Evidence map›Paper›PMID 30200961›Full record

ArticleBMC biotechnology2018

Development of a vitrification method for preserving human myoblast cell sheets for myocardial regeneration therapy.

Hirotatsu Ohkawara, Shigeru Miyagawa, Satsuki Fukushima, Shin Yajima, Atsuhiro Saito, Hiroshi Nagashima, Yoshiki Sawa

Abstract readEvaluation Study
In one paragraph

Article in BMC biotechnology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Vitrification and storage of oral mucosa epithelial cell sheets.Journal of tissue engineering and regenerative medicine · 2019
    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.

Hirotatsu OhkawaraDepartment of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
Shigeru MiyagawaDepartment of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
Satsuki FukushimaDepartment of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
Shin YajimaDepartment of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
Atsuhiro SaitoDepartment of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
Hiroshi NagashimaLaboratory of Developmental Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Tama-ku, Kawasaki, Kanagawa, Japan.
Yoshiki SawaDepartment of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan. sawa-p@surg1.med.osaka-u.ac.jp.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTissue-engineered cardiac constructs have potential in the functional recovery of heart failure; however, the preservation of these constructs is crucial for the development and widespread application of this treatment. We hypothesized that tissue-engineered skeletal myoblast (SMB) constructs may be preserved by vitrification to conserve biological function and structure.

resultsScaffold-free cardiac cell-sheet constructs were prepared from SMBs and immersed in a vitrification solution containing ethylene glycol, sucrose, and carboxyl poly-L-lysine. The cell sheet was wrapped in a thin film and frozen rapidly above liquid nitrogen to achieve vitrification (vitrification group, n = 8); fresh, untreated SMB sheets (fresh group, n = 8) were used as the control. The cryopreserved SMB sheets were thawed at 2 days, 1 week, 1 month, and 3 months after cryopreservation for assessment. Thawed, cryopreserved SMB sheets were transplanted into rat hearts in a myocardial infarction nude rat model, and their effects on cardiac function were evaluated. Cell viability in the cardiac constructs of the vitrification group was comparable to that of the fresh group, independent of the period of cryopreservation (p > 0.05). The structures of the cell-sheet constructs, including cell-cell junctions such as desmosomes, extracellular matrix, and cell membranes, were maintained in the vitrification group for 3 months. The expression of cytokine genes and extracellular matrix proteins (fibronectin, collagen I, N-cadherin, and integrin α5) showed similar levels in the vitrification and fresh groups. Moreover, in an in vivo experiment, the ejection fraction was significantly improved in animals treated with the fresh or cryopreserved constructs as compared to that in the sham-treated group (p < 0.05).

conclusionsOverall, these results show that the vitrification method proposed here preserves the functionality and structure of scaffold-free cardiac cell-sheet constructs using human SMBs after thawing, suggesting the potential clinical application of this method in cell-sheet therapy.

Indexed as

AdultAgedAnimalsCell SurvivalCryopreservationExtracellular MatrixFemaleHumansMaleMiddle AgedMyoblastsMyocardial InfarctionRatsRats, Inbred F344Rats, NudeRegenerationAnimal modelCell sheet preservationCryopreservationFunctional recoveryHeart failureMyocardial infarctionScaffold-free constructSkeletal myoblastTissue engineeringVitrification

Identifiers

PMID30200961
PMCPMC6131806

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.