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MYC: a regulator of exosome protein cargo?

Grant number: 16/50356-4
Support type:Regular Research Grants
Duration: March 01, 2017 - February 28, 2019
Field of knowledge:Biological Sciences - Biochemistry
Cooperation agreement: Brunel University London
Mobility Program: SPRINT - Projetos de pesquisa - Mobilidade
Principal Investigator:Giuseppe Palmisano
Grantee:Giuseppe Palmisano
Principal investigator abroad: Arturo Sala
Institution abroad: Brunel University, England
Home Institution: Instituto de Ciências Biomédicas (ICB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:14/06863-3 - Post-translational modifications in cancer and parasite infection diagnosis: methodological approaches and biological implications, AP.JP


In this study we will focus our interest on small particles secreted by normal and tumour cells called exosomes. Cancer-produced exosomes condition and prepare organs to metastatic dissemination. In other words, exosomes are akin to messengers of - death sent by tumour cells to facilitate cancer growth and survival. It would be very important to identify further proteins in tumour exosomes that could be used as biomarkers for different types of cancer. In a preliminary study, we have identified 152 proteins specifically modulated by MYC in neuroblastoma cells. We would like to further this study by assessing whether these proteins can confer new biological features to cells taking up the cancer secreted exosomes. This would validate our hypothesis that MYC could influence cell behaviour by shedding vesicles loaded with proteins that facilitate cell growth and metastatic dissemination. Understanding how MYC functions will improve our understanding of basic physiological processes such as cell proliferation and survival. MYC-regulated exosomal proteins, if definitively identified, could serve both as biomarkers and new targets for cancer. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CIREGIA, FEDERICA; URBANI, ANDREA; PALMISANO, GIUSEPPE. Extracellular Vesicles in Brain Tumors and Neurodegenerative Diseases. FRONTIERS IN MOLECULAR NEUROSCIENCE, v. 10, AUG 31 2017. Web of Science Citations: 22.

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