Role of tumor necrosis factor-α and nitric oxide in luteolysis in cattle

Dariusz J. Skarzynski, Jerzy J. Jaroszewski, Kiyoshi Okuda

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Although prostaglandin (PG) F is known to be a principal luteolytic factor, its action on the bovine corpus luteum (CL) is mediated by other intra-ovarian factors. Tumor necrosis factor-α (TNFα) and its specific receptors are present in the bovine CL with the highest expressions at luteolysis. TNFα in combination with interferon-γ reduced progesterone (P4) secretion, increased PGF and leukotriene C4 (LTC4) production, and induced apoptosis of the luteal cells in vitro. Low concentrations of TNFα caused luteolysis, which resulted in a decreased level of P4, and increased levels of PGF , LTC4 and nitrite/nitrate (stable metabolites of nitric oxide-NO) in the blood. Inhibition of local NO production counteracts spontaneous and PGF-induced luteolysis. Therefore, NO is a likely candidate for the molecule that mediates PGF and TNFα actions during luteolysis. Both PGF and TNFα increase NO concentrations in blood, and stimulate NO synthase expression on protein level in the bovine CL cells. NO stimulates PGF and LTC4 secretion, inhibits P4 production and reduces the number of viable luteal cells. TNFα and NO induce apoptotic death of the CL by modulating expression of bcl-2 family genes and by stimulating expression and activity of caspase-3. The above findings indicate that TNFα and NO play crucial roles in functional and structural luteolysis in cattle.

Original languageEnglish
Pages (from-to)340-346
Number of pages7
JournalDomestic Animal Endocrinology
Volume29
Issue number2
DOIs
Publication statusPublished - Aug 2005

Fingerprint

Luteolysis
luteolysis
tumor necrosis factors
Dinoprost
nitric oxide
Nitric Oxide
Tumor Necrosis Factor-alpha
Corpus Luteum
corpus luteum
cattle
Leukotriene C4
leukotrienes
Luteal Cells
luteal cells
secretion
bcl-2 Genes
blood
Prostaglandins F
caspase-3
interferons

Keywords

  • Corpus luteum
  • Luteolysis
  • Nitric oxide
  • Tumor necrosis factor-α

ASJC Scopus subject areas

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

Cite this

Role of tumor necrosis factor-α and nitric oxide in luteolysis in cattle. / Skarzynski, Dariusz J.; Jaroszewski, Jerzy J.; Okuda, Kiyoshi.

In: Domestic Animal Endocrinology, Vol. 29, No. 2, 08.2005, p. 340-346.

Research output: Contribution to journalArticle

Skarzynski, Dariusz J. ; Jaroszewski, Jerzy J. ; Okuda, Kiyoshi. / Role of tumor necrosis factor-α and nitric oxide in luteolysis in cattle. In: Domestic Animal Endocrinology. 2005 ; Vol. 29, No. 2. pp. 340-346.
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