Acute Footshock Stress Induces Time-Dependent Modifications of AMPANMDA Protein Expression and AMPA Phosphorylation

Joint Authors

Popoli, Maurizio
Racagni, Giorgio
Musazzi, Laura
Bonini, Daniela
Mora, Cristina
Tornese, Paolo
Sala, Nathalie
Filippini, Alice
La Via, Luca
Milanese, Marco
Calza, Stefano
Bonanno, Gianbattista
Gennarelli, Massimo
Barbon, Alessandro

Source

Neural Plasticity

Issue

Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2016-02-04

Country of Publication

Egypt

No. of Pages

10

Main Subjects

Biology
Medicine

Abstract EN

Clinical studies on patients with stress-related neuropsychiatric disorders reported functional and morphological changes in brain areas where glutamatergic transmission is predominant, including frontal and prefrontal areas.

In line with this evidence, several preclinical works suggest that glutamate receptors are targets of both rapid and long-lasting effects of stress.

Here we found that acute footshock- (FS-) stress, although inducing no transcriptional and RNA editing alterations of ionotropic AMPA and NMDA glutamate receptor subunits, rapidly and transiently modulates their protein expression, phosphorylation, and localization at postsynaptic spines in prefrontal and frontal cortex.

In total extract, FS-stress increased the phosphorylation levels of GluA1 AMPA subunit at Ser845 immediately after stress and of GluA2 Ser880 2 h after start of stress.

At postsynaptic spines, stress induced a rapid decrease of GluA2 expression, together with an increase of its phosphorylation at Ser880, suggesting internalization of GluA2 AMPA containing receptors.

GluN1 and GluN2A NMDA receptor subunits were found markedly upregulated in postsynaptic spines, 2 h after start of stress.

These results suggest selected time-dependent changes in glutamatergic receptor subunits induced by acute stress, which may suggest early and transient enhancement of AMPA-mediated currents, followed by a transient activation of NMDA receptors.

American Psychological Association (APA)

Bonini, Daniela& Mora, Cristina& Tornese, Paolo& Sala, Nathalie& Filippini, Alice& La Via, Luca…[et al.]. 2016. Acute Footshock Stress Induces Time-Dependent Modifications of AMPANMDA Protein Expression and AMPA Phosphorylation. Neural Plasticity،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1113264

Modern Language Association (MLA)

Bonini, Daniela…[et al.]. Acute Footshock Stress Induces Time-Dependent Modifications of AMPANMDA Protein Expression and AMPA Phosphorylation. Neural Plasticity No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1113264

American Medical Association (AMA)

Bonini, Daniela& Mora, Cristina& Tornese, Paolo& Sala, Nathalie& Filippini, Alice& La Via, Luca…[et al.]. Acute Footshock Stress Induces Time-Dependent Modifications of AMPANMDA Protein Expression and AMPA Phosphorylation. Neural Plasticity. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1113264

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1113264