Evidence map›Paper›PMID 34466749›Full record

ArticleBioactive materials2022

Study of copper-cysteamine based X-ray induced photodynamic therapy and its effects on cancer cell proliferation and migration in a clinical mimic setting.

Xiangyu Chen, Jiayi Liu, Ya Li, Nil Kanatha Pandey, Taili Chen, Lingyun Wang, Eric Horacio Amador, Weijun Chen, Feiyue Liu, Enhua Xiao and 1 more

Open access · goldAbstract read
In one paragraph

Article in Bioactive materials, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
8.7field-weighted citation impact, top 2% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 81 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Phototherapy in cancer treatment: strategies and challenges.Signal transduction and targeted therapy · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Recent advances in copper homeostasis-involved tumor theranostics.Asian journal of pharmaceutical sciences · 2024
    Review
  12. Dietary copper improves intestinal structural integrity in juvenile grass carp (Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2024
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Review
  19. Article
  20. 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

11 authors at 2 institutions in 2 countries.

Xiangyu ChenDepartment of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China.
Jiayi LiuDepartment of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China.
Ya LiDepartment of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China.
Nil Kanatha PandeyDepartment of Physics, The University of Texas at Arlington, Arlington, TX, 76019, USA.
Taili ChenDepartment of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan Province, 410011, China.
Lingyun WangDepartment of Physics, The University of Texas at Arlington, Arlington, TX, 76019, USA.
Eric Horacio AmadorDepartment of Physics, The University of Texas at Arlington, Arlington, TX, 76019, USA.
Weijun ChenDepartment of Oncology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China.
Feiyue LiuDepartment of Oncology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China.
Enhua XiaoDepartment of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China.
Wei ChenDepartment of Physics, The University of Texas at Arlington, Arlington, TX, 76019, USA.
Central South University · CNThe University of Texas at Arlington · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Copper-cysteamine as a new generation of sensitizers can be activated by light, X-rays, microwaves, or ultrasound to produce reactive oxygen species. X-ray induced photodynamic therapy (X-PDT) has been studied extensively; however, most of the studies reported so far were conducted in the laboratory, which is not conducive to the clinical translation conditions. In this contribution, for the first time, we investigated the treatment efficiency of copper-cysteamine (Cu-Cy) based X-PDT by mimicking the clinical conditions with a clinical linear accelerator and building deep-seated tumor models to study not only the effectiveness but also its effects on the cell migration and proliferation in the level of the cell, tissue, and animal. The results showed that, without X-ray irradiation, Cu-Cy nanoparticles (NPs) had a low toxicity in HepG2, SK-HEP-1, Li-7, and 4T1 cells at a concentration below 100 mg/L. Interestingly, for the first time, it was observed that Cu-Cy mediated X-PDT can inhibit the proliferation and migration of these cell lines in a dose-dependent manner. Antigen markers of migration and cell proliferation, proliferating cell nuclear antigen (PCNA) and E-cadherin, from tumor tissue in the X-PDT group were remarkably different from that of the control group. Furthermore, the MRI assessment showed that the Cu-Cy based X-PDT inhibited the growth of deeply located tumors in mice and rabbits (

Indexed as

Cell migrationCopper-cysteamineNanoparticlePhotodynamic therapyProliferationX-ray

Identifiers

PMID34466749
PMCPMC8385117
OpenAlexW3170567537

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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.