{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Granzymes are exogenous serine proteases that are released by cytoplasmic granules within cytotoxic T-cells and natural killer cells. Their purpose is to induce apoptosis within virus-infected cells, thus destroying them. Granzyme B expressions have been reported by literature in natural killer/T-cell lymphoma, as well as anaplastic large cell lymphoma."}]}]}