• 제목/요약/키워드: Lung cancer cells

검색결과 994건 처리시간 0.025초

식품표시 관련 교육경험에 따른 중학생들의 식품표시에 대한 인식과 활용실태 (Physical and Chemical Composition, Anti-Microbial Activity and Cytotoxicity of Kiwifruit Skin)

  • 허북구;박용서;임명희;오경택;조장용
    • 한국지역사회생활과학회지
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    • 제20권1호
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    • pp.61-69
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    • 2009
  • This study was conducted to examine the chemical composition of kiwifruit skin, and to est its anti-microbial activities and cytotoxicities, thus, exploring ways for the economic utilization of kiwifruit skin. Four varieties of kiwifruit were examined: Daeheung, Bidan, Haegeum No.1 and Hayward. Vitamin C content in the fruit skins of Bidan, Daeheung, Haegeum No.1 and Hayward were 72.44, 67.22, 62.51 and 61.44mg/100g, respectively. Total amino acids content in the fruit skins of Bidan, Haegeum No.1, Hayward and Daeheung ere 808.31, 706.02, 629.07 and 464.83mg/100g dry weight, respectively. K and Ca content ere $17.20-45.70{\mu}g/mL$ and $4.58-10.15{\mu}g/mL$. While, other inorganic matter contents were below $4.89{\mu}g/mL$. Anti-microbial activity of kiwifruit skin extracts, in terms of the diameter of inhibition zone when tested against five gram positive and three gram negative microbial trains (even in the concentration of 2,000mg/L), was less than 14.1mm. The hyperplasia inhibition of lung cancer cells by methanol extracts from Bidan and Haegeum No.1 using concentrations of 800mg/L were 27.7% and 14.5%, however, those from Daeheung and Hayward were below 3% Consequently, it will be useful to know that kiwifruit skin can be added to processed goods which demand for higher concentrations of vitamin C, amino acids, K and Ca.

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Experimental Study on Residual Tumor Angiogenesis after Cryoablation

  • Ma, Chun-Hua;Jiang, Rong;Li, Jin-Duo;Wang, Bin;Sun, Li-Wei;Lv, Yuan
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권6호
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    • pp.2491-2494
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    • 2014
  • Objective: To explore the mechanism and significance of tumor angiogenesis by observing changes of microvessel density (MVD) and expression of vascular endothelial growth factor (VEGF) in residual tumor tissues after cryoablation. Materials and Methods: A total of 18 nude mice xenograft models with transplanted lung adenocarcinoma cell line A549 were established and randomly divided into 3 groups when the maximum diameter of tumor reached 1 cm: control, cisplatin (DDP) and cryoablation. The nude mice were sacrificed after 21-d cryoablation to obtain the tumor tissues. Then immunohistochemistry was applied to determine MVD and the expression of VEGF in tumor tissues. Results: The tumor volumes of control group, DDP group and cryoablation group were $1.48{\pm}0.14cm^3$, $1.03{\pm}0.12cm^3$ and $0.99{\pm}0.06cm^3$ respectively and the differences were significant (P<0.01), whereas MVD values were $21.1{\pm}0.86$, $24.7{\pm}0.72$ and $29.2{\pm}0.96$ (P<0.01) and the positive expression rates of VEGF were $36.2{\pm}1.72%$, $39.0{\pm}1.79%$ and $50.8{\pm}2.14%$ (P<0.01), respectively, showing that MVD was proportional to the positive expression of VEGF (r=0.928, P<0.01). Conclusions: Cryoablation can effectively inhibit tumor growth, but tumor angiogenesis significantly increases in residual tumors, with high expression of VEGF playing an important role in the residual tumor angiogenesis.

Ginsenoside Rg3, a promising agent for NSCLC patients in the pandemic: a large-scale data mining and systemic biological analysis

  • Zhenjie Zhuang;Qianying Chen;Xiaoying Zhong;Huiqi Chen;Runjia Yu;Ying Tang
    • Journal of Ginseng Research
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    • 제47권2호
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    • pp.291-301
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    • 2023
  • Introduction: Non-small cell lung cancer (NSCLC) patients are particularly vulnerable to the Coronavirus Disease-2019 (COVID-19). Currently, no anti-NSCLC/COVID-19 treatment options are available. As ginsenoside Rg3 is beneficial to NSCLC patients and has been identified as an entry inhibitor of the virus, this study aims to explore underlying pharmacological mechanisms of ginsenoside Rg3 for the treatment of NSCLC patients with COVID-19. Methods: Based on a large-scale data mining and systemic biological analysis, this study investigated target genes, biological processes, pharmacological mechanisms, and underlying immune implications of ginsenoside Rg3 for NSCLC patients with COVID-19. Results: An important gene set containing 26 target genes was built. Target genes with significant prognostic value were identified, including baculoviral IAP repeat containing 5 (BIRC5), carbonic anhydrase 9 (CA9), endothelin receptor type B (EDNRB), glucagon receptor (GCGR), interleukin 2 (IL2), peptidyl arginine deiminase 4 (PADI4), and solute carrier organic anion transporter family member 1B1 (SLCO1B1). The expression of target genes was significantly correlated with the infiltration level of macrophages, eosinophils, natural killer cells, and T lymphocytes. Ginsenoside Rg3 may benefit NSCLC patients with COVID-19 by regulating signaling pathways primarily involved in anti-inflammation, immunomodulation, cell cycle, cell fate, carcinogenesis, and hemodynamics. Conclusions: This study provided a comprehensive strategy for drug discovery in NSCLC and COVID-19 based on systemic biology approaches. Ginsenoside Rg3 may be a prospective drug for NSCLC patients with COVID-19. Future studies are needed to determine the value of ginsenoside Rg3 for NSCLC patients with COVID-19.

산천어(Oncorhynchus masou) 에탄올 추출물의 in vitro 및 in vivo에서 항암활성 (Anticancer Activity on Ethanolic Extract of the Masou Salmon (Oncorhynchus masou) in vitro and in vivo)

  • 오현택;정미자;함승시
    • 한국식품영양과학회지
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    • 제38권2호
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    • pp.142-145
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    • 2009
  • 산천어 70% 에탄올 추출물(MSE)이 암세포 성장억제와 Balb/c 마우스에서의 종양 성장 억제에 미치는 영향을 알아보았다. 인간 자궁암(HeLa), 간암(HepG2), 유방암(MCF-7), 위암(AGS), 폐암(A549) 세포 그리고 인간신장 정상세포 (293)에 MSE을 처리했을 때 세포생존율이 감소하였고 이들 감소율을 MTT assay로 알아보았다. MSE는 정상세포 293에서보다 인간 암세포주인 MCF-7, A549, HepG2, AGS 그리고 HeLa세포에서 현저하게 더 높은 세포독성이 나타났다. 시료 최고농도인 1 mg/mL를 인간 폐암세포(A549), 유방암세포(MCF-7), 간암세포(HepG2) 및 위암세포(AGS)에 처리한 결과 각각 9.2%, 12.7%, 14.6% 및 16.9%의 세포 생존율을 나타내었다. 더하여 복수암 세포(sarcoma-180)를 이용한 실험동물(Balb/c mice)에서의 고형암 성장 억제 효과를 알아보았으며, 각각 25 mg/kg body weight와 250 mg/kg body weight의 MSE를 투여하였을 때 종양 성장 억제율은 각각 44.7%와 55.7%였다. 따라서 우리는 MSE가 암 예방을 위해 인간에게 유익한 기능성 소재일 것이라는 것을 제안하였다.

Association of p53 Expression with Metabolic Features of Stage I Non-Small Cell Lung Cancer

  • Kang, Shin-Myung;Koh, Won-Jung;Suh, Gee-Young;Chung, Man-Pyo;Han, Joung-Ho;Kim, Ho-Joong;Kwon, O-Jung;Um, Sang-Won
    • Tuberculosis and Respiratory Diseases
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    • 제71권6호
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    • pp.417-424
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    • 2011
  • Background: Recent evidences have revealed metabolic functions of p53 in cancer cells; adaptation or survival to metabolic stress and metabolic shift toward oxidative phosphorylation. However, further studies in clinical setting are needed. We investigated whether p53 protein expression, as a surrogate marker for loss of p53 function, is associated with metabolic features of stage I non-small cell lung cancer (NSCLC), focusing on tumor necrosis and maximal standardized uptake value (SUVmax) on $^{18}F$-fluorodeoxyglucose positron emission tomography. Methods: Clinical information was obtained from retrospective review of medical records. p53 expression was assessed by immunohistochemical staining. Results: p53 protein expression was detected in 112 (46%) of 241 NSCLC cases included in this study. p53 expression was independently associated with the presence of necrosis (odds ratio [OR], 2.316; 95% confidence interval [CI], 1.215~4.416; p=0.011). Non-adenocarcinoma histology (OR, 8.049; 95% CI, 4.072~15.911; p<0.001) and poorly differentiation (OR, 6.474; 95% CI, 2.998~13.979; p<0.001) were also independently associated with the presence of necrosis. However, p53 expression was not a significant factor for SUVmax. Conclusion: p53 protein expression is independently associated with the presence of necrosis, but not SUVmax.

비소세포 폐암 환자 조직에서 Hsp90α, Hsp90β, GRP94의 발현과 임상병리학적 특성과의 상관관계 분석 (Analysis of the Correlation between Expressions of HSP90α, HSP90β, and GRP94, and the Clinicopathologic Characteristics in Tissues of Non-Small Cell Lung Cancer Patients)

  • 김미경
    • 대한임상검사과학회지
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    • 제49권4호
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    • pp.460-469
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    • 2017
  • 열충격 단백질(heat shock proteins, HSPs)은 다양한 종양에서 과발현 되고, 종양이 형성되는 과정이나 그 예후에 영향을 주며, 분자량에 따라 HSP27, HSP60, HSP90, HSP100 등으로 구분한다. Heat shock protein90은 세포 내 불안정한 단백질을 보호하는 역할을 통해 질병의 유지에 기여하는데, 정상 조직에 비해 종양 세포에서 높은 수준으로 발현된다고 보고되었다. 이에 본 연구에서는 우리나라 사망원인 1위인 폐암 중 비소세포 폐암에서 Heat shock protein90 family 발현과 비소세포 폐암환자의 임상적 특징과의 상관관계를 분석하여 종양의 생물학적 표지자로서의 가능성을 조사하였다. HSP90 family의 발현과 임상병리학적 특성 및 생존율과의 상관관계를 분석한 결과 $HSP90{\alpha}$는 림프혈관강 침윤이 되지 않은 환자에서 높은 발현을 보였고(p=0.014), $HSP90{\beta}$ 은 조직학적 형태에서 편평상피세포 암종에서 높은 발현을 보였으며(p=0.003), GRP94 은 분화도가 낮을수록 높은 발현을 나타내었다(p=0.048). 생존율은 $HSP90{\alpha}$, $HSP90{\beta}$, GRP94 모두 발현 차이에 대한 유의성이 없었다. 본 연구를 통해 miRNA-126, miRNA-155, miRNA-200c의 발현은 비소세포 폐암의 진단을 위한 생물학적 표지자 및 예후 인자로서 사용될 수 있을 것으로 사료된다. 그리고 비소세포 폐암의 치료용으로 HSP90 family가 고려되어야 할 것이며, GRP94가 종양의 예후예측을 위한 중요한 인자라 사료된다.

Survival of Brain Metastatic Patients in Yazd, Iran

  • Akhavan, Ali;Binesh, Fariba;Heidari, Samaneh
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권8호
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    • pp.3571-3574
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    • 2014
  • Background: Brain metastasis occurs when cancerous cells come from a known (or sometimes an unknown) primary tumor to the brain and implant and grow there. This event is potentially lethal and causes neurologic symptoms and signs. These patients are treated in order to decrease their neurologic problems, increase quality of life and overall survival. Materials and Methods: In this study we evaluated clinical characteristics of 206 patients with brain metastases referred to our center from 2004 to 2011. Results: The mean age was 53.6 years. The primary tumors were breast cancer (32%), lung cancer (24.8%), lymphoma (4.4%), sarcoma (3.9%), melanoma (2.9%), colorectal cancer (2.4%) and renal cell carcinoma (1.5%). In 16.5% of the patients, brain metastasis was the first presenting symptom and the primary site was unknown. Forty two (20.4%) patients had a single brain metastasis, 18 patients (8.7%) had two or three lesions, 87 (42.2%) patients had more than three lesions. Leptomeningeal involvement was seen in 49 (23.8%) patients. Thirty five (17%) had undergone surgical resection. Whole brain radiation therapy was performed for all of the patients. Overall survival was 10.1 months (95%CI; 8.65-11.63). One and two year survival was 27% and 12% respectively. Conclusions: Overall survival of patients who were treated by combination of surgery and whole brain radiation therapy was significantly better than those who were treated with whole brain radiation therapy only [13.8 vs 9.3 months (p=0.03)]. Age, sex, primary site and the number of brain lesions did not show significant relationships with overall survival.

새싹 잔대 잎과 뿌리의 항산화 및 항암 효과 (Antioxidant and anticancer activities of Adenophora triphylla leaf and root extracts)

  • 윤선영;김기현;현태경
    • Journal of Plant Biotechnology
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    • 제50권
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    • pp.137-141
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    • 2023
  • 잔대(Adenophora triphylla var. japonica)의 뿌리는 비만, 암, 염증을 예방하는 데 사용되는 귀중한 약용 자원으로 사용되지만, 어린잎이나 순은 식재료로 사용되고 있다. 본 연구에서는 A. triphylla 뿌리와 잎에서 얻은 70% 에탄올 추출물의 항산화 및 항암 효과를 비교 평가하였다. 잎 추출물이 뿌리 추출물보다 강력한 DPPH-radical 소거 활성, 환원력 및 ORAC 값을 나타냈다. 또한, 인체 암세포주에서 잔대 추출물의 세포독성 사멸 효과를 조사한 결과, 잎 추출물이 A549 (폐암), LNcaP (전립선암), SKOV3 (난소암) 및 Caco-2 (대장암) 세포에서 강력한 항암 성분의 공급원임을 보여주었다. 이러한 결과는 뿌리뿐만 아니라 잎도 제약 산업에서 기능성 소재의 귀중한 공급원이 될 수 있음을 시사한다.

비파 부위별 에탄올 추출물의 항산화 활성 및 암세포 증식 억제효과 (Effects of Loquat (Eriobotrya japonica Lindl.) Ethanol Extracts of Different Aerial Parts on Antioxidant Activity and Antiproliferation of Human Cancer Cells)

  • 이환;김연경;이현주;이재준
    • 한국지역사회생활과학회지
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    • 제27권2호
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    • pp.211-220
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    • 2016
  • 본 연구는 비파 씨, 과육 및 잎의 부위별 에탄올 추출물이 항산화효과 및 암세포 증식 억제효과를 알아보고자 실시하였다. 총 폴리페놀과 총 플라보노이드 함량은 비파 잎 에탄올 추출물에서 가장 높게 나타났으며, 다음으로는 비파 씨, 과육 추출물 순으로 나타났다. 비파 씨, 과육 및 잎 추출물의 DPPH radical 소거능의 $IC_{50}$값은 0.049, 0.063, 0.042 mg/mL로 비파 씨와 잎이 과육에 비하여 항산화 활성이 좋은 것으로 나타났다. Rancimat에 의한 항산화능 측정 결과도 비파 씨와 잎 추출물이 높게 나타났다. 비파 부위별 추출물의 암세포 성장억제 효과를 측정한 결과, 비파 씨 에탄올 추출물은 위암과 폐암세포는 농도 의존적으로 저하시켰으나, 간암세포의 경우는 $400{\mu}g/mL$부터 유의하게 저하시켰다. 비파 잎과 과육 에탄올 추출물은 고농도에서 암세포 증식 억제효과가 나타났다. 이상의 결과 비파 부위별 에탄올 추출물의 항산화 및 암세포 증식 억제효과는 모든 부위에서 나타났으며, 특히 비파 씨 추출물이 가장 좋은 결과를 보였다.

호박잎 추출물의 in vitro 항산화 및 항암 효과 (Antioxidant and Anti-cancer Activities of Squash (Cucurbita moschata Duch.) Leaf Extract In vitro)

  • 곽영은;주지형
    • 한국식품과학회지
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    • 제45권6호
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    • pp.770-776
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    • 2013
  • 본 연구에서는 호박잎 추출물의 총 폴리페놀 함량, 총 플라보노이드 함량, radical 소거활성 등과 같은 항산화성과, 암세포 증식억제 활성, 사멸유도 활성, 부착억제 활성 등과 같은 항암성을 in vitro 수준에서 검증하였다. 호박잎의 총 폴리페놀 함량은 263.4 mg gallic acid equivalent/100 g, 총 플라보노이드 함량은 73.6 mg quercetin equivalent/100 g으로 측정되었다. 호박잎 추출물은 300 ${\mu}g/mL$ 농도에서 69.4%의 ABTS radical 소거 활성이 있었는데, 이는 호박잎 추출물과 같은 농도에서의 L-ascorbic acid 활성(94.5%)의 73.4%에 해당되는 수준이었다. 한편 호박잎 추출물은 37.5, 75, 150 ${\mu}g/mL$ 농도에서 HCT116 대장암 세포와 H1299 폐암 세포의 증식을 60.6-87.9% 억제하는 농도 의존적 활성이 있었으며 이는 부분적으로 apoptosis를 유도하기 때문인 것으로 생각된다. 또한 호박잎 추출물은 150 ${\mu}g/mL$ 농도에서 HCT116 세포와 H1299 세포의 부착을 16.8-28.4% 억제하는 활성이 있었다. 이상의 결과를 통하여 호박잎 추출물은 in vitro 수준에서 항산화성 및 항암성을 가지는 것으로 생각되며, 이러한 연구 결과는 향후 관련 작용기전을 규명하기 위한 기초 자료로 이용될 수 있을 것으로 기대된다.