相关实验视频

Updated: Jan 18, 2026

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

[BRCA病理序列变异和乳腺癌中的系统和局部瘤免疫反应]

Kana Ogisawa¹, Mayuko Hirata, Ayaka Yao

¹Dept. of Breast Surgical Oncology, Osaka Metropolitan University Graduate School of Medicine.

Gan to kagaku ryoho. Cancer & chemotherapy

|January 17, 2026

概括

乳腺癌中的BRCA致病序列变异 (PSVs) 可能不会直接影响瘤透淋巴细胞 (TILs). 然而,CD8+ T细胞的透显示出希望作为这些患者生存的预后因素.

科学领域:

在瘤学瘤学.
免疫学免疫学免疫学
遗传学是一个遗传学.

背景情况:

假设BRCA致病序列变异 (PSV) 通过瘤新抗原促进局部免疫反应,增加瘤透淋巴细胞 (TIL).
了解BRCA突变和免疫微环境之间的相互作用对于乳腺癌治疗策略至关重要.

研究的目的:

研究乳腺癌患者的BRCA-PSV和全身/局部免疫反应之间的关联.
探索在BRCA-PSV阳性乳腺癌中免疫标记物的预后意义.

主要方法:

对93名乳腺癌患者进行了BRCA-PSV的基因检测.
评估了BRCA-PSV和绝对淋巴细胞计数 (ALC),TIL,CD8+T细胞透和中性粒细胞与淋巴细胞比率 (NLR) 之间的相关性.
评估了免疫标记物对整体存活时间的预后价值.

主要成果:

17.2%的患者携带了BRCA-PSV.
在BRCA-PSV和ALC,TIL或CD8+T细胞透之间没有发现显著的相关性.
在BRCA-PSV和NLR之间观察到显著的关联 (p=0.006).
较低的TIL和高的CD8+T细胞透率与明显更好的整体存活率有关 (分别为p=0.026和p=0.020).

结论:

局部免疫标记物,特别是CD8+T细胞,可能是BRCA-PSV阳性乳腺癌的重要预后指标.
建议进行进一步的免疫类型和空间分析研究,以阐明这些发现.
这项研究强调了BRCA突变与瘤免疫微环境之间的复杂关系.

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

Silencing of BRCA2 to Identify Novel BRCA2-regulated Biological Functions in Cultured Human Cells

Silencing of BRCA2 to Identify Novel BRCA2-regulated Biological Functions in Cultured Human Cells

Published on: August 12, 2015

相关概念视频

Tumor Progression

Tumor Progression

Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...

Adaptive Mechanisms in Cancer Cells

Adaptive Mechanisms in Cancer Cells

Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...