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Wang Y, Yang G, Zhang X, Bai R, Yuan D, Gao D, He Q, Yuan Y, Zhang X, Kou J, Zheng L, Huang Y, Tang Z, Bao Y, Song X, Zhao Y. Antitumor Effect of Anti-c-Myc Aptamer-Based PROTAC for Degradation of the c-Myc Protein. Adv Sci (Weinh) 2024:e2309639. [PMID: 38682443 DOI: 10.1002/advs.202309639] [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: 12/10/2023] [Revised: 03/04/2024] [Indexed: 05/01/2024]
Abstract
Targeting "undruggable" targets with intrinsically disordered structures is of great significance for the treatment of disease. The transcription factor c-Myc controls global gene expression and is an attractive therapeutic target for multiple types of cancers. However, due to the lack of defined ligand binding pockets, targeted c-Myc have thus far been unsuccessful. Herein, to address the dilemma of lacking ligands, an efficient and high throughput aptamer screening strategy is established, named polystyrene microwell plate-based systematic evolution of ligands by exponential enrichment (microwell-SELEX), and identify the specific aptamer (MA9C1) against c-Myc. The multifunctional aptamer-based Proteolysis Targeting Chimeras (PROTAC) for proteolysis of the c-Myc (ProMyc) is developed using the aptamer MA9C1 as the ligand. ProMyc not only significantly degrades c-Myc by the ubiquitin-proteasome system, but also reduces the Max protein, synergistically inhibiting c-Myc transcriptional activity. Combination of the artificial cyclization and anti-PD-L1 aptamer (PA1)-based delivery system, circular PA1-ProMyc chimeras achieve tumor regression in the xenograft tumor model, laying a solid foundation for the development of efficacious c-Myc degrader for the clinic. Therefore, this aptamer-based degrader provides an invaluable potential degrader in drug discovery and anti-tumor therapy, offering a promising degrader to overcome the challenge of targeting intractable targets.
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Affiliation(s)
- Yuchun Wang
- National Engineering Laboratory for Druggable Gene and Protein Screening, College of Life Science, Northeast Normal University, Changchun, 130024, P. R. China
| | - Gang Yang
- College of Life Science, Sichuan University, Chengdu, Sichuan, 610064, P. R. China
| | - Xinyu Zhang
- National Engineering Laboratory for Druggable Gene and Protein Screening, College of Life Science, Northeast Normal University, Changchun, 130024, P. R. China
| | - Ruoling Bai
- College of Life Science, Sichuan University, Chengdu, Sichuan, 610064, P. R. China
| | - Deyu Yuan
- College of Life Science, Sichuan University, Chengdu, Sichuan, 610064, P. R. China
| | - Denghui Gao
- National Engineering Laboratory for Druggable Gene and Protein Screening, College of Life Science, Northeast Normal University, Changchun, 130024, P. R. China
| | - Qianyu He
- National Engineering Laboratory for Druggable Gene and Protein Screening, College of Life Science, Northeast Normal University, Changchun, 130024, P. R. China
| | - Yi Yuan
- Natural Products Research Centre, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, 610041, P. R. China
| | - Xinghe Zhang
- lncTAC Bio., Chengdu, Sichuan, 610200, P. R. China
| | | | - Lihua Zheng
- National Engineering Laboratory for Druggable Gene and Protein Screening, College of Life Science, Northeast Normal University, Changchun, 130024, P. R. China
| | - Yanxin Huang
- National Engineering Laboratory for Druggable Gene and Protein Screening, College of Life Science, Northeast Normal University, Changchun, 130024, P. R. China
| | - Zhuo Tang
- Natural Products Research Centre, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, 610041, P. R. China
| | - Yongli Bao
- National Engineering Laboratory for Druggable Gene and Protein Screening, College of Life Science, Northeast Normal University, Changchun, 130024, P. R. China
| | - Xu Song
- College of Life Science, Sichuan University, Chengdu, Sichuan, 610064, P. R. China
| | - Yongyun Zhao
- National Engineering Laboratory for Druggable Gene and Protein Screening, College of Life Science, Northeast Normal University, Changchun, 130024, P. R. China
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Sun M, Wang L, Zhuo Y, Xu S, Liu H, Jiang X, Lu Z, Wang X, Wang Y, Yue G, Feng B, Rao H, Wu D. Multi-Enzyme Activity of MIL-101 (Fe)-Derived Cascade Nano-Enzymes for Antitumor and Antimicrobial Therapy. Small 2024; 20:e2309593. [PMID: 38126566 DOI: 10.1002/smll.202309593] [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] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/14/2023] [Indexed: 12/23/2023]
Abstract
The clinical application of oncology therapy is hampered by high glutathione concentrations, hypoxia, and inefficient activation of cell death mechanisms in cancer cells. In this study, Fe and Mo bimetallic sulfide nanomaterial (FeS2@MoS2) based on metal-organic framework structure is rationally prepared with peroxidase (POD)-, catalase (CAT)-, superoxide dismutase (SOD)-like activities and glutathione depletion ability, which can confer versatility for treating tumors and mending wounds. In the lesion area, FeS2@MoS2 with SOD-like activity can facilitate the transformation of superoxide anions (O2 -) to hydrogen peroxide (H2O2), and then the resulting H2O2 serves as a substrate for the Fenton reaction with FMS to produce highly toxic hydroxyl radicals (∙OH). Simultaneously, FeS2@MoS2 has an ability to deplete glutathione (GSH) and catalyze the decomposition of nicotinamide adenine dinucleotide phosphate (NADPH) to curb the regeneration of GSH from the source. Thus it can realize effective tumor elimination through synergistic apoptosis-ferroptosis strategy. Based on the alteration of the H2O2 system, free radical production, glutathione depletion and the alleviation of hypoxia in the tumor microenvironment, FeS2@MoS2 NPS can not only significantly inhibit tumors in vivo and in vitro, but also inhibit multidrug-resistant bacteria and hasten wound healing. It may open the door to the development of cascade nanoplatforms for effective tumor treatment and overcoming wound infection.
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Affiliation(s)
- Mengmeng Sun
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an, 625014, P. R. China
| | - Liling Wang
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an, 625014, P. R. China
| | - Yong Zhuo
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, P. R. China
| | - Shengyu Xu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, P. R. China
| | - Hehe Liu
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, P. R. China
| | - Xuemei Jiang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, P. R. China
| | - Zhiwei Lu
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an, 625014, P. R. China
| | - Xianxiang Wang
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an, 625014, P. R. China
| | - Yanying Wang
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an, 625014, P. R. China
| | - Guizhou Yue
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an, 625014, P. R. China
| | - Bin Feng
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, P. R. China
| | - Hanbing Rao
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an, 625014, P. R. China
| | - De Wu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, P. R. China
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Zhang Y, Chen Y, Penttinen P, Wang X, Quan Y, Wen L, Yang M, Zhang X, Chen Q, Zhang L, Zhang J, Zhang X, Xu K. Ciceribacter sichuanensis sp. nov., a plant growth promoting rhizobacterium isolated from root nodules of soybean in Sichuan, China. Antonie Van Leeuwenhoek 2024; 117:46. [PMID: 38427093 DOI: 10.1007/s10482-024-01941-5] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 02/02/2024] [Indexed: 03/02/2024]
Abstract
The fast-growing rhizobia-like strains S101T and S153, isolated from root nodules of soybean (Glycine max) in Sichuan, People's Republic of China, underwent characterization using a polyphasic taxonomy approach. The strains exhibited growth at 20-40 °C (optimum, 28 °C), pH 4.0-10.0 (optimum, pH 7.0) and up to 2.0% (w/v) NaCl (optimum, 0.01%) on Yeast Mannitol Agar plates. The 16S rRNA gene of strain S101T showed 98.4% sequence similarity to the closest type strain, Ciceribacter daejeonense L61T. Major cellular fatty acids in strain S101T included summed feature 8 (C18:1ω7c and/or C18:1ω6c) and C19:0 cyclo ω8c. The predominant quinone was ubiquinone-10. The polar lipids of strain S101T included diphosphatidylglycerol, phosphatidylglycerol, phosphatidylmethyl ethanolamine, phosphatidyl ethanolamine, amino phospholipid, unidentified phosphoglycolipid and unidentified amino-containing lipids. The DNA G + C contents of S101T and S153 were 61.1 and 61.3 mol%, respectively. Digital DNA-DNA hybridization relatedness and average nucleotide identity values between S101T and C. daejeonense L61T were 46.2% and 91.4-92.2%, respectively. In addition, strain S101T promoted the growth of soybean and carried nitrogen fixation genes in its genome, hinting at potential applications in sustainable agriculture. We propose that strains S101T and S153 represent a novel species, named Ciceribacter sichuanensis sp. nov., with strain S101T as the type strain (= CGMCC 1.61309 T = JCM 35649 T).
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Affiliation(s)
- Yanqin Zhang
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Yuanxue Chen
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Petri Penttinen
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Xing Wang
- Key Laboratory of Microbial Resources Collection and Preservation, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, People's Republic of China
| | - Ying Quan
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Licheng Wen
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Miao Yang
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Xiaoping Zhang
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Qiang Chen
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Lingzi Zhang
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Junjie Zhang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, 450000, People's Republic of China
| | - Xiaoxia Zhang
- Key Laboratory of Microbial Resources Collection and Preservation, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, People's Republic of China.
| | - Kaiwei Xu
- Department of Microbiology, College of Resources, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China.
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Liu Z, Dai J, Liu R, Shen Z, Huang A, Huang Y, Wang L, Chen P, Zhou Z, Xiao H, Chen X, Yang X. Complex insoluble dietary fiber alleviates obesity and liver steatosis, and modulates the gut microbiota in C57BL/6J mice fed a high-fat diet. J Sci Food Agric 2024. [PMID: 38348948 DOI: 10.1002/jsfa.13380] [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: 08/21/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND Obesity has been demonstrated as a risk factor that seriously affects health. Insoluble dietary fiber (IDF), as a major component of dietary fiber, has positive effects on obesity, inflammation and diabetes. RESULTS In this study, complex IDF was prepared using 50% enoki mushroom IDF, 40% carrot IDF, and 10% oat IDF. The effects and potential mechanism of complex IDF on obesity were investigated in C57BL/6 mice fed a high-fat diet. The results showed that feeding diets containing 5% complex IDF for 8 weeks significantly reduced mouse body weight, epididymal lipid index, and ectopic fat deposition, and improved mouse liver lipotoxicity (reduced serum levels of alanine aminotransferase, aspartate aminotransferase, and alkaline phosphatase), fatty liver, and short-chain fatty acid composition. High-throughput sequencing of 16S rRNA and analysis of fecal metabolomics showed that the intervention with complex IDF reversed the high-fat-diet-induced dysbiosis of gut microbiota, which is associated with obesity and intestinal inflammation, and affected metabolic pathways, such as primary bile acid biosynthesis, related to fat digestion and absorption. CONCLUSION Composite IDF intervention can effectively inhibit high-fat-diet-induced obesity and related symptoms and affect the gut microbiota and related metabolic pathways in obesity. Complex IDF has potential value in the prevention of obesity and metabolic syndrome. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Zurui Liu
- School of Food and Bioengineering, Xihua University, Chengdu, People's Republic of China
| | - Juan Dai
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, People's Republic of China
| | - Ruijia Liu
- School of Food and Bioengineering, Xihua University, Chengdu, People's Republic of China
| | - Ziyi Shen
- School of Food and Bioengineering, Xihua University, Chengdu, People's Republic of China
| | - Ai Huang
- School of Food and Bioengineering, Xihua University, Chengdu, People's Republic of China
| | - YuKun Huang
- School of Food and Bioengineering, Xihua University, Chengdu, People's Republic of China
| | - Lijun Wang
- School of Food and Bioengineering, Xihua University, Chengdu, People's Republic of China
| | - Pengfei Chen
- School of Food and Bioengineering, Xihua University, Chengdu, People's Republic of China
| | - Zheng Zhou
- School of Food and Bioengineering, Xihua University, Chengdu, People's Republic of China
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Xianggui Chen
- School of Food and Bioengineering, Xihua University, Chengdu, People's Republic of China
- Chongqing Key Laboratory of Specialty Food Co-Built by Sichuan and Chongqing, Chengdu, People's Republic of China
| | - Xiao Yang
- School of Food and Bioengineering, Xihua University, Chengdu, People's Republic of China
- Chongqing Key Laboratory of Specialty Food Co-Built by Sichuan and Chongqing, Chengdu, People's Republic of China
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5
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Gao F, Xie Q, Zhao X, Yang M, Jiang K, Zhang L, Mao T, Wu H. Preliminary exploration of hepatic parenchymal near-infrared fluorescence imaging technique via retrograde biliary approach: a feasibility study (with video). Sci Rep 2024; 14:2380. [PMID: 38286815 PMCID: PMC10824724 DOI: 10.1038/s41598-024-52904-9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/24/2024] [Indexed: 01/31/2024] Open
Abstract
This paper explores the feasibility and principle of hepatic parenteral fluorescence imaging technology after retrograde injection of indocyanine green (ICG) through endoscopic nasobiliary drainage (ENBD). The data were collected from 53 patients with cholecystolithiasis and choledocholithiasis, from October 2022 to March 2023, diagnosed by fluorescence imaging technique retrograde biliary approach (FIT-RB). We divided the patients into two groups according to the features of liver parenchyma, the poor group (n = 34, including scattered or no imaging) and the good group (n = 19, regular uniform imaging). We compared and analyzed the perioperative results of the two groups and explored the influencing factors of the success of FIT-RB and the ICG concentration suitable for this imaging technique. The good imaging rate of the 53 enrolled cases was 35.8%. The bilirubin level before ENBD and laparoscopic cholecystectomy in the poor group was significantly higher than that in the good group (P < 0.001). The proportion of higher ICG concentrations (0.5 mg/mL) was significantly higher in the good group (P = 0.028). Our results demonstrated that the success rate of good imaging was 4.53 times higher than that of low-dose ICG (0.125 or 0.25 mg/L) cases at 0.5 mg/ml of ICG. The level of total bilirubin and direct bilirubin were negatively correlated with the imaging effect, and total bilirubin and direct bilirubin levels were important predictors of the efficacy of FIT-RB. FIT-RB is safe and feasible in patients with low site bilirubin levels. An ICG concentration of 0.5 mg/ml may be ideal for implementing this technique.
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Affiliation(s)
- Fengwei Gao
- Liver Transplantation Center, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, No. 37, Guoxue Lane, Wuhou District, Chengdu, 610041, Sichuan Province, China
| | - Qingyun Xie
- Liver Transplantation Center, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, No. 37, Guoxue Lane, Wuhou District, Chengdu, 610041, Sichuan Province, China
| | - Xin Zhao
- Department of Hepato-Pancreato-Biliary Surgery, The People's Hospital of Leshan, Leshan, 614000, China
| | - Manyu Yang
- North Sichuan Medical College, Nanchong, 637000, China
| | - Kangyi Jiang
- Department of Hepato-Pancreato-Biliary Surgery, The People's Hospital of Leshan, Leshan, 614000, China
| | - Ling Zhang
- Department of Hepato-Pancreato-Biliary Surgery, The People's Hospital of Leshan, Leshan, 614000, China
| | - Tianyang Mao
- North Sichuan Medical College, Nanchong, 637000, China
| | - Hong Wu
- Liver Transplantation Center, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, No. 37, Guoxue Lane, Wuhou District, Chengdu, 610041, Sichuan Province, China.
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Yu H, Luo Y, Luo S, Zhu W, Chen S, Lu Z, Zheng X. A Reusable Fluorescent Molecular Self-Assembly Cage for Simultaneous Detection and Recycling of Silver(I) Ion. Chem Asian J 2024; 19:e202300872. [PMID: 37945534 DOI: 10.1002/asia.202300872] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/12/2023]
Abstract
Although molecular self-assembled porous materials capable of ratiometric fluorescence probing and recycling of metal ions are both economically and environmentally attractive, very few current efforts have been devoted. Herein, we demonstrated a three-dimensional pure organic cage, namely 4-cage, which can serve as a fluorescent probe for simultaneous ratiometric detection and recycling of Ag+ ion. Taking advantage of the promising emission behavior of its rigidified tetraphenylethylene scaffolds and the chelating ability of its dynamically reversible imine moieties, on one hand, upon the addition of Ag+ , 4-cage undergoes coordination to form a stable but poorly soluble fluorescent complex, Ag+ @4-cage, accompanied by a fluorescence color change from bluish-green to yellowish-green. This allows us to differentiate Ag+ from other cations with high selectivity. On the other hand, upon the addition of Cl- anion, Ag+ @4-cage can be effectively converted into free 4-cage due to the competitive coordination of Cl- with Ag+ . Through this process, secondary usage of 4-cage and the recycling of Ag+ ion can be achieved.
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Affiliation(s)
- Haitao Yu
- School of Chemistry and Molecular Engineering, East China Normal University, 200241, Shanghai, China
| | - Yanju Luo
- Analytical & Testing Center, Sichuan University, 610064, Chengdu, China
| | - Shuai Luo
- Key Laboratory of Green Chemistry and Technology, Ministry of Education), College of Chemistry, Sichuan University, 610064, Chengdu, China
| | - Wencheng Zhu
- Institute of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, 200031, Shanghai, China
| | - Shunwei Chen
- School of Materials Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences), 250303, Jinan, China
| | - Zhiyun Lu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education), College of Chemistry, Sichuan University, 610064, Chengdu, China
| | - Xujun Zheng
- Department of Chemistry, Duke University Durham, 27708, Durham, North Carolina, United States
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Zhao T, Sun J, Lu X, Liu L, Chen L, Zhao W, Zhou B. Let-7a-5p abrogates progression of papillary thyroid carcinoma cells by decreasing nuclear receptor subfamily 6 group a member 1-mediated lipogenesis. J Biochem Mol Toxicol 2024; 38:e23572. [PMID: 37905833 DOI: 10.1002/jbt.23572] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 08/20/2023] [Accepted: 10/18/2023] [Indexed: 11/02/2023]
Abstract
Increasing evidence shows that microRNAs (miRNAs) contribute vital roles in papillary thyroid carcinoma (PTC) carcinogenesis, proliferation, invasion, and so on. As the most common endocrine malignancy, there still have largely unknown molecular events. First, our analysis and open access database information indicates that the downregulation of let-7a-5p accelerates PTC progression. Next, lentivirus mediates the overexpression of let-7a-5p PTC cells, and found let-7a-5p suppressed cancer cells proliferation and invasion. Interestingly, bioinformatics analysis hints NR6A1 is the potential target gene of let-7a-5p. The regulation was validated by luciferase and quantitative reverse transcription polymerase chain reaction (qRT-PCR) in PTC tissue and the clinic tumors. Moreover, let-7a-5p regulated NR6A1 involved in PTC cells lipogensis in vitro and in vivo. Finally, let-7a-5p abrogates PCT xenograft tumors growth, NR6A1 expression and lipogenesis. Taken together, our data indicates that let-7a-5p suppresses PCT progression through decreased lipogenesis, the related let-7a-5p/NR6A1axis might be promising candidate targets for PTC treatment.
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Affiliation(s)
- Tao Zhao
- Department of Oncology, The Affiliated Jiangyin Hospital of Nantong University, Jiangyin, China
| | - Jinghui Sun
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
| | - Xiangdong Lu
- Department of Oncology, The Affiliated Jiangyin Hospital of Nantong University, Jiangyin, China
| | - Lingling Liu
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
| | - Lin Chen
- Department of Outpatient, North Sichuan Medical College, Nanchong, China
| | - Wei Zhao
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
| | - Bin Zhou
- Department of Thyroid and Breast Surgery, The Affiliated Jiangyin Hospital of Nantong University, Jiangyin, China
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8
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Long Y, Zhang Z, Yang X, Liu Y, Luo G, Zhang J, Li W. Enhanced Spectral Response of ZnO-Nanorod-Array-Based Ultraviolet Photodetectors by Alloying Non-Isovalent Cu-O with CuAlO 2 P-Type Layer. Nanomaterials (Basel) 2023; 13:nano13091472. [PMID: 37177017 PMCID: PMC10180443 DOI: 10.3390/nano13091472] [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: 03/18/2023] [Revised: 04/11/2023] [Accepted: 04/17/2023] [Indexed: 05/15/2023]
Abstract
CuAlO2 was synthesized by a hydrothermal method, in which the Cu-O dimers were incorporated by simply altering the ratio of the reactants and the temperature. The incorporation process increases the grain size in CuAlO2, and modulates the work function and binding energies for CuAlO2 due to the partial substitution of Cu+ 3d10 with Cu2+ 3d9 orbitals in the valence band maximum by alloying non-isovalent Cu-O with a CuAlO2 host. Based on the ZnO nanorod arrays (NRs) ultraviolet photodetector, CuAlO2/Cu-O fabricated by the low-cost drop-coating method was used as the p-type hole transport layer. The incorporation of the Cu-O clusters into CuAlO2 lattice to enhance the conductivity of CuAlO2 is an effective way for improving ZnO NRs/CuAlO2 device performance. The photodetectors exhibit significant diode behavior, with a rectification ratio approaching 30 at ±1 V, and a dark saturation current density 0.81 mA cm-2. The responsivity of the ZnO-NRs-based UV photodetector increases from 13.2 to 91.3 mA/W at 0 V bias, with an increase in the detectivity from 2.35 × 1010 to 1.71 × 1011 Jones. Furthermore, the ZnO NRs/[CuAlO2/Cu-O] photodetector exhibits a maximum responsivity of 5002 mA/W at 1.5 V bias under 375 nm UV illumination.
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Affiliation(s)
- Yuchen Long
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China
| | - Ziling Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China
| | - Xiutao Yang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China
| | - Yang Liu
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China
| | - Guangcan Luo
- School of Materials Science and Engineering, Guizhou Minzu University, Guiyang 550025, China
| | - Jingquan Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China
| | - Wei Li
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China
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9
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Miao H, Wu F, Li Y, Qin C, Zhao Y, Xie M, Dai H, Yao H, Cai H, Wang Q, Song X, Li L. MALAT1 modulates alternative splicing by cooperating with the splicing factors PTBP1 and PSF. Sci Adv 2022; 8:eabq7289. [PMID: 36563164 PMCID: PMC9788761 DOI: 10.1126/sciadv.abq7289] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Understanding how long noncoding RNAs (lncRNAs) cooperate with splicing factors (SFs) in alternative splicing (AS) control is fundamental to human biology and disease. We show that metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), a well-documented AS-implicated lncRNA, regulates AS via two SFs, polypyrimidine tract-binding protein 1 (PTBP1) and PTB-associated SF (PSF). MALAT1 stabilizes the interaction between PTBP1 and PSF, thereby forming a functional module that affects a network of AS events. The MALAT1-stabilized PTBP1/PSF interaction occurs in multiple cellular contexts; however, the functional module, relative to MALAT1 only, has more dominant pathological significance in hepatocellular carcinoma. MALAT1 also stabilizes the PSF interaction with several heterogeneous nuclear ribonucleoparticle proteins other than PTBP1, hinting a broad role in AS control. We present a model in which MALAT1 cooperates with distinct SFs for AS regulation and pose that, relative to analyses exclusively performed for lncRNAs, a comprehensive consideration of lncRNAs and their binding partners may provide more information about their biological functions.
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Affiliation(s)
- Hui Miao
- Center for Functional Genomics and Bioinformatics, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
- Department of Platform and Technology, lncTAC Company Limited, Chengdu, Sichuan 610219, China
| | - Fan Wu
- Center for Functional Genomics and Bioinformatics, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
- Department of Platform and Technology, lncTAC Company Limited, Chengdu, Sichuan 610219, China
| | - Yu Li
- Center for Functional Genomics and Bioinformatics, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
| | - Chenyu Qin
- Center for Functional Genomics and Bioinformatics, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
| | - Yongyun Zhao
- Center for Functional Genomics and Bioinformatics, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
| | - Mingfeng Xie
- Center for Functional Genomics and Bioinformatics, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
| | - Hongyuan Dai
- Center for Functional Genomics and Bioinformatics, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
| | - Hong Yao
- Center for Functional Genomics and Bioinformatics, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
- Department of Platform and Technology, lncTAC Company Limited, Chengdu, Sichuan 610219, China
| | - Haoyang Cai
- Center of Growth, Metabolism and Aging, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
| | - Qianhong Wang
- The First Accredited Outpatient Department of Western General Hospital, Chengdu, Sichuan 610091, China
| | - Xu Song
- Center for Functional Genomics and Bioinformatics, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
| | - Ling Li
- Center for Functional Genomics and Bioinformatics, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
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Gao X, Lv A, Lin F, Lu P, Zhang Y, Song W, Zhu X, Zhang H, Liao M, Song Y, Hu K, Zhang Y, Peng Y, Tang L, Yuan H, Xie L, Tang G, Nie X, Jin L, Fan S, Zhang X. Efficacy and safety of trabeculectomy versus peripheral iridectomy plus goniotomy in advanced primary angle-closure glaucoma: study protocol for a multicentre, non-inferiority, randomised controlled trial (the TVG study). BMJ Open 2022; 12:e062441. [PMID: 35788072 PMCID: PMC9255398 DOI: 10.1136/bmjopen-2022-062441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION Primary angle-closure glaucoma (PACG) is a major subtype of glaucoma that accounts for most bilateral glaucoma-related blindness globally. Filtering surgery is a conventional strategy for PACG, yet it has a long learning curve and undesirable disastrous complications. Minimally invasive glaucoma surgery (MIGS) plays an increasing role in the management of glaucoma due to its safer and faster recovery profile; cataract surgery-based MIGS is the most commonly performed such procedure in PACG. However, for patients with a transparent lens or no indications for cataract extraction, incorporation of MIGS into PACG treatment has not yet been reported. Therefore, this multicentre, non-inferiority, randomised controlled clinical trial aims to compare the efficacy and safety of trabeculectomy versus peripheral iridectomy plus an ab interno goniotomy in advanced PACG with no or mild cataracts. METHODS AND ANALYSIS This non-inferiority, multicentre, randomised controlled trial will be conducted at seven ophthalmic departments and institutes across China. Eighty-eight patients with no or mild cataracts and advanced PACG will be enrolled and randomised to undergo trabeculectomy or peripheral iridectomy plus ab interno goniotomy. Enrolled patients will undergo comprehensive ophthalmic examinations before and after surgery. The primary outcome is intraocular pressure (IOP) at 12 months postoperatively. The secondary outcomes are cumulative success rate of surgery, surgery-related complications and number of IOP-lowering medications. Participants will be followed up for 36 months postoperatively. ETHICS AND DISSEMINATION The study protocol was approved by the ethical committees of the Zhongshan Ophthalmic Center, Sun Yat-sen University, China (ID: 2021KYPJ191) and of all subcentres. All participants will be required to provide written informed consent. The results will be published in peer-reviewed journals and disseminated in international academic meetings. TRIAL REGISTRATION NUMBER NCT05163951.
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Affiliation(s)
- Xinbo Gao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, Guangdong, China
| | - Aiguo Lv
- Department of Ophthalmology, Handan City Eye Hospital (The Third Hospital of Handan), Handan, Hebei, China
| | - Fengbin Lin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, Guangdong, China
| | - Ping Lu
- Department of Ophthalmology, Handan City Eye Hospital (The Third Hospital of Handan), Handan, Hebei, China
| | - Yi Zhang
- Department of Ophthalmology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Wulian Song
- Department of Ophthalmology, The second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiaomin Zhu
- Department of Ophthalmology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hengli Zhang
- Department of Ophthalmology, Shijiazhuang People's Hospital, Shijiazhuang, Hebei, China
| | - Mengfei Liao
- Department of Ophthalmology, People's Hospital of Chongqing, Chongqing, China
| | - Yunhe Song
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, Guangdong, China
| | - Kun Hu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, Guangdong, China
| | - Yingzhe Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, Guangdong, China
| | - Yuying Peng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, Guangdong, China
| | - Li Tang
- Department of Ophthalmology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Huiping Yuan
- Department of Ophthalmology, The second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang, China
| | - Lin Xie
- Department of Ophthalmology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Guangxian Tang
- Department of Ophthalmology, Shijiazhuang People's Hospital, Shijiazhuang, Hebei, China
| | - Xin Nie
- Department of Ophthalmology, People's Hospital of Chongqing, Chongqing, China
| | - Ling Jin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, Guangdong, China
| | - Sujie Fan
- Department of Ophthalmology, Handan City Eye Hospital (The Third Hospital of Handan), Handan, Hebei, China
| | - Xiulan Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, Guangdong, China
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Song Y, Song W, Zhang Y, Zhang H, Xiao M, Zhao X, Lv A, Yan X, Lu P, Zhu X, Gao X, Hu K, Zhang Y, Liang X, Zhang X, Tang G, Lu L, Zhou M, Fan S, Xie L, Jin L, Tang L, Yuan H, Zhang X. Efficacy and safety of phacotrabeculectomy versus phacogoniotomy in advanced primary angle-closure glaucoma: study protocol for a multicentre non-inferiority randomised controlled trial (PVP Study). BMJ Open 2021; 11:e056876. [PMID: 34880029 PMCID: PMC8655519 DOI: 10.1136/bmjopen-2021-056876] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 11/11/2021] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION Primary angle-closure glaucoma (PACG) has a high prevalence and blinding rate across Asia. The first-line treatment of PACG is surgery, and phacotrabeculectomy remains the mainstream surgery for advanced PACG. However, it may cause vision-threatening complications with long learning curve. Minimally invasive glaucoma surgery has been gradually used in PACG combined with cataract surgery and achieved efficacy without excessive injury, of which goniotomy is the most commonly performed. Therefore, this study aimed to conduct a multicentre, non-inferiority randomised controlled clinical trial to compare the efficacy and safety of phacotrabeculectomy versus phacogoniotomy in advanced PACG. METHODS AND ANALYSIS This is a non-inferiority multicentre randomised controlled trial and will be conducted at eight ophthalmic departments and institutes in China. 124 patients with advanced PACG will be enrolled and randomised to undergo phacotrabeculectomy or phacogoniotomy. Comprehensive ophthalmic examinations will be performed before and after the surgery. The primary outcome is the change of intraocular pressure at 12 months after surgery compared with the baseline intraocular pressure. An extended follow-up period of 36 months will be required. Cumulative success rate of surgery, intraoperative and postoperative complications, and number of anti-glaucomatous medications will also be compared between the groups as secondary outcomes. ETHICS AND DISSEMINATION Ethical approval has been obtained from the ethical committee of Zhongshan Ophthalmic Center, Sun Yat-sen University, China (ID: 2021KYPJ090) and all subcentres. All the participants will be required to provide written informed consent. The results will be disseminated through scientific meetings and published in peer-reviewed journals. TRIAL REGISTRATION NUMBER NCT04878458.
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Affiliation(s)
- Yunhe Song
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wulian Song
- Department of Ophthalmology, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yi Zhang
- Department of Ophthalmology, Sichuan University West China Hospital, Chengdu, Sichuan, China
| | - Hengli Zhang
- Department of Ophthalmology, Shijiazhuang People's Hospital, Shijiazhuang, Hebei Province, China
| | - Meichun Xiao
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
| | - Xiaohuan Zhao
- Department of Ophthalmology, Shanghai General Hospital, Shanghai, China
| | - Aiguo Lv
- Handan City Eye Hospital, Handan, China
| | - Xiaowei Yan
- Department of Ophthalmology, Shijiazhuang People's Hospital, Shijiazhuang, Hebei Province, China
| | - Ping Lu
- Handan City Eye Hospital, Handan, China
| | - Xiaomin Zhu
- Department of Ophthalmology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xinbo Gao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Kun Hu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yingzhe Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiaohong Liang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xi Zhang
- Affliated Hospital of Guizhou Medical University, Guiyang, China
| | - Guangxian Tang
- Department of Ophthalmology, Shijiazhuang People's Hospital, Shijiazhuang, Hebei Province, China
| | - Lan Lu
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
| | - Minwen Zhou
- Department of Ophthalmology, Shanghai General Hospital, Shanghai, China
| | - Sujie Fan
- Handan City Eye Hospital, Handan, China
| | - Lin Xie
- Department of Ophthalmology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ling Jin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Li Tang
- Department of Ophthalmology, Sichuan University West China Hospital, Chengdu, Sichuan, China
| | - Huiping Yuan
- Department of Ophthalmology, Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiulan Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, China
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He Q, Xiang S, Wang W, Shu Y, Li Z, Wang S, Chen L, Yang X, Zhao T. Transcriptomic and photosynthetic responses to grafting of the Nod1 gene in nodulated and non-nodulated soybeans. G3 (Bethesda) 2021; 11:jkab209. [PMID: 34544123 PMCID: PMC8496209 DOI: 10.1093/g3journal/jkab209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 06/04/2021] [Indexed: 01/04/2023]
Abstract
Legume plants form symbiotic relationships with rhizobia to convert N2 into ammonia, and the nodulation status can affect plant development including photosynthesis. However, the relationship between nitrogen fixation and photosynthesis during carbon and nitrogen metabolism remains unclear. This study was undertaken to unravel regulation of nodulation and photosynthesis using a spontaneous nonnodulated soybean mutant by grafting. The results of inheritance and gene mapping showed that the nonnodulated mutant was controlled by a recessive gene overlapped with the reported rj1 locus, and might be a new rj1 allele with 1 bp deletion in the fourth exon in comparison to the sequence of normal nodulation plants. According to grafting results, soybean nodulation is obviously determined by the roots, not the seedlings. Moreover, nitrogen content along with related metabolic enzyme activity, and photosynthetic capacity were enhanced by nonnodulated scions grafted with nodulated roots. Contrary results were obtained for nodulated scions grafted with nonnodulated roots. A total of 853 differentially expressed genes (DEGs) in the leaves and 1874 in the roots were identified by transcriptome analyses of the grafting treatments. We identified 285 differential gene ontology (GO) terms and 57 differential pathway terms identified in the leaves, while 856 differential GO terms and 207 differential pathway terms in the roots. Twenty DEGs interacting at translation level were selected, and the results of transcriptome analyses were verified by q-PCR. These findings indicated that the nodulation-related Nod allelic gene increases the nitrogen content of nonnodulated plants, which affects the enzymes involved in nitrogen metabolism, leading to changes in hormone levels and further regulation of photosynthesis and carbon metabolism.
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Affiliation(s)
- Qingyuan He
- College of Life and Health Science, Anhui Science and Technology University, Fengyang 233100, China
- Soybean Research Institute/National Center for Soybean Improvement, Ministry of Agriculture/Key Laboratory of Biology and Genetic Improvement of Soybean/Ministry of Agriculture/National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Shihua Xiang
- Zigong Institute of Agricultural Sciences, Zigong 643000, China
| | - Wubin Wang
- Soybean Research Institute/National Center for Soybean Improvement, Ministry of Agriculture/Key Laboratory of Biology and Genetic Improvement of Soybean/Ministry of Agriculture/National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Yingjie Shu
- College of Life and Health Science, Anhui Science and Technology University, Fengyang 233100, China
| | - Zhengpeng Li
- College of Life and Health Science, Anhui Science and Technology University, Fengyang 233100, China
| | - Songhua Wang
- College of Life and Health Science, Anhui Science and Technology University, Fengyang 233100, China
| | - Lei Chen
- College of Life and Health Science, Anhui Science and Technology University, Fengyang 233100, China
| | - Xiaoyan Yang
- College of Life and Health Science, Anhui Science and Technology University, Fengyang 233100, China
| | - Tuanjie Zhao
- Soybean Research Institute/National Center for Soybean Improvement, Ministry of Agriculture/Key Laboratory of Biology and Genetic Improvement of Soybean/Ministry of Agriculture/National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
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13
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Sun X, Lu J, Yang MY, Huang SR, Du JB, Wang XC, Yang WY. Light-induced systemic signalling down-regulates photosynthetic performance of soybean leaves with different directional effects. Plant Biol (Stuttg) 2019; 21:891-898. [PMID: 30825360 DOI: 10.1111/plb.12980] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 02/27/2019] [Indexed: 06/09/2023]
Abstract
When plants are exposed to a heterogeneous environment, photosynthesis of leaves is not only determined by their local condition, but also by certain signals from other parts of the same plant, termed systemic regulation. Our present study was conducted to investigate the effects of light-dependent systemic regulation on the photosynthetic performance of soybean (Glycine max L. Merr.) under heterogeneous light conditions. Soybean plants were treated with heterogeneous light. Then gas exchange characteristics were measured to evaluate the photosynthetic performance of leaves. Parameters related to photosynthetic pigments, chlorophyll fluorescence, Rubisco and photosynthates were examined to study the mechanisms of light-dependent systemic regulation on photosynthesis. Light-induced systemic signalling by illuminated leaves reduced the Pn of both upper and lower non-illuminated leaves on the same soybean plant. The decrease in gs and increase in Ci in these non-illuminated leaves indicated restriction of carbon assimilation, which was further verified by the decline in content and activity of Rubisco. However, the activation state of Rubisco decreased only in upper non-illuminated leaves. Quantum efficiency of PSII (ΦPSII) and ETR also decreased only in upper non-illuminated leaves. Moreover, the effects of light-induced systemic signalling on carbohydrate content were also detectable only in upper non-illuminated leaves. Light-induced systemic signalling by illuminated leaves restricts carbon assimilation and down-regulates photosynthetic performance of non-illuminated leaves within a soybean plant. However, effects of such systemic regulation differed when regulated in upward or downward direction.
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Affiliation(s)
- X Sun
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Crop Eco-physiology and Farming System in Southwest China, Ministry of Agriculture, Chengdu, China
| | - J Lu
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Crop Eco-physiology and Farming System in Southwest China, Ministry of Agriculture, Chengdu, China
| | - M Y Yang
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
| | - S R Huang
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Crop Eco-physiology and Farming System in Southwest China, Ministry of Agriculture, Chengdu, China
| | - J B Du
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Crop Eco-physiology and Farming System in Southwest China, Ministry of Agriculture, Chengdu, China
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Chengdu, China
| | - X C Wang
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Crop Eco-physiology and Farming System in Southwest China, Ministry of Agriculture, Chengdu, China
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Chengdu, China
| | - W Y Yang
- Key Laboratory of Crop Eco-physiology and Farming System in Southwest China, Ministry of Agriculture, Chengdu, China
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Chengdu, China
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Xu Z, Liu W, Yang Y, Sun L, Deng Y, Liao L. Environmental-Friendly and Facile Synthesis of Co 3O 4 Nanowires and Their Promising Application with Graphene in Lithium-Ion Batteries. Nanoscale Res Lett 2017; 12:615. [PMID: 29214561 PMCID: PMC5718993 DOI: 10.1186/s11671-017-2382-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 11/22/2017] [Indexed: 06/01/2023]
Abstract
In this work, we developed an eco-friendly strategy for preparing Co3O4 nanowires. The process consisted of two steps: controllable synthesis of metal cobalt nanowires followed by a facile air-oxidization step. The 1D nanowire structure with a high aspect ratio was easily achieved via a magnetic-field-assisted self-assembly of cobalt ion complexes during reduction. After air-calcinations, the Co3O4 nanowires were prepared in large scale and ready to be used as the anode material for lithium-ion batteries. The Co3O4 nanowires, which possessed a length ranging from 3 to 8 μm with the aspect ratio more than 15, exhibited a reversible lithium storage capacity up to ~ 790 mAh/g when using a small amount of defect-free graphene flakes as conductive additives. The superior electrochemical performances were ascribable to the synergistic "flat-on" effect between the 1D nanowires and the 2D graphene. Therefore, the Co3O4 nanowire/graphene composite holds promising application for lithium-ion batteries.
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Affiliation(s)
- Zhiqiang Xu
- School of Chemical Engineering, Sichuan University, Chengdu, 610065 China
| | - Wei Liu
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu, 610065 China
| | - Yuanyi Yang
- Department of Materials Engineering, Sichuan College of Architectural Technology, Deyang, 618000 China
| | - Lijuan Sun
- School of Chemical Engineering, Sichuan University, Chengdu, 610065 China
| | - Yi Deng
- School of Chemical Engineering, Sichuan University, Chengdu, 610065 China
| | - Li Liao
- School of Chemical Engineering, Sichuan University, Chengdu, 610065 China
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