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Ludwig S, Sharma P, Wise P, Sposto R, Hollingshead D, Lamb J, Lang S, Fabbri M, Whiteside TL. mRNA and miRNA Profiles of Exosomes from Cultured Tumor Cells Reveal Biomarkers Specific for HPV16-Positive and HPV16-Negative Head and Neck Cancer. Int J Mol Sci 2020; 21:E8570. [PMID: 33202950 PMCID: PMC7698015 DOI: 10.3390/ijms21228570] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/08/2020] [Accepted: 11/10/2020] [Indexed: 01/18/2023] Open
Abstract
Human papillomavirus (HPV)(+) and HPV(-) head and neck cancer (HNC) cells' interactions with the host immune system are poorly understood. Recently, we identified molecular and functional differences in exosomes produced by HPV(+) vs. HPV(-) cells, suggesting that genetic cargos of exosomes might identify novel biomarkers in HPV-related HNCs. Exosomes were isolated by size exclusion chromatography from supernatants of three HPV(+) and two HPV(-) HNC cell lines. Paired cell lysates and exosomes were analyzed for messenger RNA (mRNA) by qRT-PCR and microRNA (miR) contents by nanostring analysis. The mRNA profiles of HPV(+) vs. HPV(-) cells were distinct, with EGFR, TP53 and HSPA1A/B overexpressed in HPV(+) cells and IL6, FAS and DPP4 in HPV(-) cells. The mRNA profiles of HPV(+) or HPV(-) exosomes resembled the cargo of their parent cells. miR expression profiles in cell lysates identified 8 miRs expressed in HPV(-) cells vs. 14 miRs in HPV(+) cells. miR-205-5p was exclusively expressed in HPV(+) exosomes, and miR-1972 was only detected in HPV(-) exosomes. We showed that HPV(+) and HPV(-) exosomes recapitulated the mRNA expression profiles of their parent cells. Expression of miRs was dependent on the HPV status, and miR-205-5p in HPV(+) and miR-1972 in HPV(-) exosomes emerge as potential discriminating HPV-associated biomarkers.
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Affiliation(s)
- Sonja Ludwig
- Department of Otorhinolaryngology Head and Neck Surgery, University Hospital Mannheim, University of Heidelberg, 68167 Mannheim, Germany;
- Department of Pathology, University of Pittsburgh School of Medicine and University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213, USA;
| | - Priyanka Sharma
- Department of Pathology, University of Pittsburgh School of Medicine and University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213, USA;
| | - Petra Wise
- Department of Pediatrics, Children′s Center for Cancer and Blood Diseases and Divisions of Hematology, Oncology, Blood and Marrow Transplantation, Children’s Hospital Los Angeles, University of Southern California, Los Angeles, CA 90027, USA; (P.W.); (R.S.)
| | - Richard Sposto
- Department of Pediatrics, Children′s Center for Cancer and Blood Diseases and Divisions of Hematology, Oncology, Blood and Marrow Transplantation, Children’s Hospital Los Angeles, University of Southern California, Los Angeles, CA 90027, USA; (P.W.); (R.S.)
| | - Deborah Hollingshead
- Genomics Research Core, University of Pittsburgh School of the Health Sciences, Pittsburgh, PA 15213, USA; (D.H.); (J.L.)
| | - Janette Lamb
- Genomics Research Core, University of Pittsburgh School of the Health Sciences, Pittsburgh, PA 15213, USA; (D.H.); (J.L.)
| | - Stephan Lang
- Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital Essen, 45147 Essen, Germany;
| | - Muller Fabbri
- Cancer Biology Program, University of Hawai’i Cancer Center, University of Hawai’i at Manoa, Honolulu, HI 96813, USA;
| | - Theresa L. Whiteside
- Department of Pathology, University of Pittsburgh School of Medicine and University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213, USA;
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