نتایج جستجو برای: wehi 164
تعداد نتایج: 10229 فیلتر نتایج به سال:
gp96 جزئی از پروتئین های شوک حرارتی است که نقش فراوانی در ایمنی سلولی علیه تومور دارد. آن در رده توموری، نشانه تسلط بیشتر ایمنی بدن به آن تومور است.جهت خالص سازی ایزوفرم غالب مولکول gp96 از رده توموری فیبروسارکومای موش، سلول های حاصل از کشت رده سلولی wehi-164 لیز شده و مایع رویی حاصل از عصاره سلولی با سولفات آمونیوم رسوب داده شد. سپس با استفاده از کروماتوگرافی میل جذبی و کروماتوگرافی تعویض ...
Treatment with recombinant interleukin 2 and lymphokine-activated killer cells (rIL-2/LAK) has produced a clinical antitumor effect in preliminary human trials. The cytokines gamma-interferon (IFN-gamma), tumor necrosis factor alpha (TNF-alpha), and tumor necrosis factor beta (TNF-beta, lymphotoxin) have potent in vitro antitumor activity and some clinical toxicities similar to interleukin 2 (I...
Controversial immunomodulatory properties of bee venom (BV) have provided an appropriate field for more investigation. The aim of present research was to verify the effects of honeybee venom on matrix metalloproteinase activity and interferon production as well as cell proliferation in monocyte and fibroblast cell lines.The monocyte and fibroblast cell lines (K562, HT-1080, WEHI-164) were used ...
Myeloid cell lines that have achieved leukemic transformation may also have acquired the ability to produce hematopoietic growth factors. In certain instances, neutralizing antibodies directed against the growth factor have inhibited growth, supporting an autocrine mechanism in their transformation. The effect of anti-receptor antibodies on their growth and transformed phenotype has not been re...
Treatment of WEHI 231 immature B-lymphoma cells with an antibody against their surface immunoglobulin (anti-Ig) induces apoptosis and has been studied extensively as a model of B-cell tolerance. Anti-Ig treatment of exponentially growing WEHI 231 cells results in an early transient increase in c-myc expression that is followed by a decline to below basal levels; this decrease in c-myc expressio...
The engagement of membrane-bound Igs (mIgs) results in growth arrest, accompanied by apoptosis, in the WEHI-231 murine B lymphoma cells, a cell line model representative of primary immature B cells. Inhibitor of differentiation (Id) proteins, members of the helix-loop-helix protein family, functions in proliferation, differentiation, and apoptosis in a variety of cell types. In this study, we a...
We investigated the molecular mechanisms of cell cycle arrest and apoptotic death induced by Solanum lyratum extracts (SLE) or diosgenin in WEHI-3 murine leukemia cells in vitro and antitumor activity in vivo. Diosgenin is one of the components of SLE. Our study showed that SLE and diosgenin decreased the viable WEHI-3 cells and induced G(0)/G(1) phase arrest and apoptosis in concentration- or ...
Treatment with recombinant interleukin 2 and lymphokine-activated killer cells (rIL-2/LAK) has produced a clinical antitumor effect in preliminary human trials. The cytokines -y-interferon (Il'V-y), tumor necrosis factor a (TNF-a), and tumor necrosis factor 0 (TNF-/S, lymphotoxin) have potent in vitro antitumor activity and some clinical toxicities similar to interleukin 2 (IL-2)/LAK. This stud...
The major covalent adduct formed between a 13C-labelled formaldehyde activated bis-amino mitoxantrone analogue (WEHI-150) and the hexanucleotide d(CG5MeCGCG)2 has been isolated by HPLC chromatography and the structure determined by NMR spectroscopy. The results indicate that WEHI-150 forms one covalent bond through a primary amine to the N-2 of the G2 residue, with the polycyclic ring structure...
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