1
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Zhu T, Liang W, He Y, Zhang B, Liu C, Wang D, Deng L, Li D, Li W, Yan F, Tian Y, Han R, Kang X, Li Z, Jiang R, Sun G. Transcriptomic analysis of mechanism underlying the effect of induced molting on semen quality and reproductive performance in aged Houdan roosters. Poult Sci 2023; 102:102935. [PMID: 37562133 PMCID: PMC10432842 DOI: 10.1016/j.psj.2023.102935] [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: 05/10/2023] [Revised: 07/07/2023] [Accepted: 07/07/2023] [Indexed: 08/12/2023] Open
Abstract
The reproductive performance of breeder roosters has significant economic importance in the poultry industry. Breeder roosters have severely reduced semen quality with age and will be at risk of culling in the following years. In order to extend the use of breeder roosters, we drew on the induced molting model of hens and selected 35 Houdan roosters aged 50 wk for induced molting. By comparing the body weight, testicular weight, semen quality, and reproductive performance before and after induced molting, we found that induced molting could restore the body weight and testicular weight to the levels before molting (P > 0.05). At the same time, it significantly improved sperm motility (P < 0.05) and also improved reproductive performance such as fertilization rate and hatching rate. To further reveal the mechanism underlying the effects of induced molting on semen quality and reproductive performance in aged Houdan roosters, we collected testes from 3 periods: 1 d before fasting (F0), 15 d after fasting (F15), and 32 d after recovery feeding (R32) for transcriptome sequencing analysis. A total of 5,671 genes were detected in F0, F15, and R32, and trend analysis of the 5,671 differential genes showed 2 significant trends (profile 5 and profile 2). KEGG enrichment analysis of the genes in the 2 profiles, revealed significantly enriched pathway regulation of actin cytoskeleton. In the regulation of actin cytoskeleton pathway, we found a protein kinase gene (SRC) and a senescence gene (ROCK2). SRC was highly expressed at F15, leading to the phosphorylation of key substrates, which in turn disrupted the Sertoli cell spermatid connection and the spermiogenesis process, resulting in no mature spermatozoa produced from F15, SRC expression was inhibited at R32, the expression level was reduced, and mature spermatozoa reappeared. The senescence gene ROCK2 was highly expressed at F15 compared to F0 and R32, which may have been responsible for inducing senescence atrophy in the testes.
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Affiliation(s)
- Tingqi Zhu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Wenjie Liang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Yuehua He
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Binbin Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Cong Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Dongxue Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Lekun Deng
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Donghua Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Wenting Li
- The Shennong Laboratory, Zhengzhou, 450002, China; College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Fengbin Yan
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Yadong Tian
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Ruili Han
- The Shennong Laboratory, Zhengzhou, 450002, China; College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Xiangtao Kang
- The Shennong Laboratory, Zhengzhou, 450002, China; College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Zhuanjian Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Ruirui Jiang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Guirong Sun
- The Shennong Laboratory, Zhengzhou, 450002, China; College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China.
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2
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Fão L, Coelho P, Duarte L, Vilaça R, Hayden MR, Mota SI, Rego AC. Restoration of c-Src/Fyn Proteins Rescues Mitochondrial Dysfunction in Huntington's Disease. Antioxid Redox Signal 2023; 38:95-114. [PMID: 35651273 DOI: 10.1089/ars.2022.0001] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Aims: Huntington's disease (HD) is an autosomal-dominant neurodegenerative disorder with no effective therapies. Mutant huntingtin protein (mHTT), the main HD proteinaceous hallmark, has been linked to reactive oxygen species (ROS) formation and mitochondrial dysfunction, among other pathological mechanisms. Importantly, Src-related kinases, c-Src and Fyn, are activated by ROS and regulate mitochondrial activity. However, c-Src/Fyn involvement in HD is largely unexplored. Thus, in this study, we aimed at exploring changes in Src/Fyn proteins in HD models and their role in defining altered mitochondrial function and dynamics and redox regulation. Results: We show, for the first time, that c-Src/Fyn phosphorylation/activation and proteins levels are decreased in several human and mouse HD models mainly due to autophagy degradation, concomitantly with mHtt-expressing cells showing enhanced TFEB-mediated autophagy induction and autophagy flux. c-Src/Fyn co-localization with mitochondria is also reduced. Importantly, the expression of constitutive active c-Src/Fyn to restore active Src kinase family (SKF) levels improves mitochondrial morphology and function, namely through improved mitochondrial transmembrane potential, mitochondrial basal respiration, and ATP production, but it did not affect mitophagy. In addition, constitutive active c-Src/Fyn expression diminishes the levels of reactive species in cells expressing mHTT. Innovation: This work supports a relevant role for c-Src/Fyn proteins in controlling mitochondrial function and redox regulation in HD, revealing a potential HD therapeutic target. Conclusion: c-Src/Fyn restoration in HD improves mitochondrial morphology and function, precluding the rise in oxidant species and cell death. Antioxid. Redox Signal. 38, 95-114.
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Affiliation(s)
- Lígia Fão
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal.,Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Patrícia Coelho
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| | - Luís Duarte
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| | - Rita Vilaça
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal.,Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal
| | - Michael R Hayden
- Centre for Molecular Medicine and Therapeutics, Child and Family Research Institute, The University of British Columbia, Vancouver, Canada
| | - Sandra I Mota
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal.,Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal
| | - Ana Cristina Rego
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal.,Faculty of Medicine, University of Coimbra, Coimbra, Portugal
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3
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Restored Fyn Levels in Huntington’s Disease Contributes to Enhanced Synaptic GluN2B-Composed NMDA Receptors and CREB Activity. Cells 2022; 11:cells11193063. [PMID: 36231023 PMCID: PMC9563007 DOI: 10.3390/cells11193063] [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: 09/03/2022] [Revised: 09/23/2022] [Accepted: 09/27/2022] [Indexed: 11/20/2022] Open
Abstract
N-methyl-D-aspartate receptors (NMDARs) are important postsynaptic receptors that contribute to normal synaptic function and cell survival; however, when overactivated, as in Huntington’s disease (HD), NMDARs cause excitotoxicity. HD-affected striatal neurons show altered NMDAR currents and augmented ratio of surface to internal GluN2B-containing NMDARs, with augmented accumulation at extrasynaptic sites. Fyn protein is a member of the Src kinase family (SKF) with an important role in NMDARs phosphorylation and synaptic localization and function; recently, we demonstrated that Fyn is reduced in several HD models. Thus, in this study, we aimed to explore the impact of HD-mediated altered Fyn levels at post-synaptic density (PSD), and their role in distorted NMDARs function and localization, and intracellular neuroprotective pathways in YAC128 mouse primary striatal neurons. We show that reduced synaptic Fyn levels and activity in HD mouse striatal neurons is related to decreased phosphorylation of synaptic GluN2B-composed NMDARs; this occurs concomitantly with augmented extrasynaptic NMDARs activity and currents and reduced cAMP response element-binding protein (CREB) activation, along with induction of cell death pathways. Importantly, expression of a constitutive active form of SKF reestablishes NMDARs localization, phosphorylation, and function at PSD in YAC128 mouse neurons. Enhanced SKF levels and activity also promotes CREB activation and reduces caspase-3 activation in YAC128 mouse striatal neurons. This work supports, for the first time, a relevant role for Fyn protein in PSD modulation, controlling NMDARs synaptic function in HD, and favoring neuroprotective pathways and cell survival. In this respect, Fyn Tyr kinase constitutes an important potential HD therapeutic target directly acting at PSD.
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What Are the Potential Roles of Nuclear Perlecan and Other Heparan Sulphate Proteoglycans in the Normal and Malignant Phenotype. Int J Mol Sci 2021; 22:ijms22094415. [PMID: 33922532 PMCID: PMC8122901 DOI: 10.3390/ijms22094415] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/19/2021] [Accepted: 04/19/2021] [Indexed: 12/27/2022] Open
Abstract
The recent discovery of nuclear and perinuclear perlecan in annulus fibrosus and nucleus pulposus cells and its known matrix stabilizing properties in tissues introduces the possibility that perlecan may also have intracellular stabilizing or regulatory roles through interactions with nuclear envelope or cytoskeletal proteins or roles in nucleosomal-chromatin organization that may regulate transcriptional factors and modulate gene expression. The nucleus is a mechano-sensor organelle, and sophisticated dynamic mechanoresponsive cytoskeletal and nuclear envelope components support and protect the nucleus, allowing it to perceive and respond to mechano-stimulation. This review speculates on the potential roles of perlecan in the nucleus based on what is already known about nuclear heparan sulphate proteoglycans. Perlecan is frequently found in the nuclei of tumour cells; however, its specific role in these diseased tissues is largely unknown. The aim of this review is to highlight probable roles for this intriguing interactive regulatory proteoglycan in the nucleus of normal and malignant cell types.
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5
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Liu YG, Chen Y, Wang X, Zhao P, Zhu Y, Qi Z. Ezrin is essential for the entry of Japanese encephalitis virus into the human brain microvascular endothelial cells. Emerg Microbes Infect 2021; 9:1330-1341. [PMID: 32538298 PMCID: PMC7473060 DOI: 10.1080/22221751.2020.1757388] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Japanese encephalitis virus (JEV) remains the predominant cause of viral encephalitis worldwide. It reaches the central nervous system upon crossing the blood-brain barrier through pathogenic mechanisms that are not completely understood. Here, using a high-throughput siRNA screening assay combined with verification experiments, we found that JEV enters the primary human brain microvascular endothelial cells (HBMEC) through a caveolae-mediated endocytic pathway. The role of ezrin, an essential host factor for JEV entry based on our screening, in caveolae-mediated JEV internalization was investigated. We observed that JEV internalization in HBMEC is largely dependent on ezrin-mediated actin cytoskeleton polymerization. Moreover, Src, a protein predicted by a STRING database search, was found to be required in JEV entry. By a variety of pharmacological inhibition and immunoprecipitation assays, we found that Src, ezrin, and caveolin-1 were sequentially activated and formed a complex during JEV infection. A combination of in vitro kinase assay and subcellular analysis demonstrated that ezrin is essential for Src-caveolin-1 interactions. In vivo, both Src and ezrin inhibitors protected ICR suckling mice against JEV-induced mortality and diminished mouse brain viral load. Therefore, JEV entry into HBMEC requires the activation of the Src-ezrin-caveolin-1 signalling axis, which provides potential targets for restricting JEV infection.
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Affiliation(s)
- Yan-Gang Liu
- Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Naval Medical University (Second Military Medical University), Shanghai, People's Republic of China
| | - Yang Chen
- Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Naval Medical University (Second Military Medical University), Shanghai, People's Republic of China.,College of Basic Medicine, Naval Medical University (Second Military Medical University Shanghai), Shanghai, People's Republic of China
| | - Xiaohang Wang
- Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Naval Medical University (Second Military Medical University), Shanghai, People's Republic of China.,College of Basic Medicine, Naval Medical University (Second Military Medical University Shanghai), Shanghai, People's Republic of China
| | - Ping Zhao
- Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Naval Medical University (Second Military Medical University), Shanghai, People's Republic of China
| | - Yongzhe Zhu
- Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Naval Medical University (Second Military Medical University), Shanghai, People's Republic of China
| | - Zhongtian Qi
- Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Naval Medical University (Second Military Medical University), Shanghai, People's Republic of China
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6
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Estrogen and Glycemic Homeostasis: The Fundamental Role of Nuclear Estrogen Receptors ESR1/ESR2 in Glucose Transporter GLUT4 Regulation. Cells 2021; 10:cells10010099. [PMID: 33430527 PMCID: PMC7827878 DOI: 10.3390/cells10010099] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/03/2021] [Accepted: 01/04/2021] [Indexed: 02/07/2023] Open
Abstract
Impaired circulating estrogen levels have been related to impaired glycemic homeostasis and diabetes mellitus (DM), both in females and males. However, for the last twenty years, the relationship between estrogen, glycemic homeostasis and the mechanisms involved has remained unclear. The characterization of estrogen receptors 1 and 2 (ESR1 and ESR2) and of insulin-sensitive glucose transporter type 4 (GLUT4) finally offered a great opportunity to shed some light on estrogen regulation of glycemic homeostasis. In this manuscript, we review the relationship between estrogen and DM, focusing on glycemic homeostasis, estrogen, ESR1/ESR2 and GLUT4. We review glycemic homeostasis and GLUT4 expression (muscle and adipose tissues) in Esr1−/− and Esr2−/− transgenic mice. We specifically address estradiol-induced and ESR1/ESR2-mediated regulation of the solute carrier family 2 member 4 (Slc2a4) gene, examining ESR1/ESR2-mediated genomic mechanisms that regulate Slc2a4 transcription, especially those occurring in cooperation with other transcription factors. In addition, we address the estradiol-induced translocation of ESR1 and GLUT4 to the plasma membrane. Studies make it clear that ESR1-mediated effects are beneficial, whereas ESR2-mediated effects are detrimental to glycemic homeostasis. Thus, imbalance of the ESR1/ESR2 ratio may have important consequences in metabolism, highlighting that ESR2 hyperactivity assumes a diabetogenic role.
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7
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Guedouari H, Ould Amer Y, Pichaud N, Hebert-Chatelain E. Characterization of the interactome of c-Src within the mitochondrial matrix by proximity-dependent biotin identification. Mitochondrion 2021; 57:257-269. [PMID: 33412331 DOI: 10.1016/j.mito.2020.12.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 12/09/2020] [Accepted: 12/30/2020] [Indexed: 12/27/2022]
Abstract
C-Src kinase is localized in several subcellular compartments, including mitochondria where it is involved in the regulation of organelle functions and overall metabolism. Surprisingly, the characterization of the intramitochondrial Src interactome has never been fully determined. Using in vitro proximity-dependent biotin identification (BioID) coupled to mass spectrometry, we identified 51 candidate proteins that may interact directly or indirectly with c-Src within the mitochondrial matrix. Pathway analysis suggests that these proteins are involved in a large array of mitochondrial functions such as protein folding and import, mitochondrial organization and transport, oxidative phosphorylation, tricarboxylic acid cycle and metabolism of amino and fatty acids. Among these proteins, we identified 24 tyrosine phosphorylation sites in 17 mitochondrial proteins (AKAP1, VDAC1, VDAC2, VDAC3, LonP1, Hsp90, SLP2, PHB2, MIC60, UBA1, EF-Tu, LRPPRC, ACO2, OAT, ACAT1, ETFβ and ATP5β) as potential substrates for intramitochondrial Src using in silico prediction of tyrosine phospho-sites. Interaction of c-Src with SLP2 and ATP5β was confirmed using coimmunoprecipitation. This study suggests that the intramitochondrial Src could target several proteins and regulate different mitochondrial functions.
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Affiliation(s)
- Hala Guedouari
- Canada Research Chair in Mitochondrial Signaling and Physiopathology, Moncton, NB, Canada; University of Moncton, Dept. of Biology, Moncton, NB, Canada
| | - Yasmine Ould Amer
- Canada Research Chair in Mitochondrial Signaling and Physiopathology, Moncton, NB, Canada; University of Moncton, Dept. of Biology, Moncton, NB, Canada
| | - Nicolas Pichaud
- University of Moncton, Dept. of Chemistry and Biochemistry, Moncton, NB, Canada
| | - Etienne Hebert-Chatelain
- Canada Research Chair in Mitochondrial Signaling and Physiopathology, Moncton, NB, Canada; University of Moncton, Dept. of Biology, Moncton, NB, Canada.
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8
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Panax ginseng metabolite (GIM-1) modulates the effects of monobutyl phthalate (MBP) on the GPR30/GPER1 canonical pathway in human Sertoli cells. Reprod Toxicol 2020; 96:209-215. [DOI: 10.1016/j.reprotox.2020.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/25/2020] [Accepted: 07/13/2020] [Indexed: 12/31/2022]
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9
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Hussain A, Gilloteaux J. The human testes: Estrogen and ageing outlooks. TRANSLATIONAL RESEARCH IN ANATOMY 2020. [DOI: 10.1016/j.tria.2020.100073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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10
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The E3 ubiquitin ligase TRIM7 suppressed hepatocellular carcinoma progression by directly targeting Src protein. Cell Death Differ 2019; 27:1819-1831. [PMID: 31802035 DOI: 10.1038/s41418-019-0464-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 11/15/2019] [Accepted: 11/18/2019] [Indexed: 12/29/2022] Open
Abstract
Aberrant Src kinase activity is known to be involved in a variety of human malignancies, whereas the regulatory mechanism of Src has not been completely clarified. Here, we demonstrated that tripartite motif containing 7 (TRIM7) directly interacted with Src, induced Lys48-linked polyubiquitination of Src and reduced the abundance of Src protein in hepatocellular carcinoma (HCC) cells. We further identified TRIM7 as a tumor suppressor in HCC cells through its negative modulation of the Src-mTORC1-S6K1 axis in vivo and in vitro in several HCC models. Moreover, we verified the dysregulated expression of TRIM7 in clinical liver cancer tissues and its negative correlation with Src protein in clinical HCC specimens. Overall, we demonstrated that TRIM7 suppressed HCC progression through its direct negative regulation of Src and modulation of the Src-mTORC1-S6K1 axis; thus, we provided a novel insight into the development of HCC and defined a promising therapeutic strategy for cancers with overactive Src by modulating TRIM7.
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11
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Hong X, Yu JJ. Silencing of lysyl oxidase‑like 2 inhibits the migration, invasion and epithelial‑to‑mesenchymal transition of renal cell carcinoma cells through the Src/FAK signaling pathway. Int J Oncol 2019; 54:1676-1690. [PMID: 30816490 PMCID: PMC6438419 DOI: 10.3892/ijo.2019.4726] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 10/22/2018] [Indexed: 12/22/2022] Open
Abstract
The aim of the present study was to investigate the effects of lysyl oxidase-like 2 (LOXL2) on the invasion, migration and epithelial-to-mesenchymal transition (EMT) of renal cell carcinoma (RCC) cells through the steroid receptor coactivator (Src)/focal adhesion kinase (FAK) signaling pathway. RCC tissues and adjacent normal tissues were collected from 80 patients with RCC. Immunohistochemistry was used to determine the positive expression rate of the LOXL2 protein. The expression levels of LOXL2 in the HK-2, 786-O, ACHN, Caki1 and A498 cell lines were detected by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The high LOXL2-expressing 786-O cells were selected for gene silencing experiments, whereas Caki1 cells, which exhibited low LOXL2 expression, were used for overexpression experiments. RT-qPCR and western blot analysis were applied to determine the expression of LOXL2, FAK, Src, matrix metalloproteinase (MMP)-9, epithelial (E)-cadherin, neuronal (N)-cadherin and vimentin. A MTT assay, a Transwell assay, a wound healing assay and flow cytometry were performed to detect cell proliferation, invasion, migration, cell cycle distribution and apoptosis, respectively. The protein expression rate of LOXL2 in RCC tissues was higher compared with that in adjacent normal tissues. Compared with adjacent normal tissues, the mRNA and protein expression levels of LOXL2, FAK, Src, MMP-9, N-cadherin and vimentin and the levels of FAK and Src phosphorylation were increased, while the mRNA and protein expression levels of E-cadherin were decreased in RCC tissues. Following the transfection of 786-O cells with small interfering (si) RNA against LOXL2, the mRNA and protein expression levels of FAK, Src, MMP-9, N-cadherin and vimentin and the levels of phosphorylated FAK and Src were notably decreased in the si-LOXL2 and PP2 inhibitor treated groups, while that of E-cadherin was substantially increased. Additionally, cell proliferation, invasion, migration and the percentage of RCC cells in the G1 phase were reduced, and cell apoptosis was increased. Additionally, Caki1 cells transfected with LOXL2 exhibited an opposite trend. In summary, these results indicate that LOXL2 silencing inhibits the invasion, migration and EMT in RCC cells through inhibition of the Src/FAK signaling pathway.
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Affiliation(s)
- Xi Hong
- Department of Urology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Jian-Jun Yu
- Department of Urology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
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12
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Xiao X, Yang Y, Mao B, Cheng CY, Ni Y. Emerging role for SRC family kinases in junction dynamics during spermatogenesis. Reproduction 2019; 157:R85-R94. [PMID: 30608903 PMCID: PMC6602873 DOI: 10.1530/rep-18-0440] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 01/03/2019] [Indexed: 12/22/2022]
Abstract
SRC family kinases (SFKs) are known regulators of multiple cellular events, including cell movement, differentiation, proliferation, survival and apoptosis. SFKs are expressed virtually by all mammalian cells. They are non-receptor protein kinases that phosphorylate a variety of cellular proteins on tyrosine, leading to the activation of protein targets in response to environmental stimuli. Among SFKs, SRC, YES and FYN are the ubiquitously expressed and best studied members. In fact, SRC, the prototypical SFK, was the first tyrosine kinase identified in mammalian cells. Studies have shown that SFKs are regulators of cell junctions, and function in endocytosis and membrane trafficking to regulate junction restructuring events. Herein, we briefly summarize the recent findings in the field regarding the role of SFKs in the testis in regulating spermatogenesis, particularly in Sertoli-Sertoli and Sertoli-germ cell adhesion. While it is almost 50 years since the identification of the oncogene v-Src encoded by Rous sarcoma transforming virus, the understanding of SFK involvement during spermatogenesis in the testis remains far behind that in other epithelia and tissues. The goal of this review is to bridge this gap.
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Affiliation(s)
- Xiang Xiao
- Department of Reproductive Physiology, Zhejiang Academy of Medical Sciences, Hangzhou 310013, Zhejiang, China
| | - Yue Yang
- Department of Reproductive Physiology, Zhejiang Academy of Medical Sciences, Hangzhou 310013, Zhejiang, China
| | - Baiping Mao
- The Mary M. Woldford Laboratory for Male Contraceptive Research, Center for Biomedical Research, Population Council, 1230 York Ave, New York, NY 10065, United States
| | - C. Yan Cheng
- The Mary M. Woldford Laboratory for Male Contraceptive Research, Center for Biomedical Research, Population Council, 1230 York Ave, New York, NY 10065, United States
| | - Ya Ni
- Department of Reproductive Physiology, Zhejiang Academy of Medical Sciences, Hangzhou 310013, Zhejiang, China
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13
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Jenardhanan P, Panneerselvam M, Mathur PP. Computational Methods Involved in Evaluating the Toxicity of the Reproductive Toxicants in Sertoli Cell. Methods Mol Biol 2019; 1748:253-277. [PMID: 29453577 DOI: 10.1007/978-1-4939-7698-0_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The Sertoli cell, the somatic component of seminiferous tubule, provides nutritional support and immunological protection and supports overall growth and division of germ cells. Cytoskeletons, junction proteins, and kinases in Sertoli cells are prime targets for reproductive toxicants and other environmental contaminants. Among the varied targets, the kinases that are crucial for regulating varied activities in spermatogenesis such as assembly/disassembly of blood-testis barrier and apical ES and those that are involved in conferring polarity are highly targeted. In an attempt to study the effect of toxicants on these kinases, the present chapter deals with computational methodology concerning their three-dimensional structure prediction, identification of inhibitors, and understanding of conformational changes induced by these inhibitors.
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Affiliation(s)
| | | | - Premendu P Mathur
- Department of Biochemistry and Molecular Biology, Pondicherry University, Puducherry, India. .,KIIT University, Bhubaneshwar, Odisha, India.
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14
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Fão L, Mota SI, Rego AC. c-Src regulates Nrf2 activity through PKCδ after oxidant stimulus. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:686-698. [PMID: 30685263 DOI: 10.1016/j.bbamcr.2019.01.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 11/19/2018] [Accepted: 01/23/2019] [Indexed: 12/29/2022]
Abstract
Nrf2 is the main transcription factor involved in expression of cell defense enzymes, which is altered in several oxidant-related disorders. Cytosolic Nrf2 activation is modulated through phosphorylation by PKCδ, an enzyme controlled by Src tyrosine kinases. Of relevance, Src family members are involved in numerous cellular processes and regulated by hydrogen peroxide (H2O2). In this study we analysed the activation of cell survival-related signaling proteins, c-Src and Nrf2, and the influence of c-Src kinase on Nrf2 regulation after exposure to H2O2. Acute exposure of HT22 mouse hippocampal neural cells to H2O2 increased c-Src and Nrf2 phosphorylation/activation at Tyr416 and Ser40, respectively. Nrf2 phosphorylation at Ser40, its nuclear accumulation and transcriptional activity involving heme oxygenase-1 (HO-1) expression were dependent on c-Src kinase activation. Moreover, modulation of Nrf2 activity by c-Src occurred through PKCδ phosphorylation at Tyr311. We demonstrate, for the first time, c-Src-mediated regulation of Nrf2 transcriptional activity, via PKCδ activation, following an acute H2O2 stimulus. This work supports that the c-Src/PKCδ/Nrf2 pathway may constitute a novel signaling pathway stimulated by H2O2 and a potential target for the treatment of diseases involving redox deregulation.
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Affiliation(s)
- Lígia Fão
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal; Institute of Biochemistry, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Sandra I Mota
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal; Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal
| | - A Cristina Rego
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal; Institute of Biochemistry, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.
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15
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Guo K, Bu X, Yang C, Cao X, Bian H, Zhu Q, Zhu J, Zhang D. Treatment Effects of the Second-Generation Tyrosine Kinase Inhibitor Dasatinib on Autoimmune Arthritis. Front Immunol 2019; 9:3133. [PMID: 30687331 PMCID: PMC6335562 DOI: 10.3389/fimmu.2018.03133] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 12/18/2018] [Indexed: 01/06/2023] Open
Abstract
Rheumatoid arthritis (RA) is a multifactorial autoimmune disease that primarily manifests as persistent synovitis and progressive joint destruction. Imatinib exhibited a therapeutic effect in murine collagen-induced arthritis (CIA) via selective inhibition tyrosine kinases. The second-generation tyrosine kinase inhibitor dasatinib exhibits more durable hematological and cytogenetic effects and more potency compared to imatinib. However, the effect of dasatinib on CIA is poorly understood. The present study investigated the treatment effect of dasatinib on autoimmune arthritis. We demonstrated that dasatinib alleviated arthritis symptoms and histopathological destruction in CIA mice. Dasatinib treatment inhibited the production of proinflammatory cytokines including IL-1β, TNF-α, and IL-6, and promoted the production of the anti-inflammatory cytokine IL-10. Dasatinib treatment also suppressed the expression of anti-mouse CII antibodies including total IgG, IgG1, IgG2, and IgG2b, in CIA mice. We further demonstrated that dasatinib inhibited the migration and proliferation of fibroblast-like synoviocytes (FLS) from RA patients and promoted FLS apoptosis. The mRNA expression of MMP13, VEGF, FGF, and DKK1 was down-regulated in FLS treated with dasatinib. Our findings suggest that dasatinib exhibited treatment effects on CIA mice and that FLS are an important target cell of dasatinib treatment in autoimmune arthritis.
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Affiliation(s)
- Kai Guo
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China.,State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Xin Bu
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Chongfei Yang
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xiaorui Cao
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Huan Bian
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Qingsheng Zhu
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jinyu Zhu
- Department of Orthopaedics, Shenzhen University General Hospital, Shenzhen University Clinical Medical Academy, Shenzhen, China
| | - Dawei Zhang
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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16
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Xiao X, Ni Y, Yu C, Li L, Mao B, Yang Y, Zheng D, Silvestrini B, Cheng CY. Src family kinases (SFKs) and cell polarity in the testis. Semin Cell Dev Biol 2018; 81:46-53. [PMID: 29174914 PMCID: PMC5988912 DOI: 10.1016/j.semcdb.2017.11.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 11/20/2017] [Indexed: 01/02/2023]
Abstract
Non-receptor Src family kinases (SFKs), most notably c-Src and c-Yes, are recently shown to be expressed by Sertoli and/or germ cells in adult rat testes. Studies have shown that SFKs are involved in modulating the cell cytoskeletal function, and involved in endocytic vesicle-mediated protein endocytosis, transcytosis and/or recycling as well as intracellular protein degradation events. Furthermore, a knockdown to SFKs, in particular c-Yes, has shown to induce defects in spermatid polarity. These findings, coupled with emerging evidence in the field, thus prompt us to critically evaluate them to put forth a developing concept regarding the role of SFKs and cell polarity, which will become a basis to design experiments for future investigations.
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Affiliation(s)
- Xiang Xiao
- Zhejiang Academy of Medical Sciences, Hangzhou, Zhejiang 310013, China
- The Mary M. Wohlford Laboratory for Male Contraceptive Research, Center for Biomedical Research, Population Council, 1230 York Ave, New York, New York 10065
| | - Ya Ni
- Zhejiang Academy of Medical Sciences, Hangzhou, Zhejiang 310013, China
| | - Chenhuan Yu
- Zhejiang Academy of Medical Sciences, Hangzhou, Zhejiang 310013, China
| | - Linxi Li
- The Mary M. Wohlford Laboratory for Male Contraceptive Research, Center for Biomedical Research, Population Council, 1230 York Ave, New York, New York 10065
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzho, Zhejiang 325035, China
| | - Baiping Mao
- The Mary M. Wohlford Laboratory for Male Contraceptive Research, Center for Biomedical Research, Population Council, 1230 York Ave, New York, New York 10065
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzho, Zhejiang 325035, China
| | - Yue Yang
- Zhejiang Academy of Medical Sciences, Hangzhou, Zhejiang 310013, China
| | - Dongwang Zheng
- Zhejiang Academy of Medical Sciences, Hangzhou, Zhejiang 310013, China
| | | | - C. Yan Cheng
- The Mary M. Wohlford Laboratory for Male Contraceptive Research, Center for Biomedical Research, Population Council, 1230 York Ave, New York, New York 10065
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17
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Campello RS, Fátima LA, Barreto-Andrade JN, Lucas TF, Mori RC, Porto CS, Machado UF. Estradiol-induced regulation of GLUT4 in 3T3-L1 cells: involvement of ESR1 and AKT activation. J Mol Endocrinol 2017; 59:257-268. [PMID: 28729437 DOI: 10.1530/jme-17-0041] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 07/20/2017] [Indexed: 12/11/2022]
Abstract
Impaired insulin-stimulated glucose uptake involves reduced expression of the GLUT4 (solute carrier family 2 facilitated glucose transporter member 4, SLC2A4 gene). 17β-estradiol (E2) modulates SLC2A4/GLUT4 expression, but the involved mechanisms are unclear. Although E2 exerts biological effects by binding to estrogen receptors 1/2 (ESR1/2), which are nuclear transcriptional factors; extranuclear effects have also been proposed. We hypothesize that E2 regulates GLUT4 through an extranuclear ESR1 mechanism. Thus, we investigated the effects of E2 upon (1) subcellular distribution of ESRs and the proto-oncogene tyrosine-protein kinases (SRC) involvement; (2) serine/threonine-protein kinase (AKT) activation; (3) Slc2a4/GLUT4 expression and (4) GLUT4 subcellular distribution and glucose uptake in 3T3-L1 adipocytes. Differentiated 3T3-L1 adipocytes were cultivated or not with E2 for 24 h, and additionally treated or not with ESR1-selective agonist (PPT), ESR1-selective antagonist (MPP) or selective SRC inhibitor (PP2). Subcellular distribution of ESR1, ESR2 and GLUT4 was analyzed by immunocytochemistry; Slc2a4 mRNA and GLUT4 were quantified by qPCR and Western blotting, respectively; plasma membrane GLUT4 translocation and glucose uptake were analyzed under insulin stimulus for 20 min or not. E2 induced (1) translocation of ESR1, but not of ESR2, from nucleus to plasma membrane and AKT phosphorylation, effects mimicked by PPT and blocked by MPP and PP2; (2) increased Slc2a4/GLUT4 expression and (3) increased insulin-stimulated GLUT4 translocation and glucose uptake. In conclusion, E2 treatment promoted a SRC-mediated nucleus-plasma membrane shuttle of ESR1, and increased AKT phosphorylation, Slc2a4/GLUT4 expression and plasma membrane GLUT4 translocation; consequently, improving insulin-stimulated glucose uptake. These results unravel mechanisms through which estrogen improves insulin sensitivity.
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Affiliation(s)
- Raquel S Campello
- Department of Physiology and BiophysicsInstitute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Luciana A Fátima
- Department of Physiology and BiophysicsInstitute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - João Nilton Barreto-Andrade
- Department of Physiology and BiophysicsInstitute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Thais F Lucas
- Section of Experimental EndocrinologyDepartment of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Rosana C Mori
- Department of Physiology and BiophysicsInstitute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Catarina S Porto
- Section of Experimental EndocrinologyDepartment of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Ubiratan F Machado
- Department of Physiology and BiophysicsInstitute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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18
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Nakashima K, Uekita T, Yano S, Kikuchi JI, Nakanishi R, Sakamoto N, Fukumoto K, Nomoto A, Kawamoto K, Shibahara T, Yamaguchi H, Sakai R. Novel small molecule inhibiting CDCP1-PKCδ pathway reduces tumor metastasis and proliferation. Cancer Sci 2017; 108:1049-1057. [PMID: 28256037 PMCID: PMC5448658 DOI: 10.1111/cas.13218] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 02/23/2017] [Accepted: 02/24/2017] [Indexed: 12/11/2022] Open
Abstract
CUB domain‐containing protein‐1 (CDCP1) is a trans‐membrane protein predominantly expressed in various cancer cells and involved in tumor progression. CDCP1 is phosphorylated at tyrosine residues in the intracellular domain by Src family kinases and recruits PKCδ to the plasma membrane through tyrosine phosphorylation‐dependent association with the C2 domain of PKCδ, which in turn induces a survival signal in an anchorage‐independent condition. In this study, we used our cell‐free screening system to identify a small compound, glycoconjugated palladium complex (Pd‐Oqn), which significantly inhibited the interaction between the C2 domain of PKCδ and phosphorylated CDCP1. Immunoprecipitation assays demonstrated that Pd‐Oqn hindered the intercellular interaction of phosphorylated CDCP1 with PKCδ and also suppressed the phosphorylation of PKCδ but not that of ERK or AKT. In addition, Pd‐Oqn inhibited the colony formation of gastric adenocarcinoma 44As3 cells in soft agar as well as their invasion. In mouse models, Pd‐Oqn markedly reduced the peritoneal dissemination of gastric adenocarcinoma cells and the tumor growth of pancreatic cancer orthotopic xenografts. These results suggest that the novel compound Pd‐Oqn reduces tumor metastasis and growth by inhibiting the association between CDCP1 and PKCδ, thus potentially representing a promising candidate among therapeutic reagents targeting protein–protein interaction.
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Affiliation(s)
- Katsuhiko Nakashima
- Division of Refractory and Advanced Cancer, National Cancer Center Research Institute, Tokyo, Japan
| | - Takamasa Uekita
- Department of Applied Chemistry, National Defense Academy, Yokosuka, Japan
| | - Shigenobu Yano
- Graduate School of Materials Science, Nara Institute of Science and Technology, Nara, Japan
| | - Jun-Ichi Kikuchi
- Graduate School of Materials Science, Nara Institute of Science and Technology, Nara, Japan
| | - Ruri Nakanishi
- Division of Refractory and Advanced Cancer, National Cancer Center Research Institute, Tokyo, Japan
| | - Nozomi Sakamoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Osaka, Japan
| | - Keisuke Fukumoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Osaka, Japan
| | - Akihiro Nomoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Osaka, Japan
| | - Keisuke Kawamoto
- Department of Chemistry, Graduate School of Natural Science, Kanazawa University, Kanazawa, Japan
| | - Takashi Shibahara
- Department of Chemistry, Okayama University of Science, Okayama, Japan
| | - Hideki Yamaguchi
- Division of Refractory and Advanced Cancer, National Cancer Center Research Institute, Tokyo, Japan
| | - Ryuichi Sakai
- Division of Refractory and Advanced Cancer, National Cancer Center Research Institute, Tokyo, Japan.,Division of Biochemistry, Kitasato University School of Medicine, Kanagawa, Japan
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19
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Yang WR, Zhu FW, Zhang JJ, Wang Y, Zhang JH, Lu C, Wang XZ. PI3K/Akt Activated by GPR30 and Src Regulates 17β-Estradiol-Induced Cultured Immature Boar Sertoli Cells Proliferation. Reprod Sci 2016; 24:57-66. [DOI: 10.1177/1933719116649696] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Wei-Rong Yang
- College of Animal Science and Technology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Forage & Herbivore, Chongqing, China
| | - Feng-Wei Zhu
- College of Animal Science and Technology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Forage & Herbivore, Chongqing, China
| | - Jiao-Jiao Zhang
- College of Animal Science and Technology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Forage & Herbivore, Chongqing, China
| | - Yi Wang
- College of Animal Science and Technology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Forage & Herbivore, Chongqing, China
| | - Jia-Hua Zhang
- College of Animal Science and Technology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Forage & Herbivore, Chongqing, China
| | - Cheng Lu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Key Laboratory for Sericulture Functional Genomics and Biotechnology of Agricultural Ministry, Southwest University, Chongqing, China
| | - Xian-Zhong Wang
- College of Animal Science and Technology, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Forage & Herbivore, Chongqing, China
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20
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Chojnacka K, Hejmej A, Zarzycka M, Tworzydlo W, Bilinski S, Pardyak L, Kaminska A, Bilinska B. Flutamide induces alterations in the cell-cell junction ultrastructure and reduces the expression of Cx43 at the blood-testis barrier with no disturbance in the rat seminiferous tubule morphology. Reprod Biol Endocrinol 2016; 14:14. [PMID: 27036707 PMCID: PMC4818424 DOI: 10.1186/s12958-016-0144-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 02/17/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Present study was designed to establish a causal connection between changes in the cell-cell junction protein expression at the blood-testis barrier and alterations in the adult rat testis histology following an anti-androgen flutamide exposure. Particular emphasis was placed on the basal ectoplasmic specialization (ES) in the seminiferous epithelium and expression of gap junction protein, connexin 43 (Cx43). METHODS Flutamide (50 mg/kg body weight) was administered to male rats daily from 82 to 88 postnatal day. Testes from 90-day-old control and flutamide-exposed rats were used for all analyses. Testis morphology was analyzed using light and electron microscopy. Gene and protein expressions were analyzed by real-time RT-PCR and Western blotting, respectively, protein distribution by immunohistochemistry, and steroid hormone concentrations by radioimmunoassay. RESULTS Seminiferous epithelium of both groups of rats displayed normal histology without any loss of germ cells. In accord, no difference in the apoptosis and proliferation level was found between control and treated groups. As shown by examination of semi-thin and ultrathin sections, cell surface occupied by the basal ES connecting neighboring Sertoli cells and the number of gap and tight junctions coexisting with the basal ES were apparently reduced in flutamide-treated rats. Moreover, the appearance of unconventional circular ES suggests enhanced internalization and degradation of the basal ES. These changes were accompanied by decreased Cx43 and ZO-1 expression (p < 0.01) and a loss of linear distribution of these proteins at the region of the blood-testis barrier. On the other hand, Cx43 expression in the interstitial tissue of flutamide-treated rats increased (p < 0.01), which could be associated with Leydig cell hypertrophy. Concomitantly, both intratesticular testosterone and estradiol concentrations were elevated (p < 0.01), but testosterone to estradiol ratio decreased significantly (p < 0.05) in flutamide-treated rats compared to the controls. CONCLUSIONS Short-term treatment with flutamide applied to adult rats exerts its primary effect on the basal ES, coexisting junctional complexes and their constituent proteins Cx43 and ZO-1, without any apparent morphological alterations in the seminiferous epithelium. In the interstitial compartment, however, short-term exposure leads to both histological and functional changes of the Leydig cells.
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Affiliation(s)
- Katarzyna Chojnacka
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, Krakow, Poland
| | - Anna Hejmej
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, Krakow, Poland
| | - Marta Zarzycka
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, Krakow, Poland
| | - Waclaw Tworzydlo
- Department of Developmental Biology and Morphology of Invertebrates, Institute of Zoology, Jagiellonian University, Krakow, Poland
| | - Szczepan Bilinski
- Department of Developmental Biology and Morphology of Invertebrates, Institute of Zoology, Jagiellonian University, Krakow, Poland
| | - Laura Pardyak
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, Krakow, Poland
| | - Alicja Kaminska
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, Krakow, Poland
| | - Barbara Bilinska
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, Krakow, Poland
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21
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França LR, Hess RA, Dufour JM, Hofmann MC, Griswold MD. The Sertoli cell: one hundred fifty years of beauty and plasticity. Andrology 2016; 4:189-212. [PMID: 26846984 DOI: 10.1111/andr.12165] [Citation(s) in RCA: 259] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 12/30/2015] [Accepted: 01/04/2016] [Indexed: 12/18/2022]
Abstract
It has been one and a half centuries since Enrico Sertoli published the seminal discovery of the testicular 'nurse cell', not only a key cell in the testis, but indeed one of the most amazing cells in the vertebrate body. In this review, we begin by examining the three phases of morphological research that have occurred in the study of Sertoli cells, because microscopic anatomy was essentially the only scientific discipline available for about the first 75 years after the discovery. Biochemistry and molecular biology then changed all of biological sciences, including our understanding of the functions of Sertoli cells. Immunology and stem cell biology were not even topics of science in 1865, but they have now become major issues in our appreciation of Sertoli cell's role in spermatogenesis. We end with the universal importance and plasticity of function by comparing Sertoli cells in fish, amphibians, and mammals. In these various classes of vertebrates, Sertoli cells have quite different modes of proliferation and epithelial maintenance, cystic vs. tubular formation, yet accomplish essentially the same function but in strikingly different ways.
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Affiliation(s)
- L R França
- Laboratory of Cellular Biology, Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.,National Institute for Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | - R A Hess
- Reproductive Biology and Toxicology, Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois, Urbana, IL, USA
| | - J M Dufour
- Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - M C Hofmann
- Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - M D Griswold
- Center for Reproductive Biology, School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, WA, USA
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