Indication

Neuregulin 1 gene fusion positive pancreatic adenocarcinoma

Neuregulin 1 (NRG1) gene fusion–positive pancreatic adenocarcinoma is an aggressive malignancy arising from the exocrine tissue of the pancreas, characterized by chromosomal rearrangements involving the *NRG1* gene. Read more about Neuregulin 1 gene fusion positive pancreatic adenocarcinoma

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About Neuregulin 1 gene fusion positive pancreatic adenocarcinoma.

Neuregulin 1 (NRG1) gene fusion–positive pancreatic adenocarcinoma is an aggressive malignancy arising from the exocrine tissue of the pancreas, characterized by chromosomal rearrangements involving the *NRG1* gene.

In these tumors—which disproportionately occur within the subset of pancreatic cancers lacking canonical *KRAS* mutations—the resulting chimeric fusion proteins retain the epidermal growth factor–like domain of NRG1.

This chimeric ligand aberrant-activates HER3 (ERBB3) and induces HER2/HER3 heterodimerization, triggering persistent downstream oncogenic signaling via the MAPK and PI3K/AKT pathways that drives unchecked cell survival and tumor growth.

Patients typically present with symptoms of advanced pancreatic malignancy, such as abdominal or back pain, obstructive jaundice, unexplained weight loss, and severe digestive dysfunction.

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