Abstract
Fyn tyrosine kinase is highly expressed in the limbic system and mice lacking Fyn tyrosine kinase showed increased fearfulness in a variety of tests for anxiety-related behaviors. To investigate the possible role of Fyn tyrosine kinase in aggression, we assessed the aggressive behaviors of the mice lacking the Fyn tyrosine kinase using the resident-intruder and restraint-induced target biting paradigms. The percentage of Fyn-deficient mice that attacked an inanimate target in a restraint tube was higher than that of the control mice. On the contrary, in the resident-intruder paradigm, the percentage of Fyn-deficient mice that attacked the intruder was lower and the Fyn-deficient mice showed a longer latency to attack an intruder. These results suggest a distinct role of Fyn tyrosine kinase in enhancing the offensive aggression and decreasing the defensive aggression. A possible influence of anxiety-phenotype of the Fyn-deficient mice on their abnormal aggressive behavior was discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 51-56 |
| Number of pages | 6 |
| Journal | Behavioural Brain Research |
| Volume | 122 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 05-04-2001 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Behavioral Neuroscience
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Differential effect of Fyn tyrosine kinase deletion on offensive and defensive aggression. / Miyakawa, Tsuyoshi; Yagi, Takeshi; Takao, Keizo; Niki, Hiroaki.
In: Behavioural Brain Research, Vol. 122, No. 1, 05.04.2001, p. 51-56.Research output: Contribution to journal › Article
TY - JOUR
T1 - Differential effect of Fyn tyrosine kinase deletion on offensive and defensive aggression
AU - Miyakawa, Tsuyoshi
AU - Yagi, Takeshi
AU - Takao, Keizo
AU - Niki, Hiroaki
PY - 2001/4/5
Y1 - 2001/4/5
N2 - Fyn tyrosine kinase is highly expressed in the limbic system and mice lacking Fyn tyrosine kinase showed increased fearfulness in a variety of tests for anxiety-related behaviors. To investigate the possible role of Fyn tyrosine kinase in aggression, we assessed the aggressive behaviors of the mice lacking the Fyn tyrosine kinase using the resident-intruder and restraint-induced target biting paradigms. The percentage of Fyn-deficient mice that attacked an inanimate target in a restraint tube was higher than that of the control mice. On the contrary, in the resident-intruder paradigm, the percentage of Fyn-deficient mice that attacked the intruder was lower and the Fyn-deficient mice showed a longer latency to attack an intruder. These results suggest a distinct role of Fyn tyrosine kinase in enhancing the offensive aggression and decreasing the defensive aggression. A possible influence of anxiety-phenotype of the Fyn-deficient mice on their abnormal aggressive behavior was discussed.
AB - Fyn tyrosine kinase is highly expressed in the limbic system and mice lacking Fyn tyrosine kinase showed increased fearfulness in a variety of tests for anxiety-related behaviors. To investigate the possible role of Fyn tyrosine kinase in aggression, we assessed the aggressive behaviors of the mice lacking the Fyn tyrosine kinase using the resident-intruder and restraint-induced target biting paradigms. The percentage of Fyn-deficient mice that attacked an inanimate target in a restraint tube was higher than that of the control mice. On the contrary, in the resident-intruder paradigm, the percentage of Fyn-deficient mice that attacked the intruder was lower and the Fyn-deficient mice showed a longer latency to attack an intruder. These results suggest a distinct role of Fyn tyrosine kinase in enhancing the offensive aggression and decreasing the defensive aggression. A possible influence of anxiety-phenotype of the Fyn-deficient mice on their abnormal aggressive behavior was discussed.
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U2 - 10.1016/S0166-4328(01)00171-1
DO - 10.1016/S0166-4328(01)00171-1
M3 - Article
VL - 122
SP - 51
EP - 56
JO - Behavioural Brain Research
JF - Behavioural Brain Research
SN - 0166-4328
IS - 1
ER -