From the black widow spider to human behavior: Latrophilins, a relatively unknown class of G protein-coupled receptors, are implicated in psychiatric disorders.

Abstract

The findings of a recent study associate LPHN3, a member of the latrophilin family, with an increased risk of developing attention deficit/hyperactivity disorder (ADHD), the most common psychiatric disorder in childhood and adolescence. Latrophilins comprise a new family of G protein-coupled receptors of unknown native physiological function that mediate the neurotoxic effects of α-latrotoxin, a potent toxin found in black widow spider venom. This receptor-toxin interaction has helped to elucidate the mechanistic aspects of neurotransmitter and hormone release in vertebrates. Such unprecedented discovery points to a new direction in the assessment of ADHD and suggest that further study of this receptor family may provide novel insights into the etiology and treatment of ADHD and other related psychiatric conditions.

• Authors: Ariel F Martinez, Maximilian Muenke, Mauricio Arcos-Burgos
• Journal: American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics (Am J Med Genet B Neuropsychiatr Genet) Vol. 156B Issue 1 Pg. 1-10 (Jan 2011) ISSN: 1552-485X [Electronic] United States
• PMID: 21184579 (Publication Type: Journal Article)
• Copyright: Copyright © 2010 Wiley-Liss, Inc.

Chemical References

• Receptors, G-Protein-Coupled
• Receptors, Peptide
• Spider Venoms
• alpha-latrotoxin receptor
• black widow spider venom

Topics

• Amino Acid Sequence
• Animals
• Humans
• Intracellular Space (metabolism)
• Mental Disorders (metabolism)
• Molecular Sequence Data
• Receptors, G-Protein-Coupled (metabolism)
• Receptors, Peptide (chemistry, metabolism)
• Signal Transduction
• Spider Venoms (metabolism)