ArticleBioconjugate chemistry2014
Differential polymer structure tunes mechanism of cellular uptake and transfection routes of poly(β-amino ester) polyplexes in human breast cancer cells.
Article in Bioconjugate chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.
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.
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.
Who cites it
49 citing papers in PubMed, 85 citations in OpenAlex.
- Development of bicistronic plasmids and fusion proteins for clinical translation of tumor immune reprogramming.Molecular therapy. Advances · 2026Article
- An Overlooked Formulation Variable: Solvent Reshapes DNA Delivery.ACS macro letters · 2026Article
- Suprachoroidal Delivery of Viral and Nonviral Vectors for Treatment of Retinal and Choroidal Vascular Diseases.American journal of ophthalmology · 2025Review
- Ligand-free biodegradable poly(beta-amino ester) nanoparticles for targeted systemic delivery of mRNA to the lungs.Biomaterials · 2025Article
- Synthesis and characterization of poly (β-amino ester) polyplex nanocarrier with high encapsulation and uptake efficiency: impact of extracellular conditions.Nanomedicine (London, England) · 2025Article
- Advances and prospects of RNA delivery nanoplatforms for cancer therapy.Acta pharmaceutica Sinica. B · 2025Review
- Screening of poly-beta amino ester coated emulsion of ketorolac for cartilage delivery.Journal of materials chemistry. B · 2024Article
- Poly(β-aminoester) Physicochemical Properties Govern the Delivery of siRNA from Electrostatically Assembled Coatings.Biomacromolecules · 2024Article
- Biodegradable Polyester Nanoparticle Vaccines Deliver Self-Amplifying mRNA in Mice at Low Doses.Advanced therapeutics · 2023Article
- Nonviral nanoparticle gene delivery into the CNS for neurological disorders and brain cancer applications.Wiley interdisciplinary reviews. Nanomedicine and nanobiotechnology · 2023Review
- Machine learning guided structure function predictions enable in silico nanoparticle screening for polymeric gene delivery.Acta biomaterialia · 2022Article
- Polymeric nanoparticles for dual-targeted theranostic gene delivery to hepatocellular carcinoma.Science advances · 2022Article
- High-throughput and high-content bioassay enables tuning of polyester nanoparticles for cellular uptake, endosomal escape, and systemic in vivo delivery of mRNA.Science advances · 2022Article
- Poly(Beta-Amino Ester)s as High-Yield Transfection Reagents for Recombinant Protein Production.International journal of nanomedicine · 2022Article
- Synthesis and Characterization of Poly (β-amino Ester) and Applied PEGylated and Non-PEGylated Poly (β-amino ester)/Plasmid DNA Nanoparticles for Efficient Gene Delivery.Frontiers in pharmacology · 2022Article
- Endocytosis of abiotic nanomaterials and nanobiovectors: Inhibition of membrane trafficking.Nano today · 2021Review
- High-throughput evaluation of polymeric nanoparticles for tissue-targeted gene expression using barcoded plasmid DNA.Journal of controlled release : official journal of the Controlled Release Society · 2021Article
- Poly(beta-amino ester) nanoparticles enable tumor-specific TRAIL secretion and a bystander effect to treat liver cancer.Molecular therapy oncolytics · 2021Article
- Lipofection-Mediated Introduction of CRISPR/Cas9 System into Porcine Oocytes and Embryos.Animals : an open access journal from MDPI · 2021Article
- E7-Targeted Nanotherapeutics for Key HPV Afflicted Cervical Lesions by Employing CRISPR/Cas9 and Poly (Beta-Amino Ester).International journal of nanomedicine · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Successful gene delivery with nonviral particles has several barriers, including cellular uptake, endosomal escape, and nuclear transport. Understanding the mechanisms behind these steps is critical to enhancing the effectiveness of gene delivery. Polyplexes formed with poly(β-amino ester)s (PBAEs) have been shown to effectively transfer DNA to various cell types, but the mechanism of their cellular uptake has not been identified. This is the first study to evaluate the uptake mechanism of PBAE polyplexes and the dependence of cellular uptake on the end group and molecular weight of the polymer. We synthesized three different analogues of PBAEs with the same base polymer poly(1,4-butanediol diacrylate-co-4-amino-1-butanol) (B4S4) but with small changes in the end group or molecular weight. We quantified the uptake and transfection efficiencies of the pDNA polyplexes formulated from these polymers in hard-to-transfect triple negative human breast cancer cells (MDA-MB 231). All polymers formed positively charged (10-17 mV) nanoparticles of ∼200 nm in size. Cellular internalization of all three formulations was inhibited the most (60-90% decrease in cellular uptake) by blocking caveolae-mediated endocytosis. Greater inhibition was shown with polymers that had a 1-(3-aminopropyl)-4-methylpiperazine end group (E7) than the others with a 2-(3-aminopropylamino)-ethanol end group (E6) or higher molecular weight. However, caveolae-mediated endocytosis was generally not as efficient as clathrin-mediated endocytosis in leading to transfection. These findings indicate that PBAE polyplexes can be used to transfect triple negative human breast cancer cells and that small changes to the same base polymer can modulate their cellular uptake and transfection routes.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.