{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T16:30:16Z","timestamp":1785774616194,"version":"3.56.0"},"reference-count":50,"publisher":"American Society of Clinical Oncology (ASCO)","issue":"24","content-domain":{"domain":["ascopubs.org"],"crossmark-restriction":true},"short-container-title":["JCO"],"published-print":{"date-parts":[[2018,8,20]]},"abstract":"<jats:sec><jats:title>Purpose<\/jats:title><jats:p> This study examined an inflammatory biomarker, high-sensitivity C-reactive protein (hsCRP), in radiotherapy (RT)-induced early adverse skin reactions or toxicities in breast cancer. <\/jats:p><\/jats:sec><jats:sec><jats:title>Patients and Methods<\/jats:title><jats:p> Between 2011 and 2013, 1,000 patients with breast cancer who underwent RT were evaluated prospectively for skin toxicities through the National Cancer Institute\u2013funded Wake Forest University Community Clinical Oncology Program Research Base. Pre- and post-RT plasma hsCRP levels and Oncology Nursing Society skin toxicity criteria (0 to 6) were used to assess RT-induced skin toxicities. Multivariable logistic regression analyses were applied to ascertain the associations between hsCRP and RT-induced skin toxicities after adjusting for potential confounders. <\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p> The study comprised 623 white, 280 African American, 64 Asian\/Pacific Islander, and 33 other race patients; 24% of the patients were Hispanic, and 47% were obese. Approximately 42% and 15% of patients developed RT-induced grade 3+ and 4+ skin toxicities, respectively. The hsCRP levels differed significantly by race and body mass index but not by ethnicity. In multivariable analysis, grade 4+ skin toxicity was significantly associated with obesity (odds ratio [OR], 2.17; 95% CI, 1.41 to 3.34], post-RT hsCRP \u2265 4.11 mg\/L (OR, 1.61; 95% CI, 1.07 to 2.44), and both factors combined (OR, 3.65; 95% CI, 2.18 to 6.14). Above-median post-RT hsCRP (OR, 1.93; 95% CI, 1.03 to 3.63), and change in hsCRP (OR, 2.80; 95% CI, 1.42 to 5.54) were significantly associated with grade 4+ skin toxicity in nonobese patients. <\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p> This large prospective study is the first to our knowledge of hsCRP as an inflammatory biomarker in RT-induced skin toxicities in breast cancer. We demonstrate that nonobese patients with elevated RT-related change in hsCRP levels have a significantly increased risk of grade 4+ skin toxicity. The outcomes may help to predict RT responses and guide decision making. <\/jats:p><\/jats:sec>","DOI":"10.1200\/jco.2017.77.1790","type":"journal-article","created":{"date-parts":[[2018,7,10]],"date-time":"2018-07-10T19:59:59Z","timestamp":1531252799000},"page":"2473-2482","update-policy":"https:\/\/doi.org\/10.1200\/crossmark","source":"Crossref","is-referenced-by-count":45,"title":["Association Between Inflammatory Biomarker C-Reactive Protein and Radiotherapy-Induced Early Adverse Skin Reactions in a Multiracial\/Ethnic Breast Cancer Population"],"prefix":"10.1200","volume":"36","author":[{"given":"Jennifer J.","family":"Hu","sequence":"first","affiliation":[{"name":"Jennifer J. Hu and Cristiane Takita, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL; James J. Urbanic, University of California, San Diego, Encinitas, CA; L. Doug Case, Doris R. Brown, Carl D. Langefeld, Mark O. Lively, Glenn J. Lesser, and Edward G. 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