Ezrin silencing remodulates the expression of Phosphoinositide‐specific Phospholipase C enzymes in human osteosarcoma cell lines
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Ezrin, a protein belonging to the Ezrin, radixin and moesin (ERM) family, was engaged in the metastatic spread of osteosarcoma. The Protein 4.1, Ezrin, radixin, moesin (FERM) domain of Ezrin binds the membrane Phosphatydil inositol (4,5) bisphosphate (PIP2), a crucial molecule belonging to the Phosphoinositide (PI) signal transduction pathway. The cytoskeleton cross‐linker function of Ezrin largely depends on membrane PIP2 levels, and thus upon the activity of related enzymes belonging to the PI‐specific phospholipase C (PI‐PLC) family. Based on the role of Ezrin in tumour progression and metastasis, we silenced the expression of Vil2 (OMIM *123900), the gene which codifies for Ezrin, in cultured human osteosarcoma 143B and Hs888 cell lines. After Ezrin silencing, the growth rate of both cell lines was significantly reduced and morphogical changes were observed. We also observed moderate variations both of selected PI‐PLC enzymes within the cell and of expression of the corresponding PLC genes. In 143B cell line the transcription of PLCB1 decreased, of PLCG2 increased and of PLCE differed in a time‐dependent manner. In Hs888, the expression of PLCB1 and of PLCD4 significantly increased, of PLCE moderately increased in a time dependent manner; the expression of PLCG2 was up‐regulated. These observations indicate that Ezrin silencing affects the transcription of selected PLC genes, suggesting that Ezrin might influence the expression regulation of PI‐PLC enzymes.
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siRNA targeting Ezrin in human osteosarcoma cell lines resulted in PLCγ2 upregulation.
“siRNA targeting Ezrin, a cytoplasmic peripheral protein involved in metastatic spreading of osteosarcoma and dependent on PIP2, also resulted in PLCγ2 upregulation in human osteosarcoma cell lines (155, 156), while another study of osteosarcoma cell lines found PLCγ2 to be a differentially regulated gene (157).”
From The role of PLCγ2 in immunological disorders, cancer, and neurodegeneration (2021) · cites this paper as [155]
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The membrane-cytoskeleton linker ezrin is necessary for osteosarcoma metastasis
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The role of PLCγ2 in immunological disorders, cancer, and neurodegeneration
Jackson, J. T., Mulazzani, E., Nutt, S. L., & Masters, S. L. (2021) · Journal of Biological Chemistry · doi:10.1016/j.jbc.2021.100905 · Cited by 113 · see citing works
“siRNA targeting Ezrin, a cytoplasmic peripheral protein involved in metastatic spreading of osteosarcoma and dependent on PIP2, also resulted in PLCγ2 upregulation in human osteosarcoma cell lines (155, 156), while another study of osteosarcoma cell lines found PLCγ2 to be a differentially regulated gene (157).”
Background
- Authors
- Lo Vasco, V. R., Leopizzi, M., Puggioni, C., & Della Rocca, C.
- Affiliations
- Sense Organs Department Policlinico Umberto I Faculty of Medicine and Dentistry Sapienza University of Rome viale del Policlinico 155 00185 Italy Rome
- Sapienza University of Rome (IT)
- Scienze e Biotecnologie Medico Chirurgiche Department Polo Pontino Sapienza University Latina Italy
- Venue
- Journal of Cell Communication and Signaling
- Publisher
- Wiley
- Published
- 2014-07-30
- Volume
- 8
- Issue
- 3
- Pages
- 219-229
- ISSN
- 1873-9601 (ISSN-L)
- 1873-961X
- PMC
- PMC4165819
- OpenAlex
- W2087941837
- Cited by
- 15
- References
- 3
- Citations by year
- 2024: 1 · 2022: 2 · 2021: 2 · 2020: 2 · 2017: 1 · 2016: 4 · 2015: 3
- FWCI
- 1.09
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Journal of Cell Communication and Signaling (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Florence Research (University of Florence) (submittedVersion)
- IRIS UNIMORE (University of Modena and Reggio Emilia) (submittedVersion, cc-by)
- IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Sarcoma Diagnosis and Treatment
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
- Keywords
- ezrin, osteosarcoma, phosphatidylinositol-specific phospholipase C, PLCB1, PLCγ2, gene silencing, phosphatidylinositol 4,5-bisphosphate, FERM domain, cytoskeleton, cell growth, metastasis, transcriptional regulation, 143B cells
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