相关实验视频

Updated: Jul 3, 2025

Author Spotlight: Exploring Sex-Specific Glial Signatures and Therapeutic Leads for Alzheimer's Disease

Author Spotlight: Exploring Sex-Specific Glial Signatures and Therapeutic Leads for Alzheimer's Disease

Published on: May 20, 2024

来自家族性阿尔茨海默氏症患者的介质干细胞以不同的方式表达微RNA

Lory J Rochín-Hernández¹, Lory S Rochín-Hernández², Mayte L Padilla-Cristerna¹

¹Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Instituto Politécnico Nacional 2508, Ciudad de México 07360, Mexico.

International journal of molecular sciences

|February 10, 2024

概括

这项研究揭示了患有PSEN1突变的个体的嗅觉干细胞中显著的microRNA (miRNA) 和mRNA表达变化,为阿尔茨海默病 (AD) 进展和潜在生物标志物提供了新的见解.

科学领域:

神经科学是一个神经科学.
遗传学遗传学是一种遗传学.
干细胞生物学干细胞生物学

背景情况:

阿尔茨海默病 (AD) 是导致痴呆的主要原因,没有治愈.
微RNAs (miRNAs) 是关键的基因调节剂和潜在的生物标志物.
PSEN1 ((A431E) 突变,也被称为哈利斯科突变,与家族性AD有关.

研究的目的:

研究PSEN1 (A431E) 突变对嗅觉性外介质干细胞 (MSC) 的转录组的影响.
分析不同疾病阶段 (无症状,症状前,症状) 的miRNA和mRNA表达特征.
为了确定miRNA目标和相关的AD影响生物途径.

主要方法:

从突变载体和健康捐赠者的MSC上使用表达微阵列进行转录组分析.
生物信息分析以确定差异表达的miRNA和mRNA.
针对已识别的miRNAs的目标基因预测.

主要成果:

在突变携带者和对照者之间以及不同症状组之间观察到miRNA和mRNA表达的显著变化.
生物信息学确定了参与细胞周期,衰老和多能性调节的特定miRNA目标.
这些目标与关键的细胞通信通路有关.

结论:

PSEN1 ((A431E) 突变改变了嗅觉MSC中的转录组和miRNA表达特征.
这些发现提高了对AD生理机制的理解.
这项研究可能会导致阿尔茨海默病的新型诊断指标和治疗策略.

关键词:

A431E A431E A431E A431E A431E A431E A431E A431E A431E A431E A431E A431E 阿尔茨海默氏症是阿尔茨海默氏症的一种疾病.哈利斯科的突变发生在哈利斯科.在PSEN1上.生物标志物生物标志物表观遗传学是指表观遗传学.家庭性阿尔茨海默氏症疾病介质细胞干细胞介质细胞干细胞这是一个小RNARNA.嗅觉嗅觉是一种嗅觉.转录组 (transcriptome) 是一个转录组.

更多相关视频

Mapping Alzheimer's Disease Variants to Their Target Genes Using Computational Analysis of Chromatin Configuration

Mapping Alzheimer's Disease Variants to Their Target Genes Using Computational Analysis of Chromatin Configuration

Published on: January 9, 2020

Isolating, Sequencing and Analyzing Extracellular MicroRNAs from Human Mesenchymal Stem Cells

Isolating, Sequencing and Analyzing Extracellular MicroRNAs from Human Mesenchymal Stem Cells

Published on: March 8, 2019

相关概念视频

Mesenchymal Stem Cells

Mesenchymal Stem Cells

Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...

MicroRNAs

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...