Abstract：
:The prediction of invasion or malignant behavior in PAs remains challenging. FSCN1, an actin-bundling protein, is associated with increased risk of mortality and metastasis in various cancer types. The objective of the study was to evaluate the expression of FSCN1 in 312 PAs cases, and to analyze its association with clinicopathologic features and invasion of PAs, thus serving as a promoter of cancer invasion. In non-function PAs (NFPA), FSCN1 nuclear-positive cases were 53/97 in the invasive group (IPA), and 21/115 in the noninvasive group (nIPA) (ⅹ(2) = 30.65, p = 0.004). FSCN1 cytoplasm-positive cases were 36/97 in IPA, and 8/107 in nIPA (ⅹ(2) = 29.09, p = 0.000). In growth hormone adenomas (GHomas), FSCN1 nuclear-positive were 10/13 in IPA, and 3/37 in nIPA (ⅹ(2) = 23.67, p = 0.000). FSCN1 cytoplasm-positive were 8/13 in IPA, and 2/37 in nIPA (Table 3 ⅹ(2) = 18.94, p = 0.000). Overall, a significant difference was found between FSCN1 expression and tumor size (ⅹ(2) = 46.21, p = 0.000), not age (ⅹ(2) = 2.09, p = 0.148). In the high FSCN1 expression group, 27/137 cases (19.7%) had tumor recurrence, and 10/175 cases (5.7%) in low FSCN1 level (ⅹ(2) = 14.40 p = 0.000). Reduction of FSCN1 suppressed the invasion level of GH3 cells through transwells test. In addition, reduction of FSCN1 can obviously down-regulate the level of Notch1 and DLL3. Our data may help in deciding whether FSCN1 can be a predictor for invasion and recurrence of PAs.
journal_name
Mol Cell Endocrinoljournal_title
Molecular and cellular endocrinologyauthors
Liu C,Gao H,Cao L,Gui S,Liu Q,Li C,Li D,Gong L,Zhang Ydoi
10.1016/j.mce.2015.10.021subject
Has Abstractpub_date
2016-01-05 00:00:00pages
217-24eissn
0303-7207issn
1872-8057pii
S0303-7207(15)30121-0journal_volume
419pub_type
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