Format

Send to

Choose Destination
Biochem Biophys Res Commun. 1995 Aug 15;213(2):600-7.

Endogenous interleukin 10 prevents apoptosis in macrophages during Salmonella infection.

Author information

1
Laboratory of Host Defense and Germfree Life, Nagoya University School of Medicine, Japan.

Abstract

To elucidate the biological roles of endogenous interleukin 10 (IL-10) in macrophage responses during bacterial infection, we examined in vitro effects of neutralizing IL-10 by anti-IL-10 monoclonal antibodies (mAb) on apoptosis of the peritoneal macrophages following Salmonella choleraesuis infection. Marked increments of TNF-alpha production were observed in the culture supernatant later than 6 h after in vitro culture with anti-IL-10 mAb. These macrophages succumbed to apoptosis at this stage accompanied by marked increment of IL-1 release, despite the expression of higher amount of endogenous heat shock protein 70, an inhibitor of TNF-alpha-mediated apoptosis. These results suggest that endogenous IL-10 plays an essential role in protection of Salmonella-infected macrophages from autocrine suicide caused by excessive production of TNF-alpha after killing of Salmonella.

PMID:
7646518
DOI:
10.1006/bbrc.1995.2174
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center