This is a national multi-centre, experimental, cross-sectional, non-profit study.
Extracellular vesicles are small particles circulating in plasma and documented as key players of intercellular crosstalk thanks to their cargo of proteins, lipids, and nucleic acids. The driving hypothesis of this study is that in Hairy Cell Leukemia-derived extracellular vesicles contribute to the maintenance of the tumor clone through regulation of selected key cells of the tumor microenvironment including immune cells and stromal cells, likely favoring immune evasion and marrow fibrosis. As a consequence, these circulating particles may be instrumental at identifying a biology-related, disease-specific and extracellular vesicle-based signature associated to outcomes.
Study Type
OBSERVATIONAL
Enrollment
50
Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello
Palermo, PA, Italy
RECRUITINGPoliclinico Santa Maria alla Scotte
Siena, SI, Italy
RECRUITINGIRCCS Azienda Ospedaliero-Universitaria di Bologna
Bologna, Italy
RECRUITINGExtracellular vesicle characterization
Verify whether hairy cell leukemia patients at different status (at diagnosis, in complete remission \> 2 years, or relapsed meeting treatment indications) display specific extracellular vesicle-based signatures.
Time frame: 1 years
Functional effects of extracellular vesicles
Elucidate whether plasma-derived extracellular vesicles of hairy cell leukemia patients and healthy donors and in vitro hairy cell-derived extracellular vesicles may functionally educate the immune microenvironment. Elucidate whether plasma-derived extracellular vesicles of patients and healthy donors may functionally affect the isolated hairy cells. Understand whether plasma-derived extracellular vesicles of patients and healthy donors and in vitro hairy cell-derived extracellular vesicles might shape the stromal microenvironment toward fibrosis.
Time frame: 1 years
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