Evidence map›Paper›PMID 33774121›Full record

ArticleJournal of controlled release : official journal of the Controlled Release Society2021

Polycation fluorination improves intraperitoneal siRNA delivery in metastatic pancreatic cancer.

Yu Hang, Siyuan Tang, Weimin Tang, David Větvička, Chuhan Zhang, Ying Xie, Fei Yu, Ao Yu, Diptesh Sil, Jing Li and 2 more

Open access · greenAbstract read
In one paragraph

Article in Journal of controlled release : official journal of the Controlled Release Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.1field-weighted citation impact, top 10% 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

17 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
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  3. Inhalable perfluorocarbon RNA nanocapsules overcome biological barriers to treat lung metastases.Journal of controlled release : official journal of the Controlled Release Society · 2026
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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

12 authors at 1 institution in 2 countries.

Yu HangCenter for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Siyuan TangCenter for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Weimin TangCenter for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA.
David VětvičkaCenter for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA; Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University, Prague, Czech Republic.
Chuhan ZhangCenter for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Ying XieCenter for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Fei YuCenter for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Ao YuCenter for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Diptesh SilCenter for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Jing LiCenter for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Rakesh K SinghDepartment of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198, USA.
David OupickýCenter for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA. Electronic address: david.oupicky@unmc.edu.
University of Nebraska Medical Center · US

Funding

Nebraska Center for Nanomedicine- Pilot ProjectsP30GM127200 · NIGMS · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI OUPICKY, DAVID · 2018 to 2022
$5.7M
Self-immolative prodrug/miRNA nanoparticle combinations for cancer treatmentR01CA235863 · NCI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI CASERO, ROBERT A., OUPICKY, DAVID · 2019 to 2023
$2.3M
Targeting CXCR2 axis in Pancreatic CancerR01CA228524 · NCI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI BATRA, SURINDER K., SINGH, RAKESH K · 2018 to 2022
$2.0M
NCI NIH HHS R01 CA228524NCI NIH HHS R01 CA235863NIGMS NIH HHS P30 GM127200
6 · The paper itself

Abstract

Pancreatic ductal adenocarcinoma (PDAC) is a growing medical problem associated with extensive metastasis and high mortality. Intraperitoneal (IP) administration of therapeutics promises to help the treatment of cancers originated from organs in the peritoneal cavity. In this study, we evaluated how physicochemical properties of self-assembled polycation/siRNA nanoparticles affect their IP delivery efficacy in an orthotopic PDAC model. We have examined the effect of covalent polycation modification with lipophobic and hydrophobic tetrafluoro-p-toluic acid (TFTA), hydrophobic cholesterol, and hydrophilic poly(ethylene glycol) respectively. The surface charge of the three different nanoparticles was also modulated by coating the surface with serum albumin. We found that positively charged fluorine-containing particles with lipophobic properties based on a mixture of positively charged polymeric AMD3100 CXCR4 antagonist (PAMD) and PAMD modified with TFTA (mPAMD-TFTA)/siRNA displayed the best cell uptake and transfection efficacy in vitro. Biodistribution evaluation of the nanoparticles in a syngeneic orthotopic PDAC model revealed that the fluorine-containing formulation also achieved the highest PDAC tumor accumulation after IP administration. With a combination of CXCR4 inhibition by PAMD and PLK1 downregulation by siRNA, the treatment with mPAMD-TFTA/siPLK1 showed significant inhibition of both primary and metastatic PDAC tumors. Overall, our study provides insights into and guides the design of the nanoparticles for improved IP delivery of siRNA in PDAC.

Indexed as

HalogenationPancreatic NeoplasmsCell Line, TumorHumansPolyelectrolytesRNA, Small InterferingTissue DistributionPolyelectrolytesRNA, Small InterferingCXCR4 antagonismIntraperitoneal administrationPancreatic ductal adenocarcinomaPLK1Polyplexes

Identifiers

PMID33774121
PMCPMC8122076
OpenAlexW3143021599

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.