Go to JCI Insight
  • About
  • Editors
  • Consulting Editors
  • For authors
  • Alerts
  • Advertising/recruitment
  • Subscribe
  • Contact
  • Current Issue
  • Past Issues
  • By specialty
    • COVID-19
    • Cardiology
    • Gastroenterology
    • Immunology
    • Metabolism
    • Nephrology
    • Neuroscience
    • Oncology
    • Pulmonology
    • Vascular biology
    • All ...
  • Videos
    • Conversations with Giants in Medicine
    • Author's Takes
  • Reviews
    • View all reviews ...
    • 100th Anniversary of Insulin's Discovery (Jan 2021)
    • Hypoxia-inducible factors in disease pathophysiology and therapeutics (Oct 2020)
    • Latency in Infectious Disease (Jul 2020)
    • Immunotherapy in Hematological Cancers (Apr 2020)
    • Big Data's Future in Medicine (Feb 2020)
    • Mechanisms Underlying the Metabolic Syndrome (Oct 2019)
    • Reparative Immunology (Jul 2019)
    • View all review series ...
  • Viewpoint
  • Collections
    • Recently published
    • In-Press Preview
    • Commentaries
    • Concise Communication
    • Editorials
    • Viewpoint
    • Top read articles
  • Clinical Medicine
  • JCI This Month
    • Current issue
    • Past issues

  • Current issue
  • Past issues
  • Specialties
  • Reviews
  • Review series
  • Conversations with Giants in Medicine
  • Author's Takes
  • Recently published
  • In-Press Preview
  • Commentaries
  • Concise Communication
  • Editorials
  • Viewpoint
  • Top read articles
  • About
  • Editors
  • Consulting Editors
  • For authors
  • Alerts
  • Advertising/recruitment
  • Subscribe
  • Contact
Top
  • View PDF
  • Download citation information
  • Send a letter
  • Share this article
  • Terms of use
  • Standard abbreviations
  • Need Help? E-mail the JCI
  • Top
  • Abstract
  • Version history
  • Article usage
  • Citations to this article

Advertisement

Research Article Free access | 10.1172/JCI117349

Absorption of pathogenic autoantibodies by the extracellular domain of pemphigus vulgaris antigen (Dsg3) produced by baculovirus.

M Amagai, T Hashimoto, N Shimizu, and T Nishikawa

Department of Dermatology, Keio University School of Medicine, Tokyo, Japan.

Find articles by Amagai, M. in: JCI | PubMed | Google Scholar

Department of Dermatology, Keio University School of Medicine, Tokyo, Japan.

Find articles by Hashimoto, T. in: JCI | PubMed | Google Scholar

Department of Dermatology, Keio University School of Medicine, Tokyo, Japan.

Find articles by Shimizu, N. in: JCI | PubMed | Google Scholar

Department of Dermatology, Keio University School of Medicine, Tokyo, Japan.

Find articles by Nishikawa, T. in: JCI | PubMed | Google Scholar

Published July 1, 1994 - More info

Published in Volume 94, Issue 1 on July 1, 1994
J Clin Invest. 1994;94(1):59–67. https://doi.org/10.1172/JCI117349.
© 1994 The American Society for Clinical Investigation
Published July 1, 1994 - Version history
View PDF
Abstract

Pemphigus vulgaris (PV) is an autoimmune blistering disease, in which autoantibodies against PV antigen (PVA or Dsg3) play a pathogenic role in inducing blister formation. Bacterial fusion proteins of PVA failed to absorb pathogenic autoantibodies from PV patients' sera probably because they did not represent the proper conformation. Therefore, a chimeric protein, PVIg, consisting of the whole extracellular domain of PVA and the constant region of human IgG1, was produced in either in COS7 or in insect Sf9 eucaryotic cells. Both PVIg-COS7 and PVIg-Sf9 were recognized by all of the 35 PV sera tested, but not by any of 10 pemphigus foliaceus (PF), 16 Brazilian PF, 10 bullous pemphigoid, or five normal control sera. Incubation of PV patients' sera with PVIg-Sf9 removed heterogeneous autoantibodies and significantly reduced their immunofluorescence titers on normal human epidermis, although PVIg-Sf9 did not affect the titers of PF sera at all. Furthermore, PVIg-Sf9 absorbed pathogenic autoantibodies from patients' sera and prevented gross blister formation in a neonatal mouse model for pemphigus. These results indicate that this baculovirus product has the proper conformation of the authentic PVA and that its conformation is important in pathogenicity of pemphigus.

Images.

Browse pages

Click on an image below to see the page. View PDF of the complete article

icon of scanned page 59
page 59
icon of scanned page 60
page 60
icon of scanned page 61
page 61
icon of scanned page 62
page 62
icon of scanned page 63
page 63
icon of scanned page 64
page 64
icon of scanned page 65
page 65
icon of scanned page 66
page 66
icon of scanned page 67
page 67
Version history
  • Version 1 (July 1, 1994): No description

Article tools

  • View PDF
  • Download citation information
  • Send a letter
  • Share this article
  • Terms of use
  • Standard abbreviations
  • Need Help? E-mail the JCI

Metrics

  • Article usage
  • Citations to this article

Go to

  • Top
  • Abstract
  • Version history
Advertisement
Advertisement
Follow JCI:
Copyright © 2021 American Society for Clinical Investigation
ISSN: 0021-9738 (print), 1558-8238 (online)

Sign up for email alerts