How to Fight COVID-19... with a Virus

TL;DR

Scientists are exploring gene therapy as a potential solution for COVID-19, using viruses as a tool to introduce genetic instructions into cells and teach them how to make viral antigens. Adeno-associated viruses (AAVs) are the preferred DNA vehicle for this therapy. However, there are uncertainties and potential side effects associated with this approach.

Transcript

This episode was filmed on May 29th, 2020. If we have more recent episodes on the COVID-19 pandemic, we’ll include them in the description. [♪ INTRO] Researchers have been working on vaccine candidates for COVID-19 for months now. Some of their work looks like traditional vaccine development, albeit on a super sped up timeline. But other research g... Read More

Key Insights

• 🛀 Gene therapy using AAVs shows potential as a novel approach to combating COVID-19.
• 👨‍🔬 Convalescent plasma and traditional vaccine methods are also being explored in the search for COVID-19 treatments.
• 👍 AAV-based gene therapy has been approved for other diseases and could potentially speed up the implementation for COVID-19.
• 😒 The use of viruses as tools in gene therapy highlights their efficiency in delivering genetic material into host cells.
• 🚚 AAVs offer advantages due to their ability to deliver genetic payloads without causing disease or replicating.
• 🧘 Gene therapy using AAVs would not permanently edit germ cells and would only provide temporary protection against COVID-19.
• 🍉 The long-term side effects of gene therapy and its potential impact on DNA manipulation are still not fully understood.

Questions & Answers

Q: How does gene therapy use viruses to treat COVID-19?

Gene therapy involves using viruses, particularly adeno-associated viruses (AAVs), to deliver genetic instructions into cells and teach them how to produce viral antigens. This helps the immune system recognize and defend against the virus.

Q: Is gene therapy a permanent solution for COVID-19?

No, gene therapy using AAVs would only provide temporary protection against COVID-19. The genetic changes introduced by the therapy are unlikely to last a lifetime and won't be passed down to future generations.

Q: What are the potential side effects of gene therapy for COVID-19?

While gene therapy using AAVs appears safe based on current knowledge, there are still uncertainties about potential long-term side effects when directly manipulating DNA. More research is needed to fully understand the risks.

Q: What are the challenges associated with gene therapy for COVID-19?

One challenge is delivering the genetic code into cells, as RNA can break down quickly. Another challenge is finding an AAV that can effectively target airway cells for COVID-19 treatment. Additionally, the cost of AAV-based therapy for rare genetic diseases is currently high, but it may be lower for a COVID-19 therapy due to a larger market.

Summary & Key Takeaways

• Researchers are developing vaccine candidates for COVID-19, some of which involve traditional methods while others explore gene therapy.

• Gene therapy involves using viruses, such as adeno-associated viruses (AAVs), to introduce genetic instructions into cells and teach them how to make viral antigens.

• AAV-based gene therapy has already shown promise in infiltrating human respiratory cells in culture, but human trials are yet to be conducted.