Additionally, the Akt (also known as protein kinase B) and mitogen-activated protein kinase (MEK)/extracellular-signal regulated kinase (ERK) intracellular signaling routes, together with signal transducer and activator of transcription (STAT) proteins and SMAD transcription factors have been described as key molecular pathways that play a role in the mechanisms leading to the development of endometriosis [82,83,84], as reviewed by Aznaurova et al. [85]; McKinnon et al. [86]; Riccio et al. [87]; Patel et al. [47]; and Zhang et al. [48]. Here, AKT1 is linked to endometriosis.