• 제목/요약/키워드: Lichen planus

검색결과 72건 처리시간 0.025초

구강내 백색병소와 편평상피세포암종에서 bcl-2와 NOS2 비교발현에 관한 연구 (Comparative Expression of Bcl-2 and NOS2 in Oral White Lesions and Squamous Cell Carcinoma)

  • 신민;김은철
    • Journal of Oral Medicine and Pain
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    • 제24권2호
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    • pp.145-161
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    • 1999
  • The proto-oncogene bcl-2 confers a survival advantage to cells by blocking programmed cell death (apoptosis). Overexpression of bcl-2 probably plays a role in tumorigenesis, and the expression of the bcl-2 protein has been investigated in many kinds of tumors. An increased expression of nitric oxide synthetase(NOS) has been observed in human colon cancer cell lines as well as in human gynecological, breast, and CNS tumors. However there have been only a few reports on the expression of bcl-2 and $NOS_2$ in oral white lesions and cancer. The aim of this study was to investigate the relationship between the expression of Bcl-2 and $NOS_2$ and several pathological parameters such as histological types and layers. We reported desregulation of bcl-2 and $NOS_2$ expression during progression from oral white lesion, lichen planus and leukoplakia to squamous cell carcinoma. The obtained results were as follows: 1. Immunohistochemical analysis with monoclonal antibodies to bcl-2 oncoprotein and $NOS_2$ in formalin-fixed paraffin-embedded tissue sections revealed that bcl-2 expression is restricted to the basal cell layer and $NOS_2$ was mild expressed only in subepithelial inflammatory cells in normal human mucosa. There wasn't specific finding of those in lichen planus and leukoplakia. 2. Bcl-2 immunoreactivity in severe epithelial dysplasia or CIS occurs throughout the epithelium, $NOS_2$ reactivity in most superficial layer were noted. 3. In well-differentiated squamous cell carcinomas, mostly bcl-2 was overexpressed. In moderated and poor squamous cell carcinomas, the expression of $NOS_2$ was increased and that of bcl-2 was decreased. 4. The immunoreactivity of bcl-2 was 12.5% of normal mucosa, 30% of leukoplakia, 44% of lichen planus and 67% of carcinoma in situ. In carcinoma, those were 43%, 50% and 67% according to differentiation, respectively. 5. The immunoreactivity of $NOS_2$ was 25% of normal mucosa, 70% of leukoplakia, 78% of lichen planus and 100% of carcinoma in situ and epithelial dysplasia. In carcinoma, those were higher in moderated(100%) and poor(83%) squamous cell carcinomas than in well differentiated type(71%). 6. The expression of bcl-2 and $NOS_2$ by Western blot was increased highly in lichen planus and leukoplakia. Therefore, the expression of bcl-2 was increased in the white and precancerous lesions and that was decreased by differentiation of carcinoma. However, $NOS_2$ immunoreactivity in carcinoma in situ was lower than those in moderated and poor squamous cell. These findings suggest that the interaction of bcl-2 and $NOS_2$ may be roled importantly in growth and development of carcinoma.

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구강편평태선에 대한 sulfasalzine의 국소적용 (A New Treatment Modality Using Topical Sulfasalazine for Oral Lichen Planus)

  • 정성희;박수현;옥수민;허준영;고명연;안용우
    • Journal of Oral Medicine and Pain
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    • 제37권3호
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    • pp.155-159
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    • 2012
  • 구강편평태선은 면역매개성 반응으로 유발되는 만성염증질환으로 정의할 수 있으며 그 정확한 원인은 아직 밝혀지지 않은 상태이다. 일반적으로 스테로이드를 이용한 국소적 또는 전신적 치료를 시행하고 있으나 스테로이드 치료에 반응이 없는 환자의 경우에는 치료가 힘들다. Sulfasalzine은 염증성 장질환을 치료하기 위한 약물로 선택되고 있고 류마티스성 관절염에서도 치료제로 사용하고 있다. 염증성 장질환과 구강편평태선에서 발병기전을 살펴보면 공통적인 부분이 많이 발견된다. 전신적으로 투여시 나타나는 부작용을 최소화하고 접근의 편이성을 위하여 Sulfasalzine을 구강편평태선에 국소 도포의 형태로 시도하였으며, 본 연구에서는 성공적으로 치료한 2 치험례를 소개하였다. 첫번째 증례에서는 8주간의 도포(30mg/5ml, 하루3번) 후 증상이 완화되었으며, 두번째 증례에서는 15주간의 도포 후 증상이 완화되었다. 두 증례 모두 스테로이드에 치료반응이 없었던 환자였으며 sulfasalazine 도포 후 현재까지 증상이 완화된 상태로 지내고 있다. 따라서 Sulfasalazine은 구강편평태선환자에서 치료약물로 선택될 수 있다는 결론을 얻었다.

Lichen planus

  • 고명연
    • 대한치과의사협회지
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    • 제21권6호통권169호
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    • pp.435-435
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    • 1983
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The Correlation between Desquamative Gingivitis Associated-Diseases and Plaque-Induced Periodontal Disease

  • Lim, Hyun-Dae;Kang, Jin-Kyu;Lee, You-Mee;Shim, Young-Joo
    • Journal of Oral Medicine and Pain
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    • 제40권4호
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    • pp.135-139
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    • 2015
  • Desquamative gingivitis (DG) is a gingival manifestation of systemic mucocutaneous disorders such as mucous membrane pemphigoid, oral lichen planus, and pemphigus vulgaris. The lesion is very painful, so affects the patient's ability to do proper oral hygiene practices. This may be a potential risk factor for long-term periodontal health. However, there is some controversy about the relationship between the existence of DG and periodontal status. Although the correlation between DG-associated diseases and periodontal status is not to be certain, early diagnosis and appropriate treatment including adequate plaque control and removal of local factors is very important for preventing the progression of diseases and destruction of periodontal tissues.

구강 내 불량한 보철물 수복이 편평태선에 미치는 영향에 대한 치주, 보철적 접근 (The effect of improperly contoured and poor fitting restorations to patient with oral lichen planus: periodontal and prosthetic treatment)

  • 신진범;조진현;이청희
    • 구강회복응용과학지
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    • 제31권4호
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    • pp.371-377
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    • 2015
  • 편평태선은 피부, 점막에 양측성 또는 다발성의 병소가 만성으로 나타나는 흔한 질환이다. 편평태선을 발생시키는 원인으로는 구강 내 수복물, 전신질환, 약물, 스트레스 등 여러 가지 요인이 작용한다고 알려져 있다. 그 중 편평태선에 대한 구강 내 수복물과 위생관리의 영향은 치과 영역에서 큰 관심이 되어왔다. 본 증례는 형태가 불량하고 경계가 잘 맞지 않는 보철물이 수복되어 있는 편평태선 환자에 관한 것이다. 환자는 오랜 시간 동안 편평태선으로 치료받고 있었고 양측 구치부에 금속도재관을 수복한 이후 증상이 더욱 악화되어 있었다. 불량한 적합도와 외형을 보이는 금속도재관을 제거하고 치주치료를 동반하여 보철물의 형태와 변연 적합도를 개선시킴으로써 편평태선이 효과적으로 줄어들었기에 다음을 보고자 한다.