Publications by authors named "Yasuhiko Haga"

Article Synopsis
  • The study investigates the early stages of tumor development, specifically focusing on lung adenocarcinomas like adenocarcinoma in situ (AIS) and minimally invasive adenocarcinoma.
  • Researchers conducted comprehensive genomic analysis on 76 lung cancer samples, combining sequencing data with transcriptomic and epigenomic information.
  • Findings indicate that very early-stage tumors have minimal somatic mutations, primarily in key driver mutations, leading to copy number changes and global DNA hypomethylation as the disease progresses, particularly in Noguchi type B tumors.
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Long-read sequencing technologies enable us to precisely identify structural variants (SVs), which would be occasionally associated with various types of diseases, including cancers. In this section, we introduce experimental and computational procedures for conducting long-read whole-genome sequencing (WGS) of cancer genomes from fresh frozen tissues/cells. We also demonstrate the analysis of SVs in cancer genomes using long-read WGS data from lung cancer cell lines by several representative computational tools, such as cuteSV and Sniffles2, as examples.

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A genetic analysis of Japanese Black cattle using short reads and guided by the reference genome from Western breeds would miss the structural variation and/or other unique characteristics of Japanese Black cattle. To overcome this difficulty, a de novo genome assembly independent from the reference genome is required. This chapter describes the technical developments, with respect to both experimental and bioinformatics procedures, including the use of short and long reads, required for de novo genome assembly of Japanese Black cattle.

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The immune landscape varies among individuals. It determines the immune response and results in surprisingly diverse symptoms, even in response to similar external stimuli. However, the detailed mechanisms underlying such diverse immune responses have remained mostly elusive.

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