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Gonzalez-Callejo P, Guo Z, Ziglari T, Claudio NM, Nguyen KH, Oshimori N, Seras-Franzoso J, Pucci F. Cancer stem cell-derived extracellular vesicles preferentially target MHC-II-macrophages and PD1+ T cells in the tumor microenvironment. PLoS One 2023; 18:e0279400. [PMID: 36735677 PMCID: PMC9897575 DOI: 10.1371/journal.pone.0279400] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 12/06/2022] [Indexed: 02/04/2023] Open
Abstract
Immunotherapy is an approved treatment option for head and neck squamous cell carcinoma (HNSCC). However, the response rate to immune checkpoint blockade is only 13% for recurrent HNSCC, highlighting the urgent need to better understand tumor-immune interplay, with the ultimate goal of improving patient outcomes. HNSCC present high local recurrence rates and therapy resistance that can be attributed to the presence of cancer stem cells (CSC) within tumors. CSC exhibit singular properties that enable them to avoid immune detection and eradication. How CSC communicate with immune cells and which immune cell types are preferentially found within the CSC niche are still open questions. Here, we used genetic approaches to specifically label CSC-derived extracellular vesicles (EVs) and to perform Sortase-mediated in vivo proximity labeling of CSC niche cells. We identified specific immune cell subsets that were selectively targeted by EVCSC and that were found in the CSC niche. Native EVCSC preferentially targeted MHC-II-macrophages and PD1+ T cells in the tumor microenvironment, which were the same immune cell subsets enriched within the CSC niche. These observations indicate that the use of genetic technologies able to track EVs without in vitro isolation are a valuable tool to unveil the biology of native EVCSC.
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Affiliation(s)
- Patricia Gonzalez-Callejo
- Department of Cell, Developmental & Cancer Biology, Oregon Health and Science University, Portland, Oregon, United States of America
- Bionanoplasmonics Group, CIC biomaGUNE, Donostia-San Sebastián, Spain
| | - Zihan Guo
- Department of Cell, Developmental & Cancer Biology, Oregon Health and Science University, Portland, Oregon, United States of America
- Program in Biomedical Sciences, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Tahereh Ziglari
- Department of Cell, Developmental & Cancer Biology, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Natalie Marcia Claudio
- Department of Cell, Developmental & Cancer Biology, Oregon Health and Science University, Portland, Oregon, United States of America
- Department of Otolaryngology-Head and Neck Surgery, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Kayla Hoang Nguyen
- Department of Cell, Developmental & Cancer Biology, Oregon Health and Science University, Portland, Oregon, United States of America
- Program in Biomedical Sciences, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Naoki Oshimori
- Department of Cell, Developmental & Cancer Biology, Oregon Health and Science University, Portland, Oregon, United States of America
- Program in Biomedical Sciences, Oregon Health and Science University, Portland, Oregon, United States of America
- Department of Otolaryngology-Head and Neck Surgery, Oregon Health and Science University, Portland, Oregon, United States of America
- Department of Dermatology, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Joaquim Seras-Franzoso
- Drug Delivery and Targeting Group, Vall d’Hebron Research Institute (VHIR), Barcelona, Spain
| | - Ferdinando Pucci
- Department of Cell, Developmental & Cancer Biology, Oregon Health and Science University, Portland, Oregon, United States of America
- Program in Biomedical Sciences, Oregon Health and Science University, Portland, Oregon, United States of America
- Department of Otolaryngology-Head and Neck Surgery, Oregon Health and Science University, Portland, Oregon, United States of America
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