Econazole-Induced Ca2+ Fluxes and Apoptosis in Human Oral Cancer Cells
碩士 === 大仁科技大學 === 製藥科技研究所 === 97 === The effect of econazole on cytosolic free Ca2+ concentrations ([Ca2+]i) and viability was explored in human oral cancer cells (OC2), using the fluorescent dyes fura-2 and WST-1, respectively. Econazole at concentrations of and above 1 M increased [Ca2+]i in a co...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Others |
Language: | zh-TW |
Published: |
2009
|
Online Access: | http://ndltd.ncl.edu.tw/handle/43870494502929725430 |
id |
ndltd-TW-097TAJ05549009 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-TW-097TAJ055490092015-10-13T19:07:21Z http://ndltd.ncl.edu.tw/handle/43870494502929725430 Econazole-Induced Ca2+ Fluxes and Apoptosis in Human Oral Cancer Cells Econazole在人類口腔癌細胞誘導鈣離子湧出和細胞凋亡之研究 Li-Min Liu 劉立敏 碩士 大仁科技大學 製藥科技研究所 97 The effect of econazole on cytosolic free Ca2+ concentrations ([Ca2+]i) and viability was explored in human oral cancer cells (OC2), using the fluorescent dyes fura-2 and WST-1, respectively. Econazole at concentrations of and above 1 M increased [Ca2+]i in a concentration-dependent manner. The Ca2+ signal was reduced partly by removing extracellular Ca2+. The econazole-induced Ca2+ influx was sensitive to blockade of aristolochic acid (a phospholipase A2 inhibitor) and GF109203X (a protein kinase C inhibitor). In Ca2+-free medium, after treatment with 1 M thapsigargin (an endoplasmic reticulum Ca2+ pump inhibitor), 30 M econazole failed to induce a [Ca2+]i rise. Inhibition of phospholipase C with 2 M U73122 substantially suppressed econazole-induced [Ca2+]i rise. At concentrations between 5 and 70 M econazole killed cells in a concentration-dependent manner. The cytotoxic effect of 50 M econazole was not enhanced by prechelating cytosolic Ca2+ with BAPTA/AM. The ERK/MAPK inhibitor PD98059 (10 M) also enhanced 20 M econazole-induced cell death. Propidium iodide staining data suggest that econazole induced apoptosis between concentrations of 10-70 M. Collectively, in OC2 cells, econazole induced [Ca2+]i rises by causing Ca2+ release from the endoplasmic reticulum and Ca2+ influx from phospholipase A2/protein kinase C-regulated Ca2+ channels. Furthermore, econazole caused apoptosis that was regulated by Ca2+ and ERK/MAPK. Daih-Huang Kuo 郭代璜 2009 學位論文 ; thesis 110 zh-TW |
collection |
NDLTD |
language |
zh-TW |
format |
Others
|
sources |
NDLTD |
description |
碩士 === 大仁科技大學 === 製藥科技研究所 === 97 === The effect of econazole on cytosolic free Ca2+ concentrations ([Ca2+]i) and viability was explored in human oral cancer cells (OC2), using the fluorescent dyes fura-2 and WST-1, respectively. Econazole at concentrations of and above 1 M increased [Ca2+]i in a concentration-dependent manner. The Ca2+ signal was reduced partly by removing extracellular Ca2+. The econazole-induced Ca2+ influx was sensitive to blockade of aristolochic acid (a phospholipase A2 inhibitor) and GF109203X (a protein kinase C inhibitor). In Ca2+-free medium, after treatment with 1 M thapsigargin (an endoplasmic reticulum Ca2+ pump inhibitor), 30 M econazole failed to induce a [Ca2+]i rise. Inhibition of phospholipase C with 2 M U73122 substantially suppressed econazole-induced [Ca2+]i rise. At concentrations between 5 and 70 M econazole killed cells in a concentration-dependent manner. The cytotoxic effect of 50 M econazole was not enhanced by prechelating cytosolic Ca2+ with BAPTA/AM. The ERK/MAPK inhibitor PD98059 (10 M) also enhanced 20 M econazole-induced cell death. Propidium iodide staining data suggest that econazole induced apoptosis between concentrations of 10-70 M. Collectively, in OC2 cells, econazole induced [Ca2+]i rises by causing Ca2+ release from the endoplasmic reticulum and Ca2+ influx from phospholipase A2/protein kinase C-regulated Ca2+ channels. Furthermore, econazole caused apoptosis that was regulated by Ca2+ and ERK/MAPK.
|
author2 |
Daih-Huang Kuo |
author_facet |
Daih-Huang Kuo Li-Min Liu 劉立敏 |
author |
Li-Min Liu 劉立敏 |
spellingShingle |
Li-Min Liu 劉立敏 Econazole-Induced Ca2+ Fluxes and Apoptosis in Human Oral Cancer Cells |
author_sort |
Li-Min Liu |
title |
Econazole-Induced Ca2+ Fluxes and Apoptosis in Human Oral Cancer Cells |
title_short |
Econazole-Induced Ca2+ Fluxes and Apoptosis in Human Oral Cancer Cells |
title_full |
Econazole-Induced Ca2+ Fluxes and Apoptosis in Human Oral Cancer Cells |
title_fullStr |
Econazole-Induced Ca2+ Fluxes and Apoptosis in Human Oral Cancer Cells |
title_full_unstemmed |
Econazole-Induced Ca2+ Fluxes and Apoptosis in Human Oral Cancer Cells |
title_sort |
econazole-induced ca2+ fluxes and apoptosis in human oral cancer cells |
publishDate |
2009 |
url |
http://ndltd.ncl.edu.tw/handle/43870494502929725430 |
work_keys_str_mv |
AT liminliu econazoleinducedca2fluxesandapoptosisinhumanoralcancercells AT liúlìmǐn econazoleinducedca2fluxesandapoptosisinhumanoralcancercells AT liminliu econazolezàirénlèikǒuqiāngáixìbāoyòudǎogàilíziyǒngchūhéxìbāodiāowángzhīyánjiū AT liúlìmǐn econazolezàirénlèikǒuqiāngáixìbāoyòudǎogàilíziyǒngchūhéxìbāodiāowángzhīyánjiū |
_version_ |
1718041435973877760 |