1
|
Zhang MR, Fang LL, Guo Y, Wang Q, Li YJ, Sun HF, Xie SY, Liang Y. Advancements in Stimulus-Responsive Co-Delivery Nanocarriers for Enhanced Cancer Immunotherapy. Int J Nanomedicine 2024; 19:3387-3404. [PMID: 38617801 PMCID: PMC11012697 DOI: 10.2147/ijn.s454004] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/14/2024] [Indexed: 04/16/2024] Open
Abstract
Cancer immunotherapy has emerged as a novel therapeutic approach against tumors, with immune checkpoint inhibitors (ICIs) making significant clinical practice. The traditional ICIs, PD-1 and PD-L1, augment the cytotoxic function of T cells through the inhibition of tumor immune evasion pathways, ultimately leading to the initiation of an antitumor immune response. However, the clinical implementation of ICIs encounters obstacles stemming from the existence of an immunosuppressive tumor microenvironment and inadequate infiltration of CD8+T cells. Considerable attention has been directed towards advancing immunogenic cell death (ICD) as a potential solution to counteract tumor cell infiltration and the immunosuppressive tumor microenvironment. This approach holds promise in transforming "cold" tumors into "hot" tumors that exhibit responsiveness to antitumor. By combining ICD with ICIs, a synergistic immune response against tumors can be achieved. However, the combination of ICD inducers and PD-1/PD-L1 inhibitors is hindered by issues such as poor targeting and uncontrolled drug release. An advantageous solution presented by stimulus-responsive nanocarrier is integrating the physicochemical properties of ICD inducers and PD-1/PD-L1 inhibitors, facilitating precise delivery to specific tissues for optimal combination therapy. Moreover, these nanocarriers leverage the distinct features of the tumor microenvironment to accomplish controlled drug release and regulate the kinetics of drug delivery. This article aims to investigate the advancement of stimulus-responsive co-delivery nanocarriers utilizing ICD and PD-1/PD-L1 inhibitors. Special focus is dedicated to exploring the advantages and recent advancements of this system in enabling the combination of ICIs and ICD inducers. The molecular mechanisms of ICD and ICIs are concisely summarized. In conclusion, we examine the potential research prospects and challenges that could greatly enhance immunotherapeutic approaches for cancer treatment.
Collapse
Affiliation(s)
- Meng-Ru Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Binzhou Medical University, YanTai, ShanDong, 264003, People’s Republic of China
- Department of Clinical Medicine, Binzhou Medical University, YanTai, ShanDong, 264003, People’s Republic of China
| | - Lin-Lin Fang
- RemeGen Co., Ltd, YanTai, ShanDong, 264000, People’s Republic of China
| | - Yang Guo
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Binzhou Medical University, YanTai, ShanDong, 264003, People’s Republic of China
| | - Qin Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Binzhou Medical University, YanTai, ShanDong, 264003, People’s Republic of China
| | - You-Jie Li
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Binzhou Medical University, YanTai, ShanDong, 264003, People’s Republic of China
| | - Hong-Fang Sun
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Binzhou Medical University, YanTai, ShanDong, 264003, People’s Republic of China
| | - Shu-Yang Xie
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Binzhou Medical University, YanTai, ShanDong, 264003, People’s Republic of China
| | - Yan Liang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Binzhou Medical University, YanTai, ShanDong, 264003, People’s Republic of China
| |
Collapse
|
2
|
Fang LL, Liu YJ, Wang ZH, Lu XY, Li JH, Yang CX. Electrical Conductivity and pH Are Two of the Main Factors Influencing the Composition of Arbuscular Mycorrhizal Fungal Communities in the Vegetation Succession Series of Songnen Saline-Alkali Grassland. J Fungi (Basel) 2023; 9:870. [PMID: 37754978 PMCID: PMC10532779 DOI: 10.3390/jof9090870] [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: 06/25/2023] [Revised: 07/31/2023] [Accepted: 08/16/2023] [Indexed: 09/28/2023] Open
Abstract
Arbuscular mycorrhizal fungi (AMF) are widely distributed microorganisms in the soil, playing an important role in vegetation succession, plant community diversity, and improving soil physicochemical properties. In this study, morphological identification and high-throughput sequencing technology were used to comprehensively analyze the AMF community composition and diversity at different succession stages of Songnen saline-alkali grassland. To determine the root colonization status of plants collected in the field, a colonization system was established using late-succession plants as host plants to verify the existence of mycorrhizal symbiosis and the matching phenomenon of AMF in Songnen saline-alkali grassland. The results indicated that both morphological methods and high-throughput sequencing technology showed that glomus was the dominant genus of AMF in Songnen saline grassland. Redundancy analysis (RDA) and linear regression analysis showed that electrical conductivity (EC) and pH were the main environmental factors affecting AMF species diversity and community structure in the succession sequence of Songnen saline grassland. In addition, the results of root colonization identification and the colonization system test in the field showed that AMF successfully colonized vegetation at different succession stages and had mycorrhizal symbiosis. The results of this study could help to understand the AMF community of Songnen saline-alkali grassland as well as provide a reference and basis for optimizing the AMF community structure of Songnen saline-alkali grassland through human intervention in the future and using mycorrhizal technology to restore and rebuild the degraded ecosystem of Songnen saline-alkali grassland.
Collapse
Affiliation(s)
| | | | | | | | | | - Chun-Xue Yang
- College of Landscape Architecture, Northeast Forestry University, Harbin 150040, China; (L.-L.F.); (Y.-J.L.); (Z.-H.W.); (X.-Y.L.); (J.-H.L.)
| |
Collapse
|
3
|
Fan ZX, Wang CB, Fang LL, Cai B, Yuan P, Niu TT, Ma L, Yuan GB, Liu GZ. [Clinical features, risk factors and prognosis of idiopathic dilated cardiomyopathy complicated by ischemic stroke]. Zhonghua Yi Xue Za Zhi 2022; 102:3592-3597. [PMID: 36480862 DOI: 10.3760/cma.j.cn112137-20220427-00949] [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: 12/13/2022]
Abstract
Objective: To analyze the clinical features, risk factors and prognosis of idiopathic dilated cardiomyopathy (DCM) complicated with ischemic stroke (IS) (DCM-IS). Methods: The clinical data of patients with idiopathic DCM (n=613) in Beijing Anzhen Hospital, Liangxiang Hospital and Fuxing Hospital from January 2016 to December 2020 were retrospectively collected, and among them, 123 cases were DCM-IS. Clinical features of patients with DCM-IS were summarized and multivariate logistic regression model was utilized to analyze the independent risk factors of DCM-IS. Furthermore, 1-year follow-up was conducted and Kaplan-Meier curve was adopted to analyze the prognosis of DCM, using all-cause death and heart transplantation as adverse outcomes. Results: Among the 70 patients with DCM-IS, 6 patients (8.6%, 6/70) were in accordance with the subtype of large artery atherosclerosis, and 47 patients (67.1%, 47/70) were in line with the subtype of cardiogenic embolism, and small artery occlusion subtype (ie, lacunar infarction) were detected in 17 cases (24.3%, 17/70). Hypertension [odds ratio (OR)=1.617, 95% confidence interval (CI): 1.049-2.491, P=0.029], hyperlipidemia (OR=1.918, 95%CI: 1.198-3.073, P=0.007), atrial fibrillation (AF) (OR=1.617, 95%CI: 1.016-2.572, P=0.043), lower estimated glomerular filtration rate (eGFR) (OR=0.986, 95%CI: 0.977-0.996, P=0.005) and a higher incidence of intracardiac thrombus (OR=6.127, 95%CI: 3.174-11.827, P<0.001) were risk factors for DCM-IS. The overall 1-year survival rate was lower in DCM-IS patients (70.7%) than DCM patients without stroke (83.6%, P=0.004), and the main causes of death included obstinate heart failure (3 cases of DCM-IS, and 5 cases of non-DCM-IS) and malignant arrhythmia (DCM-IS) (22 cases of DCM-IS, and 18 cases of non-DCM-IS). Conclusions: Among IS patients with idiopathic DCM, cardioembolism is the most common, followed by lacunar infarction, and the large-artery atherosclerotic subtype is the least common.Hypertension, hyperlipidemia, AF, lower eGFR value and higher incidence of intracardiac thrombus are risk factors for DCM-IS. DCM patients complicated with IS have poor short-term prognosis, and obstinate heart failure and malignant arrhythmia are their main causes of death.
Collapse
Affiliation(s)
- Z X Fan
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - C B Wang
- Department of Neurology, Liangxiang Hospital, Fangshan District, Beijing, Beijing 102400, China
| | - L L Fang
- Department of Neurology, Fuxing Hospital, Capital Medical University, Beijing 100045, China
| | - B Cai
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - P Yuan
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - T T Niu
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - L Ma
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - G B Yuan
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - G Z Liu
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| |
Collapse
|
4
|
Pan P, Zheng LY, Fang LL, Chen XL, Huang J, Zhang QX, Yang DZ, Xie MQ, Li Y. [Clinical characteristics of 21 infertile women with non-classic 21-hydroxylase deficiency]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:108-113. [PMID: 33631882 DOI: 10.3760/cma.j.cn112141-20200526-00447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical features of infertile women with non-classic 21-hydroxylase deficiency (21-OHD). Methods: The study enrolled 21 infertile women with non-classic 21-OHD in Sun Yat-sen Memorial Hospital of Sun Yat-sen University from January 2009 to December 2018. The clinical presentation, endocrine hormone, glucolipid metabolism and treatment outcome were retrospectively analyzed. The diagnosis of non-classic 21-OHD was comprehensively based on clinical and hormonal characteristics. Results: Among 21 cases, the age was (29.9±2.9) years, the mean age at menarche was (13.6±2.0) years, body mass index was (22.1±2.9) kg/m2, and 38% (8/21) had oligomenorrhea. Hirsutism was diagnosed in 3 cases (14%, 3/21). Clitoromegaly was seen in 14% (3/21) and polycystic ovarian morphology was found in 33% (7/21) of the patients. The mean serum level of basal progesterone was (11.3±21.0) nmol/L, with 48% (10/21) having high basal progesterone level; after therapy by glucocorticoid, the level of progesterone was (1.9±2.0) nmol/L. Serum 17-hydroxyprogesterone concentration was (66.4±123.6) nmol/L; after therapy by glucocorticoid, it was (2.4±1.8) nmol/L. In the study increased testosterone, androstenedione and dehydroepiandrosterone sulfate were present in 62% (13/21), 52% (11/21) and 43% (9/21), respectively; and 52% (11/21) of patients manifested androgen excess and basal progesterone elevation; androgen levels decreased after therapy by glucocorticoid. The pregnancy rate was 76% (16/21). Out of 19 pregnancies, 6/19 ended in spontaneous miscarriages. Conclusions: Infertile women with non-classic 21-OHD are characterized by hyperandrogenism and basal progesterone elevation, whereas gonad axis disorder is not apparent. After no response to conventional therapy, adult infertile women with non-classic 21-OHD could achieve a desirable pregnancy outcome with proper treatment of glucocorticoid.
Collapse
Affiliation(s)
- P Pan
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - L Y Zheng
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - L L Fang
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - X L Chen
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - J Huang
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - Q X Zhang
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - D Z Yang
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - M Q Xie
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - Y Li
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| |
Collapse
|
5
|
Xia X, Xu J, Wang X, Wang H, Lin Z, Shao K, Fang L, Zhang C, Zhao Y. Jiaogulan tea (Gpostemma pentaphyllum) potentiates the antidiabetic effect of white tea via the AMPK and PI3K pathways in C57BL/6 mice. Food Funct 2020; 11:4339-4355. [DOI: 10.1039/d0fo00395f] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The use of plant-based beverages to interfere with the onset of diabetes may be a promising approach towards type 2 diabetes mellitus (T2DM).
Collapse
Affiliation(s)
- Xiaoyan Xia
- School of Functional Food and Wine
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Jing Xu
- School of Functional Food and Wine
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Xude Wang
- School of Functional Food and Wine
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Hua Wang
- School of Functional Food and Wine
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | | | | | - LinLin Fang
- College of Pharmacy
- Dalian Medical University
- Dalian
- China
| | | | - Yuqing Zhao
- School of Functional Food and Wine
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education
| |
Collapse
|
6
|
Wang XW, Wang M, Zhan J, Liu QY, Fang LL, Zhao CY, Jiang P, Li YF, Bai J. Pathogenicity and immunogenicity of a new strain of porcine epidemic diarrhea virus containing a novel deletion in the N gene. Vet Microbiol 2019; 240:108511. [PMID: 31902508 PMCID: PMC7173345 DOI: 10.1016/j.vetmic.2019.108511] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 06/25/2019] [Revised: 11/13/2019] [Accepted: 11/14/2019] [Indexed: 10/25/2022]
Abstract
Since late 2010, highly virulent PEDV G2-genotype strains have emerged globally extracting heavy losses on the pork industries of numerous countries. We investigated the characteristics of a field strain of PEDV (PEDV strain SH) isolated from a piglet with severe diarrhea on a farm in Shanghai China. Whole genome sequencing and analysis revealed that the SH strain belonged to subtype G2b and has a unique 12-aa deletion (aa 399-410) including the antigenic epitope NEP-1C9 (aa 398-406) of the N protein. PEDV SH strain is highly pathogenic to challenged newborn piglets, resulting in 100 % morbidity and mortality. Pathological examination revealed significant villus atrophy in the jejuna of infected piglets. Mice inoculated with inactivated PEDV SH produced antibodies against the N protein, but no antibodies against the deletions. These results illustrated that deletion of the NEP-1C9 epitope had no effect on the immunogenicity or pathogenicity of PEDV, providing evidence of the necessity to monitor the genetic diversity of the virus. Our study also contributes to development of candidate for vaccines and diagnostics that could differentiate pigs seropositive due to vaccination by conventional strains from wild virus infection.
Collapse
Affiliation(s)
- Xian-Wei Wang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Coinnovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China.
| | - Mi Wang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Jing Zhan
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Qian-Yu Liu
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Lin-Lin Fang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Chen-Yao Zhao
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Ping Jiang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Coinnovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Yu-Feng Li
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Coinnovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Juan Bai
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Coinnovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| |
Collapse
|
7
|
Zhao TY, Zhang DD, Qu TY, Fang LL, Zhu QB, Sun Y, Cai TH, Chen ML, Wang BW, Du JH, Ren WC, Yan X, Li QW, Qiu S, Sun DM. Flexible 64 × 64 Pixel AMOLED Displays Driven by Uniform Carbon Nanotube Thin-Film Transistors. ACS Appl Mater Interfaces 2019; 11:11699-11705. [PMID: 30839190 DOI: 10.1021/acsami.8b17909] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Carbon nanotube (CNT) thin-film transistors are expected to be promising for use in flexible electronics including flexible and transparent integrated circuits and in wearable chemical and physical sensors and for driving the circuits of flexible display panels. However, current devices based on CNT channels suffer from poor performance uniformity and low manufacturing yield; therefore, they are still far from being practical. This is usually caused by nonuniform deposition of the semiconducting CNTs and the rough surface of flexible substrates. Here, we report CNT thin-film transistors (TFTs) driving a flexible 64 × 64 pixel active matrix light-emitting diode display (AMOLED) by improving the formation of uniform CNT films and developing a new pretreatment technique for flexible substrates. The achieved AMOLED has uniform brightness and a high yield of 99.93% in its 4096 pixels. More than 8000 TFTs with high-purity semiconducting CNTs as the channel material show an average on-off current ratio of ∼107 and a carrier mobility of 16 cm2 V-1 s-1. The standard deviations of the on-state current and the carrier mobility are 4.1 and 6.5%, respectively. Our result shows that the panel driven by high-purity semiconducting CNTs is a promising strategy for the development of next-generation flexible, large-area displays.
Collapse
Affiliation(s)
- Tian-Yang Zhao
- College of Information Science and Engineering , Northeastern University , 3-11 Wenhua Road , Shenyang 110819 , China
| | - Ding-Dong Zhang
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
- School of Material Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
| | - Ting-Yu Qu
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
| | - Lin-Lin Fang
- Wuhan China Star Optoelectronics Technology Co., Ltd. , 8 Zuoling Road , Wuhan 430078 , China
| | - Qian-Bing Zhu
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
- School of Material Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
| | - Yun Sun
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
| | - Tian-Hong Cai
- College of Information Science and Engineering , Northeastern University , 3-11 Wenhua Road , Shenyang 110819 , China
| | - Mao-Lin Chen
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
- School of Material Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
| | - Bing-Wei Wang
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
- School of Material Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
| | - Jin-Hong Du
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
- School of Material Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
| | - Wen-Cai Ren
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
- School of Material Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
| | - Xin Yan
- College of Information Science and Engineering , Northeastern University , 3-11 Wenhua Road , Shenyang 110819 , China
| | - Qing-Wen Li
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , 398 Ruoshui Road , Suzhou 215123 , China
| | - Song Qiu
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , 398 Ruoshui Road , Suzhou 215123 , China
| | - Dong-Ming Sun
- College of Information Science and Engineering , Northeastern University , 3-11 Wenhua Road , Shenyang 110819 , China
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
- School of Material Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
| |
Collapse
|
8
|
Lan YL, Zhou JJ, Liu J, Huo XK, Wang YL, Liang JH, Zhao JC, Sun CP, Yu ZL, Fang LL, Tian XG, Feng L, Ning J, Zhang BJ, Wang C, Zhao XY, Ma XC. Uncaria rhynchophylla Ameliorates Parkinson's Disease by Inhibiting HSP90 Expression: Insights from Quantitative Proteomics. Cell Physiol Biochem 2018; 47:1453-1464. [PMID: 29940559 DOI: 10.1159/000490837] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 04/26/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Uncaria rhynchophylla, known as "Gou-teng", is a traditional Chinese medicine (TCM) used to extinguish wind, clear heat, arrest convulsions, and pacify the liver. Although U. rhynchophylla has a long history of being often used to treat central nervous system (CNS) diseases, its efficacy and potential mechanism are still uncertain. This study investigated neuroprotective effect and the underlying mechanism of U. rhynchophylla extract (URE) in MPP+-induced SH-SY5Y cells and MPTP-induced mice. METHODS MPP+-induced SH-SY5Y cells and MPTP-induced mice were used to established Parkinson's disease (PD) models. Quantitative proteomics and bioinformatics were used to uncover proteomics changes of URE. Western blotting was used to validate main differentially expressed proteins and test HSP90 client proteins (apoptosis-related, autophagy-related, MAPKs, PI3K, and AKT proteins). Flow cytometry and JC-1 staining assay were further used to confirm the effect of URE on MPP+-induced apoptosis in SH-SY5Y cells. Gait analysis was used to detect the behavioral changes in MPTP-induced mice. The levels of dopamine (DA) and their metabolites were examined in striatum (STR) by HPLC-EC. The positive expression of tyrosine hydroxylase (TH) was detected by immunohischemical staining and Western blotting. RESULTS URE dose-dependently increased the cell viability in MPP+-induced SH-SY5Y cells. Quantitative proteomics and bioinformatics results confirmed that HSP90 was an important differentially expressed protein of URE. URE inhibited the expression of HSP90, which further reversed MPP+-induced cell apoptosis and autophagy by increasing the expressions of Bcl-2, Cyclin D1, p-ERK, p-PI3K p85, PI3K p110α, p-AKT, and LC3-I and decreasing cleaved caspase 3, Bax, p-JNK, p-p38, and LC3-II. URE also markedly decreased the apoptotic ratio and elevated mitochondrial transmembrane potential (DΨm). Furthermore, URE treatment ameliorated behavioral impairments, increased the contents of DA and its metabolites and elevated the positive expressions of TH in SN and STR as well as the TH protein. CONCLUSIONS URE possessed the neuroprotective effect in vivo and in vitro, regulated MAPK and PI3K-AKT signal pathways, and inhibited the expression of HSP90. U. rhynchophylla has potentials as therapeutic agent in PD treatment.
Collapse
Affiliation(s)
- Yu-Long Lan
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Jun-Jun Zhou
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Jing Liu
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Xiao-Kui Huo
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Ya-Li Wang
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China.,Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Department of Natural Products Chemistry, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Jia-Hao Liang
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Jian-Chao Zhao
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China.,School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, China
| | - Cheng-Peng Sun
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Zhen-Long Yu
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Lin-Lin Fang
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Xiang-Ge Tian
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Lei Feng
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Jing Ning
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Bao-Jing Zhang
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Chao Wang
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Xin-Yu Zhao
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Xiao-Chi Ma
- College of Pharmacy, College (Institute) of Integrative Medicine, College of Medical Laboratory, Department of Neurosurgery, The Second Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| |
Collapse
|
9
|
Wu Y, Zhang TY, Fang LL, Chen ZX, Song LW, Cao JL, Yang L, Yuan Q, Xia NS. Sleeping Beauty transposon-based system for rapid generation of HBV-replicating stable cell lines. J Virol Methods 2016; 234:96-100. [PMID: 27091097 DOI: 10.1016/j.jviromet.2016.04.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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: 03/12/2016] [Revised: 04/14/2016] [Accepted: 04/15/2016] [Indexed: 01/12/2023]
Abstract
The stable HBV-replicating cell lines, which carry replication-competent HBV genome stably integrated into the genome of host cell, are widely used to evaluate the effects of antiviral agents. However, current methods to generate HBV-replicating cell lines, which are mostly dependent on random integration of foreign DNA via plasmid transfection, are less-efficient and time-consuming. To address this issue, we constructed an all-in-one Sleeping Beauty transposon system (denoted pTSMP-HBV vector) for robust generation of stable cell lines carrying replication-competent HBV genome of different genotype. This vector contains a Sleeping Beauty transposon containing HBV 1.3-copy genome with an expression cassette of the SV40 promoter driving red fluorescent protein (mCherry) and self-cleaving P2A peptide linked puromycin resistance gene (PuroR). In addition, a PGK promoter-driven SB100X hyperactive transposase cassette is placed in the outside of the transposon in the same plasmid.The HBV-replicating stable cells could be obtained from pTSMP-HBV transfected HepG2 cells by red fluorescence-activated cell sorting and puromycin resistant cell selection within 4-week. Using this system, we successfully constructed four cell lines carrying replication-competent HBV genome of genotypes A-D. The replication and viral protein expression profiles of these cells were systematically characterized. In conclusion, our study provides a high-efficiency strategy to generate HBV-replicating stable cell lines, which may facilitate HBV-related virological study.
Collapse
Affiliation(s)
- Yong Wu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Tian-Ying Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China; School of Life Science, Xiamen University, Xiamen 361102, China
| | - Lin-Lin Fang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Zi-Xuan Chen
- Affiliated Quanzhou First Hospital by Fujian Medical University, Fujian, China
| | - Liu-Wei Song
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China; School of Life Science, Xiamen University, Xiamen 361102, China
| | - Jia-Li Cao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China; School of Life Science, Xiamen University, Xiamen 361102, China
| | - Lin Yang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Quan Yuan
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen 361102, China.
| | - Ning-Shao Xia
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen 361102, China
| |
Collapse
|
10
|
Yang L, Song LW, Fang LL, Wu Y, Ge SX, Li H, Yuan Q, Zhang J, Xia NS. Evaluation of a novel chemiluminescent microplate enzyme immunoassay for hepatitis B surface antigen detection. J Virol Methods 2015; 228:55-9. [PMID: 26615806 DOI: 10.1016/j.jviromet.2015.11.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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: 07/18/2015] [Revised: 11/17/2015] [Accepted: 11/19/2015] [Indexed: 12/18/2022]
Abstract
Hepatitis B virus surface antigen (HBsAg) is an important biomarker used in the diagnosis of hepatitis B virus (HBV) infection, but false-negative results are still reported in the detection of HBsAg using commercial assays. In this study, we evaluated the qualitative properties of a novel HBsAg chemiluminescence enzyme immunoassay (CLEIA) assay--WTultra. WHO standard sample dilution series and samples from low-level HBsAg carriers (<1 ng/mL) were used to evaluate the sensitivity of the WTultra assay. Boston Biomedica, Inc. (BBI) hepatitis B seroconversion panels were used to assess the ability of the WTultra assay to detect the window period. In addition, dilution series of 22 serum samples with different genotypes, serotypes and HBsAg mutations were used to assess the WTultra assay, and these were compared with other commercial assays. The lower detection limit of the WTultra assay was 0.012 IU/mL, and it showed a high sensitivity (97.52%, 95% CI, 94.95-99.00) in the detection of 282 low-level HBsAg carriers (<1 ng/mL). In samples with various HBV genotypes, serotypes and HBsAg mutations, the WTultra assay yielded 117 positive results in 132 samples, which was significantly higher than the results with the other four commercial assays (89, 83, 65 and 45, respectively, p<0.01). In the assays of mutant strains, the WTultra assay detected 82 positive results in 90 samples, which was significantly better than the results for the Hepanostika HBsAg Ultra (58 positive) and Architect (55 positive) (p<0.01) assays, which in turn were significantly better than the Murex V.3 (41 positive, p=0.026) and AxSYM V2 (29 positive, p<0.01) assays. However, in the detection of 42 samples of wild-type strains with various genotypes and serotypes, no significant differences were observed among the WTultra (35 positive), Architect (28 positive) and Hepanostika HBsAg Ultra (31 positive) assays. However, the WTultra assay detected significantly more samples than the Murex V.3 (24 positive, p<0.01) and AxSYM V2 (16 positive, p<0.01) assays. In conclusion, the WTultra HBsAg assay has a high detection sensitivity and presents excellent results for the detection of mutants.
Collapse
Affiliation(s)
- Lin Yang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, China
| | - Liu-Wei Song
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, China; Xiamen Innodx Biotech Company, Ltd., Xiamen, China
| | - Lin-Lin Fang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, China
| | - Yong Wu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, China
| | - Sheng-Xiang Ge
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, China
| | - Hui Li
- The Department of Liver Disease, The Third Hospital of Kunming, Kunming, China.
| | - Quan Yuan
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, China.
| | - Jun Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, China
| | - Ning-Shao Xia
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, China
| |
Collapse
|
11
|
Song LW, Wang YB, Fang LL, Wu Y, Yang L, Chen JY, Ge SX, Zhang J, Xiong YZ, Deng XM, Min XP, Zhang J, Chen PJ, Yuan Q, Xia NS. Rapid Fluorescent Lateral-Flow Immunoassay for Hepatitis B Virus Genotyping. Anal Chem 2015; 87:5173-80. [DOI: 10.1021/ac504832c] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Liu-Wei Song
- National
Institute of Diagnostics and Vaccine Development in Infectious Diseases,
State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,
School of Life Sciences, Xiamen University, Xiamen 361102, China
- School
of Public Health, Xiamen University, Xiamen 361102, China
| | - Ying-Bin Wang
- National
Institute of Diagnostics and Vaccine Development in Infectious Diseases,
State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,
School of Life Sciences, Xiamen University, Xiamen 361102, China
- School
of Public Health, Xiamen University, Xiamen 361102, China
| | - Lin-Lin Fang
- National
Institute of Diagnostics and Vaccine Development in Infectious Diseases,
State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,
School of Life Sciences, Xiamen University, Xiamen 361102, China
- School
of Public Health, Xiamen University, Xiamen 361102, China
| | - Yong Wu
- National
Institute of Diagnostics and Vaccine Development in Infectious Diseases,
State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,
School of Life Sciences, Xiamen University, Xiamen 361102, China
- School
of Public Health, Xiamen University, Xiamen 361102, China
| | - Lin Yang
- National
Institute of Diagnostics and Vaccine Development in Infectious Diseases,
State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,
School of Life Sciences, Xiamen University, Xiamen 361102, China
- School
of Public Health, Xiamen University, Xiamen 361102, China
| | - Jie-Yu Chen
- Xiamen Innovax Biotech Company, Ltd., Xiamen 361022, China
| | - Sheng-Xiang Ge
- National
Institute of Diagnostics and Vaccine Development in Infectious Diseases,
State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,
School of Life Sciences, Xiamen University, Xiamen 361102, China
- School
of Public Health, Xiamen University, Xiamen 361102, China
| | - Jing Zhang
- National
Institute of Diagnostics and Vaccine Development in Infectious Diseases,
State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,
School of Life Sciences, Xiamen University, Xiamen 361102, China
- School
of Public Health, Xiamen University, Xiamen 361102, China
| | - You-Zheng Xiong
- National
Institute of Diagnostics and Vaccine Development in Infectious Diseases,
State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,
School of Life Sciences, Xiamen University, Xiamen 361102, China
- School
of Public Health, Xiamen University, Xiamen 361102, China
- School
of Information Science and Engineering, Computer Science Department, Xiamen University, Xiamen 361005, China
| | - Xiu-Mei Deng
- Xiamen Innovax Biotech Company, Ltd., Xiamen 361022, China
| | - Xiao-Ping Min
- National
Institute of Diagnostics and Vaccine Development in Infectious Diseases,
State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,
School of Life Sciences, Xiamen University, Xiamen 361102, China
- School
of Public Health, Xiamen University, Xiamen 361102, China
- School
of Information Science and Engineering, Computer Science Department, Xiamen University, Xiamen 361005, China
| | - Jun Zhang
- National
Institute of Diagnostics and Vaccine Development in Infectious Diseases,
State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,
School of Life Sciences, Xiamen University, Xiamen 361102, China
- School
of Public Health, Xiamen University, Xiamen 361102, China
| | - Pei-Jer Chen
- National
Taiwan University College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Quan Yuan
- National
Institute of Diagnostics and Vaccine Development in Infectious Diseases,
State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,
School of Life Sciences, Xiamen University, Xiamen 361102, China
- School
of Public Health, Xiamen University, Xiamen 361102, China
| | - Ning-Shao Xia
- National
Institute of Diagnostics and Vaccine Development in Infectious Diseases,
State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,
School of Life Sciences, Xiamen University, Xiamen 361102, China
- School
of Public Health, Xiamen University, Xiamen 361102, China
| |
Collapse
|
12
|
Hou FQ, Song LW, Yuan Q, Fang LL, Ge SX, Zhang J, Sheng JF, Xie DY, Shang J, Wu SH, Sun YT, Wei SF, Wang MR, Wan MB, Jia JD, Luo GH, Tang H, Li SC, Niu JQ, Zhou WD, Sun L, Xia NS, Wang GQ. Quantitative hepatitis B core antibody level is a new predictor for treatment response in HBeAg-positive chronic hepatitis B patients receiving peginterferon. Am J Cancer Res 2015; 5:218-26. [PMID: 25553110 PMCID: PMC4279186 DOI: 10.7150/thno.10636] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 10/02/2014] [Indexed: 02/05/2023] Open
Abstract
A recent study revealed that quantitative hepatitis B core antibody (qAnti-HBc) level could serve as a novel marker for predicting treatment response. In the present study, we further investigated the predictive value of qAnti-HBc level in HBeAg-positive patients undergoing PEG-IFN therapy. A total of 140 HBeAg-positive patients who underwent PEG-IFN therapy for 48 weeks and follow-up for 24 weeks were enrolled in this study. Serum samples were taken every 12 weeks post-treatment. The predictive value of the baseline qAnti-HBc level for treatment response was evaluated. Patients were further divided into 2 groups according to the baseline qAnti-HBc level, and the response rate was compared. Additionally, the kinetics of the virological and biochemical parameters were analyzed. Patients who achieved response had a significantly higher baseline qAnti-HBc level (serological response [SR], 4.52±0.36 vs. 4.19±0.58, p=0.001; virological response [VR], 4.53±0.35 vs. 4.22±0.57, p=0.005; combined response [CR], 4.50±0.36 vs. 4.22±0.58, p=0.009)). Baseline qAnti-HBc was the only parameter that was independently correlated with SR (p=0.008), VR (p=0.010) and CR(p=0.019). Patients with baseline qAnti-HBc levels ≥30,000 IU/mL had significantly higher response rates, more HBV DNA suppression, and better hepatitis control in PEG-IFN treatment. In conclusion, qAnti-HBc level may be a novel biomarker for predicting treatment response in HBeAg-positive patients receiving PEG-IFN therapy.
Collapse
|
13
|
Abstract
PURPOSE Lessened acuity for oblique contours as compared with horizontal and vertical contours, the oblique effect, is characteristic of humans and animals. The magnitude of the oblique effect in humans varies with ethnic origin. Three experiments were performed to determine the source and extent of this variation in Chinese and Caucasian subjects. METHODS AND RESULTS Experiment I. Acuity for vertical and oblique gratings was measured in Chinese infants with a preferential looking technique. The development of visual acuity for Chinese infants was found to be strikingly similar to that reported for Caucasian infants. For infants of both races at about 1 year of age, the magnitude of the oblique effect was about 1 octave. Experiment II. Acuity for main-axis (horizontal and vertical) and oblique gratings was measured in Chinese and Caucasian adults. The oblique effect in Chinese subjects was significantly smaller than in Caucasian subjects. The Chinese also had significantly better acuity for oblique gratings, but not for main-axis gratings. Experiment III. To determine whether differential sensitivity to main-axis and oblique-axis gratings extends to suprathreshold spatial frequencies, contrast sensitivity for four orientations at each of five spatial frequencies was assessed in Chinese and Caucasian adults. There were no significant differences in contrast sensitivity between Chinese and Caucasian subjects at any spatial frequency. The differential sensitivity increased with increasing spatial frequency for both ethnic groups. CONCLUSION The difference in the magnitudes of the oblique effect in Chinese and Caucasian subjects appears in acuity thresholds in adults, and may result solely from the Chinese having better acuity for obliquely oriented gratings.
Collapse
Affiliation(s)
- L L Fang
- Institute of Psychology, Chinese Academy of Sciences, Beijing, Peoples Republic of China
| | | | | | | |
Collapse
|
14
|
Fang LL. [The prosthodontic treatment of 42 patients with dentition defect after MTM correction]. Shanghai Kou Qiang Yi Xue 1995; 4:23-4. [PMID: 15160103] [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: 04/29/2023]
Affiliation(s)
- L L Fang
- Department of Dentistry, United Hospital of Shekou Industrial District. Guangdong 518067, China
| |
Collapse
|
15
|
Fang LL. [Behavioral and psychological observation of children during orthodontics]. Shanghai Kou Qiang Yi Xue 1994; 3:116. [PMID: 15160164] [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: 04/29/2023]
Affiliation(s)
- L L Fang
- United Hospital of Shekou Industrial Area of Shenzhen City.Guangdong 518067,China
| |
Collapse
|
16
|
Chen HC, Lai YH, Guh JY, Torng JK, Fang LL, Tsai JH. Clinical study of primary IgA nephropathy in adults. Gaoxiong Yi Xue Ke Xue Za Zhi 1988; 4:285-93. [PMID: 3165135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
17
|
Thorn F, Held R, Fang LL. Orthogonal astigmatic axes in Chinese and Caucasian infants. Invest Ophthalmol Vis Sci 1987; 28:191-4. [PMID: 3804651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Caucasian infants are known to have a high incidence of astigmatism. The axis of greatest power is usually in the orientation orthogonal to the most common type found in Caucasian adults, with-the-rule astigmatism. We now find that Chinese infants also have a high incidence of astigmatism relative to adults, but its orientation is orthogonal to that of Caucasian infants. The source of this racial difference is not clear. It is unlikely to be due to the most obvious difference, the structure of the eyelids.
Collapse
|
18
|
Fang LL. [Measurement of torsional fusional vergences in 232 normal youths]. Zhonghua Yan Ke Za Zhi 1984; 20:49-50. [PMID: 6434273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
19
|
Fang LL. [A study of heterophoria and fusional power in normal youths (author's transl)]. Zhonghua Yan Ke Za Zhi 1980; 16:153-7. [PMID: 6775911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
20
|
Tseng KY, Chou YP, Chang LY, Fang LL. [Pharmacologic studies of Radix puerariae. I. Its effect on dog arterial pressure, vascular reactivity, and cerebral and peripheral circulation]. Zhonghua Yi Xue Za Zhi 1974; 5:265-70. [PMID: 4211555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|