1
|
Hamdan A, Chou C, Rust D, Strand A. Epstein-Barr Virus-Associated Aggressive Natural Killer Cell Leukemia: Challenges and Emerging Therapies. Cureus 2024; 16:e66338. [PMID: 39246900 PMCID: PMC11377852 DOI: 10.7759/cureus.66338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/27/2024] [Indexed: 09/10/2024] Open
Abstract
A 24-year-old Ecuadorian female, previously diagnosed with acute fatty liver (AFL) during pregnancy, developed constitutional symptoms, jaundice, and abdominal pain in a subsequent pregnancy, prompting investigations that suggested a recurrence of AFL. She underwent an elective abortion, which resulted in the resolution of her abdominal pain, and a liver biopsy, which showed granulomatous inflammation and lymphocytic infiltration. She later presented with abdominal distention, productive cough, and persistent constitutional symptoms and jaundice. Extensive laboratory and imaging studies indicated sepsis, acute liver injury, and disseminated intravascular coagulopathy. Her serum Epstein-Barr virus (EBV) level was elevated. Special staining of her previous liver biopsy revealed EBV-positive natural killer (NK) cells. A bone marrow biopsy also revealed EBV-positive NK cells. She was diagnosed with aggressive NK cell leukemia (ANKL) with or without chronic active EBV (CAEBV). Treatment included dexamethasone, atovaquone, bortezomib, and ganciclovir, with plans for a stem cell transplant. However, her course was complicated by infections and multi-organ failure, resulting in her passing. This case highlights the rarity and challenges in managing EBV-associated ANKL, emphasizing the need for early detection and improved treatment options, with stem cell transplantation offering the best prognosis.
Collapse
Affiliation(s)
- Ahmad Hamdan
- Infectious Diseases, Tufts Medical Center, Boston, USA
| | - Chun Chou
- Internal Medicine, University of Pennsylvania, Philadelphia, USA
| | - Daniel Rust
- Pathology, Tufts Medical Center, Boston, USA
| | - Andrew Strand
- Infectious Disease, Tufts Medical Center, Boston, USA
| |
Collapse
|
2
|
Salnikov MY, MacNeil KM, Mymryk JS. The viral etiology of EBV-associated gastric cancers contributes to their unique pathology, clinical outcomes, treatment responses and immune landscape. Front Immunol 2024; 15:1358511. [PMID: 38596668 PMCID: PMC11002251 DOI: 10.3389/fimmu.2024.1358511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 03/14/2024] [Indexed: 04/11/2024] Open
Abstract
Epstein-Barr virus (EBV) is a pathogen known to cause a number of malignancies, often taking years for them to develop after primary infection. EBV-associated gastric cancer (EBVaGC) is one such malignancy, and is an immunologically, molecularly and pathologically distinct entity from EBV-negative gastric cancer (EBVnGC). In comparison with EBVnGCs, EBVaGCs overexpress a number of immune regulatory genes to help form an immunosuppressive tumor microenvironment (TME), have improved prognosis, and overall have an "immune-hot" phenotype. This review provides an overview of the histopathology, clinical features and clinical outcomes of EBVaGCs. We also summarize the differences between the TMEs of EBVaGCs and EBVnGCs, which includes significant differences in cell composition and immune infiltration. A list of available EBVaGC and EBVnGC gene expression datasets and computational tools are also provided within this review. Finally, an overview is provided of the various chemo- and immuno-therapeutics available in treating gastric cancers (GCs), with a focus on EBVaGCs.
Collapse
Affiliation(s)
- Mikhail Y. Salnikov
- Department of Microbiology and Immunology, Western University, London, ON, Canada
| | - Katelyn M. MacNeil
- Department of Microbiology and Immunology, Western University, London, ON, Canada
| | - Joe S. Mymryk
- Department of Microbiology and Immunology, Western University, London, ON, Canada
- Department of Oncology, Western University, London, ON, Canada
- Department of Otolaryngology, Western University, London, ON, Canada
- Lawson Health Research Institute, London, ON, Canada
| |
Collapse
|
3
|
Liu C, Zheng D, Pu X, Li S. HDAC7: a promising target in cancer. Front Oncol 2024; 14:1327933. [PMID: 38487728 PMCID: PMC10939994 DOI: 10.3389/fonc.2024.1327933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 02/14/2024] [Indexed: 03/17/2024] Open
Abstract
Histones have a vital function as components of nucleosomes, which serve as the fundamental building blocks of chromatin. Histone deacetylases (HDACs), which target histones, suppress gene transcription by compacting chromatin. This implies that HDACs have a strong connection to the suppression of gene transcription. Histone deacetylase 7 (HDAC7), a member of the histone deacetylase family, may participate in multiple cellular pathophysiological processes and activate relevant signaling pathways to facilitate the progression of different tumors by exerting deacetylation. In recent years, HDAC7 has been increasingly studied in the pathogenesis of tumors. Studies that are pertinent have indicated that it has a significant impact on the growth and metastasis of tumors, the formation of the vascular microenvironment, and the emergence of resistance to drugs. Therefore, HDAC7 could potentially function as a potent predictor for tumor prognosis and a promising target for mitigating drug resistance in tumors. This review primarily concentrates on elucidating the structure and function of HDAC7, its involvement in the development of various tumors, and its interplay with relevant signaling pathways. Meanwhile, we briefly discuss the research direction and prospect of HDAC7.
Collapse
Affiliation(s)
| | | | | | - Sijun Li
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| |
Collapse
|
4
|
Hartman-Houstman H, Swenson S, Minea RO, Sinha UK, Chiang MF, Chen TC, Schönthal AH. Activation of Epstein-Barr Virus' Lytic Cycle in Nasopharyngeal Carcinoma Cells by NEO212, a Conjugate of Perillyl Alcohol and Temozolomide. Cancers (Basel) 2024; 16:936. [PMID: 38473298 DOI: 10.3390/cancers16050936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 01/27/2024] [Accepted: 02/14/2024] [Indexed: 03/14/2024] Open
Abstract
The Epstein-Barr virus (EBV) is accepted as a primary risk factor for certain nasopharyngeal carcinoma (NPC) subtypes, where the virus persists in a latent stage which is thought to contribute to tumorigenesis. Current treatments are sub-optimal, and recurrence occurs in many cases. An alternative therapeutic concept is aimed at triggering the lytic cycle of EBV selectively in tumor cells as a means to add clinical benefit. While compounds able to stimulate the lytic cascade have been identified, their clinical application so far has been limited. We are developing a novel anticancer molecule, NEO212, that was generated by covalent conjugation of the alkylating agent temozolomide (TMZ) to the naturally occurring monoterpene perillyl alcohol (POH). In the current study, we investigated its potential to trigger the lytic cycle of EBV in NPC cells in vitro and in vivo. We used the established C666.1 cell line and primary patient cells derived from the brain metastasis of a patient with NPC, both of which harbored latent EBV. Upon treatment with NEO212, there was an increase in EBV proteins Zta and Ea-D, key markers of the lytic cycle, along with increased levels of CCAAT/enhancer-binding protein homologous protein (CHOP), a marker of endoplasmic reticulum (ER) stress, followed by the activation of caspases. These effects could also be confirmed in tumor tissue from mice implanted with C666.1 cells. Towards a mechanistic understanding of these events, we used siRNA-mediated knockdown of CHOP and inclusion of anti-oxidant compounds. Both approaches blocked lytic cycle induction by NEO212. Therefore, we established a sequence of events, where NEO212 caused reactive oxygen species (ROS) production, which triggered ER stress and elevated the levels of CHOP, which was required to stimulate the lytic cascade of EBV. Inclusion of the antiviral agent ganciclovir synergistically enhanced the cytotoxic impact of NEO212, pointing to a potential combination treatment for EBV-positive cancers which should be explored further. Overall, our study establishes NEO212 as a novel agent able to stimulate EBV's lytic cycle in NPC tumors, with implications for other virus-associated cancers.
Collapse
Affiliation(s)
- Hannah Hartman-Houstman
- Department of Molecular Microbiology & Immunology, Keck School of Medicine, University of Southern California (USC), Los Angeles, CA 90089, USA
| | - Steve Swenson
- Department of Neurosurgery, Keck School of Medicine, USC, Los Angeles, CA 90089, USA
| | - Radu O Minea
- Department of Neurosurgery, Keck School of Medicine, USC, Los Angeles, CA 90089, USA
- USC/Norris Comprehensive Cancer Center, Los Angeles, CA 90033, USA
| | - Uttam K Sinha
- USC/Norris Comprehensive Cancer Center, Los Angeles, CA 90033, USA
- Department of Otolaryngology, Keck School of Medicine, USC, Los Angeles, CA 90089, USA
| | - Ming-Fu Chiang
- Department of Neurosurgery, Fu Jen Catholic University Hospital, New Taipei City 24352, Taiwan
| | - Thomas C Chen
- Department of Neurosurgery, Keck School of Medicine, USC, Los Angeles, CA 90089, USA
- USC/Norris Comprehensive Cancer Center, Los Angeles, CA 90033, USA
- NeOnc Technologies, Inc., Los Angeles, CA 90069, USA
| | - Axel H Schönthal
- Department of Molecular Microbiology & Immunology, Keck School of Medicine, University of Southern California (USC), Los Angeles, CA 90089, USA
| |
Collapse
|
5
|
Kong IY, Giulino-Roth L. Targeting latent viral infection in EBV-associated lymphomas. Front Immunol 2024; 15:1342455. [PMID: 38464537 PMCID: PMC10920267 DOI: 10.3389/fimmu.2024.1342455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 02/05/2024] [Indexed: 03/12/2024] Open
Abstract
Epstein-Barr virus (EBV) contributes to the development of a significant subset of human lymphomas. As a herpes virus, EBV can transition between a lytic state which is required to establish infection and a latent state where a limited number of viral antigens are expressed which allows infected cells to escape immune surveillance. Three broad latency programs have been described which are defined by the expression of viral proteins RNA, with latency I being the most restrictive expressing only EBV nuclear antigen 1 (EBNA1) and EBV-encoded small RNAs (EBERs) and latency III expressing the full panel of latent viral genes including the latent membrane proteins 1 and 2 (LMP1/2), and EBNA 2, 3, and leader protein (LP) which induce a robust T-cell response. The therapeutic use of EBV-specific T-cells has advanced the treatment of EBV-associated lymphoma, however this approach is only effective against EBV-associated lymphomas that express the latency II or III program. Latency I tumors such as Burkitt lymphoma (BL) and a subset of diffuse large B-cell lymphomas (DLBCL) evade the host immune response to EBV and are resistant to EBV-specific T-cell therapies. Thus, strategies for inducing a switch from the latency I to the latency II or III program in EBV+ tumors are being investigated as mechanisms to sensitize tumors to T-cell mediated killing. Here, we review what is known about the establishment and regulation of latency in EBV infected B-cells, the role of EBV-specific T-cells in lymphoma, and strategies to convert latency I tumors to latency II/III.
Collapse
|
6
|
Dutta S, Ganguly A, Ghosh Roy S. An Overview of the Unfolded Protein Response (UPR) and Autophagy Pathways in Human Viral Oncogenesis. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2024; 386:81-131. [PMID: 38782502 DOI: 10.1016/bs.ircmb.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Autophagy and Unfolded Protein Response (UPR) can be regarded as the safe keepers of cells exposed to intense stress. Autophagy maintains cellular homeostasis, ensuring the removal of foreign particles and misfolded macromolecules from the cytoplasm and facilitating the return of the building blocks into the system. On the other hand, UPR serves as a shock response to prolonged stress, especially Endoplasmic Reticulum Stress (ERS), which also includes the accumulation of misfolded proteins in the ER. Since one of the many effects of viral infection on the host cell machinery is the hijacking of the host translational system, which leaves in its wake a plethora of misfolded proteins in the ER, it is perhaps not surprising that UPR and autophagy are common occurrences in infected cells, tissues, and patient samples. In this book chapter, we try to emphasize how UPR, and autophagy are significant in infections caused by six major oncolytic viruses-Epstein-Barr (EBV), Human Papilloma Virus (HPV), Human Immunodeficiency Virus (HIV), Human Herpesvirus-8 (HHV-8), Human T-cell Lymphotropic Virus (HTLV-1), and Hepatitis B Virus (HBV). Here, we document how whole-virus infection or overexpression of individual viral proteins in vitro and in vivo models can regulate the different branches of UPR and the various stages of macro autophagy. As is true with other viral infections, the relationship is complicated because the same virus (or the viral protein) exerts different effects on UPR and Autophagy. The nature of this response is determined by the cell types, or in some cases, the presence of diverse extracellular stimuli. The vice versa is equally valid, i.e., UPR and autophagy exhibit both anti-tumor and pro-tumor properties based on the cell type and other factors like concentrations of different metabolites. Thus, we have tried to coherently summarize the existing knowledge, the crux of which can hopefully be harnessed to design vaccines and therapies targeted at viral carcinogenesis.
Collapse
Affiliation(s)
- Shovan Dutta
- Center for Immunotherapy & Precision Immuno-Oncology (CITI), Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Anirban Ganguly
- Department of Biochemistry, All India Institute of Medical Sciences, Deoghar, Jharkhand, India
| | - Sounak Ghosh Roy
- Henry M Jackson for the Advancement of Military Medicine, Naval Medical Research Command, Silver Spring, MD, United States.
| |
Collapse
|
7
|
Mohammadzamani M, Kazemzadeh K, Chand S, Thapa S, Ebrahimi N, Yazdan Panah M, Shaygannejad V, Mirmosayyeb O. Insights into the interplay between Epstein-Barr virus (EBV) and multiple sclerosis (MS): A state-of-the-art review and implications for vaccine development. Health Sci Rep 2024; 7:e1898. [PMID: 38361801 PMCID: PMC10867693 DOI: 10.1002/hsr2.1898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 11/12/2023] [Accepted: 01/15/2024] [Indexed: 02/17/2024] Open
Abstract
Background and Aims Multiple sclerosis (MS) is a chronic autoimmune disease of the central nervous system (CNS). MS results from an inflammatory process leading to the loss of neural tissue and increased disability over time. The role of Epstein Barr Virus (EBV), as one of the most common global viruses, in MS development has been the subject of several studies. However, many related questions are still unanswered. This study aimed to review the connection between MS and EBV and provide a quick outline of MS prevention using EBV vaccination. Methods For this narrative review, an extensive literature search using specific terms was conducted across online databases, including PubMed/Medline, Scopus, Web of Science, and Google Scholar, to identify pertinent studies. Results Several studies proved that almost 100% of people with MS showed a history of EBV infection, and there was an association between high titers of EBV antibodies and an increased risk of MS development. Various hypotheses are proposed for how EBV may contribute to MS directly and indirectly: (1) Molecular Mimicry, (2) Mistaken Self, (3) Bystander Damage, and (4) Autoreactive B cells infected with EBV. Conclusion Given the infectious nature of EBV and its ability to elude the immune system, EBV emerges as a strong candidate for being the underlying cause of MS. The development of an EBV vaccine holds promise for preventing MS; however, overcoming the challenge of creating a safe and efficacious vaccine presents a significant obstacle.
Collapse
Affiliation(s)
- Mahtab Mohammadzamani
- Isfahan Neurosciences Research CenterIsfahan University of Medical SciencesIsfahanIran
| | - Kimia Kazemzadeh
- Students' Scientific Research CenterTehran University of Medical SciencesTehranIran
| | - Swati Chand
- Westchester Medical CenterNew York Medical CollegeValhallaNew YorkUSA
| | - Sangharsha Thapa
- Department of Neurology, Westchester Medical CenterNew York Medical CollegeValhallaUSA
| | - Narges Ebrahimi
- Isfahan Neurosciences Research CenterIsfahan University of Medical SciencesIsfahanIran
| | | | - Vahid Shaygannejad
- Isfahan Neurosciences Research CenterIsfahan University of Medical SciencesIsfahanIran
- Department of NeurologyIsfahan University of Medical SciencesIsfahanIran
| | - Omid Mirmosayyeb
- Isfahan Neurosciences Research CenterIsfahan University of Medical SciencesIsfahanIran
- Department of NeurologyIsfahan University of Medical SciencesIsfahanIran
| |
Collapse
|
8
|
Ward BJH, Prasai K, Schaal DL, Wang J, Scott RS. A distinct isoform of lymphoid enhancer binding factor 1 (LEF1) epigenetically restricts EBV reactivation to maintain viral latency. PLoS Pathog 2023; 19:e1011873. [PMID: 38113273 PMCID: PMC10763950 DOI: 10.1371/journal.ppat.1011873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 01/03/2024] [Accepted: 11/29/2023] [Indexed: 12/21/2023] Open
Abstract
As a human tumor virus, EBV is present as a latent infection in its associated malignancies where genetic and epigenetic changes have been shown to impede cellular differentiation and viral reactivation. We reported previously that levels of the Wnt signaling effector, lymphoid enhancer binding factor 1 (LEF1) increased following EBV epithelial infection and an epigenetic reprogramming event was maintained even after loss of the viral genome. Elevated LEF1 levels are also observed in nasopharyngeal carcinoma and Burkitt lymphoma. To determine the role played by LEF1 in the EBV life cycle, we used in silico analysis of EBV type 1 and 2 genomes to identify over 20 Wnt-response elements, which suggests that LEF1 may bind directly to the EBV genome and regulate the viral life cycle. Using CUT&RUN-seq, LEF1 was shown to bind the latent EBV genome at various sites encoding viral lytic products that included the immediate early transactivator BZLF1 and viral primase BSLF1 genes. The LEF1 gene encodes various long and short protein isoforms. siRNA depletion of specific LEF1 isoforms revealed that the alternative-promoter derived isoform with an N-terminal truncation (ΔN LEF1) transcriptionally repressed lytic genes associated with LEF1 binding. In addition, forced expression of the ΔN LEF1 isoform antagonized EBV reactivation. As LEF1 repression requires histone deacetylase activity through either recruitment of or direct intrinsic histone deacetylase activity, siRNA depletion of LEF1 resulted in increased histone 3 lysine 9 and lysine 27 acetylation at LEF1 binding sites and across the EBV genome. Taken together, these results indicate a novel role for LEF1 in maintaining EBV latency and restriction viral reactivation via repressive chromatin remodeling of critical lytic cycle factors.
Collapse
Affiliation(s)
- B. J. H. Ward
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
- Center for Applied Immunology and Pathological Processes, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
| | - Kanchanjunga Prasai
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
| | - Danielle L. Schaal
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
- Center for Applied Immunology and Pathological Processes, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
| | - Jian Wang
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
- Center for Applied Immunology and Pathological Processes, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
| | - Rona S. Scott
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
- Center for Applied Immunology and Pathological Processes, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
| |
Collapse
|
9
|
Xu L, Zhang M, Tu D, Lu Z, Lu T, Ma D, Zhou Y, Zhang S, Ma Y, Yan D, Wang X, Sang W. Chidamide Induces Epstein-Barr Virus (EBV) Lytic Infection and Acts Synergistically with Tenofovir to Eliminate EBV-Positive Burkitt Lymphoma. J Pharmacol Exp Ther 2023; 387:288-298. [PMID: 37875309 DOI: 10.1124/jpet.123.001583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 09/19/2023] [Accepted: 09/25/2023] [Indexed: 10/26/2023] Open
Abstract
Epstein-Barr virus (EBV) is a type of human γ-herpesvirus, and its reactivation plays an important role in the development of EBV-driven Burkitt lymphoma (BL). Despite intensive chemotherapy, the prognosis of relapsed/refractory BL patients remains unfavorable, and a definitive method to completely eliminate latent EBV infection is lacking. Previous studies have demonstrated that histone deacetylase (HDAC) inhibitors can induce the transition of EBV from latency to the lytic phase. The lytic activation of EBV can be inhibited by tenofovir, a potent inhibitor of DNA replication. Herein, we explored the antitumor effect and EBV clearance potential of a novel HDAC inhibitor called chidamide, combined with tenofovir, in the treatment of EBV-positive BL. In the study, chidamide exhibited inhibitory activity against HDAC. Moreover, chidamide inhibited BL cell proliferation, arrested cell cycle progression, and induced BL cell apoptosis primarily by regulating the MAPK pathways. Additionally, chidamide promoted the transcription of lytic genes, including BZLF1, BMRF1, and BMLF1 Compared with chidamide alone, the addition of tenofovir further induced growth arrest and apoptosis in EBV-positive BL cells and inhibited the transcriptions of EBV lytic genes induced by chidamide alone. Furthermore, our in vivo data demonstrated that the combination of chidamide and tenofovir had superior tumor-suppressive effects in a mouse model of BL cell tumors. The aforementioned findings confirm the synergistic effect of chidamide combined with tenofovir in inducing growth inhibition and apoptosis in EBV-positive BL cells and provide an effective strategy for eliminating EBV and EBV-associated malignancies. SIGNIFICANCE STATEMENT: High levels of Epstein-Barr virus (EBV)-DNA have consistently been associated with unfavorable progression-free survival and overall survival in EBV-associated lymphomas. Therefore, identifying novel strategies to effectively eradicate tumor cells and eliminate EBV is crucial for lymphoma patients. This study confirmed, for the first time, the synergistic effect of chidamide combined with tenofovir in the treatment of Burkitt lymphoma and the eradication of EBV virus.
Collapse
Affiliation(s)
- Linyan Xu
- 1Blood Diseases Institute (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Key Laboratory of Bone Marrow Stem Cell (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.), Xuzhou Medical University, Xuzhou, China; and Departments of Hematology (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Pathology (D.M.), the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Meng Zhang
- 1Blood Diseases Institute (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Key Laboratory of Bone Marrow Stem Cell (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.), Xuzhou Medical University, Xuzhou, China; and Departments of Hematology (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Pathology (D.M.), the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Dongyun Tu
- 1Blood Diseases Institute (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Key Laboratory of Bone Marrow Stem Cell (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.), Xuzhou Medical University, Xuzhou, China; and Departments of Hematology (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Pathology (D.M.), the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Ziyi Lu
- 1Blood Diseases Institute (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Key Laboratory of Bone Marrow Stem Cell (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.), Xuzhou Medical University, Xuzhou, China; and Departments of Hematology (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Pathology (D.M.), the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Tianyi Lu
- 1Blood Diseases Institute (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Key Laboratory of Bone Marrow Stem Cell (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.), Xuzhou Medical University, Xuzhou, China; and Departments of Hematology (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Pathology (D.M.), the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Dongshen Ma
- 1Blood Diseases Institute (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Key Laboratory of Bone Marrow Stem Cell (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.), Xuzhou Medical University, Xuzhou, China; and Departments of Hematology (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Pathology (D.M.), the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yi Zhou
- 1Blood Diseases Institute (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Key Laboratory of Bone Marrow Stem Cell (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.), Xuzhou Medical University, Xuzhou, China; and Departments of Hematology (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Pathology (D.M.), the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Shuo Zhang
- 1Blood Diseases Institute (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Key Laboratory of Bone Marrow Stem Cell (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.), Xuzhou Medical University, Xuzhou, China; and Departments of Hematology (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Pathology (D.M.), the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yuhan Ma
- 1Blood Diseases Institute (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Key Laboratory of Bone Marrow Stem Cell (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.), Xuzhou Medical University, Xuzhou, China; and Departments of Hematology (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Pathology (D.M.), the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Dongmei Yan
- 1Blood Diseases Institute (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Key Laboratory of Bone Marrow Stem Cell (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.), Xuzhou Medical University, Xuzhou, China; and Departments of Hematology (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Pathology (D.M.), the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Xiangmin Wang
- 1Blood Diseases Institute (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Key Laboratory of Bone Marrow Stem Cell (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.), Xuzhou Medical University, Xuzhou, China; and Departments of Hematology (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Pathology (D.M.), the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Wei Sang
- 1Blood Diseases Institute (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Key Laboratory of Bone Marrow Stem Cell (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.), Xuzhou Medical University, Xuzhou, China; and Departments of Hematology (L.X., M.Z., D.T., Z.L., T.L., Y.Z., S.Z., Y.M., D.Y., X.W., W.S.) and Pathology (D.M.), the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| |
Collapse
|
10
|
Siak PY, Heng WS, Teoh SSH, Lwin YY, Cheah SC. Precision medicine in nasopharyngeal carcinoma: comprehensive review of past, present, and future prospect. J Transl Med 2023; 21:786. [PMID: 37932756 PMCID: PMC10629096 DOI: 10.1186/s12967-023-04673-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 10/29/2023] [Indexed: 11/08/2023] Open
Abstract
Nasopharyngeal carcinoma (NPC) is an aggressive malignancy with high propensity for lymphatic spread and distant metastasis. It is prominent as an endemic malignancy in Southern China and Southeast Asia regions. Studies on NPC pathogenesis mechanism in the past decades such as through Epstein Barr Virus (EBV) infection and oncogenic molecular aberrations have explored several potential targets for therapy and diagnosis. The EBV infection introduces oncoviral proteins that consequently hyperactivate many promitotic pathways and block cell-death inducers. EBV infection is so prevalent in NPC patients such that EBV serological tests were used to diagnose and screen NPC patients. On the other hand, as the downstream effectors of oncogenic mechanisms, the promitotic pathways can potentially be exploited therapeutically. With the apparent heterogeneity and distinct molecular aberrations of NPC tumor, the focus has turned into a more personalized treatment in NPC. Herein in this comprehensive review, we depict the current status of screening, diagnosis, treatment, and prevention in NPC. Subsequently, based on the limitations on those aspects, we look at their potential improvements in moving towards the path of precision medicine. The importance of recent advances on the key molecular aberration involved in pathogenesis of NPC for precision medicine progression has also been reported in the present review. Besides, the challenge and future outlook of NPC management will also be highlighted.
Collapse
Affiliation(s)
- Pui Yan Siak
- Faculty of Medicine and Health Sciences, UCSI University, Bandar Springhill, 71010, Port Dickson, Negeri Sembilan, Malaysia
| | - Win Sen Heng
- Faculty of Medicine and Health Sciences, UCSI University, Bandar Springhill, 71010, Port Dickson, Negeri Sembilan, Malaysia
| | - Sharon Siew Hoon Teoh
- Faculty of Medicine and Health Sciences, UCSI University, Bandar Springhill, 71010, Port Dickson, Negeri Sembilan, Malaysia
| | - Yu Yu Lwin
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Medicine, Mandalay, Myanmar
| | - Shiau-Chuen Cheah
- Faculty of Medicine and Health Sciences, UCSI University, Bandar Springhill, 71010, Port Dickson, Negeri Sembilan, Malaysia.
| |
Collapse
|
11
|
Haverkos B, Alpdogan O, Baiocchi R, Brammer JE, Feldman TA, Capra M, Brem EA, Nair S, Scheinberg P, Pereira J, Shune L, Joffe E, Young P, Spruill S, Katkov A, McRae R, Royston I, Faller DV, Rojkjaer L, Porcu P. Targeted therapy with nanatinostat and valganciclovir in recurrent EBV-positive lymphoid malignancies: a phase 1b/2 study. Blood Adv 2023; 7:6339-6350. [PMID: 37530631 PMCID: PMC10587711 DOI: 10.1182/bloodadvances.2023010330] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/30/2023] [Accepted: 07/20/2023] [Indexed: 08/03/2023] Open
Abstract
Lymphomas are not infrequently associated with the Epstein-Barr virus (EBV), and EBV positivity is linked to worse outcomes in several subtypes. Nanatinostat is a class-I selective oral histone deacetylase inhibitor that induces the expression of lytic EBV BGLF4 protein kinase in EBV+ tumor cells, activating ganciclovir via phosphorylation, resulting in tumor cell apoptosis. This phase 1b/2 study investigated the combination of nanatinostat with valganciclovir in patients aged ≥18 years with EBV+ lymphomas relapsed/refractory to ≥1 prior systemic therapy with no viable curative treatment options. In the phase 1b part, 25 patients were enrolled into 5 dose escalation cohorts to determine the recommended phase 2 dose (RP2D) for phase 2 expansion. Phase 2 patients (n = 30) received RP2D (nanatinostat 20 mg daily, 4 days per week with valganciclovir 900 mg orally daily) for 28-day cycles. The primary end points were safety, RP2D determination (phase 1b), and overall response rate (ORR; phase 2). Overall, 55 patients were enrolled (B-non-Hodgkin lymphoma [B-NHL], [n = 10]; angioimmunoblastic T-cell lymphoma-NHL, [n = 21]; classical Hodgkin lymphoma, [n = 11]; and immunodeficiency-associated lymphoproliferative disorders, [n = 13]). The ORR was 40% in 43 evaluable patients (complete response rate [CRR], 19% [n = 8]) with a median duration of response of 10.4 months. For angioimmunoblastic T-cell lymphoma-NHL (n = 15; all refractory to the last prior therapy), the ORR/CRR ratio was 60%/27%. The most common adverse events were nausea (38% any grade) and cytopenia (grade 3/4 neutropenia [29%], thrombocytopenia [20%], and anemia [20%]). This novel oral regimen provided encouraging efficacy across several EBV+ lymphoma subtypes and warrants further evaluation; a confirmatory phase 2 study (NCT05011058) is underway. This phase 1b/2 study is registered at www.clinicaltrials.gov as #NCT03397706.
Collapse
Affiliation(s)
| | - Onder Alpdogan
- Division of Hematologic Malignancies and Hematopoetic Stem Cell Transplantation, Department of Medical Oncology, Thomas Jefferson University Hospital, Philadelphia, PA
| | - Robert Baiocchi
- The Ohio State University James Comprehensive Cancer Center, Columbus, OH
| | | | - Tatyana A. Feldman
- John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ
| | - Marcelo Capra
- Centro Integrado de Hematologia e Oncologia - Hospital Mãe de Deus, Porto Alegre, Brazil
| | - Elizabeth A. Brem
- Division of Hematology/Oncology, Deptartment of Medicine, University of California, Irvine, Orange, CA
| | - Santosh Nair
- Mid Florida Hematology and Oncology Center, Orange City, FL
| | - Phillip Scheinberg
- Division of Hematology, Hospital A Beneficência Portuguesa, São Paulo, Brazil
| | - Juliana Pereira
- Division of Hematology, Hospital das Clínicas da Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Leyla Shune
- University of Kansas Cancer Center, University of Kansas Medical Center, Kansas City, KS
| | - Erel Joffe
- Memorial Sloan Kettering Cancer Center, New York, NY
| | | | | | | | | | | | | | | | - Pierluigi Porcu
- Division of Hematologic Malignancies and Hematopoetic Stem Cell Transplantation, Department of Medical Oncology, Thomas Jefferson University Hospital, Philadelphia, PA
| |
Collapse
|
12
|
Lu G, Jin S, Lin S, Gong Y, Zhang L, Yang J, Mou W, Du J. Update on histone deacetylase inhibitors in peripheral T-cell lymphoma (PTCL). Clin Epigenetics 2023; 15:124. [PMID: 37533111 PMCID: PMC10398948 DOI: 10.1186/s13148-023-01531-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 07/05/2023] [Indexed: 08/04/2023] Open
Abstract
Peripheral T-cell lymphomas (PTCLs) are a group of highly aggressive malignancies with generally poor prognoses, and the first-line chemotherapy of PTCL has limited efficacy. Currently, several novel targeted agents, including histone deacetylase inhibitors (HDACis), have been investigated to improve the therapeutic outcome of PTCLs. Several HDACis, such as romidepsin, belinostat, and chidamide, have demonstrated favorable clinical efficacy and safety in PTCLs. More novel HDACis and new combination therapies are undergoing preclinical or clinical trials. Mutation analysis based on next-generation sequencing may advance our understanding of the correlation between epigenetic mutation profiles and relevant targeted therapies. Multitargeted HDACis and HDACi-based prodrugs hold promising futures and offer further directions for drug design.
Collapse
Affiliation(s)
- Guang Lu
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
- Department of Hematology, Shengli Oilfield Central Hospital, Dongying, 257034, Shandong, People's Republic of China
| | - Shikai Jin
- Department of Clinical Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Suwen Lin
- Clinical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, 518036, Guangdong, People's Republic of China
| | - Yuping Gong
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - Liwen Zhang
- Department of Clinical Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Jingwen Yang
- Department of Clinical Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Weiwei Mou
- Department of Pediatrics, Shengli Oilfield Central Hospital, Dongying, 257034, Shandong, People's Republic of China.
| | - Jun Du
- Department of Hematology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, People's Republic of China.
| |
Collapse
|
13
|
Cordes BLA, Bilger A, Kraus RJ, Ward-Shaw ET, Labott MR, Lee S, Lambert PF, Mertz JE. Drugs That Mimic Hypoxia Selectively Target EBV-Positive Gastric Cancer Cells. Cancers (Basel) 2023; 15:1846. [PMID: 36980731 PMCID: PMC10046841 DOI: 10.3390/cancers15061846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/13/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
Latent infection of Epstein-Barr virus (EBV) is associated with lymphoid and epithelial cell cancers, including 10% of gastric carcinomas. We previously reported that hypoxia inducible factor-1α (HIF-1α) induces EBV's latent-to-lytic switch and identified several HIF-1α-stabilizing drugs that induce this viral reactivation. Here, we tested three classes of these drugs for preferential killing of the EBV-positive gastric cancer AGS-Akata cell line compared to its matched EBV-negative AGS control. We observed preferential killing with iron chelators [Deferoxamine (DFO); Deferasirox (DFX)] and a prolyl hydroxylase inhibitor (BAY 85-3934 (Molidustat)), but not with a neddylation inhibitor [MLN4924 (Pevonedistat)]. DFO and DFX also induced preferential killing of the EBV-positive gastric cancer AGS-BDneo and SNU-719 cell lines. Preferential killing was enhanced when low-dose DFX (10 μM) was combined with the antiviral prodrug ganciclovir. DFO and DFX induced lytic EBV reactivation in approximately 10% of SNU-719 and 20-30% of AGS-Akata and AGS-BDneo cells. However, neither DFO nor DFX significantly induced synthesis of lytic EBV proteins in xenografts grown in NSG mice from AGS-Akata cells above the level observed in control-treated mice. Therefore, these FDA-approved iron chelators are less effective than gemcitabine at promoting EBV reactivation in vivo despite their high specificity and efficiency in vitro.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Janet E. Mertz
- McArdle Laboratory for Cancer Research, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA; (B.-l.A.C.); (A.B.); (R.J.K.); (E.T.W.-S.); (M.R.L.); (S.L.); (P.F.L.)
| |
Collapse
|
14
|
Bjornevik K, Münz C, Cohen JI, Ascherio A. Epstein-Barr virus as a leading cause of multiple sclerosis: mechanisms and implications. Nat Rev Neurol 2023; 19:160-171. [PMID: 36759741 DOI: 10.1038/s41582-023-00775-5] [Citation(s) in RCA: 60] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2023] [Indexed: 02/11/2023]
Abstract
Epidemiological studies have provided compelling evidence that multiple sclerosis (MS) is a rare complication of infection with the Epstein-Barr virus (EBV), a herpesvirus that infects more than 90% of the global population. This link was long suspected because the risk of MS increases markedly after infectious mononucleosis (symptomatic primary EBV infection) and with high titres of antibodies to specific EBV antigens. However, it was not until 2022 that a longitudinal study demonstrated that MS risk is minimal in individuals who are not infected with EBV and that it increases over 30-fold following EBV infection. Over the past few years, a number of studies have provided clues on the underlying mechanisms, which might help us to develop more targeted treatments for MS. In this Review, we discuss the evidence linking EBV to the development of MS and the mechanisms by which the virus is thought to cause the disease. Furthermore, we discuss implications for the treatment and prevention of MS, including the use of antivirals and vaccines.
Collapse
Affiliation(s)
- Kjetil Bjornevik
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Christian Münz
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Jeffrey I Cohen
- Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD, USA
| | - Alberto Ascherio
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
- Channing Laboratory, Department of Medicine, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA.
| |
Collapse
|
15
|
Su ZY, Siak PY, Leong CO, Cheah SC. The role of Epstein-Barr virus in nasopharyngeal carcinoma. Front Microbiol 2023; 14:1116143. [PMID: 36846758 PMCID: PMC9947861 DOI: 10.3389/fmicb.2023.1116143] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 01/27/2023] [Indexed: 02/11/2023] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a metastasis-prone malignancy closely associated with the Epstein-Barr virus (EBV). Despite ubiquitous infection of EBV worldwide, NPC incidences displayed predominance in certain ethnic groups and endemic regions. The majority of NPC patients are diagnosed with advanced-stage disease, as a result of anatomical isolation and non-specific clinical manifestation. Over the decades, researchers have gained insights into the molecular mechanisms underlying NPC pathogenesis as a result of the interplay of EBV infection with several environmental and genetic factors. EBV-associated biomarkers were also used for mass population screening for the early detection of NPC. EBV and its encoded products also serve as potential targets for the development of therapeutic strategies and tumour-specific drug delivery. This review will discuss the pathogenic role of EBV in NPC and efforts in exploiting the potential of EBV-associated molecules as biomarkers and therapeutic targets. The current knowledge on the role of EBV and its associated products in NPC tumorigenesis, development and progression will offer a new outlook and potential intervention strategy against this EBV-associated malignancy.
Collapse
Affiliation(s)
- Zhi Yi Su
- Faculty of Medicine and Health Sciences, UCSI University, Bandar Springhill, Negeri Sembilan, Malaysia
| | - Pui Yan Siak
- Faculty of Medicine and Health Sciences, UCSI University, Bandar Springhill, Negeri Sembilan, Malaysia
| | - Chee-Onn Leong
- AGTC Genomics Sdn Bhd, Pusat Perdagangan Bandar, Persiaran Jalil 1, Bukit Jalil, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Shiau-Chuen Cheah
- Faculty of Medicine and Health Sciences, UCSI University, Bandar Springhill, Negeri Sembilan, Malaysia
| |
Collapse
|
16
|
Wang J, Zhong F, Li J, Yue H, Li W, Lu X. The epigenetic factor CHD4 contributes to metastasis by regulating the EZH2/β-catenin axis and acts as a therapeutic target in ovarian cancer. J Transl Med 2023; 21:38. [PMID: 36681835 PMCID: PMC9862813 DOI: 10.1186/s12967-022-03854-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 12/26/2022] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND The overall survival rate of patients with advanced ovarian cancer (OC) has remained static for several decades. Advanced ovarian cancer is known for its poor prognosis due to extensive metastasis. Epigenetic alterations contribute to tumour progression and therefore are of interest for potential therapeutic strategies. METHODS Following our previous study, we identified that CHD4, a chromatin remodelling factor, plays a strong role in ovarian cancer cell metastasis. We investigated the clinical significance of CHD4 through TCGA and GEO database analyses and explored the effect of CHD4 expression modulation and romidepsin treatment on the biological behaviour of ovarian cancer through CCK-8 and transwell assays. Bioluminescence imaging of tumours in xenografted mice was applied to determine the therapeutic effect of romidepsin. GSEA and western blotting were used to screen the regulatory mechanism of CHD4. RESULTS In ovarian cancer patient specimens, high CHD4 expression was associated with a poor prognosis. Loss of function of CHD4 in ovarian cancer cells induced suppression of migration and invasion. Mechanistically, CHD4 knockdown suppressed the expression of EZH2 and the nuclear accumulation of β-catenin. CHD4 also suppressed the metastasis of ovarian cancer cells and prevented disease progression in a mouse model. To inhibit the functions of CHD4 that are mediated by histone deacetylase, we evaluated the effect of the HDAC1/2 selective inhibitor romidepsin. Our findings indicated that treatment with romidepsin suppressed the progression of metastases in vitro and in vivo. CONCLUSIONS Collectively, our results uncovered an oncogenic function of CHD4 in ovarian cancer and provide a rationale for clinical trials of romidepsin in ovarian cancer patients.
Collapse
Affiliation(s)
- Jieyu Wang
- Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200090, China
- Shanghai Key Laboratory of Female Reproductive Endocrine-Related Disease, Fudan University, Shanghai, 200090, China
| | - Fangfang Zhong
- Department of Pathology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200090, China
| | - Jun Li
- Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200090, China
| | - Huiran Yue
- Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200090, China
| | - Wenzhi Li
- Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200090, China
- Shanghai Key Laboratory of Female Reproductive Endocrine-Related Disease, Fudan University, Shanghai, 200090, China
| | - Xin Lu
- Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200090, China.
- Shanghai Key Laboratory of Female Reproductive Endocrine-Related Disease, Fudan University, Shanghai, 200090, China.
| |
Collapse
|
17
|
Badie A, Gaiddon C, Mellitzer G. Histone Deacetylase Functions in Gastric Cancer: Therapeutic Target? Cancers (Basel) 2022; 14:5472. [PMID: 36358890 PMCID: PMC9659209 DOI: 10.3390/cancers14215472] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 10/29/2022] [Accepted: 11/01/2022] [Indexed: 09/05/2023] Open
Abstract
Gastric cancer (GC) is one of the most aggressive cancers. Therapeutic treatments are based on surgery combined with chemotherapy using a combination of platinum-based agents. However, at metastatic stages of the disease, survival is extremely low due to late diagnosis and resistance mechanisms to chemotherapies. The development of new classifications has not yet identified new prognostic markers for clinical use. The studies of epigenetic processes highlighted the implication of histone acetylation status, regulated by histone acetyltransferases (HATs) and by histone deacetylases (HDACs), in cancer development. In this way, inhibitors of HDACs (HDACis) have been developed and some of them have already been clinically approved to treat T-cell lymphoma and multiple myeloma. In this review, we summarize the regulations and functions of eighteen HDACs in GC, describing their known targets, involved cellular processes, associated clinicopathological features, and impact on survival of patients. Additionally, we resume the in vitro, pre-clinical, and clinical trials of four HDACis approved by Food and Drug Administration (FDA) in cancers in the context of GC.
Collapse
Affiliation(s)
| | | | - Georg Mellitzer
- Laboratoire Streinth, Université de Strasbourg, Inserm UMR_S 1113 IRFAC, 67200 Strasbourg, France
| |
Collapse
|
18
|
Soldan SS, Messick TE, Lieberman PM. Therapeutic approaches to Epstein-Barr virus cancers. Curr Opin Virol 2022; 56:101260. [PMID: 36174496 PMCID: PMC11058316 DOI: 10.1016/j.coviro.2022.101260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 08/14/2022] [Accepted: 08/22/2022] [Indexed: 11/27/2022]
Abstract
Epstein-Barr virus (EBV) establishes a lifelong latent infection that can be a causal agent for a diverse spectrum of cancers and autoimmune disease. A complex and dynamic viral lifecycle evades eradication by the host immune system and confounds antiviral therapeutic strategies. To date, there are no clinically approved vaccines or therapies that selectively target EBV as the underlying cause of EBV-associated disease. Here, we review the challenges and recent advances in the development of EBV-specific therapeutics for treatment of EBV-associated cancers.
Collapse
|
19
|
Ding S, Gao Y, Lv D, Tao Y, Liu S, Chen C, Huang Z, Zheng S, Hu Y, Chow LKY, Wei Y, Feng P, Dai W, Wang X, Xia Y. DNTTIP1 promotes nasopharyngeal carcinoma metastasis via recruiting HDAC1 to DUSP2 promoter and activating ERK signaling pathway. EBioMedicine 2022; 81:104100. [PMID: 35689852 PMCID: PMC9189780 DOI: 10.1016/j.ebiom.2022.104100] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 05/13/2022] [Accepted: 05/22/2022] [Indexed: 11/21/2022] Open
Abstract
Background Distant metastasis remains the leading cause of treatment failure in patients with nasopharyngeal carcinoma (NPC), making it critical to identify efficient therapeutic targets for metastatic NPC. Previous studies have demonstrated that deoxynucleotidyltransferase terminal-interacting protein 1 (DNTTIP1) is associated with the development of various types of cancer. However, its role and mechanism in NPC have not been explored. Methods RNA-seq profiling was performed for three pairs of NPC and normal nasopharynx tissues. DNTTIP1 expression in NPC specimens was detected by immunohistochemistry. In vitro and in vivo assays were used to investigate the function of DNTTIP1. The molecular mechanism was determined using RT-qPCR, western blotting, RNA-seq, luciferase reporter assays, ChIP assays, and co-IP assays. Findings DNTTIP1 was found to be significantly upregulated in NPC tissues. Furthermore, DNTTIP1 promoted NPC growth and metastasis in vitro and in vivo. Upregulation of DNTTIP1 in NPC indicated poor clinical outcomes. Mechanistically, DNTTIP1 suppressed DUSP2 gene expression via recruiting HDAC1 to its promoter and maintaining a deacetylated state of histone H3K27. The downregulation of DUSP2 resulted in aberrant activation of the ERK signaling and elevated MMP2 levels, promoting NPC metastasis. Chidamide, an HDAC inhibitor, was shown to suppress NPC metastasis by regulating the DNTTIP1/HDAC1-DUSP2 axis. Interpretation Our findings demonstrate that DNTTIP1 not only regulates NPC metastasis but also independently predicts NPC prognosis. Furthermore, targeting DNTTIP1/HDAC1 by Chidamide may benefit NPC patients with metastasis. Funding This work was supported by the National Natural Science Foundation of China (No. 81872464, 82073243).
Collapse
Affiliation(s)
- Shirong Ding
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China; Department of Radiation Oncology, Sun Yat-sen University Cancer Centre, Guangzhou, China
| | - Ying Gao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Dongming Lv
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yalan Tao
- Department of Radiation Oncology, Sun Yat-sen University Cancer Centre, Guangzhou, China
| | - Songran Liu
- Department of Pathology, Sun Yat-sen University Cancer Centre, Guangzhou, China
| | - Chen Chen
- Department of Radiation Oncology, Sun Yat-sen University Cancer Centre, Guangzhou, China
| | - Zilu Huang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Centre, Guangzhou, China
| | - Shuohan Zheng
- Department of Radiation Oncology, Sun Yat-sen University Cancer Centre, Guangzhou, China
| | - Yujun Hu
- Department of Radiation Oncology, Sun Yat-sen University Cancer Centre, Guangzhou, China
| | - Larry Ka-Yue Chow
- Department of Clinical Oncology, University of Hong Kong, Hong Kong (SAR), China
| | - Yinghong Wei
- Department of Radiation Oncology, Sun Yat-sen University Cancer Centre, Guangzhou, China
| | - Ping Feng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China; Department of Radiation Oncology, Sun Yat-sen University Cancer Centre, Guangzhou, China
| | - Wei Dai
- Department of Clinical Oncology, University of Hong Kong, Hong Kong (SAR), China
| | - Xin Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China; Department of Liver Surgery, Sun Yat-sen University Cancer Centre, Guangzhou, China.
| | - Yunfei Xia
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China; Department of Radiation Oncology, Sun Yat-sen University Cancer Centre, Guangzhou, China.
| |
Collapse
|
20
|
Lv K, Yin T, Yu M, Chen Z, Zhou Y, Li F. Treatment Advances in EBV Related Lymphoproliferative Diseases. Front Oncol 2022; 12:838817. [PMID: 35515118 PMCID: PMC9063483 DOI: 10.3389/fonc.2022.838817] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 03/11/2022] [Indexed: 12/24/2022] Open
Abstract
Epstein Barr virus (EBV) can affect 90% of the human population. It can invade B lymphocytes, T lymphocytes and natural killer cells of the host and remain in the host for life. The long latency and reactivation of EBV can cause malignant transformation, leading to various lymphoproliferative diseases (LPDs), including EBV-related B-cell lymphoproliferative diseases (EBV-B-LPDs) (for example, Burkitt lymphoma (BL), classic Hodgkin's lymphoma (cHL), and posttransplantation and HIV-related lymphoproliferative diseases) and EBV-related T-cell lymphoproliferative diseases (EBV-T/NK-LPDs) (for example, extranodal nasal type natural killer/T-cell lymphoma (ENKTCL), aggressive NK cell leukaemia (ANKL), and peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS). EBV-LPDs are heterogeneous with different clinical features and prognoses. The treatment of EBV-LPDs is usually similar to that of EBV-negative lymphoma with the same histology and can include chemotherapy, radiotherapy, and hematopoietic stem cell transplant (HSCT). However, problems such as serious toxicity and drug resistance worsen the survival prognosis of patients. EBV expresses a variety of viral and lytic proteins that regulate cell cycle and death processes and promote the survival of tumour cells. Based on these characteristics, a series of treatment strategies for EBV in related malignant tumours have been developed, such as monoclonal antibodies, immune checkpoint inhibitors, cytotoxic T lymphocytes (CTLs) and epigenetic therapy. These new individualized therapies can produce highly specific killing effects on tumour cells, and nontumour cells can be protected from toxicity. This paper will focus on the latest progress in the treatment of EBV-LPDs based on pathological mechanisms.
Collapse
Affiliation(s)
- Kebing Lv
- Center of Hematology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Ting Yin
- Center of Hematology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Min Yu
- Center of Hematology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Institute of Hematology, Academy of Clinical Medicine of Jiangxi Province, Nanchang, China.,Clinical Research Center for Hematologic Disease of Jiangxi Province, Nanchang, China.,Institute of Lymphoma and Myeloma, Nanchang University, Nanchang, China
| | - Zhiwei Chen
- Center of Hematology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Institute of Hematology, Academy of Clinical Medicine of Jiangxi Province, Nanchang, China.,Clinical Research Center for Hematologic Disease of Jiangxi Province, Nanchang, China.,Institute of Lymphoma and Myeloma, Nanchang University, Nanchang, China
| | - Yulan Zhou
- Center of Hematology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Institute of Hematology, Academy of Clinical Medicine of Jiangxi Province, Nanchang, China.,Clinical Research Center for Hematologic Disease of Jiangxi Province, Nanchang, China.,Institute of Lymphoma and Myeloma, Nanchang University, Nanchang, China
| | - Fei Li
- Center of Hematology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Institute of Hematology, Academy of Clinical Medicine of Jiangxi Province, Nanchang, China.,Clinical Research Center for Hematologic Disease of Jiangxi Province, Nanchang, China.,Institute of Lymphoma and Myeloma, Nanchang University, Nanchang, China
| |
Collapse
|
21
|
Pongas GN, Ramos JC. HIV-Associated Lymphomas: Progress and New Challenges. J Clin Med 2022; 11:jcm11051447. [PMID: 35268547 PMCID: PMC8911067 DOI: 10.3390/jcm11051447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/02/2022] [Accepted: 03/04/2022] [Indexed: 12/22/2022] Open
Abstract
The association of human immunodeficiency virus (HIV) and aggressive lymphomas was first reported in 1982. Before the development of effective HIV antiviral therapy, the incidence and the mortality of these lymphomas was high, with patients frequently succumbing to the disease. More lately, the combination of cART with chemoimmunotherapy significantly improved the survival outcome of the HIV-lymphomas. In this review, we discuss on describing the incidence of HIV-associated lymphomas, their clinical features, and the latest advances in the management of the various lymphoma subtypes.
Collapse
|
22
|
Yang Y, Yan Y, Chen Z, Hu J, Wang K, Tang N, Li X, Zhou Z. Histone Deacetylase Inhibitors Romidepsin and Vorinostat Promote Hepatitis B Virus Replication by Inducing Cell Cycle Arrest. J Clin Transl Hepatol 2021; 9:160-168. [PMID: 34007797 PMCID: PMC8111102 DOI: 10.14218/jcth.2020.00105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 01/29/2021] [Accepted: 02/24/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND AND AIMS Chronic hepatitis B virus (HBV) infection is a global public health challenge. HBV reactivation usually occurs in cancer patients after receiving cytotoxic chemotherapy or immunosuppressive therapies. Romidepsin (FK228) and vorinostat (SAHA) are histone deacetylase inhibitors (HDACi) approved by the Food and Drug Administration as novel antitumor agents. The aim of this study was to explore the effects and mechanisms of HDACi treatment on HBV replication. METHODS To assess these effects, human hepatoma cell lines were cultured and cell viability after FK228 or SAHA treatment was measured by the CCK-8 cell counting kit-8 assay. Then, HBV DNA and RNA were quantified by real-time PCR and Southern blotting. Furthermore, analysis by western blotting, enzyme-linked immunosorbent assay (ELISA), immunohistochemistry, and flow cytometry was performed. RESULTS FK228/SAHA treatment significantly promoted HBV replication and biosynthesis in both HBV-replicating cells and HBV-transgenic mouse model. Flow cytometry assay indicated that FK228/SAHA enhanced HBV replication by inducing cell cycle arrest through modulating the expression of cell cycle regulatory proteins. In addition, simultaneous inhibition of HDAC1/2 by FK228 promoted HBV replication more effectively than the broad spectrum HDAC inhibitor SAHA. CONCLUSIONS Overall, our results demonstrate that cell cycle blockage plays an important role in FK228/SAHA-enhanced HBV replication, thus providing a potential avenue for rational use of HDACi in patients with chronic hepatitis B.
Collapse
Affiliation(s)
- Yang Yang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yu Yan
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Zhen Chen
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Jie Hu
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Kai Wang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Ni Tang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Xiaosong Li
- Clinical Molecular Medicine Testing Center, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
- Correspondence to: Xiaosong Li, Clinical Molecular Medicine Testing Center, The First Affiliated Hospital, Chongqing Medical University, Chongqing 400010, China. Tel: +86-23-68486780, E-mail: ; Zhi Zhou, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, China. Tel: +86-23-62887067, E-mail:
| | - Zhi Zhou
- Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
- Correspondence to: Xiaosong Li, Clinical Molecular Medicine Testing Center, The First Affiliated Hospital, Chongqing Medical University, Chongqing 400010, China. Tel: +86-23-68486780, E-mail: ; Zhi Zhou, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, China. Tel: +86-23-62887067, E-mail:
| |
Collapse
|
23
|
Kim JH, Kim WS, Park C. Sildenafil prevents HDACi-induced Epstein-Barr virus reactivation through the PKG pathway in NK/T cell lymphoma; potential implications for HDACi-mediated fatal complications. Antiviral Res 2021; 189:105063. [PMID: 33741394 DOI: 10.1016/j.antiviral.2021.105063] [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] [Received: 09/23/2020] [Revised: 03/04/2021] [Accepted: 03/09/2021] [Indexed: 12/12/2022]
Abstract
Romidepsin, a histone deacetylase (HDAC) inhibitor, has been approved for the treatment of relapsed and refractory peripheral T-cell lymphoma. However the use of romidepsin reportedly causes potent EBV (Epstein-Barr virus) reactivation leading to severe adverse events in patients with natural killer (NK)/T-cell lymphoma (NKTL). As inhibition of EBV lytic cycle reactivation may help prevent romidepsin-induced adverse events in NKTL, we herein set out to identify a safe and effective drug for inhibiting EBV reactivation and examine its mechanism of inhibition. EBV reactivation was evaluated by qRT-PCR of BZLF1 and BRLF1 mRNA expression, qPCR of EBV DNA, and immunoblotting of viral EA-D protein. High-throughput screening of FDA-approved drugs was performed to identify safe and effective molecules and test their effect on romidepsin-induced EBV reactivation in the EBV-positive NKTL cell lines, SNK6 and NK92MI. We found that phosphodiesterase 5 (PDE5) inhibitors, including sildenafil (Viagra; Pfizer), appeared to be nontoxic and effective inhibitors of romidepsin-induced EBV reactivation. Clinical relevance was investigated by qPCR of EBV in two primary effusion samples of NKTL patients. We also investigated the molecular consequences downstream of sildenafil-induced PDE5 inhibition in NKTL cells. A negative correlation was established between the cGMP/PKG pathway and EBV reactivation in NKTL cells. On a molecular level, PDE5 inhibition downregulates BZLF1 and BRLF1 through cGMP/PKG signaling-induced ZNF overexpression. Co-treatment with romidepsin and sildenafil (inhibiting HDAC and PDE5, respectively) showed a synergistic inhibitory effect on NKTL cells, highlighting PDE5 as an attractive target for future therapy in NKTL.
Collapse
Affiliation(s)
- Joo Hyun Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, South Korea
| | - Won Seog Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, South Korea; Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, South Korea.
| | - Chaehwa Park
- Research Institute for Future Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, South Korea.
| |
Collapse
|
24
|
Epstein-Barr Virus-Associated Post-transplant Lymphoproliferative Disease. Recent Results Cancer Res 2020. [PMID: 33200367 DOI: 10.1007/978-3-030-57362-1_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Epstein-Barr virus (EBV) is associated with a variety of malignancies including post-transplant lymphoproliferative disease (PTLD). These include B and T cell lymphomas, epithelial, and mesenchymal tumors. The virus is ubiquitous, transmitted in saliva, and not usually associated with the development of malignancy. PTLD is usually associated with EBV when it occurs soon after the transplant. Measurement of viral DNA in blood, especially plasma, may be useful in the diagnosis of PTLD. Treatment approaches include withdrawal of immunosuppression, monoclonal antibodies or antibody conjugates, cytotoxic chemotherapy, and a variety of virus-specific treatments such as adoptive cellular therapy with EBV-specific T cells. Approaches to prevention include selection of immunosuppressive regimens that minimize the risk. In the future, EBV vaccines may be available for potential transplant recipients.
Collapse
|
25
|
Yiu SPT, Dorothea M, Hui KF, Chiang AKS. Lytic Induction Therapy against Epstein-Barr Virus-Associated Malignancies: Past, Present, and Future. Cancers (Basel) 2020; 12:cancers12082142. [PMID: 32748879 PMCID: PMC7465660 DOI: 10.3390/cancers12082142] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/30/2020] [Accepted: 07/30/2020] [Indexed: 12/29/2022] Open
Abstract
Epstein-Barr virus (EBV) lytic induction therapy is an emerging virus-targeted therapeutic approach that exploits the presence of EBV in tumor cells to confer specific killing effects against EBV-associated malignancies. Efforts have been made in the past years to uncover the mechanisms of EBV latent-lytic switch and discover different classes of chemical compounds that can reactivate the EBV lytic cycle. Despite the growing list of compounds showing potential to be used in the lytic induction therapy, only a few are being tested in clinical trials, with varying degrees of success. This review will summarize the current knowledge on EBV lytic reactivation, the major hurdles of translating the lytic induction therapy into clinical settings, and highlight some potential strategies in the future development of this therapy for EBV-related lymphoid and epithelial malignancies.
Collapse
|
26
|
Hau PM, Lung HL, Wu M, Tsang CM, Wong KL, Mak NK, Lo KW. Targeting Epstein-Barr Virus in Nasopharyngeal Carcinoma. Front Oncol 2020; 10:600. [PMID: 32528868 PMCID: PMC7247807 DOI: 10.3389/fonc.2020.00600] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 04/01/2020] [Indexed: 12/11/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) is consistently associated with Epstein-Barr virus (EBV) infection in regions in which it is endemic, including Southern China and Southeast Asia. The high mortality rates of NPC patients with advanced and recurrent disease highlight the urgent need for effective treatments. While recent genomic studies have revealed few druggable targets, the unique interaction between the EBV infection and host cells in NPC strongly implies that targeting EBV may be an efficient approach to cure this virus-associated cancer. Key features of EBV-associated NPC are the persistence of an episomal EBV genome and the requirement for multiple viral latent gene products to enable malignant transformation. Many translational studies have been conducted to exploit these unique features to develop pharmaceutical agents and therapeutic strategies that target EBV latent proteins and induce lytic reactivation in NPC. In particular, inhibitors of the EBV latent protein EBNA1 have been intensively explored, because of this protein's essential roles in maintaining EBV latency and viral genome replication in NPC cells. In addition, recent advances in chemical bioengineering are driving the development of therapeutic agents targeting the critical functional regions of EBNA1. Promising therapeutic effects of the resulting EBNA1-specific inhibitors have been shown in EBV-positive NPC tumors. The efficacy of multiple classes of EBV lytic inducers for NPC cytolytic therapy has also been long investigated. However, the lytic-induction efficiency of these compounds varies among different EBV-positive NPC models in a cell-context-dependent manner. In each tumor, NPC cells can evolve and acquire somatic changes to maintain EBV latency during cancer progression. Unfortunately, the poor understanding of the cellular mechanisms regulating EBV latency-to-lytic switching in NPC cells limits the clinical application of EBV cytolytic treatment. In this review, we discuss the potential approaches for improvement of the above-mentioned EBV-targeting strategies.
Collapse
Affiliation(s)
- Pok Man Hau
- Department of Anatomical & Cellular Pathology and State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Hong Kong, China
| | - Hong Lok Lung
- Department of Biology, Hong Kong Baptist University, Hong Kong, China
| | - Man Wu
- Department of Anatomical & Cellular Pathology and State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Hong Kong, China
| | - Chi Man Tsang
- Department of Anatomical & Cellular Pathology and State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Hong Kong, China
| | - Ka-Leung Wong
- Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Nai Ki Mak
- Department of Biology, Hong Kong Baptist University, Hong Kong, China
| | - Kwok Wai Lo
- Department of Anatomical & Cellular Pathology and State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Hong Kong, China
| |
Collapse
|
27
|
HDAC7 promotes the oncogenicity of nasopharyngeal carcinoma cells by miR-4465-EphA2 signaling axis. Cell Death Dis 2020; 11:322. [PMID: 32376822 PMCID: PMC7203158 DOI: 10.1038/s41419-020-2521-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 04/17/2020] [Accepted: 04/20/2020] [Indexed: 12/29/2022]
Abstract
HDAC7 plays a crucial role in cancers, and is the main drug target of several HDAC inhibitors. However, the role and mechanism of HDAC7 in nasopharyngeal carcinoma (NPC) are still unclear. In this study, we observed that HDAC7 was significantly upregulated in the NPC tissues relative to normal nasopharyngeal mucosa (NNM) tissues, HDAC7 expression levels were positively correlated with NPC progression and negatively correlated with patient prognosis, and HDAC7 knockdown dramatically inhibited the in vitro proliferation, migration, and invasion of NPC cells, and the growth of NPC xenografts in mice, indicating the HDAC7 promotes the oncogenicity of NPC. Mechanistically, HDAC7 promoted the in vitro proliferation, migration, and invasion of NPC cells by upregulating EphA2, in which miR-4465 mediated HDAC7-regulating EphA2, a direct target gene of miR-4465. We further showed that miR-4465 was significantly downregulated in the NPC tissues relative to NNM tissues, and inhibited the in vitro proliferation, migration, and invasion of NPC cells by targeting EphA2 expression. Moreover, we observed that the expressions of HDAC7, miR-4465, and EphA2 in NPC tissues were correlated. The results suggest that HDAC7 promotes the oncogenicity of NPC by downregulating miR-4465 and subsequently upregulating EphA2, highlighting HDAC7 as a potential therapeutic target for NPC.
Collapse
|
28
|
Liu W, Luo B. The impact of EBV on the epigenetics of gastric carcinoma. Future Virol 2020. [DOI: 10.2217/fvl-2019-0148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
EBV is an important human tumor virus and is closely related to the occurrence of a variety of tumors, involving 10% of gastric cancer. In EBV-associated gastric carcinoma (EBVaGC), EBV expresses restrict viral genes including EBV nuclear antigen 1, EBV encoded small RNAs, Bam HI-A rightward transcripts, latent membrane protein 2A and miRNAs. The role of EBV in gastric carcinogenesis has received increasing attention and is considered to be another pathogenic factor in addition to Helicobacter pylori. A typical characteristic of EBVaGC is the extensive methylation of viral and host genome. Combined with other epigenetic mechanisms, EBV infection acts as an epigenetic driver of EBVaGC oncogenesis. In this review we discuss recent findings of EBV effect on host epigenetic alterations in EBVaGC and its role in oncogenic process.
Collapse
Affiliation(s)
- Wen Liu
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao, PR China
| | - Bing Luo
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao, PR China
| |
Collapse
|
29
|
Chen CY, Chen CC, Chuang WY, Leu YL, Ueng SH, Hsueh C, Yeh CT, Wang TH. Hydroxygenkwanin Inhibits Class I HDAC Expression and Synergistically Enhances the Antitumor Activity of Sorafenib in Liver Cancer Cells. Front Oncol 2020; 10:216. [PMID: 32158695 PMCID: PMC7052045 DOI: 10.3389/fonc.2020.00216] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 02/07/2020] [Indexed: 12/13/2022] Open
Abstract
Abnormal histone deacetylase (HDAC) expression is closely related to cancer development and progression. Many HDAC inhibitors have been widely used in cancer treatment; however, severe side effects often limit their clinical application. In this study, we attempted to identify natural compounds with HDAC inhibitory activity and low physiological toxicity and explored their feasibility and mechanisms of action in liver cancer treatment. A yeast screening system was used to identify natural compounds with HDAC inhibitory activity. Further, western blotting was used to verify inhibitory effects on HDAC in human liver cancer cell lines. Cell functional analysis was used to explore the effects and mechanisms and the in vitro results were verified in BALB/c nude mice. We found that hydroxygenkwanin (HGK), an extract from Daphne genkwa, inhibited class I HDAC expression, and thereby induced expression of tumor suppressor p21 and promoted acetylation and activation of p53 and p65. This resulted in the inhibition of growth, migration, and invasion of liver cancer cells and promoted cell apoptosis. Animal models revealed that HGK inhibited tumor growth in a synergistic manner with sorafenib. HGK inhibited class I HDAC expression and had low physiological toxicity. It has great potential as an adjuvant for liver cancer treatment and may be used in combination with anticancer drugs like sorafenib to improve therapeutic efficacy.
Collapse
Affiliation(s)
- Chi-Yuan Chen
- Tissue Bank, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Research Center for Chinese Herbal Medicine, Graduate Institute of Health Industry Technology and Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan
| | - Chin-Chuan Chen
- Tissue Bank, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Graduate Institute of Natural Products, Chang Gung University, Taoyuan, Taiwan
| | - Wen-Yu Chuang
- Department of Anatomic Pathology, Chang Gung Memorial Hospital, Chang Gung University School of Medicine, Taoyuan, Taiwan
| | - Yann-Lii Leu
- Graduate Institute of Natural Products, Chang Gung University, Taoyuan, Taiwan.,Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan.,Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Shir-Hwa Ueng
- Department of Anatomic Pathology, Chang Gung Memorial Hospital, Chang Gung University School of Medicine, Taoyuan, Taiwan
| | - Chuen Hsueh
- Tissue Bank, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Department of Anatomic Pathology, Chang Gung Memorial Hospital, Chang Gung University School of Medicine, Taoyuan, Taiwan
| | - Chau-Ting Yeh
- Department of Hepato-Gastroenterology, Liver Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Tong-Hong Wang
- Tissue Bank, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Research Center for Chinese Herbal Medicine, Graduate Institute of Health Industry Technology and Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan.,Department of Hepato-Gastroenterology, Liver Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| |
Collapse
|
30
|
Yiu SPT, Hui KF, Münz C, Lo KW, Tsao SW, Kao RYT, Yang D, Chiang AKS. Autophagy-Dependent Reactivation of Epstein-Barr Virus Lytic Cycle and Combinatorial Effects of Autophagy-Dependent and Independent Lytic Inducers in Nasopharyngeal Carcinoma. Cancers (Basel) 2019; 11:cancers11121871. [PMID: 31769432 PMCID: PMC6966612 DOI: 10.3390/cancers11121871] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/09/2019] [Accepted: 11/22/2019] [Indexed: 12/14/2022] Open
Abstract
Autophagy, a conserved cellular mechanism, is manipulated by a number of viruses for different purposes. We previously demonstrated that an iron-chelator-like small compound, C7, reactivates Epstein-Barr virus (EBV) lytic cycle by activating the ERK1/2-autophagy axis in epithelial cancers. Here, we aim to identify the specific stage of autophagy required for EBV lytic reactivation, determine the autophagy dependency of EBV lytic inducers including histone deacetylase inhibitor (HDACi) and C7/iron chelators, for EBV lytic reactivation and measure the combinatorial effects of these types of lytic inducers in nasopharyngeal carcinoma (NPC). Inhibition of autophagy initiation by 3-MA and autolysosome formation by chloroquine demonstrated that only autophagy initiation is required for EBV lytic reactivation. Gene knockdown of various autophagic proteins such as beclin-1, ATG5, ATG12, ATG7, LC3B, ATG10, ATG3 and Rab9, revealed the importance of ATG5 in EBV lytic reactivation. 3-MA could only abrogate lytic cycle induction by C7/iron chelators but not by HDACi, providing evidence for autophagy-dependent and independent mechanisms in EBV lytic reactivation. Finally, the combination of C7 and SAHA at their corresponding reactivation kinetics enhanced EBV lytic reactivation. These findings render new insights in the mechanisms of EBV lytic cycle reactivation and stimulate a rational design of combination drug therapy against EBV-associated cancers.
Collapse
Affiliation(s)
- Stephanie Pei Tung Yiu
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong, China; (S.P.T.Y.); (K.F.H.)
| | - Kwai Fung Hui
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong, China; (S.P.T.Y.); (K.F.H.)
| | - Christian Münz
- Viral Immunobiology, Institute of Experimental Immunology, University of Zurich, CH-8006 Zurich, Switzerland;
| | - Kwok-Wai Lo
- Department of Anatomical and Cellular Pathology, State Key Laboratory in Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China;
- Li Ka Shing Institute of Health Science, The Chinese University of Hong Kong, Hong Kong, China
| | - Sai Wah Tsao
- Department of Anatomy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China;
- Center for Nasopharyngeal Carcinoma Research, The University of Hong Kong, Hong Kong, China
| | - Richard Yi Tsun Kao
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China;
| | - Dan Yang
- Department of Chemistry, The University of Hong Kong, Hong Kong, China;
| | - Alan Kwok Shing Chiang
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong, China; (S.P.T.Y.); (K.F.H.)
- Center for Nasopharyngeal Carcinoma Research, The University of Hong Kong, Hong Kong, China
- Correspondence:
| |
Collapse
|
31
|
Gao L, Han H, Wang H, Cao L, Feng WH. IL-10 knockdown with siRNA enhances the efficacy of Doxorubicin chemotherapy in EBV-positive tumors by inducing lytic cycle via PI3K/p38 MAPK/NF-kB pathway. Cancer Lett 2019; 462:12-22. [PMID: 31352079 DOI: 10.1016/j.canlet.2019.07.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 07/02/2019] [Accepted: 07/22/2019] [Indexed: 12/19/2022]
Abstract
High levels of IL-10 expression in Epstein-Barr virus (EBV) associated tumors have been reported and it is likely to be important for maintaining EBV latency and EBV-associated tumors. The switch from the latent form of EBV to the lytic form in tumor cells can lead to tumor cell lysis. Here, we found that knockdown of IL-10 induced EBV lytic replication. Subsequently, we demonstrated that IL-10 knockdown activated BZLF1 promoter through PI3K-p38 MAPK-NF-κB signaling pathway. Interestingly, we verified that VEGF-A was required for IL-10 knockdown to activate PI3K signaling and the accompanying EBV lytic induction. Exogenous recombinant human VEGF-A induced PI3K activation and EBV lytic infection, and inhibition of VEGF-A signaling prevented the PI3K/AKT phosphorylation and EBV reactivation responded to IL-10 knockdown. Most importantly, IL-10 knockdown synergized with chemotherapeutic agent Doxorubicin to kill EBV associated tumor cells in vitro and repress EBV-positive tumor growth in vivo. Our results suggest that inhibition of IL-10 has the potential to serve as a new supplemental strategy for the treatment of EBV-associated tumors.
Collapse
Affiliation(s)
- Li Gao
- State Key Laboratory of Agrobiotechnology, Beijing, 100193, China; Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China; China Academy of Medicine Sciences, Peking Union Medical College, Institute of Medicinal Plant Development, Beijing, 100193, China
| | - Haige Han
- State Key Laboratory of Agrobiotechnology, Beijing, 100193, China; Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Honglei Wang
- State Key Laboratory of Agrobiotechnology, Beijing, 100193, China; Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Li Cao
- China Academy of Medicine Sciences, Peking Union Medical College, Institute of Medicinal Plant Development, Beijing, 100193, China
| | - Wen-Hai Feng
- State Key Laboratory of Agrobiotechnology, Beijing, 100193, China; Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China.
| |
Collapse
|
32
|
Janssens Y, Wynendaele E, Vanden Berghe W, De Spiegeleer B. Peptides as epigenetic modulators: therapeutic implications. Clin Epigenetics 2019; 11:101. [PMID: 31300053 PMCID: PMC6624906 DOI: 10.1186/s13148-019-0700-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 07/03/2019] [Indexed: 12/13/2022] Open
Abstract
Peptides originating from different sources (endogenous, food derived, environmental, and synthetic) are able to influence different aspects of epigenetic regulation. Endogenous short peptides, resulting from proteolytic cleavage of proteins or upon translation of non-annotated out of frame transcripts, can block DNA methylation and hereby regulate gene expression. Peptides entering the body by digestion of food-related proteins can modulate DNA methylation and/or histone acetylation while environmental peptides, synthesized by bacteria, fungi, and marine sponges, mainly inhibit histone deacetylation. In addition, synthetic peptides that reverse or inhibit different epigenetic modifications of both histones and the DNA can be developed as well. Next to these DNA and histone modifications, peptides can also influence the expression of non-coding RNAs such as lncRNAs and the maturation of miRNAs. Seen the advantages over small molecules, the development of peptide therapeutics is an interesting approach to treat diseases with a strong epigenetic basis like cancer and Alzheimer’s disease. To date, only a limited number of drugs with a proven epigenetic mechanism of action have been approved by the FDA of which two (romidepsin and nesiritide) are peptides. A large knowledge gap concerning epigenetic effects of peptides is present, and this class of molecules deserves more attention in the development as epigenetic modulators. In addition, none of the currently approved peptide drugs are under investigation for their potential effects on epigenetics, hampering drug repositioning of these peptides to other indications with an epigenetic etiology.
Collapse
Affiliation(s)
- Yorick Janssens
- Drug Quality and Registration (DruQuaR) group, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium
| | - Evelien Wynendaele
- Drug Quality and Registration (DruQuaR) group, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium
| | - Wim Vanden Berghe
- Protein Science, Proteomics and Epigenetic Signaling (PPES), Department Biomedical Sciences, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium
| | - Bart De Spiegeleer
- Drug Quality and Registration (DruQuaR) group, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium.
| |
Collapse
|
33
|
Loboda AP, Soond SM, Piacentini M, Barlev NA. Lysine-specific post-translational modifications of proteins in the life cycle of viruses. Cell Cycle 2019; 18:1995-2005. [PMID: 31291816 DOI: 10.1080/15384101.2019.1639305] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
The process of protein post-translational modifications (PTM) is one of the critical mechanisms of regulation of many cellular processes, which makes it an attractive target for various viruses. Since viruses cannot replicate on their own, they have developed unique abilities to alter metabolic and signaling cell pathways, including protein PTMs, to ensure faithful replication of their genomes. This review describes several ways of how lysine-specific PTMs are used by various viruses to ensure its successful invasion and replication. Covalent modifications like acetylation, ubiquitination, and methylation form a complex system of reversible and often competing modifications, which adds an additional level of complexity to the system of regulation of the activity of host proteins involved in viral replication and propagation. In furthering these, we also describe the manner in which PTM pathways can also be accosted by various types of viruses to neutralize the host's cellular mechanisms for anti-viral protection and highlight key areas for future therapeutic targeting and design.
Collapse
Affiliation(s)
- Anna P Loboda
- a Laboratory of Intracellular Signaling, Moscow Institute of Physics and Technology , Dolgoprudny, Moscow Region , Russian Federation
| | - Surinder M Soond
- b Laboratory of Molecular Biology and Biochemistry, Institute of Molecular Medicine, Sechenov First Moscow State Medical University , Moscow , Russian Federation
| | - Mauro Piacentini
- c Laboratory of Molecular Medicine, Institute of Cytology of the Russian Academy of Science , St-Petersburg , Russian Federation
| | - Nickolai A Barlev
- a Laboratory of Intracellular Signaling, Moscow Institute of Physics and Technology , Dolgoprudny, Moscow Region , Russian Federation.,c Laboratory of Molecular Medicine, Institute of Cytology of the Russian Academy of Science , St-Petersburg , Russian Federation
| |
Collapse
|
34
|
Lu Y, Stuart JH, Talbot-Cooper C, Agrawal-Singh S, Huntly B, Smid AI, Snowden JS, Dupont L, Smith GL. Histone deacetylase 4 promotes type I interferon signaling, restricts DNA viruses, and is degraded via vaccinia virus protein C6. Proc Natl Acad Sci U S A 2019; 116:11997-12006. [PMID: 31127039 PMCID: PMC6575207 DOI: 10.1073/pnas.1816399116] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Interferons (IFNs) represent an important host defense against viruses. Type I IFNs induce JAK-STAT signaling and expression of IFN-stimulated genes (ISGs), which mediate antiviral activity. Histone deacetylases (HDACs) perform multiple functions in regulating gene expression and some class I HDACs and the class IV HDAC, HDAC11, influence type I IFN signaling. Here, HDAC4, a class II HDAC, is shown to promote type I IFN signaling and coprecipitate with STAT2. Pharmacological inhibition of class II HDAC activity, or knockout of HDAC4 from HEK-293T and HeLa cells, caused a defective response to IFN-α. This defect in HDAC4-/- cells was rescued by reintroduction of HDAC4 or catalytically inactive HDAC4, but not HDAC1 or HDAC5. ChIP analysis showed HDAC4 was recruited to ISG promoters following IFN stimulation and was needed for binding of STAT2 to these promoters. The biological importance of HDAC4 as a virus restriction factor was illustrated by the observations that (i) the replication and spread of vaccinia virus (VACV) and herpes simplex virus type 1 (HSV-1) were enhanced in HDAC4-/- cells and inhibited by overexpression of HDAC4; and (ii) HDAC4 is targeted for proteasomal degradation during VACV infection by VACV protein C6, a multifunctional IFN antagonist that coprecipitates with HDAC4 and is necessary and sufficient for HDAC4 degradation.
Collapse
Affiliation(s)
- Yongxu Lu
- Department of Pathology, University of Cambridge, CB2 1QP Cambridge, United Kingdom
| | - Jennifer H Stuart
- Department of Pathology, University of Cambridge, CB2 1QP Cambridge, United Kingdom
| | - Callum Talbot-Cooper
- Department of Pathology, University of Cambridge, CB2 1QP Cambridge, United Kingdom
| | - Shuchi Agrawal-Singh
- Cambridge Institute for Medical Research, University of Cambridge, CB2 0XY Cambridge, United Kingdom
| | - Brian Huntly
- Cambridge Institute for Medical Research, University of Cambridge, CB2 0XY Cambridge, United Kingdom
| | - Andrei I Smid
- Department of Pathology, University of Cambridge, CB2 1QP Cambridge, United Kingdom
| | - Joseph S Snowden
- Department of Pathology, University of Cambridge, CB2 1QP Cambridge, United Kingdom
| | - Liane Dupont
- Department of Pathology, University of Cambridge, CB2 1QP Cambridge, United Kingdom
| | - Geoffrey L Smith
- Department of Pathology, University of Cambridge, CB2 1QP Cambridge, United Kingdom;
| |
Collapse
|
35
|
Choi SJ, Ryu E, Lee S, Huh S, Shin YS, Kang BW, Kim JG, Cho H, Kang H. Adenosine Induces EBV Lytic Reactivation through ADORA1 in EBV-Associated Gastric Carcinoma. Int J Mol Sci 2019; 20:ijms20061286. [PMID: 30875759 PMCID: PMC6471230 DOI: 10.3390/ijms20061286] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 02/28/2019] [Accepted: 03/03/2019] [Indexed: 02/07/2023] Open
Abstract
Cordyceps species are known to contain numerous bioactive compounds, including cordycepin. Extracts of Cordyceps militaris (CME) are used in diverse medicinal purposes because of their bioactive components. Cordycepin, one of the active components of CME, exhibits anti-proliferative, pro-apoptotic, and anti-inflammatory effects. Cordycepin structurally differs from adenosine in that its ribose lacks an oxygen atom at the 3′ position. We previously reported that cordycepin suppresses Epstein–Barr virus (EBV) gene expression and lytic replication in EBV-associated gastric carcinoma (EBVaGC). However, other studies reported that cordycepin induces EBV gene expression and lytic reactivation. Thus, it was reasonable to clarify the bioactive effects of CME bioactive compounds on the EBV life cycle. We first confirmed that CME preferentially induces EBV gene expression and lytic reactivation; second, we determined that adenosine in CME induces EBV gene expression and lytic reactivation; third, we discovered that the adenosine A1 receptor (ADORA1) is required for adenosine to initiate signaling for upregulating BZLF1, which encodes for a key EBV regulator (Zta) of the EBV lytic cycle; finally, we showed that BZLF1 upregulation by adenosine leads to delayed tumor development in the EBVaGC xenograft mouse model. Taken together, these results suggest that adenosine is an EBV lytic cycle inducer that inhibits EBVaGC development.
Collapse
Affiliation(s)
- Su Jin Choi
- College of Pharmacy and Cancer Research Institute and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Korea.
| | - Eunhyun Ryu
- College of Pharmacy and Cancer Research Institute and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Korea.
| | - Seulki Lee
- College of Pharmacy and Innovative Drug Center, Duksung Women's University, Seoul 01369, Korea.
| | - Sora Huh
- College of Pharmacy and Cancer Research Institute and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Korea.
| | - Yu Su Shin
- Department of Medical Crop Research, National Institute of Horticultural and Herbal Science, Rural Development Administration, Eumseong 27709, Korea.
| | - Byung Woog Kang
- Department of Oncology/Hematology and Cancer Research Institute and School of Medicine, Kyungpook National University Hospital and Kyungpook National University, Daegu 41404, Korea.
| | - Jong Gwang Kim
- Department of Oncology/Hematology and Cancer Research Institute and School of Medicine, Kyungpook National University Hospital and Kyungpook National University, Daegu 41404, Korea.
| | - Hyosun Cho
- College of Pharmacy and Innovative Drug Center, Duksung Women's University, Seoul 01369, Korea.
| | - Hyojeung Kang
- College of Pharmacy and Cancer Research Institute and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Korea.
| |
Collapse
|
36
|
Hui KF, Yiu SPT, Tam KP, Chiang AKS. Viral-Targeted Strategies Against EBV-Associated Lymphoproliferative Diseases. Front Oncol 2019; 9:81. [PMID: 30873380 PMCID: PMC6400835 DOI: 10.3389/fonc.2019.00081] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 01/29/2019] [Indexed: 12/14/2022] Open
Abstract
Epstein-Barr virus (EBV) is strongly associated with a spectrum of EBV-associated lymphoproliferative diseases (EBV-LPDs) ranging from post-transplant lymphoproliferative disorder, B cell lymphomas (e.g., endemic Burkitt lymphoma, Hodgkin lymphoma, and diffuse large B cell lymphoma) to NK or T cell lymphoma (e.g., nasal NK/T-cell lymphoma). The virus expresses a number of latent viral proteins which are able to manipulate cell cycle and cell death processes to promote survival of the tumor cells. Several FDA-approved drugs or novel compounds have been shown to induce killing of some of the EBV-LPDs by inhibiting the function of latent viral proteins or activating the viral lytic cycle from latency. Here, we aim to provide an overview on the mechanisms by which EBV employs to drive the pathogenesis of various EBV-LPDs and to maintain the survival of the tumor cells followed by a discussion on the development of viral-targeted strategies based on the understanding of the patho-mechanisms.
Collapse
Affiliation(s)
- Kwai Fung Hui
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Hong Kong
| | - Stephanie Pei Tung Yiu
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Hong Kong
| | - Kam Pui Tam
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Hong Kong
| | - Alan Kwok Shing Chiang
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Hong Kong.,Center for Nasopharyngeal Carcinoma Research, The University of Hong Kong, Hong Kong, Hong Kong
| |
Collapse
|
37
|
Intracellular Iron Chelation by a Novel Compound, C7, Reactivates Epstein⁻Barr Virus (EBV) Lytic Cycle via the ERK-Autophagy Axis in EBV-Positive Epithelial Cancers. Cancers (Basel) 2018; 10:cancers10120505. [PMID: 30544928 PMCID: PMC6316324 DOI: 10.3390/cancers10120505] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 12/01/2018] [Accepted: 12/06/2018] [Indexed: 12/21/2022] Open
Abstract
Pharmaceutical reactivation of lytic cycle of Epstein–Barr virus (EBV) represents a potential therapeutic strategy against EBV-associated epithelial malignancies, e.g., gastric carcinoma (GC) and nasopharyngeal carcinoma (NPC). A novel lytic-inducing compound, C7, which exhibits structural similarity to Di-2-Pyridyl Ketone 4, 4-Dimethyl-3-Thiosemicarbazone (Dp44mT), a known chelator of intracellular iron, is found to reactivate EBV lytic cycle in GC and NPC. This study aims to investigate the role of intracellular iron chelation by C7 and other iron chelators in lytic reactivation of EBV in GC and NPC. Testing of six structural analogs of C7 revealed only those which have high affinity towards transition metals could induce EBV lytic cycle. Precomplexing C7 and iron chelators to iron prior to treatment of the cells abolished EBV lytic reactivation. Though hypoxia signaling pathway was activated, it was not the only pathway associated with EBV reactivation. Specifically, C7 and iron chelators initiated autophagy by activating extracellular signal-regulated kinase (ERK1/2) to reactivate EBV lytic cycle since autophagy and EBV lytic reactivation were abolished in cells treated with ERK1/2 blockers whilst inhibition of autophagy by 3-Methyladenine (3-MA) and atg5 knockdown significantly abolished EBV lytic reactivation. In summary, we discovered a novel mechanism of reactivation of the EBV lytic cycle through intracellular iron chelation and induction of ERK-autophagy axis in EBV-positive epithelial malignancies, raising the question whether clinically available iron chelators can be incorporated into existing therapeutic regimens to treat these cancers.
Collapse
|
38
|
Ramayanti O, Verkuijlen SAWM, Novianti P, Scheepbouwer C, Misovic B, Koppers-Lalic D, van Weering J, Beckers L, Adham M, Martorelli D, Middeldorp JM, Pegtel DM. Vesicle-bound EBV-BART13-3p miRNA in circulation distinguishes nasopharyngeal from other head and neck cancer and asymptomatic EBV-infections. Int J Cancer 2018; 144:2555-2566. [PMID: 30411781 PMCID: PMC6587801 DOI: 10.1002/ijc.31967] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/04/2018] [Accepted: 10/17/2018] [Indexed: 01/05/2023]
Abstract
Cell‐free microRNA (miRNA) in biofluids released by tumors in either protein or vesicle‐bound form, represent promising minimally‐invasive cancer biomarkers. However, a highly abundant non‐tumor background in human plasma and serum complicates the discovery and detection of tumor‐selective circulating miRNAs. We performed small RNA sequencing on serum and plasma RNA from Nasopharyngeal Carcinoma (NPC) patients. Collectively, Epstein Barr virus‐encoded miRNAs, more so than endogenous miRNAs, signify presence of NPC. However, RNAseq‐based EBV miRNA profiles differ between NPC patients, suggesting inter‐tumor heterogeneity or divergent secretory characteristics. We determined with sensitive qRT‐PCR assays that EBV miRNAs BART7‐3p, BART9‐3p and BART13‐3p are actively secreted by C666.1 NPC cells bound to extracellular vesicles (EVs) and soluble ribonucleoprotein complexes. Importantly, these miRNAs are expressed in all primary NPC tumor biopsies and readily detected in nasopharyngeal brushings from both early and late‐stage NPC patients. Increased levels of BART7‐3p, BART9‐3p and particularly BART13‐3p, distinguish NPC patient sera from healthy controls. Receiver operating characteristic curve analysis using sera from endemic NPC patients, other head and neck cancers and individuals with asymptomatic EBV‐infections reveals a superior diagnostic performance of EBV miRNAs over anti‐EBNA1 IgA serology and EBV‐DNA load (AUC 0.87–0.96 vs 0.86 and 0.66 respectively). The high specificity of circulating EBV‐BART13‐3p (97%) for NPC detection is in agreement with active secretion from NPC tumor cells. We conclude EV‐bound BART13‐3p in circulation is a promising, NPC‐selective, biomarker that should be considered as part of a screening strategy to identify NPC in endemic regions. What's new? Analysis of DNA from human tumor viruses in patient blood is a non‐invasive screening method for individuals at risk for developing cancer. A drawback is over‐diagnosis as these sensitive methods also detect non‐cancer‐related infections. Here the authors show by RNA sequencing and PCR amplification that a microRNA (BART13‐3p) encoded by the Epstein–Barr Virus (EBV) is associated with circulating vesicles in patients with nasopharyngeal carcinoma, thus distinguishing between cancer and non‐cancer‐related EBV infections.
Collapse
Affiliation(s)
- Octavia Ramayanti
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Pathology, Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - Sandra A W M Verkuijlen
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Pathology, Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - Putri Novianti
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Pathology, Cancer Center Amsterdam, Amsterdam, The Netherlands.,Amsterdam UMC, Department of Epidemiology and Biostatistics, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Chantal Scheepbouwer
- Amsterdam UMC, Department of Neurosurgery, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Branislav Misovic
- Amsterdam UMC, Department of Neurosurgery, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Danijela Koppers-Lalic
- Amsterdam UMC, Department of Neurosurgery, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Jan van Weering
- Amsterdam UMC, Clinical Genetics, Center for Neurogenomics and Cognitive Research, Neuroscience Campus Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Lisa Beckers
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Pathology, Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - Marlinda Adham
- Department of Ear, Nose and Throat Surgery, dr. Cipto Mangunkusumo Hospital, University of Indonesia, Jakarta, Indonesia
| | - Debora Martorelli
- National Cancer Institute, Centro di Riferimento Oncologico, Aviano, Italy
| | - Jaap M Middeldorp
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Pathology, Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - Dirk Michiel Pegtel
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Pathology, Cancer Center Amsterdam, Amsterdam, The Netherlands
| |
Collapse
|
39
|
Fukayama M, Kunita A, Kaneda A. Gastritis-Infection-Cancer Sequence of Epstein-Barr Virus-Associated Gastric Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1045:437-457. [PMID: 29896679 DOI: 10.1007/978-981-10-7230-7_20] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Epstein-Barr virus-associated gastric cancer (EBVaGC) is a representative EBV-infected epithelial neoplasm, which is now included as one of the four subtypes of The Cancer Genome Atlas molecular classification of gastric cancer. In this review, we portray a gastritis-infection-cancer sequence of EBVaGC. This virus-associated type of gastric cancer demonstrates clonal growth of EBV-infected epithelial cells within the mucosa of atrophic gastritis. Its core molecular abnormality is the EBV-specific hyper-epigenotype of CpG island promoter methylation, which induces silencing of tumor suppressor genes. This is due to the infection-induced disruption of the balance between DNA methylation and DNA demethylation activities. Abnormalities in the host cell genome, including phosphatidylinositol-4,5-biphosphate 3-kinase catalytic subunit α (PIK3CA), AT-rich interaction domain 1A (ARID1A), and programmed death-ligand 1 (PD-L1), are associated with the development and progression of EBVaGC. Furthermore, posttranscriptional modulation affects the transformation processes of EBV-infected cells, such as epithelial mesenchymal transition and anti-apoptosis, via cellular and viral microRNAs (miRNAs). Once established, cancer cells of EBVaGC remodel their microenvironment, at least partly, via the delivery of exosomes containing cellular and viral miRNAs. After exosomes are incorporated, these molecules change the functions of stromal cells, tuning the microenvironment for EBVaGC. During this series of events, EBV hijacks and uses cellular machineries, such as DNA methylation and the miRNA delivery system. This portrait of gastritis-infection-cancer sequences highlights the survival strategies of EBV in the stomach epithelial cells and may be useful for the integration of therapeutic modalities against EBV-driven gastric cancer.
Collapse
Affiliation(s)
- Masashi Fukayama
- Department of Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
| | - Akiko Kunita
- Department of Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Atsushi Kaneda
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| |
Collapse
|
40
|
Fattahi S, Kosari‐Monfared M, Ghadami E, Golpour M, Khodadadi P, Ghasemiyan M, Akhavan‐Niaki H. Infection‐associated epigenetic alterations in gastric cancer: New insight in cancer therapy. J Cell Physiol 2018; 233:9261-9270. [DOI: 10.1002/jcp.27030] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 06/25/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Sadegh Fattahi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences Babol Iran
- North Research Center, Pasteur Institute Amol Iran
| | | | - Elham Ghadami
- Department of Genetics Faculty of Medicine, Babol University of Medical Sciences Babol Iran
| | - Monireh Golpour
- Molecular and Cell Biology Research Center, Student Research Committee, Faculty of Medicine, Mazandaran University of Medical Science Sari Iran
| | - Parastoo Khodadadi
- Department of Genetics Faculty of Medicine, Babol University of Medical Sciences Babol Iran
| | - Mohammad Ghasemiyan
- Department of Genetics Faculty of Medicine, Babol University of Medical Sciences Babol Iran
| | - Haleh Akhavan‐Niaki
- Department of Genetics Faculty of Medicine, Babol University of Medical Sciences Babol Iran
| |
Collapse
|
41
|
Nishikawa J, Iizasa H, Yoshiyama H, Shimokuri K, Kobayashi Y, Sasaki S, Nakamura M, Yanai H, Sakai K, Suehiro Y, Yamasaki T, Sakaida I. Clinical Importance of Epstein⁻Barr Virus-Associated Gastric Cancer. Cancers (Basel) 2018; 10:cancers10060167. [PMID: 29843478 PMCID: PMC6024931 DOI: 10.3390/cancers10060167] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 05/13/2018] [Accepted: 05/24/2018] [Indexed: 12/17/2022] Open
Abstract
Epstein⁻Barr virus-associated gastric carcinoma (EBVaGC) is the most common malignancy caused by EBV infection. EBVaGC has definite histological characteristics similar to gastric carcinoma with lymphoid stroma. Clinically, EBVaGC has a significantly low frequency of lymph node metastasis compared with EBV-negative gastric cancer, resulting in a better prognosis. The Cancer Genome Atlas of gastric adenocarcinomas proposed a molecular classification divided into four molecular subtypes: (1) EBVaGC; (2) microsatellite instability; (3) chromosomal instability; and (4) genomically stable tumors. EBVaGC harbors a DNA methylation phenotype, PD-L1 and PD-L2 overexpression, and frequent alterations in the PIK3CA gene. We review clinical importance of EBVaGC and discuss novel therapeutic applications for EBVaGC.
Collapse
Affiliation(s)
- Jun Nishikawa
- Department of Laboratory Science, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Hisashi Iizasa
- Department of Microbiology, Shimane University Faculty of Medicine, 89-1 Enyacho, Izumo, Shimane 693-8501, Japan.
| | - Hironori Yoshiyama
- Department of Microbiology, Shimane University Faculty of Medicine, 89-1 Enyacho, Izumo, Shimane 693-8501, Japan.
| | - Kanami Shimokuri
- Department of Laboratory Science, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Yuki Kobayashi
- Department of Laboratory Science, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Sho Sasaki
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Munetaka Nakamura
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Hideo Yanai
- Department of Clinical Research, National Hospital Organization Kanmon Medical Center, 1-1 Sotoura, Chofu, Shimonoseki, Yamaguchi 752-8510, Japan.
| | - Kohei Sakai
- Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Yutaka Suehiro
- Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Takahiro Yamasaki
- Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Isao Sakaida
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
| |
Collapse
|
42
|
Hui KF, Yeung PL, Tam KP, Chiang AKS. Counteracting survival functions of EBNA3C in Epstein-Barr virus (EBV)-driven lymphoproliferative diseases by combination of SAHA and bortezomib. Oncotarget 2018; 9:25101-25114. [PMID: 29861856 PMCID: PMC5982749 DOI: 10.18632/oncotarget.25341] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 04/06/2018] [Indexed: 12/13/2022] Open
Abstract
Combination of suberoylanilide hydroxamic acid (SAHA) and bortezomib (SAHA/bortezomib) was shown to synergistically induce killing of lymphoblastoid cell lines (LCL) and Burkitt lymphoma (BL) of type III or Wp-restricted latency, both of which express EBNA3A, -3B and -3C proteins. We hypothesize that SAHA/bortezomib can counteract the survival functions conferred by the EBNA3 proteins. We tested the effect of SAHA/bortezomib on the survival of BL cell lines containing EBNA3A, -3B or -3C knockout EBV with or without the respective revertant EBNA3 genes. Isobologram analysis showed that SAHA/bortezomib induced significantly greater synergistic killing of EBNA3C-revertant cells when compared with EBNA3C-knockout cells. Such differential response was not observed in either EBNA3A or -3B revertant versus their knockout pairs. Interestingly, EBNA3C-knockout cells showed significant G2/M arrest whilst EBNA3C-revertant cells and LCLs escaped G2/M arrest induced by SAHA/bortezomib and became more susceptible to the induction of apoptosis. In parallel, SAHA/bortezomib induced stronger expression of p21WAF1 but weaker expression of p-cdc25c, an M-phase inducer phosphatase, in EBNA3C-expressing cells when compared with EBNA3C-knockout cells. SAHA/bortezomib also induced greater growth suppression of EBNA3C-expressing xenografts (EBNA3C-revertant and LCL) than that of EBNA3C-knockout xenografts in SCID mice. In conclusion, our data showed that SAHA/bortezomib could synergistically induce killing of BL and LCL through counteracting the survival functions of EBNA3C, providing a strong basis for clinical testing of this drug combination in patients with EBV-associated lymphoproliferative diseases.
Collapse
Affiliation(s)
- Kwai Fung Hui
- Department of Pediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong SAR, China
| | - Po Ling Yeung
- Department of Pediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong SAR, China
| | - Kam Pui Tam
- Department of Pediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong SAR, China
| | - Alan Kwok Shing Chiang
- Department of Pediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong SAR, China
| |
Collapse
|
43
|
How I treat T-cell chronic active Epstein-Barr virus disease. Blood 2018; 131:2899-2905. [PMID: 29712633 DOI: 10.1182/blood-2018-03-785931] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 04/23/2018] [Indexed: 12/16/2022] Open
Abstract
T-cell chronic active Epstein-Barr virus (CAEBV) is a rare disease in which EBV is present predominantly in T cells that infiltrate the tissues; patients have high levels of EBV in the blood. If untreated, patients often develop liver failure, hemophagocytic lymphohistiocytosis, coronary artery aneurysms, EBV infiltrating T cells impairing organ function, or T-cell lymphomas refractory to treatment. At present, hematopoietic stem-cell transplantation is the only curative therapy, and it is critical to make a proper diagnosis and initiate transplantation before the disease progresses to an irreversible stage. Specific medications such as high-dose systemic corticosteroids or ganciclovir combined with either histone deacetylase inhibitors or bortezomib may temporarily reduce systemic toxicity associated with T-cell CAEBV and allow the patient time to receive a transplant. Relapses of the disease after transplantation have also occurred, and the use of donor-derived virus-specific T cells may help to treat these relapses.
Collapse
|
44
|
Ramayanti O, Brinkkemper M, Verkuijlen SAWM, Ritmaleni L, Go ML, Middeldorp JM. Curcuminoids as EBV Lytic Activators for Adjuvant Treatment in EBV-Positive Carcinomas. Cancers (Basel) 2018; 10:cancers10040089. [PMID: 29565326 PMCID: PMC5923344 DOI: 10.3390/cancers10040089] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 03/19/2018] [Accepted: 03/21/2018] [Indexed: 12/24/2022] Open
Abstract
Epstein-Barr virus (EBV) persists in nasopharyngeal (NPC) and gastric carcinomas (EBVaGC) in a tightly latent form. Cytolytic virus activation (CLVA) therapy employs gemcitabine and valproic acid (GCb+VPA) to reactivate latent EBV into the lytic phase and antiviral valganciclovir to enhance cell death and prevent virus production. CLVA treatment has proven safe in phase-I/II trials with promising clinical responses in patients with recurrent NPC. However, a major challenge is to maximize EBV lytic reactivation by CLVA. Curcumin, a dietary spice used in Asian countries, is known for its antitumor property and therapeutic potential. Novel curcuminoids that were developed to increase efficacy and bioavailability may serve as oral CLVA adjuvants. We investigated the potential of curcumin and its analogs (curcuminoids) to trigger the EBV lytic cycle in EBVaGC and NPC cells. EBV-reactivating effects were measured by immunoblot and immunofluorescence using monoclonal antibodies specific for EBV lytic proteins. Two of the hit compounds (41, EF24) with high lytic inducing activity were further studied for their synergistic or antagonistic effects when combined with GCb+VPA and analyzed by cytotoxicity and mRNA profiling assays to measure the EBV reactivation. Curcuminoid as a single agent significantly induced EBV reactivation in recombinant GC and NPC lines. The drug effects were dose- and time-dependent. Micromolar concentration of curcuminoid EF24 enhanced the CLVA effect in all cell systems except SNU719, a naturally infected EBVaGC cell that carries a more tightly latent viral genome. These findings indicated that EF24 has potential as EBV lytic activator and may serve as an adjuvant in CLVA treatment.
Collapse
Affiliation(s)
- Octavia Ramayanti
- Department of Pathology, VU University Medical Center, 1081HV Amsterdam, The Netherlands.
| | - Mitch Brinkkemper
- Department of Pathology, VU University Medical Center, 1081HV Amsterdam, The Netherlands.
| | | | - Leni Ritmaleni
- Laboratory of Medicinal Chemistry, Gadjah Mada University, Yogyakarta 55281, Indonesia.
| | - Mei Lin Go
- Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore.
| | - Jaap M Middeldorp
- Department of Pathology, VU University Medical Center, 1081HV Amsterdam, The Netherlands.
| |
Collapse
|
45
|
Wang M, Wu W, Zhang Y, Yao G, Gu B. Rapamycin enhances lytic replication of Epstein-Barr virus in gastric carcinoma cells by increasing the transcriptional activities of immediate-early lytic promoters. Virus Res 2018; 244:173-180. [PMID: 29169830 DOI: 10.1016/j.virusres.2017.11.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Revised: 11/18/2017] [Accepted: 11/18/2017] [Indexed: 12/12/2022]
Abstract
Epstein-Barr virus (EBV), a human herpesvirus, is linked to both epithelial and lymphoid malignancies. Induction of EBV reactivation is a potential therapeutic strategy for EBV-associated tumors. In this study, we assessed the effects of rapamycin on EBV reactivation in gastric carcinoma cells. We found that rapamycin upregulated expression of EBV lytic proteins and increased the viral proliferation triggered by the EBV lytic inducer sodium butyrate. Reverse transcription-qPCR, luciferase activity assays, chromatin immunoprecipitation and western blotting were employed to explore the mechanism by which rapamycin promotes EBV reactivation. Our results showed that rapamycin treatment resulted in increased mRNA levels of EBV immediate-early genes. Rapamycin also enhanced the transcriptional activities of the EBV immediate-early lytic promoters Zp and Rp by strengthening Sp1 binding. Repression of the cellular ataxia telangiectasia-mutated/p53 pathway by siRNA-mediated knockdown of the ataxia telangiectasia-mutated gene significantly abrogated virus reactivation by rapamycin/sodium butyrate treatment, indicating that the ataxia telangiectasia-mutated/p53 pathway is involved in rapamycin-promoted EBV reactivation. Taken together, these findings demonstrate that rapamycin might have the potential to enhance the effectiveness of oncolytic viral therapies developed for EBV-associated malignancies.
Collapse
MESH Headings
- Ataxia Telangiectasia Mutated Proteins/antagonists & inhibitors
- Ataxia Telangiectasia Mutated Proteins/genetics
- Ataxia Telangiectasia Mutated Proteins/metabolism
- Butyric Acid/pharmacology
- Cell Line, Tumor
- Cell Survival/drug effects
- DNA, Viral/genetics
- DNA, Viral/metabolism
- Gastric Mucosa/drug effects
- Gastric Mucosa/metabolism
- Gastric Mucosa/virology
- Gene Expression Regulation
- Genes, Reporter
- Herpesvirus 4, Human/drug effects
- Herpesvirus 4, Human/genetics
- Herpesvirus 4, Human/growth & development
- Herpesvirus 4, Human/metabolism
- Humans
- Immediate-Early Proteins/agonists
- Immediate-Early Proteins/genetics
- Immediate-Early Proteins/metabolism
- Luciferases/genetics
- Luciferases/metabolism
- Oncolytic Virotherapy/methods
- Promoter Regions, Genetic/drug effects
- Protein Binding
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- Sirolimus/pharmacology
- Sp1 Transcription Factor/genetics
- Sp1 Transcription Factor/metabolism
- Transcription, Genetic
- Tumor Suppressor Protein p53/antagonists & inhibitors
- Tumor Suppressor Protein p53/genetics
- Tumor Suppressor Protein p53/metabolism
- Virus Activation/drug effects
- Virus Replication/drug effects
Collapse
Affiliation(s)
- Man Wang
- Institute for Translational Medicine, Medical College of Qingdao University, Qingdao, 266021, China.
| | - Wei Wu
- Institute for Translational Medicine, Medical College of Qingdao University, Qingdao, 266021, China
| | - Yinfeng Zhang
- Institute for Translational Medicine, Medical College of Qingdao University, Qingdao, 266021, China
| | - Guoliang Yao
- Department of General Surgery, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, 471003, China
| | - Bianli Gu
- Henan Key Laboratory of Cancer Epigenetics, Cancer Hospital, The First Affiliated Hospital, College of Clinical Medicine, Medical College of Henan University of Science and Technology, Luoyang, 471003, China
| |
Collapse
|
46
|
Yuen KS, Wang ZM, Wong NHM, Zhang ZQ, Cheng TF, Lui WY, Chan CP, Jin DY. Suppression of Epstein-Barr virus DNA load in latently infected nasopharyngeal carcinoma cells by CRISPR/Cas9. Virus Res 2018; 244:296-303. [PMID: 28456574 DOI: 10.1016/j.virusres.2017.04.019] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 04/26/2017] [Accepted: 04/26/2017] [Indexed: 12/27/2022]
Abstract
Epstein-Barr virus (EBV) infects more than 90% of the world's adult population. Once established, latent infection of nasopharyngeal epithelial cells with EBV is difficult to eradicate and might lead to the development of nasopharyngeal carcinoma (NPC) in a small subset of individuals. In this study we explored the anti-EBV potential of CRISPR/Cas9 targeting of EBV genome in infected NPC cells. We designed gRNAs to target different regions of the EBV genome and transfected them into C666-1 cells. The levels of EBV DNA in transfected cells were decreased by about 50%. The suppressive effect on EBV DNA load lasted for weeks but could not be further enhanced by re-transfection of gRNA. Suppression of EBV by CRISPR/Cas9 did not affect survival of C666-1 cells but sensitized them to chemotherapeutic killing by cisplatin and 5-fluorouracil. Our work provides the proof-of-principle for suppressing EBV DNA load with CRISPR/Cas9 and a potential new strategy to sensitize EBV-infected NPC cells to chemotherapy.
Collapse
MESH Headings
- Antineoplastic Agents/pharmacology
- Bacterial Proteins/genetics
- Bacterial Proteins/metabolism
- CRISPR-Associated Protein 9
- CRISPR-Cas Systems
- Cell Line, Tumor
- Cell Survival/drug effects
- Cisplatin/pharmacology
- Clustered Regularly Interspaced Short Palindromic Repeats
- DNA, Viral/genetics
- DNA, Viral/metabolism
- Endonucleases/genetics
- Endonucleases/metabolism
- Epithelial Cells/drug effects
- Epithelial Cells/pathology
- Epithelial Cells/virology
- Fluorouracil/pharmacology
- Gene Editing/methods
- Genome, Viral
- Herpesvirus 4, Human/drug effects
- Herpesvirus 4, Human/genetics
- Herpesvirus 4, Human/growth & development
- Herpesvirus 4, Human/metabolism
- Humans
- Nasopharynx/drug effects
- Nasopharynx/pathology
- Nasopharynx/virology
- Plasmids/chemistry
- Plasmids/metabolism
- RNA, Guide, CRISPR-Cas Systems/genetics
- RNA, Guide, CRISPR-Cas Systems/metabolism
- Viral Load/drug effects
- Virus Latency/genetics
- Virus Replication
Collapse
Affiliation(s)
- Kit-San Yuen
- School of Biomedical Sciences, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong
| | - Zhong-Min Wang
- School of Biomedical Sciences, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong
| | - Nok-Hei Mickey Wong
- School of Biomedical Sciences, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong
| | - Zhi-Qian Zhang
- School of Biomedical Sciences, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong
| | - Tsz-Fung Cheng
- School of Biomedical Sciences, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong
| | - Wai-Yin Lui
- School of Biomedical Sciences, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong
| | - Chi-Ping Chan
- School of Biomedical Sciences, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong
| | - Dong-Yan Jin
- School of Biomedical Sciences, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong.
| |
Collapse
|
47
|
Abstract
Owing to the rarity of peripheral T-cell lymphoma (PTCL) and the heterogeneity of subtypes, there are no compelling data to guide the therapeutic approaches for such patients. Over the years, there have been remarkable advances in molecular subtyping and treatment of PTCL, although there are still many areas to be explored. In this review, we summarize recent updates on the evolution of understanding and treatment for PTCL.
Collapse
Affiliation(s)
- Jun Ho Yi
- Division of Hematology-Oncology, Department of Medicine, Chung-Ang University , Seoul, Korea, South
| | - Seok Jin Kim
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine , Seoul, Korea, South
| | - Won Seog Kim
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine , Seoul, Korea, South
| |
Collapse
|
48
|
Therapeutic Strategies against Epstein-Barr Virus-Associated Cancers Using Proteasome Inhibitors. Viruses 2017; 9:v9110352. [PMID: 29160853 PMCID: PMC5707559 DOI: 10.3390/v9110352] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 11/17/2017] [Accepted: 11/20/2017] [Indexed: 12/15/2022] Open
Abstract
Epstein-Barr virus (EBV) is closely associated with several lymphomas (endemic Burkitt lymphoma, Hodgkin lymphoma and nasal NK/T-cell lymphoma) and epithelial cancers (nasopharyngeal carcinoma and gastric carcinoma). To maintain its persistence in the host cells, the virus manipulates the ubiquitin-proteasome system to regulate viral lytic reactivation, modify cell cycle checkpoints, prevent apoptosis and evade immune surveillance. In this review, we aim to provide an overview of the mechanisms by which the virus manipulates the ubiquitin-proteasome system in EBV-associated lymphoid and epithelial malignancies, to evaluate the efficacy of proteasome inhibitors on the treatment of these cancers and discuss potential novel viral-targeted treatment strategies against the EBV-associated cancers.
Collapse
|
49
|
Wu CC, Fang CY, Cheng YJ, Hsu HY, Chou SP, Huang SY, Tsai CH, Chen JY. Inhibition of Epstein-Barr virus reactivation by the flavonoid apigenin. J Biomed Sci 2017; 24:2. [PMID: 28056971 PMCID: PMC5217310 DOI: 10.1186/s12929-016-0313-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 12/18/2016] [Indexed: 12/03/2022] Open
Abstract
Background Lytic reactivation of EBV has been reported to play an important role in human diseases, including NPC carcinogenesis. Inhibition of EBV reactivation is considered to be of great benefit in the treatment of virus-associated diseases. For this purpose, we screened for inhibitory compounds and found that apigenin, a flavonoid, seemed to have the ability to inhibit EBV reactivation. Methods We performed western blotting, immunofluorescence and luciferase analyses to determine whether apigenin has anti-EBV activity. Results Apigenin inhibited expression of the EBV lytic proteins, Zta, Rta, EAD and DNase in epithelial and B cells. It also reduced the number of EBV-reactivating cells detectable by immunofluorescence analysis. In addition, apigenin has been found to reduce dramatically the production of EBV virions. Luciferase reporter analysis was performed to determine the mechanism by which apigenin inhibits EBV reactivation: apigenin suppressed the activity of the immediate-early (IE) gene Zta and Rta promoters, suggesting it can block initiation of the EBV lytic cycle. Conclusion Taken together, apigenin inhibits EBV reactivation by suppressing the promoter activities of two viral IE genes, suggesting apigenin is a potential dietary compound for prevention of EBV reactivation. Electronic supplementary material The online version of this article (doi:10.1186/s12929-016-0313-9) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Chung-Chun Wu
- National Institute of Cancer Research, National Health Research Institutes, No.35, Keyan Road, Zhunan Miaoli, Miaoli County, Taiwan.
| | - Chih-Yeu Fang
- National Institute of Cancer Research, National Health Research Institutes, No.35, Keyan Road, Zhunan Miaoli, Miaoli County, Taiwan.,Department of Pathology, Wan Fang Hospital, Taipei Medical University, Taipei, 116, Taiwan
| | - Yu-Jhen Cheng
- National Institute of Cancer Research, National Health Research Institutes, No.35, Keyan Road, Zhunan Miaoli, Miaoli County, Taiwan
| | - Hui-Yu Hsu
- National Institute of Cancer Research, National Health Research Institutes, No.35, Keyan Road, Zhunan Miaoli, Miaoli County, Taiwan
| | - Sheng-Ping Chou
- National Institute of Cancer Research, National Health Research Institutes, No.35, Keyan Road, Zhunan Miaoli, Miaoli County, Taiwan
| | - Sheng-Yen Huang
- National Institute of Cancer Research, National Health Research Institutes, No.35, Keyan Road, Zhunan Miaoli, Miaoli County, Taiwan
| | - Ching-Hwa Tsai
- Department of Microbiology, College of Medicine National Health Research Institutes, National Taiwan University, No.35, Keyan Road, Zhunan Town, Miaoli County, Taipei, Taiwan
| | - Jen-Yang Chen
- National Institute of Cancer Research, National Health Research Institutes, No.35, Keyan Road, Zhunan Miaoli, Miaoli County, Taiwan. .,Department of Microbiology, College of Medicine National Health Research Institutes, National Taiwan University, No.35, Keyan Road, Zhunan Town, Miaoli County, Taipei, Taiwan.
| |
Collapse
|
50
|
Induction of MAPK- and ROS-dependent autophagy and apoptosis in gastric carcinoma by combination of romidepsin and bortezomib. Oncotarget 2016; 7:4454-67. [PMID: 26683357 PMCID: PMC4826218 DOI: 10.18632/oncotarget.6601] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 11/28/2015] [Indexed: 12/25/2022] Open
Abstract
Proteasome inhibitors and histone deacetylase (HDAC) inhibitors can synergistically induce apoptotic cell death in certain cancer cell types but their combinatorial effect on the induction of autophagy remains unknown. Here, we investigated the combinatorial effects of a proteasome inhibitor, bortezomib, and an HDAC inhibitor, romidepsin, on the induction of apoptotic and autophagic cell death in gastric carcinoma (GC) cells. Isobologram analysis showed that low nanomolar concentrations of bortezomib/romidepsin could synergistically induce killing of GC cells. The synergistic killing was due to the summative effect of caspase-dependent intrinsic apoptosis and caspase-independent autophagy. The autophagic cell death was dependent on the activation of MAPK family members (ERK1/2 and JNK), and generation of reactive oxygen species (ROS), but was independent of Epstein-Barr virus infection. In vivo, bortezomib/romidepsin also significantly induced apoptosis and autophagy in GC xenografts in nude mice. This is the first report demonstrating the potent effect of combination of HDAC and proteasome inhibitors on the induction of MAPK- and ROS-dependent autophagy in addition to caspase-dependent apoptosis in a cancer type.
Collapse
|