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Sirivolu S, Peng CC, Neviani P, Xu BY, Berry JL, Xu L. Comparative Single Vesicle Analysis of Aqueous Humor Extracellular Vesicles before and after Radiation in Uveal Melanoma Eyes. Int J Mol Sci 2024; 25:6035. [PMID: 38892225 PMCID: PMC11172950 DOI: 10.3390/ijms25116035] [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] [Received: 04/10/2024] [Revised: 05/26/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
Small extracellular vesicles (sEVs) have been shown to promote tumorigenesis, treatment resistance, and metastasis in multiple cancer types; however, sEVs in the aqueous humor (AH) of uveal melanoma (UM) patients have never previously been profiled. In this study, we used single particle analysis to characterize sEV subpopulations in the AH of UM patients by quantifying their size, concentration, and phenotypes based on cell surface markers, specifically the tetraspanin co-expression patterns of CD9, CD63, and CD81. sEVs were analyzed from paired pre- and post-treatment (brachytherapy, a form of radiation) AH samples collected from 19 UM patients. In post-brachytherapy samples, two subpopulations, CD63/81+ and CD9/63/81+ sEVs, were significantly increased. These trends existed even when stratified by tumor location and GEP class 1 and class 2 (albeit not significant for GEP class 2). In this initial report of single vesicle profiling of sEVs in the AH of UM patients, we demonstrated that sEVs can be detected in the AH. We further identified two subpopulations that were increased post-brachytherapy, which may suggest radiation-induced release of these particles, potentially from tumor cells. Further study of the cargo carried by these sEV subpopulations may uncover important biomarkers and insights into tumorigenesis for UM.
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Affiliation(s)
- Shreya Sirivolu
- The Vision Center at Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (S.S.); (C.-C.P.)
- USC Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Chen-Ching Peng
- The Vision Center at Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (S.S.); (C.-C.P.)
- USC Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Paolo Neviani
- Extracellular Vesicle Core, Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA
| | - Benjamin Y. Xu
- USC Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Jesse L. Berry
- The Vision Center at Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (S.S.); (C.-C.P.)
- USC Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- The Saban Research Institute, Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Liya Xu
- The Vision Center at Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (S.S.); (C.-C.P.)
- USC Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
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Hashemi S, Aghamiri SMR, Siavashpour Z, Kahani M, Zaidi H, Jaberi R. Hydrogen nanobubbles: A novel approach toward radio-sensitization agents. Med Phys 2023; 50:6589-6599. [PMID: 37278345 DOI: 10.1002/mp.16521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 04/23/2023] [Accepted: 04/28/2023] [Indexed: 06/07/2023] Open
Abstract
BACKGROUND Ocular melanoma is a rare kind of eye malignancy that threatens the patient's eyesight. Radiotherapy and surgical removal are the most commonly used therapeutic modalities, and nanomedicine has lately entered this field. Brachytherapy using Ruthenium-106 (106 Ru) ophthalmic plaques has been used for decades to treat ocular melanoma, with the applicator placed on the patient's eyes until the prescribed dose reaches the tumor apex. PURPOSE To investigate the efficiency of hydrogen nanobubbles (H2 -NBs) employment during intraocular melanoma brachytherapy using a 106 Ru electron emitter plaque. METHODS The Monte Carlo (MC) simulation and experimental investigation using a 3D-designed phantom and thermoluminescence dosimetry (TLD) were employed. Various concentrations of H2 -NBs with a diameter of 100 nm were simulated inside tumor tissue. The results were presented as deposited energy and dose enhancement factor (DEF). An equivalent Resin phantom of the human eyeball was made using AutoCAD and 3D-Printer technologies. The glass-bead TLDs dosimeter were employed and placed inside the phantom. RESULTS Using a 1% concentration of H2 -NBs, a DEF of 93% and 98% were achieved at the tumor apex of 10 mm from the experimental setup and MC simulation, respectively. For simulated concentrations of 0.1%, 0.3%, 0.5%, 1%, and 4% H2 -NBs, a maximum dose enhancement of 154%, 174%, 188%, 200%, and 300% were achieved, respectively, and a dose reduction was seen at about 3 mm from the plaque surface. CONCLUSION H2 -NBs can be used as an absorbed dose enhancer in 106 Ru eye brachytherapy because of their unique physical characteristics. Reducing plaque implantation time on the patient's eye, reducing sclera absorbed dose, and decreasing the risk of patients' healthy organs irradiation are reported as some of the potential benefits of using H2-NBs.
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Affiliation(s)
- Samaneh Hashemi
- Medical Radiation Department, Shahid Beheshti University, Tehran, Iran
| | | | - Zahra Siavashpour
- Radiotherapy Oncology Department, Shohada Tajrish Educational Hospital, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Mahdi Kahani
- Medical Radiation Department, Shahid Beheshti University, Tehran, Iran
| | - Habib Zaidi
- Geneva University Neurocenter, Geneva University, Geneva, Switzerland
| | - Ramin Jaberi
- Cancer Institute, Tehran University of Medical Science, Tehran, Iran
- Medical Physics Department, Surrey University, Guildford, UK
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Im DH, Peng CC, Xu L, Kim ME, Ostrow D, Yellapantula V, Bootwalla M, Biegel JA, Gai X, Prabakar RK, Kuhn P, Hicks J, Berry JL. Potential of Aqueous Humor as a Liquid Biopsy for Uveal Melanoma. Int J Mol Sci 2022; 23:ijms23116226. [PMID: 35682905 PMCID: PMC9181140 DOI: 10.3390/ijms23116226] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 05/27/2022] [Accepted: 05/30/2022] [Indexed: 12/10/2022] Open
Abstract
Tumor biopsy can identify prognostic biomarkers for metastatic uveal melanoma (UM), however aqueous humor (AH) liquid biopsy may serve as an adjunct. This study investigated whether the AH of UM eyes has sufficient circulating tumor DNA (ctDNA) to perform genetic analysis. This is a case series of 37 AH samples, taken before or after radiation, and one tumor wash sample, from 12 choroidal and 8 ciliary body (CB) melanoma eyes. AH was analyzed for nucleic acid concentrations. AH DNA and one tumor wash sample underwent shallow whole-genome sequencing followed by Illumina sequencing to detect somatic copy number alterations (SCNAs). Four post-radiation AH underwent targeted sequencing of BAP1 and GNAQ genes. Post-radiation AH had significantly higher DNA and miRNA concentrations than paired pre-radiation samples. Highly recurrent UM SCNAs were identified in 0/11 post-radiation choroidal and 6/8 post-radiation CB AH. SCNAs were highly concordant in a CB post-radiation AH with its matched tumor (r = 0.978). BAP1 or GNAQ variants were detected in 3/4 post-radiation AH samples. AH is a source of ctDNA in UM eyes, particularly in post-radiation CB eyes. For the first time, UM SCNAs and mutations were identified in AH-derived ctDNA. Suggesting that AH can serve as a liquid biopsy for UM.
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Affiliation(s)
- Deborah H. Im
- The Vision Center at Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (D.H.I.); (C.-C.P.); (L.X.); (M.E.K.)
- USC Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Chen-Ching Peng
- The Vision Center at Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (D.H.I.); (C.-C.P.); (L.X.); (M.E.K.)
- USC Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Liya Xu
- The Vision Center at Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (D.H.I.); (C.-C.P.); (L.X.); (M.E.K.)
- USC Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Mary E. Kim
- The Vision Center at Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (D.H.I.); (C.-C.P.); (L.X.); (M.E.K.)
- USC Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Dejerianne Ostrow
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (D.O.); (V.Y.); (M.B.); (J.A.B.); (X.G.)
| | - Venkata Yellapantula
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (D.O.); (V.Y.); (M.B.); (J.A.B.); (X.G.)
- Department of Pathology and Laboratory Medicine, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
| | - Moiz Bootwalla
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (D.O.); (V.Y.); (M.B.); (J.A.B.); (X.G.)
- Department of Pathology and Laboratory Medicine, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
| | - Jaclyn A. Biegel
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (D.O.); (V.Y.); (M.B.); (J.A.B.); (X.G.)
- Department of Pathology and Laboratory Medicine, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
| | - Xiaowu Gai
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (D.O.); (V.Y.); (M.B.); (J.A.B.); (X.G.)
- Department of Pathology and Laboratory Medicine, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
| | - Rishvanth K. Prabakar
- Department of Biological Sciences, Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, CA 90007, USA; (R.K.P.); (P.K.); (J.H.)
| | - Peter Kuhn
- Department of Biological Sciences, Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, CA 90007, USA; (R.K.P.); (P.K.); (J.H.)
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Department of Aerospace and Mechanical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90007, USA
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90007, USA
| | - James Hicks
- Department of Biological Sciences, Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, CA 90007, USA; (R.K.P.); (P.K.); (J.H.)
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Department of Biochemistry and Molecular Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Jesse L. Berry
- The Vision Center at Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (D.H.I.); (C.-C.P.); (L.X.); (M.E.K.)
- USC Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- The Saban Research Institute, Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA
- Correspondence:
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