Evidence map›Paper›PMID 20958074›Full record

ArticleMolecular pharmaceutics2010

Drug resistance in breast cancer cells: biophysical characterization of and doxorubicin interactions with membrane lipids.

Chiranjeevi Peetla, Radhika Bhave, Sivakumar Vijayaraghavalu, Andrew Stine, Edgar Kooijman, Vinod Labhasetwar

Abstract read
In one paragraph

Article in Molecular pharmaceutics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% 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

60 citing papers in PubMed, 1 synthesis or guideline pooled it, 159 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Multifunctional Nanomaterials Mediate Cholesterol Depletion for Cancer Treatment.Angewandte Chemie (International ed. in English) · 2024
    Review
  13. Article
  14. Review
  15. Review
  16. Review
  17. Breast Cancer Chemoresistance: Insights into the Regulatory Role of lncRNA.International journal of molecular sciences · 2023
    Review
  18. Article
  19. Review
  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

6 authors at 2 institutions in 1 country.

Chiranjeevi PeetlaDepartment of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195, United States.
Radhika Bhave
Sivakumar Vijayaraghavalu
Andrew Stine
Edgar Kooijman
Vinod Labhasetwar
Cleveland Clinic · USKent State University · US

Funding

Drug Resistance In Cancer TherapyR01CA149359 · NCI · CLEVELAND CLINIC LERNER COM-CWRU · PI LABHASETWAR, VINOD D · 2010 to 2014
$2.0M
NCI NIH HHS R01 CA149359
6 · The paper itself

Abstract

Understanding the role of lipids in drug transport is critical in cancer chemotherapy to overcome drug resistance. In this study, we isolated lipids from doxorubicin-sensitive (MCF-7) and -resistant (MCF-7/ADR) breast cancer cells to characterize the biophysical properties of membrane lipids (particularly lipid packing and membrane fluidity) and to understand the role of the interaction of cell membrane lipids with drug/nanocarrier on drug uptake and efficacy. Resistant cell membrane lipids showed significantly different composition and formed more condensed, less fluid monolayers than did lipids from sensitive cells. Doxorubicin, used as a model anticancer agent, showed a strong hydrophobic interaction with resistant cell membrane lipids but significantly less interaction, as well as a different pattern of interaction (i.e., ionic), with sensitive ones. The threshold intracellular doxorubicin concentration required to produce an antiproliferative effect was similar for both sensitive and resistant cell lines, suggesting that drug transport is a major barrier in determining drug efficacy in resistant cells. In addition to the biophysical characteristics of resistant cell membrane lipids, lipid-doxorubicin interactions appear to decrease intracellular drug transport via diffusion as the drug is trapped in the lipid bilayer. The rigid nature of resistant cell membranes also seems to influence endosomal functions that inhibit drug uptake when a liposomal formulation of doxorubicin is used. In conclusion, biophysical properties of resistant cell membrane lipids significantly influence drug transport, and hence drug efficacy. A better understanding of the mechanisms of cancer drug resistance is vital to developing more effective therapeutic interventions. In this regard, biophysical interaction studies with cell membrane lipids might be helpful to improve drug transport and efficacy through drug discovery and/or drug delivery approaches by overcoming the lipid barrier in resistant cells.

Indexed as

Drug Resistance, NeoplasmBreast NeoplasmsCell MembraneCell ProliferationCell SurvivalDoxorubicinDrug Screening Assays, AntitumorFemaleHumansMembrane LipidsTumor Cells, CulturedDoxorubicinMembrane Lipids

Identifiers

PMID20958074
PMCPMC2997943
OpenAlexW2067673216

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.