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Cohen PJR, Luquet E, Pletenka J, Leonard A, Warter E, Gurchenkov B, Carrere J, Rieu C, Hardouin J, Moncaubeig F, Lanero M, Quelennec E, Wurtz H, Jamet E, Demarco M, Banal C, Van Liedekerke P, Nassoy P, Feyeux M, Lefort N, Alessandri K. Engineering 3D micro-compartments for highly efficient and scale-independent expansion of human pluripotent stem cells in bioreactors. Biomaterials 2023; 295:122033. [PMID: 36764194 DOI: 10.1016/j.biomaterials.2023.122033] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 12/12/2022] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
Human pluripotent stem cells (hPSCs) have emerged as the most promising cellular source for cell therapies. To overcome the scale-up limitations of classical 2D culture systems, suspension cultures have been developed to meet the need for large-scale culture in regenerative medicine. Despite constant improvements, current protocols that use microcarriers or generate cell aggregates only achieve moderate amplification performance. Here, guided by reports showing that hPSCs can self-organize in vitro into cysts reminiscent of the epiblast stage in embryo development, we developed a physio-mimetic approach for hPSC culture. We engineered stem cell niche microenvironments inside microfluidics-assisted core-shell microcapsules. We demonstrate that lumenized three-dimensional colonies significantly improve viability and expansion rates while maintaining pluripotency compared to standard hPSC culture platforms such as 2D cultures, microcarriers, and aggregates. By further tuning capsule size and culture conditions, we scale up this method to industrial-scale stirred tank bioreactors and achieve an unprecedented hPSC amplification rate of 277-fold in 6.5 days. In brief, our findings indicate that our 3D culture system offers a suitable strategy both for basic stem cell biology experiments and for clinical applications.
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Affiliation(s)
- Philippe J R Cohen
- Université Paris Cité, Imagine Institute, IPSC Core Facility, INSERM UMR U1163, F-75015, Paris, France; Treefrog Therapeutics, F-33600, Pessac, France.
| | | | | | | | | | | | | | | | | | | | | | - Eddy Quelennec
- Université Paris Cité, Imagine Institute, IPSC Core Facility, INSERM UMR U1163, F-75015, Paris, France; Treefrog Therapeutics, F-33600, Pessac, France
| | | | | | | | - Celine Banal
- Université Paris Cité, Imagine Institute, IPSC Core Facility, INSERM UMR U1163, F-75015, Paris, France
| | - Paul Van Liedekerke
- Inria Paris & Sorbonne Université LJLL, 2 Rue Simone IFF, F-75012, Paris, France
| | - Pierre Nassoy
- LP2N, Laboratoire Photonique Numérique et Nanosciences, Univ. Bordeaux, F-33400, Talence, France; Institut D'Optique Graduate School & CNRS UMR 5298, F-33400, Talence, France
| | | | - Nathalie Lefort
- Université Paris Cité, Imagine Institute, IPSC Core Facility, INSERM UMR U1163, F-75015, Paris, France
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Wang K, Trichet L, Rieu C, Peccate C, Pembouong G, Bouteiller L, Coradin T. Interactions of Organosilanes with Fibrinogen and Their Influence on Muscle Cell Proliferation in 3D Fibrin Hydrogels. Biomacromolecules 2019; 20:3684-3695. [DOI: 10.1021/acs.biomac.9b00686] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kun Wang
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, 75005 Paris, France
| | - Léa Trichet
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, 75005 Paris, France
| | - Clément Rieu
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, 75005 Paris, France
| | - Cécile Peccate
- Sorbonne Université, Inserm UMRS974, Association Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | - Gaëlle Pembouong
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 75005 Paris, France
| | - Laurent Bouteiller
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 75005 Paris, France
| | - Thibaud Coradin
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, 75005 Paris, France
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Rieu C, Parisi C, Mosser G, Haye B, Coradin T, Fernandes FM, Trichet L. Topotactic Fibrillogenesis of Freeze-Cast Microridged Collagen Scaffolds for 3D Cell Culture. ACS Appl Mater Interfaces 2019; 11:14672-14683. [PMID: 30913387 DOI: 10.1021/acsami.9b03219] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Type I collagen is the main component of the extracellular matrix (ECM). In vitro, under a narrow window of physicochemical conditions, type I collagen self-assembles to form complex supramolecular architectures reminiscent of those found in native ECM. Presently, a major challenge in collagen-based biomaterials is to couple the delicate collagen fibrillogenesis events with a controlled shaping process in non-denaturating conditions. In this work, an ice-templating approach promoting the structuration of collagen into macroporous monoliths is used. Instead of common solvent removal procedures, a new topotactic conversion approach yielding self-assembled ordered fibrous materials is implemented. These collagen-only, non-cross-linked scaffolds exhibit uncommon mechanical properties in the wet state, with a Young's modulus of 33 ± 12 kPa, an ultimate tensile stress of 33 ± 6 kPa, and a strain at failure of 105 ± 28%. With the help of the ice-patterned microridge features, normal human dermal fibroblasts and C2C12 murine myoblasts successfully migrate and form highly aligned populations within the resulting three-dimensional (3D) collagen scaffolds. These results open a new pathway to the development of new tissue engineering scaffolds ordered across various organization levels from the molecule to the macropore and are of particular interest for biomedical applications where large-scale 3D cell alignment is needed such as for muscular or nerve reconstruction.
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Affiliation(s)
- Clément Rieu
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, Pierre and Marie Curie Campus , 4 place Jussieu , 75252 Paris Cedex 05 , France
| | - Cleo Parisi
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, Pierre and Marie Curie Campus , 4 place Jussieu , 75252 Paris Cedex 05 , France
| | - Gervaise Mosser
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, Pierre and Marie Curie Campus , 4 place Jussieu , 75252 Paris Cedex 05 , France
| | - Bernard Haye
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, Pierre and Marie Curie Campus , 4 place Jussieu , 75252 Paris Cedex 05 , France
| | - Thibaud Coradin
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, Pierre and Marie Curie Campus , 4 place Jussieu , 75252 Paris Cedex 05 , France
| | - Francisco M Fernandes
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, Pierre and Marie Curie Campus , 4 place Jussieu , 75252 Paris Cedex 05 , France
| | - Léa Trichet
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, Pierre and Marie Curie Campus , 4 place Jussieu , 75252 Paris Cedex 05 , France
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Affiliation(s)
- J Chevreau
- Service de gynécologie-obstétrique, centre hospitalo-universitaire d'Amiens, avenue René-Laennec, 80054 Amiens Cedex 1, France.
| | - C Rieu
- Service d'oto-rhino-laryngologie, centre hospitalo-universitaire d'Amiens, avenue René-Laennec, 80054 Amiens Cedex 1, France
| | - C Page
- Service d'oto-rhino-laryngologie, centre hospitalo-universitaire d'Amiens, avenue René-Laennec, 80054 Amiens Cedex 1, France
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Rieu C, Bertinetti L, Schuetz R, Salinas-Zavala CC, Weaver JC, Fratzl P, Miserez A, Masic A. The role of water on the structure and mechanical properties of a thermoplastic natural block co-polymer from squid sucker ring teeth. Bioinspir Biomim 2016; 11:055003. [PMID: 27588938 DOI: 10.1088/1748-3190/11/5/055003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Hard biological polymers exhibiting a truly thermoplastic behavior that can maintain their structural properties after processing are extremely rare and highly desirable for use in advanced technological applications such as 3D-printing, biodegradable plastics and robust composites. One exception are the thermoplastic proteins that comprise the sucker ring teeth (SRT) of the Humboldt jumbo squid (Dosidicus gigas). In this work, we explore the mechanical properties of reconstituted SRT proteins and demonstrate that the material can be re-shaped by simple processing in water and at relatively low temperature (below 100 °C). The post-processed material maintains a high modulus in the GPa range, both in the dry and the wet states. When transitioning from low to high humidity, the material properties change from brittle to ductile with an increase in plastic deformation, where water acts as a plasticizer. Using synchrotron x-ray scattering tools, we found that water mostly influences nano scale structure, whereas at the molecular level, the protein structure remains largely unaffected. Furthermore, through simultaneous in situ x-ray scattering and mechanical tests, we show that the supramolecular network of the reconstituted SRT material exhibits a progressive alignment along the strain direction, which is attributed to chain alignment of the amorphous domains of SRT proteins. The high modulus in both dry and wet states, combined with their efficient thermal processing characteristics, make the SRT proteins promising substitutes for applications traditionally reserved for petroleum-based thermoplastics.
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Affiliation(s)
- Clément Rieu
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Science Park Golm, Potsdam, Germany
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Cantaert B, Ding D, Rieu C, Petrone L, Hoon S, Kock KH, Miserez A. Stable Formation of Gold Nanoparticles onto Redox-Active Solid Biosubstrates Made of Squid Suckerin Proteins. Macromol Rapid Commun 2015; 36:1877-1883. [DOI: 10.1002/marc.201500218] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 05/29/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Bram Cantaert
- Biological and Biomimetic Materials Laboratory; School of Materials Science and Engineering; Nanyang Technological University; Singapore 637553 Singapore
| | - Dawei Ding
- Biological and Biomimetic Materials Laboratory; School of Materials Science and Engineering; Nanyang Technological University; Singapore 637553 Singapore
| | - Clément Rieu
- Biological and Biomimetic Materials Laboratory; School of Materials Science and Engineering; Nanyang Technological University; Singapore 637553 Singapore
| | - Luigi Petrone
- Biological and Biomimetic Materials Laboratory; School of Materials Science and Engineering; Nanyang Technological University; Singapore 637553 Singapore
| | - Shawn Hoon
- Molecular Engineering Laboratory; Biomedical Sciences Institutes; Agency for Science; Technology and Research (A*Star); Proteos 138673 Singapore
| | - Kian Hong Kock
- Molecular Engineering Laboratory; Biomedical Sciences Institutes; Agency for Science; Technology and Research (A*Star); Proteos 138673 Singapore
| | - Ali Miserez
- Biological and Biomimetic Materials Laboratory; School of Materials Science and Engineering; Nanyang Technological University; Singapore 637553 Singapore
- School of Biological Sciences; Nanyang Technological University; Singapore 637551 Singapore
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Tran L, Rieu C, Gaillard R, Krebs MO, Advenier-Iakovlev E. DI-102 Use of pramipexole in resistant depression: analysis of prescriptions over one year in a psychiatry unit. Eur J Hosp Pharm 2014. [DOI: 10.1136/ejhpharm-2013-000436.273] [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] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Degrassat-Théas A, Bensadon M, Rieu C, Angalakuditi M, Le Pen C, Paubel P. Hospital reimbursement price cap for cancer drugs: the French experience in controlling hospital drug expenditures. Pharmacoeconomics 2012; 30:565-573. [PMID: 22686661 DOI: 10.2165/11588320-000000000-00000] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND In 2005, the French Government implemented a new way of financing high-cost drugs for hospitals in order to promote innovation. Such drugs are gathered on a positive list, established by the Ministry of Health, with a reimbursement price cap. Hospitals still negotiate with pharmaceutical firms, who set their prices freely, and then charge the national health insurance according to their consumption, without budgetary constraints, but on the condition of good use of care. They are not allowed to charge a price higher than this ceiling price, which is called the 'responsibility tariff' (RT). This measure is included in another, larger reform, which concerns hospital financing through allotted amounts at a specific diagnosis-based level. The purpose of this add-on payment on top of the health funds is firstly to avoid heterogeneity in costs per diagnostic-related group and secondly to avoid an uncontrolled increase of prices due to a lack of interest in negotiation from hospitals, as supplementary funding could reduce hospital price sensitivity. OBJECTIVES The aim of this work was to assess the bargaining power of hospitals with the pharmaceutical firms in the monopoly market of innovative cancer drugs since the implementation of this reimbursement price cap. METHODS This study used data from the French Technical Agency of Information on Hospitals (ATIH; Agence Technique de l'Information sur l'Hospitalisation) and included 487 hospitals, which were public and non-profit private. The analysis was conducted on the cancer drugs of the regulated list. An index representing the ratio of the purchase prices to the RT was built from 2004 to 2007 in order to make a 'before-and-after' comparison. RESULTS Results showed a transient price decrease in 2005 before an alignment of patented drugs with regulated prices in the context of a dynamic market with a 22.5% yearly growth rate in value between 2004 and 2007. CONCLUSION Hospitals are able to impose the RT for single-brand drugs. However, they are no longer able to negotiate below the RT except for generic drugs. Negotiations take place upstream for setting the RT between the public authorities and the firms.
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Doyen C, Mighiu D, Kaye K, Colineaux C, Beaumanoir C, Mouraeff Y, Rieu C, Paubel P, Contejean Y. Melatonin in children with autistic spectrum disorders: recent and practical data. Eur Child Adolesc Psychiatry 2011; 20:231-9. [PMID: 21359552 DOI: 10.1007/s00787-011-0162-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2010] [Accepted: 02/03/2011] [Indexed: 01/02/2023]
Abstract
Over the last 20 years, melatonin, a pineal hormone synthesized from serotonin, has been implicated in various studies on the autism spectrum disorder (ASD) and altered melatonin levels were detected in subgroups of subjects with ASD. Its effect on sleep disturbances got the attention of clinicians and several investigations were carried out to determine the usefulness and safety of melatonin administration in this disorder. Hypotheses were also raised regarding the possibility that the dysfunctional synthesis and secretion of melatonin detected in subgroups of subjects with ASD may increase the risk as well the severity of ASD. The purpose of this paper is to review our pharmacokinetic knowledge on melatonin and present results from recent studies on sleep disorders in autism, their treatment with melatonin and the impact of melatonin prescription in children with ASD evaluated in a Diagnostic Center for Autism Spectrum Disorder in Paris, France.
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Affiliation(s)
- C Doyen
- Department of Child and Adolescent Psychopathology, Sainte Anne Hospital, 14 rue Cabanis, Paris, France.
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Deroux A, Rieu C, Bouye C, Santus JP. [Implantable vascular access ports. Use and maintenance]. Soins 1990:49-53. [PMID: 2237543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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