این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Iranian Journal of Basic Medical Sciences، جلد ۲۴، شماره ۱۰، صفحات ۱۳۶۶-۱۳۷۲
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Preparation and evaluation of the exotoxin A nano-gold conjugate as a vaccine candidate for Pseudomonas aeruginosa infections
چکیده انگلیسی مقاله Objective(s): Pseudomonas aeruginosa is an opportunistic pathogen that is an important cause of nosocomial infections. This bacterium produces various virulence factors, among which exotoxin A is significantly involved in mortality and morbidity. In this study, we evaluated the immunogenicity of native exotoxin A extracted from the P. aeruginosa and its conjugation with gold nanoparticles in the animal model.Materials and Methods: Exotoxin A was first extracted and purified from the culture medium of P. aeruginosa PAO1 by selective precipitation and dialysis. The gold nanoparticles were prepared using the Turkevich method and conjugated to the prepared exotoxin A by electrostatic force. The size and conjugation were confirmed using electron microscopy and Fourier transform infrared spectrometry (FTIR), respectively. The immunogenicity of prepared ExoA-gold nanoparticles was investigated in the mice model.Results: The results indicated that nano-gold particles can be conjugated to the native exotoxin A with high efficiency. Immunogenicity investigation demonstrated that antibody titers produced against native exotoxin A and its conjugate to nano-gold particles are significant in a mouse model (P< 0.005). Moreover, significant protection against 2×LD50 P. aeruginosa infection was observed in animals immunized with nano-gold-exotoxin A as compared with control groups (P=0.00).Conclusion: Our study indicated that exotoxin A can be produced with acceptable purity in the laboratory, and conjugated to gold nanoparticles. Based on these results nano-gold-exotoxin A conjugate is highly immunogenic and can be considered a potential vaccine candidate for P. aeruginosa infections.
کلیدواژه‌های انگلیسی مقاله Exotoxin A, Gold Nanoparticles, Immunization, Pseudomonas aeruginosa, Vaccine candidate
نویسندگان مقاله | Masoumeh Abbasi
Department of Microbiology, Jahrom Branch, Islamic Azad University, Jahrom, Iran


| Asghar Tanomand
Department of Microbiology, Maragheh University of Medical Sciences, Maragheh, Iran


| Farshid Kafilzadeh
Department of Microbiology, Jahrom Branch, Islamic Azad University, Jahrom, Iran


| Samaneh Zolghadri
Department of Microbiology, Jahrom Branch, Islamic Azad University, Jahrom, Iran


| Hasan Hosainzadegan
Department of Microbiology, Maragheh University of Medical Sciences, Maragheh, Iran
نشانی اینترنتی https://ijbms.mums.ac.ir/article_18800.html
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده Original Article
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات