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Godel-Pastre S, Porcel E, Pinna G, Vandamme M, Denis C, Leterrier C, Doris E, Truillet C, Gravel E. Tumor-Targeted Perfluorinated Micelles as Efficient Theranostic Agents Combining Positron Emission Tomography and Radiosensitization. ACS Appl Mater Interfaces 2024; 16:21557-21570. [PMID: 38648555 DOI: 10.1021/acsami.4c00910] [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] [Indexed: 04/25/2024]
Abstract
We report the synthesis of biocompatible perfluorinated micelles designed to improve radiotherapeutic efficacy in a radioresistant tumor environment. In vitro and in vivo behaviors of perfluorinated micelles were assessed at both cellular and tissular levels. The micellar platform offers key advantages as theranostic tool: (i) small size, allowing deep tissue penetration; (ii) oxygen transport to hypoxic tissues; (iii) negligible toxicity in the absence of ionizing radiation; (iv) internalization into cancer cells; (v) potent radiosensitizing effect; and (vi) excellent tumor-targeting properties, as monitored by positron emission tomography. We have demonstrated strong in vitro radiosensitizing effects of the micelle and in vivo tumor targeting, making this nanometric carrier a promising tool for the potentiation of focused radiotherapy.
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Affiliation(s)
- Sophia Godel-Pastre
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France
- Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, Service Hospitalier Frédéric Joliot, 4 place du Général Leclerc, 91401 Orsay, France
| | - Erika Porcel
- Université Paris-Saclay, CNRS,Institut des Sciences Moléculaires d'Orsay, 91401 Orsay, France
| | - Guillaume Pinna
- Plateforme ARN Interférence (PARI), Institut de Radiobiologie Cellulaire et Moléculaire (iRCM), Université Paris-Saclay, CEA, 92260 Fontenay-aux-Roses, France
| | - Marie Vandamme
- Plateforme ARN Interférence (PARI), Institut de Radiobiologie Cellulaire et Moléculaire (iRCM), Université Paris-Saclay, CEA, 92260 Fontenay-aux-Roses, France
| | - Caroline Denis
- Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, Service Hospitalier Frédéric Joliot, 4 place du Général Leclerc, 91401 Orsay, France
| | - Claire Leterrier
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France
| | - Eric Doris
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France
| | - Charles Truillet
- Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, Service Hospitalier Frédéric Joliot, 4 place du Général Leclerc, 91401 Orsay, France
| | - Edmond Gravel
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France
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Selvaraj S, Weerasinghe L. The Role of Nanotechnology in Understanding the Pathophysiology of Traumatic Brain Injury. Cent Nerv Syst Agents Med Chem 2024; 24:CNSAMC-EPUB-139983. [PMID: 38676493 DOI: 10.2174/0118715249291999240418112531] [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: 11/09/2023] [Revised: 03/19/2024] [Accepted: 03/28/2024] [Indexed: 04/29/2024]
Abstract
Recently, traumatic brain injury (TBI) has been a growing disorder due to frequent brain dysfunction. The Glasgow Coma Scale expresses TBI as classified as having mild, moderate, or severe brain effects, according to the effects on the brain. Brain receptors undergo various modifications in their pathology through chemical synaptic pathways, leading to depression, Alzheimer's, and Parkinson's disease. These brain disorders can be controlled using central receptors such as dopamine, glutamate, and γ-aminobutyric acid, which are clearly explained in this review. Furthermore, there are many complications in TBI's clinical trials and diagnostics, leading to insignificant treatment, causing permanent neuro-damage, physical disability, and even death. Bio-screening and conventional molecular-based therapies are inappropriate due to poor preclinical testing and delayed recovery. Hence, modern nanotechnology utilizing nanopulsed laser therapy and advanced nanoparticle insertion will be suitable for TBI's diagnostics and treatment. In recent days, nanotechnology has an important role in TBI control and provides a higher success rate than conventional therapies. This review highlights the pathophysiology of TBI by comprising the drawbacks of conventional techniques and supports suitable modern alternates for treating TBI.
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Affiliation(s)
- Saranya Selvaraj
- Department of Chemistry, Faculty of Applied sciences, University of Sri Jayewardenepura, Gangodawila, Nugegoda, Sri Lanka
| | - Laksiri Weerasinghe
- Department of Chemistry, Faculty of Applied sciences, University of Sri Jayewardenepura, Gangodawila, Nugegoda, Sri Lanka
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3
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Su CC, Zhang ZR, Liu JX, Meng JG, Ma XQ, Mo ZF, Ren JB, Liang ZX, Yang Z, Li CS, Chen LA. Vaporization of perfluorocarbon attenuates sea-water-drowning-induced acute lung injury by deactivating the NLRP3 inflammasomes in canines. Exp Biol Med (Maywood) 2024; 249:10104. [PMID: 38708425 PMCID: PMC11066214 DOI: 10.3389/ebm.2024.10104] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 04/05/2024] [Indexed: 05/07/2024] Open
Abstract
Seawater-drowning-induced acute lung injury (SD-ALI) is a life-threatening disorder characterized by increased alveolar-capillary permeability, an excessive inflammatory response, and refractory hypoxemia. Perfluorocarbons (PFCs) are biocompatible compounds that are chemically and biologically inert and lack toxicity as oxygen carriers, which could reduce lung injury in vitro and in vivo. The aim of our study was to explore whether the vaporization of PFCs could reduce the severity of SD-ALI in canines and investigate the underlying mechanisms. Eighteen beagle dogs were randomly divided into three groups: the seawater drowning (SW), perfluorocarbon (PFC), and control groups. The dogs in the SW group were intratracheally administered seawater to establish the animal model. The dogs in the PFC group were treated with vaporized PFCs. Probe-based confocal laser endomicroscopy (pCLE) was performed at 3 h. The blood gas, volume air index (VAI), pathological changes, and wet-to-dry (W/D) lung tissue ratios were assessed. The expression of heme oxygenase-1 (HO-1), nuclear respiratory factor-1 (NRF1), and NOD-like receptor family pyrin domain containing-3 (NLRP3) inflammasomes was determined by means of quantitative real-time polymerase chain reaction (qRT-PCR) and immunological histological chemistry. The SW group showed higher lung injury scores and W/D ratios, and lower VAI compared to the control group, and treatment with PFCs could reverse the change of lung injury score, W/D ratio and VAI. PFCs deactivated NLRP3 inflammasomes and reduced the release of caspase-1, interleukin-1β (IL-1β), and interleukin-18 (IL-18) by enhancing the expression of HO-1 and NRF1. Our results suggest that the vaporization of PFCs could attenuate SD-ALI by deactivating NLRP3 inflammasomes via the HO-1/NRF1 pathway.
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Affiliation(s)
- Cheng-Cheng Su
- Medical School of Chinese PLA, Beijing, China
- Department of Respiration, The Eight Medical Center of Chinese PLA General Hospital, Beijing, China
- Department of Critical Care and Respiration, Characteristic Medical Center of Chinese People’s Armed Police Force, Tianjin, China
| | - Zhao-Rui Zhang
- Department of Respiration, The Eight Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jin-Xia Liu
- Medical School of Chinese PLA, Beijing, China
- Department of Respiration, The Eight Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Ji-Guang Meng
- Department of Respiration, The Eight Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiu-Qing Ma
- Department of Respiration, The Eight Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Zhen-Fei Mo
- Medical School of Chinese PLA, Beijing, China
- Department of Respiration, The Eight Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jia-Bo Ren
- Medical School of Chinese PLA, Beijing, China
- Department of Respiration, The Eight Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Zhi-Xin Liang
- Department of Respiration, The Eight Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Zhen Yang
- Department of Respiration, The Eight Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Chun-Sun Li
- Department of Respiration, The Eight Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Liang-An Chen
- Department of Respiration, The Eight Medical Center of Chinese PLA General Hospital, Beijing, China
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Krylov NN, Kazhlaev AY, Karpenko IV, Batoev SD. [In searching for perfect blood substitute. Creation and application of perftorane]. Khirurgiia (Mosk) 2024:111-117. [PMID: 38344968 DOI: 10.17116/hirurgia2024021111] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
The article is devoted to historiography of perfluorocarbons, as well as discoverers of perftorane and their discoveries. There would be no national priority in transfusiology without these discoveries. Perftorane is the only one of the world series of perfluorocarbon emulsion drugs that has passed all phases of clinical trials. Perftorane has been used in clinical medicine for 30 years.
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Affiliation(s)
- N N Krylov
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - A Yu Kazhlaev
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - I V Karpenko
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - S D Batoev
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
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Abstract
Ischemia or hypoxia can lead to pathological changes in the metabolism and function of tissues and then lead to various diseases. Timely and effective blood resuscitation or improvement of hypoxia is very important for the treatment of diseases. However, there is a need to develop stable, nontoxic, and immunologically inert oxygen carriers due to limitations such as blood shortages, different blood types, and the risk of transmitting infections. With the development of various technologies, oxygen carriers based on hemoglobin and perfluorocarbon have been widely studied in recent years. This paper reviews the development and application of hemoglobin and perfluorocarbon oxygen carriers. The design of oxygen carriers was analyzed, and their application as blood substitutes or oxygen carriers in various hypoxic diseases was discussed. Finally, the characteristics and future research of ideal oxygen carriers were prospected to provide reference for follow-up research.
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Affiliation(s)
- Qingsong Ye
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center, Medical School of Nanjing University, Nanjing 210093, China
| | - Deyuan Zheng
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center, Medical School of Nanjing University, Nanjing 210093, China
| | - Kaiyuan Chen
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center, Medical School of Nanjing University, Nanjing 210093, China
| | - Jinhui Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center, Medical School of Nanjing University, Nanjing 210093, China
- Jiangsu Key Laboratory for Nano Technology, Nanjing University, 22 Hankou Road, Nanjing 210093, China
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Lutter JC, Batchev AL, Ortiz CJ, Sertage AG, Romero J, Subasinghe SAAS, Pedersen SE, Samee MAH, Pautler RG, Allen MJ. Outersphere Approach to Increasing the Persistance of Oxygen-Sensitive Europium(II)-Containing Contrast Agents for Magnetic Resonance Imaging with Perfluorocarbon Nanoemulsions toward Imaging of Hypoxia. Adv Healthc Mater 2023; 12:e2203209. [PMID: 36906514 PMCID: PMC10440236 DOI: 10.1002/adhm.202203209] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 03/03/2023] [Indexed: 03/13/2023]
Abstract
Radiographic mapping of hypoxia is needed to study a wide range of diseases. Complexes of Eu(II) are a promising class of molecules to fit this need, but they are generally limited by their rapid oxidation rates in vivo. Here, a perfluorocarbon-nanoemulsion perfused with N2 , forms an interface with aqueous layers to hinder oxidation of a new perfluorocarbon-soluble complex of Eu(II). Conversion of the perfluorocarbon solution of Eu(II) into nanoemulsions results in observable differences between reduced and oxidized forms by magnetic resonance imaging both in vitro and in vivo. Oxidation in vivo occurrs over a period of ≈30 min compared to <5 min for a comparable Eu(II)-containing complex without nanoparticle interfaces. These results represent a critical step toward delivery of Eu(II)-containing complexes in vivo for the study of hypoxia.
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Affiliation(s)
- Jacob C Lutter
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA
| | - Andrea L Batchev
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA
| | - Caitlyn J Ortiz
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Alexander G Sertage
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA
| | - Jonathan Romero
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - S A Amali S Subasinghe
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA
| | - Steen E Pedersen
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Md Abul Hassan Samee
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Robia G Pautler
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Matthew J Allen
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA
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Zhang Q, Inagaki NF, Ito T. Recent advances in micro-sized oxygen carriers inspired by red blood cells. Sci Technol Adv Mater 2023; 24:2223050. [PMID: 37363800 PMCID: PMC10288928 DOI: 10.1080/14686996.2023.2223050] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/22/2023] [Accepted: 05/31/2023] [Indexed: 06/28/2023]
Abstract
Supplementing sufficient oxygen to cells is always challenging in biomedical engineering fields such as tissue engineering. Originating from the concept of a 'blood substitute', nano-sized artificial oxygen carriers (AOCs) have been studied for a long time for the optimization of the oxygen supplementation and improvement of hypoxia environments in vitro and in vivo. When circulating in our bodies, micro-sized human red blood cells (hRBCs) feature a high oxygen capacity, a unique biconcave shape, biomechanical and rheological properties, and low frictional surfaces, making them efficient natural oxygen carriers. Inspired by hRBCs, recent studies have focused on evolving different AOCs into microparticles more feasibly able to achieve desired architectures and morphologies and to obtain the corresponding advantages. Recent micro-sized AOCs have been developed into additional categories based on their principal oxygen-carrying or oxygen-releasing materials. Various biomaterials such as lipids, proteins, and polymers have also been used to prepare oxygen carriers owing to their rapid oxygen transfer, high oxygen capacity, excellent colloidal stability, biocompatibility, suitable biodegradability, and long storage. In this review, we concentrated on the fabrication techniques, applied biomaterials, and design considerations of micro-sized AOCs to illustrate the advances in their performances. We also compared certain recent micro-sized AOCs with hRBCs where applicable and appropriate. Furthermore, we discussed existing and potential applications of different types of micro-sized AOCs.
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Affiliation(s)
- Qiming Zhang
- Department of Chemical System Engineering, The University of Tokyo, Tokyo, Japan
| | - Natsuko F. Inagaki
- Center for Disease Biology and Integrative Medicine, The University of Tokyo, Tokyo, Japan
| | - Taichi Ito
- Department of Chemical System Engineering, The University of Tokyo, Tokyo, Japan
- Center for Disease Biology and Integrative Medicine, The University of Tokyo, Tokyo, Japan
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Nguyen MT, Guseva EV, Ataeva AN, Sigan AL, Shibaeva AV, Dmitrieva MV, Burtsev ID, Volodina YL, Radchenko AS, Egorov AE, Kostyukov AA, Melnikov PV, Chkanikov ND, Kuzmin VA, Shtil AA, Markova AA. Perfluorocarbon Nanoemulsions with Fluorous Chlorin-Type Photosensitizers for Antitumor Photodynamic Therapy in Hypoxia. Int J Mol Sci 2023; 24:ijms24097995. [PMID: 37175700 PMCID: PMC10178184 DOI: 10.3390/ijms24097995] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/23/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
The efficacy of photodynamic therapy (PDT) strictly depends on the availability of molecular oxygen to trigger the light-induced generation of reactive species. Fluorocarbons have an increased ability to dissolve oxygen and are attractive tools for gas delivery. We synthesized three fluorous derivatives of chlorin with peripheral polyfluoroalkyl substituents. These compounds were used as precursors for preparing nanoemulsions with perfluorodecalin as an oxygen depot. Therefore, our formulations contained hydrophobic photosensitizers capable of absorbing monochromatic light in the long wavelength region and the oxygen carrier. These modifications did not alter the photosensitizing characteristics of chlorin such as the generation of singlet oxygen, the major cytocidal species in PDT. Emulsions readily entered HCT116 colon carcinoma cells and accumulated largely in mitochondria. Illumination of cells loaded with emulsions rapidly caused peroxidation of lipids and the loss of the plasma membrane integrity (photonecrosis). Most importantly, in PDT settings, emulsions potently sensitized cells cultured under prolonged (8 weeks) hypoxia as well as cells after oxygen depletion with sodium sulfite (acute hypoxia). The photodamaging potency of emulsions in hypoxia was significantly more pronounced compared to emulsion-free counterparts. Considering a negligible dark cytotoxicity, our materials emerge as efficient and biocompatible instruments for PDT-assisted eradication of hypoxic cells.
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Affiliation(s)
- Minh Tuan Nguyen
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygin Street, 119334 Moscow, Russia
| | - Elizaveta V Guseva
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, 119991 Moscow, Russia
| | - Aida N Ataeva
- Department of Faculty Surgery № 1, Pirogov Russian National Research Medical University, 1 Ostrovitianov Street, 117997 Moscow, Russia
| | - Andrey L Sigan
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, 119991 Moscow, Russia
| | - Anna V Shibaeva
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygin Street, 119334 Moscow, Russia
| | - Maria V Dmitrieva
- Blokhin National Medical Research Center of Oncology, 24 Kashirskoe Shosse, 115522 Moscow, Russia
| | - Ivan D Burtsev
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygin Street, 119334 Moscow, Russia
| | - Yulia L Volodina
- Blokhin National Medical Research Center of Oncology, 24 Kashirskoe Shosse, 115522 Moscow, Russia
| | - Alexandra S Radchenko
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygin Street, 119334 Moscow, Russia
| | - Anton E Egorov
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygin Street, 119334 Moscow, Russia
| | - Alexey A Kostyukov
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygin Street, 119334 Moscow, Russia
| | - Pavel V Melnikov
- M.V. Lomonosov Institute of Fine Chemical Technologies, MIREA-Russian Technological University, 86 Vernadsky Avenue, 119571 Moscow, Russia
| | - Nikolai D Chkanikov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, 119991 Moscow, Russia
| | - Vladimir A Kuzmin
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygin Street, 119334 Moscow, Russia
| | - Alexander A Shtil
- Blokhin National Medical Research Center of Oncology, 24 Kashirskoe Shosse, 115522 Moscow, Russia
- Institute of Cyber Intelligence Systems, National Research Nuclear University MEPhI, 31 Kashirskoe Shosse, 115409 Moscow, Russia
| | - Alina A Markova
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygin Street, 119334 Moscow, Russia
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, 119991 Moscow, Russia
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9
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Lan Z, Zou KL, Cui H, Chen H, Zhao YY, Yu GT. PFC@O 2 Targets HIF-1α to Reverse the Immunosuppressive TME in OSCC. J Clin Med 2023; 12:jcm12020560. [PMID: 36675491 PMCID: PMC9862098 DOI: 10.3390/jcm12020560] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/20/2022] [Accepted: 01/08/2023] [Indexed: 01/13/2023] Open
Abstract
As a typical hallmark of solid tumors, hypoxia affects the effects of tumor radiotherapy, chemotherapy, and photodynamic therapy. Therefore, targeting the hypoxic tumor microenvironment (TME) is a promising treatment strategy for cancer therapy. Here, we prepared an Albumin Human Serum (HSA)-coated perfluorocarbon (PFC) carrying oxygen (PFC@O2) to minimize OSCC hypoxia. The results showed that PFC@O2 significantly downregulated the expression of HIF-1α and the number of M2-like macrophages in vitro. Furthermore, PFC@O2 effectively inhibited the growth of oral squamous cell carcinoma (OSCC) and reduced the proportion of negative immunoregulatory cells, including myeloid-derived suppressor cells (MDSCs) and M2-like macrophages of TME in a 4-nitroquinoline N-oxide (4NQO)-induced mouse model. Conversely, the infiltration of CD4+ and CD8+ T cells was significantly increased in TME, suggesting that the anti-tumor immune response was enhanced. However, we also found that hypoxia-relative genes expression was positively correlated with CD68+/CD163+ TAMs in human tissue specimens. In summary, PFC@O2 could effectively inhibit the progression of OSCC by alleviating hypoxia, which provides a practical basis for gas therapy and gas synergistic therapy for OSCC.
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Affiliation(s)
| | | | | | | | - Yu-Yue Zhao
- Correspondence: (Y.-Y.Z.); (G.-T.Y.); Tel.: +86-020-81602614 (Y.-Y.Z. & G.-T.Y.)
| | - Guang-Tao Yu
- Correspondence: (Y.-Y.Z.); (G.-T.Y.); Tel.: +86-020-81602614 (Y.-Y.Z. & G.-T.Y.)
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10
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Framme C, Sachs HG, Wachtlin J, Bechrakis NE, Hoerauf H, Gabel VP. Main Principles of Vitrectomy Using Intraocular Tamponades - A Basic Course in Surgery. Klin Monbl Augenheilkd 2022; 239:1337-1353. [PMID: 36410334 PMCID: PMC9678440 DOI: 10.1055/a-1929-9413] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 07/30/2022] [Indexed: 11/23/2022]
Abstract
This article is intended to clearly present the basic principles for the use of intraocular tamponades in vitreous/retinal surgery in the event of retinal detachment and other pathologies using additional video footage. It examines the various gases, silicone oils and perfluorocarbon liquids with their indications, administration and in particular intraoperative handling including pitfalls and complications. Characteristic animations show the principles of use in surgery in a comprehensible way. The two lead authors dedicate this article to their teacher Prof. Dr. V.-P. Gabel, who in the early 1990s successfully established the first vitrectomy courses for ophthalmologists at Regensburg University Eye Clinic each year. Many colleagues who still work in retinal surgery today first started learning about this segment on these courses. The other coauthors participated under his supervision in annual vitrectomy wet labs run by the German Academy of Ophthalmology.
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Affiliation(s)
- Carsten Framme
- Augenklinik, Medizinische Hochschule Hannover, Deutschland
| | | | - Joachim Wachtlin
- Augenheilkunde, Sankt Gertrauden-Krankenhaus, Berlin, Deutschland
| | | | - Hans Hoerauf
- Augenheilkunde, Universitätsmedizin Göttingen, Deutschland
| | - Veit-Peter Gabel
- Augenheilkunde, Universität Regensburg, Emeritus, München, Deutschland
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11
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Tian K, Elbert SM, Hu XY, Kirschbaum T, Zhang WS, Rominger F, Schröder RR, Mastalerz M. Highly Selective Adsorption of Perfluorinated Greenhouse Gases by Porous Organic Cages. Adv Mater 2022; 34:e2202290. [PMID: 35657163 DOI: 10.1002/adma.202202290] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/18/2022] [Indexed: 06/15/2023]
Abstract
Anthropogenic greenhouse gases contribute to global warming. Among those gases, perfluorocarbons (PFCs) are thousands to tens of thousands of times more harmful to the environment than comparable amounts of carbon dioxide. To date, materials that selectively adsorb perfluorocarbons in favor of other less harmful gases have not been reported. Here, a series of porous organic cage compounds with alkyl-, fluoroalkyl-, and partially fluorinated alkyl groups is presented. Their isomorphic crystalline states allow the study of the structure-property relationship between the degree of fluorination of the alkyl chains and the gas sorption properties for PFCs and their selective uptakes in comparison to other, nonfluorinated gases. By this approach, one compound having superior selectivities of PFCs versus N2 or CO2 under ambient conditions is identified.
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Affiliation(s)
- Ke Tian
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
- Institute for Molecular Systems Engineering and Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 225, 69120, Heidelberg, Germany
| | - Sven M Elbert
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
- Institute for Molecular Systems Engineering and Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 225, 69120, Heidelberg, Germany
| | - Xin-Yue Hu
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Tobias Kirschbaum
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Wen-Shan Zhang
- Institute for Molecular Systems Engineering and Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 225, 69120, Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Rasmus R Schröder
- Institute for Molecular Systems Engineering and Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 225, 69120, Heidelberg, Germany
| | - Michael Mastalerz
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
- Institute for Molecular Systems Engineering and Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 225, 69120, Heidelberg, Germany
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12
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Jackson TW, Scheibly CM, Polera ME, Belcher SM. Rapid Characterization of Human Serum Albumin Binding for Per- and Polyfluoroalkyl Substances Using Differential Scanning Fluorimetry. Environ Sci Technol 2021; 55:12291-12301. [PMID: 34495656 PMCID: PMC8651256 DOI: 10.1021/acs.est.1c01200] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [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] [Indexed: 05/19/2023]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are a diverse class of synthetic chemicals that accumulate in the environment. Many proteins, including the primary human serum transport protein albumin (HSA), bind PFAS. The predictive power of physiologically based pharmacokinetic modeling approaches is currently limited by a lack of experimental data defining albumin-binding properties for most PFAS. A novel thermal denaturation assay was optimized to evaluate changes in the thermal stability of HSA in the presence of increasing concentrations of known ligands and a structurally diverse set of PFAS. Assay performance was initially evaluated for fatty acids and HSA-binding drugs ibuprofen and warfarin. Concentration-response relationships were determined and dissociation constants (Kd) for each compound were calculated using regression analysis of the dose-dependent changes in HSA melting temperature. Estimated Kd values for HSA binding of octanoic acid, decanoic acid, hexadecenoic acid, ibuprofen, and warfarin agreed with established values. The binding affinities for 24 PFAS that included perfluoroalkyl carboxylic acids (C4-C12), perfluoroalkyl sulfonic acids (C4-C8), mono- and polyether perfluoroalkyl ether acids, and polyfluoroalkyl fluorotelomer substances were determined. These results demonstrate the utility of this differential scanning fluorimetry assay as a rapid high-throughput approach for determining the relative protein-binding properties and identification of chemical structures involved in binding for large numbers of structurally diverse PFAS.
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Affiliation(s)
- Thomas W Jackson
- Center for Human Health and The Environment Department of Biological Sciences, North Carolina State University, 127 David Clark Labs Campus, P.O. Box 7617, Raleigh, North Carolina 27695, United States
| | - Chris M Scheibly
- Center for Human Health and The Environment Department of Biological Sciences, North Carolina State University, 127 David Clark Labs Campus, P.O. Box 7617, Raleigh, North Carolina 27695, United States
| | - M E Polera
- Center for Human Health and The Environment Department of Biological Sciences, North Carolina State University, 127 David Clark Labs Campus, P.O. Box 7617, Raleigh, North Carolina 27695, United States
| | - Scott M Belcher
- Center for Human Health and The Environment Department of Biological Sciences, North Carolina State University, 127 David Clark Labs Campus, P.O. Box 7617, Raleigh, North Carolina 27695, United States
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13
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Hu J, Ward JS, Chaumont A, Rissanen K, Vincent JM, Heitz V, Jacquot de Rouville HP. A Bis-Acridinium Macrocycle as Multi-Responsive Receptor and Selective Phase-Transfer Agent of Perylene. Angew Chem Int Ed Engl 2020; 59:23206-23212. [PMID: 32881218 DOI: 10.1002/anie.202009212] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 07/03/2020] [Indexed: 12/27/2022]
Abstract
A bis-acridinium cyclophane incorporating switchable acridinium moieties linked by a 3,5-dipyridylanisole spacer was studied as a multi-responsive host for polycyclic aromatic hydrocarbon guests. Complexation of perylene was shown to be the most effective and was characterized in particular by a charge-transfer band as signal output. Effective catch and release of the guest was triggered by both chemical (proton/hydroxide) and redox stimuli. Moreover, the dicationic host was also easily switched between organic and perfluorocarbon phases for applications related to the enrichment of perylene from a mixture of polycyclic aromatic hydrocarbons.
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Affiliation(s)
- Johnny Hu
- LSAMM, Institut de Chimie de Strasbourg, CNRS UMR 7177, Université de Strasbourg, 4, rue Blaise Pascal, 67000, Strasbourg, France
| | - Jas S Ward
- University of Jyvaskyla, Department of Chemistry, P.O. BOX 35, Survontie 9B, 40014, Jyväskylä, Finland
| | - Alain Chaumont
- Chimie de la Matière Complexe, CNRS UMR 7140, Université de Strasbourg, 4, rue Blaise Pascal, 67000, Strasbourg, France
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, P.O. BOX 35, Survontie 9B, 40014, Jyväskylä, Finland
| | - Jean-Marc Vincent
- Institut des Sciences Moléculaires, CNRS UMR 5255, Université de Bordeaux, 351 cours de la Libération, 33405, Talence, France
| | - Valérie Heitz
- LSAMM, Institut de Chimie de Strasbourg, CNRS UMR 7177, Université de Strasbourg, 4, rue Blaise Pascal, 67000, Strasbourg, France
| | - Henri-Pierre Jacquot de Rouville
- LSAMM, Institut de Chimie de Strasbourg, CNRS UMR 7177, Université de Strasbourg, 4, rue Blaise Pascal, 67000, Strasbourg, France
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14
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Abstract
Perfluorocarbons, saturated carbon chains in which all the hydrogen atoms are replaced with fluorine, form a separate phase from both organic and aqueous solutions. Though perfluorinated compounds are not found in living systems, they can be used to modify biomolecules to confer orthogonal behavior within natural systems, such as improved stability, engineered assembly, and cell-permeability. Perfluorinated groups also provide handles for purification, mass spectrometry, and 19 F NMR studies in complex environments. Herein, we describe how the unique properties of perfluorocarbons have been employed to understand and manipulate biological systems.
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Affiliation(s)
- Margeaux A Miller
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E Young Dr E, Los Angeles, CA, 90095, USA
| | - Ellen M Sletten
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E Young Dr E, Los Angeles, CA, 90095, USA
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15
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de Leon A, Wei P, Bordera F, Wegierak D, McMillen M, Yan D, Hemmingsen C, Kolios MC, Pentzer EB, Exner AA. Pickering Bubbles as Dual-Modality Ultrasound and Photoacoustic Contrast Agents. ACS Appl Mater Interfaces 2020; 12:22308-22317. [PMID: 32307987 PMCID: PMC8985135 DOI: 10.1021/acsami.0c02091] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Microbubbles (MBs) stabilized by particle surfactants (i.e., Pickering bubbles) have better thermodynamic stability compared to MBs stabilized by small molecules as a result of steric hindrance against coalescence, higher diffusion resistance, and higher particle desorption energy. In addition, the use of particles to stabilize MBs that are typically used as an ultrasound (US) contrast agent can also introduce photoacoustic (PA) properties, thus enabling a highly effective dual-modality US and PA contrast agent. Here, we report the use of partially reduced and functionalized graphene oxide as the sole surfactant to stabilize perfluorocarbon gas bubbles in the preparation of a dual-modality US and PA agent, with high contrast in both imaging modes and without the need for small-molecule or polymer additives. This approach offers an increase in loading of the PA agent without destabilization and increased thickness of the MB shell compared to traditional systems, in which the focus is on adding a PA agent to existing MB formulations.
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Affiliation(s)
- Al de Leon
- Department of Radiology, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Peiran Wei
- Department of Chemistry and Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Filip Bordera
- Department of Physics, Ryerson University, Toronto, Ontario M5B 2K3, Canada
| | - Dana Wegierak
- Department of Physics, Ryerson University, Toronto, Ontario M5B 2K3, Canada
| | - Madelyn McMillen
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - David Yan
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Christina Hemmingsen
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Michael C Kolios
- Department of Physics, Ryerson University, Toronto, Ontario M5B 2K3, Canada
| | - Emily B Pentzer
- Department of Chemistry and Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Agata A Exner
- Department of Radiology, Case Western Reserve University, Cleveland, Ohio 44106, United States
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16
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Bouvain P, Temme S, Flögel U. Hot spot 19 F magnetic resonance imaging of inflammation. Wiley Interdiscip Rev Nanomed Nanobiotechnol 2020; 12:e1639. [PMID: 32380579 DOI: 10.1002/wnan.1639] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 03/20/2020] [Accepted: 04/01/2020] [Indexed: 12/11/2022]
Abstract
Among the preclinical molecular imaging approaches, lately fluorine (19 F) magnetic resonance imaging (MRI) has garnered significant scientific interest in the biomedical research community, due to the unique properties of fluorinated materials and the 19 F nucleus. Fluorine is an intrinsically sensitive nucleus for MRI-there is negligible endogenous 19 F in the body and, thus, no background signal which allows the detection of fluorinated materials as "hot spots" by combined 1 H/19 F MRI and renders fluorine-containing molecules as ideal tracers with high specificity. In addition, perfluorocarbons are a family of compounds that exhibit a very high fluorine payload and are biochemically as well as physiologically inert. Perfluorocarbon nanoemulsions (PFCs) are well known to be readily taken up by immunocompetent cells, which can be exploited for the unequivocal identification of inflammatory foci by tracking the recruitment of PFC-loaded immune cells to affected tissues using 1 H/19 F MRI. The required 19 F labeling of immune cells can be accomplished either ex vivo by PFC incubation of isolated endogenous immune cells followed by their re-injection or by intravenous application of PFCs for in situ uptake by circulating immune cells. With both approaches, inflamed tissues can unambiguously be detected via background-free 19 F signals due to trafficking of PFC-loaded immune cells to affected organs. To extend 19 F MRI tracking beyond cells with phagocytic properties, the PFC surface can further be equipped with distinct ligands to generate specificity against epitopes and/or types of immune cells independent of phagocytosis. Recent developments also allow for concurrent detection of different PFCs with distinct spectral signatures allowing the simultaneous visualization of several targets, such as various immune cell subtypes labeled with these PFCs. Since ligands and targets can easily be adapted to a variety of problems, this approach provides a general and versatile platform for inflammation imaging which will strongly extend the frontiers of molecular MRI. This article is categorized under: Diagnostic Tools > in vivo Nanodiagnostics and Imaging Therapeutic Approaches and Drug Discovery > Emerging Technologies Therapeutic Approaches and Drug Discovery > Nanomedicine for Cardiovascular Disease.
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Affiliation(s)
- Pascal Bouvain
- Experimental Cardiovascular Imaging, Molecular Cardiology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Sebastian Temme
- Experimental Cardiovascular Imaging, Molecular Cardiology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Ulrich Flögel
- Experimental Cardiovascular Imaging, Molecular Cardiology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
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17
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Lambert E, Gorantla VS, Janjic JM. Pharmaceutical design and development of perfluorocarbon nanocolloids for oxygen delivery in regenerative medicine. Nanomedicine (Lond) 2019; 14:2697-2712. [PMID: 31657273 DOI: 10.2217/nnm-2019-0260] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Perfluorocarbons (PFCs) have been investigated as oxygen carriers for several decades in varied biomedical applications. PFCs are chemically and biologically inert, temperature and storage stable, pose low to no infectious risk, can be commercially manufactured, and have well established gas transport properties. In this review, we highlight design and development strategies for their successful application in regenerative medicine, transplantation and organ preservation. Effective tissue preservation strategies are key to improving outcomes of extremity salvage and organ transplantation. Maintaining tissue integrity requires adequate oxygenation to support aerobic metabolism. The use of whole blood for oxygen delivery is fraught with limitations of poor shelf stability, infectious risk, religious exclusions and product shortages. Other agents also face clinical challenges in their implementation. As a solution, we discuss new ways of designing and developing PFC-based artificial oxygen carriers by implementing modern pharmaceutical quality by design and scale up manufacturing methodologies.
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Affiliation(s)
- Eric Lambert
- Graduate School of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, PA 15282, USA.,Chronic Pain Research Consortium, Duquesne University, Pittsburgh, PA 15282, USA
| | - Vijay S Gorantla
- Department of Surgery, Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC 27101, USA.,AIRMED Program, 59th Medical Wing, United States Air Force, United States Army Institute of Surgical Research, San Antonio, TX 78234, USA
| | - Jelena M Janjic
- Graduate School of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, PA 15282, USA.,Chronic Pain Research Consortium, Duquesne University, Pittsburgh, PA 15282, USA.,AIRMED Program, 59th Medical Wing, United States Air Force, United States Army Institute of Surgical Research, San Antonio, TX 78234, USA
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18
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Romano MR, Ferrara M, Gatto C, Ferrari B, Giurgola L, D'Amato Tóthová J. Evaluation of Cytotoxicity of Perfluorocarbons for Intraocular Use by Cytotoxicity Test In Vitro in Cell Lines and Human Donor Retina Ex Vivo. Transl Vis Sci Technol 2019; 8:24. [PMID: 31637104 PMCID: PMC6798311 DOI: 10.1167/tvst.8.5.24] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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: 12/15/2018] [Accepted: 08/15/2019] [Indexed: 11/25/2022] Open
Abstract
Purpose To validate the cytotoxicity test of perfluorocarbon liquids (PFCLs) for intraocular use according to the ISO 10993-5 standard. Methods BALB/3T3, ARPE-19 cell lines, and 3-mm human retina ex vivo samples were cultured in 96-well plates. Contact areas of 22%, 59%, and 83% and 2.5-, 12-, and 24-hour contact times were tested in cell lines. Cell viability was quantified by 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay in ARPE-19 and neutral red uptake (NRU) viability assay for BALB/3T3. Apoptosis was evaluated by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay in ARPE-19 cells. 1-H perfluorooctane (1H PFO) and purified perfluorooctane (PFO) were used as cytotoxic and not cytotoxic controls, respectively. Cell viability was assessed by MTT assay in retina ex vivo samples. Results Qualitative evaluation showed that cytotoxic control induced apoptosis, severe reactivity zones, and cytotoxicity according to ISO 10993-5 in all tested conditions. Quantitative evaluation of 1H PFO showed no cytotoxicity according to ISO 10993-5 on 22% areas, whereas cytotoxicity was detected on 59%, and 83% contact areas. The PFO was confirmed not to be cytotoxic in all tested conditions. Quantitative evaluation in retina ex vivo samples confirmed no cytotoxicity with PFO and cytotoxicity with 1H PFO. Conclusions The direct contact cytotoxicity test according to ISO 10993-5 is a suitable method to detect the cytotoxicity of PFCLs and was validated using quantitative and qualitative approaches in ARPE-19 and BALB/3T3 cells covering 59% of the cell surface areas for 24 hours. Translational Relevance Direct contact cytotoxicity test using specific conditions was validated, whereas different test conditions could not be validated.
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Affiliation(s)
- Mario R Romano
- Department of Biomedical Sciences, Humanitas University, Milano, Italy.,Eye Center, Humanitas Gavazzeni, Bergamo, Italy
| | | | - Claudio Gatto
- Alchilife Srl, Research and Development, Ponte San Nicolò (PD), Italy
| | - Barbara Ferrari
- Fondazione Banca degli Occhi del Veneto (FBOV), Zelarino Venezia, Italy
| | - Laura Giurgola
- Alchilife Srl, Research and Development, Ponte San Nicolò (PD), Italy
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19
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Lambert E, Janjic JM. Multiple linear regression applied to predicting droplet size of complex perfluorocarbon nanoemulsions for biomedical applications. Pharm Dev Technol 2019; 24:700-710. [PMID: 30724654 PMCID: PMC10182475 DOI: 10.1080/10837450.2019.1578372] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 12/21/2018] [Accepted: 01/24/2019] [Indexed: 10/27/2022]
Abstract
Multiple linear regression (MLR) modeling as a novel methodological advancement for design, development, and optimization of perfluorocarbon nanoemulsions (PFC NEs) is presented. The goal of the presented work is to develop MLR methods applicable to design, development, and optimization of PFC NEs in broad range of biomedical uses. Depending on the intended use of PFC NEs as either therapeutics or diagnostics, NE composition differs in respect to specific applications (e.g. magnetic resonance imaging, drug delivery, etc). PFC NE composition can significantly impact on PFC NE droplet size which impacts the NE performance and quality. We demonstrated earlier that microfluidization combined with sonication produces stable emulsions with high level of reproducibility. The goal of the presented work was to establish correlation between droplet size and composition in complex PFC-in-oil-in-water NEs while manufacturing process parameters are kept constant. Under these conditions, we demonstrate that MLR model can predict droplet size based on formulation variables such as amount and type of PFC oil and hydrocarbon oil. To the best of our knowledge, this is the first report where PFC NE composition was directly related to its colloidal properties and MLR used to predict colloidal properties from composition variables.
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Affiliation(s)
- Eric Lambert
- a Graduate School of Pharmaceutical Sciences , Duquesne University , Pittsburgh , PA , USA
| | - Jelena M Janjic
- a Graduate School of Pharmaceutical Sciences , Duquesne University , Pittsburgh , PA , USA
- b Chronic Pain Research Consortium , Duquesne University , Pittsburgh , PA , USA
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20
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Nienhaus F, Colley D, Jahn A, Pfeiler S, Flocke V, Temme S, Kelm M, Gerdes N, Flögel U, Bönner F. Phagocytosis of a PFOB-Nanoemulsion for 19F Magnetic Resonance Imaging: First Results in Monocytes of Patients with Stable Coronary Artery Disease and ST-Elevation Myocardial Infarction. Molecules 2019; 24:E2058. [PMID: 31151162 DOI: 10.3390/molecules24112058] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 05/24/2019] [Accepted: 05/28/2019] [Indexed: 11/16/2022] Open
Abstract
Fluorine-19 magnetic resonance imaging (19F MRI) with intravenously applied perfluorooctyl bromide-nanoemulsions (PFOB-NE) has proven its feasibility to visualize inflammatory processes in experimental disease models. This approach is based on the properties of monocytes/macrophages to ingest PFOB-NE particles enabling specific cell tracking in vivo. However, information on safety (cellular function and viability), mechanism of ingestion and impact of specific disease environment on PFOB-NE uptake is lacking. This information is, however, crucial for the interpretation of 19F MRI signals and a possible translation to clinical application. To address these issues, whole blood samples were collected from patients with acute ST-elevation myocardial infarction (STEMI), stable coronary artery disease (SCAD) and healthy volunteers. Samples were exposed to fluorescently-labeled PFOB-NE and particle uptake, cell viability and migration activity was evaluated by flow cytometry and MRI. We were able to show that PFOB-NE is ingested by human monocytes in a time- and subset-dependent manner via active phagocytosis. Monocyte function (migration, phagocytosis) and viability was maintained after PFOB-NE uptake. Monocytes of STEMI and SCAD patients did not differ in their maximal PFOB-NE uptake compared to healthy controls. In sum, our study provides further evidence for a safe translation of PFOB-NE for imaging purposes in humans.
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21
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Koshkina O, Lajoinie G, Bombelli FB, Swider E, Cruz LJ, White PB, Schweins R, Dolen Y, van Dinther EAW, van Riessen NK, Rogers SE, Fokkink R, Voets IK, van Eck ERH, Heerschap A, Versluis M, de Korte CL, Figdor CG, de Vries IJM, Srinivas M. Multicore Liquid Perfluorocarbon-Loaded Multimodal Nanoparticles for Stable Ultrasound and 19F MRI Applied to In Vivo Cell Tracking. Adv Funct Mater 2019; 29:1806485. [PMID: 32132881 PMCID: PMC7056356 DOI: 10.1002/adfm.201806485] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Indexed: 05/22/2023]
Abstract
Ultrasound is the most commonly used clinical imaging modality. However, in applications requiring cell-labeling, the large size and short active lifetime of ultrasound contrast agents limit their longitudinal use. Here, 100 nm radius, clinically applicable, polymeric nanoparticles containing a liquid perfluorocarbon, which enhance ultrasound contrast during repeated ultrasound imaging over the course of at least 48 h, are described. The perfluorocarbon enables monitoring the nanoparticles with quantitative 19F magnetic resonance imaging, making these particles effective multimodal imaging agents. Unlike typical core-shell perfluorocarbon-based ultrasound contrast agents, these nanoparticles have an atypical fractal internal structure. The nonvaporizing highly hydrophobic perfluorocarbon forms multiple cores within the polymeric matrix and is, surprisingly, hydrated with water, as determined from small-angle neutron scattering and nuclear magnetic resonance spectroscopy. Finally, the nanoparticles are used to image therapeutic dendritic cells with ultrasound in vivo, as well as with 19F MRI and fluorescence imaging, demonstrating their potential for long-term in vivo multimodal imaging.
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Affiliation(s)
- Olga Koshkina
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences (RIMLS), Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands; Physical Chemistry of Polymers, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Guillaume Lajoinie
- Physics of Fluids Group, Technical Medical (TechMed) Centre and MESA+ Institute for, Nanotechnology, University of Twente, Drienerlolaan 5, 7522 NB, Enschede, The Netherlands
| | - Francesca Baldelli Bombelli
- Laboratory of Supramolecular and BioNano Materials, (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering, "Giulio Natta,", Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy
| | - Edyta Swider
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences (RIMLS), Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands
| | - Luis J Cruz
- Translational Nanobiomaterials and Imaging, Department of Radiology, Leiden University Medical Centre, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
| | - Paul B White
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Ralf Schweins
- Institut Laue - Langevin, DS/LSS, 71 Avenue des Martyrs, CS 20 156, 38042 Grenoble CEDEX 9, France
| | - Yusuf Dolen
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences (RIMLS), Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands
| | - Eric A W van Dinther
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences (RIMLS), Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands
| | - N Koen van Riessen
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences (RIMLS), Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands
| | - Sarah E Rogers
- ISIS Pulsed Neutron and Muon Source, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Harwell, Oxford OX11 0QX, UK
| | - Remco Fokkink
- Department of Agrotechnology and Food Sciences, Physical Chemistry and Soft Matter, Wageningen University, 6708 WE, Wageningen, Netherlands
| | - Ilja K Voets
- Laboratory of Self-Organizing Soft Matter, Laboratory of Macromolecular and Organic Chemistry, Department of Chemical Engineering and Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology, De Rondom 70, 5612 AP, Eindhoven, The Netherlands
| | - Ernst R H van Eck
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Arend Heerschap
- Department of Radiology and Nuclear Medicine, Radboudumc, Geert Grooteplein Zuid 10, 6525 GA, Nijmegen, The Netherlands
| | - Michel Versluis
- Physics of Fluids Group, Technical Medical (TechMed) Centre and MESA+ Institute for, Nanotechnology, University of Twente, Drienerlolaan 5, 7522 NB, Enschede, The Netherlands
| | - Chris L de Korte
- Physics of Fluids Group, Technical Medical (TechMed) Centre and MESA+ Institute for, Nanotechnology, University of Twente, Drienerlolaan 5, 7522 NB, Enschede, The Netherlands; Department of Radiology and Nuclear Medicine, Radboudumc, Geert Grooteplein Zuid 10, 6525 GA, Nijmegen, The Netherlands
| | - Carl G Figdor
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences (RIMLS), Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands
| | - I Jolanda M de Vries
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences (RIMLS), Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands
| | - Mangala Srinivas
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences (RIMLS), Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands
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22
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Temme S, Baran P, Bouvain P, Grapentin C, Krämer W, Knebel B, Al-Hasani H, Moll JM, Floss D, Schrader J, Schubert R, Flögel U, Scheller J. Synthetic Cargo Internalization Receptor System for Nanoparticle Tracking of Individual Cell Populations by Fluorine Magnetic Resonance Imaging. ACS Nano 2018; 12:11178-11192. [PMID: 30372619 DOI: 10.1021/acsnano.8b05698] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 06/08/2023]
Abstract
Specific detection of target structures or cells lacking particular surface epitopes still poses a serious problem for all imaging modalities. Here, we demonstrate the capability of synthetic "cargo internalization receptors" (CIRs) for tracking of individual cell populations by 1H/19F magnetic resonance imaging (MRI). To this end, a nanobody for green fluorescent protein (GFP) was used to engineer cell-surface-expressed CIRs which undergo rapid internalization after GFP binding. For 19F MR visibility, the GFP carrier was equipped with "contrast cargo", in that GFP was coupled to perfluorocarbon nanoemulsions (PFCs). To explore the suitability of different uptake mechanisms for this approach, CIRs were constructed by combination of the GFP nanobody and three different cytoplasmic tails that contained individual internalization motifs for endocytosis of the contrast cargo (CIR1-3). Exposure of CIR+ cells to GFP-PFCs resulted in highly specific binding and internalization as confirmed by fluorescence microscopy as well as flow cytometry and enabled visualization by 1H/19F MRI. In particular, expression of CIR2/3 resulted in substantial incorporation of 19F cargo and readily enabled in vivo visualization of GFP-PFC recruitment to transplanted CIR+ cells by 1H/19F MRI in mice. Competition experiments with blood immune cells revealed that CIR+ cells are predominantly loaded with GFP-PFCs even in the presence of cells with strong phagocytotic capacity. Importantly, binding and internalization of GFP-PFCs did not result in the activation of signaling cascades and therefore does not alter cell physiology. Overall, this approach represents a versatile in vivo imaging platform for tracking of individual cell populations by making use of cell-type-specific CIR+ mice.
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Affiliation(s)
- Sebastian Temme
- Experimental Cardiovascular Imaging, Molecular Cardiology , Heinrich Heine University Düsseldorf , 40225 Düsseldorf , Germany
| | - Paul Baran
- Institute for Biochemistry and Molecular Biology II, Medical Faculty , Heinrich Heine University Düsseldorf , 40225 Düsseldorf , Germany
| | - Pascal Bouvain
- Experimental Cardiovascular Imaging, Molecular Cardiology , Heinrich Heine University Düsseldorf , 40225 Düsseldorf , Germany
| | - Christoph Grapentin
- Department of Pharmaceutical Technology and Biopharmacy , Albert Ludwig University Freiburg , 79104 Freiburg im Breisgau , Germany
| | - Wolfgang Krämer
- Department of Pharmaceutical Technology and Biopharmacy , Albert Ludwig University Freiburg , 79104 Freiburg im Breisgau , Germany
| | - Birgit Knebel
- Institute for Clinical Biochemistry and Pathobiochemistry, German Diabetes Center , Leibniz Center for Diabetes Research at the Heinrich Heine University Düsseldorf , 40225 Düsseldorf , Germany
| | - Hadi Al-Hasani
- Institute for Clinical Biochemistry and Pathobiochemistry, German Diabetes Center , Leibniz Center for Diabetes Research at the Heinrich Heine University Düsseldorf , 40225 Düsseldorf , Germany
| | - Jens Mark Moll
- Institute for Biochemistry and Molecular Biology II, Medical Faculty , Heinrich Heine University Düsseldorf , 40225 Düsseldorf , Germany
| | - Doreen Floss
- Institute for Biochemistry and Molecular Biology II, Medical Faculty , Heinrich Heine University Düsseldorf , 40225 Düsseldorf , Germany
| | - Jürgen Schrader
- Experimental Cardiovascular Imaging, Molecular Cardiology , Heinrich Heine University Düsseldorf , 40225 Düsseldorf , Germany
| | - Rolf Schubert
- Department of Pharmaceutical Technology and Biopharmacy , Albert Ludwig University Freiburg , 79104 Freiburg im Breisgau , Germany
| | - Ulrich Flögel
- Experimental Cardiovascular Imaging, Molecular Cardiology , Heinrich Heine University Düsseldorf , 40225 Düsseldorf , Germany
| | - Jürgen Scheller
- Institute for Biochemistry and Molecular Biology II, Medical Faculty , Heinrich Heine University Düsseldorf , 40225 Düsseldorf , Germany
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Aramendia I, Fernandez-Gamiz U, Lopez-Arraiza A, Rey-Santano C, Mielgo V, Basterretxea FJ, Sancho J, Gomez-Solaetxe MA. Experimental and Numerical Modeling of Aerosol Delivery for Preterm Infants. Int J Environ Res Public Health 2018; 15:E423. [PMID: 29495619 DOI: 10.3390/ijerph15030423] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 02/12/2018] [Accepted: 02/23/2018] [Indexed: 12/27/2022]
Abstract
Respiratory distress syndrome (RDS) represents one of the major causes of mortality among preterm infants, and the best approach to treat it is an open research issue. The use of perfluorocarbons (PFC) along with non-invasive respiratory support techniques has proven the usefulness of PFC as a complementary substance to achieve a more homogeneous surfactant distribution. The aim of this work was to study the inhaled particles generated by means of an intracorporeal inhalation catheter, evaluating the size and mass distribution of different PFC aerosols. In this article, we discuss different experiments with the PFC perfluorodecalin (PFD) and FC75 with a driving pressure of 4–5 bar, evaluating properties such as the aerodynamic diameter (Da), since its value is directly linked to particle deposition in the lung. Furthermore, we develop a numerical model with computational fluid dynamics (CFD) techniques. The computational results showed an accurate prediction of the airflow axial velocity at different downstream positions when compared with the data gathered from the real experiments. The numerical validation of the cumulative mass distribution for PFD particles also confirmed a closer match with the experimental data measured at the optimal distance of 60 mm from the catheter tip. In the case of FC75, the cumulative mass fraction for particles above 10 µm was considerable higher with a driving pressure of 5 bar. These numerical models could be a helpful tool to assist parametric studies of new non-invasive devices for the treatment of RDS in preterm infants.
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Flögel U, Schlüter A, Jacoby C, Temme S, Banga JP, Eckstein A, Schrader J, Berchner-Pfannschmidt U. Multimodal assessment of orbital immune cell infiltration and tissue remodeling during development of graves disease by 1 H 19 F MRI. Magn Reson Med 2018; 80:711-718. [PMID: 29377287 DOI: 10.1002/mrm.27064] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 10/31/2017] [Revised: 12/08/2017] [Accepted: 12/08/2017] [Indexed: 12/23/2022]
Abstract
PURPOSE To evaluate key molecular and cellular features of Graves orbitopathy (GO) by simultaneous monitoring of alterations in morphology, inflammatory patterns, and tissue remodeling. METHODS To this end, we utilized a murine model of GO induced by immunization with a human thyroid-stimulating hormone receptor A-subunit plasmid. Altogether, 52 mice were used: 27 GOs and 25 controls (Ctrl) immunized with β-galactasidose plasmid. From these, 17 GO and 12 Ctrl mice were subjected to multimodal MRI at 9.4T, whereas 23 mice only underwent histology. Beyond anatomical hydrogen-1 (1 H) MRI, we employed transverse relaxation time (T2 ) mapping for visualization of edema, chemical exchange saturation transfer (CEST) for detection of hyaluronan, and fluorine-19 (19 F) MRI for tracking of in situ-labeled immune cells after intravenous injection of perfluorcarbons (PFCs). RESULTS 1 H/19 F MRI demonstrated substantial infiltration of PFC-loaded immune cells in peri and retro-orbital regions of GO mice, whereas healthy Ctrls showed only minor 19 F signals. In parallel, T2 mapping indicated onset of edema in periorbital tissue and adjacent ocular glands (P = 0.038/0.017), which were associated with enhanced orbital CEST signals in GO mice (P = 0.031). Concomitantly, a moderate expansion of retrobulbar fat (P = 0.029) was apparent; however, no signs for extraocular myopathy were detectable. 19 F MRI-based visualization of orbital inflammation exhibited the highest significance level to discriminate between GO and Ctrl mice (P = 0.006) and showed the best correlation with the clinical score (P = 0.0007). CONCLUSION The present approach permits the comprehensive characterization of orbital tissue and holds the potential for accurate GO diagnosis in the clinical setting. Magn Reson Med 80:711-718, 2018. © 2018 International Society for Magnetic Resonance in Medicine.
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Affiliation(s)
- Ulrich Flögel
- Experimental Cardiovascular Imaging, Department of Molecular Cardiology, Heinrich Heine University Düsseldorf, Germany.,Department of Cardiology, Pneumology and Angiology, University Hospital Düsseldorf, Germany.,Cardiovascular Research Institute Düsseldorf (CARID), Heinrich-Heine-Universität Düsseldorf, Germany
| | - Anke Schlüter
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Essen, Germany
| | - Christoph Jacoby
- Experimental Cardiovascular Imaging, Department of Molecular Cardiology, Heinrich Heine University Düsseldorf, Germany.,Department of Cardiology, Pneumology and Angiology, University Hospital Düsseldorf, Germany
| | - Sebastian Temme
- Experimental Cardiovascular Imaging, Department of Molecular Cardiology, Heinrich Heine University Düsseldorf, Germany
| | | | - Anja Eckstein
- Ophthalmic Clinic, University Hospital Essen, Germany
| | - Jürgen Schrader
- Experimental Cardiovascular Imaging, Department of Molecular Cardiology, Heinrich Heine University Düsseldorf, Germany
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25
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Minami K, Mori T, Nakanishi W, Shigi N, Nakanishi J, Hill JP, Komiyama M, Ariga K. Suppression of Myogenic Differentiation of Mammalian Cells Caused by Fluidity of a Liquid-Liquid Interface. ACS Appl Mater Interfaces 2017; 9:30553-30560. [PMID: 28836758 DOI: 10.1021/acsami.7b11445] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 05/06/2023]
Abstract
There is growing evidence to suggest that the prevailing physical microenvironment and mechanical stress regulate cellular functions, including adhesion, proliferation, and differentiation. Moreover, the physical microenvironment determines the stem-cell lineage depending on stiffness of the substrate relative to biological tissues as well as the stress relaxation properties of the viscoelastic substrates used for cell culture. However, there is little known regarding the biological effects of a fluid substrate, where viscoelastic stress is essentially absent. Here, we demonstrate the regulation of myogenic differentiation on fluid substrates by using a liquid-liquid interface as a scaffold. C2C12 myoblast cells were cultured using water-perfluorocarbon (PFC) interfaces as the fluid microenvironment. We found that, for controlled in vitro culture at water-PFC interfaces, expression of myogenin, myogenic regulatory factors (MRF) family gene, is remarkably attenuated even when myogenic differentiation was induced by reducing levels of growth factors, although MyoD was expressed at the usual level (MyoD up-regulates myogenin under an elastic and/or viscoelastic environment). These results strongly suggest that this unique regulation of myogenic differentiation can be attributed to the fluid microenvironment of the interfacial culture medium. This interfacial culture system represents a powerful tool for investigation of the mechanisms by which physical properties regulate cellular adhesion and proliferation as well as their differentiation. Furthermore, we successfully transferred the cells cultured at such interfaces using Langmuir-Blodgett (LB) techniques. The combination of the interfacial culture system with the LB approach enables investigation of the effects of mechanical compression on cell functions.
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Affiliation(s)
- Kosuke Minami
- International Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) , 1-1, Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Taizo Mori
- International Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) , 1-1, Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Waka Nakanishi
- International Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) , 1-1, Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Narumi Shigi
- International Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) , 1-1, Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Jun Nakanishi
- International Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) , 1-1, Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Jonathan P Hill
- International Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) , 1-1, Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Makoto Komiyama
- International Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) , 1-1, Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Katsuhiko Ariga
- International Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) , 1-1, Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Graduate School of Frontier Science, The University of Tokyo , 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
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26
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Hanga MP, Murasiewicz H, Pacek AW, Nienow AW, Coopman K, Hewitt CJ. Expansion of bone marrow-derived human mesenchymal stem/stromal cells (hMSCs) using a two-phase liquid/liquid system. J Chem Technol Biotechnol 2017; 92:1577-1589. [PMID: 28706339 PMCID: PMC5485050 DOI: 10.1002/jctb.5279] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 03/06/2017] [Accepted: 03/09/2017] [Indexed: 05/05/2023]
Abstract
BACKGROUND Human mesenchymal stem/stromal cells (hMSCs) are at the forefront of regenerative medicine applications due to their relatively easy isolation and availability in adults, potential to differentiate and to secrete a range of trophic factors that could determine specialised tissue regeneration. To date, hMSCs have been successfully cultured in vitro on substrates such as polystyrene dishes (TCPS) or microcarriers. However, hMSC sub-cultivation and harvest typically employs proteolytic enzymes that act by cleaving important cell membrane proteins resulting in long-term cell damage. In a process where the cells themselves are the product, a non-enzymatic and non-damaging harvesting approach is desirable. RESULTS An alternative system for hMSC expansion and subsequent non-enzymatic harvest was investigated here. A liquid/liquid two-phase system was proposed, comprising a selected perfluorocarbon (FC40) and growth medium (DMEM). The cells exhibited similar cell morphologies compared with TCPS. Moreover, they retained their identity and differentiation potential post-expansion and post-harvest. Further, no significant difference was found when culturing hMSCs in the culture systems prepared with either fresh or recycled FC40 perfluorocarbon. CONCLUSIONS These findings make the FC40/DMEM system an attractive alternative for traditional cell culture substrates due to their ease of cell recovery and recyclability, the latter impacting on overall process costs. © 2017 The Authors. Journal of Chemical Technology & Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Mariana P Hanga
- Centre for Biological EngineeringLoughborough UniversityLoughboroughUK
- Aston Medical Research InstituteAston UniversityBirminghamUK
| | - Halina Murasiewicz
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
- West Pomeranian University of Technology SzczecinFaculty of Chemical Technology and EngineeringSzczecinPoland
| | - Andrzej W Pacek
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
| | - Alvin W Nienow
- Centre for Biological EngineeringLoughborough UniversityLoughboroughUK
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
- Aston Medical Research InstituteAston UniversityBirminghamUK
| | - Karen Coopman
- Centre for Biological EngineeringLoughborough UniversityLoughboroughUK
| | - Christopher J Hewitt
- Centre for Biological EngineeringLoughborough UniversityLoughboroughUK
- Aston Medical Research InstituteAston UniversityBirminghamUK
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27
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Hanga MP, Murasiewicz H, Pacek AW, Nienow AW, Coopman K, Hewitt CJ. Expansion of bone marrow-derived human mesenchymal stem/stromal cells (hMSCs) using a two-phase liquid/liquid system. J Chem Technol Biotechnol 2017. [PMID: 28706339 DOI: 10.1002/jctb.5279m] [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] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
BACKGROUND Human mesenchymal stem/stromal cells (hMSCs) are at the forefront of regenerative medicine applications due to their relatively easy isolation and availability in adults, potential to differentiate and to secrete a range of trophic factors that could determine specialised tissue regeneration. To date, hMSCs have been successfully cultured in vitro on substrates such as polystyrene dishes (TCPS) or microcarriers. However, hMSC sub-cultivation and harvest typically employs proteolytic enzymes that act by cleaving important cell membrane proteins resulting in long-term cell damage. In a process where the cells themselves are the product, a non-enzymatic and non-damaging harvesting approach is desirable. RESULTS An alternative system for hMSC expansion and subsequent non-enzymatic harvest was investigated here. A liquid/liquid two-phase system was proposed, comprising a selected perfluorocarbon (FC40) and growth medium (DMEM). The cells exhibited similar cell morphologies compared with TCPS. Moreover, they retained their identity and differentiation potential post-expansion and post-harvest. Further, no significant difference was found when culturing hMSCs in the culture systems prepared with either fresh or recycled FC40 perfluorocarbon. CONCLUSIONS These findings make the FC40/DMEM system an attractive alternative for traditional cell culture substrates due to their ease of cell recovery and recyclability, the latter impacting on overall process costs. © 2017 The Authors. Journal of Chemical Technology & Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Mariana P Hanga
- Centre for Biological EngineeringLoughborough UniversityLoughboroughUK
- Aston Medical Research InstituteAston UniversityBirminghamUK
| | - Halina Murasiewicz
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
- West Pomeranian University of Technology SzczecinFaculty of Chemical Technology and EngineeringSzczecinPoland
| | - Andrzej W Pacek
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
| | - Alvin W Nienow
- Centre for Biological EngineeringLoughborough UniversityLoughboroughUK
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
- Aston Medical Research InstituteAston UniversityBirminghamUK
| | - Karen Coopman
- Centre for Biological EngineeringLoughborough UniversityLoughboroughUK
| | - Christopher J Hewitt
- Centre for Biological EngineeringLoughborough UniversityLoughboroughUK
- Aston Medical Research InstituteAston UniversityBirminghamUK
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28
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Hanga MP, Murasiewicz H, Pacek AW, Nienow AW, Coopman K, Hewitt CJ. Expansion of bone marrow-derived human mesenchymal stem/stromal cells (hMSCs) using a two-phase liquid/liquid system. J Chem Technol Biotechnol 2017. [PMID: 28706339 DOI: 10.1002/jctb.5166] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
BACKGROUND Human mesenchymal stem/stromal cells (hMSCs) are at the forefront of regenerative medicine applications due to their relatively easy isolation and availability in adults, potential to differentiate and to secrete a range of trophic factors that could determine specialised tissue regeneration. To date, hMSCs have been successfully cultured in vitro on substrates such as polystyrene dishes (TCPS) or microcarriers. However, hMSC sub-cultivation and harvest typically employs proteolytic enzymes that act by cleaving important cell membrane proteins resulting in long-term cell damage. In a process where the cells themselves are the product, a non-enzymatic and non-damaging harvesting approach is desirable. RESULTS An alternative system for hMSC expansion and subsequent non-enzymatic harvest was investigated here. A liquid/liquid two-phase system was proposed, comprising a selected perfluorocarbon (FC40) and growth medium (DMEM). The cells exhibited similar cell morphologies compared with TCPS. Moreover, they retained their identity and differentiation potential post-expansion and post-harvest. Further, no significant difference was found when culturing hMSCs in the culture systems prepared with either fresh or recycled FC40 perfluorocarbon. CONCLUSIONS These findings make the FC40/DMEM system an attractive alternative for traditional cell culture substrates due to their ease of cell recovery and recyclability, the latter impacting on overall process costs. © 2017 The Authors. Journal of Chemical Technology & Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Mariana P Hanga
- Centre for Biological EngineeringLoughborough UniversityLoughboroughUK
- Aston Medical Research InstituteAston UniversityBirminghamUK
| | - Halina Murasiewicz
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
- West Pomeranian University of Technology SzczecinFaculty of Chemical Technology and EngineeringSzczecinPoland
| | - Andrzej W Pacek
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
| | - Alvin W Nienow
- Centre for Biological EngineeringLoughborough UniversityLoughboroughUK
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
- Aston Medical Research InstituteAston UniversityBirminghamUK
| | - Karen Coopman
- Centre for Biological EngineeringLoughborough UniversityLoughboroughUK
| | - Christopher J Hewitt
- Centre for Biological EngineeringLoughborough UniversityLoughboroughUK
- Aston Medical Research InstituteAston UniversityBirminghamUK
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29
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Lee AL, Gee CT, Weegman BP, Einstein SA, Juelfs A, Ring HL, Hurley KR, Egger SM, Swindlehurst G, Garwood M, Pomerantz WCK, Haynes CL. Oxygen Sensing with Perfluorocarbon-Loaded Ultraporous Mesostructured Silica Nanoparticles. ACS Nano 2017; 11:5623-5632. [PMID: 28505422 PMCID: PMC5515277 DOI: 10.1021/acsnano.7b01006] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [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] [Indexed: 05/26/2023]
Abstract
Oxygen homeostasis is important in the regulation of biological function. Disease progression can be monitored by measuring oxygen levels, thus producing information for the design of therapeutic treatments. Noninvasive measurements of tissue oxygenation require the development of tools with minimal adverse effects and facile detection of features of interest. Fluorine magnetic resonance imaging (19F MRI) exploits the intrinsic properties of perfluorocarbon (PFC) liquids for anatomical imaging, cell tracking, and oxygen sensing. However, the highly hydrophobic and lipophobic properties of perfluorocarbons require the formation of emulsions for biological studies, though stabilizing these emulsions has been challenging. To enhance the stability and biological loading of perfluorocarbons, one option is to incorporate perfluorocarbon liquids into the internal space of biocompatible mesoporous silica nanoparticles. Here, we developed perfluorocarbon-loaded ultraporous mesostructured silica nanoparticles (PERFUMNs) as 19F MRI detectable oxygen-sensing probes. Ultraporous mesostructured silica nanoparticles (UMNs) have large internal cavities (average = 1.8 cm3 g-1), facilitating an average 17% loading efficiency of PFCs, meeting the threshold fluorine concentrations needed for imaging studies. Perfluoro-15-crown-5-ether PERFUMNs have the highest equivalent nuclei per PFC molecule and a spin-lattice (T1) relaxation-based oxygen sensitivity of 0.0032 mmHg-1 s-1 at 16.4 T. The option of loading PFCs after synthesizing UMNs, rather than traditional in situ core-shell syntheses, allows for use of a broad range of PFC liquids from a single material. The biocompatible and tunable chemistry of UMNs combined with the intrinsic properties of PFCs makes PERFUMNs a MRI sensor with potential for anatomical imaging, cell tracking, and metabolic spectroscopy with improved stability.
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Affiliation(s)
- Amani L. Lee
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455, United States
| | - Clifford T. Gee
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455, United States
| | - Bradley P. Weegman
- Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN 55455, United States
| | - Samuel A. Einstein
- Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN 55455, United States
| | - Adam Juelfs
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455, United States
| | - Hattie L. Ring
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455, United States
- Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN 55455, United States
| | - Katie R. Hurley
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455, United States
| | - Sam M. Egger
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455, United States
| | - Garrett Swindlehurst
- Department of Chemical Engineering & Material Science, University of Minnesota, Minneapolis, MN 55455, United States
| | - Michael Garwood
- Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN 55455, United States
| | | | - Christy L. Haynes
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455, United States
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30
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Patil PS, Leipzig ND. Fluorinated methacrylamide chitosan sequesters reactive oxygen species to relieve oxidative stress while delivering oxygen. J Biomed Mater Res A 2017; 105:2368-2374. [PMID: 28371332 DOI: 10.1002/jbm.a.36079] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 06/03/2016] [Revised: 03/13/2017] [Accepted: 03/23/2017] [Indexed: 12/31/2022]
Abstract
Antioxidants play an important role in regulating overabundant reactive oxygen species (ROS) in wound healing to reduce oxidative stress and inflammation. In this work, we demonstrate for the first time that functionalization of methacrylamide chitosan (MAC) with aliphatic pentadecafluoro chains, to synthesize pentadecafluoro-octanoyl methacrylamide chitosan (MACF), enhances the antioxidant capacity of the MAC base hydrogel material, while being able to deliver oxygen for future enhanced wound healing applications. As such, MACF was shown to sequester more nitric oxide (p < 0.01) and hydroxyl (p < 0.0001) radicals as compared to the negative control even when delivering additional oxygen. MACF's beneficial antioxidant capacity was further confirmed in in vitro cell culture experiments using human dermal fibroblasts stressed with 2,2'-azobis(2-methylpropionamidine) dihydrochloride (AAPH). © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 2368-2374, 2017.
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Affiliation(s)
- Pritam S Patil
- Department of Chemical and Biomolecular Engineering, University of Akron, Ohio, 44325
| | - Nic D Leipzig
- Department of Chemical and Biomolecular Engineering, University of Akron, Ohio, 44325
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31
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Matthews JC, Bacak A, Khan MA, Wright MD, Priestley M, Martin D, Percival CJ, Shallcross DE. Urban Pollutant Transport and Infiltration into Buildings Using Perfluorocarbon Tracers. Int J Environ Res Public Health 2017; 14:E214. [PMID: 28230812 DOI: 10.3390/ijerph14020214] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 01/25/2017] [Accepted: 02/14/2017] [Indexed: 12/05/2022]
Abstract
People spend the majority of their time indoors and therefore the quality of indoor air is worthy of investigation; indoor air quality is affected by indoor sources of pollutants and from pollutants entering buildings from outdoors. In this study, unique perfluorocarbon tracers were released in five experiments at a 100 m and ~2 km distance from a large university building in Manchester, UK and tracer was also released inside the building to measure the amount of outdoor material penetrating into buildings and the flow of material within the building itself. Air samples of the tracer were taken in several rooms within the building, and a CO2 tracer was used within the building to estimate air-exchange rates. Air-exchange rates were found to vary between 0.57 and 10.90 per hour. Indoor perfluorocarbon tracer concentrations were paired to outdoor tracer concentrations, and in-out ratios were found to vary between 0.01 and 3.6. The largest room with the lowest air-exchange rate exhibited elevated tracer concentrations for over 60 min after the release had finished, but generally had the lowest concentrations, the room with the highest ventilation rates had the highest concentration over 30 min, but the peak decayed more rapidly. Tracer concentrations indoors compared to outdoors imply that pollutants remain within buildings after they have cleared outside, which must be considered when evaluating human exposure to outdoor pollutants.
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Jacoby C, Temme S, Mayenfels F, Benoit N, Krafft MP, Schubert R, Schrader J, Flögel U. Probing different perfluorocarbons for in vivo inflammation imaging by 19F MRI: image reconstruction, biological half-lives and sensitivity. NMR Biomed 2014; 27:261-71. [PMID: 24353148 DOI: 10.1002/nbm.3059] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 11/06/2013] [Accepted: 11/07/2013] [Indexed: 05/22/2023]
Abstract
Inflammatory processes can reliably be assessed by (19)F MRI using perfluorocarbons (PFCs), which is primarily based on the efficient uptake of emulsified PFCs by circulating cells of the monocyte-macrophage system and subsequent infiltration of the (19)F-labeled cells into affected tissue. An ideal candidate for the sensitive detection of fluorine-loaded cells is the biochemically inert perfluoro-15-crown-5 ether (PFCE), as it contains 20 magnetically equivalent (19)F atoms. However, the biological half-life of PFCE in the liver and spleen is extremely long, and so this substance is not suitable for future clinical applications. In the present study, we investigated alternative, nontoxic PFCs with predicted short biological half-lives and high fluorine content: perfluorooctyl bromide (PFOB), perfluorodecalin (PFD) and trans-bis-perfluorobutyl ethylene (F-44E). Despite the complex spectra of these compounds, we obtained artifact-free images using sine-squared acquisition-weighted three-dimensional chemical shift imaging and dedicated reconstruction accomplished with in-house-developed software. The signal-to-noise ratio of the images was maximized using a Nutall window with only moderate localization error. Using this approach, the retention times of the different PFCs in murine liver and spleen were determined at 9.4 T. The biological half-lives were estimated to be 9 days (PFD), 12 days (PFOB) and 28 days (F-44E), compared with more than 250 days for PFCE. In vivo sensitivity for inflammation imaging was assessed using an ear clip injury model. The alternative PFCs PFOB and F-44E provided 37% and 43%, respectively, of the PFCE intensities, whereas PFD did not show any signal in the ear model. Thus, for in vivo monitoring of inflammatory processes, PFOB emerges as the most promising candidate for possible future translation of (19)F MR inflammation imaging to human applications.
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Affiliation(s)
- Christoph Jacoby
- Institut für Molekulare Kardiologie, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
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Abstract
Design and development of a new formulation as a unique assembly of distinct fluorescent reporters with nonoverlapping fluorescence spectra and a F19 magnetic resonance imaging agent into colloidally and optically stable triphasic nanoemulsion are reported. Specifically, a cyanine dye-perfluorocarbon (PFC) conjugate was introduced into the PFC phase of the nanoemulsion and a near-infrared dye was introduced into the hydrocarbon (HC) layer. To the best of our knowledge, this is the first report of a triphasic nanoemulsion system where each oil phase, HC, and PFC are fluorescently labeled and formulated into an optically and colloidally stable nanosystem. Having, each oil phase separately labeled by a fluorescent dye allows for improved correlation between in vivo imaging and histological data. Further, dual fluorescent labeling can improve intracellular tracking of the nanodroplets and help assess the fate of the nanoemulsion in biologically relevant media. The nanoemulsions were produced by high shear processing (microfluidization) and stabilized with biocompatible nonionic surfactants resulting in mono-modal size distribution with average droplet size less than 200 nm. Nanoemulsions demonstrate excellent colloidal stability and only moderate changes in the fluorescence signal for both dyes. Confocal fluorescence microscopy of macrophages exposed to nanoemulsions shows the presence of both fluorescence agents in the cytoplasm.
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Affiliation(s)
- Sravan Kumar Patel
- Duquesne University, Graduate School of Pharmaceutical Sciences, Pittsburgh, Pennsylvania 15282-0001
| | - Michael J. Patrick
- Carnegie Mellon University, Molecular Biosensor and Imaging Center, Pittsburgh, Pennsylvania 15213-2612
| | - John A. Pollock
- Duquesne University, Bayer School of Natural and Environmental Sciences, Department of Biological Sciences, Pittsburgh, Pennsylvania 15282-0001
| | - Jelena M. Janjic
- Duquesne University, Graduate School of Pharmaceutical Sciences, Pittsburgh, Pennsylvania 15282-0001
- Address all correspondence to: Jelena M. Janjic, Duquesne University, Graduate School of Pharmaceutical Sciences, Pittsburgh, Pennsylvania 15282-0001. Tel: 412-369-6369; Fax: 412-396-4660; E-mail:
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34
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Ye YX, Basse-Lüsebrink TC, Arias-Loza PA, Kocoski V, Kampf T, Gan Q, Bauer E, Sparka S, Helluy X, Hu K, Hiller KH, Boivin-Jahns V, Jakob PM, Jahns R, Bauer WR. Monitoring of monocyte recruitment in reperfused myocardial infarction with intramyocardial hemorrhage and microvascular obstruction by combined fluorine 19 and proton cardiac magnetic resonance imaging. Circulation 2013. [PMID: 24025595 DOI: 10.1161/circulat ionaha.113.000731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Monocytes and macrophages are indispensable in the healing process after myocardial infarction (MI); however, the spatiotemporal distribution of monocyte infiltration and its correlation to prognostic indicators of reperfused MI have not been well described. METHODS AND RESULTS With combined fluorine 19/proton ((1)H) magnetic resonance imaging, we noninvasively visualized the spatiotemporal recruitment of monocytes in vivo in a rat model of reperfused MI. Blood monocytes were labeled by intravenous injection of (19)F-perfluorocarbon emulsion 1 day after MI. The distribution patterns of monocyte infiltration were correlated to the presence of microvascular obstruction (MVO) and intramyocardial hemorrhage. In vivo, (19)F/(1)H magnetic resonance imaging performed in series revealed that monocyte infiltration was spatially inhomogeneous in reperfused MI areas. In the absence of MVO, monocyte infiltration was more intense in MI regions with serious ischemia-reperfusion injuries, indicated by severe intramyocardial hemorrhage; however, monocyte recruitment was significantly impaired in MVO areas accompanied by severe intramyocardial hemorrhage. Compared with MI with isolated intramyocardial hemorrhage, MI with MVO resulted in significantly worse pump function of the left ventricle 28 days after MI. CONCLUSIONS Monocyte recruitment was inhomogeneous in reperfused MI tissue. It was highly reduced in MVO areas defined by magnetic resonance imaging. The impaired monocyte infiltration in MVO regions could be related to delayed healing and worse functional outcomes in the long term. Therefore, monocyte recruitment in MI with MVO could be a potential diagnostic and therapeutic target that could be monitored noninvasively and longitudinally by (19)F/(1)H magnetic resonance imaging in vivo.
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Affiliation(s)
- Yu-Xiang Ye
- Department of Experimental Physics 5 (Y.-X.Y., T.K., X.H., P.M.J.) and Institute of Pharmacology and Toxicology (V.B.-J.), University of Wuerzburg, Wuerzburg, Germany; Comprehensive Heart Failure Center/Deutsches Zentrum für Herzinsuffizienz, Wuerzburg, Germany (Y.-X.Y., W.R.B.); Research Center for Magnetic Resonance Bavaria, Wuerzburg, Germany (T.C.B.-L., K.-H.H., P.M.J.); Department of Internal Medicine I, University Hospital Wuerzburg, Wuerzburg, Germany (P.-A.A.-L., E.B., K.H., R.J., W.R.B.); Institute of Virology and Immunobiology, University of Wuerzburg, Wuerzburg, Germany (V.K.); Rudolf Virchow Center, University of Wuerzburg, Wuerzburg, Germany (Q.G.); and Institute of Inorganic Chemistry, Wuerzburg, Germany (S.S.)
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35
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Ye YX, Basse-Lüsebrink TC, Arias-Loza PA, Kocoski V, Kampf T, Gan Q, Bauer E, Sparka S, Helluy X, Hu K, Hiller KH, Boivin-Jahns V, Jakob PM, Jahns R, Bauer WR. Monitoring of monocyte recruitment in reperfused myocardial infarction with intramyocardial hemorrhage and microvascular obstruction by combined fluorine 19 and proton cardiac magnetic resonance imaging. Circulation 2013; 128:1878-88. [PMID: 24025595 DOI: 10.1161/circulationaha.113.000731] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Monocytes and macrophages are indispensable in the healing process after myocardial infarction (MI); however, the spatiotemporal distribution of monocyte infiltration and its correlation to prognostic indicators of reperfused MI have not been well described. METHODS AND RESULTS With combined fluorine 19/proton ((1)H) magnetic resonance imaging, we noninvasively visualized the spatiotemporal recruitment of monocytes in vivo in a rat model of reperfused MI. Blood monocytes were labeled by intravenous injection of (19)F-perfluorocarbon emulsion 1 day after MI. The distribution patterns of monocyte infiltration were correlated to the presence of microvascular obstruction (MVO) and intramyocardial hemorrhage. In vivo, (19)F/(1)H magnetic resonance imaging performed in series revealed that monocyte infiltration was spatially inhomogeneous in reperfused MI areas. In the absence of MVO, monocyte infiltration was more intense in MI regions with serious ischemia-reperfusion injuries, indicated by severe intramyocardial hemorrhage; however, monocyte recruitment was significantly impaired in MVO areas accompanied by severe intramyocardial hemorrhage. Compared with MI with isolated intramyocardial hemorrhage, MI with MVO resulted in significantly worse pump function of the left ventricle 28 days after MI. CONCLUSIONS Monocyte recruitment was inhomogeneous in reperfused MI tissue. It was highly reduced in MVO areas defined by magnetic resonance imaging. The impaired monocyte infiltration in MVO regions could be related to delayed healing and worse functional outcomes in the long term. Therefore, monocyte recruitment in MI with MVO could be a potential diagnostic and therapeutic target that could be monitored noninvasively and longitudinally by (19)F/(1)H magnetic resonance imaging in vivo.
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Affiliation(s)
- Yu-Xiang Ye
- Department of Experimental Physics 5 (Y.-X.Y., T.K., X.H., P.M.J.) and Institute of Pharmacology and Toxicology (V.B.-J.), University of Wuerzburg, Wuerzburg, Germany; Comprehensive Heart Failure Center/Deutsches Zentrum für Herzinsuffizienz, Wuerzburg, Germany (Y.-X.Y., W.R.B.); Research Center for Magnetic Resonance Bavaria, Wuerzburg, Germany (T.C.B.-L., K.-H.H., P.M.J.); Department of Internal Medicine I, University Hospital Wuerzburg, Wuerzburg, Germany (P.-A.A.-L., E.B., K.H., R.J., W.R.B.); Institute of Virology and Immunobiology, University of Wuerzburg, Wuerzburg, Germany (V.K.); Rudolf Virchow Center, University of Wuerzburg, Wuerzburg, Germany (Q.G.); and Institute of Inorganic Chemistry, Wuerzburg, Germany (S.S.)
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Singh R, Husseini GA, Pitt WG. Phase transitions of nanoemulsions using ultrasound: experimental observations. Ultrason Sonochem 2012; 19:1120-5. [PMID: 22444691 PMCID: PMC3329591 DOI: 10.1016/j.ultsonch.2012.02.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [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: 10/02/2010] [Revised: 10/29/2011] [Accepted: 02/13/2012] [Indexed: 05/03/2023]
Abstract
The ultrasound-induced transformation of perfluorocarbon liquids to gases is of interest in the area of drug and gene delivery. In this study, three independent parameters (temperature, size, and perfluorocarbon species) were selected to investigate the effects of 476-kHz and 20-kHz ultrasound on nanoemulsion phase transition. Two levels of each factor (low and high) were considered at each frequency. The acoustic intensities at gas bubble formation and at the onset of inertial cavitation were recorded and subsequently correlated with the acoustic parameters. Experimental data showed that low frequencies are more effective in forming and collapsing a bubble. Additionally, as the size of the emulsion droplet increased, the intensity required for bubble formation decreased. As expected, perfluorohexane emulsions require greater intensity to form cavitating bubbles than perfluoropentane emulsions.
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Affiliation(s)
- Ram Singh
- Chemical Engineering Department, Brigham Young University, Provo, UT, USA
| | - Ghaleb A. Husseini
- Chemical Engineering Department, American University of Sharjah, Sharjah, UAE
| | - William G. Pitt
- Chemical Engineering Department, Brigham Young University, Provo, UT, USA
- Corresponding Author: Dr. William G. Pitt, Chemical Engineering Department, Brigham Young University, Provo, UT 84602 USA, 801-422-2589 office, 801-422-0151 FAX,
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Albaghdadi AS, Brooks LA, Pretorius AM, Kerber RE. Perfluorocarbon induced intra-arrest hypothermia does not improve survival in a swine model of asphyxial cardiac arrest. Resuscitation 2010; 81:353-8. [PMID: 20044200 PMCID: PMC2827481 DOI: 10.1016/j.resuscitation.2009.11.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2009] [Revised: 11/30/2009] [Accepted: 11/30/2009] [Indexed: 11/25/2022]
Abstract
BACKGROUND Pulseless electrical activity is an important cause of cardiac arrest. Our purpose was to determine if induction of hypothermia with a cold perfluorocarbon-based total liquid ventilation (TLV) system would improve resuscitation success in a swine model of asphyxial cardiac arrest/PEA. METHODS Twenty swine were randomly assigned to control (C, no ventilation, n=11) or TLV with pre-cooled PFC (n=9) groups. Asphyxia was induced by insertion of a stopper into the endotracheal tube, and continued in both groups until loss of aortic pulsations (LOAP) was reached, defined as a pulse pressure less than 2mmHg. The TLV animals underwent asphyxial arrest for an additional 2min after LOAP, followed by 3min of hypothermia, prior to starting CPR. The C animals underwent 5min of asphyxia beyond LOAP. Both groups then underwent CPR for at least 10min. The endpoint was the resumption of spontaneous circulation maintained for 10min. RESULTS Seven of 9 animals achieved resumption of spontaneous circulation (ROSC) in the TLV group vs. 5 of 11 in the C group (p=0.2). The mean pulmonary arterial temperature was lower in total liquid ventilation animals starting 4min after induction of hypothermia (TLV 36.3+/-0.2 degrees C vs. C 38.1+/-0.2 degrees C, p<0.0001). Arterial P(O)(2) was higher in total liquid ventilation animals at 2.5min of CPR (TLV 76+/-12mmHg vs. C 44+/-2mmHg; p=0.03). CONCLUSION Induction of moderate hypothermia using perfluorocarbon-based total liquid ventilation did not improve ROSC success in this model of asphyxial cardiac arrest.
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Affiliation(s)
- Ali S Albaghdadi
- The Cardiovascular Center, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, United States
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Frisbee SJ, Brooks AP Jr, Maher A, Flensborg P, Arnold S, Fletcher T, Steenland K, Shankar A, Knox SS, Pollard C, Halverson JA, Vieira VM, Jin C, Leyden KM, Ducatman AM. The C8 health project: design, methods, and participants. Environ Health Perspect 2009; 117:1873-82. [PMID: 20049206 DOI: 10.1289/ehp.0800379] [Citation(s) in RCA: 227] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2008] [Accepted: 07/13/2009] [Indexed: 01/09/2023]
Abstract
Background The C8 Health Project was created, authorized, and funded as part of the settlement agreement reached in the case of Jack W. Leach, et al. v. E.I. du Pont de Nemours & Company (no. 01-C-608 W.Va., Wood County Circuit Court, filed 10 April 2002). The settlement stemmed from the perfluorooctanoic acid (PFOA, or C8) contamination of drinking water in six water districts in two states near the DuPont Washington Works facility near Parkersburg, West Virginia. Objectives This study reports on the methods and results from the C8 Health Project, a population study created to gather data that would allow class members to know their own PFOA levels and permit subsequent epidemiologic investigations. Methods Final study participation was 69,030, enrolled over a 13-month period in 2005–2006. Extensive data were collected, including demographic data, medical diagnoses (both self-report and medical records review), clinical laboratory testing, and determination of serum concentrations of 10 perfluorocarbons (PFCs). Here we describe the processes used to collect, validate, and store these health data. We also describe survey participants and their serum PFC levels. Results The population geometric mean for serum PFOA was 32.91 ng/mL, 500% higher than previously reported for a representative American population. Serum concentrations for perfluorohexane sulfonate and perfluorononanoic acid were elevated 39% and 73% respectively, whereas perfluorooctanesulfonate was present at levels similar to those in the U.S. population. Conclusions This largest known population study of community PFC exposure permits new evaluations of associations between PFOA, in particular, and a range of health parameters. These will contribute to understanding of the biology of PFC exposure. The C8 Health Project also represents an unprecedented effort to gather basic data on an exposed population; its achievements and limitations can inform future legal settlements for populations exposed to environmental contaminants.
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Riter HG, Brooks LA, Pretorius AM, Ackermann LW, Kerber RE. Intra-arrest hypothermia: both cold liquid ventilation with perfluorocarbons and cold intravenous saline rapidly achieve hypothermia, but only cold liquid ventilation improves resumption of spontaneous circulation. Resuscitation 2009; 80:561-6. [PMID: 19249149 PMCID: PMC2706261 DOI: 10.1016/j.resuscitation.2009.01.016] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2008] [Revised: 12/03/2008] [Accepted: 01/21/2009] [Indexed: 11/24/2022]
Abstract
BACKGROUND Rapid intra-arrest induction of hypothermia using total liquid ventilation (TLV) with cold perfluorocarbons improves resuscitation outcome from ventricular fibrillation (VF). Cold saline intravenous infusion during cardiopulmonary resuscitation (CPR) is a simpler method of inducing hypothermia. We compared these 2 methods of rapid hypothermia induction for cardiac resuscitation. METHODS Three groups of swine were studied: cold preoxygenated TLV (TLV, n=8), cold intravenous saline infusion (S, n=8), and control (C, n=8). VF was electrically induced. Beginning at 8 min of VF, TLV and S animals received 3 min of cold TLV or rapid cold saline infusion. After 11 min of VF, all groups received standard air ventilation and closed chest massage. Defibrillation was attempted after 3 min of CPR (14 min of VF). The end point was resumption of spontaneous circulation (ROSC). RESULTS Pulmonary arterial (PA) temperature decreased after 1 min of CPR from 37.2 degrees C to 32.2 degrees C in S and from 37.1 degrees C to 34.8 degrees C in TLV (S or TLV vs. C p<0.0001). Coronary perfusion pressure (CPP) was higher in TLV than S animals during the initial 3 min of CPR. Arterial pO(2) was higher in the preoxygenated TLV animals. ROSC was achieved in 7 of 8 TLV, 2 of 8 S, and 1 of 8C (TLV vs. C, p=0.03). CONCLUSIONS Moderate hypothermia was achieved rapidly during VF and CPR using both cold saline infusion and cold TLV, but ROSC was higher than control only in cold TLV animals, probably due to better CPP and pO(2). The method by which hypothermia is achieved influences ROSC.
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Affiliation(s)
- Henry G Riter
- The Cardiovascular Center, College of Medicine, University of Iowa, Iowa City, IA 52242, United States.
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Abstract
Orthopaedic patients frequently require blood transfusions to treat peri-operative anemia. Research in the area of hemoglobin substitutes has been of great interest since it holds the promise of reducing the reliance on allogeneic blood transfusions. The three categories of hemoglobin substitutes are (1) cell-free, extracellular hemoglobin preparations made from human or bovine hemoglobin (hemoglobin-based oxygen carriers or HBOCs); (2) fluorine-substituted linear or cyclic carbon chains with a high oxygen-carrying capacity (perfluorocarbons); and (3) liposome-encapsulated hemoglobin. Of the three, HBOCs have been the most extensively studied and tested in preclinical and clinical trials that have shown success in diminishing the number of blood transfusions as well as an overall favorable side-effect profile. This has been demonstrated in vascular, cardiothoracic, and orthopaedic patients. HBOC-201, which is a preparation of cell-free bovine hemoglobin, has been approved for clinical use in South Africa. These products may well become an important tool for physicians treating peri-operative anemia in orthopaedic patients.
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Affiliation(s)
- Kevin K. Anbari
- />Department of Orthopaedic Surgery, University of Pennsylvania Health System, Philadelphia, PA 19104 USA
| | - Jonathan P. Garino
- />Department of Orthopaedic Surgery, University of Pennsylvania Health System, Philadelphia, PA 19104 USA
- />Department of Orthopaedic Surgery, 1 Cupp Pavilion, Presbyterian Hospital, 39th and Market Streets, Philadelphia, PA 19104 USA
| | - Colin F. Mackenzie
- />Department of Anesthesiology, University of Maryland School of Medicine, Baltimore, MD 21201 USA
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