Evidence map›Paper›PMID 29103517›Full record

ArticleCarbohydrate polymers2018

Stability and bioactivity of chitosan as a transfection agent in primary human cell cultures: A case for chitosan-only controls.

Tanya L Cupino, Billy A Watson, Alan C Cupino, Keiji Oda, Mark G Ghamsary, Salvador Soriano, Wolff M Kirsch

Abstract read
In one paragraph

Article in Carbohydrate polymers, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

2 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. 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

7 authors at 1 institution in 1 country.

Tanya L CupinoNeurosurgery Center for Research, Training and Education, Loma Linda University School of Medicine, Loma Linda, CA, United States; Division of Microbiology and Molecular Genetics, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA, United States. Electronic address: tcupino@llu.edu.
Billy A WatsonDivision of Microbiology and Molecular Genetics, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA, United States; Division of Human Anatomy, Department of Pathology and Human Anatomy, Loma Linda University School of Medicine, Loma Linda, CA, United States.
Alan C CupinoDepartment of Epidemiology and Biostatistics, Loma Linda University School of Public Health, Loma Linda, CA, United States.
Keiji OdaDepartment of Epidemiology and Biostatistics, Loma Linda University School of Public Health, Loma Linda, CA, United States.
Mark G GhamsaryDepartment of Epidemiology and Biostatistics, Loma Linda University School of Public Health, Loma Linda, CA, United States (Retired).
Salvador SorianoDivision of Human Anatomy, Department of Pathology and Human Anatomy, Loma Linda University School of Medicine, Loma Linda, CA, United States.
Wolff M KirschNeurosurgery Center for Research, Training and Education, Loma Linda University School of Medicine, Loma Linda, CA, United States. Electronic address: wkirsch@llu.edu.
Loma Linda University · US

Funding

Iron Metabolism Alterations in Alzheimer's DiseaseR01AG020948 · NIA · LOMA LINDA UNIVERSITY · PI KIRSCH, WOLFF M. · 2002 to 2006
$6.5M
NIA NIH HHS R01 AG020948
6 · The paper itself

Abstract

Chitosan polymers (Cs), from which microparticles (CsM) may be precipitated to deliver various intracellular payloads, are generally considered biologically inert. We examined the impact of cell culture conditions on CsM size and the effect of chitosan on CD59 expression in primary human smooth muscle cells. We found that particle concentration and incubation time in biological buffers augmented particle size. Between pH 7.0 and pH 7.5, CsM size increased abruptly. We utilized CsM containing a plasmid with a gene for CD59 (pCsM) to transfect cells. Both CD59 mRNA and the number of CD59-positive cells were increased after pCsM treatment. Unexpectedly, CsM also augmented the number of CD59-positive cells. Cs alone enhanced CD59 expression more potently than either pCSM or CsM. This observation strongly suggests that chitosan is in fact bioactive and that chitosan-only controls should be included to avoid misattributing the activity of the delivery agent with that of the payload.

Indexed as

CD59 AntigensCells, CulturedChitosanHumansMyocytes, Smooth MuscleNanoparticlesPlasmidsRNA, MessengerTransfectionCD59 AntigensChitosanRNA, MessengerCD59ChitosanGene deliveryMicroparticlePrimary human cells

Identifiers

PMID29103517
PMCPMC5699233
OpenAlexW2762894262

What Socratic 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 Socratic graph.