51
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Zhang B, van Roosmalen IAM, Reis CR, Setroikromo R, Quax WJ. Death receptor 5 is activated by fucosylation in colon cancer cells. FEBS J 2019; 286:555-571. [PMID: 30589515 PMCID: PMC6849799 DOI: 10.1111/febs.14742] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 11/01/2018] [Accepted: 12/24/2018] [Indexed: 12/24/2022]
Abstract
The remarkable pro‐apoptotic properties of tumour necrosis factor (TNF)‐related apoptosis‐inducing ligand (TRAIL) have led to considerable interest in this protein as a potential anticancer therapeutic. However, TRAIL is largely ineffective in inducing apoptosis in certain cancer cells, and the mechanisms underlying this selectivity are unknown. In colon adenocarcinomas, posttranslational modifications including O‐ and N‐ glycosylation of death receptors were found to correlate with TRAIL‐induced apoptosis. Additionally, mRNA levels of fucosyltransferase 3 (FUT3) and 6 (FUT6) were found to be high in the TRAIL‐sensitive colon adenocarcinoma cell line COLO 205. In this study, we use agonistic receptor‐specific TRAIL variants to dissect the contribution of FUT3 and FUT6‐mediated fucosylation to TRAIL‐induced apoptosis via its two death receptors, DR4 and DR5. Triggering of apoptosis by TRAIL revealed that the low FUT3/6‐expressing cells DLD‐1 and HCT 116 are insensitive to DR5 but not to DR4‐mediated apoptosis. By contrast, efficient apoptosis is mediated via both receptors in high FUT3/6‐expressing COLO 205 cells. The reconstitution of FUT3/6 expression in DR5‐resistant cells completely restored TRAIL sensitivity via this receptor, while only marginally enhancing apoptosis via DR4 at lower TRAIL concentrations. Interestingly, we observed that induction of the salvage pathway by external administration of l‐fucose restores DR5‐mediated apoptosis in both DLD‐1 and HCT 116 cells. Finally, we show that fucosylation influences the ligand‐independent receptor association that leads to increased death inducing signalling complex (DISC) formation and caspase‐8 activation. Taken together, these results provide evidence for the differential impact of fucosylation on signalling via DR4 or DR5. These findings provide novel opportunities to enhance TRAIL sensitivity in colon adenocarcinoma cells that are highly resistant to DR5‐mediated apoptosis.
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Affiliation(s)
- Baojie Zhang
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, The Netherlands
| | - Ingrid A M van Roosmalen
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, The Netherlands
| | - Carlos R Reis
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, The Netherlands
| | - Rita Setroikromo
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, The Netherlands
| | - Wim J Quax
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, The Netherlands
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52
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Brennan K, Lyons C, Fernandes P, Doyle S, Houston A, Brint E. Engagement of Fas differentially regulates the production of LPS-induced proinflammatory cytokines and type I interferons. FEBS J 2018; 286:523-535. [PMID: 30536547 DOI: 10.1111/febs.14727] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 10/22/2018] [Accepted: 12/07/2018] [Indexed: 12/28/2022]
Abstract
Fas (CD95) signalling is best known for its role in apoptosis, however, recent reports have shown it to be involved in other cellular responses as well, including inflammation. Fas and its adaptor protein FADD are known to negatively regulate LPS-induced proinflammatory responses, but their role in LPS-induced type I interferon production is unknown. Here, we demonstrate that Fas engagement on macrophages, using an agonistic Fas antibody CH11, augments LPS-induced NF-κB responses, causing increased production of TNFα, IL-8, IL-6 and IL-12. Conversely, costimulation with both LPS and CH11 causes a significant reduction in the level of interferon-beta (IFNβ) production. This differential effect involves the Fas adaptor FADD because while LPS-induced IL-6 production increased in FADD-/- murine embryonic fibroblasts, LPS-induced IFNβ production was significantly reduced in these cells. Overexpression of a dominant negative form of FADD (FADD-DD) inhibits LPS-induced IFNβ luciferase but not LPS-induced NF-κB luciferase. In contrast, overexpression of full-length FADD inhibited LPS-induced NF-κB luciferase activation but was seen to augment LPS-induced IFNβ luciferase. Moreover, FADD-DD inhibits TRIF-, TRAM-, IKKε-, TBK-1- and TRAF3-induced IFNβ luciferase production, with coimmunoprecipitation experiments demonstrating an interaction between FADD and TRIF. These data identify FADD as a novel component of the noncanonical Toll-like receptor 4/IFNβ signalling pathway and demonstrate that both Fas and its adaptor FADD can differentially regulate the production of LPS-induced proinflammatory cytokines and type I interferons.
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Affiliation(s)
- Kiva Brennan
- Department of Clinical Medicine School of Medicine, Trinity College Dublin, Ireland.,The National Children's Research Centre, Dublin, Ireland
| | | | | | - Sarah Doyle
- Department of Clinical Medicine School of Medicine, Trinity College Dublin, Ireland.,The National Children's Research Centre, Dublin, Ireland
| | - Aileen Houston
- Department of Medicine, University College Cork, Ireland.,APC Microbiome Ireland, University College Cork, Ireland
| | - Elizabeth Brint
- Department of Pathology, University College Cork, Ireland.,APC Microbiome Ireland, University College Cork, Ireland
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53
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Yue D, Sun X. Ixazomib promotes CHOP-dependent DR5 induction and apoptosis in colorectal cancer cells. Cancer Biol Ther 2018; 20:284-294. [PMID: 30359552 DOI: 10.1080/15384047.2018.1529095] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Ixazomib (Ninlaro), a novel proteasome inhibitor, has been developed for the treatment of many cancers and has demonstrated anti-tumor efficacy against various malignancies. However, the mechanism of the anti-tumor effect of ixazomib in colorectal cancer (CRC) cells remains unclear. METHODS MTS and flow cytometry were performed to determine the effect of ixazomib on CRC cells. Western blotting and real-time RT-PCR were performed to detect ixazomib-induced DR5 upregulation. ChIP was performed to detect CHOP binding to DR5 promoter. Finally, xenograft experiments were carried out to measure the antitumor effect of ixazomib in vivo. RESULTS In this study, we revealed the mechanism by which ixazomib inhibits the growth of CRC cells. Our findings indicated that ixazomib treatment induces CHOP-dependent DR5 induction, irrespective of p53 status. Furthermore, DR5 is necessary for ixazomib-mediated apoptosis. Ixazomib also synergized with TRAIL to induce marked apoptosis via DR5 in CRC cells. CONCLUSIONS Our findings further suggested that ixazomib sensitizes TRAIL/death receptor signaling pathway-targeted CRC and suggested that DR5 induction could be a valuable indicator of ixazomib sensitivity.
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Affiliation(s)
- Dan Yue
- a Department of Laboratory Medicine , ShengJing Hospital of China Medical University , Shenyang , China
| | - Xun Sun
- b Department of Immunology , China Medical University , Shenyang , China
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54
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Bousquet PA, Meltzer S, Sønstevold L, Esbensen Y, Dueland S, Flatmark K, Sitter B, Bathen TF, Seierstad T, Redalen KR, Eide L, Ree AH. Markers of Mitochondrial Metabolism in Tumor Hypoxia, Systemic Inflammation, and Adverse Outcome of Rectal Cancer. Transl Oncol 2018; 12:76-83. [PMID: 30273860 PMCID: PMC6170256 DOI: 10.1016/j.tranon.2018.09.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 09/11/2018] [Accepted: 09/19/2018] [Indexed: 12/14/2022] Open
Abstract
Tumor hypoxia contributes to therapy resistance and metastatic progression of locally advanced rectal cancer (LARC). We postulated that the tumor mitochondrial metabolism, manifested by reactive oxygen species (ROS) and mitochondrial DNA (mtDNA) damage, reflects how hypoxic conditions connect to cancer-induced systemic inflammation and poor outcome. Levels of ROS and mtDNA damage were analyzed in three colorectal cancer (CRC) cell lines cultured for 24 hours under normoxia (21% O2) or hypoxia (0.2% O2) and serum sampled at the time of diagnosis from 35 LARC patients participating in a prospective therapy study. Compared with normoxia, ROS were significantly repressed and mtDNA damage was significantly enhanced in the hypoxic CRC cell lines; hence, a low ratio of ROS to mtDNA damage was an indicator of hypoxic conditions. In the LARC patients, low serum ROS were associated with elevated levels of circulating carcinoembryonic antigen and tumor choline concentration, both indicative of unfavorable biology, as well as adverse progression-free and overall survival. A low ratio of ROS to mtDNA damage in serum was associated with poor local tumor response to the neoadjuvant treatment and, of note, elevated systemic inflammation factors (C-reactive protein, the interleukin-1 receptor antagonist, and factors involved in tumor necrosis factor signaling), indicating that deficient treatment response locally and detrimental inflammation systemically link to a hypoxic mitochondrial metabolism. In conclusion, serum ROS and damaged mtDNA may be markers of the mitochondrial metabolism driven by the state of oxygenation of the primary tumor and possibly implicated in systemic inflammation and adverse outcome of LARC.
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Affiliation(s)
- Paula A Bousquet
- Department of Oncology, Akershus University Hospital, 1478 Lørenskog, Norway; Department of Clinical Molecular Biology, Akershus University Hospital, 1478 Lørenskog, Norway.
| | - Sebastian Meltzer
- Department of Oncology, Akershus University Hospital, 1478 Lørenskog, Norway; Institute of Clinical Medicine, University of Oslo, 0318 Oslo, Norway.
| | - Linda Sønstevold
- Department of Oncology, Akershus University Hospital, 1478 Lørenskog, Norway; Department of Clinical Molecular Biology, Akershus University Hospital, 1478 Lørenskog, Norway.
| | - Ying Esbensen
- Department of Clinical Molecular Biology, Akershus University Hospital, 1478 Lørenskog, Norway.
| | - Svein Dueland
- Department of Oncology, Oslo University Hospital, 0424 Oslo, Norway.
| | - Kjersti Flatmark
- Department of Tumor Biology, Oslo University Hospital, 0424 Oslo, Norway; Department of Gastroenterological Surgery, Oslo University Hospital, 0424 Oslo, Norway; Institute of Clinical Medicine, University of Oslo, 0318 Oslo, Norway.
| | - Beathe Sitter
- Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
| | - Tone Frost Bathen
- Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
| | - Therese Seierstad
- Department of Radiology, Oslo University Hospital, 0424 Oslo, Norway.
| | - Kathrine Røe Redalen
- Department of Oncology, Akershus University Hospital, 1478 Lørenskog, Norway; Department of Physics, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
| | - Lars Eide
- Institute of Clinical Medicine, University of Oslo, 0318 Oslo, Norway; Department of Medical Biochemistry, Oslo University Hospital, 0424 Oslo, Norway.
| | - Anne Hansen Ree
- Department of Oncology, Akershus University Hospital, 1478 Lørenskog, Norway; Institute of Clinical Medicine, University of Oslo, 0318 Oslo, Norway.
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55
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Nahacka Z, Svadlenka J, Peterka M, Ksandrova M, Benesova S, Neuzil J, Andera L. TRAIL induces apoptosis but not necroptosis in colorectal and pancreatic cancer cells preferentially via the TRAIL-R2/DR5 receptor. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2018; 1865:522-531. [DOI: 10.1016/j.bbamcr.2017.12.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 12/07/2017] [Accepted: 12/21/2017] [Indexed: 12/19/2022]
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56
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Preparation of A Spaceflight: Apoptosis Search in Sutured Wound Healing Models. Int J Mol Sci 2017; 18:ijms18122604. [PMID: 29207508 PMCID: PMC5751207 DOI: 10.3390/ijms18122604] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 11/23/2017] [Accepted: 12/01/2017] [Indexed: 12/25/2022] Open
Abstract
To prepare the ESA (European Space Agency) spaceflight project “Wound healing and Sutures in Unloading Conditions”, we studied mechanisms of apoptosis in wound healing models based on ex vivo skin tissue cultures, kept for 10 days alive in serum-free DMEM/F12 medium supplemented with bovine serum albumin, hydrocortisone, insulin, ascorbic acid and antibiotics at 32 °C. The overall goal is to test: (i) the viability of tissue specimens; (ii) the gene expression of activators and inhibitors of apoptosis and extracellular matrix components in wound and suture models; and (iii) to design analytical protocols for future tissue specimens after post-spaceflight download. Hematoxylin-Eosin and Elastica-van-Gieson staining showed a normal skin histology with no signs of necrosis in controls and showed a normal wound suture. TdT-mediated dUTP-biotin nick end labeling for detecting DNA fragmentation revealed no significant apoptosis. No activation of caspase-3 protein was detectable. FASL, FADD, CASP3, CASP8, CASP10, BAX, BCL2, CYC1, APAF1, LAMA3 and SPP1 mRNAs were not altered in epidermis and dermis samples with and without a wound compared to 0 day samples (specimens investigated directly post-surgery). BIRC5, CASP9, and FN1 mRNAs were downregulated in epidermis/dermis samples with and/or without a wound compared to 0 day samples. BIRC2, BIRC3 were upregulated in 10 day wound samples compared to 0 day samples in epidermis/dermis. RELA/FAS mRNAs were elevated in 10 day wound and no wound samples compared to 0 day samples in dermis. In conclusion, we demonstrate that it is possible to maintain live skin tissue cultures for 10 days. The viability analysis showed no significant signs of cell death in wound and suture models. The gene expression analysis demonstrated the interplay of activators and inhibitors of apoptosis and extracellular matrix components, thereby describing important features in ex vivo sutured wound healing models. Collectively, the performed methods defining analytical protocols proved to be applicable for post-flight analyzes of tissue specimens after sample return.
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57
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Le Gallo M, Poissonnier A, Blanco P, Legembre P. CD95/Fas, Non-Apoptotic Signaling Pathways, and Kinases. Front Immunol 2017; 8:1216. [PMID: 29021794 PMCID: PMC5623854 DOI: 10.3389/fimmu.2017.01216] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 09/14/2017] [Indexed: 12/13/2022] Open
Abstract
Endothelial cells lining new blood vessels that develop during inflammatory disorders or cancers act as doors that either allow or block access to the tumor or inflamed organ. Recent data show that these endothelial cells in cancer tissues and inflamed tissues of lupus patients overexpress CD95L, the biological role of which is a subject of debate. The receptor CD95 (also named Fas or apoptosis antigen 1) belongs to the tumor necrosis factor (TNF) receptor superfamily. Its cognate ligand, CD95L, is implicated in immune homeostasis and immune surveillance. Because mutations of this receptor or its ligand lead to autoimmune disorders such as systemic lupus erythematosus (SLE) and cancers, CD95 and CD95L were initially thought to play a role in immune homeostasis and tumor elimination via apoptotic signaling pathways. However, recent data reveal that CD95 also evokes non-apoptotic signals, promotes inflammation, and contributes to carcinogenesis; therefore, it is difficult to dissect its apoptotic effects from its non-apoptotic effects during pathogenesis of disease. CD95L is cleaved by metalloproteases and so exists in two different forms: a transmembrane form and a soluble ligand (s-CD95L). We recently observed that the soluble ligand is overexpressed in serum from patients with triple-negative breast cancer or SLE, in whom it contributes to disease severity by activating non-apoptotic signaling pathways and promoting either metastatic dissemination or accumulation of certain T cell subsets in damaged organs. Here, we discuss the roles of CD95 in modulating immune functions via induction of mainly non-apoptotic signaling pathways.
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Affiliation(s)
- Matthieu Le Gallo
- Centre Eugène Marquis, Rennes, France.,Equipe Labellisée Ligue Contre Le Cancer, INSERM U1242 COSS Institut National de la Santé et de la Recherche Médical, Rennes, France.,Université de Rennes-1, Rennes, France
| | - Amanda Poissonnier
- Centre Eugène Marquis, Rennes, France.,Equipe Labellisée Ligue Contre Le Cancer, INSERM U1242 COSS Institut National de la Santé et de la Recherche Médical, Rennes, France.,Université de Rennes-1, Rennes, France
| | - Patrick Blanco
- Centre Hospitalier Universitaire (CHU) de Bordeaux, Université de Bordeaux, Bordeaux, France.,UMR CNRS 5164, Bordeaux, France
| | - Patrick Legembre
- Centre Eugène Marquis, Rennes, France.,Equipe Labellisée Ligue Contre Le Cancer, INSERM U1242 COSS Institut National de la Santé et de la Recherche Médical, Rennes, France.,Université de Rennes-1, Rennes, France
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58
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Szarynska M, Olejniczak A, Wierzbicki P, Kobiela J, Laski D, Sledzinski Z, Adrych K, Guzek M, Kmiec Z. FasR and FasL in colorectal cancer. Int J Oncol 2017; 51:975-986. [PMID: 28766682 DOI: 10.3892/ijo.2017.4083] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 07/11/2017] [Indexed: 11/06/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most common solid organ cancers prevalent worldwide causing, in spite of advancing therapeutic methodology, high rate of patient mortality, especially due to metastasis development. The cancer stem cell (CSC) theory of tumor growth indicates that CSCs within the tumor mass have great capacity to initiate and sustain tumor growth. Following the suggestion that Fas signaling can be engaged in apoptosis, tumor maintenance, senescence or DICE (death induced by CD95 or CD95L elimination), the attempts to broaden the knowledge concerning the relationships between CSCs features and FasR/FasL appeared to be necessary. The most important advantage of our study was the simultaneously analysis of CSCs from commonly used CRC lines (HCT116 and HT29) and tumor fragments collected from CRC patients. Moreover, the sphere-promoting expansion of CRC lines brought a specific three-dimensional specific environment for CSC exploration. We further investigated the function of Fas signaling in CRC lines depending on the culture mode as we incubated HCT116 and HT29 cells with anti-FasR agonistic antibodies. It appeared to act in a line-dependent and culture mode-dependent manner and influenced some particular features of CSCs such as spherogenicity, proliferation and phenotype. Additionally, the analysis of mRNA level showed that disease progression is associated with significantly increased expression of FasR and/or FasL. In conclusion, our observation seems to confirm that spherical model of cancer lines is more reliable for some sophisticated analysis because of their greater resemblance to the CSCs from human CRC samples in comparison to commonly used adherent cells, at least according to aspects of their biology analyzed in this study. That can be extended to the resemblance of in vitro sphere forming conditions to the in vivo environment. However, the greatest difference concerns the level of apoptosis, thus, this issue require further experiments.
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Affiliation(s)
- Magdalena Szarynska
- Department of Histology, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Agata Olejniczak
- Department of Histology, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Piotr Wierzbicki
- Department of Histology, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Jaroslaw Kobiela
- Department of General, Endocrine and Transplant Surgery, Medical University of Gdansk, Invasive Medicine Centre, 80-214 Gdansk, Poland
| | - Dariusz Laski
- Department of General, Endocrine and Transplant Surgery, Medical University of Gdansk, Invasive Medicine Centre, 80-214 Gdansk, Poland
| | - Zbigniew Sledzinski
- Department of General, Endocrine and Transplant Surgery, Medical University of Gdansk, Invasive Medicine Centre, 80-214 Gdansk, Poland
| | - Krystian Adrych
- Department of Hepatology and Gastroenterology, Medical University of Gdansk, Invasive Medicine Centre, 80-214 Gdansk, Poland
| | - Marek Guzek
- Department of Hepatology and Gastroenterology, Medical University of Gdansk, Invasive Medicine Centre, 80-214 Gdansk, Poland
| | - Zbigniew Kmiec
- Department of Histology, Medical University of Gdansk, 80-210 Gdansk, Poland
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59
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Hirsova P, Weng P, Salim W, Bronk SF, Griffith TS, Ibrahim SH, Gores GJ. TRAIL Deletion Prevents Liver, but Not Adipose Tissue, Inflammation during Murine Diet-Induced Obesity. Hepatol Commun 2017; 1:648-662. [PMID: 29124251 PMCID: PMC5673124 DOI: 10.1002/hep4.1069] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Tumor necrosis factor‐related apoptosis‐inducing ligand (TRAIL) and its cognate receptor(s) are up‐regulated in human and murine nonalcoholic steatohepatitis (NASH); however, the consequence of this enhanced expression on NASH pathogenesis remains unclear. TRAIL may either accentuate liver injury by promoting hepatic steatosis and inflammation or it may mitigate the disease process by improving systemic insulin resistance and averting hepatic fibrosis. Herein, we investigated the role of TRAIL in an obesity‐induced murine model of NASH. C57BL/6 wild‐type mice and Trail–/– mice were placed on a 20‐week standard chow or a high‐fat, high‐fructose, and high‐cholesterol (FFC) diet, which induces obesity, insulin resistance, and NASH. Metabolic phenotype, liver injury, inflammation and fibrosis, and adipose tissue homeostasis were examined. FFC diet‐fed Trail–/– mice displayed no difference in weight gain and metabolic profile when compared to wild‐type mice on the same diet. All FFC‐fed mice developed significant hepatic steatosis, which was attenuated in Trail–/– mice. TRAIL deficiency also significantly decreased FFC diet‐induced liver injury as manifested by reduced serum alanine aminotransferase values, hepatic terminal deoxynucleotidyl transferase‐mediated deoxyuridine triphosphate nick‐end labeling‐positive cells, and macrophage‐associated inflammation. FFC diet‐associated hepatic stellate cell activation and hepatic collagen deposition were also abrogated in Trail–/– mice. In contrast to the liver, TRAIL deletion did not improve FFC diet‐induced adipose tissue injury and inflammation and actually aggravated insulin resistance. Conclusion: NASH pathogenesis may be dissociated from other features of the metabolic syndrome, and liver‐targeted inhibition of TRAIL signaling may be salutary. (Hepatology Communications 2017;1:648–662)
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Affiliation(s)
- Petra Hirsova
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | - Peggy Weng
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | - Warda Salim
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | - Steven F Bronk
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | - Thomas S Griffith
- Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA.,Microbiology, Immunology, and Cancer Biology Graduate Program, University of Minnesota, Minneapolis, MN 55455, USA.,Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
| | - Samar H Ibrahim
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA.,Division of Pediatric Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | - Gregory J Gores
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
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60
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Abstract
Ischemic heart disease(IHD) is the leading cause of death worldwide. Despite the development of continuously improving therapeutic strategies, morbidity and mortality of patients with IHD remain relatively high. Exosomes are a subpopulation of vesicles that are universally recognized as major mediators in intercellular communication. Numerous preclinical studies have shown that these tiny vesicles were protective in IHD, through such actions as alleviating myocardial ischemia-reperfusion injury, promoting angiogenesis, inhibiting fibrosis, and facilitating cardiac regeneration. Our review focused on these beneficial exosome-mediated processes. In addition, we discuss in detail how to fully exploit the therapeutic potentials of exosomes in the field of IHD. Topics include identifying robust sources of exosomes, loading protective agents into exosomes, developing heart-specific exosomes, optimizing isolation methods, and translating the cardioprotective effects of exosomes into clinical practice. Finally, both the advantages and disadvantages of utilizing exosomes in clinical settings are addressed.
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Affiliation(s)
- Gui-Hao Chen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Jun Xu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Yue-Jin Yang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
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61
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Deoxyelephantopin and Isodeoxyelephantopin as Potential Anticancer Agents with Effects on Multiple Signaling Pathways. Molecules 2017. [PMID: 28635648 PMCID: PMC6152668 DOI: 10.3390/molecules22061013] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Cancer is the 2nd leading cause of death worldwide. The development of drugs to target only one specific signaling pathway has limited therapeutic success. Developing chemotherapeutics to target multiple signaling pathways has emerged as a new prototype for cancer treatment. Deoxyelephantopin (DET) and isodeoxyelephantopin (IDET) are sesquiterpene lactone components of “Elephantopus scaber and Elephantopus carolinianus”, traditional Chinese medicinal herbs that have long been used as folk medicines to treat liver diseases, diabetes, diuresis, bronchitis, fever, diarrhea, dysentery, cancer, and inflammation. Recently, the anticancer activity of DET and IDET has been widely investigated. Here, our aim is to review the current status of DET and IDET, and discuss their anticancer activity with specific emphasis on molecular targets and mechanisms used by these compounds to trigger apoptosis pathways which may help to further design and conduct research to develop them as lead therapeutic drugs for cancer treatments. The literature has shown that DET and IDET induce apoptosis through multiple signaling pathways which are deregulated in cancer cells and suggested that by targeting multiple pathways simultaneously, these compounds could selectively kill cancer cells. This review suggests that DET and IDET hold promising anticancer activity but additional studies and clinical trials are needed to validate and understand their therapeutic effect to develop them into potent therapeutics for the treatment of cancer.
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62
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Yang JS, Lu CC, Kuo SC, Hsu YM, Tsai SC, Chen SY, Chen YT, Lin YJ, Huang YC, Chen CJ, Lin WD, Liao WL, Lin WY, Liu YH, Sheu JC, Tsai FJ. Autophagy and its link to type II diabetes mellitus. Biomedicine (Taipei) 2017; 7:8. [PMID: 28612706 PMCID: PMC5479440 DOI: 10.1051/bmdcn/2017070201] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 05/02/2017] [Indexed: 02/06/2023] Open
Abstract
Autophagy, a double-edged sword for cell survival, is the research object on 2016 Nobel Prize in Physiology or Medicine. Autophagy is a molecular mechanism for maintaining cellular physiology and promoting survival. Defects in autophagy lead to the etiology of many diseases, including diabetes mellitus (DM), cancer, neurodegeneration, infection disease and aging. DM is a metabolic and chronic disorder and has a higher prevalence in the world as well as in Taiwan. The character of diabetes mellitus is hyperglycemia resulting from defects in insulin secretion, insulin action, or both. Type 2 diabetes mellitus (T2DM) is characterized by insulin resistance and failure of producing insulin on pancreatic beta cells. In T2DM, autophagy is not only providing nutrients to maintain cellular energy during fasting, but also removes damaged organelles, lipids and miss-folded proteins. In addition, autophagy plays an important role in pancreatic beta cell dysfunction and insulin resistance. In this review, we summarize the roles of autophagy in T2DM.
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Affiliation(s)
- Jai-Sing Yang
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Department of Medical Research, China Medical University Hospital, China Medical University Taichung
404 Taiwan
| | - Chi-Cheng Lu
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Department of Medical Research, China Medical University Hospital, China Medical University Taichung
404 Taiwan
| | - Sheng-Chu Kuo
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School of Pharmacy, China Medical University Taichung
404 Taiwan
| | - Yuan-Man Hsu
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Department of Biological Science and Technology, China Medical University Taichung
404 Taiwan
| | - Shih-Chang Tsai
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Department of Biological Science and Technology, China Medical University Taichung
404 Taiwan
| | - Shih-Yin Chen
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Genetics Center, Department of Medical Research, China Medical University Hospital Taichung
404 Taiwan
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School of Chinese Medicine, China Medical University Taichung
404 Taiwan
| | - Yng-Tay Chen
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Genetics Center, Department of Medical Research, China Medical University Hospital Taichung
404 Taiwan
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School of Chinese Medicine, China Medical University Taichung
404 Taiwan
| | - Ying-Ju Lin
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Genetics Center, Department of Medical Research, China Medical University Hospital Taichung
404 Taiwan
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School of Chinese Medicine, China Medical University Taichung
404 Taiwan
| | - Yu-Chuen Huang
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Genetics Center, Department of Medical Research, China Medical University Hospital Taichung
404 Taiwan
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School of Chinese Medicine, China Medical University Taichung
404 Taiwan
| | - Chao-Jung Chen
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Genetics Center, Department of Medical Research, China Medical University Hospital Taichung
404 Taiwan
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School of Chinese Medicine, China Medical University Taichung
404 Taiwan
| | - Wei-De Lin
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Genetics Center, Department of Medical Research, China Medical University Hospital Taichung
404 Taiwan
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School of Chinese Medicine, China Medical University Taichung
404 Taiwan
| | - Wen-Lin Liao
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Genetics Center, Department of Medical Research, China Medical University Hospital Taichung
404 Taiwan
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School of Chinese Medicine, China Medical University Taichung
404 Taiwan
| | - Wei-Yong Lin
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Genetics Center, Department of Medical Research, China Medical University Hospital Taichung
404 Taiwan
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School of Chinese Medicine, China Medical University Taichung
404 Taiwan
| | - Yu-Huei Liu
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Genetics Center, Department of Medical Research, China Medical University Hospital Taichung
404 Taiwan
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School of Chinese Medicine, China Medical University Taichung
404 Taiwan
| | - Jinn-Chyuan Sheu
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Institute of Biomedical Sciences, National Sun Yat-sen University Kaohsiung
804 Taiwan
| | - Fuu-Jen Tsai
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Genetics Center, Department of Medical Research, China Medical University Hospital Taichung
404 Taiwan
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School of Chinese Medicine, China Medical University Taichung
404 Taiwan
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Department of Medical Genetics, China Medical University Hospital, China Medical University Taichung
404 Taiwan
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Wajant H. TRAIL- and TNF-induced signaling complexes-so similar yet so different. EMBO J 2017; 36:1117-1119. [PMID: 28400401 DOI: 10.15252/embj.201796997] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Harald Wajant
- Division of Molecular Internal Medicine, Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
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