Potential role of tanycyte-derived neurogenesis in Alzheimer's disease  

作　　者：Guibo Qi Han Tang Jianian Hu Siying Kang Song Qin 

机构地区：[1]Department of Anatomy,Histology,and Embryology,School of Basic Medical Sciences,Fudan University,Shanghai,China [2]State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science,Fudan University,Shanghai,China

出　　处：《Neural Regeneration Research》2025年第6期1599-1612,共14页中国神经再生研究（英文版）

基　　金：supported by the National Natural Science Foundation of China,Nos.31871477,32170971 (both to SQ);the Qing-Feng Scholar Research Foundation of Shanghai Medical College,Fudan University,No.QF2212 (to HT)。

摘　　要：Tanycytes, specialized ependymal cells located in the hypothalamus, play a crucial role in the generation of new neurons that contribute to the neural circuits responsible for regulating the systemic energy balance. The precise coordination of the gene networks controlling neurogenesis in naive and mature tanycytes is essential for maintaining homeostasis in adulthood. However, our understanding of the molecular mechanisms and signaling pathways that govern the proliferation and differentiation of tanycytes into neurons remains limited. This article aims to review the recent advancements in research into the mechanisms and functions of tanycyte-derived neurogenesis. Studies employing lineage-tracing techniques have revealed that the neurogenesis specifically originating from tanycytes in the hypothalamus has a compensatory role in neuronal loss and helps maintain energy homeostasis during metabolic diseases. Intriguingly,metabolic disorders are considered early biomarkers of Alzheimer's disease. Furthermore,the neurogenic potential of tanycytes and the state of newborn neurons derived from tanycytes heavily depend on the maintenance of mild microenvironments, which may be disrupted in Alzheimer's disease due to the impaired blood–brain barrier function.However, the specific alterations and regulatory mechanisms governing tanycyte-derived neurogenesis in Alzheimer's disease remain unclear. Accumulating evidence suggests that tanycyte-derived neurogenesis might be impaired in Alzheimer's disease, exacerbating neurodegeneration. Confirming this hypothesis, however, poses a challenge because of the lack of long-term tracing and nucleus-specific analyses of newborn neurons in the hypothalamus of patients with Alzheimer's disease. Further research into the molecular mechanisms underlying tanycyte-derived neurogenesis holds promise for identifying small molecules capable of restoring tanycyte proliferation in neurodegenerative diseases. This line of investigation could provide valuable insights into potential therapeu

关 键 词：Alzheimer's disease blood–brain barrier ependymoglial cells HYPOTHALAMUS metabolic diseases neural stem cells NEUROGENESIS neuroinflammatory diseases NEURONS TANYCYTE 

分 类 号：R749.16[医药卫生—神经病学与精神病学]