• The Journal of the Korean dental association
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• v.22 no.10 s.185
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• pp.887-900
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• 1984

• 대한두경부종양학회:학술대회논문집
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• 1996.11a
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• pp.251-251
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• 1996

• 대한두경부종양학회:학술대회논문집
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• 1999.12a
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• pp.274.2-274.2
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• 1999

• The Journal of the Korean dental association
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• v.11 no.7
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• pp.475-481
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• 1973

• The Journal of the Korean dental association
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• v.40 no.7 s.398
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• pp.507-511
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• 2002

• Journal of Food Hygiene and Safety
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• v.29 no.3
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• pp.248-251
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• 2014

Dryopteris crassirhizoma is one of the naturally occurring substance wood ferns and is known for having anti-inflammatory, antiviral and anthelmintic activities. However, there is less report about its anticancer effect in human cancer cell lines. In the present study, the effect of methanol extract of dryopteris crassirhizoma (MEDC) on apoptosis in human oral cancer cell lines (MC3 and HN22 cells) was investigated. MEDC inhibited cell viability and induced apoptosis. MEDC significantly increased Bak and truncated Bid proteins in MC3 cells and elevated only truncated Bid compared to the control while other Bcl-2 family proteins were not altered. MEDC has anticancer activity by inducing apoptotic cell death through the regulation of either Bak or Bid. These findings suggest that its extract possibly may be used for treating oral cancer.

• The Journal of Korean Academy of Prosthodontics
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• v.53 no.1
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• pp.74-80
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• 2015

When oral cancer is occured, one may experience problems such as lip defect, necrosis of periodontal tissue and cervical caries caused by radiotherapy. According to ADI (Association of dental implantology), recent radiotherapy on jaw bone could be a relative contraindication of implant treatment. Due to this controversy, in most cases, treatment is done with removable dentures rather than implants. Especially, lip defect caused by an oral cancer operation have a serious repercussion on the retention of the denture. In this case report, patient with upper lip cancer had undergone resection primarily and secondary radiotherapy was done periodically. As a result, upper teeth of patient were extracted gradually and lower teeth showed very poor periodontal status. Therefore, Polident$^{(R)}$ denture adhesive cream (GlaxoSmithKline, London, England) was applied on maxillary complete denture to overcome reduced retention due to the lip defect and double crown RPD with friction pin was applied on the mandible successfully for two years.

• The Journal of the Korean dental association
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• v.40 no.9 s.400
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• pp.667-679
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• 2002

일반 특수신체 정신장애자나 연소연로자의 병약 문제에 대해서는 일단 복지차원으로 국가가 배려하고 있으나 치과분야에서의 절대 무치악자, 선천성 기형 구강암 수술 후의 다량의 조직결손 등의 특수질환자에 대해서는 조명되지 않고 간과돼 온 것이 사실이다. 기술적인 면에서나 경제적인 면에서 일반적인 방법으로는 치료가 불가능한 치과 특수장애자를 위한 특수진료원을 국가가 정책적으로 설립하는 것이 당연하다는 것을 객관화할 수 있는 근거를 본 연구에서는 제시하고 있다. 치협의 학술국 연구사업으로서 국립구강악안면특수장애 수복진료원 설립을 위한 기초자료 조사를 완료하여 지난 4월 보고한 내용을 게재한다.

• Korean Journal of Clinical Laboratory Science
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• v.50 no.4
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• pp.462-469
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• 2018

HSP90 regulates various proteins involved in differentiation and cell survival. Levels of HSP90 tend to increase during development of squamous cell carcinoma in the head and neck including the mouth. Thus, many studies have been conducted to treat these cancers through suppression of HSP90. This study investigated the effect of two HSP90 inhibitors, geldanamycin and 17-AAG, on the proliferation, apoptosis, and invasion of human oral squamous cell carcinoma cells. Cell survival and cell cycle analyses, as well as western blot analysis, were performed with oral cancer cell lines, YD-10B and YD-38. After treatment with HSP90 inhibitors, cell proliferation was significantly inhibited. When YD-10B and YD-38 cells were treated with various concentrations of geldanamycin and 17-AAG (0, 0.1, 0.3, 1 and $10{\mu}M$) for 24 hr, the growth of YD-10B cells was markedly reduced compared to that of YD-38 cells. Thereafter, the cells were subjected to flow cytometry, which revealed G2 arrest. These results demonstrated that geldanamycin induced G2 arrest and inhibited cell proliferation through the $p-GSK-3{\beta}$ pathway in YD-10B and YD-38 cells, thus inhibiting cell survival. HSP90 inhibitors are therefore expected to have a therapeutic effect on various cancer cell lines.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1993.05a
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• pp.94-94
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• 1993

Squamous cell carcinoma of the oral tongue was reviewed retrospectively for the evaluation of clinical features and for the comparison between treatment modalities. Medical records of 112 patients who underwent treatment between 1916 and 1989 at Yonsei University Severance Hospital were reviewed.22 eases were excluded from this study due to incomplete treatment. Minimum follow up period was 36 months and median follow up was 41 months(range 1 to 135 months). The most common site of the tumor was lateral border of the tongue. 45.6% of the patients showed nodal metastasis. The 5-year survival rate of the patients with stage I, II was 78.8%, and those with III, IV was 20.7%. Over all 5-year survival rate was 58.5% . Survival rate of the patients treated with radiation was 19.7% in contrast to 55.7%, 66.2% in surgery plus radiation and surgery alone. The most common sites of failures were the primary site. Reducing the rate of local recurrence and more radical therapy is desired to improve the survival of this cancer.