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Malla S, Nyinawabera A, Neupane R, Pathak R, Lee D, Abou-Dahech M, Kumari S, Sinha S, Tang Y, Ray A, Ashby CR, Yang MQ, Babu RJ, Tiwari AK. Novel Thienopyrimidine-Hydrazinyl Compounds Induce DRP1-Mediated Non-Apoptotic Cell Death in Triple-Negative Breast Cancer Cells. Cancers (Basel) 2024; 16:2621. [PMID: 39123351 PMCID: PMC11311031 DOI: 10.3390/cancers16152621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Revised: 07/11/2024] [Accepted: 07/15/2024] [Indexed: 08/12/2024] Open
Abstract
Apoptosis induction with taxanes or anthracyclines is the primary therapy for TNBC. Cancer cells can develop resistance to anticancer drugs, causing them to recur and metastasize. Therefore, non-apoptotic cell death inducers could be a potential treatment to circumvent apoptotic drug resistance. In this study, we discovered two novel compounds, TPH104c and TPH104m, which induced non-apoptotic cell death in TNBC cells. These lead compounds were 15- to 30-fold more selective in TNBC cell lines and significantly decreased the proliferation of TNBC cells compared to that of normal mammary epithelial cell lines. TPH104c and TPH104m induced a unique type of non-apoptotic cell death, characterized by the absence of cellular shrinkage and the absence of nuclear fragmentation and apoptotic blebs. Although TPH104c and TPH104m induced the loss of the mitochondrial membrane potential, TPH104c- and TPH104m-induced cell death did not increase the levels of cytochrome c and intracellular reactive oxygen species (ROS) and caspase activation, and cell death was not rescued by incubating cells with the pan-caspase inhibitor, carbobenzoxy-valyl-alanyl-aspartyl-[O-methyl]-fluoromethylketone (Z-VAD-FMK). Furthermore, TPH104c and TPH104m significantly downregulated the expression of the mitochondrial fission protein, DRP1, and their levels determined their cytotoxic efficacy. Overall, TPH104c and TPH104m induced non-apoptotic cell death, and further determination of their cell death mechanisms will aid in the development of new potent and efficacious anticancer drugs to treat TNBC.
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Affiliation(s)
- Saloni Malla
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA; (S.M.); (A.N.); (R.N.); (D.L.); (M.A.-D.); (S.K.)
| | - Angelique Nyinawabera
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA; (S.M.); (A.N.); (R.N.); (D.L.); (M.A.-D.); (S.K.)
| | - Rabin Neupane
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA; (S.M.); (A.N.); (R.N.); (D.L.); (M.A.-D.); (S.K.)
| | - Rajiv Pathak
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA;
| | - Donghyun Lee
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA; (S.M.); (A.N.); (R.N.); (D.L.); (M.A.-D.); (S.K.)
| | - Mariam Abou-Dahech
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA; (S.M.); (A.N.); (R.N.); (D.L.); (M.A.-D.); (S.K.)
| | - Shikha Kumari
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA; (S.M.); (A.N.); (R.N.); (D.L.); (M.A.-D.); (S.K.)
| | - Suman Sinha
- Institute of Pharmaceutical Research, GLA University, Mathura 281406, UP, India;
| | - Yuan Tang
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA;
| | - Aniruddha Ray
- Department of Physics, College of Math’s and Natural Sciences, University of Toledo, Toledo, OH 43606, USA;
| | - Charles R. Ashby
- Department of Pharmaceutical Sciences, College of Pharmacy, St. John’s University, Queens, NY 11439, USA;
| | - Mary Qu Yang
- MidSouth Bioinformatics Center and Joint Bioinformatics Graduate Program of University of Arkansas at Little Rock, University of Arkansas for Medical Sciences, Little Rock, AR 72204, USA;
| | - R. Jayachandra Babu
- Department of Drug Discovery & Development, Harrison School of Pharmacy, Auburn University, Auburn, AL 36849, USA;
| | - Amit K. Tiwari
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA; (S.M.); (A.N.); (R.N.); (D.L.); (M.A.-D.); (S.K.)
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA;
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Gao J, Xiong A, Liu J, Li X, Wang J, Zhang L, Liu Y, Xiong Y, Li G, He X. PANoptosis: bridging apoptosis, pyroptosis, and necroptosis in cancer progression and treatment. Cancer Gene Ther 2024; 31:970-983. [PMID: 38553639 PMCID: PMC11257964 DOI: 10.1038/s41417-024-00765-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/17/2024] [Accepted: 03/19/2024] [Indexed: 07/20/2024]
Abstract
This comprehensive review explores the intricate mechanisms of PANoptosis and its implications in cancer. PANoptosis, a convergence of apoptosis, pyroptosis, and necroptosis, plays a crucial role in cell death and immune response regulation. The study delves into the molecular pathways of each cell death mechanism and their crosstalk within PANoptosis, emphasizing the shared components like caspases and the PANoptosome complex. It highlights the significant role of PANoptosis in various cancers, including respiratory, digestive, genitourinary, gliomas, and breast cancers, showing its impact on tumorigenesis and patient survival rates. We further discuss the interwoven relationship between PANoptosis and the tumor microenvironment (TME), illustrating how PANoptosis influences immune cell behavior and tumor progression. It underscores the dynamic interplay between tumors and their microenvironments, focusing on the roles of different immune cells and their interactions with cancer cells. Moreover, the review presents new breakthroughs in cancer therapy, emphasizing the potential of targeting PANoptosis to enhance anti-tumor immunity. It outlines various strategies to manipulate PANoptosis pathways for therapeutic purposes, such as targeting key signaling molecules like caspases, NLRP3, RIPK1, and RIPK3. The potential of novel treatments like immunogenic PANoptosis-initiated therapies and nanoparticle-based strategies is also explored.
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Affiliation(s)
- Jie Gao
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
- Department of Pulmonary and Critical Care Medicine, Chengdu third people's hospital branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, 610031, China
| | - Anying Xiong
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
- Department of Pulmonary and Critical Care Medicine, Chengdu third people's hospital branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, 610031, China
| | - Jiliu Liu
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
- Department of Pulmonary and Critical Care Medicine, Chengdu third people's hospital branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, 610031, China
| | - Xiaolan Li
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
- Department of Pulmonary and Critical Care Medicine, Chengdu third people's hospital branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, 610031, China
- National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Institute of Respiratory Health, The First Affiliated Hospital of Medical University, Guangzhou, Guangdong, 510120, China
| | - Junyi Wang
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
- Department of Pulmonary and Critical Care Medicine, Chengdu third people's hospital branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, 610031, China
| | - Lei Zhang
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
- Department of Pulmonary and Critical Care Medicine, Chengdu third people's hospital branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, 610031, China
| | - Yao Liu
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
- Department of Pulmonary and Critical Care Medicine, Chengdu third people's hospital branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, 610031, China
| | - Ying Xiong
- Department of Pulmonary and Critical Care Medicine, Sichuan friendship hospital, Chengdu, 610000, China
| | - Guoping Li
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China.
- Department of Pulmonary and Critical Care Medicine, Chengdu third people's hospital branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, 610031, China.
| | - Xiang He
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China.
- Department of Pulmonary and Critical Care Medicine, Chengdu third people's hospital branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, 610031, China.
- National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Institute of Respiratory Health, The First Affiliated Hospital of Medical University, Guangzhou, Guangdong, 510120, China.
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Qiao S, Kang Y, Tan X, Zhou X, Zhang C, Lai S, Liu J, Shao L. Nanomaterials-induced programmed cell death: Focus on mitochondria. Toxicology 2024; 504:153803. [PMID: 38616010 DOI: 10.1016/j.tox.2024.153803] [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: 02/07/2024] [Revised: 04/03/2024] [Accepted: 04/10/2024] [Indexed: 04/16/2024]
Abstract
Nanomaterials are widely utilized in several domains, such as everyday life, societal manufacturing, and biomedical applications, which expand the potential for nanomaterials to penetrate biological barriers and interact with cells. Multiple studies have concentrated on the particular or improper utilization of nanomaterials, resulting in cellular death. The primary mode of cell death caused by nanotoxicity is programmable cell death, which includes apoptosis, ferroptosis, necroptosis, and pyroptosis. Based on our prior publications and latest research, mitochondria have a vital function in facilitating programmed cell death caused by nanomaterials, as well as initiating or transmitting death signal pathways associated with it. Therefore, this review takes mitochondria as the focal point to investigate the internal molecular mechanism of nanomaterial-induced programmed cell death, with the aim of identifying potential targets for prevention and treatment in related studies.
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Affiliation(s)
- Shijia Qiao
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Yiyuan Kang
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Xiner Tan
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Xinru Zhou
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Can Zhang
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Shulin Lai
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Jia Liu
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China.
| | - Longquan Shao
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China.
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Chen H, Wang Y, Liang H. The combined neurotoxicity of DBP and nano-TiO 2 in embryonic zebrafish (Danio rerio) revealed by oxidative activity, neuro-development genes expression and metabolomics changes. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 269:106881. [PMID: 38430782 DOI: 10.1016/j.aquatox.2024.106881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 02/23/2024] [Accepted: 02/25/2024] [Indexed: 03/05/2024]
Abstract
Dibutyl phthalate (DBP) is a commonly used plasticizer that is frequently detected in water samples due to its widespread use. Titanium dioxide nanoparticles (n-TiO2) have been found to enhance the harmful effects of organic contaminants by increasing their bioavailability in aquatic environments. However, the combined toxic effects of DBP and n-TiO2 on aquatic organisms remain unclear. This study aimed to investigate the neurotoxicity of DBP and n-TiO2 synergistic exposure during the early life stage of zebrafish. The results of the study revealed that co-exposure of DBP and n-TiO2 led to an increase in deformities and a significant reduction in the active duration of zebrafish larvae. Furthermore, the co-exposure of DBP and n-TiO2 resulted in elevated levels of oxidative stress and altered gene expression related to neurodevelopment and apoptosis. Notably, n-TiO2 exacerbated the oxidative damage and apoptosis induced by DBP alone exposure. Additionally, co-exposure of the 1.0 mg/L DBP and n-TiO2 significantly affected the expression of genes associated with neurodevelopment. Moreover, disturbances in amino acid metabolism and interference with lipid metabolism were observed as a result of DBP and n-TiO2 co-exposure. In general, n-TiO2 aggravated the neurotoxicity of DBP in the early life stage of zebrafish by increasing oxidative stress, apoptosis, and disrupting amino acid synthesis and lipid metabolism. Therefore, it is essential to consider the potential risks caused by DBP and nanomaterials co-existence in the aquatic environment.
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Affiliation(s)
- Haiyue Chen
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, The Inner Mongolia Autonomous Region Hohhot College Road No. 235, Hohhot, 010021, China
| | - Yingjia Wang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, The Inner Mongolia Autonomous Region Hohhot College Road No. 235, Hohhot, 010021, China
| | - Hongwu Liang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, The Inner Mongolia Autonomous Region Hohhot College Road No. 235, Hohhot, 010021, China.
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5
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Shkarina K, Broz P. Selective induction of programmed cell death using synthetic biology tools. Semin Cell Dev Biol 2024; 156:74-92. [PMID: 37598045 DOI: 10.1016/j.semcdb.2023.07.012] [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: 05/05/2023] [Revised: 07/21/2023] [Accepted: 07/21/2023] [Indexed: 08/21/2023]
Abstract
Regulated cell death (RCD) controls the removal of dispensable, infected or malignant cells, and is thus essential for development, homeostasis and immunity of multicellular organisms. Over the last years different forms of RCD have been described (among them apoptosis, necroptosis, pyroptosis and ferroptosis), and the cellular signaling pathways that control their induction and execution have been characterized at the molecular level. It has also become apparent that different forms of RCD differ in their capacity to elicit inflammation or an immune response, and that RCD pathways show a remarkable plasticity. Biochemical and genetic studies revealed that inhibition of a given pathway often results in the activation of back-up cell death mechanisms, highlighting close interconnectivity based on shared signaling components and the assembly of multivalent signaling platforms that can initiate different forms of RCD. Due to this interconnectivity and the pleiotropic effects of 'classical' cell death inducers, it is challenging to study RCD pathways in isolation. This has led to the development of tools based on synthetic biology that allow the targeted induction of RCD using chemogenetic or optogenetic methods. Here we discuss recent advances in the development of such toolset, highlighting their advantages and limitations, and their application for the study of RCD in cells and animals.
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Affiliation(s)
- Kateryna Shkarina
- Institute of Innate Immunity, University Hospital Bonn, Germany; German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.
| | - Petr Broz
- Department of Immunobiology, University of Lausanne, Switzerland.
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Cen JH, Xie QH, Guo GH, Gao LJ, Liao YH, Zhong XP, Liu HY. Azide-modified corrole phosphorus complexes for endoplasmic reticulum-targeted fluorescence bioimaging and effective cancer photodynamic therapy. Eur J Med Chem 2024; 265:116102. [PMID: 38176359 DOI: 10.1016/j.ejmech.2023.116102] [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: 10/16/2023] [Revised: 12/24/2023] [Accepted: 12/24/2023] [Indexed: 01/06/2024]
Abstract
Study on corrole photosensitizers (PSs) for photodynamic therapy (PDT) has made remarkable progress. Targeted delivery of PSs is of great significance for enhancing therapeutic efficiency, decreasing the dosage, and reducing systemic toxicity during PDT. The development of PSs that can be specifically delivered to the subcellular organelle is still an attractive and challenging work. Herein, we synthesize a series of azide-modified corrole phosphorus and gallium complex PSs, in which phosphorus corrole 2-P could not only precisely target the endoplasmic reticulum (ER) with a Pearson correlation coefficient (PCC) up to 0.92 but also possesses the highest singlet oxygen quantum yields (ΦΔ = 0.75). This renders it remarkable PDT activity at a very low dosage (IC50 = 23 nM) towards HepG2 tumor cell line while ablating solid tumors in vivo with excellent biosecurity. Furthermore, 2-P exhibits intense red fluorescence (ΦF = 0.25), outstanding photostability, and a large Stokes shift (190 nm), making it a promising fluorescent probe for ER. This study provides a clinically potential photosensitizer for cancer photodynamic therapy and a promising ER fluorescent probe for bioimaging.
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Affiliation(s)
- Jing-He Cen
- School of Chemistry and Chemical Engineering, The Key Laboratory of Fuel Cell Technology of Guangdong Province, South China University of Technology, Guangzhou, 510641, China
| | - Qi-Hu Xie
- Department of Plastic Surgery and Burns, The Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China
| | - Geng-Hong Guo
- Department of Plastic Surgery and Burns, The Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China
| | - Long-Jiang Gao
- School of Chemistry and Chemical Engineering, The Key Laboratory of Fuel Cell Technology of Guangdong Province, South China University of Technology, Guangzhou, 510641, China
| | - Yu-Hui Liao
- Molecular Diagnosis and Treatment Center for Infectious Diseases, Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China.
| | - Xiao-Ping Zhong
- Department of Plastic Surgery and Burns, The Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China.
| | - Hai-Yang Liu
- School of Chemistry and Chemical Engineering, The Key Laboratory of Fuel Cell Technology of Guangdong Province, South China University of Technology, Guangzhou, 510641, China.
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Sever AIM, Alderson TR, Rennella E, Aramini JM, Liu ZH, Harkness RW, Kay LE. Activation of caspase-9 on the apoptosome as studied by methyl-TROSY NMR. Proc Natl Acad Sci U S A 2023; 120:e2310944120. [PMID: 38085782 PMCID: PMC10743466 DOI: 10.1073/pnas.2310944120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 10/23/2023] [Indexed: 12/18/2023] Open
Abstract
Mitochondrial apoptotic signaling cascades lead to the formation of the apoptosome, a 1.1-MDa heptameric protein scaffold that recruits and activates the caspase-9 protease. Once activated, caspase-9 cleaves and activates downstream effector caspases, triggering the onset of cell death through caspase-mediated proteolysis of cellular proteins. Failure to activate caspase-9 enables the evasion of programmed cell death, which occurs in various forms of cancer. Despite the critical apoptotic function of caspase-9, the structural mechanism by which it is activated on the apoptosome has remained elusive. Here, we used a combination of methyl-transverse relaxation-optimized NMR spectroscopy, protein engineering, and biochemical assays to study the activation of caspase-9 bound to the apoptosome. In the absence of peptide substrate, we observed that both caspase-9 and its isolated protease domain (PD) only very weakly dimerize with dissociation constants in the millimolar range. Methyl-NMR spectra of isotope-labeled caspase-9, within the 1.3-MDa native apoptosome complex or an engineered 480-kDa apoptosome mimic, reveal that the caspase-9 PD remains monomeric after recruitment to the scaffold. Binding to the apoptosome, therefore, organizes caspase-9 PDs so that they can rapidly and extensively dimerize only when substrate is present, providing an important layer in the regulation of caspase-9 activation. Our work highlights the unique role of NMR spectroscopy to structurally characterize protein domains that are flexibly tethered to large scaffolds, even in cases where the molecular targets are in excess of 1 MDa, as in the present example.
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Affiliation(s)
- Alexander I. M. Sever
- Department of Chemistry, University of Toronto, Toronto, ONM5S 3H6, Canada
- Program in Molecular Medicine, The Hospital for Sick Children Research Institute, Toronto, ONM5G 0A4, Canada
| | - T. Reid Alderson
- Department of Chemistry, University of Toronto, Toronto, ONM5S 3H6, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ONM5S 1A8, Canada
- Department of Biochemistry, University of Toronto, Toronto, ONM5S 1A8, Canada
| | - Enrico Rennella
- Department of Chemistry, University of Toronto, Toronto, ONM5S 3H6, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ONM5S 1A8, Canada
- Department of Biochemistry, University of Toronto, Toronto, ONM5S 1A8, Canada
| | - James M. Aramini
- Department of Chemistry, University of Toronto, Toronto, ONM5S 3H6, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ONM5S 1A8, Canada
- Department of Biochemistry, University of Toronto, Toronto, ONM5S 1A8, Canada
| | - Zi Hao Liu
- Program in Molecular Medicine, The Hospital for Sick Children Research Institute, Toronto, ONM5G 0A4, Canada
- Department of Biochemistry, University of Toronto, Toronto, ONM5S 1A8, Canada
| | - Robert W. Harkness
- Department of Chemistry, University of Toronto, Toronto, ONM5S 3H6, Canada
- Program in Molecular Medicine, The Hospital for Sick Children Research Institute, Toronto, ONM5G 0A4, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ONM5S 1A8, Canada
- Department of Biochemistry, University of Toronto, Toronto, ONM5S 1A8, Canada
| | - Lewis E. Kay
- Department of Chemistry, University of Toronto, Toronto, ONM5S 3H6, Canada
- Program in Molecular Medicine, The Hospital for Sick Children Research Institute, Toronto, ONM5G 0A4, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ONM5S 1A8, Canada
- Department of Biochemistry, University of Toronto, Toronto, ONM5S 1A8, Canada
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Li Y, Tian L, Zhang Y, Shi Y. Structural insights into CED-3 activation. Life Sci Alliance 2023; 6:e202302056. [PMID: 37402593 PMCID: PMC10320015 DOI: 10.26508/lsa.202302056] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 06/11/2023] [Accepted: 06/12/2023] [Indexed: 07/06/2023] Open
Abstract
In Caenorhabditis elegans (C. elegans), onset of programmed cell death is marked with the activation of CED-3, a process that requires assembly of the CED-4 apoptosome. Activated CED-3 forms a holoenzyme with the CED-4 apoptosome to cleave a wide range of substrates, leading to irreversible cell death. Despite decades of investigations, the underlying mechanism of CED-4-facilitated CED-3 activation remains elusive. Here, we report cryo-EM structures of the CED-4 apoptosome and three distinct CED-4/CED-3 complexes that mimic different activation stages for CED-3. In addition to the previously reported octamer in crystal structures, CED-4, alone or in complex with CED-3, exists in multiple oligomeric states. Supported by biochemical analyses, we show that the conserved CARD-CARD interaction promotes CED-3 activation, and initiation of programmed cell death is regulated by the dynamic organization of the CED-4 apoptosome.
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Affiliation(s)
- Yini Li
- Beijing Frontier Research Center for Biological Structures, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
| | - Lu Tian
- Beijing Frontier Research Center for Biological Structures, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
| | - Ying Zhang
- Beijing Frontier Research Center for Biological Structures, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
| | - Yigong Shi
- Beijing Frontier Research Center for Biological Structures, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
- Westlake Laboratory of Life Science and Biomedicine, Westlake Institute for Advanced Study, Hangzhou, China
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, China
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Ahmed SA, Al-Shanon AF, Al-Saffar AZ, Tawang A, Al-Obaidi JR. Antiproliferative and cell cycle arrest potentials of 3-O-acetyl-11-keto-β-boswellic acid against MCF-7 cells in vitro. J Genet Eng Biotechnol 2023; 21:75. [PMID: 37393563 DOI: 10.1186/s43141-023-00529-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 06/20/2023] [Indexed: 07/04/2023]
Abstract
INTRODUCTION Cancer is a major issue in medical science with increasing death cases every year worldwide. Therefore, searching for alternatives and nonorthodox methods of treatments with high efficiency, selectivity and less toxicity is the main goal in fighting cancer. Acetyl-11-keto-β-boswellic acid (AKBA), is a derivative pentacyclic triterpenoid that exhibited various biological activities with potential anti-tumoral agents. In this research, AKBA was utilized to examine the potential cytotoxic activity against MCF-7 cells in vitro and monitor the cellular and morphological changes with a prospective impact on apoptosis induction. METHODS The cytotoxic activity of AKBA was measured by 3(4,5dimethylthiazole- 2-yl)-2,5 diphyneltetrazolium bromide (MTT) assay. A dose-dependent inhibition in MCF-7 cell viability was detected. The clonogenicity of MCF-7 cells was significantly suppressed by AKBA increment in comparison with untreated cells. RESULT Morphologically, exposure of MCF-7 cells to high AKBA concentrations caused changes in cell nuclear morphology which was indicated by increasing in nuclear size and cell permeability intensity. The mitochondrial membrane potential (ΔΨm) was reduced by increasing AKBA concentration with a significant release of cytochrome c. Acridine orange/ethidium bromide dual staining experiment confirmed that MCF-7 cells treated with AKBA (IC50 concentration) displayed a late stage of apoptosis indicated by intense and bright reddish colour. CONCLUSION A significant increase in reactive oxygen species formation was observed. Caspase 8 and caspase 9 activities were estimated and AKBA activated the production of caspase 8 and caspase 9 in a dose-dependent pattern. Finally, the cell phase distribution analysis was conducted, and flow cytometric analysis showed that AKBA at 200 μg mL-1 significantly arrest MCF-7 cells at the G1 phase and triggered apoptosis.
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Affiliation(s)
- Saja A Ahmed
- Department of Molecular and Medical Biotechnology, College of Biotechnology, Al-Nahrain University, Baghdad, Iraq
| | | | - Ali Z Al-Saffar
- Department of Molecular and Medical Biotechnology, College of Biotechnology, Al-Nahrain University, Baghdad, Iraq.
| | - Alene Tawang
- Department of Biology, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900, Tanjong Malim, Perak, Malaysia
| | - Jameel R Al-Obaidi
- Department of Biology, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900, Tanjong Malim, Perak, Malaysia.
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10
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Campellone KG, Lebek NM, King VL. Branching out in different directions: Emerging cellular functions for the Arp2/3 complex and WASP-family actin nucleation factors. Eur J Cell Biol 2023; 102:151301. [PMID: 36907023 DOI: 10.1016/j.ejcb.2023.151301] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 02/07/2023] [Accepted: 02/25/2023] [Indexed: 03/06/2023] Open
Abstract
The actin cytoskeleton impacts practically every function of a eukaryotic cell. Historically, the best-characterized cytoskeletal activities are in cell morphogenesis, motility, and division. The structural and dynamic properties of the actin cytoskeleton are also crucial for establishing, maintaining, and changing the organization of membrane-bound organelles and other intracellular structures. Such activities are important in nearly all animal cells and tissues, although distinct anatomical regions and physiological systems rely on different regulatory factors. Recent work indicates that the Arp2/3 complex, a broadly expressed actin nucleator, drives actin assembly during several intracellular stress response pathways. These newly described Arp2/3-mediated cytoskeletal rearrangements are coordinated by members of the Wiskott-Aldrich Syndrome Protein (WASP) family of actin nucleation-promoting factors. Thus, the Arp2/3 complex and WASP-family proteins are emerging as crucial players in cytoplasmic and nuclear activities including autophagy, apoptosis, chromatin dynamics, and DNA repair. Characterizations of the functions of the actin assembly machinery in such stress response mechanisms are advancing our understanding of both normal and pathogenic processes, and hold great promise for providing insights into organismal development and interventions for disease.
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Affiliation(s)
- Kenneth G Campellone
- Department of Molecular and Cell Biology, Institute for Systems Genomics; University of Connecticut; Storrs, CT, USA.
| | - Nadine M Lebek
- Department of Molecular and Cell Biology, Institute for Systems Genomics; University of Connecticut; Storrs, CT, USA
| | - Virginia L King
- Department of Molecular and Cell Biology, Institute for Systems Genomics; University of Connecticut; Storrs, CT, USA
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11
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Zhang X, Zhang H, Zhang J, Yang M, Zhu M, Yin Y, Fan X, Yu F. The paradoxical role of radiation-induced cGAS-STING signalling network in tumour immunity. Immunology 2023; 168:375-388. [PMID: 36217274 DOI: 10.1111/imm.13592] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 10/06/2022] [Indexed: 11/27/2022] Open
Abstract
The cyclic GMP-AMP synthase-stimulator of interferon genes (cGAS-STING) pathway is an essential component of the innate immune system and is central to the identification of abnormal DNA leakage caused by ionising radiation (IR) damage. Cell-intrinsic cGAS-STING initiation has been revealed to have tremendous potential for facilitating interferon synthesis and T-cell priming. Targeting the cGAS-STING axis has been proposed as a strategy to improve radiosensitivity or enhance immunosurveillance. However, due to the complex biology of the irradiated tumour microenvironment and the extensive involvement of the cGAS-STING pathway in various physiological and pathological processes, many defects in this strategy limit the therapeutic effect. Here, we outline the molecular mechanisms by which IR activates the cGAS-STING pathway and analyse the dichotomous roles of the cGAS-STING pathway in modulating cancer immunity after radiotherapy (RT). Then, based on the crosstalk between the cGAS-STING pathway and other signalling events induced by IR, such as necroptosis, autophagy and other cellular effects, we discuss the immunomodulatory actions of the broad cGAS-STING signalling network in RT and their potential therapeutic applications. Finally, recent advances in combination therapeutic strategies targeting cGAS-STING in RT are explored.
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Affiliation(s)
- Xiaoyi Zhang
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Nuclear Medicine, Tongji University School of Medicine, Shanghai, China
| | - Han Zhang
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Nuclear Medicine, Tongji University School of Medicine, Shanghai, China
| | - Jiajia Zhang
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Nuclear Medicine, Tongji University School of Medicine, Shanghai, China
| | - Mengdie Yang
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Nuclear Medicine, Tongji University School of Medicine, Shanghai, China
| | - Mengqin Zhu
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Nuclear Medicine, Tongji University School of Medicine, Shanghai, China
| | - Yuzhen Yin
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Nuclear Medicine, Tongji University School of Medicine, Shanghai, China
| | - Xin Fan
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Nuclear Medicine, Tongji University School of Medicine, Shanghai, China
| | - Fei Yu
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Nuclear Medicine, Tongji University School of Medicine, Shanghai, China
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12
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Kumar S, Verma A, Yadav P, Dubey SK, Azhar EI, Maitra SS, Dwivedi VD. Molecular pathogenesis of Japanese encephalitis and possible therapeutic strategies. Arch Virol 2022; 167:1739-1762. [PMID: 35654913 PMCID: PMC9162114 DOI: 10.1007/s00705-022-05481-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 03/10/2022] [Indexed: 12/26/2022]
Abstract
Japanese encephalitis virus (JEV), a single-stranded, enveloped RNA virus, is a health concern across Asian countries, associated with severe neurological disorders, especially in children. Primarily, pigs, bats, and birds are the natural hosts for JEV, but humans are infected incidentally. JEV requires a few host proteins for its entry and replication inside the mammalian host cell. The endoplasmic reticulum (ER) plays a significant role in JEV genome replication and assembly. During this process, the ER undergoes stress due to its remodelling and accumulation of viral particles and unfolded proteins, leading to an unfolded protein response (UPR). Here, we review the overall strategy used by JEV to infect the host cell and various cytopathic effects caused by JEV infection. We also highlight the role of JEV structural proteins (SPs) and non-structural proteins (NSPs) at various stages of the JEV life cycle that are involved in up- and downregulation of different host proteins and are potentially relevant for developing efficient therapeutic drugs.
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Affiliation(s)
- Sanjay Kumar
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067 India
- Center for Bioinformatics, Computational and Systems Biology, Pathfinder Research and Training Foundation, Greater Noida, India
| | - Akanksha Verma
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067 India
| | - Pardeep Yadav
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, Uttar Pradesh 201310 India
- Center for Bioinformatics, Computational and Systems Biology, Pathfinder Research and Training Foundation, Greater Noida, India
| | | | - Esam Ibraheem Azhar
- Special Infectious Agents Unit-BSL3, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, 21589 Saudi Arabia
| | - S. S. Maitra
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067 India
| | - Vivek Dhar Dwivedi
- Center for Bioinformatics, Computational and Systems Biology, Pathfinder Research and Training Foundation, Greater Noida, India
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13
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Khan H, Verma Y, Rana SVS. Significance of Inflammation and Apoptosis in Hepatocellular Death in Rat, Co-treated with Arsenic and Fluoride. Biol Trace Elem Res 2022; 200:3227-3235. [PMID: 34850329 DOI: 10.1007/s12011-021-02929-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/11/2021] [Indexed: 11/27/2022]
Abstract
Health effects elicited by combined environmental exposures to xenobiotics, in many instances, still remain unresolved. One of these examples is the combined toxicity of arsenic and fluoride. The present study was undertaken to delineate the role of inflammation and apoptosis in hepatocellular death caused by co-exposure to arsenic and fluoride in rat. Sodium arsenate (4 mg/kg body weight) and sodium fluoride (4 mg/kg body weight) were administered to female Wistar rats, individually and in combination, for 90 days. Results on tumor necrotic factor-α (TNF-α), interleukin-12 (IL-12), and comet assay showed increased values in comparison to those obtained in arsenic- or fluoride-treated rats. Results on NO, TBARS, and caspase-9 showed higher values than fluoride-treated rats but lower levels than arsenic-treated rats. It is hypothesized that increased generation of nitric oxide induces the release of cytokines that activates caspase-9. Caspase-9 promotes the synthesis of caspase-3 that executes apoptosis. Histopathological observations on apoptotic bodies and Kupffer cells support these observations.
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Affiliation(s)
- Huma Khan
- Department of Toxicology, Chaudhary Charan Singh University, Meerut, 250004, India
| | - Yeshvandra Verma
- Department of Toxicology, Chaudhary Charan Singh University, Meerut, 250004, India
| | - S V S Rana
- Department of Toxicology, Chaudhary Charan Singh University, Meerut, 250004, India.
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14
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Zhang Y, Chen L, Sun R, Lv R, Du T, Li Y, Zhang X, Sheng R, Qi Y. Multienzymatic Antioxidant Activity of Manganese-Based Nanoparticles for Protection against Oxidative Cell Damage. ACS Biomater Sci Eng 2022; 8:638-648. [DOI: 10.1021/acsbiomaterials.1c01286] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yang Zhang
- School of Public Health, Jilin University, Changchun, Jilin 130021, P. R. China
| | - Lixia Chen
- School of Public Health, Jilin University, Changchun, Jilin 130021, P. R. China
| | - Ruimeng Sun
- School of Public Health, Jilin University, Changchun, Jilin 130021, P. R. China
| | - Ruijuan Lv
- School of Public Health, Jilin University, Changchun, Jilin 130021, P. R. China
| | - Ting Du
- School of Public Health, Jilin University, Changchun, Jilin 130021, P. R. China
| | - Yuhan Li
- School of Public Health, Jilin University, Changchun, Jilin 130021, P. R. China
| | - Xinming Zhang
- School of Public Health, Jilin University, Changchun, Jilin 130021, P. R. China
| | - Rongtian Sheng
- School of Public Health, Jilin University, Changchun, Jilin 130021, P. R. China
| | - Yanfei Qi
- School of Public Health, Jilin University, Changchun, Jilin 130021, P. R. China
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15
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Maharana J, Maharana D, Bej A, Sahoo BR, Panda D, Wadavrao SB, Vats A, Pradhan SK, De S. Structural Elucidation of Inter-CARD Interfaces involved in NOD2 Tandem CARD Association and RIP2 Recognition. J Phys Chem B 2021; 125:13349-13365. [PMID: 34860029 DOI: 10.1021/acs.jpcb.1c06176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Nucleotide-binding and oligomerization domain-containing protein 2 (NOD2) recognizes the muramyl dipeptide and activates the NF-κB signaling cascade following its interaction with receptor-interacting protein 2 (RIP2) via caspase recruitment domains (CARDs). The NOD2-RIP2 interaction is not understood well due to inadequate structural information. Using comparative modeling and multimicrosecond timescale molecular dynamics simulations, we have demonstrated the association of NOD2-CARDs (CARDa-CARDb) and their interaction with RIP2CARD. Our results suggest that a negatively charged interface of NOD2CARDa and positively charged type-Ia interface of NOD2CARDb are crucial for CARDa-CARDb association and the type-Ia interface of NOD2CARDa and type-Ib interface of RIP2CARD predicted to be involved in 1:1 CARD-CARD interaction. Moreover, the direct interaction of NOD2CARDb with RIP2CARD signifies the importance of both CARDs of NOD2 in RIP2-mediated CARD-CARD interaction. Altogether, the structural results could help in understanding the underlying molecular details of the NOD2-RIP2 association in higher and lower eukaryotes.
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Affiliation(s)
- Jitendra Maharana
- Department of Bioinformatics, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha 751001, India
| | - Diptimayee Maharana
- AEBN Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, West Bengal 700120, India
| | - Aritra Bej
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Bikash R Sahoo
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Debashis Panda
- DBT-APSCS&T, Centre of Excellence for Bioresources and Sustainable Development, Kimin, Arunachal Pradesh 791121, India
| | - Sachin B Wadavrao
- OBC Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana 500007, India
| | - Ashutosh Vats
- Animal Genomics Lab., Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, Haryana 132001, India
| | - Sukanta K Pradhan
- Department of Bioinformatics, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha 751001, India
| | - Sachinandan De
- Animal Genomics Lab., Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, Haryana 132001, India
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16
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Sahebazzamani F, Hosseinkhani S, Eriksson LA, Fearnhead HO. Apoptosome Formation through Disruption of the K192-D616 Salt Bridge in the Apaf-1 Closed Form. ACS OMEGA 2021; 6:22551-22558. [PMID: 34514227 PMCID: PMC8427654 DOI: 10.1021/acsomega.1c02274] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 06/28/2021] [Indexed: 06/13/2023]
Abstract
The molecular mechanism of apoptosome activation through conformational changes of Apaf-1 auto-inhibited form remains largely enigmatic. The crystal structure of Apaf-1 suggests that some ionic bonds, including the bond between K192 and D616, are critical for the preservation of the inactive "closed" form of Apaf-1. Here, a split luciferase complementation assay was used to monitor the effect of disrupting this ionic bond on apoptosome activation and caspase-3 activity in cells. The K192E mutation, predicted to disrupt the ionic interaction with D616, increased apoptosome formation and caspase activity, suggesting that this mutation favors the "open"/active form of Apaf-1. However, mutation of D616 to alanine or lysine had different effects. While both mutants favored apoptosome formation such as K192E, D616K cannot activate caspases and D616A activates caspases poorly, and not as well as wild-type Apaf-1. Thus, our data show that the ionic bond between K192 and D616 is critical for maintaining the closed form of Apaf-1 and that disrupting the interaction enhances apoptosome formation. However, our data also reveal that after apoptosome formation, D616 and K192 play a previously unsuspected role in caspase activation. The molecular explanation for this observation is yet to be elucidated.
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Affiliation(s)
- Fatemeh Sahebazzamani
- Department
of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Saman Hosseinkhani
- Department
of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Leif A. Eriksson
- Department
of Chemistry and Molecular Biology, University
of Gothenburg, Göteborg 405 30, Sweden
| | - Howard O. Fearnhead
- Pharmacology
and Therapeutics, School of Medicine, NUI
Galway, Galway, Ireland
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17
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Reactive Oxygen Species (ROS) Regulates Different Types of Cell Death by Acting as a Rheostat. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:9912436. [PMID: 34426760 PMCID: PMC8380163 DOI: 10.1155/2021/9912436] [Citation(s) in RCA: 115] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 06/14/2021] [Accepted: 07/24/2021] [Indexed: 12/14/2022]
Abstract
Reactive oxygen species (ROS) are essential for cellular signaling and response to stress. The level of ROS and the type of ROS determine the ability of cells to undergo cell death. Furthermore, dysregulation of the antioxidant pathways is associated with many diseases. It has become apparent that cell death can occur through different mechanisms leading to the classifications of different types of cell death such as apoptosis, ferroptosis, and necroptosis. ROS play essential roles in all forms of cell death, but it is only now coming into focus that ROS control and determine the type of cell death that occurs in any given cell. Indeed, ROS may act as a rheostat allowing different cell death mechanisms to be engaged and crosstalk with different cell death types. In this review, we will describe the ROS regulatory pathways and how they control different types of cell death under normal and disease states. We will also propose how ROS could provide a mechanism of crosstalk between cell death mechanisms and act as a rheostat determining the type of cell death.
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18
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Contribution of Apaf-1 to the pathogenesis of cancer and neurodegenerative diseases. Biochimie 2021; 190:91-110. [PMID: 34298080 DOI: 10.1016/j.biochi.2021.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/24/2021] [Accepted: 07/12/2021] [Indexed: 01/02/2023]
Abstract
Deregulation of apoptosis is associated with various pathologies, such as neurodegenerative disorders at one end of the spectrum and cancer at the other end. Generally speaking, differentiated cells like cardiomyocytes, skeletal myocytes and neurons exhibit low levels of Apaf-1 (Apoptotic protease activating factor 1) protein suggesting that down-regulation of Apaf-1 is an important event contributing to the resistance of these cells to apoptosis. Nonetheless, upregulation of Apaf-1 has not emerged as a common phenomenon in pathologies associated with enhanced neuronal cell death, i.e., neurodegenerative diseases. In cancer, on the other hand, Apaf-1 downregulation is a common phenomenon, which occurs through various mechanisms including mRNA hyper-methylation, gene methylation, Apaf-1 localization in lipid rafts, inhibition by microRNAs, phosphorylation, and interaction with specific inhibitors. Due to the diversity of these mechanisms and involvement of other factors, defining the exact contribution of Apaf-1 to the development of cancer in general and neurodegenerative disorders, in particular, is complicated. The current review is an attempt to provide a comprehensive image of Apaf-1's contribution to the pathologies observed in cancer and neurodegenerative diseases with the emphasis on the therapeutic aspects of Apaf-1 as an important target in these pathologies.
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19
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Ankawa R, Goldberger N, Yosefzon Y, Koren E, Yusupova M, Rosner D, Feldman A, Baror-Sebban S, Buganim Y, Simon DJ, Tessier-Lavigne M, Fuchs Y. Apoptotic cells represent a dynamic stem cell niche governing proliferation and tissue regeneration. Dev Cell 2021; 56:1900-1916.e5. [PMID: 34197726 DOI: 10.1016/j.devcel.2021.06.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 12/14/2020] [Accepted: 06/09/2021] [Indexed: 12/17/2022]
Abstract
Stem cells (SCs) play a key role in homeostasis and repair. While many studies have focused on SC self-renewal and differentiation, little is known regarding the molecular mechanism regulating SC elimination and compensation upon loss. Here, we report that Caspase-9 deletion in hair follicle SCs (HFSCs) attenuates the apoptotic cascade, resulting in significant temporal delays. Surprisingly, Casp9-deficient HFSCs accumulate high levels of cleaved caspase-3 and are improperly cleared due to an essential caspase-3/caspase-9 feedforward loop. These SCs are retained in an apoptotic-engaged state, serving as mitogenic signaling centers by continuously releasing Wnt3 and instructing proliferation. Investigating the underlying mechanism, we reveal a caspase-3/Dusp8/p38 module responsible for Wnt3 induction, which operates in both normal and Casp9-deleted HFSCs. Notably, Casp9-deleted mice display accelerated wound repair and de novo hair follicle regeneration. Taken together, we demonstrate that apoptotic cells represent a dynamic SC niche, from which emanating signals drive SC proliferation and tissue regeneration.
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Affiliation(s)
- Roi Ankawa
- Laboratory of Stem Cell Biology and Regenerative Medicine, Department of Biology, Technion - Israel Institute of Technology, Haifa, Israel
| | - Nitzan Goldberger
- Laboratory of Stem Cell Biology and Regenerative Medicine, Department of Biology, Technion - Israel Institute of Technology, Haifa, Israel
| | - Yahav Yosefzon
- Laboratory of Stem Cell Biology and Regenerative Medicine, Department of Biology, Technion - Israel Institute of Technology, Haifa, Israel
| | - Elle Koren
- Laboratory of Stem Cell Biology and Regenerative Medicine, Department of Biology, Technion - Israel Institute of Technology, Haifa, Israel
| | - Marianna Yusupova
- Laboratory of Stem Cell Biology and Regenerative Medicine, Department of Biology, Technion - Israel Institute of Technology, Haifa, Israel
| | - Daniel Rosner
- Laboratory of Stem Cell Biology and Regenerative Medicine, Department of Biology, Technion - Israel Institute of Technology, Haifa, Israel
| | - Alona Feldman
- Laboratory of Stem Cell Biology and Regenerative Medicine, Department of Biology, Technion - Israel Institute of Technology, Haifa, Israel
| | - Shulamit Baror-Sebban
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, the Hebrew University of Jerusalem, Hadassah Medical School, Jerusalem, Israel
| | - Yosef Buganim
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, the Hebrew University of Jerusalem, Hadassah Medical School, Jerusalem, Israel
| | - David J Simon
- Department of Biochemistry, Weill Cornell Medical College, New York, NY 10065, USA
| | | | - Yaron Fuchs
- Laboratory of Stem Cell Biology and Regenerative Medicine, Department of Biology, Technion - Israel Institute of Technology, Haifa, Israel.
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20
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Pan L, Liu Y, Lan H, Bao N, Zhao Y, Sun H, Qin G, Farouk MH. Biological Mechanisms Induced by Soybean Agglutinin Using an Intestinal Cell Model of Monogastric Animals. Front Vet Sci 2021; 8:639792. [PMID: 34150879 PMCID: PMC8207199 DOI: 10.3389/fvets.2021.639792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 04/30/2021] [Indexed: 11/30/2022] Open
Abstract
Soybean agglutinin (SBA) has a toxic effect on most animals. The anti-nutritional mechanisms of SBA are not fully understood, in terms of cell survival activity and metabolism of intestinal cells. This study aims to investigate the effects of SBA on the cell cycle, apoptosis, and to verify the mechanism of SBA anti-nutritional characters based on proteomic-based analysis. The IPEC-J2 cell line was cultured with medium containing 0.0, 0.5, or 2.0 mg/mL SBA. With increasing SBA levels, the percentage of the cells at G0/G1 phase, cell apoptosis rates, expressions of Bax and p21, and the activities of Casp-3 and Casp-9 were increased, while cyclin D1 and Bcl-2 expressions were declined (p < 0.05). The proteomic analysis showed that the numbers of differentially expressed proteins, induced by SBA, were mainly enriched in different pathways including DNA replication, base excision repair, nucleus excision repair, mismatch repair, amide and peptide biosynthesis, ubiquitin-mediated proteolysis, as well as structures and functions of mitochondria and ribosome. In conclusion, the anti-nutritional mechanism of SBA is a complex cellular process. Such process including DNA related activities; protein synthesis and metabolism; signal-conducting relation; as well as subcellular structure and function. This study provides comprehensive information to understand the toxic mechanism of SBA in monogastrics.
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Affiliation(s)
- Li Pan
- Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Yan Liu
- Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Hainan Lan
- Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Nan Bao
- Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Yuan Zhao
- Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Hui Sun
- Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Guixin Qin
- Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Mohammed Hamdy Farouk
- Animal Production Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
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21
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Lee HK, Park SH, Nam MJ. Proteasome inhibitor MG132 induces apoptosis in human osteosarcoma U2OS cells. Hum Exp Toxicol 2021; 40:1985-1997. [PMID: 34002651 DOI: 10.1177/09603271211017972] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
MG132 is a potent, reversible, and cell-permeable 20S proteasome inhibitor and it is derived from a Chinese medicinal plant. The purpose of this study is to investigate the anticancer effects of MG132 against human osteosarcoma U2OS cells. We first performed MTT and colony formation assays to investigate the anti-proliferative effects of MG132. The results demonstrated that MG132 suppressed the proliferation of U2OS cells. Furthermore, we found that treatment with MG132 increased apoptosis and induced DNA damage in U2OS cells. Additionally, zymography, wound healing, and invasion assays showed that MG132 suppressed the enzymatic activity of matrix metalloproteinases, cell migration, and invasion, respectively of U2OS cells. Furthermore, western blotting assay was performed to investigate the apoptotic signaling pathways in MG132-treated U2OS cells. Our results showed that MG132 downregulated the expression of antiapoptotic proteins, including CDK2, CDK4, Bcl-xL, and Bcl-2, whereas it upregulated the expression of proapoptotic proteins, including p21, p27, p53, p-p53 (ser15, ser20, and ser46), cleaved forms of caspase-3, caspase-7, caspase-9, and PARP, and FOXO3 in U2OS cells. These results demonstrated that MG132 activated apoptotic signaling pathways in U2OS cells. Interestingly, MG132 downregulated the phosphorylation of Akt and Erk. Taken together, our results suggest that MG132 has anticancer effects in U2OS cells. Therefore, MG132 may be a potential therapeutic agent for the treatment of osteosarcoma.
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Affiliation(s)
- Han Ki Lee
- Department of Biological Science, Gachon University, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - See-Hyoung Park
- Department of Bio and Chemical Engineering, Hongik University, Sejong, Republic of Korea
| | - Myeong Jin Nam
- Department of Biological Science, Gachon University, Seongnam-si, Gyeonggi-do, Republic of Korea
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22
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Mashima T, Rosier BJHM, Oohora K, de Greef TFA, Hayashi T, Brunsveld L. Dynamic Protease Activation on a Multimeric Synthetic Protein Scaffold via Adaptable DNA-Based Recruitment Domains. Angew Chem Int Ed Engl 2021; 60:11262-11266. [PMID: 33725379 PMCID: PMC8252739 DOI: 10.1002/anie.202102160] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Indexed: 12/21/2022]
Abstract
Hexameric hemoprotein (HTHP) is employed as a scaffold protein for the supramolecular assembly and activation of the apoptotic signalling enzyme caspase-9, using short DNA elements as modular recruitment domains. Caspase-9 assembly and activation on the HTHP platform due to enhanced proximity is followed by combinatorial inhibition at high scaffold concentrations. The DNA recruitment domains allow for reversible switching of the caspase-9 assembly and activity state using short modulatory DNA strands. Tuning of the recruitment domain affinity allows for generating kinetically trapped active enzyme complexes, as well as for dynamic repositioning of caspases over scaffold populations and inhibition using monovalent sink platforms. The conceptual combination of a highly structured multivalent protein platform with modular DNA recruitment domains provides emergent biomimicry properties with advanced levels of control over protein assembly.
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Affiliation(s)
- Tsuyoshi Mashima
- Institute for Complex Molecular Systems andLaboratory of Chemical BiologyDepartment of Biomedical EngineeringEindhoven University of TechnologyP.O. Box 513, 5600MBEindhovenThe Netherlands
| | - Bas J. H. M. Rosier
- Institute for Complex Molecular Systems andLaboratory of Chemical BiologyDepartment of Biomedical EngineeringEindhoven University of TechnologyP.O. Box 513, 5600MBEindhovenThe Netherlands
| | - Koji Oohora
- Department of Applied ChemistryGraduate School of EngineeringOsaka UniversitySuita 565–0871OsakaJapan
| | - Tom F. A. de Greef
- Institute for Complex Molecular Systems andLaboratory of Chemical BiologyDepartment of Biomedical EngineeringEindhoven University of TechnologyP.O. Box 513, 5600MBEindhovenThe Netherlands
- Computational Biology groupDepartment of Biomedical EngineeringEindhoven University of TechnologyEindhovenThe Netherlands
| | - Takashi Hayashi
- Department of Applied ChemistryGraduate School of EngineeringOsaka UniversitySuita 565–0871OsakaJapan
| | - Luc Brunsveld
- Institute for Complex Molecular Systems andLaboratory of Chemical BiologyDepartment of Biomedical EngineeringEindhoven University of TechnologyP.O. Box 513, 5600MBEindhovenThe Netherlands
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23
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Mashima T, Rosier BJHM, Oohora K, Greef TFA, Hayashi T, Brunsveld L. Dynamic Protease Activation on a Multimeric Synthetic Protein Scaffold via Adaptable DNA‐Based Recruitment Domains. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tsuyoshi Mashima
- Institute for Complex Molecular Systems and Laboratory of Chemical Biology Department of Biomedical Engineering Eindhoven University of Technology P.O. Box 513, 5600 MB Eindhoven The Netherlands
| | - Bas J. H. M. Rosier
- Institute for Complex Molecular Systems and Laboratory of Chemical Biology Department of Biomedical Engineering Eindhoven University of Technology P.O. Box 513, 5600 MB Eindhoven The Netherlands
| | - Koji Oohora
- Department of Applied Chemistry Graduate School of Engineering Osaka University Suita 565–0871 Osaka Japan
| | - Tom F. A. Greef
- Institute for Complex Molecular Systems and Laboratory of Chemical Biology Department of Biomedical Engineering Eindhoven University of Technology P.O. Box 513, 5600 MB Eindhoven The Netherlands
- Computational Biology group Department of Biomedical Engineering Eindhoven University of Technology Eindhoven The Netherlands
| | - Takashi Hayashi
- Department of Applied Chemistry Graduate School of Engineering Osaka University Suita 565–0871 Osaka Japan
| | - Luc Brunsveld
- Institute for Complex Molecular Systems and Laboratory of Chemical Biology Department of Biomedical Engineering Eindhoven University of Technology P.O. Box 513, 5600 MB Eindhoven The Netherlands
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Zhang S, Zhang B, Zhang Q, Zhang Z. Crotonaldehyde exposure induces liver dysfunction and mitochondrial energy metabolism disorder in rats. Toxicol Mech Methods 2021; 31:425-436. [PMID: 33749501 DOI: 10.1080/15376516.2021.1904073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Crotonaldehyde is a highly toxic pollutant, widely present in tobacco smoke and automobile exhaust. Exposure to crotonaldehyde can cause hepatotoxicity and induce liver tumors in rats; however, the underlying mechanism is unclear. Liver cells contain many mitochondria, which serve to maintain energy levels in the body. We hypothesized that the energy metabolism disorder caused by mitochondrial dysfunction is an important cause of liver injury in rats exposed to crotonaldehyde. To test this, we randomly divided 40 male Wistar rats into four groups, and provided crotonaldehyde at 0, 2.5, 4.5, and 8.5 mg/kg for 90 days by intragastric administration. The results showed that crotonaldehyde exposure caused damage to liver mitochondrial structure, reduced electron-transport chain activity and ATP levels, and interfered with mitochondrial DNA transcription. In response to increased crotonaldehyde exposure, rats exhibited increased reactive oxygen species levels, decreased superoxide dismutase and glutathione activity, and activation of the caspase-mediated apoptosis pathway, as well as elevated levels of alanine aminotransferase, aspartate aminotransferase, total bilirubin, and histopathological damage. Our findings, together with those of previous reports, should help elucidate the underlying mechanism of crotonaldehyde-induced mitochondrial dysfunction and energy metabolism disorder, and provide an important direction for the prevention and clinical intervention of liver diseases caused by crotonaldehyde and aldehydes with similar structures.
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Affiliation(s)
- Shuman Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Biao Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Qi Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Zhihu Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
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25
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Xu W, Che Y, Zhang Q, Huang H, Ding C, Wang Y, Wang G, Cao L, Hao H. Apaf-1 Pyroptosome Senses Mitochondrial Permeability Transition. Cell Metab 2021; 33:424-436.e10. [PMID: 33308446 DOI: 10.1016/j.cmet.2020.11.018] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 09/09/2020] [Accepted: 11/20/2020] [Indexed: 12/24/2022]
Abstract
Caspase-4 is an intracellular sensor for cytosolic bacterial lipopolysaccharide (LPS) and underlies infection-elicited pyroptosis. It is unclear whether and how caspase-4 detects host-derived factors to trigger pyroptosis. Here we show that mitochondrial permeability transition (MPT) activates caspase-4 by promoting the assembly of a protein complex, which we term the Apaf-1 pyroptosome, for the execution of facilitated pyroptosis. MPT, when induced by bile acids, calcium overload, or an adenine nucleotide translocator 1 (ANT1) activator, triggers assembly of the pyroptosome comprised of Apaf-1 and caspase-4 with a stoichiometry ratio of 7:2. Unlike the direct cleavage of gasdermin D (GSDMD) by caspase-4 upon LPS ligation, caspase-4 activated in the Apaf-1 pyroptosome proceeds to cleave caspase-3 and thereby GSDME to induce pyroptosis. Caspase-4-initiated and GSDME-executed pyroptosis underlies cholestatic liver failure. These findings identify Apaf-1 pyroptosome as a pivotal machinery for cells sensing MPT signals and may shed light on understanding how cells execute intrinsic pyroptosis under sterile conditions.
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Affiliation(s)
- Wanfeng Xu
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism, China Pharmaceutical University, Nanjing, China
| | - Yuan Che
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism, China Pharmaceutical University, Nanjing, China
| | - Quan Zhang
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism, China Pharmaceutical University, Nanjing, China
| | - Hai Huang
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism, China Pharmaceutical University, Nanjing, China
| | - Chujie Ding
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism, China Pharmaceutical University, Nanjing, China
| | - Yun Wang
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism, China Pharmaceutical University, Nanjing, China
| | - Guangji Wang
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism, China Pharmaceutical University, Nanjing, China
| | - Lijuan Cao
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism, China Pharmaceutical University, Nanjing, China.
| | - Haiping Hao
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism, China Pharmaceutical University, Nanjing, China.
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26
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Li H, Fan TJ, Zou P, Xu B. Diclofenac Sodium Triggers p53-Dependent Apoptosis in Human Corneal Epithelial Cells via ROS-Mediated Crosstalk. Chem Res Toxicol 2020; 34:70-79. [PMID: 33356180 DOI: 10.1021/acs.chemrestox.0c00319] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Diclofenac sodium (DFS), a nonsteroidal anti-inflammatory drug, is frequently used in ophthalmology, but it causes negative effects on corneas. The mechanisms underlying the toxicities to corneas remains unclear. The present study was designed to assess the cytotoxicity of DFS to human corneal epithelial (HCEP) cells in vitro and further investigate its related mechanisms. The HCEP cells were treated with DFS at different concentrations ranging from 0.003 125% to 0.1%. DFS showed a dose- and time-dependent cytotoxicity to HCEP cells including abnormal morphology and declined viability. The 0.05% DFS-treated HCEP cells presented cell cycle arrest at S phase, reactive oxygen species (ROS) overproduction, and positive staining of phosphorylated H2AX, suggesting that DFS caused ROS-mediated DNA damage. The upregulation of p53 expression, formation of apoptotic body, phosphatidylserine externalization, and DNA ladder demonstrated that the p53-dependent apoptosis pathway was involved in the cytotoxicity of DFS. Furthermore, DFS activated caspase-8, caspase-9, and caspase-3 altered the expression levels of Bcl-2 family proteins including tBid, Bax, and Bcl-2, as well as increased poly(ADP-ribose) polymerase (PARP) cleavage. DFS also induced ΔΨm disruption, resulting in the release of cytochrome c and apoptosis-inducing factor into the cytoplasm. Additionally, the DFS-induced apoptosis was alleviated by p53 inhibitor. Taken together, DFS triggered p53-dependent apoptosis in HCEP cells via ROS-mediated crosstalk between the extrinsic and intrinsic pathways.
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Affiliation(s)
- Hui Li
- Laboratory for Corneal Tissue Engineering, College of Marine Life Sciences, Ocean University of China, Qingdao, Shandong 266100, China
| | - Ting-Jun Fan
- Laboratory for Corneal Tissue Engineering, College of Marine Life Sciences, Ocean University of China, Qingdao, Shandong 266100, China
| | - Ping Zou
- Marine Agriculture Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266101, China
| | - Bin Xu
- Laboratory for Corneal Tissue Engineering, College of Marine Life Sciences, Ocean University of China, Qingdao, Shandong 266100, China
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27
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Ke Y, Fan X, Rui H, Xinjun R, Dejia W, Chuanzhen Z, Li X. Exosomes derived from RPE cells under oxidative stress mediate inflammation and apoptosis of normal RPE cells through Apaf1/caspase-9 axis. J Cell Biochem 2020; 121:4849-4861. [PMID: 32277521 DOI: 10.1002/jcb.29713] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Accepted: 02/12/2020] [Indexed: 12/26/2022]
Abstract
This study aims to explore the effects of exosomes, secreted by retinal pigment epithelial (RPE) cells under oxidative stress (OS), on apoptosis and inflammation of normal RPE cells. Exosomes secreted by normal RPE cells (named as exo) and rotenone (2.5 µmol/L) stimulated RPE cells (named as rot-exo) were isolated and extracted by multi-step differential centrifugation for morphology observation under a transmission electron microscopy. pcDNA3.1a, pcDNA3.1a-Apaf1, and p3xFlag-CMV-caspase-9 plasmids were constructed and transfected into ARPE-19 cells. Exosomes secreted by ARPE-19 cells were injected into the vitreous body of rats to verify the effect of Apaf1 and caspase-9 on cell apoptosis and inflammation. Co-immunoprecipitation was applied to clarify the interaction of Apaf1 with caspase-9. Exosomes secreted by rotenone stimulated ARPE-19 cells could induce cell apoptosis, oxidative injury, and inflammation in ARPE-19 cells. Exosomes secreted under OS can damage retinal functions of rats and have upregulated expression of Apaf1. Overexpression of Apaf1 in exosomes secreted under OS can cause the inhibition of cell proliferation, the increase of cell apoptosis and elicitation of inflammatory response in ARPE-19 cells. Exosomes derived from ARPE-19 cells under OS regulate Apaf1 expression to increase cell apoptosis and to induce oxidative injury and inflammatory response through a caspase-9 apoptotic pathway.
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Affiliation(s)
- Yifeng Ke
- Tianjin Key Laboratory of Retinal Functions and Diseases, Eye Institute and School of Optometry, Vitreous Retina and Trauma Department, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Xiaoe Fan
- Ophthalmology Department, Jincheng People's Hospital, Jincheng, Shanxi, China
| | - Hao Rui
- Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Vision Science, Pediatric Ophthalmology and Strabismus Department, Nankai University Eye Hospital, Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China
| | - Ren Xinjun
- Tianjin Key Laboratory of Retinal Functions and Diseases, Eye Institute and School of Optometry, Vitreous Retina and Trauma Department, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Wen Dejia
- Tianjin Key Laboratory of Retinal Functions and Diseases, Eye Institute and School of Optometry, Vitreous Retina and Trauma Department, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Zheng Chuanzhen
- Tianjin Key Laboratory of Retinal Functions and Diseases, Eye Institute and School of Optometry, Vitreous Retina and Trauma Department, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Xiaorong Li
- Tianjin Key Laboratory of Retinal Functions and Diseases, Eye Institute and School of Optometry, Vitreous Retina and Trauma Department, Tianjin Medical University Eye Hospital, Tianjin, China
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Zhou C, Ma J, Lu Y, Zhao W, Xu B, Lin J, Ma Y, Tian Y, Zhang Q, Wang W, Yan W, Jiao P. TERT promoter regulating melittin expression induces apoptosis and G 0/G 1 cell cycle arrest in esophageal carcinoma cells. Oncol Lett 2020; 21:16. [PMID: 33240422 PMCID: PMC7681202 DOI: 10.3892/ol.2020.12277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 07/15/2020] [Indexed: 12/14/2022] Open
Abstract
Esophageal squamous cell carcinoma accounts for a large proportion of cancer-associated mortalities in both men and women. Melittin is the major active component of bee venom, which has been reported to possess anti-inflammatory, antibacterial and anti-cancer properties. The aim of the present study was to construct a tumor targeted recombinant plasmid [pc-telomerase reverse transcriptase (TERT)-melittin] containing a human TERT promoter followed by a melittin coding sequence and to explore the effects of this plasmid in esophageal cell carcinoma and investigate preliminarily the underlying mechanisms of this effect. TE1 cells were transfected with pcTERT-melittin and the resulting apoptosis was subsequently examined. The viability of TE1 cells transfected with pcTERT-melittin was measured using a Cell Counting Kit-8 assay, which indicated inhibited proliferation. The disruption of mitochondrial membranes and the concomitant production of reactive oxygen species demonstrated an inducible apoptotic effect of melittin in TE1 cells. Apoptotic cells were also counted using an Annexin V-FITC and PI double-staining assay. The upregulation of cleaved caspase-9, cleaved caspase-3, Bax and poly(ADP-ribose) polymerase 1 in pcTERT-melittin transfected TE1 cells, suggested that pcTERT-melittin-induced apoptosis was associated with the mitochondrial pathway. TE1 cells were also arrested in the G0/G1 phase when transfected with pcTERT-melittin, followed by the decline of CDK4, CDK6 and cyclin D1 expression levels. As cell invasion and metastasis are common in patients with esophageal cancer, a cell migration assay was conducted and it was found that pcTERT-melittin transfection reduced the migratory and invasive abilities of TE1 cells. The findings of the present study demonstrated that pcTERT-melittin may induce apoptosis of esophageal carcinoma cells and inhibit tumor metastasis.
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Affiliation(s)
- Chao Zhou
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Jie Ma
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yuanhua Lu
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Wan Zhao
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Bingxue Xu
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Jian Lin
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yongjun Ma
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yafei Tian
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Qi Zhang
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Wei Wang
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Weiqun Yan
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Ping Jiao
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
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Hosseini ES, Nikkhah M, Hamidieh AA, Fearnhead HO, Concordet JP, Hosseinkhani S. The Lumiptosome, an engineered luminescent form of the apoptosome can report cell death by using the same Apaf-1 dependent pathway. J Cell Sci 2020; 133:133/10/jcs242636. [DOI: 10.1242/jcs.242636] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 02/28/2020] [Indexed: 01/09/2023] Open
Abstract
ABSTRACT
Detection of the apoptosis signature becomes central in understanding cell death modes. We present here a whole-cell biosensor that detects Apaf-1 association and apoptosome formation using a split-luciferase complementary assay. Fusion of N-terminal (Nluc) and C-terminal (Cluc)-fragments of firefly luciferase to the N-terminus of human Apaf-1 was performed in HEK293 cells by using CRISPR-Cas9 technology. This resulted in a luminescent form of the apoptosome that we named ‘Lumiptosome’. During Apaf-1 gene editing, a high number of knock-in events were observed without selection, suggesting that the Apaf-1 locus is important for the integration of exogenous transgenes. Since activation of caspase-9 is directly dependent on the apoptosome formation, measured reconstitution of luciferase activity should result from the cooperative association of Nluc-Apaf-1 and Cluc-Apaf-1. Time-response measurements also confirmed that formation of the apoptosome occurs prior to activation of caspase-3. Additionally, overexpression of the Bcl2 apoptosis regulator in transgenic and normal HEK293 cells confirmed that formation of the Lumiptosome depends on release of cytochrome c. Thus, HEK293 cells that stably express the Lumiptosome can be utilized to screen pro- and anti-apoptotic drugs, and to examine Apaf-1-dependent cellular pathways.
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Affiliation(s)
- Elaheh Sadat Hosseini
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
- Department of Nanobiotechnology, Pharmacology and Therapeutics, School of Medicine, NUI, Galway, Ireland
- Department of Nanobiotechnology, Museum National d'Histoire Naturelle, Laboratoire Structure et Instabilité des Génomes - INSERM U1154 - CNRS 7196; Laboratoire de Biophysique, Sorbonne Universités, Paris, F-75231, France
| | - Maryam Nikkhah
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Amir Ali Hamidieh
- Pediatric Cell Therapy Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Howard O. Fearnhead
- Department of Nanobiotechnology, Pharmacology and Therapeutics, School of Medicine, NUI, Galway, Ireland
| | - Jean-Paul Concordet
- Department of Nanobiotechnology, Museum National d'Histoire Naturelle, Laboratoire Structure et Instabilité des Génomes - INSERM U1154 - CNRS 7196; Laboratoire de Biophysique, Sorbonne Universités, Paris, F-75231, France
| | - Saman Hosseinkhani
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran 14115-175, Iran
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Yang T, Fan TJ, Xu B. Norfloxacin induces apoptosis and necroptosis in human corneal epithelial cells. Toxicol In Vitro 2020; 66:104868. [PMID: 32320760 DOI: 10.1016/j.tiv.2020.104868] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 03/30/2020] [Accepted: 04/14/2020] [Indexed: 10/24/2022]
Abstract
Norfloxacin (NOR) is applied clinically to treat keratitis. However, NOR has brought severe side-effects for human corneal epithelium (HCEP) due to overdose and potential toxicity. In this study, two in vitro experimental models including monolayer HCEP cells and tissue-engineered human corneal epithelium (TE-HCEP) were used to explore the cytotoxicity and its related mechanisms. The HCEP cells treated with NOR at concentrations from 0.1875 to 3.0 mg/mL displayed abnormal morphology, declined viability, and increased plasma membrane permeability. Moreover, 0.75 mg/mL NOR induced chromatin condensation, S phase arrest, phosphatidylserine externalization, and formation of apoptotic body through activation of caspase-2/-8/-9/-3, downregulation of Bcl-2 and Bcl-xL, upregulation of Bad and Bax, mitochondrial transmembrane potential disruption and release of cytochrome c and apoptosis inducing factor into cytosol, whereas 1.5 mg/mL and 3.0 mg/mL NOR upregulated the expressions of receptor-interacting protein kinase 1 (RIPK1), RIPK3 and mixed lineage kinase domain-like (MLKL) together with inactivation of caspase-2/-8. Furthermore, 0.1875-3.0 mg/mL NOR destroyed the multilayer structure of TE-HCEP model due to a dose-dependent cytotoxicity, which validated the above results. Overall, low-dose (0.1875-0.75 mg/mL) NOR induced apoptosis through mitochondrion-dependent and death receptor-mediated pathways, and high-dose (1.5-3.0 mg/mL) NOR triggered necroptosis via RIPK1-RIPK3-MLKL cascade in HCEP cells.
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Affiliation(s)
- Ting Yang
- Laboratory for Corneal Tissue Engineering, College of Marine Life Sciences, Ocean University of China, Shandong Province, Qingdao 266003, China
| | - Ting-Jun Fan
- Laboratory for Corneal Tissue Engineering, College of Marine Life Sciences, Ocean University of China, Shandong Province, Qingdao 266003, China
| | - Bin Xu
- Laboratory for Corneal Tissue Engineering, College of Marine Life Sciences, Ocean University of China, Shandong Province, Qingdao 266003, China.
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31
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Boon L, Ugarte-Berzal E, Vandooren J, Opdenakker G. Protease propeptide structures, mechanisms of activation, and functions. Crit Rev Biochem Mol Biol 2020; 55:111-165. [PMID: 32290726 DOI: 10.1080/10409238.2020.1742090] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Proteases are a diverse group of hydrolytic enzymes, ranging from single-domain catalytic molecules to sophisticated multi-functional macromolecules. Human proteases are divided into five mechanistic classes: aspartate, cysteine, metallo, serine and threonine proteases, based on the catalytic mechanism of hydrolysis. As a protective mechanism against uncontrolled proteolysis, proteases are often produced and secreted as inactive precursors, called zymogens, containing inhibitory N-terminal propeptides. Protease propeptide structures vary considerably in length, ranging from dipeptides and propeptides of about 10 amino acids to complex multifunctional prodomains with hundreds of residues. Interestingly, sequence analysis of the different protease domains has demonstrated that propeptide sequences present higher heterogeneity compared with their catalytic domains. Therefore, we suggest that protease inhibition targeting propeptides might be more specific and have less off-target effects than classical inhibitors. The roles of propeptides, besides keeping protease latency, include correct folding of proteases, compartmentalization, liganding, and functional modulation. Changes in the propeptide sequence, thus, have a tremendous impact on the cognate enzymes. Small modifications of the propeptide sequences modulate the activity of the enzymes, which may be useful as a therapeutic strategy. This review provides an overview of known human proteases, with a focus on the role of their propeptides. We review propeptide functions, activation mechanisms, and possible therapeutic applications.
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Affiliation(s)
- Lise Boon
- Rega Institute for Medical Research, Department of Microbiology, Immunology and Transplantation, Laboratory of Immunobiology, KU Leuven, Leuven, Belgium
| | - Estefania Ugarte-Berzal
- Rega Institute for Medical Research, Department of Microbiology, Immunology and Transplantation, Laboratory of Immunobiology, KU Leuven, Leuven, Belgium
| | - Jennifer Vandooren
- Rega Institute for Medical Research, Department of Microbiology, Immunology and Transplantation, Laboratory of Immunobiology, KU Leuven, Leuven, Belgium
| | - Ghislain Opdenakker
- Rega Institute for Medical Research, Department of Microbiology, Immunology and Transplantation, Laboratory of Immunobiology, KU Leuven, Leuven, Belgium
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32
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Xiang Y, Chen YJ, Yan YB, Liu Y, Qiu J, Tan RQ, Tian Q, Guan L, Niu SS, Xin HW. MiR-186 bidirectionally regulates cisplatin sensitivity of ovarian cancer cells via suppressing targets PIK3R3 and PTEN and upregulating APAF1 expression. J Cancer 2020; 11:3446-3453. [PMID: 32284740 PMCID: PMC7150455 DOI: 10.7150/jca.41135] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Accepted: 02/25/2020] [Indexed: 12/22/2022] Open
Abstract
Ovarian cancer is a highly lethal malignancy in the female reproductive system. Platinum drugs, represented by cisplatin, are the first-line chemotherapeutic agents for treatment of various malignancies including ovarian cancer, but drug resistance leads to chemotherapy failure. MicroRNAs emerged as promising molecules in reversal of cisplatin resistance. MiR-186 was reported to be downregulated in the cisplatin-resistant ovarian cell lines and miR-186 expression increased cisplatin sensitivity. However, we found the bidirectional regulatory effects of miR-186 on cisplatin sensitivity for the first time that overexpression of miR-186 at low concentration increased the cisplatin sensitivity of ovarian cancer cells A2780/DDP, while high concentration of miR-186 decreased the cisplatin sensitivity. The survival assay in other types of cancer cell lines verified the bidirectional regulatory function of miR-186 on cisplatin sensitivity in dose and cell type dependent manners. MiR-186 suppressed the protein levels of PTEN and PIK3R3 dose-dependently, which are opposite regulatory molecules of the oncogenic AKT pathway. MiR-186 also enhanced the protein levels of apoptotic gene APAF1 dose-dependently. We proposed the final effects of PTEN and APAF1 outweighed PIK3R3 when miR-186 at low concentration so as to increase the cisplatin sensitivity of ovarian cancer cells, while the final effects of PIK3R3 outweighed PTEN and APAF1 when miR-186 at high concentration so as to decrease the cisplatin sensitivity. We concluded the outcome of regulation of these opposite functional molecules contributed to the bidirectional regulatory effects of miR-186 in ovarian cancer cisplatin sensitivity. It deserves more attentions when developing therapeutic strategies based on the bidirectional functional miRNAs.
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Affiliation(s)
- Ying Xiang
- Department of Cell Biology and Genetics, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, Hubei 434023, China.,Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, 1 Nanhuan Road, Jingzhou, Hubei 434023, China.,The First School of Clinical Medicine, Health Science Center, Yangtze University, Nanhuan Road, Jingzhou, Hubei 434023, China
| | - Ya-Jun Chen
- Department of Oncology, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei 434023, China
| | - Yun-Bo Yan
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, 1 Nanhuan Road, Jingzhou, Hubei 434023, China
| | - Yu Liu
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, 1 Nanhuan Road, Jingzhou, Hubei 434023, China
| | - Jiao Qiu
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, 1 Nanhuan Road, Jingzhou, Hubei 434023, China
| | - Rui-Qiao Tan
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, 1 Nanhuan Road, Jingzhou, Hubei 434023, China
| | - Qing Tian
- Department of Cell Biology and Genetics, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, Hubei 434023, China
| | - Li Guan
- Department of Cell Biology and Genetics, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, Hubei 434023, China
| | - Shuai-Shuai Niu
- Department of Cell Biology and Genetics, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, Hubei 434023, China
| | - Hong-Wu Xin
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, 1 Nanhuan Road, Jingzhou, Hubei 434023, China.,Department of Molecular Biology and Biochemistry, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, Hubei 434023, China
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Hu X, Li L, Zhang Q, Wang Q, Feng Z, Xu Y, Xia Y, Yu L. Design, synthesis and biological evaluation of a novel tubulin inhibitor SKLB0565 targeting the colchicine binding site. Bioorg Chem 2020; 97:103695. [PMID: 32120073 DOI: 10.1016/j.bioorg.2020.103695] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 02/21/2020] [Accepted: 02/22/2020] [Indexed: 02/05/2023]
Abstract
A series of 3-(((9H-purin-6-yl) amino) methyl) pyridin-2(1H)-one derivatives were designed, synthesized and confirmed as tubulin polymerization inhibitors. All compounds were evaluated for their anti-proliferative activities on three colorectal carcinoma (CRC) cell lines. Among these compounds, SKLB0565 displayed noteworthy potency against eight CRC cell lines with IC50 values ranging from 0.012 μM and 0.081 μM. Besides, SKLB0565 inhibited tubulin polymerization, caused G2/M phase cell cycle arrest, depolarized mitochondria and induced cell apoptosis in CRC cells. Furthermore, SKLB0565 suppressed cell migration and disrupted the capillary tube formation of human umbilical vein endothelial cells (HUVECs). Our data clarified that SKLB0565 is a promising anti-tubulin agent for CRC therapy which is worthy of further evaluation.
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Affiliation(s)
- Xi Hu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 17#3rd Section, Ren Min South Road, Chengdu 610041, China
| | - Lu Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 17#3rd Section, Ren Min South Road, Chengdu 610041, China
| | - Qiangsheng Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 17#3rd Section, Ren Min South Road, Chengdu 610041, China
| | - Qianqian Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 17#3rd Section, Ren Min South Road, Chengdu 610041, China
| | - Zhanzhan Feng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 17#3rd Section, Ren Min South Road, Chengdu 610041, China
| | - Ying Xu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 17#3rd Section, Ren Min South Road, Chengdu 610041, China
| | - Yong Xia
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 17#3rd Section, Ren Min South Road, Chengdu 610041, China.
| | - Luoting Yu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 17#3rd Section, Ren Min South Road, Chengdu 610041, China.
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34
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Transit of Procaspase-9 towards its activation. New mechanistic insights from molecular dynamics simulations. J Mol Model 2020; 26:24. [PMID: 31927634 DOI: 10.1007/s00894-019-4285-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 12/20/2019] [Indexed: 10/25/2022]
Abstract
Caspases are cysteine proteases that perform a wide variety of roles in lethal intracellular signaling and cell-death regulation. Caspase-9, the primary initiator caspase of the intrinsic apoptotic pathway, is produced as a scarcely active zymogen (Procaspase-9). Here, we describe, for the first time, at the atomistic level, conformational changes which might be correlated to the activation of Procaspase-9. Molecular dynamics simulations performed at two temperatures (310 and 410 K) provide insights about the conformational space and the time-course evolution of the geometrical and structural characteristics of Procaspase-9. At both temperatures studied, the extremal globular domains of the protein approach each other, contracting the disordered region. In both temperatures, the compact conformations hide more than 40 nm2 (about 20% of the total solvent-accessible surface area), and their radius of gyration are reduced by about 40% from the original values. At each temperature, the pathway of contraction is different, as well as the compact structures reached. In consequence, the network of stabilizing interactions at the final conformations is dissimilar. Both final conformations were evaluated in their structural compatibility with the activation models described so far. In this work, we describe mechanistically how and why the activation of Procaspase-9 is favored by apoptosome recruitment via the Caspase Activation Recruitment Domain (CARD), as it has been proposed recently by in vitro experiments.
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35
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Rosier BJHM, Markvoort AJ, Gumí Audenis B, Roodhuizen JAL, den Hamer A, Brunsveld L, de Greef TFA. Proximity-induced caspase-9 activation on a DNA origami-based synthetic apoptosome. Nat Catal 2020; 3:295-306. [PMID: 32190819 PMCID: PMC7080557 DOI: 10.1038/s41929-019-0403-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Living cells regulate key cellular processes by spatial organisation of catalytically active proteins in higher-order signalling complexes. These act as organising centres to facilitate proximity-induced activation and inhibition of multiple intrinsically weakly associating signalling components, which makes elucidation of the underlying protein-protein interactions challenging. Here we show that DNA origami nanostructures provide a programmable molecular platform for the systematic analysis of signalling proteins by engineering a synthetic DNA origami-based version of the apoptosome, a multi-protein complex that regulates apoptosis by co-localizing multiple caspase-9 monomers. Tethering of both wildtype and inactive caspase-9 variants to a DNA origami platform demonstrates that enzymatic activity is induced by proximity-driven dimerization with half-of-sites reactivity, and additionally, reveals a multivalent activity enhancement in oligomers of three and four enzymes. Our results offer fundamental insights in caspase-9 activity regulation and demonstrate that DNA origami-based protein assembly platforms have the potential to inform the function of other multi-enzyme complexes involved in inflammation, innate immunity and cell death.
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Affiliation(s)
- Bas J H M Rosier
- Laboratory of Chemical Biology, Department of Biomedical Engineering, Eindhoven University of Technology, The Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, The Netherlands
| | - Albert J Markvoort
- Institute for Complex Molecular Systems, Eindhoven University of Technology, The Netherlands.,Computational Biology Group, Department of Biomedical Engineering, Eindhoven University of Technology, The Netherlands
| | - Berta Gumí Audenis
- Institute for Complex Molecular Systems, Eindhoven University of Technology, The Netherlands.,Laboratory of Self-Organising Soft Matter and Laboratory of Macromolecular and Organic Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, The Netherlands
| | - Job A L Roodhuizen
- Institute for Complex Molecular Systems, Eindhoven University of Technology, The Netherlands.,Computational Biology Group, Department of Biomedical Engineering, Eindhoven University of Technology, The Netherlands
| | - Anniek den Hamer
- Laboratory of Chemical Biology, Department of Biomedical Engineering, Eindhoven University of Technology, The Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, The Netherlands
| | - Luc Brunsveld
- Laboratory of Chemical Biology, Department of Biomedical Engineering, Eindhoven University of Technology, The Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, The Netherlands
| | - Tom F A de Greef
- Laboratory of Chemical Biology, Department of Biomedical Engineering, Eindhoven University of Technology, The Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, The Netherlands.,Computational Biology Group, Department of Biomedical Engineering, Eindhoven University of Technology, The Netherlands.,Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
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36
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Yadav N, Gogada R, O'Malley J, Gundampati RK, Jayanthi S, Hashmi S, Lella R, Zhang D, Wang J, Kumar R, Suresh Kumar TK, Chandra D. Molecular insights on cytochrome c and nucleotide regulation of apoptosome function and its implication in cancer. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2020; 1867:118573. [PMID: 31678591 PMCID: PMC7733678 DOI: 10.1016/j.bbamcr.2019.118573] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 10/14/2019] [Accepted: 10/22/2019] [Indexed: 12/20/2022]
Abstract
Cytochrome c (Cyt c) released from mitochondria interacts with Apaf-1 to form the heptameric apoptosome, which initiates the caspase cascade to execute apoptosis. Although lysine residue at 72 (K72) of Cyt c plays an important role in the Cyt c-Apaf-1 interaction, the underlying mechanism of interaction between Cyt c and Apaf-1 is still not clearly defined. Here we identified multiple lysine residues including K72, which are also known to interact with ATP, to play a key role in Cyt c-Apaf-1 interaction. Mutation of these lysine residues abrogates the apoptosome formation causing inhibition of caspase activation. Using in-silico molecular docking, we have identified Cyt c-binding interface on Apaf-1. Although mutant Cyt c shows higher affinity for Apaf-1, the presence of Cyt c-WT restores the apoptosome activity. ATP addition modulates only mutant Cyt c binding to Apaf-1 but not WT Cyt c binding to Apaf-1. Using TCGA and cBioPortal, we identified multiple mutations in both Apaf-1 and Cyt c that are predicted to interfere with apoptosome assembly. We also demonstrate that transcript levels of various enzymes involved with dATP or ATP synthesis are increased in various cancers. Silencing of nucleotide metabolizing enzymes such as ribonucleotide reductase subunit M1 (RRM1) and ATP-producing glycolytic enzymes PKM2 attenuated ATP production and enhanced caspase activation. These findings suggest important role for lysine residues of Cyt c and nucleotides in the regulation of apoptosome-dependent apoptotic cell death as well as demonstrate how these mutations and nucleotides may have a pivotal role in human diseases such as cancer.
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Affiliation(s)
- Neelu Yadav
- The Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, United States of America
| | - Raghu Gogada
- The Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, United States of America
| | - Jordan O'Malley
- The Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, United States of America
| | - Ravi Kumar Gundampati
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States of America
| | - Srinivas Jayanthi
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States of America
| | - Sana Hashmi
- The Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, United States of America
| | - Ravi Lella
- The Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, United States of America
| | - Dianmu Zhang
- The Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, United States of America
| | - Jianmin Wang
- The Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, United States of America
| | - Rahul Kumar
- The Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, United States of America
| | | | - Dhyan Chandra
- The Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, United States of America.
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37
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Li Y, Liang P, Jiang B, Tang Y, Lv Q, Hao H, Liu Z, Xiao X. CARD9 inhibits mitochondria-dependent apoptosis of cardiomyocytes under oxidative stress via interacting with Apaf-1. Free Radic Biol Med 2019; 141:172-181. [PMID: 31212066 DOI: 10.1016/j.freeradbiomed.2019.06.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/25/2019] [Accepted: 06/14/2019] [Indexed: 12/11/2022]
Abstract
Cardiomyocyte apoptosis is known to contribute to myocardial ischemia/reperfusion (I/R) injury. Caspase recruitment domain-containing protein 9 (CARD9) play a role in cardiac fibrosis and dysfunction. However, the role of CARD9 in apoptosis of cardiomyocytes in myocardial I/R injury and its underlying mechanisms are still unclear. In this study, CARD9 expression was found to increase in H9c2 cells in response to hydrogen peroxide. Loss of CARD9 significantly increased caspase-3 activation and cardiomyocyte death following oxidative stress in vitro. Conversely, CARD9 overexpression decreased apoptosis as evidenced by a reduction in caspase-3 activation and the apoptotic rate. The caspase recruitment domain (CARD) of CARD9 was necessary for the protective effect of CARD9 against oxidative stress in cardiomyocytes. CARD9 suppressed the activation of caspase-9 by interacting with Apaf-1 via its CARD domain in H9c2 cells exposed to H2O2. Ablation of caspase-9 activity by z-lehd-fmk effectively prevented the detrimental effect of CARD9 deficiency on cardiomyocytes. Wild-type (WT) and CARD9-/- mice were subjected to 30 min of left ascending coronary (LAD) ischemia and 12 h of reperfusion. TdT-mediated dUTP nick end labeling (TUNEL) staining analysis showed that CARD9-/- mice exhibited a significantly higher number of apoptotic-positive cells after myocardial I/R injury than the WT mice. These results suggest that CARD9 protects cardiomyocytes from apoptosis by interacting with Apaf-1 and interfering with apoptosome formation following myocardial I/R injury in vivo and in vitro.
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Affiliation(s)
- Yuanbin Li
- Department of Pathophysiology, Sepsis Translational Medicine Key Lab of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, 410000, Hunan, China
| | - Pengfei Liang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, 410000, Hunan, China
| | - Bimei Jiang
- Department of Pathophysiology, Sepsis Translational Medicine Key Lab of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, 410000, Hunan, China.
| | - Yuting Tang
- Department of Pathophysiology, Sepsis Translational Medicine Key Lab of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, 410000, Hunan, China
| | - Qinglan Lv
- Department of Pathophysiology, Sepsis Translational Medicine Key Lab of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, 410000, Hunan, China
| | - Hong Hao
- Division of Cardiovascular Medicine, Center for Precision Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, USA
| | - Zhenguo Liu
- Division of Cardiovascular Medicine, Center for Precision Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, USA
| | - Xianzhong Xiao
- Department of Pathophysiology, Sepsis Translational Medicine Key Lab of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, 410000, Hunan, China
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38
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Animal NLRs continue to inform plant NLR structure and function. Arch Biochem Biophys 2019; 670:58-68. [PMID: 31071301 DOI: 10.1016/j.abb.2019.05.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/10/2019] [Accepted: 05/01/2019] [Indexed: 12/22/2022]
Abstract
Plant NLRs share many of the structural hallmarks of their animal counterparts. At a functional level, the central nucleotide-binding pocket appears to have binding and hydrolysis activities, similar to that of animal NLRs. The TIR domains of plant NLRs have been shown to self-associate, and there is emerging evidence that full-length plant NLRs may do so as well. It is therefore tempting to speculate that plant NLRs may form higher-order complexes similar to those of the mammalian inflammasome. Here we review the available knowledge on structure-function relationships in plant NLRs, focusing on how the information available on animal NLRs informs the mechanism of plant NLR function, and highlight the evidence that innate immunity signalling pathways in multicellular organisms often require the formation of higher-order protein complexes.
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39
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Ramezani T, Nabiuni M, Baharara J, Parivar K, Namvar F. Sensitization of Resistance Ovarian Cancer Cells to Cisplatin by Biogenic Synthesized Silver Nanoparticles through p53 Activation. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2019; 18:222-231. [PMID: 31089357 PMCID: PMC6487401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Today, drug resistance is one of the major problems in fight against cancer. Therefore, combination of therapeutic strategies was raised to effectively improve disease prognosis. In this regard, silver nanoparticles (AgNPs) are considered significant due to their anticancer properties. This study aimed to return sensitivity to cisplatin to A2780 cisplatin-resistance cell lines in the presence of biogenic synthesis curcumin-coated silver nanoparticles (cAgNPs). Synergic cellular effects of cAgNPs and cisplatin on ovarian carcinoma 2780 resistant to cisplatin cells were assessed using MTT assay, Acridine orange (AO)/propidium iodide (PI), DAPI staining, Annexin V/PI assay, and caspase 3/9 activation assay. Finally, expression of p53 and MMP-9 genes were evaluated using semi-quantitative reverse transcription polymerase chain reaction (RT-PCR). According to the results, 8 µg/mL and 62 µg/mL of cAgNPs and cisplatin led to 50% cell death in 48 h, respectively. Therefore, we combined non-toxic concentration of nanoparticles (1-5 µg/mL) with cisplatin (2.5 µg/mL). Decreased proliferation rate was about 50% for synergic use of cisplatin (2.5 µg/mL) and cAgNPs (2 µg/mL). According to the results, cell death induction significantly increased by AO/PI, DAPI staining and Annexin V/PI assay in the combined group. Moreover, activity of caspase 3/9 significantly increased in the mentioned group. The combined use of cAgNPs and cisplatin resulted in upregulated expression of p53 gene and downregulated expression of MPP-9 gene. As observed in this study, a combination of cAgNPs and cisplatin increased the efficiency of apoptosis induction in A2780 cells, compared to the independent use of cisplatin or cAgNPs.
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Affiliation(s)
- Tayebe Ramezani
- Department of Animal Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran.
| | - Mohamad Nabiuni
- Department of Animal Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran.
| | - Javad Baharara
- Research Center for Animal Development Applied Biology, Islamic Azad University of Mashhad Branch, Mashhad, Iran.
| | - Kazem Parivar
- Department of Animal Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran.
| | - Farideh Namvar
- Research Center for Animal Development Applied Biology, Islamic Azad University of Mashhad Branch, Mashhad, Iran.
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40
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Nanson JD, Kobe B, Ve T. Death, TIR, and RHIM: Self-assembling domains involved in innate immunity and cell-death signaling. J Leukoc Biol 2018; 105:363-375. [PMID: 30517972 DOI: 10.1002/jlb.mr0318-123r] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/31/2018] [Accepted: 11/01/2018] [Indexed: 12/14/2022] Open
Abstract
The innate immune system consists of pattern recognition receptors (PRRs) that detect pathogen- and endogenous danger-associated molecular patterns (PAMPs and DAMPs), initiating signaling pathways that lead to the induction of cytokine expression, processing of pro-inflammatory cytokines, and induction of cell-death responses. An emerging concept in these pathways and associated processes is signaling by cooperative assembly formation (SCAF), which involves formation of higher order oligomeric complexes, and enables rapid and strongly amplified signaling responses to minute amounts of stimulus. Many of these signalosomes assemble through homotypic interactions of members of the death-fold (DF) superfamily, Toll/IL-1 receptor (TIR) domains, or the RIP homotypic interaction motifs (RHIM). We review the current understanding of the structure and function of these domains and their molecular interactions with a particular focus on higher order assemblies.
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Affiliation(s)
- Jeffrey D Nanson
- School of Chemistry and Molecular Biosciences, Institute for Molecular Bioscience and Australian Infectious Diseases Research Centre, University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Bostjan Kobe
- School of Chemistry and Molecular Biosciences, Institute for Molecular Bioscience and Australian Infectious Diseases Research Centre, University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Thomas Ve
- School of Chemistry and Molecular Biosciences, Institute for Molecular Bioscience and Australian Infectious Diseases Research Centre, University of Queensland, Brisbane, Queensland, 4072, Australia.,Institute for Glycomics, Griffith University, Southport, Queensland, 4222, Australia
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41
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Dang DT, van Onzen AHAM, Dorland YL, Brunsveld L. Cucurbit[8]uril Reactivation of an Inactivated Caspase-8 Mutant Reveals Differentiated Enzymatic Substrate Processing. Chembiochem 2018; 19:2490-2494. [PMID: 30300966 PMCID: PMC6391946 DOI: 10.1002/cbic.201800521] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Indexed: 01/26/2023]
Abstract
Caspase-8 constructs featuring an N-terminal FGG sequence allow for selective twofold recognition by cucurbit[8]uril, which leads to an increase of the enzymatic activity in a cucurbit[8]uril dose-dependent manner. This supramolecular switching has enabled for the first time the study of the same caspase-8 in its two extreme states; as full monomer and as cucurbit[8]uril induced dimer. A mutated, fully monomeric caspase-8 (D384A), which is enzymatically inactive towards its natural substrate caspase-3, could be fully reactivated upon addition of cucurbit[8]uril. In its monomeric state caspase-8 (D384A) still processes a small synthetic substrate, but not the natural caspase-3 substrate, highlighting the close interplay between protein dimerization and active site rearrangement for substrate selectivity. The ability to switch the caspase-8 activity by a supramolecular system thus provides a flexible approach to studying the activity of a protein at different oligomerization states.
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Affiliation(s)
- Dung T. Dang
- Laboratory of Chemical BiologyDepartment of Biomedical Engineering, andInstitute for Complex Molecular SystemsEindhoven University of TechnologyDen Dolech 25612AZEindhovenThe Netherlands
| | - Arthur H. A. M. van Onzen
- Laboratory of Chemical BiologyDepartment of Biomedical Engineering, andInstitute for Complex Molecular SystemsEindhoven University of TechnologyDen Dolech 25612AZEindhovenThe Netherlands
| | - Yvonne L. Dorland
- Laboratory of Chemical BiologyDepartment of Biomedical Engineering, andInstitute for Complex Molecular SystemsEindhoven University of TechnologyDen Dolech 25612AZEindhovenThe Netherlands
| | - Luc Brunsveld
- Laboratory of Chemical BiologyDepartment of Biomedical Engineering, andInstitute for Complex Molecular SystemsEindhoven University of TechnologyDen Dolech 25612AZEindhovenThe Netherlands
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42
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Caspases orchestrate microglia instrumental functions. Prog Neurobiol 2018; 171:50-71. [DOI: 10.1016/j.pneurobio.2018.09.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 09/21/2018] [Accepted: 09/29/2018] [Indexed: 12/16/2022]
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43
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Indole-3-Carbinol Induces Apoptosis in Human Osteosarcoma MG-63 and U2OS Cells. BIOMED RESEARCH INTERNATIONAL 2018; 2018:7970618. [PMID: 30627573 PMCID: PMC6304504 DOI: 10.1155/2018/7970618] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 10/24/2018] [Accepted: 11/19/2018] [Indexed: 12/19/2022]
Abstract
This study was focused on investigating the anticancer potential of indole-3-carbinol (I3C) against osteosarcoma MG-63 and U2OS cells. A wound healing assay indicated that IC3 inhibited migration of MG-63 and U2OS cells. MTT, WST-1, and colony formation assays revealed that treatment of MG-63 and U2OS cells with I3C decreased cell viability. Fluorescence-activated cell sorting (FACS) analysis showed that I3C induced apoptosis in a dose- and time-dependent manner in MG-63 and U2OS cells. Moreover, via terminal deoxynucleotidyl transferase- (TdT-) mediated dUTP-biotin nick-end labeling (TUNEL) assay, we detected that I3C induced DNA fragmentation. Western blotting demonstrated that activated forms of caspase-3, caspase-7, and caspase-9, as well as poly (ADP-ribose) polymerase (PARP) were increased in MG-63 and U2OS cells, following treatment with I3C. Furthermore, protein expression levels of FOXO3, Bax, and Bim extra-large form were increased while those of Akt, JNK, p38, phosphorylated ERK, and Bcl-xL were decreased by I3C treatment in MG-63 and U2OS cells. Thus, the study indicates that I3C may induce apoptosis in human osteosarcoma MG-63 and U2OS cells via the activation of apoptotic signaling pathways by FOXO3.
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44
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Danish L, Imig D, Allgöwer F, Scheurich P, Pollak N. Bcl-2-mediated control of TRAIL-induced apoptotic response in the non-small lung cancer cell line NCI-H460 is effective at late caspase processing steps. PLoS One 2018; 13:e0198203. [PMID: 29927992 PMCID: PMC6013189 DOI: 10.1371/journal.pone.0198203] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 05/15/2018] [Indexed: 11/29/2022] Open
Abstract
Dysregulation of the mitochondrial signaling pathway of apoptosis induction represents a major hurdle in tumor therapy. The objective of the presented work was to investigate the role of the intrinsic (mitochondrial) apoptotic pathway in the non-small lung cancer cell line NCI-H460 upon induction of apoptosis using the highly bioactive TRAIL derivative Db-scTRAIL. NCI-H460 cells were TRAIL sensitive but an only about 3 fold overexpression of Bcl-2 was sufficient to induce a highly TRAIL resistant phenotype, confirming that the mitochondrial pathway is crucial for TRAIL-induced apoptosis induction. TRAIL resistance was paralleled by a strong inhibition of caspase-8, -9 and -3 activities and blocked their full processing. Notably, especially the final cleavage steps of the initiator caspase-8 and the executioner caspase-3 were effectively blocked by Bcl-2 overexpression. Caspase-9 knockdown failed to protect NCI-H460 cells from TRAIL-induced cell death, suggesting a minor role of this initiator caspase in this apoptotic pathway. Rather, knockdown of the XIAP antagonist Smac resulted in enhanced caspase-3 degradation after stimulation of cells with TRAIL. Of note, downregulation of XIAP had only limited effects on TRAIL sensitivity of wild-type NCI-H460 cells, but resensitized Bcl-2 overexpressing cells for TRAIL-induced apoptosis. In particular, XIAP knockdown in combination with TRAIL allowed the final cleavage step of caspase-3 to generate the catalytically active p17 fragment, whose production was otherwise blocked in Bcl-2 overexpressing cells. Together, our data strongly suggest that XIAP-mediated inhibition of final caspase-3 processing is the last and major hurdle in TRAIL-induced apoptosis in NCI-H460 cells, which can be overcome by Smac in a Bcl-2 level dependent manner. Quantitative investigation of the XIAP/Smac interplay using a mathematical model approach corroborates our experimental data strengthening the suggested roles of XIAP and Smac as critical determinants for TRAIL sensitivity.
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Affiliation(s)
- Lubna Danish
- Institute of Cell Biology and Immunology, University of Stuttgart, Stuttgart, Germany
| | - Dirke Imig
- Institute of Systems Theory and Automatic Control, University of Stuttgart, Stuttgart, Germany
| | - Frank Allgöwer
- Institute of Systems Theory and Automatic Control, University of Stuttgart, Stuttgart, Germany
| | - Peter Scheurich
- Institute of Cell Biology and Immunology, University of Stuttgart, Stuttgart, Germany
| | - Nadine Pollak
- Institute of Cell Biology and Immunology, University of Stuttgart, Stuttgart, Germany
- Institute of Systems Theory and Automatic Control, University of Stuttgart, Stuttgart, Germany
- * E-mail:
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45
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Dorstyn L, Akey CW, Kumar S. New insights into apoptosome structure and function. Cell Death Differ 2018; 25:1194-1208. [PMID: 29765111 DOI: 10.1038/s41418-017-0025-z] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 10/23/2017] [Accepted: 10/25/2017] [Indexed: 02/08/2023] Open
Abstract
The apoptosome is a platform that activates apical procaspases in response to intrinsic cell death signals. Biochemical and structural studies in the past two decades have extended our understanding of apoptosome composition and structure, while illuminating the requirements for initiator procaspase activation. A number of studies have now provided high-resolution structures for apoptosomes from C. elegans (CED-4), D. melanogaster (Dark), and H. sapiens (Apaf-1), which define critical protein interfaces, including intra and interdomain interactions. This work also reveals interactions of apoptosomes with their respective initiator caspases, CED-3, Dronc and procaspase-9. Structures of the human apoptosome have defined the requirements for cytochrome c binding, which triggers the conversion of inactive Apaf-1 molecules to an extended, assembly competent state. While recent data have provided a detailed understanding of apoptosome formation and procaspase activation, they also highlight important evolutionary differences with functional implications for caspase activation. Comparison of the CARD/CARD disks and apoptosomes formed by CED-4, Dark and Apaf-1. Cartoons of the active states of the CARD-CARD disks, illustrating the two CED-4 CARD tetrameric ring layers (CED4a and CED4b; top row) and the binding of 8 Dronc CARDs and between 3-4 pc-9 CARDs, to the Dark and Apaf-1 CARD disk respectively (middle and lower rows). Ribbon diagrams of the active CED-4, Dark and Apaf-1 apoptosomes are shown (right column).
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Affiliation(s)
- Loretta Dorstyn
- Center for Cancer Biology, University of South Australia and SA Pathology, Frome Road, Adelaide, SA, 5001, Australia.
| | - Christopher W Akey
- Department of Physiology and Biophysics, Boston University School of Medicine, 700 Albany Street, Boston, MA, 02118, USA
| | - Sharad Kumar
- Center for Cancer Biology, University of South Australia and SA Pathology, Frome Road, Adelaide, SA, 5001, Australia.
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46
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Li-Sha G, Li L, De-Pu Z, Zhe-Wei S, Xiaohong G, Guang-Yi C, Jia L, Jia-Feng L, Maoping C, Yue-Chun L. Ivabradine Treatment Reduces Cardiomyocyte Apoptosis in a Murine Model of Chronic Viral Myocarditis. Front Pharmacol 2018; 9:182. [PMID: 29556195 PMCID: PMC5844961 DOI: 10.3389/fphar.2018.00182] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Accepted: 02/19/2018] [Indexed: 11/25/2022] Open
Abstract
This study was designed to explore the effects of ivabradine on cardiomyocyte apoptosis in a murine model of chronic viral myocarditis (CVMC). Mice were inoculated intraperitoneally with Coxsackievirus B3 at days 1, 14, and 28, respectively. On day 42, the mice were gavaged with ivabradine for 30 days until the 72nd day. The heart of infected mice was dilated and a large number of interstitial fibroblasts infiltrated into the myocardium on day 42. Compared with the untreated CVMC mice, mice treated with ivabradine showed a significant reduction in heart rate and less impairment of left ventricular function on day 72. The positive apoptosis of myocardial cells in the untreated CVMC group was significantly higher than that of the normal group and was significantly reduced after treatment with ivabradine. The expression levels of Bax and Caspase-3 in the untreated CVMC group were significantly higher than those of the normal group and were apparently reduced in the ivabradine-treated group versus the untreated CVMC group. Bcl-2 showed a high expression in the normal group and low expression in the untreated CVMC group, but its expression level in the ivabradine-treated group were higher than that of the untreated CVMC group. These results indicate that ivabradine could attenuate the expression of Caspase-3 by downregulation of Bax and upregulation of Bcl-2 to prevent the deterioration of cardiac function resulting from ventricular myocyte loss by cardiomyocyte apoptosis.
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Affiliation(s)
- Ge Li-Sha
- Department of Pediatric Emergency, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Liu Li
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Cardiology, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang, China
| | - Zhou De-Pu
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shi Zhe-Wei
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Gu Xiaohong
- Children's Heart Center and Department of Pediatrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chen Guang-Yi
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Li Jia
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lin Jia-Feng
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chu Maoping
- Children's Heart Center and Department of Pediatrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Li Yue-Chun
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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47
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Galluzzi L, Vitale I, Aaronson SA, Abrams JM, Adam D, Agostinis P, Alnemri ES, Altucci L, Amelio I, Andrews DW, Annicchiarico-Petruzzelli M, Antonov AV, Arama E, Baehrecke EH, Barlev NA, Bazan NG, Bernassola F, Bertrand MJM, Bianchi K, Blagosklonny MV, Blomgren K, Borner C, Boya P, Brenner C, Campanella M, Candi E, Carmona-Gutierrez D, Cecconi F, Chan FKM, Chandel NS, Cheng EH, Chipuk JE, Cidlowski JA, Ciechanover A, Cohen GM, Conrad M, Cubillos-Ruiz JR, Czabotar PE, D'Angiolella V, Dawson TM, Dawson VL, De Laurenzi V, De Maria R, Debatin KM, DeBerardinis RJ, Deshmukh M, Di Daniele N, Di Virgilio F, Dixit VM, Dixon SJ, Duckett CS, Dynlacht BD, El-Deiry WS, Elrod JW, Fimia GM, Fulda S, García-Sáez AJ, Garg AD, Garrido C, Gavathiotis E, Golstein P, Gottlieb E, Green DR, Greene LA, Gronemeyer H, Gross A, Hajnoczky G, Hardwick JM, Harris IS, Hengartner MO, Hetz C, Ichijo H, Jäättelä M, Joseph B, Jost PJ, Juin PP, Kaiser WJ, Karin M, Kaufmann T, Kepp O, Kimchi A, Kitsis RN, Klionsky DJ, Knight RA, Kumar S, Lee SW, Lemasters JJ, Levine B, Linkermann A, Lipton SA, Lockshin RA, López-Otín C, Lowe SW, Luedde T, Lugli E, MacFarlane M, Madeo F, Malewicz M, Malorni W, Manic G, Marine JC, Martin SJ, Martinou JC, Medema JP, Mehlen P, Meier P, Melino S, Miao EA, Molkentin JD, Moll UM, Muñoz-Pinedo C, Nagata S, Nuñez G, Oberst A, Oren M, Overholtzer M, Pagano M, Panaretakis T, Pasparakis M, Penninger JM, Pereira DM, Pervaiz S, Peter ME, Piacentini M, Pinton P, Prehn JHM, Puthalakath H, Rabinovich GA, Rehm M, Rizzuto R, Rodrigues CMP, Rubinsztein DC, Rudel T, Ryan KM, Sayan E, Scorrano L, Shao F, Shi Y, Silke J, Simon HU, Sistigu A, Stockwell BR, Strasser A, Szabadkai G, Tait SWG, Tang D, Tavernarakis N, Thorburn A, Tsujimoto Y, Turk B, Vanden Berghe T, Vandenabeele P, Vander Heiden MG, Villunger A, Virgin HW, Vousden KH, Vucic D, Wagner EF, Walczak H, Wallach D, Wang Y, Wells JA, Wood W, Yuan J, Zakeri Z, Zhivotovsky B, Zitvogel L, Melino G, Kroemer G. Molecular mechanisms of cell death: recommendations of the Nomenclature Committee on Cell Death 2018. Cell Death Differ 2018; 25:486-541. [PMID: 29362479 PMCID: PMC5864239 DOI: 10.1038/s41418-017-0012-4] [Citation(s) in RCA: 3825] [Impact Index Per Article: 637.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 10/13/2017] [Indexed: 02/06/2023] Open
Abstract
Over the past decade, the Nomenclature Committee on Cell Death (NCCD) has formulated guidelines for the definition and interpretation of cell death from morphological, biochemical, and functional perspectives. Since the field continues to expand and novel mechanisms that orchestrate multiple cell death pathways are unveiled, we propose an updated classification of cell death subroutines focusing on mechanistic and essential (as opposed to correlative and dispensable) aspects of the process. As we provide molecularly oriented definitions of terms including intrinsic apoptosis, extrinsic apoptosis, mitochondrial permeability transition (MPT)-driven necrosis, necroptosis, ferroptosis, pyroptosis, parthanatos, entotic cell death, NETotic cell death, lysosome-dependent cell death, autophagy-dependent cell death, immunogenic cell death, cellular senescence, and mitotic catastrophe, we discuss the utility of neologisms that refer to highly specialized instances of these processes. The mission of the NCCD is to provide a widely accepted nomenclature on cell death in support of the continued development of the field.
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Affiliation(s)
- Lorenzo Galluzzi
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA.
- Sandra and Edward Meyer Cancer Center, New York, NY, USA.
- Paris Descartes/Paris V University, Paris, France.
| | - Ilio Vitale
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
- Unit of Cellular Networks and Molecular Therapeutic Targets, Department of Research, Advanced Diagnostics and Technological Innovation, Regina Elena National Cancer Institute, Rome, Italy
| | - Stuart A Aaronson
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - John M Abrams
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Dieter Adam
- Institute of Immunology, Kiel University, Kiel, Germany
| | - Patrizia Agostinis
- Cell Death Research & Therapy (CDRT) Lab, Department of Cellular & Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Emad S Alnemri
- Department of Biochemistry and Molecular Biology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - Lucia Altucci
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "Luigi Vanvitelli", Napoli, Italy
| | - Ivano Amelio
- Medical Research Council (MRC) Toxicology Unit, Leicester University, Leicester, UK
| | - David W Andrews
- Biological Sciences, Sunnybrook Research Institute, Toronto, Canada
- Department of Biochemistry, University of Toronto, Toronto, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | | | - Alexey V Antonov
- Medical Research Council (MRC) Toxicology Unit, Leicester University, Leicester, UK
| | - Eli Arama
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
| | - Eric H Baehrecke
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, MA, USA
| | - Nickolai A Barlev
- Institute of Cytology, Russian Academy of Sciences, Saint-Petersburg, Russia
| | - Nicolas G Bazan
- Neuroscience Center of Excellence, Louisiana State University School of Medicine, New Orleans, LA, USA
| | - Francesca Bernassola
- Department of Experimental Medicine and Surgery, University of Rome "Tor Vergata", Rome, Italy
| | - Mathieu J M Bertrand
- VIB Center for Inflammation Research (IRC), Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Katiuscia Bianchi
- Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
| | | | - Klas Blomgren
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden
- Department of Pediatric Oncology, Karolinska University Hospital, Stockholm, Sweden
| | - Christoph Borner
- Institute of Molecular Medicine and Cell Research, Albert Ludwigs University, Freiburg, Germany
- Spemann Graduate School of Biology and Medicine (SGBM), Faculty of Medicine, Albert Ludwigs University, Freiburg, Germany
| | - Patricia Boya
- Department of Cellular and Molecular Biology, Center for Biological Investigation (CIB), Spanish National Research Council (CSIC), Madrid, Spain
| | - Catherine Brenner
- INSERM U1180, Châtenay Malabry, France
- University of Paris Sud/Paris Saclay, Orsay, France
| | - Michelangelo Campanella
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
- Unit of Cellular Networks and Molecular Therapeutic Targets, Department of Research, Advanced Diagnostics and Technological Innovation, Regina Elena National Cancer Institute, Rome, Italy
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, London, UK
- University College London Consortium for Mitochondrial Research, London, UK
| | - Eleonora Candi
- Biochemistry Laboratory, Dermopatic Institute of Immaculate (IDI) IRCCS, Rome, Italy
- Department of Experimental Medicine and Surgery, University of Rome "Tor Vergata", Rome, Italy
| | | | - Francesco Cecconi
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
- Unit of Cell Stress and Survival, Danish Cancer Society Research Center, Copenhagen, Denmark
- Department of Pediatric Hematology and Oncology, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | - Francis K-M Chan
- Department of Pathology, University of Massachusetts Medical School, Worcester, MA, USA
| | - Navdeep S Chandel
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Emily H Cheng
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jerry E Chipuk
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - John A Cidlowski
- Signal Transduction Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA
| | - Aaron Ciechanover
- Technion Integrated Cancer Center (TICC), The Ruth and Bruce Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel
| | - Gerald M Cohen
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Marcus Conrad
- Institute of Developmental Genetics, Helmholtz Center Munich, German Research Center for Environmental Health (GmbH), Munich, Germany
| | - Juan R Cubillos-Ruiz
- Sandra and Edward Meyer Cancer Center, New York, NY, USA
- Department of Obstetrics and Gynecology, Weill Cornell Medical College, New York, NY, USA
| | - Peter E Czabotar
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Vincenzo D'Angiolella
- Cancer Research UK and Medical Research Council Institute for Radiation Oncology, Department of Oncology, University of Oxford, Old Road Campus Research Building, Oxford, UK
| | - Ted M Dawson
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Valina L Dawson
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Physiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Vincenzo De Laurenzi
- Department of Medical, Oral and Biotechnological Sciences, CeSI-MetUniversity of Chieti-Pescara "G. d'Annunzio", Chieti, Italy
| | - Ruggero De Maria
- Institute of General Pathology, Catholic University "Sacro Cuore", Rome, Italy
| | - Klaus-Michael Debatin
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm, Germany
| | - Ralph J DeBerardinis
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Mohanish Deshmukh
- Department of Cell Biology and Physiology, Neuroscience Center, University of North Carolina, Chapel Hill, NC, USA
| | - Nicola Di Daniele
- Hypertension and Nephrology Unit, Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Francesco Di Virgilio
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Vishva M Dixit
- Department of Physiological Chemistry, Genentech, South San Francisco, CA, USA
| | - Scott J Dixon
- Department of Biology, Stanford University, Stanford, CA, USA
| | - Colin S Duckett
- Baylor Scott & White Research Institute, Baylor College of Medicine, Dallas, TX, USA
| | - Brian D Dynlacht
- Department of Pathology, New York University School of Medicine, New York, NY, USA
- Laura and Isaac Perlmutter Cancer Center, New York University School of Medicine, New York, NY, USA
| | - Wafik S El-Deiry
- Laboratory of Translational Oncology and Experimental Cancer Therapeutics, Department of Hematology/Oncology, Fox Chase Cancer Center, Philadelphia, PA, USA
- Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - John W Elrod
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine at Temple University School of Medicine, Philadelphia, PA, USA
| | - Gian Maria Fimia
- National Institute for Infectious Diseases IRCCS "Lazzaro Spallanzani", Rome, Italy
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Lecce, Italy
| | - Simone Fulda
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University Frankfurt, Frankfurt, Germany
- German Cancer Consortium (DKTK), Partner Site, Frankfurt, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ana J García-Sáez
- Interfaculty Institute of Biochemistry, Tübingen University, Tübingen, Germany
| | - Abhishek D Garg
- Cell Death Research & Therapy (CDRT) Lab, Department of Cellular & Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Carmen Garrido
- INSERM U1231 "Lipides Nutrition Cancer", Dijon, France
- Faculty of Medicine, University of Burgundy France Comté, Dijon, France
- Cancer Centre Georges François Leclerc, Dijon, France
| | - Evripidis Gavathiotis
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
- Albert Einstein Cancer Center, Albert Einstein College of Medicine, Bronx, NY, USA
- Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Pierre Golstein
- Immunology Center of Marseille-Luminy, Aix Marseille University, Marseille, France
| | - Eyal Gottlieb
- Technion Integrated Cancer Center (TICC), The Ruth and Bruce Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - Douglas R Green
- Department of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - Lloyd A Greene
- Department of Pathology and Cell Biology, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Hinrich Gronemeyer
- Team labeled "Ligue Contre le Cancer", Department of Functional Genomics and Cancer, Institute of Genetics and Molecular and Cellular Biology (IGBMC), Illkirch, France
- CNRS UMR 7104, Illkirch, France
- INSERM U964, Illkirch, France
- University of Strasbourg, Illkirch, France
| | - Atan Gross
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Gyorgy Hajnoczky
- MitoCare Center, Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - J Marie Hardwick
- Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Isaac S Harris
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | | | - Claudio Hetz
- Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago, Chile
- Center for Geroscience, Brain Health and Metabolism, Santiago, Chile
- Cellular and Molecular Biology Program, Institute of Biomedical Sciences, University of Chile, Santiago, Chile
| | - Hidenori Ichijo
- Laboratory of Cell Signaling, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Marja Jäättelä
- Cell Death and Metabolism Unit, Center for Autophagy, Recycling and Disease, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Bertrand Joseph
- Toxicology Unit, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Philipp J Jost
- III Medical Department for Hematology and Oncology, Technical University Munich, Munich, Germany
| | - Philippe P Juin
- Team 8 "Stress adaptation and tumor escape", CRCINA-INSERM U1232, Nantes, France
- University of Nantes, Nantes, France
- University of Angers, Angers, France
- Institute of Cancer Research in Western France, Saint-Herblain, France
| | - William J Kaiser
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center, San Antonio, TX, USA
| | - Michael Karin
- Laboratory of Gene Regulation and Signal Transduction, University of California San Diego, La Jolla, CA, USA
- Department of Pathology, University of California San Diego, La Jolla, CA, USA
- Department of Pharmacology, University of California San Diego, La Jolla, CA, USA
- Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
| | - Thomas Kaufmann
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Oliver Kepp
- Paris Descartes/Paris V University, Paris, France
- Faculty of Medicine, Paris Sud/Paris XI University, Kremlin-Bicêtre, France
- Metabolomics and Cell Biology Platforms, Gustave Roussy Comprehensive Cancer Campus, Villejuif, France
- Team 11 labeled "Ligue Nationale contre le Cancer", Cordeliers Research Center, Paris, France
- INSERM U1138, Paris, France
- Pierre et Marie Curie/Paris VI University, Paris, France
| | - Adi Kimchi
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
| | - Richard N Kitsis
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
- Albert Einstein Cancer Center, Albert Einstein College of Medicine, Bronx, NY, USA
- Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
- Einstein-Mount Sinai Diabetes Research Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Daniel J Klionsky
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Richard A Knight
- Medical Research Council (MRC) Toxicology Unit, Leicester University, Leicester, UK
| | - Sharad Kumar
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, South Australia, Australia
| | - Sam W Lee
- Cutaneous Biology Research Center, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - John J Lemasters
- Center for Cell Death, Injury and Regeneration, Department of Drug Discovery & Biomedical Sciences, Medical University of South Carolina, Charleston, SC, USA
- Center for Cell Death, Injury and Regeneration, Department of Biochemistry & Molecular Biology, Medical University of South Carolina, Charleston, SC, USA
| | - Beth Levine
- Center for Autophagy Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Andreas Linkermann
- Division of Nephrology, University Hospital Carl Gustav Carus Dresden, Dresden, Germany
| | - Stuart A Lipton
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA
- Neuroscience Translational Center, The Scripps Research Institute, La Jolla, CA, USA
| | - Richard A Lockshin
- Department of Biology, St. John's University, Queens, NY, USA
- Queens College of the City University of New York, Queens, NY, USA
| | - Carlos López-Otín
- Departament of Biochemistry and Molecular Biology, Faculty of Medicine, University Institute of Oncology of Asturias (IUOPA), University of Oviedo, Oviedo, Spain
| | - Scott W Lowe
- Howard Hughes Medical Institute, The Rockefeller University, New York, NY, USA
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Tom Luedde
- Division of Gastroenterology, Hepatology and Hepatobiliary Oncology, University Hospital RWTH Aachen, Aachen, Germany
| | - Enrico Lugli
- Laboratory of Translational Immunology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
- Humanitas Flow Cytometry Core, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Marion MacFarlane
- Medical Research Council (MRC) Toxicology Unit, Leicester University, Leicester, UK
| | - Frank Madeo
- Department Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
- BioTechMed Graz, Graz, Austria
| | - Michal Malewicz
- Medical Research Council (MRC) Toxicology Unit, Leicester University, Leicester, UK
| | - Walter Malorni
- National Centre for Gender Medicine, Italian National Institute of Health (ISS), Rome, Italy
| | - Gwenola Manic
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
- Unit of Cellular Networks and Molecular Therapeutic Targets, Department of Research, Advanced Diagnostics and Technological Innovation, Regina Elena National Cancer Institute, Rome, Italy
| | - Jean-Christophe Marine
- Laboratory for Molecular Cancer Biology, VIB Center for Cancer Biology, Leuven, Belgium
- Laboratory for Molecular Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Seamus J Martin
- Departments of Genetics, Trinity College, University of Dublin, Dublin 2, Ireland
| | - Jean-Claude Martinou
- Department of Cell Biology, Faculty of Sciences, University of Geneva, Geneva, Switzerland
| | - Jan Paul Medema
- Laboratory for Experimental Oncology and Radiobiology (LEXOR), Center for Experimental Molecular Medicine (CEMM), Academic Medical Center (AMC), University of Amsterdam, Amsterdam, The Netherlands
- Cancer Genomics Center, Amsterdam, The Netherlands
| | - Patrick Mehlen
- Apoptosis, Cancer and Development laboratory, CRCL, Lyon, France
- Team labeled "La Ligue contre le Cancer", Lyon, France
- LabEx DEVweCAN, Lyon, France
- INSERM U1052, Lyon, France
- CNRS UMR5286, Lyon, France
- Department of Translational Research and Innovation, Léon Bérard Cancer Center, Lyon, France
| | - Pascal Meier
- The Breast Cancer Now Toby Robins Research Centre, Institute of Cancer Research, Mary-Jean Mitchell Green Building, Chester Beatty Laboratories, London, UK
| | - Sonia Melino
- Department of Chemical Sciences and Technologies, University of Rome, Tor Vergata, Rome, Italy
| | - Edward A Miao
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
- Center for Gastrointestinal Biology and Disease, University of North Carolina, Chapel Hill, NC, USA
| | - Jeffery D Molkentin
- Howard Hughes Medical Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Ute M Moll
- Department of Pathology, Stony Brook University, Stony Brook, NY, USA
| | - Cristina Muñoz-Pinedo
- Cell Death Regulation Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), Hospitalet de Llobregat, Barcelona, Spain
| | - Shigekazu Nagata
- Laboratory of Biochemistry and Immunology, World Premier International (WPI) Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
| | - Gabriel Nuñez
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI, USA
- Comprehensive Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Andrew Oberst
- Department of Immunology, University of Washington, Seattle, WA, USA
- Center for Innate Immunity and Immune Disease, Seattle, WA, USA
| | - Moshe Oren
- Department of Molecular Cell Biology, Weizmann Institute, Rehovot, Israel
| | - Michael Overholtzer
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Michele Pagano
- Laura and Isaac Perlmutter Cancer Center, New York University School of Medicine, New York, NY, USA
- Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY, USA
- Howard Hughes Medical Institute, New York University School of Medicine, New York, NY, USA
| | - Theocharis Panaretakis
- Department of Genitourinary Medical Oncology, University of Texas, MD Anderson Cancer Center, Houston, TX, USA
- Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | - Manolis Pasparakis
- Institute for Genetics, Center for Molecular Medicine (CMMC), University of Cologne, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Josef M Penninger
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Campus Vienna BioCentre, Vienna, Austria
| | - David M Pereira
- REQUIMTE/LAQV, Laboratory of Pharmacognosy, Department of Chemistry, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Shazib Pervaiz
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore, Singapore
- National University Cancer Institute, National University Health System (NUHS), Singapore, Singapore
| | - Marcus E Peter
- Division of Hematology/Oncology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Mauro Piacentini
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
- National Institute for Infectious Diseases IRCCS "Lazzaro Spallanzani", Rome, Italy
| | - Paolo Pinton
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
- LTTA center, University of Ferrara, Ferrara, Italy
- Maria Cecilia Hospital, GVM Care & Research, Health Science Foundation, Cotignola, Italy
| | - Jochen H M Prehn
- Department of Physiology, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Hamsa Puthalakath
- Department of Biochemistry, La Trobe University, Victoria, Australia
| | - Gabriel A Rabinovich
- Laboratory of Immunopathology, Institute of Biology and Experimental Medicine (IBYME), National Council of Scientific and Technical Research (CONICET), Buenos Aires, Argentina
- Department of Biological Chemistry, Faculty of Exact and Natural Sciences, University of Buenos Aires, Buenos Aires, Argentina
| | - Markus Rehm
- Institute of Cell Biology and Immunology, University of Stuttgart, Stuttgart, Germany
- Stuttgart Research Center Systems Biology, Stuttgart, Germany
| | - Rosario Rizzuto
- Department of Biomedical Sciences, University of Padua, Padua, Italy
| | - Cecilia M P Rodrigues
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, Lisbon, Portugal
| | - David C Rubinsztein
- Department of Medical Genetics, Cambridge Institute for Medical Research (CIMR), University of Cambridge, Cambridge, UK
| | - Thomas Rudel
- Department of Microbiology, Biocenter, University of Würzburg, Würzburg, Germany
| | - Kevin M Ryan
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - Emre Sayan
- Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Luca Scorrano
- Department of Biology, University of Padua, Padua, Italy
- Venetian Institute of Molecular Medicine, Padua, Italy
| | - Feng Shao
- National Institute of Biological Sciences, Beijing, China
| | - Yufang Shi
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Chinese Academy of Sciences, Shanghai, China
- Jiangsu Key Laboratory of Stem Cells and Medicinal Biomaterials, Institutes for Translational Medicine, Soochow University, Suzhou, China
- The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, Soochow University, Suzhou, China
| | - John Silke
- Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
- Division of Inflammation, Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Antonella Sistigu
- Institute of General Pathology, Catholic University "Sacro Cuore", Rome, Italy
- Unit of Tumor Immunology and Immunotherapy, Department of Research, Advanced Diagnostics and Technological Innovation, Regina Elena National Cancer Institute, Rome, Italy
| | - Brent R Stockwell
- Department of Biological Sciences, Columbia University, New York, NY, USA
- Department of Chemistry, Columbia University, New York, NY, USA
| | - Andreas Strasser
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
| | - Gyorgy Szabadkai
- Department of Biomedical Sciences, University of Padua, Padua, Italy
- Department of Cell and Developmental Biology, University College London Consortium for Mitochondrial Research, London, UK
- Francis Crick Institute, London, UK
| | | | - Daolin Tang
- The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
- Center for DAMP Biology, Guangzhou Medical University, Guangzhou, Guangdong, China
- Key Laboratory for Major Obstetric Diseases of Guangdong Province, Guangzhou Medical University, Guangzhou, Guangdong, China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou Medical University, Guangzhou, Guangdong, China
- Key Laboratory for Protein Modification and Degradation of Guangdong Province, Guangzhou Medical University, Guangzhou, Guangdong, China
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nektarios Tavernarakis
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas Medical School, University of Crete, Heraklion, Greece
| | - Andrew Thorburn
- Department of Pharmacology, University of Colorado, Aurora, CO, USA
| | | | - Boris Turk
- Department Biochemistry and Molecular Biology, "Jozef Stefan" Institute, Ljubljana, Slovenia
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia
| | - Tom Vanden Berghe
- VIB Center for Inflammation Research (IRC), Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Peter Vandenabeele
- VIB Center for Inflammation Research (IRC), Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Matthew G Vander Heiden
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Andreas Villunger
- Division of Developmental Immunology, Innsbruck Medical University, Innsbruck, Austria
| | - Herbert W Virgin
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | | | - Domagoj Vucic
- Department of Early Discovery Biochemistry, Genentech, South San Francisco, CA, USA
| | - Erwin F Wagner
- Genes, Development and Disease Group, Cancer Cell Biology Program, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Henning Walczak
- Centre for Cell Death, Cancer and Inflammation, UCL Cancer Institute, University College London, London, UK
| | - David Wallach
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Ying Wang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - James A Wells
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA
| | - Will Wood
- School of Cellular and Molecular Medicine, Faculty of Biomedical Sciences, University of Bristol, Bristol, UK
| | - Junying Yuan
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Zahra Zakeri
- Department of Biology, Queens College of the City University of New York, Queens, NY, USA
| | - Boris Zhivotovsky
- Toxicology Unit, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
- Faculty of Fundamental Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - Laurence Zitvogel
- Faculty of Medicine, Paris Sud/Paris XI University, Kremlin-Bicêtre, France
- Gustave Roussy Comprehensive Cancer Institute, Villejuif, France
- INSERM U1015, Villejuif, France
- Center of Clinical Investigations in Biotherapies of Cancer (CICBT) 1428, Villejuif, France
| | - Gerry Melino
- Medical Research Council (MRC) Toxicology Unit, Leicester University, Leicester, UK
- Department of Experimental Medicine and Surgery, University of Rome "Tor Vergata", Rome, Italy
| | - Guido Kroemer
- Paris Descartes/Paris V University, Paris, France.
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden.
- Metabolomics and Cell Biology Platforms, Gustave Roussy Comprehensive Cancer Campus, Villejuif, France.
- Team 11 labeled "Ligue Nationale contre le Cancer", Cordeliers Research Center, Paris, France.
- INSERM U1138, Paris, France.
- Pierre et Marie Curie/Paris VI University, Paris, France.
- Biology Pole, European Hospital George Pompidou, AP-HP, Paris, France.
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Mughal MJ, Xi P, Yi Z, Jing F. Aflatoxin B1 invokes apoptosis via death receptor pathway in hepatocytes. Oncotarget 2018; 8:8239-8249. [PMID: 28030812 PMCID: PMC5352397 DOI: 10.18632/oncotarget.14158] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 11/24/2016] [Indexed: 11/25/2022] Open
Abstract
The fungal metabolites produced by Aspergillus flavus and Aspergillus parasiticus cause detrimental health effects on humans and animals. Particularly aflatoxin B1 (AFB1) is the most studied and a well-known global carcinogen, producing hepatotoxic, genotoxic and immunotoxic effects in multiple species. AFB1 is shown to provoke liver dysfunctioning by causing hepatocytes apoptosis and disturbing cellular enzymatic activities. In liver, AFB1 causes apoptosis via extrinsic mechanism because of high expression of death receptor pathway. The detailed mechanism of AFB1 induced hepatocytes apoptosis, via death receptor pathway still remains elusive. So the present study was conducted to explore apoptotic mechanism initiated by death receptors and associated genes in aflatoxin B1 induced liver apoptosis in chickens fed with AFB1 for 3 weeks. Results from the present study displayed histopathological and ultrastructural changes in liver such as hydropic degeneration, fatty vacuolar degeneration and proliferation of bile duct in hepatocytes in AFB1 group, along with imbalance between reactive oxygen species (ROS) and antioxidant defense system upon AFB1 ingestion. Moreover, AFB1 intoxicated chickens showed upregulation of death receptors FAS, TNFR1 and associated genes and downregulation of inhibitory apoptotic proteins XIAP and BCL-2. The results obtained from this novel and comprehensive study including histopathological, ultrastructural, flow cytometrical and death receptor pathway gene expression profiles, will facilitate better understanding of mechanisms and involvement of death receptor pathway in hepatocytes apoptosis induced by AFB1 and ultimately may be helpful in bringing down the toxigenic potential of AFB1.
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Affiliation(s)
- Muhammad Jameel Mughal
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, PR China
| | - Peng Xi
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), College of Life Sciences, China West Normal University, Nanchong, Sichuan, China
| | - Zhou Yi
- Life Science Department, Sichuan Agricultural University, Yaan, Sichuan, PR China
| | - Fang Jing
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, PR China
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49
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Yuan S, Wu B, Yu Z, Fang J, Liang N, Zhou M, Huang C, Peng X. The mitochondrial and endoplasmic reticulum pathways involved in the apoptosis of bursa of Fabricius cells in broilers exposed to dietary aflatoxin B1. Oncotarget 2018; 7:65295-65306. [PMID: 27542244 PMCID: PMC5323156 DOI: 10.18632/oncotarget.11321] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 07/28/2016] [Indexed: 12/21/2022] Open
Abstract
Aflatoxin B1 (AFB1), a toxic metabolite produced by some fungi, exerts well-known hepatocarcinogenic and immunosuppressive effects, the latter can increase the apoptotic immune cells in vitro. However, it is largely unknown that which signaling pathways contribute to excessive apoptosis of immune cells which induced by AFB1. In this study, we investigated the roles of the mitochondria, endoplasmic reticulum (ER) and death receptor activated apoptotic pathways in the bursal of Fabricius (BF) cells in the broilers exposed to AFB1 diet. We found that (1) AFB1 diet induced morphological changes in the BF. (2) FCM and TUNEL methods showed that excessive apoptosis could be resulted from AFB1 intake. (3) AFB1-induced apoptosis of bursal cells involved mitochondrial pathway (increase of Bax, Bak, cytC, caspase-9, Apaf-1, caspase-3 and decrease of Bcl-2 and Bcl-xL) and ER pathway (increase of Grp78/Bip, Grp94 and CaM). (4) Oxidative stress was confirmed in the BF of chicken fed on AFB1 diet. Overall, this work is the first to demonstrate that the activation of mitochondria and ER apoptosis pathways can lead to excessive apoptosis in BF cells, and oxidative stress is a crucial driver during AFB1 exposure.
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Affiliation(s)
- Shibin Yuan
- Department of Wild Animal Disease, College of Life Science, China West Normal University, Nanchong 637009, Sichuan, The People's Republic of China.,Key Laboratory of Southwest China Wildlife Resources Conservation (China West Normal University), Ministry of Education, Nanchong 637009, Sichuan, The People's Republic of China
| | - Bangyuan Wu
- Department of Wild Animal Disease, College of Life Science, China West Normal University, Nanchong 637009, Sichuan, The People's Republic of China.,Key Laboratory of Southwest China Wildlife Resources Conservation (China West Normal University), Ministry of Education, Nanchong 637009, Sichuan, The People's Republic of China
| | - Zhengqiang Yu
- Department of Animal Pathlogy, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an 625014, Sichuan, The People's Republic of China
| | - Jing Fang
- Department of Animal Pathlogy, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an 625014, Sichuan, The People's Republic of China
| | - Na Liang
- Department of Animal Pathlogy, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an 625014, Sichuan, The People's Republic of China
| | - Mingqiang Zhou
- Department of Wild Animal Disease, College of Life Science, China West Normal University, Nanchong 637009, Sichuan, The People's Republic of China.,Key Laboratory of Southwest China Wildlife Resources Conservation (China West Normal University), Ministry of Education, Nanchong 637009, Sichuan, The People's Republic of China
| | - Cheng Huang
- Department of Wild Animal Disease, College of Life Science, China West Normal University, Nanchong 637009, Sichuan, The People's Republic of China.,Key Laboratory of Southwest China Wildlife Resources Conservation (China West Normal University), Ministry of Education, Nanchong 637009, Sichuan, The People's Republic of China
| | - Xi Peng
- Department of Wild Animal Disease, College of Life Science, China West Normal University, Nanchong 637009, Sichuan, The People's Republic of China.,Key Laboratory of Southwest China Wildlife Resources Conservation (China West Normal University), Ministry of Education, Nanchong 637009, Sichuan, The People's Republic of China
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50
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Qi H, Jiang Y, Yin Z, Jiang K, Li L, Shuai J. Optimal pathways for the assembly of the Apaf-1·cytochrome c complex into apoptosome. Phys Chem Chem Phys 2018; 20:1964-1973. [PMID: 29299551 DOI: 10.1039/c7cp06726g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The formation of a heptameric apoptosome is a crucial event in the intrinsic cell death pathway. Considerable progress has been made towards unraveling the constituents and the structure of the apoptosome as well as the mechanism of apoptosome-mediated caspase-9 activation. However, a significant gap remains in the understanding of this process, i.e., how seven Apaf-1·cytochrome c complexes stepwisely assemble into an apoptosome. Here, we construct a biophysical model that incorporates current biochemical knowledge about the formation of apoptosome. We propose 11 elementary routes and enumerate all 2047 possible assembly pathways from the Apaf-1·cytochrome c complex to the heptameric apoptosome. By combining mathematical analysis and numerical simulation, we find that two elementary routes are the most favorable biochemical reaction routes and there are 52 optimal assembly pathways which are economical and relatively fast. Our study yields the first comprehensive analysis of apoptosome assembly and provides insights into complex assembly pathways.
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Affiliation(s)
- Hong Qi
- Complex Systems Research Center, Shanxi University, Taiyuan 030006, China
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