Evidence map›Paper›PMID 34565273›Full record

ArticleDrug delivery2021

Improved anticancer activity of betulinic acid on breast cancer through a grafted copolymer-based micelles system.

Xueju Qi, Cong Gao, Chuanjin Yin, Junting Fan, Xiaochen Wu, Chuanlong Guo

Open access · goldAbstract read
In one paragraph

Article in Drug delivery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

16 citing papers in PubMed, 36 citations in OpenAlex.

  1. Review
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  4. SoluplusInternational journal of molecular sciences · 2025
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  7. Article
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  10. F1000Research · 2024
    Article
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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 3 institutions in 1 country.

Xueju QiDepartment of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China.
Cong GaoAffiliated Hospital of Shandong Academy of Medical Sciences, The Third Affiliated Hospital of Shandong First Medical University, Jinan, China.
Chuanjin YinDepartment of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China.
Junting FanDepartment of Pharmaceutical Analysis, School of Pharmacy, Nanjing Medical University, Nanjing, China.
Xiaochen WuDepartment of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China.
Chuanlong GuoDepartment of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China.
Qingdao University of Science and Technology · CNAffiliated Hospital of Shandong Academy of Medical Sciences · CNNanjing Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Betulinic acid (3β-Hydroxy-20(29)-lupaene-28-oic acid, BA) has excellent anti-cancer activity but poor solubility and low bioavailability. To improve the antitumor activity of BA, a polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol (PVCL-PVA-PEG) graft copolymer (Soluplus) encapsulated BA micelle (Soluplus-BA) was fabricated. The Soluplus-BA micelles presented a mean size of 54.77 ± 1.26 nm and a polydispersity index (PDI) of 0.083. The MTT assay results showed that Soluplus-BA micelles increased the inhibitory effect of BA on MDA-MB-231 cells, mainly due to the enhanced accumulation of reactive oxygen species (ROS) and the destruction of mitochondrial membrane potential (MMP). Soluplus-BA micelles induced the DNA double-strand breaks (DSBs) as the γH2AX foci increased. Moreover, Soluplus-BA also inhibited the tube formation and migration of human umbilical vein endothelial cells (HUVECs), and inhibited the neovascularization of the chicken chorioallantoic membrane (CAM). This angiogenesis inhibitory effect may be accomplished by regulating the HIF-1/VEGF-FAK signaling pathway. The

Indexed as

MicellesAnimalsAnimals, Outbred StrainsAntineoplastic AgentsBetulinic AcidBreast NeoplasmsCell Line, TumorChemistry, PharmaceuticalChickensDrug CarriersHumansHuman Umbilical Vein Endothelial CellsHypoxia-Inducible Factor 1Membrane Potential, MitochondrialMiceNeovascularization, PathologicAntineoplastic AgentsBetulinic AcidDrug CarriersHypoxia-Inducible Factor 1MicellesPentacyclic TriterpenesPolyethylene Glycolspolyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymerPolyvinylsReactive Oxygen SpeciesVascular Endothelial Growth Factor AangiogenesisBetulinic acidbreast cancerDNA damageSoluplus

Identifiers

PMID34565273
PMCPMC8475105
OpenAlexW3202313368

What OpenQuestion holds

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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.