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

Result code in 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>

Alternative codes found

RIV/00216208:11140/18:10382390

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30204 - Oncology

Project

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

Continuities

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

Publication year

2018

Confidentiality

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

Name of the periodical

International Journal of Molecular Sciences

ISSN

1422-0067

e-ISSN

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Volume of the periodical

19

Issue of the periodical within the volume

9

Country of publishing house

CH - SWITZERLAND

Number of pages

16

Pages from-to

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UT code for WoS article

000449988100208

EID of the result in the Scopus database

2-s2.0-85053081079