Abstract
Background: Tuberculosis (TB) is threatening disease in China and new therapeutic agents and regimens to treat TB are urgently needed.
Objective: In this study, a DNA vaccine expressing Mycobacterium tuberculosis (MTB) Rv1419 antigen was constructed and its immunogenicity and therapeutic effects were evaluated. Method: Normal mice and TB model mice were immunized intramuscularly three times at two-week intervals with saline, plasmid vector pVAX1, M. vaccae vaccine, pVAX1- ag85a (rv3804c) DNA or pVAX1-rv1419 DNA, respectively. Results: At three weeks after the last immunization, flow cytometry showed a higher proportion of CD4+ T cells expressing IFN-γ (Th1) in response to Rv1419 protein in blood from the pVAX1- rv1419 DNA group compared with the saline and vector groups (P<0.05), suggesting a predominant Th1 immune response. Live bacterial loads in lungs and spleens were lower by 0.41 log10 in the pVAX1- rv1419 DNA group than in the saline controls. In addition, pathological changes in the lungs of the DNA vaccinated groups were less. These results suggest that pVAX1- rv1419 DNA could be effective for the treatment of TB, significantly increasing the Th1-type cellular immune response, and inhibiting the growth of MTB. Conclusion: Therefore pVAX1- rv1419 DNA is a candidate for inclusion in a therapeutic combination DNA vaccine against TB.Keywords: DNA vaccine, pVAX1-rv1419 DNA, Immunotherapy, Mycobacterium tuberculosis, Rv1419 protein, Immunization.
Current Gene Therapy
Title:Immunogenicity and Therapeutic Effects of pVAX1-rv1419 DNA from Mycobacterium tuberculosis
Volume: 16 Issue: 4
Author(s): Yan Liang, Xiaoyan Zhang, Li Xiao, Xuejuan Bai, Xiaomei Wang, Yourong Yang, Junxian Zhang, Jinying Song, Yinping Liu, Ning Li and Xueqiong Wu
Affiliation:
Keywords: DNA vaccine, pVAX1-rv1419 DNA, Immunotherapy, Mycobacterium tuberculosis, Rv1419 protein, Immunization.
Abstract: Background: Tuberculosis (TB) is threatening disease in China and new therapeutic agents and regimens to treat TB are urgently needed.
Objective: In this study, a DNA vaccine expressing Mycobacterium tuberculosis (MTB) Rv1419 antigen was constructed and its immunogenicity and therapeutic effects were evaluated. Method: Normal mice and TB model mice were immunized intramuscularly three times at two-week intervals with saline, plasmid vector pVAX1, M. vaccae vaccine, pVAX1- ag85a (rv3804c) DNA or pVAX1-rv1419 DNA, respectively. Results: At three weeks after the last immunization, flow cytometry showed a higher proportion of CD4+ T cells expressing IFN-γ (Th1) in response to Rv1419 protein in blood from the pVAX1- rv1419 DNA group compared with the saline and vector groups (P<0.05), suggesting a predominant Th1 immune response. Live bacterial loads in lungs and spleens were lower by 0.41 log10 in the pVAX1- rv1419 DNA group than in the saline controls. In addition, pathological changes in the lungs of the DNA vaccinated groups were less. These results suggest that pVAX1- rv1419 DNA could be effective for the treatment of TB, significantly increasing the Th1-type cellular immune response, and inhibiting the growth of MTB. Conclusion: Therefore pVAX1- rv1419 DNA is a candidate for inclusion in a therapeutic combination DNA vaccine against TB.Export Options
About this article
Cite this article as:
Liang Yan, Zhang Xiaoyan, Xiao Li, Bai Xuejuan, Wang Xiaomei, Yang Yourong, Zhang Junxian, Song Jinying, Liu Yinping, Li Ning and Wu Xueqiong, Immunogenicity and Therapeutic Effects of pVAX1-rv1419 DNA from Mycobacterium tuberculosis, Current Gene Therapy 2016; 16 (4) . https://dx.doi.org/10.2174/1566523216666161102170123
DOI https://dx.doi.org/10.2174/1566523216666161102170123 |
Print ISSN 1566-5232 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5631 |
Call for Papers in Thematic Issues
Programmed Cell Death Genes in Oncology: Pioneering Therapeutic and Diagnostic Frontiers (BMS-CGT-2024-HT-45)
Programmed Cell Death (PCD) is recognized as a pivotal biological mechanism with far-reaching effects in the realm of cancer therapy. This complex process encompasses a variety of cell death modalities, including apoptosis, autophagic cell death, pyroptosis, and ferroptosis, each of which contributes to the intricate landscape of cancer development and ...read more
Related Journals
- Author Guidelines
- Graphical Abstracts
- Fabricating and Stating False Information
- Research Misconduct
- Post Publication Discussions and Corrections
- Publishing Ethics and Rectitude
- Increase Visibility of Your Article
- Archiving Policies
- Peer Review Workflow
- Order Your Article Before Print
- Promote Your Article
- Manuscript Transfer Facility
- Editorial Policies
- Allegations from Whistleblowers
- Announcements
Related Articles
-
Exploring Novel Target Space: A Need to Partner High Throughput Docking and Ligand-Based Similarity Searches?
Combinatorial Chemistry & High Throughput Screening Machine Learning and Tubercular Drug Target Recognition
Current Pharmaceutical Design Systems Medicine Approaches to Improving Understanding, Treatment, and Clinical Management of Neuroendocrine Prostate Cancer
Current Pharmaceutical Design Multiple Sclerosis and Neuroinflammation: The Overview of Current and Prospective Therapies
Current Pharmaceutical Design A Perspective on Clinical Islet Transplantation: Past, Present and Developments for Future
Immunology, Endocrine & Metabolic Agents in Medicinal Chemistry (Discontinued) Editorial [Hot topic: QSAR and Complex Networks in Pharmaceutical Design, Microbiology, Parasitology, Toxicology, Cancer and Neurosciences (Executive Editor: Humberto Gonzalez-Diaz)]
Current Pharmaceutical Design Correlates of Immune Protection from Tuberculosis
Current Molecular Medicine Inhalation Delivery of Host Defense Peptides (HDP) using Nano- Formulation Strategies: A Pragmatic Approach for Therapy of Pulmonary Ailments
Current Protein & Peptide Science Vitamin D Supplementation in Diabetic Foot Ulcers: A Current Perspective
Current Diabetes Reviews Patent Selections
Recent Patents on Anti-Infective Drug Discovery Predictive and Prognostic Value of Ascitic Fluid Mannose Binding Lectin in Patients with Spontaneous Bacterial Peritonitis
Anti-Inflammatory & Anti-Allergy Agents in Medicinal Chemistry 4,6-diaryl Pyrimidones as Constrained Chalcone Analogues: Design, Synthesis and Evaluation as Antiproliferative Agents
Anti-Cancer Agents in Medicinal Chemistry Bone Marrow Aspiration/Biopsy in the Evaluation of Fever of Unknown Origin in Patients with AIDS
Infectious Disorders - Drug Targets Increase of R-/S-Methadone Enantiomer Concentration Ratio in Serum of Patients Treated with Either Nevirapine or Efavirenz
Drug Metabolism Letters Emerging Advances in Nanomedicine as a Nanoscale Pharmacotherapy in Rheumatoid Arthritis: State of the Art
Current Topics in Medicinal Chemistry Burden of Bronchiectasis in Indigenous Peoples - How Can it be Improved?
Current Pediatric Reviews Review of Current Chemoinformatic Tools for Modeling Important Aspects of CYPsmediated Drug Metabolism. Integrating Metabolism Data with Other Biological Profiles to Enhance Drug Discovery
Current Drug Metabolism miR-15b and miR-21 as Circulating Biomarkers for Diagnosis of Glioma
Current Genomics Reactive Oxygen Species in the Initiation of IL-4 Driven Autoimmunity as a Potential Therapeutic Target
Current Pharmaceutical Design The Use of Biologics for Psoriasis in Asia-Pacific Region
Current Rheumatology Reviews