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Wei B, Zou W, Hu X, Wang Y, Chen C, Tang J, Kang P, Gao H, Tang J, Pan Z. Evolution of rates, patterns, and driving forces of green eco-spaces in a subtropical hilly region. Sci Total Environ 2024; 926:172093. [PMID: 38556019 DOI: 10.1016/j.scitotenv.2024.172093] [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] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 03/23/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
Monitoring ecological resource change in mountainous and hilly areas (MHAs) is vital for theoretical and practical advancements of ecological resource utilization and management in complex ecosystems. The factors driving structural and functional changes in green eco-spaces (GES) in these areas are complex and uncertain, with notable spatial scale effects. However, analyzing the multi-scale driving mechanisms of ecological and socioeconomic factors at a fine spatiotemporal scale presents significant challenges. To address these challenges, we analyzed dynamic changes in GES and eco-socio-economic development in Shanghang County, a typical mountainous region in southern China. We used multiple linear regression and multi-scale geographically weighted regression model to identify key factors driving GES changes and their multi-scale effects at both global and local levels. Over the past two decades, the GES area in the study area has exhibited a consistent pattern of decline, characterized by phases of gradual decline (2000-2005), sharp decline (2005-2009), slow decline (2009-2019). Key global factors driving GES changes included elevation (ELE), slope (SLOPE), population density (PD), distance to settlements (SETTLE), and distance to administrative centers (ADMIN). These factors exhibited significant spatial heterogeneity and multi-scale effects on GES changes. Specifically, SETTLE, PD, SLOPE, and ELE consistently drove GES changes at the local level, while ADMIN only showed significant localized effects during 2005-2009. The synergy between SETTLE and SLOPE had a considerable impact on GES changes, increasing over time, whereas ELE and PD demonstrated a consistent trade-off effect. These findings provide detailed spatiotemporal insights into the driving mechanisms of natural ecological resources, offering crucial guidance for environmental management, land source management, regional economic development, and biodiversity conservation in Shanghang and analogous subtropical hilly regions worldwide.
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Affiliation(s)
- Baojing Wei
- College of Landscape Architecture, Hunan Provincial Big Data Engineering Technology Research Center of Natural Protected Areas Landscape Resources, Institute of Urban and Rural Landscape Ecology, Yuelushan Laboratory Variety Innovation Center, Central South University of Forestry and Technology (CSUFT), Changsha 410004, China; National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, College of Life and Environmental Sciences, CSUFT, Changsha, Hunan 410004, China
| | - Wei Zou
- College of Landscape Architecture, Hunan Provincial Big Data Engineering Technology Research Center of Natural Protected Areas Landscape Resources, Institute of Urban and Rural Landscape Ecology, Yuelushan Laboratory Variety Innovation Center, Central South University of Forestry and Technology (CSUFT), Changsha 410004, China
| | - Xijun Hu
- College of Landscape Architecture, Hunan Provincial Big Data Engineering Technology Research Center of Natural Protected Areas Landscape Resources, Institute of Urban and Rural Landscape Ecology, Yuelushan Laboratory Variety Innovation Center, Central South University of Forestry and Technology (CSUFT), Changsha 410004, China.
| | - Yezi Wang
- College of Landscape Architecture, Hunan Provincial Big Data Engineering Technology Research Center of Natural Protected Areas Landscape Resources, Institute of Urban and Rural Landscape Ecology, Yuelushan Laboratory Variety Innovation Center, Central South University of Forestry and Technology (CSUFT), Changsha 410004, China
| | - Cunyou Chen
- College of Landscape Architecture, Hunan Provincial Big Data Engineering Technology Research Center of Natural Protected Areas Landscape Resources, Institute of Urban and Rural Landscape Ecology, Yuelushan Laboratory Variety Innovation Center, Central South University of Forestry and Technology (CSUFT), Changsha 410004, China
| | - Jin Tang
- Beijing Accurate Technology Co., Ltd., Beijing 100080, China
| | - Peng Kang
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, College of Life and Environmental Sciences, CSUFT, Changsha, Hunan 410004, China
| | - Haiqiang Gao
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, College of Life and Environmental Sciences, CSUFT, Changsha, Hunan 410004, China
| | - Jia Tang
- College of Landscape Architecture, Hunan Provincial Big Data Engineering Technology Research Center of Natural Protected Areas Landscape Resources, Institute of Urban and Rural Landscape Ecology, Yuelushan Laboratory Variety Innovation Center, Central South University of Forestry and Technology (CSUFT), Changsha 410004, China
| | - Zhenzhen Pan
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, College of Life and Environmental Sciences, CSUFT, Changsha, Hunan 410004, China
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Wei B, Mao X, Liu S, Liu M, Wang Z, Kang P, Gao H, Tang W, Feng S, Pan Z. Breaking the poverty trap in an ecologically fragile region through ecological engineering: A close-up look at long-term changes in ecosystem services. J Environ Manage 2024; 358:120921. [PMID: 38652992 DOI: 10.1016/j.jenvman.2024.120921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 03/15/2024] [Accepted: 04/13/2024] [Indexed: 04/25/2024]
Abstract
Ecological vulnerability and poverty are interrelated and must be addressed together. The resolution of this issue will help us to meet the challenges during the process of implementing concrete actions for realizing the 2030 UN sustainable development goals (SDGs). Ecological restoration projects (ERPs) can enhance ecosystem services (ESs) while providing policy support for improving people's livelihoods. However, processes and mechanisms of ERPs on the ecological environment and socioeconomic development in poverty-stricken and ecologically fragile areas have rarely been studied. To address these issues, we conducted a comparative analysis on the changes of land use and land cover (LULC), ecosystem services (ESs), and socioeconomic development in Bijie City, a karst rocky desertification area in southwest China, before and after the implementation of ERPs in 2000, as well as the complex relationship between these factors. ERPs have affected LULCs, ESs, socioeconomics, and poverty reduction significantly since 2000. Specifically, the total ecosystem service value (ESV) in the study area has increased by more than 3 times in the past 30 years, with the ESV of tourism services and carbon storage increasing the most, from CNY 0.001 and 337.07 billion in 1990 to CNY 11.07 and 108.97 billion in 2019, respectively. The correlation between ESs is mainly synergistic, while the tradeoff between carbon storage and water yield is in a fluctuating upward trend. LULC conversion of cropland to green, and cropland to water, wetland and shrubs has positive effects on carbon storage and water yield, respectively. During study period, GDP, urbanization increased by over 70 times, 5 times, respectively, whereas poverty population, poverty incidence, and employment rate of various sectors (i.e., agriculture, forest, animal, and fishery, or AFAF) decreased by 96.4%, 97.7%, and 18.24%, respectively. Our findings emphasized that ERPs can effectively help poor and ecologically fragile areas to get out of the poverty trap and achieve the "win-win" goals of ecological and socio-economic sustainable development. These results have profound environmental management references to China and other developing countries around the world in realizing ecological restoration, poverty reduction, and the SDGs.
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Affiliation(s)
- Baojing Wei
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, College of Life Science and Technology, Central South University of Forestry and Technology (CSUFT), Changsha, Hunan, 410004, China; Technology Innovation Center for Ecological Protection and Restoration in Dongting Lake Basin, Ministry of Nature Resources, Changsha, Hunan, 410004, China; Collegeof Landscape Architecture, Hunan Provincial Big Data Engineering Technology Research Center of Natural Protected Areas Landscape Resources, Institute of Urban and Rural Landscape Ecology, Yuelushan Laboratory Variety Innovation Center, CSUFT, Changsha, Hunan 410004, China
| | - Xue Mao
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, College of Life Science and Technology, Central South University of Forestry and Technology (CSUFT), Changsha, Hunan, 410004, China; Technology Innovation Center for Ecological Protection and Restoration in Dongting Lake Basin, Ministry of Nature Resources, Changsha, Hunan, 410004, China
| | - Shuguang Liu
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, College of Life Science and Technology, Central South University of Forestry and Technology (CSUFT), Changsha, Hunan, 410004, China; Technology Innovation Center for Ecological Protection and Restoration in Dongting Lake Basin, Ministry of Nature Resources, Changsha, Hunan, 410004, China.
| | - Maochou Liu
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, College of Life Science and Technology, Central South University of Forestry and Technology (CSUFT), Changsha, Hunan, 410004, China; Technology Innovation Center for Ecological Protection and Restoration in Dongting Lake Basin, Ministry of Nature Resources, Changsha, Hunan, 410004, China
| | - Zhao Wang
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, College of Life Science and Technology, Central South University of Forestry and Technology (CSUFT), Changsha, Hunan, 410004, China; Technology Innovation Center for Ecological Protection and Restoration in Dongting Lake Basin, Ministry of Nature Resources, Changsha, Hunan, 410004, China
| | - Peng Kang
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, College of Life Science and Technology, Central South University of Forestry and Technology (CSUFT), Changsha, Hunan, 410004, China; Technology Innovation Center for Ecological Protection and Restoration in Dongting Lake Basin, Ministry of Nature Resources, Changsha, Hunan, 410004, China
| | - Haiqiang Gao
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, College of Life Science and Technology, Central South University of Forestry and Technology (CSUFT), Changsha, Hunan, 410004, China; Technology Innovation Center for Ecological Protection and Restoration in Dongting Lake Basin, Ministry of Nature Resources, Changsha, Hunan, 410004, China
| | - Wenxi Tang
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, College of Life Science and Technology, Central South University of Forestry and Technology (CSUFT), Changsha, Hunan, 410004, China; Technology Innovation Center for Ecological Protection and Restoration in Dongting Lake Basin, Ministry of Nature Resources, Changsha, Hunan, 410004, China
| | - Shuailong Feng
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, College of Life Science and Technology, Central South University of Forestry and Technology (CSUFT), Changsha, Hunan, 410004, China; Technology Innovation Center for Ecological Protection and Restoration in Dongting Lake Basin, Ministry of Nature Resources, Changsha, Hunan, 410004, China
| | - Zhenzhen Pan
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, College of Life Science and Technology, Central South University of Forestry and Technology (CSUFT), Changsha, Hunan, 410004, China; Technology Innovation Center for Ecological Protection and Restoration in Dongting Lake Basin, Ministry of Nature Resources, Changsha, Hunan, 410004, China
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Cao Y, Tian Y, Huang J, Xu L, Fan Z, Pan Z, Chen S, Gao Y, Wei L, Zheng S, Zhang X, Yu Y, Ren F. CRISPR/Cas13-assisted carbapenem-resistant Klebsiella pneumoniae detection. J Microbiol Immunol Infect 2024; 57:118-127. [PMID: 37963801 DOI: 10.1016/j.jmii.2023.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 09/25/2023] [Accepted: 10/26/2023] [Indexed: 11/16/2023]
Abstract
BACKGROUND/PURPOSE Carbapenem-resistant Klebsiella pneumoniae (CRKP) is capable of causing serious community and hospital-acquired infections. However, currently, the identification of CRKP is complex and inefficient. Hence, this study aimed to develop methods for the early and effective identification of CRKP to allow reasonable antimicrobial therapy in a timely manner. METHODS K. pneumoniae (KP)-, K. pneumoniae carbapenemase (KPC)- and New Delhi metallo-β-lactamase (NDM)- specific CRISPR RNAs (crRNAs), polymerase chain reaction (PCR) primers and recombinase-aided amplification (RAA) primers were designed and screened in conserved sequence regions. We established fluorescence and lateral flow strip assays based on CRISPR/Cas13a combined with PCR and RAA, respectively, to assist in the detection of CRKP. Sixty-one clinical strains (including 51 CRKP strains and 10 carbapenem-sensitive strains) were collected for clinical validation. RESULTS Using the PCR-CRISPR assay, the limit of detection (LOD) for KP and the blaKPC and blaNDM genes reached 1 copy/μL with the fluorescence signal readout. Using the RAA-CRISPR assay, the LOD could reach 101 copies/μL with both the fluorescence signal readout and the lateral flow strip readout. Additionally, the positivity rates of CRKP-positive samples detected by the PCR/RAA-CRISPR fluorescence and RAA-CRISPR lateral flow strip methods was 92.16% (47/51). The sensitivity and specificity reached 100% for KP and blaKPC and blaNDM gene detection. For detection in a simulated environmental sample, 1 CFU/cm2 KP could be detected. CONCLUSION We established PCR/RAA-CRISPR assays for the detection of blaKPC and blaNDM carbapenemase genes, as well as KP, to facilitate the detection of CRKP.
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Affiliation(s)
- Yaling Cao
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Yuan Tian
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Jing Huang
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Department of Infection Control, Beijing 100730, China.
| | - Ling Xu
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Zihao Fan
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Zhenzhen Pan
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Sisi Chen
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Yao Gao
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Linlin Wei
- Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Sujun Zheng
- Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Xiangying Zhang
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Yanhua Yu
- Center for Clinical Laboratory, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Feng Ren
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
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Deng W, Zhang J, Yang J, Wang Z, Pan Z, Yue X, Zhao R, Qian Y, Yu Y, Li X. Changes in brain susceptibility in Wilson's disease patients: a quantitative susceptibility mapping study. Clin Radiol 2024; 79:e282-e286. [PMID: 38087682 DOI: 10.1016/j.crad.2023.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 10/30/2023] [Accepted: 11/01/2023] [Indexed: 01/02/2024]
Abstract
AIM To assess changes in the susceptibility of the caudate nucleus (CN), putamen, and globus pallidus (GP) in patients with neurological and hepatic Wilson's disease (WD) by quantitative susceptibility mapping (QSM). MATERIAL AND METHODS The brain MRI images of 33 patients diagnosed with WD and 20 age-matched controls were analysed retrospectively. All participants underwent brain T1-weighted, T2-weighted, and QSM imaging using a 1.5 T magnetic resonance imaging (MRI) machine. QSM maps were evaluated with the STISuite toolbox. The quantitative susceptibility levels of the CN, putamen, and GP were analysed using region of interest analysis on QSM maps. Differences among neurological WD patients, hepatic patients, and controls were determined. RESULTS Susceptibility levels were significantly higher for all examined structures (CN, putamen and GP) in patients with neurological WD compared with controls (all p<0.05) and hepatic WD patients (all p<0.05). No statistically significant differences were found in susceptibility levels between patients with hepatic WD and controls (all p>0.05). CONCLUSION The QSM technique is a valuable tool for detecting changes in brain susceptibility in WD patients, indicating abnormal metal deposition. Notably, the current findings suggest that neurological WD patients exhibit more severe susceptibility changes compared with hepatic WD patients. Therefore, QSM can be utilised as a complementary method to detect brain injury in WD patients.
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Affiliation(s)
- W Deng
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, Hefei, Anhui Province, No. 218 Jixi Road, Hefei, 230022, China
| | - J Zhang
- Department of Neurology, Institute of Neurology, Anhui University of Traditional Chinese Medicine, Anhui, China
| | - J Yang
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, Hefei, Anhui Province, No. 218 Jixi Road, Hefei, 230022, China
| | - Z Wang
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, Hefei, Anhui Province, No. 218 Jixi Road, Hefei, 230022, China
| | - Z Pan
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, Hefei, Anhui Province, No. 218 Jixi Road, Hefei, 230022, China
| | - X Yue
- Philips Healthcare, Beijing, China
| | - R Zhao
- Department of Cardiology, The First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Y Qian
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, Hefei, Anhui Province, No. 218 Jixi Road, Hefei, 230022, China
| | - Y Yu
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, Hefei, Anhui Province, No. 218 Jixi Road, Hefei, 230022, China
| | - X Li
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Research Center of Clinical Medical Imaging, Anhui Province Clinical Image Quality Control Center, Hefei, Anhui Province, No. 218 Jixi Road, Hefei, 230022, China.
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Tian Y, Fan Z, Xu L, Cao Y, Chen S, Pan Z, Gao Y, Li H, Zheng S, Ma Y, Duan Z, Zhang X, Ren F. CRISPR/Cas13a-assisted rapid and portable HBV DNA detection for low-level viremia patients. Emerg Microbes Infect 2023; 12:e2177088. [PMID: 36735916 PMCID: PMC9946317 DOI: 10.1080/22221751.2023.2177088] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND & AIMS The WHO declared to eliminate hepatitis B virus (HBV) by 2030. However, an increasing number of patients are presenting with low-level viremia (LLV) with the widespread use of antiviral medications. The diagnostic efficiency and coverage area of HBV infection are low. Hence, this study intended to drive the HBV infection detection to effectively adaptable for any small to medium-sized laboratory or field survey. METHODS We established, optimized, and evaluated a colloidal gold test strip for detection of HBV DNA based on CRISPR/Cas13a combined with recombinase-aided amplification (RAA) technology. Furthermore, 180 HBV-infected patients (including patients with different viral loads, LLV patients and dynamic plasma samples of patients on antiviral therapy) were enrolled for clinical validation. RESULTS The strip detection of HBV DNA was established based on RAA-CRISPR-Cas13a technology with a sensitivity of 101 copies/μL and a specificity of 100%. HBV DNA gradient concentration plasmids and clinical samples were effectively identified by this approach. The positive coincidence rate for LLV patients was 87%, while the negative coincidence rate was 100%. The positive coincidence rate reached 100% in LLV patients (viral loading >100 IU/mL). The sensitivity, specificity, positive predictive agreement (PPA) and negative predictive agreement (NPA) values of dynamic plasma detection in patients on antiviral therapy were 100%, 92.15%, 93.75%, and 100%, respectively. CONCLUSIONS We develop rapid and portable RAA-CRISPR/Cas13a-based strip of HBV DNA detection for LLV patients. This study provides a visual and faster alternative to current PCR-based diagnosis for HBV infection.
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Affiliation(s)
- Yuan Tian
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China,Beijing Institute of Hepatology, Beijing, People’s Republic of China
| | - Zihao Fan
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China,Beijing Institute of Hepatology, Beijing, People’s Republic of China
| | - Ling Xu
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China,Beijing Institute of Hepatology, Beijing, People’s Republic of China
| | - Yaling Cao
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China,Beijing Institute of Hepatology, Beijing, People’s Republic of China
| | - Sisi Chen
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China,Beijing Institute of Hepatology, Beijing, People’s Republic of China
| | - Zhenzhen Pan
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China,Beijing Institute of Hepatology, Beijing, People’s Republic of China
| | - Yao Gao
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China,Beijing Institute of Hepatology, Beijing, People’s Republic of China
| | - Hao Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, People’s Republic of China
| | - Sujun Zheng
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Yingmin Ma
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China,Beijing Institute of Hepatology, Beijing, People’s Republic of China
| | - Zhongping Duan
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China,Zhongping Duan Beijing Youan Hospital, Capital Medical University, No. 8, Xitou Tiao Road, Youwai Street, Fengtai DistrictBeijing 100069, China
| | - Xiangying Zhang
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China,Beijing Institute of Hepatology, Beijing, People’s Republic of China,Xiangying Zhang Beijing Youan Hospital, Capital Medical University, No. 8, XitouTiao Road, Youwai Street, Fengtai DistrictBeijing 100069, China
| | - Feng Ren
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China,Beijing Institute of Hepatology, Beijing, People’s Republic of China, Feng Ren Beijing Youan Hospital, Capital Medical University, No. 8, XitouTiao Road, Youwai Street, Fengtai District, Beijing100069, People’s Republic of China
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Tian Y, Fan Z, Zhang X, Xu L, Cao Y, Pan Z, Mo Y, Gao Y, Zheng S, Huang J, Zou H, Duan Z, Li H, Ren F. CRISPR/Cas13a-Assisted accurate and portable hepatitis D virus RNA detection. Emerg Microbes Infect 2023; 12:2276337. [PMID: 37882492 PMCID: PMC10796118 DOI: 10.1080/22221751.2023.2276337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 10/23/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND & AIMS Hepatitis delta virus (HDV) infection accelerates the progression of chronic hepatitis B virus (HBV) infection, posing a large economic and health burden to patients. At present, there remains a lack of accurate and portable detection methods for HDV RNA. Here, we aim to establish a convenient, rapid, highly sensitive and specific method to detect HDV RNA using CRISPR-Cas13a technology. METHODS We established fluorescence (F) and lateral flow strip (L) assays based on CRISPR-Cas13a combined with RT-PCR and RT-RAA for HDV RNA detection, respectively. we conducted a cohort study of 144 patients with HDV-IgG positive to evaluate the CRISPR-Cas13a diagnostic performance for identifying HDV in clinical samples, compared to RT-qPCR and RT-ddPCR. RESULTS For synthetic HDV RNA plasmids, the sensitivity of RT-PCR-CRISPR-based fluorescence assays was 1 copy/μL, higher than that of RT-qPCR (10 copies/μL) and RT-ddPCR (10 copies/μL); for HDV RNA-positive samples, the sensitivity of RT-RAA-CRISPR-based fluorescence and lateral flow strip assays was 10 copies/μL, as low as that of RT-qPCR and RT-ddPCR, and the assay took only approximately 85 min. Additionally, the positivity rates of anti-HDV IgG-positive samples detected by the RT-qPCR, RT-ddPCR, RT-PCR-CRISPR fluorescence and RT-RAA-CRISPR lateral flow strip methods were 66.7% (96/144), 76.4% (110/144), 81.9% (118/144), and 72.2% (104/144), respectively. CONCLUSIONS We developed a highly sensitive and specific, as well as a portable and easy CRISPR-based assay for the detection of HDV RNA, which could be a prospective measure for monitoring the development of HDV infection and evaluating the therapeutic effect.
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Affiliation(s)
- Yuan Tian
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Zihao Fan
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Xiangying Zhang
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Ling Xu
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Yaling Cao
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Zhenzhen Pan
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Yinkang Mo
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Yao Gao
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Sujun Zheng
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Jing Huang
- Department of Infection Control, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Huaibin Zou
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Zhongping Duan
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Hao Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, People’s Republic of China
| | - Feng Ren
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
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Pan Z, Chen S, Xu L, Gao Y, Cao Y, Fan Z, Tian Y, Zhang X, Duan Z, Ren F. Diagnostic Efficacy of Serological Antibody Detection Tests for Hepatitis Delta Virus: A Systematic Review and Meta-Analysis. Viruses 2023; 15:2345. [PMID: 38140586 PMCID: PMC10747714 DOI: 10.3390/v15122345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 11/21/2023] [Accepted: 11/24/2023] [Indexed: 12/24/2023] Open
Abstract
Background and Aims Coinfection of hepatitis delta virus (HDV) with hepatitis B virus (HBV) causes the most severe form of viral hepatitis, and the global prevalence of HDV infection is underestimated. Although serological testing of anti-HDV antibodies is widely used in the diagnosis of HDV, its diagnostic efficacy remains unclear. This study aimed to evaluate the diagnostic efficacy of HDV serological tests, the results of which may assist in the diagnosis of HDV. Methods Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines were followed. The PubMed, Web of Science and Cochrane Library databases were searched from the beginning to 31 May 2023. Study quality was assessed using the Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2) tool. STATA SE was used for the meta-analysis of the sensitivity, specificity, positive likelihood ratio and negative likelihood ratio. Results Among a total of 1376 initially identified studies, only 12 articles met the final inclusion criteria. The pooled sensitivity and specificity were 1.00 (95% CI: 0.00-1.00) and 0.71 (95% CI: 0.50-0.78) for HDV total antibodies, 0.96 (95% CI: 0.83-0.99) and 0.98 (95% CI: 0.82-1.00) for anti-HDV IgM and 0.95 (95% CI: 0.86-0.98) and 0.96 (95% CI: 0.67-1.00) for anti-HDV IgG. The pooled sensitivity and specificity for HDV serological tests were 0.99 (95% CI: 0.96-1.00) and 0.90 (95% CI: 0.79-0.96). Conclusions This meta-analysis suggests that serological tests have high diagnostic performance in detecting antibodies against HDV, especially in HDV IgM and IgG. However, this conclusion is based on studies of a limited number and quality, and the development of new diagnostic tools with higher precision and reliability is still necessary.
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Affiliation(s)
- Zhenzhen Pan
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China; (Z.P.); (L.X.); (Y.G.); (Y.C.); (Z.F.); (Y.T.); (X.Z.)
| | - Sisi Chen
- Beijing Youan Hospital, Capital Medical University, Beijing 100069, China; (S.C.); (Z.D.)
| | - Ling Xu
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China; (Z.P.); (L.X.); (Y.G.); (Y.C.); (Z.F.); (Y.T.); (X.Z.)
| | - Yao Gao
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China; (Z.P.); (L.X.); (Y.G.); (Y.C.); (Z.F.); (Y.T.); (X.Z.)
| | - Yaling Cao
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China; (Z.P.); (L.X.); (Y.G.); (Y.C.); (Z.F.); (Y.T.); (X.Z.)
| | - Zihao Fan
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China; (Z.P.); (L.X.); (Y.G.); (Y.C.); (Z.F.); (Y.T.); (X.Z.)
| | - Yuan Tian
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China; (Z.P.); (L.X.); (Y.G.); (Y.C.); (Z.F.); (Y.T.); (X.Z.)
| | - Xiangying Zhang
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China; (Z.P.); (L.X.); (Y.G.); (Y.C.); (Z.F.); (Y.T.); (X.Z.)
| | - Zhongping Duan
- Beijing Youan Hospital, Capital Medical University, Beijing 100069, China; (S.C.); (Z.D.)
| | - Feng Ren
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China; (Z.P.); (L.X.); (Y.G.); (Y.C.); (Z.F.); (Y.T.); (X.Z.)
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Chen S, Zhang X, Xu L, Tian Y, Fan Z, Cao Y, Pan Z, Gao Y, Zheng S, Duan Z, Liu M, Ren F. Performance of Hepatitis Delta Virus (HDV) RNA Testing for the Diagnosis of Active HDV Infection: Systematic Review and Meta-analysis. J Clin Transl Hepatol 2023; 11:1368-1376. [PMID: 37719969 PMCID: PMC10500291 DOI: 10.14218/jcth.2022.00107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 04/09/2023] [Accepted: 05/10/2023] [Indexed: 07/03/2023] Open
Abstract
Background and Aims Hepatitis delta virus (HDV) is a defective virus and causes severe liver disease. Several HDV RNA assays have been developed, however the diagnostic efficacy remains unclear.This systematic review and meta-analysis aims to evaluate the diagnostic accuracy of HDV RNA assays to aid in the diagnosis of active hepatitis D. Methods The PubMed, Embase, and Cochrane Library databases were systematically searched from the beginning to June 31, 2022. Information on the characteristics of the literature and data on sensitivity, specificity, and area under curve (AUC) of the receiver operating characteristic (ROC) were extracted. Stata 14.0 was used for meta-analysis of the combined sensitivity, specificity, positive likelihood ratio, and negative likelihood ratio. Results A total of 10 studies were included in the meta-analysis. The summary sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, and diagnostic odds ratio of HDV RNA assays for HDV diagnosis were 0.92 (95% CI: 0.87-0.95), 0.90 (95% CI: 0.86-0.93), 7.74 (95% CI: 5.31-11.29), 0.10 (95% CI: 0.06-0.18) and 99.90 (95% CI: 47.08-211.99), respectively. The AUC of the pooled ROC curve was 0.95 (95% CI: 0.92-0.96). Conclusions The results show that HDV RNA assays had high diagnostic performance. However, that is limited by the number and quality of studies. Standard protocols for the development of assays by manufacturers and larger studies on the use of the assays are needed.
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Affiliation(s)
- Sisi Chen
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Xiangying Zhang
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Ling Xu
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Yuan Tian
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Zihao Fan
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Yaling Cao
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Zhenzhen Pan
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Yao Gao
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Sujun Zheng
- The First Department of Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Zhongping Duan
- Fourth Department of Hepatology Center, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Mei Liu
- Department of Oncology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Feng Ren
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China
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Zhang R, Liu Y, Yang R, Chen C, Fu C, Pan Z, Cai W, He SM, Zhang W. Deep Learning for Automated Contouring of Primary Gross Tumor Volumes by MRI for Radiation Therapy of Brain Metastasis. Int J Radiat Oncol Biol Phys 2023; 117:e496. [PMID: 37785562 DOI: 10.1016/j.ijrobp.2023.06.1734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Radiotherapy is one of the most effective methods for the treatment of brain metastases (BMs). Traditional manual delineation of primary gross tumor volumes (GTV) of multiple BMs (especially small metastases) in radiotherapy practice is extremely labor intensive and highly dependent on oncologists' experience, achieving the precise and efficient automatic delineation of BMs is of great significance for efficient and homogeneous one-stop adaptive radiotherapy. MATERIALS/METHODS We retrospectively collected 62 MRI (non-enhanced T1-weighted sequences) sequences of 50 patients with BMs from January 2020 to July 2021. An automatic model (BUC-Net) for automatic delineation BMs was proposed in this work, which was based on deep learning by combining 3D bottler layer module and the cascade architecture to improve the accuracy and efficient of BMs' automatic delineation, especially for small metastases with tiny size and relatively low contrast. The prosed method was compared with the existing 3D U-Net (U-Net) and 3D U-Net Cascade (U-Net Cascade). The performance of our proposed method was evaluated by Dice similarity coefficient (DSC), 95% Hausdorff distance (HD95) and average surface distance (ASD) with human experts. RESULTS The automatic segmentation results of BUC-Net evaluated with 310 BMs in 13 test patients was summarized in Table 1. These BMs in each test patient were automatically delineated by two types of contours: as a whole tumor contour (Whole-delineation) and the multiple tumor contours (Multiple-delineation). BUC-Net performed the best mean DSC and HD95, which is significantly outperformed U-Net (Whole-delineation: 0.911 & 0.894 of DSC, Multiple-delineation: 0.794 & 0.754 of DSC, P < 0.05 for both) and U-Net cascade (Whole-delineation: 0.947 & 7.141 of HD95, Multiple-delineation: 0.902 & 1.171 of HD95, P < 0.05 for both); Additionally, BUC-Net achieved the best mean ASD for Whole-delineation and comparable ASD (0.290 & 0.277, P > 0) for Multiple-delineation with U-Net Cascade. CONCLUSION Our results showed that the proposed approach is promising for the automatic delineation of BMs in MRI, which can be integrated into a radiotherapy workflow to significantly shorten segmentation time.
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Affiliation(s)
- R Zhang
- Department of Radiation Oncology, The First Hospital of Tsinghua University, Beijing, China
| | - Y Liu
- United Imaging Research Institute of Innovative Medical Equipment, Shenzhen, China
| | - R Yang
- Department of Radiation Oncology, The First Hospital of Tsinghua University, Beijing, China
| | - C Chen
- Department of Radiation Oncology, The First Hospital of Tsinghua University, Beijing, China
| | - C Fu
- Department of Radiation Oncology, The First Hospital of Tsinghua University, Beijing, China
| | - Z Pan
- Department of Radiation Oncology, The First Hospital of Tsinghua University, Beijing, China
| | - W Cai
- United Imaging Research Institute of Innovative Medical Equipment, Shenzhen, China
| | - S M He
- United Imaging Research Institute of Intelligent Imaging, Beijing, China
| | - W Zhang
- Shanghai United Imaging Healthcare Technology Co., Ltd, Shanghai, China
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10
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Yang C, Tang X, Pan Z. [Experimental study on the molluscicidal activity of surfactin against Oncomelania hupensis]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:394-397. [PMID: 37926476 DOI: 10.16250/j.32.1374.2022246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
OBJECTIVE To evaluate the molluscicidal activity of surfactin against Oncomelania hupensis, so as to provide the experimental basis for use of Bacillus for killing O. hupensis. METHODS O. hupensis snails were collected from schistosomiasisendemic foci of Wuhu City on September 2022, and Schistosoma japonicum-infected snails were removed. Then, 60 snails were immersed in surfactin at concentrations of 2, 1, 0.5, 0.25, 0.125 mg/mL and 0.062 5 mg/mL for 24, 48, 72 hours at 26 °C, while ultrapure water-treated snails served as controls. The median lethal concentration (LC50) of surfactin against O. hupensis snails was estimated. O. hupensis snails were immersed in surfactin at a concentration of 24 h LC50 and ultrapure water, and then stained with propidium iodide (PI). The PI uptake in haemocyte was observed in O. hupensis snails using fluorescence microscopy. RESULTS The mortality of O. hupensis was 5.0% following immersion in surfactin at a concentration of 0.062 5 mg/mL for 24 h, and the mortality was 100.0% following immersion in surfactin at a concentration of 2 mg/mL for 72 h, while no snail mortality was observed in the control group. There were significant differences in the mortality of O. hupensis in each surfactin treatment groups at 24 (χ2 = 180.150, P < 0.05), 48 h (χ2 = 176.786, P < 0.05) and 72 h (χ2 = 216.487, P < 0.05), respectively. The average mortality rates of O. hupensis were 38.9% (140/360), 62.2% (224/360) and 83.3% (300/360) 24, 48 h and 72 h post-immersion in surfactin, respectively (χ2 = 150.264, P < 0.05), and the 24, 48 h and 72 h LC50 values of surfactin were 0.591, 0.191 mg/mL and 0.054 mg/mL against O. hupensis snails. Fluorescence microscopy showed more numbers of haemocytes with PI uptake in 0.5 mg/mL surfactintreated O. hupensis snails than in ultrapure water-treated snails for 24 h, and there was a significant difference in the proportion of PI uptake in haemocytes between surfactin-and ultrapure water-treated snails (χ2 = 6.690, P < 0.05). CONCLUSIONS Surfactin is active against O. hupensis snails, which may be associated with the alteration in the integrity of haemocyte membrane.
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Affiliation(s)
- C Yang
- Department of Microbiology and Immunology, Wannan Medical College, Wuhu, Anhui 241002, China
| | - X Tang
- Department of Microbiology and Immunology, Wannan Medical College, Wuhu, Anhui 241002, China
| | - Z Pan
- Department of Microbiology and Immunology, Wannan Medical College, Wuhu, Anhui 241002, China
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11
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Mo X, Chen X, Pan X, Lu Y, Pan G, Xie J, Pan Z, Li L, Tian H, Li Y. Protective effect of Helianthus annuus seed byproduct extract on ultraviolet radiation-induced injury in skin cells. Photochem Photobiol 2023. [PMID: 37727996 DOI: 10.1111/php.13860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/29/2023] [Accepted: 09/05/2023] [Indexed: 09/21/2023]
Abstract
Helianthus annuus seed byproduct is a residual product obtained after seed oil extraction. The present study investigated the preventive and repair effects of the H. annuus seed byproduct ethanol extract (HSE) on ultraviolet radiation (UVR)-induced injury in human immortalized keratinocytes (HaCaTs) and human skin fibroblasts (HSFs). Results revealed that the total phenolic acid and oligosaccharide content in HSE was >50%. HSE had a stronger preventive effect on UVR-induced injury than the repair effect. Moreover, phenolic acids were the main active component of HSE mediating the preventative effect. In HaCaTs and HSFs, HSE prevented UVR-induced injury by inhibiting excessive ROS production. It reduced the secretion of tumor necrosis TNF-α, IL-1α, IL-1β, IL-6, and IL-8 by inhibiting the level of ROS, thus reducing inflammation-mediated injury to skin cells. In addition, HSE inhibited the expression of various mRNA kinases in the MAPK-ERK/p38/JNK pathway. This downregulated the expression of activator protein-1 (AP-1) mRNA and further reduced the secretion of matrix metalloproteinase (MMP)-1, MMP-3, and MMP-9 as well as reduced UVR-induced injury to the cells. In conclusion, HSE is a broad-spectrum, natural UV filter with high efficiency and low toxicity that has the potential to be used in sunscreen products.
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Affiliation(s)
- Xiaoying Mo
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Xiaochun Chen
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Xiaojiao Pan
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Yantong Lu
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Guangjuan Pan
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Jielan Xie
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Zhenzhen Pan
- Key Laboratory of TCM Extraction and Purification and Quality Analysis (Guangxi University of Chinese Medicine), Education Department of Guangxi Zhuang Autonomous Region, Nanning, China
- National Demonstration Center for Experimental Traditional Chinese Pharmacology (Guangxi University of Chinese Medicine), Nanning, China
| | - Li Li
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Hui Tian
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Yaohua Li
- Key Laboratory of TCM Extraction and Purification and Quality Analysis (Guangxi University of Chinese Medicine), Education Department of Guangxi Zhuang Autonomous Region, Nanning, China
- National Demonstration Center for Experimental Traditional Chinese Pharmacology (Guangxi University of Chinese Medicine), Nanning, China
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12
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Wang PJ, Wang DH, Gao Y, Shou YR, Liu JB, Mei ZS, Cao ZX, Pan Z, Kong DF, Xu SR, Liu ZP, Chen SY, Zhao JR, Geng YX, Zhao YY, Yan XQ, Ma WJ. A versatile control program for positioning and shooting targets in laser-plasma experiments. Rev Sci Instrum 2023; 94:093303. [PMID: 37772947 DOI: 10.1063/5.0158103] [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: 05/15/2023] [Accepted: 09/02/2023] [Indexed: 09/30/2023]
Abstract
We introduce a LabVIEW-based control program that significantly improves the efficiency and flexibility in positioning and shooting solid targets in laser-plasma experiments. The hardware driven by this program incorporates a target positioning subsystem and an imaging subsystem, which enables us to install up to 400 targets for one experimental campaign and precisely adjust them in six freedom degrees. The overall architecture and the working modes of the control program are demonstrated in detail. In addition, we characterized the distributions of target positions of every target holder and simultaneously saved the target images, resulting in a large dataset that can be used to train machine learning models and develop image recognition algorithms. This versatile control system has become an indispensable platform when preparing and conducting laser-plasma experiments.
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Affiliation(s)
- P J Wang
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
- Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, Dresden 01328, Germany
| | - D H Wang
- State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology, Xi'an 710024, China
| | - Y Gao
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Y R Shou
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - J B Liu
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Z S Mei
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Z X Cao
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Z Pan
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - D F Kong
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - S R Xu
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Z P Liu
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - S Y Chen
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - J R Zhao
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Y X Geng
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Y Y Zhao
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - X Q Yan
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
- Beijing Laser Acceleration Innovation Center, Huairou, Beijing 101400, China
- Institute of Guangdong Laser Plasma Technology, Baiyun, Guangzhou 510540, China
| | - W J Ma
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
- Beijing Laser Acceleration Innovation Center, Huairou, Beijing 101400, China
- Institute of Guangdong Laser Plasma Technology, Baiyun, Guangzhou 510540, China
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Li W, Wang Z, Jiang Z, Yan Y, Yao X, Pan Z, Chen L, Wang F, Wang M, Qin Z. MiR-3960 inhibits bladder cancer progression via targeting of DEXI. Biochem Biophys Res Commun 2023; 668:8-18. [PMID: 37230046 DOI: 10.1016/j.bbrc.2023.05.055] [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: 05/14/2023] [Accepted: 05/15/2023] [Indexed: 05/27/2023]
Abstract
PURPOSE MicroRNAs (miRNAs) are dominant cargo in exosomes and act as master regulators of cell function, inhibiting mRNA translation and affecting gene silencing. Some aspects of tissue-specific miRNA transport in bladder cancer (BC) and its role in cancer progression are not fully understood. MATERIALS AND METHODS A microarray was used to identify miRNAs in mouse bladder carcinoma cell line MB49 exosomes. Real-time reverse transcription polymerase chain reaction was used to examine the expression of miRNAs in BC and healthy donor serum. Western blotting and immunohistochemical staining were used to examine the expression of dexamethasone-induced protein (DEXI) in patients with BC. CRISPR-Cas 9 was used to knock out Dexi in MB49, and flow cytometry was performed to test cell proliferation ability and apoptosis under chemotherapy. Human BC organoid culture, miR-3960 transfection, and 293T-exosome-loaded miR-3960 delivery were used to analyze the effect of miR-3960 on BC progression. RESULTS The results showed that miR-3960 levels in BC tissue were positively correlated with patient survival time. Dexi was a major target of miR-3960. Dexi knockout inhibited MB49 cell proliferation and promoted cisplatin- and gemcitabine-induced apoptosis. Transfection of miR-3960 mimic inhibited DEXI expression and organoid growth. In parallel, 293T-exosome-loaded miR-3960 delivery and Dexi knockout significantly inhibited subcutaneous growth of MB49 cells in vivo. CONCLUSION Our results demonstrate the potential role of miR-3960-mediated inhibition of DEXI as a therapeutic strategy against BC.
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Affiliation(s)
- Wenqing Li
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China; Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China.
| | - Zihao Wang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China.
| | - Ziming Jiang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China.
| | - Yan Yan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China.
| | - Xiaohan Yao
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China.
| | - Zhenzhen Pan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China.
| | - Lin Chen
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China.
| | - Fei Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China.
| | - Ming Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China.
| | - Zhihai Qin
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China; Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China.
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14
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Pan Z, Lu JG, Jiang P, Han JL, Chen HL, Han ZW, Liu K, Qian L, Xu RX, Zhang B, Luo JT, Yan Z, Yang ZL, Zhou DJ, Wang PF, Wang C, Li MH, Zhu M. A binary pulsar in a 53-minute orbit. Nature 2023; 620:961-964. [PMID: 37339734 PMCID: PMC10468392 DOI: 10.1038/s41586-023-06308-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 06/12/2023] [Indexed: 06/22/2023]
Abstract
Spider pulsars are neutron stars that have a companion star in a close orbit. The companion star sheds material to the neutron star, spinning it up to millisecond rotation periods, while the orbit shortens to hours. The companion is eventually ablated and destroyed by the pulsar wind and radiation1,2. Spider pulsars are key for studying the evolutionary link between accreting X-ray pulsars and isolated millisecond pulsars, pulsar irradiation effects and the birth of massive neutron stars3-6. Black widow pulsars in extremely compact orbits (as short as 62 minutes7) have companions with masses much smaller than 0.1 M⊙. They may have evolved from redback pulsars with companion masses of about 0.1-0.4 M⊙ and orbital periods of less than 1 day8. If this is true, then there should be a population of millisecond pulsars with moderate-mass companions and very short orbital periods9, but, hitherto, no such system was known. Here we report radio observations of the binary millisecond pulsar PSR J1953+1844 (M71E) that show it to have an orbital period of 53.3 minutes and a companion with a mass of around 0.07 M⊙. It is a faint X-ray source and located 2.5 arcminutes from the centre of the globular cluster M71.
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Affiliation(s)
- Z Pan
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
- Guizhou Radio Astronomical Observatory, Guizhou University, Guiyang, People's Republic of China
- College of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
- Key Laboratory of Radio Astronomy and Technology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J G Lu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
- Guizhou Radio Astronomical Observatory, Guizhou University, Guiyang, People's Republic of China
- College of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
- Key Laboratory of Radio Astronomy and Technology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - P Jiang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China.
- Guizhou Radio Astronomical Observatory, Guizhou University, Guiyang, People's Republic of China.
- College of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China.
- Key Laboratory of Radio Astronomy and Technology, Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - J L Han
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China.
- College of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China.
- Key Laboratory of Radio Astronomy and Technology, Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - H-L Chen
- Yunnan Observatories, Chinese Academy of Sciences, Kunming, People's Republic of China
| | - Z W Han
- Yunnan Observatories, Chinese Academy of Sciences, Kunming, People's Republic of China
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - K Liu
- Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - L Qian
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
- Guizhou Radio Astronomical Observatory, Guizhou University, Guiyang, People's Republic of China
- College of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
- Key Laboratory of Radio Astronomy and Technology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - R X Xu
- Department of Astronomy, Peking University, Beijing, People's Republic of China
- Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing, People's Republic of China
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing, People's Republic of China
| | - B Zhang
- Nevada Center for Astrophysics, University of Nevada, Las Vegas, NV, USA.
- Department of Physics and Astronomy, University of Nevada, Las Vegas, NV, USA.
| | - J T Luo
- National Time Service Center, Chinese Academy of Sciences, Xi'an, China
| | - Z Yan
- College of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
- Key Laboratory of Radio Astronomy and Technology, Chinese Academy of Sciences, Beijing, People's Republic of China
- Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Z L Yang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
- College of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
- Key Laboratory of Radio Astronomy and Technology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - D J Zhou
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
- College of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
- Key Laboratory of Radio Astronomy and Technology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - P F Wang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
- College of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
- Key Laboratory of Radio Astronomy and Technology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - C Wang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
- College of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
- Key Laboratory of Radio Astronomy and Technology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - M H Li
- State Key Laboratory of Public Big Data, Guizhou University, Guiyang, People's Republic of China
| | - M Zhu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
- Guizhou Radio Astronomical Observatory, Guizhou University, Guiyang, People's Republic of China
- College of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
- Key Laboratory of Radio Astronomy and Technology, Chinese Academy of Sciences, Beijing, People's Republic of China
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15
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Pan Z, Li S, Wang Y, Liu H, Gui L, Dong B. [Tumor cell lysate with low content of HMGB1 enhances immune response of dendritic cells against lung cancer in mice]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:906-914. [PMID: 37439162 DOI: 10.12122/j.issn.1673-4254.2023.06.05] [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: 07/14/2023]
Abstract
OBJECTIVE To assess the effect of tumor cell lysate (TCL) with low high-mobility group B1 (HMGB1) content for enhancing immune responses of dendritic cells (DCs) against lung cancer. METHODS TCLs with low HMGB1 content (LH-TCL) and normal HMGB1 content (NH-TCL) were prepared using Lewis lung cancer (LLC) cells in which HMGB1 was inhibited with 30 nmol/L glycyrrhizic acid (GA) and using LLC cells without GA treatment, respectively. Cultured mouse DCs were exposed to different doses of NH-TCL and LH-TCL, using PBS as the control. Flow cytometry was used to detect the expressions of CD11b, CD11c and CD86 and apoptosis of the stimulated DCs, and IL-12 levels in the cell cultures were detected by ELISA. Mouse spleen cells were co-cultured with the stimulated DCs, and the activation of the spleen cells was assessed by detecting CD69 expression using flow cytometry; TNF-β production in the spleen cells was detected with ELISA. The spleen cells were then co-cultured with LLC cells at the effector: target ratios of 5:1, 10:1 and 20:1 to observe the tumor cell killing. In the animal experiment, C57/BL6 mouse models bearing subcutaneous LLC xenograft received multiple injections with the stimulated DCs, and the tumor growth was observed. RESULTS The content of HMGB1 in the TCL prepared using GA-treated LLC cells was significantly reduced (P < 0.01). Compared with NH-TCL, LH-TCL showed a stronger ability to reduce apoptosis (P < 0.001) and promote activation and IL- 12 production in the DCs. Compared with those with NH-TCL stimulation, the DCs stimulated with LH-TCL more effectively induced activation of splenic lymphocytes and enhanced their anti-tumor immunity (P < 0.05). In the cell co-cultures, the spleen lymphocytes activated by LH-TCL-stimulated DCs showed significantly enhanced LLC cell killing activity (P < 0.01). In the tumor-bearing mice, injections of LH-TCL-stimulated DCs effectively activated host anti-tumor immunity and inhibited the growth of the tumor xenografts (P < 0.05). CONCLUSION Stimulation of the DCs with LH-TCL enhances the anti-tumor immune activity of the DCs and improve the efficacy of DCbased immunotherapy for LLC in mice.
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Affiliation(s)
- Z Pan
- Department of Medical Microbiology and Immunology,Wannan Medical College, Wuhu 241002, China
| | - S Li
- Department of Biochemistry,Wannan Medical College, Wuhu 241002, China
| | - Y Wang
- Department of Medical Microbiology and Immunology,Wannan Medical College, Wuhu 241002, China
| | - H Liu
- School of Pharmacy, Wannan Medical College, Wuhu 241002, China
| | - L Gui
- Department of Medical Microbiology and Immunology,Wannan Medical College, Wuhu 241002, China
| | - B Dong
- Department of Medical Microbiology and Immunology,Wannan Medical College, Wuhu 241002, China
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16
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Pan Z, Guo Y, Zhou Q, Wang Q, Pan S, Xu S, Li L. Perfluoroalkyl substance exposure is associated with asthma and innate immune cell count in US adolescents stratified by sex. Environ Sci Pollut Res Int 2023; 30:52535-52548. [PMID: 36840869 DOI: 10.1007/s11356-023-26065-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Exposure to perfluoroalkyl substances (PFAS) may be harmful to humans; however, previous studies have been inconsistent regarding the potential for PFAS-induced immunosuppresion. This study explored the relationship between PFAS exposure and risks of asthma, wheezing, and immunosuppression in 12-19 year-olds using the National Health and Nutrition Examination Survey (NHANES) data. Logistic regression models were used to reveal associations between serum PFAS levels and risks of asthma, wheezing, asthma attack, and emergency department visits. Pearson's correlation was used to determine the relationship between serum PFAS levels and leukocyte count. Data were also stratified by sex. We found that medium-low levels of serum perfluorooctane sulfonate (PFOS) (6.90-12.40 ng/mL) and serum perfluorooctanoic acid (PFOA) (2.43-3.60 ng/mL) were negatively related, respectively, to current asthma and wheezing in boys, and to wheezing in girls. Meanwhile, boys with medium-high levels (1.50-3.00 ng/mL) of serum perfluorohexanesulfonate (PFHxS) had a high risk of wheezing. Among asthmatic participants, both medium-high levels (3.75-5.07 ng/mL) of serum PFOA and high levels (> 3.92 ng/mL) of PFHxS correlated with asthma attacks in boys; likewise, medium-low levels (0.70-0.99 ng/mL) of serum PFNA correlated with asthma attacks in girls. Also, PFOA and PFNA levels were weakly positively correlated with basophil count, whereas PFOS levels were weakly negatively correlated with eosinophils in asthmatic boys, indicating that basophils may be important in the immune response to PFAS exposure among asthmatics.
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Affiliation(s)
- Zhenzhen Pan
- Department of Pediatric Respiratory, Wuxi Children's Hospital affiliated to Jiangnan University, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, China
| | - Yun Guo
- Department of Pediatric Respiratory, Wuxi Children's Hospital affiliated to Jiangnan University, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, China
| | - Qin Zhou
- Department of Pediatric Respiratory, Wuxi Children's Hospital affiliated to Jiangnan University, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, China
| | - Qian Wang
- Department of Pediatric Respiratory, Wuxi Children's Hospital affiliated to Jiangnan University, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, China
| | - Shanshan Pan
- Department of Pediatric Respiratory, Wuxi Children's Hospital affiliated to Jiangnan University, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, China
| | - Shiyao Xu
- Department of Pediatric Respiratory, Wuxi Children's Hospital affiliated to Jiangnan University, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, China
| | - Ling Li
- Department of Pediatric Respiratory, Wuxi Children's Hospital affiliated to Jiangnan University, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, China.
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17
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Pan Z, Wang Q, Guo Y, Xu S, Pan S, Xu S, Zhou Q, Li L. Association of dual electronic cigarettes and marijuana use with sleep duration among adults from the United States, NHANES 2015–2018. Prev Med Rep 2023; 33:102190. [DOI: 10.1016/j.pmedr.2023.102190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
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18
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Cheng Y, Han L, Wu L, Chen J, Sun H, Wen G, Ji Y, Dvorkin M, Shi J, Pan Z, Shi J, Wang X, Bai Y, Melkadze T, Pan Y, Min X, Viguro M, Kang W, Wang Q, Zhu J. LBA9 Updated results of first-line serplulimab versus placebo combined with chemotherapy in extensive-stage small cell lung cancer: An international multicentre phase III study (ASTRUM-005). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
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19
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Pan Z, Gao G, Fu B. Spatiotemporal changes and driving forces of ecosystem vulnerability in the Yangtze River Basin, China: Quantification using habitat-structure-function framework. Sci Total Environ 2022; 835:155494. [PMID: 35483469 DOI: 10.1016/j.scitotenv.2022.155494] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/20/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
Ecosystem vulnerability is the degree to which an ecosystem is susceptible to adverse effects of external disturbances. Exploring the pattern of ecosystem vulnerability and its driving mechanism is important for regional ecological protection and management. A little study has conducted the ecosystem vulnerability assessment from the perspective of multiple ecosystems characteristics, and the spatial heterogeneity impacts of climate change and human activities on ecosystem vulnerability variation need to be further explored. In this study, a habitat-structure-function framework was proposed to evaluate ecosystem vulnerability pattern of the Yangtze River Basin (YRB) in China from 1990 to 2018. Then, the spatial heterogeneity impacts of various factors on ecosystem vulnerability changes were examined utilizing the Geographically Weighted Regression model. Results show that the ecosystem vulnerability index (EVI) pattern in the YRB decreased from upstream to downstream. There was 63.85% of the basin area experiencing a decline in EVI from 1990 to 2018, which was primarily found in the source, southwest and north regions, while the southeast and east regions have suffered an increase in EVI. The impact of climate change on EVI changes increased as time scales increase, while, human activities were still the dominant factor leading EVI changes. Overall, areas with great impact of climate change on EVI variation were concentrated in the source region and upper reaches, while the remarkable impact of human activities occurred in the whole basin. The enhancement of climate warming and humid trend and the strengthen of ecological protection were benefit to the decline of EVI. The proposed framework can be extended to assess vulnerability in other areas or specific ecosystem types, and the findings are expected to provide policy recommendations for ecosystem conservation and management in the YRB.
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Affiliation(s)
- Zhenzhen Pan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Guangyao Gao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Bojie Fu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
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20
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Wang Y, Guo X, Fan X, Zhang H, Xue D, Pan Z. The protective effect of mangiferin on osteoarthritis: An in vitro and in vivo study. Physiol Res 2022; 71:135-145. [PMID: 35043648 PMCID: PMC8997682 DOI: 10.33549/physiolres.934747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 11/02/2021] [Indexed: 11/25/2022] Open
Abstract
Mangiferin is a kind of polyphenol chemical compound separated from these herbal medicines of Mangifera indica L., Anemarrhena asphodeloides Bge. and Belamcanda chinensis L., which has anti-inflammatory, anti-virus, and other physiological activities without toxic effects. Osteoarthritis (OA) is a chronic disease that is also a kind of arthritis disease in which articular cartilage or bones under the joint is damaged. In addition, artificial replacements are required in severe cases. At present, there are not too much researches on the potential biological activities of mangiferin that plays a protective role in the treatment of OA. In this study, we evaluated the protective effect of mangiferin on osteoarthritis (OA) in vitro and in vivo. First, the effect of different concentrations of mangiferin on rat chondrocytes was determined by MTT assay. Second, the effects of mangiferin on the expression levels of matrix metalloproteinase (MMP)-13, TNF alpha, Collagen II, Caspase-3, and cystatin-C in interleukin-1beta (IL-1beta)-induced rat chondrocytes were examined by the real-time polymerase chain reaction in vitro, meanwhile the effects of mangiferin on the nuclear factor kappa-B (NF-kappaB) signaling pathway were also investigated by Western Blot. Finally, the anti-osteoarthritic protective effect of mangiferin was evaluated in the rat model by anterior cruciate ligament transection (ACLT) combined with bilateral ovariectomy-induced OA in vivo. The results showed that the mangiferin was found to inhibit the expression of MMP-13, TNF-alpha, and Caspase-3 which also increased the expression of Collagen II and cystatin-C in IL 1beta induced rat chondrocytes. In addition, IL-1beta-induced activation of nuclear factor kappa-B (NF-kappaB) and the degradation of inhibitor of kappaB (IkappaB)-alpha were suppressed by mangiferin. For the in vivo study in a rat model of OA, 100 microl of mangiferin was administered by intra-articular injections for rats, the results showed that the cartilage degradation was suppressed by mangiferin through Micro CT and Histological Examination. According to both in vitro and in vivo results, mangiferin has a protective effect in the treatment of OA which may be a promising therapeutic agent for OA.
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Affiliation(s)
- Y Wang
- Department of Orthopaedics, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China. and
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21
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Pan Z, Wang K, Wang X, Jia Z, Yang Y, Duan Y, Huang L, Wu ZX, Zhang JY, Ding X. Cholesterol promotes EGFR-TKIs resistance in NSCLC by inducing EGFR/Src/Erk/SP1 signaling-mediated ERRα re-expression. Mol Cancer 2022; 21:77. [PMID: 35303882 PMCID: PMC8932110 DOI: 10.1186/s12943-022-01547-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 02/21/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The use of epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) brings remarkable benefits for the survival of patients with advanced NSCLC harboring EGFR mutations. Unfortunately, acquired resistance seems to be inevitable and limits the application of EGFR-TKIs in clinical practice. This study reported a common molecular mechanism sustaining resistance and potential treatment options to overcome EGFR-TKIs resistance. METHODS EGFR-TKIs resistant NSCLC cells were established and confirmed by MTT assay. Cholesterol content was detected and the promotional function of cholesterol on NSCLC growth was determined in vivo. Then, we identified ERRα expression as the downstream factor of cholesterol-mediated drug resistance. To dissect the regulatory mechanism, we conducted experiments, including immunofluorescence, co-immunoprecipitation, luciferase reporter assay and chromatin immunoprecipitation assay. RESULTS Long-term exposure to EGFR-TKIs generate drug resistance with the characteristic of cholesterol accumulation in lipid rafts, which promotes EGFR and Src to interact and lead EGFR/Src/Erk signaling reactivation-mediated SP1 nuclear translocation and ERRα re-expression. Further investigation identifies ERRα as a target gene of SP1. Functionally, re-expression of ERRα sustains cell proliferation by regulating ROS detoxification process. Lovastatin, a drug used to decrease cholesterol level, and XCT790, an inverse agonist of ERRα, overcome gefitinib and osimertinib resistance both in vitro and in vivo. CONCLUSIONS Our study indicates that cholesterol/EGFR/Src/Erk/SP1 axis-induced ERRα re-expression promotes survival of gefitinib and osimertinib-resistant cancer cells. Besides, we demonstrate the potential of lowing cholesterol and downregulation of ERRα as effective adjuvant treatment of NSCLC.
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Affiliation(s)
- Zhenzhen Pan
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, Jiangsu, China
| | - Kai Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, Jiangsu, China
| | - Xiniao Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, Jiangsu, China
| | - Zhirong Jia
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, Jiangsu, China
| | - Yuqi Yang
- College of Pharmacy and Health Sciences, St. John's University, New York, NY, 11439, USA
| | - Yalei Duan
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, Jiangsu, China
| | - Lianzhan Huang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, Jiangsu, China
| | - Zhuo-Xun Wu
- College of Pharmacy and Health Sciences, St. John's University, New York, NY, 11439, USA
| | - Jian-Ye Zhang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China.
| | - Xuansheng Ding
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, Jiangsu, China.
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22
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Wang J, Teng Y, Zhai Y, Yue W, Pan Z. Spatiotemporal distribution and risk assessment of organophosphorus pesticides in surface water and groundwater on the North China Plain, China. Environ Res 2022; 204:112310. [PMID: 34762928 DOI: 10.1016/j.envres.2021.112310] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/27/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
90 groundwater samples and 14 surface water samples were collected in wet season (summer) and dry season (winter) in the North China Plain (NCP), and analyzed for 11 organophosphorus pesticides (OPPs). The results showed that the main types of OPPs in surface water and groundwater were dimethoate, dichlorvos, methyl-parathion, malathion in both summer and winter. The OPP concentrations in groundwater and surface water were higher in summer than in winter. In the vertical direction, the distribution characteristics of different four types of groundwater sampling points are different. In the horizontal direction: farmland adjacent to a river (FAR) > central farmland (CF) > nonfarm area adjacent to a river (NFAR) > central nonfarm area (CNF). The OPPs concentrations in surface water adjacent to farmland were higher than that in surface water adjacent to nonfarm area. The main factors influencing the distribution of OPPs in the groundwater and surface water were the interaction process between them, the groundwater flow field and the OPPs used in agricultural activities. The ecological risk of OPPs to surface water was greater in summer than in winter. Water Flea was at medium risk, and malathion had the greatest influence on Water Flea in both summer and winter. The non-carcinogenic and carcinogenic risks of the four main OPPs in surface water were higher than in groundwater, and were higher in summer than in winter, but they would not lead to adverse health effects on local residents.
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Affiliation(s)
- Jianwei Wang
- College of Water Sciences, Beijing Normal University, Beijing 100875, China.
| | - Yanguo Teng
- College of Water Sciences, Beijing Normal University, Beijing 100875, China; Engineering Research Center of Groundwater Pollution Control and Remediation Ministry of Education, Beijing 100875, China.
| | - Yuanzheng Zhai
- College of Water Sciences, Beijing Normal University, Beijing 100875, China.
| | - Weifeng Yue
- College of Water Sciences, Beijing Normal University, Beijing 100875, China.
| | - Zhenzhen Pan
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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Luo XL, Lan D, Lin Y, Pan Z, Yang T, Lu R. A two-dimensional framework with U-shaped Cu4I4 Cluster linked by semi-rigid ligand: Synthesis, crystal structure and Luminescent Properties. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fan Z, Li Y, Chen S, Xu L, Tian Y, Cao Y, Pan Z, Zhang X, Chen Y, Ren F. Magnesium Isoglycyrrhizinate Ameliorates Concanavalin A-Induced Liver Injury by Inhibiting Autophagy. Front Pharmacol 2022; 12:794319. [PMID: 35058778 PMCID: PMC8763799 DOI: 10.3389/fphar.2021.794319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/26/2021] [Indexed: 11/13/2022] Open
Abstract
Background and Aims: Acute liver failure (ALF) is a type of liver injury that is caused by multiple factors and leads to severe liver dysfunction; however, current treatments for ALF are insufficient. Magnesium isoglycyrrhizinate (MgIG), a novel glycyrrhizin extracted from the traditional Chinese medicine licorice, has a significant protective effect against concanavalin A (ConA)-induced liver injury, but its underlying therapeutic mechanism is unclear. Hence, this study aims to explore the potential therapeutic mechanism of MgIG against ConA-induced immune liver injury. Methods: ConA (20 mg/kg, i. v.) was administered for 12 h to construct an immune liver injury model, and the treatment group was given MgIG (30 mg/kg, i. p.) injection 1 h in advance. Lethality, liver injury, cytokine levels, and hepatocyte death were evaluated. The level of autophagy was evaluated by electron microscopy, RT-PCR and western blotting, and hepatocyte death was assessed in vitro by flow cytometry. Results: MgIG significantly increased the survival rate of mice and ameliorated severe liver injury mediated by ConA. The decrease in the number of autophagosomes, downregulation of LC3b expression and upregulation of p62 expression indicated that MgIG significantly inhibited ConA-induced autophagy in the liver. Reactivation of autophagy by rapamycin (RAPA) reversed the protective effect of MgIG against ConA-induced liver injury. Compared with MgIG treatment, activation of autophagy by RAPA also promoted the expression of liver inflammation markers (IL-1β, IL-6, TNF-α, CXCL-1, CXCL-2, CXCL-10, etc.) and hepatocyte death. In vitro experiments also showed that MgIG reduced ConA-induced hepatocyte death but did not decrease hepatocyte apoptosis by inhibiting autophagy. Conclusion: MgIG significantly ameliorated ConA-induced immune liver injury in mice by inhibiting autophagy. This study provides theoretical support for the ability of MgIG to protect against liver injury in clinical practice.
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Affiliation(s)
- Zihao Fan
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Yuxian Li
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Sisi Chen
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Ling Xu
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Yuan Tian
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Yaling Cao
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Zhenzhen Pan
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Xiangying Zhang
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Yu Chen
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Feng Ren
- Beijing Youan Hospital, Capital Medical University, Beijing, China
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Guo Y, Gao F, Wang X, Pan Z, Wang Q, Xu S, Pan S, Li L, Zhao D, Qian J. Spontaneous formation of neutrophil extracellular traps is associated with autophagy. Sci Rep 2021; 11:24005. [PMID: 34907287 PMCID: PMC8671464 DOI: 10.1038/s41598-021-03520-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 11/02/2021] [Indexed: 12/17/2022] Open
Abstract
Neutrophils release neutrophil extracellular traps (NETs), via NETosis, as a defense mechanism against pathogens. Neutrophils can release NETs spontaneously; however, the mechanisms underlying spontaneous NETosis remain unclear. Neutrophils isolated from healthy donors were tested for NET formation and autophagy at 1, 6, 12, and 24 h after incubation. Autophagy response was evaluated in response to various autophagy inducers and inhibitors. The relationship between autophagy and NETosis was detected in vivo using an ovalbumin-induced mouse model of asthma. We found that the increase in the proportion of spontaneous NETosis was time-dependent. The number of autophagy-positive cells also increased over time and LC3B protein played an integral role in NET formation. Trehalose (an inducer of mTOR-independent autophagy) treatment significantly increased NET formation, whereas rapamycin (an mTOR-dependent autophagy inducer) did not increase NET release by neutrophils. Compared with the control group, 3-methyladenine (an autophagy sequestration inhibitor) and hydroxychloroquine sulfate (autophagosome-lysosome fusion inhibitor) treatments significantly reduced the percentage of NET-positive cells. In vivo studies on ovalbumin-induced asthma lung sections revealed NETs and LC3B and citH3 proteins were found to co-localize with DNA. Our findings suggest that autophagy plays a crucial role in aging-related spontaneous NETosis.
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Affiliation(s)
- Yun Guo
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, 214023, Jiangsu, China
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing, 210000, Jiangsu, China
| | - Fei Gao
- Department of Intensive Care Unit, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Xin Wang
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing, 210000, Jiangsu, China
| | - Zhenzhen Pan
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, 214023, Jiangsu, China
| | - Qian Wang
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, 214023, Jiangsu, China
| | - Shiyao Xu
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, 214023, Jiangsu, China
| | - Shanshan Pan
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, 214023, Jiangsu, China
| | - Ling Li
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, 214023, Jiangsu, China
| | - Deyu Zhao
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing, 210000, Jiangsu, China.
| | - Jun Qian
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, 214023, Jiangsu, China.
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Kadambi S, Pan Z, Xu H, Kehoe L, Magnuson A, Mohile S, Burnette B, Bradley T, Bearden J, Loh K. Functional status in older adults with cancer, caregiver mastery, and caregiver depression. J Geriatr Oncol 2021. [DOI: 10.1016/s1879-4068(21)00370-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Wang Q, Xiao B, Jiang W, Steele S, Cai J, Pan Z, Zhang X, Ding P. P-187 Watch-and-wait strategy for DNA mismatch repair-deficient/microsatellite instability-high rectal cancer with a clinical complete response after neoadjuvant immunotherapy: An observational cohort study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.242] [Citation(s) in RCA: 1] [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: 11/16/2022] Open
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Huang X, He D, Pan Z, Luo G, Deng J. Reactive-oxygen-species-scavenging nanomaterials for resolving inflammation. Mater Today Bio 2021; 11:100124. [PMID: 34458716 PMCID: PMC8379340 DOI: 10.1016/j.mtbio.2021.100124] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/15/2021] [Accepted: 07/20/2021] [Indexed: 12/11/2022] Open
Abstract
Reactive oxygen species (ROS) mediate multiple physiological functions; however, the over-accumulation of ROS causes premature aging and/or death and is associated with various inflammatory conditions. Nevertheless, there are limited clinical treatment options that are currently available. The good news is that owing to the considerable advances in nanoscience, multiple types of nanomaterials with unique ROS-scavenging abilities that influence the temporospatial dynamic behaviors of ROS in biological systems have been developed. This has led to the emergence of next-generation nanomaterial-controlled strategies aimed at ameliorating ROS-related inflammatory conditions. Accordingly, herein we reviewed recent progress in research on nanotherapy based on ROS scavenging. The underlying mechanisms of the employed nanomaterials are emphasized. Furthermore, important issues in developing cross-disciplinary nanomedicine-based strategies for ROS-based inflammatory conditions are discussed. Our review of this increasing interdisciplinary field will benefit ongoing studies and clinical applications of nanomedicine based on ROS scavenging.
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Affiliation(s)
- X. Huang
- Institute of Burn Research, Southwest Hospital, State Key Lab of Trauma, Burn and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Army Medical University, 400038 Chongqing, China
| | - D. He
- Institute of Burn Research, Southwest Hospital, State Key Lab of Trauma, Burn and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Army Medical University, 400038 Chongqing, China
| | - Z. Pan
- Department of Endocrinology and Nephrology, The Seventh People's Hospital of Chongqing
| | - G. Luo
- Institute of Burn Research, Southwest Hospital, State Key Lab of Trauma, Burn and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Army Medical University, 400038 Chongqing, China
| | - J. Deng
- Institute of Burn Research, Southwest Hospital, State Key Lab of Trauma, Burn and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Army Medical University, 400038 Chongqing, China
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Qin J, Zhang S, Poon L, Pan Z, Luo J, Yu N, Wang L, Wu X, Cheng X, Xie X, Lu Y, LU W. Doppler-based predictive model for methotrexate resistance in low-risk gestational trophoblastic neoplasia with myometrial invasion: prospective study of 147 patients. Ultrasound Obstet Gynecol 2021; 57:829-839. [PMID: 32385928 PMCID: PMC8251727 DOI: 10.1002/uog.22069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 03/30/2020] [Accepted: 04/22/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVES This prospective clinical study aimed to evaluate the vascularization characteristics of low-risk gestational trophoblastic neoplasia (GTN) using Doppler imaging and to develop a predictive model for resistance to methotrexate (MTX). METHODS Patients with low-risk GTN receiving primary MTX treatment were enrolled from the Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China, from September 2012 to August 2018. The primary endpoint was to develop and internally validate a predictive model for resistance to MTX therapy in these patients. In the training set, clinical features and Doppler hemodynamic parameters before MTX therapy were analyzed using logistic regression to identify independent predictors of MTX resistance, which were integrated into the model. The predictive performance of the model was evaluated by leave-one-out cross-validation in the training dataset and internal validation in an independent-sample test dataset. RESULTS The entire imaging protocol was completed by 147 eligible patients, of which 110 comprised the training set and 37 the test set. In the training set, cases with myometrial invasion (81.8%; 90/110) showed vascular-enriched areas in the myometrium and high velocity and low impedance ratios of the uterine artery (UtA) compared to cases without myometrial invasion (18.2%; 20/110). On multivariate logistic regression analysis, time-averaged mean velocity in UtA (UtA-TAmean) and the International Federation of Gynecology and Obstetrics (FIGO) score were identified as independent predictors (P = 0.009 and P = 0.043, respectively) of MTX resistance. The Doppler-based predictive model, developed based on the 90 cases with myometrial invasion, was y = -2.95332 + 0.41696 × FIGO score + 0.03551 × UtA-TAmean. The model showed an area under the curve of 0.757 (95% CI, 0.653-0.862) and the optimal cut-off value was 0.50622, which had 45.2% sensitivity and 96.6% specificity. The model stratified patients with low-risk GTN into low (< 10%), intermediate (10-90%) and high (> 90%) probability of MTX resistance, based on the threshold values of -1.59544 and 0.10046. The model had an accuracy of 74.4% (95% CI, 64.5-82.3%) in the cross-validation and 72.7% (95% CI, 55.8-84.9%) in the internal validation. CONCLUSIONS The Doppler-based predictive model, combining a non-invasive marker of tumor vascularity with the FIGO scoring system, can differentiate cases with low from those with high probability of developing MTX resistance and therefore has the potential to guide treatment options in patients with low-risk GTN and myometrial invasion. © 2020 Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- J. Qin
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's HospitalZhejiang University School of MedicineHangzhouZhejiangChina
- Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang ProvinceHangzhouZhejiangChina
| | - S. Zhang
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's HospitalZhejiang University School of MedicineHangzhouZhejiangChina
- Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang ProvinceHangzhouZhejiangChina
| | - L. Poon
- Department of Obstetrics and GynaecologyThe Chinese University of Hong KongHong Kong SAR
| | - Z. Pan
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's HospitalZhejiang University School of MedicineHangzhouZhejiangChina
- Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang ProvinceHangzhouZhejiangChina
| | - J. Luo
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - N. Yu
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - L. Wang
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - X. Wu
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - X. Cheng
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's HospitalZhejiang University School of MedicineHangzhouZhejiangChina
- Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang ProvinceHangzhouZhejiangChina
| | - X. Xie
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's HospitalZhejiang University School of MedicineHangzhouZhejiangChina
- Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang ProvinceHangzhouZhejiangChina
| | - Y. Lu
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's HospitalZhejiang University School of MedicineHangzhouZhejiangChina
- Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang ProvinceHangzhouZhejiangChina
- Institute of Translational MedicineZhejiang University School of MedicineHangzhouChina
| | - W. LU
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's HospitalZhejiang University School of MedicineHangzhouZhejiangChina
- Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang ProvinceHangzhouZhejiangChina
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Pan Z, Huang M, Huang J, Lin Z, Yao Z. P10.03 Health Insurance Coverage and Racial Disparities in Early-Stage Detection and Treatment of Lung Cancer: A Causal Mediation Analysis. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Guo Y, Gao F, Wang Q, Wang K, Pan S, Pan Z, Xu S, Li L, Zhao D. Differentiation of HL-60 cells in serum-free hematopoietic cell media enhances the production of neutrophil extracellular traps. Exp Ther Med 2021; 21:353. [PMID: 33732326 PMCID: PMC7903455 DOI: 10.3892/etm.2021.9784] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 10/28/2020] [Indexed: 12/13/2022] Open
Abstract
Neutrophil extracellular traps (NETs) are web-like structures made of chromatin and have been identified to have a role in the host's immune defense. Differentiated human promyelocytic leukemia HL-60 cells (dHL-60) have been used to study the mechanisms of NETs formation, as neutrophils have a short lifespan that limits their use. However, dHL-60 cells are inefficient at generating NETs and therefore are not ideal replacements for neutrophils in studying of NET formation. In the present study, the optimal cell culture conditions and differentiation time that result in the most effective release of NETs from dHL-60 cells upon stimulation were determined. HL-60 cells were cultured in serum (FBS) or serum-free (X-VIVO) medium and differentiated using all-trans retinoic acid (ATRA) or dimethyl sulfoxide (DMSO). dHL-60 cells were stimulated with phorbol 12-myristate 13-acetate (PMA) or Ca2+ ionophore (CI). Cell differentiation and apoptosis, as well as the formation of reactive oxygen species (ROS) and citrullinated histone H3 (citH3) were analyzed using flow cytometry. NETs were visualized using fluorescence microscopy and NET quantification was performed using PicoGreen. Induction of HL-60 cells for five days produced the best results in terms of differentiation markers and cell viability. Both ATRA- and DMSO-induced dHL-60 cells were able to release NETs upon PMA and CI stimulation; dHL-60 cells in serum-free medium produced more NETs than those in serum-containing medium. DMSO-dHL-60 (X-VIVO) cells were most efficient at producing NETs and ROS upon stimulation with PMA, while ATRA-dHL-60 (X-VIVO) cells were most efficient at producing NETs and citH3 upon stimulation with CI. It was concluded that DMSO-dHL-60 (X-VIVO) may be a model for the study of ROS-high NETosis and ATRA-dHL-60 (X-VIVO) may be suitable for ROS-low NETosis.
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Affiliation(s)
- Yun Guo
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Fei Gao
- Department of Intensive Care Unit, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Qian Wang
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Kang Wang
- Department of Laboratory, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Shanshan Pan
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Zhenzhen Pan
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Shiyao Xu
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Ling Li
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Deyu Zhao
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
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Li Q, Du X, Liu L, Liu H, Pan Z, Li Q. Upregulation of miR-146b promotes porcine ovarian granulosa cell apoptosis by attenuating CYP19A1. Domest Anim Endocrinol 2021; 74:106509. [PMID: 32653739 DOI: 10.1016/j.domaniend.2020.106509] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 06/04/2020] [Accepted: 06/11/2020] [Indexed: 12/13/2022]
Abstract
MicroRNAs (miRNAs) are 21- to 24-nucleotide long small noncoding RNAs, which play an important role in follicular atresia and granulosa cell (GC) apoptosis in the mammalian ovary. Here, we report that miR-146b, a conserved and ovary-enriched miRNA, modulates estradiol (E2) secretion, GC apoptosis, and follicular atresia in pigs. Genome-wide analysis and quantitative real-time PCR revealed that miR-146b was significantly upregulated during follicular atresia, and fluorescence-activated cell sorting showed that miR-146b functioned as a proapoptotic factor to induce GC apoptosis. MicroRNA-mRNA network analysis and luciferase reporter assays showed that CYP19A1, the pivotal enzyme for E2 synthesis signaling, was directly targeted by miR-146b. Furthermore, miR-146b interacted with the 3'untranslated region of CYP19A1 to prevent translation, thereby regulating CYP19A1-mediated E2 secretion and GC apoptosis. However, miR-146b was not regulated by the transcription factor SMAD4 or oxidative stress, both of which are critical regulators of CYP19A1. We, thus, conclude that miR-146b is a novel epigenetic factor regulating GC functions, follicular development, and female reproduction.
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Affiliation(s)
- Q Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - X Du
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - L Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - H Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Z Pan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Q Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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Pan Z, Wang GJ, Li W. [Value of ALBI grade on precised estimation liver reserve function of patients with hepatocellular carcinoma]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:1059-1063. [PMID: 34865357 DOI: 10.3760/cma.j.cn501113-20190219-00053] [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
Précised liver reserve function estimation is of great significance for predicting the survival time, post-hepatectomy liver failure and individualized comprehensive treatment strategies in hepatocellular carcinoma (HCC) patients. Currently, the widely used Child-Pugh (CP) classification and indocyanine green 15-minute retention rate (ICGR 15) have certain flaws and limitations. The albumin-bilirubin (ALBI) grading especially makes up for the deficiency of CP classification, and can provide an objective, simple, accurate and evidence-based method to estimate and guide the liver reserve function of HCC patients. This paper follows up and summarizes the research progress of ALBI grading estimation at home and abroad on liver reserve function of HCC patients.
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Affiliation(s)
- Z Pan
- Department of Hepatobiliary-Pancreatic Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - G J Wang
- Department of Hepatobiliary-Pancreatic Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - W Li
- Department of Hepatobiliary-Pancreatic Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
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Wang H, Chen W, Sinumvayabo N, Li Y, Han Z, Tian J, Ma Q, Pan Z, Geng Z, Yang S, Kang M, Rahman SU, Yang G, Zhang Y. Phosphorus deficiency induces root proliferation and Cd absorption but inhibits Cd tolerance and Cd translocation in roots of Populus × euramericana. Ecotoxicol Environ Saf 2020; 204:111148. [PMID: 32818843 DOI: 10.1016/j.ecoenv.2020.111148] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 08/03/2020] [Accepted: 08/07/2020] [Indexed: 06/11/2023]
Abstract
To disclose how phosphorus deficiency influence phytoremediation of Cd contamination using poplars, root architecture, Cd absorption, Cd translocation and antioxidant defense in poplar roots were investigated using a clone of Populus × euramericana. Root growth was unaltered by Cd exposure regardless of P conditions, while the degree of root proliferation upon P deficiency was changed by high level of Cd exposure. The concentration and content of Cd accumulation in roots were increased by P deficiency. This can be partially explained by the increased expression of genes encoding PM H + -ATPase under the combined conditions of P deficiency and high Cd exposure, which enhanced Cd2+-H+ exchanges and led to an increment of Cd uptake under P deficiency. Despite of the increasing Cd accumulation in roots, the translocation of Cd from roots to aerial tissues sharply decreased upon P deficiency. The relative expression of genes responsible for Cd translocation (HMA4) decreased upon P deficiency and thus inhibited Cd translocation via xylem. GR activity was decreased by P deficiency, which can inhibit the form of GSH and GSH-Cd complexes and decrease Cd translocation via GSH-Cd complexes. The transportation of PC-Cd complexes into vacuole decreased under P deficiency as a result of the low expression of PCS and ABCC1, and thus suppressed Cd tolerance and Cd detoxification in roots. Moreover, P deficiency decreased the levels of antioxidase (GR and CAT) and phytohormones including JA, ABA and GA3, which synchronously reduced antioxidant capacity in roots.
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Affiliation(s)
- Hao Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Wenyi Chen
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Narcisse Sinumvayabo
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Yunfei Li
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Zixuan Han
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Jing Tian
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Qin Ma
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Zhenzhen Pan
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Zhaojun Geng
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Siqi Yang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Mingming Kang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Siddiq Ur Rahman
- Department of Computer Science and Bioinformatics, Khushal Khan Khattak University, Karak, Khyber Pakhtunkhwa, 27200, Pakistan
| | - Guijuan Yang
- Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China.
| | - Yi Zhang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, PR China.
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Pan Z, Huang M, Huang J, Yao Z. The association between napping and the risk of cardiovascular disease and all-cause mortality: a systematic review and dose-response meta-analysis. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Napping is a habit prevalent worldwide and occurs from an early age. Some sleep specialists have suggested it as a potential public health tool due to the prevalence of sleep disorder. However, the association between napping and the risk of cardiovascular disease (CVD) and all-cause mortality remains unclear.
Purpose
To assess the association between napping and the risk of CVD and all-cause mortality.
Methods
We conducted a systematic search of Medline, Embase and Cochrane databases from inception through December 2019 for prospective cohort studies investigating the association between napping and the risk of CVD and/or all-cause mortality. Overall estimates were calculated using random effect models with inverse variance weighting. Dose-response meta-analysis was performed using restricted cubic spline models. The results were reported as hazard ratio (HR) and 95% confidence interval (CI).
Results
A total of 313651 participants (57.8% female, 38.9% took naps) from 20 cohort studies were included in the analysis. Overall, pooled analysis detected no association between daytime nap and CVD (HR 1.13, 95% CI 0.99–1.28). However, in subgroup analysis including only participants who were female (HR 1.31, 95% CI 1.09–1.58), older (age>65 years) (HR 1.36, 95% CI 1.07–1.72), or took a longer nap (nap time>60 minutes) (HR 1.34, 95% CI 1.05–1.63), napping was significantly associated with a higher risk of CVD comparing to not napping. All-cause mortality was associated with napping overall (HR 1.19, 95% CI 1.12–1.26), and effect sizes were even more pronounced in females (HR 1.22, 95% CI 1.13–1.31), older participants (HR 1.27, 95% CI 1.11–1.45) and those who took a long nap (HR 1.30, 95% CI 1.12–1.47). Furthermore, after stratifying participants by night sleep time (<6 and >6h/day), no significant association was detected except those who slept >6h/day at night and took a long nap (HR 1.13, 95% CI 1.03–1.24). Dose-response analysis showed a J-curve relation between nap time and CVD (Figure 1). The HR decreased from 0 to 25 min/day, followed by a sharp increase in the risk at longer times. A positive linear relationship between nap time and all-cause mortality was also observed.
Conclusion
Long napping over 60 minutes per day is associated with increased risks of CVD and all-cause mortality. Night sleep duration may play a role in the relation between napping and all-cause mortality. Further, large-scale prospective cohort studies need to confirm our conclusion and investigate the underlying mechanisms driving these associations.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- Z Pan
- No.1 Hospital of Guangzhou Medical College, Guangzhou, China
| | - M Huang
- No.1 Hospital of Guangzhou Medical College, Guangzhou, China
| | - J Huang
- No.1 Hospital of Guangzhou Medical College, Guangzhou, China
| | - Z Yao
- No.1 Hospital of Guangzhou Medical College, Guangzhou, China
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Wang Q, Zhang R, Xiao W, Zhang S, Wei M, Li Y, Chang H, Xie W, Li L, Ding P, Wu X, Lu Z, Cheng G, Zeng Z, Pan Z, Wang W, Wan X, Gao Y, Xu R. Watch-and-wait Strategy against Surgical Resection for Rectal Cancer Patients with Complete Clinical Response after Neoadjuvant Chemoradiotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Pan Z, Zhang X, Hui Y, Xiang H, Wang Q, Xu S, Li L. Sex Difference Between Trace Elements and Pulmonary Functions in Children. Biol Trace Elem Res 2020; 197:405-410. [PMID: 32060730 DOI: 10.1007/s12011-019-02019-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Accepted: 12/16/2019] [Indexed: 12/12/2022]
Abstract
It has been defined that deficiency of trace elements plays an important role in the progression of asthma. However, the relationship between blood zinc (Zn), selenium (Se), and magnesium (Mg) and pulmonary functions in children remains to be clarified. A cross-sectional study was conducted in Wuxi, China, and a total of 202 healthy children were recruited. The forced vital capacity volume (FVC) and forced expiratory volume in the 1 s (FEV1) were measured. Blood samples were collected, and the levels of blood zinc, selenium, and magnesium were measured by inductively coupled plasma mass spectrometry (ICP-MS). Meanwhile, the concentrations of serum total IgE was also determined. The associations between trace elements and pulmonary functions were analyzed by multiple linear regression models. After stratified by sex, there was a positive association between blood Zn and pulmonary functions in boys. In addition, blood Zn was also negatively associated with serum total IgE concentrations in boys, but not in girls after adjusting for potential confounders. Our findings indicated that zinc deficiency was significantly related to children's pulmonary functions and that screening of trace elements may be a potential solution to decrease the risks of asthma in children.
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Affiliation(s)
- Zhenzhen Pan
- Department of Pediatric Respiratory, Wuxi Children's Hospital, Wuxi, 214023, Jiangsu Province, People's Republic of China
| | - Xiaojuan Zhang
- Department of Pediatric Respiratory, Wuxi Children's Hospital, Wuxi, 214023, Jiangsu Province, People's Republic of China
| | - Yu Hui
- Department of Pediatric Respiratory, Wuxi Children's Hospital, Wuxi, 214023, Jiangsu Province, People's Republic of China
| | - Hongxia Xiang
- Department of Pediatric Respiratory, Wuxi Children's Hospital, Wuxi, 214023, Jiangsu Province, People's Republic of China
| | - Qian Wang
- Department of Pediatric Respiratory, Wuxi Children's Hospital, Wuxi, 214023, Jiangsu Province, People's Republic of China
| | - Shiyao Xu
- Department of Pediatric Respiratory, Wuxi Children's Hospital, Wuxi, 214023, Jiangsu Province, People's Republic of China
| | - Ling Li
- Department of pediatric respiratory, Wuxi children's hospital, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, People's Republic of China.
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Pan Z, Chen Q, Zheng X, Wang K, Duan Y, Xiao K, Jia Z, Ding X. JuBei Oral Liquid Induces Mitochondria-Mediated Apoptosis in NSCLC Cells. Onco Targets Ther 2020; 13:7585-7598. [PMID: 32821122 PMCID: PMC7423349 DOI: 10.2147/ott.s254464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 07/10/2020] [Indexed: 12/24/2022] Open
Abstract
Background Although gefitinib brings about tremendous advances in the treatment of non-small cell lung cancer (NSCLC) harboring epidermal growth factor receptor (EGFR) mutations, most of patients become incurable due to drug resistance. JuBei oral liquid (JB) has been widely used to treat pneumonia in clinic. Components of JB were reported to induce apoptosis in NSCLC, which indicated that JB could be a potential antitumor agent for NSCLC patients. In this study, we investigated the effect of JB on gefitinib-sensitive PC-9 and gefitinib-resistant PC-9/GR, H1975 cells as well as its underlying molecular mechanisms. Methods PC-9, PC-9/GR and H1975 cells were treated with JB, LY294002, SCH772984, gefitinib alone or in combination. Then, cell viability, colony formation, cell death, expression of mitochondria-dependent pathway proteins, expression of EGFR, PI3K/AKT, MAPK signal pathway proteins, Bcl-2 mitochondrial translocation, ROS generation and cell apoptosis were examined by MTT, colony forming, live/dead cell staining, Western blot, immunofluorescence and flow cytometry assay. Results Our results showed that JB significantly induced cell growth inhibition and apoptotic cell death in PC-9, PC-9/GR and H1975 cells. JB activated mitochondria-mediated apoptotic pathway through inhibiting Bcl-2 mitochondrial translocation while inducing Bax translocated into mitochondria along with accumulated ROS production, thereby increasing the release of cytochrome c, subsequently cleaving procaspase9 into cleaved-caspase9 and then cleaving procaspase3 into cleaved-caspase3. Furthermore, the employment of protein kinase inhibitors LY294002 and SCH772984 revealed that the induction of mitochondria-mediated apoptosis by JB was reliant on inactivation of PI3K/AKT and MAPK signal pathways. Moreover, JB could synergize with gefitinib to induce apoptosis in PC-9, PC-9/GR and H1975 cells. Conclusion These data indicated that JB could be a potential therapeutic agent for NSCLC patients harboring EGFR mutations as well as those under gefitinib resistance.
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Affiliation(s)
- Zhenzhen Pan
- Department of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
| | - Qiufang Chen
- Department of Science and Education, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen 361003, People's Republic of China
| | - Xiulan Zheng
- Department of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
| | - Kai Wang
- Department of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
| | - Yalei Duan
- Department of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
| | - Kang Xiao
- Department of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
| | - Zhirong Jia
- Department of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
| | - Xuansheng Ding
- Department of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
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Jia Z, Zhang Y, Yan A, Wang M, Han Q, Wang K, Wang J, Qiao C, Pan Z, Chen C, Hu D, Ding X. 1,25-dihydroxyvitamin D3 signaling-induced decreases in IRX4 inhibits NANOG-mediated cancer stem-like properties and gefitinib resistance in NSCLC cells. Cell Death Dis 2020; 11:670. [PMID: 32820157 PMCID: PMC7441324 DOI: 10.1038/s41419-020-02908-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 02/23/2020] [Revised: 07/29/2020] [Accepted: 07/29/2020] [Indexed: 11/24/2022]
Abstract
Recent studies have demonstrated that acquisition of cancer stem-like properties plays an essential role in promoting epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) resistance in non-small cell lung cancer (NSCLC); however, how to regulate cancer stem-like properties and EGFR-TKI resistance is largely unclear. In this study, we discovered that increased iroquois-class homeodomain protein 4 (IRX4) was related to gefitinib resistance in NSCLC cells. Knockdown of IRX4 inhibited cell proliferation, sphere formation, and the expression of CD133, ALDH1A1, NANOG, Sox2 and Notch1, and the transcriptional activity of NANOG promoter. IRX4 overexpression increased the protein level of NANOG and CD133 in PC-9 cells. Combination of knocking-down IRX4 with gefitinib increased cell apoptosis and decreased cell viability and the expression of p-EGFR and NANOG in PC-9/GR cells. IRX4 knockdown in a PC-9/GR xenograft tumor model inhibited tumor progression and the expression of NANOG and CD133 more effectively than single treatment alone. Knockdown of NANOG inhibited the expression of CD133 and restored gefitinib cytotoxicity, and NANOG overexpression-induced cancer stem-like properties and gefitinib resistance could be obviously reversed by knocking-down IRX4. Further, we found that 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) reduced obviously the expression of IRX4 and NANOG by inhibiting the activation of TGF-β1/Smad3 signaling pathway; moreover, combination of 1,25(OH)2D3 and gefitinib decreased cell viability and proliferation or tumor progression and the expression of IRX4 and NANOG compared with single treatment alone both in PC-9/GR cells and in a PC-9/GR xenograft tumor model. These results reveal that inhibition of IRX4-mediated cancer stem-like properties by regulating 1,25(OH)2D3 signaling may increase gefitinib cytotoxicity. Combination therapy of gefitinib and 1,25(OH)2D3 by targeting IRX4 and NANOG, could provide a promising strategy to improve gefitinib cytotoxicity.
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Affiliation(s)
- Zhirong Jia
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 211198, Nanjing, China
| | - Yameng Zhang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 211198, Nanjing, China
| | - Aiwen Yan
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 211198, Nanjing, China
| | - Meisa Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 211198, Nanjing, China
| | - Qiushuang Han
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 211198, Nanjing, China
| | - Kaiwei Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 211198, Nanjing, China
| | - Jie Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 211198, Nanjing, China.,Department of Pharmacy, the First Affiliated Hospital of Xinjiang Medical University, 830054, Urumqi, China
| | - Chen Qiao
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 211198, Nanjing, China.,Precision Medicine Laboratory, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 211198, Nanjing, China
| | - Zhenzhen Pan
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 211198, Nanjing, China
| | - Chuansheng Chen
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 211198, Nanjing, China
| | - Dong Hu
- Key Laboratory of Industrial Dust Prevention and Control & Occupational Safety and Health of the Ministry of Education, Medical School, Anhui University of Science and Technology, 232001, Huainan, China.
| | - Xuansheng Ding
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 211198, Nanjing, China. .,Precision Medicine Laboratory, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 211198, Nanjing, China.
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Wang K, Zheng X, Pan Z, Yao W, Gao X, Wang X, Ding X. Icariin Prevents Extracellular Matrix Accumulation and Ameliorates Experimental Diabetic Kidney Disease by Inhibiting Oxidative Stress via GPER Mediated p62-Dependent Keap1 Degradation and Nrf2 Activation. Front Cell Dev Biol 2020; 8:559. [PMID: 32766240 PMCID: PMC7379398 DOI: 10.3389/fcell.2020.00559] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 06/11/2020] [Indexed: 12/14/2022] Open
Abstract
The present study aimed to determine whether icariin could attenuate type 1 diabetic nephropathy (T1DN) induced by streptozotocin (STZ) after 4 weeks or not. Therefore, its therapeutic effect on diabetic kidney disease was investigated in view of reactive oxygen (ROS) and extracellular matrix (ECM) generation in human glomerular mesangial cells under high glucose. To establish the participation and the key role of GPER and Nrf2 in ECM deposition, a combination of G15 (antagonist of GPER) or siGPER and siNrf2 were performed, respectively. The results showed that T1DN can be significantly inhibited by oral icariin, evidenced by improvement of 24 h urinary volume, 24 h proteinuria, microalbuminuria, and histopathological changes of kidney. Icariin decreased the levels of intracellular superoxide anion, impeded the generation of fibronectin and increased the expression and activity of antioxidant enzymes in the human glomerular mesangial cells treated with high glucose. It acted as a GPER activator, increased dissociation of Nrf2/Keap1 complexes, combination of Keap1/p62 complexes, Nrf2 translocation to nuclear, Nrf2/ARE DNA binding activity, and ARE luciferase reporter gene activity in glomerular mesangial cells. The Nrf2 inhibitor ML385 or siNrf2 obviously abolished extracellular matrix (ECM) generation inhibited by icariin. Furthermore, icariin-induced Nrf2 activation was mainly dependent on p62-mediated Keap1 degradation, which functions as an adaptor protein during autophagy. The GPER antagonist G15 and siGPER obviously abolished the above effects by icariin. Taken together, the present study demonstrated that the therapeutic effects of icariin on type 1 diabetic nephropathy in rats via GPER mediated p62-dependent Keap1 degradation and Nrf2 activation.
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Affiliation(s)
- Kai Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xiulan Zheng
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Zhenzhen Pan
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Wenhui Yao
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xin Gao
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xiniao Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xuansheng Ding
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
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Guo Y, Pan Z, Gao F, Wang Q, Pan S, Xu S, Hui Y, Li L, Qian J. Characteristics and risk factors of children with sleep-disordered breathing in Wuxi, China. BMC Pediatr 2020; 20:310. [PMID: 32590970 PMCID: PMC7318769 DOI: 10.1186/s12887-020-02207-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 06/16/2020] [Indexed: 12/14/2022] Open
Abstract
Background Sleep-disordered breathing (SDB) is a common syndrome in children, related to their immune responses, cardiovascular function, and neurocognitive function. This study aimed to determine the prevalence of SDB among children in Wuxi, China, and to evaluate the protective and risk factors of SDB in children. Methods A cross-sectional study was conducted on children attending different schools across Wuxi, China, aged 3–14 years old. Of a total of 5630 questionnaires distributed to the parents of the children, 3997 (71.0%) were deemed to be valid. The data on the general sociodemographic factors, children’s allergy and sleep characteristics, and the parents’ sleep characteristics were also collected. The Paediatric Sleep Questionnaire (PSQ) score was used to identify children at high risk of SDB. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated by logistic regression. Results The prevalence of SDB in this cohort was 13.4% (N = 534). SDB prevalence significantly differed in children with asthma (28.2% vs. 12.8%, P < 0.001), eczema (19.0% vs. 10.0%, P < 0.001), urticaria (16.4% vs. 12.9%, P < 0.01) and rhinitis (21.4% vs. 10.7%, P < 0.001). No significant differences were found in SDB prevalence with respect to pillow material or quilt material. On multivariate logistic regression analysis, asthma (OR 1.986 (95% CI 1.312–3.007), P < 0.01), eczema (OR 1.675 (95% CI 1.377–2.037), P < 0.001), rhinitis (OR 1.998 (95% CI 1.635–2.441), suffered from familial sleep sickness (OR 2.416 (95% CI 1.975–2.955), P < 0.001) and whose mothers slept for a shorter duration (6 h–8 h: OR 1.370 (95% CI 1.089–1.724), P < 0.01; <6 h: OR 3.385(95% CI 2.098–5.461), P < 0.001) increased the odds of having SDB. The incidence of SDB significantly decreased with children’s age (6–11 years old: 0R 0.768 (95% CI 0.597–0.989), P < 0.05; 12–14 years old: OR 0.691 (95% CI 0.530–0.901), P < 0.01). Conclusion The results of this study demonstrated that atopic diseases (asthma, eczema, and rhinitis) and family sleep habits were risk factors for SDB in children in Wuxi, China.
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Affiliation(s)
- Yun Guo
- Department of Pediatric Respiratory, Wuxi Children's Hospital, Wuxi Clinical Medical College Affiliated to Nanjing Medical University, No.299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China
| | - Zhenzhen Pan
- Department of Pediatric Respiratory, Wuxi Children's Hospital, Wuxi Clinical Medical College Affiliated to Nanjing Medical University, No.299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China
| | - Fei Gao
- Department of Intensive Care Unit, Wuxi People's Hospital, Wuxi Clinical Medical College Affiliated to Nanjing Medical University, No.299 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China
| | - Qian Wang
- Department of Pediatric Respiratory, Wuxi Children's Hospital, Wuxi Clinical Medical College Affiliated to Nanjing Medical University, No.299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China
| | - Shanshan Pan
- Department of Pediatric Respiratory, Wuxi Children's Hospital, Wuxi Clinical Medical College Affiliated to Nanjing Medical University, No.299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China
| | - Shiyao Xu
- Department of Pediatric Respiratory, Wuxi Children's Hospital, Wuxi Clinical Medical College Affiliated to Nanjing Medical University, No.299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China
| | - Yu Hui
- Department of Pediatric Respiratory, Wuxi Children's Hospital, Wuxi Clinical Medical College Affiliated to Nanjing Medical University, No.299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China
| | - Ling Li
- Department of Pediatric Respiratory, Wuxi Children's Hospital, Wuxi Clinical Medical College Affiliated to Nanjing Medical University, No.299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China.
| | - Jun Qian
- Department of Pediatric Respiratory, Wuxi Children's Hospital, Wuxi Clinical Medical College Affiliated to Nanjing Medical University, No.299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China
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Gao M, Chen W, Dong S, Chen Y, Zhang Q, Sun H, Zhang Y, Wu W, Pan Z, Gao S, Lin L, Shen J, Tan L, Wang G, Zhang W. Assessing the impact of drinking water iodine concentrations on the iodine intake of Chinese pregnant women living in areas with restricted iodized salt supply. Eur J Nutr 2020; 60:1023-1030. [PMID: 32577887 DOI: 10.1007/s00394-020-02308-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 06/15/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE The supply of non-iodized salt and the water improvement project have been conducted to reduce the iodine concentration in drinking water in areas with elevated water iodine. We aimed to assess the impact of water iodine concentration (WIC) on the iodine intake of pregnant women in areas with restricted iodized salt supply, and determine the cutoff values of WIC in areas with non-iodized salt supply. METHODS Overall, 534 pregnant women who attended routine antenatal outpatient visits in Zibo Maternal and Child Health Hospital in Gaoqing County were recruited. The 24-h urine iodine excretion (UIE) in 534 samples and the iodine concentration in 534 drinking water samples were estimated. Urinary iodine excretion, daily iodine intake, and daily iodine intake from drinking water (WII) were calculated. The relationship between WIC and daily iodine take was analyzed. RESULTS The median WIC, spot urine iodine concentration (UIC), and 24-h UIE were 17 (6, 226) μg/L, 145 (88, 267) μg/L, and 190 (110, 390) μg/day, respectively. A significant positive correlation was found between WIC and UIE (R2 = 0.265, p < 0.001) and UIC (R2 = 0.261, p < 0.001). The contribution rate of WII to total iodine intake increased from 3.0% in the group with WIC of < 10 μg/L to 45.7% in the group with WIC of 50-99 μg/L. CONCLUSION The iodine content in drinking water is the major iodine source in pregnant women living in high-water iodine areas where iodized salt supply is restricted. The contribution rate of daily iodine intake from drinking water increases with the increase in water iodine concentration.
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Affiliation(s)
- M Gao
- The Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - W Chen
- The Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China.,Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China
| | - S Dong
- The Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Y Chen
- The Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Q Zhang
- The Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - H Sun
- The Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Y Zhang
- The Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - W Wu
- The Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Z Pan
- The Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - S Gao
- The Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - L Lin
- Tianjin Institution of Endocrinology, Tianjin Medical University, Tianjin, China
| | - J Shen
- The Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - L Tan
- The Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - G Wang
- The Center for Disease Control and Prevention of Gaoqing County, Gaoqing, China
| | - W Zhang
- The Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China. .,Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China. .,Department of Healthcare and Medical, Tianjin Medical University General Hospital, Tianjin, China. .,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin, China.
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Nadolski A, Vieira JD, Sobrin JA, Kofman AM, Ade PAR, Ahmed Z, Anderson AJ, Avva JS, Basu Thakur R, Bender AN, Benson BA, Bryant L, Carlstrom JE, Carter FW, Cecil TW, Chang CL, Cheshire JR, Chesmore GE, Cliche JF, Cukierman A, de Haan T, Dierickx M, Ding J, Dutcher D, Everett W, Farwick J, Ferguson KR, Florez L, Foster A, Fu J, Gallicchio J, Gambrel AE, Gardner RW, Groh JC, Guns S, Guyser R, Halverson NW, Harke-Hosemann AH, Harrington NL, Harris RJ, Henning JW, Holzapfel WL, Howe D, Huang N, Irwin KD, Jeong O, Jonas M, Jones A, Korman M, Kovac J, Kubik DL, Kuhlmann S, Kuo CL, Lee AT, Lowitz AE, McMahon J, Meier J, Meyer SS, Michalik D, Montgomery J, Natoli T, Nguyen H, Noble GI, Novosad V, Padin S, Pan Z, Paschos P, Pearson J, Posada CM, Quan W, Rahlin A, Riebel D, Ruhl JE, Sayre JT, Shirokoff E, Smecher G, Stark AA, Stephen J, Story KT, Suzuki A, Tandoi C, Thompson KL, Tucker C, Vanderlinde K, Wang G, Whitehorn N, Yefremenko V, Yoon KW, Young MR. Broadband, millimeter-wave antireflection coatings for large-format, cryogenic aluminum oxide optics. Appl Opt 2020; 59:3285-3295. [PMID: 32400613 DOI: 10.1364/ao.383921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 02/25/2020] [Indexed: 06/11/2023]
Abstract
We present two prescriptions for broadband ($ {\sim} 77 - 252\;{\rm GHz} $), millimeter-wave antireflection coatings for cryogenic, sintered polycrystalline aluminum oxide optics: one for large-format (700 mm diameter) planar and plano-convex elements, the other for densely packed arrays of quasi-optical elements-in our case, 5 mm diameter half-spheres (called "lenslets"). The coatings comprise three layers of commercially available, polytetrafluoroethylene-based, dielectric sheet material. The lenslet coating is molded to fit the 150 mm diameter arrays directly, while the large-diameter lenses are coated using a tiled approach. We review the fabrication processes for both prescriptions, then discuss laboratory measurements of their transmittance and reflectance. In addition, we present the inferred refractive indices and loss tangents for the coating materials and the aluminum oxide substrate. We find that at 150 GHz and 300 K the large-format coating sample achieves $ (97 \pm 2)\% $ transmittance, and the lenslet coating sample achieves $ (94 \pm 3)\% $ transmittance.
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Pan Z, Guo Y, Xiang H, Hui Y, Ju H, Xu S, Li L. Effects of Lead, Mercury, and Cadmium Co-exposure on Children's Pulmonary Function. Biol Trace Elem Res 2020; 194:115-120. [PMID: 31227986 DOI: 10.1007/s12011-019-01772-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 06/04/2019] [Indexed: 01/02/2023]
Abstract
Accumulating evidence has shown that toxic metals exposure can have adverse effects on children, but the effects of blood Pb, Hg, and Cd co-exposure on pulmonary function in children remains to be clarified. This cross-sectional multicenter study was conducted in Wuxi City, China. A total of 221 healthy children free from chronic obstructive pulmonary disease were recruited. The blood samples were collected while blood Pb, Hg, and Cd levels were determined. The forced vital capacity volume (FVC) and forced expiratory volume in the 1 s (FEV1) were measured. The associations between metals concentration and pulmonary function were analyzed by multiple linear regression models. The geometric means of the blood Pb, Hg, and Cd levels in our study were 37.27 μg/L, 1.41 μg/L, and 0.28 μg/L, respectively. After adjusting for age, sex, maternal education, annual family income, fish consumption, and second-hand smoking exposure, only the blood Pb levels were significantly negatively associated with the pulmonary function. In addition, a significantly positive interaction between blood Pb and blood Cd on pulmonary function were also detected. Although causal relationship cannot be confirmed in this study, at least higher levels of Pb in blood are associated with decreased pulmonary parameters in children.
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Affiliation(s)
- Zhenzhen Pan
- Department of Pediatric Respiratory, Wuxi Children's Hospital, No. 299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China
| | - Yun Guo
- Department of Pediatric Respiratory, Wuxi Children's Hospital, No. 299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China
| | - Hongxia Xiang
- Department of Pediatric Respiratory, Wuxi Children's Hospital, No. 299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China
| | - Yu Hui
- Department of Pediatric Respiratory, Wuxi Children's Hospital, No. 299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China
| | - Huili Ju
- Department of Pediatric Respiratory, Wuxi Children's Hospital, No. 299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China
| | - Shiyao Xu
- Department of Pediatric Respiratory, Wuxi Children's Hospital, No. 299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China
| | - Ling Li
- Department of Pediatric Respiratory, Wuxi Children's Hospital, No. 299-1 at Qingyang Road, Liangxi District, 214023, Wuxi, Jiangsu Province, People's Republic of China.
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Bajsa-Hirschel J, Pan Z, Duke SO. Rice momilactone gene cluster: transcriptional response to barnyard grass (Echinochloa crus-galli). Mol Biol Rep 2020; 47:1507-1512. [PMID: 31902054 DOI: 10.1007/s11033-019-05205-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 09/18/2019] [Accepted: 11/21/2019] [Indexed: 11/26/2022]
Abstract
Expression of genes involved in diterpene biosynthesis, especially momilactone and gibberellins (GAs), in rice plants (Oryza sativa L.) in response to barnyard grass (Echinochloa crus-galli) stress was examined. The three analyzed class II diterpene synthases had the highest fold change expression. Transcription patterns of genes for two homologs of momilactone synthases, OsMAS and OsMAS2, suggests their distinct roles in response to the presence of barnyard grass.
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Affiliation(s)
- J Bajsa-Hirschel
- USDA, ARS, Natural Products Utilization Research Unit, University, MS, 38677, USA.
| | - Z Pan
- USDA, ARS, Natural Products Utilization Research Unit, University, MS, 38677, USA
| | - S O Duke
- USDA, ARS, Natural Products Utilization Research Unit, University, MS, 38677, USA
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Pan Z, Wang K, Chen Q, Zheng X, Song Z, Ding X. SFI Enhances Therapeutic Efficiency of Gefitinib: An Insight into Reversal of Resistance to Targeted Therapy in Non-small Cell Lung Cancer Cells. J Cancer 2020; 11:334-344. [PMID: 31897229 PMCID: PMC6930422 DOI: 10.7150/jca.32989] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 09/01/2019] [Indexed: 12/24/2022] Open
Abstract
Background: The clinical application of EGFR tyrosine kinase inhibitors is always accompanied by inevitable drug resistance. However, the mechanism remains elusive. In the present study, we investigate the involvement of MAPK/SREBP1 pathway in NSCLC gefitinib resistance and evaluate the synergistic effects of shenqi fuzheng injection (SFI) and gefitinib on NSCLC cells. Methods: To investigate the MAPK/SREBP1 pathway involved in gefitinib resistance, Western blotting was used to examine p-MEK, p-ERK and SREBP1 expression in PC-9 and PC-9/GR cells, MTT was used on cell proliferation, wound healing assay was used on cell migration. To detect the cooperative effects of SFI and gefitinib, clonogenic assay was used on cell proliferation. Apoptosis assay was analyzed by flow cytometry. Immunofluorescence was used to detect gefitinib binding to EGFR. Western blotting was used to detect whether SFI regulate the resistance to gefitinib via the suppression of MAPK/SREBP1 pathway. Results: Our results showed that MAPK/SREBP1 pathway mediated resistance to gefitinib in NSCLC cells. MAPK pathway was found to directly target SREBP1 and inhibition of SREBP1 increased gefitinib sensitivity. In addition, SFI showed cooperative anti-proliferation and pro-apoptosis impacts on gefitinib resistant cells via down-regulating MAPK/SREBP1 pathway. Moreover, the combination of SFI and gefitinib enhanced gefitinib binding to EGFR resulting in the restoration of sensitivity to gefitinib. Conclusions: Taken together, MAPK/SREBP1 pathway could be regarded as the potential treatment target for overcoming resistance to EGFR-TKIs in NSCLC and adjuvant therapy of SFI could be a potential therapeutic strategy for gefitinib resistant treatment.
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Affiliation(s)
- Zhenzhen Pan
- China Pharmaceutical University, School of Basic Medicine and Clinical Pharmacy, Nanjing, 211198, China
| | - Kai Wang
- China Pharmaceutical University, School of Basic Medicine and Clinical Pharmacy, Nanjing, 211198, China
| | - Qiufang Chen
- Xiamen Maternity and Child Health Care Hospital, Xiamen, 361000, China
| | - Xiulan Zheng
- China Pharmaceutical University, School of Basic Medicine and Clinical Pharmacy, Nanjing, 211198, China
| | - Zhengyu Song
- China Pharmaceutical University, School of Basic Medicine and Clinical Pharmacy, Nanjing, 211198, China
| | - Xuansheng Ding
- China Pharmaceutical University, School of Basic Medicine and Clinical Pharmacy, Nanjing, 211198, China
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Tang B, Yang C, Hu S, Sun W, Pan Z, Li L, Wang J. Molecular Characterization of Goose Phosphoenolpyruvate Carboxylase Kinase 1 (Pepck) Gene and Its Potential Role in Hepatic Steatosis Induced by Overfeeding. Braz J Poult Sci 2020. [DOI: 10.1590/1806-9061-2019-1128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- B Tang
- Sichuan Agricultural University, China
| | - C Yang
- Sichuan Animal Science Academy, P.R. China
| | - S Hu
- Sichuan Agricultural University, China
| | - W Sun
- Sichuan Agricultural University, China
| | - Z Pan
- Sichuan Agricultural University, China
| | - L Li
- Sichuan Agricultural University, China
| | - J Wang
- Sichuan Agricultural University, China
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Yu D, Hu J, Sheng Z, Fu G, Wang Y, Chen Y, Pan Z, Zhang X, Wu Y, Sun H, Dai J, Lu L, Ouyang H. Dual roles of misshapen/NIK-related kinase (MINK1) in osteoarthritis subtypes through the activation of TGFβ signaling. Osteoarthritis Cartilage 2020; 28:112-121. [PMID: 31647983 DOI: 10.1016/j.joca.2019.09.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 08/27/2019] [Accepted: 09/12/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To identify the role of misshapen/NIK-related kinase (MINK1) in age-related Osteoarthritis (OA) and injury-induced OA, and the effects of enhanced TGFβ signaling in these progresses. DESIGN The effect of MINK1 was analyzed with MINK1 knock out (Mink1-/-) mice and C57BL/6J mice. OA progress was studied in age-related OA and instability-associated OA (destabilization of the medial meniscus, DMM) models. The murine knee joint was evaluated through histological staining, Osteoarthritis Research Society International (OARSI) scores, immunohistochemistry, and μCT analysis. Primary chondrocytes were isolated from wild type and Mink1-/- mice and subjected to osteogenic induction and Western blot analysis. RESULTS MINK1 is highly expressed during cartilage development and in normal cartilage. Mink1-/- mice displayed markedly lower OARSI scores, aggrecan degradation neoepitope positive cells and increased Safranin O and pSMAD2 staining in aging-related OA model. However, in injury-induced OA, loss of MINK1 accelerates extracellular matrix (ECM) destruction, osteophyte formation, and subchondral bone sclerosis. Accelerated subchondral bone remodeling in Mink1-/- mice was accompanied with increased numbers of nestin-positive mesenchymal stem cells (MSCs) and osterix-positive osteoprogenitors. pSMAD2 staining was increased in the subchondral bone marrow of Mink1-/- mice and overexpression of MINK1 inhibited SMAD2 phosphorylation in vitro. CONCLUSIONS This study shows for the first time that activation of TGFβ/SMAD2 by MINK1 deficiency plays opposite roles in aging-related and injury-induced OA. MINK1 deficiency protects cartilage from degeneration in aging joints through increased SMAD2 activation in chondrocytes, while accelerating OA progress in injury-induced model through enhanced osteogenesis of MSCs in the subchondral bone. These findings provide insights for developing precision OA therapeutics targeting TGFβ/SMAD2 signaling.
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Affiliation(s)
- D Yu
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University school of medicine, Zhejiang University, Hangzhou 310058, China; Department of Orthopedics, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, China
| | - J Hu
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University school of medicine, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, School of Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Z Sheng
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University school of medicine, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, School of Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - G Fu
- Institute of Immunology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Y Wang
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University school of medicine, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, School of Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Y Chen
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University school of medicine, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, School of Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Z Pan
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University school of medicine, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, School of Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - X Zhang
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University school of medicine, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, School of Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Y Wu
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University school of medicine, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, School of Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - H Sun
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University school of medicine, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, School of Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - J Dai
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University school of medicine, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, School of Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - L Lu
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University school of medicine, Zhejiang University, Hangzhou 310058, China; Institute of Immunology, Zhejiang University School of Medicine, Hangzhou 310058, China.
| | - H Ouyang
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University school of medicine, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, School of Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China; Zhejiang University - University of Edinburgh Institute, Zhejiang University School of Medicine, Hangzhou, 310058, China; Department of Sports Medicine, School of Medicine, Zhejiang University, Hangzhou, China; China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, China.
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Zhou Y, Su P, Pan Z, Liu D, Niu Y, Zhu W, Yao P, Song Y, Sun Y. Combination Therapy With Hyperbaric Oxygen and Erythropoietin Inhibits Neuronal Apoptosis and Improves Recovery in Rats With Spinal Cord Injury. Phys Ther 2019; 99:1679-1689. [PMID: 31504911 DOI: 10.1093/ptj/pzz125] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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] [Received: 09/02/2019] [Revised: 01/03/2019] [Accepted: 04/20/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Apoptosis plays an important role in various diseases, including spinal cord injury (SCI). Hyperbaric oxygen (HBO) and erythropoietin (EPO) promote the recovery from SCI, but the relationship between apoptosis and the combination therapeutic effect is not completely clear. OBJECTIVE The purpose of this study was to investigate the effects of HBO and EPO on SCI and the mechanisms that underlie their therapeutic benefits. DESIGN The study was designed to explore the effects of HBO and EPO on SCI through a randomized controlled trial. METHODS Sixty young developing female Sprague-Dawley rats were randomly divided into groups of 12 rats receiving sham, SCI, HBO, EPO, or HBO plus EPO. The SCI model was modified with the Allen method to better control consistency. HBO was performed for 1 hour per day for a total of 21 days, and EPO was given once per week for a total of 3 weeks. Both methods were performed 2 hours after SCI. Locomotor function was evaluated with the 21-point Basso-Beattie-Bresnahan Locomotor Rating Scale, an inclined-plane test, and a footprint analysis. All genes were detected by Western blotting and immunohistochemistry. The level of cell apoptosis was determined by Hoechst staining. RESULTS The results showed that HBO and EPO promoted the recovery of locomotor function in the hind limbs of rats by inhibiting the apoptosis of neurons. During this period, the expression of B-cell lymphoma/leukemia 2 protein (Bcl-2) increased significantly, whereas the expression of Bcl-2-associated X protein (Bax) and cleaved caspase 3 decreased significantly, indicating the inhibition of apoptosis. Meanwhile, the expression of G protein-coupled receptor 17 decreased, and that of myelin basic protein increased, suggesting that there may be a potential connection between demyelination and neuronal apoptosis. LIMITATIONS The limitations of the study include deviations in the preparation of SCI models; lack of reverse validation of molecular mechanisms; absence of in vitro cell experiments; and only one time point after SCI was studied. CONCLUSIONS HBO and EPO treatments are beneficial for SCI, especially when the 2 therapies are combined.
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Affiliation(s)
- Yue Zhou
- Department of Orthopedics, Shaoxing People's Hospital, Shaoxing, China; Department of Orthopedics and The Experimental Center, The Second Affiliated Hospital of Soochow University, Suzhou, China.,Department of Orthopedics, The Second Affiliated Hospital of Soochow University
| | - Peng Su
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University
| | - Zhenzhen Pan
- Department of Radiology, People's Hospital of Changshan, Quzhou, China
| | - Dong Liu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University
| | - Yanping Niu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University
| | - Weiqing Zhu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University
| | - Pengfei Yao
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University
| | - Yue Song
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University
| | - Yongming Sun
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou 215004, China
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Zhang L, Guan Z, Pan Z, Ge H, Zhou D, Xu J, Zhang W. Functional expression of the Spodoptera exigua chitinase to examine the virtually screened inhibitor candidates. Bull Entomol Res 2019; 109:741-751. [PMID: 31113496 DOI: 10.1017/s0007485319000191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Chitinase is responsible for insect chitin hydrolyzation, which is a key process in insect molting and pupation. However, little is known about the chitinase of Spodoptera exigua (SeChi). In this study, based on the SeChi gene (ADI24346) identified in our laboratory, we constructed the recombinant baculovirus P-Chi for the expression of recombinant SeChi (rSeChi) in Hi5 cells. The rSeChi was purified by chelate affinity chromatography, and the purified protein showed activity comparable with that of a commercial SgChi, suggesting that we harvested active SeChi for the first time. The purified protein was subsequently tested for enzymatic properties and revealed to exhibit its highest activity at pH 8 and 40 C. Using homology modeling and molecular docking techniques, the three-dimensional model of SeChi was constructed and screened for inhibitors. In two rounds of screening, twenty compounds were selected. With the purified rSeChi, we tested each of the twenty compounds for inhibitor activity against rSeChi, and seven compounds showed obvious activity. This study provided new information for the chitinase of beet armyworm and for chitinase inhibitor development.
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Affiliation(s)
- L Zhang
- State Key Laboratory of Biocontrol and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Z Guan
- State Key Laboratory of Biocontrol and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Z Pan
- State Key Laboratory of Biocontrol and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - H Ge
- Medical College, Qingdao University, No. 38 Dengzhou Road, Qingdao 266021, China
| | - D Zhou
- Guangdong Provincial Key Laboratory of New Technology in Rice Breeding, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - J Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - W Zhang
- State Key Laboratory of Biocontrol and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
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