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Wang G, Fan JY, Zhang WJ, Hua CP, Chen CJ, Yan W, Ge HM, Jiao RH, Tan RX. Polyketides from mantis-associated fungus Daldinia eschscholzii IFB-TL01. Chem Biodivers 2016; 12:1349-55. [PMID: 26363879 DOI: 10.1002/cbdv.201400414] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Indexed: 11/05/2022]
Abstract
Three new polyketides, named daldinone F (1), nodulisporin G (2), and dalmanol C (3), together with five known compounds, 4-8, were isolated from cultures of Daldinia eschscholzii. The structures of the new compounds were elucidated by extensive NMR and MS analyses. Compound 1 showed moderate cytotoxic activity against SW480 cancer cells with an IC50 value of 9.59 μM, and its absolute configuration was determined by single crystal X-ray diffraction.
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Zhang M, Liu JM, Zhao JL, Li N, Chen RD, Xie KB, Zhang WJ, Feng KP, Yan Z, Wang N, Dai JG. Two new diterpenoids from the endophytic fungus Trichoderma sp. Xy24 isolated from mangrove plant Xylocarpus granatum. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.02.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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153
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Song J, Huang YF, Zhang WJ, Chen XF, Guo YM. Ocular diseases: immunological and molecular mechanisms. Int J Ophthalmol 2016; 9:780-8. [PMID: 27275439 DOI: 10.18240/ijo.2016.05.25] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 09/07/2015] [Indexed: 12/14/2022] Open
Abstract
Many factors, such as environmental, microbial and endogenous stress, antigen localization, can trigger the immunological events that affect the ending of the diverse spectrum of ocular disorders. Significant advances in understanding of immunological and molecular mechanisms have been researched to improve the diagnosis and therapy for patients with ocular inflammatory diseases. Some kinds of ocular diseases are inadequately responsive to current medications; therefore, immunotherapy may be a potential choice as an alternative or adjunctive treatment, even in the prophylactic setting. This article first provides an overview of the immunological and molecular mechanisms concerning several typical and common ocular diseases; second, the functions of immunological roles in some of systemic autoimmunity will be discussed; third, we will provide a summary of the mechanisms that dictate immune cell trafficking to ocular local microenvironment in response to inflammation.
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Zhang WJ, Guo P, Liu M, Yang BL, Wang JH, Jiang J. Isolation, identification, and optimal cultivation of a marine bacterium antagonistic to Magnaporthe grisea. GENETICS AND MOLECULAR RESEARCH 2016; 15:gmr8646. [PMID: 27323038 DOI: 10.4238/gmr.15028646] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In this paper, a plate confrontation method was used to isolate bacteria antagonistic to the rice blast fungus Magnaporthe grisea from samples collected from China's Dalian Bay. The antagonist strain LM-031 was obtained. We studied this strain's morphological, physiological and biochemical characteristics and analyzed its 16S rDNA sequence. We compared the effects of different culture conditions (type of media, carbon and nitrogen source, incubation temperature and time, and initial pH value) on the inhibitory effect against M. grisea. Strain LM-031 was preliminarily identified as Bacillus pumilus and was found to strongly inhibit M. grisea, especially when grown on BPY medium at an initial pH 7 for 72 h at 30°C. The optimum carbon and nitrogen sources for growth were lactose and peptone, respectively. The most suitable carbon and nitrogen sources for production of active substances were glucose and NH4Cl, respectively. Our results show that development and utilization of B. pumilus LM-031 has great potential for biological control of M. grisea.
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Peng C, Wang H, Zhang WJ, Jie SH, Tong QX, Lu MJ, Yang DL. Inhibitory effect of miR-125b on hepatitis C virus core protein-induced TLR2/MyD88 signaling in THP-1 cells. World J Gastroenterol 2016; 22:4354-4361. [PMID: 27158204 PMCID: PMC4853693 DOI: 10.3748/wjg.v22.i17.4354] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 02/22/2016] [Accepted: 03/14/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the role of miR-125b in regulating monocyte immune responses induced by hepatitis C virus (HCV) core protein.
METHODS: Monocytic THP-1 cells were treated with various concentrations of recombinant HCV core protein, and cytokines and miR-125b expression in these cells were analyzed. The requirement of Toll-like receptor 2 (TLR2) or MyD88 gene for HCV core protein-induced immune responses was determined by the transfection of THP-1 cells with gene knockdown vectors expressing either TLR2 siRNA or MyD88 siRNA. The effect of miR-125b overexpression on TLR2/MyD88 signaling was examined by transfecting THP-1 cells with miR-125b mimic RNA oligos.
RESULTS: In response to HCV core protein stimulation, cytokine production was up-regulated and miR-125b expression was down-regulated in THP-1 cells. The modulatory effect of HCV core protein on cellular events was dose-dependent and required functional TLR2 or MyD88 gene. Forced miR-125b expression abolished the HCV core protein-induced enhancement of tumor necrosis factor-α, interleukin (IL)-6, and IL-10 expression by 66%, 54%, and 66%, respectively (P < 0.001), by inhibiting MyD88-mediated signaling, including phosphorylation of NF-κBp65, ERK, and P38.
CONCLUSION: The inverse correlation between miR-125b and cytokine expression after HCV core challenge suggests that miR-125b may negatively regulate HCV-induced immune responses by targeting TLR2/MyD88 signaling in monocytes.
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Zhang WJ, Sun JJ. [Isolation, culture and identification of human adipose-derived mesenchymal stem cells]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2016; 30:726-729. [PMID: 29771023 DOI: 10.13201/j.issn.1001-1781.2016.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Indexed: 11/12/2022]
Abstract
Objective: To establish isolation and culture methods of human adipose derived mesenchymal stem cells(hADSCs) in vitro and to investigate the basic biological characteristics of hADSCs as seed cells involved in repair of epithelium during temporal bone surgery.Method:Human adipose tissue was collected after liposuction surgery from the cosmetic and plastic surgery center,and then was digested with 0.3% collagenase Ⅰ. hADSCs were isolated and adherent cultured. Multilineage differentiation potential of hADSCs were determined by differentiating cells into adipocytes and osteoblast. Phenotypes of cells were detected by flow cytometer, and cell growth curve was observed by MTT. Result:Obtained hADSCs were similar size, spindle-shaped fibroblasts-liked cells and had differentiation potential to adipocytes and osteoblast. Flow cytometry showed that cells were highly positive for CD105, CD90, CD29 and weakly positive for CD34 and CD45. MTT exhibited that hADSCs had a exponential growth phase. Conclusion:Isolated stem cells from human adipose tissue show the typical characterization of hADSCs, and can be used as seed cells involved in repair of epithelium during temporal bone surgery.
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Wang WX, Zhang WJ, Yang KX, Tang X, Peng ZL. Cervical Metastasis from Renal Cell Carcinoma. Chin Med J (Engl) 2016; 129:1005-6. [PMID: 27064049 PMCID: PMC4831518 DOI: 10.4103/0366-6999.179790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Liu Y, Wu N, Bi GC, Zhang DS, Zheng R, Liang Y, Zhang WJ, Li XM, Fang Y. [Correlation analysis between 18F-FDG uptake features and the prognosis in patients with pathologic stage Ⅰ lung adenocarcinoma]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 2016; 38:263-9. [PMID: 27087372 DOI: 10.3760/cma.j.issn.0253-3766.2016.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To analyze the (18)F-FDG uptake features and the correlation between (18)F-FDG uptake and the prognosis in patients with pathologic stageⅠlung adenocarcinoma. METHODS One hundred and seventeen patients with stageⅠlung adenocarcinoma proved by surgery, who underwent a preoperative (18)F-FDG PET-CT, were studied retrospectively. The tumors' SUVmax in different groups of clinicopathologic factors were compared. The correlations between the SUVmax and clinicopathologic factors were analyzed using Spearman rank correlation. The ROC was plotted to estimate the most discriminative cut-off point for SUVmax in predicting the recurrence or progression of tumor. The progression-free survival (PFS) in different clinicopathologic groups were estimated using the Kaplan-Meier method and Log-rank test. RESULTS The SUVmax of pathologic stageⅠlung adenocarcinomas were significantly different in different groups of gender, tumor size, density, tumor differentiation grade and T staging, respectively (P<0.05 for all). Patients with a larger tumor size, a higher proportion of solid component, poorer grade of tumor differentiation had a higher SUVmax. The T1b group had a higher SUVmax than T1a and T2a groups. The male group had a higher SUVmax than the female group. The SUVmax was positively correlated with the size of the adenocarcinomas (P<0.01), and was negatively correlated with both the density and tumor differentiation grade (P<0.01). But there was no correlation between SUVmax and the T stage (P>0.05). The patients with an SUVmax of <3.0 had a much better PFS (75.1±3.0 month)than those with an SUVmax of ≥3.0 (52.7±5.9 month)(P<0.01). The tumor with a poorer differentiation grade was associated with reduced PFS (45.7±5.4 months) compared with those with well differentiated tumor (76.7±4.2 month)(P<0.05). The PFS showed no statistically significant differences in different gender, age, smoking history, tumor size, density and T staging groups (P>0.05). CONCLUSIONS (18)F-FDG uptake is correlated with the tumor size, density, and differentiation grade, and has a prognostic value for predicting the PFS in the patients with pathologic stageⅠ lung-adenocarcinoma. Patients with an SUVmax of <3.0 have a much better PFS than those with an SUVmax of ≥3.0.
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Zhang WJ, Wang T, Xiao Y, Yin Z, Kang Y. [Copper regulation of hypoxia-inducible factor 1]. SHENG LI KE XUE JIN ZHAN [PROGRESS IN PHYSIOLOGY] 2016; 47:119-123. [PMID: 29671995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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160
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Yuan J, Wang P, Hou GL, Feng G, Zhang WJ, Xu XL, Xu HG, Yang J, Zheng WJ. Structural Evolution and Electronic Properties of VnC20/– and VnC40/– (n = 1–6) Clusters: Insights from Photoelectron Spectroscopy and Theoretical Calculations. J Phys Chem A 2016; 120:1520-8. [DOI: 10.1021/acs.jpca.6b00241] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zong LJ, Zhang YZ, Yang XS, Jiang J, Cui BX, Qiao YB, Li L, Jiang K, Zhang WJ, Kong BH, Shen K. Evaluation of several screening approaches for detection of cervical lesions in rural Shandong, China. Asian Pac J Cancer Prev 2016; 16:1907-12. [PMID: 25773843 DOI: 10.7314/apjcp.2015.16.5.1907] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
PURPOSE The study was designed to: (1) investigate the prevalence of high-risk human papillomavirus (HR- HPV) infection and cervical neoplasia; and (2) evaluate clinical performance of visual inspection with acetic acid/ Lugol's iodine (VIA /VILI), Pap smear, high-risk human papillomavirus (HR-HPV) DNA test for detecting cervical intraepithelial neoplasia grade 2 or worse (CIN2+) and (3) explore appropriate screening approach in rural areas of Shandong Province. MATERIALS AND METHODS A total of 3,763 eligible women from Yiyuan County in Yimeng mountainous areas of rural Shandong, China, were enrolled and underwent Pap smear, HR-HPV DNA testing by Hybrid Capture 2 (HC2), and VIA /VILI tests. Women positive in any test were referred to colposcopy and biopsy as indicated. RESULTS The prevalence of HR-HPV infection among all enrolled women was 11.1% and that in healthy women was 9.9%. In total 33 cases of CIN1, 16 cases of CIN2, 6 cases of CIN3 but none of cervical cancer were detected and the crude prevalence of CIN2+ was 0.58%. For detecting CIN2+, the sensitivity of HR-HPV DNA testing, VIA/VILI, Pap smear was 90.9%, 77.3%, 81.8%, respectively. Pap smear had the best specificity of 98.2%, followed by HR-HPV DNA testing with specificity of 89.4%, VIA/VILI had the lowest specificity of 81.2%. Colposcopy referral rate of HR-HPV DNA testing, VIA/VILI, Pap smear was 11.1%, 18.5%, 2.3%, respectively. CONCLUSIONS Our results suggest that HR-HPV DNA testing alone might be appropriate for primary cervical cancer screening in rural low-resource areas of Shandong Province, China.
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Wei ML, Fan JT, Yu PH, Zhang WJ, Xu H, Liu Y. Abdominal wall mixed malignant germ cell tumor: a case report and review of literature. EUR J GYNAECOL ONCOL 2016; 37:747-749. [PMID: 29787026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Abdominal wall mass is not uncommon in clinic, but it is very rare that germ cell tumors (GCTs) arise in the abdominal wall. The authors review the case of a 34-year-old female with abdominal wall mixed malignant GCT composed of embryonal carcinoma and teratoma and combine the relative literature to explain why GCTs originate from anterior abdominal wall.
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Wang JX, Xu J, Han YF, Zhu YB, Zhang WJ. Diagnostic values of microRNA-31 in peripheral blood mononuclear cells for pediatric pulmonary tuberculosis in Chinese patients. GENETICS AND MOLECULAR RESEARCH 2015; 14:17235-43. [PMID: 26681217 DOI: 10.4238/2015.december.16.23] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We investigated the diagnostic values of microRNA-31 in peripheral blood mononuclear cells (PBMCs) for pediatric pulmonary tuberculosis in Chinese patients. Sixty-five children with TB were selected for this study, which was conducted at the Department of Infectious Diseases People's Hospital of Laiwu City between December 2013 and December 2014. Sixty healthy children, selected in parallel, served as the control group. Real-time PCR was used to detect miR-31 expression in PBMCs. Serum levels of IL-6, TNF-α, NF-κB, and IFN-γ was detected by ELISA. ROC curve was employed to evaluate the diagnostic value of miR-31 in pediatric TB. Results show that expression of miRNA-31 in pediatric TB patients was significantly lower than that in normal children (0.48 ± 0.15 vs 1.23 ± 0.36, P < 0.05). By contrast, serum levels of the innate immune response cytokines, IL-6, TNF-α, NF-κB, and IFN-γ, were significantly higher in pediatric TB patients compared with normal children (P < 0.05). Furthermore, miRNA-31 expression was negatively correlated with serum levels of IL-6 (t = 69.91, P < 0.001), TNF-α (t = 10.96, P < 0.001), NF-κB (t = 39.94, P < 0.001), and IFN -γ (t = 37.94, P < 0.001). The cut-off threshold of miR-31 for pediatric TB diagnosis is 0.835 with a sensitivity of 98.5% and a specificity of 86.7%. Therefore, miR-31 has the potential to be a diagnostic marker in pediatric TB patients.
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Liu XP, Zhang WJ, Wang XY, Cai YJ, Chang JG. Root-soil air gap and resistance to water flow at the soil-root interface of Robinia pseudoacacia. TREE PHYSIOLOGY 2015; 35:1343-1355. [PMID: 26358048 DOI: 10.1093/treephys/tpv075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 07/21/2015] [Indexed: 06/05/2023]
Abstract
During periods of water deficit, growing roots may shrink, retaining only partial contact with the soil. In this study, known mathematical models were used to calculate the root-soil air gap and water flow resistance at the soil-root interface, respectively, of Robinia pseudoacacia L. under different water conditions. Using a digital camera, the root-soil air gap of R. pseudoacacia was investigated in a root growth chamber; this root-soil air gap and the model-inferred water flow resistance at the soil-root interface were compared with predictions based on a separate outdoor experiment. The results indicated progressively greater root shrinkage and loss of root-soil contact with decreasing soil water potential. The average widths of the root-soil air gap for R. pseudoacacia in open fields and in the root growth chamber were 0.24 and 0.39 mm, respectively. The resistance to water flow at the soil-root interface in both environments increased with decreasing soil water potential. Stepwise regression analysis demonstrated that soil water potential and soil temperature were the best predictors of variation in the root-soil air gap. A combination of soil water potential, soil temperature, root-air water potential difference and soil-root water potential difference best predicted the resistance to water flow at the soil-root interface.
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Nie CX, Zhang WJ, Ge WX, Liu YF, Wang YQ, Liu JC. Effect of Cottonseed Meal Fermented with Yeast on the Lipid-related Gene Expression in Broiler Chickens. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2015. [DOI: 10.1590/1516-635xspecialissuenutrition-poultryfeedingadditives057-064] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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He YT, Zhang WJ, Xu MG, Tong XG, Sun FX, Wang JZ, Huang SM, Zhu P, He XH. Long-term combined chemical and manure fertilizations increase soil organic carbon and total nitrogen in aggregate fractions at three typical cropland soils in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 532:635-44. [PMID: 26119378 DOI: 10.1016/j.scitotenv.2015.06.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Revised: 05/26/2015] [Accepted: 06/02/2015] [Indexed: 05/28/2023]
Abstract
Soil organic carbon (SOC), total nitrogen (TN), microbial biomass carbon (MBC) and nitrogen (MBN) are important factors of soil fertility. However, effects of the combined chemical fertilizer and organic manure or straw on these factors and their relationships are less addressed under long-term fertilizations. This study addressed changes in SOC, TN, MBC and MBN at 0-20 cm soil depth under three 17 years (September 1990-September 2007) long-term fertilization croplands along a heat and water gradient in China. Four soil physical fractions (coarse free and fine free particulate organic C, cfPOC and ffPOC; intra-microaggregate POC, iPOC; and mineral associated organic C, MOC) were examined under five fertilizations: unfertilized control, chemical nitrogen (N), phosphorus (P) and potassium (K) (NPK), NPK plus straw (NPKS, hereafter straw return), and NPK plus manure (NPKM and 1.5NPKM, hereafter manure). Compared with Control, manure significantly increased all tested parameters. SOC and TN in fractions distributed as MOC > iPOC > cfPOC > ffPOC with the highest increase in cfPOC (329.3%) and cfPTN (431.1%), and the lowest in MOC (40.8%) and MTN (45.4%) under manure. SOC significantly positively correlated with MBC, cfPOC, ffPOC, iPOC and MOC (R(2) = 0.51-0.84, P < 0.01), while TN with cfPTN, ffPTN, iPTN and MTN (R(2) = 0.45-0.79, P < 0.01), but not with MBN, respectively. Principal component analyses explained 86.9-91.2% variance of SOC, TN, MBC, MBN, SOC and TN in each fraction. Our results demonstrated that cfPOC was a sensitive SOC indicator and manure addition was the best fertilization for improving soil fertility while straw return should take into account climate factors in Chinese croplands.
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Li JC, Zhu N, Zhu JX, Zhang WJ, Zhang HM, Wang QQ, Wu XX, Wang X, Zhang J, Hao JF. Self-Assembled Cubic Liquid Crystalline Nanoparticles for Transdermal Delivery of Paeonol. Med Sci Monit 2015; 21:3298-310. [PMID: 26517086 PMCID: PMC4632989 DOI: 10.12659/msm.894484] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Background The aim of this study was to optimize the preparation method for self-assembled glyceryl monoolein-based cubosomes containing paeonol and to characterize the properties of this transdermal delivery system to improve the drug penetration ability in the skin. Material/Methods In this study, the cubic liquid crystalline nanoparticles loaded with paeonol were prepared by fragmentation of glyceryl monoolein (GMO)/poloxamer 407 bulk cubic gel by high-pressure homogenization. We evaluated the Zeta potential of these promising skin-targeting drug-delivery systems using the Malvern Zeta sizer examination, and various microscopies and differential scanning calorimetry were also used for property investigation. Stimulating studies were evaluated based on the skin irritation reaction score standard and the skin stimulus intensity evaluation standard for paeonol cubosomes when compared with commercial paeonol ointment. In vitro tests were performed on excised rat skins in an improved Franz diffusion apparatus. The amount of paeonol over time in the in vitro penetration and retention experiments both was determined quantitatively by HPLC. Results Stimulating studies were compared with the commercial ointment which indicated that the paeonol cubic liquid crystalline nanoparticles could reduce the irritation in the skin stimulating test. Thus, based on the attractive characteristics of the cubic crystal system of paeonol, we will further exploit the cosmetic features in the future studies. Conclusions The transdermal delivery system of paeonol with low-irritation based on the self-assembled cubic liquid crystalline nanoparticles prepared in this study might be a promising system of good tropical preparation for skin application.
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Li JC, Zhang WJ, Zhu JX, Zhu N, Zhang HM, Wang X, Zhang J, Wang QQ. Preparation and brain delivery of nasal solid lipid nanoparticles of quetiapine fumarate in situ gel in rat model of schizophrenia. Int J Clin Exp Med 2015; 8:17590-17600. [PMID: 26770349 PMCID: PMC4694249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 10/06/2015] [Indexed: 06/05/2023]
Abstract
To investigate the brain delivery in rat by nasal Quetiapine fumarate (QF) loaded with solid lipid nanoparticles in situ gel (QF-SLN-gel). QF-SLN-gel was prepared through micro-emulsion technique. The rat model of schizophrenia was established by intraperitoneal injection of (+)-MK-801, evaluated by stereotypic behavior, Mori's Water Maze (MWM) test and hematoxylin and eosin (HE) staining of hippocampus. The animals were administrated with QF via oral, nasal or tail vein approach and the concentration of QF in blood and brain was determined using high performance liquid chromatography (HPLC). The QF-SLN-gel was even and transparent, having size of 117.8±2.67 d.nm, potential of 57.2±0.24 mV and EF of 97.6±0.58%. After administration of QF-SLN-gel, the concentration of QF in blood and brain of rats in nasal QF-SLN-gel group was similar with that of rats in tail vein QF group, but significantly higher than that of rats in oral QF group. The hippocampal morphology changes induced by (+)-MK-801 were ameliorated by QF, with advantage of nasal QF-SLN-gel over tail vein QF. The nasal QF-SLN-gel had stable and good brain delivery and could ameliorate the damages in rat model of schizophrenia induced by (+)-MK-801.
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Zhao P, Wang Y, Zhang Y, Guo T, Zhang Z, Zhang WJ, Zhang XG, Ashraf MA. The extraction of different proteins in selenium enriched peanuts and their antioxidant properties. Saudi J Biol Sci 2015; 23:353-7. [PMID: 27081360 PMCID: PMC4818322 DOI: 10.1016/j.sjbs.2015.08.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 08/13/2015] [Accepted: 08/16/2015] [Indexed: 11/30/2022] Open
Abstract
In this study, the selenium enriched peanuts and the different solubility proteins extracted from them were investigated. The dried defatted selenium enriched peanuts (SeP) powder (0.3147 μg/g) had a 2.5-fold higher mean total selenium concentration than general peanuts (GP) power (0.1233 μg/g). The SeP had higher concentration of selenium, manganese and zinc than that of GP, but less calcium. The rate of extraction of protein was 23.39% for peanuts and alkali soluble protein was the main component of protein in SeP, which accounted for 92.82% of total soluble protein and combined selenium was 77.33% of total selenium protein. In different forms of proteins from SeP, the WSePr due to higher concentration of selenium had higher DPPH free-radical scavenging activity, higher reducing activity and longer induction time than other proteins.
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Zhang WJ, Hou GL, Wang P, Xu HG, Feng G, Xu XL, Zheng WJ. Microsolvation of sodium acetate in water: Anion photoelectron spectroscopy and ab initio calculations. J Chem Phys 2015; 143:054302. [DOI: 10.1063/1.4927668] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Wang L, Du F, Zhang HM, Zhang WJ, Wang HX. Changes in circulating endothelial progenitor cells predict responses of multiple myeloma patients to treatment with bortezomib and dexamethasone. ACTA ACUST UNITED AC 2015; 48:736-42. [PMID: 26108099 PMCID: PMC4541694 DOI: 10.1590/1414-431x20154558] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 03/20/2015] [Indexed: 01/21/2023]
Abstract
Four cycles of chemotherapy are required to assess responses of multiple myeloma (MM)
patients. We investigated whether circulating endothelial progenitor cells (cEPCs)
could be a biomarker for predicting patient response in the first cycle of
chemotherapy with bortezomib and dexamethasone, so patients might avoid ineffective
and costly treatments and reduce exposure to unwanted side effects. We measured cEPCs
and stromal cell-derived factor-1α (SDF-1α) in 46 MM patients in the first cycle of
treatment with bortezomib and dexamethasone, and investigated clinical relevance
based on patient response after four 21-day cycles. The mononuclear cell fraction was
analyzed for cEPC by FACS analysis, and SDF-1α was analyzed by ELISA. The study
population was divided into 3 groups according to the response to chemotherapy: good
responders (n=16), common responders (n=12), and non-responders (n=18). There were no
significant differences among these groups at baseline day 1 (P>0.05). cEPC levels
decreased slightly at day 21 (8.2±3.3 cEPCs/μL) vs day 1 (8.4±2.9
cEPCs/μL) in good responders (P>0.05). In contrast, cEPC levels increased
significantly in the other two groups (P<0.05). SDF-1α changes were closely
related to changes in cEPCs. These findings indicate that change in cEPCs at day 21
in the first cycle might be considered a noninvasive biomarker for predicting a later
response, and extent of change could help decide whether to continue this costly
chemotherapy. cEPCs and the SDF-1α/CXCR4 axis are potential therapeutic targets for
improved response and outcomes in MM patients.
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Song YN, Zhang WJ, Bi SF, Jiao RH, Tan RX, Ge HM. New ansamycin analogues from the mutant strain of Streptomyces seoulensis. J Antibiot (Tokyo) 2015; 68:757-9. [PMID: 26058569 DOI: 10.1038/ja.2015.65] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 05/10/2015] [Accepted: 05/14/2015] [Indexed: 11/09/2022]
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173
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Li B, Chen H, Wu N, Zhang WJ, Shang LX. Deregulation of miR-128 in ovarian cancer promotes cisplatin resistance. Int J Gynecol Cancer 2015; 24:1381-8. [PMID: 25248111 DOI: 10.1097/igc.0000000000000252] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE Platinum-based chemotherapy is the standard treatment in advanced ovarian cancer, but most patients will relapse with drug-resistant disease. MicroRNAs have been demonstrated to function in chemoresistance in cancers. In this study, we focused on the role of miR-128 in cisplatin-resistant ovarian cancer. MATERIALS AND METHODS The expression of miR-128 RNA and its targeted genes, the polycomb ring finger oncogene Bmi-1 and ATP-binding cassette subfamily C member 5 (ABCC5), were investigated in the epithelial ovarian cancer cells and ovarian carcinomas. RESULTS miR-128 expression was significantly reduced in the cisplatin-resistant human epithelial ovarian cancer cell line SKOV3/CP compared with parental SKOV3 cells and decreased upon treatment with cisplatin in a concentration-dependent manner in SKOV3, OVCAR3, and PEO14 cells. Overexpression of miR-128 resensitized SKOV3/CP cells to cisplatin and reduced the expression of cisplatin-resistant-related proteins ABCC5 and Bmi-1, whereas miR-128 inhibitors increased cisplatin resistance in SKOV3 cells. Cisplatin combined with miR-128 agomirs inhibited the growth of SKOV3/CP xenograft tumors more effectively than cisplatin alone. Diminished expression of ABCC5 and Bmi-1 and higher cisplatin concentrations were observed in tumor tissue of mice treated with miR-128 agomirs in addition to cisplatin. CONCLUSIONS Taken together, our findings suggest that miR-128 may act as a promising therapeutic target for improvement of tumor sensitivity to cisplatin.
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Wang Y, You CX, Yang K, Wu Y, Chen R, Zhang WJ, Liu ZL, Du SS, Deng ZW, Geng ZF, Han J. Bioactivity of Essential Oil of Zingiber purpureum Rhizomes and Its Main Compounds against Two Stored Product Insects. JOURNAL OF ECONOMIC ENTOMOLOGY 2015; 108:925-32. [PMID: 26470212 DOI: 10.1093/jee/tov030] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Accepted: 12/12/2014] [Indexed: 05/22/2023]
Abstract
The insecticidal and repellent activities of the essential oil extracted from Zingiber purpureum Roscoe rhizomes were evaluated against Tribolium castaneum (Herbst) and Lasioderma serricorne (L.) adults. During our screening program for agrochemicals from Chinese medicinal herbs and wild plants, the essential oil of Z. purpureum rhizomes was found to possess strong contact toxicity against T. castaneum and L. serricorne adults, with LD50 values of 39.0 and 16.3 µg per adult, respectively, and also showed strong fumigant toxicity against the two grain storage insects with LC50 values of 13.6 and 9.3 mg/liter of air, respectively. The essential oil obtained by hydrodistillation was investigated by gas chromatography-mass spectrometry. The main components of the essential oil were identified to be sabinene (48.1%), terpinen-4-ol (25.1%), and γ-terpinene (6.7%), followed by α-terpinene (4.3%), β-thujene (3.4%), and α-phellandrene (2.7%). Sabinene, terpinen-4-ol, and γ-terpinene were separated and purified by silica gel column chromatography and preparative thin-layer chromatography. Terpinen-4-ol showed the strongest contact toxicity against T. castaneum and L. serricorne (LD50=19.7 and 5.4 µg per adult, respectively) and also the strongest fumigant toxicity against T. castaneum and L. serricorne (LC50=3.7 and 1.3 mg/liter of air, respectively). Otherwise, sabinene and terpinen-4-ol were strongly repellent against T. castaneum as well as the essential oil, while γ-terpinene exhibited weaker repellency against T. castaneum compared with the positive control, DEET (N, N-diethyl-3-methylbenzamide). Moreover, only the essential oil exhibited strong repellency against L. serricorne, the three compounds exhibited weaker repellency against L. serricorne relative to DEET.
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Song ZB, Ni JS, Wu P, Bao YL, Liu T, Li M, Fan C, Zhang WJ, Sun LG, Huang YX, Li YX. Testes-specific protease 50 promotes cell invasion and metastasis by increasing NF-kappaB-dependent matrix metalloproteinase-9 expression. Cell Death Dis 2015; 6:e1703. [PMID: 25811800 PMCID: PMC4385939 DOI: 10.1038/cddis.2015.61] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 02/01/2015] [Accepted: 02/02/2015] [Indexed: 12/11/2022]
Abstract
The high mortality in breast cancer is often associated with metastatic progression in patients. Previously we have demonstrated that testes-specific protease 50 (TSP50), an oncogene overexpressed in breast cancer samples, could promote cell proliferation and tumorigenesis. However, whether TSP50 also has a key role in cell invasion and cancer metastasis, and the mechanism underlying the process are still unclear. Here we found that TSP50 overexpression greatly promoted cell migration, invasion, adhesion and formation of the stellate structures in 3D culture system in vitro as well as lung metastasis in vivo. Conversely, TSP50 knockdown caused the opposite changes. Mechanistic studies revealed that NF-κB signaling pathway was required for TSP50-induced cell migration and metastasis, and further results indicated that TSP50 overexpression enhanced expression and secretion of MMP9, a target gene of NF-κB signaling. In addition, knockdown of MMP9 resulted in inhibition of cell migration and invasion in vitro and lung metastasis in vivo. Most importantly, immunohistochemical staining of human breast cancer samples strongly showed that the coexpression of TSP50 and p65 as well as TSP50 and MMP9 were correlated with increased metastasis and poor survival. Furthermore, we found that some breast cancer diagnosis-associated features such as tumor size, tumor grade, estrogen receptors (ER) and progesterone receptors (PR) levels, were correlated well with TSP50/p65 and TSP50/MMP9 expression status. Taken together, this work identified the TSP50 activation of MMP9 as a novel signaling mechanism underlying human breast cancer invasion and metastasis.
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