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B lymphopoiesis requires that immunoglobulin genes be accessible to RAG1-RAG2 recombinase. However, the RAG proteins bind widely to open chromatin, which suggests that additional mechanisms must restrict RAG-mediated DNA cleavage. Here we show that developmental downregulation of interleukin 7 (IL-7...
ORGANISM(S): Mus musculus 
Dengue viruses (DENV) are generally maintained in a cycle which requires horizontal transmission via their arthropod vector, Ae. Aegypti, to the vertebrate host. One important consequence of this process is the interference of these arboviruses with both invertebrate and vertebrate immune systems. W...
ORGANISM(S): Aedes aegypti 
We investigated the cause of gastrointestinal neoplasia in a man who developed adenocarcinoma of the ampulla of Vater at the age of 34, followed almost three decades later by adenomatous polyps and invasive adenocarcinomas of both the colon and stomach. Premature chromatid separation, mosaic variega...
ORGANISM(S): Homo sapiens 
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