We have developed a facile N-terminus helix-nucleating strategy using an unnaturally tethered aspartic acid (TD strategy). Relatively weak nuclear translocation efficiency of TD PERM limits its further biological applications. A potent peptide inhibitor of estrogen receptor α (ER-α) with significantly increased cellular uptake and cellular distribution was developed by cell penetrating peptide attachment. The resulted peptide conjugate showed selective toxicity towards estrogen receptor positive cell lines and induced decreased transcription of estrogen receptor α downstream genes.
Link: https://www.sciencedirect.com/science/article/pii/S1001841718301487?via%3Dihub