Melinda Burgess, Colm Keane, Joshua Wd Tobin, Soi Cheng Law, Alison Griffin, Devinder Gill, Adam D Ewing, Victoria Atkinson, Peter Mollee, Muhammed B Sabdia, Nicholas Saunders, Maher K Gandhi
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引用次数: 2
Abstract
Here, we present a novel case of a patient with chronic lymphocytic leukemia (CLL) who received CTLA-4 and then PD-1 immune-checkpoint blockade (ICB) as treatment for concomitant metastatic melanoma. Whereas the metastatic melanoma was responsive to ICB, the CLL rapidly progressed (but responded to ICB cessation and ibrutinib). There were no new genetic mutational drivers to explain the altered clinical course. PD-1/PD-L1/PD-L2 and CTLA-4/CD80/CD86 expression was not increased in CLL B cells, CD8+ or CD4+ T-cell subsets, or monocytes. The patient's CLL B cells demonstrated strikingly prolonged in vitro survival during PD-1 blockade, which was not observed in samples taken before or after ICB, or with other patients. To our knowledge, a discordant clinical course to ICB coupled with these biological features has not been reported in a patient with dual malignancies.
期刊介绍：
''Acta Haematologica'' is a well-established and internationally recognized clinically-oriented journal featuring balanced, wide-ranging coverage of current hematology research. A wealth of information on such problems as anemia, leukemia, lymphoma, multiple myeloma, hereditary disorders, blood coagulation, growth factors, hematopoiesis and differentiation is contained in first-rate basic and clinical papers some of which are accompanied by editorial comments by eminent experts. These are supplemented by short state-of-the-art communications, reviews and correspondence as well as occasional special issues devoted to ‘hot topics’ in hematology. These will keep the practicing hematologist well informed of the new developments in the field.
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