2026. 08.19 (수) ~ 2026. 08.21 (금)
창원컨벤션센터(CECO)
| 제목 | Identification of aging-specific membrane proteins towards the reverse aging |
|---|---|
| 작성자 | 조예진 (대구경북과학기술원) |
| 발표구분 | 포스터발표 |
| 발표분야 | 5. Life & Informatics |
| 발표자 |
조예진 (대구경북과학기술원) |
| 주저자 | 조예진 (대구경북과학기술원) |
| 교신저자 | |
| 저자 |
조예진 (대구경북과학기술원) |
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Cellular senescence drives chronic inflammation and tissue dysfunction, contributing to severe diseases such as osteoporosis, osteoarthritis, pulmonary fibrosis, and cancer. Plasma membrane proteins constitute only ~30% of the whole proteome. However, they hold high clinical value, representing over 60% of drug targets. Their low abundance and strong hydrophobicity pose technical limitations for analysis. This study aims to establish a highly cost- and time-effective, streamlined membrane protein enrichment method and utilize it to identify aging-specific membrane protein markers. Through the optimization of a detergent-based purification protocol, the concentration and composition of extraction buffers were adjusted to 0.004% digitonin and a 0.5% mixture (Triton X-100:DDM = 2:8), respectively. Employing Loose Dounce homogenization between extraction buffer treatments significantly reduced organelle contamination. This optimized technique was applied to a senescent Human Dermal Fibroblasts (HDFs) to perform differentially expressed protein (DEP) analysis. Furthermore, I plan to conduct profiling of extracellular matrix (ECM) glycoproteins to identify simultaneous cellular phenotypic shifts and demonstrate their value as multiplex biomarkers. In conclusion, proteome analysis of both fractions specifies disease-specific membrane proteins driving senescence. This research holds long-term significance in establishing a foundation for realizing reverse-aging. |
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