Inhibitory Role of Inducible cAMP Early Repressor (ICER) in Methamphetamine-Induced Locomotor Sensitization
2011

ICER's Role in Methamphetamine Effects

Sample size: 29 publication 10 minutes Evidence: moderate

Author Information

Author(s): Han Wenhua, Takamatsu Yukio, Yamamoto Hideko, Kasai Shinya, Endo Shogo, Shirao Tomoaki, Kojima Nobuhiko, Ikeda Kazutaka

Primary Institution: Tokyo Metropolitan Institute of Medical Science

Hypothesis

The study investigates the role of ICER in the effects of methamphetamine (METH).

Conclusion

ICER plays an inhibitory role in METH-induced locomotor sensitization.

Supporting Evidence

  • ICER I-overexpressing mice showed significantly decreased locomotor activity after methamphetamine injection compared to wildtype mice.
  • ICER knockout mice displayed a tendency toward higher locomotor activity compared to wildtype mice.
  • ICER overexpression abolished the increase in CREB expression induced by methamphetamine.

Takeaway

ICER is a protein that helps control how mice react to methamphetamine, and when it is overexpressed, the mice show less hyperactivity.

Methodology

The study used wildtype, ICER knockout, and ICER I-overexpressing mice to assess locomotor activity after methamphetamine administration.

Limitations

The study primarily focused on male mice, which may limit the generalizability of the findings.

Participant Demographics

The study involved male mice of different genetic backgrounds.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0021637

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