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Brook B, Duval V, Barman S, Speciner L, Sweitzer C, Khanmohammed A, Menon M, Foster K, Ghosh P, Abedi K, Koster J, Nanishi E, Baden LR, Levy O, VanCott T, Micol R, Dowling DJ. Adjuvantation of a SARS-CoV-2 mRNA vaccine with controlled tissue-specific expression of an mRNA encoding IL-12p70. Sci Transl Med 2024; 16:eadm8451. [PMID: 39047117 DOI: 10.1126/scitranslmed.adm8451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 03/18/2024] [Accepted: 06/24/2024] [Indexed: 07/27/2024]
Abstract
Messenger RNA (mRNA) vaccines were pivotal in reducing severe acute respiratory syndrome 2 (SARS-CoV-2) infection burden, yet they have not demonstrated robust durability, especially in older adults. Here, we describe a molecular adjuvant comprising a lipid nanoparticle (LNP)-encapsulated mRNA encoding interleukin-12p70 (IL-12p70). The bioactive adjuvant was engineered with a multiorgan protection (MOP) sequence to restrict transcript expression to the intramuscular injection site. Admixing IL-12-MOP (CTX-1796) with the BNT162b2 SARS-CoV-2 vaccine increased spike protein-specific immune responses in mice. Specifically, the benefits of IL-12-MOP adjuvantation included amplified humoral and cellular immunity and increased immune durability for 1 year after vaccination in mice. An additional benefit included the restoration of immunity in aged mice to amounts comparable to those achieved in young adult animals, alongside amplification with a single immunization. Associated enhanced dendritic cell and germinal center responses were observed. Together, these data demonstrate that an LNP-encapsulated IL-12-MOP mRNA-encoded adjuvant can amplify immunogenicity independent of age, demonstrating translational potential to benefit vulnerable populations.
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Affiliation(s)
- Byron Brook
- Precision Vaccines Program, Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Valerie Duval
- Combined Therapeutics Incorporated, Boston, MA 02135, USA
| | - Soumik Barman
- Precision Vaccines Program, Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | | | - Cali Sweitzer
- Precision Vaccines Program, Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
| | | | - Manisha Menon
- Precision Vaccines Program, Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
| | | | - Pallab Ghosh
- Combined Therapeutics Incorporated, Boston, MA 02135, USA
| | - Kimia Abedi
- Precision Vaccines Program, Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
| | - Jacob Koster
- Precision Vaccines Program, Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
| | - Etsuro Nanishi
- Precision Vaccines Program, Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Lindsey R Baden
- Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Ofer Levy
- Precision Vaccines Program, Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Thomas VanCott
- Combined Therapeutics Incorporated, Boston, MA 02135, USA
| | - Romain Micol
- Combined Therapeutics Incorporated, Boston, MA 02135, USA
| | - David J Dowling
- Precision Vaccines Program, Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
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Peña-Asensio J, Calvo-Sánchez H, Miquel J, Sanz-de-Villalobos E, González-Praetorius A, Torralba M, Larrubia JR. IL-15 boosts activated HBV core-specific CD8 + progenitor cells via metabolic rebalancing in persistent HBV infection. iScience 2024; 27:108666. [PMID: 38155778 PMCID: PMC10753074 DOI: 10.1016/j.isci.2023.108666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 10/15/2023] [Accepted: 12/05/2023] [Indexed: 12/30/2023] Open
Abstract
A rebalance between energy supply and demand in HBV-specific-CD8+ activated progenitor (AP) cells could restore the functionality of proliferative progeny (PP) in e-antigen(Ag)-negative chronic hepatitis B (CHBe(-)). We observed that quiescent progenitor (QP [TCF1+/FSClow]) HBVcore-specific-CD8+ cells displayed a memory-like phenotype. Following Ag-encounter, the generated AP [TCF1+/FSChigh] subset maintained the PD1+/CD127+ phenotype and gave rise to proliferative progeny (PP [ TCF1-/FSChigh]). In AP cells, IL-15 compared to IL2 decreased the initial mTORC1 boost, but maintained its activation longer linked to a catabolic profile that correlated with enhanced PP effector abilities. In nucleos(t)ide analogue (NUC)-treated CHBe(-), AP subset showed an anabolic phenotype associated with a dysfunctional PP pool. In CHBe(-) cases with low probability of HBVcore-specific-CD8+ cell on-NUC-treatment restoration, according to a clinical predictive model, IL-15/anti-PD-L1 treatment re-established their reactivity. Therefore, IL-15 could improve AP pool energy balance by decreasing intensity but extending T cell activation and by inducing a more catabolic metabolism.
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Affiliation(s)
- Julia Peña-Asensio
- Department of Biology of Systems, University of Alcalá, 28801 Alcalá de Henares, Madrid, Spain
- Instituto de Investigación Sanitaria de Castilla La-Mancha (IDISCAM), 45071 Toledo, Castilla La-Mancha, Spain
| | - Henar Calvo-Sánchez
- Section of Gastroenterology, Guadalajara University Hospital, 19002 Guadalajara, Castilla La-Mancha, Spain
- Department of Medicine & Medical Specialties, University of Alcalá, 28801 Alcalá de Henares, Madrid, Spain
- Instituto de Investigación Sanitaria de Castilla La-Mancha (IDISCAM), 45071 Toledo, Castilla La-Mancha, Spain
| | - Joaquín Miquel
- Section of Gastroenterology, Guadalajara University Hospital, 19002 Guadalajara, Castilla La-Mancha, Spain
- Instituto de Investigación Sanitaria de Castilla La-Mancha (IDISCAM), 45071 Toledo, Castilla La-Mancha, Spain
| | - Eduardo Sanz-de-Villalobos
- Section of Gastroenterology, Guadalajara University Hospital, 19002 Guadalajara, Castilla La-Mancha, Spain
- Instituto de Investigación Sanitaria de Castilla La-Mancha (IDISCAM), 45071 Toledo, Castilla La-Mancha, Spain
| | - Alejandro González-Praetorius
- Section of Microbiology, Guadalajara University Hospital, 19002 Guadalajara, Castilla La-Mancha, Spain
- Instituto de Investigación Sanitaria de Castilla La-Mancha (IDISCAM), 45071 Toledo, Castilla La-Mancha, Spain
| | - Miguel Torralba
- Service of Internal Medicine, Guadalajara University Hospital, 19002 Guadalajara, Castilla La-Mancha, Spain
- Department of Medicine & Medical Specialties, University of Alcalá, 28801 Alcalá de Henares, Madrid, Spain
- Instituto de Investigación Sanitaria de Castilla La-Mancha (IDISCAM), 45071 Toledo, Castilla La-Mancha, Spain
| | - Juan-Ramón Larrubia
- Section of Gastroenterology, Guadalajara University Hospital, 19002 Guadalajara, Castilla La-Mancha, Spain
- Department of Medicine & Medical Specialties, University of Alcalá, 28801 Alcalá de Henares, Madrid, Spain
- Instituto de Investigación Sanitaria de Castilla La-Mancha (IDISCAM), 45071 Toledo, Castilla La-Mancha, Spain
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Patidar M, Yadav N, Dalai SK. Development of Stable Chimeric IL-15 for Trans-Presentation by the Antigen Presenting Cells. Front Immunol 2021; 12:646159. [PMID: 33953717 PMCID: PMC8092395 DOI: 10.3389/fimmu.2021.646159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 03/15/2021] [Indexed: 11/23/2022] Open
Abstract
IL-15 is one of the important biologics considered for vaccine adjuvant and treatment of cancer. However, a short half-life and poor bioavailability limit its therapeutic potential. Herein, we have structured IL-15 into a chimeric protein to improve its half-life enabling greater bioavailability for longer periods. We have covalently linked IL-15 with IgG2 base to make the IL-15 a stable chimeric protein, which also increased its serum half-life by 40 fold. The dimeric structure of this kind of IgG based biologics has greater stability, resistance to proteolytic cleavage, and less frequent dosing schedule with minimum dosage for achieving the desired response compared to that of their monomeric forms. The structured chimeric IL-15 naturally forms a dimer, and retains its affinity for binding to its receptor, IL-15Rβ. Moreover, with the focused action of the structured chimeric IL-15, antigen-presenting cells (APC) would transpresent chimeric IL-15 along with antigen to the T cell, that will help the generation of quantitatively and qualitatively better antigen-specific memory T cells. In vitro and in vivo studies demonstrate the biological activity of chimeric IL-15 with respect to its ability to induce IL-15 signaling and modulating CD8+ T cell response in favor of memory generation. Thus, a longer half-life, dimeric nature, and anticipated focused transpresentation by APCs to the T cells will make chimeric IL-15 a super-agonist for memory CD8+ T cell responses.
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Affiliation(s)
- Manoj Patidar
- Institute of Science, Nirma University, Ahmedabad, India.,Department of Zoology, Govt. College Manawar, Dhar, India
| | - Naveen Yadav
- Institute of Science, Nirma University, Ahmedabad, India.,Translation Health Science and Technology Institute, NCR-Biotech Science Cluster, Faridabad, India
| | - Sarat K Dalai
- Institute of Science, Nirma University, Ahmedabad, India
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Rezaei T, Khalili S, Baradaran B, Mosafer J, Rezaei S, Mokhtarzadeh A, de la Guardia M. Recent advances on HIV DNA vaccines development: Stepwise improvements to clinical trials. J Control Release 2019; 316:116-137. [PMID: 31669566 DOI: 10.1016/j.jconrel.2019.10.045] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 10/22/2019] [Accepted: 10/23/2019] [Indexed: 01/10/2023]
Abstract
According to WHO (World Health Organization) reports, more than 770,000 people died from HIV and almost 1.7 million people becoming newly infected in the worldwide in 2018. Therefore, many attempts should be done to produce a forceful vaccine to control the AIDS. DNA-based vaccines have been investigated for HIV vaccination by researches during the recent 20 years. The DNA vaccines are novel approach for induction of both type of immune responses (cellular and humoral) in the host cells and have many advantages including high stability, fast and easy of fabrication and absence of severe side effects when compared with other vaccination methods. Recent studies have been focused on vaccine design, immune responses and on the use of adjuvants as a promising strategy for increased level of responses, delivery approaches by viral and non-viral methods and vector design for different antigens of HIV virus. In this review, we outlined the aforementioned advances on HIV DNA vaccines. Then we described the future trends in clinical trials as a strong strategy even in healthy volunteers and the potential developments in control and prevention of HIV.
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Affiliation(s)
- Tayebeh Rezaei
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Biotechnology, Higher Education Institute of Rab-Rashid, Tabriz, Iran
| | - Saeed Khalili
- Department of Biology Sciences, Faculty of Sciences, Shahid Rajee Teacher Training University, Tehran, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jafar Mosafer
- Research Center of Advanced Technologies in Medicine, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
| | - Sarah Rezaei
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Biotechnology, Higher Education Institute of Rab-Rashid, Tabriz, Iran.
| | - Miguel de la Guardia
- Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100, Burjassot, Valencia, Spain.
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Climent N, García I, Marradi M, Chiodo F, Miralles L, Maleno MJ, Gatell JM, García F, Penadés S, Plana M. Loading dendritic cells with gold nanoparticles (GNPs) bearing HIV-peptides and mannosides enhance HIV-specific T cell responses. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 14:339-351. [PMID: 29157976 DOI: 10.1016/j.nano.2017.11.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 10/05/2017] [Accepted: 11/03/2017] [Indexed: 01/10/2023]
Abstract
Gold nanoparticles (GNPs) decorated with glycans ameliorate dendritic cells (DC) uptake, antigen-presentation and T-cells cross-talk, which are important aspects in vaccine design. GNPs allow for high antigen loading, DC targeting, lack of toxicity and are straightforward prepared and easy to handle. The present study aimed to assess the capacity of DC to process and present HIV-1-peptides loaded onto GNPs bearing high-mannoside-type oligosaccharides (P1@HM) to autologous T-cells from HIV-1 patients. The results showed that P1@HM increased HIV-specific CD4+ and CD8+ T-cell proliferation and induced highly functional cytokine secretion compared with HIV-peptides alone. P1@HM elicits a highly efficient secretion of pro-TH1 cytokines and chemokines, a moderate production of pro-TH2 and significant higher secretion of pro-inflammatory cytokines such as TNF-α and IL-1β. Thus, co-delivery of HIV-1 antigens and HM by GNPs is an excellent vaccine delivery system inducing HIV-specific cellular immune responses in HIV+ patients, being a promising approach to improve anti-HIV-1 vaccines.
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Affiliation(s)
- Núria Climent
- AIDS Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), HIV Vaccine Development in Catalonia (HIVACAT), Hospital Clínic de Barcelona, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Isabel García
- Biomedical Research Networking Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Paseo Miramón 182, Donostia-San Sebastián, Spain; CIC biomaGUNE, Paseo de Miramón 182, Donostia-San Sebastián, Spain
| | - Marco Marradi
- Biomedical Research Networking Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Paseo Miramón 182, Donostia-San Sebastián, Spain; CIC biomaGUNE, Paseo de Miramón 182, Donostia-San Sebastián, Spain
| | - Fabrizio Chiodo
- CIC biomaGUNE, Paseo de Miramón 182, Donostia-San Sebastián, Spain; Bio-organic Synthesis, Leiden Institute of Chemistry, Leiden University, The Netherland
| | - Laia Miralles
- AIDS Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), HIV Vaccine Development in Catalonia (HIVACAT), Hospital Clínic de Barcelona, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - María José Maleno
- AIDS Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), HIV Vaccine Development in Catalonia (HIVACAT), Hospital Clínic de Barcelona, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - José María Gatell
- AIDS Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), HIV Vaccine Development in Catalonia (HIVACAT), Hospital Clínic de Barcelona, Faculty of Medicine, University of Barcelona, Barcelona, Spain; Service of Infectious Diseases & AIDS Unit, Hospital Clínic de Barcelona, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Felipe García
- AIDS Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), HIV Vaccine Development in Catalonia (HIVACAT), Hospital Clínic de Barcelona, Faculty of Medicine, University of Barcelona, Barcelona, Spain; Service of Infectious Diseases & AIDS Unit, Hospital Clínic de Barcelona, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Soledad Penadés
- Biomedical Research Networking Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Paseo Miramón 182, Donostia-San Sebastián, Spain; CIC biomaGUNE, Paseo de Miramón 182, Donostia-San Sebastián, Spain
| | - Montserrat Plana
- AIDS Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), HIV Vaccine Development in Catalonia (HIVACAT), Hospital Clínic de Barcelona, Faculty of Medicine, University of Barcelona, Barcelona, Spain.
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Li KP, Shanmuganad S, Carroll K, Katz JD, Jordan MB, Hildeman DA. Dying to protect: cell death and the control of T-cell homeostasis. Immunol Rev 2017; 277:21-43. [PMID: 28462527 PMCID: PMC5416827 DOI: 10.1111/imr.12538] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 02/23/2017] [Accepted: 02/26/2017] [Indexed: 02/07/2023]
Abstract
T cells play a critical role in immune responses as they specifically recognize peptide/MHC complexes with their T-cell receptors and initiate adaptive immune responses. While T cells are critical for performing appropriate effector functions and maintaining immune memory, they also can cause autoimmunity or neoplasia if misdirected or dysregulated. Thus, T cells must be tightly regulated from their development onward. Maintenance of appropriate T-cell homeostasis is essential to promote protective immunity and limit autoimmunity and neoplasia. This review will focus on the role of cell death in maintenance of T-cell homeostasis and outline novel therapeutic strategies tailored to manipulate cell death to limit T-cell survival (eg, autoimmunity and transplantation) or enhance T-cell survival (eg, vaccination and immune deficiency).
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Affiliation(s)
- Kun-Po Li
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Sharmila Shanmuganad
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Kaitlin Carroll
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Jonathan D. Katz
- Division of Immunobiology, Cincinnati, OH 45229, USA
- Division of Endocrinology, Diabetes Research Center, Cincinnati, OH 45229, USA
| | - Michael B. Jordan
- Division of Immunobiology, Cincinnati, OH 45229, USA
- Division of Bone Marrow Transplantation and Immune Deficiency, Department of Pediatrics, Cincinnati Children’s Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
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Previously Unidentified Single Nucleotide Polymorphisms in HIV/AIDS Cases Associate with Clinical Parameters and Disease Progression. BIOMED RESEARCH INTERNATIONAL 2016; 2016:2742648. [PMID: 28050553 PMCID: PMC5165134 DOI: 10.1155/2016/2742648] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 11/08/2016] [Indexed: 12/20/2022]
Abstract
The genetic background of an individual plays an important role in the progression of HIV infection to AIDS. Identifying previously unknown or uncharacterized single nucleotide polymorphisms (SNPs) that associate with disease progression may reveal important therapeutic targets and provide a greater understanding of disease pathogenesis. In the present study, we employed ultra-high multiplex PCR on an Ion Torrent next-generation sequencing platform to sequence 23 innate immune genes from 94 individuals with HIV/AIDS. This data was used to identify potential associations of SNPs with clinical parameters and disease progression. SNPs that associated with an increased viral load were identified in the genes for the interleukin 15 receptor (IL15RA), toll-like receptor 7 (TLR7), tripartite motif-containing protein 5 (TRIM5), and two killer-cell immunoglobulin-like receptors (KIR2DL1 and KIR2DL3). Additionally, SNPs that associated with progression from HIV infection to AIDS were identified in two 2'-5'-oligoadenylate synthetase genes (OAS2 and OAS3). In contrast, other SNPs identified in OAS2 and OAS3 genes, as well as in the TRIM5 and KIR2DS4 genes, were associated with a slower progression of disease. Taken together, our data demonstrates the utility of ultra-high multiplex PCR in identifying polymorphisms of potential clinical significance and further,identifies SNPs that may play a role in HIV pathogenesis.
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Patidar M, Yadav N, Dalai SK. Interleukin 15: A key cytokine for immunotherapy. Cytokine Growth Factor Rev 2016; 31:49-59. [PMID: 27325459 DOI: 10.1016/j.cytogfr.2016.06.001] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 05/20/2016] [Accepted: 06/03/2016] [Indexed: 12/20/2022]
Abstract
Interleukin (IL)-15, a member of the immunoregulatory cytokines family, is a pluripotent molecule with therapeutic potential. It is predominantly expressed by the myeloid cells, as well as other cell types. IL-15 serves multiple functions including dictating T cell response, regulating tissue repair and B cell homing, modulating inflammation, and activating NK cells. Among cytokines, IL-15 is unique because of its wide expression, tightly regulated secretion, trans-presentation, and therapeutic potential. IL-15 has been investigated for its therapeutic potential for the induction and maintenance of T cell responses. In addition, IL-15 can be targeted by antibody- or mutant IL-15 therapy to reduce inflammation. Its multifaceted biological applications are crucial in immunotherapy. In this article, we review the functions, expression, and regulation of IL-15 for designing an improved IL-15-based therapy targeting the IL-15 signaling pathway.
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Affiliation(s)
- Manoj Patidar
- Institute of Science, Nirma University, Ahmedabad 382481, India.
| | - Naveen Yadav
- Institute of Science, Nirma University, Ahmedabad 382481, India.
| | - Sarat K Dalai
- Institute of Science, Nirma University, Ahmedabad 382481, India.
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Naval-Macabuhay I, Casanova V, Navarro G, García F, León A, Miralles L, Rovira C, Martinez-Navio JM, Gallart T, Mallol J, Gatell JM, Lluís C, Franco R, McCormick PJ, Climent N. Adenosine deaminase regulates Treg expression in autologous T cell-dendritic cell cocultures from patients infected with HIV-1. J Leukoc Biol 2015; 99:349-59. [PMID: 26310829 DOI: 10.1189/jlb.3a1214-580rr] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 08/15/2015] [Indexed: 12/26/2022] Open
Abstract
Regulatory T cells have an important role in immune suppression during HIV-1 infection. As regulatory T cells produce the immunomodulatory molecule adenosine, our aim here was to assess the potential of adenosine removal to revert the suppression of anti-HIV responses exerted by regulatory T cells. The experimental setup consisted of ex vivo cocultures of T and dendritic cells, to which adenosine deaminase, an enzyme that hydrolyzes adenosine, was added. In cells from healthy individuals, adenosine hydrolysis decreased CD4(+)CD25(hi) regulatory T cells. Addition of 5'-N-ethylcarboxamidoadenosine, an adenosine receptor agonist, significantly decreased CD4(+)CD25(lo) cells, confirming a modulatory role of adenosine acting via adenosine receptors. In autologous cocultures of T cells with HIV-1-pulsed dendritic cells, addition of adenosine deaminase led to a significant decrease of HIV-1-induced CD4(+)CD25(hi) forkhead box p3(+) cells and to a significant enhancement of the HIV-1-specific CD4(+) responder T cells. An increase in the effector response was confirmed by the enhanced production of CD4(+) and CD8(+) CD25(-)CD45RO(+) memory cell generation and secretion of Th1 cytokines, including IFN-γ and IL-15 and chemokines MIP-1α/CCL3, MIP-1β/CCL4, and RANTES/CCL5. These ex vivo results show, in a physiologically relevant model, that adenosine deaminase is able to enhance HIV-1 effector responses markedly. The possibility to revert regulatory T cell-mediated inhibition of immune responses by use of adenosine deaminase, an enzyme that hydrolyzes adenosine, merits attention for restoring T lymphocyte function in HIV-1 infection.
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Affiliation(s)
- Isaac Naval-Macabuhay
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
| | - Víctor Casanova
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
| | - Gemma Navarro
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
| | - Felipe García
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
| | - Agathe León
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
| | - Laia Miralles
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
| | - Cristina Rovira
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
| | - José M Martinez-Navio
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
| | - Teresa Gallart
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
| | - Josefa Mallol
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
| | - José M Gatell
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
| | - Carme Lluís
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
| | - Rafael Franco
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
| | - Peter J McCormick
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
| | - Núria Climent
- *Department of Biochemistry and Molecular Biology, Faculty of Biology, and Institute of Biomedicine of the University of Barcelona, University of Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer-AIDS Research Group and Catalonian Center for HIV Vaccines, Barcelona, Spain; Infectious Diseases and AIDS Unit and Service of Immunology, Hospital Clínic de Barcelona, Spain; and School of Pharmacy, University of East Anglia, Norwich, Norfolk, United Kingdom
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11
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García-Arriaza J, Esteban M. Enhancing poxvirus vectors vaccine immunogenicity. Hum Vaccin Immunother 2015; 10:2235-44. [PMID: 25424927 DOI: 10.4161/hv.28974] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Attenuated recombinant poxvirus vectors expressing heterologous antigens from pathogens are currently at various stages in clinical trials with the aim to establish their efficacy. This is because these vectors have shown excellent safety profiles, significant immunogenicity against foreign expressed antigens and are able to induce protective immune responses. In view of the limited efficacy triggered by some poxvirus strains used in clinical trials (i.e, ALVAC in the RV144 phase III clinical trial for HIV), and of the restrictive replication capacity of the highly attenuated vectors like MVA and NYVAC, there is a consensus that further improvements of these vectors should be pursuit. In this review we considered several strategies that are currently being implemented, as well as new approaches, to improve the immunogenicity of the poxvirus vectors. This includes heterologous prime/boost protocols, use of co-stimulatory molecules, deletion of viral immunomodulatory genes still present in the poxvirus genome, enhancing virus promoter strength, enhancing vector replication capacity, optimizing expression of foreign heterologous sequences, and the combined use of adjuvants. An optimized poxvirus vector triggering long-lasting immunity with a high protective efficacy against a selective disease should be sought.
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Affiliation(s)
- Juan García-Arriaza
- a Department of Molecular and Cellular Biology; Centro Nacional de Biotecnología; Consejo Superior de Investigaciones Científicas (CSIC); Madrid, Spain
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12
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Croce M, Orengo AM, Azzarone B, Ferrini S. Immunotherapeutic applications of IL-15. Immunotherapy 2013; 4:957-69. [PMID: 23046239 DOI: 10.2217/imt.12.92] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
IL-15 is a member of the IL-2 family of cytokines, which play a fundamental role in innate and adaptive immune responses. IL-15 has pleiotropic immune-enhancing activities, as it stimulates NK, T and NKT cell proliferation, survival and effector functions. In view of these properties, IL-15 is regarded as a good candidate for cancer immunotherapy. This possibility is reinforced by its low toxicity and efficacy in preclinical tumor models. The use of IL-15 to boost the immune response in HIV infection has also been proposed, although further studies are required to establish potential risks and benefits. Clinical trials of IL-15 have been initiated in cancer patients and in HIV vaccination and will elucidate the potential of IL-15-based immunotherapy. The purpose of this review is to provide an update on the potential applications of IL-15 in cancer immunotherapy and HIV infection.
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Affiliation(s)
- Michela Croce
- IRCCS-AOU San-Martino-IST Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy
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13
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The development of gene-based vectors for immunization. Vaccines (Basel) 2013. [PMCID: PMC7151937 DOI: 10.1016/b978-1-4557-0090-5.00064-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Vanham G, Van Gulck E. Can immunotherapy be useful as a "functional cure" for infection with Human Immunodeficiency Virus-1? Retrovirology 2012; 9:72. [PMID: 22958464 PMCID: PMC3472319 DOI: 10.1186/1742-4690-9-72] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Accepted: 08/07/2012] [Indexed: 11/30/2022] Open
Abstract
Immunotherapy aims to assist the natural immune system in achieving control over viral infection. Various immunotherapy formats have been evaluated in either therapy-naive or therapy-experienced HIV-infected patients over the last 20 years. These formats included non-antigen specific strategies such as cytokines that stimulate immunity or suppress the viral replication, as well as antibodies that block negative regulatory pathways. A number of HIV-specific therapeutic vaccinations have also been proposed, using in vivo injection of inactivated virus, plasmid DNA encoding HIV antigens, or recombinant viral vectors containing HIV genes. A specific format of therapeutic vaccines consists of ex vivo loading of autologous dendritic cells with one of the above mentioned antigenic formats or mRNA encoding HIV antigens.This review provides an extensive overview of the background and rationale of these different therapeutic attempts and discusses the results of trials in the SIV macaque model and in patients. To date success has been limited, which could be explained by insufficient quality or strength of the induced immune responses, incomplete coverage of HIV variability and/or inappropriate immune activation, with ensuing increased susceptibility of target cells.Future attempts at therapeutic vaccination should ideally be performed under the protection of highly active antiretroviral drugs in patients with a recovered immune system. Risks for immune escape should be limited by a better coverage of the HIV variability, using either conserved or mosaic sequences. Appropriate molecular adjuvants should be included to enhance the quality and strength of the responses, without inducing inappropriate immune activation. Finally, to achieve a long-lasting effect on viral control (i.e. a "functional cure") it is likely that these immune interventions should be combined with anti-latency drugs and/or gene therapy.
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Affiliation(s)
- Guido Vanham
- Virology Unit, Department of Biomedical Sciences, Institute of Tropical Medicine of Antwerp, Nationalestraat 155, B-2000, Antwerpen, Belgium
- Department of Biomedical Sciences, University of Antwerpen, Antwerpen, Belgium
| | - Ellen Van Gulck
- Virology Unit, Department of Biomedical Sciences, Institute of Tropical Medicine of Antwerp, Nationalestraat 155, B-2000, Antwerpen, Belgium
- Present address: Community of Research Excellence and Advanced Technology (C.R.E.A.Te), Division of Janssen, Beerse, Belgium
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15
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Tarkowski M, Ferraris L, Martone S, Strambio de Castillia F, Misciagna D, Mazzucchelli RI, Lattuada E, Paraninfo G, Galli M, Riva, for the ELVIS Study Group A. Expression of interleukin-15 and interleukin-15Rα in monocytes of HIV type 1-infected patients with different courses of disease progression. AIDS Res Hum Retroviruses 2012; 28:693-701. [PMID: 21902580 DOI: 10.1089/aid.2010.0317] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Interleukin-15 (IL-15) enhances the effector mechanisms of anti-HIV immune responses and thus is considered a potential adjuvant of HIV-1 vaccine. However, there are a lack of data concerning the relationships between IL-15 expression and regulation in HIV-1-infected patients and the course of disease progression. We found that IL-15, but not IL-15Rα, is expressed at significantly higher levels in the CD14(+) monocytes [stimulated or not with interferon (IFN)-γ] of long-term nonprogressors (LTNP) than in those of HIV-1 progressors or healthy controls. There was no between-group difference in the amounts of soluble IL-15 released from the cells. We also found that like the healthy controls, the LTNP expressed the IL-15 and IL-15Rα genes in a more coordinated manner than the progressors. Our findings show that there are significant differences in IL-15 expression between patients with different courses of HIV infection, and that the coordinated expression of the IL-15 and IL-15Rα genes is dysregulated in patients with progressive disease. They also provide important information concerning the mechanisms of infection and the potential use of IL-15 as a therapeutic agent.
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Affiliation(s)
- Maciej Tarkowski
- Department of Clinical Sciences, Section of Infectious Diseases and Tropical Medicine, University of Milan, Milan, Italy
| | - Laurenzia Ferraris
- Department of Clinical Sciences, Section of Infectious Diseases and Tropical Medicine, University of Milan, Milan, Italy
| | - Sara Martone
- Department of Clinical Sciences, Section of Infectious Diseases and Tropical Medicine, University of Milan, Milan, Italy
| | | | - Donatella Misciagna
- Department of Clinical Sciences, Section of Infectious Diseases and Tropical Medicine, University of Milan, Milan, Italy
| | - Renata I. Mazzucchelli
- Laboratory of Gene Therapy and Primary Immunodeficiency, San Raffaele Telethon Institute for Gene Therapy, Milan, Italy
| | - Emanuela Lattuada
- Department of Medical Pathology, Clinic of Infectious Diseases, Policlinico Borgo Roma, Verona, Italy
| | - Giuseppe Paraninfo
- Tropical and Infectious Diseases Clinic, A.O. Spedali Civili di Brescia, Brescia, Italy
| | - Massimo Galli
- Department of Clinical Sciences, Section of Infectious Diseases and Tropical Medicine, University of Milan, Milan, Italy
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16
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Goulding J, Tahiliani V, Salek-Ardakani S. OX40:OX40L axis: emerging targets for improving poxvirus-based CD8(+) T-cell vaccines against respiratory viruses. Immunol Rev 2012; 244:149-68. [PMID: 22017437 PMCID: PMC3422077 DOI: 10.1111/j.1600-065x.2011.01062.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The human respiratory tract is an entry point for over 200 known viruses that collectively contribute to millions of annual deaths worldwide. Consequently, the World Health Organization has designated respiratory viral infections as a priority for vaccine development. Despite enormous advances in understanding the attributes of a protective mucosal antiviral immune response, current vaccines continue to fail in effectively generating long-lived protective CD8(+) T-cell immunity. To date, the majority of licensed human vaccines afford protection against infectious pathogens through the generation of specific immunoglobulin responses. In recent years, the selective manipulation of specific costimulatory pathways, which are critical in regulating T cell-mediated immune responses, has generated increasing interest. Impressive results in animal models have shown that the tumor necrosis factor receptor (TNFR) family member OX40 (CD134) and its binding partner OX40L (CD252) are key costimulatory molecules involved in the generation of protective CD8(+) T-cell responses at mucosal surfaces, such as the lung. In this review, we highlight these new findings with a particular emphasis on their potential as immunological adjuvants to enhance poxvirus-based CD8(+) T-cell vaccines.
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Affiliation(s)
- John Goulding
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, San Diego, CA, USA
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Abstract
Despite many years of research, human DNA vaccines have yet to fulfill their early promise. Over the past 15 years, multiple generations of DNA vaccines have been developed and tested in preclinical models for prophylactic and therapeutic applications in the areas of infectious disease and cancer, but have failed in the clinic. Thus, while DNA vaccines have achieved successful licensure for veterinary applications, their poor immunogenicity in humans when compared with traditional protein-based vaccines has hindered their progress. Many strategies have been attempted to improve DNA vaccine potency including use of more efficient promoters and codon optimization, addition of traditional or genetic adjuvants, electroporation, intradermal delivery and various prime-boost strategies. This review summarizes these advances in DNA vaccine technologies and attempts to answer the question of when DNA vaccines might eventually be licensed for human use.
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Affiliation(s)
- Fadi Saade
- Vaxine Pty Ltd, Bedford Park, Adelaide 5042, Australia
| | - Nikolai Petrovsky
- Vaxine Pty Ltd, Bedford Park, Adelaide 5042, Australia
- Department of Diabetes and Endocrinology, Flinders Medical Centre/Flinders University, Adelaide 5042, Australia
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Hutnick NA, Myles DJF, Bian CB, Muthumani K, Weiner DB. Selected approaches for increasing HIV DNA vaccine immunogenicity in vivo. Curr Opin Virol 2011; 1:233-40. [PMID: 22440782 DOI: 10.1016/j.coviro.2011.08.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Revised: 08/09/2011] [Accepted: 08/09/2011] [Indexed: 01/18/2023]
Abstract
The safety, stability, and ability for repeat homologous vaccination makes the DNA vaccine platform an excellent candidate for an effective HIV-1 vaccine. However, the immunogenicity of early DNA vaccines did not translate from small animal models into larger non-human primates and was markedly lower than viral vectors. In addition to improvements to the DNA vector itself, delivery with electroporation, the inclusion of molecular adjuvants, and heterologous prime-boost strategies have dramatically improved the immunogenicity of DNA vaccines for HIV and currently makes them a leading platform with many areas warranting further research and clinical development.
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Affiliation(s)
- Natalie A Hutnick
- Department of Pathology and Laboratory Medicine, Perlman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States
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