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Xiong Y, Guo W, Liang Z, Wu L, Ye G, Liang YY, Wen C, Yang F, Chen S, Zeng XW, Xu F. Deep learning-based diagnosis of osteoblastic bone metastases and bone islands in computed tomograph images: a multicenter diagnostic study. Eur Radiol 2023; 33:6359-6368. [PMID: 37060446 PMCID: PMC10415522 DOI: 10.1007/s00330-023-09573-5] [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: 02/04/2023] [Revised: 03/08/2023] [Accepted: 03/20/2023] [Indexed: 04/16/2023]
Abstract
OBJECTIVE To develop and validate a deep learning (DL) model based on CT for differentiating bone islands and osteoblastic bone metastases. MATERIALS AND METHODS The patients with sclerosing bone lesions (SBLs) were retrospectively included in three hospitals. The images from site 1 were randomly assigned to the training (70%) and intrinsic verification (10%) datasets for developing the two-dimensional (2D) DL model (single-slice input) and "2.5-dimensional" (2.5D) DL model (three-slice input) and to the internal validation dataset (20%) for evaluating the performance of both models. The diagnostic performance was evaluated using the internal validation set from site 1 and additional external validation datasets from site 2 and site 3. And statistically analyze the performance of 2D and 2.5D DL models. RESULTS In total, 1918 SBLs in 728 patients in site 1, 122 SBLs in 71 patients in site 2, and 71 SBLs in 47 patients in site 3 were used to develop and test the 2D and 2.5D DL models. The best performance was obtained using the 2.5D DL model, which achieved an AUC of 0.996 (95% confidence interval [CI], 0.995-0.996), 0.958 (95% CI, 0.958-0.960), and 0.952 (95% CI, 0.951-0.953) and accuracies of 0.950, 0.902, and 0.863 for the internal validation set, the external validation set from site 2 and site 3, respectively. CONCLUSION A DL model based on a three-slice CT image input (2.5D DL model) can improve the prediction of osteoblastic bone metastases, which can facilitate clinical decision-making. KEY POINTS • This study investigated the value of deep learning models in identifying bone islands and osteoblastic bone metastases. • Three-slice CT image input (2.5D DL model) outweighed the 2D model in the classification of sclerosing bone lesions. • The 2.5D deep learning model showed excellent performance using the internal (AUC, 0.996) and two external (AUC, 0.958; AUC, 0.952) validation sets.
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Affiliation(s)
- Yuchao Xiong
- Department of Radiology, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital, Medical College of Jinan University), 396 Tongfu Road, Guangzhou, 510220, Guangdong Province, China
| | - Wei Guo
- Department of Radiology, Wuhan Third Hospital, Tongren Hospital of Wuhan University, 241 Liuyang Road, Wuhan, 430063, Hubei Province, China
| | - Zhiping Liang
- Department of Radiology, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital, Medical College of Jinan University), 396 Tongfu Road, Guangzhou, 510220, Guangdong Province, China
| | - Li Wu
- Department of Radiology, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital, Medical College of Jinan University), 396 Tongfu Road, Guangzhou, 510220, Guangdong Province, China
| | - Guoxi Ye
- Department of Radiology, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital, Medical College of Jinan University), 396 Tongfu Road, Guangzhou, 510220, Guangdong Province, China
| | - Ying-Ying Liang
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, 1Panfu Road, Guangzhou, 510180, Guangdong Province, China
| | - Chao Wen
- Department of Radiology, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital, Medical College of Jinan University), 396 Tongfu Road, Guangzhou, 510220, Guangdong Province, China
| | - Feng Yang
- Department of Radiology, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital, Medical College of Jinan University), 396 Tongfu Road, Guangzhou, 510220, Guangdong Province, China
| | - Song Chen
- Department of Radiology, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital, Medical College of Jinan University), 396 Tongfu Road, Guangzhou, 510220, Guangdong Province, China
| | - Xu-Wen Zeng
- Department of Radiology, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital, Medical College of Jinan University), 396 Tongfu Road, Guangzhou, 510220, Guangdong Province, China.
| | - Fan Xu
- Department of Radiology, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital, Medical College of Jinan University), 396 Tongfu Road, Guangzhou, 510220, Guangdong Province, China.
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Zhao XD, Geng YS, Hu TY, Li WX, Liang YY, Hao DJ. Comparing the Performance of Hyphantria cunea (Lepidoptera: Arctiidae) on Artificial and Natural Diets: Feasibility of Mass-Rearing on Artificial Diets. J Econ Entomol 2023; 116:181-191. [PMID: 36412250 DOI: 10.1093/jee/toac176] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Indexed: 06/16/2023]
Abstract
In China, Hyphantria cunea (Drury) is an invasive phytophagous pest; it attacks nearly all species of defoliated trees. To develop integrated pest management programs (IPM) for H. cunea, we need to ensure the availability of insects by mass-rearing them on artificial diets under laboratory conditions. This study compared the growth characteristics, nutritional indices, growth indices, and digestive enzyme activity of insects reared on Pterocarya stenoptera C.DC (Fagales: Juglandaceae), the Chinese wingnut, and an artificial diet. We also investigated the correlation between diet components and growth indices using principal components analysis and Pearson correlation analysis. We found that mass-rearing of H. cunea on an artificial diet was feasible. It led to a shorter developmental period, with heavier larvae and pupae than natural diets. The principal components analysis indicated that the growth indices and α-Amylase were significantly positively associated with PC1, which explained 82.45% of the total data variability. Pearson correlation analysis showed a significant correlation between digestion, absorption parameters, and growth. Developing a mass-rearing program to produce H. cunea on an artificial diet will be valuable for improving IPM strategies. Understanding the mechanism of the responses of phytophagous insect populations to anthropogenic diet regulation can provide new ideas and methods for pest control.
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Affiliation(s)
- Xu-Dong Zhao
- CoInnovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, 210037, Nanjing, China
- College of Forestry, Nanjing Forestry University, 210037, Nanjing, China
| | - Yi-Shu Geng
- CoInnovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, 210037, Nanjing, China
- College of Forestry, Nanjing Forestry University, 210037, Nanjing, China
| | - Tian-Yi Hu
- CoInnovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, 210037, Nanjing, China
- College of Forestry, Nanjing Forestry University, 210037, Nanjing, China
| | - Wen-Xuan Li
- CoInnovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, 210037, Nanjing, China
- College of Forestry, Nanjing Forestry University, 210037, Nanjing, China
| | - Ying-Ying Liang
- CoInnovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, 210037, Nanjing, China
- College of Forestry, Nanjing Forestry University, 210037, Nanjing, China
| | - De-Jun Hao
- CoInnovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, 210037, Nanjing, China
- College of Forestry, Nanjing Forestry University, 210037, Nanjing, China
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Xu H, Yu X, Li Y, Huang Z, Zhang L, Min Q, Bi J, Li Z, Liu L, Liang Y, Xu Z, Sun H, Yang S, Shao M. Collagen IV and Podocyte-Related Gene Variants in Patients with Concurrent IgA Nephropathy and Thin Basement Membrane Nephropathy. Nephron Clin Pract 2022; 147:301-310. [PMID: 36349777 PMCID: PMC10906470 DOI: 10.1159/000526971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 08/30/2022] [Indexed: 03/03/2024] Open
Abstract
INTRODUCTION IgA nephropathy is the most common primary glomerulonephritis among adults in clinic. Thin basement membrane nephropathy is often underestimated or even omitted if it coincides with IgA nephropathy. Therefore, it is necessary to study the epidemiological, clinical, and molecular characteristics of the concurrence of this entity. METHODS Eight patients with concurrent IgA nephropathy and thin basement membrane nephropathy (IgA-T) were retrospectively analyzed based on their clinicopathological characteristics. Genetic analysis was performed using whole-exome sequencing and Sanger's sequencing. Data of the patients with IgA nephropathy and normal basement membrane (IgA-N) and variants in the local in-house database were used as controls. All candidate variants were assessed in silico. RESULTS The clinical manifestations of patients with IgA-T were hematuria, proteinuria, and renal insufficiency. Histopathological analysis showed mild mesangial hyperplasia, focal segmental glomerulosclerosis, podocyte activation, and foot process fusion. Crescent was rarely seen. COL4A and/or podocyte cytoskeleton and mitochondria-related gene variants were detected in seven IgA-T patients. Three patients exhibited pathogenic variants of COL4A, including a new variant. All IgA-T and one IgA-N patient possessed ITGB4 and/or PLEC variants, but there was no corresponding genotype-phenotype relationship. Six patients possessed other podocyte cytoskeleton and mitochondria-related gene variants such as NPHS2, SRGAP1, MYO1E, MYO1C, WT1, and COQ9, which were first reported in patients with IgA-T and were not in controls. Altogether, there were no significant differences in the degrees of proteinuria, serum creatinine, and eGFR during the follow-up period of 5-10 years, but there was a significant difference in the degree of proteinuria between IgA-T patients with podocyte-related gene variants and IgA-N patients. In the IgA-T group, patients with podocyte-related gene variants seemed predisposed to progress than patients without those variants, with higher proteinuria and serum creatinine and reduced eGFR. CONCLUSION Concurrent thin basement membrane nephropathy and/or heterozygous COL4A gene pathogenic variants do not necessarily predict the short-term progress of sporadic IgA nephropathy in adults. Predisposition factors for this disease progression should be considered for detecting the variants of COL4A and podocyte cytoskeleton and mitochondria-related genes simultaneously, which also manifests the complexity and heterogeneity of IgA nephropathy with concurrent thin basement membrane nephropathy.
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Affiliation(s)
- Hua Xu
- Department of Pathology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - XueWen Yu
- Department of Pathology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - Yun Li
- Department of Nephrology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - ZhongHua Huang
- Department of Pathology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - Lu Zhang
- Department of Pathology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - QinQin Min
- Department of Pathology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - JiaXin Bi
- Department of Pathology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - ZhenGuo Li
- Department of Pathology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - LingYun Liu
- Department of Pathology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - YingYing Liang
- Department of Pathology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - ZhouWen Xu
- Department of Pathology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - HuiLi Sun
- Department of Nephrology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - ShuDong Yang
- Department of Nephrology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - MuMin Shao
- Department of Pathology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
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Fu X, Zan XY, Sun L, Tan M, Cui FJ, Liang YY, Meng LJ, Sun WJ. Functional Characterization and Structural Basis of the β-1,3-Glucan Synthase CMGLS from Mushroom Cordyceps militaris. J Agric Food Chem 2022; 70:8725-8737. [PMID: 35816703 DOI: 10.1021/acs.jafc.2c03410] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
β-1,3-Glucan synthases play key roles in glucan synthesis, cell wall assembly, and growth of fungi. However, their multi-transmembrane domains (over 14 TMHs) and large molecular masses (over 100 kDa) significantly hamper understanding of their catalytic characteristics and mechanisms. In the present study, the 5841-bp gene CMGLS encoding the 221.7 kDa membrane-bound β-1,3-glucan synthase CMGLS in Cordyceps militaris was cloned, identified, and structurally analyzed. CMGLS was partially purified with a specific activity of 87.72 pmol/min/μg, a purification fold of 121, and a yield of 10.16% using a product-entrapment purification method. CMGLS showed a strict specificity to UDP-glucose with a Km value of 84.28 μM at pH 7.0 and synthesized β-1,3-glucan with a maximum degree of polymerization (DP) of 70. With the assistance of AlphaFold and molecular docking, the 3D structure of CMGLS and its binding features with substrate UDP-glucose were proposed for the first time to our knowledge. UDP-glucose potentially bound to at least 11 residues via hydrogen bonds, π-stacking ,and salt bridges, and Arg 1436 was predicted as a key residue directly interacting with the moieties of glucose, phosphate, and the ribose ring on UDP-glucose. These findings would open an avenue to recognize and understand the glucan synthesis process and catalytic mechanism of β-1,3-glucan synthases in mushrooms.
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Affiliation(s)
- Xin Fu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, P.R. China
| | - Xin-Yi Zan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, P.R. China
| | - Lei Sun
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, P.R. China
| | - Ming Tan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, P.R. China
| | - Feng-Jie Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, P.R. China
- Jiangxi Provincial Engineering and Technology Center for Food Additives Bio-production, Dexing 334221, P.R. China
| | - Ying-Ying Liang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, P.R. China
| | - Li-Juan Meng
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, P.R. China
| | - Wen-Jing Sun
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, P.R. China
- Jiangxi Provincial Engineering and Technology Center for Food Additives Bio-production, Dexing 334221, P.R. China
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Liang YY, Niu FY, Xu AA, Jiang LL, Liu CS, Liang HP, Huang YF, Shao XF, Mo ZW, Yuan YW. Increased MCL-1 synthesis promotes irradiation-induced nasopharyngeal carcinoma radioresistance via regulation of the ROS/AKT loop. Cell Death Dis 2022; 13:131. [PMID: 35136016 PMCID: PMC8827103 DOI: 10.1038/s41419-022-04551-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 07/09/2021] [Revised: 12/13/2021] [Accepted: 01/19/2022] [Indexed: 12/12/2022]
Abstract
Worldwide, nasopharyngeal carcinoma (NPC) is a rare head and neck cancer; however, it is a common malignancy in southern China. Radiotherapy is the most important treatment strategy for NPC. However, although radiotherapy is a strong tool to kill cancer cells, paradoxically it also promotes aggressive phenotypes. Therefore, we mimicked the treatment process in NPC cells in vitro. Upon exposure to radiation, a subpopulation of NPC cells gradually developed resistance to radiation and displayed cancer stem-cell characteristics. Radiation-induced stemness largely depends on the accumulation of the antiapoptotic myeloid cell leukemia 1 (MCL-1) protein. Upregulated MCL-1 levels were caused by increased stability and more importantly, enhanced protein synthesis. We showed that repeated ionizing radiation resulted in persistently enhanced reactive oxygen species (ROS) production at a higher basal level, further promoting protein kinase B (AKT) signaling activation. Intracellular ROS and AKT activation form a positive feedback loop in the process of MCL-1 protein synthesis, which in turn induces stemness and radioresistance. AKT/MCL-1 axis inhibition attenuated radiation-induced resistance, providing a potential target to reverse radiation therapy-induced radioresistance.
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Affiliation(s)
- Ying-Ying Liang
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Fei-Yu Niu
- Department of Internal Medicine, Section 3, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - An-An Xu
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Li-Li Jiang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
| | - Chun-Shan Liu
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Hui-Ping Liang
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Yu-Fan Huang
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Xun-Fan Shao
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Zhi-Wen Mo
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China.
| | - Ya-Wei Yuan
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China.
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Liang YY, Zan XY, Sun L, Fu X, Cui FJ, Tan M, Shao ZY, Sun WJ. A uridine diphosphate-glycosyltransferase GFUGT88A1 derived from edible mushroom Grifola frondosa extends oligosaccharide chains. Process Biochem 2022. [DOI: 10.1016/j.procbio.2021.11.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Shao ZY, Zan XY, Jia W, Sun L, Cui FJ, Zhu HA, Sun WJ, Liang YY, Fu X, Zhang JS, Zhao X. Changes of structures and biosynthesis/hydrolysis-associated genes expression of glucans at different Volvariella volvacea maturity stages. Int J Biol Macromol 2021; 191:996-1005. [PMID: 34597698 DOI: 10.1016/j.ijbiomac.2021.09.128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/09/2021] [Accepted: 09/19/2021] [Indexed: 10/20/2022]
Abstract
In the present study, effects of maturity stage on structural characteristics and biosynthesis/hydrolysis-associated genes expression of glucans from Volvariella volvacea fruit body were well investigated. Elongation and pileus expansion stages decreased total soluble carbohydrate and protein contents to 17.09 mg/g and 8.33 mg/g, and significantly accumulated the total amino acids contents to 32.37 mg/g. Yields of crude polysaccharides significantly increased to 8.12% at egg stage and decreased to 3.72% at pileus expansion stage. Purified VVP I-a and VVP I-b were proved to be α-glucans. The maturity process affected the monosaccharide compositions, decreased the molecular weights of VVP I-a and VVP I-b with decreased transcription levels of glucan biosynthesis-associated enzyme genes vvugp and vvgls and increased glucan hydrolysis-associated glucanase gene vvexg2 expression with no significant effects on backbone structures including glycosidic linkages and configurations. The findings would benefit for understanding change patterns of V. volvacea glucan structures and their biosynthesis/hydrolysis-associated genes expression at maturity stages.
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Affiliation(s)
- Ze-Yu Shao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xin-Yi Zan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Wei Jia
- National Engineering Research Center of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, PR China
| | - Lei Sun
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Feng-Jie Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China; Jiangxi Provincial Engineering and Technology Center for Food Additives Bio-production, Dexing 334221, PR China.
| | - Hong-An Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Wen-Jing Sun
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China; Jiangxi Provincial Engineering and Technology Center for Food Additives Bio-production, Dexing 334221, PR China
| | - Ying-Ying Liang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xin Fu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Jing-Song Zhang
- National Engineering Research Center of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, PR China.
| | - Xiu Zhao
- Jiangsu Jiangnan Biotech Co., Ltd., Danyang, Jiangsu 212300, PR China
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Liang YY, Shen JC, Li W. Evolution of compressive mechanical properties of early hypertrophic scar during laser treatment. J Biomech 2021; 129:110783. [PMID: 34662757 DOI: 10.1016/j.jbiomech.2021.110783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 09/24/2021] [Accepted: 09/27/2021] [Indexed: 11/27/2022]
Abstract
Laser therapy has been widely used in the treatment of hypertrophic scars (HPS), but whether the mechanical properties of HPS tissue after laser treatment can be restored to those of normal skin remains unclear. In this paper, the relationship between the evolution of compressive mechanical properties and histological changes of HPS tissues following three successive combined pulsed dye laser (PDL) and fractional CO2 laser (CO2) treatments was investigated by compression tests and histological analysis. The early HPS model of rabbit ear was established by CO2 laser ablation. The loading-unloading tests and strain creep tests under the compression forces of 1 N, 2 N, and 3 N were carried out for normal skin, untreated HPS and HPS after different treatment times, respectively. The results showed that the compression ratio λ of all tissues revealed force dependence and rose with the increasing compression force, which was similar to the trend of most biological soft tissues. The histological changes of HPSs following laser treatment have a significant influence on the compressive mechanical response. Compared with the normal skin, the toughness and anti-deformation ability of HPS reduced due to the proliferation of collagen fibers and the destruction of elastic fibers, resulting in higher energy dissipation, compression ratio λ, and stable creep rate D, and lower elastic modulus. After three successive combined PDL/ CO2 laser treatments, the compressive mechanical properties and creep properties of HPS gradually approached that of the normal skin owing to the gradual restoration of the amount and distribution of collagen and elastic fibers in HPS. The results provide a new method for evaluating the clinical efficacy of laser therapy for treatment of HPS tissue.
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Affiliation(s)
- Y Y Liang
- Tribology Research Institute, Key Laboratory for Advanced Technology of Materials of Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
| | - J C Shen
- Department of Dermatology, The Second People's Hospital of Chengdu, Chengdu, Sichuan Province 610017, China
| | - W Li
- Tribology Research Institute, Key Laboratory for Advanced Technology of Materials of Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China.
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Tang WJ, Kong QC, Cheng ZX, Liang YS, Jin Z, Chen LX, Hu WK, Liang YY, Wei XH, Guo Y, Jiang XQ. Performance of radiomics models for tumour-infiltrating lymphocyte (TIL) prediction in breast cancer: the role of the dynamic contrast-enhanced (DCE) MRI phase. Eur Radiol 2021; 32:864-875. [PMID: 34430998 DOI: 10.1007/s00330-021-08173-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/20/2021] [Accepted: 06/25/2021] [Indexed: 01/26/2023]
Abstract
OBJECTIVE To systematically investigate the effect of imaging features at different DCE-MRI phases to optimise a radiomics model based on DCE-MRI for the prediction of tumour-infiltrating lymphocyte (TIL) levels in breast cancer. MATERIALS AND METHODS This study retrospectively collected 133 patients with pathologically proven breast cancer, including 73 patients with low TIL levels and 60 patients with high TIL levels. The volumes of breast cancer lesions were manually delineated on T2-weighted imaging (T2WI), diffusion-weighted imaging (DWI), and each phase of DCE-MRI, followed by 6250 quantitative feature extractions. The least absolute shrinkage and selection operator (LASSO) method was used to select predictive feature sets for the classifiers. Four models were developed for predicting TILs: (1) single enhanced phase radiomics models; (2) fusion enhanced multi-phase radiomics models; (3) fusion multi-sequence radiomics models; and (4) a combined radiomics-based clinical model. RESULTS Image features extracted from the delayed phase MRI, especially DCE_Phase 6 (DCE_P6), demonstrated dominant predictive performances over features from other phases. The fusion multi-sequence radiomics model and combined radiomics-based clinical model achieved the highest predictive performances with areas under the curve (AUCs) of 0.934 and 0.950, respectively; however, the differences were not statistically significant. CONCLUSION The DCE-MRI radiomics model, especially image features extracted from the delayed phases, can help improve the performance in predicting TILs. The radiomics nomogram is effective in predicting TILs in breast cancer. KEY POINTS • Radiomics features extracted from DCE-MRI, especially delayed phase images, help predict TIL levels in breast cancer. • We developed a nomogram based on MRI to predict TILs in breast cancer that achieved the highest AUC of 0.950.
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Affiliation(s)
- Wen-Jie Tang
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, Guangdong, China
| | - Qing-Cong Kong
- Department of Radiology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, Guangdong, China
| | - Zi-Xuan Cheng
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, Guangdong, China
| | - Yun-Shi Liang
- Department of Pathology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, Guangdong, China
| | - Zhe Jin
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, Guangdong, China
| | - Lei-Xin Chen
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, Guangdong, China
| | - Wen-Ke Hu
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, Guangdong, China
| | - Ying-Ying Liang
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, Guangdong, China
| | - Xin-Hua Wei
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, Guangdong, China
| | - Yuan Guo
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, Guangdong, China.
| | - Xin-Qing Jiang
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, Guangdong, China.
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Liang YY, Zhao SY, Huang GY, Chen Z, Hu Z. [Clinical effect of adding hMG to the follicular phase long protocol for standard group with normal ovarian reserve function]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:335-340. [PMID: 34034420 DOI: 10.3760/cma.j.cn112141-20210327-00155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the impact of adding human menopausal gonadotropin (hMG) for in vitro fertilization-embryo transfer pregnancy outcomes in a standard population of non-advanced age with normal ovarian reserve function using a long follicular phase protocol. Methods: Clinical data of 489 patients with normal ovarian reserve function, who were admitted from January 2018 to January 2020 in the Affiliated Hospital of Guizhou Medical University and underwent in vitro fertilization for the first time with the long follicular phase protocol in fresh cycles, were retrospectively analyzed. The patients were divided into three groups according to whether or not to add urine-derived hMG and the timing of addition: non-addition group (group A), medium-term hMG group (group B1), whole course hMG group (group B2); the laboratory parameters of each group were observed, and the effect of ovulation induction drugs and pregnancy outcomes were compared. Results: The ages of B1 and B2 groups were significantly higher than that of group A (P=0.019 and P=0.011). The basal FSH level of group B2 was significantly higher than those of group A and group B1 (P<0.01 and P=0.006), and the basal FSH/LH ratio of group B2 was significantly higher than that of group B1 (P=0.009). Antral follicle counts of group A and group B1 were significantly higher than that of group B2 (P=0.007 and P=0.017). The superior embryo rate of group B2 [(47±27)%] was significantly higher than that of group A (P=0.017). The embryo implantation rate of group B1 was significantly lower than those of group A and group B2 (P=0.043 and P<0.01). The clinical pregnancy rate of group B2 [76.7% (155/202)] was significantly higher than those of group A (P=0.039) and group B1 (P<0.01). The live-birth rate of group B2 [67.3% (136/202)] was significantly higher than those of group A (P=0.017) and group B1 (P=0.001). Conclusions: For non-advanced aged patients with normal ovarian reserve function, the long protocol of follicular phase is suitable for those with relatively low ovarian reserve function. Adding hMG in the whole course of ovulation induction after gonadotropin-releasing hormone agonist reduction could improve the pregnancy outcomes by improving the quality of embryos.
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Affiliation(s)
- Y Y Liang
- Center for Reproductive Medicine, The Affiliated Hospital of Guizhou Medical University, Guiyang 550025, China
| | - S Y Zhao
- Center for Reproductive Medicine, The Affiliated Hospital of Guizhou Medical University, Guiyang 550025, China
| | - G Y Huang
- Center for Reproductive Medicine, The Affiliated Hospital of Guizhou Medical University, Guiyang 550025, China
| | - Z Chen
- Center for Reproductive Medicine, The Affiliated Hospital of Guizhou Medical University, Guiyang 550025, China
| | - Z Hu
- Center for Reproductive Medicine, The Affiliated Hospital of Guizhou Medical University, Guiyang 550025, China
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11
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Dai L, Li YH, Liang YY, Zhao J, Chen G, Yin J, Postmus PE, Addeo A, Blasberg JD, Onesti CE, Liao ZW, Rao XG, Long HD. High expression of cell adhesion molecule 2 unfavorably impacts survival in non-small cell lung cancer patients with brain metastases. J Thorac Dis 2021; 13:2437-2446. [PMID: 34012591 PMCID: PMC8107517 DOI: 10.21037/jtd-21-307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background Lung cancer is one kind of malignant tumor with a high risk for morbidity and mortality compared to other solid organ malignancies. Brain metastases occur in 30-55% of non-small cell lung cancer (NSCLC) patients. Prognosis of NSCLC patients with brain metastases is very poor. Our previous study showed that cell adhesion molecule 2 (CADM2) could regulate the development of brain metastasis in NSCLC cells. Therefore, the objective of the study is to evaluate the effect of CADM2 on the prognosis of NSCLC patients with brain metastases. Methods The expression of CADM2 was detected by quantitative real-time polymerase chain reaction (qRT-PCR) in the tissue of the primary tumor. Patients were followed up and overall survival (OS) was calculated. The relationships between CADM2 and clinicopathological features were analyzed using the chi-square test. Kaplan-Meier analysis was carried out to demonstrate the influence of CADM2 on the OS of patients. Univariate and multivariate Cox analyses were used to determine the prognosis of NSCLC patients with brain metastases. Results A total of 139 NSCLC patients with brain metastases from the Affiliated Cancer Hospital & Institute of Guangzhou Medical University, treated between January 2015 and December 2017 were evaluated retrospectively. The expression level of CADM2 in patients ranged from 1 to 17.2677, with a median of 6.0772. Chi-square analysis showed that CADM2 gene expression level was not significantly associated with gender, age, tumor location, histological subtype, tumor T stage, extracranial metastasis, or smoking status. However, CADM2 expression was notably associated with risk for lymph node metastasis. The results of the Kaplan-Meier analysis showed that high expression [CADM2 messenger RNA (mRNA) ≥6.0772] of CADM2 was markedly associated with poor prognosis. Univariate and multivariate Cox analyses demonstrated that CADM2 was an independent risk factor for survival in NSCLC patients with brain metastases (P<0.05). Conclusions CADM2 expression is up-regulated and closely associated with disease progression and poor prognosis in NSCLC patients with brain metastases. CADM2 expression warrants special consideration given its potential prognostic significance that might help inform clinical decision making.
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Affiliation(s)
- Lu Dai
- Department of Thoracic Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Yi-Hua Li
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Ying-Ying Liang
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Jian Zhao
- Department of Thoracic Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Gang Chen
- Department of Thoracic Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jun Yin
- Department of Thoracic Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Pieter E Postmus
- Department of Medical Oncology, Clatterbridge Cancer Centre, Liverpool Heart & Chest Hospital, University of Liverpool, Liverpool, UK
| | - Alfredo Addeo
- Oncology Department, University Hospital Geneva, Geneva, Switzerland
| | - Justin D Blasberg
- Section of Thoracic Surgery, Department of Surgery, Yale School of Medicine, New Haven, CT, USA
| | - Concetta Elisa Onesti
- Medical Oncology Unit, CHU Liège Sart Tilman and GIGA Research Center, Avenue de l'Hôpital 1, Liège, Belgium
| | - Zhi-Wei Liao
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Xu-Guang Rao
- Department of Thoracic Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Hui-Dong Long
- Department of Medical Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
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12
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Tang WJ, Jin Z, Zhang YL, Liang YS, Cheng ZX, Chen LX, Liang YY, Wei XH, Kong QC, Guo Y, Jiang XQ. Whole-Lesion Histogram Analysis of the Apparent Diffusion Coefficient as a Quantitative Imaging Biomarker for Assessing the Level of Tumor-Infiltrating Lymphocytes: Value in Molecular Subtypes of Breast Cancer. Front Oncol 2021; 10:611571. [PMID: 33489920 PMCID: PMC7820903 DOI: 10.3389/fonc.2020.611571] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 11/19/2020] [Indexed: 12/18/2022] Open
Abstract
Purpose To assess whether apparent diffusion coefficient (ADC) metrics can be used to assess tumor-infiltrating lymphocyte (TIL) levels in breast cancer, particularly in the molecular subtypes of breast cancer. Methods In total, 114 patients with breast cancer met the inclusion criteria (mean age: 52 years; range: 29–85 years) and underwent multi-parametric breast magnetic resonance imaging (MRI). The patients were imaged by diffusion-weighted (DW)-MRI (1.5 T) using a single-shot spin-echo echo-planar imaging sequence. Two readers independently drew a region of interest (ROI) on the ADC maps of the whole tumor. The mean ADC and histogram parameters (10th, 25th, 50th, 75th, and 90th percentiles of ADC, skewness, entropy, and kurtosis) were used as features to analyze associations with the TIL levels in breast cancer. Additionally, the correlation between the ADC values and Ki-67 expression were analyzed. Continuous variables were compared with Student’s t-test or Mann-Whitney U test if the variables were not normally distributed. Categorical variables were compared using Pearson’s chi-square test or Fisher’s exact test. Associations between TIL levels and imaging features were evaluated by the Mann-Whitney U and Kruskal-Wallis tests. Results A statistically significant difference existed in the 10th and 25th percentile ADC values between the low and high TIL groups in breast cancer (P=0.012 and 0.027). For the luminal subtype of breast cancer, the 10th percentile ADC value was significantly lower in the low TIL group (P=0.041); for the non-luminal subtype of breast cancer, the kurtosis was significantly lower in the low TIL group (P=0.023). The Ki-67 index showed statistical significance for evaluating the TIL levels in breast cancer (P=0.007). Additionally, the skewness was significantly higher for samples with high Ki-67 levels in breast cancer (P=0.029). Conclusions Our findings suggest that whole-lesion ADC histogram parameters can be used as surrogate biomarkers to evaluate TIL levels in molecular subtypes of breast cancer.
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Affiliation(s)
- Wen-Jie Tang
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Zhe Jin
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Yan-Ling Zhang
- Department of Ultrasound, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yun-Shi Liang
- Department of Pathology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Zi-Xuan Cheng
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Lei-Xin Chen
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Ying-Ying Liang
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Xin-Hua Wei
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Qing-Cong Kong
- Department of Radiology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yuan Guo
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Xin-Qing Jiang
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
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Zan XY, Zhu HA, Jiang LH, Liang YY, Sun WJ, Tao TL, Cui FJ. The role of Rho1 gene in the cell wall integrity and polysaccharides biosynthesis of the edible mushroom Grifola frondosa. Int J Biol Macromol 2020; 165:1593-1603. [PMID: 33031851 DOI: 10.1016/j.ijbiomac.2020.09.239] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/26/2020] [Accepted: 09/27/2020] [Indexed: 01/02/2023]
Abstract
Grifola frondosa polysaccharides, especially β-glucans, showed the significant antitumor, hypoglycemic, and immune-stimulating activities. In the present study, a predominant regulatory subunit gfRho1p of β-1,3-glucan synthase in G. frondosa was identified with a molecular weight of 20.79 kDa and coded by a putative 648-bp small GTPase gene gfRho1. By constructing mutants of RNA interference and over-expression gfRho1, the roles of gfRho1 in the growth, cell wall integrity and polysaccharide biosynthesis were well investigated. The results revealed that defects of gfRho1 slowed mycelial growth rate by 22% to 33%, reduced mycelial polysaccharide and exo-polysaccharide yields by 4% to 7%, increased sensitivity to cell wall stress, and down-regulated gene transcriptions related to PKC-MAPK signaling pathway in cell wall integrity. Over-expression of gfRho1 improved mycelial growth rate and polysaccharide production of G. frondosa. Our study supports that gfRho1 is an essential regulator for polysaccharide biosynthesis, cell growth, cell wall integrity and stress response in G. frondosa.
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Affiliation(s)
- Xin-Yi Zan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Hong-An Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Li-Hua Jiang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Ying-Ying Liang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Wen-Jing Sun
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China; Jiangxi Provincial Engineering and Technology Center for Food Additives Bio-production, Dexing 334221, PR China
| | - Ting-Lei Tao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Feng-Jie Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China; Jiangxi Provincial Engineering and Technology Center for Food Additives Bio-production, Dexing 334221, PR China.
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Liang YY, Wang HY, Wang HY, Hua W, Zhao MS, Li P, Zhao LN. [The value of intraoperative cerebral oxygen saturation in predicting postoperative neurocognitive dysfunction in elderly patients with mild cognitive impairment]. Zhonghua Yi Xue Za Zhi 2020; 100:3224-3229. [PMID: 33167108 DOI: 10.3760/cma.j.cn112137-20200530-01712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the value of intraoperative cerebral oxygen saturation in predicting postoperative neurocognitive dysfunction (PND) in elderly patients with mild cognitive impairment. Methods: A total of 210 cases of lumbar decompression, bone grafting and fusion surgery under general anesthesia were collected in the Third Central Hospital of Tianjin from June, 2019 to January, 2020, either sex, aged 65-75 year, BMI 19.5-32.5 kg/m(2), ASA physical status Ⅱ or Ⅲ, preoperative comorbidities with mild cognitive impairment. MoCA and MMSE were used to evaluate the cognitive function of patients 1 day before the operation, 7 days and 3 monthes after operation. PND group (n=38) and non-PND group (n=172) were selected according to postoperative MMSE and MoCA scale scores and the diagnostic criteria of PND. Heart rate (HR) , mean arterial pressure (MAP), pulse oxygen saturation (SpO(2)), bispectral index (BIS), cerebral tissue oxygen saturation (SctO(2), average left and right brain SctO(2) were recorded) were recorded pre-anesthetic (T(0)), ten minutes of anesthesia(T(1)), twenty minutes of anesthesia (T(2)), thirty minutes into the operation (T(3)), one hour into the operation (T(4)), end of the surgery (T(5)), and leave the PACU (T(6)). SctO(2) at time point T(0) was the base value of SctO(2), and the maximum percentage drop in SctO(2) from the base value was calculated (SctO(2max)%). Results: The incidence of PND was 18% (38/210) in 210 elderly patients undergoing surgery. The age of PND group and non-PND group was (71.0±2.1) and (67.8±2.0) years old, and the PACU time was (57±5) and (46±8) min, respectively. Compared with the non-PND group, the age of the PND group was higher (t=2.600, P<0.05) and the PACU time was longer (t=3.039, P<0.05). At the time points T(3), T(4), T(5) and T(6), SctO(2) in the PND group was (62±10) %, (60±11) %, (64±12) % and (66±10)%, respectively, lower than that in the non-PND group (67±60) %, (68±6) %, (69±5) % and (70±7)%, respectively, and the difference was statistically significant (t=3.369, 4.906, 3.787, 2.516, all P<0.05).The MoCA and MMSE scores of the PND group were (22.9±1.2) and (24.1±1.2) points, respectively, 1 day before surgery; and the MoCA and MMSE scores of the PND group were reduced to (20.8±1.2) and (21.3±0.7) points, respectively, 7 days after surgery, with statistically significant differences (t=3.523, 5.675, all P<0.05). MoCA and MMSE scores 7 days after surgery in the non-PND group were (22.4±1.3) and (23.1±1.6) points, respectively. Compared with the non-PND group, MoCA and MMSE scores 7 days after surgery in the PND group were reduced (t=2.630, 3.108, all P<0.05). The critical value of intraoperative SctO(2max)% was 13.74%, the area under the curve of PND was predicted to be 0.907 (95%CI: 0.819-0.995), sensitivity and specificity were 88.9% and 88.5%, respectively. Conclusion: SctO(2max)%>13.74% can be used as an indicator to predict PND occurrence in elderly patients with mild cognitive impairment during lumbar surgery.
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Affiliation(s)
- Y Y Liang
- Third Central Clinical College of Tianjin Medical University, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Department of Anesthesiology, Third Central Hospital of Tianjin, Tianjin 300170, China
| | - H Y Wang
- Third Central Clinical College of Tianjin Medical University, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Department of Anesthesiology, Third Central Hospital of Tianjin, Tianjin 300170, China
| | - H Y Wang
- Third Central Clinical College of Tianjin Medical University, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Department of Anesthesiology, Third Central Hospital of Tianjin, Tianjin 300170, China
| | - W Hua
- Third Central Clinical College of Tianjin Medical University, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Department of Anesthesiology, Third Central Hospital of Tianjin, Tianjin 300170, China
| | - M S Zhao
- Third Central Clinical College of Tianjin Medical University, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Department of Anesthesiology, Third Central Hospital of Tianjin, Tianjin 300170, China
| | - P Li
- Tianjin Hospital, Tianjin 300211, China
| | - L N Zhao
- Tianjin Hospital, Tianjin 300211, China
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Xu S, Liang YY, Hong BX, Liu X, Liu YY. Research Progress on the Relationship between Genetic Polymorphism and Violent Behavior of Patients with Schizophrenia. Fa Yi Xue Za Zhi 2020; 36:379-378. [PMID: 32705854 DOI: 10.12116/j.issn.1004-5619.2020.03.016] [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: 10/19/2018] [Indexed: 11/30/2022]
Abstract
Abstract Schizophrenia is a common disease characterized by thinking obstructions and accompanied by cognitive, emotional and behavioral disorders. Under the control of psychiatric symptoms, patients with schizophrenia may self-injure or impulsively wound others, resulting in public risk and increase in the burden of family and society. In recent years, many studies have shown that the violent behavior of patients with schizophrenia is related to genetic factors. This article reviews the research progress on the relationship between genetic polymorphism and violent behavior of patients with schizophrenia, analyzes the possible mechanism of the correlation between the two, puts forward the limitations of current research and the directions of future research, and provides scientific basis for risk assessment and prevention of violent behavior of patients with schizophrenia.
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Affiliation(s)
- S Xu
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Y Y Liang
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - B X Hong
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - X Liu
- Department of Health-related Social and Behavioral Sciences, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Y Y Liu
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
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Guo YT, Lu Y, Jia YY, Qu HN, Qi D, Wang XQ, Song PY, Jin XS, Xu WH, Dong Y, Liang YY, Quan CS. Predictive Value of Pin1 in Cervical Low-Grade Squamous Intraepithelial Lesions and Inhibition of Pin1 Exerts Potent Anticancer Activity against Human Cervical Cancer. Aging Dis 2020; 11:44-59. [PMID: 32010480 PMCID: PMC6961766 DOI: 10.14336/ad.2019.0415] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 04/15/2019] [Indexed: 12/26/2022] Open
Abstract
Many oncogenes are involved in the progression from low-grade squamous intraepithelial lesions (LSILs) to high-grade squamous intraepithelial lesions (HSILs); which greatly increases the risk of cervical cancer (CC). Thus, a reliable biomarker for risk classification of LSILs is urgently needed. The prolyl isomerase Pin1 is overexpressed in many cancers and contributes significantly to tumour initiation and progression. Therefore, it is important to assess the effects of cancer therapies that target Pin1. In our study, we demonstrated that Pin1 may serve as a biomarker for LSIL disease progression and may constitute a novel therapeutic target for CC. We used a the novel Pin1 inhibitor KPT-6566, which is able to covalently bind to Pin1 and selectively target it for degradation. The results of our investigation revealed that the downregulation of Pin1 by shRNA or KPT-6566 inhibited the growth of human cervical cancer cells (CCCs). We also discovered that the use of KPT-6566 is a novel approach to enhance the therapeutic efficacy of cisplatin (DDP) against CCCs in vitro and in vivo. We showed that KPT-6566-mediated inhibition of Pin1 blocked multiple cancer-driving pathways simultaneously in CCCs. Furthermore, targeted Pin1 treatment suppressed the metastasis and invasion of human CCCs, and downregulation of Pin1 reversed the epithelial-mesenchymal transition (EMT) of CCCs via the c-Jun/slug pathway. Collectively, we showed that Pin1 may be a marker for the risk of progression to HSIL and that inhibition of Pin1 has anticancer effects against CC.
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Affiliation(s)
- Yan-Tong Guo
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Yan Lu
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Yi-Yang Jia
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Hui-Nan Qu
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Da Qi
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Xin-Qi Wang
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Pei-Ye Song
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Xiang-Shu Jin
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Wen-Hong Xu
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Yuan Dong
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Ying-Ying Liang
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Cheng-Shi Quan
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
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He J, Xu JK, Pan XG, Ye XS, Liang YY, Yang GF, Zhang WK. [A new phenylpropanoid glycoside from fruit of Cornus officinalis]. Zhongguo Zhong Yao Za Zhi 2019; 43:4264-4266. [PMID: 30583627 DOI: 10.19540/j.cnki.cjcmm.2018.0113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Indexed: 11/18/2022]
Abstract
To investigate the chemical compounds from the ripe fruit of Cornus officinalis, a new phenylpropanoid glycoside 1-O-(6'-O-p-hydroxybenzoyl-β-D-glucopyranosyl)-p-phenylpropanol, named cornuphenylpropanoid A (1), were separated and purified by D101 macroporous resin, silica gel and ODS column chromatography. Its structure was extensively determined on basis of ¹H-NMR, ¹³C-NMR, DEPT, HSQC, HMBC and HR-ESI-MS spectroscopic data.
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Affiliation(s)
- Jun He
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Jie-Kun Xu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xue-Ge Pan
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China.,Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing 100029, China
| | - Xian-Sheng Ye
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China.,Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing 100029, China
| | - Ying-Ying Liang
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Ge-Fan Yang
- Xianyang Rainbow High School, Xianyang 712021, China
| | - Wei-Ku Zhang
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing 100029, China
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18
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Jin JH, Huang SX, Liang YY, Cui ZZ. [Uvuplopalatal flap in OSAHS patients with anteriorand posterior pharyngeal plane stenosis]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:1817-1820. [PMID: 30550217 DOI: 10.13201/j.issn.1001-1781.2018.23.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Indexed: 06/09/2023]
Abstract
Objective: Observation of the effect of uvuplopalatal flap for OSAHS patients with anterior and posterior pharyngeal stenosis. Method: Fifty-six patients with OSAHS who were mainly anterior posterior stenosis in the velopharyngeal plane were selected. Patients with suspending uvuplopalatal flap were used as observation group (30 cases). Patients with UPPP were used as control group (26 cases). The investigation and comparison of AHI, SaO₂, scars, throat foreign body sensation, pharynx desiccation, pharynx' s tightness, pharynx discomfort and surgical satisfaction were investigated at 6-8 months after the operation. Restul: At 6-8 months after operation, the AHI and SaO₂ of the two groups were significantly improved compared with those before operation(P<0.01). However, there were significant differences(P<0.01) among the indexes of scar formation, throat foreign body, sensation pharynx desiccation, pharynx' s tightness, pharynx discomfort and surgical satisfaction. Conclusion: In the OSAHS patients with anterior and posterior pharyngeal stenosis, the effect of UPF was better than that of UPPP among the indexes of scar formation, pharyngeal symptoms and surgical satisfaction.
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Affiliation(s)
- J H Jin
- Department of Otorhinolaryngology, Affiliated Hospital of Yanbian University College of Medicine, Yanji, 133000, China
| | - S X Huang
- Department of Otorhinolaryngology, Affiliated Hospital of Yanbian University College of Medicine, Yanji, 133000, China
| | - Y Y Liang
- Department of Otorhinolaryngology, Affiliated Hospital of Yanbian University College of Medicine, Yanji, 133000, China
| | - Z Z Cui
- Department of Otorhinolaryngology, Affiliated Hospital of Yanbian University College of Medicine, Yanji, 133000, China
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Liang YY, Xu F, Guo Y, Wang J. Diagnostic accuracy of magnetic resonance imaging techniques for parotid tumors, a systematic review and meta-analysis. Clin Imaging 2018; 52:36-43. [PMID: 29908348 DOI: 10.1016/j.clinimag.2018.05.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 05/11/2018] [Accepted: 05/31/2018] [Indexed: 01/09/2023]
Abstract
OBJECTIVE To assess the added benefit of combining different MRI techniques for preoperative diagnosis of parotid tumors when compared to conventional MRI and advanced MRI techniques alone with meta-analysis. METHODS A comprehensive PubMed electronic database search was performed for original diagnostic studies up to July 2017. The methodologic quality of each study was evaluated by two independent reviewers who used the Quality Assessment of Diagnostic Accuracy Studies 2 (QUADAS-2) tool. Statistical analysis included pooling of sensitivity and specificity with 95% confidence intervals (CI). All analyses were conducted using STATA (version 12.0), RevMan (version 5.2), and Meta-Disc 1.4 software programs. RESULTS Pooled sensitivity and specificity of conventional MRI, diffusion weighted imaging (DWI), dynamic contrast enhanced (DCE) and the above combination were 76% (95%CI)/91% (95%CI)/80% (95%CI)/86% (95%CI) and 83% (95%CI)/56% (95%CI)/90% (95%CI)/90% (95%CI). CONCLUSION Conventional MRI combined with DWI and DCE showed higher diagnostic accuracy than conventional or advanced MRI alone, supporting their use in parotid tumors diagnosis.
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Affiliation(s)
- Ying-Ying Liang
- Department of Radiology, Guangzhou First People's Hospital, Guangzhou Medical University; The Second Affiliated Hospital, South China University of Technology; 1Panfu Road Guangzhou, Guangdong Province 510180, China
| | - Fan Xu
- Department of Radiology, Guangzhou Red Cross Hospital, Medical College, Jinan University, 396 Tongfu Road Guangzhou, Guangdong Province 510220, China
| | - Yuan Guo
- Department of Radiology, Guangzhou First People's Hospital, Guangzhou Medical University; The Second Affiliated Hospital, South China University of Technology; 1Panfu Road Guangzhou, Guangdong Province 510180, China
| | - Jin Wang
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, 600 Tianhe Road Guangzhou, Guangdong Province 510630, China.
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Liang YY, Deng XB, Zeng LS, Lin XT, Shao XF, Wang B, Mo ZW, Yuan YW. RASSF6-mediated inhibition of Mcl-1 through JNK activation improves the anti-tumor effects of sorafenib in renal cell carcinoma. Cancer Lett 2018; 432:75-83. [PMID: 29864454 DOI: 10.1016/j.canlet.2018.05.048] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/30/2018] [Accepted: 05/31/2018] [Indexed: 02/08/2023]
Abstract
Ras association domain family member 6 (RASSF6) has been shown to act as a tumor suppressor and predictor of poor prognosis in renal cell carcinoma (RCC). However, little is known about the effects of RASSF6 on sorafenib resistance or the underlying mechanism. Here, we show that RASSF6 expression positively correlates with sorafenib sensitivity in RCC cells and human samples. Stable ectopic overexpression of RASSF6 in RCC cell lines reduces resistance to sorafenib in vitro and in vivo. At a molecular level, RASSF6 activates the JNK signaling pathway, which further contributes to Mcl-1 inhibition. Suppression of the JNK pathway can partially restore Mcl-1 expression and sorafenib resistance. Together, these findings suggest that RASSF6 inhibits sorafenib resistance by repressing Mcl-1 through the JNK-dependent pathway. RASSF6 may serve as a novel regulator for sorafenib therapy in RCC.
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Affiliation(s)
- Ying-Ying Liang
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China.
| | - Xu-Bin Deng
- Department of Internal Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China.
| | - Li-Si Zeng
- Department of Abdominal Surgery (Section 2), Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China.
| | - Xian-Tao Lin
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China.
| | - Xun-Fan Shao
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China.
| | - Bin Wang
- Department of Urology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China.
| | - Zhi-Wen Mo
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China.
| | - Ya-Wei Yuan
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China.
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21
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Zhou XX, Li XH, Chen DB, Wu C, Feng L, Chu JP, Yang ZY, Li XB, Qin H, Li GD, Huang HW, Liang YY, Liang XL. The asymmetry of neural symptoms in Wilson's disease patients detecting by diffusion tensor imaging, resting-state functional MRI, and susceptibility-weighted imaging. Brain Behav 2018; 8:e00930. [PMID: 29761003 PMCID: PMC5943770 DOI: 10.1002/brb3.930] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 10/25/2017] [Accepted: 01/04/2018] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE To investigate the cause of the motor asymmetry in Wilson's disease (WD) patients using functional MRI. METHODS Fifty patients with WD and 20 age-matched healthy controls were enrolled. Neurological symptoms were scored using the modified Young Scale. All study subjects underwent diffusion tensor imaging (DTI), susceptibility-weighted imaging (SWI), and resting-state functional MRI (rs-fMRI) of the brain. Six regions of interest (ROI) were chosen. Fiber volumes between ROIs on DTI, corrected phase (CP) values on SWI, amplitude of low-frequency fluctuation (ALFF), and regional homogeneity (REHO) values on rs-fMRI were determined. Asymmetry index (right or left value/left or right value) was evaluated. RESULTS Asymmetry of rigidity, tremor, choreic movement, and gait abnormality (asymmetry index = 1.33, 1.39, 1.36, 1.40), fiber tracts between the GP and substantia nigra (SN), GP and PU, SN and thalamus (TH), SN and cerebellum, head of the caudate nucleus (CA) and SN, PU and CA, CA and TH, TH and cerebellum (asymmetry index = 1.233, 1.260, 1.269, 1.437, 1.503, 1.138, 1.145, 1.279), CP values in the TH, SN (asymmetry index = 1.327, 1.166), ALFF values, and REHO values of the TH (asymmetry index = 1.192, 1.233) were found. Positive correlation between asymmetry index of rigidity and fiber volumes between the GP and SN, SN and TH (r = .221, .133, p = .043, .036), and tremor and fiber volumes between the CA and TH (r = .045, p = .040) was found. CONCLUSIONS The neurological symptoms of patients with WD were asymmetry. The asymmetry of fiber projections may be the main cause of motor asymmetry in patients with WD.
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Affiliation(s)
- Xiang-Xue Zhou
- Department of Neurology The East Area of the First Affiliated Hospital Sun Yat-Sen University Guangzhou China
| | - Xun-Hua Li
- Department of Neurology The First Affiliated Hospital Sun Yat-Sen University Guangzhou China
| | - Ding-Bang Chen
- Department of Neurology The First Affiliated Hospital Sun Yat-Sen University Guangzhou China
| | - Chao Wu
- Department of Neurology The First Affiliated Hospital Sun Yat-Sen University Guangzhou China
| | - Li Feng
- Department of Neurology The First Affiliated Hospital Sun Yat-Sen University Guangzhou China
| | - Jian-Ping Chu
- Department of Radiology The First Affiliated Hospital Sun Yat-Sen University Guangzhou China
| | - Zhi-Yun Yang
- Department of Radiology The First Affiliated Hospital Sun Yat-Sen University Guangzhou China
| | - Xin-Bei Li
- Department of Radiology The First Affiliated Hospital Sun Yat-Sen University Guangzhou China
| | - Haolin Qin
- Department of Radiology The East Area of the First Affiliated Hospital Sun Yat-Sen University Guangzhou China
| | - Gui-Dian Li
- Department of Radiology The East Area of the First Affiliated Hospital Sun Yat-Sen University Guangzhou China
| | - Hai-Wei Huang
- Department of Neurology The First Affiliated Hospital Sun Yat-Sen University Guangzhou China
| | - Ying-Ying Liang
- Department of Neurology The East Area of the First Affiliated Hospital Sun Yat-Sen University Guangzhou China
| | - Xiu-Ling Liang
- Department of Neurology The First Affiliated Hospital Sun Yat-Sen University Guangzhou China
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Liang YY, Huang LF, Wang JY. Value of continuous blood purification combined with Qingyi Lidan granules in treatment of severe acute pancreatitis. Shijie Huaren Xiaohua Zazhi 2018; 26:735-741. [DOI: 10.11569/wcjd.v26.i12.735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM To observe the effect of continuous blood purification combined with Qingyi Lidan granules in patients with severe acute pancreatitis with regard to biochemical indexes, inflammatory indexes, and therapeutic effects.
METHODS The clinical data of 150 patients with severe acute pancreatitis treated at Shaoxing Second Hospital from April 2012 to April 2017 were retrospectively analyzed. Among them, 70 patients were given continuous blood purification therapy as a control group, and the other 80 patients were given continuous blood purification combined with Qingyi Lidan granules based on conventional therapy, as an observation group. Biochemical indicators, inflammatory indicators, APACHE Ⅱ score, CTSI score, and therapeutic effects were compared between the two groups.
RESULTS After treatment, APACHE II score was significantly lower in the observation group than in the control group (10.22 ± 2.58 vs 14.03 ± 2.91, P < 0.05). The time to disappearance of abdominal distension and abdominal pain and hospital stay were significantly shorter in the observation group than in the control group (P < 0.05). AMS, LPS, Cr, AST, ALT, and PCT in the observation group were significantly lower than those in the control group (P < 0.05). The levels of IL-8, IL-6, TNF-α, HSP70, HSP72, and HMGB1 in the observation group were also significantly lower than those in the control group (P < 0.05). The total effective rate was significantly higher in the observation group than in the control group (93.75% vs 71.43%, P < 0.05). The mortality rate did not differ significantly between the control group and observation group (8.57% vs 6.25%). The incidence of complications in the control group was significantly higher than that of the observation group (28.57% vs 12.5%, P < 0.05).
CONCLUSION Continuous blood purification combined with Qingyi Lidan granules in patients with severe acute pancreatitis can significantly reduce the inflammatory response and improve biochemical indexes and therapeutic effects.
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Affiliation(s)
- Ying-Ying Liang
- Department of ICU Nursing, Shaoxing Second Hospital, Shaoxing 312000, Zhejiang Province, China
| | - Lan-Fang Huang
- Department of ICU Nursing, Shaoxing Second Hospital, Shaoxing 312000, Zhejiang Province, China
| | - Jin-Ying Wang
- Department of ICU Nursing, Shaoxing Second Hospital, Shaoxing 312000, Zhejiang Province, China
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Qiang YY, Li CZ, Sun R, Zheng LS, Peng LX, Yang JP, Meng DF, Lang YH, Mei Y, Xie P, Xu L, Cao Y, Wei WW, Cao L, Hu H, Yang Q, Luo DH, Liang YY, Huang BJ, Qian CN. Along with its favorable prognostic role, CLCA2 inhibits growth and metastasis of nasopharyngeal carcinoma cells via inhibition of FAK/ERK signaling. J Exp Clin Cancer Res 2018; 37:34. [PMID: 29463274 PMCID: PMC5819171 DOI: 10.1186/s13046-018-0692-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 01/30/2018] [Indexed: 01/23/2023]
Abstract
Background CLCA2 was reported as a tumor suppressor and disregulated in breast cancer. However, its function in tumor growth and metastasis in NPC has rarely been reported. In this study, we investigated the functional and molecular mechanisms by which CLCA2 influences NPC. Methods CLCA2 expression in human NPC cell lines and tissues was examined via real-time PCR (RT-PCR), Western blot and IHC. The biological roles of CLCA2 in proliferative, migration and invasion of NPC cell lines was evaluated in 5-8F, S18, S26 and SUNE-1 cells. Cell viability, migration and invasion were assessed in vitro by MTS, colony formation and transwell assay, respectively. CLCA2 in growth and metastasis of NPC were evaluated in vivo through NPC xenograft tumor growth, lung metastatic mice model and popliteal lymph node (LN) metastasis model. Results Overexpression of CLCA2 significantly decreased proliferation, migration and invasion of NPC cells. In contrast, knockdown of CLCA2 elicited the opposite effects. CLCA2 overexpression suppressed xenograft tumor growth and lung, popliteal lymph node (LN) metastasis in vivo. CLCA2 inhibited tumor metastasis through suppressing epithelial-Mesenchymal transition (EMT) and in-activating FAK/ERK1/2 signaling pathway in NPC cells. Immunohistochemical staining of 143 NPC samples revealed that CLCA2 expression was an independent, favorable prognostic factor for overall survival and distant metastasis-free survival of patients. In addition, inhibition of FAK and ERK1/2 reversed CLCA2 silencing-induced tumor cell migration. Furthermore, inhibitors against chloride channels suppressed NPC cellular migration which could have been enhanced by the presence of CLCA2. Conclusion CLCA2 suppress NPC proliferation, migration, invasion and epithelial-mesenchymal transition through inhibiting FAK/ERK signaling. Electronic supplementary material The online version of this article (10.1186/s13046-018-0692-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yuan-Yuan Qiang
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Chang-Zhi Li
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Rui Sun
- Department of Nasopharyngeal Carcinoma, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Li-Sheng Zheng
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Li-Xia Peng
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Jun-Ping Yang
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Dong-Fang Meng
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Yan-Hong Lang
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Yan Mei
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Ping Xie
- Department of Radiation Oncology, Longyan First Hospital, Affiliated to Fujian Medical University, Longyan, Fujian, China
| | - Liang Xu
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Yun Cao
- Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Wen-Wen Wei
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Li Cao
- Department of Pharmacy, Zhongshan People's Hospital, Zhongshan, Guangdong, China
| | - Hao Hu
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Qin Yang
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Dong-Hua Luo
- Department of Nasopharyngeal Carcinoma, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Ying-Ying Liang
- Department of Radiation Oncology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Bi-Jun Huang
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Chao-Nan Qian
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China. .,Department of Nasopharyngeal Carcinoma, Sun Yat-Sen University Cancer Center, Guangzhou, China. .,State Key Laboratory of Oncology in Southern China, Department of Experimental Research, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, 510060, China.
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Zhu C, Yi N, Shi MN, Liang YY, Zhou YB, Dang R, Qi ZS, Zhao HY. [Effects of functional training combined with self-made hand flexing training band in treatment of scar contracture after burn injury of dorsal hand]. Zhonghua Shao Shang Za Zhi 2017; 33:426-430. [PMID: 28763909 DOI: 10.3760/cma.j.issn.1009-2587.2017.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the effects of functional training combined with self-made hand flexing training band in treatment of scar contracture after burn injury of dorsal hand. Methods: Forty-six patients with scar contracture after deep partial-thickness or full-thickness burn injury of dorsal hand hospitalized in our department from March 2013 to February 2015 were divided into routine training group (RT, n=18) and comprehensive training group (CT, n=28) according to their willingness. Two weeks after the wounds were healed, patients in group RT were treated with functional training of hands and self-made pressure gloves, while patients in group CT were treated with self-made hand flexing training band (consisting of nylon strap, flexing band, and velcro) on the basis of those in group RT. All patients were treated for 3 months. Before and after treatment, scar condition of affected hands was assessed with Vancouver Scar Scale (VSS). The range of motion of joints of affected hands was measured by Total Active Movement (TAM) Scale. The function of affected hands was evaluated by Carroll Upper Extremity Function Test. Data were processed with t test, chi-square test, and Mann-Whitney U test. Results: (1) The score of VSS in patients of group RT was (10.0±1.9) points before treatment and (4.4±1.4) points after treatment, with the improved score of (5.6±1.0) points. The score of VSS in patients of group CT was (10.5±1.8) points before treatment and (4.6±1.4) points after treatment, with the improved score of (5.9±1.2) points. There was no statistically significant difference in the improved score of patients between the two groups (t=0.834, P>0.05). The score of VSS in patients of groups RT and CT after treatment was significantly lower than that before treatment (with t values respectively 14.014 and 10.003, P values below 0.01). (2) Before treatment, the ratios of excellent and good results according to TAM were 2/9 in patients of group RT and 3/14 in group CT, with no statistical differences between them (χ(2)=2.140, P>0.05). After treatment, the ratio of excellent and good results according to TAM in patients of group CT (6/7) was higher than that in group RT (5/9, χ(2)=0.023, P=0.038). The ratios of excellent and good results according to TAM in patients of groups RT and CT after treatment were significantly higher than those before treatment (with Z values respectively -2.023 and -4.780, P values below 0.05). (3) The improved score of hand function in patients of group CT was (26±12) points, which was higher than (15±7) points in group RT (t=3.278, P=0.002). The score of hand function in patients of groups RT and CT after treatment was significantly higher than that before treatment (with t values respectively 2.628 and 6.125, P values below 0.05). There were no significant differences in grades of hand function of patients between the two groups before treatment (Z=-0.286, P>0.05). After treatment, the grade of hand function in patients of group CT was higher than that in group RT(Z=-1.993, P=0.046). The grades of hand function in patients of groups RT and CT after treatment were significantly higher than those before treatment (with Z values respectively -2.717 and -4.998, P values below 0.01). Conclusions: For patients with scar contracture after burn injury of dorsal hand, early functional training combined with hand flexing training band can improve the range of motion of hand joints and functional recovery of hand, and the result was better than functional training alone.
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Affiliation(s)
- C Zhu
- Burn Center of PLA, Department of Burns and Cutaneous Surgery, Xijing Hospital, the Fourth Military Medical University, Xi'an 710032, China
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Wu ZY, Saito Y, Zhao DN, Zhou JQ, Cao ZY, Li SJ, Shang JH, Liang YY. Impact of human activities on subaqueous topographic change in Lingding Bay of the Pearl River estuary, China, during 1955-2013. Sci Rep 2016; 6:37742. [PMID: 27886227 PMCID: PMC5123572 DOI: 10.1038/srep37742] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [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: 05/04/2016] [Accepted: 11/01/2016] [Indexed: 11/15/2022] Open
Abstract
Estuaries have been sites of intensive human activities during the past century. Tracing the evolution of subaqueous topography in estuaries on a decadal timescale enables us to understand the effects of human activities on estuaries. Bathymetric data from 1955 to 2010 show that land reclamation decreased the subaqueous area of Lingding Bay, in the Pearl River estuary, by ~170 km2 and decreased its water volume by 615 × 106 m3, representing a net decrease of 11.2 × 106 m3 per year and indicating the deposition of approximately 14.5 Mt/yr of sediment in Lingding Bay during that period. Whereas Lingding Bay was mainly governed by natural processes with slight net deposition before 1980, subsequent dredging and large port engineering projects changed the subaqueous topography of the bay by shallowing its shoals and deepening its troughs. Between 2012 and 2013, continuous dredging and a surge of sand excavation resulted in local changes in water depth of ± 5 m/yr, far exceeding the magnitude of natural topographic evolution in Lingding Bay. Reclamation, dredging, and navigation-channel projects removed 8.4 Mt/yr of sediment from Lingding Bay, representing 29% of the sediment input to the bay, and these activities have increased recently.
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Affiliation(s)
- Z Y Wu
- Key Laboratory of Submarine Geosciences and Second Institute Oceanography, State Oceanic Administration, Hangzhou 310012, China.,School of Earth Sciences, Zhejiang University, Hangzhou 310027, China
| | - Yoshiki Saito
- Geological Survey of Japan, AIST, Central 7, Higashi 1-1-1, Tsukuba, Ibaraki 305-8567, Japan.,ReCCLE, Shimane University, 1060, Nishikawatsu-Cho, Matsue 690-8504, Japan
| | - D N Zhao
- School of Earth Sciences, Zhejiang University, Hangzhou 310027, China
| | - J Q Zhou
- School of Earth Sciences, Zhejiang University, Hangzhou 310027, China
| | - Z Y Cao
- Key Laboratory of Submarine Geosciences and Second Institute Oceanography, State Oceanic Administration, Hangzhou 310012, China
| | - S J Li
- Key Laboratory of Submarine Geosciences and Second Institute Oceanography, State Oceanic Administration, Hangzhou 310012, China
| | - J H Shang
- Key Laboratory of Submarine Geosciences and Second Institute Oceanography, State Oceanic Administration, Hangzhou 310012, China
| | - Y Y Liang
- Key Laboratory of Submarine Geosciences and Second Institute Oceanography, State Oceanic Administration, Hangzhou 310012, China
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Qin L, Yin YT, Zheng FJ, Peng LX, Yang CF, Bao YN, Liang YY, Li XJ, Xiang YQ, Sun R, Li AH, Zou RH, Pei XQ, Huang BJ, Kang TB, Liao DF, Zeng YX, Williams BO, Qian CN. WNT5A promotes stemness characteristics in nasopharyngeal carcinoma cells leading to metastasis and tumorigenesis. Oncotarget 2016; 6:10239-52. [PMID: 25823923 PMCID: PMC4496352 DOI: 10.18632/oncotarget.3518] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Accepted: 02/17/2015] [Indexed: 01/20/2023] Open
Abstract
Nasopharyngeal carcinoma (NPC) has the highest metastasis rate among head and neck cancers with unclear mechanism. WNT5A belongs to the WNT family of cysteine-rich secreted glycoproteins. Our previous high-throughput gene expression profiling revealed that WNT5A was up-regulated in highly metastatic cells. In the present study, we first confirmed the elevated expression of WNT5A in metastatic NPC tissues at both the mRNA and protein levels. We then found that WNT5A promoted epithelial-mesenchymal transition (EMT) in NPC cells, induced the accumulation of CD24-CD44+ cells and side population, which are believed to be cancer stem cell characteristics. Moreover, WNT5A promoted the migration and invasion of NPC cells in vitro, while in vivo treatment with recombinant WNT5A promoted lung metastasis. Knocking down WNT5A diminished NPC tumorigenesis in vivo. When elevated expression of WNT5A coincided with the elevated expression of vimentin in the primary NPC, the patients had a poorer prognosis. Among major signaling pathways, protein kinase C (PKC) signaling was activated by WNT5A in NPC cells. A positive feedback loop between WNT5A and phospho-PKC to promote EMT was also revealed. Taken together, these data suggest that WNT5A is an important molecule in promoting stem cell characteristics in NPC, leading to tumorigenesis and metastasis.
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Affiliation(s)
- Li Qin
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.,Hunan Province Engineering Research Center of Bioactive Substance Discovery of Traditional Chinese Medicine, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan, China.,Division of Pharmacoproteomics, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, Hunan, China
| | - Yan-Tao Yin
- Division of Pharmacoproteomics, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, Hunan, China
| | - Fang-Jing Zheng
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.,Department of Radiotherapy, Ningde Municipal Hospital, Fujian Medical University Affiliated Hospital, Ningde, Fujian, China
| | - Li-Xia Peng
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Chang-Fu Yang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Ying-Na Bao
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Ying-Ying Liang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xin-Jian Li
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.,Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Yan-Qun Xiang
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Rui Sun
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - An-Hua Li
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.,Department of Ultrasonography, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Ru-Hai Zou
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.,Department of Ultrasonography, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Xiao-Qing Pei
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.,Department of Ultrasonography, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Bi-Jun Huang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Tie-Bang Kang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Duan-Fang Liao
- Division of Stem Cell Regulation and Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Yi-Xin Zeng
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Bart O Williams
- Laboratory of Cell Signaling and Carcinogenesis, Van Andel Research Institute, Grand Rapids, Michigan, USA
| | - Chao-Nan Qian
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.,Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
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Chen YQ, Pei HH, Liang YY, Yao SZ. Efficacy of tension-free vaginal tape obturator and single-incision tension-free vaginal tape-Secur, hammock approach, in the treatment of stress urinary incontinence. MINERVA UROL NEFROL 2014; 66:165-173. [PMID: 25072131] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM Aim of the present study was to compare the efficacy of tension-free vaginal tape obturator and single-incision tension-free transvaginal tape Secur, hammock approach, in the treatment of stress urinary incontinence. METHODS Clinical data of patients who received anti-incontinence surgery between June 2008 and July 2012 were retrospectively analyzed. Efficacy and early failure rate of the tension-free vaginal tape obturator and tension-free vaginal tape-Secur hammock approach were assessed by cough test and criteria of International Consultation on Incontinence Questionnaire-Short Form. Intraoperative and postoperative complications were also computed. RESULTS There were 28 patients in the tension-free vaginal tape obturator group while 32 patients in the tension-free vaginal tape-Secur group. The mean operation time, intraoperative blood loss and inpatient days after surgery between the two groups showed no significant difference. The catheter retention time of the tension-free vaginal tape obturator group was longer than in the tension-free vaginal tape-Secur group. The cure rate of the tension-free vaginal tape obturator and tension-free vaginal tape-Secur groups were respectively 84% and 80%, and the recurrence rates were 14.3% and 16.7%, without significant difference. The scores of International Consultation on Incontinence Questionnaire-Short Form in two groups both decreased after surgery, but there was no difference between the two groups. There were no serious complications in the two groups. CONCLUSION Our study demonstrated that both tension-free vaginal tape obturator and tension-free vaginal tape-Secur can achieve a cure rate over 80% while with little complications, showing both methods are reliable to treat stress urinary incontinence.
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Affiliation(s)
- Y Q Chen
- Department of Obstetrics and Gynecology, First Hospital, Sun Yat-Sen University, Guangzhou, China -
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28
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Liang YY, Chen MY, Hua YJ, Chen S, Zheng LS, Cao X, Peng LX, Xie P, Huang BJ, Sun R, Wang L, Xiang YQ, Guo X, Qian CN. Downregulation of Ras association domain family member 6 (RASSF6) underlies the treatment resistance of highly metastatic nasopharyngeal carcinoma cells. PLoS One 2014; 9:e100843. [PMID: 25028967 PMCID: PMC4100732 DOI: 10.1371/journal.pone.0100843] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 05/30/2014] [Indexed: 11/24/2022] Open
Abstract
Radiation and cisplatin-based chemotherapy are major treatments for nasopharyngeal carcinoma (NPC). However, a major impediment for further improving the cure rate is the development of treatment resistance with an undetermined molecular mechanism in metastatic NPC cells. Our established, highly metastatic NPC cells have been reported to be more resistant to cisplatin chemotherapy. In the present study, we found that Ras association domain family member 6 (RASSF6) was downregulated in highly metastatic cells but upregulated in low metastatic cells in comparison to their parental cell line. Ectopic-expression of RASSF6 enhanced the sensitivity of highly metastatic NPC cells to cisplatin or radiation by enhancing apoptosis. RASSF6 depletion conversely reduced treatment sensitivity by decreasing the apoptosis rate. Over-expression of RASSF6 in highly metastatic NPC cells could enhance the phosphorylation of JNK when exposed to cisplatin or radiation treatment, while knocking down RASSF6 in low metastatic NPC cells could reduce the level of phospho-JNK when exposed to the same treatments. The activation of JNK signaling by RASSF6 and its subsequent sensitivity to apoptosis in NPC cells could be inhibited by applying the JNK inhibitor SP600125. In conclusion, the downregulation of RASSF6 in highly metastatic NPC cells contributed to their treatment resistance, and over-expression of RASSF6 conferred treatment sensitivity to highly metastatic NPC cells by activating JNK signaling. RASSF6 could be a valuable molecular marker for identifying sensitive metastatic NPC tumors during cisplatin treatment or radiotherapy.
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Affiliation(s)
- Ying-Ying Liang
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Ming-Yuan Chen
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yi-Jun Hua
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Shi Chen
- Department of Gastroesophageal surgery, The Sixth Affliated Hospital (Gastrointestinal and Anal Hospital), Sun Yat-sen University, GuangZhou, China
| | - Li-Sheng Zheng
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xue Cao
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Li-Xia Peng
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Ping Xie
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Bi-Jun Huang
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Rui Sun
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Lin Wang
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yan-Qun Xiang
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xiang Guo
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Chao-Nan Qian
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, China
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29
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Bao YN, Cao X, Luo DH, Sun R, Peng LX, Wang L, Yan YP, Zheng LS, Xie P, Cao Y, Liang YY, Zheng FJ, Huang BJ, Xiang YQ, Lv X, Chen QY, Chen MY, Huang PY, Guo L, Mai HQ, Guo X, Zeng YX, Qian CN. Urokinase-type plasminogen activator receptor signaling is critical in nasopharyngeal carcinoma cell growth and metastasis. Cell Cycle 2014; 13:1958-69. [PMID: 24763226 DOI: 10.4161/cc.28921] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [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: 11/19/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) is one of the most common malignancies in southern China and Southeast Asia, with the highest metastasis rate among head and neck cancers. The mechanisms underlying NPC progression remain poorly understood. Genome-wide expression profiling on 18 NPC vs. 18 noncancerous nasopharyngeal tissues together with GeneGo pathway analysis and expression verification in NPC cells and tissues revealed a potential role of urokinase-type plasminogen activator receptor (uPAR) in NPC progression, which has not been investigated in NPC. We then observed that uPAR expression is increased in poorly differentiated, highly metastatic NPC cells compared with lowly metastatic cells or differentiated NPC cells. In vitro studies demonstrated that uPAR regulates NPC cell growth, colony formation, migration, and invasion and promotes the epithelial-mesenchymal transition (EMT). Additional tumor xenograft and spontaneous metastasis experiments revealed that uPAR promotes NPC cell growth and metastasis in vivo. The JAK-STAT pathway is involved in uPAR-regulated signaling in NPC cells as determined by immunoblotting. Moreover, uPAR-mediated growth and motility is partially abolished upon treatment with the Jak1/Jak2 inhibitor INCB018424. We suppressed uPA expression in uPAR-overexpressing NPC cells and found that uPAR-mediated cellular growth and motility is not exclusively dependent on uPA. In summary, uPAR is a significant regulator of NPC progression and could serve as a promising therapeutic target.
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Affiliation(s)
- Ying-Na Bao
- State Key Laboratory of Oncology in South China; Sun Yat-sen University Cancer Center; Guangzhou, China; Department of Radiotherapy; Affiliated Hospital of Inner Mongolia Medical University; Hohhot City, Inner Mongolia Autonomous Region, China
| | - Xue Cao
- State Key Laboratory of Oncology in South China; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Dong-Hua Luo
- Department of Nasopharyngeal Carcinoma; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Rui Sun
- Department of Nasopharyngeal Carcinoma; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Li-Xia Peng
- State Key Laboratory of Oncology in South China; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Lin Wang
- Department of Nasopharyngeal Carcinoma; Sun Yat-sen University Cancer Center; Guangzhou, China
| | | | - Li-Sheng Zheng
- State Key Laboratory of Oncology in South China; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Ping Xie
- State Key Laboratory of Oncology in South China; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Yun Cao
- State Key Laboratory of Oncology in South China; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Ying-Ying Liang
- State Key Laboratory of Oncology in South China; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Fang-Jing Zheng
- State Key Laboratory of Oncology in South China; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Bi-Jun Huang
- State Key Laboratory of Oncology in South China; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Yan-Qun Xiang
- Department of Nasopharyngeal Carcinoma; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Xing Lv
- Department of Nasopharyngeal Carcinoma; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Qiu-Yan Chen
- Department of Nasopharyngeal Carcinoma; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Ming-Yuan Chen
- Department of Nasopharyngeal Carcinoma; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Pei-Yu Huang
- Department of Nasopharyngeal Carcinoma; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Ling Guo
- Department of Nasopharyngeal Carcinoma; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Hai-Qiang Mai
- Department of Nasopharyngeal Carcinoma; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Xiang Guo
- Department of Nasopharyngeal Carcinoma; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Yi-Xin Zeng
- State Key Laboratory of Oncology in South China; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Chao-Nan Qian
- State Key Laboratory of Oncology in South China; Sun Yat-sen University Cancer Center; Guangzhou, China; Department of Nasopharyngeal Carcinoma; Sun Yat-sen University Cancer Center; Guangzhou, China
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Liang YY, Zheng LS, Wu YZ, Peng LX, Cao Y, Cao X, Xie P, Huang BJ, Qian CN. RASSF6 promotes p21(Cip1/Waf1)-dependent cell cycle arrest and apoptosis through activation of the JNK/SAPK pathway in clear cell renal cell carcinoma. Cell Cycle 2014; 13:1440-9. [PMID: 24626183 DOI: 10.4161/cc.28416] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [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: 01/19/2023] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) is a highly aggressive and common pathological subtype of renal cancer. This cancer is characterized by biallelic inactivation of the von Hippel-Lindau (VHL) tumor suppressor gene, which leads to the accumulation of hypoxia-inducible factors (HIFs). Although therapies targeted at HIFs can significantly improve survival, nearly all patients with advanced ccRCC eventually succumb to the disease. Thus, additional oncogenic events are thought to be involved in the development of ccRCC tumors. In this study, we investigated the role of RASSF6 in ccRCC. Downregulation of RASSF6 was commonly observed in primary tumors relative to matched adjacent normal tissues. Moreover, functional studies established that ectopic re-expression of RASSF6 in ccRCC cells inhibited cell proliferation, clonogenicity, and tumor growth in mice, whereas silencing of RASSF6 dramatically enhanced cell proliferation in vitro and in vivo. Mechanistic investigation suggested that RASSF6 triggers p21(Cip1/Waf1) accumulation to induce G 1 cell cycle arrest and promote apoptosis upon exposure to pro-apoptotic agents, and both of these mechanisms appear to be mediated by activated JNK signaling. Together, these findings suggest that RASSF6 may play a tumor suppressor role in the progression of ccRCC.
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Affiliation(s)
- Ying-Ying Liang
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center of Cancer Medicine; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Li-Sheng Zheng
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center of Cancer Medicine; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Yuan-Zhong Wu
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center of Cancer Medicine; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Li-Xia Peng
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center of Cancer Medicine; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Yun Cao
- Department of Pathology; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Xue Cao
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center of Cancer Medicine; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Ping Xie
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center of Cancer Medicine; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Bi-Jun Huang
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center of Cancer Medicine; Sun Yat-sen University Cancer Center; Guangzhou, China
| | - Chao-Nan Qian
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center of Cancer Medicine; Sun Yat-sen University Cancer Center; Guangzhou, China
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Zhou XX, Qin HL, Li XH, Huang HW, Liang YY, Liang XL, Pu XY. Characterizing brain mineral deposition in patients with Wilson disease using susceptibility-weighted imaging. Neurol India 2014; 62:362-6. [DOI: 10.4103/0028-3886.141221] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Yang CF, Peng LX, Huang TJ, Yang GD, Chu QQ, Liang YY, Cao X, Xie P, Zheng LS, Huang HB, Cai MD, Huang JL, Liu RY, Zhu ZY, Qian CN, Huang BJ. Cancer stem-like cell characteristics induced by EB virus-encoded LMP1 contribute to radioresistance in nasopharyngeal carcinoma by suppressing the p53-mediated apoptosis pathway. Cancer Lett 2013; 344:260-71. [PMID: 24262659 DOI: 10.1016/j.canlet.2013.11.006] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [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: 09/13/2013] [Revised: 11/02/2013] [Accepted: 11/10/2013] [Indexed: 12/26/2022]
Abstract
Emerging evidence confirms that cancer stem cells (CSCs) are responsible for the chemoradioresistance of malignancies. EBV-encoded latent membrane protein 1 (LMP1) is associated with tumor relapse and poor prognosis of nasopharyngeal carcinoma (NPC). However, whether LMP1 induces the development of CSCs and the mechanism by which this rare cell subpopulation leads to radioresistance in NPC remain unclear. In the present study, LMP1-transformed NPC cells showed significant radioresistance compared to the empty vector control. We found that LMP1 up-regulated the expression of several stemness-related genes, increased the cell number of side population (SP) by flow cytometry analysis, enhanced the self-renewal properties of the cells in a spherical culture and enhanced the in vivo tumor initiation ability. We also found that LMP1 positively regulated the expression of the CSC marker CD44. The CD44(+/High) subpopulation of the LMP1-transformed NPC cells displayed more significant CSC characteristics than the CD44(-/Low) subpopulation of the LMP1-transformed NPC cells; these characteristics included the upregulation of stemness-related genes, in vitro self-renewal and in vivo tumor initiation ability. Importantly, the CD44(+/High) subpopulation displayed more radioresistance than the CD44(-/Low) subpopulation. Our results also demonstrated that phosphorylation of the DNA damage response (DDR) proteins, ATM, Chk1, Chk2 and p53, was inactivated in the LMP1-induced CD44(+/High) cells in response to DNA damage, and this was accompanied by a downregulation of the p53-targeted proapoptotic genes, which suggested that the inactivation of the p53-mediated apoptosis pathway was responsible for the radioresistance in the CD44(+/High) cells. Taken together, we found that LMP1 induced an increase in CSC-like CD44(+/High) cells, and we determined the molecular mechanism underlying the radioresistance of the LMP1-activated CSCs, highlighting the need of CSC-targeted radiotherapy in EBV-positive NPC.
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Affiliation(s)
- Chang-Fu Yang
- Department of Cancer Chemotherapy, The People's Hospital of Gaozhou, Guangdong Province, China
| | - Li-Xia Peng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China; Department of Experimental Research, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Tie-Jun Huang
- Department of Nuclear Medicine, The Second People's Hospital of Shenzhen, Shenzhen, China
| | - Guang-Da Yang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China; Department of Experimental Research, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Qiao-Qiao Chu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Ying-Ying Liang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China; Department of Experimental Research, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Xue Cao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China; Department of Experimental Research, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Ping Xie
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China; Department of Experimental Research, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Li-Sheng Zheng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China; Department of Experimental Research, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Hong-Bing Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Mao-De Cai
- Department of Cancer Chemotherapy, The People's Hospital of Gaozhou, Guangdong Province, China
| | - Jia-Ling Huang
- Department of Medicine, Division of Infectious Diseases, University of Pennsylvania School of Medicine, Philadelphia, USA
| | - Ran-Yi Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Zhen-Yu Zhu
- Department of Biochemistry & Molecular Biology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Chao-Nan Qian
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China; Department of Nasopharyngeal Carcinoma, Sun Yat-Sen University Cancer Center, Guangzhou, China.
| | - Bi-Jun Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China; Department of Experimental Research, Sun Yat-Sen University Cancer Center, Guangzhou, China.
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Guo X, Liang YY, Liu HY, Cui LL, Jiang J. Study on the electrostatic and piezoelectric properties of positive polypropylene electret cyclosporine A patch. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/418/1/012148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Cui LL, Liang YY, Dong FJ, Ma L, Tu Y, Liu HY, Jiang J. Structure of rat skin after application of electret characterized by DSC. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1742-6596/301/1/012027] [Citation(s) in RCA: 7] [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: 11/11/2022]
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Liang YY, Ye DN, Laowtammathron C, Phermthai T, Nagai T, Somfai T, Parnpai R. Effects of Chemical Activation Treatment on Development of Swamp Buffalo (Bubalus bubalis) Oocytes Matured In Vitro and Fertilized by Intracytoplasmic Sperm Injection. Reprod Domest Anim 2011; 46:e67-73. [DOI: 10.1111/j.1439-0531.2010.01636.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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36
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Cui LL, Hou XM, Jiang J, Li GD, Liang YY, Xin X. Comparative enhancing effects of electret with chemical enhancers on transdermal delivery of meloxicam in vitro. ACTA ACUST UNITED AC 2008. [DOI: 10.1088/1742-6596/142/1/012015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jiang J, Liang YY, Cui LL, Hou XM, Tang Y, Ye XT, Yang YJ, Song MH. Influence of porous PTFE/LDPE/PP composite electret in skin ultrastructure. ACTA ACUST UNITED AC 2008. [DOI: 10.1088/1742-6596/142/1/012050] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Liang YY, Zhou YX, Chen H, Note R, Mizuseki H, Kawazoe Y. Current through single conjugated molecules: calculations versus measurements. J Chem Phys 2008; 129:024901. [PMID: 18624557 DOI: 10.1063/1.2951986] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We use density functional theory based nonequilibrium Green's function to calculate the current through the different rodlike molecules at the finite temperatures self-consistently, which was compared to the experimental measurements presented by Reichert et al. [Phys. Rev. Lett. 88, 176804 (2002)] and by Mayor et al. [Angew. Chem. Int. Ed. 42, 5834 (2003)], respectively. Our results agree with the measurements very well, especially for the bias around +/-1.0 V. The investigation of the topological effect for the symmetrical molecule reveals the fact that the para position compound provides a considerably larger conductance than the meta one.
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Affiliation(s)
- Y Y Liang
- Physics Department, Fudan University, Shanghai 200433, People's Republic of China
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Liang YY, Jiang F, Zhou YX, Chen H, Note R, Mizuseki H, Kawazoe Y. Ab initiostudy of single-molecule rotation switch based on nonequilibrium Green’s function theory. J Chem Phys 2007; 127:084107. [PMID: 17764229 DOI: 10.1063/1.2771156] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [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 bistable molecular switches have been studied theoretically based on the first-principles calculation. The geometry structures of the switches studied in this paper can be triggered between two symmetrical structures by using an external applied electric field. I-V characteristic curves of the different molecule configurations have been calculated, and distinguishability of these characteristic curves indicates a switching behavior, the performance of which can be improved significantly by some suitable donors and acceptors.
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Affiliation(s)
- Y Y Liang
- Physics Department, Fudan University, Shanghai 200433, People's Republic of China
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Doursout MF, Joseph PM, Liang YY, Hartley CJ, Chelly JE. Role of propofol and its solvent, intralipid, in nitric oxide-induced peripheral vasodilatation in dogs. Br J Anaesth 2002; 89:492-8. [PMID: 12402731] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023] Open
Abstract
BACKGROUND The commercial propofol preparation in an intralipid solution causes marked vasodilatation. Both propofol and its solvent seem to stimulate the nitric oxide (NO) pathway. The role of intralipid in cardiac and regional haemodynamic changes induced by propofol and their respective interactions with the NO pathway was assessed. METHODS Dogs were instrumented to record arterial pressure, heart rate, cardiac output, dP/dt (the first derivative of left ventricular pressure) and vertebral, carotid, coronary, mesenteric, hepatic, portal and renal blood flows. Experimental groups were as follows. Group 1 (control; n = 11): N-methyl-L-arginine (L-NMA) 20 mg kg-1 i.v.; Group 2 (n = 8): propofol (10 mg ml-1) 4 mg kg-1 i.v. bolus followed by 0.6 mg kg-1 min-1; Group 3 (n = 6): intralipid 0.25 ml kg-1 bolus followed by 0.06 ml kg-1 min-1. After 60 min, L-NMA was injected in Groups 2 and 3. RESULTS Propofol induced increases in heart rate, coronary and carotid blood flows, and decreases in systemic vascular resistance and dP/dt. Intralipid increased renal blood flow, carotid vascular resistance and mesenteric vascular resistance. In the presence of intralipid, L-NMA-induced pressor response and systemic, carotid and renal vasoconstriction were more pronounced than in control dogs. CONCLUSIONS Except for the coronary and carotid circulations, intralipid modulates the NO pathway in cardiac and regional blood flow.
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Affiliation(s)
- M F Doursout
- Department of Anesthesiology, University of Texas-Houston Medical School, 6431 Fannin, MSB 5.020 Houston, TX 77030-1503, USA
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Wang DS, Shi XD, Liang YY. [Regulation of Chinese medicine bailong and hexamethylene bisacetamide on cyclin dependent kinase inhibitor P16 genes in human cancer cell]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2001; 21:763-6. [PMID: 12575612] [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: 02/28/2023]
Abstract
OBJECTIVE To study the regulation of bailong, a Chinese herbal anticancer preparation and hexamethylene bisacetamide (HMBA) on cyclin dependent kinase inhibitor P16 (CKI-P16) genes in human cancer cells. METHODS The expression of CKI-P16 in different human cancer cells treated by Bailong or HMBA under different condition, was examined using Northern hybridization, Western blotting assay, etc. RESULTS After being treated by Bailong or HMBA, the P16 expression increased. This effect was closely related to co-regulation of cAMP-PKA and DAC-PKC signal pathway. When PKA pathway was blocked with PKA inhibitor, the P16 expression decreased, while PKC pathway was blocked, it enhanced. CONCLUSION (1) The low P16 expression in G1 phase of cancer cell, as compared with that in S, G2 and M phases, might be an important factor responsible to the incompetence of P16 in inhibiting effectively the malignant change of cancer cell. (2) Mechanism of Bailong and HMBA on cancer cell proliferation inhibition might be correlated with the enhancement of P16 expression in G1 phase of cancer cells. (3) Regulation and expression of Bailong and HMBA on P16 showed the common character of Chinese and western medicine in regulating cancer cells. (4) This study elucidated that upstream of P16 was related to cAMP/PKC signal pathway closely.
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Affiliation(s)
- D S Wang
- School of Clinical Oncology, Peking University, Beijing Institute for Cancer Research, Beijing 100034
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Oguchi T, Doursout MF, Kashimoto S, Liang YY, Hartley CJ, Chelly JE. Role of heparin and nitric oxide in the cardiac and regional hemodynamic properties of protamine in conscious chronically instrumented dogs. Anesthesiology 2001; 94:1016-25. [PMID: 11465593 DOI: 10.1097/00000542-200106000-00016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Because protamine is administered to reverse heparin, a drug that might itself affect the pharmacologic properties of protamine, this study was designed to assess the properties of protamine alone and in the presence of heparin in conscious dogs. METHODS Twelve dogs were instrumented to continuously record cardiac and regional hemodynamics. On separate occasions, a dose of protamine (0.5, 1, 3, 5, and 8 mg/kg) was randomly administered either alone or in the presence of heparin (ratio 100 IU/mg). Heparin (300 IU/kg) and protamine (3 mg/kg) were administered in the presence of N-methyl-L-arginine, a specific nitric oxide synthase inhibitor. Identical experiments were performed with protamine (8 mg/kg) in the absence of heparin on a separate occasion. RESULTS Protamine alone produced limited cardiac and regional changes. In the presence of heparin, protamine produced hypotension at 3, 5, and 8 mg/kg, vasodilatation at 3 and 5 mg/kg, and a more pronounced dose-dependent increase in pulmonary pressure at 3, 5, and 8 mg/kg. Simultaneously, transient carotid vasodilatation at 3 and 5 mg/kg, coronary and hepatic vasodilatation at 3, 5, and 8 mg/kg, as well as a decrease in vertebral vascular resistance were recorded at 1, 3, and 8 mg/kg. Protamine produced an immediate increase followed by a secondary decrease in renal vascular resistance. Protamine-induced secondary pulmonary pressor effects were attenuated. In the presence of heparin, nitric oxide synthase blockade selectively attenuated protamine-induced immediate hypotension, systemic vasodilatation, and coronary, mesenteric, and hepatic vasodilations as well as the decrease in portal blood flow and accentuated the renal vasoconstriction. CONCLUSIONS The presence of heparin accentuated the decrease in cardiac function induced by protamine as well as its effects on regional circulation. The data provide evidence that the nitric oxide pathway is involved in the systemic and selective regional heparin-protamine-mediated vasodilatation in conscious dogs.
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Affiliation(s)
- T Oguchi
- Department of Anesthesiology, Yamanashi Medical University, Japan
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Li BY, Liang YY, Wang DS. [Regulative effects of bailong and Hexamethylene bisacetamide on growth and phenotype of human gastric cancer cells in cell cycle]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2001; 21:354-8. [PMID: 12577421] [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: 02/28/2023]
Abstract
OBJECTIVE To investigate and compare the common effect of Bailong, a Chinese herbal preparation, and Hexamethylene bisacetamide (HMBA), a western cell differentiation inducer, on growth regulation and phenotype of human gastric cancer (MGC80-3) cells in different phases of cell cycle. METHODS Synchronized MGC80-3 cells in monolayer cultures with nitrous oxide under high pressure were double blocked with overdosage of TdR in the 4 cellular phases (G1, S, G2 and M), and then collected and treated with Bailong and 5 mmol/L HMBA respectively. RESULTS Both medicines could suppress the cell proliferation, soft agar cloning growth and microfilament assembling of different phases of cells, the effect on cells of G1 phase was the most significant one. CONCLUSION Bailong and HMBA had significant common characteristics in inducing cell differentiation of MGC80-3 cells in different phases of cell cycle.
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Affiliation(s)
- B Y Li
- Beijing Institute for Cancer Research, School of Clinical Oncology, Peking University, Beijing 100034
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Li BY, Liang YY, Wang DS. [Study on common character of regulative molecular mechanism of Chinese drug bailong and hexamethylen bisacetamide in human cancer cell cycle and their oncogene and tumor suppressor gene expression]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2001; 21:286-90. [PMID: 12577360] [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: 02/28/2023]
Abstract
OBJECTIVE To investigate the common regulative effects of the Chinese drug Bailong and hexamethylen bisacetamide (HMBA) on expressions of oncogenes (c-H-ras and c-myc), and tumor suppressor genes (Rb, p53 and p21) of MGC80-3 in human cancer cell cycle. METHODS Adopting RNA Northern Blot to survey the levels of gene expressions of MGC80-3 different phases cells treated with Bailong and HMBA respectively. RESULTS In different phases of MGC80-3 cells treated with Bailong and differentiation inducer HMBA, expressions of oncogenes c-H-ras and c-myc were inhibited by over 50.0%, messenger kinase subspecies PKC-alpha gene is similar with the expression inhibition of oncogenes, except effect of Bailong on the G2 phase in cell cycle. Effect of Bailong differs greatly from HMBA in the expression of tumor suppression genes. The expression of Rb and p21 in cells treated by HMBA did not increase but were inhibited by 39.5% and 33.3% respectively in G1 phase. The level of Rb gene expression was decreased, too by 3.0% in S phase. Comparison with HMBA the expression of Rb and p21 genes were increased after treatment by Bailong in all cell cycle. But the effect of Bailong on the expression of p53 gene which was increased obviously by 125.0%-233.4% in majority phase of MGC80-3 cells is similar to HMBA. CONCLUSION (1) The effect of Bailong on the regulation of oncogenes and tumor suppressor gene is similar to HMBA but the effect of Bailong is better than that of HMBA. (2) Molecular mechanism of the Bailong or HMBA on the proliferative inhibition and differentiation of MGC80-3 related to regulation of the Bailong and HMBA on the oncogenes and tumor suppressor genes in cell cycle of MGC80-3.
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Affiliation(s)
- B Y Li
- School of Clinical Oncology, Peking University, Beijing Institute of Cancer Research, Beijing 100034
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He QY, Liang YY, Wang DS, Li DD. [Characterization of cell death induced by anticancer antibiotic lidamycin in human hepatoma BEL-7402 cells]. Yao Xue Xue Bao 2001; 36:174-8. [PMID: 12580082] [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: 02/28/2023]
Abstract
AIM To study the features of cell death induced by the anticancer antibiotic lidamycin (LDM) in human hepatoma BEL-7402 cells. METHODS Chromatin condensation was observed by co-staining with fluorescent dyes, hoechst 33342 and propidium iodide. "G1 sub-peak" was detected by flow cytometry and DNA ladder was observed using agarose gel electrophoresis. The caspase-3, 6 activities were measured with kits specific for them. RESULTS Typical apoptotic chromatin condensations appeared when the BEL-7402 cells were treated with the conventional antitumor agent mitomycin C30 mumol.L-1 for 12 h. However, an abnormal type of chromatin condensation occurred when the cells were treated with LDM 1 mumol.L-1 for 6 h, which was characterized with keeping the completeness of nuclear membrane and not forming apoptotic bodies. The DNA ladder patterns were observed using agarose gel electrophoresis. The "G1 sub-peak" occurred only in the cells treated with LDM for 24 h, though chromatin condensation was earlier detected in treatment with LDM for 6 h. The caspase-3, 6 activities were increased about 5 and 4 folds, after the cells were treated with LDM 1 mumol.L-1 for 6 h, as did mitomycin C. The time of initiating chromatin condensation was earlier than that of the high peak activities of caspase-6. CONCLUSION The characterization of cell death induced by lidamycin in the human hepatoma BEL-7402 cells differs from typical apoptosis. The results make it helpful to explain the molecular mechanism of the highly potent cytotoxicities of lidamycin toward tumor cells.
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Affiliation(s)
- Q Y He
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China
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Yan XM, Tao ZQ, Liang YY, Chen ZJ, Zhang JS, Xu XH. Effect of catecholamic acid on detoxication and distribution of NiCl2 in mice and rats. Zhongguo Yao Li Xue Bao 1998; 19:80-4. [PMID: 10375767] [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: 02/12/2023]
Abstract
AIM To study the effect of catecholamic acid (CBMIDA) on detoxication of NiCl2. METHODS Mice and rats were injected s.c. or i.m. CBMIDA immediately after i.p. NiCl2. Each mouse was injected i.p. CBMIDA after i.v. 63NiCl2 185 kBq, and radioactivities of various tissues were measured with liquid scintillation counter at 24 h. The localization of 63Ni was shown by the whole-body autoradiography. RESULTS CBMIDA s.c. 0.5-1.5 g.kg-1 markedly reduced the mortality from acute poisoning of i.p. NiCl2 500 mg.kg-1. After i.p. NiCl2 in mice, the LD50 was 82.7 mg.kg-1. Mice were injected s.c. CBMIDA 1.5 or 2.5 g.kg-1 after Ni poisoning, the LD50 of NiCl2 were raised to 789 or 820 mg.kg-1, respectively. The LD50 of NiCl2 was 39 mg.kg-1 in rat. If CBMIDA was injected i.m. 0.5 g.kg-1 after i.p. NiCl2, the LD50 was 332 mg.kg-1. CBMIDA 1.5 g.kg-1 i.m. after i.v. 63NiCl2, decreased the contents of 63Ni in blood and lung of mice vs control mice at 24 h. The contents of 63Ni in brain, heart, spleen, and kidney were similar to those of the control mice. The content of 63Ni in bone was more than the control. The excretions of 63Ni through urine and feces were not increased by CBMIDA at 24 h. The whole-body autoradiography showed that the radioactivity was highly localized in the kidney, lung, and Harder's gland. There was a moderate level of 63Ni in the liver, bone, skin, and blood. A pronounced accumulation occurred in the bone. There was a marked reduction of 63Ni in the lung, skin, liver, and blood after i.p. CBMIDA. CONCLUSION The CBMIDA markedly raised the survival rate of nickel-poisoned mice and rats, and decreased 63Ni levels in lung and blood.
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Affiliation(s)
- X M Yan
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
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Gu SQ, Liang YY, Fan LR. [Regulation of traditional Chinese medicine formulae bailong on cAMP-PKA and DAG-PKC signal pathways of human gastric cancer cells]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1997; 17:404-7. [PMID: 10322859] [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: 02/12/2023]
Abstract
OBJECTIVE To evaluate the effects of traditional Chinese medicine formulae (Bailong) on cAMP/PKA and diacylaglycerol (DAG) protein kinase (PKC) pathways of the MGc80-3 cells. METHODS cAMP level, DAG content and activities of PKA and PKC were measured in different groups: (1) control, (2) 1.8 mg/ml Bailong, (3) 1.8 mg/ml Bailong +20 ug/ml PKA inhibitor, (4) 5 mumol/L PKC inhibitor. RESULTS When MGc80-3 cells were in treatment with Bailong for 3 hours, cAMP level and PKA activity were 11.27%, and 19.7% higher than that of the control, while DAG content and PKC activity were 47.0% and 64.2% lower than that of the control; When PKC pathway was blocked by PKC inhibitor GF-109203X, cAMP level and PKA activity were increased by 78.8% and 33.5% as against that of the control, while the DAG content and PKC activity were decreased by 40. 3% and 56.3% respectively. When MGc80-3cells were treated with Bailong, and at the same time, blocked PKA pathways by PKA inhibitor, cAMP level and PKA activity were decreased by 46.0% and 28.9%, on the other hand, DAG content and PKC activity were increased by 50.7% and 51.6% as against that of the Bailong group. CONCLUSIONS (1) There was relationship of causes and result between differentiation of MGc80-3 cells and the signal pathways. (2) Results of this study were similar to that of hexamethylenebisacetamide (HMBA). It is shown that the two signal systems are the foundation of regulative effects of Chinese medicine formulae Bailong or HMBA on proliferation and differentiation in MGc80-3 cells.
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Affiliation(s)
- S Q Gu
- Laboratory of Cell biology, Oncology School of Beijing Medical University
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Abstract
Actin, a highly conserved protein comprising cell stress fibers and other cellular structures, is found in both the cytoplasm and nucleus of cells and responds to both epigenetic signals and altered gene expression occurring during tumorigenesis. We have previously shown that changes in the cytoplasmic F- and G-actin ratios reflect bladder cancer risk. To determine whether nuclear actin is also altered and how nuclear and cytoplasmic actin alterations are interrelated in transformation, an in vitro model of carcinogen-induced transformation consisting of 2 human uroepithelial cell lines immortalized by infection with SV-40 was studied. One line, HUC-PC, is tumorigenic in nude mice after incubation with the carcinogen 4-ABP, the other, HUC-BC, is not. Cytoplasmic and nuclear F- and G-actin were determined by QFIA on individual cells using fluorochrome-labeled phallicidin and DNase, I, respectively. Before exposure to 4-ABP, the PC cells had lower cytoplasmic F-actin content, higher cytoplasmic G-actin content, but similar levels of nuclear G- and F-actin in comparison to the BC cells. After incubation with 4-ABP, F-actin decreased and G-actin increased in both cytoplasm and nuclei of PC cells and cytoplasmic F-actin fibers were lost, but only cytoplasmic actin was altered in the BC cells. Northern blot analysis showed the expression of the beta-actin gene was only approximately 20% lower in 4-ABP-treated PC cells than in untreated controls, indicating the cellular change in actin was attributed to a shift between F- and G-actin proteins rather than to net actin synthesis.
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Affiliation(s)
- J Y Rao
- Department of Urology, University of Oklahoma Health Sciences Center, Oklahoma City 73190, USA
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Wang DS, Liang YY, Peng J. [Co-regulative effect of PKA-RII and PKC-alpha kinase subspecies on expression of c-myc and c-H-ras in human gastric cancer cells (MGC 80-3)]. Shi Yan Sheng Wu Xue Bao 1996; 29:197-205. [PMID: 9639807] [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: 02/07/2023]
Abstract
Based on preceding experiment, we further studied the co-regulative effects of PKA-R II and PKC-alpha on expression of oncogenes in human gastric cell line MGC 80-3. The c-myc and c-H-ras expression were suppressed in MGC 80-3 cells during HMBA-induced differentiation. At the same time, PKA-R II showed nuclear translocation from cytoplasm, whereas the expression of PKC-alpha shifted from nucleus to cytoplasm. PKA inhibitor (Sigma) was added to block cAMP-PKA pathway when cell differentiation were induced by HMBA. The PKA-R II was still located in cytoplasm but expression of PKC-alpha translocated again into nucleus. Meanwhile, the c-myc and c-H-ras again expressed. This suggested that the changing regulation of oncogene expression were closely related to signalling from nuclear translocation of kinase subspecies. It thus shows the co-regulation effects of two signal system on oncogenes expression.
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Affiliation(s)
- D S Wang
- School of Oncology, Beijing Medical Unviersity, Beijing Institute for Cancer Research, Cell Biology Dept
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Chelly JE, Doursout MF, Lechevalier T, Liang YY, Chelly F, Hartley C, Kilbourn RG. Cardiac and regional hemodynamic interactions between halothane and nitric oxide synthase activity in dogs. Anesthesiology 1996; 85:142-9. [PMID: 8694360 DOI: 10.1097/00000542-199607000-00020] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND In vitro, halothane appears to affect the role played by nitric oxide in the regulation of vascular tone and cardiac function. In vivo, the results of the interactions between halothane and the nitric oxide pathway remain controversial. The authors investigated the effects of halothane on the cardiac and regional hemodynamic properties of N-methyl-L-arginine (NMA), a specific nitric oxide synthase inhibitor, in dogs. METHODS Twenty-five dogs were chronically instrumented. Aortic pressure, the first derivative of left ventricular pressure, cardiac output, heart rate, and carotid, coronary, mesenteric, hepatic, portal and renal blood flows were continuously recorded. N-methyl-L-arginine was infused intravenously at 20 mg/kg over 1 min in awake dogs (n = 11) and in 1.2% halothane-anesthetized dogs (n = 10). As a control group, the remaining four dogs were studied awake and during 1.2% halothane for 2 h in the absence of NMA. RESULTS In awake dogs, NMA produced a sustained pressor response (34%) and systemic vasoconstriction (40%) associated with a decrease in cardiac output (16%). Regional circulation changes included an immediate and transient increase in carotid (43%) and coronary (237%) blood flows and a subsequent decrease in carotid blood flow (25%). Hepatic and mesenteric blood flows also decreased, by 43% and 16%, respectively. Except for the coronary circulation, regional vascular resistance increased significantly. Halothane did not affect the pressor response to NMA but did blunt the cardiac output changes. Consequently, the systemic vasoconstriction after nitric oxide synthase inhibition was of shorter duration and of lesser magnitude during halothane anesthesia. Halothane also blunted the carotid, mesenteric, and renal vasoconstriction induced by NMA. Finally, in 1.2% halothane-anesthetized dogs, NMA induced a coronary vasoconstriction. CONCLUSIONS Halothane minimally interferes with the systemic and regional hemodynamic consequences of nitric oxide synthase blockade. The nature and magnitude of the interaction depend on the territory in which they occur.
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Affiliation(s)
- J E Chelly
- Department of Anesthesiology, University of Texas Health Science Center, Medical School at Houston 77030, USA
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