• 제목/요약/키워드: Lung Carcinoma

검색결과 1,211건 처리시간 0.034초

In vitro studies of anti-inflammatory and anticancer activities of organic solvent extracts from cultured marine microalgae

  • Samarakoon, Kalpa W.;Ko, Ju-Young;Shah, Md. Mahfuzur Rahman;Lee, Ji-Hyeok;Kang, Min-Cheol;Kwon, O-Nam;Lee, Joon-Baek;Jeon, You-Jin
    • ALGAE
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    • 제28권1호
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    • pp.111-119
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    • 2013
  • Marine microalgae are a promising source of organisms that can be cultured and targeted to isolate the broad spectrum of functional metabolites. In this study, two species of cyanobacteria, Chlorella ovalis Butcher and Nannchloropsis oculata Droop, one species of bacillariophyta, Phaeoductylum tricornutum Bohlin, and one species of Dinophyceae, Amphidinium carterae (Hulburt) were cultured and biomasses used to evaluate the proximate comical compositions. Among the determined proximate chemical compositions of the cultured marine microalgae, the highest content of crude proteins and lipids were exhibited in P. tricornutum and A. carterae, respectively. Solvent-solvent partition chromatography was subjected to fractionate each of the cultured species and separated n-hexane, chloroform, ethyl acetate, and aqueous fractions. Nitric oxide production inhibitory level (%) and cytotoxicity effect on lipo-polysaccharide-induced RAW 264.7 macrophages were performed to determine the anti-inflammatory activity. N. oculata hexane and chloroform fractions showed significantly the strongest anti-inflammatory activity at $6.25{\mu}g\;mL^{-1}$ concentration. The cancer cell growth inhibition (%) was determined on three different cell lines including HL-60 (a human promyelocytic leukemia cell line), A549 (a human lung carcinoma cell line), and B16F10 (a mouse melanoma cell line), respectively. Among the extracts, C. ovalis ethyl acetate and A. carterae chloroform fractions suppressed the growth of HL-60 cells significantly at 25 and $50{\mu}g\;mL^{-1}$ concentrations. Thus, the cultured marine microalgae solvent extracts may have potentiality to isolate pharmacologically active metabolites further using advance chromatographic steps. Hence, the cultured marine microalgae can be described as a good candidate for the future therapeutic uses.

감귤 돌연변이체의 인간 암세포 증식 억제와 자연사멸 증강효과 (Anticancer Effect of Citrus Fruit Prepared by Gamma Irradiation of Budsticks)

  • 김지혜;김민영
    • 생명과학회지
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    • 제25권9호
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    • pp.1051-1058
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    • 2015
  • 본 연구에 평가된 감귤 돌연변이는 기존 궁천조생 품종에서 유래된 방사선 돌연변이체로 선행 연구에서 다양한 생리활성 및 기능성 성분이 함유되어 있다는 것을 보고한 이래로, 감귤 돌연변이의 항암 제제로써 활용 가능성을 검증하였다. 여러 암종(HCT116, 인간대장암세포; A375, 인간흑색종세포; Hela, 인간자궁경부암세포; MCF-7, 인간유방암세포; A549, 인간폐암세포; HepG2, 인간간암세포)을 대상으로 감귤 돌연변이의 항암 활성을 기존 궁천조생 품종(방사선 무처치군)과 비교 분석한 결과 그 효용 가치가 높게 나타났을 뿐 아니라 자연사멸 유도 메커니즘을 탐색하였을 때 감귤 돌연변이에 의해 야기된 apoptosis에 IAP family의 발현 저해와 NO pathway 증강에 따라 세포 고사가 촉진됨을 확인할 수 있었다. 또한 감귤 돌연변이가 정상 세포에 대한 독성을 유발하지 않는 것으로 나타나, 암세포 선택성이 높은 chemopreventive 및 chemotherapeutic agent로 개발 가능할 것으로 예상되며 이를 위해 향후 보다 정밀한 자연사멸의 분자생물학적 기전 규명이 수반되어야 할 것으로 사료된다.

선학초(짚신나물)에 의한 in vitro와 in vivo에서의 암세포사멸 기전 탐색 (Mechanism of Apoptosis & Tumor Growth Inhibition of Agrimonia pilosa Ledebour(APL) in vitro and in vivo)

  • 최순자;백종우;박종형;전찬용;최유경;고성규
    • 대한한방내과학회지
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    • 제30권2호
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    • pp.399-409
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    • 2009
  • Objectives : The aim of this study was to experiment the antitumor activity of Agrimonia pilosa Ledebour (APL) in human stomach cancer (AGS) cell lines (in vitro) and male C57BL/6J mouse (in vivo). Methods : The effects of the ethanol extract from the plant on several transplantable rodent tumors were investigated in vitro by 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxy phenyl)-2-(4-sulfophenyl)-2H-tetrazolium, inner salt (MTS) assay. DNA content analysis and Western blot analysis. Agrimonia pilosa Ledebour (APL) was given to rats with Lewis Lung Carcinoma (LLC) cells. The experimental rats were divided into 3 groups in vivo. Saline was injected into the abdominal cavity in the first group, 50 mg/kg APL was injected into the abdominal cavity in the second group and 100 mg/kg was injected into the abdominal cavity in the third group. After that, we checked their tumor volume periodically. Results : At first, human gastric cancer (AGS) cell lines (in vitro) showed decreased cell viability, and increased $sub-G_1$ contents. When we experimented rat intestinal epithelial (RIE)l as same condition, this result didn't show. With this, compared to normal cells, Agrimonia pilosa Ledebour (APL) led selectively to the extinction of cells only in human gastric cancer. Moreover, we showed that the traditional herbal medicine APL induced caspase-dependent apoptosis in AGS cells. Next, APL inhibited the growth of LLC-bearing mouse tumor. However, we could not verify APL induced caspase-dependent apoptosis in LLC-bearing mouse tumor. Conclusions : The roots of Agrimonia pilosa Ledebour (APL) contain some antitumor constituents.

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하대정맥과 우심방의 종양혈전을 동반한 신평활근육종 - 1예 보고 - (Renal Leiomyosarcoma with an Extension of the Tumor Thrombi into the IVC and the RA -One of case -)

  • 정기천;이철범;전순호;김상헌;김혁;정원상;김영학;강정호
    • Journal of Chest Surgery
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    • 제36권12호
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    • pp.970-974
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    • 2003
  • 하대정맥과 우심방의 종양혈전을 동반한 신세포암종은 지난 10년 동안 근치적 신절제술과 함께 체외순환을 이용한 종양혈전 제거술로 예후가 많이 증진되었다. 우리는 30세 여자에서 우신평활근육종과 종양혈전이 신정맥 상부의 하대정맥과 우심방까지 성장하고 혈액혈전으로 신정맥 하부의 하대정맥과 양측 장골정맥이 폐쇄된 1예를 진단하고 근치적 우신절개술 후 체외순환을 이용한 초저체온 순환 정지하에서 하대정맥과 우심방을 절개하여 종양혈전과 혈액 혈전 모두를 제거하였다. 수술 12개월 후 후복막강과 하대정맥의 국소적 재발로 우심방까지 성장한 종양을 다시 제거하였다. 환자는 두 번째 수술 11개월 후 폐 전이 및 간정맥에서 종양이 재발하여 우심방과 우심실까지 성장하여 사망하였다.

능이버섯(Sarcodon aspratus)의 화학성분과 생리활성 (Chemical Components and Physiological Activities of Neungee Mushroom (Sarcodon aspratus))

  • 주옥수
    • 한국식품저장유통학회지
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    • 제15권6호
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    • pp.864-871
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    • 2008
  • 본 연구는 능이버섯의 식품영양학적 및 기능성을 평가하기 위하여 능이버섯의 화학성분과 추출물에 대한 생리활성을 확인하였다. 능이버섯은 수분 85.73%, 조단백질 1.78%, 조지질 1.87%, 회분 1.27%로 나타났으며, 아미노산 중 alanine(90.11 mg%), 지방산 중 linoleic acid(39.09 mg%), 유기산 중 tartaric acid(75.47 mg%) 및 유리당 중 glucose (1,680 mg%)의 함량들이 가장 높게 나타났다. 능이버섯 추출물에 대한 전자 소거능 및 아질산염 소거능은 농도가 증가함에 따라 활성이 증가하였고, $800\;{\mu}g/mL$ 처리 시 각각 46.2% 및 77.8%로 가장 높게 나타났다. 능이버섯 추출물은 역시 농도가 증가함에 따라 간 지질에 대한 과산화 억제 활성이 증가하였고, $1,500\;{\mu}g/mL$ 처리 시 $2,347\;{\mu}mol$ MDA/g liver로 가장 높게 나타났다. 능이버섯추출물을 첨가하여 linoleic acid에 대한 항산화 활성을 살펴본 결과, 저장 7일 후에 POV가 197.4 meq/kg이하로서 대조구에 비하여 약간의 항산화효과가 있었다. 암세포에 대한 능이버섯 메탄올 추출물의 세포독성에서, 폐암 세포주인 A549에 대한 증식 억제율은 능이버섯 메탄올 추출물 $100\;{\mu}g/mL$ 처리시 96%로 가장 높게 나타났다.

Corosolic acid의 유방암세포 증식 및 전이에 미치는 영향 (Effect of corosolic acid on apoptosis and angiogenesis in MDA-MB-231 human breast cancer cells)

  • 손건호;황진현;김동하;조영은
    • Journal of Nutrition and Health
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    • 제53권2호
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    • pp.111-120
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    • 2020
  • 본 연구는 인간 유래 유방 암세포 MDA-MB-231를 대상으로 CA에 의한 세포사멸, 세포 이동 및 침윤 효과를 조사하였다. 암세포의 증식 억제 효과는 CA 농도 의존적으로 증식률이 감소하는 것을 확인하였다. CA에 의한 apoptosis 양성 세포를 확인하기 위해 DAPI stain를 진행한 결과, CA 농도 의존적으로 죽은 세포를 확인하였다. MDA-MB-231 세포에서 CA에 의한apoptosis marker 단백질 발현 증가와 ROS production증가를 확인할 수 있었다. 또한 CA에 의한 MDA-MB-231의 세포 이동률이 유의적으로 감소하는 것을 확인하였다. 마지막으로 세포의 이동과 전이 능력 또한 CA를 처리한 군에서 통계적으로 감소하는 것을 확인하였다. 본 연구 결과를 통해서 CA의 암세포 증식률 억제, 세포사멸 증가, 그리고 세포 이동 및 전이 억제 효과가 나타나는 것을 확인했으며, 이 결과를 통해서 향후 유방암에 대한 항암제로 개발될 수 있는 가능성을 가지고 있는 것으로 사료된다.

Genetic Variants at 6p21.1 and 7p15.3 Identified by GWASs of Multiple Cancers and Ovarian Cancer Risk: a Case-control Study in Han Chinese Women

  • Li, Da-Ke;Han, Jing;Liu, Ji-Bin;Jin, Guang-Fu;Qu, Jun-Wei;Zhu, Meng;Wang, Yan-Ru;Jiang, Jie;Ma, Hong-Xia
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권1호
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    • pp.123-127
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    • 2014
  • A recent study summarized several published genome-wide association studies (GWASs) of cancer and reported two pleiotropic loci at 6p21.1 and 7p15.3 contributing to multiple cancers including lung cancer, noncardia gastric cancer (NCGC), and esophageal squamous-cell carcinoma (ESCC) in Han Chinese. However, it is not known whether such genetic variants have similar effects on the risk of gynecologic cancers, such as ovarian cancer. Hence, we explored associations between genetic variants in 6p21.1 and 7p15.3 and ovarian cancer risk in Han Chinese women. We performed an independent case-control study by genotyping the two loci (rs2494938 A > G at 6p21.1 and rs2285947 A > G at 7p15.3) in a total of 377 ovarian cancer cases and 1,034 cancer-free controls using TaqMan allelic discrimination assay. We found that rs2285947 at 7p15.3 was significantly associated with risk of ovarian cancer with per allele odds ratio (OR) of 1.33 [95% confidence interval (CI): 1.08-1.64, P=0.008]. However, no significant association was observed between rs2494938 and ovarian cancer risk. Our results showed that rs2285947 at 7p15.3 may also contribute to the development of ovarian cancer in Han Chinese women, further suggesting pleiotropy of 7p15.3 in multiple cancers.

위암 환자에 발생한 동시성과 이시성암의 임상병리학적 특성 (The Clinicopathologic Features of Synchronous and Metachronous Cancer in Patients with Gastric Cancer)

  • 유영선;최은서;김성수;민영돈
    • Journal of Gastric Cancer
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    • 제9권4호
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    • pp.256-261
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    • 2009
  • 목적: 진단 기술의 발전과 함께 위암 환자에서 동시성과 이시성암이 발견되는 빈도가 증가하고 있다. 본 연구에서는 위암에서 발견된 동시성과 이시성암의 임상병리학적 특성과 임상적 의의에 대하여 알아보고자 하였다. 대상 및 방법: 1998년 1월부터 2008년 3월까지 조선대학교병원에서 위암으로 진단된 환자들의 의무기록을 후향적으로 분석하였다. 결과: 1,048명 위암 환자 중 38명(3.6%)에서 동시성과 이시성암이 있었다. 38명 중 16명(42.1%)은 동시성암이었고 22명(57.9%)은 이시성암이었다. 위암과 이차성 원발암 간의 평균 시간간격은 $27.08{\pm}31.25$개월이었다. 가장 흔한 중복암은 폐암(8/38, 21.1%)과 대장암(8/38, 21.1%)이었다. 27명의 환자가 위암에 대하여 수술적 치료를 하였으며 이 중 5명(18.5%)은 동시성암, 22명(81.5%)은 이시성암이었다. 평균 생존 기간은 49.8개월이었으며 동시성암의 경우는 24.6개월 이시성암의 경우는 68.1개월이었고 이들의 3년 생존율은 동시성암, 이시성암 각각 33.3%, 81.1%였다. 결론: 위암에서의 이차성 원발암 진단에 대한 진단에 있어 충분한 수술 전 검사를 통한 동시성암의 발견과 지속적인 추적검사를 통한 이시성암의 발견을 위해 주의를 기울여야 한다.

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Commonest Cancers in Pakistan - Findings and Histopathological Perspective from a Premier Surgical Pathology Center in Pakistan

  • Ahmad, Zubair;Idrees, Romana;Fatima, Saira;Uddin, Nasir;Ahmed, Arsalan;Minhas, Khurram;Memon, Aisha;Fatima, Syeda Samia;Arif, Muhammad;Hasan, Sheema;Ahmed, Rashida;Pervez, Shahid;Kayani, Naila
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권3호
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    • pp.1061-1075
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    • 2016
  • Context: There are no recent authoritative data about incidence and prevalence of various types of cancers in Pakistan. Aim: To determine the frequency of malignant tumors seen in our practice and provide a foundation for building a comprehensive cancer care strategy. Materials and Methods: 10,000 successive cases of solid malignant tumors reported in 2014 were included. All cases had formalin fixed, paraffin embedded specimens available and diagnosis was based on histological examination of H&E stained slides plus ancillary studies at the Section of Histopathology, Department of Pathology and Laboratory Medicine, Aga Khan University Hospital, Karachi. The latest WHO classifications were used along with the latest CAP protocols for reporting and the most updated TNM staging. Results: There were 9,492 (94.9%) primary tumors while 508 (5.1%) were metastatic. Some 5,153 (51.5%) were diagnosed in females and 4,847 (48.5%) in males. The commonest malignant tumors in females were breast (32%), esophagus (7%), lymphomas (6.8%), oral cavity (6.7%) and ovary (4.8%), while in males they were oral cavity (13.9%), lymphomas (12.8%), colorectum (7.9%), stomach (6.9%) and esophagus (6.6%). Malignant tumors were most common in the 5th, 6th and 7th decades. About 8% were seen under 20 years of age. Conclusions: Oral cavity and gastrointestinal cancers continue to be extremely common in both genders. Breast and esophageal cancers are prevalent in females. Lung and prostate cancer are less common than in the west. Ovarian cancer was very common but cervix cancer was less so.

Pin1 Promoter rs2233678 and rs2233679 Polymorphisms in Cancer: A Meta-analysis

  • Zhu, Yan-Mei;Liu, Jing-Wei;Xu, Qian;Yuan, Yuan
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권10호
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    • pp.5965-5972
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    • 2013
  • PIN1 is one member of the parvulin PPIase family. By controlling Pro-directed phosphorylation, PIN1 plays an important role in cell transformation and oncogenesis. There are many polymorphisms in the PIN1 gene, including rs2233678 and rs2233679 affecting the PIN1 promoter. Recently, a number of case-control studies were conducted to investigate the association between PIN1 gene rs2233678 and rs2233679 polymorphism and cancer risk. However, published data are still conflicting. In this paper, we summarized data for 5,427 cancer cases and 5,469 controls from 9 studies and attempted to assess the susceptibility of PIN1 gene polymorphism to cancers by a synthetic meta-analysis. Odds ratios (ORs) with 95% confidence intervals (CIs) were estimated to assess the relationship. All analyses were performed using Stata software. Our results suggested that rs2233678 represented a protective factor in overall analysis (CC vs GG: OR= 0.697, 95%CI: 0.498-0.976; CG vs GG: OR=0.701, 95%CI: 0.572-0.858; Dominant model: OR= 0.707, 95%CI: 0.590-0.847; C allele vs G allele: OR=0.734, 95%CI: 0.623-0.867) and especially for squamous cell carcinoma of the head and neck, lung cancer and breast cancer in Asians and Caucasians. The rs2233679 polymorphism was significantly associated with decreased cancer risk in overall analysis (CT vs CC: OR=0.893, 95%CI=0.812-0.981; Dominant model: OR=0.893, 95%CI=0.816-0.976; T allele vs C allele; OR=0.947, 95%CI=0.896-1.000) and especially in Asians. In conclusion, our meta-analysis suggested that -842G>C (rs2233678) and -667C>T (rs2233679) may contribute to genetic susceptibility for cancer risks. Further prospective research with larger numbers of worldwide participants is warranted to draw comprehensive and firm conclusions.