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1.
Pediatr Hematol Oncol ; 34(4): 199-205, 2017 May.
Article in English | MEDLINE | ID: mdl-29040012

ABSTRACT

Children with Down syndrome (DS) have a 20-fold increased risk of developing leukemia compared with the general population. The aim of the study was to analyze the outcome of patients diagnosed with Down syndrome and acute lymphoblastic leukemia (ALL) in Poland between the years 2003 and 2010. A total of 1848 children were diagnosed with ALL (810 females and 1038 males). Of those, 41 (2.2%) had DS. The children were classified into three risk groups: a standard-risk group-14 patients, an intermediate-risk group-24, a high-risk group-3. All patients were treated according to ALLIC 2002 protocol. The median observation time of all patients was 6.1 years, and in patients with DS 5.3 years. Five-year overall survival (OS) was the same in all patients (86% vs 86%, long-rank test, p = .9). The relapse-free survival (RFS) was calculated as 73% in patients with DS and 81% in patients without DS during a median observation time (long-rank test, p = .3). No statistically significant differences were found in the incidence of nonrelapse mortality between those two groups of patients (p = .72). The study was based on children with ALL and Down syndrome who were treated with an identical therapy schedule as ALL patients without DS, according to risk group. This fact can increase the value of the presented results.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/administration & dosage , Down Syndrome/drug therapy , Down Syndrome/mortality , Precursor Cell Lymphoblastic Leukemia-Lymphoma/drug therapy , Precursor Cell Lymphoblastic Leukemia-Lymphoma/mortality , Adolescent , Child , Child, Preschool , Disease-Free Survival , Down Syndrome/complications , Female , Follow-Up Studies , Humans , Infant , Male , Survival Rate
2.
Cent Eur J Immunol ; 40(3): 354-9, 2015.
Article in English | MEDLINE | ID: mdl-26648781

ABSTRACT

BACKGROUND: Fingolimod is a drug administered orally to adult patients treated for relapsing remitting course of multiple sclerosis (MS). Mode of action of fingolimod is based on intense S1P1 receptor stimulation and "arresting" lymphocytes in lymphatic organs. Objective of the research was to assess changes in the frequencies of basic lymphocyte subsets in patients treated for multiple sclerosis with the use of fingolimod. MATERIAL AND METHODS: Study group comprised of 25 previously untreated adult patients with MS. Venous blood samples were collected from each patient before and one month, three months and six months after treatment initiation. Peripheral blood lymphocyte immunophenotype was assessed with a set of monoclonal antibodies bounded to appropriate fluorochromes and flow cytometer FACSC alibur. Statistical analysis of the results was conducted using Statistica 9.0 software. RESULTS: Before fingolimod administration median of lymphocyte subsets percentage in each patient was in reference range. After 1 month of treatment we noticed significant changes in frequencies of following lymphocyte subsets: NK cells - 51.22% (p = 0.016), T CD4+ cells - 11.58% (p = 0.01), T CD4+:T CD8+ cells ratio - 0.61 (p = 0.005). After 3 and 6 months of treatment there was further increase of deviation from normal state. CONCLUSIONS: The use of fingolimod is associated with profound changes in lymphocyte subsets distribution, which might bear a risk of the development of cellular immune deficiency symptoms.

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