Aggregates of beta-amyloid protein (Abeta) and other malformed proteins accumulate in both "normal" brain aging and neurodegenerative disease, leading to neuronal loss. Their removal by immunotherapy is a central plank of the SENS platform, and the most clinically advanced. Gantenerumab, a new fully human anti-Abeta monoclonal antibody, has just completed a Phase I trial.
The elimination from the body of telomerase, the enzyme used by most cancer cells to maintain their DNA through unlimited numbers of cell divisions, is the central component of the WILT (Whole-body Interdiction of Lengthening of Telomeres) strategy proposed by SENS Research Foundation as a universal and unbreachable defence against all forms of cancer. Concerns have been raised, however, that telomerase may have other biologically important functions, making its elimination dangerous or impossible. Fortunately, recent work by Nobel laureate Carol Greider indicates a lack of any such activity.