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Calcium channelopathies and Alzheimer's disease: insight into therapeutic success and failures
Shreaya Chakroborty1, Grace E Stutzmann1
1Department of Neuroscience, Rosalind Franklin University of Medicine and Science, The Chicago Medical School, 3333 Green Bay Road, North Chicago, IL 60064, USA.
Abstract:
Calcium ions are versatile and universal biological signaling factors that regulate numerous cellular processes ranging from cell fertilization, to neuronal plasticity that underlies learning and memory, to cell death. For these functions to be properly executed, calcium signaling requires precise regulation, and failure of this regulation may tip the scales from a signal for life to a signal for death. Disruptions in calcium channel function can generate complex multi-system disorders collectively referred to as "calciumopathies" that can target essentially any cell type or organ. In this review, we focus on the multifaceted involvement of calcium signaling in the pathophysiology of Alzheimer's disease (AD), and summarize the various therapeutic options currently available to combat this disease. Detailing the series of disappointing AD clinical trial results on cognitive outcomes, we emphasize the urgency to design alternative therapeutic strategies if synaptic and memory functions are to be preserved. One such approach is to target early calcium channelopathies centrally linked to AD pathogenesis.
Insights
Calcium signaling disruptions, termed calciumopathies, are implicated in Alzheimer's disease (AD) pathogenesis. Targeting early calcium channel issues offers a promising therapeutic strategy for preserving memory and synaptic function in AD.
Area of Science:
- Neuroscience
- Cell Biology
- Biochemistry
Background:
- Calcium ions (Ca2+) are crucial intracellular signals regulating diverse cellular functions.
- Precise calcium signaling is vital for cellular health; dysregulation can lead to cell death.
- Impaired calcium channel function causes "calciumopathies," multi-system disorders affecting various cell types.
Purpose of the Study:
- To review the role of calcium signaling in Alzheimer's disease (AD) pathophysiology.
- To summarize current therapeutic strategies for AD.
- To highlight the potential of targeting calcium channelopathies as an alternative therapeutic approach for AD.
Main Methods:
- Literature review focusing on calcium signaling in AD.
- Analysis of existing therapeutic options and clinical trial outcomes for AD.
- Discussion of calcium channelopathies in the context of AD pathogenesis.
Main Results:
- Calcium signaling plays a multifaceted role in the pathophysiology of Alzheimer's disease.
- Current AD therapies have shown disappointing results in clinical trials for cognitive outcomes.
- Early calcium channelopathies are centrally linked to AD pathogenesis.
Conclusions:
- Disruptions in calcium signaling are a significant factor in AD.
- There is an urgent need for novel therapeutic strategies beyond current approaches.
- Targeting early calcium channelopathies presents a promising avenue for preserving synaptic and memory functions in AD.
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