Cited by 344Protein Tyrosine PhosphatasesProtein Kinase Regulation and GTPase SignalingPI3K/AKT/mTOR signaling in cancer

Multiple pathways regulated by the tumor suppressor PP2A in transformation

Westermarck, Jukka, Hahn, William C.·2008·Trends in Molecular Medicine

Abstract

Reversible protein phosphorylation plays a central role in regulating intracellular signaling. Dysregulation of the mechanisms that regulate phosphorylation plays a direct role in cancer initiation and maintenance. Although abundant evidence supports the role of kinase oncogenes in cancer development, recent work has illuminated the role of specific protein phosphatases in malignant transformation. Protein phosphatase 2A (PP2A) is the major serine-threonine phosphatase in mammalian cells. Inactivation of PP2A by viral oncoproteins, mutation of specific subunits or overexpression of endogenous inhibitors contributes to cell transformation by regulating specific phosphorylation events. Here, we review recent progress in our understanding of how PP2A regulates mitogenic signaling pathways in cancer pathogenesis and how PP2A activity is modulated in human cancers.

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Crossref · 10.1016/j.molmed.2008.02.001

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114 of 114 references verified0 citation errors · 0 not checkable

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Authors
Westermarck, J., & Hahn, W. C.
Affiliations
  • Tampere University Hospital (FI)
  • Broad Institute (US)
Venue
Trends in Molecular Medicine
Publisher
Elsevier BV
Published
2008-04
Volume
14
Issue
4
Pages
152-160
ISSN
1471-4914 (ISSN-L)
OpenAlex
W1972236331
Cited by
344
References
114
Citations by year
2026: 4 · 2025: 15 · 2024: 9 · 2023: 19 · 2022: 6 · 2021: 15 · 2020: 11 · 2019: 21 · 2018: 21 · 2017: 21 · 2016: 25 · 2015: 31 · 2014: 36 · 2013: 24 · 2012: 30
FWCI
1.44
Type
journal article
Language
en
Open access
closed
Locations
  • Trends in Molecular Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Cancer Institute (P01 CA 50661, P01CA050661)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Tyrosine Phosphatases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
Keywords
protein phosphatase 2A, tumor suppressor, malignant transformation, reversible protein phosphorylation, serine/threonine phosphatase, carcinogenesis, viral oncoproteins, PP2A inhibitors
MeSH terms
Animals, Cell Transformation, Neoplastic, Humans, Signal Transduction, Oncogene Proteins, Protein Subunits, Tumor Suppressor Proteins, Protein Phosphatase 2

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