RESUMO
Malaria is a kind of disease detrimental to human health and plasmodium is a critical pathogen in it. The immunity against foreign antigens including plasmodium could be divided into two categories, namely, adaptive immunity and innate im-munity. Innate immunity induces non-specific immune response, and is composed of monocyte,macrophage,γδT cell,DC,NK, and cytokines etc. Innate immunity cooperates with adaptive im-munity efficiently to protect against malaria. Meanwhile,autoph-agy is not only the cellular degrading process, but also gets in-volved in regulating immune system and defending against plas-modium infection. Therefore, elucidation of corresponding mechanism could provide proof for efficiently controlling and cu-ring malaria,developing related medicine and vaccine,and clin-ical treatment as well. This article reviews the constitution of in-nate immunity in malaria,related regulation mechanism and rel-evant therapeutic targets for it.
RESUMO
Programmed cell death protein 1 (PD-1)/programmed death ligand 1 (PD-L1) is a significant immune checkpoint, and the dysfunction of this axis contributes to tumor metastasis and immune escape. PI3K/Akt/mTOR and MAPK signal network induces PD-1/PD-L1 expression and facilitates tumor progression. Transcriptional factors such as hypoxia induced factors, PTEN, p53, CDK5, BRD4, STAT modulate PD-1/PD-L1 expression. PD-1/PD-L1 level is also regulated via epigenetic and post-translational manner. The underlying mechanisms mentioned above may provide potential targets for tumor treatment. At present, the combination therapy of PD-1/PD-L1 monoclonal antibodies plus small molecular inhibitors has achieved good outcomes in tumor treatment.