Can We Fix the Code?
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 1 of 2
Three published results show different ways to correct a clefting defect, all in models. Gene-dosage or pathway modulation: giving pregnant mice a small-molecule Wnt agonist (a Dkk inhibitor) to compensate for Pax9 loss made the palatal shelves grow and fuse in utero, a preclinical in-animal result. Protein replacement: adding recombinant TGF-beta-3 protein to cleft palate tissue grown in a dish made shelves that could not fuse, fuse, a preclinical ex-vivo result. Gene or mRNA add-back: putting an Irf6 transgene into mice and injecting irf6 mRNA into zebrafish gave a partial rescue, with survival and skin improved in mice (cleft palate persisted) and the downstream target esrp1 restored in fish.
Piece 2 of 2
Two distinctions tell you what each result really means. Preclinical means tested in animals or in a dish; clinical means tested in humans. Every strategy here is preclinical, and there is no clinical gene therapy for human CL/P in the literature. A somatic edit changes only the patient's own body cells and is not inherited; a germline edit changes egg, sperm, or embryo cells and is passed to future generations. No somatic gene therapy and no germline gene editing for human CL/P exists.
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.