Evidence map›Paper›PMID 32637447›Full record

ArticleMolecular therapy. Methods & clinical development2020

Role of Essential Metal Ions in AAV Vector-Mediated Transduction.

Himanshu K Rambhai, Frederick J Ashby, Keyun Qing, Arun Srivastava

Open access · goldAbstract read
In one paragraph

Article in Molecular therapy. Methods & clinical development, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

9 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Human gene therapy · 2024
    Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
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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

4 authors at 2 institutions in 1 country.

Himanshu K RambhaiDivision of Cellular and Molecular Therapy, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32611-3633, USA.
Frederick J AshbyDivision of Cellular and Molecular Therapy, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32611-3633, USA.
Keyun QingDivision of Cellular and Molecular Therapy, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32611-3633, USA.
Arun SrivastavaDivision of Cellular and Molecular Therapy, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32611-3633, USA.
University of Florida · USFlorida College · US

Funding

Next Generation of Recombinant AAV Serotype Vectors for Gene TherapyR01HL097088 · NHLBI · UNIVERSITY OF FLORIDA · PI GAO, GUANGPING, HERZOG, ROLAND W. · 2010 to 2018
$5.4M
Mechanism of high-efficiency transduction of hepatocytes by optimized AAV vectorsR01GM119186 · NIGMS · UNIVERSITY OF FLORIDA · PI ASLANIDI, GEORGE V, SRIVASTAVA, ARUN · 2017 to 2021
$1.5M
Safety and efficacy of optimized AAV3 vectors in murine and NHP liversR21EB015684 · NIBIB · UNIVERSITY OF FLORIDA · PI GAO, GUANGPING, SRIVASTAVA, ARUN · 2012 to 2013
$432k
AAV2 and hepatocellular carcinomaR21AI131328 · NIAID · UNIVERSITY OF FLORIDA · PI SRIVASTAVA, ARUN · 2017 to 2018
$408k
Development of Optimized AAV Serotype Vectors for Human Gene TherapyR41AI122735 · NIAID · MEDOSOME BIOTEC, LLC · PI SRIVASTAVA, ARUN · 2016 to 2016
$294k
NHLBI NIH HHS R01 HL097088NIAID NIH HHS R21 AI131328NIAID NIH HHS R41 AI122735NIBIB NIH HHS R21 EB015684NIGMS NIH HHS R01 GM119186
6 · The paper itself

Abstract

Metal elements are essential components of approximately half of all cellular proteins, and approximately one-third of all known enzymes thus far are metalloenzymes. Several cellular proteins and enzymes undoubtedly impact the transduction efficiency of recombinant adeno-associated virus (AAV) vectors, but the precise role of metal ions in this process has not been studied in detail. In the present studies, we systematically evaluated the effects of all 10 essential metal ions (calcium, cobalt, copper, iron, magnesium, manganese, molybdenum, potassium, sodium, and zinc) on the transduction efficiency of AAV vectors. We report herein that five essential metal ions (iron, magnesium, manganese, molybdenum, and sodium) had little to no effect, and calcium strongly inhibited the transduction efficiency of AAV2 vectors. Whereas copper and potassium increased the transduction efficiency by ∼5-fold and ∼2-fold, respectively, at low concentrations, both essential metals were strongly inhibitory at higher concentrations. Calcium also inhibited the transduction efficiency by ∼3-fold. Two metal ions (cobalt and zinc) increased the transduction efficiency up to ∼10-fold in a dose-dependent manner. The combined use of cobalt and zinc resulted in more than an additive effect on AAV2 vector transduction efficiency (∼30-fold). The transduction efficiency of AAV serotypes 1 through 6 (AAV1-AAV6) vectors was also augmented by zinc. Similarly, the transduction of both single-stranded (ss) and self-complementary (sc) AAV3 vectors was enhanced by zinc. Zinc treatment also led to a dose-dependent increase in expression of a therapeutic protein, the human clotting factor IX (hF.IX), mediated by scAAV3 vectors in a human hepatic cell line. This simple strategy of essential metal ion-mediated enhancement may be useful to lower the dose of AAV vectors for their optimal use in human gene therapy.

Identifiers

PMID32637447
PMCPMC7321778
OpenAlexW3026795448

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.