Mucosal surfaces are the first site of infection for most infectious diseases and oral vaccination can provide protection as line defense. Unlike systemic administration, immunization stimulate cellular humoral immune responses at both mucosal levels to induce broad-spectrum long-lasting immunity. Therefore, design a successful vaccine, it is essential well responses. Successful vaccines need o...

The HIV vaccines tested in the halted Step efficacy trial and the modestly successful phase 3 RV144 trial were designed to elicit strong systemic immune responses; therefore, strategies to direct immune responses into mucosal sites should be tested in an effort to improve AIDS vaccine efficacy. However, as increased CD4(+) T-cell activation and recruitment to mucosal sites have the potential to...

Several live attenuated Shigella vaccines of different serotypes have been shown to be safe, immunogenic, and in one case effective against challenge with virulent strains. The ability to invade epithelial cells remains critical for the success of these vaccine candidates. Live, orally administered Shigella vaccine derivatives are also being evaluated as multivalent mucosal vaccines able to del...

Avian influenza A H5N1 is a virus with pandemic potential. Mucosal vaccines are attractive as they have the potential to block viruses at the site of entry, thereby preventing both disease and further transmission. The intranasal route is safe for the administration of seasonal live-attenuated influenza vaccines, but may be less suitable for administration of pandemic vaccines. Research into no...

PURPOSE Recombinant subunit vaccines provide safe and targeted protection against microbial infections. However, the protective efficacy of recombinant subunit vaccines tends to be less potent than the whole cell vaccines, especially when they are administered through mucosal routes. We have reported that a bacterial flagellin has strong mucosal adjuvant activity to induce protective immune res...

Mucosal administration of vaccines is an important approach to the induction of appropriate immune responses to microbial and other environmental antigens in systemic sites and peripheral blood as well as in most external mucosal surfaces. The development of specific antibody- or T-cell-mediated immunologic responses and the induction of mucosally induced systemic immunologic hyporesponsiveness...

The pathogens of most infectious diseases invade the host through mucosal sites, and immunization with vaccines is best means combating these diseases. Oral delivery nasal are common methods vaccination. However, process inefficient, vaccination ineffective because vaccine formulation easily rapidly removed has difficulty in crossing surface. In this paper, we investigated whether immune respon...

The mucosal immune system consists of molecules, cells, and organized lymphoid structures intended to provide immunity to pathogens that impinge upon mucosal surfaces. Mucosal infection by intracellular pathogens results in the induction of cell- mediated immunity, as manifested by CD4-positive (CD4 + ) T helper-type 1 cells, as well as CD8 + cytotoxic T-lymphocytes. These responses are normall...

Pathogens that invade the mucosa are better repelled if the vaccines against them are delivered to the right target cells. Nochi et al. (page 2789) now identify an antibody that delivers vaccines to super-absorbent cells lining mucosal surfaces. In mucosal tissues such as the airways and digestive tract, immune responses are only weakly stimulated by injected vaccines, which are taken up by cir...