» Articles » PMID: 6451798

Secretion of Lysosomal Enzymes by Human Placental Villi in Vitro

Overview
Publisher Springer
Specialty Biochemistry
Date 1980 Dec 10
PMID 6451798
Citations 1
Authors
Affiliations
Soon will be listed here.
Abstract

Chorionic villi from first trimester and term human placentas have been incubated in vitro and shown to release the lysosomal enzymes, beta-hexosaminidase, alpha-glucosidase and beta-glucuronidase. There was negligible release of the cytoplasmic enzyme, lactate dehydrogenase, under the same conditions. The first trimester villi released proportionally more of their lysosomal enzyme content than did the term villi. Extracellular levels of beta-hexosaminidase were raised and those of alpha-glucosidase and beta-glucuronidase were lowered when tissue was incubated with 1 microM colchicine, suggesting that microtubules are involved in the control of lysosomal enzyme release from placental villi.

Citing Articles

Dose-dependent induction of embryonic abnormalities in vitro by tissue homogenates of placenta and decidua.

Huxham I, Gupta M, Azoubel R, Beck F Br J Exp Pathol. 1982; 63(1):95-102.

PMID: 7199928 PMC: 2040736.

References
1.
Heath D, Palmer J, Aurbach G . The hypocalcemic action of colchicine. Endocrinology. 1972; 90(6):1589-93. DOI: 10.1210/endo-90-6-1589. View

2.
Wilson L, Bamburg J, Mizel S, Grisham L, Creswell K . Interaction of drugs with microtubule proteins. Fed Proc. 1974; 33(2):158-66. View

3.
Telegdy G, Weeks J, Archer D, Wiqvist N, DICZFALUSY E . Acetate and cholesterol metabolism in the human foeto-placental unit at midgestation. 2. Steroids synthesized and secreted by the foetus. Acta Endocrinol (Copenh). 1970; 63(1):119-33. DOI: 10.1530/acta.0.0630119. View

4.
Pion R, CONRAD S, Wolf B . Pregnenolone sulfate-an efficient precursor for the placental production of progesterone. J Clin Endocrinol Metab. 1966; 26(2):225-6. DOI: 10.1210/jcem-26-2-225. View

5.
Muller P, Rossignol B . Microtubules and protein secretion in rat lacrimal glands. Relationship between colchicine binding and its inhibitory effect on the intracellular transport of proteins. J Biol Chem. 1978; 253(11):3870-6. View