https://scholars.lib.ntu.edu.tw/handle/123456789/506305
標題: | Head and neck irradiation modulates pharmacokinetics of 5-fluorouracil and cisplatin | 作者: | Hsieh C.-H. Hou M.-L. Chiang M.-H. Tai H.-C. Tien H.-J. LI-YING WANG Tsai T.-H. Chen Y.-J. |
公開日期: | 2013 | 卷: | 11 | 期: | 1 | 起(迄)頁: | 231 | 來源出版物: | Journal of Translational Medicine | 摘要: | Background: 5-fluorouracil (5-FU) and cisplatin (CDDP) are used to enhance radiotherapy (RT) effect for head and neck (HN) cancers. However, the effect of local RT on systemic chemotherapeutics remains unclear. Here, we evaluated the influence of HN irradiation on the pharmacokinetics (PK) of 5-FU and CDDP in rats as experimental model. Methods: The radiation dose distributions of HN cancer patients were determined for the low dose areas, which are generously deposited around the target volume. Two Gy and 0.5?Gy RT were selected. Single-fraction radiation was delivered to the HN of Sprague-Dawley rats. 5-FU at 100?mg/kg or CDDP at 5?mg/kg was intravenously infused 24?hours after radiation. Results: Radiation at 2?Gy reduced the area under the plasma concentration vs. time curve (AUC) of 5-FU and CDDP by 16% and 29% compared to non-irradiated controls, respectively. This was accompanied by incremental total plasma clearance values. Intriguingly, low dose radiation at 0.5?Gy resulted in a similar pharmacokinetic profile, with a 17% and 33% reduction in the AUC of 5-FU and CDDP, respectively. The changes in AUC of bile, which increases with RT, were opposite to AUC of plasma for both drugs. Conclusions: The local HN RT could modulate systemic PK of 5-FU and CDDP in rats. This unexpected RT-PK phenomena may provide a reference for adjustment of drug administration and is worthy of further investigation.Trial registration: ClinicalTrials.gov ID NCT01755585 and NCT01609114. ? 2013 Hsieh et al.; licensee BioMed Central Ltd. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84884564730&doi=10.1186%2f1479-5876-11-231&partnerID=40&md5=7c260576975956a5ad57041f56676900 https://scholars.lib.ntu.edu.tw/handle/123456789/506305 |
ISSN: | 1479-5876 | DOI: | 10.1186/1479-5876-11-231 | SDG/關鍵字: | cisplatin; fluorouracil; animal experiment; animal model; area under the curve; article; cancer patient; controlled study; distribution volume; drug elimination; drug half life; experimental rat; head and neck cancer; head and neck radiation; male; maximum plasma concentration; mean residence time; nonhuman; partial body radiation; plasma clearance; radiation dose distribution; radiation dose reduction; rat; Sprague Dawley rat; Animals; Area Under Curve; Bile; Cisplatin; Fluorouracil; Head and Neck Neoplasms; Male; Radiometry; Rats; Rats, Sprague-Dawley; Tomography, X-Ray Computed |
顯示於: | 物理治療學系所 |
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