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Isadora Ramos-Andrade Laboratory of Celular and Molecular Pharmacology, Departamento de Biologia Celular, IBRAG, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brasil

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João Moraes Redox Biology Laboratory Programa de Pesquisa em Farmacologia e Inflamação, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil

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Renata Machado Brandão-Costa Laboratory of Celular and Molecular Pharmacology, Departamento de Biologia Celular, IBRAG, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brasil

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Simone Vargas da Silva Laboratory of Celular and Molecular Pharmacology, Departamento de Biologia Celular, IBRAG, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brasil

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Antônio de Souza Serviço de Cirurgia Plástica, Departamento de Cirurgia Geral, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil

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César da Silva Serviço de Cirurgia Plástica, Departamento de Cirurgia Geral, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil

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Mariana Renovato-Martins Laboratory of Inflammation and Metabolism, Departamento de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niterói, Brasil

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Christina Barja-Fidalgo Laboratory of Celular and Molecular Pharmacology, Departamento de Biologia Celular, IBRAG, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brasil

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. 2018 ). Along with the AT release of adipokines that may contribute to tumor progression, extracellular vesicles (EVs) derived from obese AT also play a role in this scenario ( Robado de Lope et al. 2018 ). EVs are small membrane vesicles coated

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Yu-Ling Tai Department of Urology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan

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Chun-Jung Lin Department of Urology, University of Texas Southwestern Medical Center, Dallas, Texas, USA

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Tsai-Kun Li Department and Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Taipei, Taiwan

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Tang-Long Shen Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan

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Jer-Tsong Hsieh Department of Urology, University of Texas Southwestern Medical Center, Dallas, Texas, USA

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Benjamin P C Chen Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas, USA

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isolation, storage, recovery, and the characterization from biofluids, such as plasma, serum, or urine, need to be optimized and standardized for clinical applications. The International Society for Extracellular Vesicles recently provided guidelines for EV

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Ophélie Delcorte CELL Unit, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium

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Julie Craps FATH & MORF Unit, IREC, Université Catholique de Louvain, Brussels, Belgium

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Siam Mahibullah CELL Unit, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium

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Catherine Spourquet CELL Unit, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium

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Ludovic D’Auria Neurochemistry group, Institute of Neurosciences, Université Catholique de Louvain, Brussels, Belgium

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Patrick Van Der Smissen PICT Platform, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium

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Chantal Dessy FATH & MORF Unit, IREC, Université Catholique de Louvain, Brussels, Belgium

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Etienne Marbaix CELL Unit, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium

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Michel Mourad Surgery and Abdominal Transplantation Division, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium

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Christophe E Pierreux CELL Unit, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium

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various malignancies, including PTC ( Khatami & Tavangar 2018 , Rappa et al. 2019 , Toraih et al. 2021 ). Special attention was paid to small non-coding RNAs, micro-RNAs (miRNAs), and small lipid bilayer-enclosed extracellular vesicles (EVs), both

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Nely Díaz-Mejía Vall d’Hebron Institute of Oncology (VHIO) and Vall d’Hebron University Hospital, Barcelona, Spain

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David García-Illescas Vall d’Hebron Institute of Oncology (VHIO) and Vall d’Hebron University Hospital, Barcelona, Spain

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Rafael Morales-Barrera Vall d’Hebron Institute of Oncology (VHIO) and Vall d’Hebron University Hospital, Barcelona, Spain

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Cristina Suarez Vall d’Hebron Institute of Oncology (VHIO) and Vall d’Hebron University Hospital, Barcelona, Spain

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Jacques Planas Vall d’Hebron Institute of Oncology (VHIO) and Vall d’Hebron University Hospital, Barcelona, Spain

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Xavier Maldonado Vall d’Hebron Institute of Oncology (VHIO) and Vall d’Hebron University Hospital, Barcelona, Spain

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Joan Carles Vall d’Hebron Institute of Oncology (VHIO) and Vall d’Hebron University Hospital, Barcelona, Spain

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Joaquin Mateo Vall d’Hebron Institute of Oncology (VHIO) and Vall d’Hebron University Hospital, Barcelona, Spain

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Poly (ADP-ribose) polymerase (PARP) inhibitors have antitumor activity in advanced prostate cancer associated with loss of homologous recombination repair (HRR) function. About 20% of all patients with advanced prostate cancer present germline or tumor mutations in HRR-related genes, the most common being BRCA2, mutated in approximately 10% of all advanced prostate cancers. Challenges related to sample availability, tumor heterogeneity and access to NGS technology need to be addressed for a successful implementation of genomic stratification in routine clinical practice. The recent regulatory approvals of PARP inhibitors olaparib and rucaparib represent the first molecular biomarker-guided drugs for men with prostate cancer. While these findings represent a significant advance in the field of precision medicine and prostate cancer, there are still many unsolved questions on the optimal use of PARP inhibitors in this disease. Several clinical trials have shown that different mutations in various genes are associated with distinct magnitudes of sensitivity to PARP inhibitors, with BRCA2 mutations associating with more frequent and durable responses, questioning the benefit for subset of patients with mutations in other HRR-associated genes. In this review, we scrutinize the clinical development of different PARP inhibitors for the treatment of advanced prostate cancer, and we discuss how the study of additional biomarkers and the design of rational drug combinations can maximize patient benefit from this drug class.

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Mona Alharbi Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Brisbane Queensland, Australia

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Felipe Zuñiga Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, University of Concepción, Concepción, Chile

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Omar Elfeky Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Brisbane Queensland, Australia

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Dominic Guanzon Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Brisbane Queensland, Australia

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Andrew Lai Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Brisbane Queensland, Australia

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Gregory E Rice Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Brisbane Queensland, Australia
Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Ochsner Clinic Foundation, New Orleans, Louisiana, USA
Perinatology Research Branch, NICHD/NIH, Wayne State University, Detroit, Michigan, USA

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Lewis Perrin Mater Research Institute, University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
Mater Ovarian Cancer Research Collaborative, Mater Adult Hospital, South Brisbane, Queensland, Australia

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John Hooper Mater Research Institute, University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
Mater Ovarian Cancer Research Collaborative, Mater Adult Hospital, South Brisbane, Queensland, Australia

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Carlos Salomon Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Brisbane Queensland, Australia
Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, University of Concepción, Concepción, Chile
Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Ochsner Clinic Foundation, New Orleans, Louisiana, USA

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and metastasis. At the beginning, cancer cells activate the endogenic oncogenic pathways and prompt the cells to proliferate in their local niches. Nevertheless, at some point, these cells recruit endogenous secretions, such as extracellular vesicles

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Himisha Beltran Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA

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Francesca Demichelis Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy

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). Extracellular vesicles (EVs) derived from metastatic tumor cells can also be detected in the circulation in men with CRPC, including those that are CTC-negative, and may carry tumor-associated proteins that can be quantified and tracked serially ( Gerdtsson et

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Lei Qiao Department of Breast and Thyroid Surgery, Xinjiang Medical University Affiliated Tumor Hospital, Urumqi, Xinjiang Uygur Autonomous Region, China

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Chao Dong Department of Breast and Thyroid Surgery, Xinjiang Medical University Affiliated Tumor Hospital, Urumqi, Xinjiang Uygur Autonomous Region, China

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Wenlei Jia Department of Breast and Thyroid Surgery, Xinjiang Medical University Affiliated Tumor Hospital, Urumqi, Xinjiang Uygur Autonomous Region, China

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Gang Sun Department of Breast and Thyroid Surgery, Xinjiang Medical University Affiliated Tumor Hospital, Urumqi, Xinjiang Uygur Autonomous Region, China

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). Exosomes are extracellular vesicles (diameter 30–150 nm) secreted by cells with various biological functions ( Mears et al. 2004 , Sharma et al. 2016 ). Their involvement in intercellular communication has been widely depicted by delivering signaling

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Penn Muluhngwi Department of Biochemistry and Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, Kentucky 40292, USA

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Carolyn M Klinge Department of Biochemistry and Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, Kentucky 40292, USA

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by regulating death signals, miRNAs can also mediate response to antiestrogens. Extracellular vesicular (exosomes) transport of miRNAs in endocrine resistance Extracellular vesicles (EVs), produced by outward budding of the PM, contain proteins and

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Enzo Lalli Université Côte d’Azur, Valbonne, France
CNRS UMR7275, Valbonne, France
NEOGENEX CNRS International Associated Laboratory, Valbonne, France
Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France

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Michaela Luconi Department of Experimental and Clinical Biomedical Sciences ‘Mario Serio’, University of Florence, Florence, Italy

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). This mechanism could also be relevant in ACC, where Wnt signaling activating mutations have been described to be the most frequent tumor mutations ( Assié et al . 2014 , Zheng et al. 2016 ). Extracellular vesicle-associated miR-483-5p isolated

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J Crona Department of Medical Sciences, Uppsala University, Uppsala, Sweden

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F Beuschlein Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, UniversitätsSpital Zürich, Zürich, Switzerland

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K Pacak Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health & Human Development, National Institutes of Health, Bethesda, Maryland, USA

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B Skogseid Department of Medical Sciences, Uppsala University, Uppsala, Sweden

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composition of a subset of ACC. Traces of extracellular vesicle-associated microRNAs in the blood was also found to be useful but for a different purpose; perioperative diagnosis of ACC ( Perge et al . 2017 ). Translational research and basic science

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