1
|
Xu MN, Zhong MZ, Feng SN, Xu YQ, Peng XM, Zeng K, Huang XW. Production of recombinant HPV11/16 E6/E7-MBP-His 6 fusion proteins and their potential to induce cytokine secretion by immune cells in peripheral blood. Virol J 2024; 21:10. [PMID: 38183109 PMCID: PMC10768090 DOI: 10.1186/s12985-023-02281-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 12/28/2023] [Indexed: 01/07/2024] Open
Abstract
Human papillomavirus (HPV) infection poses a significant threat to public health worldwide. Targeting the function of HPV E6 and E7 proteins and activating the host immune response against these proteins represent promising therapeutic strategies for combating HPV-related diseases. Consequently, the efficient production of soluble, high-purity E6 and E7 proteins is crucial for function and host immune response studies. In this context, we selected the pMCSG19 protein expression vector for Escherichia coli to produce soluble MBP-His6 tagged HPV11/16 E6/E7 proteins, achieving relatively high purity and yield. Notably, these proteins exhibited low toxicity to peripheral blood mononuclear cells (PBMCs) and did not compromise their viability. Additionally, the recombinant proteins were capable of inducing the secretion of multiple cytokines by immune cells in peripheral blood, indicating their potential to elicit immune responses. In conclusion, our study offers a novel approach for the production of HPV11/16 E6/E7 fusion proteins with relatively high purity and yield. The fusing HPV11/16 E6/E7 proteins to MBP-His6 tag may serve as a valuable method for large-scale protein production in future research endeavors.
Collapse
Affiliation(s)
- Mei-Nian Xu
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Mei-Zhen Zhong
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Si-Ning Feng
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yan-Qin Xu
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiao-Ming Peng
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Kang Zeng
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Xiao-Wen Huang
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| |
Collapse
|
2
|
Tîrziu A, Avram S, Madă L, Crișan-Vida M, Popovici C, Popovici D, Faur C, Duda-Seiman C, Păunescu V, Vernic C. Design of a Synthetic Long Peptide Vaccine Targeting HPV-16 and -18 Using Immunoinformatic Methods. Pharmaceutics 2023; 15:1798. [PMID: 37513985 PMCID: PMC10384861 DOI: 10.3390/pharmaceutics15071798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023] Open
Abstract
Human papillomavirus types 16 and 18 cause the majority of cervical cancers worldwide. Despite the availability of three prophylactic vaccines based on virus-like particles (VLP) of the major capsid protein (L1), these vaccines are unable to clear an existing infection. Such infected persons experience an increased risk of neoplastic transformation. To overcome this problem, this study proposes an alternative synthetic long peptide (SLP)-based vaccine for persons already infected, including those with precancerous lesions. This new vaccine was designed to stimulate both CD8+ and CD4+ T cells, providing a robust and long-lasting immune response. The SLP construct includes both HLA class I- and class II-restricted epitopes, identified from IEDB or predicted using NetMHCPan and NetMHCIIPan. None of the SLPs were allergenic nor toxic, based on in silico studies. Population coverage studies provided 98.18% coverage for class I epitopes and 99.81% coverage for class II peptides in the IEDB world population's allele set. Three-dimensional structure ab initio prediction using Rosetta provided good quality models, which were assessed using PROCHECK and QMEAN4. Molecular docking with toll-like receptor 2 identified potential intrinsic TLR2 agonist activity, while molecular dynamics studies of SLPs in water suggested good stability, with favorable thermodynamic properties.
Collapse
Affiliation(s)
- Alexandru Tîrziu
- Department of Functional Sciences, "Victor Babes" University of Medicine and Pharmacy, Eftimie Murgu Square, No. 2, 300041 Timisoara, Romania
| | - Speranța Avram
- Department of Anatomy, Animal Physiology and Biophysics, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania
| | - Leonard Madă
- Syonic SRL, Grigore T Popa Street, No. 81, 300254 Timisoara, Romania
| | - Mihaela Crișan-Vida
- Department of Automation and Computers, Politehnica University of Timisoara, 300006 Timisoara, Romania
| | - Casiana Popovici
- Section of Bioinformatics, Division of Systems Medicine, Department of Metabolism, Digestion and Reproduction, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
| | - Dan Popovici
- Department of Mathematics, University of the West Timişoara, Bd. Vasile Pârvan No. 4, 300223 Timişoara, Romania
| | - Cosmin Faur
- Department of Orthopaedic Surgery, University of Medicine and Pharmacy "Victor Babes", Dropiei Street, No. 7, sc B, ap 8, 300661 Timisoara, Romania
| | - Corina Duda-Seiman
- Department of Chemistry and Biology, Faculty of Chemistry, Biology, Geography, West University of Timisoara, 16 Pestalozzi, 300115 Timisoara, Romania
| | - Virgil Păunescu
- Department of Functional Sciences, "Victor Babes" University of Medicine and Pharmacy, Eftimie Murgu Square, No. 2, 300041 Timisoara, Romania
- Center for Gene and Cellular Therapies in the Treatment of Cancer Timisoara-OncoGen, Clinical Emergency County Hospital "Pius Brinzeu" Timisoara, No. 156 Liviu Rebreanu, 300723 Timisoara, Romania
- Immuno-Physiology and Biotechnologies Center, Department of Functional Sciences, "Victor Babes" University of Medicine and Pharmacy, No. 2 Eftimie Murgu Square, 300041 Timisoara, Romania
| | - Corina Vernic
- Department of Functional Sciences, "Victor Babes" University of Medicine and Pharmacy, Eftimie Murgu Square, No. 2, 300041 Timisoara, Romania
- Discipline of Medical Informatics and Biostatistics, "Victor Babes" University of Medicine and Pharmacy, 300041 Timisoara, Romania
| |
Collapse
|
3
|
Jasrotia R, Dhanjal DS, Bhardwaj S, Sharma P, Chopra C, Singh R, Kumar A, Mubayi A, Kumar D, Kumar R, Goyal A. Nanotechnology based vaccines: Cervical cancer management and perspectives. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
4
|
Subbotina ME, Grunina TM, Sergienko OV, Elkina NV, Elkin DS, Novikova MV, Kopnin PB, Vinokurova SV. Recombinant Antigens E6 and E7 of Human Papilloma Virus Type 16: Preparation, Purification, and Assessment of the Immunogenicity and Antitumor Effects In Vivo. APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s0003683821030121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
5
|
He X, Zhou S, Quinn B, Jahagirdar D, Ortega J, Abrams SI, Lovell JF. HPV-Associated Tumor Eradication by Vaccination with Synthetic Short Peptides and Particle-Forming Liposomes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2007165. [PMID: 33605054 PMCID: PMC8011812 DOI: 10.1002/smll.202007165] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/28/2020] [Indexed: 05/27/2023]
Abstract
Human papilloma virus (HPV)-16 is associated with cervical cancers and induces expression of the E6 and E7 oncogenes. Using a murine cell line that expresses these, the genes are sequenced, and six predicted major histocompatibility complex (MHC) class I (MHC-I) epitopes are identified. A liposomal vaccine adjuvant based on cobalt-porphyrin-phospholipid (CoPoP) is admixed with synthetic 9-mer epitopes appended with three histidine residues, resulting in rapid formation of peptide-liposome particles. Immunization with multivalent peptides leads to protection from tumor challenge. Of the peptides screened, only the previously identified E749-57 epitope is functional. The peptide-liposome particles that form upon mixing E7HHH49-57 with CoPoP liposomes are stable in serum and are avidly taken up by immune cells in vitro. Immunization results in robust protection from tumor challenge and re-challenge. A 100 ng peptide dose protects mice in a therapeutic tumor challenge when admixed with CoPoP liposomes, whereas 200-fold higher peptide doses are ineffective with the polyinosinic-polycytidylic (poly(I:C)) adjuvant. CoPoP induces a strong infiltrating CD8+ T-cell response within the tumor microenvironment with an improved functional profile. Vaccine monotherapy using nanogram dosing of the E7HHH49-57 peptide admixed with CoPoP reverses the growth of large established tumors, eradicating subcutaneous tumors upwards of 100 mm3 . Immunization also eradicates lung tumors in a metastasis model.
Collapse
Affiliation(s)
- Xuedan He
- University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
| | - Shiqi Zhou
- University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
| | - Breandan Quinn
- University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
| | - Dushyant Jahagirdar
- Department of Anatomy and Cell Biology, McGill University Montreal, Quebec, Canada
| | - Joaquin Ortega
- Department of Anatomy and Cell Biology, McGill University Montreal, Quebec, Canada
| | - Scott I. Abrams
- Roswell Park Comprehensive Cancer Center, Department of Immunology, Buffalo, NY, 14263, USA
| | - Jonathan F. Lovell
- University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
| |
Collapse
|
6
|
Dorostkar F, Arashkia A, Roohvand F, Shoja Z, Navari M, Mashhadi Abolghasem Shirazi M, Shahosseini Z, Farahmand M, Shams Nosrati MS, Jalilvand S. Co-administration of 2'3'-cGAMP STING activator and CpG-C adjuvants with a mutated form of HPV 16 E7 protein leads to tumor growth inhibition in the mouse model. Infect Agent Cancer 2021; 16:7. [PMID: 33499895 PMCID: PMC7836183 DOI: 10.1186/s13027-021-00346-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 01/19/2021] [Indexed: 12/20/2022] Open
Abstract
Persistent infection with high-risk genotypes of human papillomavirus (HPV) is the leading cause of cervical cancer. The HPV oncoprotein E7 is constitutively expressed in cervical cancer and considered as an essential target for tumor-specific immunity. The goal of this study was to develop a candidate therapeutic vaccine based on the mutated E7 protein that had possibly reduced transformation capacity while was able to elicit a robust immune response. Therefore, the mutant type of HPV 16 E7 (E7GRG) protein was recombinantly expressed in E. coli. The protein was then purified and formulated with 2’-3’cGAMP CDN and/or CpG-C ODN adjuvants and subcutaneously injected to female C57BL/6 mice. To evaluate the immunogenic response, lymphocyte proliferation, secretion levels of IFN-γ and IL-4 cytokines, granzyme B level, and total IgG and subclasses of IgG antibody were measured. The anti-tumor activity was evaluated in tumor-harboring C57BL/6 mice. The highest rate of cell proliferation, IFN-γ and granzyme B levels, and amount of IgG antibody were found in mice group that were injected by E7GRG + 2′-3′cGAMP + CpG-C. Therapeutic immunization with E7GRG + 2′-3′cGAMP + CpG-C also significantly suppressed TC-1 tumor growth in mice. In conclusion, the results demonstrated that E7GRG + 2′-3′cGAMP + CpG-C induced strong cell-mediated and humoral immune responses that resulted in inhibition of tumor in mouse model.
Collapse
Affiliation(s)
- Fariba Dorostkar
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, 14155, Tehran, Iran
| | - Arash Arashkia
- Department of Molecular Virology, Pasteur Institute of Iran, Tehran, Iran.
| | - Farzin Roohvand
- Department of Molecular Virology, Pasteur Institute of Iran, Tehran, Iran
| | - Zabihollah Shoja
- Department of Molecular Virology, Pasteur Institute of Iran, Tehran, Iran
| | - Mohsen Navari
- Department of Medical Biotechnology, School of Paramedical Sciences, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
| | | | - Zahra Shahosseini
- Department of Molecular Virology, Pasteur Institute of Iran, Tehran, Iran
| | - Mohammad Farahmand
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, 14155, Tehran, Iran
| | | | - Somayeh Jalilvand
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, 14155, Tehran, Iran.
| |
Collapse
|
7
|
Agbolaghi S, Sorkhishams N, Sarvari R, Massoumi B. Globular/semiglobular Poly(ethylene glycol) nanostructures enveloped between polythiophenes with/without side chains via Y-Shaped copolymers. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121853] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
8
|
Mahmoudi M, Agbolaghi S, Mozaffari Z, Abbaspoor S, Massoumi B, Sarvari R, Hosseinzadeh N. Star‐Like Poly(
N
‐isopropylacrylamide) and Poly(ethylene glycol) Copolymers Self‐Arranged in Newfound Single Crystals and Associated Novel Class of Polymer Brush Regimes with V‐Type Tethers. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201700638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mojgan Mahmoudi
- Faculty of Polymer Engineering and Institute of Polymeric MaterialsSahand University of Technology Tabriz 5331711111 Iran
| | - Samira Agbolaghi
- Chemical Engineering DepartmentFaculty of EngineeringAzarbaijan Shahid Madani University Tabriz 5375171379 Iran
| | - Zahra Mozaffari
- Department of ChemistryPayame Noor University Tehran 19395−3697 Iran
| | - Saleheh Abbaspoor
- Faculty of Polymer Engineering and Institute of Polymeric MaterialsSahand University of Technology Tabriz 5331711111 Iran
| | | | - Raana Sarvari
- Department of ChemistryPayame Noor University Tehran 19395−3697 Iran
| | - Nasrin Hosseinzadeh
- Faculty of Polymer Engineering and Institute of Polymeric MaterialsSahand University of Technology Tabriz 5331711111 Iran
| |
Collapse
|
9
|
Varypataki EM, Benne N, Bouwstra J, Jiskoot W, Ossendorp F. Efficient Eradication of Established Tumors in Mice with Cationic Liposome-Based Synthetic Long-Peptide Vaccines. Cancer Immunol Res 2017; 5:222-233. [PMID: 28143806 DOI: 10.1158/2326-6066.cir-16-0283] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 01/10/2017] [Accepted: 01/10/2017] [Indexed: 11/16/2022]
Abstract
Therapeutic vaccination with synthetic long peptides (SLP) can be clinically effective against HPV-induced premalignant lesions; however, their efficiency in established malignant lesions leaves room for improvement. Here, we report the high therapeutic potency of cationic liposomes loaded with well-defined tumor-specific SLPs and a TLR3 ligand as adjuvant. The cationic particles, with an average size of 160 nm, could strongly activate functional, antigen-specific CD8+ and CD4+ T cells and induced in vivo cytotoxicity against target cells after intradermal vaccination. At a low dose (1 nmol) of SLP, our liposomal formulations significantly controlled tumor outgrowth in two independent models (melanoma and HPV-induced tumors) and even cured 75%-100% of mice of their large established tumors. Cured mice were fully protected from a second challenge with an otherwise lethal dose of tumor cells, indicating the potential of liposomal SLP in the formulation of powerful vaccines for cancer immunotherapy. Cancer Immunol Res; 5(3); 222-33. ©2017 AACR.
Collapse
Affiliation(s)
- Eleni Maria Varypataki
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden, the Netherlands
| | - Naomi Benne
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden, the Netherlands
| | - Joke Bouwstra
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden, the Netherlands
| | - Wim Jiskoot
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden, the Netherlands.
| | - Ferry Ossendorp
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Centre, Leiden, the Netherlands.
| |
Collapse
|
10
|
Plant-Based Peroral Vaccines. MULTIFUNCTIONAL SYSTEMS FOR COMBINED DELIVERY, BIOSENSING AND DIAGNOSTICS 2017. [PMCID: PMC7152130 DOI: 10.1016/b978-0-323-52725-5.00010-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Data about the development of plant-made peroral vaccines are stated on the base of transgenic plants. Different aspects of plant made vaccines (PMV) with their peculiarities and with a plethora of advantages are discussed, in comparison with traditional vaccines. The results disclosing the characteristics of the creation of PMV of both preventive and therapeutic actions are presented. The role of regulatory genes in the increase of the production of antigenic proteins, and in the activation of the glycosylation that enhances the efficiency of PMV, is discussed, according to preventive and therapeutic vaccines and plantibodies.
Collapse
|
11
|
Agbolaghi S, Zenoozi S, Hosseini Z, Abbasi F. Scrolled/Flat Crystalline Structures of Poly(3-hexylthiophene) and Poly(ethylene glycol) Block Copolymers Subsuming Unseeded Half-Ring-Like and Seeded Cubic, Epitaxial, and Fibrillar Crystals. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02295] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Samira Agbolaghi
- Institute of Polymeric Materials and ‡Faculty of Polymer Engineering, Sahand University of Technology, 5331711111 Tabriz, Iran
| | - Sahar Zenoozi
- Institute of Polymeric Materials and ‡Faculty of Polymer Engineering, Sahand University of Technology, 5331711111 Tabriz, Iran
| | - Zahra Hosseini
- Institute of Polymeric Materials and ‡Faculty of Polymer Engineering, Sahand University of Technology, 5331711111 Tabriz, Iran
| | - Farhang Abbasi
- Institute of Polymeric Materials and ‡Faculty of Polymer Engineering, Sahand University of Technology, 5331711111 Tabriz, Iran
| |
Collapse
|
12
|
Nazari M, Agbolaghi S, Abbaspoor S, Gheybi H, Abbasi F. Arrangement of Conductive Rod Nanobrushes via Conductive–Dielectric–Conductive Sandwiched Single Crystals of Poly(ethylene glycol) and Polyaniline Block Copolymers. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b02179] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Maryam Nazari
- Institute of Polymeric Materials and ‡Faculty of Polymer Engineering, Sahand University of Technology, Tabriz, Iran
| | - Samira Agbolaghi
- Institute of Polymeric Materials and ‡Faculty of Polymer Engineering, Sahand University of Technology, Tabriz, Iran
| | - Saleheh Abbaspoor
- Institute of Polymeric Materials and ‡Faculty of Polymer Engineering, Sahand University of Technology, Tabriz, Iran
| | - Homa Gheybi
- Institute of Polymeric Materials and ‡Faculty of Polymer Engineering, Sahand University of Technology, Tabriz, Iran
| | - Farhang Abbasi
- Institute of Polymeric Materials and ‡Faculty of Polymer Engineering, Sahand University of Technology, Tabriz, Iran
| |
Collapse
|
13
|
Di Bonito P, Petrone L, Casini G, Francolini I, Ammendolia MG, Accardi L, Piozzi A, D'Ilario L, Martinelli A. Amino-functionalized poly(L-lactide) lamellar single crystals as a valuable substrate for delivery of HPV16-E7 tumor antigen in vaccine development. Int J Nanomedicine 2015; 10:3447-58. [PMID: 26056443 PMCID: PMC4431504 DOI: 10.2147/ijn.s76023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Poly(l-lactide) (PLLA) is a biodegradable polymer currently used in many biomedical applications, including the production of resorbable surgical devices, porous scaffolds for tissue engineering, nanoparticles and microparticles for the controlled release of drugs or antigens. The surfaces of lamellar PLLA single crystals (PLLAsc) were provided with amino groups by reaction with a multifunctional amine and used to adsorb an Escherichia coli-produced human papillomavirus (HPV)16-E7 protein to evaluate its possible use in antigen delivery for vaccine development. Methods PLLA single crystals were made to react with tetraethylenepentamine to obtain amino-functionalized PLLA single crystals (APLLAsc). Pristine and amino-functionalized PLLAsc showed a two-dimensional microsized and one-dimensional nanosized lamellar morphology, with a lateral dimension of about 15–20 μm, a thickness of about 12 nm, and a surface specific area of about 130 m2/g. Both particles were characterized and loaded with HPV16-E7 before being administered to C57BL/6 mice for immunogenicity studies. The E7-specific humoral-mediated and cell-mediated immune response as well as tumor protective immunity were analyzed in mice challenged with TC-1 cancer cells. Results Pristine and amino-functionalized PLLAsc adsorbed similar amounts of E7 protein, but in protein-release experiments E7-PLLAsc released a higher amount of protein than E7-APLLAsc. When the complexes were dried for observation by scanning electron microscopy, both samples showed a compact layer, but E7-APLLAsc showed greater roughness than E7-PLLAsc. Immunization experiments in mice showed that E7-APLLAsc induced a stronger E7-specific immune response when compared with E7-PLLAsc. Immunoglobulin G isotyping and interferon gamma analysis suggested a mixed Th1/Th2 immune response in both E7-PLLAsc-immunized and E7-APLLAsc-immunized mice. However, only the mice receiving E7-APLLAsc were fully protected from TC-1 tumor growth after three doses of vaccine. Conclusion Our results show that APLLA single crystals improve the immunogenicity of HPV16-E7 and indicate that E7-APLLAsc could be used for development of an HPV16 therapeutic vaccine against HPV16-related tumors.
Collapse
Affiliation(s)
- Paola Di Bonito
- Department of Infectious, Parasitic and Immune-mediated Diseases, Italian National Institute of Health, Rome, Italy
| | - Linda Petrone
- Department of Infectious, Parasitic and Immune-mediated Diseases, Italian National Institute of Health, Rome, Italy
| | - Gabriele Casini
- Department of Chemistry, Sapienza University of Rome, Rome, Italy
| | | | | | - Luisa Accardi
- Department of Infectious, Parasitic and Immune-mediated Diseases, Italian National Institute of Health, Rome, Italy
| | - Antonella Piozzi
- Department of Chemistry, Sapienza University of Rome, Rome, Italy
| | - Lucio D'Ilario
- Department of Chemistry, Sapienza University of Rome, Rome, Italy
| | | |
Collapse
|
14
|
Chen J, Gu W, Yang L, Chen C, Shao R, Xu K, Xu ZP. Nanotechnology in the management of cervical cancer. Rev Med Virol 2015; 25:72-83. [DOI: 10.1002/rmv.1825] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Affiliation(s)
- Jiezhong Chen
- Australian Institute of Bioengineering and Nanotechnology; The University of Queensland; St Lucia QLD Australia
- School of Biomedical Sciences; The University of Queensland; St Lucia QLD Australia
| | - Wenyi Gu
- Australian Institute of Bioengineering and Nanotechnology; The University of Queensland; St Lucia QLD Australia
| | - Lei Yang
- School of Medicine and Health Management; Hangzhou Normal University; Hangzhou Zhejiang China
| | - Chen Chen
- School of Biomedical Sciences; The University of Queensland; St Lucia QLD Australia
| | - Renfu Shao
- GeneCology Research Centre, Faculty of Science, Health, Education and Engineering; The University of Sunshine Coast; Maroochydore QLD Australia
| | - Kewei Xu
- School of Medicine; The University of Queensland; St Lucia QLD Australia
| | - Zhi Ping Xu
- Australian Institute of Bioengineering and Nanotechnology; The University of Queensland; St Lucia QLD Australia
| |
Collapse
|
15
|
Human Papillomavirus Vaccine. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2015; 101:231-322. [DOI: 10.1016/bs.apcsb.2015.08.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
16
|
Therapeutic Vaccine Strategies against Human Papillomavirus. Vaccines (Basel) 2014; 2:422-62. [PMID: 26344626 PMCID: PMC4494257 DOI: 10.3390/vaccines2020422] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 05/16/2014] [Accepted: 05/27/2014] [Indexed: 12/14/2022] Open
Abstract
High-risk types of human papillomavirus (HPV) cause over 500,000 cervical, anogenital and oropharyngeal cancer cases per year. The transforming potential of HPVs is mediated by viral oncoproteins. These are essential for the induction and maintenance of the malignant phenotype. Thus, HPV-mediated malignancies pose the unique opportunity in cancer vaccination to target immunologically foreign epitopes. Therapeutic HPV vaccination is therefore an ideal scenario for proof-of-concept studies of cancer immunotherapy. This is reflected by the fact that a multitude of approaches has been utilized in therapeutic HPV vaccination design: protein and peptide vaccination, DNA vaccination, nanoparticle- and cell-based vaccines, and live viral and bacterial vectors. This review provides a comprehensive overview of completed and ongoing clinical trials in therapeutic HPV vaccination (summarized in tables), and also highlights selected promising preclinical studies. Special emphasis is given to adjuvant science and the potential impact of novel developments in vaccinology research, such as combination therapies to overcome tumor immune suppression, the use of novel materials and mouse models, as well as systems vaccinology and immunogenetics approaches.
Collapse
|