Molecular profiling of single organelles for quantitative analysis of cellular heterogeneity.

Molecular profiling of single organelles for quantitative analysis of cellular heterogeneity.
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DOI:
10.1038/s41598-017-06936-z
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发表时间:
2017-07-26
期刊:
影响因子:
4.6
通讯作者:
Prasad PN
Prasad PN
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Kuzmin AN;Levchenko SM;Pliss A;Qu J;Prasad PN

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Recent developments in Raman spectroscopy instrumentation and data processing algorithms have led to the emergence of Ramanomics - an independent discipline with unprecedented capabilities to map the distribution of distinct molecular groups in live cells. Here, we introduce a method for probing the absolute concentrations of proteins, RNA and lipids in single organelles of live cultured cells by biomolecular component analysis using microRaman data. We found significant cell-to-cell variations in the molecular profiles of organelles, thus providing a physiologically relevant set of markers of cellular heterogeneity. At the same cell the molecular profiles of different organelles can strongly correlate, reflecting tight coordination of their functions. This correlation was significant in WI-38 diploid fibroblasts and weak in HeLa cells, indicating profound differences in the regulation of biochemical processes in these cell lines.
免疫反应中的异质性:从种群到单个细胞。
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