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Wyświetlanie 1-8 z 8
Tytuł:
Impact of APEX Ile64val Gene Polymorphisms of DNA Repair Ber System on Modulation of the Risk of Colorectal Cancer in the Polish Population
Autorzy:
Kabziński, Jacek
Majsterek, Ireneusz
Mik, Michał
Dziki, Adam
Dziki, Łukasz
Maciejczak, Lucjan
Powiązania:
https://bibliotekanauki.pl/articles/1395566.pdf
Data publikacji:
2015-03-01
Wydawca:
Index Copernicus International
Tematy:
colorectal cancer
polymorphisms
APEX
DNA repair
Opis:
Colorectal cancer (CRC) is one of the deadliest cancers which lie in the incidence of morbidity in second place. Intensive research is to determine and confirm the genetic basis of this disease, which is believed may have a direct relationship with the reduced efficiency of DNA repair systems. The aim of this study was to determine the effect of APEX gene polymorphism Ile64Val on increasing the risk of colorectal cancer in the Polish population. Material and methods. The blood samples collected from 150 patients diagnosed with colon cancer was used. The control group consisted of 150 healthy subjects. Genotyping was performed by TaqMan method. Results. The results indicate that genotype Ile Val is associated with an increased risk of colorectal cancer (OR 2.069; 95% CI 1,205-3,552; p = 0.008). Conclusions. Based on these results, we conclude that the APEX gene polymorphism Ile64Val may be associated with an increased risk of colorectal cancer.
Źródło:
Polish Journal of Surgery; 2015, 87, 3; 121-123
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sirt3 regulates the level of mitochondrial DNA repair activity through deacetylation of NEIL1, NEIL2, OGG1, MUTYH, APE1 and LIG3 in colorectal cancer
Autorzy:
Kabziński, Jacek
Walczak, Anna
Mik, Michał
Majsterek, Ireneusz
Powiązania:
https://bibliotekanauki.pl/articles/1391859.pdf
Data publikacji:
2020
Wydawca:
Index Copernicus International
Tematy:
cancer
colorectal cancer
DNA damage/repair
genetics
proteins
Opis:
Colorectal cancer (CRC) is one of the most common malignant tumors. One of the factors increasing the risk of its occurrence may be the reduced efficiency of repairing DNA damage, both nuclear and mitochondrial. The main mechanism for repairing oxidative damage is the BER system (in mitochondria mtBER), whose key proteins NEIL1, NEIL2, OGG1, MUTYH, APE1 and LIG3 obtain full efficiency only at the appropriate level of acetylation. Sirtuin 3 is a key protein for mitochondrial homeostasis, regulating a number of metabolic processes related mainly to the control of the level of reactive oxygen species. Because Sirt3 possesses acetylase activity, it can modulate the level of activity of mtBER proteins by their deacetylation. The conducted study showed that the tested proteins NEIL1, NEIL2, OGG1, MUTYH, APE1 and LIG3 are the substrate for the enzymatic deacetylation activity of Sirt3, which may lead to modulation of the risk of CRC, and in cancer cells may be a potential therapeutic target enhancing the action of cytostatic drugs.
Źródło:
Polish Journal of Surgery; 2020, 92, 1; 1-4
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Association of Polymorphism of Lys589glu Exo1 Gene with the Risk of Colorectal Cancer in the Polish Population
Autorzy:
Kabziński, Jacek
Przybylowska, Karolina
Mik, Michał
Sygut, Andrzej
Dziki, Łukasz
Dziki, Adam
Majsterek, Ireneusz
Powiązania:
https://bibliotekanauki.pl/articles/1395790.pdf
Data publikacji:
2014-08-01
Wydawca:
Index Copernicus International
Tematy:
colorectal cancer
polymorphisms
EXO1
DNA repair
Opis:
The incidence of colorectal cancer (CRC) is increasing from year to year. Despite intensive research CRC etiology remains unknown. Studies suggest that at the basis of the process of carcinogenesis can lie reduced efficiency of DNA repair mechanisms, often caused by polymorphisms in DNA repair genes. The aim of the study was to determine the relationship between gene polymorphism Lys589Glu of EXO1 gene and modulation of the risk of colorectal cancer in the Polish population. Determination of the molecular basis of carcinogenesis process and predicting increased risk will allow qualifying patients to increased risk group and including them in preventive program. Material and methods. The material used in study was blood collected from 130 patients diagnosed with colorectal cancer. The control group consisted of 135 healthy people. Genotyping was performed by TaqMan method. Results. The results obtained indicate that the genotype Lys/Glu is associated with an increased risk of colorectal cancer (OR 1.811, 95% Cl 1.031-3.181, p = 0.038). Conclusion. On the basis of these results, we conclude that Exo1 gene polymorphism Lys589Glu may be associated with an increased risk of colorectal cancer.
Źródło:
Polish Journal of Surgery; 2014, 86, 8; 370-373
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Role of the XPF Gene Polymorphism (Xrcc4) Ser835ser in the Risk of Malignant Transformation of Cells in the Colorectal Cancer
Autorzy:
Kabziński, Jacek
Majsterek, Ireneusz
Dziki, Adam
Mik, Michał
Powiązania:
https://bibliotekanauki.pl/articles/1395528.pdf
Data publikacji:
2015-02-01
Wydawca:
Index Copernicus International
Tematy:
colorectal cancer
XRCC4
XPF
DNA repair
Opis:
Participation of DNA repair systems in the pathogenesis of cancer has been a suspected phenomenon for a long time. Decreased efficiency in DNA repair translates to their ability to fix and consequently leads to mutations and the process of carcinogenesis. Linking individual polymorphisms of DNA repair systems with an increased risk of colorectal cancer will allow the classification of patients to high-risk groups and their placement under preventive program. The aim of the study was to determine the effect of XPF gene polymorphism Ser835Ser on increasing the risk of colorectal cancer in the Polish population. Material and methods. as the material blood collected from 146 patients diagnosed with colon cancer was used. The control group consisted of 149 healthy subjects. Genotyping was performed by Taq- Man method. Results. The results indicate that genotype TCC/TCT is associated with an decreased risk of colorectal cancer (OR 0.574; CI 95% 0.335-0.984; p=0.043). Conclusions. Based on these results, we conclude that the XPF gene polymorphism Ser835Ser may be associated with a decreased risk of colorectal cancer
Źródło:
Polish Journal of Surgery; 2015, 87, 2; 83-85
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lack of Association Between the 135G/C Rad51 Gene Polymorphism and the Risk of Colorectal Cancer Among Polish Population
Autorzy:
Mucha, Bartosz
Przybyłowska-Sygut, Karolina
Dziki, Łukasz
Dziki, Adam
Sygut, Andrzej
Majsterek, Ireneusz
Powiązania:
https://bibliotekanauki.pl/articles/1396683.pdf
Data publikacji:
2012-07-01
Wydawca:
Index Copernicus International
Tematy:
polymorphism
135G/C RAD51 gene
colorectal cancer
Opis:
One of the major causes of carcinogenesis is loss of genome stability. RAD51 in process of homologous recombination (HR) played crucial role in maintenance integrity of genome through initiate of DNA double strand breaks repair. Presence of single nucleotide polymorphism (SNP) in RAD51 gene could change the capacity of DNA repair and altered the response to damaging agents. Research on potential impact of genetic variability on development and progression CRC may contribute to setting new genetic markers or/and determined individual susceptibility to CRC.The aim of the study. This study was designed to evaluate the effect of 135 G/C (rs1801320) RAD51 polymorphism located in the 5' untraslated region on the risk and progression of CRC.Material and methods. The subjects consisted of histologically confirmed colorectal cancer (n = 200) and controls (n = 200) with lack of previous history of cancer. The distribution of genotypes was determined by restriction fragment length polymorphism PCR (RFLP - PCR). Statistical analysis was based on multivariate regression model.Results and conclusion. Our study reveal no significance association of 135 G/C RAD51 polymorphism with occurrence and progression of colorectal cancer.
Źródło:
Polish Journal of Surgery; 2012, 84, 7; 358-362
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An association of the MCP-1 and CCR2 single nucleotide polymorphisms with colorectal cancer prevalence
Autorzy:
Walczak, Anna
Przybyłowska-Sygut, Karolina
Sygut, Andrzej
Cieślak, Adrianna
Mik, Michał
Dziki, Łukasz
Dziki, Adam
Majsterek, Ireneusz
Powiązania:
https://bibliotekanauki.pl/articles/1393280.pdf
Data publikacji:
2017
Wydawca:
Index Copernicus International
Tematy:
colorectal cancer
MCP-1
CCR-2
single nucleotide polymorphisms
Opis:
The aim of the study: We evaluated the connection between the presence of the -2518 A/G MCP-1 as well as 190 G/A CCR2 polymorphic variants and colorectal cancer (CRC) occurrence. Material and methods: Study group consisted of subjects with different stages of CRC as well as healthy controls. Genotypes were determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Results: W observed an association between the colorectal cancer and the GG genotype of the -2518 A/G MCP-1 single nucleotide polymorphism. No statistically significant correlation was found between CRC and the 190 G/A CCR2 polymorphism. Conclusion: The results of this study support the hypothesis that polymorphism in the MCP-1 gene may contribute to the etiology of colorectal cancer.
Źródło:
Polish Journal of Surgery; 2017, 89, 5; 1-5
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of the Ser326Cys polymorphism of the OGG1 gene on the level of oxidative DNA damage in patients with colorectal cancer
Autorzy:
Kabzinski, Jacek
Walczak, Anna
Dziki, Adam
Mik, Michał
Majsterek, Ireneusz
Powiązania:
https://bibliotekanauki.pl/articles/1392877.pdf
Data publikacji:
2018
Wydawca:
Index Copernicus International
Tematy:
colorectal cancer
OGG1
8-oxoguanine
DNA repair
oxidative damage
Opis:
As a result of reactive oxygen species operation, cell damage occurs in both cellular organelles and molecules, including DNA. Oxidative damage within the genetic material can lead to accumulation of mutations and consequently to cancer transformation. OGG1 glycosylase, a component of the Base Excision Repair (BER) system, is one of the enzymes that prevents excessive accumulation of 8-oxoguanine (8-oxG), the most common compound formed by oxidative DNA damage. In case of structural changes of OGG1 resulting from polymorphic variants, we can observe a significant increase in the concentration of 8-oxG. Linking individual polymorphisms to DNA repair systems with increased risk of colorectal cancer will allow patients to be classified as high risk and included in a prophylactic program. The aim of the study was to determine the level of oxidative DNA damage and to analyze the distribution of Ser326Cys polymorphism of the OGG1 gene in a group of patients with colorectal cancer and in a control group in the Polish population. Material and methodology. DNA was isolated from the blood of 174 patients with colorectal cancer. The control group consisted of 176 healthy individuals. The level of oxidative damage was determined by analyzing the amount of 8-oxguanine using the HT 8-oxo-dG ELISA II Kit. Genotyping was performed via the TaqMan method. Results. The obtained results indicate that Ser326Cys polymorphism of the OGG1 gene increases the risk of RJG and is associated with significantly increased levels of 8-oxoguanine. Conclusions. Based on the results obtained, we conclude that Ser326Cys polymorphism of the OGG1 gene may modulate the risk of colorectal cancer by increasing the level of oxidative DNA damage.
Źródło:
Polish Journal of Surgery; 2018, 90, 2; 13-15
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Expression of the PLS3 Gene in Circulating Cells in Patients with Colorectal Cancer
Autorzy:
Kujawski, Ryszard
Przybyłowska-Sygut, Karolina
Mik, Michał
Lewandowski, Miłosz
Trzciński, Radzisław
Berut, Maciej
Dziki, Łukasz
Majsterek, Ireneusz
Dziki, Adam
Powiązania:
https://bibliotekanauki.pl/articles/1395524.pdf
Data publikacji:
2015-02-01
Wydawca:
Index Copernicus International
Tematy:
Plastin-3
PL S3
circulating tumor cells
CTC
colorectal cancer
Opis:
Circulating tumor cells (CTC) are cells in circulating blood that have the antigen and gene features of tumor cells of a specific type. Since they can be potentially used in diagnostics and monitoring of treatment of many tumors, they have been attracting attention of researchers worldwide. Plastin-3 (PL S3) is one of such markers of CTC. The aim of the study was to assess expression of PL S3 in CTC in patients with colorectal cancer, to conduct a statistical analysis and to demonstrate a link between expression of PL S3 and progress of the disease, level of CEA and Ca19-9 markers, gender and age of the patients. Material and methods. A group of 85 patients of the Department of General and Colorectal Surgery of the Medical University in Łódź were enrolled in this study. Circulating tumor cells were isolated from whole blood of patients with colorectal cancer and an analysis of PL S3 gene expression in CTC was conducted. The next step was to conduct a statistical analysis and to demonstrate a link between expression of PL S3 in patients’ CTC and progress of the disease, level of CEA and Ca19-9 markers, gender and age of the patients. Results. PL S3 is a marker which can be potentially used in prediction and monitoring of colorectal cancer. A link between expression of PL S3 in CTC of patients with colorectal cancer and metastasis to lymph nodes has been demonstrated. It may be of key importance how PL S3 could impact the qualification to supplementary cancer treatment in patients with stage II colorectal cancer. A link between expression of PL S3 gene in CTC and gender requires further in-depth studies. It is beyond doubt that PL S3 must be further investigated to determine its role in diagnostics, prediction, treatment and monitoring of treatment of colorectal cancer
Źródło:
Polish Journal of Surgery; 2015, 87, 2; 59-64
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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