ArticleACS chemical biology2020
Cellular Uptake and Cytosolic Delivery of a Cyclic Cystine Knot Scaffold.
Article in ACS chemical biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 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
8 citing papers in PubMed, 20 citations in OpenAlex.
- Molecular insights into anti-cancer cyclotides and their interaction with breast cancer targets: an in silico study.Molecular diversity · 2026Article
- Recent advances in methods for quantifying the cell penetration of macromolecules.Current opinion in chemical biology · 2024Review
- Comparing Cell Penetration of Biotherapeutics across Human Cell Lines.ACS chemical biology · 2024Article
- Importance of the Cyclic Cystine Knot Structural Motif for Immunosuppressive Effects of Cyclotides.ACS chemical biology · 2021Article
- Parallel Screening Using the Chloroalkane Penetration Assay Reveals Structure-Penetration Relationships.ACS chemical biology · 2021Article
- Cyclic Peptoid-Peptide Hybrids as Versatile Molecular Transporters.Frontiers in chemistry · 2021Article
- A critical analysis of methods used to investigate the cellular uptake and subcellular localization of RNA therapeutics.Nucleic acids research · 2020Review
- Quantitative measurement of cytosolic penetration using the chloroalkane penetration assay.Methods in enzymology · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
Abstract
Cyclotides are macrocyclic peptides with exceptionally stable structures and have been reported to penetrate cells, making them promising scaffolds for the delivery of inhibitory peptides to target intracellular proteins. However, their cellular uptake and cytosolic localization have been poorly understood until now, which has limited their therapeutic potential. In this study, the recently developed chloroalkane penetration assay was combined with established assays to characterize the cellular uptake and cytosolic delivery of the prototypic cyclotide, kalata B1. We show that kalata B1 enters the cytosol at low efficiency. A structure-activity study of residues in loop 6 showed that some modifications, such as increasing cationic residue content, did not affect delivery efficiency, whereas others, including introducing a single hydrophobic amino acid, did significantly improve cytosolic delivery. Our results provide a foundation for the further development of a structurally unique class of scaffolds for the delivery of therapeutic cargoes into cells.
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.