Christopher D. Watt

Learn More
In this study, we correlated the results of concurrent molecular and cytogenetic detection of entity-defining translocations in adults with acute leukemia to determine the frequency of cryptic translocations missed by conventional cytogenetics (CC) and of recurrent, prognostically relevant translocations not detectable by multiplex reverse(More)
The diagnosis and classification of acute myeloid leukemia is multifaceted, requiring the integration of a variety of laboratory findings, with genetic approaches now firmly established as a central component. Molecular genetic technologies continue to evolve and provide additional tiers of both clarity and complexity. Many have rapidly moved into clinical(More)
INTRODUCTION Mutations in EGFR and KRAS can impact treatment decisions for patients with NSCLC. The incidence of these mutations varies, and it is unclear whether there is a decreased frequency among African Americans (AfAs). METHODS We performed a retrospective chart review of 513 NSCLC patients undergoing EGFR and KRAS mutational analysis at the(More)
PURPOSE Despite the documented contribution of graduates of MD-PhD programs to the medical profession, few data exist concerning the views, attitudes, and career goals of students before they graduate from such programs. METHOD All 167 students enrolled in the University of Pennsylvania School of Medicine Combined Degree Program in the spring of 2002 were(More)
BACKGROUND Molecular profiling of non-small-cell lung cancer (NSCLC) samples has a profound impact on choice of therapy. However, it is less clear whether EGFR and KRAS mutations are prognostic outside of a trial-based treatment paradigm. METHODS We performed a retrospective chart review of 513 patients with NSCLC undergoing EGFR and KRAS mutational(More)
PURPOSE To collect national trainee-derived data about the educational process and experience of MD-PhD students. METHOD Eight hundred sixty-eight MD-PhD students enrolled in 15 training programs nationally were surveyed in spring 2003 via a 29-item Web-based questionnaire. Closed-ended questions assessed students' opinions, attitudes, and goals(More)
In the current era of organ shortages and long wait times for life-saving transplants, marginal or extended donors are increasingly being considered; one such category of marginal organs is from donors with a previous history of malignancy. Melanoma in particular has been associated with increased risk of developing late recurrence. In this report, we(More)
Accurate and standardized methods for the quantitative measurement of BCR-ABL1 are a prerequisite for monitoring of treatment response in t(9;22)-positive leukemia. Here, we describe a novel multiplex assay system based on the proven TaqMan and Armored RNA technologies and optimized for sensitive detection of three BCR-ABL1 fusion transcripts and ABL1 in a(More)
Epidermal growth factor receptor (EGFR) mutation status has been shown to predict response to anti-EGFR tyrosine kinase inhibitors in non-small cell lung cancer (NSCLC). In patients with advanced-stage NSCLC, evaluation of mutational status is increasingly requested on biopsy or fine-needle aspiration specimens, which often have limited material. There are(More)
With this study we have demonstrated that in vitro transduction of normal human CD4(+) T lymphocytes with NPM-ALK results in their malignant transformation. The transformed cells become immortalized and display morphology and immunophenotype characteristic of patient-derived anaplastic large-cell lymphomas. These unique features, which are strictly(More)