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Effects of Sirolimus treatment on patients with β‐Thalassemia: Lymphocyte immunophenotype and biological activity of memory CD4+ and CD8+ T cells.

Authors :
Zurlo, Matteo
Nicoli, Francesco
Proietto, Davide
Dallan, Beatrice
Zuccato, Cristina
Cosenza, Lucia Carmela
Gasparello, Jessica
Papi, Chiara
d'Aversa, Elisabetta
Borgatti, Monica
Scapoli, Chiara
Finotti, Alessia
Gambari, Roberto
Source :
Journal of Cellular & Molecular Medicine; Feb2023, Vol. 27 Issue 3, p353-364, 12p
Publication Year :
2023

Abstract

Inhibitors of the mammalian target of rapamycin (mTOR) have been proposed to improve vaccine responses, especially in the elderly. Accordingly, testing mTOR inhibitors (such as Sirolimus) and other geroprotective drugs might be considered a key strategy to improve overall health resilience of aged populations. In this respect, Sirolimus (also known as rapamycin) is of great interest, in consideration of the fact that it is extensively used in routine therapy and in clinical studies for the treatment of several diseases. Recently, Sirolimus has been considered in laboratory and clinical studies aimed to find novel protocols for the therapy of hemoglobinopathies (e.g. β‐Thalassemia). The objective of the present study was to analyse the activity of CD4+ and CD8+ T cells in β‐Thalassemia patients treated with Sirolimus, taking advantages from the availability of cellular samples of the NCT03877809 clinical trial. The approach was to verify IFN‐γ releases following stimulation of peripheral blood mononuclear cells (PBMCs) to stimulatory CEF and CEFTA peptide pools, stimulatory for CD4+ and CD8+ T cells, respectively. The main results of the present study are that treatment of β‐Thalassemia patients with Sirolimus has a positive impact on the biological activity and number of memory CD4+ and CD8+ T cells releasing IFN‐γ following stimulation with antigenic stimuli present in immunological memory. These data are to our knowledge novel and in our opinion of interest, in consideration of the fact that β‐Thalassemia patients are considered prone to immune deficiency. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
15821838
Volume :
27
Issue :
3
Database :
Complementary Index
Journal :
Journal of Cellular & Molecular Medicine
Publication Type :
Academic Journal
Accession number :
161605167
Full Text :
https://doi.org/10.1111/jcmm.17655