Publications by authors named "Christopher M Lalansingh"

This study uncovered 223 recurrently mutated driver regions using the largest cohort of prostate tumors to date. It reveals associations between germline SNPs, somatic drivers, and tumor aggression, offering significant insights into how prostate tumor evolution is shaped by germline factors and the timing of somatic mutations.

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Article Synopsis
  • Anaplastic thyroid carcinoma is one of the deadliest cancers and frequently occurs alongside differentiated thyroid cancers, but its aggressive nature is not well understood.
  • Researchers analyzed tumor DNA from 329 regions of thyroid cancer, revealing that anaplastic thyroid carcinomas have more mutations and unique mutational patterns compared to other thyroid cancers.
  • The study shows that although anaplastic and differentiated thyroid carcinomas can occur in the same patient, they have different mutated genes and share a common genetic origin that allows them to develop from a similar malignant environment.
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Tumor DNA sequencing data can be interpreted by computational methods that analyze genomic heterogeneity to infer evolutionary dynamics. A growing number of studies have used these approaches to link cancer evolution with clinical progression and response to therapy. Although the inference of tumor phylogenies is rapidly becoming standard practice in cancer genome analyses, standards for evaluating them are lacking.

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Background: Visualization of data generated by high-throughput, high-dimensionality experiments is rapidly becoming a rate-limiting step in computational biology. There is an ongoing need to quickly develop high-quality visualizations that can be easily customized or incorporated into automated pipelines. This often requires an interface for manual plot modification, rapid cycles of tweaking visualization parameters, and the generation of graphics code.

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Background: It is extremely common to need to select a subset of reads from a BAM file based on their specific properties. Typically, a user unpacks the BAM file to a text stream using SAMtools, parses and filters the lines using AWK, then repacks them using SAMtools. This process is tedious and error-prone.

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