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Faculty Profile Last Modified Time: 12:50:00 PM Mon, 18 Jul 2022   Contact Information Sharon Plon Associated Profiles  Professor, Pediatrics-Oncology, Molecular and Human Genetics, Baylor College of Medicine, Director, Cancer Genetics Clinical and Research Programs, Texas Children's Hospital   Mark Wallace Tower, 14th Floor    splon@bcm.edu     (832) 832-4539    Web Link    Genetics, Cancer, Mutation, Cancer Genetics, Cancer Predisposition Syndromes, Genomic Instability, Genome Sequencing    Associated Profiles Professional Preparation Research and Expertise Appointments  Professional Preparation  Degree Major Institution Year  MD Medicine Harvard Medical School 1987  PhD Biophysics Harvard University 1987  BS Chemistry Massachusetts Institute of Technology 1979  Research and Expertise Research Interests   The overall goal of my laboratory is to understand the genetic basis of inherited susceptibility to cancer. At a basic level, we are interested in studying genes that normally control genomic stability and when disrupted lead to the instability seen in cancer cells including chromosome losses and gains or aneuploidy. Disruption of these control mechanisms have been found in a large percentage of human tumors and in individuals with a predisposition to specific cancers. On a more translational level, we have carried out analyses of a variety of autosomal recessive cancer predisposition syndromes. Rothmund-Thomson Syndrome (RTS) is associated with a high incidence of osteosarcoma. We have determined that RTS patients who develop osteosarcoma carry deleterious mutations in the RECQL4 gene and we have identified that certain disease causing mutations are associated with mislocalization of the RECQL4 protein (Wang, JNCI, 2003; Burks, GENE, 2009). Most recently, we initiated a project in collaboration with the Human Genome Sequencing Center to develop a large-scale sequencing to identify the causative mutation or chromosome imbalance in families with unusual patterns of childhood cancer. The initial pipeline based on Sanger sequencing analyzed coding regions of 45 cancer-associated genes from genomic DNA of families that have multiple children with cancer or a child with more then one cancer diagnosis (Plon, Cancer Genetics, 2011). We are also using high density oligonucleotide arrays to identify regions of copy number variation in children with cancer and congenital anomalies or learning problems (Cheung, Pediatric Blood and Cancer, 2011). We have now expanded this study to perform whole exome and whole genome analyses of cohorts of families with similar cancer patterns, for example, families with predisposition to childhood acute lymphocytic leukemia and lymphoma. This is a highly collaborative project with collaborators including: Human Genome Sequencing Center, MD Anderson Cancer Center and the Department of Statistics at Rice University. I am also involved in clinical research. We have investigated how physicians who do not have genetics training utilize genetic testing in their clinical practice to aid patients at increased risk of cancer (Plon, 2011; Dhar, 2011). We have now received NHGRI funding to launch a study on the impact of adding whole exome sequencing of tumor and blood into the care of newly diagnosed childhood cancer patients.  Publications/Creative Works Click here to search for this faculty member's publications on PubMed.  Appointments Title Department / School Institution Professor Pediatrics-Oncology Baylor College of Medicine

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