Tumor upstaging in invasive melanoma is associated with changes in clinical management and worse prognosis.

Background: The clinical implications and prognostic outcomes associated with tumor upstaging in invasive melanoma have not been well established.

Objectives: To determine the frequency of tumor upstaging in invasive melanoma, identify risk factors, and assess its impact on clinical management and outcomes.

Methods: A retrospective study using data from a statewide Surveillance Endpoints and End Results-affiliated cancer registry between 2014 and 2018 was performed.

The Multifaceted Role of miR-21 in Pancreatic Cancers.

With the lack of specific signs and symptoms, pancreatic ductal adenocarcinoma (PDAC) is often diagnosed at late metastatic stages, resulting in poor survival outcomes. Among various biomarkers, microRNA-21 (miR-21), a small non-coding RNA, is highly expressed in PDAC. By inhibiting regulatory proteins at the 3' untranslated regions (UTR), miR-21 holds significant roles in PDAC cell proliferation, epithelial-mesenchymal transition, angiogenesis, as well as cancer invasion, metastasis, and resistance therapy.