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Related Experiment Video

Updated: Jun 1, 2025

Generation of Human Brain Organoids for Mitochondrial Disease Modeling
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Optogenetic control of mitochondrial aggregation and function.

Luhao Zhang1,2,3, Xuechun Liu2, Min Zhu2,4

  • 1Department of Endocrinology, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Children's Health, Hangzhou, China.

Frontiers in Bioengineering and Biotechnology
|January 21, 2025
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel optogenetic system to control mitochondrial dynamics. This method induces mitochondrial aggregation, alleviating cell dysfunction and offering potential therapies for mitochondrial diseases.

Keywords:
ATPaggregationimagingmitochondriaoptogenetics

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Area of Science:

  • Cell Biology
  • Mitochondrial Dynamics
  • Optogenetics

Background:

  • Mitochondrial fission and fusion are crucial for cellular homeostasis.
  • Dysfunctional mitochondrial dynamics, including fragmentation, are linked to oxidative stress and diseases like cancer and neurodegeneration.
  • Targeting mitochondrial aggregation and fusion presents a potential therapeutic strategy.

Purpose of the Study:

  • To develop and validate an optogenetic system, Opto-MitoA, for inducing mitochondrial aggregation.
  • To investigate the potential of Opto-MitoA in mitigating cellular dysfunction caused by mitochondrial abnormalities.
  • To establish a novel method for regulating mitochondrial dynamics for therapeutic applications.

Main Methods:

  • Development of the Opto-MitoA system using the CRY2clust/CIBN light-sensitive module.
  • Utilizing blue light illumination to trigger CRY2clust translocation to mitochondria and induce aggregation via homo-oligomerization and hetero-dimerization.
  • Assessing the system's efficacy by measuring its impact on niclosamide-induced cellular dysfunction in ATP production.

Main Results:

  • The Opto-MitoA system successfully induced mitochondrial aggregation upon blue light exposure.
  • Opto-MitoA-induced mitochondrial aggregation effectively alleviated niclosamide-induced cell dysfunction in ATP production.
  • Demonstrated the ability to control mitochondrial dynamics using an optogenetic approach.

Conclusions:

  • The developed Opto-MitoA system provides a novel optogenetic strategy for regulating mitochondrial dynamics.
  • This approach shows promise in alleviating cellular dysfunction associated with mitochondrial abnormalities.
  • Opto-MitoA offers a potential therapeutic avenue for treating mitochondrial-related diseases.