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Karpf S, Glöckner Burmeister N, Dubreil L, Ghosh S, Hollandi R, Pichon J, Leroux I, Henkel A, Lutz V, Jurkevičius J, Latshaw A, Kilin V, Kutscher T, Wiggert M, Saavedra-Villanueva O, Vogel A, Huber RA, Horvath P, Rouger K, Bonacina L. Harmonic Imaging of Stem Cells in Whole Blood at GHz Pixel Rate. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401472. [PMID: 38863131 DOI: 10.1002/smll.202401472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 05/21/2024] [Indexed: 06/13/2024]
Abstract
The pre-clinical validation of cell therapies requires monitoring the biodistribution of transplanted cells in tissues of host organisms. Real-time detection of these cells in the circulatory system and identification of their aggregation state is a crucial piece of information, but necessitates deep penetration and fast imaging with high selectivity, subcellular resolution, and high throughput. In this study, multiphoton-based in-flow detection of human stem cells in whole, unfiltered blood is demonstrated in a microfluidic channel. The approach relies on a multiphoton microscope with diffractive scanning in the direction perpendicular to the flow via a rapidly wavelength-swept laser. Stem cells are labeled with metal oxide harmonic nanoparticles. Thanks to their strong and quasi-instantaneous second harmonic generation (SHG), an imaging rate in excess of 10 000 frames per second is achieved with pixel dwell times of 1 ns, a duration shorter than typical fluorescence lifetimes yet compatible with SHG. Through automated cell identification and segmentation, morphological features of each individual detected event are extracted and cell aggregates are distinguished from isolated cells. This combination of high-speed multiphoton microscopy and high-sensitivity SHG nanoparticle labeling in turbid media promises the detection of rare cells in the bloodstream for assessing novel cell-based therapies.
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Affiliation(s)
- Sebastian Karpf
- Institute of Biomedical Optics (BMO), University Of Luebeck, 23562, Luebeck, Germany
| | | | | | - Shayantani Ghosh
- Department of Applied Physics, Université de Genève, Rue de l'Ecole-de-Médecine, 20, Geneva, 1205, Switzerland
| | - Reka Hollandi
- Synthetic and Systems Biology Unit, Biological Research Centre (BRC), Szeged, H-6726, Hungary
| | | | | | - Alessandra Henkel
- Institute of Biomedical Optics (BMO), University Of Luebeck, 23562, Luebeck, Germany
| | - Valerie Lutz
- Institute of Biomedical Optics (BMO), University Of Luebeck, 23562, Luebeck, Germany
| | - Jonas Jurkevičius
- Institute of Biomedical Optics (BMO), University Of Luebeck, 23562, Luebeck, Germany
| | - Alexandra Latshaw
- Department of Applied Physics, Université de Genève, Rue de l'Ecole-de-Médecine, 20, Geneva, 1205, Switzerland
| | - Vasyl Kilin
- Department of Applied Physics, Université de Genève, Rue de l'Ecole-de-Médecine, 20, Geneva, 1205, Switzerland
| | - Tonio Kutscher
- Institute of Biomedical Optics (BMO), University Of Luebeck, 23562, Luebeck, Germany
| | - Moritz Wiggert
- Department of Applied Physics, Université de Genève, Rue de l'Ecole-de-Médecine, 20, Geneva, 1205, Switzerland
| | | | - Alfred Vogel
- Institute of Biomedical Optics (BMO), University Of Luebeck, 23562, Luebeck, Germany
| | - Robert A Huber
- Institute of Biomedical Optics (BMO), University Of Luebeck, 23562, Luebeck, Germany
| | - Peter Horvath
- Synthetic and Systems Biology Unit, Biological Research Centre (BRC), Szeged, H-6726, Hungary
| | - Karl Rouger
- Oniris, INRAE, PAnther, Nantes, F-44307, France
| | - Luigi Bonacina
- Department of Applied Physics, Université de Genève, Rue de l'Ecole-de-Médecine, 20, Geneva, 1205, Switzerland
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Marquis M, Zykwinska A, Novales B, Leroux I, Schleder C, Pichon J, Cuenot S, Rouger K. Human muscle stem cell responses to mechanical stress into tunable 3D alginate matrices. Int J Biol Macromol 2024; 266:130823. [PMID: 38492703 DOI: 10.1016/j.ijbiomac.2024.130823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/20/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
Preclinical data acquired for human muscle stem (hMuStem) cells indicate their great repair capacity in the context of muscle injury. However, their clinical potential is limited by their moderate ability to survive after transplantation. To overcome these limitations, their encapsulation within protective environment would be beneficial. In this study, tunable calcium-alginate hydrogels obtained through molding method using external or internal gelation were investigated as a new strategy for hMuStem cell encapsulation. The mechanical properties of these hydrogels were characterized in their fully hydrated state by compression experiments using Atomic Force Microscopy. Measured elastic moduli strongly depended on the gelation mode and calcium/alginate concentrations. Values ranged from 1 to 12.5 kPa and 3.9 to 25 kPa were obtained for hydrogels prepared following internal and external gelation, respectively. Also, differences in mechanical properties of hydrogels resulted from their internal organization, with an isotropic structure for internal gelation, while external mode led to anisotropic one. It was further shown that viability, morphological and myogenic differentiation characteristics of hMuStem cells incorporated within alginate hydrogels were preserved after their release. These results highlight that hMuStem cells encapsulated in calcium-alginate hydrogels maintain their functionality, thus allowing to develop muscle regeneration protocols to improve their therapeutic efficacy.
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Affiliation(s)
- Mélanie Marquis
- Oniris, INRAE, PAnTher, Physiopathologie Animale et bioThérapie du muscle et du système nerveux, 44307 Nantes, France.
| | - Agata Zykwinska
- Ifremer, MASAE, Microbiologie Aliment Santé Environnement, F-44000 Nantes, France
| | - Bruno Novales
- INRAE, BIA, Biopolymères Interactions Assemblages, 44316 Nantes, France
| | - Isabelle Leroux
- Oniris, INRAE, PAnTher, Physiopathologie Animale et bioThérapie du muscle et du système nerveux, 44307 Nantes, France
| | - Cindy Schleder
- Oniris, INRAE, PAnTher, Physiopathologie Animale et bioThérapie du muscle et du système nerveux, 44307 Nantes, France
| | - Julien Pichon
- Oniris, INRAE, PAnTher, Physiopathologie Animale et bioThérapie du muscle et du système nerveux, 44307 Nantes, France
| | - Stéphane Cuenot
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, 44322 Nantes cedex 3, France
| | - Karl Rouger
- Oniris, INRAE, PAnTher, Physiopathologie Animale et bioThérapie du muscle et du système nerveux, 44307 Nantes, France
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Charrier M, Lorant J, Contreras-Lopez R, Téjédor G, Blanquart C, Lieubeau B, Schleder C, Leroux I, Deshayes S, Fonteneau JF, Babarit C, Hamel A, Magot A, Péréon Y, Viau S, Delorme B, Luz-Crawford P, Lamirault G, Djouad F, Rouger K. Human MuStem cells repress T-cell proliferation and cytotoxicity through both paracrine and contact-dependent pathways. Stem Cell Res Ther 2022; 13:7. [PMID: 35012660 PMCID: PMC8751303 DOI: 10.1186/s13287-021-02681-3] [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: 03/26/2021] [Accepted: 12/09/2021] [Indexed: 11/23/2022] Open
Abstract
Background Muscular dystrophies (MDs) are inherited diseases in which a dysregulation of the immune response exacerbates disease severity and are characterized by infiltration of various immune cell types leading to muscle inflammation, fiber necrosis and fibrosis. Immunosuppressive properties have been attributed to mesenchymal stem cells (MSCs) that regulate the phenotype and function of different immune cells. However, such properties were poorly considered until now for adult stem cells with myogenic potential and advanced as possible therapeutic candidates for MDs. In the present study, we investigated the immunoregulatory potential of human MuStem (hMuStem) cells, for which we previously demonstrated that they can survive in injured muscle and robustly counteract adverse tissue remodeling. Methods The impact of hMuStem cells or their secretome on the proliferative and phenotypic properties of T-cells was explored by co-culture experiments with either peripheral blood mononucleated cells or CD3-sorted T-cells. A comparative study was produced with the bone marrow (BM)-MSCs. The expression profile of immune cell-related markers on hMuStem cells was determined by flow cytometry while their secretory profile was examined by ELISA assays. Finally, the paracrine and cell contact-dependent effects of hMuStem cells on the T-cell-mediated cytotoxic response were analyzed through IFN-γ expression and lysis activity. Results Here, we show that hMuStem cells have an immunosuppressive phenotype and can inhibit the proliferation and the cytotoxic response of T-cells as well as promote the generation of regulatory T-cells through direct contact and via soluble factors. These effects are associated, in part, with the production of mediators including heme-oxygenase-1, leukemia inhibitory factor and intracellular cell adhesion molecule-1, all of which are produced at significantly higher levels by hMuStem cells than BM-MSCs. While the production of prostaglandin E2 is involved in the suppression of T-cell proliferation by both hMuStem cells and BM-MSCs, the participation of inducible nitric oxide synthase activity appears to be specific to hMuStem cell-mediated one. Conclusions Together, our findings demonstrate that hMuStem cells are potent immunoregulatory cells. Combined with their myogenic potential, the attribution of these properties reinforces the positioning of hMuStem cells as candidate therapeutic agents for the treatment of MDs. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-021-02681-3.
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Affiliation(s)
- Marine Charrier
- INRAE, Oniris, PAnTher, UMR 703, Oniris - Site de La Chantrerie, 101, Route de Gachet, CS. 40706, 44307, Nantes, France.,L'institut du Thorax, INSERM, CNRS, UNIV Nantes, 44007, Nantes, France.,Université de Nantes, Nantes, France
| | - Judith Lorant
- INRAE, Oniris, PAnTher, UMR 703, Oniris - Site de La Chantrerie, 101, Route de Gachet, CS. 40706, 44307, Nantes, France
| | - Rafael Contreras-Lopez
- INSERM U1183 IRMB, Hôpital Saint Eloi, CHRU Montpellier, Université de Montpellier, 80, Rue Augustin Fliche, 34295, Montpellier, France.,Laboratorio de Immunología Celular y Molecular, Facultad de Medicina, Universidad de los Andes, Las Condes, Chile
| | - Gautier Téjédor
- INSERM U1183 IRMB, Hôpital Saint Eloi, CHRU Montpellier, Université de Montpellier, 80, Rue Augustin Fliche, 34295, Montpellier, France
| | | | | | - Cindy Schleder
- INRAE, Oniris, PAnTher, UMR 703, Oniris - Site de La Chantrerie, 101, Route de Gachet, CS. 40706, 44307, Nantes, France
| | - Isabelle Leroux
- INRAE, Oniris, PAnTher, UMR 703, Oniris - Site de La Chantrerie, 101, Route de Gachet, CS. 40706, 44307, Nantes, France
| | - Sophie Deshayes
- CNRS, INSERM, CRCINA, Université de Nantes, 44000, Nantes, France
| | | | - Candice Babarit
- INRAE, Oniris, PAnTher, UMR 703, Oniris - Site de La Chantrerie, 101, Route de Gachet, CS. 40706, 44307, Nantes, France
| | - Antoine Hamel
- Service de Chirurgie Infantile, Centre Hospitalier Universitaire (CHU) de Nantes, 44093, Nantes, France
| | - Armelle Magot
- Laboratoire d'Explorations Fonctionnelles, Centre de Référence Maladies Neuromusculaires AOC, CHU Nantes, 44093, Nantes, France
| | - Yann Péréon
- Laboratoire d'Explorations Fonctionnelles, Centre de Référence Maladies Neuromusculaires AOC, CHU Nantes, 44093, Nantes, France
| | - Sabrina Viau
- Biotherapy Division, Macopharma, 59420, Mouvaux, France
| | - Bruno Delorme
- Biotherapy Division, Macopharma, 59420, Mouvaux, France
| | - Patricia Luz-Crawford
- Laboratorio de Immunología Celular y Molecular, Facultad de Medicina, Universidad de los Andes, Las Condes, Chile.,IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
| | | | - Farida Djouad
- INSERM U1183 IRMB, Hôpital Saint Eloi, CHRU Montpellier, Université de Montpellier, 80, Rue Augustin Fliche, 34295, Montpellier, France.
| | - Karl Rouger
- INRAE, Oniris, PAnTher, UMR 703, Oniris - Site de La Chantrerie, 101, Route de Gachet, CS. 40706, 44307, Nantes, France.
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Pichon J, Ledevin M, Larcher T, Jamme F, Rouger K, Dubreil L. Label-free 3D characterization of cardiac fibrosis in muscular dystrophy using SHG imaging of cleared tissue. Biol Cell 2021; 114:91-103. [PMID: 34964145 DOI: 10.1111/boc.202100056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 12/15/2021] [Accepted: 12/20/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND INFORMATION Duchenne muscular dystrophy (DMD) is a neuromuscular disease caused by mutations in the gene encoding dystrophin. It leads to repeated cycles of muscle fiber necrosis and regeneration and progressive replacement of fibers by fibrotic and adipose tissue, with consequent muscle weakness and premature death. Fibrosis and, in particular, collagen accumulation are important pathological features of dystrophic muscle. A better understanding of the development of fibrosis is crucial to enable better management of DMD. Three-dimensional (3D) characterization of collagen organization by second harmonic generation (SHG) microscopy has already proven a highly informative means of studying the fibrotic network in tissue. RESULTS Here, we combine for the first-time tissue clearing with SHG microscopy to characterize in depth the 3D cardiac fibrosis network from DMDmdx rat model. Heart sections (1-mm-thick) from 1-year-old wild-type (WT) and DMDmdx rats were cleared using the CUBIC protocol. SHG microscopy revealed significantly greater collagen deposition in DMDmdx versus WT sections. Analyses revealed a specific pattern of SHG+ segmented objects in DMDmdx cardiac muscle, characterized by a less elongated shape and increased density. Compared with the observed alignment of SHG+ collagen fibers in WT rats, profound fiber disorganization was observed in DMDmdx rats, in which we observed two distinct SHG+ collagen fiber profiles, which may reflect two distinct stages of the fibrotic process in DMD. CONCLUSION AND SIGNIFICANCE The current work highlights the interest to combine multiphoton SHG microscopy and tissue clearing for 3D fibrosis network characterization in label free organ. It could be a relevant tool to characterize the fibrotic tissue remodeling in relation to the disease progression and/or to evaluate the efficacy of therapeutic strategies in preclinical studies in DMD model or others fibrosis-related cardiomyopathies diseases. This article is protected by copyright. All rights reserved.
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Affiliation(s)
| | | | | | - Frédéric Jamme
- Synchrotron SOLEIL, l'Orme des Merisiers, Gif-sur-Yvette, F-91192, France
| | - Karl Rouger
- INRAE, Oniris, PAnTher, Nantes, F-44307, France
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