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Related Concept Videos

Vaccine Production01:23

Vaccine Production

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Vaccine production involves a sequence of upstream and downstream processes to generate a safe and effective immunological product. It begins with cultivating microorganisms, such as viruses or bacteria, to obtain antigenic material. For viral vaccines, mammalian host cells are grown in bioreactors and subsequently infected with the target virus. The virus replicates within the host cells, which are lysed to release viral particles. This lysate is then clarified through filtration or...
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Vaccines01:21

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Vaccines are among the most effective tools in preventive medicine, designed to prepare the immune system to recognize and combat infectious agents. By introducing antigens—substances that the immune system identifies as foreign—vaccines stimulate an adaptive immune response that leads to immunological memory. This immunological memory enables the body to mount a faster and more effective response upon future exposures to the actual pathogen.Vaccines can be categorized based on the...
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Microorganisms in Medicine and Therapeutics01:29

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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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Drug Delivery Systems: Different Types01:27

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Conventional oral drug products, termed immediate-release (IR) formulations, are engineered to promptly release their active pharmaceutical ingredient (API) upon ingestion, typically in tablets or capsules. This rapid release often results in swift drug absorption and consequent pharmacodynamic effects, although the timing and intensity can vary depending on the drug's properties. Prodrugs within these formulations require metabolic conversion to activate their pharmacodynamic effects,...
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Modified-Release Drug Delivery Systems: Overview01:19

Modified-Release Drug Delivery Systems: Overview

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Modified-release dosage forms are designed to address the limitations of drugs with short biological half-lives. These forms maintain stable therapeutic drug concentrations over extended periods, reducing the need for frequent dosing. A consistent drug level helps minimize peak-trough fluctuations, which can reduce adverse effects, lower the risk of drug resistance, and improve overall treatment effectiveness.One common type of modified-release form is the extended-release (ER) formulation. ER...
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Production of Near-Infrared Sensitive, Core-Shell Vaccine Delivery Platform
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Vaccine Delivery Methods into the Future.

Vasso Apostolopoulos1

  • 1Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, Melbourne, VIC 3021, Australia. vasso.apostolopoulos@vu.edu.au.

Vaccines
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Numerous vaccine delivery methods have been developed, showing strong immune responses in studies. These advanced vaccine delivery systems offer guidance for future immunotherapeutic development against various diseases.

Keywords:
antigen deliveryimmunotherapyvaccinevaccine delivery

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Area of Science:

  • Vaccinology and immunology
  • Biotechnology and drug delivery systems

Background:

  • Over the past 25 years, diverse vaccine delivery systems have emerged, demonstrating efficacy in pre-clinical and clinical settings.
  • Key delivery platforms include adjuvants, liposomes, nanoparticles, virus-like particles, and viral vectors, among others.

Discussion:

  • The selection of an appropriate vaccine delivery method is critical for eliciting robust immune responses.
  • Comparing the immunogenicity and safety profiles of different delivery systems is essential for therapeutic development.

Key Insights:

  • Advanced vaccine delivery technologies like nanoparticles, viral vectors, and targeted receptor delivery enhance immunogenicity.
  • Adjuvants such as aluminum hydroxide and QS21, alongside novel platforms like dendrimers and immunostimulatory complexes (ISCOMs), are crucial for potent immune stimulation.
  • Innovative methods including DNA delivery, electroporation, and dendritic cell targeting represent significant progress in vaccine formulation.

Outlook:

  • Continued research into novel vaccine delivery platforms will accelerate the development of effective immunotherapeutics.
  • Optimizing these delivery systems holds promise for combating infectious diseases and cancer.