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Fu Z, Han X, Du J, Han X, Liu W, Shao S, Liu X. Euphorbia lunulata extract acts on multidrug resistant gastric cancer cells to inhibit cell proliferation, migration and invasion, arrest cell cycle progression, and induce apoptosis. JOURNAL OF ETHNOPHARMACOLOGY 2018; 212:8-17. [PMID: 28811220 DOI: 10.1016/j.jep.2017.08.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 07/31/2017] [Accepted: 08/09/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The milky sap or the aboveground part of the plant Euphorbia lunulata has long been used by Chinese people to treat noncancerous growths and cancerous ailments but the specific mode of action and the action mechanism remain to be elucidated. AIM OF THE STUDY To investigate the effects of Euphorbia lunulata extract on cell proliferation, migration, invasion, cell cycle progression, and apoptosis of multidrug resistant human gastric cancer cells; To study the mechanism of apoptosis induction by Euphorbia lunulata extract in multidrug resistant human gastric cancer cells. MATERIALS AND METHODS The aboveground part of fresh Euphorbia lunulata plant was extracted first with ethanol and then with n-hexane. The aseptic extract at varying concentrations was used to treat the multidrug resistant human gastric cancer SGC7901/ADR cells. After treatment, the inhibition of cell proliferation was examined by MTT assay. The inhibitions of cell migration and invasion were detected by Transwell method. The alteration of cell cycle progression was studied by flow cytometry. The morphological changes of cell nuclei were observed with fluorescence microscopy following Hoechst 33258 staining and the apoptotic indexes were calculated. The activation of caspase enzymes was analyzed by spectrophotometry. The sub-cellular distribution of cytochrome complex and the expression of Bax and Bcl-2 proteins were determined by Western blot. RESULTS The proliferation, migration, and invasion of SGC7901/ADR cells were significantly inhibited by Euphorbia lunulata extract, which showed time- and dose-dependent manners. Cell cycle was arrested in G2/M phase. Significant apoptotic morphological changes were observed in the nuclei of the treated cells, and apoptotic indexes were increased significantly; these changes were diminished when Z-VAD-FMK, a caspase inhibitor, was also presented. The activities of caspase-3, caspase-8, and caspase-9 were increased. The sub-cellular distribution of cytochrome complex was altered----reduced in the mitochondria and increased in the cytoplasm. The expression of Bax was upregulated, while that of Bcl-2 was downregulated. CONCLUSION Euphorbia lunulata extract inhibited the proliferation, migration, and invasion of SGC7901/ADR cells, arrested cell cycle progression, and induced cell apoptosis; the mechanism of apoptosis induction involved both the extrinsic and the intrinsic pathways.
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Yin Y, Li W, Huang X, Wang J, Fu Z, Li J. Abstract P4-03-10: Clinical observation of lapatinib versus continued use of trastuzumab for trastuzumab-resistant HER2-positive advanced breast cancer. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p4-03-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Objective: To compare the efficacy, adverse effects and survival of lapatinib versus continued use of trastuzumab for trastuzumab-resistant human epidermal growth factor receptor 2 (HER2)-positive advanced breast cancer.
Methods: Patients who began the regimen of lapatinib plus capecitabine (LC or LX) or trastuzumab beyond progression (TBP) between May 2013 and October 2016 were selected from the First Affiliated Hospital of Nanjing Medical University. All of their clinical data were recorded, including age, performance status, hormone receptor status, metastatic site, primary or acquired trastuzumab resistance, previous treatment and so on. They were followed up until death or April 30, 2017. The primary end point was progression-free survival (PFS). The efficacy and safety of the two regimens were evaluated according to Response Evaluation Criteria In Solid Tumors (RECIST) version 1.1 and Common Terminology Criteria for Adverse Events (CTCAE) version 4.0, respectively. Data were analyzed by SPSS version 19.0.
Results: In total, 95 patients were identified, including 40 treated with LX and 55 with TBP. Median follow-up time was 16.0 months. There was no difference in objective response rate (ORR) and disease control rate (DCR) between the two groups. By the end of follow-up, median PFS was 6.3 months with LX and 7.1 months with TBP (P=0.676). In patients with primary trastuzumab resisitance, longer PFS was observed in LX group compared with TBP group [median PFS: 8.0 months vs. 5.3 months, hazard ratio (HR)=0.416, 95% confidence interval (CI): 0.177-0.981, P=0.038]. The incident rate of new brain metastases during treatment was 2.5% in LX group and 10.9% in TBP group, respectively (P=0.233). Both regimens showed similar outcomes in baseline brain metastases. Grade 3-4 adverse effects included diarrhea 7.5%(3/40) and hand-foot syndrome 12.5%(5/40) in LX group, along with leukopenia 18.2%(10/55), thrombocytopenia 9.1%(5/55) and nausea/vomiting 3.6%(2/55) in TBP group.
Conclusion: LX and TBP were similarly effective for patients with HER2-positive breast cancer progressing on prior trastuzumab-containing therapy. Both were well tolerated in general. Lapatinib tended to reduce the risk of disease progression in patients resistant to trastuzumab primarily. LX or TBP after local treatment appeared to show no difference in treating patients with brain metastases.
Citation Format: Yin Y, Li W, Huang X, Wang J, Fu Z, Li J. Clinical observation of lapatinib versus continued use of trastuzumab for trastuzumab-resistant HER2-positive advanced breast cancer [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P4-03-10.
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Fu Z, Guo X, Han X, Tian Z. Full extract of Euphorbia esula reversed chemoresistance, inhibited cell migration/invasion, and induced apoptosis of multidrug-resistant SGC7901/VCR cells. Pharmacogn Mag 2018. [DOI: 10.4103/pm.pm_447_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Gao F, Fu Z, Liu W, Han X, Guo S, Guo X. A farnesyl transferase inhibitor induces apoptosis of insulinoma pancreatic β cells of mouse. Biomed Res 2018. [DOI: 10.4066/biomedicalresearch.29-17-648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Niu C, Liu N, Liu J, Zhang M, Ying L, Wang L, Tian D, Dai J, Luo Z, Liu E, Zou L, Fu Z. Vitamin A maintains the airway epithelium in a murine model of asthma by suppressing glucocorticoid-induced leucine zipper. Clin Exp Allergy 2017; 46:848-60. [PMID: 26399569 DOI: 10.1111/cea.12646] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 08/05/2015] [Accepted: 08/12/2015] [Indexed: 01/08/2023]
Abstract
BACKGROUND The effects of glucocorticoids (GCs) on the repair of the airway epithelium in asthma are controversial, and we previously reported that the GC dexamethasone (Dex) inhibits the repair of human airway epithelial cells and that this process is mediated by glucocorticoid-induced leucine zipper (GILZ) through MAPK-ERK signaling in vitro. Vitamin A (VA) is involved in the regulation of the MAPK-ERK pathway but has not been widely supplied during asthma treatment. It is unclear whether VA attenuates the negative regulation of GILZ on the MAPK-ERK pathway and maintains airway epithelium integrity during asthma treatment. METHODS Female BALB/c mice were sensitized and challenged with ovalbumin (OVA) and subsequently treated with Dex, VA or intranasal inhalation of adenovirus sh-GILZ vectors. Indexes of airway epithelium integrity, including pathological alterations, pulmonary EGFR expression and airway hyperresponsiveness (AHR), were then measured. The expression of GILZ and key components of activated MAPK-ERK signals (p-Raf-1, p-MEK, and p-Erk1/2) were also detected. RESULTS Dex failed to relieve OVA-induced asthma airway epithelium injury, as assessed through H&E staining, EGFR expression and AHR. Moreover, in the OVA-challenged mice treated with Dex, GLIZ expression was increased, whereas the ratios of p-Raf-1/Raf-1, p-MEK/MEK and p-Erk1/2/Erk1/2 were significantly decreased. Further study indicated that GILZ expression was decreased and that the ratios of p-Raf-1/Raf-1, p-MEK/MEK and p-Erk1/2/Erk1/2 were up-regulated in the GILZ-silenced OVA-challenged mice and VA-fed OVA-challenged mice, independent of Dex treatment. The airway epithelium integrity of the OVA-challenged mice was maintained by treatment with both VA and Dex. CONCLUSIONS Vitamin A maintained the Dex-treated asthma airway epithelium via the down-regulation of GILZ expression and the activation MAPK-ERK signaling, and these effects might contribute to improving the effects of GC therapeutics on asthma.
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Akimov D, Albert JB, An P, Awe C, Barbeau PS, Becker B, Belov V, Brown A, Bolozdynya A, Cabrera-Palmer B, Cervantes M, Collar JI, Cooper RJ, Cooper RL, Cuesta C, Dean DJ, Detwiler JA, Eberhardt A, Efremenko Y, Elliott SR, Erkela EM, Fabris L, Febbraro M, Fields NE, Fox W, Fu Z, Galindo-Uribarri A, Green MP, Hai M, Heath MR, Hedges S, Hornback D, Hossbach TW, Iverson EB, Kaufman LJ, Ki S, Klein SR, Khromov A, Konovalov A, Kremer M, Kumpan A, Leadbetter C, Li L, Lu W, Mann K, Markoff DM, Miller K, Moreno H, Mueller PE, Newby J, Orrell JL, Overman CT, Parno DS, Penttila S, Perumpilly G, Ray H, Raybern J, Reyna D, Rich GC, Rimal D, Rudik D, Scholberg K, Scholz BJ, Sinev G, Snow WM, Sosnovtsev V, Shakirov A, Suchyta S, Suh B, Tayloe R, Thornton RT, Tolstukhin I, Vanderwerp J, Varner RL, Virtue CJ, Wan Z, Yoo J, Yu CH, Zawada A, Zettlemoyer J, Zderic AM. Observation of coherent elastic neutrino-nucleus scattering. Science 2017; 357:1123-1126. [DOI: 10.1126/science.aao0990] [Citation(s) in RCA: 316] [Impact Index Per Article: 45.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 07/25/2017] [Indexed: 11/02/2022]
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Hong Y, Fu Z, Cao X, Lin J. Changes in microRNA expression in response to Schistosoma japonicum infection. Parasite Immunol 2017; 39. [PMID: 28160510 DOI: 10.1111/pim.12416] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 01/30/2017] [Indexed: 11/29/2022]
Abstract
Schistosomiasis japonicum is one of the most serious zoonotic diseases in the world. There is increasing evidence to show that host miRNAs are modulated following Schistosoma japonicum infection, and some of these miRNAs may play important regulatory roles in response to schistosome infection. Several host miRNAs have been identified and shown to be potential diagnostic biomarkers or novel therapeutic targets for schistosomiasis. These studies have paved the way to a better understanding of the mechanisms of schistosome-host interaction and may facilitate the development of novel approaches to the control of the disease.
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De La Zerda DJ, Stokes JA, Do J, Go A, Fu Z, Powell FL. Ibuprofen does not reverse ventilatory acclimatization to chronic hypoxia. Respir Physiol Neurobiol 2017; 256:29-35. [PMID: 28757366 DOI: 10.1016/j.resp.2017.07.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 07/18/2017] [Accepted: 07/20/2017] [Indexed: 01/13/2023]
Abstract
Ventilatory acclimatization to hypoxia involves an increase in the acute hypoxic ventilatory response that is blocked by non-steroidal anti-inflammatory drugs administered during sustained hypoxia. We tested the hypothesis that inflammatory signals are necessary to sustain ventilatory acclimatization to hypoxia once it is established. Adult, rats were acclimatized to normoxia or chronic hypoxia (CH, [Formula: see text] =70Torr) for 11-12days and treated with ibuprofen or saline for the last 2days of hypoxia. Ventilation, metabolic rate, and arterial blood gas responses to O2 and CO2 were not affected by ibuprofen after acclimatization had been established. Immunohistochemistry and image analysis showed acute (1h) hypoxia activated microglia in a medullary respiratory center (nucleus tractus solitarius, NTS) and this was blocked by ibuprofen administered from the beginning of hypoxic exposure. Microglia returned to the control state after 7days of CH and were not affected by ibuprofen administered for 2 more days of CH. In contrast, NTS astrocytes were activated by CH but not acute hypoxia and activation was not reversed by administering ibuprofen for the last 2days of CH. Hence, ibuprofen cannot reverse ventilatory acclimatization or astrocyte activation after they have been established by sustained hypoxia. The results are consistent with a model for microglia activation or other ibuprofen-sensitive processes being necessary for the induction but not maintenance of ventilatory acclimatization to hypoxia.
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Liu J, Li C, Hu M, Lu J, Shi X, Xing L, Sun X, Fu Z, Yu J, Meng X. Exploring Spatial Overlap of High-Uptake Regions Derived From Dual Tracer PET/CT Imaging Using 18F-FDG and 18F-FLT in Non–Small Cell Lung Cancer Patients: A Prospective Pilot Study. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.01.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Liu W, Yuan Q, Guo S, Fu Z. Emodin in Severe Acute Pancreatitis Treatment. Chin Med 2017. [DOI: 10.4236/cm.2017.84008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Hu M, Fan B, Ma J, Xue S, Zhao S, Fu Z, Yu J. FLT Positron Emission Tomography/Computed Tomography for Survival Prediction in Patients With High-Grade Glioma Treated With Postoperative Chemoradiation Therapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Castillo Carrillo CI, Fu Z, Jensen AS, Snyder WE. Arthropod Pests and Predators Associated With Bittersweet Nightshade, a Noncrop Host of the Potato Psyllid (Hemiptera: Triozidae). ENVIRONMENTAL ENTOMOLOGY 2016; 45:873-882. [PMID: 27357162 DOI: 10.1093/ee/nvw072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Accepted: 05/18/2016] [Indexed: 06/06/2023]
Abstract
Bittersweet nightshade (Solanum dulcamara L.) is a key noncrop host of the potato psyllid (Bactericera cockerelli Šulc), proposed to be a source of the psyllids that colonize potato (Solanum tuberosum L.) fields in the northwestern United States. Here, we describe the broader community of arthropod potato pests, and also predatory arthropods, found in bittersweet nightshade patches. Over 2 yr, we sampled arthropods in patches of this weed spanning the potato-growing region of eastern Washington State. The potato psyllid was the most abundant potato pest that we found, with reproduction of these herbivores recorded throughout much of the growing season where this was measured. Aphid, beetle, and thrips pests of potato also were collected on bittersweet nightshade. In addition to these herbivores, we found a diverse community of >40 predatory arthropod taxa. Spiders, primarily in the Families Dictynidae and Philodromidae, made up 70% of all generalist predator individuals collected. Other generalist predators included multiple species of predatory mites, bugs, and beetles. The coccinellid beetle Stethorus punctillum (Weise) was observed eating psyllid eggs, while the parasitoid wasp Tamarixia triozae (Burks) was observed parasitizing potato psyllid nymphs. Overall, our survey verified the role of bittersweet nightshade as a potato psyllid host, while suggesting that other potato pests also use these plants. At the same time, we found that bittersweet nightshade patches were associated with species-rich communities of natural enemies. Additional work is needed to directly demonstrate movement of pests, and perhaps also predators, from bittersweet nightshade to potato fields.
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Banc A, Charbonneau C, Dahesh M, Appavou MS, Fu Z, Morel MH, Ramos L. Small angle neutron scattering contrast variation reveals heterogeneities of interactions in protein gels. SOFT MATTER 2016; 12:5340-5352. [PMID: 27198847 DOI: 10.1039/c6sm00710d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We propose a quantitative approach to probe the spatial heterogeneities of interactions in macromolecular gels, based on a combination of small angle X-ray (SAXS) and neutrons (SANS) scattering. We investigate the structure of model gluten protein gels and show that the gels display radically different SAXS and SANS profiles when the solvent is (at least partially) deuterated. The detailed analysis of the SANS signal as a function of the solvent deuteration demonstrates heterogeneities of sample deuteration at different length scales. The progressive exchange between the protons (H) of the proteins and the deuteriums (D) of the solvent is inhomogeneous and 60 nm large zones that are enriched in H are evidenced. In addition, at low protein concentration, in the sol state, solvent deuteration induces a liquid/liquid phase separation. Complementary biochemical and structure analyses show that the denser protein phase is more protonated and specifically enriched in glutenin, the polymeric fraction of gluten proteins. These findings suggest that the presence of H-rich zones in gluten gels would arise from the preferential interaction of glutenin polymers through a tight network of non-exchangeable intermolecular hydrogen bonds.
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Huang J, Song G, Yin Z, Fu Z, Ye Z. AB0118 MIR-29A and Messenger RNA Expression of Bone Turnover Markers in Canonical Wnt Pathway in Patients with Ankylosing Spondylitis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.1262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Lu C, Chen Q, Zhou T, Bozic D, Fu Z, Pan JQ, Feng G. Micro-electrode array recordings reveal reductions in both excitation and inhibition in cultured cortical neuron networks lacking Shank3. Mol Psychiatry 2016; 21:159-68. [PMID: 26598066 DOI: 10.1038/mp.2015.173] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 08/27/2015] [Accepted: 10/06/2015] [Indexed: 01/07/2023]
Abstract
Numerous risk genes have recently been implicated in susceptibility to autism and schizophrenia. Translating such genetic findings into disease-relevant neurobiological mechanisms is challenging due to the lack of throughput assays that can be used to assess their functions on an appropriate scale. To address this issue, we explored the feasibility of using a micro-electrode array (MEA) as a potentially scalable assay to identify the electrical network phenotypes associated with risk genes. We first characterized local and global network firing in cortical neurons with MEAs, and then developed methods to analyze the alternation between the network active period (NAP) and the network inactive period (NIP), each of which lasts tens of seconds. We then evaluated the electric phenotypes of neurons derived from Shank3 knockout (KO) mice. Cortical neurons cultured on MEAs displayed a rich repertoire of spontaneous firing, and Shank3 deletion led to reduced firing activity. Enhancing excitation with CX546 rescued the deficit in the spike rate in the Shank3 KO network. In addition, the Shank3 KO network produced a shorter NIP, and this altered network firing pattern was normalized by clonazepam, a positive modulator of the GABAA receptor. MEA recordings revealed electric phenotypes that displayed altered excitation and inhibition in the network lacking Shank3. Thus, our study highlights MEAs as an experimental framework for measuring multiple robust neurobiological end points in dynamic networks and as an assay system that could be used to identify electric phenotypes in cultured neuronal networks and to analyze additional risk genes identified in psychiatric genetics.
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Pan Z, Fu Z, Song Q, Cao W, Cheng W, Xu X. Genetic polymorphisms and haplotype of hormone-related genes are associated with the risk of breast cancer in Chinese women. GENETICS AND MOLECULAR RESEARCH 2016; 15:gmr8640. [DOI: 10.4238/gmr.15028640] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Zhang H, Yuan S, Liu N, Gao S, Wei Y, Fu Z, Hu X, Wang S, Zhao W. Can a Novel 18F-ALF-NOTA-PRGD2 PET/CT Predict the Treatment Sensitivity of Concurrent Chemoradiation Therapy in Patients With Newly Diagnostic Glioblastoma? Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Wang S, Yuan S, Gao S, Li W, Zhao S, Teng X, Lu H, Zheng J, Ma L, Fu Z. Prediction of Response By RGD PET During Radiation Therapy for Esophageal Squamous Cell Carcinoma: A Pilot Study. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Chen X, Zhao X, Gao Z, Gao Y, Zhang B, Fu Z, Mu D, Yu J, Meng X. Proliferation PET Image to Characterize Pathological Spatial Features in Patients With Non-Small Cell Lung Cancer: A Pilot Study. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Gao S, Yuan S, Li W, Zhao S, Teng X, Lu H, Fu Z, Zheng J, Ma L, Yu J. Evaluation of Benign Versus Malignant Lung Lesions With RGD PET/CT: A Pilot Study. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Wei Y, Hu X, Zhang J, Fu Z, Wei L, Zhao W, Wang X, Yu J, Yuan S. Qualitative and Quantitative Comparison of the MicroPET Images Obtained Using 18F-Alfatide and 18F-FDG in LLC Tumor-Bearing C57BL6 Mice Vivo Visualization. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Yu H, Wu Q, Fu Z, Huang Y, Liao Z, Xie C, Zhou Y, Zhong Y. A Phase II Trial of Postoperative Radiation Therapy of Gastric Cancer Patients Basing on a New Method of Lymph Node Target Volume Delineation: The Study Protocol, Toxicity and Efficacy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Pack J, Fu Z, Aydogan F. Modeling primary and secondary coolant of a nuclear power plant system with a unique framework (MCUF). PROGRESS IN NUCLEAR ENERGY 2015. [DOI: 10.1016/j.pnucene.2015.03.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Liu X, Li B, Wang Y, Liu Y, Dai G, Fu Z. [The increased level of IL-17 in stomach and up-regulated splenic Th17 cell frequency and IL-17 mRNA level in rats infected with Helicobacter pylori]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2015; 31:779-786. [PMID: 26062421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To investigate the variation of Th17 cell frequency and IL-17 level in rats infected with Helicobacter pylori (Hp). METHODS A total of 30 rats were used to be infected with Hp by intragastric administration of bacterial suspension. Every 10 rats were sacrificed after 3, 6 and 9 weeks, respectively. The gastric tissues of rats were pathologically examined by HE staining. The level of IL-17 in the gastric tissues of rats was detected by ELISA. The flow cytometry was performed to determine Th17 cell frequency and reverse transcription PCR was to detect the level of IL-17 mRNA in single-cell suspensions of rat spleen. RESULTS Hp infection induced the obvious pathological changes in the rat gastric mucosa. The level of IL-17 in the gastric tissues increased with the prolonging of the Hp infection. Both Th17 cell frequency and IL-17 mRNA level in rat spleen cells infected with Hp at 3, 6 and 9 weeks were significantly higher than those in control rats, and they were significantly different when compared among different time points. CONCLUSION Hp infection could induce the damage of rat gastric mucosa and increase IL-17 level in the stomach. Furthermore, Hp infection could up-regulate the Th17 cell frequency and IL-17 mRNA level in rat spleen cells.
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Ding R, Feng L, He L, Chen Y, Wen P, Fu Z, Lin C, Yang S, Deng X, Zeng J, Sun G. Peroxynitrite decomposition catalyst prevents matrix metalloproteinase-9 activation and neurovascular injury after hemoglobin injection into the caudate nucleus of rats. Neuroscience 2015; 297:182-93. [PMID: 25849612 DOI: 10.1016/j.neuroscience.2015.03.065] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Revised: 03/19/2015] [Accepted: 03/29/2015] [Indexed: 10/23/2022]
Abstract
Hemoglobin (Hb) is a major constituent of blood and a potent mediator of oxidative or nitrative stress after intracerebral hemorrhage (ICH). Our previous study demonstrated that Hb could induce abundant peroxynitrite (ONOO(-)) formation in vivo, which may be involved in the blood-brain barrier (BBB) disruption, however, the drug intervention is absent and also the underlying mechanism. Using an experimental stroke model by injecting Hb into the caudate nucleus of male Sprague-Dawley rats, we assessed the role of ONOO(-) decomposition catalyst, 5,10,15,20-tetrakis (4-sulfonatophenyl) porphyrinato iron(III) [FeTPPS] in the activation of MMP-9 and Hb-induced neurovascular injuries. 3-Nitrotyrosine (3-NT, as an index of ONOO(-) formation) and NF-κB expression was measured by western blot (WB) and immunohistochemistry (IHC)/immunofluorescence (IF). Activity of MMP was evaluated by in situ zymography. Neurovascular injury was assessed using zonula occludens-1 (ZO-1) by WB and IF, fibronectin (FN) and neuron-specific nuclear protein (NeuN) IHC. Perihematomal cell death was determined by TUNEL assay. Behavioral outcome was measured by modified neurological severity score (mNSS) test. At the injured striata, profuse 3-NT was produced and mainly expressed in neutrophils and microglia/macrophages. 3-NT formation significantly colocalized with nuclear factor-κB (NF-κB) expression. In situ zymography showed that gelatinase activity was mostly co-localized with neurons and blood vessel walls and partly with neutrophils and microglia/macrophages. Enhanced 3-NT production, NF-κB induction and MMP-9 activation were obviously reduced after FeTPPS treatment. Hb-induced injury to tight junction protein (ZO-1), basal lamina of FN-immunopositive microvasculature and neural cells was evidently ameliorated by FeTPPS. In addition, apoptotic cell numbers as well as behavioral deficits were also improved. The present study shows that the administration of the ONOO(-) decomposition catalyst FeTPPS protects against Hb-induced neurovascular injuries and improves neurological function, which possibly in part by suppressing MMP-9 activation.
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