Production of recombinant extracellular domains of canine desmoglein 1 (Dsg1) by baculovirus expression

Koji Nishifuji, Masayuki Amagai, Takeji Nishikawa, Toshiroh Iwasaki

Research output: Contribution to journalArticle

15 Citations (Scopus)


The aim of this study was to generate a recombinant protein to represent the entire extracellular domain of canine desmoglein 1 (Dsg1), a desmosomal cell-cell adhesion molecule, by the baculovirus expression system. Cotransfection of a baculovirus transfer vector containing the cDNA for the entire extracellular domain of canine Dsg1 with baculovirus DNA into insect cells resulted in the secretion of soluble canine Dsg1 into insect culture supernatants. Immunoreactivity of 11 human pemphigus foliaceus (PF) sera against the cell surface of canine keratinocytes was completely removed when the sera were preincubated with the canine Dsg1 baculoprotein. This recombinant canine Dsg1 produced by baculovirus shares the major epitopes of the authentic canine Dsg1 recognized by human PF sera, and will be useful in studying the molecular pathophysiological mechanisms in PF and impetigo in canine patients.

Original languageEnglish
Pages (from-to)177-182
Number of pages6
JournalVeterinary Immunology and Immunopathology
Issue number3-4
Publication statusPublished - 2003 Oct 15



  • Baculovirus expression
  • Desmoglein
  • Dog
  • Impetigo
  • Pemphigus

ASJC Scopus subject areas

  • Immunology
  • veterinary(all)

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