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Assessing Cellular Target Engagement by SHP2 PTPN11 Phosphatase Inhibitors
08:45

Assessing Cellular Target Engagement by SHP2 PTPN11 Phosphatase Inhibitors

Published on: July 17, 2020

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Analysis of intracellular PTEN signaling and secretion

Cindy Hodakoski1, Barry Fine2, Benjamin Hopkins1

  • 1Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA.

Methods (San Diego, Calif.)
|December 3, 2014
PubMed

Insights

The tumor suppressor phosphatase and tensin homolog (PTEN) regulates cell behavior. This review details methods to study PTEN-L and P-REX2 interactions, which modulate PTEN activity and cellular functions.

Area of Science:

  • Molecular Biology
  • Cellular Signaling
  • Biochemistry

Background:

  • PTEN is a crucial tumor suppressor that dephosphorylates PIP3, inhibiting PI3K signaling.
  • Dysregulation of PTEN signaling impacts cell behavior, proliferation, survival, and metabolism.
  • PTEN activity is modulated by novel regulatory mechanisms, including PTEN-L and P-REX2.

Purpose of the Study:

  • To review methods for identifying and validating PTEN-L and the P-REX2-PTEN complex.
  • To assess the impact of these regulatory mechanisms on PTEN phosphatase activity.
  • To examine the role of PTEN-L and P-REX2 in cellular physiology.

Main Methods:

  • Review of experimental techniques for PTEN variant and complex identification.
  • Analysis of biochemical assays to determine PTEN phosphatase activity.
  • Examination of cellular studies investigating PTEN-mediated signaling pathways.

Main Results:

  • Established methods exist to identify and validate PTEN-L and P-REX2-PTEN interactions.
  • PTEN-L and P-REX2 significantly modulate PTEN activity and downstream signaling.
  • These regulatory mechanisms influence key cellular processes like proliferation, survival, and glucose metabolism.

Conclusions:

  • PTEN-L and P-REX2 represent critical regulators of PTEN function.
  • Understanding these interactions is vital for comprehending PTEN's role in cellular physiology and disease.
  • Further research into these mechanisms may reveal therapeutic targets for cancer and metabolic disorders.
Keywords:
P-REX2PTENPTEN-LSecretion

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