• Journal of Applied Biological Chemistry
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• 제66권
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• pp.53-59
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• 2023

Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has no effect on normal cells, but selectively can induce apoptosis in tumor cells. Gartanin, a xanthone compound in mangosteen, has been shown to inhibit cancer cell growth by arresting the cell cycle and inducing autophage. In this study, we revealed that gartanin can sensitize TRAIL-induced human liver cancer cell death. We also found that gartanin enhances DR5 expression, a death receptor for TRAIL. This effect appears to be related to CHOP activation associated with the response of endoplasmic reticulum stress. Gartanin treatment also inhibited p62 protein expression and cleaved LC3 to activate autophagy flux, which is related with TRAIL-induced cell death. Pretreatment with autophagy flux inhibitor, LY294002, inhibited gartanin-induced DR5 expression. In summary, our results reveal that the combined treatment of gartanin and TRAIL can be a valuable tool for cancer treatment.

• 한국인구학
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• 제15권2호
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• pp.15-59
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• 1992

After world war II Japanese life expectancy has been improved remarkably, and reached the highest level in the world around late 1970's. The life expectancy of Korean has also shown tremendous improvement in recent years with about 20 year's gap from the Japanese. The reason of rapid improvement of life expectancy can be explained by changes in the structure of cause of death due to health system, living standard, social welfare, health behavior of individuals and so on. Korean in Japan is placed under different situations from both Korean in Korea and Japanese in these regards, and expected to show different picture of cause of death pattern. The objective of this study is the comparision of changing patterns of cause of death of three population groups, Korean in Japan, Korean in Korea and Japanese, and to investigate the reasons which effect to the structural difference of mortality cause with special emphasis on health ecological aspects. One of the major limitations of the Korean causes of death statistics is the under-registration which ranges about 10% of the total events, and inaccuracy of the exact cause of death. Some 20% of registered deaths were unable to classify by ICD. However, it is concluded that the Korean data are evaluated as sufficient to stand for over-viewing of trends of cause of death pattern. The evaluation is done by comparing data from registration and field survey over the same population sample. Population data of Korean in Japan differ between two sources of data; census and foreigner's registration. Correction is done by life table method under the assumption that age-specific mortality pattern would accord with that of the Japanese. The crude death rate was lowest among Korean in Japan, 5.7 deaths per 1,000 population in 1965. The crude death rates of Korean in Japan and Japanese are increasing recently influenced by age structure while Korean in Korea still shows decreasing tendency. The adjusted death rate is lowest among Japanese, followed by Korean in Japan, and Korean in Korea. The leading causes of death of Korean in Korea until 1960's was infectious diseases including pneumonia and tuberculosis. The causes of death structure changed gradually to accidents, neoplasm, hypertensive disease, cerebro-vascular disease in order. The main difference in cause of death between Korean and Japanese if high rate of liver diseases and diabetes for both Korean in Japan and Korea. A special feature of cause of death among Korean in Korea is remakably high rate of hypertensive disease, which is assumed to be caused by physicians tendency in choosing diagnostic categories. The low ischemic heart disease and high vasculo-cerebral disease are the distinctive characteristic of the three population groups compared to western countries. Specific causes of death were selected for detailed sex, age and ethnic group comparisons based on their high death rates. Cancer is the cause of death which showed most dramatical increase in all three population groups. In Korea 20.1% of all death were caused by cancer in 1990 compared with 10.5% in 1981. Cancer of the liver is the leading cause of cancer death among Korean in Japan for both sexes, followed by cancer of the lung and cancer of the stomach, while that of Korean in Korea is cancer of the stomach, followed by cancer of the liver and cancer of the lung for male. Causes of infant mortality were examined among the three population groups since 1980 on yearly bases. For both Japanese and Korean in Japan, leading cause of death ranks as conditions originating in the perinatal period, congenital anomalies, accidents and other violent causes. Trends since 1980 for these two population groups in the leading cause of infant mortality showed no changes. On the contrary, significant changes in leading cause of death structure in Korea were observed : the ranking of leading cause of death in 1981 were congenital asnomalies, pneumonia bronchitis, infectious disease, heart disease, conditions originating in the perinatal period, accident and other violent causes ; in 1990 the ranking shifted to congenital anomalies, accident, pneumonia bronchities, conditions originating in the perinatal period, infectious disease. The mortality rate by congenital anomalies in Korea continuously grew than any other causes. Larger increase ocurred during the 1990's

• BMB Reports
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• 제42권4호
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• pp.217-222
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• 2009

Controlled gene expression in specific cells is a valuable tool for gene therapy. We attempted to determine whether the lentivirus-mediated Tet-On inducible system could be applied to cancer gene therapy. In order to select the genes that induce cancer cell death, we compared the ability of the known pro-apoptotreic genes, Bax and tBid, and a cell cycle inhibitor, p21cip1/waf1, and determined that Bax was the most effective. For the cancer cell-specific expression of $rtTA2^S$-M2, we tested the matrix metalloproteinase-2 (MMP-2) promoter and determined that it is highly expressed in cancer cell lines, including SNU475 cells. The co-transduction of two lentiviruses that contain sequences for TRE-Bax and $rtTA2^S$-M2, the expression of which is controlled by the MMP-2 promoter, resulted in the specific cell death of SNU475, whereas other cells with low MMP-2 expression did not evidence significant cell death. Our data indicate that the lentivirus-mediated Tet-On system using the cancer-specific promoter is applicable for cancer gene therapy.

• Journal of Preventive Medicine and Public Health
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• 제20권1호
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• pp.84-96
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• 1987

For the purpose of preparing the basic data for further cancer epidemiologic study and cancer patients control, we conducted the analysis on the degree and structure of deaths from cancer in metropolitan areas of Korea with 7,934 certified cancer deaths records of Seoul, Pusan, Taegu and Incheon in 1982. The analyzed results were as follows: 1) The total number of cancer deaths in metropolitan areas were 7,934 (male: 4,749, female: 3,185) as 14.1% of deaths from all causes in the same area. 2) The rate of physician's certification on cancer deaths was 77.4% and most of cancer deaths (84.4%) occured at their home. 3) Cancer specific death rate was 51.7 per 100.000 population (male: 62.9, female: 41.9) and age-adjusted cancer death rate was 82.4 in male and 51.6 in female per 100,000 population. And the difference was statistically significant (p< 0.01). 4) Age-specific cancer death rate was generally increased with age and most of cancer deaths (male: 75% , female: 65%) occurred from 45 to 74 years old. 5) The first three orders of cancer site were stomach (32.7%), liver (28.8%), lung (11.7%) in male and stomach (30.6%), uterus (18.4%), liver (13.8%) in female. And the relative frequency of these three cancer sites among total cancer deaths was corresponded to 73.2% in male and 62.8% in female. 6) The ratio of male to female cancer death rate was 1.5:1. And the ratio was aboye 3.0 in esophagus, liver, larynx, bladder cancer and the ratio was similar to 1.0 in stomach, pancreas, leukemia, brain, colon cancer, but the ratio was reversed in gall bladder and bile duct, and thyroid cancer.

• 기본간호학회지
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• 제3권2호
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• pp.153-169
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• 1996

This study was designed to identify, describe and classify orientations of cancer patient's family members to death and to identify factors related to their attitudes on death. Death to the male is understood as a comprehensive system and believed to be highly subjective experience. Therefore attitude on death is affected by personalities. As an attempt to measure the subjective meaning toward death, the unstructured Q-methodology was used. Korean Death Orientation Questonaire prepared by Kim was used. Item-reliability and Sorting-reliability were tested. Forty five cancer patients' family members hospitalized in one university medical center in Seoul were sampled. Sorting the 65 Q-itmes according to the level of personal agreement ; A forced normal distribution into the 11 levels, were carried out by the 45 P-samples. The demographic data and information related to death orientation of the P-sample was collected through face to face in depth interviews. Data was gathered from August 30 till September 22, 1995. The Z-scores of the Q-items were computed and principal component factor analysis was carried out by PC-QUANL Program. Three unique types of the death orientation were identified and labeled. Type I consists of twenty P-samples. Life and death was accepted as people's destiny, They firmly believed the existence of life after life. They kept aloof from death and their concern was facing the and of the life with dignity, They were in favor of organ donation. Type II consists of Nine P-Samples. They considered that death was the end of everything and did not believed the life after life. They were very concerned about the present life. Type III consists of Sixteen P-samples. They regarded the death as a natural phenomena. And they considered that the man is just a traveller and is bound to head for the next life which is believed to be free of agony, pain or darkness. They neither feared death nor its process. Their conserns were on the activities to prepare themselves for the eternal-life after death. Thus, it was concluded that there were three distinctiven type of attitudes on death among cancer patient family members, and their death attitudes were affected by demographic and socio-cultural factors such as sex, education, and religion.

• Asian Pacific Journal of Cancer Prevention
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• 제15권1호
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• pp.349-353
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• 2014

Background: Although previously studies have reported that most patients with malignancy prefer to die at home, this is not the real situation in clinical practice. Aim: In this study, we aimed to determine the characteristics of Turkish cancer patients admitted to the emergency department (ED) within one month before death. Materials and Method: This descriptive retrospective study focused on questions about how often and why patients with cancer visited the ED before death. A total of 107 individuals with cancer were divided into 2 groups: Group 1, patients with at least one visit in the final 4 weeks; and Group 2, patients with no visit to ED. Demographic and clinical features were compared between the two groups. Statistical analyses: Descriptive statistical methods, statistical analysis for correlation, Student's t-test, chi-square tests and logistic regression were used. Results: At least one visit to ED within one month before death was reported for 64 (60%) of the 107 cases. Of these 64 (Group 1), 38% (n=24) were discharged and 9% (n=6) died in the ED. The most common site of the primary tumor was the lung (n=24, 38%) and the most common symptom was dyspnea (92%). With the other 43 (40%) cancer patients not presenting to the ED within one month before death, they were more likely to be female with another type of cancer. Conclusions: Guidelines are needed for better management of cancer patients benefiting from visits to ED within the last month of life.

• 농촌의학ㆍ지역보건
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• 제26권2호
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• pp.59-78
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• 2001

경상북도 지역의 암사망 신고자료의 정확성을 제고하고, 질 높은 지역보건사업계획의 수립을 위한 자료수집을 위해 기존의 사망신고체계에 보건소망을 추가로 이용하여 1991년부터 1998년까지 의 암사망 신고자료를 수집 분석하였다. 경상북도의 전체 사망자중에서 암사망자가 차지하는 비율은 1991년에는 16.7%에서 1998년에는 19.3%로 증가되었는데, 남자는 1991년 19.4%에서 1998년에는 22.3%로 증가하였고, 여자는 1991년 12.4%에서 1998년에는 15.5%로 여자에서의 비율의 증가가 컸다. 암 종류별 사망자는 전체적으로는 1991년에는 위암(41.5%), 간암(28.8%), 폐와 기관지암(8.7%)순이었고, 1998년에는 위암(24.7%), 간암(22.7%), 폐와 기관지암(19.3%)순으로 순위는 같았으나 사망비율의 차이는 있었다. 남자는 1991년에는 위암(40.2%), 간암(33.7%), 폐와 기관지암(10.2%) 순이었으나, 1998년에는 간암이 25.0%, 위암과 폐 기관지암이 공히 22.8%를 차지하여 순위의 변동이 있었다. 여자는 1991년에는 위암(44.7%), 간암(16.7%), 폐와 기관지암(5.0%)순이었고, 1998년에는 위암(27.8%), 간암(18.5%), 폐 기관지암(12.7%)순이었으며, 위암이 가장 많이 감소하였고, 폐 기관지암이 가장 많이 증가하였다. 암 종류별로 보면 위암, 간암, 후두암에 의한 사망은 감소하였고, 폐 기관지암, 식도암, 췌장암, 직장암에 의한 사망은 증가하였다. 여자의 경우는 유방암에 의한 사망은 증가하였고, 자궁암은 감소하는 추세였다. 1995년도 인구를 기준으로 연도별 연령보정 표준화 사망률을 산출하였는데, 전체적으로는 1991년에는 84.25명이었으며, 1998년에는 77.67으로 감소하였다. 남자는 1991년에 119.81명에서 101.82명으로 크게 감소하였고, 여자는 1991년 48.64명에서 1998년 53.80명으로 증가하였다. 연령대별로는 40대 미만에서는 위암, 간암, 폐 기관지암, 자궁암, 식도암은 감소하고, 췌장암, 직장암과 유방암은 증가하였다. 40대 이상에서는 위암, 간암, 자궁암, 후두암은 감소하였고, 폐 기관지암, 식도암, 백혈병, 췌장암, 직장암, 유방암은 증가하는 추세였다. 이상의 결과 경북지역에서는 전반적으로 폐 기관지암, 직장암, 식도암, 췌장암, 유방암 등에 의한 사망이 증가하는 추세이므로 이를 고려한 지역암보건사업이 이루어져야 하겠으며, 전국적으로도 국가암등록사업과 사망자료의 연계를 통한 정확한 사망통계를 근거로한 국가암보건계획의 수립과 평가가 필요하며, 이를 위하여 공공보건기관에서 정확한 암 사망통계의 산출을 위한 추진방안이 개발되어야 할 것으로 생각된다.

• Journal of Hospice and Palliative Care
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• 제25권1호
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• pp.42-49
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• 2022

As population aging increases the burden of cancer, the quality of death of patients with cancer is emerging as an important issue alongside their quality of life. To improve the quality of death, it is necessary to prepare for death, allowing patients to die comfortably and with dignity at the end. Considering these issues, I aim to discuss the practical aspects of notifying the patient of the terminal phase of cancer and planning for end-of-life care (i.e., advance care planning). When cancer treatment that can extend the patent's lifespan becomes difficult, the patient enters a treatment transition period. Treatment is shifted from life-prolonging care to life-enhancing care, and end-of-life care must be well planned. Medical providers often worry too much about whether the patient will be disappointed or psychologically traumatized when notified of the terminal phase of their cancer, thus delaying plans for end-of-life care. In fact, patients can accept their condition and prepare for end-of-life care better than we expect. During the treatment transition period, notification of terminal status should be given, and a well-prepared advance care plan should be established early when the patient has decision-making ability. In addition to conveying information, it is always necessary to be sensitive to whether the patient and caregiver understand the information and respond to their emotions.

• Journal of Gastric Cancer
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• 제3권2호
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• pp.80-83
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• 2003

Purpose: Evidence exists that dysregulation of apoptosis is involved in the pathogenesis of cancer development. Fasassociated death domain (FADD) protein, an adaptor protein of death receptors, is a critical regulatory component of the extrinsic cell- death pathway that exerts its pro-apoptotic effect upon binding with death receptors. Expression of the FADD protein has not been reported in stomach cancer. The aim of this study was to explore the expression status of the FADD protein in stomach cancers. Materials and Methods: In the current study, we analyzed the expression of the FADD protein in 60 advanced stomach cancer by using immunohistochemistry and a tissue microarray approach. Results: Immunopositivity (defined as $\geq\30\%$) was observed for the FADD protein in 23 ($38\%$) of the 60 cancers. Normal gastric mucosal cells showed expression of the FADD protein. Conclusion: Taken together, these results indicate that decreased expression of the FADD protein is a frequent event in stomach cancers and suggest that to avoid apoptosis, stomach cancer cells in vivo may need loss of FADD expression, which might contribute to tumor development.

• Journal of Hospice and Palliative Care
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• 제24권2호
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• pp.97-108
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• 2021

Purpose: The purpose of this study was to examine the life-sustaining treatment decisions of terminal cancer patients. Methods: Data on 10 terminal cancer patients who decided to withhold or withdraw from treatment were collected using in-depth interviews conducted from February 8 to October 30, 2019. Data were collected until saturation was reached and then analyzed using Colaizzi's phenomenological method. Results: In this study, six thematic clusters were identified: "having complicated feelings", "making choices to protect everyone", "accepting and preparing for death", "feeling distress", "pursuing spiritual wellbeing", and "evaluating the new system". Conclusion: When facing death, terminal cancer patients often made choices to protect their family and their dignity with uneasiness of mind when deciding to withdraw from life-sustaining treatments. Though many patients had accepted and prepared for death, they experienced distress about leaving children behind after death. They also pursued spiritual well-being to find peace after deciding to withdraw from life-sustaining treatment. In addition, participants evaluated the new system of policies pertaining to decisions on life-sustaining treatment. Thus, various approaches regarding acceptance and preparation for death, communication with family, hope, and spiritual comfort should be taken in educational interventions to assist terminal cancer patients as they decide whether to withdraw from life-sustaining treatment.