Cited by 3

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

The efficacy of CRISPR-Cas9-mediated induction of the CCR5delta32 mutation in the human embryo

Kodyleva, T. A., Kirillova, A. O., Tyschik, E. A., Makarov, V. V., Khromov, A. V., Guschin, V. A., Abubakirov, A. N., Rebrikov, D. V., Sukhikh, G. T.·2018·Bulletin of Russian State Medical University

Abstract

The editing of the CCR5 gene in the CD4+ T cell genome is an effective way of preventing HIV-1 proliferation. Very similar strategies can be used to protect the fetus of an HIV-infected female showing a weak response to antiretroviral therapy. Inducing the “natural” CCR5delta32 mutation in a zygote may guard the fetus against HIV infection both in utero and at birth. In this study, we optimize the CRISPR-Cas9 system to induce a homozygous 32-nt deletion similar to the naturally occurring CCR5delta32 allele in the human zygote at the S-phase. Edits were done in the abnormal tripronuclear zygotes unsuitable for IVF. Sixteen tripronuclear zygotes in the S-phase obtained from WT CCR5 donors were injected with an original CRISPR-Cas9 system designed by the authors. Upon injection, the zygotes were transferred into the Blastocyst (COOK) embryo culture medium and cultured for 5 days in a CO2 incubator until blastocysts were formed (approximately 250 cells). Eight zygotes that successfully developed into blastocysts were PCR-genotyped to analyze the efficacy of genome editing. Of 16 zygotes injected with CRISPR-Cas9, only 8 reached the blastocyst stage. PCR genotyping revealed the absence of the initial WT CCR5 variant in 5 of 8 blastocysts (100% CCR5delta32 homozygous). Two had about 3% and one about 20% of WT CCR5 mosaicism. This leads us to conclude that the efficacy of the proposed CRISPR-Cas9 system for the induction of the CCR5delta32 mutation in human embryos is very high producing more than 50% of completely modified embryos.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.24075/brsmu.2018.052

Cites

1 of 1 references verified0 citation errors · 0 not checkable

Statistics

Figures

Fig. 1 gRNAs layout inside the human CCR5 gene
Fig. 1 gRNAs layout inside the human CCR5 geneCC-BY · From the PDF
Fig. 2 Examples of real-time PCR curves for different genotypes: A - two control embryos, B - two mosaic embryos with about 3% of WT CCR5, C - two CCR5delta32 homozygous embryos
Fig. 2 Examples of real-time PCR curves for different genotypes: A - two control embryos, B - two mosaic embryos with about 3% of WT CCR5, C - two CCR5delta32 homozygous embryosCC-BY · From the PDF

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Research works printed but not linked: 14

  1. Yu S, Yao Y, Xiao H, Li J, Liu Q, Yang Y, et al. Simultaneous Knockout of CXCR4 and CCR5 Genes in CD4+ T Cells via CRISPR-Cas9 Confers Resistance to Both X4- and R5-Tropic Human Immunodeficiency Virus Type 1 Infection. Hum Gene Ther. 2018 Jan; 29 (1): 51–67. DOI: 10.1089/hum.2017.032 · DOI
  2. Xu L, Yang H, Gao Y, Chen Z, Xie L, Liu Y, Liu Y, Wang X, Li H, Lai W, He Y, Yao A, Ma L, Shao Y, Zhang B, Wang Ch, Chen H, and Deng H. CRISPR-Cas9-Mediated CCR5 Ablation in Human Hematopoietic Stem/Progenitor Cells Confers HIV-1 Resistance In Vivo. Mol Ther. 2017 Aug 2; 25 (8): 1782–9. DOI: 10.1016/j.ymthe.2017.04.027 · DOI
  3. Haworth KG, Peterson CW, Kiem HP. CCR5-edited gene therapies for HIV cure: Closing the door to viral entry. Cytotherapy. 2017 Nov; 19 (11): 1325–38. DOI: 10.1016/j.jcyt.2017.05.013 · DOI
  4. Liu Z, Chen S, Jin X, Wang Q, Yang K, Li C, et al. Genome editing of the HIV co-receptors CCR5 and CXCR4 by CRISPR-Cas9 protects CD4+ T cells from HIV-1 infection. Cell Biosci. 2017 Sep 9; (7): 47. DOI: 10.1186/s13578-017-0174-2 · DOI · Paper page
  5. Nerys-Junior A, Braga-Dias LP, Pezzuto P, Cotta-de-Almeida V, Tanuri A. Comparison of the editing patterns and editing efficiencies of TALEN and CRISPR-Cas9 when targeting the human CCR5 gene. Genet Mol Biol. 2018 Jan-Mar; 41 (1): 167– 79. DOI: 10.1590/1678-4685-GMB-2017-0065 · DOI
  6. Makokha EP, Songok EM, Orago AA, Koech DK, Chemtai AK, Kobayashi N, et al. Maternal immune responses and risk of infant infection with HIV-1 after a short course Zidovudine in a cohort of HIV-1 infected pregnant women in rural Kenya. East Afr Med J. 2002 Nov; 79 (11): 567–73. · DOI
  7. French CE, Tookey PA, Cortina-Borja M, de Ruiter A, Townsend CL, Thorne C. Influence of short-course antenatal antiretroviral therapy on viral load and mother-to-child transmission in subsequent pregnancies among HIV-infected women. Antivir Ther. 2013; 18 (2): 183–92. DOI: 10.3851/IMP2327 · DOI
  8. Liang P, Xu Y, Zhang X, Ding C, Huang R, Zhang Z, et al. CRISPR-Cas9-mediated gene editing in human tripronuclear zygotes. Protein Cell. 2015 May; 6 (5): 363–72. Epub 2015 Apr 18. DOI: 10.1007/s13238- 015-0153-5 · DOI · Paper page
  9. Tang L, Zeng Y, Du H, Gong M, Peng J, Zhang B, et al. CRISPR-Cas9-mediated gene editing in human zygotes using Cas9 protein. Mol Genet Genomics. 2017 Jun; 292 (3): 525–33. DOI: 10.1007/s00438-017-1299-z. · DOI
  10. Ma H, Marti-Gutierrez N, Park S-W, Wu J, Lee Y, Suzuki K, Koski A, Ji D, Hayama T, Ahmed R, Darby H, Van Dyken C, Li Y, Kang E, Park AR, Kim D, Kim ST, Gong J, Gu Y, Xu X, Battaglia D, Krieg SA, Lee DM, et. al Correction of a pathogenic gene mutation in human embryos. Nature. 2017 Aug 24; 548 (7668): 413–19. DOI: 10.1038/nature23305 · DOI
  11. Liang P, Ding C, Sun H, Xie X, Xu Y, Zhang X, et al. Correction of β-thalassemia mutant by base editor in human embryos. Protein Cell. 2017 Nov; 8 (11): 811–22. DOI: 10.1007/s13238-017-0475-6 · DOI
  12. Joris H, Nagy Z, Van de Velde H, De Vos A, Van Steirteghem A. Intracytoplasmic sperm injection: laboratory set-up and injection procedure. Hum Reprod. 1998 Apr; 13 Suppl 1: 76–86. · DOI
  13. Kofiadi IA, Rebrikov DV, Trofimov DY, Alexeev LP, Khaitov RM. Allelic distribution of the CCR5, CCR2, and SDF1 gene polymorphisms associated with HIV-1/AIDS resistance in Russian populations. Dokl Biol Sci. 2007 Jul-Aug; (415): 320–3. · DOI
  14. Kang X, He W, Huang Y, Yu Q, Chen Y, Gao X, Sun X, Fan Y. Introducing precise genetic modifications into human 3PN embryos by CRISPR/Cas-mediated genome editing. J Assist Reprod Genet. 2016 May; 33 (5):581-588. DOI: 10.1007/s10815-016-0710-8 · DOI

Cited by

Metadata

Authors
Kodyleva, T. A., Kirillova, A. O., Tyschik, E. A., Makarov, V. V., Khromov, A. V., Guschin, V. A., Abubakirov, A. N., Rebrikov, D. V., & Sukhikh, G. T.
Affiliations
  • Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Moscow
  • Lomonosov Moscow State University, Moscow
  • Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Moscow; Pirogov Russian National Research Medical University, Moscow
Venue
Bulletin of Russian State Medical University
Published
2018-10-16
Issue
(4)2018
Pages
70-74
ISSN
  • 2500-1094
  • 2542-1204
Cited by
3
References
1

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review