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Gustafson KT, Sayar Z, Modestino A, Le HH, Gower A, Civitci F, Esener SC, Heller MJ, Eksi SE. Oligo cyc-DEP: On-chip cyclic immunofluorescence profiling of cell-derived nanoparticles. Electrophoresis 2024. [PMID: 39049673 DOI: 10.1002/elps.202400088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 06/29/2024] [Accepted: 07/10/2024] [Indexed: 07/27/2024]
Abstract
We present a follow-on technique for the cyclic-immunofluorescence profiling of suspension particles isolated using dielectrophoresis. The original lab-on-chip technique ("cyc-DEP" [cyclic immunofluorescent imaging on dielectrophoretic chip]) was designed for the multiplex surveillance of circulating biomarkers. Nanoparticles were collected from low-volume liquid biopsies using microfluidic dielectrophoretic chip technology. Subsequent rounds of cyclic immunofluorescent labeling and quenching were imaged and quantified with a custom algorithm to detect multiple proteins. While cyc-DEP improved assay multiplicity, long runtimes threatened its clinical adoption. Here, we modify the original cyc-DEP platform to reduce assay runtimes. Nanoparticles were formulated from human prostate adenocarcinoma cells and collected using dielectrophoresis. Three proteins were labeled on-chip with a mixture of short oligonucleotide-conjugated antibodies. The sample was then incubated with complementary fluorophore-conjugated oligonucleotides, which were dehybridized using an ethylene carbonate buffer after each round of imaging. Oligonucleotide removal exhibited an average quenching efficiency of 98 ± 3% (n = 12 quenching events), matching the original cyc-DEP platform. The presented "oligo cyc-DEP" platform achieved clinically relevant sample-to-answer times, reducing the duration for three rounds of cyclic immunolabeling from approximately 20 to 6.5 h-a 67% decrease attributed to rapid fluorophore removal and the consolidated co-incubation of antibodies.
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Affiliation(s)
- Kyle T Gustafson
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon, USA
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, Oregon, USA
| | - Zeynep Sayar
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon, USA
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, Oregon, USA
| | - Augusta Modestino
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon, USA
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, Oregon, USA
| | - Hillary H Le
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon, USA
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, Oregon, USA
| | - Austin Gower
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Fehmi Civitci
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Sadik C Esener
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon, USA
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, Oregon, USA
| | - Michael J Heller
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Sebnem Ece Eksi
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon, USA
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, Oregon, USA
- Division of Oncological Sciences, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon, USA
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Anderson AN, Conley P, Klocke CD, Sengupta SK, Pang A, Farley HC, Gillingham AR, Dawson AD, Fan Y, Jones JA, Gibbs SL, Skalet AH, Wu G, Wong MH. Detection of neoplastic-immune hybrid cells with metastatic properties in uveal melanoma. Biomark Res 2024; 12:67. [PMID: 39030653 PMCID: PMC11264923 DOI: 10.1186/s40364-024-00609-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 06/18/2024] [Indexed: 07/21/2024] Open
Abstract
BACKGROUND Uveal melanoma is the most common non-cutaneous melanoma and is an intraocular malignancy affecting nearly 7,000 individuals per year worldwide. Of these, approximately 50% will progress to metastatic disease for which there are currently no effective curative therapies. Despite advances in molecular profiling and metastatic stratification of uveal melanoma tumors, little is known regarding their underlying biology of metastasis. Our group has identified a disseminated neoplastic cell population characterized by co-expression of immune and melanoma proteins, circulating hybrid cells (hybrids), in patients with uveal melanoma. Compared to circulating tumor cells, which lack expression of immune proteins, hybrids are detected at an increased prevalence in peripheral blood and can be used as a non-invasive biomarker to predict metastatic progression. METHODS To ascertain mechanisms underlying enhanced hybrid cell dissemination we identified hybrid cells within primary uveal melanoma tumors using single cell RNA sequencing (n = 8) and evaluated their gene expression and predicted ligand-receptor interactions in relation to other melanoma and immune cells within the primary tumor. We then verified expression of upregulated hybrid pathways within patient-matched tumor and peripheral blood hybrids (n = 4) using cyclic immunofluorescence and quantified their protein expression relative to other non-hybrid tumor and disseminated tumor cells. RESULTS Among the top upregulated genes and pathways in hybrid cells were those involved in enhanced cell motility and cytoskeletal rearrangement, immune evasion, and altered cellular metabolism. In patient-matched tumor and peripheral blood, we verified gene expression by examining concordant protein expression for each pathway category: TMSB10 (cell motility), CD74 (immune evasion) and GPX1 (metabolism). Both TMSB10 and GPX1 were expressed on significantly higher numbers of disseminated hybrid cells compared to circulating tumor cells, and CD74 and GPX1 were expressed on more disseminated hybrids than tumor-resident hybrids. Lastly, we identified that hybrid cells express ligand-receptor signaling pathways implicated in promoting metastasis including GAS6-AXL, CXCL12-CXCR4, LGALS9-P4HB and IGF1-IGFR1. CONCLUSION These findings highlight the importance of TMSB10, GPX1 and CD74 for successful hybrid cell dissemination and survival in circulation. Our results contribute to the understanding of uveal melanoma tumor progression and interactions between tumor cells and immune cells in the tumor microenvironment that may promote metastasis.
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Affiliation(s)
- Ashley N Anderson
- Department of Cell, Developmental and Cancer Biology, Oregon Health and Science University (OHSU), Portland, OR, USA
| | - Patrick Conley
- Department of Medical Informatics and Clinical Epidemiology, OHSU, Portland, OR, USA
| | - Christopher D Klocke
- Department of Medical Informatics and Clinical Epidemiology, OHSU, Portland, OR, USA
| | - Sidharth K Sengupta
- Department of Cell, Developmental and Cancer Biology, Oregon Health and Science University (OHSU), Portland, OR, USA
| | - Amara Pang
- Department of Cell, Developmental and Cancer Biology, Oregon Health and Science University (OHSU), Portland, OR, USA
| | - Hannah C Farley
- Department of Cell, Developmental and Cancer Biology, Oregon Health and Science University (OHSU), Portland, OR, USA
- Department of Biomedical Engineering, OHSU, Portland, OR, USA
| | - Abigail R Gillingham
- Department of Cell, Developmental and Cancer Biology, Oregon Health and Science University (OHSU), Portland, OR, USA
| | - Aubrey D Dawson
- Department of Cell, Developmental and Cancer Biology, Oregon Health and Science University (OHSU), Portland, OR, USA
| | - Yichen Fan
- Department of Cell, Developmental and Cancer Biology, Oregon Health and Science University (OHSU), Portland, OR, USA
| | - Jocelyn A Jones
- Department of Biomedical Engineering, OHSU, Portland, OR, USA
| | - Summer L Gibbs
- Department of Biomedical Engineering, OHSU, Portland, OR, USA
- Knight Cancer Institute, OHSU, Portland, OR, USA
| | - Alison H Skalet
- Casey Eye Institute, OHSU, Portland, OR, USA
- Knight Cancer Institute, OHSU, Portland, OR, USA
| | - Guanming Wu
- Department of Medical Informatics and Clinical Epidemiology, OHSU, Portland, OR, USA
- Knight Cancer Institute, OHSU, Portland, OR, USA
| | - Melissa H Wong
- Department of Cell, Developmental and Cancer Biology, Oregon Health and Science University (OHSU), Portland, OR, USA.
- Knight Cancer Institute, OHSU, Portland, OR, USA.
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Reiber T, Dose C, Yushchenko DA. A novel dual-release scaffold for fluorescent labels improves cyclic immunofluorescence. RSC Chem Biol 2024; 5:684-690. [PMID: 38966675 PMCID: PMC11221530 DOI: 10.1039/d4cb00007b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 05/22/2024] [Indexed: 07/06/2024] Open
Abstract
Cyclic immunofluorescence is a powerful method to generate high-content imaging datasets for investigating cell biology and developing therapies. This method relies on fluorescent labels that determine the quality of immunofluorescence and the maximum number of staining cycles that can be performed. Here we present a novel fluorescent labelling strategy, based on antibodies conjugated to a scaffold containing two distinct sites for enzymatic cleavage of fluorophores. The scaffold is composed of a dextran decorated with short ssDNA that upon hybridization with complementary dye-modified oligos result in fluorescent molecules. The developed fluorescent labels exhibit specific staining and remarkable brightness in flow cytometry and fluorescence microscopy. We showed that the combination of DNase-mediated degradation of DNA and dextranse-mediated degradation of the dextran as two complementary enzymatic release mechanisms in one molecule, improves signal erasure from labelled epitopes. We envision that such dual-release labels with high brightness and efficient and specific erasure will advance multiplexed cyclic immunofluorescence approaches and thereby will contribute to gaining new insights in cell biology.
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Affiliation(s)
- Thorge Reiber
- Department of Chemical Biology, Miltenyi Biotec GmbH Friedrich-Ebert Straße 68 Bergisch Gladbach 51429 Germany
- Department of Chemistry, Humboldt-Universität zu Berlin Brook-Taylor-Str. 2 Berlin 12489 Germany
| | - Christian Dose
- Department of Chemical Biology, Miltenyi Biotec GmbH Friedrich-Ebert Straße 68 Bergisch Gladbach 51429 Germany
| | - Dmytro A Yushchenko
- Department of Chemical Biology, Miltenyi Biotec GmbH Friedrich-Ebert Straße 68 Bergisch Gladbach 51429 Germany
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Whalen RM, Anderson AN, Jones JA, Sims Z, Chang YH, Nederlof MA, Wong MH, Gibbs SL. Ultra high content analyses of circulating and tumor associated hybrid cells reveal phenotypic heterogeneity. Sci Rep 2024; 14:7350. [PMID: 38538742 PMCID: PMC10973471 DOI: 10.1038/s41598-024-57381-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 03/18/2024] [Indexed: 07/03/2024] Open
Abstract
Persistently high, worldwide mortality from cancer highlights the unresolved challenges of disease surveillance and detection that impact survival. Development of a non-invasive, blood-based biomarker would transform survival from cancer. We demonstrate the functionality of ultra-high content analyses of a newly identified population of tumor cells that are hybrids between neoplastic and immune cells in patient matched tumor and peripheral blood specimens. Using oligonucleotide conjugated antibodies (Ab-oligo) permitting cyclic immunofluorescence (cyCIF), we present analyses of phenotypes among tumor and peripheral blood hybrid cells. Interestingly, the majority of circulating hybrid cell (CHC) subpopulations were not identified in tumor-associated hybrids. These results highlight the efficacy of ultra-high content phenotypic analyses using Ab-oligo based cyCIF applied to both tumor and peripheral blood specimens. The combination of a multiplex phenotypic profiling platform that is gentle enough to analyze blood to detect and evaluate disseminated tumor cells represents a novel approach to exploring novel tumor biology and potential utility for developing the population as a blood-based biomarker in cancer.
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Affiliation(s)
- Riley M Whalen
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University (OHSU), Portland, OR, 97201, USA
| | - Ashley N Anderson
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University (OHSU), Portland, OR, 97201, USA
| | - Jocelyn A Jones
- Department of Biomedical Engineering, OHSU, Portland, OR, 97201, USA
| | - Zachary Sims
- Department of Biomedical Engineering, OHSU, Portland, OR, 97201, USA
| | - Young Hwan Chang
- Department of Biomedical Engineering, OHSU, Portland, OR, 97201, USA
- Knight Cancer Institute, OHSU, Portland, OR, 97201, USA
| | | | - Melissa H Wong
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University (OHSU), Portland, OR, 97201, USA.
- Knight Cancer Institute, OHSU, Portland, OR, 97201, USA.
| | - Summer L Gibbs
- Department of Biomedical Engineering, OHSU, Portland, OR, 97201, USA.
- Knight Cancer Institute, OHSU, Portland, OR, 97201, USA.
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Chen E, Ling AL, Reardon DA, Chiocca EA. Lessons learned from phase 3 trials of immunotherapy for glioblastoma: Time for longitudinal sampling? Neuro Oncol 2024; 26:211-225. [PMID: 37995317 PMCID: PMC10836778 DOI: 10.1093/neuonc/noad211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023] Open
Abstract
Glioblastoma (GBM)'s median overall survival is almost 21 months. Six phase 3 immunotherapy clinical trials have recently been published, yet 5/6 did not meet approval by regulatory bodies. For the sixth, approval is uncertain. Trial failures result from multiple factors, ranging from intrinsic tumor biology to clinical trial design. Understanding the clinical and basic science of these 6 trials is compelled by other immunotherapies reaching the point of advanced phase 3 clinical trial testing. We need to understand more of the science in human GBMs in early trials: the "window of opportunity" design may not be best to understand complex changes brought about by immunotherapeutic perturbations of the GBM microenvironment. The convergence of increased safety of image-guided biopsies with "multi-omics" of small cell numbers now permits longitudinal sampling of tumor and biofluids to dissect the complex temporal changes in the GBM microenvironment as a function of the immunotherapy.
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Affiliation(s)
- Ethan Chen
- Department of Neurosurgery, Brigham and Women’s Hospital, Boston, Massachusetts, USA
| | - Alexander L Ling
- Department of Neurosurgery, Brigham and Women’s Hospital, Boston, Massachusetts, USA
| | - David A Reardon
- Center for Neuro-Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - E Antonio Chiocca
- Department of Neurosurgery, Brigham and Women’s Hospital, Boston, Massachusetts, USA
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Anderson AN, Conley P, Klocke CD, Sengupta SK, Pang A, Farley HC, Gillingham AR, Dawson AD, Fan Y, Jones JA, Gibbs SL, Skalet AH, Wu G, Wong MH. Detection of neoplastic-immune hybrid cells with metastatic properties in uveal melanoma. RESEARCH SQUARE 2023:rs.3.rs-3694879. [PMID: 38106024 PMCID: PMC10723549 DOI: 10.21203/rs.3.rs-3694879/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Background Uveal melanoma is the most common non-cutaneous melanoma and is an intraocular malignancy affecting nearly 7,000 individuals per year worldwide. Of these, approximately 50% will progress to metastatic disease for which there are currently no effective therapies. Despite advances in molecular profiling and metastatic stratification of uveal melanoma tumors, little is known regarding their underlying biology of metastasis. Our group has identified a disseminated neoplastic cell population characterized by co-expression of immune and melanoma proteins, circulating hybrid cells (hybrids), in patients with uveal melanoma. Compared to circulating tumor cells, which lack expression of immune proteins, hybrids are detected at an increased prevalence in peripheral blood and can be used as a non-invasive biomarker to predict metastatic progression. Methods To ascertain mechanisms underlying enhanced hybrid cell dissemination we identified hybrid cells within primary uveal melanoma tumors using single cell RNA sequencing and evaluated their gene expression and predicted ligand-receptor interactions in relation to other melanoma and immune cells within the primary tumor. We then verified expression of upregulated hybrid pathways within patient-matched tumor and peripheral blood hybrids using cyclic immunofluorescence and quantified their protein expression relative to other non-hybrid tumor and disseminated tumor cells. Results Among the top upregulated genes and pathways in hybrid cells were those involved in enhanced cell motility and cytoskeletal rearrangement, immune evasion, and altered cellular metabolism. In patient-matched tumor and peripheral blood, we verified gene expression by examining concordant protein expression for each pathway category: TMSB10 (cell motility), CD74 (immune evasion) and GPX1 (metabolism). Both TMSB10 and GPX1 were expressed on significantly higher numbers of disseminated hybrid cells compared to circulating tumor cells, and CD74 and GPX1 were expressed on more disseminated hybrids than tumor-resident hybrids. Lastly, we identified that hybrid cells express ligand-receptor signaling pathways implicated in promoting metastasis including GAS6-AXL, CXCL12-CXCR4, LGALS9-P4HB and IGF1-IGFR1. Conclusion These findings highlight the importance of TMSB10, GPX1 and CD74 for successful hybrid cell dissemination and survival in circulation. Our results contribute to the understanding of uveal melanoma tumor progression and interactions between tumor cells and immune cells in the tumor microenvironment that may promote metastasis.
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Anderson AN, Conley P, Klocke CD, Sengupta SK, Robinson TL, Fan Y, Jones JA, Gibbs SL, Skalet AH, Wu G, Wong MH. Analysis of uveal melanoma scRNA sequencing data identifies neoplastic-immune hybrid cells that exhibit metastatic potential. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.24.563815. [PMID: 37961378 PMCID: PMC10634980 DOI: 10.1101/2023.10.24.563815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Uveal melanoma (UM) is the most common non-cutaneous melanoma and is an intraocular malignancy that affects nearly 7,000 individuals per year worldwide. Of these, nearly 50% will progress to metastatic disease for which there are currently no effective therapies. Despite advances in the molecular profiling and metastatic stratification of class 1 and 2 UM tumors, little is known regarding the underlying biology of UM metastasis. Our group has identified a disseminated tumor cell population characterized by co-expression of immune and melanoma proteins, (circulating hybrid cells (CHCs), in patients with UM. Compared to circulating tumor cells, CHCs are detected at an increased prevalence in peripheral blood and can be used as a non-invasive biomarker to predict metastatic progression. To identify mechanisms underlying enhanced hybrid cell dissemination we sought to identify hybrid cells within a primary UM single cell RNA-seq dataset. Using rigorous doublet discrimination approaches, we identified UM hybrids and evaluated their gene expression, predicted ligand-receptor status, and cell-cell communication state in relation to other melanoma and immune cells within the primary tumor. We identified several genes and pathways upregulated in hybrid cells, including those involved in enhancing cell motility and cytoskeleton rearrangement, evading immune detection, and altering cellular metabolism. In addition, we identified that hybrid cells express ligand-receptor signaling pathways implicated in promoting cancer metastasis including IGF1-IGFR1, GAS6-AXL, LGALS9-P4HB, APP-CD74 and CXCL12-CXCR4. These results contribute to our understanding of tumor progression and interactions between tumor cells and immune cells in the UM microenvironment that may promote metastasis.
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