This invention relates to the field of molecular physiology. Specifically, this invention relates to the prevention and/or treatment of acute inflammation of the respiratory tract, especially acute lung injury (ALI) or acute respiratory distress syndrome (ARDS). Levels of CCL7 have been demonstrated to be increased in patients suffering from such conditions and animal models of such conditions. Antagonists of CCL7 and/or other members of the PAR1-CCL7 axis, or CCL2 can be used to prevent and/or treat these conditions.