Childhood Cancer Data Initiative Annual Symposium (Abstract Registration): Submission #43
Submission information
Submission Number: 43
Submission ID: 148488
Submission UUID: a07e4075-9365-4cfa-b90f-ef250f286557
Submission URI: /nci/ccdisymposium/abstract
Created: Fri, 08/08/2025 - 15:52
Completed: Fri, 08/08/2025 - 16:03
Changed: Fri, 08/08/2025 - 16:03
Remote IP address: 10.208.24.35
Submitted by: Anonymous
Language: English
Is draft: No
serial: '43' sid: '148488' uuid: a07e4075-9365-4cfa-b90f-ef250f286557 uri: /nci/ccdisymposium/abstract created: '1754682758' completed: '1754683394' changed: '1754683394' in_draft: '0' current_page: '' remote_addr: 10.208.24.35 uid: '0' langcode: en webform_id: ccdi_symposium_abstract entity_type: node entity_id: '2139' locked: '0' sticky: '0' notes: '' metatag: meta data: authors_: - add_author_degree: PhD add_author_first_name: Owen add_author_last_name: Chapman add_author_middle: S add_author_organization: 'Nagoya City University ' - add_author_degree: MD add_author_first_name: Sunita add_author_last_name: Sridhar add_author_middle: '' add_author_organization: "Rady Children's Hospital San Diego" - add_author_degree: PhD add_author_first_name: Eugene add_author_last_name: Yui-Ching add_author_middle: '' add_author_organization: 'SBP Medical Discovery Institute' - add_author_degree: '' add_author_first_name: Rishaan add_author_last_name: Kenkre add_author_middle: '' add_author_organization: 'SBP Medical Discovery Institute' - add_author_degree: '' add_author_first_name: Jonathan add_author_last_name: Kirkland add_author_middle: '' add_author_organization: 'UC San Diego' - add_author_degree: '' add_author_first_name: Aditi add_author_last_name: Dutta add_author_middle: '' add_author_organization: 'UC San Diego' - add_author_degree: '' add_author_first_name: Shanqing add_author_last_name: Wang add_author_middle: '' add_author_organization: 'UC San Diego' - add_author_degree: '' add_author_first_name: Wenshu add_author_last_name: Zhang add_author_middle: '' add_author_organization: 'UC San Diego' - add_author_degree: PhD add_author_first_name: Miguel add_author_last_name: Brown add_author_middle: '' add_author_organization: "Children's Hospital of Philadelphia" - add_author_degree: PhD add_author_first_name: Jens add_author_last_name: Luebeck add_author_middle: '' add_author_organization: 'UC San Diego' - add_author_degree: '' add_author_first_name: Yan add_author_last_name: Lo add_author_middle: Yuen add_author_organization: 'SBP Medical Discovery Institute ' - add_author_degree: PhD add_author_first_name: Elias add_author_last_name: Rodrigez-Fos add_author_middle: '' add_author_organization: 'Experimental and Clinical Research Center of the Max Delbrück Center and Charite Berlin' - add_author_degree: 'MD, PhD' add_author_first_name: Anton add_author_last_name: Henssen add_author_middle: G add_author_organization: 'Experimental and Clinical Research Center of the Max Delbrück Center and Charite Berlin' - add_author_degree: PhD add_author_first_name: Konstantin add_author_last_name: Okonechnikov add_author_middle: '' add_author_organization: 'Hopp Children’s Cancer Center Heidelberg (KiTZ)' - add_author_degree: 'MD, PhD' add_author_first_name: David add_author_last_name: Ghasemi add_author_middle: R add_author_organization: 'Hopp Children’s Cancer Center Heidelberg (KiTZ)' - add_author_degree: 'MD PhD' add_author_first_name: Kristian add_author_last_name: Pajtler add_author_middle: W add_author_organization: 'Hopp Children’s Cancer Center Heidelberg (KiTZ)' - add_author_degree: PhD add_author_first_name: Daisuke add_author_last_name: Kawauchi add_author_middle: '' add_author_organization: 'Nagoya City University' - add_author_degree: PhD add_author_first_name: Vineet add_author_last_name: Bafna add_author_middle: '' add_author_organization: 'UC San Diego' - add_author_degree: MD add_author_first_name: Megan add_author_last_name: Pau; add_author_middle: '' add_author_organization: "Rady Children's Hospital San Diego" - add_author_degree: PhD add_author_first_name: Kevin add_author_last_name: Yip add_author_middle: '' add_author_organization: 'SBP Medical Discovery Institute ' - add_author_degree: PhD add_author_first_name: Jill add_author_last_name: Mesirov add_author_middle: '' add_author_organization: 'UC San Diego' - add_author_degree: PhD add_author_first_name: Lukas add_author_last_name: Chavez add_author_middle: '' add_author_organization: 'SBP Medical Discovery Institute ' abstract: 'Circular extrachromosomal DNA (ecDNA) is a common form of oncogene amplification in aggressive cancers. The frequency and diversity of ecDNA has been catalogued in adult and some childhood cancers; however, its role in most pediatric cancers is not well-understood. To address this gap, we accessed large pediatric cancer genomics data repositories and identified ecDNA from whole genome sequencing data using cloud computing. This retrospective cohort comprises 3,631 solid tumor biopsies from 2,968 patients covering all major childhood solid tumor types. Aggressive tumor types had particularly high incidences of ecDNA. Pediatric patients whose tumors harbored extrachromosomal DNA had significantly poorer five-year overall survival than children whose tumors contained only chromosomal amplifications. We catalogue known and potentially novel oncogenes recurrently amplified on ecDNA and show that ecDNA often evolves during disease progression. These results highlight patient populations that could potentially benefit from future ecDNA-directed therapies. To facilitate discovery, we developed an interactive catalogue of ecDNA in childhood cancer at https://ccdi-ecdna.org/.' abstract_title_: 'Extrachromosomal DNA associates with poor survival across a broad spectrum of childhood solid tumors' email_address_: lchavez@sbpdiscovery.org institution_: 'SBP Medical Discovery Institite' presenting_author_: 'Lukas Chavez'