Guillaume Andrieu PhD and Jordan Shafran report research on new mechanisms to develop immunotherapy for triple negative breast cancer

The research team of Andrieu and Shafran, directed by Gerald Denis PhD, in the BU-BMC Cancer Center, has just reported that “BET bromodomain targeting suppresses the PD-1/PD-L1 pathway in triple-negative breast cancer and elicits anti-tumor immune response”, which appeared today in Cell Reports ‘Sneak Peek’ https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3260754

The mechanisms that control the expression of immune inhibitory molecules in diverse cancer types, such as PD-L1, and host immune receptors such as PD-1 on T cells in the tumor microenvironment, are being investigated urgently. New tools to inhibit these checkpoints show great promise to unleash anti-tumor immunity, and results of recent cancer clinical trials are encouraging. Immunotherapy as an exciting and evolving field was recognized on October 1, 2018, with the award of the Nobel Prize in Medicine to Honjo and Allison. On the other hand, clinical cases in which immune therapy approaches fail are poorly understood, and failure is common enough for certain cancer types to have caused widespread frustration in clinical trials. Given the limited therapeutic options available to patients with triple negative breast cancer, new modalities are urgently needed, and promising results from new immunotherapy clinical trials could quickly reshape the treatment of this subtype of breast cancer.

Here, Andrieu, Shafran and Denis show that inhibition of the BET bromodomain protein family can reduce PD-L1 expression in cellular models of triple negative breast cancer. It is also highly innovative and significant that they show these same pathways control PD-1 expression in human primary T cells, which holds out the possibility that multiple relevant cells in the tumor microenvironment could be targeted by these approaches. They are continuing this research, with support from the National Cancer Institute with a new grant, called “BET bromodomain proteins and the immunometabolism of triple negative breast cancer” (R01 CA222170).

Welcome Latoya Murrell to the Section of Hematology & Medical Oncology

We are excited to welcome Latoya Murrell to the Section of Hematology and Medical Oncology as an Office Manager starting 6/10. Latoya is a dedicated administrative professional with over 10 years of experience providing exceptional administrative and operational support.
In her new role, Latoya will primarily provide support to Dr. Matthew Kulke as well as performing a variety of administrative functions in support of the department. With an acute eye for detail and meticulous organizational skills, Latoya has proven to elevate the administrative functions that she is responsible for. Outside of work, Latoya loves exploring new destinations and cultures, and she finds joy in expressing herself through dance. She also has a keen interest in teeth whitening, always on the lookout for the best ways to brighten her smile. Above all, Latoya is a proud mom, cherishing every moment spent with her children and striving to be a positive role model in their lives. Please help us welcome Latoya into her new role!