mtFociCounter for automated single-cell mitochondrial nucleoid quantification and reproducible foci analysis.
mtFociCounter for automated single-cell mitochondrial nucleoid quantification and reproducible foci analysis.
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DOI:
10.1093/nar/gkad864
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发表时间:
2023-11-27
影响因子:
14.9
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中科院分区:
文献类型:
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Mitochondrial DNA (mtDNA) encodes the core subunits for OXPHOS, essential in near-all eukaryotes. Packed into distinct foci (nucleoids) inside mitochondria, the number of mtDNA copies differs between cell-types and is affected in several human diseases. Currently, common protocols estimate per-cell mtDNA-molecule numbers by sequencing or qPCR from bulk samples. However, this does not allow insight into cell-to-cell heterogeneity and can mask phenotypical sub-populations. Here, we present mtFociCounter, a single-cell image analysis tool for reproducible quantification of nucleoids and other foci. mtFociCounter is a light-weight, open-source freeware and overcomes current limitations to reproducible single-cell analysis of mitochondrial foci. We demonstrate its use by analysing 2165 single fibroblasts, and observe a large cell-to-cell heterogeneity in nucleoid numbers. In addition, mtFociCounter quantifies mitochondrial content and our results show good correlation (R = 0.90) between nucleoid number and mitochondrial area, and we find nucleoid density is less variable than nucleoid numbers in wild-type cells. Finally, we demonstrate mtFociCounter readily detects differences in foci-numbers upon sample treatment, and applies to Mitochondrial RNA Granules and superresolution microscopy. mtFociCounter provides a versatile solution to reproducibly quantify cellular foci in single cells and our results highlight the importance of accounting for cell-to-cell variance and mitochondrial context in mitochondrial foci analysis.
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影响因子:
9.8
作者:
McQuin C;Goodman A;Chernyshev V;Kamentsky L;Cimini BA;Karhohs KW;Doan M;Ding L;Rafelski SM;Thirstrup D;Wiegraebe W;Singh S;Becker T;Caicedo JC;Carpenter AE
通讯作者:
Carpenter AE
影响因子:
14.9
作者:
Pohjoismaki, Jaakko L. O.;Wanrooij, Sjoerd;Hyvarinen, Anne K.;Goffart, Steffi;Holt, Ian J.;Spelbrink, Johannes N.;Jacobs, Howard T.
通讯作者:
Jacobs, Howard T.
影响因子:
4.4
作者:
Bonekamp NA;Jiang M;Motori E;Garcia Villegas R;Koolmeister C;Atanassov I;Mesaros A;Park CB;Larsson NG
通讯作者:
Larsson NG
影响因子:
9.8
作者:
Gäbelein CG;Feng Q;Sarajlic E;Zambelli T;Guillaume-Gentil O;Kornmann B;Vorholt JA
通讯作者:
Vorholt JA
影响因子:
5.8
作者:
Arganda-Carreras, Ignacio;Kaynig, Verena;Seung, H. Sebastian
通讯作者:
Seung, H. Sebastian