Related Experiment Video

Updated: Jul 2, 2026

Clinical Testing and Spinal Cord Removal in a Mouse Model for Amyotrophic Lateral Sclerosis (ALS)
12:35

Clinical Testing and Spinal Cord Removal in a Mouse Model for Amyotrophic Lateral Sclerosis (ALS)

Published on: March 17, 2012

[Neuronal death in amyotrofic lateral sclerosis]

J Matias-Guiu1, R García-Ramos, L Galán

  • 1Servicio de Neurología, Hospital Clínico San Carlos, Facultad de Medicina, Universidad Complutense, Madrid. inc.hcsc@salud@madrid.org

Neurologia (Barcelona, Spain)
|September 5, 2008
PubMed
Abstract

Insights

The mechanisms of neuronal death in sporadic ALS differ from transgenic models. Minocycline

Area of Science:

  • Neuroscience
  • Cell Biology
  • Biochemistry

Context:

  • Sporadic amyotrophic lateral sclerosis (SALS) presents distinct neuronal death pathways compared to transgenic mouse models (TgALS).
  • Oxidative stress mechanisms and apoptosis pathways show significant differences between SALS and TgALS.

Purpose:

  • To investigate the differing mechanisms of neuronal apoptosis in SALS versus TgALS.
  • To understand why minocycline, effective in TgALS, may fail in SALS.

Summary:

  • TgALS apoptosis originates from mitochondria, involving caspase 9, Bid, and cytochrome C.
  • SALS apoptosis may involve the FAS pathway, activated by cathepsin B or TNF-alpha via microglial activation, leading to caspase 8.
  • Minocycline's efficacy in TgALS is linked to its reduction of cytochrome C release and intrinsic pathway caspases, a mechanism not directly applicable to the proposed SALS FAS pathway.

Impact:

  • Clarifying SALS cell death mechanisms is crucial for developing targeted therapies.
  • This understanding will enable the identification of drugs effective for SALS, differentiating them from those only beneficial in TgALS models.

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