Optimizing metastatic-cascade-dependent Rac1 targeting in breast cancer: Guidance using optical window intravital FRET imaging
| Autor: | Laura M. Machesky, Sharissa L. Latham, Karen Blyth, Owen J. Sansom, Paul Timpson, Cris S. Guaman, Victoria Lee, Nicola Ferrari, Anaiis Zaratzian, Sean C. Warren, Susan M. Mason, Pauline Mélénec, Lisa M Ooms, C. Elizabeth Caldon, Andrew M. Da Silva, Andrew T. McCulloch, Michael F. Olson, Xanthe L. Metcalf, Ghazal Sultani, Monica Phimmachanh, David Herrmann, Michael Tayao, Max Nobis, Alessia Floerchinger, Janett Stoehr, Jennifer P. Morton, Anna-Karin E. Johnsson, Christina Anne Mitchell, Heather J. Spence, Kendelle J. Murphy, David R. Croucher, Sonia Rolo, Heidi C.E. Welch, Young-Kyung Lee, Michael S. Samuel, Laura McDonald, Kurt I. Anderson |
|---|---|
| Přispěvatelé: | Floerchinger, Alessia, Murphy, Kendelle J, Latham, Sharissa L, Warren, Sean C, Samuel, Michael S, Nobis, Max |
| Rok vydání: | 2021 |
| Předmět: |
rac1 GTP-Binding Protein
FLIM Lung Neoplasms Cell Survival QH301-705.5 drug response RAC1 Breast Neoplasms Biosensing Techniques FRET biosensors Tumor vasculature small GTPases General Biochemistry Genetics and Molecular Biology Metastasis Imaging Mice Breast cancer Cell Movement Cell Line Tumor Fluorescence Resonance Energy Transfer Medicine Animals Humans metastasis Biology (General) Metastatic cascade Mice Inbred BALB C RAc1 activity business.industry imaging Intravital Imaging medicine.disease Förster resonance energy transfer Pyrimidines Tumor progression Cancer research Aminoquinolines Female intravital imaging single-cell intravital imaging business Shear Strength Rac1 Signal Transduction |
| Zdroj: | Cell Reports, Vol 36, Iss 11, Pp 109689-(2021) |
| DOI: | 10.25418/crick.16676749 |
| Popis: | Assessing drug response within live native tissue provides increased fidelity with regards to optimizing efficacy while minimizing off-target effects. Here, using longitudinal intravital imaging of a Rac1-Forster resonance energy transfer (FRET) biosensor mouse coupled with in vivo photoswitching to track intratumoral movement, we help guide treatment scheduling in a live breast cancer setting to impair metastatic progression. We uncover altered Rac1 activity at the center versus invasive border of tumors and demonstrate enhanced Rac1 activity of cells in close proximity to live tumor vasculature using optical window imaging. We further reveal that Rac1 inhibition can enhance tumor cell vulnerability to fluid-flow-induced shear stress and therefore improves overall anti-metastatic response to therapy during transit to secondary sites such as the lung. Collectively, this study demonstrates the utility of single-cell intravital imaging in vivo to demonstrate that Rac1 inhibition can reduce tumor progression and metastases in an autochthonous setting to improve overall survival. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|