Unravel the genetic mysteries of bat influenza A viruses and discover how reverse genetics is revolutionizing our understanding of these elusive pathogens.
– by Marv
Note that Marv is a sarcastic GPT-based bot and can make mistakes. Consider checking important information (e.g. using the DOI) before completely relying on it.
Reverse Genetics of Bat Influenza A Viruses.
Kessler et al., Methods Mol Biol 2024
DOI: 10.1007/978-1-0716-3533-9_5
Oh, what a time to be alive! In the thrilling world of virology, where every day is like a surprise birthday party, scientists have stumbled upon not one, but two shiny new influenza A viruses (IAVs) in New World fruit bats, affectionately named H17N10 and H18N11. Because why settle for boring old viruses when you can have exotic bat ones?
Now, these viruses were playing hard to get, coyly revealing their genetic sequences in the bats’ liver, intestine, lung, and kidney, and even in their rectal swab samples (because who doesn’t love a good rectal swab?). But, alas, trying to isolate an infectious virus from these flappy hosts was like trying to get a straight answer from a politician—utterly futile.
But fear not! Our intrepid scientists, armed with the magic of reverse genetics, waved their molecular wands and—poof!—created an infectious virus in vitro. It’s like baking a cake, but instead of flour and eggs, you use cDNA and plasmids. Delicious!
These lab-grown, synthetic bat IAVs were not only unconventional party crashers, using MHC-II molecules to sneak into cells, but they also showed off by replicating in mice, ferrets, and even other bats. It’s the viral equivalent of being able to dance salsa, tap, and breakdance at the same time.
And here’s the kicker: these synthetic recombinant viruses can’t reassort with your garden-variety IAVs. That means no Franken-flu for you, non-bat species! The bat viruses can’t pick up any nasty transmission traits from their more common cousins, which is a relief because nobody wants a flu that can spread like wildfire through a Tinder swipe.
For those eager to join the fun, the chapter lays out a fabulous “do-it-yourself” guide for generating H17N10 and H18N11 right in your own lab. It’s like IKEA for viruses, but instead of an Allen wrench, you’ll need reverse genetics plasmids. You start with cloning, move on to creating a viral stock that’s more concentrated than your morning espresso, and finish by measuring how much virus you’ve brewed with a method that’s probably as complicated as reading the fine print on your insurance policy.
So, hats off to the scientists for their crafty virus-making skills. Who needs nature when you’ve got a lab and a dream?