Natural Killer Cells: a Fascinating Evolutionary Arms Race

NK cells are part of the immune system and they perform a clever countermeasure to a viruses clever counter measure to our immune system's clever countermeasure to a virus's clever countermeasure to our immune system's clever countermeasure! The story also covers Killer T cells or Cytotoxic T cells.

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[SteveMould]

I've got another video coming about how Killer T Cells are made. It's crazy.

[x--.]

Who's a good Killer-T? Who's a good Killer-T cell? YOU, you a good Killer-T cell. So good.

[TheHookUp]

As a high school biology teacher I always watch your videos with a shred of terror that I have been teaching things the wrong way for 15 years. Marking myself safe on this one, well done.

[samwalker]

The animations are excellent but I kinda love the lofi live action representations, like the vision molecule video 😂

[NonExistentAlex]

My therapist: Steve Mould in a bag isn't real, he can't hurt you.

[DoctorX]

Cell Steve is the best thing to happen to this channel

[iitool]

Dude, there is a dog in your circulatory system. I dont think you should be so worried about a virus right now

[mjames]

When is Killer T Cell dropping his next album?

[AaronRotenberg]

Someone please clip 3:18-3:27 and upload it with no context.

[QuietSker]

Can you do a similar video on allergic reactions? I've had food allergies for years and I've had several scary close calls (or at least that's how I perceived them) only to be looked at funny for showing up at urgent care. The information you've presented like this at such a simple-to-understand but also really in-depth level would (A) raise awareness for people with allergies and their experiences and (B) help people with allergies FIFO (find out before they freak out) which can save money (not having to visit a hospital for small reactions) or save energy spent worrying. Thanks for your amazing
videos!

[diogonunes]

"I am not going mad"
"This process is happening all the time inside a healthy cell"

[PaulASmyers]

Dog, "Oh no. The human that provides food has gone mad. I'm totally screwed."

[BrigadierPickles]

I love how you cut it so the video at 00:00 is instantly you talking about the video. You cannot get any further away from the Wadsworth Constant.

[britishidiots]

The immune system and the brain - the two most complicated systems of the human body, three years into a degree in biomedical sciences and I’m still completely baffled by the both of them

[Talaxianer]

8:45 How does the natural killer cell detect that the number of MHC molecules is small?

[Christopherfife]

What about the poor old dendritic cell? That CD8+ T cell needs priming. Loved the video, as always. A great job at simply communicating complex information.

[JakubH]

wow :O I am always amazed how such a complicated mechanisms evolved just by natural selection

[defaultmesh]

6:22 i don't know why i expected you to say "it can no longer respawn"

[NicksAreOverrated]

Small correction for 1:32 - Ribosomes do not read DNA but mRNA which is based on your DNA but slightly different

[CircuitrinosOfficial]

@6:01 You should have used a dog treat for this one.