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Journal of Cancer Prevention

Mi-Young Park, Min Young Kim, Young Rok Seo, Jong-Sang Kim, Mi-Kyung Sung
[This corrects the article on p. 95 in vol. 21, PMID: 27390738.].
September 2016: Journal of Cancer Prevention
Audie A Atienza, Katrina J Serrano, William T Riley, Richard P Moser, William M Klein
The era of "Big Data" presents opportunities to substantively address cancer prevention and control issues by improving health behaviors and refining theoretical models designed to understand and intervene in those behaviors. Yet, the terms "model" and "Big Data" have been used rather loosely, and clarification of these terms is required to advance the science in this area. The objectives of this paper are to discuss conceptual definitions of the terms "model" and "Big Data", as well as examine the promises and challenges of Big Data to advance cancer prevention and control research using behavioral theories...
September 2016: Journal of Cancer Prevention
Kyung-Taek Rim, Soo-Jin Kim
In vivo studies regarding biochemical, molecular biological, and histopathological changes in cancer tissues have been widely performed by the administration of carcinogens in rodents. In these established methods, dissection of the animal following sacrifice must be carried out. Exosomes are cell-derived vesicles that are present in all body fluids and these vesicles have specific roles within cells. Thus, much attention is given to the clinical application of exosomes that can possibly be used for prediction and therapy and as biomarkers related to cancer...
September 2016: Journal of Cancer Prevention
Ho Il Yoon, Oh-Ran Kwon, Kyung Nam Kang, Yong Sung Shin, Ho Sang Shin, Eun Hee Yeon, Keon Young Kwon, Ilseon Hwang, Yoon Kyung Jeon, Yongdai Kim, Chul Woo Kim
BACKGROUND: Despite major advances in lung cancer treatment, early detection remains the most promising way of improving outcomes. To detect lung cancer in earlier stages, many serum biomarkers have been tested. Unfortunately, no single biomarker can reliably detect lung cancer. We combined a set of 2 tumor markers and 4 inflammatory or metabolic markers and tried to validate the diagnostic performance in lung cancer. METHODS: We collected serum samples from 355 lung cancer patients and 590 control subjects and divided them into training and validation datasets...
September 2016: Journal of Cancer Prevention
Ju Yup Lee, Nayoung Kim, Yoon Jeong Choi, Ryoung Hee Nam, Yoon Jin Choi, Seonmin Lee, Daeun Choi, Hye Seung Lee, Jin-Wook Kim, Dong Ho Lee
BACKGROUND: The aim of this study was to investigate the effect of N-methyl-N-nitrosourea (MNU) treatment followed by chronic Helicobacter pylori SS1 and H. felis colonization on the stomachs of C57BL/6 mice. The role of MNU and Helicobacter species in gastric carcinogenesis was also elucidated. METHODS: A total of 69 C57BL/6 mice at 4 weeks of age were divided into 6 groups according to MNU treatment and H. pylori SS1 or H. felis infection. The mice were sacrificed at 21 and 50 weeks...
September 2016: Journal of Cancer Prevention
Jae-Min Cho, Kee-Young Kim, Sang-Deok Ji, Eun-Hee Kim
BACKGROUND: Hepatocellular carcinoma (HCC) is a representative inflammation-associated cancer and known to be the most frequent tumors. HCC may also induce important pro- and anti-tumor immune reactions. However, the underlying mechanisms are unsatisfactorily identified. We investigated the protective effect of boiled and freeze-dried mature silkworm larval powder (BMSP) on diethylnitrosamine (DEN)-induced hepatotoxicity in mice. METHODS: Mice were fed with diet containing BMSP (0...
September 2016: Journal of Cancer Prevention
Seo Yeon Lee, Kwang Suk Ko
BACKGROUND: Exposure to ethanol abuse and severe oxidative stress are risk factors for hepatocarcinoma. The aim of this study was to evaluate the effects of S-adenosylmethionine (SAMe) and its combinations with taurine and/or betaine on the level of glutathione (GSH), a powerful antioxidant in the liver, in acute hepatotoxicity induced by ethanol. METHODS: To examine the effects of SAMe and its combinations with taurine and/or betaine on ethanol-induced hepatotoxicity, AML12 cells and C57BL/6 mice were pretreated with SAMe, taurine, and/or betaine, followed by ethanol challenge...
September 2016: Journal of Cancer Prevention
Seo Yeon Lee, Kwang Suk Ko
BACKGROUND: Several mechanisms for the pathogenesis of many liver diseases are related with oxidative stress, endotoxins, and infections by many microorganisms. These can lead to chronic hepatitis, cirrhosis, and even liver cancer. The aim of this study was to evaluate the effects of S-adenosylmethionine (SAMe) and its combinations with taurine and/or betaine against hepatotoxicites induced by lipopolysaccharide (LPS) or polyinosinic-polycytidylic acid (polyI:C). METHODS: RAW 264...
September 2016: Journal of Cancer Prevention
Da Hye Kwon, Ji Min Cheon, Eun-Ok Choi, Jin Woo Jeong, Ki Won Lee, Ki Young Kim, Sung Goo Kim, Suhkmann Kim, Su Hyun Hong, Cheol Park, Hye-Jin Hwang, Yung Hyun Choi
BACKGROUND: Immunoregulatory elements have emerged as useful immunotherapeutic agents against cancer. In traditional medicine, Mori folium, the leaf of Morus alba L. (Moraceae), has been used for various medicinal purposes; however, the immunomodulatory effects have not been fully identified. We evaluated the immunoenhancing potential of water extract of Mori folium (WEMF) in murine RAW264.7 macrophages. METHODS: RAW264.7 cells were treated with WEMF for 24 hours and cell viability was detected by an MTT method...
September 2016: Journal of Cancer Prevention
Juthika Kundu, In Gyeong Chae, Kyung-Soo Chun
BACKGROUND: Fraxetin (7,8-dihydroxy-6-methoxy coumarin), a coumarin derivative, has been reported to possess antioxidative, anti-inflammatory and neuroprotective effects. A number of recent observations suggest that the induction of heme oxygenase-1 (HO-1) inhibits inflammation and tumorigenesis. In the present study, we determined the effect of fraxetin on HO-1 expression in HaCaT human keratinocytes and investigated its underlying molecular mechanisms. METHODS: Reverse transcriptase-PCR and Western blot analysis were performed to detect HO-1 mRNA and protein expression, respectively...
September 2016: Journal of Cancer Prevention
Heesoo Yoon, Minsung Sohn, Minsoo Jung
Communication related to health not only substantially affects perceptions and behaviors related to health but is also positively associated with the extent of health-information seeking and the practice of preventive behavior. Despite the fact that the number of cancer survivors has increased dramatically, there are few studies of the lack of health information, factors which act as barriers, and the difficulties in follow-up care experienced by cancer survivors. Therefore, we reviewed media utilization and the types of media used by cancer survivors with regard to risk communication and suggested appropriate strategies for cancer communication...
September 2016: Journal of Cancer Prevention
Yassine Zouheir, Taoufiq Fechtali, Nadia Elgnaoui
Cervical cancer is a major public health problem in Morocco. The cervical cancer has a long precancerous period that provides an opportunity for the screening and treatment. Improving screening tests is a priority goal for the early diagnosis of cervical cancer. This study was conducted to evaluate the combination of p16(INK4a) protein expression, human papillomavirus (HPV) typing, and histopathology for the identification of cervical lesions with high risk to progress to cervical cancer among Moroccan women...
June 2016: Journal of Cancer Prevention
Shusuke Tani, Benjamin John Blyth, Yi Shang, Takamitsu Morioka, Shizuko Kakinuma, Yoshiya Shimada
The risk of radiation-induced cancer adds to anxiety in low-dose exposed populations. Safe and effective lifestyle changes which can help mitigate excess cancer risk might provide exposed individuals the opportunity to pro-actively reduce their cancer risk, and improve mental health and well-being. Here, we applied a mathematical multi-stage carcinogenesis model to the mouse lifespan data using adult-onset caloric restriction following irradiation in early life. We re-evaluated autopsy records with a veterinary pathologist to determine which tumors were the probable causes of death in order to calculate age-specific mortality...
June 2016: Journal of Cancer Prevention
Wooje Lee, Jung-Mi Yun
Delphinidin possesses strong anti-oxidant, anti-inflammatory, and anti-cancer properties. Suppression of the Wnt/β-catenin signaling pathway is a potential strategy for chemoprevention and therapy. As aberrant activation of the β-catenin signaling pathway contributes to prostate cancer progression, we evaluated the effect of delphinidin on this pathway in human PC3 prostate cancer cells. An MTT assay showed that treatment with delphinidin (15-180 μM, 72 hours) resulted in a dose-dependent growth inhibition of cells...
June 2016: Journal of Cancer Prevention
Kyeong A So, Jin Hwa Hong, Jae Kwan Lee
BACKGROUND: Geographic variation in the prevalence of carcinogenic types and human papillomavirus (HPV) genotype distribution is closely associated with the impact of HPV prophylactic vaccines. We determined the prevalence and distribution of HPV genotypes among healthy women in Korea. METHODS: This study included 968 healthy women who were examined at a health promotion center of the Korea University Guro Hospital between January and June 2013. Each participant had a Pap test and a HPV DNA test using the Anyplex™ II HPV 28 Detection system, which detects 19 high-risk HPVs (HR HPVs) and 9 low-risk HPVs (LR HPVs)...
June 2016: Journal of Cancer Prevention
Mi-Young Park, Min Young Kim, Young Rok Seo, Jong-Sang Kim, Mi-Kyung Sung
BACKGROUND: Excess energy supply induces chronic low-grade inflammation in association with oxidative stress in various tissues including intestinal epithelium. The objective of this study was to investigate the effect of high-fat diet (HFD) on intestinal cell membrane integrity and intestinal tumorigenesis in Apc(Min/+) mice. METHODS: Mice were fed with either normal diet (ND) or HFD for 12 weeks. The number of intestinal tumors were counted and biomarkers of endotoxemia, oxidative stress, and inflammation were determined...
June 2016: Journal of Cancer Prevention
Yu Li Kim, Sun Kyoung Lee, Kwang-Kyun Park, Won-Yoon Chung
BACKGROUND: Breast cancer is the most common malignant disease in women. The patients with advanced breast cancer develop metastasis to bone. Bone metastasis and skeletal-related events by breast cancer are frequently associated with the invasiveness of breast cancer cells and osteoclasts-mediated bone resorption. Forsythia koreana is used in oriental traditional medicine to treat asthma, atopy, and allergic diseases. The aim of this study was to evaluate the inhibitory effects of F. koreana extracts on the invasion of breast cancer cells and bone resorption by osteoclasts...
June 2016: Journal of Cancer Prevention
Joon-Seok Choi
BACKGROUND: Chrysophanic acid, also known as chrysophanol, has a number of biological activities. It enhances memory and learning abilities, raises superoxide dismutase activity, and has anti-cancer effects in several model systems. According to previous reports, chrysophanic acid-induced cell death shares features of necrotic cell death. However, the molecular and cellular processes underlying chrysophanic acid-induced cell death remain poorly understood. METHODS: Chrysophanic acid-induced cell death was monitored by cell viability assay and Annexin V-propidium iodide (PI) staining of renal cell carcinoma Caki-2 cells...
June 2016: Journal of Cancer Prevention
Soyeun Park
Since various bio-mechanical assays have been introduced for studying mechanical properties of biological samples, much progress has been made in cancer biology. It has been noted that enhanced mechanical deformability can be used as a marker for cancer diagnosis. The relation between mechanical compliances and the metastatic potential of cancer cells has been suggested to be a promising prognostic marker. Although it is yet to be conclusive about its clinical application due to the complexity in the tissue integrity, the nano-mechanical compliance of human cell samples has been evaluated by several groups as a promising marker in diagnosing cancer development and anticipating its progression...
June 2016: Journal of Cancer Prevention
Ok-Kyung Yoo, Bu Young Choi, Jin-Oh Park, Ji-Won Lee, Byoung-Kwon Park, Chul Gue Joo, Hyo-Jung Heo, Young-Sam Keum
UNLABELLED: Keratinocytes are constantly exposed to extracellular insults, such as ultraviolet B, toxic chemicals and mechanical stress, all of which can facilitate the aging of keratinocytes via the generation of intracellular reactive oxygen species (ROS). Nuclear factor erythroid 2-related factor 2 (Nrf2) is a transcription factor that plays a critical role in protecting keratinocytes against oxidants and xenobiotics by binding to the antioxidant response element (ARE), a cis-acting element existing in the promoter of most phase II cytoprotective genes...
March 2016: Journal of Cancer Prevention
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