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Dias C, Commin L, Bonnefont-Rebeix C, Buff S, Bruyère P, Trombotto S. Comparative Evaluation of the In Vitro Cytotoxicity of a Series of Chitosans and Chitooligosaccharides Water-Soluble at Physiological pH. Polymers (Basel) 2023; 15:3679. [PMID: 37765533 PMCID: PMC10537996 DOI: 10.3390/polym15183679] [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: 08/11/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023] Open
Abstract
Chitosans (CS) have been of great interest due to their properties and numerous applications. However, CS have poor solubility in neutral and basic media, which limits their use in these conditions. In contrast, chitooligosaccharides (COS) have better solubility in water and lower viscosity in aqueous solutions whilst maintaining interesting biological properties. CS and COS, unlike other sugars, are not single polymers with a defined structure but are groups of molecules with modifiable structural parameters, allowing the adaptation and optimization of their properties. The great versatility of CS and COS makes these molecules very attractive for different applications, such as cryopreservation. Here, we investigated the effect of the degree of polymerization (DP), degree of N-acetylation (DA) and concentration of a series of synthesized CS and COS, water-soluble at physiological pH, on their cytotoxicity in an L929 fibroblast cell culture. Our results demonstrated that CS and COS showed no sign of toxicity regarding cell viability at low concentrations (≤10 mg/mL), independently of their DP and DA, whereas a compromising effect on cell viability was observed at a high concentration (100 mg/mL).
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Affiliation(s)
- Catia Dias
- UPSP 2021.A104 ICE, Interaction Cellule Environnement, VetAgro Sup, Université de Lyon, F-69280 Marcy l’Etoile, France; (L.C.); (C.B.-R.); (S.B.); (P.B.)
| | - Loris Commin
- UPSP 2021.A104 ICE, Interaction Cellule Environnement, VetAgro Sup, Université de Lyon, F-69280 Marcy l’Etoile, France; (L.C.); (C.B.-R.); (S.B.); (P.B.)
| | - Catherine Bonnefont-Rebeix
- UPSP 2021.A104 ICE, Interaction Cellule Environnement, VetAgro Sup, Université de Lyon, F-69280 Marcy l’Etoile, France; (L.C.); (C.B.-R.); (S.B.); (P.B.)
| | - Samuel Buff
- UPSP 2021.A104 ICE, Interaction Cellule Environnement, VetAgro Sup, Université de Lyon, F-69280 Marcy l’Etoile, France; (L.C.); (C.B.-R.); (S.B.); (P.B.)
| | - Pierre Bruyère
- UPSP 2021.A104 ICE, Interaction Cellule Environnement, VetAgro Sup, Université de Lyon, F-69280 Marcy l’Etoile, France; (L.C.); (C.B.-R.); (S.B.); (P.B.)
| | - Stéphane Trombotto
- Univ Lyon, CNRS, UMR 5223, Ingénierie des Matériaux Polymères, Université Claude Bernard Lyon 1, INSA Lyon, Université Jean Monnet, F-69622 Villeurbanne, France;
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Marchal-Chaud H, Rieger R, Mai VT, Courtial EJ, Ottenio M, Bonnefont-Rebeix C, Bruyère K, Boulocher C. Contactless mechanical stimulation of tissue engineered constructs: Development and validation of an air-pulse device. Biomaterials Advances 2023; 149:213401. [PMID: 37018914 DOI: 10.1016/j.bioadv.2023.213401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/08/2023] [Accepted: 03/22/2023] [Indexed: 03/28/2023]
Abstract
OBJECTIVE Tissue engineering (TE) is the study and development of biological substitutes to restore, maintain or improve tissue function. Tissue engineered constructs (TECs) still present differences in mechanical and biological properties compared to native tissue. Mechanotransduction is the process through which mechanical stimulation triggers proliferation, apoptosis, and extracellular matrix synthesis, among other cell activities. Regarding that aspect, the effect of in vitro stimulations such as compression, stretching, bending or fluid shear stress loading modalities have been extensively studied. A fluid flow used to produce contactless mechanical stimulation induced by an air pulse could be easily achieved in vivo without altering the tissue integrity. METHODS A new air-pulse device for contactless and controlled mechanical simulation of a TECs was developed and validated in this study conducted in the following three phases: 1) conception of the controlled air-pulse device combined with a 3D printed bioreactor; 2) experimental and numerical mechanical characterization of the air-pulse impact by digital image correlation; and 3) achieving sterility and noncytotoxicity of the air-pulse and of the 3D printed bioreactor using a novel dedicated sterilization process. RESULTS We demonstrated that the treated PLA (polylactic acid) was noncytotoxic and did not influence cell proliferation. An ethanol/autoclaved sterilization protocol for 3D printed objects in PLA has been developed in this study, enabling the use of 3D printing in cell culture. A numerical twin of the device was developed and experimentally characterized by digital image correlation. It showed a coefficient of determination R2 = 0.98 between the numerical and averaged experimental surface displacement profiles of the TEC substitute. CONCLUSION The results of the study assessed the noncytotoxicity of PLA for prototyping by 3D printing the homemade bioreactor. A novel sterilization process for PLA was developed in this study based on a thermochemical process. A numerical twin using fluid-structure interaction method has been developed to investigate the micromechanical effects of air pulses inside the TEC, which cannot all be measured experimentally, for instance, wave propagation generated during the air-pulse impact. The device could be used to study the cell response to contactless cyclic mechanical stimulation, particularly in TEC with fibroblasts, stromal cells and mesenchymal stem cells, which have been shown to be sensitive to the frequency and strain level at the air-liquid interface.
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Khoshnevis M, Brown R, Belluco S, Zahi I, Maciocco L, Bonnefont-Rebeix C, Pillet-Michelland E, Tranel J, Roger T, Nennig C, Oudoire P, Marcon L, Tillement O, Louis C, Gehan H, Bardiès M, Mariani M, Muzio V, Meunier JP, Duchemin C, Michel N, N’Tsiba E, Haddad F, Buronfosse T, Carozzo C, Ponce F. Therapeutic efficacy of 166Holmium siloxane in microbrachytherapy of induced glioblastoma in minipig tumor model. Front Oncol 2022; 12:923679. [DOI: 10.3389/fonc.2022.923679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 09/30/2022] [Indexed: 11/09/2022] Open
Abstract
Glioblastoma is considered the most common malignant primary tumor of central nervous system. In spite of the current standard and multimodal treatment, the prognosis of glioblastoma is poor. For this reason, new therapeutic approaches need to be developed to improve the survival time of the glioblastoma patient. In this study, we performed a preclinical experiment to evaluate therapeutic efficacy of 166Ho microparticle suspension administered by microbrachytherapy on a minipig glioblastoma model. Twelve minipigs were divided in 3 groups. Minipigs had injections into the tumor, containing microparticle suspensions of either 166Ho (group 1; n = 6) or 165Ho (group 2; n = 3) and control group (group 3; n = 3). The survival time from treatment to euthanasia was 66 days with a good state of health of all minipigs in group 1. The median survival time from treatment to tumor related death were 8.6 and 7.3 days in groups 2 and control, respectively. Statistically, the prolonged life of group 1 was significantly different from the two other groups (p < 0.01), and no significant difference was observed between group 2 and control (p=0.09). Our trial on the therapeutic effect of the 166Ho microparticle demonstrated an excellent efficacy in tumor control. The histological and immunohistochemical analysis showed that the efficacy was related to a severe 166Ho induced necrosis combined with an immune response due to the presence of the radioactive microparticles inside the tumors. The absence of reflux following the injections confirms the safety of the injection device.
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Khoshnevis M, Carozzo C, Brown R, Bardiès M, Bonnefont-Rebeix C, Belluco S, Nennig C, Marcon L, Tillement O, Gehan H, Louis C, Zahi I, Buronfosse T, Roger T, Ponce F. Feasibility of intratumoral 165Holmium siloxane delivery to induced U87 glioblastoma in a large animal model, the Yucatan minipig. PLoS One 2020; 15:e0234772. [PMID: 32555746 PMCID: PMC7302492 DOI: 10.1371/journal.pone.0234772] [Citation(s) in RCA: 5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 06/02/2020] [Indexed: 12/30/2022] Open
Abstract
Glioblastoma is the most aggressive primary brain tumor leading to death in most of patients. It comprises almost 50-55% of all gliomas with an incidence rate of 2-3 per 100,000. Despite its rarity, overall mortality of glioblastoma is comparable to the most frequent tumors. The current standard treatment combines surgical resection, radiotherapy and chemotherapy with temozolomide. In spite of this aggressive multimodality protocol, prognosis of glioblastoma is poor and the median survival remains about 12-14.5 months. In this regard, new therapeutic approaches should be developed to improve the life quality and survival time of the patient after the initial diagnosis. Before switching to clinical trials in humans, all innovative therapeutic methods must be studied first on a relevant animal model in preclinical settings. In this regard, we validated the feasibility of intratumoral delivery of a holmium (Ho) microparticle suspension to an induced U87 glioblastoma model. Among the different radioactive beta emitters, 166Ho emits high-energy β(-) radiation and low-energy γ radiation. β(-) radiation is an effective means for tumor destruction and γ rays are well suited for imaging (SPECT) and consequent dosimetry. In addition, the paramagnetic Ho nucleus is a good asset to perform MRI imaging. In this study, five minipigs, implanted with our glioblastoma model were used to test the injectability of 165Ho (stable) using a bespoke injector and needle. The suspension was produced in the form of Ho microparticles and injected inside the tumor by a technique known as microbrachytherapy using a stereotactic system. At the end of this trial, it was found that the 165Ho suspension can be injected successfully inside the tumor with absence or minimal traces of Ho reflux after the injections. This injection technique and the use of the 165Ho suspension needs to be further assessed with radioactive 166Ho in future studies.
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Affiliation(s)
- Mehrdad Khoshnevis
- ICE (Interactions Cellules Environnement), UPSP 2016.A104, VetAgro Sup, University of Lyon1, Marcy l’Etoile, France
| | - Claude Carozzo
- ICE (Interactions Cellules Environnement), UPSP 2016.A104, VetAgro Sup, University of Lyon1, Marcy l’Etoile, France
| | | | | | - Catherine Bonnefont-Rebeix
- ICE (Interactions Cellules Environnement), UPSP 2016.A104, VetAgro Sup, University of Lyon1, Marcy l’Etoile, France
| | - Sara Belluco
- ICE (Interactions Cellules Environnement), UPSP 2016.A104, VetAgro Sup, University of Lyon1, Marcy l’Etoile, France
| | | | - Lionel Marcon
- Institut Lumière Matière, UMR CNRS 5306, UCBL, Campus LyonTech—La Doua, Villeurbanne, France
| | - Olivier Tillement
- Institut Lumière Matière, UMR CNRS 5306, UCBL, Campus LyonTech—La Doua, Villeurbanne, France
| | | | | | - Ilyes Zahi
- Advanced Accelerator Applications, Saint-Genis Pouilly, France
| | - Thierry Buronfosse
- Department of Endocrinology, VetAgro Sup, University of Lyon1, Marcy l’Etoile, France
| | - Thierry Roger
- ICE (Interactions Cellules Environnement), UPSP 2016.A104, VetAgro Sup, University of Lyon1, Marcy l’Etoile, France
| | - Frédérique Ponce
- ICE (Interactions Cellules Environnement), UPSP 2016.A104, VetAgro Sup, University of Lyon1, Marcy l’Etoile, France
- Clinical Oncology Unit, VetAgro Sup, University of Lyon1, Marcy l’Etoile, France
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Khoshnevis M, Carozzo C, Bonnefont-Rebeix C, Belluco S, Leveneur O, Chuzel T, Pillet-Michelland E, Dreyfus M, Roger T, Berger F, Ponce F. Development of induced glioblastoma by implantation of a human xenograft in Yucatan minipig as a large animal model. J Neurosci Methods 2017; 282:61-68. [DOI: 10.1016/j.jneumeth.2017.03.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 03/07/2017] [Indexed: 01/08/2023]
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Bonnefont-Rebeix C, Fournel-Fleury C, Ponce F, Belluco S, Watrelot D, Bouteille SE, Rapiteau S, Razanajaona-Doll D, Pin JJ, Leroux C, Marchal T. Characterization of a novel canine T-cell line established from a spontaneously occurring aggressive T-cell lymphoma with large granular cell morphology. Immunobiology 2016; 221:12-22. [DOI: 10.1016/j.imbio.2015.08.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 06/15/2015] [Accepted: 08/11/2015] [Indexed: 11/17/2022]
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Bonnefont-Rebeix C, Marchal T, Bernaud J, Pin JJ, Leroux C, Lebecque S, Chabanne L, Rigal D. Toll-like receptor 3 (TLR3): A new marker of canine monocytes-derived dendritic cells (cMo-DC). Vet Immunol Immunopathol 2007; 118:134-9. [PMID: 17521746 DOI: 10.1016/j.vetimm.2007.04.008] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2006] [Revised: 03/28/2007] [Accepted: 04/12/2007] [Indexed: 11/28/2022]
Abstract
Toll-like receptors (TLRs) are a family of functionally important receptors for recognition of pathogen-associated molecular pattern (PAMP) since they trigger the pro-inflammatory response and upregulation of costimulatory molecules, linking the rapid innate response to adaptative immunity. In human leukocytes, TLR3 has been found to be specifically expressed in dendritic cells (DC). This study examined the expression of TLR3 in canine monocytes-derived DC (cMo-DC) and PBMC using three new anti-TLR3 mAbs (619F7, 722E2 and 713E4 clones). The non-adherent cMo-DC generated after culture in canine IL-4 plus canine GM-CSF were labelled with the three anti-TLR3 clones by flow cytometry, with a strong expression shown for 619F7 and 722E2 clones. By contrast, TLR3 expression was low to moderate in canine monocytes and lymphocytes. These results were confirmed by Western blot using 619F7 and 722E2 clones and several polypeptide bands were observed, suggesting a possible cleavage of TLR3 molecule or different glycosylation states. In addition, TLR3 was detectable in immunocytochemistry by using 722E2 clone. In conclusion, this first approach to study canine TLR3 protein expression shows that three anti-TLR3 clones detect canine TLR3 and can be used to better characterize canine DC and the immune system of dogs.
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Bonnefont-Rebeix C, de Carvalho CM, Bernaud J, Chabanne L, Marchal T, Rigal D. CD86 molecule is a specific marker for canine monocyte-derived dendritic cells. Vet Immunol Immunopathol 2005; 109:167-76. [PMID: 16202456 DOI: 10.1016/j.vetimm.2005.08.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2004] [Revised: 07/25/2005] [Accepted: 08/11/2005] [Indexed: 10/25/2022]
Abstract
In this study, canine monocyte-derived dendritic cells (cMo-DC) were produced in presence of canine GM-CSF (cGM-CSF) and canine IL-4 (cIL-4), and they were characterized by their dendritic morphology, MLR functionality and phenotype. We noticed that cMo-DC were labelled with three anti-human CD86 (FUN-1, BU63 and IT2.2 clones), whereas resting and activated lymphocytes or monocytes were not stained. CD86 expression was induced by cIL-4 and was up-regulated during the differentiation of the cMo-DC, with a maximum at day 7. Furthermore, cMo-DC were very potent even in low numbers as stimulator cells in allogeneic MLR, and BU63 mAb was able to completely block the cMo-DC-induced proliferation in MLR. We also observed that cMo-DC highly expressed MHC Class II and CD32, but we failed to determine their maturation state since the lack of commercially available canine markers. Moreover, cMo-DC contained cytoplasmic periodic microstructures, potentially new ultrastructural markers of canine DC recently described. In conclusion, this work demonstrates that the CD86 costimulatory marker is now usable for a better characterization of in vitro canine DC.
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Miranda de Carvalho C, Bonnefont-Rebeix C, Rigal D, Chabanne L. "Dendritic cells in different animal species: an overview". ACTA ACUST UNITED AC 2005; 54:85-93. [PMID: 16019158 DOI: 10.1016/j.patbio.2005.04.005] [Citation(s) in RCA: 13] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2005] [Accepted: 04/13/2005] [Indexed: 12/30/2022]
Abstract
The comprehension of the immune system and the role of DC in the pathological diseases may contribute to their use in veterinary medicine in the prevention and treatment of many diseases. Currently, most dendritic cell (DC) research occurs in the human and murine model systems on the generation of cells from the bone marrow or peripheral blood mononuclear cells (PBMC) cultured in vitro. Despite the lack of available immunological reagents such as antibodies and cytokines, analogous cells have been generated and identified in many different species and reviewed in this study.
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Affiliation(s)
- C Miranda de Carvalho
- Etablissement français du sang, 1-3, rue du Vercors, 69007 Lyon, France; Ecole nationale vétérinaire de Lyon, 1, avenue Bourgelat, 69380 Marcy l'Etoile, France.
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de Carvalho CM, Bonnefont-Rebeix C, Picandet S, Bernaud J, Phothirath P, Chabanne L, Marchal T, Magnol JP, Rigal D. Erratum to “Evaluation of elutriation and magnetic microbead purification of canine monocytes” [Vet. Immunol. Immunopathol. 101(2004) 171–178]. Vet Immunol Immunopathol 2005. [DOI: 10.1016/j.vetimm.2004.10.001] [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: 10/26/2022]
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Turinelli V, Marchal T, Ponce F, Bonnefont-Rebeix C, Fournel-Fleury C. Aggressive large granular lymphocyte lymphomas in five dogs: a clinical cytohistological and immunological study. ACTA ACUST UNITED AC 2005. [DOI: 10.1007/s00580-004-0531-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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de Carvalho CM, Bonnefont-Rebeix C, Picandet S, Bernaud J, Phothirath P, Chabanne L, Marchal T, Magnol JP, Rigal D. Evaluation of elutriation and magnetic microbead purification of canine monocytes. Vet Immunol Immunopathol 2004; 101:171-8. [PMID: 15350747 DOI: 10.1016/j.vetimm.2004.04.012] [Citation(s) in RCA: 7] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2003] [Revised: 03/22/2004] [Accepted: 04/07/2004] [Indexed: 11/21/2022]
Abstract
An elutriation technique was developed to obtain large quantities of pure canine monocytes. Firstly, peripheral blood mononuclear cells (PBMC) were isolated from whole blood by Ficoll gradient. Then, the PBMC were separated by an elutriation procedure. We demonstrated that these techniques allow the isolation of canine peripheral blood monocytes with a purity of 64% +/- 7.9 when labelled with anti-CD14 antibody. This purity increased to 83% +/- 2.2 after separation by magnetic anti-CD14 microbeads. The cell viability was more than 95% and apoptotic cells were less than 10%. The monocytes purified by these methods were functionally active in a mixed leukocyte reaction (MLR). A lymphocyte fraction was obtained directly only by elutriation with an average of 79.9% +/- 10.7 of CD5+, 7.9% +/- 3.5 of CD21+ and 1.78% +/- 2.53 of CD14+. Our results indicate that this elutriation procedure is a safe method to purify monocytes as well as lymphocytes, useful in MLR.
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