1.Restoration of Wild-Type p53 by Adenovirus-Mediated Gene Transfer May Enhance the Therapeutic Efficacy of Chemotherapy in Human Ovarian Cancer Cells.
Tae Eung KIM ; Yong Wook KIM ; Heung Ki KIM ; Duck Yeong RO ; Jin Woo KIM ; Jae Keun JUNG ; Dirk G KIEBACK ; Sung Eun NAMKOONG
Korean Journal of Gynecologic Oncology and Colposcopy 2001;12(1):23-30
OBJECTIVE: In an effort to develop a more effective therapeutic strategy for ovarian cancer, we examined whether the restoration of the wild-type p53 gene can enhance the therapeutic effect of chemotherapy. METHODS: In this study, Ov-ca-2774 cells, which are known to have p53 point mutation and cisplatin-resistance, were selected and currently used chemotherapeutic agents including cisplatin, carboplatin, paclitaxel, etoposide, topotecan, and doxorubicin were added concurrently or sequentially with adenovirus-mediated p53 gene transfer (Ad5CMV-p53). RESULTS: Transfer of the wild-type p53 cDNA gene into Ov-ca-2774 cells showed 55% cell killing in vitro at a multiplicity of infection (MOI) of 40. Although the combination of carboplatin or paclitaxel followed by p53 gene transfer with an interval of 48 h manifested no enhanced cell killing compared with cells infected with Ad5CMV-p53 alone, the other combinations of chemotherapeutic agents and p53 gene transfer resulted in 15% to 37% further cell killing (P<0.05). Furthermore, p53 gene transfer followed by doxorubicin with an interval of 24 h and concurrent combination of etoposide with p53 gene transfer showed significant difference in cell killing in contrast to the other combination strategies in the respective chemotherapeutic agent exposure groups (P<0.05). CONCLUSION: Our data demonstrated that combination of p53 gene transfer and chemotherapeutic agents had higher cell killing than either of these two modality alone.
Carboplatin
;
Cisplatin
;
DNA, Complementary
;
Doxorubicin
;
Drug Therapy*
;
Etoposide
;
Genes, p53
;
Homicide
;
Humans*
;
Ovarian Neoplasms*
;
Paclitaxel
;
Point Mutation
;
Topotecan
2.A Case of Eccrine Spiradenoma in a Patient with Neurofibromatosis.
Jong Wook PARK ; Sun NAMKOONG ; Jimin CHUNG ; Kyung Eun JUNG ; Sang A OH ; Yong Woo CINN ; Myung Hwa KIM
Annals of Dermatology 2010;22(2):191-193
Neurofibromatosis is a systemic hereditary disorder with varied manifestations in bone, soft tissue, the nervous system and skin. Cutaneous manifestations of neurofibromatosis are characterized by cafe-au-lait macules, multiple neurofibromas, Lisch nodules and intertriginous freckling. Some benign or malignant tumors such as juvenile xanthogranuloma, pheochromocytoma, and malignant melanoma can accompany neurofibromatosis. But, in the English literature, no case of eccrine spiradenoma associated with neurofibromatosis has been reported. Eccrine spiradenoma is a benign uncommon neoplasm of skin adnexa. It presents as a painful, slow-growing and solitary nodule on the head or upper trunk. Here, we report a rare case of eccrine spiradenoma in a patient with neurofibromatosis.
Head
;
Humans
;
Melanoma
;
Nervous System
;
Neurofibromatoses
;
Neurofibromatosis 1
;
Pheochromocytoma
;
Skin
;
Xanthogranuloma, Juvenile
3.Rehabilitation of Advanced Cancer Patients in Palliative Care Unit
Chang Hyun LEE ; Jong Kyu KIM ; Hyun Jung JUN ; Duk Joo LEE ; Wook NAMKOONG ; Jae Ho OH
Annals of Rehabilitation Medicine 2018;42(1):166-174
OBJECTIVE: To evaluate the compliance and satisfaction of rehabilitation recommendations for advanced cancer patients hospitalized in the palliative care unit. METHODS: Advanced cancer patients admitted to a hospice palliative care unit were recruited. Patients with advanced cancer and a life expectancy of less than 6 months, as assumed by the oncologist were included. Patients who were expected to die within 3 days were excluded. ECOG and Karnofsky performance scales, function ambulatory category, level of ambulation, and survival days were evaluated under the perspective of comprehensive rehabilitation. Problem-based rehabilitations were provided categorized as physical therapy at the gym, bedside physical therapy, physical modalities, medications and pain intervention. Investigation of compliance for each category was completed. Patient satisfaction was surveyed using a questionnaire. RESULTS: Forty-five patients were recruited and received evaluations for rehabilitation perspective. The subjects were reported to have gait-related difficulties (71.1%), pain (68.9%), poor medical conditions (68.9%), bladder or bowel problems (44.4%), dysphagias (11.1%), mental status issues (11.1%), edemas (11.1%), spasticity (2.2%), and pressure sores (2.2%). In the t-test, patients with good compliance for GymPT showed higher survival days (p < 0.05). In the satisfaction survey, patients with performance scales showed a greater satisfaction in Spearman's correlation analysis (p < 0.05). CONCLUSION: Advanced cancer patients admitted to the hospice palliative care unit have many rehabilitation needs. Patients with a longer survival time showed better compliance for GymPT. Patients with a better performance scale showed a higher satisfaction. Comprehensive rehabilitation may be needed to advanced cancer patients in the hospice palliative care unit.
Compliance
;
Deglutition Disorders
;
Edema
;
Hospice Care
;
Hospices
;
Humans
;
Life Expectancy
;
Muscle Spasticity
;
Palliative Care
;
Patient Satisfaction
;
Pressure Ulcer
;
Rehabilitation
;
Urinary Bladder
;
Walking
;
Weights and Measures
4.Use of Haloperidol and Lorazepam for Intractable Symptoms in the Hospice Palliative Care Unit
Wook NAMKOONG ; Jungmin KIM ; Hyunseon EO ; Eunjin CHUNG ; Junga KIM ; Soohyoung LEE ; Kihyon PARK
Korean Journal of Family Practice 2019;9(1):10-16
BACKGROUND: Terminally ill cancer patients suffer from refractory symptoms, and the last option of treatment is to consider sedatives. However, due to concerns that sedation may shorten survival time, some people prefer not to take sedatives. The purpose of this study was to investigate the effects of sedative administration on survival time among terminally ill cancer patients.METHODS: Two hundreds and thirty-seven patients who were hospitalized to the hospice care unit of public hospitals in Seoul from January, 2015 to March, 2016 were analyzed retrospectively. The univariate and multivariate Cox's proportional hazard regression model was used to determine independent factors related to survival time.RESULTS: The usage of sedation was necessary because the incidence of insomnia was 61.4% in the lorazepam only group, and the incidence of delirium was highest in the haloperidol group and the haloperidol with lorazepam group. Interestingly, multivariate analysis showed that male (HR, 1.766; P < 0.001), decreased consciousness (HR, 1.803; P=0.003), anorexia (HR, 1.506; P=0.012), resting dyspnea (HR, 1.757; P < 0.001), elevated serum bilirubin (HR, 1.657; P=0.001), and the haloperidol with lorazepam group (HR, 0.535, P < 0.001) were each significantly associated with survival time. Furthermore, patients in the haloperidol with lorazepam group survived longer than patients with no such medications.CONCLUSION: There is no evidence that treatment with sedative medication shortens the survival time of patients with terminally ill cancer with refractory symptoms.
Anorexia
;
Bilirubin
;
Consciousness
;
Delirium
;
Dyspnea
;
Haloperidol
;
Hospice Care
;
Hospices
;
Hospitals, Public
;
Humans
;
Hypnotics and Sedatives
;
Incidence
;
Lorazepam
;
Male
;
Multivariate Analysis
;
Palliative Care
;
Retrospective Studies
;
Seoul
;
Sleep Initiation and Maintenance Disorders
;
Terminally Ill
5.A Case of Gardner's Syndrome Associated with Desmoid Tumor.
Jimin CHUNG ; Sun NAMKOONG ; Kyoung Eun JUNG ; Jong Wook PARK ; Byung Cheol PARK ; Yong Woo CINN ; Myung Hwa KIM
Annals of Dermatology 2010;22(4):418-421
Desmoid tumors are uncommon benign neoplasm of the fibroblasts. They occur rarely in the general population, but they are comparatively common in patients with familial polyposis coli with or without other elements of Gardner's syndrome. Herein, we report a 16-year-old woman with Gardner's syndrome complicated by desmoid tumors on the right subscapular area.
Adenomatous Polyposis Coli
;
Adolescent
;
Female
;
Fibroblasts
;
Fibromatosis, Aggressive
;
Gardner Syndrome
;
Humans
6.The Value of HPV detection as a Follow-up Modality after Treatment of Cervical Precanceous Lesions.
Young Seok LEE ; Chan Joo KIM ; Tae Wook BAE ; Song Kwon CHOI ; Min Kyung SONG ; Tae Chul PARK ; Jong Sup PARK ; Sung Eun NAMKOONG
Korean Journal of Gynecologic Oncology and Colposcopy 2001;12(3):195-202
OBJECTIVES: After LEEP conization of cervical precancerous lesions, cytologic follow-up and colposcopy is frequently unsatisfactory. This study was performed to investigate the relationship between the presence of human papillomavirus (HPV) and abnormal follow-up results. METHODS: Between March 1995 and Feburary 1999, 98 patients treated by LEEP for cervical dysplasia and CIS were included. All patient had initially done HPV testing by Hybrid Capture System (Digene Co., U.S.A.). Patients were followed up with PAP, colposcopy and HPV test. RESULTS: After mean follow-up 10.9-month follow-up, 9 patients (9.2%) had the abnormal cytology (>ASCUS). After treatment, there were 2 abnormal cytologic follow-up cases (13.3%) in the groups of koilocytosis and CIN I in initial tissue pathology, 7 abnormal follow-up cases (8.4%) in groups of CIN II/III and CIS. There was no significant difference between the recurrence rates of these two group (P=0.27). The presence of high-risk HPV DNA after LEEP was done in 26 cases. Of the HPV-positive follow-up cases, 4 patients (50%) had abnormal cytologic results. But none had abnormal cytology in HPV-negative patients. CONCLUSION: Participants with positive follow-up HPV test have a higher recurrence rate than those with negative HPV test. Our study suggests the value of supplementary HPV DNA testing during follow-up of patients treated for cervical precancerous lesions.
Colposcopy
;
Conization
;
DNA
;
Follow-Up Studies*
;
Human Papillomavirus DNA Tests
;
Humans
;
Pathology
;
Recurrence
7.Clinical Study of Borderline Ovarian Malignancy.
Sang Hee LEE ; Tae Wook BAE ; No Jun LEE ; Chan Joo KIM ; Tae Chul PARK ; Joon Mo LEE ; Sung Eun NAMKOONG
Korean Journal of Obstetrics and Gynecology 2002;45(3):470-474
OBJECTIVES: The purpose of this study is to investigate the clinicopathologic characteristics and the risk factors affecting the recurrence in patients with borderline ovarian malignancy. METHODS: From January 1996 to January 2001, 37 patients with borderline tumors of the ovaries were retrospectively investigated in the Department of Obstetrics and Gynecology, Catholic University, Kangnam and Uijongbu St. Mary's Hospital. Several clinicopathologic factors including DNA ploicly was analyzed for the prognosis and recurrence. Analysis for the kinds of treatment and recurrence were conducted to test the prognostic significance of several clinicopathologic factors including DNA analysis. RESULTS: Histologically, 27 borderline tumors were serous, 9 were mucinous and 1 was mixed epithelial type. The FIGO stage I was 91.8% (34/37) and stageII was 8.2% (3/37). Mean value of CA125 in mucinous borderline malignancy was significantly higher (162.4 IU/mL) than serous types (52.2 IU/mL) (p<0.05). The patients with elevated CA 125 levels (>35 IU/mL) were 56.3% (9/16) in serous type and 75% (6/8) in mucinous tumors. Ten of 13 cases with DNA flow cytometry showed aneuploidy (76.9%). When considering pathologic types between diploid and aneuploid groups, there were no statistically significant differences. However, the patients with old age (>40) were more likely to be aneuploid (p<0.05). Mean duration of follow-up investigation was 26 months after primary operation. In this period, only one patient with serous borderline tumor stage Ia had recurrence on the contra-lateral ovary at 13-month. CONCLUSION: Data from this study showed that the majority of borderline tumors have good prognosis. And young patients who have not completed childbearing can be safely treated with unilateral salpingo- oophorectomy and omentectomy in stage I diploid tumor. In ovarian bordeline tumors, further studies on DNA ploidy would be needed.
Aneuploidy
;
Diploidy
;
DNA
;
Female
;
Flow Cytometry
;
Follow-Up Studies
;
Gynecology
;
Humans
;
Mucins
;
Obstetrics
;
Ovariectomy
;
Ovary
;
Ploidies
;
Prognosis
;
Recurrence
;
Retrospective Studies
;
Risk Factors
8.Protein kinase C modulates telomerase activity in human cervical cancer cells.
Yong Wook KIM ; Soo Young HUR ; Tae Eung KIM ; Joon Mo LEE ; Sung Eun NAMKOONG ; In Kyung KI ; Jin Woo KIM
Experimental & Molecular Medicine 2001;33(3):156-163
Telomerase, a ribonucleoprotein reverse transcriptase that extends telomeres of eukaryotic chromosomes is repressed in normal somatic cells but is activated during development and neoplasia. The regulation mechanism of telomerase activity in cancer cells is not clearly known. In this report, a possible affect of PKC on telomerase activity was examined using HeLa and CUMC-6 cervical cancer cell lines. Exposure of cells to PKC inhibitor, bisindolylmaleimide I and Go6976, and high levels of PKC activator, 12-O-tetradecanoyl phorbol 13-acetate (TPA) resulted in the inhibition of PKC activity in both cells. Telomerase activities were also inhibited by bisindolyl-maleimide I and Go6976, respectively, in a time-dependent manner. As PKC activity changes in TPA-treated cervical cancer cells, telomerase activities were increased at low dose of TPA and decreased at high dose. The expression levels of human telomerase subunits, human telomerase RNA (hTR) were not influenced by PKC modulating drugs. In contrast, the expression of full-length human telomerase reverse transcriptase (hTERT) was decreased after exposure to bisindolylmaleimide I and Go6976 in a time-dependent manner. hTERT expression was not affected by low dose of TPA. In contrast, high dose of TPA inhibited hTERT expression level. But the expression patterns of beta-deletion transcript of hTERT after 72 h of treatment with PKC inhibitors or high dose of TPA exposure were not discernable as compared with those of full-length hTERT transcripts to PKC modulating drugs. These results suggest that PKC-modulating drugs altered telomerase activities by affecting full-length hTERT expression profile in human cervical cancers.
Alternative Splicing
;
Carbazoles/pharmacology
;
Catalytic Domain
;
Cervix Neoplasms/*enzymology
;
Enzyme Inhibitors/metabolism
;
Female
;
Hela Cells
;
Human
;
Indoles/pharmacology
;
Maleimides/pharmacology
;
Protein Kinase C/antagonists & inhibitors/*metabolism
;
RNA, Messenger/metabolism
;
Support, Non-U.S. Gov't
;
Telomerase/antagonists & inhibitors/genetics/*metabolism
;
Tetradecanoylphorbol Acetate/pharmacology
;
Tumor Cells, Cultured
9.A Case of Primary Hyperparathyroidism in Child Presented with Acute Abdominal Pain.
Wook NAMKOONG ; In Suh PARK ; Bok Ki KIM ; Sin Young PARK ; Soo Ho JEONG ; Sun Ki KIM ; Byong Kwan SON ; Ji Eun LEE
Journal of Korean Society of Pediatric Endocrinology 2008;13(2):198-202
Primary Hyperparathyroidism is the metabolism abnormality of calcium, phosphate, and bone due to the high synthesis of parathyroid hormone, a rare endocrine disease in children. It scarcely occurs in children so that till now it was reported only 4 cases in Korea, especially with abdominal symptoms. We report this case of primary hyperparathyroidism with brief review of literatures.
Abdominal Pain
;
Calcium
;
Child
;
Endocrine System Diseases
;
Humans
;
Hyperparathyroidism, Primary
;
Korea
;
Parathyroid Hormone
;
Parathyroid Neoplasms
10.The Relationship between Wheezing during Methacholine Bronchial Challenge and the Severity of Acute Asthma Exacerbation in Asthmatic Children.
Wook NAMKOONG ; Dong Hyun KIM ; Woo Sik JUNG ; Jong Hoon KWAK ; Dae Hyun LIM ; Jeong Hee KIM ; Byong Kwan SON
Pediatric Allergy and Respiratory Disease 2009;19(1):28-37
PURPOSE:Global Initiatives for Asthma (GINA guideline) 2005 suggests that the pitch and intensity of wheezing as the determinating factor for the severity of asthma exacerbation. However, there have not yet been sufficient data to support the correlation between wheezing and the severity of asthma exacerbation. This study was aimed to estimate the relationship between wheezing threshold and the level of forced expiratory volume in 1 second (FEV1). METHODS:Among 370 pediatric patients who visited Inha University Hospital between May 2005 and June 2006, who underwent the methacholine bronchial challenge tests in order to diagnose asthma, 228 patients with PC20 less than 16 mg/mL were examined. Medical history, physical examination, skin prick test, eosinophil count and total IgE level in peripheral blood, and nasal smear for eosinophil count were performed. RESULTS:Among the 228 patients 127 (55.7%) showed wheezing during the methacholine challenge test. Among the patient with wheezing 82 patients (36%) showed more than 20% fall of FEV1, and the other, 45 patients (19.7%), showed less than 20% FEV1%fall. One hundred one patients (43.3 %) did not show any wheezing until the %fall of FEV1 was below 20%. The geometric mean (range of 1SD) [2.29 (0.86-6.13) mg/mL] of methacholine PC20 of the 127 patients with wheezing was significantly lower than that [4.11 (1.82-9.24) mg/mL] of the 101 patients without wheezing (P<0.001). The geometric mean (range of 1SD) of methacholine PC20 in the 143 patients with positive skin prick test results was 2.57 (0.97-6.81) mg/mL, which was significantly lower than that of the 37 patients with negative results [3.69 (1.57-8.66) mg/mL] (P<0.001). CONCLUSION:We could learn that most wheezing patients showed more than 20% fall of FEV1. Therefore, it is suggested that the asthmatic children with wheezing were regarded and treated as moderate or more severe state
Asthma
;
Bronchial Provocation Tests
;
Child
;
Eosinophils
;
Forced Expiratory Volume
;
Humans
;
Immunoglobulin E
;
Methacholine Chloride
;
Physical Examination
;
Respiratory Sounds
;
Skin