Evidence map›Paper›PMID 33372403›Full record

ArticleCancer reports (Hoboken, N.J.)2022

Leptomeningeal metastatic cells adopt two phenotypic states.

Jan Remsik, Yudan Chi, Xinran Tong, Ugur Sener, Camille Derderian, Abigail Park, Fadi Saadeh, Tejus Bale, Adrienne Boire

Open access · hybridAbstract read
In one paragraph

Article in Cancer reports (Hoboken, N.J.), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
3.4field-weighted citation impact, top 6% 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

36 citing papers in PubMed, 50 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Leptomeningeal Disease: Current Approaches and Future Directions.Current neurology and neuroscience reports · 2025
    Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. The anatomic basis of leptomeningeal metastasis.The Journal of experimental medicine · 2024
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  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

9 authors at 1 institution in 1 country.

Jan RemsikHuman Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York City, New York, USA.ORCID 0000-0002-3228-2896
Yudan ChiHuman Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York City, New York, USA.ORCID 0000-0002-4566-3305
Xinran TongHuman Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York City, New York, USA.
Ugur SenerDepartment of Neurology, Memorial Sloan Kettering Cancer Center, New York City, New York, USA.
Camille DerderianHuman Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York City, New York, USA.
Abigail ParkHuman Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York City, New York, USA.
Fadi SaadehHuman Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York City, New York, USA.
Tejus BaleDepartment of Pathology, Memorial Sloan Kettering Cancer Center, New York City, New York, USA.
Adrienne BoireHuman Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York City, New York, USA.ORCID 0000-0002-9029-1248
Memorial Sloan Kettering Cancer Center · US

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Nicholas D Socci · 1985 to 2026
$347.4M
Investigating Microenvironmental Interactions in Leptomeningeal MetastasisR01CA245499 · NCI · SLOAN-KETTERING INST CAN RESEARCH · PI BOIRE, ADRIENNE A. · 2020 to 2024
$2.0M
NCI NIH HHS P30 CA008748NCI NIH HHS R01 CA245499
6 · The paper itself

Abstract

backgroundLeptomeningeal metastasis (LM), or spread of cancer cells into the cerebrospinal fluid (CSF), is characterized by a rapid onset of debilitating neurological symptoms and markedly bleak prognosis. The lack of reproducible in vitro and in vivo models has prevented the development of novel, LM-specific therapies. Although LM allows for longitudinal sampling of floating cancer cells with a spinal tap, attempts to culture patient-derived leptomeningeal cancer cells have not been successful.

aimWe, therefore, employ leptomeningeal derivatives of human breast and lung cancer cell lines that reproduce both floating and adherent phenotypes of human LM in vivo and in vitro. METHODS AND

resultsWe introduce a trypsin/EDTA-based fractionation method to reliably separate the two cell subsets and demonstrate that in vitro cultured floating cells have decreased proliferation rate, lower ATP content, and are enriched in distinct metabolic signatures. Long-term fractionation and transcriptomic analysis suggest high degree plasticity between the two phenotypes in vitro. Floating cells colonize mouse leptomeninges more rapidly and associate with shortened survival. In addition, patients harboring LM diagnosed with CSF disease alone succumbed to the disease earlier than patients with adherent (MRI positive) disease.

conclusionTogether, these data support mechanistic evidence of a metabolic adaptation that allows cancer cells to thrive in their natural environment but leads to death in vitro.

Indexed as

Lung NeoplasmsMeningeal CarcinomatosisAnimalsBiomarkers, TumorCell Line, TumorHumansMicePhenotypeBiomarkers, Tumorcancer plasticitycerebrospinal fluidelectron transport chainleptomeningeal metastasismetabolic adaptation

Identifiers

PMID33372403
PMCPMC7772527
OpenAlexW3003178950

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.