Mei, J.* ; Böhland, C.* ; Geiger, A.* ; Baur, I.* ; Berner, K.* ; Heuer, S. ; Liu, X. ; Mataite, L.* ; Melo-Narváez, M.C.* ; Özkaya, E.* ; Rupp, A.* ; Siebenwirth, C.* ; Thoma, F.* ; Kling, M.F.* ; Friedl, A.A.*
Development of a model for fibroblast-led collective migration from breast cancer cell spheroids to study radiation effects on invasiveness.
Radiat. Oncol. 16:159 (2021)
Background: Invasiveness is a major factor contributing to metastasis of tumour cells. Given the broad variety and plasticity of invasion mechanisms, assessing potential metastasis-promoting effects of irradiation for specific mechanisms is important for further understanding of potential adverse effects of radiotherapy. In fibroblast-led invasion mechanisms, fibroblasts produce tracks in the extracellular matrix in which cancer cells with epithelial traits can follow. So far, the influence of irradiation on this type of invasion mechanisms has not been assessed. Methods: By matrix-embedding coculture spheroids consisting of breast cancer cells (MCF-7, BT474) and normal fibroblasts, we established a model for fibroblast-led invasion. To demonstrate applicability of this model, spheroid growth and invasion behaviour after irradiation with 5 Gy were investigated by microscopy and image analysis. Results: When not embedded, irradiation caused a significant growth delay in the spheroids. When irradiating the spheroids with 5 Gy before embedding, we find comparable maximum migration distance in fibroblast monoculture and in coculture samples as seen in unirradiated samples. Depending on the fibroblast strain, the number of invading cells remained constant or was reduced. Conclusion: In this spheroid model and with the cell lines and fibroblast strains used, irradiation does not have a major invasion-promoting effect. 3D analysis of invasiveness allows to uncouple effects on invading cell number and maximum invasion distance when assessing radiation effects.
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Times Cited
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Carcinoma-cells; Invasion; Image; Expression; Platform; Growth
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2021
Prepublished im Jahr
HGF-Berichtsjahr
2021
ISSN (print) / ISBN
1748-717X
e-ISSN
1748-717X
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 16,
Heft: 1,
Seiten: ,
Artikelnummer: 159
Supplement: ,
Reihe
Verlag
BioMed Central
Verlagsort
Campus, 4 Crinan St, London N1 9xw, England
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30203 - Molecular Targets and Therapies
30201 - Metabolic Health
Forschungsfeld(er)
Radiation Sciences
Helmholtz Diabetes Center
PSP-Element(e)
G-501000-001
G-502296-001
Förderungen
Helmholtz-Gemeinschaft
Deutsche Forschungsgemeinschaft
Copyright
Erfassungsdatum
2021-09-22