Formalin-fixed paraffin-embedded (FFPE) human tissue samples had been a useful resource in biomedical research for decades dating back to 1893. They are readily available from clinical archives and provide precious insights into various diseases and their progression. Characterized by their ability to preserve tissue architecture and cellular morphology, human tissue samples support researchers worldwide in understanding the molecular basis of diseases and enable them to improve human health in general due to progressive therapeutic discoveries. Recent advancements in the use of FFPE samples allowed researchers to gain more data by exploring novel investigation techniques with improved efficiency and accuracy and therefore maximized the benefits of using these samples.
Proteomic analysis with FFPE samples has until recently been very challenging due to protein degradation and cross-linking caused during the formalin fixation process. Nonetheless, recent advancements in sample preparation and mass spectrometry technologies have enabled high-throughput proteomic analysis with FFPE samples. Scientists developed advanced procedures for enhanced protein extraction and digestion, minimized the effects of formalin-induced modifications, and improved peptide recovery for analysis. This enabled researchers to conduct large-scale proteomic studies on archival FFPE samples that provide valuable insights into protein expression patterns associated with various diseases like cancer, neurodegenerative disorders, and cardiovascular conditions.
Multiple immunofluorescence labeling, also called multiplex phenotyping, is a cutting-edge technique that offers researchers the possibility to simultaneously visualize multiple protein targets within a single FFPE tissue section. This method was limited in the past by spectral overlap and fading signals, therefore impeding accurate and reproducible analysis of tissue samples. However, recent advances in imaging technologies and fluorophores have addressed and overcome these challenges and kicked off a revolutionization of immunofluorescence analysis with FFPE samples. Researchers can now apply more different fluorophores in a single staining experiment, enabling the assessment of complex molecular interactions and cellular heterogeneity within FFPE samples. This method has proven particularly valuable in cancer research, as multiple biomarkers can be assessed simultaneously for precise tumor characterization and prognosis.
The combination of high-throughput proteomics with FFPE samples enables researchers to unlock the massive potential of archived tissues for large-scale protein analysis. This approach provides vastly more information and allows retrospective investigations of the disease progression and therapeutic response. Therefore, high-throughput proteomics with FFPE samples accelerates the discovery of novel biomarkers and potential therapeutic targets resulting in advanced precision medicine approaches.
Likewise, the adoption of multiple immunofluorescence phenotyping with FFPE samples provides researchers with a powerful technique to gain deeper insights into complex cellular processes within tissues. It enhances spatial resolution and decreases the need for multiple sequential sections. Scientists can gain a more comprehensive understanding of disease mechanisms and heterogeneity due to the simultaneous visualization of multiple protein markers, which will result in more accurate diagnosis and personalized medicine treatment strategies.
Central BioHub supports researchers worldwide aiming to enhance their biomedical research with the biggest inventory of FFPE samples available online. Our user-friendly online platform enables scientists to effortlessly browse our catalogue of human tissue samples and reserve them within just a few clicks. User-oriented search filters and directly accessible information about each sample allow researchers to select just the right sample that will fulfill any needs. Reserve your FFPE or frozen human tissue sample today by visiting
https://centralbiohub.de/blogs/ffpe-and-frozen-tissue-samples-for-spatial-analysis
Citations:
- Zhu, Y., Weiss, T., Zhang, Q., Sun, R., Wang, B., Yi, X., Wu, Z., Gao, H., Cai, X., Ruan, G., Zhu, T., Xu, C., Lou, S., Yu, X., Gillet, L., Blattmann, P., Saba, K., Fankhauser, C.D., Schmid, M.B., Rutishauser, D., Ljubicic, J., Christiansen, A., Fritz, C., Rupp, N.J., Poyet, C., Rushing, E., Weller, M., Roth, P., Haralambieva, E., Hofer, S., Chen, C., Jochum, W., Gao, X., Teng, X., Chen, L., Zhong, Q., Wild, P.J., Aebersold, R. and Guo, T. (2019), High-throughput proteomic analysis of FFPE tissue samples facilitates tumor stratification. Mol Oncol, 13: 2305-2328. https://doi.org/10.1002/1878-0261.12570
- Robertson, D., Savage, K., Reis-Filho, J.S. et al. Multiple immunofluorescence labelling of formalin-fixed paraffin-embedded (FFPE) tissue. BMC Cell Biol 9, 13 (2008). https://doi.org/10.1186/1471-2121-9-13
Article source: https://article-realm.com/article/Health-Fitness/50458-Unlocking-the-Potential-of-FFPE-Human-Tissue-Samples-in-Biomedical-Research.html
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