I'm currently writing a small literature review on tgf-b and SMAD signalling in cancer for uni rn
And I'm really confused why this one paper's talking about how miR-520h induces the tgf-b/smad7 pathway but also binds to and suppresses smad7
Like why on earth is it activating the tgf-b/smad7 pathway, a pathway that stops stuff like the epithelial mesenchynal transition, if it's just going to bind to smad7 anyway???
Worst thing is, I can't find any other papers on why this actually happens
Cell signalling pathways was the worst part of microbial genetics for me. Luckily I don't have to deal with that anymore as my day to day is digital PCR and NGS.