• Asian Pacific Journal of Cancer Prevention
• /
• 제15권12호
• /
• pp.4925-4928
• /
• 2014

Background: This study aimed to evaluate the methylation of RASSF1A and CDH13 gene promoter regions as a marker for monitoring chemotherapeutic efficacy with personalized medicine for patients with NSCLC, in the hope of providing a new direction for NSCLC individualized chemotherapy. Materials and Methods: 42 NSCLC patients and 40 healthy controls were included. Patient blood samples were collected in the whole process of chemotherapy. Methylation of RASSF1A and CDH13 gene promoter regions was detected by the methylation specific polymerase chain reaction (MSP). Results: The rate of RASSF1A and CDH13 gene methylation in 42 cases of NSCLC patients was significantly higher than in 40 healthy controls (52.4% to 0.0%, 54.8% to 0.0%, p<0.05). After the chemotherapy, the hyper-methylation of RASSF1A and CDH13 genes in PR group and SD group decreased significantly (p<0.05), and was significantly different from that in PD group (p<0.05), but not as compared with healthy controls (P>0.05). With chemotherapy, RASSF1A and CDH13 promoter region methylation rate in 42 cases of patients showed a declining trend. Conclusions: The methylation level of RASSF1A and CDH13 gene promoter region can reflect drug sensitivity of tumors to individualized treatment.

• Journal of Gynecologic Oncology
• /
• 제29권6호
• /
• pp.83.1-83.10
• /
• 2018

Objective: We aimed to propose a set of quality indicators (QIs) based on the clinical guidelines for cervical cancer treatment published by The Japan Society of Gynecologic Oncology, and to assess adherence to standard-of-care as an index of the quality of care for cervical cancer in Japan. Methods: A panel of clinical experts devised the QIs using a modified Delphi method. Adherence to each QI was evaluated using data from a hospital-based cancer registry of patients diagnosed in 2013, and linked with insurance claims data, between October 1, 2012, and December 31, 2014. All patients who received first-line treatment at the participating facility were included. The QI scores were communicated to participating hospitals, and additional data about the reasons for non-adherence were collected. Results: In total, 297 hospitals participated, and the care provided to 15,163 cervical cancer patients was examined using 10 measurable QIs. The adherence rate ranged from 50.0% for 'cystoscope or proctoscope for stage IVA' to 98.8% for 'chemotherapy using platinum for stage IVB'. Despite the variation in care, hospitals reported clinically valid reasons for more than half of the non-adherent cases. Clinically valid reasons accounted for 75%, 90.9%, 73.4%, 44.5%, and 88.1% of presented non-adherent cases respectively. Conclusion: Our study revealed variations in pattern of care as well as an adherence to standards-of-care across Japan. Further assessment of the causes of variation and non-adherence can help identify areas where improvements are needed in patient care.

• Asian Pacific Journal of Cancer Prevention
• /
• 제15권15호
• /
• pp.6333-6337
• /
• 2014

Background: In this case-control study, we aimed to investigate the relationship between the methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism and lung cancer. Materials and Methods: Total 200 individuals including 100 patients with lung cancer and 100 controls were analyzed. Genotyping of MTHFR C677T was performed using PCR and RFLP methods. Results: The majority of the patients were men and 90% were smokers. We found that the risk ratio for development of LC was 13-times higher in smokers compared with non-smokers between patient and control groups in our study (OR:13.5, 95%CI:6.27-29.04, p:0.0001). Besides, the risk ratio for development of LC was nine times higher in individuals with cancer history in their family than those without cancer history (OR:9.65, 95%CI: 2.79-33.36; p:0.0001). When genotype distributions and allele frequencies were analyzed in the study groups, no significant difference was apparent (${\chi}^2$:0.53, p=0.76). In addition, no correlation between genotypes of MTHFRC677T polymorphism and histological type of LC was found (${\chi}^2$:0.99, p=0.60). Conclusions: These results suggest that there was no association between the MTHFR C677T polymorphism and lung cancer in the Turkish population.

• Asian Pacific Journal of Cancer Prevention
• /
• 제14권9호
• /
• pp.5461-5465
• /
• 2013

Oral cancer is one of the most commonly occurring cancers worldwide, decreasing the patient's survival rate due to tumor recurrence and metastasis. Menadione (Vitamin K3) is known to exhibit cytotoxicity in various cancer cells but the present study focused on its effects on viability, apoptosis, epithelial to mesenchymal transition (EMT), anchorage independent growth and migration of oral cancer cells. The results show that menadione is more cytotoxic to SAS (oral squamous carcinoma) cells but not to non-tumorigenic HEK293 and HaCaT cells. Menadione treatment increased the expression of pro-apoptotic proteins, Bax and p53, with a concurrent decrease in anti-apoptotic proteins, Bcl-2 and p65. Menadione induced the expression of E-cadherin but reduced the expression of EMT markers, vimentin and fibronectin. Menadione also inhibited anchorage independent growth and migration in SAS cells. These findings reveal and confirm that menadione is a potential candidate in oral cancer therapy as it exhibits cytotoxic, antineoplastic and antimigratory effects besides effectively blocking EMT in oral cancer cells.

• 대한두경부종양학회지
• /
• 제32권2호
• /
• pp.69-72
• /
• 2016

Lung cancer is one of high mortality malignancy. It is known that skin metastasis from lung cancer is uncommon. We report a very rare case of finger tip metastasis from double primary cancer of the lung and lower lip. A 79 year-old man diagnosed with non small cell lung cancer presented with protruding solid mass in his lower lip. It showed central necrosis with purulent discharge. It had appeared rapidly growing features. Simultaneously, another solid mass accompanying painful swelling without skin lesion was found in his left middle finger tip. Both two solid masses were moderately differentiated squamous cell carcinomas. Lower lip mass was a primary cancer, while middle finger tip mass was diagnosed with clinically metastatic cancer from lung or lower lip, which means that it had double primary cancer origin.

• 대한치과의사협회지
• /
• 제54권2호
• /
• pp.155-162
• /
• 2016

Radiographs can help in the diagnosis and treatment planning, but the exposure to ionizing radiation may elevate the risk of developing cancer in a person's lifetime. The objective of this review is to briefly summarize 1) radiation risk, especially cancer risks associated with diagnostic imaging, 2) linear, non-threshold (LNT) hypothesis, 3) the risks of radiation exposure to a fetus, and 4) the campaign of Image Gently. The individual risk of radiation-related cancer from any single medical imaging procedure is extremely small and it is not likely to be cancer risk at doses lower than 100 mGy, but patients may be harmed by avoiding diagnostic imaging due to fear of radiation hazard. Dentists need to understand the radiation doses delivered by various radiographic techniques and the acceptable exposure thresholds to effectively advise the patient and to reduce the unnecessary radiation

• 대한기관식도과학회지
• /
• 제6권2호
• /
• pp.204-208
• /
• 2000

Endobronchial metastases from extrathoracic primary malignancies are uncommon. Breast, renal, and colonic carcinomas are primary sites most likely to give rise to endobronchial metastases. A number of other tumours have been reported as being complicated by endobronchial metastasis, including ovarian, thyroid, uterine, adrenal, testicular and prostatic carcinomas. The incidence of endobronchial metastasis has been estimated at 2% in patients who died of metastatic disease. Lung parenchymal metastases are common manifestations in patients with rectal cancer, however spread to the major airway is extremely rare. We herein report a case of endobronchial metastasis from rectal adenocarcinoma. A 69-year-old male patient who had been previously treated with surgical resection with rectal cancer presented with a 8-month history of gradually increasing dyspnea and non-productive cough. Clinical and radiological investigations revealed endobronchial metastasis involving, and penetrating, the lower carina and the left main bronchus. We confirmed endobronchial metastasis from the rectal carcinoma by bronchoscopic biopsy.

• Asian Pacific Journal of Cancer Prevention
• /
• 제14권5호
• /
• pp.2949-2954
• /
• 2013

Background: This study was conducted to determine the relationship between lifestyle behavior and quality of life (QoL) among cancer survivors in Korea. Materials and Methods: Data for a total of 471 (173 men, 298 women) cancer survivors (CS) over 40 years old were obtained from the database of the $4^{th}$ Korean National Health and Nutrition Examination Survey (KNHANES IV). An identical number of subjects of the same age, sex, and education who had no restrictions in physical activity were randomly selected from the database and represented the control group (CG). Drinking, smoking, and exercise behavior were assessed. Results: The number of heavy drinkers was lower in CS (9.4%) than in CG (15.8%) (p<0.01); similarly, there were fewer smokers in CS (9.1%) than in CG (14.0%) (p<0.05). The percentage of individuals engaging in vigorous, moderate, and low-intensity exercise did not differ between CS (13.6%, 14.7%, and 50.0%) and CG (14.3%, 13.4%, and 49.7%, respectively). No differences in Euro QoL Questionnaire 5-Dimensional Classification (EQ-5D) scores on both drinking and smoking behaviors were noted. Compared to the non-exercisers, the low-intensity exercisers in CG ($0.91{\pm}0.10$ vs. $0.94{\pm}0.09$), vigorous-intensity exercisers in CS ($0.84{\pm}0.62$ vs. $0.91{\pm}0.11$), and low-intensity exercisers in CS ($0.82{\pm}0.22$ vs. $0.88{\pm}0.13$) scored higher on the EQ-5D. Conclusions: Although cancer survivors practiced more conscious health behavior in drinking and smoking, their engagement in exercise did not differ from that of non-cancer survivors. Since exercise engagement increases QoL in general, implementation of an educational program that promotes exercise engagement in cancer survivors may be required.

• Korean Journal of Radiology
• /
• 제24권7호
• /
• pp.606-625
• /
• 2023

Transarterial chemoembolization (TACE) was introduced in 1977 with the administration of chemotherapeutic agent to gelatin sponge particles through the hepatic artery in patients with hepatocellular carcinoma (HCC) and was established as conventional TACE using Lipiodol in the 1980s. In the 2000s, drug-eluting beads were developed and applied clinically. Currently, TACE is a commonly used non-surgical treatment modality for patients with HCC who are unsuitable for curative treatment. Considering the vital role of TACE in the management of HCC, it is crucial to organize current knowledge and expert opinions regarding patient preparation, procedural techniques, and post-treatment care in TACE, which can enhance therapeutic efficacy and safety. A group of 12 experts in the fields of interventional radiology and hepatology, convened by the Research Committee of the Korean Liver Cancer Association (KLCA), has developed expert consensus-based practical recommendations in TACE. These recommendations have been endorsed by the Korean Society of Interventional Radiology and provide useful information and direction in performing TACE procedure as well as pre- and post- procedural patient care.

• BMB Reports
• /
• 제44권5호
• /
• pp.317-322
• /
• 2011

Hereditary non-polyposis Colorectal Cancer (HNPCC) is an autosomal dominant inheritance syndrome. HNPCC is the most common hereditary variant of colorectal cancer (CRC), which accounts for 2-5% CRCs, mainly due to hMLH1 and hMSH2 mutations that impair DNA repair functions. Our study aimed to identify the patterns of hMSH2 and hMLH1 mutations in Chinese HNPCC patients. Ninety-eight unrelated families from China meeting Amsterdam or Bethesda criteria were included in our study. Germline mutations in MLH1 and MSH2 genes, located in the exons and the splice-site junctions, were screened in the 98 probands by direct sequencing. Eleven mutations were found in ten patients (11%), with six in MLH1 (54.5%) and five in MSH2 (45.5%) genes. One patient had mutations in both MLH1 and MSH2 genes. Three novel mutations in MLH1 gene (c.157_160delGAGG, c.2157dupT and c.-64G>T) were found for the first time, and one suspected hotspot in MSH2 (c.1168C>T) was revealed.