病人的表观遗传分层揭示了2型喘的子内型,B细胞反应发生变化
Aditya Gorla1,2, Jonathan Witonsky3, Zeyuan Johnson Chen4
1Department of Computational Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
新的DNA甲基化 (DNAm) 分析揭示了一个独特的喘亚内型,T2高喘与改变的B细胞反应 (T2ABC),影响治疗的有效性. 这种分层改善了严重喘患者的精准医学.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
- 计算生物学 计算生物学
背景情况:
- 尽管有针对性的治疗,但2型 (T2) 高喘的结果是异质的.
- 一些患者对T2生物治疗没有很好的反应,这表明需要更好的分层.
研究的目的:
- 利用DNA甲基化 (DNAm) 开发一种用于患者分层的机器学习方法.
- 在T2高喘人群中识别新的喘亚内型.
- 评估临床试验中识别的特征的预后价值.
主要方法:
- 开发了一种对比的机器学习方法,用于基于DNAm的患者分层.
- 将该方法应用于各种儿童和成人喘队列.
- 利用转录组和单细胞分析来表征子内型.
主要成果:
- 确定了DNAm分层分数,揭示了临床严重程度和药物反应连续性.
- 发现了一种T2高喘与改变B细胞响应 (T2ABC) 亚内型,其特征是B细胞谱系活动.
- T2ABC签名预测了抗IgE疗法 (奥马利祖马布) 的不良结果,并表明非IgE血细胞活性.
结论:
- 基于DNAm和转录基因的分层可以定义新的喘子内型,如T2ABC.
- T2ABC亚内型可能不会从IgE向治疗中受益,这表明了替代治疗策略.
- 患者分层改进药物开发和药物管理,用于精确的T2喘治疗.
更多相关视频
10:39Advanced Imaging of Lung Homing Human Lymphocytes in an Experimental In Vivo Model of Allergic Inflammation Based on Light-sheet Microscopy
Published on: April 16, 2019
08:44Identification and Characterization of Immunogenic RNA Species in HDM Allergens that Modulate Eosinophilic Lung Inflammation
Published on: May 30, 2020
相关概念视频
Asthma-II: Pathophysiology and Classification
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Asthma: Pathogenesis and Management
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
Asthma-I: Introduction
Asthma-IV: Diagnostic and Management
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:
