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Inoue T, Umene R, Sung SSJ, Tanaka S, Huang L, Yao J, Hashimoto N, Wu CH, Nakamura Y, Nishino T, Ye H, Rosin DL, Ishihara K, Okusa MD. Bone marrow stromal cell antigen-1 deficiency protects from acute kidney injury. Am J Physiol Renal Physiol 2024; 326:F167-F177. [PMID: 37969103 DOI: 10.1152/ajprenal.00175.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 10/16/2023] [Accepted: 11/01/2023] [Indexed: 11/17/2023] Open
Abstract
This study aimed to investigate the role of bone marrow stromal cell antigen-1 (Bst1; also known as CD157) in acute kidney injury (AKI). Bst1 is a cell surface molecule with various enzymatic activities and downstream intracellular signaling pathways that modulate the immune response. Previous research has linked Bst1 to diseases such as ovarian cancer, Parkinson's disease, and rheumatoid arthritis. We used bilateral ischemia-reperfusion injury (IRI) as an AKI model and created bone marrow chimeric mice to evaluate the role of Bst1 in bone marrow-derived cells. We also used flow cytometry to identify Bst1/CD157 expression in hematopoietic cells and evaluate immune cell dynamics in the kidney. The findings showed that Bst1-deficient (Bst1-/-) mice were protected against renal bilateral IRI. Bone marrow chimera experiments revealed that Bst1 expression on hematopoietic cells, but not parenchymal cells, induced renal IRI. Bst1 was mainly found in B cells and neutrophils by flow cytometry of the spleen and bone marrow. In vitro, migration of neutrophils from Bst1-/- mice was suppressed, and adoptive transfer of neutrophils from wild-type Bst1+/+ mice abolished the renal protective effect in Bst1 knockout mice. In conclusion, the study demonstrated that Bst1-/- mice are protected against renal IRI and that Bst1 expression in neutrophils plays a crucial role in inducing renal IRI. These findings suggest that targeting Bst1 in neutrophils could be a potential therapeutic strategy for AKI.NEW & NOTEWORTHY Acute kidney injury (AKI), a serious disease for which there is no effective Federal Drug Administration-approved treatment, is associated with high mortality rates. Bone marrow stromal cell antigen-1 (Bst1) is a cell surface molecule that can cause kidney fibrosis, but its role in AKI is largely unknown. Our study showed that Bst1-/- mice revealed a protective effect against renal bilateral ischemia-reperfusion injury (IRI). Adoptive transfer studies confirmed that Bst1 expression in hematopoietic cells, especially neutrophils, contributed to renal bilateral IRI.
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Affiliation(s)
- Tsuyoshi Inoue
- Division of Nephrology, Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia, United States
- Department of Physiology of Visceral Function and Body Fluid, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Ryusuke Umene
- Department of Physiology of Visceral Function and Body Fluid, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
- Department of Nephrology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Sun-Sang J Sung
- Division of Nephrology, Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia, United States
| | - Shinji Tanaka
- Division of Nephrology, Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia, United States
| | - Liping Huang
- Division of Nephrology, Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia, United States
| | - Junlan Yao
- Division of Nephrology, Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia, United States
| | - Noritatsu Hashimoto
- Department of Physiology of Visceral Function and Body Fluid, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Chia-Hsien Wu
- Department of Physiology of Visceral Function and Body Fluid, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Yasuna Nakamura
- Department of Physiology of Visceral Function and Body Fluid, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Tomoya Nishino
- Department of Nephrology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Hong Ye
- Division of Nephrology, Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia, United States
| | - Diane L Rosin
- Department of Pharmacology, University of Virginia, Charlottesville, Virginia, United States
| | - Katsuhiko Ishihara
- Department of Design for Medical and Health Care, Faculty of Health and Welfare Services Administration, Kawasaki University of Medical Welfare, Okayama, Japan
| | - Mark D Okusa
- Division of Nephrology, Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia, United States
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Díaz-Alvarez L, Martínez-Sánchez ME, Gray E, Pérez-Figueroa E, Ortega E. Aminopeptidase N/CD13 Crosslinking Promotes the Activation and Membrane Expression of Integrin CD11b/CD18. Biomolecules 2023; 13:1488. [PMID: 37892170 PMCID: PMC10604325 DOI: 10.3390/biom13101488] [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: 08/23/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/29/2023] Open
Abstract
The β2 integrin CD11b/CD18, also known as complement receptor 3 (CR3), and the moonlighting protein aminopeptidase N (CD13), are two myeloid immune receptors with overlapping activities: adhesion, migration, phagocytosis of opsonized particles, and respiratory burst induction. Given their common functions, shared physical location, and the fact that some receptors can activate a selection of integrins, we hypothesized that CD13 could induce CR3 activation through an inside-out signaling mechanism and possibly have an influence on its membrane expression. We revealed that crosslinking CD13 on the surface of human macrophages not only activates CR3 but also influences its membrane expression. Both phenomena are affected by inhibitors of Src, PLCγ, Syk, and actin polymerization. Additionally, after only 10 min at 37 °C, cells with crosslinked CD13 start secreting pro-inflammatory cytokines like interferons type 1 and 2, IL-12p70, and IL-17a. We integrated our data with a bioinformatic analysis to confirm the connection between these receptors and to suggest the signaling cascade linking them. Our findings expand the list of features of CD13 by adding the activation of a different receptor via inside-out signaling. This opens the possibility of studying the joint contribution of CD13 and CR3 in contexts where either receptor has a recognized role, such as the progression of some leukemias.
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Affiliation(s)
- Laura Díaz-Alvarez
- Instituto de Investigaciones Biomédicas, Departamento de Inmunología, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
- Posgrado en Ciencias Biológicas, Unidad de Posgrado, Edificio D, 1° Piso, Circuito de Posgrados, Ciudad Universitaria, Mexico City 04510, Mexico
| | | | - Eleanor Gray
- London Centre for Nanotechnology, Department of Physics and Astronomy, University College London, London WC2R 2LS, UK
| | - Erandi Pérez-Figueroa
- Laboratorio de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| | - Enrique Ortega
- Instituto de Investigaciones Biomédicas, Departamento de Inmunología, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
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Jin L, Xiao L, Ding M, Pan A, Balian G, Sung SSJ, Li XJ. Heterogeneous macrophages contribute to the pathology of disc herniation induced radiculopathy. Spine J 2022; 22:677-689. [PMID: 34718176 PMCID: PMC8957503 DOI: 10.1016/j.spinee.2021.10.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/17/2021] [Accepted: 10/18/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Macrophages play important roles in the progression of intervertebral disc herniation and radiculopathy. PURPOSE To better understand the roles of macrophages in this process, we developed a new mouse model that mimics human radiculopathy. STUDY DESIGN/SETTING A preclinical randomized animal study. METHODS Three types of surgeries were performed in randomly assigned Balb/c mice. These were spinal nerve exposure, traditional anterior disc puncture, and lateral disc puncture with nerve exposure (n=16/group). For the nerve exposure group, the left L5 spinal nerve was exposed without disc injury. For the traditional anterior puncture, L5/6 disc was punctured by an anterior approach as previously established. For lateral puncture with nerve exposure, the left L5 spinal nerve was exposed by removing the psoas major muscle fibers, and the L5/6 disc was punctured laterally on the left side with a 30G needle, allowing the nucleus to protrude toward the L5 spinal nerve. Mechanical hyperalgesia (pain sensitivity) of hind paws was assessed with electronic von Frey assay on alternative day for up to 2 weeks. MRI, histology, and immunostaining were performed to confirm disc herniation and inflammation. RESULTS Ipsilateral pain in the lateral puncture with nerve exposure group was significantly greater than the other groups. Pro-inflammatory cytokines IL-1β and IL-6 were markedly elevated at the hernia sites of both puncture groups and the spinal nerve of lateral puncture with never exposure group on postoperative day 7. Heterogeneous populations of macrophages were detected in the infiltration tissue of this mouse model and in tissue from patients undergone discectomy. CONCLUSIONS We have established a new mouse model that mimics human radiculopathy and demonstrated that a mixed phenotype of macrophages contribute to the pathogenesis of acute discogenic radiculopathy. CLINICAL SIGNIFICANCE This study provides a clinically relevant in vivo animal model to elucidate complex interactions of disc herniation and radicular pain, which may present opportunities for the development of macrophage-anchored therapeutics to manage radiculopathy.
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Affiliation(s)
- Li Jin
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22908, USA
| | - Li Xiao
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22908, USA
| | - Mengmeng Ding
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22908, USA; Department of Anesthesiology, Shengjing hospital, China Medical University, Shenyang, China
| | - Aixing Pan
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22908, USA; Department of Orthopaedic Surgery, Chaoyang Hospital, Capital Medical School, Beijing, China
| | - Gary Balian
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22908, USA; Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, VA 22908, USA
| | - Sun-Sang J Sung
- Department of Medicine and Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Xudong Joshua Li
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22908, USA; Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22904, USA.
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