1.Significance of Preoperative Serum CA-125 and TPA Concentrations in Patients with Pelvic Tumors.
Geum Sung AN ; Kyung Taek JANG ; Jae Ho SIM ; jae Gun SUNWOO ; Min Kwan KIM ; Dong Han BAE
Korean Journal of Gynecologic Oncology and Colposcopy 1997;8(2):175-182
We measured serum levels of CA-125 and Tissue polypeptide antigen(TPA) in 135 patients with pelvic tumors(129 benign pelvic tumors and 6 malignant ovarian tumors) preoperatively. Each tumor marker was measured by immunoradiometric assay. Serum CA-125 levels of 35.0U/ml, 65.0U/ml and TPA levels of 80.0U/ml, 100.0U/ml were determined as cut-off values. The results were evaluated by each tumor marker and two tumor markers coincidently. The results were as follows : (continue)
Humans
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Immunoradiometric Assay
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Biomarkers, Tumor
3.The Effect of IkappaBalpha-SR Gene Transfer on the Sensitivity of Human Lung Cancer Cell Lines to Cisplation and Paclitaxel.
Seok Young LEE ; Ja Young SEOL ; Kyung Ho PARK ; Gun Min PARK ; Yong Il HWANG ; Cheol Hyeon KIM ; Seung Hun JANG ; Sung Youn KWON ; Chul Gyu YOO ; Young Whan KIM ; Sung Koo HAN ; Young Soo SHIM ; Choon Taek LEE
Tuberculosis and Respiratory Diseases 2001;51(2):122-134
BACKGROUND: Some chemotherapeutic drugs induce NF-κB activation by degrading the IκBα protein in cancer cells which contributes to anticancer drug resistance. We hypothesized that inhibiting IκBα degradation would block NF-κB activation and result in increased tumor cell mortality in response to chemotherapy. METHODS: The "superrepressor" form of the NF-κB inhibitor was transferred by an adenoviral vector (Ad-IκBα-SR) to the human lung cancer cell lines (NCI H157 and NCI H460). With a MTT assay, the level of sensitization to cisplatin and paclitaxel were measured. To confirm the mechanism, an EMSA and Annexin V assay were performed. RESULTS: EMSA showed that IκBα-SR effectively blocked the NF-κB activation induced by cisplatin. Transduction with Ad-IκBα-SR resulted in an increased sensitivity of the lung cancer cell lines to cisplatin and paclitaxel by a factor of 2~3 in terms of IC50. Annexin-V analysis suggests that this increment in chemosensitivity to cisplatin probably occurs through the induction of apoptosis. CONCLUSION: The blockade of chemotherapeutics induced NF-κB activation by inducing Ad-IκBα-SR, increased apoptosis and increasing the chemosensitivity of the lung cancer cell lines tested, subsequently. Gene transfer of IκBα-SR appears to be a new therapeutic strategy of chemosensitization in lung cancer.
Adenoviridae
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Annexin A5
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Apoptosis
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Cell Line*
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Cisplatin
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Drug Resistance
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Drug Therapy
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Humans*
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Inhibitory Concentration 50
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Lung Neoplasms*
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Lung*
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Mortality
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Paclitaxel*
4.A Case of Autoimmune Pancreatitis Diagnosed by Immunohistochemical Staining of IgG4.
Tae Gun MOON ; Kyu Taek LEE ; Hoi Jin KIM ; June Sang LEE ; Jung Su HA ; Pung KANG ; Jong Kyun LEE ; Jae J KIM ; Jong Chul RHEE ; Kee Taek JANG
Korean Journal of Gastrointestinal Endoscopy 2007;35(3):205-209
Autoimmune pancreatitis is a distinct entity with characteristic morphological, histological and clinical features. Since the first report in 1961, there have been many reports on autoantibodies associated with autoimmune pancreatitis. Lymphoplasmacytic infiltration with fibrosis is the characteristic histological feature of autoimmune pancreatitis. Elevation of immunoglobulin G4 (IgG4), a subtype of IgG, can be seen in autoimmune pancreatitis. A few reports of autoimmune pancreatitis based on immunostaining of IgG4 have been published, but no reports have been published in Korea. We present here the first report of autoimmune pancreatitis, based on an increased serum IgG4 level and plasma cell infiltration that showed IgG4 positivity by immunohistochemical staining of the major papilla.
Autoantibodies
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Fibrosis
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Immunoglobulin G*
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Immunoglobulins
;
Korea
;
Pancreatitis*
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Plasma Cells
5.SRY-positive 78, XY ovotesticular disorder of sex development in a wolf cloned by nuclear transfer.
Jung Taek KANG ; Hyung Jin KIM ; Hyun Ju OH ; So Gun HONG ; Jung Eun PARK ; Min Jung KIM ; Min Kyu KIM ; Goo JANG ; Dae Yong KIM ; Byeong Chun LEE
Journal of Veterinary Science 2012;13(2):211-213
Recently, we reported the three wolves cloning with normal karyotype from somatic cells of endangered male gray wolves (Canis lupus), but one wolf had female external genitalia. In this study, we conducted further clinical, histological, and genetic analyses. This cloned wolf had a normal uterus but developed ovotestis. Through molecular analysis of the SRY gene, a mutation in the coding sequence of SRY gene could be excluded as a cause of intersexuality. This is the first report of a cloned wolf with a 78, XY ovotesticular disorder affecting sexual development characterized by bilateral ovotestes.
Animals
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Cloning, Organism/*veterinary
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Female
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Karyotyping
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Mutation
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Nuclear Transfer Techniques/*veterinary
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Ovotesticular Disorders of Sex Development/pathology/*veterinary
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*Wolves