Publications by authors named "G Tamma"

Celiac disease - a prevalent food intolerance - requires strict adherence to a lifelong gluten-free (GF) diet as the only effective treatment. However, GF products often lack soluble fibre and have a high glycaemic index. Consequently, there is a pressing need in the food industry to develop GF products with improved nutritional profiles.

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The small Rho GTP-binding proteins are important cell morphology, function, and apoptosis regulators. Unlike other Rho proteins, RhoB can be subjected to either geranylgeranylation (RhoB-GG) or farnesylation (RhoB-F), making that the only target of the farnesyltransferase inhibitor (FTI). Fluorescence resonance energy transfer experiments revealed that RhoB is activated by hyperosmolarity.

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Article Synopsis
  • High urinary calcium levels disrupt vasopressin's action by activating the Calcium-Sensing Receptor (CaSR), which leads to impaired aquaporin-2 (AQP2) trafficking in the kidneys.
  • In CaSR knock-in mice, mimicking autosomal dominant hypocalcaemia, there is a significant decrease in AQP2 levels and an increase in its phosphorylation at a specific site associated with degradation, along with elevated levels of related signaling proteins.
  • Treatment with the calcilytic JTT-305 enhances AQP2 expression and reduces the levels of AQP2-targeting miRNA137, suggesting a potential therapeutic avenue for addressing the complications of autosomal dominant hypocalca
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The deletion of phenylalanine at position 508 (F508del) produces a misfolded CFTR protein that is retained in the ER and degraded. The lack of normal CFTR channel activity is associated with chronic infection and inflammation which are the primary causes of declining lung function in Cystic Fibrosis (CF) patients. Moreover, LPS-dependent oxidative stress downregulates CFTR function in airway epithelial cells.

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