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Investigation of XPD, MiR-145 and MiR-770 Expression in Patients with End-stage Renal Disease

Overview
Journal Mol Biol Rep
Specialty Molecular Biology
Date 2023 Jul 1
PMID 37392287
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Abstract

Background: The effective maintenance of genome integrity and fidelity is vital for the normal function of our tissues and organs, and the prevention of diseases. DNA repair pathways maintain genome stability, and the adequacy of genes acting in these pathways is essential for disease suppression and direct treatment responses. Chronic kidney disease is characterized by high levels of genomic damage. In this study, we examined the expression levels of the xeroderma pigmentosum group D (XPD) gene, which plays a role in the nucleotide excision repair (NER) repair mechanism, and the expression levels of miR-145 and miR-770 genes, which play a role in the regulation of the expression of the XPD gene, in hemodialysis patients with (n = 42) and without malignancy (n = 9) in pre- and post-dialysis conditions. We also evaluated these values with the clinical findings of the patients.

Methods & Results: Gene expression analysis was performed by real-time polymerase chain reaction (qRT-PCR). Compared to the individuals with normal kidney function (2.06 ± 0.32), the XPD gene expression was lower in the pre-dialysis condition both in hemodialysis patients without cancer (1.24 ± 0.18; p = 0.02) and in hemodialysis patients with cancer (0.82 ± 0.114; p = 0.001). On the other hand, we found that miR-145 and miR-770 expression levels were high in both groups. We also found that expression levels were affected by dialysis processes. A statistically significant positive correlation was found between miR-145 and mir770 expression levels in the pre-dialysis group of patients with (r=-0.988. p = 0.0001) and without (r=-0.934. p = 0.0001) malignancy.

Conclusions: Studies on DNA damage repair in the kidney will help develop strategies to protect kidney function against kidney diseases.

Citing Articles

Investigation of APE1 and OGG1 expression in chronic hemodialysis patients.

Rostami M, Yalin S, Altiparmak M, Guven M Mol Biol Rep. 2024; 51(1):144.

PMID: 38236479 DOI: 10.1007/s11033-023-09152-3.

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