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Expression of Phosphoinositide-specific phospholipase C enzymes in human osteosarcoma cell lines.


ABSTRACT: The definition of the number and nature of signal transduction pathways networking in the pathogenesis of osteosarcoma raised great interest. Intracellular calcium ions are important second messengers implicated in the control of cell death. The calcium concentration is regulated by signal transduction pathways, including the Phosphoinositides (PI) signaling. Phosphatydil inositol (4,5) bisphosphate (PIP2) is critical for many cellular activities. The levels of PIP2 are regulated by means of Phosphoinositide-specific Phospholipase C (PI-PLC) family of enzymes. We delineated the panel of expression of PI-PLC enzymes in four human osteosarcoma cell lines. In MG-63 cell line, PI-PLC ?1, ?2, ?3, ?4, ?1, ?2, ?1, ?3 and ? resulted expressed. In 143B cell line, PI-PLC ?1, ?2, ?3, ?4, ?1, ?2, ?1, ?3 and ? were expressed. In SaOS-2 cell line, PI-PLC ?1, ?3, ?4, ?1, ?2, ?1, ?3, ? and ?1. In Hs888 cell line, PI-PLC ?1, ?3, ?4, ?1, ?1, ?3, ?4, ? and ?1 the administration of U-73122 to cultures briefly modifies the levels of PI-PLC transcripts. The obtained complete expression panel of PI-PLC isoforms will be a useful tool for further functional studies about the role of the PI signal transduction pathway in osteosarcoma.

SUBMITTER: Lo Vasco VR 

PROVIDER: S-EPMC3660692 | biostudies-literature | 2013 Jun

REPOSITORIES: biostudies-literature

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Expression of Phosphoinositide-specific phospholipase C enzymes in human osteosarcoma cell lines.

Lo Vasco Vincenza Rita VR   Leopizzi Martina M   Chiappetta Caterina C   Puggioni Chiara C   Di Cristofano Claudio C   Della Rocca Carlo C  

Journal of cell communication and signaling 20130222 2


The definition of the number and nature of signal transduction pathways networking in the pathogenesis of osteosarcoma raised great interest. Intracellular calcium ions are important second messengers implicated in the control of cell death. The calcium concentration is regulated by signal transduction pathways, including the Phosphoinositides (PI) signaling. Phosphatydil inositol (4,5) bisphosphate (PIP2) is critical for many cellular activities. The levels of PIP2 are regulated by means of Pho  ...[more]

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