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Xiao Y, Hu L, Duan J, Che H, Wang W, Yuan Y, Xu J, Chen D, Zhao S. Polystyrene microplastics enhance microcystin-LR-induced cardiovascular toxicity and oxidative stress in zebrafish embryos. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 352:124022. [PMID: 38679130 DOI: 10.1016/j.envpol.2024.124022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 04/11/2024] [Accepted: 04/20/2024] [Indexed: 05/01/2024]
Abstract
The health risks associated with combined exposure to microplastics (MPs) and cyanobacteria toxins have gained increasing attention due to the large-scale prevalence of cyanobacterial blooms and accumulation of MPs in aquatic environments. Therefore, we explored the cardiovascular toxic effects of microcystin-LR (MC-LR, 1, 10, 100 μg/L) in the presence of 5 μm polystyrene microplastics (PS-MPs, 100 μg/L) and 80 nm polystyrene nanoplastics (PS-NPs, 100 μg/L) in zebrafish models. Embryos were exposed to certain PS-MPs and PS-NPs conditions in water between 3 h post-fertilization (hpf) and 168 hpf. Compared to MC-LR alone, a significant decrease in heart rate was observed as well as notable pericardial edema in the MC-LR + PS-MPs/NPs groups. At the same time, sinus venosus and bulbus arteriosus (SV-BA) distances were significantly increased. Furthermore, the addition of PS-MPs/NPs caused thrombosis in the caudal vein and more severe vascular damage in zebrafish larvae compared to MC-LR alone. Our findings revealed that combined exposure to PS-NPs and MC-LR could significantly decreased the expression of genes associated with cardiovascular development (myh6, nkx2.5, tnnt2a, and vegfaa), ATPase (atp1a3b, atp1b2b, atp2a1l, atp2b1a, and atp2b4), and the calcium channel (cacna1ab and ryr2a) compared to exposure to MC-LR alone. In addition, co-exposure with PS-MPs/NPs exacerbated the MC-LR-induced reactive oxygen species (ROS) production, as well as the ROS-stimulated apoptosis and heightened inflammation. We also discovered that astaxanthin (ASTA) treatment partially attenuated these cardiovascular toxic effects. Our findings confirm that exposure to MC-LR and PS-MPs/NPs affects cardiovascular development through calcium signaling interference and ROS-induced cardiovascular cell apoptosis. This study highlights the potential environmental risks of the co-existence of MC-LR and PS-MPs/NPs for fetal health, particularly cardiovascular development.
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Affiliation(s)
- Yuchun Xiao
- School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Liwen Hu
- School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Jiayao Duan
- School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Huimin Che
- School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Wenxin Wang
- School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Yuan Yuan
- School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Jiayi Xu
- School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Daojun Chen
- School of Medical Technology, Anhui Medical College, Hefei, 230601, China
| | - Sujuan Zhao
- School of Public Health, Anhui Medical University, Hefei, 230032, China.
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2
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Han Z, Wang Z, Rittschof D, Huang Z, Chen L, Hao H, Yao S, Su P, Huang M, Zhang YY, Ke C, Feng D. New genes helped acorn barnacles adapt to a sessile lifestyle. Nat Genet 2024; 56:970-981. [PMID: 38654131 DOI: 10.1038/s41588-024-01733-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 03/21/2024] [Indexed: 04/25/2024]
Abstract
Barnacles are the only sessile lineages among crustaceans, and their sessile life begins with the settlement of swimming larvae (cyprids) and the formation of protective shells. These processes are crucial for adaptation to a sessile lifestyle, but the underlying molecular mechanisms remain poorly understood. While investigating these mechanisms in the acorn barnacle, Amphibalanus amphitrite, we discovered a new gene, bcs-6, which is involved in the energy metabolism of cyprid settlement and originated from a transposon by acquiring the promoter and cis-regulatory element. Unlike mollusks, the barnacle shell comprises alternate layers of chitin and calcite and requires another new gene, bsf, which generates silk-like fibers that efficiently bind chitin and aggregate calcite in the aquatic environment. Our findings highlight the importance of exploring new genes in unique adaptative scenarios, and the results will provide important insights into gene origin and material development.
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Affiliation(s)
- Zhaofang Han
- State Key Laboratory of Mariculture Breeding, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Zhixuan Wang
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Daniel Rittschof
- Division of Marine Science and Conservation, Nicholas School of the Environment, Duke University, Beaufort, NC, USA
| | - Zekun Huang
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Liying Chen
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Huanhuan Hao
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, Xiamen University, Xiamen, China
| | - Shanshan Yao
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, Xiamen University, Xiamen, China
| | - Pei Su
- State Key Laboratory of Mariculture Breeding, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Miaoqin Huang
- State Key Laboratory of Mariculture Breeding, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Yuan-Ye Zhang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, China.
| | - Caihuan Ke
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China.
| | - Danqing Feng
- State Key Laboratory of Mariculture Breeding, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China.
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, Xiamen University, Xiamen, China.
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Sun J, Peterson EA, Chen X, Wang J. ptx3a + fibroblast/epicardial cells provide a transient macrophage niche to promote heart regeneration. Cell Rep 2024; 43:114092. [PMID: 38607913 PMCID: PMC11092985 DOI: 10.1016/j.celrep.2024.114092] [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: 11/17/2023] [Revised: 02/28/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
Macrophages conduct critical roles in heart repair, but the niche required to nurture and anchor them is poorly studied. Here, we investigated the macrophage niche in the regenerating heart. We analyzed cell-cell interactions through published single-cell RNA sequencing datasets and identified a strong interaction between fibroblast/epicardial (Fb/Epi) cells and macrophages. We further visualized the association of macrophages with Fb/Epi cells and the blockage of macrophage response without Fb/Epi cells in the regenerating zebrafish heart. Moreover, we found that ptx3a+ epicardial cells associate with reparative macrophages, and their depletion resulted in fewer reparative macrophages. Further, we identified csf1a expression in ptx3a+ cells and determined that pharmacological inhibition of the csf1a pathway or csf1a knockout blocked the reparative macrophage response. Moreover, we found that genetic overexpression of csf1a enhanced the reparative macrophage response with or without heart injury. Altogether, our studies illuminate a cardiac Fb/Epi niche, which mediates a beneficial macrophage response after heart injury.
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Affiliation(s)
- Jisheng Sun
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA 30322, USA
| | - Elizabeth A Peterson
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA 30322, USA
| | - Xin Chen
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA 30322, USA
| | - Jinhu Wang
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA 30322, USA.
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Kairišs K, Sokolova N, Zilova L, Schlagheck C, Reinhardt R, Baumbach T, Faragó T, van de Kamp T, Wittbrodt J, Weinhardt V. Visualisation of gene expression within the context of tissues using an X-ray computed tomography-based multimodal approach. Sci Rep 2024; 14:8543. [PMID: 38609416 PMCID: PMC11015006 DOI: 10.1038/s41598-024-58766-5] [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: 01/08/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
The development of an organism is orchestrated by the spatial and temporal expression of genes. Accurate visualisation of gene expression patterns in the context of the surrounding tissues offers a glimpse into the mechanisms that drive morphogenesis. We developed correlative light-sheet fluorescence microscopy and X-ray computed tomography approach to map gene expression patterns to the whole organism`s 3D anatomy. We show that this multimodal approach is applicable to gene expression visualized by protein-specific antibodies and fluorescence RNA in situ hybridisation offering a detailed understanding of individual phenotypic variations in model organisms. Furthermore, the approach offers a unique possibility to identify tissues together with their 3D cellular and molecular composition in anatomically less-defined in vitro models, such as organoids. We anticipate that the visual and quantitative insights into the 3D distribution of gene expression within tissue architecture, by multimodal approach developed here, will be equally valuable for reference atlases of model organisms development, as well as for comprehensive screens, and morphogenesis studies of in vitro models.
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Affiliation(s)
- Kristaps Kairišs
- Centre for Organismal Studies, 69120, Heidelberg, Germany
- HeiKa Graduate School On "Functional Materials", Heidelberg, Germany
| | - Natalia Sokolova
- Centre for Organismal Studies, 69120, Heidelberg, Germany
- Heidelberg International Biosciences Graduate School HBIGS, Heidelberg, Germany
| | - Lucie Zilova
- Centre for Organismal Studies, 69120, Heidelberg, Germany
| | - Christina Schlagheck
- Centre for Organismal Studies, 69120, Heidelberg, Germany
- HeiKa Graduate School On "Functional Materials", Heidelberg, Germany
- Heidelberg International Biosciences Graduate School HBIGS, Heidelberg, Germany
| | - Robert Reinhardt
- Centre for Organismal Studies, 69120, Heidelberg, Germany
- European Molecular Biology Laboratory, Heidelberg, Germany
| | - Tilo Baumbach
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
- Laboratory for Applications of Synchrotron Radiation (LAS), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Tomáš Faragó
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
| | - Thomas van de Kamp
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
- Laboratory for Applications of Synchrotron Radiation (LAS), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
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Qi S, Dai S, Zhou X, Wei X, Chen P, He Y, Kocher TD, Wang D, Li M. Dmrt1 is the only male pathway gene tested indispensable for sex determination and functional testis development in tilapia. PLoS Genet 2024; 20:e1011210. [PMID: 38536778 PMCID: PMC10971778 DOI: 10.1371/journal.pgen.1011210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 03/05/2024] [Indexed: 04/05/2024] Open
Abstract
Sex is determined by multiple factors derived from somatic and germ cells in vertebrates. We have identified amhy, dmrt1, gsdf as male and foxl2, foxl3, cyp19a1a as female sex determination pathway genes in Nile tilapia. However, the relationship among these genes is largely unclear. Here, we found that the gonads of dmrt1;cyp19a1a double mutants developed as ovaries or underdeveloped testes with no germ cells irrespective of their genetic sex. In addition, the gonads of dmrt1;cyp19a1a;cyp19a1b triple mutants still developed as ovaries. The gonads of foxl3;cyp19a1a double mutants developed as testes, while the gonads of dmrt1;cyp19a1a;foxl3 triple mutants eventually developed as ovaries. In contrast, the gonads of amhy;cyp19a1a, gsdf;cyp19a1a, amhy;foxl2, gsdf;foxl2 double and amhy;cyp19a1a;cyp19a1b, gsdf;cyp19a1a;cyp19a1b triple mutants developed as testes with spermatogenesis via up-regulation of dmrt1 in both somatic and germ cells. The gonads of amhy;foxl3 and gsdf;foxl3 double mutants developed as ovaries but with germ cells in spermatogenesis due to up-regulation of dmrt1. Taking the respective ovary and underdeveloped testis of dmrt1;foxl3 and dmrt1;foxl2 double mutants reported previously into consideration, we demonstrated that once dmrt1 mutated, the gonad could not be rescued to functional testis by mutating any female pathway gene. The sex reversal caused by mutation of male pathway genes other than dmrt1, including its upstream amhy and downstream gsdf, could be rescued by mutating female pathway gene. Overall, our data suggested that dmrt1 is the only male pathway gene tested indispensable for sex determination and functional testis development in tilapia.
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Affiliation(s)
- Shuangshuang Qi
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Shengfei Dai
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Xin Zhou
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Xueyan Wei
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Ping Chen
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Yuanyuan He
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Thomas D. Kocher
- Department of Biology, University of Maryland, College Park, Maryland, United States of America
| | - Deshou Wang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Minghui Li
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
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6
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Patel BK, Raabe MJ, Lang ER, Song Y, Lu C, Deshpande V, Nieman LT, Aryee MJ, Chen YB, Ting DT, DeFilipp Z. Spatial transcriptomics reveals distinct tissue niches linked with steroid responsiveness in acute gastrointestinal GVHD. Blood 2023; 142:1831-1844. [PMID: 37699201 PMCID: PMC10731919 DOI: 10.1182/blood.2023020644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 08/14/2023] [Accepted: 08/14/2023] [Indexed: 09/14/2023] Open
Abstract
Severe acute graft-versus-host disease (aGVHD) is associated with significant mortality and morbidity, especially in steroid-resistant (SR) cases. Spatial transcriptomic technology can elucidate tissue-based interactions in vivo and possibly identify predictors of treatment response. Tissue sections from 32 treatment-naïve patients with biopsy-confirmed lower gastrointestinal (GI) aGVHD were obtained. The GeoMx digital spatial profiler was used to capture transcriptome profiles of >18 000 genes from different foci of immune infiltrates, colonic epithelium, and vascular endothelium. Each tissue compartment sampled showed 2 distinct clusters that were analyzed for differential expression and spatially resolved correlation of gene signatures. Classic cell-mediated immunity signatures, normal differentiated epithelial cells, and inflamed vasculature dominated foci sampled from steroid-sensitive cases. In contrast, a neutrophil predominant noncanonical inflammation with regenerative epithelial cells and some indication of angiogenic endothelial response was overrepresented in areas from SR cases. Evaluation of potential prognostic biomarkers identified ubiquitin specific peptidase 17-like (USP17L) family of genes as being differentially expressed in immune cells from patients with worsened survival. In summary, we demonstrate distinct tissue niches with unique gene expression signatures within lower GI tissue from patients with aGVHD and provide evidence of a potential prognostic biomarker.
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Affiliation(s)
- Bidish K. Patel
- Center for Cancer Research, Mass General Cancer Center, Boston, MA
| | - Michael J. Raabe
- Center for Cancer Research, Mass General Cancer Center, Boston, MA
| | - Evan R. Lang
- Center for Cancer Research, Mass General Cancer Center, Boston, MA
| | - Yuhui Song
- Center for Cancer Research, Mass General Cancer Center, Boston, MA
| | - Chenyue Lu
- Center for Cancer Research, Mass General Cancer Center, Boston, MA
| | - Vikram Deshpande
- Department of Pathology, Massachusetts General Hospital, Boston, MA
| | - Linda T. Nieman
- Center for Cancer Research, Mass General Cancer Center, Boston, MA
| | - Martin J. Aryee
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA
- Department of Data Sciences, Dana-Farber Cancer Institute, Boston, MA
| | - Yi-Bin Chen
- Hematopoietic Cell Transplant and Cellular Therapy Program, Massachusetts General Hospital, Boston, MA
| | - David T. Ting
- Center for Cancer Research, Mass General Cancer Center, Boston, MA
- Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Zachariah DeFilipp
- Hematopoietic Cell Transplant and Cellular Therapy Program, Massachusetts General Hospital, Boston, MA
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7
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Liu C, Liu X, He Z, Zhang J, Tan X, Yang W, Zhang Y, Yu T, Liao S, Dai L, Xu Z, Li F, Huang Y, Zhao J. Proenkephalin-A secreted by renal proximal tubules functions as a brake in kidney regeneration. Nat Commun 2023; 14:7167. [PMID: 37935684 PMCID: PMC10630464 DOI: 10.1038/s41467-023-42929-5] [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: 11/16/2022] [Accepted: 10/26/2023] [Indexed: 11/09/2023] Open
Abstract
Organ regeneration necessitates precise coordination of accelerators and brakes to restore organ function. However, the mechanisms underlying this intricate molecular crosstalk remain elusive. In this study, the level of proenkephalin-A (PENK-A), expressed by renal proximal tubular epithelial cells, decreases significantly with the loss of renal proximal tubules and increased at the termination phase of zebrafish kidney regeneration. Notably, this change contrasts with the role of hydrogen peroxide (H2O2), which acts as an accelerator in kidney regeneration. Through experiments with penka mutants and pharmaceutical treatments, we demonstrate that PENK-A inhibits H2O2 production in a dose-dependent manner, suggesting its involvement in regulating the rate and termination of regeneration. Furthermore, H2O2 influences the expression of tcf21, a vital factor in the formation of renal progenitor cell aggregates, by remodeling H3K4me3 in renal cells. Overall, our findings highlight the regulatory role of PENK-A as a brake in kidney regeneration.
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Affiliation(s)
- Chi Liu
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, P.R. China.
| | - Xiaoliang Liu
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, P.R. China
| | - Zhongwei He
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, P.R. China
| | - Jiangping Zhang
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, P.R. China
| | - Xiaoqin Tan
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, P.R. China
| | - Wenmin Yang
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, P.R. China
| | - Yunfeng Zhang
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, P.R. China
| | - Ting Yu
- Department of Respiratory Medicine, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, P.R. China
| | - Shuyi Liao
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, P.R. China
| | - Lu Dai
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, P.R. China
| | - Zhi Xu
- Department of Respiratory Medicine, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, P.R. China
| | - Furong Li
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, P.R. China
| | - Yinghui Huang
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, P.R. China.
| | - Jinghong Zhao
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, P.R. China.
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8
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Chen C, Zuo Y, Hu H, Shao Y, Dong S, Zeng J, Huang L, Liu Z, Shen Q, Liu F, Liao X, Cao Z, Zhong Z, Lu H, Bi Y, Chen J. Cysteamine hydrochloride affects ocular development and triggers associated inflammation in zebrafish. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132175. [PMID: 37517235 DOI: 10.1016/j.jhazmat.2023.132175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/14/2023] [Accepted: 07/26/2023] [Indexed: 08/01/2023]
Abstract
The increasing use of cosmetics has raised widespread concerns regarding their ingredients. Cysteamine hydrochloride (CSH) is a newly identified allergenic component in cosmetics, and therefore its potential toxicity needs further elucidation. Here, we investigated the in vivo toxicity of CSH during ocular development utilizing a zebrafish model. CSH exposure was linked to smaller eyes, increased vasculature of the fundus and decreased vessel diameter in zebrafish larvae. Moreover, CSH exposure accelerated the process of vascular sprouting and enhanced the proliferation of ocular vascular endothelial cells. Diminished behavior in response to visual stimuli and ocular structural damage in zebrafish larvae after CSH treatment were confirmed by analysis of the photo-visual motor response and pathological examination, respectively. Through transcriptional assays, transgenic fluorescence photography and molecular docking analysis, we determined that CSH inhibited Notch receptor transcription, leading to an aberrant proliferation of ocular vascular endothelial cells mediated by Vegf signaling activation. This process disrupted ocular homeostasis, and induced an inflammatory response with neutrophil accumulation, in addition to the generation of high levels of reactive oxygen species, which in turn promoted the occurrence of apoptotic cells in the eye and ultimately impaired ocular structure and visual function during zebrafish development.
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Affiliation(s)
- Chao Chen
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Department of Pediatrics, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China; Department of Medical Genetics, School of Medicine, Tongji University, Shanghai 200092, China; Department of Ophthalmology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China
| | - Yuhua Zuo
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou 325003, China
| | - Hongmei Hu
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Department of Pediatrics, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China; Department of Medical Genetics, School of Medicine, Tongji University, Shanghai 200092, China; Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, Clinical Research Center of Affiliated Hospital of Jinggangshan University, College of Life Sciences, Jinggangshan University, Ji'an 343009, Jiangxi, China
| | - Yuting Shao
- Department of Ophthalmology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China
| | - Si Dong
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, Clinical Research Center of Affiliated Hospital of Jinggangshan University, College of Life Sciences, Jinggangshan University, Ji'an 343009, Jiangxi, China; Department of Internal Medicine and Hematology, Affiliated Hospital of Jinggangshan University, Ji'an 343009, Jiangxi, China
| | - Junquan Zeng
- Department of Internal Medicine and Hematology, Affiliated Hospital of Jinggangshan University, Ji'an 343009, Jiangxi, China
| | - Ling Huang
- Department of Interventional and Vascular Surgery, Affiliated Hospital of Jinggangshan University, Ji'an 343009, Jiangxi, China
| | - Ziyi Liu
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, Clinical Research Center of Affiliated Hospital of Jinggangshan University, College of Life Sciences, Jinggangshan University, Ji'an 343009, Jiangxi, China
| | - Qinyuan Shen
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, Clinical Research Center of Affiliated Hospital of Jinggangshan University, College of Life Sciences, Jinggangshan University, Ji'an 343009, Jiangxi, China
| | - Fasheng Liu
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, Clinical Research Center of Affiliated Hospital of Jinggangshan University, College of Life Sciences, Jinggangshan University, Ji'an 343009, Jiangxi, China
| | - Xinjun Liao
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, Clinical Research Center of Affiliated Hospital of Jinggangshan University, College of Life Sciences, Jinggangshan University, Ji'an 343009, Jiangxi, China
| | - Zigang Cao
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, Clinical Research Center of Affiliated Hospital of Jinggangshan University, College of Life Sciences, Jinggangshan University, Ji'an 343009, Jiangxi, China
| | - Zilin Zhong
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Department of Pediatrics, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China; Department of Medical Genetics, School of Medicine, Tongji University, Shanghai 200092, China
| | - Huiqiang Lu
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, Clinical Research Center of Affiliated Hospital of Jinggangshan University, College of Life Sciences, Jinggangshan University, Ji'an 343009, Jiangxi, China.
| | - Yanlong Bi
- Department of Ophthalmology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China.
| | - Jianjun Chen
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Department of Pediatrics, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China; Department of Medical Genetics, School of Medicine, Tongji University, Shanghai 200092, China.
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9
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Angom RS, Wang Y, Wang E, Dutta S, Mukhopadhyay D. Conditional, Tissue-Specific CRISPR/Cas9 Vector System in Zebrafish Reveals the Role of Nrp1b in Heart Regeneration. Arterioscler Thromb Vasc Biol 2023; 43:1921-1934. [PMID: 37650323 PMCID: PMC10771629 DOI: 10.1161/atvbaha.123.319189] [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: 02/22/2023] [Accepted: 08/04/2023] [Indexed: 09/01/2023]
Abstract
BACKGROUND CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats/clustered regularly interspaced short palindromic repeat-associated 9) technology-mediated genome editing has significantly improved the targeted inactivation of genes in vitro and in vivo in many organisms. Neuropilins play crucial roles in zebrafish heart regeneration, heart failure in mice, and electrical remodeling after myocardial infarction in rats. But the cell-specific functions of nrp1 have not been described before. In this study, we have investigated the role of nrp1 isoforms, including nrp1a and nrp1b, in cardiomyocytes during cardiac injury and regeneration in adult zebrafish hearts. METHODS In this study, we have reported a novel CRISPR-based vector system for conditional tissue-specific gene ablation in zebrafish. Specifically, the cardiac-specific cmlc2 promoter drives Cas9 expression to silence the nrp1 gene in cardiomyocytes in a heat-shock inducible manner. This vector system establishes a unique tool to regulate the gene knockout in both the developmental and adult stages and hence widens the possibility of loss-of-function studies in zebrafish at different stages of development and adulthood. Using this approach, we investigated the role of neuropilin isoforms nrp1a and nrp1b in response to cardiac injury and regeneration in adult zebrafish hearts. RESULTS We observed that both the isoforms (nrp1a and nrp1b) are upregulated after the cryoinjury. Interestingly, the nrp1b knockout significantly delayed heart regeneration and impaired cardiac function in the adult zebrafish after cryoinjury, demonstrated by reduced heart rate, ejection fractions, and fractional shortening. In addition, we show that the knockdown of nrp1b but not nrp1a induces activation of the cardiac remodeling genes in response to cryoinjury. CONCLUSIONS To our knowledge, this study is novel where we have reported a heat-shock-mediated conditional knockdown of nrp1a and nrp1b isoforms using CRISPR/Cas9 technology in the cardiomyocyte in zebrafish and furthermore have identified a crucial role for the nrp1b isoform in zebrafish cardiac remodeling and eventually heart function in response to injury.
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Affiliation(s)
- Ramcharan Singh Angom
- Department of Biochemistry and Molecular Biology, College of Medicine and Science, Mayo Clinic, Jacksonville, FL 32224
| | - Ying Wang
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905
- Department of Biochemistry and Molecular Biology, College of Medicine and Science, Mayo Clinic, Rochester, MN 55905
| | - Enfeng Wang
- Department of Biochemistry and Molecular Biology, College of Medicine and Science, Mayo Clinic, Jacksonville, FL 32224
| | - Shamit Dutta
- Department of Biochemistry and Molecular Biology, College of Medicine and Science, Mayo Clinic, Jacksonville, FL 32224
| | - Debabrata Mukhopadhyay
- Department of Biochemistry and Molecular Biology, College of Medicine and Science, Mayo Clinic, Jacksonville, FL 32224
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10
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Bourceau P, Geier B, Suerdieck V, Bien T, Soltwisch J, Dreisewerd K, Liebeke M. Visualization of metabolites and microbes at high spatial resolution using MALDI mass spectrometry imaging and in situ fluorescence labeling. Nat Protoc 2023; 18:3050-3079. [PMID: 37674095 DOI: 10.1038/s41596-023-00864-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/31/2023] [Indexed: 09/08/2023]
Abstract
Label-free molecular imaging techniques such as matrix-assisted laser desorption ionization mass spectrometry imaging (MALDI-MSI) enable the direct and simultaneous mapping of hundreds of different metabolites in thin sections of biological tissues. However, in host-microbe interactions it remains challenging to localize microbes and to assign metabolites to the host versus members of the microbiome. We therefore developed a correlative imaging approach combining MALDI-MSI with fluorescence in situ hybridization (FISH) on the same section to identify and localize microbial cells. Here, we detail metaFISH as a robust and easy method for assigning the spatial distribution of metabolites to microbiome members based on imaging of nucleic acid probes, down to single-cell resolution. We describe the steps required for tissue preparation, on-tissue hybridization, fluorescence microscopy, data integration into a correlative image dataset, matrix application and MSI data acquisition. Using metaFISH, we map hundreds of metabolites and several microbial species to the micrometer scale on a single tissue section. For example, intra- and extracellular bacteria, host cells and their associated metabolites can be localized in animal tissues, revealing their complex metabolic interactions. We explain how we identify low-abundance bacterial infection sites as regions of interest for high-resolution MSI analysis, guiding the user to a trade-off between metabolite signal intensities and fluorescence signals. MetaFISH is suitable for a broad range of users from environmental microbiologists to clinical scientists. The protocol requires ~2 work days.
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Affiliation(s)
- Patric Bourceau
- Max Planck Institute for Marine Microbiology, Bremen, Germany
- MARUM - Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany
| | - Benedikt Geier
- Max Planck Institute for Marine Microbiology, Bremen, Germany
- Stanford University School of Medicine, Stanford, CA, USA
| | | | - Tanja Bien
- Institute of Hygiene, University of Münster, Münster, Germany
- Bruker Daltonics GmbH & Co. KG, Bremen, Germany
| | - Jens Soltwisch
- Institute of Hygiene, University of Münster, Münster, Germany
| | | | - Manuel Liebeke
- Max Planck Institute for Marine Microbiology, Bremen, Germany.
- Institute of Human Nutrition and Food Sciences, University of Kiel, Kiel, Germany.
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11
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Cai P, Ni R, Lv M, Liu H, Zhao J, He J, Luo L. VEGF signaling governs the initiation of biliary-mediated liver regeneration through the PI3K-mTORC1 axis. Cell Rep 2023; 42:113028. [PMID: 37632748 DOI: 10.1016/j.celrep.2023.113028] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 07/12/2023] [Accepted: 08/10/2023] [Indexed: 08/28/2023] Open
Abstract
Biliary epithelial cells (BECs) are a potential source to repair the damaged liver when hepatocyte proliferation is compromised. Promotion of BEC-to-hepatocyte transdifferentiation could be beneficial to the clinical therapeutics of patients with end-stage liver diseases. However, mechanisms underlying the initiation of BEC transdifferentiation remain largely unknown. Here, we show that upon extreme hepatocyte injury, vegfaa and vegfr2/kdrl are notably induced in hepatic stellate cells and BECs, respectively. Pharmacological and genetic inactivation of vascular endothelial growth factor (VEGF) signaling would disrupt BEC dedifferentiation and proliferation, thus restraining hepatocyte regeneration. Mechanically, VEGF signaling regulates the activation of the PI3K-mammalian target of rapamycin complex 1 (mTORC1) axis, which is essential for BEC-to-hepatocyte transdifferentiation. In mice, VEGF signaling exerts conserved roles in oval cell activation and BEC-to-hepatocyte differentiation. Taken together, this study shows VEGF signaling as an initiator of biliary-mediated liver regeneration through activating the PI3K-mTORC1 axis. Modulation of VEGF signaling in BECs could be a therapeutic approach for patients with end-stage liver diseases.
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Affiliation(s)
- Pengcheng Cai
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Rui Ni
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Mengzhu Lv
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Huijuan Liu
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Jieqiong Zhao
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Jianbo He
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China; School of Life Sciences, Fudan University, Shanghai 200438, China.
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12
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Ma J, Yang Z, Huang Z, Li L, Huang J, Chen J, Ni R, Luo L, He J. Rngtt governs biliary-derived liver regeneration initiation by transcriptional regulation of mTORC1 and Dnmt1 in zebrafish. Hepatology 2023; 78:167-178. [PMID: 36724876 DOI: 10.1097/hep.0000000000000186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 11/23/2022] [Indexed: 02/03/2023]
Abstract
In cases of end-stage liver diseases, the proliferation of existing hepatocytes is compromised, a feature of human chronic liver disease, in which most hepatocytes are dysfunctional. So far, liver transplantation represents the only curative therapeutic solution for advanced liver diseases, and the shortage of donor organs leads to high morbidity and mortality worldwide. The promising treatment is to prompt the biliary epithelial cells (BECs) transdifferentiation. However, the critical factors governing the initiation of BEC-derived liver regeneration are largely unknown. The zebrafish has advantages in large-scale genetic screens to identify the critical factors involved in liver regeneration. Here, we combined N-ethyl-N-nitrosourea screen, positional cloning, transgenic lines, antibody staining, and in situ hybridization methods and identified a liver regeneration defect mutant ( lrd ) using the zebrafish extensive liver injury model. Through positional cloning and genomic sequencing, we mapped the mutation site to rngtt . Loss of rngtt leads to the defects of BEC dedifferentiation, bipotential progenitor cell activation, and cell proliferation in the initiation stage of liver regeneration. The transdifferentiation from BECs to hepatocytes did not occur even at the late stage of liver regeneration. Mechanically, Rngtt transcriptionally regulates the attachment of mRNA cap to mTOR complex 1 (mTORC1) components and dnmt1 to maintain the activation of mTORC1 and DNA methylation in BECs after severe liver injury and prompt BEC to hepatocyte conversion. Furthermore, rptor and dnmt1 mutants displayed the same liver regeneration defects as rngtt mutation. In conclusion, our results suggest Rngtt is a new factor that initiates BEC-derived liver regeneration.
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Affiliation(s)
- Jianlong Ma
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Zhuolin Yang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Zhuofu Huang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Linke Li
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Jingliang Huang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Jingying Chen
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
- University of Chinese Academy of Sciences (Chongqing), Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Beibei, Chongqing, China
| | - Rui Ni
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Jianbo He
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
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13
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Wei X, Tan X, Chen Q, Jiang Y, Wu G, Ma X, Fu J, Li Y, Gang K, Yang Q, Ni R, He J, Luo L. Extensive jejunal injury is repaired by migration and transdifferentiation of ileal enterocytes in zebrafish. Cell Rep 2023; 42:112660. [PMID: 37342912 DOI: 10.1016/j.celrep.2023.112660] [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: 10/10/2022] [Revised: 04/07/2023] [Accepted: 06/01/2023] [Indexed: 06/23/2023] Open
Abstract
A major cause of intestinal failure (IF) is intestinal epithelium necrosis and massive loss of enterocytes, especially in the jejunum, the major intestinal segment in charge of nutrient absorption. However, mechanisms underlying jejunal epithelial regeneration after extensive loss of enterocytes remain elusive. Here, we apply a genetic ablation system to induce extensive damage to jejunal enterocytes in zebrafish, mimicking the jejunal epithelium necrosis that causes IF. In response to injury, proliferation and filopodia/lamellipodia drive anterior migration of the ileal enterocytes into the injured jejunum. The migrated fabp6+ ileal enterocytes transdifferentiate into fabp2+ jejunal enterocytes to fulfill the regeneration, consisting of dedifferentiation to precursor status followed by redifferentiation. The dedifferentiation is activated by the IL1β-NFκB axis, whose agonist promotes regeneration. Extensive jejunal epithelial damage is repaired by the migration and transdifferentiation of ileal enterocytes, revealing an intersegmental migration mechanism of intestinal regeneration and providing potential therapeutic targets for IF caused by jejunal epithelium necrosis.
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Affiliation(s)
- Xiangyong Wei
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Xinmiao Tan
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Qi Chen
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Yan Jiang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Guozhen Wu
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Xue Ma
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Jialong Fu
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Yongyu Li
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Kai Gang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Qifen Yang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Rui Ni
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Jianbo He
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China.
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14
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Sun J, Peterson EA, Chen X, Wang J. hapln1a + cells guide coronary growth during heart morphogenesis and regeneration. Nat Commun 2023; 14:3505. [PMID: 37311876 PMCID: PMC10264374 DOI: 10.1038/s41467-023-39323-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 06/07/2023] [Indexed: 06/15/2023] Open
Abstract
Although several tissues and chemokines orchestrate coronary formation, the guidance cues for coronary growth remain unclear. Here, we profile the juvenile zebrafish epicardium during coronary vascularization and identify hapln1a+ cells enriched with vascular-regulating genes. hapln1a+ cells not only envelop vessels but also form linear structures ahead of coronary sprouts. Live-imaging demonstrates that coronary growth occurs along these pre-formed structures, with depletion of hapln1a+ cells blocking this growth. hapln1a+ cells also pre-lead coronary sprouts during regeneration and hapln1a+ cell loss inhibits revascularization. Further, we identify serpine1 expression in hapln1a+ cells adjacent to coronary sprouts, and serpine1 inhibition blocks vascularization and revascularization. Moreover, we observe the hapln1a substrate, hyaluronan, forming linear structures along and preceding coronary vessels. Depletion of hapln1a+ cells or serpine1 activity inhibition disrupts hyaluronan structure. Our studies reveal that hapln1a+ cells and serpine1 are required for coronary production by establishing a microenvironment to facilitate guided coronary growth.
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Affiliation(s)
- Jisheng Sun
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA, 30322, USA
| | - Elizabeth A Peterson
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA, 30322, USA
| | - Xin Chen
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA, 30322, USA
| | - Jinhu Wang
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA, 30322, USA.
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15
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Jiang M, Wei K, Li M, Lin C, Ke R. Single-molecule RNA in situ detection in clinical FFPE tissue sections by vsmCISH. RNA (NEW YORK, N.Y.) 2023; 29:836-846. [PMID: 36813533 PMCID: PMC10187679 DOI: 10.1261/rna.079482.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 02/05/2023] [Indexed: 05/18/2023]
Abstract
Although RNA plays a vital role in gene expression, it is less used as an in situ biomarker for clinical diagnostics than DNA and protein. This is mainly due to technical challenges caused by the low expression level and easy degradation of RNA molecules. To tackle this issue, methods that are sensitive and specific are needed. Here, we present an RNA single-molecule chromogenic in situ hybridization assay based on DNA probe proximity ligation and rolling circle amplification. When the DNA probes hybridize into close proximity to the RNA molecules, they form a V-shape structure and mediate the circularization of circle probes. Thus, our method was termed vsmCISH. We successfully applied our method to assess HER2 mRNA expression status in invasive breast cancer tissue and investigated the utility of albumin mRNA ISH for differentiating primary from metastatic liver cancer. The promising results on clinical samples indicate that our method has great potential for application in diagnosing diseases using RNA biomarkers.
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Affiliation(s)
- Meng Jiang
- School of Medicine, Huaqiao University, Quanzhou, Fujian, China
- College of Materials Science and Engineering, Huaqiao University, Xiamen, Fujian, China
| | - Kaipeng Wei
- Department of Pathology, The 910 Hospital, Quanzhou, Fujian, China
| | - Meiqing Li
- Department of Pathology, Women and Children's Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Chen Lin
- School of Medicine, Huaqiao University, Quanzhou, Fujian, China
| | - Rongqin Ke
- School of Medicine, Huaqiao University, Quanzhou, Fujian, China
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16
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Liu W, Lin S, Li L, Tai Z, Liu JX. Zebrafish ELL-associated factors Eaf1/2 modulate erythropoiesis via regulating gata1a expression and WNT signaling to facilitate hypoxia tolerance. CELL REGENERATION (LONDON, ENGLAND) 2023; 12:10. [PMID: 37002435 PMCID: PMC10066051 DOI: 10.1186/s13619-022-00154-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 11/28/2022] [Indexed: 04/04/2023]
Abstract
EAF1 and EAF2, the eleven-nineteen lysine-rich leukemia (ELL)-associated factors which can assemble to the super elongation complex (AFF1/4, AF9/ENL, ELL, and P-TEFb), are reported to participate in RNA polymerase II to actively regulate a variety of biological processes, including leukemia and embryogenesis, but whether and how EAF1/2 function in hematopoietic system related hypoxia tolerance during embryogenesis remains unclear. Here, we unveiled that deletion of EAF1/2 (eaf1-/- and eaf2-/-) caused reduction in hypoxia tolerance in zebrafish, leading to reduced erythropoiesis during hematopoietic processes. Meanwhile, eaf1-/- and eaf2-/- mutants showed significant reduction in the expression of key transcriptional regulators scl, lmo2, and gata1a in erythropoiesis at both 24 h post fertilization (hpf) and 72 hpf, with gata1a downregulated while scl and lmo2 upregulated at 14 hpf. Mechanistically, eaf1-/- and eaf2-/- mutants exhibited significant changes in the expression of epigenetic modified histones, with a significant increase in the binding enrichment of modified histone H3K27me3 in gata1a promoter rather than scl and lmo2 promoters. Additionally, eaf1-/- and eaf2-/- mutants exhibited a dynamic expression of canonical WNT/β-catenin signaling during erythropoiesis, with significant reduction in p-β-Catenin level and in the binding enrichment of both scl and lmo2 promoters with the WNT transcriptional factor TCF4 at 24 hpf. These findings demonstrate an important role of Eaf1/2 in erythropoiesis in zebrafish and may have shed some light on regeneration medicine for anemia and related diseases and on molecular basis for fish economic or productive traits, such as growth, disease resistance, hypoxia tolerance, and so on.
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Affiliation(s)
- WenYe Liu
- grid.35155.370000 0004 1790 4137College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, 430070 Wuhan, China
| | - ShuHui Lin
- grid.35155.370000 0004 1790 4137College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, 430070 Wuhan, China
| | - LingYa Li
- grid.35155.370000 0004 1790 4137College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, 430070 Wuhan, China
| | - ZhiPeng Tai
- grid.35155.370000 0004 1790 4137College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, 430070 Wuhan, China
| | - Jing-Xia Liu
- grid.35155.370000 0004 1790 4137College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, 430070 Wuhan, China
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17
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Li Q, Peng F, Yan X, Chen Y, Zhou J, Wu S, Jiang W, Jin X, Liang J, Peng C, Pan X. Inhibition of SLC7A11-GPX4 signal pathway is involved in aconitine-induced ferroptosis in vivo and in vitro. JOURNAL OF ETHNOPHARMACOLOGY 2023; 303:116029. [PMID: 36503029 DOI: 10.1016/j.jep.2022.116029] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/18/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Aconitum species, with a long history of traditional application, were applied to treat rheumatism, arthritis, stroke, and pain in Chinese medical practice. However, misuse of Aconitum species may induce central nervous toxic effects, such as numbness, vomiting, and even coma. Aconitine has been proved to be the main toxic component of Aconitum plants. Neurotoxicity is the main toxic effect of aconitine, while the underlying mechanism of aconitine remains unclear. AIM OF THE STUDY The purpose of the study is to explore the effects and molecular mechanism of ferroptosis caused by aconitine in vivo and in vitro. MATERIALS AND METHODS Six-dpf zebrafish larvae and SH-SY5Y cells were treated with different concentrations of aconitine for 24 h. Inhibitors treatment, e.g. pretreatment with Necrostain-1 (Nec-1) and Z-VZD-FMK for 12 h, or with Ferrostain-1 (Fer-1) for 4 h, were involved in the identification of aconitine-induced ferroptosis. Transient transfection experiment was conducted to explore the effects of SLC7A11 in the process of aconitine-induced ferroptosis. The effects of aconitine on morphological changes, lipid peroxidation, ferrous ion, and ferroptosis were detected by transmission electron microscope, flow cytometry, confocal microscopy, enzyme-linked immunosorbent assay and western blotting. RESULTS In SH-SY5Y cells, morphological changes including shrunken mitochondria, increased mitochondrial membranes density and ruptured mitochondrial membranes were captured in aconitine-treated group. The cell viability and GSH content dose-dependently declined, levels of lipid reactive oxygen species (ROS), malondialdehyde (MDA), and ferrous ion significantly increased after aconitine exposure for 24 h. Ferroptosis inhibitor Fer-1 pretreatment effectively increased cell viability, GSH content, and decreased levels of MDA and lipid peroxidation, suggesting that aconitine induced ferroptosis. In addition, the protein expression of SLC7A11 and GPX4 were improved after Fer-1 preincubation, which indicated that aconitine triggered ferroptosis via the inhibition of SLC7A11 and the inactivation of GPX4. Ferroptotic characteristics, including GSH depletion and lipid peroxidation accumulation, were alleviated via overexpression of SLC7A11 to increase protein expression of GPX4. In zebrafish experiment, GSH depletion, lipid peroxidation accumulation, iron overload, and the decreased protein expression of SLC7A11 and GPX4 were also induced in zebrafish larvae after aconitine exposure. Taken together, aconitine triggered ferroptotic cell death via inhibiting SLC7A11/GPX4 signal pathway in vivo and in vitro. CONCLUSION All results indicated that aconitine triggered ferroptosis of SH-SY5Y cells and zebrafish larvae nerve cells, which involved the inhibition of SLC7A11/GPX4 signal pathway mediated by lipid peroxidation damage and iron overload.
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Affiliation(s)
- Qiuju Li
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fu Peng
- West China School of Pharmacy, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoyu Yan
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yan Chen
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jie Zhou
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shuangyue Wu
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wanyanhan Jiang
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xuhui Jin
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford, OX1 3QT, UK
| | - Jie Liang
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Xiaoqi Pan
- Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
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18
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Li Y, Ning G, Kang B, Zhu J, Wang XY, Wang Q, Cai T. A novel recessive mutation in OXR1 is identified in patient with hearing loss recapitulated by the knockdown zebrafish. Hum Mol Genet 2023; 32:764-772. [PMID: 36130215 PMCID: PMC10365843 DOI: 10.1093/hmg/ddac229] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 08/23/2022] [Accepted: 09/03/2022] [Indexed: 11/14/2022] Open
Abstract
Hereditary hearing loss is a highly genetically heterogeneous disorder. More than 150 genes have been identified to link to human non-syndromic hearing impairment. To identify genetic mutations and underlying molecular mechanisms in affected individuals and families with congenital hearing loss, we recruited a cohort of 389 affected individuals in 354 families for whole-exome sequencing analysis. In this study, we report a novel homozygous missense variant (c.233A > G, p.Lys78Arg) in the OXR1 gene, which was identified in a 4-year-old girl with sensorineural hearing loss. OXR1 encodes Oxidation Resistance 1 and is evolutionarily conserved from zebrafish to human. We found that the ortholog oxr1b gene is expressed in the statoacoustic ganglion (SAG, a sensory ganglion of ear) and posterior lateral line ganglion (pLL) in zebrafish. Knockdown of oxr1b in zebrafish resulted in a significant developmental defect of SAG and pLL. This phenotype can be rescued by co-injection of wild-type human OXR1 mRNAs, but not mutant OXR1 (c.233A > G) mRNAs. OXR1-associated pathway analysis revealed that mutations of TBC1D24, a TLDc-domain-containing homolog gene of OXR1, have previously been identified in patients with hearing loss. Interestingly, mutations or knockout of OXR1 interacting molecules such as ATP6V1B1 and ESR1 are also associated with hearing loss in patients or animal models, hinting an important role of OXR1 and associated partners in cochlear development and hearing function.
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Affiliation(s)
- Yuan Li
- Department of Otorhinolaryngology, China-Japan Friendship Hospital, Beijing 1000292, China
| | - Guozhu Ning
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 5100063, China
- State Key Laboratory of Membrane Biology, Institute of Zoology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 1001014, China
| | - Baoling Kang
- Bioinformatics Section, Angen Gene Medicine Technology, Beijing 1001765, China
| | - Jinwen Zhu
- Bioinformatics Section, Angen Gene Medicine Technology, Beijing 1001765, China
| | | | - Qiang Wang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 5100063, China
| | - Tao Cai
- Experimental Medicine Section, National Institute of Dental and Craniofacial Research, NIH, Bethesda, MD 208927, USA
- Laboratory of Molecular Biology, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD 20892, USA
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19
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Liu X, Yu T, Tan X, Jin D, Yang W, Zhang J, Dai L, He Z, Li D, Zhang Y, Liao S, Zhao J, Zhong TP, Liu C. Renal interstitial cells promote nephron regeneration by secreting prostaglandin E2. eLife 2023; 12:81438. [PMID: 36645741 PMCID: PMC9943066 DOI: 10.7554/elife.81438] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 01/13/2023] [Indexed: 01/17/2023] Open
Abstract
In organ regeneration, progenitor and stem cells reside in their native microenvironment, which provides dynamic physical and chemical cues essential to their survival, proliferation, and differentiation. However, the types of cells that form the native microenvironment for renal progenitor cells (RPCs) have not been clarified. Here, single-cell sequencing of zebrafish kidney reveals fabp10a as a principal marker of renal interstitial cells (RICs), which can be specifically labeled by GFP under the control of fabp10a promoter in the fabp10a:GFP transgenic zebrafish. During nephron regeneration, the formation of nephrons is supported by RICs that form a network to wrap the RPC aggregates. RICs that are in close contact with RPC aggregates express cyclooxygenase 2 (Cox2) and secrete prostaglandin E2 (PGE2). Inhibiting PGE2 production prevents nephrogenesis by reducing the proliferation of RPCs. PGE2 cooperates with Wnt4a to promote nephron maturation by regulating β-catenin stability of RPC aggregates. Overall, these findings indicate that RICs provide a necessary microenvironment for rapid nephrogenesis during nephron regeneration.
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Affiliation(s)
- Xiaoliang Liu
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical UniversityChongqingChina
| | - Ting Yu
- Department of Respiratory Medicine, Xinqiao Hospital, Army Medical UniversityChongqingChina
| | - Xiaoqin Tan
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical UniversityChongqingChina
| | - Daqing Jin
- Shanghai Key Laboratory of Regulatory Biology, Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, East China Normal University, School of Life SciencesShanghaiChina
| | - Wenmin Yang
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical UniversityChongqingChina
| | - Jiangping Zhang
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical UniversityChongqingChina
| | - Lu Dai
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical UniversityChongqingChina
| | - Zhongwei He
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical UniversityChongqingChina
| | - Dongliang Li
- Shanghai Key Laboratory of Regulatory Biology, Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, East China Normal University, School of Life SciencesShanghaiChina
| | - Yunfeng Zhang
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical UniversityChongqingChina
| | - Shuyi Liao
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical UniversityChongqingChina
| | - Jinghong Zhao
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical UniversityChongqingChina
| | - Tao P Zhong
- Shanghai Key Laboratory of Regulatory Biology, Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, East China Normal University, School of Life SciencesShanghaiChina
| | - Chi Liu
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical UniversityChongqingChina
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20
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He J, Zhao F, Chen B, Cui N, Li Z, Qin J, Luo L, Zhao C, Li L. Alterations in immune cell heterogeneities in the brain of aged zebrafish using single-cell resolution. SCIENCE CHINA. LIFE SCIENCES 2023:10.1007/s11427-021-2223-4. [PMID: 36607494 DOI: 10.1007/s11427-021-2223-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/25/2022] [Indexed: 01/07/2023]
Abstract
Immunocytes, including the microglia, are crucial in the neurodegenerative process in old people. However, the understanding of regarding microglia heterogeneity and other involved immunocytes remains elusive. We analyzed 26,456 immunocytes from 12-and 26-month-old zebrafish brains at single-cell resolution. Microglia and T lymphocytes were detected in the brain at both time points. Two types of microglia were annotated, namely, ac+ microglia and xr+ microglia, which were clustered into subsets 1, 2, 3, 4, 5, and subsets 6, 7, 8, 9, respectively. Diversified microglia predominated the adult brains and cooperated with T cells to perform the functions of immune response and neuronal nutrition. We validated the specific microglia markers. The novel transgenic lines, Tg(lgals3bpb:eGFP) and Tg(apoc1:eGFP), were created, which faithfully labeled ac+ microglia and served as valuable labeling tools. However, the microglia population reduced while T cells of six subtypes intriguingly increased to serve as the primary immune cells in aged brains. Unlike in 12-month-old brains, T cells, together with microglia, exhibited a coordinated signature of inflammation in the 26-month-old brains. Our findings revealed the immunocytes atlas in aged zebrafish brains. It implied the involvement of microglia and T cells in the progression of neurodegeneration in aging.
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Affiliation(s)
- Jiangyong He
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China.,Research Center of Stem cells and Aging, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Fangying Zhao
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China
| | - Bingyue Chen
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China
| | - Nianfei Cui
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China
| | - Zhifan Li
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China
| | - Jie Qin
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China
| | - Congjian Zhao
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China.
| | - Li Li
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University, Chongqing, 400715, China. .,Research Center of Stem cells and Aging, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
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21
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The CXCR4-CXCL12 axis promotes T cell reconstitution via efficient hematopoietic immigration. J Genet Genomics 2022; 49:1138-1150. [PMID: 35483564 DOI: 10.1016/j.jgg.2022.04.005] [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: 12/18/2021] [Revised: 04/07/2022] [Accepted: 04/13/2022] [Indexed: 01/20/2023]
Abstract
T cells play a critical role in immunity to protect against pathogens and malignant cells. T cell immunodeficiency is detrimental, especially when T cell perturbation occurs during severe infection, irradiation, chemotherapy, and age-related thymic atrophy. Therefore, strategies that enhance T cell reconstitution provide considerable benefit and warrant intensive investigation. Here, we report the construction of a T cell ablation model in Tg(coro1a:DenNTR) zebrafish via metronidazole administration. The nascent T cells are mainly derived from the hematopoietic cells migrated from the kidney, the functional homolog of bone marrow and the complete recovery time is 6.5 days post-treatment. The cxcr4b gene is upregulated in the responsive hematopoietic cells. Functional interference of CXCR4 via both genetic and chemical manipulations does not greatly affect T lymphopoiesis, but delays T cell regeneration by disrupting hematopoietic migration. In contrast, cxcr4b accelerates the replenishment of hematopoietic cells in the thymus. Consistently, Cxcl12b, a ligand of Cxcr4, is increased in the thymic epithelial cells of the injured animals. Decreased or increased expression of Cxcl12b results in compromised or accelerated T cell recovery, respectively, similar to those observed with Cxcr4b. Taken together, our study reveals a role of CXCR4-CXCL12 signaling in promoting T cell recovery and provides a promising target for the treatment of immunodeficiency due to T cell injury.
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22
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Li L, Chen M, Liu W, Tai P, Liu X, Liu JX. Zebrafish cox17 modulates primitive erythropoiesis via regulation of mitochondrial metabolism to facilitate hypoxia tolerance. FASEB J 2022; 36:e22596. [PMID: 36208295 DOI: 10.1096/fj.202200829r] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 08/31/2022] [Accepted: 09/26/2022] [Indexed: 11/11/2022]
Abstract
Cox17 is required in the assembly of mitochondrial intermembrane space (IMS) and Cu metallization of cytochrome C oxidase (CcO) in mitochondria as well as Cu homeostasis in cells. Cox deficiency is associated with hematopoietic diseases such as tubulopathy and leukodystrophy, but whether and how cox17 functions in hematopoiesis are still unknown. Here, we report the effects of zebrafish cox17 deficiency on primitive erythropoiesis, mitochondrial metabolism, and hypoxia tolerance. Cox17-/- larvae were sensitive to hypoxia stress, with reduced primitive erythropoiesis. Meanwhile, cox17-/- mutants showed a significant reduction in the expression of pivotal transcriptional regulators in erythropoiesis, such as scl, lmo2, and gata1a at 14 h post fertilization (hpf), with expression remaining downregulated for scl but upregulated for lmo2 and gata1a at 24 hpf. Mechanistically, cox17-/- mutants showed impaired mitochondrial metabolism, coupled with a significant decrease in the mitochondrial membrane potential, ATP and SAM content, and the ratio of SAM and SAH. Additionally, disrupting mitochondrial metabolism in wild type (WT) larvae treated with carbonyl cyanide 3-chlorophenylhydrazone (CCCP) could mimic the primitive erythropoiesis defects observed in cox17-/- mutants. Moreover, cox17-/- mutants exhibited significantly downregulated WNT signaling and upregulated ER stress, with a significant reduction of beta-Catenin in gata1a+ cells and of binding enrichment in both scl and lmo2 promoters of the WNT transcriptional factor TCF4. This is the first report on the novel linkage of cox17 deficiency with defective primitive erythropoiesis and reduced hypoxia tolerance. This study has shed light on the potential mechanism by which Cox deficiency, especially cox17 deficiency, induces Cu homeostasis imbalance, leading to hematopoietic diseases.
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Affiliation(s)
- LingYa Li
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, China
| | - MingYue Chen
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, China
| | - WenYe Liu
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, China
| | - PengZhi Tai
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, China
| | - Xingguo Liu
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Science, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Science; Guangzhou Medical University, Guangzhou, China
| | - Jing-Xia Liu
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, China
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23
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Hazra R, Spector DL. Simultaneous visualization of RNA transcripts and proteins in whole-mount mouse preimplantation embryos using single-molecule fluorescence in situ hybridization and immunofluorescence microscopy. Front Cell Dev Biol 2022; 10:986261. [PMID: 36268512 PMCID: PMC9577017 DOI: 10.3389/fcell.2022.986261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
Whole-mount single-molecule RNA fluorescence in situ hybridization (smRNA FISH) in combination with immunofluorescence (IF) offers great potential to study long non-coding RNAs (lncRNAs): their subcellular localization, their interactions with proteins, and their function. Here, we describe a step-by-step, optimized, and robust protocol that allows detection of multiple RNA transcripts and protein molecules in whole-mount preimplantation mouse embryos. Moreover, to simultaneously detect protein and enable RNA probe penetration for the combined IF/smRNA FISH technique, we performed IF before smRNA FISH. We removed the zona pellucida, used Triton X-100 to permeabilize the embryos, and did not use a proteinase digestion step so as to preserve the antigens. In addition, we modified the IF technique by using RNase-free reagents to prevent RNA degradation during the IF procedure. Using this modified sequential IF/smRNA FISH technique, we have simultaneously detected protein, lncRNA, and mRNA in whole-mount preimplantation embryos. This reliable and robust protocol will contribute to the developmental biology and RNA biology fields by providing information regarding 3D expression patterns of RNA transcripts and proteins, shedding light on their biological function.
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24
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Lee H, Jung KB, Kwon O, Son YS, Choi E, Yu WD, Son N, Jeon JH, Jo H, Yang H, Son YR, Yun CS, Cho HS, Kim SK, Kim DS, Park DS, Son MY. Limosilactobacillus reuteri DS0384 promotes intestinal epithelial maturation via the postbiotic effect in human intestinal organoids and infant mice. Gut Microbes 2022; 14:2121580. [PMID: 36130031 PMCID: PMC9519030 DOI: 10.1080/19490976.2022.2121580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Little is known about the modulatory capacity of the microbiota in early intestinal development. We examined various intestinal models that respond to gut microbial metabolites based on human pluripotent stem cell-derived human intestinal organoids (hIOs): physiologically relevant in vitro fetal-like intestine, intestinal stem cell, and intestinal disease models. We found that a newly isolated Limosilactobacillus reuteri strain DS0384 accelerated maturation of the fetal intestine using 3D hIO with immature fetal characteristics. Comparative metabolomic profiling analysis revealed that the secreted metabolite N-carbamyl glutamic acid (NCG) is involved in the beneficial effect of DS0384 cell-free supernatants on the intestinal maturation of hIOs. Experiments in an intestinal stem cell spheroid model and hIO-based intestinal inflamed model revealed that the cell-free supernatant from DS0384 comprising NCG promoted intestinal stem cell proliferation and was important for intestinal protection against cytokine-induced intestinal epithelial injury. The probiotic properties of DS0384 were also evaluated, including acid and bile tolerance and ability to adhere to human intestinal cells. Seven-day oral administration of DS0384 and cell-free supernatant promoted the intestinal development of newborn mice. Moreover, NCG exerted a protective effect on experimental colitis in mice. These results suggest that DS0384 is a useful agent for probiotic applications and therapeutic treatment for disorders of early gut development and for preventing intestinal barrier dysfunction.
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Affiliation(s)
- Hana Lee
- Stem Cell Research Convergence Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Kwang Bo Jung
- Stem Cell Research Convergence Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Ohman Kwon
- Stem Cell Research Convergence Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Ye Seul Son
- Stem Cell Research Convergence Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Eunho Choi
- Stem Cell Research Convergence Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea,KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, Republic of Korea
| | - Won Dong Yu
- Stem Cell Research Convergence Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea,KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, Republic of Korea
| | - Naeun Son
- Stem Cell Research Convergence Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea,KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, Republic of Korea
| | - Jun Hyoung Jeon
- Korean Collection for Type Cultures, Biological Resource Center, KRIBB, Jeongeup, Republic of Korea
| | - Hana Jo
- Korean Collection for Type Cultures, Biological Resource Center, KRIBB, Jeongeup, Republic of Korea
| | - Haneol Yang
- Korean Collection for Type Cultures, Biological Resource Center, KRIBB, Jeongeup, Republic of Korea
| | - Yeong Rak Son
- Korean Collection for Type Cultures, Biological Resource Center, KRIBB, Jeongeup, Republic of Korea
| | - Chan-Seok Yun
- Korean Collection for Type Cultures, Biological Resource Center, KRIBB, Jeongeup, Republic of Korea
| | - Hyun-Soo Cho
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, Republic of Korea,Digital Biotech Innovation Center, KRIBB, Daejeon, Republic of Korea
| | - Sang Kyu Kim
- Laboratory of Efficacy Research, Korea Ginseng Corp., Daejeon, Republic of Korea
| | - Dae-Soo Kim
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, Republic of Korea,Digital Biotech Innovation Center, KRIBB, Daejeon, Republic of Korea
| | - Doo-Sang Park
- Korean Collection for Type Cultures, Biological Resource Center, KRIBB, Jeongeup, Republic of Korea,Doo-Sang Park Korean Collection for Type Cultures, Biological Resource Center, KRIBB, Jeongeup, 56212, Republic of Korea
| | - Mi-Young Son
- Stem Cell Research Convergence Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea,KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, Republic of Korea,CONTACT Mi-Young Son Stem Cell Research Convergence Center, KRIBB, Daejeon, 34141, Republic of Korea
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25
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Jin B, Xie L, Zhan D, Zhou L, Feng Z, He J, Qin J, Zhao C, Luo L, Li L. Nrf2 dictates the neuronal survival and differentiation of embryonic zebrafish harboring compromised alanyl-tRNA synthetase. Development 2022; 149:276217. [DOI: 10.1242/dev.200342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 07/28/2022] [Indexed: 11/20/2022]
Abstract
ABSTRACT
tRNA synthetase deficiency leads to unfolded protein responses in neuronal disorders; however, its function in embryonic neurogenesis remains unclear. This study identified an aars1cq71/cq71 mutant zebrafish allele that showed increased neuronal apoptosis and compromised neurogenesis. aars1 transcripts were highly expressed in primary neural progenitor cells, and their aberration resulted in protein overloading and activated Perk. nfe2l2b, a paralog of mammalian Nfe2l2, which encodes Nrf2, is a pivotal executor of Perk signaling that regulates neuronal phenotypes in aars1cq71/cq71 mutants. Interference of nfe2l2b in nfe2l2bΔ1/Δ1 mutants did not affect global larval development. However, aars1cq71/cq71;nfe2l2bΔ1/Δ1 mutant embryos exhibited increased neuronal cell survival and neurogenesis compared with their aars1cq71/cq71 siblings. nfe2l2b was harnessed by Perk at two levels. Its transcript was regulated by Chop, an implementer of Perk. It was also phosphorylated by Perk. Both pathways synergistically assured the nuclear functions of nfe2l2b to control cell survival by targeting p53. Our study extends the understanding of tRNA synthetase in neurogenesis and implies that Nrf2 is a cue to mitigate neurodegenerative pathogenesis.
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Affiliation(s)
- Binbin Jin
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Liqin Xie
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Dan Zhan
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Luping Zhou
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Zhi Feng
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Jiangyong He
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Jie Qin
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Congjian Zhao
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, School of Biomedical Engineering and informatics, Chongqing University of Posts and Telecommunications 2 , Chongqing 40065 , China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Southwest University 1 , Chongqing 400715 , China
| | - Li Li
- Research Center of Stem Cells and Ageing, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences 3 , Chongqing 400714 , China
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26
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Application of Fluorescence In Situ Hybridization Assisted by Fluorescence Microscope in Detection of Her2 Gene in Breast Cancer Patients. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:3087681. [PMID: 36017025 PMCID: PMC9388259 DOI: 10.1155/2022/3087681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/01/2022] [Accepted: 07/25/2022] [Indexed: 11/18/2022]
Abstract
In order to study the important factors for evaluating the prognosis of breast cancer patients, a fluorescence microscopy-assisted fluorescence in situ hybridization technique was proposed. Compared with other detection techniques, fluorescence in situ hybridization (FISH) technology assisted by a fluorescence microscope has gradually gained favor in related fields due to its advantages of high detection specificity, high sensitivity, and strong experimental period. Combined with the basic overview of fluorescence microscopy and FISH technology, the advantages and application points of FISH technology assisted by fluorescence microscopy in the detection of the Her2 gene in breast cancer patients were studied and discussed. The results show that IHC can be used as the primary screening for HER2 gene status detection; IHC (2+) and IHC (3+) have false positives, which are related to chromosome 17 polysomy, so FISH should be done to confirm the diagnosis.
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27
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Norris SCP, Kawecki NS, Davis AR, Chen KK, Rowat AC. Emulsion-templated microparticles with tunable stiffness and topology: Applications as edible microcarriers for cultured meat. Biomaterials 2022; 287:121669. [PMID: 35853359 PMCID: PMC9834440 DOI: 10.1016/j.biomaterials.2022.121669] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 06/27/2022] [Accepted: 07/02/2022] [Indexed: 01/16/2023]
Abstract
Cultured meat has potential to diversify methods for protein production, but innovations in production efficiency will be required to make cultured meat a feasible protein alternative. Microcarriers provide a strategy to culture sufficient volumes of adherent cells in a bioreactor that are required for meat products. However, cell culture on inedible microcarriers involves extra downstream processing to dissociate cells prior to consumption. Here, we present edible microcarriers that can support the expansion and differentiation of myogenic cells in a single bioreactor system. To fabricate edible microcarriers with a scalable process, we used water-in-oil emulsions as templates for gelatin microparticles. We also developed a novel embossing technique to imprint edible microcarriers with grooved topology in order to test if microcarriers with striated surface texture can promote myoblast proliferation and differentiation in suspension culture. In this proof-of-concept demonstration, we showed that edible microcarriers with both smooth and grooved surface topologies supported the proliferation and differentiation of mouse myogenic C2C12 cells in a suspension culture. The grooved edible microcarriers showed a modest increase in the proliferation and alignment of myogenic cells compared to cells cultured on smooth, spherical microcarriers. During the expansion phase, we also observed the formation of cell-microcarrier aggregates or 'microtissues' for cells cultured on both smooth and grooved microcarriers. Myogenic microtissues cultured with smooth and grooved microcarriers showed similar characteristics in terms of myotube length, myotube volume fraction, and expression of myogenic markers. To establish feasibility of edible microcarriers for cultured meat, we showed that edible microcarriers supported the production of myogenic microtissue from C2C12 or bovine satellite muscle cells, which we harvested by centrifugation into a cookable meat patty that maintained its shape and exhibited browning during cooking. These findings demonstrate the potential of edible microcarriers for the scalable production of cultured meat in a single bioreactor.
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Affiliation(s)
- Sam C P Norris
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - N Stephanie Kawecki
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ashton R Davis
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Kathleen K Chen
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Amy C Rowat
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Broad Stem Cell Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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28
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Chen J, He J, Luo L. Brain vascular damage-induced lymphatic ingrowth is directed by Cxcl12b/Cxcr4a. Development 2022; 149:275687. [PMID: 35694896 DOI: 10.1242/dev.200729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 06/06/2022] [Indexed: 12/15/2022]
Abstract
After ischemic stroke, promotion of vascular regeneration without causing uncontrolled vessel growth appears to be the major challenge for pro-angiogenic therapies. The molecular mechanisms underlying how nascent blood vessels (BVs) are correctly guided into the post-ischemic infarction area remain unknown. Here, using a zebrafish cerebrovascular injury model, we show that chemokine signaling provides crucial guidance cues to determine the growing direction of ingrown lymphatic vessels (iLVs) and, in turn, that of nascent BVs. The chemokine receptor Cxcr4a is transcriptionally activated in the iLVs after injury, whereas its ligand Cxcl12b is expressed in the residual central BVs, the destinations of iLV ingrowth. Mutant and mosaic studies indicate that Cxcl12b/Cxcr4a-mediated chemotaxis is necessary and sufficient to determine the growing direction of iLVs and nascent BVs. This study provides a molecular basis for how the vessel directionality of cerebrovascular regeneration is properly determined, suggesting potential application of Cxcl12b/Cxcr4a in the development of post-ischemic pro-angiogenic therapies.
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Affiliation(s)
- Jingying Chen
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, 400715 Chongqing, China.,University of Chinese Academy of Sciences (Chongqing), Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Beibei, 400714 Chongqing, China
| | - Jianbo He
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, 400715 Chongqing, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, 400715 Chongqing, China.,University of Chinese Academy of Sciences (Chongqing), Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Beibei, 400714 Chongqing, China
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29
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Sun J, Chen Q, Ma J. Notch–Sox9 Axis Mediates Hepatocyte Dedifferentiation in KrasG12V-Induced Zebrafish Hepatocellular Carcinoma. Int J Mol Sci 2022; 23:ijms23094705. [PMID: 35563098 PMCID: PMC9103821 DOI: 10.3390/ijms23094705] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/18/2022] [Accepted: 04/21/2022] [Indexed: 02/06/2023] Open
Abstract
Liver cancer is one of the most prevalent cancers in humans. Hepatocytes normally undergo dedifferentiation after the onset of hepatocellular carcinoma, which in turn facilitates the progression of cancer. Although the process of hepatocellular carcinoma dedifferentiation is of significant research and clinical value, the cellular and molecular mechanisms underlying it are still not fully characterized. We constructed a zebrafish liver cancer model based on overexpression of the oncogene krasG12V to investigate the hepatocyte dedifferentiation in hepatocellular carcinoma. We found that, after hepatocarcinogenesis, hepatocytes dedifferentiated and the Notch signaling pathway was upregulated in this progress. Furthermore, we found that inhibition of the Notch signaling pathway or deficiency of sox9b both prevented hepatocyte dedifferentiation following hepatocellular carcinoma induction, reducing cancer metastasis and improving survival. In conclusion, we found that hepatocytes undergo dedifferentiation after hepatocarcinogenesis, a process that requires Notch signaling and likewise the activation of Sox9.
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30
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Liu C, Li R, Li Y, Lin X, Zhao K, Liu Q, Wang S, Yang X, Shi X, Ma Y, Pei C, Wang H, Bao W, Hui J, Yang T, Xu Z, Lai T, Berberoglu MA, Sahu SK, Esteban MA, Ma K, Fan G, Li Y, Liu S, Chen A, Xu X, Dong Z, Liu L. Spatiotemporal mapping of gene expression landscapes and developmental trajectories during zebrafish embryogenesis. Dev Cell 2022; 57:1284-1298.e5. [PMID: 35512701 DOI: 10.1016/j.devcel.2022.04.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 02/06/2022] [Accepted: 04/05/2022] [Indexed: 01/01/2023]
Abstract
A major challenge in understanding vertebrate embryogenesis is the lack of topographical transcriptomic information that can help correlate microenvironmental cues within the hierarchy of cell-fate decisions. Here, we employed Stereo-seq to profile 91 zebrafish embryo sections covering six critical time points during the first 24 h of development, obtaining a total of 152,977 spots at a resolution of 10 × 10 × 15 μm3 (close to cellular size) with spatial coordinates. Meanwhile, we identified spatial modules and co-varying genes for specific tissue organizations. By performing the integrated analysis of the Stereo-seq and scRNA-seq data from each time point, we reconstructed the spatially resolved developmental trajectories of cell-fate transitions and molecular changes during zebrafish embryogenesis. We further investigated the spatial distribution of ligand-receptor pairs and identified potentially important interactions during zebrafish embryo development. Our study constitutes a fundamental reference for further studies aiming to understand vertebrate development.
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Affiliation(s)
- Chang Liu
- BGI-Shenzhen, Shenzhen 518083, China; Shenzhen Key Laboratory of Single-Cell Omics, Shenzhen 518083, China
| | - Rui Li
- BGI-Shenzhen, Shenzhen 518083, China; Shenzhen Key Laboratory of Single-Cell Omics, Shenzhen 518083, China
| | - Young Li
- BGI-Shenzhen, Shenzhen 518083, China; Shenzhen Key Laboratory of Single-Cell Omics, Shenzhen 518083, China
| | - Xiumei Lin
- BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China; Shenzhen Key Laboratory of Single-Cell Omics, Shenzhen 518083, China
| | - Kaichen Zhao
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Qun Liu
- BGI-Shenzhen, Shenzhen 518083, China; BGI-Qingdao, BGI-Shenzhen, Qingdao 266555, China
| | - Shuowen Wang
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Brain Research Institute, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Xueqian Yang
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xuyang Shi
- BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China; Shenzhen Key Laboratory of Single-Cell Omics, Shenzhen 518083, China
| | - Yuting Ma
- BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chenyu Pei
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Hui Wang
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Wendai Bao
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | | | - Tao Yang
- China National GeneBank, Shenzhen, Guangdong 518120, China
| | - Zhicheng Xu
- China National GeneBank, Shenzhen, Guangdong 518120, China
| | - Tingting Lai
- China National GeneBank, Shenzhen, Guangdong 518120, China
| | - Michael Arman Berberoglu
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | | | - Miguel A Esteban
- BGI-Shenzhen, Shenzhen 518083, China; Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China; CAS Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Guangzhou 510530, China; Institute of Stem Cells and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | | | - Guangyi Fan
- BGI-Shenzhen, Shenzhen 518083, China; BGI-Qingdao, BGI-Shenzhen, Qingdao 266555, China
| | | | - Shiping Liu
- BGI-Shenzhen, Shenzhen 518083, China; Shenzhen Key Laboratory of Single-Cell Omics, Shenzhen 518083, China
| | - Ao Chen
- BGI-Shenzhen, Shenzhen 518083, China; Department of Biology, University of Copenhagen, Copenhagen 2200, Denmark
| | - Xun Xu
- BGI-Shenzhen, Shenzhen 518083, China; Guangdong Provincial Key Laboratory of Genome Read and Write, Shenzhen 518120, China.
| | - Zhiqiang Dong
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Brain Research Institute, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, China.
| | - Longqi Liu
- BGI-Shenzhen, Shenzhen 518083, China; Shenzhen Key Laboratory of Single-Cell Omics, Shenzhen 518083, China.
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31
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Tel2 regulates redifferentiation of bipotential progenitor cells via Hhex during zebrafish liver regeneration. Cell Rep 2022; 39:110596. [PMID: 35385752 DOI: 10.1016/j.celrep.2022.110596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/27/2022] [Accepted: 03/09/2022] [Indexed: 02/07/2023] Open
Abstract
Upon extensive hepatocyte loss or impaired hepatocyte proliferation, liver regeneration occurs via biliary epithelial cell (BEC) transdifferentiation, which includes dedifferentiation of BECs into bipotential progenitor cells (BP-PCs) and then redifferentiation of BP-PCs to nascent hepatocytes and BECs. This BEC-driven liver regeneration involves reactivation of hepatoblast markers, but the underpinning mechanisms and their effects on liver regeneration remain largely unknown. Using a zebrafish extensive hepatocyte ablation model, we perform an N-ethyl-N-nitrosourea (ENU) forward genetic screen and identify a liver regeneration mutant, liver logan (lvl), in which the telomere maintenance 2 (tel2) gene is mutated. During liver regeneration, the tel2 mutation specifically inhibits transcriptional activation of a hepatoblast marker, hematopoietically expressed homeobox (hhex), in BEC-derived cells, which blocks BP-PC redifferentiation. Mechanistic studies show that Tel2 associates with the hhex promoter region and promotes hhex transcription. Our results reveal roles of Tel2 in the BP-PC redifferentiation process of liver regeneration by activating hhex.
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32
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Ikeda T, Inamori K, Kawanishi T, Takeda H. Reemployment of Kupffer's vesicle cells into axial and paraxial mesoderm via transdifferentiation. Dev Growth Differ 2022; 64:163-177. [PMID: 35129208 DOI: 10.1111/dgd.12774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/17/2022] [Accepted: 01/25/2022] [Indexed: 01/25/2023]
Abstract
Kupffer's vesicle (KV) in the teleost embryo is a fluid-filled vesicle surrounded by a layer of epithelial cells with rotating primary cilia. KV transiently acts as the left-right organizer and degenerates after the establishment of left-right asymmetric gene expression. Previous labelling experiments in zebrafish embryos indicated that descendants of KV-epithelial cells are incorporated into mesodermal tissues after the collapse of KV. However, the overall picture of their differentiation potency had been unclear due to the lack of suitable genetic tools and molecular analyses. In the present study, we established a novel zebrafish transgenic line with a promoter of dand5, in which all KV-epithelial cells and their descendants are specifically labelled until the larval stage. We found that KV-epithelial cells undergo epithelial-mesenchymal transition upon KV collapse and infiltrate into adjacent mesodermal progenitors, the presomitic mesoderm and chordoneural hinge. Once incorporated, the descendants of KV-epithelial cells expressed distinct mesodermal differentiation markers and contributed to the mature populations such as the axial muscles and notochordal sheath through normal developmental process. These results indicate that differentiated KV-epithelial cells possess unique plasticity in that they are reemployed into mesodermal lineages through transdifferentiation after they complete their initial role in KV.
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Affiliation(s)
- Takafumi Ikeda
- Laboratory of Embryology, Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Kiichi Inamori
- Laboratory of Embryology, Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Toru Kawanishi
- Laboratory of Embryology, Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Hiroyuki Takeda
- Laboratory of Embryology, Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
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33
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DNA methylation maintenance at the p53 locus initiates biliary-mediated liver regeneration. NPJ Regen Med 2022; 7:21. [PMID: 35351894 PMCID: PMC8964678 DOI: 10.1038/s41536-022-00217-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 03/01/2022] [Indexed: 12/13/2022] Open
Abstract
In cases of extensive liver injury, biliary epithelial cells (BECs) dedifferentiate into bipotential progenitor cells (BPPCs), then redifferentiate into hepatocytes and BECs to accomplish liver regeneration. Whether epigenetic regulations, particularly DNA methylation maintenance enzymes, play a role in this biliary-mediated liver regeneration remains unknown. Here we show that in response to extensive hepatocyte damages, expression of dnmt1 is upregulated in BECs to methylate DNA at the p53 locus, which represses p53 transcription, and in turn, derepresses mTORC1 signaling to activate BEC dedifferentiation. After BEC dedifferentiation and BPPC formation, DNA methylation at the p53 locus maintains in BPPCs to continue blocking p53 transcription, which derepresses Bmp signaling to induce BPPC redifferentiation. Thus, this study reveals promotive roles and mechanisms of DNA methylation at the p53 locus in both dedifferentiation and redifferentiation stages of biliary-mediated liver regeneration, implicating DNA methylation and p53 as potential targets to stimulate regeneration after extensive liver injury.
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34
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Mao D, Zheng M, Li W, Xu Y, Wang C, Qian Q, Li S, Chen G, Zhu X, Mi X. Cubic DNA nanocage-based three-dimensional molecular beacon for accurate detection of exosomal miRNAs in confined spaces. Biosens Bioelectron 2022; 204:114077. [DOI: 10.1016/j.bios.2022.114077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/20/2022] [Accepted: 02/03/2022] [Indexed: 12/24/2022]
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35
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Huang E, Huang H, Wu L, Li B, He Z, Zhang J. Establishment of a Zebrafish Xenograft Model for in Vivo Investigation of Nasopharyngeal Carcinoma. Cell Transplant 2022; 31:9636897221116085. [PMID: 36062473 PMCID: PMC9449506 DOI: 10.1177/09636897221116085] [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] [Indexed: 12/24/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a unique malignant tumor of the head
and neck. Despite higher survival rates by the combination of
radiotherapy and chemotherapy, the recurrence or metastasis of NPC
still occurs at about 10%. Therefore, there is urgent demand to
develop more effective in vivo models for preclinical
trials to investigate the mechanisms of NPC development and
progression and to explore better treatment approaches. In this study,
we transplanted human NPC CNE1 cells into zebrafish embryos to
establish a xenograft model of NPC, where the proliferation and
invasion behaviors of NPC cells were investigated in
vivo. Combining in vitro and
in vivo analyses, we found that activating
transcription factor 7 (ATF7) was involved in the occurrence and
development of NPC regulated by peptidyl-prolyl
cis-trans isomerase
NIMA-interacting 1 (Pin1). The zebrafish NPC xenograft model
established here thereby provides an in vivo tool for
exploring the occurrence and development of NPC, which may help to
identify new tumor markers and develop new therapeutic strategies for
the treatment of NPC.
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Affiliation(s)
- Enyu Huang
- Affiliated Hospital of Guangdong Medical University & Key Laboratory of Zebrafish Model for Development and Disease of Guangdong Medical University, Zhanjiang, China.,China-American Cancer Research Institute, Guangdong Medical University, Dongguan, China
| | - Haofeng Huang
- Affiliated Hospital of Guangdong Medical University & Key Laboratory of Zebrafish Model for Development and Disease of Guangdong Medical University, Zhanjiang, China
| | - Longji Wu
- China-American Cancer Research Institute, Guangdong Medical University, Dongguan, China
| | - Binbin Li
- China-American Cancer Research Institute, Guangdong Medical University, Dongguan, China
| | - Zhiwei He
- China-American Cancer Research Institute, Guangdong Medical University, Dongguan, China
| | - Jingjing Zhang
- Affiliated Hospital of Guangdong Medical University & Key Laboratory of Zebrafish Model for Development and Disease of Guangdong Medical University, Zhanjiang, China.,The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, China
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36
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Cai P, Mao X, Zhao J, Nie L, Jiang Y, Yang Q, Ni R, He J, Luo L. Farnesoid X Receptor Is Required for the Redifferentiation of Bipotential Progenitor Cells During Biliary-Mediated Zebrafish Liver Regeneration. Hepatology 2021; 74:3345-3361. [PMID: 34320243 DOI: 10.1002/hep.32076] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 06/23/2021] [Accepted: 07/07/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND AIMS Liver regeneration after extreme hepatocyte loss occurs through transdifferentiation of biliary epithelial cells (BECs), which includes dedifferentiation of BECs into bipotential progenitor cells (BPPCs) and subsequent redifferentiation into nascent hepatocytes and BECs. Although multiple molecules and signaling pathways have been implicated to play roles in the BEC-mediated liver regeneration, mechanisms underlying the dedifferentiation-redifferentiation transition and the early phase of BPPC redifferentiation that is pivotal for both hepatocyte and BEC directions remain largely unknown. APPROACH AND RESULTS The zebrafish extreme liver damage model, genetic mutation, pharmacological inhibition, transgenic lines, whole-mount and fluorescent in situ hybridizations and antibody staining, single-cell RNA sequencing, quantitative real-time PCR, and heat shock-inducible overexpression were used to investigate roles and mechanisms of farnesoid X receptor (FXR; encoded by nuclear receptor subfamily 1, group H, member 4 [nr1h4]) in regulating BPPC redifferentiation. The nr1h4 expression was significantly up-regulated in response to extreme liver injury. Genetic mutation or pharmacological inhibition of FXR was ineffective to BEC-to-BPPC dedifferentiation but blocked the redifferentiation of BPPCs to both hepatocytes and BECs, leading to accumulation of undifferentiated or less-differentiated BPPCs. Mechanistically, induced overexpression of extracellular signal-related kinase (ERK) 1 (encoded by mitogen-activated protein kinase 3) rescued the defective BPPC-to-hepatocyte redifferentiation in the nr1h4 mutant, and ERK1 itself was necessary for the BPPC-to-hepatocyte redifferentiation. The Notch activities in the regenerating liver of nr1h4 mutant attenuated, and induced Notch activation rescued the defective BPPC-to-BEC redifferentiation in the nr1h4 mutant. CONCLUSIONS FXR regulates BPPC-to-hepatocyte and BPPC-to-BEC redifferentiations through ERK1 and Notch, respectively. Given recent applications of FXR agonists in the clinical trials for liver diseases, this study proposes potential underpinning mechanisms by characterizing roles of FXR in the stimulation of dedifferentiation-redifferentiation transition and BPPC redifferentiation.
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Affiliation(s)
- Pengcheng Cai
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Xiaoyu Mao
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Jieqiong Zhao
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Li Nie
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Yan Jiang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Qifen Yang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Rui Ni
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Jianbo He
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei, Chongqing, China
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37
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Rapid orderly migration of neutrophils after traumatic brain injury depends on MMP9/13. Biochem Biophys Res Commun 2021; 579:161-167. [PMID: 34601201 DOI: 10.1016/j.bbrc.2021.09.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 09/19/2021] [Indexed: 12/20/2022]
Abstract
Macrophages and granulocytes play an important role in various injuries and post-traumatic repair. Due to the limited number of neutrophils in the brain, their role in traumatic brain injury has rarely been mentioned. Here, neutrophils were found to take over the role of macrophages after brain injury in the absence of macrophages. Neutrophils have the characteristics of long residence time and number advantage to actively remove the apoptotic debris. The number of neutrophils recruited was effectively reduced by inhibiting IL-1β. Interestingly, neutrophils migrated regularly and rapidly to the wound during the early stages of brain injury through three paths. They first infiltrated the wound mainly through blood circulation around the eyes, then became unscrupulous and began to move directly across the brain. In addition, MMP9 and MMP13 were found to be related to the migration of neutrophils, and inhibition of MMP could significantly inhibit the number and speed of neutrophils' migration. Our study showed that neutrophils rely on MMP9 and MMP13 for a rapid and orderly response to brain injury to maintain central nervous system stability in the absence or decrease of macrophages.
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38
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Liu Y, Zhao Y, Wu R, Chen Y, Chen W, Liu Y, Luo Y, Huang C, Zeng B, Liao X, Guo G, Wang Y, Wang X. mRNA m5C controls adipogenesis by promoting CDKN1A mRNA export and translation. RNA Biol 2021; 18:711-721. [PMID: 34570675 DOI: 10.1080/15476286.2021.1980694] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
5-Methylcytosine (m5C) is a type of RNA modification that exists in tRNAs and rRNAs and was recently found in mRNA. Although mRNA m5C modification has been reported to regulate diverse biological process, its function in adipogenesis remains unknown. Here, we demonstrated that knockdown of NOL1/NOP2/Sun domain family member 2 (NSUN2), a m5C methyltransferase, increased lipid accumulation of 3T3-L1 preadipocytes through accelerating cell cycle progression during mitotic clonal expansion (MCE) at the early stage of adipogenesis. Mechanistically, we proved that NSUN2 directly targeted cyclin-dependent kinase inhibitor 1A (CDKN1A) mRNA, a key inhibitory regulator of cell cycle progression, and upregulated its protein expression in an m5C-dependent manner. Further study identified that CDKN1A was the target of Aly/REF export factor (ALYREF), a reader of m5C modified mRNA. Upon NSUN2 deficiency, the recognition of CDKN1A mRNA by ALYREF was suppressed, resulting in the decrease of CDKN1A mRNA shuttling from nucleus to cytoplasm. Thereby, the translation of CDKN1A was reduced, leading to the acceleration of cell cycle and the promotion of adipogenesis. Together, these findings unveiled an important function and mechanism of the m5C modification on adipogenesis by controlling cell cycle progression, providing a potential therapeutic target to prevent obesity.
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Affiliation(s)
- Youhua Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Animal Nutrition & Feed Sciences, Ministry of Agriculture, China.,Laboratory of Molecular Animal Nutrition, Zhejiang University, Ministry of Education, Hangzhou, Zhejiang, China
| | - Yuanling Zhao
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Animal Nutrition & Feed Sciences, Ministry of Agriculture, China.,Laboratory of Molecular Animal Nutrition, Zhejiang University, Ministry of Education, Hangzhou, Zhejiang, China
| | - Ruifan Wu
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Animal Nutrition & Feed Sciences, Ministry of Agriculture, China.,Laboratory of Molecular Animal Nutrition, Zhejiang University, Ministry of Education, Hangzhou, Zhejiang, China
| | - Yushi Chen
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Animal Nutrition & Feed Sciences, Ministry of Agriculture, China.,Laboratory of Molecular Animal Nutrition, Zhejiang University, Ministry of Education, Hangzhou, Zhejiang, China
| | - Wei Chen
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Animal Nutrition & Feed Sciences, Ministry of Agriculture, China.,Laboratory of Molecular Animal Nutrition, Zhejiang University, Ministry of Education, Hangzhou, Zhejiang, China
| | - Yuxi Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Animal Nutrition & Feed Sciences, Ministry of Agriculture, China.,Laboratory of Molecular Animal Nutrition, Zhejiang University, Ministry of Education, Hangzhou, Zhejiang, China
| | - Yaojun Luo
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Animal Nutrition & Feed Sciences, Ministry of Agriculture, China.,Laboratory of Molecular Animal Nutrition, Zhejiang University, Ministry of Education, Hangzhou, Zhejiang, China
| | - Chaoqun Huang
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Animal Nutrition & Feed Sciences, Ministry of Agriculture, China.,Laboratory of Molecular Animal Nutrition, Zhejiang University, Ministry of Education, Hangzhou, Zhejiang, China
| | - Botao Zeng
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Animal Nutrition & Feed Sciences, Ministry of Agriculture, China.,Laboratory of Molecular Animal Nutrition, Zhejiang University, Ministry of Education, Hangzhou, Zhejiang, China
| | - Xing Liao
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Animal Nutrition & Feed Sciences, Ministry of Agriculture, China.,Laboratory of Molecular Animal Nutrition, Zhejiang University, Ministry of Education, Hangzhou, Zhejiang, China
| | - Guanqun Guo
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Animal Nutrition & Feed Sciences, Ministry of Agriculture, China.,Laboratory of Molecular Animal Nutrition, Zhejiang University, Ministry of Education, Hangzhou, Zhejiang, China
| | - Yizhen Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Animal Nutrition & Feed Sciences, Ministry of Agriculture, China.,Laboratory of Molecular Animal Nutrition, Zhejiang University, Ministry of Education, Hangzhou, Zhejiang, China
| | - Xinxia Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Animal Nutrition & Feed Sciences, Ministry of Agriculture, China.,Laboratory of Molecular Animal Nutrition, Zhejiang University, Ministry of Education, Hangzhou, Zhejiang, China
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Huang L, Liu J, Li W, Liu F, Wan M, Chen G, Su M, Guo C, Han F, Xiong G, Liao X, Lu H, Cao Z. Lenvatinib exposure induces hepatotoxicity in zebrafish via inhibiting Wnt signaling. Toxicology 2021; 462:152951. [PMID: 34534561 DOI: 10.1016/j.tox.2021.152951] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 09/04/2021] [Accepted: 09/11/2021] [Indexed: 11/25/2022]
Abstract
Lenvatinib is a multi-kinase inhibitor for widely treating thyroid cancer. However, little studies have been done about it or its toxicity on embryonic development of vertebrate. In this study, we used zebrafish to assess the effect of lenvatinib on early embryonic development. Exposure of zebrafish embryos to 58, 117, 176 nM lenvatinib induced abnormal embryonic development, such as decreased heart rate, pericardial edema, delayed yolk absorption, and bladder atrophy. Lenvatinib exposure reduced liver area and down-regulated liver developmental related genes. The proliferation of hepatocytes and the expression of apoptosis-related genes were significantly reduced.by Lenvatinib. Furthermore, the imbalance of liver metabolism and abnormal liver tissue structure were observed in adult zebrafish after Lenvatinib exposure. Oxidative stress was up-regulated by lenvatinib and astaxanthin partially rescued hepatic developmental defects via downregulating oxidative stress. After lenvatinib exposure, Wnt signaling was down-regulated, and activation of Wnt signaling partially rescued hepatic developmental defects. Therefore, these results suggested that lenvatinib might induce zebrafish hepatotoxicity by down-regulating Wnt signaling related genes and inducing oxidative stress. This study provides a reference for the potential hepatotoxicity of lenvatinib during embryonic development and raises health concern about the potential harm of exposure to lenvatinib for foetuses.
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Affiliation(s)
- Ling Huang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen, China
| | - Jieping Liu
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen, China
| | - Wanbo Li
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen, China
| | - Fasheng Liu
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China
| | - Mengqi Wan
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China
| | - Guilan Chen
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China
| | - Meile Su
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China
| | - Chen Guo
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China
| | - Fang Han
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen, China
| | - Guanghua Xiong
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China
| | - Xinjun Liao
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China
| | - Huiqiang Lu
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China
| | - Zigang Cao
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Jinggangshan University, Ji'an, 343009, Jiangxi, China.
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40
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Chen J, Li X, Ni R, Chen Q, Yang Q, He J, Luo L. Acute brain vascular regeneration occurs via lymphatic transdifferentiation. Dev Cell 2021; 56:3115-3127.e6. [PMID: 34562378 DOI: 10.1016/j.devcel.2021.09.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 07/08/2021] [Accepted: 09/02/2021] [Indexed: 12/12/2022]
Abstract
Acute ischemic stroke damages the regional brain blood vessel (BV) network. Acute recovery of basic blood flows, which is carried out by the earliest regenerated BVs, are critical to improve clinical outcomes and minimize lethality. Although the late-regenerated BVs form via growing along the meninge-derived ingrown lymphatic vessels (iLVs), mechanisms underlying the early, acute BV regeneration remain elusive. Using zebrafish cerebrovascular injury models, we show that the earliest regenerated BVs come from lymphatic transdifferentiation, a hitherto unappreciated process in vertebrates. Mechanistically, the LV-to-BV transdifferentiation occurs exclusively in the stand-alone iLVs through Notch activation. In the track iLVs adhered by late-regenerated BVs, transdifferentiation never occurs because the BV-expressing EphrinB2a paracellularly activates the iLV-expressing EphB4a to inhibit Notch activation. Suppression of LV-to-BV transdifferentiation blocks acute BV regeneration and becomes lethal. These results demonstrate that acute BV regeneration occurs via lymphatic transdifferentiation, suggesting this process and key regulatory molecules EphrinB2a/EphB4a/Notch as new postischemic therapeutic targets.
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Affiliation(s)
- Jingying Chen
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei 400715, Chongqing, China; University of Chinese Academy of Sciences (Chongqing), Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Beibei 400714, Chongqing, China
| | - Xiuhua Li
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei 400715, Chongqing, China
| | - Rui Ni
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei 400715, Chongqing, China
| | - Qi Chen
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei 400715, Chongqing, China
| | - Qifen Yang
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei 400715, Chongqing, China
| | - Jianbo He
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei 400715, Chongqing, China
| | - Lingfei Luo
- Institute of Developmental Biology and Regenerative Medicine, Southwest University, Beibei 400715, Chongqing, China; University of Chinese Academy of Sciences (Chongqing), Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Beibei 400714, Chongqing, China.
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41
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Gu Y, Huang LJ, Zhao W, Zhang TT, Cui MR, Yang XJ, Zhao XL, Chen HY, Xu JJ. Living-Cell MicroRNA Imaging with Self-Assembling Fragments of Fluorescent Protein-Mimic RNA Aptamer. ACS Sens 2021; 6:2339-2347. [PMID: 34028262 DOI: 10.1021/acssensors.1c00453] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
As the cellular roles of RNA abundance continue to increase, there is an urgent need for the corresponding tools to elucidate native RNA functions and dynamics, especially those of short, low-abundance RNAs in live cells. Fluorescent RNA aptamers provide a useful strategy to create the RNA tag and biosensor devices. Corn, which binds with 3,5-difluoro-4-hydroxybenzylidene-imidazolinone-2-oxime (DFHO), is a good candidate for the RNA tag because of its enhanced photostability and red-shifted spectrum. Herein, we report for the first time the utilization of Corn as a split aptamer system, combined with RNA-initiated fluorescence complementation (RIFC), for monitoring RNA self-assembly and sensing microRNA. In this platform, the 28-nt Corn was divided into two nonfunctional halves (named probe I and probe II), and an additional target RNA recognition and stem part was introduced in each probe. The target RNA can trigger the self-assembly reconstitution of the Corn's G-quadruplex scaffold for DFHO binding and turn-on fluorescence. These probes can be transfected stably into mammalian cells and deliver the light-up fluorescent response to microRNA-21 (miR-21). Significantly, the probes have good photostability, with minimal fluorescence loss after continuous irradiation, and can be used for imaging of miR-21 in living mammalian cells. The proposed method is universal and could be applied to the sensing of other tumor-associated RNAs, including messenger RNA and noncoding RNA, as well as for monitoring RNA/RNA interactions. The Corn-based splitting aptamers show promising potential in the real-time visualization and mechanistic analysis of nucleic acids.
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Affiliation(s)
- Yu Gu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Institute for Materials Science and Engineering, School of Materials Sciences and Engineering, Suzhou University of Science and Technology, Suzhou 215011, China
| | - Li-Juan Huang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Ting-Ting Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Mei-Rong Cui
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xue-Jiao Yang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xue-Li Zhao
- College of Chemistry and Molecular Engineering, Zheng-Zhou University, Zhengzhou 450001, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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Zhang T, Xu Z, Wen L, Lei D, Li S, Wang J, Huang J, Wang N, Durkan C, Liao X, Wang G. Cadmium-induced dysfunction of the blood-brain barrier depends on ROS-mediated inhibition of PTPase activity in zebrafish. JOURNAL OF HAZARDOUS MATERIALS 2021; 412:125198. [PMID: 33550130 DOI: 10.1016/j.jhazmat.2021.125198] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/04/2021] [Accepted: 01/19/2021] [Indexed: 06/12/2023]
Abstract
Increasing evidence has demonstrated that cadmium accumulation in the blood increases the risk of neurological diseases. However, how cadmium breaks through the blood-brain barrier (BBB) and is transferred from the blood circulation into the central nervous system is still unclear. In this study, we examined the toxic effect of cadmium chloride (CdCl2) on the development and function of BBB in zebrafish. CdCl2 exposure induced cerebral hemorrhage, increased BBB permeability and promoted abnormal vascular formation by promoting VEGF production in zebrafish brain. Furthermore, in vivo and in vitro experiments showed that CdCl2 altered cell-cell junctional morphology by disrupting the proper localization of VE-cadherin and ZO-1. The potential mechanism involved in the inhibition of protein tyrosine phosphatase (PTPase) mediated by cadmium-induced ROS was confirmed with diphenylene iodonium (DPI), a ROS production inhibitor. Together, these data indicate that BBB is a critical target of cadmium toxicity and provide in vivo etiological evidence of cadmium-induced neurovascular disease in a zebrafish BBB model.
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Affiliation(s)
- Tao Zhang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China; Chongqing Key Laboratory of Nano/Micro Composite Material and Device, School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China.
| | - Zichen Xu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China.
| | - Lin Wen
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China.
| | - Daoxi Lei
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China.
| | - Shuyu Li
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China.
| | - Jinxuan Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China.
| | - Jinxia Huang
- Chongqing Key Laboratory of Nano/Micro Composite Material and Device, School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China.
| | - Nan Wang
- The Nanoscience Centre, University of Cambridge, 11 JJ Thomson Avenue, Cambridge CB30FF, UK.
| | - Colm Durkan
- The Nanoscience Centre, University of Cambridge, 11 JJ Thomson Avenue, Cambridge CB30FF, UK.
| | - Xiaoling Liao
- Chongqing Key Laboratory of Nano/Micro Composite Material and Device, School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China.
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China.
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43
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A single-cell-resolution fate map of endoderm reveals demarcation of pancreatic progenitors by cell cycle. Proc Natl Acad Sci U S A 2021; 118:2025793118. [PMID: 34161274 DOI: 10.1073/pnas.2025793118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A progenitor cell could generate a certain type or multiple types of descendant cells during embryonic development. To make all the descendant cell types and developmental trajectories of every single progenitor cell clear remains an ultimate goal in developmental biology. Characterizations of descendant cells produced by each uncommitted progenitor for a full germ layer represent a big step toward the goal. Here, we focus on early foregut endoderm, which generates foregut digestive organs, including the pancreas, liver, foregut, and ductal system, through distinct lineages. Using unbiased single-cell labeling techniques, we label every individual zebrafish foregut endodermal progenitor cell out of 216 cells to visibly trace the distribution and number of their descendant cells. Hence, single-cell-resolution fate and proliferation maps of early foregut endoderm are established, in which progenitor regions of each foregut digestive organ are precisely demarcated. The maps indicate that the pancreatic endocrine progenitors are featured by a cell cycle state with a long G1 phase. Manipulating durations of the G1 phase modulates pancreatic progenitor populations. This study illustrates foregut endodermal progenitor cell fate at single-cell resolution, precisely demarcates different progenitor populations, and sheds light on mechanistic insights into pancreatic fate determination.
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44
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Rong J, He Y, Tang J, Qiao R, Lin S. "Fishing" nano-bio interactions at the key biological barriers. NANOSCALE 2021; 13:5954-5964. [PMID: 33734277 DOI: 10.1039/d1nr00328c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Understanding nano-bio interactions is pivotal to the safe implementation of nanotechnology for both biological and environmental applications. Zebrafish as a model organism provides unique opportunities to dissect nano-bio interactions occurring at different biological barriers. In this review, we focus on four key biological barriers, namely cell membrane, blood-brain barrier (BBB), skin and gill epithelia, and gastrointestinal tract (GIT), and highlight recent advancement achieved by using zebrafish to conduct both visualized observations and mechanistic investigations on a diversity of nano-bio interactions.
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Affiliation(s)
- Jinyu Rong
- College of Environmental Science and Engineering, Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, Tongji University, Shanghai 200092, China.
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45
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Peng Y, Wang W, Fang Y, Hu H, Chang N, Pang M, Hu YF, Li X, Long H, Xiong JW, Zhang R. Inhibition of TGF-β/Smad3 Signaling Disrupts Cardiomyocyte Cell Cycle Progression and Epithelial-Mesenchymal Transition-Like Response During Ventricle Regeneration. Front Cell Dev Biol 2021; 9:632372. [PMID: 33816481 PMCID: PMC8010688 DOI: 10.3389/fcell.2021.632372] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 02/03/2021] [Indexed: 12/11/2022] Open
Abstract
Unlike mammals, zebrafish can regenerate injured hearts even in the adult stage. Cardiac regeneration requires the coordination of cardiomyocyte (CM) proliferation and migration. The TGF-β/Smad3 signaling pathway has been implicated in cardiac regeneration, but the molecular mechanisms by which this pathway regulates CM proliferation and migration have not been fully illustrated. Here, we investigated the function of TGF-β/Smad3 signaling in a zebrafish model of ventricular ablation. Multiple components of this pathway were upregulated/activated after injury. Utilizing a specific inhibitor of Smad3, we detected an increased ratio of unrecovered hearts. Transcriptomic analysis suggested that the TGF-β/Smad3 signaling pathway could affect CM proliferation and migration. Further analysis demonstrated that the CM cell cycle was disrupted and the epithelial–mesenchymal transition (EMT)-like response was impaired, which limited cardiac regeneration. Altogether, our study reveals an important function of TGF-β/Smad3 signaling in CM cell cycle progression and EMT process during zebrafish ventricle regeneration.
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Affiliation(s)
- Yuanyuan Peng
- School of Life Sciences, Fudan University, Shanghai, China
| | - Wenyuan Wang
- School of Life Sciences, Fudan University, Shanghai, China
| | - Yunzheng Fang
- School of Life Sciences, Fudan University, Shanghai, China
| | - Haichen Hu
- Shanghai Medical College, Fudan University, Shanghai, China
| | - Nannan Chang
- Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing, China
| | - Meijun Pang
- Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing, China
| | - Ye-Fan Hu
- School of Life Sciences, Fudan University, Shanghai, China.,Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, China.,School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, China
| | - Xueyu Li
- School of Life Sciences, Fudan University, Shanghai, China
| | - Han Long
- School of Life Sciences, Fudan University, Shanghai, China
| | - Jing-Wei Xiong
- Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing, China
| | - Ruilin Zhang
- School of Basic Medical Sciences, Wuhan University, Wuhan, China
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