Published in:
Open Access
01-12-2005 | Research
Genetic alteration of anxiety and stress-like behavior in mice lacking CaMKIV
Authors:
Fanny WF Shum, Shanelle W Ko, Yong-Seok Lee, Bong-Kiun Kaang, Min Zhuo
Published in:
Molecular Pain
|
Issue 1/2005
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Abstract
Calcium-calmodulin-dependent protein kinase IV (CaMKIV) phosphorylates the major transcription factor cyclic AMP-response element binding protein (CREB), which plays a role in emotional behavior. Here, CaMKIV knockout mice (CaMKIV-/-) were tested in a battery of stress and anxiety-related behavioral tests, to determine if CaMKIV plays a role in emotional behavior. CaMKIV-/-exhibited a decrease in anxiety-like behavior in both the elevated plus maze and dark-light emergence tests when compared to wild-type mice. Both the acoustic startle response and prepulse inhibition of startle were decreased with the deletion of CaMKIV. In addition, CaMKIV-/- mice displayed a lack of stress-induced analgesia following restraint or cold swim stress. Our results demonstrate a key role for CaMKIV in anxiety and stress-related behavior.