1
|
Bai Y, Hei N, Gao M, Dong X, Li M, Jiang S, Zhang L. LDLR heterozygous deletion reduces hamster testicular cholesterol toxicity via AMPK/Sirt1/PGC-1α pathway. Toxicol Lett 2023; 384:30-43. [PMID: 37459939 DOI: 10.1016/j.toxlet.2023.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/27/2023] [Accepted: 07/11/2023] [Indexed: 07/22/2023]
Abstract
Cholesterol is an important part of the human diet. The relationship and molecular mechanisms between intracellular cholesterol and male infertility are unclear. The purpose of this study was to evaluate the role of low-density lipoprotein receptor (LDLR) in male infertility. Both wild-type (WT) and LDLR heterozygous deletion (LDLR+/-) male Golden Syrian hamsters were fed either a high-fat diet (HFD) or a normal diet (ND). Plasma biochemistry, serum hormone, testicular histopathology, mRNA and protein expression of AMPK/Sirt1/PGC-1α in both testicular tissue and isolated Leydig cells (LCs) were measured. Compared with the ND animals, the WT HFD hamsters developed dyslipidemia at three weeks with lipid droplets deposited in LCs, testosterone decreased at four weeks (0.440 ± 0.264 ng/ml vs. 2.367 ± 1.236 ng/ml), the number of the Sertoli cells decreased (21.578 ± 2.934/one tubule vs. 25.733 ± 3.424/one tubule), the seminiferous epithelium became thinner (0.0813 ± 0.01729 mm vs. 0.0944 ± 0.0138 mm), testicular atrophy and AMPK/Sirt1/PGC-1α pathway downregulated at five weeks. All these changes persisted until the end of the study. LDLR+/- alleviated all of the above changes by downregulating the cellular influx of cholesterol induced by HFD except for higher hyperlipidemia. In summary, excessive intracellular cholesterol inactivates AMPK/Sirt1/PGC-1α pathway firstly in LCs and then in both Sertoli and spermatids. Cholesterol toxicity was LDLR dependent.
Collapse
Affiliation(s)
- Yun Bai
- Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China; Department of Obstetrics and Gynecology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Naiheng Hei
- Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China; The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Mingming Gao
- Laboratory of Lipid Metabolism, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Xiaohui Dong
- Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Mingzhao Li
- Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Shaohao Jiang
- School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Lianshan Zhang
- Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China.
| |
Collapse
|
2
|
Wang T, Xie ZH, Wang L, Luo H, Zhang J, Dong WT, Zheng XH, Ye C, Tian XB, Liu G, Zhu XS, Li YL, Kang QL, Zhang F, Peng WX. LncAABR07053481 inhibits bone marrow mesenchymal stem cell apoptosis and promotes repair following steroid-induced avascular necrosis. Commun Biol 2023; 6:365. [PMID: 37012358 PMCID: PMC10070412 DOI: 10.1038/s42003-023-04661-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 03/03/2023] [Indexed: 04/05/2023] Open
Abstract
The osteonecrotic area of steroid-induced avascular necrosis of the femoral head (SANFH) is a hypoxic microenvironment that leads to apoptosis of transplanted bone marrow mesenchymal stem cells (BMSCs). However, the underlying mechanism remains unclear. Here, we explore the mechanism of hypoxic-induced apoptosis of BMSCs, and use the mechanism to improve the transplantation efficacy of BMSCs. Our results show that the long non-coding RNA AABR07053481 (LncAABR07053481) is downregulated in BMSCs and closely related to the degree of hypoxia. Overexpression of LncAABR07053481 could increase the survival rate of BMSCs. Further exploration of the downstream target gene indicates that LncAABR07053481 acts as a molecular "sponge" of miR-664-2-5p to relieve the silencing effect of miR-664-2-5p on the target gene Notch1. Importantly, the survival rate of BMSCs overexpressing LncAABR07053481 is significantly improved after transplantation, and the repair effect of BMSCs in the osteonecrotic area is also improved. This study reveal the mechanism by which LncAABR07053481 inhibits hypoxia-induced apoptosis of BMSCs by regulating the miR-664-2-5p/Notch1 pathway and its therapeutic effect on SANFH.
Collapse
Affiliation(s)
- Tao Wang
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Zhi-Hong Xie
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Lei Wang
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Hong Luo
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Jian Zhang
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Wen-Tao Dong
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Xiao-Han Zheng
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Chuan Ye
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Xiao-Bin Tian
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Gang Liu
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Xue-Song Zhu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215000, P.R. China
| | - Yan-Lin Li
- Department of Sports Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650000, P.R. China
| | - Qing-Lin Kang
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, P.R. China
| | - Fei Zhang
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China.
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China.
| | - Wu-Xun Peng
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China.
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China.
| |
Collapse
|
3
|
MicroRNA-34a Promotes Ischemia-Induced Cardiomyocytes Apoptosis through Targeting Notch1. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:1388415. [PMID: 35265142 PMCID: PMC8901351 DOI: 10.1155/2022/1388415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 01/23/2022] [Accepted: 02/03/2022] [Indexed: 11/22/2022]
Abstract
Myocardial apoptosis occurs during myocardial ischemia. This study aimed to determine the effect of microRNA-34a (miR-34a) in ischemia-induced myocardial apoptosis. Mainly, SD rats were subjected to myocardial ischemia by ligaturing the left anterior descending branch of coronary artery. After rats had myocardial infarction, HE staining and TUNEL staining confirmed a significant increase in apoptosis. The expression of miR-34a was noticeably upregulated, while the expression of Notch1 was downregulated. An increase in caspase-3 and a decrease in Bcl-2/Bax ratio were observed in myocardium. Similar results were observed in the in vitro model of cardiomyocyte ischemia and anoxia of this study. When rat cardiomyocytes were administered with serum starvation and microaerophilic system, apoptosis-related proteins were significantly increased. However, transfecting the miR-34a inhibitor into the cardiomyocyte before the serum starvation and hypoxia treatment could increase the ratio of Bcl-2/Bax and downregulate the expression of caspase-3, as well as prevent cardiomyocytes from apoptosis. As opposed to the abovementioned points, the upregulation of miR-34a expression by transfecting miR-34a mimics induced Notch1 reduce and apoptosis-related proteins increase apparently, while upregulation of Notch1 could stimulate apoptosis attributed to miR-34a. Mechanistically, we demonstrated that Notch1 is a direct target of miR-34a. In conclusion, our current results suggested that miR-34a significantly stimulates ischemia-induced cardiomyocytes apoptosis by targeting Notch1.
Collapse
|
4
|
Shoushrah SH, Transfeld JL, Tonk CH, Büchner D, Witzleben S, Sieber MA, Schulze M, Tobiasch E. Sinking Our Teeth in Getting Dental Stem Cells to Clinics for Bone Regeneration. Int J Mol Sci 2021; 22:6387. [PMID: 34203719 PMCID: PMC8232184 DOI: 10.3390/ijms22126387] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/27/2021] [Accepted: 06/02/2021] [Indexed: 12/12/2022] Open
Abstract
Dental stem cells have been isolated from the medical waste of various dental tissues. They have been characterized by numerous markers, which are evaluated herein and differentiated into multiple cell types. They can also be used to generate cell lines and iPSCs for long-term in vitro research. Methods for utilizing these stem cells including cellular systems such as organoids or cell sheets, cell-free systems such as exosomes, and scaffold-based approaches with and without drug release concepts are reported in this review and presented with new pictures for clarification. These in vitro applications can be deployed in disease modeling and subsequent pharmaceutical research and also pave the way for tissue regeneration. The main focus herein is on the potential of dental stem cells for hard tissue regeneration, especially bone, by evaluating their potential for osteogenesis and angiogenesis, and the regulation of these two processes by growth factors and environmental stimulators. Current in vitro and in vivo publications show numerous benefits of using dental stem cells for research purposes and hard tissue regeneration. However, only a few clinical trials currently exist. The goal of this review is to pinpoint this imbalance and encourage scientists to pick up this research and proceed one step further to translation.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Edda Tobiasch
- Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, von-Liebig- Strasse. 20, 53359 Rheinbach, Germany; (S.H.S.); (J.L.T.); (C.H.T.); (D.B.); (S.W.); (M.A.S.); (M.S.)
| |
Collapse
|
5
|
Dental Mesenchymal Stem/Progenitor Cells: A New Prospect in Regenerative Medicine. Stem Cells 2021. [DOI: 10.1007/978-3-030-77052-5_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
6
|
Chen X, Ren L, Liu X, Sun X, Dong C, Jiang Y, Qin Y, Qu H, Jiao J, Wang S, Bai Y, Yang B. Ranolazine protects against diabetic cardiomyopathy by activating the NOTCH1/NRG1 pathway. Life Sci 2020; 261:118306. [DOI: 10.1016/j.lfs.2020.118306] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 08/17/2020] [Accepted: 08/18/2020] [Indexed: 12/21/2022]
|
7
|
Dental Follicle Cells: Roles in Development and Beyond. Stem Cells Int 2019; 2019:9159605. [PMID: 31636679 PMCID: PMC6766151 DOI: 10.1155/2019/9159605] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 08/16/2019] [Indexed: 02/05/2023] Open
Abstract
Dental follicle cells (DFCs) are a group of mesenchymal progenitor cells surrounding the tooth germ, responsible for cementum, periodontal ligament, and alveolar bone formation in tooth development. Cascades of signaling pathways and transcriptional factors in DFCs are involved in directing tooth eruption and tooth root morphogenesis. Substantial researches have been made to decipher multiple aspects of DFCs, including multilineage differentiation, senescence, and immunomodulatory ability. DFCs were proved to be multipotent progenitors with decent amplification, immunosuppressed and acquisition ability. They are able to differentiate into osteoblasts/cementoblasts, adipocytes, neuron-like cells, and so forth. The excellent properties of DFCs facilitated clinical application, as exemplified by bone tissue engineering, tooth root regeneration, and periodontium regeneration. Except for the oral and maxillofacial regeneration, DFCs were also expected to be applied in other tissues such as spinal cord defects (SCD), cardiomyocyte destruction. This article reviewed roles of DFCs in tooth development, their properties, and clinical application potentials, thus providing a novel guidance for tissue engineering.
Collapse
|
8
|
Zhang J, Ding H, Liu X, Sheng Y, Liu X, Jiang C. Dental Follicle Stem Cells: Tissue Engineering and Immunomodulation. Stem Cells Dev 2019; 28:986-994. [PMID: 30968740 DOI: 10.1089/scd.2019.0012] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Jie Zhang
- Department of Orthodontics, the Affiliated Hospital of Qingdao University; School of Stomatology, Qingdao University, Qingdao, China
| | - Hong Ding
- Department of Orthodontics, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xinfeng Liu
- Department of Nuclear Medicine, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yunfei Sheng
- Department of Orthodontics, the Affiliated Hospital of Qingdao University; School of Stomatology, Qingdao University, Qingdao, China
| | - Xinqiang Liu
- Department of Orthodontics, the Affiliated Hospital of Qingdao University; School of Stomatology, Qingdao University, Qingdao, China
| | - Chunmiao Jiang
- Department of Orthodontics, the Affiliated Hospital of Qingdao University; School of Stomatology, Qingdao University, Qingdao, China
| |
Collapse
|
9
|
You L, Pan YY, An MY, Chen WH, Zhang Y, Wu YN, Li Y, Sun K, Yin YQ, Lou JS. The Cardioprotective Effects of Remote Ischemic Conditioning in a Rat Model of Acute Myocardial Infarction. Med Sci Monit 2019; 25:1769-1779. [PMID: 30848248 PMCID: PMC6419535 DOI: 10.12659/msm.914916] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Background Cardiac remote ischemic conditioning (RIC) is a noninvasive cardioprotective method in ischemia-reperfusion injury and acute myocardial infarction (AMI). The aims of this study were to investigate the effects of RIC in a rat model of AMI. Material/Methods Adult male Sprague-Dawley rats included the AMI group that underwent ligation of the left anterior descending (LAD) coronary artery (n=24), the RIC group that consisted the AMI rat model treated with RIC once daily in the left hind limb until days 1, 7 and 14 (n=24), and the sham group (n=24). Myocardial infarct size was measured by routine histology with triphenyltetrazolium chloride (TTC) and Masson’s trichrome histochemical staining for myocardial necrosis and fibrosis, respectively. Serum levels of Bcl-2, Bax, caspase-3, and inducible nitric oxide synthase (iNOS) were measured by enzyme-linked immunosorbent assay (ELISA). The apoptosis index was detected using the TUNEL assay. Spectrophotometry of the myocardium was used to identify mitochondrial complexes and myocardial ATP. Results The RIC group showed improved cardiac hemodynamics, reduced the size of the myocardial infarction, upregulated expression of Bcl-2, and down-regulation of the levels of Bax, caspase-3, and iNOS, and reduced cardiac myocyte apoptosis and inhibited the opening of the mitochondrial permeability transition pore (MPTP). Conclusions In a rat model of AMI, RIC improved the hemodynamic index, reduce the levels of apoptosis and myocardial injury, and improved mitochondrial function.
Collapse
Affiliation(s)
- Li You
- Department of Pharmacology, College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China (mainland).,Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Ying-Ying Pan
- Department of Pharmacology, College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China (mainland).,Dasi Town Community Healthcare Center, Tianjin, China (mainland)
| | - Meng-Yao An
- Department of Pharmacology, College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China (mainland)
| | - Wen-Hua Chen
- Department of Pharmacy, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China (mainland)
| | - Ying Zhang
- Department of Pharmacology, College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China (mainland)
| | - Yan-Na Wu
- Department of Pharmacology, College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China (mainland)
| | - Yan Li
- Department of Pharmacology, College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China (mainland)
| | - Kai Sun
- Department of Pharmacology, College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China (mainland)
| | - Yong-Qiang Yin
- Department of Pharmacology, College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China (mainland)
| | - Jian-Shi Lou
- Department of Pharmacology, College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China (mainland)
| |
Collapse
|
10
|
Deng L, Hong H, Zhang X, Chen D, Chen Z, Ling J, Wu L. Down-regulated lncRNA MEG3 promotes osteogenic differentiation of human dental follicle stem cells by epigenetically regulating Wnt pathway. Biochem Biophys Res Commun 2018; 503:2061-2067. [PMID: 30103943 DOI: 10.1016/j.bbrc.2018.07.160] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 07/31/2018] [Indexed: 01/03/2023]
Abstract
Our previous long noncoding RNA (lncRNA) microarray results showed that lncRNA MEG3 (maternally expressed 3) was significantly downregulated in human dental follicle cells than human periodontal ligament cells. Latest studies show that MEG3 contributes to polycomb repressive complex 2 (PRC2) recruitment to silence gene expression. The enhancer of zeste homolog 2 (EZH2), a crucial catalytic subunit of PRC2, mediates gene silencing and participates in cell lineage determination via methyltransferase activity. In this study, we found that the expression of EZH2 and H3K27me3 (trimethylation on lysine 27 in histone H3) decreased during osteogenesis of human dental follicle stem cells (hDFSCs). Knockdown studies of MEG3 and EZH2 by siRNA showed that MEG3/EZH2 negatively regulated osteogenesis of hDFSCs. We investigated the role of Wnt signaling pathway during the osteogenesis of hDFSCs and its relationship with EZH2. Besides, we studied the key genes of the canonical/noncanonical Wnt signaling pathway which might be related to EZH2. ChIP (chromatin immunoprecipitation) analysis showed that these effects were due to the EZH2 regulation of H3K27me3 level on the Wnt genes promotors. We first demonstrated that the decrease of MEG3 or EZH2 activated the Wnt/β-catenin signaling pathway via epigenetically regulating the H3K27me3 level on the Wnt genes promotors. Our research offers a new target for periodontal tissue engineering and osteogenic tissue regeneration.
Collapse
Affiliation(s)
- Lidi Deng
- Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong, China
| | - Hong Hong
- Zhujiang New Town Dental Clinic, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong, China
| | - Xueqin Zhang
- Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong, China
| | - Dongru Chen
- Department of Preventive Dentistry, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong, China
| | - Zhengyuan Chen
- Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong, China
| | - Junqi Ling
- Department of Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong, China.
| | - Liping Wu
- Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong, China.
| |
Collapse
|
11
|
Yang X, He C, Zhu L, Zhao W, Li S, Xia C, Xu C. Comparative Analysis of Regulatory Role of Notch Signaling Pathway in 8 Types Liver Cell During Liver Regeneration. Biochem Genet 2018; 57:1-19. [PMID: 29961162 DOI: 10.1007/s10528-018-9869-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 06/16/2018] [Indexed: 12/18/2022]
Abstract
Notch signaling is closely related to cell proliferation, cell apoptosis, cell fate decisions, DNA damage repair, and so on. However, the exactly regulatory mechanism of Notch signaling pathway in liver regeneration (LR) remains unclear. To reveal the role of Notch signaling pathway in rat liver regeneration, Ingenuity Pathway Analysis (IPA) software and related pathway database were firstly used to construct the Notch signaling pathway in this study. Next, eight type cells with high purity were obtained by Percoll density centrifugation and immunomagnetic beads sorting. Then, the expression profiles of Notch signaling pathway-related genes in eight type cells were checked by using Rat Genome 230 2.0 Array, and the results showed that the expression of 42 genes were significantly regulated. H-cluster results showed that the hepatic stellate cells are attributed to one cluster; hepatocyte cell, oval cell, sinusoidal endothelial cell, and Kupffer cell are clustered together; and biliary epithelial cell, pit cell, and dendritic cell are one cluster. IPA software and Expression analysis systematic explorer analysis indicated that Notch signaling pathway-related genes were involved in cell proliferation, apoptosis, cell cycle, DNA damage repair, etc. In conclusion, Notch signaling pathway might regulate various physiological activities of LR through multiple pathways.
Collapse
Affiliation(s)
- Xianguang Yang
- College of Life Science, Henan Normal University, No. 46, Constrution East Road, Xinxiang, 453007, Henan, China.,Co-constructing Key Laboratory for Cell Differentiation Regulation, Xinxiang, 453007, China
| | - Chuncui He
- College of Life Science, Henan Normal University, No. 46, Constrution East Road, Xinxiang, 453007, Henan, China.,Co-constructing Key Laboratory for Cell Differentiation Regulation, Xinxiang, 453007, China
| | - Lin Zhu
- College of Life Science, Henan Normal University, No. 46, Constrution East Road, Xinxiang, 453007, Henan, China.,Co-constructing Key Laboratory for Cell Differentiation Regulation, Xinxiang, 453007, China
| | - Weiming Zhao
- College of Life Science, Henan Normal University, No. 46, Constrution East Road, Xinxiang, 453007, Henan, China.,Co-constructing Key Laboratory for Cell Differentiation Regulation, Xinxiang, 453007, China
| | - Shuaihong Li
- College of Life Science, Henan Normal University, No. 46, Constrution East Road, Xinxiang, 453007, Henan, China.,Co-constructing Key Laboratory for Cell Differentiation Regulation, Xinxiang, 453007, China
| | - Cong Xia
- College of Life Science, Henan Normal University, No. 46, Constrution East Road, Xinxiang, 453007, Henan, China.,Co-constructing Key Laboratory for Cell Differentiation Regulation, Xinxiang, 453007, China
| | - Cunshuan Xu
- College of Life Science, Henan Normal University, No. 46, Constrution East Road, Xinxiang, 453007, Henan, China. .,Co-constructing Key Laboratory for Cell Differentiation Regulation, Xinxiang, 453007, China.
| |
Collapse
|
12
|
Zhai M, Xie Y, Liang H, Lei X, Zhao Z. Comparative profiling of differentially expressed microRNAs in estrous ovaries of Kazakh sheep in different seasons. Gene 2018; 664:181-191. [PMID: 29704632 DOI: 10.1016/j.gene.2018.04.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 03/24/2018] [Accepted: 04/11/2018] [Indexed: 12/22/2022]
Abstract
Seasonal estrus is a critical limiting factor for animal fecundity. However, estrus occurs in some seasonally estrous sheep in the non-breeding season, and this phenomenon involves changes in ovarian biology. Previous studies indicated that small RNAs, such as microRNAs (miRNAs), play important regulatory roles in ovarian biology. Differentially expressed miRNAs in the ovaries of estrous sheep were identified using Solexa sequencing technology. A total of 423 known miRNAs were identified in ovaries of estrous sheep in the breeding season and non-breeding season. In the comparison of these two groups, 48 miRNAs were identified that were differentially expressed between the two groups (including 5 up-regulated and 43 down-regulated miRNAs). KEGG pathway analysis revealed that the target genes of some differentially expressed miRNAs were involved in pathways related to reproductive hormone signaling and follicular development. Furthermore, the levels of estradiol (E2), progesterone (P4), luteinizing hormone (LH) and follicle-stimulating hormone (FSH) were lower in anestrus sheep than in sheep during the breeding season. Upon combining the pathway enrichment analysis, target gene expression and hormone measurement results, we suggest that these differentially expressed miRNAs might influence ovarian activity in the non-breeding season by regulating the above pathways. The identification of miRNAs that are differentially expressed between ovines in the breeding season and non-breeding season will contribute to our understanding of the role of miRNAs in estrus regulation, and these data may provide a basis for regulating estrus in sheep during the non-breeding season.
Collapse
Affiliation(s)
- Manjun Zhai
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Yifan Xie
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Huihui Liang
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Xiaoping Lei
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Zongsheng Zhao
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China.
| |
Collapse
|
13
|
Wang P, Shu B, Xu Y, Zhu J, Liu J, Zhou Z, Chen L, Zhao J, Liu X, Qi S, Xiong K, Xie J. Basic fibroblast growth factor reduces scar by inhibiting the differentiation of epidermal stem cells to myofibroblasts via the Notch1/Jagged1 pathway. Stem Cell Res Ther 2017; 8:114. [PMID: 28511663 PMCID: PMC5434520 DOI: 10.1186/s13287-017-0549-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 02/28/2017] [Accepted: 03/31/2017] [Indexed: 01/08/2023] Open
Abstract
Background Basic fibroblast growth factor (bFGF) plays an important role in promoting wound healing and reducing scar, but the possible molecular mechanisms are still unclear. Our previous studies have found that activating the Notch1/Jagged1 pathway can inhibit the differentiation of epidermal stem cells (ESCs) to myofibroblasts (MFB). Herein, we document that bFGF reduces scar by inhibiting the differentiation of ESCs to MFB via activating the Notch1/Jagged1 pathway. Methods In in-vitro study, ESCs were isolated from 10 neonatal SD rats (1–3 days old), cultured in keratinocyte serum-free medium, and divided into six groups: bFGF group, bFGF + SU5402 group, bFGF + DAPT group, siJagged1 group, bFGF + siJagged1 group, and control group. Jagged1 of the ESCs in the siJagged1 group and bFGF + siJagged1 group was knocked down by small-interfering RNA transfection. Expression of ESC markers (CK15/CK10), MFB markers (α-SMA, Collagen I, Collagen III), and Notch1/Jagged1 components (Jagged1, Notch1, Hes1) was detected by FCM, qRT-PCR, and western blot analysis to study the relationships of bFGF, ESCs, and Notch1/Jagged1 pathway. In in-vivo study, the wound healing time and scar hyperplasia were observed on rabbit ear scar models. The quality of wound healing was estimated by hematoxylin and eosin staining and Masson staining. Expression of ESC markers, MFB markers and Notch1/Jagged1 components was elucidated by immunohistochemistry, immunofluorescence, and western blot analysis. Results The in-vitro study showed that bFGF could significantly upregulate the expression of ESC markers and Notch1/Jagged1 components, while downregulating the expression of MFB markers at the same time. However, these effects could be obviously decreased when we knocked down Jagged1 or added DAPT. Similarly, in in-vivo study, bFGF also exhibited its functions in inhibiting the differentiation of rabbit ESCs to MFB by activating the Notch1/Jagged1 pathway, which improved the wound healing quality and alleviated scar significantly. Conclusion These results provide evidence that bFGF can reduce scar by inhibiting the differentiation of ESCs to MFB via the Notch1/Jagged1 pathway, and present a new promising potential direction for the treatment of scar.
Collapse
Affiliation(s)
- Peng Wang
- Department of Burn Surgery, First Affiliated Hospital of Sun Yat-Sen University, No. 58, 2nd Zhongshan Road, Yuexiu District, Guangzhou, Guangdong Province, 510080, People's Republic of China
| | - Bin Shu
- Department of Burn Surgery, First Affiliated Hospital of Sun Yat-Sen University, No. 58, 2nd Zhongshan Road, Yuexiu District, Guangzhou, Guangdong Province, 510080, People's Republic of China
| | - Yingbin Xu
- Department of Burn Surgery, First Affiliated Hospital of Sun Yat-Sen University, No. 58, 2nd Zhongshan Road, Yuexiu District, Guangzhou, Guangdong Province, 510080, People's Republic of China
| | - Jiayuan Zhu
- Department of Burn Surgery, First Affiliated Hospital of Sun Yat-Sen University, No. 58, 2nd Zhongshan Road, Yuexiu District, Guangzhou, Guangdong Province, 510080, People's Republic of China
| | - Jian Liu
- Department of Burn Surgery, First Affiliated Hospital of Sun Yat-Sen University, No. 58, 2nd Zhongshan Road, Yuexiu District, Guangzhou, Guangdong Province, 510080, People's Republic of China
| | - Ziheng Zhou
- Department of Burn Surgery, First Affiliated Hospital of Sun Yat-Sen University, No. 58, 2nd Zhongshan Road, Yuexiu District, Guangzhou, Guangdong Province, 510080, People's Republic of China
| | - Lei Chen
- Department of Burn Surgery, First Affiliated Hospital of Sun Yat-Sen University, No. 58, 2nd Zhongshan Road, Yuexiu District, Guangzhou, Guangdong Province, 510080, People's Republic of China
| | - Jingling Zhao
- Department of Burn Surgery, First Affiliated Hospital of Sun Yat-Sen University, No. 58, 2nd Zhongshan Road, Yuexiu District, Guangzhou, Guangdong Province, 510080, People's Republic of China
| | - Xusheng Liu
- Department of Burn Surgery, First Affiliated Hospital of Sun Yat-Sen University, No. 58, 2nd Zhongshan Road, Yuexiu District, Guangzhou, Guangdong Province, 510080, People's Republic of China
| | - Shaohai Qi
- Department of Burn Surgery, First Affiliated Hospital of Sun Yat-Sen University, No. 58, 2nd Zhongshan Road, Yuexiu District, Guangzhou, Guangdong Province, 510080, People's Republic of China
| | - Kun Xiong
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha, Hunan Province, 410013, People's Republic of China
| | - Julin Xie
- Department of Burn Surgery, First Affiliated Hospital of Sun Yat-Sen University, No. 58, 2nd Zhongshan Road, Yuexiu District, Guangzhou, Guangdong Province, 510080, People's Republic of China.
| |
Collapse
|
14
|
Chaini E, Athanassiadou AM, Vassias A, Tsipis A, Gonidi M, Hainis KD, Charpidou A, Athanassiadou P. Immunocytochemical expression of a panel of markers in pleural effusions from patients with primary lung adenocarcinoma. Pathol Res Pract 2017; 213:502-508. [DOI: 10.1016/j.prp.2017.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 02/02/2017] [Accepted: 02/03/2017] [Indexed: 11/28/2022]
|