Differential expression of homologous recombination DNA repair genes in the early and advanced stages of myelodysplastic syndrome

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11110%2F17%3A10364611" target="_blank" >RIV/00216208:11110/17:10364611 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11130/17:10364611 RIV/00064203:_____/17:10364611 RIV/00023736:_____/17:00011769 RIV/00064165:_____/17:10364611

Result on the web

<a href="http://dx.doi.org/10.1111/ejh.12920" target="_blank" >http://dx.doi.org/10.1111/ejh.12920</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/ejh.12920" target="_blank" >10.1111/ejh.12920</a>

Result language

angličtina

Original language name

Differential expression of homologous recombination DNA repair genes in the early and advanced stages of myelodysplastic syndrome

Original language description

Background: The high incidence of mutations and cytogenetic abnormalities in patients with myelodysplastic syndrome (MDS) suggests that defects in DNA repair mechanisms. We monitored DNA repair pathways in MDS and their alterations during disease progression. Methods: Expression profiling of DNA repair genes was performed on CD34+ cells, and paired samples were used for monitoring of RAD51 and XRCC2 gene expression during disease progression. Immunohistochemical staining for RAD51 was done on histology samples. Results: RAD51 and XRCC2 showed differential expression between low-risk and high-risk MDS (P&lt;.0001), whereas RPA3 was generally decreased among the entire cohort (FC=-2.65, P&lt;.0001). We demonstrated that RAD51 and XRCC2 expression gradually decreased during the progression of MDS. Down-regulation of XRCC2 and RAD51 expression was connected with abnormalities on chromosome 7 (P=.0858, P=.0457). Immunohistochemical staining revealed the presence of RAD51 only in the cytoplasm in low-risk MDS, while in both the cytoplasm and nucleus in high-risk MDS. The multivariate analysis identified RAD51 expression level (HR 0.49; P=.01) as significant prognostic factor for overall survival of patients with MDS. Conclusions: Our study demonstrates that the expression of DNA repair factors, primarily RAD51 and XRCC2, is deregulated in patients with MDS and presents a specific pattern with respect to prognostic categories.

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

30205 - Hematology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2017

Confidentiality

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

Name of the periodical

European Journal of Haematology

ISSN

0902-4441

e-ISSN

—

Volume of the periodical

99

Issue of the periodical within the volume

4

Country of publishing house

DK - DENMARK

Number of pages

9

Pages from-to

323-331

UT code for WoS article

000411525900005

EID of the result in the Scopus database

2-s2.0-85029796452