151
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Zhou W, Han Z, Zhu W. The metabolism of linseed lignans in rumen and its
impact on ruminal metabolism in male goats. JOURNAL OF ANIMAL AND FEED SCIENCES 2009. [DOI: 10.22358/jafs/66367/2009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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152
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Han Z, Wu S, Li Q, Li J, Gao D, Li K, Liu ZW, Zhao H. Efficient human growth hormone gene expression in the milk of non-transgenic goats. Folia Biol (Praha) 2009; 55:17-22. [PMID: 19445842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Heterogenous expression of recombinant proteins in milk of livestock at a large scale is very labour-intensive to be achieved with current transgenic animals, and usually seen as time-consuming, expensive and technically most challenging. Here we describe a convenient system for transient production of recombinant human growth hormone and its extensive use in recombinant protein production for therapeutic purposes. In this study, an adenoviral vector containing the GFP gene and hGH gene was constructed for direct infusion into the epithelium of mammary glands of goats via the teat canal during the period of natural lactation. Western-blot analysis of milk samples obtained from all of the viral-treated founders indicated that the recombinant hGH (rhGH) was secreted into the milk of the goats. The concentrations of rhGH in milk ranged from 0.6 to 2.4 mg/ml and lasted for more than 10 days during lactation. These data suggest that it is possible to produce larger amounts of recombinant human growth hormone in the milk of livestock animals by using replication-defective adenoviruses.
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153
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Hariri G, Han Z, Hallahan D. Radiation-guided Drug Delivery of Nanoparticle Albumin-bound Paclitaxel to Lung Cancer. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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154
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He K, Gu B, Zhang Q, Fu G, Wu J, Han Z, Cao W, Zou J, Mao M, Liu J, Chen Z, Chen S. Application of radiation hybrid in gene mapping. SCIENCE IN CHINA. SERIES C, LIFE SCIENCES 2008; 41:644-9. [PMID: 18726221 DOI: 10.1007/bf02882907] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/1998] [Indexed: 11/27/2022]
Abstract
Radiation hybrid (RH) mapping technique was exploited to determine chromosome locations of 26 human novel full length cDNAs recently cloned. All these cDNA clones were isolated from human cord blood CD (+) (34) cells and may be related to regulation of hematopoiesis. 23 genes were successfully mapped to chromosomal positions, while RH analyses were not possible in the remaining 3 cases. RH technique is indeed a powerful tool for mapping novel cDNA sequences due to its rapidity, precision, convenience and reproducibility.
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155
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Huang X, Zhuang L, Cao Y, Gao Q, Han Z, Tang D, Xing H, Zhou J, Ma D. Biodistribution and kinetics of the novel selective oncolytic adenovirus M1 after systemic administration. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)71664-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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156
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Han Z, Wood J, Herman H, Zhang C, Stevens G. Thermal Properties of Composites Filled with Different Fillers. ACTA ACUST UNITED AC 2008. [DOI: 10.1109/elinsl.2008.4570381] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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157
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Hallahan D, Han Z. Monitoring therapeutic response to TKIs in breast cancer by use of imaging peptides. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.11002] [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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158
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Kong X, Han Z, Lesser E, Gozani S, Megerian J. 37. Single motor unit F-response time of arrival. Clin Neurophysiol 2008. [DOI: 10.1016/j.clinph.2007.11.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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159
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An R, Li H, Han Z, Shao Y, Liu S, Kong X. The UL31 to UL35 gene sequences of Duck enteritis virus correspond to their homologs in herpes simplex virus 1. Acta Virol 2008; 52:23-30. [PMID: 18459832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Five ORFs in the genome of Duck enteritis virus (DEV) corresponding to UL31, UL32, UL33, UL34, and UL35 genes of Herpes simplex virus 1 (HSV-1) were amplified by a modified "targeted gene walking" PCR, cloned, and sequenced. UL33, UL34, and UL35 genes were oriented from the left to the right of genome, while UL31 and UL32 had an opposite orientation. A comparison of deduced amino acid sequences of the DEV ORFs with their alphaherpesvirus homologs showed well-conserved regions except for the UL34 and UL35 genes. Phylogenetic analysis revealed that DEV was closer to the genus Mardivirus than to any other genus of the subfamily Alphaherpesvirinae. Based on this evidence, we proposed to assign DEV to the subfamily Alphaherpesvirinae.
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160
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Huamani J, Passarella R, Onishko H, Fu A, Geng L, Han Z, Hallahan D, Diaz R. Rapid Assessment of Malignant Glioma Susceptibility to Molecular Targeted Therapy. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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161
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Pan H, Song P, Han Z, Li Y, Li W, Xia S. Effects of pitzer mixing parameters on the solubility prediction of HCl-RbCl-H2O system at 25°C. RUSS J INORG CHEM+ 2007. [DOI: 10.1134/s0036023607110277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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162
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Hariri G, Croce T, Harth E, Han Z, Tantawy N, Peterson T, Baldwin R, Hallahan D. Radiation Guided Peptide Targeting to Tumor Microvasculature using Nanoparticle Carriers. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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163
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Yao ZX, Han Z, Xu J, Greeson J, Lecanu L, Papadopoulos V. 22R-Hydroxycholesterol induces differentiation of human NT2 precursor (Ntera2/D1 teratocarcinoma) cells. Neuroscience 2007; 148:441-53. [PMID: 17689017 DOI: 10.1016/j.neuroscience.2007.06.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2006] [Revised: 06/05/2007] [Accepted: 06/10/2007] [Indexed: 12/25/2022]
Abstract
Recently, we have shown that 22R-hydroxycholesterol, a steroid intermediate in the pathway of pregnenolone formation from cholesterol, is present at lower levels in Alzheimer's disease (AD) hippocampus and frontal cortex tissue specimens than in age-matched controls, and that this substance protects against cell death induced by amyloid beta-peptide in both rat sympathetic nerve pheochromocytoma (PC12) and differentiated human Ntera2/D1 teratocarcinoma neurons. Herein we report that 22R-hydroxycholesterol inhibits the proliferation of human Ntera2/D1 teratocarcinoma precursor cells (NT2) and induces these cells to differentiate into "neuron-like" or "astrocyte-like" cells. 22R-Hydroxycholesterol-induced differentiation of NT2 cells is associated with increases in the expression of neurofilament protein NF200, the cytoskeletal proteins microtubule-associated protein type II (MAP2) a and MAP2b, glial fibrillary acidic protein (GFAP) and glial cell line-derived neurotrophic factor receptor-alpha 2 (GFRalpha2). These effects of 22R-hydroxycholesterol are considered to be stereospecific because its enantiomer 22S-hydroxycholesterol and other steroids failed to induce differentiation of NT2 cells. 22R-Hydroxycholesterol was found to lack specific binding for numerous receptors, including all steroid receptors tested. However, using a cholesterol protein binding blot assay we demonstrated the presence of a 22R-hydroxycholesterol-binding protein in NT2 cells distinct from the human oxysterol receptors liver X receptor LXRalpha and beta.
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164
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Han Z, Hong L, Han Y, Wu K, Han S, Shen H, Li C, Yao L, Qiao T, Fan D. Phospho Akt mediates multidrug resistance of gastric cancer cells through regulation of P-gp, Bcl-2 and Bax. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2007; 26:261-8. [PMID: 17725107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Phosphatidylinositol 3-kinase/Akt pathway is an important intracellular pathway that is frequently activated in cancer cells. The role of P-AKT in multidrug resistance of gastric cancer cells and the possible underlying mechanisms are here investigated. Up-regulation of P-AKT expression could confer resistance to both P-glycoprotein-related and P-glycoprotein-non-related drugs on AGS cells, and suppress adriamycin-induced apoptosis, along with decreased accumulation and increased releasing amount of adriamycin. P-AKT could significantly up-regulate the expression of Bcl-2, and down-regulate the expression of Bax, but not alter the expression of PTEN in gastric cancer cells. Inhibition of P-AKT expression could partially reverse P-AKT-mediated multidrug resistance and significantly up-regulate P53 expression, and down-regulate the expression of P-glycoprotein and the transcription of the multidrug resistance gene 1. Further studies of the biological functions of P-AKT may be helpful for understanding the mechanisms of multidrug resistance of gastric cancer and developing possible therapeutical strategies.
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165
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Levine SL, Han Z, Liu J, Farmer DR, Papadopoulos V. Disrupting mitochondrial function with surfactants inhibits MA-10 Leydig cell steroidogenesis. Cell Biol Toxicol 2007; 23:385-400. [PMID: 17429745 DOI: 10.1007/s10565-007-9001-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2006] [Accepted: 02/13/2007] [Indexed: 01/13/2023]
Abstract
It is well established that surfactants can elicit cytotoxic effects at threshold concentrations by changing the permeability and solubilizing components of cell membranes. The purpose of this study was to characterize the relationship between perturbation of the mitochondrial membrane resulting from treatment with representative cationic, nonionic, and anionic surfactants and the extent to which this perturbation affects steroid formation and StAR protein expression and activity in MA-10 Leydig cells. The StAR protein is synthesized as an active 37 kDa extramitochondrial form, which is processed into a 30 kDa intramitochondrial form after cholesterol transfer and mitochondrial import and processing. It has been shown in several in vitro studies that the mitochondrial electrochemical gradient is required for the StAR protein to transfer cholesterol to the inner mitochondrial membrane. Each substance that was tested produced a concentration-dependent decrease in steroid formation in hCG-stimulated MA-10 cells. Decreases in progesterone production were accompanied by loss of mitochondrial membrane potential and by a decrease in the levels of the 30 kDa form of the StAR protein. However, levels of the 37 kDa form of the StAR protein did not decrease, indicating no effect on StAR protein expression. These results demonstrate how perturbation of the mitochondrial membrane by surfactants inhibits import, processing, and cholesterol transfer activity and underscore the importance of including sensitive assays that evaluate mitochondrial function when screening for potential effects on steroidogenesis with in vitro test systems.
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166
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Balan KV, Prince J, Han Z, Dimas K, Cladaras M, Wyche JH, Sitaras NM, Pantazis P. Antiproliferative activity and induction of apoptosis in human colon cancer cells treated in vitro with constituents of a product derived from Pistacia lentiscus L. var. chia. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2007; 14:263-72. [PMID: 16713222 DOI: 10.1016/j.phymed.2006.03.009] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
In this report, we demonstrate that a 50% ethanol extract of the plant-derived product, Chios mastic gum (CMG), contains compounds which inhibit proliferation and induce death of HCT116 human colon cancer cells in vitro. CMG-treatment induces cell arrest at G(1), detachment of the cells from the substrate, activation of pro-caspases-8, -9 and -3, and causes several morphological changes typical of apoptosis in cell organelles. These events, furthermore, are time- and dose-dependent, but p53- and p21-independent. Apoptosis induction by CMG is not inhibited in HCT116 cell clones expressing high levels of the anti-apoptotic protein, Bcl-2, or dominant-negative FADD, thereby indicating that CMG induces cell death via a yet-to-be identified pathway, unrelated to the death receptor- and mitochondrion-dependent pathways. The findings presented here suggest that CMG (a) induces an anoikis form of cell death in HCT116 colon cancer cells that includes events associated with caspase-dependent pathways; and (b) might be developed into a chemotherapeutic agent for the treatment of human colon and other cancers.
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167
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Han Z, Leung TW, Lam W, Soo Y, Wong KS. Spontaneous basilar artery dissection. Hong Kong Med J 2007; 13:144-6. [PMID: 17406043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023] Open
Abstract
Dissection of the basilar artery is rare. We report a 51-year-old man who developed acute pontine infarction associated with dissection of the distal basilar artery. There was no trauma or unaccustomed movement of the head and neck prior to the stroke. The dissection was diagnosed non-invasively by magnetic resonance imaging and magnetic resonance angiography. Cervicocerebral artery dissection is a common cause of stroke in young patients particularly when conventional cardiovascular risk factors are absent. Magnetic resonance angiography combined with magnetic resonance imaging is a useful diagnostic tool prior to invasive angiography.
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168
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Han Z, Hong L, Wu K, Han S, Shen H, Liu C, Han Y, Liu Z, Han Y, Fan D. Reversal of multidrug resistance of gastric cancer cells by downregulation of Akt1 with Akt1 siRNA. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2006; 25:601-6. [PMID: 17310852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Phosphatidylinositol 3-kinase/AKT1 pathway was an important intracellular pathway that was frequently activated in cancer cells. In the present study, we constructed the siRNA eukaryotic expression vectors of AKT1 and transfected them into AGS cells to examine whether the down-regulation of AKT1 increased cell sensitivity towards chemotherapeutic drugs. After transfection, the expression of AKT1 was dramatically decreased in AKT1 siRNA transfectants compared with that in parental cells and empty vector control cells. The down-regulation of AKT1 could significantly enhance the sensitivity of AGS cells to vincristine, adriamycin, 5-fludrouracil and cisplatin. AKT1 siRNA could significantly down-regulate the expression of Bcl-2, and up-regulate the expression of Bax, but not alter the expression of PTEN in gastric cancer cells. These observations suggested that the siRNA constructs of AKT1 we obtained could effectively down-regulate the expression of AKT1 and reverse the resistant phenotype of gastric cancer cells. The further study of the biological functions of AKT1 may be helpful for understanding the mechanisms of multidrug resistance of gastric cancer and developing possible strategies to treat gastric cancer.
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169
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Hong L, Chen Z, Zhang X, Xia L, Han Z, Lu Y, Jin H, Song J, Qiao T, Fan D. Zinc ribbon domain containing 1 protein: modulator of multidrug resistance, tumorigenesis and cell cycle. Exp Oncol 2006; 28:258-62. [PMID: 17285107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Zinc ribbon domain containing 1 (ZNRD1) gene encoding a protein consisting of two zinc ribbon domains was recently cloned from the human HLA locus. So far, ZNRD1 has been found implicated in transcription regulation and might play potential roles in mediating several biological processes, including multidrug resistance, tumorigenesis and cell cycle. This article reviewed these recent findings and provided additional information to support the role of ZNRD1 gene as a novel candidate DNA damage repair related gene.
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170
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Hariri G, Zhang Y, Fu A, Han Z, Brechbiel M, Peterson T, Hallahan D. 2662. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.1077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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171
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Han Z, Onishko H, Hallahan D. 2617. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.1031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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172
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Zhang Y, Mernaugh R, Fu A, Han Z, Hariri G, Hallahan D. 2672. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.1087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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173
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Stacpoole P, Simpson N, Han Z, Berendzen K, Sweeney C, Oca-Cossio J, Constantinidis I. NMR investigation of metabolism in cultured human fibroblasts: Effects of PDC deficiency and DCA administration. Mitochondrion 2006. [DOI: 10.1016/j.mito.2006.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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174
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Coffin RS, Liu B, Han Z, Assenberg M, Thomas S, Hu J, Simpson G. OncoVEX: A family of oncolytic herpes simplex viruses optimised for therapeutic use. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.13139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
13139 HSV in which ICP34.5 is deleted directs tumour selective cell lysis and has proven safe in Phase I clinical trials. To produce oncolytic HSV with enhanced anti-tumour properties, we have deleted ICP34.5 from a clinical isolate of HSV-1, which enhances the tumour cell killing capabilities of the virus, deleted ICP47 (which blocks antigen presentation), and inserted the gene encoding GM-CSF. This aimed to maximize anti-tumour immune responses following intra-tumoural injection and provide an in situ, patient-specific, anti-tumour vaccine, combined with oncolysis. In vivo, both injected and non-injected tumours could be cured and animals were then protected against tumour cell challenge. A Phase I clinical trial with the virus (OncoVEXGM-CSF) has been conducted including patients with cutaneous or sub-cutaneous deposits of a number of tumour types (Lead Investigator: Professor Charles Coombes, Hammersmith Hospital, London). This demonstrated the virus to have a good safety profile, the main side effects being ‘flu-like symptoms, similar to those which have previously been observed with other oncolytic products. Virus replication and GM-CSF expression was demonstrated together with inflammation, flattening and necrosis of injected lesions which was in some cases considerable and which was also in some cases observed in lesions which had not themselves been injected. In all cases where necrosis was observed in biopsies, this correlated with areas of staining for HSV, suggesting the virus had caused the effect. Following this promising data, Phase II studies are underway in multiple tumour types. In addition to OncoVEXGM-CSF, further versions of OncoVEX expressing other active genes have been constructed and tested in pre-clinical models. These include a virus expressing TNF∝, intended to be synergistic with radiotherapy, and versions of the virus expressing a pro-drug activating gene combined with the delivery of a fusogenic glycoprotein designed to maximize the properties of the virus for local tumour control. Each of these have shown promising results in pre-clinical tumour models, including in combination with chemotherapy and radiotherapy where benefits which are at least additive have been demonstrated. [Table: see text]
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175
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Balan KV, Sitaras NM, Dimas K, Han Z, Wyche JH, Pantazis P. Differential susceptibility to etoposide in clones derived from a human ovarian cancer cell line. Chemotherapy 2006; 52:137-46. [PMID: 16645270 DOI: 10.1159/000093009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2005] [Accepted: 07/29/2005] [Indexed: 11/19/2022]
Abstract
OBJECTIVES To identify parameters/factors that may contribute to the differential sensitivity to etoposide in two clones isolated from the human ovarian carcinoma SKOV-3 cell line, which does not express p53 and is resistant to platinum-based regimens. METHODS Differential sensitivity of the cells to etoposide was monitored by microscopy to observe morphological changes, by flow cytometry analyses to detect cell cycle perturbations, and by molecular/biochemical assays to identify events involved in induction of apoptosis. RESULTS Etoposide treatment (1) induced apoptosis in one clone, ES, but not in another clone, ER, (2) had no effect on the expression of the antiapoptotic proteins Bcl-2 and Bcl-X(L) in both cell clones, whereas the proapoptotic proteins Bak and Bax were dramatically upregulated in ES, but not ER cells, and (3) induced more extensive processing of procaspase-8, procaspase-9, and the caspase-3-targeted substrates, topoisomerase I and PARP, in ES cells. Ectopic overexpression of Bcl-2 in ES cells failed to inhibit etoposide-induced apoptosis. CONCLUSIONS The differential susceptibility of ES and ER cells to etoposide-induced apoptosis is associated with differences in several events rather than with a specific single genetic regulator of the apoptotic machinery. We propose that the differential response of ovarian cancer patients to etoposide treatment is associated with the number of etoposide-sensitive cells in the tumor.
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