immunosuppressive treatment regulatory T lymphocyte 3 Article 2 CD4+ T lymphocyte 2 Male 2 T lymphocyte 2 T-Lymphocytes, Regulatory 2 controlled study 2 down regulation 2 flow cytometry 2 human 2 interleukin 2 receptor alpha 2 male 2 metabolism 2 phenotype 2 transcription factor FOXP3 2 unclassified drug 2 AIDS 1 Acquired Immunodeficiency Syndrome 1 Adolescent 1 Adult 1 Aged 1 Animals 1 Biomarkers 1 CD4 Antigens 1 CD4 antigen 1 CD4+CD25+Treg 1 CD4+PD-1+T cell 1 CD8+ T lymphocyte 1 CXCL1 chemokine 1