Immunolocalization patterns of histone-deacetylases in salivary glands of mice during postnatal development

• Published in: Acta histochemica Vol. 126; no. 2; p. 152144
• Main Authors: Yang, Chubo, Song, Xuejing, Kong, Jiaqi, Li, Huishu, Zhan, Yuanbo
• Format: Journal Article
• Language: English
• Published: Germany Elsevier GmbH 01.02.2024
• Subjects: Acinar cell; Duct cells; Expression pattern; Histone-deacetylases; Salivary gland; Salivary gland; Histone-deacetylases; Acinar cell; Expression pattern; Duct cells
• ISSN: 0065-1281; 1618-0372
• DOI: 10.1016/j.acthis.2024.152144

Histone-deacetylases (HDACs) are epigenetic modulators involved in the control of gene expression. No data are available on the expression or subcellular localization of HDACs in salivary glands. The present study aims to examine the subcellular distribution of HDACs in salivary glands during postnatal development. The major salivary glands of C57/BL6 mice were separately removed at 10, 25, 30,60 and 90 days after birth. Hematoxylin-eosin (H&E) and immunohistochemical staining were performed for HDACs. Gene Expression of HDACs in C57BL/6. NOD-Aec1Aec2 mice salivary glands during the development of Sjögren's syndrome-like illness were also analyzed by using the gene expression datasets (GSE 15640). In the mice salivary gland, HDACs were found to have different localization patterns at various stages of development (10, 25, 30, 60, and 90 days). Apart from HDAC6, ductal cells of salivary glands were the primary sites for HDAC localization. HDAC2, 8, 5, 10 and 11 were expressed at high levels in the salivary gland after birth while HDAC6 showed no expression during postnatal development. This suggests that these HDAC subtypes may have different roles in salivary gland function. In the context of Sjögren's syndrome-like illness, HDAC 2, 8 and 10 showed low expression while HDAC1, 6,5,3 and 11 had relatively high expression in the salivary gland. This study has provided an important reference for understanding the spatiotemporal-specific expression of HDACs in the salivary gland. These results offer new clues for the experimenters and hold promise for developing innovative therapeutic strategies for salivary gland-related diseases. •Mouse salivary glands show distinct patterns of histone deacetylases localization•Histone deacetylases are mainly found in the ductal cells of mouse salivary glands•Lack of histone deacetylase 6 expression in postnatal mouse salivary glands.