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Tahir, M.

Publications and source records attributed to Tahir, M..

2 recordsLinked to original sources

Standardization and Harmonization of Distributed Multi-National Proteotype Analysis supporting Precision Medicine Studies

Cancer has no borders: Generation and analysis of molecular data across multiple centers worldwide is necessary to gain statistically significant clinical insights for the benefit of patients. Here we conceived and standardized a proteotype data generation and analysis workflow enabling distributed data generation and evaluated the quantitative data generated across laboratories of the international Cancer Moonshot consortium. Using harmonized mass spectrometry (MS) instrument platforms and standardized data acquisition procedures, we demonstrated robust, sensitive, and reproducible data generation across eleven sites in nine countries on seven consecutive days in a 24/7 operation mode. The data presented from the high-resolution MS1-based quantitative data-independent acquisition (HRMS1-DIA) workflow shows that coordinated proteotype data acquisition is feasible from clinical specimens using such standardized strategies. This work paves the way for the distributed multi-omic digitization of large clinical specimen cohorts across multiple sites as a prerequisite for turning molecular precision medicine into reality.

molecular biology

Increasing proteome coverage using cysteine-specific DIA Mass spectrometry - Cys-DIA

We report a Data Independent Analysis (DIA) mass spectrometric method for quantitative proteomics based on cysteine-containing peptides derived by tryptic digestion from biological samples (termed Cys-DIA). This technology significantly increases the coverage of the identifiable and quantifiable proteome in DIA/SWATH analyses by >35% compared to the conventional DIA/SWATH methods. The strategy was applied here to illustrate the quantitative difference in the proteome between isogenic human cancer cell lines with different metastatic capabilities.

biochemistry