Nanoscale tuning of VCAM-1 determines VLA-4-dependent melanoma cell plasticity on RGD motifs
The biophysical fine-tuning of cancer cell plasticity is crucial for tumor progression but remains largely enigmatic. Although vascular cell adhesion molecule-1 (VCAM-1/CD106) has been implicated in melanoma progression, here its presentation on endothelial cells was associated with diminished melan...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
2018
|
| In: |
Molecular cancer research
Year: 2017, Volume: 16, Issue: 3, Pages: 528-542 |
| ISSN: | 1557-3125 |
| DOI: | 10.1158/1541-7786.MCR-17-0272 |
| Online Access: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1158/1541-7786.MCR-17-0272
|
| Author Notes: | Katharina Amschler, Eugen Kossmann, Luise Erpenbeck, Sebastian Kruss, Tillmann Schill, Margarete Schön, Sigrid M. C. Möckel, Joachim P. Spatz, and Michael P. Schön |
| Summary: | The biophysical fine-tuning of cancer cell plasticity is crucial for tumor progression but remains largely enigmatic. Although vascular cell adhesion molecule-1 (VCAM-1/CD106) has been implicated in melanoma progression, here its presentation on endothelial cells was associated with diminished melanoma cell spreading. Using a specific nanoscale modulation of VCAM-1 (tunable from 70 to 670 ligands/μm²) next to integrin ligands (RGD motifs) in a bifunctional system, reciprocal regulation of integrin α4 (ITGA4/VLA-4/CD49d)-dependent adhesion and spreading of melanoma cells was found. As the VCAM-1/VLA-4 receptor pair facilitated adhesion, while at the same time antagonizing RGD-mediated spreading, melanoma cell morphogenesis on these bifunctional matrices was directly regulated by VCAM-1 in a dichotomic and density-dependent fashion. This was accompanied by concordant regulation of F-actin cytoskeleton remodeling, Rac1-expression, and paxillin-related adhesion formation. The novel function of VCAM-1 was corroborated in vivo using two murine models of pulmonary metastasis. The regulation of melanoma cell plasticity by VCAM-1 highlights the complex regulation of tumor-matrix interactions.Implications: Nanotechnology has revealed a novel dichotomic function of the VCAM-1/VLA-4 interaction on melanoma cell plasticity, as nanoscale tuning of this interaction reciprocally determines adhesion and spreading in a ligand density-dependent manner. Mol Cancer Res; 16(3); 528-42. ©2017 AACR. |
|---|---|
| Item Description: | Published online first December 8, 2017 Gesehen am 23.05.2018 |
| Physical Description: | Online Resource |
| ISSN: | 1557-3125 |
| DOI: | 10.1158/1541-7786.MCR-17-0272 |