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Cited by 461

The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index.

Evidence that Inositol Polyphosphate 4-Phosphatase Type II Is a Tumor Suppressor that Inhibits PI3K Signaling

Open access
Gewinner, Christina, Wang, Zhigang C., Richardson, Andrea, Teruya-Feldstein, Julie, Etemadmoghadam, Dariush, Bowtell, David, Barretina, Jordi, Lin, William M., Rameh, Lucia, Salmena, Leonardo, Pandolfi, Pier Paolo, Cantley, Lewis C.·2009·Cancer Cell

Abstract

We report that knocking down the expression of inositol polyphosphate 4-phosphatase type II (INPP4B) in human epithelial cells, like knockdown of PTEN, resulted in enhanced Akt activation, anchorage-independent growth, and enhanced over all motility. In xenograft experiments overexpression of INPP4B resulted in reduced tumor growth. INPP4B preferentially hydrolyzes phosphatidylinositol-3,4-bisphosphate (PI(3,4)P2) with no effect on phosphatidylinositol-3.4.5-triphosphate (PI(3,4,5)P3), suggesting that PI(3,4)P2 and PI(3,4,5)P3 may cooperate in Akt activation and cell transformation. Dual knockdown of INPP4B and PTEN resulted in cellular senescence. Finally, we find loss-of-heterozygosity (LOH) at the INPP4B locus in a majority of basal-like breast cancers as well as in a significant fraction of ovarian cancers, which correlated with lower over all patient survival, suggesting that INPP4B is a tumor suppressor.

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Metadata

Authors
Gewinner, C., Wang, Z. C., Richardson, A., Teruya-Feldstein, J., Etemadmoghadam, D., Bowtell, D., Barretina, J., Lin, W. M., Rameh, L., Salmena, L., Pandolfi, P. P., & Cantley, L. C.
Venue
Cancer Cell
Publisher
Elsevier BV
Published
2009-08
Volume
16
Issue
2
Pages
115-125
ISSN
1535-6108 (ISSN-L)
OpenAlex
W2012116166
Cited by
461
References
48
FWCI
9.96
Type
journal article
Language
en
Open access
bronze

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Gewinner, C., Wang, Z. C., Richardson, A., Teruya-Feldstein, J., Etemadmoghadam, D., Bowtell, D., Barretina, J., Lin, W. M., Rameh, L., Salmena, L., Pandolfi, P. P., & Cantley, L. C. (2009). Evidence that Inositol Polyphosphate 4-Phosphatase Type II Is a Tumor Suppressor that Inhibits PI3K Signaling. Cancer Cell. https://doi.org/10.1016/j.ccr.2009.06.006

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.