Evidence map›Paper›PMID 32019122›Full record

ArticlePharmaceutics2020

Synthesis and Characterization of pH-Responsive PEG-Poly(β-Amino Ester) Block Copolymer Micelles as Drug Carriers to Eliminate Cancer Stem Cells.

Weinan Li, Jialin Sun, Xiaoyu Zhang, Li Jia, Mingxi Qiao, Xiuli Zhao, Haiyang Hu, Dawei Chen, Yanhong Wang

Open access · goldAbstract read
In one paragraph

Article in Pharmaceutics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.6field-weighted citation impact, top 19% 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

10 citing papers in PubMed, 28 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. Recent Progress in Bio-Responsive Drug Delivery Systems for Tumor Therapy.Frontiers in bioengineering and biotechnology · 2022
    Review
  7. Co-Delivery ofFrontiers in pharmacology · 2022
    Article
  8. Article
  9. Article
  10. 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 4 institutions in 1 country.

Weinan LiSchool of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
Jialin SunKey Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China.
Xiaoyu ZhangSchool of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, China.
Li JiaDepartment of pharmacy, Heze Medical College, Heze 274000, China.
Mingxi QiaoSchool of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
Xiuli ZhaoSchool of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
Haiyang HuSchool of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
Dawei ChenSchool of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
Yanhong WangSchool of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, China.
Shenyang Pharmaceutical University · CNHeilongjiang University of Chinese Medicine · CNHeze Medical College · CNNortheast Forestry University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PEG-poly(β-amino ester) (PEG-PBAE), which is an effective pH-responsive copolymer, was mainly synthesized by Michael step polymerization. Thioridazine (Thz), which was reported to selectively eliminate cancer stem cells (CSCs), was loaded into PEG-PBAE micelles (PPM) prepared by self-assembly at low concentrations. The critical micelle concentrations (CMC) of PPM in water were 2.49 μg/mL. The pH-responsive PBAE segment was soluble due to protonated tertiary amine groups when the pH decreased below pH 6.8, but it was insoluble at pH 7.4. The Thz-loaded PEG-PBAE micelle (Thz/PPM) exhibited a spherical shape, and the drug loading was 15.5%. In vitro release of Thz/PPM showed that this pH-sensitivity triggered the rapid release of encapsulated Thz in a weakly acidic environment. The in vitro cytotoxicity and cellular uptake of various formulations at pH 7.4 and 5.5 were evaluated on the mammospheres (MS), which were sorted by MCF-7 human breast cancer cell lines and identified to be a CD44

Indexed as

cancer stem cellspH-responsivepolymeric micellespoly(β-amino ester)thioridazine

Identifiers

PMID32019122
PMCPMC7076537
OpenAlexW3003482337

What OpenQuestion holds

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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.