» Articles » PMID: 6929547

Phalloidin-induced Cholestasis: a Microfilament-mediated Change in Junctional Complex Permeability

Overview
Specialty Science
Date 1980 Apr 1
PMID 6929547
Citations 20
Authors
Affiliations
Soon will be listed here.
Abstract

Phalloidin, administered to male rats for 7 days (500 microgram per kg/day), increased the mean hepatic content of filamentous actin. Both bile flow and bile acid excretion diminished proportionally, whereas the bile-to-plasma ratios of [3H]inulin and [14C]sucrose increased significantly from 0.08 and 0.16 in controls to 0.37 and 0.69, respectively, in phalloidin-treated animals. Simultaneously, junctional permeability was altered as noted by the free penetration of ionic lanthanum into the zonula occludens and bile canaliculus. Freeze-fracture replicas of the junctional complex revealed rearrangements of the junctional elements and regions in which only a single element separated the canaliculus from the lateral intercellular space. These findings suggest that microfilaments influence the permeability of "tight junctions" between hepatocytes and that bile constituents might reflux from the canaliculus to the intercellular space in phalloidin-induced cholestasis.

Citing Articles

Radixin is required to maintain apical canalicular membrane structure and function in rat hepatocytes.

Wang W, Soroka C, Mennone A, Rahner C, Harry K, Pypaert M Gastroenterology. 2006; 131(3):878-84.

PMID: 16952556 PMC: 1820831. DOI: 10.1053/j.gastro.2006.06.013.


Characterization of the transport of the bicyclic peptide phalloidin by human hepatic transport proteins.

Fehrenbach T, Cui Y, Faulstich H, Keppler D Naunyn Schmiedebergs Arch Pharmacol. 2003; 368(5):415-20.

PMID: 14530907 DOI: 10.1007/s00210-003-0814-4.


Disturbed structural interactions between microfilaments and tight junctions in rat hepatocytes during extrahepatic cholestasis induced by common bile duct ligation.

Song J, van Marle J, Van Noorden C, Frederiks W Histochem Cell Biol. 1996; 106(6):573-80.

PMID: 8985745 DOI: 10.1007/BF02473272.


Modulation of tight junction morphology and permeability by an epithelial factor.

Jaeger M, Dodane V, Kachar B J Membr Biol. 1994; 139(1):41-8.

PMID: 8071986 DOI: 10.1007/BF00232673.


Morphological alterations of gap junctions in phalloidin-treated rat livers.

Ohta M, Okanoue T, Takami S, Nagao Y, Mori T, Hori N J Gastroenterol. 1994; 29(2):172-9.

PMID: 8012506 DOI: 10.1007/BF02358679.


References
1.
FORKER E . Two sites of bile formation as determined by mannitol and erythritol clearance in the guinea pig. J Clin Invest. 1967; 46(7):1189-95. PMC: 297118. DOI: 10.1172/JCI105612. View

2.
Wheeler H, Ross E, Bradley S . Canalicular bile production in dogs. Am J Physiol. 1968; 214(4):866-74. DOI: 10.1152/ajplegacy.1968.214.4.866. View

3.
FORKER E . The effect of estrogen on bile formation in the rat. J Clin Invest. 1969; 48(4):654-63. PMC: 322270. DOI: 10.1172/JCI106023. View

4.
Boyer J, SCHEIG R, KLATSKIN G . The effect of sodium taurocholate on the hepatic metabolism of sulfobromophthalein sodium (BSP). The role of bile flow. J Clin Invest. 1970; 49(2):206-15. PMC: 322462. DOI: 10.1172/JCI106229. View

5.
Laemmli U . Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970; 227(5259):680-5. DOI: 10.1038/227680a0. View