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McFarlane AJ, Fercoq F, Coffelt SB, Carlin LM. Neutrophil dynamics in the tumor microenvironment. J Clin Invest 2021; 131:143759. [PMID: 33720040 PMCID: PMC7954585 DOI: 10.1172/jci143759] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The tumor microenvironment profoundly influences the behavior of recruited leukocytes and tissue-resident immune cells. These immune cells, which inherently have environmentally driven plasticity necessary for their roles in tissue homeostasis, dynamically interact with tumor cells and the tumor stroma and play critical roles in determining the course of disease. Among these immune cells, neutrophils were once considered much more static within the tumor microenvironment; however, some of these earlier assumptions were the product of the notorious difficulty in manipulating neutrophils in vitro. Technological advances that allow us to study neutrophils in context are now revealing the true roles of neutrophils in the tumor microenvironment. Here we discuss recent data generated by some of these tools and how these data might be synthesized into more elegant ways of targeting these powerful and abundant effector immune cells in the clinic.
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Affiliation(s)
| | - Frédéric Fercoq
- Cancer Research UK Beatson Institute, Glasgow, United Kingdom
| | - Seth B. Coffelt
- Cancer Research UK Beatson Institute, Glasgow, United Kingdom
- Institute of Cancer Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Leo M. Carlin
- Cancer Research UK Beatson Institute, Glasgow, United Kingdom
- Institute of Cancer Sciences, University of Glasgow, Glasgow, United Kingdom
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2
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Kishikawa N, El-Maghrabey M, Nagamune Y, Nagai K, Ohyama K, Kuroda N. A Smart Advanced Chemiluminescence-Sensing Platform for Determination and Imaging of the Tissue Distribution of Natural Antioxidants. Anal Chem 2020; 92:6984-6992. [PMID: 32316724 DOI: 10.1021/acs.analchem.0c00044] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Antioxidants have gained marked attention owing to their ability to prevent the oxidation of biological components and to protect the body from reactive oxygen species, thereby maintaining human health. Thus, antioxidant-rich dietary supplements and natural foods can be effective against oxidative stress and can even act as chemopreventive agents. Therefore, a simple and rapid assay for evaluation of antioxidant capacity and assessment of their distribution profile in natural sources is vital. Herein, we report a rapid, innovative chemiluminescence (CL) platform for evaluation and visualization of antioxidant capacity. We found that intense and long-lasting CL was formed upon the redox reaction of quinones, e.g., menadione, with antioxidants, e.g., l-ascorbic acid, in the presence of luminol. The produced CL intensities were proportional to the antioxidants' concentrations with a detection limit of 0.18 μM for the model antioxidant, l-ascorbic acid. As the formed CL was long-lasting, it could be easily captured and detected with a charge-coupled device (CCD) camera. To evaluate the quantification ability of the CCD camera, we developed a smart and fast microplate-based assay based on photographing the generated CL with a cooled CCD camera. The photographed CL intensities were linearly proportional with the antioxidant concentrations, and then the method was applied for photographing multiple food sample extracts. Ultimately, we utilized our method for the distribution profiling of antioxidant capacity in food cut sections. Samples were dipped in luminol and then in quinone, followed by CCD camera photography, without the need for any pulverization/extraction procedure, giving precise antioxidant distribution information.
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Affiliation(s)
- Naoya Kishikawa
- Department of Analytical Chemistry for Pharmaceuticals, Course of Pharmaceutical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Mahmoud El-Maghrabey
- Department of Analytical Chemistry for Pharmaceuticals, Course of Pharmaceutical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan.,Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Yuusuke Nagamune
- Department of Analytical Chemistry for Pharmaceuticals, Course of Pharmaceutical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Kaishu Nagai
- School of Pharmaceutical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Kaname Ohyama
- Department of Pharmacy Practice, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto-machi, Nagasaki 852-8588, Japan
| | - Naotaka Kuroda
- Department of Analytical Chemistry for Pharmaceuticals, Course of Pharmaceutical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
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3
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Le D, Dhamecha D, Gonsalves A, Menon JU. Ultrasound-Enhanced Chemiluminescence for Bioimaging. Front Bioeng Biotechnol 2020; 8:25. [PMID: 32117914 PMCID: PMC7016203 DOI: 10.3389/fbioe.2020.00025] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 01/13/2020] [Indexed: 12/14/2022] Open
Abstract
Tissue imaging has emerged as an important aspect of theragnosis. It is essential not only to evaluate the degree of the disease and thus provide appropriate treatments, but also to monitor the delivery of administered drugs and the subsequent recovery of target tissues. Several techniques including magnetic resonance imaging (MRI), computational tomography (CT), acoustic tomography (AT), biofluorescence (BF) and chemiluminescence (CL), have been developed to reconstruct three-dimensional images of tissues. While imaging has been achieved with adequate spatial resolution for shallow depths, challenges still remain for imaging deep tissues. Energy loss is usually observed when using a magnetic field or traditional ultrasound (US), which leads to a need for more powerful energy input. This may subsequently result in tissue damage. CT requires exposure to radiation and a high dose of contrast agent to be administered for imaging. The BF technique, meanwhile, is affected by strong scattering of light and autofluorescence of tissues. The CL is a more selective and sensitive method as stable luminophores are produced from physiochemical reactions, e.g. with reactive oxygen species. Development of near infrared-emitting luminophores also bring potential for application of CL in deep tissues and whole animal studies. However, traditional CL imaging requires an enhancer to increase the intensity of low-level light emissions, while reducing the scattering of emitted light through turbid tissue environment. There has been interest in the use of focused ultrasound (FUS), which can allow acoustic waves to propagate within tissues and modulate chemiluminescence signals. While light scattering is decreased, the spatial resolution is increased with the assistance of US. In this review, chemiluminescence detection in deep tissues with assistance of FUS will be highlighted to discuss its potential in deep tissue imaging.
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Affiliation(s)
| | | | | | - Jyothi U. Menon
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, The University of Rhode Island, Kingston, RI, United States
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4
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Stackowicz J, Jönsson F, Reber LL. Mouse Models and Tools for the in vivo Study of Neutrophils. Front Immunol 2020; 10:3130. [PMID: 32038641 PMCID: PMC6985372 DOI: 10.3389/fimmu.2019.03130] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 12/23/2019] [Indexed: 12/21/2022] Open
Abstract
Neutrophils are the most abundant leukocytes in human blood and critical actors of the immune system. Many neutrophil functions and facets of their activity in vivo were revealed by studying genetically modified mice or by tracking fluorescent neutrophils in animals using imaging approaches. Assessing the roles of neutrophils can be challenging, especially when exact molecular pathways are questioned or disease states are interrogated that alter normal neutrophil homeostasis. This review discusses the main in vivo models for the study of neutrophils, their advantages and limitations. The side-by-side comparison underlines the necessity to carefully choose the right model(s) to answer a given scientific question, and exhibit caveats that need to be taken into account when designing experimental procedures. Collectively, this review suggests that at least two models should be employed to legitimately conclude on neutrophil functions.
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Affiliation(s)
- Julien Stackowicz
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, UMR INSERM 1222, Paris, France.,Sorbonne Université, Collège Doctoral, Paris, France
| | - Friederike Jönsson
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, UMR INSERM 1222, Paris, France
| | - Laurent L Reber
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, UMR INSERM 1222, Paris, France.,Center for Pathophysiology Toulouse-Purpan (CPTP), UMR 1043, University of Toulouse, INSERM, CNRS, Toulouse, France
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5
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Davis RW, Snyder E, Miller J, Carter S, Houser C, Klampatsa A, Albelda SM, Cengel KA, Busch TM. Luminol Chemiluminescence Reports Photodynamic Therapy-Generated Neutrophil Activity In Vivo and Serves as a Biomarker of Therapeutic Efficacy. Photochem Photobiol 2018; 95:430-438. [PMID: 30357853 DOI: 10.1111/php.13040] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 10/03/2018] [Indexed: 01/26/2023]
Abstract
Inflammatory cells, most especially neutrophils, can be a necessary component of the antitumor activity occurring after administration of photodynamic therapy. Generation of neutrophil responses has been suggested to be particularly important in instances when the delivered photodynamic therapy (PDT) dose is insufficient. In these cases, the release of neutrophil granules and engagement of antitumor immunity may play an important role in eliminating residual disease. Herein, we utilize in vivo imaging of luminol chemiluminescence to noninvasively monitor neutrophil activation after PDT administration. Studies were performed in the AB12 murine model of mesothelioma, treated with Photofrin-PDT. Luminol-generated chemiluminescence increased transiently 1 h after PDT, followed by a subsequent decrease at 4 h after PDT. The production of luminol signal was not associated with the influx of Ly6G+ cells, but was related to oxidative burst, as an indicator of neutrophil function. Most importantly, greater levels of luminol chemiluminescence 1 h after PDT were prognostic of a complete response at 90 days after PDT. Taken together, this research supports an important role for early activity by Ly6G+ cells in the generation of long-term PDT responses in mesothelioma, and it points to luminol chemiluminescence as a potentially useful approach for preclinical monitoring of neutrophil activation by PDT.
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Affiliation(s)
- Richard W Davis
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Emma Snyder
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Joann Miller
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Shirron Carter
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Cassandra Houser
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Astero Klampatsa
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Steven M Albelda
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Keith A Cengel
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Theresa M Busch
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
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Martinez JO, Molinaro R, Hartman KA, Boada C, Sukhovershin R, De Rosa E, Kuri D, Zhang S, Evangelopoulos M, Carter AM, Bibb JA, Cooke JP, Tasciotti E. Biomimetic nanoparticles with enhanced affinity towards activated endothelium as versatile tools for theranostic drug delivery. Theranostics 2018; 8:1131-1145. [PMID: 29464004 PMCID: PMC5817115 DOI: 10.7150/thno.22078] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 11/09/2017] [Indexed: 12/30/2022] Open
Abstract
Activation of the vascular endothelium is characterized by increased expression of vascular adhesion molecules and chemokines. This activation occurs early in the progression of several diseases and triggers the recruitment of leukocytes. Inspired by the tropism of leukocytes, we investigated leukocyte-based biomimetic nanoparticles (i.e., leukosomes) as a novel theranostic platform for inflammatory diseases. Methods: Leukosomes were assembled by combining phospholipids and membrane proteins from leukocytes. For imaging applications, phospholipids modified with rhodamine and gadolinium were used. Leukosomes incubated with antibodies blocking lymphocyte function-associated antigen 1 (LFA-1) and CD45 were administered to explore their roles in targeting inflammation. In addition, relaxometric assessment of NPs was evaluated. Results: Liposomes and leukosomes were both spherical in shape with sizes ranging from 140-170 nm. Both NPs successfully integrated 8 and 13 µg of rhodamine and gadolinium, respectively, and demonstrated less than 4% variation in physicochemical features. Leukosomes demonstrated a 16-fold increase in breast tumor accumulation relative to liposomes. Furthermore, quantification of leukosomes in tumor vessels demonstrated a 4.5-fold increase in vessel lumens and a 14-fold increase in vessel walls. Investigating the targeting mechanism of action revealed that blockage of LFA-1 on leukosomes resulted in a 95% decrease in tumor accumulation. Whereas blockage of CD45 yielded a 60% decrease in targeting and significant increases in liver and spleen accumulation. In addition, when administered in mice with atherosclerotic plaques, leukosomes exhibited a 4-fold increase in the targeting of inflammatory vascular lesions. Lastly, relaxometric assessment of NPs demonstrated that the incorporation of membrane proteins into leukosomes did not impact the r1 and r2 relaxivities of the NPs, demonstrating 6 and 30 mM-1s-1, respectively. Conclusion: Our study demonstrates the ability of leukosomes to target activated vasculature and exhibit superior accumulation in tumors and vascular lesions. The versatility of the phospholipid backbone within leukosomes permits the incorporation of various contrast agents. Furthermore, leukosomes can potentially be loaded with therapeutics possessing diverse physical properties and thus warrant further investigation toward the development of powerful theranostic agents.
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Yapa AS, Wang H, Wendel SO, Shrestha TB, Kariyawasam N, Kalubowilage M, Perera AS, Pyle M, Basel MT, Malalasekera AP, Manawadu H, Yu J, Toledo Y, Ortega R, Thapa PS, Smith PE, Troyer DL, Bossmann SH. Peptide nanosponges designed for rapid uptake by leukocytes and neural stem cells. RSC Adv 2018; 8:16052-16060. [PMID: 35542227 PMCID: PMC9080234 DOI: 10.1039/c8ra00717a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 04/23/2018] [Indexed: 12/21/2022] Open
Abstract
The structure of novel binary nanosponges consisting of (cholesterol-(K/D)nDEVDGC)3-trimaleimide units possessing a trigonal maleimide linker, to which either lysine (K)20 or aspartic acid (D)20 are tethered, has been elucidated by means of TEM. A high degree of agreement between these findings and structure predictions through explicit solvent and then coarse-grained molecular dynamics (MD) simulations has been found. Based on the nanosponges' structure and dynamics, caspase-6 mediated release of the model drug 5(6)-carboxyfluorescein has been demonstrated. Furthermore, the binary (DK20) nanosponges have been found to be virtually non-toxic in cultures of neural progenitor cells. It is of a special importance for the future development of cell-based therapies that DK20 nanosponges were taken up efficiently by leucocytes (WBC) in peripheral blood within 3 h of exposure. The percentage of live cells among the WBC was not significantly decreased by the DK20 nanosponges. In contrast to stem cell or leucocyte cell cultures, which have to be matched to the patient, autologous cells are optimal for cell-mediated therapy. Therefore, the nanosponges hold great promise for effective cell-based tumor targeting. Nanosponges for drug delivery.![]()
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Rationally designed peptide nanosponges for cell-based cancer therapy. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:2555-2564. [DOI: 10.1016/j.nano.2017.07.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 07/07/2017] [Accepted: 07/12/2017] [Indexed: 11/20/2022]
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10
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dos Santos Câmara AL, Nagel G, Tschiche HR, Cardador CM, Muehlmann LA, de Oliveira DM, Alvim PQ, Azevedo RB, Calderón M, Figueiró Longo JP. Acid-sensitive lipidated doxorubicin prodrug entrapped in nanoemulsion impairs lung tumor metastasis in a breast cancer model. Nanomedicine (Lond) 2017; 12:1751-1765. [DOI: 10.2217/nnm-2017-0091] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aim: To develop an acid-sensitive lipidated, doxorubicin (Dox) prodrug (C16-Dox) to be entrapped in lipid nanoemulsion (NE-C16-Dox) as a nanocarrier to treat breast cancer models (in vitro and in vivo). Results: We report the efficacy of NE-C16-Dox in in vitro experiments, as well as the improved chemotherapeutic index and tumor-control efficacy compared with treatment with free Dox in an in vivo murine 4T1 breast cancer model. In addition, NE-C16-Dox allowed the use of a higher dose of Dox, acceptable biocompatibility and a significant reduction in lung metastasis. Conclusion: Taken together, these results indicate that NE-C16-Dox is promising for breast cancer treatment, thus creating possibilities to translate these nanotechnology concepts to clinical applications.
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Affiliation(s)
- Ana Lygia dos Santos Câmara
- Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasília, Brasilia, Brazil
| | - Gregor Nagel
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, Berlin 14195, Germany
| | - Harald R Tschiche
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, Berlin 14195, Germany
| | - Camila Magalhães Cardador
- Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasília, Brasilia, Brazil
| | - Luis Alexandre Muehlmann
- Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasília, Brasilia, Brazil
- Faculty of Ceilandia, University of Brasilia, Brasilia, Brazil
| | - Daniela Mara de Oliveira
- Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasília, Brasilia, Brazil
| | - Paula Queiroz Alvim
- Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasília, Brasilia, Brazil
| | - Ricardo Bentes Azevedo
- Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasília, Brasilia, Brazil
| | - Marcelo Calderón
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, Berlin 14195, Germany
| | - João Paulo Figueiró Longo
- Department of Genetics & Morphology, Institute of Biological Sciences, University of Brasília, Brasilia, Brazil
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Breyne K, Steenbrugge J, Demeyere K, Vanden Berghe T, Meyer E. Preconditioning with Lipopolysaccharide or Lipoteichoic Acid Protects against Staphylococcus aureus Mammary Infection in Mice. Front Immunol 2017; 8:833. [PMID: 28791009 PMCID: PMC5522847 DOI: 10.3389/fimmu.2017.00833] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 06/30/2017] [Indexed: 12/11/2022] Open
Abstract
Staphylococcus aureus is one of the most causative agents of mastitis and is associated with chronic udder infections. The persistency of the pathogen is believed to be the result of an insufficient triggering of local inflammatory signaling. In this study, the preclinical mastitis model was used, aiming to evaluate if lipopolysaccharide (LPS) or lipoteichoic acid (LTA) preconditioning could aid the host in more effectively clearing or at least limiting a subsequent S. aureus infection. A prototypic Gram-negative virulence factor, i.e., LPS and Gram-positive virulence factor, i.e., LTA were screened whether they were able to boost the local immune compartment. Compared to S. aureus-induced inflammation, both toxins had a remarkable high potency to efficiently induce two novel selected innate immunity biomarkers i.e., lipocalin 2 (LCN2) and chitinase 3-like 1 (CHI3L1). When combining mammary inoculation of LPS or LTA prior to a local S. aureus infection, we were able to modulate the innate immune response, reduce local bacterial loads, and induce either LCN2 or CHI3L1 at 24 h post-infection. Clodronate depletion of mammary macrophages also identified that macrophages contribute only to a limited extend to the LPS/LTA-induced immunomodulation upon S. aureus infection. Based on histological neutrophil influx evaluation, concomitant local cytokine profiles and LCN2/CHI3L1 patterns, the macrophage-independent signaling plays a major role in the LPS- or LTA-pretreated S. aureus-infected mouse mammary gland. Our results highlight the importance of a vigilant microenvironment during the innate immune response of the mammary gland and offer novel insights for new approaches concerning effective immunomodulation against a local bacterial infection.
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Affiliation(s)
- Koen Breyne
- Biochemistry, Faculty of Veterinary Medicine, Department of Pharmacology, Toxicology and Biochemistry, Ghent University, Merelbeke, Belgium
| | - Jonas Steenbrugge
- Biochemistry, Faculty of Veterinary Medicine, Department of Pharmacology, Toxicology and Biochemistry, Ghent University, Merelbeke, Belgium
| | - Kristel Demeyere
- Biochemistry, Faculty of Veterinary Medicine, Department of Pharmacology, Toxicology and Biochemistry, Ghent University, Merelbeke, Belgium
| | - Tom Vanden Berghe
- Peter Vandenabeele Lab, Inflammation Research Center, Department of Biomedical Molecular Biology, VIB, Ghent University, Zwijnaarde, Belgium
| | - Evelyne Meyer
- Biochemistry, Faculty of Veterinary Medicine, Department of Pharmacology, Toxicology and Biochemistry, Ghent University, Merelbeke, Belgium
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Paczuska J, Świtalska M, Nowak M, Kiełbowicz Z. Effectiveness of CO2laser in an experimental mammary gland adenocarcinoma model. Vet Comp Oncol 2017; 16:47-54. [DOI: 10.1111/vco.12310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 01/04/2017] [Accepted: 03/06/2017] [Indexed: 12/12/2022]
Affiliation(s)
- J. Paczuska
- Department of Surgery, Faculty of Veterinary Medicine; Wrocław University of Environmental and Life Sciences; Wrocław Poland
| | - M. Świtalska
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy; Wrocław Poland
| | - M. Nowak
- Department of Pathology; Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences; Wrocław Poland
| | - Z. Kiełbowicz
- Department of Surgery, Faculty of Veterinary Medicine; Wrocław University of Environmental and Life Sciences; Wrocław Poland
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Malalasekera AP, Wang H, Samarakoon TN, Udukala DN, Yapa AS, Ortega R, Shrestha TB, Alshetaiwi H, McLaurin EJ, Troyer DL, Bossmann SH. A nanobiosensor for the detection of arginase activity. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:383-390. [DOI: 10.1016/j.nano.2016.08.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 07/31/2016] [Accepted: 08/04/2016] [Indexed: 11/30/2022]
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Veziant J, Gagnière J, Jouberton E, Bonnin V, Sauvanet P, Pezet D, Barnich N, Miot-Noirault E, Bonnet M. Association of colorectal cancer with pathogenic Escherichia coli: Focus on mechanisms using optical imaging. World J Clin Oncol 2016; 7:293-301. [PMID: 27298769 PMCID: PMC4896897 DOI: 10.5306/wjco.v7.i3.293] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 11/04/2015] [Accepted: 03/25/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the molecular or cellular mechanisms related to the infection of epithelial colonic mucosa by pks-positive Escherichia coli (E. coli) using optical imaging.
METHODS: We choose to evaluate the tumor metabolic activity using a fluorodeoxyglucose analogue as 2-deoxyglucosone fluorescent probes and to correlate it with tumoral volume (mm3). Inflammation measuring myeloperoxidase (MPO) activity and reactive oxygen species production was monitored by a bioluminescent (BLI) inflammation probe and related to histological examination and MPO levels by enzyme-linked immunosorbent assay (ELISA) on tumor specimens. The detection and quantitation of these two signals were validated on a xenograft model of human colon adenocarcinoma epithelial cells (HCT116) in nude mice infected with a pks-positive E. coli. The inflammatory BLI signal was validated intra-digestively in the colitis-CEABAC10 DSS models, which mimicked Crohn’s disease.
RESULTS: Using a 2-deoxyglucosone fluorescent probe, we observed a high and specific HCT116 tumor uptake in correlation with tumoral volume (P = 0.0036). Using the inflammation probe targeting MPO, we detected a rapid systemic elimination and a significant increase of the BLI signal in the pks-positive E. coli-infected HCT116 xenograft group (P < 0.005). ELISA confirmed that MPO levels were significantly higher (1556 ± 313.6 vs 234.6 ± 121.6 ng/mL P = 0.001) in xenografts infected with the pathogenic E. coli strain. Moreover, histological examination of tumor samples confirmed massive infiltration of pks-positive E. coli-infected HCT116 tumors by inflammatory cells compared to the uninfected group. These data showed that infection with the pathogenic E. coli strain enhanced inflammation and ROS production in tumors before tumor growth. Moreover, we demonstrated that the intra-digestive monitoring of inflammation is feasible in a reference colitis murine model (CEABAC10/DSS).
CONCLUSION: Using BLI and fluorescence optical imaging, we provided tools to better understand host-pathogen interactions at the early stage of disease, such as inflammatory bowel disease and colorectal cancer.
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Simultaneous visualization of tumour oxygenation, neovascularization and contrast agent perfusion by real-time three-dimensional optoacoustic tomography. Eur Radiol 2015; 26:1843-51. [DOI: 10.1007/s00330-015-3980-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 07/20/2015] [Accepted: 08/10/2015] [Indexed: 01/18/2023]
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Griesbeck AG, Díaz-Miara Y, Fichtler R, Jacobi von Wangelin A, Pérez-Ruiz R, Sampedro D. Steric Enhancement of the Chemiluminescence of Luminols. Chemistry 2015; 21:9975-9. [PMID: 26041370 DOI: 10.1002/chem.201500798] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 05/12/2015] [Indexed: 01/17/2023]
Abstract
A surprising 20-fold increase in chemiluminescence efficiency was observed for dialkyl luminol derivatives in comparison with the parent compound. This effect could be a direct consequence of steric gearing which facilitates the transition from the intermediate endoperoxide to the electronically excited phthalate. Mechanistic aspects of this process have been supported by computational calculations (CASPT2//CASSCF).
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Affiliation(s)
| | | | | | - Axel Jacobi von Wangelin
- Institute of Organic Chemistry, University of Regensburg, Universitaetstr. 31, 93040 Regensburg (Germany)
| | - Raúl Pérez-Ruiz
- Institute of Organic Chemistry, University of Regensburg, Universitaetstr. 31, 93040 Regensburg (Germany).
| | - Diego Sampedro
- Departamento de Química, Centro de Investigación en Síntesis, Química (CSIQ), Universidad de La Rioja, Madre de Dios, 51, 26006, Logroño (Spain).
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DeNichilo MO, Panagopoulos V, Rayner TE, Borowicz RA, Greenwood JE, Evdokiou A. Peroxidase enzymes regulate collagen extracellular matrix biosynthesis. THE AMERICAN JOURNAL OF PATHOLOGY 2015; 185:1372-84. [PMID: 25759268 DOI: 10.1016/j.ajpath.2015.01.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 12/23/2014] [Accepted: 01/21/2015] [Indexed: 11/17/2022]
Abstract
Myeloperoxidase and eosinophil peroxidase are heme-containing enzymes often physically associated with fibrotic tissue and cancer in various organs, without any direct involvement in promoting fibroblast recruitment and extracellular matrix (ECM) biosynthesis at these sites. We report herein novel findings that show peroxidase enzymes possess a well-conserved profibrogenic capacity to stimulate the migration of fibroblastic cells and promote their ability to secrete collagenous proteins to generate a functional ECM both in vitro and in vivo. Mechanistic studies conducted using cultured fibroblasts show that these cells are capable of rapidly binding and internalizing both myeloperoxidase and eosinophil peroxidase. Peroxidase enzymes stimulate collagen biosynthesis at a post-translational level in a prolyl 4-hydroxylase-dependent manner that does not require ascorbic acid. This response was blocked by the irreversible myeloperoxidase inhibitor 4-amino-benzoic acid hydrazide, indicating peroxidase catalytic activity is essential for collagen biosynthesis. These results suggest that peroxidase enzymes, such as myeloperoxidase and eosinophil peroxidase, may play a fundamental role in regulating the recruitment of fibroblast and the biosynthesis of collagen ECM at sites of normal tissue repair and fibrosis, with enormous implications for many disease states where infiltrating inflammatory cells deposit peroxidases.
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Affiliation(s)
- Mark O DeNichilo
- Breast Cancer Research Unit, Discipline of Surgery, The University of Adelaide, Adelaide, South Australia, Australia.
| | - Vasilios Panagopoulos
- Breast Cancer Research Unit, Discipline of Surgery, The University of Adelaide, Adelaide, South Australia, Australia
| | - Timothy E Rayner
- Paramedic Unit, Flinders Clinical Effectiveness, School of Medicine, Flinders University, Bedford Park, South Australia, Australia
| | - Romana A Borowicz
- Mesenchymal Stem Cell Laboratory, School of Medical Sciences, Faculty of Health Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - John E Greenwood
- Adult Burn Centre, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Andreas Evdokiou
- Breast Cancer Research Unit, Discipline of Surgery, The University of Adelaide, Adelaide, South Australia, Australia; Center for Personalized Cancer Medicine, The University of Adelaide, Adelaide, South Australia, Australia.
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Changbin X, Qun Z, Yifeng T. An Innovative Route to Prepare the All-solid-state Electrochemiluminescent Electrode — Using the Nano-rods of Luminol/Aniline Copolymer. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.07.081] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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