National Repository of Grey Literature 11 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
The use of minimal residual disease in the course of treatment and after allogeneic bone marrow transplantation in children with acute lymphoblastic leukemia
Šrámková, Lucie ; Trka, Jan (advisor) ; Haškovec, Cedrick (referee) ; Pospíšilová, Dagmar (referee) ; Kozák, Tomáš (referee)
The use of minimal residual disease in the course of treatment and after allogeneic bone marrow transplantation in children with acute lymphoblastic leukemia Powered by TCPDF (www.tcpdf.org)
Quantitative detection of the expression of gene WT1: prognostic significance and monitoring of residual disease in child hematological diseases
Kalinová, Markéta ; Trka, Jan (advisor) ; Zemanová, Zuzana (referee) ; Haškovec, Cedrick (referee) ; Mareš, Jaroslav (referee)
Quantitative detection of the expression of gene WT1: prognostic significance and monitoring of residual disease in child hematological diseases Powered by TCPDF (www.tcpdf.org)
Molecular mechanisms of apoptosis induction in tumor cells
Koc, Michal ; Kovář, Jan (advisor) ; Červinka, Miroslav (referee) ; Haškovec, Cedrick (referee)
V. Závěr Tato práce se zaměřila na studium procesů uplatňujících se v indukci apoptosy různými faktory. V našem případě jsme indukovali buněčnou smrt u nádorových buněk deprivací železa, klinicky používanými taxany (paclitaxel, docetaxel) a nově syntetisovanými fotosensitivními látkami. Z presentovaných publikací jsme získali tyto závěry. (1) Studie týkající se indukce apoptosy deprivací železa prokázaly účast odlišných signálních drah vedoucí k indukci apoptosy u myších a lidských nádorových buněk. V obou případech byla použita B lymfomová buněčná linie citlivá k deprivaci železa. U myších buněk jsme popsali významnou část apoptotické signální dráhy u 38C13 buněk sensitivních k indukci apoptosy deprivací železa. Deprivace železa u těchto buněk vede k translokaci proapoptotického proteinu Bax z cytosolu na mitochondrie, která je následována zhroucením mitochondriálního membránového potenciálu v důsledku porušení integrity vnější mitochondriální membrány, uvolněním cytochromu c z mitochondrií, aktivací kaspasy 9 a následnou aktivací kaspasy 3. U lidských buněk jsme taktéž zaznamenali indukci apoptosy deprivací železa, avšak charakterem mechanismu odlišnou od apoptosy popsané u myších 38C13 buněk. V případě lidských Raji buněk sensitivních k indukci apoptosy deprivací železa docházelo pouze k aktivaci kaspasy...
Molecular mechanisms of apoptosis induction in tumor cells
Koc, Michal ; Kovář, Jan (advisor) ; Červinka, Miroslav (referee) ; Haškovec, Cedrick (referee)
V. Závěr Tato práce se zaměřila na studium procesů uplatňujících se v indukci apoptosy různými faktory. V našem případě jsme indukovali buněčnou smrt u nádorových buněk deprivací železa, klinicky používanými taxany (paclitaxel, docetaxel) a nově syntetisovanými fotosensitivními látkami. Z presentovaných publikací jsme získali tyto závěry. (1) Studie týkající se indukce apoptosy deprivací železa prokázaly účast odlišných signálních drah vedoucí k indukci apoptosy u myších a lidských nádorových buněk. V obou případech byla použita B lymfomová buněčná linie citlivá k deprivaci železa. U myších buněk jsme popsali významnou část apoptotické signální dráhy u 38C13 buněk sensitivních k indukci apoptosy deprivací železa. Deprivace železa u těchto buněk vede k translokaci proapoptotického proteinu Bax z cytosolu na mitochondrie, která je následována zhroucením mitochondriálního membránového potenciálu v důsledku porušení integrity vnější mitochondriální membrány, uvolněním cytochromu c z mitochondrií, aktivací kaspasy 9 a následnou aktivací kaspasy 3. U lidských buněk jsme taktéž zaznamenali indukci apoptosy deprivací železa, avšak charakterem mechanismu odlišnou od apoptosy popsané u myších 38C13 buněk. V případě lidských Raji buněk sensitivních k indukci apoptosy deprivací železa docházelo pouze k aktivaci kaspasy...
DNA methylation changes in patients with acute myeloid leukemia
Hájková, Hana ; Haškovec, Cedrick (advisor) ; Hejnar, Jiří (referee) ; Reiniš, Milan (referee)
DNA methylation is a well-established epigenetic mechanism regulating gene expression. It has essential functions in cells under physiological as well as pathological conditions. In acute myeloid leukemia (AML), aberrant DNA methylation has been confirmed in the pathogenesis and progression of the disease. Changes in DNA methylation of promoters, or other regions, are studied primarily with respect to pathways that are involved in tumor transformation and DNA methylation impact on prognosis. Clinical importance of DNA methylation has been confirmed by a number of recent publications. According to the Cancer Genome Atlas (TCGA) Research Network, mutations of genes involved in DNA methylation are found in 44% of AML patients at diagnosis. However, the impact of these mutations on specific DNA methylation and gene expression remains controversial. We examined 79 AML patients at diagnosis for DNA methylation of 12 selected genes (CDKN2B, CALCA, CDH1, ESR1, SOCS1, MYOD1, DAPK1, TIMP3, ICAM1, TERT, CTNNA1, EGR1) - some of them proved as tumor suppressor genes and 24 HOX genes, and in parallel for mutations in DNMT3A. We observed lower levels of DNA methylation (P<0.0001) as well as lower numbers of concurrently hypermethylated genes (P<0.0001) in patients with DNMT3A mutations. Our study of the impact of...
Study of translation initiation factors eIF3 and eIF4E in leukemic cell lines
Mrvová, Silvia ; Mašek, Tomáš (advisor) ; Haškovec, Cedrick (referee)
eIF3 and eIF4E are very important eukaryotic translation initiation factors. eIF3 is practically involved in every step of translation initiation, eIF4E is important mainly for its ability to bind the cap. Mammalian factor eIF3 consists of thirteen subunits, many subunits have a function apart from translation, such as in apoptosis and mitosis. It was proved that upregulated or downregulated expression of some subunits as well as upregulated expression of eIF4E is linked with different types of tumours and malignancies in human. In the first part of my work, I was examining the amount of transcripts of subunits eIF3a, b, d, e, f, g, h, i and j in cell lines which are used for study of acute lymphoblastic leukaemia. I tried to find if there is a difference in the amount of trancripts between lines or between lines and control line in these subunits. According to experiments and statistical analysis, I proved increased amount of mRNA for eIF3b subunit in control cell line NC-NC in comparison with other used leukaemic cell line except from line NALM6. Other differences were not statistically important. In the second part of my work, I was analysing 3' UTR region of transcripts of eIF4E1 and utilising of polyadenylation signals in this trancript. I used the leukeamic cell lines again. The experiments clearly...
Quantitative detection of the expression of gene WT1: prognostic significance and monitoring of residual disease in child hematological diseases
Kalinová, Markéta ; Trka, Jan (advisor) ; Zemanová, Zuzana (referee) ; Haškovec, Cedrick (referee) ; Mareš, Jaroslav (referee)
Quantitative detection of the expression of gene WT1: prognostic significance and monitoring of residual disease in child hematological diseases Powered by TCPDF (www.tcpdf.org)
Etiology of childhood acute leukemia
Burjanivová, Tatiana ; Zuna, Jan (advisor) ; Mihál, Vladimír (referee) ; Haškovec, Cedrick (referee)
Childhood acute leukaemias are a heterogeneous group of malignant diseases. Based on cell origin, clinical manifestations, and molecular/chromosomal changes, we distinguish two main subtypes: acute myeloid leukaemia and acute lymphoblastic leukaemia. Acute lymphoblastic leukaemia (ALL) is the most frequent form of childhood leukaemia. Acute myeloid leukaemia (AML) is predominantly found in adults, being rarer in childhood. In the Czech Republic, the ALL is in childhood diagnosed approximately five times more often compared to AML. Despite the intensive research, aetiology of leukaemia has not been entirely clarified. So far, we only have knowledge of certain risk factors (ionising radiation, some chemicals and viruses) but in the vast majority of cases the aetiopathogenesis has not yet been made clear. Some of the answers may be provided by studies dealing with the presence of (pre)-leukaemic cells in a material archived prior to the clinical onset of the disease. Such are for example the so-called Guthrie cards, the dried blood samples collected immediately after birth and used in screening of the newborns for metabolic disorders. The better availability of material collected before the diagnosis of a secondary leukaemia (originally meant for the follow-up of the primary malignancy) might help us in better...

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9 Haškovec, Cedrik
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