1.A Study on the Electrophoretic Analysis of the Joint Fluid Proteins in Rheumatoid Arthritis
Chong Il YOO ; Jung Yoon LEE ; Choon Taek OH
The Journal of the Korean Orthopaedic Association 1978;13(2):153-159
In several pathologic conditions of the joints, it is rather frequent to find a swollen joint. The authors performed an analysis of the joint fluid proteins from 20 cases of rheumatoid arthrit is and 20 normal Kore an adults with the object of evaluating the significance of it s clinical application. The study was done with Beckman Model R System, Durrum type cell, and scanned with Model RB Analytrol. Scheicher and Schuell 2043-A paper was used with diethyl barbituric acid-sodium diethyl barbituratebuffer, pH 8.6, ionic strenght 0.075 and stianed with 0.1% bromphenol blue. The results obtained were as follows: 1) The amount of total protein was significantly increased with average of 4.80 + 1.249gm% in comparison with 2.34 + 0.553gm% in normal group. 2) Albumin fraction showed the average of 41.86 + 6.219% in comparison with 64.85 + 5.288% in normal group. 3) Alpha 2 globulin fraction disclosed the average of 10.19 + 3.379% in comparison with 4.24 + 1.158% in normal group, which was significantly increased one. 4) Gammaglobulin fraction was also significantly elevated with the average of 21.51 + 8.942% in comparison with 11.70 + 1.923% in normal group. 5) There was noted a decreased A/G ratio, the average of 0.74 + 0.196, in comparison with 1.911 + 0.430 in normal group.
Adult
;
Arthritis, Rheumatoid
;
Bromphenol Blue
;
Humans
;
Hydrogen-Ion Concentration
;
Joints
2.Clinical Efficacy of High-risk HPV DNA Test Using Hybrid Capture System in Cervical Epithelial Cells.
Choon Mo YANG ; Ju Taek KWEON ; In Seck JANG ; Jang Cheol CHO ; Chul UM ; Kwan Sik KIM ; Byung Chan OH ; Sung Nam CHO
Korean Journal of Gynecologic Oncology and Colposcopy 2000;11(2):148-156
Human papillomavirus(HPV) has implicated in the development of cervical cancer. Several studies has suggested a strong correlation between HPV 16, 18 and cervical intraepithelial neoplasia(CIN). For detecting and typing HPV DNA in cervical tissues, recently the chemiluminescent molecular hybridization assay method has been widely used. This study was performed to determine the usefulness of hybrid capture assay for detecting high-risk HPV in cervical epithelial cells, and to compare the correlation among cervical cytology, biopsy finding and HPV infection, and to determine whether the addition of the hybrid capture assay to cytologic test would improve the ability to identify significant lesions. This study included 267 patients who visited the colposcopic clinic of the department of obstetrics and gynecology, Chonbuk University Hospital from May, 1997 to October 199S. Pap smears hybrid capture assays, and colposcopically directed biopsy were performed concurrently on al1 women. The results obtained were as follow; l. Using hybrid capture assay, the detection rate of high-risk HPV of all patients was 37.1%(99/267). There was no statistical significance in the detection rate of HPV between the age groups. 2. The false negative rate of Pap Smear was 53.3% and showed significant discrepancies between the cytologic and histologic diagnosis. 3. According to the cytologic diagnosis, the detection rates of high-risk HPV were 7.1% in normal, 25.3% in ASCUS or LSIL, and 61.6% in HSIL. In each cytologic group, the patients who had positive results for high-risk HPV showed higher incidence rate of high grade lesions than those with negative results(P<0.05). 4. According to the histologic diagnosis, the detection rates of high-risk HPV were 0.1% in normal, 11.1% in CIN I, and 72.7% in CIN II or CIN III. In each histologic group, the patients who had positive results for high-risk HPV showed higher incidence rate of high grade lesions than those with negative results(P<0.05). 5. According to the comparison of histologic diagnosis between positive and negative results of high-risk HPV test due to each cytology, there was no statistical significance in the incidence rate of cervical neoplasia, Above results suggest that high-risk HPV test using hybrid capture assay may be a useful method in supplement the pitfalls of cervical cytology. This test might also have prognostic value in the management of patients with CIN.
Biopsy
;
Diagnosis
;
DNA
;
Epithelial Cells*
;
Female
;
Gynecology
;
Human papillomavirus 16
;
Human Papillomavirus DNA Tests*
;
Humans
;
Incidence
;
Jeollabuk-do
;
Obstetrics
;
Uterine Cervical Neoplasms
3.Modification effects of recombinant human tumor necrosis factor and recombinant human interferon-gamma intrinsic and acquired resistance to cisplatin in human stomach and lung cancer cell lines.
Weon Seon HONG ; Chang Min KIM ; Choon Taek LEE ; You Cheoul KIM ; Young Kyuck IM ; Jhin Oh LEE ; Tae Woong KANG
Korean Journal of Immunology 1992;14(1):25-33
No abstract available.
Cell Line*
;
Cisplatin*
;
Humans*
;
Interferon-gamma*
;
Lung Neoplasms*
;
Lung*
;
Stomach*
;
Tumor Necrosis Factor-alpha*
4.Modification effects of recombinant human tumor necrosis factor and recombinant human interferon-gamma intrinsic and acquired resistance to cisplatin in human stomach and lung cancer cell lines.
Weon Seon HONG ; Chang Min KIM ; Choon Taek LEE ; You Cheoul KIM ; Young Kyuck IM ; Jhin Oh LEE ; Tae Woong KANG
Korean Journal of Immunology 1992;14(1):25-33
No abstract available.
Cell Line*
;
Cisplatin*
;
Humans*
;
Interferon-gamma*
;
Lung Neoplasms*
;
Lung*
;
Stomach*
;
Tumor Necrosis Factor-alpha*
5.TIMP-2 gene transfer via adenovirus inhibits the invasion of lung cancer cell.
Yeon Mok OH ; Jae Ho LEE ; Chul Gyu YOO ; Hee Soon CHUNG ; Young Whan KIM ; Sung Koo HAN ; Young Soo SHIM ; Choon Taek LEE
Tuberculosis and Respiratory Diseases 2000;49(2):189-197
BACKGROUND: Tissue inhibitor of metalloproteinase is a natural inhibitor that counteracts proteolytic enzymes essential to the invasion of cancer cell. Whether or not TIMP-2 gene transfer via adenovirus could inhibit the invasion of lung cancer cell in vitro was evaluated for the future purpose of gene therapy against lung cancer. METHODS: Recombinant adenvirus-TIMP-2(Ad-TIMP-2) was generated by homologeous recombination after pACCMV-TIMP-2 and pJM17 were cotransfected into 293 cell by standard calcium phosphate coprecipitate mathod. Calu-6, one of the most invasive lung cancer cells, was transduced with Ad-TIMP-2 or Ad-β-gal. An-chorage-independent growth and invasiveness were assessed by soft agar clonogenicity assay and invasion assay using two-chamber, well divided by matrigel. RESULTS: Ad-TIMP-2 transduced calu-6 cells produced bilolgically active TIMP-2 more than 50 times more than parental calu-6. TIMP-2 gene transfer did not suppress the in vitro tumorgenicity. However, two chamber well assay revealed that Ad-TIMP-2 transduction reduced the invasiveness of calu-6 efficiently (12% compared with parental cell) even at low 10moi. CONCLUSION: Even though TIMP-2 gene transfer did not inhibit in vitr tumorigenicity, it did inhibit invasion of lung cancer cell in vitro. The inhibition of invasion by Ad-TIMP-2 may be a useful strategy for the treatment of lung cancer.
Adenoviridae*
;
Agar
;
Calcium
;
Genetic Therapy
;
Humans
;
Lung Neoplasms*
;
Lung*
;
Parents
;
Peptide Hydrolases
;
Recombination, Genetic
;
Tissue Inhibitor of Metalloproteinase-2*
6.Overcome of acquired resistance to cisplatin by buthionine sulfoximine in human stomach and lung cancer cell lines.
Won Sun HONG ; Chang Min KIM ; Choon Taek LEE ; Yoo Chul KIM ; Young Hyuk LIM ; Jin Oh LEE ; Tae Woong KANG ; Suk Il HONG
Journal of the Korean Cancer Association 1993;25(1):1-8
No abstract available.
Buthionine Sulfoximine*
;
Cell Line*
;
Cisplatin*
;
Humans*
;
Lung Neoplasms*
;
Lung*
;
Stomach*
7.A Phase II Trial of Combination Chemotherapy with Cisplatin & Etoposide in Small Cell Lung Cancer.
Eun Mee CHEON ; Hyung Gun KIM ; Tae Young SON ; Young Jin YUH ; Sang Goo LEE ; Choon Taek LEE ; Young Hwan KIM ; Jhin Oh LEE ; Tae Woong KANG
Tuberculosis and Respiratory Diseases 1994;41(6):632-643
BACKGROUND: The objective responses of cisplatin and etoposide (PVP) combination chemotherapy as second-line therapy following CAV was high (40~50%) and, in several reports, PVP yields survival results that are at least as good as those obtained with cyclophosphamide or doxorubicin-based regimens and with less host-related toxicity in chemotherapy-naive patients. We conducted a phase II study to evaluate the effect of a combination of cisplatin and etoposide as a first-line therapy in patients with small cell lung cancer. METHODS: Sixty-one previously untreated small cell lung cancer patients with measurable lesion(s) received cisplatin(30 mg/m2 IV, day 1~3) and etoposide(100 mg/m2 IV, day 1~3). In patients with limited disease, after completion of 6 cycles of PVP chemotherapy, chest and prophylatic brain irradiation was performed in case of complete responder, chest irradiation only in partial responder. RESULTS: 1) Of 55 evaluable patients, 13(24%) had a complete response and 29(53%) had a partial response. 2) The median survival time was 55.8 weeks for all patients(N=55), 61.1 weeks for limited disease(N=31), 51.3 weeks for extensive disease(N=24). 3) The response duration was 29.1 weeks for responders(N=42). 4) There was no significant prognostic factors iufluencing response rates. 5) The toxicity was tolerable and there was no treatment-related deaths. CONCLUSION: The PVP combination chemotherapy as a first-line therapy was effective and well-tolerated in patients with small cell lung cancer.
Brain
;
Cisplatin*
;
Cyclophosphamide
;
Drug Therapy
;
Drug Therapy, Combination*
;
Etoposide*
;
Humans
;
Small Cell Lung Carcinoma*
;
Thorax
8.Double Bronchial Lesions Detected by Bronchoscopic Examination.
Chang Hee LEE ; Jong Kil YOON ; Young Im KWAK ; Hyun Kag KIM ; Choon Taek LEE ; Jhin Oh LEE ; Tae Woong KANG
Tuberculosis and Respiratory Diseases 1994;41(3):277-288
OBJECTIVES: Multiple lung cancers and/or precancerous lesions can be developed because many bronchi are exposed to carcinogens simultaneously according to the concept of 'Field Cancerization'. We had performed a careful bronchoscopic examination and analysed the patients of double bronchial lesions who received the separate pathologic evaluation. METHODS: We studied 21 patients of double bronchial lesions among 1855 patients of bronchoscopic examination from April 1990 to December 1993 in Korea Cancer Center Hospital. We classified the patients into three groups(double malignancies of different histology, double malignancies of same histology, and combination of malignant and benign lesions) and analysed the histologic type, location, radiologic findings, and clinical parameters. RESULTS: Among 21 patients, six patients had double malignancies of different histology, eight had double malignancies of same histology, and seven had combination of malignant and benign lesions. Out of 14 double malignant cases, 11 cases are considered as synchronous multiple primary lung cancers. Combination of squamous cell carcinomas was found in 5 cases, combination of small cell carcinoma and squamous cell carcinoma was found in 4 cases. Combination of adenocarcinoma and squamous cell carcinoma and combination of squamous cell carcinoma and poorly differentiated carcinoma were found in 1 case respectively. All patients of synchronous multiple primary lung cancers were male and had long smoking history(average 40 pack years). Among 21 cases of double bronchial lesions, only one lesion could be detected by prebronchoscopic radiologic examination including chest CT in 15 cases. CONCLUSIONS: The presence of double bronchial lesions including multiple primary lung cancers and the limitation of radiologic examination to detect early bronchial lesions encourage us to examine the whole bronchi carefully and to perform pathologic evaluations.
Adenocarcinoma
;
Bronchi
;
Bronchoscopy
;
Carcinogens
;
Carcinoma, Small Cell
;
Carcinoma, Squamous Cell
;
Humans
;
Korea
;
Lung Neoplasms
;
Male
;
Smoke
;
Smoking
;
Tomography, X-Ray Computed
9.Antitumor activity of adriamycin and the analogue, THP-adriamycin and epirubicin, against human tumor cell lines.
Weon Seon HONG ; Chang Min KIM ; Myung Shick LEE ; Yoon Koo KANG ; Choon Taek LEE ; You Cheoul KIM ; Jhin Oh LEE ; Tae Woong KANG
Journal of the Korean Cancer Association 1991;23(2):259-265
No abstract available.
Cell Line, Tumor*
;
Doxorubicin*
;
Epirubicin*
;
Humans*
10.Loss of the retinoblastoma gene in non-small cell lung cancer.
Choon Taek LEE ; Chang Min KIM ; Jae Ill ZO ; Young Mag SHIM ; Weon Seon HONG ; Jhin Oh LEE ; Tae Woong KANG
Tuberculosis and Respiratory Diseases 1993;40(2):98-103
No abstract available.
Carcinoma, Non-Small-Cell Lung*
;
Genes, Retinoblastoma*
;
Retinoblastoma*