Low-input and multiplexed microfluidic assay reveals epigenomic variation across cerebellum and prefrontal cortex.

Low-input and multiplexed microfluidic assay reveals epigenomic variation across cerebellum and prefrontal cortex.
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DOI:
10.1126/sciadv.aar8187
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发表时间:
2018-04
期刊:
影响因子:
13.6
通讯作者:
Lu C
Lu C
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Ma S;Hsieh YP;Ma J;Lu C

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A microfluidic technology was developed and used to probe epigenomic differences between prefrontal cortex and cerebellum. Extensive effort is under way to survey the epigenomic landscape of primary ex vivo tissues to establish normal reference data and to discern variation associated with disease. The low abundance of some tissue types and the isolation procedure required to generate a homogenous cell population often yield a small quantity of cells for examination. This difficulty is further compounded by the need to profile a myriad of epigenetic marks. Thus, technologies that permit both ultralow input and high throughput are desired. We demonstrate a simple microfluidic technology, SurfaceChIP-seq, for profiling genome-wide histone modifications using as few as 30 to 100 cells per assay and with up to eight assays running in parallel. We applied the technology to profile epigenomes using nuclei isolated from prefrontal cortex and cerebellum of mouse brain. Our cell type–specific data revealed that neuronal and glial fractions exhibited profound epigenomic differences across the two functionally distinct brain regions.
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