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- Talk
- 14/09/2021
- UK
Validation of a Stem Cell Derived Cartilage Model for Osteoarthritis Research and Drug Screening
Description
In a recent presentation, Ana Carregosa, a PhD student from Cardiff University, discussed her innovative research on developing a stem cell-derived cartilage model aimed at studying osteoarthritis (OA). Despite the global recognition of the burden of OA, Carregosa highlighted the lack of effective treatments and the prevalence of limited diagnostic techniques for early detection of the disease. She pointed out that current animal models inadequately predict human disease efficacy, creating a critical need for better in vitro human models.
Carregosa's team focuses on cultivating 3D healthy human cartilage, using progenitor cells isolated from the superficial zones of articular cartilage. These progenitor cells demonstrate a higher affinity for fibronectin compared to other cartilage cells, enabling the team to grow a scaffold-free and self-assembled cartilage tissue that mirrors native cartilage in both composition and structure.
The model shows promise in replicating the extracellular matrix complexity found in natural cartilage, and Carregosa reported significant advancements in the deposition of proteoglycans and collagen within the cultured tissue. She noted that the architecture of the tissue has been characterized by the expression of mature cartilage markers, particularly collagen type II, while observing the absence of collagen types I and X.
Carregosa's research aims to advance the understanding of cartilage formation and maturation over time, with particular interest in genetic markers indicating chondrogenesis as potential targets for drug screening and biomarker assays. Her presentation concluded with an invitation for questions, indicating her openness to collaboration and further inquiry into her promising research initiative.