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Mellinger A, Hersant J, Bourreau C, Lecoq S, Deveze E, Clere N, Henni S. Caliper, contrast enhanced-ultrasound or laser speckle contrast imaging: Techniques to follow mice melanoma growth. J Biophotonics 2024; 17:e202300439. [PMID: 38302735 DOI: 10.1002/jbio.202300439] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/17/2024] [Accepted: 01/17/2024] [Indexed: 02/03/2024]
Abstract
Due to morphological characteristics, metastatic melanoma is a cancer for which vascularization is not a diagnostic criterion. Laser speckle contrast imaging (LSCI) and contrast enhanced ultrasound (CEUS) are two imaging techniques that will be explored in this study, which aims to confirm these two techniques for monitoring tumor vascularization. B16F10 cells were xenografted to C57BL/6 mice treated with anti-PD1 or 0.9% NaCl. Tumor volume was measured daily while CEUS and LSCI were performed weekly. LSCI and CEUS analyses showed a decrease in tumor perfusion in both groups of mice. Although both CEUS and LSCI are useful for measuring tumor volume, LSCI appears to be more robust and effective for monitoring tumor microcirculation. Non-invasive investigations are needed to better predict tumor vascularization: CEUS and LSCI have a good applicability in a mice model.
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Affiliation(s)
| | | | - Clara Bourreau
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, Angers, France
| | - Simon Lecoq
- Vascular Medicine, University Hospital, Angers, France
| | - Eva Deveze
- Vascular Surgery, University Hospital, Angers, France
| | - Nicolas Clere
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, Angers, France
| | - Samir Henni
- Vascular Medicine, University Hospital, Angers, France
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Mellinger A, Lubitz LJ, Gazaille C, Leneweit G, Bastiat G, Lépinoux-Chambaud C, Eyer J. The use of liposomes functionalized with the NFL-TBS.40-63 peptide as a targeting agent to cross the in vitro blood-brain barrier and target glioblastoma cells. Int J Pharm 2023; 646:123421. [PMID: 37722495 DOI: 10.1016/j.ijpharm.2023.123421] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 04/15/2023] [Revised: 07/24/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
Glioblastoma is the most common and aggressive brain tumor. Current treatments do not allow to cure the patients. This is partly due to the blood-brain barrier (BBB), which limits the delivery of drugs to the pathological site. To overcome this, we developed liposomes functionalized with a neurofilament-derived peptide, NFL-TBS.40-63 (NFL), known for its highly selective targeting of glioblastoma cells. First, in vitro BBB model was developed to check whether the NFL can also promote barrier crossing in addition to its active targeting capacity. Permeability experiments showed that the NFL peptide was able to cross the BBB. Moreover, when the BBB was in a pathological situation, i.e., an in vitro blood-brain tumor barrier (BBTB), the passage of the NFL peptide was greater while maintaining its glioblastoma targeting capacity. When the NFL peptide was associated to liposomes, it enhanced their ability to be internalized into glioblastoma cells after passage through the BBTB, compared to liposomes without NFL. The cellular uptake of liposomes was limited in the endothelial cell monolayer in comparison to the glioblastoma one. These data indicated that the NFL peptide is a promising cell-penetrating peptide tool when combined with drug delivery systems for the treatment of glioblastoma.
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Affiliation(s)
- Adélie Mellinger
- GlioCure SA, Angers, France; Univ Angers, Inserm, CNRS, MINT, Angers, France.
| | | | | | | | | | | | - Joël Eyer
- Univ Angers, Inserm, CNRS, MINT, Angers, France.
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Gazaille C, Bozzato E, Madadian-Bozorg N, Mellinger A, Sicot M, Farooq U, Saulnier P, Eyer J, Préat V, Bertrand N, Bastiat G. Glioblastoma-targeted, local and sustained drug delivery system based on an unconventional lipid nanocapsule hydrogel. Biomater Adv 2023; 153:213549. [PMID: 37453243 DOI: 10.1016/j.bioadv.2023.213549] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/21/2023] [Accepted: 07/01/2023] [Indexed: 07/18/2023]
Abstract
The objective of this work was to develop an implantable therapeutic hydrogel that will ensure continuity in treatment between surgery and radiochemotherapy for patients with glioblastoma (GBM). A hydrogel of self-associated gemcitabine-loaded lipid nanocapsules (LNC) has shown therapeutic efficacy in vivo in murine GBM resection models. To improve the targeting of GBM cells, the NFL-TBS.40-63 peptide (NFL), was associated with LNC. The LNC-based hydrogels were formulated with the NFL. The peptide was totally and instantaneously adsorbed at the LNC surface, without modifying the hydrogel mechanical properties, and remained adsorbed to the LNC surface after the hydrogel dissolution. In vitro studies on GBM cell lines showed a faster internalization of the LNC and enhanced cytotoxicity, in the presence of NFL. Finally, in vivo studies in the murine GBM resection model proved that the gemcitabine-loaded LNC with adsorbed NFL could target the non-resected GBM cells and significantly delay or even inhibit the apparition of recurrences.
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Affiliation(s)
- Claire Gazaille
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | | | | | - Adélie Mellinger
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - Marion Sicot
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - Umer Farooq
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - Patrick Saulnier
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - Joël Eyer
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | | | - Nicolas Bertrand
- Univ Laval, Faculty of Pharmacy, CHU Quebec Research Center, Québec, QC, Canada
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Lebreton V, Kaeokhamloed N, Vasylaki A, Hilairet G, Mellinger A, Béjaud J, Saulnier P, Lagarce F, Gattacceca F, Legeay S, Roger E. Pharmacokinetics of intact lipid nanocapsules using new quantitative FRET technique. J Control Release 2022; 351:681-691. [DOI: 10.1016/j.jconrel.2022.09.057] [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] [Received: 06/17/2022] [Revised: 09/07/2022] [Accepted: 09/27/2022] [Indexed: 11/15/2022]
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Pautu V, Lepeltier E, Mellinger A, Riou J, Debuigne A, Jérôme C, Clere N, Passirani C. pH-Responsive Lipid Nanocapsules: A Promising Strategy for Improved Resistant Melanoma Cell Internalization. Cancers (Basel) 2021; 13:2028. [PMID: 33922267 PMCID: PMC8122844 DOI: 10.3390/cancers13092028] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 03/12/2021] [Revised: 04/12/2021] [Accepted: 04/16/2021] [Indexed: 12/12/2022] Open
Abstract
Despite significant advances in melanoma therapy, low response rates and multidrug resistance (MDR) have been described, reducing the anticancer efficacy of the administered molecules. Among the causes to explain these resistances, the decreased intratumoral pH is known to potentiate MDR and to reduce the sensitivity to anticancer molecules. Nanomedicines have been widely exploited as the carriers of MDR reversing molecules. Lipid nanocapsules (LNC) are nanoparticles that have already demonstrated their ability to improve cancer treatment. Here, LNC were modified with novel copolymers that combine N-vinylpyrrolidone (NVP) to impart stealth properties and vinyl imidazole (Vim), providing pH-responsive ability to address classical chemoresistance by improving tumor cell entry. These copolymers could be post-inserted at the LNC surface, leading to the property of going from neutral charge under physiological pH to positive charge under acidic conditions. LNC modified with polymer P5 (C18H37-P(NVP21-co-Vim15)) showed in vitro pH-responsive properties characterized by an enhanced cellular uptake under acidic conditions. Moreover, P5 surface modification led to an increased biological effect by protecting the nanocarrier from opsonization by complement activation. These data suggest that pH-sensitive LNC responds to what is expected from a promising nanocarrier to target metastatic melanoma.
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Affiliation(s)
- Vincent Pautu
- Micro & Nanomedecines Translationnelles (MINT), University of Angers, Inserm, The National Center for Scientific Research (CNRS), SFR ICAT, F-49000 Angers, France; (V.P.); (E.L.); (A.M.); (J.R.); (N.C.)
- Center for Education and Research on Macromolecules (CERM), Complex and Entangled Systems from Atoms to Materials Research Unit (CESAM-RU), University of Liège, 4000 Liège, Belgium; (A.D.); (C.J.)
| | - Elise Lepeltier
- Micro & Nanomedecines Translationnelles (MINT), University of Angers, Inserm, The National Center for Scientific Research (CNRS), SFR ICAT, F-49000 Angers, France; (V.P.); (E.L.); (A.M.); (J.R.); (N.C.)
| | - Adélie Mellinger
- Micro & Nanomedecines Translationnelles (MINT), University of Angers, Inserm, The National Center for Scientific Research (CNRS), SFR ICAT, F-49000 Angers, France; (V.P.); (E.L.); (A.M.); (J.R.); (N.C.)
| | - Jérémie Riou
- Micro & Nanomedecines Translationnelles (MINT), University of Angers, Inserm, The National Center for Scientific Research (CNRS), SFR ICAT, F-49000 Angers, France; (V.P.); (E.L.); (A.M.); (J.R.); (N.C.)
| | - Antoine Debuigne
- Center for Education and Research on Macromolecules (CERM), Complex and Entangled Systems from Atoms to Materials Research Unit (CESAM-RU), University of Liège, 4000 Liège, Belgium; (A.D.); (C.J.)
| | - Christine Jérôme
- Center for Education and Research on Macromolecules (CERM), Complex and Entangled Systems from Atoms to Materials Research Unit (CESAM-RU), University of Liège, 4000 Liège, Belgium; (A.D.); (C.J.)
| | - Nicolas Clere
- Micro & Nanomedecines Translationnelles (MINT), University of Angers, Inserm, The National Center for Scientific Research (CNRS), SFR ICAT, F-49000 Angers, France; (V.P.); (E.L.); (A.M.); (J.R.); (N.C.)
| | - Catherine Passirani
- Micro & Nanomedecines Translationnelles (MINT), University of Angers, Inserm, The National Center for Scientific Research (CNRS), SFR ICAT, F-49000 Angers, France; (V.P.); (E.L.); (A.M.); (J.R.); (N.C.)
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Topin-Ruiz S, Mellinger A, Lepeltier E, Bourreau C, Fouillet J, Riou J, Jaouen G, Martin L, Passirani C, Clere N. Corrigendum to "p722 ferrocifen loaded lipid nanocapsules improve survival of murine xenografted-melanoma via a potentiation of apoptosis and an activation of CD8 + T lymphocytes" [Int. J. Pharm. 593 (2021) 120111]. Int J Pharm 2021; 594:120189. [PMID: 33422402 DOI: 10.1016/j.ijpharm.2020.120189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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)
- Solène Topin-Ruiz
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France; Centre Hospitalier Universitaire, Service de Dermatologie, 4 rue Larrey, F-49933 Angers, France
| | - Adélie Mellinger
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | - Elise Lepeltier
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | - Clara Bourreau
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | - Juliette Fouillet
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | - Jérémie Riou
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | - Gérard Jaouen
- PSL, Chimie ParisTech, Paris Cedex 05, France; Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM, UMR 8232), Paris Cedex 05, France
| | - Ludovic Martin
- Centre Hospitalier Universitaire, Service de Dermatologie, 4 rue Larrey, F-49933 Angers, France
| | - Catherine Passirani
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | - Nicolas Clere
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France.
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Topin-Ruiz S, Mellinger A, Lepeltier E, Bourreau C, Fouillet J, Riou J, Jaouen G, Martin L, Passirani C, Clere N. p722 ferrocifen loaded lipid nanocapsules improve survival of murine xenografted-melanoma via a potentiation of apoptosis and an activation of CD8 + T lymphocytes. Int J Pharm 2020; 593:120111. [PMID: 33246045 DOI: 10.1016/j.ijpharm.2020.120111] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 09/08/2020] [Revised: 11/12/2020] [Accepted: 11/19/2020] [Indexed: 01/13/2023]
Abstract
Metastatic melanoma is a malignant tumor with a poor prognosis. Recent new therapeutics improved the survival of patients at a metastatic stage. However, the low response rate to immunotherapy, explained in part by resistance to apoptosis, needs to develop new strategies. The ferrocifen family represents promising bioorganometallic molecules for melanoma treatment since they show potent anticancer properties. The aim of this study is (i) to evaluate the benefits of a strategy involving encapsulated p722 in lipid nanocapsules (LNC) in B16F10 melanoma mice models and (ii) to compare the beneficial effects with an existing therapy such as anti-CTLA4 mAb. Interestingly, LNC-p722 induces a significant decrease of melanoma cell viability. In vivo data shows a significant improvement in the survival rate and a slower tumor growth with p722-loaded LNC in comparison with anti-CTLA4 mAb. Western blots confirm that LNC-p722 potentiates intrinsic apoptotic pathway. Treatment with LNC-p722 significantly activates CD8+ T lymphocytes compared to treatment with anti-CTLA4 mAb. This study uncovers a new therapeutic strategy with encapsulated p722 to prevent B16F10 melanoma growth and to improve survival of treated mice.
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Affiliation(s)
- Solène Topin-Ruiz
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France; Centre Hospitalier Universitaire, service de dermatologie, 4 rue Larrey, F-49933 Angers, France
| | - Adélie Mellinger
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | - Elise Lepeltier
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | - Clara Bourreau
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | - Juliette Fouillet
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | - Jérémie Riou
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | - Gérard Jaouen
- PSL, Chimie ParisTech, Paris Cedex 05, France; Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM, UMR 8232), Paris Cedex 05, France
| | - Ludovic Martin
- Centre Hospitalier Universitaire, service de dermatologie, 4 rue Larrey, F-49933 Angers, France
| | - Catherine Passirani
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | - Nicolas Clere
- MINT, Univ Angers, INSERM, CNRS, IBS-CHU, 4 rue Larrey, F-49933 Angers, France.
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Mellinger A, Vidal CR, Jungen C. Laser‐reduced fluorescence study of the carbon monoxide nd triplet Rydberg series: Experimental results and multichannel quantum defect analysis. J Chem Phys 1996. [DOI: 10.1063/1.471625] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
BACKGROUND Homeless people are at high risk for death from many causes, but age-adjusted death rates for well-defined homeless populations have not been determined. METHODS We identified 6308 homeless persons 15 to 74 years of age who were served by one or both of two agencies for the homeless in Philadelphia between January 1, 1985, and December 31, 1988. Using a data base that contained all deaths in Philadelphia and listings of all Philadelphia residents during the same period, we compared the mortality rate for this homeless population with the rate in the general population of Philadelphia. RESULTS The age-adjusted mortality rate among the homeless was 3.5 times that of Philadelphia's general population (95 percent confidence interval, 2.8 to 4.5). The age-adjusted number of years of potential life lost before the age of 75 years was 3.6 times higher for the homeless people than for the general population (345 vs. 97 years lost per 1000 person-years of observation). Fifty-one of the 96 deaths of homeless persons (53 percent) occurred during the summer months. Mortality rates were higher among the homeless than in the general population for nonwhites, whites, women, and men. Within the homeless cohort, white men and substance abusers had higher mortality rates than other subgroups, but even homeless people not known to be substance abusers had a threefold higher risk of death than members of the general population. Injuries, heart disease, liver disease, poisoning, and ill-defined conditions accounted for 73 percent of all the deaths among the homeless. CONCLUSIONS Homeless adults in Philadelphia have an age-adjusted mortality rate nearly four times that of Philadelphia's general population. White men and substance abusers are at particularly high risk. Matching cohorts of homeless people to death records is a useful way to monitor mortality rates over time, evaluate interventions, and identify subgroups with an increased risk of death.
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Affiliation(s)
- J R Hibbs
- Division of Field Epidemiology, Centers for Disease Control and Prevention, Atlanta
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Larson B, Häusser O, Brash EJ, Chan C, Rahav A, Bennhold C, Delheij PP, Henderson RS, Jennings BK, Mellinger A, Ottewell D, Trudel A, Vetterli MC, Whittal DM, Ram S, Tiator L, Kamalov SS. Asymmetries in elastic scattering of 100 MeV pi + from a polarized 3He target. Phys Rev Lett 1991; 67:3356-3359. [PMID: 10044713 DOI: 10.1103/physrevlett.67.3356] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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