1
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Liang Y, Bhatt G, Tung LT, Wang H, Kim JE, Mousa M, Plackoska V, Illes K, Georges AA, Gros P, Henneman L, Huijbers IJ, Nagar B, Nijnik A. Deubiquitinase catalytic activity of MYSM1 is essential in vivo for hematopoiesis and immune cell development. Sci Rep 2023; 13:338. [PMID: 36611064 PMCID: PMC9825392 DOI: 10.1038/s41598-023-27486-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 01/03/2023] [Indexed: 01/09/2023] Open
Abstract
Myb-like SWIRM and MPN domains 1 (MYSM1) is a chromatin binding protein with deubiquitinase (DUB) catalytic activity. Rare MYSM1 mutations in human patients result in an inherited bone marrow failure syndrome, highlighting the biomedical significance of MYSM1 in the hematopoietic system. We and others characterized Mysm1-knockout mice as a model of this disorder and established that MYSM1 regulates hematopoietic function and leukocyte development in such models through different mechanisms. It is, however, unknown whether the DUB catalytic activity of MYSM1 is universally required for its many functions and for the maintenance of hematopoiesis in vivo. To test this, here we generated a new mouse strain carrying a Mysm1D660N point mutation (Mysm1DN) and demonstrated that the mutation renders MYSM1 protein catalytically inactive. We characterized Mysm1DN/DN and Mysm1fl/DN CreERT2 mice, against appropriate controls, for constitutive and inducible loss of MYSM1 catalytic function. We report a profound similarity in the developmental, hematopoietic, and immune phenotypes resulting from the loss of MYSM1 catalytic function and the full loss of MYSM1 protein. Overall, our work for the first time establishes the critical role of MYSM1 DUB catalytic activity in vivo in hematopoiesis, leukocyte development, and other aspects of mammalian physiology.
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Affiliation(s)
- Yue Liang
- grid.14709.3b0000 0004 1936 8649Department of Physiology, McGill University, 368 Bellini Life Sciences Complex, 3649 Promenade Sir William Osler, Montreal, QC H3G 0B1 Canada ,grid.14709.3b0000 0004 1936 8649McGill University Research Centre on Complex Traits, McGill University, Montreal, QC Canada
| | - Garvit Bhatt
- grid.14709.3b0000 0004 1936 8649Department of Pharmacology, McGill University, Montreal, QC Canada ,grid.14709.3b0000 0004 1936 8649Department of Biochemistry, McGill University, Montreal, QC Canada ,grid.14709.3b0000 0004 1936 8649Centre de Recherche en Biologie Structurale (CRBS), McGill University, Montreal, QC Canada
| | - Lin Tze Tung
- grid.14709.3b0000 0004 1936 8649Department of Physiology, McGill University, 368 Bellini Life Sciences Complex, 3649 Promenade Sir William Osler, Montreal, QC H3G 0B1 Canada ,grid.14709.3b0000 0004 1936 8649McGill University Research Centre on Complex Traits, McGill University, Montreal, QC Canada
| | - HanChen Wang
- grid.14709.3b0000 0004 1936 8649Department of Physiology, McGill University, 368 Bellini Life Sciences Complex, 3649 Promenade Sir William Osler, Montreal, QC H3G 0B1 Canada ,grid.14709.3b0000 0004 1936 8649McGill University Research Centre on Complex Traits, McGill University, Montreal, QC Canada
| | - Joo Eun Kim
- grid.14709.3b0000 0004 1936 8649Department of Physiology, McGill University, 368 Bellini Life Sciences Complex, 3649 Promenade Sir William Osler, Montreal, QC H3G 0B1 Canada ,grid.14709.3b0000 0004 1936 8649McGill University Research Centre on Complex Traits, McGill University, Montreal, QC Canada
| | - Marwah Mousa
- grid.14709.3b0000 0004 1936 8649Department of Physiology, McGill University, 368 Bellini Life Sciences Complex, 3649 Promenade Sir William Osler, Montreal, QC H3G 0B1 Canada ,grid.14709.3b0000 0004 1936 8649McGill University Research Centre on Complex Traits, McGill University, Montreal, QC Canada
| | - Viktoria Plackoska
- grid.14709.3b0000 0004 1936 8649Department of Physiology, McGill University, 368 Bellini Life Sciences Complex, 3649 Promenade Sir William Osler, Montreal, QC H3G 0B1 Canada ,grid.14709.3b0000 0004 1936 8649McGill University Research Centre on Complex Traits, McGill University, Montreal, QC Canada
| | - Katalin Illes
- grid.14709.3b0000 0004 1936 8649Department of Biochemistry, McGill University, Montreal, QC Canada ,grid.14709.3b0000 0004 1936 8649Centre de Recherche en Biologie Structurale (CRBS), McGill University, Montreal, QC Canada
| | - Anna A. Georges
- grid.14709.3b0000 0004 1936 8649McGill University Research Centre on Complex Traits, McGill University, Montreal, QC Canada ,grid.14709.3b0000 0004 1936 8649Department of Biochemistry, McGill University, Montreal, QC Canada
| | - Philippe Gros
- grid.14709.3b0000 0004 1936 8649McGill University Research Centre on Complex Traits, McGill University, Montreal, QC Canada ,grid.14709.3b0000 0004 1936 8649Department of Biochemistry, McGill University, Montreal, QC Canada
| | - Linda Henneman
- grid.430814.a0000 0001 0674 1393Mouse Clinic for Cancer and Aging, Netherlands Cancer Institute, Antoni Van Leeuwenhoek Ziekenhuis, Amsterdam, The Netherlands
| | - Ivo J. Huijbers
- grid.430814.a0000 0001 0674 1393Mouse Clinic for Cancer and Aging, Netherlands Cancer Institute, Antoni Van Leeuwenhoek Ziekenhuis, Amsterdam, The Netherlands
| | - Bhushan Nagar
- grid.14709.3b0000 0004 1936 8649Department of Biochemistry, McGill University, Montreal, QC Canada ,grid.14709.3b0000 0004 1936 8649Centre de Recherche en Biologie Structurale (CRBS), McGill University, Montreal, QC Canada
| | - Anastasia Nijnik
- Department of Physiology, McGill University, 368 Bellini Life Sciences Complex, 3649 Promenade Sir William Osler, Montreal, QC, H3G 0B1, Canada. .,McGill University Research Centre on Complex Traits, McGill University, Montreal, QC, Canada.
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2
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Zhan X, Zhao A, Wu B, Yang Y, Wan L, Tan P, Huang J, Lu Y. A novel compound heterozygous mutation of MYSM1 gene in a patient with bone marrow failure syndrome 4. Br J Biomed Sci 2021; 78:239-243. [PMID: 33618624 DOI: 10.1080/09674845.2021.1894706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- X Zhan
- Department of Childhood Hematology, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - A Zhao
- Department of Childhood Hematology, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - B Wu
- Department of Childhood Hematology, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Y Yang
- Department of Childhood Hematology, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - L Wan
- Department of Childhood Hematology, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - P Tan
- Department of Childhood Hematology, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - J Huang
- Department of Childhood Hematology, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Y Lu
- Department of Childhood Hematology, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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3
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Belle JI, Wang H, Fiore A, Petrov JC, Lin YH, Feng CH, Nguyen TTM, Tung J, Campeau PM, Behrends U, Brunet T, Leszinski GS, Gros P, Langlais D, Nijnik A. MYSM1 maintains ribosomal protein gene expression in hematopoietic stem cells to prevent hematopoietic dysfunction. JCI Insight 2020; 5:125690. [PMID: 32641579 DOI: 10.1172/jci.insight.125690] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 05/21/2020] [Indexed: 01/09/2023] Open
Abstract
Ribosomopathies are congenital disorders caused by mutations in the genes encoding ribosomal and other functionally related proteins. They are characterized by anemia, other hematopoietic and developmental abnormalities, and p53 activation. Ribosome assembly requires coordinated expression of many ribosomal protein (RP) genes; however, the regulation of RP gene expression, especially in hematopoietic stem cells (HSCs), remains poorly understood. MYSM1 is a transcriptional regulator essential for HSC function and hematopoiesis. We established that HSC dysfunction in Mysm1 deficiency is driven by p53; however, the mechanisms of p53 activation remained unclear. Here, we describe the transcriptome of Mysm1-deficient mouse HSCs and identify MYSM1 genome-wide DNA binding sites. We establish a direct role for MYSM1 in RP gene expression and show a reduction in protein synthesis in Mysm1-/- HSCs. Loss of p53 in mice fully rescues Mysm1-/- anemia phenotype but not RP gene expression, indicating that RP gene dysregulation is a direct outcome of Mysm1 deficiency and an upstream mediator of Mysm1-/- phenotypes through p53 activation. We characterize a patient with a homozygous nonsense MYSM1 gene variant, and we demonstrate reduced protein synthesis and increased p53 levels in patient hematopoietic cells. Our work provides insights into the specialized mechanisms regulating RP gene expression in HSCs and establishes a common etiology of MYSM1 deficiency and ribosomopathy syndromes.
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Affiliation(s)
- Jad I Belle
- Department of Physiology.,McGill University Research Centre on Complex Traits, and
| | - HanChen Wang
- Department of Physiology.,McGill University Research Centre on Complex Traits, and.,Department of Human Genetics, McGill University, Quebec, Canada
| | - Amanda Fiore
- Department of Physiology.,McGill University Research Centre on Complex Traits, and
| | - Jessica C Petrov
- Department of Physiology.,McGill University Research Centre on Complex Traits, and
| | - Yun Hsiao Lin
- Department of Physiology.,McGill University Research Centre on Complex Traits, and
| | - Chu-Han Feng
- Department of Physiology.,McGill University Research Centre on Complex Traits, and
| | - Thi Tuyet Mai Nguyen
- Centre Hospitalier Universitaire St. Justine Research Center, University of Montreal, Quebec, Canada
| | - Jacky Tung
- Department of Physiology.,McGill University Research Centre on Complex Traits, and
| | - Philippe M Campeau
- Centre Hospitalier Universitaire St. Justine Research Center, University of Montreal, Quebec, Canada
| | | | - Theresa Brunet
- Institute of Human Genetics, Technische Universität München (TUM), Munich, Germany
| | - Gloria Sarah Leszinski
- Institute of Human Genetics, Technische Universität München (TUM), Munich, Germany.,Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, Germany
| | - Philippe Gros
- McGill University Research Centre on Complex Traits, and.,Department of Biochemistry and.,The Rosalind and Morris Goodman Cancer Research Centre, McGill University, Quebec, Canada
| | - David Langlais
- McGill University Research Centre on Complex Traits, and.,Department of Human Genetics, McGill University, Quebec, Canada.,McGill University Genome Centre, Montreal, Quebec, Canada
| | - Anastasia Nijnik
- Department of Physiology.,McGill University Research Centre on Complex Traits, and
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4
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Fiore A, Liang Y, Lin YH, Tung J, Wang H, Langlais D, Nijnik A. Deubiquitinase MYSM1 in the Hematopoietic System and beyond: A Current Review. Int J Mol Sci 2020; 21:ijms21083007. [PMID: 32344625 PMCID: PMC7216186 DOI: 10.3390/ijms21083007] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 04/19/2020] [Accepted: 04/20/2020] [Indexed: 01/21/2023] Open
Abstract
MYSM1 has emerged as an important regulator of hematopoietic stem cell function, blood cell production, immune response, and other aspects of mammalian physiology. It is a metalloprotease family protein with deubiquitinase catalytic activity, as well as SANT and SWIRM domains. MYSM1 normally localizes to the nucleus, where it can interact with chromatin and regulate gene expression, through deubiquitination of histone H2A and non-catalytic contacts with other transcriptional regulators. A cytosolic form of MYSM1 protein was also recently described and demonstrated to regulate signal transduction pathways of innate immunity, by promoting the deubiquitination of TRAF3, TRAF6, and RIP2. In this work we review the current knowledge on the molecular mechanisms of action of MYSM1 protein in transcriptional regulation, signal transduction, and potentially other cellular processes. The functions of MYSM1 in different cell types and aspects of mammalian physiology are also reviewed, highlighting the key checkpoints in hematopoiesis, immunity, and beyond regulated by MYSM1. Importantly, mutations in MYSM1 in human were recently linked to a rare hereditary disorder characterized by leukopenia, anemia, and other hematopoietic and developmental abnormalities. Our growing knowledge of MYSM1 functions and mechanisms of actions sheds important insights into its role in mammalian physiology and the etiology of the MYSM1-deficiency disorder in human.
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Affiliation(s)
- Amanda Fiore
- Department of Physiology, McGill University, Montreal, QC 3655, Canada; (A.F.); (Y.L.); (Y.H.L.); (J.T.); (H.W.)
- Research Centre on Complex Traits, McGill University, Montreal, QC 3649, Canada;
| | - Yue Liang
- Department of Physiology, McGill University, Montreal, QC 3655, Canada; (A.F.); (Y.L.); (Y.H.L.); (J.T.); (H.W.)
- Research Centre on Complex Traits, McGill University, Montreal, QC 3649, Canada;
| | - Yun Hsiao Lin
- Department of Physiology, McGill University, Montreal, QC 3655, Canada; (A.F.); (Y.L.); (Y.H.L.); (J.T.); (H.W.)
- Research Centre on Complex Traits, McGill University, Montreal, QC 3649, Canada;
| | - Jacky Tung
- Department of Physiology, McGill University, Montreal, QC 3655, Canada; (A.F.); (Y.L.); (Y.H.L.); (J.T.); (H.W.)
- Research Centre on Complex Traits, McGill University, Montreal, QC 3649, Canada;
| | - HanChen Wang
- Department of Physiology, McGill University, Montreal, QC 3655, Canada; (A.F.); (Y.L.); (Y.H.L.); (J.T.); (H.W.)
- Research Centre on Complex Traits, McGill University, Montreal, QC 3649, Canada;
- Department of Human Genetics, McGill University, Montreal, QC 3640, Canada
| | - David Langlais
- Research Centre on Complex Traits, McGill University, Montreal, QC 3649, Canada;
- Department of Human Genetics, McGill University, Montreal, QC 3640, Canada
- McGill University Genome Centre, Montreal, QC 740, Canada
| | - Anastasia Nijnik
- Department of Physiology, McGill University, Montreal, QC 3655, Canada; (A.F.); (Y.L.); (Y.H.L.); (J.T.); (H.W.)
- Research Centre on Complex Traits, McGill University, Montreal, QC 3649, Canada;
- Correspondence: ; Tel.: +1-514-398-5567
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5
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Lin YH, Forster M, Liang Y, Yu M, Wang H, Robert F, Langlais D, Pelletier J, Clare S, Nijnik A. USP44 is dispensable for normal hematopoietic stem cell function, lymphocyte development, and B-cell-mediated immune response in a mouse model. Exp Hematol 2019; 72:1-8. [PMID: 30639577 DOI: 10.1016/j.exphem.2019.01.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 01/02/2019] [Accepted: 01/06/2019] [Indexed: 02/06/2023]
Abstract
Ubiquitin-specific protease 44 (USP44) is a nuclear protein with deubiquitinase (DUB) catalytic activity that has been implicated as an important regulator of cell cycle progression, gene expression, and genomic stability. Dysregulation in the molecular machinery controlling cell proliferation, gene expression, and genomic stability in human or mouse is commonly linked to hematopoietic dysfunction, immunodeficiency, and cancer. We therefore set out to explore the role of USP44 in hematopoietic and immune systems through characterization of a Usp44-deficient mouse model. We report that USP44 is dispensable for the maintenance of hematopoietic stem cell numbers and function under homeostatic conditions, and also after irradiation or serial transplantation. USP44 is also not required for normal lymphocyte development. Usp44-deficient B cells show normal activation, proliferation, and immunoglobulin class switching in response to in vitro stimulation, and Usp44-deficient mice mount normal antibody response to immunization. We also tested the effects of USP44 deficiency on disease progression and survival in the Emu-myc model of mouse B-cell lymphoma and observed a trend toward earlier lethality of Usp44-/- Emu-myc mice; however, this did not reach statistical significance. Overall, we conclude that USP44 is dispensable for the normal physiology of hematopoietic and immune systems, and its functions in these systems are likely redundant with other USP family proteins.
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Affiliation(s)
- Yun Hsiao Lin
- Department of Physiology, McGill University, Montreal, QC, Canada; McGill University Centre on Complex Traits, McGill University, Montreal, QC, Canada
| | - Michael Forster
- Department of Physiology, McGill University, Montreal, QC, Canada; McGill University Centre on Complex Traits, McGill University, Montreal, QC, Canada
| | - Yue Liang
- Department of Physiology, McGill University, Montreal, QC, Canada; McGill University Centre on Complex Traits, McGill University, Montreal, QC, Canada
| | - Mansen Yu
- Department of Physiology, McGill University, Montreal, QC, Canada; McGill University Centre on Complex Traits, McGill University, Montreal, QC, Canada
| | - HanChen Wang
- Department of Physiology, McGill University, Montreal, QC, Canada; McGill University Centre on Complex Traits, McGill University, Montreal, QC, Canada
| | - Francis Robert
- Department of Biochemistry, McGill University, Montreal, QC, Canada
| | - David Langlais
- McGill University Centre on Complex Traits, McGill University, Montreal, QC, Canada; Department of Human Genetics, McGill University, Montreal, QC, Canada; McGill University and Genome Quebec Innovation Centre, Montreal, QC, Canada
| | - Jerry Pelletier
- Department of Biochemistry, McGill University, Montreal, QC, Canada; The Rosalind and Morris Goodman Cancer Research Centre, McGill University, QC, Canada
| | - Simon Clare
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK
| | - Anastasia Nijnik
- Department of Physiology, McGill University, Montreal, QC, Canada; McGill University Centre on Complex Traits, McGill University, Montreal, QC, Canada.
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6
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Haffner-Luntzer M, Kovtun A, Fischer V, Prystaz K, Hainzl A, Kroeger CM, Krikki I, Brinker TJ, Ignatius A, Gatzka M. Loss of p53 compensates osteopenia in murine Mysm1 deficiency. FASEB J 2018; 32:1957-1968. [PMID: 29203593 DOI: 10.1096/fj.201700871r] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Histone modifications critically contribute to the epigenetic orchestration of bone homeostasis-in part, by modifying the access of transcription factors to specific genes involved in the osteogenic differentiation process of bone marrow mesenchymal stem cells (MSCs) and osteoblasts. Based on our previous finding that histone H2A deubiquitinase 2A-DUB/Mysm1 interacts with the p53 axis in hematopoiesis and tissue development, we analyzed the molecular basis of the skeletal phenotype of Mysm1-deficient mice and dissected the underlying p53-dependent and -independent mechanisms. Visible morphologic, skeletal deformations of young Mysm1-deficient mice-including a kinked and truncated tail and shortened long bones-were associated with osteopenia of long bones. On the cellular level, Mysm1-deficient primary osteoblasts displayed reduced potential to differentiate into mature osteoblasts, as indicated by decreased expression of osteogenic markers. Reduced osteogenic differentiation capacity of Mysm1-deficient osteoblasts was accompanied by an impaired induction of osteogenic transcription factor Runx2. Osteogenic differentiation of Mysm1-/- MSCs, however, was not compromised in vitro. In line with defective hematopoietic development of Mysm1-deficient mice, Mysm1-/- osteoclasts had reduced resorption activity and were more prone to apoptosis in TUNEL assays. Skeletal alterations and osteopenia of Mysm1-deficient mice were phenotypically completely rescued by simultaneous ablation of p53 in p53-/-Mysm1-/- double-deficient mice-although p53 deficiency did not restore Runx2 expression in Mysm1-/- osteoblasts on the molecular level but, instead, enhanced proliferation and osteogenic differentiation of MSCs. In summary, our results demonstrate novel roles for Mysm1 in osteoblast differentiation and osteoclast formation, resulting in osteopenia in Mysm1-deficient mice that could be abrogated by the loss of p53 from increased osteogenic differentiation of Mysm1-/-p53-/- MSCs.-Haffner-Luntzer, M., Kovtun, A., Fischer, V., Prystaz, K., Hainzl, A., Kroeger, C. M., Krikki, I., Brinker, T. J., Ignatius, A., Gatzka, M. Loss of p53 compensates osteopenia in murine Mysm1 deficiency.
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Affiliation(s)
- Melanie Haffner-Luntzer
- Institute of Orthopaedic Research and Biomechanics, University of Ulm, Ulm, Germany.,Trauma Research Centre, University of Ulm, Ulm, Germany
| | - Anna Kovtun
- Institute of Orthopaedic Research and Biomechanics, University of Ulm, Ulm, Germany.,Trauma Research Centre, University of Ulm, Ulm, Germany
| | - Verena Fischer
- Institute of Orthopaedic Research and Biomechanics, University of Ulm, Ulm, Germany.,Trauma Research Centre, University of Ulm, Ulm, Germany
| | - Katja Prystaz
- Institute of Orthopaedic Research and Biomechanics, University of Ulm, Ulm, Germany.,Trauma Research Centre, University of Ulm, Ulm, Germany
| | - Adelheid Hainzl
- Department of Dermatology and Allergic Diseases, University of Ulm, Ulm, Germany
| | - Carsten M Kroeger
- Department of Dermatology and Allergic Diseases, University of Ulm, Ulm, Germany
| | - Ioanna Krikki
- Department of Dermatology and Allergic Diseases, University of Ulm, Ulm, Germany
| | - Titus J Brinker
- Department of Dermatology, University Hospital Heidelberg, Heidelberg, Germany.,Department of National Center for Tumor Diseases, University Hospital Heidelberg, Heidelberg, Germany
| | - Anita Ignatius
- Institute of Orthopaedic Research and Biomechanics, University of Ulm, Ulm, Germany.,Trauma Research Centre, University of Ulm, Ulm, Germany
| | - Martina Gatzka
- Department of Dermatology and Allergic Diseases, University of Ulm, Ulm, Germany
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