Publications by authors named "A Vladic"
Introduction: Alemtuzumab is highly effective in the treatment of patients with relapsing multiple sclerosis (PwRMS) and selectively targets the CD52 antigen, with a consequent profound lymphopenia, particularly of CD4+ T lymphocytes. However, the immunological basis of its long-term efficacy has not been clearly elucidated.
Methods: We followed up 29 alemtuzumab-treated RMS patients over a period of 72 months and studied the immunological reconstitution of their CD4+ T cell subsets by means of phenotypic and functional analysis and through mRNA-related molecule expression, comparing them to healthy subject (HS) values (rate 2:1).
Alemtuzumab, a highly effective treatment for relapsing remitting multiple sclerosis (RRMS), induces lymphopenia especially of CD4+ T cells. Here, we report the atypical CD4+ T population behaviour of two patients with persistent disease activity despite repeated alemtuzumab treatments. Whereas lymphocytes count decreased and fluctuated accordingly to alemtuzumab administration, their CD4+ cell percentage was not or just mildly affected and was slightly below the lowest normal limit already before alemtuzumab.
View Article and Find Full Text PDFAlemtuzumab long-term immunologic effect: Treg suppressor function increases up to 24 months.
Neurol Neuroimmunol Neuroinflamm
February 2016
Objective: To analyze changes in T-helper (Th) subsets, T-regulatory (Treg) cell percentages and function, and mRNA levels of immunologically relevant molecules during a 24-month follow-up after alemtuzumab treatment in patients with relapsing-remitting multiple sclerosis (RRMS).
Methods: Multicenter follow-up of 29 alemtuzumab-treated patients with RRMS in the Comparison of Alemtuzumab and Rebif Efficacy in Multiple Sclerosis (CARE-MS) I and CARE-MS II trials. Peripheral blood (PB) samples were obtained at months 0, 6, 12, 18, and 24.
Article Synopsis
- The study investigates how variations in the glutathione S-transferase P1 (GSTP1) gene might influence the severity and progression of multiple sclerosis (MS) through a detailed analysis involving 58 MS patients and 68 controls.
- Findings indicate that a specific GSTP1 gene polymorphism (C341T) is more common in healthy individuals than in MS patients, potentially affecting clinical outcomes.
- Gender differences were noted, with females showing a higher occurrence of the C341T mutation, and male MS patients exhibiting more severe disease progression, suggesting that the GSTP1 pathway may play a role in MS severity influenced by gender.
Context: Alemtuzumab, an anti-CD52 monoclonal antibody, increased the risk of thyroid dysfunction in CAMMS223, a phase 2 trial in relapsing-remitting multiple sclerosis.
Objective: The objective of the study was a detailed description of thyroid dysfunction in CAMMS223.
Design: Relapsing-remitting multiple sclerosis patients (n=334) were randomized 1:1:1 to 44 μg sc interferon-β-1a (SC IFNB-1a, Rebif) or annual courses of 12 or 24 mg iv alemtuzumab.