Abstract
Surfactant protein-D (SP-D), a member of the "collectin" family, has been shown to play a role in innate immunity through modulation of inflammation and clearance of organisms. The role of SP-D in host defense against Pneumocystis carinii pneumonia was assessed using SP-D knockout (KO) mice. When inoculated with P. carinii, both wild-type (wt) and SP-D KO mice required CD4 cell depletion to develop infection. In CD4 cell-depleted models, 2 weeks after infection with P. carinii, SP-D KO mice developed increased intensity of infection, compared with wt mice, despite higher lung-inflammation scores and increased amounts of alveolar inflammatory cells. The increased inflammation seen in SP-D KO mice was accompanied by increases in lung weight, expression of inducible nitric oxide (NO) synthase, total NO levels, and 3-nitrotyrosine levels in lung tissue. These results indicate that SP-D plays a role in host defense against P. carinii in vivo by modulating clearance of organisms, lung inflammation, and metabolism of NO.
| Original language | English |
|---|---|
| Pages (from-to) | 1528-1539 |
| Number of pages | 12 |
| Journal | Journal of Infectious Diseases |
| Volume | 189 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 15 Apr 2004 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Public Health, Environmental and Occupational Health
- Immunology
Cite this
Delayed clearance of Pneumocystis carinii infection, increased inflammation, and altered nitric oxide metabolism in lungs of surfactant protein-D knockout mice. / Atochina, Elena Nikolaevna; Gow, Andrew J.; Beck, James M.; Haczku, Angela; Inch, Adam; Kadire, Helchem; Tomer, Yaniv; Davis, Christine; Preston, Angela M.; Poulain, Francis; Hawgood, Samuel; Beers, Michael F.
In: Journal of Infectious Diseases, Vol. 189, No. 8, 15.04.2004, p. 1528-1539.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Delayed clearance of Pneumocystis carinii infection, increased inflammation, and altered nitric oxide metabolism in lungs of surfactant protein-D knockout mice
AU - Atochina, Elena Nikolaevna
AU - Gow, Andrew J.
AU - Beck, James M.
AU - Haczku, Angela
AU - Inch, Adam
AU - Kadire, Helchem
AU - Tomer, Yaniv
AU - Davis, Christine
AU - Preston, Angela M.
AU - Poulain, Francis
AU - Hawgood, Samuel
AU - Beers, Michael F.
PY - 2004/4/15
Y1 - 2004/4/15
N2 - Surfactant protein-D (SP-D), a member of the "collectin" family, has been shown to play a role in innate immunity through modulation of inflammation and clearance of organisms. The role of SP-D in host defense against Pneumocystis carinii pneumonia was assessed using SP-D knockout (KO) mice. When inoculated with P. carinii, both wild-type (wt) and SP-D KO mice required CD4 cell depletion to develop infection. In CD4 cell-depleted models, 2 weeks after infection with P. carinii, SP-D KO mice developed increased intensity of infection, compared with wt mice, despite higher lung-inflammation scores and increased amounts of alveolar inflammatory cells. The increased inflammation seen in SP-D KO mice was accompanied by increases in lung weight, expression of inducible nitric oxide (NO) synthase, total NO levels, and 3-nitrotyrosine levels in lung tissue. These results indicate that SP-D plays a role in host defense against P. carinii in vivo by modulating clearance of organisms, lung inflammation, and metabolism of NO.
AB - Surfactant protein-D (SP-D), a member of the "collectin" family, has been shown to play a role in innate immunity through modulation of inflammation and clearance of organisms. The role of SP-D in host defense against Pneumocystis carinii pneumonia was assessed using SP-D knockout (KO) mice. When inoculated with P. carinii, both wild-type (wt) and SP-D KO mice required CD4 cell depletion to develop infection. In CD4 cell-depleted models, 2 weeks after infection with P. carinii, SP-D KO mice developed increased intensity of infection, compared with wt mice, despite higher lung-inflammation scores and increased amounts of alveolar inflammatory cells. The increased inflammation seen in SP-D KO mice was accompanied by increases in lung weight, expression of inducible nitric oxide (NO) synthase, total NO levels, and 3-nitrotyrosine levels in lung tissue. These results indicate that SP-D plays a role in host defense against P. carinii in vivo by modulating clearance of organisms, lung inflammation, and metabolism of NO.
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U2 - 10.1086/383130
DO - 10.1086/383130
M3 - Article
VL - 189
SP - 1528
EP - 1539
JO - Journal of Infectious Diseases
JF - Journal of Infectious Diseases
SN - 0022-1899
IS - 8
ER -