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. 2024 Jun 27;13(13):1115. doi: 10.3390/cells13131115

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© 2024 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Immunostaining for Tβ4 in salivary glands. (A) Immunostaining for Tβ4 in fetal minor salivary glands shows granular reactivity for the peptide in tubular cells and in the surrounding myxoid stroma (Magnification ×100). (B) Granular immunoreactivity for Tβ4 in the cytoplasm of developing tubular cells in submandibular fetal glands. The peptide is also expressed in the lumen (arrowhead) of developing glands. (Magnification ×250). (C) Fetal parotid gland showing immunostaining for Tβ4 in tubular cells undergoing branching morphogenesis. (Magnification ×250).