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arXiv 2402.16615q-bio.QM
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FRAP分析:利用图像分析测量生物物理动力学参数

FRAP analysis Measuring biophysical kinetic parameters using image analysis

Sharva V. Hiremath, Etika Goyal, Gregory T. Reeves, Cranos M. Williams

AI总结:

针对转录因子动力学定量测量的难点,研究提出整合图像分割、细胞核追踪与强度提取的计算流程,结合FRAP技术可估算转录因子转运速率等关键生物物理参数。

摘要:

理解转录因子动力学对于揭示支撑细胞功能与发育的基因表达调控机制至关重要。转录因子亚细胞运动的测量对于构建基因表达预测模型必不可少。然而,由于生物数据的固有变异性,以及追踪分子运动与相互作用对高精度的要求,获取这些定量测量结果面临重大挑战。我们的计算流程为这些挑战提供了解决方案,为转录因子动力学的定量分析提供了一套全面的方法。该流程整合了可准确勾勒单个细胞核的先进图像分割技术、用于监测细胞核随时间变化的精准细胞核追踪技术,以及可测量荧光强度以作为转录因子活性代理指标的详细强度提取技术。将我们的流程与荧光漂白后恢复(FRAP)等技术结合,能够估算关键的生物物理参数,例如转录因子的输入和输出速率。

英文摘要:

Understanding transcription factor dynamics is crucial for unraveling the regulatory mechanisms of gene expression that underpin cellular function and development. Measurements of transcription factor subcellular movements are essential for developing predictive models of gene expression. However, obtaining these quantitative measurements poses significant challenges due to the inherent variability of biological data and the need for high precision in tracking the movement and interaction of molecules. Our computational pipeline provides a solution to these challenges, offering a comprehensive approach to the quantitative analysis of transcription factor dynamics. Our pipeline integrates advanced image segmentation to accurately delineate individual nuclei, precise nucleus tracking to monitor changes over time, and detailed intensity extraction to measure fluorescence as a proxy for transcription factor activity. Combining our pipeline with techniques such as fluorescence recovery after photobleaching enables the estimation of vital biophysical parameters, such as transcription factor import and export rates.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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