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. 2021 Apr 23;12:2425. doi: 10.1038/s41467-021-22407-6

Fig. 1. 5-Carboxy-8-hydroxyquinoline (IOX1) potentiates chemo-immunotherapy.

Fig. 1

a IOX1 inhibits the histone demethylase Jumonji domain-containing 1A (JMJD1A) and thus downregulates its downstream β-catenin expression; b it downregulates P-glycoproteins (P-gp) and increases doxorubicin (DOX) concentration of cancer cells, facilitating the immunogenic cell death (ICD); c it downregulates tumour cells’ PD-L1 expression and thus disrupts the PD-1/PD-L1 pathway with T cells. d The synergy of the two effects enables its liposome formula (IOXL) combined with pegylated liposomal DOX (PLD), i.e. IPLD, to inhibit tumour growth. ER: endoplasmic reticulum, CRT: calreticulin, HMGB1: high mobility group box 1, ATP: adenosine triphosphate, iDC: immature dendritic cell, mDC: mature dendritic cell, CTL: cytotoxic T lymphocyte.