Yang Liu, Steven Reiken, Haikel Dridi, Qi Yuan, Khalid S Mohammad, Trupti Trivedi, Marco C Miotto, Kaylee Wedderburn-Pugh, Leah Sittenfeld, Ynez Kerley, Jill A Meyer, Jonathan S Peters, Scott C Persohn, Amanda A Bedwell, Lucas L Figueiredo, Sukanya Suresh, Yun She, Rajesh Kumar Soni, Paul R Territo, Andrew R Marks, Theresa A Guise
Chemotherapy-induced cognitive dysfunction (chemobrain) is an important adverse sequela of chemotherapy. Chemobrain has been identified by the National Cancer Institute as a poorly understood problem for which current management or treatment strategies are limited or ineffective. Here, we show that chemotherapy treatment with doxorubicin (DOX) in a breast cancer mouse model induced protein kinase A (PKA) phosphorylation of the neuronal ryanodine receptor/calcium (Ca2+ ) channel type 2 (RyR2), RyR2 oxidation, RyR2 nitrosylation, RyR2 calstabin2 depletion, and subsequent RyR2 Ca2+ leakiness...
September 27, 2023: Science Translational Medicine