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Li S, Wang K, Wang Z, Zhang W, Liu Z, Cheng Y, Zhu J, Zhong M, Hu S, Zhang Y. Application and trend of bioluminescence imaging in metabolic syndrome research. Front Chem 2023; 10:1113546. [PMID: 36700071 PMCID: PMC9868317 DOI: 10.3389/fchem.2022.1113546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 12/20/2022] [Indexed: 01/11/2023] Open
Abstract
Bioluminescence imaging is a non-invasive technology used to visualize physiological processes in animals and is useful for studying the dynamics of metabolic syndrome. Metabolic syndrome is a broad spectrum of diseases which are rapidly increasing in prevalence, and is closely associated with obesity, type 2 diabetes, nonalcoholic fatty liver disease, and circadian rhythm disorder. To better serve metabolic syndrome research, researchers have established a variety of animal models expressing luciferase, while also committing to finding more suitable luciferase promoters and developing more efficient luciferase-luciferin systems. In this review, we systematically summarize the applications of different models for bioluminescence imaging in the study of metabolic syndrome.
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Affiliation(s)
- Shirui Li
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Kang Wang
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, China,Postgraduate Department, Shandong First Medical University, Jinan, China
| | - Zeyu Wang
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, China,Postgraduate Department, Shandong First Medical University, Jinan, China
| | - Wenjie Zhang
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Zenglin Liu
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Yugang Cheng
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Jiankang Zhu
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Mingwei Zhong
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Sanyuan Hu
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China,Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, China,*Correspondence: Sanyuan Hu, ; Yun Zhang,
| | - Yun Zhang
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China,Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, China,*Correspondence: Sanyuan Hu, ; Yun Zhang,
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Zheng L, Wang Y, Yang B, Zhang B, Wu Y. Islet Transplantation Imaging in vivo. Diabetes Metab Syndr Obes 2020; 13:3301-3311. [PMID: 33061492 PMCID: PMC7520574 DOI: 10.2147/dmso.s263253] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 07/29/2020] [Indexed: 12/31/2022] Open
Abstract
Although islet transplantation plays an effective and powerful role in the treatment of diabetes, a large amount of islet grafts are lost at an early stage due to instant blood-mediated inflammatory reactions, immune rejection, and β-cell toxicity resulting from immunosuppressive agents. Timely intervention based on the viability and function of the transplanted islets at an early stage is crucial. Various islet transplantation imaging techniques are available for monitoring the conditions of post-transplanted islets. Due to the development of various imaging modalities and the continuous study of contrast agents, non-invasive islet transplantation imaging in vivo has made great progress. The tracing and functional evaluation of transplanted islets in vivo have thus become possible. However, most studies on contrast agent and imaging modalities are limited to animal experiments, and long-term toxicity and stability need further evaluation. Accordingly, the clinical application of the current achievements still requires a large amount of effort. In this review, we discuss the contrast agents for MRI, SPECT/PET, BLI/FI, US, MPI, PAI, and multimodal imaging. We further summarize the advantages and limitations of various molecular imaging methods.
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Affiliation(s)
- Lei Zheng
- Department of Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou310000, People’s Republic of China
| | - Yinghao Wang
- Department of Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou310000, People’s Republic of China
| | - Bin Yang
- Department of Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou310000, People’s Republic of China
- Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Cancer Institute, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou310000, People’s Republic of China
| | - Bo Zhang
- Department of Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou310000, People’s Republic of China
- Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Cancer Institute, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou310000, People’s Republic of China
- Correspondence: Bo Zhang; Yulian Wu Department of Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou310000, People’s Republic of China Tel/Fax +86 571 87783563 Email ;
| | - Yulian Wu
- Department of Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou310000, People’s Republic of China
- Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Cancer Institute, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou310000, People’s Republic of China
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Zhang L, Wang L, Lei M, Ma R, Yu F, Liu C, Yin D. Generation and identification of a thyroid cancer cell line with stable expression of CCDC67 and luciferase reporter genes. Oncol Lett 2019; 18:4495-4502. [PMID: 31611958 PMCID: PMC6781759 DOI: 10.3892/ol.2019.10839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 07/09/2019] [Indexed: 11/06/2022] Open
Abstract
Coiled-coil domain containing 67 (CCDC67) gene is a tumor suppressor gene that exhibits a significant inhibitory effect on a variety of tumors. Our previous study demonstrated that the upregulation of CCDC67 gene in TPC-1 cells inhibited cell proliferation, migration and invasion, and promoted apoptosis in vitro. However, due to the lack of a suitable cell tool, these results were not validated in vivo. In the present study, a thyroid cancer cell line with stable expression of CCDC67 and luciferase reporter genes was generated and identified. Firstly, cDNA clones of the CCDC67 gene were obtained by reverse transcription using a custom-designed primer. The results of subsequent electrophoresis analysis and sequencing revealed that the cDNA clones of CCDC67 gene were obtained successfully, with a length of 1,862 bp. The lentiviral vectors, containing the CCDC67, luciferase reporter and puromycin acetyltransferase genes, were co-transfected with two plasmids that encode lentiviral structural proteins and envelope proteins into 293T cells. Following ultracentrifugation, the titer of lentivirus was determined by ELISA to be 5.0×108 TU/ml. The constructed lentiviral vector was used to transfect TPC-1 thyroid cancer cells, and stabilization was achieved by puromycin screening. The expression of CCDC67 gene, luciferase activity and tumorigenic ability of the generated cell line were detected. Reverse transcription-qPCR results demonstrated that the expression levels of CCDC67 gene in TPC-1 cells following transfection were increased 194,46.782-fold compared with those in the negative control group (P<0.01). A higher fluorescence intensity was detected in the generated cell line, while no detectable fluorescence was observed in untransfected TPC-1 cells. The tumorigenic ability of TPC-1-Luc-Puromycin-CCDC67 cells was verified by bioluminescence imaging and histopathological analysis using a pulmonary metastasis model. These results demonstrated that a thyroid cancer cell line with stable expression of CCDC67 and luciferase reporter genes was generated successfully. The TPC-1-Luc-Puromycin-CCDC67 cell line may be a helpful tool for further research on CCDC67 in vivo.
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Affiliation(s)
- Lele Zhang
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China.,Department of Thyroid Surgery, Key Discipline Laboratory of Clinical Medicine of Henan, Zhengzhou, Henan 450050, P.R. China
| | - Longlong Wang
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China.,Department of Thyroid Surgery, Key Discipline Laboratory of Clinical Medicine of Henan, Zhengzhou, Henan 450050, P.R. China
| | - Mengyuan Lei
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China.,Department of Thyroid Surgery, Key Discipline Laboratory of Clinical Medicine of Henan, Zhengzhou, Henan 450050, P.R. China
| | - Runsheng Ma
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China.,Department of Thyroid Surgery, Key Discipline Laboratory of Clinical Medicine of Henan, Zhengzhou, Henan 450050, P.R. China
| | - Fangqin Yu
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China.,Department of Thyroid Surgery, Key Discipline Laboratory of Clinical Medicine of Henan, Zhengzhou, Henan 450050, P.R. China
| | - Chenguang Liu
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China.,Department of Thyroid Surgery, Key Discipline Laboratory of Clinical Medicine of Henan, Zhengzhou, Henan 450050, P.R. China
| | - Detao Yin
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China.,Department of Thyroid Surgery, Key Discipline Laboratory of Clinical Medicine of Henan, Zhengzhou, Henan 450050, P.R. China
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Wu MR, Hsiao JK, Liu HM, Huang YY, Tseng YJ, Chou PT, Weng TI, Yang CY. In vivo imaging of insulin-secreting human pancreatic ductal cells using MRI reporter gene technique: A feasibility study. Magn Reson Med 2019; 82:763-774. [PMID: 30957300 DOI: 10.1002/mrm.27749] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 02/27/2019] [Accepted: 03/02/2019] [Indexed: 12/20/2022]
Abstract
PURPOSE The purpose of this study was to investigate the feasibility of in vivo imaging of human pancreatic ductal cells by OATP1B3 reporter gene under MRI. METHODS A human cell line (PANC-1) derived from the pancreatic ductal epithelium was used in this study. After transduction of OATP1B3, the cellular physiological functions and the ability of intracellular uptake of the MRI contrast medium (Gd-EOB-DTPA) were examined. Induced differentiation of the PANC-1 cells into hormone-secreting cells were performed to simulate pancreatic β-like cells. The hormone-secreting cells were implanted into rats and in vivo MRI was evaluated. RESULTS The mRNA and proteins of OATP1B3 were highly expressed. No significant change of cellular physiological functions was found after the expression. After induced differentiation, the hormone secretion capacities of the OATP1B3-expressing PANC-1 cells were confirmed. Intra-cellular uptake of Gd-EOB-DTPA was determined in vitro by inductively coupled plasma mass spectrometry and MRI. In vivo MRI of the OATP1B3-expressing xenograft revealed an increased signal intensity after contrast enhancement. CONCLUSION OATP1B3 can be used as a safe and feasible in vivo MRI gene reporter for human pancreatic ductal cells.
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Affiliation(s)
- Menq-Rong Wu
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan.,Department of Medical Imaging, Buddhist Tzu Chi General Hospital, Taipei Branch, New Taipei city, Taiwan
| | - Jong-Kai Hsiao
- Department of Medical Imaging, Buddhist Tzu Chi General Hospital, Taipei Branch, New Taipei city, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Hon-Man Liu
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan.,Department of Radiology, National Taiwan University College of Medicine, Taipei, Taiwan.,Department of Radiology and Medical Imaging, Fu-Jen Catholic University and Hospital, New Taipei City, Taiwan
| | - Yi-You Huang
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan
| | - Yu-Jui Tseng
- Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, Taipei, Taiwan
| | - Pi-Tai Chou
- Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, Taipei, Taiwan
| | - Te-I Weng
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chung-Yi Yang
- Department of Radiology, National Taiwan University College of Medicine, Taipei, Taiwan.,Department of Medical Imaging, E-Da Hospital, I-Shou University, Kaohsiung City, Taiwan.,School of Medicine for International Students, I-Shou University, Kaohsiung City, Taiwan
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Jodal A, Schibli R, Béhé M. Targets and probes for non-invasive imaging of β-cells. Eur J Nucl Med Mol Imaging 2016; 44:712-727. [PMID: 28025655 PMCID: PMC5323463 DOI: 10.1007/s00259-016-3592-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 12/01/2016] [Indexed: 12/16/2022]
Abstract
β-cells, located in the islets of the pancreas, are responsible for production and secretion of insulin and play a crucial role in blood sugar regulation. Pathologic β-cells often cause serious medical conditions affecting blood glucose level, which severely impact life quality and are life-threatening if untreated. With 347 million patients, diabetes is one of the most prevalent diseases, and will continue to be one of the largest socioeconomic challenges in the future. The diagnosis still relies mainly on indirect methods like blood sugar measurements. A non-invasive diagnostic imaging modality would allow direct evaluation of β-cell mass and would be a huge step towards personalized medicine. Hyperinsulinism is another serious condition caused by β-cells that excessively secrete insulin, like for instance β-cell hyperplasia and insulinomas. Treatment options with drugs are normally not curative, whereas curative procedures usually consist of the resection of affected regions for which, however, an exact localization of the foci is necessary. In this review, we describe potential tracers under development for targeting β-cells with focus on radiotracers for PET and SPECT imaging, which allow the non-invasive visualization of β-cells. We discuss either the advantages or limitations for the various tracers and modalities. This article concludes with an outlook on future developments and discuss the potential of new imaging probes including dual probes that utilize functionalities for both a radioactive and optical moiety as well as for theranostic applications.
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Affiliation(s)
- Andreas Jodal
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institut, 5232, Villigen, Switzerland
| | - Roger Schibli
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institut, 5232, Villigen, Switzerland.,Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Martin Béhé
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institut, 5232, Villigen, Switzerland.
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Nagasaki H, Katsumata T, Oishi H, Tai PH, Sekiguchi Y, Koshida R, Jung Y, Kudo T, Takahashi S. Generation of insulin-producing cells from the mouse liver using β cell-related gene transfer including Mafa and Mafb. PLoS One 2014; 9:e113022. [PMID: 25397325 PMCID: PMC4232560 DOI: 10.1371/journal.pone.0113022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Accepted: 10/20/2014] [Indexed: 12/30/2022] Open
Abstract
Recent studies on the large Maf transcription factors have shown that Mafb and Mafa have respective and distinctive roles in β-cell development and maturation. However, whether this difference in roles is due to the timing of the gene expression (roughly, expression of Mafb before birth and of Mafa after birth) or to the specific function of each gene is unclear. Our aim was to examine the functional differences between these genes that are closely related to β cells by using an in vivo model of β-like cell generation. We monitored insulin gene transcription by measuring bioluminescence emitted from the liver of insulin promoter-luciferase transgenic (MIP-Luc-VU) mice. Adenoviral gene transfers of Pdx1/Neurod/Mafa (PDA) and Pdx1/Neurod/Mafb (PDB) combinations generated intense luminescence from the liver that lasted for more than 1 week and peaked at 3 days after transduction. The peak signal intensities of PDA and PDB were comparable. However, PDA but not PDB transfer resulted in significant bioluminescence on day 10, suggesting that Mafa has a more sustainable role in insulin gene activation than does Mafb. Both PDA and PDB transfers ameliorated the glucose levels in a streptozotocin (STZ)-induced diabetic model for up to 21 days and 7 days, respectively. Furthermore, PDA transfer induced several gene expressions necessary for glucose sensing and insulin secretion in the liver on day 9. However, a glucose tolerance test and liver perfusion experiment did not show glucose-stimulated insulin secretion from intrahepatic β-like cells. These results demonstrate that bioluminescence imaging in MIP-Luc-VU mice provides a noninvasive means of detecting β-like cells in the liver. They also show that Mafa has a markedly intense and sustained role in β-like cell production in comparison with Mafb.
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Affiliation(s)
- Haruka Nagasaki
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Tokio Katsumata
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hisashi Oishi
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Life Science Center, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, Ibaraki, Japan
- * E-mail: (HO); (ST)
| | - Pei-Han Tai
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yukari Sekiguchi
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Ryusuke Koshida
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yunshin Jung
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takashi Kudo
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Satoru Takahashi
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Life Science Center, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, Ibaraki, Japan
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki, Japan
- * E-mail: (HO); (ST)
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Mizuno S, Dinh TTH, Kato K, Mizuno-Iijima S, Tanimoto Y, Daitoku Y, Hoshino Y, Ikawa M, Takahashi S, Sugiyama F, Yagami KI. Simple generation of albino C57BL/6J mice with G291T mutation in the tyrosinase gene by the CRISPR/Cas9 system. Mamm Genome 2014; 25:327-34. [DOI: 10.1007/s00335-014-9524-0] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 04/25/2014] [Indexed: 01/28/2023]
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Katsumata T, Oishi H, Sekiguchi Y, Nagasaki H, Daassi D, Tai PH, Ema M, Kudo T, Takahashi S. Bioluminescence imaging of β cells and intrahepatic insulin gene activity under normal and pathological conditions. PLoS One 2013; 8:e60411. [PMID: 23593212 PMCID: PMC3617225 DOI: 10.1371/journal.pone.0060411] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Accepted: 02/27/2013] [Indexed: 01/19/2023] Open
Abstract
In diabetes research, bioluminescence imaging (BLI) has been applied in studies of β-cell impairment, development, and islet transplantation. To develop a mouse model that enables noninvasive imaging of β cells, we generated a bacterial artificial chromosome (BAC) transgenic mouse in which a mouse 200-kbp genomic fragment comprising the insulin I gene drives luciferase expression (Ins1-luc BAC transgenic mouse). BLI of mice was performed using the IVIS Spectrum system after intraperitoneal injection of luciferin, and the bioluminescence signal from the pancreatic region analyzed. When compared with MIP-Luc-VU mice [FVB/N-Tg(Ins1-luc)VUPwrs/J] expressing luciferase under the control of the 9.2-kbp mouse insulin I promoter (MIP), the bioluminescence emission from Ins1-luc BAC transgenic mice was enhanced approximately 4-fold. Streptozotocin-treated Ins1-luc BAC transgenic mice developed severe diabetes concomitant with a sharp decline in the BLI signal intensity in the pancreas. Conversely, mice fed a high-fat diet for 8 weeks showed an increase in the signal, reflecting a decrease or increase in the β-cell mass. Although the bioluminescence intensity of the islets correlated well with the number of isolated islets in vitro, the intensity obtained from a living mouse in vivo did not necessarily reflect an absolute quantification of the β-cell mass under pathological conditions. On the other hand, adenovirus-mediated gene transduction of β-cell-related transcription factors in Ins1-luc BAC transgenic mice generated luminescence from the hepatic region for more than 1 week. These results demonstrate that BLI in Ins1-luc BAC transgenic mice provides a noninvasive method of imaging islet β cells and extrapancreatic activity of the insulin gene in the liver under normal and pathological conditions.
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Affiliation(s)
- Tokio Katsumata
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tennodai, Tsukuba, Ibaraki, Japan
| | - Hisashi Oishi
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tennodai, Tsukuba, Ibaraki, Japan
| | - Yukari Sekiguchi
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tennodai, Tsukuba, Ibaraki, Japan
| | - Haruka Nagasaki
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tennodai, Tsukuba, Ibaraki, Japan
| | - Dhouha Daassi
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tennodai, Tsukuba, Ibaraki, Japan
| | - Pei-Han Tai
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tennodai, Tsukuba, Ibaraki, Japan
| | - Masatsugu Ema
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tennodai, Tsukuba, Ibaraki, Japan
| | - Takashi Kudo
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tennodai, Tsukuba, Ibaraki, Japan
| | - Satoru Takahashi
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tennodai, Tsukuba, Ibaraki, Japan
- * E-mail:
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Hasegawa Y, Daitoku Y, Sekiguchi K, Tanimoto Y, Mizuno-Iijima S, Mizuno S, Kajiwara N, Ema M, Miwa Y, Mekada K, Yoshiki A, Takahashi S, Sugiyama F, Yagami KI. Novel ROSA26 Cre-reporter knock-in C57BL/6N mice exhibiting green emission before and red emission after Cre-mediated recombination. Exp Anim 2013; 62:295-304. [PMID: 24172193 PMCID: PMC4160954 DOI: 10.1538/expanim.62.295] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2013] [Accepted: 04/22/2013] [Indexed: 12/04/2022] Open
Abstract
The Cre/loxP system is a strategy for controlling temporal and/or spatial gene expression through genome alteration in mice. As successful Cre/loxP genome alteration depends on Cre-driver mice, Cre-reporter mice are essential for validation of Cre gene expression in vivo. In most Cre-reporter mouse strains, although the presence of reporter product indicates the expression of Cre recombinase, it has remained unclear whether a lack of reporter signal indicates either no Cre recombinase expression or insufficient reporter gene promoter activity. We produced a novel ROSA26 knock-in Cre-reporter C57BL/6N strain exhibiting green emission before and red after Cre-mediated recombination, designated as strain R26GRR. Ubiquitous green fluorescence and no red fluorescence were observed in R26GRR mice. To investigate the activation of tdsRed, EGFP-excised R26GRR, R26RR, mice were produced through the crossing of C57BL/6N mice with R26GRR/Ayu1-Cre F1 mice. R26RR mice showed extraordinarily strong red fluorescence in almost all tissues examined, suggesting ubiquitous activation of the second reporter in all tissues after Cre/loxP recombination. Moreover, endothelial cell lineage and pancreatic islet-specific expression of red fluorescence were detected in R26GRR/Tie2-Cre F1 mice and R26GRR /Ins1-Cre F1 mice, respectively. These results indicated that R26GRR mice are a useful novel Cre-reporter mouse strain. In addition, R26GRR mice with a pure C57BL/6N background represent a valuable source of green-to-red photoconvertible cells following Cre/loxP recombination for application in transplantation studies. The R26GRR mouse strain will be available from RIKEN BioResource Center (http://www.brc.riken.jp/lab/animal/en/).
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Affiliation(s)
- Yoshikazu Hasegawa
- Laborarory Animal Resource Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
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