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Kim BS, Tilstam PV, Springenberg-Jung K, Boecker AH, Schmitz C, Heinrichs D, Hwang SS, Stromps JP, Ganse B, Kopp R, Knobe M, Bernhagen J, Pallua N, Bucala R. Characterization of adipose tissue macrophages and adipose-derived stem cells in critical wounds. PeerJ 2017; 5:e2824. [PMID: 28070458 PMCID: PMC5217526 DOI: 10.7717/peerj.2824] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 05/17/2016] [Accepted: 11/22/2016] [Indexed: 01/14/2023] Open
Abstract
Background Subcutaneous adipose tissue is a rich source of adipose tissue macrophages and adipose-derived stem cells which both play a key role in wound repair. While macrophages can be divided into the classically-activated M1 and the alternatively-activated M2 phenotype, ASCs are characterized by the expression of specific stem cell markers. Methods In the present study, we have investigated the expression of common macrophage polarization and stem cell markers in acutely inflamed adipose tissue. Subcutaneous adipose tissue adjacent to acutely inflamed wounds of 20 patients and 20 healthy subjects were harvested and underwent qPCR and flow cytometry analysis. Results Expression levels of the M1-specific markers CD80, iNOS, and IL-1b were significantly elevated in inflammatory adipose tissue when compared to healthy adipose tissue, whereas the M2-specific markers CD163 and TGF-β were decreased. By flow cytometry, a significant shift of adipose tissue macrophage populations towards the M1 phenotype was confirmed. Furthermore, a decrease in the mesenchymal stem cell markers CD29, CD34, and CD105 was observed whereas CD73 and CD90 remained unchanged. Discussion This is the first report describing the predominance of M1 adipose tissue macrophages and the reduction of stem cell marker expression in acutely inflamed, non-healing wounds.
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Affiliation(s)
- Bong-Sung Kim
- Plastic and Reconstructive Surgery, Hand Surgery-Burn Center, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany.,Department of Medicine, Yale University, New Haven, United States.,Institute of Biochemistry and Molecular Cell Biology, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | | | - Katrin Springenberg-Jung
- Plastic and Reconstructive Surgery, Hand Surgery-Burn Center, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Arne Hendrick Boecker
- Plastic and Reconstructive Surgery, Hand Surgery-Burn Center, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Corinna Schmitz
- Institute of Biochemistry and Molecular Cell Biology, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Daniel Heinrichs
- Institute of Biochemistry and Molecular Cell Biology, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Soo Seok Hwang
- Department of Immunology, Yale University, New Haven, United States
| | - Jan Philipp Stromps
- Plastic and Reconstructive Surgery, Hand Surgery-Burn Center, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Bergita Ganse
- Department of Orthopedic Trauma Surgery, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Ruedger Kopp
- Department of Intensive Care Medicine, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Matthias Knobe
- Department of Orthopedic Trauma Surgery, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Juergen Bernhagen
- Department of Vascular Biology, Institute for Stroke and Dementia Research, Ludwig-Maximilians-Universität München (LMU), Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Ludwig-Maximilians-Universität München (LMU), Munich, Germany
| | - Norbert Pallua
- Plastic and Reconstructive Surgery, Hand Surgery-Burn Center, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Richard Bucala
- Department of Medicine, Yale University, New Haven, United States
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Kim BS, Stoppe C, Grieb G, Leng L, Sauler M, Assis D, Simons D, Boecker AH, Schulte W, Piecychna M, Hager S, Bernhagen J, Pallua N, Bucala R. The clinical significance of the MIF homolog d-dopachrome tautomerase (MIF-2) and its circulating receptor (sCD74) in burn. Burns 2016; 42:1265-76. [PMID: 27209369 DOI: 10.1016/j.burns.2016.02.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 12/06/2015] [Revised: 02/03/2016] [Accepted: 02/05/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND We reported earlier that the cytokine macrophage migration inhibitory factor (MIF) is a potential biomarker in burn injury. In the present study, we investigated the clinical significance of the newly discovered MIF family member d-dopachrome tautomerase (DDT or MIF-2) and their common soluble receptor CD74 (sCD74) in severely burned patients. METHODS DDT and sCD74 serum levels were measured 20 severely burned patients and 20 controls. Serum levels were correlated to the abbreviated burn severity index (ABSI) and total body surface area (TBSA) followed by receiver operating characteristic (ROC) analysis. Data were supported by gene expression dataset analysis of 31 burn patients and 28 healthy controls. RESULTS CD74 and DDT were increased in burn patients. Furthermore, CD74 and DDT also were elevated in septic non-survivors when compared to survivors. Serum levels of DDT showed a positive correlation with the ABSI and TBSA in the early stage after burn, and the predictive character of DDT was strongest at 24h. Serum levels of CD74 only correlated with the ABSI 5 days after injury. CONCLUSIONS DDT may assist in the monitoring of clinical outcome and prediction of sepsis during the early post-burn period. Soluble CD74 and MIF, by contrast, have limited value as an early predictor of death due to their delayed response to burn.
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Affiliation(s)
- Bong-Sung Kim
- Department of Medicine, Yale University School of Medicine, 300 Cedar Street, 06520 New Haven, CT, USA; Department of Plastic and Reconstructive Surgery, Hand Surgery - Burn Center, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany; Institute of Biochemistry and Molecular Cell Biology, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany.
| | - Christian Stoppe
- Institute of Biochemistry and Molecular Cell Biology, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany; Department of Anesthesiology and Intensive Care Medicine, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Gerrit Grieb
- Department of Plastic and Reconstructive Surgery, Hand Surgery - Burn Center, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Lin Leng
- Department of Medicine, Yale University School of Medicine, 300 Cedar Street, 06520 New Haven, CT, USA
| | - Maor Sauler
- Pulmonary, Critical Care & Sleep Medicine, Yale University School of Medicine, 300 Cedar Street, 06520 New Haven, CT, USA
| | - David Assis
- Digestive Diseases, Yale University School of Medicine, 300 Cedar Street, 06520 New Haven, CT, USA
| | - David Simons
- Institute of Biochemistry and Molecular Cell Biology, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany; German Cancer Research Center, Im Neuenheimer Feld 280, 69121 Heidelberg, Germany
| | - Arne Hendrick Boecker
- Department of Plastic and Reconstructive Surgery, Hand Surgery - Burn Center, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Wibke Schulte
- Department of Medicine, Yale University School of Medicine, 300 Cedar Street, 06520 New Haven, CT, USA
| | - Marta Piecychna
- Department of Medicine, Yale University School of Medicine, 300 Cedar Street, 06520 New Haven, CT, USA
| | - Stephan Hager
- Department of Plastic and Reconstructive Surgery, Hand Surgery - Burn Center, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Jürgen Bernhagen
- Institute of Biochemistry and Molecular Cell Biology, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany; Institute for Stroke and Dementia Research, Ludwig-Maximilians University Munich, Feodor-Lynen-Straße 17, 81377 Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Feodor-Lynen-Straße 17, 81377 Munich, Germany
| | - Norbert Pallua
- Department of Plastic and Reconstructive Surgery, Hand Surgery - Burn Center, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Richard Bucala
- Department of Medicine, Yale University School of Medicine, 300 Cedar Street, 06520 New Haven, CT, USA
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