Divided into two types, MGI and MGII, they participate in the formation of acquired membranes and inhibit and kill microorganisms.

Dissolve common oral bacteria and kill oral fungi

Interfering with the growth of microorganisms that require iron ions by chelating iron ions

Forms an effective antibacterial system with hydrogen peroxide and thiocyanate

Kills Candida albicans and Streptococcus mutans

Enhance the clearance of bacteria by phagocytes

An IgA dimer molecule, a secretory component molecule and a J chain.

According to the difference in antigenicity, the a chain is divided into two types, constituting two subcategories 1 and 2.

Tissue microbial adhesion and lysis

Neutralizes viruses and toxins

immune clearance

Produce defensins that directly kill pathogenic microorganisms

Reduce pH, reduce redox potential, compete for nutrients, occupy space and produce a variety of antibacterial substances to inhibit pathogenic bacteria

Including mucosa-associated lymphoid tissue MALT and scattered immune cells. MALT includes gut-associated lymphoid tissue, Waldeyer's loop, and bronchus-associated lymphoid tissue

By inducing cell death, clonal anergy, and regulatory T cells

There are three pairs of palatoglossopharynx. Contains all structural components required for the induction and expression of mucosal antibody responses.

Plasma cells account for the majority, producing the majority IgA, and a small amount of IgM and IgG

oral immunization

intranasal immunization

Transtonsillar immunization

Immunization via minor salivary glands

subunit vaccine

Synthetic peptide vaccines

live bacterial vector vaccine

DNA vaccine

A highly specific antibody produced from a single B cell clone that targets only one epitope of an antigen.

Tooth surface smear

Oral rinse