2023
Small RNA Sequencing Identifies a Six-MicroRNA Signature Enabling Classification of Brain Metastases According to their Origin
ROŠKOVÁ, Ivana; Marek VEČEŘA; Lenka RADOVÁ; Karolína TRACHTOVÁ; František SIEGL et al.Základní údaje
Originální název
Small RNA Sequencing Identifies a Six-MicroRNA Signature Enabling Classification of Brain Metastases According to their Origin
Autoři
ROŠKOVÁ, Ivana; Marek VEČEŘA; Lenka RADOVÁ; Karolína TRACHTOVÁ; František SIEGL ORCID; Markéta HERMANOVÁ; Michal HENDRYCH; Leoš KŘEN; Václav VYBÍHAL; Hana VALEKOVÁ; Petra KASPAROVA; Ivana KOLOUŠKOVÁ; Tomáš KAZDA; Ondřej SLABÝ; Radim JANČÁLEK; Jiří ŠÁNA a Martin SMRČKA
Vydání
CANCER GENOMICS & PROTEOMICS, ATHENS, INT INST ANTICANCER RESEARCH, 2023, 1109-6535
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30204 Oncology
Stát vydavatele
Řecko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.600
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14740/23:00131080
Organizační jednotka
Středoevropský technologický institut
UT WoS
EID Scopus
Klíčová slova anglicky
Brain metastases; microRNA; small RNA sequencing; classifier; diagnosis
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 15. 10. 2024 15:09, Ing. Martina Blahová
Anotace
V originále
Background/Aim: Brain metastases (BMs) are the most frequent intracranial tumors in adults and one of the greatest challenges for modern oncology. Most are derived from lung, breast, renal cell, and colorectal carcinomas and melanomas. Up to 14% of patients are diagnosed with BMs of unknown primary, which are commonly characterized by an early and aggressive metastatic spread. It is important to discover novel biomarkers for early identification of BM origin, allowing better management of patients with this disease. Our study focused on microRNAs (miRNAs), which are very stable in frozen native and FFPE tissues and have been shown to be sensitive and specific diagnostic biomarkers of cancer. We aimed to identify miRNAs with significantly different expression in the five most frequent groups of BMs and develop a diagnostic classifier capable of sensitive and specific classification of BMs. Materials and Methods: Total RNA enriched for miRNAs was isolated using the mirVana miRNA Isolation Kit from 71 fresh-frozen histopathologically confirmed BM tissues originating in 5 cancer types. Sequencing libraries were prepared using the QIAseq miRNA Library Kit and sequenced on the NextSeq 500 platform. MiRNA expression was further validated by RT-qPCR. Results: Differential analysis identified 373 miRNAs with significantly different expression between 5 BM groups (p<0.001). A classifier model was developed based on the expression of 6 miRNAs (hsa-miR-141-3p, hsa-miR-141-5p, hsa-miR-146a-5p, hsa-miR-194-5p, hsa-miR-200b-3p and hsa-miR-365b-5p) with the ability to correctly classify 91.5% of samples. Subsequent validation confirmed both significantly different expression of selected miRNAs in 5 BM groups as well as their diagnostic potential. Conclusion: To date, our study is the first to analyze miRNA expression in various types of BMs using small RNA sequencing to develop a diagnostic classifier and, thus, to help stratify BMs of unknown primary. The presented results confirm the importance of studying the dysregulated expression of miRNAs in BMs and the diagnostic potential of the validated 6-miRNA signature.
Návaznosti
| LX22NPO5102, projekt VaV |
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| LX22NPO5107, projekt VaV |
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| NV18-03-00398, projekt VaV |
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| 90132, velká výzkumná infrastruktura |
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