03.12.2012 - French researchers have identified how the body’s immune systems triggers therapy resistance to the cancer drugs gemcitabine and 5-fluorouracil.
The researchers, headed by François Ghiringhelli from INSERM in Dijon, found that in mice, the drugs activate a protein complex, termed Nlrp3 inflammasome, in myeloid derived suppressor cells. This activation leads to the release of the immune cell interleukin (IL)-1 beta, which then skews T immune cells to produce protumorigenic IL-17 and results in enhanced growth of tumours in mice (Nature Medicine, doi: 10.1038/nm.2999).
The chemotherapeutics were more efficacious at inhibiting tumour growth in mice lacking Nlrp3 or IL-17, or treated with an IL-1 receptor antagonist. The findings suggest that targeting the inflammasome pathway in conjunction with chemotherapy may improve its tumour killing efficacy by preventing the induction of protumorigenic immune responses.
20.08.2014 Biopharmaceutical contract manufacturer Fujifilm Diosynth Biotechnologies is expanding its cell culture manufacturing capacity further with a new 2,000l single-use bioreactor at the company’s site in Billingham, UK.
08.08.2014 Boehringer Ingelheim is walking away from Swedish Orexo's prostaglandin inhibition project OX-MPI. Germany's largest researching pharmaceutical company had been responsible for the project's research and development since 2005.