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Streese L, Lona G, Wagner J, Knaier R, Schoch R, Kröpfl JM, Gasser BA, Schmidt-Trucksäss A, Hanssen H. Microvascular endothelial dysfunction in heart failure patients: An indication for exercise treatment? Microvasc Res 2022; 142:104345. [PMID: 35182579 DOI: 10.1016/j.mvr.2022.104345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 02/14/2022] [Indexed: 10/19/2022]
Abstract
BACKGROUND Endothelial dysfunction represents a diagnostic marker to differentiate disease severity in chronic heart failure (CHF) patients. Retinal vessel phenotyping was applied in CHF patients as it has been acknowledged as a sensitive diagnostic tool to quantify microvascular health and overall cardiovascular risk. METHODS The central retinal arteriolar (CRAE) and venular diameter equivalents (CRVE) as well as the retinal microvascular function, quantified by arteriolar (aFID) and venular flicker-light induced dilatation (vFID), were analyzed in 26 CHF patients. These data were compared with 26 age- and sex-matched healthy peers. The effects of an exercise intervention on retinal microvascular health in one CHF patient were investigated to demonstrate potentially beneficial effects of exercise treatment in a case report format as proof of concept. RESULTS CHF patients showed narrower CRAE (170 ± 16 μm vs. 176 ± 16 μm, p = 0.237) and wider CRVE (217 ± 20 μm vs. 210 ± 17 μm, p = 0.152), resulting in a significantly lower arteriolar-to-venular diameter ratio (AVR, 0.79 ± 0.07 vs. 0.84 ± 0.06, p = 0.004) compared to controls. More strikingly, CHF patients showed significantly lower mean aFID (1.24 ± 1.14% vs. 3.78 ± 1.85%, p < 0.001) and vFID (2.89 ± 1.33% vs. 3.88 ± 1.83%, p = 0.033). Twelve weeks of exercise therapy induced wider CRAE (143 ± 1.0 μm vs. 153 ± 0.9 μm), narrower CRVE (183 ± 3.1 μm vs. 180 ± 2.4 μm) and improved aFID (0.67% vs. 1.25%) in a male 78 years old CHF patient. CONCLUSIONS aFID is a sensitive diagnostic tool to quantify microvascular impairments in CHF patients. Exercise treatment in CHF patients has high potential to improve retinal microvascular health as a marker for vascular regeneration and overall risk reduction, which warrants further examination by randomized controlled trials.
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Affiliation(s)
- Lukas Streese
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Giulia Lona
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Jonathan Wagner
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Raphael Knaier
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Raphael Schoch
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Julia Maria Kröpfl
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Benedikt Andreas Gasser
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Arno Schmidt-Trucksäss
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Henner Hanssen
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland.
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Schmid M, Kröpfl JM, Spengler CM. Changes in Circulating Stem and Progenitor Cell Numbers Following Acute Exercise in Healthy Human Subjects: a Systematic Review and Meta-analysis. Stem Cell Rev Rep 2021; 17:1091-1120. [PMID: 33389632 PMCID: PMC8316227 DOI: 10.1007/s12015-020-10105-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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] [Accepted: 12/01/2020] [Indexed: 12/22/2022]
Abstract
Despite of the increasing number of investigations on the effects of acute exercise on circulating stem and progenitor cell (SC) numbers, and in particular on respective subgroups, i.e. endothelial (ESC), hematopoietic (HSC), and mesenchymal (MSC) stem and progenitor cells, a consensus regarding mechanisms and extent of these effects is still missing. The aim of this meta-analysis was to systematically evaluate the overall-effects of acute exercise on the different SC-subgroups and investigate possible subject- and intervention-dependent factors affecting the extent of SC-mobilization in healthy humans. Trials assessing SC numbers before and at least one timepoint after acute exercise, were identified in a systematic computerized search. Compared to baseline, numbers were significantly increased for early and non-specified SCs (enSCs) until up to 0.5 h after exercise (0–5 min: +0.64 [Standardized difference in means], p < 0.001; 6–20 min: +0.42, p < 0.001; 0.5 h: +0.29, p = 0.049), for ESCs until 12–48 h after exercise (0–5 min: +0.66, p < 0.001; 6–20 min: +0.43 p < 0.001; 0.5 h: +0.43, p = 0.002; 1 h: +0.58, p = 0.001; 2 h: +0.50, p = 0.002; 3–8 h: +0.70, p < 0.001; 12–48 h: +0.38, p = 0.003) and for HSCs at 0–5 min (+ 0.47, p < 0.001) and at 3 h after exercise (+ 0.68, p < 0.001). Sex, intensity and duration of the intervention had generally no influence. The extent and kinetics of the exercise-induced mobilization of SCs differ between SC-subpopulations. However, also definitions of SC-subpopulations are non-uniform. Therefore, finding a consensus with a clear definition of cell surface markers defining ESCs, HSCs and MSCs is a first prerequisite for understanding this important topic. ![]()
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Affiliation(s)
- M Schmid
- Exercise Physiology Lab, Institute of Human Movement Sciences and Sport, ETH Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland
| | - J M Kröpfl
- Exercise Physiology Lab, Institute of Human Movement Sciences and Sport, ETH Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland
| | - C M Spengler
- Exercise Physiology Lab, Institute of Human Movement Sciences and Sport, ETH Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland. .,Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.
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3
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Schenk M, Kröpfl JM, Hörmann-Kröpfl M, Weiss G. Endometriosis accelerates synchronization of early embryo cell divisions but does not change morphokinetic dynamics in endometriosis patients. PLoS One 2019; 14:e0220529. [PMID: 31369616 PMCID: PMC6675061 DOI: 10.1371/journal.pone.0220529] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 07/17/2019] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVE The pathology of endometriosis and its impact on embryo development is still a black box in reproductive medicine. In this time-lapse study we investigated the influence of endometriosis on morphokinetic parameters of embryo development, taking variables of dynamic monitoring into account. Furthermore we evaluated reproductive medicine treatment outcome such as fetal heartbeat and live birth rate. METHODS 1148 embryos (control: n = 596, endometriosis: n = 552) were retrospectively analyzed. Patients were stimulated with GnRH antagonist protocol. After fertilization, embryos were incubated in a time-lapse system (EmbryoScope). RESULTS The mixed-model analysis revealed a significant main effect of time (p<0.001), with post-hoc tests showing that any time needed to reach a specific developmental stage was significantly different from all the others (all p<0.001). Embryos of endometriosis patients showed the same absolute morphokinetic time parameters as the control group, however, synchronization of early embryo cell divisions (s2) was faster in endometriosis patients compared to the control group. CONCLUSION In general, endometriosis does not induce changes in early embryo morphokinetics. However, observed acceleration in cell cycle synchronization of embryo cleavage patterns might be a missing explanation for contradicting results in literature regarding the impairments in reproductive medicine treatment outcome of endometriosis patients.
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Affiliation(s)
- Michael Schenk
- Das Kinderwunsch Institut Schenk GmbH, Dobl, Austria
- Institute of Human Genetics, Medical University of Graz, Graz, Austria
| | - Julia Maria Kröpfl
- Exercise Physiology Lab, Institute of Human Movement Sciences and Sport, ETH Zurich, Zurich, Switzerland
| | | | - Gregor Weiss
- Das Kinderwunsch Institut Schenk GmbH, Dobl, Austria
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4
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Kammerer T, Faihs V, Hulde N, Bayer A, Hübner M, Brettner F, Karlen W, Kröpfl JM, Rehm M, Spengler C, Schäfer ST. Changes of hemodynamic and cerebral oxygenation after exercise in normobaric and hypobaric hypoxia: associations with acute mountain sickness. Ann Occup Environ Med 2018; 30:66. [PMID: 30479778 PMCID: PMC6245893 DOI: 10.1186/s40557-018-0276-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 09/10/2018] [Accepted: 10/31/2018] [Indexed: 12/14/2022] Open
Abstract
Objective Normobaric (NH) and hypobaric hypoxia (HH) are associated with acute mountain sickness (AMS) and cognitive dysfunction. Only few variables, like heart-rate-variability, are correlated with AMS. However, prediction of AMS remains difficult. We therefore designed an expedition-study with healthy volunteers in NH/HH to investigate additional non-invasive hemodynamic variables associated with AMS. Methods Eleven healthy subjects were examined in NH (FiO2 13.1%; equivalent of 3.883 m a.s.l; duration 4 h) and HH (3.883 m a.s.l.; duration 24 h) before and after an exercise of 120 min. Changes in parameters of electrical cardiometry (cardiac index (CI), left-ventricular ejection time (LVET), stroke volume (SV), index of contractility (ICON)), near-infrared spectroscopy (cerebral oxygenation, rScO2), Lake-Louise-Score (LLS) and cognitive function tests were assessed. One-Way-ANOVA, Wilcoxon matched-pairs test, Spearman's-correlation-analysis and Student's t-test were performed. Results HH increased heart rate (HR), mean arterial pressure (MAP) and CI and decreased LVET, SV and ICON, whereas NH increased HR and decreased LVET. In both NH and HH cerebral oxygenation decreased and LLS increased significantly. After 24 h in HH, 6 of 11 subjects (54.6%) developed AMS. LLS remained increased until 24 h in HH, whereas cognitive function remained unaltered. In HH, HR and LLS were inversely correlated (r = - 0.692; p < 0.05). More importantly, the rScO2-decrease after exercise in NH significantly correlated with LLS after 24 h in HH (r = - 0.971; p < 0.01) and rScO2 correlated significantly with HR (r = 0.802; p < 0.01), CI (r = 0.682; p < 0.05) and SV (r = 0.709; p < 0.05) after exercise in HH. Conclusions Both acute NH and HH altered hemodynamic and cerebral oxygenation and induced AMS. Subjects, who adapted their CI had higher rScO2 and lower LLS. Furthermore, rScO2 after exercise under normobaric conditions was associated with AMS at high altitudes.
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Affiliation(s)
- Tobias Kammerer
- Department of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany.,2Walter Brendel Centre of Experimental Medicine, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany.,5Institute of Anesthesiology, Heart and Diabetes Center NRW, Ruhr University Bochum, Georgstr. 11, 32545 Bad Oeynhausen, Germany
| | - Valentina Faihs
- Department of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Nikolai Hulde
- 5Institute of Anesthesiology, Heart and Diabetes Center NRW, Ruhr University Bochum, Georgstr. 11, 32545 Bad Oeynhausen, Germany
| | - Andreas Bayer
- Department of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Max Hübner
- Department of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany.,2Walter Brendel Centre of Experimental Medicine, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Florian Brettner
- Department of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany.,2Walter Brendel Centre of Experimental Medicine, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Walter Karlen
- 4Mobile Health Systems Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Lengghalde 5, 8092 Zurich, Switzerland
| | - Julia Maria Kröpfl
- 3Exercise Physiology Lab, Institute of Human Movement Sciences and Sport, ETH Zurich, Winterthurerstr. 190, 8057 Zurich, Switzerland
| | - Markus Rehm
- Department of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Christina Spengler
- 3Exercise Physiology Lab, Institute of Human Movement Sciences and Sport, ETH Zurich, Winterthurerstr. 190, 8057 Zurich, Switzerland
| | - Simon Thomas Schäfer
- Department of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany.,2Walter Brendel Centre of Experimental Medicine, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
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Kröpfl JM, Tschakert G, Stelzer I, Pekovits K, Zelzer S, Dohr G, Holasek S, Stojakovic T, Scharnagl H, Spengler CM, Hofmann P. Acute Exercise-Induced Circulating Haematopoietic Stem and Progenitor Cells in Cardiac Patients - A Case Series. Heart Lung Circ 2018; 28:e54-e58. [PMID: 29933914 DOI: 10.1016/j.hlc.2018.05.095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 12/13/2017] [Revised: 04/18/2018] [Accepted: 05/01/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Exercise-induced circulating haematopoietic stem and progenitor cell (HPC) number has been discussed in the context of regeneration in heart disease patients. OBJECTIVE The aim of this pilot study was to compare the effect of different exercise protocols usually applied in cardiac rehabilitation on the number of acute, exercise-induced HPCs, related to potential mediators, e.g. biomarkers of sympathetic and oxidative stress, and inflammation. METHODS This is a case series comprising seven patients suffering from coronary heart disease (CHD) undertaken at the Center for Ambulant Cardiac Rehabilitation. Patients (n=6) performed two exercise modes (constant-load, CLE; high-intensity interval, HIIE) in randomised order. Venous blood was drawn before and immediately after each test to assess CD34+/CD45+ HPC number by flow cytometry and biomarkers in blood plasma. The primary outcome was the change in HPC number, the secondary outcomes were changes in sympathetic/oxidative stress and markers of inflammation. RESULTS Both exercise modes resulted in a non-significant increase in HPC number after exercise, even when the results of both tests were combined. Overall, free norepinephrine increased significantly and was positively related to exercise-induced HPC number (r=0.70, p<0.05). Markers of sympathetic activation (fNE), oxidative stress (myeloperoxidase) and inflammation (interleukin-6) significantly increased after CLE and HIIE with no difference between tests. CONCLUSIONS Interestingly, acute CLE and HIIE did not stimulate significant HPC mobilisation in CHD, although both exercise modes elevated circulating concentrations of sympathetic activation. Haematopoietic stem and progenitor cell mobilisation could be blunted due to disease-related bone-marrow exhaustion.
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Affiliation(s)
- J M Kröpfl
- Exercise Physiology Lab, Institute of Human Movement Sciences and Sport, ETH Zurich, Zurich, Switzerland; Institute of Biophysics, Medical University of Graz, Graz, Austria.
| | - G Tschakert
- Exercise Physiology and Training Research Group, Institute of Sports Science, University of Graz, Graz, Austria
| | - I Stelzer
- Institute of Medical and Chemical Laboratory Diagnostics, LKH Hochsteiermark, Leoben, Austria
| | - K Pekovits
- Department of Ophthalmology, Medical University Graz, Graz, Austria
| | - S Zelzer
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - G Dohr
- Institute of Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria
| | - S Holasek
- Institute for Pathophysiology and Immunology, Medical University of Graz, Graz, Austria
| | - T Stojakovic
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - H Scharnagl
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - C M Spengler
- Exercise Physiology Lab, Institute of Human Movement Sciences and Sport, ETH Zurich, Zurich, Switzerland
| | - P Hofmann
- Exercise Physiology and Training Research Group, Institute of Sports Science, University of Graz, Graz, Austria
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6
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Kröpfl JM, Spengler CM, Frobert A, Ajalbert G, Giraud MN. Myocardial infarction does not affect circulating haematopoietic stem and progenitor cell self-renewal ability in a rat model. Exp Physiol 2017; 103:1-8. [PMID: 29094480 DOI: 10.1113/ep086643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 10/31/2017] [Indexed: 12/16/2022]
Abstract
NEW FINDINGS What is the central question of this study? Although peripheral blood haematopoietic stem and progenitor cells are potentially important in regeneration after acute myocardial infarction, their self-renewal ability in the post-acute phase has not yet been addressed. What is the main finding and its importance? In rat peripheral blood, we show that myocardial infarction does not negatively affect circulating haematopoietic stem and progenitor cell self-renewal ability 2 weeks after acute infarction, which suggests a constant regenerative potential in the myocardial infarction post-acute phase. Given the importance of peripheral blood haematopoietic stem and progenitor cells (HPCs) in post-acute regeneration after acute myocardial infarction (MI), the aim of the present study was to investigate the number and secondary replating capacity/self-renewal ability of HPCs in peripheral blood before and 2 weeks after MI. In female Lewis inbred rats (n = 9), MI was induced by ligation of the left coronary artery, and another nine underwent sham surgery, without ligation, for control purposes. Myocardial infarction was confirmed by troponin I concentrations 24 h after surgery. Peripheral blood was withdrawn and fractional shortening and ejection fraction of the left ventricle were assessed before (day 0) and 14 days after MI or sham surgery (day 14). After mononuclear cell isolation, primary and secondary functional colony-forming unit granulocyte-macrophage (CFU-GM) assays were performed in order to detect the kinetics of functional HPC colony counts and cell self-renewal ability in vitro. The CFU-GM counts and cell self-renewal ability remained unchanged (P > 0.05) in both groups at day 14, without interaction between groups. In the intervention group, higher day 0 CFU-GM counts showed a relationship to lower fractional shortening on day 14 (ρ = -0.82; P < 0.01). Myocardial infarction did not negatively affect circulating HPC self-renewal ability, which suggests a constant regenerative potential in the post-acute phase. A relationship of cardiac contractile function 14 days after MI with circulating CFU-GM counts on day 0 might imply functional colony count as a predictive factor for outcome after infarction.
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Affiliation(s)
- J M Kröpfl
- Exercise Physiology Lab, Institute of Human Movement Sciences and Sport, ETH Zurich, Zurich, Switzerland
| | - C M Spengler
- Exercise Physiology Lab, Institute of Human Movement Sciences and Sport, ETH Zurich, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
| | - A Frobert
- Cardiology, University of Fribourg, Fribourg, Switzerland
| | - G Ajalbert
- Cardiology, University of Fribourg, Fribourg, Switzerland
| | - M N Giraud
- Cardiology, University of Fribourg, Fribourg, Switzerland
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Stelzer I, Kröpfl JM, Fuchs R, Pekovits K, Mangge H, Raggam RB, Gruber HJ, Prüller F, Hofmann P, Truschnig-Wilders M, Obermayer-Pietsch B, Haushofer AC, Kessler HH, Mächler P. Ultra-endurance exercise induces stress and inflammation and affects circulating hematopoietic progenitor cell function. Scand J Med Sci Sports 2014; 25:e442-50. [PMID: 25438993 DOI: 10.1111/sms.12347] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2014] [Indexed: 01/18/2023]
Abstract
Although amateur sports have become increasingly competitive within recent decades, there are as yet few studies on the possible health risks for athletes. This study aims to determine the impact of ultra-endurance exercise-induced stress on the number and function of circulating hematopoietic progenitor cells (CPCs) and hematological, inflammatory, clinical, metabolic, and stress parameters in moderately trained amateur athletes. Following ultra-endurance exercise, there were significant increases in leukocytes, platelets, interleukin-6, fibrinogen, tissue enzymes, blood lactate, serum cortisol, and matrix metalloproteinase-9. Ultra-endurance exercise did not influence the number of CPCs but resulted in a highly significant decline of CPC functionality after the competition. Furthermore, Epstein-Barr virus was seen to be reactivated in one of seven athletes. The link between exercise-induced stress and decline of CPC functionality is supported by a negative correlation between cortisol and CPC function. We conclude that ultra-endurance exercise induces metabolic stress and an inflammatory response that affects not only mature hematopoietic cells but also the function of the immature hematopoietic stem and progenitor cell fraction, which make up the immune system and provide for regeneration.
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Affiliation(s)
- I Stelzer
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - J M Kröpfl
- Institute of Human Movement Sciences and Sport, Exercise Physiology Lab, ETH Zurich, Zurich, Switzerland.,Institute of Biophysics, Medical University of Graz, Graz, Austria
| | - R Fuchs
- Institute of Pathophysiology and Immunology, Medical University of Graz, Graz, Austria
| | - K Pekovits
- Department of Ophthalmology, Medical University of Graz, Graz, Austria
| | - H Mangge
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria.,BioTechMed-Graz, Graz, Austria
| | - R B Raggam
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - H-J Gruber
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - F Prüller
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - P Hofmann
- Institute of Sports Science, Karl-Franzens-University of Graz, Graz, Austria
| | - M Truschnig-Wilders
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - B Obermayer-Pietsch
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - A C Haushofer
- Institute of Medical and Chemical Laboratory Diagnostics Wels-Grieskirchen, Wels-Grieskirchen, Austria
| | - H H Kessler
- Research Unit Molecular Diagnostics, IHMEM, Medical University of Graz, Graz, Austria
| | - P Mächler
- Center for Cardiac Rehabilitation, SKA-PVA St. Radegund, Graz, Austria
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8
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Pekovits K, Kröpfl JM, Stelzer I, Payer M, Hutter H, Dohr G. Human mesenchymal progenitor cells derived from alveolar bone and human bone marrow stromal cells: a comparative study. Histochem Cell Biol 2013; 140:611-21. [PMID: 23996194 DOI: 10.1007/s00418-013-1140-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2013] [Indexed: 01/09/2023]
Abstract
The aim of the present study was to evaluate the potential of intraoral harvested alveolar bone as an alternative source of multipotent mesenchymal stromal cells for future applications in oral and maxillofacial tissue engineering. Explant cultures were established from 20 alveolar bone samples harvested from the oblique line immediately before wisdom tooth removal. Morphology and proliferation characteristics of the in vitro expanded cells, referred to as human alveolar bone-derived cells (hABDCs), were studied using phase-contrast microscopy. Immunocytochemical analysis of their surface marker expression was conducted using monoclonal antibodies defining mesenchymal stromal cells. To evaluate their multilineage differentiation potential, hABDCs were induced to differentiate along the osteogenic, adipogenic, and chondrogenic lineage and compared to bone marrow mesenchymal stromal cells (hBMSCs) on mRNA and protein levels applying RT-PCR and cytochemical staining methods. hABDCs showed typical morphological characteristics comparable to those of hBMSCs such as being mononuclear, fibroblast-like, spindle-shaped, and plastic adherent. Immunophenotypically, cells were positive for CD105, CD90, and CD73 while negative for CD45, CD34, CD14, CD79α, and HLA-DR surface molecules, indicating an antigen expression pattern considered typical for multipotent mesenchymal stromal cells. As evidenced by RT-PCR and cytochemistry, hABDCs showed multilineage differentiation and similar chondrogenic and osteogenic differentiation potentials when compared to hBMSCs. Our findings demonstrate that human alveolar bone contains mesenchymal progenitor cells that can be isolated and expanded in vitro and are capable of trilineage differentiation, providing a reservoir of multipotent mesenchymal cells from an easily accessible tissue source.
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Affiliation(s)
- Karin Pekovits
- Institute of Cell Biology, Histology and Embryology, Center of Molecular Medicine, Medical University of Graz, Harrachgasse 21/7, 8010, Graz, Austria,
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