eprintid: 23052 rev_number: 24 userid: 1419 dir: disk0/00/02/30/52 datestamp: 2014-09-23 14:48:49 lastmod: 2021-06-25 01:55:09 status_changed: 2014-09-23 14:48:49 type: article metadata_visibility: show item_issues_count: 0 eprint_status: archive creators_name: Epperly, MW creators_name: Franicola, D creators_name: Shields, D creators_name: Rwigema, JC creators_name: Stone, B creators_name: Zhang, X creators_name: Mcbride, W creators_name: Georges, G creators_name: Wipf, P creators_name: Greenberger, JS creators_email: creators_email: creators_email: creators_email: creators_email: creators_email: xichen@pitt.edu creators_email: creators_email: creators_email: pwipf@pitt.edu creators_email: joelg@pitt.edu creators_id: creators_id: creators_id: creators_id: creators_id: creators_id: XICHEN creators_id: creators_id: creators_id: PWIPF creators_id: JOELG title: Screening of antimicrobial agents for in vitro radiation protection and mitigation capacity, including those used in supportive care regimens for bone marrow transplant recipients ispublished: pub divisions: sch_as_chemistry full_text_status: public abstract: Antibiotic and antifungal agents used in supportive care regimens for bone marrow transplantation recipients contribute to a significant dose-modifying effect of otherwise lethal total body irradiation. To determine whether drugs used in supportive care and other commonly used antibiotics such as tetracycline function as radiation protectors or damage mitigators in vitro, 13 drugs were tested for radiation protection and radiation damage mitigation of 32D cl 3 hematopoietic progenitor cells in clonagenic survival curves in vitro. Antibiotic/Antifungal agents including cilastatin, amikacin, ceftazidine, vancomycin, tetracycline, doxycycline, ciprofloxacin, metronidazole, methacycline, minocycline, meclocycline, Oxytetracycline and rolitetracycline were added in 1, 10, or 100 micromolar concentrations to murine interleukin-3-dependent hematopoietic progenitor cell line 32D cl 3 cells either before or after irradiation of 0 to 8 Gy. Control irradiated 32D cl 3 cells showed radiosensitivity comparable to freshly explanted mouse marrow hematopoietic progenitor cells (D0 1.1 ±0.1 Gy, Ñ 15±0.4). Positive control GS-nitroxide JP4-039 (known radiation mitigator) treated 32D cl 3 cells were radioresistant (D0 1.2±0.1, Ñ 5.8±2.4 (p=0.009)). Of the 13 drugs tested, tetracycline was found to be a significant radiation mitigator (D0 0.9±0.1, Ñ 13.9±0.4 (p=0.0027)). Thus, the radiation dose-modifying effect of some antibiotics, but not those currently used in the supportive care (antibiotic/antifungal regimens) for marrow transplant patients, may act as radiation damage mitigators for hematopoietic cells as well as decreasing the growth and inflammatory response to microbial pathogens. date: 2010-01-01 date_type: published publication: In Vivo volume: 24 number: 1 pagerange: 9 - 19 refereed: TRUE issn: 0258-851X other_id: NLM NIHMS269606 other_id: NLM PMC3039923 pmcid: PMC3039923 pmid: 20133970 mesh_headings: Animals mesh_headings: Anti-Bacterial Agents--pharmacology mesh_headings: Antifungal Agents--pharmacology mesh_headings: Bone Marrow Transplantation mesh_headings: Cell Line mesh_headings: Cell Survival--drug effects mesh_headings: Cell Survival--radiation effects mesh_headings: Dose-Response Relationship, Radiation mesh_headings: Hematopoietic Stem Cells--drug effects mesh_headings: Hematopoietic Stem Cells--pathology mesh_headings: Hematopoietic Stem Cells--radiation effects mesh_headings: Mice mesh_headings: Radiation Injuries, Experimental--pathology mesh_headings: Radiation Injuries, Experimental--prevention & control mesh_headings: Radiation-Protective Agents--pharmacology chemical_names: Anti-Bacterial Agents chemical_names: Antifungal Agents chemical_names: Radiation-Protective Agents citation: Epperly, MW and Franicola, D and Shields, D and Rwigema, JC and Stone, B and Zhang, X and Mcbride, W and Georges, G and Wipf, P and Greenberger, JS (2010) Screening of antimicrobial agents for in vitro radiation protection and mitigation capacity, including those used in supportive care regimens for bone marrow transplant recipients. In Vivo, 24 (1). 9 - 19. ISSN 0258-851X document_url: http://d-scholarship-dev.library.pitt.edu/23052/1/licence.txt