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June 1, 1998Journal of Neurochemistry

Calmodulin mediates calcium-driven ERK activation following membrane depolarization independently of Trk A and EGFR.

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Why the study?

The mediators responsible for ERK activation resulting from increased intracellular Ca2+ due to membrane depolarization in PC12 cells were not fully understood.

Population

PC12 cell line

Comparison

Membrane depolarization with or without calmodulin inhibitor W13

Design

Preclinical experimental study

Key result

Calmodulin mediates ERK activation induced by increases in intracellular Ca2+ concentration in PC12 cells following membrane depolarization, independent of Trk A and EGFR activation.

Authors

JEJoaquim EgeaCECarme EspinetJCJoan X. Comella

Discussion

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Overview

Calmodulin-ERK signaling in depolarized PC12 cells is hypothesis-generating; leaves open relevance to cardiovascular models or therapies.

Structured PICO

P
Population
PC12 cell line
I
Intervention
Membrane depolarization (high K+ treatment) with or without W13 (calmodulin inhibitor)
O
Outcome
ERK activationsurrogate

In PC12 cells, calmodulin mediates ERK activation induced by membrane depolarization and subsequent calcium influx, independent of Trk A and EGFR activation.

Cite This Study

Egea et al. (1998) studied this question. Membrane depolarization and W13 (calmodulin inhibitor) was evaluated on ERK activation. Calmodulin mediates ERK activation induced by increases in intracellular Ca2+ concentration in PC12 cells following membrane depolarization, independent of Trk A and EGFR activation.

synapsesocial.com/papers/6aa9e02af8c08cbefbf6a7cahttps://doi.org/10.1046/j.1471-4159.1998.70062554.x
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Calmodulin‐ and protein phosphorylation‐independent release of catecholamines from PC‐12 cells1988 · 20 citations
  2. 2Ca2+/Calmodulin-dependent Protein Kinase II Is an Essential Mediator in the Coordinated Regulation of Electrocyte Ca2+-ATPase by Calmodulin and Protein Kinase A2005 · 15 citations
  3. 3ERK5 Phosphorylates Kv4.2 and Inhibits Inactivation of the A-Type Current in PC12 Cells2018 · 8 citations
  4. 4Calmodulin inhibits the protein kinase C-catalysed phosphorylation of an endogenous protein in A10 smooth-muscle cells1991 · 18 citations
  5. 5Mitogenic modulation of Ca <sup>2+</sup> ‐activated K <sup>+</sup> channels in proliferating A7r5 vascular smooth muscle cells2006 · 48 citations