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Bello KAS, Wilke MCB, Simões RP, Landim-Vieira M, Langa P, Stefanon I, Vassallo DV, Fernandes AA. Chronic exposure to mercury increases arrhythmia and mortality post-acute myocardial infarction in rats. Front Physiol 2023; 14:1260509. [PMID: 37929206 PMCID: PMC10622797 DOI: 10.3389/fphys.2023.1260509] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/29/2023] [Indexed: 11/07/2023] Open
Abstract
Introduction: Mercury (Hg) is a heavy metal that causes a variety of toxic effects in eukaryotic cells. Previous studies have reported detrimental effects of mercury toxicity in the cardiovascular system. Given the importance of understanding the relationship between Hg and cardiovascular disease, we sought to investigate if the Hg could worsen the myocardial repercussions following ischemic injury. We demonstrated that once mercury toxicity is established, it can influence the outcome of myocardial infarction (MI). Methods: Male Wistar rats received intramuscular injections of either saline (NaCl 0.9%) or mercuric chloride (HgCl2, first dose of 4.6 μg/kg, and subsequent doses of 0.07 μg/kg/day) for 4 weeks. Three weeks post-exposure, we induced transmural infarction in the left ventricle free wall through coronary artery occlusion surgery. Results: ECG recordings obtained from MI groups demonstrated alterations in the rhythm of the heartbeat/heart electrical activity, as expected, including ventricular extrasystoles and ventricular tachycardia. However, the MI group exposed to Hg (MI-Hg) exhibited augmented ventricular extrasystoles and ventricular tachycardia compared to the MI group. Also, Basckó coefficient revealed that the arrhythmic events-after MI-were aggravated by Hg exposure. Discussion: Our results indicate that the significantly increased mortality in MI-Hg groups when compared to MI (21%, MI vs 32%, MI-Hg) is correlated with greater occurrence of arrhythmias. In conclusion, this study further supports the idea that exposure to mercury (Hg) should be recognized as a significant risk factor that exacerbates the impact of cardiac ischemic injury, potentially leading to an increased mortality rate among patients experiencing acute MI.
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Affiliation(s)
- Keren A. S. Bello
- Department of Physiological Sciences of the Federal University of Espirito Santo, Vitória, Espirito Santo, Brazil
| | - Maria Clara B. Wilke
- Department of Physiological Sciences of the Federal University of Espirito Santo, Vitória, Espirito Santo, Brazil
| | - Rakel P. Simões
- Department of Physiological Sciences of the Federal University of Espirito Santo, Vitória, Espirito Santo, Brazil
| | - Maicon Landim-Vieira
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL, United States
| | - Paulina Langa
- Department of Medicine, Division of Cardiology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Ivanita Stefanon
- Department of Physiological Sciences of the Federal University of Espirito Santo, Vitória, Espirito Santo, Brazil
| | - Dalton Valentim Vassallo
- Department of Physiological Sciences of the Federal University of Espirito Santo, Vitória, Espirito Santo, Brazil
| | - Aurélia Araújo Fernandes
- Department of Physiological Sciences of the Federal University of Espirito Santo, Vitória, Espirito Santo, Brazil
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Shafaattalab S, Li AY, Jayousi F, Maaref Y, Dababneh S, Hamledari H, Baygi DH, Barszczewski T, Ruprai B, Jannati S, Nagalingam R, Cool AM, Langa P, Chiao M, Roston T, Solaro RJ, Sanatani S, Toepfer C, Lindert S, Lange P, Tibbits GF. Mechanisms of Pathogenicity of Hypertrophic Cardiomyopathy-Associated Troponin T (TNNT2) Variant R278C +/- During Development. bioRxiv 2023:2023.06.06.542948. [PMID: 37609317 PMCID: PMC10441323 DOI: 10.1101/2023.06.06.542948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Hypertrophic cardiomyopathy (HCM) is one of the most common heritable cardiovascular diseases and variants of TNNT2 (cardiac troponin T) are linked to increased risk of sudden cardiac arrest despite causing limited hypertrophy. In this study, a TNNT2 variant, R278C+/-, was generated in both human cardiac recombinant/reconstituted thin filaments (hcRTF) and human- induced pluripotent stem cells (hiPSCs) to investigate the mechanisms by which the R278C+/- variant affects cardiomyocytes at the proteomic and functional levels. The results of proteomics analysis showed a significant upregulation of markers of cardiac hypertrophy and remodeling in R278C+/- vs. the isogenic control. Functional measurements showed that R278C+/- variant enhances the myofilament sensitivity to Ca2+, increases the kinetics of contraction, and causes arrhythmia at frequencies >75 bpm. This study uniquely shows the profound impact of the TNNT2 R278C+/- variant on the cardiomyocyte proteomic profile, cardiac electrical and contractile function in the early stages of cardiac development.
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Affiliation(s)
- Sanam Shafaattalab
- Cellular and Regenerative Medicine Centre, BC Children’s Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
- Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
| | - Alison Y Li
- Cellular and Regenerative Medicine Centre, BC Children’s Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
- Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
| | - Farah Jayousi
- Cellular and Regenerative Medicine Centre, BC Children’s Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
- Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
| | - Yasaman Maaref
- Cellular and Regenerative Medicine Centre, BC Children’s Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
- Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
| | - Saif Dababneh
- Cellular and Regenerative Medicine Centre, BC Children’s Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
- Department of Cellular and Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Homa Hamledari
- Cellular and Regenerative Medicine Centre, BC Children’s Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
- Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
| | - Dina Hosseini Baygi
- Cellular and Regenerative Medicine Centre, BC Children’s Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
- Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
| | - Tiffany Barszczewski
- Cellular and Regenerative Medicine Centre, BC Children’s Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
- Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
| | - Balwinder Ruprai
- Cellular and Regenerative Medicine Centre, BC Children’s Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
- Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
| | - Shayan Jannati
- Cellular and Regenerative Medicine Centre, BC Children’s Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
- Mechanical Engineering, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Raghu Nagalingam
- Cellular and Regenerative Medicine Centre, BC Children’s Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
- Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
| | - Austin M Cool
- Department of Chemistry and Biochemistry, Ohio State University, Columbus, OH, USA
| | - Paulina Langa
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Mu Chiao
- Mechanical Engineering, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Thomas Roston
- Division of Cardiology and Centre for Cardiovascular Innovation, The University of British Columbia 1081 Burrard Street, Level 4 Cardiology Vancouver, BC, V6Z 1Y6, Canada
| | - R John Solaro
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Shubhayan Sanatani
- Cellular and Regenerative Medicine Centre, BC Children’s Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
| | | | - Steffen Lindert
- Mechanical Engineering, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Philipp Lange
- Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC
- Michael Cuccione Childhood Cancer Research Program, BC Children’s Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
| | - Glen F Tibbits
- Cellular and Regenerative Medicine Centre, BC Children’s Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
- Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
- Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
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3
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Langa P, Shafaattalab S, Goldspink PH, Wolska BM, Fernandes AA, Tibbits GF, Solaro RJ. A perspective on Notch signalling in progression and arrhythmogenesis in familial hypertrophic and dilated cardiomyopathies. Philos Trans R Soc Lond B Biol Sci 2023; 378:20220176. [PMID: 37122209 PMCID: PMC10150215 DOI: 10.1098/rstb.2022.0176] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
Abstract
In this perspective, we discussed emerging data indicating a role for Notch signalling in inherited disorders of the heart failure with focus on hypertrophic cardiomyopathy (HCM) and dilated cardiomyopathy (DCM) linked to variants of genes encoding mutant proteins of the sarcomere. We recently reported an upregulation of elements in the Notch signalling cascade in cardiomyocytes derived from human inducible pluripotent stem cells expressing a TNNT2 variant encoding cardiac troponin T (cTnT-I79N+/-), which induces hypertrophy, remodelling, abnormalities in excitation-contraction coupling and electrical instabilities (Shafaattalab S et al. 2021 Front. Cell Dev. Biol. 9, 787581. (doi:10.3389/fcell.2021.787581)). Our search of the literature revealed the novelty of this finding and stimulated us to discuss potential connections between the Notch signalling pathway and familial cardiomyopathies. Our considerations focused on the potential role of these interactions in arrhythmias, microvascular ischaemia, and fibrosis. This finding underscored a need to consider the role of Notch signalling in familial cardiomyopathies which are trigged by sarcomere mutations engaging mechano-signalling pathways for which there is evidence of a role for Notch signalling with crosstalk with Hippo signalling. Our discussion included a role for both cardiac myocytes and non-cardiac myocytes in progression of HCM and DCM. This article is part of the theme issue 'The heartbeat: its molecular basis and physiological mechanisms'.
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Affiliation(s)
- Paulina Langa
- Department of Physiology and Biophysics and the Center for Cardiovascular Research, Chicago, IL, 60612, USA
| | - Sanam Shafaattalab
- Molecular Biology and Biochemistry; BC Children's Hospital Research Institute, Vancouver, BC, V5Z 4H4; Simon Fraser University Burnaby, British Columbia, V5A 4H4, Canada
| | - Paul H Goldspink
- Department of Physiology and Biophysics and the Center for Cardiovascular Research, Chicago, IL, 60612, USA
| | - Beata M Wolska
- Department of Physiology and Biophysics and the Center for Cardiovascular Research, Chicago, IL, 60612, USA
- Department of Medicine, Division of Cardiology, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Aurelia A Fernandes
- Department of Physiology and Biophysics and the Center for Cardiovascular Research, Chicago, IL, 60612, USA
| | - Glen F Tibbits
- Molecular Biology and Biochemistry; BC Children's Hospital Research Institute, Vancouver, BC, V5Z 4H4; Simon Fraser University Burnaby, British Columbia, V5A 4H4, Canada
| | - R John Solaro
- Department of Physiology and Biophysics and the Center for Cardiovascular Research, Chicago, IL, 60612, USA
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Langa P, Marszalek RJ, Warren CM, Chowdhury SK, Halas M, Batra A, Rafael-Clyke K, Bacon A, Goldspink PH, Solaro RJ, Wolska BM. Altered coronary artery function, arteriogenesis and endothelial YAP signaling in postnatal hypertrophic cardiomyopathy. Front Physiol 2023; 14:1136852. [PMID: 37064918 PMCID: PMC10102353 DOI: 10.3389/fphys.2023.1136852] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 03/13/2023] [Indexed: 04/03/2023] Open
Abstract
Introduction: Hypertrophic cardiomyopathy (HCM) is a cardiovascular genetic disease caused largely by sarcomere protein mutations. Gaps in our understanding exist as to how maladaptive sarcomeric biophysical signals are transduced to intra- and extracellular compartments leading to HCM progression. To investigate early HCM progression, we focused on the onset of myofilament dysfunction during neonatal development and examined cardiac dynamics, coronary vascular structure and function, and mechano-transduction signaling in mice harboring a thin-filament HCM mutation. Methods: We studied postnatal days 7-28 (P7-P28) in transgenic (TG) TG-cTnT-R92Q and non-transgenic (NTG) mice using skinned fiber mechanics, echocardiography, biochemistry, histology, and immunohistochemistry. Results: At P7, skinned myofiber bundles exhibited an increased Ca2+-sensitivity (pCa50 TG: 5.97 ± 0.04, NTG: 5.84 ± 0.01) resulting from cTnT-R92Q expression on a background of slow skeletal (fetal) troponin I and α/β myosin heavy chain isoform expression. Despite the transition to adult isoform expressions between P7-P14, the increased Ca2+- sensitivity persisted through P28 with no apparent differences in gross morphology among TG and NTG hearts. At P7 significant diastolic dysfunction was accompanied by coronary flow perturbation (mean diastolic velocity, TG: 222.5 ± 18.81 mm/s, NTG: 338.7 ± 28.07 mm/s) along with localized fibrosis (TG: 4.36% ± 0.44%, NTG: 2.53% ± 0.47%). Increased phosphorylation of phospholamban (PLN) was also evident indicating abnormalities in Ca2+ homeostasis. By P14 there was a decline in arteriolar cross-sectional area along with an expansion of fibrosis (TG: 9.72% ± 0.73%, NTG: 2.72% ± 0.2%). In comparing mechano-transduction signaling in the coronary arteries, we uncovered an increase in endothelial YAP expression with a decrease in its nuclear to cytosolic ratio at P14 in TG hearts, which was reversed by P28. Conclusion: We conclude that those early mechanisms that presage hypertrophic remodeling in HCM include defective biophysical signals within the sarcomere that drive diastolic dysfunction, impacting coronary flow dynamics, defective arteriogenesis and fibrosis. Changes in mechano-transduction signaling between the different cellular compartments contribute to the pathogenesis of HCM.
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Affiliation(s)
- Paulina Langa
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
- Center for Cardiovascular Research, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Richard J. Marszalek
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
- Center for Cardiovascular Research, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Chad M. Warren
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
- Center for Cardiovascular Research, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Shamim K. Chowdhury
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Monika Halas
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Ashley Batra
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Koreena Rafael-Clyke
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Angelie Bacon
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Paul H. Goldspink
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
- Center for Cardiovascular Research, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - R. John Solaro
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
- Center for Cardiovascular Research, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Beata M. Wolska
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
- Center for Cardiovascular Research, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
- Department of Medicine, Division of Cardiology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
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5
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Langa P, Marszalek R, Warren CM, Chowdhury S, Halas M, Batra A, Rafael-Clyke K, Goldspink P, Solaro JR, Wolska B. Postnatal hypertrophic cardiomyopathy is associated with alterations in coronary flow, YAP signaling and vasculogenesis. J Mol Cell Cardiol 2022. [DOI: 10.1016/j.yjmcc.2022.08.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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6
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Solís C, Thompson WC, Peña JR, McDermott-Roe C, Langa P, Warren CM, Chrzanowska M, Wolska BM, Solaro RJ, Pieter Detombe, Goldspink PH. Mechano-growth factor E-domain modulates cardiac contractile function through 14-3-3 protein interactomes. Front Physiol 2022; 13:1028345. [PMID: 36467694 PMCID: PMC9709209 DOI: 10.3389/fphys.2022.1028345] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/31/2022] [Indexed: 11/18/2022] Open
Abstract
In the heart, alternative splicing of the igf-I gene produces two isoforms: IGF-IEa and IGF-IEc, (Mechano-growth factor, MGF). The sequence divergence between their E-domain regions suggests differential isoform function. To define the biological actions of MGF's E-domain, we performed in silico analysis of the unique C-terminal sequence and identified a phosphorylation consensus site residing within a putative 14-3-3 binding motif. To test the functional significance of Ser 18 phosphorylation, phospho-mimetic (S/E18) and phospho-null (S/A18) peptides were delivered to mice at different doses for 2 weeks. Cardiovascular function was measured using echocardiography and a pressure-volume catheter. At the lowest (2.25 mg/kg/day) and highest (9 mg/kg/day) doses, the peptides produced a depression in systolic and diastolic parameters. However, at 4.5 mg/kg/day the peptides produced opposing effects on cardiac function. Fractional shortening analysis also showed a similar trend, but with no significant change in cardiac geometry. Microarray analysis discovered 21 genes (FDR p < 0.01), that were expressed accordant with the opposing effects on contractile function at 4.5 mg/kg/day, with the nuclear receptor subfamily 4 group A member 2 (Nr4a2) identified as a potential target of peptide regulation. Testing the regulation of the Nr4a family, showed the E-domain peptides modulate Nr4a gene expression following membrane depolarization with KCl in vitro. To determine the potential role of 14-3-3 proteins, we examined 14-3-3 isoform expression and distribution. 14-3-3γ localized to the myofilaments in neonatal cardiac myocytes, the cardiac myocytes and myofilament extracts from the adult heart. Thermal shift analysis of recombinant 14-3-3γ protein showed the S/A18 peptide destabilized 14-3-3γ folding. Also, the S/A18 peptide significantly inhibited 14-3-3γ's ability to interact with myosin binding protein C (MYPC3) and phospholamban (PLN) in heart lysates from dobutamine injected mice. Conversely, the S/E18 peptide showed no effect on 14-3-3γ stability, did not inhibit 14-3-3γ's interaction with PLN but did inhibit the interaction with MYPC3. Replacing the glutamic acid with a phosphate group on Ser 18 (pSer18), significantly increased 14-3-3γ protein stability. We conclude that the state of Ser 18 phosphorylation within the 14-3-3 binding motif of MGF's E-domain, modulates protein-protein interactions within the 14-3-3γ interactome, which includes proteins involved in the regulation of contractile function.
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Affiliation(s)
- Christopher Solís
- Department of Physiology and Biophysics, University of Illinois Chicago, Chicago, IL, United States
| | - Walter C. Thompson
- Department of Physiology and Biophysics, University of Illinois Chicago, Chicago, IL, United States
| | - James R. Peña
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Christopher McDermott-Roe
- Department of Medicine, and Department of Genetics, Perelman School of Medicine, Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA, United States
| | - Paulina Langa
- Department of Physiology and Biophysics, University of Illinois Chicago, Chicago, IL, United States,Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL, United States
| | - Chad M. Warren
- Department of Physiology and Biophysics, University of Illinois Chicago, Chicago, IL, United States,Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL, United States
| | - Magdalena Chrzanowska
- Blood Research Institute, Versiti, Department of Pharmacology and Toxicology, Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Beata M. Wolska
- Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL, United States,Department of Medicine, Division of Cardiology, University of Illinois at Chicago, Chicago, IL, United States
| | - R. John Solaro
- Department of Physiology and Biophysics, University of Illinois Chicago, Chicago, IL, United States,Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Pieter Detombe
- Department of Physiology and Biophysics, University of Illinois Chicago, Chicago, IL, United States,Phymedexp, Université de Montpellier, Inserm, CNRS, Montpellier, France
| | - Paul H. Goldspink
- Department of Physiology and Biophysics, University of Illinois Chicago, Chicago, IL, United States,Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States,*Correspondence: Paul H. Goldspink,
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7
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Halas M, Langa P, Warren CM, Goldspink PH, Wolska BM, Solaro RJ. Effects of Sarcomere Activators and Inhibitors Targeting Myosin Cross-Bridges on Ca2+-Activation of Mature and Immature Mouse Cardiac Myofilaments. Mol Pharmacol 2022; 101:286-299. [PMID: 35236770 PMCID: PMC9092471 DOI: 10.1124/molpharm.121.000420] [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] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 02/16/2022] [Indexed: 11/22/2022] Open
Abstract
We tested the hypothesis that isoform shifts in sarcomeres of the immature heart modify the effect of cardiac myosin-directed sarcomere inhibitors and activators. Omecamtiv mecarbil (OM) activates tension and is in clinical trials for the treatment of adult acute and chronic heart failure. Mavacamten (Mava) inhibits tension and is in clinical trials to relieve hyper-contractility and outflow obstruction in advanced genetic hypertrophic cardiomyopathy (HCM) linked commonly to mutations in sarcomeric proteins. To address the effect of these agents in developing sarcomeres we isolated heart fiber bundles, extracted membranes with Triton X-100, and measured tension developed over a range of Ca2+ concentrations with and without OM or Mava treatment. We made measurements in fiber bundles from hearts of adult non-transgenic controls (NTG) expressing cardiac troponin I (cTnI), and from hearts of transgenic mice (TG-ssTnI) expressing the fetal/neonatal form, slow skeletal troponin I (ssTnI). We also compared fibers from 7+14-day-old NTG mice expressing ssTnI and cTnI. These studies were repeated with 7+14-day old transgenic mice (TG-cTnT-R92Q) expressing a mutant form of cardiac TnT (cTnT) linked to HCM. OM increased Ca2+-sensitivity and decreased cooperative activation in both ssTnI- and cTnI- regulated myofilaments with a similar effect reducing sub-maximal tension in immature and mature myofilaments. Although Mava decreased tension similarly in cTnI- and ssTnI-regulated myofilaments controlled either by cTnT or cTnT-R92Q, its effect involved a depressed Ca2+-sensitivity in the mature cTnT-R92-myofilaments. Our data demonstrate an influence of myosin and thin filament-associated proteins on the actions of myosin-directed agents such as OM and Mava. Significance Statement The effects of myosin-targeted activators and inhibitors on Ca2+-activated tension in developing cardiac sarcomeres presented here provide novel, ex-vivo evidence as to their actions in early-stage cardiac disorders. These studies advance understanding of the molecular mechanisms of these agents that is important in pre-clinical studies employing sarcomere Ca2+-response as a screening approach. The data also inform the use of commonly immature cardiac myocytes generated from human inducible pluripotent stem cells in screening for sarcomere activators and inhibitors.
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Affiliation(s)
- Monika Halas
- Physiology and Biophysics, University of Illinois at Chicago, United States
| | - Paulina Langa
- Physiology and Biophysics, University of Illinois at Chicago, United States
| | - Chad M Warren
- Physiology and Biophysics, University of Illinois at Chicago, United States
| | - Paul H Goldspink
- Physiology and Biophysics, University of Illinois at Chicago, United States
| | - Beata M Wolska
- Department of Medicine, University of Illinois at Chicago, United States
| | - R John Solaro
- Physiology and Biophysics, University of Illinois at Chicago, United States
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8
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Siemionow M, Langa P, Harasymczuk M, Cwykiel J, Sielewicz M, Smieszek J, Heydemann A. Human dystrophin expressing chimeric (DEC) cell therapy ameliorates cardiac, respiratory, and skeletal muscle's function in Duchenne muscular dystrophy. Stem Cells Transl Med 2021; 10:1406-1418. [PMID: 34291884 PMCID: PMC8459641 DOI: 10.1002/sctm.21-0054] [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] [Received: 02/12/2021] [Revised: 06/11/2021] [Accepted: 07/07/2021] [Indexed: 12/28/2022] Open
Abstract
Duchenne muscular dystrophy (DMD) is a progressive and lethal disease, caused by X‐linked mutations of the dystrophin encoding gene. The lack of dystrophin leads to muscle weakness, degeneration, fibrosis, and progressive loss of skeletal, cardiac, and respiratory muscle function resulting in premature death due to the cardiac and respiratory failure. There is no cure for DMD and current therapies neither cure nor arrest disease progression. Thus, there is an urgent need to develop new approaches and safer therapies for DMD patients. We have previously reported functional improvements which correlated with increased dystrophin expression following transplantation of dystrophin expressing chimeric (DEC) cells of myoblast origin to the mdx mouse models of DMD. In this study, we demonstrated that systemic‐intraosseous transplantation of DEC human cells derived from myoblasts of normal and DMD‐affected donors, increased dystrophin expression in cardiac, respiratory, and skeletal muscles of the mdx/scid mouse model of DMD. DEC transplant correlated with preservation of ejection fraction and fractional shortening on echocardiography, improved respiratory function on plethysmography, and improved strength and function of the limb skeletal muscles. Enhanced function was associated with improved muscle histopathology, revealing reduced mdx pathology, fibrosis, decreased inflammation, and preserved muscle morphology and architecture. Our findings confirm that DECs generate a systemic protective effect in DMD‐affected target organs. Therefore, DECs represents a novel therapeutic approach with the potential to preserve or enhance multiorgan function of the skeletal, cardiac, and respiratory muscles critical for the well‐being of DMD patients.
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Affiliation(s)
- Maria Siemionow
- Department of Orthopaedics, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Paulina Langa
- Department of Orthopaedics, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Michal Harasymczuk
- Department of Orthopaedics, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Joanna Cwykiel
- Department of Orthopaedics, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Magdalena Sielewicz
- Department of Orthopaedics, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Jaroslaw Smieszek
- Department of Orthopaedics, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Ahlke Heydemann
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, Illinois, USA.,Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, Illinois, USA
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9
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Solaro RJ, Rosas PC, Langa P, Warren CM, Wolska BM, Goldspink PH. Mechanisms of troponin release into serum in cardiac injury associated with COVID-19 patients. Int J Cardiol Cardiovasc Dis 2021; 1:41-47. [PMID: 34734211 PMCID: PMC8562719 DOI: 10.46439/cardiology.1.006] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Serum levels of thin filament proteins, cardiac troponin T (cTnT) and cardiac troponin I (cTnI) employing high sensitivity antibodies provide a state-of-the art determination of cardiac myocyte injury in COVID-19 patients. Although there is now sufficient evidence of the value of these determinations in patients infected with SARS-CoV-2, mechanisms of their release have not been considered in depth. We summarize the importance of these mechanisms with emphasis on their relation to prognosis, stratification, and treatment of COVID-19 patients. Apart from frank necrotic cell death, there are other mechanisms of myocyte injury leading to membrane fragility that provoke release of cTnT and cTnI. We discuss a rationale for understanding these mechanisms in COVID-19 patients with co-morbidities associated with myocyte injury such as heart failure, hypertension, arrythmias, diabetes, and inflammation. We describe how understanding these significant aspects of these mechanisms in the promotion of angiotensin signaling by SARS-CoV-2 can affect treatment options in the context of individualized therapies. Moreover, with likely omic data related to serum troponins and with the identification of elevations of serum troponins now more broadly detected employing high sensitivity antibodies, we think it is important to consider molecular mechanisms of elevations in serum troponin as an element in clinical decisions and as a critical aspect of development of new therapies.
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Affiliation(s)
- R. John Solaro
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, IL, USA
- Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL, USA
| | - Paola C. Rosas
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, IL, USA
- Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL, USA
| | - Paulina Langa
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, IL, USA
- Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL, USA
| | - Chad M. Warren
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, IL, USA
- Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL, USA
| | - Beata M. Wolska
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, IL, USA
- Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL, USA
- Division of Cardiology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Paul H. Goldspink
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, IL, USA
- Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL, USA
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Deptuła M, Karpowicz P, Wardowska A, Sass P, Sosnowski P, Mieczkowska A, Filipowicz N, Dzierżyńska M, Sawicka J, Nowicka E, Langa P, Schumacher A, Cichorek M, Zieliński J, Kondej K, Kasprzykowski F, Czupryn A, Janus Ł, Mucha P, Skowron P, Piotrowski A, Sachadyn P, Rodziewicz-Motowidło S, Pikuła M. Development of a Peptide Derived from Platelet-Derived Growth Factor (PDGF-BB) into a Potential Drug Candidate for the Treatment of Wounds. Adv Wound Care (New Rochelle) 2020; 9:657-675. [PMID: 33124966 PMCID: PMC7698658 DOI: 10.1089/wound.2019.1051] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 06/21/2019] [Accepted: 09/13/2019] [Indexed: 12/16/2022] Open
Abstract
Objective: This study evaluated the use of novel peptides derived from platelet-derived growth factor (PDGF-BB) as potential wound healing stimulants. One of the compounds (named PDGF2) was subjected for further research after cytotoxicity and proliferation assays on human skin cells. Further investigation included evaluation of: migration and chemotaxis of skin cells, immunological and allergic safety, the transcriptional analyses of adipose-derived stem cells (ASCs) and dermal fibroblasts stimulated with PDGF2, and the use of dorsal skin wound injury model to evaluate the effect of wound healing in mice. Approach: Colorimetric lactate dehydrogenase and tetrazolium assays were used to evaluate the cytotoxicity and the effect on proliferation. PDGF2 effect on migration and chemotaxis was also checked. Immunological safety and allergic potential were evaluated with a lymphocyte activation and basophil activation test. Transcriptional profiles of ASCs and primary fibroblasts were assessed after stimulation with PDGF2. Eight-week-old BALB/c female mice were used for dorsal skin wound injury model. Results: PDGF2 showed low cytotoxicity, pro-proliferative effects on human skin cells, high immunological safety, and accelerated wound healing in mouse model. Furthermore, transcriptomic analysis of ASCs and fibroblasts revealed the activation of processes involved in wound healing and indicated its safety. Innovation: A novel peptide derived from PDGF-BB was proved to be safe drug candidate in wound healing. We also present a multifaceted in vitro model for the initial screening of new compounds that may be potentially useful in wound healing stimulation. Conclusion: The results show that peptide derived from PDGF-BB is a promising drug candidate for wound treatment.
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Affiliation(s)
- Milena Deptuła
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, Gdansk, Poland
| | - Przemysław Karpowicz
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Anna Wardowska
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, Gdansk, Poland
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
| | - Piotr Sass
- Laboratory for Regenerative Biotechnology, Gdansk University of Technology, Gdansk, Poland
| | - Paweł Sosnowski
- Laboratory for Regenerative Biotechnology, Gdansk University of Technology, Gdansk, Poland
| | | | | | - Maria Dzierżyńska
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Justyna Sawicka
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Ewa Nowicka
- Department of Clinical Anatomy, Medical University of Gdansk, Gdansk, Poland
| | - Paulina Langa
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
| | | | | | - Jacek Zieliński
- Department of Surgical Oncology, and Medical University of Gdansk, Gdansk, Poland
| | - Karolina Kondej
- Department of Plastic Surgery, Medical University of Gdansk, Gdansk, Poland
| | | | - Artur Czupryn
- Laboratory of Neurobiology, Nencki Institute of Experimental Biology PAS, Warsaw, Poland
| | | | - Piotr Mucha
- Department of Biochemistry, and Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Piotr Skowron
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | | | - Paweł Sachadyn
- Laboratory for Regenerative Biotechnology, Gdansk University of Technology, Gdansk, Poland
| | | | - Michał Pikuła
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, Gdansk, Poland
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
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11
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Golab K, Krzystyniak A, Langa P, Pikuła M, Kunovac S, Borek P, Trzonkowski P, Millis JM, Fung J, Witkowski P. Effect of serum on SmartFlare™ RNA Probes uptake and detection in cultured human cells. Biomed J Sci Tech Res 2020; 28:21788-21793. [PMID: 32851205 PMCID: PMC7447198] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
SmartFlare™ RNA Detection Probes from Millipore is a novel technology to detect RNA in live cells based on the use of 12 nm gold nanoparticles coated with nucleotides. We proved that SmartFlares™ are internalized by human primary lymphocytes. However, fluorescence signals from target RNA detection can only be observed in the presence of Fetal Bovine Serum (FBS) in the medium, whereas it is not detectable without FBS or when medium is supplemented with human albumin. Image analysis of fluorescence generated from SmartFlare™ Uptake Control (gives constant signal regardless of contact with RNA) and RNA Specific Probes revealed further differences. In the presence of FBS, the fluorescence signal for both reagents was diffused within the cells, whereas in the absence of FBS, it was detected as single spots within the cells only when the Uptake Control was used. It is possible that FBS components are necessary for SmartFlare™ Probes to be released from cellular compartments into the cytoplasm where they can get into contact with target RNA. The exact mechanism of this phenomena should be further determined. However, for the first time, we present here that FBS in the cell culture medium is essential for RNA detection by SmartFlare™ technology in human lymphocytes.
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Affiliation(s)
- Karolina Golab
- Department of Surgery, University of Chicago, Chicago, IL, USA
| | - Adam Krzystyniak
- Department of Surgery, University of Chicago, Chicago, IL, USA
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
- Laboratory of Cell Biophysics, Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - Paulina Langa
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
- Microsurgery Research, Department of Orthopaedics, University of Illinois at Chicago, Chicago, IL, USA
| | - Michał Pikuła
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, Gdansk, Poland
| | - Stefan Kunovac
- Department of Surgery, University of Chicago, Chicago, IL, USA
| | - Peter Borek
- Department of Surgery, University of Chicago, Chicago, IL, USA
| | - Piotr Trzonkowski
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
| | | | - John Fung
- Department of Surgery, University of Chicago, Chicago, IL, USA
| | - Piotr Witkowski
- Department of Surgery, University of Chicago, Chicago, IL, USA
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Kamińska J, Langa P, Deptuła M, Zieliński J, Sachadyn P, Wardowska A, Pikuła M. Transcriptional activity of epigenetic remodeling genes declines in keratinocytes after in vitro expansion. Adv Med Sci 2019; 64:274-279. [PMID: 30901693 DOI: 10.1016/j.advms.2019.03.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 12/06/2018] [Revised: 01/29/2019] [Accepted: 03/07/2019] [Indexed: 11/17/2022]
Abstract
PURPOSE In vitro expansion is an invaluable method to obtain keratinocytes in amounts necessary for effective transplantation therapies. In vitro cell culturing provokes questions concerning potential epigenetic alterations occurring in expanded cells in the context of usefulness for transplantation and safety. The purpose of this study was to investigate as to whether keratinocyte expansion is associated with changes in the activity of genes responsible for the maintenance of epigenetic stability. MATERIALS AND METHODS We focussed on the transcriptional activity of genes involved in different epigenetic mechanisms including DNA methylation and histone modifications. We used quantitative real-time PCR to determine transcript levels of 16 epigenetic remodelling markers in 14 patients in the epidermal cells directly after collection and after in vitro expansion. RESULTS We observed a remarkable decline in the transcriptional activity of the epigenetic remodelling genes following in vitro expansion, while no further fall of expression with passaging. In whole skin, we found even higher expression levels of the epigenetic markers. CONCLUSIONS Transmission to in vitro environment challenges cellular signalling and metabolism. The regulation of epigenetic remodelling maintains the balance between cellular plasticity and phenotype deviation. This preliminary research demonstrated reduced activity of genes responsible for epigenetic modifications of DNA and histones in in vitro expanded epidermal cells. This observation indicates that epigenome re-patterning in cultured epidermal cells is significantly less intensive than in the skin. Also, this observation may imply that after adaptation to in vitro conditions, the epigenome does not undergo extensive transformation during further cultivation.
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Affiliation(s)
- Jolanta Kamińska
- Laboratory for Regenerative Biotechnology, Gdańsk University of Technology, Gdańsk, Poland
| | - Paulina Langa
- Department of Clinical Immunology and Transplantology, Faculty of Medicine, Medical University of Gdańsk, Gdańsk, Poland
| | - Milena Deptuła
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Faculty of Medicine, Medical University of Gdańsk, Gdańsk, Poland
| | - Jacek Zieliński
- Department of Surgical Oncology, Faculty of Medicine, Medical University of Gdańsk, Gdańsk, Poland
| | - Paweł Sachadyn
- Laboratory for Regenerative Biotechnology, Gdańsk University of Technology, Gdańsk, Poland.
| | - Anna Wardowska
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Faculty of Medicine, Medical University of Gdańsk, Gdańsk, Poland
| | - Michał Pikuła
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Faculty of Medicine, Medical University of Gdańsk, Gdańsk, Poland.
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13
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Mieczkowska A, Schumacher A, Filipowicz N, Wardowska A, Zieliński M, Madanecki P, Nowicka E, Langa P, Deptuła M, Zieliński J, Kondej K, Renkielska A, Buckley PG, Crossman DK, Crowley MR, Czupryn A, Mucha P, Sachadyn P, Janus Ł, Skowron P, Rodziewicz-Motowidło S, Cichorek M, Pikuła M, Piotrowski A. Immunophenotyping and transcriptional profiling of in vitro cultured human adipose tissue derived stem cells. Sci Rep 2018; 8:11339. [PMID: 30054533 PMCID: PMC6063933 DOI: 10.1038/s41598-018-29477-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 07/10/2018] [Indexed: 02/07/2023] Open
Abstract
Adipose-derived stem cells (ASCs) have become an important research model in regenerative medicine. However, there are controversies regarding the impact of prolonged cell culture on the ASCs phenotype and their differentiation potential. Hence, we studied 10 clinical ASCs replicates from plastic and oncological surgery patients, in six-passage FBS supplemented cultures. We quantified basic mesenchymal cell surface marker transcripts and the encoded proteins after each passage. In parallel, we investigated the differentiation potential of ASCs into chondrocytes, osteocytes and adipocytes. We further determined the effects of FBS supplementation and subsequent deprivation on the whole transcriptome by comprehensive mRNA and miRNA sequencing. Our results show that ASCs maintain differentiation potential and consistent profile of key mesenchymal markers, with apparent expression of distinct isoforms, in long-term cultures. No significant differences were observed between plastic and oncological surgery cohorts. ASCs in FBS supplemented primary cultures are almost committed to mesenchymal lineages as they express key epithelial-mesenchymal transition genes including early mesenchymal markers. Furthermore, combined mRNA/miRNA expression profiling strongly supports a modulatory role for the miR-30 family in the commitment process to mesenchymal lineages. Finally, we propose improvements to existing qPCR based assays that address alternative isoform expression of mesenchymal markers.
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Affiliation(s)
| | - Adriana Schumacher
- Department of Embryology, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | | | - Anna Wardowska
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Maciej Zieliński
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
| | - Piotr Madanecki
- Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Ewa Nowicka
- Department of Clinical Anatomy, Medical University of Gdansk, Gdansk, Poland
| | - Paulina Langa
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
| | - Milena Deptuła
- Department of Embryology, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Jacek Zieliński
- Department of Surgical Oncology, Medical University of Gdansk, Gdansk, Poland
| | - Karolina Kondej
- Department of Plastic Surgery, Medical University of Gdansk, Gdansk, Poland
| | - Alicja Renkielska
- Department of Plastic Surgery, Medical University of Gdansk, Gdansk, Poland
| | | | - David K Crossman
- Heflin Center for Genomic Sciences, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Michael R Crowley
- Heflin Center for Genomic Sciences, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Artur Czupryn
- Laboratory of Neurobiology, Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology PAS, Warsaw, Poland
| | - Piotr Mucha
- Department of Biochemistry, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Paweł Sachadyn
- Laboratory for Regenerative Biotechnology, Gdansk University of Technology, Gdansk, Poland
| | | | - Piotr Skowron
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | | | - Mirosława Cichorek
- Department of Embryology, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Michał Pikuła
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland.
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland.
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14
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Langa P, Wardowska A, Zieliński J, Podolak-Popinigis J, Sass P, Sosnowski P, Kondej K, Renkielska A, Sachadyn P, Trzonkowski P, Pikuła M. Transcriptional profile of in vitro expanded human epidermal progenitor cells for the treatment of non-healing wounds. J Dermatol Sci 2017; 89:272-281. [PMID: 29287803 DOI: 10.1016/j.jdermsci.2017.12.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 06/08/2017] [Revised: 11/17/2017] [Accepted: 12/11/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND Epidermal progenitor cells (EPCs) have been under extensive investigation due to their increasing potential of application in medicine and biotechnology. Cultured human EPCs are used in the treatment of chronic wounds and have recently became a target for gene therapy and toxicological studies. One of the challenges in EPCs culture is to provide a high number of undifferentiated, progenitor cells displaying high viability and significant biological activity. OBJECTIVES The goal of this study was to characterize the in vitro cultured progenitor cells and to assess whether the cells with the progenitor phenotype are able to enhance wound healing. Additionally, we aimed to establish the complete procedure of the culture, analysis and clinical application of epidermal progenitor cells. METHODS In this study we present a method of cell isolation and culture followed by a technique of transplantation of the cultured cells onto the wound bed. The applied isolation technique involves two enzymatic steps (dispase, trypsin) and it is characterized by a high yield of cells. The obtained cells were cultured in vitro up to the second passage in serum-free and xeno-free keratinocytes-dedicated medium. Key stem cell markers were determined with means of flow cytometry and quantitative real-time PCR. RESULTS The in vitro expanded cells displayed high proliferative activity without features of neither apoptosis nor necrosis. The flow cytometry and transcriptomic analyses showed enhanced expression of stem cell markers (i.e. proteins: ΔNp63, CD29, CD49f and BNC1, CDKN1A transcripts) in the expanded cells. In the presented compassionate use study, cultured autologous cells from an oncological patient were suspended in fibrin sealant and transplanted directly to a non-healing wound, resulting in wound closure within 2 months. CONCLUSION The cells cultured in serum-free media display epidermal stem cells features and a potential to stimulate wound healing. This promising procedure of isolation, culture and application warrants further clinical trials in the treatment of chronic wounds.
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Affiliation(s)
- Paulina Langa
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Poland
| | - Anna Wardowska
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Poland
| | - Jacek Zieliński
- Department of Surgical Oncology, Medical University of Gdansk, Poland
| | - Justyna Podolak-Popinigis
- Department of Molecular Biotechnology & Microbiology, Gdansk University of Technology, Gdansk, Poland
| | - Piotr Sass
- Department of Molecular Biotechnology & Microbiology, Gdansk University of Technology, Gdansk, Poland
| | - Paweł Sosnowski
- Department of Molecular Biotechnology & Microbiology, Gdansk University of Technology, Gdansk, Poland
| | - Karolina Kondej
- Department of Plastic Surgery, Medical University of Gdansk, Poland
| | | | - Paweł Sachadyn
- Department of Molecular Biotechnology & Microbiology, Gdansk University of Technology, Gdansk, Poland
| | - Piotr Trzonkowski
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Poland
| | - Michał Pikuła
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Poland.
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15
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Pikuła M, Zieliński M, Specjalski K, Barańska-Rybak W, Dawgul M, Langa P, Jassem E, Kamysz W, Trzonkowski P. In VitroEvaluation of the Allergic Potential of Antibacterial Peptides: Camel and Citropin. Chem Biol Drug Des 2015; 87:562-8. [DOI: 10.1111/cbdd.12688] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 11/03/2015] [Accepted: 11/05/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Michał Pikuła
- Department of Clinical Immunology and Transplantology; Medical University of Gdańsk; Debinki 7 80-211 Gdańsk Poland
| | - Maciej Zieliński
- Department of Clinical Immunology and Transplantology; Medical University of Gdańsk; Debinki 7 80-211 Gdańsk Poland
| | - Krzysztof Specjalski
- Department of Allergology; Medical University of Gdańsk; Debinki 7 80-211 Gdańsk Poland
| | - Wioletta Barańska-Rybak
- Department of Dermatology, Venereology and Allergology; Medical University of Gdańsk; Debinki 7 80-211 Gdańsk Poland
| | - Małgorzata Dawgul
- Department of Inorganic Chemistry; Medical University of Gdańsk; Al. Hallera 107 80-416 Gdańsk Poland
| | - Paulina Langa
- Department of Clinical Immunology and Transplantology; Medical University of Gdańsk; Debinki 7 80-211 Gdańsk Poland
| | - Ewa Jassem
- Department of Allergology; Medical University of Gdańsk; Debinki 7 80-211 Gdańsk Poland
| | - Wojciech Kamysz
- Department of Inorganic Chemistry; Medical University of Gdańsk; Al. Hallera 107 80-416 Gdańsk Poland
- R&D Laboratory; Lipopharm.pl; Koscielna 16A 83-210 Zblewo Poland
| | - Piotr Trzonkowski
- Department of Clinical Immunology and Transplantology; Medical University of Gdańsk; Debinki 7 80-211 Gdańsk Poland
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Abstract
Wound healing is a complex process which depends on the presence of various types of cells, growth factors, cytokines and the elements of extracellular matrix. A wound is a portal of entry for numerous pathogens, therefore during the evolution wound healing process has formed very early, being critical for the survival of every individual. Stem cells, which give rise to their early descendants progenitor cells and subsequently differentiated cells, play a specific role in the process of wound healing. Among the most important cells which take part in wound healing the following cells need to be distinguished: epidermal stem cells, dermal precursor of fibroblasts, adipose-derived stem cells as well as bone marrow cells. The activity of these cells is strictly regulated by various growth factors, inter alia epidermal growth factor (EGF), fibroblast growth factor (FGF), platelet-derived growth factor (PDGF), transforming growth factor (TGF), vascular endothelial growth factor (VEGF). Any disorders in functioning of stem cells and biological activity of growth factors may lead to the defects in wound healing, for instance delayed wound healing or creation of hypertrophic scars. Therefore, knowledge concerning the mechanisms of wound healing is extremely essential from clinical point of view. In this review the current state of the knowledge of the role of stem cells and growth factors in the process of wound healing has been presented. Moreover, some clinical aspects of wound healing as well as the possibility of the therapy based on stem cells and growth factors have included.
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Affiliation(s)
- Michał Pikuła
- Zakład Immunologii Klinicznej i Transplantologii, Wydział Lekarski, Gdański Uniwersytet Medyczny
| | - Paulina Langa
- Zakład Immunologii Klinicznej i Transplantologii, Wydział Lekarski, Gdański Uniwersytet Medyczny
| | | | - Piotr Trzonkowski
- Zakład Immunologii Klinicznej i Transplantologii, Wydział Lekarski, Gdański Uniwersytet Medyczny
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Gołąb K, Krzystyniak A, Marek-Trzonkowska N, Misawa R, Wang LJ, Wang X, Cochet O, Tibudan M, Langa P, Millis JM, Trzonkowski P, Witkowski P. Impact of culture medium on CD4+ CD25highCD127lo/neg Treg expansion for the purpose of clinical application. Int Immunopharmacol 2013; 16:358-63. [DOI: 10.1016/j.intimp.2013.02.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 02/18/2013] [Indexed: 01/26/2023]
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Derosier C, Leclercq S, Rabardel P, Langa P. Studying work practices: a key factor in understanding accidents on the level triggered by a balance disturbance. Ergonomics 2008; 51:1926-43. [PMID: 19034785 DOI: 10.1080/00140130802567061] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Accidents on the level (AOL) rank second amongst the most numerous and serious occupational accidents with days lost in France and are a major health and safety problem in every sector of activity. The case study described in this paper was conducted at a metallurgical company with 300 employees. The aims of this work were dual: 1) to extend the general knowledge required for preventing these accidents; 2) to propose prevention measures to this company. Existing data on company occupational accidents were gathered and analysed to identify a work situation that appeared likely to cause AOL. This work situation was analysed in detail. Several risk factors were identified within this work situation, by way of interviews with 12 operators. These risk factors concerned various dimensions of the work situation, particularly its physical dimension (e.g. templates structure) and organisational dimension (e.g. parts availability). Interviews were conducted, focusing on risk factors perceived by operators and involving allo-confrontations based on accounts of four AOL occurring in this situation. Allo-confrontations were interviews confronting operators with a risk occupational situation that was accidental for one of their colleagues, the latter being absent from the interview. Results highlighted the fact that the work practices implemented are key factors in understanding these accidents. This study underlines the role of work practices in AOL causality and prevention. It also provides explanations associated with various work situation dimensions involving adoption of more or less safe work practices. AOL are serious and frequent in occupational situations. Injury claims analysis and interviews in an industrial company emphasise the specific characteristics of an occupational situation and of prevention actions forming the basis of an intervention. The need for a better understanding of factors affecting work practice is highlighted in relation to research.
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Affiliation(s)
- C Derosier
- French National Research and Safety Institute (INRS), Working Life Department, Biomechanics and Ergonomics Laboratory, Vandoeuvre, France.
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