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Zhu B, Yang J, Dou J, Ning Y, Qi B, Li Y. Comparison of the physical stability, microstructure and protein-lipid co-oxidation of O/W emulsions stabilized by l-arginine/l-lysine-modified soy protein hydrolysate. Food Chem 2024; 447:138901. [PMID: 38458131 DOI: 10.1016/j.foodchem.2024.138901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/29/2024] [Accepted: 02/27/2024] [Indexed: 03/10/2024]
Abstract
This work investigated the physical stability, microstructure, and oxidative stability of the emulsions prepared by soy protein hydrolysate (SPH) after modification with different concentrations of l-arginine and l-lysine. l-Arginine and l-lysine significantly increased the absolute zeta potential values, and decreased droplet sizes of the emulsions, thereby improving the physical stability of the emulsions. Meanwhile, l-arginine and l-lysine markedly decreased the apparent viscosity of the emulsions. The measurement of interfacial protein adsorption percentage showed that l-arginine (≤0.5 %) promoted the adsorption of SPH at the oil-water interface, whereas l-lysine (≤1%) reduced the adsorption of SPH at the oil-water interface. In addition, l-arginine and l-lysine (≤0.5 %) could retard lipid and protein oxidation. Correlation analysis indicated that the improvement in the physical stability of the emulsions by l-arginine and l-lysine also enhanced the oxidative stability of the emulsions. In summary, l-arginine and l-lysine could be effective modifiers for the protein-based emulsion systems.
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Affiliation(s)
- Bin Zhu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Jinjie Yang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Jingjing Dou
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yijie Ning
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Baokun Qi
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
| | - Yang Li
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
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You CZ, Xu H, Zhao FS, Dou J. A Validation Study of CD133 as a Reliable Marker for Identification of Colorectal Cancer Stem-Like Cells. Bull Exp Biol Med 2024; 176:369-375. [PMID: 38340198 DOI: 10.1007/s10517-024-06026-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Indexed: 02/12/2024]
Abstract
Colorectal carcinoma (CRC) is maintained by putative colorectal cancer stem-like cells (CRC-CSCs) that are responsible for CRC metastasis and relapse. Targeting these CSCs can be an effective treatment of CRC. However, reliable identification of CRC-CSCs remains controversial due to the absence of specific markers. It is assumed that glycoprotein CD133 can serve as a useful marker for identification of CRC-CSCs. In this study, we employed CD133 as a marker to identify CRC-CSCs in human (LoVo, HCT116, and SW620) and mouse (CT26) CRC cell lines. In these lines, CD133+ cells were isolated and identified by magnetic-activated cell sorting and flow cytometry. Proliferation, colony formation, and drug resistance of CD133+ cells were analyzed in vitro, and their tumorigenicity was determined in vivo on mice. Proliferation, colony-forming ability, drug resistance, and tumorigenicity of CD133+ cells were higher than those of CD133- cells. Thus, cultured CD133+ cells had the characteristics of CSCs. Hence, glycoprotein CD133 is a reliable marker to identify CRC-CSCs. These results can be used for designing a novel therapeutic target in CRC treatment.
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Affiliation(s)
- C Z You
- Department of General Surgery, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - H Xu
- Departments of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing, China
| | - F S Zhao
- Departments of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing, China
| | - J Dou
- Departments of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing, China.
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Li D, Huang T, Zhang F, Zhang X, Dou J, Wang C, Guo S. Long-term efficacy and safety of different corticosteroid courses plus mycophenolate mofetil for autoimmune encephalitis with neuronal surface antibodies without tumor. Front Immunol 2023; 14:1195172. [PMID: 37503335 PMCID: PMC10369784 DOI: 10.3389/fimmu.2023.1195172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 06/22/2023] [Indexed: 07/29/2023] Open
Abstract
Objective To compare the efficacy and safety of different-course corticosteroids plus mycophenolate mofetil (MMF) as maintenance therapy in autoimmune encephalitis (AE) with neuronal surface antibodies (NSAbs) without tumor and explore the optimal course of corticosteroids. Methods Fifty-five patients with definite AE without tumor were enrolled consecutively between June 2015 and November 2020 and retrospectively divided three groups according to the course of treatment with corticosteroid, i.e., a group of patients with a course of 3-6 months (Group 3-6mo), 6-12 months (Group 6-12mo), and >12 months (Group >12mo). Demographic data, clinical manifestation and ancillary tests results were recorded. The dosage and courses of corticosteroid treatment, the recovery of neurological function, the occurrence of adverse effects, and relapses were followed up. Results A total of 55 patients were included in the final analysis. The numbers of patients in Group 3-6 mo, Group 6-12 mo, and Group >12 mo was 14, 17, and 24, respectively. A significantly higher proportion of patients in Group >12 mo showed a decreased level of consciousness at the onset (12, 50%) than in Group 3-6 mo and Group 6-12 mo (2,14.3%; 3, 17.6%) (p = 0.033). The incidence of MRI abnormalities was significantly higher in Group 6-12 mo and Group >12 mo (10, 58.8%; 16, 66.7%) than in Group 3-6 mo (3, 21.4%) (P=0.023). Ordinal regression analysis indicated that decreased level of consciousness was associated with the course of corticosteroid (OR=3.838, 95% CI: 1.103-13.323, P=0.035). No significant difference was observed between the three groups regarding the cumulative dose of corticosteroids administered during the first three months of long-term treatment (P>0.05). Additionally, no significant difference in the cumulative dosage of corticosteroids was found between patients in Group 6-12 months and Group >12 months during the first 6 months after beginning long-term treatment. The mRS scores of the three groups were not statistically significant before and after first-line treatment or at the last follow-up. Bonferroni multiple comparison test indicated that the mRS scores of patients in Group 6-12 months and Group >12 months were not statistically significant at 3 months and 12 months after the start of long-term treatment. During the follow-up, 50 (90.9%) patients achieved satisfactory neurological function (mRS score ≤2). Five patients (9.1%) experienced a first relapse and 2 of them were overlapped with both anti-NMDA receptor and glial antibodies. The incidence of adverse effects was significantly higher in Group >12 mo (17, 70.8%) than in Group 3-6 mo (3, 21.4%) and Group 6-12 mo (5, 29.4%) (P=0.003). Conclusions The beneficial effects of oral corticosteroid treatment may do not persist beyond 12 months and may even contribute to an increased incidence of adverse effects. In order to optimize the effectiveness and safety of treatment, we recommend a corticosteroid course of 3-12 months. Patients with reduced levels of consciousness may be more inclined to choose longer courses of corticosteroids for long-term treatment. Patients with an "overlapping syndrome" may require more intense immunotherapy to prevent relapse.
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Affiliation(s)
- Dong Li
- Department of Neurology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Teng Huang
- Department of Neurology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
- Department of Neurology, Shandong Second Provincial General Hospital, Jinan, Shandong, China
| | - Fangyuan Zhang
- Department of Neurology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Xiaoyu Zhang
- Department of Neurology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Jingjing Dou
- Department of Neurology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Chunjuan Wang
- Department of Neurology, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Shougang Guo
- Department of Neurology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
- Department of Neurology, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
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Yang J, Zhu B, Lu K, Dou J, Ning Y, Wang H, Li Y, Qi B, Jiang L. Construction and characterization of Pickering emulsions stabilized by soy protein hydrolysate microgel particles and quercetin-loaded performance in vitro digestion. Food Res Int 2023; 169:112844. [PMID: 37254418 DOI: 10.1016/j.foodres.2023.112844] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 03/09/2023] [Revised: 04/01/2023] [Accepted: 04/12/2023] [Indexed: 06/01/2023]
Abstract
Food-grade Pickering emulsions stabilized by protein microgel particles have received increasing attentions owing to their potential applications in the food industry. Herein, soy protein hydrolysate microgel particles (SPHMs) produced at various pH (3, 5, 7, and 9) with and without ultrasonication were used to stabilize Pickering emulsions. Compared with those prepared using ultrasonication at pH 3-7, SPHMs prepared using ultrasonication at pH 9 showed excellent amphiphility at the oil-water interface and a superior ability to reduce interfacial tension. The Pickering emulsion stabilized by the latter SPHMs displayed a small particle size and a high net charge on the droplet surface, formed a dense honeycomb network interfacial layer with high viscoelasticity and adsorbed protein content, and experienced no visually detectable creaming during storage for 21 days, i.e., exhibited optimum colloidal stability. Furthermore, the above emulsion featured a quercetin encapsulation efficiency of 89.45 % and was capable of sustainable release, achieving a low free fatty acid release efficiency of 61 % and a relatively high quercetin bioaccessibility of 65 % in in vitro simulated digestion experiments. Thus, this work inspires the use of SPHMs in emulsion-based functional foods.
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Affiliation(s)
- Jinjie Yang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Bin Zhu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Keyang Lu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Jingjing Dou
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yijie Ning
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Huan Wang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yang Li
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Baokun Qi
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
| | - Lianzhou Jiang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
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Xi B, Li X, Zhang J, Liu Y, Liu Z, Wang K, Dou J, Jin C. Phosphorus-Doped PdSn Nanocatalyst with Abundant Defective Atoms for Enhanced Methanol Oxidation. ACS Appl Mater Interfaces 2023. [PMID: 37319110 DOI: 10.1021/acsami.3c05079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The design of the nanostructure of palladium-based nanocatalysts is considered to be a very effective way to improve the performance of nanocatalysts. Recent studies have shown that multiphase nanostructures can increase the active sites of palladium catalysts, thus effectively improving the catalytic efficiency of palladium atoms. However, it is difficult to regulate the phase structure of Pd nanocatalysts to form a compound phase structure. In this work, PdSnP nanocatalysts with different compositions were synthesized by fine-regulating the doping amount of phosphorus atoms. The results show that the doping of phosphorus atoms not only changes the composition of PdSn nanocatalysts but also changes the microstructure, forming amorphous and crystalline multiphase structures. This multiphase nanostructure contains abundant interfacial defects, which effectively promotes the electrocatalytic oxidation efficiency of Pd atoms in small-molecule alcohols. Compared with the undoped PdSn nanocatalyst (480 mA mgPd-1 and 2.28 mA cm-2) and the commercial Pd/C catalyst (397 mA mgPd-1 and 1.15 mA cm-2), the mass (1746 mA mgPd-1) and specific activities (8.56 mA cm-2) of PdSn0.38P0.05 nanocatalysts in the methanol oxidation reaction were increased by 3.6 and 3.8 times and 4.4 and 7.4 times, respectively. This study provides a new synthesis strategy for the design and synthesis of efficient palladium-based nanocatalysts for the oxidation of small-molecule alcohols.
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Affiliation(s)
- Bo Xi
- Shaanxi Key Laboratory of Optoelectronic Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, Shaanxi 710021, China
| | - Xiang Li
- Shaanxi Key Laboratory of Optoelectronic Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, Shaanxi 710021, China
| | - Junjun Zhang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China
| | - Yaming Liu
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an, Shanxi 710048, China
| | - Zewei Liu
- Shaanxi Key Laboratory of Optoelectronic Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, Shaanxi 710021, China
| | - Ke Wang
- Shaanxi Key Laboratory of Optoelectronic Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, Shaanxi 710021, China
| | - Jingjing Dou
- Shaanxi Key Laboratory of Optoelectronic Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, Shaanxi 710021, China
| | - Changqing Jin
- Shaanxi Key Laboratory of Optoelectronic Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, Shaanxi 710021, China
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Yang J, Dou J, Zhu B, Ning Y, Wang H, Huang Y, Li Y, Qi B, Jiang L. Multi-dimensional analysis of heat-induced soybean protein hydrolysate gels subjected to ultrasound-assisted pH pretreatment. Ultrason Sonochem 2023; 95:106403. [PMID: 37060712 PMCID: PMC10139986 DOI: 10.1016/j.ultsonch.2023.106403] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/09/2023] [Accepted: 04/08/2023] [Indexed: 05/31/2023]
Abstract
This study aimed to evaluate the gelation characteristics of soybean protein hydrolysate (SPH) extracted by enzyme-assisted aqueous extraction. Specifically, the changes in gelation behaviors for heat-induced (95 °C, 20 min) SPH dispersions treated with pH (pH 3, 5, 9; pH 7 as control) and ultrasound (U; 240 W, 30 min) were investigated. The results showed that typical gel behavior with high elastic nature in the viscoelasticity and network structures were observed during the heating process, where the disulfide bond played a dominant role in the gel network formation of all the samples. Notably, the heat-induced aggregation in the SPH gels was mainly formed by the association of the basic B polypeptide in 11S and β subunit in 7S. The most superior SPH gel was formed at pH 7 when assisted by ultrasonication during the heating process. This as-synthesized gel showed a uniform filamentous structure and exhibited the more excellent textural, rheological and thermal properties than those of the samples formed under acidic and alkaline conditions. These results are of great value in revealing the gelation mechanism of SPH.
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Affiliation(s)
- Jinjie Yang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Jingjing Dou
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Bin Zhu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yijie Ning
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Huan Wang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yuyang Huang
- College of Food Engineering, Harbin University of Commerce, Harbin, Heilongjiang 150030, China
| | - Yang Li
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Baokun Qi
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
| | - Lianzhou Jiang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
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Yang J, Zhu B, Dou J, Li X, Tian T, Tong X, Wang H, Huang Y, Li Y, Qi B, Jiang L. Structural characterization of soy protein hydrolysates and their transglutaminase-induced gelation properties. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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Li X, Zhang J, Dou J, Li M, Feng X, Liu G. Precisely Tuning the Surface Nanostructure of Ni@Pd Nanocatalysts for Enhanced Formic Acid Oxidation. ChemCatChem 2022. [DOI: 10.1002/cctc.202200599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiang Li
- Xi'an Technological University school of materials science and chemicial engineering Xuefu Road, Xi’an, Shaanxi Province, 710021, P. R. China 710021 Xi'an CHINA
| | - Junjun Zhang
- Xi'an Technological University School of Materials Science and Chemical Engineering CHINA
| | - Jingjing Dou
- Xi'an Technological University School of Materials Science and Chemical Engineering CHINA
| | - Mengyang Li
- Xi'an Technological University School of Materials Science and Chemical Engineering CHINA
| | - Xiaohua Feng
- Xi'an Technological University School of Materials Science and Chemical Engineering CHINA
| | - Ge Liu
- Xi'an Technological University School of Materials Science and Chemical Engineering CHINA
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Li B, Pang S, Dou J, Zhou C, Shen B, Zhou Y. The inhibitory effect of LINC00261 upregulation on the pancreatic cancer EMT process is mediated by KLF13 via the mTOR signaling pathway. Clin Transl Oncol 2022; 24:1059-1072. [PMID: 35066757 DOI: 10.1007/s12094-021-02747-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 11/30/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE The long noncoding RNA LINC00261 was reported to be involved in carcinogenesis and has been validated as a tumor suppressor in pancreatic cancer (PC); however, how LINC00261 is regulated has not been fully examined. Here, we attempted to investigate the upstream and downstream targets of LINC00261 in PC. METHODS LINC00261 expression in PC tissues was examined by the Gene Expression Omnibus (GEO) datasets and the Gene Expression Profiling Interactive Analysis (GEPIA) database. The quantitative reverse transcription polymerase chain reaction (qRT-PCR) assays were performed to detect the expression level of LINC00261 in PC cells. The location of LINC00261 in PC cells was identified by RNA fluorescence in situ hybridization (RNA-FISH). Cell Counting Kit-8 (CCK-8), cell apoptosis assay, transwell invasion and migration assays testified the critical role of LINC00261 in PC. The luciferase reporter assay was applied to confirm the binding of LINC00261 to its upstream transcription factor KLF13. The changes in LINC00261 related target protein levels were analyzed by Western blotting assay. RESULTS LINC00261 was significantly lower in PC tissues and was mainly concentrated in the nucleus. Overexpression of LINC00261 inhibited the invasion and migration of PC cells. Mechanistically, transcription factor KLF13 was confirmed to inhibit the epithelial-mesenchymal transition (EMT) process of PC cells by promoting the transcription of LINC00261 and suppressing the expression of metastasis-associated proteins, such as matrix metalloproteinase MMP2 and vimentin, thus inhibiting the metastasis of PC. CONCLUSION LINC00261 regulates PC cell metastasis through the "KLF13-LINC00261-mTOR-P70S6K1-S6" signaling pathway, which provides a significant set of potential PC therapeutic targets.
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Affiliation(s)
- B Li
- School of Life Science and Technology, China Pharmaceutical University, Jiangsu, 211198, P.R. China
| | - S Pang
- School of Life Science and Technology, China Pharmaceutical University, Jiangsu, 211198, P.R. China
| | - J Dou
- School of Life Science and Technology, China Pharmaceutical University, Jiangsu, 211198, P.R. China
| | - C Zhou
- School of Life Science and Technology, China Pharmaceutical University, Jiangsu, 211198, P.R. China
| | - B Shen
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, P.R. China.
- Institute of Translational Medicine, State Key Laboratory of Oncogenes and Related Genes, Shanghai Jiaotong University, Shanghai, 200025, P.R. China.
| | - Y Zhou
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, P.R. China.
- Institute of Translational Medicine, State Key Laboratory of Oncogenes and Related Genes, Shanghai Jiaotong University, Shanghai, 200025, P.R. China.
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Su DW, Li X, Chen J, Dou J, Fang GE, Luo CJ. MiR-543 inhibits proliferation and metastasis of human colorectal cancer cells by targeting PLAS3. Eur Rev Med Pharmacol Sci 2021; 24:8812-8821. [PMID: 32964969 DOI: 10.26355/eurrev_202009_22820] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Colorectal cancer (CRC) has a very high morbidity and mortality worldwide. Related studies have shown that microRNA-543 (miR-543) is involved in the development of many cancers, including CRC. The purpose of this study was to explore the potential molecular mechanism of miR-543's involvement in the development of CRC. PATIENTS AND METHODS QRT-PCR and Western blot were used to detect the expression of proliferation and migration-related proteins, signal transduction and transcriptional activator 3 and protein inhibitor of activated signal transducer and activators of transcription 3 (PIAS3). Cell proliferation and metastasis were measured by MTT, transwell and Western blot. The binding sites of miR-543 and PIAS3 were predicted by TargetScan database and verified by double-luciferase report experiment. RESULTS The expression of miR-543 was high in CRC tissues and cell lines, while the mRNA and protein levels of PIAS3 were decreased. Meanwhile, a negative correlation between miR-543 and PIAS3 was also observed in CRC tissues. Moreover, the downregulation of miR-543 led to the inhibition of viability and the expression of proliferation and migration related proteins. Subsequently, miR-543 depletion also blocked cell migration and invasion. MiR-543 inhibits the expression of PISA3. Furthermore, downregulation of PIAS3 undermined the miR-543 depletion-mediated suppression effect on SW480 and LOVO cells. Notably, loss of miR-543 downregulated STAT3 activity, which was rescued by PIAS3 ablation. CONCLUSIONS MiR-543 participated in cell proliferation and metastasis by targeting PIAS3 in CRC.
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Affiliation(s)
- D-W Su
- Department of General Surgery, Changhai Hospital, Navy Military Medical University of PLA, Shanghai, China.
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Shi R, Dou J, Liu J, Sammad A, Luo H, Wang Y, Guo G, Wang Y. Genetic parameters of hair cortisol as an indicator of chronic stress under different environments in Holstein cows. J Dairy Sci 2021; 104:6985-6999. [PMID: 33773780 DOI: 10.3168/jds.2019-17856] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 02/09/2021] [Indexed: 11/19/2022]
Abstract
Chronic stress is a risk factor for a variety of physiological disorders because of its increased activation of the hypothalamic-pituitary-adrenal (HPA) axis; however, it is difficult to reveal environmental and genetic effects contributing to long-term HPA activity because of the complexity of chronic stress. The hair cortisol concentration (HCC) can be used to reflect the accumulation of HPA axis activity over time. Some studies suggest that the HCC might be associated with the protein concentration (PC) in the hair shaft; however, no studies have revealed a dynamic relationship between them. In the present study, 1,086 hair samples from 418 Holstein cows were collected, and the effects of environmental factors on HCC, PC, and ratio of HCC to PC (HCCP) were studied. Subsequently, regression analysis and curve fitting were used to identify for better-performing indicators of chronic stress. Additionally, univariate and bivariate genetic evaluation were used to estimate the genetic components of cortisol traits and genotype by environment interactions (G × E) under different environmental and physiological states. The results showed that HCC and PC are significantly affected by hair color, sampling year, and season, whereas HCCP is not influenced by hair color. Adjusted PC and HCCP, where confounding effects are excluded, were moderately related with chronic stress indicators. Moderate to high heritabilities were obtained for HCC (0.347 and 0.390 for winter and summer, respectively), PC (0.402 and 0.495 for winter and summer, respectively) and HCCP (0.289 and 0.460 for winter and summer, respectively) when animals in the same season were evaluated. A moderate G × E interaction was detected in this study, as indicated by the low or negative genetic correlation for the same cortisol trait in different environments (e.g. heat stress condition and thermoneutral condition). In conclusion, HCCP is not affected by hair color compared with the other 2 traits; thus, it has potential as an indicator of chronic stress. Hair cortisol traits could monitor stress response process in cattle, as well as provide a better understanding of genetic mechanism for long-term HPA activity.
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Affiliation(s)
- R Shi
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - J Dou
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - J Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - A Sammad
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - H Luo
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yajing Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - G Guo
- Beijing Sunlon Livestock Development Co. Ltd., Beijing 100176, China
| | - Yachun Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
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Luo H, Brito LF, Li X, Su G, Dou J, Xu W, Yan X, Zhang H, Guo G, Liu L, Wang Y. Genetic parameters for rectal temperature, respiration rate, and drooling score in Holstein cattle and their relationships with various fertility, production, body conformation, and health traits. J Dairy Sci 2021; 104:4390-4403. [PMID: 33685707 DOI: 10.3168/jds.2020-19192] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [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: 06/30/2020] [Accepted: 11/03/2020] [Indexed: 12/12/2022]
Abstract
Genetic selection for improved climatic resilience is paramount to increase the long-term sustainability of high-producing dairy cattle, especially in face of climate change. Various physiological indicators, such as rectal temperature (RT), respiration rate score (RR), and drooling score (DS), can be used to genetically identify animals with more effective coping mechanisms in response to heat stress events. In this study, we investigated genetic parameters for RT, RR (score from 1-3), and DS (score from 1-3). Furthermore, we assessed the genetic relationship among these indicators and other economically important traits for the dairy cattle industry. After data editing, 59,265 (RT), 30,290 (RR), and 30,421 (DS) records from 13,592 lactating Holstein cows were used for the analyses. Variance components were estimated based on a multiple-trait repeatability animal model. The heritability ± standard error estimate for RT, RR, and DS was 0.06 ± 0.01, 0.04 ± 0.01, and 0.02 ± 0.01, respectively, whereas their repeatability was 0.19, 0.14, and 0.14, respectively. Moderate genetic correlations of RR with RT and DS (0.26 ± 0.11 and 0.25 ± 0.16) and nonsignificant correlation between RT and DS (-0.11 ± 0.14) were observed. Furthermore, the approximate genetic correlations between RT, RR, and DS with 12 production, 29 conformation, 5 fertility and reproduction, 5 health, and 9 longevity-indicator traits were assessed. In general, the approximate genetic correlations calculated were low to moderate. In summary, 3 physiological indicators of heat stress response were measured in a large number of animals and shown to be lowly heritable. There is a value in developing a selection index including all the 3 indicators to improve heat tolerance in dairy cattle. All the unfavorable genetic relationships observed between heat tolerance and other economically important traits can be accounted for in a selection index to enable improved climatic resilience while also maintaining or increasing productivity in Holstein cattle.
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Affiliation(s)
- H Luo
- Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture of China, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, 100193, Beijing, China
| | - Luiz F Brito
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907
| | - X Li
- Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture of China, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, 100193, Beijing, China
| | - G Su
- Center for Quantitative Genetics and Genomics, Department of Molecular Biology and Genetics, Aarhus University, Tjele 8830, Denmark
| | - J Dou
- Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture of China, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, 100193, Beijing, China
| | - W Xu
- Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture of China, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, 100193, Beijing, China
| | - X Yan
- Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture of China, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, 100193, Beijing, China
| | - H Zhang
- Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture of China, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, 100193, Beijing, China
| | - G Guo
- Beijing Sunlon Livestock Development Co. Ltd., 100029, Beijing, China
| | - L Liu
- Beijing Dairy Cattle Center, 100192, Beijing, China
| | - Y Wang
- Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture of China, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, 100193, Beijing, China.
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Dou J, Qin Q, Tu Z. Multi-Modal Image Registration Based on Local Self-Similarity and Bidirectional Matching. Pattern Recognit Image Anal 2021. [DOI: 10.1134/s1054661820040112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Qin Q, Dou J, Tu Z. Deep ResNet Based Remote Sensing Image Super-Resolution Reconstruction in Discrete Wavelet Domain. Pattern Recognit Image Anal 2020. [DOI: 10.1134/s1054661820030232] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Abstract
In the present study, a method for screening non-aflatoxigenic Aspergillus flavus in soil samples collected from major peanut-growing regions of China was developed. The single colonies were picked and cultured on Aspergillus flavus and parasiticus agar (AFPA). If the reverse side of the colony on AFPA was orange-coloured, it was considered A. flavus or Aspergillus parasiticus. After the genomic DNA of each strain was extracted, 28S rRNA and calmodulin were amplified and sequenced to determine the species. The key gene, aflR, was amplified and digested via polymerase chain reaction-restriction fragment length polymorphism. The aflatoxigenic A. flavus and the non-aflatoxigenic A. flavus and A. parasiticus were distinguished by enzyme digestion of aflR. 156 strains of A. flavus were screened, which consisted of 135 aflatoxigenic and 21 non-aflatoxigenic strains. The aflatoxin producing ability of each strain was confirmed using solid-state fermentation experiments. Using the method developed in the present study, we confirmed that the non-aflatoxigenic A. flavus strains isolated lost their capacity to produce aflatoxins. Considering there could be some alterations in other functional genes, some non-aflatoxigenic strains could be identified inaccurately as aflatoxigenic strains, although that did not occur in the present study. The growth of non-aflatoxigenic A. flavus was observed, and the most rapidly growing non-aflatoxigenic strain was selected for plate confrontation assays and toxic mixed culture experiments. The inhibition rate of non-aflatoxigenic A. flavus against aflatoxigenic A. flavus was 55.4 and 72.6% in potato dextrose agar (PDA) plate and natural soybean medium, respectively. The screened non-aflatoxigenic A. flavus strains provide a microbial resource for biological control of aflatoxin contamination.
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Affiliation(s)
- W. Zhang
- Department of Biological and Agricultural Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130022, China P.R
- Academy of National Food and Strategic Reserves Administration P.R.C, No.11 Baiwanzhuang Avenue, Xicheng District, Beijing 100037, China P.R
| | - X. Chang
- Academy of National Food and Strategic Reserves Administration P.R.C, No.11 Baiwanzhuang Avenue, Xicheng District, Beijing 100037, China P.R
| | - Z. Wu
- Department of Biological and Agricultural Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130022, China P.R
| | - J. Dou
- Department of Biological and Agricultural Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130022, China P.R
| | - Y. Yin
- Academy of National Food and Strategic Reserves Administration P.R.C, No.11 Baiwanzhuang Avenue, Xicheng District, Beijing 100037, China P.R
| | - C. Sun
- Academy of National Food and Strategic Reserves Administration P.R.C, No.11 Baiwanzhuang Avenue, Xicheng District, Beijing 100037, China P.R
| | - W. Wu
- Department of Biological and Agricultural Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130022, China P.R
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Zhong G, Xu S, Liu L, Zheng CZ, Dou J, Wang F, Fu X, Liao W, Wang H. Cover Feature: Effect of Experimental Operations on the Limiting Current Density of Oxygen Reduction Reaction Evaluated by Rotating‐Disk Electrode (ChemElectroChem 5/2020). ChemElectroChem 2020. [DOI: 10.1002/celc.202000127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Guoyu Zhong
- Engineering Research Center of None-food Biomass Efficient Pyrolysis and Utilization Technology of Guangdong Higher Education InstitutesDongguan University of Technology Dongguan China 523808
| | - Shurui Xu
- Engineering Research Center of None-food Biomass Efficient Pyrolysis and Utilization Technology of Guangdong Higher Education InstitutesDongguan University of Technology Dongguan China 523808
| | - Lei Liu
- Engineering Research Center of None-food Biomass Efficient Pyrolysis and Utilization Technology of Guangdong Higher Education InstitutesDongguan University of Technology Dongguan China 523808
| | - Cheng Zhi Zheng
- Phychemi (Hong Kong) Company Limited, Hollywood Plaza 610 Nathan Road, Mongkok Kowloon, Hong Kong China 999077
| | - Jingjing Dou
- Engineering Research Center of None-food Biomass Efficient Pyrolysis and Utilization Technology of Guangdong Higher Education InstitutesDongguan University of Technology Dongguan China 523808
| | - Fengye Wang
- Engineering Research Center of None-food Biomass Efficient Pyrolysis and Utilization Technology of Guangdong Higher Education InstitutesDongguan University of Technology Dongguan China 523808
| | - Xiaobo Fu
- Engineering Research Center of None-food Biomass Efficient Pyrolysis and Utilization Technology of Guangdong Higher Education InstitutesDongguan University of Technology Dongguan China 523808
| | - Wenbo Liao
- Engineering Research Center of None-food Biomass Efficient Pyrolysis and Utilization Technology of Guangdong Higher Education InstitutesDongguan University of Technology Dongguan China 523808
| | - Hongjuan Wang
- School of Chemistry and Chemical Engineering Key Laboratory of Fuel Cell Technology of Guangdong ProvinceSouth China University of Technology Guangzhou China 510640
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Bakulski KM, Dou J, Lin N, London SJ, Colacino JA. DNA methylation signature of smoking in lung cancer is enriched for exposure signatures in newborn and adult blood. Sci Rep 2019; 9:4576. [PMID: 30872662 PMCID: PMC6418160 DOI: 10.1038/s41598-019-40963-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 02/21/2019] [Indexed: 12/20/2022] Open
Abstract
Smoking impacts DNA methylation genome-wide in blood of newborns from maternal smoking during pregnancy and adults from personal smoking. We compared smoking-related DNA methylation in lung adenocarcinoma (61 never smokers, 91 current smokers, and 238 former smokers) quantified with the Illumina450k BeadArray in The Cancer Genome Atlas with published large consortium meta-analyses of newborn and adult blood. We assessed whether CpG sites related to smoking in blood from newborns and adults were enriched in the lung adenocarcinoma methylation signal. Testing CpGs differentially methylated by smoke exposure, we identified 296 in lung adenocarcinoma meeting a P < 10-4 cutoff, while previous meta-analyses identified 3,042 in newborn blood, and 8,898 in adult blood meeting the same P < 10-4 cutoff. Lung signals were highly enriched for those seen in newborn (24 overlapping CpGs, Penrichment = 1.2 × 10-18) and adult blood (66 overlapping CpGs, Penrichment = 1.2 × 10-48). The 105 genes annotated to CpGs differentially methylated in lung tumors, but not blood, were enriched for RNA processing ontologies. Some epigenetic alterations associated with cigarette smoke exposure are tissue specific, but others are common across tissues. These findings support the value of blood-based methylation biomarkers for assessing exposure effects in target tissues.
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Affiliation(s)
- K M Bakulski
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA.
| | - J Dou
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA
| | - N Lin
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA
| | - S J London
- National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
| | - J A Colacino
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA
- Department of Nutritional Sciences, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA
- Center for Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan, USA
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Liu C, Dou J, Sheng Y, Wu J, Hu W, Li Y, Lin Y, Tao H, Tang X, Du X, Yu C. Abstract P1-02-10: Early stage breast cancer screening using an emerging novel liquid biopsy screening technology. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p1-02-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: An emerging novel liquid biopsy technology called Cancer Differentiation Analysis (CDA) has been evaluated as a viable early stage breast cancer screening tool. CDA technology is a blood-sample based, multi-level, multi-parameter diagnostic method which detects signals from both protein, cellular, and to some extent, molecular levels, in which multiple aspects of information can be collected to improve diagnostic accuracy, even for early stage of cancer. Improving capability to screen breast cancer is an important on-going research effort, as breast cancer represents a leading cancer with high incidence rate.
Methods: In this single-blind study, 22 breast cancer patients and 25 healthy individuals were recruited at Changhai Hospital of Shanghai. Histopathological examination results of breast cancer patients were collected, 22 cases were diagnosed as infiltrating ductal carcinoma of breast, of which 10 patients were stage I breast cancer. 25 individuals were confirmed healthy after physical examinations. Peripheral blood was drawn in EDTA tubes For CDA tests. CDA data of 22 breast cancer patients and 25 healthy individuals were conducted using SPSS, and the results were shown in the table below.
Results: The average CDA of breast cancer, stageIbreast cancer, and controls were 43.20, 44.17 and 36.17 (rel. units) respectively as shown in Table 1. Both breast cancer and stage I breast cancer could be significantly distinguished from the control (p = 0.000, p = 0.001, respectively). For stage I breast cancer vs. control group, Area under ROC curve was 0.876, sensitivity and specificity were both 80.0% (Table 2). In contrast to traditional breast cancer screening methodologies which have relatively low sensitivity and high false positives for stage I detection, often with radiation side effects and high costs, advantages of CDA technology include ability to detect early stage cancer with relatively high sensitivity and specificity, and it is also highly cost effective without side effects.
Conclusions: Initial results showed that CDA technology could effectively distinguish stageIbreast cancer from healthy individuals, CDA could be a potential candidate for breast cancer screening.
Table 1Summary of CDA test resultsGroupSample SizeAge RangeAge MeanAge MedianCDA Mean (rel. units)CDA Median (rel. units)CDA STDEVControl2523 - 67413735.6336.176.98Breast Cancer2239 - 78545343.2042.304.18Stage I Breast Cancer1043 - 78595944.1743.254.29Stage II Breast Cancer839 - 55474941.2840.303.06Stage III Breast Cancer255555542.2042.202.12Stage IV Breast Cancer251 - 64585847.0047.007.78
Table 2AUC, Sensitivity and Specificity of Control vs. Stage I breast cancerStage I Breast Cancer vs. ControlArea Under the CurveSensitivitySpecificity 0.87680.0%80.0%
Citation Format: Liu C, Dou J, Sheng Y, Wu J, Hu W, Li Y, Lin Y, Tao H, Tang X, Du X, Yu C. Early stage breast cancer screening using an emerging novel liquid biopsy screening technology [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-02-10.
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Affiliation(s)
- C Liu
- Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Bio-Medical Science Co., Ltd., Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - J Dou
- Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Bio-Medical Science Co., Ltd., Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - Y Sheng
- Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Bio-Medical Science Co., Ltd., Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - J Wu
- Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Bio-Medical Science Co., Ltd., Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - W Hu
- Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Bio-Medical Science Co., Ltd., Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - Y Li
- Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Bio-Medical Science Co., Ltd., Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - Y Lin
- Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Bio-Medical Science Co., Ltd., Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - H Tao
- Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Bio-Medical Science Co., Ltd., Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - X Tang
- Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Bio-Medical Science Co., Ltd., Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - X Du
- Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Bio-Medical Science Co., Ltd., Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - C Yu
- Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Bio-Medical Science Co., Ltd., Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
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Tao H, Lin Y, Liu C, Dou J, Sheng Y, Wu J, Hu W, Li Y, Tang X, Yu C, Du X. Abstract P1-02-09: CDA screening technology for multi-ethnic group, early stage breast cancer screening. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p1-02-09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Breast cancer is the second leading cause of death from cancer in American women. Current breast cancer screening technologies have issues with poor sensitivity for early stage breast cancer, high false positives, radiation side effects, etc. Cancer Differentiation Analysis (CDA) technology is a blood-sample based, multi-level, multi-parameter diagnostic method which detects signals from both proteins, cells, and to some extent, molecular level, in which multiple aspects of information are collected to improve diagnostic accuracy. CDA technology has been investigated as a viable clinical utility in breast cancer screening, particularly for early stage breast screening with clear advantages (both whole blood and serum can be used, ability to detect early, easy, simple, no side effects, and high degree of sensitivity and specificity).
Methods: In this study, the human subjects involved are Caucasians, with serum samples of 44 pathologically confirmed breast cancer patients and 34 healthy individuals from 3 blood bank centers in the USA, of which 40 cases were stageIbreast cancer, 2 cases were stageII, and the other 2 cases were stage III breast cancer. CDA data of 44 breast cancer patients and 34 healthy individuals were collected in US lab and analyzed using SPSS, and the results were shown in the table below. Results from the above study was compared with a clinical study on Asian group with data collected in lab in China using CDA technology.
Results: The average CDA value of all breast cancer and stageIbreast cancer samples, and controls were 45.99, 45.76 and 42.36 (rel. units) respectively (see Table 1). Both breast cancer and stageIbreast cancer could be significantly distinguished from the control group (p < 0.001) (Table 2). For stageIbreast cancer vs. control group, Area under ROC curve was 0.727, sensitivity and specificity were 62.5% and 82.4% respectively, which is higher than a typical mammogram. To compare with different ethnic groups, data collected on an Asian group is also shown in Table 2, which showed that overall, AUC, sensitivity and specificity are comparable (some difference may be attributed to sample type difference (whole blood vs. serum)) for early stage breast cancer patients for those two ethnic groups, demonstrating that CDA technology can be extended to multiple ethnic groups.
Conclusions: CDA screening can be extended to different ethnic group including Caucasian and Asian with good sensitivity and specificity for stageIbreast cancer.
We thank Ugur Basmaci, Sunsil Pandit and Sharon Vorse-Yu for their support.
Table 1Summary of CDA Test ResultsGroupSample SizeAge RangeAge MeanAge MedianCDA Mean (rel. units)CDA Median (rel. units)CDA STDEVControl3436 -79575742.3642.652.75Breast Cancer4436 – 77606145.9946.504.22Stage I Breast Cancer4036 – 77606145.7645.554.26Stage II Breast Cancer251 – 64585847.0547.054.88Stage III Breast Cancer262 – 75696949.5049.502.55
Table 2AUC, Sensitivity and Specificity of Control vs. Stage I Breast CancerStage I Breast Cancer vs. ControlArea Under the CurveSensitivitySpecificityCaucasian (Stage I)0.72762.5%82.4%Asian# (Stage I)0.87680.0%80.0%# Whole blood samples. 10 stage I breast cancer samples and 25 control samples
Citation Format: Tao H, Lin Y, Liu C, Dou J, Sheng Y, Wu J, Hu W, Li Y, Tang X, Yu C, Du X. CDA screening technology for multi-ethnic group, early stage breast cancer screening [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-02-09.
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Affiliation(s)
- H Tao
- Anpac Bio-Medical Science Co., Ltd, Shanghai, China; Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - Y Lin
- Anpac Bio-Medical Science Co., Ltd, Shanghai, China; Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - C Liu
- Anpac Bio-Medical Science Co., Ltd, Shanghai, China; Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - J Dou
- Anpac Bio-Medical Science Co., Ltd, Shanghai, China; Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - Y Sheng
- Anpac Bio-Medical Science Co., Ltd, Shanghai, China; Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - J Wu
- Anpac Bio-Medical Science Co., Ltd, Shanghai, China; Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - W Hu
- Anpac Bio-Medical Science Co., Ltd, Shanghai, China; Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - Y Li
- Anpac Bio-Medical Science Co., Ltd, Shanghai, China; Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - X Tang
- Anpac Bio-Medical Science Co., Ltd, Shanghai, China; Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - C Yu
- Anpac Bio-Medical Science Co., Ltd, Shanghai, China; Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
| | - X Du
- Anpac Bio-Medical Science Co., Ltd, Shanghai, China; Changhai Hospital, Naval Medical University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China; Anpac Technology USA Co., Ltd., San Jose, CA
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Wang Y, Gu Y, Fang K, Mao K, Dou J, Fan H, Zhou C, Wang H. Lactobacillus acidophilus and Clostridium butyricum ameliorate colitis in murine by strengthening the gut barrier function and decreasing inflammatory factors. Benef Microbes 2018; 9:775-787. [PMID: 30014710 DOI: 10.3920/bm2017.0035] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Ulcerative colitis is a type of chronic inflammation present in the intestines for which the aetiology is not yet clear. The current therapies for ulcerative colitis cannot be considered to be long-term management strategies due to their significant side effects. Therefore, it is essential to identify an alternative therapeutic strategy for ulcerative colitis. The present study focused on the evaluation of the anti-inflammatory activities of Lactobacillus acidophilus CGMCC 7282 and Clostridium butyricum CGMCC 7281. The roles of both single and combination of L. acidophilus CGMCC 7282 and C. butyricum CGMCC 7281 in ulcerative colitis were investigated in 2,4,6-trinitrobenzenesulfonic acid-induced acute colitis (Th1-type colitis) in Sprague-Dawley rats and oxazolone-induced chronic colitis (Th2-type colitis) in BALB/c mice. The in vivo studies showed that the administration of L. acidophilus CGMCC 7282, C. butyricum CGMCC 7281 and L. acidophilus CGMCC 7282 plus C. butyricum CGMCC 7281 could reduce the Th1-type colitis as well as the Th2-type colitis, and the combination of the two strains exhibited the most notable effects, as indicated by the reduced mortality rates, the suppressed disease activity indices, the improved body weights, the reduced colon weight/colon length and colon weight/body weight ratios, and the improved gross anatomic characteristics and histological features (ameliorations of neutrophil infiltration and ulceration in the colon). It was found that the alterations of the gut microbiome, the barrier function changing and the selected inflammation-related cytokines are observed in the ulcerative colitis rats/mice treated with L. acidophilus CGMCC 7282 and C. butyricum CGMCC 7281. The combination of L. acidophilus CGMCC 7282 plus C. butyricum CGMCC 7281 also exerted a stronger anti-inflammatory effect than either of the single strains alone in vitro. These findings provide evidence that the administration of L. acidophilus CGMCC 7282 plus C. butyricum CGMCC 7281 may be a promising therapy for ulcerative colitis.
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Affiliation(s)
- Y Wang
- 1 Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV Groningen, the Netherlands
| | - Y Gu
- 2 State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, Jiangsu 210009, China P.R
| | - K Fang
- 2 State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, Jiangsu 210009, China P.R
| | - K Mao
- 2 State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, Jiangsu 210009, China P.R
| | - J Dou
- 2 State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, Jiangsu 210009, China P.R
| | - H Fan
- 2 State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, Jiangsu 210009, China P.R
| | - C Zhou
- 2 State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, Jiangsu 210009, China P.R
| | - H Wang
- 2 State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, Jiangsu 210009, China P.R
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21
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Li D, Yu J, Han Z, Cheng Z, Liu F, Dou J, Liang P. Risk factors of haemoglobinuria after microwave ablation of liver tumours. Clin Radiol 2018; 73:982.e9-982.e15. [PMID: 30029835 DOI: 10.1016/j.crad.2018.06.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 06/08/2018] [Indexed: 02/07/2023]
Abstract
AIM To explore the risk factors predicting haemoglobinuria after ultrasound-guided percutaneous microwave ablation (MWA) of liver tumours and discuss the treatments and outcomes. MATERIALS AND METHODS The present study comprised 2,829 patients admitted for liver tumours treated with MWA from Jan 2011 to April 2017. Ethics committee approval was waived and informed consent for treatment procedures were obtained from the patients. Haemoglobinuria after MWA was found in 149 patients. The influence of 19 risk factors was assessed. Binary logistic regression and receiver operating characteristic (ROC) curve analysis were used for statistical analysis. The treatments and outcomes of patients with haemoglobinuria were summarised. RESULTS By univariate analysis, histopathology, liver cirrhosis, MWA volume, MWA energy, and MWA duration were significant risk factors. By multivariate analysis and ROC curve, MWA energy, duration, and volume were identified as predictors of haemoglobinuria after MWA. Drug treatments including kidney protection, adequate hydration, alkalisation of urine, and diuresis were administrated to the patients with haemoglobinuria. One patient progressed to acute kidney injury (AKI) while others had good clinical outcomes. CONCLUSION Haemoglobinuria is a controllable side effect after MWA of liver tumours, which is related to high MWA energy, long MWA duration, and great MWA volume. It usually caused few side effects on renal function with correct treatment.
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Affiliation(s)
- D Li
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, 100853, China; Department of Hepatobiliary Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, 050000, China
| | - J Yu
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, 100853, China
| | - Z Han
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, 100853, China
| | - Z Cheng
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, 100853, China
| | - F Liu
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, 100853, China
| | - J Dou
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, 100853, China
| | - P Liang
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, 100853, China.
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22
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Dou J, Zhang L, Xie X, Ye L, Yang C, Wen L, Shen C, Zhu C, Zhao S, Zhu Z, Liang B, Wang Z, Li H, Fan X, Liu S, Yin X, Zheng X, Sun L, Yang S, Cui Y, Zhou F, Zhang X. Integrative analyses reveal biological pathways and key genes in psoriasis. Br J Dermatol 2017; 177:1349-1357. [PMID: 28542811 DOI: 10.1111/bjd.15682] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2017] [Indexed: 12/25/2022]
Abstract
BACKGROUND Psoriasis is a complex disease influenced by both genetic and environmental factors with abnormal gene expression in lesional skin. However, no studies are available on genome-scale gene expression of psoriatic lesions in the Chinese population. In addition, systematic studies on the biological pathways, pathogenicity and interaction networks of psoriasis-related genes with abnormal expression profiles require further investigation. OBJECTIVES To further explore the associated pathways in psoriasis by functional analysis and to identify the key genes by gene pathogenicity analysis. METHODS We performed RNA sequencing on 60 skin biopsy samples from patients with psoriasis and healthy controls to identify the primary differentially expressed genes in psoriatic lesional skin. We retrieved all reported psoriasis-associated genes and performed integrative analyses covering gene expression profiling, pathway analysis, gene pathogenicities and protein-protein interaction networks. RESULTS We found that internal and external stimuli may activate immunoinflammatory responses to promote the development of psoriasis. Pathways associated with infectious diseases and cancers were identified by functional and pathway analyses. The gene pathogenicity analysis revealed five key genes in psoriasis: PPARD, GATA3, TIMP3, WNT5A and PTTG1. CONCLUSIONS Our analyses showed that genes contributed to the pathogenesis of psoriasis by activating risk pathways with components abnormality in expression. We identified five potentially pathogenic genes for psoriasis that may serve as important biomarkers for the diagnosis and treatment.
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Affiliation(s)
- J Dou
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - L Zhang
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - X Xie
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - L Ye
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - C Yang
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - L Wen
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - C Shen
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - C Zhu
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - S Zhao
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - Z Zhu
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - B Liang
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - Z Wang
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - H Li
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - X Fan
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - S Liu
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - X Yin
- Department of Genetics, and Renaissance Computing Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC, U.S.A
| | - X Zheng
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - L Sun
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - S Yang
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - Y Cui
- Department of Dermatology, China-Japan Friendship Hospital, Beijing, China
| | - F Zhou
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
| | - X Zhang
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China
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23
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Wang X, Dou J, Fan F, Jia J, Yang Y, Li H, Li J, Zhang Y, Huo Y. PM322 Fasting Glucose Independent of 2-Hour Glucose in Oral Glucose Tolerance Test Predicts Chronic Kidney Disease Progression in a Chinese Community-Based Population Without Chronic Kidney Disease at Baseline. Glob Heart 2016. [DOI: 10.1016/j.gheart.2016.03.438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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24
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Cai X, Fang Z, Dou J, Yu A, Zhai G. Bioavailability of quercetin: problems and promises. Curr Med Chem 2013; 20:2572-82. [PMID: 23514412 DOI: 10.2174/09298673113209990120] [Citation(s) in RCA: 233] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Revised: 01/24/2013] [Accepted: 03/08/2013] [Indexed: 12/15/2022]
Abstract
Quercetin (QC) is a typical plant flavonoid, possesses diverse pharmacologic effects including antiinflammatory, antioxidant, anti-cancer, anti-anaphylaxis effects and against aging. However, the application of QC in pharmaceutical field is limited due to its poor solubility, low bioavailability, poor permeability and instability. To improve the bioavailability of QC, numerous approaches have been undertaken, involving the use of promising drug delivery systems such as inclusion complexes, liposomes, nanoparticles or micelles, which appear to provide higher solubility and bioavailability. Enhanced bioavailability of QC in the near future is likely to bring this product to the forefront of therapeutic agents for treatment of human disease.
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Affiliation(s)
- X Cai
- Department of Pharmaceutics, College of Pharmacy, Shandong University, Jinan 250012, China
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25
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Dou J, He XF, Cao WH, Zhao FS, Wang XY, Liu YR, Wang J. Overexpression of microRna-200c in CD44+CD133+ CSCS inhibits the cellular migratory and invasion as well as tumorigenicity in mice. Cell Mol Biol (Noisy-le-grand) 2013; Suppl 59:OL1861-OL1868. [PMID: 24120113] [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] [Received: 08/14/2013] [Accepted: 09/14/2013] [Indexed: 06/02/2023]
Abstract
Cancer stem cells (CSCs) are believed to be responsible for drug resistance, metastasis of tumors. To investigate the biological characteristics of CD44+CD133+CSCs with over- expressing microRNA-200c (miR-200c), and to provide evidences for miR-200c as a tumor suppressor to treat melanoma. CD44+CD133+CSCs were isolated from the mouse melanoma B16F10 cell line by using immune magnetic activated cell sorting. The lentivirus miR-200c was transduced into the cells, and the effect of miR-200c overexpression on the biological characteristics of B16F10 CD44+ CD133+CSCs was analyzed by a series assays. The stable overexpression of miR-200c in B16F10 CD44+CD133+CSCs obviously resulted in downregulation of zinc-finger E-box binding homeobox 1 expression, reduction of the cell proliferation, colony forming, cell migratory and invasion ability in vitro as well as tumorigenicity in vivo compared with those of the B16F10 cells and B16F10 non-CD44+ CD133+CSCs. These findings suggest that the miR-200c overexpression as a novel strategy to target therapy of melanoma CSCs.
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Affiliation(s)
- J Dou
- Medical School, Southeast University Department of Pathogenic Biology and Immunology Nanjing China njdoujun@yahoo.com.cn
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26
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He X, Wang J, Zhao F, Chen D, Chen J, Zhang H, Yang C, Liu Y, Dou J. ESAT-6-gpi DNA vaccine augmented the specific antitumour efficacy induced by the tumour vaccine B16F10-ESAT-6-gpi/IL-21 in a mouse model. Scand J Immunol 2013; 78:69-78. [PMID: 23679337 DOI: 10.1111/sji.12074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2013] [Accepted: 03/03/2013] [Indexed: 12/30/2022]
Abstract
In this study, we hypothesized that the mice immunized with the glycosylphosphatidylinositol (GPI) anchored 6-kDa early-secreted antigenic target (ESAT-6) DNA vaccine (ESAT-6-gpi) and the tumour vaccine B16F10-ESAT-6-gpi/IL-21 might significantly enhance immune responses and antimelanoma efficacy. Our experimental results indicated that the anti-ESAT-6 antibody induced by the DNA vaccine ESAT-6-gpi bound ESAT-6 to the surface of tumour vaccine to activate a complement classical pathway and resulted in the B16F10 tumour cell lysis and apoptosis, which served as a potential trigger for breaking melanomatous immune tolerance to elicit an initiation of natural antimelanoma immunity. Our innovative approach of using the DNA vaccine ESAT-6-gpi priming and the tumour vaccine B16F10-ESAT-6-gpi/IL-21 boosting induced strong antimelanoma immunity that inhibited melanomatous growth. These findings highlighted the DNA vaccine ESAT-6-gpi as an immune enhancer to augment the immune efficacy of the tumour vaccine B16F10-ESAT -6-gpi/IL-21 against melanoma in a mouse model.
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Affiliation(s)
- X He
- Department of Pathogenic Biology and Immunology, Medical School, Southeast University, Nanjing, China
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27
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Zang L, Xue B, Lu Z, Li X, Yang G, Guo Q, Ba J, Zou X, Dou J, Lu J, Pan C, Mu Y. Identification of LRP16 as a negative regulator of insulin action and adipogenesis in 3T3-L1 adipocytes. Horm Metab Res 2013; 45:349-58. [PMID: 23389992 DOI: 10.1055/s-0032-1331215] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Leukemia related protein 16 (LRP16) was first cloned from acute myeloid leukemia cells in our laboratory. In the present study, we sought to investigate the role of LRP16 in insulin action and sensitivity, using LRP16-depleted and -overexpressing 3T3-L1 cells. LRP16 silencing resulted in a reduction of the expression and secretion of tumor necrosis factor-alpha (TNF-α) and a concomitant increase in the expression of peroxisome proliferator-activated receptor-gamma (PPAR-γ). Moreover, LRP16 depletion promoted insulin-induced glucose uptake and adipocyte differentiation of 3T3-L1 cells. In contrast, LRP16 overexpression increased TNF-α secretion, suppressed glucose uptake, and attenuated 3T3-L1 cell differentiation. The phosphorylation levels of insulin receptor substrate 1 (IRS-1), phosphatidylinositide 3-kinase (PI3-K), and Akt were increased in LRP16-deficient 3T3-L1 cells, and conversely, diminished in LRP16-overexpressing 3T3-L1 cells, when compared to the corresponding control cells. Additionally, LRP16 overexpression raised the phosphorylation level of mammalian target of rapamycin (mTOR). The pretreatment with rapamycin, a specific inhibitor of mTOR, prevented the TNF-α elevation and PPAR-γ reduction and restored the phosphorylation of IRS-1, PI3-K, and Akt in LRP16-overexpressing cells. Our data collectively indicate that LRP16 acts as a negative regulator of insulin action and adipogenesis in 3T3-L1 adipocytes, which involves the activation of the mTOR signaling pathway.
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Affiliation(s)
- L Zang
- Department of Endocrinology, Chinese PLA General Hospital, Beijing, China
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28
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Wang J, Cao MG, You CZ, Wang CL, Liu SL, Kai C, Dou J. A preliminary investigation of the relationship between circulating tumor cells and cancer stem cells in patients with breast cancer. Cell Mol Biol (Noisy-le-grand) 2012; 58 Suppl:OL1641-OL1645. [PMID: 22340707] [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] [Received: 12/30/2011] [Accepted: 02/03/2012] [Indexed: 05/31/2023]
Abstract
In this study, we explored the relationship between the circulating tumor cells (CTC) and the CTC-cancer stem cells (CSC) in the patients with breast cancer. The magnetic-activated cell separation (MACS) method and flow cytometry (FCM) for selection of epithelial cells from the peripheral blood mononuclear cells (PBMC) were used to analyze the enriched epithelial cells that were labeled with anti-cytokeratin(CK)-fluorescein isothiocyanate, anti-CD44-phycoerythrin (PE) and anti-CD24-PE, respectively. The CK+ cells were attributed to CTC and the CK+CD44+ CD24-/low cells were thought as to CTC-CSC in 26 breast cancer patients, respectively. Our results showed the CK+ tumor cells were detected in 19 of 26 patients, with the CK+ tumor cells varying from 0.11% to 5.42 %. The CTC-CSC were identified in 18 of the 19 patients with CTC and the percentage of CTC-CSC in CTC was 19.01%. The results yet suggested the breast cancer patients with high-rate CK+ tumor cells were at the advanced tumor node metastases (TNM) stage III, and the patients with low-rate CK+ cells were at the modest TNM stage I. The difference between the two groups was statistically significant (p<0.001). We concluded that there is a significant relationship between CTC and CTC-CSC, but not among TNM stages, in breast cancer metastasis.
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Affiliation(s)
- J Wang
- Department of Gynecology & Obstetrics, Zhongda Hospital, Southeast University, Medical School, Nanjing, China
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29
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Dou J, Wang Y, Yu F, Yang H, Wang J, He X, Xu W, Chen J, Hu K. Protection against Mycobacterium tuberculosis challenge in mice by DNA vaccine Ag85A-ESAT-6-IL-21 priming and BCG boosting. Int J Immunogenet 2011; 39:183-90. [DOI: 10.1111/j.1744-313x.2011.01066.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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30
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Wang J, Zhou D, He X, Wang Y, Hu W, Jiang L, Dou J. Effect of downregulated β-catenin on cell proliferative activity, the sensitivity to chemotherapy drug and tumorigenicity of ovarian cancer cells. Cell Mol Biol (Noisy-le-grand) 2011; 57 Suppl:OL1606-OL1613. [PMID: 22000491] [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] [Received: 08/27/2011] [Accepted: 10/03/2011] [Indexed: 05/31/2023]
Abstract
The role of Wnt/β-catenin signaling pathway in the etiology and/or progression of ovarian cancer has been well documented. It was demonstrated that ovarian cancer constantly exhibit constitutive activation of canonical Wnt signaling, usually as a result of oncogenic mutations that stabilize and dysregulate the β-catenin protein. In this study, we transfected an expression vector-based small hairpin RNA (shRNA) targeting to β-catenin encoding gene into human A2780 ovarian cancer cells to investigate the effects of β-catenin knockdown on biological characteristics of ovarian cancer cells. The results showed that β-catenin shRNA expression resulted in decreased β-catenin mRNA and protein expression in the transfected A2780 cells, inhibition of cellular proliferation, decreased capability of clonogenicity in the plating and the soft agar, and increased sensitivities to chemotherapy drugs vincristine, paclitaxel and cisplatin compared to untransfected cells. Importantly, we found that shRNA-mediated knockdown of β-catenin strongly decreases tumour growth of human A2780 ovarian cancer cells in xenografts. These results demonstrate that β-catenin might be an effective therapeutic target for human ovarian cancer treatment.
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Affiliation(s)
- J Wang
- Department of Gynecology & Obstetrics, Zhongda Hospital, Medical School, Southeast University, Nanjing, 210009, PR China
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31
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Miao J, Nie Y, Chen H, Wang D, Enders M, Siebert W, Sun G, Dou J. Synthesis and Characterization of the nido-Platinaborane 7,7-(PPh3)2-7-PtB10H11-11-OC(O)Me. Z Naturforsch B 2011. [DOI: 10.5560/znb.2011.66b0387] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wang J, Zhao F, Dou J, He XF, Chu L, Cao M, Liu C, Li Y, Gu N. Immunotherapy of melanoma by GPI-anchored IL-21 tumour vaccine involves down-regulating regulatory T cells in mouse model. Int J Immunogenet 2010; 38:21-9. [PMID: 20727044 DOI: 10.1111/j.1744-313x.2010.00962.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
In this study, we developed a tumour cell vaccine expressing a glycosylphosphatidylinositol (GPI)-anchored IL-21 to test the effect of immunotherapy of melanoma in mouse model. The results indicated that the tumour vaccine was functional, exhibiting delayed tumour growth and prolonging longevity of tumour bearing mice. The immunotherapeutic effect was associated with decreasing the numbers of CD4(+) CD25(+) Foxp3(+) Treg (Tregs) cells, increasing IFN-γ level and promoting lymphocyte-infiltration in tumour tissues. Overall, our data demonstrate that the GPI-anchored IL-21 tumour vaccine regulates immune responses at least in part by down-regulating Tregs and reveals enhanced efficacy of tumour vaccine therapy of melanoma.
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Affiliation(s)
- J Wang
- Department of Gynecology & Obstetrics, Zhongda Hospital, Southeast University, Nanjing, China
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33
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Dou J, Li Y, Zhao F, Hu W, Wen P, Tang Q, Chu L, Wang Y, Cao M, Jiang C, Gu N. Identification of tumor stem-like cells in a mouse myeloma cell line. Cell Mol Biol (Noisy-le-grand) 2009; 55 Suppl:OL1151-OL1160. [PMID: 19656468] [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] [Received: 11/20/2008] [Accepted: 06/15/2009] [Indexed: 05/28/2023]
Abstract
We used colony formation assay in the soft agar media or the serum-free media, the methods of identifying BrdU-label-retaining cells and the SP cells as well as the tumorigenicity test in BALB/c mice, respectively, to analyze tumor stem like cells in the SP2/0 cell line. The results showed that a few SP2/0 cells were capable of forming colonies in the soft agar media, contained BrdU-label-immortal strand in the SP2/0 cell line. The SP2/0 cells in the serum-free media gained higher tumorigenicity in the BALB/c mice than the SP2/0 cells cultivated in the complete media did. Overall, only a few of the SP2/0 cells were found to possess the characteristics of tumor stem-like cells, such as high proliferative potency, more self-renewal and stronger tumorigenesis, or greater similarity to the tumor stem cells (TSCs) traits. The biology of tumor stem-like cells contributes to the identification of molecular targets important for future tumor therapy.
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Affiliation(s)
- J Dou
- Southeast University Department of Pathogenic Biology and Immunology; School of Basic Medical Science, Nanjing, China.
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Affiliation(s)
- J Dou
- Department of Pharmacognosy
| | | | | | - D K Goins
- National Center for the Development of Natural Products4, School of Pharmacy, University of Mississippi, University, MS 38677, USA
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35
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Mata-Greenwood E, Daeuble JF, Grieco PA, Dou J, McChesney JD, Mehta RG, Kinghorn AD, Pezzuto JM. Novel esters of glaucarubolone as inducers of terminal differentiation of promyelocytic HL-60 cells and inhibitors of 7,12-dimethylbenz[a]anthracene-induced preneoplastic lesion formation in mouse mammary organ culture. J Nat Prod 2001; 64:1509-1513. [PMID: 11754601 DOI: 10.1021/np010212p] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In an effort to discover new chemotherapeutic/chemopreventive agents from natural sources, brusatol (1) was found to induce HL-60 cellular differentiation, accompanied by strong antiproliferative and cytotoxic effects. A series of natural and semisynthetic quassinoids (1-48) was designed to effect both antiproliferative and differentiation-inducing properties. Compounds were assessed in vitro using the HL-60 promyelocytic cell model. Changes in activity due to structural modification of the core structure glaucarubolone (24) were consistent with activities reported in other cell systems. However, the following were novel SAR findings: (1) semisynthetic analogues with a hydroxylated ring at the beta-position of the ester side chain at C-15 were able to induce cellular differentiation at concentrations lower than those inducing cell growth arrest, and (2) quassinoids inhibiting DNA synthesis with greater efficacy than reducing cellular viability possessed alkyl substitutions at the alpha-position of the C-15 ester side chain. Analogues from this latter group and brusatol (1) and bruceantin (2) inhibited dimethylbenz(a)anthracene-induced preneoplastic lesion formation in a mouse mammary organ culture. The novel finding of 1 and glaucarubolone analogues as potent inducers of differentiation leads to potential novel applications in the field of cancer.
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MESH Headings
- 9,10-Dimethyl-1,2-benzanthracene/antagonists & inhibitors
- Animals
- Anticarcinogenic Agents/pharmacology
- Antineoplastic Agents, Phytogenic/chemical synthesis
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/pharmacology
- Cell Differentiation/drug effects
- Cell Division/drug effects
- Cell Membrane/drug effects
- DNA/drug effects
- DNA/metabolism
- Drug Screening Assays, Antitumor
- Female
- Glaucarubin/analogs & derivatives
- Glaucarubin/chemical synthesis
- Glaucarubin/chemistry
- Glaucarubin/pharmacology
- Glycosylation
- HL-60 Cells/drug effects
- Humans
- Inhibitory Concentration 50
- Mammary Neoplasms, Animal/chemically induced
- Mice
- Mice, Inbred BALB C
- Models, Biological
- Molecular Structure
- Nitroblue Tetrazolium/pharmacology
- Organ Culture Techniques
- Plants, Medicinal/chemistry
- Quassins
- Rats
- Simaroubaceae/chemistry
- Structure-Activity Relationship
- Time Factors
- Tumor Cells, Cultured/drug effects
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Affiliation(s)
- E Mata-Greenwood
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, USA
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Dou J, Liu K, Chen Z, Wo J, He N, Liu Y, Zhang M, Wang X, Xu C. Effect of immunization in mice with recombinant DNA encoding the hepatitis C virus structural protein. Chin Med J (Engl) 1999; 112:1036-9. [PMID: 11721468] [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: 02/22/2023] Open
Abstract
OBJECTIVE To explore the possibility and the efficacy of immune responses in mice inoculated with recombinant plasmid pCD-HCV1 and to lay a foundation for HCV nucleic acid vaccine development in the future. METHODS The gene fragment coding C and E regions of HCV-II (type I b) was inserted into pCD-SR alpha 1 expression vector and formed pCD-HCV1 and then was injected into quadriceps muscles of Balb/c mouse. Serum anti-HCV level of mice was tested by ELISA (A value). Spleen cells proliferation responses to HCV antigens were detected by 3H-TdR incorporation (cpm). RESULTS Balb/c mice immunized with recombinant plasmid pCD-HCV1 three or four times can generate specific antibody responses to HCV antigens and the antibody levels gradually ascend to the plateaus and did not have the trend of descending in 18 weeks detected. The serum antibodies in mice immunized by recombinant plasmid pCD-HCV1 were 100 percent positive when the serum were diluted 40 times and the positive rate of antibody still were 16.6 percent positive when the serum were diluted 320 times. Balb/c mice immunized with recombinant plasmid pCD-HCV1 (100 micrograms, 50 micrograms 10 micrograms/mouse three times respectively) can elicit antibody responses to HCV antigens and the antibody levels of three groups were 0.70 +/- 0.07, 0.33 +/- 0.04 and 0.11 +/- 0.09 respectively. Spleen cells of Blab/c mice injected with pCD-HCV1 three times were induced to produce proliferation responses to HCVc + e specific antigens. CONCLUSIONS These results demonstrated that constructs expressioning HCV core and envelope proteins can generate anti-HCVc + e specific antibody responses and lymphoproliferation responses in mice, which suggested it to be possible to elicit immune responses to viral epitopes from HCV via DNA immunization with HCV-DNA recombinant and to warrant further investigation as a potential vaccine against HCV infections.
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Affiliation(s)
- J Dou
- Department of Microbiology, Nanjing Railway Medical College, Nanjing 210009, China
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Dou J, Liu K, Chen Z, Wo J, Liu Y, Xu C, Chen M, Jin J, He N. [Experimental study of immunization of mice with hepatitis C virus genetic vaccine constructs]. Zhonghua Nei Ke Za Zhi 1999; 38:390-2. [PMID: 11798674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To inquire into the immune responses to expression protein in mice immunized with genetic vaccine of hepatitis C virus (HCV) and lay a foundation for HCV genetic vaccine development in future. METHODS The gene fragments coding C and most E regions of HCV-II type were inserted into pCD-SRalpha(1) of eukaryotic expression vector and formed genetic vaccine constructs of pCD-HCV(1) and then was injected into the quadriceps muscles of Balb/c mice. The serum anti-HCV level of mice was tested by ELISA and peripheral blood mononuclear cell (PBMC) proliferative responses to HCV antigens were detected by (3)H-TdR incorporation method (cpm). RESULTS The serum antibody level reached to 0.71 +/- 0.08 - 0.77 +/- 0.06 (A value, the same below) after genetic vaccine pCD-HCV(1) (100 microg/mouse) were inoculated into the mice (n = 12) three or four times while blank vector pCD-SRalpha(1) could not induce the mice (n = 8) to generate antibody response in same way. After the antibody levels in mice (n = 8) immunized by pCD-HCV(1) had ascended to peak value (0.71), there was no trend of descending during the following 18 weeks of detection (0.68 +/- 0.06 - 0.75 +/- 0.07). Specific fragment of HCV cDNA identified by polymerase chain reaction (PCR) from DNA extracted from the muscles of the mice after pCD-HCV(1) had been inoculated three months. PBMC proliferative responses to HCV synthetic peptides CP(9) and gene recombinant antigens C, E(1) in the mice immunized with pCD-HCV(1) were detected and its stimulation indexes (SI) were 4.07 +/- 1.58, 3.88 +/- 0.70 and 3.69 +/- 1.13 respectively and there was a significant difference (P < 0.001) as compared with that of PBMC in mice immunized with pCD-SRalpha(1). CONCLUSION These investigations demonstrated that genetic vaccine constructs made of HCV structural region can induce Balb/c mice to generate antibody and PBMC proliferative responses to HCV antigens via DNA immunization.
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Affiliation(s)
- J Dou
- Institute of Infectious Disease, The First Affiliated Hospital of Zhejiang University, Hangzhou 310003
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Nakai S, Wang ZH, Dou J, Nakamura S, Ogawa M, Nakai E, Vanderstoep J. Gas chromatography/principal component similarity system for detection of E. coli and S. aureus contaminating salmon and hamburger. J Agric Food Chem 1999; 47:576-583. [PMID: 10563935 DOI: 10.1021/jf980750g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Coho, Atlantic, Spring, and Sockeye salmon and five commercial samples of hamburger patties were analyzed by processing gas chromatography (GC) data of volatile compounds using the principal component similarity (PCS) technique. PCS scattergrams of the samples inoculated with Escherichia coli and Staphylococcus aureus followed by incubation showed the pattern-shift lines moving away from the data point for uninoculated, unincubated reference samples in different directions with increasing incubation time. When the PCS scattergrams were drawn for samples incubated overnight, the samples inoculated with the two bacterial species and the uninoculated samples appeared as three separated groups. This GC/PCS approach has the potential to ensure quality of samples by discriminating good samples from potentially spoiled samples. The latter may require further microbial assays to identify the bacteria species potentially contaminating foods.
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Affiliation(s)
- S Nakai
- Department of Food Science, The University of British Columbia, Vancouver, Canada.
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Dou J, Yu S, Bian C. [Clinical analysis of 19 patients with pleural mesothelioma]. Zhonghua Zhong Liu Za Zhi 1998; 20:387-8. [PMID: 10921040] [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: 02/17/2023]
Abstract
OBJECTIVE To summarize the experience in the diagnosis of pleural mesothelioma. METHODS Analysing the clinical data of 19 patients with pleural mesothelioma, including age, history of exposure to asbestos, clinical manifestations, imaging and laboratory examinations and metastases. RESULTS None of the 19 patients had history of exposure to asbestos. Eight cases(42.1%) had no obvious thoracodynia, 9 cases(47.4%) had pleural effusion limited to the right chest, and in 2 cases(10.5%) the brachialis plexus was involved, and in 1 case (5.3%) malignant mesothelial cells were detected in the pleural effusion. Pleural thickening or nodules were found in 13 cases on CT and in 9 cases by B ultrasonographic examination. CONCLUSION Exposure to asbestos is not the only cause of pleural mesothelioma. Chest pain is not always associated with pleural mesothelioma. CT and B ultrasonography are of good help in the diagnosis of pleural mesothelioma.
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Affiliation(s)
- J Dou
- Department of Respiratory Medicine, Shandong Provincial Hospital, Jinan
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Abstract
A new quassinoid, 11-O-trans-p-coumaroyl amarolide (1) was isolated from Castela texana, and the structure was elucidated by spectroscopic analysis. Compound 1 is the first coumaroyl quassinoid derivative to have been isolated from nature. The known compounds amarolide (2), chaparrinone, chaparrin, glaucarubolone, holacanthone, and 15-O-beta-D-glucopyranosyl glaucarubol were also isolated. All isolated compounds were tested for their cytotoxicity and antiprotozoal activities.
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Affiliation(s)
- J Dou
- Department of Pharmacognosy, Research Institute of Pharmaceutical Sciences, University of Mississippi, University 38677, USA
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Dou J. [Immunologic parameters used in antitumor study of traditional Chinese medicine]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1992; 12:239-40. [PMID: 1498546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Dou J, Wu MY. [Effect of si jun zi tang on the macrophage cytotoxic activity in mice]. Zhong Xi Yi Jie He Za Zhi 1990; 10:612-3, 582. [PMID: 2268922] [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: 12/31/2022]
Abstract
The effect of Si Jun Zi Tang (SJZT) on the activities of peritoneal macrophage (M phi) mediated MTC and ADCC in normal and immunosuppressed mice were examined by isotope releasing assay (51Cr, 125I-UdR). The results showed the SJZT no significantly increased peritoneal M phi-mediated cytotoxic activity (MTC, ADCC) in normal mice. After the injection of immuno-depressive cyclophosphamide (Cy) alone (ip), the cytotoxic activities were decreased, but by treatment with Cy and SJZT, the cytotoxic activities were significantly increased compared with Cy group, the enhancing rates amounted to 74.40% (M phi-MTC) and 121.03% (M phi-ADCC) respectively. It was demonstrated that the SJZT could protest against the effect that the Cy inhibited the activities of MTC and ADCC of peritoneal M phi in mice, but there was no significant effect on normal mice. It indicated that the function of SJZT's immunoregulation was related to the state of immune in body.
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Affiliation(s)
- J Dou
- Dept. of Microbiology, Wannan Medical College, Wuhu
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