Following epigenetic STING (stimulator of interferon genes) derepression, inhibition of the MPS1 kinase strongly reactivated cGAS-STING signaling in mutations in both the oncogene KRAS and the tumor suppressor kinase LKB/STK11. Exploiting these findings could lead to a new therapeutic strategy to target treatment-refractory tumors with mutations in KL tumors, which have mutations in both KRAS and LKB1/STK11.
After a landmark clinical trial of the first POLQ inhibitor in cancer last year, a recently formed U.K. biotech is gearing up to bring a potential rival to the clinic in the coming months. Varsity Pharmaceuticals Ltd., of Cambridge, is planning to begin a phase I trial of novobiocin, a drug previously used as an antibiotic, which has also been found to inhibit the polymerase theta inhibitor (POLQ) pathway.
The largest study to date on hypermutated gliomas has delivered new insights into their origin, as well as their response to several different treatments. Specifically, even though they are hypermutated, such tumors are unlikely to respond to PD-1 blockers.
The largest study to date on hypermutated gliomas has delivered new insights into their origin, as well as their response to several different treatments. Specifically, even though they are hypermutated, such tumors are unlikely to respond to PD-1 blockers.
Sadly, a major part of the answer to why drugs are so expensive appears to be “because they can be.” But the high cost of drugs has also spurred a number of attempts to find medicines that are innovative but remain affordable. Drug repurposing, or using a drug that has been developed for one ailment to treat a different one, is one such strategy.
