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Cui J, Yang Z, Ma R, He W, Tao H, Li Y, Zhao Y. Placenta-targeted Treatment Strategies for Preeclampsia and Fetal Growth Restriction: An Opportunity and Major Challenge. Stem Cell Rev Rep 2024:10.1007/s12015-024-10739-x. [PMID: 38814409 DOI: 10.1007/s12015-024-10739-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2024] [Indexed: 05/31/2024]
Abstract
The placenta plays a crucial role in maintaining normal pregnancy. The failure of spiral artery remodeling (SAR) is a key factor leading to placental ischemia and poor perfusion which is strongly associated with obstetric diseases, including preeclampsia (PE) and fetal growth restriction (FGR). Existing interventions for PE and FGR are limited and termination of pregnancy is inevitable when the maternal or fetus condition deteriorates. Considering the safety of the mother and fetus, treatments that may penetrate the placental barrier and harm the fetus are not accepted. Developing targeted treatment strategies for these conditions is urgent and necessary. With the proven efficacy of targeted therapy in treating conditions such as endometrial cancer and trophoblastic tumors, research on placental dysfunction continues to deepen. This article reviews the studies on placenta-targeted treatment and drug delivery strategies, summarizes the characteristics proposes corresponding improvement measures in targeted treatment, provides solutions for existing problems, and makes suggestions for future studies.
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Affiliation(s)
- Jianjian Cui
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Zejun Yang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Ruilin Ma
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Wencong He
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Hui Tao
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Ya'nan Li
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Yin Zhao
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China.
- Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen, 518000, China.
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Schindler M, Endlich N. Zebrafish as a model for podocyte research. Am J Physiol Renal Physiol 2024; 326:F369-F381. [PMID: 38205541 DOI: 10.1152/ajprenal.00335.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/25/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024] Open
Abstract
Podocytes, specialized postmitotic cells, are central players in various kidney-related diseases. Zebrafish have become a valuable model system for studying podocyte biology because they are genetically easy to manipulate, transparent, and their glomerular structure is similar to that of mammals. This review provides an overview of the knowledge of podocyte biology in zebrafish larvae, with particular focus on their essential contribution to understanding the mechanisms that underlie kidney diseases as well as supporting drug development. In addition, special attention is given to advances in live-imaging techniques allowing the observation of dynamic processes, including podocyte motility, podocyte process behavior, and glomerulus maturation. The review further addresses the functional aspects of podocytes in zebrafish larvae. This includes topics such as glomerular filtration, ultrastructural analyses, and evaluation of podocyte response to nephrotoxic insults. Studies presented in this context have provided important insights into the maintenance and resistance of the glomerular filtration barrier in zebrafish larvae and explored the potential transferability of these findings to mammals such as mice, rats, and most importantly, humans. The recent ability to identify potential therapeutic targets represents a promising new way to identify drugs that could effectively treat podocyte-associated glomerulopathies in humans. In summary, this review gives an overview about the importance of zebrafish as a model for podocyte-related disease and targeted drug development. It also highlights the key role of advanced imaging techniques in transparent zebrafish larvae, improving our understanding of glomerular diseases and the significant potential for translation of these findings to humans.
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Affiliation(s)
- Maximilian Schindler
- Department of Anatomy and Cell Biology, University Medicine Greifswald, Greifswald, Germany
| | - Nicole Endlich
- Department of Anatomy and Cell Biology, University Medicine Greifswald, Greifswald, Germany
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Rederer A, Rose V, Krüger R, Schmittutz L, Swierzy I, Fischer L, Thievessen I, Bauer J, Friedrich O, Schiffer M, Müller-Deile J. Partner, Neighbor, Housekeeper and Dimension: 3D versus 2D Glomerular Co-Cultures Reveal Drawbacks of Currently Used Cell Culture Models. Int J Mol Sci 2023; 24:10384. [PMID: 37373531 DOI: 10.3390/ijms241210384] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/14/2023] [Accepted: 06/17/2023] [Indexed: 06/29/2023] Open
Abstract
Signaling-pathway analyses and the investigation of gene responses to different stimuli are usually performed in 2D monocultures. However, within the glomerulus, cells grow in 3D and are involved in direct and paracrine interactions with different glomerular cell types. Thus, the results from 2D monoculture experiments must be taken with caution. We cultured glomerular endothelial cells, podocytes and mesangial cells in 2D/3D monocultures and 2D/3D co-cultures and analyzed cell survival, self-assembly, gene expression, cell-cell interaction, and gene pathways using live/dead assay, time-lapse analysis, bulk-RNA sequencing, qPCR, and immunofluorescence staining. Without any need for scaffolds, 3D glomerular co-cultures self-organized into spheroids. Podocyte- and glomerular endothelial cell-specific markers and the extracellular matrix were increased in 3D co-cultures compared to 2D co-cultures. Housekeeping genes must be chosen wisely, as many genes used for the normalization of gene expression were themselves affected in 3D culture conditions. The transport of podocyte-derived VEGFA to glomerular endothelial cells confirmed intercellular crosstalk in the 3D co-culture models. The enhanced expression of genes important for glomerular function in 3D, compared to 2D, questions the reliability of currently used 2D monocultures. Hence, glomerular 3D co-cultures might be more suitable in the study of intercellular communication, disease modelling and drug screening ex vivo.
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Affiliation(s)
- Anna Rederer
- Department of Nephrology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Victoria Rose
- Department of Nephrology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - René Krüger
- Department of Nephrology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Linda Schmittutz
- Department of Nephrology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Izabela Swierzy
- Department of Nephrology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Lena Fischer
- Center for Medicine, Physics and Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Ingo Thievessen
- Center for Medicine, Physics and Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Julian Bauer
- Institute of Medical Biotechnology, Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Oliver Friedrich
- Institute of Medical Biotechnology, Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Mario Schiffer
- Department of Nephrology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Janina Müller-Deile
- Department of Nephrology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
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Eroglu SA, Unsal AIA, Abdullayev OK, Guler D, Turkmen MK, Özkan SB, Demirci B, Omurlu IK. The role of hepatic and renal functions in the development of retinopathy of prematurity: Is proteinuria a new risk factor? Int Ophthalmol 2023; 43:483-490. [PMID: 35930082 DOI: 10.1007/s10792-022-02445-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 07/17/2022] [Indexed: 10/16/2022]
Abstract
PURPOSE To investigate the association of hepatic and renal parameters with the development of retinopathy of prematurity (ROP) in premature infants with a gestational age ≤ 32 weeks. METHODS Medical records of 240 preterm infants were reviewed retrospectively, 85 of them were grouped as type 1, type 2 ROP, and control group. The 4th week hepatic and renal function test results of the groups, on the day of their first ROP examinations, were compared for the risk of development of ROP and the development of type 1 ROP. RESULTS In this study, 12, 35, and 38 infants were enrolled in the type 1, type 2 ROP, and control group, respectively. The average gestational age and birth weight were higher; however, the duration of oxygen treatment was lower in the control group (p < 0.001). The blood glucose level was significantly higher in the type 1 ROP group than in the other groups (p = 0.023). The mean of total serum bilirubin of the type 1 ROP group was significantly lower than those of the type 2 ROP and control group (p = 0.032). Proteinuria was present in 85.7% of preterms with treatment-requiring ROP and proteinuria increased the risk of ROP by 3.9 times (OR with 95% CI 3.9 (1.19-12.75), p = 0.042). CONCLUSION We found significantly higher blood glucose and lower total bilirubin level in the type 1 ROP group. Moreover, our findings suggest that proteinuria may not be only a comorbidity factor but also related to a higher frequency of ROP and type 1 ROP in preterm infants.
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Affiliation(s)
- Sayime Aydin Eroglu
- Department of Ophthalmology, Bakircay University Cigli Training and Research Hospital, Izmir, Turkey.
| | - Ayse Ipek Akyuz Unsal
- Department of Ophthalmology, Faculty of Medicine, Aydin Adnan Menderes University, Aydin, Turkey
| | | | - Duygu Guler
- Department of Ophthalmology, Faculty of Medicine, Aydin Adnan Menderes University, Aydin, Turkey
| | - Munevver Kaynak Turkmen
- Department of Neonatology, Faculty of Medicine, Aydin Adnan Menderes University, Aydin, Turkey
| | | | - Buket Demirci
- Department of Medical Pharmacology, Faculty of Medicine, Aydin Adnan Menderes University, Aydin, Turkey
| | - Imran Kurt Omurlu
- Department of Biostatistics, Faculty of Medicine, Aydin Adnan Menderes University, Aydin, Turkey
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Wanting H, Jian Z, Chaoxin X, Cheng Y, Chengjian Z, Lin Z, Dan C. Using a zebrafish xenograft tumor model to compare the efficacy and safety of VEGFR-TKIs. J Cancer Res Clin Oncol 2023:10.1007/s00432-022-04560-7. [PMID: 36609710 DOI: 10.1007/s00432-022-04560-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 12/24/2022] [Indexed: 01/09/2023]
Abstract
PURPOSE We constructed a zebrafish xenograft tumor model to compare and quantify the antiangiogenic efficacy and safety of nine vascular endothelial growth factor receptor-tyrosine kinase inhibitors (VEGFR-TKIs), axitinib, lenvatinib, pazopanib, apatinib, cabozantinib, sunitinib, semaxanib, sorafenib, and regorafenib, in parallel. METHODS CT26 and GL261 tumor cells were implanted into the perivitelline space of Tg (flk1: eGFP) zebrafish to construct a xenograft tumor model. VEGFR-TKIs' antiangiogenic efficacy was quantified using AngioTool software, and the median effective dose (ED50) was calculated. The toxicity was evaluated by calculating the median lethal dose (LD50) and gross morphological changes. Cardiac toxicity was further assessed by heart rate, heart rhythm, the distance between the sinus venosus (SV) and bulbus arteriosus (BA), and pericardial edema. RESULTS Using the zebrafish xenograft tumor model, we found that all nine VEGFR-TKIs exhibited antiangiogenic abilities, but the effectiveness of semaxanib was worse than that of other VEGFR-TKIs. Meanwhile, the zebrafish toxicity assay showed that all tested VEGFR-TKIs were associated with cardiac-related toxicity, especially apatinib and axitinib, which caused serious pericardial edema in zebrafish at relatively low concentrations. A narrow therapeutic window was found for most VEGFR-TKIs, and the simultaneous occurrence of toxic effects of semaxanib was recognized. CONCLUSION Our findings showed the potential of using a zebrafish xenograft tumor model to accelerate VEGFR-TKI screening and further the development of more efficient and less toxic VEGFR-TKIs.
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Affiliation(s)
- Hou Wanting
- Department of Abdominal Oncology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Zhong Jian
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan Province, People's Republic of China
| | - Xiao Chaoxin
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan Province, People's Republic of China
| | - Yi Cheng
- Department of Abdominal Oncology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Zhao Chengjian
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan Province, People's Republic of China
| | - Zhou Lin
- Department of Thoracic Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, People's Republic of China.
| | - Cao Dan
- Department of Abdominal Oncology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, People's Republic of China.
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Sopel N, Müller-Deile J. Zebrafish Model to Study Podocyte Function Within the Glomerular Filtration Barrier. Methods Mol Biol 2023; 2664:145-157. [PMID: 37423988 DOI: 10.1007/978-1-0716-3179-9_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
The zebrafish model has been used in many different fields of research because of its high homology to the human genome, its easy genetic manipulation, its high fecundity, and its rapid development. For glomerular diseases, zebrafish larvae have proven to be a versatile tool to study the contribution of different genes, because the zebrafish pronephros is very comparable to the human kidney in function and ultrastructure. Here we describe the principle and use of a simple screening assay based on the measurement of the fluorescence in the retinal vessel plexus of the Tg(l-fabp:DBP:eGFP) zebrafish line ("eye assay") to indirectly determine proteinuria as a hallmark of podocyte dysfunction. Furthermore, we illustrate how to analyze the obtained data and outline methods to attribute the findings to podocyte impairment.
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Affiliation(s)
- Nina Sopel
- Department of Medicine 4 - Nephrology and Hypertension, Universitätsklinikum Erlangen, Erlangen, Germany
- Friedrich-Alexander Universiät Erlangen-Nuremberg, Erlangen, Germany
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Sakshi, Ragini, Saini A, Verma C, Mani I. Epigenetics in renal diseases. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2023; 198:61-71. [DOI: 10.1016/bs.pmbts.2023.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Zebrafish: A Model to Study and Understand the Diabetic Nephropathy and Other Microvascular Complications of Type 2 Diabetes Mellitus. Vet Sci 2022; 9:vetsci9070312. [PMID: 35878329 PMCID: PMC9323928 DOI: 10.3390/vetsci9070312] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/14/2022] [Accepted: 06/16/2022] [Indexed: 12/02/2022] Open
Abstract
Simple Summary Diabetes is a chronic metabolic disease characterized by high blood glucose levels (hyperglycemia). Type 2 diabetes mellitus (T2DM) and its complications are a worldwide public health problem, affecting people from all developed and developing countries. Hyperglycemia can cause damage to the vascular system and dysfunction of organs, such as the kidneys, heart, retina of the eyes, and nerves. Diabetic nephropathy (DN) is one of the most severe micro-vascular complications, which can lead to ESRD (end-stage renal disease). Zebrafish are ideal for wide-scale analysis or screening, due to their small size, quick growth, transparent embryos, vast number of offspring, and gene similarity with humans, which combine to make zebrafish an ideal model for diabetes. The readily available tools for gene editing using morpholinos or CRISPR/Cas9, as well as chemical/drug therapy by microinjection or skin absorption, enable zebrafish diabetes mellitus models to be established in a number of ways. In this review, we emphasize the physiological and pathological processes relating to micro-vascular problems in zebrafish, as well as the many experimental zebrafish models used to research DN, and the DN-related outcomes and mechanisms observed in zebrafish. This study specifies the benefits and drawbacks and future perspective of using zebrafish as a disease model. Abstract Diabetes mellitus (DM) is a complicated metabolic illness that has had a worldwide impact and placed an unsustainable load on both developed and developing countries’ health care systems. According to the International Diabetes Federation, roughly 537 million individuals had diabetes in 2021, with type 2 diabetes mellitus accounting for the majority of cases (T2DM). T2DM is a chronic illness defined by insufficient insulin production from pancreatic islet cells. T2DM generates various micro and macrovascular problems, with diabetic nephropathy (DN) being one of the most serious microvascular consequences, and which can lead to end-stage renal disease. The zebrafish (Danio rerio) has set the way for its future as a disease model organism. As numerous essential developmental processes, such as glucose metabolism and reactive metabolite production pathways, have been identified in zebrafish that are comparable to those seen in humans, it is a good model for studying diabetes and its consequences. It also has many benefits over other vertebrate models, including the permeability of its embryos to small compounds, disease-driven therapeutic target selection, in vivo validation, and deconstruction of biological networks. The organism can also be utilized to investigate and understand the genetic abnormalities linked to the onset of diabetes problems. Zebrafish may be used to examine and visualize the growth, morphology, and function of organs under normal physiological and diabetic settings. The zebrafish has become one of the most useful models for studying DN, especially when combined with genetic alterations and/or mutant or transgenic fish lines. The significant advancements of CRISPR and next-generation sequencing technology for disease modelling in zebrafish, as well as developments in molecular and nano technologies, have advanced the understanding of the molecular mechanisms of several human diseases, including DN. In this review, we emphasize the physiological and pathological processes relating to microvascular problems in zebrafish, as well as the many experimental zebrafish models used to research DN, and the DN-related outcomes and mechanisms observed in zebrafish.
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The Zebrafish Model to Understand Epigenetics in Renal Diseases. Int J Mol Sci 2021; 22:ijms22179152. [PMID: 34502062 PMCID: PMC8431166 DOI: 10.3390/ijms22179152] [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: 07/13/2021] [Revised: 08/22/2021] [Accepted: 08/23/2021] [Indexed: 11/24/2022] Open
Abstract
Epigenetic modifications are able to alter gene expression and include DNA methylation, different histone variants, and post-transcriptional modifications (PTMs), such as acetylation or phosphorylation, and through short/long RNAs, respectively. In this review, we focus on current knowledge concerning epigenetic modifications in gene regulation. We describe different forms of epigenetic modifications and explain how epigenetic changes can be detected. The relevance of epigenetics in renal diseases is highlighted with multiple examples and the use of the zebrafish model to study glomerular diseases in general and epigenetics in renal diseases in particular is discussed. We end with an outlook on how to use epigenetic modifications as a therapeutic target for different diseases. Here, the zebrafish model can be employed as a high-throughput screening tool not only to discover epigenetic alterations contributing to disease, but also to test novel substances that change epigenetic signatures in vivo. Therefore, the zebrafish model harbors the opportunity to find novel pathogenic pathways allowing a pre-selection of potential targets and compounds to be tested for renal diseases.
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10
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Xu Q, Song Y, Lu L. Overexpression of let-7d explains down-regulated KDM3A and ENO2 in the pathogenesis of preeclampsia. J Cell Mol Med 2021; 25:8127-8139. [PMID: 34350711 PMCID: PMC8419194 DOI: 10.1111/jcmm.16299] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 12/23/2020] [Accepted: 01/09/2021] [Indexed: 12/13/2022] Open
Abstract
Pre‐eclampsia (PE) is the leading cause of maternal death; however, the causative molecular basis remains largely unknown. Recent studies have revealed the important role microRNAs (miRNAs) play in PE. We aimed to explore the effects of let‐7d on trophoblast proliferation, migration, invasion and apoptosis in PE and its underlying mechanism. Placental tissues were collected from PE patients and healthy pregnant women, and it was found that let‐7d expression was increased, while KDM3A and ENO2 expression was decreased in PE tissues and cells. Bioinformatics analysis indicated the interaction among let‐7d, KDM3A and ENO2, confirmed by dual luciferase reporter gene assay; ChIP experiment identified methylated modification to ENO2 by KDM3A. With gain‐ and loss‐function method, silencing of let‐7d increased KDM3A expression and enhanced the binding between KDM3A and ENO2. Furthermore, overexpression of let‐7d suppressed cell proliferation, migration and invasion of trophoblasts, and induced apoptosis of trophoblasts, while these capacities were restored upon additional treatment of overexpressed ENO2. PE rat models were established to explore the effects of let‐7d and ENO2 on PE in vivo. The results established that the silencing of let‐7d alleviated the tissue injury and PE‐related symptoms when reducing urine protein, TUNEL‐positive cells and increasing ENO2, and KDM3A expression in rats. Cumulatively, let‐7d suppressed cell progression of trophoblasts, and induced apoptosis through the down‐regulation of KDM3A to promote ENO2 methylation, thereby promoting progression of PE. Such an epigenetic network of let‐7d, KDM3A and ENO2 in the pathogenesis of PE might provide novel insight into targeted therapy against this disorder.
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Affiliation(s)
- Qian Xu
- Department of Obstetrics, Linyi People's Hospital, Linyi, China
| | - Yonghui Song
- Department of Obstetrics, Linyi People's Hospital, Linyi, China
| | - Lili Lu
- Department of Obstetrics, Linyi People's Hospital, Linyi, China
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11
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Daehn IS, Duffield JS. The glomerular filtration barrier: a structural target for novel kidney therapies. Nat Rev Drug Discov 2021; 20:770-788. [PMID: 34262140 PMCID: PMC8278373 DOI: 10.1038/s41573-021-00242-0] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/28/2021] [Indexed: 12/19/2022]
Abstract
Loss of normal kidney function affects more than 10% of the population and contributes to morbidity and mortality. Kidney diseases are currently treated with immunosuppressive agents, antihypertensives and diuretics with partial but limited success. Most kidney disease is characterized by breakdown of the glomerular filtration barrier (GFB). Specialized podocyte cells maintain the GFB, and structure-function experiments and studies of intercellular communication between the podocytes and other GFB cells, combined with advances from genetics and genomics, have laid the groundwork for a new generation of therapies that directly intervene at the GFB. These include inhibitors of apolipoprotein L1 (APOL1), short transient receptor potential channels (TRPCs), soluble fms-like tyrosine kinase 1 (sFLT1; also known as soluble vascular endothelial growth factor receptor 1), roundabout homologue 2 (ROBO2), endothelin receptor A, soluble urokinase plasminogen activator surface receptor (suPAR) and substrate intermediates for coenzyme Q10 (CoQ10). These molecular targets converge on two key components of GFB biology: mitochondrial function and the actin-myosin contractile machinery. This Review discusses therapies and developments focused on maintaining GFB integrity, and the emerging questions in this evolving field.
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Affiliation(s)
- Ilse S Daehn
- Department of Medicine, Division of Nephrology, The Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Jeremy S Duffield
- Research and Development, Prime Medicine, Cambridge, MA, USA. .,Department of Medicine, University of Washington, Seattle, WA, USA. .,Department of Medicine, Massachusetts General Hospital, Boston, MA, USA.
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12
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Müller-Deile J, Sarau G, Kotb AM, Jaremenko C, Rolle-Kampczyk UE, Daniel C, Kalkhof S, Christiansen SH, Schiffer M. Novel diagnostic and therapeutic techniques reveal changed metabolic profiles in recurrent focal segmental glomerulosclerosis. Sci Rep 2021; 11:4577. [PMID: 33633212 PMCID: PMC7907124 DOI: 10.1038/s41598-021-83883-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 02/09/2021] [Indexed: 12/19/2022] Open
Abstract
Idiopathic forms of Focal Segmental Glomerulosclerosis (FSGS) are caused by circulating permeability factors, which can lead to early recurrence of FSGS and kidney failure after kidney transplantation. In the past three decades, many research endeavors were undertaken to identify these unknown factors. Even though some potential candidates have been recently discussed in the literature, "the" actual factor remains elusive. Therefore, there is an increased demand in FSGS research for the use of novel technologies that allow us to study FSGS from a yet unexplored angle. Here, we report the successful treatment of recurrent FSGS in a patient after living-related kidney transplantation by removal of circulating factors with CytoSorb apheresis. Interestingly, the classical published circulating factors were all in normal range in this patient but early disease recurrence in the transplant kidney and immediate response to CytoSorb apheresis were still suggestive for pathogenic circulating factors. To proof the functional effects of the patient's serum on podocytes and the glomerular filtration barrier we used a podocyte cell culture model and a proteinuria model in zebrafish to detect pathogenic effects on the podocytes actin cytoskeleton inducing a functional phenotype and podocyte effacement. We then performed Raman spectroscopy in the < 50 kDa serum fraction, on cultured podocytes treated with the FSGS serum and in kidney biopsies of the same patient at the time of transplantation and at the time of disease recurrence. The analysis revealed changes in podocyte metabolome induced by the FSGS serum as well as in focal glomerular and parietal epithelial cell regions in the FSGS biopsy. Several altered Raman spectra were identified in the fractionated serum and metabolome analysis by mass spectrometry detected lipid profiles in the FSGS serum, which were supported by disturbances in the Raman spectra. Our novel innovative analysis reveals changed lipid metabolome profiles associated with idiopathic FSGS that might reflect a new subtype of the disease.
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Affiliation(s)
- Janina Müller-Deile
- Department of Nephrology and Hypertension, Friedrich-Alexander-University (FAU) Erlangen-Nuremberg, Erlangen, Germany.
| | - George Sarau
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Dresden, Germany.,Leuchs Emeritus Group, Max Planck Institute for the Science of Light, Erlangen, Germany.,Institute for Nanotechnology and Correlative Microscopy eV INAM, Forchheim, Germany
| | - Ahmed M Kotb
- Department of Nephrology and Hypertension, Friedrich-Alexander-University (FAU) Erlangen-Nuremberg, Erlangen, Germany.,Department of Anatomy and Histology, Faculty of Veterinary Medicine, Assiut University, Asyût, Egypt
| | - Christian Jaremenko
- Institute for Nanotechnology and Correlative Microscopy eV INAM, Forchheim, Germany.,Institute of Optics, Information and Photonics, Friedrich-Alexander-University (FAU) Erlangen-Nuremberg, Erlangen, Germany
| | - Ulrike E Rolle-Kampczyk
- Department Molecular Systems Biology, Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - Christoph Daniel
- Department of Nephropathology, Friedrich-Alexander-University (FAU) Erlangen-Nuremberg, Erlangen, Germany
| | - Stefan Kalkhof
- Institute for Bioanalysis, University of Applied Sciences Coburg, Coburg, Germany.,Department of Molecular Systems Biology, Helmholtz-Centre for Environmental Research-UFZ, Leipzig, Germany
| | - Silke H Christiansen
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Dresden, Germany.,Leuchs Emeritus Group, Max Planck Institute for the Science of Light, Erlangen, Germany.,Institute for Nanotechnology and Correlative Microscopy eV INAM, Forchheim, Germany.,Physics Department, Freie Universität Berlin, Berlin, Germany
| | - Mario Schiffer
- Department of Nephrology and Hypertension, Friedrich-Alexander-University (FAU) Erlangen-Nuremberg, Erlangen, Germany
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13
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Yang K, Bai Y, Yu N, Lu B, Han G, Yin C, Pang Z. Huidouba Improved Podocyte Injury by Down-Regulating Nox4 Expression in Rats With Diabetic Nephropathy. Front Pharmacol 2021; 11:587995. [PMID: 33390962 PMCID: PMC7774310 DOI: 10.3389/fphar.2020.587995] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/26/2020] [Indexed: 12/14/2022] Open
Abstract
Diabetic nephropathy (DN), as the most common microvascular complication of diabetes mellitus (DM), has become one of the leading causes of end-stage renal disease (ESRD). Numerous studies have indicated that podocyte loss plays an important role in the development of DN and can even cause proteinuria in the early stage of DN. In the study, we found that Huidouba (HDB) significantly decreased the level of fasting blood glucose (FBG), the ratio of microalbumin to urine creatine (mAlb/Ucr), serum creatine (Scr), serum urea nitrogen (BUN), and malondialdehyde (MDA) in the kidney and downregulated the expression of Nox4 predominantly located in glomerular tissue while upregulating nephrin and WT1 expression in DN rats. In addition, HDB could also reduce podocyte damage and glomerular basement membrane (GBM) pathologic changes, as shown by transmission electron microscopy (TEM). In vitro study showed that HDB could inhibit high glucose (HG)-induced Reactive Oxygen Species (ROS) production and protect against podocyte apoptosis by downregulated Nox4 expression in podocytes. These results may provide a scientific basis for developing HDB as a potential folk medicine for the treatment of DN.
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Affiliation(s)
- KunBao Yang
- School of Pharmacy, Minzu University of China, Beijing, China.,Hebei Key Laboratory of Research and Development for Chinese Medicine, Chengde Medical University, Hebei, China
| | - YingHui Bai
- School of Pharmacy, Minzu University of China, Beijing, China
| | - Ning Yu
- The Affiliated Hospital of Chengde Medical University, Hebei, China
| | - BiNan Lu
- School of Pharmacy, Minzu University of China, Beijing, China
| | - GuiYan Han
- The Affiliated Hospital of Chengde Medical University, Hebei, China
| | - ChangJiang Yin
- Hebei Key Laboratory of Research and Development for Chinese Medicine, Chengde Medical University, Hebei, China
| | - ZongRan Pang
- School of Pharmacy, Minzu University of China, Beijing, China
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14
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Wang Y, Shi M, Hong Z, Kang J, Pan H, Yan C. MiR-130a-3p Has Protective Effects in Alzheimer's Disease via Targeting DAPK1. Am J Alzheimers Dis Other Demen 2021; 36:15333175211020572. [PMID: 34128388 PMCID: PMC10581145 DOI: 10.1177/15333175211020572] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The present study investigated the role and potential mechanisms of miR-130a-3p in AD. SH-SY5Y cells were treated with Aβ 1-42 to construct AD cell models. APP/PS1 mice were used for the animal experiments. MiR-130a-3p was downregulated in Aβ-induced SH-SY5Y cells. Overexpression of miR-130a-3p attenuates Aβ induced SH-SY5Y cell apoptosis. Low miR-130a-3p expression was detected in the hippocampus tissues of AD mice. The Morris water maze (MWM) results indicated that miR-130a-3p upregulation reduced the escape latency time and increased the time of AD mice spent in the target quadrant. DAPK1 was the target gene of miR-130a-3p. High DAPK1 mRNA level was detected in Aβ treated PC 12 cells and in the hippocampus tissues of AD mice. It was concluded that overexpression of miR-130a-3p may attenuate Aβ-induced neurotoxicity and improve the cognitive function of AD mice via targeting DAPK1.
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Affiliation(s)
- Yanbo Wang
- Department of Neurology, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Zhejiang, China
| | - Min Shi
- Department of Neurology, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Zhejiang, China
| | - Zhenmei Hong
- Department of Neurology, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Zhejiang, China
| | - Junling Kang
- Department of Neurology, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Zhejiang, China
| | - Haiyan Pan
- Department of Neurology, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Zhejiang, China
| | - Ci Yan
- Affiliated Mental Health Center, Zhejiang University School of Medicine, Zhejiang, China
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15
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Jena MK, Sharma NR, Petitt M, Maulik D, Nayak NR. Pathogenesis of Preeclampsia and Therapeutic Approaches Targeting the Placenta. Biomolecules 2020; 10:biom10060953. [PMID: 32599856 PMCID: PMC7357118 DOI: 10.3390/biom10060953] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/20/2020] [Accepted: 06/21/2020] [Indexed: 02/07/2023] Open
Abstract
Preeclampsia (PE) is a serious pregnancy complication, affecting about 5–7% of pregnancies worldwide and is characterized by hypertension and damage to multiple maternal organs, primarily the liver and kidneys. PE usually begins after 20 weeks’ gestation and, if left untreated, can lead to serious complications and lifelong disabilities—even death—in both the mother and the infant. As delivery is the only cure for the disease, treatment is primarily focused on the management of blood pressure and other clinical symptoms. The pathogenesis of PE is still not clear. Abnormal spiral artery remodeling, placental ischemia and a resulting increase in the circulating levels of vascular endothelial growth factor receptor-1 (VEGFR-1), also called soluble fms-like tyrosine kinase-1 (sFlt-1), are believed to be among the primary pathologies associated with PE. sFlt-1 is produced mainly in the placenta during pregnancy and acts as a decoy receptor, binding to free VEGF (VEGF-A) and placental growth factor (PlGF), resulting in the decreased bioavailability of each to target cells. Despite the pathogenic effects of increased sFlt-1 on the maternal vasculature, recent studies from our laboratory and others have strongly indicated that the increase in sFlt-1 in PE may fulfill critical protective functions in preeclamptic pregnancies. Thus, further studies on the roles of sFlt-1 in normal and preeclamptic pregnancies are warranted for the development of therapeutic strategies targeting VEGF signaling for the treatment of PE. Another impediment to the treatment of PE is the lack of suitable methods for delivery of cargo to placental cells, as PE is believed to be of placental origin and most available therapies for PE adversely impact both the mother and the fetus. The present review discusses the pathogenesis of PE, the complex role of sFlt-1 in maternal disease and fetal protection, and the recently developed placenta-targeted drug delivery system for the potential treatment of PE with candidate therapeutic agents.
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Affiliation(s)
- Manoj Kumar Jena
- Department of Biotechnology, School of Bioengineering and Biosciences, Lovely Professional University (LPU), Phagwara, Punjab 144411, India;
- Correspondence:
| | - Neeta Raj Sharma
- Department of Biotechnology, School of Bioengineering and Biosciences, Lovely Professional University (LPU), Phagwara, Punjab 144411, India;
| | - Matthew Petitt
- Redwood Biomedical Editing, Redwood City, CA 94061, USA;
| | - Devika Maulik
- Department of Obstetrics and Gynecology, UMKC School of Medicine, Kansas City, MO 64108, USA; (D.M.); (N.R.N.)
| | - Nihar Ranjan Nayak
- Department of Obstetrics and Gynecology, UMKC School of Medicine, Kansas City, MO 64108, USA; (D.M.); (N.R.N.)
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16
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Wang J, Gao F, Zhao X, Cai Y, Jin H. Integrated analysis of the transcriptome-wide m6A methylome in preeclampsia and healthy control placentas. PeerJ 2020; 8:e9880. [PMID: 32983644 PMCID: PMC7500358 DOI: 10.7717/peerj.9880] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 08/15/2020] [Indexed: 12/12/2022] Open
Abstract
N6-methyladenosine (m6A) is the most prevalent modification in eukaryotic mRNA and potential regulatory functions of m6A have been shown by mapping the RNA m6A modification landscape. m6A modification in active gene regulation manifests itself as altered methylation profiles. The number of reports regarding to the profiling of m6A modification and its potential role in the placenta of preeclampsia (PE) is small. In this work, placental samples were collected from PE and control patients. Expression of m6A-related genes was investigated using quantitative real-time PCR. MeRIP-seq and RNA-seq were performed to detect m6A methylation and mRNA expression profiles. Gene ontology (GO) functional and Kyoto encyclopedia of genes and genomes (KEGG) pathway analyses were also conducted to explore the modified genes and their clinical significance. Our findings show that METTL3 and METTL14 were up-regulated in PE. In total, 685 m6A peaks were differentially expressed as determined by MeRIP-seq. Altered peaks of m6A-modified transcripts were primarily associated with nitrogen compound metabolic process, positive regulation of vascular-associated smooth muscle cell migration, and endoplasmic reticulum organisation. The m6A hyper-methylated genes of Wnt/β-catenin signalling pathway, mTOR signalling pathway, and several cancer-related pathways may contribute to PE. We also verified that the significant increase of HSPA1A mRNA and protein expression was regulated by m6A modification, suggesting m6A plays a key role in the regulation of gene expression. Our data provide novel information regarding m6A modification alterations in PE and help our understanding of the pathogenesis of PE.
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Affiliation(s)
- Jin Wang
- Prenatal Diagnosis Center, Jinan Maternal and Child Health Care Hospital, Jinan, China
| | - Fengchun Gao
- Obstetrical Department, Jinan Maternal and Child Health Care Hospital, Jinan, China
| | - Xiaohan Zhao
- Prenatal Diagnosis Center, Jinan Maternal and Child Health Care Hospital, Jinan, China
| | - Yan Cai
- Prenatal Diagnosis Center, Jinan Maternal and Child Health Care Hospital, Jinan, China
| | - Hua Jin
- Prenatal Diagnosis Center, Jinan Maternal and Child Health Care Hospital, Jinan, China
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17
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Hemmatzadeh M, Shomali N, Yousefzadeh Y, Mohammadi H, Ghasemzadeh A, Yousefi M. MicroRNAs: Small molecules with a large impact on pre-eclampsia. J Cell Physiol 2019; 235:3235-3248. [PMID: 31595979 DOI: 10.1002/jcp.29286] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 09/03/2019] [Indexed: 12/22/2022]
Abstract
As critical mediators in biological processes, microRNAs (miRNAs) which are small and endogenous noncoding RNAs have been associated with disease progression, cell proliferation, and development. Pre-eclampsia (PE), a pregnancy-related disorder with no early markers or symptoms is recognized as the main reason for fetal and maternal mortality and morbidity in the initial steps or even during pregnancy, worldwide. Clinical symptoms usually appear in the third trimester of the pregnancy. Although numerous research have unraveled several aspects of placenta development abnormalities associated with abnormal trophoblastic invasion and angiogenesis modification, many questions about the PE pathogenesis remains unanswered. A large number of studies have shown the important role of miRNAs as potential biomarkers in the PE prognosis and diagnosis. Here, the latest investigations about the PE and placental miRNAs expression, as well as, the crucial role of miRNA molecules including miR-210 and miR-155 which are deregulated in patients with PE, will be argued.
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Affiliation(s)
- Maryam Hemmatzadeh
- Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Immunology, Faculty of Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Navid Shomali
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yousef Yousefzadeh
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamed Mohammadi
- Department of Immunology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran.,Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Aliyeh Ghasemzadeh
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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18
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Pillay P, Vatish M, Duarte R, Moodley J, Mackraj I. Exosomal microRNA profiling in early and late onset preeclamptic pregnant women reflects pathophysiology. Int J Nanomedicine 2019; 14:5637-5657. [PMID: 31413567 PMCID: PMC6661992 DOI: 10.2147/ijn.s208865] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 04/30/2019] [Indexed: 12/29/2022] Open
Abstract
Background: Preeclampsia is the leading cause of maternal and fetal mortality due to the inability to diagnose and treat the disorder early in pregnancy. This is attributed to the complex pathophysiology and unknown etiology of the disorder, which is modulated by several known and unknown factors. Exosomes have recently been implicated as possible mediators of the pathogenesis of preeclampsia, with, however, no evidence linking these nanovesicles to the pathophysiology of preeclampsia and its subtypes. Methods: To better understand the pathophysiological role of exosomes in preeclampsia, we have analyzed the exosomal microRNA in early and late onset preeclamptic women in comparison to their gestationally matched normotensive controls using Digital Direct Detection (NanoString Technologies). Results: For the first time, distinct exosomal microRNA signatures in early and late onset preeclampsia have been identified. Moreover, these signatures indicate that exosomes are involved in key pathological features associated with preeclampsia and differentiate between the subtypes. Conclusion: This study forms the basis for the diagnostic and functional validation of the identified signatures as biomarkers of preeclampsia and its subtypes.
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Affiliation(s)
- Preenan Pillay
- Discipline of Human Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of Kwazulu-Natal, Durban, South Africa
| | - Manu Vatish
- Nuffield Department of Women's and Reproductive Health, Women's Centre, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Raquel Duarte
- Department of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Jack Moodley
- Women's Health and HIV Research Group, Department of Obstetrics and Gynaecology, University of Kwazulu-Natal, Durban, South Africa
| | - Irene Mackraj
- School of Laboratory Medicine and Medical Sciences, University of Kwazulu-Natal, Durban, South Africa
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19
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Müller-Deile J, Schenk H, Niggemann P, Bolaños-Palmieri P, Teng B, Higgs A, Staggs L, Haller H, Schroder P, Schiffer M. Mutation of microphthalmia-associated transcription factor (mitf) in zebrafish sensitizes for glomerulopathy. Biol Open 2019; 8:bio.040253. [PMID: 30718228 PMCID: PMC6451330 DOI: 10.1242/bio.040253] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Different glomerular diseases that affect podocyte homeostasis can clinically present as nephrotic syndrome with massive proteinuria, hypoalbuminemia, hyperlipidemia and edema. Up to now, no drugs that specifically target the actin cytoskeleton of podocytes are on the market and model systems for library screenings to develop anti-proteinuric drugs are of high interest. We developed a standardized proteinuria model in zebrafish using puromycin aminonucleoside (PAN) via treatment in the fish water to allow for further drug testing to develop anti-proteinuric drugs for the treatment of glomerular diseases. We noticed that fish that carry the nacre-mutation show a significantly higher susceptibility for the disruption of the glomerular filtration barrier following PAN treatment, which results in a more pronounced proteinuria phenotype. Nacre zebrafish inherit a mutation yielding a truncated version of microphthalmia-associated transcription factor/melanogenesis associated transcription factor (mitf). We hypothesized that the nacre mutation may lead to reduced formin expression and defects in cytoskeletal rearrangement. Based on the observations in zebrafish, we carried out a PAN treatment on cultured human podocytes after knockdown with MITF siRNA causing a rearrangement of the actin cytoskeleton.
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Affiliation(s)
- Janina Müller-Deile
- Department of Nephrology, Hannover Medical School, Hannover 30625, Germany.,Department of Nephrology and Hypertension, University of Erlangen-Nurnberg, Erlangen 91054, Germany
| | - Heiko Schenk
- Department of Nephrology, Hannover Medical School, Hannover 30625, Germany.,Division of Nephrology, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04609, USA
| | - Philipp Niggemann
- Department of Nephrology, Hannover Medical School, Hannover 30625, Germany.,Division of Nephrology, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04609, USA
| | - Patricia Bolaños-Palmieri
- Department of Nephrology, Hannover Medical School, Hannover 30625, Germany.,Department of Nephrology and Hypertension, University of Erlangen-Nurnberg, Erlangen 91054, Germany
| | - Beina Teng
- Department of Nephrology, Hannover Medical School, Hannover 30625, Germany.,Department of Nephrology and Hypertension, University of Erlangen-Nurnberg, Erlangen 91054, Germany
| | - Alysha Higgs
- Division of Nephrology, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04609, USA
| | - Lynne Staggs
- Division of Nephrology, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04609, USA
| | - Hermann Haller
- Department of Nephrology, Hannover Medical School, Hannover 30625, Germany.,Division of Nephrology, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04609, USA
| | - Patricia Schroder
- Division of Nephrology, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04609, USA
| | - Mario Schiffer
- Department of Nephrology, Hannover Medical School, Hannover 30625, Germany .,Department of Nephrology and Hypertension, University of Erlangen-Nurnberg, Erlangen 91054, Germany
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20
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Yang Y, Xi L, Ma Y, Zhu X, Chen R, Luan L, Yan J, An R. The lncRNA small nucleolar RNA host gene 5 regulates trophoblast cell proliferation, invasion, and migration via modulating miR-26a-5p/N-cadherin axis. J Cell Biochem 2018; 120:3173-3184. [PMID: 30242892 DOI: 10.1002/jcb.27583] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 08/08/2018] [Indexed: 12/29/2022]
Abstract
Pre-eclampsia (PE) is a pregnancy-specific disease characterized by the occurrence of hypertension and proteinuria after two weeks of gestation. Long noncoding RNAs (lncRNAs) are emerging as key regulators in PE development. This study aims to investigate the role of lncRNA, small nucleolar RNA host gene 5 (SNHG5), in the pathogenesis of PE. The expression of SNHG5 was significantly downregulated in placental tissues from patients with severe PE compared normal controls. Overexpression of SNHG5 promoted trophoblast (HTR-8/SVneo) cell proliferation, invasion, and migration, and flow cytometry results showed that SNHG5 overexpression inhibited apoptosis and caused a decrease of cell population at the G 0 /G 1 phase and an increase of cell population at the S phase, while knockdown of SNHG5 had the opposite effects. The interaction between SNHG5 and miR-26a-5p was predicted by bioinformatics analysis and confirmed by luciferase reporter assay and RNA immunoprecipitation, and miR-26a-5p was negatively regulated by SNHG5; miR-26a-5p expression was upregulated in PE placental tissues and was inversely correlated with SNHG5 expression. Furthermore, miR-26a-5p was predicted to target the 3' untranslated region of N-cadherin, which was confirmed by luciferase reporter assay, and miR-26a-5p overexpression suppressed N-cadherin expression in HTR-8/SVneo cells. N-cadherin mRNA expression was downregulated in PE placental tissues and was positively correlated with SNHG5 expression. Both overexpression of miR-26a-5p and knockdown of N-cadherin suppressed HTR-8/SVneo cell invasion and migration, and also attenuated the effects of SNHG5 on the cellular functions of HTR-8/SVneo cells. In conclusion, our study suggested that SNHG5 promotes trophoblast cell proliferation, invasion, and migration at least partly via regulating the miR-26a-5p/N-cadherin axis.
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Affiliation(s)
- Yang Yang
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Gynecology and Obstetrics, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Lan Xi
- Department of Obstetrics, Baoji Maternal and Children Health Hospital, Baoji, China
| | - Yuan Ma
- Department of Gynecology and Obstetrics, Tangdu Hospital, Medical University of the Air Force, Xi'an, China
| | - Xiaoming Zhu
- Department of Gynecology and Obstetrics, Tangdu Hospital, Medical University of the Air Force, Xi'an, China
| | - Rui Chen
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Lixia Luan
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Jiajia Yan
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Ruifang An
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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