Analysis of Rare Circulating Tumor Cells (CTCs) for the Management of Cancer-related DiseasesWednesday, 30 September 2015 at 08:30 Add to Calendar ▼2015-09-30 08:30:002015-09-30 09:30:00Europe/LondonAnalysis of Rare Circulating Tumor Cells (CTCs) for the Management of Cancer-related DiseasesNGS, SCA, Mass Spec: The Road to Diagnostics in San Diego, California, USASan Diego, California, USASELECTBIOenquiries@selectbiosciences.com Management of many cancer-related diseases is not restricted to diagnosis, but also must include prognosis, patient stratification, determining drug efficacy, and monitoring for disease recurrence. To assist clinicians in managing cancer diseases, the use of rare CTCs are seen as attractive biomarkers due to the minimally invasive nature of securing them (peripheral blood draw) and the wealth of material they contain (genomic DNA, messenger RNA, proteins, etc). We have developed an assay and the associated hardware that can select directly from peripheral blood CTCs of different types to assist in making clinical decisions for cancer patients in all phases of the management pipeline. Fluidic systems have been generated that can select with high efficiency multiple CTC types that provide complementary information, including those that have an epithelial phenotype and those that possess the ability to digest the extracellular matrix. CTCs of both types were enumerated in a variety of cancer diseases including breast, ovarian, colorectal and pancreatic. Molecular profiling of these rare cell types was also carried out such as mutation detection and mRNA expression profiling. The fluidic system could also be programmed using the appropriate selection antibodies to target circulating cells from non-solid tumors, for example acute myeloid leukemia (AML) and multiple myeloma that would obviate the need for bone marrow biopsies. In the case of multiple myeloma, CD138 was used to select circulating multiple myeloma cells and these cells could be analyzed via FISH to search for chromosome 13 deletions. For AML, the selected leukemic cells (selected using combinations of CD117, CD34 and CD33) could be secured from the fluidic system and immunophenotyped using a miniature flow cytometer. The molecular profiling of rare circulating tumor cells will be discussed with the prospects of performing such analyses on early stage disease, where the CTC abundance is significantly lower. |