The role of the complement system in disc degeneration and Modic changes

Abstract Disc degeneration and vertebral endplate bone marrow lesions called Modic changes are prevalent spinal pathologies found in chronic low back pain patients. Their pathomechanisms are complex and not fully understood. Recent studies have revealed that complement system proteins and interactor...

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Main Authors: Irina Heggli, Graciosa Q. Teixeira, James C. Iatridis, Cornelia Neidlinger‐Wilke, Stefan Dudli
Format: Article
Language:English
Published: Wiley 2024-03-01
Series:JOR Spine
Subjects:
Online Access:https://doi.org/10.1002/jsp2.1312
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author Irina Heggli
Graciosa Q. Teixeira
James C. Iatridis
Cornelia Neidlinger‐Wilke
Stefan Dudli
author_facet Irina Heggli
Graciosa Q. Teixeira
James C. Iatridis
Cornelia Neidlinger‐Wilke
Stefan Dudli
author_sort Irina Heggli
collection DOAJ
description Abstract Disc degeneration and vertebral endplate bone marrow lesions called Modic changes are prevalent spinal pathologies found in chronic low back pain patients. Their pathomechanisms are complex and not fully understood. Recent studies have revealed that complement system proteins and interactors are dysregulated in disc degeneration and Modic changes. The complement system is part of the innate immune system and plays a critical role in tissue homeostasis. However, its dysregulation has also been associated with various pathological conditions such as rheumatoid arthritis and osteoarthritis. Here, we review the evidence for the involvement of the complement system in intervertebral disc degeneration and Modic changes. We found that only a handful of studies reported on complement factors in Modic changes and disc degeneration. Therefore, the level of evidence for the involvement of the complement system is currently low. Nevertheless, the complement system is tightly intertwined with processes known to occur during disc degeneration and Modic changes, such as increased cell death, autoantibody production, bacterial defense processes, neutrophil activation, and osteoclast formation, indicating a contribution of the complement system to these spinal pathologies. Based on these mechanisms, we propose a model how the complement system could contribute to the vicious cycle of tissue damage and chronic inflammation in disc degeneration and Modic changes. With this review, we aim to highlight a currently understudied but potentially important inflammatory pathomechanism of disc degeneration and Modic changes that may be a novel therapeutic target.
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spelling doaj.art-f2197514fabb4da59ca9fbcd1e2d86ee2024-03-26T14:08:39ZengWileyJOR Spine2572-11432024-03-0171n/an/a10.1002/jsp2.1312The role of the complement system in disc degeneration and Modic changesIrina Heggli0Graciosa Q. Teixeira1James C. Iatridis2Cornelia Neidlinger‐Wilke3Stefan Dudli4Center of Experimental Rheumatology, Department of Rheumatology University Hospital Zurich, University of Zurich Zurich SwitzerlandInstitute of Orthopedic Research and Biomechanics, Trauma Research Centre, Ulm University Ulm GermanyLeni and Peter W. May Department of Orthopaedics Icahn School of Medicine at Mount Sinai New York New York USAInstitute of Orthopedic Research and Biomechanics, Trauma Research Centre, Ulm University Ulm GermanyCenter of Experimental Rheumatology, Department of Rheumatology University Hospital Zurich, University of Zurich Zurich SwitzerlandAbstract Disc degeneration and vertebral endplate bone marrow lesions called Modic changes are prevalent spinal pathologies found in chronic low back pain patients. Their pathomechanisms are complex and not fully understood. Recent studies have revealed that complement system proteins and interactors are dysregulated in disc degeneration and Modic changes. The complement system is part of the innate immune system and plays a critical role in tissue homeostasis. However, its dysregulation has also been associated with various pathological conditions such as rheumatoid arthritis and osteoarthritis. Here, we review the evidence for the involvement of the complement system in intervertebral disc degeneration and Modic changes. We found that only a handful of studies reported on complement factors in Modic changes and disc degeneration. Therefore, the level of evidence for the involvement of the complement system is currently low. Nevertheless, the complement system is tightly intertwined with processes known to occur during disc degeneration and Modic changes, such as increased cell death, autoantibody production, bacterial defense processes, neutrophil activation, and osteoclast formation, indicating a contribution of the complement system to these spinal pathologies. Based on these mechanisms, we propose a model how the complement system could contribute to the vicious cycle of tissue damage and chronic inflammation in disc degeneration and Modic changes. With this review, we aim to highlight a currently understudied but potentially important inflammatory pathomechanism of disc degeneration and Modic changes that may be a novel therapeutic target.https://doi.org/10.1002/jsp2.1312complement systemdisc degenerationlow back painModic changes
spellingShingle Irina Heggli
Graciosa Q. Teixeira
James C. Iatridis
Cornelia Neidlinger‐Wilke
Stefan Dudli
The role of the complement system in disc degeneration and Modic changes
JOR Spine
complement system
disc degeneration
low back pain
Modic changes
title The role of the complement system in disc degeneration and Modic changes
title_full The role of the complement system in disc degeneration and Modic changes
title_fullStr The role of the complement system in disc degeneration and Modic changes
title_full_unstemmed The role of the complement system in disc degeneration and Modic changes
title_short The role of the complement system in disc degeneration and Modic changes
title_sort role of the complement system in disc degeneration and modic changes
topic complement system
disc degeneration
low back pain
Modic changes
url https://doi.org/10.1002/jsp2.1312
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