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Du Y, Gu J, Yang Y, Chen Y, Wang Y, Mei Z, Li Y, Li L, Xue D, Wang X, Li D, Hu P, Nie W, Chu N. Efficacy and safety of bicyclol for treating patients with antituberculosis drug-induced liver injury. Int J Tuberc Lung Dis 2024; 28:6-12. [PMID: 38178298 DOI: 10.5588/ijtld.23.0038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024] Open
Abstract
BACKGROUND: Bicyclol was used for treating idiosyncratic acute drug-induced liver injury (DILI) in a phase II trial. This study was aimed at evaluating the efficacy and safety of bicyclol 25 and 50 mg thrice a day (TID) for treating acute DILI caused by anti-TB drugs in the light of the trial results.METHODS: We analysed clinical data of patients with TB drug-induced DILI in the trial database. The primary endpoint was reduction in serum alanine aminotransferase (ALT) levels after 4 weeks of treatment compared to baseline.RESULTS: Overall, 148 patients were included, with respectively 48, 52 and 48 patients included in the control (456 mg polyene phosphatidylcholine TID), high-dose (50 mg bicyclol TID) and low-dose (25 mg bicyclol TID) groups. ALT levels decreased by respectively â-"149.0 (IQR â-"299.3 to â-"98.3 (), â-"225.5 (IQR â-"309.3 to â-"181.8 ) and â-"242.5 (IQR â-"364.8 to â-"153.8) U/L in the control, high-dose and low-dose groups (P < 0.001). The ALT normalisation rates at weeks 1, 2, 4, 6 and 8 were higher in the high- and low-dose groups, while adverse events and serious adverse events were similar across groups.CONCLUSIONS: Bicyclol (25 and 50 mg TID) is effective and safe in treating anti-TB DILI, and bicyclol 50 mg TID showed higher efficacy.
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Affiliation(s)
- Y Du
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing
| | - J Gu
- Department of Tuberculosis, Shanghai Pulmonary Hospital, Shanghai
| | - Y Yang
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing
| | - Y Chen
- Department of Tuberculosis, Henan Infectious Diseases Hospital (The Sixth People's Hospital of Zhengzhou), Zhengzhou
| | - Y Wang
- Department of Tuberculosis, The First Affiliated Hospital of Xinxiang Medical University, Weihui
| | - Z Mei
- Department of Tuberculosis, Tianjin Haihe Hospital, Tianjin
| | - Y Li
- Department of Infectious Diseases, The Second Xiangya Hospital of Central South University, Changsha
| | - L Li
- Department of Infectious Disease, The First Affiliated Hospital of University of Science and Technology of China, Hefei
| | - D Xue
- Department of Infectious Diseases, Shanghai Putuo District Central Hospital, Shanghai
| | - X Wang
- Liver Disease Center of Naval 905 Hospital, Shanghai
| | - D Li
- Department of Hepatobiliary Disease, 900th hospital of PLA's Joint Logistics Support Force, Fuzhou
| | - P Hu
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - W Nie
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing
| | - N Chu
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing
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Schwartz M, Xue D, Collins D, Kauffman M, Dunbar M, Crowder K, Project DA, Ruple A. Big data from small animals: integrating multi-level environmental data into the Dog Aging Project. REV SCI TECH OIE 2023; 42:65-74. [PMID: 37232318 DOI: 10.20506/rst.42.3349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Environmental exposures can have large impacts on health outcomes. While many resources have been dedicated to understanding how humans are influenced by the environment, few efforts have been made to study the role of built and natural environmental features on animal health. The Dog Aging Project (DAP) is a longitudinal community science study of aging in companion dogs. Using a combination of owner-reported surveys and secondary sources linked through geocoded coordinates, DAP has captured home, yard and neighbourhood variables for over 40,000 dogs. The DAP environmental data set spans four domains: the physical and built environment; chemical environment and exposures; diet and exercise; and social environment and interactions. By combining biometric data, measures of cognitive function and behaviour, and medical records, DAP is attempting to use a big-data approach to transform the understanding of how the surrounding world affects the health of companion dogs. In this paper, the authors describe the data infrastructure developed to integrate and analyse multi-level environmental data that can be used to improve the understanding of canine co-morbidity and aging.
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Zhang L, Shi FY, Qin Q, Liu GX, Zhang HW, Yan J, Tan M, Wang LZ, Xue D, Hu CH, Zhang Z, She JJ. [Relationship between preoperative inflammatory indexes and prognosis of patients with rectal cancer and establishment of prognostic nomogram prediction model]. Zhonghua Zhong Liu Za Zhi 2022; 44:402-409. [PMID: 35615796 DOI: 10.3760/cma.j.cn112152-20200630-00612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Objective: To compare the prognostic evaluation value of preoperative neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), lymphocyte-to-monocyte ratio (LMR), and systemic immune-inflammation index (SII) in rectal cancer patients. Nomogram survival prediction model based on inflammatory markers was constructed. Methods: The clinical and survival data of 585 patients with rectal cancer who underwent radical resection in the First Affiliated Hospital of Xi'an Jiao tong University from January 2013 to December 2016 were retrospectively analyzed. The optimal cut-off values of NLR, PLR, LMR, and SII were determined by the receiver operating characteristic (ROC) curve. The relationship between different NLR, PLR, LMR and SII levels and the clinic pathological characteristics of the rectal cancer patients were compared. Cox proportional risk model was used for univariate and multivariate regression analysis. Nomogram prediction models of overall survival (OS) and disease-free survival (DFS) of patients with rectal cancer were established by the R Language software. The internal validation and accuracy of the nomograms were determined by the calculation of concordance index (C-index). Calibration curve was used to evaluate nomograms' efficiency. Results: The optimal cut-off values of preoperative NLR, PLR, LMR and SII of OS for rectal cancer patients were 2.44, 134.88, 4.70 and 354.18, respectively. There was statistically significant difference in tumor differentiation degree between the low NLR group and the high NLR group (P<0.05), and there were statistically significant differences in T stage, N stage, TNM stage, tumor differentiation degree and preoperative carcinoembryonic antigen (CEA) level between the low PLR group and the high PLR group (P<0.05). There was statistically significant difference in tumor differentiation degree between the low LMR group and the high LMR group (P<0.05), and there were statistically significant differences in T stage, N stage, TNM stage, tumor differentiation degree and preoperative CEA level between the low SII group and the high SII group (P<0.05). The multivariate Cox regression analysis showed that the age (HR=2.221, 95%CI: 1.526-3.231), TNM stage (Ⅲ grade: HR=4.425, 95%CI: 1.848-10.596), grade of differentiation (HR=1.630, 95%CI: 1.074-2.474), SII level (HR=2.949, 95%CI: 1.799-4.835), and postoperative chemoradiotherapy (HR=2.123, 95%CI: 1.506-2.992) were independent risk factors for the OS of patients with rectal cancer. The age (HR=2.107, 95%CI: 1.535-2.893), TNM stage (Ⅲ grade, HR=2.850, 95%CI: 1.430-5.680), grade of differentiation (HR=1.681, 95%CI: 1.150-2.457), SII level (HR=2.309, 95%CI: 1.546-3.447), and postoperative chemoradiotherapy (HR=1.837, 95%CI: 1.369-2.464) were independent risk factors of the DFS of patients with rectal cancer. According to the OS and DFS nomograms predict models of rectal cancer patients established by multivariate COX regression analysis, the C-index were 0.786 and 0.746, respectively. The calibration curve of the nomograms showed high consistence of predict and actual curves. Conclusions: Preoperative NLR, PLR, LMR and SII levels are all correlated with the prognosis of rectal cancer patients, and the SII level is an independent prognostic risk factor for patients with rectal cancer. Preoperative SII level can complement with the age, TNM stage, differentiation degree and postoperative adjuvant chemoradiotherapy to accurately predict the prognosis of rectal cancer patients, which can provide reference and help for clinical decision.
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Affiliation(s)
- L Zhang
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - F Y Shi
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Q Qin
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - G X Liu
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - H W Zhang
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - J Yan
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - M Tan
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - L Z Wang
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - D Xue
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - C H Hu
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Z Zhang
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - J J She
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
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Wang Y, Guo X, Fan X, Zhang H, Xue D, Pan Z. The protective effect of mangiferin on osteoarthritis: An in vitro and in vivo study. Physiol Res 2022; 71:135-145. [PMID: 35043648 PMCID: PMC8997682 DOI: 10.33549/physiolres.934747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 11/02/2021] [Indexed: 11/25/2022] Open
Abstract
Mangiferin is a kind of polyphenol chemical compound separated from these herbal medicines of Mangifera indica L., Anemarrhena asphodeloides Bge. and Belamcanda chinensis L., which has anti-inflammatory, anti-virus, and other physiological activities without toxic effects. Osteoarthritis (OA) is a chronic disease that is also a kind of arthritis disease in which articular cartilage or bones under the joint is damaged. In addition, artificial replacements are required in severe cases. At present, there are not too much researches on the potential biological activities of mangiferin that plays a protective role in the treatment of OA. In this study, we evaluated the protective effect of mangiferin on osteoarthritis (OA) in vitro and in vivo. First, the effect of different concentrations of mangiferin on rat chondrocytes was determined by MTT assay. Second, the effects of mangiferin on the expression levels of matrix metalloproteinase (MMP)-13, TNF alpha, Collagen II, Caspase-3, and cystatin-C in interleukin-1beta (IL-1beta)-induced rat chondrocytes were examined by the real-time polymerase chain reaction in vitro, meanwhile the effects of mangiferin on the nuclear factor kappa-B (NF-kappaB) signaling pathway were also investigated by Western Blot. Finally, the anti-osteoarthritic protective effect of mangiferin was evaluated in the rat model by anterior cruciate ligament transection (ACLT) combined with bilateral ovariectomy-induced OA in vivo. The results showed that the mangiferin was found to inhibit the expression of MMP-13, TNF-alpha, and Caspase-3 which also increased the expression of Collagen II and cystatin-C in IL 1beta induced rat chondrocytes. In addition, IL-1beta-induced activation of nuclear factor kappa-B (NF-kappaB) and the degradation of inhibitor of kappaB (IkappaB)-alpha were suppressed by mangiferin. For the in vivo study in a rat model of OA, 100 microl of mangiferin was administered by intra-articular injections for rats, the results showed that the cartilage degradation was suppressed by mangiferin through Micro CT and Histological Examination. According to both in vitro and in vivo results, mangiferin has a protective effect in the treatment of OA which may be a promising therapeutic agent for OA.
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Affiliation(s)
- Y Wang
- Department of Orthopaedics, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China. and
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Zhou Q, Ye F, Qiu J, Zhang S, Jiang Q, Xue D, Li J. Dihydroartemisinin Induces ER Stress-Mediated Apoptosis in Human Tongue Squamous Carcinoma by Regulating ROS Production. Anticancer Agents Med Chem 2022; 22:2902-2908. [PMID: 35168525 DOI: 10.2174/1871520622666220215121341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/24/2021] [Accepted: 12/20/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Tongue squamous cell carcinoma is a fatal disease characterized by high invasion and early metastasis. Dihydroartemisinin, an antimalarial drug with multiple biological activities, is reported to be a potential anti-cancer agent. OBJECTIVE This study aimed to evaluate the antitumor effect of Dihydroartemisinin on tongue squamous cell carcinoma cells, and to identify the underlying mechanisms of Dihydroartemisinin-induced cell apoptosis. METHODS Here, Cell Counting Kit 8 assay and colony formation assay were conducted to study cell proliferation. Annexin V-FITC/propidium iodide staining and western blot analysis were performed to analyze cell apoptosis. DCFH-DA probe was used to measure the generation of cellular reactive oxygen species. Endoplasmic reticulum stress activation was also determined via western blot analysis. RESULTS The results showed that Dihydroartemisinin substantially inhibited cell proliferation and induced cell apoptosis in vivo. Moreover, reactive oxygen species production and endoplasmic reticulum stress activation were both observed after stimulation with Dihydroartemisinin. However, the reactive oxygen species inhibitor N-acetylcysteine significantly alleviated Dihydroartemisinin-induced endoplasmic reticulum stress and apoptosis. CONCLUSION These results imply that Dihydroartemisinin induced cell apoptosis by triggering reactive oxygen species-mediated endoplasmic reticulum stress in CAL27 cells. In addition, Dihydroartemisinin might be an effective drug for tongue squamous cell carcinoma therapy.
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Affiliation(s)
- Qun Zhou
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P.R. China
| | - Fangfei Ye
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P.R. China
| | - Jiaxuan Qiu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P.R. China
| | - Siying Zhang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P.R. China
| | - Qingkun Jiang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P.R. China
| | - Danfeng Xue
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P.R. China
| | - Jialun Li
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P.R. China
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Zhou X, Xue D, Qiu J. Identification of biomarkers related to glycolysis with weighted gene co-expression network analysis in oral squamous cell carcinoma. Head Neck 2021; 44:89-103. [PMID: 34713497 DOI: 10.1002/hed.26910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 09/10/2021] [Accepted: 10/05/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Oral squamous cell carcinoma (OSCC) is the most common tumor in the oral cavity and maxillofacial region. Increasing evidence suggests that aerobic glycolysis plays an important role in the occurrence, development, and prognosis of OSCC. Therefore, the identification of biomarkers related to glycolysis in OSCC represents considerable potential for improving its treatment. METHODS In the present study, a single-sample gene-set enrichment analysis (ssGSEA) algorithm with weighted gene co-expression network analysis (WGCNA) were used to quantify the degree of glycolysis and identify key modules with the greatest correlation with glycolysis. RESULTS Glycolytic scores significantly correlated with prognosis. In the key module 5 HUB genes were finally selected, which displayed a robust predictive effect. The expressions of key genes were associated with glycolysis. CONCLUSIONS The research comprehensively analyzed the glycolysis of OSCC and identified several biomarkers related to glycolysis. These biomarkers may represent potential therapeutic targets for future OSCC therapy.
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Affiliation(s)
- Xiongming Zhou
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Danfeng Xue
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Jiaxuan Qiu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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Abstract
AbstractPhenols are important components of pharmaceuticals, biologically active natural products, and materials. Here, we briefly discuss recent advances in catalytic hydroxylation reactions for the synthesis of phenols, with particular attention to our recent work. H2O is proved to be an efficient hydroxide reagent in converting (hetero)aryl halides into the corresponding phenols under synergistic organophotoredox and nickel catalysis. Aryl bromides as well as less reactive aryl chlorides show high reactivity in this catalytic system. This methodology can be applied to the efficient synthesis of diverse phenols and allows the hydroxylation of multifunctional pharmaceutically relevant aryl halides.1 Introduction2 Representative Methods for Transition-Metal-Catalyzed Hydroxylation of (Hetero)Aryl Halides3 Organophotoredox/Ni Dual Catalytic Hydroxylation of Aryl Halides with Water4 Summary and Outlook
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Xue D, Xue YF, Zhang LJ, Cui LZ, Guo KQ, Lian J. LINC00641 induces the malignant progression of colorectal carcinoma through the miRNA-424-5p/PLSCR4 feedback loop. Eur Rev Med Pharmacol Sci 2021; 25:749-757. [PMID: 33577029 DOI: 10.26355/eurrev_202101_24636] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To illustrate the role of LINC00641 in inducing the malignant progression of colorectal cancer (CRC) through the miRNA-424-5p/PLSCR4 feedback loop. PATIENTS AND METHODS LINC00641 levels in paired CRC and non-tumoral tissues were detected by quantitative real-time polymerase chain reaction (qRT-PCR). Its prognostic potential in CRC was assessed by Kaplan-Meier method. Changes in proliferative and migratory abilities of HCT116 and SW620 cells transfected with si-LINC00641 were evaluated by 5-Ethynyl-2'- deoxyuridine (EdU), cell counting kit-8 (CCK-8) and transwell assay. The feedback loop LINC00641/miRNA-424-5p/PLSCR4 was identified through Dual-Luciferase reporter assay and its involvement in CRC progression was finally explored by rescue experiments. RESULTS LINC00641 was upregulated in CRC tissues, which was an unfavorable factor to the overall survival of CRC. Proliferative and migratory abilities of HCT116 and SW620 cells were inhibited by knockdown of LINC00641. LINC00641 could competitively bind miRNA-424-5p, thereby abolishing its inhibitory effect on PLSCR4 expression. Knockdown of PLSCR4 could inhibit proliferative and migratory abilities of HCT116 and SW620 cells. CONCLUSIONS LINC00641 stimulates proliferative and migratory abilities of CRC through the miRNA-424-5p/PLSCR4 feedback loop.
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Affiliation(s)
- D Xue
- Department of Targeted Therapy, Shanxi Cancer Hospital, Taiyuan, China.
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Pal-Ghosh R, Xue D, Warburton R, Hill N, Polgar P, Wilson JL. CDC2 Is an Important Driver of Vascular Smooth Muscle Cell Proliferation via FOXM1 and PLK1 in Pulmonary Arterial Hypertension. Int J Mol Sci 2021; 22:6943. [PMID: 34203295 PMCID: PMC8268698 DOI: 10.3390/ijms22136943] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 01/09/2023] Open
Abstract
A key feature of pulmonary arterial hypertension (PAH) is the hyperplastic proliferation exhibited by the vascular smooth muscle cells from patients (HPASMC). The growth inducers FOXM1 and PLK1 are highly upregulated in these cells. The mechanism by which these two proteins direct aberrant growth in these cells is not clear. Herein, we identify cyclin-dependent kinase 1 (CDK1), also termed cell division cycle protein 2 (CDC2), as having a primary role in promoting progress of the cell cycle leading to proliferation in HPASMC. HPASMC obtained from PAH patients and pulmonary arteries from Sugen/hypoxia rats were investigated for their expression of CDC2. Protein levels of CDC2 were much higher in PAH than in cells from normal donors. Knocking down FOXM1 or PLK1 protein expression with siRNA or pharmacological inhibitors lowered the cellular expression of CDC2 considerably. However, knockdown of CDC2 with siRNA or inhibiting its activity with RO-3306 did not reduce the protein expression of FOXM1 or PLK1. Expression of CDC2 and FOXM1 reached its maximum at G1/S, while PLK1 reached its maximum at G2/M phase of the cell cycle. The expression of other CDKs such as CDK2, CDK4, CDK6, CDK7, and CDK9 did not change in PAH HPASMC. Moreover, inhibition via Wee1 inhibitor adavosertib or siRNAs targeting Wee1, Myt1, CDC25A, CDC25B, or CDC25C led to dramatic decreases in CDC2 protein expression. Lastly, we found CDC2 expression at the RNA and protein level to be upregulated in pulmonary arteries during disease progression Sugen/hypoxia rats. In sum, our present results illustrate that the increased expression of FOXM1 and PLK1 in PAH leads directly to increased expression of CDC2 resulting in potentiated growth hyperactivity of PASMC from patients with pulmonary hypertension. Our results further suggest that the regulation of CDC2, or associated regulatory proteins, will prove beneficial in the treatment of this disease.
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Affiliation(s)
- Ruma Pal-Ghosh
- Tupper Research Institute and Pulmonary, Critical Care, and Sleep Division, Tufts Medical Center, Boston, MA 02111, USA; (R.P.-G.); (D.X.); (R.W.); (N.H.); (P.P.)
| | - Danfeng Xue
- Tupper Research Institute and Pulmonary, Critical Care, and Sleep Division, Tufts Medical Center, Boston, MA 02111, USA; (R.P.-G.); (D.X.); (R.W.); (N.H.); (P.P.)
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Rod Warburton
- Tupper Research Institute and Pulmonary, Critical Care, and Sleep Division, Tufts Medical Center, Boston, MA 02111, USA; (R.P.-G.); (D.X.); (R.W.); (N.H.); (P.P.)
| | - Nicholas Hill
- Tupper Research Institute and Pulmonary, Critical Care, and Sleep Division, Tufts Medical Center, Boston, MA 02111, USA; (R.P.-G.); (D.X.); (R.W.); (N.H.); (P.P.)
| | - Peter Polgar
- Tupper Research Institute and Pulmonary, Critical Care, and Sleep Division, Tufts Medical Center, Boston, MA 02111, USA; (R.P.-G.); (D.X.); (R.W.); (N.H.); (P.P.)
| | - Jamie L. Wilson
- Tupper Research Institute and Pulmonary, Critical Care, and Sleep Division, Tufts Medical Center, Boston, MA 02111, USA; (R.P.-G.); (D.X.); (R.W.); (N.H.); (P.P.)
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Xue YF, Xue D, Yao B, Hu CG, Liu J. Correlation between microRNA-766 expression in patients with advanced gastric cancer and the efficacy of platinum-containing chemotherapy. Eur Rev Med Pharmacol Sci 2021; 24:8822-8829. [PMID: 32964970 DOI: 10.26355/eurrev_202009_22821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE We aimed at observing the correlation between microRNA-766 expression and the efficacy of platinum-containing chemotherapy in patients with stage IV gastric cancer (GCa). PATIENTS AND METHODS Tissue specimens were obtained from 100 patients with stage IV GCa who received platinum-based chemotherapy, and microRNA-766 expression in these samples was examined by quantitative real-time polymerase chain reaction (qPCR) analysis. Survival analysis was carried out through Kaplan-Meier test. The influencing factors of survival were assessed through COX univariate and multivariate regression. RESULTS GCa tissues contained significant lower expression of microRNA-766 than adjacent tissues. The degree of tumor differentiation and peritoneal metastasis were confirmed to have great relevance to microRNA-766 level. Patients with high microRNA-766 expression have better chemotherapy efficacy and longer progression-free survival. CONCLUSIONS Our study shows for the first time that the highly expressed microRNA-766 in tumor tissues of patients with stage Ⅳ GCa predicts better platinum-containing chemotherapy efficacy and prognosis.
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Affiliation(s)
- Y-F Xue
- Special Needs Ward, Shanxi Cancer Hospital, Taiyuan, China.
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Xue D, Zhou X, Qiu J. Cytotoxicity mechanisms of plumbagin in drug-resistant tongue squamous cell carcinoma. J Pharm Pharmacol 2021; 73:98-109. [PMID: 33791802 DOI: 10.1093/jpp/rgaa027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/22/2020] [Indexed: 01/10/2023]
Abstract
OBJECTIVES To evaluate the inhibitory effect and mechanism of plumbagin (PLB) against drug-resistant tongue squamous cell carcinoma (TSCC), and whether its antitumour effect is not affected by tumour drug resistance. METHODS TSCC sensitive CAL27 cells and drug-resistant CAL27/RE cells were used to study the cytotoxicity and mechanism of PLB in vitro, including CCK-8 analysis, colony formation, DAPI staining, flow cytometry assay, transmission electron microscopy, western blotting assay, autophagy, apoptosis and ROS fluorescent probes. BALB/c nude mice xenograft models were used to study the growth inhibitory effect of PLB in vivo. KEY FINDINGS The results showed that the cell viability and proliferation inhibition and apoptosis induction abilities of PLB on drug-resistant cells were more obvious than that on sensitive cells. And PLB induced protective autophagy in TSCC cells. Mechanistically, PLB induced apoptosis and autophagy by generating reactive oxygen species to mediate JNK and AKT/mTOR pathways. Finally, the growth inhibitory effect of PLB against drug-resistant TSCC was also confirmed in vivo. CONCLUSIONS PLB will be a promising anticancer agent to overcome drug-resistant TSCC without being affected by its drug resistance properties.
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Affiliation(s)
- Danfeng Xue
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xiongming Zhou
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Jiaxuan Qiu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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Jiang Q, Xue D, Shi F, Qiu J. Prognostic significance of an autophagy-related long non-coding RNA signature in patients with oral and oropharyngeal squamous cell carcinoma. Oncol Lett 2020; 21:29. [PMID: 33240435 PMCID: PMC7681235 DOI: 10.3892/ol.2020.12290] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 09/28/2020] [Indexed: 02/07/2023] Open
Abstract
Traditional clinicopathological indices are insufficient in predicting the prognosis of patients diagnosed with oral and oropharyngeal squamous cell carcinoma (OSCC/OPSCC). Notably, autophagy and long non-coding RNAs (lncRNAs) regulate the development and progression of various types of cancer. The present study aimed to assess the association between autophagy-related lncRNAs and the prognosis of patients diagnosed with OSCC/OPSCC. Gene sequencing and clinicopathological data of patients with OSCC/OPSCC were downloaded from The Cancer Genome Atlas database, while gene set functional classification was downloaded from the Gene Set Enrichment Analysis database. Out of the 413 transcriptome data samples and 402 clinicopathological data samples retrieved, a total of nine autophagy-related lncRNAs, including PTCSC2, AC099850.3, LINC01963, RTCA-AS1, AP002884.1, UBAC2-AS1, AL512274.1, MIR600HG and AL354733.3, were screened. This was geared towards establishing a signature through gene co-expression network, univariate and Least Absolute Shrinkage and Selection Operator Cox regression analyses. Based on this signature, the patients were subdivided into a high-risk group and a low-risk group. Kaplan-Meier survival analysis revealed that the overall survival of the high-risk group was significantly lower than that of the low-risk group. Furthermore, principal components analysis demonstrated that the patients diagnosed with OSCC/OPSCC could be distinguished into low-survival and high-survival groups according to the signature. Univariate and multivariate Cox regression analyses of clinicopathological data and the signature revealed that the signature could potentially be used as an independent prognostic factor for OSCC/OPSCC. In addition, reverse transcription-quantitative PCR analysis of clinical samples demonstrated the validity of the signature. In summary, the present study revealed that the signature based on autophagy-related lncRNAs potentially acts as an independent prognostic indicator for patients with OSCC/OPSCC. Furthermore, it promotes research on targeted diagnosis and treatment of patients diagnosed with OSCC/OPSCC.
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Affiliation(s)
- Qingkun Jiang
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Danfeng Xue
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Fanzhe Shi
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Jiaxuan Qiu
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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Xue D, Zhou X, Qiu J. Emerging role of NRF2 in ROS-mediated tumor chemoresistance. Biomed Pharmacother 2020; 131:110676. [PMID: 32858502 DOI: 10.1016/j.biopha.2020.110676] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 08/16/2020] [Accepted: 08/20/2020] [Indexed: 12/24/2022] Open
Abstract
Chemoresistance is a central cause for the tumor management failure. Cancer cells disrupt the redox homeostasis through reactive oxygen species (ROS) regulatory mechanisms, leading to tumor progression and chemoresistance. The transcription factor nuclear factor erythroid 2-related factor 2 (NRF2) is a master regulator of neutralizing cellular ROS and restoring redox balance. Understanding the role of NRF2 in ROS-mediated chemoresistance can be helpful in the development of chemotherapy strategies with better efficiency. In this review, we sum up the roles of ROS in the development of chemoresistance to classical chemotherapy agents including cisplatin, 5-fluorouracil, gemcitabine, oxaliplatin, paclitaxel, and doxorubicin, and how to overcome ROS-mediated tumor chemoresistance by targeting NRF2. Finally, we propose that targeting NRF2 might be a promising strategy to resist ROS-driven chemoresistance and acquire better efficacy in cancer treatment.
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Affiliation(s)
- Danfeng Xue
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Xiongming Zhou
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Jiaxuan Qiu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.
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Jiang Q, Xue D, Xin Y, Qiu J. A competing risk nomogram for predicting cancer-specific death of patients with buccal mucosa cancer. Oral Dis 2020; 27:900-910. [PMID: 32791562 DOI: 10.1111/odi.13609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 08/02/2020] [Accepted: 08/06/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Our aim was to develop and validate a competing risk nomogram to determine the probability of cancer-specific death in buccal mucosa cancer (BMC) patients. MATERIALS AND METHODS We examined the records of BMC patients in the Surveillance, Epidemiology, and End Results (SEER) Program and First Affiliated Hospital of Nanchang University (China). We adopted the cumulative incidence function and Fine-Gray proportional hazards model based on univariate and multivariate analyses by R-software to identify the risk factors associated with cancer-specific death. Subsequently, a nomogram was developed and validated to predict the 3- and 5-year probability of cancer-specific death. RESULTS In 1,286 BMC patients identified from SEER database, cumulative incidences of cancer-specific death after diagnosis were 33.4% and 35.5% for 3 and 5 years, respectively. In the training cohort (n = 902) from SEER database, the Fine-Gray model indicated that age, Tumor Node Metastasis (TNM) stages, grade, surgery, and histological type were independent risk factors associated with cancer-specific death, based on which a prognostic nomogram was developed. In the internal validation cohort from SEER database (n = 384) and the external validation cohort from our medical center (n = 174), the nomogram was well calibrated and showed remarkable prediction performance. CONCLUSION The nomogram created herein may prove to be a good assistant tool for assessing the prognosis of BMC patients.
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Affiliation(s)
- Qingkun Jiang
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Danfeng Xue
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Yuqi Xin
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Jiaxuan Qiu
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Medical College, Nanchang University, Nanchang, Jiangxi, China
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15
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Xue D, Sun JL, Yang J. Early L-T4 intervention improves fetal heart development in pregnant rats with subclinical hypothyroidism rats by activating BMP4/Smad4 signaling pathway. BMC Cardiovasc Disord 2020; 20:369. [PMID: 32795258 PMCID: PMC7427857 DOI: 10.1186/s12872-020-01646-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 07/31/2020] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND It is unclear whether the offspring of subclinical hypothyroidism (SCH) pregnant rats still have abnormal cardiac development, and whether early intervention with L-T4 can improve the abnormality of these offspring. Therefore, the aim of this study was to investigate the effect of early L-T4 intervention on the heart development of offspring of SCH pregnant rats and its possible molecular mechanism. METHODS Eighty female Wistar rats were randomly divided into Sham group (placebo control), SCH group, LT4-E10 group (L-T4 treatment started on the 10th day of gestation), and LT4-E13 group (L-T4 treatment started on the 13th day of gestation). Each group was further divided into E16 (16th day of gestation), E18 (18th day of gestation), P5 (5th day postnatal day), and P10 (10th day postnatal day) subgroups. The levels of serum TT4 and TSH, the ratio of heart weight to body weight of offspring rats, the expression of metabolic enzymes, and the histopathology of cardiomyocytes were determined. To elucidate the effects of L-T4 on cardiac development of offspring of SCH pregnant rats, the expression levels of GATA4, Nkx2-5 and proteins involved in BMP4/Smad4 signaling pathway were detected by immunohistochemistry, real time quantitative polymerase chain reaction and Western blotting to elucidate the molecular mechanism of L-T4 regulating the heart development of the offspring of SCH pregnant rats. RESULTS Compared with Sham group, serum TSH was significantly increased in SCH pregnant rats. Moreover, early L-T4 intervention significantly reduced the levels of serum TSH. Compared with the offspring in the SCH group, early L-T4 intervention significantly increased the heart weight, heart weight to body weight ratio, the activities of succinate dehydrogenase (SDH), Na+/K+-ATPase and Ca2+-ATPase, but reduced myocardial cell shrinkage and nuclear staining, hyperemia/congestion and vacuolar degeneration. In addition, early L-T4 intervention not only significantly increased the mRNA and protein expression of Gata4 and Nkx2-5, but also increased the protein expression involved in BMP4/Smad4 signal pathway in myocardium of the offspring of SCH pregnant rats. CONCLUSIONS Early L-T4 intervention can regulate the cardiac development of the offspring of SCH pregnant rats by activating BMP4/Smad4 signaling pathway and increasing the expression of Gata4 and Nkx2-5 proteins.
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Affiliation(s)
- D Xue
- Department of Cardiovascular Ultrasound, The First Hospital of China Medical University, No.115, Nanjing Road, HePing District, Shenyang, 110001, China.,Department of Cardiovascular Ultrasound, General Hospital of Northern Theater Command, Shenyang, China
| | - J L Sun
- Department of Gynaecology and Obstetrics, General Hospital of Northern Theater Command, Shenyang, China
| | - J Yang
- Department of Cardiovascular Ultrasound, The First Hospital of China Medical University, No.115, Nanjing Road, HePing District, Shenyang, 110001, China.
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16
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Wang D, Wu ZQ, Wang W, Wang XY, Liu J, Hao CY, Li ZY, Xue D, Shen L, Ji JF. [Comprehensive analysis of unplanned abdominal - pelvic reoperations in Peking University Cancer Hospital and Institute from 2008 to 2018]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:869-875. [PMID: 31550827 DOI: 10.3760/cma.j.issn.1671-0274.2019.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Objective: To summarize the characteristics of abdominal-pelvic unplanned reoperation (URO) in a cancer hospital. Methods: Retrospectively descriptive cohort research was adopted. The classification of diseases was based on ICD-10, and surgical classification was based on ICD-9-CM-3. Medical record summary database from 2008 to 2018 in Beijing Cancer Hospital was collected, and all URO information of abdominal-pelvic surgery was retrieve. The time of URO, disease type, surgery type and cause were statistically analyzed. Distribution of main disease incidence and constituent ratio, and the application of major surgery and surgery type composition ratio were analyzed as well. Results: From 2008 to 2018, a total of 46854 cases underwent abdominal-pelvic surgery (including gastrointestinal, hepatic-biliary-pancreatic, gynecological, urological, or esophageal cancer surgery) and 713 patients received URO (1.52%), including 486 males and 227 females (2.14:1.00) with a mean age of (58.1±12.2) years. A total of 246 patients (34.50%) had comorbidity, and with comorbidity: without comorbidity was 1.13:1.00. The hospital stay was (44.5±43.0) days, and the total cost was (178000±112000) yuan. There were 22 deaths (3.09%). The median interval between URO and the first operation was 8 (0 to 131) days. The highest rate of URO was 2.45% (89/3629) in 2012, while the lowest was 0.95% (53/5596) in 2015. The top 3 major cancer types of URO included colorectal cancer (222 cases, 31.14%), gastric cancer (166 cases, 23.28%) and esophageal cancer (45 cases, 6.31%). The cancer types with the highest URO rate included pancreatic cancer (3.97%, 30/756), gastric cancer (1.81%, 166/9171) and colorectal cancer (1.80%, 222/12333). The top 3 surgical procedures resulting in URO were rectal resection (109 cases, 15.29%), total gastrectomy (79 cases, 11.08%), and total pancreatectomy (64 cases, 8.98%). Focusing on 497 URO cases from 2012 to 2018, 465 cases (93.56%) followed relatively difficult grade III and IV surgery, while only 32 cases (6.44%) followed grade I and II surgery. The top 5 main causes of URO were bleeding (225 cases, 31.56%), anastomotic leak (225 cases, 31.56%), infection (89 cases, 12.48%), intestinal obstruction (53 cases, 7.43%), and wound dehiscence (35 cases, 4.91%), adding up to a total of 87.94% of all URO. Conclusion: This study summarizes the epidemiology of abdominal - pelvic URO in our cancer institution, providing the solid baseline for future investigation of URO and the subsequent formulation of corresponding prevention and intervention measures.
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Affiliation(s)
- D Wang
- Department of Medical Affair, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Z Q Wu
- Department of Gastrointestinal Surgery, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - W Wang
- Statistic Office of Medical Records, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - X Y Wang
- Statistic Office of Medical Records, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - J Liu
- Statistic Office of Medical Records, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - C Y Hao
- Soft Tissue and Retroperitoneal Neoplasms Center, Hepatobiliary and Pancreatic Surgery II, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Z Y Li
- Department of Gastrointestinal Surgery, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - D Xue
- Department of Medical Affair, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - L Shen
- Department of Digestive Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - J F Ji
- Department of Gastrointestinal Surgery, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing 100142, China
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Xue D, Zhu D, Duan H, Wang Z, Lv Y, Xiong W, Li L, Liu M, Gan L. Deep-eutectic-solvent synthesis of N/O self-doped hollow carbon nanorods for efficient energy storage. Chem Commun (Camb) 2019; 55:11219-11222. [PMID: 31469150 DOI: 10.1039/c9cc06008a] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N/O self-doped hollow carbon nanorods (HCNs) with micro/mesoporous walls are fabricated based on a new deep-eutectic-solvent that serves as an all-in-one precursor, self-template, and self-dopant agent. The carbon-based supercapacitor using an ionic liquid electrolyte exhibits a high energy density of 116.5 W h kg-1 with excellent long-term cycling performance.
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Affiliation(s)
- Danfeng Xue
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China.
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Zhu DW, Xue D, Lai W, Xu WN, Jiang SY. [microRNA-146a reverses the inhibitory effects of Porphyromonas gingivalis lipopolysaccharide on osteogenesis of human periodontal ligament cells]. Zhonghua Kou Qiang Yi Xue Za Zhi 2018; 53:753-759. [PMID: 30419656 DOI: 10.3760/cma.j.issn.1002-0098.2018.11.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To investigate the effects and mechanisms of microRNA-146a (miR-146a) on osteogenic differentiation of human periodontal ligament cells (hPDLC) stimulated by lipopolysaccharide (LPS) of Porphyromonas gingivalis (Pg). Methods: hPDLC were cultured in vitro and induced to the phase of osteogenic differentiation. These cells were divided into five groups: non-osteogenic differentiation cells, osteogenic differentiation cells, osteogenic differentiation cells treated with Pg LPS, osteogenic differentiation cells treated with Pg LPS and miR-146a mimic, osteogenic differentiation cells treated with Pg LPS and miR-146a negative control. Osteogenic markers and mineralization were detected via quantitative real-time PCR (qPCR) and alizarin red staining, respectively. Meanwhile, non-radioactive transcription factor assay was applied to explore the nuclear activity of nuclear factor kappa B (NF-κB) p65 in nuclear extracts of hPDLC. Results: Compared with cells of osteogenic differentiation in non-LPS-stimulated groups, Pg LPS could decrease the markers of osteogenic differentiation of hPDLC such as collagen Ⅰ (Col-Ⅰ), alkaline phosphatase (ALP), Runt-related transcription factor-2 (RUNX2) and osteocalcin (OCN) (P<0.05), inhibit mineralization, and stimulate NF-κB p65 nuclear activity expression (non-LPS stimulated group: 1.023±0.217, LPS stimulated group: 6.252±0.613, P=0.008). However, compared with cells in Pg LPS/miR-146a negative control group, miR-146a increased Col-Ⅰ (P=0.007) and OCN (P=0.049) mRNA expression, rather than ALP (P=0.167) and RUNX2 (P=0.580) at day 3; miR-146a also upregulated mRNA levels of Col-Ⅰ, ALP, RUNX2 and OCN (P<0.05) at day 7 and day 14, and enhance mineralization. Meanwhile, miR-146a mimic could decrease the nuclear activity of NF-κB p65 induced by Pg LPS in hPDLC (miR-146a: 2.427±0.354, negative control: 5.863±0.482, P=0.019). Conclusions: miR-146a could reverse the inhibitory effects of Pg LPS on osteogenic differentiation of hPDLC through enhancing the expression of osteogenic markers and decreasing inflammatory pathway in hPDLC.
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Affiliation(s)
- D W Zhu
- Department of Oral and Maxillofacial Surgery, Institute of Stomatology, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, China
| | - D Xue
- Department of Periodontics, Institute of Stomatology, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, China(Present address: Department of Dentistry, Xuanwu Hospital, Capital Medical University, Beijing 100053, China)
| | - W Lai
- Department of Periodontics, Institute of Stomatology, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, China
| | - W N Xu
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Chengdu 610041, China
| | - S Y Jiang
- Department of Periodontics, Institute of Stomatology, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, China(Present address: Center of Stomatology, Shenzhen Hospital, Peking University, Shenzhen Guangdong 518036, China)
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Na S, Zhang J, Zhou X, Tang A, Huang D, Xu Q, Xue D, Qiu J. Plumbagin-mediating GLUT1 suppresses the growth of human tongue squamous cell carcinoma. Oral Dis 2018; 24:920-929. [PMID: 29080392 DOI: 10.1111/odi.12799] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Revised: 10/16/2017] [Accepted: 10/17/2017] [Indexed: 12/14/2022]
Affiliation(s)
- S Na
- Department of Oral and Maxillofacial Surgery; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - J Zhang
- Department of Oral and Maxillofacial Surgery; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - X Zhou
- Department of Oral and Maxillofacial Surgery; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - A Tang
- Department of Oral and Maxillofacial Surgery; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - D Huang
- Research Institute of Digestive Diseases and Department of Gastroenterology; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - Q Xu
- Research Institute of Digestive Diseases and Department of Gastroenterology; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - D Xue
- Department of Oral and Maxillofacial Surgery; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - J Qiu
- Department of Oral and Maxillofacial Surgery; The First Affiliated Hospital of Nanchang University; Nanchang China
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Sun J, Bai H, Chen M, Xue D, Chen J. A CROSS-SECTIONAL STUDY—THE RELATIONSHIP OF MUSCLE MASS AND MUSCLE FUNCTION WITH AGE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2066] [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: 11/12/2022] Open
Affiliation(s)
- J. Sun
- Huadong Hospital of Fudan University, Shanghai, China
| | - H. Bai
- Huadong Hospital of Fudan University, Shanghai, China
| | - M. Chen
- Huadong Hospital of Fudan University, Shanghai, China
| | - D. Xue
- Huadong Hospital of Fudan University, Shanghai, China
| | - J. Chen
- Huadong Hospital of Fudan University, Shanghai, China
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Pan ST, Xue D, Li ZL, Zhou ZW, He ZX, Yang Y, Yang T, Qiu JX, Zhou SF. Computational Identification of the Paralogs and Orthologs of Human Cytochrome P450 Superfamily and the Implication in Drug Discovery. Int J Mol Sci 2016; 17:ijms17071020. [PMID: 27367670 PMCID: PMC4964396 DOI: 10.3390/ijms17071020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 04/02/2016] [Accepted: 06/07/2016] [Indexed: 12/31/2022] Open
Abstract
The human cytochrome P450 (CYP) superfamily consisting of 57 functional genes is the most important group of Phase I drug metabolizing enzymes that oxidize a large number of xenobiotics and endogenous compounds, including therapeutic drugs and environmental toxicants. The CYP superfamily has been shown to expand itself through gene duplication, and some of them become pseudogenes due to gene mutations. Orthologs and paralogs are homologous genes resulting from speciation or duplication, respectively. To explore the evolutionary and functional relationships of human CYPs, we conducted this bioinformatic study to identify their corresponding paralogs, homologs, and orthologs. The functional implications and implications in drug discovery and evolutionary biology were then discussed. GeneCards and Ensembl were used to identify the paralogs of human CYPs. We have used a panel of online databases to identify the orthologs of human CYP genes: NCBI, Ensembl Compara, GeneCards, OMA (“Orthologous MAtrix”) Browser, PATHER, TreeFam, EggNOG, and Roundup. The results show that each human CYP has various numbers of paralogs and orthologs using GeneCards and Ensembl. For example, the paralogs of CYP2A6 include CYP2A7, 2A13, 2B6, 2C8, 2C9, 2C18, 2C19, 2D6, 2E1, 2F1, 2J2, 2R1, 2S1, 2U1, and 2W1; CYP11A1 has 6 paralogs including CYP11B1, 11B2, 24A1, 27A1, 27B1, and 27C1; CYP51A1 has only three paralogs: CYP26A1, 26B1, and 26C1; while CYP20A1 has no paralog. The majority of human CYPs are well conserved from plants, amphibians, fishes, or mammals to humans due to their important functions in physiology and xenobiotic disposition. The data from different approaches are also cross-validated and validated when experimental data are available. These findings facilitate our understanding of the evolutionary relationships and functional implications of the human CYP superfamily in drug discovery.
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Affiliation(s)
- Shu-Ting Pan
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital of Nanchang University, Nanchang 330003, China.
| | - Danfeng Xue
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital of Nanchang University, Nanchang 330003, China.
| | - Zhi-Ling Li
- Department of Pharmacy, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 200040, China.
| | - Zhi-Wei Zhou
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA.
| | - Zhi-Xu He
- Guizhou Provincial Key Laboratory for Regenerative Medicine, Stem Cell and Tissue Engineering Research Center & Sino-US Joint Laboratory for Medical Sciences, Guizhou Medical University, Guiyang 550004, China.
| | - Yinxue Yang
- Department of Colorectal Surgery, General Hospital of Ningxia Medical University, Yinchuan 750004, China.
| | - Tianxin Yang
- Department of Internal Medicine, University of Utah and Salt Lake Veterans Affairs Medical Center, Salt Lake City, UT 84132, USA.
| | - Jia-Xuan Qiu
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital of Nanchang University, Nanchang 330003, China.
| | - Shu-Feng Zhou
- Department of Chemical and Pharmaceutical Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China.
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Abstract
Partial duplication of the long arm of chromosome 11 and the partial trisomy of 22q are uncommon karyotypic abnormalities. Here, we report the case of a 6-year-old girl who showed partial trisomy of 11q and 22q, as a result of a maternal balanced reciprocal translocation (11;22), and exhibited dysmorphic features, severe intellectual disability, brain malformations, and speech delay related to this unique chromosomal abnormality. Array comparative genomic hybridization (array CGH) revealed a gain in copy number on the long arm of chromosome 11, spanning at least 18.22 Mb. Additionally, there was a gain in copy number on the long arm of chromosome 22, spanning at least 3.46 Mb. FISH analysis using a chromosome 11 short arm telomere probe (11p14.2), a chromosome 11 long arm telomere probe (11q24.3), and a chromosome 22 long arm telomere probe (22q13.33) confirmed the origin of the marker chromosome. It has been confirmed by the State Key Laboratory of Medical Genetics of China that this is the first reported instance of the karyotype 47,XX, +der(22)t(11;22)(q23.3;q11.1)mat in the world. Our study reports an additional case that can be used to further characterize and delineate the clinical ramifications of partial trisomy of 11q and 22q.
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Affiliation(s)
- P-S Zou
- Aristogenesis Center, No. 202 Hospital of PLA, Shenyang, China
| | - H-F Li
- Genetic Laboratory, Women and Children's Hospital of LinYi City, LinYi, China
| | - L-S Chen
- Aristogenesis Center, No. 202 Hospital of PLA, Shenyang, China
| | - M Ma
- Aristogenesis Center, No. 202 Hospital of PLA, Shenyang, China
| | - X-H Chen
- Aristogenesis Center, No. 202 Hospital of PLA, Shenyang, China
| | - D Xue
- Special Clinical Department, No. 202 Hospital of PLA, Shenyang, China
| | - D-H Cao
- Aristogenesis Center, No. 202 Hospital of PLA, Shenyang, China
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Ni B, Dong X, Fu J, Yin X, Lin L, Xia Z, Zhao Y, Xue D, Yang C, Ni J. Phytochemical and biological properties of ajuga decumbens (labiatae): A review. TROP J PHARM RES 2015. [DOI: 10.4314/tjpr.v14i8.28] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Xue D, Wang Q, Chen Z, Cai L, Bao L, Qi Q, Liu L, Wang X, Jin H, Wang J, Wu H, Liu H, Chen Q. 3-Anhydro-6-hydroxy-ophiobolin A, a fungal sesterterpene from Bipolaris oryzae induced autophagy and promoted the degradation of α-synuclein in PC12 cells. Bioorg Med Chem Lett 2015; 25:1464-70. [DOI: 10.1016/j.bmcl.2015.02.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 02/09/2015] [Accepted: 02/14/2015] [Indexed: 12/27/2022]
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Liu C, Cai J, Cheng Z, Dai X, Tao L, Zhang J, Xue D. Xiayuxue decoction reduces renal injury by promoting macrophage apoptosis in hepatic cirrhotic rats. Genet Mol Res 2015; 14:10760-73. [DOI: 10.4238/2015.september.9.15] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wu H, Xue D, Chen G, Han Z, Huang L, Zhu C, Wang X, Jin H, Wang J, Zhu Y, Liu L, Chen Q. The BCL2L1 and PGAM5 axis defines hypoxia-induced receptor-mediated mitophagy. Autophagy 2014; 10:1712-25. [PMID: 25126723 DOI: 10.4161/auto.29568] [Citation(s) in RCA: 132] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Receptor-mediated mitophagy is one of the major mechanisms of mitochondrial quality control essential for cell survival. We previously have identified FUNDC1 as a mitophagy receptor for selectively removing damaged mitochondria in mammalian systems. A critical unanswered question is how receptor-mediated mitophagy is regulated in response to cellular and environmental cues. Here, we report the striking finding that BCL2L1/Bcl-xL, but not BCL2, suppresses mitophagy mediated by FUNDC1 through its BH3 domain. Mechanistically, we demonstrate that BCL2L1, but not BCL2, interacts with and inhibits PGAM5, a mitochondrially localized phosphatase, to prevent the dephosphorylation of FUNDC1 at serine 13 (Ser13), which activates hypoxia-induced mitophagy. Our results showed that the BCL2L1-PGAM5-FUNDC1 axis is critical for receptor-mediated mitophagy in response to hypoxia and that BCL2L1 possesses unique functions distinct from BCL2.
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Affiliation(s)
- Hao Wu
- State Key Laboratory of Biomembrane and Membrane Biotechnology; Institute of Zoology; Chinese Academy of Sciences; Beijing, China; University of Chinese Academy of Sciences; Beijing, China
| | - Danfeng Xue
- State Key Laboratory of Biomembrane and Membrane Biotechnology; Institute of Zoology; Chinese Academy of Sciences; Beijing, China; School of Life Science; Anhui University; Hefei, Anhui China
| | - Guo Chen
- Tianjin Key Laboratory of Protein Science; College of Life Sciences; Nankai University; Tianjin, China
| | - Zhe Han
- Tianjin Key Laboratory of Protein Science; College of Life Sciences; Nankai University; Tianjin, China
| | - Li Huang
- State Key Laboratory of Biomembrane and Membrane Biotechnology; Institute of Zoology; Chinese Academy of Sciences; Beijing, China; University of Chinese Academy of Sciences; Beijing, China
| | - Chongzhuo Zhu
- State Key Laboratory of Biomembrane and Membrane Biotechnology; Institute of Zoology; Chinese Academy of Sciences; Beijing, China; University of Chinese Academy of Sciences; Beijing, China
| | - Xiaohui Wang
- State Key Laboratory of Biomembrane and Membrane Biotechnology; Institute of Zoology; Chinese Academy of Sciences; Beijing, China
| | - Haijing Jin
- State Key Laboratory of Biomembrane and Membrane Biotechnology; Institute of Zoology; Chinese Academy of Sciences; Beijing, China
| | - Jun Wang
- State Key Laboratory of Biomembrane and Membrane Biotechnology; Institute of Zoology; Chinese Academy of Sciences; Beijing, China
| | - Yushan Zhu
- Tianjin Key Laboratory of Protein Science; College of Life Sciences; Nankai University; Tianjin, China
| | - Lei Liu
- State Key Laboratory of Biomembrane and Membrane Biotechnology; Institute of Zoology; Chinese Academy of Sciences; Beijing, China; University of Chinese Academy of Sciences; Beijing, China
| | - Quan Chen
- State Key Laboratory of Biomembrane and Membrane Biotechnology; Institute of Zoology; Chinese Academy of Sciences; Beijing, China; University of Chinese Academy of Sciences; Beijing, China; Tianjin Key Laboratory of Protein Science; College of Life Sciences; Nankai University; Tianjin, China
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Affiliation(s)
- F. Liu
- State Key Laboratory of Rare Earth Resource UtilizationChangchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- Division of Green Chemistry and EngineeringKorea Research Institute of Chemical Technology, Daejeon 305-600, Korea
| | - D. Xue
- State Key Laboratory of Rare Earth Resource UtilizationChangchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
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Wang HT, Guo N, Zhao JM, Karthikeyan A, Xue D, Xue CC, Xu JY, Xu ZH, Gai JY, Xing H. Cloning and expression analysis of a stress-induced GmIMT1 gene in soybean (Glycine max). Genet Mol Res 2014; 13:806-18. [PMID: 24615045 DOI: 10.4238/2014.february.7.2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Here, we aimed to clone and identify the GmIMT1 gene related to the salt stress response in soybean. The full-length cDNA sequence of the GmIMT1 gene was amplified in soybean using degenerate primers of Mesembrythmum crystallium. To understand the stress response, the GmIMT1 gene was cloned and sequenced. Then, the expression vectors of the gene were constructed, and introduced into the model plant Arabidopsis thaliana through Agrobacterium mediated transformation, and the salt tolerance was analyzed in the transgenic plants. In addition, the expression patterns of GmIMT1 gene in soybean were analyzed. The expression was examined in different organs (roots, leaves, flower seeds, and stem) and under different stress conditions (drought, high salt, low temperature, salicylic acid, ethane, abscisic acid, and methyl jasmonate) by real-time fluorescent quantitative polymerase chain reaction analysis. The results showed that the root, leaves, and stems exhibited high level of GmIMT1 gene expression, whereas there was no expression in the seeds. In addition, the GmIMT1 gene expression was upregulated under all stress conditions. Overall, the results clearly indicate that GmIMT1 might be involved in multiple plant response pathways to the different environmental conditions. Furthermore transgenic plants exhibited higher salt-tolerance compared to wild type plants.
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Affiliation(s)
- H T Wang
- Soybean Research Institute/National Center for Soybean Improvement/National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - N Guo
- Soybean Research Institute/National Center for Soybean Improvement/National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - J M Zhao
- Soybean Research Institute/National Center for Soybean Improvement/National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - A Karthikeyan
- Soybean Research Institute/National Center for Soybean Improvement/National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - D Xue
- Soybean Research Institute/National Center for Soybean Improvement/National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - C C Xue
- Soybean Research Institute/National Center for Soybean Improvement/National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - J Y Xu
- Soybean Research Institute/National Center for Soybean Improvement/National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Z H Xu
- Soybean Research Institute/National Center for Soybean Improvement/National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - J Y Gai
- Soybean Research Institute/National Center for Soybean Improvement/National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - H Xing
- Soybean Research Institute/National Center for Soybean Improvement/National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
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Yuan LJ, Xue D, Duan YY, Cao TS, Yang HG, Zhou N. Carotid arterial intima–media thickness and arterial stiffness in pre-eclampsia: analysis with a radiofrequency ultrasound technique. Ultrasound Obstet Gynecol 2013; 42:644-652. [PMID: 23335074 DOI: 10.1002/uog.12409] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Revised: 12/24/2012] [Accepted: 01/04/2013] [Indexed: 06/01/2023]
Abstract
OBJECTIVE Whether arterial elasticity is reduced in preeclampsia has been investigated only rarely. This study aimed to characterize in vivo the carotid arterial intima–media thickness (IMT) and mechanical properties in women with pre-eclampsia by employing a radiofrequency ultrasound technique. METHODS We included 22 late-onset pre-eclamptic pregnant women and 28 normotensive pregnant women who were matched for age (29 ± 6 vs. 27 ± 3, P=0.09) and gestational age (36.0 ± 3.2 vs. 35.8 ± 2.4 weeks, P=0.802). All women were nulliparous with singleton pregnancy. The pre-eclamptic women had a significantly higher arterial pressure than did the normotensive women (P<0.0001). All women underwent right common carotid arterial measurements with an ultrasound machine equipped with automatic Quality IMT (QIMT) and Quality Arterial Stiffness (QAS) capability. At follow-up examination 18 months after parturition, measurements were repeated in 10 of the pre-eclamptic women and 11 of the normotensive women. RESULTS In pre-eclamptic compared with normotensive pregnancy, carotid arterial IMT (459 ± 95 vs. 351 ± 85 μm, P=0.0001), internal diameter (7.8 ± 0.5 vs. 7.2 ± 0.4 mm, P<0.0001), pulse wave velocity (7.1 ± 1.7 vs. 6.0 ± 1.5 m/s, P=0.007), augmentation index (7.9 ± 9.2 vs. −5.0 ± 5.6%, P<0.0001) and arterial wall tension (55.0 ± 6.5 vs. 38.6 ± 4.9 mmHg/cm, P<0.0001) were significantly greater, and the distensibility coefficient (0.020 ± 0.009 vs. 0.029 ± 0.011 1/kPa, P=0.006) was significantly smaller, remaining so after adjusting for body mass index and carotid arterial pressure. Eighteen months after parturition, carotid arterial internal diameter, pressure and wall tension remained greater in the pre-eclamptic group. CONCLUSION Carotid arterial remodeling, including changes in arterial internal diameter and wall thickness, and arterial stiffening occur in pre-eclampsia but this may reverse, to some extent, postpartum. QIMT and QAS techniques together could provide a comprehensive assessment of carotid arterial remodeling.
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Xue D, He X, Zhou C, Xu X, Xu R, Xu N. Correlation between CD14+CD16++ monocytes in peripheral blood and hypertriglyceridemia after allograft renal transplantation. Transplant Proc 2013; 45:3279-83. [PMID: 24182800 DOI: 10.1016/j.transproceed.2013.08.022] [Citation(s) in RCA: 2] [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] [Received: 05/16/2013] [Revised: 07/15/2013] [Accepted: 08/06/2013] [Indexed: 10/26/2022]
Abstract
BACKGROUND Cardio-cerebrovascular diseases are key factors causing recipient the death after kidney transplantation (KT). Hypertriglyceridemia (HTG), a complication commonly occurring among KT patients, is a major risk factor for cardio-cerebrovascular diseases. The objective of this study was to examine the correlation between peripheral CD14+CD16++ monocytes in KT patients and blood lipids as well as factors affecting hyperglycemia, seeking to understand mechanisms of inflammatory immune reactions. METHODS KT patients (n = 60) were divided into subjects with HTG (n = 35) versus without HTG (n = 25). A cohort of healthy participants (55 cases) was divided into the cases without (n = 30) versus with HTG (n = 25). The proportion of peripheral CD14+CD16 ++ monocytes was determined using flow cytometry and hematology, and biochemical indicators were measured by conventional methods. We correlated HTG with these indicators. RESULTS The proportion of peripheral blood CD14+CD16++ monocytes among the renal transplant group was significantly lower (P < .05) than that of normal controls. The expression of CD14+CD16++ monocytes among transplant recipients positively correlated with triglycerides (R = 0.449 and R = 0.008, respectively). CONCLUSION CD14+CD16++ mononcytes in peripheral blood may represent an independent risk factor for HTG after KT.
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Affiliation(s)
- D Xue
- Department of Urology, Third Affiliated Hospital, Suzhou University, Changzhou, China, and Lund Universities, Lund, Sweden
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Rao G, Wang H, Li B, Huang L, Xue D, Wang X, Jin H, Wang J, Zhu Y, Lu Y, Du L, Chen Q. Reciprocal interactions between tumor-associated macrophages and CD44-positive cancer cells via osteopontin/CD44 promote tumorigenicity in colorectal cancer. Clin Cancer Res 2012; 19:785-97. [PMID: 23251004 DOI: 10.1158/1078-0432.ccr-12-2788] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE CD44 is of functional importance for tumor initiation and progression in colorectal cancer, but how this molecule benefits cancer cells from the tumor microenvironment, especially tumor-associated macrophages (TAM), remains poorly defined. EXPERIMENTAL DESIGN In vivo tumorigenic assays were conducted to assess the role of murine TAMs in the tumorigenesis of human colorectal cancer cells. Both in vitro and in vivo osteopontin (OPN) expression levels in TAMs were examined by immunohistochemistry, quantitative PCR, and Western blotting. Soft agar colony formation assays were used to estimate the clonogenicity of colorectal cancer cells that had received different treatments. The relationships between the expression levels of OPN, CD44v6, and CD68 and clinical prognosis were evaluated by tissue microarray analysis. RESULTS We found that macrophages, when coinjected or cocultured with CD44-positive colorectal cancer cells, were able to produce higher levels of OPN, which in turn facilitated the tumorigenicity and clonogenicity of the colorectal cancer cells. The knockdown of CD44 or treatment with blocking antibodies to CD44 attenuated OPN secretion. OPN, through binding to its receptor CD44, activated c-jun-NH(2)-kinase signaling and promoted the clonogenicity of colorectal cancer cells. Moreover, tissue microarray data have shown that OPN expression, in combination with CD44v6, has a negative correlation with colorectal cancer patient survival. CONCLUSIONS These results suggest that the OPN-CD44 interaction is important for colorectal cancer progression and could serve as a potential therapeutic target for the treatment of colorectal cancer.
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Affiliation(s)
- Guanhua Rao
- College of Life Sciences, Nankai University, Tianjin, China
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Zhou P, Xue D, Wang T, Tang ZL, Zhang SK, Wang JP, Mao PP, Xi YQ, Wu R, Shi R. Survey on the function, structure and operation of hospital ethics committees in Shanghai. J Med Ethics 2009; 35:512-516. [PMID: 19644011 DOI: 10.1136/jme.2008.028340] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE The objectives of this study are to understand the current functions, structure and operation of hospital ethics committees (HECs) in Shanghai and to facilitate their improvement. METHODS (1) A questionnaire survey, (2) interviews with secretaries and (3) on-site document reviews of HECs in Shanghai were used in the study, which surveyed 33 hospitals. RESULTS In Shanghai, 57.56% of the surveyed hospitals established HECs from 1998 to 2005. Most HECs used bioethical review of research involving human subjects as well as bioethical review or consultation regarding medical care services and administrative decision- making. Of the surveyed HECs, 14.3% did not provide any formal bioethical training to the HECs' members and many HECs had no standard operating procedures. Some HECs had no clear definition of what was "conflict of interest" that should be considered by the HECs, while 44.4% of the HECs did not perform continuing review. DISCUSSION After the issues of related national regulations, more and more hospitals established HECs in Shanghai, but the functions of HECs need to be further developed and formal training on bioethics should be provided to HEC members. To assure the independence and good performance of HECs, the conflict of interest procedure, the standard operating procedures and bioethical review should be improved. CONCLUSION HECs in Shanghai had developed in the preceding 10 years and they played great roles in protecting the rights and welfare of human subjects and patients; some areas need improvement.
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Affiliation(s)
- P Zhou
- Fu Dan University, Shanghai, People's Republic of China
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Shen L, Shui Y, Wang X, Sheng L, Yang Z, Xue D, Wei Q. EGFR and HER2 expression in primary cervical cancers and corresponding lymph node metastases: implications for targeted radiotherapy. BMC Cancer 2008; 8:232. [PMID: 18700025 PMCID: PMC2519090 DOI: 10.1186/1471-2407-8-232] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2008] [Accepted: 08/12/2008] [Indexed: 11/24/2022] Open
Abstract
Background Proteins overexpressed on the surface of tumor cells can be selectively targeted. Epidermal growth factor receptor (EGFR) and human epidermal growth factor receptor 2 (HER2) are among the most often targeted proteins. The level and stability of expression in both primary tumors and corresponding metastases is crucial in the assessment of a receptor as target for imaging in nuclear medicine and for various forms of therapy. So far, the expression of EGFR and HER2 has only been determined in primary cervical cancers, and we have not found published data regarding the receptor status in corresponding metastatic lesions. The goal of this study was to evaluate whether any of these receptors are suitable as target for clinical diagnosis and therapy. Methods Expression of EGFR and HER2 was investigated immunohistochemically in both lymph node metastases and corresponding primary cervical cancers (n = 53). HER2 and EGFR expression was scored using HercepTest criteria (0, 1+, 2+ or 3+). Results EGFR overexpression (2+ or 3+) was found in 64% (35/53) of the primary cervical tumors and 60% (32/53) of the corresponding lymph node metastases. There was a good concordance between the primary tumors and the paired metastases regarding EGFR expression. Only four patients who had 2+ or 3+ in the primary tumors changed to 0 or 1+ in lymph node metastases, and another two cases changed the other way around. None of the primary tumors or the lymph node metastases expressed HER2 protein. Conclusion The EGFR expression seems to be common and stable during cervical cancer metastasis, which is encouraging for testing of EGFR targeted radiotherapy. HER2 appears to be of poor interest as a potential target in the treatment of cervical cancer.
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Affiliation(s)
- Li Shen
- Department of Radiation Oncology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, PR China.
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Tamura R, Takahashi HK, Xue D, Kubo S, Saito S, Nishibori M, Iwagaki H, Tanaka N. Enhanced effects of combined bu-zhong-yi-qi-tang (TJ-41) and interleukin-18 on the production of tumour necrosis factor-alpha and interferon-gamma in human peripheral blood mononuclear cells. J Int Med Res 2004; 32:25-32. [PMID: 14997702 DOI: 10.1177/147323000403200104] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Co-stimulatory molecules play important roles in immune responses. We investigated the effect of Bu-Zhong-Yi-Qi-Tang (TJ-41) on the expression of intercellular adhesion molecule-1 (ICAM-1), B7.1 and B7.2 by peripheral blood mononuclear cells stimulated by interleukin-18 (IL-18) using fluorescence-activated cell sorter analysis. TJ-41 increased IL-18-induced ICAM-1 and B7.2 expression, resulting in enhanced production of tumour necrosis factor-alpha and interferon-gamma. These results suggest that TJ-41 enhances IL-18-induced cell-mediated immunity and may enhance host defence mechanisms against pathogens.
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Affiliation(s)
- R Tamura
- Department of Gastroenterological Surgery, Transplant and Surgical Oncology, Department of Pharmacology, Okayama University Graduate School of Medicine and Dentistry, Okayama, Japan
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Chang Y, Cortes C, Brink C, Polony B, Vincent P, Xue D, Wilkie D, McNabola A, Carter C, Elting J. 148 BAY 57-9352: an inhibitor of VEGFR-2 and PDGFR receptor tyrosine kinases that demonstrates broad anti-tumor activity as a single agent in preclinical models. EJC Suppl 2004. [DOI: 10.1016/s1359-6349(04)80156-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Debrus S, May M, Barycki J, Glowiak T, Barnes A, Ratajczak H, Xue D. Erratum to “Crystal structure, vibrational spectra and nonlinear optical properties of the orthoarsenic acid-tris-(hydroxymethyl)-aminomethane crystal” [J. Molstruc. 661–662 (2003) 595–601]. J Mol Struct 2004. [DOI: 10.1016/j.molstruc.2003.12.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Lei T, Liu Q, Li L, Zhang L, Shu K, Xue D. Preliminary study on the relationship between cAMP level and gsp expression in cultured human pituitary somatotrophinomas. J Tongji Med Univ 2002; 20:214-6. [PMID: 11215052 DOI: 10.1007/bf02886994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
In order to investigate the relationship between abnormal intracellular signal transduction and tumorgenesis of human pituitary somatotrophinomas, the effects of protein kinase A (PKA)-dependent growth hormone (GH) releasing hormone (GHRH) and protein kinase C (PKC)-dependent GH-releasing peptide (GHRP-6) on cAMP production were observed by using cell culture and biochemical methods, and the expression of the gsp oncogene was detected by using PCR and direct sequence assay methods in 11 patients with human pituitary somatotrophinomas. It was found that GHRP-6 exerted significant stimulatory effect on cAMP production by 2 gsp-positive tumors and no effect on the gsp-negative tumors. GHRP-6 could enhance the stimulation of cAMP production induced by GHRH in tumor without gsp oncogenes. It was suggested that both GHRH and GHRP-6 exert identical effects on human pituitary soamtotrophinomas, which was contributed to the cross-talk between the two intracellular signal transduction pathways in pituitary cells.
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Affiliation(s)
- T Lei
- Department of Neurosurgery, Tongji Hospital, Tongji Midical University, Wuhan 430030
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Abstract
Programmed cell death (apoptosis) is a tightly regulated process of cell disassembly in which dying cells and their nuclei shrink and fragment and the chromosomal DNA is degraded into internucleosomal repeats. Here we report the characterization of the cps-6 gene, which appears to function downstream of, or in parallel to, the cell-death protease CED-3 of Caenorhabditis elegans in the DNA degradation process during apoptosis. cps-6 encodes a homologue of human mitochondrial endonuclease G, and its protein product similarly localizes to mitochondria in C. elegans. Reduction of cps-6 activity caused by a genetic mutation or RNA-mediated interference (RNAi) affects normal DNA degradation, as revealed by increased staining in a TUNEL assay, and results in delayed appearance of cell corpses during development in C. elegans. This observation provides in vivo evidence that the DNA degradation process is important for proper progression of apoptosis. CPS-6 is the first mitochondrial protein identified to be involved in programmed cell death in C. elegans, underscoring the conserved and important role of mitochondria in the execution of apoptosis.
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Affiliation(s)
- J Parrish
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, Colorado 80309, USA
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Fadok VA, Xue D, Henson P. If phosphatidylserine is the death knell, a new phosphatidylserine-specific receptor is the bellringer. Cell Death Differ 2001; 8:582-7. [PMID: 11536008 DOI: 10.1038/sj.cdd.4400856] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2000] [Revised: 02/08/2001] [Accepted: 02/19/2001] [Indexed: 01/28/2023] Open
Abstract
Recognition of phosphatidylserine (PtdSer) is essential for engulfment of apoptotic cells by mammalian phagocytes. Engagement of a new phosphatidylserine-specific receptor (PtdSerR) appears to be necessary for uptake of apoptotic cells. Many other mammalian receptors have been described to function in the clearance of apoptotic cells. The emerging picture is that many of these receptors may provide the strong adhesion needed to increase the likelihood of contact between the PtdSerR and its phospholipid ligand, which is required for uptake. Furthermore, stimulation of this receptor on different types of phagocytes by apoptotic cells, PtdSer-containing liposomes or an IgM monoclonal anti-PtdSer antibody initiates release of TGFbeta, known to be involved in the anti-inflammatory effects of apoptotic cells. Although highly homologous genes exist in C. elegans and Drosophila melanogaster, their role in engulfment of apoptotic cells remains to be determined.
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Affiliation(s)
- V A Fadok
- Program in Cell Biology, Department of Pediatrics, National Jewish Medical and Research Center, Denver, Colorado, CO 80206, USA.
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Mukai H, Tanaka A, Fujii T, Zeng Y, Hong Y, Tang J, Guo S, Xue H, Sun Z, Zhou J, Xue D, Zhao J, Zhai G, Gu J, Zhai P. Regional characteristics of sulfur and lead isotope ratios in the atmosphere at several Chinese urban sites. Environ Sci Technol 2001; 35:1064-1071. [PMID: 11347915 DOI: 10.1021/es001399u] [Citation(s) in RCA: 137] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Sulfur and lead isotope ratios in the atmosphere were measured at several selected sites (Harbin, Changchun, Dalian, Waliguan, Shanghai, Nanjing, Guiyang) in China and Tsukuba (Japan), to reveal regional sources characteristics over Eastern Asia. Average S isotope ratios for SO2 and sulfate in the atmosphere in China were close to those of the coals used in each region, indicating a considerable contribution of coal combustion to the sulfur compounds in the atmosphere. Most northern cities had around 5% sulfur isotope ratio, while Guiyang, a southwestern city in China, showed a considerably lower sulfur isotope ratio (about -3%) because of the unusually light sulfur isotope ratio of coals in this region. These were considerably different from the value (-1.4%) for Tsukuba (Japan). Lead isotope ratios also suggested that coal combustion considerably contributed to atmospheric lead in some cases in China. At the same time, influences by the emission of Chinese lead ores were also observed in northern cities. Seasonal variations of both sulfur and lead isotope ratios indicated the existence of a certain amount of industrial sources other than coal combustion. In addition, fractionation effect between SO2 and sulfate showed a seasonal tendency (high in winter (0-6%) and low in summer (-1-3%)), suggesting the oxidation pathway of SO2 changed seasonally.
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Affiliation(s)
- H Mukai
- National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan.
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Abstract
The nematode Caenorhabditis elegans has been shown to be an excellent model organism with which to study the mechanisms of programmed cell death because of its powerful genetics and the ability to study cell death with single-cell resolution. In this chapter, we describe methods that are commonly used to examine various aspects of programmed cell death in C. elegans. These methods, in combination with genetic analyses, have helped identify and characterize many components of the C. elegans cell death pathway, illuminating the mechanisms by which these components affect programmed cell death.
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Affiliation(s)
- D Ledwich
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado at Boulder 80309-0437, USA
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Cheng Y, Lin H, Xue D, Li R, Wang K. Lanthanide ions induce hydrolysis of hemoglobin-bound 2,3-diphosphoglycerate (2,3-DPG), conformational changes of globin and bidirectional changes of 2,3-DPG-hemoglobin's oxygen affinity. Biochim Biophys Acta 2001; 1535:200-16. [PMID: 11342009 DOI: 10.1016/s0925-4439(00)00100-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
The changes in structure and function of 2,3-diphosphoglycerate-hemoglobin (2,3-DPG-Hb) induced by Ln(3+) binding were studied by spectroscopic methods. The binding of lanthanide cations to 2,3-DPG is prior to that to Hb. Ln(3+) binding causes the hydrolysis of either one from the two phosphomonoester bonds in 2,3-DPG non-specifically. The results using the ultrafiltration method indicate that Ln(3+) binding sites for Hb can be classified into three categories: i.e. positive cooperative sites (N(I)), non-cooperative strong sites (N(S)) and non-cooperative weak sites (N(W)) with binding constants in decreasing order: K(I)>K(S)>K(W). The total number of binding sites amounts to about 65 per Hb tetramer. Information on reaction kinetics was obtained from the change of intrinsic fluorescence in Hb monitored by stopped-flow fluorometry. Fluctuation of fluorescence dependent on Ln(3+) concentration and temperature was observed and can be attributed to the successive conformational changes induced by Ln(3+) binding. The results also reveal the bidirectional changes of the oxygen affinity of Hb in the dependence on Ln(3+) concentration. At the range of [Ln(3+)]/[Hb]<2, the marked increase of oxygen affinity (P(50) decrease) with the Ln(3+) concentration can be attributed to the hydrolysis of 2,3-DPG, while the slight rebound of oxygen affinity in higher Ln(3+) concentration can be interpreted by the transition to the T-state of the Hb tetramer induced by Ln(3+) binding. This was indicated by the changes in secondary structure characterized by the decrease of alpha-helix content.
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Affiliation(s)
- Y Cheng
- National Research Laboratories of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, People's Republic of China
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Liang Y, Quan X, Chen J, Chung JS, Sung JY, Chen S, Xue D, Zhao Y. Long-term results of ammonia removal and transformation by biofiltration. J Hazard Mater 2000; 80:259-269. [PMID: 11080582 DOI: 10.1016/s0304-3894(00)00314-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [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
In this paper, long-term (>8 month) results of ammonia removal in biofilters was studied. Compost was used as the biofilter medium and activated carbon as an added material. The ammonia removal was normally >95% at influent ammonia concentrations of 20-500ppmv. According to the test results, the influent ammonia concentration should be <200ppmv (0.1570g ammonia/kg media per day) so that the effluent concentration of ammonia is <1.0mg/m(3) (the emission standard of China), and the biofiltration system can achieve good long-term performance. In the biofiltration system utilized in this study, the shortest retention time that the system could attain was 0.532min. However, the retention time can be decreased further without decreasing the ammonia removal efficiency. Countercurrent flow is favorable, as it enhances the moisture retention ability of the media. In the bioreactors, ammonia can be converted into the nitrate. The bioreactors have a stratification phenomenon for ammonia removal over the biofiltration depth, which implies that different parts of the bioreactor play different roles in the ammonia removing process.
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Affiliation(s)
- Y Liang
- School of Environmental Science and Technology, Dalian University of Technology, Zhongshan Road 158-129, 116012, Dalian, PR China
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Parrish J, Metters H, Chen L, Xue D. Demonstration of the in vivo interaction of key cell death regulators by structure-based design of second-site suppressors. Proc Natl Acad Sci U S A 2000; 97:11916-21. [PMID: 11027303 PMCID: PMC17269 DOI: 10.1073/pnas.210391597] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Demonstrating in vivo interaction of two important biomolecules and the relevance of the interaction to a biological process have been difficult issues in biomedical research. Here, we report the use of a homology modeling approach to establish the significance of protein interactions in governing the activation of programmed cell death in Caenorhabditis elegans. A protein interaction cascade has been postulated to mediate activation of cell death in nematodes, in which the BH3-domain-containing (Bcl-2 homology region 3) protein EGL-1 binds the cell-death inhibitor CED-9 and induces release of the death-activating protein CED-4 from inhibitory CED-4/CED-9 complexes. We show here that an unusual gain-of-function mutation in ced-9 (substitution of glycine 169 to glutamate) that results in potent inhibition of most nematode cell deaths impairs the binding of EGL-1 to CED-9 and EGL-1-induced release of CED-4 from CED-4/CED-9 complexes. Based on a modeled EGL-1/CED-9 complex structure, we generated second-site compensatory mutations in EGL-1 that partially restore the binding of EGL-1 to CED-9(G169E) and EGL-1-induced release of CED-4 from CED-4/CED-9(G169E) complexes. Importantly, these mutations also significantly suppress the death-protective activity of CED-9(G169E) in vivo. These results establish that direct physical interaction between EGL-1 and CED-9 is essential for the release of CED-4 and the activation of cell death. The structure-based design of second-site suppressors via homology modeling should be widely applicable for probing important molecular interactions that are implicated in fundamental biological processes.
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Affiliation(s)
- J Parrish
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, CO 80309, USA
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