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Literature summary for 2.7.1.154 extracted from

  • Chikh, A.; Ferro, R.; Abbott, J.J.; Pineiro, R.; Buus, R.; Iezzi, M.; Ricci, F.; Bergamaschi, D.; Ostano, P.; Chiorino, G.; Lattanzio, R.; Broggini, M.; Piantelli, M.; Maffucci, T.; Falasca, M.
    Class II phosphoinositide 3-kinase C2alpha regulates a novel signaling pathway involved in breast cancer progression (2016), Oncotarget, 7, 18325-18345.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
gene PIK3C2B, quantitative expression analysis Homo sapiens

Protein Variants

Protein Variants Comment Organism
additional information enzyme downregulation by specific shRNA in MCF-7, T-47D, and MDA-MB-231 cancer cells Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens O00750 gene PIK3C2B
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Source Tissue

Source Tissue Comment Organism Textmining
BRE-80 cell
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Homo sapiens
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breast non-neoplastic breast tissues Homo sapiens
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breast cancer cell isozyme PI3K-C2beta is overexpressed in human breast cancer cell lines Homo sapiens
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HBL-100 cell
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Homo sapiens
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lymph node PI3K-C2beta is highly expressed in lymph-nodes metastases compared to matching primary tumors Homo sapiens
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MCF-10A cell
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Homo sapiens
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MCF-7 cell
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Homo sapiens
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MDA-MB-231 cell
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Homo sapiens
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T-47D cell
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Homo sapiens
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Synonyms

Synonyms Comment Organism
class II phosphoinositide 3-kinase C2beta
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Homo sapiens
PI3K-C2beta
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Homo sapiens

General Information

General Information Comment Organism
malfunction downregulation of PI3K-C2beta in breast cancer cell lines reduces colony formation, induces cell cycle arrest and inhibits tumor growth, in particular in an estrogen-dependent in vivo xenograft. PI3K-C2beta inhibits breast cancer cell invasion in vitro and breast cancer metastasis in vivo Homo sapiens
physiological function class II phosphoinositide 3-kinase C2beta regulates a novel signaling pathway involved in breast cancer progression. Isozyme PI3K-C2beta regulates breast cancer cell growth in vitro and in vivo, PI3K-C2beta expression in breast tissues is correlated with the proliferative status of the tumor. Analsis of the mechanism of the PI3K-C2beta-dependent regulation of cell cycle progression and cell growth revealed that PI3K-C2beta regulates cyclin B1 protein levels through modulation of microRNA miR-449a levels. PI3K-C2beta may represent a key molecular switch that regulates a rate-limiting step in breast tumor progression and therefore it may be targeted to limit breast cancer spread. PI3K-C2beta regulates cyclin B1 expression through modulation of miR-449a, miR-449a levels are downregulated in primary human breast cancer samples, and cyclin B1/miR-449a expression through modulation of LEF1/beta catenin pathway in MDA-MB-231 cells. PI3K-C2beta regulates senescence via miR-449 regulation Homo sapiens