妇科癌症中的微生物群落及其与瘤体质变异的关联
Jesus Gonzalez-Bosquet1,2, Megan E McDonald1,2, David P Bender1,2
1Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, USA.
Cancers
|July 14, 2023
概括
在上生殖道中改变的细菌群体与妇科癌症的基因组变异相关. 检测这些微生物组变化可能会为处于风险的妇女提供早期癌症预防策略.
科学领域:
- 妇科瘤学 妇科瘤学
- 微生物组研究的研究.
- 基因组变异分析
背景情况:
- 微生物组与包括癌症在内的各种人类疾病之间存在着密切的联系.
- 除了HPV诱导的宫癌之外,将微生物组与妇科癌症发展联系在一起的机制在很大程度上仍未被探索.
- 该假设认为,在上生殖道中的微生物社区转移可以驱动特定的基因组变化,使组织易患恶性瘤.
研究的目的:
- 调查妇科癌症和正常组织之间微生物组成和基因组变异的差异.
- 确定微生物群落的转变是否与妇科癌症中的特定单核酸变异 (SNVs) 相相关.
- 探索微生物组分析在妇科癌症预防方面的潜力.
主要方法:
- 追溯嵌套病例控制研究设计.
- 从癌症和正常妇科样本中分析临床和基因组数据.
- 微生物群落的分类学概况和SNVs的识别.
- 微生物组成和基因组变异之间的相关性分析.
- 使用独立数据集进行验证.
主要成果:
- 在上生殖道中观察到微生物群落组成的显著差异,在下部地区的多样性更大.
- 癌症和对照样本之间的特定基因组变异与微生物群落观察到的变化有很强的相关性.
- 对相关基因的途径分析提供了对微生物组相关癌症发生的分子基础的见解.
结论:
- 这项研究证实了女性生殖道内的动态微生物景观及其与癌症中的基因组变化相关.
- 研究结果表明,上生殖道的细菌社区变化与妇科癌症的发展有关.
- 早期检测异常微生物群体可能为高风险个体的妇科癌症预防提供一种新的策略.
相关概念视频
Cancers Originate from Somatic Mutations in a Single Cell
12.1K
Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
12.1K
The Tumor Microenvironment
6.7K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.7K


