Journal
MICROBIAL PATHOGENESIS
Volume 97, Issue -, Pages 231-235Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.micpath.2016.06.004
Keywords
Immunotherapy; HP-NAP; IgY; Gastrointestinal disease; Alternative therapy
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Funding
- Tarbiat Modares University (Tehran, Iran)
- Pasteur Institute of Iran (Alborz, Iran)
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Helicobacter pylori is a major human pathogen related to gastric adenocarcinoma and gastroduodenal diseases. Treatment of H. pylori infections is complicated by the rise of antibiotic resistance, necessitating investigation of alternative therapies. One such alternative is passive immunization by oral administration of antibacterial immunoglobulin. In the present study, chicken immunoglobulin (IgY) was used for passive immunotherapy against a major virulence factor of H. pylori, namely recombinant HP-Nap protein. Recombinant HP-Nap was prepared and used to immunize hens. IgY was purified from the eggs by polyethylene glycol precipitation method with a total IgY-HP-NAP yield of 30 mg per egg. The inhibitory effect of specific IgY on H. pylori attachment was investigated in AGS cell line infected by the bacteria. The results demonstrate the potent effect of IgY-HP-NAP in inhibition of H. pylori attachment to the AGS cells. (C) 2016 Elsevier Ltd. All rights reserved.
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