Evidence map›Paper›PMID 26989641›Full record

ArticleJournal of nanopharmaceutics and drug delivery2013

Evaluation of Chitosan-Tripolyphosphate Nanoparticles as a p-shRNA Delivery Vector: Formulation, Optimization and Cellular Uptake Study.

Mahdi Karimi, Pinar Avci, Mohsen Ahi, Tarane Gazori, Michael R Hamblin, Hossein Naderi-Manesh

Abstract read
In one paragraph

Article in Journal of nanopharmaceutics and drug delivery, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

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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

6 authors.

Mahdi KarimiDepartment of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, 14115, Iran; Department of Dermatology, Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston MA, 02114, USA.
Pinar AvciDepartment of Dermatology, Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston MA, 02114, USA; Department of Dermatology, Semmelweis University School of Medicine, Budapest, 1085, Hungary.
Mohsen AhiBiotechnology Group, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, 14115, Iran.
Tarane GazoriBiotechnology Group, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, 14115, Iran.
Michael R HamblinDepartment of Dermatology, Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston MA, 02114, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA, 02139, USA.
Hossein Naderi-ManeshDepartment of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, 14115, Iran; Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, 14115, Iran.

Funding

Photodynamic Therapy of Localized InfectionsR01AI050875 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI HAMBLIN, MICHAEL R · 2003 to 2017
$4.8M
NIAID NIH HHS R01 AI050875
6 · The paper itself

Abstract

Polysaccharides (especially chitosan) have recently attracted much attention as gene therapy delivery vehicles for their unique properties such as biocompatibility, biodegradability, low toxicity, and controlled release. Nanoparticles have strong potential as a carrier of plasmid short hairpin RNA (p-shRNA). This study aimed to find the optimum conditions for obtaining Chitosan/triphosphate (TPP)/p-shRNA nanoparticles by the ionic gelation method, and investigating the cellular uptake of the optimized nanoparticles. After applying the central composite design of response surface methodology (RSM), the optimum conditions for preparation of nanoparticles with small size and high loading efficiency were: chitosan/TPP ratio = 10, pH = 5.5 and N/P ratio = 11. The resulting nanoparticles had an average size of 172.8 ± 7 nm and loading efficiency of 71.5 ± 5%. SEM images showed spherical and smooth nanoparticles. The nanoparticles complexed with p-shRNA and may protect it against nuclease digestion. Cytotoxicity studies with HeLa and PC3 human cancer cells demonstrated that chitosan/TPP nanoparticles had low toxicity. Cellular uptake studies using HeLa cells showed that the nanoparticles entered the cells (cellular uptake) and delivered DNA, probably due to their favorable Zeta potential (approximately +28 mV) and small size.

Indexed as

Cellular UptakeChitosanGene DeliveryNanoparticlep-shRNAResponse Surface Methodology (RSM)

Identifiers

PMID26989641
PMCPMC4792291

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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.