Peptide-Based Vaccines: An Efficient Alternative to Combat Infectious Diseases and Drug Resistance

A special issue of Bioengineering (ISSN 2306-5354). This special issue belongs to the section "Regenerative Engineering".

Deadline for manuscript submissions: 28 February 2025 | Viewed by 4892

Special Issue Editors


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Guest Editor
Animal Sciences Research Center, University of Missouri, Columbia, MO 65211, USA
Interests: antimicrobial peptides; infectious diseases; vaccines; anticancer; drug resistance

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Guest Editor
Department of Pathology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
Interests: yeast-based vaccine; virus like particles; yeast-based screening; industrial application of yeast; recombinant proteins

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Guest Editor
Department of Bioscience and Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, WB, India
Interests: antimicrobial peptides; drug resistance; protein engineering; lipopeptides

Special Issue Information

Dear Colleagues,

As the world is already struggling with the rapid emergence of drug resistance and scarcity of efficient antibiotics, the outbreak of new infectious agents such as SARS-CoV-2 has made the development of new antimicrobial agent or strategies to fight against these challenges urgent. Peptide-based vaccines are recognized as one such potential strategy for combatting drug resistance and new infections. Vaccines have already been proven to improve the management of infectious diseases as they aim to prevent infectious disease rather than treat it. Further, the use of antimicrobial peptides (AMPs) as subunit vaccines or adjuvants is another potential strategy with which to combat infections and thus slow down the evolution of drug resistance.

For this Special Issue, authors are invited to submit original research, review articles, short communications, case series, and opinion papers related to but not limited to the following specific topics of interest:

  1. Characterization and design of novel-peptide-based vaccines or therapies.
  2. Strategies for the development of peptide-based vaccines against infectious diseases.
  3. Peptide-based vaccines and immunotherapies to combat cancer.
  4. Applications and strategies to use peptide-based vaccines against autoimmune disease.
  5. Peptide-based vaccines to combat against fungal infections and antifungal drug resistance.
  6. Protein engineering strategies to design and alter the pattern of immunodominance in peptide-based vaccines.
  7. Combination treatment strategies of peptide-based vaccines with other drugs or therapies to improve efficacy.

Peptide-based immunotherapies in clinical trials and therapeutics.

Dr. Piyush Baindara
Dr. Ravinder Kumar
Dr. Santi Mohan Mandal
Guest Editors

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Keywords

  • peptide-based vaccines
  • drug resistance
  • protein engineering
  • infectious diseases
  • antibacterial
  • antifungal
  • antiviral
  • immunotherapies
  • therapeutics

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Published Papers (3 papers)

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Research

21 pages, 5581 KiB  
Article
Reverse Vaccinology Integrated with Biophysics Techniques for Designing a Peptide-Based Subunit Vaccine for Bourbon Virus
by Taghreed N. Almanaa
Bioengineering 2024, 11(11), 1056; https://doi.org/10.3390/bioengineering11111056 - 23 Oct 2024
Viewed by 913
Abstract
Despite the seriousness of the disease carried by ticks, little is known about the Bourbon virus. Only three US states have recorded human cases of Bourbon virus (BRBV) infection; in all cases, a tick bite was connected with the onset of the illness. [...] Read more.
Despite the seriousness of the disease carried by ticks, little is known about the Bourbon virus. Only three US states have recorded human cases of Bourbon virus (BRBV) infection; in all cases, a tick bite was connected with the onset of the illness. The Bourbon virus (BRBV) belongs to the Orthomyxoviridae family and Thogotovirus genus, originating in the states of the US, i.e., Kansas, Oklahoma and Missouri. The growing rates of BRBV infections in various parts of the US highlight the necessity for a thorough analysis of the virus’s transmission mechanisms, vector types and reservoir hosts. Currently, there are no vaccines or efficient antiviral therapies to stop these infections. It is imperative to produce a vaccination that is both affordable and thermodynamically stable to reduce the likelihood of future pandemics. Various computational techniques and reverse vaccinology methodologies were employed to identify specific B- and T-cell epitopes. After thorough examination, the linker proteins connected the B- and T-cell epitopes, resulting in this painstakingly constructed vaccine candidate. Furthermore, 3D modeling directed the vaccine construct toward molecular docking to determine its binding affinity and interaction with TLR-4. Human beta-defensin was used as an adjuvant and linked to the N-terminus to boost immunogenicity. Furthermore, the C-IMMSIM simulation resulted in high immunogenic activities, with activation of high interferon, interleukins and immunoglobulin. The results of the in silico cloning process for E. coli indicated that the vaccine construct will try its utmost to express itself in the host, with a codon adaptation CAI value of 0.94. A net binding free energy of −677.7 kcal/mol obtained during docking showed that the vaccine has a high binding affinity for immunological receptors. Further validation was achieved via molecular dynamic simulations, inferring the confirmational changes during certain time intervals, but the vaccine remained intact to the binding site for a 100 ns interval. The thermostability determined using an RMSF score predicted certain changes in the mechanistic insights of the loop region with carbon alpha deviations, but no major changes were observed during the simulations. Thus, the results obtained highlight a major concern for researchers to further validate the vaccine’s efficacy using in vitro and in vivo approaches. Full article
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11 pages, 2348 KiB  
Article
CycP: A Novel Self-Assembled Vesicle-Forming Cyclic Antimicrobial Peptide to Control Drug-Resistant S. aureus
by Piyush Baindara, Dinata Roy and Santi M. Mandal
Bioengineering 2024, 11(8), 855; https://doi.org/10.3390/bioengineering11080855 - 21 Aug 2024
Viewed by 1102
Abstract
Antimicrobial peptides (AMPs) are considered a promising alternative to conventional antibiotics to fight against the rapid evolution of antibiotic resistance. Other than their potent antimicrobial properties, AMP-based vesicles can be used as efficient drug-delivery vehicles. In the present study, we synthesized and characterized [...] Read more.
Antimicrobial peptides (AMPs) are considered a promising alternative to conventional antibiotics to fight against the rapid evolution of antibiotic resistance. Other than their potent antimicrobial properties, AMP-based vesicles can be used as efficient drug-delivery vehicles. In the present study, we synthesized and characterized a new cyclic AMP, consisting of all-hydrophobic cores with antimicrobial activity against S. aureus. Interestingly, CycP undergoes supramolecular self-assembly, and self-assembled CycP (sCycP) vesicles are characterized under an electron microscope; however, these vesicles do not display antimicrobial activity. Next, sCycP vesicles are used in combination with SXT (sulfamethoxazole–trimethoprim) vesicles to check the drug loading and delivery capacity of sCycP vesicles to bacterial cell membranes. Interestingly, sCycP vesicles showed synergistic action with SXT vesicles and resulted in a significant reduction in MIC against S. aureus. Further, electron microscopy confirmed the membrane-specific killing mechanism of SXT-loaded sCycP vesicles. Additionally, CycP showed high binding affinities with the β-lactamase of S. aureus, which was one of its possible antimicrobial mechanisms of action. Overall, the results suggested that CycP is a novel self-assembled dual-action cyclic AMP with non-cytotoxic properties that can be used alone as an AMP or a self-assembled drug delivery vehicle for antibiotics to combat S. aureus infections. Full article
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24 pages, 7165 KiB  
Article
Subtractive Proteomics and Reverse-Vaccinology Approaches for Novel Drug Target Identification and Chimeric Vaccine Development against Bartonella henselae Strain Houston-1
by Sudais Rahman, Chien-Chun Chiou, Shabir Ahmad, Zia Ul Islam, Tetsuya Tanaka, Abdulaziz Alouffi, Chien-Chin Chen, Mashal M. Almutairi and Abid Ali
Bioengineering 2024, 11(5), 505; https://doi.org/10.3390/bioengineering11050505 - 17 May 2024
Cited by 5 | Viewed by 2266
Abstract
Bartonella henselae is a Gram-negative bacterium causing a variety of clinical symptoms, ranging from cat-scratch disease to severe systemic infections, and it is primarily transmitted by infected fleas. Its status as an emerging zoonotic pathogen and its capacity to persist within host erythrocytes [...] Read more.
Bartonella henselae is a Gram-negative bacterium causing a variety of clinical symptoms, ranging from cat-scratch disease to severe systemic infections, and it is primarily transmitted by infected fleas. Its status as an emerging zoonotic pathogen and its capacity to persist within host erythrocytes and endothelial cells emphasize its clinical significance. Despite progress in understanding its pathogenesis, limited knowledge exists about the virulence factors and regulatory mechanisms specific to the B. henselae strain Houston-1. Exploring these aspects is crucial for targeted therapeutic strategies against this versatile pathogen. Using reverse-vaccinology-based subtractive proteomics, this research aimed to identify the most antigenic proteins for formulating a multi-epitope vaccine against the B. henselae strain Houston-1. One crucial virulent and antigenic protein, the PAS domain-containing sensor histidine kinase protein, was identified. Subsequently, the identification of B-cell and T-cell epitopes for the specified protein was carried out and the evaluated epitopes were checked for their antigenicity, allergenicity, solubility, MHC binding capability, and toxicity. The filtered epitopes were merged using linkers and an adjuvant to create a multi-epitope vaccine construct. The structure was then refined, with 92.3% of amino acids falling within the allowed regions. Docking of the human receptor (TLR4) with the vaccine construct was performed and demonstrated a binding energy of −1047.2 Kcal/mol with more interactions. Molecular dynamic simulations confirmed the stability of this docked complex, emphasizing the conformation and interactions between the molecules. Further experimental validation is necessary to evaluate its effectiveness against B. henselae. Full article
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