Saponin 1 induces apoptosis and suppresses NF-κB-mediated survival signaling in glioblastoma multiforme (GBM).
Saponin 1 is a triterpeniod saponin extracted from Anemone taipaiensis, a traditional Chinese medicine against rheumatism and phlebitis. It has also been shown to exhibit significant anti-tumor activity against human leukemia (HL-60 cells) and human hepatocellular carcinoma (Hep-G2 cells). Herein we...
Guardado en:
Autores principales: | , , , , , , , , , , , |
---|---|
Formato: | article |
Lenguaje: | EN |
Publicado: |
Public Library of Science (PLoS)
2013
|
Materias: | |
Acceso en línea: | https://doaj.org/article/360bfc0babcd48bf8c9603898a4968b7 |
Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
id |
oai:doaj.org-article:360bfc0babcd48bf8c9603898a4968b7 |
---|---|
record_format |
dspace |
spelling |
oai:doaj.org-article:360bfc0babcd48bf8c9603898a4968b72021-11-18T08:45:09ZSaponin 1 induces apoptosis and suppresses NF-κB-mediated survival signaling in glioblastoma multiforme (GBM).1932-620310.1371/journal.pone.0081258https://doaj.org/article/360bfc0babcd48bf8c9603898a4968b72013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24278406/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Saponin 1 is a triterpeniod saponin extracted from Anemone taipaiensis, a traditional Chinese medicine against rheumatism and phlebitis. It has also been shown to exhibit significant anti-tumor activity against human leukemia (HL-60 cells) and human hepatocellular carcinoma (Hep-G2 cells). Herein we investigated the effect of saponin 1 in human glioblastoma multiforme (GBM) U251MG and U87MG cells. Saponin 1 induced significant growth inhibition in both glioblastoma cell lines, with a 50% inhibitory concentration at 24 h of 7.4 µg/ml in U251MG cells and 8.6 µg/ml in U87MG cells, respectively. Nuclear fluorescent staining and electron microscopy showed that saponin 1 caused characteristic apoptotic morphological changes in the GBM cell lines. Saponin 1-induced apoptosis was also verified by DNA ladder electrophoresis and flow cytometry. Additionally, immunocytochemistry and western blotting analyses revealed a time-dependent decrease in the expression and nuclear location of NF-κB following saponin 1 treatment. Western blotting data indicated a significant decreased expression of inhibitors of apoptosis (IAP) family members,(e.g., survivin and XIAP) by saponin 1. Moreover, saponin 1 caused a decrease in the Bcl-2/Bax ratio and initiated apoptosis by activating caspase-9 and caspase-3 in the GBM cell lines. These findings indicate that saponin 1 inhibits cell growth of GBM cells at least partially by inducing apoptosis and inhibiting survival signaling mediated by NF-κB. In addition, in vivo study also demonstrated an obvious inhibition of saponin 1 treatment on the tumor growth of U251MG and U87MG cells-produced xenograft tumors in nude mice. Given the minimal toxicities of saponin 1 in non-neoplastic astrocytes, our results suggest that saponin 1 exhibits significant in vitro and in vivo anti-tumor efficacy and merits further investigation as a potential therapeutic agent for GBM.Juan LiHaifeng TangYun ZhangChi TangBo LiYuangang WangZhenhui GaoPeng LuoAnan YinXiaoyang WangGuang ChengZhou FeiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 11, p e81258 (2013) |
institution |
DOAJ |
collection |
DOAJ |
language |
EN |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Juan Li Haifeng Tang Yun Zhang Chi Tang Bo Li Yuangang Wang Zhenhui Gao Peng Luo Anan Yin Xiaoyang Wang Guang Cheng Zhou Fei Saponin 1 induces apoptosis and suppresses NF-κB-mediated survival signaling in glioblastoma multiforme (GBM). |
description |
Saponin 1 is a triterpeniod saponin extracted from Anemone taipaiensis, a traditional Chinese medicine against rheumatism and phlebitis. It has also been shown to exhibit significant anti-tumor activity against human leukemia (HL-60 cells) and human hepatocellular carcinoma (Hep-G2 cells). Herein we investigated the effect of saponin 1 in human glioblastoma multiforme (GBM) U251MG and U87MG cells. Saponin 1 induced significant growth inhibition in both glioblastoma cell lines, with a 50% inhibitory concentration at 24 h of 7.4 µg/ml in U251MG cells and 8.6 µg/ml in U87MG cells, respectively. Nuclear fluorescent staining and electron microscopy showed that saponin 1 caused characteristic apoptotic morphological changes in the GBM cell lines. Saponin 1-induced apoptosis was also verified by DNA ladder electrophoresis and flow cytometry. Additionally, immunocytochemistry and western blotting analyses revealed a time-dependent decrease in the expression and nuclear location of NF-κB following saponin 1 treatment. Western blotting data indicated a significant decreased expression of inhibitors of apoptosis (IAP) family members,(e.g., survivin and XIAP) by saponin 1. Moreover, saponin 1 caused a decrease in the Bcl-2/Bax ratio and initiated apoptosis by activating caspase-9 and caspase-3 in the GBM cell lines. These findings indicate that saponin 1 inhibits cell growth of GBM cells at least partially by inducing apoptosis and inhibiting survival signaling mediated by NF-κB. In addition, in vivo study also demonstrated an obvious inhibition of saponin 1 treatment on the tumor growth of U251MG and U87MG cells-produced xenograft tumors in nude mice. Given the minimal toxicities of saponin 1 in non-neoplastic astrocytes, our results suggest that saponin 1 exhibits significant in vitro and in vivo anti-tumor efficacy and merits further investigation as a potential therapeutic agent for GBM. |
format |
article |
author |
Juan Li Haifeng Tang Yun Zhang Chi Tang Bo Li Yuangang Wang Zhenhui Gao Peng Luo Anan Yin Xiaoyang Wang Guang Cheng Zhou Fei |
author_facet |
Juan Li Haifeng Tang Yun Zhang Chi Tang Bo Li Yuangang Wang Zhenhui Gao Peng Luo Anan Yin Xiaoyang Wang Guang Cheng Zhou Fei |
author_sort |
Juan Li |
title |
Saponin 1 induces apoptosis and suppresses NF-κB-mediated survival signaling in glioblastoma multiforme (GBM). |
title_short |
Saponin 1 induces apoptosis and suppresses NF-κB-mediated survival signaling in glioblastoma multiforme (GBM). |
title_full |
Saponin 1 induces apoptosis and suppresses NF-κB-mediated survival signaling in glioblastoma multiforme (GBM). |
title_fullStr |
Saponin 1 induces apoptosis and suppresses NF-κB-mediated survival signaling in glioblastoma multiforme (GBM). |
title_full_unstemmed |
Saponin 1 induces apoptosis and suppresses NF-κB-mediated survival signaling in glioblastoma multiforme (GBM). |
title_sort |
saponin 1 induces apoptosis and suppresses nf-κb-mediated survival signaling in glioblastoma multiforme (gbm). |
publisher |
Public Library of Science (PLoS) |
publishDate |
2013 |
url |
https://doaj.org/article/360bfc0babcd48bf8c9603898a4968b7 |
work_keys_str_mv |
AT juanli saponin1inducesapoptosisandsuppressesnfkbmediatedsurvivalsignalinginglioblastomamultiformegbm AT haifengtang saponin1inducesapoptosisandsuppressesnfkbmediatedsurvivalsignalinginglioblastomamultiformegbm AT yunzhang saponin1inducesapoptosisandsuppressesnfkbmediatedsurvivalsignalinginglioblastomamultiformegbm AT chitang saponin1inducesapoptosisandsuppressesnfkbmediatedsurvivalsignalinginglioblastomamultiformegbm AT boli saponin1inducesapoptosisandsuppressesnfkbmediatedsurvivalsignalinginglioblastomamultiformegbm AT yuangangwang saponin1inducesapoptosisandsuppressesnfkbmediatedsurvivalsignalinginglioblastomamultiformegbm AT zhenhuigao saponin1inducesapoptosisandsuppressesnfkbmediatedsurvivalsignalinginglioblastomamultiformegbm AT pengluo saponin1inducesapoptosisandsuppressesnfkbmediatedsurvivalsignalinginglioblastomamultiformegbm AT ananyin saponin1inducesapoptosisandsuppressesnfkbmediatedsurvivalsignalinginglioblastomamultiformegbm AT xiaoyangwang saponin1inducesapoptosisandsuppressesnfkbmediatedsurvivalsignalinginglioblastomamultiformegbm AT guangcheng saponin1inducesapoptosisandsuppressesnfkbmediatedsurvivalsignalinginglioblastomamultiformegbm AT zhoufei saponin1inducesapoptosisandsuppressesnfkbmediatedsurvivalsignalinginglioblastomamultiformegbm |
_version_ |
1718421375335530496 |