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Phosphodiesterase 3B (PDE3B) is a
cyclic-nucleotide phosphodiesterase that hydrolyzes
cAMP and cGMP, with a major physiological
role in insulin-regulated metabolism, lipolysis, glucose homeostasis, and
cellular signalling. By reducing intracellular cAMP, PDE3B can suppress
cAMP/PKA-dependent signalling. In cancer, PDE3B expression or activity is
context-dependent; PDE3B ↑ may support
tumour-cell survival, metabolic adaptation, proliferation, or stem-like
properties in selected cancers by lowering cAMP signalling, whereas
PDE3B inhibition or activity ↓ may increase cAMP and
produce antiproliferative or pro-apoptotic effects in susceptible models.
Gene reference;
PDE3 review.
-Typical cancer interpretation: PDE3B ↑ is potentially tumour-promoting in some cancers
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