abstract |
[Problem] To provide a screening method for substances that improve the efficiency of delivery of mucosal vaccines, mucosal vaccines using such substances, etc. SOLUTION: Using M cells of the villi epithelial cell layer (villus M cells), A method for screening a substance that promotes transport or delivery of an antigen to M cells, for example, promoting transport or delivery of an antigen to M cells comprising the step of contacting the chorionic M cells with an antigen and / or a test compound. This is achieved by a method for screening a substance, a vaccine target substance identified by this screening method, a vaccine targeting the same, and the like. [Selection figure] None |