2482 INSIGHTS | The Journal of Experimental Medicine Malaria is caused by Plasmodium parasites and is commonly thought of as a disease resulting from the cyclic infection and destruction of red blood cells. However, a subset of infected individuals will develop “cerebral malaria”—a pathogenic neuroinflammation, presumably caused by parasitized red blood cells sequestering in the brain. Those af...

Adult T-cell leukemia/lymphoma (ATL/ATLL) is one of the most malignant lymphomas with poor prognosis. ATL/ATLL cells express CC chemokine receptor 4, and mogamulizumab (anti-CCR4 monoclonal antibody) exhibits strong cytotoxicity for ATL/ATLL cells. We analyzed plasma samples of 6 patients with ATL/ATLL treated with chemotherapy followed by mogamulizumab therapy (mogatherapy) for changes in the ...

Adult T-cell leukemia/lymphoma (ATLL) is a lymphoproliferative neoplasm of helper T lymphocytes caused by human T-cell leukemia virus type-1 (HTLV-1). The disease was first described in Kyushu, in southwestern Japan, and most frequently occurs in endemic areas, such as Japan, the Caribbean basin, West Africa, Brazil, and northern Iran. ATLL is essentially a disease of adults, characterized clin...

Adult T-cell leukemia/lymphoma (ATLL) is a highly aggressive disease that occurs in individuals infected with the human T lymphotropic virus type 1 (HTLV-1). Patients with aggressive ATLL have a poor prognosis because the leukemic cells are resistant to conventional chemotherapy. We have investigated the therapeutic efficacy of a biphosphinic cyclopalladated complex {Pd(2) [S(-)C(2), N-dmpa](2)...

UNLABELLED Acute pancreatitis is a common complication, which occurs with patients suffering from vesicular biliary lithiasis or chronic alcoholism. Hypercalcemia may determine acute pancreatitis, its causes being multiple: primary or secondary hyperparathyroidism, metabolic diseases of the bone, metastatic bone neoplasm, as well as lymphoproliferative syndromes caused by the HTLV-1 virus-adult...

ATLL is an aggressive malignancy of T cells that affects about 5% of individuals infected with HTLV-1. The precise mechanism of oncogenesis is not known, but there is evidence that two regulatory viral proteins, Tax and HBZ, are involved. A high set point proviral load is associated with development of ATLL or a chronic inflammatory condition, HAM/TSP. Several lines of evidence, including HLA c...

Viruses disrupt the host cell microRNA (miRNA) network to facilitate their replication. Human T-cell leukemia virus type I (HTLV-1) replication relies on the clonal expansion of its host CD4(+) and CD8(+) T cells, yet this virus causes adult T-cell leukemia/lymphoma (ATLL) that typically has a CD4(+) phenotype. The viral oncoprotein Tax, which is rarely expressed in ATLL cells, has long been re...

Of the millions of HTLV-1 infected carriers worldwide, 3-5% will develop an aggressive T-cell neoplasm that is highly refractory to conventional therapy. The virus carries the Tax oncogene which constitutively activates the NFκB pathway. This co-option of signaling through NFκB provides for the HTLV-1 infected cell an escape from cell cycle arrest and apoptosis, a steady source of growth factor...

Loss-of-function mutations in Janus kinase 3 (JAK3) are an underlying cause of severe combined immunodeficiency (SCID), whereas hyperactive JAK3 mutants have been identified in hematolocigal malignancies.1-3 In this issue of Blood, Elliot et al place JAK3 again under the magnifying lens and describe novel gain-of-function mutations in the FERM (Founding members: band 4.1, Ezrin, Radixin, and Mo...