The present invention provides compositions and their use in the treatment of inflammatory diseases caused by T-cell proliferation such as sepsis, inflammatory bowel diseases, autoimmune encephalomyelitis, or lupus. The compositions comprise disubstituted ureas of Formulas I, II, III or IV:
R
1
—NH—CO—NH—Q—R
2
Formula I:
Et—NH—CO—NH—Q—R
2
Formula (II):
Et—NH—CO—NH—(CH
2
)
3
—NR
6
R
7
Formula (III):
Me
2
N—(CH
2
)
3
—NH—CO—NH—Q—R
2
Formula (IV):