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Search results for: p53
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Elimination of wild-type P53 mRNA in glioblastomas showing heterozygous mutations of P53
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The imidazoacridinone C-1311 induces p53-dependent senescence or p53-independent apoptosis and sensitizes cancer cells to radiation
PublicationC-1311 is a small molecule, which has shown promise in a number of preclinical and clinical studies. However, the biological response to C-1311 exposure is complicated and has been reported to involve a number of cell fates. Here, we investigated the molecular signaling which determines the response to C-1311 in both cancer and non-cancer cell lines. For the first time we demonstrate that the tumor suppressor, p53 plays a key role...
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Resveratrol enhances apoptosis induced by the heterocyclic aromatic amines in p53-wt LoVo cells, but not in p53-deficient HaCaT cells
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ANALYSIS OF THE p53 PROTEIN GENE EXPRESSION MODEL
PublicationWe study the asymptotic behaviour of the solutions of the p53-Mdm2 model proposed by Monk (2003). The p53 gene is crucial for cellular inhibition of the angiogenesis process, while Mdm2 is a negative regulator of the p53 tumor-suppressor. We investigate the stability of the positive steady state and perform some numerical experiments.
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The induction of autophagy in human colon wt p53 and p53-null HCT116 cells by 4-methyl-1-nitroacridine derivative C-1748
PublicationPrzeprowadzone badania miały na celu określenie zdolności pochodnej 4-metylo-1-nitroakrydyny C-1748 do uruchomienia autofagii komórek ludzkiego raka okrężnicy HCT116 posiadających dziki gen p53 oraz podlinii nie posiadającej tego genu. Wszystkie eksperymenty przeprowadzone zostały przy stężeniu hamującym proliferację komórek nowotworowych w 90%. Wykazano, że indukowana przez C-1748 autofagia w komórkach raka okrężnicy jest zależna...
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Targeting of p53 and its homolog p73 by protoporphyrin IX
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p38 but not p53 is responsible for UVA-induced MCPIP1 expression
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The prognostic role of p53 and its correlation with CDK9 in urothelial carcinoma
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The p53-mediated cytotoxicity of photodynamic therapy of cancer: Recent advances
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Mathematical analysis of a generalised p53-Mdm2 protein gene expression model
PublicationWe propose the generalisation of the p53-Mdm2 protein gene expression model introduced by Monk (2003). We investigate the stability of a unique positive steady state and formulate conditions which guarantee the occurrence of the Hopf bifurcation. We show that oscillatory behaviour can be caused not only by time lag in protein transcription process, but also can be present in the model without time delay. Moreover, we investigate...
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cDNA sequencing improves the detection of P53 missense mutations in colorectal cancer
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Potential of Liquid Biopsy in Papillary Thyroid Carcinoma in Context of miRNA, BRAF and p53 Mutation
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The effects of p53 gene inactivation on mutant proteome expression in a human melanoma cell model
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p53 Gene status in relation to ex vivo chemosensitivity of non-small cell lung cancer
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Influence of G2 arrest on the cytotoxicity of DNA topoisomerase inhibitorstoward human carcinoma cells with different p53 status
PublicationRola bloku G2 w efekcie cytotoksycznym inhibitorów DNA topoizomeraz w stosunku do ludzkich komórek rakowych różniących się funkcjonalnością białka p53.
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Do not die, become senescent: a new type of cellular resistance induced by topoisomerase II inhibitors in tumor cells with functional p53
PublicationJednym z efektów wywoływanych przez związki przeciwnowotworowe w komórkach nowotworowych jest trwałe zahamowanie wzrostu, związane z pojawieniem się markerów procesu starzenia komórkowego. Proponuje się, że może to być nowy sposób na zahamowanie postępu choroby nowotworowej. W naszych badaniach wykazujemy, że zahamowanie wzrostu indukowane przez związki z grupy inhibitorów topoizomerazy II w komórkach raka płuc A549 jest związane...
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Dual inhibition of PI3K/Akt signaling and the DNA damage checkpoint in p53-deficient cells with strong survival signaling: implications for cancer therapy
PublicationOporność komórek nowotworowych na leki uszkadzjące DNA związana jest ściśle ze zdolnością do utrzymywania blok z fazie G2 cyklu komórkowego. Blok ten regulowany jest przez mechanizmy punktu kontrolnego G2/M oraz szlaki przeżycia komórkowego. W pracy badaliśmy rolę szlaku kinazy PI3K/Akt w funkcjonowaniu punktu kontrolnego cyklu komórkowego i wpływ na przeżycie komórek traktowanych lekiem przeciwnowotworowym - cisplatyną. Nasze...
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Triazoloacridone C-1305 abrogates the restriction checkpoint in cells lacking functional p53 and promotes their accumulation in the G2/M phase of the cell cycle
PublicationTriazoloakrydon C-1305, nowy inhibitor topoizomerazy II, wykazuje wysoką aktywość cytotoksyczną wobec komórek wielu typów nowotworów. Komórki mysie pozbawione genu PARP-1 wykazywały nadwrażliwość na działanie tego związku. W pracy testowaliśmy działanie związku wobec dwóch różnych komóek nowotworowych różniących się statusem p53: komórkami białaczki myelocytarnej HL-60 i raka sutka MCF-7. Wykazaliśmy, że inkubacja ze związkiem...
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Efficacy of high-dose corticosteroid-based treatment for chronic lymphocytic leukemia patients with p53 abnormalities in the era of B-cell receptor inhibitors
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The cellular response of human colon carcinoma HCT116 cells to 4-methyl-1-nitroacridine derivative C-1748 treatment depending on p53 status
PublicationWykazano, że pochodna C-1748 indukuje apoptozę w komórkach linii ludzkich raków jelita grubego HCT116 p53+/+ i p53-/- w sposób zależny od czasu inkubacji i stężenia związku. Wskazują na to: pojawienie się frakcji komórek sub-G1, charakterystyczne zmiany w morfologii jąder komórkowych, zmiany w strukturze błony plazmatycznej. Ponadto, pod wpływem badanego związku komórki HCT116 p53+/+ wykazują większą podatność do ulegania apoptozie...
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Imidazoacridinone derivative C-1311 (SymadexTM) induces apoptosis, mitotic catastrophe or senescence in human colon carcinoma HCT116 cells depending on p53 status
PublicationPrzeprowadziliśmy badania zmierzające do wyjaśnienia odpowiedzi komórek ludzkiego raka jelita grubego HCT116 traktowanych C-1311 w zależności od statusu białka p53. Wykazaliśmy, że pochodna imidazoakrydonu C-1311 w stężeniach biologicznie istotnych indukuje przejściowy blok w fazie G2M komórek HCT116 p53-/- oraz blok w fazie G1 i G2M komórek HCT116 p53+/+. W komórkach z niefunkcjonalnym białkiem p53 imidazoakrydon indukował katastrofę...
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Study of Bioreductive Anticancer Agent RH-1-Induced Signals Leading the Wild-Type p53-Bearing Lung Cancer A549 Cells to Apoptosis
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4-methyl-1-nitroacridine derivative C-1748 induces apoptosis, mitotic catastrophe or senescence in human colon carcinoma HCT116 cells depending on p53 status
PublicationPrzeprowadzone badania miały na celu określenie zdolności pochodnej 4-metylo-1-nitroakrydyny C-1748 do uruchomienia apoptozy, katastrofy mitotycznej lub procesu starzenia komórek ludzkiego raka okrężnicy HCT116 posiadających dziki gen p53 oraz podlinii nie posiadającej tego genu. Wykazano, że pochodna C-1748 indukuje apoptozę w komórkach obu linii HCT116 w sposób zależny od czasu inkubacji, przy czym komórki HCT116 p53+/+ wykazują...
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Increased cytotoxicity of an unusual DNA topoisomerase II inhibitor compound C-1305 toward HeLa cells with downregulated PARP-1 activity results from re-activation of the p53 pathway and modulation of mitotic checkpoints
PublicationOur previous studies have shown that murine fibroblast cells, in which PARP-1 gene was inactivated by gene disruption, are extremely sensitive to triazoloacridone compound C-1305, an inhibitor of DNA topoisomerase II with unusual properties. Here, we show that pharmacological inhibition of PARP-1 activity by its inhibitor compound NU1025, sensitizes human cervical carcinoma HeLa cells to compound C-1305 compared to treatment with...
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Rola bloku w fazach G2 i/lub M cyklu komórkowego w indukcji apoptozy w ko-mórkach nowotworowych z nieczynnym P53**2002, 116 s. 28 rys. bibliogr. 227 poz. maszyn. Rozprawa doktorska....Promotor: prof. dr hab. J. Konopa
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Andrzej Składanowski prof. dr hab. inż.
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Sequence variants of p21 gene of the MRL/MpJ mouse: a possible association with the deficit of p21 protein and regenerative phenotype.
PublicationThe MRL/MpJ mouse is known for its enhanced regeneration abilities that manifested themselves by scarless ear-hole wound closure. The deficit of p21 found in the MRL is associated with the regenerative capacity as the p21 gene knockout in a mouse strain unrelated to the MRL mouse results in an ear-hole closure effect, similar to that observed in the MRL mouse. Cdkn1a gene encodes p21 protein, a cyclin-dependent kinase inhibitor,...
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New 2-[(4-Amino-6-N-substituted-1,3,5-triazin-2-yl)methylthio]-N-(imidazolidin-2-ylidene)-4-chloro-5-methylbenzenesulfonamide Derivatives, Design, Synthesis and Anticancer Evaluation
PublicationIn the search for new compounds with antitumor activity, new potential anticancer agents were designed as molecular hybrids containing the structures of a triazine ring and a sulfonamide fragment. Applying the synthesis in solution, a base of new sulfonamide derivatives 20–162 was obtained by the reaction of the corresponding esters 11–19 with appropriate biguanide hydrochlorides. The structures of the compounds were confirmed...
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Wpływ imidazoakrydonu C-1311 na indukcję apoptozy, katastrofy mitotycznej lub starzenia komórek nowotworowych
PublicationPrezentowana praca stanowi kontynuację badań prowadzonych w Katedrze Technologii Leków i Biochemii, zmierzających do wyjaśnienia mechanizmu działania aktywnego przeciwnowotworowo imidazoakrydonu C-1311, znajdującego się obecnie w II fazie badań klinicznych prowadzonych na pacjentkach z rakiem piersi. Celem pracy było określenie końcowych efektów cytotoksycznego działania C-1311 w stosunku do wybranych rodzajów komórek nowotworowych...
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Anna Brillowska-Dąbrowska dr hab. inż.
PeopleAnna Brillowska-Dąbrowska, born in 1971 in Gdańsk, Poland, graduated in 1996 in Biotechnology from the Faculty of Chemistry, Gdańsk University of Technology (GUT). In 2001 she got her PhD, in 2013 became a DSc (habilitation). She was employed in 2004 as a researcher in Statens Serum Institut in Denmark. Currently she is an Associate Professor (adiunkt) in the Department of Molecular Biotechnology and Microbiology and Vice-dean...
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Genetic inactivation and chemical inhibition of PARP-1 lead to increased cytotoxicity to antitumor triazoloacridone C-1305
PublicationOkreśliliśmy aktywność cytotoksyczną związku C-1305 wobec komórek z obniżoną aktywnością PARP-1 w wyniku działania inhibitora tego enzymu związku NU1025. Dane wskazują, że w zależności od rodzaju inhibitora topoizomerazy II obniżenie aktywności PARP-1 przez związek NU1025 prowadzi do zwiększenia bądź obniżenia cytotoksyczności tych leków. Działanie NU1025 prowadzi również do re-aktywacji szlaku p53 w komórkach HeLa, czego jak dotąd...
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Glioblastoma, IDH-wildtype - Male, 38 - Tissue image [4260730038478681]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Oligodendroglioma, NOS - Male, 46 - Tissue image [4120730022884551]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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High grade serous carcinoma - Female, 34 - Tissue image [8310729566967371]
Open Research DataThis is the histopathological image of OVARY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Mullerian mixed tumor - Female, 60 - Tissue image [5280730021714761]
Open Research DataThis is the histopathological image of CORPUS UTERI tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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From DNA damage to G2 arrest: the many roles of topoisomerase II. W: Prog-ress in Cell Cycle Research. Ed. Meijer L., Jezequel A., Roberge M. London: Plenum Publ. Comp. Ltd**2003 vol. 5 chapt. 30 s. 295-300 Od uszkodzeń DNA do bloku w G2: wiele ról dla topoizomerazy II.
PublicationInhibitory DNA topoizomerazy II sa jednymi z najbardziej szeroko stosowanymi lekami przeciwnowotworowymi. Związki te indukuja pekniecia nici DNA i bloku progresji cyklu komorkowego w fazie G2. Jednak topoizomeraza II jest nie tylko celem molekularnym dla lekow przeciwnowtworowych ale enzym ten pelniwazna role w odpowiedzi komorkowej na dzialanie wielu lekow uszkadzajacych DNA. Topoizomeraza tworzy kompleksy molekularne z bialkami...
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Endometrioid adenocarcinoma, NOS - Female, 48 - Tissue image [1160630015017221]
Open Research DataThis is the histopathological image of CORPUS UTERI tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Neoplasm, malignant - Female, 59 - Tissue image [12090630030148061]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Clear cell adenocarcinoma, NOS - Female, 73 - Tissue image [9270729565553121]
Open Research DataThis is the histopathological image of CORPUS UTERI tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Glioma, malignant - Female, 53 - Tissue image [2220630014967641]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Glioma, malignant - Male, 59 - Tissue image [2210630020356151]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Glioma, malignant - Male, 58 - Tissue image [2170630005863811]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Glioma, malignant - Female, 45 - Tissue image [2210630020352951]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Squamous cell carcinoma, NOS - Female, 71 - Tissue image [3280730025625341]
Open Research DataThis is the histopathological image of CERVIX UTERI tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Chondroid chordoma - Female, 56 - Tissue image [6270730022337071]
Open Research DataThis is the histopathological image of NASOPHARYNX tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Astrocytoma, anaplastic, IDH-mutant - Male, 60 - Tissue image [5270730023431221]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Neoplasm, malignant - Female, 17 - Tissue image [5150730018697301]
Open Research DataThis is the histopathological image of BONES, JOINTS AND ARTICULAR CARTILAGE OF LIMBS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Neoplasm, malignant - Male, 57 - Tissue image [12020630021661741]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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High grade serous carcinoma - Female, 67 - Tissue image [10040729541212431]
Open Research DataThis is the histopathological image of OVARY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Glioma, NOS - Unknown, 31 - Tissue image [3280730025629971]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.