Evidence map›Paper›PMID 27541873›Full record

ArticlePharmaceutical research2016

Vinorelbine Delivery and Efficacy in the MDA-MB-231BR Preclinical Model of Brain Metastases of Breast Cancer.

Ramakrishna Samala, Helen R Thorsheim, Satyanarayana Goda, Kunal Taskar, Brunilde Gril, Patricia S Steeg, Quentin R Smith

Open access · greenAbstract read
In one paragraph

Article in Pharmaceutical research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 9% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. The blood-tumour barrier in cancer biology and therapy.Nature reviews. Clinical oncology · 2021
    Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. 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

7 authors at 3 institutions in 1 country.

Ramakrishna SamalaDepartment of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, 1300 South Coulter Drive, Amarillo, Texas, 79106, USA.
Helen R ThorsheimDepartment of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, 1300 South Coulter Drive, Amarillo, Texas, 79106, USA.
Satyanarayana GodaDepartment of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, 1300 South Coulter Drive, Amarillo, Texas, 79106, USA.
Kunal TaskarDepartment of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, 1300 South Coulter Drive, Amarillo, Texas, 79106, USA.
Brunilde GrilWomen's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, 20892, USA.
Patricia S SteegWomen's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, 20892, USA.
Quentin R SmithDepartment of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, 1300 South Coulter Drive, Amarillo, Texas, 79106, USA. quentin.smith@ttuhsc.edu.
Texas Tech University Health Sciences Center · USCenter for Cancer Research · USTexas Tech University · US

Funding

Molecular Analysis of Breast Cancer Metastasis to the BrainZIABC010538 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI STEEG, PATRICIA SCHRIVER · 2009 to 2025
$17.1M
Molecular Analysis of Breast Cancer Metastasis to the BrainZ01BC010538 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI STEEG, PATRICIA SCHRIVER · 2003 to 2008
$1.3M
Intramural NIH HHS Z01 BC010538Intramural NIH HHS ZIA BC010538
6 · The paper itself

Abstract

purposeTo evaluate vinorelbine drug exposure and activity in brain metastases of the human MDA-MB-231BR breast cancer model using integrated imaging and analysis.

methodsBrain and systemic metastases were created by administration of cancer cells in female NuNu mice. After metastases developed, animals were administered vinorelbine at the maximal tolerated dose (12 mg/kg), and were evaluated thereafter for total and unbound drug pharmacokinetics, biomarker TUNEL staining, and barrier permeability to Texas red.

resultsMedian brain metastasis drug exposure was 4-fold greater than normal brain, yet only ~8% of non-barrier systemic metastases, which suggests restricted brain exposure. Unbound vinorelbine tissue/plasma partition coefficient, K

conclusionsVinorelbine exposure at maximum tolerated dose was less than one-tenth that in systemic metastases in >70% of brain metastases, and was associated with negligible biomarker effect. In small subregions of the highest uptake brain metastases, compromise of blood-tumor barrier appeared complete. The results suggest that restricted delivery accounts for 80% of the compromise in drug efficacy for vinorelbine against this model.

Indexed as

AnimalsAntineoplastic Agents, PhytogenicApoptosisBiological AvailabilityBlood-Brain BarrierBrainBrain NeoplasmsCell Line, TumorDelayed-Action PreparationsFemaleHumansMice, NudePermeabilityTissue DistributionTriple Negative Breast NeoplasmsVinblastineAntineoplastic Agents, PhytogenicDelayed-Action PreparationsVinblastineVinorelbineblood–brain barrierbrain metastasesbreast cancerpermeabilityvinorelbine

Identifiers

PMID27541873
PMCPMC7818344
OpenAlexW2517125345

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.