MMP9 and tuberculosis: MMP‐1 was the most highly expressed, while MMP‐2, MMP‐7, MMP‐9, MMP‐14 and MMP‐25 expression was also induced by Mtb infection.142 Luckily, antigens of cynomolgus macaque give cross‐reactivity with immunologic reagents made for human cells and tissue, thus making the immunohistochemical investigation easier in these TB models.