High-throughput single-cell sequencing with reduced amplification bias

A single-cell, single-nucleus technology, applied in the field of nucleic acid sequencing, can solve problems such as exponential amplification bias, low throughput, and single cell compartmentalization

Pending Publication Date: 2020-05-26
ILLUMINA INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, most methods require compartmentalization of individual cells, which can limit throughput
Second, most amplification methods are PCR-based and therefore subject to exponential amplification bias
However, this method is low-throughput as it requires the preparation of serial libraries from each single cell (Chen et al., 2017, Science 356:189-194)

Method used

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  • High-throughput single-cell sequencing with reduced amplification bias
  • High-throughput single-cell sequencing with reduced amplification bias
  • High-throughput single-cell sequencing with reduced amplification bias

Examples

Experimental program
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preparation example Construction

[0148] Preparation of fixed samples for sequencing

[0149] Multiple indexed fragments can be prepared for sequencing. For example, in those embodiments in which a library of triple-indexed fragments is generated, the triple-indexed fragments are enriched prior to sequencing, typically by immobilization and / or amplification ( figure 2 block 21). Methods for attaching index fragments from one or more sources to a substrate are known in the art. In one embodiment, the indexed fragments are enriched using a plurality of capture oligonucleotides specific for the indexed fragments, and the capture oligonucleotides can be immobilized on the surface of a solid substrate. For example, a capture oligonucleotide can include a first member of a universal binding pair, and wherein the second member of the binding pair is immobilized on the surface of a solid substrate. Likewise, methods for amplifying immobilized dual-indexed fragments include, but are not limited to, bridging amplifi...

Embodiment approach 1

[0200] Embodiment 1. A method for preparing a sequencing library comprising nucleic acids from a plurality of single nuclei or single cells, the method comprising:

[0201] providing a plurality of isolated nuclei or cells in a first plurality of compartments, wherein each compartment comprises a subset of the isolated nuclei or cells, and wherein the nuclei or cells comprise nucleic acid fragments;

[0202] The cell or nucleus introduces a linear amplification mediator;

[0203] amplifying the nucleic acid fragment by linear amplification;

[0204] processing each subset of nuclei or cells to generate indexed nuclei or cells, wherein said processing comprises adding a first compartment-specific indexing sequence to nucleic acid fragments present in said isolated nuclei or cells to generate an indexed sequence in the isolated nuclei or cells an indexed nucleic acid present in a cell, wherein the processing comprises ligation, primer extension, hybridization, amplification or ...

Embodiment approach 2

[0206] Embodiment 2. The method of Embodiment 1, wherein the amplifying occurs prior to the treating.

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Abstract

Provided herein are methods for preparing a sequencing library that includes nucleic acids from a plurality of single cells. In one embodiment, the methods include linear amplification of the nucleicacids. In one embodiment, the sequencing library includes whole genome nucleic acids from the plurality of single cells. In one embodiment, the nucleic acids include three index sequences. Also provided herein are compositions, such as compositions that include the nucleic acids having three index sequences

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the benefit of U.S. Provisional Application Serial No. 62 / 673,023, filed May 17, 2018, and U.S. Provisional Application Serial No. 62 / 821,864, filed March 21, 2019, each of which is hereby incorporated by reference in its entirety. [0003] governmental support [0004] This invention was made with government support under DP1 HG007811 awarded by the National Institutes of Health. The government has certain rights in this invention. technical field [0005] Embodiments of the present disclosure relate to nucleic acid sequencing. In particular, embodiments of the methods and compositions provided herein relate to generating indexed single-cell sequencing libraries and obtaining sequence data therefrom for characterizing rare events, including crossovers and chromosome mis-segregation events. In some embodiments, the method involves resolving cancer heterogeneity at the single-cell level. Bac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12Q1/6869
CPCC12Q1/6806C12N15/1093C12Q1/6869C12Q2531/101C12Q2563/179C12Q2535/122C12Q2563/159C40B40/06C40B50/10C12N15/1065C12N9/1247C12N15/1003C12Q1/68B82Y5/00C40B50/06
Inventor F·J·斯蒂莫斯J·申杜尔殷毅
Owner ILLUMINA INC
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