改善了喘基因变异的注释与细胞类型解卷,鼻腔和肺部表达量的特征位置
Zaid W El-Husseini1,2, Tatiana Karp3, Andy Lan4
1University Medical Centre Groningen, Department of Pediatric Pulmonology and Pediatric Allergology, Groningen, Netherlands.
American journal of respiratory cell and molecular biology
|January 21, 2025
概括
这项研究表明,考虑到鼻腔和肺组织中的细胞类型比例,可以显著改善对影响基因表达的喘相关遗传变异的识别. 这种方法提高了对喘遗传学和潜在治疗点的理解.
科学领域:
- 遗传学和基因组学 遗传学和基因组学
- 呼吸系统医学 呼吸系统医学
- 生物信息学是一种生物信息学.
背景情况:
- 喘是一种复杂的炎症性呼吸道疾病,受到众多单核酸多态 (SNP) 的影响.
- 许多喘相关的SNP对肺部和呼吸道上皮细胞的功能影响仍然在很大程度上未被描述.
- 表达量的特征位点 (eQTL) 分析是将遗传变异与基因表达联系起来的关键方法.
研究的目的:
- 在鼻腔和肺部样本上进行eQTL分析,以识别喘相关的遗传变异.
- 调查是否结合细胞类型比例可以增强喘相关SNP的eQTL分析.
- 探索细胞类型特定的eQTL及其与喘相关SNP的相互作用.
主要方法:
- 在鼻刷 (n=792) 和肺组织 (n=1,087) 样本中对eQTL的元分析.
- 使用人类肺细胞图谱估计的细胞类型比例的调整.
- 探索喘相关SNP与细胞类型比例之间的相互作用效应.
主要成果:
- 在鼻腔和肺样本中分别确定了44个和116个喘相关的SNP作为eQTL.
- 结合细胞类型比例,在鼻腔样本中发现了另外17个基因和肺样本中的16个基因的eQTL.
- 发现了9个SNP和特定细胞类型 (俱乐部,杯子,膜巨细胞) 之间的显著相互作用,涉及VASP,FOXA3和PCDHB12等基因.
结论:
- 考虑到大量RNA测序数据中的细胞类型比例,增加了检测喘相关SNP的eQTL的能力.
- 这种细胞类型解和eQTL分析的综合方法加深了对喘遗传基础和细胞机制的理解.
- 这些发现突出了个性化喘干预的潜在新型治疗点.
更多相关视频
06:08Author Spotlight: Advancing Allergic Rhinitis Research with Multicolor Immunofluorescence
Published on: September 22, 2023
1.6K
09:07Author Spotlight: Development and Characterization of an In Vitro Model to Study Chronic Cigarette Smoke Exposure and Its Impact on Airway Epithelial Cells in COPD Research
Published on: July 12, 2024
935
相关概念视频
01:20Asthma: Pathogenesis and Management
Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
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.
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.
01:29Asthma-I: Introduction
Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...
01:26Asthma-II: Pathophysiology and Classification
Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
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:
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:
01:30Asthma-IV: Diagnostic and Management
The diagnosis and management of asthma are comprehensive, encompassing clinical assessments, lung function tests, and pharmacological interventions. Here's an overview:
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:
01:29Pharmacogenomics: Identification of New Drug Targets
Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
01:28Asthma I: Introduction
Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow obstruction and heightened bronchial responsiveness to a wide range of triggers. The underlying inflammation leads to airway swelling, mucus hypersecretion, and smooth muscle constriction, all of which narrow the airway lumen and impede airflow. Clinically, asthma presents with recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing, symptoms that typically vary in intensity and...