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Zhou W, Lovasz D, Zizzo Z, He Q, Coughlan C, Kowalski RG, Kennedy PGE, Graner AN, Lillehei KO, Ormond DR, Youssef AS, Graner MW, Yu X. Phenotype and Neuronal Cytotoxic Function of Glioblastoma Extracellular Vesicles. Biomedicines 2022; 10:biomedicines10112718. [PMID: 36359238 PMCID: PMC9688005 DOI: 10.3390/biomedicines10112718] [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: 09/06/2022] [Revised: 10/21/2022] [Accepted: 10/25/2022] [Indexed: 01/07/2023] Open
Abstract
Glioblastoma (GBM) is the most aggressive and lethal form of brain tumor. Extracellular vesicles (EVs) released by tumor cells play a critical role in cellular communication in the tumor microenvironment promoting tumor progression and invasion. We hypothesized that GBM EVs possess unique characteristics which exert effects on endogenous CNS cells including neurons, producing dose-dependent neuronal cytotoxicity. We purified EVs from the plasma of 20 GBM patients, 20 meningioma patients, and 21 healthy controls, and characterized EV phenotypes by electron microscopy, nanoparticle tracking analysis, protein concentration, and proteomics. We evaluated GBM EV functions by determining their cytotoxicity in primary neurons and the neuroblastoma cell line SH-SY5Y. In addition, we determined levels of IgG antibodies in the plasma in GBM (n = 82), MMA (n = 83), and controls (non-tumor CNS disorders and healthy donors, n = 50) with capture ELISA. We discovered that GBM plasma EVs are smaller in size and had no relationship between size and concentration. Importantly, GBM EVs purified from both plasma and tumor cell lines produced IgG-mediated, complement-dependent apoptosis and necrosis in primary human neurons, mouse brain slices, and neuroblastoma cells. The unique phenotype of GBM EVs may contribute to its neuronal cytotoxicity, providing insight into its role in tumor pathogenesis.
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Affiliation(s)
- Wenbo Zhou
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (W.Z.); (D.L.); (Z.Z.); (Q.H.); (R.G.K.); (A.N.G.); (K.O.L.); (D.R.O.); (A.S.Y.); (M.W.G.)
| | - Daniel Lovasz
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (W.Z.); (D.L.); (Z.Z.); (Q.H.); (R.G.K.); (A.N.G.); (K.O.L.); (D.R.O.); (A.S.Y.); (M.W.G.)
| | - Zoë Zizzo
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (W.Z.); (D.L.); (Z.Z.); (Q.H.); (R.G.K.); (A.N.G.); (K.O.L.); (D.R.O.); (A.S.Y.); (M.W.G.)
| | - Qianbin He
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (W.Z.); (D.L.); (Z.Z.); (Q.H.); (R.G.K.); (A.N.G.); (K.O.L.); (D.R.O.); (A.S.Y.); (M.W.G.)
| | - Christina Coughlan
- Department of Neurology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA;
| | - Robert G. Kowalski
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (W.Z.); (D.L.); (Z.Z.); (Q.H.); (R.G.K.); (A.N.G.); (K.O.L.); (D.R.O.); (A.S.Y.); (M.W.G.)
| | - Peter G. E. Kennedy
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow G12 8QQ, UK;
| | - Arin N. Graner
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (W.Z.); (D.L.); (Z.Z.); (Q.H.); (R.G.K.); (A.N.G.); (K.O.L.); (D.R.O.); (A.S.Y.); (M.W.G.)
| | - Kevin O. Lillehei
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (W.Z.); (D.L.); (Z.Z.); (Q.H.); (R.G.K.); (A.N.G.); (K.O.L.); (D.R.O.); (A.S.Y.); (M.W.G.)
| | - D. Ryan Ormond
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (W.Z.); (D.L.); (Z.Z.); (Q.H.); (R.G.K.); (A.N.G.); (K.O.L.); (D.R.O.); (A.S.Y.); (M.W.G.)
| | - A. Samy Youssef
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (W.Z.); (D.L.); (Z.Z.); (Q.H.); (R.G.K.); (A.N.G.); (K.O.L.); (D.R.O.); (A.S.Y.); (M.W.G.)
| | - Michael W. Graner
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (W.Z.); (D.L.); (Z.Z.); (Q.H.); (R.G.K.); (A.N.G.); (K.O.L.); (D.R.O.); (A.S.Y.); (M.W.G.)
| | - Xiaoli Yu
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (W.Z.); (D.L.); (Z.Z.); (Q.H.); (R.G.K.); (A.N.G.); (K.O.L.); (D.R.O.); (A.S.Y.); (M.W.G.)
- Correspondence:
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Ashida S, Kondo T, Fujii C, Hamatani M, Mizuno T, Ochi H. Association of cerebrospinal inflammatory profile with radiological features in newly diagnosed treatment-naïve patients with multiple sclerosis. Front Neurol 2022; 13:1012857. [PMID: 36203996 PMCID: PMC9530286 DOI: 10.3389/fneur.2022.1012857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 09/01/2022] [Indexed: 12/05/2022] Open
Abstract
Objective Multiple sclerosis (MS) is an immune-mediated demyelinating disease of the central nervous system. Without reliable diagnostic biomarkers, the clinical and radiological heterogeneity of MS makes diagnosis difficult. Although magnetic resonance imaging (MRI) is a major diagnostic tool for MS, the association of MRI findings with the inflammatory profile in cerebrospinal fluid (CSF) has been insufficiently investigated. Therefore, we focused on CSF profile of MS patients and examined its association with MRI findings. Methods Concentrations of 26 cytokines and chemokines were determined in CSF of 28 treatment-naïve MS patients and 12 disease-control patients with aquaporin-4 antibody-seropositive neuromyelitis optica spectrum disorder (NMOSD). Results High levels of interleukin (IL)-6, IL-17A, B-cell activating factor (BAFF), a proliferation inducing ligand (APRIL), and CD40 ligand were correlated with the absence of at least one of the following three MRI findings in MS: an ovoid lesion, three or more periventricular lesions, and a nodular and/or ring-shaped contrast-enhancing lesion. The multivariate analysis revealed that elevated IL-17A was an independent predictor of absence of ovoid lesion and periventricular lesions less than three. MS patients were classified into a group with all three MRI findings (MS-full) and a group with less than three (MS-partial). The discriminant analysis model distinguished three groups: MS-full, MS-partial, and NMOSD, with 98% accuracy. Conclusion The CSF inflammatory profile was associated with radiological findings of treatment-naïve MS. This result indicates the possible utility of combined CSF and MRI profiling in identifying different MS phenotypes related to the heterogeneity of underlying immune processes.
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Affiliation(s)
- Shinji Ashida
- Department of Neurology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takayuki Kondo
- Department of Neurology, Kansai Medical University Medical Center, Osaka, Japan
| | - Chihiro Fujii
- Department of Neurology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Mio Hamatani
- Department of Neurology, Kansai Medical University Medical Center, Osaka, Japan
- Institute for the Advanced Study of Human Biology, Kyoto University, Kyoto, Japan
| | - Toshiki Mizuno
- Department of Neurology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hirofumi Ochi
- Department of Intractable Disease and Aging Science, Ehime University Graduate School of Medicine, Toon, Japan
- *Correspondence: Hirofumi Ochi
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Leffler J, Trend S, Gorman S, Hart PH. Sex-Specific Environmental Impacts on Initiation and Progression of Multiple Sclerosis. Front Neurol 2022; 13:835162. [PMID: 35185777 PMCID: PMC8850837 DOI: 10.3389/fneur.2022.835162] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 01/12/2022] [Indexed: 12/28/2022] Open
Abstract
The immunological mechanisms that contribute to multiple sclerosis (MS) differ between males and females. Females are 2–3 times more likely to develop MS compared to males, however the reason for this discrepancy is unknown. Once MS is established, there is a more inflammatory yet milder form of disease in females whereas males generally suffer from more severe disease and faster progression, neural degradation, and disability. Some of these differences relate to genetics, including genetic control of immune regulatory genes on the X-chromosome, as well as immune modulatory properties of sex hormones. Differences in MS development may also relate to how sex interacts with environmental risk factors. There are several environmental risk factors for MS including late-onset Epstein Barr virus infection, low serum vitamin D levels, low UV radiation exposure, smoking, obesity, and lack of physical activity. Most of these risk factors impact males and females differently, either due to biological or immunological processes or through behavioral differences. In this review, we explore these differences further and focus on how the interaction of environmental risk factors with sex hormones may contribute to significantly different prevalence and pathology of MS in males and females.
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Affiliation(s)
- Jonatan Leffler
- Telethon Kids Institute, University of Western Australia, Nedlands, WA, Australia
- *Correspondence: Jonatan Leffler
| | - Stephanie Trend
- Telethon Kids Institute, University of Western Australia, Nedlands, WA, Australia
- Centre for Neuromuscular and Neurological Disorders, Perron Institute for Neurological and Translational Science, University of Western Australia, Perth, WA, Australia
| | - Shelley Gorman
- Telethon Kids Institute, University of Western Australia, Nedlands, WA, Australia
| | - Prue H. Hart
- Telethon Kids Institute, University of Western Australia, Nedlands, WA, Australia
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