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Zhang J, Wang Y, Wurjihu S, Ruan H, Huang Y, Guo M, Kong D, Luo J, Yang M. Comprehensive analysis of neonicotinoids in Chinese commercial honey and pollen: A corresponding health risk assessment for non-targeted organisms. Sci Total Environ 2024; 919:170937. [PMID: 38360305 DOI: 10.1016/j.scitotenv.2024.170937] [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: 12/26/2023] [Revised: 02/09/2024] [Accepted: 02/10/2024] [Indexed: 02/17/2024]
Abstract
Neonicotinoids are broad-spectrum and highly effective insecticides that work by affecting neural activity in insects. Neonicotinoids are systemic pesticides that are absorbed by plants, transported, and accumulated in plant tissues, including nectar and pollen. Currently, there is a lack of a comprehensive assessment of the level of neonicotinoid contamination and the associated health risks to non-targeted organisms in commercial honey and pollen produced in China. This study collected 160 batches of honey and 26 batches of pollen from different regions and plant sources in China, analyzed the residue patterns of neonicotinoid pesticides, and comprehensively evaluated the exposure risks to non-targeted organisms including bees (adults and larvae) and humans. Furthermore, this study addresses this imperative by establishing a high-throughput, rapid, and ultra-sensitive indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) based on broad-spectrum monoclonal antibodies to detect and quantify neonicotinoids, with validation conducted using the LC-MS/MS method. The findings indicated that 59.4 % of honey samples contained at least one of eight neonicotinoids, and the ic-ELISA rapid detection and calculation method could detect all the samples containing neonicotinoids. Additionally, the dietary risk assessment for humans and honeybees indicates that the consumption of a specific quantity of honey may not pose a health risk to human due to neonicotinoid intake. However, the Risk Quotient values for imidacloprid to adult bees and bee larvae, as well as clothianidin to bee larvae, were determined to be 2.22, 5.03, and 1.01, respectively-each exceeding 1. This highlights the elevated risk of acute toxicity posed by imidacloprid and clothianidin residues to honey bees. The study bears significant implications for the safety evaluation of non-targeted organisms in the natural food chain. Moreover, it provides scientific guidance for protecting the diversity and health of the ecosystem.
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Affiliation(s)
- Jing Zhang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Yunyun Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Shanbaga Wurjihu
- Plastic Surgery Hospital and Institute, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100144, China
| | - Haonan Ruan
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Ying Huang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Mengyue Guo
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Dandan Kong
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Jiaoyang Luo
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
| | - Meihua Yang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou 570311, China.
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Kong D, Qian Y, Yu B, Hu Z, Cheng C, Wang Y, Fang Z, Yu J, Xiang S, Cao L, He Y. Interaction of human dendritic cell receptor DEC205/CD205 with keratins. J Biol Chem 2024; 300:105699. [PMID: 38301891 PMCID: PMC10914487 DOI: 10.1016/j.jbc.2024.105699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 01/18/2024] [Accepted: 01/21/2024] [Indexed: 02/03/2024] Open
Abstract
DEC205 (CD205) is one of the major endocytic receptors on dendritic cells and has been widely used as a receptor target in immune therapies. It has been shown that DEC205 can recognize dead cells through keratins in a pH-dependent manner. However, the mechanism underlying the interaction between DEC205 and keratins remains unclear. Here we determine the crystal structures of an N-terminal fragment of human DEC205 (CysR∼CTLD3). The structural data show that DEC205 shares similar overall features with the other mannose receptor family members such as the mannose receptor and Endo180, but the individual domains of DEC205 in the crystal structure exhibit distinct structural features that may lead to specific ligand binding properties of the molecule. Among them, CTLD3 of DEC205 adopts a unique fold of CTLD, which may correlate with the binding of keratins. Furthermore, we examine the interaction of DEC205 with keratins by mutagenesis and biochemical assays based on the structural information and identify an XGGGX motif on keratins that can be recognized by DEC205, thereby providing insights into the interaction between DEC205 and keratins. Overall, these findings not only improve the understanding of the diverse ligand specificities of the mannose receptor family members at the molecular level but may also give clues for the interactions of keratins with their binding partners in the corresponding pathways.
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Affiliation(s)
- Dandan Kong
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuanying Qian
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bowen Yu
- Department of Immunology, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Zhenzheng Hu
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen Cheng
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuanyuan Wang
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhen Fang
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Yu
- Department of Biochemistry and Molecular Biology, Key Laboratory of Immune Microenvironment and Disease, Tianjin Medical University, Tianjin, China
| | - Song Xiang
- Department of Biochemistry and Molecular Biology, Key Laboratory of Immune Microenvironment and Disease, Tianjin Medical University, Tianjin, China
| | - Longxing Cao
- School of Life Science, Westlake University, Hangzhou, Zhejiang, China
| | - Yongning He
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory for Cancer Systems Regulation and Clinical Translation, Shanghai, China; Department of Biliary-Pancreatic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Guo M, Zhang J, Wang Y, Chen H, Lv J, Kong D, Jin Z, Ke T, Zhang H, Luo J, Yang M. Determination of mycobiota and aflatoxin contamination in commercial bee pollen from eight provinces and one autonomous region of China. Int J Food Microbiol 2024; 411:110511. [PMID: 38043476 DOI: 10.1016/j.ijfoodmicro.2023.110511] [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: 08/20/2023] [Revised: 11/22/2023] [Accepted: 11/25/2023] [Indexed: 12/05/2023]
Abstract
The co-occurrence of fungi and mycotoxins in various foods has been frequently reported in many countries, posing a serious threat to the health and safety of consumers. In this study, the mycobiota in five types of commercial bee pollen samples from China were first revealed by DNA metabarcoding. Meanwhile, the content of total aflatoxins in each sample was investigated by high-performance liquid chromatography with fluorescence detection. The results demonstrated that Cladosporium (0.16 %-89.29 %) was the most prevalent genus in bee pollen, followed by Metschnikowia (0-81.12 %), unclassified genus in the phylum Ascomycota (0-81.13 %), Kodamaea (0-73.57 %), and Penicillium (0-36.13 %). Meanwhile, none of the assayed aflatoxins were determined in the 18 batches of bee pollen samples. In addition, the fungal diversity, community composition, and trophic mode varied significantly among five groups. This study provides comprehensive information for better understanding the fungal communities and aflatoxin residues in bee pollen from different floral origins in China.
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Affiliation(s)
- Mengyue Guo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Jing Zhang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Yunyun Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Hubiao Chen
- School of Chinese Medicine, Hong Kong Baptist University, 999077, Hong Kong, China
| | - Jianxin Lv
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Dandan Kong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Ziyue Jin
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Tongwei Ke
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Hongkun Zhang
- Sichuan Haoyun Pharmaceutical Co., Ltd., Guangyuan 628000, China
| | - Jiaoyang Luo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
| | - Meihua Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; NMPA Key Laboratory for Quality Control of Traditional Chinese Medicine (Chinese Materia Medica and Prepared Slices), Lanzhou 730070, China.
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Feng Y, Li F, Wang J, Xu L, Kong D, Sun W, Shi X, Li W, Wu Q, Zhang Y, Dai C. Risk Factors for Locoregional Recurrence and Distant Metastasis in 143 Patients with Adenoid Cystic Carcinoma of the External Auditory Canal. Clin Oncol (R Coll Radiol) 2024; 36:e40-e50. [PMID: 37872041 DOI: 10.1016/j.clon.2023.10.001] [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: 11/22/2022] [Revised: 08/22/2023] [Accepted: 10/02/2023] [Indexed: 10/25/2023]
Abstract
AIMS Adenoid cystic carcinoma (ACC) grows slowly and is characterised by potential recurrence and metastasis to distant organs. This study aimed to evaluate the risk factors for locoregional recurrence (LRR) and distant metastasis in patients with ACC of the external auditory canal (EAC). MATERIALS AND METHODS Demographic, pathological, therapeutic and survival data of 143 patients with EAC ACC were reviewed in this study. Univariate and multivariate Cox proportional hazard regression analyses were carried out to determine the risk factors for LRR and distant metastasis. Factors associated with overall survival after LRR and distant metastasis were also analysed. RESULTS During a median follow-up of 49 months, 31 of 143 patients were observed with LRR and 34 developed distant metastasis. Bone invasion and histological subtype were independent risk factors for locoregional recurrence-free survival. T stage and LRR were independent risk factors for distant metastasis-free survival. Salvage surgery and adjuvant radiotherapy or chemoradiotherapy for LRR resulted in better survival, whereas extrapulmonary metastasis and LRR were associated with a higher risk of poor survival after distant metastasis. CONCLUSION Patients with distant metastases, especially those with LRR, are at significant risk of poor prognosis. Our findings emphasise the importance of long-term regular follow-up and recommend surgical intervention with radiotherapy for recurrent EAC ACC.
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Affiliation(s)
- Y Feng
- Department of Otology and Skull Base Surgery, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China; Key Laboratory of Hearing Medicine, Ministry of Health, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China; Department of Otolaryngology, Head and Neck Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - F Li
- Department of Otology and Skull Base Surgery, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China; Key Laboratory of Hearing Medicine, Ministry of Health, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China
| | - J Wang
- Department of Otology and Skull Base Surgery, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China; Key Laboratory of Hearing Medicine, Ministry of Health, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China
| | - L Xu
- Department of Pathology, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China
| | - D Kong
- Department of Otology and Skull Base Surgery, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China; Key Laboratory of Hearing Medicine, Ministry of Health, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China
| | - W Sun
- Department of Otology and Skull Base Surgery, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China; Key Laboratory of Hearing Medicine, Ministry of Health, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China; Department of Otolaryngology, Chongqing General Hospital, Chongqing, China
| | - X Shi
- Department of Otology and Skull Base Surgery, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China; Key Laboratory of Hearing Medicine, Ministry of Health, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China
| | - W Li
- Department of Otology and Skull Base Surgery, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China; Key Laboratory of Hearing Medicine, Ministry of Health, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Q Wu
- Department of Otology and Skull Base Surgery, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China; Key Laboratory of Hearing Medicine, Ministry of Health, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Y Zhang
- Department of Otology and Skull Base Surgery, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China; Key Laboratory of Hearing Medicine, Ministry of Health, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China.
| | - C Dai
- Department of Otology and Skull Base Surgery, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China; Key Laboratory of Hearing Medicine, Ministry of Health, Eye and Ear, Nose and Throat Hospital, Fudan University, Shanghai, China.
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Shi Y, Kong D, Li W, Wei Y, Wei X, Qu F, Zhang Y, Nie P, Feng X, He Y. A novel ratiometric fluorescent probe for sensitive detection of jasmonic acid in crops. Anal Chim Acta 2023; 1244:340844. [PMID: 36737147 DOI: 10.1016/j.aca.2023.340844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/15/2022] [Accepted: 01/15/2023] [Indexed: 01/19/2023]
Abstract
Herein, a novel ratiometric fluorescent probe was proposed for sensitive detection of jasmonic acid (JA) based on NCQDs@Co-MOFs@MIPs. The prepared NCQDs, with uniquely dual-emissive performance, are insensitive to JA due to electrostatic repulsion. Interestingly, the introduction of Co-MOFs not only avoided the self-aggregation of NCQDs, but changed the surface charge of NCQDs and triggered the response of NCQDs to JA. More importantly, the imprinted recognition sites from MIPs provided "key-lock" structures to specifically capture JA molecules, greatly improving the selectivity of the probe to JA. Under the synergistic actions of Co-MOFs and MIPs, JA can interact with NCQDs through photo-induced electron transfer (PET), resulting in the changes on emission intensity of the probe at Em = 367 nm and 442 nm. Based on the observations, the quantification of JA was realized in the range of 1-800 ng/mL with the limit of detection (LOD) of 0.35 ng/mL. In addition, the probe was used for detecting JA in rice with satisfactory analysis results, indicating the probe holds great potential for monitoring JA levels in crops. Overall, this strategy provides new insights into the construction of practical probes for sensitive detection of plant hormones in crops.
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Affiliation(s)
- Yongqiang Shi
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Dandan Kong
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Wenting Li
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, China
| | - Yuzhen Wei
- School of Information Engineering, Huzhou University, Huzhou, Zhejiang, 313000, China
| | - Xiao Wei
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Fangfang Qu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Yahui Zhang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Pengcheng Nie
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Xuping Feng
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Yong He
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Huanan Industrial Technology Research Institute of Zhejiang University, Guangzhou, Guangdong, 510700, China.
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Sui M, Kong D, Ruan H, Sun X, Gu W, Guo M, Ding S, Yang M. Distribution Characteristics of Nutritional Elements and Combined Health Risk of Heavy Metals in Medicinal Tea from Genuine Producing Area of China. Biol Trace Elem Res 2023; 201:984-994. [PMID: 35294744 DOI: 10.1007/s12011-022-03173-y] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/20/2022] [Indexed: 01/21/2023]
Abstract
The development of the medicinal tea (MT) system has promoted the health awareness in the whole world, and the nutritional elements are also an important resource of health care delivery except for the medicinal components. Among various medicinal teas, Astragalus membranaceus (AM), Zingiberaceae rhizome (ZR), and Lonicera japonica (LJ) were the most popular ingredients in China. However, except for the nutrition value, MT was inevitably contaminated with heavy metals due to the special planting environment and processing system. This study was aimed to investigate the distribution characteristics of nutrition elements and combined health risk of heavy metals in MT sample, referring to the maximum residue limit (MRL), estimated daily intake (EDI), total target hazard quotients (TTHQs), and lifetime cancer risk (LCR). Furthermore, the bioaccessibility of gastrointestinal phase and bioavailability of human colon adeno carcinoma cell line were selected for elaborating the exact damage degree to human digestive system. The results showed that, the nutritional elements of Na, Se, K, Ca, and Mn were very rich in MT, but a total of 50% of MT were contaminated by Cr, Hg, and Cd in raw material. Although the cumulative lifetime cancer risk can be accepted under the bioaccessibility (26.62-99.27%), the heavy metals of Cr, As, Hg, and Fe in AM and LJ posed a slight threaten of non-carcinogenic risk to consumers. This study will give an exactly assessment of multiple elements in digestive system, thus further to predict the potential health risk under the consumption of MT products.
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Affiliation(s)
- Ming Sui
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, People's Republic of China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, People's Republic of China
| | - Dandan Kong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, People's Republic of China.
| | - Haonan Ruan
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, People's Republic of China
| | - Xinqi Sun
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, People's Republic of China
| | - Wei Gu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, People's Republic of China
| | - Mengyue Guo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, People's Republic of China
| | - Shumin Ding
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, People's Republic of China.
| | - Meihua Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, People's Republic of China.
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Qiu R, Zhao Y, Kong D, Wu N, He Y. Development and comparison of classification models on VIS-NIR hyperspectral imaging spectra for qualitative detection of the Staphylococcus aureus in fresh chicken breast. Spectrochim Acta A Mol Biomol Spectrosc 2023; 285:121838. [PMID: 36108407 DOI: 10.1016/j.saa.2022.121838] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/26/2022] [Accepted: 09/02/2022] [Indexed: 06/15/2023]
Abstract
Chicken is at risk of contaminated foodborne pathogens in the production process. Timely and nondestructive detection of foodborne pathogens in chicken is essential for food security. The study aims to explore the feasibility of developing efficient classification models for qualitative detection of Staphylococcus aureus in chicken breast using the hyperspectral imaging technique. Principal component analysis was used to process the full spectral information and three wavelength selection methods (competitive adaptive reweighted sampling, genetic algorithm, and successive projections algorithm) were applied to extract effective wavelengths. These methods were combined with the support vector machine algorithm to develop conventional classification models, respectively. In addition, a convolutional neural network model based on deep learning was designed and trained for comparison. The performance of the convolutional neural network model was significantly better than that of conventional classification models. The overall accuracy for chicken sample classifications was improved from 83.88% to 91.38%. The results demonstrated that deep learning can effectively extract spectral features and promote the application of hyperspectral imaging in foodborne pathogens detection of chicken products.
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Affiliation(s)
- Ruicheng Qiu
- College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China; College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture and Rural Affairs, Hangzhou 310058, China
| | - Yinglei Zhao
- Institute of Agricultural Equipment, Zhejiang Academy of Agricultural Sciences, Hangzhou 310000, China
| | - Dandan Kong
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture and Rural Affairs, Hangzhou 310058, China
| | - Na Wu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture and Rural Affairs, Hangzhou 310058, China
| | - Yong He
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture and Rural Affairs, Hangzhou 310058, China.
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Guo M, zhang J, Lv J, Ke T, Tian J, Miao K, Wang Y, Kong D, Ruan H, Luo J, Yang M. Development of broad-specific monoclonal antibody-based immunoassays for simultaneous ochratoxin screening in medicinal and edible herbs. Food Control 2023. [DOI: 10.1016/j.foodcont.2023.109626] [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: 01/15/2023]
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9
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Kong D, Wang G, Tang Y, Guo M, Ul Haq Khan Z, Guo Y, Gu W, Ma Y, Sui M, Li J, Yang M. Potential health risk of areca nut consumption: Hazardous effect of toxic alkaloids and aflatoxins on human digestive system. Food Res Int 2022; 162:112012. [DOI: 10.1016/j.foodres.2022.112012] [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: 04/30/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 11/04/2022]
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Saha S, Kong D, Athan E, Thursky K, Mazza D. 66: GPPAS MODEL: GUIDING THE IMPLEMENTATION OF ANTIMICROBIAL STEWARDSHIP IN PRIMARY CARE UTILISING COLLABORATION BETWEEN GENERAL PRACTITIONERS AND PHARMACISTS. J Glob Antimicrob Resist 2022. [DOI: 10.1016/s2213-7165(22)00345-9] [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: 12/23/2022] Open
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Yang Z, Gao J, Zhang X, Wu G, Deng W, Liu Y, Zhang J, Chen G, Xu R, Han J, Li A, Liu G, Sun Y, Kong D, Bai Z, Yao H, Zhang Z. 47P Safety and efficacy evaluation of long-course neoadjuvant chemoradiotherapy plus tislelizumab followed by total mesorectal excision for locally advanced rectal cancer: Intermediate results of a multicenter, phase II study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.079] [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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Ma X, Qi W, Du Y, Kong D, Geng Y, Zeng L. 1258P HJM-353: A potent, selective and orally bioavailable EED inhibitor with robust anti-tumor activities. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1376] [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] Open
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13
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Shan WL, Kong D, Zhang H, Zhang JD, Duan SF, Guo LL. [Clinical value of a differentiation prediction model for invasive lung adenocarcinoma]. Zhonghua Zhong Liu Za Zhi 2022; 44:767-775. [PMID: 35880343 DOI: 10.3760/cma.j.cn112152-20200102-00002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the value of predicting the degree of differentiation of pulmonary invasive adenocarcinoma (IAC) based on CT image radiomics model and the expression difference of immunohistochemical factors between different degrees of differentiation of lesions. Methods: The clinicopathological data of patients with pulmonary IAC confirmed by surgical pathology in the Affiliated Huai'an First People's Hospital to Nanjing Medical University from December 2017 to September 2018 were collected. High-throughput feature acquisition was performed for all outlined regions of interest, and prediction models were constructed after dimensionality reduction by the minimum absolute shrinkage operator. Receiver operating characteristic curve was used to assess the predictive efficacy of clinical characteristic model, radiomics model and individualized prediction model combined with both to identify the degree of pulmonary IAC differentiation, and immunohistochemical expressions of Ki-67, NapsinA and TTF-1 were compared between groups with different degrees of IAC differentiation using rank sum test. Results: A total of 396 high-throughput features were extracted from all IAC lesions, and 10 features with high generalization ability and correlation with the degree of IAC differentiation were screened. The mean radiomics score of poorly differentiated IAC in the training group (1.206) was higher than that of patients with high and medium differentiation (0.969, P=0.001), and the mean radiomics score of poorly differentiated IAC in the test group (1.545) was higher than that of patients with high and medium differentiation (-0.815, P<0.001). The differences in gender (P<0.001), pleural stretch sign (P=0.005), and burr sign (P=0.033) were statistically significant between patients in the well and poorly differentiated IAC groups. Multifactorial logistic regression analysis showed that gender and pleural stretch sign were related to the degree of IAC differentiation (P<0.05). The clinical feature model consisted of age, gender, pleural stretch sign, burr sign, tumor vessel sign, and vacuolar sign, and the individualized prediction model consisted of gender, pleural stretch sign, and radiomic score, and was represented by a nomogram. The Akaike information standard values of the radiomics model, clinical feature model and individualized prediction model were 54.756, 82.214 and 53.282, respectively. The individualized prediction model was most effective in identifying the degree of differentiation of pulmonary IAC, and the area under the curves (AUC) of the individualized prediction model in the training group and the test group were 0.92 (95% CI: 0.86-0.99) and 0.88 (95% CI: 0.74-1.00, respectively). The AUCs of the radiomics group model for predicting the degree of differentiation of pulmonary IAC in the training group and the test group were 0.91 (95% CI: 0.83-0.98) and 0.87 (95% CI: 0.72-1.00), respectively. The AUCs of the clinical characteristics model for predicting the degree of differentiation of pulmonary IACs in the training and test groups were 0.75 (95% CI: 0.63-0.86) and 0.76 (95% CI: 0.59-0.94), respectively. The expression level of Ki-67 in poorly differentiated IAC was higher than that in well-differentiated IAC (P<0.001). The expression levels of NapsinA, TTF-1 in poorly differentiated IAC were higher than those in well-differentiated IAC (P<0.05). Conclusions: Individualized prediction model consisted of gender, pleural stretch sign and radiomics score can discriminate the differentiation degree of IAC with the best performance in comparison with clinical feature model and radiomics model. Ki-67, NapsinA and TTF-1 express differently in different degrees of differentiation of IAC.
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Affiliation(s)
- W L Shan
- Department of Radiology, the Affiliated Huai'an First People's Hospital of Nanjing Medical University, Huai'an 223300, China
| | - D Kong
- Department of Radiology, the Affiliated Huai'an First People's Hospital of Nanjing Medical University, Huai'an 223300, China
| | - H Zhang
- Department of Radiology, the Affiliated Huai'an First People's Hospital of Nanjing Medical University, Huai'an 223300, China
| | - J D Zhang
- Department of Radiology, the Affiliated Huai'an First People's Hospital of Nanjing Medical University, Huai'an 223300, China
| | - S F Duan
- GE Healthcare China, Shanghai 210000, China
| | - L L Guo
- Department of Radiology, the Affiliated Huai'an First People's Hospital of Nanjing Medical University, Huai'an 223300, China
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14
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Kong D, Sun D, Qiu R, Zhang W, Liu Y, He Y. Rapid and nondestructive detection of marine fishmeal adulteration by hyperspectral imaging and machine learning. Spectrochim Acta A Mol Biomol Spectrosc 2022; 273:120990. [PMID: 35183858 DOI: 10.1016/j.saa.2022.120990] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 01/26/2022] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
Pure fishmeal (PFM) from whole marine-origin fish is an expensive and indispensable protein ingredient in most aquaculture feeds. In China, the supply shortage of domestically produced PFM has caused frequent PFM adulteration with low-cost protein sources such as feather meal (FTM) and fishmeal from by-products (FBP). The aim of this study was to develop a rapid and nondestructive detection method using near-infrared hyperspectral imaging (NIR-HSI) combined with machine learning algorithms for the identification of PFM adulterated with FTM, FBP, and the binary adulterant (composed of FTM and FBP). A hierarchical modelling strategy was adopted to acquire a better classification accuracy. Partial least squares discriminant analysis (PLS-DA) and support vector machine (SVM) coupled with four spectral preprocessing methods were employed to construct classification models. The SVM with baseline offset (BO-SVM) model using 20 effective wavelengths selected by successive projections algorithm (SPA) and competitive adaptive reweighted sampling (CARS) achieved classification accuracy of 100% and 99.43% for discriminating PFM from the adulterants (FTM, FBP) and adulterated fishmeal (AFM), respectively. This study confirmed that NIR-HSI offered a promising technique for feed mills to identify AFM containing FTM, FBP, or binary adulterants.
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Affiliation(s)
- Dandan Kong
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture and Rural Affairs, Hangzhou 310058, China
| | - Dawei Sun
- Institute of Agricultural Equipment, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Ruicheng Qiu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture and Rural Affairs, Hangzhou 310058, China
| | - Wenkai Zhang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture and Rural Affairs, Hangzhou 310058, China
| | - Yufei Liu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture and Rural Affairs, Hangzhou 310058, China
| | - Yong He
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture and Rural Affairs, Hangzhou 310058, China.
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Kong D, Shi Y, Sun D, Zhou L, Zhang W, Qiu R, He Y. Hyperspectral imaging coupled with CNN: A powerful approach for quantitative identification of feather meal and fish by-product meal adulterated in marine fishmeal. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107517] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kong D, Li X, Tang Y, Sui M, Li J, Ma Y, Wang G, Gu W, Guo X, Yang M. A highly parallel DTT/MB-DNA/Au electrochemical biosensor for trace Hg monitoring by using configuration occupation approach and SECM. Ecotoxicol Environ Saf 2022; 234:113391. [PMID: 35286957 DOI: 10.1016/j.ecoenv.2022.113391] [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: 08/20/2021] [Revised: 02/22/2022] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
Environmental pollution and medicine safety have aroused increasing public concerns due to human health. Amongst various contaminants, mercury is of special attention owing to their environmental persistence and biogeochemical recycling and ecological risks. Herein, a simple and highly parallel electrochemical biosensor for Hg determination was designed and investigated. The proposed biosensor was prepared and compared between (1) DTT/MB-DNA/Au with configuration occupation approach and (2) MCH/MB-DNA/Au with passivation approach. According to the combined results of scanning electrochemical microscope (SECM) and Randles-Sevcik equation, the DTT modified electrode exhibited high uniformity on DNA distribution and superb stability on electron transfer in Hg2+ detection. Evidentially, the response value of proposed DTT/MB-DNA/Au was increased from 57.518% to 97.607%, while RSD% between duplicate runs had dropped from 22.658% to 0.223% (n = 3). Moreover, the increased proportion of effective working area was 467.380% compared with general sensors. Besides, DTT concentration, DNA concentration as well as assembly time were optimized, utilizing electrochemical impedance spectroscopy (EIS), Cyclic Voltammetry (CV) and Square Wave Anode Stripping Voltammetry (SWASV). This optimized biosensor exhibited an excellent selectivity toward Hg2+ over Cu2+, As2+, Cd2+, Pb2+, Cr3+, Ni2+ and Zn2+ etc., and the stability of DTT/MB-DNA/Au were at least two times better even after 3 days under room temperature. Also, a linear relation was observed between the peak current and Hg2+concentrations in a range from 0.25 nM to 2.00 μM with a detection limit of 53.00 pM under optimal conditions. Finally, DTT/MB-DNA/Au was applied for plants and medical products analysis. In all, this optimized DTT/MB-DNA/Au with advantages of high repeatability and sensitivity would provide a new insight into the design and application of biosensor for reliable sensing in safeguarding plant protection and medicinal safety.
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Affiliation(s)
- Dandan Kong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China.
| | - Xinyue Li
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Yang Tang
- Institute of Applied Electrochemistry, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Ming Sui
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Jinping Li
- Academy of Plateau Science and Sustainability, Qinghai Normal University / Key Laboratory of medicinal animal and plant resources of Qinghai Tibet Plateau, Xining, Qinghai 810008, PR China
| | - Yonggui Ma
- Academy of Plateau Science and Sustainability, Qinghai Normal University / Key Laboratory of medicinal animal and plant resources of Qinghai Tibet Plateau, Xining, Qinghai 810008, PR China
| | - Gaofeng Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China; Academy of Plateau Science and Sustainability, Qinghai Normal University / Key Laboratory of medicinal animal and plant resources of Qinghai Tibet Plateau, Xining, Qinghai 810008, PR China
| | - Wei Gu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China; Academy of Plateau Science and Sustainability, Qinghai Normal University / Key Laboratory of medicinal animal and plant resources of Qinghai Tibet Plateau, Xining, Qinghai 810008, PR China
| | - Xuegang Guo
- Academy of Plateau Science and Sustainability, Qinghai Normal University / Key Laboratory of medicinal animal and plant resources of Qinghai Tibet Plateau, Xining, Qinghai 810008, PR China
| | - Meihua Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China.
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Wei X, Kong D, Zhu S, Li S, Zhou S, Wu W. Rapid Identification of Soybean Varieties by Terahertz Frequency-Domain Spectroscopy and Grey Wolf Optimizer-Support Vector Machine. Front Plant Sci 2022; 13:823865. [PMID: 35360340 PMCID: PMC8963758 DOI: 10.3389/fpls.2022.823865] [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] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
Different soybean varieties vary greatly in their nutritional value and composition. Screening for superior varieties is also essential for the development of the soybean seed industry. The objective of the paper was to analyze the feasibility of terahertz (THz) frequency-domain spectroscopy and chemometrics for soybean variety identification. Meanwhile, a grey wolf optimizer-support vector machine (GWO-SVM) soybean variety identification model was proposed. Firstly, the THz frequency-domain spectra of experimental samples (6 varieties, 270 in total) were collected. Principal component analysis (PCA) was used to analyze the THz spectra. After that, 203 samples from the calibration set were used to establish a soybean variety identification model. Finally, 67 samples from the test set were used for prediction validation. The experimental results demonstrated that THz frequency-domain spectroscopy combined with GWO-SVM could quickly and accurately identify soybean varieties. Compared with discriminant partial least squares (DPLS) and particles swarm optimization support vector machine, GWO-SVM combined with the second derivative could establish a better soybean variety identification model. The overall correct identification rate of its prediction set was 97.01%.
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Affiliation(s)
- Xiao Wei
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- College of Engineering and Technology, Southwest University, Chongqing, China
| | - Dandan Kong
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Shiping Zhu
- College of Engineering and Technology, Southwest University, Chongqing, China
| | - Song Li
- College of Engineering and Technology, Southwest University, Chongqing, China
| | - Shengling Zhou
- College of Engineering and Technology, Southwest University, Chongqing, China
| | - Weiji Wu
- China Tianjin Grain and Oil Wholesale Trade Market, Tianjin, China
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Shao C, Wang R, Kong D, Gao Q, Xu C. Identification of potential core genes in gastric cancer using bioinformatics analysis. J Gastrointest Oncol 2021; 12:2109-2122. [PMID: 34790378 DOI: 10.21037/jgo-21-628] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 10/21/2021] [Indexed: 12/23/2022] Open
Abstract
Background Gastric cancer is the third leading cause of cancer-related mortality in China. Most patients with gastric cancer have no obvious early symptoms; thus, many of them are in the middle and late stages of gastric cancer at first diagnosis and miss the best treatment opportunity. Molecular targeted therapy is particularly important in changing this status quo. Methods Three microarray datasets (GSE29272, GSE33651, and GSE54129) were selected from the Gene Expression Omnibus (GEO) database. Differentially expressed genes (DEGs) were screened using GEO2R. The Database for Annotation, Visualization and Integrated Discovery (DAVID) was used to analyze the functional features of these DEGs and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment. The protein-protein interaction (PPI) of these DEGs was visualized by Cytoscape software. The expressions of hub genes were evaluated based on Gene Expression Profiling Interactive Analysis (GEPIA). Moreover, we used the online Kaplan-Meier plotter survival analysis tool to evaluate the prognostic values of hub genes. The Target Scan database was used to predict microRNAs that could regulate the target gene, collagen type IV alpha 1 chain (COL4A1). The OncomiR database was used to analyze the expression levels of three microRNAs, as well as the relationships with tumor stage, grade, and prognosis. Results We identified 78 DEGs, including 53 upregulated genes and 25 downregulated genes. The DEGs were mainly enriched in extracellular matrix organization, extracellular structure organization, and response to wounding. Moreover, three KEGG pathways were markedly enriched, including focal adhesion, complement and coagulation cascades, and extracellular matrix (ECM)-receptor interaction. Among these 78 genes, we selected 10 hub genes. The overexpression levels of these hub genes were closely related to poor prognosis and the development of gastric cancer (except for COL3A1, LOX, and CXCL8). Moreover, we found that microRNA-29a-3p, miR-29b-3p, and miR-29c-3p were the potential microRNAs that could regulate the target gene, COL4A1. Conclusions Our results showed that FN1, COL1A1, TIMP1, COL1A2, SPARC, COL4A1, and SERPINE1 could contribute to the development of novel molecular targets and biomarker-driven treatments for gastric cancer.
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Affiliation(s)
- Changjiang Shao
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Department of Gastroenterology, The Second People's Hospital of Lianyungang City, Lianyungang, China
| | - Rong Wang
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Dandan Kong
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Qian Gao
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Chunfang Xu
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
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Yu B, Kong D, Cheng C, Xiang D, Cao L, Liu Y, He Y. Assembly and recognition of keratins: A structural perspective. Semin Cell Dev Biol 2021; 128:80-89. [PMID: 34654627 DOI: 10.1016/j.semcdb.2021.09.018] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 09/22/2021] [Accepted: 09/29/2021] [Indexed: 12/21/2022]
Abstract
Keratins are one of the major components of cytoskeletal network and assemble into fibrous structures named intermediate filaments (IFs), which are important for maintaining the mechanical properties of cells and tissues. Over the past decades, evidence has shown that the functions of keratins go beyond providing mechanical support for cells, they interact with multiple cellular components and are widely involved in the pathways of cell proliferation, differentiation, motility and death. However, the structural details of keratins and IFs are largely missing and many questions remain regarding the mechanisms of keratin assembly and recognition. Here we briefly review the current structural models and assembly of keratins as well as the interactions of keratins with the binding partners, which may provide a structural view for understanding the mechanisms of keratins in the biological activities and the related diseases.
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Affiliation(s)
- Bowen Yu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Immunology, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Dandan Kong
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen Cheng
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dongxi Xiang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Biliary-Pancreatic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Longxing Cao
- School of Life Science, Westlake University, Hangzhou, Zhejiang, China
| | - Yingbin Liu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Biliary-Pancreatic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yongning He
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Biliary-Pancreatic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China.
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20
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Han B, Li Q, Wang C, Chandrasekaran P, Zhou Y, Qin L, Liu XS, Enomoto-Iwamoto M, Kong D, Iozzo RV, Birk DE, Han L. Differentiated activities of decorin and biglycan in the progression of post-traumatic osteoarthritis. Osteoarthritis Cartilage 2021; 29:1181-1192. [PMID: 33915295 PMCID: PMC8319061 DOI: 10.1016/j.joca.2021.03.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 03/01/2021] [Accepted: 03/19/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To delineate the activities of decorin and biglycan in the progression of post-traumatic osteoarthritis (PTOA). DESIGN Three-month-old inducible biglycan (BgniKO) and decorin/biglycan compound (Dcn/BgniKO) knockout mice were subjected to the destabilization of the medial meniscus (DMM) surgery to induce PTOA. The OA phenotype was evaluated by assessing joint structure and sulfated glycosaminoglycan (sGAG) staining via histology, surface collagen fibril nanostructure and calcium content via scanning electron microscopy, tissue modulus via atomic force microscopy-nanoindentation, as well as subchondral bone structure and meniscus ossification via micro-computed tomography. Outcomes were compared with previous findings in the inducible decorin (DcniKO) knockout mice. RESULTS In the DMM model, BgniKO mice developed similar degree of OA as the control (0.44 [-0.18 1.05] difference in modified Mankin score), different from the more severe OA phenotype observed in DcniKO mice (1.38 [0.91 1.85] difference). Dcn/BgniKO mice exhibited similar histological OA phenotype as DcniKO mice (1.51 [0.97 2.04] difference vs control), including aggravated loss of sGAGs, salient surface fibrillation and formation of osteophyte. Meanwhile, Dcn/BgniKO mice showed further cartilage thinning than DcniKO mice, resulting in the exposure of underlying calcified tissues and aberrantly high surface modulus. BgniKO and Dcn/BgniKO mice developed altered subchondral trabecular bone structure in both Sham and DMM groups, while DcniKO and control mice did not. CONCLUSION In PTOA, decorin plays a more crucial role than biglycan in regulating cartilage degeneration, while biglycan is more important in regulating subchondral bone structure. The two have distinct activities and modest synergy in the pathogenesis of PTOA.
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Affiliation(s)
- B Han
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, 19104, United States
| | - Q Li
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, 19104, United States
| | - C Wang
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, 19104, United States
| | - P Chandrasekaran
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, 19104, United States
| | - Y Zhou
- Department of Statistical Sciences, University of Toronto, Toronto, ON, M5S 3G3, Canada
| | - L Qin
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - X S Liu
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - M Enomoto-Iwamoto
- Department of Orthopaedics, School of Medicine, University of Maryland, Baltimore, MD, 21201, United States
| | - D Kong
- Department of Statistical Sciences, University of Toronto, Toronto, ON, M5S 3G3, Canada
| | - R V Iozzo
- Department of Pathology, Anatomy, and Cell Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, 19107, United States
| | - D E Birk
- Department of Molecular Pharmacology and Physiology, Morsani School of Medicine, University of South Florida, Tampa, FL, 33612, United States
| | - L Han
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, 19104, United States.
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Kong D, Yao J, Li X, Luo J, Yang M. A reusable AuNPS with increased stability applied for fast screening of trace heavy metals in edible and medicinal marine products. Ecotoxicol Environ Saf 2020; 204:111107. [PMID: 32823057 DOI: 10.1016/j.ecoenv.2020.111107] [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] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 06/11/2023]
Abstract
Heavy metal pollution in marine environment poses a severe threat to the safety of marine products and is thus causing increasingly concerns in terms of their toxicity and potential health risks pose to human. Due to the complex matrix of marine products, a fast screening method for heavy metals at trace level with low price, reusability, high accuracy and long lifetime is of urgency and necessity for consumers and processing factories. This work described a simplified screening system through the preparation, characterization and particular application of Au nano particle sensor (AuNPS) in the complex marine matrix, the main aim is to significantly increase the stability, sensitivity and lifetime of detection system dedicated to Cu and Hg trace analysis in marine products. It is worth mentioning that, the proposed screening system was characterized through electrochemical experiments and theoretical calculations, which could be a new evidence for selecting the detection system in commercially complex samples. Importantly, the discipline of deposition and oxidative stripping process on AuNPS was explained based on the mechanism of Metal Ion Deficient Layer (MIDL), and illustrated with SEM changes during stripping process, as well as the dissolving-out rate of metals on AuNPS material. Moreover, to further improve the reusability and stability of AuNPS sensor, the complex marine matrix was purified by pre-plating interferences on indium tin oxide glass electrode. The screening system exhibited a liner response in the range of 0.02-0.10 μg mL-1 for Hg, 0.01-0.10 μg mL-1 and 0.001-0.01 μg mL-1 for Cu with the detection limits of 0.138 mg kg-1 and 1.51 mg kg-1 in marine matrix, respectively. The sensitivity and lifetime was at least two times better as compared to similar works even after 20-times use. Finally, this proposed analysis system combined with purification procedure was successfully applied for the edible and medicinal marine products analysis, meanwhile, the accuracy and stability were confirmed with standard analytical methods.
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Affiliation(s)
- Dandan Kong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, PR China
| | - Jiaojiao Yao
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, PR China
| | - Xinyue Li
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, PR China
| | - Jiaoyang Luo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, PR China
| | - Meihua Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, PR China.
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Xu K, Ying L, Chen J, Xu L, Li J, Zhu H, Wang F, Yang L, Zhang J, Fan Y, Zhu T, Kong D, Chan N, Li C. Genetic polymorphisms and cardiovascular outcomes in Chinese patients undergoing PCI and treated with clopidogrel and aspirin. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3395] [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: 11/13/2022] Open
Abstract
Abstract
Background
Genetic polymorphisms of key proteins involved in clopidogrel absorption, metabolism, and action may contribute to variability in platelet inhibition in patients undergoing percutaneous coronary intervention (PCI), but their impacts on cardiovascular outcomes remain unclear.
Purpose
To examine the associations between genetic polymorphisms and cardiovascular outcomes in Chinese patients undergoing PCI and treated with clopidogrel and aspirin.
Methods
This prospective cohort study consecutively enrolled 2,453 post-PCI patients treated with clopidogrel and aspirin. Adenosine diphosphate-induced platelet aggregation was measured by light transmission aggregometry. A total of 40 single nucleotide polymorphisms (SNPs) of 18 genes selected according to published studies were investigated using an improved multiplex ligation detection reaction technique. The primary outcome was major adverse cardiovascular event (MACE), the composite of cardiovascular death, non-fatal myocardial infarction (MI), and ischemic stroke within one year after PCI.
Results
We restricted the analyses to the first 1,452 patients who had finished one-year follow-up and complete data on genotyping and platelet aggregation. 44 (3.03%) patients suffered MACE. Among the 40 SNPs, only the A-allele carriers of CYP2C19*2 had a significant higher risk of MACE (adjusted HR 2.05; 95% CI, 1.01–4.19; p=0.048) and platelet aggregation than non-A-carriers after adjusting age, sex, MI presentation, and left ventricular ejection fraction. CYP2C19*3, CYP2B6 rs3745274, and PEAR1 rs12041331 variants were also significantly associated with platelet aggregation (all p<0.05) but not with MACE at 1 year.
Conclusion
About 54.2% of Chinese patients with PCI were A-allele carriers of CYP2C19*2, who face a two-fold higher risk of MACE than non-A-allele carriers in Chinese patients after PCI. It would help identify low clopidogrel responders and optimize antiplatelet therapy before drug administration.
Figure 1
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): National Natural Science Funding of China
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Affiliation(s)
- K Xu
- Shanghai Chest Hospital, Shanghai, China
| | - L Ying
- the First Affiliated Hospital of Nanjing Medical University, Department of Cardiology, Nanjing, China
| | - J Chen
- the First Affiliated Hospital of Nanjing Medical University, Department of Cardiology, Nanjing, China
| | - L Xu
- the First Affiliated Hospital of Nanjing Medical University, Department of Cardiology, Nanjing, China
| | - J Li
- the First Affiliated Hospital of Nanjing Medical University, Department of Cardiology, Nanjing, China
| | - H Zhu
- the First Affiliated Hospital of Nanjing Medical University, Department of Cardiology, Nanjing, China
| | - F Wang
- the First Affiliated Hospital of Nanjing Medical University, Department of Cardiology, Nanjing, China
| | - L Yang
- the First Affiliated Hospital of Nanjing Medical University, Department of Cardiology, Nanjing, China
| | - J Zhang
- the First Affiliated Hospital of Nanjing Medical University, Department of Cardiology, Nanjing, China
| | - Y Fan
- the First Affiliated Hospital of Nanjing Medical University, Department of Cardiology, Nanjing, China
| | - T Zhu
- the First Affiliated Hospital of Nanjing Medical University, Department of Cardiology, Nanjing, China
| | - D Kong
- the First Affiliated Hospital of Nanjing Medical University, Department of Cardiology, Nanjing, China
| | - N Chan
- McMaster University, Department of Medicine, Hamilton, Canada
| | - C Li
- the First Affiliated Hospital of Nanjing Medical University, Department of Cardiology, Nanjing, China
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Yu B, Cheng C, Wu Y, Guo L, Kong D, Zhang Z, Wang Y, Zheng E, Liu Y, He Y. Interactions of ferritin with scavenger receptor class A members. J Biol Chem 2020; 295:15727-15741. [PMID: 32907880 DOI: 10.1074/jbc.ra120.014690] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/31/2020] [Indexed: 12/16/2022] Open
Abstract
Scavenger receptors are a superfamily of membrane-bound receptors that recognize both self and nonself targets. Scavenger receptor class A (SR-A) has five known members (SCARA1 to -5 or SR-A1 to -A5), which are type II transmembrane proteins that form homotrimers on the cell surface. SR-A members recognize various ligands and are involved in multiple biological pathways. Among them, SCARA5 can function as a ferritin receptor; however, the interaction between SCARA5 and ferritin has not been fully characterized. Here, we determine the crystal structures of the C-terminal scavenger receptor cysteine-rich (SRCR) domain of both human and mouse SCARA5 at 1.7 and 2.5 Å resolution, respectively, revealing three Ca2+-binding sites on the surface. Using biochemical assays, we show that the SRCR domain of SCARA5 recognizes ferritin in a Ca2+-dependent manner, and both L- and H-ferritin can be recognized by SCARA5 through the SRCR domain. Furthermore, the potential binding region of SCARA5 on the surface of ferritin is explored by mutagenesis studies. We also examine the interactions of ferritin with other SR-A members and find that SCARA1 (SR-A1, CD204) and MARCO (SR-A2, SCARA2), which are highly expressed on macrophages, also interact with ferritin. By contrast, SCARA3 and SCARA4, the two SR-A members without the SRCR domain, have no detectable binding with ferritin. Overall, these results provide a mechanistic view regarding the interactions between the SR-A members and ferritin that may help to understand the regulation of ferritin homeostasis by scavenger receptors.
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Affiliation(s)
- Bowen Yu
- Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Chen Cheng
- Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yichun Wu
- Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Luqiang Guo
- Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Dandan Kong
- Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Ze Zhang
- Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yuanyuan Wang
- Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Enlin Zheng
- Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yingbin Liu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Biliary-Pancreatic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yongning He
- Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China; State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Biliary-Pancreatic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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24
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Yan H, Kong D, Li X, Luo J, Fan Z, Yang M. Multi-channel electroanalysis of As (III), Hg and Cu in the complex matrix of Bombyx batryticatus after pre-purification. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Zhang X, Wang X, Qiu H, Kong D, Han M, Guo Y. Poly(methacrylate citric acid) with good biosafety as nanoadsorbents of heavy metal ions. Colloids Surf B Biointerfaces 2019; 187:110656. [PMID: 31796243 DOI: 10.1016/j.colsurfb.2019.110656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 11/13/2019] [Accepted: 11/21/2019] [Indexed: 10/25/2022]
Abstract
Heavy metal ion in aqueous solutions has been a challenge to human health. Discovering efficient adsorbents to remove heavy metal ion from water can help address this problem. In this study, poly(methacrylate citric acid) (PCA) with a well-defined structure based on a hydrophilic citric acid monomer was synthesized and then applied as a nanoadsorbent to remove several heavy metal ion. PCA presented excellent solubility in aqueous solution, and after freeze-drying, a loose porous structure was observed. PCA exhibited higher adsorption capacity for all the heavy metal ions (Cu2+, Pb2+, and Cd2+) than citric acid, and had a selectivity for Pb2+ ions with a removal efficiency of >90%. PCA also showed a good selectivity for adsorption of Pb2+ in a Chinese medicine decoction, with a removal rate >50%, while the concentration of active ingredient was maintained. Cell cytotoxicity in a cell model and system toxicity in mice indicated good biosafety of PCA. These results suggested that PCA with a good biosafety could be utilized as nanoadsorbent to remove Pb2+ ion from aqueous solution and decoction.
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Affiliation(s)
- Xuejie Zhang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Xiangtao Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Hanhong Qiu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Dandan Kong
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Meihua Han
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Yifei Guo
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China.
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26
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Jin N, Kong D, Wang H. Effects of temperature and time on gelatinization of corn starch employing gradient isothermal heating program of rapid visco analyzer. J FOOD PROCESS ENG 2019. [DOI: 10.1111/jfpe.13264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nan Jin
- College of EngineeringChina Agricultural University Beijing China
| | - Dandan Kong
- College of EngineeringChina Agricultural University Beijing China
| | - Hongying Wang
- College of EngineeringChina Agricultural University Beijing China
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27
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Halperin L, Liew J, Kong D, Levin A, Krahn A, Schwartz D, Laksman Z. ANTICOAGULATION FOR PATIENTS WITH ATRIAL FIBRILLATION AND END STAGE RENAL FAILURE ON DIALYSIS. Can J Cardiol 2019. [DOI: 10.1016/j.cjca.2019.07.486] [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: 10/25/2022] Open
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28
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Guo Y, Zhang X, Sun X, Kong D, Han M, Wang X. Nanoadsorbents Based on NIPAM and Citric Acid: Removal Efficacy of Heavy Metal Ions in Different Media. ACS Omega 2019; 4:14162-14168. [PMID: 31508537 PMCID: PMC6732980 DOI: 10.1021/acsomega.9b00573] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 08/07/2019] [Indexed: 05/30/2023]
Abstract
Heavy metal ions in aqueous solutions are harmful to human health, but exploring and exploiting nanoadsorbents with a high adsorption capacity and low cost should be an effective method for overcoming this problem. In this study, a novel nanoadsorbent termed poly(N-isopropylacrylamide-co-citric acid) (PNCA) was designed and synthesized via free-radical polymerization. PNCA exhibits good solubility in aqueous solutions and can self-assemble into spherical nanoaggregates with a mean hydrodynamic diameter of approximately 723.1 nm. After freeze-drying, the solid powder of PNCA exhibited a loose porous structure. When PNCA is dissolved in water, the resulting copolymer solution exhibits high removal rates for Cu2+ and Pb2+ of over 80%; meanwhile, over 97% of the PNCA is precipitated with metal ions. The adsorption process of PNCA chelated with Cu2+ ions fit the Freundlich model. The adsorption capacity is independent of the media pH, but could be affected by the temperature. Except for herbal medicines with alkaloids as active ingredients, PNCA also presents good adsorption capacity for Cu2+ in herbal medicine decoctions, with a removal rate of over 80%. The cell cytotoxicity in vitro and system toxicity in vivo demonstrate the desirable biosafety of PNCA. These results suggest that PNCA with good biosafety can be utilized as a nanoadsorbent to remove the metal ions, especially Cu2+, in different media.
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Affiliation(s)
- Yifei Guo
- Institute of Medicinal
Plant
Development, Chinese Academy of Medical
Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Xuejie Zhang
- Institute of Medicinal
Plant
Development, Chinese Academy of Medical
Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Xueqing Sun
- Institute of Medicinal
Plant
Development, Chinese Academy of Medical
Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Dandan Kong
- Institute of Medicinal
Plant
Development, Chinese Academy of Medical
Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Meihua Han
- Institute of Medicinal
Plant
Development, Chinese Academy of Medical
Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
| | - Xiangtao Wang
- Institute of Medicinal
Plant
Development, Chinese Academy of Medical
Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing 100193, China
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29
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Yu B, Hu Z, Kong D, Cheng C, He Y. Crystal structure of the CTLD7 domain of human M-type phospholipase A2 receptor. J Struct Biol 2019; 207:295-300. [DOI: 10.1016/j.jsb.2019.06.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 06/26/2019] [Accepted: 06/30/2019] [Indexed: 01/22/2023]
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30
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Kong D, Sun K, Shi MY, Song YP, Wen MY, Liu ZW. [Donor HSCs with a preexisting ASXL1-mutation evoluting FLT3-ITD positive AML-M 2 and FLT3-ITD negative AML-M 5 in the donor and recipient respectively: one case analysis and literatures review]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:327-329. [PMID: 31104446 PMCID: PMC7343022 DOI: 10.3760/cma.j.issn.0253-2727.2019.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- D Kong
- Department of Hematology, Henan Province People's Hospital and Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - K Sun
- Department of Hematology, Henan Province People's Hospital and Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - M Y Shi
- Department of Hematology, Henan Province People's Hospital and Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - Y P Song
- Henan Tumor Hospital Affiliated to Zhengzhou University, Zhengzhou 450008, China
| | - M Y Wen
- Henan Provincial Center for China Marrow Donor Program, Zhengzhou 450003, China
| | - Z W Liu
- Department of Hematology, Henan Province People's Hospital and Zhengzhou University People's Hospital, Zhengzhou 450003, China
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31
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Cao L, Yu B, Kong D, Cong Q, Yu T, Chen Z, Hu Z, Chang H, Zhong J, Baker D, He Y. Functional expression and characterization of the envelope glycoprotein E1E2 heterodimer of hepatitis C virus. PLoS Pathog 2019; 15:e1007759. [PMID: 31116791 PMCID: PMC6530877 DOI: 10.1371/journal.ppat.1007759] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 04/12/2019] [Indexed: 12/11/2022] Open
Abstract
Hepatitis C virus (HCV) is a member of Hepacivirus and belongs to the family of Flaviviridae. HCV infects millions of people worldwide and may lead to cirrhosis and hepatocellular carcinoma. HCV envelope proteins, E1 and E2, play critical roles in viral cell entry and act as major epitopes for neutralizing antibodies. However, unlike other known flaviviruses, it has been challenging to study HCV envelope proteins E1E2 in the past decades as the in vitro expressed E1E2 heterodimers are usually of poor quality, making the structural and functional characterization difficult. Here we express the ectodomains of HCV E1E2 heterodimer with either an Fc-tag or a de novo designed heterodimeric tag and are able to isolate soluble E1E2 heterodimer suitable for functional and structural studies. Then we characterize the E1E2 heterodimer by electron microscopy and model the structure by the coevolution based modeling strategy with Rosetta, revealing the potential interactions between E1 and E2. Moreover, the E1E2 heterodimer is applied to examine the interactions with the known HCV receptors, neutralizing antibodies as well as the inhibition of HCV infection, confirming the functionality of the E1E2 heterodimer and the binding profiles of E1E2 with the cellular receptors. Therefore, the expressed E1E2 heterodimer would be a valuable target for both viral studies and vaccination against HCV. Hepatitis C virus (HCV) is an enveloped virus that infects millions of people worldwide and may lead to cirrhosis and hepatocellular carcinoma. HCV has two envelope proteins, E1 and E2, which form heterodimers on viral surface and are critical for HCV cell entry. However, current studies of HCV E1E2 are often limited by the poor quality of the in vitro expressed E1E2 heterodimers. Here we express the ectodomains of HCV E1E2 with different tags, and are able to isolate soluble E1E2 ectodomains suitable for structural and functional studies. Then we generate the 3D reconstruction of E1E2 heterodimer by electron microscopy and also model the E1E2 structure by the coevolution based strategy with Rosetta, showing the potential interactions between E1 and E2. Moreover, the E1E2 heterodimer is applied to examine the interactions with the HCV cellular receptors, neutralizing antibodies as well as the inhibition of HCV infection. These results suggest that the expressed E1E2 heterodimer would be a promising target for both viral studies and vaccination against HCV.
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Affiliation(s)
- Longxing Cao
- State Key Laboratory of Molecular Biology, National Center for Protein Science Shanghai, Shanghai Science Research Center, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai, China
- Department of Biochemistry, University of Washington, Seattle, Washington, United States of America
- Institute for Protein Design, University of Washington, Seattle, Washington, United States of America
| | - Bowen Yu
- State Key Laboratory of Molecular Biology, National Center for Protein Science Shanghai, Shanghai Science Research Center, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai, China
| | - Dandan Kong
- State Key Laboratory of Molecular Biology, National Center for Protein Science Shanghai, Shanghai Science Research Center, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai, China
| | - Qian Cong
- Department of Biochemistry, University of Washington, Seattle, Washington, United States of America
- Institute for Protein Design, University of Washington, Seattle, Washington, United States of America
| | - Tao Yu
- CAS Key Laboratory of Molecular Virology and Immunology, Unit of Viral Hepatitis, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Zibo Chen
- Department of Biochemistry, University of Washington, Seattle, Washington, United States of America
- Institute for Protein Design, University of Washington, Seattle, Washington, United States of America
| | - Zhenzheng Hu
- State Key Laboratory of Molecular Biology, National Center for Protein Science Shanghai, Shanghai Science Research Center, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai, China
| | - Haishuang Chang
- State Key Laboratory of Molecular Biology, National Center for Protein Science Shanghai, Shanghai Science Research Center, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai, China
| | - Jin Zhong
- CAS Key Laboratory of Molecular Virology and Immunology, Unit of Viral Hepatitis, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - David Baker
- Department of Biochemistry, University of Washington, Seattle, Washington, United States of America
- Institute for Protein Design, University of Washington, Seattle, Washington, United States of America
- Howard Hughes Medical Institute, University of Washington, Seattle, Washington, United States of America
| | - Yongning He
- State Key Laboratory of Molecular Biology, National Center for Protein Science Shanghai, Shanghai Science Research Center, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai, China
- * E-mail:
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Tang L, Sun L, Zhao P, Kong D. Effect of activated carbon nanoparticles on lymph node harvest in patients with colorectal cancer. Colorectal Dis 2019; 21:427-431. [PMID: 30580490 DOI: 10.1111/codi.14538] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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: 05/24/2018] [Accepted: 12/07/2018] [Indexed: 12/12/2022]
Abstract
AIM The aim was to examine the effect of activated carbon nanoparticles (ACNs) on lymph node retrieval in colorectal cancer (CRC) patients. METHODS This prospective randomized study of 80 subjects was performed between March 2016 and December 2016. Eighty patients with CRC were randomly divided into two groups, the ACN group and a control group. The patients in the ACN group were subjected to 1 ml of ACN injection in the subserosa around the tumour before colectomy and D3 lymphadenectomy. The patients in the control group received the same procedure without the injection of ACNs. After surgery, lymph nodes were isolated, and the greatest dimensions were measured by the same pathologist. RESULTS The average number of lymph nodes harvested from each patient was markedly more in the ACN group (31.3 ± 8.1) than in the control group (21.9 ± 5.3; P < 0.001), and the average number of lymph nodes less than 5 mm in greatest dimension was significantly more in the ACN group (11.9 ± 4.9) than in the control group (4.1 ± 2.4; P < 0.001). The ACN group (15/40) had a higher rate of Stage III patients compared to the control group (6/39; P = 0.026). Besides, the greatest dimension of 32.8% metastatic lymph nodes was less than 5 mm. CONCLUSION There is significant upstaging following the use of ACNs, which could find more involved nodes. Therefore, ACNs can be used as a tracer to harvest more lymph nodes in CRC patients, with improvement in the accuracy of pathological staging.
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Affiliation(s)
- L Tang
- Department of Colorectal Cancer, Key Laboratory of Cancer Prevention and Therapy, and National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - L Sun
- Department of Pathology, Key Laboratory of Cancer Prevention and Therapy, and National Clinical Research Center of Cancer, Cancer Hospital of Tianjin Medical University, Tianjin, China
| | - P Zhao
- Department of Colorectal Cancer, Key Laboratory of Cancer Prevention and Therapy, and National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - D Kong
- Department of Colorectal Cancer, Key Laboratory of Cancer Prevention and Therapy, and National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
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Li X, Tu P, Umar M, Liu Q, Luo W, Yang X, Zhu J, Kong D, Li M. A study on molecular mechanisms of adiposis induced by long-term treatment of high-fat and high-sucrose in C57BL/6J mice. Physiol Res 2019; 68:75-87. [PMID: 30433796 DOI: 10.33549/physiolres.933830] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Adiposis is reputed as a twin disease of type 2 diabetes and greatly harmful to human health. In order to understand the molecular mechanisms of adiposis, the changes of physiological, pathological, epigenetic and correlative gene expression were investigated during the adiposis development of C57BL/6J mice induced by long time (9 months) high-fat and high-sucrose diet (HFSD) sustainably. The results showed that mRNA transcription level of the Leptin, Glut4 and Glut2 genes have been obviously changed, which exhibit a negative correlation with methylation on their promoter DNA. The results also revealed that HFSD induced higher level of DNA methyltransferase 1 (DNMT1) in fat tissue might play important role in regulating the changes of methylation pattern on Glut4 and Leptin genes, and which might be one of the molecular mechanisms for the adiposis development.
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Affiliation(s)
- X Li
- Life Science College, Nankai University, Nankai District, Tianjin, China.
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Li Z, Zhang J, Shen D, Zhang J, Han H, Kong D, Kong J, Zhang A. Survival Effect Difference of Whole-Brain Radiation Therapy and TKIs in Patients with Brain Metastases from Non-Small Cell Lung Cancer Stratified by EGFR Mutation Status. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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Chau W, Dong X, Kong D, Li M, Bergren S. DOES FILIAL DISCREPANCY AFFECT DEPRESSIVE SYMPTOMS AFTER TWO YEARS: A LONGITUDINAL STUDY. Innov Aging 2018. [DOI: 10.1093/geroni/igy031.3448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- W Chau
- Rush University Medical Center
| | - X Dong
- Institute for Health, Health Care Policy and Aging Research, Rutgers University
| | | | - M Li
- Rush University Medical Center
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Fan C, Liang Y, Dong H, Yang J, Tang G, Zhang W, Kong D, Li J, Cao Y. Guanidinium ionic liquid-controlled synthesis of zeolitic imidazolate framework for improving its adsorption property. Sci Total Environ 2018; 640-641:163-173. [PMID: 29859434 DOI: 10.1016/j.scitotenv.2018.05.282] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/21/2018] [Accepted: 05/21/2018] [Indexed: 06/08/2023]
Abstract
The massive release of rhodamine B (RhB) to water system is an emerging problem, which dramatically threaten environment and human health. The development of an adsorbent with enhanced removal efficiency for RhB is urgently needed. Herein, we report an environment-friendly synthesis of high quality zeolitic imidazolate framework-8 (ZIF-8) and functional ionic liquid@ZIF-8 in water-based system without heat treatment for improving its adsorption property. Guanidinium ionic liquids (ILs) could not only act as greener agents instead of volatile bases and toxic surfactants to efficiently control the nucleation and growth rate of ZIF-8, but also were incorporated as shell material to add specific adsorption sites. The relationship between nanoparticle structure and adsorption performance for RhB was systematically investigated. Due to high surface area (1167 m2 g-1), high porosity (0.79 cm3 g-1), high crystallinity, nano size (about 100 nm) and monodispersity, the as-obtained ZIF-8 showed improved adsorption capacity toward RhB (80% removal efficiency). Heteropolyanion-based guanidinium IL@meso-ZIF-8 (HPAIL@meso-ZIF-8) exhibited the high RhB uptake capacity of 278 mg g-1 (higher than most of the reported adsorbents) and effectively removed 99% of RhB within 15 min. The results showed that the adsorption process of prepared materials fitted well with pseudo-second-order kinetics and Langmuir isotherm model. The existence of mesopores in ZIF-8 facilitated the diffusion of RhB and the incorporated guanidinium IL played a significant role in enhancing the adsorption affinity. Moreover, the reusability results revealed the HPAIL@meso-ZIF-8 as a highly efficient adsorbent for RhB removal with satisfactory performance and structural stability. Therefore, HPAIL@meso-ZIF-8 is one of the most promising adsorbents for organic dye removal from water.
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Affiliation(s)
- Chen Fan
- College of Plant Protection, China Agricultural University, Beijing, China
| | - You Liang
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Hongqiang Dong
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Jiale Yang
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Gang Tang
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Wenbing Zhang
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Dandan Kong
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Jianqiang Li
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Yongsong Cao
- College of Plant Protection, China Agricultural University, Beijing, China.
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Kong Y, Yao G, He J, Yang G, Kong D, Sun Y. lncRNA LNC-GULP1-2:1 is involved in human granulosa cell proliferation by regulating COL3A1 gene. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.900] [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: 10/28/2022]
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Kong D, Kong W, Yang X, Yang M. Contamination Parts and Residue Levels of Multi-Mycotoxins in Medicinal and Edible Locust. Front Pharmacol 2018; 9:480. [PMID: 29867486 PMCID: PMC5966561 DOI: 10.3389/fphar.2018.00480] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 04/23/2018] [Indexed: 11/13/2022] Open
Abstract
Locust is esteemed as a traditional Chinese medicine, as well as one of the most important nutritional foods especially in Asian countries. However, some toxic secondary metabolites such as mycotoxins are usually found in different parts of locust to affect its quality and safety. This study aimed to investigate the aflatoxins (AFs) contaminated parts by observing Aspergillus flavus, spores’ diameter, amount and distribution on head, tentacle, wing, belly and shank parts of the locust with scanning electron microscopy (SEM). Furthermore, to assess the residue levels of multi-mycotoxins in the locust, the high performance liquid chromatography with fluorescence detection (HPLC-FLD) was adopted. The technique was used to determine the contents of AFs, zearalenone (ZON) and α-zearalenol (α-ZOL) in locust and the positive samples were confirmed by high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The chromatographic conditions, MS/MS parameters and the method of sample extraction were carefully optimized. Results revealed that obvious differences of Aspergillus flavus strains and spores were found, while the spores’ diameter ranged from 3.0 to 13.0 μm in different contaminated parts of the locust samples. The HPLC-FLD method for multi-mycotoxins analysis showed good selectivity, linearity, recovery and precision. Limits of quantification (LOQs) were lower than 27.6 μg/kg, while limits of detection (LODs) were in the range of 0.02–8.6 μg/kg. The accuracy of the developed method was validated regarding recoveries of 80.1–118.1% with relative standard deviation (RSD) ≤ 11.4%. Finally, the developed multi-mycotoxin method was applied for screening of these mycotoxins in 11 commercial locust samples. Only AFB1 and AFB2 were found in six samples, and the contamination levels ranged from 0.12 to 4.4 μg/kg, which were lower than the maximum residue limit and can be used safely. This is the first report on the exploration of contamination parts and levels of multi-mycotoxins in medicinal and edible locust. The combined method of SEM and HPLC-FLD exhibited advantages of low cost, high sensitivity, rapid determination, convenience and especially intuitive judgment, which is proposed for contamination parts observation, for the large-scale quantification of multi-mycotoxins in other medicinal animal matrices.
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Affiliation(s)
- Dandan Kong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences - Peking Union Medical College, Beijing, China
| | - Weijun Kong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences - Peking Union Medical College, Beijing, China
| | - Xiaoli Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences - Peking Union Medical College, Beijing, China
| | - Meihua Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences - Peking Union Medical College, Beijing, China
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Tang G, Wang B, Ding G, Zhang W, Liang Y, Fan C, Dong H, Yang J, Kong D, Cao Y. Developing ionic liquid forms of picloram with reduced negative effects on the aquatic environment. Sci Total Environ 2018; 616-617:128-134. [PMID: 29112836 DOI: 10.1016/j.scitotenv.2017.10.288] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 10/27/2017] [Accepted: 10/27/2017] [Indexed: 05/26/2023]
Abstract
As a widely used herbicide, picloram has been frequently detected in the aquatic environment due to its high leaching potential and low adsorption by soil. To reduce aquatic environmental risk of this herbicide caused by leaching and runoff, five herbicidal ionic liquids (HILs) based on picloram were prepared by pairing isopropylamine, octylamine, octadecylamine, 1-methylimidazole, 4-methylmorpholine respectively. Their physicochemical properties including water solubility, octanol-water partition coefficient, surface activity, leaching, as well as soil adsorption were compared. The results showed that these properties could be adjusted by appropriate selection of counter cations. The HILs with long alkyl chains in cations had low water solubility and leaching characteristics, good surface tension and lipophilicity, as well as high soil adsorption. Compared with currently used picloram in the forms of potassium salts, HIL3 had more excellent herbicidal activity against broadleaf weeds and may offer a lower use dosage. The HILs based on picloram can reduce its negative effects on the aquatic environment and can be used as a desirable alternative to commercial herbicidal formulations of picloram in future.
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Affiliation(s)
- Gang Tang
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Baitao Wang
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Guanglong Ding
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Wenbing Zhang
- College of Plant Protection, China Agricultural University, Beijing, China
| | - You Liang
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Chen Fan
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Hongqiang Dong
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Jiale Yang
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Dandan Kong
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Yongsong Cao
- College of Plant Protection, China Agricultural University, Beijing, China.
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Zhang C, Dou X, Zhang L, Sun M, Zhao M, OuYang Z, Kong D, Antonio FL, Yang M. A Rapid Label-Free Fluorescent Aptasensor PicoGreen-Based Strategy for Aflatoxin B₁ Detection in Traditional Chinese Medicines. Toxins (Basel) 2018; 10:toxins10030101. [PMID: 29495577 PMCID: PMC5869389 DOI: 10.3390/toxins10030101] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/19/2018] [Accepted: 02/26/2018] [Indexed: 11/16/2022] Open
Abstract
Aflatoxin B1 (AFB1) is a very hazardous carcinogen, readily contaminating foodstuffs and traditional Chinese medicines (TCMs) that has inspired increasing health concerns due to dietary exposure. Colloidal nanocrystals have been proposed as optical labels for aptasensor assembly, but these typically require tedious multistep conjugation and suffer from unsatisfactory robustness when used for complex matrices. In the present study, we report a rapid and sensitive method for screening for trace AFB1 levels in TCMs using a label-free fluorescent aptasensor PicoGreen dye-based strategy. Using PicoGreen to selectively measure complementary double-stranded DNA, fluorescence enhancement due to dsDNA is ‘turned off’ in the presence of AFB1 due binding of aptamer target over complementary sequence. Self-assembly of a label-free fluorescent aptasensor based on AFB1 aptamer and PicoGreen dye was performed. Due to competition between the complementary sequence and AFB1 target, this rapid method was capable of highly sensitive and selective screening for AFB1 in five types of TCMs. This proposed approach had a limit of detection as low as 0.1 μg·L−1 and good linearity with a range of 0.1–10 μg·L−1 (0.1–10 ppb). Among the 20 samples tested, 6 batches were found to be contaminated with AFB1 using this method, which was confirmed using sophisticated liquid chromatography-electrospray ionization-tandem mass spectrometry/mass spectrometry analysis. The results of this study indicate the developed method has the potential to be a simple, quick, and sensitive tool for detecting AFB1 in TCMs.
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Affiliation(s)
- Cheng Zhang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China; (C.Z.); (X.D.); (L.Z.); (M.S.); (D.K.)
- School of Pharmacy JiangSu University, Zhenjiang 212013, China; (M.Z.); (Z.O.Y.)
| | - Xiaowen Dou
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China; (C.Z.); (X.D.); (L.Z.); (M.S.); (D.K.)
| | - Lei Zhang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China; (C.Z.); (X.D.); (L.Z.); (M.S.); (D.K.)
| | - Meifeng Sun
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China; (C.Z.); (X.D.); (L.Z.); (M.S.); (D.K.)
- School of Pharmacy JiangSu University, Zhenjiang 212013, China; (M.Z.); (Z.O.Y.)
| | - Ming Zhao
- School of Pharmacy JiangSu University, Zhenjiang 212013, China; (M.Z.); (Z.O.Y.)
| | - Zhen OuYang
- School of Pharmacy JiangSu University, Zhenjiang 212013, China; (M.Z.); (Z.O.Y.)
| | - Dandan Kong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China; (C.Z.); (X.D.); (L.Z.); (M.S.); (D.K.)
| | - F. Logrieco Antonio
- National Research Council of Italy, CNR-ISPA, Via G. Amendola, 122/O, I-70126 Bari, Italy;
| | - Meihua Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China; (C.Z.); (X.D.); (L.Z.); (M.S.); (D.K.)
- Correspondence: .; Tel.: +86-010-5783-3277
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Hu Y, Luo J, Li K, Ding T, Kong D, Zhang S, Yang S, Yang M. Multi-element determination in Schisandra chinensis fructus
by inductively coupled plasma mass spectrometry and the study of element transfer rules from herbs to decoctions. Sep Sci plus 2018. [DOI: 10.1002/sscp.201700011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yuli Hu
- College of Traditional Chinese Medicine; Jilin Agricultural University; Changchun China
- Institute of Medicinal Plant Development; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing China
| | - Jiaoyang Luo
- Institute of Medicinal Plant Development; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing China
| | - Kunlun Li
- Institute of Medicinal Plant Development; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing China
- School of Life Science and Engineering; Southwest Jiaotong University; Chengdu China
| | - Tong Ding
- College of Traditional Chinese Medicine; Jilin Agricultural University; Changchun China
- Institute of Medicinal Plant Development; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing China
| | - Dandan Kong
- Institute of Medicinal Plant Development; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing China
| | - Shanshan Zhang
- Institute of Medicinal Plant Development; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing China
| | - Shihai Yang
- College of Traditional Chinese Medicine; Jilin Agricultural University; Changchun China
| | - Meihua Yang
- Institute of Medicinal Plant Development; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing China
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Yang J, Fan C, Kong D, Tang G, Zhang W, Dong H, Liang Y, Wang D, Cao Y. Synthesis and application of imidazolium-based ionic liquids as extraction solvent for pretreatment of triazole fungicides in water samples. Anal Bioanal Chem 2018; 410:1647-1656. [DOI: 10.1007/s00216-017-0820-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 11/08/2017] [Accepted: 12/08/2017] [Indexed: 12/26/2022]
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43
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Liu F, Dou X, Luo J, Kong D, Fan Z, Yang M. Occurrence of Pesticides in Pericarpium Citri Reticulatae and Related Products Using Syringe Filter-Based Cleanup. J BRAZIL CHEM SOC 2018. [DOI: 10.21577/0103-5053.20180107] [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: 11/04/2022] Open
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44
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Li Z, Zhang J, Shen X, Yang F, Kong D, Kong J, Zhang J, Zhang A. Whole Brain Radiation Therapy Improves Overall and Intracranial Progression-Free Survivals in Breast Cancer Patients With Brain Metastases in the Setting of Systemic Treatments. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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Fan C, Guo M, Liang Y, Dong H, Ding G, Zhang W, Tang G, Yang J, Kong D, Cao Y. Pectin-conjugated silica microcapsules as dual-responsive carriers for increasing the stability and antimicrobial efficacy of kasugamycin. Carbohydr Polym 2017; 172:322-331. [DOI: 10.1016/j.carbpol.2017.05.050] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 04/19/2017] [Accepted: 05/17/2017] [Indexed: 12/15/2022]
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46
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Fan C, Liang Y, Dong H, Ding G, Zhang W, Tang G, Yang J, Kong D, Wang D, Cao Y. In-situ ionic liquid dispersive liquid-liquid microextraction using a new anion-exchange reagent combined Fe 3 O 4 magnetic nanoparticles for determination of pyrethroid pesticides in water samples. Anal Chim Acta 2017; 975:20-29. [DOI: 10.1016/j.aca.2017.04.036] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 03/30/2017] [Accepted: 04/13/2017] [Indexed: 02/02/2023]
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47
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Kim C, Nam D, Kong D, Kang S, Jang J, Kim J, Lim Y, Koh Y, Chung Y, Kim J. OS09.7 Phase III radomized trial of autologous cytokine-induced killer cell immunotherapy for newly diagnosed glioblastoma in Korea. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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48
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Tang G, Liu Y, Ding G, Zhang W, Liang Y, Fan C, Dong H, Yang J, Kong D, Cao Y. Ionic liquids based on bromoxynil for reducing adverse impacts on the environment and human health. NEW J CHEM 2017. [DOI: 10.1039/c7nj01694h] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Many herbicides exhibit some disadvantages such as high water solubility and volatility after application, which lead to potential threats to the aquatic and atmospheric environment and human health.
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Affiliation(s)
- Gang Tang
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Yao Liu
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Guanglong Ding
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Wenbing Zhang
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - You Liang
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Chen Fan
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Hongqiang Dong
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Jiale Yang
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Dandan Kong
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Yongsong Cao
- College of Plant Protection
- China Agricultural University
- Beijing
- China
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49
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Kong D, Nguyen KDQ, Megone W, Peng L, Gautrot JE. The culture of HaCaT cells on liquid substrates is mediated by a mechanically strong liquid–liquid interface. Faraday Discuss 2017; 204:367-381. [DOI: 10.1039/c7fd00091j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The mechanical properties of naturally-derived matrices and biomaterials are thought to play an important role in directing cell adhesion, spreading, motility, proliferation and differentiation. However, recent reports have indicated that cells may respond to local nanoscale physical cues, rather than bulk mechanical properties. We had previously reported that primary keratinocytes and mesenchymal stem cells did not seem to respond to the bulk mechanical properties of poly(dimethyl siloxane) (PDMS) substrates. In this study, we examine the mechanical properties of weakly crosslinked PDMS substrates and observe a liquid-like behaviour, with complete stress relaxation. We then report the observation that HaCaT cells, an epidermal cell line, proliferate readily at the surface of uncrosslinked liquid PDMS, as well as on low viscosity (0.77 cSt) fluorinated oil. These results are surprising, considering current views in the field of mechanotransduction on the importance of bulk mechanical properties, but we find that strong mechanical interfaces, presumably resulting from protein assembly, are formed at liquid–liquid interfaces for which cell adhesion and proliferation are observed. Hence our results suggest that cells sense the nanoscale mechanical properties of liquid–liquid interfaces and that such physical cues are sufficient to sustain the proliferation of adherent cells.
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Affiliation(s)
- D. Kong
- School of Engineering and Materials Science
- Queen Mary
- University of London
- London
- UK
| | - K. D. Q. Nguyen
- School of Engineering and Materials Science
- Queen Mary
- University of London
- London
- UK
| | - W. Megone
- School of Engineering and Materials Science
- Queen Mary
- University of London
- London
- UK
| | - L. Peng
- School of Engineering and Materials Science
- Queen Mary
- University of London
- London
- UK
| | - J. E. Gautrot
- School of Engineering and Materials Science
- Queen Mary
- University of London
- London
- UK
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Li Z, Geng W, Zhang J, Yin J, Kong D, Kong J, Zhang J, Zhang A. Positive Axillary Lymph Node Number Rather Than Total Lymph Node Number Removed Associates With Arm Lymphedema Among Postoperative Breast Cancer Patients Over Radiation Therapy Course. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.735] [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: 10/20/2022]
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