• 제목/요약/키워드: Diallyl disulfide (DADS)

검색결과 16건 처리시간 0.016초

Induction of Apoptosis in Human Leukemic Cell Lines by Diallyl Disulfide via Modulation of EGFR/ERK/PKM2 Signaling Pathways

  • Luo, Nian;Zhao, Lv-Cui;Shi, Qing-Qiang;Feng, Zi-Qiang;Chen, Di-Long;Li, Jing
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권8호
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    • pp.3509-3515
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    • 2015
  • Background: Diallyl disulfide (DADS) may exert potent anticancer action both in vitro and in vivo. Although its effects on cancer are significant, the underlying mechanisms remain unknown. In this study, we sought to elucidate possible links between DADS and pyruvate kinase (PKM2). Materials and Methods: $KG1{\alpha}$, a leukemia cell line highly expressing PKM2 was used with a cell counting kit (CCK)-8 and flow cytometry (FCM) to investigate the effects of DADS. Relationships between PKM2 and DADS associated with phosphorylation of EGFR, ERK1/2 and MEK, were assessed by western blot analysis. Results: In $KG1{\alpha}$ cells highly expressing PKM2, we found that DADS could affect proliferation, apoptosis and EGFR/ERK/PKM2 signaling pathways, abrogating EGF-induced nuclear accumulation of PKM2. Conclusions: These results suggested that DADS suppressed the proliferation of $KG1{\alpha}$ cells, providing evidence that its proapoptotic effects are mediated through the inhibition of EGFR/ERK/PKM2 signaling pathways.

Inhibitory effects of dietary antioxidants on the formation of carcinogenic polycyclic aromatic hydrocarbons in grilled pork

  • Wongmaneepratip, Wanwisa;Jom, Kriskamol Na;Vangnai, Kanithaporn
    • Asian-Australasian Journal of Animal Sciences
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    • 제32권8호
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    • pp.1205-1210
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    • 2019
  • Objective: The inhibitory effects of dietary antioxidants, diallyl disulfide (DADS) and quercetin, in marinade were investigated on the formation of carcinogenic polycyclic aromatic hydrocarbons (EPA priority 16 PAHs) in grilled pork. Methods: The formation of PAHs in grilled sirloin pork with different marinades after charcoal-grilling for 2 min/side were evaluated using high performance liquid chromatography with a photodiode array detector (HPLC-DAD). Results: Compared with the control marinade treatment (without antioxidant), the addition of DADS (500 mg/kg meat sample) in marinade significantly decreased benzo[a]pyrene (BaP) (100%) and heavy PAHs (84%) in charcoal-grilled pork, while the addition of quercetin at the same concentration could reduce 23% and 55% of BaP and heavy PAHs, respectively. Conclusion: The results of this study suggested that the addition of DADS in the marinade could be important in decreasing the levels of PAHs in grilled meat.

Diallyl Disulfide Prevents Cyclophosphamide-Induced Hemorrhagic Cystitis in Rats through the Inhibition of Oxidative Damage, MAPKs, and NF-κB Pathways

  • Kim, Sung Hwan;Lee, In Chul;Ko, Je Won;Moon, Changjong;Kim, Sung Ho;Shin, In Sik;Seo, Young Won;Kim, Hyoung Chin;Kim, Jong Choon
    • Biomolecules & Therapeutics
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    • 제23권2호
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    • pp.180-188
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    • 2015
  • This study investigated the possible effects and molecular mechanisms of diallyl disulfide (DADS) against cyclophosphamide (CP)-induced hemorrhagic cystitis (HC) in rats. Inflammation response was assessed by histopathology and serum cytokines levels. We determined the protein expressions of nuclear transcription factor kappa-B (NF-${\kappa}B$), inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), and tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$), oxidative stress, urinary nitrite-nitrate, malondialdehyde (MDA), and 8-hydroxy-2'-deoxyguanosine (8-OHdG). Finally, we studied the involvement of mitogen-activated protein kinases (MAPKs) signaling in the protective effects of DADS against CP-induced HC. CP treatment caused a HC which was evidenced by an increase in histopathological changes, proinflammatory cytokines levels, urinary nitrite-nitrate level, and the protein expression of NF-${\kappa}B$, COX-2, iNOS, TNF-${\alpha}$, p-c-Jun N-terminal kinase (JNK), and p-extracellular signal regulated kinase (ERK). The significant decreases in glutathione content and glutathione-S-transferase and glutathione reductase activities, and the significant increase in MDA content and urinary MDA and 8-OHdG levels indicated that CP-induced bladder injury was mediated through oxidative DNA damage. In contrast, DADS pretreatment attenuated CP-induced HC, including histopathological lesion, serum cytokines levels, oxidative damage, and urinary oxidative DNA damage. DADS also caused significantly decreased the protein expressions of NF-${\kappa}B$, COX-2, iNOS, TNF-${\alpha}$, p-JNK, and p-ERK. These results indicate that DADS prevents CP-induced HC and that the protective effects of DADS may be due to its ability to regulate proinflammatory cytokines production by inhibition of NF-${\kappa}B$ and MAPKs expressions, and its potent anti-oxidative capability through reduction of oxidative DNA damage in the bladder.

자가숙성발효 후 흑마늘의 S-Allyl-L-cystein, Diallyl Disulfide 및 Total Amino Acids 분석 (Determination of S-Allyl-L-cystein, Diallyl Disulfide, and Total Amino Acids of Black Garlic after Spontaneous Short-term Fermentation)

  • 김문수;김민주;방우석;김근성;박성수
    • 한국식품영양과학회지
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    • 제41권5호
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    • pp.661-665
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    • 2012
  • 남해산 생마늘 및 흑마늘의 일반성분 분석, 아미노산 함량 및 마늘의 주요 황 함유 생리활성물질인 수용성 $S$-allyl-L-cysteine(SAC) 및 지용성 diallyl-disulfide(DADS)의 함량을 분석하여 발효 전후 이들 성분에 대한 함량 변화를 비교하였다. 일반성분의 함량은 생마늘과 자가숙성발효마늘에서 큰 변화가 없었다. 흑마늘 내의 17종 아미노산중 13종 아미노산 함량이 증가하였다. 특히 함황아미노산인 cysteine 및 methionine의 함량(mg/100 g)이 각각 $295.25{\pm}5.08$에서 $381.86{\pm}14.86$로, $47.2{\pm}3.92$에서 $66.6{\pm}1.08$로 증가하였고, histidine의 함량(mg/100 g)은 $319.19{\pm}5.42$에서 $796.62{\pm}7.01$로 크게 증가하였다. SAC 및 DADS의 함량(${\mu}g/g$)은 $245.35{\pm}1.35$에서 $522.51{\pm}1.19$로, $0.275{\pm}0.015$에서 $8.710{\pm}0.45$로 각각 2배와 30배 이상으로 생마늘에 비하여 흑마늘 내의 함량이 매우 큰 폭으로 증가하였다. 이러한 현상은 자가숙성발효라는 제조과정에서 생마늘의 alliin이 1차적으로 효소와 기타 화학적 반응에 의해 allicin으로 전환된 후, allicin으로부터 다른 일련의 복합적인 화학반응에 의하여 많은 양의 SAC 및 DADS가 생성된 결과에 의하여 나타났다고 할 수 있다. 또한 자가숙성 발효 과정 중 이러한 SAC 및 DADS 등과 같은 마늘 내 함황화합물들의 지표물질 생성 확인은 인체에 유익한 생리활성을 보유한 많은 종류의 다른 함황화합물들이 동시에 흑마늘 내에서 생성되었음을 암시한다. 그러나 흑마늘의 제조과정은 85~95%의 습도, $60{\sim}70^{\circ}C$에서 40여일 정도 장기간의 숙성이 필요하다. 이러한 숙성과정은 특정 미생물 또는 효소를 이용하여 단축할 필요가 있다. 또한 SAC 및 DADS 등과 같이 생리활성이 높은 함황 화합물들의 함량을 증가시킬 수 있는 새로운 가공법에 대한 연구가 필요하다.

Mixed-type Inhibition of Human Hepatic Cytochrome P450 1-Catalyzed Ethoxyresorufin O-deethylation by Volatile Allyl Sulfides

  • Kim, Hyun-Jung;Chun, Hyang-Sook
    • Food Science and Biotechnology
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    • 제14권2호
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    • pp.297-300
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    • 2005
  • Effects of allyl sulfides on kinetic behavior of cytochrome P450 1 (CYP1)-catalyzed ethoxyresorufin O-deethylase (EROD) activity were studied using microsomes from benzo[a]pyrene-treated human hepatoma cells. Apparent $K_m$ and $V_{max}$ values were calculated as $2.8\;{\mu}M$ and $3.0\;{\mu}mol$ resorufin/min/mg protein based on Lineweaver-Burk plot of microsomal EROD activity, respectively. Diallyl disulfide (DADS) and diallyl trisulfide (DATS) affected $K_m$ and $V_{max}$ values of EROD activity and acted as mixed-type inhibitors for CYP1 isozymes. Apparent Ki values of DADS and DATS were calculated as 1.07 and 0.88 mM, respectively, by re-plotting slopes of Lineweaver-Burk plot and inhibitor concentrations.

RAW 264.7 대식세포에서 마늘 유래 황 함유 화합물에 의한 요산 유도 inflammasome 활성화의 억제는 ROS 생성 차단과 연관성이 있음 (Suppression of Monosodium Urate-induced NLRP3 Inflammasome Activation by Garlic-derived Sulfur-containing Phytochemicals is Associated with Blocking ROS Generation in RAW 264.7 Macrophages)

  • 김민영;최영현
    • 생명과학회지
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    • 제33권4호
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    • pp.349-356
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    • 2023
  • 만성 염증성 관절염 질환인 통풍은 고요산혈증을 특징으로 하며 NLRP3 inflammasome의 활성화에 따른 IL-1β와 같은 염증성 cytokine 방출과 연관된 MSU에 대한 염증 반응에 의해 유발될 수 있다. 마늘에 함유된 황 함유 화합물은 다양한 질병에 대한 잠재적인 유익한 약리학적 효능을 가지지만, NLRP3 inflammasome 활성화와 연관된 통풍 억제에 대한 효능은 현재까지 입증되지 않았다. 본 연구에서는 대표적인 마늘 유래 황화합물인 DADS와 DATS가 MSU에 의한 NLRP3 inflammasome 활성을 억제할 수 있는지를 조사하였다. 본 연구의 결과에 의하면, 비세포 독성 조건에서 DADS와 DATS는 LPS가 전처리된 RAW 264.7 대식세포에서 MSU에 대한 반응으로 증가된 NO의 생성과 IL-1β 유리를 유의적으로 차단하였다. DADS와 DATS는 또한 증가된 NLRP3, ASC, caspase-1 p20 및 IL-1β의 발현을 감소시켰으며, 이는 MSU로 유도된 LRP3 inflammasome 활성화가 DADS와 DATS에 의해 억제되었음을 의미한다. 아울러, DADS와 DATS는 NLRP3 inflammasome 활성화에 상위 신호로 작용하는 산화적 스트레스를 차단했으며 ROS 생성을 제거한다는 사실에서 입증되었다. 결론적으로, 본 연구의 결과는 DADS와 DATS가 ROS/NLRP3 경로를 억제하여 inflammasome 활성화를 차단함으로서 NLRP3 의존성 통풍성 관절염 치료를 위한 잠재력이 우수함을 의미한다.