1
|
Yang L, Webb SE, Jin N, Lee HM, Chan TF, Xu G, Chan JC, Miller AL, Ma RC. Investigating the role of dachshund b in the development of the pancreatic islet in zebrafish. J Diabetes Investig 2021; 12:710-727. [PMID: 33449448 PMCID: PMC8089008 DOI: 10.1111/jdi.13503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 12/28/2020] [Accepted: 01/01/2021] [Indexed: 12/29/2022] Open
Abstract
Aims/Introduction β‐Cell dysfunction is a hallmark of type 2 diabetes. In a previous pilot study, we identified an association between genetic variants within the human DACH1 gene and young‐onset type 2 diabetes. Here, we characterized the function of dachb, the only dach homologue to be expressed in the pancreas, in developing zebrafish embryos. Materials and Methods We injected one‐cell stage embryos with a dachb‐morpholino (MO) or with the dachb‐MO and dachb messenger ribonucleic acid, and determined the effect on the development of the pancreatic islet. We also carried out quantitative polymerase chain reaction and ribonucleic acid sequencing on the dachb‐MO group to determine the effect of dachb knockdown on gene expression. Results MO‐mediated dachb knockdown resulted in impaired islet cell development, with a significant decrease in both the β‐cell and islet cell numbers. This islet developmental defect was rescued when embryos were co‐injected with dachb‐MO and dachb messenger ribonucleic acid. Knockdown of dachb was associated with a significant downregulation of the β‐cell specific marker gene, insa, and the somatostatin cell marker, sst2, as well as regulators of pancreas development, ptf1a, neuroD, pax6a and nkx6.1, and the cell cycle gene, insm1a. Furthermore, ribonucleic sequencing analysis showed an upregulation of genes enriched in the forkhead box O and mitogen‐activated protein kinase signaling pathways in the dachb‐MO group, when compared with the control groups. Conclusions Together, our results suggest the possible role of dachb in islet development in zebrafish.
Collapse
Affiliation(s)
- Lingling Yang
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
| | - Sarah E Webb
- Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
| | - Nana Jin
- School of Life Sciences and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Heung Man Lee
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong.,Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
| | - Ting Fung Chan
- School of Life Sciences and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Gang Xu
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong.,Teaching and Research Division, Hong Kong Baptist University, Kowloon Tong, Hong Kong
| | - Juliana Cn Chan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong.,Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong.,Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Andrew L Miller
- Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
| | - Ronald Cw Ma
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong.,Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong.,Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Shatin, Hong Kong
| |
Collapse
|
2
|
van de Venter M, Didloff J, Reddy S, Swanepoel B, Govender S, Dambuza NS, Williams S, Koekemoer TC, Venables L. Wild-Type Zebrafish ( Danio rerio) Larvae as a Vertebrate Model for Diabetes and Comorbidities: A Review. Animals (Basel) 2020; 11:E54. [PMID: 33396883 PMCID: PMC7824285 DOI: 10.3390/ani11010054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/23/2020] [Accepted: 12/23/2020] [Indexed: 12/12/2022] Open
Abstract
Zebrafish have become a popular alternative to higher animals in biomedical and pharmaceutical research. The development of stable mutant lines to model target specific aspects of many diseases, including diabetes, is well reported. However, these mutant lines are much more costly and challenging to maintain than wild-type zebrafish and are simply not an option for many research facilities. As an alternative to address the disadvantages of advanced mutant lines, wild-type larvae may represent a suitable option. In this review, we evaluate organ development in zebrafish larvae and discuss established methods that use wild-type zebrafish larvae up to seven days post fertilization to test for potential drug candidates for diabetes and its commonly associated conditions of oxidative stress and inflammation. This provides an up to date overview of the relevance of wild-type zebrafish larvae as a vertebrate antidiabetic model and confidence as an alternative tool for preclinical studies. We highlight the advantages and disadvantages of established methods and suggest recommendations for future developments to promote the use of zebrafish, specifically larvae, rather than higher animals in the early phase of antidiabetic drug discovery.
Collapse
Affiliation(s)
- Maryna van de Venter
- Department of Biochemistry and Microbiology, Nelson Mandela University, PO Box 77000, Port Elizabeth 6031, South Africa; (J.D.); (S.R.); (B.S.); (S.G.); (S.W.); (T.C.K.); (L.V.)
| | - Jenske Didloff
- Department of Biochemistry and Microbiology, Nelson Mandela University, PO Box 77000, Port Elizabeth 6031, South Africa; (J.D.); (S.R.); (B.S.); (S.G.); (S.W.); (T.C.K.); (L.V.)
| | - Shanika Reddy
- Department of Biochemistry and Microbiology, Nelson Mandela University, PO Box 77000, Port Elizabeth 6031, South Africa; (J.D.); (S.R.); (B.S.); (S.G.); (S.W.); (T.C.K.); (L.V.)
| | - Bresler Swanepoel
- Department of Biochemistry and Microbiology, Nelson Mandela University, PO Box 77000, Port Elizabeth 6031, South Africa; (J.D.); (S.R.); (B.S.); (S.G.); (S.W.); (T.C.K.); (L.V.)
| | - Sharlene Govender
- Department of Biochemistry and Microbiology, Nelson Mandela University, PO Box 77000, Port Elizabeth 6031, South Africa; (J.D.); (S.R.); (B.S.); (S.G.); (S.W.); (T.C.K.); (L.V.)
| | - Ntokozo Shirley Dambuza
- Department of Pharmacy, Nelson Mandela University, PO Box 77000, Port Elizabeth 6031, South Africa;
| | - Saralene Williams
- Department of Biochemistry and Microbiology, Nelson Mandela University, PO Box 77000, Port Elizabeth 6031, South Africa; (J.D.); (S.R.); (B.S.); (S.G.); (S.W.); (T.C.K.); (L.V.)
| | - Trevor Craig Koekemoer
- Department of Biochemistry and Microbiology, Nelson Mandela University, PO Box 77000, Port Elizabeth 6031, South Africa; (J.D.); (S.R.); (B.S.); (S.G.); (S.W.); (T.C.K.); (L.V.)
| | - Luanne Venables
- Department of Biochemistry and Microbiology, Nelson Mandela University, PO Box 77000, Port Elizabeth 6031, South Africa; (J.D.); (S.R.); (B.S.); (S.G.); (S.W.); (T.C.K.); (L.V.)
| |
Collapse
|
3
|
Wang X, Yang XL, Liu KC, Sheng WL, Xia Q, Wang RC, Chen XQ, Zhang Y. Effects of streptozotocin on pancreatic islet β-cell apoptosis and glucose metabolism in zebrafish larvae. FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:1025-1038. [PMID: 31993854 DOI: 10.1007/s10695-020-00769-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
Type 1 diabetes is characterized by an increase in blood glucose levels resulting from damage to β cells in pancreatic islets and the consequent absolute insufficiency of insulin. Animal models of type 1 diabetes were usually established using drugs toxic to β cells, such as streptozotocin (STZ). To assess the application of zebrafish larvae in diabetes research, we explore the effects of STZ on pancreatic islets and glucose metabolism in zebrafish larvae. STZ was microinjected into the pericardial cavity of zebrafish larvae on alternate days for three times. At 2 days after the whole series of STZ injection (12 dpf), free-glucose level in larvae tissue shows a significant increase, and the fluorescence signal in immunohistochemistry, which indicates the insulin expression, was significantly weaker compared with the solution-injected control. Obvious apoptosis signals were also observed in the location of pancreatic islet, and insulin content decreased to be undetectable in STZ-injected larvae. Gene expression level of ins decreased to half of the solution injection control and that of casp3a was upregulated by 2.20-fold. Expression level of glut2 and gck decreased to 0.312-fold and 0.093-fold, respectively. pck1 was upregulated by 2.533-fold in STZ-injected larvae. By tracking detection, we found the free-glucose level in STZ-injected larvae gradually approached the level of the solution injection control and the insulin content recovered at 6 days post-STZ injection (16 dpf). Consistent with the change of the glucose level, the regeneration rate of the caudal fin in the STZ-injected group decreased initially, but recovered and accelerated gradually finally at 8 days post-amputation (20 dpf). These results indicate the generation of a transient hyperglycemia model due to β-cell apoptosis caused by STZ, which is abated by the vigorous regeneration ability of β cells in zebrafish larvae.
Collapse
Affiliation(s)
- Xue Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China
| | - Xue-Liang Yang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China
| | - Ke-Chun Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China
| | - Wen-Long Sheng
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China
| | - Qing Xia
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China
| | - Rong-Chun Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China
| | - Xi-Qiang Chen
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China
| | - Yun Zhang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China.
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China.
| |
Collapse
|
4
|
Garcia Campoy AH, Perez Gutierrez RM, Manriquez-Alvirde G, Muñiz Ramirez A. Protection of silver nanoparticles using Eysenhardtia polystachya in peroxide-induced pancreatic β-Cell damage and their antidiabetic properties in zebrafish. Int J Nanomedicine 2018; 13:2601-2612. [PMID: 29750032 PMCID: PMC5936013 DOI: 10.2147/ijn.s163714] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background The aim was to explore the efficacy of extract of Eysenhardtia polystachya-loaded silver nanoparticles (EP/AgNPs) on pancreatic β cells, INS-1 cells, and zebrafish as a valuable model for the study of diabetes mellitus. Materials and methods EP/AgNPs were synthesized using methanol/water bark extract of E. polystachya and characterized using various physicochemical techniques. Results Immersion of adult zebrafish in 111 mM glucose solution resulted in a sustained hyperglycemic, hyperlipidemic state, and serum insulin levels decreased. The synthesized EP/AgNPs showed an absorption peak at 413 nm on ultraviolet–visible spectroscopy, revealing the surface plasmon resonance of the nanoparticles. Transmission electron microscopy indicated that most of the particles were spherical, with a diameter of 10–12 nm, a polydispersity index of 0.197, and a zeta potential of −32.25 mV, suggesting high stability of the nanoparticles. EP/AgNPs promote pancreatic β-cell survival, insulin secretion, enhanced hyperglycemia, and hyperlipidemia in glucose-induced diabetic zebrafish. EP/AgNPs also showed protection of the pancreatic β-cell line INS-1 against hydrogen peroxide-induced oxidative injury. Conclusion The results indicate that EP/AgNPs have good antidiabetic activity and therefore could be used to prevent the development of diabetes.
Collapse
Affiliation(s)
- Abraham Heriberto Garcia Campoy
- Laboratorio de Investigación de Productos Naturales, Escuela Superior de Ingenieria Quimica e Industrias extractivas IPN, Unidad Profesional Adolfo Lopez Mateos, Mexico City, Mexico
| | - Rosa Martha Perez Gutierrez
- Laboratorio de Investigación de Productos Naturales, Escuela Superior de Ingenieria Quimica e Industrias extractivas IPN, Unidad Profesional Adolfo Lopez Mateos, Mexico City, Mexico
| | | | | |
Collapse
|
5
|
Ultrastructural Mapping of the Zebrafish Gastrointestinal System as a Basis for Experimental Drug Studies. BIOMED RESEARCH INTERNATIONAL 2016; 2016:8758460. [PMID: 27340669 PMCID: PMC4909927 DOI: 10.1155/2016/8758460] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 05/04/2016] [Indexed: 12/15/2022]
Abstract
Research in the field of gastroenterology is increasingly focused on the use of alternative nonrodent model organisms to provide new experimental tools to study chronic diseases. The zebrafish is a particularly valuable experimental platform to explore organ and cell structure-function relationships under relevant biological and pathobiological settings. This is due to its optical transparency and its close-to-human genetic makeup. To-date, the structure-function properties of the GIS of the zebrafish are relatively unexplored and limited to histology and fluorescent microscopy. Occasionally those studies include EM of a given subcellular process but lack the required full histological picture. In this work, we employed a novel combined biomolecular imaging approach in order to cross-correlate 3D ultrastructure over different length scales (optical-, X-ray micro-CT, and high-resolution EM). Our correlated imaging studies and subsequent data modelling provide to our knowledge the first detailed 3D picture of the zebrafish larvae GIS. Our results provide unequivocally a limit of confidence for studying various digestive disorders and drug delivery pathways in the zebrafish.
Collapse
|
6
|
Falcinelli S, Rodiles A, Unniappan S, Picchietti S, Gioacchini G, Merrifield DL, Carnevali O. Probiotic treatment reduces appetite and glucose level in the zebrafish model. Sci Rep 2016; 6:18061. [PMID: 26727958 PMCID: PMC4700460 DOI: 10.1038/srep18061] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 11/03/2015] [Indexed: 02/08/2023] Open
Abstract
The gut microbiota regulates metabolic pathways that modulate the physiological state of hunger or satiety. Nutrients in the gut stimulate the release of several appetite modulators acting at central and peripheral levels to mediate appetite and glucose metabolism. After an eight-day exposure of zebrafish larvae to probiotic Lactobacillus rhamnosus, high-throughput sequence analysis evidenced the ability of the probiotic to modulate the microbial composition of the gastrointestinal tract. These changes were associated with a down-regulation and up-regulation of larval orexigenic and anorexigenic genes, respectively, an up-regulation of genes related to glucose level reduction and concomitantly reduced appetite and body glucose level. BODIPY-FL-pentanoic-acid staining revealed higher short chain fatty acids levels in the intestine of treated larvae. These results underline the capability of the probiotic to modulate the gut microbiota community and provides insight into how the probiotic interacts to regulate a novel gene network involved in glucose metabolism and appetite control, suggesting a possible role for L. rhamnosus in the treatment of impaired glucose tolerance and food intake disorders by gut microbiota manipulation.
Collapse
Affiliation(s)
- Silvia Falcinelli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Ana Rodiles
- Aquatic Animal Nutrition and Health Research Group, School of Biological Sciences, Plymouth University, PL4 8AA, UK
| | - Suraj Unniappan
- Laboratory of Integrative Neuroendocrinology, Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan S7N 5B4, Canada
| | - Simona Picchietti
- Department for Innovation in Biological, Agro-food and Forest Systems (DIBAF), University of Tuscia, Viterbo, Italy
| | - Giorgia Gioacchini
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Daniel Lee Merrifield
- Aquatic Animal Nutrition and Health Research Group, School of Biological Sciences, Plymouth University, PL4 8AA, UK
| | - Oliana Carnevali
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| |
Collapse
|
7
|
Sarras MP, Leontovich AA, Intine RV. Use of zebrafish as a model to investigate the role of epigenetics in propagating the secondary complications observed in diabetes mellitus. Comp Biochem Physiol C Toxicol Pharmacol 2015; 178:3-7. [PMID: 26165618 PMCID: PMC4662881 DOI: 10.1016/j.cbpc.2015.07.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 06/30/2015] [Accepted: 07/01/2015] [Indexed: 12/27/2022]
Abstract
Diabetes mellitus (DM) is classified as a disease of metabolic dysregulation predicted to affect over 400 million individuals world-wide by 2030. The debilitating aspects of this disease are the long term complications involving microvascular and macrovascular pathologies. These long term complications are related to the clinical phenomenon of metabolic memory (MM) that is defined as the persistence of diabetic complications even after glycemic control has been pharmacologically achieved. The persistent nature of MM has invoked involvement of epigenetic processes. Current research with the DM/MM zebrafish model as described in this review as well as human and mammalian studies has established that changes in DNA methylation patterns appear to contribute to tissue dysfunctions associated with DM. This review will describe studies on an adult zebrafish model of type I diabetes mellitus that allows analysis of both the hyperglycemic (HG or DM) phase and MM phase of the disease. The review will discuss the model in regards to: 1) its hyperglycemic phase, 2) its MM phase, 3) biochemical õpathways underlying changes in DNA methylation patterns observed in the model, 4) loci specific changes in DNA methylation patterns, and 5) strengths of the adult zebrafish model as compared to other MM animal models.
Collapse
Affiliation(s)
- Michael P Sarras
- Department of Cell Biology and Anatomy, Chicago Medical School at Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA.
| | - Alexey A Leontovich
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA.
| | - Robert V Intine
- Department of Biomedical Sciences, Dr. William M. School College of Podiatric Medicine at Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA.
| |
Collapse
|
8
|
Wang Z, Mao Y, Cui T, Tang D, Wang XL. Impact of a combined high cholesterol diet and high glucose environment on vasculature. PLoS One 2013; 8:e81485. [PMID: 24349075 PMCID: PMC3857185 DOI: 10.1371/journal.pone.0081485] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 10/21/2013] [Indexed: 11/26/2022] Open
Abstract
AIMS Vascular complications are the leading cause of mortality and morbidity in patients with diabetes. However, proper animal models of diabetic vasculopathy that recapitulate the accelerated progression of vascular lesions in human are unavailable. In the present study, we developed a zebrafish model of diabetic vascular complications and the methodology for quantifying vascular lesion formation real-time in the living diabetic zebrafish. METHODS AND RESULTS Wild type zebrafish (AB) and transgenic zebrafish lines of fli1:EGFP, lyz:EGFP, gata1:dsRed, double transgenic zebrafish of gata1:dsRed/fli1:EGFP were exposed to high cholesterol diet and 3% glucose (HCD-HG) for 10 days. The zebrafish model with HCD-HG treatment was characterized by significantly increased tissue levels of insulin, glucagon, glucose, total triglyceride and cholesterol. Confocal microscopic analysis further revealed that the diabetic larvae developed clearly thickened endothelial layers, distinct perivascular lipid depositions, substantial accumulations of inflammatory cells in the injured vasculature, and a decreased velocity of blood flow. Moreover, the vascular abnormalities were improved by the treatment of pioglitazone and metformin. CONCLUSION A combination of high cholesterol diet and high glucose exposure induces a rapid onset of vascular complications in zebrafish similar to the early atherosclerotic vascular injuries in mammalian diabetic models, suggesting that zebrafish may be used as a novel animal model for diabetic vasculopathy.
Collapse
Affiliation(s)
- Zemin Wang
- Shandong University Qilu Hospital Research Center for Cell Therapy, Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital of Shandong University, Jinan, P. R. China
| | - Yun Mao
- Shandong University Qilu Hospital Research Center for Cell Therapy, Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital of Shandong University, Jinan, P. R. China
| | - Taixing Cui
- Shandong University Qilu Hospital Research Center for Cell Therapy, Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital of Shandong University, Jinan, P. R. China
- Department of Cell Biology and Anatomy, South Carolina University, Columbus, South Carolina, United States of America
| | - Dongqi Tang
- Shandong University Qilu Hospital Research Center for Cell Therapy, Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital of Shandong University, Jinan, P. R. China
- Center for Stem Cell and Regenerative Medicine, The Second Hospital of Shandong University, Jinan, P.R. China
| | - Xing Li Wang
- Shandong University Qilu Hospital Research Center for Cell Therapy, Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital of Shandong University, Jinan, P. R. China
| |
Collapse
|
9
|
Li M, Maddison LA, Crees Z, Chen W. Targeted overexpression of CKI-insensitive cyclin-dependent kinase 4 increases functional β-cell number through enhanced self-replication in zebrafish. Zebrafish 2013; 10:170-6. [PMID: 23544990 DOI: 10.1089/zeb.2012.0816] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
β-Cells of the islet of Langerhans produce insulin to maintain glucose homeostasis. Self-replication of β-cells is the predominant mode of postnatal β-cell production in mammals, with about 20% of rodent β cells dividing in a 24-hour period. However, replicating β-cells are rare in adults. Induction of self-replication of existing β-cells is a potential treatment for diabetes. In zebrafish larvae, β-cells rarely self-replicate, even under conditions that favor β-cell genesis such overnutrition and β-cell ablation. It is not clear why larval β-cells are refractory to replication. In this study, we tested the hypothesis that insufficient activity of cyclin-dependent kinase 4 may be responsible for the low replication rate by ectopically expressing in β-cells a mutant CDK4 (CDK4(R24C)) that is insensitive to inhibition by cyclin-dependent kinase inhibitors. Our data show that expression of CDK4(R24C) in β-cells enhanced β-cell replication. CDK4(R24C) also dampened compensatory β-cell neogenesis in larvae and improved glucose tolerance in adult zebrafish. Our data indicate that CDK4 inhibition contributes to the limited β-cell replication in larval zebrafish. To our knowledge, this is the first example of genetically induced β-cell replication in zebrafish.
Collapse
Affiliation(s)
- Mingyu Li
- Department of Molecular Physiology and Biophysics, Vanderbilt University , Nashville, TN 37232, USA
| | | | | | | |
Collapse
|
10
|
Tiso N, Moro E, Argenton F. Zebrafish pancreas development. Mol Cell Endocrinol 2009; 312:24-30. [PMID: 19477220 DOI: 10.1016/j.mce.2009.04.018] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Revised: 04/28/2009] [Accepted: 04/30/2009] [Indexed: 10/20/2022]
Abstract
An accurate understanding of the molecular events governing pancreas development can have an impact on clinical medicine related to diabetes, obesity and pancreatic cancer, diseases with a high impact in public health. Until 1996, the main animal models in which pancreas formation and differentiation could be studied were mouse and, for some instances related to early development, chicken and Xenopus. Zebrafish has penetrated this field very rapidly offering a new model of investigation; by joining functional genomics, genetics and in vivo whole mount visualization, Danio rerio has allowed large scale and fine multidimensional analysis of gene functions during pancreas formation and differentiation.
Collapse
Affiliation(s)
- Natascia Tiso
- Dipartimento di Biologia, Universita' degli Studi di Padova, Via Ugo Bassi 58b, I-35121 Padova, Italy
| | | | | |
Collapse
|
11
|
Parsons MJ, Pisharath H, Yusuff S, Moore JC, Siekmann AF, Lawson N, Leach SD. Notch-responsive cells initiate the secondary transition in larval zebrafish pancreas. Mech Dev 2009; 126:898-912. [PMID: 19595765 DOI: 10.1016/j.mod.2009.07.002] [Citation(s) in RCA: 273] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2009] [Revised: 06/23/2009] [Accepted: 07/02/2009] [Indexed: 11/28/2022]
Abstract
Zebrafish provide a highly versatile model in which to study vertebrate development. Many recent studies have elucidated early events in the organogenesis of the zebrafish pancreas; however, several aspects of early endocrine pancreas formation in the zebrafish are not homologous to the mammalian system. To better identify mechanisms of islet formation in the zebrafish, with true homology to those observed in mammals, we have temporally and spatially characterized zebrafish secondary islet formation. As is the case in the mouse, we show that Notch inhibition leads to precocious differentiation of endocrine tissues. Furthermore, we have used transgenic fish expressing fluorescent markers under the control of a Notch-responsive element to observe the precursors of these induced endocrine cells. These pancreatic Notch-responsive cells represent a novel population of putative progenitors that are associated with larval pancreatic ductal epithelium, suggesting functional homology between secondary islet formation in zebrafish and the secondary transition in mammals. We also show that Notch-responsive cells persist in the adult pancreas and possess the classical characteristics of centroacinar cells, a cell type believed to be a multipotent progenitor cell in adult mammalian pancreas.
Collapse
Affiliation(s)
- Michael J Parsons
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
| | | | | | | | | | | | | |
Collapse
|
12
|
Winata CL, Korzh S, Kondrychyn I, Zheng W, Korzh V, Gong Z. Development of zebrafish swimbladder: The requirement of Hedgehog signaling in specification and organization of the three tissue layers. Dev Biol 2009; 331:222-36. [DOI: 10.1016/j.ydbio.2009.04.035] [Citation(s) in RCA: 132] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2008] [Revised: 04/28/2009] [Accepted: 04/29/2009] [Indexed: 01/19/2023]
|
13
|
Li Z, Wen C, Peng J, Korzh V, Gong Z. Generation of living color transgenic zebrafish to trace somatostatin-expressing cells and endocrine pancreas organization. Differentiation 2009; 77:128-34. [DOI: 10.1016/j.diff.2008.09.014] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2008] [Revised: 08/10/2008] [Accepted: 08/11/2008] [Indexed: 11/30/2022]
|
14
|
Dokmanovic-Chouinard M, Chung WK, Chevre JC, Watson E, Yonan J, Wiegand B, Bromberg Y, Wakae N, Wright CV, Overton J, Ghosh S, Sathe GM, Ammala CE, Brown KK, Ito R, LeDuc C, Solomon K, Fischer SG, Leibel RL. Positional cloning of "Lisch-Like", a candidate modifier of susceptibility to type 2 diabetes in mice. PLoS Genet 2008; 4:e1000137. [PMID: 18654634 PMCID: PMC2464733 DOI: 10.1371/journal.pgen.1000137] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2007] [Accepted: 06/20/2008] [Indexed: 12/17/2022] Open
Abstract
In 404 Lepob/ob F2 progeny of a C57BL/6J (B6) x DBA/2J (DBA) intercross, we mapped a DBA-related quantitative trait locus (QTL) to distal Chr1 at 169.6 Mb, centered about D1Mit110, for diabetes-related phenotypes that included blood glucose, HbA1c, and pancreatic islet histology. The interval was refined to 1.8 Mb in a series of B6.DBA congenic/subcongenic lines also segregating for Lepob. The phenotypes of B6.DBA congenic mice include reduced β-cell replication rates accompanied by reduced β-cell mass, reduced insulin/glucose ratio in blood, reduced glucose tolerance, and persistent mild hypoinsulinemic hyperglycemia. Nucleotide sequence and expression analysis of 14 genes in this interval identified a predicted gene that we have designated “Lisch-like” (Ll) as the most likely candidate. The gene spans 62.7 kb on Chr1qH2.3, encoding a 10-exon, 646–amino acid polypeptide, homologous to Lsr on Chr7qB1 and to Ildr1 on Chr16qB3. The largest isoform of Ll is predicted to be a transmembrane molecule with an immunoglobulin-like extracellular domain and a serine/threonine-rich intracellular domain that contains a 14-3-3 binding domain. Morpholino knockdown of the zebrafish paralog of Ll resulted in a generalized delay in endodermal development in the gut region and dispersion of insulin-positive cells. Mice segregating for an ENU-induced null allele of Ll have phenotypes comparable to the B.D congenic lines. The human ortholog, C1orf32, is in the middle of a 30-Mb region of Chr1q23-25 that has been repeatedly associated with type 2 diabetes. Type 2 diabetes (T2D) accounts for over 90% of instances of diabetes and is a leading cause of medical morbidity and mortality. Twin studies indicate a strong polygenic contribution to susceptibility within the context of obesity. Although approximately ten genes making important contributions to individual risk have been identified, it is clear that others remain to be identified. In this study, we intercrossed obese, diabetes-resistant and diabetes-prone mouse strains to implicate a genetic interval on mouse Chr1 associated with reduced β-cell numbers and elevated blood glucose. We narrowed the region using molecular genetics and computational approaches to identify a novel gene we designated “Lisch-like” (Ll). The orthologous human genetic interval has been repeatedly implicated in T2D. Mice with an induced mutation that reduces Ll expression are impaired in both β-cell development and glucose metabolism, and reduced expression of the homologous gene in zebrafish disrupts islet development. Ll is expressed in organs implicated in the pathophysiology of T2D (hypothalamus, islets, liver, and skeletal muscle) and is predicted to encode a transmembrane protein that could mediate cholesterol transport and/or convey signals related to cell division. Either mechanism could mediate effects on β-cell mass that would predispose to T2D.
Collapse
MESH Headings
- Amino Acid Sequence
- Animals
- Base Sequence
- Blood Glucose/genetics
- Chromosomes, Mammalian
- Cloning, Molecular
- Crosses, Genetic
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Type 2/genetics
- Genetic Predisposition to Disease
- Glucose Tolerance Test/methods
- Haplotypes
- Homozygote
- Insulin/blood
- Male
- Mice
- Mice, Congenic
- Mice, Inbred C57BL
- Mice, Inbred DBA
- Mice, Obese
- Molecular Sequence Data
- Mutation
- Protein Isoforms/chemistry
- Protein Isoforms/genetics
- Quantitative Trait Loci
- Receptors, Cell Surface/genetics
Collapse
Affiliation(s)
| | - Wendy K. Chung
- Naomi Berrie Diabetes Center, Columbia University, New York, New York, United States of America
| | - Jean-Claude Chevre
- Naomi Berrie Diabetes Center, Columbia University, New York, New York, United States of America
| | - Elizabeth Watson
- Naomi Berrie Diabetes Center, Columbia University, New York, New York, United States of America
| | - Jason Yonan
- Naomi Berrie Diabetes Center, Columbia University, New York, New York, United States of America
| | - Beebe Wiegand
- Naomi Berrie Diabetes Center, Columbia University, New York, New York, United States of America
| | - Yana Bromberg
- Naomi Berrie Diabetes Center, Columbia University, New York, New York, United States of America
| | - Nao Wakae
- Naomi Berrie Diabetes Center, Columbia University, New York, New York, United States of America
| | - Chris V. Wright
- Vanderbilt University, Nashville, Tennessee, United States of America
| | - John Overton
- Naomi Berrie Diabetes Center, Columbia University, New York, New York, United States of America
| | - Sujoy Ghosh
- Clinical Pharmacology and Discovery Medicine, GlaxoSmithKline, Research Triangle Park, North Carolina, United States of America
| | - Ganesh M. Sathe
- Discovery Technology Group, GlaxoSmithKline Pharmaceuticals, Collegeville, Pennsylvania, United States of America
| | - Carina E. Ammala
- Center of Excellence for Drug Discovery, GlaxoSmithKline, Research Triangle Park, North Carolina, United States of America
| | - Kathleen K. Brown
- Center of Excellence for Drug Discovery, GlaxoSmithKline, Research Triangle Park, North Carolina, United States of America
| | - Rokuro Ito
- Naomi Berrie Diabetes Center, Columbia University, New York, New York, United States of America
| | - Charles LeDuc
- Naomi Berrie Diabetes Center, Columbia University, New York, New York, United States of America
| | - Keely Solomon
- Vanderbilt University, Nashville, Tennessee, United States of America
| | - Stuart G. Fischer
- Naomi Berrie Diabetes Center, Columbia University, New York, New York, United States of America
| | - Rudolph L. Leibel
- Naomi Berrie Diabetes Center, Columbia University, New York, New York, United States of America
- * E-mail:
| |
Collapse
|
15
|
Robison BD, Drew RE, Murdoch GK, Powell M, Rodnick KJ, Settles M, Stone D, Churchill E, Hill RA, Papasani MR, Lewis SS, Hardy RW. Sexual dimorphism in hepatic gene expression and the response to dietary carbohydrate manipulation in the zebrafish (Danio rerio). COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2008; 3:141-54. [PMID: 20483215 DOI: 10.1016/j.cbd.2008.01.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2007] [Revised: 01/28/2008] [Accepted: 01/28/2008] [Indexed: 12/20/2022]
Abstract
In this study, we tested for the presence of sexual dimorphism in the hepatic transcriptome of the adult zebrafish and examined the effect of long term manipulation of dietary carbohydrate on gene expression in both sexes. Zebrafish were fed diets comprised of 0%, 15%, 25%, or 35% carbohydrate from the larval stage through sexual maturity, then sampled for hepatic tissue, growth, proximate body composition, and retention efficiencies. Using Affymetrix microarrays and qRT-PCR, we observed substantial sexual dimorphism in the hepatic transcriptome. Males up-regulated genes associated with oxidative metabolism, carbohydrate metabolism, energy production, and amelioration of oxidative stress, while females had higher expression levels of genes associated with translation. Restriction of dietary carbohydrate (0% diet) significantly affected hepatic gene expression, growth performance, retention efficiencies of protein and energy, and percentages of moisture, lipid, and ash. The response of some genes to dietary manipulation varied by sex; with increased dietary carbohydrate, males up-regulated genes associated with oxidative metabolism (e.g. hadhbeta) while females up-regulated genes associated with glucose phosphorylation (e.g. glucokinase). Our data support the use of the zebrafish model for the study of fish nutritional genomics, but highlight the importance of accounting for sexual dimorphism in these studies.
Collapse
Affiliation(s)
- Barrie D Robison
- Department of Biological Sciences and Center for Reproductive Biology, University of Idaho, Moscow, ID, 83844-3051, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Chen S, Huang J, Yuan G. siRNA specific to Pdx-1 disturbed the formation of the islet in early zebrafish embryos. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY. MEDICAL SCIENCES = HUA ZHONG KE JI DA XUE XUE BAO. YI XUE YING DE WEN BAN = HUAZHONG KEJI DAXUE XUEBAO. YIXUE YINGDEWEN BAN 2008; 27:639-42. [PMID: 18231730 DOI: 10.1007/s11596-007-0604-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2007] [Indexed: 11/28/2022]
Abstract
Pdx-1, an important transcription factor highlighting in the early pancreatic development, islet functions and pancreatic disorders, needs to be more investigated in zebrafish, and siRNA is still seldom applied in zebrafish embryo-related research. Our aim was to explore the role of pdx-1 in pancreatic development of zebrafish embryos by using siRNA approach. Microinjection, reverse transcriptase-PCR (RT-PCR), in situ hybridization and immunofluorescent staining were used in this research, and the morphology of the islet in normal zebrafish embryos, and in those treated with the siRNA specific to pdx-1 (siPDX-1) or siGFP was observed and compared. The expression of pdx-1 was detected in the stages of 1-cell, 2-cell, 4-cell, 8-cell, 16-cell, 16-hour by RT-PCT. The in situ hybridization and immunofluorescent staining results showed that siPDX-1 disturbed the formation of the islet in zebrafish embryos. Pdx-1 played multiple roles in maintaining the phenotype of the islet during embryogenesis in zebrafish.
Collapse
Affiliation(s)
- Shen Chen
- Department of Histology & Embryology, School of Preclinical Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | | | | |
Collapse
|
17
|
Abstract
OBJECTIVES To investigate the anatomic structure of the pancreas and the distribution of the islets in adult zebrafish. METHODS In situ immunofluorescent staining, electron microscopy, and serial paraffin-embedded sectioning with hematoxylin/eosin staining were applied. RESULTS The pancreas along the intestine included 4 relatively independent and concentrated lobes, in which 4 kinds of islets-principal islets, Brockmann bodies, diffusely existing islets, and single beta-cell-were observed. Some islets contained both alpha and beta cells, whereas some contained only beta cells. The islet number in each adult zebrafish averaged 84.53 +/- 43.77; and the lower quartile, median, and upper quartile were 55.25, 70.50, and 112.00, respectively (n = 40). The different islets were differently distributed in the 4 pancreatic lobes with statistical significance (P < 0.05). Meanwhile, 3 kinds of secretory granules were found in the cytoplasm of different islet cells. CONCLUSIONS According to the distinct distribution, concentration of the pancreas, and different contents of the islets within the pancreas, 4 lobes of the pancreas along the intestine-the gallbladder-spleen lobe, the middle lobe, the left lobe, and the ventral lobe-were identified in adult zebrafish.
Collapse
Affiliation(s)
- Shen Chen
- Department of Histology and Embryology, School of Preclinical Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | | | | | | |
Collapse
|
18
|
Zecchin E, Filippi A, Biemar F, Tiso N, Pauls S, Ellertsdottir E, Gnügge L, Bortolussi M, Driever W, Argenton F. Distinct delta and jagged genes control sequential segregation of pancreatic cell types from precursor pools in zebrafish. Dev Biol 2006; 301:192-204. [PMID: 17059815 DOI: 10.1016/j.ydbio.2006.09.041] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2006] [Revised: 08/28/2006] [Accepted: 09/20/2006] [Indexed: 12/17/2022]
Abstract
The different cell types of the vertebrate pancreas arise asynchronously during organogenesis. Beta-cells producing insulin, alpha-cells producing glucagon, and exocrine cells secreting digestive enzymes differentiate sequentially from a common primordium. Notch signaling has been shown to be a major mechanism controlling these cell-fate choices. So far, the pleiotropy of Delta and Jagged/Serrate genes has hindered the evaluation of the roles of specific Notch ligands, as the phenotypes of knock-out mice are lethal before complete pancreas differentiation. Analyses of gene expression and experimental manipulations of zebrafish embryos allowed us to determine individual contributions of Notch ligands to pancreas development. We have found that temporally distinct phases of both endocrine and exocrine cell type specification are controlled by different delta and jagged genes. Specifically, deltaA knock-down embryos lack alpha cells, similarly to mib (Delta ubiquitin ligase) mutants and embryos treated with DAPT, a gamma secretase inhibitor able to block Notch signaling. Conversely, jagged1b morphants develop an excess of alpha-cells. Moreover, the pancreas of jagged2 knock-down embryos has a decreased ratio of exocrine-to-endocrine compartments. Finally, overexpression of Notch1a-intracellular-domain in the whole pancreas primordium or specifically in beta-cells helped us to refine a model of pancreas differentiation in which cells exit the precursor state at defined stages to form the pancreatic cell lineages, and, by a feedback mediated by different Notch ligands, limit the number of other cells that can leave the precursor state.
Collapse
Affiliation(s)
- E Zecchin
- Dipartimento di Biologia, Universita' di Padova, Via U Bassi 58/B, 35131 Padova, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|