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Photostimulation by Femtosecond Laser Activates Extracellular-signal-regulated Kinase (ERK) Signaling or Mitochondrial Events in Target Cells
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Photostimulation by Femtosecond Laser Activates Extracellular-signal-regulated Kinase (ERK) Signaling or Mitochondrial Events in Target Cells

Photostimulation by Femtosecond Laser Activates Extracellular-signal-regulated Kinase (ERK) Signaling or Mitochondrial Events in Target Cells

DOI:
10.3791/59661-v

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11:00 min

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July 06, 2019

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, , ,
1Department of Respiratory Medicine, Shanghai Sixth People’s Hospital, School of Medicine,Shanghai Jiao Tong University, 2Ultrafast Laser Laboratory, College of Precision Instrument and Optoelectronics Engineering,Tianjin University, 3School of Biomedical Engineering,Shanghai Jiao Tong University

Chapters

  • 00:04Title
  • 01:04Setting Up the Photostimulation System
  • 01:48Preparing for Activation of ERK2 by Photostimulation
  • 02:47Delivering Femtosecond Laser Stimulation into Target Cells Using Stim-A Mode
  • 04:24Delivering Femtosecond Laser Stimulation into Target Cells Using Stim-B Mode
  • 05:53Activation of Mitoflashes and Other Mitochondrial Events by Photostimulation
  • 06:55Delivering Femtosecond Laser Stimulation into the Target Mitochondrion Using Stim-A Mode
  • 08:32Results: Activation of ERK Signaling or Mitochondrial Events in Target Cells
  • 10:26Conclusion

Summary

Automatic Translation

Automatic Translation

Tightly-focused femtosecond laser can deliver precise stimulation to cells by being coupled into a confocal microscopy enabling the real-time observation and photostimulation. The photostimulation can activate cell molecular events including ERK signaling pathway and mitochondrial flashes of reactive oxygen species.

Tags

Keywords: Femtosecond LaserOptical ManipulationCellular SignalingERKMitochondrial EventsConfocal MicroscopySingle-cellSubcellularFluorescence MicroscopyHela CellsTransfectionReal-time MonitoringPhoto-bleachingPhoto-damage

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