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<p>Trace amine-associated receptors (TAARs) are a class of G protein-coupled receptors that respond to metabolic derivatives of the amino acids such as phenylalanine, tyrosine, and tryptophan. Trace amines derive their name from the fact that their concentration in the periphery as well as in the central nervous system (CNS) is in trace amounts compared to the parent compound or other monoamine neurotransmitters such as dopamine, norepinephrine, or serotonin. Genetic, pharmacological and neurobiological studies have linked TAAR1, the most studied receptor of the TAARs to the pathophysiology of schizophrenia (SCZ), the current treatments of which are limited. Recent developments in the field implicate glial-microbiota interactions in SCZ pathophysiology. TAAR1 interactions with the glial cells and the gut microbiota (GM) makes it a suitable candidate as a novel target in SCZ. In this review, following brief descriptions of the known neurobiological substrates of SCZ, we delve into the specific roles of glial cells, including analysis of the public transcriptomic data, their interaction with GM and the potential integrator role of TAAR1 in glial-GM signaling relevant to SCZ. Finally, we suggest how TAAR1 manipulation may be exploited in this devastating neuropsychiatric disorder.</p>

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Role of Glial Trace Amine Associated Receptor 1 (TAAR1) and Microbiota in Schizophrenia

  • 期刊论文

  • 发表日期：

    2025年8月21日

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  • Vassiliy Tsytsarev,
  • Anastasia N. Vaganova,
  • Anna Volnova,
  • Zoia Fesenko,
  • Bruk Getachew,
  • Raul R. Gainetdinov,
  • Yousef Tizabi

摘要

Trace amine-associated receptors (TAARs) are a class of G protein-coupled receptors that respond to metabolic derivatives of the amino acids such as phenylalanine, tyrosine, and tryptophan. Trace amines derive their name from the fact that their concentration in the periphery as well as in the central nervous system (CNS) is in trace amounts compared to the parent compound or other monoamine neurotransmitters such as dopamine, norepinephrine, or serotonin. Genetic, pharmacological and neurobiological studies have linked TAAR1, the most studied receptor of the TAARs to the pathophysiology of schizophrenia (SCZ), the current treatments of which are limited. Recent developments in the field implicate glial-microbiota interactions in SCZ pathophysiology. TAAR1 interactions with the glial cells and the gut microbiota (GM) makes it a suitable candidate as a novel target in SCZ. In this review, following brief descriptions of the known neurobiological substrates of SCZ, we delve into the specific roles of glial cells, including analysis of the public transcriptomic data, their interaction with GM and the potential integrator role of TAAR1 in glial-GM signaling relevant to SCZ. Finally, we suggest how TAAR1 manipulation may be exploited in this devastating neuropsychiatric disorder.