FABP4 as a key determinant of metastatic potential of ovarian cancer

Kshipra M. Gharpure, Sunila Pradeep, Marta Sans, Rajesha Rupaimoole, Cristina Ivan, Sherry Y. Wu, Emine Bayraktar, Archana S. Nagaraja, Lingegowda S. Mangala, Xinna Zhang, Monika Haemmerle, Wei Hu, Cristian Rodriguez-Aguayo, Michael McGuire, Celia Sze Ling Mak, Xiuhui Chen, Michelle A. Tran, Alejandro Villar-Prados, Guillermo Armaiz Pena, Ragini KondetimmanahalliRyan Nini, Pranavi Koppula, Prahlad Ram, Jinsong Liu, Gabriel Lopez-Berestein, Keith Baggerly, Livia S. Eberlin, Anil K. Sood

Research output: Contribution to journalArticlepeer-review

173 Scopus citations

Abstract

The standard treatment for high-grade serous ovarian cancer is primary debulking surgery followed by chemotherapy. The extent of metastasis and invasive potential of lesions can influence the outcome of these primary surgeries. Here, we explored the underlying mechanisms that could increase metastatic potential in ovarian cancer. We discovered that FABP4 (fatty acid binding protein) can substantially increase the metastatic potential of cancer cells. We also found that miR-409-3p regulates FABP4 in ovarian cancer cells and that hypoxia decreases miR-409-3p levels. Treatment with DOPC nanoliposomes containing either miR-409-3p mimic or FABP4 siRNA inhibited tumor progression in mouse models. With RPPA and metabolite arrays, we found that FABP4 regulates pathways associated with metastasis and affects metabolic pathways in ovarian cancer cells. Collectively, these findings demonstrate that FABP4 is functionally responsible for aggressive patterns of disease that likely contribute to poor prognosis in ovarian cancer.

Original languageEnglish
Article number2923
JournalNature Communications
Volume9
Issue number1
DOIs
StatePublished - 1 Dec 2018
Externally publishedYes

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