Evidence map›Paper›PMID 33378681›Full record

ArticleCell reports2020

Aging-Associated Alterations in Mammary Epithelia and Stroma Revealed by Single-Cell RNA Sequencing.

Carman Man-Chung Li, Hana Shapiro, Christina Tsiobikas, Laura M Selfors, Huidong Chen, Jennifer Rosenbluth, Kaitlin Moore, Kushali P Gupta, G Kenneth Gray, Yaara Oren and 5 more

Open access · goldAbstract read
In one paragraph

Article in Cell reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 116 papers.

0numbers the graph read from it
0cells of the map it votes in
116citing papers in PubMed
8.6field-weighted citation impact, top 1% 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

116 citing papers in PubMed, 198 citations in OpenAlex.

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  20. METTL3-dependent m6A RNA methylation suppresses aberrant mammary epithelial differentiation and neoplastic transformation.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article

56 more citing papers are in PubMed but not listed here.

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

15 authors at 3 institutions in 1 country.

Carman Man-Chung LiDepartment of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.
Hana ShapiroDepartment of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.
Christina TsiobikasDepartment of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.
Laura M SelforsDepartment of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.
Huidong ChenBroad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Molecular Pathology Unit & Cancer Center, Massachusetts General Hospital Research Institute and Harvard Medical School, Charlestown, MA 02129, USA.
Jennifer RosenbluthDepartment of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.
Kaitlin MooreDepartment of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.
Kushali P GuptaDepartment of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.
G Kenneth GrayDepartment of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.
Yaara OrenDepartment of Cell Biology, Harvard Medical School, Boston, MA 02115, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.
Michael J SteinbaughDepartment of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
Jennifer L GuerrieroBreast Tumor Immunology Laboratory, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Division of Breast Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, MA 02115, USA.
Luca PinelloBroad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Molecular Pathology Unit & Cancer Center, Massachusetts General Hospital Research Institute and Harvard Medical School, Charlestown, MA 02129, USA.
Aviv RegevBroad Institute of MIT and Harvard, Cambridge, MA 02142, USA.
Joan S BruggeDepartment of Cell Biology, Harvard Medical School, Boston, MA 02115, USA. Electronic address: joan_brugge@hms.harvard.edu.
Harvard University · USBroad Institute · USBrigham and Women's Hospital · US

Funding

Tracking the evolution of breast cancer through single cell analyses of premalignant breast tissues from women at high risk for cancer developmentR35CA242428 · NCI · HARVARD MEDICAL SCHOOL · PI BRUGGE, JOAN SIEFERT · 2019 to 2025
$7.1M
Multiscale exploration of the functional non-coding genomeR35HG010717 · NHGRI · MASSACHUSETTS GENERAL HOSPITAL · PI PINELLO, LUCA · 2019 to 2023
$2.6M
Discovering disease-causal variants by linking genetic and epigenetic variationR00HG008399 · NHGRI · MASSACHUSETTS GENERAL HOSPITAL · PI PINELLO, LUCA · 2017 to 2019
$747k
Effects of Brca1 Heterozygosity on Mammary Gland BiologyF31CA228200 · NCI · HARVARD MEDICAL SCHOOL · PI GRAY, GARY KENNETH · 2018 to 2020
$103k
NCI NIH HHS F31 CA228200NCI NIH HHS R35 CA242428NHGRI NIH HHS R00 HG008399NHGRI NIH HHS R35 HG010717
6 · The paper itself

Abstract

Aging is closely associated with increased susceptibility to breast cancer, yet there have been limited systematic studies of aging-induced alterations in the mammary gland. Here, we leverage high-throughput single-cell RNA sequencing to generate a detailed transcriptomic atlas of young and aged murine mammary tissues. By analyzing epithelial, stromal, and immune cells, we identify age-dependent alterations in cell proportions and gene expression, providing evidence that suggests alveolar maturation and physiological decline. The analysis also uncovers potential pro-tumorigenic mechanisms coupled to the age-associated loss of tumor suppressor function and change in microenvironment. In addition, we identify a rare, age-dependent luminal population co-expressing hormone-sensing and secretory-alveolar lineage markers, as well as two macrophage populations expressing distinct gene signatures, underscoring the complex heterogeneity of the mammary epithelia and stroma. Collectively, this rich single-cell atlas reveals the effects of aging on mammary physiology and can serve as a useful resource for understanding aging-associated cancer risk.

Indexed as

Gene Expression RegulationTranscriptomeAgingAnimalsBiomarkersCells, CulturedCellular SenescenceDendritic CellsEpithelial CellsFemaleGenes, Tumor SuppressorHigh-Throughput Nucleotide SequencingLymphocytesMacrophagesMammary Glands, AnimalMice, Inbred C57BLBiomarkersagingendothelial cellsfibroblastsluminal and myoepithelial cellsmacrophagesmammary epithelia and stromasingle-cell RNA-seq

Identifiers

PMID33378681
PMCPMC7898263
OpenAlexW3116649600

What OpenQuestion holds

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Registered trials

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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.