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Cathepsin D-Managing the Delicate Balance.

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Cathepsin D, a vital lysosomal protease, impacts cell balance. Dysregulation of this enzyme is linked to neurodegeneration and cancer, highlighting its therapeutic potential.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Cell Biology

Background:

  • Lysosomal proteases are essential for cellular homeostasis.
  • Human cathepsin D regulates protein turnover and apoptosis.
  • Altered cathepsin D levels are implicated in various diseases.

Purpose of the Study:

  • To provide an overview of cathepsin D's structure, regulation, and function.
  • To explore the role of cathepsin D in disease progression.
  • To discuss therapeutic strategies targeting cathepsin D.

Main Methods:

  • Literature review of cathepsin D's role in cell homeostasis and disease.
  • Analysis of cathepsin D's involvement in neurodegenerative disorders and cancer.
  • Examination of therapeutic interventions targeting cathepsin D.

Main Results:

  • Cathepsin D deficiency is associated with neurodegenerative diseases like neuronal ceroid lipofuscinosis.
  • Elevated extracellular cathepsin D promotes tumor growth, migration, invasion, and angiogenesis.
  • Targeting cathepsin D offers diagnostic and therapeutic opportunities.

Conclusions:

  • Cathepsin D is a critical protease with a dual role in health and disease.
  • Modulating cathepsin D activity presents promising therapeutic avenues.
  • Further research into cathepsin D inhibitors and activators is warranted.