• Turk J Med Sci · Aug 2018

    Detection of CCND1 , C-MYC , and FGFR1 amplification using modified SYBR Green qPCR and FISH in breast cancer

    • AzarnezhadAsaad, TabriziMina, JavanFirouzeh, and Parvin Mehdipour.
    • Turk J Med Sci. 2018 Aug 16; 48 (4): 759-767.

    Background/AimThe aims of this study were to detect CCND1 , C-MYC , and FGFR1 amplification using qPCR, confirmation with FISH, and to further assess their clinicopathological relevance.Materials And MethodsThirty-five breast tumor samples were analyzed for amplification of the selected genes using modified SYBR Green qPCR. The accuracy of the qPCR was assessed by FISH as a gold-standard method.ResultsCCND1 , C-MYC , and FGFR1 amplifications were observed in 34.28%, 28.57%, and 17.14% of the 35 samples, respectively. qPCR results were significantly confirmed by FISH and qPCR and FISH showed excellent correlation (P = 0.000). CCND1 amplification with tumor stage (P = 0.044), positive metastatic status (P = 0.042), positive family history (P = 0.042), and C-MYC status (P = 0.005); C-MYC amplification with tumor size (P = 0.021), tumor grade (P = 0.018), tumor stage (P = 0.032), and FGFR1 status (P < 0.000); and FGFR1 amplification with tumor size (P = 0.041) and positive ER status (P = 0.042) were statistically associated.ConclusionOur findings revealed that the applied qPCR approach could precisely quantify the relative gene copy number. More studies with a larger sample size are suggested to confirm the clinicopathological value of CCND1 , C-MYC , and FGFR1 amplification.

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