Evidence map›Paper›PMID 34650094›Full record

ArticleNPJ Regenerative medicine2021

Development of an optogenetic gene sensitive to daylight and its implications in vision restoration.

Yoshito Watanabe, Eriko Sugano, Kitako Tabata, Akito Hatakeyama, Tetsuya Sakajiri, Tomokazu Fukuda, Taku Ozaki, Tomoya Suzuki, Tatsuki Sayama, Hiroshi Tomita

Abstract read
In one paragraph

Article in NPJ Regenerative medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Sensing a rainbow of colors: algal photoreceptors.Frontiers in plant science · 2025
    Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Optogenetic Therapy for Visual Restoration.International journal of molecular sciences · 2022
    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

10 authors.

Yoshito WatanabeGraduate Course in Biological Sciences, Iwate University Division of Science and Engineering, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan.
Eriko SuganoGraduate Course in Biological Sciences, Iwate University Division of Science and Engineering, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan. sseriko@iwate-u.ac.jp.ORCID http://orcid.org/0000-0001-6732-717X
Kitako TabataGraduate Course in Biological Sciences, Iwate University Division of Science and Engineering, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan.ORCID http://orcid.org/0000-0001-7048-917X
Akito HatakeyamaGraduate Course in Biological Sciences, Iwate University Division of Science and Engineering, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan.
Tetsuya SakajiriDepartment of Nutrition, Kyushu Nutrition Welfare University, 5-1-1 Shimoitozu, Kitakyushu Kokurakita-Ku, Fukuoka, 803-0846, Japan.ORCID http://orcid.org/0000-0003-4095-5656
Tomokazu FukudaGraduate Course in Biological Sciences, Iwate University Division of Science and Engineering, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan.
Taku OzakiGraduate Course in Biological Sciences, Iwate University Division of Science and Engineering, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan.ORCID http://orcid.org/0000-0001-8183-5453
Tomoya SuzukiGraduate Course in Biological Sciences, Iwate University Division of Science and Engineering, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan.ORCID http://orcid.org/0000-0002-7414-8636
Tatsuki SayamaGraduate Course in Biological Sciences, Iwate University Division of Science and Engineering, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan.
Hiroshi TomitaGraduate Course in Biological Sciences, Iwate University Division of Science and Engineering, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan. htomita@iwate-u.ac.jp.ORCID http://orcid.org/0000-0003-1051-2301

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Optogenetic gene-mediated therapy for restoring vision is thought to be a useful treatment for blind patients. However, light sensitivity achieved using this gene therapy is inferior to that of daylight vision. To increase light sensitivity, we designed three mutants using a bioinformatics approach. Nucleotide sequences encoding two sites in the extracellular loops (ex1, ex3) of mVChR1 close to simulated ion-conducting pathways were replaced by homologous amino acid-encoding sequences of ChR1 or ChR2. The light sensitivity of ex3mV1 was higher than that of mVChR1 at 405-617 nm. Visual responses were restored in Royal College of Surgeons rats with genetically degenerating photoreceptor cells transfected with ex3mV1Co, wherein transmembrane of sixth (TM6) in ex3mV1 was additionally replaced with the corresponding domain of CoChR; these rats responded to light in the order of μW/mm

Identifiers

PMID34650094
PMCPMC8516861

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Registered trials

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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.