51
|
Scarim CB, Chin CM. Current Approaches to Drug Discovery for Chagas Disease: Methodological Advances. Comb Chem High Throughput Screen 2020; 22:509-520. [PMID: 31608837 DOI: 10.2174/1386207322666191010144111] [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: 04/18/2019] [Revised: 07/31/2019] [Accepted: 09/06/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND In recent years, there has been an improvement in the in vitro and in vivo methodology for the screening of anti-chagasic compounds. Millions of compounds can now have their activity evaluated (in large compound libraries) by means of high throughput in vitro screening assays. OBJECTIVE Current approaches to drug discovery for Chagas disease. METHOD This review article examines the contribution of these methodological advances in medicinal chemistry in the last four years, focusing on Trypanosoma cruzi infection, obtained from the PubMed, Web of Science, and Scopus databases. RESULTS Here, we have shown that the promise is increasing each year for more lead compounds for the development of a new drug against Chagas disease. CONCLUSION There is increased optimism among those working with the objective to find new drug candidates for optimal treatments against Chagas disease.
Collapse
Affiliation(s)
- Cauê B Scarim
- Sao Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, Brazil.,Lapdesf - Laboratory of Research and Development of Drugs, Araraquara, São Paulo, Brazil
| | - Chung M Chin
- Sao Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, Brazil.,Lapdesf - Laboratory of Research and Development of Drugs, Araraquara, São Paulo, Brazil
| |
Collapse
|
52
|
Quarta A, Meese T, Pieters Z, Van Breedam E, Le Blon D, Van Broeckhoven J, Hendrix S, Goossens H, Hens N, Berneman Z, Van Nieuwerburgh F, Ponsaerts P. Murine induced pluripotent stem cell-derived neuroimmune cell culture models emphasize opposite immune-effector functions of interleukin 13-primed microglia and macrophages in terms of neuroimmune toxicity. Glia 2020; 69:326-345. [PMID: 32865285 DOI: 10.1002/glia.23899] [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: 05/26/2020] [Revised: 07/28/2020] [Accepted: 07/30/2020] [Indexed: 12/19/2022]
Abstract
Cellular models of induced pluripotent stem cell (iPSC)-derived microglia and macrophages are an emerging toolbox to investigate neuroinflammation in vitro. We previously demonstrated that murine iPSC-microglia and iPSC-macrophages display phenotypical activation properties highly comparable to microglia and macrophages in vivo. Here we extended the characterization of iPSC-microglia and iPSC-macrophages with the analysis of their transcriptome profile. Next, these cellular models were employed to evaluate neuroimmune toxicity in vitro and to investigate the immune-modulatory properties of interleukin 13 (IL13), a cytokine known for its ability to protect against neuroinflammation-induced pathology by modulating microglia and macrophage activation. iPSC-microglia and iPSC-macrophages, in co-culture with astrocyte-committed neural stem cells (NSC), were (pre)treated with IL13 and stimulated with lipopolysaccharide (LPS) and interferon γ (IFNγ), to assess how IL13 modulates their inflammatory response. Additionally, the use of luciferase-expressing NSC (Luc-NSC) allowed real-time monitoring of immune-mediated neurotoxicity. Despite the known anti-inflammatory properties of IL13, iPSC-microglia primed with IL13 before LPS + IFNγ stimulation significantly increased NO secretion. This was associated with a marked reduction of the luminescence signal produced by Luc-NSC. Interestingly, we observed that IL13 signaling has a divergent functional outcome in microglia as compared to macrophages, as for the latter no major alterations in NO release and Luc-NSC viability were observed upon IL13 (pre)treatment. Finally, the striking IL13-induced upregulation of NO secretion by microglia under pro-inflammatory conditions was confirmed in vivo, where intracerebral delivery of IL13 increased inducible nitric oxide synthase mRNA expression. Concluding, we applied iPSC-derived neuroimmune cell culture models to identify distinct neuroimmune (toxicity) responses of microglia and macrophages to IL13-based immune modulation.
Collapse
Affiliation(s)
- Alessandra Quarta
- Laboratory of Experimental Hematology, University of Antwerp, Antwerp, Belgium.,Vaccine and Infectious Disease Institute (Vaxinfectio), University of Antwerp, Antwerp, Belgium
| | - Tim Meese
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Zoë Pieters
- Vaccine and Infectious Disease Institute (Vaxinfectio), University of Antwerp, Antwerp, Belgium.,Interuniversity Institute for Biostatistics and Statistical Bioinformatics (I-BioStat), Data Science Institute, Hasselt University, Hasselt, Belgium.,Centre for Health Economics Research and Modelling Infectious Diseases, University of Antwerp, Antwerp, Belgium
| | - Elise Van Breedam
- Laboratory of Experimental Hematology, University of Antwerp, Antwerp, Belgium.,Vaccine and Infectious Disease Institute (Vaxinfectio), University of Antwerp, Antwerp, Belgium
| | - Debbie Le Blon
- Laboratory of Experimental Hematology, University of Antwerp, Antwerp, Belgium.,Vaccine and Infectious Disease Institute (Vaxinfectio), University of Antwerp, Antwerp, Belgium
| | - Jana Van Broeckhoven
- Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Sven Hendrix
- Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Herman Goossens
- Vaccine and Infectious Disease Institute (Vaxinfectio), University of Antwerp, Antwerp, Belgium
| | - Niel Hens
- Vaccine and Infectious Disease Institute (Vaxinfectio), University of Antwerp, Antwerp, Belgium.,Interuniversity Institute for Biostatistics and Statistical Bioinformatics (I-BioStat), Data Science Institute, Hasselt University, Hasselt, Belgium.,Centre for Health Economics Research and Modelling Infectious Diseases, University of Antwerp, Antwerp, Belgium
| | - Zwi Berneman
- Laboratory of Experimental Hematology, University of Antwerp, Antwerp, Belgium.,Vaccine and Infectious Disease Institute (Vaxinfectio), University of Antwerp, Antwerp, Belgium
| | - Filip Van Nieuwerburgh
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Peter Ponsaerts
- Laboratory of Experimental Hematology, University of Antwerp, Antwerp, Belgium.,Vaccine and Infectious Disease Institute (Vaxinfectio), University of Antwerp, Antwerp, Belgium
| |
Collapse
|
53
|
Ding Y, Fan J, Deng L, Peng Y, Zhou B, Huang B. Evaluation of Tumor Specificity and Immunity of Thymidine Kinase-Deleted Vaccinia Virus Guang9 Strain. Onco Targets Ther 2020; 13:7683-7697. [PMID: 32801778 PMCID: PMC7415446 DOI: 10.2147/ott.s260288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 07/17/2020] [Indexed: 12/15/2022] Open
Abstract
Purpose Oncolytic viruses are emerging as promising options for clinical cancer treatment due to their inherent ability of tumor tropism and oncolytic property. Aside from tumor lysis, oncolytic viruses can induce host immune responses against tumor cells and may thus be viewed as a form of immunotherapy. Methods The attenuated vaccinia VG9-Luc, which originated from Chinese vaccinia Tian Tan strain, was constructed to express firefly luciferase for bioluminescence imaging and to disrupt the thymidine kinase gene for promoting tumor specificity. An in vivo bioluminescence imaging was performed to observe the virus distribution in live mice. The titers of neutralizing antiviral and antitumor antibodies in plasma were determined by time-resolved fluoroimmunoassay. Results Except BALB/c mice treated with intravenous virus injection, all immunocompromised and immunocompetent mice showed obvious tumor targeting ability of vaccinia VG9-Luc. Besides, host immune response activated by vaccinia VG9-Luc showed the production of antiviral and antitumor antibodies, the process of which was similar between intravenous and intratumoral viral delivery systems. The results indicated that virus infection promoted tumor-specific immunity by increasing the production of antitumor antibodies. Moreover, virus reinjection was performed and a more rapid viral clearance was observed in immunocompetent mice compared with first virus infection. Conclusion The thymidine kinase-deleted vaccinia Guang9 strain, which has the properties of tumor specificity and antitumor immunity, is a promising candidate vector for cancer therapy.
Collapse
Affiliation(s)
- Yuedi Ding
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, Jiangsu 214063, People's Republic of China
| | - Jun Fan
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, Jiangsu 214063, People's Republic of China
| | - Lili Deng
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, Jiangsu 214063, People's Republic of China
| | - Ying Peng
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, Jiangsu 214063, People's Republic of China
| | - Bin Zhou
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, Jiangsu 214063, People's Republic of China
| | - Biao Huang
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, Jiangsu 214063, People's Republic of China
| |
Collapse
|
54
|
Gaspar N, Zambito G, Dautzenberg IJC, Cramer SJ, Hoeben RC, Lowik C, Walker JR, Kirkland TA, Smith TP, van Weerden WM, de Vrij J, Mezzanotte L. NanoBiT System and Hydrofurimazine for Optimized Detection of Viral Infection in Mice-A Novel in Vivo Imaging Platform. Int J Mol Sci 2020; 21:E5863. [PMID: 32824188 DOI: 10.3390/ijms21165863] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 07/16/2020] [Revised: 07/31/2020] [Accepted: 08/03/2020] [Indexed: 12/14/2022] Open
Abstract
Reporter genes are used to visualize intracellular biological phenomena, including viral infection. Here we demonstrate bioluminescent imaging of viral infection using the NanoBiT system in combination with intraperitoneal injection of a furimazine analogue, hydrofurimazine. This recently developed substrate has enhanced aqueous solubility allowing delivery of higher doses for in vivo imaging. The small high-affinity peptide tag (HiBiT), which is only 11 amino-acids in length, was engineered into a clinically used oncolytic adenovirus, and the complementary large protein (LgBiT) was constitutively expressed in tumor cells. Infection of the LgBiT expressing cells with the HiBiT oncolytic virus will reconstitute NanoLuc in the cytosol of the cell, providing strong bioluminescence upon treatment with substrate. This new bioluminescent system served as an early stage quantitative viral transduction reporter in vitro and also in vivo in mice, for longitudinal monitoring of oncolytic viral persistence in infected tumor cells. This platform provides novel opportunities for studying the biology of viruses in animal models.
Collapse
|
55
|
Suzuki T, Kanamori T, Inouye S. [Novel Technology for Studying Insulin Secretion: Imaging and Quantitative Analysis by a Bioluminescence Method]. YAKUGAKU ZASSHI 2020; 140:969-977. [PMID: 32741870 DOI: 10.1248/yakushi.20-00012-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 11/22/2022]
Abstract
We developed a method of video-rate bioluminescence imaging to visualize proteins secreted from living cells. A protein of interest was fused to Gaussia luciferase (GLase), and the luminescence signals of secreted GLase with coelenterazine (luciferin) were visualized at a video-rate of 30-500 ms/frame by using a water-cooled EM-CCD camera. We established a subclonal rat INS-1E cell line, named iGL cells, stably expressing the fusion protein of insulin and GLase (Insulin-GLase). By stimulation with high glucose, 3D-cultured iGL cells showed synchronized oscillatory secretion of insulin for over 1 h, as similarly observed in an isolated rat pancreatic islet. In 2D-cultured iGL cells, the luminescence images indicated that synchronized insulin secretion was localized in intercellular spaces between cells. Further, the relative amount of insulin secretion from iGL cells was easily determined with a luminometer, and we demonstrated that cell-cell interaction of beta cells is fundamental to increase glucose-stimulated insulin secretion by synchronization. Thus, iGL cells would be valuable for studying oscillatory insulin secretion and evaluating anti-diabetic drugs. Our bioluminescence imaging method with GLase could be generally used for investigating protein secretion in 2D and 3D cell culture systems.
Collapse
Affiliation(s)
- Takahiro Suzuki
- Department of Biochemistry, School of Dentistry, Aichi-Gakuin University
| | - Takao Kanamori
- Department of Biochemistry, School of Dentistry, Aichi-Gakuin University
| | | |
Collapse
|
56
|
Mane MM, Cohen IJ, Ackerstaff E, Shalaby K, Ijoma JN, Ko M, Maeda M, Albeg AS, Vemuri K, Satagopan J, Moroz A, Zurita J, Shenker L, Shindo M, Nickles T, Nikolov E, Moroz MA, Koutcher JA, Serganova I, Ponomarev V, Blasberg RG. Lactate Dehydrogenase A Depletion Alters MyC-CaP Tumor Metabolism, Microenvironment, and CAR T Cell Therapy. Mol Ther Oncolytics 2020; 18:382-395. [PMID: 32913888 PMCID: PMC7452096 DOI: 10.1016/j.omto.2020.07.006] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/14/2020] [Indexed: 12/21/2022]
Abstract
To enhance human prostate-specific membrane antigen (hPSMA)-specific chimeric antigen receptor (CAR) T cell therapy in a hPSMA+ MyC-CaP tumor model, we studied and imaged the effect of lactate dehydrogenase A (LDH-A) depletion on the tumor microenvironment (TME) and tumor progression. Effective LDH-A short hairpin RNA (shRNA) knockdown (KD) was achieved in MyC-CaP:hPSMA+ Renilla luciferase (RLuc)-internal ribosome entry site (IRES)-GFP tumor cells, and changes in tumor cell metabolism and in the TME were monitored. LDH-A downregulation significantly inhibited cell proliferation and subcutaneous tumor growth compared to control cells and tumors. However, total tumor lactate concentration did not differ significantly between LDH-A knockdown and control tumors, reflecting the lower vascularity, blood flow, and clearance of lactate from LDH-A knockdown tumors. Comparing treatment responses of MyC-CaP tumors with LDH-A depletion and/or anti-hPSMA CAR T cells showed that the dominant effect on tumor growth was LDH-A depletion. With anti-hPSMA CAR T cell treatment, tumor growth was significantly slower when combined with tumor LDH-A depletion and compared to control tumor growth (p < 0.0001). The lack of a complete tumor response in our animal model can be explained in part by (1) the lower activity of human CAR T cells against hPSMA-expressing murine tumors in a murine host, and (2) a loss of hPSMA antigen from the tumor cell surface in progressive generations of tumor cells.
Collapse
Affiliation(s)
- Mayuresh M Mane
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ivan J Cohen
- Gerstner Sloan Kettering Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ellen Ackerstaff
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Khalid Shalaby
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Jenny N Ijoma
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Myat Ko
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Masatomo Maeda
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Avi S Albeg
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Kiranmayi Vemuri
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Jaya Satagopan
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Anna Moroz
- Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Skolkovo Institute of Science and Technology, 143026 Moscow, Russia
| | - Juan Zurita
- Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Larissa Shenker
- Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Masahiro Shindo
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Tanner Nickles
- Gerstner Sloan Kettering Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ekaterina Nikolov
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Maxim A Moroz
- Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Jason A Koutcher
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Weill Cornell Medical College, Cornell University, New York, NY 10065, USA
| | - Inna Serganova
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Vladimir Ponomarev
- Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ronald G Blasberg
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| |
Collapse
|
57
|
Ahmed R, Ye J, Gerber SA, Linehan DC, Doyley MM. Preclinical Imaging Using Single Track Location Shear Wave Elastography: Monitoring the Progression of Murine Pancreatic Tumor Liver Metastasis In Vivo. IEEE Trans Med Imaging 2020; 39:2426-2439. [PMID: 32012006 PMCID: PMC7329602 DOI: 10.1109/tmi.2020.2971422] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Recently, researchers have discovered the direct impact of the tumor mechanical environment on the growth, drug uptake and prognosis of tumors. While estimating the mechanical parameters (solid stress, fluid pressure, stiffness) can aid in the treatment planning and monitoring, most of these parameters cannot be quantified noninvasively. Shear wave elastography (SWE) has shown promise as a means of noninvasively measuring the stiffness of soft tissue. However, stiffness is still not a recognized imaging biomarker. While SWE has been shown to be capable of measuring tumor stiffness in humans, much important research is done in small animal preclinical models, where tumors are often too small for the resolution of traditional SWE tools. Single-track location SWE (STL-SWE) has previously been shown to overcome the fundamental resolution limit of SWE imposed by ultrasound speckle, which may make it suitable for preclinical imaging. Using STL-SWE, in this work, we demonstrate, for the first time, that the stiffness changes occurring inside metastatic murine pancreatic tumors can be monitored over long time scales (up to 9 weeks). To prevent the respiration motion from degrading the STL-SWE estimates, we developed a real-time software-based respiration gating scheme that we implemented on a Verasonics ultrasound imaging system. By imaging the liver of three healthy mice and performing correlation analysis, we confirmed that the respiration-gated STL-SWE data was free from motion corruption. By performing coregistered power-doppler imaging, we found that the local variability in liver shear wave speed (SWS) measurements increased from 5.4% to 9.9% due to blood flow. We performed a longitudinal study using a murine model of pancreatic cancer liver metastasis to assess the temporal changes (over nine weeks) in SWS in two groups: a controlled group receiving no treatment (n=8), and an experimental group (n=6) treated with Gemcitabine, a chemotherapy agent. We independently evaluated tumor burden using bioluminescence imaging (BLI). The initial and endpoint SWS measurements were statistically different (p<0.05). Additionally, when the liver SWS exceeded 2.5 ± 0.3 and 2.73 ± 0.34 m/s in untreated and treated mice, respectively, the death of the mice was imminent within approximately 10 days. The time taken for the SWS to exceed the thresholds was 17 days (on average) longer in Gemcitabine treated mice compared to the untreated ones. The survival statistics corroborated the effectiveness of Gemcitabine. Spearman correlation analysis revealed a monotonic relationship between SWE measurements (SWS) and BLI measurements (radiance) for tumors whose radiance exceeded 1×107 photons/s/cm2/sr. Longitudinal measurements on the liver of four healthy mice revealed a maximum coefficient of variation of 11.4%. The results of this investigation demonstrate that with appropriate gating, researchers can use STL-SWE for small animal imaging and perform longitudinal studies using preclinical cancer models.
Collapse
|
58
|
Vanherp L, Poelmans J, Hillen A, Janbon G, Brock M, Lagrou K, Vande Velde G, Himmelreich U. The Added Value of Longitudinal Imaging for Preclinical In Vivo Efficacy Testing of Therapeutic Compounds against Cerebral Cryptococcosis. Antimicrob Agents Chemother 2020; 64:e00070-20. [PMID: 32284382 DOI: 10.1128/AAC.00070-20] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/04/2020] [Indexed: 02/07/2023] Open
Abstract
Brain infections with Cryptococcus neoformans are associated with significant morbidity and mortality. Cryptococcosis typically presents as meningoencephalitis or fungal mass lesions called cryptococcomas. Despite frequent in vitro discoveries of promising novel antifungals, the clinical need for drugs that can more efficiently treat these brain infections remains. A crucial step in drug development is the evaluation of in vivo drug efficacy in animal models. This mainly relies on survival studies or postmortem analyses in large groups of animals, but these techniques only provide information on specific organs of interest at predefined time points. In this proof-of-concept study, we validated the use of noninvasive preclinical imaging to obtain longitudinal information on the therapeutic efficacy of amphotericin B or fluconazole monotherapy in meningoencephalitis and cryptococcoma mouse models. Bioluminescence imaging enabled the rapid in vitro and in vivo evaluation of drug efficacy, while complementary high-resolution anatomical information obtained by magnetic resonance imaging of the brain allowed a precise assessment of the extent of infection and lesion growth rates. We demonstrated a good correlation between both imaging readouts and the fungal burden in various organs. Moreover, we identified potential pitfalls associated with the interpretation of therapeutic efficacy based solely on postmortem studies, demonstrating the added value of this noninvasive dual imaging approach compared to standard mortality curves or fungal load endpoints. This novel preclinical imaging platform provides insights in the dynamic aspects of the therapeutic response and facilitates a more efficient and accurate translation of promising antifungal compounds from bench to bedside.
Collapse
|
59
|
Mowday AM, Lieuwes NG, Biemans R, Marcus D, Rezaeifar B, Reniers B, Verhaegen F, Theys J, Dubois LJ. Use of a Luciferase-Expressing Orthotopic Rat Brain Tumor Model to Optimize a Targeted Irradiation Strategy for Efficacy Testing with Temozolomide. Cancers (Basel) 2020; 12:E1585. [PMID: 32549357 DOI: 10.3390/cancers12061585] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 05/29/2020] [Accepted: 06/11/2020] [Indexed: 01/04/2023] Open
Abstract
Glioblastoma multiforme (GBM) is a common and aggressive malignant brain cancer with a mean survival time of approximately 15 months after initial diagnosis. Currently, the standard-of-care (SOC) treatment for this disease consists of radiotherapy (RT) with concomitant and adjuvant temozolomide (TMZ). We sought to develop an orthotopic preclinical model of GBM and to optimize a protocol for non-invasive monitoring of tumor growth, allowing for determination of the efficacy of SOC therapy using a targeted RT strategy combined with TMZ. A strong correlation (r = 0.80) was observed between contrast-enhanced (CE)-CT-based volume quantification and bioluminescent (BLI)-integrated image intensity when monitoring tumor growth, allowing for BLI imaging as a substitute for CE-CT. An optimized parallel-opposed single-angle RT beam plan delivered on average 96% of the expected RT dose (20, 30 or 60 Gy) to the tumor. Normal tissue on the ipsilateral and contralateral sides of the brain were spared 84% and 99% of the expected dose, respectively. An increase in median survival time was demonstrated for all SOC regimens compared to untreated controls (average 5.2 days, p < 0.05), but treatment was not curative, suggesting the need for novel treatment options to increase therapeutic efficacy.
Collapse
|
60
|
Xu X, Guo Y, Du G, Liu H, Wang L, Chen D. Bioluminescence Imaging-Based Assessment of the Anti-Triple-Negative Breast Cancer and NF-Kappa B Pathway Inhibition Activity of Britanin. Front Pharmacol 2020; 11:575. [PMID: 32431613 PMCID: PMC7215071 DOI: 10.3389/fphar.2020.00575] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/15/2020] [Indexed: 12/31/2022] Open
Abstract
Britanin has been reported to have therapeutic effects on neurodegenerative and inflammation-based diseases. However, whether it is involved in the regulation of triple-negative breast cancer development has not been elucidated. In this study, we investigated the anti-tumor activity against triple-negative breast cancer tumor of Britanin by bioluminescence imaging in vivo using athymic (nu/nu) mice implanted with MDA-MB-231 and SUM-159 cells expressing a luciferase reporter gene, and explored the anti-tumor mechanism of Britanin. The results showed that Britanin treatment inhibited triple-negative breast cancer cell proliferation in vivo, and Cell Counting Kit-8 (IC50 values are 4.27 and 5.05 μM) and colony formation tests (P < 0.001) confirmed this result. Transwell assays were conducted to verify that Britanin treatment inhibited cell migration and invasion (P < 0.001). Apoptosis was determined by TdT-mediated dUTP nick-end labeling method. Western blot and qRT-PCR analysis showed that Britanin treatment caused a decrease in the member expression of NF-kappa B signaling pathway. Computational modeling showed that Britanin could directly bind to a p-65 core region composed of Cys38, Cys120, and Gln128 residues. The results showed that the inhibitory mechanisms of Britanin on cancer cells may be by ways of inhibiting the NF-kappa B pathway. In addition, bioluminescence imaging screening system is useful for accelerating the application of Britanin in the antitumor field, and provides a useful tool for evaluating the phytochemicals efficacy in inhibiting cancer cell proliferation in animal models.
Collapse
Affiliation(s)
- Xinyi Xu
- Engineering Research Center of Molecular and Neuroimaging, Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, China
| | - Yingying Guo
- Engineering Research Center of Molecular and Neuroimaging, Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, China
| | - Getao Du
- Engineering Research Center of Molecular and Neuroimaging, Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, China
| | - Huifang Liu
- Engineering Research Center of Molecular and Neuroimaging, Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, China
| | - Lin Wang
- School of Information Sciences and Technology, Northwest University, Xi'an, China
| | - Dan Chen
- Engineering Research Center of Molecular and Neuroimaging, Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, China
| |
Collapse
|
61
|
Schomann T, Mezzanotte L, de Groot JCMJ, Löwik CWGM, Frijns JHM, Huisman MA. Imaging Bioluminescent Exogenous Stem Cells in the Intact Guinea Pig Cochlea. Anat Rec (Hoboken) 2020; 303:427-440. [PMID: 30635981 PMCID: PMC7065152 DOI: 10.1002/ar.24068] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 06/25/2018] [Accepted: 08/27/2018] [Indexed: 11/07/2022]
Abstract
Stem-cell-based therapy may be used to replace damaged or lost neurons in the cochlear nerve of patients suffering from severe-to-profound sensorineural hearing loss. In order to achieve functional recovery in future clinical trials, knowledge about survival of grafted cells and their differentiation into functional neurons is a prerequisite. This calls for non-invasive in vivo visualization of cells and long-term monitoring of their survival and fate after cochlear transplantation. We have investigated if molecular optical imaging enables visualization of exogenous cells in the intact cochlea of guinea pig cadaver heads. Transduced (stem) cells, stably co-expressing fluorescent (copGFP) and bioluminescent (Luc2) reporter molecules, were injected into the internal auditory meatus or directly into the cochlea through the round window. After injection of the cells into the internal auditory meatus, a bright bioluminescent signal was observed in the cavum conchae of the auricle, indicating that light generated by Luc2 is passing through the tympanic membrane and the external auditory meatus. Similar results were obtained after injection of the cells through the round window membrane, either directly into the scala tympani or in Rosenthal's canal within the modiolus of the basal cochlear turn. Imaging of the auditory bulla demonstrated that the bioluminescent signal passes through the tympanic membrane and crevices in the bony wall of the bulla. After opening the auditory bulla, the bioluminescent signal was emanating from the round window. This is the first study demonstrating that bioluminescence imaging enables visualization of luciferase-expressing cells injected into the intact guinea pig cochlea. Anat Rec, 303:427-440, 2020. © 2019 The Authors. The Anatomical Record published by Wiley Periodicals, Inc. on behalf of American Association of Anatomists.
Collapse
Affiliation(s)
- Timo Schomann
- Auditory Neurobiology Laboratory, Department of Otorhinolaryngology and Head and Neck SurgeryLeiden University Medical CenterLeidenThe Netherlands
| | - Laura Mezzanotte
- Optical Molecular Imaging, Department of RadiologyErasmus Medical Center RotterdamRotterdamThe Netherlands
| | - John C. M. J. de Groot
- Auditory Neurobiology Laboratory, Department of Otorhinolaryngology and Head and Neck SurgeryLeiden University Medical CenterLeidenThe Netherlands
| | - Clemens W. G. M. Löwik
- Optical Molecular Imaging, Department of RadiologyErasmus Medical Center RotterdamRotterdamThe Netherlands
| | - Johan H. M. Frijns
- Auditory Neurobiology Laboratory, Department of Otorhinolaryngology and Head and Neck SurgeryLeiden University Medical CenterLeidenThe Netherlands
| | - Margriet A. Huisman
- Auditory Neurobiology Laboratory, Department of Otorhinolaryngology and Head and Neck SurgeryLeiden University Medical CenterLeidenThe Netherlands
| |
Collapse
|
62
|
de Vries CR, Sweere JM, Ishak H, Sunkari V, Bach MS, Liu D, Manasherob R, Bollyky PL. A Delayed Inoculation Model of Chronic Pseudomonas aeruginosa Wound Infection. J Vis Exp 2020:10.3791/60599. [PMID: 32150161 PMCID: PMC7309497 DOI: 10.3791/60599] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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] [Indexed: 01/02/2023] Open
Abstract
Pseudomonas aeruginosa (P. aeruginosa) is a major nosocomial pathogen of increasing relevance to human health and disease, particularly in the setting of chronic wound infections in diabetic and hospitalized patients. There is an urgent need for chronic infection models to aid in the investigation of wound pathogenesis and the development of new therapies against this pathogen. Here, we describe a protocol that uses delayed inoculation 24 hours after full-thickness excisional wounding. The infection of the provisional wound matrix present at this time forestalls either rapid clearance or dissemination of infection and instead establishes chronic infection lasting 7-10 days without the need for implantation of foreign materials or immune suppression. This protocol mimics a typical temporal course of post-operative infection in humans. The use of a luminescent P. aeruginosa strain (PAO1:lux) allows for quantitative daily assessment of bacterial burden for P. aeruginosa wound infections. This novel model may be a useful tool in the investigation of bacterial pathogenesis and the development of new therapies for chronic P. aeruginosa wound infections.
Collapse
Affiliation(s)
| | - Johanna M Sweere
- Division of Infectious Diseases, School of Medicine, Stanford University; Stanford Immunology, Stanford University
| | - Heather Ishak
- Division of Infectious Diseases, School of Medicine, Stanford University; Palo Alto Veterans Institute of Research
| | | | - Michelle S Bach
- Division of Infectious Diseases, School of Medicine, Stanford University
| | - Dan Liu
- Division of Infectious Diseases, School of Medicine, Stanford University
| | - Robert Manasherob
- Division of Infectious Diseases, School of Medicine, Stanford University
| | - Paul L Bollyky
- Division of Infectious Diseases, School of Medicine, Stanford University; Stanford Immunology, Stanford University
| |
Collapse
|
63
|
Labitzky V, Baranowsky A, Maar H, Hanika S, Starzonek S, Ahlers AK, Stübke K, Koziolek EJ, Heine M, Schäfer P, Windhorst S, Jücker M, Riecken K, Amling M, Schinke T, Schumacher U, Valentiner U, Lange T. Modeling Spontaneous Bone Metastasis Formation of Solid Human Tumor Xenografts in Mice. Cancers (Basel) 2020; 12:E385. [PMID: 32046143 DOI: 10.3390/cancers12020385] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 01/10/2020] [Revised: 02/02/2020] [Accepted: 02/05/2020] [Indexed: 12/18/2022] Open
Abstract
The majority of cancer-related deaths are due to hematogenous metastases, and the bone marrow (BM) represents one of the most frequent metastatic sites. To study BM metastasis formation in vivo, the most efficient approach is based on intracardiac injection of human tumor cells into immunodeficient mice. However, such a procedure circumvents the early steps of the metastatic cascade. Here we describe the development of xenograft mouse models (balb/c rag2-/- and severe combined immunodeficient (SCID)), in which BM metastases are spontaneously derived from subcutaneous (s.c.) primary tumors (PTs). As verified by histology, the described methodology including ex vivo bioluminescence imaging (BLI) even enabled the detection of micrometastases in the BM. Furthermore, we established sublines from xenograft primary tumors (PTs) and corresponding BM (BM) metastases using LAN-1 neuroblastoma xenografts as a first example. In vitro "metastasis" assays (viability, proliferation, transmigration, invasion, colony formation) partially indicated pro-metastatic features of the LAN-1-BM compared to the LAN-1-PT subline. Unexpectedly, after s.c. re-injection into mice, LAN-1-BM xenografts developed spontaneous BM metastases less frequently than LAN-1-PT xenografts. This study provides a novel methodologic approach for modelling the spontaneous metastatic cascade of human BM metastasis formation in mice. Moreover, our data indicate that putative bone-metastatic features get rapidly lost upon routine cell culture.
Collapse
|
64
|
Fiedorowicz K, Rozwadowska N, Zimna A, Malcher A, Tutak K, Szczerbal I, Nowicka-Bauer K, Nowaczyk M, Kolanowski TJ, Łabędź W, Kubaszewski Ł, Kurpisz M. Tissue-specific promoter-based reporter system for monitoring cell differentiation from iPSCs to cardiomyocytes. Sci Rep 2020; 10:1895. [PMID: 32024875 PMCID: PMC7002699 DOI: 10.1038/s41598-020-58050-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 11/06/2019] [Indexed: 12/14/2022] Open
Abstract
The possibility of using stem cell-derived cardiomyocytes opens a new platform for modeling cardiac cell differentiation and disease or the development of new drugs. Progress in this field can be accelerated by high-throughput screening (HTS) technology combined with promoter reporter system. The goal of the study was to create and evaluate a responsive promoter reporter system that allows monitoring of iPSC differentiation towards cardiomyocytes. The lentiviral promoter reporter system was based on troponin 2 (TNNT2) and alpha cardiac actin (ACTC) with firefly luciferase and mCherry, respectively. The system was evaluated in two in vitro models. First, system followed the differentiation of TNNT2-luc-T2A-Puro-mCMV-GFP and hACTC-mcherry-WPRE-EF1-Neo from transduced iPSC line towards cardiomyocytes and revealed the significant decrease in both inserts copy number during the prolonged in vitro cell culture (confirmed by I-FISH, ddPCR, qPCR). Second, differentiated and contracting control cardiomyocytes (obtained from control non-reporter transduced iPSCs) were subsequently transduced with TNNT2-luc-T2A-Puro-CMV-GFP and hACTC-mcherry-WPRE-EF1-Neo lentiviruses to observe the functionality of obtained cardiomyocytes. Our results indicated that the reporter modified cell lines can be used for HTS applications, but it is essential to monitor the stability of the reporter sequence during extended cell in vitro culture.
Collapse
Affiliation(s)
| | | | - Agnieszka Zimna
- Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland
| | - Agnieszka Malcher
- Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland
| | - Katarzyna Tutak
- Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland
| | - Izabela Szczerbal
- Department of Genetics and Animal Breeding, Poznan University of Life Sciences, Poznan, Poland
| | | | | | | | - Wojciech Łabędź
- Department of Spondyloortopaedics and Biomechanics of the Spine, W. Dega University Hospital, Poznan University of Medical Sciences, Poznan, Poland
| | - Łukasz Kubaszewski
- Department of Spondyloortopaedics and Biomechanics of the Spine, W. Dega University Hospital, Poznan University of Medical Sciences, Poznan, Poland
| | - Maciej Kurpisz
- Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland.
| |
Collapse
|
65
|
De la Vega RE, Scheu M, Brown LA, Evans CH, Ferreira E, Porter RM. Specific, Sensitive, and Stable Reporting of Human Mesenchymal Stromal Cell Chondrogenesis. Tissue Eng Part C Methods 2020; 25:176-190. [PMID: 30727864 DOI: 10.1089/ten.tec.2018.0295] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 01/15/2023] Open
Abstract
IMPACT STATEMENT The promoter characterized in this study has been made accessible as a resource for the skeletal tissue engineering and regenerative medicine community. When combined with suitable reporter vectors, the resulting tools can be used for noninvasive and/or high-throughput screening of test conditions for stimulating chondrogenesis by candidate stem/progenitor cells. As demonstrated in this study, they can also be used with small animal imaging platforms to monitor the chondrogenic activity of implanted progenitors within orthotopic models of bone and cartilage repair.
Collapse
Affiliation(s)
- Rodolfo E De la Vega
- 1 Department of Orthopaedic Surgery, Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, Massachusetts.,2 Department of Orthopaedic Surgery, Harvard Medical School, Boston, Massachusetts
| | - Maximiliano Scheu
- 1 Department of Orthopaedic Surgery, Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, Massachusetts.,2 Department of Orthopaedic Surgery, Harvard Medical School, Boston, Massachusetts.,3 Department of Orthopaedic Surgery, Clínica Alemana de Santiago, Universidad del Desarrollo, Vitacura, Chile
| | - Lennart A Brown
- 1 Department of Orthopaedic Surgery, Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, Massachusetts.,2 Department of Orthopaedic Surgery, Harvard Medical School, Boston, Massachusetts
| | - Christopher H Evans
- 1 Department of Orthopaedic Surgery, Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, Massachusetts.,2 Department of Orthopaedic Surgery, Harvard Medical School, Boston, Massachusetts
| | - Elisabeth Ferreira
- 1 Department of Orthopaedic Surgery, Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, Massachusetts.,2 Department of Orthopaedic Surgery, Harvard Medical School, Boston, Massachusetts
| | - Ryan M Porter
- 1 Department of Orthopaedic Surgery, Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, Massachusetts.,2 Department of Orthopaedic Surgery, Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
66
|
Abstract
Selenocysteine (Sec), a vital member of reactive selenium species, is closely implicated in diverse pathophysiological states, including cancer, cardiovascular diseases, diabetes, neurodegenerative diseases, and male infertility. Monitoring Sec in vivo is of significant interest for understanding the physiological roles of Sec and the mechanisms of human diseases associated with abnormal levels of Sec. However, no bioluminescence probe for real-time monitoring of Sec in vivo has been reported. Herein, we present a novel bioluminescent probe BF-1 as an effective tool for the determination of Sec in living cells and in vivo for the first time. BF-1 has advantages of high sensitivity (a detection limit of 8 nM), remarkable bioluminescence enhancement (580-fold), reasonable selectivity, low cytotoxicity, and high signal-to-noise ratio imaging feasibility of Sec in living cells and mice. More importantly, BF-1 affords high sensitivity for monitoring Sec stimulated by Na2SeO3 in tumor-bearing mice. These results demonstrate that our new probe could serve as a powerful tool to selectively monitor Sec in vivo, thus providing a valuable approach for exploring the physiological and pathological functions and anticancer mechanisms of selenium.
Collapse
Affiliation(s)
- Ling Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221002, PR China
| | - Yanfen Shi
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221002, PR China
| | - Zhijia Sheng
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221002, PR China
| | - Yiran Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221002, PR China
| | - Xiaoning Kai
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221002, PR China
| | - Minyong Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology, School of Pharmacy, Shandong University, Jinan 250012, PR China
| | - Xiaoxing Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221002, PR China
| |
Collapse
|
67
|
Bao H, Xia Y, Yu C, Ning X, Liu X, Fu H, Chen Z, Huang J, Zhang Z. CT/Bioluminescence Dual-Modal Imaging Tracking of Mesenchymal Stem Cells in Pulmonary Fibrosis. Small 2019; 15:e1904314. [PMID: 31565866 DOI: 10.1002/smll.201904314] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/06/2019] [Indexed: 06/10/2023]
Abstract
Human mesenchymal stem cells (hMSCs), due to their immune regulation and collateral secretion effects, are currently explored for potential therapy of idiopathic pulmonary fibrosis (IPF). Understanding the migration, homing, functions, and survival of transplanted hMSCs in vivo is critical to successful IPF treatment. Therefore, it is highly desired to develop noninvasive and effective imaging technologies to track the transplanted hMSCs, providing experimental basis for improving the efficacy of hMSCs in the treatment of IPF. The rational design and development of a dual-labeling strategy are reported by integrating gold nanoparticle (AuNP)-based computed tomography (CT) nanotracers and red-emitting firefly luciferase (RfLuc)-based bioluminescence (BL) tags for CT/BL multimodal imaging tracking of the transplanted hMSCs in a murine model of IPF. In this approach, the CT nanotracer is prepared by sequential coupling of AuNPs with polyethylene glycol and trans-activator of transcription (TAT) peptide (Au@TAT), and employed it to monitor the location and distribution of the transplanted hMSCs in vivo by CT imaging, while RfLuc is used to monitor hMSCs viability by BLI. This facile strategy allows for visualization of the transplanted hMSCs in vivo, thereby enabling profound understanding of the role of hMSCs in the IPF treatment, and advancing stem cell-based regenerative medicine.
Collapse
Affiliation(s)
- Hongying Bao
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China
| | - Yuyang Xia
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Chenggong Yu
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Xinyu Ning
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Xiaoyun Liu
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Han Fu
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Zhongjin Chen
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Jie Huang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Zhijun Zhang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| |
Collapse
|
68
|
Subbarayan R, Barathidasan R, Raja STK, Arumugam G, Kuruvilla S, Shanthi P, Ranga Rao S. Human gingival derived neuronal cells in the optimized caffeic acid hydrogel for hemitransection spinal cord injury model. J Cell Biochem 2019; 121:2077-2088. [PMID: 31646674 DOI: 10.1002/jcb.29452] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 10/08/2019] [Indexed: 01/17/2023]
Abstract
Spinal cord injury induces scar formation causes axonal damage that leads to the degeneration of axonal function. Still, there is no robust conceptual design to regenerate the damaged axon after spinal injury. Therefore, the present study demonstrates that human gingival derived neuronal stem cells (GNSCs) transplants in the injectable caffeic acid bioconjugated hydrogel (CBGH) helps to bridge the cavity and promote the engraftment and repopulation of transplants in the injured spinal tissue. Our study reports that the bioluminescence imaging in vivo imaging system (IVIS) provides a satisfactory progression in CBGH-GNSCs transplants compare to lesion control and CBGH alone. Immune regulators interleukin-6 (IL-6), tumor necrosis factor-α, neutrophil elastase are decreased, IL-10 is increased. Likewise, immunostaining (TAU/TUJ-1, SOX-2/NeuN, MAP-2/PSD93, NSE, S100b, and GFAP) shown repopulated cells. Also, TRA-1-81 expression confirms the absence of immune rejection in the CBGH-GNSCs transplants. However, locomotor recovery test, gene (IL-6, CASPASE3, p14-ARF, VEGF, LCAM, BDNF, NT3, NGN2, TrKc, FGF2, Sox-2, TUJ-1, MAP-2, Nestin, and NeuN) and protein expression (TAU, TUJ-1, SOX-2 MAP-2, PSD93, NeuN, TRA-1-81, GFAP, TAU, and MBP) shows functional improvements in the CBGH-GNSCs group. Further, GABA and glutamine level demonstrates the new synaptic vesicle formation. Hence, the CBGH scaffold enhances GNSCs transplants to restore the injured spinal tissue.
Collapse
Affiliation(s)
- Rajasekaran Subbarayan
- Centre for Regenerative Medicine and Stem Cell Research, Central Research Facility, Sri Ramachandra Medical College and Research Institute, Chennai, India
| | - Rajamani Barathidasan
- Centre for toxicology and Developmental Research (CEFT), Sri Ramachandra Medical College and Research Institute, Chennai, India
| | - Selvaraj T K Raja
- Biological Material Laboratory, Central Leather Research Institute Adyar, Chennai, Tamil Nadu, India
| | - Gnanamani Arumugam
- Biological Material Laboratory, Central Leather Research Institute Adyar, Chennai, Tamil Nadu, India
| | | | - Palanivelu Shanthi
- Department of Pathology, Dr ALM PGIBMS, University of Madras Taramani Campus, Chennai, India
| | - Suresh Ranga Rao
- Department of Periodontology and Implantology, Faculty of Dental Sciences and Centre for Regenerative Medicine and Stem Cell Research, Sri Ramachandra Medical College and Research Institute, Chennai, India
| |
Collapse
|
69
|
Kallmeyer K, André-Lévigne D, Baquié M, Krause KH, Pepper MS, Pittet-Cuénod B, Modarressi A. Fate of systemically and locally administered adipose-derived mesenchymal stromal cells and their effect on wound healing. Stem Cells Transl Med 2019; 9:131-144. [PMID: 31613054 PMCID: PMC6954716 DOI: 10.1002/sctm.19-0091] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 08/27/2019] [Indexed: 12/11/2022] Open
Abstract
There is increasing interest in the use of adipose‐derived mesenchymal stromal cells (ASCs) for wound repair. As the fate of administered cells is still poorly defined, we aimed to establish the location, survival, and effect of ASCs when administered either systemically or locally during wound repair under physiological conditions. To determine the behavior of ASCs, a rat model with wounds on the dorsal aspect of the hind paws was used and two treatment modes were assessed: ASCs administered systemically into the tail vein or locally around the wound. ASCs were transduced to express both firefly luciferase (Fluc) and green fluorescent protein to enable tracking by bioluminescence imaging and immunohistological analysis. Systemically administered ASCs were detected in the lungs 3 hours after injection with a decrease in luminescent signal at 48 hours and signal disappearance from 72 hours. No ASCs were detected in the wound. Locally administered ASCs remained strongly detectable for 7 days at the injection site and became distributed within the wound bed as early as 24 hours post injection with a significant increase observed at 72 hours. Systemically administered ASCs were filtered out in the lungs, whereas ASCs administered locally remained and survived not only at the injection site but were also detected within the wound bed. Both treatments led to enhanced wound closure. It appears that systemically administered ASCs have the potential to enhance wound repair distally from their site of entrapment in the lungs whereas locally administered ASCs enhanced wound repair as they became redistributed within the wound bed.
Collapse
Affiliation(s)
- Karlien Kallmeyer
- Department of Plastic, Reconstructive & Aesthetic Surgery, University Hospitals of Geneva, University of Geneva, Geneva, Switzerland.,Institute for Cellular and Molecular Medicine (ICMM), Department of Immunology, and SAMRC Extramural Unit for Stem Cell Research and Therapy, University of Pretoria, Pretoria, South Africa
| | - Dominik André-Lévigne
- Department of Plastic, Reconstructive & Aesthetic Surgery, University Hospitals of Geneva, University of Geneva, Geneva, Switzerland
| | | | - Karl-Heinz Krause
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Michael S Pepper
- Institute for Cellular and Molecular Medicine (ICMM), Department of Immunology, and SAMRC Extramural Unit for Stem Cell Research and Therapy, University of Pretoria, Pretoria, South Africa.,Department of Human Genetics and Development, University of Geneva, Geneva, Switzerland
| | - Brigitte Pittet-Cuénod
- Department of Plastic, Reconstructive & Aesthetic Surgery, University Hospitals of Geneva, University of Geneva, Geneva, Switzerland
| | - Ali Modarressi
- Department of Plastic, Reconstructive & Aesthetic Surgery, University Hospitals of Geneva, University of Geneva, Geneva, Switzerland
| |
Collapse
|
70
|
Amoasii L, Li H, Zhang Y, Min YL, Sanchez-Ortiz E, Shelton JM, Long C, Mireault AA, Bhattacharyya S, McAnally JR, Bassel-Duby R, Olson EN. In vivo non-invasive monitoring of dystrophin correction in a new Duchenne muscular dystrophy reporter mouse. Nat Commun 2019; 10:4537. [PMID: 31586095 PMCID: PMC6778191 DOI: 10.1038/s41467-019-12335-x] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 08/20/2019] [Indexed: 12/24/2022] Open
Abstract
Duchenne muscular dystrophy (DMD) is a fatal genetic disorder caused by mutations in the dystrophin gene. To enable the non-invasive analysis of DMD gene correction strategies in vivo, we introduced a luciferase reporter in-frame with the C-terminus of the dystrophin gene in mice. Expression of this reporter mimics endogenous dystrophin expression and DMD mutations that disrupt the dystrophin open reading frame extinguish luciferase expression. We evaluated the correction of the dystrophin reading frame coupled to luciferase in mice lacking exon 50, a common mutational hotspot, after delivery of CRISPR/Cas9 gene editing machinery with adeno-associated virus. Bioluminescence monitoring revealed efficient and rapid restoration of dystrophin protein expression in affected skeletal muscles and the heart. Our results provide a sensitive non-invasive means of monitoring dystrophin correction in mouse models of DMD and offer a platform for testing different strategies for amelioration of DMD pathogenesis.
Collapse
Affiliation(s)
- Leonela Amoasii
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, Sen. Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, Watertown, MA, 02472, USA
- Exonics Therapeutics, 490 Arsenal Way, Watertown, MA, 02472, USA
| | - Hui Li
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, Sen. Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, Watertown, MA, 02472, USA
| | - Yu Zhang
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, Sen. Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, Watertown, MA, 02472, USA
| | - Yi-Li Min
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, Sen. Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, Watertown, MA, 02472, USA
- Exonics Therapeutics, 490 Arsenal Way, Watertown, MA, 02472, USA
| | - Efrain Sanchez-Ortiz
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, Sen. Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, Watertown, MA, 02472, USA
| | - John M Shelton
- Department of Internal Medicine, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Chengzu Long
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, Sen. Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, Watertown, MA, 02472, USA
- Leon H. Charney Division of Cardiology, New York University School of Medicine, New York, NY, 10016, USA
| | - Alex A Mireault
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, Sen. Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, Watertown, MA, 02472, USA
| | - Samadrita Bhattacharyya
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, Sen. Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, Watertown, MA, 02472, USA
| | - John R McAnally
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, Sen. Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, Watertown, MA, 02472, USA
| | - Rhonda Bassel-Duby
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, Sen. Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, Watertown, MA, 02472, USA
| | - Eric N Olson
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, Sen. Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, Watertown, MA, 02472, USA.
| |
Collapse
|
71
|
Yang J, Lv K, Sun J, Guan J. Anti-tumor effects of engineered mesenchymal stem cells in colon cancer model. Cancer Manag Res 2019; 11:8443-8450. [PMID: 31571999 PMCID: PMC6755954 DOI: 10.2147/cmar.s209880] [Citation(s) in RCA: 10] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 08/13/2019] [Indexed: 12/20/2022] Open
Abstract
Background Cell-based gene therapy is considered as a promising strategy for the treatment of human malignancy. In many different types of cancer, mesenchymal stem cells (MSCs) are observed as valuable and potential anti-cancer agents. However, the exact mechanisms of MSCs involved in tumor microenvironment are not well understood. Aim Our aims are to elucidate the MSCs-mediated tumor microenvironment. Materials and methods In this study, colon cancer model was established by injecting the HT29 cells into the subcutaneous of right axilla of nude mice. We applied the human placenta-derived MSCs (hP-MSCs) armed with a double fusion gene containing the herpes simplex virus truncated thymidine kinase and firefly luciferase for treatment of colon cancer on days 10, 15, and 20 after HT29 cells injection. Molecular imaging methods were used for real-time imaging tumor progression and tracking transplanted hP-MSCs by bioluminescence imaging. Furthermore, proliferation and apoptosis-related proteins levels in colon cancer tissues were examined by immunofluorescence and Western blotting. Results Our results demonstrated that the administration of engineered hP-MSCs significantly inhibited the tumors and this effect was enhanced by ganciclovir application. Further analysis demonstrated the anti-tumor effect of engineered hP-MSCs in vivo depended on inhibiting tumor proliferation and inducing tumor apoptosis. Conclusion Collectively, this work showed that engineered hP-MSCs could inhibit colon cancer progression and metastasis by inducing tumor cell death and suppressing proliferation.
Collapse
Affiliation(s)
- Jianying Yang
- Department of Emergency, Anhui No. 2 Provincial People's Hospital, Hefei, People's Republic of China
| | - Kui Lv
- Department of Emergency, Anhui No. 2 Provincial People's Hospital, Hefei, People's Republic of China
| | - Junfeng Sun
- Department of Emergency, Anhui No. 2 Provincial People's Hospital, Hefei, People's Republic of China
| | - Jianguo Guan
- Department of Emergency, Anhui No. 2 Provincial People's Hospital, Hefei, People's Republic of China
| |
Collapse
|
72
|
Zhao Z, Dai J, Yu Y, Zhang Q, Liu S, Huang G, Zhang Z, Chen T, Pan R, Lu L, Zhang W, Liao W, Lu X. Non-invasive Bioluminescence Monitoring of Hepatocellular Carcinoma Therapy in an HCR Mouse Model. Front Oncol 2019; 9:864. [PMID: 31572672 PMCID: PMC6749040 DOI: 10.3389/fonc.2019.00864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 02/26/2019] [Accepted: 08/21/2019] [Indexed: 12/12/2022] Open
Abstract
Animal models play crucial roles in the development of anticancer therapeutics. The ability to quickly assess the localized primary hepatocellular carcinoma (HCC) status in a non-invasive manner would significantly improve the effectiveness of anti-HCC therapeutic studies. However, to date, animal models with this advantage are extremely scarce. In this study, we developed a novel animal model for the fast assessment of drug efficacy against primary HCC in vivo. HCC was induced in immunocompetent hepatocarcinogenesis reporter (HCR) mice by diethylnitrosamine (DEN) injection and confirmed by histopathological staining. Using the bioluminescence imaging (BLI) technique, HCC progression was longitudinally visualized and monitored in a non-invasive way. Tests of two clinical drugs showed that both sorafenib and oxaliplatin significantly inhibited the BLI signal in mouse liver in a dose-dependent manner. The in vivo intensity of BLI signals was highly consistent with the final tumor burden status in mouse liver after drug treatment. The inhibitory effect of anti-HCC drugs was accurately evaluated through in vivo BLI intensity detection. Our study successfully established a bioluminescence mouse model for non-invasive real-time monitoring of HCC therapy, and this HCR mouse model would be a useful tool for potential anti-HCC drug screening and new therapeutic strategy development.
Collapse
Affiliation(s)
- Zhu Zhao
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Juji Dai
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Yan Yu
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Qian Zhang
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Sai Liu
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Guanmeng Huang
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Zheng Zhang
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Tianke Chen
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Rulu Pan
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Liting Lu
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Wenyi Zhang
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Wanqin Liao
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Xincheng Lu
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| |
Collapse
|
73
|
Xuan W, Huang L, Wang Y, Hu X, Szewczyk G, Huang YY, El-Hussein A, Bommer JC, Nelson ML, Sarna T, Hamblin MR. Amphiphilic tetracationic porphyrins are exceptionally active antimicrobial photosensitizers: In vitro and in vivo studies with the free-base and Pd-chelate. J Biophotonics 2019; 12:e201800318. [PMID: 30667177 PMCID: PMC6646111 DOI: 10.1002/jbio.201800318] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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] [Received: 08/21/2018] [Revised: 01/20/2019] [Accepted: 01/20/2019] [Indexed: 06/09/2023]
Abstract
Antimicrobial photodynamic inactivation (aPDI) employs the combination of nontoxic photosensitizing dyes and visible light to kill pathogenic microorganisms regardless of drug-resistance, and can be used to treat localized infections. A meso-substituted tetra-methylpyridinium porphyrin with one methyl group replaced by a C12 alkyl chain (FS111) and its Pd-derivative (FS111-Pd) were synthesized and tested as broad-spectrum antimicrobial photosensitizers when excited by blue light (5 or 10 J/cm2 ). Both compounds showed unprecedented activity, with the superior FS111-Pd giving 3 logs of killing at 1 nM, and eradication at 10 nM for Gram-positive methicillin-resistant Staphylococcus aureus. For the Gram-negative Escherichia coli, both compounds produced eradication at 100 nM, while against the fungal yeast Candida albicans, both compounds produced eradication at 500 nM. Both compounds could be categorized as generators of singlet oxygen (ΦΔ = 0.62 for FS111 and 0.71 for FS111-Pd). An in vivo study was carried out using a mouse model of localized infection in a partial thickness skin abrasion caused by bioluminescent Gram-negative uropathogenic E. coli. Both compounds were effective in reducing bioluminescent signal in a dose-dependent manner when excited by blue light (405 nm), but aPDI with FS111-Pd was somewhat superior both during light and in preventing recurrence during the 6 days following PDT.
Collapse
Affiliation(s)
- Weijun Xuan
- Department of Otorhinolaryngology, Head and Neck Surgery, First Clinical Medical College and Hospital, Guangxi University of Chinese Medicine, Nanning, China
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts
| | - Liyi Huang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts
- Department of Infectious Diseases, First Affiliated Hospital, Guangxi Medical University, Nanning, China
| | - Yuguang Wang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Xiaoqing Hu
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Grzegorz Szewczyk
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Ying-Ying Huang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts
| | - Ahmed El-Hussein
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts
- The National Institute of Laser Enhanced Science, Cairo University, Giza, Egypt
| | | | | | - Tadeusz Sarna
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts
| |
Collapse
|
74
|
Zeng Q, Zhang Z, Chen P, Long N, Lu L, Sang H. In vitro and in vivo Efficacy of a Synergistic Combination of Itraconazole and Verapamil Against Aspergillus fumigatus. Front Microbiol 2019; 10:1266. [PMID: 31231346 PMCID: PMC6567931 DOI: 10.3389/fmicb.2019.01266] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 03/14/2019] [Accepted: 05/22/2019] [Indexed: 12/14/2022] Open
Abstract
The incidence of aspergillosis continues to rise sharply, while the progress made in expanding the antifungal drug arsenal remains extremely slow, indicating an urgent need for new strategies. Previous studies have shown that the calcium signaling pathway, which is evolutionarily conserved in mammals and fungi, is involved in regulating the tolerance of azoles in fungi. In this study, we performed a preliminary screening among various combinations of different clinical calcium channel blockers and different antifungal drugs. We found that the combination of itraconazole and verapamil showed the best synergistic effect against Aspergillus fumigatus. Thereafter, using the checkboard assays we observed synergistic effects of the combination treatment against most of the A. fumigatus strains tested, including itraconazole-sensitive and itraconazole-resistant strains, with a fractional inhibitory concentration index (FICI) < 0.5. Furthermore, we showed that verapamil strongly decreased the cytosolic calcium transients following itraconazole stimulation by an aequorin-mediated method. Moreover, verapamil influenced the efflux of rhodamine 6G, an azole mimic substance. An ergosterol assay revealed that verapamil alone had no effect on ergosterol biosynthesis, but the combination of itraconazole and verapamil treatment decreased the ergosterol level. Further murine assays were performed using a luciferase-probed bioluminescence imaging method. Drug combination therapy reduced lung burden and improved survival rate. In conclusion, verapamil is a promising candidate to enhance the antifungal activity of itraconazole against A. fumigatus. In addition, our study suggests the effectiveness of an emerging approach based on bioluminescence imaging in monitoring the efficacy of drug combination therapy for invasive aspergillosis.
Collapse
Affiliation(s)
- Qiuqiong Zeng
- Department of Dermatology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Zheng Zhang
- Department of Dermatology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Peiying Chen
- Department of Dermatology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Nanbiao Long
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Microbiology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Ling Lu
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Microbiology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Hong Sang
- Department of Dermatology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| |
Collapse
|
75
|
Collmann FM, Pijnenburg R, Hamzei-Taj S, Minassian A, Folz-Donahue K, Kukat C, Aswendt M, Hoehn M. Individual in vivo Profiles of Microglia Polarization After Stroke, Represented by the Genes iNOS and Ym1. Front Immunol 2019; 10:1236. [PMID: 31214190 PMCID: PMC6558167 DOI: 10.3389/fimmu.2019.01236] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 05/15/2019] [Indexed: 12/26/2022] Open
Abstract
Microglia are the brain-innate immune cells which actively surveil their environment and mediate multiple aspects of neuroinflammation, due to their ability to acquire diverse activation states and phenotypes. Simplified, M1-like microglia are defined as pro-inflammatory cells, while the alternative M2-like cells promote neuroprotection. The modulation of microglia polarization is an appealing neurotherapeutic strategy for stroke and other brain lesions, as well as neurodegenerative diseases. However, the activation profile and change of phenotype during experimental stroke is not well understood. With a combined magnetic resonance imaging (MRI) and optical imaging approach and genetic targeting of two key genes of the M1- and M2-like phenotypes, iNOS and Ym1, we were able to monitor in vivo the dynamic adaption of the microglia phenotype in response to experimental stroke.
Collapse
Affiliation(s)
- Franziska M Collmann
- In-vivo-NMR, Laboratory, Max Planck Institute for Metabolism Research, Cologne, Germany
| | - Rory Pijnenburg
- In-vivo-NMR, Laboratory, Max Planck Institute for Metabolism Research, Cologne, Germany
| | - Somayyeh Hamzei-Taj
- In-vivo-NMR, Laboratory, Max Planck Institute for Metabolism Research, Cologne, Germany
| | - Anuka Minassian
- In-vivo-NMR, Laboratory, Max Planck Institute for Metabolism Research, Cologne, Germany
| | - Kat Folz-Donahue
- FACS & Imaging Core Facility, Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Christian Kukat
- FACS & Imaging Core Facility, Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Markus Aswendt
- In-vivo-NMR, Laboratory, Max Planck Institute for Metabolism Research, Cologne, Germany.,Department of Neurology, University Hospital Cologne, Cologne, Germany
| | - Mathias Hoehn
- In-vivo-NMR, Laboratory, Max Planck Institute for Metabolism Research, Cologne, Germany.,Radiology Department, Leiden University Medical Center, Leiden, Netherlands.,PERCUROS, Enschede, Netherlands
| |
Collapse
|
76
|
Shen L, Niu J, Wang C, Huang B, Wang W, Zhu N, Deng Y, Wang H, Ye F, Cen S, Tan W. High-Throughput Screening and Identification of Potent Broad-Spectrum Inhibitors of Coronaviruses. J Virol. 2019;93. [PMID: 30918074 PMCID: PMC6613765 DOI: 10.1128/jvi.00023-19] [Citation(s) in RCA: 197] [Impact Index Per Article: 39.4] [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: 01/07/2019] [Accepted: 03/17/2019] [Indexed: 12/28/2022] Open
Abstract
Currently, there is no approved therapy to treat coronavirus infection; therefore, broad-spectrum inhibitors of emerging and endemic CoVs are needed. Based on our high-throughput screening assay using a compound library, we identified seven compounds with broad-spectrum efficacy against the replication of four CoVs in vitro. Additionally, one compound (lycorine) was found to protect BALB/c mice against HCoV-OC43-induced lethality by decreasing viral load in the central nervous system. This inhibitor might offer promising therapeutic possibilities for combatting novel CoV infections in the future. Coronaviruses (CoVs) act as cross-species viruses and have the potential to spread rapidly into new host species and cause epidemic diseases. Despite the severe public health threat of severe acute respiratory syndrome coronavirus and Middle East respiratory syndrome CoV (MERS-CoV), there are currently no drugs available for their treatment; therefore, broad-spectrum inhibitors of emerging and endemic CoVs are urgently needed. To search for effective inhibitory agents, we performed high-throughput screening (HTS) of a 2,000-compound library of approved drugs and pharmacologically active compounds using the established genetically engineered human CoV OC43 (HCoV-OC43) strain expressing Renilla luciferase (rOC43-ns2Del-Rluc) and validated the inhibitors using multiple genetically distinct CoVs in vitro. We screened 56 hits from the HTS data and validated 36 compounds in vitro using wild-type HCoV-OC43. Furthermore, we identified seven compounds (lycorine, emetine, monensin sodium, mycophenolate mofetil, mycophenolic acid, phenazopyridine, and pyrvinium pamoate) as broad-spectrum inhibitors according to their strong inhibition of replication by four CoVs in vitro at low-micromolar concentrations. Additionally, we found that emetine blocked MERS-CoV entry according to pseudovirus entry assays and that lycorine protected BALB/c mice against HCoV-OC43-induced lethality by decreasing viral load in the central nervous system. This represents the first demonstration of in vivo real-time bioluminescence imaging to monitor the effect of lycorine on the spread and distribution of HCoV-OC43 in a mouse model. These results offer critical information supporting the development of an effective therapeutic strategy against CoV infection. IMPORTANCE Currently, there is no approved therapy to treat coronavirus infection; therefore, broad-spectrum inhibitors of emerging and endemic CoVs are needed. Based on our high-throughput screening assay using a compound library, we identified seven compounds with broad-spectrum efficacy against the replication of four CoVs in vitro. Additionally, one compound (lycorine) was found to protect BALB/c mice against HCoV-OC43-induced lethality by decreasing viral load in the central nervous system. This inhibitor might offer promising therapeutic possibilities for combatting novel CoV infections in the future.
Collapse
|
77
|
Liu R, Tang J, Xu Y, Dai Z. Bioluminescence Imaging of Inflammation in Vivo Based on Bioluminescence and Fluorescence Resonance Energy Transfer Using Nanobubble Ultrasound Contrast Agent. ACS Nano 2019; 13:5124-5132. [PMID: 31059237 DOI: 10.1021/acsnano.8b08359] [Citation(s) in RCA: 58] [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] [Indexed: 05/26/2023]
Abstract
Inflammation is an immunological response involved in various inflammatory disorders ranging from neurodegenerative diseases to cancers. Luminol has been reported to detect myeloperoxidase (MPO) activity in an inflamed area through a light-emitting reaction. However, this method is limited by low tissue penetration and poor spatial resolution. Here, we fabricated a nanobubble (NB) doped with two tandem lipophilic dyes, red-shifting luminol-emitted blue light to near-infrared region through a process integrating bioluminescence resonance energy transfer (BRET) and fluorescence resonance energy transfer (FRET). This BRET-FRET process caused a 24-fold increase in detectable luminescence emission over luminol alone in an inflammation model induced by lipopolysaccharide. In addition, the echogenicity of the BRET-FRET NBs also enables perfused tissue microvasculature to be delineated by contrast-enhanced ultrasound imaging with high spatial resolution. Compared with commercially available ultrasound contrast agent, the BRET-FRET NBs exhibited comparable contrast-enhancing capability but much smaller size and higher concentration. This bioluminescence/ultrasound dual-modal contrast agent was then successfully applied for imaging of an animal model of breast cancer. Furthermore, biosafety experiments revealed that multi-injection of luminol and NBs did not induce any observable abnormality. By integrating the advantages of bioluminescence imaging and ultrasound imaging, this BRET-FRET system may have the potential to address a critical need of inflammation imaging.
Collapse
Affiliation(s)
- Renfa Liu
- Department of Biomedical Engineering College of Engineering , Peking University , Beijing 100871 , China
| | - Jie Tang
- Department of Biomedical Engineering College of Engineering , Peking University , Beijing 100871 , China
| | - Yunxue Xu
- Department of Biomedical Engineering College of Engineering , Peking University , Beijing 100871 , China
| | - Zhifei Dai
- Department of Biomedical Engineering College of Engineering , Peking University , Beijing 100871 , China
| |
Collapse
|
78
|
Green C, Minassian A, Vogel S, Diedenhofen M, Wiedermann D, Hoehn M. Persistent Quantitative Vitality of Stem Cell Graft Is Necessary for Stabilization of Functional Brain Networks After Stroke. Front Neurol 2019; 10:335. [PMID: 31024429 PMCID: PMC6460358 DOI: 10.3389/fneur.2019.00335] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 03/19/2019] [Indexed: 11/13/2022] Open
Abstract
Stem cell treatment after stroke has demonstrated substantial outcome improvement. However, monitoring of stem cell fate in vivo is still challenging and not routinely performed, yet important to quantify the role of the implanted stem cells on lesion improvement; in several studies even mortality of the graft has been reported. Resting state functional magnetic resonance imaging (rs-fMRI) is a highly sensitive imaging modality to monitor the brain-wide functional network alterations of many brain diseases in vivo. We monitor for 3 months the functional connectivity changes after intracortical stem cell engraftment in large, cortico-striatal (n = 9), and in small, striatal (n = 6) ischemic lesions in the mouse brain with non-invasive rs-fMRI on a 9.4T preclinical MRi scanner with GE-EPI sequence. Graft vitality is continuously recorded by bioluminescence imaging (BLI) roughly every 2 weeks after implantation of 300 k neural stem cells. In cortico-striatal lesions, the lesion extension induces graft vitality loss, in consequence leading to a parallel decrease of functional connectivity strength after a few weeks. In small, striatal lesions, the graft vitality is preserved for the whole observation period and the functional connectivity is stabilized at values as in the pre-stroke situation. But even here, at the end of the observation period of 3 months, the functional connectivity strength is found to decrease despite preserved graft vitality. We conclude that quantitative graft viability is a necessary but not sufficient criterion for functional neuronal network stabilization after stroke. Future studies with even longer time periods after stroke induction will need to identify additional players which have negative influence on the functional brain networks.
Collapse
Affiliation(s)
- Claudia Green
- In-vivo-NMR Laboratory, Max Planck Institute for Metabolism Research, Cologne, Germany
| | - Anuka Minassian
- In-vivo-NMR Laboratory, Max Planck Institute for Metabolism Research, Cologne, Germany
| | - Stefanie Vogel
- In-vivo-NMR Laboratory, Max Planck Institute for Metabolism Research, Cologne, Germany
| | - Michael Diedenhofen
- In-vivo-NMR Laboratory, Max Planck Institute for Metabolism Research, Cologne, Germany
| | - Dirk Wiedermann
- In-vivo-NMR Laboratory, Max Planck Institute for Metabolism Research, Cologne, Germany
| | - Mathias Hoehn
- In-vivo-NMR Laboratory, Max Planck Institute for Metabolism Research, Cologne, Germany.,Department of Radiology, Leiden University Medical Center, Leiden, Netherlands.,Percuros B.V., Enschede, Netherlands
| |
Collapse
|
79
|
van Zyl WF, Deane SM, Dicks LMT. Bacteriocin production and adhesion properties as mechanisms for the anti-listerial activity of Lactobacillus plantarum 423 and Enterococcus mundtii ST4SA. Benef Microbes 2019; 10:329-349. [PMID: 30773929 DOI: 10.3920/bm2018.0141] [Citation(s) in RCA: 10] [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] [Indexed: 01/08/2023]
Abstract
Probiotics play an important role in maintaining a healthy and stable intestinal microbiota, primarily by preventing infection. Probiotic lactic acid bacteria (LAB) are known to be inhibitory to many bacterial enteric pathogens, including antibiotic-resistant strains. Whilst the positive role that probiotics have on human physiology, specifically in the treatment or prevention of specific infectious diseases of the gastro-intestinal tract (GIT) is known, the precise mechanistic basis of these effects remains a major research goal. In this study, molecular evidence to underpin the protective and anti-listerial effect of Lactobacillus plantarum 423 and Enterococcus mundtii ST4SA against orally administered Listeria monocytogenes EGDe in the GIT of mice is provided. Bacteriocins plantaricin 423 and mundticin ST4SA, produced by L. plantarum 423 and E. mundtii ST4SA, respectively, inhibited the growth of L. monocytogenes in vitro and in vivo. Bacteriocin-negative mutants of L. plantarum 423 and E. mundtii ST4SA failed to exclude L. monocytogenes EGDe from the gastrointestinal tract (GIT) of mice. Furthermore, L. plantarum 423 and E. mundtii ST4SA failed to inhibit recombinant strains of L. monocytogenes EGDe in vivo that expressed the immunity proteins of the two bacteriocins. These results confirmed that bacteriocins plantaricin 423 and mundticin ST4SA acted as anti-infective mediators in vivo. Compared to wild type strains, mutants of L. plantarum 423 and E. mundtii ST4SA, in which the adhesion genes were knocked out, were less effective in the exclusion of L. monocytogenes EGDe from the GIT of mice. This work demonstrates the importance of bacteriocin and adhesion genes as probiotic anti-infective mechanisms.
Collapse
Affiliation(s)
- W F van Zyl
- 1 Department of Microbiology, University of Stellenbosch, Matieland, Stellenbosch 7600, South Africa
| | - S M Deane
- 1 Department of Microbiology, University of Stellenbosch, Matieland, Stellenbosch 7600, South Africa
| | - L M T Dicks
- 1 Department of Microbiology, University of Stellenbosch, Matieland, Stellenbosch 7600, South Africa
| |
Collapse
|
80
|
Persyn A, Rogiers O, Brock M, Vande Velde G, Lamkanfi M, Jacobsen ID, Himmelreich U, Lagrou K, Van Dijck P, Kucharíková S. Monitoring of Fluconazole and Caspofungin Activity against In Vivo Candida glabrata Biofilms by Bioluminescence Imaging. Antimicrob Agents Chemother 2019; 63:e01555-18. [PMID: 30420485 DOI: 10.1128/AAC.01555-18] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 10/27/2018] [Indexed: 12/25/2022] Open
Abstract
Candida glabrata can attach to various medical implants and forms thick biofilms despite its inability to switch from yeast to hyphae. The current in vivo C. glabrata biofilm models only provide limited information about colonization and infection and usually require animal sacrifice. To gain real-time information from individual BALB/c mice, we developed a noninvasive imaging technique to visualize C. glabrata biofilms in catheter fragments that were subcutaneously implanted on the back of mice. Bioluminescent C. glabrata reporter strains (luc OPT 7/2/4 and luc OPT 8/1/4), free of auxotrophic markers, expressing a codon-optimized firefly luciferase were generated. A murine subcutaneous model was used to follow real-time in vivo biofilm formation in the presence and absence of fluconazole and caspofungin. The fungal load in biofilms was quantified by CFU counts and by bioluminescence imaging (BLI). C. glabrata biofilms formed within the first 24 h, as documented by the increased number of device-associated cells and elevated bioluminescent signal compared with adhesion at the time of implant. The in vivo model allowed monitoring of the antibiofilm activity of caspofungin against C. glabrata biofilms through bioluminescent imaging from day four after the initiation of treatment. Contrarily, signals emitted from biofilms implanted in fluconazole-treated mice were similar to the light emitted from control-treated mice. This study gives insights into the real-time development of C. glabrata biofilms under in vivo conditions. BLI proved to be a dynamic, noninvasive, and sensitive tool to monitor continuous biofilm formation and activity of antifungal agents against C. glabrata biofilms formed on abiotic surfaces in vivo.
Collapse
|
81
|
Abstract
Aim To 3D print heart tissue, one must understand how the main two types of cardiac cells are affected by the printing process. Materials & methods Effects of gelatin methacryloyl (GelMA) concentration, extruder pressure and duration of UV exposure on survival of cardiac myocytes and fibroblasts were examined using lactate dehydrogenase and LIVE/DEAD assays, bioluminescence imaging and morphological assessment. Results & conclusion Cell survival within 3D printed cardiomyocyte-laden GelMA constructs was more sensitive to extruder pressure and GelMA concentrations than within 3D fibroblast-laden GelMA constructs. Cells within both types of constructs were adversely impacted by the UV curing step. Use of mixed cell populations and enrichment of bioink formulation with fibronectin led to an improvement of cardiomyocyte survival and spreading.
Collapse
Affiliation(s)
- Priyanka Koti
- Department of Pharmacology & Physiology, The George Washington University School of Medicine & Health Sciences, 2300 I-street, Ross Hall 454, Washington DC 20037, USA
| | - Narine Muselimyan
- Department of Pharmacology & Physiology, The George Washington University School of Medicine & Health Sciences, 2300 I-street, Ross Hall 454, Washington DC 20037, USA
| | - Eman Mirdamadi
- Department of Pharmacology & Physiology, The George Washington University School of Medicine & Health Sciences, 2300 I-street, Ross Hall 454, Washington DC 20037, USA
| | - Huda Asfour
- Department of Pharmacology & Physiology, The George Washington University School of Medicine & Health Sciences, 2300 I-street, Ross Hall 454, Washington DC 20037, USA
| | - Narine A Sarvazyan
- Department of Pharmacology & Physiology, The George Washington University School of Medicine & Health Sciences, 2300 I-street, Ross Hall 454, Washington DC 20037, USA
| |
Collapse
|
82
|
Mezzanotte L, Iljas JD, Que I, Chan A, Kaijzel E, Hoeben R, Löwik C. Optimized Longitudinal Monitoring of Stem Cell Grafts in Mouse Brain Using a Novel Bioluminescent/Near Infrared Fluorescent Fusion Reporter. Cell Transplant 2018; 26:1878-1889. [PMID: 29390874 PMCID: PMC5802635 DOI: 10.1177/0963689717739718] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Biodistribution and fate of transplanted stem cells via longitudinal monitoring has been successfully achieved in the last decade using optical imaging. However, sensitive longitudinal imaging of transplanted stem cells in deep tissue like the brain remains challenging not only due to low light penetration but because of other factors such as low or inferior expression levels of optical reporters in stem cells and stem cell death after transplantation. Here we describe an optimized imaging protocol for sensitive long-term monitoring of bone marrow-derived human mesenchymal stem cells (hMSCs) expressing a novel bioluminescent/near infrared fluorescent (NIRF) fusion reporter transplanted in mouse brain cortex. Lentivirus expressing the luc2-iRFP720 reporter, a fusion between luc2 codon-optimized firefly luciferase (luc2) and the gene encoding NIRF protein iRFP720, was generated to transduce hMSCs. These cells were analyzed for their fluorescent and bioluminescent emission and checked for their differentiation potential. In vivo experiments were performed by transplanting decreasing amounts of luc2-iRFP720 expressing hMSCs in mouse brain, followed by fluorescence and bioluminescence imaging (BLI) starting 1 wk after cell injection when the blood–brain barrier was restored. Bioluminescent images were acquired when signals peaked and used to compare different luc2 substrate performances, that is, D-luciferin (D-Luc; 25 μM/kg or 943 μM/kg) or CycLuc1 (25 μM/kg). Results showed that luc2-iRFP720 expressing hMSCs maintained a good in vitro differentiation potential toward adipocytes, chondrocytes, and osteocytes, suggesting that lentiviral transduction did not affect cell behavior. Moreover, in vivo experiments allowed us to image as low as 1 × 105 cells using both fluorescence and BLI. The highest bioluminescent signals (∼1 × 107 photons per second) were achieved 15 min after the injection of D-Luc (943 μM/kg). This allowed us to monitor as low as 1 × 105 hMSCs for the subsequent 7 wk without a significant drop in bioluminescent signals, suggesting the sustained viability of hMSCs transplanted into the cortex.
Collapse
Affiliation(s)
- Laura Mezzanotte
- 1 Department of Radiology, Optical Molecular Imaging, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Juvita Delancy Iljas
- 2 Percuros BV, Enschede, the Netherlands.,3 Max Planck Institute for Metabolism Research, Cologne, Germany
| | - Ivo Que
- 4 Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Alan Chan
- 2 Percuros BV, Enschede, the Netherlands
| | - Eric Kaijzel
- 4 Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Rob Hoeben
- 5 Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - Clemens Löwik
- 1 Department of Radiology, Optical Molecular Imaging, Erasmus Medical Center, Rotterdam, the Netherlands
| |
Collapse
|
83
|
Lee KC, Chen WT, Liu YC, Lin SS, Hsu FT. Amentoflavone Inhibits Hepatocellular Carcinoma Progression Through Blockage of ERK/NF-ĸB Activation. In Vivo 2018; 32:1097-1103. [PMID: 30150431 DOI: 10.21873/invivo.11351] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/21/2018] [Accepted: 05/23/2018] [Indexed: 02/06/2023]
Abstract
AIM The aim of the present study was to confirm therapeutic efficacy and find probable mechanism of action of amentoflavone in hepatocellular carcinoma (HCC) in vivo. MATERIALS AND METHODS Luciferase reporter vector pGL4.50_transfected SK-Hep1 (SK-Hep1/luc2) tumor-bearing mice were treated with vehicle or amentoflavone (100 mg/kg/day by gavage) for 14 days. Tumor growth, amentoflavone toxicity, and extracellular signal-regulated kinase (ERK)/nuclear factor-kappaB (NF-ĸB) signaling in tumor progression were evaluated with digital caliper, bioluminescence imaging, computed tomography, body weight, pathological examination of liver, and immunohistochemistry staining. RESULTS Amentoflavone significantly inhibited tumor growth, ERK/NF-ĸB activation, and expression of tumor progression-associated proteins as compared to vehicle-treated group. In addition, body weight and liver morphology of mice were not influenced by amentoflavone treatment. CONCLUSION These results suggest that amentoflavone inhibits HCC progression through suppression of ERK/NF-ĸB signaling.
Collapse
Affiliation(s)
- Kun-Ching Lee
- Department of Medical Imaging and Radiological Sciences, Central-Taiwan University of Science and Technology, Taichung, Taiwan, R.O.C.,Department of Radiation Oncology, National Yang-Ming University Hospital, Yilan, Taiwan, R.O.C
| | - Wei-Ting Chen
- Department of Medical Imaging and Radiological Sciences, Central-Taiwan University of Science and Technology, Taichung, Taiwan, R.O.C.,Department of Psychiatry, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung, Taiwan, R.O.C
| | - Yu-Chang Liu
- Department of Medical Imaging and Radiological Sciences, Central-Taiwan University of Science and Technology, Taichung, Taiwan, R.O.C.,Department of Radiation Oncology, National Yang-Ming University Hospital, Yilan, Taiwan, R.O.C
| | - Song-Shei Lin
- Department of Medical Imaging and Radiological Sciences, Central-Taiwan University of Science and Technology, Taichung, Taiwan, R.O.C.
| | - Fei-Ting Hsu
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan, R.O.C. .,Department of Medical Imaging, Taipei Medical University Hospital, Taipei, Taiwan, R.O.C.,Research Center of Translational Imaging, College of Medicine, Taipei Medical University, Taipei, Taiwan, R.O.C.,Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, R.O.C
| |
Collapse
|
84
|
Ullrich M, Liers J, Peitzsch M, Feldmann A, Bergmann R, Sommer U, Richter S, Bornstein SR, Bachmann M, Eisenhofer G, Ziegler CG, Pietzsch J. Strain-specific metastatic phenotypes in pheochromocytoma allograft mice. Endocr Relat Cancer 2018; 25:993-1004. [PMID: 30288966 PMCID: PMC6176113 DOI: 10.1530/erc-18-0136] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/12/2018] [Indexed: 11/15/2022]
Abstract
Somatostatin receptor-targeting endoradiotherapy offers potential for treating metastatic pheochromocytomas and paragangliomas, an approach likely to benefit from combination radiosensitization therapy. To provide reliable preclinical in vivo models of metastatic disease, this study characterized the metastatic spread of luciferase-expressing mouse pheochromocytoma (MPC) cells in mouse strains with different immunologic conditions. Bioluminescence imaging showed that, in contrast to subcutaneous non-metastatic engraftment of luciferase-expressing MPC cells in NMRI-nude mice, intravenous cell injection provided only suboptimal metastatic spread in both NMRI-nude mice and hairless SCID (SHO) mice. Treatment of NMRI-nude mice with anti-Asialo GM1 serum enhanced metastatic spread due to substantial depletion of natural killer (NK) cells. However, reproducible metastatic spread was only observed in NK cell-defective SCID/beige mice and in hairless immunocompetent SKH1 mice bearing disseminated or liver metastases, respectively. Liquid chromatography tandem mass spectrometry of urine samples showed that subcutaneous and metastasized tumor models exhibit comparable renal monoamine excretion profiles characterized by increasing urinary dopamine, 3-methoxytyramine, norepinephrine and normetanephrine. Metastases-related epinephrine and metanephrine were only detectable in SCID/beige mice. Positron emission tomography and immunohistochemistry revealed that all metastases maintained somatostatin receptor-specific radiotracer uptake and immunoreactivity, respectively. In conclusion, we demonstrate that intravenous injection of luciferase-expressing MPC cells into SCID/beige and SKH1 mice provides reproducible and clinically relevant spread of catecholamine-producing and somatostatin receptor-positive metastases. These standardized preclinical models allow for precise monitoring of disease progression and should facilitate further investigations on theranostic approaches against metastatic pheochromocytomas and paragangliomas.
Collapse
Affiliation(s)
- Martin Ullrich
- Department of Radiopharmaceutical and Chemical BiologyHelmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
| | - Josephine Liers
- Department of Radiopharmaceutical and Chemical BiologyHelmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
- Technische Universität DresdenSchool of Medicine, Faculty of Medicine Carl Gustav Carus, Dresden, Germany
| | - Mirko Peitzsch
- Technische Universität DresdenUniversity Hospital Carl Gustav Carus, Institute of Clinical Chemistry and Laboratory Medicine, Dresden, Germany
| | - Anja Feldmann
- Department of RadioimmunologyHelmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
| | - Ralf Bergmann
- Department of Radiopharmaceutical and Chemical BiologyHelmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
| | - Ulrich Sommer
- Technische Universität DresdenUniversity Hospital Carl Gustav Carus, Institute of Pathology, Dresden, Germany
| | - Susan Richter
- Technische Universität DresdenSchool of Medicine, Faculty of Medicine Carl Gustav Carus, Dresden, Germany
- Technische Universität DresdenUniversity Hospital Carl Gustav Carus, Institute of Clinical Chemistry and Laboratory Medicine, Dresden, Germany
| | - Stefan R Bornstein
- Technische Universität DresdenSchool of Medicine, Faculty of Medicine Carl Gustav Carus, Dresden, Germany
- Department of Internal Medicine IIITechnische Universität Dresden, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Michael Bachmann
- Technische Universität DresdenSchool of Medicine, Faculty of Medicine Carl Gustav Carus, Dresden, Germany
- Department of RadioimmunologyHelmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
- Technische Universität DresdenUniversity Hospital Carl Gustav Carus, Universitäts Krebs Centrum (UCC), Tumorimmunology, Dresden, Germany
- Technische Universität DresdenNational Center for Tumor Diseases (NCT), Dresden, Germany
| | - Graeme Eisenhofer
- Technische Universität DresdenSchool of Medicine, Faculty of Medicine Carl Gustav Carus, Dresden, Germany
- Technische Universität DresdenUniversity Hospital Carl Gustav Carus, Institute of Clinical Chemistry and Laboratory Medicine, Dresden, Germany
- Department of Internal Medicine IIITechnische Universität Dresden, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Christian G Ziegler
- Department of Internal Medicine IIITechnische Universität Dresden, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Jens Pietzsch
- Department of Radiopharmaceutical and Chemical BiologyHelmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
- Technische Universität DresdenSchool of Science, Faculty of Chemistry and Food Chemistry, Dresden, Germany
- Correspondence should be addressed to J Pietzsch:
| |
Collapse
|
85
|
Lu M, Dai T, Murray CK, Wu MX. Bactericidal Property of Oregano Oil Against Multidrug-Resistant Clinical Isolates. Front Microbiol 2018; 9:2329. [PMID: 30344513 PMCID: PMC6182053 DOI: 10.3389/fmicb.2018.02329] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 09/11/2018] [Indexed: 12/14/2022] Open
Abstract
Development of non-antibiotic alternatives to treat infections caused by multidrug-resistant (MDR) microbes represents one of the top priorities in healthcare and community settings, especially in the care of combat trauma-associated wound infections. Here, we investigate efficacy of oregano oil against pathogenic bacteria including MDR isolates from the combat casualties in vitro and in a mouse burn model. Oregano oil showed a significant anti-bacterial activity against 11 MDR clinical isolates including four Acinetobacter baumannii, three Pseudomonas aeruginosa, and four methicillin-resistant Staphylococcus aureus (MRSA) obtained from combat casualties and two luminescent strains of PA01 and MRSA USA300, with a MIC ranging from 0.08 mg/ml to 0.64 mg/ml. Oregano oil also effectively eradicated biofilms formed by each of the 13 pathogens above at similar MICs. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) revealed that oregano oil damaged bacterial cells and altered the morphology of their biofilms. While efficiently inactivating bacteria, there was no evidence of resistance development after up to 20 consecutive passages of representative bacterial strains in the presence of sublethal doses of oregano oil. In vivo study using the third-degree burn wounds infected with PA01 or USA300 demonstrated that oregano oil, topically applied 24 h after bacterial inoculation, sufficiently reduced the bacterial load in the wounds by 3 log10 in 1 h, as measured by drastic reduction of bacterial bioluminescence. This bactericidal activity of oregano oil concurred with no significant side effect on the skin histologically or genotoxicity after three topical applications of oregano oil at 10 mg/ml for three consecutive days. The investigation suggests potentials of oregano oil as an alternative to antibiotics for the treatment of wound-associated infections regardless of antibiotic susceptibility.
Collapse
Affiliation(s)
- Min Lu
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Tianhong Dai
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Clinton K Murray
- First Area Medical Laboratory, JBSA-Fort Sam Houston, Houston, TX, United States
| | - Mei X Wu
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| |
Collapse
|
86
|
Konings GF, Saarinen N, Delvoux B, Kooreman L, Koskimies P, Krakstad C, Fasmer KE, Haldorsen IS, Zaffagnini A, Häkkinen MR, Auriola S, Dubois L, Lieuwes N, Verhaegen F, Schyns LE, Kruitwagen RF, Xanthoulea S, Romano A. Development of an Image-Guided Orthotopic Xenograft Mouse Model of Endometrial Cancer with Controllable Estrogen Exposure. Int J Mol Sci 2018; 19:ijms19092547. [PMID: 30154339 PMCID: PMC6165149 DOI: 10.3390/ijms19092547] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 08/01/2018] [Revised: 08/19/2018] [Accepted: 08/22/2018] [Indexed: 02/08/2023] Open
Abstract
Endometrial cancer (EC) is the most common gynaecological malignancy in Western society and the majority of cases are estrogen dependent. While endocrine drugs proved to be of insufficient therapeutic value in the past, recent clinical research shows promising results by using combinational regimens and pre-clinical studies and identified potential novel endocrine targets. Relevant pre-clinical models can accelerate research in this area. In the present study we describe an orthotopic and estrogen dependent xenograft mouse model of EC. Tumours were induced in one uterine horn of female athymic nude mice using the well-differentiated human endometrial adenocarcinoma Ishikawa cell line—modified to express the luciferase gene for bioluminescence imaging (BLI). BLI and contrast-enhanced computed-tomograph (CE-CT) were used to measure non-invasive tumour growth. Controlled estrogen exposure was achieved by the use of MedRod implants releasing 1.5 μg/d of 17β-estradiol (E2) in ovariectomized mice. Stable E2 serum concentration was demonstrated by LC-MS/MS. Induced tumours were E2 responsive as increased tumour growth was observed in the presence of E2 but not placebo, assessed by BLI, CE-CT, and tumour weight at sacrifice. Metastatic spread was assessed macroscopically by BLI and histology and was seen in the peritoneal cavity, in the lymphovascular space, and in the thoracic cavity. In conclusion, we developed an orthotopic xenograft mouse model of EC that exhibits the most relevant features of human disease, regarding metastatic spread and estrogen dependency. This model offers an easy to manipulate estrogen dosage (by simply adjusting the MedRod implant length), image-guided monitoring of tumour growth, and objectively measurable endpoints (including tumour weight). This is an excellent in vivo tool to further explore endocrine drug regimens and novel endocrine drug targets for EC.
Collapse
Affiliation(s)
- Gonda Fj Konings
- GROW-School for Oncology & Developmental Biology, Maastricht University, 6229HX Maastricht, The Netherlands.
- Department of Obstetrics and Gynaecology, Maastricht University Medical Centre, P. Debyelaan 25, 6229HX Maastricht, The Netherlands.
| | - Niina Saarinen
- Forendo Pharma Ltd., FI-20520 Turku, Finland.
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology and Turku Center for Disease Modeling (TCDM), University of Turku, FI-20520 Turku, Finland.
| | - Bert Delvoux
- GROW-School for Oncology & Developmental Biology, Maastricht University, 6229HX Maastricht, The Netherlands.
- Department of Obstetrics and Gynaecology, Maastricht University Medical Centre, P. Debyelaan 25, 6229HX Maastricht, The Netherlands.
| | - Loes Kooreman
- GROW-School for Oncology & Developmental Biology, Maastricht University, 6229HX Maastricht, The Netherlands.
- Department of Pathology, Maastricht University Medical Centre, 6229HX Maastricht, The Netherlands.
| | | | - Camilla Krakstad
- Department of Obstetrics and Gynaecology, Haukeland University Hospital, 5021 Bergen, Norway.
- Centre for Cancer Biomarkers, Department of Clinical Science, University of Bergen, 5021 Bergen, Norway.
| | - Kristine E Fasmer
- Department of Radiology, Haukeland University Hospital, 5021 Bergen, Norway.
- Section for Radiology, Department of Clinical Medicine, University of Bergen, 5020 Bergen, Norway.
| | - Ingfrid S Haldorsen
- Department of Radiology, Haukeland University Hospital, 5021 Bergen, Norway.
- Section for Radiology, Department of Clinical Medicine, University of Bergen, 5020 Bergen, Norway.
| | - Amina Zaffagnini
- GROW-School for Oncology & Developmental Biology, Maastricht University, 6229HX Maastricht, The Netherlands.
- Department of Obstetrics and Gynaecology, Maastricht University Medical Centre, P. Debyelaan 25, 6229HX Maastricht, The Netherlands.
| | - Merja R Häkkinen
- School of Pharmacy, University of Eastern Finland, FI-80101 Kuopio, Finland.
| | - Seppo Auriola
- School of Pharmacy, University of Eastern Finland, FI-80101 Kuopio, Finland.
| | - Ludwig Dubois
- GROW-School for Oncology & Developmental Biology, Maastricht University, 6229HX Maastricht, The Netherlands.
- Department of Radiotherapy (MAASTRO), Maastricht University, 6229HX Maastricht, The Netherlands.
| | - Natasja Lieuwes
- GROW-School for Oncology & Developmental Biology, Maastricht University, 6229HX Maastricht, The Netherlands.
- Department of Radiotherapy (MAASTRO), Maastricht University, 6229HX Maastricht, The Netherlands.
| | - Frank Verhaegen
- GROW-School for Oncology & Developmental Biology, Maastricht University, 6229HX Maastricht, The Netherlands.
- Department of Radiotherapy (MAASTRO), Maastricht University, 6229HX Maastricht, The Netherlands.
| | - Lotte Ejr Schyns
- GROW-School for Oncology & Developmental Biology, Maastricht University, 6229HX Maastricht, The Netherlands.
- Department of Radiotherapy (MAASTRO), Maastricht University, 6229HX Maastricht, The Netherlands.
| | - Roy Fpm Kruitwagen
- GROW-School for Oncology & Developmental Biology, Maastricht University, 6229HX Maastricht, The Netherlands.
- Department of Obstetrics and Gynaecology, Maastricht University Medical Centre, P. Debyelaan 25, 6229HX Maastricht, The Netherlands.
| | - Sofia Xanthoulea
- GROW-School for Oncology & Developmental Biology, Maastricht University, 6229HX Maastricht, The Netherlands.
- Department of Obstetrics and Gynaecology, Maastricht University Medical Centre, P. Debyelaan 25, 6229HX Maastricht, The Netherlands.
| | - Andrea Romano
- GROW-School for Oncology & Developmental Biology, Maastricht University, 6229HX Maastricht, The Netherlands.
- Department of Obstetrics and Gynaecology, Maastricht University Medical Centre, P. Debyelaan 25, 6229HX Maastricht, The Netherlands.
| |
Collapse
|
87
|
Feng HY, Zhang Y, Liu HJ, Dong X, Yang SC, Lu Q, Meng F, Chen HZ, Sun P, Fang C. Characterization of an orthotopic gastric cancer mouse model with lymph node and organ metastases using bioluminescence imaging. Oncol Lett 2018; 16:5179-5185. [PMID: 30250585 PMCID: PMC6144215 DOI: 10.3892/ol.2018.9313] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 12/14/2017] [Accepted: 07/16/2018] [Indexed: 12/19/2022] Open
Abstract
Lymph node (LN) metastasis of gastric cancer (GC) is the strongest prognostic indicator for this disease; however, the majority of the LN metastasis profiles of GC remain unknown, which notably hinders the therapeutic efficacy in clinic. In the present study, an orthotopic model of human GC was established for investigation of time-dependent LN metastasis patterns in mice. Luciferase-expressing NCI-N87 human GC cells were injected into the subserosa of the gastric body, resulting in a tumor formation rate of 100%. LN metastasis at four different anatomical positions in the abdomen were characterized until week 10 after tumor cell injection using sensitive bioluminescence imaging and histopathological analyses. Skip LN metastases were observed at later stages (weeks 8-10) of the experiment. Metastases in other major organs, including liver, spleen and lung, were also examined. Characterization of this orthotopic GC model and metastasis patterns in LNs and major organs should aid in the preclinical GC research regarding the metastatic mechanism and drug development.
Collapse
Affiliation(s)
- Hai-Yi Feng
- Department of General Surgery, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, P.R. China.,Hongqiao International Institute of Medicine, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, P.R. China.,Department of Pharmacology and Chemical Biology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China.,College of Medicine, Yanbian University, Yanji, Jilin 133002, P.R. China
| | - Yunpeng Zhang
- Department of General Surgery, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, P.R. China
| | - Hai-Jun Liu
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, P.R. China.,Department of Pharmacology and Chemical Biology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
| | - Xiao Dong
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, P.R. China.,Department of Pharmacology and Chemical Biology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
| | - Si-Cong Yang
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, P.R. China.,Department of Pharmacology and Chemical Biology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
| | - Qin Lu
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, P.R. China.,Department of Pharmacology and Chemical Biology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
| | - Fanping Meng
- College of Medicine, Yanbian University, Yanji, Jilin 133002, P.R. China
| | - Hong-Zhuan Chen
- Department of Pharmacology and Chemical Biology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
| | - Peng Sun
- Department of General Surgery, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, P.R. China
| | - Chao Fang
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, P.R. China.,Department of Pharmacology and Chemical Biology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
| |
Collapse
|
88
|
Hamblin MR, Abrahamse H. Can light-based approaches overcome antimicrobial resistance? Drug Dev Res 2018; 80:48-67. [PMID: 30070718 DOI: 10.1002/ddr.21453] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [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: 06/04/2018] [Revised: 07/06/2018] [Accepted: 07/07/2018] [Indexed: 01/10/2023]
Abstract
The relentless rise of antibiotic resistance is considered one of the most serious problems facing mankind. This mini-review will cover three cutting-edge approaches that use light-based techniques to kill antibiotic-resistant microbial species, and treat localized infections. First, we will discuss antimicrobial photodynamic inactivation using rationally designed photosensitizes combined with visible light, with the added possibility of strong potentiation by inorganic salts such as potassium iodide. Second, the use of blue and violet light alone that activates endogenous photoactive porphyrins within the microbial cells. Third, it is used for "safe UVC" at wavelengths between 200 nm and 230 nm that can kill microbial cells without damaging host mammalian cells. We have gained evidence that all these approaches can kill multidrug resistant bacteria in vitro, and they do not induce themselves any resistance, and moreover can treat animal models of localized infections caused by resistant species that can be monitored by noninvasive bioluminescence imaging. Light-based antimicrobial approaches are becoming a growing translational part of anti-infective treatments in the current age of resistance.
Collapse
Affiliation(s)
- Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts.,Department of Dermatology, Harvard Medical School, Boston, Massachusetts.,Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, South Africa
| |
Collapse
|
89
|
Cassidy J, Nouri A, Betz V, Lilge L. High-performance, robustly verified Monte Carlo simulation with FullMonte. J Biomed Opt 2018; 23:1-11. [PMID: 30098135 DOI: 10.1117/1.jbo.23.8.085001] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 07/10/2018] [Indexed: 05/21/2023]
Abstract
We introduce the FullMonte tetrahedral 3-D Monte Carlo (MC) software package for simulation, visualization, and analysis of light propagation in heterogeneous turbid media including tissue. It provides the highest computational performance and richest set of input, output, and analysis facilities of any open-source tetrahedral-mesh MC light simulator. It also provides a robust framework for statistical verification. A scripting interface makes set-up of simulation runs simple, including parameter sweeps, while simultaneously providing customization options. Data formats shared with class-leading visualization tools, VTK and Paraview, facilitate interactive generation of publication-quality fluence and irradiance maps. The simulator can read and write file formats supported by other similar simulators, such as TIM-OS, MMC, COMSOL (finite-element simulations), and MCML to support comparison. Where simulator features permit, FullMonte can take a single test case, run it in multiple software packages, and load the results together for comparison. Example meshes, optical properties, set-up scripts, and output files are provided for user convenience. We demonstrate its use in several test cases, including photodynamic therapy of the brain, bioluminescence imaging (BLI) in a mouse phantom, and a comparison against MCML for layered geometries. Application domains that can benefit from use of FullMonte include photodynamic, photothermal, and photobiomodulation therapies, BLI, diffuse optical tomography, MC software development, and biophotonics education. Since MC results may be used for preclinical or even clinical experiments, a robust and rigorous verification process is essential. Being a stochastic numerical method, MC simulation has unique challenges associated with verification of output results since observed differences may be due simply to output variance or actual differences in expected output. We describe and have implemented a rigorous and statistically justified framework for comparing between simulators of the same class and for performing regression testing.
Collapse
Affiliation(s)
| | | | | | - Lothar Lilge
- The Univ. of Toronto, Canada
- Princess Margarent Cancer Ctr., Canada
| |
Collapse
|
90
|
Juršėnaitė J, Girkontaitė I, Šiaurys A, Mauricas M, Characiejus D. Intratumoral Accumulation and Clonal Expansion May Not Be Decisive for Rejection of Allogeneic Tumors by CD8 + T-Lymphocytes. Anticancer Res 2018; 38:4481-4484. [PMID: 30061213 DOI: 10.21873/anticanres.12751] [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: 06/19/2018] [Revised: 06/28/2018] [Accepted: 06/29/2018] [Indexed: 11/10/2022]
Abstract
BACKGROUND The aim of this study was to analyze the spatial distribution and proliferation of adoptively transferred CD8+ T-lymphocytes sensitized against allogeneic tumors. MATERIALS AND METHODS Transgenic β-actin-luc mice that express luciferase were sensitized against allogeneic SL2 lymphoma. CD8+ T-lymphocytes from these mice were transferred to lymphocyte-deficient, recombination activating gene-deficient (Rag-/-) mice bearing SL2 tumors and were tracked using bioluminescence imaging. RESULTS Two out of six Rag-/- mice rejected their tumors. There were no apparent differences in spatial distribution and proliferative intensity of adoptively-transferred CD8+ T-lymphocytes between the two Rag-/- mice that rejected allogeneic SL2 tumors and the four Rag-/- mice that did not. CONCLUSION The pattern of distribution in the mouse body and proliferative intensity of CD8+ T-lymphocytes do not seem to be decisive factors influencing allogeneic tumor rejection.
Collapse
Affiliation(s)
- Jurgita Juršėnaitė
- Department of Immunology, Centre for Innovative Medicine, Vilnius, Lithuania
| | - Irutė Girkontaitė
- Department of Immunology, Centre for Innovative Medicine, Vilnius, Lithuania
| | - Almantas Šiaurys
- Department of Immunology, Centre for Innovative Medicine, Vilnius, Lithuania
| | - Mykolas Mauricas
- Department of Immunology, Centre for Innovative Medicine, Vilnius, Lithuania
| | - Dainius Characiejus
- Department of Immunology, Centre for Innovative Medicine, Vilnius, Lithuania .,Department of Pathology, Forensic Medicine and Pharmacology, Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| |
Collapse
|
91
|
Fan Y, Sun Y, Chang W, Zhang X, Tang J, Zhang L, Liao H. Bioluminescence imaging and two-photon microscopy guided laser ablation of GBM decreases tumor burden. Am J Cancer Res 2018; 8:4072-4085. [PMID: 30128037 PMCID: PMC6096384 DOI: 10.7150/thno.25357] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [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: 02/04/2018] [Accepted: 05/03/2018] [Indexed: 11/25/2022] Open
Abstract
Brain tumor delineation and treatment are the main concerns of neurosurgeons in neurosurgical operations. Bridging the gap between imaging/diagnosis and treatment will provide great convenience for neurosurgeons. Here, we developed an optical theranostics platform that helps to delineate the boundary and quantitatively analyze glioblastoma multiforms (GBMs) with bioluminescence imaging (BLI) to guide laser ablation, and we imaged the GBM cells with two-photon microscopy (TPM) to visualize the laser ablation zone in vivo. Methods: Laser ablation, using the method of coupled ablated path planning with the guidance of BLI, was implemented in vivo for mouse brain tumors. The mapping relationship between semi-quantitative BLI and the laser ablation path was built through the quantitative tumor burden. The mapping was reflected through coupled ablated path planning. The BLI quantitatively and qualitatively evaluated treatment using laser ablation with the appropriate laser parameters and laser-tissue parameters. These parameters were measured after treatment. Furthermore, histopathological analysis of the brain tissue was conducted to compare the TPM images before and after laser ablation and to evaluate the results of in vivo laser ablation. The local recurrences were measured with three separate cohorts. The weights of all of the mice were measured during the experiment. Results: Our in vivo BLI data show that the tumor cell numbers were significantly attenuated after treatment with the optical theranostics platform, and the delineation of GBM margins had clear views to guide the laser resection; the fluorescence intensity in vivo of GBMs quantitatively analyzed the rapid progression of GBMs. The laser-tissue parameters under guidance of multimodality imaging ranged between 1.0 mm and 0.1 mm. The accuracy of the laser ablation reached a submillimeter level, and the resection ratio reached more than 99% under the guidance of BLI. The histopathological sections were compared to TPM images, and the results demonstrated that these images highly coincided. The weight index and local recurrence results demonstrated that the therapeutic effect of the optical theranostics platform was significant. Conclusion: We propose an optical multimodality imaging-guided laser ablation theranostics platform for the treatment of GBMs in an intravital mouse model. The experimental results demonstrated that the integration of multimodality imaging can precisely guide laser ablation for the treatment of GBMs. This preclinical research provides a possibility for the precision treatment of GBMs. The study also provides some theoretical support for clinical research.
Collapse
|
92
|
Enomoto T, Kubota H, Mori K, Shimogawara M, Yoshita M, Ohmiya Y, Akiyama H. Absolute bioluminescence imaging at the single-cell level with a light signal at the Attowatt level. Biotechniques 2018; 64:270-4. [PMID: 29939087 DOI: 10.2144/btn-2018-0043] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Bioluminescence imaging (BLI) demonstrates cellular events as a light signal at the single-cell level using a highly sensitive, cooled CCD camera. However, BLI signals are relative values and thus, images taken on different days or using different equipment cannot be compared directly. We established a reference LED light source that was characteristic of the total flux and light distribution and calibrated the BLI system as an absolute light signal. This calibrated BLI system revealed that the average light signal of beetle luciferase was at an attowatt level per sec at the single cell level.
Collapse
|
93
|
Abstract
Bone constitutes the most common site of breast cancer metastases either at time of presentation or recurrent disease years after seemingly successful therapy. Bone metastases cause substantial morbidity, including life-threatening spinal cord compression and hypercalcemia. Given the high prevalence of patients with breast cancer, health-care costs of bone metastases (>$20,000 per episode) impose a tremendous economic burden on society. To investigate mechanisms of bone metastasis, we developed femoral artery injection of cancer cells as a physiologically relevant model of bone metastasis. Comparing young (∼6 weeks), skeletally immature mice to old (∼6 months) female mice with closed physes (growth plates), we showed significantly greater progression of osteolytic metastases in young animals. Bone destruction increased in the old mice following ovariectomy, emphasizing the pathologic consequences of greater bone turnover and net loss. Despite uniform initial distribution of breast cancer cells throughout the hind limb after femoral artery injection, we observed preferential formation of osteolytic bone metastases in the proximal tibia. Tropism for the proximal tibia arises in part because of TGF-β, a cytokine abundant in both physes of skeletally immature mice and matrix of bone in mice of all ages. We also showed that age-dependent effects on osteolytic bone metastases did not occur in male mice with disseminated breast cancer cells in bone. These studies establish a model system to specifically focus on pathophysiology and treatment of bone metastases and underscore the need to match biologic variables in the model to relevant subsets of patients with breast cancer.
Collapse
Affiliation(s)
- Henry R Haley
- Department of Radiology, University of Michigan Medical School, Ann Arbor, MI
| | - Nathan Shen
- Department of Radiology, University of Michigan Medical School, Ann Arbor, MI
| | - Tonela Qyli
- Department of Radiology, University of Michigan Medical School, Ann Arbor, MI
| | - Johanna M Buschhaus
- Department of Radiology, University of Michigan Medical School, Ann Arbor, MI.,Department of Biomedical Engineering, University of Michigan Medical School, Ann Arbor, MI
| | - Matthew Pirone
- Department of Radiology, University of Michigan Medical School, Ann Arbor, MI
| | - Kathryn E Luker
- Department of Radiology, University of Michigan Medical School, Ann Arbor, MI
| | - Gary D Luker
- Department of Radiology, University of Michigan Medical School, Ann Arbor, MI.,Department of Biomedical Engineering, University of Michigan Medical School, Ann Arbor, MI.,Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI
| |
Collapse
|
94
|
Le TNT, Lim H, Hamilton AM, Parkins KM, Chen Y, Scholl TJ, Ronald JA. Characterization of an Orthotopic Rat Model of Glioblastoma Using Multiparametric Magnetic Resonance Imaging and Bioluminescence Imaging. ACTA ACUST UNITED AC 2018; 4:55-65. [PMID: 30206545 PMCID: PMC6127346 DOI: 10.18383/j.tom.2018.00012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Glioblastoma multiforme (GBM) is the most common primary brain tumor, with most patients dying within 15–18 months of diagnosis despite aggressive therapy. Preclinical GBM models are valuable for exploring GBM progression and for evaluating new therapeutics or imaging approaches. The rat C6 glioma model shares similarities with human GBM, and application of noninvasive imaging enables better study of disease progression. Here, multiparametric magnetic resonance imaging (mpMRI) and bioluminescence imaging (BLI) were applied to characterize longitudinal development of orthotopic luciferase-expressing C6 tumors. Across all rats (n = 11), a large variability was seen for BLI signal, a relative measure of C6 cell viability, but in most individuals, BLI signal peaked at day 11 and decreased thereafter. T2 and contrast-enhanced T1 tumor volumes significantly increased over time (P < .05), and volume measures did not correlate with BLI signal. After day 11, tumor regions of noncontrast enhancement appeared in postcontrast T1-weighted magnetic resonance imaging, and had significantly higher apparent diffusion coefficient values compared with contrast-enhanced regions (P < .05). This suggests formation of ill-perfused, necrotic regions beyond day 11, which were apparent at end-point–matched tissue sections. Our study represents the first combined use of BLI and mpMRI to characterize the progression of disease in the orthotopic C6 rat model, and it highlights the variability in tumor growth, the complementary information from BLI and mpMRI, and the value of multimodality imaging to better characterize tumor development. Future application of these imaging tools will be useful for evaluation of treatment response, and should be pertinent for other preclinical models.
Collapse
Affiliation(s)
- Trung N T Le
- Department of Medical Biophysics, Western University, London, ON, Canada.,Robarts Research Institute, Western University, London, ON, Canada
| | - Heeseung Lim
- Department of Medical Biophysics, Western University, London, ON, Canada.,Robarts Research Institute, Western University, London, ON, Canada
| | | | - Katie M Parkins
- Department of Medical Biophysics, Western University, London, ON, Canada.,Robarts Research Institute, Western University, London, ON, Canada
| | - Yuanxin Chen
- Robarts Research Institute, Western University, London, ON, Canada
| | - Timothy J Scholl
- Department of Medical Biophysics, Western University, London, ON, Canada.,Robarts Research Institute, Western University, London, ON, Canada.,Ontario Institute for Cancer Research, Toronto, ON, Canada; and
| | - John A Ronald
- Department of Medical Biophysics, Western University, London, ON, Canada.,Robarts Research Institute, Western University, London, ON, Canada.,Lawson Health Research Institute, London, ON, Canada
| |
Collapse
|
95
|
Li Y, Liu M, Cui J, Yang K, Zhao L, Gong M, Wang Y, He Y, He T, Bi Y. Hepa1-6-FLuc cell line with the stable expression of firefly luciferase retains its primary properties with promising bioluminescence imaging ability. Oncol Lett 2018; 15:6203-6210. [PMID: 29616102 PMCID: PMC5876459 DOI: 10.3892/ol.2018.8132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 01/01/2018] [Indexed: 01/10/2023] Open
Abstract
Reliable animal models are required for the in vivo study of the molecular mechanisms and effects of chemotherapeutic drugs in hepatocarcinoma. In vivo tracing techniques based on firefly luciferase (FLuc) may optimize the non-invasive monitoring of experimental animals. The present study established a murine Hepa1-6-FLuc cell line that stably expressed a retrovirus-delivered FLuc protein gene. The cell morphology, proliferation, migration and invasion ability of Hepa1-6-FLuc cells were the same as that of the Hepa1-6 cells, and thus is suitable to replace Hepa1-6 cells in the construction of hepatocarcinoma animal models. No differences in subcutaneous tumor mass and its pathomorphology from implanted Hepa1-6-FLuc cells were observed compared with Hepa1-6 control tumors. Bioluminescence imaging indicated that the Luc signal of the Hepa1-6-FLuc cells was consistently strengthened with increases in tumor mass; however, the Luc signal of Hepa1-6-AdFLuc became weaker and eventually disappeared during tumor development. Therefore, compared with the transient expression by adenovirus, stable expression of the FLuc gene in Hepa1-6 cells may better reflect cell proliferation and survival in vivo, and provide a reliable source for the establishment of hepatocarcinoma models.
Collapse
Affiliation(s)
- Yasha Li
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China.,Department of Pediatric Surgery, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China.,Key Laboratory of Pediatrics in Chongqing, International Science and Technology Cooperation Base of Child Development and Critical Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Mengnan Liu
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China.,Department of Pediatric Surgery, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Jiejie Cui
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China.,Department of Pediatric Surgery, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China.,Key Laboratory of Pediatrics in Chongqing, International Science and Technology Cooperation Base of Child Development and Critical Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Ke Yang
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China.,Key Laboratory of Pediatrics in Chongqing, International Science and Technology Cooperation Base of Child Development and Critical Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Li Zhao
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China.,Key Laboratory of Pediatrics in Chongqing, International Science and Technology Cooperation Base of Child Development and Critical Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Mengjia Gong
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China.,Key Laboratory of Pediatrics in Chongqing, International Science and Technology Cooperation Base of Child Development and Critical Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Yi Wang
- Department of Pediatric Surgery, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Yun He
- Department of Pediatric Surgery, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Tongchuan He
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China.,Department of Pediatric Surgery, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China.,Key Laboratory of Pediatrics in Chongqing, International Science and Technology Cooperation Base of Child Development and Critical Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Yang Bi
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China.,Department of Pediatric Surgery, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China.,Key Laboratory of Pediatrics in Chongqing, International Science and Technology Cooperation Base of Child Development and Critical Disorders, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| |
Collapse
|
96
|
Menini S, Iacobini C, de Latouliere L, Manni I, Ionta V, Blasetti Fantauzzi C, Pesce C, Cappello P, Novelli F, Piaggio G, Pugliese G. The advanced glycation end-product N ϵ -carboxymethyllysine promotes progression of pancreatic cancer: implications for diabetes-associated risk and its prevention. J Pathol 2018. [PMID: 29533466 DOI: 10.1002/path.5072] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Diabetes is an established risk factor for pancreatic cancer (PaC), together with obesity, a Western diet, and tobacco smoking. The common mechanistic link might be the accumulation of advanced glycation end-products (AGEs), which characterizes all of the above disease conditions and unhealthy habits. Surprisingly, however, the role of AGEs in PaC has not been examined yet, despite the evidence of a tumour-promoting role of receptor for advanced glycation end-products (RAGE), the receptor for AGEs. Here, we tested the hypothesis that AGEs promote PaC through RAGE activation. To this end, we investigated the effects of the AGE Nϵ -carboxymethyllysine (CML) in human pancreatic ductal adenocarcinoma (PDA) cell lines and in a mouse model of Kras-driven PaC interbred with a bioluminescent model of proliferation. Tumour growth was monitored in vivo by bioluminescence imaging and confirmed by histology. CML promoted PDA cell growth and RAGE expression, in a concentration-dependent and time-dependent manner, and activated downstream tumourigenic signalling pathways. These effects were counteracted by RAGE antagonist peptide (RAP). Exogenous AGE administration to PaC-prone mice induced RAGE upregulation in pancreatic intraepithelial neoplasias (PanINs) and markedly accelerated progression to invasive PaC. At 11 weeks of age (6 weeks of CML treatment), PaC was observed in eight of 11 (72.7%) CML-treated versus one of 11 (9.1%) vehicle-treated [control (Ctr)] mice. RAP delayed PanIN development in Ctr mice but failed to prevent PaC promotion in CML-treated mice, probably because of competition with soluble RAGE for binding to AGEs and/or compensatory upregulation of the RAGE homologue CD166/ activated leukocyte cell adhesion molecule, which also favoured tumour spread. These findings indicate that AGEs modulate the development and progression of PaC through receptor-mediated mechanisms, and might be responsible for the additional risk conferred by diabetes and other conditions characterized by increased AGE accumulation. Finally, our data suggest that an AGE reduction strategy, instead of RAGE inhibition, might be suitable for the risk management and prevention of PaC. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- Stefano Menini
- Department of Clinical and Molecular Medicine, 'La Sapienza' University, Rome, Italy
| | - Carla Iacobini
- Department of Clinical and Molecular Medicine, 'La Sapienza' University, Rome, Italy
| | - Luisa de Latouliere
- Department of Clinical and Molecular Medicine, 'La Sapienza' University, Rome, Italy
| | - Isabella Manni
- Department of Research, Advanced Diagnostics, and Technological Innovation, Regina Elena National Cancer Institute, Rome, Italy
| | - Vittoria Ionta
- Department of Clinical and Molecular Medicine, 'La Sapienza' University, Rome, Italy
| | | | - Carlo Pesce
- DINOGMI, University of Genoa Medical School, Genoa, Italy
| | - Paola Cappello
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Francesco Novelli
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Giulia Piaggio
- Department of Research, Advanced Diagnostics, and Technological Innovation, Regina Elena National Cancer Institute, Rome, Italy
| | - Giuseppe Pugliese
- Department of Clinical and Molecular Medicine, 'La Sapienza' University, Rome, Italy
| |
Collapse
|
97
|
Imamura T, Saitou T, Kawakami R. In vivo optical imaging of cancer cell function and tumor microenvironment. Cancer Sci 2018; 109:912-918. [PMID: 29465804 PMCID: PMC5891206 DOI: 10.1111/cas.13544] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [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: 12/25/2017] [Revised: 02/12/2018] [Accepted: 02/14/2018] [Indexed: 02/04/2023] Open
Abstract
In vivo optical imaging using fluorescence and bioluminescence is superior to other methods in terms of spatiotemporal resolution and specificity, and represents a new technology for comprehensively studying living organisms in a less invasive way. Nowadays, it is an indispensable technology for studying many aspects of cancer biology, including dynamic invasion and metastasis. In observations of fluorescence or bioluminescence signals in a living body, various problems were caused by optical characteristics such as absorption and scattering and, therefore, observation of deep tissue was difficult. Recent developments in techniques for observation of the deep tissues of living animals overcame this difficulty by improving bioluminescent proteins, fluorescent proteins, and fluorescent dyes, as well as detection technologies such as two‐photon excitation microscopy. In the present review, we introduce these technological developments and in vivo application of bioluminescence and fluorescence imaging, and discuss future perspectives on the use of in vivo optical imaging technology in cancer research.
Collapse
Affiliation(s)
- Takeshi Imamura
- Department of Molecular Medicine for Pathogenesis, Ehime University Graduate School of Medicine, Toon, Japan.,Translational Research Center, Ehime University Hospital, Toon, Japan
| | - Takashi Saitou
- Department of Molecular Medicine for Pathogenesis, Ehime University Graduate School of Medicine, Toon, Japan.,Translational Research Center, Ehime University Hospital, Toon, Japan
| | - Ryosuke Kawakami
- Department of Molecular Medicine for Pathogenesis, Ehime University Graduate School of Medicine, Toon, Japan
| |
Collapse
|
98
|
Abstract
Macrophages are an important component of host defense and inflammation and play a pivotal role in immune regulation, tissue remodeling, and metabolic regulation. Since macrophages are ubiquitous in human bodies and have versatile physiological functions, they are involved in virtually every disease, including cancer, diabetes, multiple sclerosis, and atherosclerosis. Molecular biological and histological methods have provided critical information on macrophage biology. However, many in vivo dynamic behaviors of macrophages are poorly understood and yet to be discovered. A better understanding of macrophage functions and dynamics in pathogenesis will open new opportunities for better diagnosis, prognostic assessment, and therapeutic intervention. In this article, we will review the advances in macrophage tracking and analysis with in vivo optical imaging in the context of different diseases. Moreover, this review will cover the challenges and solutions for optical imaging techniques during macrophage intravital imaging.
Collapse
Affiliation(s)
- Yue Li
- Faculty of Health Sciences, University of Macau, Macao, China
| | - Tzu-Ming Liu
- Faculty of Health Sciences, University of Macau, Macao, China
| |
Collapse
|
99
|
Abstract
Microglia are the principle immune cells of the brain. Once activated, microglial cells may exhibit a wide repertoire of the context-dependent profiles ranging from highly neurotoxic to more protective and pro-regenerative cellular phenotypes. While to date the mechanisms involved in the molecular regulation of the microglia polarization phenotypes remain elusive, growing evidence suggests that gender may markedly affect the inflammatory and/or glial responses following brain injuries. In the recent years, special attention has been given to the role of microglia in sexual dimorphism, both in healthy brain and diseased brain. Here, we review recent advances revealing microglia as an important determinant of gender differences under physiological conditions and in injured brain. We also discuss how microglia-driven innate immunity and signaling pathways might be involved in the sex-dependent responses following brain ischemic injury. Finally we describe how advanced methods such as live imaging techniques may help elucidate the role of microglia in the modulation of immune responses and gender difference after stroke.
Collapse
Affiliation(s)
- Reza Rahimian
- Department of Psychiatry and Neuroscience, Faculty of Medicine, CERVO Brain Research Centre, Laval University, Quebec, Quebec G1J 2G3, Canada
| | - Pierre Cordeau
- Department of Psychiatry and Neuroscience, Faculty of Medicine, CERVO Brain Research Centre, Laval University, Quebec, Quebec G1J 2G3, Canada
| | - Jasna Kriz
- Department of Psychiatry and Neuroscience, Faculty of Medicine, CERVO Brain Research Centre, Laval University, Quebec, Quebec G1J 2G3, Canada.
| |
Collapse
|
100
|
Xu P, Xu N, Guo K, Xu A, Takenaka F, Matsuura E, Liu C, Kumon H, Huang P. Real-time monitoring of tumor progression and drug responses in a preclinical mouse model of prostate cancer. Oncotarget 2018; 7:33025-34. [PMID: 27105511 PMCID: PMC5078072 DOI: 10.18632/oncotarget.8846] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Accepted: 03/31/2016] [Indexed: 11/25/2022] Open
Abstract
Monitoring disease progression through imaging is playing an increasingly important role in the treatment of prostate cancer. Here, we report that primary mouse prostate cancer cell lines stably expressing luciferase and tumor biomarkers can be monitored through bioluminescence imaging along with assays of serum biomarkers and immune function. Tumorigenesis in immunocompetent C57BL/6 mice can be monitored in by collecting samples from the dorsal flank, dorsolateral prostate, and tail vein to obtain real-time subcutaneous, orthotopic, and metastasis indicators, respectively. We used this technique to confirm the therapeutic effect of immune checkpoint blockade. Our findings suggest the presented indicators are ideally suited for real-time tracking of drug responses, tumor progression and immune function.
Collapse
Affiliation(s)
- Peng Xu
- Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China.,Department of Urology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Naijin Xu
- Department of Urology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Kai Guo
- Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China.,Department of Urology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Abai Xu
- Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Fumiaki Takenaka
- Okayama Medical Innovation Center, Okayama University, Okayama, Japan
| | - Eiji Matsuura
- Okayama Medical Innovation Center, Okayama University, Okayama, Japan
| | - Chunxiao Liu
- Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Hiromi Kumon
- Innovation Center Okayama for Nanobio-Targeted Therapy, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Peng Huang
- Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China.,Department of Urology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.,Okayama Medical Innovation Center, Okayama University, Okayama, Japan
| |
Collapse
|