lncRNAs in Non-Malignant Tissue Have Prognostic Value in Colorectal Cancer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11110%2F18%3A10382390" target="_blank" >RIV/00216208:11110/18:10382390 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11140/18:10382390

Výsledek na webu

<a href="https://doi.org/10.3390/ijms19092672" target="_blank" >https://doi.org/10.3390/ijms19092672</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ijms19092672" target="_blank" >10.3390/ijms19092672</a>

Jazyk výsledku

angličtina

Název v původním jazyce

lncRNAs in Non-Malignant Tissue Have Prognostic Value in Colorectal Cancer

Popis výsledku v původním jazyce

Although colorectal cancer (CRC) is the third most frequent cause of cancer related death in Europe, clinically relevant biomarkers for therapy guidance and prognosis are insufficiently reliable. Long non-coding RNAs (lncRNAs) are RNAs over 200 nucleotides long that are not translated into proteins but can influence biological processes. There is emerging evidence for their involvement in solid cancer as oncogenes, tumour suppressors or regulators of cell proliferation and metastasis development. The goal of this study was to evaluate the prognostic effect of selected lncRNAs in a retrospective study on CRC patients from the Czech Republic. We used a quantitative PCR approach to measure the expression in paired non-malignant and tumour tissue samples of CRC patients of nine lncRNAs previously shown to be involved in cancer progression- ANRIL , CCAT1 , GAS5 , linc-ROR , MALAT1 , MIR155HG , PCAT1 , SPRY4-IT1 and TUG1 . Associations between expression and expression ratios and clinical characteristics and survival were assessed by using univariable Cox proportional hazards models, Kaplan-Meier estimations with the Gehan-Wilcoxon test, the Mann-Whitney U test, the Kruskal-Wallis test and Spearman&apos;s correlations. A comparison of expression in tumour tissue (TT) and non-malignant mucosa tissue (MT) showed significant upregulation of CCAT1 and linc-ROR in TT ( p &lt; 0.001 and p = 0.001, respectively) and downregulation of ANRIL , MIR155HG and MALAT1 ( p = 0.001, p = 0.010, p = 0.001, respectively). Linc-ROR was significantly associated with the presence of synchronous metastases ( p = 0.033). For individual tissue types, lower MIR155HG expression in TT was correlated with both shorter overall survival ( p = 0.008) and shorter disease-free survival ( p = 0.040). In MT, expression ratios of CCAT1 / ANRIL and CCAT1 / MIR155HG were associated with overall survival ( p = 0.005 and p = 0.006, respectively). Our results revealed that changes in expression of lncRNAs between MT and TT hold potential to be used as prognostic biomarkers in CRC patients. Moreover, the ratios of CCAT1 to ANRIL and MIR155HG in MT also exhibit potential for prognosis assessment without tumour sampling. Our results also indicate that cancer progression is associated with detrimental system-wide changes in patient tissue, which might govern patient survival even after successful elimination of tumour or cancerous cells.

Název v anglickém jazyce

lncRNAs in Non-Malignant Tissue Have Prognostic Value in Colorectal Cancer

Popis výsledku anglicky

Although colorectal cancer (CRC) is the third most frequent cause of cancer related death in Europe, clinically relevant biomarkers for therapy guidance and prognosis are insufficiently reliable. Long non-coding RNAs (lncRNAs) are RNAs over 200 nucleotides long that are not translated into proteins but can influence biological processes. There is emerging evidence for their involvement in solid cancer as oncogenes, tumour suppressors or regulators of cell proliferation and metastasis development. The goal of this study was to evaluate the prognostic effect of selected lncRNAs in a retrospective study on CRC patients from the Czech Republic. We used a quantitative PCR approach to measure the expression in paired non-malignant and tumour tissue samples of CRC patients of nine lncRNAs previously shown to be involved in cancer progression- ANRIL , CCAT1 , GAS5 , linc-ROR , MALAT1 , MIR155HG , PCAT1 , SPRY4-IT1 and TUG1 . Associations between expression and expression ratios and clinical characteristics and survival were assessed by using univariable Cox proportional hazards models, Kaplan-Meier estimations with the Gehan-Wilcoxon test, the Mann-Whitney U test, the Kruskal-Wallis test and Spearman&apos;s correlations. A comparison of expression in tumour tissue (TT) and non-malignant mucosa tissue (MT) showed significant upregulation of CCAT1 and linc-ROR in TT ( p &lt; 0.001 and p = 0.001, respectively) and downregulation of ANRIL , MIR155HG and MALAT1 ( p = 0.001, p = 0.010, p = 0.001, respectively). Linc-ROR was significantly associated with the presence of synchronous metastases ( p = 0.033). For individual tissue types, lower MIR155HG expression in TT was correlated with both shorter overall survival ( p = 0.008) and shorter disease-free survival ( p = 0.040). In MT, expression ratios of CCAT1 / ANRIL and CCAT1 / MIR155HG were associated with overall survival ( p = 0.005 and p = 0.006, respectively). Our results revealed that changes in expression of lncRNAs between MT and TT hold potential to be used as prognostic biomarkers in CRC patients. Moreover, the ratios of CCAT1 to ANRIL and MIR155HG in MT also exhibit potential for prognosis assessment without tumour sampling. Our results also indicate that cancer progression is associated with detrimental system-wide changes in patient tissue, which might govern patient survival even after successful elimination of tumour or cancerous cells.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30204 - Oncology

Projekt

<a href="/cs/project/LO1503" target="_blank" >LO1503: BIOMEDIC</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Molecular Sciences

ISSN

1422-0067

e-ISSN

—

Svazek periodika

19

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

16

Strana od-do

—

Kód UT WoS článku

000449988100208

EID výsledku v databázi Scopus

2-s2.0-85053081079