Evidence map›Paper›PMID 22850291›Full record

ArticleInternational journal of pharmaceutics2012

Cell penetrating peptides fused to a thermally targeted biopolymer drug carrier improve the delivery and antitumor efficacy of an acid-sensitive doxorubicin derivative.

Leslie Walker, Eddie Perkins, Felix Kratz, Drazen Raucher

Abstract read
In one paragraph

Article in International journal of pharmaceutics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

27 citing papers in PubMed, 71 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Review
  18. Review
  19. Article
  20. 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

4 authors at 2 institutions in 1 country.

Leslie WalkerUniversity of Mississippi Medical Center, 2500N State St, Jackson, MS 39216, USA. lrwalker@umc.edu
Eddie Perkins
Felix Kratz
Drazen Raucher
University of Mississippi Medical Center · USJackson Memorial Hospital · US

Funding

Thermally Targeted Cell Cycle Inhibitors for the Treatment of Pancreatic CancerR21CA137418 · NCI · UNIVERSITY OF MISSISSIPPI MED CTR · PI RAUCHER, DRAZEN · 2010 to 2011
$352k
Targeted Delivery of c-Myc Inhibitory PolypeptidesR21CA113813 · NCI · UNIVERSITY OF MISSISSIPPI MED CTR · PI RAUCHER, DRAZEN · 2006 to 2007
$277k
NCI NIH HHS R21 CA113813NCI NIH HHS R21 CA113813-01ANCI NIH HHS R21 CA137418
6 · The paper itself

Abstract

Elastin-like polypeptide (ELP) is a macromolecular carrier with thermally responsive properties that can passively accumulate in solid tumors and additionally aggregate in tumor tissue when exposed to hyperthermia. In this study, ELP was conjugated to the anticancer drug doxorubicin (DOXO) and three different cell penetrating peptides (CPP) in order to inhibit tumor growth in mice compared to free doxorubicin. Fluorescence microscopy studies in MCF-7 breast carcinoma cells demonstrated that the three different CPP-ELP-DOXO conjugates delivered doxorubicin to the cell nucleus. All CPP-ELP-DOXO conjugates showed cytotoxicity with IC(50) values in the range of 12-30 μM at 42 °C, but the ELP carrier with SynB1 as the cell penetrating peptide had the lowest intrinsic cytotoxicity. Therefore, the antitumor efficacy of SynB1-ELP-DOXO was compared to doxorubicin under hyperthermic conditions. C57BL/6 female mice bearing syngeneic E0771 murine breast tumors were treated with either free doxorubicin or the SynB1-ELP-DOXO conjugate with or without focused hyperthermia on the tumor. Under hyperthermic conditions, tumor inhibition with SynB1-ELP-DOXO was 2-fold higher than under therapy with free doxorubicin at the equivalent dose, and is thus a promising lead candidate for optimizing thermally responsive drug polymer conjugates.

Indexed as

AnimalsAntibiotics, AntineoplasticBreast NeoplasmsCell Line, TumorCell-Penetrating PeptidesCell ProliferationCell SurvivalDoxorubicinDrug CarriersElastinFemaleHumansHydrazonesHydrogen-Ion ConcentrationMCF-7 CellsMiceAntibiotics, AntineoplasticCell-Penetrating PeptidesDOXO-EMCHDoxorubicinDrug CarriersElastinHydrazonesPeptides

Identifiers

PMID22850291
PMCPMC3465682
OpenAlexW2050767781

What OpenQuestion holds

Textmetadata
LicenceTDM
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.