CYP1B1 plays an essential role in cancer's pathogenesis since it activates procarcinogens. Significantly, this enzyme catalyzes the hydroxylation of 17β-estradiol, leading to carcinogenic metabolites involved in carcinogenesis and cancer progression. Therefore, the inhibition of CYP1B1 activity is considered a therapeutic target for chemotherapy. In addition, CYP1B1 is overexpressed in hormone-dependent cancer cells and could be related to resistance to anticancer drugs. However, the activity of CYP1B1 in the tumor microenvironment can metabolize and activate prodrugs in cancer cells, providing more selectivity and being useful for chemoprevention or chemotherapy strategies. Furthermore, due to its importance in anticancer drug design, recent studies have reported using computational methods to understand the intermolecular interactions between possible ligands and CYP1B1. Therefore, in this perspective, we highlight recent findings in developing CYP1B1 inhibitors (flavonoids, trans-stilbenes, estradiol derivatives, and carbazoles) and CYP1B1-activated prodrugs (a chalcone DMU-135 and an oxime DMAKO-20). Finally, we have analyzed their possible molecular interactions with this enzymatic target by molecular docking, which can help to design new active substances.
Some diseases caused by trypanosomatid parasites, like Leishmaniasis, Chagas Disease, and Human African Trypanosomiasis (HTA), are challenging to manage, mainly concerning pharmacological therapy because they are associated with vulnerable populations. Unfortunately, there is a lack of significant investments in the search for new drugs. Therefore, one of the strategies to aid the discovery of new drugs is to identify and inhibit molecular targets essential to the parasite's survival, such as the proteasome, which degrades most proteins in the parasite cells. Our study has presented several proteasome inhibitors with various pharmacophoric cores, and two of them, 5, and 13, have stood out in the clinical phase of treatment for leishmaniasis.
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