Regenerative medicine最新文献

Aims: The UK advanced therapy medicinal product (ATMP) clinical trials database, produced annually by CGT Catapult, aims to assess the progress and state of the UK ATMP clinical development landscape. The aim of this article is to highlight key findings from the database and put them into context within the global landscape and various initiatives intended to attract ATMP developers to the UK.

Method: A targeted search of GlobalData's clinical trial database was performed, followed by refinement so that only trials investigating products meeting ATMP definitions were included, and that each trial was only counted once in the analysis.

Results: The 2023 data show that the number of ongoing ATMP clinical trials in the UK has remained approximately static, in contrast to a 10% reduction reported globally. Approximately 80% of these trials were commercially sponsored. Although most ATMP clinical trials are early phase, there is evidence indicating progression to later phase studies.

Conclusion: The data indicate that the UK remains an attractive region for ATMP clinical trials. Factors including UK government investment in research, regulatory support offered by MHRA, and the Advanced Therapy Treatment Centre (ATTC) network of clinical sites, may contribute to the positive ecosystem available to developers of ATMPs.

Background: To address the limitations of Cultivated Limbal Epithelial Transplantation (CLET) and the use of amniotic membrane (AM) in treating Limbal Stem Cell Deficiency (LSCD), we aimed to develop a Collagen/Silk Fibroin (Co/SF) scaffold enriched with Platelet-Rich Growth Factor (PRGF) to support the proliferation, maintenance, and differentiation of Wharton's jelly-derived mesenchymal stem cells (WJMSCs) into corneal epithelial cells (CECs).

Method: Scaffolds loaded with PRGF were evaluated through release studies, cytotoxicity assays, and cell differentiation. The proliferation and differentiation of WJMSCs and Limbal Epithelial Stem Cells (LESCs) were investigated using MTT assays, real-time PCR and immunostaining.

Results: The PRGF-loaded Co/SF scaffold significantly promoted the proliferation of both WJMSCs and LESCs in a concentration-dependent manner. Real-time PCR and immune staining revealed a significant increase in the expression of P63, ABCG2, and cytokeratin 3/12 markers in WJMSCs, a significant decrease in the expression of P63 and ABCG2, and a significant increase in the expression of cytokeratin 3/12 markers indicating successful differentiation into CECs.

Conclusion: The WJMSC cultured on PRGF-enriched Co/SF scaffold demonstrates potential as a viable alternative to conventional CLET, offering a promising strategy for corneal tissue regeneration.

There is a paucity of data regarding using platelet-rich plasma therapy for Baker's cyst-associated medial meniscal tear. To date, conservative treatments for this type of condition include aspiration of fluid effusion with steroid injection and physical therapy. When this treatment fails, arthroscopic debridement, meniscectomy, cyst decompression and open cystectomy are available surgical management options. Recurrence rates, however, are high such that even these procedures fail to provide long-term pain relief. This case study explores the benefits of leukocyte-rich platelet-rich plasma therapy in treating tears in the posterior horn of the medial meniscus with concomitant Baker's cyst. With limited studies available, this case hopes to encourage more studies to be done in the future to provide a conservative option for patients with similar cases.

Metatarsal head stress fractures pose treatment challenges with no established consensus. In this article, we introduce a percutaneous treatment involving autologous bone marrow aspirate concentrate (BMAC) injection without surgical fixation in a 21-year-old basketball player with a stress fracture of the right fifth metatarsal head. He underwent this procedure following unsuccessful 8 months of conservative treatment. Twelve weeks after the procedure, a CT scan confirmed complete healing, facilitating his return to sports. This innovative method offers a promising alternative, avoiding the associated morbidity of surgical intervention. Further research, comparing refracture rates with surgical options, is warranted to inform treatment decisions for this uncommon injury and validate the efficacy of percutaneous BMAC injection.

Latest developments in the field of stem cell research and regenerative medicine compiled from publicly available information and press releases from non-academic institutions in July 2024.

Latest developments in the field of stem cell research and regenerative medicine compiled from publicly available information and press releases from non-academic institutions in July 2024.

Latest developments in the field of stem cell research and regenerative medicine compiled from publicly available information and press releases from non-academic institutions in May 2024.

Aim: Over the last two decades, numerous experimental studies have examined the feasibility of delivering stem cells into the cochlea to restore hearing. While these studies have spawned new cell therapy companies, there is little information on what patients understand or expect from these emerging therapies.Methods: This study sought to understand the awareness and perspectives of Australian audiologists and their adult patients toward stem cell therapies for treating hearing loss.Results: An anonymous survey indicated 91% of patients and 39% of audiologists were unaware of these therapies being developed. Thirty percent of audiologists reported being asked about stem cell therapies for hearing loss, but 70% were not confident answering patient queries about this and were unsure where to gather information. Primary concerns reported by patients were cost (45%) and safety of treatment (42%). Interestingly, 58% of patients were unsure of how this therapy would improve their hearing, yet 25% of these patients expected that their hearing would return to normal.Conclusion: There was strong support for development of educational materials for both patient and clinician. The increasingly important role of audiologists in providing patient counselling was reflected in overwhelming support (from both patient and clinician) for audiologists providing such information.