Evidence map›Paper›PMID 37812696›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2023

A sub-10-nm, folic acid-conjugated gold nanoparticle as self-therapeutic treatment of tubulointerstitial fibrosis.

Cecilia Ka Wing Chan, Cheuk Chun Szeto, Leo Kit Cheung Lee, Yu Xiao, Bohan Yin, Xiaofan Ding, Thomas Wai Yip Lee, James Yun Wong Lau, Chung Hang Jonathan Choi

Open access · hybridAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 4% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Selective autophagy in kidney health and disease.Nature reviews. Nephrology · 2026
    Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Nanotherapeutics in Kidney Disease: Innovations, Challenges, and Future Directions.Journal of the American Society of Nephrology : JASN · 2025
    Review
  16. In Vivo Interactions of Nucleic Acid Nanostructures With Cells.Advanced materials (Deerfield Beach, Fla.) · 2025
    Review
  17. Review
  18. Article
  19. Review
  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

9 authors at 1 institution in 1 country.

Cecilia Ka Wing ChanDepartment of Surgery, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.ORCID 0000-0003-0251-3750
Cheuk Chun SzetoDepartment of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.
Leo Kit Cheung LeeDepartment of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.ORCID 0000-0002-6270-069X
Yu XiaoDepartment of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.ORCID 0000-0002-2998-1477
Bohan YinDepartment of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.
Xiaofan DingDepartment of Surgery, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.
Thomas Wai Yip LeeSchool of Pharmacy, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.
James Yun Wong LauDepartment of Surgery, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.ORCID 0000-0003-0122-4068
Chung Hang Jonathan ChoiDepartment of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.ORCID 0000-0003-2935-7217
Chinese University of Hong Kong · HK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nanomedicines for treating chronic kidney disease (CKD) are on the horizon, yet their delivery to renal tubules where tubulointerstitial fibrosis occurs remains inefficient. We report a folic acid-conjugated gold nanoparticle that can transport into renal tubules and treat tubulointerstitial fibrosis in mice with unilateral ureteral obstruction. The 3-nm gold core allows for the dissection of bio-nano interactions in the fibrotic kidney, ensures the overall nanoparticle (~7 nm) to be small enough for glomerular filtration, and naturally inhibits the p38α mitogen-activated protein kinase in the absence of chemical or biological drugs. The folic acids support binding to selected tubule cells with overexpression of folate receptors and promote retention in the fibrotic kidney. Upon intravenous injection, this nanoparticle can selectively accumulate in the fibrotic kidney over the nonfibrotic contralateral kidney at ~3.6% of the injected dose. Delivery to the fibrotic kidney depends on nanoparticle size and disease stage. Notably, a single injection of this self-therapeutic nanoparticle reduces tissue degeneration, inhibits genes related to the extracellular matrix, and treats fibrosis more effectively than standard Captopril therapy. Our data underscore the importance of constructing CKD nanomedicines based on renal pathophysiology.

Indexed as

Metal NanoparticlesRenal Insufficiency, ChronicAnimalsFibrosisFolic AcidGoldKidneyMiceFolic AcidGoldchronic kidney diseasefibrosisgold nanoparticlenanomedicinerenal tubules

Identifiers

PMID37812696
PMCPMC10589645
OpenAlexW4387448545

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.