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Myotubularin-related protein protects against neuronal degeneration mediated by oxidative stress or infection

Supender Kaur1, Yu Sang1, Alejandro Aballay1

  • 1Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon, USA.

The Journal of Biological Chemistry
|February 1, 2022
PubMed

Insights

Myotubularin-related protein 10 (MTM-10) protects neurons from infection-induced damage. This study reveals MTM-10

Area of Science:

  • Neuroscience
  • Molecular Biology
  • Infectious Disease

Background:

  • Microbial infections are implicated in neurodegenerative diseases, but mechanisms are unclear.
  • Neuroinflammation and oxidative stress contribute to neuronal damage in neurodegeneration.
  • Understanding protective mechanisms against infection-associated neurodegeneration is crucial.

Purpose of the Study:

  • To identify genes protecting against infection-associated neurodegeneration.
  • To elucidate the role of myotubularin-related protein 10 (MTM-10) in neuronal protection.
  • To investigate MTM-10's function in preserving neuronal morphology and chemosensation.

Main Methods:

  • Genetic screening in Caenorhabditis elegans to identify protective genes.
  • Validation of mtm-10 function in protecting dendrites from oxidative stress and Pseudomonas aeruginosa infection.
  • Analysis of MTM-10 expression in AWC neurons and its cell-autonomous role.

Main Results:

  • The gene mtm-10 was identified as crucial for protection against infection-associated neurodegeneration.
  • MTM-10 protects C. elegans dendrites from degeneration induced by oxidative stress or P. aeruginosa infection.
  • mtm-10 functions cell-autonomously in AWC neurons to preserve chemosensation post-infection.

Conclusions:

  • Myotubularin-related protein 10 plays a vital role in protecting neuronal dendrites.
  • MTM-10 safeguards dendrite morphology and function against oxidative stress and microbial infection.
  • This study highlights MTM-10 as a key factor in combating infection-induced neurodegeneration.
Keywords:
Caenorhabditis elegansPseudomonas aeruginosadendrite degenerationinfectionmyotubularinpathogens

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