Rem2-Targeted shRNAs Reduce Frequency of Miniature Excitatory Postsynaptic Currents without Altering Voltage-Gated Ca2+ Currents
2011

Rem2 and Its Role in Neuronal Synaptogenesis

publication Evidence: moderate

Author Information

Author(s): Wang Hong-Gang, Wang Chuan, Pitt Geoffrey S.

Primary Institution: Duke University Medical Center

Hypothesis

Does Rem2 regulate calcium homeostasis and synaptogenesis in neurons?

Conclusion

The study found that Rem2 does not modulate VGCCs and that inhibition of VGCCs does not affect synaptogenesis in cultured hippocampal neurons.

Supporting Evidence

  • Rem2 knockdown reduced the frequency of miniature excitatory postsynaptic currents (mEPSCs).
  • Over-expression of Rem2 did not affect mEPSC frequency or amplitude.
  • VGCC current amplitude was not significantly different after Rem2 knockdown.

Takeaway

Researchers studied a protein called Rem2 to see if it helps brain cells connect with each other. They found that even when they changed Rem2 levels, it didn't change how the cells connected.

Methodology

The study involved cultured rat hippocampal neurons, where shRNAs targeting Rem2 were used to assess effects on synaptogenesis and VGCC currents.

Potential Biases

Potential bias due to reliance on specific shRNA constructs and the inability to detect changes in endogenous Rem2 levels.

Limitations

The study's findings may not be generalizable beyond cultured neurons, and the low transfection efficiency could limit the interpretation of results.

Participant Demographics

Cultured rat hippocampal neurons from newborn rats.

Statistical Information

P-Value

0.006

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0025741

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