SOD2, IL6, HRAS, MTOR, INS-AKT, ERBB2 and 4-NFKB, and SLIT-ROBO-MAPK. To assess the potential role of a particular protein in shaping adipocytes, we assigned interaction network location-based scores (betweenness centrality, number of bridges) to them and created a freely accessible platform, the AdipoNET (https//adiponet.com), to conveniently use these data. The Eukaryote Promoter Database predicted the response elements in the UCP1 promoter for the identified, potentially important transcription factors (HIF1A, MYC, REL, PPARG, TP53, AR, RUNX, and FoxO1). Conclusion Our integrative approach-based results allowed us to investigate potential regulatory elements of thermogenesis in adipose tissue. The analyses revealed that some unique biological processes form the brown and white adipocyte phenotypes, which presumes the existence of the transitional states. The data also suggests that the two phenotypes are not mutually exclusive, and differentiation of thermogenic adipocyte requires induction of browning as well as repressions of whitening. The recognition of these simultaneous actions and the identified regulatory modules can open new direction in obesity research.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:BMC Genomics. - 22 : 1 (2021), p. 1-21. -
További szerzők:Barta Zoltán (1967-) (biológus, zoológus) Barta Ákos Barnabás Fésüs László (1947-) (orvos biokémikus)
Pályázati támogatás:GINOP-2.3.2-15-2016-00006
GINOP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

2.

001-es BibID:BIBFORM054512
Első szerző:Brignull, Louise M.
Cím:Reprogramming of lysosomal gene expression by interleukin-4 and Stat6 / Louise M. Brignull, Zsolt Czimmerer, Hafida Saidi, Bence Daniel, Izabel Villela, Nathan W. Bartlett, Sebastian L. Johnston, Lisiane B. Meira, Laszlo Nagy, Axel Nohturfft
Dátum:2013
ISSN:1471-2164
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:BMC Genomics [electronic resource]. - 14 : 1 (2013), p. 1-20. -
További szerzők:Czimmerer Zsolt (1981-) (molekuláris biológus) Saidi, Hafida Dániel Bence (1987-) (molekuláris biológus) Villela, Izabel Bartlett, Nathan W. Johnston, Sebastian L. Meira, Lisiane B. Nagy László (1966-) (molekuláris sejtbiológus, biokémikus) Nohturfft, Axel
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

3.

001-es BibID:BIBFORM037889
Első szerző:Meskó Bertalan (kutatóorvos)
Cím:Peripheral blood gene expression patterns discriminate among chronic inflammatory diseases and healthy controls and identify novel targets / Bertalan Mesko, Szilard Poliska, Andrea Szegedi, Zoltan Szekanecz, Karoly Palatka, Maria Papp, Laszlo Nagy
Dátum:2010
ISSN:1755-8794
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
egyetemen (Magyarországon) készült közlemény
Megjelenés:BMC Medical Genomics [electronic resource]. - 3 : 1 (2010), p. 15. -
További szerzők:Póliska Szilárd (1978-) (biológus) Szegedi Andrea (1964-) (bőrgyógyász) Szekanecz Zoltán (1964-) (reumatológus, belgyógyász, immunológus) Palatka Károly (1961-) (belgyógyász, gasztroenterológus) Papp Mária (1975-) (belgyógyász, gasztroenterológus) Nagy László (1966-) (molekuláris sejtbiológus, biokémikus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
DOI
elektronikus változat
Borító:

4.

001-es BibID:BIBFORM065115
Első szerző:Nagy Gergely (molekuláris biológus)
Cím:Motif oriented high-resolution analysis of ChIP-seq data reveals the topological order of CTCF and cohesin proteins on DNA / Gergely Nagy, Erik Czipa, László Steiner, Tibor Nagy, Sándor Pongor, László Nagy, Endre Barta
Dátum:2016
ISSN:1471-2164
Megjegyzések:BACKGROUND:ChIP-seq provides a wealth of information on the approximate location of DNA-binding proteins genome-wide. It is known that the targeted motifs in most cases can be found at the peak centers. A high resolution mapping of ChIP-seq peaks could in principle allow the fine mapping of the protein constituents within protein complexes, but the current ChIP-seq analysis pipelines do not target the basepair resolution strand specific mapping of peak summits.RESULTS:The approach proposed here is based on i) locating regions that are bound by a sufficient number of proteins constituting a complex; ii) determining the position of the underlying motif using either a direct or a de novo motif search approach; and iii) determining the exact location of the peak summits with respect to the binding motif in a strand specific manner. We applied this method for analyzing the CTCF/cohesin complex, which holds together DNA loops. The relative positions of the constituents of the complex were determined with one-basepair estimated accuracy. Mapping the positions on a 3D model of DNA made it possible to deduce the approximate local topology of the complex that allowed us to predict how the CTCF/cohesin complex locks the DNA loops. As the positioning of the proteins was not compatible with previous models of loop closure, we proposed a plausible "double embrace" model in which the DNA loop is held together by two adjacent cohesin rings in such a way that the ring anchored by CTCF to one DNA duplex encircles the other DNA double helix and vice versa.CONCLUSIONS:A motif-centered, strand specific analysis of ChIP-seq data improves the accuracy of determining peak positions. If a genome contains a large number of binding sites for a given protein complex, such as transcription factor heterodimers or transcription factor/cofactor complexes, the relative position of the constituent proteins on the DNA can be established with an accuracy that allow one to deduce the local topology of the protein complex. The proposed high resolution mapping approach of ChIP-seq data is applicable for detecting the contact topology of DNA-binding protein complexes.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
CTCF
DNA loop
cohesin
ChIP-seq
Megjelenés:BMC Genomics. - 17 : 637 (2016), p. 1-9. -
További szerzők:Czipa Erik (1990-) (molekuláris biológus, bioinformatikus) Steiner László Nagy Tibor (Gödöllő) Pongor Sándor Nagy László (1966-) (molekuláris sejtbiológus, biokémikus) Barta Endre (1963-) (molekuláris biológus)
Pályázati támogatás:TÁMOP-4.2.2.C-11/1/KONV-2012-0010
TÁMOP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

5.

001-es BibID:BIBFORM097910
035-os BibID:(cikkazonosító)310
Első szerző:Nagy Nikoletta Andrea (biológus)
Cím:Draft genome of a biparental beetle species, Lethrus apterus / Nagy Nikoletta A., Rácz Rita, Rimington Oliver, Póliska Szilárd, Orozco-terWengel Pablo, Bruford Michael W., Barta Zoltán
Dátum:2021
ISSN:1471-2164
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:BMC Genomics. - 22 : 1 (2021). -
További szerzők:Rácz Rita (1989-) (biológus) Rimington, Oliver Póliska Szilárd (1978-) (biológus) Orozco-terWengel, Pablo Bruford, Michael W. Barta Zoltán (1967-) (biológus, zoológus)
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

6.

001-es BibID:BIBFORM081935
035-os BibID:(WOS)000499182500001 (Scopus)85075277364
Első szerző:Szabó Krisztina (molekuláris biológus)
Cím:Deletion of the fungus specific protein phosphatase Z1 exaggerates the oxidative stress response in Candida albicans / Krisztina Szabó, Ágnes Jakab, Szilárd Póliska, Katalin Petrényi, Katalin Kovács, Lama Hasan Bou Issa, Tamás Emri, István Pócsi, Viktor Dombrádi
Dátum:2019
ISSN:1471-2164
Megjegyzések:Background:Candida albicansis an opportunistic pathogen which is responsible for widespread nosocomialinfections. It encompasses a fungus specific serine/threonine protein phosphatase gene, CaPPZ1 that is involvedin cation transport, cell wall integrity, oxidative stress response, morphological transition, and virulence accordingto the phenotypes of thecappz1deletion mutant.Results:We demonstrated that a short-term treatment with a sublethal concentration oftert-butyl hydroperoxidesuppressed the growth of the fungal cells without affecting their viability, both in thecappz1mutant and in thegenetically matching QMY23 control strains. To reveal the gene expression changes behind the above observationswe carried out a global transcriptome analysis. We used a pilot DNA microarray hybridization together withextensive RNA sequencing, and confirmed our results by quantitative RT-PCR. Novel functions of the CaPpz1enzyme and oxidative stress mechanisms have been unraveled. The numbers of genes affected as well as theamplitudes of the transcript level changes indicated that the deletion of the phosphatase sensitized the responseofC. albicansto oxidative stress conditions in important physiological functions like membrane transport, cellsurface interactions, oxidation-reduction processes, translation and RNA metabolism.Conclusions:We conclude that in the wild typeC. albicansCaPPZ1 has a protective role against oxidative damage.We suggest that the specific inhibition of this phosphatase combined with mild oxidative treatment could be afeasible approach to topical antifungal therapy.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Candida albicans
Protein phosphatase Z1
Deletion mutant
Oxidative stress
tert-butyl hydoperoxide
Transcriptome
DNA microarray
RNA-Seq
Quantitative RT-PCR
Megjelenés:Bmc Genomics. - 20 (2019), p. 1-17. -
További szerzők:Jakab Ágnes (1987-) (biológus) Póliska Szilárd (1978-) (biológus) Petrényi Katalin (1988-) (Ph.D hallgató) Kovács Katalin (1978-) (biokémikus) Issa, Lama Hasan Bou Emri Tamás (1969-) (biológus) Pócsi István (1961-) (vegyész) Dombrádi Viktor (1953-) (biokémikus)
Pályázati támogatás:NKFIH-K108989
NKFIH
EFOP-3.6.1-16-2016-00022
EFOP
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
Borító:

7.

001-es BibID:BIBFORM049100
Első szerző:Veréb Zoltán (immunológus, mikrobiológus, molekuláris biológus)
Cím:Comparison of upstream regulators in human ex vivo cultured cornea limbal epithelial stem cells and differentiated corneal epithelial cells / Zoltán Veréb, Réka Albert, Szilárd Póliska, Ole Kristoffer Olstad, Saeed Akhtar, Morten C. Moe, Goran Petrovski
Dátum:2013
ISSN:1471-2164
Megjegyzések:BACKGROUND:The surface of the human eye is covered by corneal epithelial cells (CECs) which regenerate from a small population of limbal epithelial stem cells (LESCs). Cell therapy with LESCs is a non-penetrating treatment for preventing blindness due to LESC deficiency or dysfunction. Our aim was to identify new putative molecular markers and upstream regulators in the LESCs and associated molecular pathways.RESULTS:Genome-wide microarray transcriptional profiling was used to compare LESCs to differentiated human CECs. Ingenuity-based pathway analysis was applied to identify upstream regulators and pathways specific to LESCs. ELISA and flow cytometry were used to measure secreted and surface expressed proteins, respectively. More than 2 fold increase and decrease in expression could be found in 1830 genes between the two cell types. A number of molecules functioning in cellular movement (381), proliferation (567), development (552), death and survival (520), and cell-to-cell signaling (290) were detected having top biological functions in LESCs and several of these were confirmed by flow cytometric surface protein analysis. Custom-selected gene groups related to stemness, differentiation, cell adhesion, cytokines and growth factors as well as angiogenesis could be analyzed. The results show that LESCs play a key role not only in epithelial differentiation and tissue repair, but also in controlling angiogenesis and extracellular matrix integrity. Some pro-inflammatory cytokines were found to be important in stemness-, differentiation- and angiogenesis-related biological functions: IL-6 and IL-8 participated in most of these biological pathways as validated by their secretion from LESC cultures.CONCLUSIONS:The gene and molecular pathways may provide a more specific understanding of the signaling molecules associated with LESCs, therefore, help better identify and use these cells in the treatment of ocular surface diseases.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Limbal epithelial stem cells
Corneal epithelial cells
Gene array
Upstream regulators
Cytokines
Cell adhesion
IL-6
IL-8
Angiogenesis
Megjelenés:BMC Genomics. - 14 : 1 (2013), p. [1-33]. -
További szerzők:Albert Réka (1986-) Póliska Szilárd (1978-) (biológus) Olstad, Ole Kristoffer Akhtar, Saeed (1949-) (molekuláris biológus) Moe, Morten C. Petrovski, Goran (1975-) (orvos)
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Rekordok letöltése1 
Corvina könyvtári katalógus v8.2.27 © 2023 Monguz kft. Minden jog fenntartva.