Mechanostimulation of breast myoepithelial cells induces functional changes associated with DCIS progression to invasion
Abstract Women with ductal carcinoma in situ (DCIS) have an increased risk of progression to invasive breast cancer. Although not all women with DCIS will progress to invasion, all are treated as such, emphasising the need to identify prognostic biomarkers. We have previously shown that altered myoe...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-09-01
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| Series: | npj Breast Cancer |
| Online Access: | https://doi.org/10.1038/s41523-022-00464-4 |
| _version_ | 1797642404340170752 |
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| author | Mary-Kate Hayward Michael D. Allen Jennifer J. Gomm Iain Goulding Clare L. Thompson Martin M. Knight John F. Marshall J. Louise Jones |
| author_facet | Mary-Kate Hayward Michael D. Allen Jennifer J. Gomm Iain Goulding Clare L. Thompson Martin M. Knight John F. Marshall J. Louise Jones |
| author_sort | Mary-Kate Hayward |
| collection | DOAJ |
| description | Abstract Women with ductal carcinoma in situ (DCIS) have an increased risk of progression to invasive breast cancer. Although not all women with DCIS will progress to invasion, all are treated as such, emphasising the need to identify prognostic biomarkers. We have previously shown that altered myoepithelial cells in DCIS predict disease progression and recurrence. By analysing DCIS duct size in sections of human breast tumour samples, we identified an associated upregulation of integrin β6 and an increase in periductal fibronectin deposition with increased DCIS duct size that associated with the progression of DCIS to invasion. Our modelling of the mechanical stretching myoepithelial cells undergo during DCIS progression confirmed the upregulation of integrin β6 and fibronectin expression in isolated primary and cell line models of normal myoepithelial cells. Our studies reveal that this mechanostimulated DCIS myoepithelial cell phenotype enhances invasion in a TGFβ-mediated upregulation of MMP13. Immunohistochemical analysis identified that MMP13 was specifically upregulated in DCIS, and it was associated with progression to invasion. These findings implicate tissue mechanics in altering the myoepithelial cell phenotype in DCIS, and that these alterations may be used to stratify DCIS patients into low and high risk for invasive progression. |
| first_indexed | 2024-03-11T13:59:45Z |
| format | Article |
| id | doaj.art-df3865fd8d414597839305295fcc1d88 |
| institution | Directory Open Access Journal |
| issn | 2374-4677 |
| language | English |
| last_indexed | 2024-03-11T13:59:45Z |
| publishDate | 2022-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Breast Cancer |
| spelling | doaj.art-df3865fd8d414597839305295fcc1d882023-11-02T05:20:49ZengNature Portfolionpj Breast Cancer2374-46772022-09-018111210.1038/s41523-022-00464-4Mechanostimulation of breast myoepithelial cells induces functional changes associated with DCIS progression to invasionMary-Kate Hayward0Michael D. Allen1Jennifer J. Gomm2Iain Goulding3Clare L. Thompson4Martin M. Knight5John F. Marshall6J. Louise Jones7Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science CentreCentre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science CentreCentre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science CentreCentre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science CentreSchool of Engineering and Materials Science, Queen Mary University of LondonSchool of Engineering and Materials Science, Queen Mary University of LondonCentre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science CentreCentre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science CentreAbstract Women with ductal carcinoma in situ (DCIS) have an increased risk of progression to invasive breast cancer. Although not all women with DCIS will progress to invasion, all are treated as such, emphasising the need to identify prognostic biomarkers. We have previously shown that altered myoepithelial cells in DCIS predict disease progression and recurrence. By analysing DCIS duct size in sections of human breast tumour samples, we identified an associated upregulation of integrin β6 and an increase in periductal fibronectin deposition with increased DCIS duct size that associated with the progression of DCIS to invasion. Our modelling of the mechanical stretching myoepithelial cells undergo during DCIS progression confirmed the upregulation of integrin β6 and fibronectin expression in isolated primary and cell line models of normal myoepithelial cells. Our studies reveal that this mechanostimulated DCIS myoepithelial cell phenotype enhances invasion in a TGFβ-mediated upregulation of MMP13. Immunohistochemical analysis identified that MMP13 was specifically upregulated in DCIS, and it was associated with progression to invasion. These findings implicate tissue mechanics in altering the myoepithelial cell phenotype in DCIS, and that these alterations may be used to stratify DCIS patients into low and high risk for invasive progression.https://doi.org/10.1038/s41523-022-00464-4 |
| spellingShingle | Mary-Kate Hayward Michael D. Allen Jennifer J. Gomm Iain Goulding Clare L. Thompson Martin M. Knight John F. Marshall J. Louise Jones Mechanostimulation of breast myoepithelial cells induces functional changes associated with DCIS progression to invasion npj Breast Cancer |
| title | Mechanostimulation of breast myoepithelial cells induces functional changes associated with DCIS progression to invasion |
| title_full | Mechanostimulation of breast myoepithelial cells induces functional changes associated with DCIS progression to invasion |
| title_fullStr | Mechanostimulation of breast myoepithelial cells induces functional changes associated with DCIS progression to invasion |
| title_full_unstemmed | Mechanostimulation of breast myoepithelial cells induces functional changes associated with DCIS progression to invasion |
| title_short | Mechanostimulation of breast myoepithelial cells induces functional changes associated with DCIS progression to invasion |
| title_sort | mechanostimulation of breast myoepithelial cells induces functional changes associated with dcis progression to invasion |
| url | https://doi.org/10.1038/s41523-022-00464-4 |
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