Evidence map›Paper›PMID 33239740›Full record

ArticleScientific reports2020

Secreted sphingomyelins modulate low mammary cancer incidence observed in certain mammals.

Melissa M Ledet, Rebecca M Harman, Jennifer C Fan, Emily Schmitt-Matzen, Maria Elena Diaz-Rubio, Sheng Zhang, Gerlinde R Van de Walle

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.8field-weighted citation impact, top 30% 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

9 citing papers in PubMed, 13 citations in OpenAlex.

  1. Mammalian Species-Specific Resistance to Mammary Cancer.Journal of mammary gland biology and neoplasia · 2025
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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

7 authors at 1 institution in 1 country.

Melissa M LedetBaker Institute for Animal Health, College of Veterinary Medicine, Cornell University, 235 Hungerford Hill Road, Ithaca, NY, 14853, USA.
Rebecca M HarmanBaker Institute for Animal Health, College of Veterinary Medicine, Cornell University, 235 Hungerford Hill Road, Ithaca, NY, 14853, USA.
Jennifer C FanBaker Institute for Animal Health, College of Veterinary Medicine, Cornell University, 235 Hungerford Hill Road, Ithaca, NY, 14853, USA.
Emily Schmitt-MatzenBaker Institute for Animal Health, College of Veterinary Medicine, Cornell University, 235 Hungerford Hill Road, Ithaca, NY, 14853, USA.
Maria Elena Diaz-RubioProteomic and Metabolomics Facility, Cornell University, Ithaca, NY, 14853, USA.
Sheng ZhangProteomic and Metabolomics Facility, Cornell University, Ithaca, NY, 14853, USA.
Gerlinde R Van de WalleBaker Institute for Animal Health, College of Veterinary Medicine, Cornell University, 235 Hungerford Hill Road, Ithaca, NY, 14853, USA. grv23@cornell.edu.
Cornell University · US

Funding

Cornell University Veterinary Investigator ProgramT35OD010941 · OD · CORNELL UNIVERSITY · PI WEISS, ROBERT S · 2012 to 2024
$813k
Acquisition of a Hybrid Quadrupole Time of Flight LC-MS/MS System for the CornellS10OD017992 · OD · CORNELL UNIVERSITY · PI ZHANG, SHENG · 2014 to 2014
$600k
NIH HHS 1S10 OD017992-01NIH HHS S10 OD017992NIH HHS T35 OD010941
6 · The paper itself

Abstract

Determining mechanisms that naturally protect species from developing cancer is critical in order to prevent and treat cancer. Here, we describe a novel cancer-suppressing mechanism, via the secretion of bioactive factors by mammary cells, that is present in domesticated mammals with a low mammary cancer incidence. Specifically, these bioactive factors induced triple-negative breast cancer cell (TNBC) death in vitro and reduced tumorigenicity in a xenograft TNBC mouse model in vivo. RNA deep sequencing showed significant downregulation of genes associated with breast cancer progression in secretome-cultured TNBC cells. Further in-depth multi-omics analysis identified sphingomyelins as key secreted factors, and their role was confirmed via inhibition of the sphingomyelin signaling pathway. We speculate that secreted sphingomyelins in the mammary gland of mammals with a naturally low incidence of mammary cancer mediate the elimination of cancer cells. This study contributes to the growing list of protective mechanisms identified in cancer-proof species.

Indexed as

AnimalsBreast NeoplasmsCell Line, TumorCell MovementCell ProliferationDisease ProgressionGene ExpressionGene Expression Regulation, NeoplasticHorsesHumansIncidenceMiceMice, NudeSignal TransductionSphingomyelinsTriple Negative Breast NeoplasmsSphingomyelins

Identifiers

PMID33239740
PMCPMC7689471
OpenAlexW3107991004

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.