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Zhu G, Zhang H, Xia M, Liu Y, Li M. EH domain-containing protein 2 (EHD2): Overview, biological function, and therapeutic potential. Cell Biochem Funct 2024; 42:e4016. [PMID: 38613224 DOI: 10.1002/cbf.4016] [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: 10/10/2023] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024]
Abstract
EH domain-containing protein 2 (EHD2) is a member of the EHD protein family and is mainly located in the plasma membrane, but can also be found in the cytoplasm and endosomes. EHD2 is also a nuclear-cytoplasmic shuttle protein. After entering the cell nuclear, EHD2 acts as a corepressor of transcription to inhibit gene transcription. EHD2 regulates a series of biological processes. As a key regulator of endocytic transport, EHD2 is involved in the formation and maintenance of endosomal tubules and vesicles, which are critical for the intracellular transport of proteins and other substances. The N-terminal of EHD2 is attached to the cell membrane, while its C-terminal binds to the actin-binding protein. After binding, EHD2 connects with the actin cytoskeleton, forming the curvature of the membrane and promoting cell endocytosis. EHD2 is also associated with membrane protein trafficking and receptor signaling, as well as in glucose metabolism and lipid metabolism. In this review, we highlight the recent advances in the function of EHD2 in various cellular processes and its potential implications in human diseases such as cancer and metabolic disease. We also discussed the prospects for the future of EHD2. EHD2 has a broad prospect as a therapeutic target for a variety of diseases. Further research is needed to explore its mechanism, which could pave the way for the development of targeted treatments.
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Affiliation(s)
- Guoqiang Zhu
- Department of Urology, Hengyang Medical School, The First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Hu Zhang
- Department of Urology, Hengyang Medical School, The First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Min Xia
- Hengyang Medical School, Institute of Clinical Medicine, The First Affiliated Hospital, University of South China, Hengyang, Hunan, China
- Hengyang Medical School, Cancer Research Institute, The First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Yiqi Liu
- Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Mingyong Li
- Department of Urology, Hengyang Medical School, The First Affiliated Hospital, University of South China, Hengyang, Hunan, China
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Zhu Y, Bao M, Wang T, Ai X, Qiu D, Wang C. Novel therapeutic targets, including IGFBP3, of umbilical cord mesenchymal stem-cell-conditioned medium in intrauterine adhesion. Biol Open 2024; 13:bio060141. [PMID: 38224009 PMCID: PMC10886714 DOI: 10.1242/bio.060141] [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: 09/20/2023] [Accepted: 01/08/2024] [Indexed: 01/16/2024] Open
Abstract
Mesenchymal stem cells play important roles in repairing injured endometrium. However, the molecular targets and potential mechanism of the endometrial recipient cells for stem cell therapy in intrauterine adhesion (IUA) are poorly understood. In this study, umbilical cord mesenchymal stem-cell-conditioned medium (UCMSCs-CM) produced positive effects on a Transforming growth factor beta (TGF-β) induced IUA cell model. RNA-sequencing was performed on clinical IUA tissues, and the top 40 upregulated and top 20 downregulated mRNAs were selected and verified using high-throughput (HT) qPCR in both tissues and cell models. Based on a bioinformatic analysis of RNA-sequencing and HT-qPCR results, 11 mRNAs were uncovered to be the intervention targets of UCMSCs-CM on IUA endometrium cell models. Among them, IGFBP3 was striking as a key pathogenic gene and a potential diagnostic marker of IUA, which exhibited the area under the curve (AUC), sensitivity, specificity were 0.924, 93.1% and 80.6%, respectively in 60 endometrial tissues. The silencing of IGFBP3 exerted positive effects on the IUA cell model through partially upregulating MMP1 and KLF2. In conclusion, RNA-sequencing combined with HT qPCR based on clinical tissues and IUA cell models were used in IUA research and our results may provide some scientific ideas for the diagnosis and treatment of IUA.
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Affiliation(s)
- Yuan Zhu
- Department of Gynecology, Jiangxi Maternal and Child Health Hospital, Nanchang, 330000, China
- Department of Obstetrics and Gynecology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330000, China
| | - Mingjie Bao
- Department of Gynecology, Jiangxi Maternal and Child Health Hospital, Nanchang, 330000, China
| | - Ting Wang
- Department of Gynecology, Jiangxi Maternal and Child Health Hospital, Nanchang, 330000, China
| | - Xiaoyan Ai
- Department of Gynecology, Jiangxi Maternal and Child Health Hospital, Nanchang, 330000, China
| | - Dewen Qiu
- Clinical laboratory, Jiangxi Maternal and Child Health Hospital, Nanchang, 330000, China
| | - Changhua Wang
- Department of Gynecology, Jiangxi Maternal and Child Health Hospital, Nanchang, 330000, China
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Zhou YP, Li P, Zhang Y, Wang XZ, Yang B, Mei MJ, Chen S, Cheng H, Zhang W, Luo MH. A case of congenital human cytomegalovirus infection with placental and pulmonary calcification despite presence of intrauterine IgG. J Med Virol 2023; 95:e29327. [PMID: 38112155 DOI: 10.1002/jmv.29327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 12/20/2023]
Affiliation(s)
- Yue-Peng Zhou
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China
| | - Ping Li
- Xiangya Hospital, Central South University, Changsha, China
| | - Youming Zhang
- Xiangya Hospital, Central South University, Changsha, China
| | - Xian-Zhang Wang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Bo Yang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Meng-Jie Mei
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Shizhen Chen
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China
| | - Han Cheng
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Weishe Zhang
- Xiangya Hospital, Central South University, Changsha, China
| | - Min-Hua Luo
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
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Tan Y, Yin J, Cao J, Xie B, Zhang F, Xiong W. Genetically Determined Metabolites in Graves Disease: Insight From a Mendelian Randomization Study. J Endocr Soc 2023; 8:bvad149. [PMID: 38116129 PMCID: PMC10729855 DOI: 10.1210/jendso/bvad149] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Indexed: 12/21/2023] Open
Abstract
Context Graves disease (GD) is a prevalent autoimmune disorder with a complex etiology. The association between serum metabolites and GD remains partially understood. Objective This study aimed to elucidate the causal connections between serum metabolites and predisposition to GD, examining potential genetic interplay. Methods A 1-sample Mendelian randomization (MR) study was conducted on the GD analysis that included 2836 cases and 374 441 controls. We utilized genome-wide association study summary data from the FinnGen project, analyzing the causal impact of 486 serum metabolites on GD. Approaches used were the inverse variance weighted methodology, Cochran's Q test, MR-Egger regression, MR-PRESSO, Steiger test, and linkage disequilibrium score regression analyses to assess genetic influence on metabolites and GD. Results 19 metabolites were identified as having a pronounced association with GD risk, of which 10 maintained noteworthy correlations after stringent sensitivity assessments. Three metabolites exhibited significant heritability: kynurenine (OR 3.851, P = 6.09 × 10-4), a risk factor; glycerol 2-phosphate (OR 0.549, P = 3.58 × 10-2) and 4-androsten-3beta,17beta-diol disulfate 2 (OR 0.461, P = 1.34 × 10-2) were recognized as protective factors against GD. Crucially, all 3 exhibited no shared genetic interrelation with GD, further substantiating their potential causal significance in the disease. Conclusion This study unveils pivotal insights into the intricate relationships between serum metabolites and GD risk. By identifying specific risk and protective factors, it opens avenues for more precise disease understanding and management. The findings underline the importance of integrating genomics with metabolomics to fathom the multifaceted nature of GD.
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Affiliation(s)
- Yao Tan
- Department of Ophthalmology, The Third Xiangya Hospital, Central South University, Changsha City 410013, China
- Postdoctoral Station of Clinical Medicine, The Third Xiangya Hospital, Central South University, Changsha City 410013, China
| | - Jiayang Yin
- Department of Ophthalmology, The Third Xiangya Hospital, Central South University, Changsha City 410013, China
| | - Jiamin Cao
- Department of Ophthalmology, The Third Xiangya Hospital, Central South University, Changsha City 410013, China
| | - Bingyu Xie
- Department of Ophthalmology, The Third Xiangya Hospital, Central South University, Changsha City 410013, China
| | - Feng Zhang
- Department of Ophthalmology, The Third Xiangya Hospital, Central South University, Changsha City 410013, China
| | - Wei Xiong
- Department of Ophthalmology, The Third Xiangya Hospital, Central South University, Changsha City 410013, China
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Nie K, Zheng Z, Li J, Chang Y, Deng Z, Huang W, Li X. AGAP2-AS1 promotes the assembly of m6A methyltransferases and activation of the IL6/STAT3 pathway by binding with WTAP in the carcinogenesis of gastric cancer. FASEB J 2023; 37:e23302. [PMID: 37983949 DOI: 10.1096/fj.202301249r] [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: 06/20/2023] [Revised: 08/29/2023] [Accepted: 10/26/2023] [Indexed: 11/22/2023]
Abstract
Owing to the lack of biomarkers for early diagnosis, gastric cancer (GC) is often associated with a poor prognosis. Thus, there is an urgent need to identify early molecular targets in GC. Dysregulated long noncoding RNAs (lncRNAs) have been evaluated by integrated bioinformatics analysis; and we investigate their specific role and potential mechanism via N6-methyladenosine (m6A) methylation modification in the carcinogenesis and progression of GC. In this study, we report upregulation of lncRNA AGAP2-AS1, activated by a gain of H3K4Me3, in GC tissues and cells. AGAP2-AS1 was linked to adverse prognosis in patients with GC. Functionally, AGAP2-AS1 knockdown inhibited cell proliferation and migration of GC cells. Mechanistically, AGAP2-AS1 bound WT1-associated protein (WTAP) to promote the formation of the WTAP/methyltransferase-like 3 (METTL3)/METTL14 m6A methyltransferase complex. AGAP2-AS1 stabilized signal transducer and activator of transcription 3 (STAT3) mRNA in an m6A-dependent manner and, thus, activated the interleukin 6 (IL6)/STAT3 pathway. Importantly, activation of the AGAP2-AS1/WTAP/STAT3 pathways promoted cell proliferation and migration in GC. Collectively, the present findings revealed a novel regulatory relationship between lncRNA and m6A modification. Furthermore, targeting the AGAP2-AS1/WTAP/STAT3 axis may be a promising strategy for the inhibition of inflammation-mediated carcinogenesis and progression in GC.
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Affiliation(s)
- Kechao Nie
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Zhihua Zheng
- Department of Gastroenterology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - Jing Li
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yonglong Chang
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Zhitong Deng
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei Huang
- Department of Integrated Traditional Chinese & Western Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Xiushen Li
- Department of Obstetrics and Gynaecology, Shenzhen University General Hospital, Shenzhen, China
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, China
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Zhu Y, Liu K, Zhu H, Wu H. Immune checkpoint inhibitors plus chemotherapy for HER2-negative advanced gastric/gastroesophageal junction cancer: a cost-effectiveness analysis. Therap Adv Gastroenterol 2023; 16:17562848231207200. [PMID: 37928895 PMCID: PMC10624011 DOI: 10.1177/17562848231207200] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 09/19/2023] [Indexed: 11/07/2023] Open
Abstract
Background Nivolumab plus chemotherapy (NC) was recently approved as the first-line intervention for human epidermal growth factor receptor 2-negative advanced gastric/gastroesophageal junction cancer (GC/GEJC). Moreover, in the latest KEYNOTE-859 (NCT03675737), pembrolizumab plus chemotherapy (PC) was demonstrated to produce remarkable patient survival outcomes. Objectives The clinicians and patients need to assess NC and PC preference for cancer drugs. Design The cost-effective analysis. Methods In an economic assessment of the United States, United Kingdom, and Chinese healthcare systems using a Markov model simulated patients with GC/GEJC, two treatment decision branches with three health states and a tracked time horizon of 15 years were developed. The overall cost and efficacy outcomes of first-line strategies PC and NC were evaluated at willingness-to-pay (WTP) thresholds of different national, including life-years (LYs), quality-adjusted life-years (QALYs), incremental cost-effectiveness ratios (ICERs), and incremental net-health benefit (INHB). Sensitivity and subgroup analyses were considered. Results Given a WTP threshold of $150,000, $60,161, and $37,653 per QALY in the United States, United Kingdom, and China, respectively, both PC and NC achieved QALYs of 1.67 and 1.65 (2.51 and 2.48 LYs), 1.65 and 1.63 (2.48 and 2.45 LYs), and 1.60 and 1.58 (2.40 and 2.37 LYs), with total costs of $242,444 and $232,617, $148,367 and $127,737, and $16,693 and $24,016, respectively. Based on our sensitivity analysis, the programmed death-1 inhibitors cost produced the largest impact on the outcome. In addition, the cost-effectiveness probabilities of PC were 38.3%, 4.1%, and 100% in the three aforementioned countries, respectively. Conclusion In the case of the Chinese payers' perspective, PC appeared more dominant as first-line therapy for advanced GC/GEJC patients, whereas NC was preferred in the United States and United Kingdom.
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Affiliation(s)
- Youwen Zhu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Kun Liu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hong Zhu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Haijun Wu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
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Tang D, Duan Z, Liu L, Jia Z, Lang L, Tan Y. Design and Application of Portable Centrifuge Inspired by a Hand-Powered Spinning Top. Micromachines (Basel) 2023; 14:1968. [PMID: 37893405 PMCID: PMC10609382 DOI: 10.3390/mi14101968] [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: 10/01/2023] [Revised: 10/17/2023] [Accepted: 10/21/2023] [Indexed: 10/29/2023]
Abstract
Traditional centrifuges, extensively employed in biology, chemistry, medicine, and other domains for tasks such as blood separation and pathogen extraction, have certain limitations. Their high cost, substantial size, and reliance on electricity restrict their range of application. Contemporary centrifuges, inspired by everyday items like paper trays and egg beaters, boast characteristics such as ease of operation, independence from electricity, and portability. These features offer unique advantages in specific situations, such as electricity shortages, inadequate infrastructure, and challenging medical conditions. Consequently, we designed a hand-powered portable centrifuge driven by pulling a rope. Our experiments revealed significant performance factors, including load capacity, rope length, and frequency of rope pulling. The results demonstrated that the revolutions per minute (RPM) of a hand-powered portable centrifuge were directly proportional to the length of the rope and the frequency of pulling, up to a certain limit, while inversely proportional to the load. When used for separating and washing polystyrene microspheres, the portable centrifuge's performance equaled that of traditional centrifuges. According to relevant calculations, this centrifuge could be capable of meeting the application of blood separation. Therefore, we believe this portable centrifuge will find meaningful applications in similar areas, particularly in resource-poor settings.
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Affiliation(s)
- Dongbao Tang
- School of Electrical Engineering, Ultra-Fast/Micro-Nano Technology and Advanced Laser Manufacturing Key Laboratory of Hunan Province, University of South China, Hengyang 421001, China; (D.T.); (L.L.); (Z.J.)
| | - Ziwei Duan
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-Sen University, Shenzhen 518107, China;
| | - Luxuan Liu
- School of Electrical Engineering, Ultra-Fast/Micro-Nano Technology and Advanced Laser Manufacturing Key Laboratory of Hunan Province, University of South China, Hengyang 421001, China; (D.T.); (L.L.); (Z.J.)
| | - Zhaoyuan Jia
- School of Electrical Engineering, Ultra-Fast/Micro-Nano Technology and Advanced Laser Manufacturing Key Laboratory of Hunan Province, University of South China, Hengyang 421001, China; (D.T.); (L.L.); (Z.J.)
| | - Lijun Lang
- Department of Computer Science and Engineering, Ho Sin-Hang Engineering Building, Chinese University of Hong Kong, Hong Kong 999077, Hong Kong SAR, China;
| | - Yuyu Tan
- School of Electrical Engineering, Ultra-Fast/Micro-Nano Technology and Advanced Laser Manufacturing Key Laboratory of Hunan Province, University of South China, Hengyang 421001, China; (D.T.); (L.L.); (Z.J.)
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Zhu R, Tan S, Wang Y, Zhang L, Huang L. Physicochemical Properties and Hypolipidemic Activity of Dietary Fiber from Rice Bran Meal Obtained by Three Oil-Production Methods. Foods 2023; 12:3695. [PMID: 37835348 PMCID: PMC10572562 DOI: 10.3390/foods12193695] [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: 09/15/2023] [Revised: 10/04/2023] [Accepted: 10/07/2023] [Indexed: 10/15/2023] Open
Abstract
This study investigated the effects of three oil production methods on the physicochemical properties of dietary fiber from rice bran flour, and the hypolipidemic effects of the dietary fibers were investigated in vitro and in vivo. The particle size results showed that the organic-solvent-impregnated rice bran meal dietary fiber (N-RBDF) had the smallest average particle size and the aqueous enzymatic rice bran meal dietary fiber (E-RBDF) had the narrowest particle size distribution. Scanning electron microscopy (SEM) results demonstrated that all three kinds of rice bran meal dietary fibers (RBDFs) were irregularly flaky. Fourier transform infrared spectroscopy (FT-IR) results revealed that the three RBDFs had similar reactive groups, and X-ray diffraction (XRD) results indicated that all three RBDFs were cellulose type I crystals. The results of thermogravimetric analysis showed that the lignin content of N-RBDF was significantly lower than that of the other two. Among the three kinds of RBDFs, E-RBDF had higher water retention capacity, swelling capacity, oil holding capacity, and adsorption capacity for cholesterol and sodium bile salts. The results of experimental studies in hyperlipidemic rats showed that all three kinds of RBDFs significantly reduced triglycerides (TG), total cholesterol (TC), and low-density lipoprotein cholesterol (LDL-C) and elevated high-density lipoprotein cholesterol (HDL-C) in the serum of hyperlipidemic rats; they also significantly lowered malondialdehyde (MDA) and elevated total superoxide dismutase (T-SOD) and glutathione peroxidase (GSH-Px) activities in the livers of rats. In addition, all three kinds of RBDFs decreased aminotransferase (ALT) and aminotransferase (AST) activity in serum and also improved liver steatosis and reduced atherosclerosis index (AI) in rats with hyperlipidemia. Our study provides a reference for the development and utilization of rice bran meal and the application of rice bran meal dietary fiber in food processing.
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Affiliation(s)
- Renwei Zhu
- School of Materials and Chemical Engineering, Tongren University, Tongren 554300, China
- School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
- Hunan Key Laboratory of Processed Food for Special Medical Purpose, Changsha 410004, China
| | - Sha Tan
- School of Materials and Chemical Engineering, Tongren University, Tongren 554300, China
| | - Yayi Wang
- School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
- Hunan Key Laboratory of Processed Food for Special Medical Purpose, Changsha 410004, China
| | - Linwei Zhang
- School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
- Hunan Key Laboratory of Processed Food for Special Medical Purpose, Changsha 410004, China
| | - Liang Huang
- School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
- Hunan Key Laboratory of Processed Food for Special Medical Purpose, Changsha 410004, China
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Yan Y, Liu Y, Zeng C, Xia H. Effect of Digestion on Ursolic Acid Self-Stabilized Water-in-Oil Emulsion: Role of Bile Salts. Foods 2023; 12:3657. [PMID: 37835309 PMCID: PMC10572770 DOI: 10.3390/foods12193657] [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: 08/28/2023] [Revised: 09/25/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
Exploring the effect of bile salts on the properties of emulsion carriers containing hydrophobic bioactive compounds is particularly critical to understanding the stability and bioavailability of these hydrophobic bioactive compounds in the digestive process. In this study, the effects of bile salts on the stability and digestive characteristics of the ursolic acid (UA) self-stabilized water-in-oil (W/O) emulsion were investigated via static and dynamic (with or without enzyme) in vitro simulated digestive systems. The results showed that under the static system, the basic conditions had less interference, while the bile salts had a significant effect on the appearance and microstructure of the emulsion. The primary mechanism of emulsion instability is hydrophobic binding and depletion flocculation. Under the dynamic condition, it was found that the low concentrations of bile salts can promote the release amount and the rate of free fatty acids via displacement, while high concentrations of bile salts inhibit the decomposition of lipid, which may be related to the secondary coverage formed at the interface by the bile salts. These findings provide a theoretical basis for understanding the digestive behavior of the UA emulsion and its interaction with bile salts, which are conducive to developing and designing new emulsions to improve the bioaccessibility of UA.
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Affiliation(s)
- Yumeng Yan
- Department of Food Science and Technology, College of Food Science and Technology, Hunan Agricultural University, No.1 Nongda Road, Furong District, Changsha 410128, China; (Y.Y.); (Y.L.); (C.Z.)
- Department of Food Science and Technology, College of Food Science and Technology, South China University of Technology, Guangzhou 510640, China
| | - Yugang Liu
- Department of Food Science and Technology, College of Food Science and Technology, Hunan Agricultural University, No.1 Nongda Road, Furong District, Changsha 410128, China; (Y.Y.); (Y.L.); (C.Z.)
| | - Chaoxi Zeng
- Department of Food Science and Technology, College of Food Science and Technology, Hunan Agricultural University, No.1 Nongda Road, Furong District, Changsha 410128, China; (Y.Y.); (Y.L.); (C.Z.)
| | - Huiping Xia
- Department of Food Science and Technology, College of Food Science and Technology, Hunan Agricultural University, No.1 Nongda Road, Furong District, Changsha 410128, China; (Y.Y.); (Y.L.); (C.Z.)
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Mo P, Zhou F, Luo X, Zhang Y, Deng A, Xie P, Wang Y. Streptomyces argyrophyllae sp. nov., isolated from the rhizosphere soil of Cathaya argyrophylla. Arch Microbiol 2023; 205:329. [PMID: 37682340 DOI: 10.1007/s00203-023-03668-9] [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: 04/16/2023] [Accepted: 08/28/2023] [Indexed: 09/09/2023]
Abstract
Strain Jing01T, a novel actinomycete from rhizosphere soil of Cathaya argyrophylla, was identified using a polyphasic approach. 16S rRNA gene sequence analysis of strain Jing01T revealed that it was a member of the genus Streptomyces and shared 99.03%, 99.03%, 98.96%, 98.89%, 98.83%, 98.82%, 98.76%, 98.74%, 98.73%, 98.69% and 98.68% similarities to Streptomyces rochei NRRL B-2410T, Streptomyces naganishii NBRC 12892T, Streptomyces rubradiris JCM 4955T, Streptomyces anandii NRRL B-3590T, Streptomyces aurantiogriseus NBRC 12842T, Streptomyces mutabilis NBRC 12800T, Streptomyces rameus LMG 20326T, Streptomyces djakartensis NBRC 15409T, Streptomyces bangladeshensis JCM 14924T, Streptomyces andamanensis KCTC 29502T and Streptomyces tuirus NBRC 15617T, respectively. In phylogenetic trees constructed based on 16S rRNA gene sequences, strain Jing01T generated a separate branch at the middle of the clade, suggesting it could be a potential novel species. In phylogenomic tree, strain Jing01T was related to S. rubradiris JCM 4955T. In phylogenetic trees based on the gene sequences of atpD, gyrB, recA, rpoB and trpB, strain Jing01T was related to S. bangladeshensis JCM 14924T and S. rubradiris JCM 4955T. Whereas, the multilocus sequence analysis distance, average nucleotide identity and DNA-DNA hybridization values between them were much less than the species-level thresholds. This conclusion was further supported by phenotypic and chemotaxonomic analysis. Consequently, strain Jing01T represents a new Streptomyces species, for which the proposed name is Streptomyces argyrophyllae sp. nov. The type strain is Jing01T (= MCCC 1K05707T = JCM 35923T).
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Affiliation(s)
- Ping Mo
- Key Laboratory of Agricultural Products Processing and Food Safety in Hunan Higher Education, Science and Technology Innovation Team for Efficient Agricultural Production and Deep Processing at General University in Hunan Province, Hunan Provincial Key Laboratory for Health Aquaculture and Product Processing in Dongting Lake Area, Hunan Provincial Key Laboratory for Molecular Immunity Technology of Aquatic Animal Diseases, State Key Laboratory of Developmental Biology of Freshwater Fish, College of life and environmental sciences, Hunan University of Arts and Science, Changde, 415000, Hunan, China
| | - Fumin Zhou
- Key Laboratory of Agricultural Products Processing and Food Safety in Hunan Higher Education, Science and Technology Innovation Team for Efficient Agricultural Production and Deep Processing at General University in Hunan Province, Hunan Provincial Key Laboratory for Health Aquaculture and Product Processing in Dongting Lake Area, Hunan Provincial Key Laboratory for Molecular Immunity Technology of Aquatic Animal Diseases, State Key Laboratory of Developmental Biology of Freshwater Fish, College of life and environmental sciences, Hunan University of Arts and Science, Changde, 415000, Hunan, China
| | - Xiyu Luo
- Key Laboratory of Agricultural Products Processing and Food Safety in Hunan Higher Education, Science and Technology Innovation Team for Efficient Agricultural Production and Deep Processing at General University in Hunan Province, Hunan Provincial Key Laboratory for Health Aquaculture and Product Processing in Dongting Lake Area, Hunan Provincial Key Laboratory for Molecular Immunity Technology of Aquatic Animal Diseases, State Key Laboratory of Developmental Biology of Freshwater Fish, College of life and environmental sciences, Hunan University of Arts and Science, Changde, 415000, Hunan, China
| | - Ying Zhang
- Key Laboratory of Agricultural Products Processing and Food Safety in Hunan Higher Education, Science and Technology Innovation Team for Efficient Agricultural Production and Deep Processing at General University in Hunan Province, Hunan Provincial Key Laboratory for Health Aquaculture and Product Processing in Dongting Lake Area, Hunan Provincial Key Laboratory for Molecular Immunity Technology of Aquatic Animal Diseases, State Key Laboratory of Developmental Biology of Freshwater Fish, College of life and environmental sciences, Hunan University of Arts and Science, Changde, 415000, Hunan, China
| | - Aihua Deng
- Key Laboratory of Agricultural Products Processing and Food Safety in Hunan Higher Education, Science and Technology Innovation Team for Efficient Agricultural Production and Deep Processing at General University in Hunan Province, Hunan Provincial Key Laboratory for Health Aquaculture and Product Processing in Dongting Lake Area, Hunan Provincial Key Laboratory for Molecular Immunity Technology of Aquatic Animal Diseases, State Key Laboratory of Developmental Biology of Freshwater Fish, College of life and environmental sciences, Hunan University of Arts and Science, Changde, 415000, Hunan, China
| | - Peng Xie
- Key Laboratory of Agricultural Products Processing and Food Safety in Hunan Higher Education, Science and Technology Innovation Team for Efficient Agricultural Production and Deep Processing at General University in Hunan Province, Hunan Provincial Key Laboratory for Health Aquaculture and Product Processing in Dongting Lake Area, Hunan Provincial Key Laboratory for Molecular Immunity Technology of Aquatic Animal Diseases, State Key Laboratory of Developmental Biology of Freshwater Fish, College of life and environmental sciences, Hunan University of Arts and Science, Changde, 415000, Hunan, China.
| | - Yun Wang
- Key Laboratory of Agricultural Products Processing and Food Safety in Hunan Higher Education, Science and Technology Innovation Team for Efficient Agricultural Production and Deep Processing at General University in Hunan Province, Hunan Provincial Key Laboratory for Health Aquaculture and Product Processing in Dongting Lake Area, Hunan Provincial Key Laboratory for Molecular Immunity Technology of Aquatic Animal Diseases, State Key Laboratory of Developmental Biology of Freshwater Fish, College of life and environmental sciences, Hunan University of Arts and Science, Changde, 415000, Hunan, China
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11
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Wu K, Kong F, Zhang J, Tang Y, Chen Y, Chao L, Nie L, Huang Z. Recent Progress in Single-Nucleotide Polymorphism Biosensors. Biosensors (Basel) 2023; 13:864. [PMID: 37754098 PMCID: PMC10527258 DOI: 10.3390/bios13090864] [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: 07/19/2023] [Revised: 08/23/2023] [Accepted: 08/26/2023] [Indexed: 09/28/2023]
Abstract
Single-nucleotide polymorphisms (SNPs), the most common form of genetic variation in the human genome, are the main cause of individual differences. Furthermore, such attractive genetic markers are emerging as important hallmarks in clinical diagnosis and treatment. A variety of destructive abnormalities, such as malignancy, cardiovascular disease, inherited metabolic disease, and autoimmune disease, are associated with single-nucleotide variants. Therefore, identification of SNPs is necessary for better understanding of the gene function and health of an individual. SNP detection with simple preparation and operational procedures, high affinity and specificity, and cost-effectiveness have been the key challenge for years. Although biosensing methods offer high specificity and sensitivity, as well, they suffer drawbacks, such as complicated designs, complicated optimization procedures, and the use of complicated chemistry designs and expensive reagents, as well as toxic chemical compounds, for signal detection and amplifications. This review aims to provide an overview on improvements for SNP biosensing based on fluorescent and electrochemical methods. Very recently, novel designs in each category have been presented in detail. Furthermore, detection limitations, advantages and disadvantages, and challenges have also been presented for each type.
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Affiliation(s)
| | | | | | | | | | | | - Libo Nie
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; (K.W.); (F.K.); (J.Z.); (Y.T.); (Y.C.); (L.C.)
| | - Zhao Huang
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; (K.W.); (F.K.); (J.Z.); (Y.T.); (Y.C.); (L.C.)
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12
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Yang H, Cao J, Li JM, Li C, Zhou WW, Luo JW. Exploration of the molecular mechanism of tea polyphenols against pulmonary hypertension by integrative approach of network pharmacology, molecular docking, and experimental verification. Mol Divers 2023:10.1007/s11030-023-10700-z. [PMID: 37486473 DOI: 10.1007/s11030-023-10700-z] [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: 02/20/2023] [Accepted: 07/10/2023] [Indexed: 07/25/2023]
Abstract
Pulmonary hypertension, a common complication of chronic obstructive pulmonary disease, is a major global health concern. Green tea is a popular beverage that is consumed all over the world. Green tea's active ingredients are epicatechin derivatives, also known as "polyphenols," which have anti-carcinogenic, anti-inflammatory, and antioxidant properties. This study aimed to explore the possible mechanism of green tea polyphenols in the treatment of pulmonary hypertension using network pharmacology, molecular docking, and experimental verification. A total of 316 potential green tea polyphenols-related targets were obtained from the PharmMapper, SwissTargetPrediction, and TargetNet databases. A total of 410 pulmonary hypertension-related targets were predicted by the CTD, DisGeNET, pharmkb, and GeneCards databases. Green tea polyphenols-related targets were hit by the 49 targets associated with pulmonary hypertension. AKT1 and HIF1-α were identified through the FDA drugs-target network and PPI network combined with GO functional annotation and KEGG pathway enrichment. Molecular docking results showed that green tea polyphenols had strong binding abilities to AKT1 and HIF1-α. In vitro experiments showed that green tea polyphenols inhibited the proliferation and migration of hypoxia stimulated pulmonary artery smooth muscle cells by decreasing AKT1 phosphorylation and downregulating HIF1α expression. Collectively, green tea polyphenols are promising phytochemicals against pulmonary hypertension.
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Affiliation(s)
- Huan Yang
- Department of Pulmonary and Critical Care Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, Hunan, China
| | - Jun Cao
- Department of Pulmonary and Critical Care Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, Hunan, China
| | - Jian-Min Li
- Department of Pulmonary and Critical Care Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, Hunan, China
| | - Cheng Li
- Department of Pulmonary and Critical Care Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, Hunan, China
| | - Wen-Wu Zhou
- Department of Cardiovascular Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, Hunan, China
| | - Jin-Wen Luo
- Department of Cardio-Thoracic Surgery, Hunan Children's Hospital, Changsha, 410007, Hunan, China.
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13
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Zhang X, Wang N, Zheng G, Liu D, Zhang Q, Lei W, Xia X, Xiong S. A Modified Single-Armed Suture Technique for Traumatic Cyclodialysis Cleft with Vitreoretinal Injury. J Clin Med 2023; 12:4252. [PMID: 37445287 DOI: 10.3390/jcm12134252] [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: 03/14/2023] [Revised: 06/12/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
Our aim was to assess the therapeutic efficacy of a modified single-arm suture technique on traumatic cyclodialysis cleft with vitreoretinal injury. The procedure involved fixing a detached ciliary body using a single-armed 10-0 polypropylene suture under the assistance of a 29-gauge needle. Patients with a traumatic cyclodialysis cleft combined with an anterior and posterior segment injury who underwent modified internal cyclopexy together with vitreoretinal surgery were enrolled in this study. Ultrasound biomicroscopy (UBM) was used to diagnose and evaluate the cyclodialysis and anterior segment injury. B-scan ultrasonography was performed to assess the condition of the vitreous, retina and choroid. The surgical time and successful rate for repairing the cyclodialysis cleft were recorded. Preoperative and postoperative best-corrected visual acuity (BCVA), and intraocular pressure (IOP) were documented for assessment. The study included 20 eyes. The extent of the cyclodialysis cleft was from 30° to 360°. Besides a traumatic cyclodialysis cleft, the included cases also combined this with vitreous hemorrhages, retinal detachment, macular holes, choroid avulsion, and suprachoroidal hemorrhage. All the clefts were anatomically closed in one surgery. The average surgical time for fixing the cyclodialysis cleft was 2.68 ± 0.54 min/30° cleft. A significant improvement in LogMAR BCVA was observed from 2.94 ± 0.93 preoperatively to 1.81 ± 1.11 at the 6-month follow-up. IOP was elevated from 10.90 ± 6.18 mmHg preoperatively to 14.45 ± 2.35 mmHg at the 6-month follow-up. The modified single-armed suture technique was proved to be an effective method to fix the traumatic cyclodialysis cleft, which could facilitate the use of the procedure to repair chorioretinal disorders. It improved the BCVA and maintained the IOP with less postoperative complications.
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Affiliation(s)
- Xueyong Zhang
- Eye Center of Xiangya Hospital, Central South University, Changsha 410008, China
- Hunan Key Laboratory of Ophthalmology, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Nan Wang
- Eye Center of Xiangya Hospital, Central South University, Changsha 410008, China
- Hunan Key Laboratory of Ophthalmology, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Guoli Zheng
- Eye Center of Xiangya Hospital, Central South University, Changsha 410008, China
- Hunan Key Laboratory of Ophthalmology, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Die Liu
- Eye Center of Xiangya Hospital, Central South University, Changsha 410008, China
- Hunan Key Laboratory of Ophthalmology, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Quyan Zhang
- Eye Center of Xiangya Hospital, Central South University, Changsha 410008, China
- Hunan Key Laboratory of Ophthalmology, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Wenbo Lei
- Eye Center of Xiangya Hospital, Central South University, Changsha 410008, China
- Hunan Key Laboratory of Ophthalmology, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Xiaobo Xia
- Eye Center of Xiangya Hospital, Central South University, Changsha 410008, China
- Hunan Key Laboratory of Ophthalmology, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Siqi Xiong
- Eye Center of Xiangya Hospital, Central South University, Changsha 410008, China
- Hunan Key Laboratory of Ophthalmology, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
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14
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Wang D, Wang F, Zhang H, Chen P, Yang M. Circadian clock protein Bmal1 accelerates acute myeloid leukemia by inhibiting ferroptosis through the EBF3/ALOX15 axis. Cancer Sci 2023. [PMID: 37271497 PMCID: PMC10394146 DOI: 10.1111/cas.15875] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 05/11/2023] [Accepted: 05/17/2023] [Indexed: 06/06/2023] Open
Abstract
Acute myeloid leukemia (AML) is a major leukemia with high mortality. Ferroptosis is an important regulator of cancers. However, the role of ferroptosis and its regulatory mechanisms in AML remain largely unknown. In this study, we reported elevated brain and muscle ARNT-Like protein-1 (Bmal1) expression in AML patients and cell lines, and its upregulation indicated the poor survival of patients. The correlation analysis showed that Bmal1 expression was closely correlated with cytogenetics and the French-American-British subtypes, but was not correlated with age, gender and white blood cells. RSL3 reduced Bmal1 expression in HL-60 and NB4 cells. Malondialdehyde, total iron, Fe2+ , glutathione and lipid peroxidation were examined to evaluate ferroptosis. Overexpression of Bmal1 repressed RSL3-induced ferroptosis in AML cells. Bmal1 recruited Enhancer of zeste homolog 2 (EZH2) to the Early B cell factor 3 (EBF3) promoter and enhanced its methylation, thus suppressing EBF3 expression. Moreover, the knockdown of Bmal1 sensitized AML cells to RSL3-induced ferroptosis, and it was counteracted by EBF3 knockdown. Furthermore, EBF3 bound to the Arachidonate 15-pipoxygenase (ALOX15) promoter to enhance its expression, and overexpression of EBF3 enhanced RSL3-induced ferroptosis dependent on ALOX5. We established a subcutaneous AML xenograft tumor model and reported that knockdown of Bmal1 and overexpression of EBF3 restrained AML growth by promoting ALOX15-mediated ferroptosis in vivo. Collectively, Bmal1 inhibits RSL3-induced ferroptosis by promoting EZH2-mediated EBF3 methylation and suppressing the expression of EBF3 and ALOX15, thus accelerating AML.
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Affiliation(s)
- Dan Wang
- Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Center of Pediatric Cancer, Changsha, China
| | - Fenglin Wang
- Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Center of Pediatric Cancer, Changsha, China
| | - Haixia Zhang
- Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Center of Pediatric Cancer, Changsha, China
| | - Pan Chen
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Minghua Yang
- Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Center of Pediatric Cancer, Changsha, China
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15
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Li Z, Ye Y, Zhang G, Guan F, Luo J, Wang P, Zhao J, Zhao L. Research on Determining Elastic-Plastic Constitutive Parameters of Materials from Load Depth Curves Based on Nanoindentation Technology. Micromachines (Basel) 2023; 14:mi14051051. [PMID: 37241674 DOI: 10.3390/mi14051051] [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: 04/18/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023]
Abstract
It is of great significance for structural design and engineering evaluation to obtain the elastic-plastic parameters of materials. The inverse estimation of elastic-plastic parameters of materials based on nanoindentation technology has been applied in many pieces of research, but it has proved to be difficult to determine the elastic-plastic properties of materials by only using a single indentation curve. A new optimal inversion strategy based on a spherical indentation curve was proposed to obtain the elastoplastic parameters (the Young's modulus E, yield strength σy, and hardening exponent n) of materials in this study. A high-precision finite element model of indentation with a spherical indenter (radius R = 20 µm) was established, and the relationship between the three parameters and indentation response was analyzed using the design of experiment (DOE) method. The well-posed problem of inverse estimation under different maximum indentation depths (hmax1 = 0.06 R, hmax2 = 0.1 R, hmax3 = 0.2 R, hmax4 = 0.3 R) was explored based on numerical simulations. The results show that the unique solution with high accuracy can be obtained under different maximum press-in depths (the minimum error was within 0.2% and the maximum error was up to 1.5%). Next, the load-depth curves of Q355 were obtained by a cyclic loading nanoindentation experiment, and the elastic-plastic parameters of Q355 were determined by the proposed inverse-estimation strategy based on the average indentation load-depth curve. The results showed that the optimized load-depth curve was in good agreement with the experimental curve, and the optimized stress-strain curve was slightly different from the tensile test, and the obtained parameters were basically consistent with the existing research.
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Affiliation(s)
- Zhentao Li
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China
| | - Yun Ye
- Institute of New Materials, Guangdong Academy of Sciences, National Engineering Laboratory of Modern Materials Surface Engineering Technology, Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, Guangzhou 510651, China
| | - Guanjun Zhang
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China
| | - Fengjiao Guan
- Laboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
| | - Junjie Luo
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China
| | - Panfeng Wang
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China
| | - Jiao Zhao
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China
| | - Li Zhao
- Institute of New Materials, Guangdong Academy of Sciences, National Engineering Laboratory of Modern Materials Surface Engineering Technology, Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, Guangzhou 510651, China
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16
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Liu J, Zhang Y, Zeng Q, Zeng H, Liu X, Wu P, Xie H, He L, Long Z, Lu X, Xiao M, Zhu Y, Bo H, Cao K. Delivery of RIPK4 small interfering RNA for bladder cancer therapy using natural halloysite nanotubes. Sci Adv 2019; 5:eaaw6499. [PMID: 31579820 PMCID: PMC6760933 DOI: 10.1126/sciadv.aaw6499] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 09/03/2019] [Indexed: 05/28/2023]
Abstract
RNA interference (RNAi) technology can specifically silence the expression of a target gene and has emerged as a promising therapeutic method to treat cancer. In the present study, we showed that natural halloysite nanotube (HNT)-assisted delivery of an active small interfering RNA (siRNA) targeting receptor-interacting protein kinase 4 ( RIPK4 ) efficiently silenced its expression to treat bladder cancer. The HNTs/siRNA complex increased the serum stability of the siRNA, increased its circulation lifetime in blood, and promoted the cellular uptake and tumor accumulation of the siRNA. The siRNA markedly down-regulated RIPK4 expression in bladder cancer cells and bladder tumors, thus inhibiting tumorigenesis and progression in three bladder tumor models (a subcutaneous model, an in situ bladder tumor model, and a lung metastasis model), with no adverse effects. Thus, we revealed a simple but effective method to inhibit bladder cancer using RIPK4 silencing, indicating a promising therapeutic method for bladder cancer.
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Affiliation(s)
- Jianye Liu
- Department of Urology, The Third Xiangya Hospital of Central South University, Changsha 410013, China
- Institute of Prostate Disease of Central South University, Changsha 410013, China
| | - Yi Zhang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Qinghai Zeng
- Department of Dermatology, The Third Xiangya Hospital of Central South University, Changsha 410013, China
| | - Hongliang Zeng
- Hunan Key Laboratory of Pharmacodynamics and Safety Evaluation of New Drugs, Changsha 410331, China
| | - Xiaoming Liu
- Department of Digestive, The Third Xiangya Hospital of Central South University, Changsha 410013, China
| | - Pei Wu
- Department of Operation Center, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Hongyi Xie
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Leye He
- Department of Urology, The Third Xiangya Hospital of Central South University, Changsha 410013, China
- Institute of Prostate Disease of Central South University, Changsha 410013, China
| | - Zhi Long
- Department of Urology, The Third Xiangya Hospital of Central South University, Changsha 410013, China
- Institute of Prostate Disease of Central South University, Changsha 410013, China
| | - Xiaoyong Lu
- Department of Urology, Hunan Aerospace Hospital, Changsha 410205, China
| | - Mengqing Xiao
- Department of Onology, The Third Xiangya Hospital of Central South University, Changsha 410013, China
| | - Yuxing Zhu
- Department of Onology, The Third Xiangya Hospital of Central South University, Changsha 410013, China
| | - Hao Bo
- Institute of Reproductive and Stem Cell Engineering, Central South University, Changsha 410008, China
| | - Ke Cao
- Department of Onology, The Third Xiangya Hospital of Central South University, Changsha 410013, China
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17
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Lin XX, Lian GH, Peng SF, Zhao Q, Xu Y, Ou-Yang DS, Zhang W, Chen Y. Reversing Epigenetic Alterations Caused by Alcohol: A Promising Therapeutic Direction for Alcoholic Liver Disease. Alcohol Clin Exp Res 2018; 42:1863-1873. [PMID: 30080257 DOI: 10.1111/acer.13863] [Citation(s) in RCA: 12] [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: 01/24/2018] [Accepted: 07/28/2018] [Indexed: 12/19/2022]
Abstract
Alcoholic liver disease (ALD), a liver function disorder caused by excessive alcohol intake, is a serious threat to global public health and social development. Toxic metabolites and reactive oxygen species produced during the metabolism of alcohol can alter the epigenetic state including DNA methylation, histone modifications, and expression of microRNAs. Epigenetic alterations can conversely involve various signaling pathways, which could contribute to the initiation and progression of ALD. To elucidate the relationship between epigenetic alterations and alcohol damage not only reinforces our understanding on pathogenesis of ALD, but also provides novel targets for clinical diagnosis, treatment, and drug research of ALD. In this review, we have summarized the research progress of epigenetic alterations and related mechanisms caused by alcohol in the pathogenesis of ALD. Considering the invertibility of epigenetic alterations, treatment of ALD through epigenetic modification with common less harmful compounds is also related.
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Affiliation(s)
- Xiu-Xian Lin
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China
| | - Guang-Hui Lian
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shi-Fang Peng
- Department of Hepatology and Infectious Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qing Zhao
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China
| | - Ying Xu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China
| | - Dong-Sheng Ou-Yang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China
| | - Wei Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China
| | - Yao Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China
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