IMMUNOLOGY2026™ Conference Recordings For Attendees-Beyond the immune system: countermeasures for mirror life

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Video Summary

Dr. Brian Wang discussed medical countermeasures for a hypothetical mirror-bacterial outbreak, focusing on antibiotics and vaccines. He explained that some achiral or racemic antibiotics, like ciprofloxacin and sulfamethoxazole-trimethoprim, might work “off the shelf,” but most current antibiotics are chiral and likely ineffective against mirror bacteria. In a 2026 study, enantiomers of several antibiotics were tested and found largely inactive, suggesting many existing drugs would not translate well.<br /><br />He then covered the idea of developing anti-mirror antibiotics by synthesizing enantiomers of current drugs, but noted major hurdles: safety and pharmacokinetic testing would still be needed, and manufacturing would be difficult because many antibiotics are made by biosynthesis, not simple chemical synthesis.<br /><br />For vaccines, he said mirror antigens alone are unlikely to trigger strong immunity, but conjugating them to natural carrier proteins might help. Their preliminary work showed D-peptide conjugates could induce antibody responses in mice, especially with adjuvant, though functional protection remains unproven.<br /><br />The panel discussion afterward emphasized key unknowns: whether innate immune receptors like TLRs recognize mirror molecules, whether antibodies would trigger complement or phagocytosis effectively, and how to model mirror antigens safely without advancing mirror-life development. The broader concern was that even if countermeasures are possible, scaling them for humans, agriculture, and ecosystems would be extremely difficult.

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Date April 16, 2026 12:45 PM - 2:15 PM

Room 153C

Session Immune responses to mirror molecules and organisms, Sponsored by the Mirror Biology Dialogues Fund (MBDF)

Speaker Brian Wang

Track Innate Immune Responses and Host Defense: Cellular Mechanisms (INC)

Year 2026

Keywords

mirror-bacterial outbreak

antibiotics

vaccines

enantiomers

achiral drugs

D-peptide conjugates

innate immunity

complement system

April 16, 2026 12:45 PM - 2:15 PM

153C

Immune responses to mirror molecules and organisms, Sponsored by the Mirror Biology Dialogues Fund (MBDF)

Brian Wang

Innate Immune Responses and Host Defense: Cellular Mechanisms (INC)

2026