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Kaniski AJ, Almahdi YA, Matti DI, McLaughlin AJ, Najem SM, Xhabija B. Spinosyn A exerts anti-tumorigenic effects on progesterone-sensitive ERα-positive breast cancer cells by modulating multiple signaling pathways. Biomed Pharmacother 2024; 171:116156. [PMID: 38266623 DOI: 10.1016/j.biopha.2024.116156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 01/02/2024] [Accepted: 01/11/2024] [Indexed: 01/26/2024] Open
Abstract
Breast cancer is one of the most common and deadly cancers in women worldwide. Current treatments for breast cancer have limitations, such as toxicity, resistance, and side effects. Therefore, there is a need to develop new and effective anti-cancer agents from natural sources. Spinosyn A (SPA) is a natural product derived from soil bacteria. SPA has been reported to have anti-parasitic, insecticidal, and anti-bacterial activities. However, its anti-cancer effects and mechanisms are not well understood. In this study, we investigated the effects of SPA on T47-D, estrogen receptor-positive breast cancer cells. We found that SPA inhibited cell proliferation and migration and induced apoptosis and cell cycle arrest. Flow cytometry and holographic imaging microscopy revealed that SPA activated MAPK and PI3K signaling pathways and altered cellular morphology. Finally, RNA-Seq analysis revealed that SPA treatment altered the expression of 1380 genes in T47-D cells, which were enriched in various biological processes and signaling pathways related to cell proliferation, cholesterol metabolism, growth factor activity, amino acid transport activity, extracellular matrix, PI3K-Akt signaling pathway, neuroactive ligand-receptor interaction, and PPAR signaling pathway. Our results suggest that SPA exerts multiple anti-cancer effects on T47-D cells by modulating multiple pathways and cellular processes involved in cell growth, survival, and motility. Our findings provide new insights into the molecular mechanisms of SPA action on breast cancer cells and its potential applications as a novel anti-cancer agent.
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Affiliation(s)
- Anthony J Kaniski
- College of Arts Sciences and Letters, Department of Natural Science, University of Michigan-Dearborn, Dearborn, MI 48128, USA
| | - Yazan A Almahdi
- College of Arts Sciences and Letters, Department of Natural Science, University of Michigan-Dearborn, Dearborn, MI 48128, USA
| | - Darena I Matti
- College of Arts Sciences and Letters, Department of Natural Science, University of Michigan-Dearborn, Dearborn, MI 48128, USA
| | - Aidan J McLaughlin
- College of Arts Sciences and Letters, Department of Natural Science, University of Michigan-Dearborn, Dearborn, MI 48128, USA
| | - Steven M Najem
- College of Engineering and Computer Science, University of Michigan-Dearborn, Dearborn, MI 48128, USA
| | - Besa Xhabija
- College of Arts Sciences and Letters, Department of Natural Science, University of Michigan-Dearborn, Dearborn, MI 48128, USA.
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2
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Szwed M, Michlewska S, Kania K, Szczęch M, Marczak A, Szczepanowicz K. New SDS-Based Polyelectrolyte Multicore Nanocarriers for Paclitaxel Delivery-Synthesis, Characterization, and Activity against Breast Cancer Cells. Cells 2023; 12:2052. [PMID: 37626862 PMCID: PMC10453607 DOI: 10.3390/cells12162052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/15/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
The low distribution of hydrophobic anticancer drugs in patients is one of the biggest limitations during conventional chemotherapy. SDS-based polyelectrolyte multicore nanocarriers (NCs) prepared according to the layer by layer (LbL) procedure can release paclitaxel (PTX), and selectively kill cancer cells. Our main objective was to verify the antitumor properties of PTX-loaded NCs and to examine whether the drug encapsulated in these NCs retained its cytotoxic properties. The cytotoxicity of the prepared nanosystems was tested on MCF-7 and MDA-MB-231 tumour cells and the non-cancerous HMEC-1 cell line in vitro. Confocal microscopy, spectrophotometry, spectrofluorimetry, flow cytometry, and RT PCR techniques were used to define the typical hallmarks of apoptosis. It was demonstrated that PTX encapsulated in the tested NCs exhibited similar cytotoxicity to the free drug, especially in the triple negative breast cancer model. Moreover, SDS/PLL/PTX and SDS/PLL/PGA/PTX significantly reduced DNA synthesis. In addition, PTX-loaded NCs triggered apoptosis and upregulated the transcription of Bax, AIF, cytochrome-c, and caspase-3 mRNA. Our data demonstrate that these novel polyelectrolyte multicore NCs coated with PLL or PLL/PGA are good candidates for delivering PTX. Our discoveries have prominent implications for the possible choice of newly synthesized, SDS-based polyelectrolyte multicore NCs in different anticancer therapeutic applications.
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Affiliation(s)
- Marzena Szwed
- Department of Medical Biophysics, Institute of Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143 St, 90-236 Lodz, Poland;
| | - Sylwia Michlewska
- Laboratory of Microscopic Imaging and Specialized Biological Techniques, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16 St, 90-237 Lodz, Poland;
| | - Katarzyna Kania
- Laboratory of Virology, Institute for Medical Biology, Polish Academy of Sciences, Lodowa 106 St, 93-232 Lodz, Poland;
| | - Marta Szczęch
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8 St, 30-239 Kraków, Poland; (M.S.); (K.S.)
| | - Agnieszka Marczak
- Department of Medical Biophysics, Institute of Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143 St, 90-236 Lodz, Poland;
| | - Krzysztof Szczepanowicz
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8 St, 30-239 Kraków, Poland; (M.S.); (K.S.)
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3
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Cheng X, Dong F, Li J, Zou Q, Liu X, He H, Zhang H, Lv X, Wu Y, Jiang X, Qin X. Synthesis, and biological evaluation of pyrazole matrine derivatives as an insecticide against Spodoptera frugiperda. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 194:105489. [PMID: 37532351 DOI: 10.1016/j.pestbp.2023.105489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 05/29/2023] [Accepted: 06/01/2023] [Indexed: 08/04/2023]
Abstract
As one of the major threats to global food security, Spodoptera frugiperda (S. frugiperda) is highly gaining consideration due to its severe damage. Matrine is a widely and effectively used botanical insecticide in controlling S.frugiperda but lacks a rapidly available effect. To further improved the insecticidal activity of matrine based on combination principles, this work synthesized five new pyrazole matrine derivatives (PMDs) using Michael addition and investigated insecticidal activity against 2nd instar larvae of S. frugiperda(in vivo) and its isolated cell(in vitro). Our result demonstrated that PMDs show higher pesticidal activity than that matrine in both in vitro and in vivo assays. The most toxic derivatives in vitro and in vivo are PMD-3 and PMD-1, with IC50 of 2.49 mM and LC50 of 22.76 mg/L respectively. This research also investigates the anti-proliferation mechanism of PMDs based on isolated cells. PMDs decrease mitochondria membrane potential, arrested cell cycle at the G2/M phase, and upregulated Caspase 3, Caspase 9, and Apaf-1 to induce Caspase-dependent apoptosis. For Caspase-independent apoptosis, AIF and Endo G were found to be upregulated. Besides, pro-apoptotic factors like p53, IBM-1, and anti-apoptotic factors like IAP were upregulated. Moreover, we supposed that there was a linkage between lysosomes and PMD-induced apoptosis according to increased apoptosis rate, activated lysosomes, and upregulated Cathepsin B. This research provides new ideas for the synthesis of matrine derivatives and further demonstrated the anti-proliferation mechanism of PMDs.
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Affiliation(s)
- Xingan Cheng
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs / Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Fangyun Dong
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs / Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan 512005, China
| | - Junjie Li
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs / Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Qiwen Zou
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs / Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Xin Liu
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs / Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Huiqing He
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs / Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Hanhui Zhang
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs / Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Xiaojing Lv
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs / Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Yuehua Wu
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs / Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Xuhong Jiang
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs / Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Xiangjing Qin
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences (CAS), Guangzhou 510301, China.
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Araújo RDS, Lopes MP, Viana TA, Bastos DSS, Machado-Neves M, Botina LL, Martins GF. Bioinsecticide spinosad poses multiple harmful effects on foragers of Apis mellifera. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:66923-66935. [PMID: 37099096 DOI: 10.1007/s11356-023-27143-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 04/17/2023] [Indexed: 05/25/2023]
Abstract
There are multifactorial causes for the recent decline in bee populations, which has resulted in compromised pollination and reduced biodiversity. Bees are considered one of the most important non-target insects affected by insecticides used in crop production. In the present study, we investigated the effects of acute oral exposure to spinosad on the survival, food consumption, flight behavior, respiration rate, activity of detoxification enzymes, total antioxidant capacity (TAC), brain morphology, and hemocyte count of Apis mellifera foragers. We tested six different concentrations of spinosad for the first two analyses, followed by LC50 (7.7 mg L-1) for other assays. Spinosad ingestion decreased survival and food consumption. Exposure to spinosad LC50 reduced flight capacity, respiration rate, and superoxide dismutase activity. Furthermore, this concentration increased glutathione S-transferase activity and the TAC of the brain. Notably, exposure to LC50 damaged mushroom bodies, reduced the total hemocyte count and granulocyte number, and increased the number of prohemocytes. These findings imply that the neurotoxin spinosad affects various crucial functions and tissues important for bee performance and that the toxic effects are complex and detrimental to individual homeostasis.
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Affiliation(s)
- Renan Dos Santos Araújo
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-000, Brazil.
| | - Marcos Pereira Lopes
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-000, Brazil
| | - Thaís Andrade Viana
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-000, Brazil
| | - Daniel Silva Sena Bastos
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-000, Brazil
| | - Mariana Machado-Neves
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-000, Brazil
| | - Lorena Lisbetd Botina
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-000, Brazil
| | - Gustavo Ferreira Martins
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-000, Brazil
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5
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Wang L, Pang Z, Chen Q, Song Z, Lu Y, Yang M, Huang J, Yu XQ, Wang X. Sublethal exposure to spinetoram impacts life history traits and dengue virus replication in Aedes aegypti. INSECT SCIENCE 2023; 30:486-500. [PMID: 36069276 DOI: 10.1111/1744-7917.13116] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/04/2022] [Accepted: 08/14/2022] [Indexed: 06/15/2023]
Abstract
Insecticides are anthropogenic environmental stressors and also a common stressor for mosquito vectors. However, the use of insecticides is often guided by short-term efficacy, and the sublethal effect on their target or nontarget species has long been ignored. Here, we analyzed how sublethal exposure of the promising vector-control bioinsecticide spinetoram to Aedes aegypti larvae alter adult performance and susceptibility to dengue virus (DENV) infection. We found that the surviving adult mosquitoes were significantly smaller and exhibited weaker blood-feeding capacity than control females, apart from the extended immature development period. In terms of reproductive potential, although the F0 generation produced a similar number of eggs and offspring during the first gonotrophic cycle, the survival rates of the F1 generations were significantly lower as compared to the control group, suggesting transgenerational sublethal effects on the F1 generation. Notably, surviving adult females had higher DENV-2 viral loads than the control group after spinetoram sublethal exposure. Mechanistically, transcriptomic analysis showed that inhibition of oxidative phosphorylation may function in stimulating DENV production in adult Ae. aegypti. In Aag2 cells, significant accumulation of apoptosis, mitochondrial reactive oxygen species production, and DENV-2 replication by spinetoram exposure consistently support our conclusion. Our study highlights the threat of sublethal spinetoram exposure on outbreaks of mosquito-borne viruses.
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Affiliation(s)
- Luoluo Wang
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Zhichang Pang
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Qi Chen
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Zhentao Song
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Yi Lu
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Meng Yang
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Jia Huang
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Xiao-Qiang Yu
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Xiaoyun Wang
- Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou, China
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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6
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Ren Y, He X, Yan X, Yang Y, Li Q, Yao T, Lu L, Peng L, Zou L. Unravelling the Polytoxicology of Chlorfenapyr on Non-Target HepG2 Cells: The Involvement of Mitochondria-Mediated Programmed Cell Death and DNA Damage. Molecules 2022; 27:molecules27175722. [PMID: 36080487 PMCID: PMC9457613 DOI: 10.3390/molecules27175722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 11/30/2022] Open
Abstract
Chlorfenapyr (CHL) is a type of insecticide with a wide range of insecticidal activities and unique targets. The extensive use of pesticides has caused an increase in potential risks to the environment and human health. However, the potential toxicity of CHL and its mechanisms of action on humans remain unclear. Therefore, human liver cells (HepG2) were used to investigate the cytotoxic effect and mechanism of toxicity of CHL at the cellular level. The results showed that CHL induced cellular toxicity in HepG2 cells and induced mitochondrial damage associated with reactive oxygen species (ROS) accumulation and mitochondrial calcium overload, ultimately leading to apoptosis and autophagy in HepG2 cells. Typical apoptotic changes occurred, including a decline in the mitochondrial membrane potential, the promotion of Bax/Bcl-2 expression causing the release of cyt-c into the cytosol, the activation of cas-9/-3, and the cleavage of PARP. The autophagic effects included the formation of autophagic vacuoles, accumulation of Beclin-1, transformation of LC3-II, and downregulation of p62. Additionally, DNA damage and cell cycle arrest were detected in CHL-treated cells. These results show that CHL induced cytotoxicity associated with mitochondria-mediated programmed cell death (PCD) and DNA damage in HepG2 cells.
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Affiliation(s)
- Yuanhang Ren
- Key Laboratory of Coarse Cereal Processing of Ministry of Agriculture and Rural Affairs, Chengdu 610106, China
- Sichuan Engineering and Technology Research Center of Coarse Cereal Industralization, Chengdu 610106, China
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Xuan He
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Xiyue Yan
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Yanting Yang
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Qiang Li
- Key Laboratory of Coarse Cereal Processing of Ministry of Agriculture and Rural Affairs, Chengdu 610106, China
- Sichuan Engineering and Technology Research Center of Coarse Cereal Industralization, Chengdu 610106, China
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Tian Yao
- Key Laboratory of Coarse Cereal Processing of Ministry of Agriculture and Rural Affairs, Chengdu 610106, China
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Lidan Lu
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
- Correspondence:
| | - Lianxin Peng
- Key Laboratory of Coarse Cereal Processing of Ministry of Agriculture and Rural Affairs, Chengdu 610106, China
- Sichuan Engineering and Technology Research Center of Coarse Cereal Industralization, Chengdu 610106, China
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Liang Zou
- Key Laboratory of Coarse Cereal Processing of Ministry of Agriculture and Rural Affairs, Chengdu 610106, China
- Sichuan Engineering and Technology Research Center of Coarse Cereal Industralization, Chengdu 610106, China
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
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Toopaang W, Bunnak W, Srisuksam C, Wattananukit W, Tanticharoen M, Yang YL, Amnuaykanjanasin A. Microbial polyketides and their roles in insect virulence: from genomics to biological functions. Nat Prod Rep 2022; 39:2008-2029. [PMID: 35822627 DOI: 10.1039/d1np00058f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covering: May 1966 up to January 2022Entomopathogenic microorganisms have potential for biological control of insect pests. Their main secondary metabolites include polyketides, nonribosomal peptides, and polyketide-nonribosomal peptide (PK-NRP) hybrids. Among these secondary metabolites, polyketides have mainly been studied for structural identification, pathway engineering, and for their contributions to medicine. However, little is known about the function of polyketides in insect virulence. This review focuses on the role of bacterial and fungal polyketides, as well as PK-NRP hybrids in insect infection and killing. We also discuss gene distribution and evolutional relationships among different microbial species. Further, the role of microbial polyketides and the hybrids in modulating insect-microbial symbiosis is also explored. Understanding the mechanisms of polyketides in insect pathogenesis, how compounds moderate the host-fungus interaction, and the distribution of PKS genes across different fungi and bacteria will facilitate the discovery and development of novel polyketide-derived bio-insecticides.
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Affiliation(s)
- Wachiraporn Toopaang
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand. .,Molecular and Biological Agricultural Sciences, Taiwan International Graduate Program, Academia Sinica and National Chung Hsing University, Taiwan.,Agricultural Biotechnology Research Center, Academia Sinica, Taipei 11529, Taiwan.
| | - Warapon Bunnak
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand.
| | - Chettida Srisuksam
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand.
| | - Wilawan Wattananukit
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand.
| | - Morakot Tanticharoen
- School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand
| | - Yu-Liang Yang
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei 11529, Taiwan. .,Biotechnology Center in Southern Taiwan, Academia Sinica, Tainan 711010, Taiwan
| | - Alongkorn Amnuaykanjanasin
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand.
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8
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Díaz-Resendiz KJG, Hermosillo-Escobedo AT, Ventura-Ramón GH, Toledo-Ibarra GA, Girón-Pérez DA, Bueno-Durán AY, Girón-Pérez MI. Death of guppy fish ( Poecilia reticulata) leukocytes induced by in vivo exposure to temephos and spinosad. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022; 32:701-711. [PMID: 32662663 DOI: 10.1080/09603123.2020.1791803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 07/01/2020] [Indexed: 06/11/2023]
Abstract
Temephos and spinosad are pesticides used for control of vector-borne diseases such as dengue, chikungunya and zika. However, the inadequate use of these substances has affected the health of non-target organisms. The aim of this study was to evaluate and compare, the effects of temephos and spinosad on leukocyte viability and death, using guppy fish (Poecilia reticulate) as a model organism. Guppies were exposed to temephos (10 mg/L) and spinosad (0.5 mg/L) for 7, 14, and 21 days. Afterwards, they were placed in pesticide-free fish tanks (7, 35, and 70 days) for recovery. The results showed that exposure to temephos caused leukocyte death, even at 35 days of recovery. Contrarily, the exposure to spinosad did not cause leukocyte death. This research show, for the first time, that a single dose of temephos causes apoptosis up to 56 days post-exposition, indicating that this pesticide induces chronic effects on immune response cells.
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Affiliation(s)
- K J G Díaz-Resendiz
- Unidad Especializada Laboratorio Nacional de Investigación para la Inocuidad Alimentaria (LANIIA)-Unidad Nayarit, Centro Nayarita de Innovación y Transferencia de Tecnología A.C., Tepic, México
- Laboratorio de Inmunotoxicología, Universidad Autónoma de Nayarit. Secretaría de Investigación y Posgrado, Tepic, México
| | - A T Hermosillo-Escobedo
- Laboratorio de Inmunotoxicología, Universidad Autónoma de Nayarit. Secretaría de Investigación y Posgrado, Tepic, México
| | - G H Ventura-Ramón
- Unidad Especializada Laboratorio Nacional de Investigación para la Inocuidad Alimentaria (LANIIA)-Unidad Nayarit, Centro Nayarita de Innovación y Transferencia de Tecnología A.C., Tepic, México
| | - G A Toledo-Ibarra
- Unidad Especializada Laboratorio Nacional de Investigación para la Inocuidad Alimentaria (LANIIA)-Unidad Nayarit, Centro Nayarita de Innovación y Transferencia de Tecnología A.C., Tepic, México
- Laboratorio de Inmunotoxicología, Universidad Autónoma de Nayarit. Secretaría de Investigación y Posgrado, Tepic, México
| | - D A Girón-Pérez
- Unidad Especializada Laboratorio Nacional de Investigación para la Inocuidad Alimentaria (LANIIA)-Unidad Nayarit, Centro Nayarita de Innovación y Transferencia de Tecnología A.C., Tepic, México
| | - A Y Bueno-Durán
- Unidad Especializada Laboratorio Nacional de Investigación para la Inocuidad Alimentaria (LANIIA)-Unidad Nayarit, Centro Nayarita de Innovación y Transferencia de Tecnología A.C., Tepic, México
| | - M I Girón-Pérez
- Unidad Especializada Laboratorio Nacional de Investigación para la Inocuidad Alimentaria (LANIIA)-Unidad Nayarit, Centro Nayarita de Innovación y Transferencia de Tecnología A.C., Tepic, México
- Laboratorio de Inmunotoxicología, Universidad Autónoma de Nayarit. Secretaría de Investigación y Posgrado, Tepic, México
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9
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Martelli F, Hernandes NH, Zuo Z, Wang J, Wong CO, Karagas NE, Roessner U, Rupasinghe T, Robin C, Venkatachalam K, Perry T, Batterham P, Bellen HJ. Low doses of the organic insecticide spinosad trigger lysosomal defects, elevated ROS, lipid dysregulation, and neurodegeneration in flies. eLife 2022; 11:e73812. [PMID: 35191376 PMCID: PMC8863376 DOI: 10.7554/elife.73812] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 01/28/2022] [Indexed: 12/14/2022] Open
Abstract
Large-scale insecticide application is a primary weapon in the control of insect pests in agriculture. However, a growing body of evidence indicates that it is contributing to the global decline in population sizes of many beneficial insect species. Spinosad emerged as an organic alternative to synthetic insecticides and is considered less harmful to beneficial insects, yet its mode of action remains unclear. Using Drosophila, we show that low doses of spinosad antagonize its neuronal target, the nicotinic acetylcholine receptor subunit alpha 6 (nAChRα6), reducing the cholinergic response. We show that the nAChRα6 receptors are transported to lysosomes that become enlarged and increase in number upon low doses of spinosad treatment. Lysosomal dysfunction is associated with mitochondrial stress and elevated levels of reactive oxygen species (ROS) in the central nervous system where nAChRα6 is broadly expressed. ROS disturb lipid storage in metabolic tissues in an nAChRα6-dependent manner. Spinosad toxicity is ameliorated with the antioxidant N-acetylcysteine amide. Chronic exposure of adult virgin females to low doses of spinosad leads to mitochondrial defects, severe neurodegeneration, and blindness. These deleterious effects of low-dose exposures warrant rigorous investigation of its impacts on beneficial insects.
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Affiliation(s)
- Felipe Martelli
- School of BioSciences, The University of MelbourneMelbourneAustralia
| | | | - Zhongyuan Zuo
- Department of Molecular and Human Genetics, Baylor College of MedicineHoustonUnited States
| | - Julia Wang
- Department of Molecular and Human Genetics, Baylor College of MedicineHoustonUnited States
| | - Ching-On Wong
- Department of Integrative Biology and Pharmacology, McGovern Medical School at the University of Texas Health Sciences CenterHoustonUnited States
| | - Nicholas E Karagas
- Department of Integrative Biology and Pharmacology, McGovern Medical School at the University of Texas Health Sciences CenterHoustonUnited States
| | - Ute Roessner
- School of BioSciences, The University of MelbourneMelbourneAustralia
| | | | - Charles Robin
- School of BioSciences, The University of MelbourneMelbourneAustralia
| | - Kartik Venkatachalam
- Department of Integrative Biology and Pharmacology, McGovern Medical School at the University of Texas Health Sciences CenterHoustonUnited States
| | - Trent Perry
- School of BioSciences, The University of MelbourneMelbourneAustralia
| | - Philip Batterham
- School of BioSciences, The University of MelbourneMelbourneAustralia
| | - Hugo J Bellen
- Department of Molecular and Human Genetics, Baylor College of MedicineHoustonUnited States
- Neurological Research Institute, Texas Children HospitalHoustonUnited States
- Howard Hughes Medical Institute, Baylor College of MedicineHoustonUnited States
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10
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Caglar S, Altay A, Kuzucu M, Caglar B. In Vitro Anticancer Activity of Novel Co(II) and Ni(II) Complexes of Non-steroidal Anti-inflammatory Drug Niflumic Acid Against Human Breast Adenocarcinoma MCF-7 Cells. Cell Biochem Biophys 2021; 79:729-746. [PMID: 33914261 DOI: 10.1007/s12013-021-00984-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2021] [Indexed: 12/16/2022]
Abstract
Herein, we report the synthesis, characterization and anticancer activity of six novel complexes of non-steroidal anti-inflammatory drug niflumic acid with Co(II) and Ni(II). In vitro cytotoxicity screening in MCF-7, HepG2 and HT-29 cancer cell lines showed that the complex 3 [Co(nif)2(met)(4-pic)] and complex 6 [Ni(nif)2(met)(4-pic)] among all the complexes exhibited the highest cytotoxicity against MCF-7 cells with IC50 values of 11.14 µM and, 41.47 µM, respectively. Besides, all the complexes exhibited significantly higher selectivity towards mouse fibroblast 3T3L1 cells. Further mechanistic studies with both complexes on MCF-7 cells revealed their cytotoxic action through the mitochondrial-dependent apoptotic pathway causing an increase oxidative/nitrosative stress, decrease in mitochondrial membrane potential (ΔΨm), inducing the multicaspase activation and arresting the cell cycle at S phase. q-PCR analysis resulted in an increase in the expression of the apoptotic marker proteins bax, p53 and caspase-3 and -8 in MCF-7 cells, but a decrease in the expression of antiapoptotic bcl-2 gene. Moreover, both complexes induced the apoptosis through the inhibition of PI3K/Akt signaling pathway by decreasing the expression of PI3K and increasing dephosphorylation form of Akt protein. These results provide a significant contribution to the explanation of the anticancer mechanisms of these complexes in MCF-7 cells.
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Affiliation(s)
- Sema Caglar
- Department of Chemistry, Faculty of Arts and Sciences, Erzincan Binali Yıldırım University, 24100, Erzincan, Turkey
| | - Ahmet Altay
- Department of Chemistry, Faculty of Arts and Sciences, Erzincan Binali Yıldırım University, 24100, Erzincan, Turkey.
| | - Mehmet Kuzucu
- Department of Biology, Faculty of Arts and Sciences, Erzincan Binali Yıldırım University, 24100, Erzincan, Turkey
| | - Bulent Caglar
- Department of Chemistry, Faculty of Arts and Sciences, Erzincan Binali Yıldırım University, 24100, Erzincan, Turkey
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11
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Nguyen J, Ghazali R, Batterham P, Perry T. Inhibiting the proteasome reduces molecular and biological impacts of the natural product insecticide, spinosad. PEST MANAGEMENT SCIENCE 2021; 77:3777-3786. [PMID: 33481333 DOI: 10.1002/ps.6290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 01/01/2021] [Accepted: 01/22/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Insecticide targets are often identified by mutations that confer resistance, but the intricacies of insecticide binding and downstream processes leading to insect death often remain obscure. Mutations in α6-like nicotinic acetylcholine receptor subunit genes have been associated with high levels of resistance to spinosad in many insect species, including Drosophila melanogaster. Here, we aimed to expand our understanding of the effects of the natural product insecticide spinosad on its protein target, the α6 subunit, using genetic tools available in D. melanogaster. RESULTS Functional, fluorescently tagged Dα6 subunits (Dα6YFP ) were developed to allow observation of the protein in vivo. Larvae expressing Dα6YFP were exposed to a sub-lethal concentration of spinosyn A (0.025 ppm) for 6 days, leading to a 64% reduction in fluorescence relative to unexposed larvae. Direct application of high doses of spinosyn A to dissected larval brains resulted in a visible 38.25% decrease in Dα6YFP within 20 min, indicating that degradation of the Dα6 protein occurred in response to spinosyn A exposure. Chemical inhibition of the proteasome system using the multiple myeloma treatment drug, PS-341 reduced loss of Dα6YFP in response to spinosyn A at the 20-min time point to 6.35%. In addition, in vivo administration of PS-341 prior to spinosad exposure reduced the effect of spinosad on larval activity. CONCLUSION Based on these data, we propose that exposure to spinosad leads to degradation of the α6-like target protein, a potentially novel element in the mode of action of spinosyns that may contribute to their toxicity towards insects. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Joseph Nguyen
- School of BioSciences, Bio21 Institute, The University of Melbourne, Parkville, Australia
| | - Razi Ghazali
- School of BioSciences, Bio21 Institute, The University of Melbourne, Parkville, Australia
| | - Philip Batterham
- School of BioSciences, Bio21 Institute, The University of Melbourne, Parkville, Australia
| | - Trent Perry
- School of BioSciences, Bio21 Institute, The University of Melbourne, Parkville, Australia
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12
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Ma J, Yan T, Bai Y, Ye M, Ma C, Ma X, Zhang L. TMEM100 negatively regulated by microRNA‑106b facilitates cellular apoptosis by suppressing survivin expression in NSCLC. Oncol Rep 2021; 46:185. [PMID: 34278505 DOI: 10.3892/or.2021.8136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 05/28/2021] [Indexed: 11/06/2022] Open
Abstract
Non‑small cell lung cancer (NSCLC) is a common malignant tumour. Nevertheless, the 5‑year survival rate of NSCLC patients remains poor. Thus, identifying critical factors involved in regulating the progression of NSCLC is important for providing potential treatment targets. In the present study, it was observed that transmembrane protein 100 (TMEM100) was significantly downregulated in NSCLC tissues compared with paired peritumoral tissues. Decreased TMEM100 expression was associated with poor clinical outcomes in NSCLC patients. Moreover, TMEM100 overexpression inhibited colony formation and facilitated apoptosis by suppressing survivin expression in NSCLC cells, whereas TMEM100 knockdown had the opposite effect. In addition, microRNA (miR)‑106b, a miR with controversial roles in different human cancers, was upregulated in NSCLC and directly downregulated TMEM100 expression. The roles of miR‑106b in cell survival were mitigated by the restoration of TMEM100. The aforementioned results indicated that TMEM100 induced cell apoptosis and inhibited cell survival by serving as a tumour suppressor and that miR‑106b‑mitigatedTMEM100 expression defined a potentially oncogenic pathway in NSCLC.
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Affiliation(s)
- Jun Ma
- Eye Institute, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, P.R. China
| | - Tingting Yan
- Department of Breast Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Yongrui Bai
- Department of Radiation Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Ming Ye
- Department of Radiation Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Chunhui Ma
- Department of Orthopedic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai 200080, P.R. China
| | - Xiumei Ma
- Department of Radiation Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Lei Zhang
- Department of Radiation Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
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13
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Binuclear silver(I) complexes with the non-steroidal anti-inflammatory drug tolfenamic acid: Synthesis, characterization, cytotoxic activity and evaluation of cellular mechanism of action. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115189] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Sazonova EV, Kopeina GS, Imyanitov EN, Zhivotovsky B. Platinum drugs and taxanes: can we overcome resistance? Cell Death Discov 2021; 7:155. [PMID: 34226520 PMCID: PMC8257727 DOI: 10.1038/s41420-021-00554-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/05/2021] [Accepted: 06/12/2021] [Indexed: 02/06/2023] Open
Abstract
Cancer therapy is aimed at the elimination of tumor cells and acts via the cessation of cell proliferation and induction of cell death. Many research publications discussing the mechanisms of anticancer drugs use the terms "cell death" and "apoptosis" interchangeably, given that apoptotic pathways are the most common components of the action of targeted and cytotoxic compounds. However, there is sound evidence suggesting that other mechanisms of drug-induced cell death, such as necroptosis, ferroptosis, autophagy, etc. may significantly contribute to the fate of cancer cells. Molecular cross-talks between apoptotic and nonapoptotic death pathways underlie the successes and the failures of therapeutic interventions. Here we discuss the nuances of the antitumor action of two groups of the widely used anticancer drugs, i.e., platinum salts and taxane derivatives. The available data suggest that intelligent interference with the choice of cell death pathways may open novel opportunities for cancer treatment.
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Affiliation(s)
- Elena V Sazonova
- Faculty of Medicine, MV Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Gelina S Kopeina
- Faculty of Medicine, MV Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Evgeny N Imyanitov
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St.-Petersburg, 197758, Russia.
- Department of Medical Genetics, St.-Petersburg Pediatric Medical University, St.-Petersburg, 194100, Russia.
- Department of Oncology, I.I. Mechnikov North-Western Medical University, St.-Petersburg, 195067, Russia.
| | - Boris Zhivotovsky
- Faculty of Medicine, MV Lomonosov Moscow State University, Moscow, 119991, Russia.
- Division of Toxicology, Institute of Environmental Medicine, Karolinska Institute, Box 210, 17177, Stockholm, Sweden.
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15
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Chen C, Tang Y, Qu WD, Han X, Zuo JB, Cai QY, Xu G, Song YX, Ke XX. Evaluation of clinical value and potential mechanism of MTFR2 in lung adenocarcinoma via bioinformatics. BMC Cancer 2021; 21:619. [PMID: 34039308 PMCID: PMC8157440 DOI: 10.1186/s12885-021-08378-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 05/17/2021] [Indexed: 01/17/2023] Open
Abstract
Background Mitochondrial fission regulator 2 (MTFR2) was involved in the progression and development of various cancers. However, the relationship between MTFR2 with lung adenocarcinoma (LUAD) had not been reported. Herein, this study analyzed the clinical significance and potential mechanisms of MTFR2 in LUAD via bioinformatics tools. Results We found that the level of MTFR2 was increased, and correlated with sex, age, smoking history, neoplasm staging, histological subtype and TP53 mutation status in LUAD patients. Kaplan-Meier survival analysis showed LUAD patients with increased MTFR2 had a poor prognosis. In addition, univariate COX regression analysis showed neoplasm staging, T stage, distant metastasis and MTFR2 level were risk factors for the prognosis of LUAD. A total of 1127 genes were coexpressed with MTFR2, including 840 positive and 208 negative related genes. KEGG and GSEA found that MTFR2 participated in the progression of LUAD by affecting cell cycle, DNA replication, homologous recombination, p53 signaling pathway and other mechanisms. The top 10 coexpressed genes, namely CDK1, CDC20, CCNB1, PLK1, CCNA2, AURKB, CCNB2, BUB1B, MAD2L1 and BUB1 were highly expressed, and were associated with poor prognosis in LUAD. Conclusions Consequently, we elucidated MTFR2 was a biomarker for diagnosis and poor prognosis in LUAD, and might participate in the progression of LUAD via affecting cell cycle, DNA replication, homologous recombination and p53 signaling pathway. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08378-3.
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Affiliation(s)
- Cheng Chen
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Yang Tang
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Wen-Dong Qu
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Xu Han
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Jie-Bin Zuo
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Qing-Yong Cai
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Gang Xu
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Yong-Xiang Song
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China.
| | - Xi-Xian Ke
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China.
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Piao Z, Song L, Yao L, Zhang L, Lu Y. Schisandrin Restores the Amyloid β-Induced Impairments on Mitochondrial Function, Energy Metabolism, Biogenesis, and Dynamics in Rat Primary Hippocampal Neurons. Pharmacology 2021; 106:254-264. [PMID: 33691319 DOI: 10.1159/000507818] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 04/08/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Schisandrin which is derived from Schisandra chinensis has shown multiple pharmacological effects on various diseases including Alzheimer's disease (AD). It is demonstrated that mitochondrial dysfunction plays an essential role in the pathogenesis of neurodegenerative disorders. OBJECTIVE Our study aims to investigate the effects of schisandrin on mitochondrial functions and metabolisms in primary hippocampal neurons. METHODS In our study, rat primary hippocampal neurons were isolated and treated with indicated dose of amyloid β1-42 (Aβ1-42) oligomer to establish a cell model of AD in vitro. Schisandrin (2 μg/mL) was further subjected to test its effects on mitochondrial function, energy metabolism, mitochondrial biogenesis, and dynamics in the Aβ1-42 oligomer-treated neurons. RESULTS AND CONCLUSIONS Our findings indicated that schisandrin significantly alleviated the Aβ1-42 oligomer-induced loss of mitochondrial membrane potential and impaired cytochrome c oxidase activity. Additionally, the opening of mitochondrial permeability transition pore and release of cytochrome c were highly restricted with schisandrin treatment. Alterations in cell viability, ATP production, citrate synthase activity, and the expressions of glycolysis-related enzymes demonstrated the relief of defective energy metabolism in Aβ-treated neurons after the treatment of schisandrin. For mitochondrial biogenesis, elevated expression of peroxisome proliferator-activated receptor γ coactivator along with promoted mitochondrial mass was found in schisandrin-treated cells. The imbalance in the cycle of fusion and fission was also remarkably restored by schisandrin. In summary, this study provides novel mechanisms for the protective effect of schisandrin on mitochondria-related functions.
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Affiliation(s)
- Zhongyuan Piao
- Department of Neurology, Huizhou Third People's Hospital, Guangzhou Medical University, Huizhou, China
| | - Lin Song
- School of Life Sciences, Huizhou University, Huizhou, China,
| | - Lifen Yao
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Limei Zhang
- Department of Obstetrics and Gynecology, Huizhou Third People's Hospital, Huizhou, China
| | - Yichan Lu
- Department of Chinese Medicine, Dalian Maternity and Child Health Care Hospital, Dalian, China
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17
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Campos JM, Martínez LC, Plata-Rueda A, Weigand W, Zanuncio JC, Serrão JE. Insecticide potential of two saliva components of the predatory bug Podisus nigrispinus (Heteroptera: Pentatomidae) against Spodoptera frugiperda (Lepidoptera: Noctuidae) caterpillars. TOXIN REV 2021. [DOI: 10.1080/15569543.2020.1868008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | | | - Angelica Plata-Rueda
- Departamento de Entomologia/BIOAGRO, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Wolfgang Weigand
- Friedrich-Schiller-Universitaet Jena Institut fuer Anorganische und Analytische Chemie, Jena, Germany
| | - José Cola Zanuncio
- Departamento de Entomologia/BIOAGRO, Universidade Federal de Viçosa, Viçosa, Brazil
| | - José Eduardo Serrão
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Brazil
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A Compressive Review about Taxol ®: History and Future Challenges. Molecules 2020; 25:molecules25245986. [PMID: 33348838 PMCID: PMC7767101 DOI: 10.3390/molecules25245986] [Citation(s) in RCA: 152] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 12/17/2022] Open
Abstract
Taxol®, which is also known as paclitaxel, is a chemotherapeutic agent widely used to treat different cancers. Since the discovery of its antitumoral activity, Taxol® has been used to treat over one million patients, making it one of the most widely employed antitumoral drugs. Taxol® was the first microtubule targeting agent described in the literature, with its main mechanism of action consisting of the disruption of microtubule dynamics, thus inducing mitotic arrest and cell death. However, secondary mechanisms for achieving apoptosis have also been demonstrated. Despite its wide use, Taxol® has certain disadvantages. The main challenges facing Taxol® are the need to find an environmentally sustainable production method based on the use of microorganisms, increase its bioavailability without exerting adverse effects on the health of patients and minimize the resistance presented by a high percentage of cells treated with paclitaxel. This review details, in a succinct manner, the main aspects of this important drug, from its discovery to the present day. We highlight the main challenges that must be faced in the coming years, in order to increase the effectiveness of Taxol® as an anticancer agent.
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19
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Bastarache P, Wajnberg G, Dumas P, Chacko S, Lacroix J, Crapoulet N, Moffat CE, Morin P. Transcriptomics-Based Approach Identifies Spinosad-Associated Targets in the Colorado Potato Beetle, Leptinotarsa decemlineata. INSECTS 2020; 11:insects11110820. [PMID: 33233355 PMCID: PMC7700309 DOI: 10.3390/insects11110820] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 12/13/2022]
Abstract
Simple Summary The Colorado potato beetle Leptinotarsa decemlineata is a potato pest that can cause substantial damages to potato crops worldwide. Multiple approaches have been leveraged to control this pest including the use of a variety of insecticides. Resistance to different insecticides aimed at controlling this insect has been reported and much work has been conducted in recent years to elucidate the underlying molecular changes associated with insecticide resistance in L. decemlineata. However, information is sparse regarding the molecular impact associated with spinosad treatment in this insect pest. The current study thus explores transcriptional changes associated with spinosad response in L. decemlineata exposed to this compound using high-throughput sequencing. Results presented show multiple transcripts of interest that exhibit differential expression in spinosad-treated L. decemlineata and provide a preliminary footprint of transcripts affected by this insecticide in this potato pest. Select targets identified in this signature should be further explored in follow-up studies to better characterize their contribution, if any, in the process of spinosad resistance. Abstract The Colorado potato beetle Leptinotarsa decemlineata is an insect pest that threatens potato crops globally. The primary method to control its damage on potato plants is the use of insecticides, including imidacloprid, chlorantraniliprole and spinosad. However, insecticide resistance has been frequently observed in Colorado potato beetles. The molecular targets and the basis of resistance to imidacloprid and chlorantraniliprole have both been previously quantified. This work was undertaken with the overarching goal of better characterizing the molecular changes associated with spinosad exposure in this insect pest. Next-generation sequencing was conducted to identify transcripts that were differentially expressed between Colorado potato beetles exposed to spinosad versus control insects. Results showed several transcripts that exhibit different expression levels between the two conditions, including ones coding for venom carboxylesterase-6, chitinase 10, juvenile hormone esterase and multidrug resistance-associated protein 4. In addition, several microRNAs, such as miR-12-3p and miR-750-3p, were also modulated in the investigated conditions. Overall, this work reveals a molecular footprint underlying spinosad response in Colorado potato beetles and provides novel leads that could be targeted as part of RNAi-based approaches to control this insect pest.
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Affiliation(s)
- Pierre Bastarache
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, NB E1A 3E9, Canada; (P.B.); (P.D.)
| | - Gabriel Wajnberg
- Atlantic Cancer Research Institute, Pavillon Hôtel-Dieu 35 Providence Street, Moncton, NB E1C 8X3, Canada; (G.W.); (S.C.); (J.L.); (N.C.)
| | - Pascal Dumas
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, NB E1A 3E9, Canada; (P.B.); (P.D.)
| | - Simi Chacko
- Atlantic Cancer Research Institute, Pavillon Hôtel-Dieu 35 Providence Street, Moncton, NB E1C 8X3, Canada; (G.W.); (S.C.); (J.L.); (N.C.)
| | - Jacynthe Lacroix
- Atlantic Cancer Research Institute, Pavillon Hôtel-Dieu 35 Providence Street, Moncton, NB E1C 8X3, Canada; (G.W.); (S.C.); (J.L.); (N.C.)
| | - Nicolas Crapoulet
- Atlantic Cancer Research Institute, Pavillon Hôtel-Dieu 35 Providence Street, Moncton, NB E1C 8X3, Canada; (G.W.); (S.C.); (J.L.); (N.C.)
| | - Chandra E. Moffat
- Fredericton Research and Development Centre, Agriculture and Agri-Food Canada, 850 Lincoln Road, Fredericton, NB E3B 4Z7, Canada;
| | - Pier Morin
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, NB E1A 3E9, Canada; (P.B.); (P.D.)
- Correspondence: ; Tel.: +1-(506)-858-4355; Fax: +1-(506)-858-4541
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Bonora M, Patergnani S, Ramaccini D, Morciano G, Pedriali G, Kahsay AE, Bouhamida E, Giorgi C, Wieckowski MR, Pinton P. Physiopathology of the Permeability Transition Pore: Molecular Mechanisms in Human Pathology. Biomolecules 2020; 10:biom10070998. [PMID: 32635556 PMCID: PMC7408088 DOI: 10.3390/biom10070998] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 06/29/2020] [Accepted: 07/02/2020] [Indexed: 12/13/2022] Open
Abstract
Mitochondrial permeability transition (MPT) is the sudden loss in the permeability of the inner mitochondrial membrane (IMM) to low-molecular-weight solutes. Due to osmotic forces, MPT is paralleled by a massive influx of water into the mitochondrial matrix, eventually leading to the structural collapse of the organelle. Thus, MPT can initiate outer-mitochondrial-membrane permeabilization (MOMP), promoting the activation of the apoptotic caspase cascade and caspase-independent cell-death mechanisms. The induction of MPT is mostly dependent on mitochondrial reactive oxygen species (ROS) and Ca2+, but is also dependent on the metabolic stage of the affected cell and signaling events. Therefore, since its discovery in the late 1970s, the role of MPT in human pathology has been heavily investigated. Here, we summarize the most significant findings corroborating a role for MPT in the etiology of a spectrum of human diseases, including diseases characterized by acute or chronic loss of adult cells and those characterized by neoplastic initiation.
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Affiliation(s)
- Massimo Bonora
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy; (S.P.); (D.R.); (G.M.); (G.P.); (A.E.K.); (E.B.); (C.G.)
- Correspondence: (M.B.); (P.P.)
| | - Simone Patergnani
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy; (S.P.); (D.R.); (G.M.); (G.P.); (A.E.K.); (E.B.); (C.G.)
| | - Daniela Ramaccini
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy; (S.P.); (D.R.); (G.M.); (G.P.); (A.E.K.); (E.B.); (C.G.)
| | - Giampaolo Morciano
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy; (S.P.); (D.R.); (G.M.); (G.P.); (A.E.K.); (E.B.); (C.G.)
- Maria Cecilia Hospital, GVM Care & Research, Via Corriera 1, Cotignola, 48033 Ravenna, Italy
| | - Gaia Pedriali
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy; (S.P.); (D.R.); (G.M.); (G.P.); (A.E.K.); (E.B.); (C.G.)
- Maria Cecilia Hospital, GVM Care & Research, Via Corriera 1, Cotignola, 48033 Ravenna, Italy
| | - Asrat Endrias Kahsay
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy; (S.P.); (D.R.); (G.M.); (G.P.); (A.E.K.); (E.B.); (C.G.)
| | - Esmaa Bouhamida
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy; (S.P.); (D.R.); (G.M.); (G.P.); (A.E.K.); (E.B.); (C.G.)
| | - Carlotta Giorgi
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy; (S.P.); (D.R.); (G.M.); (G.P.); (A.E.K.); (E.B.); (C.G.)
| | - Mariusz R. Wieckowski
- Laboratory of Mitochondrial Biology and Metabolism, Nencki Institute of Experimental Biology of the Polish Academy of Sciences, 3 Pasteur Str., 02-093 Warsaw, Poland;
| | - Paolo Pinton
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy; (S.P.); (D.R.); (G.M.); (G.P.); (A.E.K.); (E.B.); (C.G.)
- Maria Cecilia Hospital, GVM Care & Research, Via Corriera 1, Cotignola, 48033 Ravenna, Italy
- Correspondence: (M.B.); (P.P.)
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Zhang P, Zhao S, Lu X, Shi Z, Liu H, Zhu B. Metformin enhances the sensitivity of colorectal cancer cells to cisplatin through ROS-mediated PI3K/Akt signaling pathway. Gene 2020; 745:144623. [PMID: 32222530 DOI: 10.1016/j.gene.2020.144623] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 02/08/2020] [Accepted: 03/24/2020] [Indexed: 02/07/2023]
Abstract
Metformin and cisplatin have been widely studied as antitumor agents. However, the effect of metformin combined with cisplatin has not been investigated in colorectal cancer (CRC) cells. This study was aimed to explore the effect of metformin or/and cisplatin on cell viability, apoptosis, and the related signaling pathways in CRC SW480 and SW620 cells. We found that metformin or cisplatin inhibited cell viability of SW480 and SW620 cells in a concentration- and time-dependent manner. Furthermore, metformin combined with cisplatin obviously inhibited cell viability, decreased colony formation, induced apoptosis, mediated cleavage of caspase-9, caspase-3 and PARP, activated mitochondrial membrane potential, downregulated Mcl-1 and Bcl-2 expression, upregulated Bak and Bax expression, and increased reactive oxygen species (ROS) production, compared to the individual agent in SW480 and SW620 cells, which were attenuated by N-acetyl-L-cysteine (NAC), a ROS scavenger. Moreover, NAC could recover the downregulation of p-PI3K and p-Akt treated with combination of metformin and cisplatin, which subsequently activated the PI3K/Akt signaling pathway. Taken together, our results demonstrated that metformin enhanced the sensitivity of CRC cells to cisplatin through ROS-mediated PI3K/Akt signaling pathway.
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Affiliation(s)
- Pei Zhang
- School of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceuticals, Bengbu 233030, Anhui, China
| | - Surong Zhao
- School of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceuticals, Bengbu 233030, Anhui, China
| | - Xingyue Lu
- School of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceuticals, Bengbu 233030, Anhui, China
| | - Zongfen Shi
- School of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceuticals, Bengbu 233030, Anhui, China
| | - Hao Liu
- School of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceuticals, Bengbu 233030, Anhui, China.
| | - Bing Zhu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui, China.
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Santos VSV, Pereira BB. Properties, toxicity and current applications of the biolarvicide spinosad. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2019; 23:13-26. [PMID: 31709913 DOI: 10.1080/10937404.2019.1689878] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Characterized as a highly valuable bioactive natural product, spinosad is a pesticide with a complex chemical structure, composed of spinosyn A and D, molecules synthesized by the actinomycete Saccharopolyspora spinosa. The larvicidal activity of spinosad was postulated to be a promising approach to combat crop pests and control species responsible to transmit mosquito-borne illness, including Aedes aegypti. Although initially deemed as relatively safe for non-target organisms and highly effective against insects and crop pests, recent studies focused on the toxicity profile detected the occurrence of side effects in different living species. Thus, the present review was undertaken to describe the properties and characteristics of spinosad. In addition to indicating potential adverse effects on living organisms, alternative uses of the biopesticide as a mixture with different compounds are provided.
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Affiliation(s)
- Vanessa Santana Vieira Santos
- Department of Environmental Health, Laboratory of Environmental Health, Santa Mônica Campus, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
- Department of Biotechnology, Umuarama Campus, Federal University of Uberlândia, Institute of Biotechnology, Uberlândia, Minas Gerais, Brazil
| | - Boscolli Barbosa Pereira
- Department of Environmental Health, Laboratory of Environmental Health, Santa Mônica Campus, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
- Department of Biotechnology, Umuarama Campus, Federal University of Uberlândia, Institute of Biotechnology, Uberlândia, Minas Gerais, Brazil
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23
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Tan S, Bian X, Wu B, Chen X. RASSF6 Is Downregulated In Human Bladder Cancers And Regulates Doxorubicin Sensitivity And Mitochondrial Membrane Potential Via The Hippo Signaling Pathway. Onco Targets Ther 2019; 12:9189-9200. [PMID: 31807003 PMCID: PMC6842287 DOI: 10.2147/ott.s217041] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 09/25/2019] [Indexed: 12/19/2022] Open
Abstract
Background The present study aimed to investigate the clinicopathological significance and biological roles of RASSF6 in human bladder cancers. Materials and methods Immunohistochemistry and Western blots were used to examine the protein expression of RASSF6 in bladder cancer tissues. Biological roles of RASSF6 were examined using MTT, colony formation assay, Matrigel invasion assay, cell cycle analysis, AnnexinV/PI staining and JC-1 staining. Western blot analysis was used to examine the potential mechanism. Results We found that RASSF6 was downregulated in 73 of 138 bladder cancer specimens, which correlated with advanced stages. RASSF6 overexpression decreased the cell growth rate and inhibited invasion ability in T24 cell line. Downregulation of RASSF6 using siRNA increased the cell proliferation rate and promoted invasion in 5637 cell line. Cell cycle studies showed that RASSF6 overexpression suppressed the process of cell cycle progression. RASSF6 overexpression also increased the cellular response to doxorubicin (DOX) treatment. AnnexinV/PI staining showed that RASSF6 overexpression promoted DOX-induced apoptosis with increased cytochrome c and cleavage of caspase-3 and caspase-9. We also showed that RASSF6 overexpression downregulated the mitochondrial membrane potential, while RASSF6 depletion showed the opposite effect. Western blot analysis demonstrated that RASSF6 overexpression repressed p-Rb and Bcl-xL while upregulating p21 expression. In addition, we found that RASSF6 overexpression affected the Hippo signaling pathway by downregulating YAP. Depletion of YAP downregulated Bcl-xL expression and abolished the effect of RASSF6 on Bcl-xL. Depletion of YAP also upregulated the level of apoptosis and downregulated mitochondrial membrane potential. YAP siRNA abolished the effects of RASSF6 on DOX-induced apoptosis and loss of mitochondrial membrane potential. Conclusion Taken together, our results showed that RASSF6 was downregulated in bladder cancers. RASSF6 inhibited cell proliferation and invasion, as well as the progression of cancer, by regulating DOX sensitivity and mitochondrial membrane potential, possibly via the Hippo signaling pathway.
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Affiliation(s)
- Shutao Tan
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
| | - Xiaobo Bian
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
| | - Bin Wu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
| | - Xiaonan Chen
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
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24
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Shu B, Zhang J, Zeng J, Cui G, Zhong G. Stability of selected reference genes in Sf9 cells treated with extrinsic apoptotic agents. Sci Rep 2019; 9:14147. [PMID: 31578389 PMCID: PMC6775146 DOI: 10.1038/s41598-019-50667-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 09/17/2019] [Indexed: 12/16/2022] Open
Abstract
As a tightly controlled cell death process, apoptosis eliminates unwanted cells and plays a vital role in multicellular organisms. Previous study have demonstrated that apoptosis occurred in Spodoptera frugiperda cultured Sf9 cells, which triggered by diverse apoptotic stimuli, including azadirachtin, camptothecin and ultraviolet. Due to its simplicity, high sensitivity and reliable specificity, RT-qPCR has been used widespread for analyzing expression levels of target genes. However, the selection of reference genes influences the accuracy of results profoundly. In this study, eight genes were selected for analyses of their suitability as references for normalizing RT-PCR data in Sf9 cells treated with apoptotic agents. Five algorithms, including NormFinder, BestKeeper, Delta Ct method, geNorm, and RefFinder, were used for stability ranking. Based on comprehensively analysis, the expression stability of selected genes varied in cells with different apoptotic stimuli. The best choices for cells under different apoptosis conditions were listed: EF2 and EF1α for cells treated with azadirachtin; RPL13 and RPL3 for cells treated with camptothecin; EF1α and β-1-TUB for cells irradiated under ultraviolet; and EF1α and EF2 for combinational analyses of samples. Our results not only facilitate a more accurate normalization for RT-qPCR data, but also provide the reliable assurance for further studies of apoptotic mechanisms under different stimulus in Sf9 cells.
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Affiliation(s)
- Benshui Shu
- Guangzhou City Key Laboratory of Subtropical Fruit Trees Outbreak Control, Zhongkai University of Agriculture and Engineering, Guangzhou, China.,Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, China.,Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Jingjing Zhang
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, China.,Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Jie Zeng
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, China.,Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Gaofeng Cui
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, China.,Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Guohua Zhong
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, China. .,Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China.
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25
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Yooboon T, Kuramitsu K, Bullangpoti V, Kainoh Y, Furukawa S. Cytotoxic effects of β-asarone on Sf9 insect cells. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2019; 102:e21596. [PMID: 31270854 DOI: 10.1002/arch.21596] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
β-Asarone is the predominant component of the essential oil of rhizomes of Acorus calamus Linn ( Sweet flag). Although rhizome extracts from this plant have long been used for insect pest control, their cytotoxic effects on insect cells are not well understood. In this study, we evaluated the potency of β-asarone as a natural insecticide by using a Spodoptera frugiperda cell line (Sf9). To assess the cytotoxic effects of β-asarone on Sf9 cells, we observed morphologic changes in treated cells and performed a cell proliferation assay and a DNA fragmentation assay. After 24 and 48 h of treatment with β-asarone, the proliferation of the Sf9 cells was inhibited in a dose-dependent manner, with IC50 values of 0.558 mg/ml at 24 h and 0.253 mg/ml at 48 h. Morphologic changes in β-asarone-treated cells were typical of apoptosis and included loss of adhesion, cell shrinkage, and small apoptotic bodies. The DNA laddering present in β-asarone-treated SF9 cells and annexin V assay confirmed that this compound can induce apoptosis in insect cells. Together, these findings suggest that apoptosis induction may be one mechanism through which β-asarone inhibits the proliferation of insect cells and thus exerts insecticidal effects.
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Affiliation(s)
- Thitaree Yooboon
- Department of Zoology, Animal Toxicology and Physiology Specialty Research Unit, Faculty of Science, Kasetsart University, Bangkok, Thailand
- Laboratory of Applied Entomology and Zoology, Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kazumu Kuramitsu
- Laboratory of Applied Entomology and Zoology, Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Vasakorn Bullangpoti
- Department of Zoology, Animal Toxicology and Physiology Specialty Research Unit, Faculty of Science, Kasetsart University, Bangkok, Thailand
| | - Yooichi Kainoh
- Laboratory of Applied Entomology and Zoology, Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Seiichi Furukawa
- Laboratory of Applied Entomology and Zoology, Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
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26
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Araujo RDS, Lopes MP, Barbosa WF, Gonçalves WG, Fernandes KM, Martins GF, Tavares MG. Spinosad-mediated effects on survival, overall group activity and the midgut of workers of Partamona helleri (Hymenoptera: Apidae). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 175:148-154. [PMID: 30897413 DOI: 10.1016/j.ecoenv.2019.03.050] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 03/10/2019] [Accepted: 03/12/2019] [Indexed: 06/09/2023]
Abstract
Populations of stingless bees have declined around the world and pesticides have been indicated as one of the possible causes of this decrease. Spinosad, which is synthesized from the fermentation process produced by the soil actinomycete Saccharopolyspora spinosa, is one of the most used bioinsecticides today. This study aimed to evaluate the possible effects of spinosad (formulation) on survival, general group activity and the processes of autophagy, apoptosis and oxidative stress in two organs (midgut and brain) of workers of Partamona helleri, after 24 h of oral exposure. Workers were orally exposed to different concentrations of spinosad. The concentration (8.16 × 10-3 mg a.i./mL) that led to the mortality of approximately half the number of treated bees was considered LC50 and was used in behavior, histology and immunofluorescence bioassays. The results revealed that bee survival was substantially reduced with increasing spinosad concentrations. The LC50 of the bioinsecticide compromised general group activity, caused morphological alterations in the midgut and intensified the processes of autophagy, apoptosis and oxidative stress in this organ. The brain, on the other hand, did not present significant alterations under the tested conditions. The data obtained demonstrate, therefore, that spinosad negatively affects individual survival, general group activity and the midgut epithelium of P. helleri.
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Affiliation(s)
- Renan Dos Santos Araujo
- Programa de Pós-graduação em Biologia Celular e Estrutural, Departamento de Biologia Geral, Universidade Federal de Viçosa, 36570-000, Viçosa (MG), Brazil.
| | - Marcos Pereira Lopes
- Programa de Pós-graduação em Biologia Celular e Estrutural, Departamento de Biologia Geral, Universidade Federal de Viçosa, 36570-000, Viçosa (MG), Brazil.
| | - Wagner Faria Barbosa
- Departamento de Entomologia, Universidade Federal de Viçosa, 36570-000, Viçosa (MG), Brazil.
| | | | - Kenner Morais Fernandes
- Departamento de Biologia Geral, Universidade Federal de Viçosa, 36570-000, Viçosa (MG), Brazil.
| | | | - Mara Garcia Tavares
- Departamento de Biologia Geral, Universidade Federal de Viçosa, 36570-000, Viçosa (MG), Brazil.
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Fernandes KM, Tomé HVV, Miranda FR, Gonçalves WG, Pascini TV, Serrão JE, Martins GF. Aedes aegypti larvae treated with spinosad produce adults with damaged midgut and reduced fecundity. CHEMOSPHERE 2019; 221:464-470. [PMID: 30654260 DOI: 10.1016/j.chemosphere.2019.01.068] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 01/08/2019] [Accepted: 01/09/2019] [Indexed: 06/09/2023]
Abstract
The mosquito Aedes aegypti is the main vector of Dengue, Chikungunya, Zika, and yellow fever viruses, which are responsible for high human morbidity and mortality. The fight against these pathogens is mainly based on the control of the insect vector with the use of insecticides. Among insecticides, spinosad bioinsecticide is efficient against A. aegypti larvae and may be an alternative for vector control. Here, we investigate the sublethal effects of spinosad during midgut metamorphosis of A. aegypti females and its cumulative effects on blood acquisition capacity and fecundity in adults. We studied the midgut because it is an important model organ directly related to blood acquisition and digestion. Treatment of larvae with spinosad induced oxidative stress, apoptosis, and damage to the midgut cells at all stages of development and in adults. There was a reduction in the number of proliferating cells and the number of enteroendocrine cells in treated individuals. In addition, damage caused by spinosad led to a reduction in oviposition and egg viability of A. aegypti females. Finally, the exposure of mosquito larvae to sublethal concentrations of spinosad interfered with the development of the midgut, arresting the blood digestion and reproduction of adult females with blood digestion and reproduction difficulties.
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Affiliation(s)
- Kenner Morais Fernandes
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil; Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil
| | | | - Franciane Rosa Miranda
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil
| | | | - Tales Vicari Pascini
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil
| | - José Eduardo Serrão
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil
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Li S, Xu Z, Xia J, Qin G, Sang N. Sulfur dioxide induces apoptosis via reactive oxygen species generation in rat cardiomyocytes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:8758-8767. [PMID: 30712210 DOI: 10.1007/s11356-019-04319-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Accepted: 01/22/2019] [Indexed: 06/09/2023]
Abstract
Epidemiological evidence suggests that the incidence and mortality of cardiovascular diseases are closely related to sulfur dioxide (SO2). In the present study, H9C2 cells were incubated with 100 μM NaHSO3 with or without pretreatment of an antioxidant, N-acetyl-L-cysteine (NAC). The changes of apoptosis rate, mitochondrial membrane potential (MMP), ATP content, caspase-3 activity, and reactive oxygen species (ROS) were detected. Rats were inhaled 7 mg/m3 SO2 and/or intraperitoneal injected with 50 mg/kg (bw) of NAC for 30 days. RT-PCR and Western blot were used to detect the mRNA and protein levels of apoptosis-related genes. We found that the apoptosis of H9C2 cells was induced by NaHSO3, which decreased the content of MMP and ATP, and induced the expression of caspase-3. NAC can inhibit the apoptosis induced by NaHSO3 treatment. SO2 and NaHSO3 decreased the expression of Bcl-2 and the ratio of Bcl-2/Bax, increased the expression of Bax and P53 accumulation and phosphorylation, and activated caspase-9 and caspase-3. Whereas NAC can reduce the changes of apoptosis-related proteins in rat heart. Our results suggest that SO2 induces ROS-mediated P53 and caspase-dependent mitochondrial signaling pathways in H9C2 cells and rat hearts. Antioxidant therapy can reduce the adverse reactions of SO2 and lead to a decline in the cardiovascular disease induced by SO2.
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Affiliation(s)
- Shuyue Li
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, 030006, Shanxi, People's Republic of China
| | - Zhifang Xu
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, 030006, Shanxi, People's Republic of China
- Shan Xi Academy for Environmental Planning, Taiyuan, 030001, Shanxi, People's Republic of China
| | - Jin Xia
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, 030006, Shanxi, People's Republic of China
| | - Guohua Qin
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, 030006, Shanxi, People's Republic of China.
| | - Nan Sang
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, 030006, Shanxi, People's Republic of China.
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Shu B, Zhang J, Jiang Z, Cui G, Veeran S, Zhong G. Harmine induced apoptosis in Spodoptera frugiperda Sf9 cells by activating the endogenous apoptotic pathways and inhibiting DNA topoisomerase I activity. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2019; 155:26-35. [PMID: 30857624 DOI: 10.1016/j.pestbp.2019.01.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 01/03/2019] [Accepted: 01/07/2019] [Indexed: 06/09/2023]
Abstract
Harmine, a useful botanical compound, has demonstrated insecticidal activity against some pests. However, harmine's mechanism of action has not been thoroughly elucidated to date. To preliminarily explore harmine's insecticidal mechanisms, the cytotoxicity of harmine against Spodoptera frugiperda Sf9 cells was comprehensively investigated. Our results indicated that harmine induced apoptosis in Sf9 cells, as evidenced by cellular and nuclear morphological changes, DNA laddering and increases in caspase-3-like activities. In addition, activation of the mitochondrial apoptotic pathway by harmine was confirmed by the generation of ROS, opening of mitochondrial permeability transition pores (MPTPs), increase in cytosolic Ca2+, changes in mRNA expression levels of genes involved in the mitochondrial apoptotic pathway and increase and release of Cytochrome c. Furthermore, lysosomal membrane permeabilization, release of cathepsin L from the lysosome into the cytosol and cleavage of caspase-3 were also triggered, which indicated that lysosomes were involved in this physiological process. Moreover, the effect of harmine on DNA topoisomerase I activity was investigated by in vivo and molecular docking experiments. These data not only verified that harmine induced apoptosis via comprehensive activation of the mitochondrial and lysosomal pathways and inhibition of DNA topoisomerase I activity in Sf9 cells but also revealed a mechanism of harmine insecticidal functions for pest control.
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Affiliation(s)
- Benshui Shu
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China; Guangzhou City Key Laboratory of Subtropical Fruit Trees Outbreak Control, Zhongkai University of Agriculture and Engineering, Guangzhou, China; Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Jingjing Zhang
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China; Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Zhiyan Jiang
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China; Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Gaofeng Cui
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China; Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Sethuraman Veeran
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China; Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Guohua Zhong
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China; Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China.
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30
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Zhang P, Zhang Y, Liu K, Liu B, Xu W, Gao J, Ding L, Tao L. Ivermectin induces cell cycle arrest and apoptosis of HeLa cells via mitochondrial pathway. Cell Prolif 2019; 52:e12543. [PMID: 30515909 PMCID: PMC6496724 DOI: 10.1111/cpr.12543] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/16/2018] [Accepted: 09/17/2018] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES The aim of study was to investigate the anticancer activities of Ivermectin (IVM) and the possible mechanisms in cells level via cell proliferation inhibition, apoptosis and migration inhibition in model cancer cell HeLa. MATERIALS AND METHODS The MTT assay was used to study the inhibitory effect of IVM on the proliferation of Hela cells, and the cell cycle was analysed by flow cytometry. The neutral comet assay was used to study the DNA damage. The presence of apoptosis was confirmed by DAPI nuclear staining and flow cytometry. Changes in mitochondrial membrane potential and reactive oxygen species (ROS) levels were determined using Rhodamine 123 staining and DCFH-DA staining. Western blot analysis for apoptosis-related proteins was carried out. We use scratch test to analyse the antimigration potential of IVM. RESULTS Ivermectin can inhibit the viability of HeLa cells significantly. In addition, treatment with IVM resulted in cell cycle arrest at the G1/S phase which partly account for the suppressed proliferation. Typical apoptosis morphological changes were shown in IVM treatment cells including DNA fragmentation and chromatin condensation. At the same time, the results of flow cytometry analysis showed that the number of apoptotic cells increased significantly with the increase of IVM concentration. Moreover, we observed that the mitochondrial membrane potential collapses and the ratio of Bax/Bcl-2 in the cytoplasm increases, which induces cytochrome c release from the mitochondria to the cytoplasm, activates caspase-9/-3 and finally induces apoptosis. We also found that IVM can significantly increase intracellular ROS content. At the same time, we determined that IVM can significantly inhibit the migration of HeLa cells. CONCLUSIONS Our experimental results show that IVM might be a new potential anticancer drug for therapy of human cancer.
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Affiliation(s)
- Ping Zhang
- Shanghai Key Laboratory of Chemical Biology, School of PharmacyEast China University of Science and TechnologyShanghaiChina
| | - Yang Zhang
- Shanghai Key Laboratory of Chemical Biology, School of PharmacyEast China University of Science and TechnologyShanghaiChina
| | - Kuikui Liu
- Shandong Key Laboratory of Chemical MedicineShandong Academy of Pharmaceutical SciencesJinanChina
| | - Bin Liu
- Vegetable Technical Extension Station Qingpu District ShanghaiShanghaiChina
| | - Wenping Xu
- Shanghai Key Laboratory of Chemical Biology, School of PharmacyEast China University of Science and TechnologyShanghaiChina
| | - Jufang Gao
- College of Life and Environmental SciencesShanghai Normal UniversityShanghaiChina
| | - Lei Ding
- Shanghai Key Laboratory of Chemical Biology, School of PharmacyEast China University of Science and TechnologyShanghaiChina
| | - Liming Tao
- Shanghai Key Laboratory of Chemical Biology, School of PharmacyEast China University of Science and TechnologyShanghaiChina
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31
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Veeran S, Cui G, Shu B, Yi X, Zhong G. Curcumin-induced autophagy and nucleophagy in Spodoptera frugiperda Sf9 insect cells occur via PI3K/AKT/TOR pathways. J Cell Biochem 2019; 120:2119-2137. [PMID: 30242882 DOI: 10.1002/jcb.27520] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 07/30/2018] [Indexed: 01/24/2023]
Abstract
Compounds from plants or microbes are important resources for new natural pesticides against a wide variety of pests. The growing attention on the role of autophagy (type II cell death) in regulation of insect toxicology has propelled researchers to investigate autophagic cell death pathways. Our previous study proved that the cytotoxic effect of curcumin in Spodoptera frugiperda cells is regulated by autophagy. However, the signaling pathways and molecular mechanisms had not been determined. The current study elucidates curcumin inhibition of survival signaling by blocking the activation of PI3K/AKT/TOR pathways to induce autophagy in S. frugiperda cells. The result demonstrates that nucleophagy associated with cell death following the curcumin treatment. Following the curcumin treatment, Atg8/LC3 immunostaining in both nucleus and cytoplasm was markedly increased. Further, messenger RNA expression level of Atg8 and Atg1 genes regulation by curcumin was examined using quantitative reverse transcription polymerase chain reaction, and the result exhibited increased level of expression after curcumin treatment in a time-dependent manner. Our current study provides new insights to the autophagy occurring via PI3K/AKT/TOR pathways in S. frugiperda Sf9 insect cells induced by curcumin. Taken together, our results show for the first time that curcumin induced nucleophagy in lepidopteron insect cell line.
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Affiliation(s)
- Sethuraman Veeran
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China.,Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Gaofeng Cui
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China.,Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Benshui Shu
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China.,Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Xin Yi
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China.,Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Guohua Zhong
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China.,Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
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32
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Fan XY, Liu YJ, Cai YM, Wang AD, Xia YZ, Hu YJ, Jiang FL, Liu Y. A mitochondria-targeted organic arsenical accelerates mitochondrial metabolic disorder and function injury. Bioorg Med Chem 2019; 27:760-768. [PMID: 30665675 DOI: 10.1016/j.bmc.2019.01.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 12/31/2018] [Accepted: 01/14/2019] [Indexed: 12/26/2022]
Abstract
Considering the vital role of mitochondria in the anti-cancer mechanism of organic arsenical, the mitochondria-targeted precursor PDT-PAO-TPP was designed and synthesized. PDT-PAO-TPP, as a delocalization lipophilic cation (DLCs) which mainly accumulated in mitochondria, contributed to improve anti-cancer efficacy and selectivity towards NB4 cells. In detail, PDT-PAO-TPP inhibited the activity of PDHC resulting in the suppression of ATP synthesis and thermogenesis disorder. Additionally, the inhibition of respiratory chain complex I and IV by short-time incubation of PDT-PAO-TPP also accelerated the respiration dysfunction and continuous generation of ROS. These results led to the release of cytochrome c and activation of caspase family-dependent apoptosis. Different from the mechanism of PDT-PAO in HL-60 cells, it mainly induced the mitochondrial metabolic disturbance resulting in the intrinsic apoptosis via inhibiting the activity of PDHC in NB4 cells, which also implied that the efficacy exertion of organic arsenical was a complex process involved in many aspects of cellular function. This study systematically clarifies the anti-cancer mechanism of mitochondria-targeted organic arsenical PDT-PAO-TPP and confirms the new target PDHC of organic arsenicals, which further supports the organic arsenical as a promising anticancer drug.
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Affiliation(s)
- Xiao-Yang Fan
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Yu-Jiao Liu
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Yu-Meng Cai
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - An-Dong Wang
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Yin-Zheng Xia
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Yan-Jun Hu
- College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, PR China
| | - Feng-Lei Jiang
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Yi Liu
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China; College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, PR China; Key Laboratory of Coal Conversion and New Carbon Materials of Hubei Province, College of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, PR China.
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33
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Mura ME, Ruiu L. Sex-Specific Sub-Lethal Effects and Immune Response in Ceratitis capitata Wied. (Diptera: Tephritidae) Challenged with Spinosad. INSECTS 2018; 9:insects9030073. [PMID: 29933642 PMCID: PMC6163605 DOI: 10.3390/insects9030073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 06/15/2018] [Accepted: 06/20/2018] [Indexed: 12/22/2022]
Abstract
The main objective of this study was to investigate the effects of the insecticidal compound spinosad on the survival, reproduction, and immune functions of the Mediterranean fruit fly. The lethal and sub-lethal effects were determined on Ceratitis capitata Wied. (Diptera: Tephritidae) challenged with different concentrations of spinosad. A median lethal concentration of 0.28 ppm was observed on flies feeding for 5 days on a treated diet. A significant and concentration-dependent decrease in fecundity, egg hatch rate, and lifespan was also detected in treated compared with control flies. Gene expression analyses conducted on treated insects by RT-qPCR revealed an immunomodulatory action of sub-lethal concentrations of spinosad. Target transcripts included several genes involved in medfly immunity and male or female reproductive functions. While a significant upregulation was detected in treated males a short time after spinosad ingestion, most target genes were downregulated in treated females. Our study confirmed the high toxicity of spinosad to C. capitata, highlighting an indirect effect on insect lifespan and reproductive performance at sub-lethal doses. In addition to defining the acute and sub-lethal toxicity of spinosad against the fly, this study provides new insights on the interaction of this compound with insect physiology.
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Affiliation(s)
- Maria Elena Mura
- Dipartimento di Agraria, University of Sassari, 07100 Sassari, Italy.
| | - Luca Ruiu
- Dipartimento di Agraria, University of Sassari, 07100 Sassari, Italy.
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Luo J, Qin J, Fu Y, Zhang S, Zhang X, Yang M. 6'-Hydroxy Justicidin B Triggers a Critical Imbalance in Ca 2+ Homeostasis and Mitochondrion-Dependent Cell Death in Human Leukemia K562 Cells. Front Pharmacol 2018; 9:601. [PMID: 29950991 PMCID: PMC6008565 DOI: 10.3389/fphar.2018.00601] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Accepted: 05/18/2018] [Indexed: 12/13/2022] Open
Abstract
Justicia procumbens (J. procumbens) is a traditional Chinese herbal medicine which was used for the treatment of fever, pain, and cancer. A compound 6'-hydroxy justicidin B (HJB) isolated from J. procumbens exhibits promising biological properties. However, the mechanism of action and the in vivo behavior of HJB remain to be elucidated. In this study, we investigated the mechanism of action of HJB on human leukemia K562 cells and its pharmacokinetic properties in rats. The results demonstrated that HJB significantly inhibited the proliferation of K562 cells and promoted apoptosis. Besides, HJB resulted in decreased mitochondrial membrane potential deltaPSIm, increased the level of the calcium homeostasis regulator protein TRPC6 and cytosolic calcium. The activity of caspase-8, caspase-9 and the expression of p53 were significantly increased after treatment with HJB. Additionally, HJB has rapid absorption rate and relative long elimination t1/2, indicating a longer residence time in vivo. The results indicate that HJB inhibited the proliferation of K562 cells and induced apoptosis by affecting the function of mitochondria and calcium homeostasis to activate the p53 signaling pathway. The pharmacokinetic study of HJB suggested it is absorbed well and has moderate metabolism in vivo. These results present HJB as a potential novel alternative to standard human leukemia therapies.
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Affiliation(s)
- Jiaoyang Luo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiaan Qin
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yanwei Fu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shanshan Zhang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xingguo Zhang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Meihua Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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35
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Lopes MP, Fernandes KM, Tomé HVV, Gonçalves WG, Miranda FR, Serrão JE, Martins GF. Spinosad-mediated effects on the walking ability, midgut, and Malpighian tubules of Africanized honey bee workers. PEST MANAGEMENT SCIENCE 2018; 74:1311-1318. [PMID: 29194936 DOI: 10.1002/ps.4815] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 10/26/2017] [Accepted: 11/24/2017] [Indexed: 05/12/2023]
Abstract
BACKGROUND The global decline in Apis mellifera colonies is attributed to multiple factors, including pesticides. The bioinsecticide spinosad was initially recognized as safe for non-target organisms; however, its toxicity has been changing this view. Here, we investigated the survival, behavioral changes, and structural changes in the midgut and Malpighian tubules of A. mellifera treated orally with a spinosad formulation. RESULTS The field-recommended concentration of spinosad killed 100% of the bees. The 5% and 50% lethal concentrations (LC5 and LC50 , respectively) of spinosad altered the behavioral activity, reducing the walking distance and velocity, and increased the resting time in comparison to the control. The LC50 caused disorganization of the epithelia of tested organs and induced oxidative stress and cell death. CONCLUSIONS The present work provides new insights into the debate about the role of bioinsecticides in the mortality of Africanized honey bees. Even at very low concentrations, the spinosad formulation was toxic to the vital organs midgut and Malpighian tubules and adversely affected walking behavior. This detailed evaluation of the impact of the bioinsecticide on A. mellifera will contribute to the clarification of disturbances probably caused by spinosad formulations, which can be used to develop more sustainable protocols in agriculture. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Marcos Pereira Lopes
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - Kenner Morais Fernandes
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, MG, Brazil
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | | | | | | | - José Eduardo Serrão
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, MG, Brazil
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36
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Quadri JA, Sarwar S, Pinky, Kar P, Singh S, Mallick SR, Arava S, Nag TC, Roy TS, Shariff A. Fluoride induced tissue hypercalcemia, IL-17 mediated inflammation and apoptosis lead to cardiomyopathy: Ultrastructural and biochemical findings. Toxicology 2018; 406-407:44-57. [PMID: 29800585 DOI: 10.1016/j.tox.2018.05.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 05/14/2018] [Accepted: 05/18/2018] [Indexed: 02/09/2023]
Abstract
An increased prevalence of cardiac complications has been observed in residents of fluorosis endemic areas chronically exposed to fluoride. Fluoride induces soft tissue injury due to oxidative stress, lipid peroxidation (LPO) and mitochondriopathy. It was hypothesized that chronic fluoride exposure induces apoptosis in cardiomyocytes due to inflammation, lysis of extra cellular matrix and altered calcium metabolism. This study was planned to evaluate the effects of chronic fluoride exposure and the mechanism of action in the cardiac muscle. Fifteen week old male Wistar rats were administered a human equivalent dose of fluoride (50 and 100 ppm ad-libitum, HED = 5 & 10 ppm in human) for 75-days. After 75-days of fluoride exposure, the animals were euthanized and fluoride, oxidative stress (SOD, GPX, Catalase activities) and LPO were measured. Histopathological and ultrastructural pathological examinations were conducted on the cardiac tissues using light, atomic force and electron microscopies. The cardiac tissues were also assessed for apoptosis (TUNEL/Caspase assays), and tissue calcium levels (Alizarin-assay and SEM-EDX). Tissue inflammation and expression of IL-17, MMP-9, Caspase-3 and Bcl-2 were evaluated. In the fluoride exposed groups, a significant (≤0.05) increase in levels of oxidative stress, LPO and apoptosis were observed. The IL-17, MMP-9 and Caspase-3 were significantly (≤0.05) higher in the cardiac muscle after chronic fluoride exposure. The fluoride seems to have induced inflammation in the cardiac tissues, as well as an increase in tissue calcium (≤0.05). There was significant damage to cardiac muscle fibres including, thinning, distortion and neo-vasculogenesis following chronic fluoride exposure. Mitochondriopathy, lysis of ground substance, oedema, and hyper-vacuolation was seen in fluoride treated groups. Remarkable levels of distortion and bending in Z band were observed under the AFM. Many of these observed changes mimic those occurring in cardiomegaly, cardiac hypertrophy and cardiomyopathies.
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Affiliation(s)
| | - Saba Sarwar
- Department of Anatomy, AIIMS, New Delhi, India
| | - Pinky
- Department of Anatomy, AIIMS, New Delhi, India
| | - Parmita Kar
- Department of Endocrinology and Metabolism, AIIMS, New Delhi, India
| | - Seema Singh
- Department of Anatomy, AIIMS, New Delhi, India
| | | | | | | | | | - A Shariff
- Department of Anatomy, AIIMS, New Delhi, India
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37
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Ren X, Zhao B, Chang H, Xiao M, Wu Y, Liu Y. Paclitaxel suppresses proliferation and induces apoptosis through regulation of ROS and the AKT/MAPK signaling pathway in canine mammary gland tumor cells. Mol Med Rep 2018; 17:8289-8299. [PMID: 29658576 PMCID: PMC5984005 DOI: 10.3892/mmr.2018.8868] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 03/07/2018] [Indexed: 12/23/2022] Open
Abstract
Paclitaxel is a diterpenoid compound, derived from the pacific yew (Taxus brevifolia) berry, which exhibits antineoplastic effects against various types of cancer. However, the antitumor effects and the molecular mechanisms of paclitaxel on canine CHMm cells remain to be elucidated. The aim of the present study was to investigate the antitumor effects of paclitaxel on CHMm cells and identify relevant signal transduction pathways modulated by paclitaxel using multiple methods including MTT assay, flow cytometry, acridine orange/ethidium bromide staining, transmission electron microscopy, determination of cellular reactive oxygen species (ROS), superoxide dismutase (SOD) and malondiadehyde (MDA) and western blotting, the data indicated that paclitaxel decreased cell viability, induced G2/M-phase cell cycle arrest, suppressed the expression of cyclin B1 and induced apoptosis in a dose-dependent manner. In addition, paclitaxel upregulated the expression of Bax and cytochrome c, but reduced expression of apoptosis regulator Bcl-2, resulting in activation of caspase-3, chromatin condensation, karyopyknosis, intracellular vacuolization, increased production of ROS and MDA, and decreased activity of SOD. However, these effects were inhibited when CHMm cells were treated with N-acetyl-L-cysteine. Furthermore, treatment with paclitaxel inhibited the level of of phospho (p)-RAC-α serine/threonine-protein kinase (AKT) and p-ribosomal protein S6 kinase proteins, and promoted phosphorylation of P38 mitogen-activated protein kinase (MAPK) and p-90 kDa ribosomal protein S6 kinase 1 proteins in CHMm cells. It was observed that paclitaxel in combination with pharmacological inhibitors of the P38 and phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K) signaling pathways (SB203580 and LY294002, respectively) exerted synergistic inhibitory effects on the proliferation of the CHMm cells. The results of the present study demonstrated that paclitaxel inhibited tumor cell proliferation by increasing intrinsic apoptosis through inhibition of the PI3K/AKT signaling pathway and activation of MAPK signaling pathway in CHMm cells.
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Affiliation(s)
- Xiaoli Ren
- Department of Veterinary Surgery, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Bingbing Zhao
- Department of Veterinary Surgery, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Hongjian Chang
- Department of Veterinary Surgery, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Min Xiao
- Department of Veterinary Surgery, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Yuhong Wu
- Department of Veterinary Surgery, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Yun Liu
- Department of Veterinary Surgery, College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
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Zhang J, Zhang Z, Shu B, Cui G, Zhong G. Cytotoxic and Apoptotic Activity of the Novel Harmine Derivative ZC-14 in Sf9 Cells. Int J Mol Sci 2018. [PMID: 29534494 PMCID: PMC5877672 DOI: 10.3390/ijms19030811] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Harmine, one of the natural β-carboline alkaloids extracted from Peganum harmala L., exhibits broad spectrum but limited insecticidal ability against many pests. So there is an urgent need to synthesize novel derivatives with high efficiency. In the present study, a new synthetic compound, [1-(2-naphthyl)-3-(2-thioxo-1,3,4-oxadiazol-5-yl) β-carboline] (ZC-14), showed a strong proliferation inhibition effect against the Spodoptera frugiperda Sf9 cell line in a dose-dependent manner. Simultaneously, apoptosis induced by 7.5 μg/mL ZC-14 was confirmed with physiological and biochemical evidence, including typical apoptosis characteristics with shrinkage, apoptotic bodies, nuclear condensation/fragmentation, a clear DNA ladder, and a series of apoptotic rates. In addition, mitochondria were confirmed to be involved in apoptosis induced by ZC-14 accompanied with the loss of mitochondrial membrane potential (Δψm), the release of cytochrome c from mitochondria into the cytosol and increased expression of cleaved-caspase-3. However, harmine could not induce apoptosis at the same concentration. In summary, these data indicated that compound ZC-14 has a higher cytotoxicity than harmine against Sf9 cells. Besides, it exhibited an anti-proliferative effect in Sf9 cells via inducing apoptosis in which the mitochondrial apoptotic pathway plays a crucial role.
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Affiliation(s)
- Jingjing Zhang
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China.
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China.
| | - Zhijun Zhang
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China.
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China.
| | - Benshui Shu
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China.
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China.
| | - Gaofeng Cui
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China.
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China.
| | - Guohua Zhong
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China.
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China.
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Shu B, Zhang J, Cui G, Sun R, Yi X, Zhong G. Azadirachtin Affects the Growth of Spodoptera litura Fabricius by Inducing Apoptosis in Larval Midgut. Front Physiol 2018. [PMID: 29535638 PMCID: PMC5835231 DOI: 10.3389/fphys.2018.00137] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Azadirachtin, the environmentally friendly botanical pesticide, has been used as an antifeedant and pest growth regulator in integrated pest management for decades. It has shown strong biological activity against Spodoptera litura, but the mechanism of toxicity remains unclear. The present study showed that azadirachtin inhibited the growth of S. litura larvae, which was resulted by structure destroy and size inhibition of the midgut. Digital gene expression (DGE) analysis of midgut suggested that azadirachtin regulated the transcriptional level of multiple unigenes involved in mitogen-activated protein kinase (MAPK) and calcium apoptotic signaling pathways. Simultaneously, the expression patterns of some differentially expressed unigenes were verified by quantitative real time-PCR (qRT-PCR). In addition, the enhanced terminal deoxynucleotidyl transferase biotin-dUTP nick end labeling (TUNEL) staining, the increased expression of caspase family members and apoptosis-binding motif 1 (IBM1) on both gene and protein level and the release of cytochrome c from mitochondria to cytoplasm were induced in midgut after azadirachtin treatment. These results demonstrated that azadirachtin induced structural alteration in S. litura larval midgut by apoptosis activation. These alterations may affect the digestion and absorption of nutrients and eventually lead to the growth inhibition of larvae.
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Affiliation(s)
- Benshui Shu
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Jingjing Zhang
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Gaofeng Cui
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Ranran Sun
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Xin Yi
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Guohua Zhong
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
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40
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Image-based cell-size estimation for baculovirus quantification. Biotechniques 2017; 63:161-168. [DOI: 10.2144/000114595] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/09/2017] [Indexed: 11/23/2022] Open
Abstract
Measurement of virus concentration is essential for effective virus-based transfection technologies. Here, we describe a user-friendly, image-based cell-size estimation (ICSE) assay for baculovirus quantification that relies on automated determination of cell diameters from bright-field microscopy images. In the ICSE assay, microplate-based imaging systems and our custom ICSE-Tools software enable measurement of cell morphological parameters over time. Results from the ICSE assay were in agreement with virus concentration measurements obtained using the traditional plaque assay as well as the Coulter principle–based cell-size measurement assay. ICSE-Tools is designed for data organization and image analysis from microplate-based imaging systems, and is freely available at www.gpcr.ut.ee/software.html .
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41
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Yan X, Wang L, Yang X, Qiu Y, Tian X, Lv Y, Tian F, Song G, Wang T. Fluoride induces apoptosis in H9c2 cardiomyocytes via the mitochondrial pathway. CHEMOSPHERE 2017; 182:159-165. [PMID: 28494360 DOI: 10.1016/j.chemosphere.2017.05.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 04/15/2017] [Accepted: 05/01/2017] [Indexed: 06/07/2023]
Abstract
Numerous studies have shown that chronic excessive fluoride intake can adversely affect different organ systems. In particular, the cardiovascular system is susceptible to disruption by a high concentration of fluoride. The objectives of this study were to explore the mechanism of apoptosis by detecting the toxic effects of different concentrations of sodium fluoride (NaF) in H9c2 cells exposed for up to 96 h. NaF not only inhibited H9c2 cell proliferation but also induced apoptosis and morphological damage. With increasing NaF concentrations, early apoptosis of H9c2 cells was increased while the mitochondrial membrane potential was decreased. Compared with the control group, the mRNA levels of caspase-3, caspase-9, and cytochrome c all increased with increasing concentrations of NaF. In summary, these data suggest that apoptosis is involved in NaF-induced H9c2 cell toxicity and that activation of the mitochondrial pathway may occur.
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Affiliation(s)
- Xiaoyan Yan
- School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, 030001, People's Republic of China
| | - Lu Wang
- Shanxi Key Laboratory of Experimental Animal and Human Disease Animal Models, Shanxi Medical University, Taiyuan, Shanxi, 030001, People's Republic of China
| | - Xia Yang
- Shanxi Key Laboratory of Experimental Animal and Human Disease Animal Models, Shanxi Medical University, Taiyuan, Shanxi, 030001, People's Republic of China
| | - Yulan Qiu
- School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, 030001, People's Republic of China
| | - Xiaolin Tian
- Shanxi Key Laboratory of Experimental Animal and Human Disease Animal Models, Shanxi Medical University, Taiyuan, Shanxi, 030001, People's Republic of China
| | - Yi Lv
- School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, 030001, People's Republic of China
| | - Fengjie Tian
- School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, 030001, People's Republic of China
| | - Guohua Song
- Shanxi Key Laboratory of Experimental Animal and Human Disease Animal Models, Shanxi Medical University, Taiyuan, Shanxi, 030001, People's Republic of China
| | - Tong Wang
- School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, 030001, People's Republic of China.
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Xu W, Yang M, Gao J, Zhang Y, Tao L. Oxidative stress and DNA damage induced by spinosad exposure in Spodoptera frugiperda Sf9 cells. FOOD AGR IMMUNOL 2017. [DOI: 10.1080/09540105.2017.1364708] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Affiliation(s)
- Wenping Xu
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, People’s Republic of China
| | - Mingjun Yang
- State Key Labs of Family Planning Devices, Shanghai Institute of Planned Parenthood Research, Shanghai, People’s Republic of China
| | - Jufang Gao
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, People’s Republic of China
| | - Yang Zhang
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, People’s Republic of China
| | - Liming Tao
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, People’s Republic of China
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43
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Ren X, Zhang L, Zhang Y, Mao L, Jiang H. Mitochondria response to camptothecin and hydroxycamptothecine-induced apoptosis in Spodoptera exigua cells. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2017; 140:97-104. [PMID: 28755702 DOI: 10.1016/j.pestbp.2017.07.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 06/06/2017] [Accepted: 07/07/2017] [Indexed: 06/07/2023]
Abstract
Camptothecin (CPT), a natural alkaloid extracted from Camptotheca acuminata Decne, exhibits potential insecticidal activities against various insect species. Our previous studies have showed that CPTs induced apoptosis in Spodoptera exigua Hübner cell line which is mediated preliminarily by the mitochondrial pathway. In this study, changes of mitochondrial morphologic and function were investigated to characterize mitochondrial responses in CPTs induced apoptosis. After incubation IOZCAS-Spex-II cells with CPT and HCPT, mitochondria exhibited obvious changes in the size, morphology and distribution, and ultrastructural alterations characterized by disruption of cristae and membrane. The typical characteristics of apoptosis, including chromatin condensation, nucleus shrivels, and cytoplasmic vacuoles were found. CPT and HCPT induced IOZCAS-Spex-II cell apoptosis accompanied with increased dramatically cytosolic Ca2+ and reduced mitochondrial membrane potential in the dose and time-dependent pattern. Cytochrome c release induced by CPT and HCPT was partially reduced in the presence of CsA, which suggested that the opening of mitochondrial permeability transition pore. Taken together, these results suggested the role of mitochondria in regulation of insect cell apoptosis, which provided the basic information for illustrating the apoptosis pathway in insects and for using reasonably CPTs to control insect pests.
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Affiliation(s)
- Xiaoshuang Ren
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Lan Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
| | - Yanning Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Liangang Mao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Hongyun Jiang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
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44
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Yang M, Hao Y, Gao J, Zhang Y, Xu W, Tao L. Spinosad induces autophagy of Spodoptera frugiperda Sf9 cells and the activation of AMPK/mTOR signaling pathway. Comp Biochem Physiol C Toxicol Pharmacol 2017; 195:52-59. [PMID: 28223193 DOI: 10.1016/j.cbpc.2017.02.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 02/16/2017] [Accepted: 02/16/2017] [Indexed: 10/20/2022]
Abstract
Spinosad, a high-selectivity neural toxin, has been widely used in agricultural production. However, the mode of action of spinosad on insect non-neural cells is not yet clear and hence requires further investigation. Therefore, to reveal the cytotoxic mechanisms of spinosad, we investigated whether and how it can induce autophagic cell death. After treating Sf9 cells with spinosad, the resulting autophagosome was observed by transmission electron microscopy and monodansylcadaverine staining. Interestingly, spinosad induced the accumulation of Beclin-1, degradation of p62, and intensification of LC3-B formation and translocation and thus autophagy, whereas, 3-MA treatment reverted the phenotype. Under ATP depletion conditions, spinosad induced autophagy of Sf9 cells and activation of the AMPK/mTOR signaling pathway.
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Affiliation(s)
- Mingjun Yang
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Youwu Hao
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jufang Gao
- College of Life and Environmental Sciences, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
| | - Yang Zhang
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wenping Xu
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Liming Tao
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
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