Evidence map›Paper›PMID 27725344›Full record

ArticleThe Journal of reproduction and development2017

Production of α1,3-galactosyltransferase and cytidine monophosphate-N-acetylneuraminic acid hydroxylase gene double-deficient pigs by CRISPR/Cas9 and handmade cloning.

Hanchao Gao, Chengjiang Zhao, Xi Xiang, Yong Li, Yanli Zhao, Zesong Li, Dengke Pan, Yifan Dai, Hidetaka Hara, David K C Cooper and 2 more

Abstract read
In one paragraph

Article in The Journal of reproduction and development, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing 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

25 citing papers in PubMed.

  1. CRISPR-Cas9 in the Tailoring of Genetically Engineered Animals.Current issues in molecular biology · 2025
    Review
  2. Article
  3. Review
  4. Advances in pig models of human diseases.Animal models and experimental medicine · 2022
    Review
  5. Genetically engineered pigs for xenotransplantation: Hopes and challenges.Frontiers in cell and developmental biology · 2022
    Review
  6. Article
  7. Article
  8. Application of CRISPR/Cas9 System in Establishing Large Animal Models.Frontiers in cell and developmental biology · 2022
    Review
  9. Current status of the application of gene editing in pigs.The Journal of reproduction and development · 2021
    Review
  10. CRISPR/Cas Technology in Pig-to-Human Xenotransplantation Research.International journal of molecular sciences · 2021
    Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Review
  19. [Research progress of producing genetically modified pigs by CRISPR/Cas9 in the medical field].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2018
    Review
  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

12 authors.

Hanchao GaoShenzhen Xenotransplantation Medical Engineering Research and Development Center, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China.
Chengjiang Zhao
Xi Xiang
Yong Li
Yanli Zhao
Zesong Li
Dengke Pan
Yifan Dai
Hidetaka Hara
David K C Cooper
Zhiming Cai
Lisha Mou

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gene-knockout pigs hold great promise as a solution to the shortage of organs from donor animals for xenotransplantation. Several groups have generated gene-knockout pigs via clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated 9 (Cas9) and somatic cell nuclear transfer (SCNT). Herein, we adopted a simple and micromanipulator-free method, handmade cloning (HMC) instead of SCNT, to generate double gene-knockout pigs. First, we applied the CRISPR/Cas9 system to target α1,3-galactosyltransferase (GGTA1) and cytidine monophosphate-N-acetylneuraminic acid hydroxylase (CMAH) genes simultaneously in porcine fetal fibroblast cells (PFFs), which were derived from wild-type Chinese domestic miniature Wuzhishan pigs. Cell colonies were obtained by screening and were identified by Surveyor assay and sequencing. Next, we chose the GGTA1/CMAH double-knockout (DKO) cells for HMC to produce piglets. As a result, we obtained 11 live bi-allelic GGTA1/CMAH DKO piglets with the identical phenotype. Compared to cells from GGTA1-knockout pigs, human antibody binding and antibody-mediated complement-dependent cytotoxicity were significantly reduced in cells from GGTA1/CMAH DKO pigs, which demonstrated that our pigs would exhibit reduced humoral rejection in xenotransplantation. These data suggested that the combination of CRISPR/Cas9 and HMC technology provided an efficient and new strategy for producing pigs with multiple genetic modifications.

Indexed as

CRISPR-Cas SystemsAllelesAnimalsAnimals, Genetically ModifiedAnimals, NewbornAntibodiesCloning, MolecularCumulus CellsFibroblastsGalactosyltransferasesGene Knockout TechniquesGenotypeImmunoglobulin GLeukocytes, MononuclearMixed Function OxygenasesNuclear Transfer TechniquesAntibodiesCMPacetylneuraminate monooxygenaseGalactosyltransferasesImmunoglobulin GMixed Function OxygenasesN-acetyllactosaminide alpha-1,3-galactosyltransferase

Identifiers

PMID27725344
PMCPMC5320426

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.