Journal: BMC Biotechnology
Article Title: A novel cell-penetrating peptide supports hair follicle growth through anti-inflammatory and growth factor–associated mechanisms in preclinical models
doi: 10.1186/s12896-026-01130-4
Figure Lengend Snippet: Screening process to determine peptides with hair-restoring properties. ( A ) Human Follicle Dermal Papilla Cell (HFDPCs) viability of over 200 cell-penetrating peptides, with EGF as the positive control. The red dots mark the peptides with the highest cell viability. ( B ) Western Blot results showing the upregulation of β-catenin and p-ERK proteins of 22 chosen peptides compared to the control. Peptide No.218 (in red rectangle) showed the highest expression level of β-catenin and p-ERK proteins, and was chosen for subsequent analyses. ( C ) Cell-penetrating capability of DualPep-ALO was evaluated using FITC-conjugated peptides in HFDPCs. Cells were treated with FITC-DualPep-ALO or FITC-TAT (2.5 µM, 2 h), followed by extensive washing and trypsinization to remove membrane-bound peptides. Intracellular fluorescence intensity was quantified by flow cytometry. Each experiment was performed three times
Article Snippet: HFDPCs were cultured in Human Follicle Dermal Papilla Cell Growth Medium (PromoCell, Heidelberg, Germany) supplemented with fetal calf serum, bovine pituitary extract, basic fibroblast growth factor, and insulin.
Techniques: Positive Control, Western Blot, Control, Expressing, Membrane, Fluorescence, Flow Cytometry