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Zhao E, Xiong X, Li X, Hu H, Wu C. Effect of Biofilm Forming on the Migration of Di(2-ethylhexyl)phthalate from PVC Plastics. Environ Sci Technol 2024; 58:6326-6334. [PMID: 38551364 DOI: 10.1021/acs.est.3c09021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Plastic additives, represented by plasticizers, are important components of plastic pollution. Biofilms inevitably form on plastic surfaces when plastic enters the aqueous environment. However, little is known about the effect of biofilms on plastic surfaces on the release of additives therein. In this study, PVC plastics with different levels of di(2-ethylhexyl)phthalate (DEHP) content were investigated to study the effect of biofilm growth on DEHP release. The presence of biofilms promoted the migration of DEHP from PVC plastics to the external environment. Relative to biofilm-free controls, although the presence of surface biofilm resulted in 0.8 to 11.6 times lower DEHP concentrations in water, the concentrations of the degradation product, monoethylhexyl phthalate (MEHP) in water, were 2.3 to 57.3 times higher. When the total release amounts of DEHP in the biofilm and in the water were combined, they were increased by 0.6-73 times after biofilm growth. However, most of the released DEHP was adsorbed in the biofilms and was subsequently degraded. The results of this study suggest that the biofilm as a new interface between plastics and the surrounding environment can affect the transport and transformation of plastic additives in the environment through barrier, adsorption, and degradation. Future research endeavors should aim to explore the transport dynamics and fate of plastic additives under various biofilm compositions as well as evaluate the ecological risks associated with their enrichment by biofilms.
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Affiliation(s)
- E Zhao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, 7 South Donghu Road, Wuhan 430072, PR China
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Chinese Academy of Sciences, 7 South Donghu Road, Wuhan 430072, PR China
- University of Chinese Academy of Sciences, No.1 Yanqihu East Rd, Huairou District, Beijing 101408, PR China
| | - Xiong Xiong
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, 7 South Donghu Road, Wuhan 430072, PR China
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Chinese Academy of Sciences, 7 South Donghu Road, Wuhan 430072, PR China
| | - Xin Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, 7 South Donghu Road, Wuhan 430072, PR China
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Chinese Academy of Sciences, 7 South Donghu Road, Wuhan 430072, PR China
| | - Hongjuan Hu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, 7 South Donghu Road, Wuhan 430072, PR China
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Chinese Academy of Sciences, 7 South Donghu Road, Wuhan 430072, PR China
| | - Chenxi Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, 7 South Donghu Road, Wuhan 430072, PR China
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Wang Z, Cai H, Li Z, Sun W, Zhao E, Cui H. Histone demethylase KDM4B accelerates the progression of glioblastoma via the epigenetic regulation of MYC stability. Clin Epigenetics 2023; 15:192. [PMID: 38093312 PMCID: PMC10720090 DOI: 10.1186/s13148-023-01608-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/21/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND Glioblastoma (GBM) is the most malignant and invasive human brain tumor. Histone demethylase 4B (KDM4B) is abnormally expressed in GBM, but the molecular mechanisms by which KDM4B affects the malignant tumor progression are not well defined. METHODS GBM cell lines and xenograft tumor samples were subjected to quantitative PCR (qPCR), Western blot, immunohistochemical staining (IHC), as well as ubiquitination, immunoprecipitation (IP), and chromatin immunoprecipitation (ChIP) assays to investigate the role of KDM4B in the progression of GBM. RESULTS Here, we report that KDM4B is an epigenetic activator of GBM progression. Abnormal expression of KDM4B is correlated with a poor prognosis in GBM patients. In GBM cell lines, KDM4B silencing significantly inhibited cell survival, proliferation, migration, and invasion, indicating that KDM4B is essential for the anchorage-independent growth and tumorigenic activity of GBM cells. Mechanistically, KDM4B silencing led to downregulation of the oncoprotein MYC and suppressed the expression of cell cycle proteins and epithelial-to-mesenchymal transition (EMT)-related proteins. Furthermore, we found that KDM4B regulates MYC stability through the E3 ligase complex SCFFBXL3+CRY2 and epigenetically activates the transcription of CCNB1 by removing the repressive chromatin mark histone H3 lysine 9 trimethylation (H3K9me3). Finally, we provide evidence that KDM4B epigenetically activates the transcription of miR-181d-5p, which enhances MYC stability. CONCLUSIONS Our study has uncovered a KDM4B-dependent epigenetic mechanism in the control of tumor progression, providing a rationale for utilizing KDM4B as a promising therapeutic target for the treatment of MYC-amplified GBM.
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Affiliation(s)
- Zhongze Wang
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, No.2 Tiansheng Road, Beibei district, Chongqing, 400715, China
- State Key Laboratory for Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Fujian, 361102, China
| | - Huarui Cai
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, No.2 Tiansheng Road, Beibei district, Chongqing, 400715, China
- Jinfeng Laboratory, Chongqing, 401329, China
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, 400716, China
| | - Zekun Li
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, No.2 Tiansheng Road, Beibei district, Chongqing, 400715, China
| | - Wei Sun
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, No.2 Tiansheng Road, Beibei district, Chongqing, 400715, China
| | - Erhu Zhao
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, No.2 Tiansheng Road, Beibei district, Chongqing, 400715, China.
- Jinfeng Laboratory, Chongqing, 401329, China.
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, 400716, China.
| | - Hongjuan Cui
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, No.2 Tiansheng Road, Beibei district, Chongqing, 400715, China.
- Jinfeng Laboratory, Chongqing, 401329, China.
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, 400716, China.
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Zhao E, Xiong X, Hu H, Li X, Wu C. Phthalates in plastic stationery in China and their exposure risks to school-aged children. Chemosphere 2023; 339:139763. [PMID: 37558002 DOI: 10.1016/j.chemosphere.2023.139763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 07/26/2023] [Accepted: 08/06/2023] [Indexed: 08/11/2023]
Abstract
Phthalates have been strictly banned in children's products in many countries. However, as a product with a high frequency of daily contact with children, stationery is not strictly regulated for phthalates in many countries and the occurrences and risks of phthalates in stationery are rarely reported. In this study, the contents of sixteen types of common phthalates in stationery were determined and the exposure risk of these phthalates to children was also estimated. The total contents of phthalates in all stationery ranged from 5.56 to 3.46 × 105 μg/g, with a median value of 1.48 × 104 μg/g. Polyvinyl chloride (PVC) desk mats (DMs) contained the highest contents of phthalates among all types of stationery. Percutaneous absorption and hand-to-mouth ingestion levels of phthalates for school-age children from the DMs were 2.03 × 10-5 - 10.14 μg/kg-Bw/day and 2.14 × 10-5 - 10.67 μg/kg-Bw/day, respectively. Di-2-ethylhexyl phthalate (DEHP) had the highest proportion, detection rate, and exposure level among all measured phthalates. Our study revealed that phthalates in PVC stationery, especially classroom DMs, at both contents and exposure risks, were higher than those in many other children's plastic products. It was necessary to strengthen the management of plastic stationery from the perspective of materials and phthalates addition.
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Affiliation(s)
- E Zhao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Xiong Xiong
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
| | - Hongjuan Hu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Xin Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Chenxi Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
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Thakur A, Hu X, Zhao E, Lu C, Liu Y, Rustagi Y, Zhang K. Editorial: The role of one-carbon metabolism in cancer progression, therapy, and resistance. Front Oncol 2023; 13:1286790. [PMID: 37810982 PMCID: PMC10552637 DOI: 10.3389/fonc.2023.1286790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 09/07/2023] [Indexed: 10/10/2023] Open
Affiliation(s)
- Abhimanyu Thakur
- Pritzker School of Molecular Engineering, Ben May Department for Cancer Research, University of Chicago, Chicago, IL, United States
| | - Xin Hu
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Erhu Zhao
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Chunwan Lu
- School of Life Sciences, Tianjin University, Tianjin, China
| | - Yanqing Liu
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, United States
| | - Yashika Rustagi
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston, MA, United States
| | - Kui Zhang
- Pritzker School of Molecular Engineering, Ben May Department for Cancer Research, University of Chicago, Chicago, IL, United States
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Shao Y, Wang Q, Lu X, Wang Z, Zhao E, Fang S, Chen J, Kong L, Ghafoor KZ. AutoBar: Automatic Barrier Coverage Formation for Danger Keep Out Applications in Smart City. Sensors (Basel) 2023; 23:7787. [PMID: 37765844 PMCID: PMC10535043 DOI: 10.3390/s23187787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/02/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023]
Abstract
Barrier coverage is a fundamental application in wireless sensor networks, which are widely used for smart cities. In applications, the sensors form a barrier for the intruders and protect an area through intrusion detection. In this paper, we study a new branch of barrier coverage, namely warning barrier coverage (WBC). Different from the classic barrier coverage, WBC has the inverse protect direction, which moves the sensors surrounding a dangerous region and protects any unexpected visitors by warning them away from the dangers. WBC holds a promising prospect in many danger keep out applications for smart cities. For example, a WBC can enclose the debris area in the sea and alarm any approaching ships in order to avoid their damaging propellers. One special feature of WBC is that the target region is usually dangerous and its boundary is previously unknown. Hence, the scattered mobile nodes need to detect the boundary and form the barrier coverage themselves. It is challenging to form these distributed sensor nodes into a barrier because a node can sense only the local information and there is no global information of the unknown region or other nodes. To this end, in response to the newly proposed issue of the formation of barrier cover, we propose a novel solution AutoBar for mobile sensor nodes to automatically form a WBC for smart cities. Notably, this is the first work to trigger the coverage problem of the alarm barrier, wherein the regional information is not pre-known. To pursue the high coverage quality, we theoretically derive the optimal distribution pattern of sensor nodes using convex theory. Based on the analysis, we design a fully distributed algorithm that enables nodes to collaboratively move toward the optimal distribution pattern. In addition, AutoBar is able to reorganize the barrier even if any node is broken. To validate the feasibility of AutoBar, we develop the prototype of the specialized mobile node, which consists of two kinds of sensors: one for boundary detection and another for visitor detection. Based on the prototype, we conduct extensive real trace-driven simulations in various smart city scenarios. Performance results demonstrate that AutoBar outperforms the existing barrier coverage strategies in terms of coverage quality, formation duration, and communication overhead.
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Affiliation(s)
- Ying Shao
- Shanghai Technical Institute of Electronics and Information, Shanghai 201411, China; (Y.S.); (S.F.); (J.C.); (L.K.)
| | - Qiwen Wang
- Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
| | - Xingjian Lu
- School of Computer Sciences and Technology, East China Normal University, Shanghai 200050, China
| | - Zhanquan Wang
- School of Information Science & Engineering, East China University of Science and Technology, Shanghai 200231, China;
| | - E Zhao
- Aerospace Technology Holding Group Co., Ltd., Beijing 100070, China;
| | - Shuang Fang
- Shanghai Technical Institute of Electronics and Information, Shanghai 201411, China; (Y.S.); (S.F.); (J.C.); (L.K.)
| | - Jianxiong Chen
- Shanghai Technical Institute of Electronics and Information, Shanghai 201411, China; (Y.S.); (S.F.); (J.C.); (L.K.)
| | - Linghe Kong
- Shanghai Technical Institute of Electronics and Information, Shanghai 201411, China; (Y.S.); (S.F.); (J.C.); (L.K.)
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Liu R, Zhao E, Yu H, Yuan C, Abbas MN, Cui H. Methylation across the central dogma in health and diseases: new therapeutic strategies. Signal Transduct Target Ther 2023; 8:310. [PMID: 37620312 PMCID: PMC10449936 DOI: 10.1038/s41392-023-01528-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 08/26/2023] Open
Abstract
The proper transfer of genetic information from DNA to RNA to protein is essential for cell-fate control, development, and health. Methylation of DNA, RNAs, histones, and non-histone proteins is a reversible post-synthesis modification that finetunes gene expression and function in diverse physiological processes. Aberrant methylation caused by genetic mutations or environmental stimuli promotes various diseases and accelerates aging, necessitating the development of therapies to correct the disease-driver methylation imbalance. In this Review, we summarize the operating system of methylation across the central dogma, which includes writers, erasers, readers, and reader-independent outputs. We then discuss how dysregulation of the system contributes to neurological disorders, cancer, and aging. Current small-molecule compounds that target the modifiers show modest success in certain cancers. The methylome-wide action and lack of specificity lead to undesirable biological effects and cytotoxicity, limiting their therapeutic application, especially for diseases with a monogenic cause or different directions of methylation changes. Emerging tools capable of site-specific methylation manipulation hold great promise to solve this dilemma. With the refinement of delivery vehicles, these new tools are well positioned to advance the basic research and clinical translation of the methylation field.
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Affiliation(s)
- Ruochen Liu
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, Chongqing, 400715, China
- Jinfeng Laboratory, Chongqing, 401329, China
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, 400716, China
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, 400715, China
| | - Erhu Zhao
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, Chongqing, 400715, China
- Jinfeng Laboratory, Chongqing, 401329, China
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, 400716, China
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, 400715, China
| | - Huijuan Yu
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, Chongqing, 400715, China
| | - Chaoyu Yuan
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, Chongqing, 400715, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, Chongqing, 400715, China
- Jinfeng Laboratory, Chongqing, 401329, China
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, 400716, China
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, 400715, China
| | - Hongjuan Cui
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, Chongqing, 400715, China.
- Jinfeng Laboratory, Chongqing, 401329, China.
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, 400716, China.
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, 400715, China.
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Yang W, Ma Y, Xu H, Zhu Z, Wu J, Xu C, Sun W, Zhao E, Wang M, Reis RL, Kundu SC, Shi X, Xiao B. Mulberry Biomass-Derived Nanomedicines Mitigate Colitis through Improved Inflamed Mucosa Accumulation and Intestinal Microenvironment Modulation. Research (Wash D C) 2023; 6:0188. [PMID: 37426473 PMCID: PMC10328391 DOI: 10.34133/research.0188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 06/13/2023] [Indexed: 07/11/2023]
Abstract
The therapeutic outcomes of conventional oral medications against ulcerative colitis (UC) are restricted by inefficient drug delivery to the colitis mucosa and weak capacity to modulate the inflammatory microenvironment. Herein, a fluorinated pluronic (FP127) was synthesized and employed to functionalize the surface of mulberry leaf-derived nanoparticles (MLNs) loading with resveratrol nanocrystals (RNs). The obtained FP127@RN-MLNs possessed exosome-like morphologies, desirable particle sizes (around 171.4 nm), and negatively charged surfaces (-14.8 mV). The introduction of FP127 to RN-MLNs greatly improved their stability in the colon and promoted their mucus infiltration and mucosal penetration capacities due to the unique fluorine effect. These MLNs could efficiently be internalized by colon epithelial cells and macrophages, reconstruct disrupted epithelial barriers, alleviate oxidative stress, provoke macrophage polarization to M2 phenotype, and down-regulate inflammatory responses. Importantly, in vivo studies based on chronic and acute UC mouse models demonstrated that oral administration of chitosan/alginate hydrogel-embedding FP127@RN-MLNs achieved substantially improved therapeutic efficacies compared with nonfluorinated MLNs and a first-line UC drug (dexamethasone), as evidenced by decreased colonic and systemic inflammation, integrated colonic tight junctions, and intestinal microbiota balance. This study brings new insights into the facile construction of a natural, versatile nanoplatform for oral treatment of UC without adverse effects.
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Affiliation(s)
- Wenjing Yang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Faculty of Materials and Energy,
Southwest University, Chongqing 400715, China
| | - Ya Ma
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
| | - Haiting Xu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
| | - Zhenhua Zhu
- Department of Gastroenterology,
The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Jiaxue Wu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
| | - Cheng Xu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
| | - Wei Sun
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
| | - Min Wang
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Faculty of Materials and Energy,
Southwest University, Chongqing 400715, China
| | - Rui L. Reis
- 3Bs Research Group, I3Bs — Research Institute on Biomaterials, Biodegradables and Biomimetics,
University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco 4805-017, Guimaraes, Portugal
- ICVS/3B’s-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Subhas C. Kundu
- 3Bs Research Group, I3Bs — Research Institute on Biomaterials, Biodegradables and Biomimetics,
University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco 4805-017, Guimaraes, Portugal
- ICVS/3B’s-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Xiaoxiao Shi
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
| | - Bo Xiao
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
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Sun W, Liu R, Gao X, Lin Z, Tang H, Cui H, Zhao E. Targeting serine-glycine-one-carbon metabolism as a vulnerability in cancers. Biomark Res 2023; 11:48. [PMID: 37147729 PMCID: PMC10161514 DOI: 10.1186/s40364-023-00487-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 04/15/2023] [Indexed: 05/07/2023] Open
Abstract
The serine-glycine-one-carbon (SGOC) metabolic pathway is critical for DNA methylation, histone methylation, and redox homeostasis, in addition to protein, lipid, and nucleotide biosynthesis. The SGOC pathway is a crucial metabolic network in tumorigenesis, wherein the outputs are required for cell survival and proliferation and are particularly likely to be co-opted by aggressive cancers. SGOC metabolism provides an integration point in cell metabolism and is of crucial clinical significance. The mechanism of how this network is regulated is the key to understanding tumor heterogeneity and overcoming the potential mechanism of tumor recurrence. Herein, we review the role of SGOC metabolism in cancer by focusing on key enzymes with tumor-promoting functions and important products with physiological significance in tumorigenesis. In addition, we introduce the ways in which cancer cells acquire and use one-carbon unit, and discuss the recently clarified role of SGOC metabolic enzymes in tumorigenesis and development, as well as their relationship with cancer immunotherapy and ferroptosis. The targeting of SGOC metabolism may be a potential therapeutic strategy to improve clinical outcomes in cancers.
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Affiliation(s)
- Wei Sun
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, No.2 Tiansheng Road, Beibei District, 400716, Chongqing, China
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, 400716, China
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, 400715, China
| | - Ruochen Liu
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, No.2 Tiansheng Road, Beibei District, 400716, Chongqing, China
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, 400716, China
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, 400715, China
- Jinfeng Laboratory, Chongqing, 401329, China
| | - Xinyue Gao
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, No.2 Tiansheng Road, Beibei District, 400716, Chongqing, China
| | - Zini Lin
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, No.2 Tiansheng Road, Beibei District, 400716, Chongqing, China
| | - Hongao Tang
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, No.2 Tiansheng Road, Beibei District, 400716, Chongqing, China
| | - Hongjuan Cui
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, No.2 Tiansheng Road, Beibei District, 400716, Chongqing, China.
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, 400716, China.
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, 400715, China.
- Jinfeng Laboratory, Chongqing, 401329, China.
| | - Erhu Zhao
- State Key Laboratory of Resource Insects, Medical Research Institute, Southwest University, No.2 Tiansheng Road, Beibei District, 400716, Chongqing, China.
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, 400716, China.
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, 400715, China.
- Jinfeng Laboratory, Chongqing, 401329, China.
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9
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Sun W, Zhao E, Cui H. Target enzymes in serine‐glycine‐one‐carbon metabolic pathway for cancer therapy. Int J Cancer 2022; 152:2446-2463. [PMID: 36346117 DOI: 10.1002/ijc.34353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 11/10/2022]
Abstract
Cancer cells selectively take up exogenous serine or synthesize serine via the serine synthesis pathway for conversion into intracellular glycine and one-carbon units for nucleotide biosynthesis. In this process, serine-glycine metabolism and the one-carbon cycle play vital roles, which is named serine-glycine-one-carbon metabolism (SGOC). The SGOC pathway is a metabolic network crucial for tumorigenesis with unexpected complexity and clinical importance. Accumulating evidence has demonstrated that metabolic enzymes in SGOC metabolism play key roles in tumorigenesis, metastasis and resistance to therapies. In this review, we focus on the involvement of serine and glycine in the folate-mediated one-carbon pathway during cancer progression and highlight the pathways through which cancer cells acquire and use one-carbon units. In addition, we discuss the recently elucidated effects of SGOC (folate cycle) metabolic enzymes in the occurrence and development of tumors and their links to drug resistance. Inhibitors of target enzymes in the SGOC pathway display promise as investigational new drug candidates for the treatment of tumors.
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Affiliation(s)
- Wei Sun
- State Key Laboratory of Silkworm Genome Biology Southwest University Chongqing China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology Southwest University Chongqing China
- Cancer center, Medical Research Institute Southwest University Chongqing China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology Southwest University Chongqing China
- Cancer center, Medical Research Institute Southwest University Chongqing China
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10
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Zhao E, Bushehri A, Chan B, Wong O, Lee J, Patel T, Kim S, King I, Huang S, Cho J, Hahn E, Hosni A, Kim J, Ringash J, O'Sullivan B, Waldron J, Bissonnette J, Giuliani M, Haibe-Kains B, Malkov V, Tadic T, McNiven A, Hope A, Bratman S. Daily Assessment of On-Treatment Tumor Regression by Cone Beam CT as a Prognostic Dynamic Biomarker in Nasopharyngeal Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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11
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Zhang G, Tan R, Wan S, Yang R, Hu X, Zhao E, Ding X, Zhang J, Li B, Liang P, Cui H. HECTD3 regulates the tumourigenesis of glioblastoma by polyubiquitinating PARP1 and activating EGFR signalling pathway. Br J Cancer 2022; 127:1925-1938. [PMID: 36088509 PMCID: PMC9681879 DOI: 10.1038/s41416-022-01970-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 08/18/2022] [Accepted: 08/23/2022] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND The E3 ubiquitin ligase HECTD3 is a homologue of the E6-related protein carboxyl terminus, which plays a crucial role in biological processes and tumourigenesis. However, the functional characterisation of HECTD3 in glioblastoma is still elusive. METHODS Determination of the functional role of HECTD3 in glioblastoma was made by a combination of HECTD3 molecular pattern analysis from human glioblastoma databases and subcutaneous and in situ injections of tumours in mice models. RESULTS This study reports that the DOC domain of HECTD3 interacts with the DNA binding domain of PARP1, and HECTD3 mediated the K63-linked polyubiquitination of PARP1 and stabilised the latter expression. Moreover, the Cysteine (Cys) 823 (ubiquitin-binding site) mutation of HECTD3 significantly reduced PARP1 polyubiquitination and HECTD3 was involved in the recruitment of ubiquitin-related molecules to PARP1 ubiquitin-binding sites (Lysines 209 and 221, respectively). Lastly, activation of EGFR-mediated signalling pathways by HECTD3 regulates PARP1 polyubiquitination. CONCLUSION Our results unveil the potential role of HECTD3 in glioblastoma and strongly preconise further investigation and consider HECTD3 as a promising therapeutic marker for glioblastoma treatment.
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Affiliation(s)
- Guanghui Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, 400716, Chongqing, China
| | - Ruoyue Tan
- State Key Laboratory of Silkworm Genome Biology, Southwest University, 400716, Chongqing, China
| | - Sicheng Wan
- State Key Laboratory of Silkworm Genome Biology, Southwest University, 400716, Chongqing, China
| | - Rui Yang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, 400716, Chongqing, China
| | - Xiaosong Hu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, 400716, Chongqing, China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, 400716, Chongqing, China
| | - Xiangfei Ding
- Cancer Center, Medical Research Institute, Southwest University, 400716, Chongqing, China
| | - Jingping Zhang
- Cancer Center, Medical Research Institute, Southwest University, 400716, Chongqing, China
| | - Biao Li
- Cancer Center, Medical Research Institute, Southwest University, 400716, Chongqing, China
| | - Ping Liang
- Department of Neurosurgery, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, 400014, Chongqing, China.
- Chongqing Key Laboratory of Pediatrics, 400014, Chongqing, China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Southwest University, 400716, Chongqing, China.
- Cancer Center, Medical Research Institute, Southwest University, 400716, Chongqing, China.
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12
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Zhao E, Rostami A, Zhao Z, Huang S, Malkov V, Cho J, de Almeida J, Giuliani M, Goldstein D, Hahn E, Han K, Hope A, Hosni A, Kim J, Liu F, Liu G, Ringash J, O'Sullivan B, Siu L, Spreafico A, Waldron J, Bratman S. Circulating HPV DNA Kinetics and Clinical Outcomes in a Large Cohort of Radiotherapy-Treated p16-Positive Oropharyngeal Cancers. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Tsang J, Zhao E, Plawat R, Cloughesy T, Nathanson D. The CNS-penetrant EGFR inhibitor, ERAS-801, shows promising nonclinical activity in a CNS metastases model of EGFR mutant NSCLC. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00885-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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14
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Chen L, Huang F, Kei C, Zhang J, Sang J, Yang Y, Kuang R, Xiong X, Li Q, Liu Y, Qin Q, Zhao E, Alépée N, Ouedraogo G, Li N, Cai Z. Transferability and reproducibility of the EpiSkin™ Micronucleus Assay. Mutagenesis 2022; 37:173-181. [PMID: 36067354 DOI: 10.1093/mutage/geac014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 08/18/2022] [Indexed: 11/12/2022] Open
Abstract
A novel in vitro 3D micronucleus assay was developed in China using the EpiSkin™ 3D human skin model. This EpiSkin™ Micronucleus Assay showed good predictivity and reproducibility during internal validation and is expected to contribute to in vitro genotoxicity testing as a follow-up for positive results from 2D micronucleus assay. Having developed the assay in one laboratory, further work focused on the transferability and inter-laboratory reproducibility in two additional Chinese authority laboratories (Guangdong Provincial Center for Disease Control and Prevention and Zhejiang Institute for Food and Drug Control). Formal training was provided for both laboratories, which resulted in good transferability based on the results of two positive compounds, such as mitomycin C and vinblastine. Independent experiments were then performed, and inter-laboratory reproducibility was checked using 2-acetylaminofluorene, 5-fluorouracil, 2,4-dichlorophenol, and d-limonene. The dose-responses of the positive control chemical, mitomycin C, were similar to those of the developing laboratory, and all test chemicals were correctly classified by all laboratories. Overall, there was a good transferability as well as intra- and inter-laboratory reproducibility of the EpiSkin™ Micronucleus Assay. This study further confirmed the assay's robustness and provided confidence to enter following validation stages for scientific acceptance.
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Affiliation(s)
- Lizao Chen
- Advanced Research, L'Oréal Research & Innovation China, 550 Jinyu Road, 201206 Shanghai, China
| | - Fang Huang
- Guangdong Provincial Center for Disease Control and Prevention, 160 Qunxian Road, 511430 Guangzhou, Guangdong, China
| | - CaiChun Kei
- Guangdong Provincial Center for Disease Control and Prevention, 160 Qunxian Road, 511430 Guangzhou, Guangdong, China
| | - Jinsong Zhang
- Zhejiang Institute for Food and Drug Control (NMPA Key Laboratory for Animal Alternative Testing Technology of Cosmetics), 325 Pingle Road, 310000 Hangzhou, Zhejiang, China
| | - Jing Sang
- Zhejiang Institute for Food and Drug Control (NMPA Key Laboratory for Animal Alternative Testing Technology of Cosmetics), 325 Pingle Road, 310000 Hangzhou, Zhejiang, China
| | - Ying Yang
- Guangdong Provincial Center for Disease Control and Prevention, 160 Qunxian Road, 511430 Guangzhou, Guangdong, China
| | - Rong Kuang
- Zhejiang Institute for Food and Drug Control (NMPA Key Laboratory for Animal Alternative Testing Technology of Cosmetics), 325 Pingle Road, 310000 Hangzhou, Zhejiang, China
| | - Xikun Xiong
- Guangdong Provincial Center for Disease Control and Prevention, 160 Qunxian Road, 511430 Guangzhou, Guangdong, China
| | - Qing Li
- Guangdong Provincial Center for Disease Control and Prevention, 160 Qunxian Road, 511430 Guangzhou, Guangdong, China
| | - Yanfeng Liu
- Advanced Research, L'Oréal Research & Innovation China, 550 Jinyu Road, 201206 Shanghai, China
| | - Qin Qin
- Advanced Research, L'Oréal Research & Innovation China, 550 Jinyu Road, 201206 Shanghai, China
| | - E Zhao
- Advanced Research, L'Oréal Research & Innovation China, 550 Jinyu Road, 201206 Shanghai, China
| | - Nathalie Alépée
- Advanced Research, L'Oréal Research & Innovation France, 1 Avenue Eugène Schueller, 93600 Aulnay-Sous-Bois, France
| | - Gladys Ouedraogo
- Advanced Research, L'Oréal Research & Innovation France, 1 Avenue Eugène Schueller, 93600 Aulnay-Sous-Bois, France
| | - Nan Li
- Advanced Research, L'Oréal Research & Innovation China, 550 Jinyu Road, 201206 Shanghai, China
| | - Zhenzi Cai
- Advanced Research, L'Oréal Research & Innovation China, 550 Jinyu Road, 201206 Shanghai, China
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15
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Cai H, Wang Z, Tang W, Ke X, Zhao E. Recent advances of the mammalian target of rapamycin signaling in mesenchymal stem cells. Front Genet 2022; 13:970699. [PMID: 36110206 PMCID: PMC9468880 DOI: 10.3389/fgene.2022.970699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/11/2022] [Indexed: 11/22/2022] Open
Abstract
Mammalian target of rapamycin (mTOR) is a serine/threonine kinase involved in a variety of cellular functions, such as cell proliferation, metabolism, autophagy, survival and cytoskeletal organization. Furthermore, mTOR is made up of three multisubunit complexes, mTOR complex 1, mTOR complex 2, and putative mTOR complex 3. In recent years, increasing evidence has suggested that mTOR plays important roles in the differentiation and immune responses of mesenchymal stem cells (MSCs). In addition, mTOR is a vital regulator of pivotal cellular and physiological functions, such as cell metabolism, survival and ageing, where it has emerged as a novel therapeutic target for ageing-related diseases. Therefore, the mTOR signaling may develop a large impact on the treatment of ageing-related diseases with MSCs. In this review, we discuss prospects for future research in this field.
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Affiliation(s)
- Huarui Cai
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Zhongze Wang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Wenhan Tang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
| | - Xiaoxue Ke
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
- *Correspondence: Xiaoxue Ke, ; Erhu Zhao,
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
- *Correspondence: Xiaoxue Ke, ; Erhu Zhao,
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16
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Huang PQ, Deng JW, Li Y, Liao ZB, Zhao E, Tian YC, Tu YD, Li DL, Jin JW, Zhou CX, Wu RH, Gan LS. Terpenoids from the twigs and leaves of Aglaia elaeagnoidea and their chemotaxonomic significance. BIOCHEM SYST ECOL 2022. [DOI: 10.1016/j.bse.2022.104427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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17
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Liu Q, Hu H, Xiong X, Zhao E, Wang K, Wu C. Urban natural wetland as a sink for microplastics: A case from Lalu Wetland in Tibet, China. Sci Total Environ 2022; 828:154399. [PMID: 35276170 DOI: 10.1016/j.scitotenv.2022.154399] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/27/2022] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
Microplastics have been reported in a wide range of aquatic habitats. The wetlands are considered to be important roles in microplastic migration in water bodies. Nevertheless, knowledge about the occurrence and fate of microplastics in urban natural wetland is still limited for us to better understand how they become a sink of microplastics. In this study, the distribution and characteristics of microplastics in surface water, surface sediments, and sediment cores of the Lalu Wetland watershed, China's highest urban wetland, were investigated in August 2020 and January 2021. The abundances of microplastics in the surface water were 0.06-3.05 MPs/L. Microplastic abundance in the surface sediment and sediment core was 0.01-1.10 MPs/g and 0-16.23 MPs/g, respectively. The abundance of microplastics in the water was significantly lower in the wetland than that in the channel in the watershed. Comparing the wetland inlet and outlet water, the microplastic interception rates were 53% in January and 95% in August. The characteristics and seasonal variation of microplastics in the Lalu Wetland implied that urban natural wetlands were good at intercepting microplastics, and vegetation growth might play an important role on the interception of microplastics by the wetland. The increasing of microplastics from bottom to top in the sediment cores of Lalu Wetland also indicated that the ecological risks of microplastics accumulation in sediments of urban natural wetland required further attention.
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Affiliation(s)
- Qian Liu
- School of Science, Tibet University, Lhasa 850000, China; State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Hongjuan Hu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Xiong Xiong
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - E Zhao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Kehuan Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Chenxi Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
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18
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Adamson M, Zhao E, Xia D, Colicino E, Monaro M, Hitching R, Harris O, Greenhalgh M. Combining international survey datasets to identify indicators of stress during the COVID-19 pandemic: A machine learning approach to improve generalization. Eur Psychiatry 2022. [PMCID: PMC9564497 DOI: 10.1192/j.eurpsy.2022.951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction The magnitude and exceptional opportunity to research the psychological distress of shelter in place resulted in a publication frenzy on a smorgasbord of research studies of variable scientific robustness. Confinement, fear of contagion, social isolation, financial hardship, etc. equated to stratospheric stress levels. The decline in protective factors as a function of quarantine anecdotally reflected historic rates of anxiety and depression. Objectives In this study, we combined 12 variegate datasets and developed an algorithm to build a model to identify key predictors of pandemic-related stress with high accuracy and generalizability. Methods This study reports on existing published data. We first describe the International (Adamson et al., 2020) and then the Italian dataset (Flesia et al., 2020). The time-frame (first wave of lockdown), method (survey), measurement tool (Perceived Stress Scale), and outcome measures were extremely similar to enable consolidation of datasets (see Figure1). The Flesia et al., (2020) data set was integrated into the Adamson et al., (2020) dataset as the first step towards data validation construction of the ML predictive model. Results We aim to demonstrate the strength of combining cross-cultural datasets, and the applicability of ML algorithms to facilitate the process and generate a predictive model that identifies and validates key predictors of pandemic-related stress and accommodates for interaction with demographic, cultural, and other mitigating factors while concurrently having high generalizability. Conclusions We believe our model provides clinicians, researchers, and decision-makers with evidence to investigate the moderators and mediators of stress, and introduce novel interventions to mitigate the long-term effects of the COVID-19 pandemic. Disclosure No significant relationships.
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19
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Kausar S, Abbas MN, Gul I, Liu R, Li Q, Zhao E, Lv M, Cui H. Molecular Identification of Two DNA Methyltransferase Genes and Their Functional Characterization in the Anti-Bacterial Immunity of Antheraea pernyi. Front Immunol 2022; 13:855888. [PMID: 35651618 PMCID: PMC9149099 DOI: 10.3389/fimmu.2022.855888] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 04/11/2022] [Indexed: 12/29/2022] Open
Abstract
Under different physiological conditions, such as microbial infection, epigenetic mechanisms regulate genes at the transcription level in living organisms. DNA methylation is a type of epigenetic mechanism in which DNA methyltransferases modify the expression of target genes. Here, we identified a full-length sequence of DNMT-1 and DNMT-2 from the Chinese oak silkworm, A. pernyi, which was highly similar to the homologous sequences of Bombyx mori. ApDNMT-1 and ApDNMT-2 have unique domain architectures of insect DNMTs, highlighting their conserved functions in A. pernyi. ApDNMT-1 and ApDNMT-2 were found to be widely expressed in various tissues, with the highest levels of expression in hemocytes, the ovary, testis, and fat bodies. To understand the biological role of these genes in microbial resistance, we challenged the fifth instar larvae of A. pernyi by administrating Gram-positive and Gram-negative bacteria and fungi. The results revealed that transcript levels of ApDNMT-1 and ApDNMT-2 were increased compared to the control group. The inhibition of these genes by a DNMTs inhibitor [5-azacytidine (5-AZA)] significantly reduced bacterial replication and larvae mortality. In addition, 5-AZA treatment modified the expression patterns of antimicrobial peptides (AMPs) in the A. pernyi larvae. Our results suggest that ApDNMT-1 and ApDNMT-2 seem to have a crucial role in innate immunity, mediating antimicrobial peptide responses against bacterial infection in A. pernyi.
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Affiliation(s)
- Saima Kausar
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Isma Gul
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Ruochen Liu
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Qianqian Li
- Department of Psychology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Muhan Lv
- Department of Gastroenterology, The Affliated Hospital of Southwest Medical University, Luzhao, China
- *Correspondence: Muhan Lv, ; Hongjuan Cui,
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
- *Correspondence: Muhan Lv, ; Hongjuan Cui,
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20
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Wang Z, Cai H, Zhao E, Cui H. The Diverse Roles of Histone Demethylase KDM4B in Normal and Cancer Development and Progression. Front Cell Dev Biol 2022; 9:790129. [PMID: 35186950 PMCID: PMC8849108 DOI: 10.3389/fcell.2021.790129] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/31/2021] [Indexed: 01/05/2023] Open
Abstract
Histone methylation status is an important process associated with cell growth, survival, differentiation and gene expression in human diseases. As a member of the KDM4 family, KDM4B specifically targets H1.4K26, H3K9, H3K36, and H4K20, which affects both histone methylation and gene expression. Therefore, KDM4B is often regarded as a key intermediate protein in cellular pathways that plays an important role in growth and development as well as organ differentiation. However, KDM4B is broadly defined as an oncoprotein that plays key roles in processes related to tumorigenesis, including cell proliferation, cell survival, metastasis and so on. In this review, we discuss the diverse roles of KDM4B in contributing to cancer progression and normal developmental processes. Furthermore, we focus on recent studies highlighting the oncogenic functions of KDM4B in various kinds of cancers, which may be a novel therapeutic target for cancer treatment. We also provide a relatively complete report of the progress of research related to KDM4B inhibitors and discuss their potential as therapeutic agents for overcoming cancer.
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Affiliation(s)
- Zhongze Wang
- State Key Laboratory of Silkworm Genome Biology, Medical Research Institute, Southwest University, Chongqing, China
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, China
| | - Huarui Cai
- State Key Laboratory of Silkworm Genome Biology, Medical Research Institute, Southwest University, Chongqing, China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, Medical Research Institute, Southwest University, Chongqing, China
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, China
- *Correspondence: Erhu Zhao, ; Hongjuan Cui,
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Medical Research Institute, Southwest University, Chongqing, China
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, China
- *Correspondence: Erhu Zhao, ; Hongjuan Cui,
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21
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Zhou M, Zhao E, Huang R. Association of urinary arsenic with insulin resistance: Cross-sectional analysis of the National Health and Nutrition Examination Survey, 2015-2016. Ecotoxicol Environ Saf 2022; 231:113218. [PMID: 35065504 DOI: 10.1016/j.ecoenv.2022.113218] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/02/2022] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Long-term arsenic exposure is associated with diabetes in adults, the mechanism of which involves insulin resistance. The relationship between arsenic and insulin resistance in adults is unclear. We analyzed the relationship between urinary arsenic and insulin resistance in US adults. RESULTS We identified 815 adults aged 20-79 years who participated in the 2015-2016 National Health and Nutrition Examination Survey (NHANES). Urinary arsenic, fasting glucose, serum insulin, and other key covariates were obtained from the NHANES data. The association between urinary arsenic and insulin resistance was evaluated by analyzing the urinary arsenic level and homeostasis model assessment-insulin resistance. The median total urinary arsenic level was 6.82 µg/L. After adjusting for possible confounding factors (gender, age, and body mass index), the 80th and 20th percentile odds ratio (OR) was 1.41 (95% confidence interval [CI] 1.07, 1.87); the OR of the 70th and 30th percentiles was 1.41 (95% CI 1.08, 1.84). CONCLUSIONS In most subgroups, after similar adjustment, the relationship between urine total arsenic and insulin resistance remained. Total arsenic exposure in urine may be associated with insulin resistance. Evidence from larger and more adequately powered cohort studies is needed to confirm our results.
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Affiliation(s)
- Meiling Zhou
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, PR China.
| | - E Zhao
- Department of Chronic and Non-communicable Diseases Control, City Center for Disease Control and Prevention, Jingyi Road 58, Urumqi 830026, PR China.
| | - Ruixue Huang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, PR China.
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22
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Tang X, Zhao E, Liu C, Xing W, Liu X, Zheng Y, Li H. P09.03 Validation of a Real-World Mortality Endpoint for Advanced Non-Small Cell Lung Cancer Patients in China. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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23
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Abstract
Tigecycline is a novel glycylcycline antibacterial drug, which shows both antibiotic function and anti-tumor activity. This review summarizes the single and combined use of tigecycline for tumor treatment and the underpinning mechanisms. As an inhibitor for mitochondrial DNA translation, tigecycline affects the proliferation, migration, and invasion of tumor cells mainly through inhibiting mitochondrial protein synthesis and inducing mitochondrial dysfunction. Although the effect of tigecycline monotherapy is controversial, the efficacy of combined use of tigecycline is satisfactory. Therefore, it is important to explore the molecular mechanisms underpinning the anti-tumor activity of tigecycline, with the aim to use it as a cheap and effective new anti-tumor drug.
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Affiliation(s)
- Erhu Zhao
- College of Sericulture, Textile and Biomass Sciences, State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Chongqing 400715, China.,Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing 400715, China
| | - Xue Wang
- Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing 400014, China
| | - Juanli Ji
- College of Sericulture, Textile and Biomass Sciences, State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China.,Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing 400715, China
| | - Zhongze Wang
- College of Sericulture, Textile and Biomass Sciences, State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China.,Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing 400715, China
| | - Yi Wang
- The No. 9 Hospital of Chongqing (The Affiliated Hospital of Southwest University), Chongqing 400700, China
| | - Hongjuan Cui
- College of Sericulture, Textile and Biomass Sciences, State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Chongqing 400715, China.,Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing 400715, China
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Taylor K, Zou J, Burgener J, Zhao E, Torti D, Oliva M, Spreafico A, Hansen A, Jang R, McDade S, Coyle V, Lawler M, Elimova E, Bratman S, Siu L. 886P Circulating tumor DNA kinetics in recurrent/metastatic head & neck squamous cell cancer (R/M HNSCC) patients. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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25
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Zhao E, Lowres NL, Tofler JT, Naismith SN, Baumman AB, Gallagher RG. Cognitive impairment, health literacy, secondary prevention capacity and behaviours in acute coronary syndrome patients at early discharge: a prospective observational study. Eur J Prev Cardiol 2021. [DOI: 10.1093/eurjpc/zwab061.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Foundation. Main funding source(s): the Vanguard Grant, Heart Foundation
Background
Cognitive impairment (CI) following acute coronary syndrome (ACS) is poorly understood.
Purpose
We aimed to explore the prevalence of CI in ACS patients four weeks post hospitalisation, the association with secondary prevention capacity and behaviours.
Methods
ACS inpatients who were free from visual deficits and dementia diagnoses were recruited. The post four weeks hospitalisation assessments included cognitive screening (Montreal Cognitive Assessment [MoCA], and Hopkins Verbal Learning Test [HVLT]), health literacy (Newest Vital Sign), depression (Patient Health Questionnaire-9), physical activity (Physical Activity Scale for the Elderly and Fitbit-Flex activity tracker), medication knowledge and adherence, sociodemographic and clinical factors.
Results
Participants (n = 45) had an average age of 65.07 ± 11.21 years, 82.2% were male, 64.4% were married/partnered and 82.2% had high school education or higher. CI occurred in 28.9% using either instrument, 20% using MoCA only and 15.6% using HVLT only. Cognitive domains affected were delayed recall (median = 5, range = 0-6) and new verbal learning and memory (15.6%). Adequate health literacy was less common in patients with CI (61.4%) than patients with normal cognition (90.3%, p = 0.024). Furthermore, patients with CI had trends for lower levels of secondary prevention capacity and behaviours, including fewer patients with high medication adherence, unlikely to be married or have an intimate partner, more depressive symptoms and lower levels of physical activity.
Conclusions
CI occurs in almost 30% of ACS patients four weeks post discharge, however a single screening tool is not sufficient to identify all cases. CI affected delayed recall, new verbal learning and memory; was associated with worse health literacy and may have potential implications for secondary prevention capacity.
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Affiliation(s)
- E Zhao
- University of Sydney, Sydney, Australia
| | - NL Lowres
- University of Sydney, Sydney, Australia
| | - JT Tofler
- royal north shore hospital, Sydney, Australia
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Bai L, Ma Y, Wang X, Feng Q, Zhang Z, Wang S, Zhang H, Lu X, Xu Y, Zhao E, Cui H. Polydatin Inhibits Cell Viability, Migration, and Invasion Through Suppressing the c-Myc Expression in Human Cervical Cancer. Front Cell Dev Biol 2021; 9:587218. [PMID: 33912552 PMCID: PMC8072354 DOI: 10.3389/fcell.2021.587218] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 03/04/2021] [Indexed: 12/29/2022] Open
Abstract
Polydatin, an active ingredient from the roots of Polygonum cuspidatum, is considered to have protective effects on the cardiovascular system and liver. In this study, we demonstrated that polydatin has antitumor activity against human cervical cancer. Polydatin efficiently inhibited cervical cancer cell proliferation by regulating cell cycle-related proteins including p21, p27, CDK2, CDK4, Cyclin D1, and Cyclin E1. Furthermore, polydatin suppressed cell invasion and migration by regulating epithelial-mesenchymal transition (EMT) markers, including E-cadherin, N-cadherin, Snail and Slug. The c-Myc, as a proto-oncogene, is considered to be closely associated with the proliferation and metastasis of tumor cells. After polydatin treatment, the protein expression of c-Myc showed a significant decrease. Based on these data, we overexpressed c-Myc in cervical cancer cells and observed that the overexpression of c-Myc rescued the inhibitory effect of polydatin on cell proliferation and metastasis. These results indicated that polydatin can inhibit cell proliferation and metastasis through suppressing the c-Myc expression in human cervical cancer.
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Affiliation(s)
- Longchang Bai
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China.,Westa College, Southwest University, Chongqing, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, China
| | - Yingkang Ma
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China.,Westa College, Southwest University, Chongqing, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, China
| | - Xue Wang
- Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, China
| | - Qiongni Feng
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China.,Westa College, Southwest University, Chongqing, China
| | - Zhining Zhang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China.,Westa College, Southwest University, Chongqing, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, China
| | - Sijie Wang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China.,Westa College, Southwest University, Chongqing, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, China
| | - Huijie Zhang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China.,Westa College, Southwest University, Chongqing, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, China
| | - Xinyu Lu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China.,Westa College, Southwest University, Chongqing, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, China
| | - Yonghui Xu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China.,Cancer Center, Medical Research Institute, Southwest University, Chongqing, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China.,Cancer Center, Medical Research Institute, Southwest University, Chongqing, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, China
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Gallagher R, Zhao E, Naismith S, Tofler G, Bauman A. Being married/having an intimate partner/being has protective effects for mild cognitive impairment in acute coronary syndrome patients. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Cardiovascular disease (CVD) is a leading cause of mortality and morbidity and is known to contribute to cognitive impairment, a condition common in CVD patients. Cognitive impairment (CI) is important to detect, manage and accommodate because it limits the capacity of CVD patients to learn about secondary prevention and engage in appropriate self-care including lifestyle change.
Purpose
Therefore this study aimed to determine the prevalence and predictors of cognitive impairment in acute coronary syndrome (ACS) patients during hospital admission.
Methods
ACS (myocardial infarction, unstable angina) inpatients (n=81) who did not have a neurocognitive diagnosis were recruited to a prospective descriptive study in 2019. Cognitive performance was assessed using the Montreal Cognitive Assessment (MoCA) and the Hopkins Verbal Learning Test (HVLT).
Results
The sample had an age mean of 63.49±10.86 (range 40–89) years, was mostly male (82.7%) and 50.6% were university educated. MI occurred in 56.8%, equally STEMI (28.4%) and nSTEMI (28.4%) with 70.4% treated by coronary intervention.
The mean education adjusted MOCA score was 25.73±3.05 (range 18–31) and 48.1% were classified as having mild CI (18–26). The domain with the worst performance was delayed recall/memory domain at mean 2.58±1.77 (of potential 0–5 points). The mean unadjusted recall score on HVLT was 19.56±6.18 (range 0–32), the mean z-score −0.69±1.21 (range −4.59–1.87) and 40.7% were classified as having mild CI (age and education adjusted Z-score ≥−1). Mild CI was classified by both MOCA and HVLT (both adjusted) in 24.7%.
Patients classified as having mild CI (MOCA) were significantly older (66.87 versus 60.36 years, p=0.006) and less likely and to be married or have an intimate partner (21% versus 32% p=0.039). When all factors were taken into account using multiple linear regression, higher MOCA scores in patients who were married/partnered (B=1.6) and lower scores with advancing age (B=−0.08).
Conclusions
Mild CI and decreased delayed recall is prevalent in ACS patients and patient education strategies need to be accommodate this. Being married/partnered may have protective effects, therefore additional support may need to be directed to single patients.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): National Heart Foundation of Australia Vanguard Award
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Affiliation(s)
| | - E Zhao
- The University of Sydney, Sydney, Australia
| | - S Naismith
- The University of Sydney, Sydney, Australia
| | - G Tofler
- Royal North Shore Hospital, Ryde Hospital, Sydney, Australia
| | - A Bauman
- The University of Sydney, Sydney, Australia
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Zhao E, Feng L, Bai L, Cui H. NUCKS promotes cell proliferation and suppresses autophagy through the mTOR-Beclin1 pathway in gastric cancer. J Exp Clin Cancer Res 2020; 39:194. [PMID: 32958058 PMCID: PMC7504682 DOI: 10.1186/s13046-020-01696-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 09/03/2020] [Indexed: 12/14/2022]
Abstract
Background Nuclear casein kinase and cyclin-dependent kinase substrate (NUCKS), a novel gene first reported in 2001, is a member of the high mobility group (HMG) family. Although very little is known regarding the biological roles of NUCKS, emerging clinical evidence suggests that the NUCKS protein can be used as a biomarker and therapeutic target in various human ailments, including several types of cancer. Methods We first assessed the potential correlation between NUCKS expression and gastric cancer prognosis. Then functional experiments were conducted to evaluate the effects of NUCKS in cell proliferation, cell cycle, apoptosis and autophagy. Finally, the roles of NUCKS on gastric cancer were examined in vivo. Results We found that NUCKS was overexpressed in gastric cancer patients with poor prognosis. Through manipulating NUCKS expression, it was observed to be positively associated with cell proliferation in vitro and in vivo. NUCKS knockdown could induce cell cycle arrest and apoptosis. Then further investigation indicated that NUCKS knockdown could also significantly induce a marked increase in autophagy though the mTOR-Beclin1 pathway, which could be was rescued by NUCKS restoration. Moreover, silencing Beclin1 in NUCKS knockdown cells or adding rapamycin in NUCKS-overexpressed cells also confirmed these results. Conclusions Our findings revealed that NUCKS functions as an oncogene and an inhibitor of autophagy in gastric cancer. Thus, the downregulation or inhibition of NUCKS may be a potential therapeutic strategy for gastric cancer.
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Affiliation(s)
- Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, No.2 Tiansheng Road, Beibei District, Chongqing, 400716, China.,Cancer Center, Reproductive Medicine Center, Medical Research Institute, Southwest University, Chongqing, 400716, China.,NHC Key Laboratory of Birth Defects and Reproductive Health (Chongqing Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute), Chongqing, 400020, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, 400716, China
| | - Liying Feng
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, No.2 Tiansheng Road, Beibei District, Chongqing, 400716, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, 400716, China.,Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, 400715, China
| | - Longchang Bai
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, No.2 Tiansheng Road, Beibei District, Chongqing, 400716, China.,Cancer Center, Reproductive Medicine Center, Medical Research Institute, Southwest University, Chongqing, 400716, China.,Westa College, Southwest University, Chongqing, 400716, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, No.2 Tiansheng Road, Beibei District, Chongqing, 400716, China. .,Cancer Center, Reproductive Medicine Center, Medical Research Institute, Southwest University, Chongqing, 400716, China. .,NHC Key Laboratory of Birth Defects and Reproductive Health (Chongqing Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute), Chongqing, 400020, China. .,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, 400716, China. .,Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing, 400715, China.
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29
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Zhao E, Zhou C, Chen S. A signature of 14 immune-related gene pairs predicts overall survival in gastric cancer. Clin Transl Oncol 2020; 23:265-274. [PMID: 32519178 DOI: 10.1007/s12094-020-02414-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 05/26/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Increasing evidence demonstrates that immune signature plays an important role in the prognosis of gastric cancer (GC). We aimed to develop and validate a robust immune-related gene pair (IRGP) signature for predicting the prognosis of GC patients. METHODS RNA-Seq data and corresponding clinical information of GC cohort were downloaded from the TCGA (The Cancer Genome Atlas Program) data portal. GSE84437 and GSE15459 microarray datasets were included as independent external cohorts. Least absolute shrinkage and selection operator (LASSO) regression analysis was used to build the best prognostic signature. All patients were classified into the high immune-risk and low immune-risk groups via the optimal cut-off of the signature scores determined by time-dependent receiver-operating characteristic (ROC) curve analysis. The prognostic role of the signature was measured by a log-rank test and a Cox proportional hazard regression model. RESULTS 14 immune gene pairs consisting of 25 unique genes were identified to construct the immune prognostic signature. High immune-risk groups showed poor prognosis in the TCGA datasets and GSE84437 datasets as well as in the GSE15459 datasets (all P < 0.001). The 14-IRGP signature was an independent prognostic factor of GC after adjusting for other clinical factors (P < 0.05). Functional analysis revealed that DNA integrity checkpoint, DNA replication, T-cell receptor signaling pathway, and B-cell receptor signaling pathway were enriched in the low immune-risk groups. B cells naive and Monocytes were significantly higher in the high-risk group, and B-cell memory and T-cell CD4 memory activated were significantly higher in the low-risk group. The prognostic signature based on IRGP reflected infiltration by several types of immune cells. CONCLUSION The novel proposed clinical-immune signature is a promising biomarker for prediction overall survival in patients with GC and providing new insights into the treatment strategies.
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Affiliation(s)
- E Zhao
- Department of Structural Heart Disease, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China
| | - C Zhou
- The Hormel Institute, University of Minnesota, Austin, MN, 55912, USA
| | - S Chen
- Department of Gastroenterology, the First Clinical Medical School of Shaanxi University of Chinese Medicine, NO.2 Weiyang West Road, Qindu District, Xianyang, 712000, Shaanxi Province, People's Republic of China.
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30
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Abbas MN, Kausar S, Zhao E, Cui H. Suppressors of cytokine signaling proteins as modulators of development and innate immunity of insects. Dev Comp Immunol 2020; 104:103561. [PMID: 31785267 DOI: 10.1016/j.dci.2019.103561] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 11/21/2019] [Accepted: 11/22/2019] [Indexed: 06/10/2023]
Abstract
The suppressors of cytokine signaling (SOCS) are a family of intracellular molecules. Many members of this family have been reported to be involved in various physiological processes in invertebrates and vertebrates (e.g., developmental process and immune response). The functions of SOCS molecules seem to remain conserved in animals throughout evolutionary history. The members of the SOCS family play vital roles in the physiological processes by regulating the extent and duration of signaling activities of both Janus Kinase-Signal Transducer and Activators of Transcription (JAK-STAT) and epidermal growth factor receptor (EGFR) pathways in vivo. So far, in different insect species, a variable number of SOCS and SOCS box domain-containing proteins have been identified. These proteins are categorized into different types based on their sequence diversification, leading to an alteration in structure and regulatory function. The biological roles of the many SOCS proteins have been established as a negative or positive regulator of the signaling pathways, as mentioned earlier. Here, we discussed the existing knowledge on the SOCS proteins and their involvement in different biological functions in insects, and future perspectives to further elucidate their physiological roles.
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Affiliation(s)
- Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400715, China; Key Laboratory of Sericulture Biology and Genetic Breeding, Ministry of Agricultural and Rural Affairs, Southwest University, Chongqing, 400715, China; Medical Research Institute, Southwest University, Chongqing, 400715, China.
| | - Saima Kausar
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400715, China; Key Laboratory of Sericulture Biology and Genetic Breeding, Ministry of Agricultural and Rural Affairs, Southwest University, Chongqing, 400715, China; Medical Research Institute, Southwest University, Chongqing, 400715, China.
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400715, China; Key Laboratory of Sericulture Biology and Genetic Breeding, Ministry of Agricultural and Rural Affairs, Southwest University, Chongqing, 400715, China; Medical Research Institute, Southwest University, Chongqing, 400715, China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400715, China; Key Laboratory of Sericulture Biology and Genetic Breeding, Ministry of Agricultural and Rural Affairs, Southwest University, Chongqing, 400715, China; Medical Research Institute, Southwest University, Chongqing, 400715, China.
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31
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Zhao E, Hou J, Cui H. Serine-glycine-one-carbon metabolism: vulnerabilities in MYCN-amplified neuroblastoma. Oncogenesis 2020; 9:14. [PMID: 32034121 PMCID: PMC7007431 DOI: 10.1038/s41389-020-0200-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/18/2020] [Accepted: 01/24/2020] [Indexed: 01/05/2023] Open
Abstract
In a recent study published in Cancer Research, Xia and colleagues reported that, in cancer, constituents in serine–glycine-one-carbon (SGOC) metabolism exhibit enhanced transcriptional activation and are increasingly utilised, which results in more glucose-derived carbon to serine–glycine biosynthesis. The current work identifies an MYCN-dependent metabolic vulnerability and shows a variety of associations between metabolic reprogramming and enhanced sensitivity to metabolic stress, which may lead the way to unlocking new anticancer therapies. Here, we summarised new insights into the role of SGOC metabolism in the progression of neuroblastoma (NB) with highly activated SGOC metabolism.
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Affiliation(s)
- Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, 400716, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, 400715, Chongqing, China
| | - Jianbing Hou
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, 400716, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, 400715, Chongqing, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400716, China. .,Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China. .,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, 400716, China. .,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, 400715, Chongqing, China.
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He J, Zhao Y, Zhao E, Wang X, Dong Z, Chen Y, Yang L, Cui H. Cancer-testis specific gene OIP5: a downstream gene of E2F1 that promotes tumorigenesis and metastasis in glioblastoma by stabilizing E2F1 signaling. Neuro Oncol 2019; 20:1173-1184. [PMID: 29547938 DOI: 10.1093/neuonc/noy037] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background The cancer-testis specific gene Opa interacting protein 5 (OIP5) is reactivated in many human cancers, but its functions in glioblastoma remain unclear. Here, we assessed the significance of OIP5 in the tumorigenesis and metastasis of glioblastoma for the first time. Methods An immunohistochemistry assay was performed to detect OIP5 expression changes in glioblastoma patients. Overall survival analysis was performed to evaluate the prognostic significance of OIP5. Growth curve, colony formation, and transwell assays were used to analyze cell proliferation and metastasis. Tumorigenicity potential was investigated in orthotopic tumor models, and immunoprecipitation, chromatin immunoprecipitation, and luciferase assays were employed to explore the mechanisms underlying the activation of OIP5 expression by E2F transcription factor 1 (E2F1) to stabilize and maintain E2F1 signaling. Results OIP5 was found to be upregulated in glioblastoma patients and to impair patient survival, and the increased expression of OIP5 was positively correlated with tumor stage. Compared with short hairpin green fluorescent protein cells, cells in which OIP5 was knocked down exhibited significantly reduced proliferation, metastasis, colony formation, and tumorigenicity abilities, whereas OIP5 recovery enhanced these abilities. OIP5 was highly correlated with cell cycle progression but had no obvious effects on apoptosis. Notably, we demonstrated a feedback loop in which E2F1 activates the expression of OIP5 to stabilize and maintain E2F1 signaling and promote the E2F1-regulated gene expression that is required for aggressive tumor biology. Conclusions Collectively, our findings demonstrate that OIP5 promotes glioblastoma progression and metastasis, suggesting that OIP5 is a potential target for anticancer therapy.
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Affiliation(s)
- Jiang He
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Yuzu Zhao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Xianxing Wang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Zhen Dong
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Yibiao Chen
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Liqun Yang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
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33
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Zhu S, Dong Z, Ke X, Hou J, Zhao E, Zhang K, Wang F, Yang L, Xiang Z, Cui H. The roles of sirtuins family in cell metabolism during tumor development. Semin Cancer Biol 2019; 57:59-71. [DOI: 10.1016/j.semcancer.2018.11.003] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 11/11/2018] [Accepted: 11/14/2018] [Indexed: 12/20/2022]
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34
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Cao J, Zhao E, Zhu Q, Ji J, Wei Z, Xu B, Cui H. Tubeimoside-1 Inhibits Glioblastoma Growth, Migration, and Invasion via Inducing Ubiquitylation of MET. Cells 2019; 8:cells8080774. [PMID: 31349699 PMCID: PMC6721480 DOI: 10.3390/cells8080774] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/14/2019] [Accepted: 07/18/2019] [Indexed: 12/14/2022] Open
Abstract
Tubeimoside-1 (TBMS1) is one of the extracts of rhizoma bolbostemmae, which has remarkable anti-cancer function in the treatment of esophagus and gastric cancer in traditional Chinese medicine. However the mechanisms of its anti-cancer function is remain unclear. In this study, we demonstrate that TBMS1 could inhibit cell growth and metastasis in glioblastoma. MET is a member of the receptor tyrosine kinase family, which amplifies frequently in various human cancers. As an important proto-oncogene, multiple inhibitors have been developed for the therapy of cancers. Here, we found TBMS1 could reduce/decrease the protein level of MET via increasing its Ubiquitination degradation. Therefore, TBMS1 is a promising compound for the treatment of glioblastoma and an inhibitor of MET.
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Affiliation(s)
- Jiangjun Cao
- Chongqing Engineering Research Center of Antitumor Natural Drugs, Chongqing Three Gorges Medical College, Chongqing 404120, China
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Institute of Medicine of Southwest University, Southwest University, Chongqing 400715, China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Qingzong Zhu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Juanli Ji
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Zekun Wei
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Bo Xu
- Institute of Medicine of Southwest University, Southwest University, Chongqing 400715, China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
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Zhao E, Zhang K, Su J, Pan G, Li C, Shen L, Yang L, Cui H. [Structure and function of BmIntegrin β2 in silkworm, Bombyx mori]. Sheng Wu Gong Cheng Xue Bao 2018; 34:1620-1630. [PMID: 30394029 DOI: 10.13345/j.cjb.180026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Integrins are cell adhesion receptors, which consists of several transmembrane glycoproteins. They are widely distributed on the cell surface and involved in signal transduction pathways. As a heterodimer, each integrin is composed of one α subunit and one β subunit. Integrins are mainly expressed on lepidopteran hemocytes and involved in cell immune response. The full-length cDNA sequence of BmIntegrin β2 was obtained by PCR and RACE, including 2 434 bp. BmIntegrin β2 was predicted to be a transmembrane protein. The BmIntegrin β2 expression profile was detected by qRT-PCR at L4D3 or L5D3 larval stage, and it was highly expressed in hemocyte and hematopoietic organ. Anti-BmIntegrin β2 polyclonal antibody was generated following prokaryotic expression, protein purification and animal immunization, which is highly specific and effective for recognizing BmIntegrin β2 protein through Western blotting. The results of plasmatocytes adhesion experiment showed that BmIntegrin β2 plays an important role on the adhesion and spreading of plasmatocytes to foreign surfaces. This study provides a foundation for further research of the biological function of BmIntegrin β2 gene.
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Affiliation(s)
- Erhu Zhao
- State Ley Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China.,Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, Chongqing 400715, China
| | - Kui Zhang
- State Ley Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China.,Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, Chongqing 400715, China
| | - Jingjing Su
- State Ley Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China.,Western Biotechnology Corporation Lit., Chongqing 400039, China
| | - Guangzhao Pan
- State Ley Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China.,Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, Chongqing 400715, China
| | - Chongyang Li
- State Ley Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China.,Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, Chongqing 400715, China
| | - Li Shen
- State Ley Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China.,Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, Chongqing 400715, China
| | - Liqun Yang
- State Ley Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China.,Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, Chongqing 400715, China
| | - Hongjuan Cui
- State Ley Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China.,Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, Chongqing 400715, China
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Xuan F, Huang M, Zhao E, Cui H. MINA53 deficiency leads to glioblastoma cell apoptosis via inducing DNA replication stress and diminishing DNA damage response. Cell Death Dis 2018; 9:1062. [PMID: 30333481 PMCID: PMC6193027 DOI: 10.1038/s41419-018-1084-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 07/30/2018] [Accepted: 07/31/2018] [Indexed: 12/22/2022]
Abstract
MYC-induced nuclear antigen (MINA53) is a JmjC (jumonji C domain)-containing protein, which is highly expressed in many cancers including glioblastoma. We have revealed in our previous report that MINA53 is a poor prognostic indicator for glioblastoma patients, and knockdown of MINA53 could reduce glioblastoma malignancy. In this study, we found that MINA53 knockdown could decrease the DNA replication initiation in glioblastoma cells. Through further investigations, we revealed that MINA53 could regulate the expression of the CDC45-MCM-GINS (CMG) complex genes, which are vital for DNA replication initiation. Knockdown of MINA53 reduced the CMG genes expression and thus induced DNA replication stress and DNA damage. Furthermore, MINA53 knockdown diminished DNA damage response (DDR) by reducing the ATM/ATR-H2AX pathway activity and finally led glioblastoma cells to apoptosis and death. We further applied a genotoxic drug Doxorubicin and found that MINA53 deficiency sensitized glioblastoma cells to Doxorubicin. Our study reveals that MINA53 is involved in DNA replication initiation and DNA damage response, and provides support for MINA53 as a novel and potential therapeutic target for glioblastoma treatment.
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Affiliation(s)
- Fan Xuan
- State Key Laboratory of Silkworm Genome Biology, Southwest University, 400716, Chongqing, China
| | - Mengying Huang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, 400716, Chongqing, China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, 400716, Chongqing, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Southwest University, 400716, Chongqing, China.
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Zhao E, Jiang X, Cui H. Bombyx mori Dihydroorotate Dehydrogenase: Knockdown Inhibits Cell Growth and Proliferation via Inducing Cell Cycle Arrest. Int J Mol Sci 2018; 19:ijms19092581. [PMID: 30200251 PMCID: PMC6163951 DOI: 10.3390/ijms19092581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 08/22/2018] [Accepted: 08/26/2018] [Indexed: 12/03/2022] Open
Abstract
Dihydroorotate dehydrogenase (DHODH), in the de novo pyrimidine biosynthetic pathway, is the fourth enzyme of pyrimidine synthesis and is used to oxidize dihydroorotate and hence to orotat. We cloned and characterized here the dhod of silkworms, Bombyx mori. The full-length cDNA sequence of dhod is 1339 bp, including an open reading frame (ORF) of 1173 bp that encoded a 390 amino acid protein. And two domains were involved in the Dihydroorotate dehydrogenase amino acid sequence of silkworms, Bombyx mori (BmDHODH), namely a DHO_dh domain and a transmembrane domain in N-termina. The silkworm dhod is expressed throughout development and in nine tissues. Moreover, knockdown of the silkworm dhod gene reduced cell growth and proliferation through G2/M phase cell cycle arrest. Similarly, DHODH inhibitor (leflunomide) also reduced cell growth and proliferation, with a significant decrease of cyclin B and cdk2. DHODH is the fourth enzyme of pyrimidine synthesis, so we also found that leflunomide can inhibit, at least in part, the endomitotic DNA replication in silk glands cells. These findings demonstrate that downregulation of BmDHODH inhibits cell growth and proliferation in silkworm cells, and the endomitotic DNA replication in silk gland cells.
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Affiliation(s)
- Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China.
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China.
- Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing 400715, China.
| | - Xiaolan Jiang
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China.
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Chongqing 400716, China.
- Southwest University Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing 400715, China.
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Wu T, Cui H, Xu Y, Du Q, Zhao E, Cao J, Nie L, Fu G, Ren A. The effect of tubeimoside-1 on the proliferation, metastasis and apoptosis of oral squamous cell carcinoma in vitro. Onco Targets Ther 2018; 11:3989-4000. [PMID: 30022842 PMCID: PMC6044352 DOI: 10.2147/ott.s164503] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Background Tubeimoside-1 (TBMS1), a triterpenoid saponin extracted from traditional Chinese medicine tubeimoside, exerts a cytotoxic effect on several human cancer cell lines. However, no study has focused on whether TBMS1 works on oral squamous cell carcinoma (OSCC). Materials and methods We treated OSCC cells with TBMS1 to detect the effect and relevant molecular basis of TBMS1 for the first time. We chose two oral cancer cell lines, CAL27 and SCC15, for this study. First, the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenylte-trazolium bromide assay and cell proliferation 5′-bromo-2′-deoxyuridine assay were carried out to detect cell growth. Second, colony formation assay was performed to assess clonogenesis capacity. Next apoptosis was analyzed by flow cytometry. Subsequently, wound healing and transwell assays were applied to explore cell migration. Finally, Western blot was further performed to examine corresponding proteins’ expression change. Results Our data showed that TBMS1 significantly suppressed proliferation of OSCC cells in a dose- and time-dependent manner and it inhibited migration of OSCC cells as well. After treatment with TBMS1, OSCC cells underwent cell apoptosis. Furthermore, Western blot demonstrated that TBMS1 downregulated apoptosis-associated proteins such as PARP, p-ERK1/2, Bcl-2, caspase-3, caspase-7 and caspase-8 and upregulated cleaved PARP, cleaved caspase-3 and cleaved caspase-9. It could also reduce expression of c-Myc and MMP-7. Meanwhile, TBMS1 did not change the total ERK1/2 expression. Conclusion These results revealed that TBMS1 might be a potential chemotherapeutic drug for the management of OSCC.
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Affiliation(s)
- Tingting Wu
- College of Stomatology, Chongqing Medical University, Chongqing, People's Republic of China, .,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China, .,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China, .,Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, People's Republic of China
| | - Yamei Xu
- College of Stomatology, Chongqing Medical University, Chongqing, People's Republic of China, .,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China, .,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China, .,Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Quangao Du
- College of Stomatology, Chongqing Medical University, Chongqing, People's Republic of China, .,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China, .,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China, .,Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, People's Republic of China
| | - Jiangjun Cao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, People's Republic of China
| | - Ling Nie
- College of Stomatology, Chongqing Medical University, Chongqing, People's Republic of China, .,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China, .,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China, .,Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Gang Fu
- College of Stomatology, Chongqing Medical University, Chongqing, People's Republic of China, .,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China, .,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China, .,Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Aishu Ren
- College of Stomatology, Chongqing Medical University, Chongqing, People's Republic of China, .,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China, .,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China, .,Department of Orthodontics, Stomatological Hospital of Chongqing Medical University, Chongqing, People's Republic of China,
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Cao J, Wu Z, Tong T, Zhu Q, Zhao E, Cui H. [Advances in mesenchymal to epithelial transition factor signaling pathway and inhibitors]. Sheng Wu Gong Cheng Xue Bao 2018; 34:334-351. [PMID: 29577684 DOI: 10.13345/j.cjb.170265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
As a receptor tyrosine kinase, mesenchymal to epithelial transition factor (MET) is the membrane receptor for hepatocyte growth factor (HGF), which is related with a series of biological functions, such as cell proliferation, progression, apoptosis, metastasis and morphological changes. As research continues, MET is amplified or overexpressed in a wide range of human cancers and closely related with worse prognosis. Therefore, various MET inhibitors are currently being developed as potential treatments for a variety of cancers. Based on our current study we summarize the existing knowledge on structure, biological function and its inhibitors of MET and provide a data phase for future researchers.
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Affiliation(s)
- Jiangjun Cao
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China
| | - Zonghui Wu
- Hospital of Southwest University, Southwest University, Chongqing 400716, China
| | - Tingting Tong
- College of Animal Science and Technology, Southwest University, Chongqing 400716, China
| | - Qingzong Zhu
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing 400716, China
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Zhang D, Wang F, Pang Y, Ke XX, Zhu S, Zhao E, Zhang K, Chen L, Cui H. Down-regulation of CHERP inhibits neuroblastoma cell proliferation and induces apoptosis through ER stress induction. Oncotarget 2017; 8:80956-80970. [PMID: 29113358 PMCID: PMC5655253 DOI: 10.18632/oncotarget.20898] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 08/04/2017] [Indexed: 02/06/2023] Open
Abstract
Neuroblastoma is a childhood tumor that is derived from the sympathetic nervous system. In recent years, great progress has been made in our understanding of neuroblastoma. However, applying theories to improve disease outcomes remains challenging. In this study, we observed that calcium homeostasis endoplasmic reticulum protein (CHERP) was involved in the maintenance of neuroblastoma cell proliferation and tumorigenicity. Moreover, elevated CHERP expression was positively correlated with poor patient survival, whereas low CHERP expression was predictive of better outcomes. Additional functional studies showed that CHERP knockdown inhibited neuroblastoma cell proliferation in vitro and resulted in defective tumorigenicity in vivo. Moreover, CHERP depletion suppressed neuroblastoma cell proliferation by inducing endoplasmic reticulum stress and cell apoptosis. Considering the functional roles of CHERP in neuroblastoma development and maintenance, CHERP might function as a novel therapeutic target for neuroblastoma patients.
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Affiliation(s)
- Dunke Zhang
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
- Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Feng Wang
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
| | - Yi Pang
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
| | - Xiao-xue Ke
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
| | - Shunqin Zhu
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
| | - Kui Zhang
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
| | - Lixue Chen
- Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
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Sun G, Zhang C, Feng M, Liu W, Xie H, Qin Q, Zhao E, Wan L. Methylation analysis of p16, SLIT2, SCARA5, and Runx3 genes in hepatocellular carcinoma. Medicine (Baltimore) 2017; 96:e8279. [PMID: 29019900 PMCID: PMC5662323 DOI: 10.1097/md.0000000000008279] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
This study is to investigate the methylation status of multiple tumor suppressor 1 (p16), secreted glycoprotein 2 (SLIT2), scavenger receptor class A, member 5 putative (SCARA5), and human runt-related transcription factor 3 (Runx3) genes in the peripheral blood of hepatocellular carcinoma (HCC).This is a case-control study. The peripheral blood samples were collected from 25 HCC patients, 25 patients with high risk of HCC (defined as "internal control group"), and 25 healthy individuals (defined as "external control group"), respectively. Then the methylation status of p16, SLIT2, SCARA5, and Runx3 genes in the blood samples were analyzed by pyrosequencing. The relationship between the methylation and the clinical features of HCC patients were evaluated.The methylation levels in the 7 CpG loci of p16 gene in HCC patients were low and without statistically significant difference (P > .05) compared to the control groups. Although the methylation levels of CpG3 and CpG4 in SLIT2 gene loci were higher than those of the control groups, there was no statistically significant difference (P > .05). However, the methylation rate of CpG2 locus in SCARA5 gene in HCC patients was significantly higher (P < .05). And the methylation rates of CpG1, CpG2, CpG3, CpG4, CpG5, and CpG8 in Runx3 gene in HCC patients were significantly different to that of control groups (P < .05). We also have analyzed the correlations between the CpG islands methylation of Runx3 or SCARA5 genes and the age, gender, hepatitis B, liver cirrhosis, alpha fetal protein, or hepatitis B surface antigen (HBsAg) of the HCC patients, which all showed no significant correlations (P > .05).The methylation status of SCARA5 and Runx3 genes are abnormal in HCC patients, which may further be used as molecular markers for early auxiliary diagnosis of liver cancer.
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Affiliation(s)
- Gaofeng Sun
- School of Public Health, Xinjiang Medical University
- Department of Chronic and Non-communicable Diseases Control, City Center for Disease Control and Prevention
| | - Chen Zhang
- The Fifth Affiliated Hospital of Xinjiang Medical University
| | - Min Feng
- Department of Inspection, Affiliated Tumor Hospital of Xinjiang Medical University
| | - Wensheng Liu
- Urumqi Health and Family Commission, Urumqi, China
| | - Huifang Xie
- School of Public Health, Xinjiang Medical University
| | - Qin Qin
- Department of Chronic and Non-communicable Diseases Control, City Center for Disease Control and Prevention
| | - E. Zhao
- Department of Chronic and Non-communicable Diseases Control, City Center for Disease Control and Prevention
| | - Li Wan
- Department of Chronic and Non-communicable Diseases Control, City Center for Disease Control and Prevention
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Zhao E, Tang C, Jiang X, Weng X, Zhong X, Zhang D, Hou J, Wang F, Huang M, Cui H. Inhibition of cell proliferation and induction of autophagy by KDM2B/FBXL10 knockdown in gastric cancer cells. Cell Signal 2017; 36:222-229. [PMID: 28506929 DOI: 10.1016/j.cellsig.2017.05.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 04/28/2017] [Accepted: 05/11/2017] [Indexed: 12/22/2022]
Abstract
Gastric cancer is difficult to cure due to its clinical heterogeneity and the complexity of its molecular mechanisms. KDM2B, a member of the JHDM family, functions as a histone lysine demethylase. However, the role and mechanisms of KDM2B in gastric cancer have not been elucidated. Here, we showed that KDM2B is commonly expressed in gastric cancer cells. The downregulation of KDM2B immediately induces autophagy, followed by the inhibition of proliferation. The compound 3-methyladenine (3-MA), an inhibitor of autophagy, largely rescues autophagy and the inhibition of cell proliferation induced by KDM2B knockdown. In this process, we observed a downregulation of the phosphorylation of Akt and its downstream effectors mTOR and p70S6K and an upregulation of Erk phosphorylation after KDM2B knockdown. In a xenograft model, the downregulation of KDM2B can inhibit tumour growth. The conversion of LC3-I to LC3-II also decreased concomitantly in vivo, which is a hallmark of autophagy. Taken together, our study was the first to demonstrate a novel regulatory role of KDM2B in autophagy and cell growth in gastric cancer cells. Our findings suggest that KDM2B may serve as a novel therapeutic target for gastric cancer therapy.
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Affiliation(s)
- Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Chunling Tang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Xiaolan Jiang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Xiong Weng
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Xiaoxia Zhong
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Dunke Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Jianbing Hou
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Feng Wang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Mengying Huang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China.
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Zhang D, Wang F, Pang Y, Zhao E, Zhu S, Chen F, Cui H. ALG2 regulates glioblastoma cell proliferation, migration and tumorigenicity. Biochem Biophys Res Commun 2017; 486:300-306. [PMID: 28300556 DOI: 10.1016/j.bbrc.2017.03.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 03/11/2017] [Indexed: 12/22/2022]
Abstract
Apoptosis-linked gene-2 (ALG-2), also known as programmed cell death 6 (PDCD6), has recently been reported to be aberrantly expressed in various tumors and required for tumor cell viability. The aim of the present study was to investigate whether ALG-2 plays a crucial role in tumor cell proliferation, migration and tumorigenicity. In this study, we examined the expression of PDCD6 in glioblastoma cell lines and found that ALG-2 was generally expressed in glioblastoma cell lines. We also performed an analysis of an online database and found that high expression of ALG-2 was associated with poor prognosis (p = 0.039). We found that over-expression of ALG2 in glioblastoma could inhibit cell proliferation and, conversely, that down-regulation of ALG2 could promote cell proliferation. Further studies showed that over-expression of ALG2 inhibited the migration of tumor cells, whereas down-regulation of ALG2 promoted tumor cell migration. Finally, in vitro and in vivo studies showed that over-expression of ALG2 inhibited the tumorigenic ability of tumor cells, while down-regulation of ALG2 promoted tumor cell tumorigenic ability. In conclusion, ALG2 has a tumor suppressive role in glioblastoma and might be a potential target for the treatment of glioblastoma.
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Affiliation(s)
- Dunke Zhang
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Feng Wang
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Yi Pang
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Sunqin Zhu
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Fei Chen
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, 259 Mack Avenue, Detroit, MI 48201, USA.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China.
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Becker P, Furie R, Mitrane M, Zhao E. THU0307 Repository Corticotropin Injection (RCI) Attenuates Disease Activity in Patients with Persistently Active Systemic Lupus Erythematosus (SLE) Requiring Corticosteroids: Results from A 44-Week Open-Label Extension Study:. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Zhao E, Ding J, Xia Y, Liu M, Ye B, Choi JH, Yan C, Dong Z, Huang S, Zha Y, Yang L, Cui H, Ding HF. KDM4C and ATF4 Cooperate in Transcriptional Control of Amino Acid Metabolism. Cell Rep 2016; 14:506-519. [PMID: 26774480 DOI: 10.1016/j.celrep.2015.12.053] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 11/10/2015] [Accepted: 12/10/2015] [Indexed: 12/31/2022] Open
Abstract
The histone lysine demethylase KDM4C is often overexpressed in cancers primarily through gene amplification. The molecular mechanisms of KDM4C action in tumorigenesis are not well defined. Here, we report that KDM4C transcriptionally activates amino acid biosynthesis and transport, leading to a significant increase in intracellular amino acid levels. Examination of the serine-glycine synthesis pathway reveals that KDM4C epigenetically activates the pathway genes under steady-state and serine deprivation conditions by removing the repressive histone modification H3 lysine 9 (H3K9) trimethylation. This action of KDM4C requires ATF4, a transcriptional master regulator of amino acid metabolism and stress responses. KDM4C activates ATF4 transcription and interacts with ATF4 to target serine pathway genes for transcriptional activation. We further present evidence for KDM4C in transcriptional coordination of amino acid metabolism and cell proliferation. These findings suggest a molecular mechanism linking KDM4C-mediated H3K9 demethylation and ATF4-mediated transactivation in reprogramming amino acid metabolism for cancer cell proliferation.
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Affiliation(s)
- Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and System Biology, Southwest University, Chongqing 400715, China; Cancer Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Jane Ding
- Cancer Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Yingfeng Xia
- Cancer Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA; Insititute of Translational Neuroscience and Department of Neurology, The First Hospital of Yichang, Three Gorges University College of Medicine, Yichang 443000, China
| | - Mengling Liu
- Cancer Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA; Insititute of Translational Neuroscience and Department of Neurology, The First Hospital of Yichang, Three Gorges University College of Medicine, Yichang 443000, China
| | - Bingwei Ye
- Cancer Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Jeong-Hyeon Choi
- Cancer Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA; Department of Biostatistics and Epidemiology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Chunhong Yan
- Cancer Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA; Department of Biochemistry and Molecular Biology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Zheng Dong
- Department of Cell Biology and Anatomy, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Shuang Huang
- Department of Anatomy and Cell Biology, University of Florida College of Medicine, Gainesville, FL 32611, USA
| | - Yunhong Zha
- Insititute of Translational Neuroscience and Department of Neurology, The First Hospital of Yichang, Three Gorges University College of Medicine, Yichang 443000, China
| | - Liqun Yang
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and System Biology, Southwest University, Chongqing 400715, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and System Biology, Southwest University, Chongqing 400715, China.
| | - Han-Fei Ding
- Cancer Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA; Department of Biochemistry and Molecular Biology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA; Department of Pathology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA.
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Zhong X, Zhao E, Tang C, Zhang W, Tan J, Dong Z, Ding HF, Cui H. Antibiotic drug tigecycline reduces neuroblastoma cells proliferation by inhibiting Akt activation in vitro and in vivo. Tumour Biol 2015; 37:7615-23. [PMID: 26687647 DOI: 10.1007/s13277-015-4613-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 12/07/2015] [Indexed: 12/20/2022] Open
Abstract
As the first member of glycylcycline bacteriostatic agents, tigecycline is approved as a novel expanded-spectrum antibiotic, which is clinically available. However, accumulating evidence indicated that tigecycline was provided with the potential application in cancer therapy. In this paper, tigecycline was shown to exert an anti-proliferative effect on neuroblastoma cell lines. Furthermore, it was found that tigecycline induced G1-phase cell cycle arrest instead of apoptosis by means of Akt pathway inhibition. In neuroblastoma cell lines, the Akt activator insulin-like growth factor-1 (hereafter referred to as IGF-1) reversed tigecycline-induced cell cycle arrest. Besides, tigecycline inhibited colony formation and suppressed neuroblastoma cells xenograft formation and growth. After tigecycline treatment in vivo, the Akt pathway inhibition was confirmed as well. Collectively, our data provided strong evidences that tigecycline inhibited neuroblastoma cells growth and proliferation through the Akt pathway inhibition in vitro and in vivo. In addition, these results were supported by previous studies concerning the application of tigecycline in human tumors treatment, suggesting that tigecycline might act as a potential candidate agent for neuroblastoma treatment.
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Affiliation(s)
- Xiaoxia Zhong
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400715, People's Republic of China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400715, People's Republic of China
| | - Chunling Tang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400715, People's Republic of China
| | - Weibo Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400715, People's Republic of China
| | - Juan Tan
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400715, People's Republic of China.,Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University, Chongqing, People's Republic of China
| | - Zhen Dong
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400715, People's Republic of China
| | - Han-Fei Ding
- Cancer Center, Medical College of Georgia, Georgia Regents University, Augusta, GA, 30912, USA
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400715, People's Republic of China.
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Zhao Y, Zhao R, Zhao Z, Xu H, Zhao E, Zhang J. Genetic diversity and molecular phylogeography of Chinese domestic goats by large-scale mitochondrial DNA analysis. Mol Biol Rep 2014; 41:3695-704. [DOI: 10.1007/s11033-014-3234-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 02/06/2014] [Indexed: 10/25/2022]
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Zanoni A, Verlato G, Giacopuzzi S, Weindelmayer J, Casella F, Pasini F, Zhao E, de Manzoni G. Neoadjuvant concurrent chemoradiotherapy for locally advanced esophageal cancer in a single high-volume center. Ann Surg Oncol 2012; 20:1993-9. [PMID: 23274533 DOI: 10.1245/s10434-012-2822-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Indexed: 12/19/2022]
Abstract
BACKGROUND Neoadjuvant chemoradiotherapy (CRT) is now considered the standard of care by many centers in the treatment of both squamous cell carcinoma (SCC) and adenocarcinoma of the esophagus. This study evaluates the effectiveness of a neoadjuvant CRT protocol, as regards pathological complete response (pCR) rate and long-term survival. METHODS From 2003 to 2011, at Upper G.I. Surgery Division of Verona University, 155 consecutive patients with locally advanced esophageal cancers (90 SCC, 65 adenocarcinoma) were treated with a single protocol of neoadjuvant CRT (docetaxel, cisplatin, and 5-fluorouracil with 50.4 Gy of concurrent radiotherapy). Response to CRT was evaluated through percentage of pathological complete response (pCR or ypT0N0), overall (OS) and disease-related survival (DRS), and pattern of relapse. RESULTS One hundred thirty-one patients (84.5 %) underwent surgery. Radical resection (R0) was achieved in 123 patients (79.3 %), and pCR in 65 (41.9 %). Postoperative mortality was 0.7 % (one case). Five-year OS and DRS were respectively 43 and 49 % in the entire cohort, 52 and 59 % in R0 cases, and 72 and 81 % in pCR cases. Survival did not significantly differ between SCC and adenocarcinoma, except for pCR cases. Forty-nine patients suffered from relapse, which was mainly systemic in adenocarcinoma. Only three out of 26 pCR patients with previous adenocarcinoma developed relapse, always systemic. CONCLUSIONS This study suggests that patients treated with the present protocol achieve good survival and high pCR rate. Further research is necessary to evaluate whether surgery on demand is feasible in selected patients, such as pCR patients with adenocarcinoma.
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Affiliation(s)
- A Zanoni
- Upper G.I. Surgery Division, University of Verona, Verona, Italy.
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Trudeau VL, Martyniuk CJ, Zhao E, Hu H, Volkoff H, Decatur WA, Basak A. Is secretoneurin a new hormone? Gen Comp Endocrinol 2012; 175:10-8. [PMID: 22036841 DOI: 10.1016/j.ygcen.2011.10.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2011] [Revised: 10/05/2011] [Accepted: 10/12/2011] [Indexed: 11/25/2022]
Abstract
Numerous small potentially bioactive peptides are derived from the selective processing of the ~600 amino acid secretogranin II (SgII) precursor, but only the 31-42 amino acid segment termed secretoneurin (SN) is well-conserved from sharks to mammals. Both SNa and SNb paralogs have been identified in some teleosts, likely arising as a result of the specific genome duplication event in this lineage. Only one copy of the putative lamprey SgII (188 amino acids) could be identified which gives rise to a divergent agnathan SN that contains the signature YTPQ-X-LA-X(7)-EL sequence typical of the central core of all known SN peptides. In rodent models, SN has regulatory effects on neuroinflammation and neurotransmitter release, and possesses therapeutic potential for the induction of angiogenesis. The wide distribution of SN in neuroendocrine neurons and pituitary cells suggests important endocrine roles. The clearest example of the endocrine action of SN is the stimulatory effects on pituitary luteinizing hormone release from goldfish pituitary and mouse LβT2 gonadotroph cells, indicative of an important role in reproduction. Several lines of evidence suggest that the SN receptor is most likely a G-protein coupled protein. Microarray analysis of SN effects on dispersed goldfish pituitary cells in vitro reveals novel SN actions that include effects on genes involved in notch signaling and the guanylate cyclase pathway. Intracerebroventricular injection of SN increases feeding and locomotory behaviors in goldfish. Given that SgII appeared early in vertebrate evolution, SN is an old peptide with emerging implications as a new multifunctional hormone.
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Affiliation(s)
- Vance L Trudeau
- Department of Biology, Centre for Advanced Research in Environmental Genomics, University of Ottawa, 30 Marie Curie, Ottawa, ON, Canada.
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Zhao E, McNeilly JR, McNeilly AS, Fischer-Colbrie R, Basak A, Seong JY, Trudeau VL. Secretoneurin stimulates the production and release of luteinizing hormone in mouse L{beta}T2 gonadotropin cells. Am J Physiol Endocrinol Metab 2011; 301:E288-97. [PMID: 21521715 PMCID: PMC3154532 DOI: 10.1152/ajpendo.00070.2011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Secretoneurin (SN) is a functional secretogranin II (SgII)-derived peptide that stimulates luteinizing hormone (LH) production and its release in the goldfish. However, the effects of SN on the pituitary of mammalian species and the underlying mechanisms remain poorly understood. To study SN in mammals, we adopted the mouse LβT2 gonadotropin cell line that has characteristics consistent with normal pituitary gonadotrophs. Using radioimmunoassay and real-time RT-PCR, we demonstrated that static treatment with SN induced a significant increment of LH release and production in LβT2 cells in vitro. We found that GnRH increased cellular SgII mRNA level and total SN-immunoreactive protein release into the culture medium. We also report that SN activated the extracellular signal-regulated kinases (ERK) in either 10-min acute stimulation or 3-h chronic treatment. The SN-induced ERK activation was significantly blocked by pharmacological inhibition of MAPK kinase (MEK) with PD-98059 and protein kinase C (PKC) with bisindolylmaleimide. SN also increased the total cyclic adenosine monophosphate (cAMP) levels similarly to GnRH. However, SN did not activate the GnRH receptor. These data indicate that SN activates the protein kinase A (PKA) and cAMP-induced ERK signaling pathways in the LH-secreting mouse LβT2 pituitary cell line.
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Affiliation(s)
- E Zhao
- Centre for Advanced Research in Environmental Genomics, Department of Biology, University of Ottawa, 30 Marie Curie, Ottawa, Ontario, Canada
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