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Collagen pp 189–201Cite as

Procollagen C-Proteinase Enhancer 1 (PCPE-1) in Liver Fibrosis

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Part of the book series: Methods in Molecular Biology ((MIMB,volume 1944))

Abstract

Fibrosis is characterized by excessive deposition of collagen and additional extracellular matrix (ECM) components in response to chronic injuries. Liver fibrosis often results from chronic hepatitis C virus infection and alcohol abuse that can deteriorate to cirrhosis and liver failure. Current noninvasive diagnostic methods of liver fibrosis are limited in their ability to detect and differentiate between early and intermediate stages of fibrosis. New biomarkers of fibrosis that reflect ECM turnover are therefore badly needed. Procollagen C-proteinase enhancer 1 (PCPE-1), a connective tissue glycoprotein that functions as a positive regulator of C-terminal procollagen processing and subsequent collagen fibril assembly, is a promising candidate. Its tissue distribution and expression profile overlap those of collagen, and its expression in fibrosis is upregulated in parallel to the increase in collagen expression. The potential of PCPE-1 as a biomarker of liver fibrosis was recently established using a CCl4 mouse model of liver fibrosis by showing that the increase in collagen and PCPE-1 content in the fibrotic mouse liver was reflected by elevated plasma levels of PCPE-1. This was achieved using a newly developed highly sensitive, specific, accurate, and reproducible ELISA for mouse PCPE-1, which is based on commercially available antibodies and is offered as a new research tool in the field. A similar ELISA test was developed for human PCPE-1, and preliminary results with plasma from liver fibrosis patients revealed increased plasma concentrations of PCPE-1 in some patients. The protocols of both ELISA tests are outlined herein in great detail to permit their application by any laboratory with similar interests.

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Author information

Author notes

  1. Eyal Hassoun

    Present address: Clinical Biochemistry and Pharmacology Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel

Authors and Affiliations

  1. Maurice and Gabriela Goldschleger Eye Research Institute, Tel Aviv University Sackler Faculty of Medicine, Sheba Medical Center, Tel-Hashomer, Israel

    Efrat Kessler

  2. Clinical Biochemistry and Pharmacology Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel

    Efrat Kessler

Authors
  1. Efrat Kessler
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  2. Eyal Hassoun
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Corresponding author

Correspondence to Efrat Kessler .

Editor information

Editors and Affiliations

  1. Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel

    Irit Sagi

  2. Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel

    Nikolaos A. Afratis

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Kessler, E., Hassoun, E. (2019). Procollagen C-Proteinase Enhancer 1 (PCPE-1) in Liver Fibrosis. In: Sagi, I., Afratis, N. (eds) Collagen. Methods in Molecular Biology, vol 1944. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-9095-5_14

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  • DOI: https://doi.org/10.1007/978-1-4939-9095-5_14

  • Published:

  • Publisher Name: Humana Press, New York, NY

  • Print ISBN: 978-1-4939-9094-8

  • Online ISBN: 978-1-4939-9095-5

  • eBook Packages: Springer Protocols

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