1
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Chen Y, Li R, Li Z, Yang B, He J, Li J, Li P, Zhou Z, Wu Y, Zhao Y, Guo G. Bulk and single cells transcriptomes with experimental validation identify USP18 as a novel glioma prognosis and proliferation indicator. Exp Ther Med 2024; 27:229. [PMID: 38596661 PMCID: PMC11002833 DOI: 10.3892/etm.2024.12517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 02/21/2024] [Indexed: 04/11/2024] Open
Abstract
The mechanism by which ubiquitin-specific protease 18 (USP18) (enzyme commission: 3.4.19.12) inhibition in cancer promotes cell pyroptosis via the induction of interferon (IFN)-stimulated genes has been recently demonstrated. It is also known that USP18 influences the epithelial-mesenchymal transition of glioma cells. In the present study, the upregulation of USP18 in glioma was revealed through bulk transcriptome analysis, which was associated with poor prognosis in patients with glioma. Furthermore, USP18 levels affected the response to immunotherapy in patients with glioma. Single-cell transcriptome and enrichment analyses demonstrated that USP18 was associated with type 1 IFN responses in glioma T cells. To demonstrate the effect of USP18 expression levels on glioma cells, USP18 expression was knocked down in U251 and U87MG ATCC cell lines. A subsequent Cell Counting Kit-8 assay revealed that glioma cell viability was significantly decreased 4 days after USP18 knockdown. In addition, the knockdown of USP18 expression significantly inhibited the clonogenicity of U251 and U87MG ATCC cells. In conclusion, the present study demonstrated that knockdown of USP18 expression inhibited the proliferation of glioma cells, which may be mediated by the effect of USP18 on the IFN-I response.
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Affiliation(s)
- Yang Chen
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Ren Li
- School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Ziao Li
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Biao Yang
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Jianhang He
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Jiayu Li
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Peize Li
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Zihan Zhou
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Yongqiang Wu
- Department of Emergency, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Yuanli Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, P.R. China
| | - Geng Guo
- Department of Emergency, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
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2
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Clancy A, Rusilowicz-Jones EV, Wallace I, Swatek KN, Urbé S, Clague MJ. ISGylation-independent protection of cell growth by USP18 following interferon stimulation. Biochem J 2023; 480:1571-1581. [PMID: 37756534 PMCID: PMC10586769 DOI: 10.1042/bcj20230301] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/20/2023] [Accepted: 09/26/2023] [Indexed: 09/29/2023]
Abstract
Type 1 interferon stimulation highly up-regulates all elements of a ubiquitin-like conjugation system that leads to ISGylation of target proteins. An ISG15-specific member of the deubiquitylase family, USP18, is up-regulated in a co-ordinated manner. USP18 can also provide a negative feedback by inhibiting JAK-STAT signalling through protein interactions independently of DUB activity. Here, we provide an acute example of this phenomenon, whereby the early expression of USP18, post-interferon treatment of HCT116 colon cancer cells is sufficient to fully suppress the expression of the ISG15 E1 enzyme, UBA7. Stimulation of lung adenocarcinoma A549 cells with interferon reduces their growth rate but they remain viable. In contrast, A549 USP18 knock-out cells show similar growth characteristics under basal conditions, but upon interferon stimulation, a profound inhibition of cell growth is observed. We show that this contingency on USP18 is independent of ISGylation, suggesting non-catalytic functions are required for viability. We also demonstrate that global deISGylation kinetics are very slow compared with deubiquitylation. This is not influenced by USP18 expression, suggesting that enhanced ISGylation in USP18 KO cells reflects increased conjugating activity.
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Affiliation(s)
- Anne Clancy
- Biochemistry, Cell and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Crown St., Liverpool L69 3BX, U.K
| | - Emma V. Rusilowicz-Jones
- Biochemistry, Cell and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Crown St., Liverpool L69 3BX, U.K
| | - Iona Wallace
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee DD1 5EH, U.K
| | - Kirby N. Swatek
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee DD1 5EH, U.K
| | - Sylvie Urbé
- Biochemistry, Cell and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Crown St., Liverpool L69 3BX, U.K
| | - Michael J. Clague
- Biochemistry, Cell and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Crown St., Liverpool L69 3BX, U.K
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3
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Gao H, Yin J, Ji C, Yu X, Xue J, Guan X, Zhang S, Liu X, Xing F. Targeting ubiquitin specific proteases (USPs) in cancer immunotherapy: from basic research to preclinical application. J Exp Clin Cancer Res 2023; 42:225. [PMID: 37658402 PMCID: PMC10472646 DOI: 10.1186/s13046-023-02805-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/21/2023] [Indexed: 09/03/2023] Open
Abstract
Tumors have evolved in various mechanisms to evade the immune system, hindering the antitumor immune response and facilitating tumor progression. Immunotherapy has become a potential treatment strategy specific to different cancer types by utilizing multifarious molecular mechanisms to enhance the immune response against tumors. Among these mechanisms, the ubiquitin-proteasome system (UPS) is a significant non-lysosomal pathway specific to protein degradation, regulated by deubiquitinating enzymes (DUBs) that counterbalance ubiquitin signaling. Ubiquitin-specific proteases (USPs), the largest DUB family with the strongest variety, play critical roles in modulating immune cell function, regulating immune response, and participating in antigen processing and presentation during tumor progression. According to recent studies, the expressions of some USP family members in tumor cells are involved in tumor immune escape and immune microenvironment. This review explores the potential of targeting USPs as a new approach for cancer immunotherapy, highlighting recent basic and preclinical studies investigating the applications of USP inhibitors. By providing insights into the structure and function of USPs in cancer immunity, this review aims at assisting in developing new therapeutic approaches for enhancing the immunotherapy efficacy.
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Affiliation(s)
- Hongli Gao
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Jianqiao Yin
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Ce Ji
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Xiaopeng Yu
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Jinqi Xue
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Xin Guan
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Shuang Zhang
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Xun Liu
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China.
| | - Fei Xing
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, 110004, China.
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4
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Pradeep P, Sivakumar KC, Sreekumar E. Host Factor Nucleophosmin 1 (NPM1/B23) Exerts Antiviral Effects against Chikungunya Virus by Its Interaction with Viral Nonstructural Protein 3. Microbiol Spectr 2023; 11:e0537122. [PMID: 37409962 PMCID: PMC10433958 DOI: 10.1128/spectrum.05371-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 06/13/2023] [Indexed: 07/07/2023] Open
Abstract
Chikungunya virus (CHIKV) hijacks host cell machinery to support its replication. Nucleophosmin 1 (NPM1/B23), a nucleolar phosphoprotein, is one of the host proteins known to restrict CHIKV infection; however, the mechanistic details of the antiviral role of NPM1 are not elucidated. It was seen in our experiments that the level of NPM1 expression affected the expression levels of interferon-stimulated genes (ISGs) that play antiviral roles in CHIKV infection, such as IRF1, IRF7, OAS3, and IFIT1, indicating that one of the antiviral mechanisms could be through modulation of interferon-mediated pathways. Our experiments also identified that for CHIKV restriction, NPM1 must move from the nucleus to the cytoplasm. A deletion of the nuclear export signal (NES), which confines NPM1 within the nucleus, abolishes its anti-CHIKV action. We observed that NPM1 binds CHIKV nonstructural protein 3 (nsP3) strongly via its macrodomain, thereby exerting a direct interaction with viral proteins to limit infection. Based on site-directed mutagenesis and coimmunoprecipitation studies, it was also observed that amino acid residues N24 and Y114 of the CHIKV nsP3 macrodomain, known to be involved in virus virulence, bind ADP-ribosylated NPM1 to inhibit infection. Overall, the results show a key role of NPM1 in CHIKV restriction and indicate it as a promising host target for developing antiviral strategies against CHIKV. IMPORTANCE Chikungunya, a recently reemerged mosquito-borne infection caused by a positive-sense, single-stranded RNA virus, has caused explosive epidemics in tropical regions. Unlike the classical symptoms of acute fever and debilitating arthralgia, incidences of neurological complications and mortality were reported. Currently there are no antivirals or commercial vaccines available against chikungunya. Like all viruses, CHIKV uses host cellular machinery for establishment of infection and successful replication. To counter this, the host cell activates several restriction factors and innate immune response mediators. Understanding these host-virus interactions helps to develop host-targeted antivirals against the disease. Here, we report the antiviral role of the multifunctional host protein NPM1 against CHIKV. The significant inhibitory effect of this protein against CHIKV involves its increased expression and movement from its natural location within the nucleus to the cytoplasm. There, it interacts with functional domains of key viral proteins. Our results support ongoing efforts toward development of host-directed antivirals against CHIKV and other alphaviruses.
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Affiliation(s)
- Parvanendhu Pradeep
- Molecular Virology Laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, India
- Research Centre, University of Kerala, Thiruvananthapuram, India
| | | | - Easwaran Sreekumar
- Molecular Virology Laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, India
- Molecular Bioassay Laboratory, Institute of Advanced Virology (IAV), Thiruvananthapuram, India
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5
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Chen Z, Zheng L, Chen Y, Liu X, Kawakami M, Mustachio LM, Roszik J, Ferry-Galow KV, Parchment RE, Liu X, Andresson T, Duncan G, Kurie JM, Rodriguez-Canales J, Liu X, Dmitrovsky E. Loss of ubiquitin-specific peptidase 18 destabilizes 14-3-3ζ protein and represses lung cancer metastasis. Cancer Biol Ther 2022; 23:265-280. [PMID: 35387560 PMCID: PMC8993103 DOI: 10.1080/15384047.2022.2054242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Cancer metastasis is a major cause of cancer-related mortality. Strategies to reduce metastases are needed especially in lung cancer, the most common cause of cancer mortality. We previously reported increased ubiquitin-specific peptidase 18 (USP18) expression in lung and other cancers. Engineered reduction of USP18 expression repressed lung cancer growth and promoted apoptosis. This deubiquitinase (DUB) stabilized targeted proteins by removing the complex interferon-stimulated gene 15 (ISG15). This study explores if the loss of USP18 reduced lung cancer metastasis. USP18 knock-down in lung cancer cells was independently achieved using small hairpin RNAs (shRNAs) and small interfering RNAs (siRNAs). USP18 knock-down reduced lung cancer growth, wound-healing, migration, and invasion versus controls (P < .001) and markedly decreased murine lung cancer metastases (P < .001). Reverse Phase Protein Arrays (RPPAs) in shRNA knock-down lung cancer cells showed that 14-3-3ζ protein was regulated by loss of USP18. ISG15 complexed with 14-3-3ζ protein reducing its stability. Survival in lung adenocarcinomas (P < .0015) and other cancers was linked to elevated 14-3-3ζ expression as assessed by The Cancer Genome Atlas (TCGA). The findings were confirmed and extended using 14-3-3ζ immunohistochemical assays of human lung cancer arrays and syngeneic murine lung cancer metastasis models. A direct 14-3-3ζ role in controlling lung cancer metastasis came from engineered 14-3-3ζ knock-down in lung cancer cell lines and 14-3-3ζ rescue experiments that reversed migration and invasion inhibition. Findings presented here revealed that USP18 controlled metastasis by regulating 14-3-3ζ expression. These data provide a strong rationale for developing a USP18 inhibitor to combat metastases.
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Affiliation(s)
- Zibo Chen
- Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Lin Zheng
- Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yulong Chen
- Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Xiuxia Liu
- Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Masanori Kawakami
- Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Lisa Maria Mustachio
- Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jason Roszik
- Melanoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Katherine V Ferry-Galow
- Clinical Pharmacodynamic Program, Applied/Developmental Research Directorate, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Ralph E Parchment
- Clinical Pharmacodynamic Program, Applied/Developmental Research Directorate, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Xin Liu
- Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Thorkell Andresson
- Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Gerard Duncan
- Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Jonathan M Kurie
- Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Xi Liu
- Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Ethan Dmitrovsky
- Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA.,Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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6
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Liang Q, Zhong W. Downregulated Expression of USP18 Is Associated with a Higher Recurrence Risk of Papillary Thyroid Carcinoma. TOHOKU J EXP MED 2021; 255:203-212. [PMID: 34759076 DOI: 10.1620/tjem.255.203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
As a member of the deubiquitinating protease family, ubiquitin specific peptidase 18 (USP18) is well acknowledged for its roles in stabilizing downstream protein substrates and inhibiting type I interferon signaling. USP18 has been reported to exert distinct roles in different cancer types. However, its expression and function in papillary thyroid carcinoma (PTC) remain unknown. Here we collected 156 PTC patients and retrospectively retrieved their clinicopathological characteristics as well as their survival data. Among them, USP18 was hypoexpressed in 47 PTC samples (30.1%) and significantly correlated with oncogenic characteristics. According to univariate and multivariate analyses, low USP18 can act as an independent prognostic indicator for unfavorable progression-free survival of PTC patients. Ectopic overexpression and knockdown assays indicated that USP18 can negatively regulate the proliferation of PTC cell lines. The anti-tumor effect of USP18 was finally validated by xenografts results from nude mice. Taken together, PTC patients with low level of USP18 have worse survival compared to those possess high USP18 expression. Downregulated USP18 may be involved in the proliferation of PTC, and USP18 expression can serve as an independent survival predictor.
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Affiliation(s)
- Qihong Liang
- Department of General Surgery, The First Affiliated Hospital of Anhui University of Science and Technology
| | - Wei Zhong
- Department of General Surgery, The First Affiliated Hospital of Anhui University of Science and Technology
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7
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Khan S, Mahalingam R, Sen S, Martinez-Ledesma E, Khan A, Gandy K, Lang FF, Sulman EP, Alfaro-Munoz KD, Majd NK, Balasubramaniyan V, de Groot JF. Intrinsic Interferon Signaling Regulates the Cell Death and Mesenchymal Phenotype of Glioblastoma Stem Cells. Cancers (Basel) 2021; 13:cancers13215284. [PMID: 34771447 PMCID: PMC8582372 DOI: 10.3390/cancers13215284] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 10/15/2021] [Indexed: 01/12/2023] Open
Abstract
Simple Summary Interferon signaling is mostly studied in the context of immune cells. However, its role in glioma cancer cells is unclear. This study aimed to investigate the role of cancer-cell-intrinsic IFN signaling in tumorigenesis in glioblastoma (GBM). We found that GSCs and GBM tumors exhibited differential cell-intrinsic type I and type II IFN signaling, and the high IFN/STAT1 signaling was associated with mesenchymal phenotype and poor survival in glioma patients. IFN-β exposure induced cell death in GSCs with intrinsically high IFN/STAT1 signaling, and this effect was abolished by inhibition of IFN/STAT1 signaling. A subset of GBM patients with high IFN/STAT1 may benefit from the IFN-β therapy. Abstract Interferon (IFN) signaling contributes to stemness, cell proliferation, cell death, and cytokine signaling in cancer and immune cells; however, the role of IFN signaling in glioblastoma (GBM) and GBM stem-like cells (GSCs) is unclear. Here, we investigated the role of cancer-cell-intrinsic IFN signaling in tumorigenesis in GBM. We report here that GSCs and GBM tumors exhibited differential cell-intrinsic type I and type II IFN signaling, and high IFN/STAT1 signaling was associated with mesenchymal phenotype and poor survival outcomes. In addition, chronic inhibition of IFN/STAT1 signaling decreased cell proliferation and mesenchymal signatures in GSCs with intrinsically high IFN/STAT1 signaling. IFN-β exposure induced apoptosis in GSCs with intrinsically high IFN/STAT1 signaling, and this effect was abolished by the pharmacological inhibitor ruxolitinib and STAT1 knockdown. We provide evidence for targeting IFN signaling in a specific sub-group of GBM patients. IFN-β may be a promising candidate for adjuvant GBM therapy.
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Affiliation(s)
- Sabbir Khan
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, USA; (S.K.); (S.S.); (E.M.-L.); (K.G.); (K.D.A.-M.); (N.K.M.)
| | - Rajasekaran Mahalingam
- Department of Symptom Research, MD Anderson Cancer Center, The University of Texas, Houston, TX 770030, USA;
| | - Shayak Sen
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, USA; (S.K.); (S.S.); (E.M.-L.); (K.G.); (K.D.A.-M.); (N.K.M.)
| | - Emmanuel Martinez-Ledesma
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, USA; (S.K.); (S.S.); (E.M.-L.); (K.G.); (K.D.A.-M.); (N.K.M.)
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Ave. Morones Prieto 3000, Monterrey 64710, Mexico
| | - Arshad Khan
- Department of Pathology and Genomic Medicine, Houston Methodist Research Institute, Houston, TX 77030, USA;
| | - Kaitlin Gandy
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, USA; (S.K.); (S.S.); (E.M.-L.); (K.G.); (K.D.A.-M.); (N.K.M.)
| | - Frederick F. Lang
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, USA;
| | - Erik P. Sulman
- Department of Radiation Oncology, New York University, New York, NY 10016, USA;
| | - Kristin D. Alfaro-Munoz
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, USA; (S.K.); (S.S.); (E.M.-L.); (K.G.); (K.D.A.-M.); (N.K.M.)
| | - Nazanin K. Majd
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, USA; (S.K.); (S.S.); (E.M.-L.); (K.G.); (K.D.A.-M.); (N.K.M.)
| | - Veerakumar Balasubramaniyan
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, USA; (S.K.); (S.S.); (E.M.-L.); (K.G.); (K.D.A.-M.); (N.K.M.)
- Correspondence: (V.B.); (J.F.d.G.)
| | - John F. de Groot
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, USA; (S.K.); (S.S.); (E.M.-L.); (K.G.); (K.D.A.-M.); (N.K.M.)
- Department of Neuro-Oncology, University of California, San Francisco, CA 94143, USA
- Correspondence: (V.B.); (J.F.d.G.)
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8
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Iuliano L, Drioli S, Pignochino Y, Cafiero CM, Minisini M, D'Este F, Picco R, Dalla E, Giordano G, Grignani G, Di Giorgio E, Benedetti F, Felluga F, Brancolini C. Enhancing Proteotoxic Stress in Leiomyosarcoma Cells Triggers Mitochondrial Dysfunctions, Cell Death, and Antitumor Activity in vivo. Mol Cancer Ther 2021; 20:1039-1051. [PMID: 33785653 DOI: 10.1158/1535-7163.mct-20-0521] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 11/27/2020] [Accepted: 03/09/2021] [Indexed: 11/16/2022]
Abstract
Leiomyosarcomas are rare and aggressive tumors characterized by a complex karyotype. Surgical resection with or without radiotherapy and chemotherapy is the standard curative treatment. Unfortunately, a high percentage of leiomyosarcomas recurs and metastasizes. In these cases, doxorubicin and ifosfamide represent the standard treatment but with low response rates. Here, we evaluated the induction of proteotoxic stress as a possible strategy to kill leiomyosarcoma cells in a therapeutic perspective. We show that aggressive leiomyosarcomas coexist with high levels of proteotoxic stress. As a consequence, we hypothesized that leiomyosarcoma cells are vulnerable to further increases of proteotoxic stress. The small compound 2c is a strong inducer of proteotoxic stress. In leiomyosarcoma cells, it triggers cell death coupled to a profound reorganization of the mitochondrial network. By using stimulated emission depletion microscopy, we have unveiled the existence of DIABLO/SMAC clusters that are modulated by 2c. Finally, we have engineered a new version of 2c linked to polyethylene glycol though a short peptide, named 2cPP. This new prodrug is specifically activated by proteases present in the tumor microenvironment. 2cPP shows a strong antitumor activity in vivo against leiomyosarcomas and no toxicity against normal cells.
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Affiliation(s)
- Luca Iuliano
- Department of Medicine, Università degli Studi di Udine, Udine, Italy
| | - Sara Drioli
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Trieste, Italy
| | - Ymera Pignochino
- Department of Clinical and Biological Sciences, University of Torino, c/o San Luigi Gonzaga Hospital, Orbassano, Torino, Italy.,Sarcoma Unit, Division of Medical Oncology, Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
| | - Claudia Maria Cafiero
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Trieste, Italy
| | - Martina Minisini
- Department of Medicine, Università degli Studi di Udine, Udine, Italy
| | - Francesca D'Este
- Department of Medicine, Università degli Studi di Udine, Udine, Italy
| | - Raffaella Picco
- Department of Medicine, Università degli Studi di Udine, Udine, Italy
| | - Emiliano Dalla
- Department of Medicine, Università degli Studi di Udine, Udine, Italy
| | - Giorgia Giordano
- Sarcoma Unit, Division of Medical Oncology, Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy.,Department of Oncology, University of Torino, Torino, Italy
| | - Giovanni Grignani
- Sarcoma Unit, Division of Medical Oncology, Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
| | - Eros Di Giorgio
- Department of Medicine, Università degli Studi di Udine, Udine, Italy
| | - Fabio Benedetti
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Trieste, Italy
| | - Fulvia Felluga
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Trieste, Italy
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9
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Scholz N, Kurian KM, Siebzehnrubl FA, Licchesi JDF. Targeting the Ubiquitin System in Glioblastoma. Front Oncol 2020; 10:574011. [PMID: 33324551 PMCID: PMC7724090 DOI: 10.3389/fonc.2020.574011] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 10/07/2020] [Indexed: 12/12/2022] Open
Abstract
Glioblastoma is the most common primary brain tumor in adults with poor overall outcome and 5-year survival of less than 5%. Treatment has not changed much in the last decade or so, with surgical resection and radio/chemotherapy being the main options. Glioblastoma is highly heterogeneous and frequently becomes treatment-resistant due to the ability of glioblastoma cells to adopt stem cell states facilitating tumor recurrence. Therefore, there is an urgent need for novel therapeutic strategies. The ubiquitin system, in particular E3 ubiquitin ligases and deubiquitinating enzymes, have emerged as a promising source of novel drug targets. In addition to conventional small molecule drug discovery approaches aimed at modulating enzyme activity, several new and exciting strategies are also being explored. Among these, PROteolysis TArgeting Chimeras (PROTACs) aim to harness the endogenous protein turnover machinery to direct therapeutically relevant targets, including previously considered "undruggable" ones, for proteasomal degradation. PROTAC and other strategies targeting the ubiquitin proteasome system offer new therapeutic avenues which will expand the drug development toolboxes for glioblastoma. This review will provide a comprehensive overview of E3 ubiquitin ligases and deubiquitinating enzymes in the context of glioblastoma and their involvement in core signaling pathways including EGFR, TGF-β, p53 and stemness-related pathways. Finally, we offer new insights into how these ubiquitin-dependent mechanisms could be exploited therapeutically for glioblastoma.
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Affiliation(s)
- Nico Scholz
- Department of Biology & Biochemistry, University of Bath, Bath, United Kingdom
| | - Kathreena M. Kurian
- Brain Tumour Research Group, Institute of Clinical Neurosciences, University of Bristol, Bristol, United Kingdom
| | - Florian A. Siebzehnrubl
- Cardiff University School of Biosciences, European Cancer Stem Cell Research Institute, Cardiff, United Kingdom
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10
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Zika virus induces oxidative stress and decreases antioxidant enzyme activities in vitro and in vivo. Virus Res 2020; 286:198084. [DOI: 10.1016/j.virusres.2020.198084] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 04/20/2020] [Accepted: 07/01/2020] [Indexed: 01/06/2023]
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11
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Diao W, Guo Q, Zhu C, Song Y, Feng H, Cao Y, Du M, Chen H. USP18 promotes cell proliferation and suppressed apoptosis in cervical cancer cells via activating AKT signaling pathway. BMC Cancer 2020; 20:741. [PMID: 32770981 PMCID: PMC7414560 DOI: 10.1186/s12885-020-07241-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 07/30/2020] [Indexed: 12/11/2022] Open
Abstract
Background The deubiquitinating (DUB) enzyme ubiquitin-specific protease 18 (USP18), also known as UBP43, is an ubiquitin-specific protease linked to several human malignancies. However, USP18’s underlying function in human cervical cancer remains unclear. In the current study, we aimed to analyse the role of USP18 and its signalling pathways in cervical cancer. Methods Quantitative real-time polymerase chain reaction (qRT-PCR) and immunohistochemical staining were performed to analyse USP18 levels in cervical cancer and matched to adjacent normal tissues. Moreover, RNA interference (RNAi) and lentiviral-mediated vector transfections were performed to silence and overexpress USP18, respectively, in cervical cancer cells. Further, Cell Counting Kit-8 (CCK-8) and Annexin V/PI staining assays were used to assess its biological function in cell proliferation and apoptosis, respectively. A xenograft model was used to examine USP18’s function in vivo. Results The present findings demonstrated that USP18 was overexpressed in cervical cancer specimens and cell lines. Silencing USP18 in SiHa and Caski cervical cancer cell lines inhibited cell proliferation, induced apoptosis, and promoted cleaved caspase-3 expression. In contrast, USP18 overexpression showed the opposite effects in human HcerEpic cells. A Gene Set Enrichment Analysis revealed that USP18 was enriched in the PI3K/AKT signalling pathway in cervical cancer. Hence, the PI3K/AKT inhibitor LY294002 was used to determine the relationship between USP18 and AKT in cervical cancer cells. Importantly, LY294002 significantly abolished the effects of USP18 overexpression in cervical cancer cells. In vivo, USP18 silencing inhibited human cervical cancer cells’ tumorigenicity. Conclusions The current study indicates that USP18 is an oncogenic gene in cervical cancer. Our findings not only deepened the understanding of USP18’s biological function in cervical cancer pathogenesis, but we also provided novel insight for cervical cancer therapy. Trial registration Retrospectively registered.
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Affiliation(s)
- Wenjing Diao
- Medical Center of Cervical Diseases, Obstetrics and Gynecology Hospital, Fudan University, Fangxie Road No. 419, Shanghai, 200011, P.R. China
| | - Qisang Guo
- Medical Center of Cervical Diseases, Obstetrics and Gynecology Hospital, Fudan University, Fangxie Road No. 419, Shanghai, 200011, P.R. China
| | - Caiying Zhu
- Medical Center of Cervical Diseases, Obstetrics and Gynecology Hospital, Fudan University, Fangxie Road No. 419, Shanghai, 200011, P.R. China
| | - Yu Song
- Medical Center of Cervical Diseases, Obstetrics and Gynecology Hospital, Fudan University, Fangxie Road No. 419, Shanghai, 200011, P.R. China
| | - Hua Feng
- Medical Center of Cervical Diseases, Obstetrics and Gynecology Hospital, Fudan University, Fangxie Road No. 419, Shanghai, 200011, P.R. China
| | - Yuankui Cao
- Medical Center of Cervical Diseases, Obstetrics and Gynecology Hospital, Fudan University, Fangxie Road No. 419, Shanghai, 200011, P.R. China
| | - Ming Du
- Medical Center of Cervical Diseases, Obstetrics and Gynecology Hospital, Fudan University, Fangxie Road No. 419, Shanghai, 200011, P.R. China.
| | - Huifen Chen
- Department of Laboratory Medicine, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Changle Road No.536 , Jingan District, Shanghai, 200040, P.R. China.
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Ciotti S, Iuliano L, Cefalù S, Comelli M, Mavelli I, Di Giorgio E, Brancolini C. GSK3β is a key regulator of the ROS-dependent necrotic death induced by the quinone DMNQ. Cell Death Dis 2020; 11:2. [PMID: 31919413 PMCID: PMC6952365 DOI: 10.1038/s41419-019-2202-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 12/11/2019] [Accepted: 12/12/2019] [Indexed: 12/21/2022]
Abstract
Signaling pathways controlling necrosis are still mysterious and debated. We applied a shRNA-based viability screen to identify critical elements of the necrotic response. We took advantage from a small molecule (G5) that makes covalent adducts with free thiols by Michael addition and elicits multiple stresses. In cells resistant to apoptosis, G5 triggers necrosis through the induction of protein unfolding, glutathione depletion, ER stress, proteasomal impairments, and cytoskeletal stress. The kinase GSK3β was isolated among the top hits of the screening. Using the quinone DMNQ, a ROS generator, we demonstrate that GSK3β is involved in the regulation of ROS-dependent necrosis. Our results have been validated using siRNA and by knocking-out GSK3β with the CRISPR/Cas9 technology. In response to DMNQ GSK3β is activated by serine 9 dephosphorylation, concomitantly to Akt inactivation. During the quinone-induced pro-necrotic stress, GSK3β gradually accumulates into the nucleus, before the collapse of the mitochondrial membrane potential. Accumulation of ROS in response to DMNQ is impaired by the absence of GSK3β. We provide evidence that the activities of the obligatory two-electrons reducing flavoenzymes, NQO1 (NAD(P)H quinone dehydrogenase 1) and NQO2 are required to suppress DMNQ-induced necrosis. In the absence of GSK3β the expression of NQO1 and NQO2 is dramatically increased, possibly because of an increased transcriptional activity of NRF2. In summary, GSK3β by blunting the anti-oxidant response and particularly NQO1 and NQO2 expression, favors the appearance of necrosis in response to ROS, as generated by the quinone DMNQ.
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Affiliation(s)
- Sonia Ciotti
- Department of Medicine, Università degli Studi di Udine. P.le Kolbe 4, 33100, Udine, Italy
| | - Luca Iuliano
- Department of Medicine, Università degli Studi di Udine. P.le Kolbe 4, 33100, Udine, Italy
| | - Sebastiano Cefalù
- Department of Medicine, Università degli Studi di Udine. P.le Kolbe 4, 33100, Udine, Italy
| | - Marina Comelli
- Department of Medicine, Università degli Studi di Udine. P.le Kolbe 4, 33100, Udine, Italy
| | - Irene Mavelli
- Department of Medicine, Università degli Studi di Udine. P.le Kolbe 4, 33100, Udine, Italy
| | - Eros Di Giorgio
- Department of Medicine, Università degli Studi di Udine. P.le Kolbe 4, 33100, Udine, Italy
| | - Claudio Brancolini
- Department of Medicine, Università degli Studi di Udine. P.le Kolbe 4, 33100, Udine, Italy.
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Han HG, Moon HW, Jeon YJ. ISG15 in cancer: Beyond ubiquitin-like protein. Cancer Lett 2018; 438:52-62. [DOI: 10.1016/j.canlet.2018.09.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 09/06/2018] [Indexed: 01/08/2023]
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Tan Y, Zhou G, Wang X, Chen W, Gao H. USP18 promotes breast cancer growth by upregulating EGFR and activating the AKT/Skp2 pathway. Int J Oncol 2018; 53:371-383. [PMID: 29749454 DOI: 10.3892/ijo.2018.4387] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 04/11/2018] [Indexed: 12/12/2022] Open
Abstract
Recent studies have suggested that ubiquitin-specific peptidase (USP)18 may act as an oncogene in various types of cancer. Although the role of USP18 in breast cancer cell lines has been elucidated, the underlying mechanisms and clinical role of USP18 in breast cancer are currently not well understood. The bioinformatics analysis and experimental results of the present study demonstrated that aberrant promoter methylation led to increased expression of USP18 in breast cancer. In addition, correlation analysis suggested that a negative correlation between methylation and USP18 mRNA expression was observed in The Cancer Genome Atlas database. USP18 promoted cell proliferation, colony formation and cell cycle progression in vitro. Furthermore, the Gene Set Enrichment Analysis results demonstrated that USP18 may be negatively associated with apoptosis in patients with breast cancer. Bioinformatics analysis results indicated that USP18 was also revealed to be associated with the protein kinase B (AKT) signaling pathway and mammary tumorigenesis in vivo. In addition, the results indicated that USP18 may promote the epidermal growth factor (EGF)-mediated EGF receptor (EGFR)/AKT/S‑phase kinase-associated protein 2 (Skp2) pathway by upregulating EGFR and Skp2 in a AKT/forkhead box O3-dependent manner in breast cancer. The results of bioinformatics analysis revealed that increased USP18 expression was associated with a higher TNM stage and unfavorable prognosis in clinical patients. USP18 was also significantly enhanced in patients with human epidermal growth factor receptor 2-positive breast cancer; furthermore, Kaplan‑Meier curve demonstrated that combining USP18 and Skp2 expression improved prognostic capability in breast cancer. Taken together, these results suggested that USP18 may serve a key role in breast cancer development by upregulating EGFR and subsequently activating the AKT/Skp2 feedback loop pathway. The role of USP18 in breast cancer provides a novel insight into the clinical application of the USP18/AKT/Skp2 pathway.
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Affiliation(s)
- Yawen Tan
- Department of Breast and Thyroid Surgery, The Second People's Hospital of Shenzhen, Shenzhen, Guangdong 518035, P.R. China
| | - Guanglin Zhou
- Department of Breast and Thyroid Surgery, The Second People's Hospital of Shenzhen, Shenzhen, Guangdong 518035, P.R. China
| | - Xianming Wang
- Department of Breast and Thyroid Surgery, The Second People's Hospital of Shenzhen, Shenzhen, Guangdong 518035, P.R. China
| | - Weicai Chen
- Department of Breast and Thyroid Surgery, The Second People's Hospital of Shenzhen, Shenzhen, Guangdong 518035, P.R. China
| | - Haidong Gao
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
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The binding landscape of a partially-selective isopeptidase inhibitor with potent pro-death activity, based on the bis(arylidene)cyclohexanone scaffold. Cell Death Dis 2018; 9:184. [PMID: 29416018 PMCID: PMC5833369 DOI: 10.1038/s41419-017-0259-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 12/07/2017] [Accepted: 12/22/2017] [Indexed: 01/19/2023]
Abstract
Diaryldienone derivatives with accessible β-carbons show strong anti-neoplastic properties, related to their ability to make covalent adducts with free thiols by Michael addition, and low toxicity in vivo. Accumulation of poly-ubiquitylated proteins, activation of the unfolded protein response (UPR) and induction of cell death are universal hallmarks of their activities. These compounds have been characterized as inhibitors of isopeptidases, a family of cysteine-proteases, which de-conjugate ubiquitin and ubiquitin-like proteins from their targets. However, it is unclear whether they can also react with additional proteins. In this work, we utilized the biotin-conjugated diaryldienone-derivative named 2c, as a bait to purify novel cellular targets of these small molecules. Proteomic analyses have unveiled that, in addition to isopeptidases, these inhibitors can form stable covalent adducts with different intracellular proteins, thus potentially impacting on multiple functions of the cells, from cytoskeletal organization to metabolism. These widespread activities can explain the ability of diaryldienone derivatives to efficiently trigger different cell death pathways.
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Galani V, Papadatos SS, Alexiou G, Galani A, Kyritsis AP. In Vitro and In Vivo Preclinical Effects of Type I IFNs on Gliomas. J Interferon Cytokine Res 2017; 37:139-146. [PMID: 28387596 DOI: 10.1089/jir.2016.0094] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The interferons (IFNs) are a family of cytokines with diverse cellular actions such as control of cell proliferation and regulation of immune responses; therefore, they have been extensively studied as antitumor agents for a variety of malignancies, including gliomas. Type I IFNs exert their antitumor effects either directly, by targeting the tumor cells or the tumor stem cells, or indirectly, by regulating the anticancer activities of the immune system. More specifically, IFN-beta and IFN-alpha exhibit antiproliferative effects by p53 induction, CD8+ T-lymphocyte and macrophage activation, chemokine secretion, and miR-21 downregulation. In vitro and in vivo studies provide evidence that immunotherapy could have a role in glioma treatment, especially when first-line therapeutic interventions fail to produce durable responses. These effects are more obvious when combining IFN-beta with classical antitumor therapies such as temozolamide, an oral chemotherapeutic, for both newly diagnosed and recurrent gliomas. However, further clinical studies are needed to determine whether IFNs will have a definite place in the management of gliomas.
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Affiliation(s)
- Vasiliki Galani
- 1 Department of Anatomy-Histology-Embryology, Faculty of Medicine, University of Ioannina , Ioannina, Greece
| | - Stamatis S Papadatos
- 2 3rd Department of Internal Medicine, Athens School of Medicine, National and Kapodistrian University of Athens , Sotiria General Hospital, Athens, Greece
| | - George Alexiou
- 3 Neurosurgical Institute, University of Ioannina , Ioannina, Greece
| | - Angeliki Galani
- 4 Department of Environmental and Natural Resources Management, University of Patras , Patra, Greece
| | - Athanasios P Kyritsis
- 3 Neurosurgical Institute, University of Ioannina , Ioannina, Greece .,5 Department of Neurology, Faculty of Medicine, University of Ioannina , Ioannina, Greece
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Honke N, Shaabani N, Zhang DE, Hardt C, Lang KS. Multiple functions of USP18. Cell Death Dis 2016; 7:e2444. [PMID: 27809302 PMCID: PMC5260889 DOI: 10.1038/cddis.2016.326] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 09/12/2016] [Accepted: 09/16/2016] [Indexed: 12/12/2022]
Abstract
Since the discovery of the ubiquitin system and the description of its important role in the degradation of proteins, many studies have shown the importance of ubiquitin-specific peptidases (USPs). One special member of this family is the USP18 protein (formerly UBP43). In the past two decades, several functions of USP18 have been discovered: this protein is not only an isopeptidase but also a potent inhibitor of interferon signaling. Therefore, USP18 functions as 'a' maestro of many biological pathways in various cell types. This review outlines multiple functions of USP18 in the regulation of various immunological processes, including pathogen control, cancer development, and autoimmune diseases.
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Affiliation(s)
- Nadine Honke
- Institute of Immunology, Medical Faculty, University of Duisburg-Essen, Hufelandstr. 55, Essen 45147, Germany
| | - Namir Shaabani
- Institute of Immunology, Medical Faculty, University of Duisburg-Essen, Hufelandstr. 55, Essen 45147, Germany.,Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Dong-Er Zhang
- Moores UCSD Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Cornelia Hardt
- Institute of Immunology, Medical Faculty, University of Duisburg-Essen, Hufelandstr. 55, Essen 45147, Germany
| | - Karl S Lang
- Institute of Immunology, Medical Faculty, University of Duisburg-Essen, Hufelandstr. 55, Essen 45147, Germany
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Abstract
Copy number alterations (CNA) are one of the driving mechanisms of glioma tumorigenesis, and are currently used as important biomarkers in the routine setting. Therefore, we performed CNA profiling of 65 astrocytomas of distinct malignant grades (WHO grade I–IV) of Brazilian origin, using array-CGH and microsatellite instability analysis (MSI), and investigated their correlation with TERT and IDH1 mutational status and clinico-pathological features. Furthermore, in silico analysis using the Oncomine database was performed to validate our findings and extend the findings to gene expression level. We found that the number of genomic alterations increases in accordance with glioma grade. In glioblastomas (GBM), the most common alterations were gene amplifications (PDGFRA, KIT, KDR, EGFR, and MET) and deletions (CDKN2A and PTEN). Log-rank analysis correlated EGFR amplification and/or chr7 gain with better survival of the patients. MSI was observed in 11% of GBMs. A total of 69% of GBMs presented TERT mutation, whereas IDH1 mutation was most frequent in diffuse (85.7%) and anaplastic (100%) astrocytomas. The combination of 1p19q deletion and TERT and IDH1 mutational status separated tumor groups that showed distinct age of diagnosis and outcome. In silico validation pointed to less explored genes that may be worthy of future investigation, such as CDK2, DMRTA1, and MTAP. Herein, using an extensive integrated analysis, we indicated potentially important genes, not extensively studied in gliomas, that could be further explored to assess their biological and clinical impact in astrocytomas.
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Andzinski L, Spanier J, Kasnitz N, Kröger A, Jin L, Brinkmann MM, Kalinke U, Weiss S, Jablonska J, Lienenklaus S. Growing tumors induce a local STING dependent Type I IFN response in dendritic cells. Int J Cancer 2016; 139:1350-7. [DOI: 10.1002/ijc.30159] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 03/22/2016] [Accepted: 04/11/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Lisa Andzinski
- Molecular Immunology; Helmholtz Centre for Infection Research; Braunschweig Germany
| | - Julia Spanier
- Institute for Experimental Infection Research, Twincore, Centre for Experimental and Clinical Infection Research, a Joint Venture between the Helmholtz Centre for Infection Research, Braunschweig, and the Hannover Medical School; Germany Hannover
| | - Nadine Kasnitz
- Molecular Immunology; Helmholtz Centre for Infection Research; Braunschweig Germany
| | - Andrea Kröger
- Innate Immunity and Infection, Helmholtz Centre for Infection Research; Braunschweig Germany
- Institute of Medical Microbiology, Otto-von-Guericke-University; Magdeburg Germany
| | - Lei Jin
- Center for Immunology and Microbial Disease, Albany Medical College; Albany NY
| | - Melanie M. Brinkmann
- Viral Immune Modulation, Helmholtz Centre for Infection Research; Braunschweig Germany
- Institute of Virology, Hannover Medical School; Hannover Germany
| | - Ulrich Kalinke
- Institute for Experimental Infection Research, Twincore, Centre for Experimental and Clinical Infection Research, a Joint Venture between the Helmholtz Centre for Infection Research, Braunschweig, and the Hannover Medical School; Germany Hannover
| | - Siegfried Weiss
- Molecular Immunology; Helmholtz Centre for Infection Research; Braunschweig Germany
- Institute of Immunology, Hannover Medical School; Hannover Germany
| | - Jadwiga Jablonska
- Molecular Immunology; Helmholtz Centre for Infection Research; Braunschweig Germany
- Translational Oncology, Department of Otorhinolaryngology, University Hospital, University of Duisburg-Essen; Essen Germany
| | - Stefan Lienenklaus
- Molecular Immunology; Helmholtz Centre for Infection Research; Braunschweig Germany
- Institute for Experimental Infection Research, Twincore, Centre for Experimental and Clinical Infection Research, a Joint Venture between the Helmholtz Centre for Infection Research, Braunschweig, and the Hannover Medical School; Germany Hannover
- Institute for Laboratory Animal Science, Hannover Medical School; Hannover Germany
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Majuelos-Melguizo J, Rodríguez MI, López-Jiménez L, Rodríguez-Vargas JM, Martí Martín-Consuegra JM, Serrano-Sáenz S, Gavard J, de Almodóvar JMR, Oliver FJ. PARP targeting counteracts gliomagenesis through induction of mitotic catastrophe and aggravation of deficiency in homologous recombination in PTEN-mutant glioma. Oncotarget 2016; 6:4790-803. [PMID: 25576921 PMCID: PMC4467115 DOI: 10.18632/oncotarget.2993] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 12/10/2014] [Indexed: 12/24/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most common primary brain tumour in adults and one of the most aggressive cancers. PARP-1 is a nuclear protein involved in multiple facets of DNA repair and transcriptional regulation. In this study we dissected the action of PARP inhibition in different GBM cell lines with either functional or mutated PTEN that confers resistance to diverse therapies. In PTEN mutant cells, PARP inhibition induced a severe genomic instability, exacerbated homologous recombination repair (HR) deficiency and down-regulated the Spindle Assembly Checkpoint (SAC) factor BUBR1, leading to mitotic catastrophe (MC). EGFR gene amplification also represents a signature of genetic abnormality in GBM. To more effectively target GBM cells, co-treatment with a PARP inhibitor and an EGFR blocker, erlotinib, resulted in a strong suppression of ERK1/2 activation and in vivo the combined effect elicited a robust reduction in tumour development. In conclusion, PARP inhibition targets PTEN-deficient GBM cells through accentuation of SAC repression and aggravation of HR deficiency, leading to the induction of genomic instability and eventually deriving to mitotic catastrophe (MC); the inhibition of PARP and co-treatment with an inhibitor of pro-survival pathways strongly retarded in vivo gliomagenesis.
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Affiliation(s)
| | | | | | | | | | | | | | | | - F Javier Oliver
- Instituto de Parasitología y Biomedicina López Neyra, CSIC, Granada, Spain
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Abstract
Glioblastoma is a grade IV astrocytoma that is widely accepted in clinical neurosurgery as being an extremely lethal diagnosis. Long-term survival rates remain dismal, and even when tumors undergo gross resection with confirmation of total removal on neuroimaging, they invariably recur with even greater virulence. Standard therapeutic modalities as well as more contemporary treatments have largely resulted in disappointing improvements. However, the therapeutic potential of vaccine immunotherapy for malignant glioma should not be underestimated. In contrast to many of the available treatments, vaccine immunotherapy is unique because it offers the means of delivering treatment that is highly specific to both the patient and the tumor. Peptide, heat-shock proteins, and dendritic cell vaccines collectively encapsulate the majority of research efforts involving vaccine-based treatment modalities. In this review, important recent findings for these vaccine types are discussed in the context of ongoing clinical trials. Broad challenges to immunotherapy are also considered.
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Dey M, Chang AL, Miska J, Wainwright DA, Ahmed AU, Balyasnikova IV, Pytel P, Han Y, Tobias A, Zhang L, Qiao J, Lesniak MS. Dendritic Cell-Based Vaccines that Utilize Myeloid Rather than Plasmacytoid Cells Offer a Superior Survival Advantage in Malignant Glioma. THE JOURNAL OF IMMUNOLOGY 2015; 195:367-76. [PMID: 26026061 DOI: 10.4049/jimmunol.1401607] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 05/02/2015] [Indexed: 12/20/2022]
Abstract
Dendritic cells (DCs) are professional APCs that are traditionally divided into two distinct subsets, myeloid DC (mDCs) and plasmacytoid DC (pDCs). pDCs are known for their ability to secrete large amounts of IFN-α. Apart from IFN-α production, pDCs can also process Ag and induce T cell immunity or tolerance. In several solid tumors, pDCs have been shown to play a critical role in promoting tumor immunosuppression. We investigated the role of pDCs in the process of glioma progression in the syngeneic murine model of glioma. We show that glioma-infiltrating pDCs are the major APC in glioma and are deficient in IFN-α secretion (p < 0.05). pDC depletion leads to increased survival of the mice bearing intracranial tumor by decreasing the number of regulatory T cells (Tregs) and by decreasing the suppressive capabilities of Tregs. We subsequently compared the ability of mDCs and pDCs to generate effective antiglioma immunity in a GL261-OVA mouse model of glioma. Our data suggest that mature pDCs and mDCs isolated from naive mice can be effectively activated and loaded with SIINFEKL Ag in vitro. Upon intradermal injection in the hindleg, a fraction of both types of DCs migrate to the brain and lymph nodes. Compared to mice vaccinated with pDC or control mice, mice vaccinated with mDCs generate a robust Th1 type immune response, characterized by high frequency of CD4(+)T-bet(+) T cells and CD8(+)SIINFEKEL(+) T cells. This robust antitumor T cell response results in tumor eradication and long-term survival in 60% of the animals (p < 0.001).
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Affiliation(s)
- Mahua Dey
- Brain Tumor Center, University of Chicago Pritzker School of Medicine, Chicago, IL 60637; and
| | - Alan L Chang
- Brain Tumor Center, University of Chicago Pritzker School of Medicine, Chicago, IL 60637; and
| | - Jason Miska
- Brain Tumor Center, University of Chicago Pritzker School of Medicine, Chicago, IL 60637; and
| | - Derek A Wainwright
- Brain Tumor Center, University of Chicago Pritzker School of Medicine, Chicago, IL 60637; and
| | - Atique U Ahmed
- Brain Tumor Center, University of Chicago Pritzker School of Medicine, Chicago, IL 60637; and
| | - Irina V Balyasnikova
- Brain Tumor Center, University of Chicago Pritzker School of Medicine, Chicago, IL 60637; and
| | - Peter Pytel
- Department of Pathology, University of Chicago, Chicago, IL 60637
| | - Yu Han
- Brain Tumor Center, University of Chicago Pritzker School of Medicine, Chicago, IL 60637; and
| | - Alex Tobias
- Brain Tumor Center, University of Chicago Pritzker School of Medicine, Chicago, IL 60637; and
| | - Lingjiao Zhang
- Brain Tumor Center, University of Chicago Pritzker School of Medicine, Chicago, IL 60637; and
| | - Jian Qiao
- Brain Tumor Center, University of Chicago Pritzker School of Medicine, Chicago, IL 60637; and
| | - Maciej S Lesniak
- Brain Tumor Center, University of Chicago Pritzker School of Medicine, Chicago, IL 60637; and
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Oh T, Ivan ME, Sun MZ, Safaee M, Fakurnejad S, Clark AJ, Sayegh ET, Bloch O, Parsa AT. PI3K pathway inhibitors: potential prospects as adjuncts to vaccine immunotherapy for glioblastoma. Immunotherapy 2015; 6:737-53. [PMID: 25186604 DOI: 10.2217/imt.14.35] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Constitutive activation of the PI3K pathway has been implicated in glioblastoma (GBM) pathogenesis. Pharmacologic inhibition can both inhibit tumor survival and downregulate expression of programmed death ligand-1, a protein highly expressed on glioma cells that strongly contributes to cancer immunosuppression. In that manner, PI3K pathway inhibitors can help optimize GBM vaccine immunotherapy. In this review, we describe and assess the potential integration of various classes of PI3K pathway inhibitors into GBM immunotherapy. While early-generation inhibitors have a wide range of immunosuppressive effects that could negate their antitumor potency, further work should better characterize how contemporary inhibitors affect the immune response. This will help determine if these inhibitors are truly a therapeutic avenue with a strong future in GBM immunotherapy.
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Affiliation(s)
- Taemin Oh
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Feinberg School of Medicine, 676 N St Clair Street, Suite 2210, Chicago, IL 60611-2911, USA
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24
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Levin D, Schneider WM, Hoffmann HH, Yarden G, Busetto AG, Manor O, Sharma N, Rice CM, Schreiber G. Multifaceted activities of type I interferon are revealed by a receptor antagonist. Sci Signal 2014; 7:ra50. [PMID: 24866020 DOI: 10.1126/scisignal.2004998] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Type I interferons (IFNs), including various IFN-α isoforms and IFN-β, are a family of homologous, multifunctional cytokines. IFNs activate different cellular responses by binding to a common receptor that consists of two subunits, IFNAR1 and IFNAR2. In addition to stimulating antiviral responses, they also inhibit cell proliferation and modulate other immune responses. We characterized various IFNs, including a mutant IFN-α2 (IFN-1ant) that bound tightly to IFNAR2 but had markedly reduced binding to IFNAR1. Whereas IFN-1ant stimulated antiviral activity in a range of cell lines, it failed to elicit immunomodulatory and antiproliferative activities. The antiviral activities of the various IFNs tested depended on a set of IFN-sensitive genes (the "robust" genes) that were controlled by canonical IFN response elements and responded at low concentrations of IFNs. Conversely, these elements were not found in the promoters of genes required for the antiproliferative responses of IFNs (the "tunable" genes). The extent of expression of tunable genes was cell type-specific and correlated with the magnitude of the antiproliferative effects of the various IFNs. Although IFN-1ant induced the expression of robust genes similarly in five different cell lines, its antiviral activity was virus- and cell type-specific. Our findings suggest that IFN-1ant may be a therapeutic candidate for the treatment of specific viral infections without inducing the immunomodulatory and antiproliferative functions of wild-type IFN.
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Affiliation(s)
- Doron Levin
- Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
| | - William M Schneider
- Laboratory of Virology and Infectious Disease, Center for the Study of Hepatitis C, The Rockefeller University, New York, NY 10065, USA
| | - Hans-Heinrich Hoffmann
- Laboratory of Virology and Infectious Disease, Center for the Study of Hepatitis C, The Rockefeller University, New York, NY 10065, USA
| | - Ganit Yarden
- Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
| | | | - Ohad Manor
- Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA
| | - Nanaocha Sharma
- Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Charles M Rice
- Laboratory of Virology and Infectious Disease, Center for the Study of Hepatitis C, The Rockefeller University, New York, NY 10065, USA
| | - Gideon Schreiber
- Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel.
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25
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Kotredes KP, Gamero AM. Interferons as inducers of apoptosis in malignant cells. J Interferon Cytokine Res 2013; 33:162-70. [PMID: 23570382 DOI: 10.1089/jir.2012.0110] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Discovered as antiviral cytokines, interferons (IFNs) are now also recognized for their capacity to inhibit the growth of malignant cells via activation of programmed cell death, better known as apoptosis. In this review, we will cover recent advances made in this field, as it pertains to the various proposed mechanisms of IFN-induced apoptosis and the characterization of IFN-responsive genes not previously known to have apoptotic function. Also mentioned here is a description of the activation and crosstalk of survival signaling pathways as a mode of IFN resistance that remains a persistent clinical adversary to overcome and the future of IFNs as antitumor agents.
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Affiliation(s)
- Kevin P Kotredes
- Department of Biochemistry, Temple University School of Medicine , Philadelphia, PA 19140, USA
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26
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Abraham R, Mudaliar P, Padmanabhan A, Sreekumar E. Induction of cytopathogenicity in human glioblastoma cells by chikungunya virus. PLoS One 2013; 8:e75854. [PMID: 24086645 PMCID: PMC3783433 DOI: 10.1371/journal.pone.0075854] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Accepted: 08/22/2013] [Indexed: 01/01/2023] Open
Abstract
Chikungunya virus (CHIKV), an arthritogenic old-world alphavirus, has been implicated in the central nervous system (CNS) infection in infants and elderly patients. Astrocytes are the major immune cells of the brain parenchyma that mediate inflammation. In the present study we found that a local isolate of CHIKV infect and activate U-87 MG cells, a glioblastoma cell line of human astrocyte origin. The infection kinetics were similar in infected U-87 MG cells and the human embryo kidney (HEK293) cells as indicated by immunofluorescence and plaque assays, 24h post-infection (p.i.). In infected U-87 MG cells, apoptosis was detectable from 48h p.i. evidenced by DNA fragmentation, PARP cleavage, loss of mitochondrial membrane potential, nuclear condensation and visible cytopathic effects in a dose and time-dependent manner. XBP1 mRNA splicing and eIF2α phosphorylation studies indicated the occurrence of endoplasmic reticulum stress in infected cells. In U-87 MG cells stably expressing a green fluorescent protein-tagged light chain-3 (GFP-LC3) protein, CHIKV infection showed increased autophagy response. The infection led to an enhanced expression of the mRNA transcripts of the pro-inflammatory cytokines IL-1β, TNF-α, IL-6 and CXCL9 within 24h p.i. Significant up-regulation of the proteins of RIG-I like receptor (RLR) pathway, such as RIG-I and TRAF-6, was observed indicating the activation of the cytoplasmic-cellular innate immune response. The overall results show that the U-87 MG cell line is a potential in vitro model for in depth study of these molecular pathways in response to CHIKV infection. The responses in these cells of CNS origin, which are inherently defective in Type I interferon response, could be analogous to that occurring in infants and very old patients who also have a compromised interferon-response. The results also point to the intriguing possibility of using this virus for studies to develop oncolytic virus therapy approaches against glioblastoma, a highly aggressive malignancy.
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Affiliation(s)
- Rachy Abraham
- Viral Disease Biology Program, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala, India
| | - Prashant Mudaliar
- Viral Disease Biology Program, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala, India
| | - Aiswaria Padmanabhan
- Viral Disease Biology Program, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala, India
| | - Easwaran Sreekumar
- Viral Disease Biology Program, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala, India
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27
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Manini I, Sgorbissa A, Potu H, Tomasella A, Brancolini C. The DeISGylase USP18 limits TRAIL-induced apoptosis through the regulation of TRAIL levels: Cellular levels of TRAIL influences responsiveness to TRAIL-induced apoptosis. Cancer Biol Ther 2013; 14:1158-66. [PMID: 24153058 DOI: 10.4161/cbt.26525] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is a promising molecule for anti-cancer therapies. Unfortunately, cancer cells frequently acquire resistance to rhTRAIL. Various co-treatments have been proposed to overcome apoptosis resistance to TRAIL. Here we show that downregulation of the deISGylase USP18 sensitizes cancer cells to rhTRAIL, whereas, elevate levels of USP18 inhibit TRAIL-induced apoptosis, in a deISGylase-independent manner. USP18 influences TRAIL signaling through the control of the IFN autocrine loop. In fact, cells with downregulated USP18 expression augment the expression of cellular TRAIL. Downregulation of cellular TRAIL abrogates the synergism between TRAIL and USP18 siRNA and also limits cell death induced by rhTRAIL. By comparing the apoptotic responsiveness to TRAIL in a panel of cancer cell lines, we have discovered a correlation between TRAIL levels and the apoptotic susceptibility to rhTRAIL, In cells expressing high levels of TRAIL-R2 susceptibility to rhTRAIL correlates with TRAIL expression. In conclusion, we propose that cellular TRAIL is an additional factor that can influence the apoptotic response to rhTRAIL.
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Affiliation(s)
- Ivana Manini
- Dipartimento di Scienze Mediche e Biologiche and MATI Center of Excellence; Università degli Studi di Udine; Udine, Italy
| | - Andrea Sgorbissa
- Dipartimento di Scienze Mediche e Biologiche and MATI Center of Excellence; Università degli Studi di Udine; Udine, Italy
| | - Harish Potu
- Dipartimento di Scienze Mediche e Biologiche and MATI Center of Excellence; Università degli Studi di Udine; Udine, Italy
| | - Andrea Tomasella
- Dipartimento di Scienze Mediche e Biologiche and MATI Center of Excellence; Università degli Studi di Udine; Udine, Italy
| | - Claudio Brancolini
- Dipartimento di Scienze Mediche e Biologiche and MATI Center of Excellence; Università degli Studi di Udine; Udine, Italy
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28
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Nayernia Z, Turchi L, Cosset E, Peterson H, Dutoit V, Dietrich PY, Tirefort D, Chneiweiss H, Lobrinus JA, Krause KH, Virolle T, Preynat-Seauve O. The relationship between brain tumor cell invasion of engineered neural tissues and in vivo features of glioblastoma. Biomaterials 2013; 34:8279-90. [PMID: 23899445 DOI: 10.1016/j.biomaterials.2013.07.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 07/01/2013] [Indexed: 12/15/2022]
Abstract
Glioblastoma is an aggressive brain tumor characterized by its high propensity for local invasion, formation of secondary foci within the brain, as well as areas of necrosis. This study aims to (i) provide a technical approach to reproduce features of the disease in vitro and (ii) characterize the tumor/host brain tissue interaction at the molecular level. Human engineered neural tissue (ENT) obtained from pluripotent stem cells was generated and co-cultured with human glioblastoma-initiating cells. Within two weeks, glioblastoma cells invaded the nervous tissue. This invasion displayed features of the disease in vivo: a primary tumor mass, diffuse migration of invading single cells into the nervous tissue, secondary foci, as well as peritumoral cell death. Through comparative molecular analyses, this model allowed the identification of more than 100 genes that are specifically induced and up-regulated by the nervous tissue/tumor interaction. Notably the type I interferon response, extracellular matrix-related genes were most highly represented and showed a significant correlation with patient survival. In conclusion, glioblastoma development within a nervous tissue can be engineered in vitro, providing a relevant model to study the disease and allows the identification of clinically-relevant genes induced by the tumor/host tissue interaction.
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Affiliation(s)
- Zeynab Nayernia
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland
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29
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Yin D, Zhai Y, Gruber HE, Ibanez CE, Robbins JM, Kells AP, Kasahara N, Forsayeth J, Jolly DJ, Bankiewicz KS. Convection-enhanced delivery improves distribution and efficacy of tumor-selective retroviral replicating vectors in a rodent brain tumor model. Cancer Gene Ther 2013; 20:336-41. [PMID: 23703472 PMCID: PMC3733370 DOI: 10.1038/cgt.2013.25] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
In the present study, we compared the therapeutic effect of tumor-selective retroviral replicating vectors (RRV) expressing the yeast cytosine deaminase (CD) delivered by CED or simple injection, followed by systemic administration of the pro-drug, 5-fluorocytosine (5-FC). Treatment with RRV-CD and systemic 5-FC significantly increased survival in rodent U87MG glioma model in comparison to controls (p<0.01). Interestingly, CED of RRV-CD followed by 5-FC further enhanced survival in this animal model in comparison to intra-tumoral injection of RRV-CD followed by systemic 5-FC (p<0.05). High expression levels of Ki-67 were found in untreated tumors compared to treated. Untreated tumors were also much larger than treated. CED resulted in excellent distribution of RRV while only partial distribution of RRV was obtained after injection. Furthermore, RRV-CD and cytosine deaminase were also found in tumors from treated rats at study end-points. These results demonstrated that RRV vectors may efficiently transduce and stably propagate in malignant human glioma, thereby achieving a significant in-situ amplification effect after initial administration. We conclude that delivery of RRV into the glioma by CED provides much wider vector distribution than simple, injection, and this correlated with better therapeutic outcomes.
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Affiliation(s)
- D Yin
- Department of Neurosurgery, University of California San Francisco, San Francisco, CA 94103, USA
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30
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Plasmacytoid dendritic cells in the tumor microenvironment: immune targets for glioma therapeutics. Neoplasia 2013; 14:757-70. [PMID: 22952428 DOI: 10.1593/neo.12794] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Revised: 07/10/2012] [Accepted: 07/11/2012] [Indexed: 01/19/2023] Open
Abstract
Adenovirus-mediated delivery of the immune-stimulatory cytokine Flt3L and the conditionally cytotoxic thymidine kinase (TK) induces tumor regression and long-term survival in preclinical glioma (glioblastoma multiforme [GBM]) models. Flt3L induces expansion and recruitment of plasmacytoid dendritic cells (pDCs) into the brain. Although pDCs can present antigen and produce powerful inflammatory cytokines, that is, interferon α (IFN-α), their role in tumor immunology remains debated. Thus, we studied the role of pDCs and IFN-α in Ad.TK/GCV+ Ad.Flt3L-mediated anti-GBM therapeutic efficacy. Our data indicate that the combined gene therapy induced recruitment of plasmacytoid DCs (pDCs) into the tumor mass; which were capable of in vivo phagocytosis, IFN-α release, and T-cell priming. Thus, we next used either pDCs or an Ad vector encoding IFN-α delivered within the tumor microenvironment. When rats were treated with Ad.TK/GCV in combination with pDCs or Ad-IFN-α, they exhibited 35% and 50% survival, respectively. However, whereas intracranial administration of Ad.TK/GCV + Ad.Flt3L exhibited a high safety profile, Ad-IFN-α led to severe local inflammation, with neurologic and systemic adverse effects. To elucidate whether the efficacy of the immunotherapy was dependent on IFN-α-secreting pDCs, we administered an Ad vector encoding B18R, an IFN-α antagonist, which abrogated the antitumoral effect of Ad.TK/GCV + Ad.Flt3L. Our data suggest that IFN-α release by activated pDCs plays a critical role in the antitumor effect mediated by Ad.TK/GCV + Ad.Flt3L. In summary, taken together, our results demonstrate that pDCs mediate anti-GBM therapeutic efficacy through the production of IFN-α, thus manipulation of pDCs constitutes an attractive new therapeutic target for the treatment of GBM.
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31
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Tetra-O-methyl nordihydroguaiaretic acid, an inhibitor of Sp1-mediated survivin transcription, induces apoptosis and acts synergistically with chemo-radiotherapy in glioblastoma cells. Invest New Drugs 2013; 31:858-70. [DOI: 10.1007/s10637-012-9917-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Accepted: 12/14/2012] [Indexed: 12/12/2022]
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32
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Biswas M, Kumar SR, Allen A, Yong W, Nimmanapalli R, Samal SK, Elankumaran S. Cell-type-specific innate immune response to oncolytic Newcastle disease virus. Viral Immunol 2012; 25:268-76. [PMID: 22808996 PMCID: PMC3413068 DOI: 10.1089/vim.2012.0020] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Accepted: 04/06/2012] [Indexed: 01/04/2023] Open
Abstract
Virotherapy of cancer exploits the potential of naturally occurring and engineered oncolytic viruses to selectively replicate in and cause cytotoxicity to tumor cells without affecting healthy normal cells. The tumor selectivity of Newcastle disease virus (NDV), a member of the family Paramyxoviridae, depends on the differential type I interferon (IFN) response. Further understanding of the key mechanisms and immune effector molecules involved will aid in augmenting the oncolytic properties of NDV. Here we report on the infection kinetics and innate immune responses to a recombinant LaSota strain of NDV (rLaSota eGFP) in human tumor and normal cells. We observed varying replicative fit and cytotoxicity of rLaSota eGFP depending on the tumor cell type, with severely restricted replication in normal cells. The absence of retinoic acid-inducible gene I (RIG-I), a cytosolic RNA sensor, determined sensitivity to NDV. Productive NDV infection with a moderate IFN-α induction in human multiple myeloma cells suggested a role for IFN-independent mechanisms or lack of type I IFN reinforcement by RIG-I. Proinflammatory cytokines and chemokines were altered differentially in infected normal and tumor cells. Our results suggest that tumor selectivity is dependent on variations in the cellular antiviral response to infection with NDV and RIG-I expression.
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Affiliation(s)
- Moanaro Biswas
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, Virginia
| | - Sandeep R.P. Kumar
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, Virginia
| | - Adria Allen
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, Virginia
| | - Wang Yong
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, Virginia
| | | | - Siba K. Samal
- Virginia-Maryland Regional College of Veterinary Medicine, University of Maryland, College Park, Maryland
| | - Subbiah Elankumaran
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, Virginia
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33
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Borges KS, Castro-Gamero AM, Moreno DA, da Silva Silveira V, Brassesco MS, de Paula Queiroz RG, de Oliveira HF, Carlotti CG, Scrideli CA, Tone LG. Inhibition of Aurora kinases enhances chemosensitivity to temozolomide and causes radiosensitization in glioblastoma cells. J Cancer Res Clin Oncol 2011; 138:405-14. [DOI: 10.1007/s00432-011-1111-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Accepted: 11/28/2011] [Indexed: 10/14/2022]
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