Evidence map›Paper›PMID 30019005›Full record

ArticleACS biomaterials science & engineering2018

Pulsatile Chemotherapeutic Delivery Profiles Using Magnetically Responsive Hydrogels.

Tania T Emi, Tanner Barnes, Emma Orton, Anne Reisch, Anita E Tolouei, S Zahra M Madani, Stephen M Kennedy

Abstract read
In one paragraph

Article in ACS biomaterials science & engineering, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Article
  2. Review
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  5. Review
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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

7 authors.

Tania T EmiDepartment of Chemical Engineering, University of Rhode Island, Kingston, Rhode Island 02881, United States.
Tanner BarnesDepartment of Electrical, Computer, and Biomedical Engineering, University of Rhode Island, Kingston, Rhode Island 028881, United States.
Emma OrtonDepartment of Electrical, Computer, and Biomedical Engineering, University of Rhode Island, Kingston, Rhode Island 028881, United States.
Anne ReischDepartment of Electrical, Computer, and Biomedical Engineering, University of Rhode Island, Kingston, Rhode Island 028881, United States.
Anita E ToloueiDepartment of Chemical Engineering, University of Rhode Island, Kingston, Rhode Island 02881, United States.
S Zahra M MadaniDepartment of Chemical Engineering, University of Rhode Island, Kingston, Rhode Island 02881, United States.
Stephen M KennedyDepartment of Chemical Engineering, University of Rhode Island, Kingston, Rhode Island 02881, United States.

Funding

Training CoreP20GM103430 · NIGMS · UNIVERSITY OF RHODE ISLAND · PI Bongsup P Cho · 2012 to 2026
$63.6M
NIGMS NIH HHS P20 GM103430
6 · The paper itself

Abstract

Pulsatile chemotherapeutic delivery profiles may provide a number advantages by maximizing the anticancer toxicity of chemotherapeutics, reducing off-target side effects, and combating adaptive resistance. While these temporally dynamic deliveries have shown some promise, they have yet to be clinically deployed from implantable hydrogels, whose localized deliveries could further enhance therapeutic outcomes. Here, several pulsatile chemotherapeutic delivery profiles were tested on melanoma cell survival in vitro and compared to constant (flatline) delivery profiles of the same integrated dose. Results indicated that pulsatile delivery profiles were more efficient at killing melanoma cells than flatline deliveries. Furthermore, results suggested that parameters like the duration of drug "on" periods (pulse width), delivery rates during those periods (pulse heights), and the number/frequency of pulses could be used to optimize delivery profiles. Optimization of pulsatile profiles at tumor sites in vivo would require hydrogel materials capable of producing a wide variety of pulsatile profiles (e.g., of different pulse heights, pulse widths, and pulse numbers). This work goes on to demonstrate that magnetically responsive, biphasic ferrogels are capable of producing pulsatile mitoxantrone delivery profiles similar to those tested in vitro. Pulse parameters such as the timing and rate of delivery during "on" periods could be remotely regulated through the use of simple, hand-held magnets. The timing of pulses was controlled simply by deciding when and for how long to magnetically stimulate. The rate of release during pulse "on" periods was a function of the magnetic stimulation frequency. These findings add to the growing evidence that pulsatile chemotherapeutic delivery profiles may be therapeutically beneficial and suggest that magnetically responsive hydrogels could provide useful tools for optimizing and clinically deploying pulsatile chemotherapeutic delivery profiles.

Identifiers

PMID30019005
PMCPMC6039960

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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.