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Chauhan M, Singh K, Chongtham C, A G A, Sharma P. miR-449a Mediated Repression of the Cell Cycle Machinery Prevents Neuronal Apoptosis. J Biol Chem 2024:107698. [PMID: 39173945 DOI: 10.1016/j.jbc.2024.107698] [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: 04/27/2024] [Revised: 07/18/2024] [Accepted: 08/08/2024] [Indexed: 08/24/2024] Open
Abstract
Aberrant activation of the cell cycle of terminally-differentiated neurons results in their apoptosis and is known to contribute to neuronal loss in various neurodegenerative disorders like Alzheimer's Disease. However, the mechanisms that regulate Cell Cycle Related Neuronal Apoptosis (CRNA) are poorly understood. We identified several miRNA that are dysregulated in neurons from a transgenic APP/PS1 mouse model for AD (TgAD). Several of these miRNA are known to and/or are predicted to target cell cycle-related genes. Detailed investigation on miR-449a revealed: a. it promotes neuronal differentiation by suppressing the neuronal cell cycle; b. its expression in cortical neurons was impaired in response to amyloid peptide Aβ42; c. loss of its expression resulted in aberrant activation of the cell cycle leading to apoptosis. miR-449a may prevent CRNA by targeting cyclin D1 and protein phosphatase CDC25A, which are important for G1-S transition. Importantly, the lentiviral mediated delivery of miR-449a in TgAD mouse brain significantly reverted the defects in learning and memory, which are associated with AD.
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Affiliation(s)
- Monika Chauhan
- Eukaryotic Gene Expression Laboratory, National Institute of Immunology, New Delhi-110067, India
| | - Komal Singh
- Eukaryotic Gene Expression Laboratory, National Institute of Immunology, New Delhi-110067, India
| | - Chen Chongtham
- Molecular Genetics Laboratory, National Institute of Immunology, New Delhi-110067, India
| | - Aneeshkumar A G
- Molecular Genetics Laboratory, National Institute of Immunology, New Delhi-110067, India
| | - Pushkar Sharma
- Eukaryotic Gene Expression Laboratory, National Institute of Immunology, New Delhi-110067, India.
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2
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Dalal S, Ramirez-Gomez J, Sharma B, Devara D, Kumar S. MicroRNAs and synapse turnover in Alzheimer's disease. Ageing Res Rev 2024; 99:102377. [PMID: 38871301 DOI: 10.1016/j.arr.2024.102377] [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: 04/23/2024] [Revised: 05/31/2024] [Accepted: 06/06/2024] [Indexed: 06/15/2024]
Abstract
Alzheimer's Disease (AD) is a progressive neurodegenerative disorder characterized by the accumulation of amyloid-beta plaques and neurofibrillary tangles in the brain, leading to synaptic dysfunction and cognitive decline. Healthy synapses are the crucial for normal brain function, memory restoration and other neurophysiological function. Synapse loss and synaptic dysfunction are two primary events that occur during AD initiation. Synapse lifecycle and/or synapse turnover is divided into five key stages and several sub-stages such as synapse formation, synapse assembly, synapse maturation, synapse transmission and synapse termination. In normal state, the synapse turnover is regulated by various biological and molecular factors for a healthy neurotransmission. In AD, the different stages of synapse turnover are affected by AD-related toxic proteins. MicroRNAs (miRNAs) have emerged as critical regulators of gene expression and have been implicated in various neurological diseases, including AD. Deregulation of miRNAs modulate the synaptic proteins and affect the synapse turnover at different stages. In this review, we discussed the key milestones of synapse turnover and how they are affected in AD. Further, we discussed the involvement of miRNAs in synaptic turnover, focusing specifically on their role in AD pathogenesis. We also emphasized the regulatory mechanisms by which miRNAs modulate the synaptic turnover stages in AD. Current studies will help to understand the synaptic life-cycle and role of miRNAs in each stage that is deregulated in AD, further allowing for a better understanding of the pathogenesis of devastating disease.
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Affiliation(s)
- Sarthak Dalal
- Center of Emphasis in Neuroscience, Department of Molecular and Translational Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX, USA
| | - Jaime Ramirez-Gomez
- Center of Emphasis in Neuroscience, Department of Molecular and Translational Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX, USA
| | - Bhupender Sharma
- Center of Emphasis in Neuroscience, Department of Molecular and Translational Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX, USA
| | - Davin Devara
- Center of Emphasis in Neuroscience, Department of Molecular and Translational Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX, USA
| | - Subodh Kumar
- Center of Emphasis in Neuroscience, Department of Molecular and Translational Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX, USA; L. Frederick Francis Graduate School of Biomedicael Sciences, Texas Tech University Health Sciences Center, El Paso, TX, USA.
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3
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Fremuntova Z, Hanusova ZB, Soukup J, Mosko T, Matej R, Holada K. Simple 3D spheroid cell culture model for studies of prion infection. Eur J Neurosci 2024; 60:4437-4452. [PMID: 38887188 DOI: 10.1111/ejn.16444] [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: 08/28/2023] [Revised: 05/15/2024] [Accepted: 06/03/2024] [Indexed: 06/20/2024]
Abstract
Mouse neuronal CAD 5 cell line effectively propagates various strains of prions. Previously, we have shown that it can also be differentiated into the cells morphologically resembling neurons. Here, we demonstrate that CAD 5 cells chronically infected with prions undergo differentiation under the same conditions. To make our model more realistic, we triggered the differentiation in the 3D culture created by gentle rocking of CAD 5 cell suspension. Spheroids formed within 1 week and were fully developed in less than 3 weeks of culture. The mature spheroids had a median size of ~300 μm and could be cultured for up to 12 weeks. Increased expression of differentiation markers GAP 43, tyrosine hydroxylase, β-III-tubulin and SNAP 25 supported the differentiated status of the spheroid cells. The majority of them were found in the G0/G1 phase of the cell cycle, which is typical for differentiated cells. Moreover, half of the PrPC on the cell membrane was N-terminally truncated, similarly as in differentiated CAD 5 adherent cells. Finally, we demonstrated that spheroids could be created from prion-infected CAD 5 cells. The presence of prions was verified by immunohistochemistry, western blot and seed amplification assay. We also confirmed that the spheroids can be infected with the prions de novo. Our 3D culture model of differentiated CAD 5 cells is low cost, easy to produce and cultivable for weeks. We foresee its possible use in the testing of anti-prion compounds and future studies of prion formation dynamics.
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Affiliation(s)
- Zuzana Fremuntova
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Zdenka Backovska Hanusova
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jakub Soukup
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Tibor Mosko
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Radoslav Matej
- Department of Pathology and Molecular Medicine, Third Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic
| | - Karel Holada
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University, Prague, Czech Republic
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Ma C, Gurkan-Cavusoglu E. A comprehensive review of computational cell cycle models in guiding cancer treatment strategies. NPJ Syst Biol Appl 2024; 10:71. [PMID: 38969664 PMCID: PMC11226463 DOI: 10.1038/s41540-024-00397-7] [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: 01/26/2024] [Accepted: 06/24/2024] [Indexed: 07/07/2024] Open
Abstract
This article reviews the current knowledge and recent advancements in computational modeling of the cell cycle. It offers a comparative analysis of various modeling paradigms, highlighting their unique strengths, limitations, and applications. Specifically, the article compares deterministic and stochastic models, single-cell versus population models, and mechanistic versus abstract models. This detailed analysis helps determine the most suitable modeling framework for various research needs. Additionally, the discussion extends to the utilization of these computational models to illuminate cell cycle dynamics, with a particular focus on cell cycle viability, crosstalk with signaling pathways, tumor microenvironment, DNA replication, and repair mechanisms, underscoring their critical roles in tumor progression and the optimization of cancer therapies. By applying these models to crucial aspects of cancer therapy planning for better outcomes, including drug efficacy quantification, drug discovery, drug resistance analysis, and dose optimization, the review highlights the significant potential of computational insights in enhancing the precision and effectiveness of cancer treatments. This emphasis on the intricate relationship between computational modeling and therapeutic strategy development underscores the pivotal role of advanced modeling techniques in navigating the complexities of cell cycle dynamics and their implications for cancer therapy.
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Affiliation(s)
- Chenhui Ma
- Department of Electrical, Computer and Systems Engineering, Case Western Reserve University, Cleveland, OH, USA.
| | - Evren Gurkan-Cavusoglu
- Department of Electrical, Computer and Systems Engineering, Case Western Reserve University, Cleveland, OH, USA
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Kiran NS, Yashaswini C, Chatterjee A. Zebrafish: A trending model for gut-brain axis investigation. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 270:106902. [PMID: 38537435 DOI: 10.1016/j.aquatox.2024.106902] [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: 02/05/2024] [Revised: 03/04/2024] [Accepted: 03/13/2024] [Indexed: 04/13/2024]
Abstract
Zebrafish (Danio rerio) has ascended as a pivotal model organism in the realm of gut-brain axis research, principally owing to its high-throughput experimental capabilities and evolutionary alignment with mammals. The inherent transparency of zebrafish embryos facilitates unprecedented real-time imaging, affording unparalleled insights into the intricate dynamics of bidirectional communication between the gut and the brain. Noteworthy are the structural and functional parallels shared between the zebrafish and mammalian gut-brain axis components, rendering zebrafish an invaluable model for probing the molecular and cellular intricacies inherent in this critical physiological interaction. Recent investigations in zebrafish have systematically explored the impact of gut microbiota on neurodevelopment, behaviour, and disease susceptibility, underscoring the model's prowess in unravelling the multifaceted influence of microbial communities in shaping gut-brain interactions. Leveraging the genetic manipulability inherent in zebrafish, researchers have embarked on targeted explorations of specific pathways and molecular mechanisms, providing nuanced insights into the fundamental functioning of the gut-brain axis. This comprehensive review synthesizes pivotal findings and methodological advancements derived from zebrafish-based gut-brain axis research, accentuating the model's potential to significantly advance our understanding of this complex interplay. Furthermore, it underscores the translational significance of these insights, offering promising avenues for the identification of therapeutic targets in neuro-gastroenterological disorders and psychiatric conditions intricately linked with gut-brain interactions.
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Affiliation(s)
- Neelakanta Sarvashiva Kiran
- Department of Biotechnology, School of Applied Sciences, REVA University, Kattigenahalli, Yelahanka, Bengaluru, 560064, Karnataka, India
| | - Chandrashekar Yashaswini
- Department of Biotechnology, School of Applied Sciences, REVA University, Kattigenahalli, Yelahanka, Bengaluru, 560064, Karnataka, India
| | - Ankita Chatterjee
- Department of Biotechnology, School of Applied Sciences, REVA University, Kattigenahalli, Yelahanka, Bengaluru, 560064, Karnataka, India.
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Israr F, Masood Ul Hasan S, Hussain M, Qazi FUR, Hasan A. Investigating In Situ Expression of Neurotrophic Factors and Partner Proteins in Irreversible Pulpitis. J Endod 2023; 49:1668-1675. [PMID: 37660765 DOI: 10.1016/j.joen.2023.08.017] [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: 04/09/2023] [Revised: 07/30/2023] [Accepted: 08/26/2023] [Indexed: 09/05/2023]
Abstract
INTRODUCTION In situ assessments of neurotrophic factors and their associated molecular partners have not been explored to date, particularly in humans. The present investigation aimed to explore the expressional dysregulation of neurotrophic factors (nerve growth factor [NGF], brain derived neurotrophic factor [BDNF], and NT4/5), their receptors (TrkA and TrkB), and their modulators (USP36 and Nedd4-2) directly in irreversibly inflamed human pulp tissues. METHODS Forty samples each of healthy and irreversibly inflamed pulp were extirpated for the study. Immunohistochemical examinations were carried out for the anatomic changes and expression of neurotrophic factors and partner proteins. Expression was digitally quantified using the IHC profiler module of ImageJ and deduced as optical density. Statistical analyses were carried out by GraphPad Prism. RESULTS Decrease in nuclear and vessel diameters was observed in irreversibly inflamed pulp tissues. NGF and BDNF were found to be significantly upregulated in symptomatic irreversible pulpitis (SIP), whereas no significant difference was observed in the expression of TrkA and TrkB. Expression of Nedd4-2, USP36, and TrkA was found positively correlated with the NGF in healthy pulp tissues. However, in SIP, positive correlation was only observed between the expression of USP36 and NGF. Among the ligands, BDNF expression was found positively correlated with NGF in healthy pulp but not with NT4/5. In the case of SIP, no correlation was observed between any neurotrophic factors. CONCLUSIONS Upregulation of NGF, BDNF, USP36 and Nedd4-2 in SIP indicates dysregulation in the molecular events underlying the disease biology and could be exploited as potential markers for the disease diagnosis.
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Affiliation(s)
- Fatima Israr
- Dr Ishrat ul Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi, Pakistan; Bioinformatics and Molecular Medicine Research Group, Dow Research Institute of Biotechnology and Biomedical Sciences, Dow College of Biotechnology, Dow University of Health Sciences, Karachi, Pakistan
| | - Syed Masood Ul Hasan
- Dr Ishrat ul Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi, Pakistan; Bioinformatics and Molecular Medicine Research Group, Dow Research Institute of Biotechnology and Biomedical Sciences, Dow College of Biotechnology, Dow University of Health Sciences, Karachi, Pakistan
| | - Mushtaq Hussain
- Bioinformatics and Molecular Medicine Research Group, Dow Research Institute of Biotechnology and Biomedical Sciences, Dow College of Biotechnology, Dow University of Health Sciences, Karachi, Pakistan.
| | - Fazal Ur Rehman Qazi
- Dr Ishrat ul Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi, Pakistan
| | - Arshad Hasan
- Dow Dental College, Dow University of Health Sciences, Karachi, Pakistan
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Yu S, Liao B, Zhu W, Peng D, Wu F. Accurate prediction and key protein sequence feature identification of cyclins. Brief Funct Genomics 2023; 22:411-419. [PMID: 37118891 DOI: 10.1093/bfgp/elad014] [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: 01/14/2023] [Revised: 03/03/2023] [Accepted: 03/17/2023] [Indexed: 04/30/2023] Open
Abstract
Cyclin proteins are a group of proteins that activate the cell cycle by forming complexes with cyclin-dependent kinases. Identifying cyclins correctly can provide key clues to understanding the function of cyclins. However, due to the low similarity between cyclin protein sequences, the advancement of a machine learning-based approach to identify cycles is urgently needed. In this study, cyclin protein sequence features were extracted using the profile-based auto-cross covariance method. Then the features were ranked and selected with maximum relevance-maximum distance (MRMD) 1.0 and MRMD2.0. Finally, the prediction model was assessed through 10-fold cross-validation. The computational experiments showed that the best protein sequence features generated by MRMD1.0 could correctly predict 98.2% of cyclins using the random forest (RF) classifier, whereas seven-dimensional key protein sequence features identified with MRMD2.0 could correctly predict 96.1% of cyclins, which was superior to previous studies on the same dataset both in terms of dimensionality and performance comparisons. Therefore, our work provided a valuable tool for identifying cyclins. The model data can be downloaded from https://github.com/YUshunL/cyclin.
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Affiliation(s)
- Shaoyou Yu
- Key Laboratory of Computational Science and Application of Hainan Province, Haikou, China
- Key Laboratory of Data Science and Intelligence Education, Hainan Normal University, Ministry of Education, Haikou, China
- School of Mathematics and Statistics, Hainan Normal University, Haikou, China
| | - Bo Liao
- Key Laboratory of Computational Science and Application of Hainan Province, Haikou, China
- Key Laboratory of Data Science and Intelligence Education, Hainan Normal University, Ministry of Education, Haikou, China
- School of Mathematics and Statistics, Hainan Normal University, Haikou, China
| | - Wen Zhu
- Key Laboratory of Computational Science and Application of Hainan Province, Haikou, China
- Key Laboratory of Data Science and Intelligence Education, Hainan Normal University, Ministry of Education, Haikou, China
- School of Mathematics and Statistics, Hainan Normal University, Haikou, China
| | - Dejun Peng
- Key Laboratory of Computational Science and Application of Hainan Province, Haikou, China
- Key Laboratory of Data Science and Intelligence Education, Hainan Normal University, Ministry of Education, Haikou, China
- School of Mathematics and Statistics, Hainan Normal University, Haikou, China
| | - Fangxiang Wu
- Key Laboratory of Computational Science and Application of Hainan Province, Haikou, China
- Key Laboratory of Data Science and Intelligence Education, Hainan Normal University, Ministry of Education, Haikou, China
- School of Mathematics and Statistics, Hainan Normal University, Haikou, China
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8
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Nagare S, Lokhande KB, Swamy KV. Docking and simulation studies on cyclin D/CDK4 complex for targeting cell cycle arrest in cancer using flavanone and its congener. J Mol Model 2023; 29:90. [PMID: 36881272 DOI: 10.1007/s00894-023-05496-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 02/27/2023] [Indexed: 03/08/2023]
Abstract
Flavanone compounds are naturally occurring phytochemicals present in most of citrus fruits reported to be a potential anticancer moiety as it majorly participates in the inhibition of the cell cycle, apoptosis, and angiogenesis. Because of poor bioavailability, natural flavanones were not used as therapeutic targets so flavanone congeners were prepared by modifying at B-functional group using compound libraries such as PubChem Database. Cyclin-dependent kinase is primarily activating the cell cycle and potentiating the M phase, in order to control the cell cycle in cancer cyclin-dependent pathway was targeted and potential cyclin D/CDK4 receptor protein was retrieved from Protein Data Bank (PDBID:2W9Z). The binding site was determined using FlexX docking. Flavanone and its congeners were docked against the 2W9Z receptor protein with the docking software FlexX. For validation of docking results, molecular dynamics simulations of the best-fitting molecule were carried out using Desmond Package. Noncovalent interactions like hydrogen bonds, electrostatic interaction, and Van der walls potentials for stable conformations were calculated. Thus, upon docking and molecular dynamics studies, we discovered the potential flavanone derivatives such as Flavanone 20, Flavanone 25, and Flavanone 29, will become a potential drug target in controlling cell cycle arrest and may become a futuristic candidate in targeting cancer.
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Affiliation(s)
- Sagar Nagare
- School of Biotechnology and Bioinformatics, D.Y. Patil Deemed to Be University, CBD Belapur, Navi Mumbai, Maharashtra, India, 400614.,Bioinformatics Research Laboratory, Dr. D.Y. Patil Biotechnology and Bioinformatics Institute, Dr. D.Y. Patil Vidyapeeth, Tathawade Campus, Tathawade, Pune, Maharashtra, India, 411033
| | - Kiran Bharat Lokhande
- Bioinformatics Research Laboratory, Dr. D.Y. Patil Biotechnology and Bioinformatics Institute, Dr. D.Y. Patil Vidyapeeth, Tathawade Campus, Tathawade, Pune, Maharashtra, India, 411033.,Translational Bioinformatics and Computational Genomics Research Lab, Department of Life Sciences, Shiv Nadar Institution of Eminence, Gautam Buddha Nagar, UP, 201314, India
| | - K Venkateswara Swamy
- Bioinformatics and Drug Discovery Group, MIT School of Bioengineering Science and Research, MIT Art, Design and Technology University, Pune, Maharashtra, India, 412201.
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Xuyang L, Cristina LM, Laura MA, Xu P. A clade of RHH proteins ubiquitous in Sulfolobales and their viruses regulates cell cycle progression. Nucleic Acids Res 2023; 51:1724-1739. [PMID: 36727447 PMCID: PMC9976892 DOI: 10.1093/nar/gkad011] [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: 11/17/2022] [Revised: 12/30/2022] [Accepted: 01/29/2023] [Indexed: 02/03/2023] Open
Abstract
Cell cycle regulation is crucial for all living organisms and is often targeted by viruses to facilitate their own propagation, yet cell cycle progression control is largely underexplored in archaea. In this work, we reveal a cell cycle regulator (aCcr1) carrying a ribbon-helix-helix (RHH) domain and ubiquitous in the Thermoproteota of the order Sulfolobales and their viruses. Overexpression of several aCcr1 members including gp21 of rudivirus SIRV2 and its host homolog SiL_0190 of Saccharolobus islandicus LAL14/1 results in impairment of cell division, evidenced by growth retardation, cell enlargement and an increase in cellular DNA content. Additionally, both gp21 and SiL_0190 can bind to the motif AGTATTA conserved in the promoter of several genes involved in cell division, DNA replication and cellular metabolism thereby repressing or inducing their transcription. Our results suggest that aCcr1 silences cell division and drives progression to the S-phase in Sulfolobales, a function exploited by viruses to facilitate viral propagation.
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Affiliation(s)
- Li Xuyang
- Department of Biology, University of Copenhagen, Ole Maaløes Vej 5, 2200 Copenhagen N, Denmark
| | - Lozano-Madueño Cristina
- Department of Biology, University of Copenhagen, Ole Maaløes Vej 5, 2200 Copenhagen N, Denmark
| | - Martínez-Alvarez Laura
- Department of Biology, University of Copenhagen, Ole Maaløes Vej 5, 2200 Copenhagen N, Denmark
| | - Peng Xu
- Department of Biology, University of Copenhagen, Ole Maaløes Vej 5, 2200 Copenhagen N, Denmark
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Dolati M, Tafvizi F, Salehipour M, Komeili Movahed T, Jafari P. Biogenic copper oxide nanoparticles from Bacillus coagulans induced reactive oxygen species generation and apoptotic and anti-metastatic activities in breast cancer cells. Sci Rep 2023; 13:3256. [PMID: 36828883 PMCID: PMC9958044 DOI: 10.1038/s41598-023-30436-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 02/23/2023] [Indexed: 02/26/2023] Open
Abstract
The present study examined the anticancer capabilities of Bacillus coagulans supernatant-produced copper oxide nanoparticles (BC-CuONPs) on MCF-7 and SKBR3 cancer cells. The X-ray diffraction, ultraviolet-visible spectroscopy, Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, field-emission scanning electron microscopy, energy-dispersive X-ray, dynamic light scattering, and zeta potential techniques were used to characterize BC-CuONPs. This study also investigated the cellular and molecular processes of NPs' anti-proliferative and apoptotic properties on human breast cancer cells and compared them to the commercial pharmaceutical tamoxifen. The size of the spherical NP was from 5 to 47 nm with negative zeta potential. The MTT results showed the great cytotoxic effect of BC-CuONPs against breast cancer cells. The BC-CuONPs inhibited the growth of breast cancer cells in a time- and dose-dependent manner. The up-regulation of BCL2-associated X (BAX), cyclin dependent kinase inhibitor 1A (P21), Caspase 3 (CASP3), and Caspase 9 (CASP9), the down-regulation of BCL2 apoptosis regulator (BCL2), Annexin V-FITC/propidium iodide, and reactive oxygen species (ROS) generation results suggested that BC-CuONPs had a significant apoptotic impact when compared to the control. Scratch tests and vascular endothelial growth factor receptor gene (VEGF) down-regulation demonstrated that BC-CuONPs had anti-metastatic activity. The cell cycle analysis and down-regulation of Cyclin D1 (CCND1) and cyclin dependent kinase 4 (CDK4) revealed that cancer cells were arrested in the sub-G1 phase. Finally, the results showed that the secondary metabolites in the supernatant of Bacillus coagulans could form CuONPs, and biogenic BC-CuONPs showed anti-metastasis and anticancer properties on breast cancer cells while having less adverse effects on normal cells. Therefore, the synthesized CuONPs using B. coagulans supernatant can be shown as a potential candidate for a new therapeutic strategy in cancer management.
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Affiliation(s)
- Masoumeh Dolati
- Department of Biology, Parand Branch, Islamic Azad University, Parand, Iran
| | - Farzaneh Tafvizi
- Department of Biology, Parand Branch, Islamic Azad University, Parand, Iran.
| | - Masoud Salehipour
- Department of Biology, Parand Branch, Islamic Azad University, Parand, Iran
| | | | - Parvaneh Jafari
- Microbiology Department, Faculty of Science, Arak Branch, Islamic Azad University, Arak, Iran
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Yang Y, Liu J, Fu X, Zhou F, Zhang S, Zhang X, Huang Q, Krupovic M, She Q, Ni J, Shen Y. A novel RHH family transcription factor aCcr1 and its viral homologs dictate cell cycle progression in archaea. Nucleic Acids Res 2023; 51:1707-1723. [PMID: 36715325 PMCID: PMC9976878 DOI: 10.1093/nar/gkad006] [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: 11/16/2022] [Revised: 12/27/2022] [Accepted: 01/03/2023] [Indexed: 01/31/2023] Open
Abstract
Cell cycle regulation is of paramount importance for all forms of life. Here, we report that a conserved and essential cell cycle-specific transcription factor (designated as aCcr1) and its viral homologs control cell division in Sulfolobales. We show that the transcription level of accr1 reaches peak during active cell division (D-phase) subsequent to the expression of CdvA, an archaea-specific cell division protein. Cells over-expressing the 58-aa-long RHH (ribbon-helix-helix) family cellular transcription factor as well as the homologs encoded by large spindle-shaped viruses Acidianus two-tailed virus (ATV) and Sulfolobus monocaudavirus 3 (SMV3) display significant growth retardation and cell division failure, manifesting as enlarged cells with multiple chromosomes. aCcr1 over-expression results in downregulation of 17 genes (>4-fold), including cdvA. A conserved motif, aCcr1-box, located between the TATA-binding box and the translation initiation site of 13 out of the 17 highly repressed genes, is critical for aCcr1 binding. The aCcr1-box is present in the promoters and 5' UTRs of cdvA genes across Sulfolobales, suggesting that aCcr1-mediated cdvA repression is an evolutionarily conserved mechanism by which archaeal cells dictate cytokinesis progression, whereas their viruses take advantage of this mechanism to manipulate the host cell cycle.
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Affiliation(s)
- Yunfeng Yang
- CRISPR and Archaea Biology Research Centre, Microbial Technology Institute and State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, P. R. China
| | - Junfeng Liu
- Correspondence may also be addressed to Junfeng Liu.
| | - Xiaofei Fu
- CRISPR and Archaea Biology Research Centre, Microbial Technology Institute and State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, P. R. China
| | - Fan Zhou
- CRISPR and Archaea Biology Research Centre, Microbial Technology Institute and State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, P. R. China
| | - Shuo Zhang
- CRISPR and Archaea Biology Research Centre, Microbial Technology Institute and State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, P. R. China
| | - Xuemei Zhang
- CRISPR and Archaea Biology Research Centre, Microbial Technology Institute and State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, P. R. China
| | - Qihong Huang
- CRISPR and Archaea Biology Research Centre, Microbial Technology Institute and State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, P. R. China
| | - Mart Krupovic
- Institut Pasteur, Université Paris Cité, CNRS UMR6047, Archaeal Virology Unit, Paris, 75015, France
| | - Qunxin She
- CRISPR and Archaea Biology Research Centre, Microbial Technology Institute and State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, P. R. China
| | - Jinfeng Ni
- CRISPR and Archaea Biology Research Centre, Microbial Technology Institute and State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, P. R. China
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12
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von Knebel Doeberitz N, Paech D, Sturm D, Pusch S, Turcan S, Saunthararajah Y. Changing paradigms in oncology: Toward noncytotoxic treatments for advanced gliomas. Int J Cancer 2022; 151:1431-1446. [PMID: 35603902 PMCID: PMC9474618 DOI: 10.1002/ijc.34131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/12/2022] [Accepted: 05/13/2022] [Indexed: 11/25/2022]
Abstract
Glial-lineage malignancies (gliomas) recurrently mutate and/or delete the master regulators of apoptosis p53 and/or p16/CDKN2A, undermining apoptosis-intending (cytotoxic) treatments. By contrast to disrupted p53/p16, glioma cells are live-wired with the master transcription factor circuits that specify and drive glial lineage fates: these transcription factors activate early-glial and replication programs as expected, but fail in their other usual function of forcing onward glial lineage-maturation-late-glial genes have constitutively "closed" chromatin requiring chromatin-remodeling for activation-glioma-genesis disrupts several epigenetic components needed to perform this work, and simultaneously amplifies repressing epigenetic machinery instead. Pharmacologic inhibition of repressing epigenetic enzymes thus allows activation of late-glial genes and terminates glioma self-replication (self-replication = replication without lineage-maturation), independent of p53/p16/apoptosis. Lineage-specifying master transcription factors therefore contrast with p53/p16 in being enriched in self-replicating glioma cells, reveal a cause-effect relationship between aberrant epigenetic repression of late-lineage programs and malignant self-replication, and point to specific epigenetic targets for noncytotoxic glioma-therapy.
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Affiliation(s)
| | - Daniel Paech
- Division of RadiologyGerman Cancer Research Center (DKFZ)HeidelbergGermany
- Department of NeuroradiologyBonn University HospitalBonnGermany
| | - Dominik Sturm
- Hopp Children's Cancer Center (KiTZ) HeidelbergHeidelbergGermany
- Division of Pediatric Glioma Research, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK)HeidelbergGermany
- Department of Pediatric Oncology, Hematology & ImmunologyHeidelberg University HospitalHeidelbergGermany
| | - Stefan Pusch
- Department of NeuropathologyInstitute of Pathology, Ruprecht‐Karls‐University HeidelbergHeidelbergGermany
- German Cancer Consortium (DKTK), Clinical Cooperation Unit (CCU) Neuropathology, German Cancer Research Center (DKFZ)HeidelbergGermany
| | - Sevin Turcan
- Department of NeurologyHeidelberg University HospitalHeidelbergGermany
| | - Yogen Saunthararajah
- Department of Translational Hematology and Oncology ResearchTaussig Cancer Institute, Cleveland ClinicClevelandOhioUSA
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13
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Stobdan T, Sahoo D, Haddad GG. A Boolean approach for novel hypoxia-related gene discovery. PLoS One 2022; 17:e0273524. [PMID: 36006949 PMCID: PMC9409593 DOI: 10.1371/journal.pone.0273524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/09/2022] [Indexed: 11/19/2022] Open
Abstract
Hypoxia plays a major role in the etiology and pathogenesis of most of the leading causes of morbidity and mortality, whether cardiovascular diseases, cancer, respiratory diseases or stroke. Despite active research on hypoxia-signaling pathways, the understanding of regulatory mechanisms, especially in specific tissues, still remain elusive. With the accessibility of thousands of potentially diverse genomic datasets, computational methods are utilized to generate new hypotheses. Here we utilized Boolean implication relationship, a powerful method to probe symmetrically and asymmetrically related genes, to identify novel hypoxia related genes. We used a well-known hypoxia-responsive gene, VEGFA, with very large human expression datasets (n = 25,955) to identify novel hypoxia-responsive candidate gene/s. Further, we utilized in-vitro analysis using human endothelial cells exposed to 1% O2 environment for 2, 8, 24 and 48 hours to validate top candidate genes. Out of the top candidate genes (n = 19), 84% genes were previously reported as hypoxia related, validating our results. However, we identified FAM114A1 as a novel candidate gene significantly upregulated in the endothelial cells at 8, 24 and 48 hours of 1% O2 environment. Additional evidence, particularly the localization of intronic miRNA and numerous HREs further support and strengthen our finding. Current results on FAM114A1 provide an example demonstrating the utility of powerful computational methods, like Boolean implications, in playing a major role in hypothesis building and discovery.
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Affiliation(s)
- Tsering Stobdan
- Department of Pediatrics, Division of Respiratory Medicine, University of California San Diego, La Jolla, California, United States of America
| | - Debashis Sahoo
- Department of Pediatrics, Division of Respiratory Medicine, University of California San Diego, La Jolla, California, United States of America
- Department of Computer Science and Engineering, University of California San Diego, La Jolla, California, United States of America
| | - Gabriel G. Haddad
- Department of Pediatrics, Division of Respiratory Medicine, University of California San Diego, La Jolla, California, United States of America
- Department of Neurosciences, University of California San Diego, La Jolla, California, United States of America
- Rady Children’s Hospital, San Diego, California, United States of America
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14
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Frangiamone M, Alonso-Garrido M, Font G, Cimbalo A, Manyes L. Pumpkin extract and fermented whey individually and in combination alleviated AFB1- and OTA-induced alterations on neuronal differentiation invitro. Food Chem Toxicol 2022; 164:113011. [PMID: 35447289 DOI: 10.1016/j.fct.2022.113011] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/04/2022] [Accepted: 04/09/2022] [Indexed: 02/06/2023]
Abstract
Food and feed are daily exposed to mycotoxin contamination which effects may be counteracted by functional compounds like carotenoids and fermented whey. Among mycotoxins, the most toxic and studied are aflatoxin B1 (AFB1) and ochratoxin A (OTA), which neurotoxicity is not well reported. Therefore, SH-SY5Y human neuroblastoma cells ongoing differentiation were exposed during 7 days to digested bread extracts contained pumpkin and fermented whey, individually and in combination, along with AFB1 and OTA and their combination, in order to evaluate their presumed effects on neuronal differentiation. The immunofluorescence analysis of βIII-tubulin and dopamine markers pointed to OTA as the most damaging treatment for cell differentiation. Cell cycle analysis reported the highest significant differences for OTA-contained bread compared to the control in phase G0/G1. Lastly, RNA extraction was performed and gene expression was analyzed by qPCR. The selected genes were related to neuronal differentiation and cell cycle. The addition of functional ingredients in breads not only enhancing the expression of neuronal markers, but also induced an overall improvement of gene expression compromised by mycotoxins activity. These data confirm that in vitro neuronal differentiation may be impaired by AFB1 and OTA-exposure, which could be modulated by bioactive compounds naturally found in diet.
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Affiliation(s)
- Massimo Frangiamone
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, Universitat de València, Vicent Andrés Estellés s/n, 46100, Burjassot, Spain
| | - Manuel Alonso-Garrido
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, Universitat de València, Vicent Andrés Estellés s/n, 46100, Burjassot, Spain
| | - Guillermina Font
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, Universitat de València, Vicent Andrés Estellés s/n, 46100, Burjassot, Spain
| | - Alessandra Cimbalo
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, Universitat de València, Vicent Andrés Estellés s/n, 46100, Burjassot, Spain.
| | - Lara Manyes
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, Universitat de València, Vicent Andrés Estellés s/n, 46100, Burjassot, Spain
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15
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ASCL1 phosphorylation and ID2 upregulation are roadblocks to glioblastoma stem cell differentiation. Sci Rep 2022; 12:2341. [PMID: 35149717 PMCID: PMC8837758 DOI: 10.1038/s41598-022-06248-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 01/20/2022] [Indexed: 12/15/2022] Open
Abstract
The growth of glioblastoma (GBM), one of the deadliest adult cancers, is fuelled by a subpopulation of stem/progenitor cells, which are thought to be the source of resistance and relapse after treatment. Re-engagement of a latent capacity of these cells to re-enter a trajectory resulting in cell differentiation is a potential new therapeutic approach for this devastating disease. ASCL1, a proneural transcription factor, plays a key role in normal brain development and is also expressed in a subset of GBM cells, but fails to engage a full differentiation programme in this context. Here, we investigated the barriers to ASCL1-driven differentiation in GBM stem cells. We see that ASCL1 is highly phosphorylated in GBM stem cells where its expression is compatible with cell proliferation. However, overexpression of a form of ASCL1 that cannot be phosphorylated on Serine–Proline sites drives GBM cells down a neuronal lineage and out of cell cycle more efficiently than its wild-type counterpart, an effect further enhanced by deletion of the inhibitor of differentiation ID2, indicating mechanisms to reverse the block to GBM cell differentiation.
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16
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Isik M, Eylem CC, Haciefendioglu T, Yildirim E, Sari B, Nemutlu E, Emregul E, Okesola BO, Derkus B. Mechanically robust hybrid hydrogels of photo-crosslinkable gelatin and laminin-mimetic peptide amphiphiles for neural induction. Biomater Sci 2021; 9:8270-8284. [PMID: 34766605 DOI: 10.1039/d1bm01350e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Self-assembling bio-instructive materials that can provide a biomimetic tissue microenvironment with the capability to regulate cellular behaviors represent an attractive platform in regenerative medicine. Herein, we develop a hybrid neuro-instructive hydrogel that combines the properties of a photo-crosslinkable gelatin methacrylate (GelMA) and self-assembling peptide amphiphiles (PAs) bearing a laminin-derived neuro-inductive epitope (PA-GSR). Electrostatic interaction and ultraviolet light crosslinking mechanisms were combined to create dual-crosslinked hybrid hydrogels with tunable stiffness. Spectroscopic, microscopic and theoretical techniques show that the cationic PA-GSR(+) electrostatically co-assembles with the negatively charged GelMA to create weak hydrogels with hierarchically ordered microstructures, which were further photo-crosslinked to create mechanically robust hydrogels. Dynamic oscillatory rheology and micromechanical testing show that photo-crosslinking of the co-assembled GelMA and PA-GSR(+) hydrogel results in robust hydrogels displaying improved stiffness. Gene expression analysis was used to show that GelMA/PA-GSR(+) hydrogels can induce human mesenchymal stem cells (hMSCs) into neural-lineage cells and supports neural-lineage specification of neuroblast-like cells (SH-SY5Y) in a growth-factor-free manner. Also, metabolomics analysis suggests that the hydrogel alters the metabolite profiles in the cells by affecting multiple molecular pathways. This work highlights a new approach for the design of PA-based hybrid hydrogels with robust mechanical properties and biological functionalities for nerve tissue regeneration.
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Affiliation(s)
- Melis Isik
- Department of Chemistry, Faculty of Science, Ankara University, 06560 Ankara, Turkey.
| | - Cemil Can Eylem
- Analytical Chemistry Division, Faculty of Pharmacy, Hacettepe University, 06230 Ankara, Turkey
| | | | - Erol Yildirim
- Chemistry Department, Middle East Technical University, 06800 Ankara, Turkey.,Department of Polymer Science and Technology, Middle East Technical University, 06800 Ankara, Turkey.,Department of Micro and Nanotechnology, Middle East Technical University, 06800 Ankara, Turkey
| | - Buse Sari
- Department of Chemistry, Faculty of Science, Ankara University, 06560 Ankara, Turkey. .,Stem Cell Research Lab, Department of Chemistry, Faculty of Science, Ankara University, 06560 Ankara, Turkey
| | - Emirhan Nemutlu
- Analytical Chemistry Division, Faculty of Pharmacy, Hacettepe University, 06230 Ankara, Turkey.,Bioanalytic and Omics Laboratory, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Emel Emregul
- Department of Chemistry, Faculty of Science, Ankara University, 06560 Ankara, Turkey.
| | - Babatunde O Okesola
- Institute of Bioengineering, Queen Mary University of London, London, E1 4NS, UK. .,School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Burak Derkus
- Department of Chemistry, Faculty of Science, Ankara University, 06560 Ankara, Turkey. .,Stem Cell Research Lab, Department of Chemistry, Faculty of Science, Ankara University, 06560 Ankara, Turkey
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17
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Tao L, Moreno‐Smith M, Ibarra‐García‐Padilla R, Milazzo G, Drolet NA, Hernandez BE, Oh YS, Patel I, Kim JJ, Zorman B, Patel T, Kamal AHM, Zhao Y, Hicks J, Vasudevan SA, Putluri N, Coarfa C, Sumazin P, Perini G, Parchem RJ, Uribe RA, Barbieri E. CHAF1A Blocks Neuronal Differentiation and Promotes Neuroblastoma Oncogenesis via Metabolic Reprogramming. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2005047. [PMID: 34365742 PMCID: PMC8498874 DOI: 10.1002/advs.202005047] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 06/04/2021] [Indexed: 05/28/2023]
Abstract
Neuroblastoma (NB) arises from oncogenic disruption of neural crest (NC) differentiation. Treatment with retinoic acid (RA) to induce differentiation has improved survival in some NB patients, but not all patients respond, and most NBs eventually develop resistance to RA. Loss of the chromatin modifier chromatin assembly factor 1 subunit p150 (CHAF1A) promotes NB cell differentiation; however, the mechanism by which CHAF1A drives NB oncogenesis has remained unexplored. This study shows that CHAF1A gain-of-function supports cell malignancy, blocks neuronal differentiation in three models (zebrafish NC, human NC, and human NB), and promotes NB oncogenesis. Mechanistically, CHAF1A upregulates polyamine metabolism, which blocks neuronal differentiation and promotes cell cycle progression. Targeting polyamine synthesis promotes NB differentiation and enhances the anti-tumor activity of RA. The authors' results provide insight into the mechanisms that drive NB oncogenesis and suggest a rapidly translatable therapeutic approach (DFMO plus RA) to enhance the clinical efficacy of differentiation therapy in NB patients.
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18
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Berghausen EM, Janssen W, Vantler M, Gnatzy-Feik LL, Krause M, Behringer A, Joseph C, Zierden M, Freyhaus HT, Klinke A, Baldus S, Alcazar MA, Savai R, Pullamsetti SS, Wong DW, Boor P, Zhao JJ, Schermuly RT, Rosenkranz S. Disrupted PI3K subunit p110α signaling protects against pulmonary hypertension and reverses established disease in rodents. J Clin Invest 2021; 131:136939. [PMID: 34596056 DOI: 10.1172/jci136939] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 08/18/2021] [Indexed: 11/17/2022] Open
Abstract
Enhanced signaling via RTKs in pulmonary hypertension (PH) impedes current treatment options because it perpetuates proliferation and apoptosis resistance of pulmonary arterial smooth muscle cells (PASMCs). Here, we demonstrated hyperphosphorylation of multiple RTKs in diseased human vessels and increased activation of their common downstream effector phosphatidylinositol 3'-kinase (PI3K), which thus emerged as an attractive therapeutic target. Systematic characterization of class IA catalytic PI3K isoforms identified p110α as the key regulator of pathogenic signaling pathways and PASMC responses (proliferation, migration, survival) downstream of multiple RTKs. Smooth muscle cell-specific genetic ablation or pharmacological inhibition of p110α prevented onset and progression of pulmonary hypertension (PH) as well as right heart hypertrophy in vivo and even reversed established vascular remodeling and PH in various animal models. These effects were attributable to both inhibition of vascular proliferation and induction of apoptosis. Since this pathway is abundantly activated in human disease, p110α represents a central target in PH.
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Affiliation(s)
- Eva M Berghausen
- Department of Cardiology, Heart Center at the University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC) and.,Cologne Cardiovascular Research Center (CCRC), University of Cologne, Cologne, Germany
| | - Wiebke Janssen
- Max-Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,University of Giessen and Marburg Lung Center (UGMLC), and German Centre for Lung Research (DZL), Giessen, Germany
| | - Marius Vantler
- Department of Cardiology, Heart Center at the University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC) and.,Cologne Cardiovascular Research Center (CCRC), University of Cologne, Cologne, Germany
| | - Leoni L Gnatzy-Feik
- Department of Cardiology, Heart Center at the University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC) and.,Cologne Cardiovascular Research Center (CCRC), University of Cologne, Cologne, Germany
| | - Max Krause
- Department of Cardiology, Heart Center at the University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC) and.,Cologne Cardiovascular Research Center (CCRC), University of Cologne, Cologne, Germany
| | - Arnica Behringer
- Department of Cardiology, Heart Center at the University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC) and
| | - Christine Joseph
- Department of Cardiology, Heart Center at the University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC) and
| | - Mario Zierden
- Department of Cardiology, Heart Center at the University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC) and.,Cologne Cardiovascular Research Center (CCRC), University of Cologne, Cologne, Germany
| | - Henrik Ten Freyhaus
- Department of Cardiology, Heart Center at the University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC) and.,Cologne Cardiovascular Research Center (CCRC), University of Cologne, Cologne, Germany
| | - Anna Klinke
- Department of Cardiology, Heart Center at the University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC) and.,Cologne Cardiovascular Research Center (CCRC), University of Cologne, Cologne, Germany
| | - Stephan Baldus
- Department of Cardiology, Heart Center at the University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC) and.,Cologne Cardiovascular Research Center (CCRC), University of Cologne, Cologne, Germany
| | - Miguel A Alcazar
- Center for Molecular Medicine Cologne (CMMC) and.,Institute for Lung Health, member of the DZL, UGMLC, Giessen, Germany.,Department of Pediatric and Adolecent Medicine, University of Cologne, Cologne, Germany
| | - Rajkumar Savai
- Max-Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | | | - Dickson Wl Wong
- Institute of Pathology, RWTH Aachen University Hospital, Aachen, Germany
| | - Peter Boor
- Institute of Pathology, RWTH Aachen University Hospital, Aachen, Germany
| | - Jean J Zhao
- Dana-Farber Cancer Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Ralph T Schermuly
- Max-Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,University of Giessen and Marburg Lung Center (UGMLC), and German Centre for Lung Research (DZL), Giessen, Germany
| | - Stephan Rosenkranz
- Department of Cardiology, Heart Center at the University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC) and.,Cologne Cardiovascular Research Center (CCRC), University of Cologne, Cologne, Germany
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19
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3D-Printed Collagen-Based Waveform Microfibrous Scaffold for Periodontal Ligament Reconstruction. Int J Mol Sci 2021; 22:ijms22147725. [PMID: 34299345 PMCID: PMC8307958 DOI: 10.3390/ijms22147725] [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: 06/23/2021] [Revised: 07/09/2021] [Accepted: 07/13/2021] [Indexed: 01/13/2023] Open
Abstract
Reconstruction of the periodontal ligament (PDL) to fulfill functional requirement remains a challenge. This study sought to develop a biomimetic microfibrous system capable of withstanding the functional load to assist PDL regeneration. Collagen-based straight and waveform microfibers to guide PDL cell growth were prepared using an extrusion-based bioprinter, and a laminar flow-based bioreactor was used to generate fluidic shear stress. PDL cells were seeded on the respective microfibers with 0 or 6 dynes/cm2 fluidic shear stress for 1–4 h. The viability, morphology, adhesion pattern, and gene expression levels of PDL cells were assessed. The results revealed that upon bioprinting optimization, collagen-based microfibers were successfully fabricated. The straight microfibers were 189.9 ± 11.44 μm wide and the waveform microfibers were 235.9 ± 11.22 μm wide. Under 6 dynes/cm2 shear stress, PDL cells were successfully seeded, and cytoskeleton expansion, adhesion, and viability were greater. Cyclin D, E-cadherin, and periostin were upregulated on the waveform microfibers. In conclusion, 3D-printed collagen-based waveform microfibers preserved PDL cell viability and exhibited an enhanced tendency to promote healing and regeneration under shear stress. This approach is promising for the development of a guiding scaffold for PDL regeneration.
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20
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Zulfiqar H, Yuan SS, Huang QL, Sun ZJ, Dao FY, Yu XL, Lin H. Identification of cyclin protein using gradient boost decision tree algorithm. Comput Struct Biotechnol J 2021; 19:4123-4131. [PMID: 34527186 PMCID: PMC8346528 DOI: 10.1016/j.csbj.2021.07.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/15/2021] [Accepted: 07/15/2021] [Indexed: 12/12/2022] Open
Abstract
Cyclin proteins are capable to regulate the cell cycle by forming a complex with cyclin-dependent kinases to activate cell cycle. Correct recognition of cyclin proteins could provide key clues for studying their functions. However, their sequences share low similarity, which results in poor prediction for sequence similarity-based methods. Thus, it is urgent to construct a machine learning model to identify cyclin proteins. This study aimed to develop a computational model to discriminate cyclin proteins from non-cyclin proteins. In our model, protein sequences were encoded by seven kinds of features that are amino acid composition, composition of k-spaced amino acid pairs, tri peptide composition, pseudo amino acid composition, geary correlation, normalized moreau-broto autocorrelation and composition/transition/distribution. Afterward, these features were optimized by using analysis of variance (ANOVA) and minimum redundancy maximum relevance (mRMR) with incremental feature selection (IFS) technique. A gradient boost decision tree (GBDT) classifier was trained on the optimal features. Five-fold cross-validated results showed that our model would identify cyclins with an accuracy of 93.06% and AUC value of 0.971, which are higher than the two recent studies on the same data.
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Affiliation(s)
- Hasan Zulfiqar
- School of Life Science and Technology and Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Shi-Shi Yuan
- School of Life Science and Technology and Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Qin-Lai Huang
- School of Life Science and Technology and Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Zi-Jie Sun
- School of Life Science and Technology and Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Fu-Ying Dao
- School of Life Science and Technology and Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Xiao-Long Yu
- School of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - Hao Lin
- School of Life Science and Technology and Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
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21
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Nandakumar S, Rozich E, Buttitta L. Cell Cycle Re-entry in the Nervous System: From Polyploidy to Neurodegeneration. Front Cell Dev Biol 2021; 9:698661. [PMID: 34249947 PMCID: PMC8264763 DOI: 10.3389/fcell.2021.698661] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 05/19/2021] [Indexed: 12/15/2022] Open
Abstract
Terminally differentiated cells of the nervous system have long been considered to be in a stable non-cycling state and are often considered to be permanently in G0. Exit from the cell cycle during development is often coincident with the differentiation of neurons, and is critical for neuronal function. But what happens in long lived postmitotic tissues that accumulate cell damage or suffer cell loss during aging? In other contexts, cells that are normally non-dividing or postmitotic can or re-enter the cell cycle and begin replicating their DNA to facilitate cellular growth in response to cell loss. This leads to a state called polyploidy, where cells contain multiple copies of the genome. A growing body of literature from several vertebrate and invertebrate model organisms has shown that polyploidy in the nervous system may be more common than previously appreciated and occurs under normal physiological conditions. Moreover, it has been found that neuronal polyploidization can play a protective role when cells are challenged with DNA damage or oxidative stress. By contrast, work over the last two and a half decades has discovered a link between cell-cycle reentry in neurons and several neurodegenerative conditions. In this context, neuronal cell cycle re-entry is widely considered to be aberrant and deleterious to neuronal health. In this review, we highlight historical and emerging reports of polyploidy in the nervous systems of various vertebrate and invertebrate organisms. We discuss the potential functions of polyploidization in the nervous system, particularly in the context of long-lived cells and age-associated polyploidization. Finally, we attempt to reconcile the seemingly disparate associations of neuronal polyploidy with both neurodegeneration and neuroprotection.
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Affiliation(s)
| | | | - Laura Buttitta
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, United States
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22
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A Novel Methodology Using Dexamethasone to Induce Neuronal Differentiation in the CNS-Derived Catecholaminergic CAD Cells. Cell Mol Neurobiol 2021; 42:2337-2353. [PMID: 34059943 DOI: 10.1007/s10571-021-01109-z] [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: 10/29/2020] [Accepted: 05/27/2021] [Indexed: 10/21/2022]
Abstract
The Cath.a-differentiated (CAD) cell line is a central nervous system-derived catecholaminergic cell line originating from tyrosine hydroxylase (TH)-producing neurons located around the locus coeruleus area of the mouse brain. CAD cells have been used as an in vitro model for cellular and molecular studies due to their ability to differentiate under serum-free media conditions. However, the lack of serum-derived survival factors, limits the longevity for differentiated CAD cells to be maintained in healthy conditions; thereby, limiting their use in long-term culture studies. Here, we present a novel differentiation method that utilizes dexamethasone (Dex), a synthetic glucocorticoid receptor agonist. Specifically, we discovered that the addition of 100 µM of Dex into the 1% fetal bovine serum (FBS)-supplemented media effectively induced neuronal differentiation of CAD cells, as characterized by neurite formation and elongation. Dex-differentiated CAD cells exited the cell cycle, stopped proliferating, extended the neurites, and expressed neuronal markers. These effects were dependent on the glucocorticoid receptors (GR) as they were abolished by GR knockdown. Importantly, Dex-differentiated CAD cells showed longer survival duration than serum-free differentiated CAD cells. In addition, RNA-sequencing and qPCR data demonstrate that several genes involved in proliferation, neuronal differentiation, and survival pathways were differentially expressed in the Dex-differentiated cells. This is the first study to reveal Dex as a novel differentiation methodology used to generate postmitotic neuronal CAD cells, which may be utilized as an in vitro neuronal model for cellular and molecular neurobiology research.
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23
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WDR81 regulates adult hippocampal neurogenesis through endosomal SARA-TGFβ signaling. Mol Psychiatry 2021; 26:694-709. [PMID: 30531936 PMCID: PMC7850971 DOI: 10.1038/s41380-018-0307-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 10/09/2018] [Accepted: 11/12/2018] [Indexed: 01/05/2023]
Abstract
Adult hippocampal neurogenesis, a process considered important for hippocampal function, is regulated at multiple molecular levels. Mutations in the gene encoding the WD40 repeat-containing protein WDR81 are associated with neurological disorders, including cerebellar ataxia, mental retardation, quadrupedal locomotion syndrome (CAMRQ2), and microcephaly. In this study, we show that ablation of WDR81 in adult neural progenitor cells (aNPCs) markedly reduced adult hippocampal neurogenesis and impaired hippocampus-dependent learning. WDR81 suppresses endosomal PtdIns3P synthesis, likely by inhibiting the assembly of the PI3K-III complex. In the absence of WDR81, endosomal PtdIns3P levels are greatly elevated, leading to endosomal persistence of the PtdIns3P-binding protein SARA and consequently hyperactivation of SARA-dependent TGFβ signaling. Inhibition of PI3K-III activity or suppression of SARA-dependent TGFβ signaling markedly ameliorated the defective adult neurogenesis in WDR81-deficient mice. Taken together, these findings not only uncover the requirement for the WDR81-SARA-TGFβ axis in adult hippocampal neurogenesis, but also suggest that defective adult hippocampal neurogenesis contributes to the etiology of WDR81-related neurological diseases.
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Liu K, Zhang X, Xie L, Deng M, Chen H, Song J, Long J, Li X, Luo J. Lupeol and its derivatives as anticancer and anti-inflammatory agents: Molecular mechanisms and therapeutic efficacy. Pharmacol Res 2020; 164:105373. [PMID: 33316380 DOI: 10.1016/j.phrs.2020.105373] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/17/2020] [Accepted: 12/03/2020] [Indexed: 02/06/2023]
Abstract
Lupeol is a natural triterpenoid that widely exists in edible fruits and vegetables, and medicinal plants. In the last decade, a plethora of studies on the pharmacological activities of lupeol have been conducted and have demonstrated that lupeol possesses an extensive range of pharmacological activities such as anticancer, antioxidant, anti-inflammatory, and antimicrobial activities. Pharmacokinetic studies have indicated that absorption of lupeol by animals was rapid despite its nonpolar characteristics, and lupeol belongs to class II BCS (biopharmaceutics classification system) compounds. Moreover, the bioactivities of some isolated or synthesized lupeol derivatives have been investigated, and these results showed that, with modification to C-3 or C-19, some derivatives exhibit stronger activities, e.g., antiprotozoal or anticancer activity. This review aims to summarize the advances in pharmacological and pharmacokinetic studies of lupeol in the last decade with an emphasis on its anticancer and anti-inflammatory activities, as well as the research progress of lupeol derivatives thus far, to provide researchers with the latest information, point out the limitations of relevant research at the current stage and the aspects that should be strengthened in future research.
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Affiliation(s)
- Kai Liu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Xumin Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Long Xie
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Mao Deng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Huijuan Chen
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Jiawen Song
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Jiaying Long
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Xiaofang Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China.
| | - Jia Luo
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China.
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25
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Shen L, Zhang P, Wang J, Ji P. Tac2-N serves an oncogenic role and promotes drug resistance in human gastric cancer cells. Exp Ther Med 2020; 20:113. [PMID: 32989391 PMCID: PMC7517536 DOI: 10.3892/etm.2020.9241] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 05/29/2020] [Indexed: 12/25/2022] Open
Abstract
Gastric cancer is one of the most common types of malignancy worldwide. Tac2-N (TC2N) has been reported to serve as either an oncogene or tumor suppressor in numerous different types of cancer; however, the role of TC2N in gastric cancer remains poorly understood. The present study aimed to investigate the role of TC2N in gastric cancer and reveal its regulatory mechanism. A Cell Counting Kit-8 assay was used to analyze the cell proliferation rate, while wound healing and Transwell Matrigel assays were performed to determine the cell migratory and invasive abilities, respectively. Cell cycle distribution was determined by flow cytometric analysis, and the expression levels of TC2N, P-glycoprotein (P-gp), cyclin D1, CDK4, cyclin E1, MMP2, MMP9 and N-Myc downstream regulated gene 1 were analyzed using reverse transcription-quantitative PCR or western blotting. Bioinformatics analysis revealed a high expression of TC2N in patients with gastric cancer. The experimental results revealed that TC2N expression levels were significantly unregulated in gastric cancer cell lines. The knockdown of TC2N in AGS cells significantly inhibited the cell proliferation rate and induced cell cycle arrest at the G0/G1 phase, while downregulating cyclin E1, cyclin D1 and CDK4 expression levels. The knockdown of TC2N also inhibited cell migration and invasion. Furthermore, the knockdown of TC2N improved the sensitivity of AGS cells to cisplatin, paclitaxel and 5-fluorouracil, and downregulated the protein expression levels of P-gp. By contrast, TC2N overexpression exerted the opposite effects in AGS cells. In conclusion, the findings of the present study indicated that the genetic knockdown of TC2N may inhibit cell proliferation, migration and invasion, while inducing cell cycle arrest in the G1/S phase and reversing the drug resistance of AGS cells, which may be partly through inhibiting P-gp expression levels. Thus, TC2N may serve as a novel diagnostic marker and therapeutic target for patients with gastric cancer.
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Affiliation(s)
- Lei Shen
- Department of Oncology, The Third People's Hospital of Hefei, Hefei, Anhui 230051, P.R. China
| | - Pingping Zhang
- Department of Physiology, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Jianbing Wang
- Department of Oncology, The Third People's Hospital of Hefei, Hefei, Anhui 230051, P.R. China
| | - Peng Ji
- Department of Magnetic Resonance, The Third People's Hospital of Hefei, Hefei, Anhui 230051, P.R. China
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26
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Han X, Zhang X, Wang Q, Wang L, Yu S. Antitumor potential of Hedyotis diffusa Willd: A systematic review of bioactive constituents and underlying molecular mechanisms. Biomed Pharmacother 2020; 130:110735. [PMID: 34321173 DOI: 10.1016/j.biopha.2020.110735] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/30/2020] [Accepted: 09/07/2020] [Indexed: 02/09/2023] Open
Abstract
Cancer is a major cause of death in the world. Chemotherapy can extend the life of cancer patients to some extent, but the quality of life is reduced. Therefore, the quest for more efficient and less toxic medication strategies is still at the forefront of current research. Hedyotis diffusa Willd (HDW), a Chinese herb medicine, has received great attention in the past two decades and has been well documented in clinics for antitumor activity in a variety of human cancers. This review discussed a total of 58 different kinds of active antitumor components isolated from HDW, including iridoids, flavonoids, flavonol glycosides, anthraquinones, phenolic acids, and their derivatives, sterols, and volatile oils. Their antitumor activities include inhibition of tumor cell proliferation, induction of tumor cell apoptosis and tumor angiogenesis, regulation of the host immune response, anti-inflammatory and antioxidant, and protective autophagy. Besides, we provide up-to-date and systematic evidence for HDW antitumor activities and the possible underlying molecular mechanisms and reference for further development of novel drugs and dosage formulation in control of human cancers.
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Affiliation(s)
- Xinru Han
- Department of Pharmacy, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250013, China
| | - Xiang Zhang
- Department of Pharmacy, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250013, China
| | - Qian Wang
- Department of Pharmacy, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250013, China
| | - Lu Wang
- Department of Pharmacy, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250013, China.
| | - Shuwen Yu
- Department of Pharmacy, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250013, China.
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27
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Non-coding RNAs: emerging players in cardiomyocyte proliferation and cardiac regeneration. Basic Res Cardiol 2020; 115:52. [PMID: 32748089 PMCID: PMC7398957 DOI: 10.1007/s00395-020-0816-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 07/22/2020] [Indexed: 02/07/2023]
Abstract
Soon after birth, the regenerative capacity of the mammalian heart is lost, cardiomyocytes withdraw from the cell cycle and demonstrate a minimal proliferation rate. Despite improved treatment and reperfusion strategies, the uncompensated cardiomyocyte loss during injury and disease results in cardiac remodeling and subsequent heart failure. The promising field of regenerative medicine aims to restore both the structure and function of damaged tissue through modulation of cellular processes and regulatory mechanisms involved in cardiac cell cycle arrest to boost cardiomyocyte proliferation. Non-coding RNAs (ncRNAs), such as microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs) are functional RNA molecules with no protein-coding function that have been reported to engage in cardiac regeneration and repair. In this review, we summarize the current understanding of both the biological functions and molecular mechanisms of ncRNAs involved in cardiomyocyte proliferation. Furthermore, we discuss their impact on the structure and contractile function of the heart in health and disease and their application for therapeutic interventions.
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SOX7 is involved in polyphyllin D-induced G0/G1 cell cycle arrest through down-regulation of cyclin D1. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2020; 70:191-200. [PMID: 31955140 DOI: 10.2478/acph-2020-0017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/06/2019] [Indexed: 01/19/2023]
Abstract
The incidence of mortality of prostate cancer (PCa) has been an uptrend in recent years. Our previous study showed that the sex-determining region Y-box 7 (SOX7) was low-expressed and served as a tumor suppressor in PCa cells. Here, we describe the effects of polyphyllin D (PD) on proliferation and cell cycle modifications of PCa cells, and whether SOX7 participates in this process. PC-3 cells were cultured in complete medium containing PD for 12, 24, and 48 h. MTT assay was used to investigate the cytotoxic effects of PD. Cell cycle progression was analyzed using propidium iodide (PI) staining, and protein levels were assayed by Western blot analysis. Our results showed low expression of SOX7 in PCa tissues/cells compared to their non-tumorous counterparts/RWPE-1 cells. Moreover, PD inhibited the proliferation of PC-3 cells in a dose- and time-dependent manner. PD induced G0/G1 cell cycle arrest, while co-treatment with short interfering RNA targeting SOX7 (siSOX7) had reversed this effect. PD downregulated SOX7, cyclin D1, cyclin-dependent kinase 4 (CDK4), and cyclin-dependent kinase 6 (CDK6) expressions in a dose-dependent manner, whereas co-treatment of siSOX7 and PD rescued the PD-inhibited cyclin D1 expression. However, no obvious changes were observed in CDK4 or CDK6 expression. These results indicate that SOX7 is involved in PD-induced PC-3 cell cycle arrest through down-regulation of cyclin D1.
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29
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Wu CY, Chan CH, Dubey NK, Wei HJ, Lu JH, Chang CC, Cheng HC, Ou KL, Deng WP. Highly Expressed FOXF1 Inhibit Non-Small-Cell Lung Cancer Growth via Inducing Tumor Suppressor and G1-Phase Cell-Cycle Arrest. Int J Mol Sci 2020; 21:ijms21093227. [PMID: 32370197 PMCID: PMC7246752 DOI: 10.3390/ijms21093227] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 12/13/2022] Open
Abstract
Cancer pathogenesis results from genetic alteration-induced high or low transcriptional programs, which become highly dependent on regulators of gene expression. However, their role in progressive regulation of non-small-cell lung cancer (NSCLC) and how these dependencies may offer opportunities for novel therapeutic options remain to be understood. Previously, we identified forkhead box F1 (FOXF1) as a reprogramming mediator which leads to stemnesss when mesenchymal stem cells fuse with lung cancer cells, and we now examine its effect on lung cancer through establishing lowly and highly expressing FOXF1 NSCLC engineered cell lines. Higher expression of FOXF1 was enabled in cell lines through lentiviral transduction, and their viability, proliferation, and anchorage-dependent growth was assessed. Flow cytometry and Western blot were used to analyze cellular percentage in cell-cycle phases and levels of cellular cyclins, respectively. In mice, tumorigenic behavior of FOXF1 was investigated. We found that FOXF1 was downregulated in lung cancer tissues and cancer cell lines. Cell proliferation and ability of migration, anchorage-independent growth, and transformation were inhibited in H441-FOXF1H and H1299-FOXF1H, with upregulated tumor suppressor p21 and suppressed cellular cyclins, leading to cell-cycle arrest at the gap 1 (G1) phase. H441-FOXF1H and H1299-FOXF1H injected mice showed reduced tumor size. Conclusively, highly expressing FOXF1 inhibited NSCLC growth via activating tumor suppressor p21 and G1 cell-cycle arrest, thus offering a potentially novel therapeutic strategy for lung cancer.
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Affiliation(s)
- Chia-Yu Wu
- Division of Oral and Maxillofacial Surgery, Department of Dentistry, Taipei Medical University Hospital, Taipei 11031, Taiwan;
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Chun-Hao Chan
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan; (C.-H.C.); (N.K.D.); (H.-J.W.); (J.-H.L.); (H.-C.C.)
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Navneet Kumar Dubey
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan; (C.-H.C.); (N.K.D.); (H.-J.W.); (J.-H.L.); (H.-C.C.)
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Hong-Jian Wei
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan; (C.-H.C.); (N.K.D.); (H.-J.W.); (J.-H.L.); (H.-C.C.)
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Jui-Hua Lu
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan; (C.-H.C.); (N.K.D.); (H.-J.W.); (J.-H.L.); (H.-C.C.)
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Chun-Chao Chang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei 11031, Taiwan;
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Hsin-Chung Cheng
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan; (C.-H.C.); (N.K.D.); (H.-J.W.); (J.-H.L.); (H.-C.C.)
- Department of Dentistry, Taipei Medical University Hospital, Taipei 11031, Taiwan
| | - Keng-Liang Ou
- Department of Dentistry, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan;
- 3D Global Biotech Inc., New Taipei City 22175, Taiwan
| | - Win-Ping Deng
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan; (C.-H.C.); (N.K.D.); (H.-J.W.); (J.-H.L.); (H.-C.C.)
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Graduate Institute of Basic Medicine, Fu Jen Catholic University, New Taipei City 24205, Taiwan
- Correspondence:
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30
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Jing T, Ma J, Zhao H, Zhang J, Jiang N, Ma D. MAST1 modulates neuronal differentiation and cell cycle exit via P27 in neuroblastoma cells. FEBS Open Bio 2020; 10:1104-1114. [PMID: 32291963 PMCID: PMC7262902 DOI: 10.1002/2211-5463.12860] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/13/2020] [Accepted: 04/09/2020] [Indexed: 12/22/2022] Open
Abstract
Although 19p13.13 microdeletion syndrome has been consistently associated with intellectual disability, overgrowth, and macrocephaly, the underlying mechanisms remain unclear. MAST1, a member of the microtubule‐associated serine/threonine kinase family, has been suggested as a potential candidate gene responsible for neurologic abnormalities in 19p13.13 microdeletion syndrome, but its role in nervous system development remains to be elucidated. Here, we investigated how MAST1 contributes to neuronal development. We report that MAST1 is upregulated during neuronal differentiation of the human neuroblastoma cell line, SH‐SY5Y. Inhibition of MAST1 expression by RNA interference attenuated neuronal differentiation of SH‐SY5Y cells. Cell cycle analyses revealed that MAST1‐depleted cells did not undergo cell cycle arrest after RA treatment. Consistent with this observation, the number of EdU‐positive cells significantly increased in MAST1 knockdown cells. Intriguingly, levels of P27, a cyclin‐dependent kinase inhibitor, were also increased during neuronal differentiation, and MAST1 knockdown reduced the expression of P27. Moreover, reduced neuronal differentiation caused by MAST1 depletion was rescued partially by P27 overexpression in SH‐SY5Y cells. Collectively, these results suggest that MAST1 influences nervous system development by affecting neuronal differentiation through P27.
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Affiliation(s)
- Tianrui Jing
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences & Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jing Ma
- Department of Facial Plastic and Reconstructive Surgery, ENT Institute, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Huanqiang Zhao
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
| | - Jin Zhang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences & Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Nan Jiang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences & Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Duan Ma
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences & Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China.,Children's Hospital, Fudan University, Shanghai, China
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31
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Sasaki K, Davies J, Doldán NG, Arao S, Ferdousi F, Szele FG, Isoda H. 3,4,5-Tricaffeoylquinic acid induces adult neurogenesis and improves deficit of learning and memory in aging model senescence-accelerated prone 8 mice. Aging (Albany NY) 2020; 11:401-422. [PMID: 30654329 PMCID: PMC6366991 DOI: 10.18632/aging.101748] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 12/26/2018] [Indexed: 12/11/2022]
Abstract
Caffeoylquinic acid (CQA) is a natural polyphenol with evidence of antioxidant and neuroprotective effects and prevention of deficits in spatial learning and memory. We studied the cognitive-enhancing effect of 3,4,5-tricaffeoylquinic acid (TCQA) and explored its cellular and molecular mechanism in the senescence-accelerated mouse prone 8 (SAMP8) model of aging and Alzheimer's disease as well as in human neural stem cells (hNSCs). Mice were fed with 5 mg/kg of TCQA for 30 days and were tested in the Morris water maze (MWM). Brain tissues were collected for immunohistochemical detection of bromodeoxyuridine (BrdU) to detect activated stem cells and newborn neurons. TCQA-treated SAMP8 exhibited significantly improved cognitive performance in MWM compared to water-treated SAMP8. TCQA-treated SAMP8 mice also had significantly higher numbers of BrdU+/glial fibrillary acidic protein (GFAP+) and BrdU+/Neuronal nuclei (NeuN+) cells in the dentate gyrus (DG) neurogenic niche compared with untreated SAMP8. In hNSCs, TCQA induced cell cycle arrest at G0/G1, actin cytoskeleton organization, chromatin remodeling, neuronal differentiation, and bone morphogenetic protein signaling. The neurogenesis promoting effect of TCQA in the DG of SAMP8 mice might explain the cognition-enhancing influence of TCQA observed in our study, and our hNSCs in aggregate suggest a therapeutic potential for TCQA in aging-associated diseases.
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Affiliation(s)
- Kazunori Sasaki
- Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki 305-8572, Japan.,Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5-2, Tsukuba City, Ibaraki 305-8565, Japan.,Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki 305-8571, Japan
| | - Julie Davies
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX13QX, UK
| | - Noelia Geribaldi Doldán
- Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki 305-8572, Japan.,Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX13QX, UK
| | - Sayo Arao
- Faculty of Life and Environmental Sciences, University of Tsukuba, Japan1-1-1 Tennodai, Tsukuba City, Ibaraki 305-8572, Japan
| | - Farhana Ferdousi
- Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki 305-8572, Japan
| | - Francis G Szele
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX13QX, UK
| | - Hiroko Isoda
- Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki 305-8572, Japan.,Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5-2, Tsukuba City, Ibaraki 305-8565, Japan.,Faculty of Life and Environmental Sciences, University of Tsukuba, Japan1-1-1 Tennodai, Tsukuba City, Ibaraki 305-8572, Japan
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Zhu L, Dai L, Yang N, Liu M, Ma S, Li C, Shen J, Lin T, Wang D, Pan W, Li X. Transcription factorIRX5 promotes hepatocellular carcinoma proliferation and inhibits apoptosis by regulating the p53 signalling pathway. Cell Biochem Funct 2020; 38:621-629. [PMID: 32153043 PMCID: PMC7384050 DOI: 10.1002/cbf.3517] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 02/01/2020] [Accepted: 02/05/2020] [Indexed: 12/24/2022]
Abstract
Hepatocellular carcinoma (HCC) is the fifth most common cancer worldwide and the third most frequent cause of cancer-related death. The IRX5 transcription factor plays a different role in multiple cancers and contributes to the development of many tumours. However, little is known about the molecular mechanisms of IRX5 in HCC. In this study, we found that IRX5 was abnormally upregulated in HCC tissues compared with adjacent normal tissues. IRX5 promoted HCC cell proliferation and upregulated the expression of cyclin D1 and knockdown of IRX5 suppressed tumorigenicity in vivo. Furthermore, knockdown of IRX5 increased p53 and Bax expression and decreased Bcl-2 expression. Thus, IRX5 suppressed apoptosis in HCC cells by inhibiting the p53 signalling pathway, indicating its role as a treatment target for HCC. SIGNIFICANCE OF THE STUDY: Our study demonstrated that IRX5 was abnormally upregulated in HCC tissues compared with adjacent normal tissues. IRX5 promoted HCC cell proliferation and upregulated the expression of cyclin D1, and knockdown of IRX5 suppressed tumorigenicity in vivo. Furthermore, knockdown of IRX5 increased p53 and Bax expression and decreased Bcl-2 expression. IRX5 suppressed apoptosis in HCC cells by inhibiting the p53 signalling pathway, indicating its role as a treatment target for HCC.
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Affiliation(s)
- Liying Zhu
- Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Longguang Dai
- Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Nenghong Yang
- Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Mi Liu
- Clinical Laboratory, The Tumor Hospital of Guizhou Province, Guiyang, China
| | - Shuang Ma
- Clinical Laboratory, Guizhou Provincial People,s Hospital, Guiyang, China
| | - Chengcheng Li
- Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Jie Shen
- Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Tao Lin
- Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Dan Wang
- Department of Clinical Laboratory, The People's Hospital of Rongchang District, Chongqing, China
| | - Wei Pan
- Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Xing Li
- Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China.,Guizhou university of traditional Chinese medicine, Guiyang, China
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33
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Zhou T, Luo P, Wang L, Yang S, Qin S, Wei Z, Liu J. CTNNB1 Knockdown Inhibits Cell Proliferation and Aldosterone Secretion Through Inhibiting Wnt/β-Catenin Signaling in H295R Cells. Technol Cancer Res Treat 2020; 19:1533033820979685. [PMID: 33287648 PMCID: PMC7727057 DOI: 10.1177/1533033820979685] [Citation(s) in RCA: 5] [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: 05/08/2020] [Revised: 10/09/2020] [Accepted: 11/02/2020] [Indexed: 01/31/2023] Open
Abstract
Aldosterone-producing adenomas (APA) is one of the causative factors of primary aldosteronism. Previous studies have suggested that there are somatic CTNNB1 mutations in APA, but the specific mechanism of CTNNB1 mutation in APA tumorigenesis and aldosterone secretion remains unclear. In the present study, human adrenocortical carcinoma cell line H295 R was used to establish stable CTNNB1 knockdown cell lines. Cell proliferation and aldosterone secretion of H295 R cells in response to angiotensin Ⅱ (Agn Ⅱ) were analyzed. We found that CTNNB1 knockdown reduced β-catenin expression and inhibited proliferation of H295 R cells. CTNNB1 knockdown inhibited Wnt/β-catenin signaling pathway and downregulated expression of downstream genes including axin 2, lymphoid enhancer binding factor 1 (LEF1), and cyclin D1. In addition, CTNNB1 knockdown decreased responses of H295 R cells to Agn Ⅱ and decreased aldosterone secretion. Our findings suggest that CTNNB1 knockdown can inhibit H295 R cell proliferation and decrease aldosterone secretion in the responses of H295 R cells to Ang II through inhibiting Wnt/β-catenin signaling pathway, indicating that targeting Wnt/β-catenin signaling pathway may be an important approach to decrease aldosterone secretion in the treatment of aldoster-producing adenomas.
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Affiliation(s)
- Tingting Zhou
- Department of Urology, The General Hospital of Western Theater Command PLA, Chengdu, China
| | - Pengwei Luo
- Department of Urology, The General Hospital of Western Theater Command PLA, Chengdu, China
- Department of Urology, The First Affiliated Hospital of Chengdu Medical College
| | - Liang Wang
- Department of Urology, The General Hospital of Western Theater Command PLA, Chengdu, China
| | - Shiwei Yang
- Department of Urology, The General Hospital of Western Theater Command PLA, Chengdu, China
| | - Shiyuan Qin
- Department of Urology, The General Hospital of Western Theater Command PLA, Chengdu, China
| | - Zhitao Wei
- Department of Urology, The First Affiliated Hospital of Chengdu Medical College
| | - Jiwen Liu
- Department of Urology, The General Hospital of Western Theater Command PLA, Chengdu, China
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Fremuntova Z, Mosko T, Soukup J, Kucerova J, Kostelanska M, Hanusova ZB, Filipova M, Cervenakova L, Holada K. Changes in cellular prion protein expression, processing and localisation during differentiation of the neuronal cell line CAD 5. Biol Cell 2019; 112:1-21. [PMID: 31736091 DOI: 10.1111/boc.201900045] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 11/08/2019] [Accepted: 11/09/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND INFORMATION Cellular prion protein (PrPC ) is infamous for its role in prion diseases. The physiological function of PrPC remains enigmatic, but several studies point to its involvement in cell differentiation processes. To test this possibility, we monitored PrPC changes during the differentiation of prion-susceptible CAD 5 cells, and then we analysed the effect of PrPC ablation on the differentiation process. RESULTS Neuronal CAD 5 cells differentiate within 5 days of serum withdrawal, with the majority of the cells developing long neurites. This process is accompanied by an up to sixfold increase in PrPC expression and enhanced N-terminal β-cleavage of the protein, which suggests a role for the PrPC in the differentiation process. Moreover, the majority of PrPC in differentiated cells is inside the cell, and a large proportion of the protein does not associate with membrane lipid rafts. In contrast, PrPC in proliferating cells is found mostly on the cytoplasmic membrane and is predominantly associated with lipid rafts. To determine the importance of PrPC in cell differentiation, a CAD 5 PrP-/- cell line with ablated PrPC expression was created using the CRISPR/Cas9 system. We observed no considerable difference in morphology, proliferation rate or expression of molecular markers between CAD 5 and CAD 5 PrP-/- cells during the differentiation initiated by serum withdrawal. CONCLUSIONS PrPC characteristics, such as cell localisation, level of expression and posttranslational modifications, change during CAD 5 cell differentiation, but PrPC ablation does not change the course of the differentiation process. SIGNIFICANCE Ablation of PrPC expression does not affect CAD 5 cell differentiation, although we observed many intriguing changes in PrPC features during the process. Our study does not support the concept that PrPC is important for neuronal cell differentiation, at least in simple in vitro conditions.
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Affiliation(s)
- Zuzana Fremuntova
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Tibor Mosko
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Jakub Soukup
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic.,Department of Genetics and Microbiology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Johanka Kucerova
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Marie Kostelanska
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Zdenka Backovska Hanusova
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Marcela Filipova
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | | | - Karel Holada
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
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Gong M, Luo C, Meng H, Li S, Nie S, Jiang Y, Wan Y, Li H, Cheng W. Upregulated LINC00565 Accelerates Ovarian Cancer Progression By Targeting GAS6. Onco Targets Ther 2019; 12:10011-10022. [PMID: 31819497 PMCID: PMC6875503 DOI: 10.2147/ott.s227758] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 11/05/2019] [Indexed: 12/25/2022] Open
Abstract
Background Long noncoding RNAs (lncRNAs) have been identified to participate in tumorigenesis. However, the underlying mechanisms of differentially expressed lncRNAs engaged in diseases remain indistinct and need further exploration. Methods Raw data files downloaded from TCGA and GEO dataset were used to analyze the differentially expressed lncRNAs and LINC00565 was picked out as the potential oncogene. qRT-PCR was used to analyze the LINC00565 level in ovarian tissues and cell lines. Subsequently, the selected ovarian tumor cells were then transfected with LINC00565 siRNA by Lipofectamine 2000 and the cell cycle was detected by flow cytometry. Effect of LINC00565 on tumor growth and cell cycle was verified by tumor formation assay in nude mice. The mechanism of LINC00565 involving in cell cycle regulation was further explored by Western blot. Results In this research, we discovered that LINC00565, a novel lncRNA, was highly expressed in ovarian cancer (OC). LINC00565 expression level was negatively associated with outcomes of OC patients. Further analysis showed that LINC00565 expression was closely correlated to tumor size, FIGO stage, but not related to other clinical features. In vitro experiments indicated that knockdown of LINC00565 significantly inhibited proliferative, invasive and migratory abilities of ovarian cancer cells. Besides, knockdown of LINC00565 can induce cell cycle arrest in G0/G1 phase. In addition, in vivo assay showed that low expression of LINC00565 inhibited the growth of OC. Further study found that LINC00565 knockdown markedly downregulated the protein expressions of CyclinD1, CyclinE1 and CDK4, but upregulated the expression of P16 and P21. Subsequently, we confirmed that LINC00565 promoted the progression of OC via upregulating GAS6, which has been confirmed to promote tumor progression. Conclusion In summary, our study firstly reported that the LINC00565 functioned as an oncogene to promote the progression of OC by interacting with GAS6.
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Affiliation(s)
- Mi Gong
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, People's Republic of China.,Department of Gynecology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an 223300, People's Republic of China
| | - Chengyan Luo
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, People's Republic of China
| | - Huangyang Meng
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, People's Republic of China
| | - Siyue Li
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, People's Republic of China
| | - Sipei Nie
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, People's Republic of China
| | - Yi Jiang
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, People's Republic of China
| | - Yicong Wan
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, People's Republic of China
| | - Huijian Li
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, Jiangsu 211166, People's Republic of China.,Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, People's Republic of China.,Department of Gynecology, Wuxi Maternal and Child Health Hospital, Wuxi, Jiangsu 214002, People's Republic of China
| | - Wenjun Cheng
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, People's Republic of China
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Tan X, Long W, Zeng L, Ding X, Cheng Y, Zhang X, Zou X. Melatonin-Induced Transcriptome Variation of Rapeseed Seedlings under Salt Stress. Int J Mol Sci 2019; 20:ijms20215355. [PMID: 31661818 PMCID: PMC6862158 DOI: 10.3390/ijms20215355] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 10/16/2019] [Accepted: 10/23/2019] [Indexed: 12/20/2022] Open
Abstract
Salt stress inhibits the production of all crop species, including rapeseed (Brassica napus L.), the second most widely planted oil crop species. Although melatonin was confirmed to alleviate salt stress in rapeseed seedlings recently, the mechanism governing the expression levels remains unknown. Therefore, the melatonin-induced transcriptome variation of salt-stressed seedlings was explored. In this study, the transcriptomes of leaves and roots under control (CK), salt (125 mM NaCl, ST) and melatonin (125 mM NaCl plus 50 µM melatonin, MS) treatments were evaluated by using next-generation sequencing techniques. After conducting comparisons of gene expression in the roots and leaves between MS and ST, the differentially expressed gene (DEG) pools were screened. Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses highlighted the significant pathways, which were mainly related to plant hormone synthesis and signal transduction, lignin and fatty acid metabolism. The functional genes in the objective KEGG pathways were identified. Furthermore, members of several transcription factor (TF) families participated in the response process. Combined with the hormone (campesterol (CS), jasmonic acid (JA), and gibberellic acid 3 (GA3)) contents measured in the seedlings, it could be concluded that melatonin induced changes in the intrinsic hormone metabolic network, which promoted seedling growth. Thus, this study identified new candidate genes and pathways active during the interactions between melatonin and salt stress, which provide clues for disclosing melatonin’s function in resistance to salt injury. Our results contribute to developing a practical method for sustainable agriculture on saline lands.
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Affiliation(s)
- Xiaoyu Tan
- Key Lab of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
- College of Plant Science and Technology of Huazhong Agricultural University, Wuhan 430070, China.
| | - Weihua Long
- Key Lab of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
- Key Lab of Cotton and Rapeseed (Nanjing) of Ministry of Agriculture and Rural Affairs, Institute of the Industrial Crops, Jiangsu Academy of Agriculture Sciences, Nanjing 210014, China.
| | - Liu Zeng
- Key Lab of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Xiaoyu Ding
- Key Lab of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Yong Cheng
- Key Lab of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Xuekun Zhang
- Key Lab of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Xiling Zou
- Key Lab of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
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Zhao C, Wu H, Chen P, Yi B, Ma Y, Deng K. MAT2A/2B promote porcine intramuscular preadipocyte proliferation through ERK signaling pathway. Anim Sci J 2019; 90:1278-1286. [PMID: 31293025 DOI: 10.1111/asj.13264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 05/12/2019] [Accepted: 06/03/2019] [Indexed: 12/22/2022]
Abstract
Intramuscular fat (IMF) content has been identified as a crucial factor of porcine meat quality. MAT2A and MAT2B coordinately catalyzes the synthesis of the major biological methyl donor S-adenosylmethionine (SAMe). However, the regulatory effect of MAT2A and MAT2B on porcine intramuscular preadipocyte proliferation has not been clarified. In this study, we investigated the effect of MAT2A and MAT2B and its potential mechanism during porcine intramuscular proliferation. We demonstrated that overexpression of MAT2A and MAT2B promoted the cell cycle progression of porcine preadipocyte by flow cytometry and EdU-labeling assay, as well as promoted the expression of cell cycle marker genes including Cyclin B, Cyclin D, and Cyclin-dependent kinase 4, but reduced the expression of cell cycle inhibitor P27. Consistently, knockdown of MAT2A and MAT2B inhibited cell cycle progression and downregulated the mRNA and protein levels of the above genes. Furthermore, overexpression of MAT2A and MAT2B activated the phosphorylation of ERK1/2. Moreover, the inhibitory effect of U0126 (a specific ERK1/2 inhibitor) on the ERK1/2 activities was partially recovered by overexpression of MAT2A and MAT2B in porcine intramuscular preadipocytes. Taken together, our findings suggested that MAT2A and MAT2B promote porcine preadipocyte proliferation by ERK1/2 signaling pathway.
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Affiliation(s)
- Cunzhen Zhao
- Laboratory of Animal Biotechnology and Breeding, College of Animal Science and Veterinary Medicine, Xinyang College of Agriculture and Forestry, Xinyang, Henan, China
| | - Haigang Wu
- Laboratory of Animal Biotechnology and Breeding, College of Animal Science and Veterinary Medicine, Xinyang College of Agriculture and Forestry, Xinyang, Henan, China
| | - Peirong Chen
- Laboratory of Animal Biotechnology and Breeding, College of Animal Science and Veterinary Medicine, Xinyang College of Agriculture and Forestry, Xinyang, Henan, China
| | - Benchi Yi
- Laboratory of Animal Biotechnology and Breeding, College of Animal Science and Veterinary Medicine, Xinyang College of Agriculture and Forestry, Xinyang, Henan, China
| | - Yun Ma
- College of Life Science, Xinyang Normal University, Xinyang, Henan, China
| | - Kaiwei Deng
- Laboratory of Animal Biotechnology and Breeding, College of Animal Science and Veterinary Medicine, Xinyang College of Agriculture and Forestry, Xinyang, Henan, China
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38
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D'Angelo B, Astarita C, Boffo S, Massaro-Giordano M, Antonella Ianuzzi C, Caporaso A, Macaluso M, Giordano A. LPS-induced inflammatory response triggers cell cycle reactivation in murine neuronal cells through retinoblastoma proteins induction. Cell Cycle 2019; 16:2330-2336. [PMID: 28820328 DOI: 10.1080/15384101.2017.1363943] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Cell cycle reactivation in adult neurons is an early hallmark of neurodegeneration. The lipopolysaccharide (LPS) is a well-known pro-inflammatory factor that provokes neuronal cell death via glial cells activation. The retinoblastoma (RB) family includes RB1/p105, retinoblastoma-like 1 (RBL1/p107), and retinoblastoma-like 2 (Rb2/p130). Several studies have indicated that RB proteins exhibit tumor suppressor activities, and play a central role in cell cycle regulation. In this study, we assessed LPS-mediated inflammatory effect on cell cycle reactivation and apoptosis of neuronally differentiated cells. Also, we investigated whether the LPS-mediated inflammatory response can influence the function and expression of RB proteins. Our results showed that LPS challenges triggered cell cycle reactivation of differentiated neuronal cells, indicated by an accumulation of cells in S and G2/M phase. Furthermore, we found that LPS treatment also induced apoptotic death of neurons. Interestingly, we observed that LPS-mediated inflammatory effect on cell cycle re-entry and apoptosis was concomitant with the aberrant expression of RBL1/p107 and RB1/p105. To the best of our knowledge, our study is the first to indicate a role of LPS in inducing cell cycle re-entry and/or apoptosis of differentiated neuronal cells, perhaps through mechanisms altering the expression of specific members of RB family proteins. This study provides novel information on the biology of post-mitotic neurons and could help in identifying novel therapeutic targets to prevent de novo cell cycle reactivation and/or apoptosis of neurons undergoing neurodegenerative processes.
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Affiliation(s)
- Barbara D'Angelo
- a Sbarro Institute for Cancer Research and Molecular Medicine, Department of Biology, Center for Biotechnology, College of Science and Technology , Temple University , Philadelphia , PA , USA
| | - Carlo Astarita
- a Sbarro Institute for Cancer Research and Molecular Medicine, Department of Biology, Center for Biotechnology, College of Science and Technology , Temple University , Philadelphia , PA , USA.,b Department of Medicine, Surgery, and Neuroscience , University of Siena , Siena , Italy
| | - Silvia Boffo
- a Sbarro Institute for Cancer Research and Molecular Medicine, Department of Biology, Center for Biotechnology, College of Science and Technology , Temple University , Philadelphia , PA , USA
| | - Mina Massaro-Giordano
- c Department of Ophthalmology, Perelman School of Medicine , University of Pennsylvania , Philadelphia , PA
| | | | - Antonella Caporaso
- d Oncology Research Center of Mercogliano (CROM) , Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale , Naples , Italy
| | - Marcella Macaluso
- a Sbarro Institute for Cancer Research and Molecular Medicine, Department of Biology, Center for Biotechnology, College of Science and Technology , Temple University , Philadelphia , PA , USA
| | - Antonio Giordano
- a Sbarro Institute for Cancer Research and Molecular Medicine, Department of Biology, Center for Biotechnology, College of Science and Technology , Temple University , Philadelphia , PA , USA.,b Department of Medicine, Surgery, and Neuroscience , University of Siena , Siena , Italy
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Li W, Li N, Liang L, Yu Q, Ren P, Shi H, Storey KB, Hong M, Ding L. Regulation of p53 in the red-eared slider (Trachemys scripta elegans) in response to salinity stress. Comp Biochem Physiol C Toxicol Pharmacol 2019; 221:49-58. [PMID: 30940557 DOI: 10.1016/j.cbpc.2019.03.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 03/27/2019] [Accepted: 03/27/2019] [Indexed: 10/27/2022]
Abstract
The freshwater red-eared slider (Trachemys scripta elegans) is found not only in freshwater but also in coastal saline habitats. Hyperosmotic salinity can induce cell damage. p53, regarded as the guardian of the genome, is very important and versatile in response to the change of environment. In this study, the role of p53 in T. s. elegans under environmental salinity change will be explored. The results indicated that amino acid sequence of p53 showed high similarity to p53 of other species. In addition, the expression of p53 showed differences in various tissues under normal condition. Under salinity stress, the mRNA levels of p53 in the liver increased significantly at 48 h with 15‰ group (15 practical salinity units-exposed group). In the heart, p53 mRNA levels increased at 6 h in 5‰ (5 practical salinity units) and 15‰ groups. Furthermore, the changes of p21 mRNA expression levels in liver and heart were similar to p53, while cyclin D1, cyclin-dependent kinase4 (CDK4) and cyclin-dependent kinase6 (CDK6) showed opposite changes to p53. Moreover, Bax and caspase 3 mRNA expression levels were similar to p53, respectively, while Bcl-2 showed opposite changes. The positive cells of apoptosis were found in the liver of 15‰ at 48 h and 30 d of chronic stress. Taken together, these results indicated that the T. s. elegans may protect itself by regulating cell cycle progression and apoptosis of damaged cells under salinity stress, which played an important role for T. s. elegans in salinity adaptation.
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Affiliation(s)
- Weihao Li
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, China
| | - Na Li
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, China
| | - Lingyue Liang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, China
| | - Qifan Yu
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, China
| | - Peng Ren
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, China
| | - Haitao Shi
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, China; Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Kenneth B Storey
- Department of Biology, Carleton University, Ottawa K1S 5B6, Canada
| | - Meiling Hong
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, China.
| | - Li Ding
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, China.
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40
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Bandopadhayay P, Piccioni F, O'Rourke R, Ho P, Gonzalez EM, Buchan G, Qian K, Gionet G, Girard E, Coxon M, Rees MG, Brenan L, Dubois F, Shapira O, Greenwald NF, Pages M, Balboni Iniguez A, Paolella BR, Meng A, Sinai C, Roti G, Dharia NV, Creech A, Tanenbaum B, Khadka P, Tracy A, Tiv HL, Hong AL, Coy S, Rashid R, Lin JR, Cowley GS, Lam FC, Goodale A, Lee Y, Schoolcraft K, Vazquez F, Hahn WC, Tsherniak A, Bradner JE, Yaffe MB, Milde T, Pfister SM, Qi J, Schenone M, Carr SA, Ligon KL, Kieran MW, Santagata S, Olson JM, Gokhale PC, Jaffe JD, Root DE, Stegmaier K, Johannessen CM, Beroukhim R. Neuronal differentiation and cell-cycle programs mediate response to BET-bromodomain inhibition in MYC-driven medulloblastoma. Nat Commun 2019; 10:2400. [PMID: 31160565 PMCID: PMC6546744 DOI: 10.1038/s41467-019-10307-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 04/25/2019] [Indexed: 12/26/2022] Open
Abstract
BET-bromodomain inhibition (BETi) has shown pre-clinical promise for MYC-amplified medulloblastoma. However, the mechanisms for its action, and ultimately for resistance, have not been fully defined. Here, using a combination of expression profiling, genome-scale CRISPR/Cas9-mediated loss of function and ORF/cDNA driven rescue screens, and cell-based models of spontaneous resistance, we identify bHLH/homeobox transcription factors and cell-cycle regulators as key genes mediating BETi's response and resistance. Cells that acquire drug tolerance exhibit a more neuronally differentiated cell-state and expression of lineage-specific bHLH/homeobox transcription factors. However, they do not terminally differentiate, maintain expression of CCND2, and continue to cycle through S-phase. Moreover, CDK4/CDK6 inhibition delays acquisition of resistance. Therefore, our data provide insights about the mechanisms underlying BETi effects and the appearance of resistance and support the therapeutic use of combined cell-cycle inhibitors with BETi in MYC-amplified medulloblastoma.
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Affiliation(s)
- Pratiti Bandopadhayay
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
- Department of Pediatrics, Harvard Medical School, Boston, USA
| | | | - Ryan O'Rourke
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Patricia Ho
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Elizabeth M Gonzalez
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Graham Buchan
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Kenin Qian
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Gabrielle Gionet
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Emily Girard
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, USA
| | - Margo Coxon
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, USA
| | | | - Lisa Brenan
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Frank Dubois
- Broad Institute of MIT and Harvard, Cambridge, USA
- Division of Cancer Biology, Dana-Farber Cancer Institute, Boston, USA
| | - Ofer Shapira
- Broad Institute of MIT and Harvard, Cambridge, USA
- Division of Cancer Biology, Dana-Farber Cancer Institute, Boston, USA
| | - Noah F Greenwald
- Broad Institute of MIT and Harvard, Cambridge, USA
- Division of Cancer Biology, Dana-Farber Cancer Institute, Boston, USA
- Department of Neurosurgery, Brigham and Women's Hospital, Boston, USA
| | - Melanie Pages
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Amanda Balboni Iniguez
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Brenton R Paolella
- Broad Institute of MIT and Harvard, Cambridge, USA
- Division of Cancer Biology, Dana-Farber Cancer Institute, Boston, USA
| | - Alice Meng
- Division of Medical Oncology, Dana-Farber Cancer Institute, Boston, USA
| | - Claire Sinai
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Division of Medical Oncology, Dana-Farber Cancer Institute, Boston, USA
| | - Giovanni Roti
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
- Department of Medicine and Surgery, Hematology and BMT, University of Parma, Parma, Italy
| | - Neekesh V Dharia
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
- Department of Pediatrics, Harvard Medical School, Boston, USA
| | | | | | - Prasidda Khadka
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
- Department of Pediatrics, Harvard Medical School, Boston, USA
| | - Adam Tracy
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Hong L Tiv
- Experimental Therapeutics Core and Belfer Center for Applied Cancer Science, Boston, USA
| | - Andrew L Hong
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
- Department of Pediatrics, Harvard Medical School, Boston, USA
| | - Shannon Coy
- Department of Pathology, Brigham and Women's Hospital, Boston, USA
| | - Rumana Rashid
- Department of Pathology, Brigham and Women's Hospital, Boston, USA
- Department of Biomedical Informatics, Harvard Medical School, Boston, USA
| | - Jia-Ren Lin
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston, USA
- Ludwig Center for Cancer Research at Harvard, Harvard Medical School, Boston, USA
| | - Glenn S Cowley
- Broad Institute of MIT and Harvard, Cambridge, USA
- Discovery Science, Janssen Research and Development (Johnson & Johnson), Spring House, PA, USA
| | - Fred C Lam
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, USA
| | - Amy Goodale
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Yenarae Lee
- Broad Institute of MIT and Harvard, Cambridge, USA
| | | | | | - William C Hahn
- Broad Institute of MIT and Harvard, Cambridge, USA
- Division of Medical Oncology, Dana-Farber Cancer Institute, Boston, USA
- Department of Medicine, Harvard Medical School, Boston, USA
| | | | - James E Bradner
- Broad Institute of MIT and Harvard, Cambridge, USA
- Division of Medical Oncology, Dana-Farber Cancer Institute, Boston, USA
- Department of Medicine, Harvard Medical School, Boston, USA
- Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Michael B Yaffe
- Broad Institute of MIT and Harvard, Cambridge, USA
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, USA
| | - Till Milde
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- CCU Pediatric Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Pediatric Oncology, Hematology, and Immunology, Center for Child and Adolescent Medicine, Heidelberg University Hospital, Heidelberg, Germany
| | - Stefan M Pfister
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Division of Pediatric Neuro-Oncology, German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Jun Qi
- Division of Cancer Biology, Dana-Farber Cancer Institute, Boston, USA
| | | | | | - Keith L Ligon
- Broad Institute of MIT and Harvard, Cambridge, USA
- Department of Pathology, Brigham and Women's Hospital, Boston, USA
- Department of Medicine, Harvard Medical School, Boston, USA
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, Boston, USA
- Department of Pathology, Boston Children's Hospital, Boston, USA
| | - Mark W Kieran
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Department of Pediatrics, Harvard Medical School, Boston, USA
| | - Sandro Santagata
- Division of Medical Oncology, Dana-Farber Cancer Institute, Boston, USA
- Department of Pathology, Brigham and Women's Hospital, Boston, USA
| | - James M Olson
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, USA
| | - Prafulla C Gokhale
- Experimental Therapeutics Core and Belfer Center for Applied Cancer Science, Boston, USA
| | | | - David E Root
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Kimberly Stegmaier
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
- Department of Pediatrics, Harvard Medical School, Boston, USA
| | | | - Rameen Beroukhim
- Broad Institute of MIT and Harvard, Cambridge, USA.
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, USA.
- Division of Medical Oncology, Dana-Farber Cancer Institute, Boston, USA.
- Department of Medicine, Harvard Medical School, Boston, USA.
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Comparative Genomic Analysis of Trichinella spiralis Reveals Potential Mechanisms of Adaptive Evolution. BIOMED RESEARCH INTERNATIONAL 2019; 2019:2948973. [PMID: 31240209 PMCID: PMC6556364 DOI: 10.1155/2019/2948973] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 04/10/2019] [Indexed: 12/20/2022]
Abstract
Trichinellosis caused by parasitic nematodes of the genus Trichinella may result in human morbidity and mortality worldwide. Deciphering processes that drive species diversity and adaptation are key to understanding parasitism and developing effective control strategies. Our goal was to identify genes that are under positive selection and possible mechanisms of adaptive evolution of Trichinella spiralis genes using a comparative genomic analysis with the genomes of Brugia malayi, Trichuris suis, Ancylostoma ceylanicum, and Caenorhabditis elegans. The CODEML program derived from the PAML package was used to deduce the most probable dN/dS ratio, a measurement to detect genes/proteins undergoing adaptation. For each pair of sequences, those with a dN/dS ratio > 1 were considered positively selected genes (PSGs). Altogether, 986 genes were positively selected (p-value < 0.01). Genes involved in metabolic pathways, signaling pathways, and cytosolic DNA-sensing pathways were significantly enriched among the PSGs. Several PSGs are associated with exploitation of the host: modification of the host's metabolism, creation of new parasite-specific morphological structures between T. spiralis and the host interface, xenobiotic metabolism to combat low oxygen concentrations and host toxicity, muscle cell transformation, cell cycle arrest, DNA repair processes during nurse cell formation, antiapoptotic factors, immunomodulation, and regulation of epigenetic processes. Some of the T. spiralis PSGs have C. elegans orthologs that confer severe or lethal RNAi phenotypes. Fifty-seven PSGs in T. spiralis were analyzed to encode differentially expressed proteins. The present study utilized an overall comparative genomic analysis to discover PSGs within T. spiralis and their relationships with biological function and organism fitness. This analysis adds to our understanding of the possible mechanism that contributes to T. spiralis parasitism and biological adaptation within the host, and thus these identified genes may be potential targets for drug and vaccine development.
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Zhang X, Wei R, Sun Y, Xia Q, Xie W, Song H, Wang W, Zou K. AKT3 Is a Pivotal Molecule of Cadherin-22 and GDNF Family Receptor-α1 Signal Pathways Regulating Self-Renewal in Female Germline Stem Cells. Stem Cells 2019; 37:1095-1107. [PMID: 31041846 DOI: 10.1002/stem.3030] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 04/20/2019] [Indexed: 12/16/2022]
Abstract
Female germline stem cells (FGSCs) are rare population residing in cortex of ovary, with the potential to rescue female infertility caused by ovary failure. Recently, we reported that cadherin-22 (CDH22), a member of cadherin family, regulates self-renewal of mouse FGSCs via interaction with JAK-STAT signal pathway and β-catenin. In this study, the expression profiles of FGSCs and spermatogonial stem cells (SSCs) were analyzed to further reveal their similarity and difference, and AKT3 was predicted as a pivotal molecule for FGSCs self-renewal. Then, we demonstrated that CDH22 interacted with PI3K to phosphorylate AKT3 and subsequently enhanced the expression levels of N-myc and cyclin family in FGSCs to promote self-renewal. Moreover, glial cell line-derived neurotrophic factor (GDNF) was identified as an essential factor for FGSCs self-renewal with a more complicated mechanism: GDNF-GFRA1 activates AKT3 via PI3K or Src family kinase (SFK), and SFK upregulates its target genes, Bcl6b, Etv5, and Lhx1, to promote self-renewal of FGSCs. However, Src, the key intermediate factor for SSCs, was not the functional molecule of SFK family in the GDNF signal network of FGSCs. Based on the observations of bioinformatics analysis and molecular evidence, we demonstrate the underlying links of potential factors which are critical to the self-renewal in FGSC and imply the therapeutic potentials of FGSCs in cure of female infertility. Stem Cells 2019;37:1095-1107.
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Affiliation(s)
- Xiaoyu Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Rui Wei
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Yizhuo Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Qin Xia
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Wenhai Xie
- School of Life Sciences, Shandong University of Technology, Zibo, People's Republic of China
| | - Hongfei Song
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Wei Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People's Republic of China.,National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Kang Zou
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People's Republic of China
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Ding TB, Li J, Chen EH, Niu JZ, Chu D. Transcriptome Profiling of the Whitefly Bemisia tabaci MED in Response to Single Infection of Tomato yellow leaf curl virus, Tomato chlorosis virus, and Their Co-infection. Front Physiol 2019; 10:302. [PMID: 31001125 PMCID: PMC6457337 DOI: 10.3389/fphys.2019.00302] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 03/07/2019] [Indexed: 12/31/2022] Open
Abstract
Tomato yellow leaf curl virus (TYLCV) and Tomato chlorosis virus (ToCV) are two of the most devastating cultivated tomato viruses, causing significant crop losses worldwide. As the vector of both TYLCV and ToCV, the whitefly Bemisia tabaci Mediterranean (MED) is mainly responsible for the rapid spread and mixed infection of TYLCV and ToCV in China. However, little is known concerning B. tabaci MED's molecular response to TYLCV and ToCV infection or their co-infection. We determined the transcriptional responses of the whitefly MED to TYLCV infection, ToCV infection, and TYLCV&ToCV co-infection using Illumina sequencing. In all, 78, 221, and 60 differentially expressed genes (DEGs) were identified in TYLCV-infected, ToCV-infected, and TYLCV&ToCV co-infected whiteflies, respectively, compared with non-viruliferous whiteflies. Differentially regulated genes were sorted according to their roles in detoxification, stress response, immune response, transport, primary metabolism, cell function, and total fitness in whiteflies after feeding on virus-infected tomato plants. Alterations in the transcription profiles of genes involved in transport and energy metabolism occurred between TYLCV&ToCV co-infection and single infection with TYLCV or ToCV; this may be associated with the adaptation of the insect vector upon co-infection of the two viruses. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses demonstrated that the single infection with TYLCV or ToCV and the TYLCV&ToCV co-infection could perturb metabolic processes and metabolic pathways. Taken together, our results provide basis for further exploration of the molecular mechanisms of the response to TYLCV, ToCV single infection, and TYLCV&ToCV co-infection in B. tabaci MED, which will add to our knowledge of the interactions between plant viruses and insect vectors.
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Affiliation(s)
- Tian-Bo Ding
- Key Laboratory of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China
| | - Jie Li
- Key Laboratory of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China
| | - Er-Hu Chen
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
| | - Jin-Zhi Niu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
| | - Dong Chu
- Key Laboratory of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China
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Chen F, Li M, Zhu X. RETRACTED: Propofol suppresses proliferation and migration of papillary thyroid cancer cells by down-regulation of lncRNA ANRIL. Exp Mol Pathol 2019; 107:68-76. [PMID: 30703346 DOI: 10.1016/j.yexmp.2019.01.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 11/13/2018] [Accepted: 01/26/2019] [Indexed: 12/18/2022]
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief as there are concerns about the reliability of the results included in the article. The journal was initially contacted by the corresponding author to request the retraction of the article. Given the comments of Dr Elisabeth Bik https://scienceintegritydigest.com/2020/02/21/the-tadpole-paper-mill/ regarding this article, the journal requested the author to provide the raw data. However, the author was not able to fulfil this request.
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Affiliation(s)
- Fumei Chen
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Mengyuan Li
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Xiaoping Zhu
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China.
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Xu J, Li X, Song W, Wang W, Gao S. Cyclin Cyc2p is required for micronuclear bouquet formation in Tetrahymena thermophila. SCIENCE CHINA-LIFE SCIENCES 2019; 62:668-680. [PMID: 30820856 DOI: 10.1007/s11427-018-9369-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 11/19/2018] [Indexed: 01/31/2023]
Abstract
Meiotic bouquet formation (known as crescent formation in Tetrahymena thermophila) is indispensable for homologous pairing and recombination, but the regulatory mechanism of bouquet formation remains largely unknown. As a conjugation specific cyclin gene, CYC2 knockout mutants failed to form an elongated crescent structure and aborted meiosis progress in T. thermophila. γ-H2A.X staining revealed fewer micronuclear DNA double-strand breaks (DSBs) in cyc2Δ cells than in wild-type cells. Furthermore, cyc2Δ cells still failed to form a crescent structure even though DSBs were induced by exogenous agents, indicating that a lack of DSBs was not completely responsible for failure to enter the crescent stage. Tubulin staining showed that impaired perinuclear microtubule structure may contribute to the blockage in micronuclear elongation. At the same time, expression of microtubule-associated kinesin genes, KIN11 and KIN141, was significantly downregulated in cyc2Δ cells. Moreover, micronuclear specific accumulation of heterochromatin marker trimethylated H3K23 abnormally increased in the cyc2Δ mutants. Together, these results show that cyclin Cyc2p is required for micronuclear bouquet formation via controlling microtubule-directed nuclear elongation in Tetrahymena.
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Affiliation(s)
- Jing Xu
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao, 266003, China
- College of Life Science, Shanxi University, Taiyuan, 030006, China
- Key Laboratory of Chemical Biology and Molecular Engineering of the Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, 030006, China
| | - Xiaoxiong Li
- Key Laboratory of Chemical Biology and Molecular Engineering of the Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, 030006, China
| | - Weibo Song
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao, 266003, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China
| | - Wei Wang
- Key Laboratory of Chemical Biology and Molecular Engineering of the Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, 030006, China.
| | - Shan Gao
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao, 266003, China.
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China.
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.
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Ma L, Gu M, Teng Y, Li W. Establishing a detection method for CCNY: a potentially significant clinical investigative marker in NSCLC patients. Onco Targets Ther 2019; 12:921-932. [PMID: 30774378 PMCID: PMC6357874 DOI: 10.2147/ott.s180507] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background CCNY, a novel cyclin family member, plays an increasingly important role in the progression of tumor invasion and metastasis, including lung cancer. However, the clinical significance of CCNY in non-small-cell lung cancer (NSCLC) patients is unknown. Patients and methods We prepared CCNY monoclonal antibodies, validated specific peptides by a peptide array, and established a double-antibody sandwich ELISA detection method. Then, we measured CCNY levels in 100 NSCLC patients and 50 healthy controls. A blinded validation was subsequently performed in 399 NSCLC patients and 150 healthy controls. Results We successfully prepared two specific mouse anti-human CCNY monoclonal antibodies and established a reliable and stable detection method. In the training set, serum CCNY was markedly increased in the NSCLC patients (P<0.05) with an integrated area under the curve of 0.751. With further analysis of the CCNY levels, there were no differences in age, sex, smoking status, tumor location, histologic subtype, or tumor size, but differences were observed in lymphatic (P<0.001) and distant (P<0.001) metastases in NSCLC patients. The CCNY[+] patients had a shorter survival time and progression-free survival than CCNY[−] patients at 3-year follow-up (P<0.001). The results were confirmed by the validation set. Conclusion Our study suggests that CCNY may be useful as a latent tumor marker to facilitate diagnosis and may be an effective indicator of tumor aggressiveness, playing an important role in the prognosis of NSCLC patients.
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Affiliation(s)
- Li Ma
- Department of Cellular and Molecular Biology, Beijing Tuberculosis and Thoracic Tumor Research Institution/Beijing Chest Hospital, Capital Medical University, Beijing 101149, China,
| | - Meng Gu
- Department of Cellular and Molecular Biology, Beijing Tuberculosis and Thoracic Tumor Research Institution/Beijing Chest Hospital, Capital Medical University, Beijing 101149, China,
| | - Yu Teng
- Department of Cellular and Molecular Biology, Beijing Tuberculosis and Thoracic Tumor Research Institution/Beijing Chest Hospital, Capital Medical University, Beijing 101149, China,
| | - Weiying Li
- Department of Cellular and Molecular Biology, Beijing Tuberculosis and Thoracic Tumor Research Institution/Beijing Chest Hospital, Capital Medical University, Beijing 101149, China,
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Xu C, Zheng J. siRNA against TSG101 reduces proliferation and induces G0/G1 arrest in renal cell carcinoma - involvement of c-myc, cyclin E1, and CDK2. Cell Mol Biol Lett 2019; 24:7. [PMID: 30675171 PMCID: PMC6332891 DOI: 10.1186/s11658-018-0124-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 11/29/2018] [Indexed: 01/04/2023] Open
Abstract
Objective The tumor susceptibility gene 101 (TSG101) is closely associated with various tumor types, but its role in the pathogenesis of renal cell carcinoma (RCC) is still unknown. This study used RNA interference to silence the expression of TSG101 in RCC cell lines and explore the role of TSG101 in RCC. Methods Immunohistochemistry and western blot were performed to detect the expression of TSG101 in 15 paired renal tumor samples. A small interfering RNA (siRNA) targeting TSG101 was transfected into A498 and 786-O cell lines. The Cell Counting Kit-8 (CCK-8) assay and colony formation assay were used to observe the changes in cell proliferation after transfection. Flow cytometry was used to detect the effect on the cell cycle. Western blot was conducted to study the changes of related functional proteins. Results The expression of TSG101 was higher in RCC tissues than in adjacent normal tissues. The CCK-8 assay showed that the proliferation and colony formation of the A498 and 786-O cell lines were attenuated after suppression of TSG101. Flow cytometry showed that silencing of TSG101 induced G0/G1 arrest. The western blot results revealed that the levels of cell cycle-related proteins (c-myc, cyclin E1 and cyclin-dependent kinase 2 (CDK2)) were markedly decreased in the siRNA groups. Conclusions TSG101 promotes proliferation of RCC cells. This positive effect on tumor growth involves activation of c-myc and cyclin E1/CDK2 and their effect on cell cycle distribution.
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Affiliation(s)
- Chen Xu
- Department of Urology, Tenth People's Hospital of Tongji University, Yanchang Road 301, Shanghai, 200072 China
| | - Junhua Zheng
- Department of Urology, Tenth People's Hospital of Tongji University, Yanchang Road 301, Shanghai, 200072 China
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Chen R, Cui Y, Zhang X, Zhang Y, Chen M, Zhou T, Lan X, Dong W, Pan C. Chlorpyrifos Induction of Testicular-Cell Apoptosis through Generation of Reactive Oxygen Species and Phosphorylation of AMPK. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:12455-12470. [PMID: 30378422 DOI: 10.1021/acs.jafc.8b03407] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Chlorpyrifos (CPF) is the most frequently applied insecticide. Aside from effects on the neuronal cholinergic system, previous studies suggested a potential relationship between CPF exposure and male infertility; however, the molecular mechanism remains elusive. The aim of this study was to investigate the toxic effect of CPF on testicular cells and the potential mechanism via in vitro and in vivo experiments. The cytotoxic effects of CPF on mouse-derived spermatogonial cell lines (GC-1), Sertoli cell lines (TM4) and Leydig cell lines (TM3) were assessed by a CCK-8 assay, flow cytometry, a TUNEL assay, quantitative RT-PCR, and Western blotting. Exposure to CPF (10-50 μM) for 12 or 24 h resulted in significant death in all three testicular cell lines. The number of TUNEL-positive apoptotic cells were dose-dependent and increased with raised CPF concentrations. Further investigation indicated that CPF induced cell-cycle arrest and then promoted cell apoptosis. Additionally, CPF increased reactive-oxygen-species (ROS) production and lipid peroxidation (MDA) and reduced mitochondrial-membrane potential. The mechanism of cell apoptosis induced by CPF involved an increase in phosphorylated-AMP-activated-protein-kinase (p-AMPK) levels in the tested cells. In vivo, the expression of steroid-hormone-biosynthesis-related genes in testis, spleen, and lung in F0 and F1 mice were downregulated when there was intraperitoneal injection or dietary supplementation of CPF. This study provides a potential molecular mechanism of CPF-induced toxicity in testicular cells and a theoretical basis for future treatment of male infertility.
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Affiliation(s)
- Rui Chen
- College of Animal Science and Technology , Northwest A&F University , Yangling , Shaanxi 712100 , China
| | - Yang Cui
- College of Animal Science and Technology , Northwest A&F University , Yangling , Shaanxi 712100 , China
| | - Xuelian Zhang
- College of Animal Science and Technology , Northwest A&F University , Yangling , Shaanxi 712100 , China
| | - Yanghai Zhang
- College of Animal Science and Technology , Northwest A&F University , Yangling , Shaanxi 712100 , China
| | - Mingyue Chen
- College of Animal Science and Technology , Northwest A&F University , Yangling , Shaanxi 712100 , China
| | - Tong Zhou
- College of Animal Science and Technology , Northwest A&F University , Yangling , Shaanxi 712100 , China
| | - Xianyong Lan
- College of Animal Science and Technology , Northwest A&F University , Yangling , Shaanxi 712100 , China
| | - Wuzi Dong
- College of Animal Science and Technology , Northwest A&F University , Yangling , Shaanxi 712100 , China
| | - Chuanying Pan
- College of Animal Science and Technology , Northwest A&F University , Yangling , Shaanxi 712100 , China
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Cell cycle modulatory effects of Amaryllidaceae alkaloids. Life Sci 2018; 213:94-101. [DOI: 10.1016/j.lfs.2018.08.073] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/30/2018] [Accepted: 08/31/2018] [Indexed: 01/13/2023]
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50
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Malenfant RM, Davis CS, Richardson ES, Lunn NJ, Coltman DW. Heritability of body size in the polar bears of Western Hudson Bay. Mol Ecol Resour 2018; 18:854-866. [DOI: 10.1111/1755-0998.12889] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 03/23/2018] [Accepted: 03/29/2018] [Indexed: 12/16/2022]
Affiliation(s)
- René M. Malenfant
- Department of Biology University of New Brunswick Fredericton NB Canada
- Department of Biological Sciences University of Alberta Edmonton Alberta Canada
| | - Corey S. Davis
- Department of Biological Sciences University of Alberta Edmonton Alberta Canada
| | - Evan S. Richardson
- Wildlife Research Division Science and Technology Branch Environment and Climate Change Canada Winnipeg MB Canada
| | - Nicholas J. Lunn
- Wildlife Research Division Science and Technology Branch Environment and Climate Change Canada University of Alberta Edmonton AB Canada
| | - David W. Coltman
- Department of Biological Sciences University of Alberta Edmonton Alberta Canada
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