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Tepale-Segura A, Gajón JA, Muñoz-Cruz S, Castro-Escamilla O, Bonifaz LC. The cholera toxin B subunit induces trained immunity in dendritic cells and promotes CD8 T cell antitumor immunity. Front Immunol 2024; 15:1362289. [PMID: 38812523 PMCID: PMC11133619 DOI: 10.3389/fimmu.2024.1362289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 04/30/2024] [Indexed: 05/31/2024] Open
Abstract
Introduction Innate immune training is a metabolic, functional, and epigenetic long-term reprogramming of innate cells triggered by different stimuli. This imprinting also reaches hematopoietic precursors in the bone marrow to sustain a memory-like phenotype. Dendritic cells (DCs) can exhibit memory-like responses, enhanced upon subsequent exposure to a pathogen; however, whether this imprinting is lineage and stimulus-restricted is still being determined. Nevertheless, the functional consequences of DCs training on the adaptive and protective immune response against non-infectious diseases remain unresolved. Methods We evaluated the effect of the nontoxic cholera B subunit (CTB), LPS and LTA in the induction of trained immunity in murine DCs revealed by TNFa and LDH expression, through confocal microscopy. Additionally, we obtained bone marrow DCs (BMDCs) from mice treated with CTB, LPS, and LTA and evaluated training features in DCs and their antigen-presenting cell capability using multiparametric cytometry. Finally, we design an experimental melanoma mouse model to demonstrate protection induced by CTB-trained DCs in vivo. Results CTB-trained DCs exhibit increased expression of TNFa, and metabolic reprogramming indicated by LDH expression. Moreover, CTB training has an imprint on DC precursors, increasing the number and antigen-presenting function in BMDCs. We found that training by CTB stimulates the recruitment of DC precursors and DCs infiltration at the skin and lymph nodes. Interestingly, training-induced by CTB promotes a highly co-stimulatory phenotype in tumor-infiltrating DCs (CD86+) and a heightened functionality of exhausted CD8 T cells (Ki67+, GZMB+), which were associated with a protective response against melanoma challenge in vivo. Conclusion Our work indicates that CTB can induce innate immune training on DCs, which turns into an efficient adaptive immune response in the melanoma model and might be a potential immunotherapeutic approach for tumor growth control.
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Affiliation(s)
- Araceli Tepale-Segura
- Unidad de Investigación Médica en Inmunoquímica, Unidad Médica de Alta Especialidad (UMAE) Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Departamento de Inmunología, Mexico City, Mexico
| | - Julián A. Gajón
- Unidad de Investigación Médica en Inmunoquímica, Unidad Médica de Alta Especialidad (UMAE) Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
- Posgrado en Ciencias Bioquímicas, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Samira Muñoz-Cruz
- Unidad de Investigación Médica en Inmunoquímica, Unidad Médica de Alta Especialidad (UMAE) Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Octavio Castro-Escamilla
- División de Investigación Clínica, Coordinación de Investigación en Salud, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Laura C. Bonifaz
- Unidad de Investigación Médica en Inmunoquímica, Unidad Médica de Alta Especialidad (UMAE) Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
- Coordinación de Investigación en Salud, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
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2
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Li Y, Zhao B, Peng J, Tang H, Wang S, Peng S, Ye F, Wang J, Ouyang K, Li J, Cai M, Chen Y. Inhibition of NF-κB signaling unveils novel strategies to overcome drug resistance in cancers. Drug Resist Updat 2024; 73:101042. [PMID: 38219532 DOI: 10.1016/j.drup.2023.101042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/16/2024]
Abstract
Drug resistance in cancer remains a major challenge in oncology, impeding the effectiveness of various treatment modalities. The nuclear factor-kappa B (NF-κB) signaling pathway has emerged as a critical player in the development of drug resistance in cancer cells. This comprehensive review explores the intricate relationship between NF-κB and drug resistance in cancer. We delve into the molecular mechanisms through which NF-κB activation contributes to resistance against chemotherapeutic agents, targeted therapies, and immunotherapies. Additionally, we discuss potential strategies to overcome this resistance by targeting NF-κB signaling, such as small molecule inhibitors and combination therapies. Understanding the multifaceted interactions between NF-κB and drug resistance is crucial for the development of more effective cancer treatment strategies. By dissecting the complex signaling network of NF-κB, we hope to shed light on novel therapeutic approaches that can enhance treatment outcomes, ultimately improving the prognosis for cancer patients. This review aims to provide a comprehensive overview of the current state of knowledge on NF-κB and its role in drug resistance, offering insights that may guide future research and therapeutic interventions in the fight against cancer.
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Affiliation(s)
- Yuanfang Li
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer,Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Baiwei Zhao
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer,Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Juzheng Peng
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China
| | - Hailin Tang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer,Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Sicheng Wang
- School of Medicine, Sun Yat-sen University, China
| | - Sicheng Peng
- School of Medicine, Sun Yat-sen University, China
| | - Feng Ye
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer,Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Junye Wang
- School of Medicine, Sun Yat-sen University, China
| | - Kai Ouyang
- The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Jianjun Li
- The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China.
| | - Manbo Cai
- The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China.
| | - Yongming Chen
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer,Sun Yat-sen University Cancer Center, Guangzhou 510060, China.
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3
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Garcia-Fabiani MB, Haase S, Banerjee K, McClellan B, Zhu Z, Mujeeb A, Li Y, Yu J, Kadiyala P, Taher A, Núñez FJ, Alghamri MS, Comba A, Mendez FM, Nicola Candia AJ, Salazar B, Koschmann C, Nunez FM, Edwards M, Qin T, Sartor MA, Lowenstein PR, Castro MG. H3.3-G34R Mutation-Mediated Epigenetic Reprogramming Leads to Enhanced Efficacy of Immune Stimulatory Gene Therapy in Pediatric High-Grade Gliomas. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.13.544658. [PMID: 37398299 PMCID: PMC10312611 DOI: 10.1101/2023.06.13.544658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Pediatric high-grade gliomas (pHGGs) are diffuse and highly aggressive CNS tumors which remain incurable, with a 5-year overall survival of less than 20%. Within glioma, mutations in the genes encoding the histones H3.1 and H3.3 have been discovered to be age-restricted and specific of pHGGs. This work focuses on the study of pHGGs harboring the H3.3-G34R mutation. H3.3-G34R tumors represent the 9-15% of pHGGs, are restricted to the cerebral hemispheres, and are found predominantly in the adolescent population (median 15.0 years). We have utilized a genetically engineered immunocompetent mouse model for this subtype of pHGG generated via the Sleeping Beauty-transposon system. The analysis of H3.3-G34R genetically engineered brain tumors by RNA-Sequencing and ChIP-Sequencing revealed alterations in the molecular landscape associated to H3.3-G34R expression. In particular, the expression of H3.3-G34R modifies the histone marks deposited at the regulatory elements of genes belonging to the JAK/STAT pathway, leading to an increased activation of this pathway. This histone G34R-mediated epigenetic modifications lead to changes in the tumor immune microenvironment of these tumors, towards an immune-permissive phenotype, making these gliomas susceptible to TK/Flt3L immune-stimulatory gene therapy. The application of this therapeutic approach increased median survival of H3.3-G34R tumor bearing animals, while stimulating the development of anti-tumor immune response and immunological memory. Our data suggests that the proposed immune-mediated gene therapy has potential for clinical translation for the treatment of patients harboring H3.3-G34R high grade gliomas.
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Affiliation(s)
- Maria B. Garcia-Fabiani
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Current address: Leloir Institute Foundation, Buenos Aires, Argentina
| | - Santiago Haase
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Kaushik Banerjee
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Brandon McClellan
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Ziwen Zhu
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Anzar Mujeeb
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Yingxiang Li
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Jin Yu
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Current address: Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Padma Kadiyala
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Ayman Taher
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Felipe J. Núñez
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Mahmoud S. Alghamri
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Andrea Comba
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Flor M. Mendez
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Alejandro J. Nicola Candia
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Brittany Salazar
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Cancer Biology Graduate Program, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Carl Koschmann
- Department of Pediatrics, Chad Carr Pediatric Brain Tumor Center, University of Michigan Medical School, MI 48109, USA
| | - Fernando M. Nunez
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Marta Edwards
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Tingting Qin
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Maureen A. Sartor
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Pedro R. Lowenstein
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Bioengineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Maria G. Castro
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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4
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Wu D, Tian S, Zhu W. Modulating multidrug resistance to drug-based antitumor therapies through NF-κB signaling pathway: mechanisms and perspectives. Expert Opin Ther Targets 2023; 27:503-515. [PMID: 37314372 DOI: 10.1080/14728222.2023.2225767] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 06/12/2023] [Indexed: 06/15/2023]
Abstract
INTRODUCTION Despite the advances made in cancer treatment in the past decades, therapeutic efficacy is still quite challenging, partially due to the emergence of multidrug resistance (MDR). It is crucial to decipher the underlying mechanisms of resistance in order to develop new therapeutic strategies for cancer patients. Previous studies have shown that activation of nuclear factor-κB (NF-κB) plays key roles in various cellular processes including proliferation, anti-apoptosis, metastasis, invasion, and chemoresistance. AREAS COVERED In this review, we conduct an integrated analysis of the evidence suggesting the vital roles of the NF-κB signaling pathway in MDR during chemotherapy, immunotherapy, endocrine, and targeted therapy. A literature search was performed on NF-κB and drug resistance in PubMed up to February 2023. EXPERT OPINION This review summarizes that the NF-κB signaling pathway exhibits a crucial role in enhancing drug resistance in chemotherapy, immunotherapy, endocrine, and targeted therapy. The application of combination therapy with existing antineoplastic drugs and a safe NF-κB inhibitor could become a promising strategy in cancer treatment. A better understanding of the pathway and mechanisms of drug resistance may help exploit safer and more effective NF-κB-targeting agents for clinical use in the future.
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Affiliation(s)
- Dapeng Wu
- Department of Oncology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
| | - Sai Tian
- Department of Pediatric Clinic, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
| | - Wenjing Zhu
- Clinical Research Center, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
- Department of Respiratory and Critical Care Medicine, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
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5
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Papavassiliou KA, Papavassiliou AG. Transcription factors in glioblastoma - Molecular pathogenesis and clinical implications. Biochim Biophys Acta Rev Cancer 2021; 1877:188667. [PMID: 34894431 DOI: 10.1016/j.bbcan.2021.188667] [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: 11/05/2021] [Revised: 11/25/2021] [Accepted: 12/01/2021] [Indexed: 12/15/2022]
Abstract
Glioblastoma, also known as glioblastoma multiforme (GBM), is one of the most lethal human cancers, however, the molecular mechanisms driving GBM remain largely elusive. Recent studies have revealed that transcription factors are significantly involved in GBM biology. Transcription factors (TFs), which are proteins that bind DNA to regulate gene expression, have critical roles at focal points in signaling pathways, orchestrating many cellular processes, such as cell growth and proliferation, differentiation, apoptosis, immune responses, and metabolism. Dysregulated or mutated TFs are common in GBM, resulting in aberrant gene expression that promotes tumor initiation, progression, and resistance to conventional therapies. In the present Review, we focus on TFs that are implicated in GBM pathogenesis, highlighting their oncogenic or tumor suppressive functions and describing the molecular mechanisms underlying their effect on GBM cells. We also discuss their use as biomarkers for GBM prognosis and therapeutic response, as well as their targeting with drugs for GBM treatment. Deciphering the role of TFs in the biology of GBM will provide new insights into the pathological mechanisms and reveal novel biomarkers and therapeutic targets.
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Affiliation(s)
- Kostas A Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens 11527, Athens, Greece
| | - Athanasios G Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens 11527, Athens, Greece.
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Alghamri MS, McClellan BL, Hartlage MS, Haase S, Faisal SM, Thalla R, Dabaja A, Banerjee K, Carney SV, Mujeeb AA, Olin MR, Moon JJ, Schwendeman A, Lowenstein PR, Castro MG. Targeting Neuroinflammation in Brain Cancer: Uncovering Mechanisms, Pharmacological Targets, and Neuropharmaceutical Developments. Front Pharmacol 2021; 12:680021. [PMID: 34084145 PMCID: PMC8167057 DOI: 10.3389/fphar.2021.680021] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 05/04/2021] [Indexed: 12/11/2022] Open
Abstract
Gliomas are one of the most lethal types of cancers accounting for ∼80% of all central nervous system (CNS) primary malignancies. Among gliomas, glioblastomas (GBM) are the most aggressive, characterized by a median patient survival of fewer than 15 months. Recent molecular characterization studies uncovered the genetic signatures and methylation status of gliomas and correlate these with clinical prognosis. The most relevant molecular characteristics for the new glioma classification are IDH mutation, chromosome 1p/19q deletion, histone mutations, and other genetic parameters such as ATRX loss, TP53, and TERT mutations, as well as DNA methylation levels. Similar to other solid tumors, glioma progression is impacted by the complex interactions between the tumor cells and immune cells within the tumor microenvironment. The immune system’s response to cancer can impact the glioma’s survival, proliferation, and invasiveness. Salient characteristics of gliomas include enhanced vascularization, stimulation of a hypoxic tumor microenvironment, increased oxidative stress, and an immune suppressive milieu. These processes promote the neuro-inflammatory tumor microenvironment which can lead to the loss of blood-brain barrier (BBB) integrity. The consequences of a compromised BBB are deleteriously exposing the brain to potentially harmful concentrations of substances from the peripheral circulation, adversely affecting neuronal signaling, and abnormal immune cell infiltration; all of which can lead to disruption of brain homeostasis. In this review, we first describe the unique features of inflammation in CNS tumors. We then discuss the mechanisms of tumor-initiating neuro-inflammatory microenvironment and its impact on tumor invasion and progression. Finally, we also discuss potential pharmacological interventions that can be used to target neuro-inflammation in gliomas.
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Affiliation(s)
- Mahmoud S Alghamri
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Brandon L McClellan
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Margaret S Hartlage
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Santiago Haase
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Syed Mohd Faisal
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Rohit Thalla
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Ali Dabaja
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Kaushik Banerjee
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Stephen V Carney
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Anzar A Mujeeb
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Michael R Olin
- Department of Pediatrics, University of Minnesota, Minneapolis, MN, United States.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, United States
| | - James J Moon
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, United States.,Biointerfaces Institute, University of Michigan, Ann Arbor, MI, United States.,Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States
| | - Anna Schwendeman
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, United States.,Biointerfaces Institute, University of Michigan, Ann Arbor, MI, United States
| | - Pedro R Lowenstein
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States.,Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, United States.,Biosciences Initiative in Brain Cancer, University of Michigan, Ann Arbor, MI, United States
| | - Maria G Castro
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States.,Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, United States.,Biosciences Initiative in Brain Cancer, University of Michigan, Ann Arbor, MI, United States
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7
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Banerjee K, Núñez FJ, Haase S, McClellan BL, Faisal SM, Carney SV, Yu J, Alghamri MS, Asad AS, Candia AJN, Varela ML, Candolfi M, Lowenstein PR, Castro MG. Current Approaches for Glioma Gene Therapy and Virotherapy. Front Mol Neurosci 2021; 14:621831. [PMID: 33790740 PMCID: PMC8006286 DOI: 10.3389/fnmol.2021.621831] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 02/16/2021] [Indexed: 12/13/2022] Open
Abstract
Glioblastoma (GBM) is the most common and aggressive primary brain tumor in the adult population and it carries a dismal prognosis. Inefficient drug delivery across the blood brain barrier (BBB), an immunosuppressive tumor microenvironment (TME) and development of drug resistance are key barriers to successful glioma treatment. Since gliomas occur through sequential acquisition of genetic alterations, gene therapy, which enables to modification of the genetic make-up of target cells, appears to be a promising approach to overcome the obstacles encountered by current therapeutic strategies. Gene therapy is a rapidly evolving field with the ultimate goal of achieving specific delivery of therapeutic molecules using either viral or non-viral delivery vehicles. Gene therapy can also be used to enhance immune responses to tumor antigens, reprogram the TME aiming at blocking glioma-mediated immunosuppression and normalize angiogenesis. Nano-particles-mediated gene therapy is currently being developed to overcome the BBB for glioma treatment. Another approach to enhance the anti-glioma efficacy is the implementation of viro-immunotherapy using oncolytic viruses, which are immunogenic. Oncolytic viruses kill tumor cells due to cancer cell-specific viral replication, and can also initiate an anti-tumor immunity. However, concerns still remain related to off target effects, and therapeutic and transduction efficiency. In this review, we describe the rationale and strategies as well as advantages and disadvantages of current gene therapy approaches against gliomas in clinical and preclinical studies. This includes different delivery systems comprising of viral, and non-viral delivery platforms along with suicide/prodrug, oncolytic, cytokine, and tumor suppressor-mediated gene therapy approaches. In addition, advances in glioma treatment through BBB-disruptive gene therapy and anti-EGFRvIII/VEGFR gene therapy are also discussed. Finally, we discuss the results of gene therapy-mediated human clinical trials for gliomas. In summary, we highlight the progress, prospects and remaining challenges of gene therapies aiming at broadening our understanding and highlighting the therapeutic arsenal for GBM.
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Affiliation(s)
- Kaushik Banerjee
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Felipe J. Núñez
- Laboratory of Molecular and Cellular Therapy, Fundación Instituto Leloir, Buenos Aires, Argentina
| | - Santiago Haase
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Brandon L. McClellan
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Immunology Graduate Program, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Syed M. Faisal
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Stephen V. Carney
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Cancer Biology Graduate Program, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Jin Yu
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Mahmoud S. Alghamri
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Antonela S. Asad
- Departamento de Biología e Histología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Alejandro J. Nicola Candia
- Departamento de Biología e Histología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Maria Luisa Varela
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Marianela Candolfi
- Departamento de Biología e Histología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Pedro R. Lowenstein
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Maria G. Castro
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
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8
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A biomimetic assay platform for the interrogation of antigen-dependent anti-tumor T-cell function. Commun Biol 2021; 4:56. [PMID: 33420321 PMCID: PMC7794535 DOI: 10.1038/s42003-020-01565-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 12/06/2020] [Indexed: 11/08/2022] Open
Abstract
Overcoming tumor-mediated immunosuppression and enhancing cytotoxic T-cell activity within the tumor microenvironment are two central goals of immuno-oncology (IO) drug discovery initiatives. However, exploratory assays involving immune components are often plagued by low-throughput and poor clinical relevance. Here we present an innovative ultra-high-content assay platform for interrogating T-cell-mediated killing of 3D multicellular tumor spheroids. Employing this assay platform in a chemical genomics screen of 1800 annotated compounds enabled identification of small molecule perturbagens capable of enhancing cytotoxic CD8+ T-cell activity in an antigen-dependent manner. Specifically, cyclin-dependent kinase (CDK) and bromodomain (BRD) protein inhibitors were shown to significantly augment anti-tumor T-cell function by increasing cytolytic granule and type II interferon secretion in T-cells in addition to upregulating major histocompatibility complex (MHC) expression and antigen presentation in tumor cells. The described biotechnology screening platform yields multi-parametric, clinically-relevant data and can be employed kinetically for the discovery of first-in-class IO therapeutic agents.
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9
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Faisal SM, Mendez FM, Nunez F, Castro MG, Lowenstein PR. Immune-stimulatory (TK/Flt3L) gene therapy opens the door to a promising new treatment strategy against brainstem gliomas. Oncotarget 2020; 11:4607-4612. [PMID: 33400737 PMCID: PMC7747859 DOI: 10.18632/oncotarget.27834] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 11/18/2020] [Indexed: 11/25/2022] Open
Abstract
Diffuse intrinsic pontine glioma (DIPG) is a rare brainstem tumor which carries a dismal prognosis. To date. there are no effective treatments for DIPG. Transcriptomic studies have shown that DIPGs have a distinct profile compared to hemispheric high-grade pediatric gliomas. These specific genomic features coupled with the younger median age group suggest that DIPG is of developmental origin. There is a major unmet need for novel effective therapeutic approaches for DIPG. Clinical and preclinical studies have expanded our understanding of the molecular pathways in this deadly disease. We have developed a genetically engineered brainstem glioma model harboring the recurrent DIPG mutation, activin A receptor type I (ACVR1)-G328V (mACVR1) using the sleeping beauty transposon system. DIPG neurospheres isolated from the genetically engineered mouse model were implanted into the pons of immune-competent mice to assess the therapeutic efficacy and toxicity of immunostimulatory gene therapy using adenoviruses expressing thymidine kinase (TK) and fms-like tyrosine kinase 3 ligand (Flt3L). Immunostimulatory adenoviral-mediated delivery of TK/Flt3L in mice bearing brainstem gliomas resulted in antitumor immunity, recruitment of antitumor-specific T cells, and improved median survival by stimulating the host antitumor immune response. Therapeutic efficacy of the immunostimulatory gene therapy strategy will be tested in the clinical arena in a Phase I clinical trial. We also discuss immunotherapeutic interventions currently being implemented in DIPG patients and discuss the profound therapeutic implications of immunotherapy for this patient populations.
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Affiliation(s)
- Syed M. Faisal
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Flor M. Mendez
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Fernando Nunez
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Maria G. Castro
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Pedro R. Lowenstein
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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10
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Garcia-Fabiani MB, Ventosa M, Comba A, Candolfi M, Nicola Candia AJ, Alghamri MS, Kadiyala P, Carney S, Faisal SM, Schwendeman A, Moon JJ, Scheetz L, Lahann J, Mauser A, Lowenstein PR, Castro MG. Immunotherapy for gliomas: shedding light on progress in preclinical and clinical development. Expert Opin Investig Drugs 2020; 29:659-684. [PMID: 32400216 DOI: 10.1080/13543784.2020.1768528] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Gliomas are infiltrating brain tumors associated with high morbidity and mortality. Current standard of care includes radiation, chemotherapy, and surgical resection. Today, survival rates for malignant glioma patients remain dismal and unchanged for decades. The glioma microenvironment is highly immunosuppressive and consequently this has motivated the development of immunotherapies for counteracting this condition, enabling the immune cells within the tumor microenvironment to react against this tumor. AREAS COVERED The authors discuss immunotherapeutic strategies for glioma in phase-I/II clinical trials and illuminate their mechanisms of action, limitations, and key challenges. They also examine promising approaches under preclinical development. EXPERT OPINION In the last decade there has been an expansion in immune-mediated anti-cancer therapies. In the glioma field, sophisticated strategies have been successfully implemented in preclinical models. Unfortunately, clinical trials have not yet yielded consistent results for glioma patients. This could be attributed to our limited understanding of the complex immune cell infiltration and its interaction with the tumor cells, the selected time for treatment, the combination with other therapies and the route of administration of the agent. Applying these modalities to treat malignant glioma is challenging, but many new alternatives are emerging to by-pass these hurdles.
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Affiliation(s)
- Maria B Garcia-Fabiani
- Department of Neurosurgery, University of Michigan Medical School , Ann Arbor, MI, USA.,Department of Cell and Developmental Biology, University of Michigan Medical School , Ann Arbor, MI, USA
| | - Maria Ventosa
- Department of Neurosurgery, University of Michigan Medical School , Ann Arbor, MI, USA.,Department of Cell and Developmental Biology, University of Michigan Medical School , Ann Arbor, MI, USA
| | - Andrea Comba
- Department of Neurosurgery, University of Michigan Medical School , Ann Arbor, MI, USA.,Department of Cell and Developmental Biology, University of Michigan Medical School , Ann Arbor, MI, USA
| | - Marianela Candolfi
- Instituto de Investigaciones Biomédicas (INBIOMED, UBA-CONICET), Facultad de Medicina, Universidad de Buenos Aires , Buenos Aires, Argentina
| | - Alejandro J Nicola Candia
- Instituto de Investigaciones Biomédicas (INBIOMED, UBA-CONICET), Facultad de Medicina, Universidad de Buenos Aires , Buenos Aires, Argentina
| | - Mahmoud S Alghamri
- Department of Neurosurgery, University of Michigan Medical School , Ann Arbor, MI, USA.,Department of Cell and Developmental Biology, University of Michigan Medical School , Ann Arbor, MI, USA
| | - Padma Kadiyala
- Department of Neurosurgery, University of Michigan Medical School , Ann Arbor, MI, USA.,Department of Cell and Developmental Biology, University of Michigan Medical School , Ann Arbor, MI, USA
| | - Stephen Carney
- Department of Neurosurgery, University of Michigan Medical School , Ann Arbor, MI, USA.,Cancer Biology Graduate Program, University of Michigan Medical School , Ann Arbor, MI, USA
| | - Syed M Faisal
- Department of Neurosurgery, University of Michigan Medical School , Ann Arbor, MI, USA.,Department of Cell and Developmental Biology, University of Michigan Medical School , Ann Arbor, MI, USA
| | - Anna Schwendeman
- Department of Pharmaceutical Sciences, University of Michigan , Ann Arbor, MI, USA.,Biointerfaces Institute, University of Michigan , Ann Arbor, MI, USA
| | - James J Moon
- Department of Pharmaceutical Sciences, University of Michigan , Ann Arbor, MI, USA.,Biointerfaces Institute, University of Michigan , Ann Arbor, MI, USA.,Department of Biomedical Engineering, University of Michigan , Ann Arbor, MI, USA
| | - Lindsay Scheetz
- Department of Pharmaceutical Sciences, University of Michigan , Ann Arbor, MI, USA.,Biointerfaces Institute, University of Michigan , Ann Arbor, MI, USA
| | - Joerg Lahann
- Biointerfaces Institute, University of Michigan , Ann Arbor, MI, USA.,Department of Chemical Engineering, University of Michigan , Ann Arbor, MI, USA
| | - Ava Mauser
- Biointerfaces Institute, University of Michigan , Ann Arbor, MI, USA.,Department of Chemical Engineering, University of Michigan , Ann Arbor, MI, USA
| | - Pedro R Lowenstein
- Department of Neurosurgery, University of Michigan Medical School , Ann Arbor, MI, USA.,Department of Cell and Developmental Biology, University of Michigan Medical School , Ann Arbor, MI, USA.,Biointerfaces Institute, University of Michigan , Ann Arbor, MI, USA
| | - Maria G Castro
- Department of Neurosurgery, University of Michigan Medical School , Ann Arbor, MI, USA.,Department of Cell and Developmental Biology, University of Michigan Medical School , Ann Arbor, MI, USA.,Biointerfaces Institute, University of Michigan , Ann Arbor, MI, USA
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11
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Dan H, Liu S, Liu J, Liu D, Yin F, Wei Z, Wang J, Zhou Y, Jiang L, Ji N, Zeng X, Li J, Chen Q. RACK1 promotes cancer progression by increasing the M2/M1 macrophage ratio via the NF-κB pathway in oral squamous cell carcinoma. Mol Oncol 2020; 14:795-807. [PMID: 31997535 PMCID: PMC7138402 DOI: 10.1002/1878-0261.12644] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 10/14/2019] [Accepted: 01/28/2020] [Indexed: 02/05/2023] Open
Abstract
Receptor for activated C kinase 1 (RACK1) has been shown to promote oral squamous cell carcinoma (OSCC) progression, and RACK1 expression levels have been negatively correlated with prognosis in patients with OSCC. Here, we investigated the impact of RACK1 OSCC expression on the recruitment and differentiation of tumor-associated macrophages. High RACK1 expression in OSCC cells correlated with increased M2 macrophage infiltration in tumor samples from a clinical cohort study. Moreover, the combination of RACK1 expression and the M2/M1 ratio could successfully predict prognosis in OSCC. OSCC cells with high RACK1 expression inhibited the migration of THP-1 cells, promoted M2-like macrophage polarization in vitro, and increased the proportion of M2-like macrophages in a xenograft mouse model. Moreover, both M1- and M2-like macrophage polarization-associated proteins were induced in macrophages cocultured with RACK1-silenced cell supernatant. A mechanistic study revealed that the expression and secretion of C-C motif chemokine 2 (CCL2), C-C motif chemokine 5 (CCL5), interleukin-6 (IL-6), and interleukin-1 (IL-1) are closely related to RACK1 expression. In addition, blocking nuclear factor-kappa B (NF-κB) could promote M2-like macrophage polarization. These results indicate that RACK1 and the M2/M1 ratio are predictors of a poor prognosis in OSCC. RACK1 promotes M2-like polarization by regulating NF-κB and could be used as a potential therapeutic target for antitumor immunity.
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Affiliation(s)
- Hongxia Dan
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesChinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and ManagementWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Sai Liu
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesChinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and ManagementWest China Hospital of StomatologySichuan UniversityChengduChina
- Department of Oral PathologyDepartment of Dental MaterialsSchool of StomatologyChina Medical UniversityShenyangChina
| | - Jiajia Liu
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesChinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and ManagementWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Dongjuan Liu
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesChinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and ManagementWest China Hospital of StomatologySichuan UniversityChengduChina
- Department of Oral PathologyDepartment of Dental MaterialsSchool of StomatologyChina Medical UniversityShenyangChina
| | - Fengying Yin
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesChinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and ManagementWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Zihao Wei
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesChinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and ManagementWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Jiongke Wang
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesChinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and ManagementWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Yu Zhou
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesChinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and ManagementWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Lu Jiang
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesChinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and ManagementWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Ning Ji
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesChinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and ManagementWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Xin Zeng
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesChinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and ManagementWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Jing Li
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesChinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and ManagementWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Qianming Chen
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesChinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and ManagementWest China Hospital of StomatologySichuan UniversityChengduChina
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12
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Nakamura K, Yaguchi T, Ohmura G, Kobayashi A, Kawamura N, Iwata T, Kiniwa Y, Okuyama R, Kawakami Y. Involvement of local renin-angiotensin system in immunosuppression of tumor microenvironment. Cancer Sci 2017; 109:54-64. [PMID: 29034589 PMCID: PMC5765296 DOI: 10.1111/cas.13423] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 10/07/2017] [Accepted: 10/10/2017] [Indexed: 12/16/2022] Open
Abstract
To improve current cancer immunotherapies, strategies to modulate various immunosuppressive cells including myeloid derived suppressor cells (MDSC) which were shown to be negative factors in immune‐checkpoint blockade therapy, need to be developed. In the present study, we evaluated the role of the local renin‐angiotensin system (RAS) in the tumor immune‐microenvironment using murine models bearing tumor cell lines in which RAS was not involved in their proliferation and angiogenetic ability. Giving angiotensin II receptor blockers (ARB) to C57BL/6 mice bearing murine colon cancer cell line MC38 resulted in significant enhancement of tumor antigen gp70 specific T cells. ARB administration did not change the numbers of CD11b+ myeloid cells in tumors, but significantly reduced their T‐cell inhibitory ability along with decreased production of various immunosuppressive factors including interleukin (IL)‐6, IL‐10, vascular endothelial growth factor (VEGF), and arginase by CD11b+ cells in tumors. ARB also decreased expression of immunosuppressive factors such as chemokine ligand 12 and nitric oxide synthase 2 in cancer‐associated fibroblasts (CAF). Last, combination of ARB and anti‐programmed death‐ligand 1 (PD‐L1) antibodies resulted in significant augmentation of anti‐tumor effects in a CD8+ T cell‐dependent way. These results showed that RAS is involved in the generation of an immunosuppressive tumor microenvironment caused by myeloid cells and fibroblasts, other than the previously shown proliferative and angiogenetic properties of cancer cells and macrophages, and that ARB can transform the immunosuppressive properties of MDSC and CAF and could be used in combination with PD‐1/PD‐L1 immune‐checkpoint blockade therapy.
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Affiliation(s)
- Kenta Nakamura
- Division of Cellular Signaling, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan.,Department of Dermatology, Shinshu University School of Medicine, Nagano, Japan
| | - Tomonori Yaguchi
- Division of Cellular Signaling, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - Gaku Ohmura
- Division of Cellular Signaling, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - Asuka Kobayashi
- Division of Cellular Signaling, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - Naoshi Kawamura
- Division of Cellular Signaling, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - Takashi Iwata
- Division of Cellular Signaling, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - Yukiko Kiniwa
- Department of Dermatology, Shinshu University School of Medicine, Nagano, Japan
| | - Ryuhei Okuyama
- Department of Dermatology, Shinshu University School of Medicine, Nagano, Japan
| | - Yutaka Kawakami
- Division of Cellular Signaling, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
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13
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Fan W, Yung B, Huang P, Chen X. Nanotechnology for Multimodal Synergistic Cancer Therapy. Chem Rev 2017; 117:13566-13638. [DOI: 10.1021/acs.chemrev.7b00258] [Citation(s) in RCA: 1059] [Impact Index Per Article: 151.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Wenpei Fan
- Guangdong
Key Laboratory for Biomedical Measurements and Ultrasound Imaging,
School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China
- Key
Laboratory of Optoelectronic Devices and Systems of Ministry of Education
and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
- Laboratory
of Molecular Imaging and Nanomedicine, National Institute of Biomedical
Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Bryant Yung
- Laboratory
of Molecular Imaging and Nanomedicine, National Institute of Biomedical
Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Peng Huang
- Guangdong
Key Laboratory for Biomedical Measurements and Ultrasound Imaging,
School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China
| | - Xiaoyuan Chen
- Laboratory
of Molecular Imaging and Nanomedicine, National Institute of Biomedical
Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, United States
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14
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ALA-PpIX mediated photodynamic therapy of malignant gliomas augmented by hypothermia. PLoS One 2017; 12:e0181654. [PMID: 28759636 PMCID: PMC5536352 DOI: 10.1371/journal.pone.0181654] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 07/05/2017] [Indexed: 12/03/2022] Open
Abstract
Background Malignant gliomas are highly invasive, difficult to treat, and account for 2% of cancer deaths worldwide. Glioblastoma Multiforme (GBM) comprises the most common and aggressive intracranial tumor. The study hypothesis is to investigate the modification of Photodynamic Therapy (PDT) efficacy by mild hypothermia leads to increased glioma cell kill while protecting normal neuronal structures. Methods Photosensitizer accumulation and PDT efficacy in vitro were quantified in various glioma cell lines, primary rat neurons, and astrocytes. In vivo studies were carried out in healthy brain and RG2 glioma of naïve Fischer rats. Hypothermia was induced at 1 hour pre- to 2 hours post-PDT, with ALA-PpIX accumulation and PDT treatments effects on tumor and normal brain PDT quantified using optical spectroscopy, histology, immunohistochemistry, MRI, and survival studies, respectively. Findings In vitro studies demonstrated significantly improved post-PDT survival in primary rat neuronal cells. Rat in vivo studies confirmed a neuroprotective effect to hypothermia following PpIX mediated PDT by T2 mapping at day 10, reflecting edema/inflammation volume reduction. Mild hypothermia increased PpIX fluorescence in tumors five-fold, and the median post-PDT rat survival time (8.5 days normothermia; 14 days hypothermia). Histology and immunohistochemistry show close to complete cellular protection in normal brain structures under hypothermia. Conclusions The benefits of hypothermia on both normal neuronal tissue as well as increased PpIX fluorescence and RG2 induced rat survival strongly suggest a role for hypothermia in photonics-based surgical techniques, and that a hypothermic intervention could lead to considerable patient outcome improvements.
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15
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Kamran N, Kadiyala P, Saxena M, Candolfi M, Li Y, Moreno-Ayala MA, Raja N, Shah D, Lowenstein PR, Castro MG. Immunosuppressive Myeloid Cells' Blockade in the Glioma Microenvironment Enhances the Efficacy of Immune-Stimulatory Gene Therapy. Mol Ther 2017; 25:232-248. [PMID: 28129117 DOI: 10.1016/j.ymthe.2016.10.003] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 10/06/2016] [Accepted: 10/06/2016] [Indexed: 12/25/2022] Open
Abstract
Survival of glioma (GBM) patients treated with the current standard of care remains dismal. Immunotherapeutic approaches that harness the cytotoxic and memory potential of the host immune system have shown great benefit in other cancers. GBMs have developed multiple strategies, including the accumulation of myeloid-derived suppressor cells (MDSCs) to induce immunosuppression. It is therefore imperative to develop multipronged approaches when aiming to generate a robust anti-tumor immune response. Herein, we tested whether combining MDSC depletion or checkpoint blockade would augment the efficacy of immune-stimulatory herpes simplex type-I thymidine kinase (TK) plus Fms-like tyrosine kinase ligand (Flt3L)-mediated immune stimulatory gene therapy. Our results show that MDSCs constitute >40% of the tumor-infiltrating immune cells. These cells express IL-4Rα, inducible nitric oxide synthase (iNOS), arginase, programmed death ligand 1 (PDL1), and CD80, molecules that are critically involved in antigen-specific T cell suppression. Depletion of MDSCs strongly enhanced the TK/Flt3L gene therapy-induced tumor-specific CD8 T cell response, which lead to increased median survival and percentage of long-term survivors. Also, combining PDL1 or CTLA-4 immune checkpoint blockade greatly improved the efficacy of TK/Flt3L gene therapy. Our results, therefore, indicate that blocking MDSC-mediated immunosuppression holds great promise for increasing the efficacy of gene therapy-mediated immunotherapies for GBM.
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Affiliation(s)
- Neha Kamran
- Department of Neurosurgery, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA; Department of Cell and Developmental Biology, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA
| | - Padma Kadiyala
- Department of Neurosurgery, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA; Department of Cell and Developmental Biology, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA
| | - Meghna Saxena
- Department of Neurosurgery, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA; Department of Cell and Developmental Biology, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA
| | - Marianela Candolfi
- Instituto de Investigaciones Biomédicas (CONICET-UBA), Facultad de Medicina, Universidad de Buenos Aires, 1053 Buenos Aires, Argentina
| | - Youping Li
- Department of Neurosurgery, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA; Department of Cell and Developmental Biology, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA
| | - Mariela A Moreno-Ayala
- Department of Neurosurgery, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA; Department of Cell and Developmental Biology, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA; Instituto de Investigaciones Biomédicas (CONICET-UBA), Facultad de Medicina, Universidad de Buenos Aires, 1053 Buenos Aires, Argentina
| | - Nicholas Raja
- Department of Neurosurgery, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA; Department of Cell and Developmental Biology, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA
| | - Diana Shah
- Department of Neurosurgery, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA; Department of Cell and Developmental Biology, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA
| | - Pedro R Lowenstein
- Department of Neurosurgery, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA; Department of Cell and Developmental Biology, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA
| | - Maria G Castro
- Department of Neurosurgery, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA; Department of Cell and Developmental Biology, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA.
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16
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VanderVeen N, Raja N, Yi E, Appelman H, Ng P, Palmer D, Zamler D, Dzaman M, Lowenstein PR, Castro MG. Preclinical Efficacy and Safety Profile of Allometrically Scaled Doses of Doxycycline Used to Turn "On" Therapeutic Transgene Expression from High-Capacity Adenoviral Vectors in a Glioma Model. Hum Gene Ther Methods 2016; 27:98-111. [PMID: 27056322 PMCID: PMC4926229 DOI: 10.1089/hgtb.2015.168] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 03/29/2016] [Indexed: 01/05/2023] Open
Abstract
Glioblastoma multiforme (GBM) is the most commonly occurring primary brain cancer in adults, in whom its highly infiltrative cells prevent total surgical resection, often leading to tumor recurrence and patient death. Our group has discovered a gene therapy approach for GBM that utilizes high-capacity "gutless" adenoviral vectors encoding regulatable therapeutic transgenes. The herpes simplex type 1-thymidine kinase (TK) actively kills dividing tumor cells in the brain when in the presence of the prodrug, ganciclovir (GCV), whereas the FMS-like tyrosine kinase 3 ligand (Flt3L) is an immune-stimulatory molecule under tight regulation by a tetracycline-inducible "Tet-On" activation system that induces anti-GBM immunity. As a prelude to a phase I clinical trial, we evaluated the safety and efficacy of Food and Drug Administration (FDA)-approved doses of the tetracycline doxycycline (DOX) allometrically scaled for rats. DOX initiates the expression of Flt3L, which has been shown to recruit dendritic cells to the brain tumor microenvironment-an integral first step in the development of antitumor immunity. The data revealed a highly safe profile surrounding these human-equivalent doses of DOX under an identical therapeutic window as proposed in the clinical trial. This was confirmed through a neuropathological analysis, liver and kidney histopathology, detection of neutralizing antibodies, and systemic toxicities in the blood. Interestingly, we observed a significant survival advantage in rats with GBM receiving the 300 mg/day equivalent dosage of DOX versus the 200 mg/day equivalent. Additionally, rats rejected "recurrent" brain tumor threats implanted 90 days after their primary brain tumors. We also show that DOX detection within the plasma can be an indicator of optimal dosing of DOX to attain therapeutic levels. This work has significant clinical relevance for an ongoing phase I clinical trial in humans with primary GBM and for other therapeutic approaches using Tet-On transactivation system in humans.
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Affiliation(s)
- Nathan VanderVeen
- Department of Neurosurgery, The University of Michigan Medical School, Ann Arbor, Michigan
- Department of Cell and Developmental Biology, The University of Michigan Medical School, Ann Arbor, Michigan
| | - Nicholas Raja
- Department of Neurosurgery, The University of Michigan Medical School, Ann Arbor, Michigan
- Department of Cell and Developmental Biology, The University of Michigan Medical School, Ann Arbor, Michigan
| | - Elizabeth Yi
- Department of Neurosurgery, The University of Michigan Medical School, Ann Arbor, Michigan
- Department of Cell and Developmental Biology, The University of Michigan Medical School, Ann Arbor, Michigan
| | - Henry Appelman
- Department of Pathology, The University of Michigan Medical School, Ann Arbor, Michigan
| | - Philip Ng
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Donna Palmer
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Daniel Zamler
- Department of Neurosurgery, The University of Michigan Medical School, Ann Arbor, Michigan
- Department of Cell and Developmental Biology, The University of Michigan Medical School, Ann Arbor, Michigan
| | - Marta Dzaman
- Department of Neurosurgery, The University of Michigan Medical School, Ann Arbor, Michigan
- Department of Cell and Developmental Biology, The University of Michigan Medical School, Ann Arbor, Michigan
| | - Pedro R. Lowenstein
- Department of Neurosurgery, The University of Michigan Medical School, Ann Arbor, Michigan
- Department of Cell and Developmental Biology, The University of Michigan Medical School, Ann Arbor, Michigan
| | - Maria G. Castro
- Department of Neurosurgery, The University of Michigan Medical School, Ann Arbor, Michigan
- Department of Cell and Developmental Biology, The University of Michigan Medical School, Ann Arbor, Michigan
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17
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Hu S, Li B, Shen X, Zhang R, Gao D, Guo Q, Jin Y, Fei Z. Induction of antigen-specific cytotoxic T-cell response by dendritic cells generated from ecto-mesenchymal stem cells infected with an adenovirus containing the MAGE-D4a gene. Oncol Lett 2016; 11:2886-2892. [PMID: 27073570 DOI: 10.3892/ol.2016.4306] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Accepted: 01/11/2016] [Indexed: 11/05/2022] Open
Abstract
The present study aimed to investigate the feasibility of using ecto-mesenchymal stem cell (EMSC)-derived dendritic cells (DCs) for glioma immunotherapy following infection by a recombinant adenovirus containing the melanoma-associated antigen D4a (MAGE-D4a) gene. The ex vivo cultured EMSCs were infected by the adenoviral plasmid containing MAGE-D4a (pAd/MAGE-D4a). Efficiency of transfection was evaluated through the detection of green fluorescent protein-marked MAGE-D4a. The MAGE-EMSCs were induced to differentiate into DCs, termed as MAGE-EMSCs-DCs. The morphology was subsequently analyzed under a microscope, and methyl thiazolyl tetrazolium (MTT) and interferon-γ (IFN-γ) assays were performed to analyze the cytotoxicity of the MAGE-EMSC-DCs on the human glioma U251 cell line. Following purification by magnetic-activated cell sorting, the EMSCs grew into swirls, with a long spindle shape and were fibroblast-like. The gene transfected with recombinant adenovirus vectors maintained high and stable expression levels of MAGE-D4a, and its efficiency was increased in a multiplicity of infection-dependent manner. The results of the MTT assay indicated that the T cells, primed by the recombinant MAGE-D4a-infected EMSC-DCs in vitro, recognized MAGE-D4a-expressing tumor cell lines in a human leukocyte antigen class I-restricted manner, and evoked a higher cytotoxic T cell (CTL) response. The CTL response induced by the MAGE-EMSC-DCs, co-cultured with the U251 cells for 24 h, produced 765.0 pg/ml IFN-γ, which was significantly greater when compared to the control wells. T lymphocytes stimulated by MAGE-EMSC-DCs evoke a higher CTL response to human glioma cell lines, and may serve as a promising therapeutic modality for the treatment of MAGE-D4a-expressing glioma.
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Affiliation(s)
- Shijie Hu
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Bing Li
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Xuefeng Shen
- Department of Occupational and Environmental Health and The Ministry of Education Key Laboratory of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Rui Zhang
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Dakuan Gao
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Qingdong Guo
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yan Jin
- Department of Oral Histology and Pathology, Research and Development Center for Tissue Engineering, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Zhou Fei
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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18
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Samadi AK, Bilsland A, Georgakilas AG, Amedei A, Amin A, Bishayee A, Azmi AS, Lokeshwar BL, Grue B, Panis C, Boosani CS, Poudyal D, Stafforini DM, Bhakta D, Niccolai E, Guha G, Vasantha Rupasinghe HP, Fujii H, Honoki K, Mehta K, Aquilano K, Lowe L, Hofseth LJ, Ricciardiello L, Ciriolo MR, Singh N, Whelan RL, Chaturvedi R, Ashraf SS, Shantha Kumara HMC, Nowsheen S, Mohammed SI, Keith WN, Helferich WG, Yang X. A multi-targeted approach to suppress tumor-promoting inflammation. Semin Cancer Biol 2015; 35 Suppl:S151-S184. [PMID: 25951989 PMCID: PMC4635070 DOI: 10.1016/j.semcancer.2015.03.006] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 03/13/2015] [Accepted: 03/16/2015] [Indexed: 12/15/2022]
Abstract
Cancers harbor significant genetic heterogeneity and patterns of relapse following many therapies are due to evolved resistance to treatment. While efforts have been made to combine targeted therapies, significant levels of toxicity have stymied efforts to effectively treat cancer with multi-drug combinations using currently approved therapeutics. We discuss the relationship between tumor-promoting inflammation and cancer as part of a larger effort to develop a broad-spectrum therapeutic approach aimed at a wide range of targets to address this heterogeneity. Specifically, macrophage migration inhibitory factor, cyclooxygenase-2, transcription factor nuclear factor-κB, tumor necrosis factor alpha, inducible nitric oxide synthase, protein kinase B, and CXC chemokines are reviewed as important antiinflammatory targets while curcumin, resveratrol, epigallocatechin gallate, genistein, lycopene, and anthocyanins are reviewed as low-cost, low toxicity means by which these targets might all be reached simultaneously. Future translational work will need to assess the resulting synergies of rationally designed antiinflammatory mixtures (employing low-toxicity constituents), and then combine this with similar approaches targeting the most important pathways across the range of cancer hallmark phenotypes.
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Affiliation(s)
| | - Alan Bilsland
- Institute of Cancer Sciences, University of Glasgow, Glasgow, Scotland, UK
| | - Alexandros G Georgakilas
- Physics Department, School of Applied Mathematics and Physical Sciences, National Technical University of Athens, Athens, Greece
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Amr Amin
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates; Faculty of Science, Cairo University, Cairo, Egypt
| | - Anupam Bishayee
- Department of Pharmaceutical Sciences, College of Pharmacy, Larkin Health Sciences Institute, Miami, FL, United States
| | - Asfar S Azmi
- Department of Pathology, Wayne State Univeristy, Karmanos Cancer Center, Detroit, MI, USA
| | - Bal L Lokeshwar
- Department of Urology, University of Miami, Miller School of Medicine, Miami, FL, United States; Miami Veterans Administration Medical Center, Miami, FL, United States
| | - Brendan Grue
- Department of Environmental Science, Dalhousie University, Halifax, Nova Scotia, Canada; Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Carolina Panis
- Laboratory of Inflammatory Mediators, State University of West Paraná, UNIOESTE, Paraná, Brazil
| | - Chandra S Boosani
- Department of BioMedical Sciences, School of Medicine, Creighton University, Omaha, NE, United States
| | - Deepak Poudyal
- Department of Drug Discovery and Biomedical Sciences, South Carolina College of Pharmacy, University of South Carolina, Columbia, SC, United States
| | - Diana M Stafforini
- Huntsman Cancer Institute and Department of Internal Medicine, University of Utah, Salt Lake City, UT, United States
| | - Dipita Bhakta
- School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India
| | | | - Gunjan Guha
- School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India
| | - H P Vasantha Rupasinghe
- Department of Environmental Sciences, Faculty of Agriculture and Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Hiromasa Fujii
- Department of Orthopedic Surgery, Nara Medical University, Kashihara, Nara, Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, Kashihara, Nara, Japan
| | - Kapil Mehta
- Department of Experimental Therapeutics, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Katia Aquilano
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Leroy Lowe
- Getting to Know Cancer, Truro, Nova Scotia, Canada.
| | - Lorne J Hofseth
- Department of Drug Discovery and Biomedical Sciences, South Carolina College of Pharmacy, University of South Carolina, Columbia, SC, United States
| | - Luigi Ricciardiello
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | | | - Neetu Singh
- Advanced Molecular Science Research Centre (Centre for Advanced Research), King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Richard L Whelan
- Department of Surgery, St. Luke's Roosevelt Hospital, New York, NY, United States
| | - Rupesh Chaturvedi
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - S Salman Ashraf
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - H M C Shantha Kumara
- Department of Surgery, St. Luke's Roosevelt Hospital, New York, NY, United States
| | - Somaira Nowsheen
- Medical Scientist Training Program, Mayo Graduate School, Mayo Medical School, Mayo Clinic, Rochester, MN, United States
| | - Sulma I Mohammed
- Department of Comparative Pathobiology, Purdue University Center for Cancer Research, West Lafayette, IN, United States
| | - W Nicol Keith
- Institute of Cancer Sciences, University of Glasgow, Glasgow, Scotland, UK
| | | | - Xujuan Yang
- University of Illinois at Urbana Champaign, Champaign, IL, United States
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19
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Feitelson MA, Arzumanyan A, Kulathinal RJ, Blain SW, Holcombe RF, Mahajna J, Marino M, Martinez-Chantar ML, Nawroth R, Sanchez-Garcia I, Sharma D, Saxena NK, Singh N, Vlachostergios PJ, Guo S, Honoki K, Fujii H, Georgakilas AG, Bilsland A, Amedei A, Niccolai E, Amin A, Ashraf SS, Boosani CS, Guha G, Ciriolo MR, Aquilano K, Chen S, Mohammed SI, Azmi AS, Bhakta D, Halicka D, Keith WN, Nowsheen S. Sustained proliferation in cancer: Mechanisms and novel therapeutic targets. Semin Cancer Biol 2015; 35 Suppl:S25-S54. [PMID: 25892662 PMCID: PMC4898971 DOI: 10.1016/j.semcancer.2015.02.006] [Citation(s) in RCA: 406] [Impact Index Per Article: 45.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 02/20/2015] [Accepted: 02/23/2015] [Indexed: 02/08/2023]
Abstract
Proliferation is an important part of cancer development and progression. This is manifest by altered expression and/or activity of cell cycle related proteins. Constitutive activation of many signal transduction pathways also stimulates cell growth. Early steps in tumor development are associated with a fibrogenic response and the development of a hypoxic environment which favors the survival and proliferation of cancer stem cells. Part of the survival strategy of cancer stem cells may manifested by alterations in cell metabolism. Once tumors appear, growth and metastasis may be supported by overproduction of appropriate hormones (in hormonally dependent cancers), by promoting angiogenesis, by undergoing epithelial to mesenchymal transition, by triggering autophagy, and by taking cues from surrounding stromal cells. A number of natural compounds (e.g., curcumin, resveratrol, indole-3-carbinol, brassinin, sulforaphane, epigallocatechin-3-gallate, genistein, ellagitannins, lycopene and quercetin) have been found to inhibit one or more pathways that contribute to proliferation (e.g., hypoxia inducible factor 1, nuclear factor kappa B, phosphoinositide 3 kinase/Akt, insulin-like growth factor receptor 1, Wnt, cell cycle associated proteins, as well as androgen and estrogen receptor signaling). These data, in combination with bioinformatics analyses, will be very important for identifying signaling pathways and molecular targets that may provide early diagnostic markers and/or critical targets for the development of new drugs or drug combinations that block tumor formation and progression.
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Affiliation(s)
- Mark A Feitelson
- Department of Biology, Temple University, Philadelphia, PA, United States.
| | - Alla Arzumanyan
- Department of Biology, Temple University, Philadelphia, PA, United States
| | - Rob J Kulathinal
- Department of Biology, Temple University, Philadelphia, PA, United States
| | - Stacy W Blain
- Department of Pediatrics, State University of New York, Downstate Medical Center, Brooklyn, NY, United States
| | - Randall F Holcombe
- Tisch Cancer Institute, Mount Sinai School of Medicine, New York, NY, United States
| | - Jamal Mahajna
- MIGAL-Galilee Technology Center, Cancer Drug Discovery Program, Kiryat Shmona, Israel
| | - Maria Marino
- Department of Science, University Roma Tre, V.le G. Marconi, 446, 00146 Rome, Italy
| | - Maria L Martinez-Chantar
- Metabolomic Unit, CIC bioGUNE, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Technology Park of Bizkaia, Bizkaia, Spain
| | - Roman Nawroth
- Department of Urology, Klinikum rechts der Isar der Technischen Universität München, Munich, Germany
| | - Isidro Sanchez-Garcia
- Experimental Therapeutics and Translational Oncology Program, Instituto de Biología Molecular y Celular del Cáncer, CSIC/Universidad de Salamanca, Salamanca, Spain
| | - Dipali Sharma
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Neeraj K Saxena
- Department of Oncology, Johns Hopkins University School of Medicine and the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, United States
| | - Neetu Singh
- Tissue and Cell Culture Unit, CSIR-Central Drug Research Institute, Council of Scientific & Industrial Research, Lucknow, India
| | | | - Shanchun Guo
- Department of Microbiology, Biochemistry & Immunology, Morehouse School of Medicine, Atlanta, GA, United States
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, Kashihara 634-8521, Japan
| | - Hiromasa Fujii
- Department of Orthopedic Surgery, Nara Medical University, Kashihara 634-8521, Japan
| | - Alexandros G Georgakilas
- Physics Department, School of Applied Mathematical and Physical Sciences, National Technical University of Athens, Zografou 15780, Athens, Greece
| | - Alan Bilsland
- Institute of Cancer Sciences, University of Glasgow, UK
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
| | - Elena Niccolai
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
| | - Amr Amin
- Department of Biology, College of Science, UAE University, Al-Ain, United Arab Emirates
| | - S Salman Ashraf
- Department of Chemistry, College of Science, UAE University, Al-Ain, United Arab Emirates
| | - Chandra S Boosani
- Department of BioMedical Sciences, Creighton University, Omaha, NE, United States
| | - Gunjan Guha
- School of Chemical and Bio Technology, SASTRA University, Thanjavur, India
| | - Maria Rosa Ciriolo
- Department of Biology, University of Rome "Tor Vergata", 00133 Rome, Italy
| | - Katia Aquilano
- Department of Biology, University of Rome "Tor Vergata", 00133 Rome, Italy
| | - Sophie Chen
- Department of Research and Development, Ovarian and Prostate Cancer Research Trust Laboratory, Guildford, Surrey GU2 7YG, United Kingdom
| | - Sulma I Mohammed
- Department of Comparative Pathobiology, Purdue University Center for Cancer Research, West Lafayette, IN, United States
| | - Asfar S Azmi
- Department of Pathology, Karmonas Cancer Institute, Wayne State University School of Medicine, Detroit, MI, United States
| | - Dipita Bhakta
- School of Chemical and Bio Technology, SASTRA University, Thanjavur, India
| | - Dorota Halicka
- Brander Cancer Research Institute, Department of Pathology, New York Medical College, Valhalla, NY, United States
| | - W Nicol Keith
- Institute of Cancer Sciences, University of Glasgow, UK
| | - Somaira Nowsheen
- Mayo Graduate School, Mayo Medical School, Mayo Clinic Medical Scientist Training Program, Rochester, MN, United States
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20
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Dendritic Cell-Based Immunotherapy Treatment for Glioblastoma Multiforme. BIOMED RESEARCH INTERNATIONAL 2015; 2015:717530. [PMID: 26167495 PMCID: PMC4488155 DOI: 10.1155/2015/717530] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 01/08/2015] [Indexed: 12/23/2022]
Abstract
Glioblastoma multiforme (GBM) is the most malignant glioma and patients diagnosed with this disease had poor outcomes even treated with the combination of conventional treatment (surgery, chemotherapy, and radiation). Dendritic cells (DCs) are the most powerful antigen presenting cells and DC-based vaccination has the potential to target and eliminate GBM cells and enhance the responses of these cells to the existing therapies with minimal damage to the healthy tissues around them. It can enhance recognition of GBM cells by the patients' immune system and activate vast, potent, and long-lasting immune reactions to eliminate them. Therefore, this therapy can prolong the survival of GBM patients and has wide and bright future in the treatment of GBM. Also, the efficacy of this therapy can be strengthened in several ways at some degree: the manipulation of immune regulatory components or costimulatory molecules on DCs; the appropriate choices of antigens for loading to enhance the effectiveness of the therapy; regulation of positive regulators or negative regulators in GBM microenvironment.
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21
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Tissue invasion and metastasis: Molecular, biological and clinical perspectives. Semin Cancer Biol 2015; 35 Suppl:S244-S275. [PMID: 25865774 DOI: 10.1016/j.semcancer.2015.03.008] [Citation(s) in RCA: 327] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 03/17/2015] [Accepted: 03/18/2015] [Indexed: 12/12/2022]
Abstract
Cancer is a key health issue across the world, causing substantial patient morbidity and mortality. Patient prognosis is tightly linked with metastatic dissemination of the disease to distant sites, with metastatic diseases accounting for a vast percentage of cancer patient mortality. While advances in this area have been made, the process of cancer metastasis and the factors governing cancer spread and establishment at secondary locations is still poorly understood. The current article summarizes recent progress in this area of research, both in the understanding of the underlying biological processes and in the therapeutic strategies for the management of metastasis. This review lists the disruption of E-cadherin and tight junctions, key signaling pathways, including urokinase type plasminogen activator (uPA), phosphatidylinositol 3-kinase/v-akt murine thymoma viral oncogene (PI3K/AKT), focal adhesion kinase (FAK), β-catenin/zinc finger E-box binding homeobox 1 (ZEB-1) and transforming growth factor beta (TGF-β), together with inactivation of activator protein-1 (AP-1) and suppression of matrix metalloproteinase-9 (MMP-9) activity as key targets and the use of phytochemicals, or natural products, such as those from Agaricus blazei, Albatrellus confluens, Cordyceps militaris, Ganoderma lucidum, Poria cocos and Silybum marianum, together with diet derived fatty acids gamma linolenic acid (GLA) and eicosapentanoic acid (EPA) and inhibitory compounds as useful approaches to target tissue invasion and metastasis as well as other hallmark areas of cancer. Together, these strategies could represent new, inexpensive, low toxicity strategies to aid in the management of cancer metastasis as well as having holistic effects against other cancer hallmarks.
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22
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Renault IZ, Golgher D. Molecular genetics of glioblastomas: defining subtypes and understanding the biology. Neuroimaging Clin N Am 2014; 25:97-103. [PMID: 25476515 DOI: 10.1016/j.nic.2014.09.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Despite comprehensive therapy, which includes surgery, radiotherapy, and chemotherapy, the prognosis of glioblastoma multiforme is very poor. Diagnosed individuals present an average of 12 to 18 months of life. This article provides an overview of the molecular genetics of these tumors. Despite the overwhelming amount of data available, so far little has been translated into real benefits for the patient. Because this is such a complex topic, the goal is to point out the main alterations in the biological pathways that lead to tumor formation, and how this can contribute to the development of better therapies and clinical care.
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Affiliation(s)
| | - Denise Golgher
- Symbiosis-Biotechnology Consultancy, Rio de Janeiro, Brazil
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23
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Mineharu Y, Kamran N, Lowenstein PR, Castro MG. Blockade of mTOR signaling via rapamycin combined with immunotherapy augments antiglioma cytotoxic and memory T-cell functions. Mol Cancer Ther 2014; 13:3024-36. [PMID: 25256739 DOI: 10.1158/1535-7163.mct-14-0400] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The success of immunotherapeutic approaches targeting glioblastoma multiforme (GBM) demands a robust antiglioma T-cell cytotoxic and memory response. Recent evidence suggests that rapamycin regulates T-cell differentiation. Herein, we tested whether administration of rapamycin could enhance the efficacy of immunotherapy utilizing Fms-like tyrosine kinase 3 ligand (Ad-Flt3L) and thymidine kinase/ganciclovir (Ad-TK/GCV). Using the refractory rat RG2 glioma model, we demonstrate that administration of rapamycin with Ad-Flt3L + Ad-TK/GCV immunotherapy enhanced the cytotoxic activity of antitumor CD8(+) T cells. Rats treated with rapamycin + Ad-Flt3L + Ad-TK/GCV exhibited massive reduction in the tumor volume and extended survival. Rapamycin administration also prolonged the survival of Ad-Flt3L + Ad-TK/GCV-treated GL26 tumor-bearing mice, associated with an increase in the frequency of tumor-specific and IFNγ(+) CD8(+) T cells. More importantly, rapamycin administration, even for a short interval, elicited a potent long-lasting central memory CD8(+) T-cell response. The enhanced memory response translated to an increased frequency of tumor-specific CD8(+) T cells within the tumor and IFNγ release, providing the mice with long-term survival advantage in response to tumor rechallenge. Our data, therefore, point to rapamycin as an attractive adjuvant to be used in combination with immunotherapy in a phase I clinical trial for GBM.
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Affiliation(s)
- Yohei Mineharu
- Department of Neurosurgery, The University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Neha Kamran
- Department of Neurosurgery, The University of Michigan School of Medicine, Ann Arbor, Michigan. Department of Cell and Developmental Biology, The University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Pedro R Lowenstein
- Department of Neurosurgery, The University of Michigan School of Medicine, Ann Arbor, Michigan. Department of Cell and Developmental Biology, The University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Maria G Castro
- Department of Neurosurgery, The University of Michigan School of Medicine, Ann Arbor, Michigan. Department of Cell and Developmental Biology, The University of Michigan School of Medicine, Ann Arbor, Michigan.
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Castro MG, Candolfi M, Wilson TJ, Calinescu A, Paran C, Kamran N, Koschmann C, Moreno-Ayala MA, Assi H, Lowenstein PR. Adenoviral vector-mediated gene therapy for gliomas: coming of age. Expert Opin Biol Ther 2014; 14:1241-57. [PMID: 24773178 DOI: 10.1517/14712598.2014.915307] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Glioblastoma multiforme (GBM) is the most common primary brain tumor in adults and it carries a dismal prognosis. Adenoviral vector (Ad)-mediated gene transfer is being developed as a promising therapeutic strategy for GBM. Preclinical studies have demonstrated safety and efficacy of adenovirus administration into the brain and tumor mass in rodents and into the non-human primates' brain. Importantly, Ads have been safely administered within the tumor resection cavity in humans. AREAS COVERED This review gives background on GBM and Ads; we describe gene therapy strategies for GBM and discuss the value of combination approaches. Finally, we discuss the results of the human clinical trials for GBM that have used Ads. EXPERT OPINION The transduction characteristics of Ads, and their safety profile, added to their capacity to achieve high levels of transgene expression have made them powerful vectors for the treatment of GBM. Recent gene therapy successes in the treatment of retinal diseases and systemic brain metabolic diseases encourage the development of gene therapy for malignant glioma. Exciting clinical trials are currently recruiting patients; although, it is the large randomized Phase III controlled clinical trials that will provide the final decision on the success of gene therapy for the treatment of GBM.
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Affiliation(s)
- Maria G Castro
- University of Michigan Medical School, Department of Neurosurgery , 4570 MSRB II, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689 , USA +734 764 0850 ; +734 764 7051 ;
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25
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Castro MG, Candolfi M, Wilson TJ, Calinescu A, Paran C, Kamran N, Koschmann C, Moreno-Ayala MA, Assi H, Lowenstein PR. Adenoviral vector-mediated gene therapy for gliomas: coming of age. Expert Opin Biol Ther 2014. [PMID: 24773178 DOI: 10.1517/14712598.2014.91530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Glioblastoma multiforme (GBM) is the most common primary brain tumor in adults and it carries a dismal prognosis. Adenoviral vector (Ad)-mediated gene transfer is being developed as a promising therapeutic strategy for GBM. Preclinical studies have demonstrated safety and efficacy of adenovirus administration into the brain and tumor mass in rodents and into the non-human primates' brain. Importantly, Ads have been safely administered within the tumor resection cavity in humans. AREAS COVERED This review gives background on GBM and Ads; we describe gene therapy strategies for GBM and discuss the value of combination approaches. Finally, we discuss the results of the human clinical trials for GBM that have used Ads. EXPERT OPINION The transduction characteristics of Ads, and their safety profile, added to their capacity to achieve high levels of transgene expression have made them powerful vectors for the treatment of GBM. Recent gene therapy successes in the treatment of retinal diseases and systemic brain metabolic diseases encourage the development of gene therapy for malignant glioma. Exciting clinical trials are currently recruiting patients; although, it is the large randomized Phase III controlled clinical trials that will provide the final decision on the success of gene therapy for the treatment of GBM.
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Affiliation(s)
- Maria G Castro
- University of Michigan Medical School, Department of Neurosurgery , 4570 MSRB II, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689 , USA +734 764 0850 ; +734 764 7051 ;
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26
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Mineharu Y, Castro MG, Lowenstein PR, Sakai N, Miyamoto S. Dendritic cell-based immunotherapy for glioma: multiple regimens and implications in clinical trials. Neurol Med Chir (Tokyo) 2013; 53:741-54. [PMID: 24140772 PMCID: PMC3926207 DOI: 10.2176/nmc.ra2013-0234] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
High grade glioma is a highly invasive brain tumor and recurrence is almost inevitable, even after radical resection of the tumor mass. Cytotoxic immune responses and immunological memory induced by immunotherapy might prevent tumor recurrence. Dendritic cells (DCs) are professional antigen-presenting cells of the innate immune system with the potential to generate robust antigen-specific T cell immune responses. DC-based immunotherapeutic strategies have been intensively studied in both preclinical and clinical settings. Although advances have been made in the experimental use of DCs, there are still considerable challenges that need to be addressed for clinical translation. In this review, we describe the variability of regimens currently available for DC-based immunotherapy and then review strategies to optimize DC therapeutic efficacy against glioma.
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Affiliation(s)
- Yohei Mineharu
- Division of Neuroendovascular Therapy, Institute of Biomedical Research and Innovation
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27
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Puntel M, A K M GM, Farrokhi C, Vanderveen N, Paran C, Appelhans A, Kroeger KM, Salem A, Lacayo L, Pechnick RN, Kelson KR, Kaur S, Kennedy S, Palmer D, Ng P, Liu C, Krasinkiewicz J, Lowenstein PR, Castro MG. Safety profile, efficacy, and biodistribution of a bicistronic high-capacity adenovirus vector encoding a combined immunostimulation and cytotoxic gene therapy as a prelude to a phase I clinical trial for glioblastoma. Toxicol Appl Pharmacol 2013; 268:318-30. [PMID: 23403069 PMCID: PMC3641940 DOI: 10.1016/j.taap.2013.02.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Revised: 01/31/2013] [Accepted: 02/01/2013] [Indexed: 12/12/2022]
Abstract
Adenoviral vectors (Ads) are promising gene delivery vehicles due to their high transduction efficiency; however, their clinical usefulness has been hampered by their immunogenicity and the presence of anti-Ad immunity in humans. We reported the efficacy of a gene therapy approach for glioma consisting of intratumoral injection of Ads encoding conditionally cytotoxic herpes simplex type 1 thymidine kinase (Ad-TK) and the immunostimulatory cytokine fms-like tyrosine kinase ligand 3 (Ad-Flt3L). Herein, we report the biodistribution, efficacy, and neurological and systemic effects of a bicistronic high-capacity Ad, i.e., HC-Ad-TK/TetOn-Flt3L. HC-Ads elicit sustained transgene expression, even in the presence of anti-Ad immunity, and can encode large therapeutic cassettes, including regulatory elements to enable turning gene expression "on" or "off" according to clinical need. The inclusion of two therapeutic transgenes within a single vector enables a reduction of the total vector load without adversely impacting efficacy. Because clinically the vectors will be delivered into the surgical cavity, normal regions of the brain parenchyma are likely to be transduced. Thus, we assessed any potential toxicities elicited by escalating doses of HC-Ad-TK/TetOn-Flt3L (1×10(8), 1×10(9), or 1×10(10) viral particles [vp]) delivered into the rat brain parenchyma. We assessed neuropathology, biodistribution, transgene expression, systemic toxicity, and behavioral impact at acute and chronic time points. The results indicate that doses up to 1×10(9) vp of HC-Ad-TK/TetOn-Flt3L can be safely delivered into the normal rat brain and underpin further developments for its implementation in a phase I clinical trial for glioma.
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Affiliation(s)
- Mariana Puntel
- Department of Neurosurgery, The University of Michigan School of Medicine, MSRB II, RM 4570C, 1150 West Medical Center Drive, Ann Arbor, MI 48109-5689, USA
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