• 제목/요약/키워드: embryonal carcinoma

검색결과 27건 처리시간 0.03초

소아 기형종의 임상적 분석 (Teratomas in Children)

  • 정풍만;이종인
    • Advances in pediatric surgery
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    • 제5권1호
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    • pp.1-14
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    • 1999
  • Among 60 children with teratoma, forty-three (71.7 percent) were girls and 17 (28.3 percent) boys, Primary sites were sacrococcygeal in 30 patients (50 percent), retroperitoneal in 12 (20 percent), ovarian in 11 (18.3 percent), testicular in 3 (5 percent), and one in each of nasopharyngeal, gastric, hepatic and pancreatic (1.6 percent, respectively). Fifty-five (91.7 percent) teratomas were benign and 5 (8.3 percent) malignant. Malignant teratomas W8,re detected only in the sacrococcygeal region (16.7 percent). Age greater than 2 mouths at diagnosis, presence of urinary or colonic obstructive symptoms, multiple masses and elevated serum alpha-fetoprotein were indicators of malignancy in the sacrococcygeal region. Tumor size, presence of calcification, and gross apperance (cystic or solid) did not correlate with malignancy. Thirteen (21.7 percent) cases were associated with other anomalies. For the immature teratoma, operative resection without adjuvant chemotherapy was adequate treatment. Three patients with malignant tumors survived, one who received chemotherapy survived 3 years and the others without chemotherapy survived for 5 and 10 years.

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Role of Cannabinoid on Neuronal Differentiation of P19 Cells

  • ;길성호
    • 대한의생명과학회지
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    • 제17권3호
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    • pp.267-271
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    • 2011
  • P19 cells are pluripotent embryonal carcinoma cells and can be differentiated into neuronal cell type by treatment with retinoic acid (RA) and aggregation culture. Cannabinoids are the active components of Cannabis sativa and they have diverse pharmacologic activities, such as pain control, anti-inflammatory effects, neuro-protection effects and tumor regression. Cannabinoids also involved in neuronal proliferation, migration, differentiation and survival in developing brain. Here, we studied the role of cannabinoids on neuronal differentiation of P19 cells. Treatment with cannabinoids increased the neuronal differentiation induced by RA and also promoted transcriptional activity of neurogenin 1, key transcription factor for neuronal differentiation of P19 cells. These results suggest that the cannabinoids can accelerate neuronal differentiation of P19 cells.

Prognosis of Eight Chinese Cases of Primary Vaginal Yolk Sac Tumor with a Review of the Literature

  • Tang, Qiong-Lan;Jiang, Xue-Feng;Yuan, Xiao-Ping;Liu, Yong;Zhang, Lin;Tang, Xiao-Feng;Zhou, Jia-Jia;Li, Hai-Gang;Fang, Jian-Pei;Xue, Lin
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권21호
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    • pp.9395-9404
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    • 2014
  • Background: Primary vaginal yolk sac tumor is a rare malignancy in the pediatric population, and a diagnostic challenge and appropriate initial treatment remains unsolved. The aim of this study was to investigate the clinicopathologic features, treatment and prognosis of this tumor. Materials and Methods: Eight cases of primary vaginal yolk sac tumor were reported with a literature review. Results: There were 4 pure yolk sac tumor cases and four mixed germ cell tumors containing yolk sac tumor element, including two cases with embryonal carcinoma and two cases with embryonal carcinoma and dysgerminoma. Partial vaginectomy was performed in four cases and all patients received chemotherapy. 85 cases in literatures were reviewed and 9 cases were misdiagnosed. Follow-up data was available in 77 cases and 5-year overall survival rate was 87.6%. 5-year survival rate of biopsy with chemotherapy, conservative surgery with chemotherapy and radical surgery with chemotherapy was 91.1%, 100% and 28.6%, respectively (p<0.001). Compared to cases without relapse or metastasis after initial treatment, patients with relapse or metastasis had a shorter overall survival (35.6% vs 96.6%, p<0.001). Conclusions: Mixed germ cell tumor containing yolk sac tumor element was not uncommon and partial vaginectomy may be a good choice for primary vaginal mixed yolk sac tumor type to eradicate local tumor cells and provide complete information for pathological diagnosis and postoperative adjuvant therapy.

연속적 재발성 미성숙 기형종의 외과적 치료 (Surgical Experience of Recurrent Immature Teratoma - Report of a case -)

  • 홍민수
    • Journal of Chest Surgery
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    • 제24권8호
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    • pp.792-796
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    • 1991
  • Immature teratoma can be viewed as intermediate between mature teratoma and embryonal carcinoma. Unlike the mature teratoma, elements of the three perm cell layers are incompletely differentiated and not arranged in organoid fashion In some area, more mature forms of these tissues may also be seen, Although this tumor is clearly malignant, they may not display clear-cut cytologic features of malignancy. The clinical prognosis is poor. We have experienced one case of recurrent immature teratoma. In first operation[1987, April], tumor of anterior mediastinum was removed with wedge resection of ant. segment of RUL % med. segment of RML. In 2nd operation[1990, June], recurrent teratoma of right inner thoracic wall was resected with partial 5th rib resection and wedge resection of lat. segment of middle lobe. Two months later, the 3rd operation[1990, September] was done, which was a removal of mass on thoracic wall near sup, segment of RLL and partial rib resection of 3rd, 4th & 5th. In November 1990, last operation[4th operation] was made. It was enucleation of walnut sized tumor located between medial segment of RML, and 4th. intercostal space, well encapsulated with endothoracic fascia and invaded into lung parenchyme, Adjuvant chemotherapy was done after each operation, but radiotherapy[5000 Rad] was done only after 1st operation. There was no evidence of recurrence after last operation. The patient is well-being still now.

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원발성 종격동 비정상피종성 생식세포종 3예 (Three cases of primary mediastinal Nonseminomatous germ cell tumors)

  • 이순일;용석중;송광선;신계철;양경무;조미연;임형래;유광하;조화상;유종길;송종오
    • Tuberculosis and Respiratory Diseases
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    • 제43권6호
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    • pp.1008-1018
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    • 1996
  • 저자들은 젊은 연령의 성인 남자들에서 종격동에 발생한 원발성 종격동 비정상피종성 생식세포종 3예를 수술적 제거 및 화학요법을 통해 치료하던 중 암표식인자의 의미있는 감소와 종양 크기의 감소를 얻었으나 종양 재발에 대한 보조 화학 요법후 합병증이 발생한 경험을 하였기에 이를 보고하는 바이다.

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해양심층수 및 다시마 분말을 첨가하여 제조한 간장의 생리활성 효과 (Biological Activities of Soybean Sauce (Kanjang) Supplemented with Deep Sea Water and Sea Tangle)

  • 함승시;김수현;유수정;오현택;최현진;정미자
    • 한국식품저장유통학회지
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    • 제15권2호
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    • pp.274-279
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    • 2008
  • 해양심층수 간장 및 일반간장을 제조하여 항돌연변이원성과 세포독성을 측정하였으며 sarcoma-180 cell을 이용하여 in vivo에서 항암효과를 살펴보았다. S. typhimurium TA98과TA100 균주를 이용한 실험에서 모든 시료에서 돌연변이원성이 없었으며, 항돌연변이원성 실험에서는 직접변이원인 MNNG($0.4{\mu}g$/plate)의 경우 TA100 균주에서 해양심층수간장의 시료농도 $200{\mu}g$/plate에서 90.9%의 높은 억제효과를 나타내었으며 4NQO($0.15{\mu}g$/plate)에 대해서는 같은 시료농도에서 62.0%의 억제효과를 나타내었다. 그리고 4NQO의 경우 TA98 균주에 대해서 해양심층수 간장은 61.7%의 억제효과를 나타내었으며 모든 시료는 농도 의존적으로 억제하는 것으로 나타났다. 세포독성 효과를 알아보기 위하여 HeLa, Hep3B, AGS, A549와 MCF-7을 사용하였다. 각 시료 추출물의 암세포 성장효과를 조사한 결과, 해양심층수 간장이 1 mg/mL의 농도에서 각각 69.4%, 70.5%, 55.6%, 82.1% 및 73.2%의 억제율을 나타내었다. 그리고 해양심층수 간장은 고형암 성장 억제 실험에서 대조군에 비해서 40.9%의 고형암 성장 억제효과를 나타내었다.

Overexpression of SOX15 Inhibits Proliferation of NT2/D1 Cells Derived from a Testicular Embryonal Cell Carcinoma

  • Yan, Hong-Tao;Shinka, Toshikatsu;Sato, Youichi;Yang, Xin-Jun;Chen, Gang;Sakamoto, Kozue;Kinoshita, Keigo;Aburatani, Hiroyuki;Nakahori, Yutaka
    • Molecules and Cells
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    • 제24권3호
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    • pp.323-328
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    • 2007
  • SOX (Sry-related HMG box) family proteins, which have an evolutionarily conserved DNA binding domain, have crucial roles in cell differentiation. However, their target genes remain enigmatic. Some members of the SOX family may have roles in regulation of cell proliferation. We established stable NT2/D1 cell lines overexpressing SOX15 (SOX15-NT2/D1), and a modified 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay showed that the SOX15-NT2/D1 cells exhibited significantly slower growth than the controls. Flow cytometry analysis revealed that an increased fraction of the SOX15-NT2/D1 cells were in G1-G0. In addition, a microarray analysis identified 26 genes that were up-regulated in the SOX15-NT2/D1 cells, but none that were down-regulated genes. Among the up-regulated genes, IGFBP5, S100A4, ID2, FABP5, MTSS1, PDCD4 have been shown to be related to cell proliferation and/or the cell cycle.

대구지역 고환 종양에 관한 병리 조직학적 연구 (Histopathological Studies on Tumors of the Testis in the Taegu Area)

  • 홍석재;이태숙;최원희
    • Journal of Yeungnam Medical Science
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    • 제4권2호
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    • pp.149-154
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    • 1987
  • 대구지역의 고환종양에 대한 병리조직학적 연구의 목적으로 고환종양으로 확진된 11예의 조직학적 유형과 연령분포, 주소, 병력기간 및 치료에 대한 결과는 다음과 같다. 1. 고환 적출 표본 11예중 생식세포종양이 10예(90.9%)로 대부분을 차지하였으며 그중 정상피종 5례(45.5%), 태생암 3예(27.2%)의 순서였다. 2. 연령분표는 20~39세에서 6예(54.5%)로 가장 많이 발생하였으며 다음이 50~59세 및 0~9세의 2례(18.1%)씩이었다. 3. 부위별로는 우측이 6예(54.5%)로 더 많이 발생하였으며 병력기간은 6예(54.5%)에서 6개월미만으로 짧았다. 전예에서 서혜부 고환 적출술을 시행했으며 그중 4례에서 화학요법 및 방사선 치료의 후속치료를 하였다. 총 11예중 2례(18.2%)에서 소임파설 전이가 있었다.

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종격동에 발생한 혼합생식세포종양 1예 (A Case of Mixed Germ Cell Tumor of the Mediastinum)

  • 조욱;한민수;김길동;김성호;김준형;이양덕;조용선
    • Tuberculosis and Respiratory Diseases
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    • 제58권2호
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    • pp.184-187
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    • 2005
  • 종격동에 발생하는 생식세포종양에서 미성숙 기형종과 정상피종이 혼합된 경우는 매우 드물며 예후는 좋지 않은 것으로 알려져 있다. 저자들은 객혈을 주소로 내원한 환자에서 수술로 확진한 미성숙 기형종과 장상피종이 혼합된 생식세포 종양의 1예를 경험하였기에 보고하는 바이다.