Evidence map›Paper›PMID 40362571›Full record

ArticleInternational journal of molecular sciences2025

CRISPR/nCas9-Edited CD34+ Cells Rescue Mucopolysaccharidosis IVA Fibroblasts Phenotype.

Angélica María Herreno-Pachón, Andrés Felipe Leal, Shaukat Khan, Carlos Javier Alméciga-Díaz, Shunji Tomatsu

Abstract read
In one paragraph

Article in International journal of molecular sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Natural History of Morquio A Syndrome.Journal of inherited metabolic disease · 2026
    Review
  2. Review
  3. Recent advances in mucopolysaccharidosis IVA treatment.Orphanet journal of rare diseases · 2025
    Review
  4. Review
  5. 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

5 authors.

Angélica María Herreno-PachónNemours Children's Health, Wilmington, DE 19803, USA.ORCID 0000-0002-5962-4817
Andrés Felipe LealNemours Children's Health, Wilmington, DE 19803, USA.ORCID 0000-0001-5956-1986
Shaukat KhanNemours Children's Health, Wilmington, DE 19803, USA.
Carlos Javier Alméciga-DíazInstitute for the Study of Inborn Errors of Metabolism, Faculty of Science, Pontificia Universidad Javeriana, Bogotá 110231, DC, Colombia.ORCID 0000-0001-6484-1173
Shunji TomatsuNemours Children's Health, Wilmington, DE 19803, USA.ORCID 0000-0002-0673-2160

Funding

NIH HHS 1R01HD102545-01A1
6 · The paper itself

Abstract

Mucopolysaccharidosis (MPS) IVA is a bone-affecting lysosomal storage disease (LSD) caused by impaired degradation of the glycosaminoglycans (GAGs) keratan sulfate (KS) and chondroitin 6-sulfate (C6S) due to deficient N-acetylgalactosamine-6-sulfatase (GALNS) enzyme activity. Previously, we successfully developed and validated a CRISPR/nCas9-based gene therapy (GT) to insert an expression cassette at the AAVS1 and ROSA26 loci in human MPS IVA fibroblasts and MPS IVA mice, respectively. In this study, we have extended our approach to evaluate the effectiveness of our CRISPR/nCas9-based GT in editing human CD34+ cells to mediate cross-correction of MPS IVA fibroblasts. CD34+ cells were electroporated with the CRISPR/nCas9 system, targeting the AAVS1 locus. The nCas9-mediated on-target donor template insertion, and the stemness of the CRISPR/nCas-edited CD34+ cells was evaluated. Additionally, MPS IVA fibroblasts were co-cultured with CRISPR/nCas-edited CD34+ cells to assess cross-correction. CRISPR/nCas9-based gene editing did not affect the stemness of CD34+ cells but did lead to supraphysiological levels of the GALNS enzyme. Upon co-culture, MPS IVA fibroblasts displayed a significant increase in the GALNS enzyme activity along with lysosomal mass reduction, pro-oxidant profile amelioration, mitochondrial mass recovery, and pro-apoptotic and pro-inflammatory profile improvement. These results show the potential of our CRISPR/nCas9-based GT to edit CD34+ cells to mediate cross-correction.

Indexed as

Antigens, CD34CRISPR-Cas SystemsFibroblastsGene EditingMucopolysaccharidosis IVAnimalsChondroitinsulfatasesGenetic TherapyHumansMicePhenotypeAntigens, CD34ChondroitinsulfatasesCD34+ cellsCRISPR/nCas9gene editingMPS IVA

Identifiers

PMID40362571
PMCPMC12072265

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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.