Inhibition of Albumin Denaturation: Assessing Anti-Inflammatory Activity in collagen for bone regeneration

Abstract Bone damage often leads to inflammation, which can impede osteogenesis and regeneration. Collagen-based membranes are crucial for guided bone regeneration; However, their efficacy can be compromised by inflammation. This study investigated the anti-inflammatory properties of collagen by assessing its capacity to inhibit heat-induced albumin denaturation, an in vitro model for anti-inflammatory potential, with implications for optimizing the bone healing environment. The anti-inflammatory activity of collagen was evaluated using heat-induced albumin denaturation assay. Various concentrations of thecollagen samples (500, 250, 100, 50, and 10 μg/ml) were tested. Optical density values were measured at 660 nm, and the percentage inhibition of albumin denaturation was calculated. The IC50 values were also determined. The collagen samples demonstrated dose-dependent inhibition of albumin denaturation. As the concentration of collagen decreased, the percentage of inhibition also decreased. This study found an IC50 value of 55.83 μg/ml for the inhibition of albumin denaturation. For example, at 500 μg/ml, the mean inhibition was 55.27%, where as 10 μg/ml, it was 15.23%. Collagen exhibits significant anti-inflammatory properties through its ability to inhibit albumin denaturation, indicating its potential to stabilize proteins and mitigate inflammatory responses crucial for bone regeneration. The IC50 value of 55.83 μg /ml suggests collagen is a potent candidate for therapeutic applications in inflammatory bone conditions, capable of creating an immunomodulatory environment conducive to robust bone remodeling and healing by potentially promoting a pro-regenerative M2 macrophage phenotype. This understanding will inform the design of collagen-based scaffolds that not only provide structural support, but also actively modulate the local inflammatory microenvironment.