Several lncRNAs (colorectal neoplasia differentially expressed-h (CRNDE-h), breast cancer anti-estrogen resistance 4 (BCAR4), mRNA keratin-associated protein 5-4 (KRTAP5-4), and mRNA melanoma antigen family A3 (MAGEA3) have also been found in higher amounts in serum exosomes, thus increasing the scope of using them as predictive as well as diagnostic molecules. The gene discussed is MAGEA3; the disease is breast carcinoma.