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Mi Y, Li Q, Liu B, Wang D, Liu Z, Wang T, Wang Y, Zang Y, Zhou Y, Wen Y, Ding Y. Correction: Ubiquitous mitochondrial creatine kinase promotes the progression of gastric cancer through a JNK-MAPK/JUN/HK2 axis regulated glycolysis. Gastric Cancer 2024; 27:646-648. [PMID: 38519729 PMCID: PMC11016502 DOI: 10.1007/s10120-024-01490-w] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/25/2024]
Affiliation(s)
- Yushuai Mi
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Quanhui Li
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Bingtian Liu
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Dehai Wang
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Ziping Liu
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Tianshi Wang
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Yuan Wang
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Yifeng Zang
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Yan Zhou
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Yugang Wen
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 85 Wujin Road, Shanghai, 200080, China
| | - Yinlu Ding
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China.
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Chen L, Xie YL, Wu XH, Wu LL, Yang J, Gao Y, Mi Y, Yang F. Bioactivity and genome analysis of Bacillus amyloliquefaciens GL18 isolated from the rhizosphere of Kobresia myosuroides in an alpine meadow. Antonie Van Leeuwenhoek 2024; 117:16. [PMID: 38189906 DOI: 10.1007/s10482-023-01917-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 12/04/2023] [Indexed: 01/09/2024]
Abstract
The unique eco-environment of the Qinghai-Tibet Plateau breeds abundant microbial resources. In this research, Bacillus amyloliquefaciens GL18, isolated from the rhizosphere of Kobresia myosuroides from an alpine meadow, and the antagonistic activity, bacteriostatic hydrolase activity, and low temperature, salt, and drought resistance of it were determined and analysed. The seedlings of Avena sativa were root-irrigated using bacteria suspensions (cell concentration 1 × 107 cfu/mL) of GL18, and the growth-promoting effect of GL18 on it was determined under cold, salt and drought stress, respectively. The whole genome of GL18 was sequenced, and its functional genes were analysed. GL18 presented significant antagonistic activity to Fusarium graminearum, Fusarium acuminatum, Fusarium oxysporum and Aspergillus niger (inhibition zone diameter > 17 mm). Transparent zones formed on four hydrolase detection media, indicating that GL18 secreted cellulase, protease, pectinase and β-1,3-glucanase. GL18 tolerated conditions of 10 °C, 11% NaCl and 15% PEG-6000, presenting cold, salt and drought resistance. GL18 improved the cold, salt and drought tolerance of A. sativa and it showed significant growth effects under different stress. The total length of the GL18 genome was 3,915,550 bp, and the number of coding DNA sequence was 3726. Compared with the clusters of orthologous groups of proteins, gene ontology and kyoto encyclopedia of genes and genomes databases, 3088, 2869 and 2357 functional genes were annotated, respectively. GL18 contained gene clusters related to antibacterial substances, functional genes related to the synthesis of plant growth-promoting substances, and encoding genes related to stress resistance. This study identified an excellent Bacillus strain and provided a theoretical basis for improving stress resistance and promoting the growth of herbages under abiotic stress.
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Affiliation(s)
- L Chen
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, 810016, China
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, 810016, China
| | - Y L Xie
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, 810016, China.
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, 810016, China.
- Key Laboratory of Superior Forage Germplasm in the Qinghai-Tibetan Plateau, Qinghai University, Xining, 810016, China.
| | - X H Wu
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, 810016, China
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, 810016, China
| | - L L Wu
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, 810016, China
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, 810016, China
| | - J Yang
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, 810016, China
| | - Y Gao
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, 810016, China
| | - Y Mi
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, 810016, China
| | - F Yang
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, 810016, China
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, 810016, China
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Mi Y, Xue Z, Qu S, Yin Y, Huang J, Kou R, Wang X, Luo S, Li W, Tang Y. The economic burden of coronary heart disease in mainland China. Public Health 2023; 224:140-151. [PMID: 37797560 DOI: 10.1016/j.puhe.2023.08.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 07/06/2023] [Accepted: 08/25/2023] [Indexed: 10/07/2023]
Abstract
OBJECTIVES The aim of this study was to systematically evaluate the current economic burden of coronary heart disease (CHD) in mainland China and provide a reference for the formulation of policies to reduce the economic burden of CHD. STUDY DESIGN A systematic literature review was conducted of empirical studies on the economic burden of CHD over the past 20 years. METHODS PubMed, Web of Science, Embase, China Knowledge Resource Integrated Database and the WANFANG database were comprehensively searched for relevant articles published between 1 January 2000 and 22 December 2021. Content analysis was used to extract the data, and Stata 17.0 software was used for analysis. The median values were used to describe trends. RESULTS A total of 35 studies were included in this review. The annual median per-capita hospitalisation expense and the average expense per hospitalisation were $3544.40 ($891.64-$18,371.46) and $5407.34 ($1139.93-$8277.55), respectively. The median ratio on medical consumables expenses, drug expenses, medical examination expenses and treatment expenses were 41.59% (12.40%-63.73%), 26.90% (7.30%-60.00%), 9.45% (1.65%-33.40%) and 10.10% (2.36%-66.00%), respectively. The median per-capita hospitalisation expense in the eastern, central and western regions were $9374.45 ($2056.13-$18,371.46), $4751.5 ($2951.95-$8768.93) and $3251.25 ($891.64-$13,986.38), respectively. The median average expense per hospitalisation in the eastern and central regions were $6177.15 ($1679.15-$8277.55) and $1285.49 ($1239.93-$2197.36), respectively. The median average length of stay in the eastern, central and western regions were 9.3 days, 15.2 days and 16.1 days, respectively. CONCLUSIONS The economic burden of CHD is more severe in mainland China than in developed countries, especially in terms of the direct economic burden. In terms of the types of direct medical expenses, a proportion of medical examination expenses, treatment expenses and drug expenses were lowest in the eastern region, but medical consumables expenses were the highest in this region. This study provides guidance for the formulation of policies to reduce the economic burden of CHD in mainland China.
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Affiliation(s)
- Y Mi
- School of Public Health, Weifang Medical University, Weifang, PR China
| | - Z Xue
- School of Public Health, Weifang Medical University, Weifang, PR China
| | - S Qu
- School of Public Health, Weifang Medical University, Weifang, PR China
| | - Y Yin
- Qingdao Stomatological Hospital, Qingdao, PR China
| | - J Huang
- School of Public Health, Weifang Medical University, Weifang, PR China
| | - R Kou
- School of Public Health, Weifang Medical University, Weifang, PR China
| | - X Wang
- Personnel Department, Weifang Medical University, Weifang, PR China
| | - S Luo
- School of Management, Weifang Medical University, Weifang, PR China
| | - W Li
- School of Public Health, Weifang Medical University, Weifang, PR China.
| | - Y Tang
- School of Public Health, Weifang Medical University, Weifang, PR China.
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Yi H, Liu K, Yang W, Li Y, Wang X, Zhang T, Liu C, Li Y, Mi Y. MRI manifestations of central nervous system leukaemia and cytological analysis of the cerebrospinal fluid. Clin Radiol 2023:S0009-9260(23)00213-1. [PMID: 37330321 DOI: 10.1016/j.crad.2023.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 03/24/2023] [Accepted: 04/28/2023] [Indexed: 06/19/2023]
Abstract
AIM To investigate the magnetic resonance imaging (MRI) features and explore the value of MRI in the diagnosis of central nervous system leukaemia (CNSL). MATERIALS AND METHODS A retrospective study was performed in 68 patients with leukaemia who underwent cranial MRI between January 2020 and June 2022 at Institute of Hematology and Blood Diseases Hospital. RESULTS A total of 33 patients fulfilled the requirements for inclusion. The findings showed that 87.9% patients exhibited neurological symptoms, and 23 patients showed abnormal MRI findings. No differences were observed between the MRI+ and MRI- groups in terms of age, sex, neurological symptoms, glucose in the cerebrospinal fluid (CSF), chloride in the CSF, abnormal cells detected using conventional cytology (CC), bone marrow status at the diagnosis of CNSL, signal intensity ratio, and mortality, except for protein concentration and the number of leukaemic cells detected using flow cytometry (FCM) in the CSF. Kaplan-Meier survival analysis in patients with leukaemia revealed no statistical differences in the median survival times between the MRI+ group and MRI- group. Cox regression analysis and multivariate analysis showed no significant difference in survival rate between the MRI+ and MRI- groups. Kappa consistency test shows weak diagnostic consistency between MRI and CC, and weak diagnostic inconsistency between MRI and FCM. CONCLUSION MRI could serve as an important complementary tool to CC and FCM in the diagnosis of CNSL, especially in patients without leptomeningeal involvement.
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Affiliation(s)
- H Yi
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - K Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - W Yang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Y Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - X Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - T Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - C Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Y Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Y Mi
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China.
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Mi Y, Li Q, Liu B, Wang D, Liu Z, Wang T, Wang Y, Zang Y, Zhou Y, Wen Y, Ding Y. Ubiquitous mitochondrial creatine kinase promotes the progression of gastric cancer through a JNK-MAPK/JUN/HK2 axis regulated glycolysis. Gastric Cancer 2023; 26:69-81. [PMID: 36114400 PMCID: PMC9813075 DOI: 10.1007/s10120-022-01340-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 09/02/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Ubiquitous mitochondrial creatine kinase (uMtCK) transfers high-energy phosphates from mitochondrially generated ATP to creatine to generate phosphocreatine. uMtCK overexpression has been reported in several malignant tumors, however, the clinical significance and impact of uMtCK in gastric cancer (GC) has not been comprehensively studied. METHODS We first examined uMtCK expression in GC by quantitative real-time PCR and western blot assays. Then the clinicopathological significance of aberrant uMtCK expression was determined by immunohistochemical staining in a GC tissue microarray. Kaplan-Meier analysis was used for survival analysis. The biological functions of uMtCK in GC cells were explored by wound-healing, transwell assays and glucose metabolism assays in vitro as well as a liver metastasis model by spleen injection in nude mice in vivo. RESULTS We verified that the expression of uMtCK was substantially elevated in GC tissues, significantly associating with a poorer prognosis in GC patients, especially for those with advanced stage. In univariate and multivariate analyses, uMtCK expression emerged as an independent prognostic factor for both disease-free survival and overall survival. Functionally, we demonstrated that uMtCK promoted glycolysis in GC cells and facilitated their migration, invasion and liver metastasis in vitro and in vivo. Mechanistically, uMtCK enhanced GC progression in a HK2-dependent glycolysis via acting the JNK-MAPK/JUN signaling pathway. CONCLUSIONS uMtCK could serve as a novel independent prognostic biomarker as well as potential therapeutic target for GC patients, particularly for GC patients with an advanced UICC stage and tumor recurrence.
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Affiliation(s)
- Yushuai Mi
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Quanhui Li
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Bingtian Liu
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Dehai Wang
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Ziping Liu
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Tianshi Wang
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Yuan Wang
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Yifeng Zang
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Yan Zhou
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Yugang Wen
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 85 Wujin Road, Shanghai, 200080, China
| | - Yinlu Ding
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China.
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Liu F, Zhou ZF, Mi Y, Ma M, Hong YL, Chen FM. [Inflammatory factors in periodontitis patients and their effects toward the occurrence of gestational diabetes mellitus: a case-control study]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:569-575. [PMID: 35692000 DOI: 10.3760/cma.j.cn112144-20220321-00124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To explore the effects of periodontitis and inflammatory factors toward the occurrence of gestational diabetes mellitus (GDM). Methods: Pregnant women who came to the Department of Obstetrics, Northwest Women's and Children's Hospital for prenatal examinations during March to November of 2021 were invited to participate in this study. Participants with GDM who met the inclusion criteria (n=100) were assigned into the case group; while healthy participants (n=100) were assigned into the control group. Information of participants from the two groups were collected by questionnaires and periodontal statuses were clinically recorded in the meantime. Gingival crevicular fluid (GCF) and venous blood were also collected from participants of two groups to analyze the expression levels of inflammatory factors like C-reactive protein (CRP), tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-6, IL-8, IL-10 and IL-33. Factors different between the two groups were included in the multivariate regression analysis model to determine the risk factors of GDM. Results: The age of participants was (33.4±5.1) years in case group and (30.5±4.5) years in control group respectively, which had statistical differences (t=4.33,P<0.001). Besides, the body mass index of participants from case group was also significantly higher than control group [(28.11±3.85) kg/m2 vs. (23.31±3.15) kg/m2, t=9.65, P<0.001]. Participants with GDM had more adverse periodontal clinical parameters. Prevalence of periodontitis in GDM group was 47.0% (47/100) compared with 29.0% (29/100) in control group (χ²=6.88, P=0.009). Multivariate regression analysis results indicated that periodontitis was a critical risk factor for the occurrence of GDM (OR=1.882, P<0.001). Besides, GCF IL-8, serum TNF-α, IL-8 and IL-10 were also risk factors of GDM due to their higher expressions. Among them, TNF-α in serum (OR=2.077) and IL-8 in serum (OR=2.060) had more significant impacts (P<0.001). Conclusions: This study demonstrated that periodontitis was associated with the occurrence of GDM. Up-regulation of serum pro-inflammatory mediators leaded by local periodontal inflammatory microenvironment might play a critical role in this pathological process.
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Affiliation(s)
- F Liu
- Department of Periodontology, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Xi'an 710032, China
| | - Z F Zhou
- Department of Stomatology, General Hospital of Tibetan Military Command, Lasa 850007, China
| | - Y Mi
- Department of Obstetrics, Northwest Women's and Children's Hospital, Xi'an 710003, China
| | - M Ma
- Department of Stomatology, Northwest Women's and Children's Hospital, Xi'an 710003, China
| | - Y L Hong
- Department of Stomatology Center, Shenzhen Hospital, Southern Medical University, Shenzhen 518100, China
| | - F M Chen
- Department of Periodontology, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Xi'an 710032, China
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Zhao S, Mi Y, Zheng B, Wei P, Gu Y, Zhang Z, Xu Y, Cai S, Li X, Li D. Highly-metastatic colorectal cancer cell released miR-181a-5p-rich extracellular vesicles promote liver metastasis by activating hepatic stellate cells and remodelling the tumour microenvironment. J Extracell Vesicles 2022; 11:e12186. [PMID: 35041299 PMCID: PMC8765330 DOI: 10.1002/jev2.12186] [Citation(s) in RCA: 58] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 11/21/2021] [Accepted: 12/29/2021] [Indexed: 01/11/2023] Open
Abstract
Liver metastasis of colorectal cancer (CRLM) is the most common cause of CRC-related mortality, and is typically caused by interactions between CRC cells and the tumour microenvironment (TME) in the liver. However, the molecular mechanisms underlying the crosstalk between tumour-derived extracellular vesicle (EV) miRNAs and the TME in CRLM have yet to be fully elucidated. The present study demonstrated that highly metastatic CRC cells released more miR-181a-5p-rich EVs than cells which exhibit a low metastatic potential, in-turn promoting CRLM. Additionally, we verified that FUS mediated packaging of miR-181a-5p into CRC EVs, which in-turn persistently activated hepatic stellate cells (HSCs) by targeting SOCS3 and activating the IL6/STAT3 signalling pathway. Activated HSCs could secrete the chemokine CCL20 and further activate a CCL20/CCR6/ERK1/2/Elk-1/miR-181a-5p positive feedback loop, resulting in reprogramming of the TME and the formation of pre-metastatic niches in CRLM. Clinically, high levels of serum EV containing miR-181a-5p was positively correlated with liver metastasis in CRC patients. Taken together, highly metastatic CRC cells-derived EVs rich in miR-181a-5p could activate HSCs and remodel the TME, thereby facilitating liver metastasis in CRC patients. These results provide novel insight into the mechanism underlying liver metastasis in CRC.
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Affiliation(s)
- Senlin Zhao
- Department of Colorectal SurgeryFudan University Shanghai Cancer CenterShanghaiChina
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghaiChina
| | - Yushuai Mi
- Department of Gastrointestinal SurgeryThe Second HospitalCheeloo College of MedicineShandong UniversityJinanChina
| | - Binbin Zheng
- Department of General SurgeryShanghai General HospitalSchool of MedicineShanghai Jiaotong UniversityShanghaiChina
| | - Ping Wei
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghaiChina
- Cancer InstituteFudan University Shanghai Cancer CenterShanghaiChina
- Department of PathologyFudan University Shanghai Cancer CenterShanghaiChina
| | - Yanzi Gu
- Department of BiobankFudan University Shanghai Cancer CenterShanghaiChina
| | - Zhengxiang Zhang
- Department of OncologyYijishan Hospital of Wannan Medical CollegeWuhuAnhuiChina
| | - Ye Xu
- Department of Colorectal SurgeryFudan University Shanghai Cancer CenterShanghaiChina
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghaiChina
| | - Sanjun Cai
- Department of Colorectal SurgeryFudan University Shanghai Cancer CenterShanghaiChina
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghaiChina
| | - Xinxiang Li
- Department of Colorectal SurgeryFudan University Shanghai Cancer CenterShanghaiChina
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghaiChina
| | - Dawei Li
- Department of Colorectal SurgeryFudan University Shanghai Cancer CenterShanghaiChina
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghaiChina
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Feng Y, Lei X, Zhang L, Wan H, Pan H, Wu J, Zou M, Zhu L, Mi Y. COPB2: a transport protein with multifaceted roles in cancer development and progression. Clin Transl Oncol 2021; 23:2195-2205. [PMID: 34101128 PMCID: PMC8455385 DOI: 10.1007/s12094-021-02630-9] [Citation(s) in RCA: 2] [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: 02/26/2021] [Accepted: 04/22/2021] [Indexed: 11/29/2022]
Abstract
The Coatomer protein complex subunit beta 2 (COPB2) is involved in the formation of the COPI coatomer protein complex and is responsible for the transport of vesicles between the Golgi apparatus and the endoplasmic reticulum. It plays an important role in maintaining the integrity of these cellular organelles, as well as in maintaining cell homeostasis. More importantly, COPB2 plays key roles in embryonic development and tumor progression. COPB2 is regarded as a vital oncogene in several cancer types and has been implicated in tumor cell proliferation, survival, invasion, and metastasis. Here, we summarize the current knowledge on the roles of COPB2 in cancer development and progression in the context of the hallmarks of cancer.
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Affiliation(s)
- Y Feng
- Wuxi Medical College, Jiangnan University, Wuxi, 214122, Jiangsu Province, China.,Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - X Lei
- Wuxi Medical College, Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - L Zhang
- Department of Urology, Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213003, Jiangsu Province, China
| | - H Wan
- Wuxi Medical College, Jiangnan University, Wuxi, 214122, Jiangsu Province, China.,Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - H Pan
- Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - J Wu
- Department of Burns and Plastic Surgery, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - M Zou
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Wuxi, 214122, Jiangsu Province, China
| | - L Zhu
- Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China.
| | - Y Mi
- Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China.
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Zhao S, Mi Y, Guan B, Zheng B, Wei P, Gu Y, Zhang Z, Cai S, Xu Y, Li X, He X, Zhong X, Li G, Chen Z, Li D. Correction to: Tumor-derived exosomal miR-934 induces macrophage M2 polarization to promote liver metastasis of colorectal cancer. J Hematol Oncol 2021; 14:33. [PMID: 33618743 PMCID: PMC7901099 DOI: 10.1186/s13045-021-01042-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Senlin Zhao
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China
| | - Yushuai Mi
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Bingjie Guan
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 85 Wujin Road, Shanghai, 200080, China
| | - Binbin Zheng
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 85 Wujin Road, Shanghai, 200080, China
| | - Ping Wei
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China.,Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.,Department of Pathology, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China
| | - Yanzi Gu
- Department of Biobank, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China
| | - Zhengxiang Zhang
- Department of Oncology, Yijishan Hospital of Wannan Medical College, No. 2 Zheshan Road, Wuhu, 241001, Anhui, China
| | - Sanjun Cai
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China
| | - Ye Xu
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China
| | - Xinxiang Li
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China
| | - Xuefeng He
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China
| | - Xinyang Zhong
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China
| | - Guichao Li
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China. .,Department of Radiation Oncology, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.
| | - Zhiyu Chen
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China. .,Department of Medical Oncology, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.
| | - Dawei Li
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China. .,Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China.
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Wang ZL, Geng HZ, Zhao XL, Zhu QY, Lin JH, Zou L, Mi Y, Hu YL, Fan SR, Chen X, Liu Z, Yang HX. [Survey of related factors of maternal venous thromboembolism in nine hospitals of China]. Zhonghua Fu Chan Ke Za Zhi 2020; 55:667-672. [PMID: 33120477 DOI: 10.3760/cma.j.cn112141-20200414-00326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate and analyze disease status and risk factors of venous thromboembolism (VTE) during pregnancy and puerperium in our country. Methods: Clinical datas were collected from 575 patients diagnosed with VTE during pregnancy and puerperium and hospitalized in nine medical institutions in our country from January 1, 2015 to November 30, 2019, and retrospectively analyzed it's disease status and risk factors. Results: (1) The proportion of VTE in pregnancy and puerperium was 50.6% (291/575) and 49.4% (284/575), respectively. Four patients died, the mortality rate was 0.7% (4/575). The cause of death was pulmonary embolism. (2) The location of VTE during pregnancy and puerperium was mainly in the lower limb vascular (76.2%, 438/575), followed by pulmonary vessels (7.1%, 41/575). (3) In the risk factors of VTE, cesarean section accounted for 32.3% (186/575), maternal advance age accounted for 27.7% (159/575), braking or hospitalization during pregnancy accounted for 13.6% (78/575), other risk factors accounted for more than 5% were previous VTE, obesity, preterm birth, assistant reproductive technology conception and so on, pre-eclampsia and multiple pregnancy accounted for 4.9% (28/575) respectively. In addition, some patients with VTE did not have any of the above risk factors, and the incidence rate was as high as 23.1% (133/575). Conclusions: The occurrence of VTE during pregnancy and puerperium is related to multiple risk factors, and could lead to matemal death, It is very necessary to screen VTE risk factors for all pregnant women, to make corresponding prevention and control measures.
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Affiliation(s)
- Z L Wang
- Department of Obstetrics,the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - H Z Geng
- Department of Obstetrics,the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - X L Zhao
- Department of Obstetrics and Gynecology,the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Q Y Zhu
- Department of Obstetrics, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - J H Lin
- Department of Obstetrics, Affiliated Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - L Zou
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430022, China
| | - Y Mi
- Department of Obstetrics, Northwest Women's and Children's Hospital, Xi'an 710061, China
| | - Y L Hu
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - S R Fan
- Department of Obstetrics and Gynecology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - X Chen
- Department of Obstetrics, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin 300100, China
| | - Z Liu
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - H X Yang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
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11
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Zhao S, Mi Y, Guan B, Zheng B, Wei P, Gu Y, Zhang Z, Cai S, Xu Y, Li X, He X, Zhong X, Li G, Chen Z, Li D. Tumor-derived exosomal miR-934 induces macrophage M2 polarization to promote liver metastasis of colorectal cancer. J Hematol Oncol 2020; 13:156. [PMID: 33213490 PMCID: PMC7678301 DOI: 10.1186/s13045-020-00991-2] [Citation(s) in RCA: 336] [Impact Index Per Article: 84.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 11/03/2020] [Indexed: 12/24/2022] Open
Abstract
Background Mounting evidence has demonstrated the vital importance of tumor-associated macrophages (TAMs) and exosomes in the formation of the premetastatic niche. However, the molecular mechanisms by which tumor-derived exosomal miRNAs interact with TAMs underlying premetastatic niche formation and colorectal cancer liver metastasis (CRLM) remain largely unknown. Methods Transmission electron microscopy and differential ultracentrifugation were used to verify the existence of exosomes. In vivo and in vitro assays were used to identify roles of exosomal miR-934. RNA pull-down assay, dual-luciferase reporter assay, etc. were applied to clarify the mechanism of exosomal miR-934 regulated the crosstalk between CRC cells and M2 macrophages. Results In the present study, we first demonstrated the aberrant overexpression of miR-934 in colorectal cancer (CRC), especially in CRLM, and its correlation with the poor prognosis of CRC patients. Then, we verified that CRC cell-derived exosomal miR-934 induced M2 macrophage polarization by downregulating PTEN expression and activating the PI3K/AKT signaling pathway. Moreover, we revealed that hnRNPA2B1 mediated miR-934 packaging into exosomes of CRC cells and then transferred exosomal miR-934 into macrophages. Interestingly, polarized M2 macrophages could induce premetastatic niche formation and promote CRLM by secreting CXCL13, which activated a CXCL13/CXCR5/NFκB/p65/miR-934 positive feedback loop in CRC cells. Conclusions These findings indicate that tumor-derived exosomal miR-934 can promote CRLM by regulating the crosstalk between CRC cells and TAMs. These findings reveal a tumor and TAM interaction in the metastatic microenvironment mediated by tumor-derived exosomes that affects CRLM. The present study also provides a theoretical basis for secondary liver cancer.
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Affiliation(s)
- Senlin Zhao
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China
| | - Yushuai Mi
- Department of Gastrointestinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, No. 247 Beiyuan Street, Jinan, 250033, China
| | - Bingjie Guan
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 85 Wujin Road, Shanghai, 200080, China
| | - Binbin Zheng
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 85 Wujin Road, Shanghai, 200080, China
| | - Ping Wei
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China.,Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.,Department of Pathology, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China
| | - Yanzi Gu
- Department of Biobank, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China
| | - Zhengxiang Zhang
- Department of Oncology, Yijishan Hospital of Wannan Medical College, No. 2 Zheshan Road, Wuhu, 241001, Anhui, China
| | - Sanjun Cai
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China
| | - Ye Xu
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China
| | - Xinxiang Li
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China
| | - Xuefeng He
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China
| | - Xinyang Zhong
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China
| | - Guichao Li
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China. .,Department of Radiation Oncology, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.
| | - Zhiyu Chen
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China. .,Department of Medical Oncology, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.
| | - Dawei Li
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China. .,Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong'an Road, Shanghai, 200032, China.
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Cheng XT, Zhang Y, Zuo XX, Yang J, Dong ML, Liu K, Mi Y, Shi Y. Analysis of the prognostic factors of triple-negative breast cancer and the clinical efficacy of postoperative radiotherapy in early cases. J Clin Oncol 2020. [DOI: 10.1200/jco.2020.38.15_suppl.e12502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e12502 Background: To explore the prognostic value of pretherapeutic peripheral blood parameters and breast imaging-reporting and data system (BI-RADS) classification of triple-negative breast cancer (TNBC) and the effect of postoperative radiotherapy in early cases. Methods: A total of 278 TNBC patients’ medical records between January 2013 and December 2018 were retrospectively collected, including white blood cells, neutrophils, lymphocytes, platelets, neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), serum tumor markers, BI-RADS classification, TNM staging and therapeutic methods. We used the log-rank test and Kaplan-Meier curves to assess the progression-free survival (PFS) of enrolled patients. Multivariate prognostic analysis was performed by the Cox regression model. Results: The median PFS of all 278 patients was 20 months (4-72 months) at the end of follow-up. Operable patients who obtained adjuvant chemotherapy had a better median PFS (20 vs 18.5 months, P= 0.018, HR = 5.943, 95% CI: 1.36-25.92) than those without. Lymph node metastasis (52%) and chest well relapse (28%) were the critical failure forms followed by other metastases (12% lungs, 9.3% bones, 4% liver and 2.7% brain) with p value less than 0.001. Multivariate analysis indicated that platelet counts > 113.5×109/L (p = 0.024), PLR ≤ 111.7 (p = 0.036) and CA15-3 ≤ 8.4 U/mL (p = 0.003) were significantly associated with the favourable prognosis of PFS in TNBC patients. Furthermore, BI-RADS of grade 2-4 had a better median PFS compared with grade of 5-6(20 vs 17.5 months, p = 0.008, HR = 2.154, 95% CI: 1.219-3.805). In subgroup analysis, forty-three early cases with pN1 stage earned additional benefits from postoperative radiotherapy in terms of low risk of distant metastasis and recurrence (p = 0.014). Residual tumor after surgery was another important factor of poor prognosis (p = 0.029). Conclusions: Adjuvant chemotherapy improved median PFS for operable TNBC patients and pretherapeutic platelets, PLR, CA15-3 and BI-RADS were the independent prognostic factors of survival. Lymph node metastasis and chest well relapse were the main patterns of treatment failure. Radiotherapy could reduce the risk of disease progression for postoperative patients with N1 stage.
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Affiliation(s)
- XT Cheng
- Department of Radiation Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Y Zhang
- Department of Radiation Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - XX Zuo
- Department of Radiation Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - J Yang
- Department of Radiation Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - ML Dong
- Department of Radiation Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - K Liu
- Department of Radiation Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Y Mi
- Department of Radiation Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yg Shi
- Department of Radiation Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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13
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Weng J, Li S, Lin H, Mei H, Liu Y, Xiao C, Zhu Z, Cai W, Ding X, Mi Y, Wen Y. PCDHGA9 represses epithelial-mesenchymal transition and metastatic potential in gastric cancer cells by reducing β-catenin transcriptional activity. Cell Death Dis 2020; 11:206. [PMID: 32231199 PMCID: PMC7105466 DOI: 10.1038/s41419-020-2398-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 03/06/2020] [Accepted: 03/09/2020] [Indexed: 12/24/2022]
Abstract
Gastric cancer (GC) has a high mortality rate, and metastasis is the main reason for treatment failure. It is important to study the mechanism of tumour invasion and metastasis based on the regulation of key genes. In a previous study comparing the expression differences between GES-1 and SGC-7901 cells, PCDHGA9 was selected for further research. In vitro and in vivo experiments showed that PCDHGA9 inhibited invasion and metastasis. A cluster analysis suggested that PCDHGA9 inhibited epithelial-mesenchymal transition (EMT) through the Wnt/β-catenin and TGF-β pathways. Laser confocal techniques and western blotting revealed that PCDHGA9 inhibited the nuclear translocation of β-catenin, regulated T cell factor (TCF)/ /lymphoid enhancer factor (LEF) transcriptional activity, directly impacted the signal transmission of the TGF-β/Smad2/3 pathway, strengthened the adhesion complex, weakened the effects of TGF-β, and blocked the activation of the Wnt pathway. In addition, PCDHGA9 expression was regulated by methylation, which was closely related to poor clinical prognosis. The aim of this study was to elucidate the molecular mechanism by which PCDHGA9 inhibits EMT and metastasis in GC to provide a new theoretical basis for identifying GC metastasis and a new target for improving the outcome of metastatic GC.
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Affiliation(s)
- Junyong Weng
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China.,Department of Gastrointestinal Surgery, Changzheng Hospital, Second Military Medical University, 200003, Shanghai, China
| | - Shanbao Li
- Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, 201800, Shanghai, China
| | - Hao Lin
- Department of Medicine II, University Hospital, Liver Centre Munich, LMU, Munich, 80539, Germany
| | - Haitao Mei
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Yang Liu
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Chao Xiao
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China.,Department of General Surgery, Shanghai Huashan Hospital, Fudan University, 200000, Shanghai, China
| | - Zhonglin Zhu
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China.,Department of General Surgery, Henan Provincial People's Hospital, 450003, Zhengzhou, Henan, China
| | - Weiwei Cai
- Department of Medicine, The Third Hospital of Quanzhou, 362000, Quanzhou, China
| | - Xusheng Ding
- Department of Gastrointestinal Surgery, Changzheng Hospital, Second Military Medical University, 200003, Shanghai, China
| | - Yushuai Mi
- Department of General Surgery, The Second Hospital of Shandong University, 250033, Jinan, Shandong, China.
| | - Yugang Wen
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China.
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Wu JY, Mi Y, Liu S, Yao L, Tang Q, He ZS, Wang XY. [Evaluating inferior vena cava wall invasion in renal cell carcinoma tumor thrombus with MRI]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:673-677. [PMID: 31420620 DOI: 10.19723/j.issn.1671-167x.2019.04.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To evaluate the diagnostic performance of MRI for the assessment of inferior vena cava (IVC) wall invasion by IVC thrombus in patients with renal cell carcinoma (RCC). METHODS We retrospectively collected patients who underwent radical nephrectomy and thrombectomy for RCC between 2010 and 2018 at Peking University First Hospital. All the patients underwent imaging on a 1.5 Tesla or 3.0 Tesla MRI scanner. Fifty-six patients met the inclusion criteria. Preoperative imaging was reviewed by two radiologists blinded to details of the patient's surgical procedure and histopathology. Two radiologists measured the maximum anterior-posterior diameter and coronal diameters of the IVC and renal vein, and the craniocaudal extent of tumor thrombus, and evaluated the MRI features of IVC thrombus, including occlusion of the IVC lumen, the margin of the tumor thrombus (smooth vs. irregular), contact of the IVC thrombus and IVC wall, and altered signal of the IVC wall. Univariable and multivariable associations of clinical and radiographic features with IVC wall invasion were evaluated by Logistic regression. RESULTS Of the 56 patients [male: 43, female: 13, mean age: (55.64±0.43) years], 17 (30.36%) were detected with IVC wall invasion, and most were clear cell carcinoma. Tumor thrombus with IVC wall invasion showed an increase in length of IVC thrombus [(7.91±3.59) cm vs. (5.94±3.57) cm, P=0.049], and more features of complete occlusion of the IVC lumen (P=0.002), irregular margin of the IVC thrombs (P=0.005), contact of the IVC thrombus and IVC wall (P=0.001), and altered signal of the low-intensity vessel wall (P<0.001), with a sensitivity of 94.12% and a specificity of 79.49%. CONCLUSION The present study indicates that MRI could be a means of evaluating RCC with IVC wall invasion, and the combination of tumor thrombus length and subjective impression of IVC wall invasion achieved a high sensitivity and specificity for diagnosis.
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Affiliation(s)
- J Y Wu
- Department of Radiology, Peking University First Hospital, Beijing 100034, China
| | - Y Mi
- Department of Urology, Peking University First Hospital, Beijing 100034, China
| | - S Liu
- Department of Radiology, Peking University First Hospital, Beijing 100034, China
| | - L Yao
- Department of Urology, Peking University First Hospital, Beijing 100034, China
| | - Q Tang
- Department of Urology, Peking University First Hospital, Beijing 100034, China
| | - Z S He
- Department of Urology, Peking University First Hospital, Beijing 100034, China
| | - X Y Wang
- Department of Radiology, Peking University First Hospital, Beijing 100034, China
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15
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Guo N, Bai RM, Qu PF, Huang P, He YP, Wang CL, Mi Y. [Influencing factors and antenatal assessment of the vaginal birth after cesarean section]. Zhonghua Fu Chan Ke Za Zhi 2019; 54:369-374. [PMID: 31262120 DOI: 10.3760/cma.j.issn.0529-567x.2019.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Objective: To explore the influencing factors of the vaginal birth after cesarean section (VBAC), and establish a model for predicting the risk of trial of the trial of labor after cesarean section (TOLAC). Methods: From January 2016 to December 2018, total 694 pregnant women who underwent TOLAC in Northwest Women's and Children's Hospital were retrospectively analyzed. Those cases were divided into two groups according to the mode of delivery: the VBAC group and the failed TOLAC group. At the same time, 700 cases in the elective repeat cesarean section (ERCS) group were randomly selected as control group. The influencing factors of VBAC were analyzed by univariate and multivariate logistic regression, and the pregnancy outcomes between the three groups were compared. Results: (1) The VBAC rate was 76.1% (528/694) and 166 women underwent the failed TOLAC (23.9%, 166/694). (2) Univariate analysis found that, the pre-pregnancy body mass index (BMI) [(22.0±3.0), (23.3±2.7) kg/m(2)], the previous vaginal delivery history [10.4%(55/528), 3.6%(6/166)], the cervical score (5.2±1.9,4.3±1.6) and the neonatal birth weight [(3 315±468), (3 484±274) g] of the VBAC group were significantly different from the failed TOLAC group (P<0.05). (3) The comparison of pregnancy outcomes: the neonatal birth weight was (3 315±468) g, and the intrapartum hemorrhage volume was (255±121) ml in the VBAC group, which were significantly lower than those in the failed TOLAC group [intrapartum hemorrhage (325±173) ml] and the ERCS group [(3 572±344) g, (281±125) ml], there were statistically significant differences in the comparison among the three groups (all P<0.05). Two cases of bladder injury occurred during cesarean section in the TOLAC failure group (1.2%,2/166). The rates of the blood transfusion, puerperal infection, 5-minute Apgar score and neonatal ICU admission among the three groups were no statistically significantly different (all P>0.05). There was no maternal or perinatal death. (4) Multivariate logistic regression analysis showed that the delivery age of pregnant women (OR=0.92, 95%CI: 0.87-0.98), pre-pregnancy BMI (OR=0.92, 95%CI:0.86-0.98), vaginal delivery history (OR=3.31, 95%CI: 1.35-8.01), cervical score (OR=1.29, 95%CI: 1.13-1.42) and the birth weight of the neonates <3 300 g (OR=3.15, 95%CI: 2.02-4.90) were independent influencing factors for VBAC. The area under curve of the receiver operating characteristic curve was 0.74. Conclusions: The influencing factors of VBAC are delivery age, pre-pregnancy BMI, vaginal delivery history, cervical score and neonatal birth weight <3 300 g. The adequate individualized management and assessment of the TOLAC may be helpful to improve the VBAC rate.
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Affiliation(s)
- N Guo
- Department of Obstetrics, Northwest Women's and Children's Hospital, Xi'an 710061, China
| | - R M Bai
- Department of Neonatology, Northwest Women's and Children's Hospital, Xi'an 710061, China
| | - P F Qu
- Translational Medicine Center, Northwest Women's and Children's Hospital, Xi'an 710061, China
| | - P Huang
- Department of Obstetrics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Y P He
- Department of Obstetrics, Northwest Women's and Children's Hospital, Xi'an 710061, China
| | - C L Wang
- Department of Obstetrics, Northwest Women's and Children's Hospital, Xi'an 710061, China
| | - Y Mi
- Department of Obstetrics, Northwest Women's and Children's Hospital, Xi'an 710061, China
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16
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Zhang J, Mi Y, Wei Y, Zhou R, Huang B. MON-007 TLR4/TLR9-MyD88-NF-KB PATHWAY IS INVOLVED IN IgAN CAUSED BY SIgA. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.762] [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: 10/26/2022] Open
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17
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Yin ZX, Mi Y, Zhai X. [Sublingual immunotherapy of Dermatophagoides farinae drops in nasal cavity local allergy]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:75-79. [PMID: 30669204 DOI: 10.13201/j.issn.1001-1781.2019.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Indexed: 06/09/2023]
Abstract
Objective:To investigate treatment effect of Sublingual immunotherapy of Dermatophagoides farinae drops in nasal cavity local allergy.MethodSelecting 60 patients as observation group,who had only nasal local allergy symptoms,allergen skin prick test and serum allergen specific IgE test were negative, but nasal secretions allergen specific IgE test and nasal mucous membrane excitation test were positive.Sublingual immunotherapy of Dermatophagoides farinae drops for three years were given to them.To detect symptom scores and VAS scores,eosinophilia counts in nasal secretion,nasal secretions allergen specific IgE test,nasal mucous membrane excitation test before treatment,after two years treatment,and three years treatment,the data of pre-therapy and post-therapy was taken for statistical analysis.ResultThere was difference(P<0.05) in the symptom scores and VAS scores of patients in observation group before treatment and after two years treatment.There was difference(P<0.05) in the eosinophilia counts in nasal secretion of patients before treatment and after two years treatment. There was difference(P<0.05) in the nasal secretions allergen specific IgE test of patients before treatment and after two years treatment. There was difference(P<0.05) in the nasal mucous membrane excitation test of patients before treatment and after two years treatment.There was no difference(P>0.05) Symptom scores and VAS scores in the patients after two years treatment and after three years treatment.Conclusion:For patients with the typical medical history and symptoms of AR,but with allergen SPT and serum allergen SIgE test negative,there was local specific hypersensitivity in nasal mucosa,but there was not accompanied by systemic sensitization.Combined with nasal secretions allergen SIgE test or allergen nasal mucosa proocation tests positive,local allergic rhinitis can be diagnosed.Sublingual immunotherapy of Dermatophagoides farinae drops in nasal cavity local allergy was effective.
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Affiliation(s)
- Z X Yin
- Department of Otorhinolaryngology, Huanhu Hospital, Tianjin,300350, China
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Lu HL, Zhang SJ, Yin GR, Mi Y, Kang F. [The clinical significance of PRL-3,VEGF expression in sinonasalsquamous cell carcinoma]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 30:1021-1024. [PMID: 29798029 DOI: 10.13201/j.issn.1001-1781.2016.13.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Indexed: 11/12/2022]
Abstract
Objective:To analyze the clinical significance of phosphatase of regenerating liver-3(PRL-3) and vascular endothelial growth factor(VEGF)expression in sinonasal squamous cell carcinomas.Method:We use immunohistochemical analysis and RT-PCR to detecte the expression of PRL-3 and VEGF protein in 62 cases of sinonasal squamous carcinoma tissues(SNSCC),30 cases of nasal polyps(NP),and 25 cases of normal nasal mucosa(NM).Result:①The expression of PRL-3 and VEGF in sinonasal squamous cell carcinoma tissues were statistically higher than in nasal polyps and normal nasal mucosa tissues (P<0.05).②The expression of PRL-3 and VEGF were not correlated with patient's age or gender(P>0.05).But the High expression of PRL-3 and VEGF in SNSCC was significantly related with advanced,lower tumor differentiation and lymph node metastasis(P<0.05).③The expression of PRL-3 and VEGF was positively correlated in sinonasal squamous cell carcinomas.Conclusion:The expression of PRL-3 and VEGF in SNSCC may involve in the regulation of tumor growth and differentiation.The expressing intensity may reflect the proliferation activity of sinonasal squamous cell carcinoma cell.PRL-3 and VEGF may promote the tumor metastasis in a synergistic manner.
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Affiliation(s)
- H L Lu
- Department of Otolaryngology,the Affiliated Hospital of Chengde Medical College,Chengde,067000,China
| | - S J Zhang
- Department of Otolaryngology,the Affiliated Hospital of Chengde Medical College,Chengde,067000,China
| | - G R Yin
- Department of Otolaryngology,the Affiliated Hospital of Chengde Medical College,Chengde,067000,China
| | - Y Mi
- Department of Otolaryngology,the Affiliated Hospital of Chengde Medical College,Chengde,067000,China
| | - F Kang
- Department of Physical Examination,the Affiliated Hospital of Chengde Medical College
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Zeng H, Yuan F, Mi Y, Xian G, Qin C, Zhang D. As an independent prognostic factor, USP6 promotes the invasion and metastasis of colon cancer. Biochem Biophys Res Commun 2018; 505:816-822. [PMID: 30297112 DOI: 10.1016/j.bbrc.2018.08.168] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 08/16/2018] [Accepted: 08/27/2018] [Indexed: 11/29/2022]
Abstract
The lack of efficient tumor invasion and metastatic biomarkers led to high mortality rates in colon cancer patients. Aberrant expression of ubiquitin-specific protease 6 (USP6) was involved in several diseases including cancer, while its role in the progression of colon cancer was still unclear. In this study, USP6 was evaluated at both mRNA and protein levels by using RT-PCR, western blot and immunohistochemistry staining analyses. The results revealed that high USP6 expression predicted poor disease-specific survival and overall survival through Kaplan-Meier analyses with log-rank tests, univariate and multivariate Cox analyses. Furthermore, cell function assay demonstrated that USP6 could promote colon cancer cells' invasion in vitro and liver metastasis in vivo. These findings indicated that high USP6 expression contributed to the progression of colon cancer and USP6 may be a valuable prognostic factor in patients with colon cancer.
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Affiliation(s)
- Hong Zeng
- Department of Critical Care Medicine, The Second Hospital of Shandong University, Jinan 250033, Shandong, China
| | - Fukang Yuan
- Department of Vascular Surgery of XuZhou Central Hospital, XuZhou Institute of Cardiovascular Disease, 199 Jiefang Road, Xuzhou, 221009, Jiangsu, China.
| | - Yushuai Mi
- Department of General Surgery, The Second Hospital of Shandong University, Jinan 250033, Shandong, China
| | - Guozhe Xian
- Department of General Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong, China
| | - Chengyong Qin
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong, China.
| | - Dongyuan Zhang
- Department of General Surgery, Qianfoshan Hospital, Shandong University, Jinan 250014, Shandong, China.
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20
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Mi Y, Liu F, Liang X, Liu S, Huang X, Sang M, Geng C. Tumor suppressor let-7a inhibits breast cancer cell proliferation, migration and invasion by targeting MAGE-A1. Neoplasma 2018; 66:54-62. [PMID: 30509089 DOI: 10.4149/neo_2018_180302n146] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 05/21/2018] [Indexed: 11/08/2022]
Abstract
Let-7 was one of the earliest discovered miRNAs and while it reportedly acts as a tumor suppressor in various solid tumors, its function in breast cancer has not been fully studied. Therefore, we examined let-7a and MAGE-A1 expression in breast tissues by qRT-PCR and found that let-7a expression significantly correlates with larger tumor size, higher histological grade (p<0.05) and is significantly lower in patients with Her-2-positive cancers and Ki-67 >14% (p=0.028 and p=0.023). MAGE-A1 expression incidence is 50.8% (33/65) and it inversely correlates with let-7a expression (p=0.008). let-7a inhibition of breast cancer cell proliferation, migration and invasion was also observed in in vitro cell culture experiments, and dual-luciferase reporter assays showed that melanoma-associated antigen A1 (MAGE-A1) was its target gene; the target comprised bases 451-457 of the 3'UTR region of the MAGE-A1 mRNA. RT-qPCR and Western blot analyses showed that let-7a inhibited MAGE-A1 expression at both the nucleic acid and protein levels. In our final co-transfection experiment, we targeted MAGE-A1 in a breast cancer cell line and observed that let-7a inhibited cell proliferation, migration and invasion. These combined results confirm that let-7a functions as a tumor suppressor by targeting MAGE-A1 in breast cancer and it therefore provides a novel target in breast cancer clinical treatment.
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Affiliation(s)
- Y Mi
- Breast Center Department, The Fourth Hospital of Hebei Medical University, Hebei Medical University, Shijiazhuang, China
| | - F Liu
- Research Center Department, The Fourth Hospital of Hebei Medical University, Hebei Medical University, Shijiazhuang, China
| | - X Liang
- Laboratory of Pathology, Hebei Cancer Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - S Liu
- Research Center Department, The Fourth Hospital of Hebei Medical University, Hebei Medical University, Shijiazhuang, China
| | - X Huang
- Department of General Surgery, The Fourth Hospital of Hebei Medical University, Hebei Medical University, Shijiazhuang, China
| | - M Sang
- Research Center Department, The Fourth Hospital of Hebei Medical University, Hebei Medical University, Shijiazhuang, China
| | - C Geng
- Breast Center Department, The Fourth Hospital of Hebei Medical University, Hebei Medical University, Shijiazhuang, China
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21
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Li H, Xu D, Han X, Ruan Q, Zhang X, Mi Y, Dong M, Guo S, Lin Y, Wang B, Li G. Dosimetry study of 18F-FMISO + PET/CT hypoxia imaging guidance on intensity-modulated radiation therapy for non-small cell lung cancer. Clin Transl Oncol 2018; 20:1329-1336. [PMID: 29623584 DOI: 10.1007/s12094-018-1864-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 03/22/2018] [Indexed: 12/15/2022]
Abstract
OBJECTIVES This study was to evaluate the feasibility of simultaneous integrated boost on tumor hypoxia area by studying the dosimetric change of hypoxia imaging guidance on intensity-modulated radiation therapy for non-small cell lung cancer (NSCLC). METHODS Five NSCLC patients with large hypoxic volume participated in this study. FDG PET/CT images were fused with CT localization images to delineate gross tumor volume. FMISO PET/CT images were fused with CT localization images to delineate hypoxic biological target volume (BTV) (tissue maximum ratio ≥ 1.3) by threshold. BTV was irradiated with 72, 78 and 84 Gy, respectively, 30 times. The dosimetry differences were compared in target volume and organ at risk between simultaneous integrated boost plans and conventional radiotherapy plans. RESULTS Dosages on BTV of NSCLC hypoxic area were increased to 72, 78 and 84 Gy, respectively, by simultaneous integrated boost intensity-modulated radiation therapy. There was no obvious difference in dosage distributions on original target volume compared with those in conventional radiotherapy. Dosages on main organ at risk in chest met the dosimetric constraint, and there was no significant difference compared with those in conventional radiotherapy. CONCLUSION It is feasible in dosiology that the dosages in NSCLC hypoxic area were added to 72, 78 and 84 Gy by simultaneous integrated boost with the guidance of 18F-FMISO PET/CT.
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Affiliation(s)
- H Li
- Radiotherapy Department, The First Affiliated Hospital of Zhengzhou University, 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China
| | - D Xu
- Radiotherapy Department, The First Affiliated Hospital of Zhengzhou University, 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China
| | - X Han
- Nuclear Medicine Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Q Ruan
- Nuclear Medicine Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - X Zhang
- Radiotherapy Department, The First Affiliated Hospital of Zhengzhou University, 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China
| | - Y Mi
- Radiotherapy Department, The First Affiliated Hospital of Zhengzhou University, 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China
| | - M Dong
- Radiotherapy Department, The First Affiliated Hospital of Zhengzhou University, 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China
| | - S Guo
- Radiotherapy Department, Zhengzhou Central Hospital, Zhengzhou, China
| | - Y Lin
- Radiotherapy Department, The First Affiliated Hospital of Zhengzhou University, 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China
| | - B Wang
- Radiotherapy Department, The First Affiliated Hospital of Zhengzhou University, 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China
| | - G Li
- Radiotherapy Department, The First Affiliated Hospital of Zhengzhou University, 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China.
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Mi Y, Zhao S, Zhou C, Weng J, Li J, Wang Z, Sun H, Tang H, Zhang X, Sun X, Peng Z, Wen Y. Downregulation of homeobox gene Barx2 increases gastric cancer proliferation and metastasis and predicts poor patient outcomes. Oncotarget 2018; 7:60593-60608. [PMID: 27533254 PMCID: PMC5312404 DOI: 10.18632/oncotarget.11260] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Accepted: 07/19/2016] [Indexed: 01/09/2023] Open
Abstract
Barx2 is a Bar family homeodomain transcription factor shown to play a critical role in cell adhesion and cytoskeleton remodeling, key processes in carcinogenesis and metastasis. Using quantitative real-time PCR, Western blotting, and immunohistochemistry, we found that Barx2 is expressed at lower levels in human gastric cancer (GC) tissues than in adjacent normal mucosa. In a multivariate analysis, Barx2 expression emerged as an independent prognostic factor for disease-free and overall survival. Kaplan-Meier survival analysis showed a trend toward even shorter overall survival in the patient group with Barx2-negative tumors, independent of advanced UICC stage and tumor relapse. Using in vitro and in vivo assays, we demonstrated that under normal conditions Barx2 inhibited GC cell proliferation and invasiveness through inhibition of the Wnt/β-catenin signaling pathway. These findings indicate that reduction or loss of Barx2 dis-inhibits GC cell proliferation and invasion, and that reduction in Barx2 could serve as an independent prognostic biomarker for poor outcome in GC patients.
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Affiliation(s)
- Yushuai Mi
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080 Shanghai, China
| | - Senlin Zhao
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080 Shanghai, China.,Department of Oncology and Department of Clinical and Experimental Medicine, Linkoping University, SE-581 85 Linkoping, Sweden
| | - Chongzhi Zhou
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080 Shanghai, China
| | - Junyong Weng
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080 Shanghai, China
| | - Jikun Li
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080 Shanghai, China
| | - Zhanshan Wang
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080 Shanghai, China
| | - Huimin Sun
- Department of Pathology, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080 Shanghai, China
| | - Huamei Tang
- Department of Pathology, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080 Shanghai, China
| | - Xin Zhang
- Department of Pathology, Zhejiang Provincial People's Hospital, 310014 Hangzhou Zhejiang, China
| | - Xiaofeng Sun
- Department of Oncology and Department of Clinical and Experimental Medicine, Linkoping University, SE-581 85 Linkoping, Sweden
| | - Zhihai Peng
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080 Shanghai, China
| | - Yugang Wen
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080 Shanghai, China.,Department of Oncology and Department of Clinical and Experimental Medicine, Linkoping University, SE-581 85 Linkoping, Sweden
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Weng J, Xiao J, Mi Y, Fang X, Sun Y, Li S, Qin Z, Li X, Liu T, Zhao S, Zhou L, Wen Y. PCDHGA9 acts as a tumor suppressor to induce tumor cell apoptosis and autophagy and inhibit the EMT process in human gastric cancer. Cell Death Dis 2018; 9:27. [PMID: 29348665 PMCID: PMC5833845 DOI: 10.1038/s41419-017-0189-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [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: 08/10/2017] [Revised: 11/18/2017] [Accepted: 11/27/2017] [Indexed: 12/14/2022]
Abstract
The results of a cDNA array revealed that protocadherin gamma subfamily A, 9 (PCDHGA9) was significantly decreased in SGC-7901 gastric cancer (GC) cells compared with GES-1 normal gastric cells and was strongly associated with the Wnt/β-catenin and transforming growth factor-β (TGF-β)/Smad2/3 signaling pathway. As a member of the cadherin family, PCDHGA9 functions in both cell-cell adhesion and nuclear signaling. However, its role in tumorigenicity or metastasis has not been reported. In the present study, we found that PCDHGA9 was decreased in GC tissues compared with corresponding normal mucosae and its expression was correlated with the GC TNM stage, the UICC stage, differentiation, relapse, and metastasis (p < 0.01). Multivariate Cox analysis revealed that PCDHGA9 was an independent prognostic indicator for overall survival (OS) and disease-free survival (DFS) (p < 0.01). The effects of PCDHGA9 on GC tumor growth and metastasis were examined both in vivo and in vitro. PCDHGA9 knockdown promoted GC cell proliferation, migration, and invasion, whereas PCDHGA9 overexpression inhibited GC tumor growth and metastasis but induced apoptosis, autophagy, and G1 cell cycle arrest. Furthermore, PCDHGA9 suppressed epithelial-mesenchymal transition (EMT) induced by TGF-β, decreased the phosphorylation of Smad2/3, and inhibited the nuclear translocation of pSmad2/3. Our results suggest that PCDHGA9 might interact with β-catenin to prevent β-catenin from dissociating in the cytoplasm and translocating to the nucleus. Moreover, PCDHGA9 overexpression restrained cell proliferation and reduced the nuclear β-catenin, an indicator of Wnt/β-catenin pathway activation, suggesting that PCDHGA9 negatively regulates Wnt signaling. Together, these data indicate that PCDHGA9 acts as a tumor suppressor with anti-proliferative activity and anti-invasive ability, and the reduction of PCDHGA9 could serve as an independent prognostic biomarker in GC.
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Affiliation(s)
- Junyong Weng
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Jingbo Xiao
- Shanghai Key Laboratory of Pancreatic Diseases & Department of Gastroenterology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 200080, Shanghai, China
| | - Yushuai Mi
- Department of General Surgery, The Second Hospital of Shandong University, Jinan, 250033, Shandong, China
| | - Xu Fang
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Yahuang Sun
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Shanbao Li
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Zhiwei Qin
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Xu Li
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Tingting Liu
- Department of Pathology, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Senlin Zhao
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Lisheng Zhou
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China.
| | - Yugang Wen
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China.
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Liu Y, Wu X, Mi Y, Zhang B, Gu S, Liu G, Li X. PLGA nanoparticles for the oral delivery of nuciferine: preparation, physicochemical characterization and in vitro/in vivo studies. Drug Deliv 2017; 24:443-451. [PMID: 28165858 PMCID: PMC8241190 DOI: 10.1080/10717544.2016.1261381] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
This article reports a promising approach to enhance the oral delivery of nuciferine (NUC), improve its aqueous solubility and bioavailability, and allow its controlled release as well as inhibiting lipid accumulation. NUC-loaded poly lactic-co-glycolic acid nanoparticles (NUC-PLGA-NPs) were prepared according to a solid/oil/water (s/o/w) emulsion technique due to the water-insolubility of NUC. PLGA exhibited excellent loading capacity for NUC with adjustable dosing ratios. The drug loading and encapsulation efficiency of optimized formulation were 8.89 ± 0.71 and 88.54 ± 7.08%, respectively. NUC-PLGA-NPs exhibited a spherical morphology with average size of 150.83 ± 5.72 nm and negative charge of -22.73 ± 1.63 mV, which are suitable for oral administration. A sustained NUC released from NUC-PLGA-NPs with an initial exponential release owing to the surface associated drug followed by a slower release of NUC, which was entrapped in the core. In addition, ∼77 ± 6.67% was released in simulating intestinal juice, while only about 45.95 ± 5.2% in simulating gastric juice. NUC-PLGA-NPs are more efficient against oleic acid (OA)-induced hepatic steatosis in HepG2 cells when compared to naked NUC (n-NUC, *p < 0.05). The oral bioavailability of NUC-PLGA-NPs group was significantly higher (**p < 0.01) and a significantly decreased serum levels of total cholesterol (TC), triglycerides (TG) and low-density lipoprotein cholesterol (LDL-C), as well as a higher concentration of high-density lipoprotein cholesterol (HDL-C) was observed, compared with that of n-NUC treated group. These findings suggest that NUC-PLGA-NPs hold great promise for sustained and controlled drug delivery with improved bioavailability to alleviating lipogenesis.
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Affiliation(s)
- Ying Liu
- a Department of Clinical Pharmacy
| | - Xin Wu
- a Department of Clinical Pharmacy
| | | | - Bimeng Zhang
- c Department of Acupuncture and Moxibustion, Shanghai General Hospital , Shanghai Jiao Tong University School of Medicine , Shanghai , PR China
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He Y, Tan D, Mi Y, Bai B, Jiang D, Zhou X, Ji S. Effect of epigallocatechin-3-gallate on acrylamide-induced oxidative stress and apoptosis in PC12 cells. Hum Exp Toxicol 2017; 36:1087-1099. [PMID: 27920337 DOI: 10.1177/0960327116681648] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Acrylamide (ACR) is a chemical intermediate utilized in industry. ACR is also formed during heating of foods containing carbohydrates and amino acids. Therefore, humans are widely exposed to ACR, and ACR neurotoxicity in humans is a significant public health issue attracting wide attention. In this study, we investigated the potential neuroprotective effects of epigallocatechin-3-gallate (EGCG), the most abundant polyphenolic compound in green tea, in PC12 cells treated with ACR. ACR-treated PC12 cells pretreated with various concentrations of EGCG (2.5, 5 and 10 μM) for 24 h had increased viability and acetylcholinesterase activity and reduced apoptosis and necrosis compared to cells exposed to ACR alone. EGCG reduced the expression of bax mRNA, decreased cytochrome c release, reduced intracellular calcium levels, inactivated caspase 3 and increased mitochondrial membrane potential, suggesting that EGCG prevents ACR-induced apoptosis through a mitochondrial-mediated pathway. In addition, EGCG inhibited the formation of reactive oxygen species and lipid peroxidation while enhancing superoxide dismutase activity and glutathione levels, thereby reducing oxidative stress. Our results indicate that pretreatment of PC12 cells with EGCG attenuates ACR-induced apoptosis by reducing oxidative stress. Therefore, drinking green tea may reduce nerve injury induced by ACR.
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Affiliation(s)
- Y He
- College of Food, Shenyang Agricultural University, Shenhe District, Shenyang, People's Republic of China
| | - D Tan
- College of Food, Shenyang Agricultural University, Shenhe District, Shenyang, People's Republic of China
| | - Y Mi
- College of Food, Shenyang Agricultural University, Shenhe District, Shenyang, People's Republic of China
| | - B Bai
- College of Food, Shenyang Agricultural University, Shenhe District, Shenyang, People's Republic of China
| | - D Jiang
- College of Food, Shenyang Agricultural University, Shenhe District, Shenyang, People's Republic of China
| | - X Zhou
- College of Food, Shenyang Agricultural University, Shenhe District, Shenyang, People's Republic of China
| | - S Ji
- College of Food, Shenyang Agricultural University, Shenhe District, Shenyang, People's Republic of China
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Zhao S, Sun H, Jiang W, Mi Y, Zhang D, Wen Y, Cheng D, Tang H, Wu S, Yu Y, Liu X, Cui W, Zhang M, Sun X, Zhou Z, Peng Z, Yan D. miR-4775 promotes colorectal cancer invasion and metastasis via the Smad7/TGFβ-mediated epithelial to mesenchymal transition. Mol Cancer 2017; 16:12. [PMID: 28095858 PMCID: PMC5240405 DOI: 10.1186/s12943-017-0585-z] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [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: 08/09/2016] [Accepted: 01/04/2017] [Indexed: 02/05/2023] Open
Abstract
Background Despite advancements in the diagnosis and treatment of colorectal cancer (CRC), many patients die because of tumor metastasis or recurrence. Therefore, identifying new prognostic markers and elucidating the mechanisms of CRC metastasis and recurrence will help to improve the prognosis of the disease. As dysregulation of microRNAs is strongly related to cancer progression, the aim of this study was to identify the role of miR-4775 in the prognosis of CRC patients and the underling mechanisms involved in CRC progression. Methods qPCR and in situ hybridization were used to evaluate the expression of miR-4775 in 544 pairs of paraffin-embedded normal and CRC tissues. Kaplan–Meier analysis with the log-rank test was used for survival analyses. Immunohistochemical staining was applied to investigate the expression of miR-4775-regulated Smad7/TGFβ pathway-associated markers. In vitro and in vivo invasion and metastasis assays were used to explore the function of miR-4775 in the progression of CRC. Results miR-4775 was identified as a high-risk factor for CRC metastasis and recurrence, with high levels predicting poor survival among the 544 studied CRC patients. Furthermore, high miR-4775 expression promoted the invasion of CRC cells as well as metastasis and the epithelial to mesenchymal transition (EMT) via Smad7-mediated activation of TGFβ signaling both in vitro and in vivo. Downregulating miR-4775 or overexpressing Smad7 reversed the tumor-promoting roles of miR-4775/Smad7/TGFβ in vitro and in vivo. Conclusion miR-4775 promotes CRC metastasis and recurrence in a Smad7/TGFβ signaling-dependent manner, providing a new therapeutic target for inhibiting the metastasis or recurrence of the disease. Electronic supplementary material The online version of this article (doi:10.1186/s12943-017-0585-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Senlin Zhao
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China
| | - Hongcheng Sun
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China
| | - Weiliang Jiang
- Department of Gastroenterology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China
| | - Yushuai Mi
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China
| | - Dongyuan Zhang
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China
| | - Yugang Wen
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China
| | - Dantong Cheng
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China
| | - Huamei Tang
- Department of Pathology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China
| | - Shaohan Wu
- Department of General Surgery, The Second Affiliated Hospital of Jiaxing College, 1518 Huancheng North Road, Jiaxing, Zhejiang, 314000, China
| | - Yang Yu
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China
| | - Xisheng Liu
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China
| | - Weiyingqi Cui
- Department of Oncology and Department of Clinical and Experimental Medicine, Linköping University, SE-581 83, Linköping, Sweden
| | - Meng Zhang
- Department of Pathology, Fudan University, Shanghai Cancer Center, 270 Dongan Road, 200030, Shanghai, China
| | - Xiaofeng Sun
- Department of Oncology and Department of Clinical and Experimental Medicine, Linköping University, SE-581 83, Linköping, Sweden
| | - Zongguang Zhou
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, No. 37 Guo Xue Xiang Street, Chengdu, 610041, Sichuan, China
| | - Zhihai Peng
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China.
| | - Dongwang Yan
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China.
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Mi Y, Zhang D, Jiang W, Weng J, Zhou C, Huang K, Tang H, Yu Y, Liu X, Cui W, Zhang M, Sun X, Zhou Z, Peng Z, Zhao S, Wen Y. miR-181a-5p promotes the progression of gastric cancer via RASSF6-mediated MAPK signalling activation. Cancer Lett 2016; 389:11-22. [PMID: 28043911 DOI: 10.1016/j.canlet.2016.12.033] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 12/21/2016] [Accepted: 12/22/2016] [Indexed: 02/05/2023]
Abstract
We previously discovered that Ras association domain family member 6 (RASSF6) was downregulated and predicted poor prognosis in GC patients. However, the mechanisms of the down regulation of RASSF6 in GC remained unclear. Increasing evidence indicates that dysregulation of microRNAs promotes the progression of cancer through the repression of tumour suppressors. Here, we identified miR-181a-5p as a novel regulator of RASSF6 in GC. Functionally, ectopic expression or silencing of miR-181a-5p, respectively, promoted or inhibited GC cell proliferation, colony formation and cell cycle transition, as well as enhanced or prevented the invasion, metastasis of GC cells and epithelial to mesenchymal transition of GC cells in vitro and in vivo. Molecularly, miR-181a-5p functioned as an onco-miRNA by activating the RASSF6-regulated MAKP pathway. Overexpression or silencing of RASSF6 could partially reverse the effects of the overexpression or repression of miR-181a-5p on GC progress caused by activation of the MAKP pathway in vitro and in vivo. Clinically, high miR-181a-5p expression predicted poor survival in GC patients, especially combined with low RASSF6 expression. Collectively, we identified miR-181a-5p as an onco-miRNA, which acts by directly repressing RASSF6 in GC.
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Affiliation(s)
- Yushuai Mi
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Dongyuan Zhang
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Weiliang Jiang
- Department of Gastroenterology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Junyong Weng
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Chongzhi Zhou
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Kejian Huang
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Huamei Tang
- Department of Pathology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Yang Yu
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Xisheng Liu
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Weiyingqi Cui
- Department of Oncology, Linköping University, Linköping, Sweden; Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.
| | - Meng Zhang
- Department of Pathology, Shanghai Cancer Center, Fudan University, Shanghai, China.
| | - Xiaofeng Sun
- Department of Oncology, Linköping University, Linköping, Sweden; Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.
| | - Zongguang Zhou
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Zhihai Peng
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Senlin Zhao
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Yugang Wen
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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Mi Y, Zhao S, Zhang W, Zhang D, Weng J, Huang K, Sun H, Tang H, Zhang X, Sun X, Peng Z, Wen Y. Down-regulation of Barx2 predicts poor survival in colorectal cancer. Biochem Biophys Res Commun 2016; 478:67-73. [DOI: 10.1016/j.bbrc.2016.07.091] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 07/20/2016] [Indexed: 01/20/2023]
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Zhao S, Tang H, Yan D, Fan J, Sun H, Wen Y, Yu F, Cui F, Zhang D, Xue Y, Liu C, Yue B, Chen J, Wang J, Wang X, Zhang M, Yu Y, Jiang W, Liu X, Mi Y, Zhou Z, Qin X, Peng Z. DDA1 promotes stage IIB-IIC colon cancer progression by activating NFκB/CSN2/GSK-3β signaling. Oncotarget 2016; 7:19794-812. [PMID: 26942699 PMCID: PMC4991419 DOI: 10.18632/oncotarget.7847] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 02/06/2016] [Indexed: 02/05/2023] Open
Abstract
Conventional high-recurrence risk factors are not sufficient to predict post-operative risk of tumor recurrence or sensitivity to 5-fluorouracil (5-FU)-based chemotherapy for stage II colon cancer. DDA1, an evolutionarily conserved gene located at 19p13.11, may be involved in the activation of nuclear factor kappaB (NFκB). This study aimed to investigate whether DDA1 contributes to tumorigenesis and progression of stage II colon cancer via activation of the NFκB pathway. We found that positive expression of DDA1 alone or in combination with p65 nuclear translocation correlated with increased risk of tumor recurrence in patients with stage IIB-IIC colon cancer. DDA1 overexpression in colon cancer lines promoted cell proliferation, facilitated cell cycle progression, inhibited 5-FU-induced apoptosis, enhanced invasion, and induced the epithelial-mesenchymal transition. Suppression of DDA1 inhibited tumor progression, and reduced tumor growth in vivo. We also demonstrated that DDA1-mediated tumor progression is associated with the activation of the NFκB/COP9 signalosome 2(CSN2)/glycogen synthase kinase3β (GSK3β) pathway. These results indicate that DDA1 promotes colon cancer progression through activation of NFκB/CSN2/GSK3β signaling. DDA1, together with NFκB activation status, may serve as a sensitive biomarker for tumor recurrence risk and prognosis in patients with stage IIB-IIC colon cancers.
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Affiliation(s)
- Senlin Zhao
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Huamei Tang
- Department of Pathology, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Dongwang Yan
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Junwei Fan
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Hongcheng Sun
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Yugang Wen
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Fudong Yu
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Feifei Cui
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Dongyuan Zhang
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Yingming Xue
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Chenchen Liu
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Ben Yue
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Jian Chen
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Jingtao Wang
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Xiao Wang
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Meng Zhang
- Department of Pathology, Fudan University Affiliated Shanghai Cancer Center, Shanghai, China
| | - Yang Yu
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Weiliang Jiang
- Department of Gastroenterology, Shanghai First People's Hospital, Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Xisheng Liu
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Yushuai Mi
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Zongguang Zhou
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Xuebin Qin
- Department of Neuroscience, Temple University School of Medicine, Philadelphia, PA, USA
| | - Zhihai Peng
- Department of General Surgery, Shanghai First People's Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai, China
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Xu J, Wang LN, Zhu CH, Fan DD, Ma XX, Mi Y, Xing JY. Co-expression of recombinant human prolyl with human collagen α1 (III) chains in two yeast systems. Lett Appl Microbiol 2015; 61:259-66. [PMID: 26031396 DOI: 10.1111/lam.12447] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 05/23/2015] [Accepted: 05/25/2015] [Indexed: 11/30/2022]
Abstract
UNLABELLED In this study, we co-expressed the human prolyl 4-hydroxylases (P4H) with human collagen α1 (III) (COL3A1) in an inducible system: Pichia pastoris (pPICZB), and one constitutive system: P. pastoris (pGAPZαB). The P4H catalyses the post-translational hydroxylation of proline residues in collagen strands. Conventional protein expression system such as bacteria and yeasts, which lack endogenous P4H, are not efficient for the production of recombinant collagen. In this study, the P4H gene was constructed in pGAPZαB plasmid and pPICZB plasmid respectively. These two plasmids were transformed in P. pastoris #1 that carrying COL3A1. Colony PCR analysis and sequencing after electroporation P. pastoris GS115 showed that the target gene had inserted successfully. The results of reverse transcript-qPCR, SDS-PAGE, Western blotting and LC-MS/MS analysis of the rhCOL3A1 demonstrated that the P4H was expressed successfully. Besides, it is noted that low copy number, constitutive system was suitable for hydroxylated rhCOL3A1. SIGNIFICANCE AND IMPACT OF THE STUDY Successful co-expression of recombinant human collagen α1 (III) (rhCOL3A1) and human prolyl 4-hydroxylases (P4H) in Picha pastoris GS115, simultaneously results in the acquisition of rhCOL3A1 with hydroxylation of proline (Hyp). Further, this experiment also discusses that the high or low copy numbers and different promoters affect the Hyp degree of rhCOL3A1. Selecting more appropriate strains can express high degree Hyp of rhCOL3A1. This work will be helpful to the collagen structure study.
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Affiliation(s)
- J Xu
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Shaanxi, China.,Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of chemical engineering, Northwest University, Xi'an, China
| | - L N Wang
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Shaanxi, China.,Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of chemical engineering, Northwest University, Xi'an, China
| | - C H Zhu
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Shaanxi, China.,Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of chemical engineering, Northwest University, Xi'an, China
| | - D D Fan
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Shaanxi, China.,Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of chemical engineering, Northwest University, Xi'an, China
| | - X X Ma
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Shaanxi, China.,Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of chemical engineering, Northwest University, Xi'an, China
| | - Y Mi
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Shaanxi, China.,Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of chemical engineering, Northwest University, Xi'an, China
| | - J Y Xing
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Shaanxi, China.,Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of chemical engineering, Northwest University, Xi'an, China
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Zhang Q, Zhang Q, Li Q, Liu B, Wang Y, Lin D, Zhou C, Li W, Tang K, Tian Z, Wang M, Wang J, Mi Y. Monitoring of WT1 and its target gene IRF8 expression in acute myeloid leukemia and their significance. Int J Lab Hematol 2014; 37:e67-71. [PMID: 25387409 DOI: 10.1111/ijlh.12309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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)
- Q Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Q Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Q Li
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - B Liu
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | | | - D Lin
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - C Zhou
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - W Li
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - K Tang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Z Tian
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - M Wang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - J Wang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Y Mi
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China.
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Dong XJ, Luo XD, Xiong L, Mi Y, Hu LN. Effects of energy controllable steep pulses on intracellular calcium concentration and cell membrane potential. Eur Rev Med Pharmacol Sci 2014; 18:680-688. [PMID: 24668708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND AND OBJECTIVES Our previous experiments showed that steep pulses could kill tumor cells, but the mechanism is unclear yet. This study was to probe the effects of different dosages of energy controllable steep pulses on intracellular concentration of dissociative calcium ion ([Ca2+]i) and cell membrane potential. MATERIALS AND METHODS The mammary carcinoma cells MDA-MB-231 were divided into control group and 5 different dosages of Energy Controllable Steep Pulses (ECSP) treatment groups. The calcium ion in each group was labeled by Fluo-3/AM individually and the cell membrane potential was labeled by DiBAC4 (3). The mean fluorescence intensity of fluorescent probe in mammary carcinoma cells was observed in quiet state by laser confocal microscopy after ECSP treatment The changes of calcium concentration and cell membrane potential in cells after ECSP treatment were analyzed. The changes of intracellular [Ca2+]i after ECSP treatment were also observed with and without calcium ion outside of the cells. RESULTS The calcium ion outside of cells influx with lower dosage of pulse in quiet state. With the dosage increase, the intracellular calcium ion outflow. In real time kinetic detection, the mean fluorescence intensity of intracellular calcium ion was increased with the pulse electric field intensity raised in the lower ECSP. When the voltage was 285V, frequency was 100Hz, the [Ca2+]i decreased. The increase of intracellular calcium ion concentration was decreased without calcium ion than with calcium ion outside of cells, but still raised gradually. The lower dosage of ECSP could induce the fluorescence intensity of DiBAC4 (3) in cells increase, which showed that the lower dosage of ECSP could induce the depolarization of cells. With the dosage raised, the fluorescence intensity of DiBAC4 (3) in cells attenuated. This dosage of ECSP could induce the superpolarization of cell membrane. CONCLUSIONS The lower dosage of ECSP can induce the depolarization of cell membrane and induce the inter flow of calcium ion outside of cell membrane. The higher dosage of ECSP can directly destroy the cell membrane and induce the superpolarization of cell membrane, then induce the outflow of intracellular calcium ion which causes the necrosis of tumor cells.
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Affiliation(s)
- X-J Dong
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
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Zhang F, Mi Y, Qi JL, Li JW, Si M, Guan BC, Du XN, An HL, Zhang HL. Modulation of K(v)7 potassium channels by a novel opener pyrazolo[1,5-a]pyrimidin-7(4H)-one compound QO-58. Br J Pharmacol 2013; 168:1030-42. [PMID: 23013484 DOI: 10.1111/j.1476-5381.2012.02232.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Revised: 08/22/2012] [Accepted: 09/17/2012] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND AND PURPOSE Modulation of K(v)7/M channel function represents a relatively new strategy to treat neuronal excitability disorders such as epilepsy and neuropathic pain. We designed and synthesized a novel series of pyrazolo[1,5-a] pyrimidin-7(4H)-one compounds, which activate K(v)7 channels. Here, we characterized the effects of the lead compound, QO-58, on K(v)7 channels and investigated its mechanism of action. EXPERIMENTAL APPROACH A perforated whole-cell patch technique was used to record K(v)7 currents expressed in mammalian cell lines and M-type currents from rat dorsal root ganglion neurons. The effects of QO-58 in a rat model of neuropathic pain, chronic constriction injury (CCI) of the sciatic nerve, were also examined. KEY RESULTS QO-58 increased the current amplitudes, shifted the voltage-dependent activation curve in a more negative direction and slowed the deactivation of K(v)7.2/K(v)7.3 currents. QO-58 activated K(v)7.1, K(v)7.2, K(v)7.4 and K(v)7.3/K(v)7.5 channels with a more selective effect on K(v)7.2 and K(v)7.4, but little effect on K(v)7.3. The mechanism of QO-58's activation of K(v)7 channels was clearly distinct from that used by retigabine. A chain of amino acids, Val(224)Val(225)Tyr(226), in K(v)7.2 was important for QO-58 activation of this channel. QO-58 enhanced native neuronal M currents, resulting in depression of evoked action potentials. QO-58 also elevated the pain threshold of neuropathic pain in the sciatic nerve CCI model. CONCLUSIONS AND IMPLICATIONS The results indicate that QO-58 is a potent modulator of K(v)7 channels with a mechanism of action different from those of known K(v)7 openers. Hence, QO-58 shows potential as a treatment for diseases associated with neuronal hyperexcitability.
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Affiliation(s)
- F Zhang
- The Key Laboratory of Neural and Vascular Biology, Ministry of Education, Shijiazhuang, China.
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Li HJ, Wang CY, Mi Y, Du CG, Cao GF, Sun XC, Liu DJ, Shorgan B. FasL-induced apoptosis in bovine oocytes via the Bax signal. Theriogenology 2013; 80:248-55. [PMID: 23755802 DOI: 10.1016/j.theriogenology.2013.04.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [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: 08/07/2012] [Revised: 03/20/2013] [Accepted: 04/10/2013] [Indexed: 11/30/2022]
Abstract
The factor associated suicide (Fas) and its ligand (FasL) signaling is an important regulatory pathway of apoptosis in mammalian follicles. However, whether apoptosis in bovine oocytes is regulated by the Fas-FasL signaling pathway remains unknown. In this study, localization of Fas and FasL in immature oocytes and FasL in cumulus cells were examined using immunofluorescence staining. In addition, exogenous FasL was added to an in vitro culture system to investigate apoptotic changes in bovine oocytes, using annexin-V and terminal uridine nick-end labeling staining, and real-time quantitative polymerase chain reaction. In this study, Fas was expressed in immature oocytes, whereas FasL was expressed in cumulus cells, but not in immature oocytes; annexin-V- and terminal uridine nick-end labeling-positive rates of oocytes treated with 2, 10, or 50 ng/mL FasL were higher than those of control oocytes (P < 0.05); and oocytes from the three treatment groups had higher expression levels of Fas and B cell lymphoma/leukemia-2 associated X than those in the control group (P < 0.05). Taken together, we concluded that the Fas-FasL signaling pathway was involved in regulation of bovine oocyte apoptosis, perhaps related to B cell lymphoma/leukemia-2 associated X upregulation.
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Affiliation(s)
- H-J Li
- Key Laboratory of Clinical Diagnosis and Treatment Technology in Animal Disease, Ministry of Agriculture, Hohhot, China.
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Lin J, Jia Y, Zeng W, Mi Y, Zhang C. Basic FGF Promotes Proliferation of Ovarian Granulosa Cells in the Laying Chickens Via FGFR1 and PKC Pathway. Reprod Domest Anim 2011; 47:135-42. [DOI: 10.1111/j.1439-0531.2011.01813.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Li C, Hu LN, Dong XJ, Sun CX, Mi Y. High-intensity electric pulses induce mitochondria-dependent apoptosis in ovarian cancer xenograft mice. Int J Gynecol Cancer 2008; 18:1258-61. [PMID: 18217966 DOI: 10.1111/j.1525-1438.2007.01182.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Human ovarian cancer models were established in nude mice by transplanting SKOV(3) cells, and then tumors were exposed to high-intensity electric pulses with a voltage 1000 V, frequency of 1000 Hz, and duration of 250 ns for 1 min. Mitochondria permeability transition pore (PTP) was inspected by cofocal microscope; cytochrome C (Cyt C) and apoptosis-induced factor (AIF) were determined by immunohistochemistry; and voltage-dependent anion channel (VDAC) was measured by immunofluorescence. High-intensity electric pulses exposure led to increases of PTP, Cyt C, and AIF and a decrease of VDAC. These findings revealed that high-intensity electric pulses activated mitochondria electroporation, apoptosis was realized via mitochondria pathway.
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Affiliation(s)
- C Li
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
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Abstract
P-glycoprotein (P-gp) pumps multiple types of drugs out of the cell, using energy generated from ATP, and confers multidrug resistance (MDR) on cancer cells. ZD6474 is an orally active, selective inhibitor of the vascular endothelial growth factor receptor, epidermal growth factor receptor, and rearranged during transfection tyrosine kinases. This study was designed to examine whether ZD6474 reverses P-gp-mediated MDR in cancer cells. Here, we show that clinically achievable levels of ZD6474 reverse P-gp-mediated MDR of the P-gp-overexpressing cell lines derived from breast cancer, MCF-7/adriamycin (ADR), and human oral epidermoid carcinoma, KBV200 to ADR, docetaxel, and vinorelbine. This ability to reverse the P-gp-mediated resistance is comparable to that of another frequently used reversal agent known as verapamil. ZD6474 itself moderately inhibits the proliferation of both MCF-7 and MCF-7/ADR cells with almost equal activity, but its inhibitory effect is not altered by co-incubation with verapamil, suggesting that ZD6474 may not be a substrate of P-gp. In addition, ZD6474 increases the intracellular accumulation of the P-gp substrate, rhodamine-123, and ADR, by enhancing the uptake and/or decreasing the efflux of these compounds in resistant cells. Further studies show that ZD6474 stimulates ATPase activity in a dose-dependent manner, which is required for the proper function of P-gp. In contrast, ZD6474 does not inhibit the expression level of P-gp. Our results suggest that ZD6474 is capable of reversing MDR in cancer cells by directly inhibiting the function of P-gp, a finding that may have clinical implications for ZD6474.
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Affiliation(s)
- Y Mi
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - L Lou
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- E-mail:
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Zhang X, Kong B, Tsui OKC, Yang X, Mi Y, Chan CM, Xu B. Effect of pattern topology on the self-cleaning properties of textured surfaces. J Chem Phys 2007; 127:014703. [PMID: 17627360 DOI: 10.1063/1.2748383] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The water contact angle and self-cleaning property of microfabricated surface textures possessing different topologies are compared. In one kind of surface textures, the protruded regions form a connected square network. In the other kind of surface textures, the protruded regions form a regular array of square posts. We find that the water apparent contact angle of the connected textures agrees with the Cassie equation [Discuss. Faraday Soc. 3, 11 (1948)], but that of the disconnected textures is much larger. Nevertheless, the disconnected textures exhibit inferior self-cleaning property, contrary to conventional conception. We discuss the possible reasons for these observations.
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Affiliation(s)
- Xueyun Zhang
- Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
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Ren QG, Hua Y, Shen H, Zhong L, Jin CZ, Mi Y, Yao HY, Xie YN, Wei SQ, Zhou LW. Cytochemical behavior of rare earth ions in Euglena gracilis studied by XAFS. J Radioanal Nucl Chem 2007. [DOI: 10.1007/s10967-007-0529-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [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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Kim JL, Elfman L, Mi Y, Wieslander G, Smedje G, Norbäck D. Indoor molds, bacteria, microbial volatile organic compounds and plasticizers in schools--associations with asthma and respiratory symptoms in pupils. Indoor Air 2007; 17:153-63. [PMID: 17391238 DOI: 10.1111/j.1600-0668.2006.00466.x] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
UNLABELLED We investigated asthma and atopy in relation to microbial and plasticizer exposure. Pupils in eight primary schools in Uppsala (Sweden) answered a questionnaire, 1014 (68%) participated. Totally, 7.7% reported doctor-diagnosed asthma, 5.9% current asthma, and 12.2% allergy to pollen/pets. Wheeze was reported by 7.8%, 4.5% reported daytime breathlessness, and 2.0% nocturnal breathlessness. Measurements were performed in 23 classrooms (May-June), 74% had <1000 ppm CO(2) indoors. None had visible mold growth or dampness. Mean total microbial volatile organic compound (MVOC) concentration was 423 ng/m(3) indoors and 123 ng/m(3) outdoors. Indoor concentration of TMPD-MIB (2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, Texanol) and TMPD-DIB (2,2,4-trimethyl-1,3-pentanediol diisobutyrate, TXIB), two common plasticizers, were 0.89 and 1.64 microg/m(3), respectively. MVOC and plasticizer concentration were correlated (r = 0.5; P < 0.01). Mold concentration was 360 cfu/m(3) indoors and 980 cfu/m(3) outdoors. At higher indoor concentrations of total MVOC, nocturnal breathlessness (P < 0.01) and doctor-diagnosed asthma (P < 0.05) were more common. Moreover, there were positive associations between nocturnal breathlessness and 3-methylfuran (P < 0.01), 3-methyl-1-butanol (P < 0.05), dimethyldisulfide (P < 0.01), 2-heptanone (P < 0.01), 1-octen-3-ol (P < 0.05), 3-octanone (P < 0.05), TMPD-MIB (P < 0.05), and TMPD-DIB (P < 0.01). TMPD-DIB was positively associated with wheeze (P < 0.05), daytime breathlessness (P < 0.05), doctor-diagnosed asthma (P < 0.05), and current asthma (P < 0.05). In conclusion, exposure to MVOC and plasticizers at school may be a risk factor for asthmatic symptoms in children. PRACTICAL IMPLICATIONS Despite generally good ventilation and lack of visible signs of mold growth, we found an association between respiratory symptoms and indoor MVOC concentration. In addition, we found associations between asthmatic symptoms and two common plasticizers. The highest levels of MVOC, TMPD-MIB, and TMPD-DIB were found in two new buildings, suggesting that material emissions should be better controlled. As MVOC and plasticizers concentrations were positively correlated, while indoor viable molds and bacteria were negatively correlated, it is unclear if indoor MVOC is an indicator of microbial exposure. Further studies focusing on health effects of chemical emissions from indoor plastic materials, including PVC-floor coatings, are needed.
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Affiliation(s)
- J L Kim
- Department of Medical Sciences, Occupational and Environmental Medicine, Uppsala University and University Hospital, Uppsala, Sweden.
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Kim JL, Elfman L, Mi Y, Johansson M, Smedje G, Norbäck D. Current asthma and respiratory symptoms among pupils in relation to dietary factors and allergens in the school environment. Indoor Air 2005; 15:170-182. [PMID: 15865617 DOI: 10.1111/j.1600-0668.2005.00334.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
UNLABELLED The aim was to study asthma and allergy in relation to diet and the school environment. Pupils (5-14 years) in eight schools received a questionnaire, 1014 participated (68%). Settled dust was collected on ALK-filters and analyzed for allergens from cat (Fel d 1), dog (Can f 1), horse (Equ cx), house dust mites (Der p 1, Der f 1), and cockroach (Bla g 1) by ELISA. In total, 6.8% reported cat allergy, 4.8% dog allergy, 7.7% doctor's diagnosed asthma and 5.9% current asthma, and 7.8% reported wheeze. Current asthma was less common among those consuming more fresh milk (P < 0.05) and fish (P < 0.01). Poly-unsaturated fatty acids was associated with more wheeze (P < 0.05), olive oil was associated with less doctors' diagnosed asthma (P < 0.05). Totally, 74% of the classrooms had mean CO(2) <1000 ppm. The median concentration per gram dust was 860 ng/g Fel d 1, 750 ng/g Can f 1 and 954 U/g Equ cx. Horse allergen was associated with more wheeze (P < 0.05), daytime breathlessness (P < 0.05), current asthma (P < 0.05) and atopic sensitization (P < 0.05). Dog allergen was associated with wheeze (P < 0.05) and daytime breathlessness (P < 0.05). The associations between allergens and respiratory symptoms were more pronounced among those consuming margarine, not consuming butter, and with a low intake of milk. In conclusion, cat, dog and horse allergens in schools could be a risk factor for asthma and atopic sensitization, and dietary factors may interact with the allergen exposure. PRACTICAL IMPLICATIONS Previous school studies performed by us in mid-Sweden, showed that most classrooms did not fulfill the ventilation standards. In this study, most of the classrooms fulfilled the ventilation standard, but despite that had widespread allergen contamination. Most previous studies have focused on cat allergen, but our study has shown that also dog and horse allergens can be risk factors for asthma and allergy in schools. As allergens are transported from other environments, mainly the home environment, the main prevention should be to minimize transfer of allergens. This could be achieved by reducing contacts with furry pets and horses, or using different clothes at home and at school (e.g. school uniforms). Increased cleaning in the schools may reduce allergen levels, but the efficiency of this measure must be evaluated in further intervention studies. Finally, our study supports the view that dietary habits among pupils should not be neglected and interaction between dietary factors and indoor allergen exposure needs to be further investigated.
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Affiliation(s)
- J L Kim
- Department of Medical Sciences, Uppsala University and University Hospital, Uppsala, Sweden.
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Mi Y, Zhou S, Stern SA. Representation of gas solubility in glassy polymers by a concentration-temperature superposition principle. Macromolecules 2002. [DOI: 10.1021/ma00009a037] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.7] [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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Huang P, Mi Y, Wu L. [A study of the relationship among interleukin-8, cortisol and idiopathic preterm labor]. Zhonghua Fu Chan Ke Za Zhi 2001; 36:593-5. [PMID: 16134520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
OBJECTIVE To assess the effect of interleukin-8 and cortisol on the onset of idiopathic preterm labor (PL). METHODS In 35 women with preterm labor and 17 controls, maternal serum and urine samples were collected. Interleukin-8 concentration was measured by enzyme-linked immunosorbant assay, serum cortisol level was measured by radioimmunoassay. RESULTS The concentration of interleukin-8 in maternal serum and urine and cortisol in serum were significantly higher in PL group than those in the control [(0.26 +/- 0.13) microg/L vs (0.16 +/- 0.08) microg/L, (0.16 +/- 0.15) x 10(-2) g/mol Cr vs (0.04 +/- 0.02) x 10(-2) g/mol Cr, (765.83 +/- 408.55) microg/L vs (512.41 +/- 142.65) microg/L; P < 0.05, P < 0.01, P < 0.01, respectively]. A strong correlation was found ammong interleukin-8 and cortisol concentration in maternal serum in PL (r = 0.448; P < 0.05). CONCLUSIONS There is a strong relationship between interleukin-8 and cortisol in the onset of preterm labor. Immune system and endocrine system might be involved in the mechanisms of idiopathic preterm labor.
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Affiliation(s)
- P Huang
- Department of Obstetrics and Gynecology, First Hospital, Xi'an Jiaotong University, Xi'an 710061, China
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Mi Y, Bian S, Xue Y. [Preliminary study on postremission therapy courses in acute myeloid leukemia]. Zhonghua Xue Ye Xue Za Zhi 2001; 22:520-3. [PMID: 11769676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To explore the optimum postremission therapy courses in acute myeloid leukemia (AML). METHODS Data from medical records of AML patients in our hospital in 7 year were analyzed with SPSS 8.0 system software. RESULTS One hundred and ninety one untreated de novo AML patients received different induction chemotherapy regimens: HA, DA, AA and HAD. The complete remission (CR) rate was 81.4%, 89.9% for one to two courses. The median disease free survival (DFS) in 144 CR patients whose survival time could be analyzed was 9.6 months. The probability of survival was 21.6% at 3 year and 12.9% at 5 year. For the patients received less than 6 courses of post-remission therapy, the median DFS was 7.1 months and the probability of survival was 11.4% at 3 year and 6.3% at 5 years, Whereas for patients received 6 or more courses of post-remission therapy, they were 35.3 months, 43.2% and 27.0%, respectively. The differences between the two groups were statistically significant. For patients received 8 or more courses of post-remission therapy, the median DFS was 48.8 months and the probability of survival was 57.9% at 3 year and 31.6% at 5 year. CONCLUSION AML patients should at least receive 6 courses of post-remission therapy, and 8 courses therapy seems better.
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Affiliation(s)
- Y Mi
- Institute of Hematology, CAMS, PUMC, Tianjin 300020, China
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Wang J, Cheung M, Mi Y. Miscibility of poly(ethyl oxazoline)/poly(4-vinylphenol) blends as investigated by the high-resolution solid-state 13C NMR. POLYMER 2001. [DOI: 10.1016/s0032-3861(00)00502-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Mi Y, Ishii M, Tsoukalas L. Investigation of vertical slug flow with advanced two-phase flow instrumentation. Nuclear Engineering and Design 2001. [DOI: 10.1016/s0029-5493(00)00326-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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