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Hao F, Gu L, Zhong D. TP53 Mutation Mapping in Advanced Non-Small Cell Lung Cancer: A Real-World Retrospective Cohort Study. Curr Oncol 2022; 29:7411-7419. [PMID: 36290859 PMCID: PMC9599964 DOI: 10.3390/curroncol29100582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 09/30/2022] [Accepted: 10/01/2022] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND TP53 is frequently mutated in solid tumors, but its basic mutation mapping is mixed, particularly in aggressive-stage lung cancer. EXPERIMENTAL DESIGN We curated a total of 139 advanced non-small cell lung cancer (NSCLC) patients who harbored wild-type TP53 (TP53wt) or mutated TP53 (TP53mut) based on next-generation sequencing (NGS) to analyze multiple-dimensional data types, including tumor mutation burden (TMB), programmed death receptor ligand 1 (PD-L1) expression, co-mutant alterations, hotspot mutations distribution, and therapy response. RESULTS TP53 was evident in 125 mutations and significantly associated with male sex, adenocarcinoma differentiation, smoking history, PD-L1 tumor proportion score, and TMB level. The most frequent mutations were distributed on exon 8, but there were no distinct hotspot mutations. After outlining the co-mutation genes, it is interesting to note that DNA damage repair (DDR) genes were frequent alterations in the mutated TP53 cohort. Even though there was no significant difference between the TP53wt and TP53mut cohorts on therapy response, patients with nucleotide variation in G>T achieved a relatively higher durable clinical benefit (DCB) rate. CONCLUSIONS This real-world retrospective study suggests that molecular stratification on the basis of TP53 mutations should be deeply explored for NSCLC to optimize and modify clinical therapy choices.
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Kowalski A, Malinowska K, Olszewski J, Zielińska-Bliźniewska H. Expression of Programmed Death Receptor 1 (PD-1) Gene and Its Ligand (PD-L1) in Patients with Laryngeal Cancer. Biomolecules 2021; 11:biom11070970. [PMID: 34356594 PMCID: PMC8301886 DOI: 10.3390/biom11070970] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/25/2021] [Accepted: 06/29/2021] [Indexed: 12/17/2022] Open
Abstract
(1) Background: The interaction of the programmed death receptor (PD-1) with its ligand 1 (PD-L1) allows cancer cells to escape from the control of the immune system. Research evaluating the expression of immune checkpoint genes in the tissues of laryngeal tumors may contribute to the introduction of new effective immunotherapeutic methods in this group of neoplasms. The aim of this study was to evaluate the expression of the gene for the programmed death receptor (PD-1) and its ligand (PD-L1) in laryngeal tumors (T1, T2, T3) in patients without lymph node involvement and distant metastases. (2) Methods: The study included 73 patients: 39 of them were diagnosed with carcinoma planoepiteliale keratodes (study group) and 34 with nasal septal deviation undergoing septoplasty (control group). Biological material for molecular tests (Real time PCR) was collected during surgical procedures. Furthermore, all study participants completed a questionnaire regarding, among others, smoking and body weight. (3) Results: Gene expression for programmed death receptor 1 (PD-1) and its ligand 1 (PD-L1) was, statistically, significantly higher (p < 0.0001) in tumor tissue than in unchanged mucosa. Moreover, it was found that the greater the tumor size, the higher the expression level of the tested molecules. (4) Conclusions: Although further research on the role of the PD-1/PD-L1 pathway in laryngeal tumors is necessary, the presented reports are promising and may constitute a contribution to considerations on the introduction of targeted immunotherapy with anti-PD1 and anti-PD-L1 monoclonal antibodies in the treatment of these tumors.
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Affiliation(s)
- Andrzej Kowalski
- Department of Otolaryngology, Laryngological Oncology, Audiology and Phoniatrics, Medical University of Lodz, 90-549 Lodz, Poland;
- Correspondence: ; Tel.: +48-506271676
| | - Katarzyna Malinowska
- Department of Allergology and Respiratory Rehabilitation, Medical University of Lodz, 90-725 Lodz, Poland; (K.M.); (H.Z.-B.)
| | - Jurek Olszewski
- Department of Otolaryngology, Laryngological Oncology, Audiology and Phoniatrics, Medical University of Lodz, 90-549 Lodz, Poland;
| | - Hanna Zielińska-Bliźniewska
- Department of Allergology and Respiratory Rehabilitation, Medical University of Lodz, 90-725 Lodz, Poland; (K.M.); (H.Z.-B.)
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3
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Yin F, Zhou H, Fang Y, Li C, He Y, Yu L, Wan H, Yang J. Astragaloside IV alleviates ischemia reperfusion-induced apoptosis by inhibiting the activation of key factors in death receptor pathway and mitochondrial pathway. J Ethnopharmacol 2020; 248:112319. [PMID: 31639488 DOI: 10.1016/j.jep.2019.112319] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 10/06/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Apoptosis plays an important role in cerebral ischemia-reperfusion injury and triggers a series of pathological changes which may even be life-threatening. Astragaloside-IV (AS-IV), a natural compound extracted from Astragalus (Astragalus membranaceus (Fisch.) Bunge., Leguminosae, Huangqi in Chinese), showed neuroprotective effects in the study of cerebral ischemia-reperfusion injury. In this study we investigate the effects of AS-IV on apoptosis induced by transient cerebral ischemia and reperfusion in rats, as well as the associated regulatory factors. METHODS AS-IV was administrated to male Sprague-Dawley (SD) rats after transient cerebral ischemia and reperfusion surgery (12.5, 25, and 50 mg/kg, once per day, continued for 7 days after surgey). After seven days of continuous administration, neurological function, cerebral infarction volume, and pathological changes of brain tissue were detected. Fas, FasL, Caspase-8, Bax, and Bcl-2 mRNA levels were determined by real-time PCR. Caspase-8, Bid, Cytochrome C (Cyto C), cleaved Caspase-3 proteins were determined by western blot and immunohistochemistry was used to quantify Cyto C. RESULTS AS-IV significantly attenuated the neurological deficit in rats with ischemica-reperfusion injury, and reduced cerebral infarction and neuronal apoptosis. AS-IV inhibited the mRNA upregulation of Fas, FasL, Caspase-8, and Bax/Bcl-2. Furthermore, the protein level of apoptosis cytokines Caspase-8, Bid, cleaved Caspase-3 and Cyto C were also inhibited after ischemia reperfusion, suggesting that AS-IV might alleviate ischemia reperfusion-induced apoptosis by inhibiting the activation of key factors in death receptor pathway and mitochondrial pathway.
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Affiliation(s)
- Fei Yin
- Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Huifen Zhou
- Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Yuchen Fang
- Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Chang Li
- Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Yu He
- Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Li Yu
- Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Haitong Wan
- Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Jiehong Yang
- Zhejiang Chinese Medical University, Hangzhou, 310053, China.
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Moerke C, Jaco I, Dewitz C, Müller T, Jacobsen AV, Gautheron J, Fritsch J, Schmitz J, Bräsen JH, Günther C, Murphy JM, Kunzendorf U, Meier P, Krautwald S. The anticonvulsive Phenhydan ® suppresses extrinsic cell death. Cell Death Differ 2019; 26:1631-1645. [PMID: 30442947 PMCID: PMC6748113 DOI: 10.1038/s41418-018-0232-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 10/30/2018] [Accepted: 10/30/2018] [Indexed: 12/27/2022] Open
Abstract
Different forms of regulated cell death-like apoptosis and necroptosis contribute to the pathophysiology of clinical conditions including ischemia-reperfusion injury, myocardial infarction, sepsis, and multiple sclerosis. In particular, the kinase activity of the receptor-interacting serine/threonine protein kinase 1 (RIPK1) is crucial for cell fate in inflammation and cell death. However, despite its involvement in pathological conditions, no pharmacologic inhibitor of RIPK1-mediated cell death is currently in clinical use. Herein, we screened a collection of clinical compounds to assess their ability to modulate RIPK1-mediated cell death. Our small-scale screen identified the anti-epilepsy drug Phenhydan® as a potent inhibitor of death receptor-induced necroptosis and apoptosis. Accordingly, Phenhydan® blocked activation of necrosome formation/activation as well as death receptor-induced NF-κB signaling by influencing the membrane function of cells, such as lipid raft formation, thus exerting an inhibitory effect on pathophysiologic cell death processes. By targeting death receptor signaling, the already FDA-approved Phenhydan® may provide new therapeutic strategies for inflammation-driven diseases caused by aberrant cell death.
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Affiliation(s)
- Caroline Moerke
- Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein, 24105, Kiel, Germany
| | - Isabel Jaco
- Toby Robins Research Centre, Institute of Cancer Research, London, SW3 6JB, UK
| | - Christin Dewitz
- Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein, 24105, Kiel, Germany
| | - Tammo Müller
- Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein, 24105, Kiel, Germany
| | - Annette V Jacobsen
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, 3052, Australia
| | - Jérémie Gautheron
- Université Pierre et Marie Curie, UMR_S 938, Inserm, 75012, Paris, France
| | - Jürgen Fritsch
- Institute for Clinical Microbiology and Hygiene, University of Regensburg, 93053, Regensburg, Germany
| | - Jessica Schmitz
- Department of Pathology, University of Hannover, 30625, Hannover, Germany
| | - Jan Hinrich Bräsen
- Department of Pathology, University of Hannover, 30625, Hannover, Germany
| | - Claudia Günther
- Department of Medicine 1, Friedrich-Alexander-University, 91052, Erlangen, Germany
| | - James M Murphy
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, 3052, Australia
| | - Ulrich Kunzendorf
- Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein, 24105, Kiel, Germany
| | - Pascal Meier
- Toby Robins Research Centre, Institute of Cancer Research, London, SW3 6JB, UK
| | - Stefan Krautwald
- Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein, 24105, Kiel, Germany.
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Ren L, Zhang J, Wang J, Wei J, Liu J, Li X, Zhu Y, Li Y, Guo C, Duan J, Sun Z, Zhou X. Silica nanoparticles induce spermatocyte cell apoptosis through microRNA-2861 targeting death receptor pathway. Chemosphere 2019; 228:709-720. [PMID: 31071558 DOI: 10.1016/j.chemosphere.2019.04.116] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 04/08/2019] [Accepted: 04/14/2019] [Indexed: 06/09/2023]
Abstract
Silica nanoparticles (SiNPs) are found in the environmental particulate matter and have been proved to pose an adverse effect on fertility. However, the relationship between miRNA and apoptosis induced by SiNPs in spermatogenesis and its underlying mechanism remains confusing. Therefore, the present study was designed to investigate the toxic effects of SiNPs on spermatogenic cells mediated through miRNAs. Spermatocyte cells were divided into 0 μg/mL and 5 μg/mL SiNPs groups, and the cells were collected and analyzed after passaging for 1, 10, 20, and 30 generations. miRNA profile and mRNA profile of spermatocyte cells were measured after exposure to SiNPs for 30 generations. Further, mimics and inhibitors of miRNA were used to verify the relationship between miRNA and their predicted target genes in the 30th-generation cells. The results showed that the degree of cell apoptosis in the SiNPs group significantly increased in the 30th generation. After exposure to SiNPs for 30 generations, the expression of 15 miRNAs was altered, including 5 upregulated miRNAs and 10 downregulated miRNAs. Of the 15 miRNAs, miR-138 and miR-2861 were related to the death receptor pathway. The miR-2861 mimic could target to regulate the mRNA expression of fas/fasl/ripk1 and increase the protein expression of Fas/FasL/RIPK1/FADD/caspase-8/caspase-3 of spermatogenic cells in the 30th generation, while the miR-138 inhibitor could not. In conclusion, SiNPs could cause apoptosis of spermatocyte cells by inhibiting the expression of miRNA-2861, thereby resulting in the upregulation of mRNA expression of fas/fasl/ripk1 and activating the death receptor pathway of spermatocyte cells. miRNA-2861 could be considered a biomarker of the toxic effect of SiNPs on spermatocyte cells. The main finding: Silica nanoparticles induce apoptosis in spermatocyte cells through microRNA-2861 inhibition, thereby upregulating mRNA expression of fas/fasl/ripk1 and activating the death receptor pathway of spermatocyte cells.
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Affiliation(s)
- Lihua Ren
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; School of Nursing, Peking University, Beijing, 100191, China
| | - Jin Zhang
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Ji Wang
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Jialiu Wei
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Jianhui Liu
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Xiangyang Li
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Yupeng Zhu
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Yanbo Li
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Caixia Guo
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Junchao Duan
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Zhiwei Sun
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Xianqing Zhou
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China.
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Wang K, Li Y, Dai Y, Han L, Zhu Y, Xue C, Wang P, Wang J. Peptides from Antarctic Krill ( Euphausia superba) Improve Osteoarthritis via Inhibiting HIF-2α-Mediated Death Receptor Apoptosis and Metabolism Regulation in Osteoarthritic Mice. J Agric Food Chem 2019; 67:3125-3133. [PMID: 30798606 DOI: 10.1021/acs.jafc.8b05841] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Osteoarthritis (OA) is a prevalent debilitating disease which is predominantly characterized by cartilage degeneration. In the current study, destabilization of the medial meniscus (DMM) mouse model was used to investigate the effects of Antarctic krill peptides (AKP) on cartilage protection. As observed, AKP clearly ameliorate cartilage degeneration as evidenced by increased cartilage thickness and cartilage area and decreased histological Osteoarthritis Research Society International (OARSI) scores. Toluidine blue staining showed that AKO remarkably inhibited the loss of cartilage matrix in mice with OA. Hypoxia-inducible factor-2α (HIF-2α) has a key role in catabolic regulation and inflammation cascades which are the main causes of OA. AKP can down-regulate the expression of HIF-2α and its downstream genes such as MMP-13, Adamts-5, IL-1β, iNOS, CXCL-1, and NOS2. Consistent with this, anabolic genes such as Acan and Col2α1 were restored after treatment with AKP. Chondrocyte apoptosis and the reduction in cartilage cell viability are also involved in the process of OA. The HIF-2α-mediated death receptor apoptosis signaling pathway has been involved in the regulation of chondrocyte apoptosis. AKP can reduce the expressions of key pro-apoptosis genes in Fas-FasL and DR3-DR3L signaling pathways such as Fas, FasL, FADD, caspase8, caspase3, DR3, DR3L, RIP, and NF-κB. In addition, expressions of antiapoptosis genes such as c-AIP and c-FLIP were increased significantly. These findings indicate that AKP can be used as a new functional factor in the development of functional foods and chondroprotective drugs.
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Affiliation(s)
- Kai Wang
- College of Food Science and Engineering , Ocean University of China , Qingdao , Shandong Province 266003 , China
| | - Yuanyuan Li
- College of Food Science and Engineering , Ocean University of China , Qingdao , Shandong Province 266003 , China
| | - Yufeng Dai
- College of Food Science and Engineering , Ocean University of China , Qingdao , Shandong Province 266003 , China
| | - Lihau Han
- College of Food Science and Engineering , Ocean University of China , Qingdao , Shandong Province 266003 , China
| | - Yujie Zhu
- College of Food Science and Engineering , Ocean University of China , Qingdao , Shandong Province 266003 , China
| | - Changhu Xue
- College of Food Science and Engineering , Ocean University of China , Qingdao , Shandong Province 266003 , China
| | - Peng Wang
- College of Food Science and Engineering , Ocean University of China , Qingdao , Shandong Province 266003 , China
| | - Jingfeng Wang
- College of Food Science and Engineering , Ocean University of China , Qingdao , Shandong Province 266003 , China
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Liu J, Zhao H, Wang Y, Shao Y, Li J, Xing M. Alterations of antioxidant indexes and inflammatory cytokine expression aggravated hepatocellular apoptosis through mitochondrial and death receptor-dependent pathways in Gallus gallus exposed to arsenic and copper. Environ Sci Pollut Res Int 2018; 25:15462-15473. [PMID: 29569195 DOI: 10.1007/s11356-018-1757-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 03/13/2018] [Indexed: 06/08/2023]
Abstract
In this study, we sought to investigate the effects of sub-chronic exposure of arsenic (As) and copper (Cu) on oxidative stress, inflammatory response, and mitochondria and death receptor apoptosis pathways in chicken liver. Seventy-two 1-day-old male Hy-line chickens were treated with basal diet, 30 mg/kg arsenic trioxide (As2O3), or/and 300 mg/kg copper sulfate (CuSO4) for 4, 8, and 12 weeks. Study revealed that exposure to As or/and Cu undermined the antioxidant function and increased lipid peroxidation. Worse yet, liver cell swollen, vacuolar degeneration, and inflammatory cell infiltration were accompanied by an increase of the nuclear factor-κB (NF-κB) and its downstream inflammation-related genes after exposure to As or/and Cu. Furthermore, mitochondria swollen and chromatin condensation were found in As and Cu groups, and hepatocyte nuclear membrane rupture and markedly increased (P < 0.01) apoptosis index were observed in As combined with Cu group. Meanwhile, the transcription and protein expression levels of Bcl-2-associated X protein (Bax), p53, cytochrome c (Cyt c), and caspase-3, 8, 9 were upregulated and B cell lymphoma-2 (Bcl-2) was downregulated in As, Cu, and As + Cu groups in the liver tissues (P < 0.05, P < 0.01). Our results indicated that exposure to As or/and Cu could lead to oxidative stress, inflammatory response, and tissue damage and aggravate hepatocellular apoptosis through mitochondrial and death receptor-dependent pathways in chicken liver. And As and Cu showed a possible synergistic relationship in liver damage.
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Affiliation(s)
- Juanjuan Liu
- Department of Physiology, College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Hongjing Zhao
- Department of Physiology, College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Yu Wang
- Department of Physiology, College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Yizhi Shao
- Department of Physiology, College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Jinglun Li
- Department of Physiology, College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Mingwei Xing
- Department of Physiology, College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China.
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Ferreira IG, Pucci M, Venturi G, Malagolini N, Chiricolo M, Dall'Olio F. Glycosylation as a Main Regulator of Growth and Death Factor Receptors Signaling. Int J Mol Sci 2018; 19:ijms19020580. [PMID: 29462882 PMCID: PMC5855802 DOI: 10.3390/ijms19020580] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 02/12/2018] [Accepted: 02/14/2018] [Indexed: 12/22/2022] Open
Abstract
Glycosylation is a very frequent and functionally important post-translational protein modification that undergoes profound changes in cancer. Growth and death factor receptors and plasma membrane glycoproteins, which upon activation by extracellular ligands trigger a signal transduction cascade, are targets of several molecular anti-cancer drugs. In this review, we provide a thorough picture of the mechanisms bywhich glycosylation affects the activity of growth and death factor receptors in normal and pathological conditions. Glycosylation affects receptor activity through three non-mutually exclusive basic mechanisms: (1) by directly regulating intracellular transport, ligand binding, oligomerization and signaling of receptors; (2) through the binding of receptor carbohydrate structures to galectins, forming a lattice thatregulates receptor turnover on the plasma membrane; and (3) by receptor interaction with gangliosides inside membrane microdomains. Some carbohydrate chains, for example core fucose and β1,6-branching, exert a stimulatory effect on all receptors, while other structures exert opposite effects on different receptors or in different cellular contexts. In light of the crucial role played by glycosylation in the regulation of receptor activity, the development of next-generation drugs targeting glyco-epitopes of growth factor receptors should be considered a therapeutically interesting goal.
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Affiliation(s)
- Inês Gomes Ferreira
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), General Pathology Building, University of Bologna, 40126 Bologna, Italy.
| | - Michela Pucci
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), General Pathology Building, University of Bologna, 40126 Bologna, Italy.
| | - Giulia Venturi
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), General Pathology Building, University of Bologna, 40126 Bologna, Italy.
| | - Nadia Malagolini
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), General Pathology Building, University of Bologna, 40126 Bologna, Italy.
| | - Mariella Chiricolo
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), General Pathology Building, University of Bologna, 40126 Bologna, Italy.
| | - Fabio Dall'Olio
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), General Pathology Building, University of Bologna, 40126 Bologna, Italy.
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Hung CM, Liu LC, Ho CT, Lin YC, Way TD. Pterostilbene Enhances TRAIL-Induced Apoptosis through the Induction of Death Receptors and Downregulation of Cell Survival Proteins in TRAIL-Resistance Triple Negative Breast Cancer Cells. J Agric Food Chem 2017; 65:11179-11191. [PMID: 29164887 DOI: 10.1021/acs.jafc.7b02358] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Tumor necrosis factor-related apoptosis-induced ligand (TRAIL) is nontoxic to normal cells and preferentially cytotoxic to cancer cells. Recent data suggest that malignant breast cancer cells often become resistant to TRAIL. Pterostilbene (PTER), a naturally occurring analogue of resveratrol found in blueberries, is known to induce cancer cells to undergo apoptosis. In the present study, we examined whether PTER affects TRAIL-induced apoptosis and its mechanism in TRAIL-resistant triple negative breast cancer (TNBC) cells. Our data indicated that PTER induced apoptosis (14.68 ± 3.78% for 40 μM PTER vs 1.98 ± 0.25% for control, p < 0.01) in TNBC cells and enhanced TRAIL-induced apoptosis in TRAIL-resistant TNBC cells (18.45 ± 4.65% for 40 μM PTER vs 29.38 ± 6.35% for combination of 40 μM PTER and 100 ng/mL TRAIL, p < 0.01). We demonstrated that PTER induced death receptors DR5 and DR4 as well as decreased decoy receptor DcR-1 and DcR-2 expression. PTER also decreased the antiapoptotic proteins c-FLIPS/L, Bcl-Xl, Bcl-2, survivin, and XIAP. PTER induced the cleavage of bid protein and caused proapoptotic Bax accumulation. Moreover, we found that PTER induced the expression of DR4 and DR5 through the reactive oxygen species (ROS)/ endoplasmic reticulum (ER) stress/ERK 1/2 and p38/C/EBP-homologous protein (CHOP) signaling pathways. Overall, our results showed that PTER potentiated TRAIL-induced apoptosis via ROS-mediated CHOP activation leading to the expression of DR4 and DR5.
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Affiliation(s)
- Chao-Ming Hung
- Department of General Surgery, E-Da Hospital, I-Shou University , Kaohsiung, Taiwan
- School of Medicine, I-Shou University , Kaohsiung, Taiwan
| | - Liang-Chih Liu
- Department of Surgery, China Medical University Hospital , Taichung, Taiwan
- School of Medicine, College of Medicine, China Medical University , Taichung, Taiwan
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University , New Brunswick, New Jersey 08901, United States
| | - Ying-Chao Lin
- Division of Neurosurgery, Buddhist Tzu Chi General Hospital, Taichung Branch , Taichung, Taiwan
- School of Medicine, Tzu Chi University , Hualien, Taiwan
- Department of Medical Imaging and Radiological Science, Central Taiwan University of Science and Technology , Taichung, Taiwan
| | - Tzong-Der Way
- Department of Biological Science and Technology, College of Biopharmaceutical and Food Sciences, China Medical University , Taichung, Taiwan
- Department of Health and Nutrition Biotechnology, Asia University , Taichung, Taiwan
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10
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Mattisson IY, Björkbacka H, Wigren M, Edsfeldt A, Melander O, Fredrikson GN, Bengtsson E, Gonçalves I, Orho-Melander M, Engström G, Almgren P, Nilsson J. Elevated Markers of Death Receptor-Activated Apoptosis are Associated with Increased Risk for Development of Diabetes and Cardiovascular Disease. EBioMedicine 2017; 26:187-197. [PMID: 29208468 PMCID: PMC5836474 DOI: 10.1016/j.ebiom.2017.11.023] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 11/17/2017] [Accepted: 11/23/2017] [Indexed: 02/06/2023] Open
Abstract
Background An increased rate of cell death by apoptosis has been implicated in both diabetes and atherosclerosis. Apoptosis can be induced through activation of the death receptors TNF receptor 1 (TNFR-1), TRAIL receptor 2 (TRAILR-2) and Fas. Soluble forms of these receptors are found in plasma. The objective of this study was to determine if soluble death receptors are markers of receptor-activated apoptosis and predict risk for development of diabetes and cardiovascular events. Methods Fas ligand was used to induce apoptosis in peripheral blood mononuclear cells and INS-1 pancreatic β-cells and release of TNFR-1, TRAILR-2 and Fas measured by ELISA. Proximity Extension Assay was used to analyze plasma levels of TNFR-1, TRAILR-2 and Fas in baseline samples of 4742 subjects in the Malmö Diet and Cancer Study and related to development of diabetes and cardiovascular events during 19.2 years of follow-up. Results Activation of apoptosis by Fas ligand was associated with release of soluble Fas, TNFR-1 and TRAILR-2 in both cell types. Circulating levels of all three receptors were higher in subjects with diabetes and correlated with markers of impaired glucose metabolism in non-diabetic subjects. Among the latter, those in the highest tertile of soluble Fas, TNFR-1 and TRAILR-2 had increased risk for development of diabetes and cardiovascular events. These associations became weaker when adjusting for cardiovascular risk factors in Cox regression models, but remained significant for TRAILR-2 with incident diabetes, cardiovascular mortality, myocardial infarction and ischemic stroke, and for TNFR-1 with myocardial infarction. Conclusion The present study demonstrates an association between several cardiovascular risk factors and elevated levels of circulating markers of apoptotic cell death. It also shows that subjects with high levels of these biomarkers have increased risk of diabetes and CVD. This implies that soluble death receptors are markers of β-cell and vascular injury and potentially could be used as surrogate markers of therapeutic efficiency in risk factor interventions. •Receptor-activated apoptosis is associated with release of soluble death receptors that act as biomarkers of apoptosis •Several cardiovascular risk factors including markers of impaired glucose metabolism associate with elevated plasma levels of death receptors •Subjects with high plasma levels of death receptors have an increased risk of diabetes and cardiovascular disease Atherosclerosis has been proposed to develop in response to chronic arterial injury caused by cardiovascular risk factors. The present study provides clinical evidence for this hypothesis by demonstrating an association between several cardiovascular risk factors and elevated levels of circulating markers of apoptotic cell death and that subjects with high levels of these biomarkers have increased risk of cardiovascular mortality, MI and stroke. These observations point to the possibility that the plasma level of soluble death receptors can be used as surrogate markers of arterial injury and atherosclerotic disease activity in cardiovascular interventions. Finally, our findings imply that soluble death receptors also may serve as biomarkers of the damage caused by metabolic stress to β-cells and risk for development of type 2 diabetes.
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MESH Headings
- Aged
- Apoptosis/drug effects
- Biomarkers/blood
- Cardiovascular Diseases/diagnosis
- Cardiovascular Diseases/etiology
- Diabetes Mellitus/diagnosis
- Diabetes Mellitus/etiology
- Fas Ligand Protein/pharmacology
- Female
- Genome-Wide Association Study
- Genotype
- Humans
- Leukocytes, Mononuclear/cytology
- Leukocytes, Mononuclear/metabolism
- Male
- Middle Aged
- Polymorphism, Single Nucleotide
- Proportional Hazards Models
- Receptors, Death Domain/blood
- Receptors, Death Domain/genetics
- Receptors, Death Domain/metabolism
- Receptors, TNF-Related Apoptosis-Inducing Ligand/blood
- Receptors, TNF-Related Apoptosis-Inducing Ligand/genetics
- Receptors, Tumor Necrosis Factor, Type I/blood
- Receptors, Tumor Necrosis Factor, Type I/genetics
- Risk Factors
- fas Receptor/blood
- fas Receptor/genetics
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Affiliation(s)
| | | | - Maria Wigren
- Department of Clinical Sciences Malmö, Lund University, Sweden
| | - Andreas Edsfeldt
- Department of Clinical Sciences Malmö, Lund University, Sweden; Department of Cardiology - Coronary diseases, Skåne University Hospital, Sweden
| | - Olle Melander
- Department of Clinical Sciences Malmö, Lund University, Sweden
| | | | - Eva Bengtsson
- Department of Clinical Sciences Malmö, Lund University, Sweden
| | - Isabel Gonçalves
- Department of Clinical Sciences Malmö, Lund University, Sweden; Department of Cardiology - Coronary diseases, Skåne University Hospital, Sweden
| | | | - Gunnar Engström
- Department of Clinical Sciences Malmö, Lund University, Sweden
| | - Peter Almgren
- Department of Clinical Sciences Malmö, Lund University, Sweden
| | - Jan Nilsson
- Department of Clinical Sciences Malmö, Lund University, Sweden.
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11
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González-Juarbe N, Bradley KM, Shenoy AT, Gilley RP, Reyes LF, Hinojosa CA, Restrepo MI, Dube PH, Bergman MA, Orihuela CJ. Pore-forming toxin-mediated ion dysregulation leads to death receptor-independent necroptosis of lung epithelial cells during bacterial pneumonia. Cell Death Differ 2017; 24:917-928. [PMID: 28387756 PMCID: PMC5423117 DOI: 10.1038/cdd.2017.49] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 02/07/2017] [Accepted: 03/07/2017] [Indexed: 12/29/2022] Open
Abstract
We report that pore-forming toxins (PFTs) induce respiratory epithelial cell necroptosis independently of death receptor signaling during bacterial pneumonia. Instead, necroptosis was activated as a result of ion dysregulation arising from membrane permeabilization. PFT-induced necroptosis required RIP1, RIP3 and MLKL, and could be induced in the absence or inhibition of TNFR1, TNFR2 and TLR4 signaling. We detected activated MLKL in the lungs from mice and nonhuman primates experiencing Serratia marcescens and Streptococcus pneumoniae pneumonia, respectively. We subsequently identified calcium influx and potassium efflux as the key initiating signals responsible for necroptosis; also that mitochondrial damage was not required for necroptosis activation but was exacerbated by MLKL activation. PFT-induced necroptosis in respiratory epithelial cells did not involve CamKII or reactive oxygen species. KO mice deficient in MLKL or RIP3 had increased survival and reduced pulmonary injury during S. marcescens pneumonia. Our results establish necroptosis as a major cell death pathway active during bacterial pneumonia and that necroptosis can occur without death receptor signaling.
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Affiliation(s)
- Norberto González-Juarbe
- Department of Microbiology, The University of Alabama at Birmingham, 845 19th Street South, Birmingham, AL 35294-2170, USA
| | - Kelley Margaret Bradley
- Department of Microbiology, The University of Alabama at Birmingham, 845 19th Street South, Birmingham, AL 35294-2170, USA
| | - Anukul Taranath Shenoy
- Department of Microbiology, The University of Alabama at Birmingham, 845 19th Street South, Birmingham, AL 35294-2170, USA
| | - Ryan Paul Gilley
- Department of Microbiology and Immunology, The University of Texas Health Science Center at San Antonio, 8403 Floyd Curl Drive, San Antonio, TX 78229, USA
| | - Luis Felipe Reyes
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Cecilia Anahí Hinojosa
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Marcos Ignacio Restrepo
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
- Division of Pulmonary Diseases and Critical Care Medicine, South Texas Veterans Health Care System, San Antonio, TX 78229, USA
| | - Peter Herman Dube
- Department of Microbiology and Immunology, The University of Texas Health Science Center at San Antonio, 8403 Floyd Curl Drive, San Antonio, TX 78229, USA
| | - Molly Ann Bergman
- Department of Microbiology and Immunology, The University of Texas Health Science Center at San Antonio, 8403 Floyd Curl Drive, San Antonio, TX 78229, USA
| | - Carlos Javier Orihuela
- Department of Microbiology, The University of Alabama at Birmingham, 845 19th Street South, Birmingham, AL 35294-2170, USA
- Department of Microbiology and Immunology, The University of Texas Health Science Center at San Antonio, 8403 Floyd Curl Drive, San Antonio, TX 78229, USA
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12
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González R, De la Rosa ÁJ, Rufini A, Rodríguez-Hernández MA, Navarro-Villarán E, Marchal T, Pereira S, De la Mata M, Müller-Schilling M, Pascasio-Acevedo JM, Ferrer-Ríos MT, Gómez-Bravo MA, Padillo FJ, Muntané J. Role of p63 and p73 isoforms on the cell death in patients with hepatocellular carcinoma submitted to orthotopic liver transplantation. PLoS One 2017; 12:e0174326. [PMID: 28350813 PMCID: PMC5369777 DOI: 10.1371/journal.pone.0174326] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 03/07/2017] [Indexed: 12/24/2022] Open
Abstract
Background & Aims Patients with hepatocellular carcinoma (HCC) submitted to orthotopic liver transplantation (OLT) have a variable 5-year survival rate limited mostly by tumor recurrence. The etiology, age, sex, alcohol, Child-Pugh, and the immunesuppressor have been associated with tumour recurrence. The expression of ΔNp73 is related to the reduced survival of patients with HCC. The study evaluated the expression of p63 and p73 isoforms and cell death receptors, and their relation to tumour recurrence and survival. The results were in vitro validated in HCC cell lines. Methods HCC sections from patients submitted to OLT were used. The in vitro study was done in differentiated hepatitis B virus (HBV)-expressing Hep3B and control HepG2 cells. The expression of cell death receptors and cFLIPS/L, caspase-8 and -3 activities, and cell proliferation were determined in control and p63 and p73 overexpressing HCC cells. Results The reduced tumor expression of cell death receptors and TAp63 and TAp73, and increased ΔNp63 and ΔNp73 expression were associated with tumor recurrence and reduced survival. The in vitro study demonstrated that HBV-expressing Hep3B vs HepG2 cells showed reduced expression of p63 and p73, cell death receptors and caspase activation, and increased cFLIPL/cFLIPS ratio. The overexpression of TAp63 and TAp73 exerted a more potent pro-apoptotic and anti-proliferative effects in Hep3B than HepG2-transfected cells which was related to cFLIPL upregulation. Conclusions The reduction of TAp63 and TAp73 isoforms, rather than alteration of ΔN isoform expression, exerted a significant functional repercussion on cell death and proliferation in HBV-expressing HepB cells.
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Affiliation(s)
- Raúl González
- Institute of Biomedicine of Seville (IBiS), Hospital University “Virgen del Rocío”/IBiS/CSIC/University of Seville, Seville, Spain
| | - Ángel J. De la Rosa
- Institute of Biomedicine of Seville (IBiS), Hospital University “Virgen del Rocío”/IBiS/CSIC/University of Seville, Seville, Spain
| | - Alessandro Rufini
- Department of Cancer Studies, CRUK Leicester Cancer, Leicester, United Kingdom
| | - María A. Rodríguez-Hernández
- Institute of Biomedicine of Seville (IBiS), Hospital University “Virgen del Rocío”/IBiS/CSIC/University of Seville, Seville, Spain
| | - Elena Navarro-Villarán
- Institute of Biomedicine of Seville (IBiS), Hospital University “Virgen del Rocío”/IBiS/CSIC/University of Seville, Seville, Spain
| | - Trinidad Marchal
- Pathology Department, IMIBIC/Hospital University “Reina Sofía”, Córdoba, Spain
| | - Sheila Pereira
- Institute of Biomedicine of Seville (IBiS), Hospital University “Virgen del Rocío”/IBiS/CSIC/University of Seville, Seville, Spain
| | - Manuel De la Mata
- Gastroenterology Department, IMIBIC/Hospital University “Reina Sofía”, Córdoba, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
| | - Martina Müller-Schilling
- Gastroenterology and Hepatology Department of Internal Medicine IV, University Hospital Heidelberg, Heidelberg, Germany
| | - Juan M. Pascasio-Acevedo
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
- Gastroenterology Department, Hospital University “Virgen del Rocío”/IBiS/CSIC/University of Seville, Seville, Spain
| | - María T. Ferrer-Ríos
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
- Gastroenterology Department, Hospital University “Virgen del Rocío”/IBiS/CSIC/University of Seville, Seville, Spain
| | - Miguel A. Gómez-Bravo
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
- Department of General Surgery, Hospital University “Virgen del Rocío”/IBiS/CSIC/University of Seville, Seville, Spain
| | - Francisco J. Padillo
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
- Department of General Surgery, Hospital University “Virgen del Rocío”/IBiS/CSIC/University of Seville, Seville, Spain
| | - Jordi Muntané
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
- Department of General Surgery, Hospital University “Virgen del Rocío”/IBiS/CSIC/University of Seville, Seville, Spain
- * E-mail:
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13
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Unsain N, Dorval G, Sheen JH, Barker PA. Generation and characterization of mice bearing null alleles of nradd/Nrh2. Genesis 2016; 54:605-612. [PMID: 27775873 DOI: 10.1002/dvg.22989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 10/10/2016] [Accepted: 10/20/2016] [Indexed: 11/11/2022]
Abstract
The Neurotrophin receptor associated death domain gene (Nradd/Nrh2/Plaidd) is a type I transmembrane protein with a unique and short N-terminal extracellular domain and a transmembrane and intracellular domain that bears high similarity to the p75 neurotrophin receptor (p75NTR/Ngfr). Initial studies suggested that NRADD regulates neurotrophin signaling but very little is known about its physiological roles. We have generated and characterized NRADD conditional and germ-line null mouse lines. These mice are viable and fertile and dońt show evident abnormalities. However, NRADD deletion results in an increase in the proportion of dorsal root ganglion neurons expressing p75NTR. The NRADD conditional and complete knockout mouse lines generated are new and useful tools to study the physiological roles of NRADD. Birth Defects Research (Part A) 106:605-612, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Nicolas Unsain
- Laboratorio de Neurobiología, Instituto de Investigación Médica Mercedes y Martín Ferreyra, INIMEC-CONICET, Universidad Nacional de Córdoba, Friuli 2434, Córdoba, 5016, Argentina
| | - Genevieve Dorval
- Montreal Neurological Institute, McGill University, 3801 University Street, Montreal, QCH3A 2B4, Canada
| | - Jae Hyung Sheen
- Montreal Neurological Institute, McGill University, 3801 University Street, Montreal, QCH3A 2B4, Canada
| | - Philip A Barker
- Vice Principal Research University of British Columbia, Okanagan Campus, 3247 University Way, Kelowna, British Columbia, V1V1V7, Canada
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14
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Dai JJ, Niu YF, Wu CF, Zhang SH, Zhang DF. Both death receptor and mitochondria mediated apoptotic pathways participated the occurrence of apoptosis in porcine vitrified mii stage oocytes. Cryo Letters 2016; 37:129-136. [PMID: 27224525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND Oocytes vitrification is widely used for cryopreservation of female genetic resources. OBJECTIVE In order to illuminate the apoptotic pathways of porcine MII stage oocytes after vitrification. MATERIALS AND METHODS This study used in situ fluorescence staining and RT-PCR to detect the expression levels of some key molecules from death receptor and mitochondria mediated apoptotic pathways. RESULTS (1) Early stage apoptosis were detected in both PI staining survival oocytes and PI staining dead oocytes. (2) The fluorescence intensity of caspase 8, caspase 9, caspase 3 and pan caspase from vitrified oocytes were 32.03, 16.56, 16.70 and 8.43 respectively, which were much higher than those from fresh oocytes (4.02, 4.83, 4.23 and 3.08, P < 0.05). (3) Not only the genes from death receptor mediated apoptotic pathway, but also from mitochondrial mediated apoptotic pathway were changed greatly. CONCLUSION The death of porcine vitrified oocytes could be induced by apoptosis, both death receptor and mitochondria mediated apoptotic pathways participated the occurrence of apoptosis in porcine vitrified MII stage oocytes.
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Affiliation(s)
- J J Dai
- Institute of Animal Science and Veterinary Science, Shanghai Academy of Agricultural Sciences; Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai, China
| | - Y F Niu
- Institute of Animal Science and Veterinary Science, Shanghai Academy of Agricultural Sciences; Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai, China
| | - C F Wu
- Institute of Animal Science and Veterinary Science, Shanghai Academy of Agricultural Sciences; Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai, China
| | - S H Zhang
- Institute of Animal Science and Veterinary Science, Shanghai Academy of Agricultural Sciences; Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai, China
| | - D F Zhang
- Institute of Animal Science and Veterinary Science, Shanghai Academy of Agricultural Sciences; Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai, China.
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15
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Zhao Y, Scott NA, Fynch S, Elkerbout L, Wong WWL, Mason KD, Strasser A, Huang DC, Kay TWH, Thomas HE. Autoreactive T cells induce necrosis and not BCL-2-regulated or death receptor-mediated apoptosis or RIPK3-dependent necroptosis of transplanted islets in a mouse model of type 1 diabetes. Diabetologia 2015; 58:140-8. [PMID: 25301392 DOI: 10.1007/s00125-014-3407-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Accepted: 09/17/2014] [Indexed: 12/12/2022]
Abstract
AIMS/HYPOTHESIS Type 1 diabetes results from T cell-mediated destruction of pancreatic beta cells. The mechanisms of beta cell destruction in vivo, however, remain unclear. We aimed to test the relative roles of the main cell death pathways: apoptosis, necrosis and necroptosis, in beta cell death in the development of CD4(+) T cell-mediated autoimmune diabetes. METHODS We altered expression levels of critical cell death proteins in mouse islets and tested their ability to survive CD4(+) T cell-mediated attack using an in vivo graft model. RESULTS Loss of the B cell leukaemia/lymphoma 2 (BCL-2) homology domain 3-only proteins BIM, PUMA or BID did not protect beta cells from this death. Overexpression of the anti-apoptotic protein BCL-2 or combined deficiency of the pro-apoptotic multi-BCL2 homology domain proteins BAX and BAK also failed to prevent beta cell destruction. Furthermore, loss of function of the death receptor Fas or its essential downstream signalling molecule Fas-associated death domain (FADD) in islets was also not protective. Using electron microscopy we observed that dying beta cells showed features of necrosis. However, islets deficient in receptor-interacting serine/threonine protein kinase 3 (RIPK3), a critical initiator of necroptosis, were still normally susceptible to CD4(+) T cell-mediated destruction. Remarkably, simultaneous inhibition of apoptosis and necroptosis by combining loss of RIPK3 and overexpression of BCL-2 in islets did not protect them against immune attack either. CONCLUSIONS/INTERPRETATION Collectively, our data indicate that beta cells die by necrosis in autoimmune diabetes and that the programmed cell death pathways apoptosis and necroptosis are both dispensable for this process.
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MESH Headings
- Animals
- Apoptosis/genetics
- Apoptosis/physiology
- Autoimmunity/physiology
- Diabetes Mellitus, Experimental/immunology
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetes Mellitus, Type 1/immunology
- Diabetes Mellitus, Type 1/metabolism
- Diabetes Mellitus, Type 1/pathology
- Graft Rejection/genetics
- Graft Rejection/immunology
- Graft Rejection/metabolism
- Islets of Langerhans/immunology
- Islets of Langerhans/metabolism
- Islets of Langerhans/pathology
- Islets of Langerhans Transplantation/immunology
- Mice
- Mice, Inbred C57BL
- Mice, Inbred NOD
- Mice, Transgenic
- Necrosis/genetics
- Necrosis/immunology
- Proto-Oncogene Proteins c-bcl-2/genetics
- Proto-Oncogene Proteins c-bcl-2/physiology
- Receptor-Interacting Protein Serine-Threonine Kinases/genetics
- Receptor-Interacting Protein Serine-Threonine Kinases/physiology
- Receptors, Death Domain/genetics
- Receptors, Death Domain/physiology
- T-Lymphocytes/immunology
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Affiliation(s)
- Yuxing Zhao
- St Vincent's Institute of Medical Research, 41 Victoria Parade, Fitzroy, Melbourne, VIC, 3065, Australia
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16
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Shoeb M, Ramana KV, Srivastava SK. Aldose reductase inhibition enhances TRAIL-induced human colon cancer cell apoptosis through AKT/FOXO3a-dependent upregulation of death receptors. Free Radic Biol Med 2013; 63:280-90. [PMID: 23732517 PMCID: PMC3729926 DOI: 10.1016/j.freeradbiomed.2013.05.039] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 05/10/2013] [Accepted: 05/24/2013] [Indexed: 12/26/2022]
Abstract
One of the major problems associated with the chemotherapy of tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) that selectively kills tumor cells is decreased drug resistance. This warranted the development of safe novel pharmacological agents that could sensitize the tumor cells to TRAIL. Herein, we examined the role of aldose reductase (AR) in sensitizing cancer cells to TRAIL and potentiating TRAIL-induced apoptosis of human colon cancer cells. We demonstrate that AR inhibition potentiates TRAIL-induced cytotoxicity in cancer cells by upregulation of both death receptor (DR)-5 and DR4. Knockdown of DR5 and DR4 significantly (>85%) reduced the sensitizing effect of the AR inhibitor fidarestat on TRAIL-induced apoptosis. Further, AR inhibition also downregulates cell survival proteins (Bcl-xL, Bcl-2, survivin, XIAP, and FLIP) and upregulates the expression of proapoptotic proteins such as Bax and alters mitochondrial membrane potential, leading to cytochrome c release, caspases-3 activation, and PARP cleavage. We found that AR inhibition regulates AKT/PI3K-dependent activation of forkhead transcription factor FOXO3a. Knockdown of FOXO3a significantly (>80%) abolished AR inhibition-induced upregulation of DR5 and DR4 and apoptosis in colon cancer cells. Overall, our results show that fidarestat potentiates TRAIL-induced apoptosis through downregulation of cell survival proteins and upregulation of death receptors via activation of the AKT/FOXO3a pathway.
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Affiliation(s)
| | | | - Satish K Srivastava
- Corresponding Author: Satish K Srivastava, PhD , Telephone (409)-772-3926, Fax: 409-772-9679 and mailing address: #6.644 BSB, Department of Biochemistry and Molecular biology, University of Texas Medical Branch, Galveston, Texas -77555, USA
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17
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Abstract
The discovery of tumor necrosis factor (TNF) marked the beginning of one of the most fascinating journeys in modern biomedical research. For the moment, this journey has culminated in the development of drugs that inhibit TNF. TNF blockers have revolutionized the treatment of many chronic inflammatory diseases. Yet, the journey seems far from over. TNF is the founding member of a family of cytokines with crucial functions in cell death, inflammation, and cancer. Some of these factors, most prominently TNF, CD95L, and TRAIL, can induce cell death. The receptors that mediate this signal are therefore referred to as death receptors, even though they also activate other signals. Here I will take you on a journey into the discovery and study of death receptor-ligand systems and how this inspired new concepts in cancer therapy and our current understanding of the interplay between cell death and inflammation.
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Affiliation(s)
- Henning Walczak
- Centre for Cell Death, Cancer, and Inflammation (CCCI), UCL Cancer Institute, University College London, London WC1E 6BT, United Kingdom.
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18
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Li LC, Jayarama S, Pilli T, Qian L, Pacini F, Prabhakar BS. Down-modulation of expression, or dephosphorylation, of IG20/MADD in tumor necrosis factor-related apoptosis-inducing ligand-resistant thyroid cancer cells makes them susceptible to treatment with this ligand. Thyroid 2013; 23:70-8. [PMID: 22998497 PMCID: PMC3539253 DOI: 10.1089/thy.2012.0155] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND The IG20/MADD gene is overexpressed in thyroid cancer tissues and cell lines, and can contribute to tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) resistance. The ability of the MADD protein to resist TRAIL-induced apoptosis is dependent upon its phosphorylation by Akt. Interestingly, while TRAIL induces a significant reduction in the levels of phospho-Akt (pAkt) and phospho-MADD (pMADD) in TRAIL-sensitive cells, it fails to do so in TRAIL-resistant cells. In this study, we investigated if MADD phosphorylation by Akt was contributing to TRAIL resistance in thyroid cancer cells. METHODS We determined the susceptibility of different thyroid cancer cell lines to TRAIL-induced apoptosis by fluorescence-activated cell sorting (FACS) analysis. We tested for various TRAIL resistance factors by FACS analyses or for IG20/MADD expression by quantitative reverse transcription-polymerase chain reaction. We determined the levels of pAkt and pMADD upon TRAIL treatment in thyroid cancer cells by Western blotting. We tested if down-modulation of IG20/MADD gene expression using shRNA or phosphorylation using a dominant negative Akt (DN-Akt) or pretreatment with LY294002, a PI3 kinase inhibitor, could help overcome TRAIL resistance. RESULT BCPAP and TPC1 cells were susceptible, while KTC1 and FTC133 cells were resistant, to TRAIL-induced apoptosis. The differential susceptibility to TRAIL was not related to the levels of expression of death receptors, decoy receptors, or TRAIL. KTC1 and FTC133 cells showed higher levels of IG20/MADD expression relative to BCPAP and TPC1, and were rendered susceptible to TRAIL treatment upon IG20/MADD knockdown. Interestingly, upon TRAIL treatment, the pAkt and pMADD levels were reduced in TRAIL-sensitive BCPAP and TPC1 cells, while they remained unchanged in the resistant KTC1 and FTC133 cells. While expression of a constitutively active Akt in BCPAP and TPC1 cells rendered them resistant to TRAIL, pretreating KTC1 and FTC133 cells with LY294002 rendered them TRAIL-sensitive. Moreover, expression of a DN-Akt in KTC1 and FTC133 cells reduced the levels of pAkt and pMADD and sensitized them to TRAIL-induced apoptosis. CONCLUSION Our results show that pMADD is an important TRAIL resistance factor in certain thyroid cancer cells and suggest that down-modulation of either IG20/MADD expression or phosphorylation can render TRAIL-resistant thyroid cancer cells sensitive to TRAIL.
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Affiliation(s)
- Liang-Cheng Li
- Department of Microbiology and Immunology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Shankara Jayarama
- Department of Microbiology and Immunology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Tania Pilli
- Department of Microbiology and Immunology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
- Section of Endocrinology & Metabolism, Department of Internal Medicine, Endocrinology & Metabolism and Biochemistry, University of Siena, Siena, Italy
| | - Lixia Qian
- Department of Microbiology and Immunology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Furio Pacini
- Section of Endocrinology & Metabolism, Department of Internal Medicine, Endocrinology & Metabolism and Biochemistry, University of Siena, Siena, Italy
| | - Bellur S. Prabhakar
- Department of Microbiology and Immunology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
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Patron JP, Fendler A, Bild M, Jung U, Müller H, Arntzen MØ, Piso C, Stephan C, Thiede B, Mollenkopf HJ, Jung K, Kaufmann SHE, Schreiber J. MiR-133b targets antiapoptotic genes and enhances death receptor-induced apoptosis. PLoS One 2012; 7:e35345. [PMID: 22532850 PMCID: PMC3332114 DOI: 10.1371/journal.pone.0035345] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Accepted: 03/14/2012] [Indexed: 01/08/2023] Open
Abstract
Despite the importance of microRNAs (miRs) for regulation of the delicate balance between cell proliferation and death, evidence for their specific involvement during death receptor (DR)-mediated apoptosis is scarce. Transfection with miR-133b rendered resistant HeLa cells sensitive to tumor necrosis factor-alpha (TNFα)-induced cell death. Similarly, miR-133b caused exacerbated proapoptotic responses to TNF-related apoptosis-inducing ligand (TRAIL) or an activating antibody to Fas/CD95. Comprehensive analysis, encompassing global RNA or protein expression profiling performed by microarray experiments and pulsed stable isotope labeling with amino acids in cell culture (pSILAC), led to the discovery of the antiapoptotic protein Fas apoptosis inhibitory molecule (FAIM) as immediate miR-133b target. Moreover, miR-133b impaired the expression of the detoxifying protein glutathione-S-transferase pi (GSTP1). Expression of miR-133b in tumor specimens of prostate cancer patients was significantly downregulated in 75% of the cases, when compared with matched healthy tissue. Furthermore, introduction of synthetic miR-133b into an ex-vivo model of prostate cancer resulted in impaired proliferation and cellular metabolic activity. PC3 cells were also sensitized to apoptotic stimuli after transfection with miR-133b similar to HeLa cells. These data reveal the ability of a single miR to influence major apoptosis pathways, suggesting an essential role for this molecule during cellular transformation, tumorigenesis and tissue homeostasis.
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Affiliation(s)
- Juan P. Patron
- Department of Immunology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Annika Fendler
- Department of Urology, Charité, University Medicine, Berlin, Germany
- Berlin Institute for Urologic Research, Charitéplatz 1, Berlin, Germany
- Department of Biology, Chemistry and Pharmacy, Free University, Berlin, Germany
| | - Matthias Bild
- Department of Immunology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Ulrike Jung
- Department of Immunology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Henrik Müller
- Department of Immunology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Magnus Ø. Arntzen
- The Biotechnology Centre of Oslo, University of Oslo, Oslo, Norway
- Proteomics Core Facility, Oslo University Hospital-Rikshospitalet and University of Oslo, Oslo, Norway
- Proteomics Core Facility, Norwegian University of Life Sciences, Aas, Norway
| | - Chloe Piso
- Department of Immunology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Carsten Stephan
- Department of Urology, Charité, University Medicine, Berlin, Germany
| | - Bernd Thiede
- The Biotechnology Centre of Oslo, University of Oslo, Oslo, Norway
| | | | - Klaus Jung
- Berlin Institute for Urologic Research, Charitéplatz 1, Berlin, Germany
| | - Stefan H. E. Kaufmann
- Department of Immunology, Max Planck Institute for Infection Biology, Berlin, Germany
- * E-mail:
| | - Jörg Schreiber
- Department of Immunology, Max Planck Institute for Infection Biology, Berlin, Germany
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20
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Wu B, Jin M, Gong J, Du X, Bai Z. Dynamic evolution of CIKS (TRAF3IP2/Act1) in metazoans. Dev Comp Immunol 2011; 35:1186-1192. [PMID: 21527283 DOI: 10.1016/j.dci.2011.03.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Revised: 03/07/2011] [Accepted: 03/09/2011] [Indexed: 05/30/2023]
Abstract
CIKS (TRAF3IP2/Act1) is important for inflammatory responses and autoimmunity control through its dual functions in CD40L/BAFF and IL17 signaling in mammalians. In this study, we performed comparative and evolutionary analyses of CIKSs from metazoans. Although nematode (Caenorabditis elegans) and sea urchin (Strongylocentrotus purpuratus) have IL17 and IL17 receptors, we found no CIKS in their genomes. The ancient CIKS-like (CIKSL) genes from the invertebrates lottia (Lottia gigantea) and amphioxus (Branchiostoma floridae) have an additional DEATH domain compared with other CIKSLs/CIKSs. Our data suggest that the ancient CIKSL evolved into early chordate CIKS possibly through gene tandem duplication and gene fission. Based on phylogenetic and synteny analyses, vertebrate CIKS genes are divided into two groups, one of which is orthologous to human CIKS and the other is paralogous. Expression analysis indicated that cephalochordata amphioxus IL17 together with CIKS might play an ancient and conserved role in host defense against bacterial infections. During the evolutionary process, the CIKS genes have obtained more and more functions through cooperation with other genes.
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Affiliation(s)
- Baojun Wu
- Laboratory of Developmental Immunology, School of Life Sciences, Shandong, University, Jinan 250100, China
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21
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Carlisi D, D'Anneo A, Angileri L, Lauricella M, Emanuele S, Santulli A, Vento R, Tesoriere G. Parthenolide sensitizes hepatocellular carcinoma cells to TRAIL by inducing the expression of death receptors through inhibition of STAT3 activation. J Cell Physiol 2011; 226:1632-41. [PMID: 21413021 DOI: 10.1002/jcp.22494] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This article shows that HepG2, Hep3B, and SK-Hep1 cells, three lines of human hepatocellular carcinoma (HCC) cells, are resistant to apoptosis induced by tumor necrosis factor-related apoptosis-inducing ligand (TRAIL). Parthenolide, a sesquiterpene lactone found in European feverfew, has been shown to exert both anti-inflammatory and anti-cancer activities. This article demonstrates that co-treatment with parthenolide and TRAIL-induced apoptosis with synergistic interactions in the three lines of HCC cells. In order to explain these effects we ascertained that parthenolide increased either at protein or mRNA level the total content of death receptors TRAIL-R1 and -R2 as well as their surface expression. These effects were found in the three cell lines in the case of TRAIL-R2, while for TRAIL-R1 they were observed in HepG2 and SK-Hep1 cells, but not in Hep3B cells. We suggest that the effects of parthenolide on death receptors depend on the decrease in the level of phosphorylated and active forms of STAT proteins, an event which could be a consequence of the inhibitory effect exerted by parthenolide on the activation of JAK proteins. In agreement with this hypothesis treatment with STAT3 siRNA increased in HCC cells the effect of parthenolide on the expression of death receptors. Sensitization by parthenolide to TRAIL stimulated in the three cell lines the extrinsic mechanism of apoptosis with the activation of both caspases 8 and 3, whereas mitochondria were not involved in the process. Our results suggest that co-treatment with parthenolide and TRAIL could represent a new important therapeutic strategy for hepatic tumors.
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Affiliation(s)
- Daniela Carlisi
- Dipartimento di Biomedicina Sperimentale e Neuroscienze Cliniche, Sezione di Scienze Biochimiche, Università di Palermo, Policlinico, Palermo, Italy
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22
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Casado-Zapico S, Martín V, García-Santos G, Rodríguez-Blanco J, Sánchez-Sánchez AM, Luño E, Suárez C, García-Pedrero JM, Menendez ST, Antolín I, Rodriguez C. Regulation of the expression of death receptors and their ligands by melatonin in haematological cancer cell lines and in leukaemia cells from patients. J Pineal Res 2011; 50:345-55. [PMID: 21392090 DOI: 10.1111/j.1600-079x.2010.00850.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Incorporation of new therapeutic agents remains as a major challenge for treatment of patients with malignant haematological disorders. Melatonin is an indolamine without relevant side effects. It has been shown previously to exhibit synergism with several chemotherapeutic drugs in Ewing sarcoma cells by potentiating the extrinsic pathway of apoptosis. It also sensitizes human glioma cells against TRAIL by increasing DR5 expression. Here, we report the induction of cell death by melatonin in several human malignant haematological cell lines through the activation of the extrinsic pathway of apoptosis. Such activation was mediated by the increase in the expression of the death receptors Fas, DR4 and DR5 and their ligands Fas L and TRAIL, with a remarkable rise in the expression of Fas and Fas L. The cytotoxic effect and the increase in Fas and Fas L were dependent on Akt activation. Results were corroborated in blasts from bone marrow and peripheral blood of acute myeloid leukaemia patients, where melatonin induced cell death and increased both Fas and Fas L expressions. We conclude that melatonin may be considered as a potential antileukaemic agent and its therapeutic use, either alone or in combination with current chemotherapeutic drugs, should be taken into consideration for further research.
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Affiliation(s)
- Sara Casado-Zapico
- Departamento de Morfología y Biología Celular, Facultad de Medicina, Universidad de Oviedo, Oviedo, Spain
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23
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Kikuchi H, Ohtsuki T, Koyano T, Kowithayakorn T, Sakai T, Ishibashi M. Activity of mangosteen xanthones and teleocidin a-2 in death receptor expression enhancement and tumor necrosis factor related apoptosis-inducing ligand assays. J Nat Prod 2010; 73:452-455. [PMID: 19788289 DOI: 10.1021/np900404e] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A screening study using a luciferase assay to identify natural products that enhance death receptor 5 (DR5) expression was carried out, and bioassay-guided fractionation of two organisms, the pericarp of Garcinia mangostana (mangosteen) and actinomycete CKK609 strain, led to the isolation of eight xanthone derivatives (1-8) and teleocidin A-2 (9). Among them, compounds 1, 2, and 5, isolated from G. mangostana, and 9, from the actinomycete, showed potent DR5 promoter activity. Furthermore, we revealed that combined treatment with gartanin (5) and tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) showed a potentiation effect in sensitizing TRAIL-resistant human gastric adenocarcinoma (AGS) cells. Thus, the present results suggested that 5 has the ability to overcome TRAIL resistance via the up-regulation of DR5 and may be an effective sensitizer of TRAIL-resistant cells.
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Affiliation(s)
- Hiroyuki Kikuchi
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 263-8522, Japan
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24
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Lin CH, Shih WL, Lin FL, Hsieh YC, Kuo YR, Liao MH, Liu HJ. Bovine ephemeral fever virus-induced apoptosis requires virus gene expression and activation of Fas and mitochondrial signaling pathway. Apoptosis 2009; 14:864-77. [PMID: 19521777 DOI: 10.1007/s10495-009-0371-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Although induction of apoptosis by bovine ephemeral fever virus (BEFV) in several cell lines has been previously demonstrated by our laboratory, less information is available on the process of BEFV-induced apoptosis in terms of cellular pathways and specific proteins involved. In order to determine the step in viral life cycle at which apoptosis of infected cells is triggered, chemical and physical agents were used to block viral infection. Treatment of BHK-21 infected cells with ammonium chloride (NH4Cl) or cells infected with UV-inactivated BEFV was seen to abrogate virus apoptosis induction, suggesting that virus uncoating and gene expression are required for the induction of apoptosis. Using soluble death receptors Fc:Fas chimera to block Fas signaling, BEFV-induced apoptosis was inhibited in cells. BEFV infection of BHK-21 cells results in the Fas-dependent activation of caspase 8 and cleavage of Bid. This initiated the dissipation of the membrane potential and the release of cytochrome c but not AIF or Smac/DIABLO from mitochondrial into cytoplasm leading to activation of caspase 9. Combined activation of the death receptor and mitochondrial pathways results in activation of the downstream effecter caspase 3 leading to cleavage of PARP. Fas-mediated BEFV-induced apoptosis could be suppressed by the overexpression of Bcl-2 or by treatment with caspase inhibitors and soluble death receptors Fc:Fas chimera. Taken together, this study provided first evidence demonstrating that BEFV-induced apoptosis requires viral gene expression and occurs through the activation of Fas and mitochondrion-mediated caspase-dependent pathways.
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Affiliation(s)
- Chi-Hung Lin
- Department of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan
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25
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Yodkeeree S, Sung B, Limtrakul P, Aggarwal BB. Zerumbone enhances TRAIL-induced apoptosis through the induction of death receptors in human colon cancer cells: Evidence for an essential role of reactive oxygen species. Cancer Res 2009; 69:6581-9. [PMID: 19654295 PMCID: PMC2741416 DOI: 10.1158/0008-5472.can-09-1161] [Citation(s) in RCA: 143] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Identification of the active component and mechanisms of action of traditional medicines is highly desirable. We investigated whether zerumbone, a sesquiterpene from tropical ginger, can enhance the anticancer effects of tumor necrosis factor-related apoptosis-inducing ligand (TRAIL). We found that zerumbone potentiated TRAIL-induced apoptosis in human HCT116 colon cancer cells and that this correlated with the up-regulation of TRAIL death receptor (DR) 4 and DR5. Induction of DRs occurred at the transcriptional level, and this induction was not cell-type specific, as its expression was also up-regulated in prostate, kidney, breast, and pancreatic cancer cell lines. Deletion of DR5 or DR4 by small interfering RNA significantly reduced the apoptosis induced by TRAIL and zerumbone. In addition to up-regulating DRs, zerumbone also significantly down-regulated the expression of cFLIP but not that of other antiapoptotic proteins. The induction of both DRs by zerumbone was abolished by glutathione and N-acetylcysteine (NAC), and this correlated with decreased TRAIL-induced apoptosis, suggesting a critical role of reactive oxygen species. Inhibition of extracellular signal-regulated kinase 1/2 and p38 mitogen-activated protein kinase but not of Jun NH(2)-terminal kinase abolished the effect of zerumbone on DR induction. Zerumbone also induced the p53 tumor suppressor gene but was found to be optional for DR induction or for enhancement of TRAIL-induced apoptosis. Both bax and p21, however, were required for zerumbone to stimulate TRAIL-induced apoptosis. Overall, our results show that zerumbone can potentiate TRAIL-induced apoptosis through the reactive oxygen species-mediated activation of extracellular signal-regulated kinase 1/2 and p38 mitogen-activated protein kinase leading to DR4 and DR5 induction and resulting in enhancement of the anticancer effects of TRAIL.
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Affiliation(s)
- Supachai Yodkeeree
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Bokyung Sung
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - Pornngarm Limtrakul
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Bharat B. Aggarwal
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas M. D. Anderson Cancer Center, Houston, Texas
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26
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Zucchi F, da Silva IDCG, Ribalta JCL, de Souza NCN, Speck NMDG, Girão MJBC, Brenna SMF, Syrjänen KJ. Fas/CD95 promoter polymorphism gene and its relationship with cervical carcinoma. EUR J GYNAECOL ONCOL 2009; 30:142-144. [PMID: 19480241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVE Apoptosis is an important fail-safe control in human papillomavirus (HPV)-associated carcinogenesis. We tested the hypothesis that the A/G polymorphism at -670 of Fas promoter is associated with an increased risk for cervical cancer, using a matched case-control setting. METHODS The material in this case-control study consisted of 91 patients with cervical carcinoma and 176 population-based control subjects, recruited between 2002 and 2004; all the ethnic Brazilian women had histologically confirmed cervical carcinoma. Control subjects were age-matched; healthy women who were selected following a negative cervical cytology and normal colposcopy. Fas genotyping was performed using a PCR-RFLP technique. RESULTS No significant difference existed in the distribution of the Fas polymorphisms (wild, heterozygous, mutant) between the cases and controls. The heterozygous (OR: 4.85, 95% CI: 1.1-22.6) genotypes among the younger (< 48 yrs) cancer patients were almost 5-fold increased, as compared with the wild type. No such increase was observed among the patients older than 48 years. CONCLUSIONS Our data suggest that 670A/G polymorphism in the promoter region of the death receptor Fas is associated with an increased risk of cervical cancer among Brazilian women under 48 years. The mechanisms would be the inhibition of apoptosis by Fas -670G allele-mediated down-regulation of Fas transcription.
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Affiliation(s)
- F Zucchi
- Department of Gynecology, Federal University of São Paulo, Paulista School of Medicina, São Paulo, Brazil.
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27
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Gröbner S, Adkins I, Schulz S, Richter K, Borgmann S, Wesselborg S, Ruckdeschel K, Micheau O, Autenrieth IB. Catalytically active Yersinia outer protein P induces cleavage of RIP and caspase-8 at the level of the DISC independently of death receptors in dendritic cells. Apoptosis 2008; 12:1813-25. [PMID: 17624595 DOI: 10.1007/s10495-007-0100-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Yersinia outer protein P (YopP) is injected by Y. enterocolitica into host cells thereby inducing apoptotic and necrosis-like cell death in dendritic cells (DC). Here we show the pathways involved in DC death caused by the catalytic activity of YopP. Infection with Yersinia enterocolitica, translocating catalytically active YopP into DC, triggered procaspase-8 cleavage and c-FLIPL degradation. YopP-dependent caspase-8 activation was, however, not mediated by tumor necrosis factor (TNF) receptor family members since the expression of both CD95/Fas/APO-1 and TRAIL-R2 on DC was low, and DC were resistant to apoptosis induced by agonistic anti-CD95 antibodies or TNF-related apoptosis-inducing ligand (TRAIL). Moreover, DC from TNF-Rp55-/- mice were not protected against YopP-induced cell death demonstrating that TNF-R1 is also not involved in this process. Activation of caspase-8 was further investigated by coimmunoprecitation of FADD from Yersinia-infected DC. We found that both cleaved caspase-8 and receptor interacting protein 1 (RIP1) were associated with the Fas-associated death domain (FADD) indicating the formation of an atypical death-inducing signaling complex (DISC). Furthermore, degradation of RIP mediated by the Hsp90 inhibitor geldanamycin significantly impaired YopP-induced cell death. Altogether our findings indicate that Yersinia-induced DC death is independent of death domain containing receptors, but mediated by RIP and caspase-8 at the level of DISC.
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MESH Headings
- Animals
- Bacterial Proteins/metabolism
- Benzoquinones/metabolism
- CASP8 and FADD-Like Apoptosis Regulating Protein/metabolism
- Caspase 8/metabolism
- Cell Death/physiology
- Cells, Cultured
- Death Domain Receptor Signaling Adaptor Proteins/metabolism
- Dendritic Cells/cytology
- Dendritic Cells/metabolism
- Enzyme Activation
- Enzyme Inhibitors/metabolism
- Fas-Associated Death Domain Protein/metabolism
- Humans
- Lactams, Macrocyclic/metabolism
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Knockout
- Receptor-Interacting Protein Serine-Threonine Kinases/metabolism
- Receptors, Death Domain/genetics
- Receptors, Death Domain/metabolism
- Receptors, TNF-Related Apoptosis-Inducing Ligand/metabolism
- Receptors, Tumor Necrosis Factor, Type I/genetics
- Receptors, Tumor Necrosis Factor, Type I/metabolism
- Signal Transduction/physiology
- Yersinia enterocolitica/metabolism
- fas Receptor/metabolism
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Affiliation(s)
- Sabine Gröbner
- Institute of Medical Microbiology and Hygiene, University of Tübingen, Elfriede-Aulhorn-Str., 6, 72076, Tuebingen, Germany.
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28
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Dzimiri N, Afrane B, Canver CC. Preferential existence of death-inducing proteins in the human cardiomyopathic left ventricle. J Surg Res 2007; 142:227-32. [PMID: 17706969 DOI: 10.1016/j.jss.2006.11.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2006] [Revised: 11/15/2006] [Accepted: 11/16/2006] [Indexed: 10/22/2022]
Abstract
INTRODUCTION Idiopathic or acquired dilated cardiomyopathy (DCM) is a leading health threat resulting in considerable mortality and serious long-term disability with a substantial economic healthcare expenditure. The purpose of this study was to investigate the modulation of apoptotic signaling genes in human cardiomyopathy. METHODS Cardiac tissue was obtained from six heart transplant recipients (age = 43 +/- 7 y) with DCM. Equivalent control specimens were taken from six healthy heart donors (age = 33 +/- 4 y). The mRNA expression of death-inducing proteins, the death (DRs) and decoy receptors (DcRs), in the four cardiac chambers was quantified using real time polymerase chain reaction LightCycler (Roche Diagnostics GmbH, Mannheim, Germany). Immunodetectable receptor protein expression was quantified densitometrically. Data were analyzed by analysis of variance and unpaired Student's t-test. RESULTS In DCM tissues, DR1 mRNA was elevated by 42.7% (P < 0.01) in the left ventricle (LV) and 56.4% (P < 0.001) in the left atrium (LA), while DR2 increased by 112.5% (P < 0.00001) in LV and 45.8% (P < 0.05) in LA. Increase in DR4 was 29.6% (P < 0.01) in LV, 82.5% (P < 0.01) in the right ventricle (RV), 210.8% (P < 0.01) in LA, and 99.1% (P < 0.01) in the right atrium (RA). DR5 was elevated by 66.7% (P < 0.01) in LV, 181.8% (P < 0.005) in LA, and 90.2% (P < 0.05) in RA. DcR1 decreased by 30.8% in LV, 44% (P < 0.05) in LA, and 12.5% in RA; DcR3 by 67.1% (P < 0.0001) in LV, 82.4% (P < 0.0001) in RV, 85.1% (P < 0.0001) in LA, and 84.6% (P < 0.0001) in RA. The trends in mRNA expression were comparable to the changes in protein expression. CONCLUSIONS Left heart-sided increase of death-inducing proteins in human cardiomyopathy is suggestive of their potential modulatory roles in death-related signaling in the pathogenesis of end-stage myocardial failure.
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Affiliation(s)
- Nduna Dzimiri
- Department of Genetics, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
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29
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Benvenuto F, Ferrari S, Gerdoni E, Gualandi F, Frassoni F, Pistoia V, Mancardi G, Uccelli A. Human Mesenchymal Stem Cells Promote Survival of T Cells in a Quiescent State. Stem Cells 2007; 25:1753-60. [PMID: 17395776 DOI: 10.1634/stemcells.2007-0068] [Citation(s) in RCA: 176] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Mesenchymal stem cells (MSC) are part of the bone marrow that provides signals supporting survival and growth of bystander hematopoietic stem cells (HSC). MSC modulate also the immune response, as they inhibit proliferation of lymphocytes. In order to investigate whether MSC can support survival of T cells, we investigated MSC capacity of rescuing T lymphocytes from cell death induced by different mechanisms. We observed that MSC prolong survival of unstimulated T cells and apoptosis-prone thymocytes cultured under starving conditions. MSC rescued T cells from activation induced cell death (AICD) by downregulation of Fas receptor and Fas ligand on T cell surface and inhibition of endogenous proteases involved in cell death. MSC dampened also Fas receptor mediated apoptosis of CD95 expressing Jurkat leukemic T cells. In contrast, rescue from AICD was not associated with a significant change of Bcl-2, an inhibitor of apoptosis induced by cell stress. Accordingly, MSC exhibited a minimal capacity of rescuing Jurkat cells from chemically induced apoptosis, a process disrupting the mitochondrial membrane potential regulated by Bcl-2. These results suggest that MSC interfere with the Fas receptor regulated process of programmed cell death. Overall, MSC can inhibit proliferation of activated T cells while supporting their survival in a quiescent state, providing a model of their activity inside the HSC niche. Disclosure of potential conflicts of interest is found at the end of this article.
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Affiliation(s)
- Federica Benvenuto
- Neuroimmunology Unit, Department of Neurosciences, Ophthalmology and Genetics, University of Genoa, Via De Toni 5, 16132 Genoa, Italy
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Abstract
The Death Domain Fold superfamily of evolutionarily conserved protein-protein interaction domains consists of 4 subfamilies: the death domain, the death effector domain, the caspase recruitment domain, and the PYRIN domain. Interaction of Death Domain Fold containing proteins modulates the activity of several downstream effectors, such as caspases and transcription factors. Recent studies provide evidence for not only homotypic-, but also heterotypic interactions among different sub-families, and even unconventional non-death domain fold interactions. As the number of potential protein associations among Death Domain Fold containing proteins expands and their influence on cellular responses increases, a challenging field for new investigations opens up. This review will focus on PYRIN domain-containing proteins and discuss the recent advances that provide strong evidence that PYRIN domain-mediated signal transduction has broad implications on cellular functions, including innate immunity, inflammation, differentiation, apoptosis, and cancer.
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Affiliation(s)
- Christian Stehlik
- Mary Babb Randolph Cancer Center and Department of Microbiology, Immunology and Cell Biology, West Virginia University, Morgantown, WV 26506-9300, USA.
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31
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Sakamaki K, Nozaki M, Kominami K, Satou Y. The evolutionary conservation of the core components necessary for the extrinsic apoptotic signaling pathway, in Medaka fish. BMC Genomics 2007; 8:141. [PMID: 17540041 PMCID: PMC1903365 DOI: 10.1186/1471-2164-8-141] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2007] [Accepted: 06/01/2007] [Indexed: 12/24/2022] Open
Abstract
Background Death receptors on the cell surface and the interacting cytosolic molecules, adaptors and initiator caspases, are essential as core components of the extrinsic apoptotic signaling pathway. While the apoptotic machinery governing the extrinsic signaling pathway is well characterized in mammals, it is not fully understood in fish. Results We identified and characterized orthologs of mammalian Fas, FADD and caspase-8 that correspond to the death receptor, adaptor and initiator caspase, from the Medaka fish (Oryzias latipes). Medaka Fas, caspase-8 and FADD exhibited protein structures similar to that of their mammalian counterparts, containing a death domain (DD), a death effector domain (DED) or both. Functional analyses indicated that these molecules possess killing activity in mammalian cell lines upon overexpression or following activation by apoptotic stimuli, suggesting similar pro-apoptotic functions in the extrinsic pathway as those in mammals. Genomic sequence analysis revealed that the Medaka fas (tnfrsf6), fadd and caspase-8 (casp8) genes are organized in a similar genomic structure as the mammalian genes. Database search and phylogenetic analysis revealed that the fas gene, but not the fadd and casp8 genes, appear to be present only in vertebrates. Conclusion Our results indicate that the core components necessary for the extrinsic apoptotic pathway are evolutionarily conserved in function and structure across vertebrate species. Based on these results, we presume the mechanism of apoptosis induction via death receptors was evolutionarily established during the appearance of vertebrates.
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MESH Headings
- Amino Acid Sequence
- Animals
- Apoptosis
- Base Sequence
- Caspase 8/chemistry
- Caspase 8/genetics
- Caspase 8/metabolism
- Cells, Cultured
- DNA, Complementary
- Databases, Genetic
- Embryo, Mammalian
- Embryo, Nonmammalian
- Evolution, Molecular
- Exons
- Expressed Sequence Tags
- Fas Ligand Protein/chemistry
- Fas Ligand Protein/genetics
- Fas Ligand Protein/metabolism
- Fas-Associated Death Domain Protein/chemistry
- Fas-Associated Death Domain Protein/genetics
- Fas-Associated Death Domain Protein/metabolism
- Fibroblasts/cytology
- Fibroblasts/metabolism
- Fluorescent Antibody Technique, Indirect
- Genome
- HeLa Cells
- Humans
- Immunohistochemistry
- Mice
- Molecular Sequence Data
- NIH 3T3 Cells
- Open Reading Frames
- Oryzias/genetics
- Oryzias/metabolism
- Phylogeny
- Protein Structure, Tertiary
- Receptors, Death Domain/chemistry
- Receptors, Death Domain/genetics
- Receptors, Death Domain/metabolism
- Sequence Analysis, DNA
- Sequence Homology, Amino Acid
- Signal Transduction
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Affiliation(s)
- Kazuhiro Sakamaki
- Department of Animal Development and Physiology, Graduate School of Biostudies, Kyoto University, Kyoto 606-8501, Japan
| | - Masami Nozaki
- Department of Cell Biology, Research Institute for Microbial Diseases, Osaka University, Suita 565-0871, Japan
| | - Katsuya Kominami
- Department of Animal Development and Physiology, Graduate School of Biostudies, Kyoto University, Kyoto 606-8501, Japan
- Present address: Nihon Schering Research Center, Kobe 650-0047, Japan
| | - Yutaka Satou
- Department of Zoology, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
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Abstract
Recent complicated advances towards the blueprinting of the altered molecular networks that lie behind cancer development have paved the way for targeted therapy in cancer. This directed a significant part of the research community to the development of specialized targeted agents, many of which are already available or in clinical trials. The prospect of patient-tailored therapeutic strategies, although very close to becoming a reality also raises the level of complexity of the therapeutic approach. This review summarizes the functions, in vivo expression patterns and aberrations of factors presently targeted or representing potential targets by therapeutic agents, focusing on those implicated in death receptor-induced apoptosis. The authors overview the regulation of these factors and death receptor-induced apoptosis by classical oncogenes (e.g., RAS, MYC, HER2) and their effectors/regulators, most of which are also being targeted. In addition, the importance of orthologic systemic approaches in future patient-tailored therapies are discussed.
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Affiliation(s)
- Konstantinos Drosopoulos
- Laboratory of Signal Mediated Gene Expression, Institute of Biological Research and Biotechnology, National Hellenic Research Foundation, Athens, Greece
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Abstract
Tumor necrosis factor-alpha (TNF-alpha) is elevated in the serum as a result of aging and it promotes pro-apoptotic signaling upon binding to the type I TNF receptor. It is not known if activation of this apoptotic pathway contributes to the well-documented age-associated decline in muscle mass (i.e. sarcopenia). We tested the hypothesis that skeletal muscles from aged rodents would exhibit elevations in markers involved in the extrinsic apoptotic pathway when compared to muscles from young adult rodents, thereby contributing to an increased incidence of nuclear apoptosis in these muscles. The plantaris (fast) and soleus (slow) muscles were studied in young adult (5-7 mo, n=8) and aged (33 mo, n=8) Fischer(344) x Brown Norway rats. Muscles from aged rats were significantly smaller while exhibiting a greater incidence of apoptosis. Furthermore, muscles from aged rats had higher type I TNF receptor and Fas associated death domain protein (FADD) mRNA, protein contents for FADD, BCL-2 Interacting Domain (Bid), FLICE-inhibitory protein (FLIP), and enzymatic activities of caspase-8 and caspase-3 than muscles from young adult rats. Significant correlations were observed in the plantaris muscle between caspase activity and muscle weight and the apoptotic index, while similar relationships were not found in the soleus. These data demonstrate that pro-apoptotic signaling downstream of the TNF receptor is active in aged muscles. Furthermore, our data extend the previous demonstration that type II fibers are preferentially affected by aging and support the hypothesis that type II fiber containing skeletal muscles may be more susceptible to muscle mass loses via the extrinsic apoptotic pathway.
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Affiliation(s)
- Emidio E Pistilli
- Laboratory of Muscle Biology and Sarcopenia, Division of Exercise Physiology, West Virginia University School of Medicine, Morgantown, West Virginia 26506, USA
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Deng WG, Nishizaki M, Fang B, Roth JA, Ji L. Induction of apoptosis by tumor suppressor FHIT via death receptor signaling pathway in human lung cancer cells. Biochem Biophys Res Commun 2007; 355:993-9. [PMID: 17328863 PMCID: PMC1934611 DOI: 10.1016/j.bbrc.2007.02.067] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2007] [Accepted: 02/13/2007] [Indexed: 11/21/2022]
Abstract
FHIT is a novel tumor suppressor gene located at human chromosome 3p14.2. Restoration of wild-type FHIT in 3p14.2-deficient human lung cancer cells inhibits cell growth and induces apoptosis. In this study, we analyzed potential upstream/downstream molecular targets of the FHIT protein and found that FHIT specifically targeted and regulated death receptor (DR) genes in human non-small-cell lung cancer (NSCLC) cells. Exogenous expression of FHIT by a recombinant adenoviral vector (Ad)-mediated gene transfer upregulated expression of DR genes. Treatment with a recombinant TRAIL protein, a DR-specific ligand, in Ad-FHIT-transduced NSCLC cells considerably enhanced FHIT-induced apoptosis, further demonstrating the involvement of DRs in FHIT-induced apoptosis. Moreover, we also found that FHIT targeted downstream of the DR-mediated signaling pathway. FHIT overexpression disrupted mitochondrial membrane integrity and activated multiple pro-apoptotic proteins in NSCLC cell. These results suggest that FHIT induces apoptosis through a sequential activation of DR-mediated pro-apoptotic signaling pathways in human NSCLC cells.
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Affiliation(s)
- Wu-Guo Deng
- Department of Thoracic and Cardiovascular Surgery, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
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Wang H, Yadav JS. Global gene expression changes underlying Stachybotrys chartarum toxin-induced apoptosis in murine alveolar macrophages: Evidence of multiple signal transduction pathways. Apoptosis 2006; 12:535-48. [PMID: 17186382 DOI: 10.1007/s10495-006-0008-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2006] [Accepted: 10/13/2006] [Indexed: 10/23/2022]
Abstract
The overall mechanism(s) underlying macrophage apoptosis caused by the toxins of the indoor mold Stachybotrys chartarum (SC) are not yet understood. In this direction, we report a microarray-based global gene expression profiling on the murine alveolar macrophage cell line (MH-S) treated with SC toxins for short (2 h) and long (24 h) periods, coinciding with the pre-apoptotic (<3 h) and progressed apoptotic stages of the treated cells, respectively. Microarray results on differential expression were validated by real-time RT-PCR analysis using representative gene targets. The toxin-regulated genes corresponded to multiple cellular processes, including cell growth, proliferation and death, inflammatory/immune response, genotoxic stress and oxidative stress, and to the underlying multiple signal transduction pathways involving MAPK-, NF-kB-, TNF-, and p53-mediated signaling. Transcription factor NF-kB showed dynamic temporal changes, characterized by an initial activation and a subsequent inhibition. Up-regulation of a battery of DNA damage-responsive and DNA repair genes in the early stage of the treatment suggested a possible role of genotoxic stress in the initiation of apoptosis. Simultaneous expression changes in both pro-survival genes and pro-apoptotic genes indicated the role of a critical balance between the two processes in SC toxin-induced apoptosis. Taken together, the results imply that multiple signaling pathways underlie the SC toxin-induced apoptosis in alveolar macrophages.
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Affiliation(s)
- Huiyan Wang
- Department of Environmental Health, Division of Environmental Genetics and Molecular Toxicology, University of Cincinnati Medical Center, Cincinnati, OH 45267, USA
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Tuma RS. Testing ways to trigger cell death from the outside. J Natl Cancer Inst 2006; 98:1684-5. [PMID: 17148769 DOI: 10.1093/jnci/djj511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sandu C, Morisawa G, Wegorzewska I, Huang T, Arechiga AF, Hill JM, Kim T, Walsh CM, Werner MH. FADD self-association is required for stable interaction with an activated death receptor. Cell Death Differ 2006; 13:2052-61. [PMID: 16710361 DOI: 10.1038/sj.cdd.4401966] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Receptor-mediated programmed cell death proceeds through an activated receptor to which the death adaptor FADD and the initiator procaspases 8 and/or 10 are recruited following receptor stimulation. The adaptor FADD is responsible for both receptor binding and recruitment of the procaspases into the death-inducing signaling complex. Biochemical dissection of the FADD death effector domain and functional replacement with a coiled-coil motif demonstrates that there is an obligatory FADD self-association via the DED during assembly of the death-inducing signaling complex. Using engineered oligomerization motifs with defined stoichiometries, the requirement for FADD self-association through the DED can be separated from the caspase-recruitment function of the domain. Disruption of FADD self-association precludes formation of a competent signaling complex. On this basis, we propose an alternative architecture for the FADD signaling complex in which FADD acts as a molecular bridge to stitch together an array of activated death receptors.
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Affiliation(s)
- C Sandu
- Laboratory of Molecular Biophysics, The Rockefeller University, New York, NY 10021, USA
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