Letters to the Editor

ICOS/ICOSL coexpression in Sézary syndrome reveals a potential tumorpromoting T-cell interaction

Faculty of Medical Sciences, UM6P Hospitals, University Mohammed VI Polytechnic, Benguerir, 43150, Morocco; IMRB (INSERM U955) Team Models and Oncogenesis of T-cell lymphomas (MOONLYT), Créteil, F-94000, France; Université Paris Est Créteil, Créteil
APHP, Hôpital Henri Mondor, Dermatology Department, Créteil, F-94000
IMRB (INSERM U955) Team Models and Oncogenesis of T-cell lymphomas (MOONLYT), Créteil, F-94000
AP-HP, Saint Louis Hospital, Dermatology Department, Paris, France; Institut de Recherche Saint Louis, INSERM U1342, Hôpital Saint Louis, Paris
AP-HP, Saint Louis Hospital, Dermatology Department, Paris
Institut de Recherche Saint Louis, INSERM U1342, Hôpital Saint Louis, Paris, France; Institut Godinot, CLCC de Reims, 51100 Reims
IMRB (INSERM U955) Team Models and Oncogenesis of T-cell lymphomas (MOONLYT), Créteil, F-94000, France; Université Paris Est Créteil, Créteil, France; AP-HP, Hôpital Henri Mondor, Pathology Department, Créteil, F-94000
Faculty of Medical Sciences, UM6P Hospitals, University Mohammed VI Polytechnic, Benguerir, 43150, Morocco
IMRB (INSERM U955) Team Models and Oncogenesis of T-cell lymphomas (MOONLYT), Créteil, F-94000, France; Université Paris Est Créteil, Créteil
Faculty of Medical Sciences, UM6P Hospitals, University Mohammed VI Polytechnic, Benguerir, 43150, Morocco
IMRB (INSERM U955) Team Models and Oncogenesis of T-cell lymphomas (MOONLYT), Créteil, F-94000, France; Université Paris Est Créteil, Créteil, France; AP-HP, Hôpital Henri Mondor, Pathology Department, Créteil, F-94000
Haematologica Early view Nov 12, 2026 https://doi.org/10.3324/haematol.2026.301825