Cytotoxicity and Ciliostasis in Tracheal Explants Exposed to Cadmium Salts

Cadmium salts were examined for their biological effects on ciliated respiratory epithelium in hamster tracheal explants. Cadmium chloride and cadmium acetate both caused significant decreases in ciliary motion when tested at 100 μM and above. Reductions in relative ciliary activity were dose-depend...

Full description

Saved in:
Bibliographic Details
Published in:Environmental health perspectives 1982-04, Vol.44, p.189-195
Main Authors: Gabridge, Michael G., Meccoli, Rose Ann
Format: Article
Language:English
Subjects:
Acetates
Adenosine Triphosphate - metabolism
Animals
Cadmium
Cadmium - metabolism
Cadmium - toxicity
Cellular metabolism
Chlorides
Cilia - drug effects
Cricetinae
Cytotoxicity
Epithelial cells
Epithelium
Intestines
Lungs
Male
Mesocricetus
Organ Culture Techniques
Oxidoreductases - metabolism
Time Factors
Trachea
Trachea - cytology
Trachea - drug effects
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Cadmium salts were examined for their biological effects on ciliated respiratory epithelium in hamster tracheal explants. Cadmium chloride and cadmium acetate both caused significant decreases in ciliary motion when tested at 100 μM and above. Reductions in relative ciliary activity were dose-dependent and were first demonstrable at 8-32 hr. The decreased ciliary motion was accompanied by decreases in two key metabolic compounds (ATP and dehydrogenase) which are normally associated with cell viability. Histopathological examination of cadmium-treated tissues showed an epithelium thinner than normal, with extensive vacuolization and few, if any, intact ciliated cells. The various biological effects exerted by cadmium are presented, along with potential mechanisms of pathogenesis for the observed ciliostasis and cytonecrosis. Decreases in adenosine triphosphate appear to play a critical role in the development of cadmium-related effects on cellular function and metabolism.
ISSN:0091-6765
1552-9924
DOI:10.1289/ehp.8244189