THE COMPARISON OF MICRORNAS INVOLVED IN SMALL CELL LUNG CANCER AND NON-SMALL CELL LUNG CANCER THROUGH BIOINFORMATICS ANALYSES

Yıl 2025, Cilt: 49 Sayı: 2, 284 - 300, 19.05.2025

Yalda Hekmatshoar , Aynur Karadağ Gürel , Adem Aydoğan

https://doi.org/10.33483/jfpau.1529091

Öz

Objective: Lung cancer is a major cause of cancer-related deaths worldwide. There are two main types of lung cancer, small cell and non-small cell. Finding new methods for achieving a good prognosis, developing targeted therapy and identifying potential biomarkers is crucial for improving the clinical efficacy of lung cancer. The aim of this study was to investigate the pathogenesis and potential molecular markers by finding differentially expressed miRNAs in 2 subtypes of lung cancer.
Materials and Methods: The datasets GSE19945 and GSE135918 containing miRNA data were downloaded from the GEO database. Analyzed with GEO2R online analysis tool with P<0.05 and log fold change |(FC)|≥ 1. Target genes of differentially expressed miRNAs have been identified. Network visualisation and module identification were performed using Cytoscape PPI. Three of the miRNA target genes were selected and validation of the genes was performed in the non-small cell lung cancer cell line A549.
Results and discussion: 17 common miRNAs with decreased expression and 2 with increased expression include hsa-miR-1249, hsa-miR-326, hsa-let-7c, hsa-miR-199a-5p, hsa-miR-940, hsa-miR-139-3p, hsa-miR-142-3p, hsa-miR-142-5p, hsa-miR-455-5p, hsa-miR-146b-5p,hsa-miR-152hsa-miR-133b, hsa-miR-498, hsa-miR-199b-5p, hsa-miR-140-3p, hsa-miR-203 and hsa-miR-139-5p. Defining the molecular functions and signaling pathways of miRNAs may deepen the current understanding of the molecular mechanisms of the 2 cancer types and contribute to the development of treatment options.

Anahtar Kelimeler

Bioinformatics analysis, lung cancer, microRNA, non-small cell lung cancer, small cell lung cancer

Proje Numarası

1919B012218259 , 2024/LP001

KÜÇÜK HÜCRELİ VE KÜÇÜK HÜCRELİ OLMAYAN AKCİĞER KANSERLERİNDE ROL OYNAYAN MİRNA’LARIN BİYOİNFORMATİK ANALİZLERLE KARŞILAŞTIRILMASI

Öz

Amaç: Akciğer kanseri, dünya çapında karsinomla ilişkili ölümlerin önemli bir nedenidir. Küçük hücreli ve küçük hücreli olmayan 2 ana akciğer kanseri türü bulunmaktadır. İyi prognozun elde edilmesi, hedefe yönelik tedavinin geliştirilmesi ve potansiyel biyobelirteçleri belirlenmesi amacıyla yeni yöntemler bulmak, akciğer kanserinin klinik etkinliğini geliştirilmesi için büyük önem taşımaktadır. Çalışmanın amacı 2 alt tipte farklı ifade olan miRNA’ları bularak patogenezi ve potansiyel moleküler belirteçlerini incelemektir.
Gereç ve Yöntem: miRNA verisi içeren GSE19945 ve GSE135918 nolu veri seti GEO veri tabanından indirilmiştir. GEO2R çevrimiçi analiz aracı ile P<0.05 ve log kat değişimi |(FC)|≥ 1 alınarak analiz edilmiştir. Farklı ifade edilen miRNA’ların hedef genleri tanımlanmıştır. Cytoscape PPI kullanılarak ağ görselleştirme ve modül tanımlaması yapılmıştır. miRNA hedef genlerinden 3 adet seçilerek genlerin validasyonu akciğer kanseri hücre hattı A549'da yapılmıştır.
Sonuç ve Tartışma: 17 ifadesi azalan ve 2 ifadesi artan ortak miRNA’lar arasında hsa-miR-1249, hsa-miR-326, hsa-let-7c, hsa-miR-199a-5p, hsa-miR-940, hsa-miR-139-3p, hsa-miR-142-3p, hsa-miR-142-5p, hsa-miR-455-5p, hsa-miR-146b-5p,hsa-miR-152hsa-miR-133b, hsa-miR-498, hsa-miR-199b-5p, hsa-miR-140-3p, hsa-miR-203 ve hsa-miR-139-5p yer almaktadır. miRNA’ların moleküler fonksiyonlarının ve sinyal yollarının tanımlanması, 2 kanser tipinin moleküler mekanizmalarının mevcut anlayışını derinleştirebilir ve, tedavi seçeneklerinin geliştirilmesine katkıda bulunabilir.

Anahtar Kelimeler

Akciğer kanseri, biyoinformatik analiz, küçük hücreli akciğer kanseri, küçük hücreli olmayan akciğer kanseri, miRNA

Destekleyen Kurum

TÜBİTAK, Uşak Üniversitesi BAP

Proje Numarası

1919B012218259 , 2024/LP001

Teşekkür

2209A proje kapsamında desteklenmiştir. TÜBİTAK ve Uşak Ünveristesine teşekkür ederiz.

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