Advertisement

Topics

B Cell Repertoires in Chronic Lymphocytic Leukemia and Aging

2014-08-27 03:17:25 | BioPortfolio

Summary

B-CLL is the most prevalent leukemia in the Western hemisphere, accounting for ~25% of all leukemia's (1). This disease occurs virtually exclusively in the aging population, with the median age of diagnosis ranging between the mid 60s and the early 70s. Indeed, its occurrence before the age of 50 is quite unusual. This increase in occurrence with age is not unique to B-CLL; rather, it is characteristic several B cell lymphoproliferative disorders (e.g., non-Hodgkin's lymphoma, multiple myeloma). Gender and race also influence the development of B-CLL. Thus, the ratio of men: women is ~2:1 and the prevalence is increased in Caucasians. The rate of occurrence of B-CLL among Asians is significantly lower than for Caucasians and this does not increase with immigration to the West. DNA sequence analyses performed in our laboratory and in those of others indicate that B-CLL cells from unrelated patients share Ig V gene characteristics. These include the use of selected genes, the association of these genes with certain D and JH gene segments that code for unique CDR3 motifs, and the occasional occurrence of highly similar VHDJH + VLJL pairs. In ~50% cases, these rearranged genes are mutated, whereas in the others mutations are infrequent; this difference is related to the VH gene family used by the B-CLL cell.

Study Design

Observational Model: Case Control, Time Perspective: Cross-Sectional

Conditions

Chronic Lymphocytic Leukemia

Location

Feinstein Institute for Medical Research
Manhasset
New York
United States
11030

Status

Recruiting

Source

North Shore Long Island Jewish Health System

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:17:25-0400

Clinical Trials [1895 Associated Clinical Trials listed on BioPortfolio]

Direct Measurement of Leukemic Cell Turnover (Synthesis and Removal) in Patients With Chronic Lymphocytic Leukemia (CLL) Using Deuterated Water

Chronic lymphocytic leukemia. B-cell chronic lymphocytic leukemia (B-CLL) is the most prevalent leukemia in the Western Hemisphere, accounting for ~25% of all leukemia's. It represents a ...

Banking of Chronic Lymphocytic Leukemia Tumor Cells for Vaccine Generation

The purpose of this research study is to collect, freeze and store leukemia cells from the blood or bone marrow of patients that have advanced chronic lymphocytic leukemia (CLL) that is no...

Rituximab Versus Observation as Maintenance Therapy in Chronic Lymphocytic Leukemia (Chronic Lymphocytic Leukemia)

The purpose of the study is to evaluate the ability of Rituximab maintenance therapy to prolong progression free survival in patients with chronic lymphocytic leukemia, who responded to a ...

A Quality Improvement Approach to the Management of Chronic Lymphocytic Leukemia

This project addresses the need to improve physician knowledge and clinical practice patterns related to quality of life (QoL) concerns for patients with chronic lymphocytic leukemia (CLL)...

Protocol to Obtain Blood for Discovery of Novel Biomarkers and Potential Therapeutic Targets in Chronic Lymphocytic Leukemia

The purpose of this study is to collect a blood sample from patients with Chronic Lymphocytic Leukemia (CLL) and from volunteers without CLL.

PubMed Articles [7277 Associated PubMed Articles listed on BioPortfolio]

Histiocytic Sarcoma: Review, Discussion of Transformation From B-Cell Lymphoma, and Differential Diagnosis.

Histiocytic sarcoma is a rare neoplasm of mature histiocytes with an aggressive clinical course that can arise de novo or from a low-grade B-cell lymphoma. In particular, chronic lymphocytic leukemia/...

An Unusual Coexistence of Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma with Endometrioid-Type Endometrial Cancer in a 58-Year-Old Woman: A Case Study with Literature Review.

The coexistence of chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) with different gynecologic neoplasms is a rare phenomenon. Here, we report a case of simultaneously developed CLL/S...

Comparable Efficacy of Idelalisib Plus Rituximab and Ibrutinib in Relapsed/refractory Chronic Lymphocytic Leukemia: A Retrospective Case Matched Study of the Polish Adult Leukemia Group (PALG).

There is limited amount of data available on the comparative efficacy of ibrutinib and idelalisib, the B-cell receptor inhibitors (BCRi) newly approved for relapsed/refractory chronic lymphocytic leuk...

A case report of extranodal NK/T-cell lymphoma in patient with chronic lymphocytic leukemia.

Chronic lymphocytic leukemia often results in secondary tumors, the most common being large B cell lymphoma known as Richter syndrome, followed by extranodal NK/T-cell lymphoma (nasal type) is extreme...

Updated results from the phase 3 HELIOS study of ibrutinib, bendamustine, and rituximab in relapsed chronic lymphocytic leukemia/small lymphocytic lymphoma.

We report follow-up results from the randomized, placebo-controlled, phase 3 HELIOS trial of ibrutinib+bendamustine and rituximab (BR) for previously treated chronic lymphocytic leukemia (CLL)/small l...

Medical and Biotech [MESH] Definitions

A chronic leukemia characterized by abnormal B-lymphocytes and often generalized lymphadenopathy. In patients presenting predominately with blood and bone marrow involvement it is called chronic lymphocytic leukemia (CLL); in those predominately with enlarged lymph nodes it is called small lymphocytic lymphoma. These terms represent spectrums of the same disease.

A chronic leukemia characterized by a large number of circulating prolymphocytes. It can arise spontaneously or as a consequence of transformation of CHRONIC LYMPHOCYTIC LEUKEMIA.

A lymphoid leukemia characterized by a profound LYMPHOCYTOSIS with or without LYMPHADENOPATHY, hepatosplenomegaly, frequently rapid progression, and short survival. It was formerly called T-cell chronic lymphocytic leukemia.

A pathologic change in leukemia in which leukemic cells permeate various organs at any stage of the disease. All types of leukemia show various degrees of infiltration, depending upon the type of leukemia. The degree of infiltration may vary from site to site. The liver and spleen are common sites of infiltration, the greatest appearing in myelocytic leukemia, but infiltration is seen also in the granulocytic and lymphocytic types. The kidney is also a common site and of the gastrointestinal system, the stomach and ileum are commonly involved. In lymphocytic leukemia the skin is often infiltrated. The central nervous system too is a common site.

A basic helix-loop-helix transcription factor that plays a critical role in HEMATOPOIESIS and as a positive regulator in the differentiation of ERYTHROID CELLS. Chromosome translocations involving the TAL-1 gene are associated with T-CELL ACUTE LYMPHOCYTIC LEUKEMIA.

More From BioPortfolio on "B Cell Repertoires in Chronic Lymphocytic Leukemia and Aging"

Advertisement
Quick Search
Advertisement
Advertisement

 

Relevant Topic

Leukemia
Leukemia is a type of cancer of the blood or bone marrow characterized by an abnormal increase of immature white blood cells called "blasts". Leukemia is a broad term covering a spectrum of diseases. In turn, it is part of the even broader grou...


Searches Linking to this Trial