Vascular decellularization dynamics: Optimizing Triton X-100 and SDS concentration with incubation time

I am writing to discuss a riveting aspect of the study "Acellular carotid scaffold and evaluation the biological and biomechanical properties for tissue engineering" by Farina Rashidi et al. 1 With coronary artery disease (CAD) affecting 154 million people and peripheral artery disease (PAD) impacting 120 million globally, representing 32.7% and 25.6% of the cardiovascular disease burden respectively, there is an urgent need for new strategies to address this growing health.In this case, acellular scaffolds produced by decellularizing allogeneic or xenogeneic arteries seem like suitable replacements.Decellularization of allogenic or xenogeneic vascular scaffolds, preserves extracellular matrix (ECM) components and mimics blood vessel geometry, has garnered significant interest. 2However, an established decellularization protocol with the perfect equilibrium of concentration and incubation duration has yet to be defined.The study by Farina Rashidi et al notably highlights the efficacy of Triton X-100 and tri(n-butyl) phosphate (TnBP) in the decellularization process of carotid arteries. 1he utilization of 1% Triton X-100 and 1% TnBP yielded decellularized vessels devoid of residual cell nuclei and cellular components, with well-preserved collagen fibers and a significant reduction in DNA content to less than 50 ng/mg of dried tissue (P < 0.001).Additionally, there were no notable alterations in the chemical composition of the ECM, indicating the successful integration of mechanical properties in the decellularized vessels. 1 However, the key determinant of decellularization efficacy lies in selecting the appropriate concentration of reagents and duration of incubation.Although the study by Farina Rashidi et al provide valuable insight into the potential of Triton X-100 in efficiently decellularizing the blood vessels, any combination of detergents leads to structural damage to the intrinsic ECM, with the extent of damage escalating alongside increased detergent concentration.The debate