相关实验视频

Updated: Jun 15, 2025

In Vivo and Ex Vivo Approaches to Study Ovarian Cancer Metastatic Colonization of Milky Spot Structures in Peritoneal Adipose

In Vivo and Ex Vivo Approaches to Study Ovarian Cancer Metastatic Colonization of Milky Spot Structures in Peritoneal Adipose

Published on: October 14, 2015

在阿曼,中东早期乳腺癌患者的BRCA1/2突变和结果

Waleed S Al Amri¹, Ahmed H Al Amri², Aisha Al Abri¹

¹Department of Histopathology and Cytopathology, Royal Hospital, P.C. 111, Muscat, Oman.

|August 26, 2024

概括

早期发病的乳腺癌 (EOBC) 在中东很常见,但BRCA1/2基因突变在阿曼EOBC病例中并不过多. 这表明其他因素有助于这一群体中早期乳腺癌的高发病率.

科学领域:

在瘤学瘤学.
遗传学是一个遗传学.
流行病学流行病学

背景情况:

早期发病的乳腺癌 (EOBC) 在中东人口中具有很高的患病率,在阿曼,超过50%的患者在45岁之前被诊断出乳腺癌.
这种EOBC高发病率的根本原因尚不清楚.
虽然生殖线BRCA基因突变与EOBC有关,但它们在阿曼的流行率和EOBC与EOBC的关联尚未先前评估.

研究的目的:

在阿曼的早期乳腺癌 (EOBC) 患者中调查生殖线BRCA1/2突变的患病率.
确定BRCA1/2突变状态与EOBC中的临床病理特征之间的相关性.
分析BRCA1/2突变对EOBC患者结局的影响.

主要方法:

分析了1336名在阿曼 (2010-2022) 接受治疗的中东乳腺癌 (BC) 患者的临床数据.
使用测序和MLPA技术识别了生殖系BRCA1/2基因突变.
进行了相关性和卡普兰-梅尔生存分析,以评估临床病理特征,基因突变和结果之间的关系.

主要成果:

在BRCA1/2突变状态和早期乳腺癌 (EOBC) (P=.229) 之间没有发现显著的相关性.
与晚期发病病例相比,EOBC瘤显著更大,更高等级,并且更频繁的 HER2 丰富或三阴性亚型.
无论BRCA突变状态如何,EOBC与明显更差的无疾病生存率 (P=.002) 有关.

结论:

在阿曼的EOBC病例中,生殖系BRCA1/2突变并不过多,不太可能是高EOBC率的主要原因.
在这一群体中,EOBC表现出明显的临床病理特征和较差的生存结果.
该研究确定了新的BRCA2突变和潜在的创始人复发突变,有助于理解该地区的遗传变异.

关键词:

变种 BRCA 突变变种 BRCA 突变这就是BRCA1/2基因.在阿曼的乳腺癌.早期发病的乳腺癌.

更多相关视频

Identifying the Effects of BRCA1 Mutations on Homologous Recombination using Cells that Express Endogenous Wild-type BRCA1

Identifying the Effects of BRCA1 Mutations on Homologous Recombination using Cells that Express Endogenous Wild-type BRCA1

Published on: February 17, 2011

gDNA Enrichment by a Transposase-based Technology for NGS Analysis of the Whole Sequence of BRCA1, BRCA2, and 9 Genes Involved in DNA Damage Repair

gDNA Enrichment by a Transposase-based Technology for NGS Analysis of the Whole Sequence of BRCA1, BRCA2, and 9 Genes Involved in DNA Damage Repair

Published on: October 6, 2014

相关概念视频

Mismatch Repair

Mismatch Repair

Organisms are capable of detecting and fixing nucleotide mismatches that occur during DNA replication. This sophisticated process requires identifying the new strand and replacing the erroneous bases with correct nucleotides. Mismatch repair is coordinated by many proteins in both prokaryotes and eukaryotes.
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...

Cancer Survival Analysis

Cancer Survival Analysis

Cancer survival analysis focuses on quantifying and interpreting the time from a key starting point, such as diagnosis or the initiation of treatment, to a specific endpoint, such as remission or death. This analysis provides critical insights into treatment effectiveness and factors that influence patient outcomes, helping to shape clinical decisions and guide prognostic evaluations. A cornerstone of oncology research, survival analysis tackles the challenges of skewed, non-normally...

Oogenesis

Oogenesis

In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...