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Germline Variant With Somatic Amplification in a Woman With Inflammatory Diseases and Myelodysplastic Syndrome.

Ann Intern Med

January 2025

Center for Hematology and Regenerative Medicine, Department of Medicine Huddinge, Karolinska Institutet, and Department of Hematology, Karolinska University Hospital, Stockholm, Sweden.

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Germline variants detected by multigene panel testing in patients with suspected hereditary breast cancer.

Surg Today

January 2025

Department of Surgery, Division of Breast and Endocrine Surgery, School of Medicine, Hyogo Medical University, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan.

Purpose: To clarify the status of multigene panel testing for suspected hereditary breast cancer in our institute, and disclose the characteristics of the variants detected.

Methods: This was a retrospective study of individuals who underwent next-generation sequencing-based multigene panel testing at our institute to investigate hereditary genetic variants for suspected hereditary breast cancer.

Results: We identified 36 women who underwent multigene panel testing: 8 (22.

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Lynch syndrome is a genetic condition predisposing to cancer, particularly colorectal cancer and endometrial cancer, due to germline mutations in MisMatch Repair genes. More rarely, Lynch syndrome is the result of a constitutional promoter methylation. This review summarizes the current knowledge about the role of this epigenetic mechanism in the Lynch syndrome.

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Colorectal cancer in Lynch syndrome families: consequences of gene germline mutations and the gut microbiota.

Orphanet J Rare Dis

January 2025

Senior Department of Gastroenterology, The First Medical Center of Chinese PLA General Hospital, Beijing, 100853, China.

Background: Lynch syndrome (LS)-associated colorectal cancer (CRC) always ascribes to pathogenic germline mutations in mismatch repair (MMR) genes. However, the penetrance of CRC varies among those with the same MMR gene mutation. Thus, we hypothesized that the gut microbiota is also involved in CRC development in LS families.

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Multigene panel tests (MGPTs) revolutionized the diagnosis of Lynch syndrome (LS), however noncoding pathogenic variants (PVs) can only be detected by complementary methods including whole genome sequencing (WGS). Here we present a DNA-, RNA- and tumor tissue-based WGS prioritization workflow for patients with a suspicion of LS where MGPT detected no LS-related PV. Among the 100 enrolled patients, MGPT detected 28 simple PVs and an additional 3 complex PVs.

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