In order to achieve biomedical longevity, the problem of cross-Linking of the extracellular matrix needs to be addressed. Cells are held together by special linking proteins. When too many cross-links form between cells in a tissue, the tissue can lose its elasticity and cause problems including arteriosclerosis, presbyopia and weakened skin texture. These are chemical bonds between structures that are part of the body, but not within a cell. In senescent people many of these become brittle and weak. Fixing cross-linking may prove more difficult than just removing it – as it may create a vacuum where more waste is pulled in to fill the void left behind. Though some research is being conducted, the problem deserves a lot more hands on deck – and far more funding.
Denis gives a technical explanation of why conquering cross-linking is important, and strategies for addressing this problem in this interview conducted at the Undoing Aging conference in Berlin 2019.
Introduction to Denis’ writing/research here – “The Impact of Extracellular Matrix Proteins Cross-linking on the Aging Process“.
Understanding the consequences of the formation of protein crosslinks requires more attention both from the scientific community and independent researchers who are passionate with regards to the extension of the human lifespan. By doing so, it allows us to level up the playing field where we can create and work on more serious and impactful solutions.
Also see GlycoSENS – SENS proposes to further develop small-molecular drugs and enzymes to break links caused by sugar-bonding, known as advanced glycation endproducts, and other common forms of chemical linking.