Evidence map›Paper›PMID 25310840›Full record

ArticleJournal of the American Chemical Society2014

pH and amphiphilic structure direct supramolecular behavior in biofunctional assemblies.

Tyson J Moyer, Joel A Finbloom, Feng Chen, Daniel J Toft, Vincent L Cryns, Samuel I Stupp

Abstract read
In one paragraph

Article in Journal of the American Chemical Society, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
–field-weighted citation impact
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

40 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. ATP-Regulated Formation of Transient Peptide Amphiphiles Superstructures.Small (Weinheim an der Bergstrasse, Germany) · 2025
    Article
  9. Review
  10. Review
  11. Engineering a nanoantibiotic system displaying dual mechanism of action.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  12. Review
  13. Peptides as carriers of active ingredients: A review.Current research in food science · 2023
    Review
  14. Review
  15. Self-Assembling Peptide-Based Hydrogels for Wound Tissue Repair.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022
    Review
  16. Review
  17. Article
  18. Article
  19. Self-Assembling Peptides: From Design to Biomedical Applications.International journal of molecular sciences · 2021
    Review
  20. 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.

Tyson J MoyerInstitute for BioNanotechnology in Medicine and ∥Department of Medicine, Feinberg School of Medicine, Northwestern University , Chicago, Illinois 60611, United States.
Joel A Finbloom
Feng Chen
Daniel J Toft
Vincent L Cryns
Samuel I Stupp

Funding

Tumor Environment and Metastasis (TEAM) Research ProgramP30CA060553 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Daniela E Matei · 1993 to 2026
$153.9M
Theranostic Magnetic Nanostructures for the Molecular Imaging of CancerU54CA151880 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI MIRKIN, CHAD A. · 2010 to 2014
$11.5M
Nanotechnology Strategies for Growth of Bones and TeethR01DE015920 · NIDCR · NORTHWESTERN UNIVERSITY AT CHICAGO · PI SNEAD, MALCOLM L., STUPP, SAMUEL I · 2005 to 2015
$5.8M
NCI NIH HHS 5U54CA151880-03NCI NIH HHS P30 CA060553NCI NIH HHS U54 CA151880NIDCR NIH HHS 5R01DE015920-09NIDCR NIH HHS R01 DE015920
6 · The paper itself

Abstract

Supramolecular self-assembly offers promising new ways to control nanostructure morphology and respond to external stimuli. A pH-sensitive self-assembled system was developed to both control nanostructure shape and respond to the acidic microenvironment of tumors using self-assembling peptide amphiphiles (PAs). By incorporating an oligo-histidine H6 sequence, we developed two PAs that self-assembled into distinct morphologies on the nanoscale, either as nanofibers or spherical micelles, based on the incorporation of the aliphatic tail on the N-terminus or near the C-terminus, respectively. Both cylinder and sphere-forming PAs demonstrated reversible disassembly between pH 6.0 and 6.5 upon protonation of the histidine residues in acidic solutions. These PAs were then characterized and assessed for their potential to encapsulate hydrophobic chemotherapies. The H6-based nanofiber assemblies encapsulated camptothecin (CPT) with up to 60% efficiency, a 7-fold increase in CPT encapsulation relative to spherical micelles. Additionally, pH-sensitive nanofibers showed improved tumor accumulation over both spherical micelles and nanofibers that did not change morphologies in acidic environments. We have demonstrated that the morphological transitions upon changes in pH of supramolecular nanostructures affect drug encapsulation and tumor accumulation. Our findings also suggest that these supramolecular events can be tuned by molecular design to improve the pharmacologic properties of nanomedicines.

Indexed as

Hydrophobic and Hydrophilic InteractionsAnimalsAntineoplastic AgentsCell Line, TumorFemaleHistidineHumansHydrogen-Ion ConcentrationMiceNanofibersPeptidesTissue DistributionXenograft Model Antitumor AssaysAntineoplastic AgentsHistidinePeptides

Identifiers

PMID25310840
PMCPMC4210119

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.