Evidence map›Paper›PMID 26892171›Full record

ArticleScientific reports2016

Long-term ex vivo maintenance of testis tissues producing fertile sperm in a microfluidic device.

Mitsuru Komeya, Hiroshi Kimura, Hiroko Nakamura, Tetsuhiro Yokonishi, Takuya Sato, Kazuaki Kojima, Kazuaki Hayashi, Kumiko Katagiri, Hiroyuki Yamanaka, Hiroyuki Sanjo and 7 more

Abstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed, 1 pooled it
–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

90 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Article
  6. Ex Vivo Spatiotemporal Characterization of Spermatogenesis in Mouse Testicular Organoids.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  7. Article
  8. In vitro models of the male reproductive system: applications for developmental and reproductive toxicology.Toxicological sciences : an official journal of the Society of Toxicology · 2025
    Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. A new humanHuman reproduction open · 2025
    Article
  17. NAM journal · 2025
    Review
  18. Review
  19. Article
  20. Article

30 more citing papers are in PubMed but not listed here.

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

17 authors.

Mitsuru KomeyaLaboratory of Proteomics, Institute of Molecular Medicine and Life Science, Yokohama City University Association of Medical Science, Yokohama, Kanagawa 236-0004, Japan.
Hiroshi KimuraDepartment of Mechanical Engineering, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan.
Hiroko NakamuraDepartment of Mechanical Engineering, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan.
Tetsuhiro YokonishiLaboratory of Proteomics, Institute of Molecular Medicine and Life Science, Yokohama City University Association of Medical Science, Yokohama, Kanagawa 236-0004, Japan.
Takuya SatoLaboratory of Proteomics, Institute of Molecular Medicine and Life Science, Yokohama City University Association of Medical Science, Yokohama, Kanagawa 236-0004, Japan.
Kazuaki KojimaLaboratory of Proteomics, Institute of Molecular Medicine and Life Science, Yokohama City University Association of Medical Science, Yokohama, Kanagawa 236-0004, Japan.
Kazuaki HayashiLaboratory of Proteomics, Institute of Molecular Medicine and Life Science, Yokohama City University Association of Medical Science, Yokohama, Kanagawa 236-0004, Japan.
Kumiko KatagiriLaboratory of Proteomics, Institute of Molecular Medicine and Life Science, Yokohama City University Association of Medical Science, Yokohama, Kanagawa 236-0004, Japan.
Hiroyuki YamanakaLaboratory of Proteomics, Institute of Molecular Medicine and Life Science, Yokohama City University Association of Medical Science, Yokohama, Kanagawa 236-0004, Japan.
Hiroyuki SanjoLaboratory of Proteomics, Institute of Molecular Medicine and Life Science, Yokohama City University Association of Medical Science, Yokohama, Kanagawa 236-0004, Japan.
Masahiro YaoDepartment of Urology, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa 236-0004, Japan.
Satoshi KamimuraRIKEN, Bioresource Center, Tsukuba, Ibaraki 305-0074, Japan.
Kimiko InoueRIKEN, Bioresource Center, Tsukuba, Ibaraki 305-0074, Japan.
Narumi OgonukiRIKEN, Bioresource Center, Tsukuba, Ibaraki 305-0074, Japan.
Atsuo OguraRIKEN, Bioresource Center, Tsukuba, Ibaraki 305-0074, Japan.
Teruo FujiiInstitute of Industrial Science, University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8505, Japan.
Takehiko OgawaLaboratory of Proteomics, Institute of Molecular Medicine and Life Science, Yokohama City University Association of Medical Science, Yokohama, Kanagawa 236-0004, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In contrast to cell cultures, particularly to cell lines, tissues or organs removed from the body cannot be maintained for long in any culture conditions. Although it is apparent that in vivo regional homeostasis is facilitated by the microvascular system, mimicking such a system ex vivo is difficult and has not been proved effective. Using the culture system of mouse spermatogenesis, we addressed this issue and devised a simple microfluidic device in which a porous membrane separates a tissue from the flowing medium, conceptually imitating the in vivo relationship between the microvascular flow and surrounding tissue. Testis tissues cultured in this device successfully maintained spermatogenesis for 6 months. The produced sperm were functional to generate healthy offspring with micro-insemination. In addition, the tissue kept producing testosterone and responded to stimulation by luteinizing hormone. These data suggest that the microfluidic device successfully created in vivo-like conditions, in which testis tissue maintained its physiologic functions and homeostasis. The present model of the device, therefore, would provide a valuable foundation of future improvement of culture conditions for various tissues and organs, and revolutionize the organ culture method as a whole.

Indexed as

Lab-On-A-Chip DevicesMicrofluidic Analytical TechniquesSpermatogenesisTissue Culture TechniquesAnimalsMaleMiceSpermatozoaTestisTestosteroneTestosterone

Identifiers

PMID26892171
PMCPMC4759809

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.