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Jensen CH, Johnsen RH, Eskildsen T, Baun C, Ellman DG, Fang S, Bak ST, Hvidsten S, Larsen LA, Rosager AM, Riber LP, Schneider M, De Mey J, Thomassen M, Burton M, Uchida S, Laborda J, Andersen DC. Pericardial delta like non-canonical NOTCH ligand 1 (Dlk1) augments fibrosis in the heart through epithelial to mesenchymal transition. Clin Transl Med 2024; 14:e1565. [PMID: 38328889 PMCID: PMC10851088 DOI: 10.1002/ctm2.1565] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 02/09/2024] Open
Abstract
BACKGROUND Heart failure due to myocardial infarction (MI) involves fibrosis driven by epicardium-derived cells (EPDCs) and cardiac fibroblasts, but strategies to inhibit and provide cardio-protection remains poor. The imprinted gene, non-canonical NOTCH ligand 1 (Dlk1), has previously been shown to mediate fibrosis in the skin, lung and liver, but very little is known on its effect in the heart. METHODS Herein, human pericardial fluid/plasma and tissue biopsies were assessed for DLK1, whereas the spatiotemporal expression of Dlk1 was determined in mouse hearts. The Dlk1 heart phenotype in normal and MI hearts was assessed in transgenic mice either lacking or overexpressing Dlk1. Finally, in/ex vivo cell studies provided knowledge on the molecular mechanism. RESULTS Dlk1 was demonstrated in non-myocytes of the developing human myocardium but exhibited a restricted pericardial expression in adulthood. Soluble DLK1 was twofold higher in pericardial fluid (median 45.7 [34.7 (IQR)) μg/L] from cardiovascular patients (n = 127) than in plasma (median 26.1 μg/L [11.1 (IQR)]. The spatial and temporal expression pattern of Dlk1 was recapitulated in mouse and rat hearts. Similar to humans lacking Dlk1, adult Dlk1-/- mice exhibited a relatively mild developmental, although consistent cardiac phenotype with some abnormalities in heart size, shape, thorax orientation and non-myocyte number, but were functionally normal. However, after MI, scar size was substantially reduced in Dlk1-/- hearts as compared with Dlk1+/+ littermates. In line, high levels of Dlk1 in transgenic mice Dlk1fl/fl xWT1GFPCre and Dlk1fl/fl xαMHCCre/+Tam increased scar size following MI. Further mechanistic and cellular insight demonstrated that pericardial Dlk1 mediates cardiac fibrosis through epithelial to mesenchymal transition (EMT) of the EPDC lineage by maintaining Integrin β8 (Itgb8), a major activator of transforming growth factor β and EMT. CONCLUSIONS Our results suggest that pericardial Dlk1 embraces a, so far, unnoticed role in the heart augmenting cardiac fibrosis through EMT. Monitoring DLK1 levels as well as targeting pericardial DLK1 may thus offer new venues for cardio-protection.
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Affiliation(s)
- Charlotte Harken Jensen
- Andersen Group, Department of Clinical BiochemistryOdense University HospitalOdenseDenmark
- Clinical Institute, University of Southern DenmarkOdenseDenmark
| | - Rikke Helin Johnsen
- Andersen Group, Department of Clinical BiochemistryOdense University HospitalOdenseDenmark
- Clinical Institute, University of Southern DenmarkOdenseDenmark
| | - Tilde Eskildsen
- Andersen Group, Department of Clinical BiochemistryOdense University HospitalOdenseDenmark
- Department of Cardiovascular and Renal ResearchInstitute of Molecular Medicine, University of Southern DenmarkOdenseDenmark
| | - Christina Baun
- Department of Nuclear MedicineOdense University HospitalOdenseDenmark
| | - Ditte Gry Ellman
- Andersen Group, Department of Clinical BiochemistryOdense University HospitalOdenseDenmark
- Clinical Institute, University of Southern DenmarkOdenseDenmark
| | - Shu Fang
- Andersen Group, Department of Clinical BiochemistryOdense University HospitalOdenseDenmark
- Clinical Institute, University of Southern DenmarkOdenseDenmark
| | - Sara Thornby Bak
- Andersen Group, Department of Clinical BiochemistryOdense University HospitalOdenseDenmark
- Clinical Institute, University of Southern DenmarkOdenseDenmark
| | - Svend Hvidsten
- Department of Nuclear MedicineOdense University HospitalOdenseDenmark
| | - Lars Allan Larsen
- Department of Cellular and Molecular MedicineUniversity of CopenhagenCopenhagenDenmark
| | - Ann Mari Rosager
- Department of Clinical PathologySydvestjysk HospitalEsbjergDenmark
| | - Lars Peter Riber
- Clinical Institute, University of Southern DenmarkOdenseDenmark
- Department of Cardiothoracic and Vascular SurgeryOdense University HospitalOdenseDenmark
| | - Mikael Schneider
- Andersen Group, Department of Clinical BiochemistryOdense University HospitalOdenseDenmark
- Clinical Institute, University of Southern DenmarkOdenseDenmark
- Department of Cardiovascular and Renal ResearchInstitute of Molecular Medicine, University of Southern DenmarkOdenseDenmark
| | - Jo De Mey
- Department of Cardiovascular and Renal ResearchInstitute of Molecular Medicine, University of Southern DenmarkOdenseDenmark
| | - Mads Thomassen
- Clinical Institute, University of Southern DenmarkOdenseDenmark
- Department of Clinical GeneticsOdense University HospitalOdenseDenmark
| | - Mark Burton
- Clinical Institute, University of Southern DenmarkOdenseDenmark
- Department of Clinical GeneticsOdense University HospitalOdenseDenmark
| | - Shizuka Uchida
- Center for RNA MedicineDepartment of Clinical MedicineAalborg UniversityCopenhagenDenmark
| | - Jorge Laborda
- Department of Inorganic and Organic Chemistry and BiochemistryUniversity of Castilla‐La Mancha Medical SchoolAlbaceteSpain
| | - Ditte Caroline Andersen
- Andersen Group, Department of Clinical BiochemistryOdense University HospitalOdenseDenmark
- Clinical Institute, University of Southern DenmarkOdenseDenmark
- Department of Cardiovascular and Renal ResearchInstitute of Molecular Medicine, University of Southern DenmarkOdenseDenmark
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2
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Dhumale P, Nielsen JV, Hansen ACS, Burton M, Beck HC, Jørgensen MG, Toyserkani NM, Haahr MK, Hansen ST, Lund L, Thomassen M, Sørensen JA, Andersen DC, Jensen CH, Sheikh SP. CD31 defines a subpopulation of human adipose-derived regenerative cells with potent angiogenic effects. Sci Rep 2023; 13:14401. [PMID: 37658225 PMCID: PMC10474028 DOI: 10.1038/s41598-023-41535-1] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/28/2023] [Indexed: 09/03/2023] Open
Abstract
Cellular heterogeneity represents a major challenge for regenerative treatment using freshly isolated Adipose Derived Regenerative Cells (ADRCs). Emerging data suggest superior efficacy of ADRCs as compared to the ex vivo expanded and more homogeneous ADRCs (= ASCs) for indications involving (micro)vascular deficiency, however, it remains unknown which ADRC cell subtypes account for the improvement. Surprisingly, we found regarding erectile dysfunction (ED) that the number of injected CD31+ ADRCs correlated positively with erectile function 12 months after one bolus of autologous ADRCs. Comprehensive in vitro and ex vivo analyses confirmed superior pro-angiogenic and paracrine effects of human CD31+ enriched ADRCs compared to the corresponding CD31- and parent ADRCs. When CD31+, CD31- and ADRCs were co-cultured in aortic ring- and corpus cavernous tube formation assays, the CD31+ ADRCs induced significantly higher tube development. This effect was corroborated using conditioned medium (CM), while quantitative mass spectrometric analysis suggested that this is likely explained by secretory pro-angiogenic proteins including DKK3, ANGPT2, ANAX2 and VIM, all enriched in CD31+ ADRC CM. Single-cell RNA sequencing showed that transcripts of the upregulated and secreted proteins were present in 9 endothelial ADRC subsets including endothelial progenitor cells in the heterogenous non-cultured ADRCs. Our data suggest that the vascular benefit of using ADRCs in regenerative medicine is dictated by CD31+ ADRCs.
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Affiliation(s)
- Pratibha Dhumale
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Clinical Biochemistry, Odense University Hospital (OUH), Odense, Denmark
| | - Jakob Vennike Nielsen
- Department of Clinical Biochemistry, Odense University Hospital (OUH), Odense, Denmark
| | | | - Mark Burton
- Department of Clinical Genetics, OUH, Odense, Denmark
| | - Hans Christian Beck
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Clinical Biochemistry, Odense University Hospital (OUH), Odense, Denmark
| | - Mads Gustaf Jørgensen
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Research Unit for Plastic Surgery, Department of Clinical Research, SDU, Odense, Denmark
| | - Navid Mohamadpour Toyserkani
- Department of Plastic Surgery, OUH, Odense, Denmark
- Research Unit for Plastic Surgery, Department of Clinical Research, SDU, Odense, Denmark
| | | | - Sabrina Toft Hansen
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Urology, OUH, Odense, Denmark
| | - Lars Lund
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Urology, OUH, Odense, Denmark
| | - Mads Thomassen
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Clinical Genetics, OUH, Odense, Denmark
| | - Jens Ahm Sørensen
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Plastic Surgery, OUH, Odense, Denmark
- Research Unit for Plastic Surgery, Department of Clinical Research, SDU, Odense, Denmark
| | - Ditte Caroline Andersen
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Clinical Biochemistry, Odense University Hospital (OUH), Odense, Denmark
| | - Charlotte Harken Jensen
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Clinical Biochemistry, Odense University Hospital (OUH), Odense, Denmark
| | - Søren Paludan Sheikh
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark.
- Department of Clinical Biochemistry, Odense University Hospital (OUH), Odense, Denmark.
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3
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Bak ST, Harvald EB, Ellman DG, Mathiesen SB, Chen T, Fang S, Andersen KS, Fenger CD, Burton M, Thomassen M, Andersen DC. Ploidy-stratified single cardiomyocyte transcriptomics map Zinc Finger E-Box Binding Homeobox 1 to underly cardiomyocyte proliferation before birth. Basic Res Cardiol 2023; 118:8. [PMID: 36862248 PMCID: PMC9981540 DOI: 10.1007/s00395-023-00979-2] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 12/31/2022] [Accepted: 01/21/2023] [Indexed: 03/03/2023]
Abstract
Whereas cardiomyocytes (CMs) in the fetal heart divide, postnatal CMs fail to undergo karyokinesis and/or cytokinesis and therefore become polyploid or binucleated, a key process in terminal CM differentiation. This switch from a diploid proliferative CM to a terminally differentiated polyploid CM remains an enigma and seems an obstacle for heart regeneration. Here, we set out to identify the transcriptional landscape of CMs around birth using single cell RNA sequencing (scRNA-seq) to predict transcription factors (TFs) involved in CM proliferation and terminal differentiation. To this end, we established an approach combining fluorescence activated cell sorting (FACS) with scRNA-seq of fixed CMs from developing (E16.5, P1, and P5) mouse hearts, and generated high-resolution single-cell transcriptomic maps of in vivo diploid and tetraploid CMs, increasing the CM resolution. We identified TF-networks regulating the G2/M phases of developing CMs around birth. ZEB1 (Zinc Finger E-Box Binding Homeobox 1), a hereto unknown TF in CM cell cycling, was found to regulate the highest number of cell cycle genes in cycling CMs at E16.5 but was downregulated around birth. CM ZEB1-knockdown reduced proliferation of E16.5 CMs, while ZEB1 overexpression at P0 after birth resulted in CM endoreplication. These data thus provide a ploidy stratified transcriptomic map of developing CMs and bring new insight to CM proliferation and endoreplication identifying ZEB1 as a key player in these processes.
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Affiliation(s)
- Sara Thornby Bak
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Eva Bang Harvald
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Ditte Gry Ellman
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Sabrina Bech Mathiesen
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Ting Chen
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Shu Fang
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Kristian Skriver Andersen
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Clinical Institute, University of Southern Denmark, Odense, Denmark
| | | | - Mark Burton
- Clinical Institute, University of Southern Denmark, Odense, Denmark
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
| | - Mads Thomassen
- Clinical Institute, University of Southern Denmark, Odense, Denmark
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
| | - Ditte Caroline Andersen
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark.
- Clinical Institute, University of Southern Denmark, Odense, Denmark.
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Mortensen SB, Hansen AE, Byg KE, Diederichsen L, Schade Larsen C, Goldschmidt MI, Jakobsen MA, Assing K, Lambertsen KL, Andersen DC, Johansen IS. Monocyte secretory profiling in a clinical and MEFV genotype-characterized cohort of Danish familial Mediterranean fever patients: diagnostic potential of CCL1 and CXCL1. Scand J Rheumatol 2023; 52:181-189. [PMID: 35258407 DOI: 10.1080/03009742.2022.2028382] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE The autoinflammatory disease familial Mediterranean fever (FMF), characterized by recurrent attacks of sterile fever, serosal, and/or synovial inflammation, is caused by variants in the Mediterranean fever gene, MEFV, coding for the pyrin inflammasome sensor. The diagnosis of FMF is mainly based on clinical symptoms and confirmed by detection of disease-associated MEFV variants. However, the diagnosis is challenging among patients carrying variants of uncertain clinical significance (VUS). In this study, we aimed to identify potential FMF discriminatory diagnostic markers in a cohort of clinically characterized FMF patients. METHOD We established a cohort of clinically and MEFV genotype-characterized FMF patients by enrolling patients from major Danish hospitals (n = 91). The secretory profile of pyrin inflammasome-activated monocytes from healthy donors (HDs) and MEFV-characterized FMF patients (n = 28) was assessed by analysing cell supernatants for a custom-designed panel of 23 cytokines, chemokines, and soluble tumour necrosis factor receptors associated with monocyte and macrophage function. RESULTS MEFV genotypes in Danish FMF patients were associated with age at symptom onset (p < 0.05), FMF among relatives (p < 0.01), proportion of patients in colchicine treatment (p < 0.01), and treatment response (p < 0.05). Secretion of chemokines CCL1 and CXCL1 from pyrin-activated FMF monocytes was significantly decreased compared to HDs (p < 0.05), and could discriminate FMF patients with 'non-confirmatory' MEFV genotypes from HDs with 80.0% and 70.0% sensitivity for CCL1 and CXCL1, respectively (p < 0.05). CONCLUSION Our data suggest that a functional diagnostic assay based on CCL1 or CXCL1 levels in pyrin-activated patient monocytes may contribute to FMF diagnosis in patients with VUS.
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Affiliation(s)
- S B Mortensen
- Research Unit for Infectious Diseases, Odense University Hospital/University of Southern Denmark, Odense, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Department of Clinical Immunology, Odense University Hospital, Odense, Denmark.,OPEN, Open Patient Data Explorative Network, Odense University Hospital, Odense, Denmark
| | - A E Hansen
- Department of Infectious Diseases, Copenhagen University Hospital, Hvidovre, Denmark
| | - K-E Byg
- Department of Rheumatology, Odense University Hospital, Odense, Denmark.,Department of Neurology, Odense University Hospital, Odense, Denmark.,BRIDGE - Brain Research - Inter-Disciplinary Guided Excellence; Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - L Diederichsen
- Department of Rheumatology, Odense University Hospital, Odense, Denmark.,Department of Rheumatology, Copenhagen University Hospital, Copenhagen, Denmark
| | - C Schade Larsen
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - M I Goldschmidt
- Department of Infectious Diseases, Copenhagen University Hospital, Hvidovre, Denmark
| | - M A Jakobsen
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Department of Clinical Immunology, Odense University Hospital, Odense, Denmark
| | - K Assing
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Department of Clinical Immunology, Odense University Hospital, Odense, Denmark
| | - K L Lambertsen
- Department of Neurology, Odense University Hospital, Odense, Denmark.,BRIDGE - Brain Research - Inter-Disciplinary Guided Excellence; Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Department of Neurobiology Research; Institute for Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - D C Andersen
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Laboratory of Molecular and Cellular Cardiology/Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - I S Johansen
- Research Unit for Infectious Diseases, Odense University Hospital/University of Southern Denmark, Odense, Denmark
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5
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Stengaard K, Hejbøl EK, Jensen PT, Degn M, Ta TML, Stensballe A, Andersen DC, Schrøder HD, Lambertsen KL, Frich LH. Early-stage inflammation changes in supraspinatus muscle after rotator cuff tear. J Shoulder Elbow Surg 2022; 31:1344-1356. [PMID: 35150831 DOI: 10.1016/j.jse.2021.12.046] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 12/12/2021] [Accepted: 12/25/2021] [Indexed: 02/01/2023]
Abstract
BACKGROUND Rotator cuff (RC) tendon tear leads to impaired shoulder function and pain. The supraspinatus (SS) tendon is most often affected, but the biological response of the SS muscle to SS tendon tear is largely unknown. This study aimed to investigate time-dependent muscle inflammation, degeneration, fatty infiltration, and regeneration in experimental SS tear conditions. METHODS Forty-five C57BL/6 mice were subjected to SS tendon tear and allowed to recover for 1, 3, 5, 7, 14, or 28 days. The extent of muscle damage was examined using histologic, flow cytometric, proteomic, and chemiluminescence analyses. RESULTS We found that muscle inflammation peaked around day 5 with increased monocyte infiltration and increased cytokine levels in the ipsilateral compared to the contralateral SS muscle. Bioinformatics analysis of proteomics on mice that survived 5 days after RC tendon tear revealed upregulated proteins involved in "neutrophil activation involved in immune response" and "extracellular matrix organization," whereas "skeletal muscle tissue development and contraction" and "respiratory electron transport chain" were among the most downregulated. Histologic analysis of collagen showed increased collagen accumulation and fatty infiltration of the ipsilateral SS over time. Finally, we observed time- and lesion-dependent changes in satellite cell and fibro-adipogenic progenitor populations. CONCLUSION Altogether, we demonstrate that the SS muscle shows severe signs of acute inflammation, early degeneration, and fatty infiltration, as well as reduced regenerative potential following SS tendon tear.
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Affiliation(s)
- Kira Stengaard
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Eva Kildall Hejbøl
- Department of Orthopedics, Hospital Sønderjylland, Region of Southern Denmark, Denmark
| | - Peter Toft Jensen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Matilda Degn
- Pediatric Oncology Laboratory, Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Thi My Linh Ta
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Allan Stensballe
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Ditte Caroline Andersen
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Institute of Clinical Research, University of Southern, Denmark
| | | | - Kate Lykke Lambertsen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark; Department of Neurology, Odense University Hospital, Odense, Denmark; BRIDGE-Brain Research-Inter-Disciplinary Guided Excellence, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Lars Henrik Frich
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark; Department of Orthopedics, Hospital Sønderjylland, Region of Southern Denmark, Denmark; Orthopedic Research Unit, Department of Regional Health Research, University of Southern Denmark, Odense, Denmark.
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6
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Ellman DG, Slaiman IM, Mathiesen SB, Andersen KS, Hofmeister W, Ober EA, Andersen DC. Apex Resection in Zebrafish ( Danio rerio) as a Model of Heart Regeneration: A Video-Assisted Guide. Int J Mol Sci 2021; 22:5865. [PMID: 34070781 PMCID: PMC8199168 DOI: 10.3390/ijms22115865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/25/2021] [Accepted: 05/25/2021] [Indexed: 11/17/2022] Open
Abstract
Ischemic heart disease is one of the leading causes of deaths worldwide. A major hindrance to resolving this challenge lies in the mammalian hearts inability to regenerate after injury. In contrast, zebrafish retain a regenerative capacity of the heart throughout their lifetimes. Apex resection (AR) is a popular zebrafish model for studying heart regeneration, and entails resecting 10-20% of the heart in the apex region, whereafter the regeneration process is monitored until the heart is fully regenerated within 60 days. Despite this popularity, video tutorials describing this technique in detail are lacking. In this paper we visualize and describe the entire AR procedure including anaesthesia, surgery, and recovery. In addition, we show that the concentration and duration of anaesthesia are important parameters to consider, to balance sufficient levels of sedation and minimizing mortality. Moreover, we provide examples of how zebrafish heart regeneration can be assessed both in 2D (immunohistochemistry of heart sections) and 3D (analyses of whole, tissue cleared hearts using multiphoton imaging). In summary, this paper aims to aid beginners in establishing and conducting the AR model in their laboratory, but also to spur further interest in improving the model and its evaluation.
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Affiliation(s)
- Ditte Gry Ellman
- DCA-Lab, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløwsvej 25, 1. Floor, 5000 Odense C, Denmark; (D.G.E.); (I.M.S.); (S.B.M.); (K.S.A.); (W.H.)
- DCA-Lab, Institute of Clinical Research, University of Southern Denmark, J. B. Winsløwsvej 19, 5000 Odense C, Denmark
| | - Ibrahim Mohamad Slaiman
- DCA-Lab, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløwsvej 25, 1. Floor, 5000 Odense C, Denmark; (D.G.E.); (I.M.S.); (S.B.M.); (K.S.A.); (W.H.)
- DCA-Lab, Institute of Clinical Research, University of Southern Denmark, J. B. Winsløwsvej 19, 5000 Odense C, Denmark
| | - Sabrina Bech Mathiesen
- DCA-Lab, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløwsvej 25, 1. Floor, 5000 Odense C, Denmark; (D.G.E.); (I.M.S.); (S.B.M.); (K.S.A.); (W.H.)
- DCA-Lab, Institute of Clinical Research, University of Southern Denmark, J. B. Winsløwsvej 19, 5000 Odense C, Denmark
| | - Kristian Skriver Andersen
- DCA-Lab, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløwsvej 25, 1. Floor, 5000 Odense C, Denmark; (D.G.E.); (I.M.S.); (S.B.M.); (K.S.A.); (W.H.)
- DCA-Lab, Institute of Clinical Research, University of Southern Denmark, J. B. Winsløwsvej 19, 5000 Odense C, Denmark
| | - Wolfgang Hofmeister
- DCA-Lab, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløwsvej 25, 1. Floor, 5000 Odense C, Denmark; (D.G.E.); (I.M.S.); (S.B.M.); (K.S.A.); (W.H.)
- DCA-Lab, Institute of Clinical Research, University of Southern Denmark, J. B. Winsløwsvej 19, 5000 Odense C, Denmark
- Faculty of Health and Medical Sciences, DanStem (Novo Nordisk Foundation Center for Stem Cell Biology), Blegdamsvej 3B, 2200 København H, Denmark;
| | - Elke Annette Ober
- Faculty of Health and Medical Sciences, DanStem (Novo Nordisk Foundation Center for Stem Cell Biology), Blegdamsvej 3B, 2200 København H, Denmark;
| | - Ditte Caroline Andersen
- DCA-Lab, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløwsvej 25, 1. Floor, 5000 Odense C, Denmark; (D.G.E.); (I.M.S.); (S.B.M.); (K.S.A.); (W.H.)
- DCA-Lab, Institute of Clinical Research, University of Southern Denmark, J. B. Winsløwsvej 19, 5000 Odense C, Denmark
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Fang S, Ahlmann AH, Langhorn L, Hussein K, Sørensen JA, Guan X, Sheikh SP, Riber LP, Andersen DC. Small diameter polycaprolactone vascular grafts are patent in sheep carotid bypass but require antithrombotic therapy. Regen Med 2021; 16:117-130. [PMID: 33764157 DOI: 10.2217/rme-2020-0171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background: Polycaprolactone (PCL) scaffolds exhibit high biocompatibility and are attractive as vascular conduits. Materials & methods: PCL tubes were cultivated in bioreactor with human adipose regenerative cells to assess ex vivo cytocompatibility, whereas in vivo PCL tube patency was evaluated in sheep carotid bypass with and without antithrombotic treatment. Results: Ex vivo results revealed increasing adipose regenerative cells on PCL using dynamic bioreactor culturing. In vivo data showed that 67% (2/3) of grafts in the antithrombotic group were patent at day 28, while 100% (3/3) of control grafts were occluded already during the first week due to thrombosis. Histology showed that patent PCL grafts were recellularized by host cells. Conclusion: PCL tubes may work as small diameter vascular scaffolds under antithrombotic treatment.
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Affiliation(s)
- Shu Fang
- Laboratory of Molecular & Cellular Cardiology, Department of Clinical Biochemistry & Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, Odense C 5000, Denmark.,The Danish Regenerative Center, Odense University Hospital, J. B. Winsløws Vej 4, Odense C 5000, Denmark.,Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, Odense C 5000, Denmark
| | - Alexander Høgsted Ahlmann
- Laboratory of Molecular & Cellular Cardiology, Department of Clinical Biochemistry & Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, Odense C 5000, Denmark.,Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, Odense C 5000, Denmark
| | - Louise Langhorn
- Biomedical Laboratory, University of Southern Denmark, J.B. Winsløws Vej 23, Odense C 5000, Denmark
| | - Kamal Hussein
- Laboratory of Molecular & Cellular Cardiology, Department of Clinical Biochemistry & Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, Odense C 5000, Denmark.,The Danish Regenerative Center, Odense University Hospital, J. B. Winsløws Vej 4, Odense C 5000, Denmark.,Department of Animal Surgery, Faculty of Veterinary Medicine, Assiut University, Assiut 71526, Egypt
| | - Jens Ahm Sørensen
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, Odense C 5000, Denmark.,Department of Plastic Surgery, Odense University Hospital, J.B. Winsløws Vej 4, Odense C 5000, Denmark
| | - Xiaowei Guan
- Department of Photonics Engineering, Technical University of Denmark, Ørsteds Plads Building 345A, Kongens Lyngby 2800, Denmark
| | - Søren Paludan Sheikh
- Laboratory of Molecular & Cellular Cardiology, Department of Clinical Biochemistry & Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, Odense C 5000, Denmark.,The Danish Regenerative Center, Odense University Hospital, J. B. Winsløws Vej 4, Odense C 5000, Denmark.,Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, Odense C 5000, Denmark
| | - Lars Peter Riber
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, Odense C 5000, Denmark.,Department of Cardiothoracic & Vascular Surgery, Odense University Hospital, J.B. Winsløws Vej 4, Odense C 5000, Denmark
| | - Ditte Caroline Andersen
- Laboratory of Molecular & Cellular Cardiology, Department of Clinical Biochemistry & Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, Odense C 5000, Denmark.,The Danish Regenerative Center, Odense University Hospital, J. B. Winsløws Vej 4, Odense C 5000, Denmark.,Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, Odense C 5000, Denmark
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8
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Fang S, Ellman DG, Andersen DC. Review: Tissue Engineering of Small-Diameter Vascular Grafts and Their In Vivo Evaluation in Large Animals and Humans. Cells 2021; 10:713. [PMID: 33807009 PMCID: PMC8005053 DOI: 10.3390/cells10030713] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/10/2021] [Accepted: 03/15/2021] [Indexed: 12/15/2022] Open
Abstract
To date, a wide range of materials, from synthetic to natural or a mixture of these, has been explored, modified, and examined as small-diameter tissue-engineered vascular grafts (SD-TEVGs) for tissue regeneration either in vitro or in vivo. However, very limited success has been achieved due to mechanical failure, thrombogenicity or intimal hyperplasia, and improvements of the SD-TEVG design are thus required. Here, in vivo studies investigating novel and relative long (10 times of the inner diameter) SD-TEVGs in large animal models and humans are identified and discussed, with emphasis on graft outcome based on model- and graft-related conditions. Only a few types of synthetic polymer-based SD-TEVGs have been evaluated in large-animal models and reflect limited success. However, some polymers, such as polycaprolactone (PCL), show favorable biocompatibility and potential to be further modified and improved in the form of hybrid grafts. Natural polymer- and cell-secreted extracellular matrix (ECM)-based SD-TEVGs tested in large animals still fail due to a weak strength or thrombogenicity. Similarly, native ECM-based SD-TEVGs and in-vitro-developed hybrid SD-TEVGs that contain xenogeneic molecules or matrix seem related to a harmful graft outcome. In contrast, allogeneic native ECM-based SD-TEVGs, in-vitro-developed hybrid SD-TEVGs with allogeneic banked human cells or isolated autologous stem cells, and in-body tissue architecture (IBTA)-based SD-TEVGs seem to be promising for the future, since they are suitable in dimension, mechanical strength, biocompatibility, and availability.
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Affiliation(s)
- Shu Fang
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløwsvej 25, 5000 Odense C, Denmark; (D.G.E.); (D.C.A.)
- The Danish Regenerative Center, Odense University Hospital, J. B. Winsløwsvej 4, 5000 Odense C, Denmark
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløwsvej 19, 5000 Odense C, Denmark
| | - Ditte Gry Ellman
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløwsvej 25, 5000 Odense C, Denmark; (D.G.E.); (D.C.A.)
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløwsvej 19, 5000 Odense C, Denmark
| | - Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløwsvej 25, 5000 Odense C, Denmark; (D.G.E.); (D.C.A.)
- The Danish Regenerative Center, Odense University Hospital, J. B. Winsløwsvej 4, 5000 Odense C, Denmark
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløwsvej 19, 5000 Odense C, Denmark
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9
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Zhang L, Kubota M, Nakamura A, Kaji T, Seno S, Uezumi A, Andersen DC, Jensen CH, Fukada SI. Dlk1 regulates quiescence in calcitonin receptor-mutant muscle stem cells. Stem Cells 2021; 39:306-317. [PMID: 33295098 DOI: 10.1002/stem.3312] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 11/20/2020] [Indexed: 12/30/2022]
Abstract
Muscle stem cells, also called muscle satellite cells (MuSCs), are responsible for skeletal muscle regeneration and are sustained in an undifferentiated and quiescent state under steady conditions. The calcitonin receptor (CalcR)-protein kinase A (PKA)-Yes-associated protein 1 (Yap1) axis is one pathway that maintains quiescence in MuSCs. Although CalcR signaling in MuSCs has been identified, the critical CalcR signaling targets are incompletely understood. Here, we show the relevance between the ectopic expression of delta-like non-canonical Notch ligand 1 (Dlk1) and the impaired quiescent state in CalcR-conditional knockout (cKO) MuSCs. Dlk1 expression was rarely detected in both quiescent and proliferating MuSCs in control mice, whereas Dlk1 expression was remarkably increased in CalcR-cKO MuSCs at both the mRNA and protein levels. It is noteworthy that all Ki67+ non-quiescent CalcR-cKO MuSCs express Dlk1, and non-quiescent CalcR-cKO MuSCs are enriched in the Dlk1+ fraction by cell sorting. Using mutant mice, we demonstrated that PKA-activation or Yap1-depletion suppressed Dlk1 expression in CalcR-cKO MuSCs, which suggests that the CalcR-PKA-Yap1 axis inhibits the expression of Dlk1 in quiescent MuSCs. Moreover, the loss of Dlk1 rescued the quiescent state in CalcR-cKO MuSCs, which indicates that the ectopic expression of Dlk1 disturbs quiescence in CalcR-cKO. Collectively, our results suggest that ectopically expressed Dlk1 is responsible for the impaired quiescence in CalcR-cKO MuSCs.
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Affiliation(s)
- Lidan Zhang
- Project for Muscle Stem Cell Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Manami Kubota
- Project for Muscle Stem Cell Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Ayasa Nakamura
- Project for Muscle Stem Cell Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Takayuki Kaji
- Project for Muscle Stem Cell Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Shigeto Seno
- Department of Bioinformatic Engineering, Graduate School of Information Science and Technology, Osaka University, Suita, Osaka, Japan
| | - Akiyoshi Uezumi
- Muscle Aging and Regenerative Medicine, Tokyo Metropolitan Institute of Gerontology (TMIG), Itabashi, Tokyo, Japan
| | - Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense C, Denmark
- Clinical Institute, University of Southern Denmark, Odense C, Denmark
| | - Charlotte Harken Jensen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense C, Denmark
| | - So-Ichiro Fukada
- Project for Muscle Stem Cell Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
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10
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Jørgensen MG, Toyserkani NM, Jensen CH, Andersen DC, Sheikh SP, Sørensen JA. Adipose-derived regenerative cells and lipotransfer in alleviating breast cancer-related lymphedema: An open-label phase I trial with 4 years of follow-up. Stem Cells Transl Med 2021; 10:844-854. [PMID: 33594819 PMCID: PMC8133335 DOI: 10.1002/sctm.20-0394] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 08/21/2020] [Revised: 01/04/2021] [Accepted: 01/07/2021] [Indexed: 12/14/2022] Open
Abstract
Patients with breast cancer‐related lymphedema (BCRL) have reduced quality of life and arm function. Current treatments are palliative, and treatments improving lymphedema are lacking. Preclinical studies have suggested that adipose‐derived regenerative cells (ADRCs) can alleviate lymphedema. We, therefore, aimed to assess whether ADRCs can alleviate lymphedema in clinical reality with long‐term follow‐up. We treated 10 patients with BCRL using ADRCs and a scar‐releasing lipotransfer to the axillary region, and all patients were followed 1, 3, 6, 12, and 48 months after treatment. The primary endpoint was change in arm volume. Secondary endpoints were safety, change in lymphedema symptoms, quality of life, lymphedema‐associated cellulitis, and conservative treatment use. There was no significant decrease in BCRL volume after treatment. However, self‐reported upper extremity disability and arm heaviness and tension improved. Six patients reduced their use of conservative BCRL treatment. Five patients felt that their BCRL had improved substantially, and four of these would redo the treatment. We did not observe any cases of locoregional breast cancer recurrence. In this phase I study with 4 years of follow‐up, axillary delivered ADRCs and lipotransfer were safe and feasible and improved BCRL symptoms and upper extremity function. Randomized controlled trials are needed to confirm the results of this study.
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Affiliation(s)
- Mads Gustaf Jørgensen
- Department of Plastic Surgery, Research Unit for Plastic Surgery, Odense University Hospital, Odense, Denmark.,Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Navid Mohamadpour Toyserkani
- Department of Plastic Surgery, Research Unit for Plastic Surgery, Odense University Hospital, Odense, Denmark.,Department of Plastic Surgery and Burns Treatment, Rigshospitalet, Copenhagen, Denmark
| | - Charlotte Harken Jensen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Ditte Caroline Andersen
- Clinical Institute, University of Southern Denmark, Odense, Denmark.,Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Søren Paludan Sheikh
- Clinical Institute, University of Southern Denmark, Odense, Denmark.,Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Jens Ahm Sørensen
- Department of Plastic Surgery, Research Unit for Plastic Surgery, Odense University Hospital, Odense, Denmark.,Clinical Institute, University of Southern Denmark, Odense, Denmark
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11
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Ellman DG, Lund MC, Nissen M, Nielsen PS, Sørensen C, Lester EB, Thougaard E, Jørgensen LH, Nedospasov SA, Andersen DC, Stubbe J, Brambilla R, Degn M, Lambertsen KL. Conditional Ablation of Myeloid TNF Improves Functional Outcome and Decreases Lesion Size after Spinal Cord Injury in Mice. Cells 2020; 9:E2407. [PMID: 33153044 PMCID: PMC7692197 DOI: 10.3390/cells9112407] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/27/2020] [Accepted: 11/01/2020] [Indexed: 12/17/2022] Open
Abstract
Spinal cord injury (SCI) is a devastating condition consisting of an instant primary mechanical injury followed by a secondary injury that progresses for weeks to months. The cytokine tumor necrosis factor (TNF) plays an important role in the pathophysiology of SCI. We investigated the effect of myeloid TNF ablation (peripheral myeloid cells (macrophages and neutrophils) and microglia) versus central myeloid TNF ablation (microglia) in a SCI contusion model. We show that TNF ablation in macrophages and neutrophils leads to reduced lesion volume and improved functional outcome after SCI. In contrast, TNF ablation in microglia only or TNF deficiency in all cells had no effect. TNF levels tended to be decreased 3 h post-SCI in mice with peripheral myeloid TNF ablation and was significantly decreased 3 days after SCI. Leukocyte and microglia populations and all other cytokines (IL-1β, IL-2, IL-4, IL-5, IL-6, IL-10, IL-12, and IFNγ) and chemokines (CCL2, CCL5, and CXCL1) investigated, in addition to TNFR1 and TNFR2, were comparable between genotypes. Analysis of post-SCI signaling cascades demonstrated that the MAPK kinase SAPK/JNK decreased and neuronal Bcl-XL levels increased post-SCI in mice with ablation of TNF in peripheral myeloid cells. These findings demonstrate that peripheral myeloid cell-derived TNF is pathogenic in SCI.
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Affiliation(s)
- Ditte Gry Ellman
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark; (D.G.E.); (M.C.L.); (M.N.); (P.S.N.); (C.S.); (E.B.L.); (E.T.); (R.B.)
| | - Minna Christiansen Lund
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark; (D.G.E.); (M.C.L.); (M.N.); (P.S.N.); (C.S.); (E.B.L.); (E.T.); (R.B.)
| | - Maiken Nissen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark; (D.G.E.); (M.C.L.); (M.N.); (P.S.N.); (C.S.); (E.B.L.); (E.T.); (R.B.)
| | - Pernille Sveistrup Nielsen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark; (D.G.E.); (M.C.L.); (M.N.); (P.S.N.); (C.S.); (E.B.L.); (E.T.); (R.B.)
| | - Charlotte Sørensen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark; (D.G.E.); (M.C.L.); (M.N.); (P.S.N.); (C.S.); (E.B.L.); (E.T.); (R.B.)
| | - Emilie Boye Lester
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark; (D.G.E.); (M.C.L.); (M.N.); (P.S.N.); (C.S.); (E.B.L.); (E.T.); (R.B.)
| | - Estrid Thougaard
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark; (D.G.E.); (M.C.L.); (M.N.); (P.S.N.); (C.S.); (E.B.L.); (E.T.); (R.B.)
| | - Louise Helskov Jørgensen
- Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark; (L.H.J.); (D.C.A.)
| | - Sergei A. Nedospasov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences and Lomonosov Moscow State University, 119991 Moscow, Russia;
| | - Ditte Caroline Andersen
- Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark; (L.H.J.); (D.C.A.)
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, 5000 Odense, Denmark
- Danish Center for Regenerative Medicine, Odense University Hospital, 5000 Odense, Denmark
| | - Jane Stubbe
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark;
| | - Roberta Brambilla
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark; (D.G.E.); (M.C.L.); (M.N.); (P.S.N.); (C.S.); (E.B.L.); (E.T.); (R.B.)
- The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Matilda Degn
- Pediatric Oncology Laboratory, Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, 2100 Copenhagen, Denmark;
| | - Kate Lykke Lambertsen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark; (D.G.E.); (M.C.L.); (M.N.); (P.S.N.); (C.S.); (E.B.L.); (E.T.); (R.B.)
- Department of Neurology, Odense University Hospital, 5000 Odense, Denmark
- BRIGDE—Brain Research—Inter-Disciplinary Guided Excellence, Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark
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12
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Fang S, Riber SS, Hussein K, Ahlmann AH, Harvald EB, Khan F, Beck HC, Weile LKK, Sørensen JA, Sheikh SP, Riber LP, Andersen DC. Corrigendum to "Decellularized human umbilical artery: Biocompatibility and in vivo functionality in sheep carotid bypass model" [Mater. Sci. Eng.: C 112 (2020) 110955]. Mater Sci Eng C Mater Biol Appl 2020; 116:111182. [PMID: 32806232 DOI: 10.1016/j.msec.2020.111182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Shu Fang
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark; Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark
| | - Sara Schødt Riber
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark; Department of Cardiothoracic and Vascular Surgery, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark
| | - Kamal Hussein
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark; Department of Animal Surgery, Faculty of Veterinary Medicine, Assiut University, 71526 Assiut, Egypt
| | - Alexander Høgsted Ahlmann
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, 5000 Odense C, Denmark; Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark
| | - Eva Bang Harvald
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark; Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark
| | - Fazal Khan
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark; Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark
| | - Hans Christian Beck
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark; Centre for Clinical Proteomics, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark
| | - Louise Katrine Kjær Weile
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark; Department of Gynaecology and Obstetrics, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark
| | - Jens Ahm Sørensen
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark; Department of Plastic Surgery, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark
| | - Søren Paludan Sheikh
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark; Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark
| | - Lars Peter Riber
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark; Department of Cardiothoracic and Vascular Surgery, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark
| | - Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark; Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark.
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13
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Mortensen SB, Hansen AE, Lundgren J, Barfod TS, Ambye L, Dunø M, Schade Larsen C, Andersen DC, Jakobsen MA, Johansen IS. Characteristics of patients with familial Mediterranean fever in Denmark: a retrospective nationwide register-based cohort study. Scand J Rheumatol 2020; 49:489-497. [PMID: 32608308 DOI: 10.1080/03009742.2020.1756400] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Objectives: To investigate epidemiology, demography, and genetic and clinical characteristics of patients with familial Mediterranean fever (FMF) in Denmark. Method: In this population-based, cross-sectional cohort study, we identified FMF patients from discharge diagnoses using ICD-10 codes in the Danish National Patient Register, and linked data from the Danish Civil Registration System and laboratory databases for results of MEFV gene variant screening. Results: We identified 495 FMF patients (prevalence 1:11 680) with a median age of 29 years and a female ratio of 51%. The median age at diagnosis of FMF was 13 (IQR 7-22) years, with an estimated median diagnostic delay of 3 (IQR 0.7-6.9) years. The predominant ethnicities were Turkish (41.8%), Lebanese (15.8%), Syrian (6.5%), South-West Asian (7.9%), and South-East Asian (3.0%). The MEFV genotype distribution was 18.7% homozygous, 21.2% compound heterozygous, 32.0% heterozygous, 11.0% with complex alleles or unresolved zygosity, and 17.1% with no detected variants. M694V was the most prevalent variant in the overall cohort (32.5%). Homozygous or compound heterozygous MEFV exon 10 variants were associated with younger age at diagnosis (p < 0.001) and reduced number of hospital contacts before diagnosis (p = 0.008). The Charlson Comorbidity Index was ≥ 2 in 8.1% of patients. The prevalence of amyloidosis was 1.0%. Conclusions: FMF in Denmark is rare and patients are mainly of Eastern Mediterranean ethnicity. Diagnostic delay was long but patients with exon 10 MEFV variants were diagnosed at a younger age. Prolonged diagnostic delay is probably caused by lack of FMF awareness in the Danish healthcare system.
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Affiliation(s)
- S B Mortensen
- Department of Infectious Diseases, Odense University Hospital , Odense, Denmark.,Department of Clinical Immunology, Odense University Hospital , Odense, Denmark.,Odense Patient Exploratory Network (OPEN), Odense University Hospital , Odense, Denmark.,Department of Clinical Research, University of Southern Denmark , Odense, Denmark
| | - A E Hansen
- Department of Infectious Diseases, Copenhagen University Hospital , Hvidovre, Denmark
| | - J Lundgren
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet , Copenhagen, Denmark
| | - T S Barfod
- Department of Medicine, Division of Infectious Diseases, Zealand University Hospital , Roskilde, Denmark
| | - L Ambye
- Department of Clinical Biochemistry, Copenhagen University Hospital , Hvidovre, Denmark
| | - M Dunø
- Department of Clinical Genetics, Copenhagen University Hospital, Rigshospitalet , Copenhagen, Denmark
| | - C Schade Larsen
- Department of Infectious Diseases, Aarhus University Hospital , Aarhus, Denmark
| | - D C Andersen
- Department of Clinical Research, University of Southern Denmark , Odense, Denmark.,Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital , Odense, Denmark
| | - M A Jakobsen
- Department of Clinical Immunology, Odense University Hospital , Odense, Denmark.,Department of Clinical Research, University of Southern Denmark , Odense, Denmark
| | - I S Johansen
- Department of Infectious Diseases, Odense University Hospital , Odense, Denmark.,Department of Clinical Research, University of Southern Denmark , Odense, Denmark
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14
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Fang S, Riber SS, Hussein K, Ahlmann AH, Harvald EB, Khan F, Beck HC, Weile LKK, Sørensen JA, Sheikh SP, Riber LP, Andersen DC. Decellularized human umbilical artery: Biocompatibility and in vivo functionality in sheep carotid bypass model. Mater Sci Eng C Mater Biol Appl 2020; 112:110955. [PMID: 32409090 DOI: 10.1016/j.msec.2020.110955] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 12/13/2019] [Accepted: 04/08/2020] [Indexed: 12/24/2022]
Affiliation(s)
- Shu Fang
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark; Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark
| | - Sara Schødt Riber
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark; Department of Cardiothoracic and Vascular Surgery, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark
| | - Kamal Hussein
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark; Department of Animal Surgery, Faculty of Veterinary Medicine, Assiut University, 71526 Assiut, Egypt
| | - Alexander Høgsted Ahlmann
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, 5000 Odense C, Denmark; Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark
| | - Eva Bang Harvald
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark; Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark
| | - Fazal Khan
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark; Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark
| | - Hans Christian Beck
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark; Centre for Clinical Proteomics, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark
| | - Louise Katrine Kjær Weile
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark; Department of Gynaecology and Obstetrics, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark
| | - Jens Ahm Sørensen
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark; Department of Plastic Surgery, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark
| | - Søren Paludan Sheikh
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark; Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark
| | - Lars Peter Riber
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark; Department of Cardiothoracic and Vascular Surgery, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark
| | - Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløws Vej 25, 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark; Institute of Clinical Research, University of Southern Denmark, J. B. Winsløws Vej 19, 5000 Odense C, Denmark.
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15
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Juul Belling H, Hofmeister W, Andersen DC. A Systematic Exposition of Methods used for Quantification of Heart Regeneration after Apex Resection in Zebrafish. Cells 2020; 9:cells9030548. [PMID: 32111059 PMCID: PMC7140516 DOI: 10.3390/cells9030548] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 02/20/2020] [Accepted: 02/21/2020] [Indexed: 02/06/2023] Open
Abstract
Myocardial infarction (MI) is a worldwide condition that affects millions of people. This is mainly caused by the adult human heart lacking the ability to regenerate upon injury, whereas zebrafish have the capacity through cardiomyocyte proliferation to fully regenerate the heart following injury such as apex resection (AR). But a systematic overview of the methods used to evidence heart regrowth and regeneration in the zebrafish is lacking. Herein, we conducted a systematical search in Embase and Pubmed for studies on heart regeneration in the zebrafish following injury and identified 47 AR studies meeting the inclusion criteria. Overall, three different methods were used to assess heart regeneration in zebrafish AR hearts. 45 out of 47 studies performed qualitative (37) and quantitative (8) histology, whereas immunohistochemistry for various cell cycle markers combined with cardiomyocyte specific proteins was used in 34 out of 47 studies to determine cardiomyocyte proliferation qualitatively (6 studies) or quantitatively (28 studies). For both methods, analysis was based on selected heart sections and not the whole heart, which may bias interpretations. Likewise, interstudy comparison of reported cardiomyocyte proliferation indexes seems complicated by distinct study designs and reporting manners. Finally, six studies performed functional analysis to determine heart function, a hallmark of human heart injury after MI. In conclusion, our data implies that future studies should consider more quantitative methods eventually taking the 3D of the zebrafish heart into consideration when evidencing myocardial regrowth after AR. Furthermore, standardized guidelines for reporting cardiomyocyte proliferation and sham surgery details may be considered to enable inter study comparisons and robustly determine the effect of given genes on the process of heart regeneration.
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Affiliation(s)
- Helene Juul Belling
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, 5000 Odense C, Denmark; (H.J.B.); (W.H.)
- Clinical Institute, University of Southern Denmark, Winsloewparken 25, 1. floor, 5000 Odense C, Denmark
| | - Wolfgang Hofmeister
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, 5000 Odense C, Denmark; (H.J.B.); (W.H.)
- Clinical Institute, University of Southern Denmark, Winsloewparken 25, 1. floor, 5000 Odense C, Denmark
- Faculty of Health and Medical Sciences, DanStem, Novo Nordisk Foundation Center for Stem Cell Biology, 2200 København H, Denmark
| | - Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, 5000 Odense C, Denmark; (H.J.B.); (W.H.)
- Clinical Institute, University of Southern Denmark, Winsloewparken 25, 1. floor, 5000 Odense C, Denmark
- Correspondence:
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16
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Jensen CH, Kosmina R, Rydén M, Baun C, Hvidsten S, Andersen MS, Christensen LL, Gastaldelli A, Marraccini P, Arner P, Jørgensen CD, Laborda J, Holst JJ, Andersen DC. The imprinted gene Delta like non-canonical notch ligand 1 (Dlk1) associates with obesity and triggers insulin resistance through inhibition of skeletal muscle glucose uptake. EBioMedicine 2019; 46:368-380. [PMID: 31383551 PMCID: PMC6711890 DOI: 10.1016/j.ebiom.2019.07.070] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 07/29/2019] [Accepted: 07/29/2019] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The imprinted gene Delta like non-canonical Notch ligand 1 (Dlk1) is considered an inhibitor of adipogenesis, but its in vivo impact on fat mass indeed remains elusive and controversial. METHODS Fat deposits were assessed by MRI and DXA scanning in two cohorts of non-diabetic men, whereas glucose disposal rate (GDR) was determined during euglycemic hyperinsulinemic clamp. Blood analyte measurements were used for correlation and mediation analysis to investigate how age, BMI, and fat percentage affect the relation between DLK1 and GDR. Confirmatory animal studies performed in normal (NC) and high fat diet (HFD) fed Dlk1+/+ and Dlk1-/- mice included DXA scanning, glucose tolerance tests (GTTs), blood measurements, and skeletal muscle glucose uptake studies by positron emission tomography (PET), histology, qRT-PCR, and in vitro cell studies. FINDINGS Overall, DLK1 is positively correlated with fat amounts, which is consistent with a negative linear relationship between DLK1 and GDR. This relationship is not mediated by age, BMI, or fat percentage. In support, DLK1 also correlates positively with HOMA-IR and ADIPO-IR in these humans, but has no linear relationship with the early diabetic inflammation marker MCP-1. In Dlk1-/- mice, the increase in fat percentage and adipocyte size induced by HFD is attenuated, and these animals are protected against insulin resistance. These Dlk1 effects seem independent of gluconeogenesis, but at least partly relies on increased in vivo glucose uptake in skeletal muscles by Dlk1 regulating the major glucose transporter Glut4 in vivo as well as in two independent cell lines. INTERPRETATION Thus, instead of an adipogenic inhibitor, Dlk1 should be regarded as a factor causally linked to obesity and insulin resistance, and may be used to predict development of type 2 diabetes. FUND: The Danish Diabetes Academy supported by the Novo Nordisk Foundation, The Danish National Research Council (#09-073648), The Lundbeck Foundation, University of Southern Denmark, and Dep. Of Clinical Biochemistry and Pharmacology/Odense University Hospital, the Swedish Research Council, the Swedish Diabetes Foundation, the Strategic Research Program in Diabetes at Karolinska Institute and an EFSD/Lilly grant.
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Affiliation(s)
- Charlotte Harken Jensen
- Laboratory of Molecular and Cellular Cardiology, Dep. of Clinical Biochemistry and Pharmacology, Odense University Hospital, Denmark; Danish Center for Regenerative Medicine (danishcrm.com), Odense University Hospital, Denmark
| | - Rok Kosmina
- Laboratory of Molecular and Cellular Cardiology, Dep. of Clinical Biochemistry and Pharmacology, Odense University Hospital, Denmark; The Danish Diabetes Academy, Denmark; Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Mikael Rydén
- Dep. of Medicine-H7, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Christina Baun
- Department of Nuclear Medicine, Odense University Hospital, Odense, Denmark
| | - Svend Hvidsten
- Department of Nuclear Medicine, Odense University Hospital, Odense, Denmark
| | | | | | | | | | - Peter Arner
- Dep. of Medicine-H7, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | | | - Jorge Laborda
- Department of Inorganic and Organic Chemistry and Biochemistry, University of Castilla-La Mancha, Pharmacy School, Albacete, Spain
| | - Jens Juul Holst
- Department of Endocrinology and Metabolism, Section for Translational Metabolic Physiology, University of Copenhagen, Denmark
| | - Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Dep. of Clinical Biochemistry and Pharmacology, Odense University Hospital, Denmark; Danish Center for Regenerative Medicine (danishcrm.com), Odense University Hospital, Denmark; Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark; Clinical Institute, University of Southern Denmark, Odense, Denmark.
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17
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Zhang L, Uezumi A, Kaji T, Tsujikawa K, Andersen DC, Jensen CH, Fukada SI. Expression and Functional Analyses of Dlk1 in Muscle Stem Cells and Mesenchymal Progenitors during Muscle Regeneration. Int J Mol Sci 2019; 20:ijms20133269. [PMID: 31277245 PMCID: PMC6650828 DOI: 10.3390/ijms20133269] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 06/29/2019] [Accepted: 07/01/2019] [Indexed: 11/16/2022] Open
Abstract
Delta like non-canonical Notch ligand 1 (Dlk1) is a paternally expressed gene which is also known as preadipocyte factor 1 (Pref-1). The accumulation of adipocytes and expression of Dlk1 in regenerating muscle suggests a correlation between fat accumulation and Dlk1 expression in the muscle. Additionally, mice overexpressing Dlk1 show increased muscle weight, while Dlk1-null mice exhibit decreased body weight and muscle mass, indicating that Dlk1 is a critical factor in regulating skeletal muscle mass during development. The muscle regeneration process shares some features with muscle development. However, the role of Dlk1 in regeneration processes remains controversial. Here, we show that mesenchymal progenitors also known as adipocyte progenitors exclusively express Dlk1 during muscle regeneration. Eliminating developmental effects, we used conditional depletion models to examine the specific roles of Dlk1 in muscle stem cells or mesenchymal progenitors. Unexpectedly, deletion of Dlk1 in neither the muscle stem cells nor the mesenchymal progenitors affected the regenerative ability of skeletal muscle. In addition, fat accumulation was not increased by the loss of Dlk1. Collectively, Dlk1 plays essential roles in muscle development, but does not greatly impact regeneration processes and adipogenic differentiation in adult skeletal muscle regeneration.
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Affiliation(s)
- Lidan Zhang
- Project for Muscle Stem Cell Biology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
- Laboratory of Molecular and Cellular Physiology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Akiyoshi Uezumi
- Muscle Aging and Regenerative Medicine, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Tokyo 173-0015, Japan
| | - Takayuki Kaji
- Project for Muscle Stem Cell Biology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kazutake Tsujikawa
- Laboratory of Molecular and Cellular Physiology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Winsloewparken 21 3rd, 5000 Odense C, Denmark
- Clinical Institute, University of Southern Denmark, Winsloewparken 21 3rd, 5000 Odense C, Denmark
| | - Charlotte Harken Jensen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Winsloewparken 21 3rd, 5000 Odense C, Denmark
| | - So-Ichiro Fukada
- Project for Muscle Stem Cell Biology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan.
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18
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Traustadóttir GÁ, Lagoni LV, Ankerstjerne LBS, Bisgaard HC, Jensen CH, Andersen DC. The imprinted gene Delta like non-canonical Notch ligand 1 (Dlk1) is conserved in mammals, and serves a growth modulatory role during tissue development and regeneration through Notch dependent and independent mechanisms. Cytokine Growth Factor Rev 2019; 46:17-27. [DOI: 10.1016/j.cytogfr.2019.03.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/21/2019] [Accepted: 03/21/2019] [Indexed: 12/22/2022]
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19
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Skovrind I, Harvald EB, Juul Belling H, Jørgensen CD, Lindholt JS, Andersen DC. Concise Review: Patency of Small-Diameter Tissue-Engineered Vascular Grafts: A Meta-Analysis of Preclinical Trials. Stem Cells Transl Med 2019; 8:671-680. [PMID: 30920771 PMCID: PMC6591545 DOI: 10.1002/sctm.18-0287] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [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: 12/12/2018] [Accepted: 03/04/2019] [Indexed: 12/13/2022] Open
Abstract
Several patient groups undergoing small‐diameter (<6 mm) vessel bypass surgery have limited autologous vessels for use as grafts. Tissue‐engineered vascular grafts (TEVG) have been suggested as an alternative, but the ideal TEVG remains to be generated, and a systematic overview and meta‐analysis of clinically relevant studies is lacking. We systematically searched PubMed and Embase databases for (pre)clinical trials and identified three clinical and 68 preclinical trials ([>rabbit]; 873 TEVGs) meeting the inclusion criteria. Preclinical trials represented low to medium risk of bias, and binary logistic regression revealed that patency was significantly affected by recellularization, TEVG length, TEVG diameter, surface modification, and preconditioning. In contrast, scaffold types were less important. The patency was 63.5%, 89%, and 100% for TEVGs with a median diameter of 3 mm, 4 mm, and 5 mm, respectively. In the group of recellularized TEVGs, patency was not improved by using smooth muscle cells in addition to endothelial cells nor affected by the endothelial origin, but seems to benefit from a long‐term (46–240 hours) recellularization time. Finally, data showed that median TEVG length (5 cm) and median follow‐up (56 days) used in preclinical settings are relatively inadequate for direct clinical translation. In conclusion, our data imply that future studies should consider a TEVG design that at least includes endothelial recellularization and bioreactor preconditioning, and we suggest that more standard guidelines for testing and reporting TEVGs in large animals should be considered to enable interstudy comparisons and favor a robust and reproducible outcome as well as clinical translation.
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Affiliation(s)
- Ida Skovrind
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense C, Denmark.,Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense C, Denmark
| | - Eva Bang Harvald
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense C, Denmark.,Center for Vascular Regeneration, Odense University Hospital, Odense C, Denmark.,Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense C, Denmark
| | - Helene Juul Belling
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense C, Denmark.,Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense C, Denmark
| | | | - Jes Sanddal Lindholt
- Department of Cardiac, Thoracic, and Vascular Surgery, Odense University Hospital, Odense C, Denmark
| | - Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense C, Denmark.,Center for Vascular Regeneration, Odense University Hospital, Odense C, Denmark.,Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense C, Denmark.,Clinical Institute, University of Southern Denmark, Odense C, Denmark
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20
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Haahr MK, Harken Jensen C, Toyserkani NM, Andersen DC, Damkier P, Sørensen JA, Sheikh SP, Lund L. A 12-Month Follow-up After a Single Intracavernous Injection of Autologous Adipose-Derived Regenerative Cells in Patients with Erectile Dysfunction Following Radical Prostatectomy: An Open-Label Phase I Clinical Trial. Urology 2018; 121:203.e6-203.e13. [PMID: 29958973 DOI: 10.1016/j.urology.2018.06.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 05/30/2018] [Accepted: 06/11/2018] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To explore safety in adipose-derived regenerative cells (ADRC) therapy, treating erectile dysfunction (ED). METHODS Twenty-one patients with ED after radical prostatectomy, with no signs of recovery using conventional therapy, received a single intracavernous injection of autologous ADRC and were followed for 1 year. Six men were incontinent, and 15 were continent at inclusion. The primary (safety of ADRC therapy) and secondary endpoints (sexual function) were evaluated at 1, 3, 6, and 12 months after ADRC injection by registration of adverse events and validated questionnaires using the international index of erectile function-5 and erection hardness score. RESULTS No serious adverse events occurred, but 8 reversible minor events related to the liposuction were noted. Eight out of 15 (53%) patients in the continent group reported erectile function sufficient for intercourse at 12 months. Baseline median international index of erectile function-5 scores (6.0; interquartile range [IQR] 3) were unchanged 1 month after the treatment, but significantly increased after 6 to 7 (IQR 17). This effect was sustained at 12 months (median 8; IQR 14). We did not see any improvements in erectile function in the group of incontinent men or among men with ED prior to radical prostatectomy. CONCLUSION Intracavernous injection of ADRC is safe in this phase 1 study with a 12-month follow-up.
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Affiliation(s)
- Martha Kirstine Haahr
- Department of Urology, Odense University Hospital, Odense, Denmark; The Danish Centre for Regenerative Medicine (www.danishcrm.com), Odense University Hospital, Odense, Denmark; Clinical Institute, University of Southern Denmark, Odense, Denmark.
| | - Charlotte Harken Jensen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Navid Mohamadpour Toyserkani
- Department of Plastic Surgery, Odense University Hospital, Odense, Denmark; The Danish Centre for Regenerative Medicine (www.danishcrm.com), Odense University Hospital, Odense, Denmark
| | - Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark; The Danish Centre for Regenerative Medicine (www.danishcrm.com), Odense University Hospital, Odense, Denmark
| | - Per Damkier
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Jens Ahm Sørensen
- Department of Plastic Surgery, Odense University Hospital, Odense, Denmark; The Danish Centre for Regenerative Medicine (www.danishcrm.com), Odense University Hospital, Odense, Denmark
| | - Søren Paludan Sheikh
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark; Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark; The Danish Centre for Regenerative Medicine (www.danishcrm.com), Odense University Hospital, Odense, Denmark
| | - Lars Lund
- Department of Urology, Odense University Hospital, Odense, Denmark; The Danish Centre for Regenerative Medicine (www.danishcrm.com), Odense University Hospital, Odense, Denmark; Clinical Institute, University of Southern Denmark, Odense, Denmark
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21
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Toyserkani NM, Jensen CH, Andersen DC, Sheikh SP, Sørensen JA. Treatment of Breast Cancer-Related Lymphedema with Adipose-Derived Regenerative Cells and Fat Grafts: A Feasibility and Safety Study. Stem Cells Transl Med 2017; 6:1666-1672. [PMID: 28653440 PMCID: PMC5689749 DOI: 10.1002/sctm.17-0037] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [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: 02/21/2017] [Accepted: 05/22/2017] [Indexed: 12/12/2022] Open
Abstract
Breast cancer‐related lymphedema (BCRL) is a debilitating late complication with a lack of treatment opportunities. Recent studies have suggested that mesenchymal stromal cells can alleviate lymphedema. Herein, we report the results from the first human pilot study with freshly isolated adipose‐derived regenerative cells (ADRC) for treating lymphedema with 6 months follow‐up. Ten BCRL patients were included. ADRC was injected directly into the axillary region, which was combined with a scar‐releasing fat graft procedure. Primary endpoints were change in arm volume. Secondary endpoints were change in patient reported outcome and safety. The study is registered with ClinicalTrials.gov (NCT02592213). During follow‐up, a small volume reduction was noted but was not significant. Five patients reduced their use of conservative management. Patient‐reported outcomes improved significantly over time. ADRCs were well tolerated and only minor transient adverse events related to liposuction were noted. In this pilot study, a single injection of ADRC improved lymphedema based on patient‐reported outcome measures, and there were no serious adverse events in the 6 months follow‐up period. In addition, half of the patients reduced their use of conservative management. ADRC therapy is a promising interventional therapy for alleviating lymphedema, but results need to be confirmed in randomized clinical trials. Stem Cells Translational Medicine2017;6:1666–1672
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Affiliation(s)
- Navid Mohamadpour Toyserkani
- Departments of Plastic Surgery, Odense University Hospital, Odense, Denmark.,The Danish Centre for Regenerative Medicine, Odense University Hospital, Odense, Denmark.,Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Charlotte Harken Jensen
- The Danish Centre for Regenerative Medicine, Odense University Hospital, Odense, Denmark.,Laboratory of Molecular and Cellular Cardiology, Odense University Hospital, Odense, Denmark.,Clinical Biochemistry and Pharmacology, University of Southern Denmark, Odense, Denmark
| | - Ditte Caroline Andersen
- The Danish Centre for Regenerative Medicine, Odense University Hospital, Odense, Denmark.,Laboratory of Molecular and Cellular Cardiology, Odense University Hospital, Odense, Denmark.,Clinical Institute, University of Southern Denmark, Odense, Denmark.,Clinical Biochemistry and Pharmacology, University of Southern Denmark, Odense, Denmark
| | - Søren Paludan Sheikh
- The Danish Centre for Regenerative Medicine, Odense University Hospital, Odense, Denmark.,Laboratory of Molecular and Cellular Cardiology, Odense University Hospital, Odense, Denmark.,Clinical Biochemistry and Pharmacology, University of Southern Denmark, Odense, Denmark.,Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Jens Ahm Sørensen
- Departments of Plastic Surgery, Odense University Hospital, Odense, Denmark.,The Danish Centre for Regenerative Medicine, Odense University Hospital, Odense, Denmark.,Clinical Institute, University of Southern Denmark, Odense, Denmark
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22
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Traustadóttir GÁ, Jensen CH, Garcia Ramirez JJ, Beck HC, Sheikh SP, Andersen DC. The non-canonical NOTCH1 ligand Delta-like 1 homolog (DLK1) self interacts in mammals. Int J Biol Macromol 2017; 97:460-467. [DOI: 10.1016/j.ijbiomac.2017.01.067] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 01/12/2017] [Accepted: 01/13/2017] [Indexed: 12/11/2022]
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Quaade ML, Jensen CH, Andersen DC, Sheikh SP. A 3-month age difference profoundly alters the primary rat stromal vascular fraction phenotype. Acta Histochem 2016; 118:513-8. [PMID: 27265810 DOI: 10.1016/j.acthis.2016.05.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 05/20/2016] [Accepted: 05/20/2016] [Indexed: 01/01/2023]
Abstract
The stromal vascular fraction (SVF) is a heterogeneous population obtained from collagenase digestion of adipose tissue. When cultured the population becomes more homogeneous and the cells are then termed adipose stromal/stem cells (ASCs). Both the freshly isolated primary SVF population and the cultured ASC population possess regenerative abilities suggested to be mediated by paracrine mechanisms mainly. The use of ASCs and SVF cells, both in animal studies and human clinical studies, has dramatically increased during recent years. However, more knowledge regarding optimal donor characteristics such as age is demanded. Here we report that even a short age difference has an impact on the phenotype of primary SVF cells. We observed that a 3-month difference in relatively young adult rats affects the expression pattern of several mesenchymal stem cell markers in their primary SVF. The younger animals had significantly more CD90+/CD44+/CD29+/PDGFRα+primary cells, than the aged rats, suggesting an age dependent shift in the relative cell type distribution within the population. Taken together with recent studies of much more pronounced age differences, our data strongly suggest that donor age is a very critical parameter that should be taken into account in future stem cell studies, especially when using primary cells.
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Affiliation(s)
- Marlene Louise Quaade
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark; Department of Cardiovascular and Renal Research, Denmark.
| | - Charlotte Harken Jensen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark.
| | - Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark; Institute of Clinical Research, University of Southern Denmark, Odense, Denmark.
| | - Søren Paludan Sheikh
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark; Department of Cardiovascular and Renal Research, Denmark.
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24
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Haahr MK, Jensen CH, Toyserkani NM, Andersen DC, Damkier P, Sørensen JA, Lund L, Sheikh SP. Safety and Potential Effect of a Single Intracavernous Injection of Autologous Adipose-Derived Regenerative Cells in Patients with Erectile Dysfunction Following Radical Prostatectomy: An Open-Label Phase I Clinical Trial. EBioMedicine 2016; 5:204-10. [PMID: 27077129 PMCID: PMC4816754 DOI: 10.1016/j.ebiom.2016.01.024] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [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: 10/25/2015] [Revised: 01/12/2016] [Accepted: 01/18/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Prostate cancer is the most common cancer in men, and radical prostatectomy (RP) often results in erectile dysfunction (ED) and a substantially reduced quality of life. The efficacy of current interventions, principal treatment with PDE-5 inhibitors, is not satisfactory and this condition presents an unmet medical need. Preclinical studies using adipose-derived stem cells to treat ED have shown promising results. Herein, we report the results of a human phase 1 trial with autologous adipose-derived regenerative cells (ADRCs) freshly isolated after a liposuction. METHODS Seventeen men suffering from post RP ED, with no recovery using conventional therapy, were enrolled in a prospective phase 1 open-label and single-arm study. All subjects had RP performed 5-18 months before enrolment, and were followed for 6 months after intracavernosal transplantation. ADRCs were analyzed for the presence of stem cell surface markers, viability and ability to differentiate. Primary endpoint was the safety and tolerance of the cell therapy while the secondary outcome was improvement of erectile function. Any adverse events were reported and erectile function was assessed by IIEF-5 scores. The study is registered with ClinicalTrials.gov, NCT02240823. FINDINGS Intracavernous injection of ADRCs was well-tolerated and only minor events related to the liposuction and cell injections were reported at the one-month evaluation, but none at later time points. Overall during the study period, 8 of 17 men recovered their erectile function and were able to accomplish sexual intercourse. Post-hoc stratification according to urinary continence status was performed. Accordingly, for continent men (median IIEFinclusion = 7 (95% CI 5-12), 8 out of 11 men recovered erectile function (IIEF6months = 17 (6-23)), corresponding to a mean difference of 0.57 (0.38-0.85; p = 0.0069), versus inclusion. In contrast, incontinent men did not regain erectile function (median IIEF1/3/6 months = 5 (95% CI 5-6); mean difference 1 (95% CI 0.85-1.18), p > 0.9999). INTERPRETATION In this phase I trial a single intracavernosal injection of freshly isolated autologous ADRCs was a safe procedure. A potential efficacy is suggested by a significant improvement in IIEF-5 scores and erectile function. We suggest that ADRCs represent a promising interventional therapy of ED following prostatectomy. FUNDING Danish Medical Research Council, Odense University Hospital and the Danish Cancer Society.
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Key Words
- ADRC, adipose-derived regenerative cells
- Adipose-derived regenerative cells
- Adipose-derived stem cells
- Adipose-derived stromal vascular fraction
- BMI, body mass index
- CFU-F, fibroblastoid colony forming units
- Cell therapy
- Clinical trial
- ED, erectile dysfunction
- EHS, erection hardness score
- Erectile dysfunction
- ICIQ-UI SF, incontinence questionnaire – urinary incontinence – short form questionnaire
- IIEF-5, international index of erectile function-5
- LUTS, lower urinary tract symptoms
- NSAID, nonsteroidal antiinflammatory drug
- PDE-5, phosphodiesterase-5
- RP, radical prostatectomy
- SVF, stromal vascular fraction
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Affiliation(s)
- Martha Kirstine Haahr
- Department of Urology, Odense University Hospital, Sdr. Boulevard 29, 5000 Odense C, Denmark; The Danish Centre for Regenerative Medicine (www.danishcrm.com); Odense University Hospital, Denmark; Clinical Institute, University of Southern Denmark, 5000 Odense C, Denmark
| | - Charlotte Harken Jensen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark; The Danish Centre for Regenerative Medicine (www.danishcrm.com); Odense University Hospital, Denmark
| | - Navid Mohamadpour Toyserkani
- Department of Plastic Surgery, Odense University Hospital, Odense, Denmark; The Danish Centre for Regenerative Medicine (www.danishcrm.com); Odense University Hospital, Denmark; Clinical Institute, University of Southern Denmark, 5000 Odense C, Denmark
| | - Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark; The Danish Centre for Regenerative Medicine (www.danishcrm.com); Odense University Hospital, Denmark; Clinical Institute, University of Southern Denmark, 5000 Odense C, Denmark
| | - Per Damkier
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark; Clinical Institute, University of Southern Denmark, 5000 Odense C, Denmark
| | - Jens Ahm Sørensen
- Department of Plastic Surgery, Odense University Hospital, Odense, Denmark; The Danish Centre for Regenerative Medicine (www.danishcrm.com); Odense University Hospital, Denmark; Clinical Institute, University of Southern Denmark, 5000 Odense C, Denmark
| | - Lars Lund
- Department of Urology, Odense University Hospital, Sdr. Boulevard 29, 5000 Odense C, Denmark; The Danish Centre for Regenerative Medicine (www.danishcrm.com); Odense University Hospital, Denmark; Clinical Institute, University of Southern Denmark, 5000 Odense C, Denmark
| | - Søren Paludan Sheikh
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark; Institute of Molecular Medicine, University of Southern Denmark, Winsloewparken 21 3rd, 5000 Odense C, Denmark; The Danish Centre for Regenerative Medicine (www.danishcrm.com); Odense University Hospital, Denmark
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Andersen DC, Jensen CH, Baun C, Hvidsten S, Zebrowski DC, Engel FB, Sheikh SP. Persistent scarring and dilated cardiomyopathy suggest incomplete regeneration of the apex resected neonatal mouse myocardium--A 180 days follow up study. J Mol Cell Cardiol 2015; 90:47-52. [PMID: 26655949 DOI: 10.1016/j.yjmcc.2015.11.031] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 11/11/2015] [Accepted: 11/30/2015] [Indexed: 01/05/2023]
Abstract
Heart damage in mammals is generally considered to result in scar formation, whereas zebrafish completely regenerate their hearts following an intermediate and reversible state of fibrosis after apex resection (AR). Recently, using the AR procedure, one-day-old mice were suggested to have full capacity for cardiac regeneration as well. In contrast, using the same mouse model others have shown that the regeneration process is incomplete and that scarring still remains 21 days after AR. The present study tested the hypothesis that like in zebrafish, fibrosis in neonatal mammals could be an intermediate response before the onset of complete heart regeneration. Myocardial damage was performed by AR in postnatal day 1 C57BL/6 mice, and myocardial function and scarring assessed at day 180 using F-18-fluorodeoxyglucose positron emission tomography (FDG-PET) and histology, respectively. AR mice exhibited decreased ejection fraction and wall motion with increased end-diastolic and systolic volumes compared to sham-operated mice. Scarring with collagen accumulation was still substantial, with increased heart size, while cardiomyocyte size was unaffected. In conclusion, these data thus show that apex resection in mice results in irreversible fibrosis and dilated cardiomyopathy suggesting that cardiac regeneration is limited in neonatal mammals and thus distinct from the regenerative capacity seen in zebrafish.
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Affiliation(s)
- Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Dep. of Clinical Biochemistry and Pharmacology, Odense University Hospital, Winsloewparken 21(3rd), 5000 Odense C, Denmark; Clinical Institute/University of Southern Denmark, 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, Sdr. Boulevard 29, 5000 Odense C, Denmark.
| | - Charlotte Harken Jensen
- Laboratory of Molecular and Cellular Cardiology, Dep. of Clinical Biochemistry and Pharmacology, Odense University Hospital, Winsloewparken 21(3rd), 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, Sdr. Boulevard 29, 5000 Odense C, Denmark
| | - Christina Baun
- Department of Nuclear Medicine, Odense University Hospital, Odense C, Denmark
| | - Svend Hvidsten
- Department of Nuclear Medicine, Odense University Hospital, Odense C, Denmark
| | - David C Zebrowski
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Schwabachanlage 12, 91054 Erlangen, Germany
| | - Felix Benedikt Engel
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Schwabachanlage 12, 91054 Erlangen, Germany
| | - Søren Paludan Sheikh
- Laboratory of Molecular and Cellular Cardiology, Dep. of Clinical Biochemistry and Pharmacology, Odense University Hospital, Winsloewparken 21(3rd), 5000 Odense C, Denmark; Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense C, Denmark; The Danish Regenerative Center (danishcrm.com), Odense University Hospital, Sdr. Boulevard 29, 5000 Odense C, Denmark.
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Andersen DC, Ganesalingam S, Jensen CH, Sheikh SP. Do neonatal mouse hearts regenerate following heart apex resection? Stem Cell Reports 2014; 2:406-13. [PMID: 24749066 PMCID: PMC3986579 DOI: 10.1016/j.stemcr.2014.02.008] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 02/24/2014] [Accepted: 02/25/2014] [Indexed: 11/30/2022] Open
Abstract
The mammalian heart has generally been considered nonregenerative, but recent progress suggests that neonatal mouse hearts have a genuine capacity to regenerate following apex resection (AR). However, in this study, we performed AR or sham surgery on 400 neonatal mice from inbred and outbred strains and found no evidence of complete regeneration. Ideally, new functional cardiomyocytes, endothelial cells, and vascular smooth muscle cells should be formed in the necrotic area of the damaged heart. Here, damaged hearts were 9.8% shorter and weighed 14% less than sham controls. In addition, the resection border contained a massive fibrotic scar mainly composed of nonmyocytes and collagen disposition. Furthermore, there was a substantial reduction in the number of proliferating cardiomyocytes in AR hearts. Our results thus question the usefulness of the AR model for identifying molecular mechanisms underlying regeneration of the adult heart after damage.
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Affiliation(s)
- Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Winsloewparken 21 , 5000 Odense C, Denmark ; Clinical Institute, University of Southern Denmark, 5000 Odense C, Denmark
| | - Suganya Ganesalingam
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Winsloewparken 21 , 5000 Odense C, Denmark ; Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense C, Denmark
| | - Charlotte Harken Jensen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Winsloewparken 21 , 5000 Odense C, Denmark
| | - Søren Paludan Sheikh
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Winsloewparken 21 , 5000 Odense C, Denmark ; Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense C, Denmark
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Andersen DC, Laborda J, Baladron V, Kassem M, Sheikh SP, Jensen CH. Dual role of delta-like 1 homolog (DLK1) in skeletal muscle development and adult muscle regeneration. Development 2013; 140:3743-53. [DOI: 10.1242/dev.095810] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Muscle development and regeneration is tightly orchestrated by a specific set of myogenic transcription factors. However, factors that regulate these essential myogenic inducers remain poorly described. Here, we show that delta-like 1 homolog (Dlk1), an imprinted gene best known for its ability to inhibit adipogenesis, is a crucial regulator of the myogenic program in skeletal muscle. Dlk1-/- mice were developmentally retarded in their muscle mass and function owing to inhibition of the myogenic program during embryogenesis. Surprisingly however, Dlk1 depletion improves in vitro and in vivo adult skeletal muscle regeneration by substantial enhancement of the myogenic program and muscle function, possibly by means of an increased number of available myogenic precursor cells. By contrast, Dlk1 fails to alter the adipogenic commitment of muscle-derived progenitors in vitro, as well as intramuscular fat deposition during in vivo regeneration. Collectively, our results suggest a novel and surprising dual biological function of DLK1 as an enhancer of muscle development, but as an inhibitor of adult muscle regeneration.
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Affiliation(s)
- Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Winsloewparken 21 3rd, 5000 Odense C, Denmark
- Insitute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Jorge Laborda
- Department of Inorganic and Organic Chemistry and Biochemistry, Medical School, Regional Center for Biomedical Research, University of Castilla-La Mancha, Avenida de Almansa 14, 02006 Albacete, Spain
| | - Victoriano Baladron
- Department of Inorganic and Organic Chemistry and Biochemistry, Medical School, Regional Center for Biomedical Research, University of Castilla-La Mancha, Avenida de Almansa 14, 02006 Albacete, Spain
| | - Moustapha Kassem
- Department of Endocrinology and Metabolism, Odense University Hospital, Odense, Denmark
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh 11461, Saudi Arabia
| | - Søren Paludan Sheikh
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Winsloewparken 21 3rd, 5000 Odense C, Denmark
- Department of Cardiovascular and Renal Research, Insitute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Charlotte Harken Jensen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Winsloewparken 21 3rd, 5000 Odense C, Denmark
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Abstract
Cardiac fibrosis is a maladaptive response of the injured myocardium and is mediated through a complex interplay between molecular triggers and cellular responses. Interleukin (IL)-1β is a key inflammatory inducer in cardiac disease and promotes cell invasion and cardiomyocyte injury, but little is known of its impact on fibrosis. A major cornerstone of fibrosis is the differentiation of cardiac fibroblasts (CFs) into myofibroblasts (myoFbs), which is highly promoted by Transforming Growth Factor (TGF)-β. Therefore, we asked how IL-1β functionally modulated CF-to-myoFb differentiation. Using a differentiation model of ventricular fibroblasts, we found that IL-1β instigated substantial anti-fibrogenic effects. In specific, IL-1β reduced proliferation, matrix activity, cell motility and α-smooth muscle actin expression, which are all hallmarks of myoFb differentiation. These findings suggest that IL-1β, besides from its acknowledged adverse role in the inflammatory response, can also exert beneficial effects in cardiac fibrosis by actively suppressing differentiation of CFs into fibrogenic myoFbs.
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Affiliation(s)
- Hasse Brønnum
- Laboratory for Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital and Institute of Molecular Medicine, University of Southern Denmark, Odense C, Denmark
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Andersen DC, Goochee CF. The effect of ammonia on the O-linked glycosylation of granulocyte colony-stimulating factor produced by chinese hamster ovary cells. Biotechnol Bioeng 2012; 47:96-105. [PMID: 18623371 DOI: 10.1002/bit.260470112] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Ammonium ion concentrations ranging from 0 to 10 mM are shown to significantly reduce the sialylation of granuiocyte colony-stimulating factor (G-CSF) produced by recombinant Chinese hamster ovary cells. Specifically, the degree of completion of the final reaction in the O-linked glycosylation pathway, the addition of sialic acid in an alpha(2,6) linkage to N-acetylgalactosamine, is reduced by NH(4) (+) concentrations of as low as 2 mM. The effect of ammonia on sialylation is rapid, sustained, and does not affect the secretion rate of G-CSF. Additionally, the effect can be mimicked using the weak base chloroquine, suggesting that the effect is related to the weak base characteristics of ammonia. In support of this hypothesis, experiments using brefeldin A suggest that the addition of sialic acid in an alpha(2,6) linkage to N-acetylgalactosamine occurs in the trans-Golgi compartment prior to the trans-Golgi network, which would be expected under normal conditions to have a slightly acidic pH in the range from 6.5 to 6.75. Ammonium ion concentrations of 10 mM would be expected to reduce significantly the differences in pH between acidic intracellular compartments and the cytoplasm. The pH-activity profile for the CHO O-linked alpha(2,6) sialytransferase using monosialylated G-CSF as a substrate reveals a twofold decrease in enzymatic activity across the pH range from 6.75 to 7.0.Mathematical modeling of this sialylation reaction supports the hypothesis that this twofold decrease in sialyltransferase activity resulting from an ammoniainduced increase in trans-Golgi pH could produce the observed decrease in G-CSF sialylation. (c) 1995 John Wiley & Sons, Inc.
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Affiliation(s)
- D C Andersen
- Department of Chemical Engineering, Stanford University, Stanford, California 94305-5025
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Bentley WE, Mirjalili N, Andersen DC, Davis RH, Kompala DS. Plasmid-encoded protein: the principal factor in the "metabolic burden" associated with recombinant bacteria. Biotechnol Bioeng 2012; 35:668-81. [PMID: 18592563 DOI: 10.1002/bit.260350704] [Citation(s) in RCA: 347] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Experimental elucidation of the metabolic load placed on bacteria by the expression of foreign protein is presented. The host/vector system is Escherichia coli RR1/pBR329 (amp(r), cam(r), and let(r)). Plasmid content results, which indicate that the plasmid copy number monotonically increases with decreasing growth rate, are consistent with the literature on ColE1-like plasmids. More significantly, we have experimentally quantified the reduction in growth rate brought about by the expression of chloramphenicol-acetyl-transferase (CAT) and beta-lactamase. Results indicate a nearly linear decrease in growth rate with increasing foreign protein content. Also, the change in growth rate due to foreign protein expression depends on the growth rate of the cells. The observed linear relationship is media independent and, to our knowledge, previously undocumented. Furthermore, the induction of CAT, mediated by the presence of chloramphenicol, is shown to occur only at low growth rates, which further increases the metabolic load.Results are vdelineated with the aid of a structured kinetic model representing the metabolism of recombinant E. coli. In this article, several previous hypotheses and model predictions are justified and validated. This work provides an important step in the development of comprehensive, methabolically-structured, kinetic models capable of prediciting optimal conditions for maximizing product yield.
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Affiliation(s)
- W E Bentley
- Department of Chemical Engineering, UniversityofColorado, Boulder, Colorado 80309-0424, USA
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Jeppesen PL, Christensen GL, Schneider M, Nossent AY, Jensen HB, Andersen DC, Eskildsen T, Gammeltoft S, Hansen JL, Sheikh SP. Angiotensin II type 1 receptor signalling regulates microRNA differentially in cardiac fibroblasts and myocytes. Br J Pharmacol 2012; 164:394-404. [PMID: 21449976 DOI: 10.1111/j.1476-5381.2011.01375.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND AND PURPOSE The angiotensin II type 1 receptor (AT(1)R) is a key regulator of blood pressure and cardiac contractility and is profoundly involved in development of cardiac disease. Since several microRNAs (miRNAs) have been implicated in cardiac disease, we determined whether miRNAs might be regulated by AT(1)R signals in a Gαq/11-dependent or -independent manner. EXPERIMENTAL APPROACH We performed a global miRNA array analysis of angiotensin II (Ang II)-mediated miRNA regulation in HEK293N cells overexpressing the AT(1)R and focused on separating the role of Gαq/11-dependent and -independent pathways. MiRNA regulation was verified with quantitative PCR in both HEK293N cells and primary cardiac myocytes and fibroblasts. KEY RESULTS Our studies revealed five miRNAs (miR-29b, -129-3p, -132, -132* and -212) that were up-regulated by Ang II in HEK293N cells. In contrast, the biased Ang II analogue, [Sar1, Ile4, Ile8] Ang II (SII Ang II), which selectively activates Gαq/11-independent signalling, failed to regulate miRNAs in HEK293N cells. Furthermore, Ang II-induced miRNA regulation was blocked following Gαq/11 and Mek1 inhibition. The observed Ang II regulation of miRNA was confirmed in primary cultures of adult cardiac fibroblasts. Interestingly, Ang II did not regulate miRNA expression in cardiac myocytes, but SII Ang II significantly down-regulated miR-129-3p. CONCLUSIONS AND IMPLICATIONS Five miRNAs were regulated by Ang II through mechanisms depending on Gαq/11 and Erk1/2 activation. These miRNAs may be involved in Ang II-mediated cardiac biology and disease, as several of these miRNAs have previously been associated with cardiovascular disease and were found to be regulated in cardiac cells.
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Affiliation(s)
- Pia Lindgren Jeppesen
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark and Department of Clinical Biochemistry & Pharmacology, Odense University Hospital, Odense, Denmark
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Andersen DC, Kristiansen GQ, Jensen L, Füchtbauer EM, Schrøder HD, Jensen CH. Quantitative gene expression profiling of CD45+ and CD45− skeletal muscle-derived side population cells. Cytometry A 2011; 81:72-80. [DOI: 10.1002/cyto.a.21121] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Revised: 07/12/2011] [Accepted: 07/13/2011] [Indexed: 01/02/2023]
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Schneider M, Andersen DC, Silahtaroglu A, Lyngbæk S, Kauppinen S, Hansen JL, Sheikh SP. Cell-specific detection of microRNA expression during cardiomyogenesis by combined in situ hybridization and immunohistochemistry. J Mol Histol 2011; 42:289-99. [PMID: 21643937 DOI: 10.1007/s10735-011-9332-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Accepted: 05/24/2011] [Indexed: 01/14/2023]
Abstract
MicroRNAs (miRNAs) regulate gene expression by mediating translational repression or mRNA degradation of their targets, and several miRNAs control developmental decisions through embryogenesis. In the developing heart, miRNA targets comprise key players mediating cardiac lineage determination. However, although several miRNAs have been identified as differentially regulated during cardiac development and disease, their distinct cell-specific localization remains largely undetermined, likely owing to a lack of adequate methods. We therefore report the development of a markedly improved approach combining fluorescence-based miRNA-in situ hybridization (miRNA-ISH) with immunohistochemistry (IHC). We have applied this protocol to differentiating embryoid bodies (EBs) as well as embryonic and adult mouse hearts, to detect miRNAs that were upregulated during EB cardiomyogenesis, as determined by array-based miRNA expression profiling. In this manner, we found specific co-localization of miR-1 to myosin positive cells (cardiomyocytes) of EBs, developing and mature hearts. In contrast, miR-125b and -199a did not localize to cardiomyocytes, as previously suggested for miR-199a, but were rather expressed in connective tissue cells of the heart. More specifically, by co-staining with α-smooth muscle actin (α-SMA) and collagen-I, we found that miR-125b and -199a localize to perivascular α-SMA(-) stromal cells. Our approach thus proved valid for determining cell-specific localization of miRNAs, and the findings we present highlight the importance of determining exact cell-specific localization of miRNAs by sequential miRNA-ISH and IHC in studies aiming at understanding the role of miRNAs and their targets. This approach will hopefully aid in identifying relevant miRNA targets of both the heart and other organs.
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Affiliation(s)
- Mikael Schneider
- Department of Clinical Biochemistry and Pharmacology, Laboratory for Molecular and Cellular Cardiology, Odense University Hospital, Odense, Denmark.
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Andersen DC, Jensen L, Schrøder HD, Jensen CH. "The preadipocyte factor" DLK1 marks adult mouse adipose tissue residing vascular cells that lack in vitro adipogenic differentiation potential. FEBS Lett 2009; 583:2947-53. [PMID: 19665021 DOI: 10.1016/j.febslet.2009.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2009] [Accepted: 08/03/2009] [Indexed: 01/22/2023]
Abstract
Delta-like 1 (Dlk1) is expressed in 3T3-L1 preadipocytes and has frequently been referred to as "the" preadipocyte marker, yet the phenotype of DLK1(+) cells in adipose tissue remains undetermined. Herein, we demonstrate that DLK1(+) cells encompass around 1-2% of the adult mouse adipose stromal vascular fraction (SVF). Unexpectedly, the DLK1(+)SVF population was enriched for cells expressing genes generally ascribed to the vascular lineage and did not possess any adipogenic differentiation potential in vitro. Instead, DLK1(+) cells comprised an immediate ability for cobblestone formation, generation of tube-like structures on matrigel, and uptake of Acetylated Low Density-Lipoprotein, all characteristics of endothelial cells. We therefore suggest that DLK1(+)SVF cells are of a vascular origin and not them-selves committed preadipocytes as assumed hitherto.
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Andersen DC, Andersen P, Schneider M, Jensen HB, Sheikh SP. Murine “Cardiospheres” Are Not a Source of Stem Cells with Cardiomyogenic Potential. Stem Cells 2009; 27:1571-81. [DOI: 10.1002/stem.72] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Andersen DC. Beyond rumor and reductionism: a textual dialogue with Erik H. Erikson. Psychohist Rev 2001; 22:35-68. [PMID: 11623368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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Abstract
Recombinant E. coli fermentations were observed to undergo regular, reproducible oscillations in oxygen uptake for several hours during a controlled fermentation process. Culture growth slowed during the period of oscillations, delaying induction of recombinant protein production. The oscillations were similar in 10-L and 1,000-L fermentors and also occurred with different feed control algorithms. Both observations support the hypothesis that the oscillations are metabolic in nature. Analysis of amino acid, ATP, and GTP pools suggests that the oscillations result from aberrant regulation of isoleucine biosynthesis leading to repeated starvation events in which protein synthesis and growth are impaired. Both a nutritional solution, isoleucine feeding, and a genetic solution, repair of an ilvG frameshift mutation in E. coli K-12 strains, were found to eliminate the oscillations, further supporting the proposed mechanism for the behavior. These results illustrate the interesting and complicated physiological behavior which can be displayed in metabolic networks and provide another example of surprising problems that can arise in growing recombinant organisms in fermentors.
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Affiliation(s)
- D C Andersen
- Cell Culture & Fermentation Research & Development, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA.
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Abstract
Human tissue-type plasminogen activator (t-PA) contains a variably occupied glycosylation site at Asn-184 in naturally produced t-PA and in t-PA produced in recombinant Chinese hamster ovary (CHO) cells. The presence of an oligosaccharide at this site has previously been shown to reduce specific activity and fibrin binding. In this report, the site occupancy of t-PA is shown to increase gradually over the course of batch and fed-batch CHO cultures. Additional cell culture factors, including butyrate and temperature, are also shown to influence the degree of glycosylation. In each of these cases, conditions with decreased growth rate correlate with increased site occupancy. Investigations using quinidine and thymidine to manipulate the cell cycle distribution of cultures further support this correlation between site occupancy and growth state. Comparison of the cell cycle distribution across the range of cell culture factors investigated shows a consistent relationship between site occupancy and the fraction of cells in the G(0)/G(1) phase of the cell cycle. These results support a correlation between growth state and site occupancy, which fundamentally differs from site occupancy trends previously observed and illustrates the importance of the growth profile of CHO cultures in producing consistently glycosylated recombinant glycoproteins.
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Affiliation(s)
- D C Andersen
- Department of Manufacturing Sciences, Genentech, Inc., One DNA Way, South San Francisco, California 94080-4990, USA.
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Jandik P, Clarke AP, Avdalovic N, Andersen DC, Cacia J. Analyzing mixtures of amino acids and carbohydrates using bi-modal integrated amperometric detection. J Chromatogr B Biomed Sci Appl 1999; 732:193-201. [PMID: 10517236 DOI: 10.1016/s0378-4347(99)00284-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Described in this work is a new detection methodology - bi-modal integrated amperometric detection - for identifying peaks and as a tool for solving difficult separation problems. Bi-modal integrated amperometry makes it possible to selectively detect amino acids, amino sugars, and carbohydrates following their separation by anion-exchange. Selectivity is gained by two different methods of integrating anodic current on an otherwise identical waveform. As with the single-mode integrated amperometry reported previously, the limits of detection are in the femtomole range and linear calibration plots are possible over three orders of magnitude. This new detection method does not require analyte derivatization. The practical utility of this new technique is demonstrated in the analysis of amino acids and sugars in a recombinant mammalian cell culture medium.
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Affiliation(s)
- P Jandik
- Dionex Corporation, Sunnyvale, CA 94088, USA
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Abstract
A mathematical model is developed of the compartmentalized sialylation of N-linked oligosaccharides in order to understand and predict the outcome of sialylation reactions. A set of assumptions are presented, including Michaelis-Menten-type dependency of reaction rate on the concentration of the glycoprotein substrate. The resulting model predicts the heterogeneous outcome of a posttranslational oligosaccharide biosynthesis step, a critical aspect that is not accounted for in the modeling of the cotranslational attachment of oligosaccharides to glycosylation sites (Shelikoff et al., Biotech. Bioeng., 50, 73-90, 1996) or general models of the secretion process (Noe and Delenick, J. Cell Sci., 92, 449-459, 1989). In the steady-state for the likely case where the concentration of substrate is much less than the Km of the sialyltransferase, the model predicts that the extent of sialylation, x, will depend upon the enzyme concentration, enzyme kinetic parameters and substrate residence time in the reaction compartment. The value of x predicted by the model using available literature data is consistent with the values of x that have been recently determined for the glycoproteins CD4 (Spellman et al., Biochemistry, 30, 2395-2406, 1991) and t-PA (Spellman et al., J. Biol. Chem., 264, 14100-14111, 1989) secreted by Chinese hamster ovary cells. For the unsaturated case, the model also predicts that x is independent of the concentration of secreted glycoprotein in the Golgi. The general modeling approach outlined in this article may be applicable to other glycosylation reactions and posttranslational modifications.
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Affiliation(s)
- T J Monica
- Department of Chemical Engineering, Stanford University, CA 94305, USA
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Abstract
Glycoprotein oligosaccharide structure influences numerous important protein properties. In recent years, a number of studies have demonstrated that cell-culture methodology can significantly affect the oligosaccharide structures of recombinant proteins and antibodies, and, in the past year in particular, several of the specific environmental variables responsible for these effects have been identified.
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Affiliation(s)
- D C Andersen
- Department of Chemical Engineering, Stanford University, California 94305-5025
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Andersen DC, Goochee CF, Cooper G, Weitzhandler M. Monosaccharide and oligosaccharide analysis of isoelectric focusing-separated and blotted granulocyte colony-stimulating factor glycoforms using high-pH anion-exchange chromatography with pulsed amperometric detection. Glycobiology 1994; 4:459-67. [PMID: 7530070 DOI: 10.1093/glycob/4.4.459] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
In this study, a sensitive, straightforward technique is developed for the analysis of glycoprotein O-linked oligosaccharides. Specifically, O-linked oligosaccharides of granulocyte colony-stimulating factor (G-CSF) are analysed by separating charged glycoforms using isoelectric focusing, electroblotting to polyvinylidene difluoride, releasing monosaccharides and oligosaccharide alditols from the blotted glycoprotein bands, and producing chromatographs using high-pH anion-exchange chromatography with pulsed amperometric detection. Using this technique, the O-linked structures of G-CSF produced by recombinant Chinese hamster ovary (CHO) cells are deduced by comparison with monosaccharide and oligosaccharide standards. Lectin blotting and peptide sequencing support the identities of the presumed G-CSF glycoforms. The two major glycoforms determined using this methodology correspond to those determined previously for CHO-produced G-CSF using NMR. Additional glycoforms are also identified in this study, presumably resulting from the presence of N-glycolyneuraminic acid in place of N-acetylneuraminic acid. The utility of this analytical approach is then demonstrated in an analysis of the effect of the extracellular environment on the O-linked glycosylation of G-CSF by recombinant CHO cells. Increasing the level of ammonium ion in the culture medium is shown to reduce the percentage of G-CSF produced with sialic acid linked alpha (2,6) to N-acetylgalactosamine.
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Affiliation(s)
- D C Andersen
- Department of Chemical Engineering, Stanford University 94305-5025
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Goochee CF, Gramer MJ, Andersen DC, Bahr JB, Rasmussen JR. The Oligosaccharides of Glycoproteins: Bioprocess Factors Affecting Oligosaccharide Structure and their Effect on Glycoprotein Properties. ACTA ACUST UNITED AC 1991; 9:1347-55. [PMID: 1367768 DOI: 10.1038/nbt1291-1347] [Citation(s) in RCA: 234] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In this review, we organize the recent data concerning the effects of bioprocess factors on the oligosaccharide structure of human therapeutic glycoproteins, with particular emphasis on the influence of the host cell. We also discuss the effect of oligosaccharide structure on glycoprotein properties, including antigenicity, immunogenicity and plasma clearance rate.
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Affiliation(s)
- C F Goochee
- Department of Chemical Engineering, Stanford University, CA 94305-5025
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