Evidence map›Paper›PMID 36577067›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2023

High-frequency and functional mitochondrial DNA mutations at the single-cell level.

Xiaoxian Guo, Weilin Xu, Weiping Zhang, Cuiping Pan, Anna E Thalacker-Mercer, Hongxiang Zheng, Zhenglong Gu

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
11.0field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 109 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Review
  9. Review
  10. Review
  11. Biomarkers of ageing of humans and non-human primates.Nature reviews. Molecular cell biology · 2025
    Review
  12. Review
  13. Review
  14. Article
  15. Review
  16. Review
  17. Review
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Xiaoxian GuoDivision of Nutritional Sciences, Cornell University, Ithaca, NY 14853.
Weilin XuDivision of Nutritional Sciences, Cornell University, Ithaca, NY 14853.
Weiping ZhangDivision of Nutritional Sciences, Cornell University, Ithaca, NY 14853.
Cuiping PanGreater Bay Area Institute of Precision Medicine, Fudan University, Nansha District, Guangzhou 511400, China.
Anna E Thalacker-MercerDivision of Nutritional Sciences, Cornell University, Ithaca, NY 14853.
Hongxiang ZhengSchool of Life Sciences, Fudan University, Shanghai 200433, China.
Zhenglong GuDivision of Nutritional Sciences, Cornell University, Ithaca, NY 14853.
Cornell University · USFudan University · CNChinese Academy of Sciences · CN

Funding

Evolution of gene regulation through overlapping regulatory mechanismsR01GM117190 · NIGMS · CORNELL UNIVERSITY · PI GU, ZHENGLONG · 2017 to 2020
$1.3M
NIGMS NIH HHS R01 GM117190
6 · The paper itself

Abstract

Decline in mitochondrial function underlies aging and age-related diseases, but the role of mitochondrial DNA (mtDNA) mutations in these processes remains elusive. To investigate patterns of mtDNA mutations, it is particularly important to quantify mtDNA mutations and their associated pathogenic effects at the single-cell level. However, existing single-cell mtDNA sequencing approaches remain inefficient due to high cost and low mtDNA on-target rates. In this study, we developed a cost-effective mtDNA targeted-sequencing protocol called single-cell sequencing by targeted amplification of multiplex probes (scSTAMP) and experimentally validated its reliability. We then applied our method to assess single-cell mtDNA mutations in 768 B lymphocytes and 768 monocytes from a 76-y-old female. Across 632 B lymphocyte and 617 monocytes with medium mtDNA coverage over >100×, our results indicated that over 50% of cells carried at least one mtDNA mutation with variant allele frequencies (VAFs) over 20%, and that cells carried an average of 0.658 and 0.712 such mutation for B lymphocytes and monocytes, respectively. Surprisingly, more than 20% of the observed mutations had VAFs of over 90% in either cell population. In addition, over 60% of the mutations were in protein-coding genes, of which over 70% were nonsynonymous, and more than 50% of the nonsynonymous mutations were predicted to be highly pathogenic. Interestingly, about 80% of the observed mutations were singletons in the respective cell populations. Our results revealed mtDNA mutations with functional significance might be prevalent at advanced age, calling further investigation on age-related mtDNA mutation dynamics at the single-cell level.

Indexed as

DNA, MitochondrialMitochondriaFemaleHumansMutationReproducibility of ResultsDNA, Mitochondrialagingmitochondrial DNAsingle cell

Identifiers

PMID36577067
PMCPMC9910596
OpenAlexW4313312049

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.