Periderm and IRF6, the Non-Stick Coating on the Embryo
Take the reading one piece at a time. For each piece: read it once, underline the sentence that says what happens, then look up any word in the list. Tap a word to see its definition.
Piece 2 of 2
With IRF6 working (normal), the periderm forms a non-stick layer, surfaces only join where they should, and the palate elevates and fuses. With IRF6 broken or deleted in the mouse, the periderm fails to differentiate, oral surfaces become sticky and form abnormal intraoral adhesions (palate stuck to tongue, upper jaw stuck to lower), and those glued surfaces physically block the palate shelves from lifting, giving cleft palate (PMID:26589921). In zebrafish, a dominant-negative form makes periderm cells lose their hold and the embryo literally ruptures at the surface, dramatic visual proof that the periderm is a real adhesion barrier (PMID:26692521).
Reading the Research
- Skim the title and abstract first to get the gist.
- Circle the one sentence that states the main claim.
- Box the evidence the authors give for that claim.
- Mark one sentence that confuses you, and move on.
Now put it together: In one or two sentences, say what this whole reading is telling you about Mateo. Then go back to the lesson and fill in the guided notes.