Evidence map›Paper›PMID 33806801›Full record

ArticleCancers2021

Three-Dimensional Tumor Spheroids as a Tool for Reliable Investigation of Combined Gold Nanoparticle and Docetaxel Treatment.

Kyle Bromma, Abdulaziz Alhussan, Monica Mesa Perez, Perry Howard, Wayne Beckham, Devika B Chithrani

Open access · goldAbstract read
In one paragraph

Article in Cancers, 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
1.6field-weighted citation impact, top 19% 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, 30 citations in OpenAlex.

  1. Article
  2. Article
  3. How Key in vivo Models Can Advance Anticancer Nanotherapeutics.International journal of nanomedicine · 2026
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  7. Article
  8. Bioprinted research models of urological malignancy.Exploration (Beijing, China) · 2024
    Review
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  11. Article
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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 at 2 institutions in 1 country.

Kyle BrommaDepartment of Physics and Astronomy, University of Victoria, Victoria, BC V8P 5C2, Canada.ORCID 0000-0003-1459-7365
Abdulaziz AlhussanDepartment of Physics and Astronomy, University of Victoria, Victoria, BC V8P 5C2, Canada.
Monica Mesa PerezDepartment of Biochemistry and Microbiology, University of Victoria, Victoria, BC V8P 5C2, Canada.ORCID 0000-0001-5270-4083
Perry HowardDepartment of Biochemistry and Microbiology, University of Victoria, Victoria, BC V8P 5C2, Canada.
Wayne BeckhamDepartment of Physics and Astronomy, University of Victoria, Victoria, BC V8P 5C2, Canada.
Devika B ChithraniDepartment of Physics and Astronomy, University of Victoria, Victoria, BC V8P 5C2, Canada.ORCID 0000-0001-5251-1388
University of Victoria · CAUniversity of British Columbia · CA

Funding

Natural Sciences and Engineering Research Council of Canada RGPIN-2017-04501
6 · The paper itself

Abstract

Radiotherapy and chemotherapy are the gold standard for treating patients with cancer in the clinic but, despite modern advances, are limited by normal tissue toxicity. The use of nanomaterials, such as gold nanoparticles (GNPs), to improve radiosensitivity and act as drug delivery systems can mitigate toxicity while increasing deposited tumor dose. To expedite a quicker clinical translation, three-dimensional (3D) tumor spheroid models that can better approximate the tumor environment compared to a two-dimensional (2D) monolayer model have been used. We tested the uptake of 15 nm GNPs and 50 nm GNPs on a monolayer and on spheroids of two cancer cell lines, CAL-27 and HeLa, to evaluate the differences between a 2D and 3D model in similar conditions. The anticancer drug docetaxel (DTX) which can act as a radiosensitizer, was also utilized, informing future potential of GNP-mediated combined therapeutics. In the 2D monolayer model, the addition of DTX induced a small, non-significant increase of uptake of GNPs of between 13% and 24%, while in the 3D spheroid model, DTX increased uptake by between 47% and 186%, with CAL-27 having a much larger increase relative to HeLa. Further, the depth of penetration of 15 nm GNPs over 50 nm GNPs increased by 33% for CAL-27 spheroids and 17% for HeLa spheroids. These results highlight the necessity to optimize GNP treatment conditions in a more realistic tumor-life environment. A 3D spheroid model can capture important details, such as different packing densities from different cancer cell lines, which are absent from a simple 2D monolayer model.

Indexed as

cell culturedocetaxelgold nanoparticlesmonolayermulticellular spheroidsnanomedicineuptake

Identifiers

PMID33806801
PMCPMC8004664
OpenAlexW3137160659

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.