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Triterpenoid saponin flaccidoside II from Anemone flaccida triggers apoptosis of NF1-associated malignant peripheral nerve sheath tumors via the MAPK-HO-1 pathway

Authors Han L, Fang Y, Cao Y, Wu F, Liu E, Mo G, Huang

Received 2 September 2015

Accepted for publication 22 January 2016

Published 5 April 2016 Volume 2016:9 Pages 1969—1979

DOI https://doi.org/10.2147/OTT.S95597

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Ram Prasad

Peer reviewer comments 3

Editor who approved publication: Dr Faris Farassati


Lin-tao Han,1 Yin Fang,1 Yan Cao,2 Feng-hua Wu,1 E Liu,2 Guo-yan Mo,2 Fang Huang1

1China Key Laboratory of TCM Resource and Prescription, Ministry of Education, 2Department of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, People’s Republic of China

Abstract: Malignant peripheral nerve sheath tumors (MPNSTs) are highly aggressive soft tissue neoplasms that are extremely rare and are frequently associated with neurofibromatosis type 1 patients. MPNSTs are typically fatal, and there is no effective treatment so far. In our previous study, we showed that flaccidoside II, one of the triterpenoid saponins isolated from Anemone flaccida Fr. Schmidt, has antitumor potential by inducing apoptosis. In the present study, we found that flaccidoside II inhibits proliferation and facilitates apoptosis in MPNST cell lines ST88-14 and S462. Furthermore, this study provides a mechanism by which the downregulation of heme oxygenase-1 via extracellular signal-regulated kinase-1/2 and p38 mitogen-activated protein kinase pathways is involved in the apoptotic role of flaccidoside II. This study suggested the potential of flaccidoside II as a novel pharmacotherapeutic approach for MPNSTs.

Keywords: flaccidoside II, malignant peripheral nerve sheath tumors, apoptosis, MAPK, HO-1

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