Mitochondrial Transfer by Photothermal Nanoblade Restores Metabolite Profile in Mammalian Cells.

Mitochondrial Transfer by Photothermal Nanoblade Restores Metabolite Profile in Mammalian Cells.
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DOI:
10.1016/j.cmet.2016.04.007
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发表时间:
2016-05-10
期刊:
影响因子:
29
通讯作者:
Teitell MA
Teitell MA
中科院分区:
生物学1区
文献类型:
--
作者:
Wu TH;Sagullo E;Case D;Zheng X;Li Y;Hong JS;TeSlaa T;Patananan AN;McCaffery JM;Niazi K;Braas D;Koehler CM;Graeber TG;Chiou PY;Teitell MA

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mtDNA sequence alterations are challenging to generate but desirable for basic studies and potential correction of mtDNA diseases. Here, we report a new method for transferring isolated mitochondria into somatic mammalian cells using a photothermal nanoblade, which bypasses endocytosis and cell fusion. The nanoblade rescued the pyrimidine auxotroph phenotype and respiration of ρ0 cells that lack mtDNA. Three stable isogenic nanoblade-rescued clones grown in uridine-free medium showed distinct bioenergetics profiles. Rescue lines 1 and 3 reestablished nucleus-encoded anapleurotic and catapleurotic enzyme gene expression patterns and had metabolite profiles similar to the parent cells from which the ρ0 recipient cells were derived. By contrast, rescue line 2 retained a ρ0 cell metabolic phenotype despite growth in uridine-free selection. The known influence of metabolite levels on cellular processes, including epigenome modifications and gene expression, suggest metabolite profiling can help assess the quality and function of mtDNA modified cells.
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