1
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Cui YH, Liu CQ, Song XL, Yi WZ, Liu Q, Liu JM, Wu YN, Chen JY, Yang LJ, He HY, Meng J, Pan HW. Integrative Analysis of miRNA and circRNA Expression Profiles and Interaction Network in HSV-1-Infected Primary Corneal Epithelial Cells. Curr Eye Res 2024; 49:368-379. [PMID: 38164922 DOI: 10.1080/02713683.2023.2297345] [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: 09/23/2023] [Accepted: 12/15/2023] [Indexed: 01/03/2024]
Abstract
PURPOSE Circular RNAs (circRNAs) are products of alternative splicing with roles as competitive endogenous RNAs or microRNA sponges, regulating gene expression and biological processes. However, the involvement of circRNAs in herpes simplex keratitis remains largely unexplored. METHODS This study examines circRNA and miRNA expression profiles in primary human corneal epithelial cells infected with HSV-1, compared to uninfected controls, using microarray analysis. Bioinformatic analysis predicted the potential function of the dysregulated circRNAs and microRNA response elements (MREs) in these circRNAs, forming an interaction network between dysregulated circRNAs and miRNAs. RESULTS A total of 332 circRNAs and 16 miRNAs were upregulated, while 80 circRNAs and six miRNAs were downregulated (fold change ≥2.0 and p < 0.05). Gene ontology (GO) and KEGG pathway analyses were performed on parental genes of dysregulated circRNAs to uncover potential functions in HSV-1 infection. Notably, miR-181b-5p, miR-338-3p, miR-635, and miR-222-3p emerged as pivotal miRNAs interacting with multiple dysregulated circRNAs. CONCLUSIONS This comprehensive study offers insights into differentially expressed circRNAs and miRNAs during HSV-1 infection in corneal epithelial cells, shedding light on circRNA-miRNA interactions' potential role in herpes simplex keratitis pathogenesis.
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Affiliation(s)
- Yu-Hong Cui
- Guangzhou Institute of Cardiovascular Disease, The Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Chao-Qun Liu
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Xi-Ling Song
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Wan-Zhao Yi
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Qi Liu
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Jing-Min Liu
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Ya-Ni Wu
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Jian-Ying Chen
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Lv-Jun Yang
- Guangzhou Institute of Cardiovascular Disease, The Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Hui-Ying He
- Guangzhou Institute of Cardiovascular Disease, The Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Jing Meng
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Hong-Wei Pan
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou, China
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Liu Q, Liu CQ, Yi WZ, Ouyang PW, Yang BF, Liu Q, Liu JM, Wu YN, Liang AR, Cui YH, Meng J, Li XY, Pan HW. Ferroptosis Contributes to Microvascular Dysfunction in Diabetic Retinopathy. Am J Pathol 2024:S0002-9440(24)00069-5. [PMID: 38417697 DOI: 10.1016/j.ajpath.2024.01.019] [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] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 01/07/2024] [Accepted: 01/29/2024] [Indexed: 03/01/2024]
Abstract
Ferroptosis is a new form of cell death characterized by iron-dependent lipid peroxidation. Whether ferroptosis is involved in retinal microvascular dysfunction under diabetic condition is not known. The expression of ferroptosis-related genes in patients with proliferative diabetic retinopathy and in diabetic mice was determined with RT-qPCR. Reactive oxygen species, iron content, lipid peroxidation products, and ferroptosis-associated proteins in the cultured human retinal microvascular endothelial cells (HRMECs) and in the retina of diabetic mice were examined. The association of ferroptosis with the functions of endothelial cells in vitro was evaluated. After administration of ferroptosis-specific inhibitor, Fer-1, the retinal microvasculature in diabetic mice was assessed. Characteristic changes of ferroptosis-associated markers, including GPX4, FTH1, long-chain acyl-CoA synthetase 4, TFRC, and cyclooxygenase-2, were detected in the retinal fibrovascular membrane of patients with proliferative diabetic retinopathy, cultured HRMECs, and the retina of diabetic mice. Elevated levels of reactive oxygen species, lipid peroxidation, and iron content were found in the retina of diabetic mice and in cultured HRMECs. Ferroptosis was found to be associated with HRMEC dysfunction under high-glucose condition. Inhibition of ferroptosis with specific inhibitor Fer-1 in diabetic mice significantly reduced the severity of retinal microvasculopathy. Ferroptosis contributes to microvascular dysfunction in diabetic retinopathy, and inhibition of ferroptosis might be a promising strategy for the therapy of early-stage diabetic retinopathy.
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Affiliation(s)
- Qun Liu
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital, Jinan University, Guangzhou, China; School of Basic Medicine, Nanchang Medical College, Nanchang, China
| | - Chao-Qun Liu
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Wan-Zhao Yi
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Pei-Wen Ouyang
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Bo-Fan Yang
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China
| | - Qi Liu
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Jing-Min Liu
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Ya-Ni Wu
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Ai-Rong Liang
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China
| | - Yu-Hong Cui
- Department of Cardiology, Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China; Department of Histology and Embryology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Jing Meng
- Department of Ophthalmology, The First Affiliated Hospital, Jinan University, Guangzhou, China; The Affiliated Shunde Hospital of Jinan University, Foshan, China
| | - Xiu-Yun Li
- Department of Ophthalmology, Affiliated Hospital of Weifang Medical University, Weifang, China.
| | - Hong-Wei Pan
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China; Department of Ophthalmology, The First Affiliated Hospital, Jinan University, Guangzhou, China.
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Yan LX, Liu CQ, Mei P, Liu C, Chen Y, Zhang MH, Liu J, Liu ZH, Zhang QL, Liu YH. [Multiple tracheal and bronchial glandular papilloma and adenocarcinoma with FGFR1-FILIP1 fusion and FGFR1 amplification: report of a case]. Zhonghua Bing Li Xue Za Zhi 2023; 52:847-849. [PMID: 37527993 DOI: 10.3760/cma.j.cn112151-20221116-00960] [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: 08/03/2023]
Affiliation(s)
- L X Yan
- Department of Pathology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - C Q Liu
- Department of Pathology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - P Mei
- Department of Pathology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - C Liu
- Department of Pathology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Y Chen
- Department of Pathology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - M H Zhang
- Department of Pathology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - J Liu
- Department of Pathology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Z H Liu
- Department of Pathology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Q L Zhang
- Department of Pathology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Y H Liu
- Department of Pathology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
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Zhu M, Guo M, Liu CQ, Songyang Z, Dou WX, Xiong Y. Deep-learning model AIBISI predicts bacterial infection across cancer types based on pathological images. Heliyon 2023; 9:e15400. [PMID: 37101624 PMCID: PMC10123254 DOI: 10.1016/j.heliyon.2023.e15400] [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: 01/10/2023] [Revised: 03/30/2023] [Accepted: 04/06/2023] [Indexed: 04/28/2023] Open
Abstract
Microorganisms play an important role in many physiological functions. Many studies have found that bacteria also regulate cancer susceptibility and tumor progression by affecting some metabolic or immune system signaling pathways. However, current bacterial detection methods are inaccurate or inefficient. Thus, we constructed a deep neural network (AIBISI) based on hematoxylin and eosin (H&E)-stained pathology slides to predict and visualize bacterial infection. Our model performance achieved as high as 0.81 of AUC (area under the ROC curve) within cancer type. We also built a pan-cancer model to predict bacterial infection across cancer types. To facilitate clinical usage, AIBISI visualized image areas affected by possible infection. Importantly, we successfully validated our model (AUC = 0.755) in pathological images from an independent patient cohort of stomach cancer (n = 32). To our best knowledge, this is the first artificial intelligence (AI)-based model to investigate bacterial infection in pathology images and has the potential to enable fast clinical decision related to pathogens in tumors.
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Affiliation(s)
- Miaosong Zhu
- School of Life Sciences, Sun Yat-sen University, 510006, Guangzhou, China
| | - Mengbiao Guo
- School of Life Sciences, Sun Yat-sen University, 510006, Guangzhou, China
| | - Chao-Qun Liu
- Department of Pathology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 510080, Guangzhou, China
| | - Zhou Songyang
- School of Life Sciences, Sun Yat-sen University, 510006, Guangzhou, China
| | - Wen-Xian Dou
- Department of Pathology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 510080, Guangzhou, China
| | - Yuanyan Xiong
- School of Life Sciences, Sun Yat-sen University, 510006, Guangzhou, China
- Corresponding author.
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5
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Cao XC, Jiang SY, Li SJ, Han JY, Zhou Q, Li MM, Bai RM, Xia SW, Yang ZM, Ge JF, Zhang BQ, Yang CZ, Yuan J, Pan DD, Shi JY, Hu XF, Lin ZL, Wang Y, Zeng LC, Zhu YP, Wei QF, Guo Y, Chen L, Liu CQ, Jiang SY, Li XY, Sun HQ, Qi YJ, Hei MY, Cao Y. [Status of fungal sepsis among preterm infants in 25 neonatal intensive care units of tertiary hospitals in China]. Zhonghua Er Ke Za Zhi 2023; 61:29-35. [PMID: 36594118 DOI: 10.3760/cma.j.cn112140-20220918-00813] [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: 01/04/2023]
Abstract
Objective: To analyze the prevalence and the risk factors of fungal sepsis in 25 neonatal intensive care units (NICU) among preterm infants in China, and to provide a basis for preventive strategies of fungal sepsis. Methods: This was a second-analysis of the data from the "reduction of infection in neonatal intensive care units using the evidence-based practice for improving quality" study. The current status of fungal sepsis of the 24 731 preterm infants with the gestational age of <34+0 weeks, who were admitted to 25 participating NICU within 7 days of birth between May 2015 and April 2018 were retrospectively analyzed. These preterm infants were divided into the fungal sepsis group and the without fungal sepsis group according to whether they developed fungal sepsis to analyze the incidences and the microbiology of fungal sepsis. Chi-square test was used to compare the incidences of fungal sepsis in preterm infants with different gestational ages and birth weights and in different NICU. Multivariate Logistic regression analysis was used to study the outcomes of preterm infants with fungal sepsis, which were further compared with those of preterm infants without fungal sepsis. The 144 preterm infants in the fungal sepsis group were matched with 288 preterm infants in the non-fungal sepsis group by propensity score-matched method. Univariate and multivariate Logistic regression analysis were used to analyze the risk factors of fungal sepsis. Results: In all, 166 (0.7%) of the 24 731 preterm infants developed fungal sepsis, with the gestational age of (29.7±2.0) weeks and the birth weight of (1 300±293) g. The incidence of fungal sepsis increased with decreasing gestational age and birth weight (both P<0.001). The preterm infants with gestational age of <32 weeks accounted for 87.3% (145/166). The incidence of fungal sepsis was 1.0% (117/11 438) in very preterm infants and 2.0% (28/1 401) in extremely preterm infants, and was 1.3% (103/8 060) in very low birth weight infants and 1.7% (21/1 211) in extremely low birth weight infants, respectively. There was no fungal sepsis in 3 NICU, and the incidences in the other 22 NICU ranged from 0.7% (10/1 397) to 2.9% (21/724), with significant statistical difference (P<0.001). The pathogens were mainly Candida (150/166, 90.4%), including 59 cases of Candida albicans and 91 cases of non-Candida albicans, of which Candida parapsilosis was the most common (41 cases). Fungal sepsis was independently associated with increased risk of moderate to severe bronchopulmonary dysplasia (BPD) (adjusted OR 1.52, 95%CI 1.04-2.22, P=0.030) and severe retinopathy of prematurity (ROP) (adjusted OR 2.55, 95%CI 1.12-5.80, P=0.025). Previous broad spectrum antibiotics exposure (adjusted OR=2.50, 95%CI 1.50-4.17, P<0.001), prolonged use of central line (adjusted OR=1.05, 95%CI 1.03-1.08, P<0.001) and previous total parenteral nutrition (TPN) duration (adjusted OR=1.04, 95%CI 1.02-1.06, P<0.001) were all independently associated with increasing risk of fungal sepsis. Conclusions: Candida albicans and Candida parapsilosis are the main pathogens of fungal sepsis among preterm infants in Chinese NICU. Preterm infants with fungal sepsis are at increased risk of moderate to severe BPD and severe ROP. Previous broad spectrum antibiotics exposure, prolonged use of central line and prolonged duration of TPN will increase the risk of fungal sepsis. Ongoing initiatives are needed to reduce fungal sepsis based on these risk factors.
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Affiliation(s)
- X C Cao
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - S Y Jiang
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - S J Li
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J Y Han
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Q Zhou
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - M M Li
- Department of Neonatology, Women's Hospital of Nanjing Medical University, Nanjing 210004, China
| | - R M Bai
- Department of Neonatology, Northwest Women's and Children's Hospital, Xi'an 200001, China
| | - S W Xia
- Department of Neonatology, Maternal and Child Hospital of Hubei Province, Wuhan 430064, China
| | - Z M Yang
- Department of Neonatology, Suzhou Municipal Hospital, Suzhou 215008, China
| | - J F Ge
- Department of Neonatology, Shanxi Children's Hospital, Taiyuan 030006, China
| | - B Q Zhang
- Department of Neonatology, Fujian Maternity and Child Health Hospital, Fuzhou 350005, China
| | - C Z Yang
- Department of Neonatology, the Affiliated Shenzhen Maternity and Child Healthcare Hospital of Southern Medical University, Shenzhen 518047, China
| | - J Yuan
- Department of Neonatology, Qingdao Women and Children's Hospital, Qingdao 266011, China
| | - D D Pan
- Department of Neonatology, Guiyang Maternal and Child Health Care Hospital, Guiyang Children's Hospital, Guiyang 550002, China
| | - J Y Shi
- Department of Neonatology, Gansu Provincial Maternity and Child-care Hospital, Lanzhou 730050, China
| | - X F Hu
- Department of Neonatology, Shanghai First Maternal and Infant Hospital, Shanghai 201204, China
| | - Z L Lin
- Department of Neonatology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325088, China
| | - Y Wang
- Department of Neonatology, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - L C Zeng
- Department of Neonatology, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| | - Y P Zhu
- Department of Neonatology, the First Affiliated Hospital of Xinjiang Medical University, Urumchi 830054, China
| | - Q F Wei
- Department of Neonatology, Maternity and Child Health Care of Guangxi Zhuang Autonomous Region, Nanning 530002, China
| | - Y Guo
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - L Chen
- Department of Neonatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
| | - C Q Liu
- Department of Neonatology, Children's Hospital of Hebei Province, Shijiazhuang 050031, China
| | - S Y Jiang
- Department of Neonatology, Wuxi Maternal and Child Health Care Hospital, Wuxi 214002, China
| | - X Y Li
- Department of Neonatology, Children's Hospital Affiliated to Shandong University, Jinan Children's Hospital, Jinan 250022, China
| | - H Q Sun
- Division of Neonatology, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450018, China
| | - Y J Qi
- Department of Neonatology, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - M Y Hei
- Department of Neonatology, the Third Xiangya Hospital of Central South University, Changsha 410013, China
| | - Y Cao
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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Liu CQ, Liu XY, Ouyang PW, Liu Q, Huang XM, Xiao F, Cui YH, Zhou Q, Pan HW. Ferrostatin-1 attenuates pathological angiogenesis in oxygen-induced retinopathy via inhibition of ferroptosis. Exp Eye Res 2023; 226:109347. [PMID: 36502924 DOI: 10.1016/j.exer.2022.109347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 11/08/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
Retinopathy of prematurity (ROP) is a vision-threatening ocular disease that occurs in premature infants, but the underlying mechanism is still unclear. Since oxidative stress has been well documented in the ROP development, we aimed to investigate whether ferroptosis, a new type of cell death characterized by lipid peroxidation and iron overload, is also involved in ROP. We detected the lipid peroxidation, oxidative stress and the expression of ferroptosis markers in the retina of mouse model of oxygen-induced retinopathy. After ferroptosis inhibitor, ferrostatin-1, was administered by intravitreal injection, ferroptosis marker, lipid peroxidation, retinal vasculature and glial cell activation were examined. We found decreased expression of SLC7A11 and GPX4, increased expression of FTH1 and TFRC, as well as increase of lipid peroxidation in the retina of OIR mice. Ferrostatin-1 administration significantly reduced lipid peroxidation, and also reversed the change of ferroptosis marker. Neovascular area and avascular area were suppressed and the pathological vasculature changes including acellular vessels and ghost pericytes were decreased. Microglial cell and Müller cell activation was not evidently influenced by ferrostatin-1 treatment. Our findings suggest that ferroptosis is involved in the pathological angiogenesis and might be a promising target for ROP therapy.
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Affiliation(s)
- Chao-Qun Liu
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou, China; Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiao-Yong Liu
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Pei-Wen Ouyang
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou, China; Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China
| | - Qun Liu
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiao-Mei Huang
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou, China; Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China
| | - Fan Xiao
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China; Department of Public Health and Preventive Medicine, Jinan University, Guangzhou, China
| | - Yu-Hong Cui
- Guangzhou Institute of Cardiovascular Disease, The Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China; Department of Histology and Embryology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Qing Zhou
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou, China.
| | - Hong-Wei Pan
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou, China; Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China.
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Huang ZN, Liu CQ, Guo MF, Xu MQ, Sun XH, Wang GX, Xie MR. [Clinical analysis of inflatable video-assisted mediastinoscopic transhiatal esophagectomy combined with laparoscopy]. Zhonghua Wai Ke Za Zhi 2023; 61:48-53. [PMID: 36603884 DOI: 10.3760/cma.j.cn112139-20220612-00265] [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: 01/07/2023]
Abstract
Objective: To examine the safety and effectiveness of inflatable video-assisted mediastinoscopic transhiatal esophagectomy (IVMTE). Methods: Totally 269 patients admitted to the Anhui Provincial Hospital of Anhui Medical University who underwent IVMTE (IVMTE group, n=47) or thoracoscopy combined with minimally invasive Mckeown esophageal cancer resection (MIME group, n=222) from September 2017 to December 2021 were analyzed retrospectively. There were 31 males and 16 females in IVMTE group, aged (68.6±7.5) years (range: 54 to 87 years). There were 159 males and 63 females in MIME group, aged (66.8±8.8) years (range: 42 to 93 years). A 1∶1 match was performed on both groups by propensity score matching, with 38 cases in each group. The intraoperative conditions and postoperative complication rates of the two groups were compared by t test, Wilcoxon rank, χ2 test, or Fisher exact probability method. Results: Patients in IVMTE group had less intraoperative bleeding ((96.0±39.2) ml vs. (123.8±49.3) ml, t=-2.627, P=0.011), shorter operation time ((239.1±47.3) minutes vs. (264.2±57.2) minutes, t=-2.086, P=0.040), and less drainage 3 days after surgery (85(89) ml vs. 675(573) ml, Z=-7.575, P<0.01) compared with that of MIME group. There were no statistically significant differences between the two groups in terms of drainage tube-belt time, postoperative hospital stay, and lymph node dissection stations and numbers (all P>0.05). The incidence of Clavien-Dindo grade 1 to 2 pulmonary infection (7.9%(3/38) vs. 31.6%(12/38), χ²=6.728, P=0.009), total complications (21.1%(8/38) vs. 47.4%(18/38), χ²=5.846, P=0.016) and total lung complications (13.2%(5/38) vs. 42.1%(16/38), χ²=7.962, P=0.005) in the IVMTE group were significantly lower. Conclusion: Inflatable video-assisted mediastinoscopic transhiatal esophagectomy combined with laparoscopic esophagectomy is safe and feasible, which can reach the same range of oncology as thoracoscopic surgery.
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Affiliation(s)
- Z N Huang
- Department of Thoracic Surgery, Anhui Provincial Hospital Affiliated with Anhui Medical University, Hefei 230000, China
| | - C Q Liu
- Department of Thoracic Surgery, the First Affiliated Hospital of University of Science and Technology of China, Hefei 230000, China
| | - M F Guo
- Department of Thoracic Surgery, the First Affiliated Hospital of University of Science and Technology of China, Hefei 230000, China
| | - M Q Xu
- Department of Thoracic Surgery, the First Affiliated Hospital of University of Science and Technology of China, Hefei 230000, China
| | - X H Sun
- Department of Thoracic Surgery, the First Affiliated Hospital of University of Science and Technology of China, Hefei 230000, China
| | - G X Wang
- Department of Thoracic Surgery, the First Affiliated Hospital of University of Science and Technology of China, Hefei 230000, China
| | - M R Xie
- Department of Thoracic Surgery, Anhui Provincial Hospital Affiliated with Anhui Medical University, Hefei 230000, China
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Zhang FP, Zhu K, Zhu TF, Liu CQ, Zhang HH, Xu LB, Xiao G, Liu C. Intra-Tumoral Secondary Follicle-like Tertiary Lymphoid Structures Are Associated with a Superior Prognosis of Overall Survival of Perihilar Cholangiocarcinoma. Cancers (Basel) 2022; 14:cancers14246107. [PMID: 36551593 PMCID: PMC9776022 DOI: 10.3390/cancers14246107] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/07/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022] Open
Abstract
Ectopic lymphoid structures termed tertiary lymphoid structures (TLSs) have an immunomodulatory function and positively affect prognosis in certain cancers. However, their clinical relevance and prognostic utility in perihilar cholangiocarcinoma (pCCA) are unknown. Therefore, determining the involvement and prognostic utility of TLSs in pCCA is the aim of this study. Ninety-three patients with surgically resected pCCA were included retrospectively. Hematoxylin and eosin and immunohistochemical staining identified and classified the TLSs, and multiplex immunofluorescence determined the TLS composition in the pCCA sample. The correlations between clinical features and TLSs were analyzed using either Fisher's exact test or the Chi-squared test. Recurrence-free survival (RFS) and overall survival (OS) correlations with TLSs were analyzed using Cox regression and Kaplan-Meier analyses. We identified TLSs in 86% of patients with pCCA, including lymphoid aggregates (6.45%), primary (13.98%) and secondary follicles (65.59%). Patients with intra-tumoral secondary follicle-like TLSs (S-TLSs) had better OS (p = 0.003) and RFS (p = 0.0313). The multivariate analysis identified the presence of S-TLSs as a good independent prognostic indicator for OS but not for RFS. Interestingly, the presence of S-TLS only indicated better 5-year OS in 54 patients without lymph node metastasis (LNM-, p = 0.0232) but not in the 39 patients with lymph node metastasis (LNM+, p = 0.1244). Intra-tumoral S-TLSs predicted longer OS in patients with surgically resected pCCA, suggesting intra-tumoral S-TLSs' contribution to effective antitumor immunity and that S-TLSs hold promise for diagnostic and therapeutic development in pCCA.
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Affiliation(s)
- Fa-Peng Zhang
- Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Ke Zhu
- Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Tai-Feng Zhu
- Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Chao-Qun Liu
- Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
- Department of Pathology, Guangdong Provincial People’s Hospital, Academy of Medical Sciences, Guangzhou 510080, China
| | - Hong-Hua Zhang
- Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Lei-Bo Xu
- Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Gang Xiao
- Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
- Department of Thoracic Surgery, Guangzhou First People’s Hospital, South China University of Technology, Guangzhou 510180, China
- Correspondence: (G.X.); (C.L.); Tel.: +86-20-81048236 (G.X.); +86-20-34078840 (C.L.)
| | - Chao Liu
- Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Department of Biliary-Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
- Correspondence: (G.X.); (C.L.); Tel.: +86-20-81048236 (G.X.); +86-20-34078840 (C.L.)
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Sun XW, Liu CQ, Huang C, Wang WG, Guo WS, Zhang QD. [The association of posterior tibial slope changes between joint gap contact force and the range of motion in Oxford mobile bearing unicompartmental knee arthroplasty]. Zhonghua Yi Xue Za Zhi 2022; 102:1904-1909. [PMID: 35768389 DOI: 10.3760/cma.j.cn112137-20220103-00014] [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: 06/15/2023]
Abstract
Objective: To investigate the correlation between the change of posterior tibial slope (PTS) after unicompartmental knee arthroplasty (UKA) and the contact force at the end stage of knee flexion and extension, as well as the postoperative range of motion. Methods: The data of 38 cases (46 knees) of UKAs undertaken in China-Japan Friendship Hospital from June 2020 to June 2021 were analyzed in this study. A custom-designed force sensor was used to measure gap contact force in the medial gap of UKA. The correlations between each two of the three factors-the change of PTS (∆PTS), the gap contact force of full extension and deep flexion and the range of knee motion were analyzed. Results: Totally of 38 patients (46 knees) were enrolled, including 14 males and 24 females, aged (69.1±7.4) years, with an average follow-up of (11.2±3.7) months. The average gap contact force was (88.3±40.6)N, the adjusted contact force of the full extension gap was 81.7%±33.8%, while that of the deep flexion gap was 55.6%±31.0%. At the last follow-up, the fixed flexion degree[M(Q1, Q3)] was 0°(0°, 3°), which was significantly lower than the preoperative value of 0°(0°, 5°) (P<0.05); the postoperative max flexion degree was 115.9°±16.4°, it was increased when compared with the preoperative value of 112.0°±16.8° (P<0.05); and the postoperative PTS was 8.3°±2.7°, and there was no significant difference with the preoperative value (8.6°±2.1°,P>0.05). There was a positive correlation between ∆PTS and both the contact force of full extension gap and the fixed flexion degree (r=0.334 and 0.317, P<0.05). Besides, there was a negative correlation between ∆PTS and the contact force of the deep flexion gap (r=-0.397, P<0.05). However, the correlations between these two factors and the max flexion degree were not significant (P>0.05). Conclusions: The reduction of PTS in UKA would reduce the contact force of the full extension gap, as well as the postoperative fixed flexion deformity. Besides, it could increase the contact force of the deep flexion gap, but would not influence the max flexion degree of the knee postoperatively.
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Affiliation(s)
- X W Sun
- Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - C Q Liu
- Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - C Huang
- Department of Orthopedic Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - W G Wang
- Department of Orthopedic Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - W S Guo
- Department of Orthopedic Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - Q D Zhang
- Department of Orthopedic Surgery, China-Japan Friendship Hospital, Beijing 100029, China
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10
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Liu CQ, Ren Y, Zhang YL. [Research status and strategy of quality control of medicinal and edible food]. Zhongguo Zhong Yao Za Zhi 2022; 47:3963-3967. [PMID: 35850856 DOI: 10.19540/j.cnki.cjcmm.20220322.601] [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: 06/15/2023]
Abstract
As China is implementing "Healthy China" strategy, medicinal and edible food has attracted unprecedented attention due to the dual attributes of food and medicine. However, there is a lack of the quality control standard and the existing quality control research cannot fully reflect the dual attributes of medicinal and edible food, which consequently restrict the development of medicinal and edible food industry. This study reviewed the research status and proposed the strategy of quality control in line with the dual attribu-tes of medicinal and edible food, and clarified the research contents of quality control of medicinal and edible food of different types to provide references for the follow-up quality control of medicinal and edible food.
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Affiliation(s)
- Chao-Qun Liu
- Key Laboratory of Traditional Chinese Medicine Information Engineering of National Administration of Traditional Chinese Medicine, School of Chinese Material Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Yue Ren
- Key Laboratory of Traditional Chinese Medicine Information Engineering of National Administration of Traditional Chinese Medicine, School of Chinese Material Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Yan-Ling Zhang
- Key Laboratory of Traditional Chinese Medicine Information Engineering of National Administration of Traditional Chinese Medicine, School of Chinese Material Medica, Beijing University of Chinese Medicine Beijing 102488, China
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11
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Li HY, Li SJ, Xie QF, Liu JH, Bai RH, Tao RY, Lun XC, Li N, Bo XK, Liu CQ, Han L, Deng BH. Thomson scattering diagnostic system for the XuanLong-50 experiment. Rev Sci Instrum 2022; 93:053504. [PMID: 35649791 DOI: 10.1063/5.0088785] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 04/26/2022] [Indexed: 06/15/2023]
Abstract
A 15-point Thomson scattering diagnostic system is developed for ENN's spherical torus experiment XuanLong-50 (EXL-50). A BeamTech laser with 3 J/pulse (1064 nm wavelength) at 50 Hz repetition rate is chosen for measurements during EXL-50 plasma operations. To enable measurements at low density (∼0.5 × 1018 m-3) plasma operations, the opto-mechanical subsystems are carefully designed to maximize the collection and transmission of the scattered light and to minimize the stray light level. In addition, the high bandwidth trans-impedance amplifiers and segmented high speed waveform digitizers allow for the application of muti-pulse averaging to further improve the signal-to-noise ratio. Details of the diagnostic system are described and initial experimental results are presented.
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Affiliation(s)
- H Y Li
- Hebei Key Laboratory of Compact Fusion, Langfang 065001, China
| | - S J Li
- Hebei Key Laboratory of Compact Fusion, Langfang 065001, China
| | - Q F Xie
- Hebei Key Laboratory of Compact Fusion, Langfang 065001, China
| | - J H Liu
- Hebei Key Laboratory of Compact Fusion, Langfang 065001, China
| | - R H Bai
- Hebei Key Laboratory of Compact Fusion, Langfang 065001, China
| | - R Y Tao
- Hebei Key Laboratory of Compact Fusion, Langfang 065001, China
| | - X C Lun
- Hebei Key Laboratory of Compact Fusion, Langfang 065001, China
| | - N Li
- Hebei Key Laboratory of Compact Fusion, Langfang 065001, China
| | - X K Bo
- Hebei Key Laboratory of Compact Fusion, Langfang 065001, China
| | - C Q Liu
- Hebei Key Laboratory of Compact Fusion, Langfang 065001, China
| | - L Han
- Hebei Key Laboratory of Compact Fusion, Langfang 065001, China
| | - B H Deng
- Hebei Key Laboratory of Compact Fusion, Langfang 065001, China
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12
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Jiang YH, Zhang Y, Wang YY, Zhang WX, Wang MW, Liu CQ, Peng DY, Yu NJ, Wang L, Chen WD. [Extracts of Poria cocos polysaccharides improves alcoholic liver disease in mice via CYP2E1 and NF-κB inflammatory pathways]. Zhongguo Zhong Yao Za Zhi 2022; 47:134-140. [PMID: 35178920 DOI: 10.19540/j.cnki.cjcmm.20210930.402] [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: 06/14/2023]
Abstract
The present study investigated the effect of extract of Poria cocos polysaccharides(PCP) on cytochrome P450 2 E1(CYP2 E1) and nuclear factor κB(NF-κB) inflammatory signaling pathways in alcoholic liver disease(ALD) mice and explored its protective effect and mechanism. Sixty male C57 BL/6 N mice of SPF grade were randomly divided into a control group, a model group, a positive drug group(bifendate, 200 mg·kg~(-1)), and high-(200 mg·kg~(-1)) and low-dose(50 mg·kg~(-1)) PCP groups. Gao-binge mo-del was induced and the mice in each group were treated correspondingly. Liver morphological and pathological changes were observed and organ index was calculated. Serum levels of alanine aminotransferase(ALT) and aspartate aminotransferase(AST) were detected. Malondialdehyde(MDA) and superoxide dismutase(SOD) in liver tissues were detected by assay kits. The levels of interleukin-6(IL-6) and tumor necrosis factor-α(TNF-α) were detected by ELISA. The activation of macrophages was observed by immunofluorescence staining and protein expression of CYP2 E1, Toll-like receptor 4(TLR4), NF-κB p65, and phosphorylated NF-κB p65(p-NF-κB p65) were analyzed by Western blot. The ALD model was properly induced. Compared with the model group, the PCP groups significantly improved the pathological injury of liver tissues. Immunofluorescence staining revealed that compared with the model group, the groups with drug intervention showed decreased macrophages in liver tissues. Additionally, the PCP groups showed reduced ALT, AST, MDA, IL-6, and TNF-α(P<0.05), and potentiated activity of SOD(P<0.01). PCP extract has the protective effect against alcoholic liver injury in mice, and the underlying mechanism may be related to the regulation of the expression of CYP2 E1 and inhibition of TLR4/NF-κB inflammatory signaling pathway to reduce oxidative stress and inflammatory injury, thereby inhibiting the development of ALD.
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Affiliation(s)
- Yue-Hang Jiang
- Anhui University of Chinese Medicine Hefei 230012, China
| | - Yue Zhang
- Anhui University of Chinese Medicine Hefei 230012, China
| | - Yan-Yan Wang
- Anhui University of Chinese Medicine Hefei 230012, China
| | - Wen-Xin Zhang
- Anhui University of Chinese Medicine Hefei 230012, China
| | - Meng-Wen Wang
- Anhui University of Chinese Medicine Hefei 230012, China
| | - Chao-Qun Liu
- Anhui University of Chinese Medicine Hefei 230012, China
| | - Dai-Yin Peng
- Anhui University of Chinese Medicine Hefei 230012, China Anhui Province Key Laboratory of Chinese Medicinal Formula Hefei 230012, China
| | - Nian-Jun Yu
- Anhui University of Chinese Medicine Hefei 230012, China
| | - Lei Wang
- Anhui University of Chinese Medicine Hefei 230012, China Anhui Province Key Laboratory of Chinese Medicinal Formula Hefei 230012, China Anhui Province Key Laboratory of Traditional Chinese Medicine Decoction Pieces of New Manufacturing Technology Hefei 230012, China Institute of Pharmaceutics, Anhui Academy of Chinese Medicine Hefei 230012, China
| | - Wei-Dong Chen
- Anhui University of Chinese Medicine Hefei 230012, China Anhui Province Key Laboratory of Chinese Medicinal Formula Hefei 230012, China Anhui Province Key Laboratory of Traditional Chinese Medicine Decoction Pieces of New Manufacturing Technology Hefei 230012, China Institute of Pharmaceutics, Anhui Academy of Chinese Medicine Hefei 230012, China
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Wu C, Lin J, Weng Y, Zeng DN, Xu J, Luo S, Xu L, Liu M, Hua Q, Liu CQ, Li JQ, Liao J, Sun C, Zhou J, Chen MS, Liu C, Guo Z, Zhuang SM, Huang JH, Zheng L. Myeloid signature reveals immune contexture and predicts the prognosis of hepatocellular carcinoma. J Clin Invest 2021; 130:4679-4693. [PMID: 32497024 DOI: 10.1172/jci135048] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [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: 11/15/2019] [Accepted: 05/29/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUNDDespite an increasing appreciation of the roles that myeloid cells play in tumor progression and therapy, challenges remain in interpreting the tumor-associated myeloid response balance and its translational value. We aimed to construct a simple and reliable myeloid signature for hepatocellular carcinoma (HCC).METHODSUsing in situ immunohistochemistry, we assessed the distribution of major myeloid subtypes in both peri- and intratumoral regions of HCC. A 2-feature-based, myeloid-specific prognostic signature, named the myeloid response score (MRS), was constructed using an L1-penalized Cox regression model based on data from a training subset (n = 244), a test subset (n = 244), and an independent internal (n = 341) and 2 external (n = 94; n = 254) cohorts.RESULTSThe MRS and the MRS-based nomograms displayed remarkable discriminatory power, accuracy, and clinical usefulness for predicting recurrence and patient survival, superior to current staging algorithms. Moreover, an increase in MRS was associated with a shift in the myeloid response balance from antitumor to protumor activities, accompanied by enhanced CD8+ T cell exhaustion patterns. Additionally, we provide evidence that the MRS was associated with the efficacy of sorafenib treatment for recurrent HCC.CONCLUSIONWe identified and validated a simple myeloid signature for HCC that showed remarkable prognostic potential and may serve as a basis for the stratification of HCC immune subtypes.FUNDINGThis work was supported by the National Science and Technology Major Project of China, the National Natural Science Foundation of China, the Science and Information Technology of Guangzhou, the Fundamental Research Funds for the Central Universities, the Guangdong Basic and Applied Basic Research Foundation, and the China Postdoctoral Science Foundation.
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Affiliation(s)
- Chong Wu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences.,Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, and
| | - Jie Lin
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences
| | - Yulan Weng
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences
| | - Dan-Ni Zeng
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences
| | - Jing Xu
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, and
| | - Shufeng Luo
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences
| | - Li Xu
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, and
| | - Mingyu Liu
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, and
| | - Qiaomin Hua
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences
| | - Chao-Qun Liu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Biliary-Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jin-Qing Li
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, and
| | - Jing Liao
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences
| | - Cheng Sun
- Department of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Jian Zhou
- Liver Cancer Institute, Zhongshan Hospital, and.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Ministry of Education, Fudan University, Shanghai, China
| | - Min-Shan Chen
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, and
| | - Chao Liu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Biliary-Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhenhong Guo
- National Key Laboratory of Medical Immunology and Institute of Immunology, Second Military Medical University, Shanghai, China
| | - Shi-Mei Zhuang
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences
| | - Jin-Hua Huang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, and
| | - Limin Zheng
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences.,Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, and
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14
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Huang WW, Ge XY, Huang Y, Chai XT, Zhang L, Zhang YX, Deng LN, Liu CQ, Xu H, Gao J. High-yield strain of fusidic acid obtained by atmospheric and room temperature plasma mutagenesis and the transcriptional changes involved in improving its production in fungus Fusidium coccineum. J Appl Microbiol 2020; 130:405-415. [PMID: 32734700 DOI: 10.1111/jam.14797] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 06/01/2020] [Accepted: 07/21/2020] [Indexed: 11/28/2022]
Abstract
AIMS To obtain the high-yield strain of fusidic acid, which is produced from fungus Fusidium coccineum and is the only fusidane-type antibiotic that has been used clinically, and confirm the changes in the transcription levels involved in increasing its production. METHODS AND RESULTS By using the atmospheric and room temperature plasma mutagenesis technology, a high-yield mutant strain of fusidic acid-producing fungus F. coccineum was obtained. Using the genomic analysis of the original strain based on biosynthetic pathways of ergosterol and helvolic acid, we demonstrate that the pathway involved in the biosynthesis of 2,3-oxidosqualene from acetyl coenzyme A was shared by fusidic acid and ergosterol, and fusidic acid was finally synthesized by the catalysis of multiple cytochrome P450s and short-chain dehydrogenase/reductase from 2,3-oxidosqualene. Then, through the transcriptomic analysis of the original and mutagenized strain, it revealed that the proposed pathway from sucrose to fusidic acid was the most significantly up-regulated in the transcription levels of the mutant strain. CONCLUSIONS The changes in the transcription levels of fusidic acid during its biosynthesis might result in high-yield of fusidic acid in the mutant strain. This is the first report on the whole biosynthetic pathway of fusidic acid in F. coccineum. SIGNIFICANCE AND IMPACT OF THE STUDY This study obtain the genetic basis for the biosynthesis of fusidic acid which could be beneficial for the molecular modifications of F. coccineum to further increase its yield by fermentation in future, and established the foundation to reveal the mechanism of the high-yield of the mutant strain.
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Affiliation(s)
- W W Huang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China.,School of Marine and Bioengineering, Yancheng Institute of Technology, Yancheng, China
| | - X Y Ge
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Y Huang
- Joyang Laboratories, Yancheng, China
| | - X T Chai
- Joyang Laboratories, Yancheng, China
| | - L Zhang
- School of Marine and Bioengineering, Yancheng Institute of Technology, Yancheng, China
| | - Y X Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - L N Deng
- School of Marine and Bioengineering, Yancheng Institute of Technology, Yancheng, China
| | - C Q Liu
- School of Marine and Bioengineering, Yancheng Institute of Technology, Yancheng, China
| | - H Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - J Gao
- School of Marine and Bioengineering, Yancheng Institute of Technology, Yancheng, China
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15
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Liu CQ, Pan YJ, Deng XL, Luo YY, Wei GY, Lao WT, Zhang GM, Luo CW, Tan XC, Guan YJ, Lei CL. [Epidemiology, clinical characteristics and treatment in 278 patients with coronavirus disease 2019 in Guangzhou]. Zhonghua Nei Ke Za Zhi 2020; 59:598-604. [PMID: 34865378 DOI: 10.3760/cma.j.cn112138-20200317-00250] [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: 06/13/2023]
Abstract
Objective: To retrospective analyze the epidemiology, clinical characteristics, treatment and prognosis in patients with coronavirus disease 2019 (COVID-19). Methods: A total of 278 patients with COVID-19 admitted to Guangzhou Eighth People's Hospital from January 20 to February 10, 2020 were selected. The general demographic data, epidemiological data, clinical symptoms, laboratory examinations, lung CT imaging, treatment and prognosis were analyzed. Results: There were 130 male patients (46.8%) and 148 females (53.2%) with age (48.1±17.0) years and 88.8% patients between 20-69 years. Two hundred and thirty-six (84.9%) patients had comorbidities. Two hundred and eleven cases (75.9%) were common type. The in-hospital mortality was 0.4% (1/278). The majority (201, 72.3%) were imported cases mainly from Wuhan (89, 44.3%). The most common clinical manifestations were fever (70.9%) and dry cough (61.5%). In some patients, hemoglobin (10.4%), platelets (12.6%) and albumin (55.4%) were lower than the normal range. Other biochemical tests according to liver and function were normal, while lactic dehydrogenase (LDH) was elevated in 61 patients (21.9%), creatine kinase increased in 26 patients (9.4%). Prolonged activated partial thromboplastin time (APTT) was seen in 52 patients (18.7%), D-dimer higher than normal in 140 patients (50.4%), while 117 patients (42.1%) had elevated high-sensitivity C-reactive protein. Typical CT manifestations included single or multiple ground glass shadows especially in lung periphery in early disease which infiltrated and enlarged during progressive stage. Diffuse consolidation with multiple patchy density in severe/critical cases and even "white lung" presented in a few patients. Two hundred and forty-two patients (87.1%) received one or more antiviral agents, 242 (87.1%) combined with antibacterials, 191 (68.7%) with oxygen therapy. There were 198 patients (71.2%) treated with traditional Chinese medicine. Conclusions: COVID-19 could attack patients in all ages with majority of common type and low mortality rate. Clinical manifestations involve multiple organs or systems. Progression of the disease results in critical status which should be paid much attention.
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Affiliation(s)
- C Q Liu
- Department of Emergency, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - Y J Pan
- Department of Emergency, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - X L Deng
- Department of Emergency, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - Y Y Luo
- Department of Emergency, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - G Y Wei
- Department of Emergency, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - W T Lao
- Department of Emergency, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - G M Zhang
- Department of Emergency, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - C W Luo
- Department of Emergency, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - X C Tan
- Department of Emergency, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - Y J Guan
- Department of Emergency, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - C L Lei
- Department of Infectious Diseases, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
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16
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Liu CQ, Zhu AF, Huang YG. Differential effects of anaesthesia on the contractility of lymphatic vessels in vivo. J Physiol 2020; 598:2035. [PMID: 32160312 DOI: 10.1113/jp279647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 02/17/2020] [Indexed: 11/08/2022] Open
Affiliation(s)
- Chao-Qun Liu
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - A-Fang Zhu
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yu-Guang Huang
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Li J, Yuan H, Li Y, Zhao XQ, Chen L, Han MK, Liu CQ, Liu Q, Wang HT, Zhong Q, Feng B. [Spectrum analysis of pathological classification in 463 cases with nasal and paranasal sinuses malignant tumors]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 33:1176-1180. [PMID: 31914269 DOI: 10.13201/j.issn.1001-1781.2019.12.015] [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] [Received: 07/04/2019] [Indexed: 11/12/2022]
Abstract
Objective:The characteristics of pathological histological classification of nasal and paranasal sinuses malignant tumors in the past 10 years were analyzed, so as to provide possible basis, direction and ideas for the development of relevant effective treatment measures for nasal and paranasal sinuses malignant tumors in clinical practice. Method:The clinical data of patients with nasal and paranasal sinuses malignant tumors admitted to PLA general hospital from January 2009 to December 2018 were collected. Pathological types were retrospectively analyzed, and disease spectrum distribution, composition ratio and variation tendency of these patients were calculated. Result:Among the 463 patients, the overall pathological types in the top 5 were as follows: squamous cell carcinoma, adenoid cystadenocarcinoma, olfactory neuroblastoma, melanoma, adenocarcinoma. As for male patients, the pathological types in the top 5 were squamous cell carcinoma, adenoid cystic carcinoma, olfactory neuroblastoma, adenocarcinoma, neuroendocrine carcinoma and rhabdomyosarcoma were tied for fifth; the top 5 most common pathological types in female patients were squamous cell carcinoma, adenoid cystic carcinoma, melanoma, rhabdomyosarcoma, and adenocarcinoma. From 2009 to 2013, there were 183 patients with nasal and paranasal sinuses malignant tumors, the top 5 pathological types were squamous cell carcinoma, adenoid cystadenocarcinoma, olfactory neuroblastoma, melanoma, neuroendocrine carcinoma and rhabdomyosarcoma were tied for fifth; From 2014 to 2018, 280 patients with nasal and paranasal sinuses malignant tumors were diagnosed, the top 5 pathological types were squamous cell carcinoma, adenoid cystadenocarcinoma, melanoma, adenocarcinoma, and rhabdomyosarcoma. The ratio of the number of patients from 2009 to 2013 and 2014 to 2018 was about 0.65∶1. Malignant tumors of the nasal and paranasal sinuses tend to occur between the ages of 41 and 60, and the pathological types in the top 5 were squamous cell carcinoma,adenoid cystic carcinoma, adenocarcinoma, melanoma, neuroendocrine carcinoma. Conclusion:Malignant tumors of nasal cavity and sinus were more common in male, and the pathological types such as squamous cell carcinoma, adenoid cystic carcinoma, olfactory neuroblastoma were more common. All age groups have the disease, but the age group of 41-60 years old is the high-risk group of nasal and nasal sinus malignant tumors. However, the incidence rate of melanoma has gradually increased in the past five years, which needs to be paid more attention to.
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Affiliation(s)
- J Li
- Department of Otorhinolaryngology Head and Neck Surgery,Hospital 301,PLA General Hospital,Beijing,100853,China.,Department of Otorhinolaryngology Head and Neck Surgery,the Second Affiliated Hospital of North Sichuan Medical College,Sichuan Mianyang 404 Hospital
| | - H Yuan
- Department of Otorhinolaryngology Head and Neck Surgery,Hospital 301,PLA General Hospital,Beijing,100853,China
| | - Y Li
- Department of Otorhinolaryngology Head and Neck Surgery,the Second Affiliated Hospital of North Sichuan Medical College,Sichuan Mianyang 404 Hospital
| | - X Q Zhao
- Department of Otorhinolaryngology Head and Neck Surgery,the Second Affiliated Hospital of North Sichuan Medical College,Sichuan Mianyang 404 Hospital
| | - L Chen
- Department of Otorhinolaryngology Head and Neck Surgery,Hospital 301,PLA General Hospital,Beijing,100853,China
| | - M K Han
- Department of Otorhinolaryngology Head and Neck Surgery,Hospital 301,PLA General Hospital,Beijing,100853,China
| | - C Q Liu
- Department of Otorhinolaryngology Head and Neck Surgery,Hospital 301,PLA General Hospital,Beijing,100853,China
| | - Q Liu
- Department of Otorhinolaryngology Head and Neck Surgery,Hospital 301,PLA General Hospital,Beijing,100853,China
| | - H T Wang
- Department of Otorhinolaryngology Head and Neck Surgery,Hospital 301,PLA General Hospital,Beijing,100853,China
| | - Q Zhong
- Department of Otorhinolaryngology Head and Neck Surgery,the Second Affiliated Hospital of North Sichuan Medical College,Sichuan Mianyang 404 Hospital
| | - B Feng
- Department of Otorhinolaryngology Head and Neck Surgery,Hospital 301,PLA General Hospital,Beijing,100853,China
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18
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Zhang FP, Huang YP, Luo WX, Deng WY, Liu CQ, Xu LB, Liu C. Construction of a risk score prognosis model based on hepatocellular carcinoma microenvironment. World J Gastroenterol 2020; 26:134-153. [PMID: 31969776 PMCID: PMC6962430 DOI: 10.3748/wjg.v26.i2.134] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/23/2019] [Accepted: 12/06/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a common cancer with a poor prognosis. Previous studies revealed that the tumor microenvironment (TME) plays an important role in HCC progression, recurrence, and metastasis, leading to poor prognosis. However, the effects of genes involved in TME on the prognosis of HCC patients remain unclear. Here, we investigated the HCC microenvironment to identify prognostic genes for HCC.
AIM To identify a robust gene signature associated with the HCC microenvironment to improve prognosis prediction of HCC.
METHODS We computed the immune/stromal scores of HCC patients obtained from The Cancer Genome Atlas based on the ESTIMATE algorithm. Additionally, a risk score model was established based on Differentially Expressed Genes (DEGs) between high‐ and low‐immune/stromal score patients.
RESULTS The risk score model consisting of eight genes was constructed and validated in the HCC patients. The patients were divided into high- or low-risk groups. The genes (Disabled homolog 2, Musculin, C-X-C motif chemokine ligand 8, Galectin 3, B-cell-activating transcription factor, Killer cell lectin like receptor B1, Endoglin and adenomatosis polyposis coli tumor suppressor) involved in our risk score model were considered to be potential immunotherapy targets, and they may provide better performance in combination. Functional enrichment analysis showed that the immune response and T cell receptor signaling pathway represented the major function and pathway, respectively, related to the immune-related genes in the DEGs between high- and low-risk groups. The receiver operating characteristic (ROC) curve analysis confirmed the good potency of the risk score prognostic model. Moreover, we validated the risk score model using the International Cancer Genome Consortium and the Gene Expression Omnibus database. A nomogram was established to predict the overall survival of HCC patients.
CONCLUSION The risk score model and the nomogram will benefit HCC patients through personalized immunotherapy.
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MESH Headings
- Aged
- Antineoplastic Agents, Immunological/pharmacology
- Antineoplastic Agents, Immunological/therapeutic use
- Biomarkers, Tumor/antagonists & inhibitors
- Biomarkers, Tumor/genetics
- Carcinoma, Hepatocellular/drug therapy
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/immunology
- Carcinoma, Hepatocellular/mortality
- Databases, Genetic/statistics & numerical data
- Datasets as Topic
- Female
- Gene Expression Profiling/methods
- Gene Expression Regulation, Neoplastic/immunology
- Humans
- Kaplan-Meier Estimate
- Liver/immunology
- Liver/pathology
- Liver Neoplasms/drug therapy
- Liver Neoplasms/genetics
- Liver Neoplasms/immunology
- Liver Neoplasms/mortality
- Male
- Middle Aged
- Models, Genetic
- Neoplasm Staging
- Nomograms
- Precision Medicine/methods
- ROC Curve
- Risk Assessment/methods
- Treatment Outcome
- Tumor Microenvironment/genetics
- Tumor Microenvironment/immunology
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Affiliation(s)
- Fa-Peng Zhang
- Department of Biliary Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
| | - Yi-Pei Huang
- Department of Biliary Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
| | - Wei-Xin Luo
- Department of Biliary Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
| | - Wan-Yu Deng
- Department of Biliary Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
- College of Life Science, Shangrao Normal University, Shangrao 334001, Jiangxi Province, China
| | - Chao-Qun Liu
- Department of Biliary Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
| | - Lei-Bo Xu
- Department of Biliary Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
| | - Chao Liu
- Department of Biliary Pancreatic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
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Xiao G, Jin LL, Liu CQ, Wang YC, Meng YM, Zhou ZG, Chen J, Yu XJ, Zhang YJ, Xu J, Zheng L. EZH2 negatively regulates PD-L1 expression in hepatocellular carcinoma. J Immunother Cancer 2019; 7:300. [PMID: 31727135 PMCID: PMC6854886 DOI: 10.1186/s40425-019-0784-9] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [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: 04/10/2019] [Accepted: 10/22/2019] [Indexed: 12/13/2022] Open
Abstract
Background Accumulating studies suggest that targeting epigenetic modifications could improve the efficacy of tumor immunotherapy; however, the mechanisms underlying this phenomenon remain largely unknown. Here, we investigated the ability of the epigenetic modifier, enhancer of zeste 2 polycomb repressive complex 2 subunit (EZH2), to regulate the expression of immune checkpoint inhibitor, programmed death-1 ligand 1 (PD-L1) in hepatocellular carcinoma (HCC). Methods Immunohistochemistry and multiplex immunofluorescence staining were performed to analyze the expression and correlation of EZH2 and PD-L1 in HCC tissues. Immunoblotting, quantitative real-time PCR, flow cytometry, chromatin immunoprecipitation, and dual-luciferase reporter gene assays were performed to evaluate the regulatory roles of EZH2 on PD-L1 expression. Results In vitro cell experiments revealed that EZH2 negatively regulated the PD-L1 expression of hepatoma cell lines in IFNγ-dependent manner. Mechanistic studies demonstrated that EZH2 could suppress PD-L1 expression by upregulating the H3K27me3 levels on the promoters of CD274 (encoding PD-L1) and interferon regulatory factor 1 (IRF1), an essential transcription factor for PD-L1 expression, without affecting the activation of the IFNγ-signal transducer and activator of transcription 1 (STAT1) pathway. Clinical samples from HCC patients with immune-activated microenvironments showed negative correlations between EZH2 and PD-L1 expression in hepatoma cells. Multivariate Cox analysis demonstrated that the combination of EZH2 and PD-L1 was an independent prognostic factor for both OS and RFS for patients with HCC. Conclusions The epigenetic modificator EZH2 can suppress the expression of immune checkpoint inhibitor PD-L1 by directly upregulating the promoter H3K27me3 levels of CD274 and IRF1 in hepatoma cells, and might serve as a potential therapeutic target for combination of immunotherapy for immune-activated HCC.
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Affiliation(s)
- Gang Xiao
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, People's Republic of China.,Department of Biliary-Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, People's Republic of China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, People's Republic of China
| | - Li-Lian Jin
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
| | - Chao-Qun Liu
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, People's Republic of China.,Department of Biliary-Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, People's Republic of China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, People's Republic of China
| | - Yong-Chun Wang
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, People's Republic of China
| | - Ya-Ming Meng
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, People's Republic of China.,MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
| | - Zhong-Guo Zhou
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, People's Republic of China
| | - Jing Chen
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, People's Republic of China
| | - Xing-Juan Yu
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, People's Republic of China
| | - Yao-Jun Zhang
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, People's Republic of China
| | - Jing Xu
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, People's Republic of China.
| | - Limin Zheng
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, 510060, People's Republic of China. .,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, People's Republic of China.
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Wu HR, Liu CQ, Guo MF, Xu MQ, Mei XY. [Analysis on CT in diagnosis of lymph node metastasis of thoracic esophageal cancer with minimum diameter greater than 1 cm]. Zhonghua Wai Ke Za Zhi 2019; 57:601-606. [PMID: 31422630 DOI: 10.3760/cma.j.issn.0529-5815.2019.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objectives: To evaluate the diagnostic value of CT for lymph node metastasis of thoracic esophageal carcinoma with a diameter of more than 1 cm, and to find the optimal diagnostic index by comparing relevant CT indexes. Methods: Totally 80 patients with pathologically proved thoracic esophageal cancer with preoperative CT examination revealed lymph node diameter greater than 1 cm admitted at Department of Thoracic Surgery, the First Affiliated Hospital of University of Science and Technology of China from January 2016 to January 2018 were enrolled in this study. There were 70 males and 10 females, aging of (60±14) years (range: 40-85 years). According to the pathological result of lymph nodes, all the patients and lymph nodes were divided into two groups (N+group: 47 patients, 62 lymph nodes; N-group: 33 patients, 39 lymph nodes). The average number of dissected lymph nodes were 21±4 and 101 lymph nodes' diameter were greater than 1 cm. The clinicopathologic factors, postoperative complications, lymph node dissection and relevant CT indexes like the minimum diameter of lymph nodes (Min D), the maximum diameter of lymph node (Max D), lymph node axial ratio(LAR), the enhancement of lymph node (ELN) and the boundary of lymph node (BLN) were compared. The clinicopathological data, lymph node dessection and CT parameters of the two groups were compared by t test, χ(2) test or Wilcoxon rank sum test. Receiver operating characteristic (ROC) curve analysis was used to compare the ability to predict lymph node metastasis between Min D, Max D, LAR, ELN and BLN. Multiple Logistic regression analysis were performed to determine the independent variables for prediction of lymph node metastasis. Results: The difference of tumor segmentation, pN stage, pTNM stage, total number of metastatic lymph nodes, total number of abdominal lymph node metastases, Min D, Max D, ELN and BLN between the two groups were statistically significant. The results of univariate and multivariate analyses showed that gender (OR=0.128, 95%CI: 0.019 to 0.858, P=0.034), pTNM stage (OR=1.514, 95%CI: 1.020 to 2.247, P=0.039), Min D (OR=0.102, 95%CI: 0.010 to 0.995, P=0.050) and LAR (OR=0.195, 95%CI: 0.052 to 0.731, P=0.015) were the independent relative factors. The area under the curve of ROC curve analysis of Min D, Max D, LAR, ELN and BLN were 0.679, 0.666, 0.561, 0.650 and 0.820, respectively. BLN was the best CT index to diagnosis lymph node metastasis, while the accuracy of dignosis of lymph node metastasis of BLN was 97.0%. The Youden index of Min D, Max D and LAR were 1.25 cm, 1.64 cm and 0.77, respectively. Combining the BLN and ELN had a higher diagnostic rate (97.0%) of lymph node metastasis. Conclusions: CT has high diagnostic value for lymph node metastasis in thoracic esophagel cancer when the lymph node diameter is greater than 1 cm. BLN is the best diagnostic index for lymph node metastasis.
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Affiliation(s)
- H R Wu
- Department of Thoracic Surgery, the First Affiliated Hospital of University of Science and Technology of China, Hefei 230001, China
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21
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Wu HR, Liu CQ, Guo MF, Mei XY, Tian JY, Xu MQ. [A comparative study of the short-term efficacy and long-term efficacy of systematic lymph node dissection and elective lymph node dissection in patients with early esophageal cancer]. Zhonghua Wai Ke Za Zhi 2018; 56:706-711. [PMID: 30157578 DOI: 10.3760/cma.j.issn.0529-5815.2018.09.012] [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: 11/05/2022]
Abstract
Objective: To investigate the feasibility, safety, short-term efficacy and long-term efficacy of elective lymph node dissection in patients with early esophageal cancer. Methods: The study retrospectively evaluated 405 patients with cT1N0M0 esophageal carcinoma who received minimally invasive esophagectomy in the First Affiliated Hospital of University of Science and Technology of China between March 2007 and March 2013. Of those patients, 208 patients underwent systematic lymph node dissection (SLND) and 197 patients underwent elective lymph node dissection (ELND). The clinicopathologic factors, operational factors, postoperative complications, lymph node dissection and prognosis of patients were compared by independent sample t test, χ(2) test, or Mann-Whitney rank test. The 5-year overall survival was calculated by the Kaplan-Meier estimation method using the Log-rank test. Results: There was no significant difference in clinicopathological data between the SLND group and the ELND group. The incidence of pulmonary infection (8.2% vs. 2.9%, P=0.04) and arrhythmia (6.2% vs. 2.0%, P=0.03) of the minor postoperative complications in the SLND group were higher than the ELND group. The incidence of pulmonary infection (6.2% vs. 2.0%, P=0.03), Chylothorax (5.8% vs.1.5%, P=0.02), anastomotic or pleural hemorrhage requiring reoperation (2.9% vs.0.5%, P=0.04) of major postoperative complications in the SLND group were higher than the ELND group, the difference was statistically significant. In the perioperative data of two groups, the incidence of total postoperative complications, total pulmonary complications, operation time, intraoperative blood loss, postoperative hospitalization, postoperative thoracic drainage duration and postoperative thoracic drainage fluid volume of the SLND group were higher than the ELND group, the difference was statistically significant. The mean numbers and stations of dissected lymph node in the SLND were 30.2±4.2 and 12.1±2.7, the mean numbers and stations of dissected lymph node in the ELND were 25.7±3.8 and 8.4±3.6. The survival rates of 1, 3, 5 years of all patients were 100%, 95.9% and 82.5%, respectively. The median survival time was 87.4 months. Further analysis showed that the 1, 3 and 5 years survival rate of patients with stage Ⅰ esophageal cancer was 100%, 97.1% and 88.9%, respectively. The median survival time was 89.3 months. The 1, 3 and 5 years survival rate of patients with stage Ⅱa esophageal cancer was 100%, 93.2% and 76.8%, respectively. The median survival time was 77.2 months. There was no significant difference in survival rate between the SLND group and the ELND group in 1, 3 and 5 years. When taking a further analysis of stage Ⅰ esophageal cancer, the survival rates between 188 patients in the SLND group and 180 patients in the ELND group were no significant difference. When focus on the stage Ⅱa esophageal cancer, the 1, 3 and 5 years survival rate were higher in the SLND group than that in the ELND group (100%, 94.5%, 83.2% vs. 100%, 91.3%, 72.1%, P=0.047), the difference was statistically significant. Conclusion: ELND can be safely and effectively performed for early esophageal cancer with favorable short-term efficacy and long-term efficacy.
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Affiliation(s)
- H R Wu
- Department of Thoracic Surgery, the First Affiliated Hospital of University of Science and Technology of China, Hefei 230001, China
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Liu CQ, Xu J, Zhou ZG, Jin LL, Yu XJ, Xiao G, Lin J, Zhuang SM, Zhang YJ, Zheng L. Expression patterns of programmed death ligand 1 correlate with different microenvironments and patient prognosis in hepatocellular carcinoma. Br J Cancer 2018; 119:80-88. [PMID: 29921949 PMCID: PMC6035200 DOI: 10.1038/s41416-018-0144-4] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 05/09/2018] [Accepted: 05/16/2018] [Indexed: 12/13/2022] Open
Abstract
Background Recent clinical studies have suggested that programmed death ligand 1 (PD-L1) expression in a tumour could be a potential biomarker for PD-L1/PD-1 blockade therapies. Methods To better characterise PD-L1 expression in hepatocellular carcinoma (HCC), we analysed its expression patterns in 453 HCC patients by double staining for CD68 and PD-L1 using the Tyramide Signal Amplification Systems combined with immunohistochemistry. We also investigated its correlation with clinical features, prognosis and immune status. Results The results showed that PD-L1 expression on tumour cells (TCs) was negatively associated with patients’ overall survival (OS; P = 0.001) and relapse-free survival (RFS; P = 0.006); however, PD-L1 expression on macrophages (Mφs) was positively correlated with OS (P = 0.017). Multivariate analysis revealed that PD-L1 expression on TCs and Mφs were both independent prognostic factors for OS (hazard ratio (HR) = 1.168, P = 0.004 for TC-PD-L1; HR = 0.708, P = 0.003 for Mφ-PD-L1). Further studies showed that Mφ-PD-L1+ tumours exhibited an activated immune microenvironment, with high levels of CD8+ T-cell infiltration and immune-related gene expression. Conclusion Our study provided a novel methodology to evaluate PD-L1 expression in the tumour microenvironment, which might help to select patients who would benefit from anti-PD-1/PD-L1 immunotherapies.
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Affiliation(s)
- Chao-Qun Liu
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China
| | - Jing Xu
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China
| | - Zhong-Guo Zhou
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, P. R. China
| | - Li-Lian Jin
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Xing-Juan Yu
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China
| | - Gang Xiao
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China
| | - Jie Lin
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Shi-Mei Zhuang
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Yao-Jun Zhang
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, 510060, Guangzhou, P. R. China.
| | - Limin Zheng
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P. R. China. .,Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, P. R. China.
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Wang YR, Xu X, Ma HM, Chen DM, Xiang L, Liu CQ, Hou QN, He YT, Xin C, Zhang YF, Pei XY. Effect of Metformin-Induced Stimulation on the Expression of Insulin Receptor Substrate 1 through Negative Regulation of P70S6k. Reprod Dev Med 2018. [DOI: 10.4103/2096-2924.232874] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Duan ZJ, Yao K, Zhou J, Li L, Zhai F, Liu CQ, Ma Z, Bian Y, Luan GM, Qi XL. [Neuropathologic findings in intractable epilepsy: a clinicopathologic analysis of 822 cases]. Zhonghua Bing Li Xue Za Zhi 2017; 46:673-678. [PMID: 29050067 DOI: 10.3760/cma.j.issn.0529-5807.2017.10.003] [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: 11/05/2022]
Abstract
Objective: To investigate the clinicopathologic characteristics of intractable epilepsy. Methods: Based on the classification criteria proposed by the International League Against Epilepsy (ILAE), a retrospective analysis of the pathological characteristics was done in 822 patients who underwent epilepsy surgery in Sanbo Brain Hospital, Capital Medical University, from June 2008 to December 2012. Results: The mean age of epilepsy onset was 9.9 years, mean duration of epilepsy was 11.9 years. Complex partial seizures were the main presenting features. Histopathological study showed 33 cases (4.01%) with mild forms of cortical malformations, 690 cases (83.94%) with focal cortical dysplasia (FCD) and 99 cases with others (including 39 pure hippocampal sclerosis, 20 cystosclerosis, 19 Sturge-Weber syndrome, 8 tuberous sclerosis complex, 6 without significant pathological changes, 5 gyral malformations and 2 hamartoma). Among the 690 FCD cases, 106 were FCD typeⅠ, 91 were FCD typeⅡ and 493 were FCDⅢ(Ⅲa: 160, Ⅲb: 106, Ⅲc: 26 and Ⅲd: 201). Conclusions: FCDⅢd is the most common histopathological subtype causing intractable epilepsy, mainly due to focal hypoxia/ischemia in the perinatal period, which results in scarring of local brain tissue; this is followed by other isolated forms of FCD (FCDⅠand FCDⅡ), and then FCD Ⅲa and FCD Ⅲb. The reason to distinguish isolated forms of FCD (types Ⅰ and Ⅱ) from FCD Ⅲ and to subclassify FCD Ⅲ is to allow better definition of cortical dyslamination. Therefore, the pathogenic factors of intractable epilepsy can be grouped in greater details, and facilitate the diagnosis and potential curative treatment of intractable epilepsy.
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Affiliation(s)
- Z J Duan
- Department of Pathology, Beijing Key Lab of Epilepsy Research, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
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Xu J, Liang J, Meng YM, Yan J, Yu XJ, Liu CQ, Xu L, Zhuang SM, Zheng L. Vascular CXCR4 Expression Promotes Vessel Sprouting and Sensitivity to Sorafenib Treatment in Hepatocellular Carcinoma. Clin Cancer Res 2017; 23:4482-4492. [DOI: 10.1158/1078-0432.ccr-16-2131] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 09/14/2016] [Accepted: 02/16/2017] [Indexed: 11/16/2022]
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26
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Li JQ, Yu XJ, Wang YC, Huang LY, Liu CQ, Zheng L, Fang YJ, Xu J. Distinct patterns and prognostic values of tumor-infiltrating macrophages in hepatocellular carcinoma and gastric cancer. J Transl Med 2017; 15:37. [PMID: 28202073 PMCID: PMC5312581 DOI: 10.1186/s12967-017-1139-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 02/03/2017] [Indexed: 12/21/2022] Open
Abstract
Background Macrophages (Mφs) constitute a major component of the leukocyte infiltrate and perform distinct roles in different tumor microenvironments. This study aimed to characterize the distribution, composition and prognostic value of Mφs in hepatocellular carcinoma (HCC) and gastric cancer (GC). Methods Immunohistochemistry and immunofluorescence were used to identify Mφ subsets in HCC and GC tissues. Kaplan–Meier analysis and Cox regression models were applied to estimate the overall survival (OS) for HCC and GC patients. Results The results showed that the density of Mφs decreased in the intra-tumor region (IT) of HCC, but remarkably increased in the IT of GC, as compared with their non-tumor regions (NT). In HCC, most CD68+ Mφs were CD204+ and CD169+ cells in the NT region; however, there was a significant decrease in the percentage of CD169+ Mφ in the IT region. In contrast, CD68+ Mφs comprised a smaller percentage of CD204+ than the CD169+ subpopulation in the NT region, while more CD204+ but fewer CD169+ cells were present in the IT region of GC. The density of CD204+ Mφs correlated with poor prognosis in HCC, and CD169+ Mφs were associated with good survival in both HCC and GC. Moreover, the combination of low numbers of CD204+ and high numbers of CD169+ Mφs was associated with improved OS in both GC and HCC. Conclusions Mφs display tissue-specific distributions and distinct composition patterns in HCC and GC tissues. Our results suggested that different types of tumors might use diverse strategies to reconstitute Mφ patterns to promote tumor progression. Electronic supplementary material The online version of this article (doi:10.1186/s12967-017-1139-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jin-Qing Li
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Xing-Juan Yu
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Yong-Chun Wang
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Li-Yun Huang
- Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Chao-Qun Liu
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Limin Zheng
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China.,School of Life Sciences, Sun Yat-sen University, Guangzhou, 510060, People's Republic of China
| | - Yu-Jing Fang
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China.
| | - Jing Xu
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China.
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Kong XM, Zhang J, Liu CQ. [Current progress and prospect in effects of PM 2.5 on metabolic syndrome]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:632-636. [PMID: 27682678 DOI: 10.3760/cma.j.issn.1001-9391.2016.08.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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28
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Liu CQ, Xie MR, Guo MF, Sun XH, Wu HR, Sun XX, Xu MQ. [Short-term outcomes of minimally invasive Sweet esophagectomy for Siewert type Ⅱ esophagogastric junction adenocarcinoma]. Zhonghua Wai Ke Za Zhi 2016; 54:461-465. [PMID: 27938582 DOI: 10.3760/cma.j.issn.0529-5815.2016.06.014] [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 describe the technique for minimally invasive Sweet esophagectomy and to evaluate the feasibility, safety and the short-term clinical outcomes of this approach in the treatment of Siewert type Ⅱ esophagogastric junction adenocarcinoma. Methods: The clinical data of 122 patients with Siewert type Ⅱ esophagogastric junction adenocarcinoma who received Sweet esophagectomy between October 2013 and June 2015 in Department of Thoracic Surgery, Anhui Provincial Hospital Affiliated with Anhui Medical University was analyzed retrospectively. The study group consisted of 87 men and 35 women, and the ages ranged from 48 to 78 years (median: 67 years). Of those 122 patients, 47 underwent minimally invasive approach and 75 underwent open left transthoracic sweet esophagectomy. This study included 16 stage Ⅰa patients, 35 stage Ⅰb patients, 32 stage Ⅱa patients, 28 stage Ⅱb patients, and 11 stage Ⅲa patients. The clinicopathologic factors, operational factors and postoperative complications of the two groups were compared by t test and χ2 test. Results: The two groups were similar in terms of gender, age, American Society of Anesthesiologists grade, preoperative staging and incidence of comorbidities (P>0.05). The minimally invasive approach was associated with significant increase in the number of total lymph nodes dissected or the stations of the total lymph nodes dissected (18.1±2.7 vs. 15.0±2.5, t= 6.612, P=0.001; 8.9±1.1 vs. 6.7±1.2, t=9.960, P=0.003), significant decrease in surgical blood loss ((88±32) ml vs. (120±34) ml, t=5.052, P=0.001), chest tube duration ((8±4) d vs. (10±4) d, t=3.110, P=0.002) and postoperative stay ((9±5) d vs. (12±4) d, t=3.167, P=0.002) relative to the open approach. The postoperative in-hospital mortality and total morbidity did not differ between the two groups (P>0.05). The minimally invasive approach was associated with significantly fewer respiratory complications than the open approach (8.5% vs. 22.7%, χ2=4.063, P=0.044). Conclusion: Minimally invasive technique for Siewert type Ⅱ esophagogastric junction adenocarcinoma can be safely and effectively performed for intrathoracic anastomosis with favorable early outcomes.
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Affiliation(s)
- C Q Liu
- Department of Thoracic Surgery, Anhui Provincial Hospital Affiliated with Anhui Medical University, Hefei 230001, China
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Li L, Xu L, Yan J, Zhen ZJ, Ji Y, Liu CQ, Lau WY, Zheng L, Xu J. CXCR2-CXCL1 axis is correlated with neutrophil infiltration and predicts a poor prognosis in hepatocellular carcinoma. J Exp Clin Cancer Res 2015; 34:129. [PMID: 26503598 PMCID: PMC4621872 DOI: 10.1186/s13046-015-0247-1] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 10/19/2015] [Indexed: 12/30/2022]
Abstract
Background & aims Inflammation is a hallmark of cancer, yet the mechanisms that regulate immune cell infiltration into tumors remain poorly characterized. This study attempted to characterize the composition, distribution, and prognostic value of CXCR2+ cells in hepatocellular carcinoma (HCC) and to examine the CXCR2 ligands that are responsible for local immune infiltration in different areas of HCC tumors. Methods Immunohistochemistry and immunofluorescene were used to identify CXCR2+ cells in HCC tissues. Kaplan–Meier analysis and Cox regression models were applied to estimate recurrence-free survival (RFS) and overall survival (OS) for 259 HCC patients. The expression levels of CXCR2 ligands (CXCL-1, −2, −5, and −8) were measured by real-time PCR and compared with local immune cell density. The combined prognostic value of the CXCR2–CXCL1 axis was further evaluated. Results In HCC tissues, CXCR2+ cells were mainly neutrophils that were enriched in the peri-tumoral stroma (PS) region. Kaplan–Meier survival analysis showed that increased CXCR2+PS cells were associated with reduced RFS and OS (P = 0.015 for RFS; P = 0.002 for OS). Multivariate Cox proportional hazards analysis identified CXCR2+PS cell density as an independent prognostic factor for OS (hazard ratio [HR] = 1.737, 95 % confidence interval [CI] = 1.167–2.585, P = 0.006). Furthermore, we detected a positive correlation between the density of CD15+ neutrophils and CXCL1 levels in both the peri-tumoral stroma and intra-tumoral regions. The combination of CXCR2 and CXCL1 expression levels represented a powerful predictor of a poor prognosis for patients with HCC. Conclusions Our data showed that the CXCR2+ cell density was an independent prognostic factor for predicting OS for HCC patients. The CXCR2–CXCL1 axis can regulate neutrophil infiltration into HCC tumor tissues and might represent a useful target for anti-HCC therapies. Electronic supplementary material The online version of this article (doi:10.1186/s13046-015-0247-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Li Li
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China.,Department of Hepatic & Pancreatic Surgery, The First People's Hospital of Foshan, Foshan, Guangdong, P. R. China
| | - Li Xu
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Jing Yan
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China.,Department of Medicine, Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, One Jimmy Fund Way, Boston, MA, 02115, USA
| | - Zuo-Jun Zhen
- Department of Hepatic & Pancreatic Surgery, The First People's Hospital of Foshan, Foshan, Guangdong, P. R. China
| | - Yong Ji
- Department of Hepatic & Pancreatic Surgery, The First People's Hospital of Foshan, Foshan, Guangdong, P. R. China
| | - Chao-Qun Liu
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Wan Yee Lau
- Department of Hepatic & Pancreatic Surgery, The First People's Hospital of Foshan, Foshan, Guangdong, P. R. China.,Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P. R. China
| | - Limin Zheng
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China.
| | - Jing Xu
- Department of Hepatic & Pancreatic Surgery, The First People's Hospital of Foshan, Foshan, Guangdong, P. R. China.
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Sun C, Xu J, Song J, Liu C, Wang J, Weng C, Sun H, Wei H, Xiao W, Sun R, Tian Z. The predictive value of centre tumour CD8+ T cells in patients with hepatocellular carcinoma: comparison with Immunoscore. Oncotarget 2015; 6:35602-15. [PMID: 26415232 PMCID: PMC4742128 DOI: 10.18632/oncotarget.5801] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [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: 06/30/2015] [Accepted: 09/12/2015] [Indexed: 12/21/2022] Open
Abstract
The increasing evidences suggest that Immunoscore(IS), a combinatorial density analysis of CD8+ and CD3+ cells in the centre and invasive margin of tumour (CT and IM), has an advantage over the currently used tumour staging methods in a variety of tumours; however, IS in hepatocellular carcinoma remains unreported. In this study, IS was performed on serial sections from two HCC cohorts (total 449) and compared with current tumour staging systems. Kaplan–Meier curves illustrate a positive association between a higher IS (IS≥2) and longer survival of HCC patients. Although the IS was highly related to the outcome of patients, however, IS seems not to be the optimal prognostic factor when compared with the CD8CT. As noted, among CD8CT, CD8IM, CD3CT, CD3IM and IS, CD8CT, as an independent indicator, demonstrated the highest prognostic impact on both DFS and OS in our Cox multivariate regression analysis (P< 0.0001). In our study, the minimum cut-off value was 93 CD8CT cells per mm2, to be used to divide the patients into CD8CTHi group and CD8CTLo group in clinical settings. Our results suggest that CD8CT densities analysis notably improved the accuracy of survival prediction with convenience of clinical manipulation in HCC.
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Affiliation(s)
- Cheng Sun
- Institute of Immunology and The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jing Xu
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Jiaxi Song
- Institute of Immunology and The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, China
| | - ChaoQun Liu
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Jinyu Wang
- Institute of Immunology and The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, China
| | - Chenchun Weng
- Institute of Immunology and The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, China
| | - Haoyu Sun
- Institute of Immunology and The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, China
| | - Haiming Wei
- Institute of Immunology and The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, China
| | - Weihua Xiao
- Institute of Immunology and The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, China
| | - Rui Sun
- Institute of Immunology and The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhigang Tian
- Institute of Immunology and The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
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Xie MR, Xu SB, Sun XH, Ke L, Mei XY, Liu CQ, Ma DC. Role of surgery in the management and prognosis of limited-stage small cell carcinoma of the esophagus. Dis Esophagus 2015; 28:476-82. [PMID: 24787553 DOI: 10.1111/dote.12230] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Small cell carcinoma of the esophagus (SCCE) is a rare, highly aggressive tumor characterized by early dissemination and a poor prognosis. Surgery, chemotherapy, and radiotherapy have been used alone or in combination for the treatment of this rare disease. The aim of this retrospective study was to analyze the role of surgery in the management of limited-stage SCCE at a high-volume center. We retrospectively evaluated 73 patients with limited-stage SCCE who received an esophagectomy at our center from January 1994 to December 2011. The clinical characteristics, median survival times (MSTs), overall survival (OS), and relevant prognostic factors were analyzed. The overall MST was 23.0 months, and the 1-, 2-, 3-, and 5-year OS rates were 61.6%, 47.9%, 22.7%, and 10.6%, respectively. The MST for patients without lymph node involvement (33.0 months) was greater than the MST for patients with lymph node involvement (17.0 months) (P = 0.014). Similarly, patients who underwent radical resection had a greater MST (25.0 months) than patients who underwent palliative resection (7.0 months) (P = 0.004). Patients who received chemotherapy had a greater MST (27.0 months) than patients who did not receive chemotherapy (13.0 months) (P = 0.021). Survival analysis confirmed that a radical operation, chemotherapy, and lymph node involvement were independent prognostic factors. This study suggests that radical resection combined with chemotherapy should be recommended for patients with limited-stage SCCE, especially patients with negative regional lymph nodes. A lack of lymph node metastasis was a good prognostic factor because patients without lymph node involvement had greater OS.
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Affiliation(s)
- M R Xie
- Department of Thoracic Surgery, Anhui Provincial Hospital affiliated, Anhui Medical University, Hefei, Anhui, China
| | - S B Xu
- Department of Thoracic Surgery, Anhui Provincial Hospital affiliated, Anhui Medical University, Hefei, Anhui, China
| | - X H Sun
- Department of Thoracic Surgery, Anhui Provincial Hospital affiliated, Anhui Medical University, Hefei, Anhui, China
| | - L Ke
- Department of Thoracic Surgery, Anhui Provincial Hospital affiliated, Anhui Medical University, Hefei, Anhui, China
| | - X Y Mei
- Department of Thoracic Surgery, Anhui Provincial Hospital affiliated, Anhui Medical University, Hefei, Anhui, China
| | - C Q Liu
- Department of Thoracic Surgery, Anhui Provincial Hospital affiliated, Anhui Medical University, Hefei, Anhui, China
| | - D C Ma
- Department of Thoracic Surgery, Anhui Provincial Hospital affiliated, Anhui Medical University, Hefei, Anhui, China
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Li L, Yan J, Xu J, Liu CQ, Zhen ZJ, Chen HW, Ji Y, Wu ZP, Hu JY, Zheng L, Lau WY. CXCL17 expression predicts poor prognosis and correlates with adverse immune infiltration in hepatocellular carcinoma. PLoS One 2014; 9:e110064. [PMID: 25303284 PMCID: PMC4193880 DOI: 10.1371/journal.pone.0110064] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [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] [Received: 05/15/2014] [Accepted: 08/29/2014] [Indexed: 12/18/2022] Open
Abstract
CXC ligand 17 (CXCL17) is a novel CXC chemokine whose clinical significance remains largely unknown. In the present study, we characterized the prognostic value of CXCL17 in patients with hepatocellular carcinoma (HCC) and evaluated the association of CXCL17 with immune infiltration. We examined CXCL17 expression in 227 HCC tissue specimens by immunohistochemical staining, and correlated CXCL17 expression patterns with clinicopathological features, prognosis, and immune infiltrate density (CD4 T cells, CD8 T cells, B cells, natural killer cells, neutrophils, macrophages). Kaplan-Meier survival analysis showed that both increased intratumoral CXCL17 (P = 0.015 for overall survival [OS], P = 0.003 for recurrence-free survival [RFS]) and peritumoral CXCL17 (P = 0.002 for OS, P<0.001 for RFS) were associated with shorter OS and RFS. Patients in the CXCL17low group had significantly lower 5-year recurrence rate compared with patients in the CXCL17high group (peritumoral: 53.1% vs. 77.7%, P<0.001, intratumoral: 58.6% vs. 73.0%, P = 0.001, respectively). Multivariate Cox proportional hazards analysis identified peritumoral CXCL17 as an independent prognostic factor for both OS (hazard ratio [HR] = 2.066, 95% confidence interval [CI] = 1.296–3.292, P = 0.002) and RFS (HR = 1.844, 95% CI = 1.218–2.793, P = 0.004). Moreover, CXCL17 expression was associated with more CD68 and less CD4 cell infiltration (both P<0.05). The combination of CXCL17 density and immune infiltration could be used to further classify patients into subsets with different prognosis for RFS. Our results provide the first evidence that tumor-infiltrating CXCL17+ cell density is an independent prognostic factor that predicts both OS and RFS in HCC. CXCL17 production correlated with adverse immune infiltration and might be an important target for anti-HCC therapies.
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Affiliation(s)
- Li Li
- Department of Hepatic and Pancreatic Surgery, The First People's Hospital of Foshan, Foshan, Guangdong, P. R. China; State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Jing Yan
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Jing Xu
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Chao-Qun Liu
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Zuo-Jun Zhen
- Department of Hepatic and Pancreatic Surgery, The First People's Hospital of Foshan, Foshan, Guangdong, P. R. China
| | - Huan-Wei Chen
- Department of Hepatic and Pancreatic Surgery, The First People's Hospital of Foshan, Foshan, Guangdong, P. R. China
| | - Yong Ji
- Department of Hepatic and Pancreatic Surgery, The First People's Hospital of Foshan, Foshan, Guangdong, P. R. China
| | - Zhi-Peng Wu
- Department of Hepatic and Pancreatic Surgery, The First People's Hospital of Foshan, Foshan, Guangdong, P. R. China
| | - Jian-Yuan Hu
- Department of Hepatic and Pancreatic Surgery, The First People's Hospital of Foshan, Foshan, Guangdong, P. R. China
| | - Limin Zheng
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Wan Yee Lau
- Department of Hepatic and Pancreatic Surgery, The First People's Hospital of Foshan, Foshan, Guangdong, P. R. China; Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, P. R. China
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Liao YP, Zhang D, Zhou W, Meng FM, Bao MS, Xiang P, Liu CQ. Combined folate gene MTHFD and TC polymorphisms as maternal risk factors for Down syndrome in China. Genet Mol Res 2014; 13:1764-73. [PMID: 24668664 DOI: 10.4238/2014.march.17.4] [Citation(s) in RCA: 10] [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: 11/03/2022]
Abstract
We examined whether polymorphisms in the methylenetetrahydrofolate dehydrogenase (MTHFD) and transcobalamin (TC) genes, which are involved in folate metabolism, affect maternal risk for Down syndrome. We investigated 76 Down syndrome mothers and 115 control mothers from Bengbu, China. Genomic DNA was isolated from the peripheral lymphocytes. Polymerase chain reaction and restriction fragment length polymorphism were used to examine the polymorphisms of MTHFD G1958A and TC C776G. The frequencies of the polymorphic alleles were 24.3 and 19.1% for MTHFD 1958A, 53.9 and 54.2% for TC 776G, in the case and control groups, respectively. No significant differences were found between two groups in relation to either the allele or the genotype frequency for both polymorphisms. However, when gene-gene interactions between these two polymorphisms together with previous studied C677T and A1298C polymorphisms in the methylenetetrahydrofolate reductase (MTHFR) gene were analyzed, the combined MTHFR 677CT/TT and MTHFD 1958AA/GA genotype was found to be significantly associated with the risk of having a Down syndrome child [odds ratio (OR) = 3.11; 95% confidence interval (95%CI) = 1.07-9.02]. In addition, the combined TC 776CG and MTHFR 677TT genotype increased the risk of having a child with Down syndrome 3.64-fold (OR = 3.64; 95%CI = 1.28-10.31). In conclusion, neither MTHFD G1958A nor TC C776G polymorphisms are an independent risk factor for Down syndrome. However, the combined MTHFD/MTHFR, TC/MTHFR genotypes play a role in the risk of bearing a Down syndrome child in the Chinese population.
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Affiliation(s)
- Y P Liao
- Department of Cell Biology, Bengbu Medical College, Bengbu, China
| | - D Zhang
- Department of Cell Biology, Bengbu Medical College, Bengbu, China
| | - W Zhou
- Department of Cell Biology, Bengbu Medical College, Bengbu, China
| | - F M Meng
- Department of Cell Biology, Bengbu Medical College, Bengbu, China
| | - M S Bao
- Department of Cell Biology, Bengbu Medical College, Bengbu, China
| | - P Xiang
- The Central Laboratory, First Affiliated Hospital, Bengbu Medical College, Bengbu, China
| | - C Q Liu
- Department of Cell Biology, Bengbu Medical College, Bengbu, China
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Liu WP, Liu CQ, Xiao M, Qu SQ, Hu XH, Wang ZY, He S, Luan Z. Treatment of newborns with severe injured brain with transplantation of human neural precursor cells. Klin Padiatr 2012. [DOI: 10.1055/s-0032-1330780] [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: 10/27/2022]
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Kang XS, Liu CQ, Zhang B, Bi XJ, Zhang F, Cheng LH. Application of reversed A2/O process on removing nitrogen and phosphorus from municipal wastewater in China. Water Sci Technol 2011; 63:2138-2142. [PMID: 21977631 DOI: 10.2166/wst.2011.340] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The application of reversed A2/O process in practice in China is mainly discussed in this paper. As a new process on nitrogen and phosphorus removal, principle and technical features of reversed A2/O process are also summarized. The application in rebuilt wastewater treatment plant shows that reversed A2/O process not only has merits on high nitrogen and phosphorus removal efficiency, but also has merits on energy saving. The application in newly-build wastewater treatment plant shows that infrastructure and equipment investment of reversed A2/O process economized 15% and 10% respectively, compared to conventional A2/O process. The practical application shows that reversed A2/O process is a new nitrogen and phosphorus removal process, which is suitable for China's national conditions.
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Affiliation(s)
- X S Kang
- School of Environmental Science and Engineering, Shandong University, Jinan 250100, China.
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Ramasamy S, Liu CQ, Tran H, Gubala A, Gauci P, McAllister J, Vo T. Principles of antidote pharmacology: an update on prophylaxis, post-exposure treatment recommendations and research initiatives for biological agents. Br J Pharmacol 2010; 161:721-48. [PMID: 20860656 DOI: 10.1111/j.1476-5381.2010.00939.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The use of biological agents has generally been confined to military-led conflicts. However, there has been an increase in non-state-based terrorism, including the use of asymmetric warfare, such as biological agents in the past few decades. Thus, it is becoming increasingly important to consider strategies for preventing and preparing for attacks by insurgents, such as the development of pre- and post-exposure medical countermeasures. There are a wide range of prophylactics and treatments being investigated to combat the effects of biological agents. These include antibiotics (for both conventional and unconventional use), antibodies, anti-virals, immunomodulators, nucleic acids (analogues, antisense, ribozymes and DNAzymes), bacteriophage therapy and micro-encapsulation. While vaccines are commercially available for the prevention of anthrax, cholera, plague, Q fever and smallpox, there are no licensed vaccines available for use in the case of botulinum toxins, viral encephalitis, melioidosis or ricin. Antibiotics are still recommended as the mainstay treatment following exposure to anthrax, plague, Q fever and melioidosis. Anti-toxin therapy and anti-virals may be used in the case of botulinum toxins or smallpox respectively. However, supportive care is the only, or mainstay, post-exposure treatment for cholera, viral encephalitis and ricin - a recommendation that has not changed in decades. Indeed, with the difficulty that antibiotic resistance poses, the development and further evaluation of techniques and atypical pharmaceuticals are fundamental to the development of prophylaxis and post-exposure treatment options. The aim of this review is to present an update on prophylaxis and post-exposure treatment recommendations and research initiatives for biological agents in the open literature from 2007 to 2009.
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Affiliation(s)
- S Ramasamy
- Defence Science & Technology Organisation, Human Protection and Performance Division, Fishermans Bend, Vic., Australia.
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Guan WJ, Liu CQ, Li CY, Liu D, Zhang WX, Ma YH. Establishment and cryopreservation of a fibroblast cell line derived from Bengal tiger (Panthera tigris tigris). Cryo Letters 2010; 31:130-138. [PMID: 20687455] [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: 05/29/2023]
Abstract
The Bengal tiger ear marginal tissue fibroblasts cell line (BTF22), containing 157 tubes of frozen cells, was successfully established by using primary explants technique and cell cryoconservation technology. Biological analysis showed that the population doubling time (PDT) for revival cells was approximately 28 h. Measurement of LDH and MDH isoenzymes showed no cross-contamination among the cells. Karyotyping showed that the frequency of cells with chromosome number 2n = 38 was 90.6-92.2%. Tests for bacteria, fungi, viruses and mycoplasma were negative. Plasmids encoding the fluorescent proteins pEGFP-N3, pEGFP-C1, pECFP-N1, pECFP-mito, pDsRed1-N1, and pEYFP-N1 were transfected into cells to study exogenous gene expression in the cells. The plasmid transfection efficiency was between 4.4% and 31.9%. Every index of the BTF22 cell line meets all the standard quality controls of American type Culture Collection (ATCC). Not only has the germline of this important Bengal tiger species been preserved at the cell level, but also valuable material had been provided for genome, postgenome and somacloning research. Moreover, the establishment of this technical platform would provide both technical and theoretical support for storing the genetic resources of other animals and poultry at the cell level.
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Affiliation(s)
- W J Guan
- Institute of Beijing Animal Science and Veterinary, CAAS, Beijing, 100094, China.
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Shi K, Liu CQ, Huang ZW, Zhang B, Su Y. Comparative analysis of time-scaling properties about water pH in Poyang Lake Inlet and Outlet on the basis of fractal methods. Water Sci Technol 2010; 61:2113-2118. [PMID: 20389010 DOI: 10.2166/wst.2010.135] [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] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Detrended fluctuation analysis (DFA) and multifractal methods are applied to the time-scaling properties analysis of water pH series in Poyang Lake Inlet and Outlet in China. The results show that these pH series are characterised by long-term memory and multifractal scaling, and these characteristics have obvious differences between the Lake Inlet and Outlet. The comparison results suggest that monofractal and multifractal parameters can be quantitative dynamical indexes reflecting the capability of anti-acidification of Poyang Lake. Furthermore, we investigated the frequency-size distribution of pH series in Poyang Lake Inlet and Outlet. Our findings suggest that water pH is an example of a self-organised criticality (SOC) process. The results show that it is different SOC behaviours that result in the differences of power-law relations between pH series in Poyang Lake Inlet and Outlet. This work can be helpful to improvement of modelling of lake water quality.
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Affiliation(s)
- K Shi
- College of Biology and Environmental Sciences, Jishou University, Jishou Hunan 416000, China.
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Jin B, Sun T, Yu XH, Liu CQ, Yang YX, Lu P, Fu SF, Qiu HB, Yeo AET. Immunomodulatory effects of dsRNA and its potential as vaccine adjuvant. J Biomed Biotechnol 2010; 2010:690438. [PMID: 20671921 PMCID: PMC2910503 DOI: 10.1155/2010/690438] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2009] [Accepted: 05/09/2010] [Indexed: 02/07/2023] Open
Abstract
dsRNA can be detected by pattern recognition receptors, for example, TLR3, MDA-5, NLRP3 to induce proinflammatory cytokines responsible for innate/adaptive immunity. Recognized by endosomal TLR3 in myeloid DCs (mDCs), dsRNA can activate mDCs into mature antigen presenting cells (mAPCs) which in turn present antigen epitopes with MHC-I molecules to naïve T cells. Coadministration of protein and synthetic dsRNA analogues can elicit an antigen-specific Th1-polarized immune response which stimulates the CD8+ CTL response and possibly dampen Th17 response. Synthetic dsRNA analogues have been tested as vaccine adjuvant against viral infections in animal models. However, a dsRNA receptor, TLR3 can be expressed in tumor cells while other members of TLR family, for example, TLR4 and TLR2 have been shown to promote tumor progression, metastasis, and chemoresistance. Thus, the promising potential of dsRNA analogues as a tumor therapeutic vaccine adjuvant should be evaluated cautiously.
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Affiliation(s)
- Bo Jin
- Department of Digestive Diseases, Naval General Hospital, 6 Fucheng Rd., Beijing 100048, China.
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40
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Abstract
On the basis of omega-scan x-ray diffraction (XRD), quantitative and qualitative characterization methods for fiber texture are proposed. The physical meaning of omega-scan curve is discussed in detail, and it is shown that the relative intensity curve of omega-scan XRD for a certain crystal plane is proportional to the pole density of the plane. Then qualitative and quantitative characterization methods for fiber texture are proposed from the concept of pole density. The proposed methods can be used in any crystal system. As an example for experimental verification, an orientation distribution function (ODF) experiment and a series of omega-scan XRD experiments are performed on a sputtered platinum film. From the comparison between the result of the ODF experiment and that of the analyses on the omega-scan XRD experiments, it is proved that the proposed qualitative and quantitative methods are effective and simple.
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Affiliation(s)
- W D Fei
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China.
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Tiskumara R, Fakharee SH, Liu CQ, Nuntnarumit P, Lui KM, Hammoud M, Lee JKF, Chow CB, Shenoi A, Halliday R, Isaacs D. Neonatal infections in Asia. Arch Dis Child Fetal Neonatal Ed 2009; 94:F144-8. [PMID: 18805822 DOI: 10.1136/adc.2008.139865] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [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: 11/03/2022]
Abstract
OBJECTIVE To study the epidemiology (including incidence, antibiotic sensitivity and mortality) of neonatal unit infections in countries in Asia. METHODS One year prospective study of neonatal infections in eight neonatal units in Asia. RESULTS There were 453 episodes of sepsis affecting 394 babies. Mortality from neonatal sepsis was 10.4%, with an incidence of 0.69 deaths/1000 live births. Group B streptococcus was the most common early-onset organism causing 38% of episodes of early-onset (<48 h old) sepsis, with a rate of 0.51 episodes per 1000 live births and a mortality of 22%. Gram-negative bacillary early-onset sepsis occurred at a rate of 0.15 episodes per 1000 live births with a mortality of 12%. There were 406 episodes of late-onset sepsis. The incidence was high at 11.6 per 1000 live births, and mortality was 8.9%. Coagulase-negative staphylococcus caused 34.1% of episodes, whereas Staphylococcus aureus caused only 5.4%. Gram-negative bacilli caused 189 episodes (46.6%). Only 44% of Gram-negative bacilli were sensitive to both gentamicin and a third-generation cephalosporin, whereas 30% were resistant to both antibiotics. Meningitis occurred in 17.2% of episodes of late sepsis, with a mortality of 20%. CONCLUSIONS The incidence of late-onset sepsis was higher in Asia than in resource-rich countries, but the organisms isolated and mortality were similar. Over half of all Gram-negative bacilli were antibiotic resistant.
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Affiliation(s)
- R Tiskumara
- Department of Infectious Diseases, Children's Hospital at Westmead, Westmead, NSW 2145, Australia
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Wu YF, Liu CQ, Tu CL. Atmospheric Deposition of Metals in TSP of Guiyang, PR China. Bull Environ Contam Toxicol 2008; 80:465-468. [PMID: 18465071 DOI: 10.1007/s00128-008-9397-6] [Citation(s) in RCA: 9] [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] [Received: 07/14/2007] [Accepted: 03/14/2008] [Indexed: 05/26/2023]
Abstract
Total concentrations and speciation of metals had been studied in TSP of Guiyang from April 2006 and January 2007, PR China. The average concentration ranged from 14.48 ng m(-3) for Cd to 1,161.45 ng m(-3) for Zn. The concentrations of Cd, Cr, Pb and Zn were significantly higher during winter than those at other seasons. The environmentally mobile fractions of Cd and Zn were the highest in the three stages. The highest proportion of Pb was the fraction that bound to carbonate and oxide. Cr and Cu were clearly restricted to the fraction that bound to silicate and organic matter.
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Affiliation(s)
- Y F Wu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 46 Guanshui Road, Guiyang, Guizhou Province 550002, People's Republic of China.
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Liu CQ, Chen QH, Tang B, Ruan H, He GQ. Response surface methodology for optimizing the fermentation medium of alpha-galactosidase in solid-state fermentation. Lett Appl Microbiol 2007; 45:206-12. [PMID: 17651220 DOI: 10.1111/j.1472-765x.2007.02173.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [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: 12/01/2022]
Abstract
AIMS Alpha-galactosidase is applied in food and feed industries for hydrolysing raffinose series oligosaccharides (RO) that are the factors primarily responsible for flatulence upon ingestion of soybean-derived products. The objective of the current work was to develop an optimal culture medium for the production of alpha-galactosidase in solid-state fermentation (SSF) by a mutant strain Aspergillus foetidus. METHODS AND RESULTS Response surface methodology (RSM) was applied to evaluate the effects of variables, namely the concentrations of wheat bran, soybean meal, KH(2)PO(4), MnSO(4).H(2)O and CuSO(4).5H(2)O on alpha-galactosidase production in the solid substrate. A fractional factorial design (FFD) was firstly used to isolate the main factors that affected the production of alpha-galactosidase and the central composite experimental design (CCD) was then adopted to derive a statistical model for optimizing the composition of the fermentation medium. The experimental results showed that the optimum fermentation medium for alpha-galactosidase production by Aspergillus foetidus ZU-G1 was composed of 8.2137 g wheat bran, 1.7843 g soybean meal, 0.001 g MnSO(4).H(2)O and 0.001 g CuSO(4).5H(2)O in 10 g dry matter fermentation medium. CONCLUSIONS After incubating 96 h in the optimum fermentation medium, alpha-galactosidase activity was predicted to be 2210.76 U g(-1) dry matter in 250 ml shake flask. In the present study, alpha-galactosidase activity reached 2207.19 U g(-1) dry matter. SIGNIFICANCE AND IMPACT OF THE STUDY Optimization of the solid substrate was a very important measure to increase enzyme activity and realize industrial production of alpha-galactosidase. The process of alpha-galactosidase production in laboratory scale may have the potential to scale-up.
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Affiliation(s)
- C Q Liu
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310029, China
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Wang B, Liu CQ, Wu Y. Effect of heavy metals on the activity of external carbonic anhydrase of microalga Chlamydomonas reinhardtii and microalgae from karst lakes. Bull Environ Contam Toxicol 2005; 74:227-233. [PMID: 15841961 DOI: 10.1007/s00128-004-0574-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Affiliation(s)
- B Wang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy Of Sciences, 46 GuanShui Road, Guiyang, Guizhou Province 550002, People's Republic of China
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45
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Wang XF, Yu MK, Lam SY, Leung KM, Jiang JL, Leung PS, Ko WH, Leung PY, Chew SBC, Liu CQ, Tse CM, Chan HC. Expression, immunolocalization, and functional activity of Na+/H+ exchanger isoforms in mouse endometrial epithelium. Biol Reprod 2003; 68:302-8. [PMID: 12493726 DOI: 10.1095/biolreprod.102.005645] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
The luminal fluid microenvironment of the uterus is important for sperm capacitation and embryo development. In an attempt to understand the possible role of Na(+)/H(+) exchangers (NHEs) in uterine function, the mRNAs of different NHE isoforms as well as their subcellular localization (apical versus basolateral) and functional activity were investigated in mouse endometrial epithelial cells using reverse transcriptase-polymerase chain reaction (RT-PCR), immunohistochemistry, and intracellular pH (pH(i)) measurement techniques. The presence of NHE1, NHE2, and NHE4, but not NHE3 mRNAs were revealed by RT-PCR. Immunostaining showed that NHE1, NHE2, and NHE4 were present in both apical and basolateral membranes. The pH(i) recovery from intracellular acidification was Na(+)-dependent; however, the rate of pH(i) recovery depending on basolateral Na(+) was 12.4 times faster than that depending on apical Na(+). The Na(+)-dependent rate of pH(i) recovery was also inhibited by amiloride, indicating H(+) extrusion through NHEs; however, the amiloride sensitivity of the apical membrane was less than that of the basolateral membrane, suggesting the involvement of different types of NHEs in the two membranes. The results indicate that the basolaterally located NHE1, NHE2, and NHE4, in addition to participating in the homeostatic control of intracellular pH, may play a role in H(+) extrusion in order to achieve transepithelial HCO(3)(-) secretion. The apically located NHEs may be involved in mediating Na(+) absorption as alternatives of or complementary to epithelial Na(+) channels.
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Affiliation(s)
- X F Wang
- Department of Physiology, The Chinese University of Hong Kong, Shatin, China
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46
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Wang XF, Yu MK, Leung KM, Yip CY, Ko WH, Liu CQ, Chan HC. Involvement of Na+-HCO3- cotransporter in mediating cyclic adenosine 3',5'-monophosphate-dependent HCO3- secretion by mouse endometrial epithelium. Biol Reprod 2002; 66:1846-52. [PMID: 12021071 DOI: 10.1095/biolreprod66.6.1846] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
The present study investigated the involvement of Na+-HCO3- cotransporter in mediating cAMP-stimulated HCO3- secretion across the cultured mouse endometrial epithelium using the short-circuit current (I(SC)) technique and intracellular pH measurement. Forskolin stimulated a rise in the I(SC), 55.6% and 52.1% of which could be reduced by the removal of extracellular Cl- or by eliminating the contribution of Cl- secretion by bumetanide, an inhibitor of Na+-K+-2Cl- cotransporter, respectively. More than 80% reduction in the forskolin-induced I(SC) was obtained when both Cl- and HCO3- in the bath were removed or in HCO3--free solution with bumetanide, indicating that the I(SC) depended on both Cl- and HCO3-. The presence of the Na+ channel-blocker amiloride in the apical solution did not reduce the forskolin-induced I(SC); however, the I(SC) could be abolished by removing Na+ from the bathing solution, suggesting that the Cl-- and HCO3--dependent I(SC) was also dependent on basolateral Na+. The forskolin-stimulated I(SC) could be reduced 43.6% by removal of HCO3- and 47.9% by a Na+-HCO3--cotransporter inhibitor, dihydrogen-4,4'-didsothiocyanostilbene-2,2'-disulfonic acid (H2DIDS). The inhibitory effect of H2DIDS was observed in Cl--free solution, but not when HCO3- was removed, thus confirming its effect on HCO3--dependent transport. Intracellular pH measurements demonstrated that the recovery from cellular acidification depended on the presence of both basolateral Na+ and HCO3-, further indicating the involvement of Na+-HCO3- cotransporter. Reverse transcription-polymerase chain reaction experiments confirmed the expression of Na+-HCO3- cotransporter in the mouse endometrium. The results suggest that basolaterally located Na+-HCO3- cotransporter is involved in mediating cAMP-stimulated HCO3- secretion across the mouse endometrial epithelium.
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Affiliation(s)
- X F Wang
- Epithelial Cell Biology Research Center, Faculty of Medicine, Chinese University of Hong Kong, Shatin, Hong Kong
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Chan LN, Wang XF, Tsang LL, So SC, Chung YW, Liu CQ, Chan HC. Inhibition of amiloride-sensitive Na(+) absorption by activation of CFTR in mouse endometrial epithelium. Pflugers Arch 2002; 443 Suppl 1:S132-6. [PMID: 11845319 DOI: 10.1007/s004240100660] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [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: 11/27/2022]
Abstract
Previous studies have demonstrated amiloride-sensitive Na(+) absorption under basal conditions and cystic fibrosis transmembrane conductance regulator (CFTR)-mediated Cl(-) secretion following neurohormonal stimulation in the mouse endometrial epithelium. The present study investigated the inhibition of amiloride-sensitive Na(+) absorption accompanying activation of CFTR in the mouse endometrium using the short-circuit current ( I(sc)) technique. RT-PCR demonstrated the co-expression of CFTR and epithelial Na(+) channels (ENaC) in primary cultured mouse endometrial epithelia and cultured endometrial monolayers exhibited a basal amiloride-sensitive I(sc) of 5.4 +/- 0.6 microA/cm(2). The amiloride-sensitive current fell to 3.1 +/- 0.5 microA/cm(2) after stimulation with forskolin. When the possible contribution of Na(+) absorption to the I(sc) was eliminated by amiloride (1 microM) or Na(+) replacement, the forskolin-induced I(sc) was not reduced, but rather increased significantly compared with that in the absence of amiloride or in Na(+)-containing solutions ( P < 0.02), indicating that the forskolin-induced I(sc) was mediated by Cl(-) secretion, portion of which may be masked by concurrent inhibition of basal Na(+) absorption if the contribution of Na(+) is not eliminated. When the contribution of Cl(-) to the I(sc) was eliminated by diphenylamine 2,2'-dicarboxylic acid (DPC, 2 mM) or Cl(-) replacement, forskolin now decreased, rather than increased the I(sc), demonstrating the inhibition of Na(+) absorption upon stimulation. Our data suggest an interaction between CFTR and ENaC, which may be the underlying mechanism for balancing Na(+) absorption and Cl(-) secretion across the mouse endometrial epithelium.
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Affiliation(s)
- L N Chan
- Epithelial Cell Biology Research Centre, Department of Physiology, The Chinese University of Hong Kong, Shatin, Hong Kong
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48
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Chan LN, Tsang LL, Rowlands DK, Rochelle LG, Boucher RC, Liu CQ, Chan HC. Distribution and regulation of ENaC subunit and CFTR mRNA expression in murine female reproductive tract. J Membr Biol 2002; 185:165-76. [PMID: 11891575 DOI: 10.1007/s00232-001-0117-y] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.6] [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: 04/12/2001] [Indexed: 11/26/2022]
Abstract
The present study investigated the regional distribution and cyclic changes in the mRNA expression of epithelial Na+ channel (ENaC) subunit and cystic fibrosis transmembrane conductance regulator (CFTR), a cAMP-activated Cl- channel, in adult female mouse reproductive tract. In situ hybridization revealed that in contrast to the abundant expression of CFTR, ENaC (alpha, beta, gamma) mRNA signal was not detected throughout the estrus cycle in the ovary and oviduct. Messenger RNA for all ENaC subunits was abundantly detected in the cervical and vaginal epithelia throughout the estrus cycle but for CFTR, mRNA was found only at proestrus. In the uterine epithelium, alphaENaC mRNA was detected at diestrus but not found at any other stage, while CFTR mRNA was only detected at early estrus but not other stages. Semi-quantitative RT-PCR detected mRNA for all ENaC subunits in the uterus throughout the cycle with maximal expression at diestrus and CFTR mRNA was only found in the early stages of the cycle. The involvement of ENaC and CFTR in Na+ absorption and Cl- secretion was demonstrated in cultured endometrial epithelia using the short-circuit current technique and found to be influenced by ovarian hormones. Taken together, these data indicate a main secretory role of the ovary and oviduct and a predominantly absorptive role of the cervix and vagina. The present results also suggest an ability of the uterus to secrete and absorb at different stages of the estrus cycle. Variations in the fluid profiles may be dictated by the regional and cyclic variations in expression of ENaC and CFTR and are likely to contribute to various reproductive events in different regions of the female reproductive tract.
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Affiliation(s)
- L N Chan
- Epithelial Cell Biology Research Center, Department of Physiology, Faculty of Medicine, Chinese University of Hong Kong, Shatin, NT, Hong Kong, SAR
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Abstract
The effects of hormones on production of leukaemia inhibitory factor (LIF) and the uterine receptivity in rabbits were studied. In ovariectomised rabbits, LIF protein was not detected in control but upregulated by progesterone alone. Oestrogen had a slightly negative effect when the rabbits were treated with both oestrogen and progesterone. Mifepristone (Mi) inhibited the progesterone-stimulated production of LIF in rabbit uterus. The transfer of embryos to LIF-treated recipients significantly increased pregnancy rate (70%) and implantation rate (27%) as compared with control (pregnancy rate=40% and implantation rate=17%). The transfer of embryos to LIF and mifepristone-treated recipients significantly decreased pregnancy rate (30%) and implantation rate (9%). The results indicated that LIF protein had a beneficial effect on uterine receptivity and mifepristone prevented this effect.
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Affiliation(s)
- C Q Liu
- Shanghai Institute of Planned Parenthood Research, Shanghai, P. R. China
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50
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Rowlands DK, Tsang LL, Cui YG, Chung YW, Chan LN, Liu CQ, James T, Chan HC. Upregulation of cystic fibrosis transmembrane conductance regulator expression by oestrogen and Bak Foong Pill in mouse uteri. Cell Biol Int 2002; 25:1033-5. [PMID: 11589624 DOI: 10.1006/cbir.2001.0746] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [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
Although cystic fibrosis transmembrane conductance regulator (CFTR) has been shown to be expressed in the female reproductive tract, its functional role in the uterus is not fully understood. The present study investigated a possible physiological role of CFTR by comparing the effects of 17beta-oestradiol and Bak Foong Pill (BFP), an over-the-counter Chinese medicine used for centuries for the treatment of various gynaecological disorders, on uterus size and the expression of CFTR in the uterus of ovariectomised mice using RT-PCR. Treatment of ovariectomised mice with 17beta-oestradiol (0.2 mg/kg, p.o.) for 12 days caused a significant increase in uterine wet weight compared to vehicle. However, treatment with BFP (3 g/kg, p.o.) for the same period failed to increase uterine wet weight, indicating a lack of direct oestrogen-like activity of BFP. Analysis of CFTR mRNA expression in the harvested uteri using RT-PCR showed that both 17beta-oestradiol and BFP induced an increase in CFTR mRNA expression in mouse uteri compared to levels observed in vehicle-treated animals. These results suggest that CFTR can be upregulated by oestrogen and BFP, however, the effect exerted by BFP does not seem to be mediated by direct oestrogen-like activity. Regulation of CFTR expression by both oestrogen and gynaecological medication BFP indicates an important role of CFTR in reproductive functions.
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Affiliation(s)
- D K Rowlands
- Epithelial Cell Biology Research Center, Department of Physiology, Chinese University of Hong Kong, Shatin, Hong Kong
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