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Biomedical Centre Faculty of Medicine... 1 Department of Hepatogastroenterology ... 1 Department of Internal Medicine 3rd F... 1 Department of Surgery 1st Faculty of ... 1 Department of Surgery Weiden Clinic W... 1 Institute of Biology and Medical Gene... 1 Institute of Experimental Medicine Cz... 1 Institute of Physiology 1st Faculty o... 1 Laboratory for Non Coding DNA Ruđer B... 1
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Biomedical Centre Faculty of Medicine... 1 Department of Hepatogastroenterology ... 1 Department of Internal Medicine 3rd F... 1 Department of Surgery 1st Faculty of ... 1 Department of Surgery Weiden Clinic W... 1 Institute of Biology and Medical Gene... 1 Institute of Experimental Medicine Cz... 1 Institute of Physiology 1st Faculty o... 1 Laboratory for Non Coding DNA Ruđer B... 1
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- Cervena, Klara
- Siskova, Anna
- Jungwirth, Jiri
- Volarić, Marin
- Král, Jan, 1985-
- Kohout, Pavel
- Levy, Miroslav
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Vymetalkova, Veronika
Autor Vymetalkova, Veronika Institute of Experimental Medicine, Czech Academy of Sciences, Prague, 142 00, Czech Republic Institute of Biology and Medical Genetics, 1st Medical Faculty, Charles University, Prague, 128 00, Czech Republic Biomedical Centre, Faculty of Medicine in Pilsen, Charles University in Prague, Pilsen, 323 00, Czech Republic
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PubMed
37601809
DOI
10.2147/ijgm.s420127
Knihovny.cz E-zdroje
INTRODUCTION: The development of colorectal cancer (CRC) is a multistep process accompanied by the accumulation of mutations that start from specific precancerous lesion - colorectal adenomas (CA). CRC incidence and mortality can be reduced by the early identification of these neoplasm. Colonoscopy is the most widely used screening method for CRC identification. Nowadays, clinical research interest is shifting to the use of liquid biopsy that may help with the early diagnosis of CA and CRC. In our previous study, we identified long non-coding RNA MALAT1 gene amplification associated with the development of CA. METHODS: This study aimed to describe the potential of MALAT1 expression levels in the adenoma tissue of patients used in the previous study by real-time qPCR. Furthermore, we analysed the plasma samples of an independent group of patients with CA (n=97), CRC (n=101), and cancer-free individuals (CFI, n=48). RESULTS: There was no difference in the MALAT1 expression level between CA patients with or without MALAT1 amplification. However, the plasma MALAT1 expression levels were significantly upregulated in patients with CRC and CA compared to CFI (for both p<0.001). Moreover, a correlation between MALAT1 expression and histological types of adenomas was identified- high-CRC-risk adenomas also displayed the highest MALAT1 expression levels. Furthermore, in CRC patients, MALAT1 levels were associated with a response to therapy. CONCLUSION: MALAT1 expression levels could serve as a promising circulating biomarker for early CA and CRC diagnosis, and even as a predictor of therapy response in CRC patients.
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