J 2014

HOTAIR long non-coding RNA is a negative prognostic factor not only in primary tumors, but also in the blood of colorectal cancer patients

SVOBODA, Miroslav; Jana SLYSKOVA; Michaela SCHNEIDEROVA; Peter MAKOVICKY; Ludovit BIELIK et. al.

Basic information

Original name

HOTAIR long non-coding RNA is a negative prognostic factor not only in primary tumors, but also in the blood of colorectal cancer patients

Authors

SVOBODA, Miroslav (203 Czech Republic); Jana SLYSKOVA (203 Czech Republic); Michaela SCHNEIDEROVA (203 Czech Republic); Peter MAKOVICKY (203 Czech Republic); Ludovit BIELIK (203 Czech Republic); Miroslav LEVY (203 Czech Republic); Ludmila LIPSKA (203 Czech Republic); Beáta HEMMELOVÁ (203 Czech Republic, guarantor); Zdeněk KALA (203 Czech Republic, belonging to the institution); Markéta PROTIVÁNKOVÁ (203 Czech Republic, belonging to the institution); Ondrej VYCITAL (203 Czech Republic); Vaclav LISKA (203 Czech Republic); Lucie SCHWARZOVA (203 Czech Republic); Ludmila VODICKOVA (203 Czech Republic) and Pavel VODICKA (203 Czech Republic)

Edition

Carcinogenesis, Oxford, Oxford University Press, 2014, 0143-3334

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

30200 3.2 Clinical medicine

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

is not subject to a state or trade secret

Impact factor

Impact factor: 5.334

RIV identification code

RIV/00216224:14110/14:00075266

Organization unit

Faculty of Medicine

UT WoS

000339816100010

EID Scopus

2-s2.0-84904015674

Keywords in English

CARCINOMA PROGRESSION; GENOME

Tags

Tags

International impact, Reviewed
Changed: 6/2/2015 18:17, Ing. Mgr. Věra Pospíšilíková

Abstract

V originále

Colorectal cancer (CRC) is one of the main causes of death of neoplasia. Demand for predictive and prognostic markers to reverse this trend is increasing. Long non-coding RNA HOTAIR (Homeobox Transcript Antisense Intergenic RNA) overexpression in tumors was previously associated with poor prognosis and higher mortality in different carcinomas. We analyzed HOTAIR expression levels in tumor and blood of incident sporadic CRC patients in relation to their overall survival with the aim to evaluate surrogate prognostic marker for CRC. Tissue donor group consisted of 73 CRC patients sampled for tumor and normal tissue. Blood donor group was represented by 84 CRC patients compared with 40 healthy controls. Patients were characterized for tumor-node-metastasis stage, tumor grade, microsatellite instability and tumor penetration by stromal cells. HOTAIR levels were assessed by real-time quantitative PCR. CRC patients had higher HOTAIR expression in blood than healthy controls (P = 0.0001), whereas there was no difference in HOTAIR levels between tumor and adjacent mucosa of CRC patients. HOTAIR levels positively correlated between blood and tumor (R = 0.43, P = 0.03). High HOTAIR levels in tumors were associated with higher mortality of patients [Cox’s proportional hazard, hazard ratio = 4.4, 95% confidence interval: 1.0–19.2, P = 0.046]. The hazard ratio was even higher when blood HOTAIR levels were taken into account (hazard ratio = 5.9, 95% confidence interval: 1.3–26.1, P = 0.019). Upregulated HOTAIR relative expression in primary tumors and in blood of CRC patients is associated with unfavorable prognosis. Our data suggest that HOTAIR blood levels may serve as potential surrogate prognostic marker in sporadic CRC.