fluorescent in situ hybridization and real-time quantitative polymerase chain reaction to evaluate her-2/neu status in breast cancer

Authors

fatemeh homaei shandiz

dept. of radiation oncology, mashhad university of medical sciences, cancer research center, mashhad, iran azar fani

cancer molecular pathology research center, ghaem hospital, mashhad university of medical sciences, mashhad, iran sepideh shakeri

cancer molecular pathology research center, ghaem hospital, mashhad university of medical sciences, mashhad, iran maryam sheikhi

cancer molecular pathology research center, ghaem hospital, mashhad university of medical sciences, mashhad, iran abouzar ramezani farkhani

abstract

background:breast cancer remains the most common and second lethal cancer in females. her-2/neu is one of the most important amplified oncogene in breast cancer. the amplification of her-2 is correlated with decreased survival, metastasis, and early recurrence.  the amplification of her-2/neu gene and synthesis of the protein are reported in 10%-34% of breast cancer cases associated with tumor size, advanced tumor stage, high-grade tumor, young age at diagnosis, absence of steroid hormone receptor, and lymph node involvement. methods: fluorescence in situ hybridization (fish) and immunohistochemistry (ihc) methods are options to evaluate her-2 expression. the current study aimed at identifying the correlation between fish and real-time polymerase chain reaction (pcr) in measuring her-2 expression. results: the study investigated the performance of the real-time pcr as measured against fish method in ihc +2 borderline cases. in a total of 120 ihc 2+ samples, 58.3% were negative and 41.6% positive for her-2 gene, confirmed by fish as a gold standard method. the real-time pcr ratio was

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Journal title:
iranian journal of pathology

جلد ۱۲، شماره ۱، صفحات ۶۷-۷۳

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