Document Detail

Chromosomal radiosensitivity in patients with multiple sclerosis.
MedLine Citation:
PMID:  23994714     Owner:  NLM     Status:  Publisher    
Multiple sclerosis is a clinically heterogeneous autoimmune disease leading to severe neurological disability. Although during the last years many disease-modifying agents as treatment options for multiple sclerosis have been made available, their mechanisms of action are still not fully determined. In the present study radiosensitivity in lymphocytes of patients with relapsing-remitting multiple sclerosis, secondary progressive multiple sclerosis and healthy controls was investigated. Whole blood cultures from multiple sclerosis patients and healthy controls were used to analyse the spontaneous and radiation-induced micronuclei in binucleated lymphocytes. A subgroup of patients with relapsing-remitting multiple sclerosis was treated with immunomodulatory agents, interferon β or glatiramer acetate. The secondary progressive multiple sclerosis patients group was not receiving any treatment. Our results reveal that the basal DNA damage was not different between relapsing-remitting and secondary progressive multiple sclerosis patients, and healthy controls. No differences between gamma-irradiation induced micronuclei frequencies in binucleated cells from relapsing-remitting and secondary progressive multiple sclerosis patients, and healthy controls were found either. Nevertheless, when we compared the radiation induced DNA damage in binucleated cells from healthy individuals with the whole group of patients, a reduction in the frequency of micronuclei was obtained in the patients group. Induced micronuclei yield was significantly lower in the irradiated samples from treated relapsing-remitting multiple sclerosis patients than in healthy controls and relapsing-remitting not treated patients. Intrinsic sensitivity of lymphocytes subpopulations to the apoptotic effect of immunomodulatory treatment could be responsible for this result.
Maria Milenkova; Ivan Milanov; Ksenia Kmetska; Sofia Deleva; Ljubomira Popova; Valeria Hadjidekova; Violeta Groudeva; Savina Hadjidekova; Inmaculada Domínguez
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-8-27
Journal Detail:
Title:  Mutation research     Volume:  -     ISSN:  0027-5107     ISO Abbreviation:  Mutat. Res.     Publication Date:  2013 Aug 
Date Detail:
Created Date:  2013-9-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0400763     Medline TA:  Mutat Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013. Published by Elsevier B.V.
III Neurological Clinic, University Hospital Saint Naum, Sofia, Bulgaria.
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