Hereditary cancer testing has changed dramatically over the past decade, reshaping how healthcare professionals diagnose and manage genetic risks. Initially, testing focused on specific genes like BRCA1 and BRCA2, linked to breast and ovarian cancers. These gene tests were quite limited, only looking at a small set of mutations…
A Brief History of APC The APC pathway was discovered in 1982 (more than 40 years ago!). APC is a tumor suppressor gene, meaning it helps the cell division process happen in a controlled way, which helps prevent tumor development. In 1991, Kinzler and Vogelstein discovered that pathogenic variants in the APC gene are…
One in every eight women will develop breast cancer in her lifetime.1 Considering there are 167.5 million women currently living in the United States,2 on a population level, that is a large number of women who will develop breast cancer. The vast majority of breast cancer cases are due to a combination of factors including, but not limited to:…
Every individual's genetic makeup is unique, containing the blueprint for their health, including susceptibility to diseases and potential response to treatments. But understanding your genes is like deciphering a complex code. DNA varies slightly from person to person, and interpreting the medical significance of those differences, or variants,…
Everyone has genetic variation….and lots of it. It’s part of what makes us each unique. Genetic variation is defined by differences in our own genome and a reference genome. (The fact that there is only one reference genome selected to compare to all of our collective, rich, human diversity is a topic for another post.) Another source of genetic…
Like most working moms, Michelle Majewski is busy. She spends her days juggling a career as a sales account executive, managing a household, and spending quality time with her husband, their son Owen, and their two dogs. Owen, now 4 years old, is a charmer. He also has extra medical needs, without a clear diagnosis or explanation. The search for…
Are uncertain results (variants of uncertain significance, or VUS) more likely in multi-gene panels (MGP) or whole exome- and genome-based (WES/WGS) tests? Ambry recently participated in a study led by the Medical Genomic Initiative (MGI) comparing the VUS rates for MGP and WES/WGS. The study, conducted across 19 clinical laboratories in North…
As a healthcare provider, you most likely hope for a genetic testing result that provides some kind of clear answer about what to do next. However, sometimes genetic testing will reveal a variant of unknown significance (VUS), which can be a challenge for both you and your patients. These variants are sort of “innocent until proven guilty”…
Actionable medical results are often a key component in deciding a patient’s medical management and specialized treatment options. However, some genetic test results can have unclear implications or Variants of Unknown Significance (VUS), which can often affect a clinician’s medical management plans for their patients. During the 2017 ACMG…
Ribonucleic Acid, otherwise known as RNA, is the messenger that carries instructions for controlling the synthesis of proteins from Deoxyribonucleic Acid (DNA). The central dogma of molecular biology states that “DNA makes RNA makes protein." However, for the proteins, which are the final product, to work properly, the RNA needs to be “edited,"…