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Adjuvant-dependent impacts on vaccine-induced humoral responses and protection in preclinical models of nasal and genital colonization by pathogenic Neisseria.
Vaccine
January 2025
Department of Molecular Genetics, Temerty Faculty of Medicine, University of Toronto, Canada. Electronic address:
Neisseria gonorrhoeae, which causes the sexually transmitted infection gonorrhea and Neisseria meningitidis, a leading cause of bacterial meningitis and septicemia, are closely related human-restricted pathogens that inhabit distinct primary mucosal niches. While successful vaccines against invasive meningococcal disease have been available for decades, the rapid rise in antibiotic resistance has led to an urgent need to develop an effective gonococcal vaccine. Several surface antigens are shared among these two pathogens, making cross-species protection an exciting prospect.
View Article and Find Full Text PDFTransferrin-binding domain inserted-adenovirus hexon engineering enables systemic immune evasion and intratumoral T-cell activation.
Theranostics
January 2025
Department of Pharmacology, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea.
Adenovirus-based therapies have encountered significant challenges due to host immunity, particularly from pre-existing antibodies. Many trials have struggled to evade antibody response; however, the efficiency of these efforts was limited by the diversity of antibody Fv-region recognizing multiple amino acid sequences. In this study, we developed an antibody-evading adenovirus vector by encoding a plasma-rich protein transferrin-binding domain.
View Article and Find Full Text PDFAseptic meningitis from herpes simplex virus proctitis.
BMJ Case Rep
January 2025
Graduate Medical Education, University of Miami Miller School of Medicine, Fort lauderdale, Florida, USA.
Sexually transmitted proctitis, a prevalent concern among men who have sex with men (MSM) is frequently caused by a range of pathogens, including herpes simplex virus (HSV), and While HSV-associated proctitis typically presents with visible lesions, cases without external manifestations remain evasive. We report the case of an MSM in his early 30s presenting with dyschezia and perineal discomfort after unprotected anoreceptive intercourse. Despite initial inconspicuous findings, rectal swabs revealed HSV-2 infection.
View Article and Find Full Text PDFProtective Antimicrobial Effect of the Potential Vaccine Created on the Basis of the Structure of the IgA1 Protease from .
Vaccines (Basel)
November 2024
Laboratory of Proteolytic Enzyme Chemistry, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia.
IgA1 protease is one of the virulence factors of , and other pathogens causing bacterial meningitis. The aim of this research is to create recombinant proteins based on fragments of the mature IgA1 protease A-P from serogroup B strain H44/76. These proteins are potential components of an antimeningococcal vaccine for protection against infections caused by pathogenic strains of and other bacteria producing serine-type IgA1 proteases.
View Article and Find Full Text PDFA systematic review to identify research gaps in studies modeling MenB vaccinations against Neisseria infections.
PLoS One
January 2025
School of Mathematics, Manchester University, Manchester, United Kingdom.
The genus Neisseria includes two major human pathogens: N. meningitidis causing bacterial meningitis/septicemia and N. gonorrhoeae causing gonorrhoea.
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