there are lots of intermediates which play vital roles in immune system, interleukin is one of them. identify the origin or interleukin

1. mitochondria
2. ribosome
3. ER
4. epithelial cells

Hello Student
​Correct Answer is 4. Epithelial Cells.
interleukin is mediator of host responce in natural immunity and is made up of mononuclear phagocytes, epithelial and endothelial cells.