Accession Number : ADA606229


Title :   Ciprofloxacin Enhances Stress Erythropoiesis in Spleen and Increases Survival after Whole-Body Irradiation Combined with Skin-Wound Trauma


Descriptive Note : Journal article


Corporate Author : ARMED FORCES RADIOBIOLOGY RESEARCH INST BETHESDA MD


Personal Author(s) : Fukumoto, Risaku ; Burns, True M ; Kiang, Juliann G


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a606229.pdf


Report Date : 28 Feb 2014


Pagination or Media Count : 13


Abstract : Severe hematopoietic loss is one of the major therapeutic targets after radiation-combined injury (CI), a kind of injury resulting from radiation exposure combined with other traumas. In this study, we tested the use of ciprofloxacin (CIP) as a treatment, because of recently reported immunomodulatory effects against CI that may improve hematopoiesis. The CIP regimen was a daily, oral dose for 3 weeks, with the first dose 2 h after CI. CIP treatment improved 30-day survival in mice at 80% compared to 35% for untreated controls. Study of early changes in hematological parameters identified CI-induced progressive anemia by 10 days that CIP significantly ameliorated. CI induced erythropoietin (EPO) mRNA in kidney and protein in kidney and serum; CIP stimulated EPO mRNA expression. In spleens of CI mice, CIP induced bone morphogenetic protein 4 (BMP4) in macrophages with EPO receptors. Splenocytes from CIP-treated CI mice formed CD71+ colony-forming unit-erythroid significantly better than those from controls. Thus, CIP-mediated BMP4-dependent stress erythropoiesis may play a role in improving survival after CI.


Descriptors :   *DRUGS , *ERYTHROPOIESIS , *SPLEEN , *WHOLE BODY IRRADIATION , ANEMIAS , BODY WEIGHT , CYTOKINES , ERYTHROCYTES , ERYTHROPOIETINS , HEALING , PROTEINS , SKIN(ANATOMY) , SURVIVAL(GENERAL) , TRAUMA , WOUNDS AND INJURIES


Subject Categories : Anatomy and Physiology
      Medicine and Medical Research
      Radiobiology
      Pharmacology


Distribution Statement : APPROVED FOR PUBLIC RELEASE