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1.
Dokl Biochem Biophys ; 505(1): 137-140, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36038677

RESUMO

A lot of long non-coding RNAs (lncRNAs) are expressed in human cells in a number of transcripts of different lengths and composition of exons. In case of cancer-associated lncRNAs, an actual task is to determine their specific isoforms, since each transcript can perform its own function in carcinogenesis and might have a unique expression profile in various types of tumors. For the first time, we analyzed the expression of CASC8 lncRNA in human pancreatic ductal adenocarcinoma cell lines and found an abundant isoform that was previously considered as the minor one in this type of cancer. We also revealed extremely high expression levels of all CASC8 transcripts in MIA PaCa-2 cells and, conversely, the lack of this lncRNA in PANC-1. This allows to use them as convenient models for further in vitro studies.


Assuntos
Carcinoma Ductal Pancreático , Neoplasias Pancreáticas , RNA Longo não Codificante/genética , Carcinoma Ductal Pancreático/genética , Carcinoma Ductal Pancreático/patologia , Linhagem Celular , Humanos , Neoplasias Pancreáticas/patologia , RNA Longo não Codificante/metabolismo , Neoplasias Pancreáticas
3.
Dokl Biochem Biophys ; 493(1): 181-184, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32894460

RESUMO

Long noncoding RNAs (lncRNAs) are promising biomarkers and potential targets for liver cancer therapy. Stable hepatocyte lines are used in vitro to investigate functions of lncRNAs which amount in cell fluctuates during carcinogenesis. For the first time we compared gene expression of known lncRNAs in human conditional normal liver cells HepaRG and cancer cell lines Huh7 and HepG2. We showed that relative amounts of these lncRNAs in HepaRG are close to analogous variables measured for liver samples from healthy donors. Obtained data demonstrate exclusive peculiarities of HepaRG and confirm its reasonable application as a model of normal human hepatocytes for studying functions of lncRNAs.


Assuntos
Carcinoma Hepatocelular/metabolismo , Hepatócitos/metabolismo , Neoplasias Hepáticas/metabolismo , Fígado/metabolismo , RNA Longo não Codificante/biossíntese , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/patologia , Células Cultivadas , Células Hep G2 , Hepatócitos/citologia , Humanos , Fígado/citologia , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/patologia , RNA Longo não Codificante/genética , RNA Longo não Codificante/metabolismo , RNA Mensageiro/genética , RNA Mensageiro/metabolismo
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