J 2017

The natural compound Jatrophone interferes with Wnt/beta-catenin signaling and inhibits proliferation and EMT in human triple-negative breast cancer

FATIMA, I., I. EL-AYACHI, L. TAOTAO, MA LILLO, R. KRUTILINA et. al.

Basic information

Original name

The natural compound Jatrophone interferes with Wnt/beta-catenin signaling and inhibits proliferation and EMT in human triple-negative breast cancer

Authors

FATIMA, I. (840 United States of America), I. EL-AYACHI (840 United States of America), L. TAOTAO (840 United States of America), MA LILLO (840 United States of America), R. KRUTILINA (840 United States of America), TN SEAGROVES (840 United States of America), Tomasz Witold RADASZKIEWICZ (616 Poland, belonging to the institution), Miroslav HUTŇAN (703 Slovakia, belonging to the institution), Vítězslav BRYJA (203 Czech Republic, guarantor, belonging to the institution), SA KRUM (840 United States of America), F. RIVAS (840 United States of America) and GA MIRANDA-CARBONI (840 United States of America)

Edition

Plos one, San Francisco, Public Library of Science, 2017, 1932-6203

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10608 Biochemistry and molecular biology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.766

RIV identification code

RIV/00216224:14310/17:00099798

Organization unit

Faculty of Science

UT WoS

000419006200051

Keywords in English

BETA-CATENIN; WNT; PRODUCTS; PATHWAY; DISEASE; CELLS; AXIN; PHOSPHORYLATION; DISPARITIES

Tags

Tags

International impact, Reviewed
Změněno: 12/4/2018 14:16, Ing. Nicole Zrilić

Abstract

V originále

Metastatic breast cancer is the leading cause of worldwide cancer-related deaths among women. Triple negative breast cancers (TNBC) are highly metastatic and are devoid of estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER2) amplification. TNBCs are unresponsive to Herceptin and/or anti-estrogen therapies and too often become highly chemoresistant when exposed to standard chemotherapy. TNBCs frequently metastasize to the lung and brain. We have previously shown that TNBCs are active for oncogenic Wnt10b/beta-catenin signaling and that WNT10B ligand and its downstream target HMGA2 are predictive of poorer outcomes and are strongly associated with chemoresistant TNBC metastatic disease. In search of new chemicals to target the oncogenic WNT10B/beta-CATENIN/HMGA2 signaling axis, the anti-proliferative activity of the diterpene Jatrophone (JA), derived from the plant Jatropha isabelli, was tested on TNBC cells. JA interfered with the WNT TOPFLASH reporter at the level between receptor complex and beta-catenin activation. JA efficacy was determined in various subtypes of TNBC conventional cell lines or in TNBC cell lines derived from TNBC PDX tumors. The differential IC50 (DCI50) responsiveness was compared among the TNBC models based on etiological-subtype and their cellular chemoresistance status. Elevated WNT10B expression also coincided with increased resistance to JA exposure in several metastatic cell lines. JA interfered with cell cycle progression, and induced loss of expression of the canonical Wnt-direct targets genes AXIN2, HMGA2, MYC, PCNA and CCND1. These results indicate that Jatrophone could be a powerful new chemotherapeutic agent against highly chemoresistant triple negative breast cancers by targeting the oncogenic Wnt10b/beta-catenin signaling pathway.