Hemophagocytic lymphohistiocytosis (HLH) is a life-threatening syndrome characterized by excessive immune activation and inflammatory response. Conventional immunotherapy and molecular targeted drugs demonstrate varying efficacy. Cytokine storm, the primary pathogenic mechanism of HLH, is driven by interferon-gamma (IFN-γ), interleukin (IL)-2, IL-18, etc., in which IFN-γ plays a critical role in the development of the disease. Emapalumab, a potent IFN-γ inhibitor, effectively reduces the occurrence of cytokine storms in refractory and relapsed HLH.
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Jia et al. (2024) studied this question.
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