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Woo SH, Kim B, Kim SH, Jung BC, Lee Y, Kim YS. Pulsed electromagnetic field potentiates etoposide-induced MCF-7 cell death. BMB Rep 2022. [PMID: 34674796 PMCID: PMC8972140 DOI: 10.5483/bmbrep.2022.55.3.119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Etoposide is a chemotherapeutic medication used to treat various types of cancer, including breast cancer. It is established that pulsed electromagnetic field (PEMF) therapy can enhance the effects of anti-cancer chemotherapeutic agents. In this study, we investigated whether PEMFs influence the anti-cancer effects of etoposide in MCF-7 cells and determined the signal pathways affected by PEMFs. We observed that co-treatment with etoposide and PEMFs led to a decrease in viable cells compared with cells solely treated with etoposide. PEMFs elevated the etoposide-induced PARP cleavage and caspase-7/9 activation and enhanced the etoposide-induced down-regulation of survivin and up-regulation of Bax. PEMF also increased the etoposide-induced activation of DNA damage-related molecules. In addition, the reactive oxygen species (ROS) level was slightly elevated during etoposide treatment and significantly increased during co-treatment with etoposide and PEMF. Moreover, treatment with ROS scavenger restored the PEMF-induced decrease in cell viability in etoposide-treated MCF-7 cells. These results combined indicate that PEMFs enhance etoposide-induced cell death by increasing ROS induction–DNA damage–caspase-dependent apoptosis.
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Affiliation(s)
- Sung-Hun Woo
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju 26493, Korea
| | - Bohee Kim
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju 26493, Korea
| | - Sung Hoon Kim
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju 26493, Korea
- Department of Biomedical Laboratory Science, Korea Nazarene University, Cheonan 31172, Korea
| | - Byung Chul Jung
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju 26493, Korea
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, CA 94720, USA
| | - Yongheum Lee
- Department of Biomedical Engineering, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju 26493, Korea
| | - Yoon Suk Kim
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju 26493, Korea
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2
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Doan CC, Le TL, Ho NQC, Tran TLG, Le NTL, Vu QD, La THL, Nguyen VC, Nguyen TPT, Hoang NS. Investigation of bioactive chemical constituents and anti-cancer activity of ethanol extract of Curcuma singularis Gagnep rhizomes. Nat Prod Res 2021; 36:4757-4762. [PMID: 34794366 DOI: 10.1080/14786419.2021.2005595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Curcuma singularis Gagnep is a Vietnamese medicinal plant which has been commonly used in traditional and folk medicines for the treatment of different diseases. The goals of the present study are to investigate chemical composition and anti-proliferative activity of Curcuma singularis rhizome extract (CSE). The in vitro cytotoxicity of CSE was evaluated using WST-1 and LDH assays. The apoptosis induction was determined using nuclei DAPI staining and FACS assays. The main compounds of extract were identified and quantitatively analyzed using the validated HPLC method. The extract showed cytotoxic effects in various liver and breast cancer cells but had minimal effects on normal cells. It induced apoptosis on both Hep3B and SKBR3 cells in a dose-dependent manner. In addition, three sesquiterpene compounds, such as germacrone (3.25 ± 0.32 mg/g), ar-turmerone (1.12 ± 0.24 mg/g), and curcumol (0.31 ± 0.12 mg/g) were found as the main components of CSE. This is the first report on the in vitro cytotoxic effect of Curcuma singularis rhizomes against cancer cells.
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Affiliation(s)
- Chinh Chung Doan
- Department of Animal Biotechnology, Institute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam.,Faculty of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi City, Vietnam
| | - Thanh Long Le
- Department of Animal Biotechnology, Institute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam.,Faculty of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi City, Vietnam
| | - Nguyen Quynh Chi Ho
- Department of Animal Biotechnology, Institute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Thi Linh Giang Tran
- Department of Animal Biotechnology, Institute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Nguyen Tu Linh Le
- Department of Animal Biotechnology, Institute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Quang Dao Vu
- Department of Animal Biotechnology, Institute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Thi Hong Lan La
- Faculty of Pharmacy, Lac Hong University, Bien Hoa City, Vietnam
| | | | - Thi Phuong Thao Nguyen
- Department of Animal Biotechnology, Institute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam.,Faculty of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi City, Vietnam
| | - Nghia Son Hoang
- Department of Animal Biotechnology, Institute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam.,Faculty of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi City, Vietnam
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3
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Xiu M, Zeng X, Shan R, Wen W, Li J, Wan R. The oncogenic role of HBXIP. Biomed Pharmacother 2020; 133:111045. [PMID: 33378953 DOI: 10.1016/j.biopha.2020.111045] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/14/2020] [Accepted: 11/19/2020] [Indexed: 02/07/2023] Open
Abstract
Hepatitis B X-interacting protein (HBXIP) is a conserved protein of 19 kDa that was originally identified as a binding partner of hepatitis B virus X protein. Emerging evidence indicates that HBXIP is highly expressed in a variety of cancers and is correlated with poor clinical outcomes in cancer patients. HBXIP plays a critical role in cancer progression, but the underlying mechanisms are still unclear. In this review, we primarily focus on publications investigating HBXIP in cancer research, including its expression and clinical significance in cancer patients, its role as a coactivator of transcription factors in cancer cells, its inhibitory effects on the mitochondrial cytochrome c-caspase apoptotic pathway, as well as its roles in promoting mitosis and drug resistance in cancer cells, its regulatory effects on cancer metabolism, and its relationships with other signaling pathways or microRNAs in cancer. This review aims to compile and summarize existing knowledge of the functions of HBXIP in cancer, which provides a comprehensive reference for future studies on the oncogenic mechanisms of HBXIP.
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Affiliation(s)
- Mengxi Xiu
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, China; Second Clinical Medical College, Nanchang University, China
| | - Xiaohong Zeng
- Imaging Department, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, China
| | - Renfeng Shan
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, China
| | - Wu Wen
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, China
| | - Jianfeng Li
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, China
| | - Renhua Wan
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, China.
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Chen H, Shan J, Chen D, Wang R, Qi W, Wang H, Ke Y, Liu W, Zeng X. CtIP promotes G2/M arrest in etoposide-treated HCT116 cells in a p53-independent manner. J Cell Physiol 2018; 234:11871-11881. [PMID: 30478995 DOI: 10.1002/jcp.27824] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 11/12/2018] [Indexed: 12/21/2022]
Abstract
Acquired resistance to cytotoxic antineoplastic agents is a major clinical challenge in tumor therapy; however, the mechanisms involved are still poorly understood. In this study, we show that knockdown of CtIP, a corepressor of CtBP, promotes cell proliferation and alleviates G2/M phase arrest in etoposide (Eto)-treated HCT116 cells. Although the expression of p21 and growth arrest and DNA damage inducible α (GADD45a), which are important targets of p53, was downregulated in CtIP-deficient HCT116 cells, p53 deletion did not affect G2/M arrest after Eto treatment. In addition, the phosphorylation levels of Ser317 and Ser345 in Chk1 and of Ser216 in CDC25C were lower in CtIP-deficient HCT116 cells than in control cells after Eto treatment. Our results indicate that CtIP may enhance cell sensitivity to Eto by promoting G2/M phase arrest, mainly through the ATR-Chk1-CDC25C pathway rather than the p53-p21/GADD45a pathway. The expression of CtIP may be a useful biomarker for predicting the drug sensitivity of colorectal cancer cells.
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Affiliation(s)
- Hongyu Chen
- The Key Laboratory of Molecular Epigenetics of Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Jin Shan
- Laboratory of Noncoding RNA, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Dandan Chen
- The Key Laboratory of Molecular Epigenetics of Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Ruoxi Wang
- The Key Laboratory of Molecular Epigenetics of Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Wenjing Qi
- The Key Laboratory of Molecular Epigenetics of Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China.,Department of Bioscience, Changchun Normal University, Changchun, China
| | - Hailong Wang
- College of Life Science and Beijing Key Laboratory of DNA Damage Response, Capital Normal University, Beijing, China
| | - Yueshuang Ke
- The Key Laboratory of Molecular Epigenetics of Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Wenguang Liu
- The Key Laboratory of Molecular Epigenetics of Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Xianlu Zeng
- The Key Laboratory of Molecular Epigenetics of Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
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Synergistic Effect of Endogenous and Exogenous Aldehydes on Doxorubicin Toxicity in Yeast. BIOMED RESEARCH INTERNATIONAL 2018; 2018:4938189. [PMID: 30003101 PMCID: PMC5998155 DOI: 10.1155/2018/4938189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 04/30/2018] [Indexed: 12/25/2022]
Abstract
Anthracyclines are frequently used to treat many cancers including triple negative breast cancer, which is commonly observed in African-American women (AA), and tend to be more aggressive, carry worse prognoses, and are harder to manage because they lack molecular targets. Although effective, anthracyclines use can be limited by serious side effects and eventually the development of drug resistance. In S. cerevisiae, mutants of HOM6 display hypersensitivity to doxorubicin. HOM6 is required for synthesis of threonine and interruption of the pathway leads to accumulation of the threonine intermediate L-aspartate-semialdehyde. This intermediate may synergize with doxorubicin to kill the cell. In fact, deleting HOM3 in the first step, preventing the pathway to reach the HOM6 step, rescues the sensitivity of the hom6 strain to doxorubicin. Using several S. cerevisiae strains (wild type, hom6, hom3, hom3hom6, ydj1, siz1, and msh2), we determined their sensitivity to aldehydes and to their combination with doxorubicin, cisplatin, and etoposide. Combination of formaldehyde and doxorubicin was most effective at reducing cell survival by 31-fold–39-fold (in wild type cells) relative to doxorubicin and formaldehyde alone. This effect was dose dependent on doxorubicin. Cotreatment with formaldehyde and doxorubicin also showed increased toxicity in anthracycline-resistant strains siz1 and msh2. The hom6 mutant also showed sensitivity to menadione with a 2.5-fold reduction in cell survival. The potential use of a combination of aldehydes and cytotoxic drugs could potentially lead to applications intended to enhance anthracycline-based therapy.
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