Strong association of fascin expression with triple negative breast cancer and basal-like phenotype in African-American women

Ashwini K. Esnakula, Luisel Ricks-Santi, John Kwagyan, Yasmine M. Kanaan, Robert L. DeWitty, Lori L. Wilson, Bert Gold, Wayne A.I. Frederick, Tammey J. Naab

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Fascin, an actin bundling protein, plays a critical role in cell motility due to formation of actin rich protrusions called filopodia, important in cell migration, invasion and metastatic spread. Fascin overexpression has been associated with epithelial to mesenchymal transition and correlates with progression and unfavourable prognosis in breast carcinoma. Objective: To evaluate fascin expression by immunohistochemistry and correlate the expression pattern with clinicopathological parameters in breast cancer in African-American (AA) women, in whom triple negative breast cancer (TNBC), an aggressive subtype, is more prevalent. Methods: Tissue microarrays were constructed from formalin- fixed, paraffin-embedded blocks of tumour tissue from primary breast carcinomas in 202 AA women. Immunohistochemical detection of fascin was correlated with four major subtypes of breast carcinoma (luminal A, luminal B, human epidermal growth factor receptor 2 and triple negative (TN)) and other clinicopathological factors, including age, grade, tumour size, stage, regional lymph node status and survival. Results: We observed a significant association between fascin expression and TN subtype, oestrogen receptor (ER) negativity, progesterone receptor (PR) negativity, Elston-Nottingham (EN) grade 3 and decreased overall survival. There was also a significant association between expression of CK 5/6, a marker of basal-like phenotype, and fascin expression. Conclusion: These results suggest that fascin is a marker for TN subtype having a basal-like phenotype and decreased overall survival. Fascin may represent a target for therapy in TNBC in AA women.

Original languageEnglish (US)
Pages (from-to)153-160
Number of pages8
JournalJournal of clinical pathology
Volume67
Issue number2
DOIs
StatePublished - Feb 2014
Externally publishedYes

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

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