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Xihuang Pill-destabilized CD133/EGFR/Akt/mTOR cascade reduces stemness enrichment of glioblastoma via the down-regulation of SOX2

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机构: [1]Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong 510282, China [2]Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People’s Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China [3]Department of Neurosurgery/Neuro-Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong 510060, China
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关键词: Xihuang pill Glioma stem-like cells Stemness CD133/EGFR/Akt/mTOR cascade SOX2

摘要:
Our previous study found that XHP could induce GBM cells to undergo apoptosis. A lot of evidence suggests that glioma stem-like cells (GSCs) are key factors that contribute to disease progression and poor prognosis of glioblastoma multiforme (GBM). Traditional Chinese medicine has been applied in clinical practice as a complementary and alternative therapy for glioma.To evaluate the effect and the potential molecular mechanism of Xihuang pill (XHP) on GSCs.UPLC-QTOF-MS analysis was used for constituent analysis of XHP. Using network pharmacology and bioinformatics methods, a molecular network targeting GSCs by the active ingredients in XHP was constructed. Cell viability, self-renewal ability, apoptosis, and GSC markers were detected by CCK-8 assay, tumor sphere formation assay and flow cytometry, respectively. The interrelationship between GSC markers (CD133 and SOX2) and key proteins of the EGFR/Akt/mTOR signaling pathway was evaluated using GEPIA and verified by western blot. A GBM cell line stably overexpressing Akt was constructed using lentivirus to evaluate the role of Akt signaling in the regulation of glioma stemness. The effect of XHP on glioma growth was analyzed by a subcutaneously transplanted glioma cell model in nude mice, hematoxylin-eosin staining was used to examine pathological changes, TUNEL staining was used to detect apoptosis in tumor tissues, and the expression of GSC markers in tumor tissues was identified by western blot and immunofluorescence.Bioinformatics analysis showed that 55 matched targets were related to XHP targets and glioma stem cell targets. In addition to causing apoptosis, XHP could diminish the number of GBM 3D spheroids, the proportion of CD133-positive cells and the expression level of GSC markers (CD133 and SOX2) in vitro. Furthermore, XHP could attenuate the expression of CD133, EGFR, p-Akt, p-mTOR and SOX2 in GBM spheres. Overexpression of Akt significantly increased the expression level of SOX2, which was prohibited in the presence of XHP. XHP reduced GSC markers including CD133 and SOX2, and impeded the development of glioma growth in xenograft mouse models in vivo.We demonstrate for the first time that XHP down-regulates stemness, restrains self-renewal and induces apoptosis in GSCs and impedes glioma growth by down-regulating SOX2 through destabilizing the CD133/EGFR/Akt/mTOR cascade.Copyright © 2023 Elsevier GmbH. All rights reserved.

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出版当年[2022]版:
大类 | 1 区 医学
小类 | 1 区 药物化学 1 区 药学 1 区 全科医学与补充医学 1 区 植物科学
最新[2025]版:
大类 | 1 区 医学
小类 | 1 区 药物化学 1 区 全科医学与补充医学 1 区 药学 1 区 植物科学
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出版当年[2021]版:
Q1 CHEMISTRY, MEDICINAL Q1 INTEGRATIVE & COMPLEMENTARY MEDICINE Q1 PHARMACOLOGY & PHARMACY Q1 PLANT SCIENCES
最新[2023]版:
Q1 CHEMISTRY, MEDICINAL Q1 INTEGRATIVE & COMPLEMENTARY MEDICINE Q1 PHARMACOLOGY & PHARMACY Q1 PLANT SCIENCES

影响因子: 最新[2023版] 最新五年平均 出版当年[2021版] 出版当年五年平均 出版前一年[2020版] 出版后一年[2022版]

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第一作者机构: [1]Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong 510282, China [2]Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People’s Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
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通讯作者:
通讯机构: [1]Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong 510282, China [2]Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People’s Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China [*1]Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People’s Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China.
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