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The β-adrenoceptor agonist isoproterenol rescues acetaminophen-injured livers through increasing progenitor numbers by Wnt in mice.

Publication ,  Journal Article
Soeda, J; Mouralidarane, A; Ray, S; Novelli, M; Thomas, S; Roskams, T; Diehl, AM; Oben, JA
Published in: Hepatology
September 2014

UNLABELLED: Acetaminophen (APAP)-induced acute liver injury (AILI) is a major health problem. Accumulating evidence suggests that the sympathetic nervous system (SNS) regulates neuronal and hematopoietic progenitors. SNS signaling affects hepatic progenitor/oval cells (HPCs) and β-adrenoceptor agonism will expand HPCs to reduce AILI. Dopamine β-hydroxylase-deficient mice (Dbh-/-), lacking catecholamine SNS neurotransmitters, isolated HPCs, and immature ductular 603B cells were initially used to investigate SNS involvement in HPC physiology. Subsequently, control mice were treated with APAP (350 mg/kg) followed by the β-adrenoceptor agonist, isoproterenol (ISO), or the β-adrenoceptor antagonist, propranolol. Mechanistic studies examined effects of non-SNS HPC expansion on AILI, involvement of the canonical Wnt/β-catenin pathway (CWP) in the action of ISO on HPC expansion and comparison of ISO with the current standard of care, N-acetylcysteine (NAC). Dbh-/- mice lacking catecholamines had low HPC numbers, reconstituted by ISO. In vitro, ISO-induced proliferation of 603B cells was CWP dependent. In control mice, AILI raised HPC numbers, further increased by ISO, with attenuation of liver injury. Delayed administration of NAC did not, but delayed ISO did, reverse AILI. Propranolol worsened AILI. AILI activated the CWP, and ISO enhanced Wnt-ligand production. HPCs were the major source of Wnt ligands. Recombinant Wnt3a and ISO-603B-conditioned media, but not ISO alone, protected isolated hepatocytes from death, reversed by DKK1-a Wnt antagonist. Additionally, tumor-associated weak inducer of apoptosis expanded HPCs and protected against AILI. Furthermore, allotransplantation of HPCs from APAP+ISO-treated mice to other APAP-injured mice improved AILI, an effect antagonized by DKK1. CONCLUSION: SNS catecholamines expand HPCs, which are both targets and sources of Wnt ligands. Hepatoprotection by ISO is mediated by para- and autocrine effects of Wnt signaling. ISO represents novel pharmacotherapy for AILI.

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Published In

Hepatology

DOI

EISSN

1527-3350

Publication Date

September 2014

Volume

60

Issue

3

Start / End Page

1023 / 1034

Location

United States

Related Subject Headings

  • Wnt Proteins
  • Sympathetic Nervous System
  • Stem Cells
  • Mice, Inbred C57BL
  • Mice
  • Male
  • Liver
  • Isoproterenol
  • Gastroenterology & Hepatology
  • Drug Evaluation, Preclinical
 

Citation

APA
Chicago
ICMJE
MLA
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Soeda, J., Mouralidarane, A., Ray, S., Novelli, M., Thomas, S., Roskams, T., … Oben, J. A. (2014). The β-adrenoceptor agonist isoproterenol rescues acetaminophen-injured livers through increasing progenitor numbers by Wnt in mice. Hepatology, 60(3), 1023–1034. https://doi.org/10.1002/hep.27266
Soeda, Junpei, Angelina Mouralidarane, Shuvra Ray, Marco Novelli, Steven Thomas, Tania Roskams, Anna Mae Diehl, and Jude A. Oben. “The β-adrenoceptor agonist isoproterenol rescues acetaminophen-injured livers through increasing progenitor numbers by Wnt in mice.Hepatology 60, no. 3 (September 2014): 1023–34. https://doi.org/10.1002/hep.27266.
Soeda J, Mouralidarane A, Ray S, Novelli M, Thomas S, Roskams T, et al. The β-adrenoceptor agonist isoproterenol rescues acetaminophen-injured livers through increasing progenitor numbers by Wnt in mice. Hepatology. 2014 Sep;60(3):1023–34.
Soeda, Junpei, et al. “The β-adrenoceptor agonist isoproterenol rescues acetaminophen-injured livers through increasing progenitor numbers by Wnt in mice.Hepatology, vol. 60, no. 3, Sept. 2014, pp. 1023–34. Pubmed, doi:10.1002/hep.27266.
Soeda J, Mouralidarane A, Ray S, Novelli M, Thomas S, Roskams T, Diehl AM, Oben JA. The β-adrenoceptor agonist isoproterenol rescues acetaminophen-injured livers through increasing progenitor numbers by Wnt in mice. Hepatology. 2014 Sep;60(3):1023–1034.
Journal cover image

Published In

Hepatology

DOI

EISSN

1527-3350

Publication Date

September 2014

Volume

60

Issue

3

Start / End Page

1023 / 1034

Location

United States

Related Subject Headings

  • Wnt Proteins
  • Sympathetic Nervous System
  • Stem Cells
  • Mice, Inbred C57BL
  • Mice
  • Male
  • Liver
  • Isoproterenol
  • Gastroenterology & Hepatology
  • Drug Evaluation, Preclinical