TY - JOUR KW - Biomedical Engineering KW - Organogenesis KW - Skin models AU - Hasan Erbil Abaci AU - Abigail Coffman AU - Yanne Doucet AU - James Chen AU - Joanna Jacków AU - Etienne Wang AU - Zongyou Guo AU - Jung U. Shin AU - Colin A. Jahoda AU - Angela M. Christiano AB - Human skin constructs (HSCs) have the potential to provide an effective therapy for patients with significant skin injuries and to enable human-relevant drug screening for skin diseases; however, the incorporation of engineered skin appendages, such as hair follicles (HFs), into HSCs remains a major challenge. Here, we demonstrate a biomimetic approach for generation of human HFs within HSCs by recapitulating the physiological 3D organization of cells in the HF microenvironment using 3D-printed molds. Overexpression of Lef-1 in dermal papilla cells (DPC) restores the intact DPC transcriptional signature and significantly enhances the efficiency of HF differentiation in HSCs. Furthermore, vascularization of hair-bearing HSCs prior to engraftment allows for efficient human hair growth in immunodeficient mice. The ability to regenerate an entire HF from cultured human cells will have a transformative impact on the medical management of different types of alopecia, as well as chronic wounds, which represent major unmet medical needs. BT - Nature Communications DA - 2018-12-13 DO - 10.1038/s41467-018-07579-y IS - 1 LA - en N2 - Human skin constructs (HSCs) have the potential to provide an effective therapy for patients with significant skin injuries and to enable human-relevant drug screening for skin diseases; however, the incorporation of engineered skin appendages, such as hair follicles (HFs), into HSCs remains a major challenge. Here, we demonstrate a biomimetic approach for generation of human HFs within HSCs by recapitulating the physiological 3D organization of cells in the HF microenvironment using 3D-printed molds. Overexpression of Lef-1 in dermal papilla cells (DPC) restores the intact DPC transcriptional signature and significantly enhances the efficiency of HF differentiation in HSCs. Furthermore, vascularization of hair-bearing HSCs prior to engraftment allows for efficient human hair growth in immunodeficient mice. The ability to regenerate an entire HF from cultured human cells will have a transformative impact on the medical management of different types of alopecia, as well as chronic wounds, which represent major unmet medical needs. PY - 2018 EP - 5301 T2 - Nature Communications TI - Tissue engineering of human hair follicles using a biomimetic developmental approach UR - https://www.nature.com/articles/s41467-018-07579-y VL - 9 Y2 - 2024-07-30 SN - 2041-1723 ER -