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- 저자 : 라키브 압두르(Abdur Md. Rakib) (검색결과 2 건)
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Anti-proliferative Effects of β-ionone on Human Lung Cancer A-549 Cells
Sun Min Lee(이선민),Young Sook Kim(김영숙),Wook Jin Jang(장욱진),Abdur Md. Rakib(압두르 라키브),Tae Woo Oh(오태우),Boh Hyun Kim(김보현),So Young Kim(김소영),Jeong Ok Kim(김정옥),Yeong Lae Ha(하영래) 한국생명과학회 2013 생명과학회지 Vol.23 No.11
β-Ionone의 인체 비소폐암세포 A-549 cells (human non-small lung cancer A-549 cell)에 대한 anti-proliferative effect에 관한 연구를 수행하였다. A-549 cell에 다양한 농도의 β-ionone (1, 5, 10, and 15 μM)을 2, 4, 6일 간 처리 하고, 배양 2일에 A-549 cell의 생육억제와 관련되는 biochemical marker를 측정하였다. β-Ionone은 A-549 cell 생육을 dose와 time 의존적으로 저해하였다. β-Ionone 배양 2일의 IC50은 5.0 μg/ml이었다. β-Ionone은 농도 의존적으로 apoptosis를 유도하였다. β-Ionone은 p53, p21 및 Bax protein 수준을 증가시켰으나, Bcl-2 protein 발현은 억제시켰다. β-ionone은 cytosol cytochrome c 함량을 증가시켰고, caspase-9과 caspase-3 효소 활성증가를 유도하였다. 또한, β-ionone은 cPLA₂와 COX-2 protein level을 감소시켰다. 이와 같은 결과는 β-ionone의 A-549 cell에 대한 생육억제효과는 Bax와 Bcl-2 gene 발현을 reciprocal regulation하여 유도한 apoptosis와 cPLA₂ 및 COX-2 protein 발현 억제에 기인함을 의미한다. The anti-proliferative activity of β-ionone was investigated on human non-small lung cancer A-549 cells (designated A-549 cells). A-549 cells were treated with various concentrations of β-ionone (1, 5, 10, and 15 μM) for two, four, and six days. Biochemical markers related to the growth inhibition of A-549 cells by β-ionone were measured at the second day of incubation. β-Ionone inhibited the growth of A-549 cells by dose-and time-dependent manners, resulting in an IC50 of 5.0 μg/ml at the second day of incubation. β-Ionone induced apoptosis by a dose-dependent manner. β-Ionone increased levels of p53, p21, and Bax proteins, but suppressed expression of the Bcl-2 protein. Similarly, β-ionone enhanced cytochrome c release from the mitochondria to the cytosol, and induced activation of caspase-9 and -3. Additionally, β-ion-one reduced cPLA₂ and COX-2 protein levels. These results suggest that the β-ionone inhibits the proliferation of A-549 cells through reciprocal regulation of Bax and Bcl-2 gene expression and suppression of cPLA₂ and COX-2 protein expressions.
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신령버섯균사체 액체배양물의 자가분해에 의한 항암성 isoflavone-conjugated glycoprotein 분리
김소영(So Young Kim),김영숙(Young Suk Kim),장정순(Joung Soon Jang),김보현(Boh Hyun Kim),라키브 압두르(Abdur Md. Rakib),김곤섭(Gon Sup Kim),김정옥(Jeong Ok Kim),하영래(Yeong Lae Ha) 한국생명과학회 2014 생명과학회지 Vol.24 No.12
신령버섯균사체(Agaricus blazei mycelia: ABM)를 대두박이 함유된 액체배지에 배양하고, 이것을 자가분해(53 ℃, pH 5.5, 120 rpm, 3 hr)하여 항암성이 강한 isoflavone-conjugated glycoprotein (Gluvone 이라 명명)을 분리하였다. Gluvone 은 지금까지 알려진 당단백질과는 달리 분자량이 작고(9,400 Da), isoflavone이 결합되어 있다는 점이 다르다, Gluvone 은 60% 탄수화물(glucose, fructose, ribose), 31% 단백질 및 2% isoflavone (daidzein, genistein)으로 구성되어 있었다. 이 Gluvone은 S-180 복수암세포, MCF-7 인체유선암세포에 대한 독성이 강하였고, S-180 세포로 유발한 mouse 복수암을 강하게 억제하였다. Most beta-glucans obtained from various fruit bodies of mushrooms and mushroom mycelial cultures have high-molecular weight glycoproteins, conjugated with beta-glucans. We report that isoflavone- conjugated glycolproteins (designated as gluvone) were isolated and exhibited stronger anticarcinogenic activities. Agaricus blazei mycelia (ABM) was cultured in a liquid medium containing soybean flakes for 14 days. The liquid culture was autolyzed by incubating at 53℃ (pH 5.5) for 3 h. A crude glycoprotein (CGP) fraction with a cytotoxic effect on a mouse ascite cancer cell line (S-180) and a human breast cancer cell line (MCF-7) was isolated from the autolyzed ABM cultures by 80% ethanol treatment. Gluvone was isolated from the CGP with Sephadex G-75 column chromatography. It exhibited a stronger anticancer effect than CGP against the S-180 cell-induced female ICR mouse ascites carcinogenesis. Gluvone with 9,400 daltons was identified as a glycoprotein conjugated with isoflavone. According to HPLC and GC analysis, in conjunction with ¹H-NMR spectral analysis, it contained 60% carbohydrates (glucose, fructose, and ribose), 31% protein, and 2% isoflavone (daidzein and genistein), which is a novel material. These results indicate that a strong anticarcinogenic gluvone was isolated from the autolyzed product of a submerged liquid culture of ABM, suggesting that autolysis could be a useful tool to produce antitumor agents.
ScienceON
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