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Song KE, Hong SS, Hwang HR, Hong SH, Shim SI. Effect Analysis of Hydrogen Peroxide Using Hyperspectral Reflectance in Sorghum [ Sorghum bicolor (L.) Moench] under Drought Stress. Plants (Basel) 2023; 12:2958. [PMID: 37631169 PMCID: PMC10459410 DOI: 10.3390/plants12162958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023]
Abstract
Due to global climate change, adverse environments like drought in agricultural production are occurring frequently, increasing the need for research to ensure stable crop production. This study was conducted to determine the effect of artificial hydrogen peroxide treatment on sorghum growth to induce stress resistance in drought conditions. Hyperspectral analysis was performed to rapidly find out the effects of drought and hydrogen peroxide treatment to estimate the physiological parameters of plants related to drought and calculate the vegetation indices through PLS analysis based on hyperspectral data. The partial least squares (PLS) analysis collected chlorophyll fluorescence variables, photosynthetic parameters, leaf water potential, and hyperspectral reflectance during the stem elongation and booting stage. To find out the effect of hydrogen peroxide treatment in sorghum plants grown under 90% and 60% of field capacity in greenhouses, growth and hyperspectral reflectance were measured on the 10th and 20th days after foliar application of H2O2 at 30 mM from 1st to 5th leaf stage. The PLS analysis shows that the maximum variable fluorescence of the dark-adapted leaves was the most predictable model with R2 = 0.76, and the estimation model suitability gradually increased with O (R2 = 0.51), J (R2 = 0.73), and P (R2 = 0.75) among OJIP parameters of chlorophyll fluorescence analysis. However, the estimation suitability of predictions for moisture-related traits, vapor pressure deficit (VPD, R2 = 0.18), and leaf water potential (R2 = 0.15) using hyperspectral data was low. The hyperspectral reflectance was 10% higher at 20 days after treatment (DAT) and 3% at 20 DAT than the non-treatment in the far red and infra-red light regions under drought conditions. Vogelmann red edge index (VOG REI) 1, chlorophyll index red edge (CIR), and red-edge normalized difference vegetation index (RE-NDVI) efficiently reflected moisture stress among the vegetation indices. Photochemical reflectance index (PRI) can be used as an indicator for early diagnosis of drought stress because hydrogen peroxide treatment showed higher values than untreated in the early stages of drought damage.
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Affiliation(s)
- Ki Eun Song
- Department of Plant Life Science, Hankyong National University, Ansung 17579, Republic of Korea; (K.E.S.); (S.H.H.)
| | - Se Sil Hong
- Department of Agronomy, Gyeongsang National University, Jinju 52828, Republic of Korea; (S.S.H.); (H.R.H.)
| | - Hye Rin Hwang
- Department of Agronomy, Gyeongsang National University, Jinju 52828, Republic of Korea; (S.S.H.); (H.R.H.)
| | - Sun Hee Hong
- Department of Plant Life Science, Hankyong National University, Ansung 17579, Republic of Korea; (K.E.S.); (S.H.H.)
| | - Sang-in Shim
- Department of Agronomy, Gyeongsang National University, Jinju 52828, Republic of Korea; (S.S.H.); (H.R.H.)
- Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
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Kim S, You Y, Kim OK, Lee J, Chung JW, Shim S, Kim K, Park J, Jun W. Silymarin Prevents High-Fat Diet-Induced Muscle Atrophy by Regulating Protein Degradation and Synthesis in Mice. J Med Food 2022; 25:793-796. [PMID: 35723637 DOI: 10.1089/jmf.2021.k.0175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Silymarin is found in Silybum marianum. We investigated the effect of silymarin on muscle atrophy in obese mice. The experimental mice were divided into three groups: CON, normal diet; HFD, 60% high-fat diet (HF); and SILY: 50 mg silymarin +60% HF. It was confirmed that increases in body weight and fat mass in the SILY group were significantly inhibited. Moreover, the muscle mass in SILY mice was significantly higher than that in the HFD group. The grip strength in HFD group was significantly reduced, whereas in the SILY group it was higher than that in HFD group. In HFD mice, the mRNA levels of protein degradation factors (muscle ring-finger protein 1 [MuRF-1] and Atrogin-1) were increased and protein synthesis factors (phosphoinositide 3-kinase [PI3K] and Akt) were decreased. However, silymarin was found to elevate the degradation factors as compared with HFD group, whereas it reduced the synthesis factors. The results suggest that silymarin could prevent not only obesity but also muscle atrophy.
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Affiliation(s)
- Shintae Kim
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea
| | - Yanghee You
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea
| | - Ok-Kyung Kim
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea.,Research Institute for Human Ecology, Chonnam National University, Gwangju, Korea
| | - Jeongmin Lee
- Department of Medical Nutrition, Kyung Hee University, Yongin, Korea
| | - Jin Woong Chung
- Department of Biological Science, Dong-A University, Busan, Korea
| | - Sangin Shim
- Division of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Korea
| | - Kyungmi Kim
- Department of Biofood Analysis, Bio Campus of Korea Polytechnic, Ganggyung, Korea
| | - Jeongjin Park
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea.,Research Institute for Human Ecology, Chonnam National University, Gwangju, Korea
| | - Woojin Jun
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea.,Research Institute for Human Ecology, Chonnam National University, Gwangju, Korea
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Kim HR, Choi H, Park SY, Song YC, Kim JH, Shim S, Jun W, Kim KJ, Han J, Chi SW, Leem SH, Chung JW. Endoplasmin regulates differentiation of tonsil-derived mesenchymal stem cells into chondrocytes through ERK signaling. BMB Rep 2022. [PMID: 35168699 PMCID: PMC9152576 DOI: 10.5483/bmbrep.2022.55.5.173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
It is well-known that some species of lizard have an exceptional ability known as caudal autotomy (voluntary self-amputation of the tail) as an anti-predation mechanism. After amputation occurs, they can regenerate their new tails in a few days. The new tail section is generally shorter than the original one and is composed of cartilage rather than vertebrae bone. In addition, the skin of the regenerated tail distinctly differs from its original appearance. We performed a proteomics analysis for extracts derived from regenerating lizard tail tissues after amputation and found that endoplasmin (ENPL) was the main factor among proteins up-regulated in expression during regeneration. Thus, we performed further experiments to determine whether ENPL could induce chondrogenesis of tonsil-derived mesenchymal stem cells (T-MSCs). In this study, we found that chondrogenic differentiation was associated with an increase of ENPL expression by ER stress. We also found that ENPL was involved in chondrogenic differentiation of T-MSCs by suppressing extracellular signal-regulated kinase (ERK) phosphorylation.
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Affiliation(s)
- Hye Ryeong Kim
- Department of Biological Science, Dong-A University, Busan 49315, Korea
| | - Hyeongrok Choi
- Department of Biological Science, Dong-A University, Busan 49315, Korea
| | - Soon Yong Park
- Department of Research Center, Dongnam Institute of Radiological & Medical Sciences, Busan 46033, Korea
| | - Young-Chul Song
- Department of Physiology, Pusan National University School of Medicine, Yangsan 50612, Korea
| | - Jae-Ho Kim
- Department of Physiology, Pusan National University School of Medicine, Yangsan 50612, Korea
| | - Sangin Shim
- Department of Agronomy, Gyeongsang National University, Jinju 52828, Korea
| | - Woojin Jun
- Department of Food and Nutrition, Chonnam National University, Gwangju 61186, Korea
| | - Kyung-Jin Kim
- Department of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea
| | - Jin Han
- Department of Physiology, College of Medicine, Inje University, Busan 47392, Korea
| | - Seung-Wook Chi
- Disease Target Structure Research Center, KRIBB, Daejeon 34141, Korea
| | - Sun-Hee Leem
- Department of Health Sciences, Dong-A University, Busan 49315, Korea
| | - Jin Woong Chung
- Department of Biological Science, Dong-A University, Busan 49315, Korea
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Song KE, Lee SH, Jung JG, Choi JE, Jun W, Chung JW, Hong SH, Shim S. Hormesis effects of gamma radiation on growth of quinoa ( Chenopodium quinoa). Int J Radiat Biol 2021; 97:906-915. [PMID: 33900903 DOI: 10.1080/09553002.2021.1919783] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Abstract
PURPOSE Quinoa is an annual plant that grows well in high altitude regions with high radiation and ultraviolet intensity. It has known that high-dose radiation damages living organisms, but low-dose radiation also has a beneficial effect. Therefore, the purpose of this study is to investigate the hormesis effect of gamma-ray on quinoa by growth analysis and hyperspectral imaging. MATERIALS AND METHODS Quinoa seeds were irradiated at 50, 100, and 200 Gy emitted by 60CO. Subsequently, the seeds were germinated and transplanted into pots, then conducted growth analysis and physiological evaluation every week, and hyperspectral imaging. Photosynthetic ability was measured at 35 days after transplanting (DAT), and the plants for each dose were divided into aerial and underground parts for biomass evaluation at 91 DAT. Various vegetation indices were estimated from 14 to 35 DAT by hyperspectral analysis, and the specific bands were extracted based on the PLS model using plant height, SPAD value, and chlorophyll fluorescence parameters. RESULTS We found that plant height and biomass were increased in quinoa plants treated with a low dose (50 Gy) as compared to control. Chlorophyll content and chlorophyll fluorescence were not different between doses at the early growth stage, but as growth progressed, the plant irradiated at 200 Gy began to be lower. The photosynthetic ability of the quinoa plant treated at 50 Gy was greater than other plants at 35 DAT. The vegetation indices related to the pigment status also were higher in the plants treated by irradiation at 50 Gy than the plants grown in other doses treatment units at the beginning of the growth. Using the PLS model we collected sensitive band wavelengths from hyperspectral image analysis. Among the collected bands, eight bands closely related to plant height, nine bands to chlorophyll content, and ten bands to chlorophyll fluorescence were identified. CONCLUSION Our results showed that the growth and physiological parameters of quinoa treated by low dose gamma irradiation to seeds were greater than that of control as well as the plant with higher doses. These findings confirm that the positive changes in the characteristics of quinoa with low dose radiation indicated that hormesis occurs at 50 Gy radiation.
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Affiliation(s)
- Ki Eun Song
- Department of Agronomy, Gyeongsang National University, Jinju, Korea.,Division of Applied Science (Brain Korea 21 program), Gyeongsang National University, Jinju, Korea
| | - Seung Ha Lee
- Department of Agronomy, Gyeongsang National University, Jinju, Korea
| | - Jae Gyeong Jung
- Department of Agronomy, Gyeongsang National University, Jinju, Korea
| | - Jae Eun Choi
- Department of Agronomy, Gyeongsang National University, Jinju, Korea
| | - Woojin Jun
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea
| | | | - Sun Hee Hong
- Department of Plant Life Science, Hankyong National University, Ansung, Korea
| | - Sangin Shim
- Department of Agronomy, Gyeongsang National University, Jinju, Korea.,Institute of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Korea
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Kim S, Park J, Shin J, You Y, Kim OK, Lee J, Chung JW, Shim S, Kim K, Jun W. Ethanolic Extract of Vaccinium corymbosum Alleviates Muscle Fatigue in Mice. J Med Food 2020; 23:1225-1229. [PMID: 33170760 DOI: 10.1089/jmf.2020.4753] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The aim of this study was to evaluate the effects of ethanol extracts of Vaccinium corymbosum (VCE) on exercise-induced fatigue in mice. Mice were randomly divided into three groups; nonexercise control group (CON), exercise control group (Ex-CON), and exercise and VCE supplementation group (Ex-VCE). Compared with Ex-CON, Ex-VCE showed increased endurance exercise capacity on day 21. In Ex-VCE mice, the accumulation of lactate was inhibited and the consumption of fatty acids was enhanced, indicating the delay of muscle fatigue. In addition, VCE supplementation elevated mRNA expression levels of mitochondrial biogenesis-associated genes such as peroxisome proliferator-activated receptor-1γ coactivator 1α (PGC-1α), nuclear respiratory factor (NRF), and mitochondrial transcription factor A (Tfam) and fatty acid β-oxidation-associated genes such as carnitine palmitoyltransferase-1 (CPT-1), β-hydroxyacyl coenzyme A dehydrogenase (β-HAD), and peroxisome proliferator-activated receptor-δ (PPAR-δ). These results suggest that VCE can potentially prevent muscle fatigue by enhancing mitochondrial biogenesis and fatty acid β-oxidation.
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Affiliation(s)
- Shintae Kim
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea
| | - Jeongjin Park
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea.,Research Institute for Human Ecology, Chonnam National University, Gwangju, Korea
| | - Jinseop Shin
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea
| | - Yanghee You
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea
| | - Ok-Kyung Kim
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea
| | - Jeongmin Lee
- Department of Medical Nutrition, Kyung Hee University, Yongin, Korea
| | - Jin Woong Chung
- Department of Biological Science, Dong-A University, Busan, Korea
| | - Sangin Shim
- Division of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Korea
| | - Kyungmi Kim
- Department of Biofood Analysis, Bio Campus of Korea Polytechnic, Ganggyung, Korea
| | - Woojin Jun
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea.,Research Institute for Human Ecology, Chonnam National University, Gwangju, Korea
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6
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Park SY, Lee DG, Jo A, Choi H, Lee JE, Jeong AJ, Leem SH, Jun W, Shim S, Ye SK, Min JK, Chung JW. Extracellular Microenvironmental Change by B16F10 Melanoma-derived Proteins Induces Cancer Stem-like Cell Properties from NIH3T3 Cells. Sci Rep 2019; 9:16757. [PMID: 31727938 PMCID: PMC6856526 DOI: 10.1038/s41598-019-53326-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 10/30/2019] [Indexed: 12/20/2022] Open
Abstract
Cancer stem-like cells (CSCs) can generate solid tumors through the properties of stem cells such as self-renewal and differentiation and they cause drug resistance, metastasis and recurrence. Therefore, establishing CSC lines is necessary to conduct various studies such as on the identification of CSC origin and specific targeted therapies. In this study, we stimulated NIH3T3 fibroblasts to exhibit the characteristics of CSCs using the whole protein lysates of B16F10 melanoma cells. As a result, we induced colony formation that displayed self-renewal and differentiation capacities through anchorage-independent culture and re-attached culture. Moreover, colonies showed drug resistance by being maintained in the G0/G1 state. Colonies expressed various CSC markers and displayed high-level drug efflux capacity. Additionally, colonies clearly demonstrated tumorigenic ability by forming a solid tumor in vivo. These results show that proteins of cancer cells could transform normal cells into CSCs by increasing expression of CSC markers. This study argues the tremendous importance of the extracellular microenvironmental effect on the generation of CSCs. It also provides a simple experimental method for deriving CSCs that could be based on the development of targeted therapy techniques.
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Affiliation(s)
- Soon Yong Park
- Department of Biological Science, Dong-A University, Busan, 49315, Republic of Korea
| | - Dong Gwang Lee
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea.,Department of Biomolecular Science, University of Science & Technology, Daejeon, 34141, Republic of Korea
| | - Ara Jo
- Department of Biological Science, Dong-A University, Busan, 49315, Republic of Korea
| | - Hyeongrok Choi
- Department of Biological Science, Dong-A University, Busan, 49315, Republic of Korea
| | - Joo Eon Lee
- Division of Drug Development and Optimization, KBIO-New Drug Development Center, Cheongju, 28160, Republic of Korea
| | - Ae Jin Jeong
- Department of Pharmacology and Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
| | - Sun-Hee Leem
- Department of Biological Science, Dong-A University, Busan, 49315, Republic of Korea
| | - Woojin Jun
- Department of Food and Nutrition, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Sangin Shim
- Department of Agronomy, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Sang-Kyu Ye
- Department of Pharmacology and Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea
| | - Jeong-Ki Min
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea. .,Department of Biomolecular Science, University of Science & Technology, Daejeon, 34141, Republic of Korea.
| | - Jin Woong Chung
- Department of Biological Science, Dong-A University, Busan, 49315, Republic of Korea.
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Lee JE, Kim M, Park SY, Jo A, Choi H, Conde M, Leem SH, Shim S, Jun W, Chung JW. Lizard Tail Extracts Exert Protective Effect Against Oxidative Stress-Induced Cellular Senescence in Human Fibroblasts. J Med Food 2019; 22:639-643. [PMID: 31017501 DOI: 10.1089/jmf.2018.4369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Lizards are the evolutionarily closest animals to humans among the self-renewable species. Recent reports show that lizard tail extracts (LTE) inhibit the proliferation and angiogenesis of cancer cells but do not show any toxicity against human fibroblast cells. Nevertheless, few scientific studies investigated the effects of LTE on the treatment of skin diseases, especially oxidative stress aging. Therefore, we explored the effect of LTE on the anti-aging activity of human fibroblasts. We confirmed the anti-aging effect of LTE by SA-β-galactosidase staining. In addition, the hydrogen peroxide-induced reactive oxygen species (ROS) were decreased by the LTE, as measured by staining with the 2',7'-dichlorofluorescein diacetate reagent. We performed Western blot analysis to examine the signaling pathways. In conclusion, the LTE can prevent cellular senescence through the suppression of ROS and the downregulation of p21.
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Affiliation(s)
- Joo Eon Lee
- 1 Department of Biological Science, Dong-A University, Busan, Korea.,2 Division of Drug Development and Optimization, KBIO-New Drug Development Center, Cheongju, Korea
| | - Mira Kim
- 1 Department of Biological Science, Dong-A University, Busan, Korea
| | - Soon Yong Park
- 1 Department of Biological Science, Dong-A University, Busan, Korea
| | - Ara Jo
- 1 Department of Biological Science, Dong-A University, Busan, Korea
| | - Hyeongrok Choi
- 1 Department of Biological Science, Dong-A University, Busan, Korea
| | - Mohamed Conde
- 1 Department of Biological Science, Dong-A University, Busan, Korea
| | - Sun-Hee Leem
- 1 Department of Biological Science, Dong-A University, Busan, Korea
| | - Sangin Shim
- 3 Department of Agronomy, Gyeongsang National University, Jinju, Korea
| | - Woojin Jun
- 4 Department of Food and Nutrition, Chonnam National University, Gwangju, Korea
| | - Jin Woong Chung
- 1 Department of Biological Science, Dong-A University, Busan, Korea
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Kim B, Park J, Yoon HG, Choi KC, Kim K, Lee J, Chung JW, Shim S, You Y, Jun W. Effect of Ethanol Extract of Canavalia gladiata on Endurance Swimming Capacity in Mice. J Med Food 2016; 19:990-993. [PMID: 27696957 DOI: 10.1089/jmf.2016.3733] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The effects of Canavalia gladiata ethanolic extract on endurance swimming capacity were evaluated in a mouse model. The mice were orally administered distilled water (CON), hot water extract (CGW), or 80% ethanol extract (CGE). The swimming time to exhaustion was significantly prolonged in the CGE group. Of the three groups, the CGE showed the lowest blood lactate and the highest nonesterified fatty acid and muscle glycogen levels. These results suggest that the administration of CGE could improve endurance swimming capacity by enhancing lipid catabolism and thereby preserving glycogen stores.
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Affiliation(s)
- Beomjeong Kim
- 1 Division of Food and Nutrition, Chonnam National University , Gwangju, Republic of Korea
| | - Jeongjin Park
- 2 Research Institute for Human Ecology, Chonnam National University , Gwangju, Republic of Korea
| | - Ho-Geun Yoon
- 3 Department of Biochemistry and Molecular Biology, College of Medicine, Yonsei University , Seoul, Republic of Korea
| | - Kyung-Chul Choi
- 4 Department of Biomedical Sciences, University of Ulsan College of Medicine , Seoul, Republic of Korea
| | - Kyungmi Kim
- 5 Department of Biofood Analysis, Korea Bio Polytechnic , Ganggyung, Republic of Korea
| | - Jeongmin Lee
- 6 Department of Medical Nutrition, Kyung Hee University , Yongin, Republic of Korea
| | - Jin Woong Chung
- 7 Department of Biological Science, Dong-A University , Busan, Republic of Korea
| | - Sangin Shim
- 8 Division of Agriculture and Life Sciences, Gyeongsang National University , Jinju, Republic of Korea
| | - Yanghee You
- 1 Division of Food and Nutrition, Chonnam National University , Gwangju, Republic of Korea
| | - Woojin Jun
- 1 Division of Food and Nutrition, Chonnam National University , Gwangju, Republic of Korea.,2 Research Institute for Human Ecology, Chonnam National University , Gwangju, Republic of Korea
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Seo E, You Y, Yoon HG, Kim B, Kim K, Lee YH, Lee J, Chung JW, Shim S, Jun W. Rosa rugosa Aqueous Extract Alleviates Endurance Exercise-Induced Stress. J Med Food 2015; 18:711-3. [DOI: 10.1089/jmf.2014.3290] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Eunjin Seo
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea
| | - Yanghee You
- Research Institute for Human Ecology, Chonnam National University, Gwangju, Korea
| | - Ho-Geun Yoon
- Department of Biochemistry and Molecular Biology, College of Medicine, Yonsei University, Seoul, Korea
| | - Boemjeong Kim
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea
| | - Kyungmi Kim
- Department of Biofood Analysis, Korea Bio Polytechnic, Ganggyung, Korea
| | - Yoo-Hyun Lee
- Department of Food and Nutrition, University of Suwon, Suwon, Korea
| | - Jeongmin Lee
- Department of Medical Nutrition, Kyung Hee University, Yongin, Korea
| | - Jin Woong Chung
- Department of Biological Science, Dong-A University, Busan, Korea
| | - Sangin Shim
- Division of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Korea
| | - Woojin Jun
- Division of Food and Nutrition, Chonnam National University, Gwangju, Korea
- Research Institute for Human Ecology, Chonnam National University, Gwangju, Korea
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Abstract
The performance-enhancing effects of Pseudosasa japonica were investigated in mice using an adjustable-current water pool. Compared to the control group, a 1.5-fold increase in swimming time was observed in the mouse group administered an 80% ethanol extract (PJE) of the leaves of P. japonica. The blood lactate level, an important indicator of fatigue, was significantly lower (28%, P<0.05) in PJE group than in the control group. These results suggest that PJE possesses stimulatory effects that can enhance exercise endurance and reduce fatigue.
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Affiliation(s)
- Yanghee You
- Department of Food and Nutrition, Chonnam National University, Korea
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11
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Choi H, You Y, Hwang K, Lee J, Chun J, Chung JW, Shim S, Park CS, Jun W. Isolation and identification of compound from dropwort (Oenanthe javanica) with protective potential against oxidative stress in HepG2 cells. Food Sci Biotechnol 2011. [DOI: 10.1007/s10068-011-0240-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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You Y, Jun W, Kim K, Lee J, Hwang K, Lee KW, Chung JW, Shim S. Isolation of antioxidant with exercise enhancing potential from Pseudosasa japonica leaves. Food Sci Biotechnol 2010. [DOI: 10.1007/s10068-010-0080-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Abstract
Intratendinous ganglion cyst is a very rare lesion with an unknown aetiology that originates within the tendon. We encountered a case of 43-year-old woman who complained of a palpable, non-tender mass in the thigh with increasing swelling. An intratendinous ganglion cyst in the semimembranosus tendon of the lower extremity was diagnosed and located by ultrasound and MRI. Nine months after a surgical excision, there were recurrent ganglion cysts along the semimembranosus tendon. We describe this case with a review of the relevant literature.
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Affiliation(s)
- S K Kim
- Departments of Radiology, College of Medicine, Catholic University of Korea Seoul Korea
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14
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Abstract
T-cell lymphomas are a biologically heterogeneous group of diseases with varying clinical presentations and outcomes. We tried to understand the effect of Epstein-Barr virus (EBV) on lymphogenesis, prognostic factors and drug resistance of T-cell lymphomas, and to establish their relationship with international prognostic factors. Formalin-fixed paraffin-embedded tissue sections from 35 patients (12 women and 23 men) with T-cell lymphomas were examined to detect the presence of EBV using RNA in situ hybridization for EBV-encoded small nuclear RNA (EBER) 1/2 and immunohistochemical stain for latent membrane protein (LMP)-1. We also tried to establish the expression of p53 and P-glycoprotein (P-gp) using immunohistochemistry. The distribution according to the subgroup was: two T-lymphoblastic lymphomas, 13 NK/T-cell lymphomas, one angioimmunoblastic T-cell lymphoma, 17 peripheral T-cell lymphomas, unspecified, and two anaplastic large cell lymphomas. The EBER was detected in 15 of 35 T-cell lymphomas (42.9%) and among these it was detected in five of 17 nodal lymphomas (29.4%) and 10 of 18 extranodal lymphomas (55.6%). There was close correlation between EBER positivity and NK/T-cell lymphoma (P = 0.032). Expression of LMP was found in a proportion of tumor cells in seven of the 15 EBER-positive cases (46.7%). There was no correlation between EBER expression and complete response (CR rate), but coexpression of EBER and p53 was associated with treatment failure (P = 0.047). The 18 patients (51.4%) with p53 expression had significantly poorer outcomes compared with the 17 patients without p53 expression (CR rate, P < 0.0005; overall survival, P = 0.0102). Twenty of 35 patients (57.1%) were positive for P-gp expression. P-gp expression was significantly associated with treatment failure (P = 0.001) and overall survival (P = 0.0089). Seventeen of 35 patients (48.6%) treated with systemic chemotherapy or radiation therapy achieved a CR after initial treatment. When the prognostic factors were grouped using the international prognostic index, the CR rate was 58.8% for the low risk group, 50.0% for the low-intermediate risk group, 14.3% for the high-intermediate risk group, and 0% for the high risk group. In conclusion, high incidence of EBV was detected among Korean patients with T-cell lymphomas. Our study supports the prediction that patients who express p53 and P-gp have a poorer prognosis than those who do not and this should be considered when treatment strategies for individual patients are selected.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B, Member 1/analysis
- Adult
- Aged
- Child
- Child, Preschool
- Drug Resistance, Neoplasm
- Epstein-Barr Virus Infections/complications
- Epstein-Barr Virus Infections/pathology
- Female
- Herpesvirus 4, Human/genetics
- Herpesvirus 4, Human/isolation & purification
- Humans
- In Situ Hybridization
- Infant
- Killer Cells, Natural/pathology
- Killer Cells, Natural/virology
- Lymphoma, T-Cell/chemistry
- Lymphoma, T-Cell/mortality
- Lymphoma, T-Cell/pathology
- Lymphoma, T-Cell/virology
- Male
- Middle Aged
- Neoplasm Staging
- Prognosis
- RNA, Viral/analysis
- Survival Analysis
- Survival Rate
- Tumor Suppressor Protein p53/analysis
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Affiliation(s)
- C K Jung
- Department of Clinical Pathology, St Mary's Hospital, The Catholic University of Korea, Seoul, Korea
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15
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Choi YJ, Chakraborty S, Nguyen V, Nguyen C, Kim BK, Shim SI, Suki WN, Truong LD. Peritubular capillary loss is associated with chronic tubulointerstitial injury in human kidney: altered expression of vascular endothelial growth factor. Hum Pathol 2000; 31:1491-7. [PMID: 11150374 DOI: 10.1053/hupa.2000.20373] [Citation(s) in RCA: 149] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Chronic tubulointerstitial injury (CTI) including tubular atrophy and interstitial fibrosis represents one major determinant for the progression of chronic renal disease regardless of cause. Although peritubular capillaries (PTCs) are essential to maintain the normal structure and function of renal tubules, little is known about the role of PTCs in the development of CTI. The integrity of PTCs seems to be regulated by growth factors. Vascular endothelial cell growth factor (VEGF) has recently been recognized as a potent regulator of angiogenesis, vascular survival, and vascular permeability. Knowledge of the role of VEGF in renal disease is still rudimentary, and its role in CTI has not been explored. We analyzed the morphologic changes of PTCs and correlated them with other morphologic parameters of CTI in 32 human kidneys with various types of chronic tubulointerstitial disease. The VEGF expression was immunohistochemically evaluated. Compared with normal kidney, PTC loss (41% to 55% of control) and reduced size of PTCs (55% to 88% of control) were noted in kidneys with CTI. The PTC density was positively correlated with the proximal tubular density (r = 0.66, P <.0001), proximal tubular size (r = 0.54, P <.001), and negatively correlated with interstitial volume (r = -0.84, P <.0001). Compared with normal kidney, where podocytes were the only cell type that constantly expressed VEGF, an interesting pattern of increased VEGF expression by renal tubules, especially morphologically intact or hypertrophic ones, was shared by all cases with CTI. Loss of VEGF in sclerotic glomeruli was noted. PTC injury is pathogenetically linked to tubular atrophy, tubular loss, and interstitial fibrosis in human kidneys with CTI and might be a key factor for the progression of chronic tubulointerstitial disease. The characteristic and uniform pattern of altered VEGF expression in kidneys with CTI may result from ischemia induced by PTC loss and represent a protective mechanism against further PTC injuries. HUM PATHOL 31:1491-1497.
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Affiliation(s)
- Y J Choi
- Renal Pathology Laboratory, Department of Pathology, The Methodist Hospital and Baylor College of Medicine, Houston, TX 77030, USA
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16
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Choi YJ, Lee JD, Yang KH, Woo JY, Kim BK, Bang BK, Shim SI. Immunotactoid glomerulopathy associated with idiopathic hypereosinophilic syndrome. Am J Nephrol 2000; 18:337-43. [PMID: 9653841 DOI: 10.1159/000013362] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A case of immunotactoid glomerulopathy in an 18-year-old man with an idiopathic hypereosinophilic syndrome is presented. The patient showed cervical lymphadenopathy, asymptomatic proteinuria of nephrotic range, and hematuria without any defined immunologic disease. Marked and prolonged hypereosinophilia was found in peripheral blood (eosinophil count; 6,248/mm3) and bone marrow (eosinophil series; 32%). Diffuse and/or nodular eosinophilic infiltration was identified in multiple organs such as kidney, stomach, liver, lymph node, and skin. Renal biopsy revealed endocapillary proliferative features of typical immunotactoid glomerulopathy with IgG and C3 deposition and microtubular structures of variable size, 20-80 nm in diameter, mainly in the subendothelium. This study suggests that immunotactoid glomerulopathy may be a secondary immunologic manifestation of the tissue damage by eosinophils in the idiopathic hypereosinophilic syndrome.
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Affiliation(s)
- Y J Choi
- Department of Clinical Pathology, Catholic University Medical College, Seoul, Korea.
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17
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Abstract
A case of intestinal angiocentric T/NK-cell lymphoma in a 58-year-old man is reported. The patient presented initially with panperitonitis because of perforation of sigmoid colon diverticulum. He underwent segmentectomy of involved bowel. Histologically, the intestinal wall showed diffuse infiltration of medium or large size lymphoma cells with angiocentric growth and necrosis. The lymphoma cells were CD56+, CD45RO+, CD3+, CD4-, CD8-, CD20-, and CD30- in paraffin sections with germline configuration of TCR-gamma gene, consistent with T/NK-cell lymphoma. Further staging revealed splenomegaly. Intestinal angiocentric T/NK cell lymphoma represents a distinct etiology of diverticulum with perforation.
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MESH Headings
- CD56 Antigen/analysis
- Colon/pathology
- Colonic Neoplasms/diagnostic imaging
- Colonic Neoplasms/pathology
- DNA, Neoplasm/analysis
- Diagnosis, Differential
- Diverticulitis, Colonic/diagnostic imaging
- Diverticulitis, Colonic/pathology
- Humans
- Immunoglobulin Heavy Chains/genetics
- Killer Cells, Natural/chemistry
- Killer Cells, Natural/pathology
- Lymphoma, T-Cell/chemistry
- Lymphoma, T-Cell/pathology
- Male
- Middle Aged
- Necrosis
- Peritonitis/diagnostic imaging
- Peritonitis/pathology
- Receptors, Antigen, T-Cell/genetics
- Tomography, X-Ray Computed
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Affiliation(s)
- Y S Lee
- Department of Clinical Pathology, College of Medicine, The Catholic University of Korea, Seoul.
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18
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Abstract
BACKGROUND Even modern automatic cell counters cannot count basophils precisely. Therefore, we need a rapid, accurate, precise, and easy method for counting basophils. METHODS Using flow cytometry, basophils (CD22+/CD19-) and B cells (CD22+/CD19+) were counted. Within a large lymphocyte light scatter gate, % basophils (G%baso) and % B cells (G%B) were determined from the total count. Another method of analysis was to make two regions (R1 for basophils and R2 for B cells) and to determine in those the % basophils (R1%baso) and % B cells (R2%B) without gating. The flow cytometric basophil counts of the blood of 21 normal controls and 43 chronic myelogenous leukemia (CML) patients were compared with manual basophil count (Ma%baso) and basophil count by Coulter electronic cell counter (Hialeah, FL) (Auto%baso). CD22+/CD19- cells were sorted by a FACSCalibur (Becton Dickinson, San Jose, CA). RESULTS The G%baso of all samples was 4.66 +/- 5.35%, and R1%baso was 4.23 +/- 4.88%, and they were well-correlated (r = 0.996, P < 0.001). The G%B of all samples was 1.55 +/- 1.68%, and R2%B was 1.59 +/- 1.67%, and they were also well-correlated (r = 0.993, P < 0.001). Their correlation was better in normal controls than in CML. G%baso was well-correlated to Ma%baso (r = 0.827) and Auto%baso (r = 0.806), and R1%baso was well-correlated to Ma%baso (r = 0.831) but showed poor correlation to Auto%baso (r = 0.734). Auto%baso revealed the poorest correlation to Ma%baso (r = 0.692). The sorted CD22+/CD19- cells were all basophils (99.48 +/- 0.30%), and they revealed CD13, CD33, and dim CD45 expression, whereas CD3, CD14, CD16, and HLA-DR were not detected on them. CONCLUSIONS We discovered a specific marker combination to identify basophils (CD22+/CD19-), and we suggest that flow cytometric analysis using these markers is an easy, reliable, and accurate method of basophil counting.
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MESH Headings
- Antigens, CD/metabolism
- Antigens, CD19/metabolism
- Antigens, Differentiation, B-Lymphocyte/metabolism
- B-Lymphocytes/cytology
- Basophils/cytology
- Basophils/metabolism
- Cell Adhesion Molecules
- Cell Separation
- Flow Cytometry/methods
- Fluorescent Antibody Technique, Indirect
- Humans
- Immunophenotyping/methods
- Lectins
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/blood
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukocyte Count/methods
- Sialic Acid Binding Ig-like Lectin 2
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Affiliation(s)
- K Han
- Department of Clinical Pathology, Catholic University Medical College, Seoul, Korea.
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19
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Park YJ, Oh EJ, Kim BK, Kim SM, Shim SI. Phenotypic characteristics of Enterococcus faecium variants confirmed by intergenic ribosomal polymerase chain reaction and E. faecium polymerase chain reaction. Diagn Microbiol Infect Dis 1999; 34:269-73. [PMID: 10459476 DOI: 10.1016/s0732-8893(99)00041-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enterococcus faecium has recently emerged as a serious nosocomial pathogen. The emergence of multiple antimicrobial agent-resistant E. faecium has been remarkable; with its strains it is one of the most phenotypically heterogeneous of all enterococcal species. About 15% of enterococcal strains isolated from human clinical specimens were found to have atypical biochemical characteristics. In order to determine if these strains were E. faecium variants, intergenic ribosomal polymerase chain reaction (ITS-PCR) and E. faecium PCR (EfPCR) were performed in 45 atypical strains, and the two PCR results were used to analyze phenotypic characteristics of the strains. As many as 60% (27/45) of the atypical strains were identified as E. faecium. Thus, it is concluded that if an enterococcal strain shows positive reaction to arabinose, arginine, and ribose and negative reaction to methyl-alpha-D-glucopyranoside and pigment, it should be identified as E. faecium.
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Affiliation(s)
- Y J Park
- Department of Clinical Pathology, College of Medicine, Catholic University of Korea, Seoul, Korea
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20
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Lee W, Kim Y, Lee KY, Kang CS, Lee W, Lee KS, Shim SI, Han K. AgNOR of human interphase cells in relation to acrocentric chromosomes. Cancer Genet Cytogenet 1999; 113:14-8. [PMID: 10459340 DOI: 10.1016/s0165-4608(98)00281-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Using simultaneous detection of fluorescence in situ hybridization (FISH) to acrocentric chromosome centromeres and argyrophilic nucleolar organizer regions (AgNOR), we investigated the number of AgNOR and involvement pattern of acrocentric chromosomes in the nucleoli in various types of human interphase cells. The number of AgNOR of normal gastric mucosal epithelial cells was 2.27 +/- 1.18 and was higher than that of lymphocytes (1.08 +/- 0.28) and lower than that of gastric cancer (7.76 +/- 3.21). The number of acrocentric chromosome centromere signals of normal gastric mucosal epithelial cells was higher than that of normal leukocytes (P < 0.000), and lower than that of gastric cancer (P < 0.000). The acrocentric chromosome centromere signals in the lymphocytes and neutrophils were only half of that expected for diploid cells, perhaps related to acrocentric chromosome association. The proportion of acrocentric chromosomes attached to AgNOR in gastric cancer (0.88 +/- 0.22) was significantly higher than that of normal gastric mucosal epithelial cells (0.72 +/- 0.35, P = 0.007). In conclusion, acrocentric chromosome association appears to be present in circulating leukocytes even in interphase. The number of AgNORs and proportion of acrocentric chromosomes involved in AgNORs in human interphase cells may vary according to cell types. This could play a significant role in rDNA transcription and determination of cell phenotype, including malignant change.
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Affiliation(s)
- W Lee
- Department of Pediatrics, Catholic University Medical College, Seoul, Korea
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21
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Abstract
A case report of myxoid leiomyosarcoma of the uterus in a 54-year-old woman is presented as a rare variant of uterine sarcoma. Only 14 cases have been described in the literature. These tumors have a striking myxoid appearance and exhibit highly malignant behavior despite their low mitotic index. Although it is difficult to establish the nature of the neoplastic cells in the myxoid areas, both light microscopical and immunohistochemical characteristics showed features of smooth muscle cells in some of the cellular areas. Our patient had a tumor which arose in association with hyalinized benign leiomyomatous lesion. Like other reported cases of myxoid leiomyosarcoma, the tumor behaved aggressively.
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Affiliation(s)
- E Chang
- Department of Pathology, Catholic University of Korea, Seoul.
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22
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Abstract
Primary extranodal lymphomas of the central nervous system constitute 2% of all malignant lymphomas. The involvement of the peripheral nervous system is very rare. A solitary primary CD56-positive NK/T-cell lymphoma of the median nerve is described in a 70-year-old woman. On physical examination, a rubbery hard mass measuring 2.0 cm in diameter was palpated on the volar aspect of second to third finger of left hand. Excisional biopsy was performed. Under the fascia, a large fusiform tumor of the median nerve encapsulated with the epineurium was noted. Microscopically, the enlarged nerve showed extensive infiltration of atypical lymphoid cells. The lymphoid elements had abundant pale cytoplasm and large vesicular nuclei with peripheral prominent nuclei. The cells strongly expressed T-cell marker (UCHL-1) and natural killer cell marker (CD56). Gene rearrangement study showed rearrangement of T cell receptor (TCR-gamma).
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Affiliation(s)
- J Kim
- Department of Clinical Pathology, Catholic University of Korea, Medical College, Seoul
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23
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Kim Y, Kang CS, Lee EJ, Kim WI, Shim SI, Kim SM, Han CH, Kim CC, Cho B, Lee W, Han K. Acute lymphoblastic leukemia with maturation--a new entity with clinical significance. Leukemia 1998; 12:875-81. [PMID: 9639414 DOI: 10.1038/sj.leu.2401032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The diagnosis of 'ALL with maturation' (ALLm) is proposed. One hundred and one patients with untreated ALL were entered into this study. The diagnosis of ALLm was made when more than 20% of all nucleated elements in the bone marrow showed maturation beyond prolymphocytes by light microscopic examination. The mature-appearing leukemic cells showed the same immunophenotype to remaining lymphoblasts. The number of ALLm cases was 19 (18.8%). The mean age at presentation of ALLm was 29 +/- 18, older than that of 18 +/- 16 of the remaining typical ALL (ALLt) (P = 0.015). Remission was induced with daunorubicin, vincristine, prednisone and L-asparaginase. Only two of 19 ALLm patients achieved CR after 4 weeks induction chemotherapy. In contrast, 57 of 82 (69.5%) ALLt patients achieved CR after the same induction chemotherapy. There was no significant difference in immunophenotype of ALLm compared with ALLt. Labeling index of DNA topoisomerase IIalpha (TopoLI) was studied by immunohistochemistry. Initial TopoLI of ALLm (221 +/- 147) was much lower than that of ALLt (609 +/- 262, P = 0.005). Furthermore, the remaining leukemic cells after chemotherapy were not labeled with anti-DNA topoisomerase IIalpha. The P53 protein was expressed in nine of 18 ALLm cases (50.0%) and P-glycoprotein was not expressed in ALLm cases. Twelve of 19 ALLm cases were studied for carrying bcr/abl fusion by karyotyping and/or fluorescent in situ hybridization. Only two cases revealed bcr/abl fusion. In conclusion, ALLm is a separate entity of ALL which has a very poor clinical course and is independent of other prognostic factors. The morphologically mature leukemic cells are in resting GO phase.
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Affiliation(s)
- Y Kim
- Department of Clinical Pathology, Catholic University Medical College, Seoul, Korea
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24
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Yoo J, Lee HK, Kang CS, Park WS, Lee JY, Shim SI. p53 gene mutations and p53 protein expression in human soft tissue sarcomas. Arch Pathol Lab Med 1997; 121:395-9. [PMID: 9140310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE To determine the frequency of mutation and overexpression of the p53 tumor suppressor gene in human soft tissue sarcomas. DESIGN A total of 31 soft tissue sarcomas were analyzed by immunohistochemistry for the expression of p53 protein and were subsequently investigated by the polymerase chain reaction technique and direct sequence analysis of exons 5 through 8 in the p53 gene. SETTING The specimens were collected over a 3-year period in the laboratories at our large teaching hospital in Seoul, Republic of Korea. PATIENTS Thirty-one patients with soft tissue tumor were surgically treated and diagnosed as having either malignant fibrous histiocytoma, rhabdomyosarcoma, or leiomyosarcoma. RESULTS Overexpression of p53 was seen in 17 (55%) of 31 sarcomas, including 9 (64%) of 14 malignant fibrous histiocytomas, 4 (44%) of 9 rhabdomyosarcomas, and 4 (50%) of 8 leiomyosarcomas. Seven cases (23%) demonstrated mutations in the p53 gene. Six had a single mutation, whereas one showed triple mutations. There were seven mutations in exon 5, one in exon 6, and one in exon 7. All of the mutations were missense mutations, resulting in changes in the predicted amino acid sequence. Among the nine mutations, seven (78%) were transversions and two (22%) were transitions. CONCLUSIONS Mutation of the p53 tumor suppressor gene, with resultant overexpression of p53 protein, frequently occurs in human soft tissue sarcomas, supporting the role of p53 mutations in the pathogenesis of soft tissue sarcoma and the possible usefulness of p53 immunolocalization as a screening method for p53 mutations.
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Affiliation(s)
- J Yoo
- Department of Pathology, Catholic University Medical School, Seoul, Republic of Korea
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25
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Abstract
Primary malignant peripheral nerve sheath tumors(MPNST) of the vulva are extremely rare and most of them are composed of a spindle cell component. A few cases of MPNST containing partially or purely epithelioid cells have been reported. Purely epithelioid MPNST differ from the ordinary epithelioid MPNST due to the absence of a spindle cell component. We present the first case of purely epithelioid MPNST arising in the vulva reviewing in the world literature without definite evidence of von Recklinghausen's disease or nerve involvement. The patient was a 63-year-old woman with a palpable vulvar mass, 6 x 4 x 1.5 cm in dimension, was not encapsulated but well-demarcated, ovoid and rubbery and showed pale yellow, homogeneous, fish-flesh appearance with focal cystic changes on cut surface. The histologic features consisted of solely epithelioid cells which were arranged in tight clusters or cords with solid growing pattern and focally scattered rosette-like structures. According to the immunohistochemical results, most of tumor cells were strongly positive for neuron specific enolase, and some of them were weakly positive for S-100 protein and vimentin. We considered that purely epithelioid MPNST would represent a certain degree of differentiation toward nerve or neuronal cells rather than Schwann cells.
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Affiliation(s)
- Y S Lee
- Department of Clinical Pathology, Catholic University Medical College, Seoul, Korea
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26
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Abstract
A case of squamous cell carcinoma ex pleomorphic adenoma in a palate is presented and comments on diagnostic criterias are described. The patient was 36-year-old male presenting with an ovoid elevated palate mass for 6 months. The tumor located in the junctional area of soft and hard palate. The mucosa was diffusely ulcerated and the mass focally tightly adherent to adjacent tissue. The initial cytologic and pathological diagnosis by fine needle aspiration biopsy and open biopsy was benign pleomorphic adenoma. After total removal, histologic examination revealed that tumor was composed partly of benign pleomorphic adenoma and partly of an squamous cell carcinoma component with areas of necrosis and capsular invasion. Immunohistochemical staining in the carcinoma area revealed positive reaction for low and high molecular weight cytokeratin, and epithelial membrane antigen, but negative for desmin, actin, GFAP and S-100 protein. In situ hybridization using biotinylated Epstein-Barr virus probe was done and the neoplastic cells were negative. Our case in an unusual partially encapsulated carcinoma ex pleomorphic adenoma in the palate and is not related in EBV infection.
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Affiliation(s)
- K M Kim
- Department of Clinical Pathology, Catholic University Medical College, Inchon, Korea
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27
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Han K, Oh EJ, Kim YS, Kim YG, Lee KY, Kang CS, Kim BK, Kim WI, Shim SI, Kim SM. Chromosomal numerical aberrations in gastric carcinoma: analysis of eighteen cases using in situ hybridization. Cancer Genet Cytogenet 1996; 92:122-9. [PMID: 8976368 DOI: 10.1016/s0165-4608(96)00165-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Paraffin-embedded tumor cells of 18 cases of gastric carcinoma were hybridized with digoxigenin-labeled repetitive DNA probes specific for the centromeric regions of chromosomes X, Y, 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 15, 16, 17, 18, and 20. All cases demonstrated numerical chromosomal aberrations. The most exciting aberration, polysomy (five or more copies) of several chromosomes, was found in all cases except a case of mucinous adenocarcinoma, which showed trisomy 9 as the sole chromosomal numerical aberration. In nine cases of tubular adenocarcinoma, poorly-differentiated polysomies of several chromosomes were the consistent numerical aberration and monosomy 7, 18(2 cases each), 10, and 17(1 case each) were also found. In moderately-differentiated tubular adenocarcinoma all three cases also showed polysomies of several chromosomes. The total number of extra chromosomes (polysomy was counted as 5 copies) was higher in the intestinal type (mean 20.9) than in the diffuse type (mean 14.1). Regional lymph node metastasis, vein invasion, or perineural invasion was not related to any specific chromosomal numerical aberration in gastric cancer. Chromosomes X, 1, 2, 3, 4, 15, 17, and 20 had extra copies especially polysomy in most cases. However, chromosomes 7 and 18 revealed monosomy in many cases (31.3% and 33.3% respectively, and chromosome 9 and 11 revealed trisomy in 35.7% and 75% each. Numerically, the most conserved chromosome in gastric cancer was chromosome 12 (62.5%). By flow cytometry, two diploidy and 8 aneuploidy cases with the DNA indices from 1.30 to 1.85 were found.
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Affiliation(s)
- K Han
- Department of Clinical Pathology, Catholic University Medical College Seoul, Korea
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28
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Choi YJ, Han K, Lee W, Kang CS, Kim BK, Kim SM, Shim SI. Interphase cytogenetics of non-Hodgkin's lymphoma using non-fluorescent in situ hybridization in paraffin embedded tissue. J Korean Med Sci 1996; 11:402-8. [PMID: 8934395 PMCID: PMC3054178 DOI: 10.3346/jkms.1996.11.5.402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Paraffin-embedded tissue samples from 30 cases of non-Hodgkin's lymphoma(NHL) and 10 of reactive hyperplasia, were processed for interphase cytogenetic chromosomal study. We performed non-fluorescent in situ hybridization(NFISH) using the enzymatic method with digoxigenin-labeled DNA centromeric probes for chromosome 7,12,18 and X, and a painting probe for chromosome 18. Chromosomal aberrations were observed in 27(90%) out of 30 cases of NHL. The most commonly observed numerical aberration was extracopy of X chromosome. There were some characteristic aberrations corresponding to each grade and group of NHL by International Working Formulation: In low grade NHL(9 cases), a third were associated with extracopy of chromosome 12, and disomy X was frequently found in small lymphocytic lymphoma(75%). With intermediate grade(16 cases), tetraploidy(25%), translocation of chromosome 18(25%), and extracopy of chromosome 18(19%) were characteristically associated. These results suggest that interphase NFISH is an easily performable method in retrograde cytogenetic study of archival materials. Some specifically correlated chromosomal aberrations corresponding to the histopathologic grades and groups could provide us more valuable information for determining pathologic diagnosis and assessing the clinical outcome of NHL.
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Affiliation(s)
- Y J Choi
- Department of Clinical Pathology and Pediatrics, Catholic University Medical College, Seoul, Korea
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29
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Choi YJ, Hwang TK, Kang SJ, Kim BK, Shim SI. Hemangiopericytoma of renal sinus expanding to the renal hilum: an unusual presentation causes misinterpretation as transitional cell carcinoma. J Korean Med Sci 1996; 11:351-5. [PMID: 8878806 PMCID: PMC3054093 DOI: 10.3346/jkms.1996.11.4.351] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
We report a case of renal hemangiopericytoma occurring in renal sinus and expanding to the renal hilum. This unusual presentation caused misinterpretation of this tumor as transitional cell carcinoma of the renal pelvis clinically. The patient who was a 30-year-old woman had a relatively well demarcated solid tumor, 8 x 6 cm, in the renal sinus of the left kidney.
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Affiliation(s)
- Y J Choi
- Department of Clinical Pathology and Urology, Catholic University Medical College, Seoul, Korea
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30
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Abstract
We Describe a case of ovarian serous cystadenoma having Sertoli-Leydig cell tumor, well differentiated, in the cystic septum. Well differentiated Sertoli-Leydig cell tumor coexisting with other tumor, including serous tumor, has not yet been described. In all cases of Sertoli-Leydig cell tumor with heterologous components or other tumors, the androblastomatous components are intermediately or poorly differentiated. The present case revealed a well differentiated Sertoli-Leydig cell tumor arising in a septum of serous cystadenoma, as a circumscribed nodule. With these findings, we discuss the possibility of this Sertoli-Leydig cell tumor, considered a mural nodule, which is well established in cystic common epithelial tumors of the ovary.
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Affiliation(s)
- E J Seo
- Department of Clinical Pathology, Catholic University Medical College Seoul, Korea
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31
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Lee DW, Yoon DH, Lee YS, Shim SI, Cho BK. Solitary milialike idiopathic calcinosis cutis: a case unassociated with Down syndrome. J Dermatol 1996; 23:53-5. [PMID: 8720259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We report a unique case of solitary milialike idiopathic calcinosis cutis (MICC) in a healthy Korean woman, which is not associated with Down syndrome. This case of MICC would be a form of idiopathic calcinosis cutis, which can be solitary or multiple, sporadic or associated with Down syndrome.
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Affiliation(s)
- D W Lee
- Department of Dermatology and Clinical Pathology, Catholic University Medical College, Seoul, Korea
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32
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Abstract
To evaluate the role of p53 and NDP-K/nm23(nm23) protein as a prognostic factor and their relation to metastasis of cancer, we studied metastatic and nonmetastatic gastric carcinoma specimens by immunohistochemical staining. Among the 101 specimens examined, 37(36.6%) showed positivity in staining for p53 protein and 64(63.4%) showed no detectable p53 protein in tumor cells. p53 overexpression was correlated with depth of invasion, lymphatic invasion, lymph node metastasis and distant metastasis. Out of 101 specimens, 35 cases had no staining for nm23. 62 cases(61.4%) exhibited a cytoplasmic staining on most cells and 42 cases (41.6%) had nuclear staining. In 16 of 101 cases(15.8%), a mild to moderate membranous staining was observed in some cells. Cytoplasmic nm23 expression was negatively correlated with lymph node metastasis(P < 0.01) and distant metastasis(P < 0.01). The nuclear nm23 expression showed negative correlation with depth of invasion(P < 0.01), lymphatic invasion(P < 0.01), lymph node metastasis(P < 0.01), and distant metastasis(P < 0.04). The membranous nm23 expression revealed negative correlation with lymphatic invasion(P < 0.02), lymph node metastasis(P < 0.01) and distant metastasis(P < 0.02).
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Affiliation(s)
- K M Kim
- Department of Clinical Pathology, Catholic University Medical College, Seoul, Korea
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33
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Yoo JH, Choi JY, Kim YR, Choi YJ, Shim SI, Kim HK, Yang CW, Kim YS, Hahn CW, Shin WS. Five cases of cytomegalovirus infection detected by in situ hybridization and antigenemia assay. J Korean Med Sci 1994; 9:507-12. [PMID: 7786449 PMCID: PMC3054226 DOI: 10.3346/jkms.1994.9.6.507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
We report five cases of cytomegalovirus infection in immunocompromised patients which were detected by either cytomegalovirus antigenemia assay or in situ hybridization. Four cases had leukemia and the other had chronic renal failure. All the three BMT recipients suffered from GvHD. Interestingly, there was an unique case of CMV disease without a history of BMT, which reminded us that CMV could attack immunocompromised patients who had not undergone transplantation, too. Four out of five cases died. We think that cytomegalovirus infection or disease should not be regarded as a minor problem in post-transplantation infection in Korea.
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MESH Headings
- Adolescent
- Adult
- Antigens, Viral/blood
- Bone Marrow Transplantation
- Cytomegalovirus/immunology
- Cytomegalovirus Infections/complications
- Cytomegalovirus Infections/diagnosis
- Fatal Outcome
- Graft vs Host Disease/complications
- Humans
- Immunocompromised Host
- In Situ Hybridization
- Kidney Failure, Chronic/complications
- Kidney Transplantation
- Leukemia/complications
- Leukemia/therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/complications
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/therapy
- Leukemia, Myeloid, Acute/complications
- Leukemia, Myeloid, Acute/therapy
- Male
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/complications
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/therapy
- Viremia/diagnosis
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Affiliation(s)
- J H Yoo
- Department of Internal Medicine, Catholic University Medical College, Seoul, Korea
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34
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Abstract
Graft-versus-host disease (GVHD) is a life threatening complication that may occur following allogenic bone marrow transplantation (BMT) in the patients with aplastic anemia, leukemia or genetic immunodeficiency. It has been known that GVHD occurs approximately 70% of recipients of BMT in western countries but no definite incidence has been reported in Korea. In our St. Mary's Hospital, GVHD occurs in about 30% of BMT recipients. Histopathologically the acute phase skin shows diffuse lymphocytic infiltrates in the upper dermis with extensive exocytosis. Scattered throughout the epidermis are many degenerated keratinocytes, which are often associated with one or more satellite lymphocytes (satellite cell necrosis). In the chronic phase, acanthosis, eosinophilic keratinocytes resembling colloid bodies and mononuclear cell infiltrates in the upper dermis are noted. We reviewed 5 cases of acute GVHD and 6 cases of chronic GVHD. All patients received allogenic BMT from Jan. 1, 1992 to July 1, 1993. Ten patients were male and one was female. The mean age was 34 (20-70). The pathologic diagnosis was 3 cases of CML, 2 of ALL, 2 of AML (FAB M2), 2 of aplastic anemia, 1 of CLL and 1 of AML (FAB M5). The interval from BMT to GVHD varied from 14 days to 4 years (median 220 days). The skin and GI tract were involved in all eleven cases. Ten cases were histologically proven by skin biopsies, and two cases by salivary gland and colonic biopsies, respectively. The histological findings of the skin, salivary gland and colonic biopsieds were described. Immunohistochemical stain of the skin was done using CD4, CD8, HLA DR and Leu 7 antibodies.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- K M Kim
- Catholic University Medical College, Department of Clinical Pathology
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35
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Choi YJ, Kang CS, Shin WS, Jee MK, Kim BK, Kim SM, Shim SI. Epstein-Barr virus associated posttransplant malignant lymphoma in renal allograft recipients. J Korean Med Sci 1994; 9:162-8. [PMID: 7986391 PMCID: PMC3053944 DOI: 10.3346/jkms.1994.9.2.162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
We report two cases of posttransplant malignant lymphoma(PTML) of B cell origin associated with Epstein-Barr virus(EBV) infection. They were a 52-year-old male and a 37 year-old-female, in whom intermediate-grade diffuse malignant lymphomas of large cell type developed in the submandibular area and jejunum, respectively. DNA and RNA in situ hybridization revealed the presence of EBV-specific DNA and RNA sequences in the tumor cells.
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Affiliation(s)
- Y J Choi
- Department of Clinical Pathology, Catholic University Medical College, Seoul, Korea
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36
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Abstract
Several months after left radical mastectomy without irradiation therapy for breast cancer, a 74-year-old woman developed severe edema on the homolateral arm extending to the axilla. Ten years later, purplish to brownish blotch and nodules accompanied with heating sensation and pain appeared and increased in size gradually on the left forearm. The patient was treated by irradiation therapy under the clinical and histopathologic diagnosis of Stewart-Treves syndrome and almost all of the skin lesions and symptoms disappeared after irradiation of 6450 rads.
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Affiliation(s)
- S B Lee
- Department of Dermatology, Catholic University Medical College, Seoul, Korea
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