antitumor agent-19

Antitumor agent-19 is a modulator of tumor-associated macrophages with EC50s of 17.18 μM and 18.87 μM in the RAW 264.7 cells and the BMDM cells.

Antitumor agent-191 (Compound 7) exhibits antiviral activity against HSV-1 and HIV, with EC50 values of 0.03 μM and 0.81 μM, respectively. It also demonstrates potential antitumor properties by inhibiting cancer cell lines HepG2, WI-38, Vero, and MCF-7, with IC50 values of 19.6, 39.3, 18.3, and 28 μM, respectively.

Antitumor agent-192 (Compound 2f) is a β-carboline antitumor compound. It induces autophagy in HCT116 cells via the ATG5 ATG7 pathway. The IC50 of Antitumor agent-192 against human tumor cell lines is below 5 μM, and it significantly inhibits tumor growth and reduces tumor weight in xenograft mouse models of colorectal cancer.

Antitumor agent-198 (Compound A3) exhibits cytotoxicity in head and neck squamous cell carcinoma (HNSCC) cells, effectively inhibiting the proliferation of CAL27, HN6, HN30, SCC9, and SCC25, with an IC50 ranging from 4 nM to 77 nM. Additionally, Antitumor agent-198 suppresses HNSCC cell migration, arrests the cell cycle, and induces apoptosis.

Antitumor agent-196 (Compound 6a (β, β, β)) is an artemisinin-based oligomer with anticancer properties, exhibiting an IC50 of 90 nM against MCF-7 breast cancer cells. This compound induces apoptosis by modulating the Bax-caspase 3 signaling pathway and triggers ferroptosis by regulating key signaling molecules (including GPX4). Antitumor agent-196 shows potential for cancer research applications.

Antitumor agent-195 (compound 16c) is a dual-targeting agent that simultaneously targets STAT3 and NQO1. At a concentration of 1 μM, it significantly inhibits the phosphorylation of STAT3 at the Tyr705 site and effectively induces apoptosis in MDA-MB-231 and MDA-MB-468 breast cancer cells. As a substrate of NQO1, Antitumor agent-195 markedly increases ROS production, causing severe DNA damage in a dose-dependent manner. It also demonstrates strong antitumor properties in MDA-MB-231 xenograft models.

3CPLro-IN-1 (compound A17) is a potent, orally active inhibitor of SARS-CoV-2 3-Chymotrypsin-like cysteine protease (3CLpro) with an IC50 of 5.65 μM, making it an attractive drug target against COVID-19 and also considered an antitumor agent-51.