Abnormal mucosal-associated invariant T cell proportion Decreased mucosal-associated invariant T cell proportion 2021-05-02T20:28:29Z Flow cytometry may identify MAIT cells as CD3+Valpha7+CD161hi or Tet-MR1+CD161hi. Decreased MAIT cell frequency A decreased proportion of circulating mucosal-associated invariant T (MAIT) cells relative to total T cell count. Reduced proportion of mucosal-associated invariant T cells Reduced mucosal-associated invariant T cell proportion