Related Experiment Video
Updated: Jul 26, 2026
11:37
Protocol for MicroRNA Transfer into Adult Bone Marrow-derived Hematopoietic Stem Cells to Enable Cell Engineering Combined with Magnetic Targeting
Published on: June 18, 2018
Synthetic nanomaterials for spleen-specific mRNA delivery
Shihong Nie1, Beiqi Yang2, Ruiying Ma2
1Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China.
Biomaterials
|October 3, 2024
Summary
Messenger RNA (mRNA) vaccines are gaining interest. Targeting the spleen for mRNA delivery using synthetic materials like lipid nanoparticles could enhance immune responses.
Area of Science:
- Biotechnology
- Immunology
- Nanomedicine
Background:
- Messenger RNA (mRNA) vaccines offer advantages in potency, safety, and manufacturing.
- Current intramuscular mRNA vaccine delivery elicits moderate immune responses by targeting local antigen-presenting cells (APCs).
- The spleen, rich in APCs and lymphocytes, presents an optimal site for robust immune initiation.
Purpose of the Study:
- To review recent advancements in synthetic materials for spleen-specific mRNA delivery.
- To highlight lipid nanoparticle (LNP)-based strategies for splenic targeting.
- To identify challenges in spleen-specific mRNA delivery for future nanomaterial development.
Main Methods:
- Literature review of synthetic materials for mRNA delivery.
- Focus on lipid nanoparticle (LNP) formulations.
- Analysis of spleen-specific delivery strategies.
Main Results:
- Synthetic materials are being developed for targeted mRNA delivery to the spleen.
- Lipid nanoparticles (LNPs) are a key technology for this approach.
- Spleen targeting holds potential for enhanced vaccine efficacy.
Conclusions:
- Spleen-specific mRNA delivery via synthetic materials, particularly LNPs, is a promising strategy.
- Overcoming delivery challenges is crucial for next-generation mRNA therapeutics.
- Targeting the spleen could significantly improve vaccine-induced immune responses.
Related Concept Videos
02:43Nucleic acids
Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
01:22MicroRNAs
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 ends...
01:23RNA Interference
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...
02:43Nucleic Acids
Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
01:22MicroRNAs
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...
01:25Nucleic Acid Structure
The pentose sugar in DNA is deoxyribose, while in RNA the pentose sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the ribose's second carbon and a hydrogen on the deoxyribose's second carbon. The phosphate residue attaches to the hydroxyl group of the 5′ carbon of one sugar and the hydroxyl group of the 3′ carbon of the sugar of the next nucleotide, which forms a 5′ to 3′ phosphodiester linkage.
DNA Structure
DNA has a double-helix structure. The...
DNA Structure
DNA has a double-helix structure. The...