Extracellular matrix composition is associated with tissue-specific decellularization susceptibility and mechanical remodeling across human urogenital tissues

The composition of extracellular matrices (ECMs) in human urogenital tissues plays a crucial role in determining their susceptibility to decellularization and subsequent mechanical remodeling, according to recent research. Decellularized ECMs are commonly utilized in regenerative medicine, but existing evaluation methods primarily focus on the removal of cellular components, rather than the preservation of ECM characteristics that influence tissue function.

This study reveals that efficient decellularization can be achieved using a diverse range of chemical conditions. However, the preservation of structurally and functionally significant ECM components is only achievable within specific, tissue-specific ranges defined by the interactions between detergents. Through quantitative proteomics, researchers were able to establish a strong association between an ECM's intrinsic composition and tissue-specific susceptibility to decellularization-induced damage.

The findings provide molecular context for the varying preservation responses observed among different tissues. Even when optimized matrices retained only minor amounts of residual DNA, they were able to maintain major structural ECM components and support tissue-specific cellular organization following cellular repopulation. These results suggest that the current assessment of decellularization quality should shift from relying solely on DNA-based evaluations to focusing on the preservation of biologically relevant ECM components.

By adopting a composition-driven strategy, researchers can now design regenerative biomaterials that more accurately replicate the tissue-relevant biological and mechanical properties of native ECMs. This approach represents a significant advancement in the field of regenerative medicine, potentially leading to more effective treatments for a wide range of urogenital conditions.