Key Points • MADD-deficient cytotoxic cells display defect of degranulation, most likely due to impaired activation of RAB27A.• Patients with MADD deficiency may have a predisposition to develop HLH. Click to show full abstract
Key Points • MADD-deficient cytotoxic cells display defect of degranulation, most likely due to impaired activation of RAB27A.• Patients with MADD deficiency may have a predisposition to develop HLH.
               
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