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Related Concept Videos

Microorganisms in Medicine and Therapeutics01:29

Microorganisms in Medicine and Therapeutics

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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.
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Regulated mRNA Transport02:22

Regulated mRNA Transport

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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...
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Initiation of Translation02:33

Initiation of Translation

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Initiating translation is complex because it involves multiple molecules. Initiator tRNA, ribosomal subunits, and eukaryotic initiation factors (eIFs) are all required to assemble on the initiation codon of mRNA. This process consists of several steps that are mediated by different eIFs.
First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
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Types of RNA01:23

Types of RNA

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Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
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Types of RNA01:20

Types of RNA

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Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
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Synthesis and Characterization of mRNA-Loaded PolyBeta Aminoesters Nanoparticles for Vaccination Purposes
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Formulation and Delivery Technologies for mRNA Vaccines.

Chunxi Zeng1, Chengxiang Zhang1, Patrick G Walker2

  • 1Division of Pharmaceutics & Pharmacology, College of Pharmacy, The Ohio State University, 43210, Columbus, OH, USA.

Current Topics in Microbiology and Immunology
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Messenger RNA (mRNA) vaccines utilize advanced formulation and delivery strategies for infectious disease prevention and cancer treatment. Research explores various delivery methods to enhance antigen presentation and immune stimulation for improved vaccine efficacy.

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Area of Science:

  • Biotechnology
  • Immunology
  • Vaccinology

Background:

  • Messenger RNA (mRNA) vaccines represent a versatile platform for infectious disease prevention and cancer therapy.
  • Effective antigen expression, presentation, and immune stimulation are crucial for vaccine success.
  • Various delivery formats, including lipid nanoparticles and ex vivo dendritic cell methods, are employed.

Purpose of the Study:

  • To review recent advancements in mRNA vaccine formulation and delivery technologies.
  • To identify existing challenges and future directions in the field.
  • To highlight the impact of delivery materials and administration routes on vaccine efficacy.

Main Methods:

  • Overview of diverse mRNA vaccine delivery systems (e.g., lipid nanoparticles, polymers, peptides).
  • Discussion of formulation strategies and their influence on immune response.
  • Exploration of co-delivery approaches for enhanced synergistic effects.

Main Results:

  • Delivery materials and formulation methods significantly impact mRNA vaccine efficacy.
  • Administration route selection is a critical factor in vaccine performance.
  • Co-delivery of multiple mRNAs can lead to enhanced immunity in specific contexts.

Conclusions:

  • mRNA vaccine technology is rapidly evolving with ongoing innovations in formulation and delivery.
  • Addressing current challenges in delivery and formulation is key to unlocking the full potential of mRNA vaccines.
  • Future developments will likely focus on optimizing delivery systems and administration routes for broader applications.