Abstract
Background: It has been reported that diallyl disulfide (DADS) has anti-proliferative activity in many cancers.
Objective: The purpose of this study was to investigate the functions of DADS and the underlying mechanisms of its effect in breast cancer stem cells (BCSCs).
Method: Mammosphere formation assay, glucose consumption assay, lactate production assay and mouse xenograft experiments were performed to explore the functions of DADS in BCSCs. ATPase activity assay, western blotting and immunohistochemistry (IHC) assay were conduct to explore the mechanisms underlying the effects of DADS in BCSCs.
Results: The results showed that DADS suppressed cell stemness and glucose metabolism in BCSCs. In vivo mouse xenograft experiments showed that DADS inhibited the proliferation and metastasis of BCSCs. Then, we continued to explore the mechanisms underlying the effects of DADS in BCSCs and found that DADS acts by targeting CD44, Pyruvate kinase M2 (PKM2) and AMP-activated protein kinase (AMPK) signaling pathways. IHC analysis of 125 breast cancer patients’ tissues demonstrated that CD44, PKM2 and AMPK expression levels were positively correlated. In addition, positive CD44, PKM2 and AMPK expression was associated with poor patient overall survival (OS) and disease-free survival (DFS).
Conclusion: In summary, DADS suppresses cell stemness, proliferation, metastasis and glucose metabolism in BCSCs partly through the inhibition of CD44/PKM2/AMPK. DADS may be used as a potential therapy for breast cancer treatment.
Keywords: Diallyl disulfide, breast cancer stem cell, CD44, PKM2, AMPK, xenograft.
Current Cancer Drug Targets
Title:Diallyl Disulfide Inhibits Breast Cancer Stem Cell Progression and Glucose Metabolism by Targeting CD44/PKM2/AMPK Signaling
Volume: 18 Issue: 6
Author(s): Xinhua Xie, Xiaojia Huang, Hailin Tang, Feng Ye, Lu Yang, Xiaofang Guo, Zhi Tian, Xiaofang Xie, Cheng Peng* Xiaoming Xie*
Affiliation:
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Sichuan Province and Ministry of Science and Technology, Chengdu,China
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou,China
Keywords: Diallyl disulfide, breast cancer stem cell, CD44, PKM2, AMPK, xenograft.
Abstract: Background: It has been reported that diallyl disulfide (DADS) has anti-proliferative activity in many cancers.
Objective: The purpose of this study was to investigate the functions of DADS and the underlying mechanisms of its effect in breast cancer stem cells (BCSCs).
Method: Mammosphere formation assay, glucose consumption assay, lactate production assay and mouse xenograft experiments were performed to explore the functions of DADS in BCSCs. ATPase activity assay, western blotting and immunohistochemistry (IHC) assay were conduct to explore the mechanisms underlying the effects of DADS in BCSCs.
Results: The results showed that DADS suppressed cell stemness and glucose metabolism in BCSCs. In vivo mouse xenograft experiments showed that DADS inhibited the proliferation and metastasis of BCSCs. Then, we continued to explore the mechanisms underlying the effects of DADS in BCSCs and found that DADS acts by targeting CD44, Pyruvate kinase M2 (PKM2) and AMP-activated protein kinase (AMPK) signaling pathways. IHC analysis of 125 breast cancer patients’ tissues demonstrated that CD44, PKM2 and AMPK expression levels were positively correlated. In addition, positive CD44, PKM2 and AMPK expression was associated with poor patient overall survival (OS) and disease-free survival (DFS).
Conclusion: In summary, DADS suppresses cell stemness, proliferation, metastasis and glucose metabolism in BCSCs partly through the inhibition of CD44/PKM2/AMPK. DADS may be used as a potential therapy for breast cancer treatment.
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Cite this article as:
Xie Xinhua, Huang Xiaojia , Tang Hailin , Ye Feng, Yang Lu , Guo Xiaofang, Tian Zhi , Xie Xiaofang , Peng Cheng*, Xie Xiaoming*, Diallyl Disulfide Inhibits Breast Cancer Stem Cell Progression and Glucose Metabolism by Targeting CD44/PKM2/AMPK Signaling, Current Cancer Drug Targets 2018; 18 (6) . https://dx.doi.org/10.2174/1568009617666171024165657
DOI https://dx.doi.org/10.2174/1568009617666171024165657 |
Print ISSN 1568-0096 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-5576 |
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