Titre :

Creatine biosynthesis and transport in health and disease

Auteur(s) :

Joncquel, Marie [Auteur]
Maladies RAres du DEveloppement embryonnaire et du MEtabolisme : du Phénotype au Génotype et à la Fonction - ULR 7364 [RADEME]
Voicu, Pia-Manuela [Auteur]
Fontaine, Monique [Auteur]
Maladies RAres du DÉveloppement embryonnaire et du Métabolisme : du phénotype au génotype et à la Fonction (RADEME) - EA 7364
Dessein, Anne-Frédérique [Auteur]
Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer (JPArc) - U1172
Porchet, Nicole [Auteur]
Centre Hospitalier Régional Universitaire [CHU Lille] [CHRU Lille]
Mention-Mulliez, Karine [Auteur]
Maladies RAres du DEveloppement embryonnaire et du MEtabolisme : du Phénotype au Génotype et à la Fonction - ULR 7364 [RADEME]
Dobbelaere, Dries [Auteur]
Maladies RAres du DEveloppement embryonnaire et du MEtabolisme : du Phénotype au Génotype et à la Fonction - ULR 7364 [RADEME]
Soto-Ares, Gustavo [Auteur]
Hôpital Roger Salengro [Lille]
Maladies RAres du DEveloppement embryonnaire et du MEtabolisme : du Phénotype au Génotype et à la Fonction - ULR 7364 [RADEME]
Cheillan, David [Auteur]
Hospices Civils de Lyon [HCL]
Vamecq, Joseph [Auteur]
Maladies RAres du DEveloppement embryonnaire et du MEtabolisme : du Phénotype au Génotype et à la Fonction - ULR 7364 [RADEME]

Titre de la revue :

Biochimie

Nom court de la revue :

Biochimie

Numéro :

119

Pagination :

146-165

Éditeur :

Elsevier

Date de publication :

2016-03-15

ISSN :

0300-9084

Mot(s)-clé(s) en anglais :

Creatine
AGAT
GAMT
SLC6A8
CRTR
AMP activated protein kinase
Secondary creatine disorders

Discipline(s) HAL :

Sciences du Vivant [q-bio]

Résumé en anglais : [en]

Creatine is physiologically provided equally by diet and by endogenous synthesis from arginine and glycine with successive involvements of arginine glycine amidinotransferase [AGAT] and guanidinoacetate methyl transferase ...
Lire la suite >Creatine is physiologically provided equally by diet and by endogenous synthesis from arginine and glycine with successive involvements of arginine glycine amidinotransferase [AGAT] and guanidinoacetate methyl transferase [GAMT]. A specific plasma membrane transporter, creatine transporter [CRTR] (SLC6A8), further enables cells to incorporate creatine and through uptake of its precursor, guanidinoacetate, also directly contributes to creatine biosynthesis. Breakthrough in the role of creatine has arisen from studies on creatine deficiency disorders. Primary creatine disorders are inherited as autosomal recessive (mutations affecting GATM [for glycine-amidinotransferase, mitochondrial]) and GAMT genes) or X-linked (SLC6A8 gene) traits. They have highlighted the role of creatine in brain functions altered in patients (global developmental delay, intellectual disability, behavioral disorders). Creatine modulates GABAergic and glutamatergic cerebral pathways, presynaptic CRTR (SLC6A8) ensuring re-uptake of synaptic creatine. Secondary creatine disorders, addressing other genes, have stressed the extraordinary imbrication of creatine metabolism with many other cellular pathways. This high dependence on multiple pathways supports creatine as a cellular sensor, to cell methylation and energy status. Creatine biosynthesis consumes 40% of methyl groups produced as S-adenosylmethionine, and creatine uptake is controlled by AMP activated protein kinase, a ubiquitous sensor of energy depletion. Today, creatine is considered as a potential sensor of cell methylation and energy status, a neurotransmitter influencing key (GABAergic and glutamatergic) CNS neurotransmission, therapeutic agent with anaplerotic properties (towards creatine kinases [creatine–creatine phosphate cycle] and creatine neurotransmission), energetic and antioxidant compound (benefits in degenerative diseases through protection against energy depletion and oxidant species) with osmolyte behavior (retention of water by muscle). This review encompasses all these aspects by providing an illustrated metabolic account for brain and body creatine in health and disease, an algorithm to diagnose metabolic and gene bases of primary and secondary creatine deficiencies, and a metabolic exploration by 1H-MRS assessment of cerebral creatine levels and response to therapeutic measures.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CHU Lille

Collections :

• Maladies Rares du Développement : Génétique, Régulation et Protéomique (RADEME) - ULR 7364

Date de dépôt :

2023-06-05T07:51:33Z
2024-06-12T09:10:52Z