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Sideris-Lampretsas G, Oggero S, Zeboudj L, Silva R, Bajpai A, Dharmalingam G, Collier DA, Malcangio M. Galectin-3 activates spinal microglia to induce inflammatory nociception in wild type but not in mice modelling Alzheimer's disease. Nat Commun 2023; 14:3579. [PMID: 37349313 PMCID: PMC10287730 DOI: 10.1038/s41467-023-39077-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 05/26/2023] [Indexed: 06/24/2023] Open
Abstract
Musculoskeletal chronic pain is prevalent in individuals with Alzheimer's disease (AD); however, it remains largely untreated in these patients, raising the possibility that pain mechanisms are perturbed. Here, we utilise the TASTPM transgenic mouse model of AD with the K/BxN serum transfer model of inflammatory arthritis. We show that in male and female WT mice, inflammatory allodynia is associated with a distinct spinal cord microglial response characterised by TLR4-driven transcriptional profile and upregulation of P2Y12. Dorsal horn nociceptive afferent terminals release the TLR4 ligand galectin-3 (Gal-3), and intrathecal injection of a Gal-3 inhibitor attenuates allodynia. In contrast, TASTPM mice show reduced inflammatory allodynia, which is not affected by the Gal-3 inhibitor and correlates with the emergence of a P2Y12- TLR4- microglia subset in the dorsal horn. We suggest that sensory neuron-derived Gal-3 promotes allodynia through the TLR4-regulated release of pro-nociceptive mediators by microglia, a process that is defective in TASTPM due to the absence of TLR4 in a microglia subset.
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Affiliation(s)
| | - Silvia Oggero
- Wolfson Centre for Age-Related Diseases, King's College London, London, United Kingdom
| | - Lynda Zeboudj
- Wolfson Centre for Age-Related Diseases, King's College London, London, United Kingdom
| | - Rita Silva
- Wolfson Centre for Age-Related Diseases, King's College London, London, United Kingdom
| | - Archana Bajpai
- Eli Lilly & Company, Surrey, 8 Arlington Square West, Bracknell, RG12 1PU, United Kingdom
| | - Gopuraja Dharmalingam
- Eli Lilly & Company, Surrey, 8 Arlington Square West, Bracknell, RG12 1PU, United Kingdom
| | - David A Collier
- Eli Lilly & Company, Surrey, 8 Arlington Square West, Bracknell, RG12 1PU, United Kingdom
| | - Marzia Malcangio
- Wolfson Centre for Age-Related Diseases, King's College London, London, United Kingdom.
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Zeboudj L, Sideris-Lampretsas G, Silva R, Al-Mudaris S, Picco F, Fox S, Chambers D, Malcangio M. Silencing miR-21-5p in sensory neurons reverses neuropathic allodynia via activation of TGFB-related pathway in macrophages. J Clin Invest 2023:164472. [PMID: 37071481 DOI: 10.1172/jci164472] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2023] Open
Abstract
Neuropathic pain remains poorly managed by current therapies highlighting the need to improve our knowledge of chronic pain mechanisms. In neuropathic pain models, dorsal root ganglia (DRG) nociceptive neurons transfer miR-21 packaged in extracellular vesicles to macrophages that promote pro-inflammatory phenotype and contribute to allodynia. Here we show that miR-21 conditional deletion in DRG neurons was coupled with lack of up-regulation of CCL2 chemokine after nerve injury and reduced accumulation of CCR2-expressing macrophages, which showed TGFB-related pathway activation and acquired M2-like anti-nociceptive phenotype. Indeed, neuropathic allodynia was attenuated in cKO and restored by a TGFB receptor inhibitor (SB431542) administration. Since TGFBR2 and TGFB1 are known miR-21 targets, we suggest that miR-21 transfer from injured neurons to macrophages maintains a pro-inflammatory phenotype via suppression of such an anti-inflammatory pathway. These data support miR-21 inhibition as a possible approach to maintain polarization of DRG macrophages at M2-like state and attenuate neuropathic pain.
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Affiliation(s)
- Lynda Zeboudj
- Wolfson CARD, King's College London, London, United Kingdom
| | | | - Rita Silva
- Wolfson CARD, King's College London, London, United Kingdom
| | | | | | - Sarah Fox
- Wolfson CARD, King's College London, London, United Kingdom
| | - David Chambers
- Wolfson CARD, King's College London, London, United Kingdom
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Silva R, Sideris-Lampretsas G, Fox S, Zeboudj L, Malcangio M. CD206 +/MHCII - macrophage accumulation at nerve injury site correlates with attenuation of allodynia in TASTPM mouse model of Alzheimer's disease. Brain Behav Immun Health 2022; 26:100548. [PMID: 36388139 PMCID: PMC9643400 DOI: 10.1016/j.bbih.2022.100548] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/26/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022] Open
Abstract
Chronic pain is undertreated in people with Alzheimer's disease (AD) and better understanding of the underlying mechanisms of chronic pain in this neurodegenerative disease is essential. Neuropathic pain and AD share a significant involvement of the peripheral immune system. Therefore, we examined the development of nerve injury-induced allodynia in TASTPM (APPsweXPS1.M146V) mice and assessed monocytes/macrophages at injury site. TASTPM developed partial allodynia compared to WT at days 7, 14 and 21 days after injury, and showed complete allodynia only after treatment with naloxone methiodide, a peripheralized opioid receptor antagonist. Since macrophages are one of the sources of endogenous opioids in the periphery, we examined macrophage infiltration at injury site and observed that CD206+/MHCII- cells were more numerous in TASTPM than WT. Accordingly, circulating TASTPM Ly6Chigh (classical) monocytes, which are pro-inflammatory and infiltrate at the site of injury, were less abundant than in WT. In in vitro experiments, TASTPM bone marrow-derived macrophages showed efficient phagocytosis of myelin extracts containing amyloid precursor protein, acquired CD206+/MHCII- phenotype, upregulated mRNA expression of proenkephalin (PENK) and accumulated enkephalins in culture media. These data suggest that in TASTPM nerve-injured mice, infiltrating macrophages which derive from circulating monocytes and may contain amyloid fragments, acquire M2-like phenotype after myelin engulfment, and release enkephalins which are likely to inhibit nociceptive neuron activity via activation of opioid receptors.
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Affiliation(s)
- Rita Silva
- Wolfson Centre for Age Related Diseases, King's College London, London, SE1 1UL, UK
| | | | - Sarah Fox
- Wolfson Centre for Age Related Diseases, King's College London, London, SE1 1UL, UK
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Oggero S, Cecconello C, Silva R, Zeboudj L, Sideris-Lampretsas G, Perretti M, Malcangio M. Dorsal root ganglia CX3CR1 expressing monocytes/macrophages contribute to arthritis pain. Brain Behav Immun 2022; 106:289-306. [PMID: 36115544 PMCID: PMC10166715 DOI: 10.1016/j.bbi.2022.09.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 09/06/2022] [Accepted: 09/11/2022] [Indexed: 11/18/2022] Open
Abstract
Pain is a persistent symptom of Rheumatoid Arthritis, and the K/BxN serum transfer model recapitulates both association and dissociation between pain and joint inflammation in RA. Furthermore, this model features monocyte/macrophage infiltration in joints and lumbar dorsal root ganglia (DRG), where these immune cells are close to nociceptive neurons. We focussed on CX3CR1-monocyte/macrophage trafficking and show that at peak paw swelling associated with nociception, CX3CR1 deletion altered neither swelling nor macrophage infiltration/phenotype in paws. However, acute nociception and DRG non-classical monocyte numbers were reduced in CX3CR1GFP/GFP (KO) compared to CX3CR1+/GFP (WT). Nociception that persisted despite swelling had resolved was attenuated in KO and correlated with DRG macrophages displaying M2-like phenotype. Still in the DRG, neurons up-regulated neuropeptide CGRP and olcegepant treatment reduced acute swelling, nociception, and leukocyte infiltration in paws and DRG. We delineate in-vitro a signalling pathway showing that CGRP liberates the CX3CR1 ligand fractalkine (FKN) from endothelium, and in bone marrow-derived macrophages, FKN promotes activation of intracellular kinases, polarisation towards M1-like phenotype and release of pro-nociceptive IL-6. These data implicate non-classical CX3CR1-expressing monocyte and macrophage recruitment into the DRG in initiation and maintenance of arthritis pain.
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Affiliation(s)
- Silvia Oggero
- Wolfson Centre for Age Related Diseases, King's College London, London SE1 1UL, UK
| | - Chiara Cecconello
- The William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London EC1M 6BQ, UK
| | - Rita Silva
- Wolfson Centre for Age Related Diseases, King's College London, London SE1 1UL, UK
| | - Lynda Zeboudj
- Wolfson Centre for Age Related Diseases, King's College London, London SE1 1UL, UK
| | | | - Mauro Perretti
- The William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London EC1M 6BQ, UK; Centre for Inflammation and Therapeutic Innovation, Queen Mary University of London, London, UK
| | - Marzia Malcangio
- Wolfson Centre for Age Related Diseases, King's College London, London SE1 1UL, UK.
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Abstract
An emergent subgroup of spinal cord microglia mediates recovery from persistent pain.
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Affiliation(s)
| | - Marzia Malcangio
- Wolfson Centre for Age-Related Diseases, King's College London, London, UK
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Abstract
In this review, we report existing preclinical evidence on how the CNS compartment as well as sex affect microglia functions in health. We highlight that recent advances in transcriptomics analyses have led to thorough characterization of disease-associated microglial states in mice and humans. We then consider the specific scenario of peripheral nerve or tissue injury which induce expression of a specific subset of genes in microglia in the dorsal horn of the spinal cord. We suggest the intriguing possibility that future studies may disclose the existence of a unique microglia transcriptional profile that is associated with chronic pain conditions. We also collect evidence that microglial activation in pain-related areas of the brain can be observed in models of neuropathic pain in agreement with recent neuroimaging studies in chronic pain patients. Based on the evidence discussed here, we predict that future studies on the neuroimmune interactions in chronic pain should complement our current understanding of microglia functions, but also adventure in using novel approaches such as scRNA-seq, spatial transcriptomics, CYTOF and transmission electron microscopy to provide a more complete characterization of the function, transcriptome and structure of microglia in chronic pain.
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Affiliation(s)
- George Sideris-Lampretsas
- Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology and Neuroscience, King's College London, Guys' Campus, London Bridge, London SE1 1UL, UK.
| | - Marzia Malcangio
- Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology and Neuroscience, King's College London, Guys' Campus, London Bridge, London SE1 1UL, UK.
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Lawn T, Aman Y, Rukavina K, Sideris-Lampretsas G, Howard M, Ballard C, Ray Chaudhuri K, Malcangio M. Pain in the neurodegenerating brain: insights into pharmacotherapy for Alzheimer disease and Parkinson disease. Pain 2021; 162:999-1006. [PMID: 33239526 PMCID: PMC7977618 DOI: 10.1097/j.pain.0000000000002111] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/18/2020] [Accepted: 10/08/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Timothy Lawn
- Centre for Neuroimaging Sciences, The Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom
| | - Yahyah Aman
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, Lørenskog, Norway
| | - Katarina Rukavina
- The Maurice Wohl Clinical Neuroscience Institute, The Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom
- Parkinson Foundation Centre of Excellence, King's College Hospital, London, United Kingdom
| | - George Sideris-Lampretsas
- Wolfson Centre for Age Related Diseases, The Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom
| | - Matthew Howard
- Centre for Neuroimaging Sciences, The Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom
| | | | - Kallol Ray Chaudhuri
- The Maurice Wohl Clinical Neuroscience Institute, The Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom
- Parkinson Foundation Centre of Excellence, King's College Hospital, London, United Kingdom
| | - Marzia Malcangio
- Wolfson Centre for Age Related Diseases, The Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom
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