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Cai Z, Kong W. Advances in GPCRs: structure, mechanisms, disease, and pharmacology. Am J Physiol Cell Physiol 2024; 326:C1291-C1292. [PMID: 38525538 DOI: 10.1152/ajpcell.00172.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 03/19/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024]
Affiliation(s)
- Zeyu Cai
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, People's Republic of China
- State Key Laboratory of Vascular Homoeostasis and Remodeling, Peking University, Beijing, People's Republic of China
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, People's Republic of China
- State Key Laboratory of Vascular Homoeostasis and Remodeling, Peking University, Beijing, People's Republic of China
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Zhu Y, Ye X, Wu Y, Shen H, Cai Z, Xia F, Min W, Hou Y, Wang L, Wang X, Xiao Y, Yang P. Design, Synthesis, and Biological Evaluation of Novel EGFR PROTACs Targeting C797S Mutation. J Med Chem 2024. [PMID: 38676656 DOI: 10.1021/acs.jmedchem.4c00107] [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: 04/29/2024]
Abstract
The epidermal growth factor receptor (EGFR) tertiary C797S mutation is an important cause of resistance to Osimertinib, which seriously hinders the clinical application of Osimertinib. Developing proteolysis-targeting chimeras (PROTACs) targeting EGFR mutants can offer a promising strategy to overcome drug resistance. In this study, some novel PROTACs targeting C797S mutation were designed and synthesized based on a new EGFR inhibitor and displayed a potent degradation effect in H1975-TM cells harboring EGFRL858R/T790M/C797S. The representative compound C6 exhibited a DC50 of 10.2 nM against EGFRL858R/T790M/C797S and an IC50 of 10.3 nM against H1975-TM. Furthermore, C6 also showed potent degradation activity against various main EGFR mutants, including EGFRDel19/T790M/C797S. Mechanistic studies revealed that the protein degradation was achieved through the ubiquitin-proteasome system. Finally, C6 inhibited tumor growth in the H1975-TM xenograft tumor model effectively and safely. This study identifies a novel and potent EGFR PROTAC to overcome Osimertinib resistance mediated by C797S mutation.
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Affiliation(s)
- Yasheng Zhu
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Xiuquan Ye
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yuxing Wu
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Hao Shen
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Zeyu Cai
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Fei Xia
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Wenjian Min
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Yi Hou
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Liping Wang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Xiao Wang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Yibei Xiao
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Chongqing Innovation Institute of China Pharmaceutical University, Chongqing 401135, China
| | - Peng Yang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
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Li S, Wang Z, Li Z, Xie S, Shan X, Cai Z. Intraosseous schwannoma of the mandible: new case series, literature update, and proposal of a classification. Int J Oral Maxillofac Surg 2024; 53:205-211. [PMID: 37716827 DOI: 10.1016/j.ijom.2023.08.006] [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: 06/03/2023] [Revised: 08/15/2023] [Accepted: 08/29/2023] [Indexed: 09/18/2023]
Abstract
Intraosseous schwannoma of the mandible is rare, with diagnostic and therapeutic challenges. The aims of this study were to report new cases of intraosseous schwannoma of the mandible and to propose a clinical classification, providing suggestions for treatment methods. The cases of 13 patients treated at the authors' hospital and 86 cases reported previously in the literature were reviewed. The most common clinical feature was facial swelling (60/93). The rate of cortical thinning or expansion was 44.8% (43/96); widening of the inferior alveolar nerve canal on radiographs was observed in 15 patients.
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Affiliation(s)
- S Li
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Haidian District, Beijing, PR China
| | - Z Wang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Haidian District, Beijing, PR China
| | - Z Li
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Haidian District, Beijing, PR China
| | - S Xie
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Haidian District, Beijing, PR China
| | - X Shan
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Haidian District, Beijing, PR China
| | - Z Cai
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Haidian District, Beijing, PR China.
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Yu H, Huang Y, Cai Z, Huang K, Yu T, Lan H, Zhang Q, Wu L, Luo H. Tumor Microenvironment-Sensitive Ca 2+ Nanomodulator Combined with the Sonodynamic Process for Enhanced Cancer Therapy. ACS Appl Mater Interfaces 2024; 16:8275-8288. [PMID: 38334437 DOI: 10.1021/acsami.3c14865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Tumor therapy presents significant challenges, and conventional treatments exhibit limited therapeutic effectiveness. Imbalance of calcium homeostasis as a key cause of tumor cell death has been extensively studied in tumor therapy. Calcium overload therapy has garnered significant interest as a new cancer treatment strategy. This study involves the synthesis of a transformable nanosonosensitizer with a shell of a calcium ion nanomodulator. The nanosystem is designed to induce mitochondrial dysfunction by combining the calcium ion nanomodulator, nanosonosensitizer, and chemotherapeutic drug. Under ultrasound-activated conditions, CaCO3 dissolves in the tumor microenvironment, causing the nanosonosensitizer to switch from the "off" to the "on" state of ROS generation, exacerbating mitochondrial calcium overload. A two-dimensional Ti3C2/TiO2 heterostructure generates reactive oxygen species (ROS) under ultrasound and exhibits an efficient sonodynamic effect, enhancing calcium overload. Under ultrasound irradiation, Ti3C2/TiO2@CaCO3/KAE causes multilevel damage to mitochondria by combining the effects of rapid Ca2+ release, inhibiting Ca2+ efflux, enhancing tumor inhibition, and converting a "cold" tumor into a "hot" tumor. Therefore, this study proposes a method to effectively combine mitochondrial Ca2+ homeostasis and sonodynamic therapy (SDT) by the preparing pH-sensitive, double-activated, and multifunctional Ti3C2/TiO2-based nanosystems for cancer therapy.
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Affiliation(s)
- Hailing Yu
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, No. 52 of Meihuadong Road, Xiangzhou District, Zhuhai, Guangdong 519099, China
| | - Yongquan Huang
- Department of Ultrasound, The Fifth Affiliated Hospital, Sun Yat-sen University, No. 52 of Meihuadong Road, Xiangzhou District, Zhuhai, Guangdong 519099, China
| | - Zeyu Cai
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, No. 52 of Meihuadong Road, Xiangzhou District, Zhuhai, Guangdong 519099, China
| | - Kaichen Huang
- Department of clinical laboratory, The Third People's Hospital of Zhuhai, No.166 of Hezheng Road, Xiangzhou District, Zhuhai, Guangdong 519075, China
| | - Ting Yu
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, No. 52 of Meihuadong Road, Xiangzhou District, Zhuhai, Guangdong 519099, China
| | - Huimin Lan
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, No. 52 of Meihuadong Road, Xiangzhou District, Zhuhai, Guangdong 519099, China
| | - Qianqian Zhang
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, No. 52 of Meihuadong Road, Xiangzhou District, Zhuhai, Guangdong 519099, China
| | - Lili Wu
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, No.1 of Shida South Road, Limin Economic and Development District, Harbin, Heilongjiang 150500, China
| | - Hui Luo
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, No. 52 of Meihuadong Road, Xiangzhou District, Zhuhai, Guangdong 519099, China
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Yuan XL, Wu YB, Song XL, Chen Y, Lu Y, Lai XY, Shi JM, Liu LZ, Zhao YM, Yu J, Yang LX, Lan JP, Cai Z, Huang H, Luo Y. [Efficacy and prognostic factors of allogeneic hematopoietic stem cell transplantation in the treatment of secondary acute myeloid leukemia]. Zhonghua Xue Ye Xue Za Zhi 2024; 45:41-47. [PMID: 38527837 DOI: 10.3760/cma.j.cn121090-20230929-00151] [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: 03/27/2024]
Abstract
Objective: To evaluate the efficacy and prognostic factors of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in patients with secondary acute myeloid leukemia (sAML) . Methods: In this multicenter, retrospective clinical study, adult patients aged ≥18 years who underwent allo-HSCT for sAML at four centers of the Zhejiang Hematopoietic Stem Cell Transplantation Collaborative Group from January 2014 to November 2022 were included, and the efficacy and prognostic factors of allo-HSCT were analyzed. Results: A total of 95 patients were enrolled; 66 (69.5%) had myelodysplastic syndrome-acute myeloid leukemia (MDS-AML) , 4 (4.2%) had MDS/MPN-AML, and 25 (26.3%) had therapy-related AML (tAML) . The 3-year CIR, LFS, and overall survival (OS) rates were 18.6% (95% CI 10.2%-27.0%) , 70.6% (95% CI 60.8%-80.4%) , and 73.3% (95% CI 63.9%-82.7%) , respectively. The 3-year CIRs of the M-AML group (including MDS-AML and MDS/MPN-AML) and the tAML group were 20.0% and 16.4%, respectively (P=0.430) . The 3-year LFSs were 68.3% and 75.4%, respectively (P=0.176) . The 3-year OS rates were 69.7% and 75.4%, respectively (P=0.233) . The 3-year CIRs of the groups with and without TP53 mutations were 60.0% and 13.7%, respectively (P=0.003) ; the 3-year LFSs were 20.0% and 76.5%, respectively (P=0.002) ; and the 3-year OS rates were 40.0% and 77.6%, respectively (P=0.002) . According to European LeukmiaNet 2022 (ELN2022) risk stratification, the 3-year CIRs of patients in the low-, intermediate-, and high-risk groups were 8.3%, 17.8%, and 22.6%, respectively (P=0.639) . The three-year LFSs were 91.7%, 69.5%, and 65.6%, respectively (P=0.268) . The 3-year OS rates were 91.7%, 71.4%, and 70.1%, respectively (P=0.314) . Multivariate analysis revealed that advanced disease at allo-HSCT and TP53 mutations were independent risk factors for CIR, LFS, and OS. Conclusion: There was no significant difference in the prognosis of patients who underwent allo-HSCT among the MDS-AML, MDS/MPN-AML, and tAML groups. Advanced disease at transplantation and TP53 mutations were poor prognostic factors. ELN2022 risk stratification had limited value for predicting the prognosis of patients with sAML following allo-HSCT.
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Affiliation(s)
- X L Yuan
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - Y B Wu
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - X L Song
- Zhejiang Provincial People's Hospital, Hangzhou 310014, China
| | - Y Chen
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China
| | - Y Lu
- People's Hospital Affiliated to Ningbo University, Ningbo 315000, China
| | - X Y Lai
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - J M Shi
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - L Z Liu
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - Y M Zhao
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - J Yu
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - L X Yang
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - J P Lan
- Zhejiang Provincial People's Hospital, Hangzhou 310014, China
| | - Z Cai
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - H Huang
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - Y Luo
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
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Chen B, Chen Q, Liu Y, Chen J, Zhou X, Wang H, Yan Q, Wang W, Cai Z, Chen FE. Visible-Light-Induced Defluorinative α-C(sp 3)-H Alkylation for the Synthesis of gem-Difluoroallylated α-Trifluoromethylamines. Org Lett 2023; 25:9124-9129. [PMID: 37976410 DOI: 10.1021/acs.orglett.3c03523] [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: 11/19/2023]
Abstract
Herein, we describe a novel and efficient photoredox catalytic Cα radical addition/defluoroalkylation coupling reaction between α-trifluoromethyl alkenes and N-trifluoroethyl hydroxylamine. A series of gem-difluoroallylated α-trifluoromethylamines were synthesized by the Cα radical addition enabled by a 1,2-H shift of the in situ-generated N-trifluoroethyl radical. Notably, this protocol is distinguished by its mild conditions, easy operation, and excellent functional group tolerability.
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Affiliation(s)
- Bingran Chen
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Qinlin Chen
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Yang Liu
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Jinxiu Chen
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Xi Zhou
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Haifeng Wang
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Qiongjiao Yan
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Wei Wang
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Zeyu Cai
- Hubei Duorui Pharmaceutical Co., Ltd. Wuhan 430205, P. R. China
| | - Fen-Er Chen
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
- Shanghai Engineering Center of Industrial Catalysis for Chiral Drugs, Shanghai 200433, P. R. China
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Zhang Q, Cai Z, Yu Z, Di C, Qiu Y, Qi R. Agathis dammara Extract and its Monomer Araucarone Attenuate Abdominal Aortic Aneurysm in Mice. Cardiovasc Drugs Ther 2023:10.1007/s10557-023-07518-0. [PMID: 37979015 DOI: 10.1007/s10557-023-07518-0] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/22/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA) is a chronic vascular disease wherein the inflammation of vascular smooth muscle cells (VSMCs) plays a pivotal role in its development. Effectively mitigating AAA involves inhibiting VSMC inflammation. Agathis dammara (Lamb.) Rich, recognized for its robust anti-inflammatory and antioxidant attributes, has been employed as a traditional medicinal resource. Nonetheless, there is a dearth of information regarding the potential of Agathis dammara extract (AD) in attenuating AAA, specifically by diminishing vascular inflammation, notably VSMC inflammation. Furthermore, the active constituents of AD necessitate identification. AIM OF THE STUDY This study sought to ascertain the efficacy of AD in reducing AAA, evaluate its impact on VSMC inflammation, and elucidate whether the monomer araucarone (AO) in AD acts as an active component against AAA. MATERIALS AND METHODS The extraction of AD was conducted and subjected to analysis through High-Performance Liquid Chromatography (HPLC) and mass spectrometry. The isolation of the AO monomer followed, involving the determination of its content and purity. Subsequently, the effects of AD and AO on VSMC inflammation were assessed in vitro, encompassing an examination of inflammatory factors such as IL-6 and IL-18, as well as the activation of matrix metalloproteinase 9 (MMP9) in tumor necrosis factor-alpha (TNF-α)-stimulated VSMCs. To explore the inhibitory effects of AD/AO on AAA, C57BL/6J male mice were subjected to oral gavage (100 mg/kg) or intraperitoneal injection (50 mg/kg) of AD and AO in a porcine pancreatic elastase (PPE)-induced AAA model (14 days). This facilitated the observation of abdominal aorta dilatation, remodeling, elastic fiber disruption, and macrophage infiltration. Additionally, a three-day PPE mouse model was utilized to assess the effects of AD and AO (administered at 100 mg/kg via gavage) on acute inflammation and MMP9 expression in blood vessels. The mechanism by which AD/AO suppresses the inflammatory response was probed through the examination of NF-κB/NLRP3 pathway activation in VSMCs and aortas. RESULTS Liquid Chromatography-Mass Spectrometry (LC-MS) revealed that AO constituted 15.36% of AD's content, with a purity of 96%. Subsequent pharmacological investigations of AO were conducted in parallel with AD. Both AD and AO exhibited the ability to inhibit TNF-α-induced VSMC inflammation and MMP production in vitro. Furthermore, both substances effectively prevented PPE-induced AAA in mice, whether administered through gavage or intraperitoneal injection, evidenced by decreased vascular diameter dilation, disruption of elastin fiber layers, and infiltration of inflammatory cells. In the three-day PPE mouse model, AD and AO mitigated the heightened expression of inflammatory factors and the elevated expression of MMP9 induced by PPE. The activation of the NF-κB/NLRP3 pathway in both VSMCs and aortas was significantly suppressed by treatment with AD or AO. CONCLUSIONS Through suppressing NF-κB/NLRP3 pathway activation, AD effectively mitigates the inflammatory response in VSMCs, mitigates inflammation in aortas, prevents extracellular matrix degradation, and consequently impedes the progression of AAA. AO emerges as one of the active compounds in AD responsible for inhibiting VSMC inflammation and inhibiting AAA development.
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Affiliation(s)
- Qingyi Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Haidian District, Beijing, 100191, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
- NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Beijing, China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China
| | - Zeyu Cai
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Zhewei Yu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Chang Di
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Haidian District, Beijing, 100191, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
- NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Beijing, China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China
| | - Yingkun Qiu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China.
| | - Rong Qi
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Haidian District, Beijing, 100191, China.
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China.
- NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China.
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Beijing, China.
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China.
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Zhu Y, Ye X, Shen H, Li J, Cai Z, Min W, Hou Y, Dong H, Wu Y, Wang L, Wang X, Xiao Y, Yang P. Discovery of Novel Fourth-Generation EGFR Inhibitors to Overcome C797S-Mediated Resistance. J Med Chem 2023; 66:14633-14652. [PMID: 37885208 DOI: 10.1021/acs.jmedchem.3c01165] [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: 10/28/2023]
Abstract
Epidermal growth factor receptor (EGFR)-activating mutation is an important oncogenic driver of nonsmall cell lung cancer (NSCLC) patients. Osimertinib has been the first-line treatment for EGFR-mutated NSCLC. However, the tertiary C797S mutation leads to Osimertinib resistance by blocking the covalent binding of Cys797 to Osimertinib. To date, there are no approved inhibitors for the treatment of Osimertinib resistance. Herein, we identified a novel lead compound S8 targeting EGFRL858R/T790M/C797S by structure-based virtual screening and synthesized a series of novel compounds. Representative compound C34 showed potent inhibitory activity against EGFRL858R/T790M/C797S with an IC50 of 5.1 nM and significantly inhibited the proliferation of the H1975-TM cell line harboring EGFRL858R/T790M/C797S with an IC50 of 0.05 μM. Additionally, compound C34 demonstrated good pharmacokinetic properties with an oral bioavailability of 30.72% and significantly inhibited tumor growth in the H1975-TM xenograft tumor model. This study provides a novel thiazole derivative as an EGFR inhibitor to overcome C797S-mediated resistance.
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Affiliation(s)
- Yasheng Zhu
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Xiuquan Ye
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Hao Shen
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Jiaxing Li
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Zeyu Cai
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Wenjian Min
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Yi Hou
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Haojie Dong
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Yuxing Wu
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Liping Wang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Xiao Wang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Yibei Xiao
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Chongqing Innovation Institute of China Pharmaceutical University, Chongqing 401135, China
| | - Peng Yang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
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Sun M, Cai Z, Li C, Hao Y, Xu X, Qian K, Li H, Guo Y, Liang A, Han L, Shang H, Jia W, Cao Y, Wang C, Ma C, White JC, Xing B. Nanoscale ZnO Improves the Amino Acids and Lipids in Tomato Fruits and the Subsequent Assimilation in a Simulated Human Gastrointestinal Tract Model. ACS Nano 2023; 17:19938-19951. [PMID: 37782568 DOI: 10.1021/acsnano.3c04990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
With the widespread use of nanoenabled agrochemicals, it is essential to evaluate the food safety of nanomaterials (NMs)-treated vegetable crops in full life cycle studies as well as their potential impacts on human health. Tomato seedlings were foliarly sprayed with 50 mg/L ZnO NMs, including ZnO quantum dots (QDs) and ZnO nanoparticles once per week over 11 weeks. The foliar sprayed ZnO QDs increased fruit dry weight and yield per plant by 39.1% and 24.9, respectively. It also significantly increased the lycopene, amino acids, Zn, B, and Fe in tomato fruits by 40.5%, 15.1%, 44.5%, 76.2%, and 12.8%, respectively. The tomato fruit metabolome of tomatoes showed that ZnO NMs upregulated the biosynthesis of unsaturated fatty acids and sphingolipid metabolism and elevated the levels of linoleic and arachidonic acids. The ZnO NMs-treated tomato fruits were then digested in a human gastrointestinal tract model. The results of essential mineral release suggested that the ZnO QDs treatment increased the bioaccessibility of K, Zn, and Cu by 14.8-35.1% relative to the control. Additionally, both types of ZnO NMs had no negative impact on the α-amylase, pepsin, and trypsin activities. The digested fruit metabolome in the intestinal fluid demonstrated that ZnO NMs did not interfere with the normal process of human digestion. Importantly, ZnO NMs treatments increased the glycerophospholipids, carbohydrates, amino acids, and peptides in the intestinal fluids of tomato fruits. This study suggests that nanoscale Zn can be potentially used to increase the nutritional value of vegetable crops and can be an important tool to sustainably increase food quality and security.
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Affiliation(s)
- Min Sun
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environmental and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Zeyu Cai
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environmental and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Chunyang Li
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environmental and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Yi Hao
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environmental and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Xinxin Xu
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environmental and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Kun Qian
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Hao Li
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environmental and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Yaozu Guo
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environmental and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Anqi Liang
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environmental and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Lanfang Han
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environmental and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Heping Shang
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environmental and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Weili Jia
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, Guangzhou 510006, China
| | - Yini Cao
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, Hunan, China
| | - Cuiping Wang
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education,Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Chuanxin Ma
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environmental and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven 06511, Connecticut, United States
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts Amherst, Amherst 01003, Massachusetts, United States
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Hao Y, Cai Z, Ma C, White JC, Cao Y, Chang Z, Xu X, Han L, Jia W, Zhao J, Xing B. Root Exposure of Graphitic Carbon Nitride (g-C 3N 4) Modulates Metabolite Profile and Endophytic Bacterial Community to Alleviate Cadmium- and Arsenate-Induced Phytotoxicity to Rice ( Oryza sativa L.). ACS Nano 2023; 17:19724-19739. [PMID: 37812587 DOI: 10.1021/acsnano.3c03066] [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] [Indexed: 10/11/2023]
Abstract
To investigate the mechanisms by which g-C3N4 alleviates metal(loid)-induced phytotoxicity, rice seedlings were exposed to 100 and 250 mg/kg graphitic carbon nitride (g-C3N4) with or without coexposure to 10 mg/kg Cd and 50 mg/kg As for 30 days. Treatment with 250 mg/kg g-C3N4 significantly increased shoot and root fresh weight by 22.4-29.9%, reduced Cd and As accumulations in rice tissues by 20.6-26.6%, and elevated the content of essential nutrients (e.g., K, S, Mg, Cu, and Zn) compared to untreated controls. High-throughput sequencing showed that g-C3N4 treatment increased the proportion of plant-growth-promoting endophytic bacteria, including Streptomyces, Saccharimonadales, and Thermosporothrix, by 0.5-3.30-fold; these groups are known to be important to plant nutrient assimilation, as well as metal(loid) resistance and bioremediation. In addition, the population of Deinococcus was decreased by 72.3%; this genus is known to induce biotransformation As(V) to As(III). Metabolomics analyses highlighted differentially expressed metabolites (DEMs) involved in the metabolism of tyrosine metabolism, pyrimidines, and purines, as well as phenylpropanoid biosynthesis related to Cd/As-induced phytotoxicity. In the phenylpropanoid biosynthesis pathway, the increased expression of 4-coumarate (1.13-fold) and sinapyl alcohol (1.26-fold) triggered by g-C3N4 coexposure with Cd or As played a critical role in promoting plant growth and enhancing rice resistance against metal(loid) stresses. Our findings demonstrate the potential of g-C3N4 to enhance plant growth and minimize the Cd/As-induced toxicity in rice and provide a promising nanoenabled strategy for remediating heavy metal(loid)-contaminated soil.
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Affiliation(s)
- Yi Hao
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
- Stockbridge School of Agriculture, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Zeyu Cai
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Chuanxin Ma
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
- Stockbridge School of Agriculture, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
- The Connecticut Agricultural Experiment Station, New Haven, Connecticut 06511, United States
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, Connecticut 06511, United States
| | - Yini Cao
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan 410004, People's Republic of China
| | - Zhaofeng Chang
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, People's Republic of China
| | - Xinxin Xu
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Lanfang Han
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Weili Jia
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, Guangzhou 510006, People's Republic of China
| | - Jian Zhao
- Ministry of Education Key Laboratory of Marine Environment and Ecology, Institute of Coastal Environmental Pollution Control, and Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, People's Republic of China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
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Liang L, Cai Z, Wu H, Meng H, Zhao J. [Genetic analysis and in vitro validation of a case of Alport syndrome due to a splicing variant of COL4A5 gene]. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2023; 40:1263-1269. [PMID: 37730228 DOI: 10.3760/cma.j.cn511374-20221004-00669] [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: 09/22/2023]
Abstract
OBJECTIVE To explore the genetic basis for a patient with Alport syndrome (AS) and confirm the existence of a splicing variant. METHODS An AS patient diagnosed at the Affiliated Hospital of Inner Mongolia Medical University on January 8, 2021 for significant proteinuria and occult hematuria was selected as the study subject. Clinical data was collected. Peripheral blood samples were collected for the extraction of genomic DNA. Whole exome sequencing and Sanger sequencing were carried out to identify potential genetic variants. An in vitro experiment was also conducted to verify the abnormal mRNA splicing. Bioinformatic software was used to analyze the conservation of amino acids of the variant sites and simulate the 3D structure of the variant collagen IV protein. Immunofluorescence and immunohistochemistry were carried out on renal tissues from the patient to confirm the presence of AS kidney injury. RESULTS The patient, a 21-year-old male, had a 24-hour urine protein of 3.53 g/24 h, which fulfilled the diagnostic criteria for proteinuria. His blood uric acid has also increased to 491 μmol/L. DNA sequencing revealed that he has harbored a c.835-9T>A splice variant of the COL4A5 gene, which was not found in either of his parents. In vitro experiment confirmed that the variant has removed 57 bp from the exon 15 of the mRNA of the COL4A5 gene. The deletion may cause loss of amino acid residues from positions 279 to 297, which in turn may affect the stability of the secondary structure of the α5 chain encoded by the COL4A5 gene. The amino acids are conserved across various species. The result of homology modeling indicated that the trimerization of Col-IV with the mutated α5 chain could be achieved, however, the 3D structure was severely distorted. The AS kidney damage was confirmed through immunofluorescence assays. Based on the guidelines from the American College of Medical Genetics and Genomics, the c.835-9T>A variant was classified as likely pathogenic (PVS1_Moderate+PS3_Moderate+PM2_Supporting+PS2+PP3+PP4). CONCLUSION The c.835-9T>A variant of the COL4A5 gene probably underlay the AS in this patient. In vitro experiment has confirmed the abnormal splicing caused by the variant. Histopathological examination of the kidney tissue has provided in vivo evidence for its pathogenicity. Above finding has expanded the mutational spectrum of the COL4A5 gene.
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Affiliation(s)
- Lei Liang
- Prenatal Diagnosis Center, the Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia 010050, China.
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Liang L, Wu H, Cai Z, Zhao J. Genetic and molecular dynamics analysis of two variants of the COL4A5 gene causing Alport syndrome. BMC Med Genomics 2023; 16:192. [PMID: 37596645 PMCID: PMC10436629 DOI: 10.1186/s12920-023-01623-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 07/31/2023] [Indexed: 08/20/2023] Open
Abstract
BACKGROUND Alport syndrome (AS; OMIM#308,940) is a hereditary kidney disease that progresses over time and is distinguished by hearing loss and ocular irregularities. The syndrome has three subtypes, namely X-linked (XL; OMIM#301,050), autosomal recessive (AR; OMIM#203,780), and autosomal dominant (AD; OMIM#104,200), which are categorized based on their respective modes of inheritance. XLAS is attributed to a pathogenic variant in the COL4A5 (OMIM*303,630) gene, which encodes the α5(IV) chain of type IV collagen (Col-IV). In contrast, ADAS and ARAS are the result of variants in the COL4A3 (OMIM*120,070) and COL4A4 (OMIM*120,131) genes, which encode the α3(IV) and α4(IV) chains of Col-IV, respectively. Typically, the diagnosis of AS necessitates hereditary or pathological assessments. The determination of splicing variants as pathogenic or non-pathogenic based on gene sequencing outcomes is challenging. METHODS In this study, we conducted exome sequencing and Sanger sequencing on two unrelated Chinese patients with AS. We identified a deletion variant c.4414delG in the COL4A5 gene and a splicing variant c.4298-20T > A in the same gene. In order to ascertain the impact of c.4298-20T > A on the synthesis of COL4A5 mRNA, we performed experiments involving minigene splicing. Additionally, we predicted the ability of these two variants to affect triple helix formation of α345(IV) using molecular dynamics methods. RESULTS The c.4414delG deletion variant caused a change in the genetic code of the COL4A5 gene. Specifically, it caused a shift in codon 1472 from encoding aspartate to encoding methionine. This shift resulted in a change of 75 amino acids in the protein sequence, ultimately leading to an early stop codon. This premature stop codon caused the production of a truncated α5(IV) chain with a predicted protein effect of p.D1472Mfs. The mRNA of the COL4A5 gene experienced intron 46 retention due to the splicing variant c.4298-20T > A, leading to the inclusion of six additional amino acids between amino acids 1432 and 1433 of the α5(IV) chain. This variant is predicted to have a protein effect of p.(P1432_G1433insDYFVEI). The impact of two variants, c.4414delG and c.4298-20T > A, on the aggregation region for α3(IV), α4(IV), and α5(IV) trimerisation were studied using molecular dynamics simulations. Results showed that the deletion variant c.4414delG had a significantly stronger disruption on NC1, compared to the splicing variant c.4298-20T > A. This difference in impact is consistent with the varying clinical phenotypes observed in the two patients. Based on the American College of Medical Genetics and Genomics (ACMG) classification criteria and guidelines for genetic variants, the deletion variant c.4414delG was rated as pathogenic while the splicing variant c.4298-20T > A was rated as likely-pathogenic. CONCLUSION Our study has identified two novel pathogenic loci, the deletion variant c.4414delG and the splicing variant c.4298-20T > A, associated with XLAS. This finding expands the genetic spectrum of XLAS. We suggest that molecular dynamics can effectively model the effect of genetic variation on α345(IV) trimerization, which may offer valuable insights into the mechanisms of XLAS pathogenesis.
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Affiliation(s)
- Lei Liang
- Center for Prenatal Diagnosis and Medical Genetics, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010015, PR China
| | - Haotian Wu
- School of Public Health, Inner Mongolia Medical University, Hohhot, 010015, PR China
| | - Zeyu Cai
- Department of Nephrology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010015, PR China
| | - Jianrong Zhao
- Department of Nephrology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010015, PR China.
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Shang H, Ma C, Li C, Cai Z, Shen Y, Han L, Wang C, Tran J, Elmer WH, White JC, Xing B. Aloe Vera Extract Gel-Biosynthesized Selenium Nanoparticles Enhance Disease Resistance in Lettuce by Modulating the Metabolite Profile and Bacterial Endophytes Composition. ACS Nano 2023; 17:13672-13684. [PMID: 37440420 DOI: 10.1021/acsnano.3c02790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
The use of nanotechnology to suppress crop diseases has attracted significant attention in agriculture. The present study investigated the antifungal mechanism by which aloe vera extract gel-biosynthesized (AVGE) selenium nanoparticles (Se NPs) suppressed Fusarium-induced wilt disease in lettuce (Lactuca sativa). AVGE Se NPs were synthesized by utilizing sodium selenite as a Se source and AVGE as a biocompatible capping and reducing agent. Over 21 d, 2.75% of total AVGE Se NPs was dissolved into Se ions, which was more than 8-fold greater than that of bare Se NPs (0.34%). Upon exposure to soil applied AVGE Se NPs at 50 mg/kg, fresh shoot biomass was significantly increased by 61.6 and 27.8% over the infected control and bare Se NPs, respectively. As compared to the infected control, the shoot levels of citrate, isocitrate, succinate, malate, and 2-oxo-glutarate were significantly upregulated by 0.5-3-fold as affected by both Se NPs. In addition, AVGE Se NPs significantly increased the shoot level of khelmarin D, a type of coumarin, by 4.40- and 0.71-fold over infected controls and bare Se NPs, respectively. Additionally, AVGE Se NPs showed greater upregulation of jasmonic acid and downregulation of abscisic acid content relative to bare Se NPs in diseased shoots. Moreover, the diversity of bacterial endophytes was significantly increased by AVGE Se NPs, with the values of Shannon index 40.2 and 9.16% greater over the infected control and bare Se NPs. Collectively, these findings highlight the significant potential of AVGE Se NPs as an effective and biocompatible strategy for nanoenabled sustainable crop protection.
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Affiliation(s)
- Heping Shang
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Chuanxin Ma
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Chunyang Li
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Zeyu Cai
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Yu Shen
- The Connecticut Agricultural Experiment Station, New Haven, Connecticut 06504, United States
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Lanfang Han
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Cuiping Wang
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Jimmy Tran
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Wade H Elmer
- The Connecticut Agricultural Experiment Station, New Haven, Connecticut 06504, United States
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, Connecticut 06504, United States
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
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Sahana G, Cai Z, Sanchez MP, Bouwman AC, Boichard D. Invited review: Good practices in genome-wide association studies to identify candidate sequence variants in dairy cattle. J Dairy Sci 2023:S0022-0302(23)00357-0. [PMID: 37349208 DOI: 10.3168/jds.2022-22694] [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: 08/24/2022] [Accepted: 02/01/2023] [Indexed: 06/24/2023]
Abstract
Genotype data from dairy cattle selection programs have greatly facilitated GWAS to identify variants related to economic traits. Results can enhance the accuracy of genomic prediction, analyze more complex models that go beyond additive effects, elucidate the genetic architecture of a trait, and finally, decipher the underlying biology of traits. The entire process, comprising data generation, quality control, statistical analyses, interpretation of association results, and linking results to biology should be designed and executed to minimize the generation of false-positive and false-negative associations and misleading links to biological processes. This review aims to provide general guidelines for data analysis that address data quality control, association tests, adjustment for population stratification, and significance evaluation to improve the reliability of conclusions. We also provide guidance on post-GWAS strategy and the interpretation of results. These guidelines are tailored to dairy cattle, which are characterized by long-range linkage disequilibrium, large half-sib families, and routinely collected phenotypes, requiring different approaches than those applied in human GWAS. We discuss common limitations and challenges that have been overlooked in the analysis and interpretation of GWAS to identify candidate sequence variants in dairy cattle.
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Affiliation(s)
- G Sahana
- Aarhus University, Center for Quantitative Genetic and Genomics, 8830 Tjele, Denmark.
| | - Z Cai
- Aarhus University, Center for Quantitative Genetic and Genomics, 8830 Tjele, Denmark
| | - M P Sanchez
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350 Jouy-en-Josas, France
| | - A C Bouwman
- Wageningen University & Research, Animal Breeding and Genomics, 6700 AH Wageningen, the Netherlands
| | - D Boichard
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350 Jouy-en-Josas, France
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Dong H, Ye X, Zhu Y, Shen H, Shen H, Chen W, Ji M, Zheng M, Wang K, Cai Z, Sun H, Xiao Y, Yang P. Discovery of Potent and Wild-Type-Sparing Fourth-Generation EGFR Inhibitors for Treatment of Osimertinib-Resistance NSCLC. J Med Chem 2023; 66:6849-6868. [PMID: 37141440 DOI: 10.1021/acs.jmedchem.3c00277] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Osimertinib resistance is an unmet clinical need for the treatment of non-small cell lung cancer (NSCLC), and the main mechanism is tertiary C797S mutation of epidermal growth factor receptor (EGFR). To date, there is no inhibitor approved for the treatment of Osimertinib-resistant NSCLC. Herein, we reported a series of Osimertinib derivatives as fourth-generation inhibitors which were rationally designed. Top candidate D51 potently inhibited the EGFRL858R/T790M/C797S mutant with an IC50 value of 14 nM and suppressed the proliferation of H1975-TM cells with an IC50 value of 14 nM, which show over 500-fold selectivity against wild-type forms. Moreover, D51 inhibited the EGFRdel19/T790M/C797S mutant and the proliferation of the PC9-TM cell line with IC50 values of 62 and 82 nM. D51 also exhibited favorable in vivo druggability, including PK parameters, safety properties, in vivo stability, and antitumor activity.
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Affiliation(s)
- Haojie Dong
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Xiuquan Ye
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yasheng Zhu
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Hao Shen
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Hongtao Shen
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Weijiao Chen
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Minghui Ji
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Mingming Zheng
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Keren Wang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Zeyu Cai
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Haopeng Sun
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yibei Xiao
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Chongqing Innovation Institute of China Pharmaceutical University, Chongqing 401135, China
| | - Peng Yang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
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Cai Z, Fu M, Yao Y, Chen Y, Song H, Zhang S. Differences in phytohormone and flavonoid metabolism explain the sex differences in responses of Salix rehderiana to drought and nitrogen deposition. Plant J 2023; 114:534-553. [PMID: 36790349 DOI: 10.1111/tpj.16152] [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: 02/15/2022] [Accepted: 02/08/2023] [Indexed: 05/10/2023]
Abstract
Due to global warming and the increase in nitrogen oxide emissions, plants experience drought and nitrogen (N) deposition. However, little is known about the acclimation to drought and N deposition of Salix species, which are dioecious woody plants. Here, an investigation into foliar N deposition combined with drought was conducted by assessing integrated phenotypes, phytohormones, transcriptomics, and metabolomics of male and female Salix rehderiana. The results indicated that there was greater transcriptional regulation in males than in females. Foliar N deposition induced an increase in foliar abscisic acid (ABA) levels in males, resulting in the inhibition of stomatal conductance, photosynthesis, carbon (C) and N accumulation, and growth, whereas more N was assimilated in females. Growth as well as C and N accumulation in drought-stressed S. rehderiana females increased after N deposition. Interestingly, drought decreased flavonoid biosynthesis whereas N deposition increased it in females. Both drought and N deposition increased flavonoid methylation in males and glycosylation in females. However, in drought-exposed S. rehderiana, N deposition increased the biosynthesis and glycosylation of flavonoids in females but decreased glycosylation in males. Therefore, foliar N deposition affects the growth and drought tolerance of S. rehderiana by altering the foliar ABA levels and the biosynthesis and modification of flavonoids. This work provides a basis for understanding how S. rehderiana may acclimate to N deposition and drought in the future.
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Affiliation(s)
- Zeyu Cai
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Mingyue Fu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Yuan Yao
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Yao Chen
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Haifeng Song
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Sheng Zhang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
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Yang L, Wu H, Luo C, Zhao Y, Dai R, Li Z, Zhang X, Gong Z, Cai Z, Shen Y, Yu F, Li W, Zhao H, Zhang T, Zhu J, Fu Y, Wang J, Kong W. Urate-Lowering Therapy Inhibits Thoracic Aortic Aneurysm and Dissection Formation in Mice. Arterioscler Thromb Vasc Biol 2023; 43:e172-e189. [PMID: 37128913 DOI: 10.1161/atvbaha.122.318788] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
BACKGROUND Thoracic aortic aneurysm and dissection (TAAD) is a highly lethal vascular disease without effective drug therapy. Whether elevated serum concentrations of uric acid are involved in TAAD development remains unclear. METHODS Serum uric acid levels were detected in different TAAD mouse models and patients. The urate-lowering drug allopurinol was administered in the drinking water of TAAD mice. Adenine diet-induced mice were established to investigate the role of hyperuricemia in TAAD formation and RNA-sequencing of thoracic aortas from these mice was performed. RESULTS We found serum uric acid levels were elevated in various mouse TAAD models, including mice fed a β-aminopropionitrile diet, Marfan mice with fibrillin-1 haploinsufficiency (Fbn1C1041G/+), and ApoE-/- mice infused with Ang II (angiotensin II), as well as in patients with TAAD. Administration of urate-lowering drug allopurinol in the drinking water significantly alleviated TAAD formation in β-aminopropionitrile-treated mice, Fbn1C1041G/+ mice, and Ang II-infused ApoE-/- mice. Moreover, an adenine diet was used to induce hyperuricemia in mice. Intriguingly, a 4-week adenine diet feeding directly induced TAAD formation characterized by increased maximal thoracic aortic diameters and severe elastin degradation, which were ameliorated by allopurinol. Unbiased RNA-sequencing in mouse thoracic aortas suggested that FcγR (Fc gamma receptor) was upregulated upon adenine diet, but reciprocally repressed by allopurinol. Mechanistically, hyperuricemia activated FcγR-mediated ERK1/2 (extracellular signal-regulated kinase 1/2) phosphorylation to induce macrophage inflammation and TAAD development, which was abrogated by allopurinol or FcγR deficiency. CONCLUSIONS This study uncovered an important and previously unrecognized role of hyperuricemia in mediating the pathogenesis of TAAD, and uric acid-lowering drug may represent a promising therapeutic approach for TAAD.
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Affiliation(s)
- Liu Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China (L.Y., H.W., R.D., Z.L., X.Z., Z.G., Z.C., Y.S., F.Y., Y.F., W.K.)
- Wuxi School of Medicine, Jiangnan University, Wuxi, China (L.Y.)
| | - Hao Wu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China (L.Y., H.W., R.D., Z.L., X.Z., Z.G., Z.C., Y.S., F.Y., Y.F., W.K.)
| | - Congcong Luo
- Department of Cardiovascular Surgery, Beijing Aortic Disease Center, Beijing Anzhen Hospital, Capital Medical University, China (C.L., J.Z.)
| | - Yang Zhao
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing, China (Y.Z.)
| | - Rongbo Dai
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China (L.Y., H.W., R.D., Z.L., X.Z., Z.G., Z.C., Y.S., F.Y., Y.F., W.K.)
| | - Zhiqing Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China (L.Y., H.W., R.D., Z.L., X.Z., Z.G., Z.C., Y.S., F.Y., Y.F., W.K.)
| | - Xu Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China (L.Y., H.W., R.D., Z.L., X.Z., Z.G., Z.C., Y.S., F.Y., Y.F., W.K.)
| | - Ze Gong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China (L.Y., H.W., R.D., Z.L., X.Z., Z.G., Z.C., Y.S., F.Y., Y.F., W.K.)
| | - Zeyu Cai
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China (L.Y., H.W., R.D., Z.L., X.Z., Z.G., Z.C., Y.S., F.Y., Y.F., W.K.)
| | - Yicong Shen
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China (L.Y., H.W., R.D., Z.L., X.Z., Z.G., Z.C., Y.S., F.Y., Y.F., W.K.)
| | - Fang Yu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China (L.Y., H.W., R.D., Z.L., X.Z., Z.G., Z.C., Y.S., F.Y., Y.F., W.K.)
| | - Wei Li
- Department of Vascular Surgery, Peking University People's Hospital, Beijing, China. (W.L.)
| | - Hongmei Zhao
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, China (H.Z., J.W.)
| | - Tao Zhang
- Vascular Surgery Department, Peking University People's Hospital, Beijing, China. (T.Z.)
| | - Junming Zhu
- Department of Cardiovascular Surgery, Beijing Aortic Disease Center, Beijing Anzhen Hospital, Capital Medical University, China (C.L., J.Z.)
| | - Yi Fu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China (L.Y., H.W., R.D., Z.L., X.Z., Z.G., Z.C., Y.S., F.Y., Y.F., W.K.)
| | - Jing Wang
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, China (H.Z., J.W.)
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China (L.Y., H.W., R.D., Z.L., X.Z., Z.G., Z.C., Y.S., F.Y., Y.F., W.K.)
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18
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Xiong YF, Cai Z, Li SC, Song YJ, Hu XM, Zheng L. [Bioinformatics analysis in metagenomic next-generation sequencing of pathogenic microorganisms: current status and challenges]. Zhonghua Yi Xue Za Zhi 2023; 103:1098-1102. [PMID: 37055228 DOI: 10.3760/cma.j.cn112137-20221208-02598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
The clinical application of metagenomic next-generation sequencing (mNGS) in the diagnosis of unknown pathogenic infections and critical infections has become increasingly valuable. Due to the huge volume of mNGS data and the complexity of clinical diagnosis and treatment, mNGS has difficulties in data analysis and interpretation in practical application. Therefore, in the process of clinical practice, it is crucial to grasp the key points of bioinformatics analysis and establish a standardized bioinformatics analysis process, which is an important step in the transformation of mNGS from laboratory to clinic. At present, bioinformatics analysis of mNGS has made great progress, but with the high requirements of clinical standardization of bioinformatics analysis and the development of computer technology, bioinformatics analysis of mNGS is also facing new challenges. This article mainly elaborates on quality control, and identification and visualization of pathogenic bacteria.
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Affiliation(s)
- Y F Xiong
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Cai
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - S C Li
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Y J Song
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X M Hu
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - L Zheng
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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19
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Cai Z, Xie N, Gong Z, Yang Z, Lin F, Li Z, Dai R, Chen Y, Zhang S, Zhu S, Zhou S, Lin J, Yu F, Liu L, Sun J, Zhou J, Li W, Xiong C, Fu Y, Cong X, Kong W. Activin Receptor-Like Kinase 3 Directly Couples Gαq (Guanine Nucleotide-Binding Protein Subunit αq)/ Gαq (Guanine Nucleotide-Binding Protein Subunit α11) to Regulate Vascular Contractility. Hypertension 2023; 80:1231-1244. [PMID: 36999441 DOI: 10.1161/hypertensionaha.122.20654] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
Abstract
BACKGROUND Vascular smooth muscle cell (VSMC) contractility is critical for blood pressure regulation and vascular homeostasis. Identifying the key molecule that maintains VSMC contractility may provide a novel therapeutic target for vascular remodeling. ALK3 (activin receptor-like kinase 3) is a serine/threonine kinase receptor, and deletion of ALK3 causes embryonic lethality. However, little is known about the role of ALK3 in postnatal arterial function and homeostasis. METHODS We conducted in vivo studies in a tamoxifen-induced postnatal VSMC-specific ALK3 deletion mice suitable for analysis of blood pressure and vascular contractility. Additionally, the role of ALK3 on VSMC was determined using Western blot, collagen-based contraction assay and traction force microscopy. Furthermore, interactome analysis were performed to identify the ALK3-associated proteins and bioluminescence resonance energy transfer assay was used to characterize Gαq activation. RESULTS ALK3 deficiency in VSMC led to spontaneous hypotension and impaired response to angiotensin II in mice. In vivo and in vitro data revealed that ALK3 deficiency impaired contraction force generation by VSMCs, repressed the expression of contractile proteins, and inhibited the phosphorylation of myosin light chain. Mechanistically, Smad1/5/8 signaling mediated the ALK3-modulated contractile protein expressions but not myosin light chain phosphorylation. Furthermore, interactome analysis revealed that ALK3 directly interacted with and activated Gαq (guanine nucleotide-binding protein subunit αq)/Gα11 (guanine nucleotide-binding protein subunit α11), thereby stimulating myosin light chain phosphorylation and VSMC contraction. CONCLUSIONS Our study revealed that in addition to canonical Smad1/5/8 signaling, ALK3 modulates VSMC contractility through direct interaction with Gαq/Gα11, and therefore, might serve as a potential target for modulating aortic wall homeostasis.
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Affiliation(s)
- Zeyu Cai
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
| | - Nan Xie
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
- Shenzhen Key Laboratory of Cardiovascular Disease, Fuwai Hospital Chinese Academy of Medical Sciences, Guangdong Province, China (N.X.)
| | - Ze Gong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
| | - Zhao Yang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, China (Z.Y., S. Zhou, J.L.)
| | - Feng Lin
- Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing, China. (F.L., C.X.)
| | - Zhiqing Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
| | - Rongbo Dai
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
| | - Yufei Chen
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
| | - Siting Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
| | - Shirong Zhu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
| | - Shuhua Zhou
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, China (Z.Y., S. Zhou, J.L.)
| | - Jingyu Lin
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Jinan, China (Z.Y., S. Zhou, J.L.)
| | - Fang Yu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
| | - Limei Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
| | - Jinpeng Sun
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
| | - Jing Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
| | - Wei Li
- Department of Vascular Surgery, Peking University People's Hospital, Peking University, Beijing, China. (W.L.)
| | - Chunyang Xiong
- Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing, China. (F.L., C.X.)
| | - Yi Fu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
| | - Xin Cong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.C., N.X., Z.G., Z.L., R.D., Y.C., S. Zhang, S. Zhu, F.Y., L.L., J.S., J.Z., Y.F., X.C., W.K.)
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Yuan K, Shen H, Zheng M, Xia F, Li Q, Chen W, Ji M, Yang H, Zhuang X, Cai Z, Min W, Wang X, Xiao Y, Yang P. Discovery of Potent DYRK2 Inhibitors with High Selectivity, Great Solubility, and Excellent Safety Properties for the Treatment of Prostate Cancer. J Med Chem 2023; 66:4215-4230. [PMID: 36800260 DOI: 10.1021/acs.jmedchem.3c00106] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Prostate cancer (PCa) is a common male cancer with high incidence and mortality, and hormonal therapy as the major treatment for PCa patients is troubled by the inevitable resistance that makes us identify novel targets for PCa. Dual-specificity tyrosine phosphorylation-regulated kinase 2 (DYRK2) was found to be an effective target for the treatment of PCa, but the research on its inhibitors is rather little. In this work, a potent DYRK2 inhibitor 43 (IC50 = 0.6 nM) was acquired through virtual screening and structural optimization, which displayed high selectivity among 205 kinases; meanwhile, detailed interactions of 43 with DYRK2 were illustrated by the cocrystal. Furthermore, 43 possessed great water solubility (29.5 mg/mL), favorable safety properties (LD50 > 10,000 mg/kg), and potent anti-PCa activities, which could be used as a potential candidate in further preclinical studies.
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Affiliation(s)
- Kai Yuan
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Hongtao Shen
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Mingming Zheng
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Fei Xia
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Qiannan Li
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Weijiao Chen
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Minghui Ji
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Huanaoyu Yang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Xujie Zhuang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Zeyu Cai
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Wenjian Min
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Xiao Wang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Yibei Xiao
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Peng Yang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
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Huang JC, Yu ZZ, Zou F, Li M, Cai Z, Liu GL, Li GY. [Progress in the clinical research of malignant melanoma in nasal cavity and paranasal sinuses]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:297-302. [PMID: 36878516 DOI: 10.3760/cma.j.cn115330-20220608-00337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Affiliation(s)
- J C Huang
- Postgraduate Training Base of Shiyan Taihe Hospital of Hubei Medical College, Shiyan 442000, China
| | - Z Z Yu
- Department of Otorhinolaryngology Head and Neck Surgery, Shiyan Taihe Hospital (Affiliated Hospital of Hubei Medical College), Shiyan 442000, China
| | - F Zou
- Department of Otorhinolaryngology Head and Neck Surgery, Shiyan Taihe Hospital (Affiliated Hospital of Hubei Medical College), Shiyan 442000, China
| | - M Li
- Department of Otorhinolaryngology Head and Neck Surgery, Shiyan Taihe Hospital (Affiliated Hospital of Hubei Medical College), Shiyan 442000, China
| | - Z Cai
- Department of Otorhinolaryngology Head and Neck Surgery, Shiyan Taihe Hospital (Affiliated Hospital of Hubei Medical College), Shiyan 442000, China
| | - G L Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Shiyan Taihe Hospital (Affiliated Hospital of Hubei Medical College), Shiyan 442000, China
| | - G Y Li
- Department of Otorhinolaryngology Head and Neck Surgery, Shiyan Taihe Hospital (Affiliated Hospital of Hubei Medical College), Shiyan 442000, China
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Luo L, Cai Z, Zeng S, Wang L, Kang Z, Yang N, Zhang Y. CT and MRI features of hepatic epithelioid haemangioendothelioma: a multi-institutional retrospective analysis of 15 cases and a literature review. Insights Imaging 2023; 14:2. [PMID: 36600110 DOI: 10.1186/s13244-022-01344-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 06/02/2022] [Accepted: 12/08/2022] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE To improve the current imaging understanding of MRI or CT for hepatic epithelioid haemangioendothelioma (HEHE) to aid in its successful preoperative diagnosis. METHODS The imaging features of 15 patients (median age 38.6, range 20-71; 7 M/8 F) from eight institutions with pathologically confirmed HEHE were retrospectively analysed. Additionally, the CT/MR imaging features of 180 patients in 15 literature publications were collected, analysed and compared with our case series. RESULTS Fifteen patients underwent CT and MRI (n = 2), CT (n = 9) or MR (n = 8) scans. A total of 92.9% (13/14) of the patients were initially diagnosed with other lesions on imaging. A total of 86.7% (13/15) were multifocal. Nodules (11/15, 73.3%) were predominantly peripheral in distribution (12/15, 80.0%). Some cases were associated with hepatic capsular retraction (13/15, 86.7%), "target signs" (8/15, 53.3%) and "lollipop signs" (5/15, 33.3%). Peripheral enhancement of various shapes in the early phase with a progressive centripetal filling was the most common pattern of enhancement (12/15, 80.0%). Abnormal vascularity was seen in 50.7% (6/15) of the patients. Suspicious tumour thromboses in the inferior vena cava were seen in 3 (20.0%) of the patients. Two of the 15 patients (13.3%) had a history of smoking. CONCLUSIONS HEHEs have common distinctive features, including multifocal lesions that are predominantly peripheral, "target signs", "lollipop signs", hepatic capsular retraction and peripheral enhancement of various shapes in the early phase with progressive centripetal filling. Additional aggressive imaging features that may be valuable clues to the diagnosis can be identified by CT or MRI.
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Affiliation(s)
- Lianmei Luo
- Department of Radiology, The Fifth Affiliated Hospital, Sun Yat-Sen University, No. 52 Meihua Dong Road, Zhuhai, 519000, Guangdong, China
| | - Zeyu Cai
- Department of Radiology, The Fifth Affiliated Hospital, Sun Yat-Sen University, No. 52 Meihua Dong Road, Zhuhai, 519000, Guangdong, China
| | - Sihui Zeng
- Department of Radiology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Lizhu Wang
- Department of Radiology, The Fifth Affiliated Hospital, Sun Yat-Sen University, No. 52 Meihua Dong Road, Zhuhai, 519000, Guangdong, China
| | - Zhuang Kang
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ning Yang
- Department of Radiology, Peking Union Medical College Hospital, Beijing, China
| | - Yaqin Zhang
- Department of Radiology, The Fifth Affiliated Hospital, Sun Yat-Sen University, No. 52 Meihua Dong Road, Zhuhai, 519000, Guangdong, China.
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Yu H, Tang K, Cai Z, Lin X, Huang Y, Yu T, Zhang Q, Wang Q, Wu L, Yang L, Shan H, Luo H. Carbon Dots-Based Nanozyme for Drug-Resistant Lung Cancer Therapy by Encapsulated Doxorubicin/siRNA Cocktail. Int J Nanomedicine 2023; 18:933-948. [PMID: 36852185 PMCID: PMC9960730 DOI: 10.2147/ijn.s390984] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 01/23/2023] [Indexed: 02/22/2023] Open
Abstract
Background Nanomaterials exhibited intrinsic enzyme-like properties due to the unique properties compared with natural enzyme. Carbon dots (CDs) are an important kind of quantum-sized nanomaterials, which have enormous application potential in bio-imaging, drug carrier, and nanosystems. Carbon dots possess intrinsic enzyme-like properties, such as glutathione (GSH) oxidase or peroxidase activities. Methods A co-delivery nanosystem that could carry siRNA and doxorubucin (DOX) simultaneously has been studied in this work. The co-delivery based on carbon dots was surface-modified with poly-ethylenimine (PEI) and loaded the siMRP1 with chemotherapeutics on the surface with pH-triggered drug release. The CD-PEI was synthesized by one-step microwave assisted method; the PEI was raw materials and passivator during the reaction process that makes CDs exhibit excellent optical property. Results The CD-PEI was capable of loading and delivering siMRP1 and DOX to tumors and releasing them synchronously in cells in an acid-triggered manner. The particles exhibited GSH oxidase-like catalytic property, oxidizing GSH to oxidized glutathione with concomitant increase of reactive oxygen species (ROS). We found that silencing of MRP1 by co-delivery system antagonized chemoresistance by increasing DOX accumulation and significantly enhancing the inhibitory effect of cell viability induced by CD-PEI-DOX. The co-delivery system dramatically inhibited tumor growth in xenograft model, and CDs counteracted MRP1 function by siRNA-mediated knockdown of MRP1. Conclusion Taken together, we uncover the potential role of CDs with a combination of siRNA and chemotherapeutics in overcoming chemoresistance of lung cancer by suppressing MRP1 and oxidation of GSH. Our findings imply its potential of antagonizing chemoresistance to enhance therapeutic efficiency of doxorubicin in clinical practices of lung cancer treatment.
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Affiliation(s)
- Hailing Yu
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong, People's Republic of China
| | - Kexin Tang
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong, People's Republic of China
| | - Zeyu Cai
- Department of Radiology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China
| | - Xi Lin
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong, People's Republic of China
| | - Yongquan Huang
- Department of Ultrasound, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China
| | - Ting Yu
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong, People's Republic of China
| | - Qianqian Zhang
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong, People's Republic of China
| | - Qiang Wang
- The Green Aerotechnics Research Institute of Chongqing Jiaotong University, Chongqing, People's Republic of China
| | - Lili Wu
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin, Heilongjiang, People's Republic of China
| | - Lei Yang
- Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin, Heilongjiang, People's Republic of China
| | - Hong Shan
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong, People's Republic of China
| | - Hui Luo
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong, People's Republic of China
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Liang L, Wu H, Cai Z, Zhao J. Molecular dynamics and minigene assay of new splicing variant c.4298-20T>A of COL4A5 gene that cause Alport syndrome. Front Genet 2023; 14:1059322. [PMID: 36923787 PMCID: PMC10009158 DOI: 10.3389/fgene.2023.1059322] [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: 10/01/2022] [Accepted: 02/13/2023] [Indexed: 03/02/2023] Open
Abstract
Introduction: Alport syndrome (AS; OMIM#308940) is a progressive hereditary kidney disease characterized by hearing loss and ocular abnormalities. According to the mode of inheritance, AS has three subtypes: X-linked (XL; OMIM#301050), autosomal recessive (AR; OMIM#203780), and autosomal dominant (AD; OMIM#104200). XLAS is caused by a pathogenic variant in COL4A5 (OMIM*303630) gene encoding type IV collagen (Col-IV) α5 chain, while ADAS and ARAS are consequences of a variant in COL4A3 (OMIM*120070) and COL4A4 (OMIM*120131) genes that encode Col-IV α3 and α4 chains, respectively. Usually, diagnosis of AS requires hereditary or pathological examinations. Splicing variants are hard to be determined as pathogenic or non-pathogenic based on the results of gene sequencing. Methods: This study focused on a splicing variant in COL4A5 gene, termed NM_000495.5: c.4298-20T>A, and to analyzed its authenticity and damaged α5 chain. In vitro minigene splicing assay was applied to investigate the effect of splicing variant, c.4298-20T>A, on COL4A5 mRNA synthesis. Molecular dynamics method was used to predict the capability of the responsible α5(IV) to form a triple helix. Results: The intron 46 of COL4A5 mRNA retained 18 bp, resulting in insertion of six amino acids behind the amino acid at position 1,433 of α5(IV). The predicted protein effect of this variant: p. (Pro1432_Gly1433insAspTyrPheValGluIle). As a consequence, the stability of α5(IV) secondary structure was impaired, probably leading to the unusual configuration of α345(IV). Discussion: Normally, splicing variant in COL4A5 gene can lead to phenotypes of XLAS, and the effect is associated with the extent of splicing. The patient reported here carried a c.4298-20T>A splicing variant in COL4A5 gene, and AS was highly suspected based on the pathology results. However, the patient did not manifest any ocular or ear abnormalities. We therefore present the c.4298-20T>A splicing variant in COL4A5 gene as likely-pathogenic splicing variant that leads to XLAS with mild phenotypes.
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Affiliation(s)
- Lei Liang
- Center for Prenatal Diagnosis and Medical Genetics, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Haotian Wu
- School of Public Health, Inner Mongolia Medical University, Hohhot, China
| | - Zeyu Cai
- Department of Nephrology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Jianrong Zhao
- Department of Nephrology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
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Zhang S, Cai Z, Zhang X, Ma T, Kong W. A Calcium Phosphate-Induced Mouse Abdominal Aortic Aneurysm Model. J Vis Exp 2022. [DOI: 10.3791/64173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Liang L, Wang H, Cai Z, Zhao J. [Prenatal diagnosis and genetic analysis of a fetus with Cornelia de Lange syndrome type 1 due to a splicing variant of NIPBL gene]. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2022; 39:1107-1110. [PMID: 36184093 DOI: 10.3760/cma.j.cn511374-20210916-00753] [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: 06/16/2023]
Abstract
OBJECTIVE To explore the genetic etiology of a fetus with Cornelia de Lange syndrome type 1. METHODS Clinical data of the fetus was collected. Genomic DNA was extracted from amniotic fluid and peripheral blood samples of the parents and subjected to low-depth copy number variant sequencing, whole exome sequencing (WES) and Sanger sequencing. Pathogenicity of the candidate variant was predicted based on the guidelines of American College of Medical Genetics and Genomics (ACMG). Minigene assay was used to assess the effect of the variant on mRNA splicing. RESULTS WES revealed that the fetus has harbored a heterozygous c.5808+5gG>A variant in the intron of the NIPBL gene, which was predicted to affect the mRNA splicing. The same variant was not detected in either parent. The variant was not recorded in ExAC, 1000G and dbSNP databases. Comprehensive analysis showed that the variant was deleterious and may result in skipping of exon 31 during mRNA splicing. CONCLUSION The fetus was diagnosed with Cornelia de Lange syndrome type 1. Splicing variant identified by WES may be verified by minigene assay in vitro, which can provide more evidence for the prediction of its pathogenicity.
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Affiliation(s)
- Lei Liang
- Prenatal Diagnosis Center, the Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Nei Monggol 010050, China.
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Gao Z, Pang Z, Lei G, Chen Y, Cai Z, Zhu S, Lin W, Qiu Z, Wang Y, Shen Y, Xu W. Crossing nerve transfer drives sensory input-dependent plasticity for motor recovery after brain injury. Sci Adv 2022; 8:eabn5899. [PMID: 36044580 PMCID: PMC9432844 DOI: 10.1126/sciadv.abn5899] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 07/18/2022] [Indexed: 06/15/2023]
Abstract
Restoring limb movements after central nervous system injury remains a substantial challenge. Recent studies proved that crossing nerve transfer surgery could rebuild physiological connectivity between the contralesional cortex and the paralyzed arm to compensate for the lost function after brain injury. However, the neural mechanism by which this surgery mediates motor recovery remains still unclear. Here, using a clinical mouse model, we showed that this surgery can restore skilled forelimb function in adult mice with unilateral cortical lesion by inducing cortical remapping and promoting corticospinal tract sprouting. After reestablishing the ipsilateral descending pathway, resecting of the artificially rebuilt peripheral nerve did not affect motor improvements. Furthermore, retaining the sensory afferent, but not the motor efferent, of the transferred nerve was sufficient for inducing brain remapping and facilitating motor restoration. Thus, our results demonstrate that surgically rebuilt sensory input triggers neural plasticity for accelerating motor recovery, which provides an approach for treating central nervous system injuries.
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Affiliation(s)
- Zhengrun Gao
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhen Pang
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Gaowei Lei
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Yiming Chen
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Zeyu Cai
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Shuai Zhu
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Weishan Lin
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Zilong Qiu
- The National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Yizheng Wang
- The National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China
| | - Yundong Shen
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
- The National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China
- Department of Hand and Upper Extremity Surgery, Jing‘an District Central Hospital, Fudan University, Shanghai, China
| | - Wendong Xu
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
- The National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China
- Department of Hand and Upper Extremity Surgery, Jing‘an District Central Hospital, Fudan University, Shanghai, China
- Institutes of Brain Science, Fudan University, Shanghai, China
- State Key Laboratory of Medical Neurobiology, Collaborative Innovation Center of Brain Science, Fudan University, Shanghai, China
- Co-innovation Center of Neuroregeneration, Nantong University, 226000 Nantong, China
- Research Unit of Synergistic Reconstruction of Upper and Lower Limbs After Brain Injury, Chinese Academy of Medical Sciences, Beijing, China
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Zhao S, Liu Y, Zhou C, Chen Z, Cai Z, Han J, Xiao J, Xiao Q. Prediction model of delayed graft function based on clinical characteristics combined with serum IL-2 levels. BMC Nephrol 2022; 23:284. [PMID: 35971094 PMCID: PMC9377118 DOI: 10.1186/s12882-022-02908-2] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/04/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Kidney transplantation is an effective treatment for end-stage renal disease (ESRD). Delayed graft function (DGF) is a common complication after kidney transplantation and exerts substantial effects on graft function and long-term graft survival. Therefore, the construction of an effective model to predict the occurrence of DGF is particularly important. METHODS Seventy-one patients receiving their first kidney transplant at the First Affiliated Hospital of Nanchang University from October 2020 to October 2021 were enrolled in the discovery cohort. Based on clinical characteristics and serum markers, a logistic regression model was used to simulate the risk of DGF in the discovery cohort. The DGF prediction model was named the prediction system and was composed of risk factors related to DGF. Thirty-two patients receiving a kidney transplant at the First Affiliated Hospital of Nanchang University from October 2021 to February 2022 were enrolled in the validation cohort. The validation cohort was used to verify the accuracy and reliability of the prediction model. RESULTS Cold ischemia time (CIT), donor history of diabetes mellitus, donor interleukin-2 (IL-2) level and donor terminal creatinine level constitute the prediction system. In the validation test, the area under the receiver operating characteristic curve (AUC) was 0.867 for the prediction system, and good calibration of the model was confirmed in the validation cohort. CONCLUSIONS This study constructed a reliable and highly accurate prediction model that provides a practical tool for predicting DGF. Additionally, IL-2 participates in the kidney injury process and may be a potential marker of kidney injury.
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Affiliation(s)
- Shitao Zhao
- Department of Transplantation, The First Affiliated Hospital of Nanchang University, 17 Yongwai Zhengjie Street, Nanchang, 330006, Jiangxi, China
| | - Yuan Liu
- Department of Transplantation, The First Affiliated Hospital of Nanchang University, 17 Yongwai Zhengjie Street, Nanchang, 330006, Jiangxi, China
| | - Chen Zhou
- Department of Transplantation, The First Affiliated Hospital of Nanchang University, 17 Yongwai Zhengjie Street, Nanchang, 330006, Jiangxi, China
| | - Zide Chen
- Department of Transplantation, The First Affiliated Hospital of Nanchang University, 17 Yongwai Zhengjie Street, Nanchang, 330006, Jiangxi, China
| | - Zeyu Cai
- Department of Transplantation, The First Affiliated Hospital of Nanchang University, 17 Yongwai Zhengjie Street, Nanchang, 330006, Jiangxi, China
| | - JiaLiang Han
- Department of Transplantation, The First Affiliated Hospital of Nanchang University, 17 Yongwai Zhengjie Street, Nanchang, 330006, Jiangxi, China
| | - Jiansheng Xiao
- Department of Transplantation, The First Affiliated Hospital of Nanchang University, 17 Yongwai Zhengjie Street, Nanchang, 330006, Jiangxi, China.
| | - Qi Xiao
- Department of Transplantation, The First Affiliated Hospital of Nanchang University, 17 Yongwai Zhengjie Street, Nanchang, 330006, Jiangxi, China.
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van Egmond S, Cai Z, Nava V, Rapaport B, Ko J, Chiou A, Sarin K, Tang J, Bousheri S, Zhang L, Linos E. 349 Development of a digital tool for home-based monitoring of skin disease for older adults. J Invest Dermatol 2022. [PMCID: PMC9296962 DOI: 10.1016/j.jid.2022.05.358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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van Egmond S, de Vere Hunt I, Cai Z, Rizk N, Wakkee M, Chren M, Goldfarb N, Simard J, Linos E. 374 529 dermatologists’ perspectives on active surveillance for low-risk basal cell carcinoma. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Wang Z, Zhao Z, Xia Y, Cai Z, Wang C, Shen Y, Liu R, Qin H, Jia J, Yuan G. Potential biomarkers in the fibrosis progression of nonalcoholic steatohepatitis (NASH). J Endocrinol Invest 2022; 45:1379-1392. [PMID: 35226336 DOI: 10.1007/s40618-022-01773-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/17/2022] [Indexed: 12/13/2022]
Abstract
PURPOSE Fibrosis is the only histological feature reflecting the severity and prognosis of nonalcoholic steatohepatitis (NASH). We aim to explore novel genes associated with fibrosis progression in NASH. METHODS Two human RNA-seq datasets were downloaded from the public database. Weighted gene co-expression network analysis (WGCNA) was used to identify their co-expressed modules and further bioinformatics analysis was performed to identify hub genes within the modules. Finally, based on two single-cell RNA-seq datasets from mice and one microarray dataset from human, we further observed the expression of hub genes in different cell clusters and liver tissues. RESULTS 7 hub genes (SPP1, PROM1, SOX9, EPCAM, THY1, CD34 and MCAM) associated with fibrosis progression were identified. Single-cell RNA-seq analysis revealed that those hub genes were expressed by different cell clusters such as cholangiocytes, natural killer (NK) cells, and hepatic stellate cells (HSCs). We also found that SPP1 and CD34 serve as markers of different HSCs clusters, which are associated with inflammatory response and fibrogenesis, respectively. Further study suggested that SPP1, SOX9, MCAM and THY1 might be related to NASH-associated hepatocellular carcinoma (HCC). Receiver operating characteristic (ROC) analysis showed that the high expression of these genes could well predict the occurrence of HCC. At the same time, there were significant differences in metabolism-related pathway changes between different HCC subtypes, and SOX9 may be involved in these changes. CONCLUSIONS The present study identified novel genes associated with NASH fibrosis and explored their effects on fibrosis from a single-cell perspective that might provide new ideas for the early diagnosis, monitoring, evaluation, and prediction of fibrosis progression in NASH.
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Affiliation(s)
- Z Wang
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu, China
| | - Z Zhao
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu, China
| | - Y Xia
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu, China
| | - Z Cai
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu, China
| | - C Wang
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu, China
| | - Y Shen
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu, China
| | - R Liu
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu, China
| | - H Qin
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu, China
| | - J Jia
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu, China.
| | - G Yuan
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu, China.
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Cai Z, Mu M, Zhang B. P-223 An eleven-lncRNA signature predicts overall survival in patients with gastric cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Mu M, Cai Z, Shen C, Wang J, Zhao Z, Zhang B. P-220 The efficacy of preoperative imatinib in locally advanced gastrointestinal stromal tumors: A single-center retrospective analysis. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Cai Z, Zhao Z, Mu M, Shen C, Zhang B. P-215 Liver transplantation for hilar cholangiocarcinoma: A systematic review and meta-analysis. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Cai Z, Chen WM. [Interpretation of treatment of relapsed/refractory multiple myeloma patients in the guidelines for the diagnosis and management of multiple myeloma in China(2022 revision)]. Zhonghua Nei Ke Za Zhi 2022; 61:469-473. [PMID: 35488595 DOI: 10.3760/cma.j.cn112138-20220414-00278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Z Cai
- Department of Bone Marrow Transplantation,the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - W M Chen
- Department of Hematology,Beijing Chao-yang Hospital,Capital Medical University, Beijing 100020, China
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Cai Z, Huang Y, Tang JH, Zhang R, Chen JK, Wang J, Ma YY. [Heparin-binding hemagglutinin as a composition antigen of tuberculosis vaccine exerts protective immune effects by inducing IL-17]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:370-376. [PMID: 35381662 DOI: 10.3760/cma.j.cn112150-20211206-01122] [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: 06/14/2023]
Abstract
To explore the protective immune effect induced by mucosal delivery heparin-binding hemagglutinin (HBHA)-a candidate vaccine antigen of Mycobacterium tuberculosis. Female C57BL/6 mice were between 6 and 8 weeks of age before experimental use. Thirty mice received different immunization strategies and were randomly divided into the control group, the early secreting antigen target-6 (ESAT-6) intranasal immunization group, the HBHA intranasal immunization group, the BCG priming PBS control group, or BCG priming HBHA boost group, 6 mice in each group. In order to analyzed the immune effect, the concentrations of plasma Interleukin-17A (IL-17A) and other cytokines were measured by ELISA. Quantitative real-time PCR analyses were performed to detect the relative quantity (RQ) mRNA of IL-17A in the lung. The lung tissue sections were stained to detect the formation of the tertiary lymphoid structures. The chemokines contributed to formation of the tertiary lymphoid structures were also measured. Flow cytometry was used to detect the frequency of Th1 and Th17 cells in the system. Sixty mice in the BCG priming PBS control group and the BCG priming HBHA boost group were sacrificed at different time points after infection to count the lung bacterial burden. The concentrations of plasma IL-17A and relative quantity of lung IL-17A mRNA were highest in the BCG priming HBHA boost group [(14.76±4.73) pg/mL,RQ (12.27±6.71)], which was significantly higher than the control group [(5.57±2.95) pg/mL,RQ (1.30±0.97)] (t=4.213, P<0.001; t=5.984, P<0.001), and also significantly higher than the BCG priming PBS control group [(6.81±2.18) pg/mL,RQ (1.44±1.16)] (t=3.646 P=0.001; t=6.185 P<0.001). Compared with the BCG priming PBS control group (0.38±0.38)% the frequency of spleen Th17 cells were also significantly increased (t=-0.280, P=0.048) in the BCG-primary HBHA boost group (1.02±0.34)%. In addition, HBHA boosting could promote better formation of the tertiary lymphoid structures in the lung, and decrease the bacterial load on the early stage after BCG challenge. Collectively, mucosal delivery of HBHA can effectively enhance the protective effect after BCG vaccination, and it is a potential candidate vaccine component.
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Affiliation(s)
- Z Cai
- Department of Clinical Laboratory, Air Force Medical Center, Beijing 100142, China
| | - Y Huang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - J H Tang
- Department of Clinical Laboratory, Air Force Medical Center, Beijing 100142, China
| | - R Zhang
- Department of Clinical Laboratory, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - J K Chen
- Department of Clinical Laboratory, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - J Wang
- Department of Clinical Laboratory, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - Y Y Ma
- Department of Clinical Laboratory, Air Force Medical Center, Beijing 100142, China
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Shi S, Du Y, Zou Y, Niu J, Cai Z, Wang X, Qiu F, Ding Y, Yang G, Wu Y, Xu Y, Zhu Q. Rational Design for Nitroreductase (NTR)-Responsive Proteolysis Targeting Chimeras (PROTACs) Selectively Targeting Tumor Tissues. J Med Chem 2022; 65:5057-5071. [PMID: 35175763 DOI: 10.1021/acs.jmedchem.1c02221] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The catalytic properties of proteolysis targeting chimeras (PROTACs) may lead to uncontrolled off-tissue target degradation that causes potential toxicity, limiting their clinical applications. The precise control of this technology in a tissue-selective manner can minimize the potential toxicity. Hypoxia is a hallmark of most solid tumors, accompanied by elevated levels of nitroreductase (NTR). Based on this character, we presented a type of NTR-responsive PROTACs to selectively degrade proteins of interest (POI) in tumor tissues. Compound 17-1 was the first NTR-responsive PROTAC synthesized by incorporating the caging group on the Von Hippel-Lindau (VHL) E3 ubiquitin ligase ligand. It could be activated by NTR to release the active PROTAC 17 to efficiently degrade the EGFR protein and subsequently exert antitumor efficacy. Thus, a general strategy for the precise control of PROTAC to induce POI degradation in tumor tissues by NTR was established, which provided a generalizable platform for the development of NTR-controlled PROTACs to achieve selective degradation.
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Affiliation(s)
- Shi Shi
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Yu Du
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Yi Zou
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Jing Niu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Zeyu Cai
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Xiaonan Wang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Feihuang Qiu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Yi Ding
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Gengchen Yang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Yunze Wu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Yungen Xu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.,Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Qihua Zhu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.,Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
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Yang L, Dai R, Wu H, Cai Z, Xie N, Zhang X, Shen Y, Gong Z, Jia Y, Yu F, Zhao Y, Lin P, Ye C, Hu Y, Fu Y, Xu Q, Li Z, Kong W. Unspliced XBP1 Counteracts β-catenin to Inhibit Vascular Calcification. Circ Res 2021; 130:213-229. [PMID: 34870453 DOI: 10.1161/circresaha.121.319745] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background: Vascular calcification is a prevalent complication in chronic kidney disease and contributes to increased cardiovascular morbidity and mortality. XBP1 (X-box binding protein 1), existing as the unspliced (XBP1u) and spliced (XBP1s) forms, is a key component of the endoplasmic reticulum stress involved in vascular diseases. However, whether XBP1u participates in the development of vascular calcification remains unclear. Methods: We aim to investigate the role of XBP1u in vascular calcification.XBP1u protein levels were reduced in high phosphate (Pi)-induced calcified vascular smooth muscle cells (VSMCs), calcified aortas from mice with adenine diet-induced chronic renal failure (CRF) and calcified radial arteries from CRF patients. Results: Inhibition of XBP1u rather than XBP1s upregulated in the expression of the osteogenic markers runt-related transcription factor 2 (Runx2) and msh homeobox2 (Msx2), and exacerbated high Pi-induced VSMC calcification, as verified by calcium deposition and Alizarin red S staining. In contrast, XBP1u overexpression in high Pi-induced VSMCs significantly inhibited osteogenic differentiation and calcification. Consistently, SMC-specific XBP1 deficiency in mice markedly aggravated the adenine diet- and 5/6 nephrectomy-induced vascular calcification compared with that in the control littermates. Further interactome analysis revealed that XBP1u bound directly to β-catenin, a key regulator of vascular calcification, via aa 205-230 in its C-terminal degradation domain. XBP1u interacted with β-catenin to promote its ubiquitin-proteasomal degradation and thus inhibited β-catenin/T-cell factor (TCF)-mediated Runx2 and Msx2 transcription. Knockdown of β-catenin abolished the effect of XBP1u deficiency on VSMC calcification, suggesting a β-catenin-mediated mechanism. Moreover, the degradation of β-catenin promoted by XBP1u was independent of glycogen synthase kinase 3β (GSK-3β)-involved destruction complex. Conclusions: Our study identified XBP1u as a novel endogenous inhibitor of vascular calcification by counteracting β-catenin and promoting its ubiquitin-proteasomal degradation, which represents a new regulatory pathway of β-catenin and a promising target for vascular calcification treatment.
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Affiliation(s)
- Liu Yang
- Physiology and Pathophysiology, Peking University, CHINA
| | - Rongbo Dai
- Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, CHINA
| | - Hao Wu
- Physiology and Pathophysiology, Peking University, CHINA
| | - Zeyu Cai
- Physiology and Pathophysiology, Peking University, CHINA
| | - Nan Xie
- Physiology and Pathophysiology, Peking University, CHINA
| | - Xu Zhang
- Physiology and Pathophysiology, Peking University, CHINA
| | - Yicong Shen
- Physiology and Pathophysiology, Peking University, CHINA
| | - Ze Gong
- Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, CHINA
| | - Yiting Jia
- Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, CHINA
| | - Fang Yu
- School of Basic Medical Sciences, Peking University
| | - Ying Zhao
- Biochemistry and Molecular Biology, Peking University, CHINA
| | - Pinglan Lin
- Nephrology, Shanghai University of Traditional Chinese Medicine, CHINA
| | - Chaoyang Ye
- Nephrology, Shanghai University of Traditional Chinese Medicine, CHINA
| | - Yanhua Hu
- Cardiology, Zhejiang University, CHINA
| | - Yi Fu
- Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, CHINA
| | - Qingbo Xu
- Cardiology, Zhejing University, CHINA
| | - Zhiqing Li
- Physiology and Pathophysiology, Peking University, CHINA
| | - Wei Kong
- Physiology and Pathophysiology, Peking University, CHINA
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Song H, Chen Y, Cai Z, Wu X, Zhang S. Nitrogen-influenced competition between the genders of Salix rehderiana. Tree Physiol 2021; 41:2375-2391. [PMID: 34137865 DOI: 10.1093/treephys/tpab083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 06/13/2021] [Indexed: 06/12/2023]
Abstract
Male and female willow plants show spatial segregation of genders along the environmental gradients. The skewed gender ratio of willows is related not only to altitude, but also to nutrient status and sexual competition, which can affect their growth and defense by altering secondary metabolite production. The relationship between metabolites and nutrients in the two genders of Salix rehderiana was explored in the Gongga Mountain. We found that the gender ratio was altered with a change in soil nitrogen (N) status; in the high N habitats, secondary metabolites accumulated in males. Furthermore, a pot experiment was conducted to test the effect of N supply on gender competition in S. rehderiana. Sufficient N supply stimulated females to produce amino acids and carbon (C)-containing secondary metabolites for maintaining their C-N balance, but extra N for males was used for growth to occupy more space. Nitrogen supply induced foliar nutrient imbalances and growth of opportunistic species, allowing them to outcompete neighbors. Better C allocation and storage in male than female willows would benefit intersexual competitiveness of males if environment N increases. Competition between the genders has a significant correlation with skewed gender ratio, spatial separation and resource utilization. Female willows would suffer fiercer competition for space by males with the increased soil N, which would result in the gender ratio alteration. Therefore, gender ratio of willows is likely to convert to gender balance from female-biased with long-term N deposition in the future.
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Affiliation(s)
- Haifeng Song
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China
| | - Yao Chen
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China
| | - Zeyu Cai
- Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Xinxin Wu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China
| | - Sheng Zhang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China
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Zhang Y, Betran AP, Li X, Liu D, Yuan N, Shang L, Lin W, Tu S, Wang L, Wu X, Zhu T, Zhang Y, Lu Z, Zheng L, Gu C, Fang J, Liu Z, Ma L, Cai Z, Yang X, Li H, Zhang H, Zhao X, Yan L, Wang L, Sun X, Luo Q, Liu L, Zhu J, Qin W, Yao Q, Dong S, Yang Y, Cui Z, He Y, Feng X, He L, Zhang H, Zhang L, Wang X, Souza JP, Qi H, Duan T, Zhang J. What is an appropriate caesarean delivery rate for China: a multicentre survey. BJOG 2021; 129:138-147. [PMID: 34559941 PMCID: PMC9297886 DOI: 10.1111/1471-0528.16951] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2021] [Indexed: 11/30/2022]
Abstract
Objective To assess the current status of caesarean delivery (CD) in China, propose reference CD rates for China overall, and by regions, investigate the main indications for CDs and identify possible areas for safe reduction. Design A multicentre cross‐sectional study. Setting A total of 94 hospitals across 23 provinces in China. Population A total of 73 977 randomly selected deliveries. Methods We used a modified Robson classification to characterise CDs in subgroups and by regions, and the World Health Organization (WHO) C‐Model to calculate reference CD rates. Main outcome measures CD rates in China. Results In 2015–2016, the overall CD rate in China was 38.9% (95% CI 38.6–39.3%). Considering the obstetric characteristics of the population, the multivariable model‐based reference CD rate was estimated at 28.5% (95% CI 28.3–28.8%). Accordingly, an absolute reduction of 10.4% (or 26.7% relative reduction) may be considered. The CD rate varied substantially by region. Previous CD was the most common indication in all regions, accounting for 38.2% of all CDs, followed by maternal request (9.8%), labour dystocia (8.3%), fetal distress (7.7%) and malpresentation (7.6%). Overall, 12.7% of women had prelabour CDs, contributing to 32.8% of the total CDs. Conclusions Nearly 39% of births were delivered by caesarean in China but a reduction of this rate by a quarter may be considered attainable. Repeat CD contributed more than one‐third of the total CDs. Given the large variation in maternal characteristics, region‐specific or even hospital‐specific reference CD rates are needed for precision management of CD. Tweetable abstract The caesarean rate in 2015–2016 in China was 38.9%, whereas the reference rate was 28.5%. The caesarean rate in 2015–2016 in China was 38.9%, whereas the reference rate was 28.5%. Linked article This article is commented on by M Varner, p. 148 in this issue. To view this mini commentary visit https://doi.org/10.1111/1471-0528.16953.
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Affiliation(s)
- Y Zhang
- Ministry of Education - Shanghai Key Laboratory of Children's Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - A P Betran
- UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction, Department of Reproductive Health and Research, World Health Organization (WHO), Geneva, Switzerland
| | - X Li
- Obstetrics and Gynaecology Hospital of Fudan University, Shanghai, China
| | - D Liu
- Dongguan City Maternal and Child Health Hospital, Southern Medical University, Guangdong, China
| | - N Yuan
- Department of Obstetrics and Gynaecology, The Second Hospital Affiliated to Shaanxi University of Chinese Medicine, Shaanxi, China
| | - L Shang
- Department of Obstetrics, The Maternal and Child Health Hospital of Xinxiang, Henan, China
| | - W Lin
- Department of Obstetrics, The Maternal and Child Health Hospital of Dalian, Liaoning, China
| | - S Tu
- Department of Obstetrics and Gynaecology, Southwest Medical University, Sichuan, China
| | - L Wang
- Department of Obstetrics and Gynaecology, The First Hospital Affiliated to Kunming Medical University, Yunnan, China
| | - X Wu
- Department of Obstetrics, Jiangsu Women and Child Health Hospital, Jiangsu, China
| | - T Zhu
- The First People's Hospital of Zhaotong, Kunming Medical University, Yunnan, China
| | - Y Zhang
- Department of Obstetrics, The Maternal and Child Health Hospital of Qujing, Yunnan, China
| | - Z Lu
- Suining Central Hospital, Chongqing Medical University, Sichuan, China
| | - L Zheng
- Taizhou Hospital of Zhejiang Province, Zhejiang, China
| | - C Gu
- Yangzhou Maternal and Child Care Service Centre, Jiangsu, China
| | - J Fang
- Qingdao Chengyang People's Hospital, Shandong First Medical University, Shandong, China
| | - Z Liu
- Department of Obstetrics, The Maternal and Child Health Hospital of Baoji, Shaanxi, China
| | - L Ma
- Yanshi City People's Hospital, Henan, China
| | - Z Cai
- Department of Obstetrics and Gynaecology, Aviation Hospital of Beijing, China Medical University, Beijing, China
| | - X Yang
- Department of Obstetrics, The Maternal and Child Health Hospital of Luohu District, Shenzhen, China
| | - H Li
- Yanan University Affiliated Hospital, Shaanxi, China
| | - H Zhang
- Haikou Hospital of the Maternal and Child Health, Hainan, China
| | - X Zhao
- The First People's Hospital of Taizhou, Wenzhou Medical University, Zhejiang, China
| | - L Yan
- The Second Affiliated Hospital of Hebei North University, Hebei, China
| | - L Wang
- Department of Obstetrics and Gynaecology, The 174th Hospital of the Chinese People's Liberation Army, Xiamen University, Fujian, China
| | - X Sun
- Puyang Maternal and Child Care Centres, Henan, China
| | - Q Luo
- Luzhou People's Hospital, Sichuan, China
| | - L Liu
- Affiliated Hospital of Jiangsu University, Jiangsu, China
| | - J Zhu
- The Second People's Hospital of Tongxiang, Zhejiang, China
| | - W Qin
- Department of Obstetrics and Gynaecology, Aviation Hospital of Beijing, China Medical University, Beijing, China
| | - Q Yao
- The Central Hospital of Shaoyang, University of South China, Hunan, China
| | - S Dong
- Affiliated Hospital of Zunyi Medical University, Guizhou, China
| | - Y Yang
- The First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Z Cui
- Department of Obstetrics, The Maternal and Child Health Hospital of Cangzhou, Hebei, China
| | - Y He
- The Second People's Hospital of Qingyuan City, Guangdong, China
| | - X Feng
- Department of Obstetrics and Gynaecology, Fujian Medical University Union Hospital, Fujian Medical University, Fujian, China
| | - L He
- The People's Hospital of Pengzhou, Sichuan, China
| | - H Zhang
- Department of Obstetrics, Eastern District of the Fourth Hospital of Hebei Medical University, Hebei, China
| | - L Zhang
- Ministry of Education - Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Wang
- Department of Obstetrics and Gynaecology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J P Souza
- Department of Social Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - H Qi
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - T Duan
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - J Zhang
- Ministry of Education - Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Kwantwi LB, Wang S, Zhang W, Peng W, Cai Z, Sheng Y, Xiao H, Wang X, Wu Q. Tumor-associated neutrophils activated by tumor-derived CCL20 (C-C motif chemokine ligand 20) promote T cell immunosuppression via programmed death-ligand 1 (PD-L1) in breast cancer. Bioengineered 2021; 12:6996-7006. [PMID: 34519637 PMCID: PMC8806641 DOI: 10.1080/21655979.2021.1977102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Breast cancer is the leading cause of cancer-related death among women despite the significant improvement in diagnosis and treatment. Tumor-associated neutrophils have been shown to suppress antitumor functions of the host. However, how breast cancer tumor microenvironment influences the phenotype and functions of neutrophils to potentiate T cell immunosuppression is unknown. Herein, neutrophils isolated from peripheral blood of healthy donors were treated with supernatants from breast cancer cell lines or recombinant human CCL20. PD-L1 expression on neutrophils was then evaluated by immunofluorescence and flow cytometry. Neutrophils and Jurkat T cells were cocultured to evaluate the effect of tumor-associated neutrophils on T cell functions. Finally, immunohistochemical staining was performed to evaluate the clinical relevance of neutrophils infiltrating breast tumor tissues. Tumor-derived CCL20 activated and upregulated PD-L1 expression on neutrophils. A significant positive correlation was found between CCL20 and CD66b+ neutrophils in tumor tissues. Through in vitro experiment, tumor-associated neutrophils (TANs) effectively suppressed T cell immunity which was reversed upon PD-L1 blockade.Moreover, a high density of TANs was associated with short disease free survival in breast cancer patients. Furthermore, receiver operating curve showed that the density of TANs could accurately predict disease-free survival in breast cancer patients. Our findings suggest that targeting TANs via CCL20 immunosuppressive pathway may be a novel therapeutic strategy for breast cancer treatment.
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Affiliation(s)
- Louis Boafo Kwantwi
- Department of Pathology, School of Basic Medical Science, Anhui Medical University, Hefei, PR China
| | - Shujing Wang
- Department of Immunology, School of Basic Medical Science, Anhui Medical University, Hefei, PR China
| | - Wenjun Zhang
- Department of Pathology, School of Basic Medical Science, Anhui Medical University, Hefei, PR China
| | - Weidong Peng
- Department of Pathology, School of Basic Medical Science, Anhui Medical University, Hefei, PR China
| | - Zeyu Cai
- Department of Pathology, School of Basic Medical Science, Anhui Medical University, Hefei, PR China
| | - Youjing Sheng
- Department of Pathology, School of Basic Medical Science, Anhui Medical University, Hefei, PR China
| | - Han Xiao
- Department of Pathology, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
| | - Xian Wang
- Department of Pathology, The Second Affiliated Hospital of Anhui Medical University, Hefei, PR China
| | - Qiang Wu
- Department of Pathology, School of Basic Medical Science, Anhui Medical University, Hefei, PR China.,Department of Pathology, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
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James R, Admire B, Sisserson T, Cai Z, Dumas M, Inge L, Baumann J, Towne P, Dalvi D, ElGabry E. 1125P Analytical assessment of a diagnostic immunohistochemical assay for the detection of folate receptor-ɑ in epithelial ovarian cancers. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Cai Z, Wang W, Pan BH, Xie C, Yang P, Wang XW, Ouyang Y, Liu GQ, Wu KM, Le TM, Huang JH. [Choices of emergency treatment and surgical method for ruptured abdominal aortic aneurysms]. Zhonghua Yi Xue Za Zhi 2021; 101:2288-2292. [PMID: 34333943 DOI: 10.3760/cma.j.cn112137-20201216-03368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the emergency management process of ruptured abdominal aortic aneurysm (RAAA), and analyze the perioperative mortality factors of different surgical methods. Methods: The emergency data and hospitalization data of 91 patients with ruptured abdominal aortic aneurysm in Xiangya Hospital of Central South University from June 2010 to June 2019 were retrospectively analyzed.Twelve of the patients died preoperatively due to excessive blood loss, and the remaining 79 patients were hospitalized for open surgery (OSR) or endovascular repair (EVAR).The differences in age, time to hospital arrival, emergency preparation time, first creatinine value, emergency infusion volume, preoperative drop in blood pressure, preoperative use of vasoactive drugs and iliac artery involvement were compared between preoperative death group (n=12) and preoperative survival group (n=79), OSR group (n=50) and EVAR group (n=29), postoperative death group (n=23) and postoperative survival group (n=56). Results: Seventy-nine patients received open surgery or endovascular repair, and 23 died after operation. Age, time to hospital arrival, first creatinine value and emergency infusion volume were (77±11) years, (18±5)h, (469±150) μmol/L, (4 140±1 743) ml in the preoperative death group and (70±10) years, (12±8) h, (228±174) μmol/L, (1 358±1 211) ml in the preoperative survival group, respectively, and the differences were statistically significant (all P<0.05). There were no significant differences in preoperative data, intraoperative treatment and postoperative perioperative mortality between the open surgery group and the endovascular repair group (all P>0.05). The intraoperative blood loss, operation time and aortic occlusion rate in the endovascular repair group were 100 (50, 175) ml, (3.2±0.9) h, 13.8%, respectively, which were better than that in the open surgery group 1700 (600, 3425) ml, (5.2±1.1) h, 100%. The differences were statistically significant (all P<0.05). Age, emergency preparation time, first creatinine value, emergency infusion volume, blood pressure decline rate and vasoactive drug utilization rate in the death group were (77±8) years, (4.1±1.7) h, (456±172) μmol/L, (2 024±1 687) ml, 100%, 100%, respectively, and (68±10) years, (2.7±2.2) h, (135±26) μmol/L, (1 085±825) ml, 21.4%, 12.5% in the survival group, respectively. The differences were statistically significant (all P<0.05). Conclusions: Age, emergency preparation time, first creatinine value, emergency infusion volume, decreased blood pressure and use of vasoactive drugs are all associated with perioperative death in patients with ruptured abdominal aortic aneurysm. EVAR surgery is a better choice if conditions exist.
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Affiliation(s)
- Z Cai
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - W Wang
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - B H Pan
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - C Xie
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - P Yang
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - X W Wang
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - Y Ouyang
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - G Q Liu
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - K M Wu
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - T M Le
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
| | - J H Huang
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha 413000, China
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Mu M, Cai Z, Shen C, Wang J, Zhang B. P-93 The characteristics and prognosis of extragastrointestinal stromal tumors: A single center retrospective analysis of 31 patients. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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45
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Cai Z, Liu C, Shen C, Jiang Z, Mu M, Zhang B. P-227 Comparative safety and tolerability of approved PARP inhibitors in cancer: A systematic review and network meta-analysis. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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46
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Cai Z, Yang C, Liao J, Song H, Zhang S. Sex-biased genes and metabolites explain morphologically sexual dimorphism and reproductive costs in Salix paraplesia catkins. Hortic Res 2021; 8:125. [PMID: 34059667 PMCID: PMC8166972 DOI: 10.1038/s41438-021-00566-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/16/2021] [Accepted: 03/22/2021] [Indexed: 05/10/2023]
Abstract
Dioecious species evolved from species with monomorphic sex systems in order to achieve overall fitness gains by separating male and female functions. As reproductive organs, unisexual flowers have different reproductive roles and exhibit conspicuous sexual dimorphism. To date, little is known about the temporal variations in and molecular mechanisms underlying the morphology and reproductive costs of dioecious flowers. We investigated male and female flowers of Salix paraplesia in three flowering stages before pollination (the early, blooming and late stages) via transcriptional sequencing as well as metabolite content and phenotypic analysis. We found that a large number of sex-biased genes, rather than sex-limited genes, were responsible for sexual dimorphism in S. paraplesia flowers and that the variation in gene expression in male flowers intensified this situation throughout flower development. The temporal dynamics of sex-biased genes derived from changes in reproductive function during the different flowering stages. Sexually differentiated metabolites related to respiration and flavonoid biosynthesis exhibited the same bias directions as the sex-biased genes. These sex-biased genes were involved mainly in signal transduction, photosynthesis, respiration, cell proliferation, phytochrome biosynthesis, and phenol metabolism; therefore, they resulted in more biomass accumulation and higher energy consumption in male catkins. Our results indicated that sex-biased gene expression in S. paraplesia flowers is associated with different reproductive investments in unisexual flowers; male flowers require a greater reproductive investment to meet their higher biomass accumulation and energy consumption needs.
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Affiliation(s)
- Zeyu Cai
- Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Congcong Yang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Jun Liao
- College of Geography and Tourism, Chongqing Normal University, Chongqing, China
| | - Haifeng Song
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Sheng Zhang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China.
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Vicente-Serrano SM, Peña-Angulo D, Murphy C, López-Moreno JI, Tomas-Burguera M, Domínguez-Castro F, Tian F, Eklundh L, Cai Z, Alvarez-Farizo B, Noguera I, Camarero JJ, Sánchez-Salguero R, Gazol A, Grainger S, Conradt T, Boincean B, El Kenawy A. The complex multi-sectoral impacts of drought: Evidence from a mountainous basin in the Central Spanish Pyrenees. Sci Total Environ 2021; 769:144702. [PMID: 33736257 DOI: 10.1016/j.scitotenv.2020.144702] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/18/2020] [Accepted: 12/22/2020] [Indexed: 06/12/2023]
Abstract
We analyzed the impacts of drought severity on a variety of sectors in a topographically complex basin (the upper Aragón basin 2181 km2) in the Central Spanish Pyrenees. Using diverse data sources including meteorological and hydrological observations, remote sensing and tree rings, we analyze the possible hydrological implications of drought occurrence and severity on water availability in various sectors, including downstream impacts on irrigation water supply for crop production. Results suggest varying responses in forest activity, secondary growth, plant phenology, and crop yield to drought impacts. Specifically, meteorological droughts have distinct impacts downstream, mainly due to water partitioning between streamflow and irrigation channels that transport water to crop producing areas. This implies that drought severity can extend beyond the physical boundaries of the basin, with impacts on crop productivity. This complex response to drought impacts makes it difficult to develop objective basin-scale operational definitions for monitoring drought severity. Moreover, given the high spatial variability in responses to drought across sectors, it is difficult to establish reliable drought thresholds from indices that are relevant across all socio-economic sectors. The anthropogenic impacts (e.g. water regulation projects, ecosystem services, land cover and land use changes) pose further challenges to assessing the response of different systems to drought severity. This study stresses the need to consider the seasonality of drought impacts and appropriate drought time scales to adequately assess and understand their complexity.
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Affiliation(s)
- S M Vicente-Serrano
- Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (IPE-CSIC), Zaragoza, Spain.
| | - D Peña-Angulo
- Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (IPE-CSIC), Zaragoza, Spain
| | - C Murphy
- Irish Climate Analysis and Research UnitS (ICARUS), Department of Geography, Maynooth University, Maynooth, Ireland
| | - J I López-Moreno
- Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (IPE-CSIC), Zaragoza, Spain
| | - M Tomas-Burguera
- Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas (EEAD-CSIC), Zaragoza, Spain
| | - F Domínguez-Castro
- Aragonese Agency for Research and Development Researcher (ARAID), Spain; Department of Geography, University of Zaragoza, Zaragoza, Spain
| | - F Tian
- Department of Geography, Lund University, Lund, Sweden
| | - L Eklundh
- Department of Geography, Lund University, Lund, Sweden
| | - Z Cai
- Department of Geography, Lund University, Lund, Sweden
| | - B Alvarez-Farizo
- Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (IPE-CSIC), Zaragoza, Spain
| | - I Noguera
- Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (IPE-CSIC), Zaragoza, Spain
| | - J J Camarero
- Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (IPE-CSIC), Zaragoza, Spain
| | - R Sánchez-Salguero
- Departamento Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, 41013 Sevilla, Spain
| | - A Gazol
- Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (IPE-CSIC), Zaragoza, Spain
| | - S Grainger
- Irish Climate Analysis and Research UnitS (ICARUS), Department of Geography, Maynooth University, Maynooth, Ireland
| | - T Conradt
- Potsdam Institute for Climate Impact Research, Potsdam, Germany
| | - B Boincean
- Selectia Research Institute Of Field Crops, Balti, Republic of Moldova
| | - A El Kenawy
- Department of Geography, Mansoura University, Mansoura, Egypt; Department of Geography, Sultan Qaboos University, Al Khoud, Muscat, Oman
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Abstract
Candida pelliculosa is a rare fungal cause of neonatal sepsis. Premature
and very low birthweight infants are at especially high risk of neonatal fungal
infections. There have been no reports of C. pelliculosa infection in
Anhui Province, China. Here, we report a case of C. pelliculosa fungemia
in a newborn boy admitted 30 minutes after delivery with grunting, cyanosis, and asphyxia.
C. pelliculosa was identified as the causative organism using blood
culture, DNA sequencing, and mass spectrometric analysis. After 20 days of fluconazole
therapy, the patient’s symptoms stabilized. Together with other relevant literature, this
report provides evidence that premature neonates are at increased risk of fungal
infections and that C. pelliculosa fungemia should be diagnosed early
using blood cultures to enable effective treatment. Fluconazole may be effective for
treating neonates with C. pelliculosa infection.
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Affiliation(s)
- Zeyu Cai
- Department of Pathology, Anhui Medical University, Hefei, Anhui, P.R China
| | - Wei Wei
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, P.R China
| | - Zhongle Cheng
- Department of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, P.R China
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Abstract
Significance: The vascular extracellular matrix (ECM) not only provides mechanical stability but also manipulates vascular cell behaviors, which are crucial for vascular function and homeostasis. ECM remodeling, which alters vascular wall mechanical properties and exposes vascular cells to bioactive molecules, is involved in the development and progression of hypertension. Recent Advances: This brief review summarized the dynamic changes in ECM components and their modification and degradation during hypertension and after antihypertensive treatment. We also discussed how alterations in the ECM amount, assembly, mechanical properties, and degradation fragment generation provide input into the pathological process of hypertension. Critical Issues: Although the relevance between ECM remodeling and hypertension has been recognized, the underlying mechanism by which ECM remodeling initiates the development of hypertension remains unclear. Therefore, the modulation of ECM remodeling on arterial stiffness and hypertension in genetically modified rodent models is summarized in this review. The circulating biomarkers based on ECM metabolism and therapeutic strategies targeting ECM disorders in hypertension are also introduced. Future Directions: Further research will provide more comprehensive understanding of ECM remodeling in hypertension by the application of matridomic and degradomic approaches. The better understanding of mechanisms underlying vascular ECM remodeling may provide novel potential therapeutic strategies for preventing and treating hypertension. Antioxid. Redox Signal. 34, 765-783.
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Affiliation(s)
- Zeyu Cai
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Ze Gong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Zhiqing Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Li Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
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50
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Cai Z, Lei G, Li J, Shen Y, Gu Y, Feng J, Xu W. Aberrant central plasticity underlying synchronous sensory phenomena in brachial plexus injuries after contralateral cervical seventh nerve transfer. Brain Behav 2021; 11:e02064. [PMID: 33548117 PMCID: PMC8035429 DOI: 10.1002/brb3.2064] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/29/2020] [Accepted: 01/17/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUNDS Contralateral cervical seventh (C7) nerve transfer aids motor and sensory recovery in total brachial plexus avulsion injuries (TBPI), but synchronous sensation often persists postoperatively. The mechanism underlying synchronous sensory phenomena remain largely unknown. OBJECTIVE To investigate the role of central plasticity in sensory recovery after contralateral C7 nerve transfer. METHODS Sixteen right TBPI patients who received contralateral C7 nerve transfer for more than 2 years were included. Sensory evaluations included Semmes-Weinstein monofilament assessment (SWM), synchronous sensation test, and sensory evoked action potential (SNAP) test. Smaller value in the SWM assessment and larger amplitude of SNAP indicates better tactile sensory. Functional magnetic resonance imaging was performed while stimulations delivered to each hand separately in block-design trials for central plasticity analysis. RESULTS The SWM value of the injured right hand was increased compared with the healthy left side (difference: 1.76, 95% confidence interval: 1.37-2.15, p < .001), and all 16 patients developed synchronous sensation. In functional magnetic resonance imaging analysis, sensory representative areas of the injured right hand were located in its ipsilateral S1, and 23.4% of this area overlapped with the representative area of the left hand. The ratio of overlap for each patient was significantly correlated with SWM value and SNAP amplitude of the right hand. CONCLUSION The tactile sensory functioning of the injured hand was dominated by its ipsilateral SI in long-term observation, and its representative area largely overlapped with the representative area of the intact hand, which possibly reflected a key mechanism of synchronous sensation in patients with TBPI after contralateral C7 transfer.
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Affiliation(s)
- Zeyu Cai
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Gaowei Lei
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Jie Li
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Yundong Shen
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Yudong Gu
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China.,Department of Hand and Upper Extremity Surgery, Jing'an District Central Hospital, Fudan University, Shanghai, China
| | - Juntao Feng
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China.,Department of Hand and Upper Extremity Surgery, Jing'an District Central Hospital, Fudan University, Shanghai, China
| | - Wendong Xu
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China.,Department of Hand and Upper Extremity Surgery, Jing'an District Central Hospital, Fudan University, Shanghai, China.,The National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China
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