This study hopes to show that specially treated umbilical cord cells, called stem cells, can be safely given to a person after they receive chemoradiation therapy or chemotherapy for their illness. During chemoradiation therapy or chemotherapy, a person loses all of the cells that are needed to make the different types of cells in their blood, including their immune system cells. These cells must be replaced in order for the blood and immune systems to work properly. Some people receive bone marrow transplants or other types of stem cell transplants to get the cells they need. CB001 is being developed as an option for people who need bone marrow transplants or other types of transplants to replace those cells. It is also being developed for people who do not have the option of other types of transplants.
beta -d-Glucan as a Diagnostic Adjunct for Invasive Fungal Infections: Validation, Cutoff Development, and Performance in Patients with Acute Myelogenous Leukemia and Myelodysplastic Syndrome.
The Glucatell (1–>3)- beta -d-glucan (BG) detection assay (Associates of Cape Cod) was studied as a diagnostic adjunct for invasive fungal infections (IFIs). On the basis of findings from a preliminary study of 30 candidemic subjects and 30 healthy adults, a serum BG level of >/=60 pg/mL was chosen as the cutoff. Testing was performed with serial serum samples obtained from 283 subjects with acute myeloid leukemia or myelodysplastic syndrome who were receiving antifungal prophylaxis. At least 1 serum sample was positive for BG at a median of 10 days before the clinical diagnosis in 100% of subjects with a proven or probable IFI. IFIs included candidiasis, fusariosis, trichosporonosis, and aspergillosis. Absence of a positive BG finding had a 100% negative predictive value, and the specificity of the test was 90% for a single positive test result and >/=96% for >/=2 sequential positive results. The Glucatell serum BG detection assay is highly sensitive and specific as a diagnostic adjunct for IFI.
Targeted treatment of hypereosinophilic syndromes and chronic eosinophilic leukemias with imatinib mesylate.
Idiopathic hypereosinophilic syndrome (HES) and chronic eosinophilia leukemia (CEL) represent the most recent additions to the list of molecularly defined chronic myeloproliferative disorders. Beginning with the observation that imatinib mesylate (Gleevec) could elicit rapid and complete hematologic remissions in a proportion of patients with HES, a reverse bedside-to-bench translational research effort led to the discovery of FIP1L1-PDGFRA, a novel fusion gene on chromosome 4q12 whose product is an imatinib-sensitive protein tyrosine kinase. FIP1L1-PDGFRA is the first description of a gain-of-function fusion gene derived from an interstitial chromosomal deletion rather than a reciprocal translocation. Empiric use of imatinib in HES and CEL provides a dramatic example of how the development of targeted therapeutics can provide tremendous insight into the molecular etiology of what appear to be a diverse and otherwise indecipherable collection of diseases. In this review, we discuss the role of imatinib in HES/CEL and other malignancies characterized by constitutively activated tyrosine kinases, and examine molecular features of the FIP1L1-PDGFRA fusion.
A demolished gas station along highway 41 in Port Charlotte, Florida after Hurricane Charley hit the west coast of Florida, August 13, 2004. Charley, a category 4 storm, is packing 145 mph winds (233 kph) and is continuing inland over the Florida peninsula.