GENETICS AND MOLECULAR MUTATIONS IN BREAST CANCER

Main Article Content

Saliha Khalid
Tabinda Razzaq
Afriaz Khan
Sadia Afzal
Shiv Ram Ashraf
Laraib Zafar
Summayya Maryam
Kashif Nawaz
Abbas Shahid

Keywords

Breast cancer, BRCA, Family history, genetics, Oncogenes, Vaccines, mRNA therapeutics

Abstract

Breast cancer (BC) is still the most commonly occurring malignancy in women and it poses a formidable public health challenge worldwide. It comprises a group of molecularly heterogeneous diseases in patients with a family history and/or suggestive personnel, and a predisposing gene is identified in <30% of patients in this type of malignancy. About 25% of heritable cases are due to a mutation in one of the few identified rare, but highly penetrant genes (BRCA1, BRCA2, PTEN, TP53, CDH1, and STK11), which confer up to 80% lifetime risk of BC. Additionally, 2%–3% of BC cases are due to a mutation in moderate-penetrance gene (e.g. CHEK2, BRIP1, ATM, and PALB2), and each gene is associated with a twofold increase in risk. BCs can begin in different areas of the breast, such as the ducts, the lobules, or the tissue in between. Within the large group of diverse breast carcinomas, there are various denoted types of BC based on their invasiveness relative to the primary tumor sites. For treatment of BCs, personalized cancer vaccination strategy can be an effective approach to trigger a broad-based antitumor response that is both beneficial and relevant to individual cancer patients. However, mRNA provides a template for the synthesis of any given protein, its fragment and lends itself to a broad range of pharmaceutical uses, including cancer immunotherapy. With the ease of rapid, large scale manufacturing and production, mRNA is ideally poised not only for off-the shelf cancer vaccines but also for personalized neoantigen vaccination. This review provides a comprehensive survey of the genetics, molecular mutations, and state-of-the-art information on vaccine-based therapeutics for BC.

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