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@orchardlab.bsky.social

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Drawing of a cell showing mitochondria in the cytoplasm, with murine norovirus virions exiting the cell through damage to the plasma membrane. Image credit: Valerie Rodriguez Irizarry

Drawing of a cell showing mitochondria in the cytoplasm, with murine norovirus virions exiting the cell through damage to the plasma membrane. Image credit: Valerie Rodriguez Irizarry

Photo of Valerie Rodriguez Irizarry

Photo of Valerie Rodriguez Irizarry

Valerie Rodriguez Irizarryโ€™s tour de force paper on murine norovirus adaptation/egress is now out in peer-reviewed form โ€ช@plosbiology.orgโ€ฌ. It highlights the power of forward genetics in virology research. ๐Ÿงต 1/10 journals.plos.org/plosbiology/...

25.06.2025 13:36 โ€” ๐Ÿ‘ 32    ๐Ÿ” 13    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

For those interested, Mikayla elected to join UTSW Graduate school where I predict she will have an outstanding PhD!

27.05.2025 20:24 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Mikayla did all of this while part of the UT Southwestern-Postbaccalaureate to PhD (PB2PHD) Program. I highly recommend those that want to go to graduate school but need more experience (both bench and coursework) to consider PB2PHD! Thanks @ajdiazphd.bsky.social for leadership on the PB2PHD

27.05.2025 20:24 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

We have found the MNV-HiBiT viruses excellent and faithful reporters of MNV replication. We highly recommend this system for its speed, fidelity, and robust readouts! We also have had great success generating other viruses with HiBiT insertions, so worth a try in your favorite virus as well.

27.05.2025 20:24 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Mikayla inserted the small HiBiT tag into the MNV genome. The HiBiT fragment can complement with the LgBiT fragment and form a functional nanoluciferase. She showed that this works in cell lysates and tissue lysates with great dynamic range and sensitivity. No need for engineered cell lines!

27.05.2025 20:24 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Preview
Development of a replication competent murine norovirus reporter system Author summary Colloquially known as โ€œthe stomach bug,โ€ human norovirus is a leading cause of foodborne illness worldwide. Despite its prevalence, there are no approved therapeutics or vaccines agains...

Excited to share the work of Mikayla Olson in the lab making a replication competent reporter virus for murine norovirus. journals.plos.org/plospathogen...

27.05.2025 20:24 โ€” ๐Ÿ‘ 9    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Preview
Membrane asymmetry facilitates murine norovirus entry and persistent enteric infection Norovirus tropism depends partly on entry receptors, but the role of cellular lipids in viral entry remains unclear. This study shows that TMEM30a-mediated lipid asymmetry is crucial for murine norovi...

Further reading to the great talk from @orchardlab.bsky.social just now at #GRCviruses

Membrane asymmetry facilitates MNV entry and persistent infection
@plosbiology.org
#Virosky ๐Ÿงช
journals.plos.org/plosbiology/...

21.05.2025 08:20 โ€” ๐Ÿ‘ 11    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Excited to have this story published @plosbiology.org. We were surprised to find lipids are important for entry of a non-enveloped virus and that TMEM30a is important for enteric infection of murine norovirus!

23.04.2025 14:13 โ€” ๐Ÿ‘ 7    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

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