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Althobity AA, Khan N, Sandrock CJ, Woodruff TM, Cowin GJ, Brereton IM, Kurniawan ND. Multiparametric magnetic resonance imaging for detection of pathological changes in the central nervous system of a mouse model of multiple sclerosis in vivo. NMR Biomed 2023; 36:e4964. [PMID: 37122101 PMCID: PMC10909458 DOI: 10.1002/nbm.4964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 03/28/2023] [Accepted: 04/26/2023] [Indexed: 05/19/2023]
Abstract
Multiple sclerosis (MS) is an autoimmune disease involving demyelination and axonal damage in the central nervous system (CNS). In this study, we investigated pathological changes in the lumbar spinal cord of C57BL/6 mice induced with progressive experimental autoimmune encephalomyelitis (EAE) disease using 9.4-T magnetic resonance imaging (MRI). Multiparametric MRI measurements including MR spectroscopy, diffusion tensor imaging (DTI) and volumetric analyses were applied to detect metabolic changes in the CNS of EAE mice. Compared with healthy mice, EAE mice showed a significant reduction in N-acetyl aspartate and increases in choline, glycine, taurine and lactate. DTI revealed a significant reduction in fractional anisotropy and axial diffusivity and an increase in radial diffusivity in the lumbar spinal cord white matter (WM), while in the grey matter (GM), fractional anisotropy increased. High-resolution structural imaging also revealed lumbar spinal cord WM hypertrophy and GM atrophy. Importantly, these MRI changes were strongly correlated with EAE disease scoring and pathological changes in the lumbar (L2-L6), particularly WM demyelination lesions and aggregation of immune cells (microglia/macrophages and astrocytes) in this region. This study identified changes in MRI biomarker signatures that can be useful for evaluating the efficacy of novel drugs using EAE models in vivo.
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Affiliation(s)
- Abdullah A. Althobity
- Centre for Advanced ImagingThe University of QueenslandBrisbaneAustralia
- Al Azhar HospitalRiyadhSaudi Arabia
- Society of Artificial Intelligence in HealthcareRiyadhSaudi Arabia
- Department of Radiological Sciences and Medical Imaging, College of Applied Medical SciencesMajmaah UniversityMajmaahSaudi Arabia
| | - Nemat Khan
- Faculty of Medicine, School of Biomedical SciencesThe University of QueenslandBrisbaneAustralia
| | - Cheyenne J. Sandrock
- Faculty of Medicine, School of Biomedical SciencesThe University of QueenslandBrisbaneAustralia
| | - Trent M. Woodruff
- Faculty of Medicine, School of Biomedical SciencesThe University of QueenslandBrisbaneAustralia
- Queensland Brain InstituteThe University of QueenslandBrisbaneAustralia
| | - Gary J. Cowin
- Centre for Advanced ImagingThe University of QueenslandBrisbaneAustralia
- NCRIS Australian National Imaging FacilityThe University of QueenslandBrisbaneAustralia
| | - Ian M. Brereton
- Centre for Advanced ImagingThe University of QueenslandBrisbaneAustralia
- NCRIS Australian National Imaging FacilityThe University of QueenslandBrisbaneAustralia
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Millard SM, Heng O, Opperman KS, Sehgal A, Irvine KM, Kaur S, Sandrock CJ, Wu AC, Magor GW, Batoon L, Perkins AC, Noll JE, Zannettino ACW, Sester DP, Levesque JP, Hume DA, Raggatt LJ, Summers KM, Pettit AR. Fragmentation of tissue-resident macrophages during isolation confounds analysis of single-cell preparations from mouse hematopoietic tissues. Cell Rep 2021; 37:110058. [PMID: 34818538 DOI: 10.1016/j.celrep.2021.110058] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 09/28/2021] [Accepted: 11/03/2021] [Indexed: 12/18/2022] Open
Abstract
Mouse hematopoietic tissues contain abundant tissue-resident macrophages that support immunity, hematopoiesis, and bone homeostasis. A systematic strategy to characterize macrophage subsets in mouse bone marrow (BM), spleen, and lymph node unexpectedly reveals that macrophage surface marker staining emanates from membrane-bound subcellular remnants associated with unrelated cells. Intact macrophages are not present within these cell preparations. The macrophage remnant binding profile reflects interactions between macrophages and other cell types in vivo. Depletion of CD169+ macrophages in vivo eliminates F4/80+ remnant attachment. Remnant-restricted macrophage-specific membrane markers, cytoplasmic fluorescent reporters, and mRNA are all detected in non-macrophage cells including isolated stem and progenitor cells. Analysis of RNA sequencing (RNA-seq) data, including publicly available datasets, indicates that macrophage fragmentation is a general phenomenon that confounds bulk and single-cell analysis of disaggregated hematopoietic tissues. Hematopoietic tissue macrophage fragmentation undermines the accuracy of macrophage ex vivo molecular profiling and creates opportunity for misattribution of macrophage-expressed genes to non-macrophage cells.
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Affiliation(s)
- Susan M Millard
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia
| | - Ostyn Heng
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia
| | - Khatora S Opperman
- Myeloma Research Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, North Terrace, Adelaide, SA 5005, Australia; South Australian Health and Medical Research Institute, PO Box 11060, Adelaide, SA 5001, Australia
| | - Anuj Sehgal
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia
| | - Katharine M Irvine
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia
| | - Simranpreet Kaur
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia; The University of Queensland, UQ Diamantina Institute, Brisbane, QLD 4102, Australia
| | - Cheyenne J Sandrock
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia
| | - Andy C Wu
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia; TRI Flow Cytometry Suite, Translational Research Institute, Woolloongabba, QLD 4102, Australia
| | - Graham W Magor
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia; Australian Centre for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia
| | - Lena Batoon
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia
| | - Andrew C Perkins
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia; Australian Centre for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia
| | - Jacqueline E Noll
- Myeloma Research Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, North Terrace, Adelaide, SA 5005, Australia; South Australian Health and Medical Research Institute, PO Box 11060, Adelaide, SA 5001, Australia
| | - Andrew C W Zannettino
- Myeloma Research Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, North Terrace, Adelaide, SA 5005, Australia; South Australian Health and Medical Research Institute, PO Box 11060, Adelaide, SA 5001, Australia; Central Adelaide Local Health Network, Adelaide, SA 5001, Australia
| | - David P Sester
- TRI Flow Cytometry Suite, Translational Research Institute, Woolloongabba, QLD 4102, Australia
| | - Jean-Pierre Levesque
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia
| | - David A Hume
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia
| | - Liza J Raggatt
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia
| | - Kim M Summers
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia
| | - Allison R Pettit
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia.
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Starobova H, Monteleone M, Adolphe C, Batoon L, Sandrock CJ, Tay B, Deuis JR, Smith AV, Mueller A, Nadar EI, Lawrence GP, Mayor A, Tolson E, Levesque JP, Pettit AR, Wainwright BJ, Schroder K, Vetter I. Vincristine-induced peripheral neuropathy is driven by canonical NLRP3 activation and IL-1β release. J Exp Med 2021; 218:e20201452. [PMID: 33656514 PMCID: PMC7933984 DOI: 10.1084/jem.20201452] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 12/09/2020] [Accepted: 01/19/2021] [Indexed: 12/29/2022] Open
Abstract
Vincristine is an important component of many regimens used for pediatric and adult malignancies, but it causes a dose-limiting sensorimotor neuropathy for which there is no effective treatment. This study aimed to delineate the neuro-inflammatory mechanisms contributing to the development of mechanical allodynia and gait disturbances in a murine model of vincristine-induced neuropathy, as well as to identify novel treatment approaches. Here, we show that vincristine-induced peripheral neuropathy is driven by activation of the NLRP3 inflammasome and subsequent release of interleukin-1β from macrophages, with mechanical allodynia and gait disturbances significantly reduced in knockout mice lacking NLRP3 signaling pathway components, or after treatment with the NLRP3 inhibitor MCC950. Moreover, treatment with the IL-1 receptor antagonist anakinra prevented the development of vincristine-induced neuropathy without adversely affecting chemotherapy efficacy or tumor progression in patient-derived medulloblastoma xenograph models. These results detail the neuro-inflammatory mechanisms leading to vincristine-induced peripheral neuropathy and suggest that repurposing anakinra may be an effective co-treatment strategy to prevent vincristine-induced peripheral neuropathy.
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Affiliation(s)
- Hana Starobova
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Mercedes Monteleone
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Christelle Adolphe
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Lena Batoon
- Mater Research Institute and Faculty of Medicine, The University of Queensland, Woolloongabba, Queensland, Australia
- Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Cheyenne J. Sandrock
- Mater Research Institute and Faculty of Medicine, The University of Queensland, Woolloongabba, Queensland, Australia
- Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Bryan Tay
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Jennifer R. Deuis
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Alexandra V. Smith
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Alexander Mueller
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Evelyn Israel Nadar
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Grace Pamo Lawrence
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Amanda Mayor
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Elissa Tolson
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Jean-Pierre Levesque
- Mater Research Institute and Faculty of Medicine, The University of Queensland, Woolloongabba, Queensland, Australia
- Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Allison R. Pettit
- Mater Research Institute and Faculty of Medicine, The University of Queensland, Woolloongabba, Queensland, Australia
- Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Brandon J. Wainwright
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Kate Schroder
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
| | - Irina Vetter
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, Australia
- The School of Pharmacy, The University of Queensland, Woolloongabba, Queensland, Australia
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Kaur S, Sehgal A, Wu AC, Millard SM, Batoon L, Sandrock CJ, Ferrari-Cestari M, Levesque JP, Hume DA, Raggatt LJ, Pettit AR. Stable colony-stimulating factor 1 fusion protein treatment increases hematopoietic stem cell pool and enhances their mobilisation in mice. J Hematol Oncol 2021; 14:3. [PMID: 33402221 PMCID: PMC7786999 DOI: 10.1186/s13045-020-00997-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 11/11/2020] [Indexed: 12/12/2022] Open
Abstract
Background Prior chemotherapy and/or underlying morbidity commonly leads to poor mobilisation of hematopoietic stem cells (HSC) for transplantation in cancer patients. Increasing the number of available HSC prior to mobilisation is a potential strategy to overcome this deficiency. Resident bone marrow (BM) macrophages are essential for maintenance of niches that support HSC and enable engraftment in transplant recipients. Here we examined potential of donor treatment with modified recombinant colony-stimulating factor 1 (CSF1) to influence the HSC niche and expand the HSC pool for autologous transplantation. Methods We administered an acute treatment regimen of CSF1 Fc fusion protein (CSF1-Fc, daily injection for 4 consecutive days) to naive C57Bl/6 mice. Treatment impacts on macrophage and HSC number, HSC function and overall hematopoiesis were assessed at both the predicted peak drug action and during post-treatment recovery. A serial treatment strategy using CSF1-Fc followed by granulocyte colony-stimulating factor (G-CSF) was used to interrogate HSC mobilisation impacts. Outcomes were assessed by in situ imaging and ex vivo standard and imaging flow cytometry with functional validation by colony formation and competitive transplantation assay. Results CSF1-Fc treatment caused a transient expansion of monocyte-macrophage cells within BM and spleen at the expense of BM B lymphopoiesis and hematopoietic stem and progenitor cell (HSPC) homeostasis. During the recovery phase after cessation of CSF1-Fc treatment, normalisation of hematopoiesis was accompanied by an increase in the total available HSPC pool. Multiple approaches confirmed that CD48−CD150+ HSC do not express the CSF1 receptor, ruling out direct action of CSF1-Fc on these cells. In the spleen, increased HSC was associated with expression of the BM HSC niche macrophage marker CD169 in red pulp macrophages, suggesting elevated spleen engraftment with CD48−CD150+ HSC was secondary to CSF1-Fc macrophage impacts. Competitive transplant assays demonstrated that pre-treatment of donors with CSF1-Fc increased the number and reconstitution potential of HSPC in blood following a HSC mobilising regimen of G-CSF treatment. Conclusion These results indicate that CSF1-Fc conditioning could represent a therapeutic strategy to overcome poor HSC mobilisation and subsequently improve HSC transplantation outcomes.
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Affiliation(s)
- Simranpreet Kaur
- Mater Research Institute-The University of Queensland, Faculty of Medicine, Translational Research Institute, 37 Kent St, Woolloongabba, 4102, Australia
| | - Anuj Sehgal
- Mater Research Institute-The University of Queensland, Faculty of Medicine, Translational Research Institute, 37 Kent St, Woolloongabba, 4102, Australia
| | - Andy C Wu
- Mater Research Institute-The University of Queensland, Faculty of Medicine, Translational Research Institute, 37 Kent St, Woolloongabba, 4102, Australia
| | - Susan M Millard
- Mater Research Institute-The University of Queensland, Faculty of Medicine, Translational Research Institute, 37 Kent St, Woolloongabba, 4102, Australia
| | - Lena Batoon
- Mater Research Institute-The University of Queensland, Faculty of Medicine, Translational Research Institute, 37 Kent St, Woolloongabba, 4102, Australia
| | - Cheyenne J Sandrock
- Mater Research Institute-The University of Queensland, Faculty of Medicine, Translational Research Institute, 37 Kent St, Woolloongabba, 4102, Australia
| | - Michelle Ferrari-Cestari
- Mater Research Institute-The University of Queensland, Faculty of Medicine, Translational Research Institute, 37 Kent St, Woolloongabba, 4102, Australia
| | - Jean-Pierre Levesque
- Mater Research Institute-The University of Queensland, Faculty of Medicine, Translational Research Institute, 37 Kent St, Woolloongabba, 4102, Australia
| | - David A Hume
- Mater Research Institute-The University of Queensland, Faculty of Medicine, Translational Research Institute, 37 Kent St, Woolloongabba, 4102, Australia
| | - Liza J Raggatt
- Mater Research Institute-The University of Queensland, Faculty of Medicine, Translational Research Institute, 37 Kent St, Woolloongabba, 4102, Australia
| | - Allison R Pettit
- Mater Research Institute-The University of Queensland, Faculty of Medicine, Translational Research Institute, 37 Kent St, Woolloongabba, 4102, Australia.
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Grabert K, Sehgal A, Irvine KM, Wollscheid-Lengeling E, Ozdemir DD, Stables J, Luke GA, Ryan MD, Adamson A, Humphreys NE, Sandrock CJ, Rojo R, Verkasalo VA, Mueller W, Hohenstein P, Pettit AR, Pridans C, Hume DA. A Transgenic Line That Reports CSF1R Protein Expression Provides a Definitive Marker for the Mouse Mononuclear Phagocyte System. J I 2020; 205:3154-3166. [DOI: 10.4049/jimmunol.2000835] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 09/23/2020] [Indexed: 12/12/2022]
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