Pseudomonas aeruginosa is an important and hazardous nosocomial pathogen in respiratory tract infections and rapidly achieves antibiotic resistance, so it is necessary to develop an effective vaccine to combat the infection. The Type III secretion system (T3SS) protein P. aeruginosa V-antigen (PcrV), outer membrane protein F (OprF), and two kinds of flagellins (FlaA and FlaB) all play important roles in the pathogenesis of P. aeruginosa lung infection and its spread into deeper tissues. In a mouse acute pneumonia model, the protective effects of a chimer vaccine including PcrV, FlaA, FlaB, and OprF (PABF) protein were investigated. PABF immunization prompted robust opsonophagocytic titer of IgG antibodies and decreased bacterial burden, and improved survival afterward intranasal challenge with ten times 50% lethal doses (LD50) of P. aeruginosa strains, indicating its broad-spectrum immunity. Moreover, these findings showed a promise chimeric vaccine candidate to treat and control P. aeruginosa infections.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.micpath.2023.106033 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Enhanced Immunogenicity and Affinity with A35R-Fc-Based Chimeric Protein Compared to MPXV A35R Protein.
Viruses
January 2025
School of Public Health, Bengbu Medical University, Bengbu 233030, China.
The re-emergence of the mpox pandemic poses considerable challenges to human health and societal development. There is an urgent need for effective prevention and treatment strategies against the mpox virus (MPXV). In this study, we focused on the A35R protein and created a chimeric A35R-Fc protein by fusing the Fc region of IgG to its C-terminal.
View Article and Find Full Text PDFDevelopment of a multi-epitope chimeric vaccine in silico against Babesia bovis, Theileria annulata, and Anaplasma marginale using computational biology tools and reverse vaccinology approach.
PLoS One
January 2025
Department of Pathology and Parasitology, Chittagong Veterinary and Animal Sciences University (CVASU), Chittagong, Bangladesh.
The three rickettsial parasites- Babesia bovis, Theileria annulata and Anaplasma Marginale are responsible for causing Babesiosis, Theileriosis and Anaplasmosis among cattle. These diseases exist due to spreading of infected ticks. A large number of cattle were found to suffer from mixed infections caused by the three parasites at the same time.
View Article and Find Full Text PDFCD40 Ligand Potentiates Immunogenecity of Subunit Vaccine Candidate in a Murine Model.
Curr Issues Mol Biol
January 2025
Department of Biopharmacy, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China.
(Mhp) infection severely affects the daily weight gain and feed-to-meat ratio of pigs, while secondary infections with other pathogens can further lead to increased mortality, causing significant economic losses to the pig industry. CD40L is a molecular adjuvant that enhances the cellular and humoral immune responses to vaccines. In this study, the CD40L peptide was fused to the C-terminus of the chimeric P97R1P46P42 protein by genetic engineering using the pFastBac Dual vector.
View Article and Find Full Text PDFEngineering of a lysosomal-targeted GAA enzyme.
Protein Eng Des Sel
January 2025
Pfizer Rare Disease Research Unit, 610 Main Street, Cambridge, MA 02139, United States.
Pompe disease is a tissue glycogen disorder caused by genetic insufficiency of the GAA enzyme. GAA enzyme replacement therapies for Pompe disease have been limited by poor lysosomal trafficking of the recombinant GAA molecule through the native mannose-6-phosphate-mediated pathway. Here, we describe the successful rational engineering of a chimeric GAA enzyme that utilizes the binding affinity of a modified IGF-II moiety to its native receptor to bypass the mannose-6-phosphate-mediated lysosomal trafficking pathway, conferring a significant increase in cellular uptake of the GAA enzyme.
View Article and Find Full Text PDFEvolving Immunotherapy Strategies in Gastrointestinal Neuroendocrine Neoplasms.
Curr Treat Options Oncol
January 2025
The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins and Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA.
Treatment for neuroendocrine neoplasms (NENs) is tailored to the tumor's site of origin, grade, and differentiation. NENs are categorized into two main types: well-differentiated neuroendocrine tumors (NETs), which tend to grow more slowly and are less aggressive, and poorly differentiated neuroendocrine carcinomas (NECs), which are highly aggressive and harder to treat. Treatment options for NETs range from somatostatin analogues and mTOR inhibitors to peptide receptor radionuclide therapy (PRRT) with Lutetium-177 dotatate.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!