mRNA Works Differently Than We Thought (and That’s Good)
Recent research reveals that mRNA vaccines may operate differently than previously thought, with implications for their effectiveness. Scientists have discovered that mRNA can enter nonimmune cells, such as muscle cells, to elicit an immune response. This new understanding could lead to improved therapies and a reevaluation of how mRNA vaccines function.
- ▪A new study indicates that mRNA vaccines can activate the immune system by entering muscle cells, not just immune cells.
- ▪Turning off mRNA expression in muscle cells reduced T-cell responses, while doing so in liver cells increased T-cell expression.
- ▪The findings challenge the long-held belief that mRNA must enter dendritic cells to be effective in inducing an immune response.
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Scientists may have been wrong about mRNA vaccines — and they’re thrilled.While mRNA vaccines are already proven safe and effective, scientists are just now uncovering new details about how they work. A new study finds they can bring about a response by entering nonimmune cells, such as muscle cells, challenging the dogma that mRNA must enter immune cells (dendritic cells) to be effective.The findings, along with other emerging research, suggest mRNA is more versatile than scientists realized — capable of bypassing traditional immune pathways and using a variety of cells to jump-start the immune system.
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