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Müller D, Donath S, Brückner EG, Biswanath Devadas S, Daniel F, Gentemann L, Zweigerdt R, Heisterkamp A, Kalies SMK. How Localized Z-Disc Damage Affects Force Generation and Gene Expression in Cardiomyocytes. Bioengineering (Basel) 2021; 8:bioengineering8120213. [PMID: 34940366 PMCID: PMC8698600 DOI: 10.3390/bioengineering8120213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/02/2021] [Accepted: 12/09/2021] [Indexed: 11/24/2022] Open
Abstract
The proper function of cardiomyocytes (CMs) is highly related to the Z-disc, which has a pivotal role in orchestrating the sarcomeric cytoskeletal function. To better understand Z-disc related cardiomyopathies, novel models of Z-disc damage have to be developed. Human pluripotent stem cell (hPSC)-derived CMs can serve as an in vitro model to better understand the sarcomeric cytoskeleton. A femtosecond laser system can be applied for localized and defined damage application within cells as single Z-discs can be removed. We have investigated the changes in force generation via traction force microscopy, and in gene expression after Z-disc manipulation in hPSC-derived CMs. We observed a significant weakening of force generation after removal of a Z-disc. However, no significant changes of the number of contractions after manipulation were detected. The stress related gene NF-kB was significantly upregulated. Additionally, α-actinin (ACTN2) and filamin-C (FLNc) were upregulated, pointing to remodeling of the Z-disc and the sarcomeric cytoskeleton. Ultimately, cardiac troponin I (TNNI3) and cardiac muscle troponin T (TNNT2) were significantly downregulated. Our results allow a better understanding of transcriptional coupling of Z-disc damage and the relation of damage to force generation and can therefore finally pave the way to novel therapies of sarcomeric disorders.
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Affiliation(s)
- Dominik Müller
- Institute of Quantum Optics, Leibniz University Hannover, 30167 Hannover, Germany; (D.M.); (S.D.); (E.G.B.); (F.D.); (L.G.); (A.H.)
- REBIRTH Research Center for Translational Regenerative Medicine, Hannover Medical School, 30625 Hannover, Germany; (S.B.D.); (R.Z.)
- Lower Saxony Centre for Biomedical Engineering and Implant Research and Development (NIFE), 30625 Hannover, Germany
| | - Sören Donath
- Institute of Quantum Optics, Leibniz University Hannover, 30167 Hannover, Germany; (D.M.); (S.D.); (E.G.B.); (F.D.); (L.G.); (A.H.)
- Lower Saxony Centre for Biomedical Engineering and Implant Research and Development (NIFE), 30625 Hannover, Germany
| | - Emanuel Georg Brückner
- Institute of Quantum Optics, Leibniz University Hannover, 30167 Hannover, Germany; (D.M.); (S.D.); (E.G.B.); (F.D.); (L.G.); (A.H.)
- Lower Saxony Centre for Biomedical Engineering and Implant Research and Development (NIFE), 30625 Hannover, Germany
| | - Santoshi Biswanath Devadas
- REBIRTH Research Center for Translational Regenerative Medicine, Hannover Medical School, 30625 Hannover, Germany; (S.B.D.); (R.Z.)
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiac, Thoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, 30625 Hannover, Germany
| | - Fiene Daniel
- Institute of Quantum Optics, Leibniz University Hannover, 30167 Hannover, Germany; (D.M.); (S.D.); (E.G.B.); (F.D.); (L.G.); (A.H.)
- Lower Saxony Centre for Biomedical Engineering and Implant Research and Development (NIFE), 30625 Hannover, Germany
| | - Lara Gentemann
- Institute of Quantum Optics, Leibniz University Hannover, 30167 Hannover, Germany; (D.M.); (S.D.); (E.G.B.); (F.D.); (L.G.); (A.H.)
- REBIRTH Research Center for Translational Regenerative Medicine, Hannover Medical School, 30625 Hannover, Germany; (S.B.D.); (R.Z.)
- Lower Saxony Centre for Biomedical Engineering and Implant Research and Development (NIFE), 30625 Hannover, Germany
| | - Robert Zweigerdt
- REBIRTH Research Center for Translational Regenerative Medicine, Hannover Medical School, 30625 Hannover, Germany; (S.B.D.); (R.Z.)
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiac, Thoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, 30625 Hannover, Germany
| | - Alexander Heisterkamp
- Institute of Quantum Optics, Leibniz University Hannover, 30167 Hannover, Germany; (D.M.); (S.D.); (E.G.B.); (F.D.); (L.G.); (A.H.)
- REBIRTH Research Center for Translational Regenerative Medicine, Hannover Medical School, 30625 Hannover, Germany; (S.B.D.); (R.Z.)
- Lower Saxony Centre for Biomedical Engineering and Implant Research and Development (NIFE), 30625 Hannover, Germany
| | - Stefan Michael Klaus Kalies
- Institute of Quantum Optics, Leibniz University Hannover, 30167 Hannover, Germany; (D.M.); (S.D.); (E.G.B.); (F.D.); (L.G.); (A.H.)
- REBIRTH Research Center for Translational Regenerative Medicine, Hannover Medical School, 30625 Hannover, Germany; (S.B.D.); (R.Z.)
- Lower Saxony Centre for Biomedical Engineering and Implant Research and Development (NIFE), 30625 Hannover, Germany
- Correspondence:
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Müller D, Klamt T, Gentemann L, Heisterkamp A, Kalies SMK. Evaluation of laser induced sarcomere micro-damage: Role of damage extent and location in cardiomyocytes. PLoS One 2021; 16:e0252346. [PMID: 34086732 PMCID: PMC8177425 DOI: 10.1371/journal.pone.0252346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 05/12/2021] [Indexed: 11/18/2022] Open
Abstract
Whereas it is evident that a well aligned and regular sarcomeric structure in cardiomyocytes is vital for heart function, considerably less is known about the contribution of individual elements to the mechanics of the entire cell. For instance, it is unclear whether altered Z-disc elements are the reason or the outcome of related cardiomyopathies. Therefore, it is crucial to gain more insight into this cellular organization. This study utilizes femtosecond laser-based nanosurgery to better understand sarcomeres and their repair upon damage. We investigated the influence of the extent and the location of the Z-disc damage. A single, three, five or ten Z-disc ablations were performed in neonatal rat cardiomyocytes. We employed image-based analysis using a self-written software together with different already published algorithms. We observed that cardiomyocyte survival associated with the damage extent, but not with the cell area or the total number of Z-discs per cell. The cell survival is independent of the damage position and can be compensated. However, the sarcomere alignment/orientation is changing over time after ablation. The contraction time is also independent of the extent of damage for the tested parameters. Additionally, we observed shortening rates between 6–7% of the initial sarcomere length in laser treated cardiomyocytes. This rate is an important indicator for force generation in myocytes. In conclusion, femtosecond laser-based nanosurgery together with image-based sarcomere tracking is a powerful tool to better understand the Z-disc complex and its force propagation function and role in cellular mechanisms.
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Affiliation(s)
- Dominik Müller
- Institute of Quantum Optics, Leibniz University Hannover, Hannover, Germany
- REBIRTH Research Center for Translational Regenerative Medicine, Hannover, Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany
- * E-mail:
| | - Thorben Klamt
- Institute of Quantum Optics, Leibniz University Hannover, Hannover, Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany
| | - Lara Gentemann
- Institute of Quantum Optics, Leibniz University Hannover, Hannover, Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany
| | - Alexander Heisterkamp
- Institute of Quantum Optics, Leibniz University Hannover, Hannover, Germany
- REBIRTH Research Center for Translational Regenerative Medicine, Hannover, Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany
| | - Stefan Michael Klaus Kalies
- Institute of Quantum Optics, Leibniz University Hannover, Hannover, Germany
- REBIRTH Research Center for Translational Regenerative Medicine, Hannover, Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany
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Belmouaddine H, Madugundu GS, Wagner JR, Couairon A, Houde D, Sanche L. DNA Base Modifications Mediated by Femtosecond Laser-Induced Cold Low-Density Plasma in Aqueous Solutions. J Phys Chem Lett 2019; 10:2753-2760. [PMID: 31039309 DOI: 10.1021/acs.jpclett.9b00652] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Applications based on near-infrared femtosecond laser-induced plasma in biological materials involve numerous ionization events that inevitably mediate physicochemical effects. Here, the physical chemistry underlying the action of such plasma is characterized in a system of biological interest. We have implemented wavefront shaping techniques to control the generation of laser-induced low electron density plasma channels in DNA aqueous solutions, which minimize the unwanted thermo-mechanical effects associated with plasma of higher density. The number of DNA base modifications per unit of absolute energy deposited by such cold plasma is compared to those induced by either ultraviolet or standard ionizing radiation (γ-rays). Analyses of various photoinduced, oxidative, and reductive DNA base products show that the effects of laser-induced cold plasma are mainly mediated by reactive radical species produced upon the ionization of water, rather than by the direct interaction of the strong laser field with DNA. In the plasma environment, reactions among densely produced primary radicals result in a dramatic decrease in the yields of DNA damages relative to sparse ionizing radiation. This intense radical production also drives the local depletion of oxygen.
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Affiliation(s)
- Hakim Belmouaddine
- Department of Nuclear Medicine and Radiobiology , Faculty of Medicine and Health Sciences, University of Sherbrooke , Sherbrooke , Quebec J1H 5N4 , Canada
| | - Guru S Madugundu
- Department of Nuclear Medicine and Radiobiology , Faculty of Medicine and Health Sciences, University of Sherbrooke , Sherbrooke , Quebec J1H 5N4 , Canada
| | - J Richard Wagner
- Department of Nuclear Medicine and Radiobiology , Faculty of Medicine and Health Sciences, University of Sherbrooke , Sherbrooke , Quebec J1H 5N4 , Canada
| | - Arnaud Couairon
- CPHT, CNRS, Ecole polytechnique, IP Paris , F-91128 Palaiseau , France
| | - Daniel Houde
- Department of Nuclear Medicine and Radiobiology , Faculty of Medicine and Health Sciences, University of Sherbrooke , Sherbrooke , Quebec J1H 5N4 , Canada
| | - Léon Sanche
- Department of Nuclear Medicine and Radiobiology , Faculty of Medicine and Health Sciences, University of Sherbrooke , Sherbrooke , Quebec J1H 5N4 , Canada
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Müller D, Hagenah D, Biswanath S, Coffee M, Kampmann A, Zweigerdt R, Heisterkamp A, Kalies SMK. Femtosecond laser-based nanosurgery reveals the endogenous regeneration of single Z-discs including physiological consequences for cardiomyocytes. Sci Rep 2019; 9:3625. [PMID: 30842507 PMCID: PMC6403391 DOI: 10.1038/s41598-019-40308-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 02/13/2019] [Indexed: 11/24/2022] Open
Abstract
A highly organized cytoskeleton architecture is the basis for continuous and controlled contraction in cardiomyocytes (CMs). Abnormalities in cytoskeletal elements, like the Z-disc, are linked to several diseases. It is challenging to reveal the mechanisms of CM failure, endogenous repair, or mechanical homeostasis on the scale of single cytoskeletal elements. Here, we used a femtosecond (fs) laser to ablate single Z-discs in human pluripotent stem cells (hPSC) -derived CMs (hPSC-CM) and neonatal rat CMs. We show, that CM viability was unaffected by the loss of a single Z-disc. Furthermore, more than 40% of neonatal rat and 68% of hPSC-CMs recovered the Z-disc loss within 24 h. Significant differences to control cells, after the Z-disc loss, in terms of cell perimeter, x- and y-expansion and calcium homeostasis were not found. Only 14 days in vitro old hPSC-CMs reacted with a significant decrease in cell area, x- and y-expansion 24 h past nanosurgery. This demonstrates that CMs can compensate the loss of a single Z-disc and recover a regular sarcomeric pattern during spontaneous contraction. It also highlights the significant potential of fs laser-based nanosurgery to physically micro manipulate CMs to investigate cytoskeletal functions and organization of single elements.
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Affiliation(s)
- Dominik Müller
- Institute of Quantum Optics, Leibniz University Hannover, Hannover, Germany. .,REBIRTH-Cluster of Excellence, Hannover Medical School, Hannover, Germany. .,Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany.
| | - Dorian Hagenah
- Institute of Quantum Optics, Leibniz University Hannover, Hannover, Germany.,REBIRTH-Cluster of Excellence, Hannover Medical School, Hannover, Germany.,Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany
| | - Santoshi Biswanath
- REBIRTH-Cluster of Excellence, Hannover Medical School, Hannover, Germany.,Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiac, Thoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical, School, Hannover, Germany
| | - Michelle Coffee
- REBIRTH-Cluster of Excellence, Hannover Medical School, Hannover, Germany.,Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiac, Thoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical, School, Hannover, Germany
| | - Andreas Kampmann
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany.,Clinic for Cranio-Maxillo-Facial Surgery, Hannover Medical School, Hannover, Germany
| | - Robert Zweigerdt
- REBIRTH-Cluster of Excellence, Hannover Medical School, Hannover, Germany.,Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiac, Thoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical, School, Hannover, Germany
| | - Alexander Heisterkamp
- Institute of Quantum Optics, Leibniz University Hannover, Hannover, Germany.,REBIRTH-Cluster of Excellence, Hannover Medical School, Hannover, Germany.,Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany
| | - Stefan M K Kalies
- Institute of Quantum Optics, Leibniz University Hannover, Hannover, Germany.,REBIRTH-Cluster of Excellence, Hannover Medical School, Hannover, Germany.,Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany
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