Evidence map›Paper›PMID 30936320›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

Cryoprotectant-free cryopreservation of mammalian cells by superflash freezing.

Yoshitake Akiyama, Masato Shinose, Hiroki Watanabe, Shigeru Yamada, Yasunari Kanda

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
8.0field-weighted citation impact, top 2% 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

28 citing papers in PubMed, 80 citations in OpenAlex.

  1. Article
  2. Article
  3. Thermodynamic Principles of Emerging Cryopreservation Technologies.Methods in molecular biology (Clifton, N.J.) · 2026
    Review
  4. Microfluidic Platforms for Cryopreservation.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Conduction-Dominated Cryomesh for Organism Vitrification.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  13. [Droplet freeze-thawing system based on solid surface vitrification and laser rewarming].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2023
    Article
  14. Technologies for Vitrification Based Cryopreservation.Bioengineering (Basel, Switzerland) · 2023
    Review
  15. Review
  16. Review
  17. Article
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  20. Review
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

5 authors at 2 institutions in 1 country.

Yoshitake AkiyamaDepartment of Mechanical Engineering and Robotics, Faculty of Textile Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda, Nagano 386-8567, Japan; aki@shinshu-u.ac.jp.ORCID 0000-0001-7657-0921
Masato ShinoseDepartment of Mechanical Engineering and Robotics, Faculty of Textile Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda, Nagano 386-8567, Japan.
Hiroki WatanabeDepartment of Mechanical Engineering and Robotics, Faculty of Textile Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda, Nagano 386-8567, Japan.
Shigeru YamadaDivision of Pharmacology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan.
Yasunari KandaDivision of Pharmacology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan.
Shinshu University · JPNational Institute of Health Sciences · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cryopreservation is widely used to maintain backups of cells as it enables the semipermanent storage of cells. During the freezing process, ice crystals that are generated inside and outside the cells can lethally damage the cells. All conventional cryopreservation methods use at least one cryoprotective agent (CPA) to render water inside and outside the cells vitreous or nanocrystallized (near-vitrification) without forming damaging ice crystals. However, CPAs should ideally be avoided due to their cytotoxicity and potential side effects on the cellular state. Herein, we demonstrate the CPA-free cryopreservation of mammalian cells by ultrarapid cooling using inkjet cell printing, which we named superflash freezing (SFF). The SFF cooling rate, which was estimated by a heat-transfer stimulation, is sufficient to nearly vitrify the cells. The experimental results of Raman spectroscopy measurements, and observations with an ultrahigh-speed video camera support the near-vitrification of the droplets under these conditions. Initially, the practical utility of SFF was demonstrated on mouse fibroblast 3T3 cells, and the results were comparable to conventional CPA-assisted methods. Then, the general viability of this method was confirmed on mouse myoblast C2C12 cells and rat primary mesenchymal stem cells. In their entirety, the thus-obtained results unequivocally demonstrate that CPA-free cell cryopreservation is possible by SFF. Such a CPA-free cryopreservation method should be ideally suited for most cells and circumvent the problems typically associated with the addition of CPAs.

Indexed as

Vitrification3T3 CellsAnimalsBioprintingCell SurvivalCryopreservationMicecryopreservationcryoprotectant agent-freeinkjet cell printingsuperflash freezingvitrification

Identifiers

PMID30936320
PMCPMC6475437
OpenAlexW2928324755

What OpenQuestion holds

Textmetadata
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.