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Targeting Pyruvate Carboxylase by a Small Molecule Suppresses Breast Cancer Progression

Qingxiang Lin1, Yuan He1,2, Xue Wang1

  • 1East China Normal University and Shanghai Fengxian District Central Hospital Joint Center for Translational Medicine Shanghai Key Laboratory of Regulatory Biology Institute of Biomedical Sciences and School of Life Sciences East China Normal University Shanghai 200241 P. R. China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|May 9, 2020
PubMed

Insights

A new drug, ZY-444, targets pyruvate carboxylase (PC), an enzyme crucial for cancer cell metabolism. This discovery offers a promising new strategy for developing anti-cancer metabolism agents to combat tumor growth and metastasis.

Area of Science:

  • Biochemistry
  • Oncology
  • Pharmacology

Background:

  • Cancer cells exhibit rapid metabolism dependent on anaplerotic pathways.
  • Mechanisms of anaplerosis-associated enzymes are not well understood.
  • Lack of potent, selective antimetabolism drugs hinders clinical research.

Purpose of the Study:

  • To investigate the therapeutic potential of a novel small molecule, ZY-444.
  • To elucidate the mechanism of action of ZY-444 in cancer cells.
  • To evaluate ZY-444's efficacy against tumor growth, metastasis, and recurrence.

Main Methods:

  • ZY-444 was identified as a specific inhibitor of cellular pyruvate carboxylase (PC).
  • The study examined ZY-444's effect on breast cancer cell proliferation and metastasis.
  • Investigated the impact of PC inhibition on the Wnt/β-catenin/Snail signaling pathway.
  • Analyzed PC expression in patient tumors and normal tissues.

Main Results:

  • ZY-444 specifically inhibits cancer cell proliferation and demonstrates potent efficacy against tumor growth, metastasis, and recurrence.
  • ZY-444 binds to and inactivates pyruvate carboxylase (PC), a key anaplerotic enzyme.
  • PC inhibition by ZY-444 suppresses breast cancer progression via the Wnt/β-catenin/Snail pathway.
  • Lower PC expression in tumors correlates with improved patient survival.
  • Comparative tissue analysis suggests tumor selectivity for ZY-444.

Conclusions:

  • ZY-444 is a promising therapeutic agent targeting cancer cell metabolism.
  • Inhibition of PC represents a viable strategy for anti-cancer drug development.
  • ZY-444's mechanism involves suppressing the Wnt/β-catenin/Snail pathway.
  • PC expression levels may serve as a predictive biomarker for therapeutic response.
Keywords:
Wnt/β‐catenin/Snail pathwaybreast cancercancer metabolismpyruvate carboxylasesmall molecule ZY‐444

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