Hematopoietic prostaglandin D2 synthase in the chicken Harderian gland

T. R. Scott, A. R. Messersmith, W. J. McCrary, J. L. Herlong, Shane C Burgess

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The Harderian gland (HG), a sero-mucous secreting organ in the eye orbit, has long been recognized as immunologically important in chickens. During experimentation to characterize immune components of the gland, proteomics analysis revealed the presence of hematopoietic prostaglandin D synthase (H-PGDS). Extraction of total RNA followed by RT-PCR produced cDNA of 597 base pairs. DNA sequencing revealed nucleic acid and predicted amino acid sequences that were 99% aligned with the one published sequence for chicken H-PGDS of the spleen. Alignment with murine, rat, and human H-PGDS were 69, 69, and 66%, respectively. Ocular vaccination of chickens with a Newcastle Disease/Infectious Bronchitis vaccine (Mass.-Ark. Strain) induced an increase in H-PGDS expression determined by real-time PCR. Furthermore, immunohistochemistry of frozen HG sections showed positive stained cells for both H-PGDS and mast cell tryptase in the sub-epithelial cell layers of the HG ducts. Based on the potent vasoactive role of PGD2, it appears that the chicken HG is a site of active mucosal immunity partially mediated by PGD2 synthesized by H-PGDS in the gland.

Original languageEnglish (US)
Pages (from-to)295-306
Number of pages12
JournalVeterinary Immunology and Immunopathology
Volume108
Issue number3-4
DOIs
StatePublished - Dec 15 2005
Externally publishedYes

Fingerprint

prostaglandin R2 D-isomerase
Harderian Gland
Chickens
chickens
Prostaglandin D2
eyes
Active Immunity
tryptase
Newcastle Disease
infectious bronchitis
mucosal immunity
Tryptases
Mucosal Immunity
Bronchitis
orbits
Newcastle disease
Orbit
mast cells
DNA Sequence Analysis
Base Pairing

Keywords

  • Class-Sigma GST
  • H-PGD synthase
  • Harderian gland
  • PGD
  • Prostaglandin

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Immunology
  • veterinary(all)

Cite this

Hematopoietic prostaglandin D2 synthase in the chicken Harderian gland. / Scott, T. R.; Messersmith, A. R.; McCrary, W. J.; Herlong, J. L.; Burgess, Shane C.

In: Veterinary Immunology and Immunopathology, Vol. 108, No. 3-4, 15.12.2005, p. 295-306.

Research output: Contribution to journalArticle

Scott, T. R. ; Messersmith, A. R. ; McCrary, W. J. ; Herlong, J. L. ; Burgess, Shane C. / Hematopoietic prostaglandin D2 synthase in the chicken Harderian gland. In: Veterinary Immunology and Immunopathology. 2005 ; Vol. 108, No. 3-4. pp. 295-306.
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