Investigating the Pathogenicity of Uncommon KRAS Mutations and Their Association with Clinicopathologic Characteristics in Patients with Colorectal Cancer.

Kirsten rat sarcoma viral oncogene homolog (KRAS) somatic mutations occur in 30% to 40% of patients with colorectal cancer (CRC). These were thought to equally affect prognosis and resistance to anti-epidermal growth factor receptor agents; however, recent data show the activity of KRAS-G12C and pan-RAS inhibitors. The effects of uncommon KRAS (uKRAS) variants are largely unexplored.

A Comparative Study of Methyl-BEAMing and Droplet Digital PCR for Gene Promoter Hypermethylation Detection.

is responsible for the direct repair of O6-methylguanine lesions induced by alkylating agents, including temozolomide. promoter hypermethylation is a well-established biomarker for temozolomide response in glioblastoma patients, also correlated with therapeutic response in colorectal cancer. The ARETHUSA clinical trial aims to stratify colorectal cancer patients based on their mismatch repair status.

The Role of Liquid Biopsy in Gastroenteropancreatic Neuroendocrine Neoplasms.

Neuroendocrine neoplasms incidence has been increasing, arising the need for precise and early diagnostic tools. Liquid biopsy (LB) offers a less invasive alternative to tissue biopsy, providing real-time molecular information from circulating tumour components in body fluids. The aim of this review is to analyse the current evidence concerning LB in NENs and its role in clinical practice.

Prognostic and Predictive Roles of HER2 Status in Non-Breast and Non-Gastroesophageal Carcinomas.

The oncogene , also known as or , is located on chromosome 17 (q12). It encodes a tyrosine kinase receptor, the human epidermal growth factor receptor 2 (HER2), involved in neoplastic proliferation, tumor angiogenesis, and invasiveness. Over the past years, the introduction of various anti-HER2 therapies has significantly improved outcomes for patients with HER2-positive breast and gastroesophageal carcinomas.