D-Glutamate Production by Stressed Escherichia Coli Provides a Clue for the Induction Mechanism of the ALS Disease

Author:

Monselise Edna Ben Izhak1,Vyazmensky Maria2,Scherf Tali3,Batushansky Albert2,Fishov Itzhak4

Affiliation:

1. Bergman Campus, Ben-Gurion University of the Negev, Beer-Sheva

2. BGU

3. Weizmann Institute of Science

4. Ben-Gurion University of the Negev

Abstract

Abstract

In the search for the origin of Amyotrophic Lateral Sclerosis disease (ALS(, we hypothesized earlier (Monselise, 2019) that D-amino acids produced by stressed microbiome may serve as inducers of the disease development. Many examples of D-amino acid accumulation under various stress conditions were demonstrated in prokaryotic and eukaryotic cells. In this work, wild-type Escherichia coli, members of the digestive system, were subjected to carbon and nitrogen starvation stress. Using NMR and LC-MS techniques, we found for the first time that D-glutamate accumulated in the stressed bacteria but not in control cells. These results together with the existing knowledge, allow us to suggest a new insight into the pathway of ALS development: D-glutamate, produced by the stressed microbiome, induces neurobiochemical miscommunication setting on C1q of the complement system. Proving this insight may have great importance in preventive medicine of such MND modern-age diseases as ALS, Alzheimer, and Parkinson.

Publisher

Springer Science and Business Media LLC

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