Evidence map›Paper›PMID 24379910›Full record

ArticleACS medicinal chemistry letters2013

Effectively delivering a unique hsp90 inhibitor using star polymers.

Seong Jong Kim, Deborah M Ramsey, Cyrille Boyer, Thomas P Davis, Shelli R McAlpine

Abstract read
In one paragraph

Article in ACS medicinal chemistry letters, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
–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

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Review
  4. Article
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

5 authors.

Seong Jong KimDepartment of Chemistry, University of New South Wales, Sydney, NSW 2052 Australia.
Deborah M RamseyDepartment of Chemistry, University of New South Wales, Sydney, NSW 2052 Australia.
Cyrille BoyerAustralian Centre for Nanomedicine, University of New South Wales, Sydney, NSW 2052 Australia.
Thomas P DavisAustralian Centre for Nanomedicine, University of New South Wales, Sydney, NSW 2052 Australia.
Shelli R McAlpineDepartment of Chemistry, University of New South Wales, Sydney, NSW 2052 Australia.

Funding

Minority Health &Health Disparities International Research Training ProgramT37MD001442 · NIMHD · SAN DIEGO STATE UNIVERSITY · PI PLEMMONS, DENA · 2005 to 2018
$3.3M
San Diego PREP Scholars ProgramR25GM064107 · NIGMS · SAN DIEGO STATE UNIVERSITY · PI POZOS, ROBERT S · 2002 to 2006
$1.6M
Conformational based design and development of antitumor agentsR01CA137873 · NCI · UNIVERSITY OF NEW SOUTH WALES · PI MCALPINE, SHELLI R · 2009 to 2012
$1.3M
MINORITY INTERNATIONAL RESEARCH TRAINING PROGRAM (MIRT)T37TW000067 · FIC · SAN DIEGO STATE UNIVERSITY · PI POZOS, ROBERT S · 1995 to 2004
$1.2M
FIC NIH HHS T37 TW000067NCI NIH HHS R01 CA137873NIGMS NIH HHS R25 GM064107NIMHD NIH HHS T37 MD001442
6 · The paper itself

Abstract

We report the synthesis of a novel heat shock protein 90 (hsp90) inhibitor conjugated to a star polymer. Using reversible addition-fragmentation chain-transfer (RAFT) polymerization, we prepared star polymers comprised of PEG attached to a predesigned functional core. The stars were cross-linked using disulfide linkers, and a tagged version of our hsp90 inhibitor was conjugated to the polymer core to generate nanoparticles (14 nM). Dynamic light scattering showed that the nanoparticles were stable in cell growth media for 5 days, and HPLC analysis of compound-release at 3 different pH values showed that release was pH dependent. Cell cytotoxicity studies and confocal microscopy verify that our hsp90 inhibitor was delivered to cells using this nanoparticle delivery system. Further, delivery of our hsp90 inhibitor using star polymer induces apoptosis by a caspase 3-dependent pathway. These studies show that we can deliver our hsp90 inhibitor effectively using star polymers, and induce apoptosis by the same pathway as the parent compound.

Indexed as

cyclic peptidesdrug deliverydrug-peptide conjugationHeat shock protein 90hsp90macrocyclesnanoparticlespolymersstar polymer

Identifiers

PMID24379910
PMCPMC3873631

What OpenQuestion holds

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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.