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Wang W, Wang X, Tang G, Zhu C, Xiang M, Xiao Q, Zhang ZM, Gao L, Yao SQ. Multitarget inhibitors/probes that target LRRK2 and AURORA A kinases noncovalently and covalently. Chem Commun (Camb) 2023; 59:10789-10792. [PMID: 37594149 DOI: 10.1039/d3cc03530a] [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: 08/19/2023]
Abstract
Herein, we report a salicylaldehyde-based, reversible covalent inhibitor (A2) that possesses moderate cellular activity against AURKA with a prolonged residence time and shows significant non-covalent inhibition towards LRRK2. Our results indicated that this multitarget kinase inhibitor may be used as the starting point for future development of more potent, selective and dual-targeting covalent kinase inhibitors against AURKA and LRRK2 for mitophagy.
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Affiliation(s)
- Wei Wang
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518000, China.
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore.
| | - Xuan Wang
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518000, China.
| | - Guanghui Tang
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore.
| | - Chengjun Zhu
- School of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China.
| | - Menghua Xiang
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518000, China.
| | - Qicai Xiao
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518000, China.
| | - Zhi-Min Zhang
- School of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China.
| | - Liqian Gao
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518000, China.
| | - Shao Q Yao
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore.
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2
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Wang LJ, Chen Y, Xiang M, Yang XF, Chen SN. [Clinical features of 19 patients with SIL-TAL1-positive T-cell acute lymphoblastic leukemia]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:132-136. [PMID: 36948867 PMCID: PMC10033260 DOI: 10.3760/cma.j.issn.0253-2727.2023.02.008] [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] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
Objective: To assess the clinical characteristics and prognosis of patients with SIL-TAL1-positive T-cell acute lymphoblastic leukemia (T-ALL) . Methods: The clinical data of 19 SIL-TAL1-positive T-ALL patients admitted to the First Affiliated Hospital of Soochow University between January 2014 and February 2022 were retrospectively computed and contrasted with SIL-TAL1-negative T-ALL patients. Results: The median age of the 19 SIL-TAL1-positive T-ALL patients was 15 (7 to 41 years) , including 16 males (84.2%) . SIL-TAL1-positive T-ALL patients had younger age, higher WBC, and hemoglobin compared with SIL-TAL1-negative T-ALL patients. There was no discrepancy in gender distribution, PLT, chromosome abnormality distribution, immunophenotyping, and complete remission (CR) rate. The 3-year overall survival (OS) was 60.9% and 74.4%, respectively (HR=2.070, P=0.071) . The 3-year relapse-free survival (RFS) was 49.2% and 70.6%, respectively (HR=2.275, P=0.040) . The 3-year RFS rate of SIL-TAL1-positive T-ALL patients was considerably lower than SIL-TAL1-negative T-ALL patients. Conclusion: SIL-TAL1-positive T-ALL patients were connected to younger age, higher WBC, higher HGB, and poor outcome.
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Affiliation(s)
- L J Wang
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Medical Research Center for Hematological Diseases, Suzhou 215006, China
| | - Y Chen
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Medical Research Center for Hematological Diseases, Suzhou 215006, China
| | - M Xiang
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Medical Research Center for Hematological Diseases, Suzhou 215006, China
| | - X F Yang
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Medical Research Center for Hematological Diseases, Suzhou 215006, China
| | - S N Chen
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Medical Research Center for Hematological Diseases, Suzhou 215006, China
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3
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Chen P, Tang G, Zhu C, Sun J, Wang X, Xiang M, Huang H, Wang W, Li L, Zhang ZM, Gao L, Yao SQ. 2-Ethynylbenzaldehyde-Based, Lysine-Targeting Irreversible Covalent Inhibitors for Protein Kinases and Nonkinases. J Am Chem Soc 2023; 145:3844-3849. [PMID: 36774655 DOI: 10.1021/jacs.2c11595] [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: 02/13/2023]
Abstract
Lysine-targeting irreversible covalent inhibitors have attracted growing interests in recent years, especially in the fields of kinase research. Despite encouraging progress, few chemistries are available to develop inhibitors that are exclusively lysine-targeting, selective, and cell-active. We report herein a 2-ethynylbenzaldehyde (EBA)-based, lysine-targeting strategy to generate potent and selective small-molecule inhibitors of ABL kinase by selectively targeting the conserved catalytic lysine in the enzyme. We showed the resulting compounds were cell-active, capable of covalently engaging endogenous ABL kinase in K562 cells with long-residence time and few off-targets. We further validated the generality of this strategy by developing EBA-based irreversible inhibitors against EGFR (a kinase) and Mcl-1 (a nonkinase) that covalently reacted with the catalytic and noncatalytic lysine within each target.
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Affiliation(s)
- Peng Chen
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Guanghui Tang
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Chengjun Zhu
- School of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Jie Sun
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Xuan Wang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Menghua Xiang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Huisi Huang
- School of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Wei Wang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Lin Li
- The Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361005, China
| | - Zhi-Min Zhang
- School of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Liqian Gao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Shao Q Yao
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
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4
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Lou L, Zhou S, Tan S, Xiang M, Wang W, Yuan C, Gao L, Xiao Q. Amplifying the efficacy of ALA-based prodrugs for photodynamic therapy using nanotechnology. Front Pharmacol 2023; 14:1137707. [PMID: 36923350 PMCID: PMC10008889 DOI: 10.3389/fphar.2023.1137707] [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: 01/04/2023] [Accepted: 02/16/2023] [Indexed: 03/01/2023] Open
Abstract
5-aminolevulinic acid (ALA) is a clinically approved prodrug involved in intracellular Heme biosynthesis to produce the natural photosensitizer (PS) Protoporphyrin IX (PpIX). ALA based photodynamic therapy (PDT) has been used to treat various malignant and non-malignant diseases. However, natural ALA has disadvantages such as weak lipophilicity, low stability and poor bioavailability, greatly reducing its clinical performance. The emerging nanotechnology is expected to address these limitations and thus improve the therapeutic outcomes. Herein, we summarized important recent advances in the design of ALA-based prodrugs using nanotechnology to improve the efficacy of PDT. The potential limitations and future perspectives of ALA-based nanomedicines are also briefly presented and discussed.
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Affiliation(s)
- Liang Lou
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University and Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Shizhe Zhou
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University and Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Sijia Tan
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University and Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Menghua Xiang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University and Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Wei Wang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University and Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Chuang Yuan
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China.,Department of Hematology, Xiangya Hospital, Central South University, Changsha, China
| | - Liqian Gao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University and Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Qicai Xiao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University and Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
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5
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Smith C, Abtin F, Xiang M, Yoon S, Ruan D, Goldman J, Cummings A, Lisberg A, Garon E, Barjaktarevic I, Moghanaki D. Incidence of Radiation Pneumonitis Among Patients Treated with Concurrent Thoracic Radiotherapy and Osimertinib for Metastatic Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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6
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Xiao Q, Mai B, Nie Y, Yuan C, Xiang M, Shi Z, Wu J, Leung W, Xu C, Yao SQ, Wang P, Gao L. Correction to "In Vitro and In Vivo Demonstration of Ultraefficient and Broad-Spectrum Antibacterial Agents for Photodynamic Antibacterial Chemotherapy". ACS Appl Mater Interfaces 2022; 14:45076. [PMID: 36129814 DOI: 10.1021/acsami.2c15870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
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7
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Suwei D, Zhen L, Zhimin L, Mei L, Jianping K, Zhuohui P, Yanbin X, Xiang M. Hypoxia Modulates Melanoma Cells Proliferation and Apoptosis via miRNA-210/ISCU/ROS Signaling. Bull Exp Biol Med 2022; 173:645-650. [DOI: 10.1007/s10517-022-05605-0] [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] [Received: 08/23/2021] [Indexed: 11/06/2022]
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8
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Chen P, Sun J, Zhu C, Tang G, Wang W, Xu M, Xiang M, Zhang CJ, Zhang ZM, Gao L, Yao SQ. Cell-Active, Reversible, and Irreversible Covalent Inhibitors That Selectively Target the Catalytic Lysine of BCR-ABL Kinase. Angew Chem Int Ed Engl 2022; 61:e202203878. [PMID: 35438229 DOI: 10.1002/anie.202203878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Indexed: 12/16/2022]
Abstract
Despite recent interests in developing lysine-targeting covalent inhibitors, no general approach is available to create such compounds. We report herein a general approach to develop cell-active covalent inhibitors of protein kinases by targeting the conserved catalytic lysine residue using key SuFEx and salicylaldehyde-based imine chemistries. We validated the strategy by successfully developing (irreversible and reversible) covalent inhibitors against BCR-ABL kinase. Our lead compounds showed high levels of selectivity in biochemical assays, exhibited nanomolar potency against endogenous ABL kinase in cellular assays, and were active against most drug-resistant ABL mutations. Among them, the salicylaldehyde-containing A5 is the first-ever reversible covalent ABL inhibitor that possessed time-dependent ABL inhibition with prolonged residence time and few cellular off-targets in K562 cells. Bioinformatics further suggested the generality of our strategy against the human kinome.
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Affiliation(s)
- Peng Chen
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, 518107, China
| | - Jie Sun
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, 518107, China
| | - Chengjun Zhu
- School of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou, 510632, China.,Guangdong Youmei Institute of Intelligent Bio-manufacturing Foshan, Guangdong, 528200, China
| | - Guanghui Tang
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Wei Wang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, 518107, China
| | - Manyi Xu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines and Beijing Key Laboratory of Active Substances Discovery and, Drugability Evaluation, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China
| | - Menghua Xiang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, 518107, China
| | - Chong-Jing Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines and Beijing Key Laboratory of Active Substances Discovery and, Drugability Evaluation, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China
| | - Zhi-Min Zhang
- School of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou, 510632, China.,Guangdong Youmei Institute of Intelligent Bio-manufacturing Foshan, Guangdong, 528200, China
| | - Liqian Gao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, 518107, China
| | - Shao Q Yao
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
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9
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Chen P, Sun J, Zhu C, Tang G, Wang W, Xu M, Xiang M, Zhang C, Zhang Z, Gao L, Yao SQ. Cell‐Active, Reversible, and Irreversible Covalent Inhibitors That Selectively Target the Catalytic Lysine of BCR‐ABL Kinase. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Peng Chen
- School of Pharmaceutical Sciences (Shenzhen) Sun Yat-sen University Shenzhen 518107 China
| | - Jie Sun
- School of Pharmaceutical Sciences (Shenzhen) Sun Yat-sen University Shenzhen 518107 China
| | - Chengjun Zhu
- School of Pharmacy Jinan University 601 Huangpu Avenue West Guangzhou 510632 China
- Guangdong Youmei Institute of Intelligent Bio-manufacturing Foshan Guangdong 528200 China
| | - Guanghui Tang
- Department of Chemistry National University of Singapore Singapore 117543 Singapore
| | - Wei Wang
- School of Pharmaceutical Sciences (Shenzhen) Sun Yat-sen University Shenzhen 518107 China
| | - Manyi Xu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines and Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences Beijing 100050 China
| | - Menghua Xiang
- School of Pharmaceutical Sciences (Shenzhen) Sun Yat-sen University Shenzhen 518107 China
| | - Chong‐Jing Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines and Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences Beijing 100050 China
| | - Zhi‐Min Zhang
- School of Pharmacy Jinan University 601 Huangpu Avenue West Guangzhou 510632 China
- Guangdong Youmei Institute of Intelligent Bio-manufacturing Foshan Guangdong 528200 China
| | - Liqian Gao
- School of Pharmaceutical Sciences (Shenzhen) Sun Yat-sen University Shenzhen 518107 China
| | - Shao Q. Yao
- Department of Chemistry National University of Singapore Singapore 117543 Singapore
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10
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Ma T, Xiang M, Tilki D, Karnes R, Stish B, Martinez-Monge R, Tendulkar R, Klein E, Tran P, Tosoian J, Berlin A, Tward J, Merrick G, Spratt D, Krauss D, Horwitz E, Gafita A, Grogan T, Calais J, Kishan A. Prognostic Significance of the Risk of Non-localized Disease on PSMA/PET: Comparative Performance of a Novel, PSMA/PET-Derived Risk Stratification Tool for High-Risk Prostate Cancer in a Large, Multi-Institutional Cohort. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Xiao Q, Dong X, Yang F, Zhou S, Xiang M, Lou L, Yao SQ, Gao L. Engineered Cell-Penetrating Peptides for Mitochondrion-Targeted Drug Delivery in Cancer Therapy. Chemistry 2021; 27:14721-14729. [PMID: 34436802 DOI: 10.1002/chem.202102523] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Indexed: 01/23/2023]
Abstract
Mitochondrion is a promising target in cancer therapy. However, gaining access to this organelle is difficult due to the obstacles to cross the complicated mitochondrial membrane. Cell-penetrating peptides (CPPs) with mitochondrion-targeting ability, named mitochondrion-targeting peptides (MTPs), are efficient tools to deliver exogenous therapeutics into mitochondria. Herein, we report several new MTPs, which can be readily synthesized via resin-based solid-phase peptide synthesis. In particular, MTP3 (compound 5), consisting of three positively charged arginines and two D- and L- alternating naphthylalanines, demonstrated excellent mitochondrion-targeting ability with high Pearson's correlation coefficient, suggesting that MTP3 has good potential for mitochondrion-targeted drug delivery. As proof-of-concept, the feasibility of MTP3 was validated by the preparation of a mitochondrion-targeting prodrug (compound 17, doxorubicin-based prodrug). This prodrug was subsequently confirmed to be specifically transported to the mitochondria of tumor cells, where it was able to release the native doxorubicin upon intracellular GSH activation, leading to mitochondrial depolarization and eventually cell death. Importantly, compound 17 showed good cytotoxicity against human tumor cells while negligible toxicity towards normal cells, indicating its potential as a potent mitochondrial medicine for targeted cancer therapy. Our study thus opens a way for engineered CPPs to be used to deliver bioactive cargos in mitochondrion-targeted cancer therapy.
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Affiliation(s)
- Qicai Xiao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Shenzhen, 518107, China.,Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Xiao Dong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Fen Yang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Shenzhen, 518107, China
| | - Shizhe Zhou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Shenzhen, 518107, China
| | - Menghua Xiang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Shenzhen, 518107, China
| | - Liang Lou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Shenzhen, 518107, China
| | - Shao Q Yao
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Liqian Gao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Shenzhen, 518107, China
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12
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Shi WJ, Feng LX, Wang X, Huang Y, Wei YF, Huang YY, Ma HJ, Wang W, Xiang M, Gao L. A near-infrared-emission aza-BODIPY-based fluorescent probe for fast, selective, and "turn-on" detection of HClO/ClO . Talanta 2021; 233:122581. [PMID: 34215073 DOI: 10.1016/j.talanta.2021.122581] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 12/20/2022]
Abstract
A novel near-infrared-emitting aza-BODIPY-based fluorescent probe with two tellurium atoms at two upper benzyl rings has been prepared and explored for its fluorescent sensing properties towards hypochlorous acid/hypochorite (HClO/ClO-), which showed high selectivity and absolutely fluorescent "turn-on" phenomenon at 738 nm. The fluorescence of this probe was sufficiently quenched due to photoindued electron transfer by two tellurium atoms. Upon exposure to HClO/ClO-, a strong near-infrared emission at 738 nm appeared with fluorescence quantum yields changing from 0 to 0.11. This remarkable fluorescence change was ascribed to the oxidation of both electron-rich tellurium atoms. The detection limit of this probe towards HClO/ClO- was calculated to 0.09 μM in acetonitrile aqueous solution by the linear fluorescence change at 738 nm in the HClO/ClO--concentration range of 0-30 μM. Interestingly, this probe was found to be applicable in a broad pH range (2-10). Meanwhile, the oxidized probe could be further responsive to biothiols with substantial fluorescence disappearance. The bioimaging experiments in RAW264.7 cells showed the appearance of intracellular near-infrared fluorescence after addition of HClO/ClO- and PMA, and the fluorescence could also be reversed to be silenced by further introduction of GSH, confirming its potential application for exogenous and endogenous detection of HClO/ClO- in living cells.
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Affiliation(s)
- Wen-Jing Shi
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, PR China; The Joint Research Center of Guangzhou University and Keele University for Gene Interference and Application, School of Life Science, Guangzhou University, Guangzhou, 510006, China.
| | - Liu-Xia Feng
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, PR China
| | - Xuan Wang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, 518107, PR China
| | - Yan Huang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, PR China
| | - Yong-Feng Wei
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, PR China
| | - Yan-Yu Huang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, PR China
| | - Huai-Jin Ma
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, PR China
| | - Wei Wang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, 518107, PR China
| | - Menghua Xiang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, 518107, PR China
| | - Liqian Gao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, 518107, PR China.
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13
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Xiao Q, Mai B, Nie Y, Yuan C, Xiang M, Shi Z, Wu J, Leung W, Xu C, Yao SQ, Wang P, Gao L. In Vitro and In Vivo Demonstration of Ultraefficient and Broad-Spectrum Antibacterial Agents for Photodynamic Antibacterial Chemotherapy. ACS Appl Mater Interfaces 2021; 13:11588-11596. [PMID: 33656316 DOI: 10.1021/acsami.0c20837] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 06/12/2023]
Abstract
Increasing threats from both pathogenic infections and antibiotic resistance highlight the pressing demand for nonantibiotic agents and alternative therapies. Herein, we report several new phenothiazinium-based derivatives, which could be readily synthesized via fragment-based assembly, which exhibited remarkable bactericidal activities both in vitro and in vivo. Importantly, in contrast to numerous clinically and preclinically used antibacterial photosensitizers, these compounds were able to eliminate various types of microorganisms, including Gram-(+) Staphylococcus aureus (S. aureus), Gram-(-) Escherichia coli, multidrug-resistant S. aureus, and their associated biofilms, at low drug and light dosages (e.g., 0.21 ng/mL in vitro and 1.63 ng/cm2 in vivo to eradicate S. aureus at 30 J/cm2). This study thus unveils the potential of these novel phenothiaziniums as potent antimicrobial agents for highly efficient photodynamic antibacterial chemotherapy.
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Affiliation(s)
- Qicai Xiao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen 518107, P. R. China
- School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Bingjie Mai
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Yichu Nie
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen 518107, P. R. China
| | - Chuang Yuan
- Department of Hematology, Xiangya Hospital, Central South University, Changsha 410000, P. R. China
- Department of Critical Care Medicine, The Second People's Hospital of Shenzhen & First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen 518035, P. R. China
| | - Menghua Xiang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen 518107, P. R. China
| | - Zihan Shi
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen 518107, P. R. China
| | - Juan Wu
- School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Wingnang Leung
- School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Chuanshan Xu
- The Fifth Affiliated Hospital, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, P. R. China
- School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Shao Q Yao
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Pan Wang
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Liqian Gao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen 518107, P. R. China
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Xiang M, Zhou Q, Shi Z, Wang X, Li M, Jia Y, Li S, Yang F, Wang W, Chen T, Xu X, Sharma B, Nie Y, Xiao Q, Gao L. A Review of Light Sources and Enhanced Targeting for Photodynamic Therapy. Curr Med Chem 2021; 28:6437-6457. [PMID: 33475053 DOI: 10.2174/0929867328666210121122106] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 11/22/2022]
Abstract
Photodynamic Therapy (PDT), as a clinically approved modality for the treatment
of various disordered diseases including cancer, has received great advances in recent
years. By preferentially accumulating non-toxic Photosensitizers (PSs) in the pathological
area, and in situ generation of cytotoxic reactive oxygen species (ROS) under local
irradiation by a light source with appropriate wavelength, PDT works in a dual-selective
manner. Over the past decades, numerous studies and reviews on PDT mainly focused
on activable PSs and the newly emerging PSs in PDT. However, to the best of our
knowledge, there are few articles on the systematic introduction of light sources and limited
reports about targeted strategies in PDT. This review comprehensively summarizes
various light sources applied in PDT together with typical enhanced targeting strategies,
and outlines their advantages and disadvantages, respectively. The clinical applications
and future perspectives in light sources are also partly presented and discussed.
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Affiliation(s)
- Menghua Xiang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107. China
| | - Quanming Zhou
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107. China
| | - Zihan Shi
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107. China
| | - Xuan Wang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107. China
| | - Mengchu Li
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107. China
| | - Yan Jia
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107. China
| | - Shaoyun Li
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107. China
| | - Fen Yang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107. China
| | - Wei Wang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107. China
| | - Tongkai Chen
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, P.R. China
| | - Xiaojun Xu
- Institute of Chemical Biology, Shenzhen Bay Laboratory, Shenzhen518107, P.R. China
| | - Bigyan Sharma
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107. China
| | - Yichu Nie
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107. China
| | - Qicai Xiao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107. China.,Department of Chemistry, National University of Singapore, 117543, Singapore
| | - Liqian Gao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107. China
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Xiang M, Holsinger F, Gensheimer M, Divi V, Pollom E, Colevas A, Le Q, Beadle B. Survival Benefit of Postoperative Radiotherapy in Pathological N1 Oral Cavity Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.346] [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]
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16
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Zou CS, Ding P, Geng ML, Wu XY, Li SY, Tao SM, Wang L, Chen J, Peng L, Wang SM, Yin GZ, Zhang AH, Deng H, Tang YX, Ma YQ, Huang HP, Xiang M, Tao FB. [Effects of parental rearing patterns and their consistency on the emotional and behavioral problems of preschool children]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:283-288. [PMID: 32187933 DOI: 10.3760/cma.j.issn.0253-9624.2020.03.008] [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: 06/10/2023]
Abstract
Objective: To explore the effect of parental rearing patterns and their consistency on the emotional and behavioral problems of preschool children. Methods: From October to November 2017, 27 987 children aged 3 to 6 years old from 109 kindergartens in 11 cities of Hubei, Anhui and Jiangsu Provinces were selected by using the cluster sampling method. A total of 27 200 valid questionnaires which were completed by subjects' parents were collected. The emotional and behavioral problems of preschool children were collected by "strengths and difficulties questionnaire" and the parental rearing patterns were evaluated by the "Parental Behavior Scale". The differences in emotional and behavioral abnormality rates of preschool children with different characteristics were analyzed; with emotional and behavioral problems as dependent variables and parental support/participation and compulsion/hostility as independent variables, the multivariate logistic regression model was used to analyze the effect of parental rearing patterns and their consistency on the emotional and behavioral problems of preschool children. Results: The age of children was (4.35±0.96) years old, and 51.4% of children were 13 975 males. There were 24 634 (90.6%) urban children and 17 916 (65.9%) only children. Both parents with strong support/participation accounted for 14.9%, and those with poor support/participation accounted for 11.9%; both parents with strong compulsion/hostility accounted for 15.2%, and those with low compulsion/hostility accounted for 11.3%. The rates of emotional symptoms, conduct behavior, hyperactive behavior, peer interaction, total difficulty score, and abnormal prosocial behavior of preschool children were 9.5%, 9.5%, 18.2%, 24.5%, 11.2%, and 10.2%, respectively. The multivariate logistic regression model analysis showed that after adjusting for gender, only child, living area, family economic status, mother's age and education level, father's education level, and other factors, compared with fathers/mothers with strong support/participation and low compulsion/hostility and parents with strong support/participation and low compulsion/hostility, preschool children who had fathers/mothers with poor support/participation and strong compulsion/hostility or parents with poor support/participation and strong compulsion/hostility were more likely to have emotional symptoms, conduct behavior, hyperactive behavior, peer interaction, total difficulty score, and abnormal prosocial behavior (P<0.05). Conclusions: Parental rearing patterns and their consistency are related to the emotional and behavioral problems of preschool children.
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Affiliation(s)
- C S Zou
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Anhui Provincial Key Laboratory of Population Health and Eugenics, Hefei 230032, China
| | - P Ding
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Anhui Provincial Key Laboratory of Population Health and Eugenics, Hefei 230032, China
| | - M L Geng
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Anhui Provincial Key Laboratory of Population Health and Eugenics, Hefei 230032, China
| | - X Y Wu
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Anhui Provincial Key Laboratory of Population Health and Eugenics, Hefei 230032, China
| | - S Y Li
- Department of Preventive Medicine, Wuhan University School of Health, Wuhan 430000, China
| | - S M Tao
- Department of Maternal, Child & Adolescent Health, School of Public Health, Shanghai Jiao Tong University, Shanghai 200000, China
| | - L Wang
- Child Healthcare Department, Yangzhou Maternal and Child Care Service Centre, Yangzhou 225000, Jiangsu Province, China
| | - J Chen
- Child Healthcare Department, Zhenjiang Maternal and Child Care Service Centre, Zhenjiang 212000, Jiangsu Province, China
| | - L Peng
- Child Healthcare Department, Xuzhou Maternity and Child Care Hospital, Xuzhou 221000, Jiangsu Province, China
| | - S M Wang
- Child Healthcare Department, Maanshan Maternity and Child Care Hospital, Maanshan 243000, Anhui Province, China
| | - G Z Yin
- Child Healthcare Department, Hefei Maternal and Child Care Service Centre, Hefei 230032, China
| | - A H Zhang
- Child Healthcare Department, Wuhu Maternal and Child Care Service Centre, Wuhu 241000, Anhui Province, China
| | - H Deng
- Child Healthcare Department, Anqing Maternal and Child Care Service Centre, Anqing 246000, Anhui Province, China
| | - Y X Tang
- Child Healthcare Department, Tongling Maternal and Child Care Service Centre, Tongling 244000, Anhui Province, China
| | - Y Q Ma
- Child Healthcare Department, Wuhan Maternal and Child Care Service Centre, Wuhan 430000, China
| | - H P Huang
- Child Healthcare Department, Ezhou Maternal and Child Care Service Centre, Ezhou 436000, Hubei province, China
| | - M Xiang
- Child Healthcare Department, Songzi Maternal and Child Care Service Centre, Songzi 434200, Hubei Province, China
| | - F B Tao
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Anhui Provincial Key Laboratory of Population Health and Eugenics, Hefei 230032, China
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Gong S, Xu M, Xiang M, Shan Y, Zhang H. The clinical significance and biological mechanisms of miR-499a in high-tobacco exposed head and neck squamous cell carcinoma. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz252.048] [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: 11/12/2022] Open
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Xiang M, Chang D, Heestand G, Pollom E. Defining the Optimal Neoadjuvant Treatment Strategy in Patients with Resectable Pancreas Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1939] [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]
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Xiang M, English D, Kidd E. Cause-specific mortality according to adjuvant therapy of serous and clear cell endometrial cancers: A population-based analysis. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Xiang M, Holsinger F, Chen M, Colevas A, Beadle B. Comparative Effectiveness of Cetuximab or Cisplatin With Concomitant Radiation for Locoregionally Advanced Squamous Cell Carcinoma of the Head and Neck: A Population-Based Analysis. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2017.12.044] [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: 11/25/2022]
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21
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Xiang M, Gensheimer M, Maxim P, Wakelee H, Neal J, Diehn M, Loo B. Outcomes of Moderately Hypofractionated Intensity-Modulated Thoracic Radiotherapy with Concurrent Chemotherapy for Treatment of Non–Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1806] [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: 11/26/2022]
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Kumar K, Prionas N, Balazy K, Kozak M, Xiang M, Moding E, Chang D. A Pilot Curriculum for Transitioning Radiation Oncology Residents. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.896] [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: 10/18/2022]
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Zhu ZL, Yang QM, Li C, Chen J, Xiang M, Chen MM, Yan M, Zhu ZG. Association between the resistin gene-420 C>G polymorphism and obesity: an updated meta-analysis. Eur Rev Med Pharmacol Sci 2016; 20:4922-4929. [PMID: 27981541] [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: 06/06/2023]
Abstract
OBJECTIVE The aim of this study was to assess the relationship of the resistin gene (RETN)-420 C>G polymorphism and obesity susceptibility by conducting an updated meta-analysis. MATERIALS AND METHODS The electronic databases including PubMed, Medline, Embase, China National Knowledge Infrastructure, Chinese Wanfang Database, and Chinese VIP database were searched for relevant studies published before December 2013. The fixed effect model or random effects model was used based on the heterogeneity test results. The sensitivity analysis was performed in the allelic model and the dominant genetic model, respectively. Publication bias was assessed via funnel plot. The meta-analysis was performed using the software of RevMan 5.2. RESULTS Data were obtained from 10 included studies, involving 5,069 cases and 6,673 controls. The overall odds ratios (ORs) with its 95% confidence interval (CI) showed no association between RETN-420 C>G polymorphism and obesity in the allelic model (p = 0.09; OR = 1.10; 95% CI = 0.991.24), the dominant model (p = 0.09; OR = 1.16; 95% CI = 0.98-1.36), and the recessive model (p = 0.71; OR = 1.02; 95% CI = 0.90-1.16). Sensitivity analysis showed statistical differences of association analysis within the allelic model (p = 0.04; OR = 1.14; 95% CI = 1.01-1.28) and the dominant genetic model (p = 0.04; OR = 1.21; 95% CI = 1.01-1.45), when 1 study was omitted. No publication bias was observed. CONCLUSIONS The RETN-420 C>G polymorphism may be related to obesity with G allele as a risk factor.
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Affiliation(s)
- Z-L Zhu
- Department of General Surgery and the Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
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Liu L, Wu W, Ma Y, Liu Y, Wang Y, Oghagbon EK, Xiang M, Huang D. Laryngotracheal resection and reconstruction for subglottic tracheal stenosis--our experience of 32 cases. Clin Otolaryngol 2016; 40:143-7. [PMID: 25346319 DOI: 10.1111/coa.12347] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2014] [Indexed: 11/28/2022]
Affiliation(s)
- L Liu
- Department of Otolaryngology Head Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China; Department of Otolaryngology Head Neck Surgery, Chinese PLA General Hospital, Beijing, China
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Chen H, Hu X, Yang G, Xiang M. Clinic research on the treatment for humeral shaft fracture with minimal invasive plate osteosynthesis: a retrospective study of 128 cases. Eur J Trauma Emerg Surg 2015; 43:215-219. [PMID: 26666255 DOI: 10.1007/s00068-015-0616-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 06/25/2015] [Accepted: 11/30/2015] [Indexed: 12/01/2022]
Abstract
INTRODUCTION Minimal invasive plate osteosynthesis (MIPO) is one of the most important techniques in the treatment for humeral shaft fractures. This study was performed to evaluate the efficacy of MIPO technique for the treatment for humeral shaft fractures. MATERIALS AND METHODS We retrospectively evaluated 128 cases with humeral shaft fractures that were treated with MIPO technique from March 2005 to August 2008. All the patients were followed up by routine radiological imaging and clinical examinations. Constant-Murley score and HSS elbow joint score were used to evaluate the treatment outcome. RESULTS The average duration of the surgery was 60 min (range 40-95 min) without blood transfusion. All fractures healed without infection. All cases recovered carrying angle except four cases with 10°-15° cubitus varus. After the average follow-up of 23 (13-38) months, satisfactory function was achieved according to Constant-Murley score and HSS elbow joint score. Constant-Murley score was 80 on average (range 68-91). According to HSS elbow joint score, there were 123 cases of excellent clinical outcome and five cases of effective outcome. CONCLUSION It seems to be a safe and effective method for managing humeral shaft fractures with MIPO technique.
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Affiliation(s)
- H Chen
- Sichuan Orthopaedic Hospital, No. 132 Yihuan Road, Chengdu, 610041, Sichuan, China
| | - X Hu
- Sichuan Orthopaedic Hospital, No. 132 Yihuan Road, Chengdu, 610041, Sichuan, China
| | - G Yang
- Sichuan Orthopaedic Hospital, No. 132 Yihuan Road, Chengdu, 610041, Sichuan, China
| | - M Xiang
- Sichuan Orthopaedic Hospital, No. 132 Yihuan Road, Chengdu, 610041, Sichuan, China.
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Francius C, Hidalgo‐Figueroa M, Ronellenfitch K, Panayiotou Worth E, Misra K, Parras C, Xiang M, Malas S, Chow R, Clotman F. ISDN2014_0068: Identification of a novel population of V2 interneurons in the developing mouse spinal cord. Int J Dev Neurosci 2015. [DOI: 10.1016/j.ijdevneu.2015.04.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
- C. Francius
- Université catholique de LouvainInstitute of NeuroscienceLaboratory of Neural DifferentiationBrusselsBelgium
| | | | | | - E. Panayiotou Worth
- University of NicosiaThe Cyprus Institute of Neurology and GeneticsNicosiaCyprus
| | - K. Misra
- UMDNJCenter for Advanced Biotechnology and MedicinePiscatawayUSA
| | - C. Parras
- CRICMInsermUMR‐S975/CNRSUMR7225ParisFrance
| | - M. Xiang
- UMDNJCenter for Advanced Biotechnology and MedicinePiscatawayUSA
| | - S. Malas
- University of NicosiaThe Cyprus Institute of Neurology and GeneticsNicosiaCyprus
| | - R.L. Chow
- Université catholique de LouvainInstitute of NeuroscienceLaboratory of Neural DifferentiationBrusselsBelgium
| | - F. Clotman
- Université catholique de LouvainInstitute of NeuroscienceLaboratory of Neural DifferentiationBrusselsBelgium
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Ma Y, Liu L, Wang W, Lu C, Zhang A, Song Y, Zhang R, Oghagbon EK, Xiang M. Reconstruction of hypopharyngeal non-circumferential defects with a submental island flap after hypopharyngeal carcinoma ablation, our experience of 13 cases. Clin Otolaryngol 2015; 41:402-6. [PMID: 26294419 DOI: 10.1111/coa.12522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/10/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Y Ma
- Department of Otolaryngology Head Neck Surgery, Beijing Friendship Hospital, Capital Medical University, 95th Yong'an Road, Xicheng District, Beijing, China
| | - L Liu
- Department of Otolaryngology Head Neck Surgery, Beijing Friendship Hospital, Capital Medical University, 95th Yong'an Road, Xicheng District, Beijing, China
| | - W Wang
- Department of Otolaryngology Head Neck Surgery, Beijing Friendship Hospital, Capital Medical University, 95th Yong'an Road, Xicheng District, Beijing, China
| | - C Lu
- Department of Otolaryngology Head Neck Surgery, Beijing Friendship Hospital, Capital Medical University, 95th Yong'an Road, Xicheng District, Beijing, China
| | - A Zhang
- Department of Otolaryngology Head Neck Surgery, Beijing Friendship Hospital, Capital Medical University, 95th Yong'an Road, Xicheng District, Beijing, China
| | - Y Song
- Department of Otolaryngology Head Neck Surgery, Beijing Friendship Hospital, Capital Medical University, 95th Yong'an Road, Xicheng District, Beijing, China
| | - R Zhang
- Department of Otolaryngology Head Neck Surgery, Beijing Friendship Hospital, Capital Medical University, 95th Yong'an Road, Xicheng District, Beijing, China
| | - E K Oghagbon
- Department of Chemical Pathology, Faculty of Basic & Allied Medical Sciences, College of Heath Sciences, Benue State University, Makurdi, Nigeria
| | - M Xiang
- School of Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK
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Peng X, Gao QS, Zhou L, Chen ZH, Lu S, Huang HJ, Zhan CY, Xiang M. MicroRNAs in avian influenza virus H9N2-infected and non-infected chicken embryo fibroblasts. Genet Mol Res 2015; 14:9081-91. [PMID: 26345840 DOI: 10.4238/2015.august.7.17] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
There is limited information about microRNAs (miR-NAs) in H9N2 subtype influenza virus-infected chicken cells or tissues. In this study, 10,487,469 and 13,119,795 reads were obtained from in-fected and non-infected chicken embryo fibroblasts, respectively. Seven hundred and thirty-six and 1004 miRNAs, including mature miRNAs and precursors, were obtained from the infected and non-infected fibro-blasts, respectively. Of those miRNAs, 48 were expressed differently between the groups: 37 had a low expression level in the infected chick-en embryo fibroblast, and the remaining 11 had a higher expression level. Every miRNA was predicted to target immune response-related genes. It has been found that some of the miRNAs, such as gga-miR-146c, gga-miR-181a, gga-miR-181b, gga-miR-30b, gga-miR-30c, gga-miR-30e, and gga-miR-455, are expressed differently in other types of influenza-infected chicken cells or tissues.
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Affiliation(s)
- X Peng
- Animal Biotechnology Laboratory, Wuhan Institute of Animal and Veterinary Science, Wuhan Academy of Agricultural Science & Technology, Wuhan, China
| | - Q S Gao
- Animal Biotechnology Laboratory, Wuhan Institute of Animal and Veterinary Science, Wuhan Academy of Agricultural Science & Technology, Wuhan, China
| | - L Zhou
- Animal Biotechnology Laboratory, Wuhan Institute of Animal and Veterinary Science, Wuhan Academy of Agricultural Science & Technology, Wuhan, China
| | - Z H Chen
- Animal Biotechnology Laboratory, Wuhan Institute of Animal and Veterinary Science, Wuhan Academy of Agricultural Science & Technology, Wuhan, China
| | - S Lu
- Animal Biotechnology Laboratory, Wuhan Institute of Animal and Veterinary Science, Wuhan Academy of Agricultural Science & Technology, Wuhan, China
| | - H J Huang
- Animal Biotechnology Laboratory, Wuhan Institute of Animal and Veterinary Science, Wuhan Academy of Agricultural Science & Technology, Wuhan, China
| | - C Y Zhan
- Animal Biotechnology Laboratory, Wuhan Institute of Animal and Veterinary Science, Wuhan Academy of Agricultural Science & Technology, Wuhan, China
| | - M Xiang
- Animal Biotechnology Laboratory, Wuhan Institute of Animal and Veterinary Science, Wuhan Academy of Agricultural Science & Technology, Wuhan, China
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Wang M, Jiang X, Wu W, Hao Y, Su Y, Cai L, Xiang M, Liu X. Psychrophilic fungi from the world's roof. Persoonia 2015; 34:100-12. [PMID: 26240448 PMCID: PMC4510274 DOI: 10.3767/003158515x685878] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Accepted: 03/05/2014] [Indexed: 12/05/2022]
Abstract
During a survey of cold-adapted fungi in alpine glaciers on the Qinghai-Tibet Plateau, 1 428 fungal isolates were obtained of which 150 species were preliminary identified. Phoma sclerotioides and Pseudogymnoascus pannorum were the most dominant species. Psychrotolerant species in Helotiales (Leotiomycetes, Ascomycota) were studied in more detail as they represented the most commonly encountered group during this investigation. Two phylogenetic trees were constructed based on the partial large subunit nrDNA (LSU) to infer the taxonomic placements of these strains. Our strains nested in two well-supported major clades, which represented Tetracladium and a previously unknown lineage. The unknown lineage is distant to any other currently known genera in Helotiales. Psychrophila gen. nov. was therefore established to accommodate these strains which are characterised by globose or subglobose conidia formed from phialides on short or reduced conidiophores. Our analysis also showed that an LSU-based phylogeny is insufficient in differentiating strains at species level. Additional analyses using combined sequences of ITS+TEF1+TUB regions were employed to further investigate the phylogenetic relationships of these strains. Together with the recognisable morphological distinctions, six new species (i.e. P. antarctica, P. lutea, P. olivacea, T. ellipsoideum, T. globosum and T. psychrophilum) were described. Our preliminary investigation indicates a high diversity of cold-adapted species in nature, and many of them may represent unknown species.
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Affiliation(s)
- M. Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 3 1st Beichen West Road, Chaoyang District, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - X. Jiang
- Novozymes (China) Investment Co. Ltd., China Headquarters, 14 Xinxi Road, Shangdi Zone, Haidian District, 100085 Beijing, China
| | - W. Wu
- Novozymes (China) Investment Co. Ltd., China Headquarters, 14 Xinxi Road, Shangdi Zone, Haidian District, 100085 Beijing, China
| | - Y. Hao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 3 1st Beichen West Road, Chaoyang District, Beijing 100101, China
| | - Y. Su
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 3 1st Beichen West Road, Chaoyang District, Beijing 100101, China
| | - L. Cai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 3 1st Beichen West Road, Chaoyang District, Beijing 100101, China
| | - M. Xiang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 3 1st Beichen West Road, Chaoyang District, Beijing 100101, China
| | - X. Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 3 1st Beichen West Road, Chaoyang District, Beijing 100101, China
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Zhang JY, Kang J, Chen JY, Cao Y, Xiang M. Crystallization behavior, tensile behavior and hydrophilicity of poly(vinylidene fluoride)/poly(vinyl pyrrolidone) blends. Polym Sci Ser A 2014. [DOI: 10.1134/s0965545x14060212] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ma Y, Huang D, Liu L, Xiang M, Oghagbon E, Zhai S. Surgical treatment of carotid body tumour: a report of 39 cases and a new classification of carotid body tumour: Our Experience. Clin Otolaryngol 2014; 39:254-7. [PMID: 24920404 DOI: 10.1111/coa.12267] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/03/2014] [Indexed: 11/30/2022]
Affiliation(s)
- Y. Ma
- Department of Otolaryngology, Head and Neck Surgery; Chinese PLA General Hospital; Beijing China
- Department of Otolaryngology, Head and Neck Surgery; Beijing Friendship Hospital; Capital Medical University; Xicheng District Beijing China
| | - D. Huang
- Department of Otolaryngology, Head and Neck Surgery; Chinese PLA General Hospital; Beijing China
| | - L. Liu
- Department of Otolaryngology, Head and Neck Surgery; Beijing Friendship Hospital; Capital Medical University; Xicheng District Beijing China
| | - M. Xiang
- School of Science; University of Greenwich; Chatham Maritime Kent UK
| | - E.K. Oghagbon
- Department of Chemical Pathology; Faculty of Basic & Allied Medical Sciences; College of Heath Sciences; Benue State University; Makurdi Nigeria
| | - S. Zhai
- Department of Otolaryngology, Head and Neck Surgery; Chinese PLA General Hospital; Beijing China
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Yan C, Zhu ZG, Yan M, Zhang H, Pan ZL, Chen J, Xiang M, Chen MM, Liu BY, Lin YZ. Clinicopathological characteristics and computed tomography features of mucinous gastric carcinoma. J Int Med Res 2011; 39:291-301. [PMID: 21672333 DOI: 10.1177/147323001103900132] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
This study investigated the clinicopathological characteristics of mucinous gastric carcinoma (MGC) and assessed whether multidetector-row computed tomography (MDCT) could differentiate MGC from non-mucinous gastric carcinoma (NGC). Clinicopathological data from 542 patients with gastric carcinoma (23 MGC, 519 NGC), who underwent pre-operative MDCT examination and curative or palliative gastrectomy, were analysed. Only seven of the 23 patients with MGC were correctly diagnosed pre-operatively by endoscopic biopsy. The MGC patients had larger tumours, a higher frequency of lymph node metastases, were more likely to have tumours of tumour, node, metastasis stages III and IV, and were less likely to have a curative resection than NGC patients. In addition, five MGC patients had calcifications in the thickened gastric wall. In conclusion, MGC is rare and is detected mostly at an advanced stage. The diagnostic sensitivity of MGC by endoscopic biopsy was relatively low, whereas MDCT was helpful in distinguishing MGC from NGC.
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Affiliation(s)
- C Yan
- Department of General Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Zhang J, Ma T, Yang L, Ye Z, Xiang M, Zhu Z. OVERALL ABSTRACT WINNER (CLINICAL OUTCOMES). Jpn J Clin Oncol 2011. [DOI: 10.1093/jjco/hyq256] [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: 11/13/2022] Open
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Xuelian Z, Yitong M, Xiang M, Azhati A, Baozhu W, Liu Fen C. e0079 Preservation of the cardiac function in infarcted rat hearts by the transplantation of adipose-derived stem cells with injectable fibrin scaffolds. Heart 2010. [DOI: 10.1136/hrt.2010.208967.79] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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35
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Doucette TA, Kong LY, Yang Y, Wei J, Wang J, Fuller GN, Heimberger AB, Rao G, Ajewung N, Kamnasaran D, Katz AM, Amankulor N, Squatrito M, Hambardzumyan D, Holland EC, Poschl J, Lorenz A, Von Bueren A, Li S, Peraud A, Tonn JC, Herms J, Xiang M, Rutkowski S, Kretzschmar H, Schuller U, Studebaker A, Raffel C, Aoki Y, Hashizume R, Ozawa T, Gupta N, James CD, Navis AC, Hamans BC, Claes A, Heerschap A, Wesseling P, Jeuken JW, Leenders WP, Agudelo PA, Williams S, Nowicki MO, Johnson J, Li PK, Chiocca EA, Lannutti JJ, Lawler SE, Viapiano MS, Bergeron J, Aliaga A, Bedell B, Soderquist C, Sonabend A, Lei L, Crisman C, Yun JP, Sisti J, Castelli M, Bruce JN, Canoll P, Kirsch M, Stelling A, Salzer R, Krafft C, Schackert G, Steiner G, Balvers RK, van den Hengel SK, Wakimoto H, Hoeben RC, Leenstra S, Dirven CM, Lamfers ML, Sabha NS, Agnihotri S, Wolf A, von Deimling A, Croul S, Guha A, Trojahn US, Lenferink A, Bedell B, O'Connor-McCourt M, Wakimoto H, Kanai R, Curry WT, Yip S, Barnard ZR, Mohapatra G, Stemmer-Rachamimov AO, Martuza RL, Rabkin SD, Binder ZA, Salmasi V, Lim M, Weingart J, Brem H, Olivi A, Riggins GJ, Gallia GL, Rong Y, Zhang Z, Gang C, Tucker-Burden C, Van Meir E, Brat DJ, Balvers RK, Kloezeman JJ, Kleijn A, French PJ, Dirven CM, Leenstra S, Lamfers ML, Balvers RK, Kloezeman JJ, Spoor JK, Dirven CM, Lamfers ML, Leenstra S, Bazzoli E, Fomchenko EI, Schultz N, Brennan C, DeAngelis LM, Holland EC, Nimer SD, Squatrito M, Mohyeldin A, Hsu W, Shah SR, Adams H, Shah P, Katuri L, Kosztowski T, Loeb DM, Wolinsky JP, Gokaskan ZL, Quinones-Hinojosa A, Daphu IK, Immervoll H, Bjerkvig R, Thorsen F, Caretti V, Idema S, Zondervan I, Meijer DH, Lagerweij T, Barazas M, Vos W, Hamans B, van der Stoop P, Hulleman E, van der Valk P, Bugiani M, Wesseling P, Vandertop WP, Noske D, Kaspers GJ, Molthoff C, Wurdinger T, Chow LM, Endersby R, Zhu X, Rankin S, Qu C, Zhang J, Ellison DW, Baker SJ, Tabar V, LaFaille F, Studer L. Tumor Models (In Vivo/In Vitro). Neuro Oncol 2010. [DOI: 10.1093/neuonc/noq116.s20] [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: 11/14/2022] Open
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36
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Xiang X, Yitong M, Yining Y, Ding H, Xiaomei L, Xiang M, Bangdang C, Fev L. e0256 Alcohol consumption and ankle-to-brachial index. Heart 2010. [DOI: 10.1136/hrt.2010.208967.256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Xiang X, Yitong M, Yining Y, Zhenyan F, Xiang M, Ding H, Xiaomei L, Bangdang C, Fen L. e0255 Relationship of alcohol consumption and carotid atherosclerosis in Chinese Han Uighur and Hazakh cohort. Heart 2010. [DOI: 10.1136/hrt.2010.208967.255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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38
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Zixiang Y, Yitong M, Yining Y, Ding H, Xiang M, Fen L. e0252 Prevalence of metabolic syndrome in Xinjiang Kazak populations. Heart 2010. [DOI: 10.1136/hrt.2010.208967.252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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39
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Xiang X, Yitong M, Yining Y, Zhenyan F, Xiaomei L, Ding H, Xiang M, Bangdang C, Fen L. e0081 Association of genetic polymorphisms of SAA1 and SAA2 with coronary artery disease in Chinese Han population. Heart 2010. [DOI: 10.1136/hrt.2010.208967.81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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40
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Yan C, Zhu ZG, Yan M, Zhang H, Pan ZL, Chen J, Xiang M, Chen MM, Liu BY, Yin HR, Lin YZ. Size of the largest lymph node visualized on multi-detector-row computed tomography (MDCT) is useful in predicting metastatic lymph node status of gastric cancer. J Int Med Res 2010; 38:22-33. [PMID: 20233510 DOI: 10.1177/147323001003800103] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
This study was designed to investigate whether the size of the largest lymph node (long-axis diameter [LAD] and short-axis diameter [SAD]) visualized using multi-detector-row computed tomography (MDCT) was useful for predicting the metastatic lymph node (MLN) status of gastric cancer. A retrospective analysis of 305 gastric cancer patients who underwent pre-operative MDCT was performed, followed by a prospective study in 61 gastric cancer patients to determine the diagnostic effectiveness of LAD and SAD. In the retrospective study, the accuracy of LAD and SAD for predicting the MLN status of gastric cancer was 51.1% and 45.9%, respectively. In the prospective study, the accuracy of LAD and SAD measurement and the traditional MDCT method of counting MLNs was 52.5%, 49.2% and 57.4%, respectively; the differences were not significant. In conclusion, the size of the largest lymph node in terms of LAD and SAD visualized on MDCT was useful for predicting the MLN status of gastric cancer, with accuracy comparable to the traditional MDCT method of counting the total number of MLNs detected.
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Affiliation(s)
- C Yan
- Department of General Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Sah BK, Zhu ZG, Wang XY, Yang QM, Chen MM, Xiang M, Chen J, Yan M. Post-operative complications of gastric cancer surgery: female gender at high risk. Eur J Cancer Care (Engl) 2009; 18:202-8. [PMID: 19267738 PMCID: PMC2702005 DOI: 10.1111/j.1365-2354.2008.01036.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We applied physiological and operative severity score for the enumeration of morbidity and mortality (POSSUM) to evaluate overall surgical outcome and investigated the role of gender for early post-operative complications in gastric cancer surgery. The data from a total of 357 patients of gastric cancer were analysed by univariate and multivariate analysis. Post-operative complications were recorded according to definition of POSSUM. Post-operative complications of male and female patients were compared separately. The observed to estimated morbidity ratio (O:E) was 1.01. Among the pre-operative variables, patient gender was one of the independent risk factors for a higher rate of post-operative complications (risk ratio 1.777, P = 0.024). Post-operative complication was significantly higher in female patients. Similarly, post-operative length of stay was significantly longer and more severe complications were observed in female patients (P = 0.03). In conclusion, POSSUM system is a valid algorithm for risk-adjusted surgical audit. We conclude that a patient's gender influences the early post-operative complications after gastric cancer surgery. A detailed understanding on disparity of early post-operative complications between men and women may provide valuable information to improve surgical outcome of gastric cancer. However, results of this study need further confirmation by a prospective study involving a larger cohort.
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Affiliation(s)
- B K Sah
- Department of General Surgery, Rui Jin Hospital, Shanghai Jiao Tong University, School of Medicine. Shanghai Institute of Digestive Surgery, Shanghai, China
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Zhang C, Zou X, Leluo G, Xu J, Xiang M. Prevention of type 1 diabetes by immature dendritic cells treated with an ethanol extract of Paecilomyces hepiali Chen mycelium. ACTA ACUST UNITED AC 2008. [DOI: 10.1358/mf.2008.30.6.1254246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
AIM To examine the concentrations of zinc and omega-6 polyunsaturated fatty acids (omega-6 PUFAs) in breast milk, the impact of zinc on omega-6 PUFA metabolism, and the growth rate of infants. METHODS Forty-one mother-term infant pairs from a rural area of northern Beijing, China, who were 1 month (n = 18, group I) and 3 months (n = 23, group II) old and exclusively breastfed, were studied. The dietary records and the concentrations of zinc and omega-6 PUFAs in the milk of lactating women and the increase in weight and length of their infants during 1 and 3 postnatal months were analysed. RESULTS The dietary intakes of mothers in the two groups were the same, i.e. high in carbohydrate and low in fat, protein and energy. The maternal zinc intake was 7.5mg/d and thus reached only 34.6% of the current Recommended Nutrient Intake (RNI). The levels of zinc and arachidonic acid (AA, C20:4 omega-6) in the milk of group I were significantly higher than those in group II. Furthermore, significant positive correlations were found between the concentrations of zinc and AA in the breast milk and between the level of milk AA and weight gain. CONCLUSION Zinc may be a co-factor and essential for essential fatty acids (EFA) metabolism. Thus suboptimal zinc intake may cause EFA imbalance. Further studies of Chinese rural mother-infant pairs are necessary to determine whether zinc supplementation should be recommended when lactation exceeds 3 months.
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Affiliation(s)
- M Xiang
- Centre for Biosciences Research, School of Science, University of Greenwich, Kent, UK.
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Xiang M, Rahman MA, Ai H, Li X, Harbige LS. Diet and Gene Expression: Delta-5 and Delta-6 Desaturases in Healthy Chinese and European Subjects. Ann Nutr Metab 2007; 50:492-8. [PMID: 16988497 DOI: 10.1159/000095829] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2005] [Accepted: 05/15/2006] [Indexed: 11/19/2022]
Abstract
AIM To compare the composition of fatty acids (FAs) in diet, and the expression of delta-6 desaturase (D6D) and delta-5 desaturase (D5D) genes in peripheral blood mononuclear cells (PBMCs) between Chinese and Europeans. METHODS Three-day dietary records from 20 subjects from Beijing, China (n = 10) and Kent, UK (n = 10) were analysed. Expression of PBMC D6D and D5D genes of the subjects was determined using RT-PCR. RESULTS The dietary intake of Chinese subjects contained less saturated fatty acids (SFAs) and monounsaturated fatty acids (MUFAs), but more essential fatty acids (EFAs) than that of Europeans. Levels of expression of PBMC D6D and D5D genes of Chinese subjects were significantly lower than those of Europeans. A significant positive correlation was found between dietary intake of total SFAs and total MUFAs and expression of PBMC D6D and D5D genes, but a significant negative correlation between dietary intake of linoleic acid (LA) and alpha-linolenic acid (LNA) and the expression of PBMC D6D and D5D genes. CONCLUSION Intake of high SFAs and MUFAs appears to increase expression of PBMC D6D and D5D genes, whilst high EFAs intake appears to decrease expression of PBMC D6D and D5D genes. A follow-up study of the expression of D6D and D5D genes in Chinese who live in European countries with high SFA and MUFA diets would be of interest.
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Affiliation(s)
- M Xiang
- Centre for Biosciences Research, School of Science, University of Greenwich, Kent, UK
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Ichikawa H, Qiu F, Xiang M, Sugimoto T. Brn-3a is required for the generation of proprioceptors in the mesencephalic trigeminal tract nucleus. Brain Res 2005; 1053:203-6. [PMID: 16040009 DOI: 10.1016/j.brainres.2005.06.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2005] [Revised: 06/07/2005] [Accepted: 06/10/2005] [Indexed: 10/25/2022]
Abstract
The distribution of motor and proprioceptive neurons was investigated in the trigeminal nervous system of wild-type and Brn-3a knockout mice at embryonic day 18.5 and postnatal day 0. We found that the trigeminal motor nucleus (Mo5) contained abundant motoneurons in wild-type (mean number +/- SD per section = 128 +/- 22, range = 93-167) and knockout (mean number +/- SD per section = 121 +/- 23, range = 75-158) mice and that the cell size of Mo5 neurons was similar between these mice (wild-type, mean +/- SD = 165 +/- 59 microm2, range = 65-326 microm2; knockout, mean +/- SD = 167 +/- 59 microm2, range = 71-327 microm2). Mo5 neurons were immunoreactive for calcitonin gene-related peptide and such immunoreactive neurons were abundant in both wild-type and mutant mice. In the mesencephalic tract nucleus (Mes5) of wild-type mice, many proprioceptors (mean number +/- SD per section = 56 +/- 19, range = 27-85) that contained parvalbumin immunoreactivity were also observed. In knockout mice, however, Mes5 neurons could not be detected. The area of brainstems which normally contained the Mes5 was devoid of parvalbumin-immunoreactive proprioceptors. The present study suggests that Brn-3a is required for the development of proprioceptors but not motoneurons in the trigeminal nervous system.
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Affiliation(s)
- H Ichikawa
- Department of Oral Function and Anatomy, Okayama University Graduate School of Medicine and Dentistry, 2-5-1 Shikata-cho, Okayama 700-8525, Japan.
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Ichikawa H, Schulz S, Höllt V, Mo Z, Xiang M, Sugimoto T. Effect of Brn-3a deficiency on primary nociceptors in the trigeminal ganglion. Neurosci Res 2005; 51:445-51. [PMID: 15740807 DOI: 10.1016/j.neures.2004.12.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2004] [Revised: 12/20/2004] [Accepted: 12/24/2004] [Indexed: 11/17/2022]
Abstract
Immunohistochemistry for substance P, somatostatin and vanilloid receptor subtype 1 as well as receptors for somatostatin and opioids was performed on the trigeminal ganglion in wild-type and Brn-3a knockout mice at postnatal day 0. In wild-type mice, the trigeminal ganglion contained abundant substance P-, vanilloid receptor subtype 1-, sst2A receptor- and delta-opioid receptor-immunoreactive neurons, while the ganglion had only a few mu-opioid receptor-immunoreactive neurons. The Brn-3a deficiency had an effect on the cell size but not the number of substance P-immunoreactive neurons. In knockout mice, the proportion of small immunoreactive neurons markedly increased and that of medium- to large-sized immunoreactive ones correspondingly decreased (mean +/- S.D. = 54.7 +/- 29.1 microm2, range = 10.9-220.8 microm2) compared to wild-type mice (mean +/- S.D. = 116.6 +/- 58.6 microm2, range = 27.3-400.7 microm2). As for vanilloid receptor subtype 1-immunoreactive neurons, the number and cell size was barely affected by the deficiency. On the other hand, the loss of Brn-3a caused a decrease in the number of sst2A receptor- or delta-opioid receptor-immunoreactive neurons (more than 95% reduction) and an increase in the number of mu-opioid receptor-immunoreactive neurons (9.3-fold increase). Somatostatin-immunoreactive neurons were not detected in the trigeminal ganglion of wild-type or mutant mice at postnatal day 0. The present study suggests that Brn-3a deficiency may have effects on the survival of trigeminal nociceptors and their expression of some neurochemical substances.
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Affiliation(s)
- H Ichikawa
- Department of Oral Function and Anatomy, Okayama University Graduate School of Medicine and Dentistry, Okayama 700-8525, Japan.
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Ichikawa H, Mo Z, Xiang M, Sugimoto T. Effect of Brn-3a deficiency on parvalbumin-immunoreactive primary sensory neurons in the dorsal root ganglion. Brain Res Dev Brain Res 2004; 150:41-5. [PMID: 15126036 DOI: 10.1016/j.devbrainres.2004.02.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/13/2004] [Indexed: 01/02/2023]
Abstract
Immunohistochemistry for parvalbumin, a marker for primary proprioceptors, was performed on the dorsal root ganglion (DRG) of wildtype and knockout mice for Brn-3a at postnatal day 0 and embryonic day 18.5. The DRG contained many parvalbumin-immunoreactive (ir) neurons in wildtype (5.4%) and knockout mice (5.6%). Cell size analysis demonstrated that such neurons were mostly medium-sized to large in these mice. Therefore, it is unlikely that the survival of proprioceptors is dependent upon Brn-3a in the DRG. In the dorsal column and gray matter of the spinal cord of knockout mice, however, parvalbumin-ir nerve fibers were sparse compared to wildtype mice. The number of parvalbumin-ir varicosities around motoneurons decreased in the mutant. Thus, our data suggest that Brn-3a may play an important role in the central projection and terminal formation of DRG proprioceptors in the spinal cord.
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Affiliation(s)
- H Ichikawa
- Department of Oral Function and Anatomy, Okayama University Graduate School of Medicine and Dentistry, Okayama, Japan.
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Hexemer A, Sivaniah E, Kramer EJ, Xiang M, Li X, Fischer DA, Ober CK. Managing polymer surface structure using surface active block copolymers in block copolymer mixtures. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/polb.10686] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ichikawa H, Yamaai T, Jacobowitz DM, Mo Z, Xiang M, Sugimoto T. Effect of Brn-3a deficiency on parvalbumin-, calbindin D-28k-, calretinin- and calcitonin gene-related peptide-immunoreactive primary sensory neurons in the trigeminal ganglion. Neuroscience 2002; 113:537-46. [PMID: 12150774 DOI: 10.1016/s0306-4522(02)00182-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [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: 11/22/2022]
Abstract
Immunohistochemistry for parvalbumin, calbindin D-28k, calretinin and calcitonin gene-related peptide (CGRP) was performed on the trigeminal ganglion and oro-facial tissues in Brn-3a wildtype and knockout mice at embryonic day 18.5 and postnatal day 0. In wildtype mice, the trigeminal ganglion contained abundant parvalbumin-, calbindin D-28k- and CGRP-immunoreactive neurons while the ganglion was almost devoid of calretinin-immunoreactive neurons. In Brn-3a knockout mice, a 63% decrease of parvalbumin-immunoreactive neurons was detected. In contrast, the absence of Brn-3a dramatically increased the number of calbindin D-28k-immunoreactive (3.5-fold increase) and calretinin-immunoreactive neurons (91-fold increase). The number of CGRP-immunoreactive neurons, however, was not altered by the Brn-3a deficiency. Cell size analysis indicated that loss of Brn-3a increased the proportions of small (<100 microm (2)) parvalbumin-, calbindin D-28k- and CGRP-immunoreactive neurons while it decreased those of large (>200 microm(2)) immunoreactive cells. Calretinin-immunoreactive neurons were either small or medium (100-200 microm (2)) in mutant mice. The oro-facial tissues contained parvalbumin-, calbindin D-28k- and CGRP-immunoreactive fibers, but not calretinin-immunoreactive ones in wildtype mice. In Brn-3a knockout mice, the number of parvalbumin-immunoreactive fibers markedly decreased in the infraorbital nerve and parvalbumin-immunoreactive endings disappeared in the vibrissa. In contrast, the number of calbindin D-28k-immunoreactive fibers increased significantly in the infraorbital and mental nerves. In addition, calbindin D-28k-immunoreactive endings appeared in the vibrissa. As well, some fibers showed calretinin-immunoreactivity in the infraorbital nerve of the mutant. However, no obvious change of CGRP-immunoreactive fibers was observed in the oro-facial region of knockout mice. Taken together, our data suggest that Brn-3a deficiency has effects on the expression of neurochemical substances in the trigeminal ganglion.
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Affiliation(s)
- H Ichikawa
- Department of Oral Function and Anatomy, Okayama University Graduate School of Medicine and Dentistry, 2-5-1 Shikata-cho, Okayama 700-8525, Japan.
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Ichikawa H, Mo Z, Xiang M, Sugimoto T. Effect of Brn-3a deficiency on nociceptors and low-threshold mechanoreceptors in the trigeminal ganglion. Brain Res Mol Brain Res 2002; 104:240-5. [PMID: 12225879 DOI: 10.1016/s0169-328x(02)00355-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Immunohistochemistry for protein gene product 9.5 (PGP 9.5, a neuron specific protein) and vanilloid receptor 1-like receptor (VRL-1, a marker for medium-sized to large primary nociceptors) were used to assess the effects of Brn-3a deficiency on neuronal innervation of oral tissues and neurons of the trigeminal ganglion (TG). In the knockout mouse, the number of PGP 9.5-immunoreactive (-ir) nerve fibers decreased in the facial cutaneous and oral mucous epithelia, as well as the incisor and molar tooth germs. The reduction of PGP 9.5-ir Merkel endings was also observed in some vibrissae. No obvious change was detected in other tissues. Cell size analysis demonstrated that the proportion of small neurons markedly increased while that of medium-sized and large neurons significantly decreased in the TG of the mutant. Moreover, Brn-3a deficiency caused the disappearance of TG neurons which were immunoreactive for VRL-1. Together, our data suggest that nociceptors and low-threshold mechanoreceptors with medium-sized to large cell bodies may be sensitive to the loss of Brn-3a.
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Affiliation(s)
- H Ichikawa
- Department of Oral Function and Anatomy, Okayama University Graduate School of Medicine and Dentistry, 2-5-1 Shikata-cho, Okayama, Japan.
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