Evidence map›Paper›PMID 34504153›Full record

ArticleScientific reports2021

Heterologous production of hyaluronic acid in Nicotiana tabacum hairy roots expressing a human hyaluronan synthase 2.

Arezoo Nazeri, Ali Niazi, Alireza Afsharifar, Seyed Mohsen Taghavi, Ali Moghadam, Farzaneh Aram

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 29% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Enhancing Withanolide Production in thePlants (Basel, Switzerland) · 2024
    Review
  4. Review
  5. Review
  6. Prospective bacterial and fungal sources of hyaluronic acid: A review.Computational and structural biotechnology journal · 2022
    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

6 authors at 1 institution in 1 country.

Arezoo NazeriInstitute of Biotechnology, Shiraz University, Shiraz, Iran. arezoonazeri1@gmail.com.
Ali NiaziInstitute of Biotechnology, Shiraz University, Shiraz, Iran. niazi@shirazu.ac.ir.
Alireza AfsharifarPlant Virology Research Center, College of Agriculture, Shiraz University, Shiraz, Iran.
Seyed Mohsen TaghaviDepartment of Plant Protection, College of Agriculture, Shiraz University, Shiraz, Iran.
Ali MoghadamInstitute of Biotechnology, Shiraz University, Shiraz, Iran.
Farzaneh AramInstitute of Biotechnology, Shiraz University, Shiraz, Iran.
Shiraz University · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hyaluronic acid (HA), a unique polysaccharide with excellent Physico-chemical properties, is broadly used in pharmaceutical, biomedical, and cosmetic fields. It is widely present in all vertebrates, certain bacterial strains, and even viruses while it is not found in plants, fungi, and insects. HA is naturally synthesized by a class of integral membrane proteins called Hyaluronic acid synthase (HAS). Thus far, industrial production of HA is carried out based on either extraction from animal sources or large-scale microbial fermentation. The major drawbacks to using these systems are contamination with pathogens and microbial toxins. Recently, the production of HA through recombinant systems has received considerable attention. Plants are eco-friendly ideal expression systems for biopharmaceuticals production. In this study, the optimized human hyaluronic acid synthase2 (hHAS2) sequence was transformed into Nicotiana tabacum using Agrobacterium rhizogenes. The highest rhHAS2 concentration of 65.72 ng/kg (wet weight) in transgenic tobacco hairy roots was measured by the human HAS2 ELISA kit. The HA production in the transgenic hairy roots was verified by scanning electron microscope (SEM) and quantified by the HA ELISA kit. The DPPH radical scavenging activity of HA with the highest concentration of 0.56 g/kg (wet weight) showed a maximum activity of 46%. Gel Permeation Chromatography (GPC) analyses revealed the high molecular weight HA (HMW-HA) with about > 0.8 MDa.

Indexed as

AgrobacteriumBase SequenceBiological ProductsChromatography, GelEnzyme-Linked Immunosorbent AssayHumansHyaluronan SynthasesHyaluronic AcidMicroscopy, Electron, ScanningMolecular WeightNicotianaPlant RootsPlants, Genetically ModifiedTransformation, GeneticBiological ProductsHAS2 protein, humanHyaluronan SynthasesHyaluronic Acid

Identifiers

PMID34504153
PMCPMC8429445
OpenAlexW3195478094

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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.