Involvement of prolactin in breast cancer: redefining the molecular targets11Abbreviations: PRL, prolactin; PRLR, PRL receptor; GH, growth hormone; JAK, Janus kinase; STAT, signal transducer and activator of transcription; MAPK, Mitogen–activated protein kinase; PI 3-K, Phosphoinositide 3-kinase; FAK, focal–adhesion kinase; PKC, protein kinase C; SOCS, suppressor of cytokine signaling; PCD, programmed cell death. | Publicación