Evidence map›Paper›PMID 34013490›Full record

ArticleClinical rheumatology2021

Dihydroartemisinin alleviates skin fibrosis and endothelial dysfunction in bleomycin-induced skin fibrosis models.

Rui Li, Hanlin Yin, Juan Wang, Dongyi He, Qingran Yan, Liangjing Lu

Abstract read
PubMed Publisher
In one paragraph

Article in Clinical rheumatology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

9 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Molecules (Basel, Switzerland) · 2026
    Article
  3. Article
  4. Article
  5. [Research progress on cellular metabolic reprogramming in skin fibrosis].Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2025
    Review
  6. Review
  7. Article
  8. Article
  9. 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

6 authors at 2 institutions in 1 country.

Rui LiDepartment of Rheumatology, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, 145 Shandong Middle Road, Shanghai, 2000001, China.
Hanlin YinDepartment of Rheumatology, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, 145 Shandong Middle Road, Shanghai, 2000001, China.
Juan WangDepartment of Rheumatology, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, 145 Shandong Middle Road, Shanghai, 2000001, China.
Dongyi HeDepartment of Rheumatology, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200052, China. hedongyi1967@shutcm.edu.cn.
Qingran YanDepartment of Rheumatology, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, 145 Shandong Middle Road, Shanghai, 2000001, China. yanqingran@163.com.
Liangjing LuDepartment of Rheumatology, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, 145 Shandong Middle Road, Shanghai, 2000001, China. lu_liangjing@163.com.ORCID http://orcid.org/0000-0001-9116-6038
Shanghai Jiao Tong University · CNShanghai Innovative Research Center of Traditional Chinese Medicine · CN

Funding

National Natural Science Foundation of China 81801593National Natural Science Foundation of China 81974251
6 · The paper itself

Abstract

objectiveThe present study was to investigate whether dihydroartemisinin (DHA), which is a highly effective and safe drug in the treatment of malaria, could be repurposed for the treatment of skin fibrosis and vascular dysfunction in systemic sclerosis (SSc).

methodsThe value of DHA was determined using a bleomycin-induced model of skin fibrosis. mRNA transcriptome analysis was performed, and the targets of DHA on fibroblasts were identified. Immunofluorescence staining was used to identify dermal vessels undergoing endothelial-to-mesenchymal transition (EndoMT). Autophagic flux was detected by western blot and mRFP-GFP-LC3 adenovirus vector transfection.

resultsBoth systemic and topical administration of DHA decreased dermal thickness and collagen deposition and alleviated EndoMT in bleomycin-induced skin fibrosis mice model. Treatment of human umbilical vein endothelial cells (HUVECs) with TGF-β1 resulted in the acquisition of the activation marker (α-SMA) and loss of endothelial markers (CD31 and VE-cadherin), a process that was restored by DHA. DHA significantly suppressed skin fibroblast activation and collagen-1 production mainly through regulating PI3K-Akt pathway. DHA also induced fibroblast autophagic flux and that autophagy dependently suppressed collagen-1 production.

conclusionThe results of the present study revealed that oral and topical DHA administration ameliorated tissue fibrosis and protected dermal blood vessels from bleomycin-induced EndoMT. Our study has elucidated the value of repurposing DHA for the treatment of SSc. Key Points • Oral or topical usage of DHA alleviated dermal fibrosis and EndoMT in bleomycin-induced skin fibrosis mice models. • DHA autophagy dependently inhibited fibroblast activation and collagen deposition via PI3K-ATK pathway. • DHA inhibited EndoMT of HUVECs induced by TGF-β1 by the downregulation of α-SMA and the upregulation of CD31 and VE-cadherin.

Indexed as

BleomycinScleroderma, SystemicAnimalsArtemisininsDisease Models, AnimalFibroblastsFibrosisHumansHuman Umbilical Vein Endothelial CellsMicePhosphatidylinositol 3-KinasesSkinArtemisininsartenimolBleomycinPhosphatidylinositol 3-KinasesDihydroartemisininEndothelial-to-mesenchymal transitionSkin fibrosisSystemic sclerosis

Identifiers

PMID34013490
OpenAlexW3163857320

What OpenQuestion holds

Textmetadata
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.