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We investigated the metabolic stability of four cell penetrating peptides (CPPs), namely SAP, hCT(9-32)-br, [Pα] and [Pβ], when in contact with either subconfluent HeLa, confluent MDCK or Calu-3 epithelial cell cultures. Additionally, through analysis of their cellular translocation efficiency, we evaluated possible relations between metabolic stability and translocation efficiency. Metabolic degradation...
Purpose. To investigate whether cell penetrating peptides (CPP) derived from human calcitonin (hCT) possess, in addition to cellular uptake, the capacity to deliver their cargo through epithelial barriers. Methods. Cellular uptake of hCT(9-32) and permeation of six hCT-derived peptides, namely, hCT(9-32), hCT(12-32), hCT(15-32), hCT(18-32), hCT(21-32), and a random sequence of hCT(9-32) were...
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