{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T16:01:35Z","timestamp":1775923295949,"version":"3.50.1"},"reference-count":34,"publisher":"The Company of Biologists","license":[{"start":{"date-parts":[[2021,5,18]],"date-time":"2021-05-18T00:00:00Z","timestamp":1621296000000},"content-version":"am","delay-in-days":1598,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["HHSN277201000046C"],"award-info":[{"award-number":["HHSN277201000046C"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:p>Molecular mechanisms underlying development of acute pneumonitis and\/or late fibrosis following thoracic irradiation remain poorly understood. Here we hypothesize that heterogeneity in disease progression and phenotypic expression of radiation-induced lung disease (RILD) across murine strains presents an opportunity to better elucidate mechanisms driving tissue response toward pneumonitis and\/or fibrosis. In this study distinct differences in disease progression were observed in age- and sex-matched CBA\/J, C57L\/J, and C57BL\/6J mice over 1 y after graded doses of whole-thorax lung irradiation (WTLI). Separately, comparison of gene expression profiles in lung tissue 24 h postexposure demonstrated &amp;gt;5,000 genes to be differentially expressed (P&amp;lt;0.01; &amp;gt;2-fold change) between strains with early versus late onset of disease. An immediate divergence in early tissue response between radiation-sensitive and -resistant strains was observed. In pneumonitis-prone C57L\/J mice, differentially expressed genes were enriched in proinflammatory pathways, whereas in fibrosis-prone C57BL\/6J mice, genes were enriched in pathways involved in purine and pyrimidine synthesis, DNA replication, and cell division. At 24 h post-WTLI, different patterns of cellular damage were observed at the ultrastructural level among strains but microscopic damage was not yet evident under light microscopy. These data point toward a fundamental difference in patterns of early pulmonary tissue response to WTLI, consistent with the macroscopic expression of injury manifesting weeks to months after exposure. Understanding the mechanisms underlying development of RILD may lead to more rational selection of therapeutic interventions to mitigate normal tissue damage.<\/jats:p>","DOI":"10.1242\/dmm.028217","type":"journal-article","created":{"date-parts":[[2017,1,27]],"date-time":"2017-01-27T01:20:13Z","timestamp":1485480013000},"source":"Crossref","is-referenced-by-count":14,"title":["Gene expression profiles among murine strains segregate with distinct differences in the progression of radiation-induced lung disease"],"prefix":"10.1242","author":[{"given":"Isabel L.","family":"Jackson","sequence":"first","affiliation":[{"name":"Division of Translational Radiation Sciences, Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD 21202, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fitsum","family":"Baye","sequence":"additional","affiliation":[{"name":"Department of Biostatistics, Indiana University School of Medicine and Richard M. 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