in a mouse model of pneumonia caused by murine chlamydia trachomatis ( mouse pneumonitis agent [ mopn ] ) , tumor necrosis factor alpha ( tnf-alpha ) antigen and bioactivity were demonstrated in vivo in the lung during mopn infection in both athymic ( nude ) and heterozygous ( nu/+ ) mice .
C0024109
lung
C0032285
mopn