激素受体状态和HER2表达对HER2-阳性乳腺癌新辅助向治疗反应的影响:多中心回顾性研究
Dechuang Jiao1, Hao Dai1, Junchao Fei2
1Department of Breast Disease, Henan Breast Cancer Centre, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, China.
概括
HER2阳性乳腺癌治疗的敏感性因HER2和激素受体状态而异. 根据这些标记来定制新辅助疗法可以改善特定患者子组的结果.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 临床医学 临床医学
背景情况:
- HER2阳性乳腺癌的治疗反应受HER2和激素受体 (HoR) 状态的影响.
- 在HER2阳性乳腺癌中,新辅助疗法敏感性的子组变化尚不清楚.
研究的目的:
- 研究HER2表达水平和HoR状态对HER2阳性早期乳腺癌新辅助疗法反应的影响.
- 分析不同HER2和HoR亚群的全病理完整响应 (TpCR) 率,无病生存率 (DFS) 和PAM50内在亚型.
主要方法:
- 对两组患者队列 (n=2648和n=141) 的分析,这些患者患有HER2阳性早期乳腺癌,接受了新辅助治疗.
- 根据免疫组织化学HER2 (3+或2+) 和HoR状态,患者被分为四组.
- 对TpCR,DFS和PAM50亚型的评估;对Trastuzumab和Trastuzumab加上Pertuzumab疗效的评估.
主要成果:
- 与其他子组相比,HER2(3+) /HoR-子组的TpCR率 (44.5%) 显着更高.
- 在HER2(3+) /HoR-和HER2(3+) /HoR+组中,基于Trastuzumab的疗法改善了TPCR和DFS.
- 在接受新辅助向治疗的HER2 ((2+) 亚组中,没有观察到TpCR或DFS的显著改善.
结论:
- HER2表达水平和HoR状态显著调节了HER2阳性乳腺癌对新辅助向治疗的反应.
- 精准医学方法对于优化治疗策略和改善临床结果至关重要.
- 基于HER2和HoR状态的分组分层对于个性化治疗HER2阳性乳腺癌至关重要.
更多相关视频
11:12Optimization of a Multiplex RNA-based Expression Assay Using Breast Cancer Archival Material
Published on: August 1, 2018
7.8K
08:59Looking for Driver Pathways of Acquired Resistance to Targeted Therapy: Drug Resistant Subclone Generation and Sensitivity Restoring by Gene Knock-down
Published on: December 11, 2017
7.1K
相关概念视频
Targeted Cancer Therapies
7.4K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.4K
Target Cell Response to Hormones
2.7K
Hormones intricately bind to receptors on the surface or within target cells, initiating a cascade of cellular responses.
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
2.7K
Mitogens and the Cell Cycle
6.3K
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
6.3K
