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Related Concept Videos

Conjugated Proteins02:50

Conjugated Proteins

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Simple proteins and protein complexes contain only amino acids. In contrast, many other proteins, called conjugated proteins, covalently bond with non-protein moieties.
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
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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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Preclinical Development: Overview01:28

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Preclinical development consists of a series of tests that ensure the safety and efficacy of a new therapeutic compound before it is tested in humans. There are four main phases to this process. First, safety pharmacology tests are conducted to ensure the drug does not produce any acutely harmful effects. These tests examine parameters such as bronchoconstriction, cardiac dysrhythmias, blood pressure changes, and ataxia. Next, preliminary toxicological testing is performed to determine the...
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Related Experiment Video

Updated: Dec 8, 2025

Production of a SARS-CoV-2 Virus-Like-Particle System to Investigate Viral Life Cycles In Vitro
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Production of a SARS-CoV-2 Virus-Like-Particle System to Investigate Viral Life Cycles In Vitro

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Research progress and challenges to coronavirus vaccine development.

Peiwen Zhou1, Zonghui Li2, Linqing Xie3

  • 1Department of Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University, Guangzhou, China.

Journal of Medical Virology
|September 16, 2020
PubMed
Summary

Developing vaccines against pathogenic coronaviruses (CoVs) is crucial for global health. This review examines current human CoV vaccine candidates and challenges in their development, including understanding transmission and immune responses.

Keywords:
animal modelcoronavirusreceptor-binding domainspike proteinvaccine

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Area of Science:

  • Virology
  • Immunology
  • Vaccinology

Background:

  • Coronaviruses (CoVs) are single-stranded, positive-sense RNA viruses that cause significant human respiratory and intestinal diseases.
  • These viruses pose a substantial threat to global public health, necessitating the development of effective countermeasures.
  • Existing knowledge gaps regarding CoV transmission, pathogenesis, and immune responses hinder vaccine development.

Purpose of the Study:

  • To review human vaccine candidates for coronaviruses (CoVs) across all developmental stages.
  • To explore viral characteristics, molecular epidemiology, and immunology relevant to CoV vaccine development.
  • To identify current obstacles and challenges in the research and development of CoV vaccines.

Main Methods:

  • Literature review of scientific publications on coronaviruses and vaccine development.
  • Analysis of data on human vaccine candidates in various stages of development.
  • Synthesis of information on viral properties, epidemiology, and immunological aspects of CoVs.

Main Results:

  • Multiple human coronavirus (CoV) vaccine candidates are in development.
  • Key challenges include incomplete understanding of virus transmission, pathogenesis, and host immune responses.
  • The absence of suitable animal models presents a significant hurdle for preclinical testing.

Conclusions:

  • Safe and effective coronavirus (CoV) vaccines are critical for public health.
  • Further research is needed to address knowledge gaps in CoV biology and immunology.
  • Overcoming developmental challenges is essential for advancing CoV vaccine candidates.