相关实验视频

Updated: Jun 5, 2025

Isolation and Analysis of Hematopoietic Stem Cells from the Placenta

Isolation and Analysis of Hematopoietic Stem Cells from the Placenta

Published on: June 24, 2008

无细胞的胎盘DNA:我们真正知道什么?

Natalie Yuen¹, Melanie Lemaire², Samantha L Wilson^1,2

¹Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada.

|December 9, 2024

概括

母体血液中的无细胞胎盘DNA (cfpDNA) 为胎儿发育提供了一个非侵入性的窗口. 了解其起源和特征对于推进生殖医学和诊断至关重要.

科学领域:

生殖生物学生殖生物学
遗传学是一个遗传学.
分子诊断学分子诊断学

背景情况:

在怀孕期间,无细胞的胎盘DNA (cfpDNA) 在母亲的血液中循环.
它允许对胎盘表观基因组进行非侵入性调查,从而绕过了侵入性手术的需要.
在非侵入性产前检测 (NIPT) 中确立了临床使用,但基本生物学不清楚.

研究的目的:

审查关于cfpDNA的起源和分子特征的当前知识.
识别cfpDNA生物学中的知识差距.
建议cfpDNA的未来研究方向.

主要方法:

关于cfpDNA的现有研究的文献综述.
对目前对cfpDNA起源的理解进行分析.
对cfpDNA分子性质的检查.

主要成果:

cfpDNA起源于胎盘,可以在母体循环中检测到.
它的分子特征,如大小和表观遗传修饰,正在调查中.
在了解其释放,清除和精确的生物作用方面存在重大差距.

结论:

对cfpDNA生物学进行进一步的研究对于最大限度地发挥其在研究和临床应用中的潜力至关重要.
了解cfpDNA将增强其实用性,超越目前的NIPT应用.
解决知识差距将促进新的诊断和治疗策略.

更多相关视频

Mouse In Vivo Placental Targeted CRISPR Manipulation

Mouse In Vivo Placental Targeted CRISPR Manipulation

Published on: April 14, 2023

siRNA Transfection and EMSA Analyses on Freshly Isolated Human Villous Cytotrophoblasts

siRNA Transfection and EMSA Analyses on Freshly Isolated Human Villous Cytotrophoblasts

Published on: September 20, 2016

相关概念视频

Animal Mitochondrial Genetics

Animal Mitochondrial Genetics

Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...

Non-nuclear Inheritance

Non-nuclear Inheritance

Most DNA resides in the nucleus of a cell. However, some organelles in the cell cytoplasm⁠—such as chloroplasts and mitochondria⁠—also have their own DNA. These organelles replicate their DNA independently of the nuclear DNA of the cell in which they reside. Non-nuclear inheritance describes the inheritance of genes from structures other than the nucleus.