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Jeong S, González G, Ho A, Nowell N, Austin LA, Hoballah J, Mubarak F, Kapur A, Patankar MS, Cramer DW, Krauledat P, Hansen WP, Evans CL. Plasmonic Nanoparticle-Based Digital Cytometry to Quantify MUC16 Binding on the Surface of Leukocytes in Ovarian Cancer. ACS Sens 2020; 5:2772-2782. [PMID: 32847358 PMCID: PMC7871419 DOI: 10.1021/acssensors.0c00567] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Although levels of the circulating ovarian cancer marker (CA125) can distinguish ovarian masses that are likely to be malignant and correlate with severity of disease, serum CA125 has not proved useful in general population screening. Recently, cell culture studies have indicated that MUC16 may bind to the Siglec-9 receptor on natural killer (NK) cells where it downregulates the cytotoxicity of NK cells, allowing ovarian cancer cells to evade immune surveillance. We present evidence that the presence of MUC16 can be locally visualized and imaged on the surface of peripheral blood mononuclear cells (PBMCs) in ovarian cancer via a novel "digital" cytometry technique that incorporates: (i) OC125 monoclonal antibody-conjugated gold nanoparticles as optical nanoprobes, (ii) a high contrast dark-field microscopy system to detect PBMC-bound gold nanoparticles, and (iii) a computational algorithm for automatic counting of these nanoparticles to estimate the quantity of surface-bound MUC16. The quantitative detection of our technique was successfully demonstrated by discriminating clones of the ovarian cancer cell line, OVCAR3, based on low, intermediate, and high expression levels of MUC16. Additionally, PBMC surface-bound MUC16 was tracked in an ovarian cancer patient over a 17 month period; the results suggest that the binding of MUC16 on the surface of immune cells may play an early indicator for recurrent metastasis 6 months before computational tomography-based clinical diagnosis. We also demonstrate that the levels of surface-bound MUC16 on PBMCs from five ovarian cancer patients were greater than those from five healthy controls.
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Affiliation(s)
- Sinyoung Jeong
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Germán González
- PNP Research Corporation, LLC, Drury, Massachusetts 01343, United States
| | - Alexander Ho
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Nicholas Nowell
- PNP Research Corporation, LLC, Drury, Massachusetts 01343, United States
| | - Lauren A Austin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Jawad Hoballah
- PNP Research Corporation, LLC, Drury, Massachusetts 01343, United States
| | - Fatima Mubarak
- PNP Research Corporation, LLC, Drury, Massachusetts 01343, United States
| | - Arvinder Kapur
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison 53705, United States
| | - Manish S Patankar
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison 53705, United States
| | - Daniel W Cramer
- Ob/Gyn Epidemiology Center, Brigham and Women's Hospital, Boston, Massachusetts 02115, United States
- Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Petra Krauledat
- PNP Research Corporation, LLC, Drury, Massachusetts 01343, United States
| | - W Peter Hansen
- PNP Research Corporation, LLC, Drury, Massachusetts 01343, United States
| | - Conor L Evans
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States
- Ludwig Center at Harvard, Harvard Medical School, Boston, Massachusetts 02215, United States
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Wei Q, McLeod E, Qi H, Wan Z, Sun R, Ozcan A. On-chip cytometry using plasmonic nanoparticle enhanced lensfree holography. Sci Rep 2013; 3:1699. [PMID: 23608952 PMCID: PMC3632884 DOI: 10.1038/srep01699] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 04/05/2013] [Indexed: 12/21/2022] Open
Abstract
Computational microscopy tools, in particular lensfree on-chip imaging, provide a large field-of-view along with a long depth-of-field, which makes it feasible to rapidly analyze large volumes of specimen using a compact and light-weight on-chip imaging architecture. To bring molecular specificity to this high-throughput platform, here we demonstrate the use of plasmon-resonant metallic nanoparticles to automatically recognize different cell types based on their plasmon-enhanced lensfree holograms, detected and reconstructed over a large field-of-view of e.g., ~24 mm2.
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Affiliation(s)
- Qingshan Wei
- Electrical Engineering Department, University of California, Los Angeles, CA 90095, USA
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