Document Detail


Early alterations in cytokine expression in adult compared to developing lung in mice after radiation exposure.
MedLine Citation:
PMID:  20334525     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To assess early changes in the lung after low-dose radiation exposure that may serve as targets for mitigation of lung injury in the aftermath of a terrorist event, we analyzed cytokine expression after irradiation. Adult mice were studied after whole-lung or total-body irradiation. Mouse pups of different ages were also investigated after total-body irradiation. mRNA abundance was analyzed in tissue and plasma, and pathological changes were assessed. In lung tissue, dose-related changes were seen in IL1B, IL1R2 and CXCR2 mRNA expression at 1 and 6 h after irradiation, concurrent with increases in plasma protein levels of KC/CXCL1 and IL6. However, in the pups, changes in IL1 abundance were not detected until 28 days of age, coincident with the end of postnatal lung growth, although apoptosis was detected at all ages. In conclusion, although cytokines were expressed after low doses of radiation, their role in the progression of tissue response is yet to be determined. They may be candidates for use in marker-based biodosimetry. However, the lack of cytokine induction in early life suggests that different end points (and mitigating treatments) may be required for children.
Authors:
Carl J Johnston; Eric Hernady; Christina Reed; Sally W Thurston; Jacob N Finkelstein; Jacqueline P Williams
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Radiation research     Volume:  173     ISSN:  1938-5404     ISO Abbreviation:  Radiat. Res.     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-03-25     Completed Date:  2010-04-22     Revised Date:  2012-10-09    
Medline Journal Info:
Nlm Unique ID:  0401245     Medline TA:  Radiat Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  522-35     Citation Subset:  IM; S    
Affiliation:
Departments of Pediatrics and Neonatology, University of Rochester Medical Center, Rochester, New York 14642, USA.
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MeSH Terms
Descriptor/Qualifier:
Aging / physiology,  radiation effects*
Animals
Cytokines / metabolism*
Dose-Response Relationship, Radiation
Female
Gene Expression Regulation, Developmental / physiology*,  radiation effects
Lung / growth & development,  metabolism*,  radiation effects*
Male
Mice
Mice, Inbred C57BL
Radiation Dosage
Whole-Body Irradiation*
Grant Support
ID/Acronym/Agency:
5U19 AI06773-04/AI/NIAID NIH HHS; ES01247/ES/NIEHS NIH HHS; P30 ES001247/ES/NIEHS NIH HHS; P30 ES001247-230097/ES/NIEHS NIH HHS; P30 ES001247-240097/ES/NIEHS NIH HHS; P30 ES001247-24S10097/ES/NIEHS NIH HHS; P30 ES001247-250097/ES/NIEHS NIH HHS; P30 ES001247-25S10097/ES/NIEHS NIH HHS; P30 ES001247-319019/ES/NIEHS NIH HHS; P30 ES001247-329019/ES/NIEHS NIH HHS; P30 ES001247-339019/ES/NIEHS NIH HHS; P30 ES001247-349019/ES/NIEHS NIH HHS; P30 ES001247-359019/ES/NIEHS NIH HHS; U19 AI067733/AI/NIAID NIH HHS; U19 AI067733-040002/AI/NIAID NIH HHS
Chemical
Reg. No./Substance:
0/Cytokines
Comments/Corrections

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