Evidence map›Paper›PMID 30988134›Full record

ArticleJournal of lipid research2019

Genetic and pharmacological inhibition of acid ceramidase prevents asymmetric cell division by neosis.

Shai White-Gilbertson, Ping Lu, James S Norris, Christina Voelkel-Johnson

Open access · hybridAbstract read
In one paragraph

Article in Journal of lipid research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

35 citing papers in PubMed, 38 citations in OpenAlex.

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  12. Surviving the Storm: The Role of Poly- and Depolyploidization in Tissues and Tumors.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
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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 1 institution in 1 country.

Shai White-GilbertsonDepartment of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC 29425.
Ping LuDepartment of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC 29425.
James S NorrisDepartment of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC 29425.
Christina Voelkel-JohnsonDepartment of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC 29425 johnsocv@musc.edu.ORCID 0000-0001-6909-6678
Medical University of South Carolina · US

Funding

Translational Science Laboratory Shared ResourceP30CA138313 · NCI · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI Jian Ouyang · 2009 to 2026
$42.7M
Project 3: Targeting SK2/S1P Signaling for the Regulation of c-Myc and Tumor SuppressionP01CA203628 · NCI · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI BRITTEN, CAROLYN D · 2016 to 2021
$8.9M
NCI NIH HHS P01 CA203628NCI NIH HHS P30 CA138313
6 · The paper itself

Abstract

Radiation treatment failure or relapse after initial response to chemotherapy presents significant clinical challenges in cancer patients. Escape from initial courses of treatment can involve reactivation of embryonic developmental stages, with the formation of polynuclear giant cancer cells (PGCCs). This strategy of dedifferentiation can insulate cancer cells from a variety of treatments and allows a residual subpopulation to reestablish tumors after treatment. Using radiation or docetaxel chemotherapy, we generated PGCCs from prostate cancer cells. Here, we show that expression of acid ceramidase (ASAH1), an enzyme in the sphingolipid pathway linked to therapy resistance and poor outcomes, is elevated in PGCCs. Targeting ASAH1 with shRNA or treatment with the ASAH1 inhibitor, LCL-521, did not impair the formation of PGCCs, but prevented the formation of PGCC progeny that arise through an asymmetric cell division called neosis. Similar results were obtained in lung cancer cells that had been exposed to radiation or cisplatin chemotherapy as stressors. In summary, our data suggest that endoreplication occurs independent of ASAH1 while neosis is ASAH1-dependent in both prostate and lung cancer cells. Because ASAH1 knockout is embryonic lethal but not deleterious to adult animals, targeting this enzyme has the potential to be highly specific to cells undergoing the dedifferentiation process to escape cancer treatments. Pharmacological inhibition of ASAH1 is a potentially powerful strategy to eliminate cells that could otherwise serve as seed populations for recurrence.

Indexed as

A549 CellsAcid CeramidaseApoptosisBlotting, WesternCell DivisionCell Line, TumorCeramidesCisplatinDocetaxelFlow CytometryGene Expression Regulation, NeoplasticHumansLipidomicsRNA, Small InterferingSphingolipidsAcid CeramidaseASAH1 protein, humanCeramidesCisplatinDocetaxelRNA, Small InterferingSphingolipidsapoptosiscancerceramidedrug therapylipidomicspolynuclear giant cancer cellssphingolipids

Identifiers

PMID30988134
PMCPMC6602137
OpenAlexW2940027283

What OpenQuestion holds

Textmetadata
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.