Correlation between oral drug absorption in humans and apparent drug permeability coefficients in human intestinal epithelial (Caco-2) cells

Journal Article · Fri Mar 29 00:00:00 EST 1991 · Biochemical and Biophysical Research Communications; (USA)

DOI:https://doi.org/10.1016/0006-291X(91)91647-U· OSTI ID:5734253

Artursson, P; Karlsson, J ^[1]

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1. Uppsala Univ., (Sweden)

Monolayers of a well differentiated human intestinal epithelial cell line, Caco-2, were used as a model to study passive drug absorption across the intestinal epithelium. Absorption rate constants (expressed as apparent permeability coefficients) were determined for 20 drugs and peptides with different structural properties. The permeability coefficients ranged from approximately 5 x 10{sup {minus} 8} to 5 x 10{sup {minus} 5} cm/s. A good correlation was obtained between data on oral absorption in humans and the results in the Caco-2 model. Drugs that are completely absorbed in humans had permeability coefficients greater than 1 x 10{sup {minus} 6} cm/s. Drugs that are absorbed to greater than 1% but less than 100% had permeability coefficients of 0.1-1.0 x 10{sup {minus} 6} cm/s while drugs and peptides that are absorbed to less than 1% had permeability coefficients of less than or equal to 1 x 10{sup {minus} 7} cm/s. The results indicate that Caco-2 monolayers can be used as a model for studies on intestinal drug absorption.

• OSTI ID: 5734253
• Journal Information: Biochemical and Biophysical Research Communications; (USA), Vol. 175:3; ISSN 0006-291X
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
CELL MEMBRANES
PERMEABILITY
DRUGS
INTESTINAL ABSORPTION
EPITHELIUM
MAN
MEMBRANE TRANSPORT
METABOLISM
TRACER TECHNIQUES
TRITIUM COMPOUNDS
ABSORPTION
ANIMAL TISSUES
ANIMALS
BODY
CELL CONSTITUENTS
HYDROGEN COMPOUNDS
ISOTOPE APPLICATIONS
MAMMALS
MEMBRANES
PRIMATES
TISSUES
UPTAKE
VERTEBRATES
550201* - Biochemistry- Tracer Techniques