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中国真菌学杂志 2010, Vol. 5  Issue (6): 336-339.

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STE12α基因对新生隐球菌形态学影响的初步研究

贾祎鹏1, 朱红梅2, 赵瑾2, 温海2   

  1. 1. 解放军第303医院皮肤科, 南宁, 530021;
    2. 第二军医大学长征医院皮肤科, 上海, 200003
  • 收稿日期:2010-11-05 出版日期:2010-12-28 发布日期:2010-12-28
  • 通讯作者: 朱红梅,E-mail:hmzhu_cn@yahoo.com.cn;温海,E-mail:wenhai98@sohu.com E-mail:wenhai98@sohu.com
  • 作者简介:贾祎鹏,男(汉族),硕士,主治医师.E-mail:jyplg855@sina.com
  • 基金资助:
    国家自然科学基金(30500441,30670118)

Effect of STE12α-gene on the morphology of Cryptococcus neoformans

JIA Yi-Peng1, ZHU Hong-Mei2, ZHAO Jin2, WEN Hai2   

  1. 1. Department of Dermatology, No.303 Hospital of PLA, Nanning 530021, China;
    2. Department of Dermatology, Changzheng Hospital, Second Military Medical Univercity, Shanghai 200003
  • Received:2010-11-05 Online:2010-12-28 Published:2010-12-28

摘要: 目的 研究STE12α基因对新生隐球菌形态学的影响。方法 分别敲除血清A型和血清B型新生隐球菌菌株的STE12α基因,建立缺陷株,再将STE12α基因重新导入建立重建株。观察并比较野生株、STE12α基因缺陷株及重建株在体内、外孵育后菌落和菌落的形态学差异。结果 STE12α基因缺陷株组形成的菌落明显偏少,菌株直径偏小,荚膜发育不良,而重构株组这些方面的改变都得到了恢复。结论 STE12α基因对新生隐球菌的形态学改变有着重要的影响,可能直接影响其毒力。

关键词: 新生隐球菌, STE12α基因, 毒力

Abstract: Objective To explore the effect of STE12α-gene on the morphology of Cryptococcus neoformans.Method The STE12α-gene was disrupted from Cryptococcus neoformans serotype A and serotype B to set up deficient strain.Then the gene was reconstituted into the allele locus of deficient strain.Morphological differences were studied in vitro and in vivo.Results Ste12α mutant strain exhibited an obvious defect in colony quantity,colony diameter and capsular size but recovered by reconstitution.Conclusion STE12α-gene play an important role in the morphology and virulence of Cryptococcus neoformans.

Key words: Cryptococcus neoformans, STE12αgene, morphology, virulence

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