Optogenetics: Optical Control of a Photoactivatable Rac in Living Cells

Author(s):  
Taofei Yin ◽  
Yi I. Wu
Keyword(s):  
2018 ◽  
Vol 114 (3) ◽  
pp. 318a
Author(s):  
Paul V. Ruijgrok ◽  
Rajarshi P. Ghosh ◽  
Muneaki Nakamura ◽  
Robert Chen ◽  
Vipul Vachharajani ◽  
...  
Keyword(s):  

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Adrian Müller-Deku ◽  
Joyce C. M. Meiring ◽  
Kristina Loy ◽  
Yvonne Kraus ◽  
Constanze Heise ◽  
...  

Abstract Small molecule inhibitors are prime reagents for studies in microtubule cytoskeleton research, being applicable across a range of biological models and not requiring genetic engineering. However, traditional chemical inhibitors cannot be experimentally applied with spatiotemporal precision suiting the length and time scales inherent to microtubule-dependent cellular processes. We have synthesised photoswitchable paclitaxel-based microtubule stabilisers, whose binding is induced by photoisomerisation to their metastable state. Photoisomerising these reagents in living cells allows optical control over microtubule network integrity and dynamics, cell division and survival, with biological response on the timescale of seconds and spatial precision to the level of individual cells within a population. In primary neurons, they enable regulation of microtubule dynamics resolved to subcellular regions within individual neurites. These azobenzene-based microtubule stabilisers thus enable non-invasive, spatiotemporally precise modulation of the microtubule cytoskeleton in living cells, and promise new possibilities for studying intracellular transport, cell motility, and neuronal physiology.


2016 ◽  
Vol 4 (31) ◽  
pp. 5272-5283 ◽  
Author(s):  
Susana Vaquero ◽  
Caterina Bossio ◽  
Sebastiano Bellani ◽  
Nicola Martino ◽  
Elena Zucchetti ◽  
...  

Different conjugated polymers are proposed as bio-optical interfaces. Selected polymers are capable to sustain thermal sterilization but provide different optical coupling with living cells.


2019 ◽  
Vol 116 (3) ◽  
pp. 259a
Author(s):  
Paul V. Ruijgrok ◽  
Rajarshi P. Ghosh ◽  
Muneaki Nakamura ◽  
Sasha Zemsky ◽  
Robert Chen ◽  
...  
Keyword(s):  

Nanoscale ◽  
2017 ◽  
Vol 9 (47) ◽  
pp. 18690-18698 ◽  
Author(s):  
Yuta Takano ◽  
Reina Munechika ◽  
Vasudevanpillai Biju ◽  
Hideyoshi Harashima ◽  
Hiroshi Imahori ◽  
...  

A conjugate of a carrier and donor/acceptor linked molecules demonstrated a selective accumulation in mitochondria and a successful photoinduced reductive reaction.


Author(s):  
Nicola Martino ◽  
Caterina Bossio ◽  
Susana Vaquero Morata ◽  
Guglielmo Lanzani ◽  
Maria Rosa Antognazza

2021 ◽  
Vol 17 (5) ◽  
pp. 540-548 ◽  
Author(s):  
Paul V. Ruijgrok ◽  
Rajarshi P. Ghosh ◽  
Sasha Zemsky ◽  
Muneaki Nakamura ◽  
Rui Gong ◽  
...  
Keyword(s):  

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