MIB Agents OsteoBites and osTEAo

MIB Agents Osteosarcoma

Each week, MIB Agents talks with the leaders and innovators in osteosarcoma surgery, research, treatment and advocacy. Questions are taken during the webinar and are included in each podcast. More information is available at www.mibagents.org

  1. May 15

    A Phase 1/2, Study to Evaluate LNTH-2403, a LRRC15-targeted radiopharmaceutical, in Patients with Relapsed/Refractory Osteosarcoma

    David Shulman, MD, joins us on OsteoBites to discuss the newly opened phase 1/2 study to evaluate LNTH-2403, a LRRC15-targeted radiopharmaceutical, in patients with relapsed/refractory osteosarcoma. For many years, LRRC15 has been known to be an important target in osteosarcoma. A prior study showed a strong signal of activity of an LRRC15-targeted therapy in osteosarcoma; however, the development of the agent was not pursued. There is now a novel LRRC15-targeting radiopharmaceutical that has entered clinical trials for patients with osteosarcoma, and Dr. Shulman will provide an overview of this newly opened trial. Dr. David Shulman is a Pediatric Oncologist and clinical/translational researcher at Dana-Farber Cancer Institute, where he also serves as an Assistant Professor of Pediatrics at Harvard Medical School. As the Director of the DFCI AYA Sarcoma Program, he focuses his clinical practice on the specialized care of adolescents and young adults (AYA) diagnosed with sarcomas. His research program, which has received support from the NIH and Harvard Catalyst, is dedicated to improving patient outcomes through the investigation of novel therapeutic approaches and the utility of circulating tumor DNA (ctDNA) as a clinical biomarker. He leads a national liquid biopsy study for patients with Ewing sarcoma and osteosarcoma, known as the LEOPARD study.

  2. May 8

    Defining tumor-specific vulnerabilities by mapping oncogenic structural variation in osteosarcoma

    Andrew Clugston, PhD, a postdoctoral fellow in the Sweet-Cordero Lab at UCSF joins us on OsteoBites to discuss his OutSmarting Osteosarcoma funded work, in partnership with the RISE Foundation, on defining tumor-specific vulnerabilities by mapping oncogenic structural variation in osteosarcoma. The genomes of osteosarcoma (OS) cancer cells are among the most complex cancer genomes ever observed. Initially formed by hundreds to thousands of incorrectly repaired DNA breaks (structural variants; SVs), OS genomes contain DNA structures that are unique to that patient and tumor cell, combining genes and regulatory features from across the genome in ways that effectively re-wire that cell’s gene expression mechanisms. OS cells are also susceptible to further SVs over time and in response to treatment, potentially allowing OS tumors to evolve rapidly. But these complex and tumor-specific genomic structures may also harbor tumor-specific vulnerabilities. By mapping the many unique DNA structures among patient-derived OS tumor cells, Dr. Clugston has attempted to demonstrate that it is possible both to describe the essential structures within these cells and to search them for novel target genes vulnerable to existing drugs and treatment protocols. Using chromatin conformation capture sequencing (HiC) to observe the shape of the genome and optical genome mapping (OGM) to identify tumor-specific DNA structures, Dr. Clugston has produced tumor-specific maps for multiple patient-derived OS tumor cell lines and has begun development of a search process based on long-read mapping techniques that he hopes will inform future patient-specific treatment protocols. Andrew Clugston grew up in the small town of Lake Luzerne, New York. He received a BS in Biochemistry and an MS in Chemistry at the Rochester Institute of Technology, and he received his PhD in Integrative Systems Biology at the University of Pittsburgh. During his PhD he learned to use and develop bioinformatics tools and techniques to study the role of the genome in kidney as well as eye development, and in the process became fascinated with the importance of 3-dimensional organization in regulating cell behavior. Andrew has since joined the Sweet-Cordero laboratory in the Pediatric Oncology Division at the University of California San Francisco as a Postdoctoral Fellow. There, he applies his knowledge and skillset to study how disruptions in these organizational principles allow osteosarcoma cells to develop and proliferate, and how these changes reveal tumor-specific vulnerabilities that can be exploited for fast and effective treatment options that improve the lives of patients.

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Each week, MIB Agents talks with the leaders and innovators in osteosarcoma surgery, research, treatment and advocacy. Questions are taken during the webinar and are included in each podcast. More information is available at www.mibagents.org