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Sokolov S, Zyrina A, Akimov S, Knorre D, Severin F. Toxic Effects of Penetrating Cations. MEMBRANES 2023; 13:841. [PMID: 37888013 PMCID: PMC10608470 DOI: 10.3390/membranes13100841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/08/2023] [Accepted: 10/19/2023] [Indexed: 10/28/2023]
Abstract
As mitochondria are negatively charged organelles, penetrating cations are used as parts of chimeric molecules to deliver specific compounds into mitochondria. In other words, they are used as electrophilic carriers for such chemical moieties as antioxidants, dyes, etc., to transfer them inside mitochondria. However, unmodified penetrating cations affect different aspects of cellular physiology as well. In this review, we have attempted to summarise the data about the side effects of commonly used natural (e.g., berberine) and artificial (e.g., tetraphenylphosphonium, rhodamine, methylene blue) penetrating cations on cellular physiology. For instance, it was shown that such types of molecules can (1) facilitate proton transport across membranes; (2) react with redox groups of the respiratory chain; (3) induce DNA damage; (4) interfere with pleiotropic drug resistance; (5) disturb membrane integrity; and (6) inhibit enzymes. Also, the products of the biodegradation of penetrating cations can be toxic. As penetrating cations accumulate in mitochondria, their toxicity is mostly due to mitochondrial damage. Mitochondria from certain types of cancer cells appear to be especially sensitive to penetrating cations. Here, we discuss the molecular mechanisms of the toxic effects and the anti-cancer activity of penetrating cations.
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Affiliation(s)
- Svyatoslav Sokolov
- Department of Molecular Energetics of Microorganisms, Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 1–40 Leninskie Gory, 119991 Moscow, Russia; (S.S.); (D.K.)
| | - Anna Zyrina
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, Premises 8, Bldg. 1, Village of Institute of Poliomyelitis, Settlement “Moskovskiy”, 108819 Moscow, Russia;
| | - Sergey Akimov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 LeninskiyProspekt, 119071 Moscow, Russia;
| | - Dmitry Knorre
- Department of Molecular Energetics of Microorganisms, Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 1–40 Leninskie Gory, 119991 Moscow, Russia; (S.S.); (D.K.)
| | - Fedor Severin
- Department of Molecular Energetics of Microorganisms, Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 1–40 Leninskie Gory, 119991 Moscow, Russia; (S.S.); (D.K.)
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2
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Baker Rogers J, Higa GM. Spoken and Unspoken Matters Regarding the Use of Opioids in Cancer. J Pain Res 2022; 15:909-924. [PMID: 35411188 PMCID: PMC8994621 DOI: 10.2147/jpr.s349107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 03/24/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Janna Baker Rogers
- Sections of Geriatrics, Palliative Medicine and Hospice, Department of Medicine, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Gerald M Higa
- Departments of Clinical Pharmacy and Medicine, Schools of Pharmacy and Medicine, West Virginia University, Morgantown, WV, USA
- Correspondence: Gerald M Higa, Departments of Clinical Pharmacy and Medicine, Schools of Pharmacy and Medicine, West Virginia University, Morgantown, WV, USA, 26506, Email
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Bailly C. Medicinal applications and molecular targets of dequalinium chloride. Biochem Pharmacol 2021; 186:114467. [PMID: 33577890 DOI: 10.1016/j.bcp.2021.114467] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 12/23/2022]
Abstract
For more than 60 years dequalinium chloride (DQ) has been used as anti-infective drug, mainly to treat local infections. It is a standard drug to treat bacterial vaginosis and an active ingredient of sore-throat lozenges. As a lipophilic bis-quaternary ammonium molecule, the drug displays membrane effects and selectively targets mitochondria to deplete DNA and to block energy production in cells. But beyond its mitochondriotropic property, DQ can interfere with the correct functioning of diverse proteins. A dozen of DQ protein targets have been identified and their implication in the antibacterial, antiviral, antifungal, antiparasitic and anticancer properties of the drug is discussed here. The anticancer effects of DQ combine a mitochondrial action, a selective inhibition of kinases (PKC-α/β, Cdc7/Dbf4), and a modulation of Ca2+-activated K+ channels. At the bacterial level, DQ interacts with different multidrug transporters (QacR, AcrB, EmrE) and with the transcriptional regulator RamR. Other proteins implicated in the antiviral (MPER domain of gp41 HIV-1) and antiparasitic (chitinase A from Vibrio harveyi) activities have been identified. DQ also targets α -synuclein oligomers to restrict protofibrils formation implicated in some neurodegenerative disorders. In addition, DQ is a typical bolaamphiphile molecule, well suited to form liposomes and nanoparticules useful for drug entrapment and delivery (DQAsomes and others). Altogether, the review highlights the many pharmacological properties and therapeutic benefits of this old 'multi-talented' drug, which may be exploited further. Its multiple sites of actions in cells should be kept in mind when using DQ in experimental research.
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Pan Y, Zhao S, Chen F. The potential value of dequalinium chloride in the treatment of cancer: Focus on malignant glioma. Clin Exp Pharmacol Physiol 2021; 48:445-454. [PMID: 33496065 DOI: 10.1111/1440-1681.13466] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 01/05/2021] [Indexed: 12/12/2022]
Abstract
Dequalinium chloride has been known as one kind of antibiotic that displays a broad antimicrobial spectrum and has been clinically proven to be very safe. In recent years, studies have shown that dequalinium chloride can inhibit the growth of malignant tumours, and reports were mainly used for solid tumours. Glioblastoma is the most common malignant neuroepithelial tumour of the central nervous system in adults, and the prognosis of glioblastoma is poor as it has a high resistance to apoptosis. This review summarizes the current understanding of dequalinium chloride-induced cancer cell apoptosis and its potential role in glioblastoma resistance and progression. Particularly, we focus on dequalinium chloride as it exerts a wide range of anti-cancer activity through its ability to target and accumulate in the mitochondria, and it effectively inhibits the growth of glioblastoma cells in vitro and vivo. Dequalinium chloride is an inhibitor of XIAP and can also act as a mitochondrial targeting agent, which gives it an interesting perspective regarding recent advances in the treatment of malignant glioma.
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Affiliation(s)
- Yuehai Pan
- Department of Hand and foot surgery, The affiliated hospital of QingDao university, ShangDong, China
| | - Shuai Zhao
- Department of Anesthesiology, Bonn University, Bonn, Germany
| | - Fan Chen
- Department of Neurosurgery, The affiliated hospital of QingDao university, ShangDong, China
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Liu X, Gao L, Zhao Q, Wang X, Yang C, Bi J, Yang R, Jin X, Lan R, Cui R, Wang X, Li W, Wang X, Yang Y, Yu X, Lin Y, Liu J, Yin G. Inhibition of porcine reproductive and respiratory syndrome virus by PKC inhibitor dequalinium chloride in vitro. Vet Microbiol 2020; 251:108913. [PMID: 33166843 DOI: 10.1016/j.vetmic.2020.108913] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 10/26/2020] [Indexed: 12/14/2022]
Abstract
As a severe disease characterized by reproductive failure and respiratory distress, porcine reproductive and respiratory syndrome (PRRS) is one of the most leading threats to the swine industry worldwide. Highly evolving porcine reproductive and respiratory syndrome virus (PRRSV) strains with distinct genetic diversity make the current vaccination strategy much less cost-effective and thus urge alternative protective host directed therapeutic approaches. RACK1-PKC-NF-κB signalling axis was suggested as a potential therapeutic target for PRRS control, therefore we tested the inhibitory effect of PKC inhibitor dequalinium chloride (DECA) on the PRRSV infection in vitro. RT-qPCR, western blot, Co-IP and cytopathic effect (CPE) observations revealed that DECA suppressed PRRSV infection and protected Marc-145 cells and porcine alveolar macrophages (PAMs) from severe cytopathic effects, by repressing the PKCα expression, the interaction between RACK1 and PKCα, and subsequently the NF-κB activation. In conclusion, the data presented in this study shed more light on deeper understanding of the molecular pathogenesis upon PRRSV infection and more importantly suggested DECA as a potential promising drug candidate for PRRS control.
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Affiliation(s)
- Xiao Liu
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Libo Gao
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Qian Zhao
- Center for Animal Disease Control and Prevention, Chuxiong 675000, Yunnan, China
| | - Xiangmin Wang
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Chao Yang
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Junlong Bi
- Center for Animal Disease Control and Prevention, Chuxiong 675000, Yunnan, China
| | - Runhuan Yang
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Xiuli Jin
- First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Rui Lan
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Rongjun Cui
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Xiaochun Wang
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Wenying Li
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Xuesong Wang
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Ying Yang
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Xin Yu
- School of Basic Medicine, Dali University, Dali 671003, Yunnan, China
| | - Yingbo Lin
- Department of Oncology-Pathology, Karolinska Institute, 17176 Stockholm, Sweden
| | - Jianping Liu
- School of Clinical Medicine, Dali University, Dali 671003, Yunnan, China.
| | - Gefen Yin
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, Yunnan, China.
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Zhang Y, Xiao Y, Dong Q, Ouyang W, Qin Q. Neferine in the Lotus Plumule Potentiates the Antitumor Effect of Imatinib in Primary Chronic Myeloid Leukemia Cells In Vitro. J Food Sci 2019; 84:904-910. [PMID: 30866043 DOI: 10.1111/1750-3841.14484] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 01/22/2019] [Accepted: 01/25/2019] [Indexed: 12/19/2022]
Abstract
Imatinib, the prototype BCR-ABL tyrosine kinase inhibitor (TKI), is the first-line treatment for Philadelphia chromosome-positive chronic myeloid leukemia (CML) in the chronic phase. However, a subgroup of patients exhibit poor response or experience relapse. This issue may be overcome by combination therapy using natural compounds. Neferine, a major bisbenzylisoquinoline alkaloid extracted from "lotus plumule" (seed embryo of lotus) commonly used in traditional Chinese medicine and tea, was used herein in the combination treatment of CML. The MTT assay showed that neferine exerted cytotoxicity in primary CML cells in a dose-dependent manner. Moreover, low concentrations of neferine (4 and 8 µM) sensitized primary CML cells to imatinib (CI < 1), and significantly decreased its IC50 from 0.70 ± 0.10 to 0.32 ± 0.06 µM and 0.16 ± 0.02 µM, respectively. Cotreatment of neferine and imatinib significantly decreased the expression of BCR-ABL protein and its molecular chaperone heat shock protein 90 (Hsp90) mRNA and protein levels, and further decreased phospho-extracellular regulated protein kinase 1/2 (p-Erk1/2) and myeloid cell leukemia (Mcl-1) expression. These results suggest that neferine might be a potential imatinib sensitizer in CML treatment. PRACTICAL APPLICATION: In China, Lotus plumule, the green embryo of lotus, is used as a tea and as a source of herbal medicine in the treatment of anxiety, insomnia, spermatorrhea, and thirst. Additional, neferine, a bisbenzylisoquinoline alkaloid extracted from lotus plumule has been shown to have antitumor potential. Herein, the effect of neferine and imatinib cotreatment on primary CML cells obtained from CML patients was assessed, with a synergistic effect being observed between the two compounds. Therefore, neferine might be a promising natural compound to potentiate imatinib in CML patients.
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Affiliation(s)
- Yalan Zhang
- Xiangya Hospital, Central South Univ., Changsha, China
| | - Yuhang Xiao
- Xiangya Hospital, Central South Univ., Changsha, China
| | - Qixing Dong
- Xiangya Hospital, Central South Univ., Changsha, China
| | | | - Qun Qin
- Xiangya Hospital, Central South Univ., Changsha, China
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Wei YC, Zhang B, Li X, Liu XM, Zhang J, Lei B, Li B, Zhai R, Chen Q, Li Y. Upregulation and activation of δ‑opioid receptors promotes the progression of human breast cancer. Oncol Rep 2016; 36:2579-2586. [PMID: 27665747 DOI: 10.3892/or.2016.5109] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 03/26/2016] [Indexed: 11/05/2022] Open
Abstract
δ‑opioid receptor (DOR) belongs to the family of G protein‑coupled receptors (GPCRs). Numerous studies have shown that DOR is widely distributed in human peripheral tissues and is closely related to the development and progression of certain malignant tumours. However, there is controversy in the literature regarding whether DOR has an impact on the development and progression of human breast cancer. The present study comprehensively elaborates on the biological functions of DOR by determining the distribution of DOR expression in breast cancer tissues and cells and by further verifying the effects of DOR on breast cancer progression. DOR was found to be highly expressed in human breast cancer tissues and cells. In addition, the high expression level of DOR positively correlated with tumour grade and clinical stage and negatively correlated with breast cancer metastasis and prognosis. Upregulating and activating DOR promoted the proliferation of human breast cancer cells in a concentration‑dependent manner within a specific concentration range, whereas downregulating or inhibiting DOR activation significantly suppressed cell proliferation. The majority of tumour cells were arrested in G1 phase, and some cells exhibited apoptosis. DOR upregulation and activation induced protein kinase C (PKC) activation, resulting in increased phosphorylation levels of extracellular signal‑regulated kinases (ERKs). After inhibition of the PKC/ERK signalling pathway, the effects of DOR on breast cancer were significantly attenuated in vivo and in vitro. In summary, DOR is highly expressed in breast cancer and is closely related to its progression. These results suggest that DOR may serve as a potential biomarker for the early diagnosis of breast cancer and may be a viable molecular target for therapeutic intervention.
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Affiliation(s)
- Yang-Chao Wei
- Department of Medical Oncology, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| | - Bin Zhang
- Department of Breast and Thyroid Surgery, The First Hospital of Jining, Jining, Shandong 272011, P.R. China
| | - Xuan Li
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| | - Xiao-Meng Liu
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong University, Jinan, Shandong 250017, P.R. China
| | - Jing Zhang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| | - Biao Lei
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| | - Bo Li
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| | - Run Zhai
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| | - Qian Chen
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| | - Yang Li
- Department of Medical Oncology, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
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Roy M, Sarkar R, Mukherjee A, Mukherjee S. Inhibition of crosstalk between Bcr-Abl and PKC signaling by PEITC, augments imatinib sensitivity in chronic myelogenous leukemia cells. Chem Biol Interact 2015; 242:195-201. [PMID: 26456889 DOI: 10.1016/j.cbi.2015.10.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 08/05/2015] [Accepted: 10/05/2015] [Indexed: 12/11/2022]
Abstract
Chronic myelogenous leukemia (CML), a clonal hyperproliferation of immature blood cells accounts for 20% of adult leukemia cases. Reciprocal translocation of chromosomes 9 and 22, results into Bcr-Abl fusion and is responsible for expression of a tyrosine kinase protein p210(bcr/abl), which mediates several survival pathways and confer therapeutic resistance. Protein kinase C (PKC), a family of serine threonine kinases play an important role in the process of leukemogenesis. A crosstalk between Bcr-Abl and PKC signaling has been documented. Therefore, targeting p210(bcr/abl) and its associated signaling proteins using non-toxic natural means will be an effective strategy for antileukemic therapy. Aim of the present study is to investigate whether PEITC, a natural isothiocyanate in combination with imatinib mesylate (IM), a tyrosine kinase inhibitor could increase the therapeutic efficacy of IM by modulating the expression of p210(bcr/abl). Enhanced cytotoxic efficacy of IM by PEITC was further validated using another myelogenous leukemia cell line, KU812. It was observed that PEITC in combination with IM efficiently downregulated the expression of p210(bcr/abl) in chronic myelogenous leukemia cell lines (K-562). PEITC inhibited the expressions of PKCα, PKCβII and PKCζ (both phosphorylated and total form). Expression of Raf1 and ERK1/2, two important target proteins in PKC signaling cascade was diminished. The result indicated that PEITC ultimately reduced expression of Raf1 and ERK1/2 through Bcr-Abl and PKC inhibition. This result was further confirmed by UCN-01, a selective PKC inhibitor and IM; indicating an association between p210(bcr/abl) and PKC with Raf1 and ERK1/2. PEITC thus may have enormous potential in synergistic therapy of leukemia by enhancing drug efficacy.
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Affiliation(s)
- Madhumita Roy
- Department of Environmental Carcinogenesis & Toxicology, Chittaranjan National Cancer Institute, 37, S P Mukherjee Road, Kolkata, 700 026, India.
| | - Ruma Sarkar
- Department of Environmental Carcinogenesis & Toxicology, Chittaranjan National Cancer Institute, 37, S P Mukherjee Road, Kolkata, 700 026, India
| | - Apurba Mukherjee
- Department of Environmental Carcinogenesis & Toxicology, Chittaranjan National Cancer Institute, 37, S P Mukherjee Road, Kolkata, 700 026, India
| | - Sutapa Mukherjee
- Department of Environmental Carcinogenesis & Toxicology, Chittaranjan National Cancer Institute, 37, S P Mukherjee Road, Kolkata, 700 026, India
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Li H, Chen Z, Zhou S. Apoptosis in glioma-bearing rats after neural stem cell transplantation. Neural Regen Res 2014; 8:1793-802. [PMID: 25206476 PMCID: PMC4145955 DOI: 10.3969/j.issn.1673-5374.2013.19.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 06/03/2013] [Indexed: 12/22/2022] Open
Abstract
Abnormal activation of the Ras/Raf/Mek/Erk signaling cascade plays an important role in glioma. Inhibition of this aberrant activity could effectively hinder glioma cell proliferation and promote cell apoptosis. To investigate the mechanism of glioblastoma treatment by neural stem cell transplantation with respect to the Ras/Raf/Mek/Erk pathway, C6 glioma cells were prepared in suspension and then infused into the rat brain to establish a glioblastoma model. Neural stem cells isolated from fetal rats were then injected into the brain of this glioblastoma model. Results showed that Raf-1, Erk and Bcl-2 protein expression significantly increased, while Caspase-3 protein expression decreased. After transplantation of neural stem cells, Raf-1, Erk and Bcl-2 protein expression significantly decreased, while Caspase-3 protein expression significantly increased. Our findings indicate that transplantation of neural stem cells may promote apoptosis of glioma cells by inhibiting Ras/Raf/Mek/Erk signaling, and thus may represent a novel treatment approach for glioblastoma.
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Affiliation(s)
- Hua Li
- Department of Neurology, the 476 Hospital of Chinese PLA, Fuzhou 350002, Fujian Province, China
| | - Zhenjun Chen
- Department of Neurology, the 476 Hospital of Chinese PLA, Fuzhou 350002, Fujian Province, China
| | - Shaopeng Zhou
- Department of Anesthesiology, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong Province, China
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García-Pérez AI, Galeano E, Nieto E, Estañ MC, Sancho P. Dequalinium induces cytotoxicity in human leukemia NB4 cells by downregulation of Raf/MEK/ERK and PI3K/Akt signaling pathways and potentiation of specific inhibitors of these pathways. Leuk Res 2014; 38:795-803. [DOI: 10.1016/j.leukres.2014.01.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 01/15/2014] [Accepted: 01/19/2014] [Indexed: 02/06/2023]
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Wang S, Wang X, Du Z, Liu Y, Huang D, Zheng K, Liu K, Zhang Y, Zhong X, Wang Y. SNX-25a, a novel Hsp90 inhibitor, inhibited human cancer growth more potently than 17-AAG. Biochem Biophys Res Commun 2014; 450:73-80. [DOI: 10.1016/j.bbrc.2014.05.076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Accepted: 05/16/2014] [Indexed: 01/14/2023]
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Jia K, Sun D, Ling S, Tian Y, Yang X, Sui J, Tang B, Wang L. Activated δ‑opioid receptors inhibit hydrogen peroxide‑induced apoptosis in liver cancer cells through the PKC/ERK signaling pathway. Mol Med Rep 2014; 10:839-47. [PMID: 24912447 DOI: 10.3892/mmr.2014.2301] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Accepted: 04/14/2014] [Indexed: 11/06/2022] Open
Abstract
Apoptotic liver cancer cells have important roles in liver tumorigenesis and liver cancer progression. Recent studies have shown that δ‑opioid receptors are highly expressed in human liver and liver cancer cells. The present study aimed to investigate the role of activated δ‑opioid receptors on human liver cancer cell apoptosis and its interrelation with the mitochondria and the protein kinase C/extracellular‑signal‑regulated kinase (PKC/ERK) signaling pathway. H2O2 was used to induce apoptosis in human liver cancer cells. During apoptosis, mitochondrial transmembrane potentials were observed to decrease, cytochrome c expression was found to increase and B cell lymphoma 2 (Bcl‑2) expression decreased. These findings suggested that H2O2‑induced apoptosis was mediated through the mitochondrial pathway. Of note, activated δ‑opioid receptors were observed to inhibit H2O2‑induced apoptosis in human liver cancer cells. Following δ‑opioid receptor activation, the number of apoptotic liver cancer cells decreased, mitochondrial transmembrane potentials were restored, cytoplasmic cytochrome c and Bcl‑2‑associated X protein expression decreased and Bcl‑2 expression increased. These data suggested that δ‑opioid receptor activation inhibited mitochondria‑mediated apoptosis. In addition, activation of δ‑opioid receptors was observed to increase the expression of PKC and ERK in human liver cancer cells. Furthermore, upon inhibition of the PKC/ERK signaling pathway, the protective effect associated with the δ‑opioid receptor on liver cancer cell apoptosis was inhibited, which was not associated with the status of δ‑opioid receptor activation. These findings suggested that the PKC/ERK signaling pathway has an important role in δ‑opioid receptor‑mediated inhibition of apoptosis in human liver cancer cells.
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Affiliation(s)
- Kaiqi Jia
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Deguang Sun
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Sunbin Ling
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Yu Tian
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Xuejun Yang
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Jidong Sui
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Bo Tang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| | - Liming Wang
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
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Wang H, Yu J, Zhang L, Xiong Y, Chen S, Xing H, Tian Z, Tang K, Wei H, Rao Q, Wang M, Wang J. RPS27a promotes proliferation, regulates cell cycle progression and inhibits apoptosis of leukemia cells. Biochem Biophys Res Commun 2014; 446:1204-10. [PMID: 24680683 DOI: 10.1016/j.bbrc.2014.03.086] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2014] [Accepted: 03/18/2014] [Indexed: 01/24/2023]
Abstract
Ribosomal protein S27a (RPS27a) could perform extra-ribosomal functions besides imparting a role in ribosome biogenesis and post-translational modifications of proteins. The high expression level of RPS27a was reported in solid tumors, and we found that the expression level of RPS27a was up-regulated in advanced-phase chronic myeloid leukemia (CML) and acute leukemia (AL) patients. In this study, we explored the function of RPS27a in leukemia cells by using CML cell line K562 cells and its imatinib resistant cell line K562/G01 cells. It was observed that the expression level of RPS27a was high in K562 cells and even higher in K562/G01 cells. Further analysis revealed that RPS27a knockdown by shRNA in both K562 and K562G01 cells inhibited the cell viability, induced cell cycle arrest at S and G2/M phases and increased cell apoptosis induced by imatinib. Combination of shRNA with imatinib treatment could lead to more cleaved PARP and cleaved caspase-3 expression in RPS27a knockdown cells. Further, it was found that phospho-ERK(p-ERK) and BCL-2 were down-regulated and P21 up-regulated in RPS27a knockdown cells. In conclusion, RPS27a promotes proliferation, regulates cell cycle progression and inhibits apoptosis of leukemia cells. It appears that drugs targeting RPS27a combining with tyrosine kinase inhibitor (TKI) might represent a novel therapy strategy in TKI resistant CML patients.
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Affiliation(s)
- Houcai Wang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Jing Yu
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Lixia Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Yuanyuan Xiong
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Shuying Chen
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Haiyan Xing
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Zheng Tian
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Kejing Tang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Hui Wei
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Qing Rao
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Min Wang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Jianxiang Wang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China.
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Yuan L, Wang J, Xiao H, Wu W, Wang Y, Liu X. MAPK signaling pathways regulate mitochondrial-mediated apoptosis induced by isoorientin in human hepatoblastoma cancer cells. Food Chem Toxicol 2012; 53:62-8. [PMID: 23220614 DOI: 10.1016/j.fct.2012.11.048] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Revised: 11/26/2012] [Accepted: 11/27/2012] [Indexed: 12/17/2022]
Abstract
Isoorientin (ISO) (CAS RN: 4261-42-1) is a flavonoid compound that can be extracted from several plant species, such as Phyllostachys pubescens, Patrinia, and Drosophyllum lusitanicum. ISO is able to induce apoptosis through mitochondrial dysfunction and inhibition of PI3K/Akt signaling pathway in HepG2 cells, however, the effects of ISO on MAPK signaling pathways remain unknown. The present study investigated the effects of ISO on this pathway, and the roles of MAPK kinases on mitochondrial-mediated apoptosis in HepG2 cells. The results showed that ISO induced cell death in a dose- and time-dependent manner, and induction apoptosis is main cause for ISO-induced cytotoxicity in HepG2 cells. ISO significantly inhibited the levels of ERK1/2 kinase and increased the expression of JNK and p38 kinases. Furthermore, U0126 (an ERK1/2 inhibitor) significantly enhanced the ISO-induced the Bax/Bcl-2 ratio, the release of cytochrome c to the cytosol fraction, and the levels of cleaved caspase-3. While SP600125 (a JNK inhibitor) and SB203580 (a p38 inhibitor) markedly prevented the expression of these proteins induced by ISO. Furthermore, the ROS inhibitor (NAC) notably promoted the inhibited effect of ISO on the ERK1/2 kinase. NAC also suppressed the p-JNK and p-p38, but failed to reverse the effects of ISO. These results demonstrated for the first time that ISO induces apoptosis in HepG2 cells through inactivating ERK1/2 kinase and activating JNK and p38 kinases, and ROS stimulated by ISO is able to activate the MAPK singaling pathway as the upstream signaling molecules. Initiating event of the mitochondrial-mediated apoptosis induced by ISO is MAPK signals.
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Affiliation(s)
- Li Yuan
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
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