Evidence map›Paper›PMID 40142157›Full record

ArticleMolecules (Basel, Switzerland)2025

Development of Layer-by-Layer Magnetic Nanoparticles for Application to Radiotherapy of Pancreatic Cancer.

Nobuyoshi Fukumitsu, Yoshitaka Matsumoto, Lili Chen, Yu Sugawara, Nanami Fujisawa, Eri Niiyama, Sosuke Ouchi, Emiho Oe, Takashi Saito, Mitsuhiro Ebara

Abstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2025. 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
–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

2 citing papers in PubMed.

  1. Spatiotemporal cancer controlNanomedicine (London, England) · 2026
    Review
  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

10 authors.

Nobuyoshi FukumitsuDepartment of Radiation Oncology, Kobe Proton Center, Kobe 650-0047, Japan.ORCID 0000-0003-2417-8199
Yoshitaka MatsumotoDepartment of Radiation Oncology, Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan.ORCID 0000-0002-2074-3042
Lili ChenSmart Polymers Group, Research Center for Macromolecules and Biomaterials, National Institute for Materials Science, Tsukuba 305-0044, Japan.ORCID 0000-0001-8290-5230
Yu SugawaraProton Medical Research Center, University of Tsukuba Hospital, Tsukuba 305-8576, Japan.
Nanami FujisawaSmart Polymers Group, Research Center for Macromolecules and Biomaterials, National Institute for Materials Science, Tsukuba 305-0044, Japan.ORCID 0000-0002-8894-1790
Eri NiiyamaSmart Polymers Group, Research Center for Macromolecules and Biomaterials, National Institute for Materials Science, Tsukuba 305-0044, Japan.
Sosuke OuchiSmart Polymers Group, Research Center for Macromolecules and Biomaterials, National Institute for Materials Science, Tsukuba 305-0044, Japan.
Emiho OeSmart Polymers Group, Research Center for Macromolecules and Biomaterials, National Institute for Materials Science, Tsukuba 305-0044, Japan.ORCID 0000-0001-7326-7740
Takashi SaitoDepartment of Radiation Oncology, Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan.ORCID 0009-0006-4663-5580
Mitsuhiro EbaraSmart Polymers Group, Research Center for Macromolecules and Biomaterials, National Institute for Materials Science, Tsukuba 305-0044, Japan.ORCID 0000-0002-7906-0350

Funding

Japan Society for the Promotion of Science JP15K19768Japan Society for the Promotion of Science JP17K15016Tsukuba Innovation Arena (TIA) Collaborative Program Exploration and Promotion Project Kakehashi TK20-044
6 · The paper itself

Abstract

Pancreatic cancer is among the deadliest malignancies, with few treatment options for locally advanced, unresectable cases. Conventional therapies, such as chemoradiotherapy and hyperthermia, show promise but face challenges in improving outcomes. This study introduces a novel drug delivery system using gemcitabine (GEM)-loaded layer-by-layer magnetic nanoparticles (LBL MNPs) combined with alternating magnetic field (AMF) application and X-ray irradiation to enhance therapeutic efficacy. LBL MNPs were synthesized using optimized layering techniques to achieve superior drug loading and controlled release. Human pancreatic cancer cells (PANC-1) were treated with LBL MNPs alone, with AMF-induced hyperthermia, and in combination with X-rays. The results demonstrate that the 7-layer LBL MNPs exhibited optimal cytotoxicity, significantly reducing cell viability at concentrations of 30 µg/mL and higher. Combining 7-layer LBL MNPs with AMF increased cell death in a time- and concentration-dependent manner, achieving up to 98% inhibition of cell proliferation. The addition of X-rays to the regimen demonstrated a strong synergistic effect, resulting in a 13-fold increase in cell death compared to controls. These findings highlight the potential of this integrated approach to improve outcomes in patients with pancreatic cancer.

Indexed as

DeoxycytidineMagnetite NanoparticlesPancreatic NeoplasmsCell Line, TumorCell ProliferationCell SurvivalDrug Delivery SystemsGemcitabineHumansX-RaysDeoxycytidineGemcitabineMagnetite Nanoparticleslayer-by-layer magnetic nanoparticlesradiosensitizationthermo-chemotherapy

Identifiers

PMID40142157
PMCPMC11946117

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.