| Content Provider | MDPI |
|---|---|
| Author | Akkiprik, Mustafa Peker, İrem Özmen, Tolga Amuran, Gökçe Güllüoğlu, Bahadır Kaya, Handan Özer, Ayşe |
| Abstract | IGFBP5 is an important regulatory protein in breast cancer progression. We tried to identify differentially expressed genes (DEGs) between breast tumor tissues with IGFBP5 overexpression and their adjacent normal tissues. In this study, thirty-eight breast cancer and adjacent normal breast tissue samples were used to determine IGFBP5 expression by qPCR. cDNA microarrays were applied to the highest IGFBP5 overexpressed tumor samples compared to their adjacent normal breast tissue. Microarray analysis revealed that a total of 186 genes were differentially expressed in breast cancer compared with normal breast tissues. Of the 186 genes, 169 genes were downregulated and 17 genes were upregulated in the tumor samples. KEGG pathway analyses showed that protein digestion and absorption, focal adhesion, salivary secretion, drug metabolism-cytochrome P450, and phenylalanine metabolism pathways are involved. Among these DEGs, the prominent top two genes (MMP11 and COL1A1) which potentially correlated with IGFBP5 were selected for validation using real time RT-qPCR. Only COL1A1 expression showed a consistent upregulation with IGFBP5 expression and COL1A1 and MMP11 were significantly positively correlated. We concluded that the discovery of coordinately expressed genes related with IGFBP5 might contribute to understanding of the molecular mechanism of the function of IGFBP5 in breast cancer. Further functional studies on DEGs and association with IGFBP5 may identify novel biomarkers for clinical applications in breast cancer. |
| File Size | 815104 |
| Ending Page | 1214 |
| Page Count | 14 |
| Starting Page | 1201 |
| File Format | |
| e-ISSN | 20734425 |
| DOI | 10.3390/genes6041201 |
| Journal | Genes |
| Issue Number | 4 |
| Volume Number | 6 |
| Language | English |
| Publisher Date | 2015-11-10 |
| Access Restriction | Open |
| Subject Keyword | gene expression profiling microarray pathway analysis IGFBP5 breast cancer |
| Content Type | Text |
| Resource Type | Article |
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