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  • Title: Cells in 3D-reconstitutued eccrine sweat gland cell spheroids differentiate into gross cystic disease fluid protein 15-expressing dark secretory cells and carbonic anhydrase II-expressing clear secretory cells.
    Author: Li H, Chen L, Zhang M, Zhang B.
    Journal: Acta Histochem; 2017 Jul; 119(6):620-623. PubMed ID: 28689642.
    Abstract:
    Secretory coils of eccrine sweat glands are composed of myoepithelial cells, dark secretory cells and clear secretory cells. The two types of cells play important roles in sweat secretion. In our previous study, we demonstrated that the 3D-reconstituted eccrine sweat gland cell spheroids differentiate into secretory coil-like structures. However, whether the secretory coil-like structures further differentiate into dark secretory cells and clear secretory cells were is still unknown. In this study, we detected the differentiation of clear and dark secretory cells in the 3D-reconstituted eccrine sweat gland cell spheroids using the dark secretory cell-specific marker, GCDFP-15, and clear secretory cell-specific marker, CAII by immunofluorescence staining. Results showed that there were both GCDFP-15- and CAII-expressing cells in 12-week-old 3D spheroids, similar to native eccrine sweat glands, indicating that the spheroids possess a cellular structure capable of sweat secretion. We conclude that the 12-week 3D spheroids may have secretory capability.
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