相关实验视频

Updated: Jul 15, 2025

Harnessing the Power of MicroRNA Cargoes in Small Extracellular Vesicles Released from Fresh-Frozen Human Brain Sections

Harnessing the Power of MicroRNA Cargoes in Small Extracellular Vesicles Released from Fresh-Frozen Human Brain Sections

Published on: November 8, 2024

小型细胞外囊泡 - - 作为先进生物工程的宿主和非编码RNA的"特洛伊木马"

Artur Bryja¹, Łukasz Zadka², Maryam Farzaneh³

¹Division of Anatomy, Department of Human Morphology and Embryology, Wroclaw Medical University, Wrocław, Poland.

|September 28, 2023

概括

携带非编码RNA (ncRNA) 的小细胞外囊泡 (sEV) 作为治疗输送载体. 虽然有望在癌症等疾病中进行向基因沉默,但潜在的意外后果需要仔细考虑.

科学领域:

生物化学生物化学
分子生物学分子生物学
细胞生物学细胞生物学

背景情况:

小型细胞外囊泡 (sEVs) 对于细胞间通信至关重要.
在sEV中封装的非编码RNA (ncRNA) 在生物过程中起着至关重要的作用.
sEVs作为自然的"特洛伊木马"来运输货物,包括ncRNAs,跨越生物障碍.

研究的目的:

探索sEVs和ncRNAs之间的复杂关系.
突出sEVs作为ncRNAs的治疗载体的潜力.
讨论在向治疗中使用sEVs和ncRNAs的优势和担忧,特别是在癌症中.

主要方法:

对关于sEVs和ncRNAs的现有文献的审查.
对sEVs"特洛伊木马"机制的分析.
检查sEV介导的ncRNA输送的治疗潜力和挑战.
对外体的深入分析作为封装ncRNAs的sEV模型.

主要成果:

sEVs有效地将ncRNA运送到目标细胞,从而逃避免疫检测.
通过sEVs传递的治疗性ncRNA显示出选择性基因沉默的潜力.
外基因组作为理解SEV及其ncRNA载荷的代表性模型.

结论:

sEVs和ncRNAs之间的共生关系提供了新的治疗策略.
利用sEV用于针对性地传递ncRNAs比传统方法具有优势.
需要进一步的研究来解决安全问题,并优化sEV-ncRNA疗法的临床应用.

关键词:

外基因组是外基因组的组成部分.没有编码的RNAs.小小的细胞外囊泡.治疗剂治疗剂治疗剂癌症癌症癌症癌症癌症

更多相关视频

Characterizing Extracellular Vesicles from Biological Fluids

Characterizing Extracellular Vesicles from Biological Fluids

Published on: February 28, 2025

Uptake of Fluorescent Labeled Small Extracellular Vesicles In Vitro and in Spinal Cord

Uptake of Fluorescent Labeled Small Extracellular Vesicles In Vitro and in Spinal Cord

Published on: May 23, 2021

相关概念视频

Overview of Exosomes

Overview of Exosomes

Exosomes are stable, lipid bilayer-enclosed vesicles capable of crossing biological barriers. They can carry a wide range of molecules required for intercellular communication. Once exosomes are released from the cell where they originated, they enter a recipient cell through various pathways such as fusion, receptor-mediated endocytosis, macropinocytosis, and phagocytosis.
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...

COP Coated Vesicles

COP Coated Vesicles

Membrane-enclosed structures called vesicles transport proteins and lipids across the cell. The vesicles derive their cargo from the plasma membrane, Golgi, ER, or endosome. Coated vesicles are spherical, protein-coated carriers with a 50–100 nm diameter that mediate bidirectional transport between the ER and the Golgi. The distribution of proteins between the ER and Golgi complex is dynamic and is maintained by different coated vesicles. Their formation is driven by the assembly of...

lncRNA - Long Non-coding RNAs

lncRNA - Long Non-coding RNAs

In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...

Overview of Secretory Vesicles

Overview of Secretory Vesicles

Secretory vesicles, also known as dense core vesicles (DCVs), are membrane-bound vesicles that transport secretory proteins, such as hormones or neurotransmitters. Regulated secretory vesicles transport proteins from the trans-Golgi network to the exterior of the cell. Proteins present in regulated secretory vesicles are required to be rapidly exocytosed in large amounts upon a specific stimulus.
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...

siRNA - Small Interfering RNAs

siRNA - Small Interfering RNAs

Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...

Regulated mRNA Transport

Regulated mRNA Transport

In eukaryotes, transcription and translation are compartmentalized; an mRNA is first synthesized in the nucleus and then selectively transported to the cytoplasm for protein synthesis. Before transport, a pre-mRNA undergoes several steps of post-transcriptional modifications including splicing, 5' capping, and the addition of a poly-adenine tail. Various proteins bind to the pre-mRNA during these modifications. The mRNA transport takes place with the help of multiple proteins playing...