Objective: To express a fusion protein of Neisseria gonorrhoeae with a mucosal adjuvant.
Methods: The gene coding Loop VI-VIII(PL678) of porin, an out-membrane protein of Neisseria gonorrhoeae, was obtained by PCR. It was inserted into a plasmid fused with subunit B of heat labile enterotoxin. The recombinant was transformed in E. coli. The expression of fusion protein was analysed by ELISA, SDS-PAGE and Western-blot.
Result: Fusion protein with LTB was successfully expressed, and displayed both the ability of binding GM1 and the reactogenicity with polyclonal antibodies against Neisseria gonorrhoeae.
Conclusion: The expression of fusion protein laid a foundation for the study of the intramolecular vaccine against Neisseria gonorrhoeae.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Rational selection of TbpB variants yields a bivalent vaccine with broad coverage against Neisseria gonorrhoeae.
NPJ Vaccines
January 2025
Department of Molecular Genetics, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada.
Neisseria gonorrhoeae is an on-going public health problem due in part to the lack of success with efforts to develop an efficacious vaccine to prevent this sexually transmitted infection. The gonococcal transferrin binding protein B (TbpB) is an attractive candidate vaccine antigen. However, it exhibits high levels of antigenic variability, posing a significant obstacle in evoking a broadly protective immune response.
View Article and Find Full Text PDFExploring SNP filtering strategies: the influence of strict vs soft core.
Microb Genom
January 2025
Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia.
Phylogenetic analyses are crucial for understanding microbial evolution and infectious disease transmission. Bacterial phylogenies are often inferred from SNP alignments, with SNPs as the fundamental signal within these data. SNP alignments can be reduced to a 'strict core' by removing those sites that do not have data present in every sample.
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 PDFTtrAgo-mediated nucleic acid detection system and portable device for rapid detection of sexually transmitted diseases.
Biosens Bioelectron
December 2024
Hanshan Normal University, Chaozhou, Guangdong Province, China. Electronic address:
The development of rapid and multiplexed point-of-care (POC) diagnostic tools is vital for the prevention and control of sexually transmitted diseases (STIs). Here, we developed a POC-comprehensive Thermococcus thioreducensArgonaute (TtrAgo)-mediated nucleic acid detection system (POC-CANDY) and palm-sized portable detection device "Owl-1" for the simultaneous detection of Ureaplasma urealyticum, Chlamydia trachomatis, Neisseria gonorrhoeae, human papillomavirus types 16/18 and antibiotic resistance molecular markers [tetM, and gyrA mutation (S91F)]. Using recombinase polymerase amplification (RPA), the optimized POC-CANDY could finish the whole detection procedure within 55 min and achieve a limit of detection of 10 copies/μL.
View Article and Find Full Text PDFEmergence of ceftriaxone-resistant Neisseria gonorrhoeae through horizontal gene transfer among Neisseria spp.
J Infect Dis
January 2025
Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan.
Objectives: It has been suggested that the emergence of ceftriaxone-resistant strains of Neisseria gonorrhoeae involves the incorporation of the penA gene from commensal Neisseria spp. that are resistant to ceftriaxone. However, the mechanism of this mosaic penA generation is unknown.
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!