Efficient and crucial quality control of HAP1 cell ploidy status.
Efficient and crucial quality control of HAP1 cell ploidy status.
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DOI:
10.1242/bio.057174
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发表时间:
2020-11-12
期刊:
影响因子:
2.4
通讯作者:
Aksnes H
中科院分区:
文献类型:
--
作者:
Beigl TB;Kjosås I;Seljeseth E;Glomnes N;Aksnes H
The near-haploid human cell line HAP1 recently became a popular subject for CRISPR/Cas9 editing, since only one allele requires modification. Through the gene-editing service at Horizon Discovery, there are at present more than 7500 edited cell lines available and the number continuously increases. The haploid nature of HAP1 is unstable as cultures become diploid with time. Here, we demonstrated some fundamental differences between haploid and diploid HAP1 cells, hence underlining the need for taking control over ploidy status in HAP1 cultures prior to phenotyping. Consequently, we optimized a procedure to determine the ploidy of HAP1 by flow cytometry in order to obtain diploid cultures and avoid ploidy status as an interfering variable in experiments. Furthermore, in order to facilitate this quality control, we validated a size-based cell sorting procedure to obtain the diploid culture more rapidly. Hence, we provide here two streamlined protocols for quality controlling the ploidy of HAP1 cells and document their validity and necessity. Summary: Sharing an effective procedure to quality control the near-haploid HAP1 cells for standardized comparison to CRISPR/Cas9 modified versions and demonstrating the need for controlling the spontaneous diploidization of HAP1 cultures.
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DOI:
10.1073/pnas.1718336115
发表时间:
2018-04-24
影响因子:
11.1
作者:
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影响因子:
8.8
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DOI:
10.1083/jcb.201701151
发表时间:
2018-07-02
期刊:
The Journal of cell biology
影响因子:
--
作者:
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通讯作者:
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DOI:
10.1083/jcb.201701024
发表时间:
2017-10-02
期刊:
The Journal of cell biology
影响因子:
--
作者:
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通讯作者:
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影响因子:
4
作者:
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通讯作者:
Schauer, Kristine