1.Expressions of MAGE-3, PCNA, p21, and p53 Proteins in the Hypopharyngeal Squamous Cell Carcinoma Cell Line (PNUH-12) Analysed by Bivariate Flow Cytometry.
Hee Kyung CHANG ; Deok Jun KIM ; Hwan Jung ROH ; Bang HUR ; Kang Dae LEE ; SPAGNOLI
Korean Journal of Pathology 2000;34(11):901-908
MAGE (melanoma antigen gene) is a tumor specific shared antigen, presented by HLA class I molecules, which is recognized by cytotoxic T lymphocytes. MAGE proteins are expressed in malignant tumor cells, in contrast to no expression in normal or benign tissues except for testis and placenta. MAGE might be a potential target for immunotherapy of malignant tumors. However, its biological aspects associated with cell cycle are not yet described. The flow cytometry is a useful tool for objective and quantitative analyses of heterogenous tumor cell population. To understand the status of MAGE related to cell cycle and its relationship with p53 as the G1 checkpoint regulator, p21, and PCNA as a proliferative index, we investigated expression of MAGE-3 protein, mutant p53, p21, and PCNA by flow cytometry and immunohistochemical stain. In addition, double stains for MAGE-3/p53, p53/PCNA, and p53/p21 were analysed with bivariate flow cytometry. DNA histograms using MAGE-3/PI (DNA) and p53/PI (DNA) were also analysed. The cell line (PNUH- 12) used for this study originated from a hypopharyngeal squamous cell carcinoma, which has point mutation (exon 7, C-->G) of p53. The expression rate of MAGE-3 was 83%, PCNA 85%, and p53 81%. No expression for p21 was identified. MAGE-3 was expressed in cytoplasm, while both PCNA and p53 were expressed in nuclei of tumor cells. With bivariate analyses, coexpression rates of MAGE-3/p53 and p53/PCNA were 0.96 and 0.97, respectively. Both MAGE-3 and p53 showed constantly high level throughout the cell cycle. These results suggest that expression of MAGE-3 and mutant p53 is not dependent on the cell cycle. p21 seems to be inactivated.
Carcinoma, Squamous Cell*
;
Cell Cycle
;
Cell Line*
;
Coloring Agents
;
Cytoplasm
;
DNA
;
Flow Cytometry*
;
Immunotherapy
;
Mutant Proteins
;
Placenta
;
Point Mutation
;
Proliferating Cell Nuclear Antigen*
;
T-Lymphocytes, Cytotoxic
;
Testis
2.Diagnosis of Obesity and Related Biomarkers
Chang Seok BANG ; Jung Hwan OH ;
Korean Journal of Medicine 2019;94(5):414-424
Obesity is associated with various comorbidities, such as type II diabetes, hypertension, dyslipidemia, and cardiovascular disease. Gastrointestinal complications are also frequent and obesity is a direct cause of nonalcoholic fatty liver disease, and are risk factors for gastroesophageal reflux disease, pancreatitis, gallstone disease, diarrhea, dyssynergic defection, and various gastrointestinal cancers. Diagnosis is usually made by measuring body mass index (BMI). Although BMI is correlated with body fat mass, it may overestimate subjects with high muscle mass and underestimate subjects with low muscle mass. Co-measurement of waist circumference as a reflection of abdominal obesity for subjects with BMIs ranging from 25 to 35 kg/m2 has been recommended; however, it is still an anthropometric diagnosis that does not clearly discriminate subjects at risk for developing comorbidities. Biomarkers reflect the underlying biological mechanisms of obesity and can be used to characterize the obesity phenotype (i.e., at high risk for disease development) as well as a target for disease-causing factors. In this article, we describe the conventional diagnosis, biomarkers of obesity, and current challenges.
Adipose Tissue
;
Biomarkers
;
Body Mass Index
;
Cardiovascular Diseases
;
Comorbidity
;
Diagnosis
;
Diarrhea
;
Dyslipidemias
;
Gallstones
;
Gastroesophageal Reflux
;
Gastrointestinal Diseases
;
Gastrointestinal Neoplasms
;
Hypertension
;
Non-alcoholic Fatty Liver Disease
;
Obesity
;
Obesity, Abdominal
;
Pancreatitis
;
Phenotype
;
Risk Factors
;
Waist Circumference
3.Diagnosis of Obesity and Related Biomarkers
Chang Seok BANG ; Jung Hwan OH ;
Korean Journal of Medicine 2019;94(5):414-424
Obesity is associated with various comorbidities, such as type II diabetes, hypertension, dyslipidemia, and cardiovascular disease. Gastrointestinal complications are also frequent and obesity is a direct cause of nonalcoholic fatty liver disease, and are risk factors for gastroesophageal reflux disease, pancreatitis, gallstone disease, diarrhea, dyssynergic defection, and various gastrointestinal cancers. Diagnosis is usually made by measuring body mass index (BMI). Although BMI is correlated with body fat mass, it may overestimate subjects with high muscle mass and underestimate subjects with low muscle mass. Co-measurement of waist circumference as a reflection of abdominal obesity for subjects with BMIs ranging from 25 to 35 kg/m2 has been recommended; however, it is still an anthropometric diagnosis that does not clearly discriminate subjects at risk for developing comorbidities. Biomarkers reflect the underlying biological mechanisms of obesity and can be used to characterize the obesity phenotype (i.e., at high risk for disease development) as well as a target for disease-causing factors. In this article, we describe the conventional diagnosis, biomarkers of obesity, and current challenges.
4.A Case of Renal Cell Carcinoma in Horseshoe Kidney.
Jung Hwan LIM ; Bong Ryoul OH ; Soo Bang RYU ; Yang Il PARK
Korean Journal of Urology 1997;38(2):208-210
A 66-year-old man with incidentally detected mass in the left kidney visited our hospital. Intravenous pyelogram, ultrasonogram, computerized tomography suggested a renal cell carcinoma in the left side of the horseshoe kidney. A left radical nephrectomy with division of the isthmus was performed. The pathological diagnosis revealed renal cell carcinoma consisting of clear cell type without invasion of the capsule or renal pelvis.
Aged
;
Carcinoma, Renal Cell*
;
Diagnosis
;
Humans
;
Kidney Pelvis
;
Kidney*
;
Nephrectomy
;
Ultrasonography
5.Effect of Obstetric Epidural Anesthesia on the Progress of Labor.
Soo Yeon KIM ; Jung Hwan KIM ; Yong In KANG ; Myung Hee KIM ; Eun Chi BANG ; Hyun Sook LEE ; Gyung Sook JO
Korean Journal of Obstetrics and Gynecology 2000;43(12):2215-2219
No abstract available.
Anesthesia, Epidural*
6.A Case of Multiple Trichoepitheliomas and Basal Cell Carcinomas Co-existed on the Nose
Hyo Jung KIM ; Ju Hee HAN ; Chul Hwan BANG ; Jun Young LEE ; Ji Hyun LEE ; Young Min PARK
Korean Journal of Dermatology 2019;57(3):164-166
No abstract available.
Carcinoma, Basal Cell
;
Nose
7.Cherry Hemangioma Treated Using the Pharaon LipoⓇ Laser: A Report of Two Cases
Hyeok Jin KWON ; Jung Hwan KIM ; Jung Ho YOON ; Jung Hee BANG ; Ki Ho KIM
Korean Journal of Dermatology 2021;59(6):477-482
A cherry hemangioma is a type of capillary hemangioma that commonly occurs in older adults. Despite its benign nature, treatment is often required for cosmetically unacceptable lesions, and therapeutic options include electrocoagulation, sclerotherapy, cryotherapy, or laser therapy. Laser therapy using a V-beam and long-pulsed neodymium-doped yttrium aluminum garnet laser has shown favorable outcomes in patients with hemangiomas. We report two cases of cherry hemangiomas treated with the ‘Pharaon LipoⓇ laser’, an advanced and powerful diode laser that is not commonly used for hemangiomas but is selected for lipolysis and varicose vein coagulation. A 64-year-old German man presented with a several-decade history of multiple erythematous maculopapules on his chest, and a 30-year-old Korean man presented with a one-year history of similar lesions on his abdomen. Histopathological evaluation of biopsy specimens confirmed diagnosis of cherry hemangiomas. We successfully treated these lesions using the Pharaon Lipo Ⓡlaser without any adverse effect.
8.Cherry Hemangioma Treated Using the Pharaon LipoⓇ Laser: A Report of Two Cases
Hyeok Jin KWON ; Jung Hwan KIM ; Jung Ho YOON ; Jung Hee BANG ; Ki Ho KIM
Korean Journal of Dermatology 2021;59(6):477-482
A cherry hemangioma is a type of capillary hemangioma that commonly occurs in older adults. Despite its benign nature, treatment is often required for cosmetically unacceptable lesions, and therapeutic options include electrocoagulation, sclerotherapy, cryotherapy, or laser therapy. Laser therapy using a V-beam and long-pulsed neodymium-doped yttrium aluminum garnet laser has shown favorable outcomes in patients with hemangiomas. We report two cases of cherry hemangiomas treated with the ‘Pharaon LipoⓇ laser’, an advanced and powerful diode laser that is not commonly used for hemangiomas but is selected for lipolysis and varicose vein coagulation. A 64-year-old German man presented with a several-decade history of multiple erythematous maculopapules on his chest, and a 30-year-old Korean man presented with a one-year history of similar lesions on his abdomen. Histopathological evaluation of biopsy specimens confirmed diagnosis of cherry hemangiomas. We successfully treated these lesions using the Pharaon Lipo Ⓡlaser without any adverse effect.
9.Two Cases of Large Auricular Keloids.
Byung Yoon CHOI ; Sung Hwan JUN ; Deung Ho LEE ; Jung Hwan BANG
Korean Journal of Otolaryngology - Head and Neck Surgery 2006;49(11):1104-1108
Keloids are fibrous overgrowth resulting from abnormal wound healing processes at the site of cutaneous injury. It extends beyond the confines of the original wound, begins later after injury, and does not regress with time contrary to hypertrophic scar. The gold standard has not been established in the treatment of keloids, yet. Excision of keloid alone showed a high rate of recurrence (45-100%). Recently, we have experienced two keloidal masses in the auricle (one on helix, the other on lobule), which were treated with surgery and adjuvant steroid injection. We developed an anteriorly-based skin flap from the skin covering of the keloidal mass and used it for several reasons. We also used triamcinolone injection after the surgery. In this paper, we are presenting the result of these cases with a review of literature.
Cicatrix, Hypertrophic
;
Keloid*
;
Recurrence
;
Skin
;
Triamcinolone
;
Wound Healing
;
Wounds and Injuries
10.Two Cases of Mumps Involving Only Submandibular Glands.
Bung Yoon CHOI ; Deung Ho LEE ; Sung Hwan JUN ; Jung Hwan BANG
Korean Journal of Otolaryngology - Head and Neck Surgery 2006;49(8):862-865
Mumps virus infections usually involve the parotid glands. It usually spreads from a human reservoir by airborne droplet of infected saliva. Therefore, early proper diagnosis and isolation of patients can help to inhibit dissemination of the disease. Diagnosis of mumps virus infection is mainly dependent on clinical inspection, palpation of the parotid and laboratory tests, because most mumps virus infections involve the parotid gland. Isolated submandibular gland involvement in mumps is rare and presents diagnostic challenge. We report unusual consecutive cases of mumps virus infections in two patients who were brothers, for whom bilateral submandibular glands were found to be involved paring parotid glands. These cases instruct us not to exclude mumps virus infection even in isolated uni/bilateral submandibular gland swelling.
Diagnosis
;
Humans
;
Mumps virus
;
Mumps*
;
Palpation
;
Parotid Gland
;
Saliva
;
Siblings
;
Submandibular Gland*