• 제목/요약/키워드: dot-blot

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배추 약 발달 시기별 유전자의 발현 양상 (Expressional Patterns of Anther-specific Genes from Chinese Cabbage during the Flower Development)

  • 김현욱;정규환
    • 원예과학기술지
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    • 제17권1호
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    • pp.7-10
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    • 1999
  • 배추의 약(anther) 발달에 관여하는 유전자를 분리, 특성을 구명하고, 궁극적인 목표로는 특이 발현을 조절하는 프로모터를 분리 작물의 웅성불임 유기 및 임성화복에 응용하고자 본 연구를 수행하였다. 배추 약 cDNA 유전자 은행으로부터 차별화 선별(differential screening)에 의해 얻어진 15개의 약특이 유전자들의 부분 염기서열 결정 후 기존에 보고된 유전자들과 상동성 검색을 통해 그 기능을 추정해 본 결과 cDNA clone BAN52는 polygalacturonase, BAN84는 ascorbate oxidase, BAN101은 $H^+-translocating$ ATPase, BAN2는 pectin esterase 유전자와 상동성을 보였으나, 그 외 유전자들은 상동성이 없어 그 기능을 추정할 수 없었다. 상기 유전자들의 발현시기를 꽃 발달 시기별로 조사한 결과 대부분의 유전자들이 (BAN5, 10, 33, 52, 57, 102, 103, 215, 229) 꽃봉오리 2.1mm 내외에서 발현이 시작하여 성숙화분까지 그 발현양이 증가하였고, BAN32, 54, 62, 84, 101는 꽃봉오리 3.9mm인 약발달 후기부터 나타났고, BAN87 유전자는 그 양은 적지만 약 발달 초기부터 후기까지 발현하였다.

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Serum Anti-Gal-3 Autoantibody is a Predictive Marker of the Efficacy of Platinum-Based Chemotherapy against Pulmonary Adenocarcinoma

  • Yanagita, Kengo;Nagashio, Ryo;Ryuge, Shinichiro;Katono, Ken;Jiang, Shi-Xu;Tsuchiya, Benio;Nakashima, Hiroyasu;Fukuda, Eriko;Goshima, Naoki;Saegusa, Makoto;Satoh, Yukitoshi;Masuda, Noriyuki;Sato, Yuichi
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권17호
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    • pp.7959-7965
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    • 2015
  • Background: Identification of predictive markers for the efficacy of platinum-based chemotherapy is necessary to improve the quality of the life of cancer patients. Materials and Methods: We detected proteins recognized by autoantibodies in pretreated sera from patients with lung adenocarcinoma (AC) evaluated as showing progressive disease (PD) or a partial response (PR) after cisplatin-based chemotherapy by proteomic analysis. Then, the levels of the candidate autoantibodies in the pretreated serum were validated by dot-blot analysis for 22 AC patients who received platinum-based chemotherapy, and the expression of identified proteins was immunohistochemically analyzed in 40 AC biopsy specimens. Results: An autoantibody against galectin-3 (Gal-3) was detected in pretreated sera from an AC patient with PD. Serum IgG levels of anti-Gal-3 autoantibody were significantly higher in patients evaluated with PD than in those with PR and stable disease (SD) (p = 0.0084). Furthermore, pretreated biopsy specimens taken from patients evaluated as showing PD following platinumbased chemotherapy showed a tendency to have a higher positive rate of Gal-3 than those with PR and SD (p = 0.0601). Conclusions: These results suggest that serum IgG levels of anti-Gal-3 autoantibody may be useful to predict the efficacy of platinum-based chemotherapy for patients with lung AC.