Kinetics of in vivo inhibition of tissue cathepsin D by pepstatin A. 1988

G Leto, and F M Tumminello, and N Gebbia, and L Rausa
Istituto di Farmacologia, Policlinico P. Giaccone, Palermo, Italy.

1. We have investigated the kinetics of inhibition of cathepsin D in heart, liver and skeletal muscle of CD-1 mice following administration of 25, 50, 100 and 200 mg/kg i.p. of pepstatin A, a specific inhibitor of this protease. 2. In the liver, a significant inhibition of cathepsin D occurred up to at least 15 days, whereas, in heart and skeletal muscle, this inhibition lasted for a much shorter period of time. 3. These results show that the recovery of enzyme activity to normal values is dose-dependent and that, at the same dose level, marked differences occur in the recovery of enzyme activity in these organ tissues, the liver being the most sensitive one.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D009132 Muscles Contractile tissue that produces movement in animals. Muscle Tissue,Muscle,Muscle Tissues,Tissue, Muscle,Tissues, Muscle
D009206 Myocardium The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow. Muscle, Cardiac,Muscle, Heart,Cardiac Muscle,Myocardia,Cardiac Muscles,Heart Muscle,Heart Muscles,Muscles, Cardiac,Muscles, Heart
D009842 Oligopeptides Peptides composed of between two and twelve amino acids. Oligopeptide
D010436 Pepstatins N-acylated oligopeptides isolated from culture filtrates of Actinomycetes, which act specifically to inhibit acid proteases such as pepsin and renin.
D002402 Cathepsin D An intracellular proteinase found in a variety of tissue. It has specificity similar to but narrower than that of pepsin A. The enzyme is involved in catabolism of cartilage and connective tissue. EC 3.4.23.5. (Formerly EC 3.4.4.23).
D005260 Female Females
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus

Related Publications

G Leto, and F M Tumminello, and N Gebbia, and L Rausa
January 1980, The Journal of surgical research,
G Leto, and F M Tumminello, and N Gebbia, and L Rausa
February 1992, The International journal of biochemistry,
G Leto, and F M Tumminello, and N Gebbia, and L Rausa
November 1976, Life sciences,
G Leto, and F M Tumminello, and N Gebbia, and L Rausa
November 1974, Bratislavske lekarske listy,
G Leto, and F M Tumminello, and N Gebbia, and L Rausa
December 1986, Journal of medicinal chemistry,
G Leto, and F M Tumminello, and N Gebbia, and L Rausa
August 1977, Developmental biology,
G Leto, and F M Tumminello, and N Gebbia, and L Rausa
April 1982, Research communications in chemical pathology and pharmacology,
G Leto, and F M Tumminello, and N Gebbia, and L Rausa
April 1973, Infection and immunity,
G Leto, and F M Tumminello, and N Gebbia, and L Rausa
November 1981, FEBS letters,
G Leto, and F M Tumminello, and N Gebbia, and L Rausa
April 1976, The Biochemical journal,
Copied contents to your clipboard!