Lozano is recognised for her studies of the p53 tumour suppressor pathway, characterising the protein as a regulator of gene expression (transcription factor) and that is disturbed in many cancers.
She attended a private Catholic high school, Bishop Noll, up until her senior year, when her family moved to McAllen, Texas.
[5] Lozano's dissertation was titled Isolation, characterization and analysis of the gene encoding the Alpha 2 type IX collagen polypeptide.
She is also a professor at University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences.
[5] Lozano is recognised for her studies of the p53[8] tumour suppressor pathway, from characterising p53 as a transcriptional activator[9] to revealing the importance of two inhibitors of p53, Mdm2 and Mdm4.