Evidence map›Paper›PMID 33111489›Full record

ArticleAmerican journal of medical genetics. Part C, Seminars in medical genetics2020

Human recombinant lysosomal β-Hexosaminidases produced in Pichia pastoris efficiently reduced lipid accumulation in Tay-Sachs fibroblasts.

Angela J Espejo-Mojica, Alexander Rodríguez-López, Rong Li, Wei Zheng, Carlos J Alméciga-Díaz, Cindy Dulcey-Sepúlveda, Germán Combariza, Luis A Barrera

Open access · greenAbstract read
In one paragraph

Article in American journal of medical genetics. Part C, Seminars in medical genetics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.8field-weighted citation impact, top 27% of its field
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

8 citing papers in PubMed, 14 citations in OpenAlex.

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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

8 authors at 2 institutions in 2 countries.

Angela J Espejo-MojicaInstitute for the Study of Inborn Errors of Metabolism, Faculty of Science, Pontificia Universidad Javeriana, Bogotá, Colombia.ORCID 0000-0001-9670-6435
Alexander Rodríguez-LópezInstitute for the Study of Inborn Errors of Metabolism, Faculty of Science, Pontificia Universidad Javeriana, Bogotá, Colombia.ORCID 0000-0001-5409-3466
Rong LiNational Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA.
Wei ZhengNational Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA.ORCID 0000-0003-1034-0757
Carlos J Alméciga-DíazInstitute for the Study of Inborn Errors of Metabolism, Faculty of Science, Pontificia Universidad Javeriana, Bogotá, Colombia.ORCID 0000-0001-6484-1173
Cindy Dulcey-SepúlvedaDepartment of Mathematics, Faculty of Science, Pontificia Universidad Javeriana, Bogotá, Colombia.
Germán CombarizaDepartment of Mathematics, Faculty of Science, Pontificia Universidad Javeriana, Bogotá, Colombia.ORCID 0000-0002-1878-665X
Luis A BarreraInstitute for the Study of Inborn Errors of Metabolism, Faculty of Science, Pontificia Universidad Javeriana, Bogotá, Colombia.ORCID 0000-0001-8287-0197
Pontificia Universidad Javeriana · CONational Institutes of Health · US

Funding

Drug Repurposing Screening for Rare and Neglected DiseasesZIATR000018 · NCATS · NATIONAL CENTER FOR ADVANCING TRANSLATIONAL SCIENCES · PI ZHENG, WEI · 2015 to 2025
$24.6M
Intramural NIH HHS ZIA TR000018
6 · The paper itself

Abstract

GM2 gangliosidosis, Tay-Sachs and Sandhoff diseases, are lysosomal storage disorders characterized by the lysosomal accumulation of GM2 gangliosides. This accumulation is due to deficiency in the activity of the β-hexosaminidases Hex-A or Hex-B, which are dimeric hydrolases formed by αβ or ββ subunits, respectively. These disorders show similar clinical manifestations that range from mild systemic symptoms to neurological damage and premature death. There is still no effective therapy for GM2 gangliosidoses, but some therapeutic alternatives, as enzyme replacement therapy, have being evaluated. Previously, we reported the production of active human recombinant β-hexosaminidases (rhHex-A and rhHex-B) in the methylotrophic yeast Pichia pastoris. In this study, we evaluated in vitro the cellular uptake, intracellular delivery to lysosome, and reduction of stored substrates. Both enzymes were taken-up via endocytic pathway mediated by mannose and mannose-6-phosphate receptors and delivered to lysosomes. Noteworthy, rhHex-A diminished the levels of stored lipids and lysosome mass in fibroblasts from Tay-Sachs patients. Overall, these results confirm the potential of P. pastoris as host to produce recombinant β-hexosaminidases intended to be used in the treatment of GM2 gangliosidosis.

Indexed as

HexosaminidasesSandhoff DiseaseFibroblastsHumansLysosomesSaccharomycetalesHexosaminidasesenzyme replacement therapyGM2 gangliosidosisPichia pastorisrecombinant hexosaminidases

Identifiers

PMID33111489
PMCPMC8045741
OpenAlexW3095025299

What OpenQuestion holds

Textmetadata
LicenceTDM
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.