RNY4 in Circulating Exosomes of Patients With Pediatric Anaplastic Large Cell Lymphoma: An Active Player?

Frontiers in Oncology

Stefania Bortoluzzi¹  Marta Pillon²  Elisa Carraro²  Enrico Gaffo³  Alessandra Biffi⁴  Federica Lovisa⁵  Piero Di Battista⁵  Carlotta C. Damanti⁵  Anna Garbin⁵  Ilaria Gallingani⁵  Lara Mussolin⁵ 

[1] CRIBI Interdepartmental Research Center for Innovative Biotechnologies (CRIBI), University of Padova, Padova, Italy;Clinic of Pediatric Onco-Hematology, Department of Women's and Children's Health, University of Padova, Padova, Italy;Department of Molecular Medicine, University of Padova, Padova, Italy;Gene Therapy Program, Dana Farber/Boston Children's Cancer and Blood Disorders Centers, Boston, MA, United States;Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy;

关键词: ALCL;    liquidbiopsy;    exosomes;    YRNA;    RNA-seq;    small RNA;   

DOI  :  10.3389/fonc.2020.00238

来源: DOAJ

【 摘 要 】

Emerging evidence indicates that extracellular vesicles, particularly exosomes, play a role in several biological processes and actively contribute to cancer development and progression, by carrying and delivering proteins, transcripts and small RNAs (sRNAs). There is high interest in studying exosomes of cancer patients both to develop non-invasive liquid biopsy tests for risk stratification and to elucidate their possible involvement in disease mechanisms. We profiled by RNA-seq the sRNA content of circulating exosomes of 20 pediatric patients with Anaplastic Large Cell Lymphoma (ALCL) and five healthy controls. Our analysis disclosed that non-miRNA derived sRNAs constitute the prominent fraction of sRNA loaded in exosomes and identified 180 sRNAs significantly more abundant in exosomes of ALCL patients compared to controls. YRNA fragments, accounting for most of exosomal content and being significantly increased in ALCL patients, were prioritized for further investigation by qRT-PCR. Quantification of RNY4 fragments and full-length sequences disclosed that the latter are massively loaded into exosomes of ALCL patients with more advanced and aggressive disease. These results are discussed in light of recent findings on the role of RNY4 in the modulation of tumor microenvironment.

【 授权许可】

Unknown