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Area of Science:

  • Cell Biology
  • Biotechnology
  • Microscopy

Background:

  • Mitochondria are vital organelles in eukaryotic cells.
  • Manipulating organelle structures in live cells is challenging.

Purpose of the Study:

  • To develop a method for precise organelle manipulation in live cells.
  • To investigate the transplantation and integration of mitochondria.

Main Methods:

  • Utilized FluidFM technology combining AFM, optical microscopy, and nanofluidics.
  • Developed specialized probes for minimally invasive organelle extraction and injection.
  • Transplanted mitochondria between primary keratinocytes.

Main Results:

  • Successfully extracted and transplanted intact mitochondria with subcellular resolution.
  • Transplanted mitochondria fused with the host cell's mitochondrial network within 20 minutes.
  • Donor mitochondrial DNA replicated in recipient cells over generations without selection.

Conclusions:

  • The FluidFM-based approach enables precise organelle manipulation for biological studies.
  • This technology has potential applications in therapy, mechanobiology, and synthetic biology.
  • Demonstrated successful rescue of drug-impaired mitochondria and long-term integration.