Evidence map›Paper›PMID 8573787›Full record

ArticleMolecular biology of the cell1995

Matrix metalloproteinases are expressed during ductal and alveolar mammary morphogenesis, and misregulation of stromelysin-1 in transgenic mice induces unscheduled alveolar development.

J P Witty, J H Wright, L M Matrisian

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

70 citing papers in PubMed, 193 citations in OpenAlex.

  1. Matrix Metalloproteinases on Skin Photoaging.Journal of cosmetic dermatology · 2024
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  17. Mammary gland reprogramming: metalloproteinases couple form with function.Cold Spring Harbor perspectives in biology · 2011
    Review
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  19. Article
  20. Article

10 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

3 authors at 1 institution in 1 country.

J P WittyDepartment of Cell Biology, Vanderbilt University, Nashville, Tennessee 37232, USA.
J H Wright
L M Matrisian
Vanderbilt University · US

Funding

MULTIDISCIPLINARY BASIC RESEARCH TRAINING IN CANCERT32CA009592 · NCI · VANDERBILT UNIVERSITY · PI Justin M Balko, Julie A Rhoades (Sterling) · 1987 to 2026
$10.4M
TRASIN AND TUMOR PROMOTION AND PROGRESSIONR01CA046843 · NCI · VANDERBILT UNIVERSITY · PI MATRISIAN, LYNN M · 1988 to 2000
$387k
TISSUE CULTURE COREP30HD005797 · NICHD · VANDERBILT UNIVERSITY · PI NAGAMINE, CLAUDE · 1985 to 1996
–
NCI NIH HHS R01-CA46843NCI NIH HHS T32-CA09592NICHD NIH HHS P30-HD05797
6 · The paper itself

Abstract

The matrix-degrading metalloproteinases stromelysin-1, stromelysin-3, and gelatinase A are expressed during ductal branching morphogenesis of the murine mammary gland. Stromelysin-1 expression in particular correlates with ductal elongation, and in situ hybridization and three-dimensional reconstruction studies revealed that stromelysin-1 mRNA was concentrated in stromal fibroblasts along the length of advancing ducts. Transgenic mice expressing an activated form of stromelysin-1 under the control of the MMTV promoter/enhancer exhibited inappropriate alveolar development in virgin females. Ultrastructural analysis demonstrated that the basement membrane underlying epithelial and myoepithelial cells was amorphous and discontinuous compared with the highly ordered basal lamina in control mammary glands. Transgenic mammary glands had at least a twofold increase in the number of cells/unit area and a 1.4-fold increase in the percent of cycling cells by 13 wk of age compared with nontransgenic littermates. In addition, transgenic glands expressed beta-casein mRNA, but not protein, and resembled the proliferative and differentiated state of an animal between 8 and 10 days pregnant. An analysis of metalloproteinase expression in the glands of normal pregnant females demonstrated that the same matrix metalloproteinase family members, including stromelysin-1, were expressed in connective tissue cells surrounding epithelial clusters during the time of lobuloalveolar development. These results suggest that metalloproteinases may assist in remodeling ECM during normal ductal and alveolar branching morphogenesis, and that disruption of the basement membrane by an activated metalloproteinase can affect basic cellular processes of proliferation and differentiation.

Indexed as

Gene Expression Regulation, EnzymologicAmino Acid SequenceAnimalsBase SequenceCell DivisionEpithelial CellsEpitheliumExtracellular MatrixFemaleGelatinasesGene Expression Regulation, DevelopmentalMaleMammary Glands, AnimalMatrix Metalloproteinase 11Matrix Metalloproteinase 2Matrix Metalloproteinase 3GelatinasesMatrix Metalloproteinase 11Matrix Metalloproteinase 2Matrix Metalloproteinase 3MetalloendopeptidasesRNA, Messenger

Identifiers

PMID8573787
PMCPMC301288
OpenAlexW2153188915

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.