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Information Processing in Affective Disorders: Did an Ancient Peptide Regulating Intercellular Metabolism Become Co-Opted for Noxious Stress Sensing?
BioEssays ( IF 3.2 ) Pub Date : 2020-08-07 , DOI: 10.1002/bies.202000039
David A Lovejoy 1 , David W Hogg 1
Affiliation  

Affective disorders arise in stressful situations from aberrant sensory information integration that affects energetic nutrient (i.e., glucose) utilization to the cognitive centers of the brain. Because energy flow is mediated by molecular signals and receptors that evolved before the first complex brains, the phylogenetically oldest signaling systems are essential in the etiology of affective disorders. The corticotropin‐releasing factor (CRF) peptide subfamily is a phylogenetically old metazoan peptide family and is pivotal for regulating organismal energy response associated with stress. Highly conserved, both the CRF peptide family and its receptors possess a structural relationship to the teneurins, and their receptors, latrophilins, respectively. The CRF homologous region of teneurin is defined as the “teneurin C‐terminal associated peptide” (TCAP) and antagonizes CRF action, regulates mitochondrial energy production, and is anxiolytic in vivo. Here, it is postulated that TCAP represents an ancient peptide that mediates intercellular information transfer of stressful and noxious events by regulating energy utilization among neurons.

中文翻译:

情感障碍中的信息处理:调节细胞间代谢的古老肽是否成为有害压力感知的共同选择?

情感障碍出现在压力情况下,异常感觉信息整合会影响大脑认知中枢的能量营养(即葡萄糖)利用。因为能量流是由在第一个复杂大脑之前进化的分子信号和受体介导的,所以系统发育最古老的信号系统在情感障碍的病因学中是必不可少的。促肾上腺皮质激素释放因子 (CRF) 肽亚家族是一个系统发育古老的后生动物肽家族,对于调节与压力相关的生物体能量反应至关重要。CRF 肽家族及其受体均高度保守,分别与teneurins 及其受体latrophilins 具有结构关系。Teneurin 的 CRF 同源区被定义为“teneurin C 端相关肽”(TCAP),它拮抗 CRF 的作用,调节线粒体能量产生,并且在体内具有抗焦虑作用。在这里,假设 TCAP 代表了一种古老的肽,它通过调节神经元之间的能量利用来介导压力和有害事件的细胞间信息传递。
更新日期:2020-08-26
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