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Ambra1 at a glance.

Valentina Cianfanelli1, Daniela De Zio2, Sabrina Di Bartolomeo3

  • 1Unit of Cell stress and survival, Danish Cancer Society Research Center, 2100 Copenhagen, Denmark IRCCS Fondazione, Santa Lucia, 00143 Rome, Italy.

Journal of Cell Science
|June 3, 2015
PubMed
Summary
This summary is machine-generated.

Activating molecule in Beclin-1-regulated autophagy (Ambra1) is a key protein regulating autophagy and cellular stress responses. Its complex regulation is vital for development, metabolism, and preventing diseases like cancer.

Keywords:
AutophagyCancer biologyCell cycleMitochondriaNervous system

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Area of Science:

  • Cellular Biology
  • Molecular Biology
  • Autophagy Research

Background:

  • Ambra1 (autophagy/Beclin-1 regulator 1) is an intrinsically disordered protein crucial for autophagy.
  • It participates in the mammalian target of rapamycin complex 1 (mTORC1)-dependent autophagy pathway.
  • Ambra1 also regulates cellular stress responses, including ER translocation and ULK1 stabilization.

Purpose of the Study:

  • To review recent advances in understanding Ambra1.
  • To highlight Ambra1's role in cellular pathophysiology.
  • To discuss Ambra1's involvement in development and disease.

Main Methods:

  • Literature review of recent studies on Ambra1.
  • Analysis of Ambra1's regulatory mechanisms (degradation, cleavage, modifications).
  • Discussion of Ambra1's physiological and pathological roles.

Main Results:

  • Ambra1 is essential for autophagosome formation and stress-induced autophagy.
  • It regulates diverse cellular processes: metabolism, cell death, cell division, and development.
  • Ambra1 dysfunction is linked to neurological disorders and cancer.

Conclusions:

  • Ambra1 is a central regulator of autophagy and cellular homeostasis.
  • Its intricate regulatory network underscores its importance in physiological and pathological contexts.
  • Further research into Ambra1 is critical for understanding development and disease.