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SPARC-p53: The double agents of cancer

Denise Camacho1, Joana P Jesus1, António M Palma1

  • 1Champalimaud Centre for the Unknown, Lisbon, Portugal.

Advances in Cancer Research
|July 30, 2020
PubMed

Insights

Secreted protein acidic and rich in cysteine (SPARC) and p53 exhibit dual roles in cancer progression. This review explores their complex interactions within the tumor microenvironment, highlighting potential therapeutic implications.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • The tumor microenvironment significantly influences cancer development and spread.
  • SPARC (secreted protein acidic and rich in cysteine) has context-dependent roles in cancer, affecting tumor-stromal interactions.
  • The p53 transcription factor, a known tumor suppressor, can paradoxically promote tumor growth under specific conditions like hypoxia.

Purpose of the Study:

  • To review the dualistic roles of SPARC and p53 in cancer.
  • To summarize the interaction between SPARC and p53.
  • To discuss the clinical relevance of their synergistic relationship.

Main Methods:

  • Literature review of existing studies on SPARC and p53 in cancer.
  • Analysis of tumor microenvironment interactions.
  • Exploration of context-dependent protein functions.

Main Results:

  • SPARC and p53 display ambiguous functions, acting as 'double agents' in cancer.
  • Their interaction influences cancer aggressiveness and progression.
  • The interplay between SPARC and p53 is crucial in the tumor microenvironment.

Conclusions:

  • Understanding the complex roles of SPARC and p53 is vital for cancer therapy.
  • Further research into their synergistic relationship may reveal new clinical strategies.
  • Targeting these proteins could offer novel therapeutic avenues.
Keywords:
CancerCell competitionEMTSPARCStromaTP53Tumor microenvironment

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