negatively regulates myeloid dendritic cell antigen processing and presentation negative regulation of dendritic cell antigen processing and presentation regulation of myeloid dendritic cell antigen processing and presentation negative regulation of myeloid dendritic cell antigen processing and presentation down regulation of myeloid dendritic cell antigen processing and presentation Any process that stops, prevents, or reduces the frequency, rate, or extent of myeloid dendritic cell antigen processing and presentation. GO:0002608 inhibition of myeloid dendritic cell antigen processing and presentation downregulation of myeloid dendritic cell antigen processing and presentation down-regulation of myeloid dendritic cell antigen processing and presentation biological_process biological regulation Schizosaccharomyces