Regulation of gene expression in adult rat hepatocytes cultured on a basement membrane matrix

Erin G. Schuetz, Donna Li, Curtis John Omiecinski, Ursula Muller‐Eberhard, Hynda K. Kleinman, Barbara Elswick, Philip S. Guzelian

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Abstract

Freshly isolated adult rat hepatocytes, when cultured on type I collagen (commercially available as Vitrogen), assume a polygonal shape, form a stable monolayer within 24 hours, but lose the capacity to express some liver‐specific functions over time in culture. We incubated hepatocytes in a serum‐free medium on a reconstituted basement membrane gel, “matrigel” (prepared from an extract of extracellular matrix of the murine Engelbreth‐Holm‐Swarm sarcoma), and observed that the cells adhered firmly, remained rounded as single cells or clusters, and maintained liver‐specific gene expression for more than 1 week in vitro. Hepatocytes on matrigel secreted substantially higher amounts of albumin, transferrin, haptoglobin, and hemopexin, contained higher amounts of glutathione peroxidase, and, as judged by Northern blot analyses of extracted cellular RNA, expressed increased amounts of mRNA for the liver‐specific protein albumin (as compared with cells on vitrogen). In cultures treated with phenobarbital, cytochrome P‐450b, and cytochrome P‐450e, mRNAs and proteins were barely detectable in cells on Vitrogen but were induced to levels similar to those in the liver in vivo in matrigel cultures. Likewise, the use of matrigel greatly enhanced the induction of mRNA and protein for P‐450c by 3‐methylcholanthrene and for P‐450p by steroidal and nonsteroidal inducers. However, neither substratum permitted induction of P‐450d by 3‐methylcholanthrene, suggesting that the effects of matrigel are selective even for expression in liver of members of the superfamily of cytochrome P‐450 genes. Within 5 days in cultures on Vitrogen, hepatocytes expressed detectable amounts of fetal liver aldolase activity and also mRNA for vimentin and type I collagen, each considered a phenotypic change reflecting hepatocyte “dedifferentiation.” None of these was present in cells on matrigel. Responsiveness to mitogenic stimuli, as judged by incorporation of 3H‐thymidine into DNA, was also decreased in hepatocytes cultured on matrigel. Finally, there was a remarkable increase in the levels of mRNAs for the cytoskeleton proteins actin and tubulin in hepatocytes on both matrices during the first 2 days in culture. However, the continuously flattening hepatocytes on Vitrogen maintained substantially higher levels of cytoskeleton mRNA over time in culture than did the rounded cells on matrigel. We conclude that hepatocytes cultured on matrigel, as opposed to the standard collagen, exhibit remarkably enhanced expression of many liver‐specific functions.

Original languageEnglish (US)
Pages (from-to)309-323
Number of pages15
JournalJournal of Cellular Physiology
Volume134
Issue number3
DOIs
StatePublished - Jan 1 1988

Fingerprint

Gene Expression Regulation
Basement Membrane
Gene expression
Rats
Hepatocytes
Messenger RNA
Liver
Cytochromes
Collagen Type I
Albumins
Proteins
Hemopexin
matrigel
Fructose-Bisphosphate Aldolase
Haptoglobins
Vimentin
Tubulin
Transferrin
Phenobarbital
Glutathione Peroxidase

All Science Journal Classification (ASJC) codes

  • Physiology
  • Clinical Biochemistry
  • Cell Biology

Cite this

Schuetz, E. G., Li, D., Omiecinski, C. J., Muller‐Eberhard, U., Kleinman, H. K., Elswick, B., & Guzelian, P. S. (1988). Regulation of gene expression in adult rat hepatocytes cultured on a basement membrane matrix. Journal of Cellular Physiology, 134(3), 309-323. https://doi.org/10.1002/jcp.1041340302
Schuetz, Erin G. ; Li, Donna ; Omiecinski, Curtis John ; Muller‐Eberhard, Ursula ; Kleinman, Hynda K. ; Elswick, Barbara ; Guzelian, Philip S. / Regulation of gene expression in adult rat hepatocytes cultured on a basement membrane matrix. In: Journal of Cellular Physiology. 1988 ; Vol. 134, No. 3. pp. 309-323.
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Schuetz, EG, Li, D, Omiecinski, CJ, Muller‐Eberhard, U, Kleinman, HK, Elswick, B & Guzelian, PS 1988, 'Regulation of gene expression in adult rat hepatocytes cultured on a basement membrane matrix', Journal of Cellular Physiology, vol. 134, no. 3, pp. 309-323. https://doi.org/10.1002/jcp.1041340302

Regulation of gene expression in adult rat hepatocytes cultured on a basement membrane matrix. / Schuetz, Erin G.; Li, Donna; Omiecinski, Curtis John; Muller‐Eberhard, Ursula; Kleinman, Hynda K.; Elswick, Barbara; Guzelian, Philip S.

In: Journal of Cellular Physiology, Vol. 134, No. 3, 01.01.1988, p. 309-323.

Research output: Contribution to journalArticle

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T1 - Regulation of gene expression in adult rat hepatocytes cultured on a basement membrane matrix

AU - Schuetz, Erin G.

AU - Li, Donna

AU - Omiecinski, Curtis John

AU - Muller‐Eberhard, Ursula

AU - Kleinman, Hynda K.

AU - Elswick, Barbara

AU - Guzelian, Philip S.

PY - 1988/1/1

Y1 - 1988/1/1

N2 - Freshly isolated adult rat hepatocytes, when cultured on type I collagen (commercially available as Vitrogen), assume a polygonal shape, form a stable monolayer within 24 hours, but lose the capacity to express some liver‐specific functions over time in culture. We incubated hepatocytes in a serum‐free medium on a reconstituted basement membrane gel, “matrigel” (prepared from an extract of extracellular matrix of the murine Engelbreth‐Holm‐Swarm sarcoma), and observed that the cells adhered firmly, remained rounded as single cells or clusters, and maintained liver‐specific gene expression for more than 1 week in vitro. Hepatocytes on matrigel secreted substantially higher amounts of albumin, transferrin, haptoglobin, and hemopexin, contained higher amounts of glutathione peroxidase, and, as judged by Northern blot analyses of extracted cellular RNA, expressed increased amounts of mRNA for the liver‐specific protein albumin (as compared with cells on vitrogen). In cultures treated with phenobarbital, cytochrome P‐450b, and cytochrome P‐450e, mRNAs and proteins were barely detectable in cells on Vitrogen but were induced to levels similar to those in the liver in vivo in matrigel cultures. Likewise, the use of matrigel greatly enhanced the induction of mRNA and protein for P‐450c by 3‐methylcholanthrene and for P‐450p by steroidal and nonsteroidal inducers. However, neither substratum permitted induction of P‐450d by 3‐methylcholanthrene, suggesting that the effects of matrigel are selective even for expression in liver of members of the superfamily of cytochrome P‐450 genes. Within 5 days in cultures on Vitrogen, hepatocytes expressed detectable amounts of fetal liver aldolase activity and also mRNA for vimentin and type I collagen, each considered a phenotypic change reflecting hepatocyte “dedifferentiation.” None of these was present in cells on matrigel. Responsiveness to mitogenic stimuli, as judged by incorporation of 3H‐thymidine into DNA, was also decreased in hepatocytes cultured on matrigel. Finally, there was a remarkable increase in the levels of mRNAs for the cytoskeleton proteins actin and tubulin in hepatocytes on both matrices during the first 2 days in culture. However, the continuously flattening hepatocytes on Vitrogen maintained substantially higher levels of cytoskeleton mRNA over time in culture than did the rounded cells on matrigel. We conclude that hepatocytes cultured on matrigel, as opposed to the standard collagen, exhibit remarkably enhanced expression of many liver‐specific functions.

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Schuetz EG, Li D, Omiecinski CJ, Muller‐Eberhard U, Kleinman HK, Elswick B et al. Regulation of gene expression in adult rat hepatocytes cultured on a basement membrane matrix. Journal of Cellular Physiology. 1988 Jan 1;134(3):309-323. https://doi.org/10.1002/jcp.1041340302