Evidence map›Paper›PMID 34920370›Full record

ArticleBiomaterials2022

Co-delivery of dihydroartemisinin and pyropheophorbide-iron elicits ferroptosis to potentiate cancer immunotherapy.

Wenbo Han, Xiaopin Duan, Kaiyuan Ni, Youyou Li, Christina Chan, Wenbin Lin

Open access · greenAbstract read
In one paragraph

Article in Biomaterials, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 1 pooled it
10.6field-weighted citation impact, top 1% 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

50 citing papers in PubMed, 1 synthesis or guideline pooled it, 97 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. The Therapeutic Potential of Dihydroartemisinin in Cancer Treatment.International journal of molecular sciences · 2026
    Review
  6. Review
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article
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 1 institution in 1 country.

Wenbo HanDepartment of Chemistry, The University of Chicago, Chicago, IL, 60637, USA.
Xiaopin DuanDepartment of Chemistry, The University of Chicago, Chicago, IL, 60637, USA.
Kaiyuan NiDepartment of Chemistry, The University of Chicago, Chicago, IL, 60637, USA.
Youyou LiDepartment of Chemistry, The University of Chicago, Chicago, IL, 60637, USA.
Christina ChanDepartment of Chemistry, The University of Chicago, Chicago, IL, 60637, USA.
Wenbin LinDepartment of Chemistry, The University of Chicago, Chicago, IL, 60637, USA; Department of Radiation and Cellular Oncology and the Ludwig Center for Metastasis Research, The University of Chicago, IL, 60637, USA. Electronic address: wenbinlin@uchicago.edu.
University of Chicago · US

Funding

VIRAL ONCOLOGY CORE FACILITYP30CA014599 · NCI · UNIVERSITY OF CHICAGO · PI CHIEN-MIN KAO · 1985 to 2026
$122.1M
Nanoscale Coordination Polymers Co-deliver Chemotherapeutics and siRNAs for Efficacious Treatment of Resistant Ovarian CancerR01CA216436 · NCI · UNIVERSITY OF CHICAGO · PI LIN, WENBIN · 2018 to 2022
$2.1M
Targeted Nanomedicines with Synergistic Chemotherapeutics to Enhance Immunotherapy of Metastatic Colorectal CancerR01CA223184 · NCI · UNIVERSITY OF CHICAGO · PI LIN, WENBIN · 2018 to 2022
$1.8M
NCI NIH HHS P30 CA014599NCI NIH HHS R01 CA216436NCI NIH HHS R01 CA223184
6 · The paper itself

Abstract

Dihydroartemisinin (DHA) has shown cytotoxicity against various tumor cells in vitro in an iron-dependent manner, but its in vivo antitumor efficacy is compromised by its rapid degradation and clearance. Here we show the induction of ferroptosis by DHA in an immunogenic fashion and the maximization of in vivo antitumor efficacy of DHA by co-delivering a cholesterol derivative of DHA (Chol-DHA) and Pyropheophorbide-iron (Pyro-Fe) in ZnP@DHA/Pyro-Fe core-shell nanoparticles. ZnP@DHA/Pyro-Fe particles stabilize DHA against hydrolysis and prolong blood circulation of Chol-DHA and Pyro-Fe for their enhanced uptake in tumors. Co-delivery of an exogenous iron complex and DHA induces more ROS production and causes significant tumor inhibition in vivo. By increasing tumor immunogenicity, the combination of DHA and Pyro-Fe sensitizes non-immunogenic colorectal tumors to anti-PD-L1 checkpoint blockade immunotherapy. These findings suggest the potential of using nanotechnology to repurpose DHA and other drugs with excellent safety profiles for combination with immune checkpoint blockade to treat cancers.

Indexed as

FerroptosisNeoplasmsArtemisininsCell Line, TumorImmunotherapyIronArtemisininsartenimolIronArtemisininCancerFerroptosisImmunotherapyIronNanoparticle

Identifiers

PMID34920370
PMCPMC8724418
OpenAlexW4200378702

What OpenQuestion holds

Textmetadata
LicenceTDM
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.