Recombinant endostatin was transiently expressed in Agrobacterium-inoculated leaf disks of Nicotiana tabacum var. Xanthi with a molecular size of 23 kDa. Expression of endostatin from a replicating vector based on tomato golden mosaic virus (TGMV) was 170% higher at the transcript level and double higher at the protein level than from a control vector of a non-replicating construct. Purified recombinant endostatin from tobacco leaf-disks has an anti-proliferative effect on bovine endothelial cells.