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Yuan J, Liu Z, Dong Y, Gao F, Xia X, Wang P, Luo Y, Zhang Z, Yan D, Zhang W. Pioneering 4,11-Dioxo-4,11-dihydro-1 H-anthra[2,3- d]imidazol-3-ium Compounds as Promising Survivin Inhibitors by Targeting ILF3/NF110 for Cancer Therapy. J Med Chem 2023; 66:16843-16868. [PMID: 38079530 DOI: 10.1021/acs.jmedchem.3c01551] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Survivin is a novel attractive target for cancer therapy; however, it is considered undruggable because it lacks enzymatic activities. Herein, we describe our efforts toward the discovery of a novel series of 4,11-dioxo-4,11-dihydro-1H-anthra[2,3-d]imidazol-3-ium derivatives as survivin inhibitors by targeting ILF3/NF110. Intensive structural modifications led us to identify a lead compound AQIM-I, which remarkably inhibited nonsmall cell lung cancer cells A549 with an IC50 value of 9 nM and solid tumor cell proliferation with more than 700-fold selectivity against human normal cells. Further biological studies revealed that compound AQIM-I significantly inhibited survivin expression and colony formation and induced ROS production, apoptosis, cell cycle arrest, DNA damage, and autophagy. Furthermore, the promoter-luciferase reporter assay showed that AQIM-I attenuated the survivin promoter activity enhanced by the overexpression of ILF3/NF110 in a concentration-dependent manner, and specific binding (KD = 163 nM) of AQIM-I to ILF3/NF110 was detected by surface plasmon resonance.
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Affiliation(s)
- Jing Yuan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Zhanxiong Liu
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Yachun Dong
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Feng Gao
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Xuelin Xia
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Penghui Wang
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Yanli Luo
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P. R. China
| | - Zhenfeng Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Deyue Yan
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
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Maurya CK, Tapadia MG. Expanded polyQ aggregates interact with sarco-endoplasmic reticulum calcium ATPase and Drosophila inhibitor of apoptosis protein1 to regulate polyQ mediated neurodegeneration in Drosophila. Mol Cell Neurosci 2023; 126:103886. [PMID: 37567489 DOI: 10.1016/j.mcn.2023.103886] [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: 05/13/2023] [Revised: 08/04/2023] [Accepted: 08/08/2023] [Indexed: 08/13/2023] Open
Abstract
Polyglutamine (polyQ) induced neurodegeneration is one of the leading causes of progressive neurodegenerative disorders characterized clinically by deteriorating movement defects, psychiatric disability, and dementia. Calcium [Ca2+] homeostasis, which is essential for the functioning of neuronal cells, is disrupted under these pathological conditions. In this paper, we simulated Huntington's disease phenotype in the neuronal cells of the Drosophila eye and identified [Ca2+] pump, sarco-endoplasmic reticulum calcium ATPase (SERCA), as one of the genetic modifiers of the neurodegenerative phenotype. This paper shows genetic and molecular interaction between polyglutamine (polyQ) aggregates, SERCA and DIAP1. We present evidence that polyQ aggregates interact with SERCA and alter its dynamics, resulting in a decrease in cytosolic [Ca2+] and an increase in ER [Ca2+], and thus toxicity. Downregulating SERCA lowers the enhanced calcium levels in the ER and rescues, morphological and functional defects caused due to expanded polyQ repeats. Cell proliferation markers such as Yorkie (Yki), Scalloped (Sd), and phosphatidylinositol 3 kinases/protein kinase B (PI3K/Akt), also respond to varying levels of calcium due to genetic manipulations, adding to the amelioration of degeneration. These results imply that neurodegeneration due to expanded polyQ repeats is sensitive to SERCA activity, and its manipulation can be an important step toward its therapeutic measures.
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Affiliation(s)
- Chandan Kumar Maurya
- Cytogenetics Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Madhu G Tapadia
- Cytogenetics Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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Barroso T, Melo-Alvim C, Ribeiro LA, Casimiro S, Costa L. Targeting Inhibitor of Apoptosis Proteins to Overcome Chemotherapy Resistance-A Marriage between Targeted Therapy and Cytotoxic Chemotherapy. Int J Mol Sci 2023; 24:13385. [PMID: 37686191 PMCID: PMC10487656 DOI: 10.3390/ijms241713385] [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: 07/31/2023] [Revised: 08/20/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Precision oncology is the ultimate goal of cancer treatment, i.e., to treat cancer and only cancer, leaving all the remaining cells and tissues as intact as possible. Classical chemotherapy and radiotherapy, however, are still effective in many patients with cancer by effectively inducing apoptosis of cancer cells. Cancer cells might resist apoptosis via the anti-apoptotic effects of the inhibitor of apoptosis proteins. Recently, the inhibitors of those proteins have been developed with the goal of enhancing the cytotoxic effects of chemotherapy and radiotherapy, and one of them, xevinapant, has already demonstrated effectiveness in a phase II clinical trial. This class of drugs represents an example of synergism between classical cytotoxic chemo- and radiotherapy and new targeted therapy.
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Affiliation(s)
- Tiago Barroso
- Medical Oncology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, 1649-035 Lisbon, Portugal; (C.M.-A.); (L.A.R.); (L.C.)
| | - Cecília Melo-Alvim
- Medical Oncology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, 1649-035 Lisbon, Portugal; (C.M.-A.); (L.A.R.); (L.C.)
| | - Leonor Abreu Ribeiro
- Medical Oncology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, 1649-035 Lisbon, Portugal; (C.M.-A.); (L.A.R.); (L.C.)
| | - Sandra Casimiro
- Luís Costa Lab, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisbon, Portugal;
| | - Luís Costa
- Medical Oncology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, 1649-035 Lisbon, Portugal; (C.M.-A.); (L.A.R.); (L.C.)
- Luís Costa Lab, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisbon, Portugal;
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Demirci NS, Çavdar E, Erdem GU, Hatipoglu E, Celik E, Sezer S, Yolcu A, Dogan M, Seber ES. Is the serum level of survivin, an antiapoptotic protein, a potential predictive and prognostic biomarker in metastatic pancreatic cancer? Medicine (Baltimore) 2023; 102:e34014. [PMID: 37352081 PMCID: PMC10289789 DOI: 10.1097/md.0000000000034014] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/15/2023] [Accepted: 05/25/2023] [Indexed: 06/25/2023] Open
Abstract
In the present study, we aimed to assess the association between the serum survivin level and overall survival and treatment response rates in metastatic pancreatic cancer (MPC). Serum samples were prospectively collected from 41 patients with newly diagnosed MPC patients and 41 healthy individuals (control group) to assess the survivin levels. The median survivin level was 136.2 ng/mL in patients with MPC and 52 ng/mL in healthy individuals (P = .028). Patients were divided into low- and high-survivin groups according to the baseline median survivin level. Patients with a high serum survivin level compared with a low serum survivin level had shorter median progression-free survival (2.39 vs 7.06 months; P = .008, respectively) and overall survival (3.74 vs 9.52 months; P = .026, respectively). Patients with higher serum survivin levels had significantly worse response rates (P = .007). The baseline high level of serum survivin in patients with MPC may be associated with treatment resistance and poor prognosis. A confirmation will be needed for these results in future large multicenter prospective studies.
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Affiliation(s)
- Nebi Serkan Demirci
- Department of Medical Oncology, Faculty of Medicine, Istanbul University-Cerrahpasa Cerrahpasa, Turkey
| | - Eyyüp Çavdar
- Department of Oncology, Faculty of Medicine, Tekirdag Namik Kemal University, Turkey
| | - Gokmen Umut Erdem
- Department of Medical Oncology, Başakşehir Çam and Sakura City Hospital, Turkey
| | - Engin Hatipoglu
- Department of General Surgery, Faculty of Medicine, Istanbul University-Cerrahpasa Cerrahpasa, Turkey
| | - Emir Celik
- Department of Medical Oncology, Haydarpaşa Numune Training and Research Hospital, University of Health Sciences, Turkey
| | - Sevilay Sezer
- Department of Biochemistry, Ministry of Health Ankara City Hospital, Turkey
| | - Ahmet Yolcu
- Department of Radiation Oncology, Tekirdag Namik Kemal University Faculty of Medicine, Turkey
| | - Mutlu Dogan
- Department of Medical Oncology, Ankara Oncology Training and Research Hospital, Turkey
| | - Erdogan Selcuk Seber
- Department of Oncology, Faculty of Medicine, Tekirdag Namik Kemal University, Turkey
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Ventre KS, Roehle K, Bello E, Bhuiyan AM, Biary T, Crowley SJ, Bruck PT, Heckler M, Lenehan PJ, Ali LR, Stump CT, Lippert V, Clancy-Thompson E, Conce Alberto WD, Hoffman MT, Qiang L, Pelletier M, Akin JJ, Dougan M, Dougan SK. cIAP1/2 Antagonism Induces Antigen-Specific T Cell-Dependent Immunity. J Immunol 2023; 210:991-1003. [PMID: 36881882 PMCID: PMC10036868 DOI: 10.4049/jimmunol.2200646] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 01/24/2023] [Indexed: 03/09/2023]
Abstract
Checkpoint blockade immunotherapy has failed in pancreatic cancer and other poorly responsive tumor types in part due to inadequate T cell priming. Naive T cells can receive costimulation not only via CD28 but also through TNF superfamily receptors that signal via NF-κB. Antagonists of the ubiquitin ligases cellular inhibitor of apoptosis protein (cIAP)1/2, also called second mitochondria-derived activator of caspases (SMAC) mimetics, induce degradation of cIAP1/2 proteins, allowing for the accumulation of NIK and constitutive, ligand-independent activation of alternate NF-κB signaling that mimics costimulation in T cells. In tumor cells, cIAP1/2 antagonists can increase TNF production and TNF-mediated apoptosis; however, pancreatic cancer cells are resistant to cytokine-mediated apoptosis, even in the presence of cIAP1/2 antagonism. Dendritic cell activation is enhanced by cIAP1/2 antagonism in vitro, and intratumoral dendritic cells show higher expression of MHC class II in tumors from cIAP1/2 antagonism-treated mice. In this study, we use in vivo mouse models of syngeneic pancreatic cancer that generate endogenous T cell responses ranging from moderate to poor. Across multiple models, cIAP1/2 antagonism has pleiotropic beneficial effects on antitumor immunity, including direct effects on tumor-specific T cells leading to overall increased activation, increased control of tumor growth in vivo, synergy with multiple immunotherapy modalities, and immunologic memory. In contrast to checkpoint blockade, cIAP1/2 antagonism does not increase intratumoral T cell frequencies. Furthermore, we confirm our previous findings that even poorly immunogenic tumors with a paucity of T cells can experience T cell-dependent antitumor immunity, and we provide transcriptional clues into how these rare T cells coordinate downstream immune responses.
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Affiliation(s)
- Katherine S. Ventre
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
| | - Kevin Roehle
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
- Department of Immunology, Harvard Medical School, Boston, MA
- Novartis Institute for Biomedical Research, Cambridge, MA
| | - Elisa Bello
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
- Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Aladdin M. Bhuiyan
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
- Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Tamara Biary
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
- Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Stephanie J. Crowley
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
| | - Patrick T. Bruck
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
| | - Max Heckler
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
- Department of Immunology, Harvard Medical School, Boston, MA
| | - Patrick J. Lenehan
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
- Department of Immunology, Harvard Medical School, Boston, MA
| | - Lestat R. Ali
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
- Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston, MA
- Department of Medicine, Harvard Medical School, Boston, MA
| | - Courtney T. Stump
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
- Department of Immunology, Harvard Medical School, Boston, MA
- Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Victoria Lippert
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
| | - Eleanor Clancy-Thompson
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
- Department of Immunology, Harvard Medical School, Boston, MA
| | - Winiffer D. Conce Alberto
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
- Department of Immunology, Harvard Medical School, Boston, MA
| | - Megan T. Hoffman
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
- Department of Immunology, Harvard Medical School, Boston, MA
| | - Li Qiang
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
- Department of Immunology, Harvard Medical School, Boston, MA
| | - Marc Pelletier
- Novartis Institute for Biomedical Research, Cambridge, MA
| | - James J. Akin
- Novartis Institute for Biomedical Research, Cambridge, MA
| | - Michael Dougan
- Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston, MA
- Department of Medicine, Harvard Medical School, Boston, MA
| | - Stephanie K. Dougan
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA
- Department of Immunology, Harvard Medical School, Boston, MA
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Liu X, Yao JJ, Chen Z, Lei W, Duan R, Yao Z. Lipopolysaccharide sensitizes the therapeutic response of breast cancer to IAP antagonist. Front Immunol 2022; 13:906357. [PMID: 36119107 PMCID: PMC9471085 DOI: 10.3389/fimmu.2022.906357] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022] Open
Abstract
Inhibitor of apoptosis protein (IAP) is a class of E3 ubiquitin ligases functioning to support cancer survival and growth. Many small-molecule IAP antagonists have been developed, aiming to degrade IAP proteins to kill cancer. We have evaluated the effect of lipopolysaccharide (LPS), a component of the bacterial outer membrane, on IAP antagonists in treating breast cancer in a mouse model to guide future clinical trials. We show that LPS promotes IAP antagonist-induced regression of triple-negative breast cancer (TNBC) from MDA-MB-231 cells in immunodeficient mice. IAP antagonists such as SM-164, AT-406, and BV6, do not kill MDA-MB-231 cells alone, but allow LPS to induce cancer cell apoptosis rapidly. The apoptosis caused by LPS plus SM-164 is blocked by toll-like receptor 4 (TLR4) or MyD88 inhibitor, which inhibits LPS-induced TNFα production by the cancer cells. Consistent with this, MDA-MB-231 cell apoptosis induced by LPS plus SM-164 is also blocked by the TNF inhibitor. LPS alone does not kill MDA-MB-231 cells because it markedly increases the protein level of cIAP1/2, which is directly associated with and stabilized by MyD88, an adaptor protein of TLR4. ER+ MCF7 breast cancer cells expressing low levels of cIAP1/2 undergo apoptosis in response to SM-164 combined with TNFα but not with LPS. Furthermore, TNFα but not LPS alone inhibits MCF7 cell growth in vitro. Consistent with these, LPS combined with SM-164, but not either of them alone, causes regression of ER+ breast cancer from MCF7 cells in immunodeficient mice. In summary, LPS sensitizes the therapeutic response of both triple-negative and ER+ breast cancer to IAP antagonist therapy by inducing rapid apoptosis of the cancer cells through TLR4- and MyD88-mediated production of TNFα. We conclude that antibiotics that can reduce microbiota-derived LPS should not be used together with an IAP antagonist for cancer therapy.
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Affiliation(s)
- Xin Liu
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, United States
- Department of Orthopedics, Tianjin Hospital, Tianjin, China
| | - Jimmy J. Yao
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, United States
- School of Engineering, University of Rochester, Rochester, NY, United States
| | - Zhongxuan Chen
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, United States
- School of Engineering, University of Rochester, Rochester, NY, United States
| | - Wei Lei
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, United States
- Department of Medical Imaging, Henan University First Affiliated Hospital, Kaifeng, China
| | - Rong Duan
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, United States
| | - Zhenqiang Yao
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, United States
- *Correspondence: Zhenqiang Yao,
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Witkop EM, Wikfors GH, Proestou DA, Lundgren KM, Sullivan M, Gomez-Chiarri M. Perkinsus marinus suppresses in vitro eastern oyster apoptosis via IAP-dependent and caspase-independent pathways involving TNFR, NF-kB, and oxidative pathway crosstalk. Dev Comp Immunol 2022; 129:104339. [PMID: 34998862 DOI: 10.1016/j.dci.2022.104339] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 10/01/2021] [Revised: 12/29/2021] [Accepted: 01/01/2022] [Indexed: 06/14/2023]
Abstract
The protozoan parasite Perkinsus marinus causes Dermo disease in eastern oysters, Crassostrea virginica, and can suppress apoptosis of infected hemocytes using incompletely understood mechanisms. This study challenged hemocytes in vitro with P. marinus for 1 h in the presence or absence of caspase inhibitor Z-VAD-FMK or Inhibitor of Apoptosis protein (IAP) inhibitor GDC-0152. Hemocytes exposure to P. marinus significantly reduced granulocyte apoptosis, and pre-incubation with Z-VAD-FMK did not affect P. marinus-induced apoptosis suppression. Hemocyte pre-incubation with GDC-0152 prior to P. marinus challenge further reduced apoptosis of granulocytes with engulfed parasite, but not mitochondrial permeabilization. This suggests P. marinus-induced apoptosis suppression may be caspase-independent, affect an IAP-involved pathway, and occur downstream of mitochondrial permeabilization. P. marinus challenge stimulated hemocyte differential expression of oxidation-reduction, TNFR, and NF-kB pathways. WGCNA analysis of P. marinus expression in response to hemocyte exposure revealed correlated protease, kinase, and hydrolase expression that could contribute to P. marinus-induced apoptosis suppression.
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Affiliation(s)
- Erin M Witkop
- University of Rhode Island, Department of Fisheries, Animal and Veterinary Science, 120 Flagg Rd, Kingston, RI, USA
| | - Gary H Wikfors
- NOAA Northeast Fisheries Science Center Milford Laboratory, 212 Rogers Ave, Milford, CT, USA
| | - Dina A Proestou
- USDA ARS NEA NCWMAC Shellfish Genetics Program, 120 Flagg Rd, Kingston, RI, USA
| | | | - Mary Sullivan
- USDA ARS NEA NCWMAC Shellfish Genetics Program, 120 Flagg Rd, Kingston, RI, USA
| | - Marta Gomez-Chiarri
- University of Rhode Island, Department of Fisheries, Animal and Veterinary Science, 120 Flagg Rd, Kingston, RI, USA.
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Xiao Y, Wang C, Xiong M, Yang Y, Zhang Q, Liu X, Zou B, Gou M. Self-Assembled Nanoparticle Mediated Survivin-T34A for Ovarian Cancer Therapy. J Biomed Nanotechnol 2019; 14:2092-2101. [PMID: 30305216 DOI: 10.1166/jbn.2018.2641] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Gene therapy is emerging as a promising tool for cancer treatment. Down-regulation of survivin gene can lead to the cancer inhibition. However, the lack of efficient and safe gene delivery system is still a critical obstacle to clinical gene therapy. In this study, we use a biodegradable nanoparticle to deliver human survivin-T34A (T34A) to dominant-negatively regulate survivin gene for ovarian cancer therapy. This nanoparticle, self-assembled from monomethoxy poly(ethylene glycol)-poly(D,L-lactide) (MPEG-PLA) copolymer and N-[1-(2,3-dioleoyloxy) propyl]-N,N,N-trimethylammonium chloride (DOTAP), has high transfection capability and negligible cytotoxicity. The nanoparticle-delivered T34A gene can efficiently inhibit the growth of SKOV3 ovarian cancer cells through induction of apoptosis in vitro. After intraperitoneal injection, the nanoparticle-delivered T34A gene significantly inhibited the growth of intraperitoneal metastasis of SKOV3 ovarian cancer, with no obvious adverse effects. Our data suggest that the nanoparticle-delivered T34A gene has promising clinical applications in ovarian cancer treatment.
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Xu YW, Zheng SB, Chen BS, Wen Y, Zhu SW. [Effect of sodium phenylbutyrate on the sensitivity of PC3/DTX-resistant prostate cancer cells to docetaxel]. Nan Fang Yi Ke Da Xue Xue Bao 2018; 37:130-134. [PMID: 28109113 PMCID: PMC6765754 DOI: 10.3969/j.issn.1673-4254.2017.01.24] [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] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To investigate the effect of sodium phenylbutyrate (SPB) in modulating docetaxel resistance in human prostate cancer cells in vitro. METHODS A PC3/docetaxel-resistant human prostate cancer cell line PC3/DTX was induced and examined for proliferation, viability, and cell inhibition rate in the presence of SPB. The concentration of concentration of docetaxel required to kill 50% of PC3/DTX cells incubated with 0, 1, 2, and 4 mmol/L SPB was determined using MTT assay. Cell apoptosis rate was analyzed with flow cytometry and the cellular expressions of p21, cyclin D1 and survivin proteins were detected using Western blotting. RESULTS Treatment of PC3/DTX cells with 0, 1, 2, and 4 mmol/L of SPB for 48 h resulted in cell viabilities of (99.85∓2.69)%, (84.68∓3.87)%, (68.65∓4.54)% and (43.54∓5.69)%, and cell inhibition rates of (10.69∓3.65)%, (25.78∓4.58)%, (54.68∓3.98)% and (69.84∓6.54)%, respectively (P<0.05). The concentration of docetaxel required to kill 50% of PC3/DTX cells cultured in the presence of with 0, 1, 2, and 4 mmol/L SPB was 135.98∓2.69, 109.65∓3.87, 87.65∓3.84 and 64.62∓2.98 nmol/L, respectively (P<0.05), and the cell apoptosis rates were (7.2∓0.8)%, (10.2∓0.9)%, (19.8∓2.1)% and (27.4∓2.5)%, respectively. SPB treatment promoted the protein expression of p21 and suppressed the expressions of cyclin D1 and survivin in PC3/DTX cells. CONCLUSION SPB can affect the expressions of p21, cyclin D1, and survivin in PC3/DTX cells and increase the sensitivity to the drug-resistant cells to docetaxel.
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Affiliation(s)
- Ya-Wen Xu
- Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China.E-mail:
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Braný D, Dvorská D, Kúdela E, Danková Z, Halášová E, Višňovský J. Potential of survivin for treatment of gynaecological tumour diseases. Ceska Gynekol 2018; 83:226-231. [PMID: 30764624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
OBJECTIVE The main purpose of this article is to consolidate known facts about survivin, its contribution to inhibition of apoptosis, impact to tumorigenesis of gynaecological types of tumours. and possibilities of inhibition of survivin on molecular-genetic levels. DESIGN A review article. SETTINGS Division of Molecular Medicine, Biomedical Center in Martin, JLF UK Martin, Slovakia; Department of Gynaecology and Obstetrics JLF UK and UNM Martin, Slovakia; Division of Oncology, Biomedical Center, JLF UK Martin, Slovakia. METHODS An analysis of the literature using database search engines focused on aberations in fuction of survivin, primarily in case of gynaecological tumours and possibilities of its inhibition. RESULTS AND CONCLUSIONS Survivin is the smallest member of inhibitor of apoptosis (IAP) family. Despite of its size and affiliation to mentioned gene family, survivin can affect besides inhibition of apoptosis also proper process of mitosis, DNA reparation and angiogenesis. High levels of survivin expression are typical for fetal tissues during intrauterine developement. In healthy, adult tissues remain levels of survivin very low. Nonetheless, abundant expression of survivin is in many cases typical for various types of cancer, including gynaecologycal cancers Generally, it is possible to associate higher amounts of survivin with poor prognosis and resistance to chemo- or radiotherapy.
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Zaghloul HAH, Hice R, Arensburger P, Federici BA. Transcriptome Analysis of the Spodoptera frugiperda Ascovirus In Vivo Provides Insights into How Its Apoptosis Inhibitors and Caspase Promote Increased Synthesis of Viral Vesicles and Virion Progeny. J Virol 2017; 91:e00874-17. [PMID: 28956762 PMCID: PMC5686725 DOI: 10.1128/jvi.00874-17] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 05/30/2017] [Accepted: 08/31/2017] [Indexed: 11/20/2022] Open
Abstract
Ascoviruses are double-stranded DNA (dsDNA) viruses that attack caterpillars and differ from all other viruses by inducing nuclear lysis followed by cleavage of host cells into numerous anucleate vesicles in which virus replication continues as these grow in the blood. Ascoviruses are also unusual in that most encode a caspase or caspase-like proteins. A robust cell line to study the novel molecular biology of ascovirus replication in vitro is lacking. Therefore, we used strand-specific transcriptome sequencing (RNA-Seq) to study transcription in vivo in third instars of Spodoptera frugiperda infected with the type species, Spodoptera frugiperda ascovirus1a (SfAV-1a), sampling transcripts at different time points after infection. We targeted transcription of two types of SfAV-1a genes; first, 44 core genes that occur in several ascovirus species, and second, 26 genes predicted in silico to have metabolic functions likely involved in synthesizing viral vesicle membranes. Gene cluster analysis showed differences in temporal expression of SfAV-1a genes, enabling their assignment to three temporal classes: early, late, and very late. Inhibitors of apoptosis (IAP-like proteins; ORF016, ORF025, and ORF074) were expressed early, whereas its caspase (ORF073) was expressed very late, which correlated with apoptotic events leading to viral vesicle formation. Expression analysis revealed that a Diedel gene homolog (ORF121), the only known "virokine," was highly expressed, implying that this ascovirus protein helps evade innate host immunity. Lastly, single-nucleotide resolution of RNA-Seq data revealed 15 bicistronic and tricistronic messages along the genome, an unusual occurrence for large dsDNA viruses.IMPORTANCE Unlike all other DNA viruses, ascoviruses code for an executioner caspase, apparently involved in a novel cytopathology in which viral replication induces nuclear lysis followed by cell cleavage, yielding numerous large anucleate viral vesicles that continue to produce virions. Our transcriptome analysis of genome expression in vivo by the Spodoptera frugiperda ascovirus shows that inhibitors of apoptosis are expressed first, enabling viral replication to proceed, after which the SfAV-1a caspase is synthesized, leading to viral vesicle synthesis and subsequent extensive production of progeny virions. Moreover, we detected numerous bicistronic and tricistronic mRNA messages in the ascovirus transcriptome, implying that ascoviruses use other noncanonical translational mechanisms, such as internal ribosome entry sites (IRESs). These results provide the first insights into the molecular biology of a unique coordinated gene expression pattern in which cell architecture is markedly modified, more than in any other known eukaryotic virus, to promote viral reproduction and transmission.
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Affiliation(s)
- Heba A H Zaghloul
- Interdepartmental Graduate Program in Microbiology and Institute for Integrative Genome Biology, University of California, Riverside, Riverside, California, USA
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Robert Hice
- Interdepartmental Graduate Program in Microbiology and Institute for Integrative Genome Biology, University of California, Riverside, Riverside, California, USA
| | - Peter Arensburger
- California State Polytechnic University, Pomona, Department of Biological Sciences, Pomona, California, USA
| | - Brian A Federici
- Interdepartmental Graduate Program in Microbiology and Institute for Integrative Genome Biology, University of California, Riverside, Riverside, California, USA
- Department of Entomology, University of California, Riverside, Riverside, California, USA
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Cheng CW, Leong KW, Tse E. Understanding the role of PIN1 in hepatocellular carcinoma. World J Gastroenterol 2016; 22:9921-9932. [PMID: 28018099 PMCID: PMC5143759 DOI: 10.3748/wjg.v22.i45.9921] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 09/26/2016] [Accepted: 10/31/2016] [Indexed: 02/06/2023] Open
Abstract
PIN1 is a peptidyl-prolyl cis/trans isomerase that binds and catalyses isomerization of the specific motif comprising a phosphorylated serine or threonine residue preceding a proline (pSer/Thr-Pro) in proteins. PIN1 can therefore induce conformational and functional changes of its interacting proteins that are regulated by proline-directed serine/threonine phosphorylation. Through this phosphorylation-dependent prolyl isomerization, PIN1 fine-tunes the functions of key phosphoproteins (e.g., cyclin D1, survivin, β-catenin and x-protein of hepatitis B virus) that are involved in the regulation of cell cycle progression, apoptosis, proliferation and oncogenic transformation. PIN1 has been found to be over-expressed in many cancers, including human hepatocellular carcinoma (HCC). It has been shown previously that overexpression of PIN1 contributes to the development of HCC in-vitro and in xenograft mouse model. In this review, we first discussed the aberrant transcription factor expression, miRNAs dysregulation, PIN1 gene promoter polymorphisms and phosphorylation of PIN1 as potential mechanisms underlying PIN1 overexpression in cancers. Furthermore, we also examined the role of PIN1 in HCC tumourigenesis by reviewing the interactions between PIN1 and various cellular and viral proteins that are involved in β-catenin, NOTCH, and PI3K/Akt/mTOR pathways, apoptosis, angiogenesis and epithelial-mesenchymal transition. Finally, the potential of PIN1 inhibitors as an anti-cancer therapy was explored and discussed.
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Ilienko IN, Bazyka DA. Overexpression of TP53, TP53I3 and BIRC5, alterations of gene regulation of apoptosis and aging of human immune cells in a remote period after radiation exposure. Probl Radiac Med Radiobiol 2016; 21:238-246. [PMID: 28027556] [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] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To identify a contributive role of changes in gene regulation of apoptosis and telomere length at tran scriptional and translational levels to the formation of radiation induced effects in immune system. PATIENTS AND METHODS Study groups included 310 Chornobyl (Chornobyl) cleanup workers (dose of external expo sure (360.82 ± 32.3) mSv; age 58.9 ± 0.6 (M ± SD) years) and control (n = 77; age (52.9 ± 0.64) (M ± SD) years). Expression of CD95, phosphatidylserine receptors, bcl2 and p53 proteins was studied by flow cytometry; the relative expression (RQ) of BAX, BIRC5, FASLG, MADD, MAPK14, TP53, TP53I3, TERT, TERF1, TERF2 genes was performed using 7900 HT Fast RT PCR System and TagMan technology. Relative telomere length (RTL) was quantified by flow FISH assay. RESULTS Dose dependent deregulation of apoptosis was shown at transcriptional level (TP53, TP53 I3, BAX, BIRC5, FASL genes) and translational level (bcl 2 and p53 proteins) with blocking entry to apoptosis, dose dependent activation of anti apoptotic proteins and TP53 mediated expression of genes inhibitors of apoptosis. After exposure below 100 mSv a decrease in TERT gene RQ was associated with shortened telomeres, after exposure to doses over 500 mSv the TERT RQ and RTL increase were associated with imbalance in TERF1 and TERF2 genes expression. CONCLUSION Our study demonstrates a presence of subsequent changes in gene expression, regulatory proteins pres entation, telomere length and distribution of cells by the stages of apoptosis in a late period after radiation expo sure from low dose range to doses over 500 mSv. Results of the study contribute to the basic concepts on the late biological effects in immune system.
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Affiliation(s)
- I N Ilienko
- State Institution National Research Center for Radiation Medicine of the National Academy of Medical Sciences of Ukraine, Melnykov str., 53, Kyiv, 04050, Ukraine
| | - D A Bazyka
- State Institution National Research Center for Radiation Medicine of the National Academy of Medical Sciences of Ukraine, Melnykov str., 53, Kyiv, 04050, Ukraine
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14
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Hardie J, Jiang Y, Tetrault E, Ghazi P, Tonga GY, Farkas M, Rotello VM. Simultaneous cytosolic delivery of a chemotherapeutic and siRNA using nanoparticle-stabilized nanocapsules. Nanotechnology 2016; 27:374001. [PMID: 27505356 PMCID: PMC5011398 DOI: 10.1088/0957-4484/27/37/374001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report on nanoparticle-stabilized capsules (NPSCs) as a platform for the co-delivery of survivin-targeted siRNA and tamoxifen. These capsules feature an inner oil core that provides a carrier for tamoxifen, and is coated on the surface with positively charged nanoparticles self-assembled with siRNA. The multifaceted chemical nature of the NPSC system enables the simultaneous delivery of both payloads directly into the cytosol in vitro. The NPSC co-delivery of tamoxifen and survivin-targeted siRNA into breast cancer cells disables the pathways that inhibit apoptosis, resulting in enhanced breast cell death.
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Affiliation(s)
| | | | - Emily Tetrault
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant St, Amherst, MA 01003, USA
| | - Phaedra Ghazi
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant St, Amherst, MA 01003, USA
| | - Gulen Yesilbag Tonga
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant St, Amherst, MA 01003, USA
| | - Michelle Farkas
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant St, Amherst, MA 01003, USA
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant St, Amherst, MA 01003, USA
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Abstract
Smac-mimetics are compounds that target cellular Inhibitor of APoptosis (cIAP) proteins and induce tumor cell death. In this issue of Cancer Cell, Yang and colleagues (2016) identify cIAPs at the CARD11-MALT1-BCL10 complex in the ABC subtype of diffuse large B cell lymphoma (DLBCL), making this malignancy a prime target for these drugs.
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Affiliation(s)
- Ueli Nachbur
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Melbourne, VIC 3010, Australia.
| | - John Silke
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Melbourne, VIC 3010, Australia
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Abstract
Survivin is proposed to function as a mitotic regulator and an apoptosis inhibitor during development and pathogenesis. As such, survivin has aroused keen interest in disparate areas of basic and translational research. Survivin acts as a subunit of the chromosomal passenger complex (CPC), composed of the mitotic kinase Aurora-B, Borealin and INCENP, and is essential for proper chromosome segregation and cytokinesis. Our recent findings indicate that the nuclear export receptor Crm1 is critically involved in tethering the CPC to the centromere by interacting with a leucine-rich nuclear export signal (NES), evolutionary conserved in all mammalian survivin proteins. In addition, the survivin/Crm1 interaction seems to be required for the cytoprotective activity of survivin, because export deficient survivin fails to protect tumor cells against cancer therapy-induced apoptosis. These findings appear to be of clinical relevance since preferential nuclear localization of survivin turned out to be a favorable prognostic factor in cancer patients. Besides emphasizing the functional significance of the Crm1/survivin interface, we suggest to exploit the pharmacogenetic interference with survivin's export as a novel strategy to antagonize survivin's activity.
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Affiliation(s)
- Shirley K Knauer
- Department of Otorhinolaryngology, Molecular and Cellular Oncology, University of Mainz, Mainz, Germany
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Abstract
OBJECTIVE To investigate the role of antiapoptosis gene, survivin involved in regulating cell sensitivity to taxanes and platinum compounds. METHODS Cultured human epithelial ovarian cancer cell line A2780 and its platinum(DDP)-resistance cell line A2780/DDP were divided into three groups as control, treatment with DDP, and treatment with Taxol Expression of mdr1 and survivin genes in each group was detected by using reverse transcription-polymerase chain reaction (RT-PCR). Apoptosis in the ovarian cancer cell lines was measured by flow cytometry. RESULTS After treatment with DDP for 48 h, relative survivin expression was significantly lower than that of no drug given (p<0.05). In A2780/DDP cells, expression of Survivn was obviously higher than that of the control group (P<0.05) after treatment of DDP for 48 h. Interestingly, survivin mRNA level was significantly decreased after treatment with Taxol for 48 h in the A2780/DDP-Taxol group compared with that in the control group. Apoptosis rate of A2780 cells was significantly increased to 46.21% and 44.46%, respectively, with treatment of DDP and Taxol. However, apoptosis rate in A2780/DDP was only 20.04% after DDP treatment for 48 h, demonstrating the presence of resistance to DDP in A2780/DDP cells. CONCLUSIONS This study demonstrated that changes in survivin mRNA level were related to the chemotherapy-induced apoptosis. Survivin may be considered as a biological indicator of the chemo-resistance of ovarian cancer.
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Affiliation(s)
- Zehua Wang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefong Dadoo, Wuhan, China.
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Ulasov IV, Rivera AA, Sonabend AM, Rivera LB, Wang M, Zhu ZB, Lesniak MS. Comparative evaluation of survivin, midkine, and CXCR4 promoters for transcriptional targeting of glioma gene therapy. Cancer Biol Ther 2014; 6:679-85. [PMID: 17404502 DOI: 10.4161/cbt.6.5.3957] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [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] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Transcriptional targeting is a key strategy to enhance therapeutic efficacy of gene therapy applications. In the context of oncolytic virotherapy, transcriptional promoter elements are used from genes that are over expressed in a variety of malignant cancers. In the present study, we examined the feasibility of transcriptional targeting to glioma cells by comparing the activity of survivin, midkine, and CXCR4 tumor-specific promoters. METHODS To evaluate the expression level of several glioma related genes, we performed quantitative RT-PCR analyses on samples obtained from cell lines and patients. To determine specific level of gene expression mediated by selective promoter elements, we measured luciferase expression in glioma samples transduced with replication deficient adenoviral vectors. Finally, we incorporated the optimal promoters into a conditionally replicative adenoviral vector, CRAd-5/3, and examined the cytopathic effect in vitro. RESULTS The survivin promoter demonstrated the highest level of mRNA expression in primary tumor samples and cell lines. Transcriptional targeting was confirmed by infection of glioma cells with an adenovirus expression vector containing a surviving-driven luciferase reporter gene. Of the tested promoters, minimal level of survivin activity was detected in normal human liver and brain. A novel vector, CRAd-survivin5/3, with E1a under the control of the survivin promoter, exhibited enhanced cytopathic effect in vitro. CONCLUSIONS Our data demonstrate that the survivin promoter element is very active in glioma samples and has low activity in normal human brain and liver. A novel oncolytic virus, CRAd-survivin-5/3, was effective against a panel of glioma cell lines in vitro. Our results suggest that employing the survivin promoter element in the context of CRAd-5/3 may present a new opportunity for the development of glioma specific oncolytic vectors.
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Affiliation(s)
- Ilya V Ulasov
- Division of Neurosurgery, The University of Chicago, Chicago, Illinois 60637, USA
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Affiliation(s)
- Leisha A Emens
- The Sidney Kimmel Comprehensive Cancer Center, Bunting-Blaustein Cancer Research Building, 1650 Orleans Street, Room 4M90, Baltimore, Maryland 21231-1000, USA.
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Thomas S, Shah G. Calcitonin induces apoptosis resistance in prostate cancer cell lines against cytotoxic drugs via the Akt/Survivin pathway. Cancer Biol Ther 2014; 4:1226-33. [PMID: 16222118 DOI: 10.4161/cbt.4.11.2093] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [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] [Indexed: 11/19/2022] Open
Abstract
The expression of calcitonin (CT) and CT-receptor (CTR) mRNA in primary prostate tumors increase with tumor progression. Since advanced prostate tumors display chemoresistance, we tested a hypothesis that CT increases apoptosis resistance of prostate cells against cytotoxic drugs. We examined the effect of CT on etoposide-induced apoptosis in PC-3M, LNCaP and NRP-152 cell lines. The cytoprotective actions of CT were then tested on paclitaxel-, dexamethasone- and selenite-induced apoptosis. We also examined cytotoxic actions of these drugs in CTR-silenced PC-3M cells. Since the role of Akt and inhibitors of apoptosis proteins (IAPs) in chemoresistance of advanced prostate cancers has been established, we tested the effect of CT on phospho-Akt and survivin levels in PC-3M cells. Finally, the cytoprotective effect of CT on PC-3M cells was tested in the presence of PI3K inhibitors such as LY 294002 and wortmannin. Acutely added CT significantly attenuated apoptosis of PC cell lines in response to etoposide, dexamethasone and selenite treatment, but could not reduce paclitaxel-induced apoptosis. CT potently stimulated phospho-Akt and survivin synthesis in PC-3M cells in a sustained manner, and LY 294002 attenuated CT-induced survivin synthesis as well as apoptosis resistance. These results suggest that CT induces chemoresistance to etoposide, dexamethasone and selenite but not to paclitaxel in prostate cells. Cytoprotective action of CT is mediated by CTR-induced activation of Akt-survivin pathway. Since CT/CTR expression in prostate cancers increases with tumor progression, the suppression of "CT System" may enhance the effectiveness of chemotherapy.
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Affiliation(s)
- Shibu Thomas
- University of Louisiana School of Pharmacy, College of Health Sciences, Monroe, Louisiana 71209, USA
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Li L, Zhang XL, Wang P, Liu Y. [Expression of survivin in ameloblastoma and its clinical significance]. Shanghai Kou Qiang Yi Xue 2014; 23:481-484. [PMID: 25338803] [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: 06/04/2023]
Abstract
PURPOSE To study the expression of survivin in ameloblastoma and its clinical significance. METHODS Immunohistochemical S-P method was used to detect the expression of survivin in clinical significance. Seventy cases of ameloblastoma (AB), 15 cases of malignant AB and 30 cases of normal oral mucosa were included. SPLUS13.0 software package was used for statistical analysis. RESULTS Survivin was strongly expressed in AB and malignant AB. The positive rate in malignant AB was up to 100%, followed by 82.9% in AB. Survivin was weakly expressed in normal oral mucosa, with a positive rate of 30%. The difference among the 3 groups was significant (P<0.05). CONCLUSIONS Survivin is overexpressed in AB compared to normal oral mucosa. Survivin is involved in the development and progress of AB, and the ability of invasion and canceration of AB is correlated with the overexpression of survivin.
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Affiliation(s)
- Le Li
- Department of Stomatology, Affiliated Hospital of Chengde Medical College. Chengde 067000, Hebei Province, China.E-mail:
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22
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Skender B, Hofmanová J, Slavík J, Jelínková I, Machala M, Moyer MP, Kozubík A, Hyršlová Vaculová A. DHA-mediated enhancement of TRAIL-induced apoptosis in colon cancer cells is associated with engagement of mitochondria and specific alterations in sphingolipid metabolism. Biochim Biophys Acta Mol Cell Biol Lipids 2014; 1841:1308-17. [PMID: 24953781 DOI: 10.1016/j.bbalip.2014.06.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 05/01/2014] [Accepted: 06/09/2014] [Indexed: 12/25/2022]
Abstract
Docosahexaenoic acid (DHA), an n-3 polyunsaturated fatty acid present in fish oil, may exert cytotoxic and/or cytostatic effects on colon cancer cells when applied individually or in combination with some anticancer drugs. Here we demonstrate a selective ability of subtoxic doses of DHA to enhance antiproliferative and apoptotic effects of clinically useful cytokine TRAIL (tumor necrosis factor-related apoptosis inducing ligand) in cancer but not normal human colon cells. DHA-mediated stimulation of TRAIL-induced apoptosis was associated with extensive engagement of mitochondrial pathway (Bax/Bak activation, drop of mitochondrial membrane potential, cytochrome c release), activation of endoplasmic reticulum stress response (CHOP upregulation, changes in PERK level), decrease of cellular inhibitor of apoptosis protein (XIAP, cIAP1) levels and significant changes in sphingolipid metabolism (intracellular levels of ceramides, hexosyl ceramides, sphingomyelines, sphingosines; HPLC/MS/MS). Interestingly, we found significant differences in representation of various classes of ceramides (especially C16:0, C24:1) between the cancer and normal colon cells treated with DHA and TRAIL, and suggested their potential role in the regulation of the cell response to the drug combination. These study outcomes highlight the potential of DHA for a new combination therapy with TRAIL for selective elimination of colon cancer cells via simultaneous targeting of multiple steps in apoptotic pathways.
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Affiliation(s)
- Belma Skender
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Brno, Czech Republic; Department of Animal Physiology and Immunology, Institute of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Jiřina Hofmanová
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Brno, Czech Republic; Department of Animal Physiology and Immunology, Institute of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Josef Slavík
- Department of Toxicology, Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
| | - Iva Jelínková
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Brno, Czech Republic; Department of Animal Physiology and Immunology, Institute of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Miroslav Machala
- Department of Toxicology, Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
| | | | - Alois Kozubík
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Brno, Czech Republic; Department of Animal Physiology and Immunology, Institute of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Alena Hyršlová Vaculová
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Brno, Czech Republic.
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Liu S, Liang X, Bao C. [Effects of survivin gene silencing by small interfering RNA on apoptosis of oral squamous cell carcinoma]. Hua Xi Kou Qiang Yi Xue Za Zhi 2013; 31:345-352. [PMID: 23991568] [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: 06/02/2023]
Abstract
OBJECTIVE To apply the small interfering RNA (siRNA) targeting survivin to inhibit expression of survivin gene in HSC-3 oral squamous cell carcinoma and to increase the apoptosis of HSC-3 cells. METHODS siRNA was synthesized and transfected into oral squamous cell carcinoma HSC-3 cells. Compared with negative control group and blank control group, semi-quantitive reverse transcription-polymerase chain reaction (RT-PCR) was used to detect survivin mRNA. Cellular viability was detected by MTT and HSC-3 cell apoptosis was determined by tunnel and flow cytometry. RESULTS Expression of survivin mRNA was decreased significantly in siRNA group compared with negative control group and blank control group. Cellular viability was not affected in negative control group and blank control group, but cellular viability in siRNA group was significantly decreased. As to the cellular apoptosis rate, the transfected group (24.99% +/- 1.33%) was significantly higher than negative control group (1.24% +/- 0.13%) and blank control group (0.10% +/- 0.02%). CONCLUSION Survivin gene silenced by siRNA might promote apoptosis of oral squamous cell carcinoma. Survivin siRNA gene therapy would become a new target point for oral squamous cell carcinoma.
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Affiliation(s)
- Shifeng Liu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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Allen ML, Walker WB. Saliva of Lygus lineolaris digests double stranded ribonucleic acids. J Insect Physiol 2012; 58:391-6. [PMID: 22226823 DOI: 10.1016/j.jinsphys.2011.12.014] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 12/17/2011] [Accepted: 12/21/2011] [Indexed: 05/24/2023]
Abstract
The prospects for development of highly specific pesticides based on double stranded ribonucleic acid have been a recent focus of scientific research. Creative applications have been proposed and demonstrated. However, not all insects are sensitive to double stranded RNA (dsRNA) gene knockdown effects; applications in the order Lepidoptera, for example, have met with varied success. Gene knockdown has been demonstrated in several species in the order Hemiptera. In our laboratory, knockdown experiments relied on microinjection of dsRNA into the hemocoel of the tarnished plant bug, Lygus lineolaris. Subsequent experiments delivering dsRNA to insects by feeding were repeatedly unsuccessful in demonstrating knockdown, and a hypothesis was formulated that the dsRNA was digested and degraded by the insect prior to contact with the insect cells. Exposure of dsRNA to insect saliva, insect salivary glands, and insect hemolymph was compared with commercial RNAase III. The saliva of L. lineolaris was found to rapidly digest double stranded RNA. RNAase inhibitor did not affect the activity but heat treatment slowed enzymatic activity.
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Affiliation(s)
- Margaret L Allen
- U. S. Department of Agriculture, Agricultural Research Service, Biological Control of Pests Research Unit, 59 Lee Road, Stoneville, MS 38776,
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Jin Y, Shao CK, Tang LY, Yang JY, Huang YH, Li JP. [Protein expression and significance of survivin and NF-κB in hepatocellular carcinoma]. Zhonghua Yi Xue Za Zhi 2011; 91:2542-2545. [PMID: 22321881] [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: 05/31/2023]
Abstract
OBJECTIVE To detect the protein expressions of survivin and NF (nuclear factor)-κB and investigate their roles in the pathogenesis of hepatocellular carcinoma. METHODS A total of 206 cases were diagnosed as hepatocellular carcinoma, and immunohistochemical technique was used to detect the protein expressions of survivin and NF-κB in hepatocellular carcinoma samples and normal liver tissue specimens. Statistical analysis was performed to analyze the relationship of protein expressions of survivin and NF-κB and clinico-pathological parameters and prognosis. RESULTS The expression of survivin was predominant in cytoplasm while that of NF-κB was in nucleolus. The positive rate of survivin protein was 78.2% in hepatocellular carcinoma and that of NF-κB was 81.1%. The positive rate of survivin and NF-κB was higher in hepatocellular carcinoma than that in benign hepatic tissue (11.7% and 15.5%). Significant differences existed in the expressions of survivin and NF-κB between hepatocellular carcinoma and normal hepatic tissue (P < 0.01). The expression of survivin was related to amicula invasion, portal vein tumor thrombus, lymph node metastasis and clinical stage in hepatocellular carcinoma (P < 0.01). The expression of NF-κB was also related to portal vein tumor thrombus, lymph node metastasis and clinical stage in hepatocellular carcinoma (P < 0.05). There was an obviously positive correlation between the expressions of survivin and NF-κB in hepatocellular carcinoma (r = 0.52, P < 0.01). Survival rate of patients for 1, 3 year of positive expression of survivin and NF-κB in hepatocellular carcinoma was 70.3% and 30.4%, respectively. And it was obviously lower than that of those of negative expression (88.5% and 61.5%). There was significant difference in the expressions of survivin and NF-κB between positive and negative subjects in 1, 3 year (P < 0.05). CONCLUSION Protein expressions of survivin and NF-κB are higher in hepatocellular carcinoma. And they play mutually promoting roles in the development of hepatocellular carcinoma. Thus, an important prognostic indicator may be adopted.
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Affiliation(s)
- Yi Jin
- Department of Pathology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
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Wang Q, Chen Z, Diao X, Huang S. Induction of autophagy-dependent apoptosis by the survivin suppressant YM155 in prostate cancer cells. Cancer Lett 2011; 302:29-36. [PMID: 21220185 DOI: 10.1016/j.canlet.2010.12.007] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Revised: 12/08/2010] [Accepted: 12/10/2010] [Indexed: 10/18/2022]
Abstract
In this study, we demonstrated that YM155, a novel survivin suppressant, induced both apoptosis, and autophagy that was shown by conversion of cytosolic-associated protein light chain 3 (LC3I) into autophagosome-associated form (LC3II) and a punctate fluorescence pattern of an ectopic GFP-LC3 protein. The lysosomal inhibitor chloroquine further accumulated YM155-induced LC3II, indicating an increase of autophagic flux. Ectopic expression of survivin significantly attenuated YM155-induced apoptosis and autophagy, whereas survivin siRNA induced autophagy. Furthermore, inhibition of either early or late events of autophagy attenuated YM155-induced apoptosis, demonstrating that induction of autophagy proceeds apoptosis. In conclusion, suppression of survivin by YM155 induces autophagy-dependent apoptosis, and YM155-induced autophagy plays a pro-apoptotic role thereby unveiling a novel mechanism of YM155 in prostate cancer cells.
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Affiliation(s)
- Qinwen Wang
- Research Institute of Oncology, People's Liberty Army, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
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Liu C, Wang Y, Xie S, Zhou Y, Ren X, Li X, Cai Y. Liquiritigenin induces mitochondria-mediated apoptosis via cytochrome c release and caspases activation in heLa Cells. Phytother Res 2011; 25:277-83. [PMID: 20658471 DOI: 10.1002/ptr.3259] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Changwei Liu
- Department of Nutrition and Food Hygiene, Nanjing Medical University, 140 Hanzhong Road, Nanjing 210029, PR China
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Huang Y, Jin H, Liu Y, Zhou J, Ding J, Cheng KW, Yu Y, Feng Y. FSH inhibits ovarian cancer cell apoptosis by up-regulating survivin and down-regulating PDCD6 and DR5. Endocr Relat Cancer 2011; 18:13-26. [PMID: 20943720 DOI: 10.1677/erc-09-0308] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [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: 11/27/2022]
Abstract
Ovarian epithelial cancer is the leading cause of death among gynecological malignancies. FSH may increase the risk of ovarian malignancy and play an important role in ovarian carcinogenesis. Our previous studies showed that FSH increases the expression of VEGF through survivin. In this study, the function and mechanism of FSH in ovarian cancer were further explored. We found that FSH promoted proliferation and prevented apoptosis of ovarian cancer cells by activating survivin through the SAPK/JNK and PI3K/AKT pathways. FSH also down-regulated the expression of programmed cell death gene 6 (PDCD6) and death receptor 5 (DR5), two molecules required for induction of apoptosis. RNA interference was applied to knock down survivin and PDCD6 expression, and we found that the blockage of survivin reversed the effects of FSH on apoptosis and proliferation, whereas knock down of PDCD6 enhanced these effects. The expression of DR5, cyclin D1, and cyclin E correlated with survivin expression, but PDCD6 did not. Using immunohistochemical staining, we further showed that ovarian serous cystadenocarcinoma samples had higher expression of survivin than did benign ovarian cystadenoma and borderline cystadenoma samples (P<0.01). Furthermore, survivin expression in the ovarian serous cystadenocarcinoma specimens was correlated with disease stage (P<0.05). Our results suggest that FSH promotes ovarian cancer development by regulating the expression of survivin, PDCD6, and DR5. Greater understanding of the molecular mechanisms of FSH in ovarian epithelial carcinogenesis and development will ultimately help in the development of a novel targeted therapy for ovarian cancer.
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Affiliation(s)
- Yan Huang
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, 419 Fang Xie Road, Shanghai 200011, People's Republic of China
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Gerber JM, Qin L, Kowalski J, Smith BD, Griffin CA, Vala MS, Collector MI, Perkins B, Zahurak M, Matsui W, Gocke CD, Sharkis SJ, Levitsky HI, Jones RJ. Characterization of chronic myeloid leukemia stem cells. Am J Hematol 2011; 86:31-7. [PMID: 21132730 DOI: 10.1002/ajh.21915] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [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] [Indexed: 12/17/2022]
Abstract
Although tyrosine kinase inhibitors have redefined the care of chronic myeloid leukemia (CML), these agents have not proved curative, likely due to resistance of the leukemia stem cells (LSC). While a number of potential therapeutic targets have emerged in CML, their expression in the LSC remains largely unknown. We therefore isolated subsets of CD34(+) stem/progenitor cells from normal donors and from patients with chronic phase or blast crisis CML. These cell subsets were then characterized based on ability to engraft immunodeficient mice and expression of candidate therapeutic targets. The CD34(+)CD38(-) CML cell population with high aldehyde dehydrogenase (ALDH) activity was the most enriched for immunodeficient mouse engrafting capacity. The putative targets: PROTEINASE 3, SURVIVIN, and hTERT were expressed only at relatively low levels by the CD34(+)CD38(-)ALDH(high) CML cells, similar to the normal CD34(+)CD38(-)ALDH(high) cells and less than in the total CML CD34(+) cells. In fact, the highest expression of these antigens was in normal, unfractionated CD34(+) cells. In contrast, PRAME and WT1 were more highly expressed by all CML CD34(+) subsets than their normal counterparts. Thus, ALDH activity appears to enrich for CML stem cells, which display an expression profile that is distinct from normal stem/progenitor cells and even the CML progenitors. Indeed, expression of a putative target by the total CD34(+) population in CML does not guarantee expression by the LSC. These expression patterns suggest that PROTEINASE 3, SURVIVIN, and hTERT are not optimal therapeutic targets in CML stem cells; whereas PRAME and WT1 seem promising.
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MESH Headings
- ADP-ribosyl Cyclase 1/biosynthesis
- Adult
- Aged
- Aldehyde Dehydrogenase/biosynthesis
- Animals
- Antigens, CD34/biosynthesis
- Antigens, Neoplasm/biosynthesis
- Antigens, Neoplasm/genetics
- Female
- Hematopoietic Stem Cells/immunology
- Hematopoietic Stem Cells/metabolism
- Hematopoietic Stem Cells/pathology
- Humans
- Inhibitor of Apoptosis Proteins
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/immunology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Male
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Microtubule-Associated Proteins/biosynthesis
- Microtubule-Associated Proteins/genetics
- Middle Aged
- Myeloblastin/biosynthesis
- Myeloblastin/genetics
- Neoplasm Transplantation
- RNA, Messenger/biosynthesis
- Survivin
- Telomerase/biosynthesis
- Telomerase/genetics
- WT1 Proteins/biosynthesis
- WT1 Proteins/genetics
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Affiliation(s)
- Jonathan M Gerber
- Division of Hematology, Department of Medicine, The Johns Hopkins University School of Medicine and The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.
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Wang YH, Chen DJ, Yi TN, Liu XH. The relationship among human papilloma virus infection, survivin, and p53 gene in lung squamous carcinoma tissue. Saudi Med J 2010; 31:1331-1336. [PMID: 21135996] [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: 05/30/2023] Open
Abstract
OBJECTIVE To study the relationship between the infection of human papillomavirus (HPV) type 16, type 18, the expression of survivin, and the mutation of p53 gene in lung squamous carcinoma tissue for the research of pathogenesis of lung carcinoma. METHODS This study was carried out at the Laboratory of Molecular Biology, Xiangfan Central Hospital of Hubei Province, China from September 2008 to May 2010. Forty-five specimens of lung squamous carcinoma tissue confirmed by histopathology were the excisional specimens taken by the Thoracic Surgery of Xiangfan Central Hospital. Normal tissue, closely adjacent to the fresh carcinoma specimens, was used as the control group for p53 gene mutation analysis. Sixteen surgical excisional specimens of benign lung disease were used as a control group of non-carcinomatous diseases. Human papillomavirus DNA were detected by polymerase chain reaction (PCR), and we used the PCR-single-strand conformation polymorphism-ethidium bromide (PCR-SSCP-EB) method to detect the mutations of the p53 gene. The expression of the survivin gene was detected by immunohistochemistry methods. RESULTS Approximately 68.9% of 45 lung squamous carcinoma tissue had p53 gene mutations. The mutation rate of exon 5-8 p53 were 15.6%, 17.8%, 15.6% and 20%. Approximately 42.2% of lung squamous cell carcinoma samples were shown to be positive for HPV DNA expression and 62.2% were positive for survivin expression. There was an inverse correlation between the presence of HPV infections and mutations of p53 gene; and the mutations of p53 gene and expression of survivin had a positive relationship. CONCLUSION Mutation of p53 gene and HPV infection may facilitate each other in the generation of lung squamous cell carcinoma. Abnormal expression of the survivin gene may take part in the onset and progression of lung squamous cell carcinoma.
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Affiliation(s)
- Yue-Hua Wang
- Department of Oncology, Xiangfan Central Hospital of Hubei Province, China
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Deng JY, Sun D, Liu XY, Pan Y, Liang H. STAT-3 correlates with lymph node metastasis and cell survival in gastric cancer. World J Gastroenterol 2010. [PMID: 21072904 DOI: pmid/21072904] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
Abstract
AIM To investigate the correlation between gastric cancer growth and signal transducer and activator of transcription-3 (STAT3) expression. METHODS We assessed the expressions of STAT3, phosphor-STAT3 (pSTAT3), suppressor of cytokine signaling-1 (SOCS-1), survivin and Bcl-2 in gastric cancer patients after gastrectomy by immunohistochemical method. In addition, in situ hybridization was used to further demonstrate the mRNA expression of STAT3 in gastric cancer. RESULTS With the univariate analysis, expressions of STAT3, pSTAT3, SOCS-1, survivin and Bcl-2, the size of primary tumor and the lymph node metastasis were found to be associated with the overall survival (OS) of gastric cancer patients. However, only pSTAT3 expression and the lymph node metastasis were identified as the independent factors of OS of gastric cancer with multivariate analysis. STAT3 expression was correlated with the lymph node metastasis. There were positive correlations between expressions of STAT3, survivin, Bcl-2 and pSTAT3 in gastric cancer, whereas there was negative correlation between STAT3 expression and SOCS-1 expression in gastric cancer. CONCLUSION STAT3 can transform into pSTAT3 to promote the survival and inhibit the apoptosis of gastric cancer cells. SOCS-1 might be the valid molecular antagonist to inhibit the STAT3 expression in gastric cancer.
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Affiliation(s)
- Jing-Yu Deng
- Department of Gastric Oncology Division, Tianjin Medical University Cancer Hospital and City Key Laboratory of Tianjin Cancer Center, Tianjin 300060, China.
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Wang H, Holloway MP, Ma L, Cooper ZA, Riolo M, Samkari A, Elenitoba-Johnson KSJ, Chin YE, Altura RA. Acetylation directs survivin nuclear localization to repress STAT3 oncogenic activity. J Biol Chem 2010; 285:36129-37. [PMID: 20826784 PMCID: PMC2975235 DOI: 10.1074/jbc.m110.152777] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [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] [Received: 06/08/2010] [Revised: 09/07/2010] [Indexed: 02/05/2023] Open
Abstract
The multiple functions of the oncofetal protein survivin are dependent on its selective expression patterns within immunochemically distinct subcellular pools. The mechanism by which survivin localizes to these compartments, however, is only partly understood. Here we show that nuclear accumulation of survivin is promoted by CREB-binding protein (CBP)-dependent acetylation on lysine 129 (129K, Lys-129). We demonstrate a mechanism by which survivin acetylation at this position results in its homodimerization, while deacetylation promotes the formation of survivin monomers that heterodimerize with CRM1 and facilitate its nuclear export. Using proteomic analysis, we identified the oncogenic transcription factor STAT3 as a binding partner of nuclear survivin. We show that acetylated survivin binds to the N-terminal transcriptional activation domain of the STAT3 dimer and represses STAT3 transactivation of target gene promoters. Using multiplex PCR and DNA sequencing, we identified a single-nucleotide polymorphism (A → G) at Lys-129 that exists as a homozygous mutation in a neuroblastoma cell line and corresponds with a defect in survivin nuclear localization. Our results demonstrate that the dynamic equilibrium between survivin acetylation and deacetylation at amino acid 129 determines its interaction with CRM1, its subsequent subcellular localization, and its ability to inhibit STAT3 transactivation, providing a potential route for therapeutic intervention in STAT3-dependent tumors.
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Affiliation(s)
| | | | - Li Ma
- Surgery, Brown University and Rhode Island Hospital, Providence, Rhode Island 02903 and
| | | | | | | | | | - Y. Eugene Chin
- Surgery, Brown University and Rhode Island Hospital, Providence, Rhode Island 02903 and
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Halasova E, Adamkov M, Matakova T, Kavcova E, Poliacek I, Singliar A. Lung cancer incidence and survival in chromium exposed individuals with respect to expression of anti-apoptotic protein survivin and tumor suppressor P53 protein. Eur J Med Res 2010; 15 Suppl 2:55-9. [PMID: 21147621 PMCID: PMC4360335 DOI: 10.1186/2047-783x-15-s2-55] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE Workers chronically exposed to hexavalent chromium have elevated risk of lung cancer. Our study investigates the incidence of lung cancer types, age at onset of the disease, and survival time among chromium exposed workers with respect to the expression of anti-apoptotic p53 and pro-apoptotic survivin proteins. MATERIAL AND METHODS 67 chromium exposed workers and 104 male controls diagnosed with lung cancer were analyzed. The mean exposure time among workers was 16.7 ±10.0(SD) years (range 1- 41 years). To investigate the possible regulation of survivin by p53 we examined the expression of both proteins using immohistochemical visualization. RESULTS Chromium exposure significantly decreases the age of onset of the disease by 3.5 years (62.2 ±9.1 in the exposed group vs. 65.7 ±10.5 years in controls; P=0.018). Small cell lung carcinoma (SCLC) amounted for 25.4% of all cases in chromium exposed workers and for 16.3% in non-exposed individuals. The mean survival time in the exposed group was 9.0 ±12.7 vs. 12.1 ±21.9 months in controls, but this difference was not significant. Survivin was predominantly expressed in both cell nucleus and cytoplasm, whereas p53 was expressed in the nucleus. There was a negative correlation between survivin and p53 expression. A decreased intensity of expression and fewer cells positive for survivin was detected in SCLC compared with other types of lung cancer. p53 was expressed in 94.1% and survivin in 79.6% of the samples analyzed. CONCLUSION The study calls attention to decreased expression of survivin, as opposed to p53, in small cell lung carcinoma.
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Affiliation(s)
- Erika Halasova
- Institute of Medical Biology, Comenius University in Bratislava, Martin, Slovakia.
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Li Y, Tan BB, Fan LQ, Zhao Q, Liu Y, Wang D. Expression of COX-2, survivin in regional lymph node metastases of gastric carcinoma and the correlation with prognosis. Hepatogastroenterology 2010; 57:1435-1441. [PMID: 21443099] [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: 05/30/2023]
Abstract
BACKGROUND/AIMS Little is known about the expression and significance of the proteins in regional lymph node metastases (LNMs) of gastric carcinoma (GC). In present study we intend to evaluate the expression of COX-2 and Survivin in primary tumors (PT) and LNMs of GC, keeping track of the correlation between the clinicopathologic factors, the tumor angiogenesis, patients' survival and prognosis. METHODOLOGY Surgical specimens were obtained and paired from 65 patients with advanced GC. The gastric operational pieces have been examined with usual histological, histochemical and immunohistochemical staining. Then relationship and significance of these data were analyzed. RESULTS Expression of COX-2 was higher in LNMs than that in PT p < 0.05 with positive correlativity of COX-2 between PT and LNMs p < 0.01 and positive correlativity also existed between COX-2 and Survivin in PT p < 0.01. The patients with strong expression of COX-2 had lower cumulative survival rate than those with weaker COX-2 expressed (p < 0.01). In LNMs, strong expression of COX-2 was an independent prognostic factor for GC in PT and LNMs while strong expression of Survivin was not that case. CONCLUSIONS The expression of COX-2 in PT and LNMs explained for the heterogeneity of GC and it has a tight correlation with GC cell's apoptosis. Strong expression of COX-2 in LNMs was associated with poor prognosis for patients with GC.
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Affiliation(s)
- Yong Li
- Department of General Surgery, the Fourth Affiliated Hospital, Hebei Medical University Shijiazhuang, China.
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Abstract
Survivin (BIRC5) is a cell survival gene that is overexpressed in endometrial cancer and has been implicated to have a physiological role in normal endometrial function. To determine whether survivin gene expression is regulated by reproductive steroid hormones in the human endometrium, RNA was prepared from normal cycling women in the proliferative and secretory phases of the menstrual cycle. RNA was also isolated from 21 endometrial biopsies from premenopausal women at baseline and following 3 months of treatment with depot medroxyprogesterone acetate. Finally, RNA was isolated from endometrial biopsies from ten healthy postmenopausal women participating in a clinical trial of estrogen replacement therapy at baseline and following 6 months of treatment with conjugated equine estrogen. Quantitative RT-PCR analysis was used to determine survivin, insulin-like growth factor binding protein 1 (IGFBP1), Ki67, and IGF1 gene expression levels. Survivin gene expression was highest in the proliferative phase of the menstrual cycle and showed a statistically significant 4-fold increase in expression following chronic treatment with estrogens; this was strongly correlated with increased Ki67, a marker of proliferation. Survivin gene expression decreased 4.6-fold following chronic progestin treatment in the human endometrium. These data suggest that survivin transcript is regulated by estrogens and progestins in the disease-free human endometrium. The data also suggest that survivin transcript may be used as a biomarker of estrogen and progestin treatment efficacy, but validation studies must be conducted to support this conclusion.
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Affiliation(s)
- Nancy H Nabilsi
- Department of Integrative Biology and Pharmacology, University of Texas Health Science Center Houston, 6431 Fannin Street, MSB 5.132A, Houston, Texas 77030, USA
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Li ZX, Jia XH, Li JC, Han L. [Effects of bone marrow stromal cells and VLA-4 antibody on apoptosis of childhood leukemia cells]. Zhongguo Dang Dai Er Ke Za Zhi 2010; 12:897-901. [PMID: 21083987] [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: 05/30/2023]
Abstract
OBJECTIVE To study the protective effect of bone marrow stromal cells (BMSCs) upon childhood leukemia cells and the influence of VLA-4 antibody in vitro on leukemia cell apoptosis. METHODS BMSCs from children with acute leukemia-were isolated by human lymphocyte separation medium. BMSCs (adherent) and leukemia cells (suspended) were cultured in vitro. This study included four groups: leukemia cells alone (control), leukemia cells+BMSCs, leukemia cells+BMSCs supernatant and leukemia cells+BMSCs+VLA-4 antibody. The apoptosis rate of leukemia cells in the four groups was determined by Annexin Ⅴ-FITC double-labeled flow cytometry. The expression of survivin and bcl-2 genes in leukemia cells was ascertained by RT-PCR. RESULTS The apoptosis rate of leukemia cells in the leukemia cells+BMSCs and the leukemia cells+BMSCs supernatant groups was lower than that in the control group (P<0.05). Compared with the leukemia cells+BMSCs and the leukemia cells+BMSCs supernatant groups, the apoptosis rate of leukemia cells in the VLA-4 antibody group increased significantly (P<0.05). In the VLA-4 antibody group, the apoptosis rate of leukemia cells increased with prolonged culture time. There were significant differences in the apoptosis rate between 12 hrs and 24 hrs after VLA-4 antibody treatment (P<0.01). The expression of survivin and bcl-2 genes in leukemia cells from the VLA-4 antibody groups was reduced compared with that from the leukemia cells+BMSCs and the leukemia cells+BMSCs supernatant groups (P<0.05). CONCLUSIONS BMSCs play protective roles on leukemia cells. VLA-4 antibody can block the adhesion between BMSCs and leukemia cells and promote leukemia cell apoptosis.
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Affiliation(s)
- Zhong-Xia Li
- Department of Pediatrics, Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong 256603, China
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Ongürü O, Karslioglu Y, Ozcan A, Celik E. Anti-apoptotic and growth-promoting markers in adult medulloblastomas. Clin Neuropathol 2010; 29:384-389. [PMID: 21073843] [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: 05/30/2023] Open
Abstract
AIM the aim of this study was to investigate the pathologic features, proliferation potential and expression of some anti-apoptotic and growth-promoting markers in adult medulloblastomas. METHOD we analyzed the immunohistochemical expression of survivin, c-KIT, Bcl-2, fascin, p-53 and Ki-67 in 18 adult medulloblastomas (> 16 years of age). RESULTS study included 14 males and 4 females (mean age: 22.9 ± 8.2). 14 cases were classical, 2 desmoplastic/nodular and 2 large cell medulloblastomas. Moderate-to-high nuclear survivin expression was observed with high percentages (55 - 100%) in all medulloblastomas while Bcl-2 was mildly positive in only 1 case. Interestingly, mild-to-moderate cytoplasmic c-KIT expression was demonstrated in 16 cases (89%) without membranous accentuation. Fascin expression was observed in 13 medulloblastomas (72%), 9 of which showing moderate to high immunoreactivity. Mild p53 expression was present in only 4 cases (22%). Mean Ki-67 index was 20.6% (range 8 - 55%). CONCLUSION frequent nuclear survivin expression implies the predominance of anti-apoptotic factors in pathogenesis of adult medulloblastomas. It may also be a potential therapeutic target for adult medulloblastomas. Although Blc-2 immunoreactivity was previously reported in approximately 30% in medulloblastomas, we have observed that it is rarely expressed in the present series of adult medulloblastomas. To our knowledge, this is the first study evaluating fascin expression in medulloblastomas. Its presence may be related to the neuronal differentiation. Mild-to-moderate cytoplasmic c-KIT immunoreactivity without membranous staining in adult medulloblastomas may support the previous studies reporting low level of c-KIT protein expression with lack of activating mutations in medulloblastomas. It seems p53 is rarely involved in the course of develepment of adult medulloblastomas.
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Affiliation(s)
- O Ongürü
- Department of Pathology, Gülhane Military Medical Academy, Ankara, Turkey.
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Porebska I, Sobańska E, Kosacka M, Jankowska R. Apoptotic regulators: P53 and survivin expression in non-small cell lung cancer. Cancer Genomics Proteomics 2010; 7:331-335. [PMID: 21156966] [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: 05/30/2023] Open
Abstract
BACKGROUND Survivin and p53 are proteins that take part in cell cycle and apoptosis regulation. The biological function of survivin is essential for its oncogenic potential. The p53 protein is known to be a guardian of the genome and alterations in its structure enhance resistance to apoptosis. The aim of this study was to detect survivin and p53 expression in 74 non-small cell lung cancer in relation to basic clinicopathological data including the two-year prognosis. PATIENTS AND METHODS A total of 74 patients with non-small cell lung cancer were recruited into the study. Marker presence was revealed using immunohistochemical methods on paraffin-embedded tissue. RESULTS The presence of p53 was visible in 52.7% of cases and its expression did not correlate with clinicopathological data. Survivin immunoreactivity was detected in 52.7% of all study cases and was statistically more often found in lung adenocarcinomas than in squamous cell subtype of lung cancer (67% and 37% respectively, p=0.03). Larger tumours, cancer with lymph node metastases and more advanced tumours according to TNM status showed higher incidence of survivin expression, but differences did not reach statistical significance. The survivin immunoreactivity did not correlate with the two-year survival. CONCLUSION P53 protein expression did not appear to be a clinically important tumour marker. The clearly visible trend to more frequent survivin presence in more advanced non-small cell lung tumours needs further evaluation. The statistically significant difference in survivin immunoreactivity between two major pathological types of non-small cell lung cancer may be important for better selection of patients for specific biological therapy based on apoptosis regulation.
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Affiliation(s)
- Irena Porebska
- Department of Pulmonology and Lung Cancer, Wroclaw University of Medicine, ul. Grabiszyńska 105, Wrocław, Poland.
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Abstract
Survivin variants specific real time quantitative RT-PCR was developed to analyze their expression in 53 paired cancer and para-cancerous tissues, and the expression of the wild-type survivin protein was detected by immunohistochemistry. The results showed that survivin mRNA and protein were expressed in gastric cancer and para-cancerous tissues. The survivin-2B was dominantly expressed in para-cancerous tissues, whereas the survivin-DeltaEx3 was more frequently detected in cancer tissues. The positive rate of survivin-2a was 100% in both cancer and para-cancerous tissues, but its relative transcript expression level was not significantly increased in cancer tissues in comparison with para-cancerous tissues. The correlation analysis revealed that the expression of survivin-2a mRNA was significantly associated with that of total survivin (r (s)=0.4178, P=0.0018), whereas inversely to that of survivin-DeltaEX3 (r (s)=-0.4506, P=0.0007). It was suggested that survivin-2a may act as an antagonist of survivin-DeltaEX3. The balance between antiapoptotic survivin iso-forms and nonantiapoptotic ones may play an important role in tumorigenesis and tumor progression. Promising value is hinted to analyze survivin and its variants in tumor early diagnosis and distinguishing malignant tumors from benign ones.
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Affiliation(s)
- Zhengjiang Cheng
- Department of Clinical Laboratory Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Wang Y, Zhu Z, Zeng F, Wang L, Wu Y, Xia W, Xing S. Expression and prognostic significance of survivin in the progression of bladder transitional cell cancer. ACTA ACUST UNITED AC 2010; 27:444-7. [PMID: 17828507 DOI: 10.1007/s11596-007-0424-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2006] [Indexed: 11/30/2022]
Abstract
The expression of survivin, a member of inhibitor of apoptosis (IAP) family, was examined in bladder transitional cell cancer (BTCC) tissue and adjacent normal tissues to examine its clinical implication in the development of BTCC. Thirty specimens of bladder cancer were detected for the expression of survivin by using immunohistochemistry and real-time quantitative reverse transcription polymerase chain reaction (RT-QPCR) in BTCC tissue and adjacent normal tissues. Our results showed that the positive rate of survivin immunostaining specimen were 0 and 60% (18/30) in the adjacent normal tissues, bladder cancer, respectively. The-DeltaDeltaCT value of survivin in bladder cancer tissue was 10.2829 (9.0034-11.5624) times that in the adjacent normal tissues. The expressions of survivin were correlated with the pathological grades of tumor and clinical stages. It is concluded that there was only weak expression of survivin mRNA in the adjacent normal tissues, but the expression of survivin mRNA in bladder cancer tissue was much higher than that in the adjacent normal tissues and the expression of survivin was correlated with pathological grades and clinical stages of tumor.
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Affiliation(s)
- Yanbo Wang
- Department of Urology, Union Hospital, Tongji Medical College Huazhong University of Science and Technology, Wuhan 430022, China.
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Marioni G, D'Alessandro E, Bertolin A, Staffieri A. Survivin multifaceted activity in head and neck carcinoma: current evidence and future therapeutic challenges. Acta Otolaryngol 2010; 130:4-9. [PMID: 19322702 DOI: 10.3109/00016480902856588] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [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: 11/13/2022]
Abstract
CONCLUSIONS Survivin expression should be studied as a potential hallmark of higher risk oral, oropharyngeal and laryngeal squamous cell carcinomas (SCCs) to develop loco-regional recurrences. These outcomes could have a significant impact on both the treatment modalities and the intensity of post-treatment follow-up. Further investigation is necessary before considering elective neck dissection in patients with laryngeal SCC with high survivin expression. OBJECTIVES Functioning simultaneously at cell division and apoptosis inhibition, survivin, a member of the inhibitor of apoptosis proteins family, plays a pivotal role in determining cell survival. Significant over-expression of survivin has been demonstrated in most human malignancies and correlated with more aggressive forms. This review focuses on the attempts to translate survivin biologic properties toward both a diagnostic/prognostic tool and a novel therapeutic target in head and neck SCC (HNSCC). MATERIALS AND METHODS An exhaustive review of literature was performed to investigate available evidence about survivin expression, biological role and therapeutic potential in HNSCC. RESULTS Multiple evidence indicates that, in HNSCC cell lines, survivin inhibition by gene therapy and by small molecule inhibitors significantly increases the anti-tumour activity of several cytotoxic and other targeted therapies.
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MESH Headings
- Animals
- Antineoplastic Agents/pharmacology
- Apoptosis/drug effects
- Biomarkers, Tumor/antagonists & inhibitors
- Biomarkers, Tumor/genetics
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/pathology
- Carcinoma, Squamous Cell/therapy
- Cell Line, Tumor
- Combined Modality Therapy
- Gene Expression Regulation, Neoplastic/genetics
- Gene Transfer Techniques
- Genetic Therapy
- Humans
- Inhibitor of Apoptosis Proteins
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Microtubule-Associated Proteins/antagonists & inhibitors
- Microtubule-Associated Proteins/genetics
- Neck Dissection
- Neoplasm Recurrence, Local/genetics
- Neoplasm Recurrence, Local/pathology
- Neoplasm Recurrence, Local/therapy
- Oligonucleotides, Antisense/therapeutic use
- Otorhinolaryngologic Neoplasms/genetics
- Otorhinolaryngologic Neoplasms/pathology
- Otorhinolaryngologic Neoplasms/therapy
- Protein Isoforms/genetics
- RNA, Messenger/genetics
- Survivin
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Affiliation(s)
- Gino Marioni
- Department of Medical and Surgical Specialties, Section of Otolaryngology, University of Padova, Padova, Italy.
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Abstract
For proper partitioning of chromosomes in mitosis, the chromosomal passenger complex (CPC) including Aurora B and survivin must be localized at the center of paired kinetochores, at the site called the inner centromere. It is largely unknown what defines the inner centromere and how the CPC is targeted to this site. Here, we show that the phosphorylation of histone H3-threonine 3 (H3-pT3) mediated by Haspin cooperates with Bub1-mediated histone 2A-serine 121 (H2A-S121) phosphorylation in targeting the CPC to the inner centromere in fission yeast and human cells. H3-pT3 promotes nucleosome binding of survivin, whereas phosphorylated H2A-S121 facilitates the binding of shugoshin, the centromeric CPC adaptor. Haspin colocalizes with cohesin by associating with Pds5, whereas Bub1 localizes at kinetochores. Thus, the inner centromere is defined by intersection of two histone kinases.
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Affiliation(s)
- Yuya Yamagishi
- Laboratory of Chromosome Dynamics, Institute of Molecular and Cellular Biosciences, University of Tokyo, Yayoi, Tokyo 113-0032, Japan
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Harnack U, Johnen H, Pecher G. IL-1 receptor antagonist anakinra enhances tumour growth inhibition in mice receiving peptide vaccination and beta-(1-3),(1-6)-D-glucan. Anticancer Res 2010; 30:3959-3965. [PMID: 21036709] [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: 05/30/2023]
Abstract
BACKGROUND Immunotherapy of cancer by vaccination is hampered by tumour-mediated immune suppression, to which pro-inflammatory cytokines such as interleukin-1 (IL-1) and IL-6 contribute. In mouse models, IL-1-receptor antagonist (IL-1 Ra) diminished inflammation and tumour growth when administered during or shortly after tumour inoculation. MATERIALS AND METHODS The capacity of IL-1 Ra anakinra to reduce IL-1-induced production of IL-6 in order to improve the efficacy of a subsequent booster vaccination with survivin-derived peptides and soluble β-glucan as adjuvant was tested in colon-26 adenocarcinoma-bearing Balb/c-mice. RESULTS Bolus administration of anakinra into non-immunized mice with macroscopic tumour significantly lowered serum levels of IL-6 without inhibiting tumour growth. When administered to pre-immunized mice bearing a palpable tumour, IL-1 Ra enhanced growth inhibition of a subsequent booster vaccination, although serum-IL-6 was not reduced and the number of IFN-γ-producing splenic CD8(+) T-cells was not increased. CONCLUSION Anakinra contributes to growth-inhibition of small tumours, presumably by blocking IL-1 as tumour growth-promoting factor rather than by facilitating an enhanced CTL response.
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Affiliation(s)
- Ulf Harnack
- Medical Clinic of Oncology and Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
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Liu JL, Wang Y, Jiang J, Kong R, Yang YM, Ji HF, Shi YZ. Inhibition of survivin expression and mechanisms of reversing drug-resistance of human lung adenocarcinoma cells by siRNA. Chin Med J (Engl) 2010; 123:2901-2907. [PMID: 21034604] [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: 05/30/2023] Open
Abstract
BACKGROUND Survivin, a member of the inhibitor of apoptosis protein (IAP) family, overexpresses in tumor cells and not expresses in terminally differentiated adult tissues. This study aimed to investigate the effects of survivin-specific siRNA on cell proliferation, apoptosis and chemosensitivity to cisplatin in vitro and in vivo and explore the mechanisms about decreasing expression of survivin in reversing cancer cells resistance to chemotherapeutic drug. METHODS Survivin-specific siRNA was transfected into A549/DDP cells. The expression of survivin and lung resistance-related protein (LRP) mRNA levels were determined by RT-PCR, chemosensitivity of A549/DDP (cisplatin) cells to cisplatin was determined by MTT assay, and apoptosis and cell cycle were determined by flow cytometry (FCM). The protein expression levels of survivin, LRP, cyclin-D(1), caspase-3 and bcl-2 were determined by Western blotting analyses. The effect of survivin siRNA inhibition on tumor growth was studied in athymic nude mice in vivo. RESULTS Survivin-specific siRNA efficiently down-regulated survivin expression. The cell cycle was arrested at G2/M phase, and apoptosis was obviously found. Inhibition of survivin expression could make the IC50 and drug-resistant index of cisplatin decrease, and enhance the cancer cells sensitivity to cisplatin. After transfection by survivin-specific siRNA, expression of LRP and cyclin-D1 were downregulated, caspase-3 expression was upregulated, bcl-2 expression had no obvious change. The animal experiment confirmed knockdown of survivin could inhibit the tumor growth. CONCLUSIONS Survivin-specific siRNA can efficiently suppress the expression of survivin, increase apoptosis, inhibit cells proliferation and enhance the chemosensitivity to cisplatin in vitro and in vivo. Suppression of survivin expression helping to reverse drug-resistance may have relationship with downregulation of LRP and upregulation of caspase-3. Anti-tumor strategies based on the inhibition of survivin may be useful in targeting lung adenocarcinomas.
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Affiliation(s)
- Jing-lei Liu
- Department of Medical Oncology, Affiliated Tumor Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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Nowak-Markwitz E, Puła B, Szajnik M, Dziegiel P, Piotrowska A, Zabel M, Spaczyński M. [Expression of survivin, SDF-1 and CXCR4 on tumor cells in ovarian cancer]. Ginekol Pol 2010; 81:674-677. [PMID: 20973204] [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: 05/30/2023] Open
Abstract
BACKGROUND epithelial ovarian cancer (EOC) has the highest mortality rate among patients with gynecologic malignancies. Lack of specific and early symptoms and of screening tests causes that most patients are diagnosed in advanced stage of disease. Radical surgery followed by chemotherapy does not bring satisfactory curative effects. OBJECTIVES the urgent need exists to define the optimum biomarker for ovarian cancer to predict patients' response to curative therapy. Our current study aimed at correlation between the expression of survivin, SDF-1, CXCR-4 on tumor tissue and clinical outcome of patients with ovarian cancer. RESULTS We showed that survivin expression correlates with histological grading of the tumor. No correlation was found in terms of SDF-1/ CXCR-4 expression and clinicopathologic data. CONCLUSIONS further studies covering larger number of patients are needed to determine whether SDF-1 and CXCR-4 might be considered as biomarkers for ovarian cancer.
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Affiliation(s)
- Ewa Nowak-Markwitz
- Klinika Onkologii Ginekologicznej, Katedra Ginekologii, Połoznictwa i Onkologii Ginekologicznej, Uniwersytet Medyczny, Poznań.
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Yoon S, Choi YC, Lee S, Jeong Y, Yoon J, Baek K. Induction of growth arrest by miR-542-3p that targets survivin. FEBS Lett 2010; 584:4048-52. [PMID: 20728447 DOI: 10.1016/j.febslet.2010.08.025] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [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: 05/12/2010] [Revised: 08/16/2010] [Accepted: 08/16/2010] [Indexed: 02/04/2023]
Abstract
Survivin is a protein which functions as a mitotic regulator as well as apoptosis inhibitor. In this study, we show that introduction of synthetic miR-542-3p mimetic reduced both mRNA and protein levels of survivin. In A549 cells, luciferase reporter assay revealed that miR-542-3p targeted predicted binding sites in the 3'-untranslated region (3'-UTR) of survivin. We also demonstrate that ectopic expression of miR-542-3p inhibited cell proliferation by inducing Gap 1 (G1) and Gap 2/Mitosis (G2/M) cell cycle arrest. Collectively, these results suggest that survivin is a direct target of miR-542-3p and growth inhibition by miR-542-3p may have a potential utility as an anti-cancer therapy.
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Affiliation(s)
- Sena Yoon
- Graduate School of Biotechnology, Kyung Hee University, Yongin, Republic of Korea
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Liu HF, Hu HC, Chao JI. Oxaliplatin down-regulates survivin by p38 MAP kinase and proteasome in human colon cancer cells. Chem Biol Interact 2010; 188:535-45. [PMID: 20708607 DOI: 10.1016/j.cbi.2010.08.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Revised: 07/24/2010] [Accepted: 08/05/2010] [Indexed: 11/19/2022]
Abstract
Oxaliplatin, a platinum derivative cancer drug, has been used for treating human colorectal cancers. Survivin has been proposed as a cancer target, which highly expressed in most cancer cells but not normal adult cells. In this study, we investigated the regulation of survivin expression by exposure to oxaliplatin in human colon cancer cells. Oxaliplatin (3-9μM for 24h) markedly induced cytotoxicity, proliferation inhibition and apoptosis in the human RKO colon cancer cells. The survivin protein expression of RKO cells is dramatically reduced by oxaliplatin; however, the survivin gene expression is slightly altered. The survivin blockage of oxaliplatin elevated caspase-3 activation and apoptosis in RKO cells. Over-expression of survivin proteins by transfection with a survivin-expressed vector resisted the oxaliplatin-induced cancer cell death. Meantime, oxaliplatin elicited the phosphorylation of p38 mitogen-activated protein (MAP) kinase. SB202190, a specific p38 MAP kinase inhibitor, restored the survivin protein level and attenuated oxaliplatin-induced cancer cell death. In addition, oxaliplatin increased the levels of phospho-p53 (Ser-15) and total p53 proteins. Inhibition of p53 expression by a specific p53 inhibitor pifithrin-α reduced the phosphorylated p38 MAP kinase and active caspase-3 proteins in the oxaliplatin-exposed RKO cells. In contrast, SB202190 did not alter the oxaliplatin-induced p53 protein level. Furthermore, treatment with a specific proteasome inhibitor MG132 restored survivin protein level in the oxaliplatin-treated colon cancer cells. Taken together, our results demonstrate for the first time that survivin is down-regulated by p38 MAP kinase and proteasome degradation pathway after treatment with oxaliplatin in the human colon cancer cells.
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Affiliation(s)
- Huei-Fang Liu
- Department of Biological Science and Technology, National Chiao Tung University, Taiwan, Republic of China
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Uemura N, Kodama S, Nomi N, Okamoto T, Suzuki M. Correlation between anti-survivin antibody and survivin mRNA expression in head and neck cancer patients. Acta Otolaryngol 2010; 130:959-65. [PMID: 20100132 DOI: 10.3109/00016480903555416] [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] [Indexed: 12/28/2022]
Abstract
CONCLUSIONS Survivin may act as a major cancer antigen in head and neck cancer, and the present study revealed a link between systemic anti-survivin antibody responses and survivin expression in cancer tissues in patients with head and neck cancer. OBJECTIVES Survivin is highly expressed in cancer cells, but is expressed at low levels or not at all in normal tissues. Little is known about the relationship between survivin expression and antibody responses to survivin in patients with head and neck cancer. METHODS Anti-survivin antibody responses in sera of head and neck cancer patients were investigated by enzyme-linked immunosorbent assay. The expression of survivin mRNA in the cancer tissues from larynx and hypopharynx was examined by quantitative RT-PCR. RESULTS Sera from 42 of 55 patients (76.4%) were positive for anti-survivin. High levels of anti-survivin were detected in patients in the advanced stage of disease. Most cancer tissues, but not normal adjacent tissues, expressed survivin mRNA, and a significant correlation between the levels of anti-survivin antibody in the serum and survivin mRNA in cancer tissues was detected.
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Affiliation(s)
- Naoki Uemura
- Department of Otolaryngology, Oita University Faculty of Medicine, Oita, Japan
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Zhao L, Shan B, Du Y, Wang M, Liu L, Ren FZ. Periplocin from Cortex periplocae inhibits cell growth and down-regulates survivin and c-myc expression in colon cancer in vitro and in vivo via beta-catenin/TCF signaling. Oncol Rep 2010; 24:375-383. [PMID: 20596624] [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: 05/29/2023] Open
Abstract
Cancer of the colon and rectum is the third most commonly diagnosed cancer and accounts for approximately 10% of all cancer-related deaths. Although surgical resection or radiotherapy are potentially curative for localized disease, advanced colon cancer is currently associated with poor prognosis. Therefore, the development of a new and effective chemotherapeutic agent is required to target critical pathways to induce responsiveness of colon cancer cells to death signals. Dysregulation of the beta-catenin/TCF pathway plays a central role in early activities of colorectal carcinogenesis. In this study, human colon cancer SW480 cells were used to investigate the effect of CPP (periplocin from Cortex periplocae) on the modulation of the beta-catenin/TCF signaling pathway. Our research results showed that CPP caused a dose- and time-dependent inhibition of cell growth as assessed by MTT assay and an induction in apoptosis as measured by flow cytometry and transmission electron microscopy. Furthermore, the CPP- treated cells were characterized by a decreased expression of beta-catenin protein in the total cell lysates and cytosolic and nuclear extracts. This expression alleviates the binding activity of T-cell factor (Tcf) complexes to its specific DNA-binding sites. Thus, the protein expression of the downstream elements survivin and c-myc was down-regulated. To determine the precise inhibitory mechanisms involved, further in-depth in vivo studies of CPP are warranted. In conclusion, our data suggest that CPP wields a multi-prong strategy to target the beta-catenin/Tcf signaling pathway, leading to the induction of apoptosis and inhibition of growth of colon cancer cells in vitro and in vivo. Therefore, CPP may become a potential agent against colon cancer.
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Affiliation(s)
- Lianmei Zhao
- Research Center, The Fourth Hospital, Hebei Medical University, Hebei 050011, PR China
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50
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Abstract
Survivin and Plk1 kinase are important mediators of cell survival that are required for chromosome alignment, cytokinesis, and protection from apoptosis. Interference with either survivin or Plk1 activity manifests many similar outcomes: prometaphase delay/arrest, multinucleation, and increased apoptosis. Moreover, the expression of both survivin and Plk1 is deregulated in cancer. Given these similarities, we speculated that these two proteins may cooperate during mitosis and/or in cell death pathways. Here we report that survivin and Plk1 interact during mitosis and that Plk1 phosphorylates survivin at serine 20. Importantly, we find that overexpression of a non-phosphorylatable version, S20A, is unable to correct chromosomes connected to the spindle in a syntelic manner during prometaphase and allows cells harboring these maloriented chromosomes to enter anaphase, evading the spindle tension checkpoint. By contrast, the constitutive phosphomimic, S20D, completes congression and division ahead of schedule and, unlike S20A, is able to support proliferation in the absence of the endogenous protein. Despite the importance of this residue in mitosis, its mutation does not appear to affect the anti-apoptotic activity of survivin in response to TRAIL. Together, these data suggest that phosphorylation of survivin at Ser(20) by Plk1 kinase is essential for accurate chromosome alignment and cell proliferation but is dispensable for its anti-apoptotic activity in cancer cells.
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Affiliation(s)
- Rita Colnaghi
- From the Genome Damage and Stability Centre, University of Sussex, Falmer, Brighton BN1 9RQ, United Kingdom and
| | - Sally P. Wheatley
- the School of Biomedical Sciences, University of Nottingham, Nottingham NG7 2UH, United Kingdom
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