9 research outputs found
デンシ ケンビキョウ タンリュウシ ガゾウ ノ スペクトラル クラスタリング
video/mp4スペクトラルクラスタリングの手法を用いて、電子顕微鏡で捉えたタンパク質の単粒子画像を分類し、構造解析する手法を紹介する。特にクラスタリングにおける教師無し学習について考えたい。ランダムな向きである同一の分子画像を類似度行列に基づいて分類し、粒子が同じ向きである画像を加算平均してノイズを除去した2次元像を取得する。そして、タンパク質の体積が3次元像再構成される。バイオインフォマティックスを推進する産総研との連携研究室である生体分子情報学研究室のトピックスも紹介する。講演者所属: 産業技術総合研究所 講演場所: 情報科学棟大講義室L1vide
研究速報 : Non-Linearity in Stress-Strain Relations of a Wide Range of Geotechnical Engineering Materials : Part2 Effects of stress history
departmental bulletin pape
Sodium Ascorbate induces apoptosis in neuroblastoma cell lines by interfering with iron uptake-2
<p><b>Copyright information:</b></p><p>Taken from "Sodium Ascorbate induces apoptosis in neuroblastoma cell lines by interfering with iron uptake"</p><p>http://www.molecular-cancer.com/content/6/1/55</p><p>Molecular Cancer 2007;6():55-55.</p><p>Published online 30 Aug 2007</p><p>PMCID:PMC2000471.</p><p></p> for 24 hours and iron levels were measured in cell lysates. After terminating the incubation, cells were collected by scraping and washed three times with PBS and then lysed in specific buffer. Iron levels were analyzed with a Cobas Integra 800 system as described under "Material and Method". Values indicated are the mean ± S.D. of three separate experiments
Membrane expression of TfR (CD71) by neuroblastoma cell lines and its modulation by sodium ascorbate
<p><b>Copyright information:</b></p><p>Taken from "Sodium Ascorbate induces apoptosis in neuroblastoma cell lines by interfering with iron uptake"</p><p>http://www.molecular-cancer.com/content/6/1/55</p><p>Molecular Cancer 2007;6():55-55.</p><p>Published online 30 Aug 2007</p><p>PMCID:PMC2000471.</p><p></p> Cells were seeded in six well plates and treated for 6 and 24 hours with increasing concentrations of sodium ascorbate. For each bar group, the concentration was: 0 (control), 0.5 mM, 1 mM, 2 mM and 3 mM. Cells were than washed and incubated with a FITC-coniugated mouse monoclonal antibody specific to human CD71 and analyzed by flow cytometry. The data are the mean ± S.D. from three independent experiments, each in triplicate
Representative example of cytofluorimetric analysis showing the effect of vitamin C alone or in combination with FAC, on the mitochondrial membrane potential of SH-SY5Y (panel A) and HTLA-230 (panel B) stained with JC-1 probe
<p><b>Copyright information:</b></p><p>Taken from "Sodium Ascorbate induces apoptosis in neuroblastoma cell lines by interfering with iron uptake"</p><p>Molecular Cancer 2007;6():55-55.</p><p>Published online 30 Aug 2007</p><p>PMCID:PMC2000471.</p><p></p> In abscissa FL-1 (green fluorescence); in ordinate FL-2 (red fluorescence). Numbers represent the percentage of non-apoptotic red fluorescent cells (R1, R3) and that of apoptotic green fluorescent cells (R2, R4). Sodium ascorbate induces a marked increase in apoptosis which is fully prevented by treatment with FAC. SH-SY5Y and HTLA-230 were incubate in complete medium in the absence (A1, B1) or in presence of 1 mM sodium ascorbate (A2, B2) and 2 mM sodium ascorbate (A4, B4) for 16 hours. Cells were pretreated (A3, A5, B3, B5) with 70 μg/ml of FAC for 3 hours. Comparable results were obtained in three independent experiments
Sodium Ascorbate induces apoptosis in neuroblastoma cell lines by interfering with iron uptake-4
<p><b>Copyright information:</b></p><p>Taken from "Sodium Ascorbate induces apoptosis in neuroblastoma cell lines by interfering with iron uptake"</p><p>http://www.molecular-cancer.com/content/6/1/55</p><p>Molecular Cancer 2007;6():55-55.</p><p>Published online 30 Aug 2007</p><p>PMCID:PMC2000471.</p><p></p>of sodium ascorbate (in the presence or absence of FAC 70 μg/ml). After 16 hours, cells detached in the medium were collected by centrifugation, resuspended and incubated with AnnexinV-FITC. Apoptosis was quantified as increased green fluorescence by flow cytometry. The data are the mean ± S.D. from four independent experiments. Statistical analysis was done by Student's test (*, p < 0.005)
