Oral vaccine reaches the gut mucosa
Nature Medicine
2012년7월17일
An oral vaccine that protects both rectal and genital mucosas in mice from viral infections by specifically targeting the large intestine is published online this week in Nature Medicine.
Mucosal immunization induces adequate immune responses that protect against pathogens at mucosal sites. However, intracolorectal administration of a potential vaccine is not practical at the clinic and an oral route would likely destroy the vaccine because of the high pH in the stomach.
Jay Berzofsky and colleagues designed a nanoparticle releasing system to solve this problem. The nanoparticles contain peptide vaccine and immune adjuvants coated with a polymer that precludes premature uptake in the small intestine and release of contents before reaching the large intestine. In mice, the oral vaccine system induced immunity and protected against rectal and vaginal viral challenge similar to colorectal vaccination, and this was specific to targeting of the large intestine mucosa. Clinical studies in humans will be needed to optimize the formulation of the oral vaccine to the physical characteristics of the human gut.
doi: 10.1038/nm.2866
리서치 하이라이트
-
7월1일
Criminology: Predicting police enforcement bias in major US citiesNature Human Behaviour
-
7월1일
Space health: The path of most resistance could help limit bone loss during spaceflightScientific Reports
-
6월30일
Microbiology: Transmission of gastrointestinal viruses in salivaNature
-
6월29일
COVID-19: Assessing instances of long COVID in UK health dataNature Communications
-
6월24일
Sport science: New wearable sensor to measure neck strain may detect potential concussionScientific Reports
-
6월23일
Scientific community: Women credited less than men in scientific paper authorshipNature