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Oyelakin A, Sosa J, Nayak K, Glathar A, Gluck C, Sethi I, Tsompana M, Nowak N, Buck M, Romano RA, Sinha S. An integrated genomic approach identifies follistatin as a target of the p63-epidermal growth factor receptor oncogenic network in head and neck squamous cell carcinoma. NAR Cancer 2023; 5:zcad038. [PMID: 37492374 PMCID: PMC10365026 DOI: 10.1093/narcan/zcad038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 07/04/2023] [Accepted: 07/12/2023] [Indexed: 07/27/2023] Open
Abstract
Although numerous putative oncogenes have been associated with the etiology of head and neck squamous cell carcinoma (HNSCC), the mechanisms by which these oncogenes and their downstream targets mediate tumor progression have not been fully elucidated. We performed an integrative analysis to identify a crucial set of targets of the oncogenic transcription factor p63 that are common across multiple transcriptomic datasets obtained from HNSCC patients, and representative cell line models. Notably, our analysis revealed FST which encodes follistatin, a secreted glycoprotein that inhibits the transforming growth factor TGFβ/activin signaling pathways, to be a direct transcriptional target of p63. In addition, we found that FST expression is also driven by epidermal growth factor receptor EGFR signaling, thus mediating a functional link between the TGF-β and EGFR pathways. We show through loss- and gain-of-function studies that FST predominantly imparts a tumor-growth and migratory phenotype in HNSCC cells. Furthermore, analysis of single-cell RNA sequencing data from HNSCC patients unveiled cancer cells as the dominant source of FST within the tumor microenvironment and exposed a correlation between the expression of FST and its regulators with immune infiltrates. We propose FST as a prognostic biomarker for patient survival and a compelling candidate mediating the broad effects of p63 on the tumor and its associated microenvironment.
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Affiliation(s)
- Akinsola Oyelakin
- Department of Oral Biology, School of Dental Medicine, State University of New York at Buffalo, Buffalo, NY, USA
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Jennifer Sosa
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Kasturi Bala Nayak
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Alexandra Glathar
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Christian Gluck
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Isha Sethi
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Maria Tsompana
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Norma Nowak
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Michael Buck
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
- Department of Biomedical Informatics, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Rose-Anne Romano
- Department of Oral Biology, School of Dental Medicine, State University of New York at Buffalo, Buffalo, NY, USA
| | - Satrajit Sinha
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
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Chaudhary R, Slebos RJ, Noel LC, Song F, Poole MI, Hoening DS, Hernandez-Prera JC, Conejo-Garcia JR, Guevara-Patino JA, Wang X, Xie M, Tan AC, Chung CH. EGFR Inhibition by Cetuximab Modulates Hypoxia and IFN Response Genes in Head and Neck Squamous Cell Carcinoma. CANCER RESEARCH COMMUNICATIONS 2023; 3:896-907. [PMID: 37377902 PMCID: PMC10202124 DOI: 10.1158/2767-9764.crc-22-0443] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 02/01/2023] [Accepted: 05/02/2023] [Indexed: 06/29/2023]
Abstract
Head and neck squamous cell carcinoma (HNSCC) has one of the most hypoxic and immunosuppressive tumor microenvironments (TME) among solid tumors. However, there is no proven therapeutic strategy to remodel the TME to be less hypoxic and proinflammatory. In this study, we classified tumors according to a Hypoxia-Immune signature, characterized the immune cells in each subgroup, and analyzed the signaling pathways to identify a potential therapeutic target that can remodel the TME. We confirmed that hypoxic tumors had significantly higher numbers of immunosuppressive cells, as evidenced by a lower ratio of CD8+ T cells to FOXP3+ regulatory T cells, compared with nonhypoxic tumors. Patients with hypoxic tumors had worse outcomes after treatment with pembrolizumab or nivolumab, anti-programmed cell death-1 inhibitors. Our expression analysis also indicated that hypoxic tumors predominantly increased the expression of the EGFR and TGFβ pathway genes. Cetuximab, an anti-EGFR inhibitor, decreased the expression of hypoxia signature genes, suggesting that it may alleviate the effects of hypoxia and remodel the TME to become more proinflammatory. Our study provides a rationale for treatment strategies combining EGFR-targeted agents and immunotherapy in the management of hypoxic HNSCC. Significance While the hypoxic and immunosuppressive TME of HNSCC has been well described, comprehensive evaluation of the immune cell components and signaling pathways contributing to immunotherapy resistance has been poorly characterized. We further identified additional molecular determinants and potential therapeutic targets of the hypoxic TME to fully leverage currently available targeted therapies that can be administered with immunotherapy.
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Affiliation(s)
- Ritu Chaudhary
- Department of Head and Neck-Endocrine Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Robbert J.C. Slebos
- Department of Head and Neck-Endocrine Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Leenil C. Noel
- Department of Head and Neck-Endocrine Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Feifei Song
- Department of Head and Neck-Endocrine Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Maria I. Poole
- Department of Head and Neck-Endocrine Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Dirk S. Hoening
- Department of Head and Neck-Endocrine Oncology, Moffitt Cancer Center, Tampa, Florida
| | | | | | | | - Xuefeng Wang
- Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, Tampa, Florida
| | - Mengyu Xie
- Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, Tampa, Florida
| | - Aik Choon Tan
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Christine H. Chung
- Department of Head and Neck-Endocrine Oncology, Moffitt Cancer Center, Tampa, Florida
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Kleczko EK, Le AT, Hinz TK, Nguyen TT, Navarro A, Hu CJ, Selman AM, Clambey ET, Merrick DT, Lu S, Weiser-Evans M, Nemenoff RA, Heasley LE. Novel EGFR-mutant mouse models of lung adenocarcinoma reveal adaptive immunity requirement for durable osimertinib response. Cancer Lett 2023; 556:216062. [PMID: 36657561 PMCID: PMC10544803 DOI: 10.1016/j.canlet.2023.216062] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 01/17/2023]
Abstract
Lung cancers bearing oncogenically-mutated EGFR represent a significant fraction of lung adenocarcinomas (LUADs) for which EGFR-targeting tyrosine kinase inhibitors (TKIs) provide a highly effective therapeutic approach. However, these lung cancers eventually acquire resistance and undergo progression within a characteristically broad treatment duration range. Our previous study of EGFR mutant lung cancer patient biopsies highlighted the positive association of a TKI-induced interferon γ transcriptional response with increased time to treatment progression. To test the hypothesis that host immunity contributes to the TKI response, we developed novel genetically-engineered mouse models of EGFR mutant lung cancer bearing exon 19 deletions (del19) or the L860R missense mutation. Both oncogenic EGFR mouse models developed multifocal LUADs from which transplantable cancer cell lines sensitive to the EGFR-specific TKIs, gefitinib and osimertinib, were derived. When propagated orthotopically in the left lungs of syngeneic C57BL/6 mice, deep and durable shrinkage of the cell line-derived tumors was observed in response to daily treatment with osimertinib. By contrast, orthotopic tumors propagated in immune deficient nu/nu or Rag1-/- mice exhibited modest tumor shrinkage followed by rapid progression on continuous osimertinib treatment. Importantly, osimertinib treatment significantly increased intratumoral T cell content and decreased neutrophil content relative to diluent treatment. The findings provide strong evidence supporting the requirement for adaptive immunity in the durable therapeutic control of EGFR mutant lung cancer.
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Affiliation(s)
- Emily K Kleczko
- Departments of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Anh T Le
- Departments of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Trista K Hinz
- Departments of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Eastern Colorado VA Healthcare System, Rocky Mountain Regional VA Medical Center, Aurora, CO, USA
| | - Teresa T Nguyen
- Departments of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Andre Navarro
- Departments of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Cheng-Jun Hu
- Departments of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Ana M Selman
- Departments of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Eric T Clambey
- Departments of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Daniel T Merrick
- Departments of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Sizhao Lu
- Departments of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Mary Weiser-Evans
- Departments of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Raphael A Nemenoff
- Departments of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
| | - Lynn E Heasley
- Departments of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Eastern Colorado VA Healthcare System, Rocky Mountain Regional VA Medical Center, Aurora, CO, USA.
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Sisler DJ, Hinz TK, Le AT, Kleczko EK, Nemenoff RA, Heasley LE. Evaluation of KRAS G12C inhibitor responses in novel murine KRAS G12C lung cancer cell line models. Front Oncol 2023; 13:1094123. [PMID: 36845684 PMCID: PMC9945252 DOI: 10.3389/fonc.2023.1094123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/03/2023] [Indexed: 02/11/2023] Open
Abstract
Introduction The KRAS(G12C) mutation is the most common genetic mutation in North American lung adenocarcinoma patients. Recently, direct inhibitors of the KRASG12C protein have been developed and demonstrate clinical response rates of 37-43%. Importantly, these agents fail to generate durable therapeutic responses with median progression-free survival of ~6.5 months. Methods To provide models for further preclinical improvement of these inhibitors, we generated three novel murine KRASG12C-driven lung cancer cell lines. The co-occurring NRASQ61L mutation in KRASG12C-positive LLC cells was deleted and the KRASG12V allele in CMT167 cells was edited to KRASG12C with CRISPR/Cas9 methods. Also, a novel murine KRASG12C line, mKRC.1, was established from a tumor generated in a genetically-engineered mouse model. Results The three lines exhibit similar in vitro sensitivities to KRASG12C inhibitors (MRTX-1257, MRTX-849, AMG-510), but distinct in vivo responses to MRTX-849 ranging from progressive growth with orthotopic LLC-NRAS KO tumors to modest shrinkage with mKRC.1 tumors. All three cell lines exhibited synergistic in vitro growth inhibition with combinations of MRTX-1257 and the SHP2/PTPN11 inhibitor, RMC-4550. Moreover, treatment with a MRTX-849/RMC-4550 combination yielded transient tumor shrinkage in orthotopic LLC-NRAS KO tumors propagated in syngeneic mice and durable shrinkage of mKRC.1 tumors. Notably, single-agent MRTX-849 activity in mKRC.1 tumors and the combination response in LLC-NRAS KO tumors was lost when the experiments were performed in athymic nu/nu mice, supporting a growing literature demonstrating a role for adaptive immunity in the response to this class of drugs. Discussion These new models of murine KRASG12C mutant lung cancer should prove valuable for identifying improved therapeutic combination strategies with KRASG12C inhibitors.
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Affiliation(s)
- Daniel J. Sisler
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States,Eastern Colorado VA Healthcare System, Rocky Mountain Regional VA Medical Center, Aurora, CO, United States
| | - Trista K. Hinz
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States,Eastern Colorado VA Healthcare System, Rocky Mountain Regional VA Medical Center, Aurora, CO, United States
| | - Anh T. Le
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Emily K. Kleczko
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Raphael A. Nemenoff
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Lynn E. Heasley
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States,Eastern Colorado VA Healthcare System, Rocky Mountain Regional VA Medical Center, Aurora, CO, United States,*Correspondence: Lynn E. Heasley,
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5
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Kleczko EK, Hinz TK, Nguyen TT, Gurule NJ, Navarro A, Le AT, Johnson AM, Kwak J, Polhac DI, Clambey ET, Weiser-Evans M, Merrick DT, Yang MC, Patil T, Schenk EL, Heasley LE, Nemenoff RA. Durable responses to alectinib in murine models of EML4-ALK lung cancer requires adaptive immunity. NPJ Precis Oncol 2023; 7:15. [PMID: 36739466 PMCID: PMC9899278 DOI: 10.1038/s41698-023-00355-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 01/18/2023] [Indexed: 02/06/2023] Open
Abstract
Lung cancers bearing oncogenic EML4-ALK fusions respond to targeted tyrosine kinase inhibitors (TKIs; e.g., alectinib), with variation in the degree of shrinkage and duration of treatment (DOT). However, factors that control this response are not well understood. While the contribution of the immune system in mediating the response to immunotherapy has been extensively investigated, less is known regarding the contribution of immunity to TKI therapeutic responses. We previously demonstrated a positive association of a TKI-induced interferon gamma (IFNγ) transcriptional response with DOT in EGFR-mutant lung cancers. Herein, we used three murine models of EML4-ALK lung cancer to test the role for host immunity in the alectinib therapeutic response. The cell lines (EA1, EA2, EA3) were propagated orthotopically in the lungs of immunocompetent and immunodeficient mice and treated with alectinib. Tumor volumes were serially measured by μCT and immune cell content was measured by flow cytometry and multispectral immunofluorescence. Transcriptional responses to alectinib were assessed by RNAseq and secreted chemokines were measured by ELISA. All cell lines were similarly sensitive to alectinib in vitro and as orthotopic tumors in immunocompetent mice, exhibited durable shrinkage. However, in immunodeficient mice, all tumor models rapidly progressed on TKI therapy. In immunocompetent mice, EA2 tumors exhibited a complete response, whereas EA1 and EA3 tumors retained residual disease that rapidly progressed upon termination of TKI treatment. Prior to treatment, EA2 tumors had greater numbers of CD8+ T cells and fewer neutrophils compared to EA1 tumors. Also, RNAseq of cancer cells recovered from untreated tumors revealed elevated levels of CXCL9 and 10 in EA2 tumors, and higher levels of CXCL1 and 2 in EA1 tumors. Analysis of pre-treatment patient biopsies from ALK+ tumors revealed an association of neutrophil content with shorter time to progression. Combined, these data support a role for adaptive immunity in durability of TKI responses and demonstrate that the immune cell composition of the tumor microenvironment is predictive of response to alectinib therapy.
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Affiliation(s)
- Emily K Kleczko
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Trista K Hinz
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Eastern Colorado VA Healthcare System, Rocky Mountain Regional VA Medical Center, Aurora, Colorado, USA
| | - Teresa T Nguyen
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Natalia J Gurule
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Andre Navarro
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Anh T Le
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Amber M Johnson
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jeff Kwak
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Diana I Polhac
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Mary Weiser-Evans
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Daniel T Merrick
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Michael C Yang
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Tejas Patil
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Erin L Schenk
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
| | - Lynn E Heasley
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
- Eastern Colorado VA Healthcare System, Rocky Mountain Regional VA Medical Center, Aurora, Colorado, USA.
| | - Raphael A Nemenoff
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
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6
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Glathar AR, Oyelakin A, Nayak KB, Sosa J, Romano RA, Sinha S. A Systemic and Integrated Analysis of p63-Driven Regulatory Networks in Mouse Oral Squamous Cell Carcinoma. Cancers (Basel) 2023; 15:446. [PMID: 36672394 PMCID: PMC9856320 DOI: 10.3390/cancers15020446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/04/2023] [Accepted: 01/07/2023] [Indexed: 01/12/2023] Open
Abstract
Oral squamous cell carcinoma (OSCC) is the most common malignancy of the oral cavity and is linked to tobacco exposure, alcohol consumption, and human papillomavirus infection. Despite therapeutic advances, a lack of molecular understanding of disease etiology, and delayed diagnoses continue to negatively affect survival. The identification of oncogenic drivers and prognostic biomarkers by leveraging bulk and single-cell RNA-sequencing datasets of OSCC can lead to more targeted therapies and improved patient outcomes. However, the generation, analysis, and continued utilization of additional genetic and genomic tools are warranted. Tobacco-induced OSCC can be modeled in mice via 4-nitroquinoline 1-oxide (4NQO), which generates a spectrum of neoplastic lesions mimicking human OSCC and upregulates the oncogenic master transcription factor p63. Here, we molecularly characterized established mouse 4NQO treatment-derived OSCC cell lines and utilized RNA and chromatin immunoprecipitation-sequencing to uncover the global p63 gene regulatory and signaling network. We integrated our p63 datasets with published bulk and single-cell RNA-sequencing of mouse 4NQO-treated tongue and esophageal tumors, respectively, to generate a p63-driven gene signature that sheds new light on the role of p63 in murine OSCC. Our analyses reveal known and novel players, such as COTL1, that are regulated by p63 and influence various oncogenic processes, including metastasis. The identification of new sets of potential biomarkers and pathways, some of which are functionally conserved in human OSCC and can prognosticate patient survival, offers new avenues for future mechanistic studies.
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Affiliation(s)
- Alexandra Ruth Glathar
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY 14203, USA
| | - Akinsola Oyelakin
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY 14203, USA
| | - Kasturi Bala Nayak
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY 14203, USA
| | - Jennifer Sosa
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY 14203, USA
| | - Rose-Anne Romano
- Department of Oral Biology, School of Dental Medicine, State University of New York at Buffalo, Buffalo, NY 14214, USA
| | - Satrajit Sinha
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY 14203, USA
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Kang JJ, Ko A, Kil SH, Mallen-St Clair J, Shin DS, Wang MB, Srivatsan ES. EGFR pathway targeting drugs in head and neck cancer in the era of immunotherapy. Biochim Biophys Acta Rev Cancer 2023; 1878:188827. [PMID: 36309124 DOI: 10.1016/j.bbcan.2022.188827] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 09/30/2022] [Accepted: 10/16/2022] [Indexed: 11/12/2022]
Abstract
Receptor tyrosine kinases (RTKs) are cell surface receptors that bind growth factor ligands and initiate cellular signaling. Of the 20 classes of RTKs, 7 classes, I-V, VIII, and X, are linked to head and neck cancers (HNCs). We focus on the first class of RTK, epidermal growth factor receptor (EGFR), as it is the most thoroughly studied class. EGFR overexpression is observed in 20% of tumors, and expression of EGFR variant III is seen in 15% of aggressive chemoradiotherapy resistant HNCs. Currently, the EGFR monoclonal antibody (mAb) cetuximab is the only FDA approved RTK-targeting drug for the treatment of HNCs. Clinical trials have also included EGFR mAbs, with tyrosine kinase inhibitors, and small molecule inhibitors targeting the EGFR, MAPK, and mTOR pathways. Additionally, Immunotherapy has been found to be effective in 15 to 20% of patients with recurrent or metastatic HNC as a monotherapy. Thus, attempts are underway for the combinatorial treatment of immunotherapy and EGFR mAbs to determine if the recruitment of immune cells in the tumor microenvironment can overcome EGFR resistance.
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Affiliation(s)
- James J Kang
- Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Albert Ko
- Department of Surgery, VA Greater Los Angeles Healthcare System/UCLA David Geffen School of Medicine, Los Angeles, CA, USA
| | - Sang Hoon Kil
- Department of Surgery, VA Greater Los Angeles Healthcare System/UCLA David Geffen School of Medicine, Los Angeles, CA, USA
| | - Jon Mallen-St Clair
- Department of Otolaryngology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Daniel Sanghoon Shin
- Department of Medicine, VA Greater Los Angeles Healthcare System/UCLA David Geffen School of Medicine, Los Angeles, CA, USA; Molecular Biology Institute, UCLA, Los Angeles, CA, USA; Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA, USA
| | - Marilene B Wang
- Department of Surgery, VA Greater Los Angeles Healthcare System/UCLA David Geffen School of Medicine, Los Angeles, CA, USA; Molecular Biology Institute, UCLA, Los Angeles, CA, USA; Department of Head and Neck Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
| | - Eri S Srivatsan
- Department of Surgery, VA Greater Los Angeles Healthcare System/UCLA David Geffen School of Medicine, Los Angeles, CA, USA; Molecular Biology Institute, UCLA, Los Angeles, CA, USA; Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA, USA.
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8
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Georgiou-Siafis SK, Miliotou AN, Ntenti C, Pappas IS, Papadopoulou LC. An Innovative PTD-IVT-mRNA Delivery Platform for CAR Immunotherapy of ErbB(+) Solid Tumor Neoplastic Cells. Biomedicines 2022; 10:2885. [PMID: 36359405 PMCID: PMC9687928 DOI: 10.3390/biomedicines10112885] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/02/2022] [Accepted: 11/04/2022] [Indexed: 11/25/2023] Open
Abstract
Chimeric antigen receptor (CAR) immunotherapy includes the genetic modification of immune cells to carry such a receptor and, thus, recognize cancer cell surface antigens. Viral transfection is currently the preferred method, but it carries the risk of off-target mutagenicity. Other transfection platforms have thus been proposed, such the in vitro transcribed (IVT)-mRNAs. In this study, we exploited our innovative, patented delivery platform to produce protein transduction domain (PTD)-IVT-mRNAs for the expression of CAR on NK-92 cells. CAR T1E-engineered NK-92 cells, harboring the sequence of T1E single-chain fragment variant (scFv) to recognize the ErbB receptor, bearing either CD28 or 4-1BB as co-stimulatory signaling domains, were prepared and assessed for their effectiveness in two different ErbB(+) cancer cell lines. Our results showed that the PTD-IVT-mRNA of CAR was safely transduced and expressed into NK-92 cells. CAR T1E-engineered NK-92 cells provoked high levels of cell death (25-33%) as effector cells against both HSC-3 (oral squamous carcinoma) and MCF-7 (breast metastatic adenocarcinoma) human cells in the co-incubation assays. In conclusion, the application of our novel PTD-IVT-mRNA delivery platform to NK-92 cells gave promising results towards future CAR immunotherapy approaches.
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Affiliation(s)
- Sofia K. Georgiou-Siafis
- Laboratory of Pharmacology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Macedonia, Greece
- Laboratory of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Thessaly, 43100 Karditsa, Thessaly, Greece
| | - Androulla N. Miliotou
- Laboratory of Pharmacology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Macedonia, Greece
- Department of Health Sciences, KES College, Nicosia 1055, Cyprus
| | - Charikleia Ntenti
- Laboratory of Pharmacology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Macedonia, Greece
- 1st Laboratory of Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Macedonia, Greece
| | - Ioannis S. Pappas
- Laboratory of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Thessaly, 43100 Karditsa, Thessaly, Greece
| | - Lefkothea C. Papadopoulou
- Laboratory of Pharmacology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Macedonia, Greece
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9
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Kono M, Saito S, Egloff AM, Allen CT, Uppaluri R. The mouse oral carcinoma (MOC) model: A 10-year retrospective on model development and head and neck cancer investigations. Oral Oncol 2022; 132:106012. [PMID: 35820346 PMCID: PMC9364442 DOI: 10.1016/j.oraloncology.2022.106012] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 07/02/2022] [Indexed: 11/21/2022]
Abstract
Preclinical models of cancer have long been paramount to understanding tumor development and advancing the treatment of cancer. Creating preclinical models that mimic the complexity and heterogeneity of human tumors is a key challenge in the advancement of cancer therapy. About ten years ago, we created the mouse oral carcinoma (MOC) cell line models that were derived from 7, 12-dimethylbenz(a) anthracene (DMBA)-induced mouse oral squamous cell cancers. This model has been used in numerous investigations, including studies on tumor biology and therapeutics. We have seen remarkable progress in cancer immunology in recent years, and these cell lines, which are syngeneic to C57BL/6 background, have also been used to study the anti-tumor immune response. Herein, we aim to review the MOC model from its development and characterization to its use in non-immunological and immunological preclinical head and neck squamous cell carcinoma (HNSCC) studies. Integrating and refining these MOC model studies and extending findings to other systems will provide crucial insights for translational approaches aimed at improving head and neck cancer treatment.
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Affiliation(s)
- Michihisa Kono
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, United States; Department of Otolaryngology - Head and Neck Surgery, Asahikawa Medical University, Asahikawa, Japan.
| | - Shin Saito
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, United States; Department of Otolaryngology - Head and Neck Surgery, Keio University School of Medicine, Tokyo, Japan.
| | - Ann Marie Egloff
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, United States; Department of Surgery/Otolaryngology, Brigham and Women's Hospital, United States.
| | - Clint T Allen
- Section on Translational Tumor Immunology, National Institutes on Deafness and Communication Disorders, NIH, Bethesda, MD, United States.
| | - Ravindra Uppaluri
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, United States; Department of Surgery/Otolaryngology, Brigham and Women's Hospital, United States.
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10
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Foy JP, Karabajakian A, Ortiz-Cuaran S, Boussageon M, Michon L, Bouaoud J, Fekiri D, Robert M, Baffert KA, Hervé G, Quilhot P, Attignon V, Girod A, Chaine A, Benassarou M, Zrounba P, Caux C, Ghiringhelli F, Lantuejoul S, Crozes C, Brochériou I, Pérol M, Fayette J, Bertolus C, Saintigny P. Immunologically active phenotype by gene expression profiling is associated with clinical benefit from PD-1/PD-L1 inhibitors in real-world head and neck and lung cancer patients. Eur J Cancer 2022; 174:287-298. [PMID: 36038492 DOI: 10.1016/j.ejca.2022.06.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 05/25/2022] [Accepted: 06/17/2022] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Identification of tumours harbouring an overall active immune phenotype may help for selecting patients with advanced head and neck squamous cell carcinomas (HNSCC) and non-small cell lung cancer (NSCLC) who may benefit from immunotherapies. Our objective was to develop a reliable and stable scoring system to identify those immunologically active tumours. METHODS Using gene expression profiles of 421 HNSCC, we developed a score to identify immunologically active tumours. Validation of the 'HOT' score was done in 40 HNSCC and 992 NSCLC. Stability of the 'HOT' score was tested in paired HNSCC samples from diagnostic biopsies versus surgically resected specimens, untreated versus recurrent samples, and pre-versus post-cetuximab samples in a total of 76 patients. The association between the 'HOT' score with overall survival (OS) and progression-free survival (PFS) was tested in 184 patients with HNSCC or NSCLC treated with PD-1/PD-L1 inhibitors. RESULTS A 27-gene expression based 'HOT' score was correlated with: (i) PD-L1 and IDO1 expression, (ii) TCD8 infiltrate and (iii) activation of the IFN-γ pathway. The HOT score concordance when comparing diagnostic biopsies and surgically resected specimens was higher than in untreated samples versus recurrent or pre-versus post-cetuximab samples. In 102 and 82 patients with HNSCC or NSCLC treated with PD-1/PD-L1 inhibitors, the HOT score was associated with an improved OS and PFS in multivariate analysis. CONCLUSION The 'HOT' score is a simple and robust approach to identify real-world patients with HNSCC and NSCLC immunologically active tumours who may benefit from PD-1/PD-L1 inhibitors.
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Affiliation(s)
- Jean-Philippe Foy
- Sorbonne Université, Paris, France; Department of Maxillo-Facial Surgery, Hôpital Pitié-Salpêtrière, Assistance Publique des Hôpitaux de Paris, Paris, France; Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, 69008, France.
| | - Andy Karabajakian
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, 69008, France; Department of Medical Oncology, Centre Léon Bérard, 69008, Lyon, France
| | - Sandra Ortiz-Cuaran
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, 69008, France
| | - Maxime Boussageon
- Department of Medical Oncology, Centre Léon Bérard, 69008, Lyon, France
| | - Lucas Michon
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, 69008, France
| | - Jebrane Bouaoud
- Sorbonne Université, Paris, France; Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, 69008, France
| | - Dorssafe Fekiri
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, 69008, France
| | - Marie Robert
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, 69008, France
| | - Kim-Arthur Baffert
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, 69008, France
| | - Geneviève Hervé
- Sorbonne Université, Paris, France; Department of Pathology, Hôpital Pitié-Salpêtrière, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Pauline Quilhot
- Sorbonne Université, Paris, France; Department of Pathology, Hôpital Pitié-Salpêtrière, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Valéry Attignon
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, 69008, France
| | - Angélique Girod
- Sorbonne Université, Paris, France; Department of Maxillo-Facial Surgery, Hôpital Pitié-Salpêtrière, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - André Chaine
- Sorbonne Université, Paris, France; Department of Maxillo-Facial Surgery, Hôpital Pitié-Salpêtrière, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Mourad Benassarou
- Sorbonne Université, Paris, France; Department of Maxillo-Facial Surgery, Hôpital Pitié-Salpêtrière, Assistance Publique des Hôpitaux de Paris, Paris, France
| | | | - Christophe Caux
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, 69008, France
| | - François Ghiringhelli
- Department of Medical Oncology, Centre Georges-François Leclerc, Dijon 21000, France
| | | | - Carole Crozes
- Department of Pathology, Centre Léon Bérard, 69008, Lyon, France
| | - Isabelle Brochériou
- Sorbonne Université, Paris, France; Department of Pathology, Hôpital Pitié-Salpêtrière, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Maurice Pérol
- Department of Medical Oncology, Centre Léon Bérard, 69008, Lyon, France
| | - Jérôme Fayette
- Department of Medical Oncology, Centre Léon Bérard, 69008, Lyon, France
| | - Chloé Bertolus
- Sorbonne Université, Paris, France; Department of Maxillo-Facial Surgery, Hôpital Pitié-Salpêtrière, Assistance Publique des Hôpitaux de Paris, Paris, France; Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, 69008, France
| | - Pierre Saintigny
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, 69008, France; Department of Medical Oncology, Centre Léon Bérard, 69008, Lyon, France; Department of Translational Medicine, Centre Léon Bérard, 69008, Lyon, France.
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11
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Multiplex Tissue Imaging: Spatial Revelations in the Tumor Microenvironment. Cancers (Basel) 2022; 14:cancers14133170. [PMID: 35804939 PMCID: PMC9264815 DOI: 10.3390/cancers14133170] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary Cancer is the leading cause of death worldwide, and the overall aging of the population results in an increased risk of a cancer diagnosis during a person’s lifetime. Diagnosis and treatment at an early stage will typically increase the chances of survival. Tumors can develop therapy resistance, and it is difficult to predict how individual patients will respond to therapy. Most studies that aim to resolve this problem have focused on studying the composition and characteristics of dissociated tumors, while ignoring the role of cell localization and interactions within the tumor microenvironment. In the past decade, technological innovations have enabled multiplex imaging analyses of intact tumors to study localization and interaction parameters, which can be used as biomarkers, or can be correlated with treatment responses and clinical outcomes. Abstract The tumor microenvironment is a complex ecosystem containing various cell types, such as immune cells, fibroblasts, and endothelial cells, which interact with the tumor cells. In recent decades, the cancer research field has gained insight into the cellular subtypes that are involved in tumor microenvironment heterogeneity. Moreover, it has become evident that cellular interactions in the tumor microenvironment can either promote or inhibit tumor development, progression, and drug resistance, depending on the context. Multiplex spatial analysis methods have recently been developed; these have offered insight into how cellular crosstalk dynamics and heterogeneity affect cancer prognoses and responses to treatment. Multiplex (imaging) technologies and computational analysis methods allow for the spatial visualization and quantification of cell–cell interactions and properties. These technological advances allow for the discovery of cellular interactions within the tumor microenvironment and provide detailed single-cell information on properties that define cellular behavior. Such analyses give insights into the prognosis and mechanisms of therapy resistance, which is still an urgent problem in the treatment of multiple types of cancer. Here, we provide an overview of multiplex imaging technologies and concepts of downstream analysis methods to investigate cell–cell interactions, how these studies have advanced cancer research, and their potential clinical implications.
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12
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High Expression of Interferon Pathway Genes CXCL10 and STAT2 Is Associated with Activated T-Cell Signature and Better Outcome of Oral Cancer Patients. J Pers Med 2022; 12:jpm12020140. [PMID: 35207629 PMCID: PMC8877377 DOI: 10.3390/jpm12020140] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 02/05/2023] Open
Abstract
To improve the survival rate of cancer patients, biomarkers for both early diagnosis and patient stratification for appropriate therapeutics play crucial roles in precision oncology. Investigation of altered gene expression and the relevant molecular pathways in cancer cells are helpful for discovering such biomarkers. In this study, we explore the potential prognostic biomarkers for oral cancer patients through systematically analyzing five oral cancer transcriptomic data sets (TCGA, GSE23558, GSE30784, GSE37991, and GSE138206). Gene Set Enrichment Analysis (GSEA) was individually applied to each data set and the upregulated Hallmark molecular pathways of each data set were intersected to generate 13 common pathways including interferon-α/γ pathways. Among the 5 oral cancer data sets, 43 interferon pathway genes were commonly upregulated and 17 genes exhibited prognostic values in TCGA cohort. After validating in another oral cancer cohort (GSE65858), high expressions of C-X-C motif chemokine ligand 10 (CXCL10) and Signal transducer and activator of transcription 2 (STAT2) were confirmed to be good prognostic biomarkers. GSEA of oral cancers stratified by CXCL10/STAT2 expression showed that activation of T-cell pathways and increased tumor infiltration scores of Type 1 T helper (Th1) and CD8+ T cells were associated with high CXCL10/STAT2 expression. These results suggest that high CXCL10/STAT2 expression can predict a favorable outcome in oral cancer patients.
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13
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Tasaka K, Ueno H, Yamasaki K, Okuno T, Isobe T, Kimura S, Umeda K, Hara J, Ogawa S, Takita J. Oncogenic FGFR1 mutation and amplification in common cellular origin in a composite tumor with neuroblastoma and pheochromocytoma. Cancer Sci 2021; 113:1535-1541. [PMID: 34971484 PMCID: PMC8990717 DOI: 10.1111/cas.15260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 12/16/2021] [Accepted: 12/19/2021] [Indexed: 11/24/2022] Open
Abstract
Neuroblastoma (NB) and pheochromocytoma (PCC) are derived from neural crest cells (NCCs); however, composite tumors with NB and PCC are rare, and their underlying molecular mechanisms remain unknown. To address this issue, we performed exome and transcriptome sequencing with formalin‐fixed paraffin‐embedded (FFPE) samples from the NB, PCC, and mixed lesions in a patient with a composite tumor. Whole‐exome sequencing revealed that most mutations (80%) were shared by all samples, indicating that NB and PCC evolved from the same clone. Notably, all samples harbored both mutation and focal amplification in the FGFR1 oncogene, resulting in an extraordinarily high expression, likely to be the main driver of this tumor. Transcriptome sequencing revealed undifferentiated expression profiles for the NB lesions. Considering that a metastatic lesion was also composite, most likely, the primitive founding lesions should differentiate into both NB and PCC. This is the first reported case with composite‐NB and PCC genetically proven to harbor an oncogenic FGFR1 alteration of a common cellular origin.
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Affiliation(s)
- Keiji Tasaka
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroo Ueno
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kai Yamasaki
- Department of Pediatric Hematology and Oncology, Osaka City General Hospital
| | | | - Tomoya Isobe
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shunsuke Kimura
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Pediatrics, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima, Japan
| | - Katsutsugu Umeda
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Junichi Hara
- Cancer Consultation and Support Center, Osaka City General Hospital
| | - Seishi Ogawa
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto, Japan.,Department of Medicine, Center for Hematology and Regenerative Medicine, Karolinska Institute, Stockholm, Sweden
| | - Junko Takita
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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14
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Plasma cell-free circRNAs panel act as fingerprint predicts the occurrence of laryngeal squamous cell carcinoma. Aging (Albany NY) 2021; 13:17328-17336. [PMID: 34198263 PMCID: PMC8312444 DOI: 10.18632/aging.203215] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 06/08/2021] [Indexed: 12/19/2022]
Abstract
Background: Circular RNAs (circRNAs) have recently emerged as a new class of RNAs, highly enriched in the human tissues and very stable within cells, exosomes and body fluids. In this study, we aimed to screen the plasma cell-free derived circRNAs in laryngeal squamous cell carcinoma (LSCC) and investigate whether these circRNAs could predicted LSCC as potential biomarkers. Methods: The circRNA microarray was employed with three samples in each group to screen the dysregulated circRNAs isolated from plasma samples. The top 20 circRNAs were first selected as candidates with the upregulated level in the plasma of LSCC. Results: Further validation found that only circ_0019201, circ_0011773 and circ_0122790 was consistent with training set. The ROC curve also revealed a high diagnostic ability an area under ROC curve value (AUC) for single circRNA and combined. The AUC for circ_0019201, circ_0011773 and circ_0122790 and the combined was 0.933, 0.908, 0.965 and 0.990 in training set. For the validation set, the AUC was 0.766, 0.864, 0.908 and 0.951. The three circRNAs were further investigated with stable expression in human plasma samples. Conclusions: The plasma derived circ_0019201, circ_0011773 and circ_0122790 might be the potential biomarker for predicting the LSCC.
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