Related Experiment Video
Updated: Jun 3, 2026

A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
Published on: August 18, 2015
Balancing life and death in the ischemic brain: SIK and TORC weigh in
Eduardo F Gallo1, Costantino Iadecola
1Division of Neurobiology, Department of Neurology and Neuroscience, Weill Cornell Medical College, New York, NY.
Abstract:
Activation of NMDA receptors during cerebral ischemia triggers signaling pathways that promote both neuronal death and survival. In this issue of Neuron, Sasaki et al. present evidence for a new endogenous survival pathway involving the kinase SIK2 and the CREB coactivator TORC1. The powerful neuroprotection conferred by this pathway has considerable translational potential for stroke therapy.
Insights
A novel survival pathway involving SIK2 kinase and TORC1 coactivator offers potent neuroprotection against ischemic brain injury. This discovery holds significant promise for developing new stroke therapies.
Area of Science:
- Neuroscience
- Molecular Biology
- Cell Signaling
Background:
- NMDA receptor activation during cerebral ischemia initiates complex signaling cascades.
- These pathways can lead to either neuronal death or survival, influencing stroke outcomes.
Purpose of the Study:
- To investigate novel endogenous pathways that promote neuronal survival following ischemic events.
- To identify molecular targets for therapeutic intervention in stroke.
Main Methods:
- The study by Sasaki et al. utilized molecular and cellular techniques to explore signaling pathways.
- Investigated the role of the kinase SIK2 and the CREB coactivator TORC1 in neuronal survival.
Main Results:
- Identified a new endogenous neuroprotective pathway mediated by SIK2 and TORC1.
- Demonstrated that this pathway confers powerful protection to neurons during cerebral ischemia.
Conclusions:
- The SIK2-TORC1 pathway represents a critical endogenous mechanism for neuronal survival after stroke.
- This pathway has significant translational potential for the development of novel stroke therapies.
Related Concept Videos
Ischemic Stroke ll: Pathophysiology
Ischemic Stroke l: Introduction
Hemorrhagic Stroke l: Introduction
Regulation of Stroke Volume
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
Hemorrhagic Stroke ll: Pathophysiology
Transient Ischemic Attack l: Introduction

