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The evaluation of the caveolin-1 and AT-rich interactive domain 1 alpha expressions in uterine smooth muscle tumors

, : The evaluation of the caveolin-1 and AT-rich interactive domain 1 alpha expressions in uterine smooth muscle tumors. Indian Journal of Pathology & Microbiology 59(3): 301-304

This retrospective study was designed to evaluate the importance of tissue expressions of caveolin-1 (Cav-1) and AT-rich interactive domain 1 alpha (ARID-1A) which are known as signal regulator and tumor suppressor in differential diagnosis of uterine smooth muscle tumors (SMTs). Thirty patients recently diagnosed as uterine SMTs at the Tepecik Training and Research Hospital were identified using pathology databases. Immunohistochemical stains for Cav-1 and ARID-1A were performed. In this series, there were 10 leiomyosarcomas (LMSs), 10 uterine smooth muscle tumors of uncertain malignant potentials (STUMPs), and 10 leiomyomas (LMs). Cav-1 expression located cytoplasmic or perivascular area. Cytoplasmic Cav-1 expression was determined in 5 LMSs and 2 STUMPs while perivascular Cav-1 expression was determined in 9 LMSs and 2 STUMPs. Statistically, it was determined that if the tumor becomes malignant and more invasive, it gains the perivascular Cav-1 expression (P = 0.029). On the other hand, the mean nuclear staining rate for ARID-1A in LMSs (63 ± 23.4%) was higher than both STUMPs (60 ± 18.5%) and LMs (34.5 ± 16.5%). Statistically, it was determined that the expression of ARID-1A was significantly downregulated in LMs when compared with STUMPs and LMSs (P = 0.004). Our findings were demonstrated that perivascular Cav-1 expression was seen to be a marker for malignancy of uterine SMTs. Similarly, we found to link of ARID-1A expression and the aggressiveness of SMTs. Therefore, it may be suggested that Cav-1 and ARID-1A may act as predictive biomarkers in uterine SMTs.


PMID: 27510664

DOI: 10.4103/0377-4929.181891

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