Correlation between pancreatic mast cells and the low grade inflammation in adipose tissue of experimental prediabetes |
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Authors: | Ahmed A.M. Abdel-Hamid Alaa El-Din L. Firgany |
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Affiliation: | 1. Department of Histology and Cell Biology, Faculty of Medicine, Mansoura University, Egypt;2. Department of Basic Medical Science, Horus University, Egypt |
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Abstract: | The role of mast cells (MCs) in prediabetes (Pre-DM) is not clearly elucidated. In the current study rats (n?=?22 each) were divided equally into; control and Pre-DM (received high fat diet, HFD) groups. Samples from pancreas as well as from visceral adipose tissue (VAT) were studied for the consequent changes.We detected a significantly increased mast cell count (MCC) in the pancreas of Pre-DM compared to that of control. Frequent degranulation of MC granules was observed in Pre-DM. VAT of the Pre-DM had significantly increased (p?0.05) macrophages (CD68+) and mast cells (tryptase+) compared to that of the control. A significant increase (p?0.05) in CD68 mRNA expression as well as in the level of IL-1 β, IL-6, TNF-α and TGF- β1 was detected in VAT of Pre-DM with a significant positive correlation (p?0.05) with the MCC. All these findings may indicate a potential role of MC in the low grade inflammation of VAT in Pre-DM. |
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Keywords: | Mast cells Prediabetes Insulin resistance β-cells Islets neogenesis Tryptase Macrophages Adipose tissue |
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