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Lin L, Luo Q, Li L, Zheng Y, Wei H, Liao J, Liu Y, Liu M, Wang Z, Lin W, Zou X, Zhu H, Lin M. Recombinase polymerase amplification combined with Pyrococcus furiosus Argonaute for fast Salmonella spp. testing in food safety. Int J Food Microbiol 2024; 417:110697. [PMID: 38642433 DOI: 10.1016/j.ijfoodmicro.2024.110697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 02/24/2024] [Accepted: 04/10/2024] [Indexed: 04/22/2024]
Abstract
Foodborne illness caused by Salmonella spp. is one of the most prevalent public health problems globally, which have brought immeasurable economic burden and social impact to countries around the world. Neither current nucleic acid amplification detection method nor standard culture method (2-3 days) are suitable for field detection in areas with a heavy burden of Salmonella spp. Here, we developed a highly sensitive and accurate assay for Salmonella spp. detection in less than 40 min. Specifically, the invA gene of Salmonella spp. was amplified by recombinase polymerase amplification (RPA), followed by Pyrococcus furiosus Argonaute (PfAgo)-based target sequence cleavage, which could be observed by a fluorescence reader or the naked eye. The assay offered the lowest detectable concentration of 1.05 × 101 colony forming units/mL (CFU/mL). This assay had strong specificity and high sensitivity for the detection of Salmonella spp. in field samples, which indicated the feasibility of this assay.
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Affiliation(s)
- Liyun Lin
- School of Biotechnology and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong Province, China
| | - Qiulan Luo
- School of Biotechnology and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong Province, China
| | - Liejun Li
- Guangdong Hybribio Biotech Co., Ltd., Chaozhou, Guangdong, China
| | - Yuzhong Zheng
- School of Biotechnology and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong Province, China
| | - Huagui Wei
- School of Biotechnology and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong Province, China
| | - Jiayu Liao
- School of Biotechnology and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong Province, China
| | - Yaqun Liu
- School of Biotechnology and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong Province, China
| | - Mouquan Liu
- School of Biotechnology and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong Province, China
| | - Zhonghe Wang
- School of Biotechnology and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong Province, China
| | - Wanling Lin
- School of Biotechnology and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong Province, China
| | - Xianghui Zou
- School of Biotechnology and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong Province, China
| | - Hui Zhu
- School of Biotechnology and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong Province, China
| | - Min Lin
- School of Biotechnology and Food Engineering, Hanshan Normal University, Chaozhou, Guangdong Province, China.
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Xiao M, Lin M, Chen Z, Wang Y, Lu Y. Clinical efficacy observation of calcipotriol combined with AYJ sodium alginate repair dressing in the treatment of psoriasis vulgaris and its effect on patients' neurological function. Int J Neurosci 2024:1-7. [PMID: 38708953 DOI: 10.1080/00207454.2024.2352781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 05/03/2024] [Indexed: 05/07/2024]
Abstract
OBJECTIVE To observe the clinical efficacy of calcipotriol combined with AYJ(An Yi Jia) sodium alginate repair dressing in the treatment of psoriasis vulgaris (PV) and its effect on patients' neurological function. METHODS A retrospective analysis was conducted on the clinical data of 103 patients with PV admitted to our hospital from January 2022 to January 2024. All patients met the inclusion and exclusion criteria. According to the treatment interventions received by the patients, they were divided into control group (n = 51, receiving calcipotriol monotherapy) and observation group (n = 52, receiving calcipotriol combined with AYJ sodium alginate repair dressing). The clinical treatment effects, severity of the disease (PSSI score), levels of T lymphocyte subsets (CD4+, CD8+), serum nerve growth factor (NGF), inflammatory factors [interferon-gamma (IFN-γ), interleukin-8 (IL-8), tumor necrosis factor-alpha (TNF-α)], and adverse reactions were compared between the two groups. RESULTS ① Clinical treatment effects: The total effective rate in the observation group was higher than that in the control group (p < 0.05). ② Severity of the disease: The PASI scores of both groups gradually decreased with prolonged treatment time, and the observation group showed a greater magnitude of change (p < 0.05). ③ T lymphocyte subset cells and serum nerve growth factor: The levels of CD4+ were increased after treatment in both groups, while CD8+ and NGF levels were decreased compared to before treatment, with a greater magnitude of change in the observation group (p < 0.05). ④ Inflammatory factors: The levels of IFN-γ, IL-8, and TNF-α were decreased after treatment in both groups, with a greater magnitude of change in the observation group (p < 0.05). ⑤ Adverse reactions: There was no significant difference in the incidence of adverse reactions between the two groups (p > 0.05). CONCLUSION Calcipotriol combined with AYJ sodium alginate repair dressing has ideal therapeutic effects in the treatment of PV. Compared with calcipotriol alone, the combined application of AYJ sodium alginate repair dressing can further improve patient efficacy, improve immune and neurological function, alleviate patient inflammatory responses, and does not increase the risk of adverse reactions in patients.
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Affiliation(s)
- Min Xiao
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Min Lin
- Dermatology Department, The Second People's Hospital of Chengdu, Chengdu, China
| | - Zhonghua Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Yan Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Yonghong Lu
- Dermatology Department, The Second People's Hospital of Chengdu, Chengdu, China
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Cui M, Liu S, Xie X, Yang J, Wang T, Jiao Y, Lin M, Sui K. Self-Assembly Reinforced Alginate Fibers for Enhanced Strength, Toughness, and Bone Regeneration. Biomacromolecules 2024. [PMID: 38741285 DOI: 10.1021/acs.biomac.4c00091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Material reinforcement commonly exists in a contradiction between strength and toughness enhancement. Herein, a reinforced strategy through self-assembly is proposed for alginate fibers. Sodium alginate (SA) microstructures with regulated secondary structures are assembled in acidic and ethanol as reinforcing units for alginate fibers. Acidity increases the flexibility of the helix and contributes to enhanced extendibility. Ethanol is responsible for formation of a stiff β-sheet, which enhances the modulus and strength. The structurally engineered SA assembly exhibits robust mechanical compatibility, and thus reinforced alginate fibers possess an improved tensile strength of 2.1 times, a prolonged elongation of 1.5 times, and an enhanced toughness of 3.0 times compared with SA fibers without reinforcement. The reinforcement through self-assembly provides an understanding of strengthening and toughening mechanism based on secondary structures. Due to a similar modulus with bones, reinforced alginate fibers exhibit good efficacy in accelerating bone regeneration in vivo.
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Affiliation(s)
- Min Cui
- State Key Laboratory of Bio-Fibers and Eco-textiles, College of Materials Science and Engineering, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, P. R. China
| | - Shuwei Liu
- Joint Laboratory of Opto-Functional Theranostics in Medicine and Chemistry, The First Hospital of Jilin University, Changchun 130012, P. R. China
| | - Xuelai Xie
- State Key Laboratory of Bio-Fibers and Eco-textiles, College of Materials Science and Engineering, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, P. R. China
| | - Jinhong Yang
- State Key Laboratory of Bio-Fibers and Eco-textiles, College of Materials Science and Engineering, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, P. R. China
| | - Tianyuan Wang
- State Key Laboratory of Bio-Fibers and Eco-textiles, College of Materials Science and Engineering, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, P. R. China
| | - Yuyang Jiao
- State Key Laboratory of Bio-Fibers and Eco-textiles, College of Materials Science and Engineering, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, P. R. China
| | - Min Lin
- State Key Laboratory of Bio-Fibers and Eco-textiles, College of Materials Science and Engineering, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, P. R. China
| | - Kunyan Sui
- State Key Laboratory of Bio-Fibers and Eco-textiles, College of Materials Science and Engineering, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, P. R. China
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Chen L, Wei C, Liu Y, Liao M, Wang J, Chen J, Yang P, Li L, Xie C, Lin M, Zhang Z, Zheng Y. Innovative RPA-PfAgo system for rapid MTHFR C677T polymorphism identification. Gene 2024:148544. [PMID: 38734187 DOI: 10.1016/j.gene.2024.148544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 04/10/2024] [Accepted: 05/08/2024] [Indexed: 05/13/2024]
Abstract
This study introduces an efficient RPA-PfAgo detection system for the MTHFR C677T polymorphism, proposing a potential strategy to simplify the genotyping process. By optimizing recombinase polymerase amplification (RPA) with Pyrococcus furiosus Argonaute (PfAgo) nucleases, we achieved DNA amplification at a constant temperature. The assay was fine-tuned through meticulous primer and guide DNA selection, with optimal conditions established at 2.0 µL of MgAc, a reaction temperature of 42 °C, and a 10-minute reaction time for RPA. Further optimization of the PfAgo cleavage assay revealed the ideal concentrations of MnCl2, guide DNA, molecular beacon probes, the PfAgo enzyme, and the RPA product to maximize sensitivity and specificity. Clinical validation of 20 samples showed 100 % concordance with Sanger sequencing, confirming the method's precision. The RPA-PfAgo system is a promising tool for on-site genotyping, with broad applications in personalized medicine and disease prevention.
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Affiliation(s)
- Lianghui Chen
- Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China; Industrial College of Biomedicine and Health Industry, Youjiang Medical University for Nationalities, Baise 533000, China
| | - Cheng Wei
- Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China; Industrial College of Biomedicine and Health Industry, Youjiang Medical University for Nationalities, Baise 533000, China
| | - Yaqun Liu
- School of Life Sciences and Food Technology, Hanshan Normal University, Chaozhou 521041, China; Guangdong Hybribio Biotech Co., Ltd., Chaozhou 521041, China; Guangdong Taiantang Pharmaceutical Co., Ltd., Shantou 515000, China.
| | - Meihua Liao
- Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China; Industrial College of Biomedicine and Health Industry, Youjiang Medical University for Nationalities, Baise 533000, China
| | - Jialin Wang
- School of Life Sciences and Food Technology, Hanshan Normal University, Chaozhou 521041, China
| | - Jiaqi Chen
- School of Life Sciences and Food Technology, Hanshan Normal University, Chaozhou 521041, China
| | - Peikui Yang
- School of Life Sciences and Food Technology, Hanshan Normal University, Chaozhou 521041, China
| | - Liejun Li
- Guangdong Hybribio Biotech Co., Ltd., Chaozhou 521041, China
| | - Chengsong Xie
- Guangdong Taiantang Pharmaceutical Co., Ltd., Shantou 515000, China
| | - Min Lin
- Industrial College of Biomedicine and Health Industry, Youjiang Medical University for Nationalities, Baise 533000, China; School of Life Sciences and Food Technology, Hanshan Normal University, Chaozhou 521041, China
| | - Zhenxia Zhang
- School of Life Sciences and Food Technology, Hanshan Normal University, Chaozhou 521041, China
| | - Yuzhong Zheng
- Industrial College of Biomedicine and Health Industry, Youjiang Medical University for Nationalities, Baise 533000, China; School of Life Sciences and Food Technology, Hanshan Normal University, Chaozhou 521041, China.
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Lin X, Fan L, Lin M. A superficial esophageal cancer with a Rokitansky diverticulum treated by endoscopic submucosal dissection with dental floss clip traction: Letter to the editor. Clin Res Hepatol Gastroenterol 2024; 48:102368. [PMID: 38723945 DOI: 10.1016/j.clinre.2024.102368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 05/01/2024] [Indexed: 05/21/2024]
Affiliation(s)
- Xueyi Lin
- Department of Gastroenterology, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, PR China
| | - Li Fan
- Department of Gastroenterology, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, PR China
| | - Min Lin
- Department of Gastroenterology, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, PR China.
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Lin X, Lin M. The confusing pelvic mass: A case of small intestine lesion diagnosed by endoscopic ultrasound-guided fine-needle biopsy through the sigmoid colon. J Clin Ultrasound 2024. [PMID: 38713103 DOI: 10.1002/jcu.23705] [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: 03/19/2024] [Revised: 04/13/2024] [Accepted: 04/17/2024] [Indexed: 05/08/2024]
Abstract
Here we report a successful case of a small bowel lesion obtained through EUS-FNB via the sigmoid colon after routine small bowel endoscopy failed due to bowel volvulus. This case highlights the feasibility of EUS-FNB in small intestine lesion acquisition through sigmoid colon.
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Affiliation(s)
- Xueyi Lin
- Department of Gastroenterology, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Min Lin
- Department of Gastroenterology, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
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Tang YH, Huang ZN, Chen QY, Li P, Xie JW, Wang JB, Lin JX, Lu J, Cao LL, Lin M, Tu RH, Zheng CH, Huang CM. [Prognostic significance of textbook outcome in advanced gastric patients who underwent neoadjuvant chemotherapy followed by surgical resection]. Zhonghua Wai Ke Za Zhi 2024; 62:379-386. [PMID: 38548605 DOI: 10.3760/cma.j.cn112139-20231209-00261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/09/2024]
Abstract
Objective: To investigate the risk factors and prognostic value of the textbook outcome (TO) in patients with advanced gastric cancer (AGC) who underwent neoadjuvant chemotherapy followed by surgical resection. Methods: This is a retrospective cohort study. A total of 253 patients with AGC who underwent neoadjuvant chemotherapy combined with gastrectomy and D2 lymphadenectomy in the Department of Gastric Surgery, Fujian Medical University Union Hospital from January 2010 to December 2019 were retrospectively included. There were 195 males and 58 females, aged (60.3±10.0) years (range: 27 to 75 years). The patients were then divided into the TO group (n=168) and the non-TO group (n=85). Multivariate Logistic regression was used to analyze the independent predictors of TO. Univariate and multivariate Cox analysis were used to analyze independent prognosis factors for overall survival (OS) and disease-free survival (DFS). Propensity score matching was performed to balance the TO and non-TO groups, and the Kaplan-Meier method was used to calculate survival rates and draw survival curves. Results: Among the 253 patients, 168 patients (66.4%) achieved TO. The Eastern Cooperative Oncology Group score (OR=0.488, 95%CI: 0.278 to 0.856, P=0.012) and ypN stage (OR=0.626, 95%CI:0.488 to 0.805, P<0.01) were independently predictive of TO. Multivariate analysis revealed that TO was an independent risk factor for both OS (HR=0.662, 95%CI: 0.457 to 0.959,P=0.029) and DFS (HR=0.687, 95%CI: 0.483 to 0.976, P=0.036). After matching, the 5-year OS rate (42.2% vs. 27.8%) and the 5-year DFS rate (37.5% vs. 27.8%) were significantly higher in the TO group than in the non-TO group (both P<0.05). Furthermore, patients in the non-TO group benefited significantly from postoperative chemotherapy (both P<0.05), but those in the TO group did not (both P>0.05). Conclusion: TO is an independent prognosis factor in patients undergoing neoadjuvant chemotherapy and surgery for AGC and is associated with postoperative chemotherapy benefits.
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Affiliation(s)
- Y H Tang
- Department of Gastric Surgery, Department of General Surgery, Fujian Province Minimally Invasive Medical Center, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Z N Huang
- Department of Gastric Surgery, Department of General Surgery, Fujian Province Minimally Invasive Medical Center, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Q Y Chen
- Department of Gastric Surgery, Department of General Surgery, Fujian Province Minimally Invasive Medical Center, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - P Li
- Department of Gastric Surgery, Department of General Surgery, Fujian Province Minimally Invasive Medical Center, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - J W Xie
- Department of Gastric Surgery, Department of General Surgery, Fujian Province Minimally Invasive Medical Center, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - J B Wang
- Department of Gastric Surgery, Department of General Surgery, Fujian Province Minimally Invasive Medical Center, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - J X Lin
- Department of Gastric Surgery, Department of General Surgery, Fujian Province Minimally Invasive Medical Center, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - J Lu
- Department of Gastric Surgery, Department of General Surgery, Fujian Province Minimally Invasive Medical Center, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - L L Cao
- Department of Gastric Surgery, Department of General Surgery, Fujian Province Minimally Invasive Medical Center, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - M Lin
- Department of Gastric Surgery, Department of General Surgery, Fujian Province Minimally Invasive Medical Center, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - R H Tu
- Department of Gastric Surgery, Department of General Surgery, Fujian Province Minimally Invasive Medical Center, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - C H Zheng
- Department of Gastric Surgery, Department of General Surgery, Fujian Province Minimally Invasive Medical Center, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - C M Huang
- Department of Gastric Surgery, Department of General Surgery, Fujian Province Minimally Invasive Medical Center, Fujian Medical University Union Hospital, Fuzhou 350001, China
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Lin M, Cui Y, Shi L, Li Z, Liu S, Liu Z, Weng W, Ren Z. Characteristics of hairtail surimi gels treated with myofibrillar protein-stabilized Pickering emulsions. J Sci Food Agric 2024; 104:4251-4259. [PMID: 38311866 DOI: 10.1002/jsfa.13308] [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: 12/05/2023] [Revised: 12/26/2023] [Accepted: 01/15/2024] [Indexed: 02/06/2024]
Abstract
BACKGROUND Hairtail (Trichiurus haumela) surimi exhibits poor gelation properties and a dark gray appearance, which hinder its utilization in high-quality surimi gel products. The effect of Pickering emulsions stabilized by myofibrillar proteins (MPE) on the gel properties of hairtail surimi has been unclear. In particular, the impact of MPE under NaCl and KCl treatments on the quality of hairtail surimi gels requires further elucidation. RESULTS Pickering emulsions stabilized by myofibrillar proteins and treated with NaCl or KCl (Na-MPE, K-MPE) were added to hairtail surimi in amounts of 10-70 g kg-1. The addition of 50 g kg-1 Na-MPE and K-MPE improved the gel strength, textural properties, whiteness, and water-holding capacity (WHC) of hairtail surimi. The relative content of β-turn and β-sheet in the surimi gels increased and the relative content of random coils and α-helix decreased with the addition of oil. The addition of Na-MPE and K-MPE did not affect the secondary structure of surimi gels but stimulated the gelation of hairtail surimi gels. Hairtail surimi containing K-MPE demonstrated similar performance in terms of hardness, microstructure, and WHC compared with the addition of Na-MPE. CONCLUSION The quality of hairtail surimi gels can be improved by the addition of Na-MPE or K-MPE. The K-MPE proved to be an effective option for enhancing the properties of hairtail surimi gels at 50 g kg-1 to replace Na-MPE. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Min Lin
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, China
| | - Yaqing Cui
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, China
| | - Linfan Shi
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, China
- Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Beijing, China
| | - Zhanming Li
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Shuji Liu
- Fisheries Research Institute of Fujian // Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province // Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resource, Xiamen, China
| | - Zhiyu Liu
- Fisheries Research Institute of Fujian // Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province // Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resource, Xiamen, China
| | - Wuyin Weng
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, China
| | - Zhongyang Ren
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, China
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Li J, Lin M, Xie Z, Chen L, Qi J, Yu B. Target Cell Extraction and Spectrum-Effect Relationship Coupled with BP Neural Network Classification for Screening Potential Bioactive Components in Ginseng Extract with a Protective Effect against Myocardial Damage. Molecules 2024; 29:2028. [PMID: 38731522 PMCID: PMC11085743 DOI: 10.3390/molecules29092028] [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: 03/16/2024] [Revised: 04/10/2024] [Accepted: 04/19/2024] [Indexed: 05/13/2024] Open
Abstract
Cardiovascular disease has become a common ailment that endangers human health, having garnered widespread attention due to its high prevalence, recurrence rate, and sudden death risk. Ginseng possesses functions such as invigorating vital energy, enhancing vein recovery, promoting body fluid and blood nourishment, calming the nerves, and improving cognitive function. It is widely utilized in the treatment of various heart conditions, including palpitations, chest pain, heart failure, and other ailments. Although numerous research reports have investigated the cardiovascular activity of single ginsenoside, there remains a lack of systematic research on the specific components group that predominantly contribute to cardiovascular efficacy in ginseng medicinal materials. In this research, the spectrum-effect relationship, target cell extraction, and BP neural network classification were used to establish a rapid screening system for potential active substances. The results show that red ginseng extract (RGE) can improve the decrease in cell viability and ATP content and inhibit the increase in ROS production and LDH release in OGD-induced H9c2 cells. A total of 70 ginsenosides were identified in RGE using HPLC-Q-TOF-MS/MS analysis. Chromatographic fingerprints were established for 12 batches of RGE by high-performance liquid chromatography (HPLC). A total of 36 common ingredients were found in 12 batches of RGE. The cell viability, ATP, ROS, and LDH of 12 batches RGE were tested to establish gray relationship analysis (GRA) and partial least squares discrimination analysis (PLS-DA). BP neural network classification and target cell extraction were used to narrow down the scope of Spectral efficiency analysis and screen the potential active components. According to the cell experiments, RGE can improve the cell viability and ATP content and reduce the oxidative damage. Then, seven active ingredients, namely, Ginsenoside Rg1, Rg2, Rg3, Rb1, Rd, Re, and Ro, were screened out, and their cardiovascular activity was confirmed in the OGD model. The seven ginsenosides were the main active substances of red ginseng in treating myocardial injury. This study offers a reference for quality control in red ginseng and preparations containing red ginseng for the management of cardiovascular diseases. It also provides ideas for screening active ingredients of the same type of multi-pharmacologically active traditional Chinese medicines.
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Affiliation(s)
- Junyi Li
- Research Center for Traceability and Standardization of TCMs, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China; (J.L.); (M.L.); (Z.X.); (L.C.)
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Min Lin
- Research Center for Traceability and Standardization of TCMs, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China; (J.L.); (M.L.); (Z.X.); (L.C.)
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Zexin Xie
- Research Center for Traceability and Standardization of TCMs, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China; (J.L.); (M.L.); (Z.X.); (L.C.)
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Liwenyu Chen
- Research Center for Traceability and Standardization of TCMs, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China; (J.L.); (M.L.); (Z.X.); (L.C.)
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Jin Qi
- Research Center for Traceability and Standardization of TCMs, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China; (J.L.); (M.L.); (Z.X.); (L.C.)
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Boyang Yu
- Research Center for Traceability and Standardization of TCMs, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China; (J.L.); (M.L.); (Z.X.); (L.C.)
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
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Liu S, Wang B, Chen Z, Mo H, Lin M, Huang X. Meta-analysis of the Efficacy of Photodynamic Therapy (PDT) in the Treatment of Peri-implantitis. Altern Ther Health Med 2024:AT10043. [PMID: 38687855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Objective This meta-analysis aims to evaluate the comparative clinical efficacy of photodynamic therapy (PDT) versus other non-surgical treatments in managing peri-implantitis. Methods Computer searches were conducted in databases including PubMed, The Cochrane Library, Embase, China National Knowledge Infrastructure (CNKI), VIP, and Wanfang for randomized controlled trials (RCTs) on the clinical efficacy of Photodynamic Therapy (PDT) compared to other non-surgical methods in the treatment of peri-implantitis. The search period spanned from May 2000 to May 2023. Based on inclusion and exclusion criteria, literature was screened, data extracted, and the quality of the studies was assessed. Included studies were publicly published randomized controlled experiments focusing on the combination of photodynamic therapy and non-surgical methods compared to non-surgical methods alone in the treatment of peri-implantitis. Articles with insufficient or unclear definitions of peri-implantitis cases were excluded from the selected studies. Statistical analysis was performed using RevMan 5.3 software. Results Nine RCTs were included for Meta-analysis. Meta-analysis showed that patients in the PDT trial group had reduced peri-implant probing depth (PD) during the follow-up period compared with the control group [WMD=-0.40, 95%CI(-0.62,-0.17), P = .0005], and bleeding on probing (BOP) was reduced [WMD=-9.20, 95%CI(-13.69,-4.71), P < .0001] more significantly, and the difference between the two groups was statistically significant (P < .05); while for Modified plaque index (mPI) decreased [MD=-0.07, 95%CI (-0.16, 0.01), P = .09], clinical attachment loss (CAL) gained [WMD=-0.66, 95%CI:(-1.46, 0.14), P = .11]. Plaque index (PI%) decreased [WMD=-1.66, 95%CI:(-3.43, 0.11), P = .07] insignificantly, and the difference between the two groups was not statistically significant (P > .05).Photodynamic Therapy (PDT) has been significantly effective in reducing periodontal pocket depth and gingival bleeding in the treatment of periodontal diseases. However, its efficacy in improving plaque control and promoting tooth attachment is limited, which may be attributed to its primary antibacterial action rather than promoting tissue repair. Conclusion Compared to other non-surgical treatments, PDT treatment has significant advantages in reducing peri-implant probing depth and bleeding in patients with peri-implantitis. These results suggest that PDT may be a more effective non-surgical option for reducing probing depth and bleeding in patients with peri-implantitis. Of course, future studies with larger sample sizes and longer follow-up periods are needed to confirm these findings.
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Wang Z, Fan F, Li Z, Ye F, Wang Q, Gao R, Qiu J, Lv Y, Lin M, Xu W, Luo C, Yu X. Structural insights into the functional mechanism of the ubiquitin ligase E6AP. Nat Commun 2024; 15:3531. [PMID: 38670961 PMCID: PMC11053172 DOI: 10.1038/s41467-024-47586-w] [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: 08/22/2023] [Accepted: 04/04/2024] [Indexed: 04/28/2024] Open
Abstract
E6AP dysfunction is associated with Angelman syndrome and Autism spectrum disorder. Additionally, the host E6AP is hijacked by the high-risk HPV E6 to aberrantly ubiquitinate the tumor suppressor p53, which is linked with development of multiple types of cancer, including most cervical cancers. Here we show that E6AP and the E6AP/E6 complex exist, respectively, as a monomer and a dimer of the E6AP/E6 protomer. The short α1-helix of E6AP transforms into a longer helical structure when in complex with E6. The extended α1-helices of the dimer intersect symmetrically and contribute to the dimerization. The two protomers sway around the crossed region of the two α1-helices to promote the attachment and detachment of substrates to the catalytic C-lobe of E6AP, thus facilitating ubiquitin transfer. These findings, complemented by mutagenesis analysis, suggest that the α1-helix, through conformational transformations, controls the transition between the inactive monomer and the active dimer of E6AP.
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Affiliation(s)
- Zhen Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Fengying Fan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhihai Li
- University of Chinese Academy of Sciences, Beijing, 100049, China
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
| | - Fei Ye
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Qingxia Wang
- Cryo-Electron Microscopy Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Rongchao Gao
- Cryo-Electron Microscopy Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Jiaxuan Qiu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yixin Lv
- University of Chinese Academy of Sciences, Beijing, 100049, China
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
| | - Min Lin
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Wenwen Xu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Cheng Luo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China.
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, 528437, China.
- Department of Pharmacy, Guiyang University of Traditional Chinese Medicine, South Dong Qing Road, Huaxi District, Guizhou, 550025, China.
| | - Xuekui Yu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- Cryo-Electron Microscopy Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
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Liu Z, Lin M, Liu C, Chen X, Chen Q, Li X, Wu X, Wang Y, Wang L, Yang F, Luo C, Jin J, Ye F. Development of (2-(Benzyloxy)phenyl)methanamine Derivatives as Potent and Selective Inhibitors of CARM1 for the Treatment of Melanoma. J Med Chem 2024; 67:6313-6326. [PMID: 38574345 DOI: 10.1021/acs.jmedchem.3c02265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Coactivator-associated arginine methyltransferase 1 (CARM1), an important member of type I protein arginine methyltransferases (PRMTs), has emerged as a promising therapeutic target for various cancer types. In our previous study, we have identified a series of type I PRMT inhibitors, among which ZL-28-6 (6) exhibited increased activity against CARM1 while displaying decreased potency against other type I PRMTs. In this work, we conducted chemical modifications on compound 6, resulting in a series of (2-(benzyloxy)phenyl)methanamine derivatives as potent inhibitors of CARM1. Among them, compound 17e displayed remarkable potency and selectivity for CARM1 (IC50 = 2 ± 1 nM), along with notable antiproliferative effects against melanoma cell lines. Cellular thermal shift assay and western blot experiments confirmed that compound 6 effectively targets CARM1 within cells. Furthermore, compound 17e displayed good antitumor efficacy in a melanoma xenograft model, indicating that this compound warrants further investigation as a potential anticancer agent.
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Affiliation(s)
- Zhihao Liu
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Min Lin
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Chenyu Liu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
| | - Xin Chen
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Qian Chen
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xinyu Li
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310000, China
| | - Xiaoyan Wu
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310000, China
| | - Yahui Wang
- Department of Anesthesiology, the First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu City 233000, China
| | - Lei Wang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Fan Yang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
| | - Cheng Luo
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310000, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Jia Jin
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Fei Ye
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
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Wang Y, Han Y, Jin L, Ji L, Liu Y, Lin M, Zhou S, Yang R. A novel prognostic signature based on cancer stemness and metabolism-related genes for cervical squamous cell carcinoma and endocervical adenocarcinoma. Aging (Albany NY) 2024; 16:7293-7310. [PMID: 38656879 PMCID: PMC11087133 DOI: 10.18632/aging.205757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 03/28/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND CESC is the second most commonly diagnosed gynecological malignancy. Given the pivotal involvement of metabolism-related genes (MRGs) in the etiology of multiple tumors, our investigation aims to devise a prognostic risk signature rooted in cancer stemness and metabolism. METHODS The stemness index based on mRNA expression (mRNAsi) of samples from the TCGA dataset was computed using the One-class logistic regression (OCLR) algorithm. Furthermore, potential metabolism-related genes related to mRNAsi were identified through weighted gene co-expression network analysis (WGCNA). We construct a stemness-related metabolic gene signature through shrinkage estimation and univariate analysis, thereby calculating the corresponding risk scores. Moreover, we selected corresponding DEGs between groups with high- and low-risk score and conducted routine bioinformatic analyses. Furthermore, we validated the expression of four hub genes at the protein level through immunohistochemistry (IHC) in samples obtained from our patient cohort. RESULTS According to the findings, it was found that six genes-AKR1B10, GNA15, ALDH1B1, PLOD2, LPCAT1, and GPX8- were differentially expressed in both TCGA-CSEC and GEO datasets among 23 differentially expressed metabolism-related genes (DEMRGs). mRNAsi exhibited a notable association with the extent of key oncogene mutation. The results showed that the AUC values for forecasting survival at 1, 3, and 5 years are 0.715, 0.689, and 0.748, individually. We observed a notable association between the risk score and different immune cell populations, along with enrichment in crucial signaling pathways in CESC. Four genes differentially expressed between different risk score groups were validated by IHC to be highly expressed in the CESC samples at the protein level. CONCLUSION The current investigation indicated that a 3-gene signature based on stemness-related metabolic and 4 hub genes with differential expression between high and low-risk score subgroups may serve as valuable prognostic markers and potential therapeutic targets in CESC.
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Affiliation(s)
- Yaokai Wang
- Department of Gynecology and Obstetrics, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518053, Guangdong, China
| | - Yuanyuan Han
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, Yunnan, China
| | - Liangzi Jin
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, Yunnan, China
| | - Lulu Ji
- Department of Gynecology and Obstetrics, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518053, Guangdong, China
| | - Yanxiang Liu
- Yantian District Maternal and Child Health Hospital, Shenzhen, Guangdong, China
| | - Min Lin
- Department of Gynecology and Obstetrics, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518053, Guangdong, China
| | - Sitong Zhou
- Department of Dermatology, The First People’s Hospital of Foshan, Foshan, Guangdong, China
| | - Ronghua Yang
- Department of Burn and Plastic Surgery, Guangzhou First People’s Hospital, South China University of Technology, Guangzhou, Guangdong, China
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Tian J, Mallinger JC, Shi P, Ling D, Deleyrolle LP, Lin M, Khoshbouei H, Sarkisian MR. Aurora kinase A inhibition plus Tumor Treating Fields suppress glioma cell proliferation in a cilium-independent manner. Transl Oncol 2024; 45:101956. [PMID: 38640786 PMCID: PMC11053227 DOI: 10.1016/j.tranon.2024.101956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 03/25/2024] [Accepted: 04/02/2024] [Indexed: 04/21/2024] Open
Abstract
Tumor Treating Fields (TTFields) extend the survival of glioblastoma (GBM) patients by interfering with a broad range of tumor cellular processes. Among these, TTFields disrupt primary cilia stability on GBM cells. Here we asked if concomitant treatment of TTFields with other agents that interfere with GBM ciliogenesis further suppress GBM cell proliferation in vitro. Aurora kinase A (AURKA) promotes both cilia disassembly and GBM growth. Inhibitors of AURKA, such as Alisertib, inhibit cilia disassembly and increase ciliary frequency in various cell types. However, we found that Alisertib treatment significantly reduced GBM cilia frequency in gliomaspheres across multiple patient derived cell lines, and in patient biopsies treated ex vivo. This effect appeared glioma cell-specific as it did not reduce normal neuronal or glial cilia frequencies. Alisertib-mediated depletion of glioma cilia appears specific to AURKA and not AURKB inhibition, and attributable in part to autophagy pathway activation. Treatment of two different GBM patient-derived cell lines with TTFields and Alisertib resulted in a significant reduction in cell proliferation compared to either treatment alone. However, this effect was not cilia-dependent as the combined treatment reduced proliferation in cilia-depleted cell lines lacking, ARL13B, or U87MG cells which are naturally devoid of ARL13B+ cilia. Thus, Alisertib-mediated effects on glioma cilia may be a useful biomarker of drug efficacy within tumor tissue. Considering Alisertib can cross the blood brain barrier and inhibit intracranial growth, our data warrant future studies to explore whether concomitant Alisertib and TTFields exposure prolongs survival of brain tumor-bearing animals in vivo.
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Affiliation(s)
- Jia Tian
- Department of Neuroscience, University of Florida College of Medicine, Gainesville, FL 32610, USA; Preston A. Wells Jr. Center for Brain Tumor Therapy, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Julianne C Mallinger
- Department of Neuroscience, University of Florida College of Medicine, Gainesville, FL 32610, USA; Preston A. Wells Jr. Center for Brain Tumor Therapy, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Ping Shi
- Department of Neuroscience, University of Florida College of Medicine, Gainesville, FL 32610, USA; Preston A. Wells Jr. Center for Brain Tumor Therapy, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Dahao Ling
- Department of Neuroscience, University of Florida College of Medicine, Gainesville, FL 32610, USA; Preston A. Wells Jr. Center for Brain Tumor Therapy, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Loic P Deleyrolle
- Department of Neurosurgery, University of Florida College of Medicine, Gainesville, FL 32610, USA; Preston A. Wells Jr. Center for Brain Tumor Therapy, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Min Lin
- Department of Neuroscience, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Habibeh Khoshbouei
- Department of Neuroscience, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Matthew R Sarkisian
- Department of Neuroscience, University of Florida College of Medicine, Gainesville, FL 32610, USA; Preston A. Wells Jr. Center for Brain Tumor Therapy, University of Florida College of Medicine, Gainesville, FL 32610, USA.
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15
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Lin M, Gong T, Ruan S, Lv X, Chen R, Su X, Cheng B, Ji C. Emerging Insights into Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis Induced by Immune Checkpoint Inhibitor and Tumor-Targeted Therapy. J Inflamm Res 2024; 17:2337-2351. [PMID: 38645875 PMCID: PMC11032673 DOI: 10.2147/jir.s454673] [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] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 04/04/2024] [Indexed: 04/23/2024] Open
Abstract
Objective Anticancer drugs have revolutionized tumor therapy, with cutaneous toxicities such as Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) being common immune-related adverse events. The debate over the efficacy of systemic corticosteroids in treating these conditions persists, while tumor necrosis factor (TNF)-alpha inhibitors show promise. This study aims to evaluate the effectiveness and safety of combination therapy involving the TNF-α inhibitor adalimumab for SJS/TEN induced by anticancer drugs. Methods A literature review of SJS/TEN cases induced by anticancer drugs from 1992 to 2023 was conducted, alongside an analysis of patients admitted to the First Affiliated Hospital of Fujian Medical University during the same period. Clinical characteristics, skin healing time, mortality, and adverse events were evaluated in two treatment groups: SJS/TEN patients treated with targeted anticancer therapies and immunotherapies. Results Among the 27 patients studied (18 with SJS or SJS-TEN overlapping and 9 with TEN), combination therapy with adalimumab significantly reduced mucocutaneous reepithelization time and healing duration compared to corticosteroid monotherapy. Patients receiving adalimumab combined with corticosteroids had lower actual mortality rates than those on corticosteroid monotherapy. The combination therapy also showed a trend towards reducing standardized mortality rates based on the Score of Toxic Epidermal Necrolysis (SCORTEN). Conclusion The findings suggest that adalimumab in combination with corticosteroids provides significant clinical benefits and is safer than corticosteroids alone for treating SJS/TEN induced by targeted anticancer therapies and immunotherapies. This study contributes valuable insights into potential treatment strategies for severe cutaneous adverse reactions to anticancer drugs, highlighting the importance of exploring alternative therapies such as TNF-α inhibitors in managing these conditions effectively.
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Affiliation(s)
- Min Lin
- Department of Dermatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350000, People’s Republic of China
| | - Ting Gong
- Department of Central Laboratory, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350000, People’s Republic of China
| | - Shifan Ruan
- Department of Dermatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350000, People’s Republic of China
| | - Xiaoqing Lv
- Department of Dermatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350000, People’s Republic of China
| | - Rongying Chen
- Department of Dermatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350000, People’s Republic of China
| | - Xinhong Su
- Department of Dermatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350000, People’s Republic of China
| | - Bo Cheng
- Department of Dermatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350000, People’s Republic of China
| | - Chao Ji
- Department of Dermatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350000, People’s Republic of China
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Wu J, Li S, Fan L, Cheng Y, Huang J, Lin M. A prospective randomized trial comparing the pocket-creation method and conventional method of endoscopic submucosal dissection in early gastric cancers and precancerous lesions. J Gastrointest Surg 2024:S1091-255X(24)00417-7. [PMID: 38636721 DOI: 10.1016/j.gassur.2024.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 11/11/2023] [Accepted: 04/13/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND Endoscopic submucosal dissection (ESD) is widely used as a standard treatment regimen for early gastric cancers (EGCs). However, such an approach is time-consuming and has a high risk of perforation and bleeding in some corner-site lesions because of the obscured view and difficulty in submucosal lifting. The newly developed pocket-creation method (PCM) provides a clearer view and better traction of the submucosal layer than conventional ESD (c-ESD). Nevertheless, no prospective randomized study has evaluated the efficacy of the PCM in EGCs and precancerous lesions. METHODS This was a prospective randomized controlled trial. Patients with superficial gastric neoplastic lesions≥20mm were randomly assigned to the PCM-ESD group or c-ESD group. The primary outcome was dissection speed. RESULTS There were 28 patients in the PCM-ESD group and 27 in the c-ESD group. The median dissection speed was significantly higher in the PCM-ESD group than in the c-ESD group (21.5 mm2/min vs. 14.3 mm2/min, P<0.001). Meanwhile, the operation time in the PCM-ESD group was significantly shorter than that in the c-ESD group (30min vs. 40min,P=0.047). In multiple linear regression analysis, the treatment method was independently associated with the resection speed of ESD. CONCLUSIONS PCM-ESD was an effective and safe treatment for EGCs and precancerous lesions.
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Affiliation(s)
- Jiajia Wu
- Department of Gastroenterology, the Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, China
| | - Siyu Li
- Department of Gastroenterology, the Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, China
| | - Li Fan
- Department of Gastroenterology, the Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, China
| | - Yuqing Cheng
- Department of Pathology, the Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, China
| | - Jin Huang
- Department of Gastroenterology, the Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, China
| | - Min Lin
- Department of Gastroenterology, the Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, China.
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Liu C, Li Y, Liu Z, Cao C, Lin M, Chen X, Yuan M, Fan Y, Gu X, Wang L, Yang F, Ye F, Jin J. Structure-based discovery of potent CARM1 inhibitors for colorectal cancer therapy. Eur J Med Chem 2024; 269:116288. [PMID: 38460270 DOI: 10.1016/j.ejmech.2024.116288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/22/2024] [Accepted: 02/25/2024] [Indexed: 03/11/2024]
Abstract
Coactivator-associated arginine methyltransferase 1 (CARM1) plays an important role in cell proliferation and gene expression, and is highly expressed in a variety of tumor tissues. Guided by our previous reported structure of DCPR049_12, we focused on designing and evaluating selective CARM1 inhibitors, resulting in the identification of compound 11f as a promising lead candidate. Compound 11f displayed potent inhibition of CARM1 (IC50 = 9 nM). Comprehensive evaluations, including in vitro metabolic stability assessments, molecular modelling, cellular studies, and in vivo anti-tumor studies, confirmed that it induced cancer cell apoptosis and specifically inhibited CARM1's methylation function. Notably, compound 11f displayed significant anti-proliferative effects on colorectal cancer cell lines, showcasing its potential for targeted therapies against CARM1-related diseases. This study provides valuable insights for the future development of specific and effective CARM1 inhibitors.
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Affiliation(s)
- Chenyu Liu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Yang Li
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Zhihao Liu
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Chenxi Cao
- Department of Oncology, The Second Affiliated Hospital of Jiaxing University, No. 397, Huangcheng North Road, Jiaxing, 314000, China
| | - Min Lin
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Xin Chen
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Mengting Yuan
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yaohua Fan
- Department of Oncology, The Second Affiliated Hospital of Jiaxing University, No. 397, Huangcheng North Road, Jiaxing, 314000, China
| | - Xiaodong Gu
- Department of Oncology, The Second Affiliated Hospital of Jiaxing University, No. 397, Huangcheng North Road, Jiaxing, 314000, China
| | - Lei Wang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Fan Yang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China.
| | - Fei Ye
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
| | - Jia Jin
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
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Fettiplace A, Matis-Mitchell S, Molodetskyi O, Söderbergh M, Oscarsson J, Lin M, Ravikiran S, Billger M, Ambery P. A comprehensive analysis of liver safety across zibotentan oncology trials: knowledge of the past offers new perspectives on the present. Expert Opin Drug Saf 2024; 23:477-486. [PMID: 38469902 DOI: 10.1080/14740338.2024.2328816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/05/2024] [Indexed: 03/13/2024]
Abstract
BACKGROUND Endothelin receptor antagonists (ERAs) are associated with liver injury. We used data from previous oncology clinical trials to determine the liver safety profile of zibotentan, which is currently in clinical development (in combination with dapagliflozin) for chronic kidney disease and cirrhosis. RESEARCH DESIGN AND METHODS Six global, double-blinded, phase 2b and 3 clinical trials from the zibotentan oncology development program were pooled to analyze liver safety. Descriptive statistics, proportion of liver-related adverse events, liver biochemistry parameter elevation, and shifts from baseline were analyzed, with individual case assessment. RESULTS A total of 1532 patients received zibotentan for 285 days (mean), and 1486 patients received placebo for 320 days (mean). The frequency of any hepatic disorder preferred term was similar across zibotentan monotherapy (22/947 patients, 2.3%) and placebo monotherapy arms (30/881 patients, 3.4%). A total of 4 (0.4%) patients receiving zibotentan monotherapy experienced ALT elevations >5× ULN versus 8 (0.9%) receiving placebo. Of the seven patients receiving zibotentan who met criteria for potential Hy's Law, there were no cases of drug-induced liver injury. CONCLUSIONS We found no evidence of zibotentan-related liver biochemistry changes among cancer-treated patients, suggesting that hepatotoxicity of ERAs is molecule-dependent, and allowing exploration of zibotentan for new indications.
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Affiliation(s)
| | | | - Oleksandr Molodetskyi
- Global Patient Safety, Biopharmaceuticals, Chief Medical Office, R&D, AstraZeneca, Gothenburg, Sweden
| | - Malin Söderbergh
- Global Patient Safety, Biopharmaceuticals, Chief Medical Office, R&D, AstraZeneca, Gothenburg, Sweden
| | - Jan Oscarsson
- Late-Stage Clinical Development, Cardiovascular, Renal, and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Min Lin
- Biometrics Late-Stage Development, Cardiovascular, Renal, and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, Maryland, USA
| | - Srivathsa Ravikiran
- Biometrics Late-Stage Development, Cardiovascular, Renal, and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, Maryland, USA
| | - Martin Billger
- Safety Sciences Cardiovascular, Renal, and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Philip Ambery
- Late-Stage Clinical Development, Cardiovascular, Renal, and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
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19
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Zhuang H, Tang LM, Huang J, Lin M, Fan ZN. Removal of Horseshoe-Shaped Mass Encircling the Gastroesophageal Junction. Am J Gastroenterol 2024:00000434-990000000-01040. [PMID: 38372290 DOI: 10.14309/ajg.0000000000002727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 12/28/2023] [Indexed: 02/20/2024]
Affiliation(s)
- Hao Zhuang
- Digestive Endoscopy Department, Jiangsu Province Hospital, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Li-Ming Tang
- Gastroenterology Center, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Jin Huang
- Gastroenterology Center, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Min Lin
- Gastroenterology Center, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Zhi-Ning Fan
- Digestive Endoscopy Department, Jiangsu Province Hospital, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
- Gastroenterology Center, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
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20
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Wu X, Peng C, Lin M, Li Z, Yang X, Liu J, Yang X, Zuo X. Risk of metastasis and survival in patients undergoing different treatment strategies with T1 colonic neuroendocrine tumors. J Endocrinol Invest 2024; 47:671-681. [PMID: 37653287 DOI: 10.1007/s40618-023-02185-2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 08/24/2023] [Indexed: 09/02/2023]
Abstract
PURPOSE The efficacy and safety of local excision (LE) for small (< 1‒2 cm) colonic neuroendocrine tumors (NETs) is controversial due to the higher metastasis risk when compared with rectal NETs. The study aimed to evaluate the metastasis risk of T1 colonic NETs and compare patients' long-term prognosis after LE or radical surgery (RS). METHODS The Surveillance Epidemiology and End Results database was used to identify patients with T1 colonic NETs (2004‒2015). Multivariable logistic regression was performed to assess factors associated with metastasis risk. Propensity score matching was used to balance the variables. Cancer-specific survival (CSS) and overall survival (OS) were calculated to estimate the prognosis of patients with T1N0M0 colonic NETs who underwent LE or RS. RESULTS Of the 610 patients with colonic NETs, 46 (7.54%) had metastasis at diagnosis. Tumor size (11-20 mm) (OR = 9.51; 95% confidence interval (CI): 4.32‒21.45; P < 0.001), right colon (OR = 15.79; 95% CI 7.20‒38.56; P < 0.001), submucosal infiltration (OR = 2.08; 95% CI 0.84‒5.57; P = 0.125) were independent risk factors associated with metastasis. Of the 515 patients with T1N0M0 colonic NETs, the overall long-term prognosis of LE was as good as that of RS groups (after matching, 5-year CSS: 97.9% vs. 94.6%, P = 0.450; 5-year OS: 92.7% vs. 85.6%, P = 0.009). CONCLUSION Tumor size (11‒20 mm) and site (right colon) are associated with metastasis in T1 colonic NETs. In the absence of metastasis, LE could be a viable option for 0‒10 mm T1 colonic NETs with well/moderate differentiation in the left colon in terms of long-term survival.
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Affiliation(s)
- X Wu
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - C Peng
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - M Lin
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Z Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - X Yang
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Clinical Epidemiology Unit, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - J Liu
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - X Yang
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - X Zuo
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China.
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
- Robot engineering laboratory for precise diagnosis and therapy of GI tumor, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
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21
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Lin M, Sun Z, Xia Y, Zhang J. Reinforcement Learning-Based Model Predictive Control for Discrete-Time Systems. IEEE Trans Neural Netw Learn Syst 2024; 35:3312-3324. [PMID: 37204957 DOI: 10.1109/tnnls.2023.3273590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
This article proposes a novel reinforcement learning-based model predictive control (RLMPC) scheme for discrete-time systems. The scheme integrates model predictive control (MPC) and reinforcement learning (RL) through policy iteration (PI), where MPC is a policy generator and the RL technique is employed to evaluate the policy. Then the obtained value function is taken as the terminal cost of MPC, thus improving the generated policy. The advantage of doing so is that it rules out the need for the offline design paradigm of the terminal cost, the auxiliary controller, and the terminal constraint in traditional MPC. Moreover, RLMPC proposed in this article enables a more flexible choice of prediction horizon due to the elimination of the terminal constraint, which has great potential in reducing the computational burden. We provide a rigorous analysis of the convergence, feasibility, and stability properties of RLMPC. Simulation results show that RLMPC achieves nearly the same performance as traditional MPC in the control of linear systems and exhibits superiority over traditional MPC for nonlinear ones.
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22
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Wu J, Qian Z, Zhong D, Lin M. The impact of secondhand smoke on failure of Helicobacter pylori therapy is not inferior to that of smoking. Clin Res Hepatol Gastroenterol 2024; 48:102312. [PMID: 38430988 DOI: 10.1016/j.clinre.2024.102312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/22/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Previous studies have shown the associations between smoking and failure to eradicate Helicobacter pylori (H. pylori), but less is known about the impact of secondhand tobacco smoke (SHS) on H. pylori eradication. METHODS Between July 2022 to July 2023, 646 patients who received proton pump inhibitor (PPIs) as first-line H. pylori eradication therapy were recruited for the study. Information was obtained via the hospital database and a telephone questionnaire. Univariate and multivariate regression analysis were used to examine risk factors of H. pylori eradication failure. RESULTS This was a single-center retrospective study consisting of 646 patients who received PPIs as first-line H. pylori eradication therapy. This included 122 smokers, 165 never-smokers with SHS, and 359 never-smokers with no SHS exposure. Compared with subjects in the "eradication success" group, those in the "eradication failure" group tended to have higher prevalence of smoke consumption and have higher prevalence of SHS exposure. In binary logistic regression analysis, smoking (OR 3.409, 95 % CI: 1.782- 6.522, P < 0.001) and SHS (OR 3.188, 95 % CI: 1.726-5.886, P < 0.001) were independent predictors of eradication failure. In addition, never-smokers with SHS exposure and smoking had similar effects on H. pylori eradication (OR, 0.893; 95 % CI, 0.464 to 1.717, P value = 0.734). CONCLUSION Both smoking and SHS are independent risk factors for H. pylori eradication failure. Furthermore, the impact of SHS is not inferior to smoking.
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Affiliation(s)
- Jiajia Wu
- Department of Gastroenterology, Jinhua People's Hospital, Jinhua 321000, China
| | - Zheng Qian
- Department of Gastroenterology, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou 213000, China
| | - Dingfu Zhong
- Department of Gastroenterology, Jinhua People's Hospital, Jinhua 321000, China
| | - Min Lin
- Department of Gastroenterology, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou 213000, China.
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23
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Heerspink HJL, Greasley PJ, Ahlström C, Althage M, Dwyer JP, Law G, Wijkmark E, Lin M, Mercier AK, Sunnåker M, Turton M, Wheeler DC, Ambery P. Efficacy and safety of zibotentan and dapagliflozin in patients with chronic kidney disease: study design and baseline characteristics of the ZENITH-CKD trial. Nephrol Dial Transplant 2024; 39:414-425. [PMID: 37632201 PMCID: PMC10899767 DOI: 10.1093/ndt/gfad183] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 07/07/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND Sodium-glucose co-transporter 2 inhibitors (SGLT2is) are part of the standard of care for patients with chronic kidney disease (CKD), both with and without type 2 diabetes. Endothelin A (ETA) receptor antagonists have also been shown to slow progression of CKD. Differing mechanisms of action of SGLT2 and ETA receptor antagonists may enhance efficacy. We outline a study to evaluate the effect of combination zibotentan/dapagliflozin versus dapagliflozin alone on albuminuria and estimated glomerular filtration rate (eGFR). METHODS We are conducting a double-blind, active-controlled, Phase 2b study to evaluate the efficacy and safety of ETA receptor antagonist zibotentan and SGLT2i dapagliflozin in a planned 415 adults with CKD (Zibotentan and Dapagliflozin for the Treatment of CKD; ZENITH-CKD). Participants are being randomized (1:2:2) to zibotentan 0.25 mg/dapagliflozin 10 mg once daily (QD), zibotentan 1.5 mg/dapagliflozin 10 mg QD and dapagliflozin 10 mg QD alone, for 12 weeks followed by a 2-week off-treatment wash-out period. The primary endpoint is the change in log-transformed urinary albumin-to-creatinine ratio (UACR) from baseline to Week 12. Other outcomes include change in blood pressure from baseline to Week 12 and change in eGFR the study. The incidence of adverse events will be monitored. Study protocol-defined events of special interest include changes in fluid-related measures (weight gain or B-type natriuretic peptide). RESULTS A total of 447 patients were randomized and received treatment in placebo/dapagliflozin (n = 177), zibotentan 0.25 mg/dapagliflozin (n = 91) and zibotentan 1.5 mg/dapagliflozin (n = 179). The mean age was 62.8 years, 30.9% were female and 68.2% were white. At baseline, the mean eGFR of the enrolled population was 46.7 mL/min/1.73 m2 and the geometric mean UACR was 538.3 mg/g. CONCLUSION This study evaluates the UACR-lowering efficacy and safety of zibotentan with dapagliflozin as a potential new treatment for CKD. The study will provide information about an effective and safe zibotentan dose to be further investigated in a Phase 3 clinical outcome trial. CLINICAL TRIAL REGISTRATION NUMBER NCT04724837.
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Affiliation(s)
- Hiddo J L Heerspink
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- The George Institute for Global Health, Sydney, New South Wales, Australia
| | - Peter J Greasley
- Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Christine Ahlström
- DMPK, Research and Early Development Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Magnus Althage
- Translational Science & Experimental Medicine, Research and Early Development Cardiovascular, Renal, and Metabolism, Biopharmaceutical R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Jamie P Dwyer
- Division of Nephrology/Hypertension, University of Utah Health, Salt Lake City, UT, USA
| | - Gordon Law
- Early Biometrics & Statistical Innovation, Data Science and Artificial Intelligence, R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Emma Wijkmark
- Biometrics Late Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Min Lin
- Biometrics Late Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Anne-Kristina Mercier
- Clinical Pharmacology and Quantitative Pharmacology, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Mikael Sunnåker
- Clinical Pharmacology and Quantitative Pharmacology, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Michelle Turton
- Biopharma Clinical Operations, Early CVRM, AstraZeneca, Cambridge, UK
| | - David C Wheeler
- Department of Renal Medicine, University College London, London, UK
| | - Philip Ambery
- Clinical Late Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
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24
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Lin M, Griffin SO, Li CH, Wei L, Espinoza L, Wang CY, Thornton-Evans G. Exploring Recent Decreases in First Molar Sealants among US Children. J Dent Res 2024:220345241231774. [PMID: 38410889 DOI: 10.1177/00220345241231774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024] Open
Abstract
Analyses of National Health and Nutrition Examination Survey (NHANES) data suggested a significant decrease in sealant prevalence among children between 2011 to 2014 and 2015 to 2018. We explore whether this decrease could be associated with possible changes in 1) clinical sealant delivery, 2) dental materials (i.e., increased use of glass ionomer [GI] sealants resulting in an inability to detect sealant fragments that still provide preventive benefits or increased use of composite restorations leading to misclassifying sealants as restorations), and 3) examination sensitivity and specificity. We used NHANES data to estimate the prevalences of sealants, untreated caries, and restorations in ≥1 first permanent molar among children aged 7 to 10 y and used Medical Expenditure Panel Survey data to estimate the annual clinical delivery of sealants and fluoride treatments. We examined changes in outcomes between 2 periods (P < 0.05) controlling for selected sociodemographic characteristics. NHANES sealant examination quality was based on the reference examiner's replicate examinations. The adjusted prevalence of sealants decreased relatively by 27.5% (46.6% vs. 33.8%). Overall, untreated caries decreased. Untreated caries and restoration decreased among children without sealants. Annual clinical sealant delivery did not change, whereas fluoride treatment delivery increased. The decrease in sealant prevalence held when assessed for various age ranges and NHANES cycle combinations. While sealant examination specificity remained similar between the periods, sensitivity (weighted by the proportion of exams by each examiner) decreased relatively by 17.4% (0.92 vs. 0.76). These findings suggest that decreased sealant prevalence was not supported by decreased clinical sealant delivery nor increased use of composite restorations. Decreased examination sensitivity, which could be due to an increased use of GI sealants, could contribute to the decrease in sealant prevalence. The decrease in caries among children without sealants could suggest the increased use of GI sealants. However, we could not rule out that the decrease in caries could be attributable to increased fluoride treatment delivery.
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Affiliation(s)
- M Lin
- Division of Oral Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - S O Griffin
- Division of Oral Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - C H Li
- CyberData Technologies, Inc., Herndon, VA, USA
| | - L Wei
- DB Consulting Group, Inc., Atlanta, GA, USA
| | - L Espinoza
- Division of Oral Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - C Y Wang
- Division of Health and Nutrition Examination Surveys, National Center for Health Statistics, CDC, Hyattsville, MD, USA
| | - G Thornton-Evans
- Division of Oral Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
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25
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Chen Q, Wang L, Lin M, Chen W, Wu W, Chen Y. Development and implementation of medication-related clinical rules for obstetrics, gynaecology, and paediatric outpatients. Eur J Hosp Pharm 2024; 31:101-106. [PMID: 35523537 PMCID: PMC10895191 DOI: 10.1136/ejhpharm-2021-003170] [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: 11/25/2021] [Accepted: 04/12/2022] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES Prescription errors can cause serious adverse drug events. Clinical decision support systems prevent prescription errors; however, real-time clinical rules in obstetrics, gynaecology, and paediatric outpatients remain unexplored. We evaluated the effects of localised, real-time clinical rules on alert rates and acceptance rates compared with manual prescription review. METHODS We developed real-time clinical rules that incorporate information systems to obtain characteristic information and laboratory values. We conducted a retrospective cohort study to compare the alert and recommendation acceptance rates of all prescription error types before and after clinical rule implementation in obstetrics, gynaecology, and paediatrics. Clinical rules, prescription error types, and alerts were determined by a prescribing review committee comprising physicians, pharmacists, nurses, and administrators. The difference in alert and acceptance rates between the groups was analysed using relative risk. RESULTS The number of alerts increased after clinical rules implementation; the number of on-duty pharmacists for review decreased from 10 to 2. Compared with those with manual review, the alert rates for paediatrics and obstetrics and gynaecology increased with the clinical rules by 3.97- and 11.26-fold, respectively, and the alert rates for drug-drug interactions (DDIs) and combined medication errors in obstetrics and gynaecology increased with the clinical rules by 26.10- and 26.54-fold, respectively. In paediatrics, the alert rate for all prescription error types was higher with the clinical rules review than with the manual review; the alert rates for DDI, dosage, and combination medication errors were significantly different between the clinical rules and the manual review. However, there was no difference in the recommendation acceptance rate between the manual review and the clinical rules. CONCLUSIONS Clinical rules can identify prescription errors that manual review cannot detect and ensure real-time review efficiency in high-volume outpatient prescription settings. The high acceptance rate and modification of prescriptions may be relevant to highly customised and localised clinical rules.
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Affiliation(s)
- Quanyao Chen
- Department of Pharmacy, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Luwei Wang
- Department of Pharmacy, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Min Lin
- Department of Pharmacy, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Weida Chen
- Department of Pharmacy, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Wen Wu
- Department of Pharmacy, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Yao Chen
- Department of Pharmacy, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
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26
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Xiao H, Fang W, Lin M, Zhou Z, Fei H, Chen C. [A multiscale carotid plaque detection method based on two-stage analysis]. Nan Fang Yi Ke Da Xue Xue Bao 2024; 44:387-396. [PMID: 38501425 PMCID: PMC10954526 DOI: 10.12122/j.issn.1673-4254.2024.02.22] [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] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
OBJECTIVE To develop a method for accurate identification of multiscale carotid plaques in ultrasound images. METHODS We proposed a two-stage carotid plaque detection method based on deep convolutional neural network (SM-YOLO).A series of algorithms such as median filtering, histogram equalization, and Gamma transformation were used to preprocess the dataset to improve image quality. In the first stage of the model construction, a candidate plaque set was built based on the YOLOX_l target detection network, using multiscale image training and multiscale image prediction strategies to accommodate carotid artery plaques of different shapes and sizes. In the second stage, the Histogram of Oriented Gradient (HOG) features and Local Binary Pattern (LBP) features were extracted and fused, and a Support Vector Machine (SVM) classifier was used to screen the candidate plaque set to obtain the final detection results. This model was compared quantitatively and visually with several target detection models (YOLOX_l, SSD, EfficientDet, YOLOV5_l, Faster R-CNN). RESULTS SM-YOLO achieved a recall of 89.44%, an accuracy of 90.96%, a F1-Score of 90.19%, and an AP of 92.70% on the test set, outperforming other models in all performance indicators and visual effects. The constructed model had a much shorter detection time than the Faster R-CNN model (only one third of that of the latter), thus meeting the requirements of real-time detection. CONCLUSION The proposed carotid artery plaque detection method has good performance for accurate identification of carotid plaques in ultrasound images.
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Affiliation(s)
- H Xiao
- School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - W Fang
- School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - M Lin
- School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - Z Zhou
- Guangzhou Shangyi Network Information Technology Co., Ltd., Guangzhou 510515, China
| | - H Fei
- Guangdong Provincial People's Hospital Affiliated to Southern Medical University, Guangzhou 510180, China
| | - C Chen
- School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
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27
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Han H, Wang L, Ding Y, Neuber B, Hueckelhoven-Krauss AG, Lin M, Yao H, Chen Q, Sauer T, Schubert ML, Guo Z, Müller-Tidow C, Schmitt M, Schmitt A. Extracorporeal photopheresis as a promising strategy for the treatment of GvHD after CAR-T cell therapy. Blood Adv 2024:bloodadvances.2023012463. [PMID: 38359409 DOI: 10.1182/bloodadvances.2023012463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/02/2024] [Accepted: 02/03/2024] [Indexed: 02/17/2024] Open
Abstract
Graft-versus-host disease (GvHD) occurs in about 10-33% of patients receiving "al-logeneic" or "autologous" CAR-T cells after preceding allogeneic hematopoietic stem cell transplantation (allo-HSCT) due to the substantial presence of alloreactive T cells. Extracorporeal photopheresis (ECP) shows promising clinical outcomes in the treatment of GvHD after allo-HSCT without hampering anti-tumor and anti-viral effects. This raises an interesting question: whether ECP might constitute a new way to treat patients with GvHD after CAR-T cell therapy without compromising CAR-T cells significantly. Third-generation CD19-specific CAR-T cells were generated and an in vitro ECP protocol was established. The impact of ECP on CAR-T cells was comprehensively investigated in two models: the non-dilution model reflects days following CAR-T cell infusion and the dilution model weeks after infusion. The ther-apeutic effect of ECP on GvHD was examined in an in vitro mixed lymphocyte reac-tion (MLR) assay. We found out that ECP treated CAR-T cells demonstrated reduced potency in inducing alloreaction compared to the group without ECP treatment in MLR assay. ECP could selectively induce apoptosis, thereby enriching the naive and central memory CAR-T cells with a reduced alloreactivity. The cytokine milieu of CAR-T cells could be switched from immune stimulation to immune tolerance in both models. Moreover, ECP could modulate the proliferative capacity of CAR-T cells without hampering their long-term functionality in the dilution model. In con-clusion, ECP constitutes a promising treatment strategy for GvHD after allo-HSCT and CAR-T cell transfusion, as ECP reduces the alloreactivity without hampering CAR-T cell functionality.
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Affiliation(s)
- Huixiu Han
- University Clinic Heidelberg, Heidelberg, Germany, Heidelberg, Germany
| | - Lei Wang
- University Hospital Heidelberg, Heidelberg, Germany
| | - Yuntian Ding
- University Hospital Heidelberg, Heidelberg, Germany
| | | | | | - Min Lin
- University Hospital Heidelberg, Heidelberg, Germany
| | - Hao Yao
- University Hospital Heidelberg, Heidelberg, Germany
| | - Qian Chen
- University Hospital Heidelberg, Heidelberg, Germany
| | - Tim Sauer
- University Hospital Heidelberg, Heidelberg, Germany
| | | | - Zhiqiang Guo
- Shanxi Province Fenyang Hospital, Fenyang, China
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Cheng YQ, Wang GF, Zhou XL, Lin M, Zhang XW, Huang Q. Early adenocarcinoma mixed with a neuroendocrine carcinoma component arising in the gastroesophageal junction: A case report. World J Gastrointest Oncol 2024; 16:563-570. [PMID: 38425401 PMCID: PMC10900165 DOI: 10.4251/wjgo.v16.i2.563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/09/2023] [Accepted: 01/04/2024] [Indexed: 02/02/2024] Open
Abstract
BACKGROUND Early adenocarcinoma mixed with a neuroendocrine carcinoma (NEC) component arising in the gastroesophageal junctional (GEJ) region is rare and even rarer in young patients. Here, we report such a case in a 29-year-old Chinese man. CASE SUMMARY This patient presented to our hospital with a 3-mo history of dysphagia and regurgitation. Upper endoscopy revealed an elevated nodule in the distal esophagus 1.6 cm above the GEJ line, without Barrett's esophagus or involvement of the gastric cardia. The nodule was completely resected by endoscopic submucosal dissection (ESD). Pathological examination confirmed diagnosis of intramucosal adenocarcinoma mixed with an NEC component, measuring 1.5 cm. Immunohistochemically, both adenocarcinoma and NEC components were positive for P53 with a Ki67 index of 90%; NEC was positive for synaptophysin and chromogranin. Next-generation sequencing of 196 genes demonstrated a novel germline mutation of the ERCC3 gene in the DNA repair pathway and a germline mutation of the RNF43 gene, a common gastric cancer driver gene, in addition to pathogenic somatic mutations in P53 and CHEK2 genes. The patient was alive without evidence of the disease 36 mo after ESD. CONCLUSION Early adenocarcinoma with an NEC component arising in the distal esophageal side of the GEJ region showed evidence of gastric origin.
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Affiliation(s)
- Yu-Qing Cheng
- Department of Pathology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou 213164, Jiangsu Province, China
| | - Geng-Fang Wang
- Department of Pathology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou 213164, Jiangsu Province, China
| | - Xiao-Li Zhou
- Department of Pathology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou 213164, Jiangsu Province, China
| | - Min Lin
- Gastroenterology Center, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou 213164, Jiangsu Province, China
| | - Xin-Wen Zhang
- Department of Pathology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou 213164, Jiangsu Province, China
- Graduate School, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Qin Huang
- Department of Pathology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou 213164, Jiangsu Province, China
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, United States
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Lin M, Zhang M, Yi B, Chen J, Wen S, Chen R, Chen T, Li Z. Emerging role of SENP1 in tumorigenesis and cancer therapy. Front Pharmacol 2024; 15:1354323. [PMID: 38389923 PMCID: PMC10882314 DOI: 10.3389/fphar.2024.1354323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/31/2024] [Indexed: 02/24/2024] Open
Abstract
Acting as a cysteine protease, small ubiquitin-like modifier (SUMO)/sentrin-specific protease1 (SENP1) involved in multiple physiological and pathological processes through processing the precursor SUMO protein into mature form and deSUMOylating target protein. It has been reported that SENP1 is highly expressed and plays a carcinogenic role in various cancers. In this paper, we mainly explore the function and mechanism of SENP1 in tumor cell proliferation, apoptosis, invasion, metastasis, stemness, angiogenesis, metabolism and drug resistance. Furthermore, the research progress of SENP1 inhibitors for cancer treatment is introduced. This study aims to provide theoretical references for cancer therapy by targeting SENP1.
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Affiliation(s)
- Min Lin
- Department of Experimental Research, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Man Zhang
- Department of Experimental Research, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Bei Yi
- Department of Experimental Research, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Jinchi Chen
- Department of Experimental Research, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Siqi Wen
- Department of Experimental Research, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Ruiqi Chen
- Department of Gastrointestinal Surgery, Guangxi Clinical Research Center for Colorectal Cancer, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Tianyu Chen
- Department of Gastrointestinal Surgery, Guangxi Clinical Research Center for Colorectal Cancer, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Zhao Li
- Department of Experimental Research, Guangxi Medical University Cancer Hospital, Nanning, China
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Zhang T, Liang X, Wei H, Lin M, Chen J. [Single - nucleotide polymorphisms of artemisinin resistance - related Pfubp1 and Pfap2mu genes in Bioko Island, Equatorial Guinea from 2018 to 2020]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2024; 35:557-564. [PMID: 38413016 DOI: 10.16250/j.32.1374.2023180] [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] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
OBJECTIVE To investigate the prevalence of single nucleotide polymorphisms (SNPs) of artemisinin resistance-related Pfubp1 and Pfap2mu genes in Plasmodium falciparum isolates from Bioko Island, Equatorial Guinea, so as to to provide baseline data for the formulation of malaria control strategies in Bioko Island. METHODS A total of 184 clinical blood samples were collected from patients with P. falciparum malaria in Bioko Island, Equatorial Guinea from 2018 to 2020, and genomic DNA was extracted. The Pfubp1 and Pfap2mu gene SNPs of P. falciparum were determined using a nested PCR assay and Sanger sequencing, and the gene sequences were aligned. RESULTS There were 159 wild-type P. falciparum isolates (88.83%) from Bioko Island, Equatorial Guinea, and 6 SNPs were identified in 20 Pfubp1-mutant P. falciparum isolates (11.17%), in which 4 non-synonymous mutations were detected, including E1516G, K1520E, D1525E, E1528D. There was only one Pfubp1gene mutation site in 19 Pfubp1-mutant P. falciparum isolates (95.00%), in which non-synonymous mutations accounted for 68.42% (13/19). D1525E and E1528D were identified as major known epidemic mutation sites in the Pfubp1 gene associated with resistance to artemisinin-based combination therapies (ACTs). At amino acid position 1525, there were 178 wild-type P. falciparum isolates (99.44%) and 1 mutant isolate (0.56%), with such a mutation site identified in blood samples in 2018, and at amino acid position 1528, there were 167 wild-type P. falciparum isolates (93.30%) and 12 mutant isolates (6.70%). The proportions of wild-type P. falciparum isolates were 95.72% (134/140), 79.25% (126/159) and 95.83% (161/168) in the target amplification fragments of the three regions in the Pfap2mu gene (Pfap2mu-inner1, Pfap2mu-inner2, Pfap2mu-inner3), respectively. There were 16 different SNPs identified in all successfully sequenced P. falciparum isolates, in which 7 non-synonymous mutations were detected, including S160N, K199T, A475V, S508G, I511M, L595F, and Y603H. There were 7 out of 43 Pfap2mu-mutant P. falciparum isolates (16.28%) that harbored only one gene mutation site, in which non-synonymous mutations accounted for 28.57% (2/7). For the known delayed clearance locus S160N associated with ACTs, there were 143 wild-type (89.94%) and 16 Pfap2mu-mutant P. falciparum isolates (10.06%). CONCLUSIONS Both Pfubp1 and Pfap2mu gene mutations were detected in P. falciparum isolates from Bioko Island, Equatorial Guinea from 2018 to 2020, with a low prevalence rate of Pfubp1 gene mutation and a high prevalence rate of Pfap2mu gene mutation. In addition, new mutation sites were identified in the Pfubp1 (E1504E and K1520E) and Pfap2mu genes (A475V and S508G).
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Affiliation(s)
- T Zhang
- Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - X Liang
- Huizhou Central Hospital Affiliated to Guangdong Medical University, Huizhou, Guangdong 516001, China
| | - H Wei
- Chaozhou People's Hospital Affiliated to Shantou University, Chaozhou, Guangdong 521000, China
- School of Laboratory Medicine, Youjiang Medical University for Nationalities, Baise, Guangxi 533000, China
| | - M Lin
- Chaozhou People's Hospital Affiliated to Shantou University, Chaozhou, Guangdong 521000, China
- School of Laboratory Medicine, Youjiang Medical University for Nationalities, Baise, Guangxi 533000, China
| | - J Chen
- Guangdong Medical University, Zhanjiang, Guangdong 524023, China
- Huizhou Central Hospital Affiliated to Guangdong Medical University, Huizhou, Guangdong 516001, China
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Liu LL, Yue JZ, Lu ZY, Deng RY, Li CC, Yu YN, Zhou WJ, Lin M, Gao HT, Liu J, Xia LZ. Long-term exposure to the mixture of phthalates induced male reproductive toxicity in rats and the alleviative effects of quercetin. Toxicol Appl Pharmacol 2024; 483:116816. [PMID: 38218207 DOI: 10.1016/j.taap.2024.116816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 12/30/2023] [Accepted: 01/09/2024] [Indexed: 01/15/2024]
Abstract
Phthalates (PEs), such as di(2-ethylhexyl) phthalate (DEHP), dibutyl phthalate (DBP) and butyl benzyl phthalate (BBP) could cause reproductive and developmental toxicities, while human beings are increasingly exposed to them at low-doses. Phytochemical quercetin (Que) is a flavonoid that has estrogenic effect, anti-inflammatory and anti-oxidant effects. This study was conducted to assess the alleviative effect of Que. on male reproductive toxicity induced by the mixture of three commonly used PEs (MPEs) at low-dose in rats, and explore the underlying mechanism. Male rats were treated with MPEs (16 mg/kg/day) and/or Que. (50 mg/kg/d) for 91 days. The results showed that MPEs exposure caused male reproductive injuries, such as decreased serum sex hormones levels, abnormal testicular pathological structure, increased abnormal sperm rate and changed expressions of PIWIL1 and PIWIL2. Furthermore, MPEs also changed the expression of steroidogenic proteins in steroid hormone metabolism, including StAR, CYP11A1, CYP17A1, 17β-HSD, CYP19A1. However, the alterations of these parameters were reversed by Que. MPEs caused male reproductive injuries in rats; Que. inhibited MPEs' male reproductive toxicity, which might relate to the improvement of testosterone biosynthesis.
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Affiliation(s)
- Li-Lan Liu
- Department of Preventive Medicine, School of Public Health, Wenzhou Medical University, Wenzhou 325035, China; Zhejiang Provincial Key Laboratory of Watershed Science and Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Jun-Zhe Yue
- Department of Preventive Medicine, School of Public Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Zhen-Yu Lu
- Department of Preventive Medicine, School of Public Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Ru-Ya Deng
- Department of Preventive Medicine, School of Public Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Can-Can Li
- Department of Preventive Medicine, School of Public Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Ye-Na Yu
- Department of Preventive Medicine, School of Public Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Wen-Jin Zhou
- Department of Preventive Medicine, School of Public Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Min Lin
- Department of Preventive Medicine, School of Public Health, Wenzhou Medical University, Wenzhou 325035, China; Zhejiang Provincial Key Laboratory of Watershed Science and Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Hai-Tao Gao
- Department of Preventive Medicine, School of Public Health, Wenzhou Medical University, Wenzhou 325035, China; Zhejiang Provincial Key Laboratory of Watershed Science and Health, Wenzhou Medical University, Wenzhou 325035, China.
| | - Jiaming Liu
- Department of Preventive Medicine, School of Public Health, Wenzhou Medical University, Wenzhou 325035, China; Zhejiang Provincial Key Laboratory of Watershed Science and Health, Wenzhou Medical University, Wenzhou 325035, China.
| | - Ling-Zi Xia
- Department of Preventive Medicine, School of Public Health, Wenzhou Medical University, Wenzhou 325035, China; Zhejiang Provincial Key Laboratory of Watershed Science and Health, Wenzhou Medical University, Wenzhou 325035, China.
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Yilmaz G, Morrill T, Pilot W, Ward C, Mitchell G, Soutyrine A, Dan H, Lin M, Guan J. Optimization of RT-QuIC Assay Duration for Screening Chronic Wasting Disease in White-Tailed Deer. Vet Sci 2024; 11:60. [PMID: 38393078 PMCID: PMC10891863 DOI: 10.3390/vetsci11020060] [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: 09/05/2023] [Revised: 01/15/2024] [Accepted: 01/19/2024] [Indexed: 02/25/2024] Open
Abstract
Real-time quaking-induced conversion (RT-QuIC) assays have become a common tool to detect chronic wasting disease (CWD) and are very sensitive provided the assay duration is sufficient. However, a prolonged assay duration may lead to non-specific signal amplification. The wide range of pre-defined assay durations in current RT-QuIC applications presents a need for methods to optimize the RT-QuIC assay. In this study, receiver operating characteristic (ROC) analysis was applied to optimize the assay duration for CWD screening in obex and retropharyngeal lymph node (RLN) tissue specimens. Two different fluorescence thresholds were used: a fixed threshold based on background fluorescence (Tstdev) and a max-point ratio (maximum/background fluorescence) threshold (TMPR) to determine CWD positivity. The optimal assay duration was 33 h for obex and 30 h for RLN based on Tstdev, and 29 h for obex and 32 h for RLN based on TMPR. The optimized assay durations were then evaluated for screening CWD in white-tailed deer from an affected farm. At a replicate level, using the optimized assay durations with TStdev and TMPR, the level of agreement with enzyme-linked immunosorbent assay (ELISA) was significantly higher (p < 0.05) than that when using a 40 h assay duration. These findings demonstrate that the optimization of assay duration via a ROC analysis can improve RT-QuIC assays for screening CWD in white-tailed deer.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Jiewen Guan
- Ottawa Laboratory Fallowfield, Canadian Food Inspection Agency, Ottawa, ON K2J 4S1, Canada
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Liu X, Xu Y, Wang G, Ma X, Lin M, Zuo Y, Li W. Bronchiolar adenoma/ciliated muconodular papillary tumour: advancing clinical, pathological, and imaging insights for future perspectives. Clin Radiol 2024; 79:85-93. [PMID: 38049359 DOI: 10.1016/j.crad.2023.10.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/11/2023] [Accepted: 10/30/2023] [Indexed: 12/06/2023]
Abstract
Bronchiolar adenoma/ciliated muconodular papillary tumour (BA/CMPT) is a benign peripheral lung tumour composed of bilayered bronchiolar-type epithelium containing a continuous basal cell layer; however, the similarities in imaging and tissue biopsy findings at histopathology between BA/CMPT and malignant tumours, including lung adenocarcinoma, pose significant challenges in accurately diagnosing BA/CMPT preoperatively. This difficulty in differentiation often results in misdiagnosis and unnecessary overtreatment. The objective of this article is to provide a comprehensive and systematic review of BA/CMPT, encompassing its clinical manifestations, pathological basis, imaging features, and differential diagnosis. By enhancing healthcare professionals' understanding of this disease, we aim to improve the accuracy of preoperative BA/CMPT diagnosis. This improvement is crucial for the development of appropriate therapeutic strategies and the overall improvement of patient prognosis.
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Affiliation(s)
- X Liu
- Medical School, Kunming University of Science and Technology, Kunming 650500, P.R. China; Department of Radiology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, China
| | - Y Xu
- Department of Pathology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan, China
| | - G Wang
- Department of Radiology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan, China
| | - X Ma
- Department of Scientific Research, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan, China
| | - M Lin
- Medical School, Kunming University of Science and Technology, Kunming 650500, P.R. China; Department of Radiology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, China
| | - Y Zuo
- Department of Radiology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan, China.
| | - W Li
- Department of Radiology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan, China.
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Lin M, Ye QL, Zhang ZJ, Liao WB, Fan Q. Camelliazijinica (Theaceae), a new species endemic to Danxia landscape from Guangdong Province, China. PhytoKeys 2024; 237:245-255. [PMID: 38333589 PMCID: PMC10851153 DOI: 10.3897/phytokeys.237.114768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 01/17/2024] [Indexed: 02/10/2024]
Abstract
A new species of the genus Camellia (Theaceae), Camelliazijinica, discovered in the Danxia landscape from Guangdong Province, China, is characterized and illustrated. Phylogenetic analysis based on chloroplast genomes suggested its affinity with C.drupifera, C.oleifera and C.fluviatilis, however, it morphologically differs from all of the latter by leaf shape and size. Phonologically, it most closely resembles C.microphylla, but can be distinguished from the latter by its young branchlets glabrous (vs. densely pubescent), fewer bracteoles and sepals, diverse leaf shape, midvein raised slightly with sparsely pubescent or glabrous (vs. prominently with densely pubescent) and leaf adaxially matt (vs. vernicose) when dried. By morphological and molecular analyses, Camelliazijinica represented a distinct new species of C.sect.Paracamellia.
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Affiliation(s)
- Min Lin
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, ChinaSun Yat-sen UniversityGuangzhouChina
| | - Qin-Liang Ye
- Zijin Baixi Provincial Nature Reserve of Guangdong, Heyuan 517400, ChinaZijin Baixi Provincial Nature ReserveHeyuanChina
| | - Zhi-Jian Zhang
- Zijin Baixi Provincial Nature Reserve of Guangdong, Heyuan 517400, ChinaZijin Baixi Provincial Nature ReserveHeyuanChina
| | - Wen-Bo Liao
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, ChinaSun Yat-sen UniversityGuangzhouChina
| | - Qiang Fan
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, ChinaSun Yat-sen UniversityGuangzhouChina
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Xue H, Yu A, Zhang L, Chen L, Guo Q, Lin M, Lin N, Chen X, Xu L, Huang H. Genetic testing for fetal loss of heterozygosity using single nucleotide polymorphism array and whole-exome sequencing. Sci Rep 2024; 14:2190. [PMID: 38273042 PMCID: PMC10810965 DOI: 10.1038/s41598-024-52812-y] [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: 07/03/2023] [Accepted: 01/23/2024] [Indexed: 01/27/2024] Open
Abstract
The study explored the clinical significance of fetal loss of heterozygosity (LOH) identified by single-nucleotide polymorphism array (SNP array). We retrospectively reviewed data from pregnant women who underwent invasive diagnostic procedures at prenatal diagnosis centers in southeastern China from December 2016 to December 2021. SNP array was performed by the Affymetrix CytoScan 750 K array platform. Fetuses with LOH were further identified by parental verification, MS-MLPA, and/or trio whole-exome sequencing (trio-WES). The genetic results, fetal clinical manifestations, and perinatal outcome were analyzed. Of 11,062 fetuses, 106 (0.96%) had LOH exhibiting a neutral copy number, 88 (83.0%) had LOH in a single chromosome, whereas 18 (17.0%) had multiple LOHs on different chromosomes. Sixty-six fetuses had ultrasound anomalies (UAs), most frequently fetal growth restriction (18/66 (27.3%)). Parental SNP array verification was performed in 21 cases and trio-WES in 21 cases. Twelve cases had clinically relevant uniparental disomy, five had pathogenic variants, four had likely pathogenic variants, six had variants of unknown significance, and eight had identity by descent. The rate of adverse pregnancy outcomes in fetuses with LOH and UAs (24/66 (36.4%)) was higher than in those without UAs (6/40 (15.0%)) (p < 0.05). LOH is not uncommon. Molecular genetic testing techniques, including parental SNP array verification, trio-WES, methylation-specific multiplex ligation-dependent probe amplification, regular and systematic ultrasonic monitoring, and placental study, can accurately assess the prognosis and guide the management of the affected pregnancy.
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Affiliation(s)
- Huili Xue
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, No. 18 Daoshan Road, Gulou District, Fuzhou City, 350001, Fujian Province, China.
| | - Aili Yu
- Reproductive Medicine Center, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, No. 18 Daoshan Road, Gulou District, Fuzhou City, 350001, Fujian Province, China
| | - Lin Zhang
- Fujian Medical University, No. 88 Jiaotong Road, Cangshan District, Fuzhou City, 350001, Fujian Province, China
| | - Lingji Chen
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, No. 18 Daoshan Road, Gulou District, Fuzhou City, 350001, Fujian Province, China
| | - Qun Guo
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, No. 18 Daoshan Road, Gulou District, Fuzhou City, 350001, Fujian Province, China
| | - Min Lin
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, No. 18 Daoshan Road, Gulou District, Fuzhou City, 350001, Fujian Province, China
| | - Na Lin
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, No. 18 Daoshan Road, Gulou District, Fuzhou City, 350001, Fujian Province, China
| | - Xuemei Chen
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, No. 18 Daoshan Road, Gulou District, Fuzhou City, 350001, Fujian Province, China
| | - Liangpu Xu
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, No. 18 Daoshan Road, Gulou District, Fuzhou City, 350001, Fujian Province, China.
| | - Hailong Huang
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, No. 18 Daoshan Road, Gulou District, Fuzhou City, 350001, Fujian Province, China.
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Xu S, Wu S, Zhang M, Xie J, Lin M, Jin L, Zhang J, Wang Y, Fan M, Fang Z, Li W, Ouyang C, Kwon D, Que N, Li Z, Mao J, Chen H, Harris J, Wu X, Wu J, Yin H, Chan WC, Horne D, Huang W. Pharmacological profiling of a berbamine derivative for lymphoma treatment. Blood Adv 2024; 8:309-323. [PMID: 37967356 PMCID: PMC10824694 DOI: 10.1182/bloodadvances.2023010873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 10/10/2023] [Accepted: 10/26/2023] [Indexed: 11/17/2023] Open
Abstract
ABSTRACT Ca2+/calmodulin-dependent protein kinase II γ (CAMKIIγ) has been identified as a potential target for treating cancer. Based on our previous study of berbamine (BBM) as a CAMKIIγ inhibitor, we have synthesized a new BBM derivative termed PA4. Compared with BBM, PA4 showed improved potency and specificity and was more cytotoxic against lymphoma and leukemia than against other types of cancer. In addition to indirectly targeting c-Myc protein stability, we demonstrated that its cytotoxic effects were also mediated via increased reactive oxygen species production in lymphoma cells. PA4 significantly impeded tumor growth in vivo in a xenograft T-cell lymphoma mouse model. Pharmacokinetics studies demonstrated quick absorption into plasma after oral administration, with a maximum concentration of 1680 ± 479 ng/mL at 5.33 ± 2.31 hours. The calculated oral absolute bioavailability was 34.1%. Toxicity assessment of PA4 showed that the therapeutic window used in our experiments was safe for future development. Given its efficacy, safety, and favorable pharmacokinetic profile, PA4 is a potential lead candidate for treating lymphoma.
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Affiliation(s)
- Senlin Xu
- Molecular and Cellular Biology of Cancer Program and Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolic Research Institute, Beckman Research Institute, City of Hope, Duarte, CA
- Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute, City of Hope, Duarte, CA
| | - Shunquan Wu
- Molecular and Cellular Biology of Cancer Program and Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolic Research Institute, Beckman Research Institute, City of Hope, Duarte, CA
- Department of Hematology, Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fujian Medical University Union Hospital, Fujian, China
| | - Mingfeng Zhang
- Molecular and Cellular Biology of Cancer Program and Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolic Research Institute, Beckman Research Institute, City of Hope, Duarte, CA
| | - Jun Xie
- Department of Molecular Medicine, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA
| | - Min Lin
- Department of Molecular Medicine, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA
| | - Lihua Jin
- Molecular and Cellular Biology of Cancer Program and Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolic Research Institute, Beckman Research Institute, City of Hope, Duarte, CA
| | - Jiawei Zhang
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yangmeng Wang
- Molecular and Cellular Biology of Cancer Program and Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolic Research Institute, Beckman Research Institute, City of Hope, Duarte, CA
| | - Mingjie Fan
- Molecular and Cellular Biology of Cancer Program and Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolic Research Institute, Beckman Research Institute, City of Hope, Duarte, CA
| | - Zhipeng Fang
- Molecular and Cellular Biology of Cancer Program and Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolic Research Institute, Beckman Research Institute, City of Hope, Duarte, CA
| | - Weini Li
- Molecular and Cellular Biology of Cancer Program and Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolic Research Institute, Beckman Research Institute, City of Hope, Duarte, CA
| | - Ching Ouyang
- Integrative Genomic Core, City of Hope National Medical Center, Duarte, CA
| | - David Kwon
- Department of Molecular Medicine, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA
| | - Natalie Que
- Eugene and Ruth Roberts Summer Student Academy, City of Hope, Duarte, CA
| | - Zhirou Li
- School of AI and Advanced Computing, Xi’an Jiaotong-Liverpool University, Suzhou, Jiangsu, China
| | - Jinge Mao
- School of AI and Advanced Computing, Xi’an Jiaotong-Liverpool University, Suzhou, Jiangsu, China
| | - Haonan Chen
- Eugene and Ruth Roberts Summer Student Academy, City of Hope, Duarte, CA
| | - Josephine Harris
- Molecular and Cellular Biology of Cancer Program and Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolic Research Institute, Beckman Research Institute, City of Hope, Duarte, CA
| | - Xiwei Wu
- Integrative Genomic Core, City of Hope National Medical Center, Duarte, CA
| | - Jun Wu
- Animal Tumor Model Core, City of Hope National Medical Center, Duarte, CA
| | - Hongwei Yin
- Department of Molecular Medicine, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA
| | - Wing C. Chan
- Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute, City of Hope, Duarte, CA
- Department of Pathology, City of Hope National Medical Center, Duarte, CA
| | - David Horne
- Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute, City of Hope, Duarte, CA
- Department of Molecular Medicine, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA
| | - Wendong Huang
- Molecular and Cellular Biology of Cancer Program and Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolic Research Institute, Beckman Research Institute, City of Hope, Duarte, CA
- Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute, City of Hope, Duarte, CA
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Lin M, Islamov B, Aleliūnas A, Armonienė R, Gorash A, Meigas E, Ingver A, Tamm I, Kollist H, Strazdiņa V, Bleidere M, Brazauskas G, Lillemo M. Genome-wide association analysis identifies a consistent QTL for powdery mildew resistance on chromosome 3A in Nordic and Baltic spring wheat. Theor Appl Genet 2024; 137:25. [PMID: 38240841 PMCID: PMC10799116 DOI: 10.1007/s00122-023-04529-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 12/14/2023] [Indexed: 01/22/2024]
Abstract
KEY MESSAGE QPm.NOBAL-3A is an important QTL providing robust adult plant powdery mildew resistance in Nordic and Baltic spring wheat, aiding sustainable crop protection and breeding. Powdery mildew, caused by the biotrophic fungal pathogen Blumeria graminis f. sp. tritici, poses a significant threat to bread wheat (Triticum aestivum L.), one of the world's most crucial cereal crops. Enhancing cultivar resistance against this devastating disease requires a comprehensive understanding of the genetic basis of powdery mildew resistance. In this study, we performed a genome-wide association study (GWAS) using extensive field trial data from multiple environments across Estonia, Latvia, Lithuania, and Norway. The study involved a diverse panel of recent wheat cultivars and breeding lines sourced from the Baltic region and Norway. We identified a major quantitative trait locus (QTL) on chromosome 3A, designated as QPm.NOBAL-3A, which consistently conferred high resistance to powdery mildew across various environments and countries. Furthermore, the consistency of the QTL haplotype effect was validated using an independent Norwegian spring wheat panel. Subsequent greenhouse seedling inoculations with 15 representative powdery mildew isolates on a subset of the GWAS panel indicated that this QTL provides adult plant resistance and is likely of race non-specific nature. Moreover, we developed and validated KASP markers for QPm.NOBAL-3A tailored for use in breeding. These findings provide a critical foundation for marker-assisted selection in breeding programs aimed at pyramiding resistance QTL/genes to achieve durable and broad-spectrum resistance against powdery mildew.
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Affiliation(s)
- Min Lin
- Department of Plant Sciences, Norwegian University of Life Sciences, Post Box 5003, NO-1432, ÅS, Norway
| | - Bulat Islamov
- Centre of Estonian Rural Research and Knowledge, J. Aamisepa 1, Jõgeva Alevik, 48309, Jõgeva Maakond, Estonia
| | - Andrius Aleliūnas
- Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, 58344, Akademija, Lithuania
| | - Rita Armonienė
- Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, 58344, Akademija, Lithuania
| | - Andrii Gorash
- Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, 58344, Akademija, Lithuania
| | - Egon Meigas
- Institute of Bioengineering, University of Tartu, Nooruse 1, 50411, Tartu, Estonia
| | - Anne Ingver
- Centre of Estonian Rural Research and Knowledge, J. Aamisepa 1, Jõgeva Alevik, 48309, Jõgeva Maakond, Estonia
| | - Ilmar Tamm
- Centre of Estonian Rural Research and Knowledge, J. Aamisepa 1, Jõgeva Alevik, 48309, Jõgeva Maakond, Estonia
| | - Hannes Kollist
- Institute of Bioengineering, University of Tartu, Nooruse 1, 50411, Tartu, Estonia
| | - Vija Strazdiņa
- Institute of Agricultural Resources and Economics, Zinatnes Iela 2, Cesis County, 4126, Latvia
| | - Māra Bleidere
- Institute of Agricultural Resources and Economics, Zinatnes Iela 2, Cesis County, 4126, Latvia
| | - Gintaras Brazauskas
- Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, 58344, Akademija, Lithuania
| | - Morten Lillemo
- Department of Plant Sciences, Norwegian University of Life Sciences, Post Box 5003, NO-1432, ÅS, Norway.
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Guo R, Yu Y, Huang Y, Lin M, Liao Y, Hu Y, Li Q, Peng C, Zhou J. A nomogram model combining ultrasound-based radiomics features and clinicopathological factors to identify germline BRCA1/2 mutation in invasive breast cancer patients. Heliyon 2024; 10:e23383. [PMID: 38169922 PMCID: PMC10758804 DOI: 10.1016/j.heliyon.2023.e23383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/18/2023] [Accepted: 12/01/2023] [Indexed: 01/05/2024] Open
Abstract
Objective BRCA1/2 status is a key to personalized therapy for invasive breast cancer patients. This study aimed to explore the association between ultrasound radiomics features and germline BRCA1/2 mutation in patients with invasive breast cancer. Materials and methods In this retrospective study, 100 lesions in 92 BRCA1/2-mutated patients and 390 lesions in 357 non-BRCA1/2-mutated patients were included and randomly assigned as training and validation datasets in a ratio of 7:3. Gray-scale ultrasound images of the largest plane of the lesions were used for feature extraction. Maximum relevance minimum redundancy (mRMR) algorithm and multivariate logistic least absolute shrinkage and selection operator (LASSO) regression were used to select features. The multivariate logistic regression method was used to construct predictive models based on clinicopathological factors, radiomics features, or a combination of them. Results In the clinical model, age at first diagnosis, family history of BRCA1/2-related malignancies, HER2 status, and Ki-67 level were found to be independent predictors for BRCA1/2 mutation. In the radiomics model, 10 significant features were selected from the 1032 radiomics features extracted from US images. The AUCs of the radiomics model were not inferior to those of the clinical model in both training dataset [0.712 (95% CI, 0.647-0.776) vs 0.768 (95% CI, 0.704-0.835); p = 0.429] and validation dataset [0.705 (95% CI, 0.597-0.808) vs 0.723 (95% CI, 0.625-0.828); p = 0.820]. The AUCs of the nomogram model combining clinical and radiomics features were 0.804 (95% CI, 0.748-0.861) in the training dataset and 0.811 (95% CI, 0.724-0.894) in the validation dataset, which were proved significantly higher than those of the clinical model alone by DeLong's test (p = 0.041; p = 0.007). To be noted, the negative predictive values (NPVs) of the nomogram model reached a favorable 0.93 in both datasets. Conclusion This machine nomogram model combining ultrasound-based radiomics and clinical features exhibited a promising performance in identifying germline BRCA1/2 mutation in patients with invasive breast cancer and may help avoid unnecessary gene tests in clinical practice.
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Affiliation(s)
| | | | - Yini Huang
- Department of Ultrasound, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, No. 651 Dongfeng Road East, Guangzhou, 510060, PR China
| | - Min Lin
- Department of Ultrasound, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, No. 651 Dongfeng Road East, Guangzhou, 510060, PR China
| | - Ying Liao
- Department of Ultrasound, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, No. 651 Dongfeng Road East, Guangzhou, 510060, PR China
| | - Yixin Hu
- Department of Ultrasound, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, No. 651 Dongfeng Road East, Guangzhou, 510060, PR China
| | - Qing Li
- Department of Ultrasound, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, No. 651 Dongfeng Road East, Guangzhou, 510060, PR China
| | - Chuan Peng
- Department of Ultrasound, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, No. 651 Dongfeng Road East, Guangzhou, 510060, PR China
| | - Jianhua Zhou
- Department of Ultrasound, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, No. 651 Dongfeng Road East, Guangzhou, 510060, PR China
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Xia LZ, Liu LL, Yue JZ, Lu ZY, Zheng J, Jiang MZ, Lin M, Liu J, Gao HT. Alleviative effect of quercetin against reproductive toxicity induced by chronic exposure to the mixture of phthalates in male rats. Ecotoxicol Environ Saf 2024; 270:115920. [PMID: 38171105 DOI: 10.1016/j.ecoenv.2023.115920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 12/21/2023] [Accepted: 12/29/2023] [Indexed: 01/05/2024]
Abstract
Phthalates (PEs) are widely used plasticizers in polymer products, and humans are increasingly exposed to them. This study was designed to investigate the alleviative effect of phytochemicals quercetin (Que) against male reproductive toxicity caused by the mixture of three commonly used PEs (MPEs), and further to explore the underlying mechanism. Forty-eight male SD rats were randomly and evenly divided into control group, Que group, MPEs group and MPEs+Que group (n = 12); The oral exposure doses of MPEs and Que were 450 mg/kg/d and 50 mg/kg/d, respectively. After 91 days of continuous intervention, compared with control group, the testes weight, epididymis weight, serum sex hormones, and anogenital distance were significantly decreased in MPEs group (P < 0.05); Testicular histopathological observation showed that all seminiferous tubules were atrophy, leydig cells were hyperplasia, spermatogenic cells growth were arrested in MPEs group. Ultrastructural observation of testicular germ cells showed that the edges of the nuclear membranes were indistinct, and the mitochondria were severely damaged with the cristae disrupted, decreased or even disappeared in MPEs group. Immunohistochemistry and Western blot analysis showed that testicular CYP11A1, CYP17A1 and 17β-HSD were up-regulated, while StAR, PIWIL1 and PIWIL2 were down-regulated in MPEs group (P < 0.05); However, the alterations of these parameters were restored in MPEs+Que group. The results indicated MPEs disturbed steroid hormone metabolism, and caused male reproductive injuries; whereas, Que could inhibit MPEs' male reproductive toxicity, which might relate to the restored regulation of steroid hormone metabolism.
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Affiliation(s)
- Ling-Zi Xia
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China
| | - Li-Lan Liu
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China
| | - Jun-Zhe Yue
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China
| | - Zhen-Yu Lu
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China; Zhejiang Provincial Key Laboratory of Watershed Science and Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Jie Zheng
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China
| | - Ming-Zhe Jiang
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China
| | - Min Lin
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China
| | - Jiaming Liu
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China; Zhejiang Provincial Key Laboratory of Watershed Science and Health, Wenzhou Medical University, Wenzhou 325035, China.
| | - Hai-Tao Gao
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China; Zhejiang Provincial Key Laboratory of Watershed Science and Health, Wenzhou Medical University, Wenzhou 325035, China; Wenzhou Municipal Key Laboratory of Neurodevelopmental Pathology and Physiology, Wenzhou Medical University, Wenzhou 325035, China.
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Cai C, Wang L, Chen Q, Lin M, Pan X, Chen W, Shi D, Chen Y. Association between hemoglobin A1c and abdominal aortic calcification: results from the National Health and Nutrition Examination Survey 2013-2014. BMC Cardiovasc Disord 2024; 24:26. [PMID: 38172671 PMCID: PMC10765683 DOI: 10.1186/s12872-023-03700-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 12/28/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Hemoglobin A1c (HbA1c), a "gold standard" for the assessment of glycemic control, was associated with an increased risk of cardiovascular disease and coronary artery calcification. However, its effects on abdominal aortic calcification (AAC) are uncertain. The present study comprehensively investigated the association between HbA1c and AAC in the 2013-2014 National Health and Nutrition Examinations Surveys. METHODS Among 1,799 participants ≥ 40 years, dual-energy X-ray absorptiometry-derived AAC was quantified using the Kauppila score (AAC-24). Severe AAC was defined as a total AAC-24 > 6. Weighted linear regression models and logistic regression models were used to determine the effects of HbA1c on AAC. The restricted cubic spline model was used for the dose-response analysis. RESULTS The mean AAC-24 of participants was 1.3, and 6.7% of them suffered from severe AAC. Both AAC-24 and the prevalence of severe AAC increased with the higher tertile of HbA1c (P < 0.001). Elevated HbA1c levels would increase the AAC-24 (β = 0.73, 95% CI: 0.30-1.16) and the risk of severe AAC (OR = 1.63, 95% CI: 1.29-2.06), resulting in nearly linear dose-response relationships in all participants. However, this positive correlation were not statistically significant when participants with diabetes were excluded. Furthermore, subgroup analysis showed significant interactions effect between HbA1c and hypertension on severe AAC with the OR (95% CI) of 2.35 (1.62-3.40) for normotensives and 1.39 (1.09-1.79) for hypertensives (P for interaction = 0.022). CONCLUSION Controlling HbA1c could reduce AAC scores and the risk of severe AAC. Glycemic management might be a component of strategies for preventing AAC among all participants, especially normotensives.
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Affiliation(s)
- Can Cai
- Scientific Research and Innovation Center, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, 361003, China
| | - Lingsong Wang
- Scientific Research and Innovation Center, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, 361003, China
| | - Quanyao Chen
- Scientific Research and Innovation Center, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, 361003, China
| | - Min Lin
- Scientific Research and Innovation Center, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, 361003, China
| | - Xiuming Pan
- Scientific Research and Innovation Center, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, 361003, China
| | - Weida Chen
- Scientific Research and Innovation Center, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, 361003, China
| | - Danni Shi
- Scientific Research and Innovation Center, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, 361003, China
| | - Yao Chen
- Scientific Research and Innovation Center, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, 361003, China.
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Lin J, Lin M, Du Q, Tu Y, Chen J. Involvement of aquaporin 5 and Na-K-2Cl cotransporter 1 in the pathogenesis of primary focal hyperhidrosis: evidence from the primary sweat gland cell culture. Am J Physiol Cell Physiol 2024; 326:C206-C213. [PMID: 38047298 DOI: 10.1152/ajpcell.00274.2023] [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: 06/27/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 12/05/2023]
Abstract
People with primary focal hyperhidrosis (PFH) usually have an overactive sympathetic nervous system, which can activate the sweat glands through the chemical messenger of acetylcholine. The role of aquaporin 5 (AQP5) and Na-K-2Cl cotransporter 1 (NKCC1) in PFH is still unknown. The relative mRNA and protein levels of AQP5 and NKCC1 in the sweat gland tissues of three subtypes of patients with PFH (primary palmar hyperhidrosis, PPH; primary axillary hyperhidrosis, PAH; and primary craniofacial hyperhidrosis, PCH) were detected with real-time PCR (qPCR) and Western blot. Primary sweat gland cells from healthy controls (NPFH-SG) were incubated with different concentrations of acetylcholine, and the relative mRNA and protein expression of AQP5 and NKCC1 were also detected. NPFH-SG cells were also transfected with si-AQP5 or shNKCC1, and acetylcholine stimulation-induced calcium transients were assayed with Fluo-3 AM calcium assay. Upregulated AQP5 and NKCC1 expression were observed in sweat gland tissues, and AQP5 demonstrated a positive Pearson correlation with NKCC1 in patients with PPH (r = 0.66, P < 0.001), patients with PAH (r = 0.71, P < 0.001), and patients with PCH (r = 0.62, P < 0.001). Upregulated AQP5 and NKCC1 expression were also detected in primary sweat gland cells derived from three subtypes of patients with PFH when compared with primary sweat gland cells derived from healthy control. Acetylcholine stimulation could induce the upregulated AQP5 and NKCC1 expression in NPFH-SG cells, and AQP5 or NKCC1 inhibitions attenuated the calcium transients induced by acetylcholine stimulation in NPFH-SG cells. The dependence of ACh-stimulated calcium transients on AQP5 and NKCC1 expression may be involved in the development of PFH.NEW & NOTEWORTHY The dependence of ACh-stimulated calcium transients on AQP5 and Na-K-2Cl cotransporter 1 (NKCC1) expression may be involved in the development of primary focal hyperhidrosis (PFH).
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Affiliation(s)
- Jianbo Lin
- Department of Thoracic Surgery, First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China
- Department of Thoracic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
| | - Min Lin
- Department of Thoracic Surgery, First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China
- Department of Thoracic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
| | - Quan Du
- Department of Thoracic Surgery, First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China
- Department of Thoracic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
| | - Yuanrong Tu
- Department of Thoracic Surgery, First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China
- Department of Thoracic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
| | - Jianfeng Chen
- Department of Thoracic Surgery, First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China
- Department of Thoracic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
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Wu L, Yang Y, Lin M, Wang H, Li L, Wu H, Wang X, Yan M. Unraveling the anti-primary dysmenorrhea mechanism of Ainsliaea fragrans Champ. extract by the integrative approach of network pharmacology and experimental verification. Phytomedicine 2024; 123:155213. [PMID: 37980805 DOI: 10.1016/j.phymed.2023.155213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 11/01/2023] [Accepted: 11/09/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND The plant Ainsliaea fragrans Champ. (A. fragrans) named "Xingxiang Tuerfeng", is a traditional herb with a long history of therapeutic practice in southern China in the treatment of gynecological diseases. PURPOSE The anti-inflammatory extract of Ainsliaea fragrans Champ. (AF-ext) exhibited anti-primary dysmenorrhea (PD) activity in oxytocin-induced mice. This study aimed to unravel the underlying mechanisms of AF-ext on PD by the integrative approach of network pharmacology and experimental verification. METHODS First, the therapeutic targets of AF-ext are predicted using network pharmacology and molecular docking methods. Second, activity screening and immunoblotting methods were used for target validation. Then, the therapeutic effect of AF-ext on PD was evaluated using oxytocin-induced mice and uterine strips model. RESULTS AF-p1, and AF-p2, the active ingredients of AF-ext, showed inhibitory effects on COX1/2 and EGFR, and all five active components showed antagonistic activity on TRPV1. AF-ext (25, 50, 100 mg/kg) could significantly reduce the number of writhing times and prolong writhing latencies in a dose-dependent manner. AF-ext inhibited spasmolytic activity in uterine strips induced by oxytocin and Ca2+ stimulation. AF-ext inhibited NF-κB/COX-2/PG pathway and activation of the NLRP3 inflammasome in PD mice. It significantly downregulated the PD-induced overexpression of p-p65/p65, p-IκBα, and COX-2 by inhibiting the NF-κB pathway. Moreover, the overexpression of NLRP3, p20/pro-Caspase 1, and p17/pro-IL-1β was greatly downregulated. CONCLUSIONS AF-ext demonstrated anti-inflammatory, analgesic, and spasmolytic activity in the treatment of PD. It inhibited the NF-κB/COX-2/PG pathway and NLRP3 inflammasome activation in PD mice with a multi-target approach.
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Affiliation(s)
- Liang Wu
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, Jiangsu Province, China; Shenzhen Research Institute of China, Pharmaceutical University, Shenzhen 518057, China
| | - Ying Yang
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, Jiangsu Province, China
| | - Min Lin
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, Jiangsu Province, China
| | - Haiqing Wang
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, Jiangsu Province, China
| | - Luqian Li
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, Jiangsu Province, China
| | - Haixia Wu
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, Jiangsu Province, China
| | - Xue Wang
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, Jiangsu Province, China
| | - Ming Yan
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, Jiangsu Province, China.
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Lin M, Qiao W, Ren L, Sun Y, Zhang J, Dong R. Determination of effects of thermophilic and hyperthermophilic temperatures on anaerobic hydrolysis and acidogenesis of pig manure through a one-year study. Bioresour Technol 2024; 391:129890. [PMID: 37858802 DOI: 10.1016/j.biortech.2023.129890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 10/01/2023] [Accepted: 10/16/2023] [Indexed: 10/21/2023]
Abstract
Improving hydrolysis and acidogenesis through thermophilic and hyperthermophilic temperatures is critical for enhancing the anaerobic decomposition of organic waste like pig manure. However, whether higher temperatures can provide more enhanced performance has not been elucidated experimentally. This study, therefore, conducted a 375-day continuous operation experiment at 55 and 70 °C with a 5-day hydraulic retention time. The two temperature reactors entered a stable state after about 200 days and long-term microbial acclimation markedly changed their performances. In the thermophilic and hyperthermophilic reactor, the hydrolysis efficiencies were obtained at 29.7 % and 27.3 % respectively, whereas the acidogenesis efficiency was relatively low at 1.0 % and 3.1 %. Due to the occurrence of methanogenesis, the volatile fatty acid concentration in the thermophilic reactor was only 45 % of that in the hyperthermophilic reactor. The thermophilic reactor exhibited higher bacterial diversity; however, this difference between the two reactors apparently did not correlate with hydrolysis and acidogenesis performance.
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Affiliation(s)
- Min Lin
- College of Engineering, China Agricultural University, Beijing 100083, China; Sanya Institute of China Agricultural University, Sanya, Hainan Province 572025, China
| | - Wei Qiao
- College of Engineering, China Agricultural University, Beijing 100083, China; Sanya Institute of China Agricultural University, Sanya, Hainan Province 572025, China.
| | - Lijuan Ren
- College of Engineering, China Agricultural University, Beijing 100083, China; Sanya Institute of China Agricultural University, Sanya, Hainan Province 572025, China
| | - Yibo Sun
- College of Engineering, China Agricultural University, Beijing 100083, China; Sanya Institute of China Agricultural University, Sanya, Hainan Province 572025, China
| | - Jiahao Zhang
- College of Engineering, China Agricultural University, Beijing 100083, China; Sanya Institute of China Agricultural University, Sanya, Hainan Province 572025, China
| | - Renjie Dong
- College of Engineering, China Agricultural University, Beijing 100083, China
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Tao J, Deng P, Lin M, Chen C, Ma Q, Yang L, Zhang W, Luo Y, Chen S, Pi H, Zhou Z, Yu Z. Long-term exposure to polystyrene microplastics induces hepatotoxicity by altering lipid signatures in C57BL/6J mice. Chemosphere 2024; 347:140716. [PMID: 37979802 DOI: 10.1016/j.chemosphere.2023.140716] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 10/23/2023] [Accepted: 11/12/2023] [Indexed: 11/20/2023]
Abstract
It is estimated that the life of plastics is hundreds to thousands of years, their lasting properties making plastic debris absorbing toxic chemicals and degrading into microplastics (MPs). The purpose of this study was to explore the effects of exposure to different size (0.08 and 0.5 μm) polystyrene (PS) in mice. After 16 weeks of exposure, it was found that PS-MPs could be identified in the liver. No effect of PS-MPs treatment on body weight was observed. PS-MPs exposure disturbed lipids and lipid-like molecule metabolisms and perturbed the citrate cycle and oxidative phosphorylation. Meanwhile, isocitrate dehydrogenase (ICDHc), nicotinamide adenine dinucleotide -malate dehydrogenase (NAD-MDH), succinate dehydrogenase (SDH), α ketoglutarate dehydrogenase (α-KGDH) activities and adenosine triphosphate (ATP) level were obviously affected by PS-MPs treatment. In addition, significant differences were recorded in catalase (CAT) and malondialdehyde (MDA) levels, indicating that PS-MPs exposure induced an oxidative stress in the liver. In conclusion, our present study provided the first evidence of: (a) long-term exposure to PS-MPs lead to PS-MPs accumulated in the liver and results in liver injury; (b) long-term exposure to PS-MPs disturbs lipids and lipid-like molecule metabolisms; (c) long-term exposure to PS-MPs perturbs citrate cycle and oxidative phosphorylation and leads to oxidative stress in the liver.
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Affiliation(s)
- Jiawen Tao
- Department of Occupational Health, Army Medical University, Chongqing, 400038, China
| | - Ping Deng
- Department of Occupational Health, Army Medical University, Chongqing, 400038, China
| | - Min Lin
- Department of Occupational Health, Army Medical University, Chongqing, 400038, China
| | - Chunhai Chen
- Department of Occupational Health, Army Medical University, Chongqing, 400038, China
| | - Qinlong Ma
- Department of Occupational Health, Army Medical University, Chongqing, 400038, China
| | - Lingling Yang
- Department of Occupational Health, Army Medical University, Chongqing, 400038, China
| | - Wenjuan Zhang
- Department of Occupational Health, Army Medical University, Chongqing, 400038, China
| | - Yan Luo
- Department of Occupational Health, Army Medical University, Chongqing, 400038, China
| | - Siyu Chen
- Department of Occupational Health, Army Medical University, Chongqing, 400038, China
| | - Huifeng Pi
- Department of Occupational Health, Army Medical University, Chongqing, 400038, China
| | - Zhou Zhou
- Center for Neurointelligence, School of Medicine, Chongqing University, Chongqing, 400030, China; Department of Environmental Medicine, School of Public Health, and Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Zhengping Yu
- Department of Occupational Health, Army Medical University, Chongqing, 400038, China.
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Zhu M, Wang D, Wang W, Meng Y, Lin M. [Construction of prediction model of severe acute pancreatitis based on serum soluble T cell immunogloblulin and mucin domain-containing protein 3]. Zhonghua Wei Zhong Bing Ji Jiu Yi Xue 2024; 36:67-72. [PMID: 38404275 DOI: 10.3760/cma.j.cn121430-20230128-00041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
OBJECTIVE To investigate the predictive value of the model based on soluble T cell immunogloblulin and mucin domain-containing protein 3 (sTIM3) for the progression of severe acute pancreatitis (SAP) in patients with acute pancreatitis (AP). METHODS A retrospective cohort study was conducted. The AP patients admitted to Changzhou First People's Hospital and Changzhou Second People's Hospital from June 1, 2020 to June 30, 2022 were enrolled. Mild AP (MAP) and moderately severe AP (MSAP) patients were classified as non-SAP group, and SAP patients were classified as SAP group according to the progression of AP patients during hospitalization. The basic data, blood biological indicators, serum sTIM3 level, bedside index for severity in acute pancreatitis (BISAP), acute physiology and chronic health evaluation II (APACHE II) score, modified computed tomography severity index (MCTSI) score within 48 hours of admission, and prognosis indicators were collected. Multivariate Logistic regression analysis was conducted to analyze the risk factors of the progression of SAP in patients with AP during hospitalization. Based on the results of multivariate analysis and the best parameters selected based on the minimal Akaike information criterion (AIC), the SAP prediction model based on sTIM3 was constructed. The receive operator characteristic curve (ROC curve) was plotted to analyze the predictive efficacy of the model. RESULTS A total of 99 AP patients were enrolled, 80 patients in the non-SAP group and 19 patients in the SAP group. Compared with the non-SAP group, body mass index (BMI), drinking history ratio, heart rate (HR), respiration rate (RR), white blood cell count (WBC), red blood cell count (RBC), C-reactive protein (CRP), alanine aminotransferase (ALT), serum creatinine (SCr), procalcitonin (PCT), interleukin-6 (IL-6), sTIM3, BISAP score, APACHE II score and MCTSI score were significantly increased, and pulse oxygen saturation (SpO2), direct bilirubin (DBil) and IL-10 were significantly decreased. The length of intensive care unit (ICU) stay and total length of hospital stay of patients in the SAP group were significantly longer than those in the non-SAP group [length of ICU stay (days): 1.0 (0, 1.5) vs. 0 (0, 0), total length of hospital stay (days): 17.11±9.39 vs. 8.40±3.08, both P < 0.01]. Multivariate Logistic regression analysis showed that HR [odds ratio (OR) = 1.059, 95% confidence interval (95%CI) was 1.010-1.110, P = 0.017], DBil (OR = 0.981, 95%CI was 0.950-0.997, P = 0.043), and sTIM3 (OR = 1.002, 95%CI was 1.001-1.003, P = 0.027) were independent risk factors for predicting the progression of SAP in patients with AP, and the SAP prediction model based on sTIM3 was constructed: Logit(P) = -14.602+0.187×BMI+0.057×HR+0.006×CRP-0.020×DBil+0.002×sTIM3. ROC curve analysis showed that among the aforementioned single factor quantitative indicators, IL-6 was the most effective in predicting the progression of AP patients to SAP during hospitalization, but the predictive performance of prediction model based on the sTIM3 was significantly better than IL-6 [area under the ROC curve (AUC) and 95%CI: 0.957 (0.913-1.000) vs. 0.902 (0.845-0.958), P < 0.05]. CONCLUSIONS The model based on serum sTIM3 demonstrated good predictive value for the progression of SAP in patients with AP.
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Affiliation(s)
- Minghui Zhu
- Department of Emergency Medicine, Changzhou First People's Hospital, Changzhou 213000, Jiangsu, China
| | - Daming Wang
- Department of Emergency Medicine, Changzhou First People's Hospital, Changzhou 213000, Jiangsu, China
| | - Wenlong Wang
- Department of Emergency Medicine, Changzhou First People's Hospital, Changzhou 213000, Jiangsu, China
| | - Yao Meng
- Department of Gastroenterology, Changzhou Second People's Hospital, Changzhou 213000, Jiangsu, China. Corresponding author: Lin Min,
| | - Min Lin
- Department of Gastroenterology, Changzhou Second People's Hospital, Changzhou 213000, Jiangsu, China. Corresponding author: Lin Min,
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Guo Q, Zhan Y, Zhang W, Wang J, Yan Y, Wang W, Lin M. Development and Regulation of the Extreme Biofilm Formation of Deinococcus radiodurans R1 under Extreme Environmental Conditions. Int J Mol Sci 2023; 25:421. [PMID: 38203592 PMCID: PMC10778927 DOI: 10.3390/ijms25010421] [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: 11/08/2023] [Revised: 12/22/2023] [Accepted: 12/24/2023] [Indexed: 01/12/2024] Open
Abstract
To grow in various harsh environments, extremophiles have developed extraordinary strategies such as biofilm formation, which is an extremely complex and progressive process. However, the genetic elements and exact mechanisms underlying extreme biofilm formation remain enigmatic. Here, we characterized the biofilm-forming ability of Deinococcus radiodurans in vitro under extreme environmental conditions and found that extremely high concentrations of NaCl or sorbitol could induce biofilm formation. Meantime, the survival ability of biofilm cells was superior to that of planktonic cells in different extreme conditions, such as hydrogen peroxide stress, sorbitol stress, and high UV radiation. Transcriptome profiles of D. radiodurans in four different biofilm development stages further revealed that only 13 matched genes, which are involved in environmental information processing, carbohydrate metabolism, or stress responses, share sequence homology with genes related to the biofilm formation of Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus. Overall, 64% of the differentially expressed genes are functionally unknown, indicating the specificity of the regulatory network of D. radiodurans. The mutation of the drRRA gene encoding a response regulator strongly impaired biofilm formation ability, implying that DrRRA is an essential component of the biofilm formation of D. radiodurans. Furthermore, transcripts from both the wild type and the drRRA mutant were compared, showing that the expression of drBON1 (Deinococcus radioduransBON domain-containing protein 1) significantly decreased in the drRRA mutant during biofilm development. Further analysis revealed that the drBON1 mutant lacked the ability to form biofilm and DrRRA, and as a facilitator of biofilm formation, could directly stimulate the transcription of the biofilm-related gene drBON1. Overall, our work highlights a molecular mechanism mediated by the response regulator DrRRA for controlling extreme biofilm formation and thus provides guidance for future studies to investigate novel mechanisms that are used by D. radiodurans to adapt to extreme environments.
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Affiliation(s)
- Qiannan Guo
- National Key Laboratory of Agricultural Microbiology, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Q.G.); (Y.Z.); (W.Z.); (J.W.); (Y.Y.); (W.W.)
- Key Laboratory of Agricultural Microbiome (MARA), Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yuhua Zhan
- National Key Laboratory of Agricultural Microbiology, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Q.G.); (Y.Z.); (W.Z.); (J.W.); (Y.Y.); (W.W.)
- Key Laboratory of Agricultural Microbiome (MARA), Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Wei Zhang
- National Key Laboratory of Agricultural Microbiology, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Q.G.); (Y.Z.); (W.Z.); (J.W.); (Y.Y.); (W.W.)
- Key Laboratory of Agricultural Microbiome (MARA), Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jin Wang
- National Key Laboratory of Agricultural Microbiology, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Q.G.); (Y.Z.); (W.Z.); (J.W.); (Y.Y.); (W.W.)
- Key Laboratory of Agricultural Microbiome (MARA), Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yongliang Yan
- National Key Laboratory of Agricultural Microbiology, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Q.G.); (Y.Z.); (W.Z.); (J.W.); (Y.Y.); (W.W.)
- Key Laboratory of Agricultural Microbiome (MARA), Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Wenxiu Wang
- National Key Laboratory of Agricultural Microbiology, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Q.G.); (Y.Z.); (W.Z.); (J.W.); (Y.Y.); (W.W.)
- Key Laboratory of Agricultural Microbiome (MARA), Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Min Lin
- National Key Laboratory of Agricultural Microbiology, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Q.G.); (Y.Z.); (W.Z.); (J.W.); (Y.Y.); (W.W.)
- Key Laboratory of Agricultural Microbiome (MARA), Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Lin M, Dan H. Design of a novel affinity probe using the cell wall-binding domain of a Listeria monocytogenes autolysin for pathogen detection. Microbiol Spectr 2023; 11:e0535622. [PMID: 37795989 PMCID: PMC10714868 DOI: 10.1128/spectrum.05356-22] [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: 12/30/2022] [Accepted: 06/18/2023] [Indexed: 10/06/2023] Open
Abstract
IMPORTANCE Human listeriosis is caused by consuming foods contaminated with the bacterial pathogen Listeria monocytogenes, leading to the development of a severe and life-threatening foodborne illness. Detection of L. monocytogenes present in food and food processing environments is crucial for preventing Listeria infection. The L. monocytogenes peptidoglycan hydrolase IspC anchors non-covalently to the bacterial surface through its C-terminal cell wall-binding domain (CWBD), CWBDIspC. This study explored the surface binding property of CWBDIspC to design, construct, characterize, and assess an affinity molecular probe for detecting L. monocytogenes. CWBDIspC recognized a cell wall ligand lipoteichoic acid that remains evenly displayed and mostly unoccupied on the bacterial surface for interaction with the exogenously added CWBDIspC. CWBDIspC, when fused to the enhanced green fluorescent protein reporter or covalently conjugated onto magnetic beads, exhibited the functionality as an antibody alternative for rapid detection and efficient separation of the pathogen.
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Affiliation(s)
- Min Lin
- Ottawa Laboratory (Fallowfield), Canadian Food Inspection Agency, Ottawa, Ontario, Canada
- Department of Biochemistry Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Hanhong Dan
- Ottawa Laboratory (Fallowfield), Canadian Food Inspection Agency, Ottawa, Ontario, Canada
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Xue H, Guo Q, Yu A, Lin M, Chen X, Xu L. Genetic analysis of chorionic villus tissues in early missed abortions. Sci Rep 2023; 13:21719. [PMID: 38081877 PMCID: PMC10713591 DOI: 10.1038/s41598-023-48358-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 11/25/2023] [Indexed: 12/18/2023] Open
Abstract
Chromosomal abnormalities are the most common etiology of early spontaneous miscarriage. However, traditional karyotyping of chorionic villus samples (CVSs) is limited by cell culture and its low resolution. The objective of our study was to investigate the efficiency of molecular karyotyping technology for genetic diagnosis of early missed abortion tissues. Chromosome analysis of 1191 abortion CVSs in early pregnancy was conducted from August 2016 to June 2021; 463 cases were conducted via copy-number variations sequencing (CNV-seq)/quantitative fluorescent-polymerase chain reaction (QF-PCR) and 728 cases were conducted using SNP array. Clinically significant CNVs of CVSs were identified to clarify the cause of miscarriage and to guide the couples' subsequent pregnancies. Among these, 31 cases with significant maternal cell contamination were removed from the study. Among the remaining 1160 samples, 751 cases (64.7%) with genetic abnormalities were identified, of which, 531 (45.8%) were single aneuploidies, 31 (2.7%) were multiple aneuploidies, 50 (4.3%) were polyploidies, 54 (4.7%) were partial aneuploidies, 77 (6.6%) had submicroscopic CNVs (including 25 with clinically significant CNVs and 52 had variants of uncertain significance), and 8 cases (0.7%) were uniparental disomies. Our study suggests that both SNP array and CNV-seq/QF-PCR are reliable, robust, and high-resolution technologies for genetic diagnosis of miscarriage.
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Affiliation(s)
- Huili Xue
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Gulou District, No. 18 Daoshan Road, Fuzhou, 350001, Fujian, China.
| | - Qun Guo
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Gulou District, No. 18 Daoshan Road, Fuzhou, 350001, Fujian, China
| | - Aili Yu
- Reproductive Medicine Center, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Gulou District, No. 18 Daoshan Road, Fuzhou, 350001, Fujian, China
| | - Min Lin
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Gulou District, No. 18 Daoshan Road, Fuzhou, 350001, Fujian, China
| | - Xuemei Chen
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Gulou District, No. 18 Daoshan Road, Fuzhou, 350001, Fujian, China
| | - Liangpu Xu
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Gulou District, No. 18 Daoshan Road, Fuzhou, 350001, Fujian, China.
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Lin M, Wu YF, Liu ZQ, Liang C, Li QH, Liu TL. Rhodium(III)-catalyzed three-component C(sp 2)-H activation for the synthesis of amines. Chem Commun (Camb) 2023; 59:14431-14434. [PMID: 37982153 DOI: 10.1039/d3cc04665f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
Rhodium-catalyzed three-component C-H bond activation of aromatics with amides and aldehydes to synthesize amines was established. The addition of copper was found to be essential to ensure the high reactivity. The mechanistic studies indicated that key intermediates formed by the transmetallization between rhodium and copper could further promote the addition between 2-(pyridin-2-yl)-phenyl-metal species and imines. A series of densely substituted amines could be conveniently prepared by this one-step, three-component procedure from commercially available substrates via C-H bond activation with water as the only by-product.
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Affiliation(s)
- Min Lin
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Yu-Fei Wu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Zheng-Qiang Liu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Cheng Liang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Qing-Hua Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Tang-Lin Liu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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Li S, Li P, Li X, Wen N, Wang Y, Lu W, Lin M, Lang Z. In maize, co-expression of GAT and GR79-EPSPS provides high glyphosate resistance, along with low glyphosate residues. aBIOTECH 2023; 4:277-290. [PMID: 38106436 PMCID: PMC10721750 DOI: 10.1007/s42994-023-00114-8] [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] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 08/01/2023] [Indexed: 12/19/2023]
Abstract
Herbicide tolerance has been the dominant trait introduced during the global commercialization of genetically modified (GM) crops. Herbicide-tolerant crops, especially glyphosate-resistant crops, offer great advantages for weed management; however, despite these benefits, glyphosate-resistant maize (Zea mays L.) has not yet been commercially deployed in China. To develop a new bio-breeding resource for glyphosate-resistant maize, we introduced a codon-optimized glyphosate N-acetyltransferase gene, gat, and the enolpyruvyl-shikimate-3-phosphate synthase gene, gr79-epsps, into the maize variety B104. We selected a genetically stable high glyphosate resistance (GR) transgenic event, designated GG2, from the transgenic maize population through screening with high doses of glyphosate. A molecular analysis demonstrated that single copy of gat and gr79-epsps were integrated into the maize genome, and these two genes were stably transcribed and translated. Field trials showed that the transgenic event GG2 could tolerate 9000 g acid equivalent (a.e.) glyphosate per ha with no effect on phenotype or yield. A gas chromatography-mass spectrometry (GC-MS) analysis revealed that, shortly after glyphosate application, the glyphosate (PMG) and aminomethylphosphonic acid (AMPA) residues in GG2 leaves decreased by more than 90% compared to their levels in HGK60 transgenic plants, which only harbored the epsps gene. Additionally, PMG and its metabolic residues (AMPA and N-acetyl-PMG) were not detected in the silage or seeds of GG2, even when far more than the recommended agricultural dose of glyphosate was applied. The co-expression of gat and gr79-epsps, therefore, confers GG2 with high GR and a low risk of herbicide residue accumulation, making this germplasm a valuable GR event in herbicide-tolerant maize breeding. Supplementary Information The online version contains supplementary material available at 10.1007/s42994-023-00114-8.
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Affiliation(s)
- Shengyan Li
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Pengcheng Li
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiangyin Li
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ning Wen
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yinxiao Wang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wei Lu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Min Lin
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhihong Lang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, Hainan China
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