中国神经再生研究(英文版) ›› 2026, Vol. 21 ›› Issue (3): 1114-1115.doi: 10.4103/NRR.NRR-D-25-00433

• 观点:神经损伤修复保护与再生 • 上一篇    下一篇

内质网: 树突棘结构增强的调节者

  

  • 出版日期:2026-03-15 发布日期:2025-07-04

Endoplasmic reticulum: Regulator of structural potentiation of dendritic spines

Philip J. Dittmer* , Mark L. Dell’Acqua   

  1. Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
  • Online:2026-03-15 Published:2025-07-04
  • Contact: Philip J. Dittmer, PhD, philip.dittmer@cuanschutz.edu.
  • Supported by:
    This work was supported by AHA Career Development Award 938683 (to PJD) and NIH grant R01MH123700 (to MLD). Presentation at a meeting: FASEB The Ion Channel Regulation Conference, Nova Scotia, Canada; August 14–19, 2022.

摘要: https://orcid.org/0000-0002-5681-1502 (Philip J. Dittmer)

Abstract: Since the first electron micrograph of “lace-like structures” over 75 years ago, the endoplasmic reticulum (ER) is now viewed as a highly dynamic, constantly remodeling, continuous network of tubules and cisternae that plays an important role in a broad range of cellular activities from calcium regulation to protein synthesis and trafficking. In neurons, the ER extends from the soma through the axon to presynaptic terminals, and throughout the dendritic arbor into as many as half of all postsynaptic dendritic spines at any given time (Falahati et al., 2022). Dendritic spines are small protrusions decorating the branches of the dendritic arbor which receive most of the excitatory synaptic inputs in the central nervous system. Spines compartmentalize the postsynaptic mechanical and chemical responses tailored to the specific input that they receive. In addition to the wide range of shapes and sizes, spines also vary in their molecular and organellar composition, including ER. Recent findings reveal that neurons effectively exploit spine heterogeneity, particularly ER content to differentially tune spine function and structure during synaptic plasticity (Dittmer et al., 2024).