• 한국약용작물학회지
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• 제18권3호
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• pp.157-167
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• 2010

We investigated a method to improve anticancer activities of Acer mono wood extracts by ultra high pressure extraction process. The A. mono was extracted by water at $40^{\circ}C$ and 300 MPa for 15 min (High Pressure Extraction, HPE). The extraction yield by ultra high pressure extraction process was 5.42%. The cytotoxicity on human normal lung cell (HEL299) of the extracts from HPE showed 21.54% lower than that from conventional water extraction at $100^{\circ}C$ in adding the maximum concentration of 1.0 mg/$m{\ell}$. Ultra high pressure extracts process for 15 minutes extracts (HPE15) showed more potent scavenging effect than the control, BHA. On SOD-like test, the HPE15 showed highest activity as 32.4% at 1.0 mg/$m{\ell}$ concentration. Human stomach adenocarcinoma, liver adenocarcinoma, breast adenocarcinoma and lung adenocarcinoma cell growth were inhibited up to about 67~79%, in adding 1.0 mg/$m{\ell}$ of extracts from HPE. HPE was 20~25% higher than conventional water extraction. It was interesting that, among several cancer cell lines (stomach adenocarcinoma, liver adenocarcinoma), the growth of digestive related cancer cells were most effectively inhibited as about 75~79%. On in vivo experiment using ICR mice, the variation of body weight of mice group treated A. mono wood extracts from HPE of 100 mg/kg/day concentration was very lower than control and other group. The survival times of group treated this extracts was 61.96% longer than that of the control group and this extracts showed the lower tumor weight, which were 10.49 g than positive control as 16.17 g. Based on these results, we could tell that the HPE wood extracts of A. mono had higher anticancer activity than conventional water extraction. The results of HPE showed obvious advantages in higher efficiency, shorter extraction time, at lower energy costs.

• 한국산림과학회지
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• 제100권1호
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• pp.14-24
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• 2011

고로쇠 수피 수용성 추출물의 나노입자화를 통하여 항암활성 증진에 대하여 연구하였다. 먼저 세포독성 측정결과 인간 정상 폐 세포(HEL299)에 대하여 일반 열수 추출물이 1.0 mg/mL의 농도에서 23.51%로 나노입자에 비하여 낮은 세포독성을 나타내었다. 그리고 DPPH radical 소거 활성 실험결과 고로쇠 추출물 나노입자가 높은 항산화 활성을 나타내었고, SOD 유사활성 결과에서도 1.0 mg/mL의 농도에서 32.33%로 일반 열수 추출물에 비하여 높은 항산화 활성을 나타내었다. 인간 위암세포, 간암세포, 유방암세포 그리고 폐암세포에 대하여 암세포 억제 활성 측정결과 고로쇠 추출물 나노입자의 경우 1.0 mg/mL의 농도에서 59-73%의 억제 활성을 나타내었다. 나노입자의 경우 일반 열수 추출물에 비하여 약 5-10% 이상 증진된 활성을 보였다. 그리고 여러 인간 암세포주에 대한 항암실험 결과, 소화기계통의 암세포주에 대하여 71-73%의 암세포 억제 활성을 나타내어 다른 암세포주에 비하여 높은 암세포억제 활성을 보였다. 이러한 결과를 인간 위암세포인 AGS로의 나노입자 침투를 confocal microscope 관찰을 통하여 확인하였다. 위와 같은 결과를 바탕으로 하여 고로쇠 추출물을 나노입자화 공정을 통하여 활성 증진을 확인하였고, 천연 항산화제, 항암소재로서의 활용이 가능할 것으로 사료된다.

• Asian Pacific Journal of Cancer Prevention
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• 제15권23호
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• pp.10483-10487
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• 2015

Heptaphylline derivatives are carbazoles in Clausena harmandiana, a medicinal plant that is utilized for headache, stomach ache, and other treatments of illness. The present study examined the effects of heptaphylline and 7-methoxyheptaphylline on apoptosis of human colon adenocarcinoma cells (HT-29 cell line). Quantification of cell viability was performed using cell proliferation assay (MTT assay) and of protein expression through immunoblotting. The results showed that only heptaphylline, but not 7-methoxyheptaphylline, significantly significantly activated cleaved of caspase-3 and poly (ADP-ribose) polymerase (PARP-1) which resulted in HT-29 cell death. We found that heptaphylline activated BH3 interacting-domain death agonist (Bid) and Bak, proapoptotic proteins. In contrast, it suppressed X-linked inhibitor-of-apoptosis protein (XIAP), Bcl-xL and survivin, inhibitors of apoptosis. In addition, heptaphylline inhibited activation of NF-${\kappa}B$/p65 (rel), a regulator of apoptotic regulating proteins by suppressing the activation of Akt and $IKK{\alpha}$, upstream regulators of p65. The findings suggested that heptaphylline induces apoptosis in human colon adenocarcinoma cells.

• Food Science and Biotechnology
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• 제16권1호
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• pp.163-166
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• 2007

The cytotoxic effects of partially purified substances from Bacillus polylfermenticus SCD toward a variety tumor cell lines were studied. Cytotoxic activity was determined with regard to the A549 (human lung carcinoma), AGS (human stomach adenocarcinoma), DLD-1 (human colon adenocarcinoma), HEC-1-B (human uterus adenocarcinoma), SW-156 (human kidney carcinoma), and NIH/3T3 (murine normal fibroblast) cell lines using the MTT assay. Cytotoxic substances were partially purified through Diaion HP-20 columns and extracted with methanol or other organic solvents (n-hexane, chloroform, ethylacetate, and butanol). B. polyfermenticus SCD supernatant showed up to 60% inhibition of cell viability fer all five human cancer cell lines tested. When treated with 10 mg/mL of n-hexane, chloroform, ethylacetate, and butanol extract, HEC-1-B cells showed a 25,62,35, and 63% rate of inhibition respectively, and AGS cells showed a 72, 61, 44, and 67% rate of inhibition, respectively. At a concentration of 10 mg/mL, 100% methanol Diaion HP-20 extracts showed inhibition rates of 97.0% toward A-549 cells, 98.1% toward AGS cells, 81.6% toward DLD-1 cells, 83.5% toward HEC-1-B cells, and 92.7% toward SW-156 cells. These results indicate that partially purified fractions from B. polyfermenticus SCD have the potential to inhibit not only colon cancer cells, but also lung, stomach uterus, and kidney cancer cells. Further studies are needed to characterize the cytotoxic substances released in B. polyfermenticus SCD cultures.

• Journal of Digestive Cancer Research
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• 제11권3호
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• pp.165-170
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• 2023

Gastric cancer is histologically classified into two types. One is the intestinal and diffuse type according to Lauren's classification, and the other is the differentiated and undifferentiated type based on Nakamura's classification. In 2007, Japanese groups proposed a new type of well-differentiated gastric adenocarcinoma in the gastric fundic glands with distinct endoscopic and clinicopathologic features. This is gastric adenocarcinoma of the fundic-gland type (GA-FG), a rare variant of gastric cancer. In a 2012 Korean study, of 6,000 cases of gastric cancer tissues, only three cases of GA-FG were identified. GA-FG is usually located in the upper third of the stomach and not known to be associated with the Helicobacter pylori infection. We herein report a case of GA-FG diagnosed in a 63-year-old man. A gastric polyp was incidentally detected during an upper endoscopy screening while conducting a health check-up, and he was diagnosed with GA-FG after an endoscopic mucosal resection (EMR) was conducted for diagnostic and therapeutic purposes. Our case suggests that for both diagnostic and therapeutic purposes, EMR may be beneficial in case of gastric polyps with suspected GA-FG.

• Asian Pacific Journal of Cancer Prevention
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• 제16권18호
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• pp.8203-8210
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• 2016

Adenocarcinomas (AC) are the most frequently encountered carcinomas. It may be quite challenging to detect the primary origin when those carcinomas metastasize and the first finding is a metastatic tumor. This study evaluated the role of sex hormone binding globulin (SHBG) positivity in tumor cells in the subclassification and detection of the original organ of adenocarcinomas. Between 1994 and 2008, 64 sections of normal tissue belonging to ten organs, and 116 cases diagnosed as adenoid cystic carcinoma and mucoepidermoid carcinoma of the salivary gland, lung adenocarcinoma, invasive ductal carcinoma of the breast, adenocarcinoma of stomach, colon, gallbladder, pancreas and prostate, endometrial adenocarcinoma and serous adenocarcinoma and mucinous adenocarcinoma of the ovary, were sent to the laboratory at the Department of Pathology at the Yuzuncu Yil University School of Medicine, where they were stained immunohistochemically, using antibodies against SHBG. The SHBG immunoreactivity in both the tumor cells and normal cells, together with the type, diffuseness and intensity of the staining were then evaluated. In the differential diagnosis of the adenocarcinomas of the organs, including the glandular structures, impressively valuable results are encountered in the tumor cells, whether the SHBG immunopositivity is evaluated alone or together with other IHC markers. Further extensive research with a larger number of cases, including instances of cholangiocarcinoma and cervix uteri AC [which we could not include in the study for technical reasons] should be performed, in order to appropriately evaluate the role of SHBG in the differential diagnosis of AC.

• 동의생리병리학회지
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• 제23권5호
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• pp.1041-1048
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• 2009

The development of skin metastasis is usually a morbid prognostic feature although they occur infrequently. Adenocarcinomas account for up to about 70% of all metastatic skin cancer. In general, adenocarcinomas are the most difficult metastatic tumor to accurately identify the primary site because they don't have distinctive histological features. For this reason, immunohistochemistry have been used to help identify the origin of metastatic adenocarcinomas. This study performed immunohistochemical staining with metastatic adenocarcinomas of the skin using a variety of antisera to find out characteristic immunohistochemical findings of them. This study was made upon the 29 cases of metastatic adenocarcinomas of the skin, which had been confirmed histopathologically in Chonbuk National University Hospital from January, 1986 to April, 2006, Paraffin blocks were colledted and homemade tissue arrays were made. We performed immunohistochemical staning using 12 antibodies (MUC1, 2, 5AC, 6, cytokeratin (CK) 7, 20, thyroid transcription factor-1 (TTF-1), estrogen receptor (ER), progesterone receptor (PR), beta-catenin, cox-2, claudin-1). The mean age at the time of diagnosis was 60.7 years and the male to female ratio was 1.2:1.0. The most common primary site was lung, followed by stomach and colorectum. MUC1 was expressed by most colorectal, breast and lung adenocarcinoma. MUC2 was expressed infrequently. MUCSAC was expressed by most gastric and colorectal cancer MUC6 was not specific of any primary site in this series. CK7+/CK20+immunophenotype was observed in gastric, lung, colorectal adenocarcinoma. CK7+/CK20- immunophenotype was observed in breast, lung, endometrial, uterine cervical, bile duct adenocarcinoma, while CK7-/CK20+ immunophenotype was observed only in colorectal adenocarcinoma. This results show the utility of TTF-1 to confirm the pulmonary origin. On the other hand ER and PR were not useful markers to assess the origin of primary tumor in this series.

• Asian Pacific Journal of Cancer Prevention
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• 제16권7호
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• pp.2757-2761
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• 2015

Background: Stomach cancer is the fourth most common cancer and the second leading cause of cancer-related death through the world. It is predicted that the number of new cancer cases will be more than 15 million cases by 2020. Regarding the lack of studies on this topic in the country, we have thoroughly examined the patho-epidemiology of stomach cancer in Iran. Materials and Methods: In this cross- sectional study data were collected retrospectively reviewing all new stomach cancer patients in Cancer Registry Center report of health deputy for Iran during a 6-year period (2003-2008). The study also examined the morphology of common stomach cancers. Trends in incidence and morphology underwent joinpoint regression analysis. Results: During the six-year period, a total of 35,171 cases of stomach cancer were registered. Average age standardized rate for females and males were equal to 7.1 and 15.1 per 100,000 persons, respectively. Most common histological type was adenocarcinoma, NOS with 21,980 cases (62.50%). The annual percentage change (APC) in age-standardized incidence rate (per 100,000) was increase in both females and males at 11.1 (CI: 4.3 to 18.3) and 9.2 (CI: 5.2 to 13.4), respectively. Conclusions: According to our results, the incidence of gastric cancer is increasing in Iran, so further epidemiological studies into the etiology and early detection are essential.

• Journal of Yeungnam Medical Science
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• 제12권1호
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• pp.1-9
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• 1995

최근 3년간 영남대학교 의과대학 병리학교실에 의뢰되어 진단되었던 위선종 25례와 위선암종 64례를 대상으로 항 PCNA항체를 이용한 면역 조직화학적 염색을 시행하여 다음과 같은 결과를 얻었다. 1) PCNA 양성율은 대조군 $29.14{\pm}12.77%$, 위선종 $44.09{\pm}17.11%$, 위선암종 $80.15{\pm}10.69%$로서 대조군, 위선종, 위선암종 순으로 유의한 증가를 보였다. 2) 위선암종에 있어서 PCNA 양성율을 조직학적 분화도와 비교한 결과, 중분화형 및 저분화형은 고분화형에 비해 반응도가 증가하는 경향이 있지만 3등급 간에 통계적 유의성은 없었다. 3) 위선암종의 PCNA 양성율을 침습 정도와 비교한 결과, 그 정도가 심할수록 증가하는 경향을 보였으나 통계적 유의성은 없었고, 조기위암군과 진행성 위암군으로 대별할 경우 진행성 위암종에서 의의있는 증가를 보였다. 4) 위선암종의 PCNA 양성율을 림프절 전이상태와 비교한 결과, 림프절 전이가 있는 선암종에서 림프절 전이가 없는 선암종에 비해 의의있는 증가를 보였다. 이상의 결과를 종합하면 PCNA 양성반응은 위선종과 위선암종의 감별진단에 크게 도움을 주리라 사료되며, PCNA는 위선암종의 침윤과 전이에 밀접한 관계가 있을 것으로 생각되어 예후 측정에 보조적인 가치가 있을 것으로 추정되었다. 그러 나 PCNA 반응도만으로는 독립적인 예후 척도로 인정하기 어려울 것으로 생각되며 다른 예후 인자와 함께 고려하는 것이 유용할 것으로 생각되었다.

• 한국임상수의학회지
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• 제24권2호
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• pp.284-287
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• 2007

A case of gastric adenocarcinoma signet ring cell type was described in a ten-year-old female Jindo dog having about three months history of vomiting, anorexia and weight loss. On radiology, ultrasonography and computed tomography, thickness of the gastric fundus was irregularly increased. On necropsy, the gastric fundus was markedly thickened and gastric rugae were attenuated. The cardia and distal esophagus were also thickened. On histopathology, the mucosa was obliterated by neoplastic proliferation of round to polyhedral cells. The neoplastic cells had abundant vacuolated cytoplasm containing mucin. The neoplasm was infiltrated into the submucosa and muscle layer. Metastatic focus was not observed.