In the present study, CIC-3, one of the voltage-dependent chloride channels
, was identified in human nasal tissue. In situ hybridization and immunohis
tochemical investigations demonstrated the localization of CIC-3 in the ser
ous acini and ductal portions of submucosal nasal glands, which are the pri
mary source of nasal secretion. Our data suggest that this channel contribu
tes to nasal secretion via chloride transport. Its dysfunction might lead t
o abnormal nasal secretion in such pathological states as sinusitis. Copyri
ght (C) 2001 S. Karger AG, Basel.