関連する実験動画
Updated: Jan 7, 2026

09:05
MicroRNA-based Regulation of Picornavirus Tropism
Published on: February 6, 2017
7.9K
MicroRNAが宿主と媒介原虫の相互作用を調整する:免疫調節と種間コミュニケーションの架け橋
Jianyong Li1,2, Feng Zhu1,2, Jian Zhang1,2
1Department of Pathogenic Biology, Army Medical University (Third Military Medical University), Chongqing, China.
Frontiers in immunology
|December 26, 2025
まとめ
マイクロRNA(miRNA)は、マラリアなどの疾患における宿主-原虫相互作用を調節する。これらの分子は免疫応答を調節し、病原体を標的とすることができ、新しい診断および治療戦略を提供する。
科学分野:
- 分子生物学
- 免疫学
- 寄生虫学
背景:
- 媒介原虫疾患は、世界的な健康に重大な課題をもたらしている。
- 宿主-病原体分子相互作用は重要であるが、十分に理解されていない。
- マイクロRNA(miRNA)は、これらの相互作用における主要なエピジェネティック調節因子として登場している。
研究 の 目的:
- miRNAが宿主-原虫相互作用において果たす役割についての現在の理解をレビューする。
- 原虫疾患と闘う上でのmiRNAの翻訳的可能性を探る。
主な方法:
- miRNAを介した宿主-病原体間の対話に関する現在の知識を統合した文献レビュー。
- 原虫感染中のmiRNA発現変化の分析。
- 宿主免疫細胞および原虫病原体に対するmiRNAターゲティングの検討。
主要な成果:
- 原虫感染は、宿主のmiRNA発現に動的な変化を引き起こす。
- miRNAは、マクロファージの分極やリンパ球の分化を含む、自然免疫と獲得免疫を調節する。
- miRNAは病原体の複製を直接阻害することができる一方、病原体は宿主のmiRNAを操作することができる。
結論:
- 宿主と原虫の間には、miRNAを介した双方向の対話が存在する。
- miRNAは、疾患の進行と免疫応答の形成において極めて重要である。
- miRNAは、顧みられない原虫疾患のバイオマーカーおよび治療標的として有望である。
関連する概念動画
Microorganisms in Medicine and Therapeutics
911
Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
911
Immune Response Against Viral Pathogens
1.6K
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
1.6K
MicroRNAs
23.8K
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...
23.8K
MicroRNAs
3.7K
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...
3.7K
The Antiviral System of Bacteria and Archaea: CRISPR
584
CRISPR stands for Clustered Regularly Interspaced Short Palindromic Repeats is a adaptive immune system found in bacteria and archaea that protects against viral infections. This system enables prokaryotic cells to identify, remember, and neutralize foreign genetic elements, primarily bacteriophages, by storing fragments of the invader’s DNA as a genetic memory.The CRISPR immune response begins during an initial infection. Cas (CRISPR-associated) proteins play a central role in this...
584
RNA Interference
27.7K
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
27.7K

