A Regulatory Mechanism Involving TBP-1/Tat-Binding Protein 1 and Akt/PKB in the Control of Cell Proliferation
2011

TBP-1 and Akt in Cell Proliferation Control

publication 10 minutes Evidence: moderate

Author Information

Author(s): Sepe Maria, Festa Luisa, Tolino Fabio, Bellucci Luca, Sisto Luca, Alfano Daniela, Ragno Pia, Calabrò Viola, de Franciscis Vittorio, La Mantia Girolama, Pollice Alessandra

Primary Institution: Dipartimento di Biologia Strutturale e Funzionale, Università di Napoli “Federico II”

Hypothesis

What are the molecular pathways involved in TBP-1's role in cell proliferation?

Conclusion

TBP-1 levels modulate Akt/PKB activation, affecting cell proliferation and apoptosis resistance.

Supporting Evidence

  • TBP-1 silencing increases cell proliferation and migration.
  • Reduced TBP-1 levels lead to higher Akt activation.
  • TBP-1 depletion enhances resistance to apoptosis during serum deprivation.

Takeaway

When a protein called TBP-1 is reduced, cells grow faster and are better at surviving without food, which is important for understanding cancer.

Methodology

Stable knock-down of TBP-1 in human immortalized fibroblasts was used to study its effects on cell proliferation and Akt activation.

Participant Demographics

Human immortalized fibroblasts

Statistical Information

P-Value

p=0.046

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0022800

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