نتایج جستجو برای: acute lymphoblastic leukemia recognition
تعداد نتایج: 931020 فیلتر نتایج به سال:
The 2008 World Health Organization (WHO) classification of tumors of hematopoietic and lymphoid tissues introduced a new category for myeloid and lymphoid neoplasms with eosinophilia and abnormalities of PDGFRA, PDGFRB or FGFR1. Many of these cases present as a myeloproliferative neoplasm, usually with eosinophilia. However, neoplasms associated with rearrangement of PDGFRA can present as acute...
T-cell acute lymphoblastic leukemia is caused by the accumulation of multiple oncogenic lesions, including chromosomal rearrangements and mutations. To determine the frequency and co-occurrence of mutations in T-cell acute lymphoblastic leukemia, we performed targeted re-sequencing of 115 genes across 155 diagnostic samples (44 adult and 111 childhood cases). NOTCH1 and CDKN2A/B were mutated/de...
The NUP214-ABL1 fusion protein is a constitutively active protein tyrosine kinase that is found in 6% of patients with T-cell acute lymphoblastic leukemia and that promotes proliferation and survival of T-lymphoblasts. Although NUP214-ABL1 is sensitive to ABL1 kinase inhibitors, development of resistance to these compounds is a major clinical problem, underlining the need for additional drug ta...
In acute lymphoblastic leukemia, besides age and white cell count at diagnosis, the cytogenetic abnormalities t(9;22)/BCR-ABL and t(4;11)/MLL-AF4 are important prognostic markers and are often included in the treatment stratification of patients with adult acute lymphoblastic leukemia. Deletions in 9p are seen in about 9% of cases of adult acute lymphoblastic leukemia, but their prognostic impa...
The significance of immunophenotyping is growing day by day. Itprovides basic information in regard to classification and prognosisof acute leukemia which helps the management of patients. Thisstudy was conducted to Identify CD markers in leukemic patientsadmitted to Tabriz, in northwestern Iran. Immunophenotyping of 60patients with acute leukemia was determined. Patients with acutemyelogenous ...
Acute lymphoblastic leukemia is the most common malignancy in pediatric patients; its diagnosis is usually easy to establish as malignant lymphoblasts invade the bone marrow and peripheral blood. Some acute lymphoblastic leukemia patients may initially present with pancytopenia and a hypoplastic bone marrow leading to the initial diagnosis of aplastic anemia. In most of these patients clinical ...
BACKGROUND Cytokines released in the bone marrow and thymic microenvironments play a key role in the growth of T-cell acute lymphoblastic leukemia. Among such cytokines, interleukin-8 is highly expressed in T-cell acute lymphoblastic leukemia cells refractory to chemotherapy. In this study we explored whether bone marrow stromal cells can regulate IL-8 expression in T-cell acute lymphoblastic l...
Background and Aim: Angiogenesis is essential in the progression and metastasis of solid tumors. It has been proved that increase in angiogenesis within primary solid tumors is actually associated with nodal metastasis and risk prognosis of some malignancies. In contrast, regarding hematologic neoplasms very limited studies have been done. The goal of the present study was to determine MVD (M...
Background: Leukemia is one of the most common pediatric malignancies. T-cell Acute Lymphoblastic Leukemia (T-ALL) accounts for 15% of hematopoetic cancers. It has been well understood that identification of genetic alterations associated with leukemias is very critical. The molecular genetic techniques have promoted the identification of leukemia-associated genetic changes that may characteriz...
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