NCT01553175已完成不适用
Determination of the Frequency of BRG1 and BRM Loss in Rhabdoid Tumors
适应症
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 25
- 主要终点
- Mechanism of suppression of BRG1 and BRM genes
研究概览
简要总结
RATIONALE: Studying samples of tumor tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and find biomarkers related to cancer. It may also help doctors find better ways to treat cancer.
PURPOSE: This research trial studies gene expression in samples from patients with rhabdoid tumors.
详细描述
OBJECTIVES:
- To determine if BRM is silenced in the majority, if not all, rhabdoid tumors by immunohistochemistry in primary tumors.
- To determine if BRG1 is silenced in the majority, if not all, rhabdoid tumors by immunohistochemistry in primary tumors.
- To determine if GATA1 and/or HDAC2 is overexpressed in the same tumors that lack BRM expression.
- To determine if BRM promoter polymorphisms correlate with loss of BRM expression in primary rhabdoid tumors.
- To determine how BRG1 is silenced in primary rhabdoid tumors by sequencing BRG1 exons in genomic DNA derived from frozen samples.
OUTLINE: Archived tumor tissue samples are analyzed for BRM, BRG1, GATA1, and/or HDAC2 expression by immunohistochemistry. BRM- and BRG1-negative samples are also analyzed.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Retrospective
入排标准
- 年龄范围
- — 至 120 Years（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
Mechanism of suppression of BRG1 and BRM genes
Absence or presence BRG1 and BRM expression in rhabdoid tumors
次要结局
未报告次要终点
研究者
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