Western-blotting of pig MCP. Blots were probed with mAb JM4C8 to show the distribution of pig MCP in several tissues. 1. Leucocytes, 2. Erythrocytes, 3. Platelets, 4. Granulocytes, 5. Lung, 6. Liver, 7. Kidney, 8. Spleen, 9. Brain. MW markers are shown on the left.