Disclosed herein is a method for predicting whether a subject with cancer will exhibit a beneficial response to arginine deficiency therapy. The method includes the step of determining the plasma concentration of arginine in the subject, followed by administering arginine deficiency therapy to the subject alone or in combination with an anticancer agent, based on the determined plasma concentration of arginine. According to some embodiments of this disclosure, the anticancer agent is selected from the group consisting of FOLFOX, docetaxel, cisplatin, pemetrexed, pembrolizumab, and combinations thereof.
This invention relates to a lalotasyl-derived taxane compound, specifically a compound of general formula (I) or a pharmaceutically acceptable salt thereof. Wherein R 1 Selected from hydrogen, C 1‑6 Alkyl, cycloalkyl, aryl, or benzyl groups. This invention also provides methods for preparing the compounds and their use in the preparation of medicaments for the prevention and / or treatment of tumors. In vitroantitumor activity tests show that these compounds have significant inhibitory activity against various human cancercell lines, including non-small celllungcancercell line A549, breast cancercell line MCF-7, triple-negative breast cancer cell line MDA-MB-231, glioblastoma cell line U251, paclitaxel-resistant non-small celllungcancer cell line A549Tax, and doxorubicin-resistant breast cancer cell line MCF-7 / ADR. Some of these compounds showed 136-462 times greater activity against A549 cells than lalostatin. The compounds of this invention possess excellent antitumor activity and are expected to be used in the preparation of medicaments for the treatment of tumors such as lungcancer, breast cancer, or glioma.