PMID- 22564604 OWN - NLM STAT- MEDLINE DCOM- 20120904 LR - 20131121 IS - 1873-2623 (Electronic) IS - 0041-1345 (Linking) VI - 44 IP - 4 DP - 2012 May TI - Effects of cyclosporine on oxidative stress in human bronchial epithelial cells. PG - 988-90 LID - 10.1016/j.transproceed.2012.01.091 [doi] AB - OBJECTIVES: Some of the airway complications relate to the use of cyclosporine (CsA), a potent agent widely used after organ transplantations. Several recent studies have demonstrated CsA treatment to induce reactive oxygen species (ROS). The present study was undertaken to investigate effects of CsA on production of ROS and antoxidant defense of airway cells using the human bronchial epithelial cell line BEAS-2B. METHODS: We measured biological antioxidant potential (BAP), as well as ROS and malondialdehyde levels in BEAS-2B cells after CsA treatment, using Free Radical Analytical System 4 kits (Diacron, Grosseto, Italy). ROS production was expressed as Carr Units as established by the manufacturer and BAP as mumol/2 x 10(5) cells; malondialdehyde, by the thiobarbituric acid assay. RESULTS: ROS production was increased in the BEAS-2B cells after CsA treatment: 73.5 at 0 (controls); 82.5 at 10; 84.0 at 30; 86.0 at 50; and 93.0 Carr Unit/2 x 10(5) cells at 100 mug/mL of CsA. The levels of BAP were 1821 at 0 (controls), 1698 at 10; 1653 at 30; 1366 at 50 mug/mL; and 1391 at 100 mug/mL. The levels of malondialdehyde were increased: 3.8 at 0 (controls); 3.4 at 10; 4.4 at 30; 4.2 at 50: and 5.0 nmol/10(6) cells at 100 mug/mL. CONCLUSIONS: Increased production of ROS and decreased BAP by CsA in BEAS-2B cells may increase malondialdehyde levels by radical-induced damage. CI - Copyright (c) 2012 Elsevier Inc. All rights reserved. FAU - Jeon, D S AU - Jeon DS AD - Institute for Medical Science, Keimyung University, Daegu, Korea. FAU - Ha, E Y AU - Ha EY FAU - Mun, K C AU - Mun KC LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Transplant Proc JT - Transplantation proceedings JID - 0243532 RN - 0 (Antioxidants) RN - 0 (Immunosuppressive Agents) RN - 0 (Reactive Oxygen Species) RN - 0 (Thiobarbituric Acid Reactive Substances) RN - 4Y8F71G49Q (Malondialdehyde) RN - 83HN0GTJ6D (Cyclosporine) SB - IM MH - Antioxidants/metabolism MH - Bronchi/cytology/*drug effects/metabolism MH - Cell Line MH - Cyclosporine/*pharmacology MH - Dose-Response Relationship, Drug MH - Epithelial Cells/*drug effects/metabolism MH - Humans MH - Immunosuppressive Agents/*pharmacology MH - Malondialdehyde/metabolism MH - Oxidative Stress/*drug effects MH - Reactive Oxygen Species/metabolism MH - Thiobarbituric Acid Reactive Substances/metabolism EDAT- 2012/05/09 06:00 MHDA- 2012/09/05 06:00 CRDT- 2012/05/09 06:00 PHST- 2012/05/09 06:00 [entrez] PHST- 2012/05/09 06:00 [pubmed] PHST- 2012/09/05 06:00 [medline] AID - S0041-1345(12)00126-1 [pii] AID - 10.1016/j.transproceed.2012.01.091 [doi] PST - ppublish SO - Transplant Proc. 2012 May;44(4):988-90. doi: 10.1016/j.transproceed.2012.01.091.