Induction of apoptosis in CD4(+) T-cells is linked with optimal treatment response in patients with relapsing-remitting multiple sclerosis treated with Glatiramer acetate.
J Neurol Sci
; 401: 43-50, 2019 Jun 15.
Article
em En
| MEDLINE
| ID: mdl-31009931
ABSTRACT
BACKGROUND:
Induction of T-cell apoptosis constitutes a mechanism of action for Glatiramer Acetate (GA). We investigated whether activation of apoptotic T-cell death may be indicative of optimal treatment response in patients with relapsing-remitting Multiple Sclerosis (RRMS), with respect to radiological activity.METHODS:
We studied apoptotic markers on blood T-cells of forty patients with RRMS, 19 patients under GA and 21 patients under interferon-ß (IFNß), by flow cytometry. Patients were relapse-free and were further classified into optimal and sub-optimal responders based on radiological activity. Eighteen patients (8 patients under GA and 10 patients under IFNß were additionally evaluated at a 12-month follow-up and were relapse- and radiological activity-free. For these patients, apoptosis was also evaluated by molecular techniques.RESULTS:
At inclusion, optimal responders to GA exhibited increased (23.6⯱â¯1.976) relative % frequency of CD4(+)AnnexinV(+)7AAD(-) T-cells, compared to sub-optimal responders (14.478⯱â¯1.204, pâ¯=â¯0.001). Similarly, relative % frequency of caspase-3(+) T-cells was 1.517⯱â¯0.436 versus 0.45⯱â¯0.149 (pâ¯=â¯0.041), respectively. Anti-apoptotic molecule bcl-2 showed an inverse pattern 4.532⯱â¯1.321 versus 13.094⯱â¯3.987, pâ¯=â¯0.044, respectively. These differences were not evident for IFNß-treated patients.CONCLUSIONS:
T-cell apoptotic markers may be applied as a biomarker useful in evaluating optimal treatment response under GA, thus allowing for personalized treatment decisions.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Linfócitos T CD4-Positivos
/
Apoptose
/
Esclerose Múltipla Recidivante-Remitente
/
Acetato de Glatiramer
/
Imunossupressores
Tipo de estudo:
Observational_studies
/
Prognostic_studies
Limite:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
J Neurol Sci
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Grécia