RBIO-02. CALPASTATIN PHOSPHORYLATION REGULATES RADIATION RESPONSE IN GLIOBLASTOMA
نویسندگان
چکیده
منابع مشابه
Calpastatin phosphorylation regulates radiation-induced calpain activity in glioblastoma
Glioblastoma (GBM) is an aggressive, malignant brain tumor that inevitably develops resistance to conventional chemotherapy and radiation treatments. In order to identify signaling pathways involved in the development of radiation resistance, we performed mass spectrometry-based phospho-proteomic profiling of GBM cell lines and normal human astrocytes before and after radiation treatment. We fo...
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متن کاملChanges in intracellular calpastatin localization are mediated by reversible phosphorylation.
We have previously reported that, in neuroblastoma LAN-5 cells, calpastatin is in an aggregated state, close to the cell nucleus [de Tullio, Passalacqua, Averna, Salamino, Melloni and Pontremoli (1999) Biochem. J. 343, 467-472]. In the present paper, we demonstrate that aggregated calpastatin is predominantly in a phosphorylated state. An increase in intracellular free [Ca2+] induces both depho...
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ATG4B stimulates autophagy by promoting autophagosome formation through reversible modification of ATG8. We identify ATG4B as a substrate of mammalian sterile20-like kinase (STK) 26/MST4. MST4 phosphorylates ATG4B at serine residue 383, which stimulates ATG4B activity and increases autophagic flux. Inhibition of MST4 or ATG4B activities using genetic approaches or an inhibitor of ATG4B suppress...
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ژورنال
عنوان ژورنال: Neuro-Oncology
سال: 2017
ISSN: 1522-8517,1523-5866
DOI: 10.1093/neuonc/nox168.880