Helicobacter pylori-miRNA interaction in gastric cancer tissues: First prospective study from Turkey
Küçük Resim Yok
Tarih
2019
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Edizioni Int Srl
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Helicobacter pylori (H. pylori) is involved in the etiology of gastric cancer (GC). miRNAs are short RNAs that regulate gene expression by marking mRNAs for degradation. miRNAs are involved in tumorigenesis, metastasis, and cell proliferation. We aimed to investigate the miRNA expression profiles of tissues from H. pylori Wand (-) GC patients. Forty GC patients, 20 H. pylori Wand 20 H. pylori (-), and a healthy control group were included. The miRNA expression levels were investigated by microarrays and quantitative RT-PCR. We detected 9 upregulated and 4 downregulated miRNAs by microarray. We selected 5 upregulated and 5 downregulated miRNAs for the quantitative RT-PCR assay. The relative fold changes of miRNAs in the cancerous tissue and non-tumor mucosa specimens of H. pylori (+) GC patients for hsa-miR-194 were 4.24- and 3.83-fold higher, respectively, whereas the hsa-miR-145 expression levels were downregulated 0.33-fold and 0.43-fold, respectively, in the same group. The presence of H. pylori significantly upregulated hsa-miR-194 and downregulated hsa-miR-145 expression levels in H. pylofi(+)GC cases, compared to H. pylori (-) GC cases. Regional differences in the virulence of H. pylori strains may also be involved in the up- or downregulation of miRNA expression levels.
Açıklama
Anahtar Kelimeler
Helicobacter pylori, miRNA, gastric cancer
Kaynak
New Microbiologica
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
42
Sayı
4
