Abstract：
:The B-cell receptor (BCR) is of critical importance for normal B cells and for the majority of B-cell malignancies, especially chronic lymphocytic leukemia (CLL). The two major subsets of CLL are biologically distinct, being derived from B cells at different stages of differentiation and carrying unmutated (U-CLL) or mutated (M-CLL) IGHV genes. U-CLL, which has a poorer prognosis, often has relatively conserved (stereotypic) IGHV-HD-HJ sequences, indicative of interaction with large (super)antigens and similar to those in normal naive innate B cells. Conserved sequences are less evident in M-CLL, in keeping with its postfollicular origin. However, both subsets exhibit features of chronic antigen exposure in tissue sites, with local proliferative events, but also downregulation of surface immunoglobulin M but not surface immunoglobulin D, a characteristic of normal anergic B cells. BCR-mediated anergy can spread to other receptors such as CXCR4. Circulating CLL cells retain a shadow of tissue-based events that can reverse over time, but the overall extent of anergy is greater in M-CLL. Despite this stereotypic variety and more genomic complexity, BCR-mediated responses in vitro appear relatively homogeneous in U-CLL, but M-CLL is more heterogeneous. The differential balance between antigen-induced proliferation or anergy is the likely determinant of clinical behavior and possibly of response to kinase inhibitors.
journal_name
Semin Hematoljournal_title
Seminars in hematologyauthors
Stevenson FK,Forconi F,Packham Gdoi
10.1053/j.seminhematol.2014.05.003subject
Has Abstractpub_date
2014-07-01 00:00:00pages
158-67issue
3eissn
0037-1963issn
1532-8686pii
S0037-1963(14)00029-8journal_volume
51pub_type
杂志文章,评审abstract：:Iron is a vitally important element in mammalian metabolism because of its unsurpassed versatility as a biologic catalyst. However, when not appropriately shielded or when present in excess, iron plays a key role in the formation of extremely toxic oxygen radicals, which ultimately cause peroxidative damage to vital c...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/shem.2002.35638
更新日期：2002-10-01 00:00:00
abstract：:Virtually all human cells are endowed with the capacity to commit suicide using an evolutionarily conserved mechanism that involves activation of caspase-family cell death proteases. Caspase activation culminates in a cell death process known as "apoptosis." The activation of these intracellular proteases is carefully...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1016/s0037-1963(00)90055-6
更新日期：2000-10-01 00:00:00
abstract：:Severe neutropenia renders patients susceptible to life-threatening bacterial and fungal infections. Despite improvements in supportive care and antimicrobial therapy, morbidity and mortality remains significant. Since the 1960s, granulocyte transfusions have been used to either treat or prevent serious infections in ...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2019.11.002
更新日期：2019-10-01 00:00:00
abstract：:There are now more than 25 million volunteer donors registered worldwide for patients in need of a life-saving hematopoietic cell transplant to cure blood disorders. Although a human leukocyte antigen (HLA)-matched donor remains the preferred stem cell source for transplantation, the use of a donor with limited HLA mi...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2016.07.003
更新日期：2016-10-01 00:00:00
abstract：:Myelodysplastic syndromes (MDS) are clonal disorders characterized by ineffective hematopoiesis and subsequent frequent development of acute myeloid leukemia (AML). In children and adolescents, MDS are uncommon disorders, accounting for less than 5% of hematopoietic malignancy, with great heterogeneity in presentation...
journal_title：Seminars in hematology
pub_type： 杂志文章
doi：10.1053/j.seminhematol.2007.10.006
更新日期：2008-01-01 00:00:00
abstract：:The delineation of specific erythrocyte glycolytic enzyme defects during the past three decades has clarified hitherto unexplained hereditary hemolytic syndromes. The glycolytic enzymopathies have proven to be important, not as a public health problem, but because the investigation of these experimental models of natu...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1990-04-01 00:00:00
abstract：:Activation products of the terminal complement cascade potently affect granulocyte function, inducing, for example, their migration toward (chemotaxis), and adherence to (opsonization), microbes, and stimulating their production of microbicidal oxygen radicals such as superoxide anion, and the like. We present studies...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1979-04-01 00:00:00
abstract：:There is consensus that human herpesvirus 8 (HHV-8) is a necessary, albeit not sufficient, causal agent of Kaposi's sarcoma (KS). In the past several years, there have been rapid advances in our understanding of HHV-8 infection. In diagnosis, antibody detection is more sensitive than nucleic acid-based techniques. Whi...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/shem.2003.50013
更新日期：2003-04-01 00:00:00
abstract：:A new high-purity recombinant factor VIII preparation has been developed for the treatment of hemophilia A. Structurally, this factor VIII preparation, B-domain deleted recombinant factor VIII (BDDrFVIII), differs from other recombinant and plasma-derived factor VIII preparations in that most of the B-domain has been ...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1016/s0037-1963(01)90103-9
更新日期：2001-04-01 00:00:00
abstract：:Recombinant activated factor VII (rFVIIa; NovoSeven, Novo Nordisk, Denmark) induces hemostasis in life- and limb-threatening bleeds and in major surgery of hemophilia A and B patients, regardless of inhibitor titer. A total of more than 6,500 patients have been treated, and NovoSeven has been administered in more than...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1016/s0037-1963(01)90147-7
更新日期：2001-10-01 00:00:00
abstract：:While the prevalence of iron deficiency has remained relatively constant, there has been continuing refinement in its laboratory recognition, especially with the recent introduction of serum ferritin and FEP measurements. It is helpful to classify iron deficiency into three stages. Storage iron depletion is identified...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1982-01-01 00:00:00
abstract：:Tumor cells from patients with B-cell malignancies exhibit a number of immunophenotypic characteristics that may be responsible for their survival. It has been shown, for example, that down-modulation of CD154 (CD40 ligand), which allows B cells to respond to T cells, may account for some of the immune defects of thes...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1999-10-01 00:00:00
abstract：:Imatinib mesylate (Gleevec, Novartis Pharmaceuticals Corp, East Hanover, NJ; Glivec, Novartis Pharma AG, Basel, Switzerland), a signal transduction inhibitor with preferential effects against the tyrosine kinase activity of the protein product of the ABL proto-oncogene, induced hematologic responses in >or=90% of pati...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/shem.2002.36927
更新日期：2002-10-01 00:00:00
abstract：:Management of patients with beta-thalassemia is based on adequate, safe blood transfusions (free of transfusion-transmitted diseases) and prevention of iron overload. Iron overload causes multiple endocrinopathies, contributes to osteoporosis, and is the cause of cardiac disease. Cardiac disease, secondary to iron dam...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1016/s0037-1963(01)90029-0
更新日期：2001-10-01 00:00:00
abstract：:In this review, we discuss disease-causing alterations of RUNT-related transcription factor 1 (RUNX1), a master regulator of hematopoietic differentiation. Familial platelet disorder with predisposition to myeloid leukemia (FPDMM) typically presents with (1) mild to moderate thrombocytopenia with normal-sized platelet...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2017.04.006
更新日期：2017-04-01 00:00:00
abstract：:While cure rates of over 80% are achieved in contemporary pediatric acute lymphoblastic leukemia (ALL) protocols, most adults with ALL succumb to their disease, and little progress has been made in the treatment of refractory and relapsed ALL. Moreover, the burden of therapy is high in a significant number of newly di...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2008.09.009
更新日期：2009-01-01 00:00:00
abstract：:This report suggests modest changes in the criteria used for the diagnosis of ET and allows tentative recommendations concerning therapy. As outlined in Table I, we believe that absent stainable marrow iron does not necessarily indicate iron deficiency in these patients and that the serum ferritin and RBC mean corpusc...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1997-01-01 00:00:00
abstract：:Mechanisms of resistance to the tyrosine kinase inhibitor (TKI) imatinib had been modeled in vitro even prior to the first reports of clinical resistance in patients with chronic myeloid leukemia (CML). The discovery that BCR-ABL is reactivated at the time of resistance and the unveiling of point mutations within the ...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2010.06.005
更新日期：2010-10-01 00:00:00
abstract：:The virome has been recently studied in hematology and mostly in the setting of allogeneic hematopoietic stem cell transplantation. However, in hematology (as in the setting of nonhematological disorders) the study of the microbiome (that indeed includes the virome) is a growing field. The overall field is moving beyo...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2020.05.001
更新日期：2020-01-01 00:00:00
abstract：:Idiopathic thrombocytopenic purpura (ITP) is an illness of primary acquired thrombocytopenia occurring in the absence of marrow failure. Splenectomy was first used as a treatment for ITP in 1913. However, with the realization that opsonin (critical for the optimal killing of invasive micro-organisms by white blood cel...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1016/s0037-1963(00)90114-8
更新日期：2000-01-01 00:00:00
abstract：:The cyclophosphamide, vincristine, prednisone, bleomycin, doxorubicin, procarbazine (COP-BLAM) programs of combination chemotherapy were administered to patients with advanced diffuse large cell lymphoma. The original COP-BLAM programs were designed to deliver intense multidrug therapy maximizing tumor kill. COP-BLAM ...
journal_title：Seminars in hematology
pub_type： 杂志文章
doi：
更新日期：1988-04-01 00:00:00
abstract：:Indolent non-Hodgkin lymphoma (NHL) comprises a group of incurable, generally slow-growing lymphomas highly responsive to initial therapy, with a relapsing and progressive course. Rituximab, an anti-CD20 antibody, has had a large impact on the treatment of indolent NHL. Its effectiveness as a single agent and in conju...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2010.01.003
更新日期：2010-04-01 00:00:00
abstract：:Myelodysplastic syndrome (MDS) with deletion 5q (del(5q)) is a distinct clinical and pathological disease subset that is exquisitely sensitive to lenalidomide for the treatment of red blood cell transfusion-dependent anemia. Although lenalidomide has erythropoeitic promoting activity in MDS without del(5q) (non-del(5q...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2017.06.003
更新日期：2017-07-01 00:00:00
abstract：:The inhibitor titer is the most important clinical measurement in inhibitor patients, and the Nijmegen method is preferable to the original and well-established Bethesda assay for this purpose; however, both methods have high inter-laboratory variability. Monitoring inhibitor patients after treatment with bypassing ag...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2008.03.002
更新日期：2008-04-01 00:00:00
abstract：:Thrombopoietin (TPO) regulates thrombopoiesis through activation of TPO receptors on the megakaryocyte cell surface, resulting in increased platelet production. The TPO receptor agonists are novel treatments for patients with chronic ITP aimed at increasing platelet production through interactions with the TPO recepto...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2013.03.005
更新日期：2013-01-01 00:00:00
abstract：:Chronic lymphocytic leukemia (CLL) is a clonal proliferation of mature-appearing, but maturationally immature B cells; T cells are rarely involved. Most data suggest that CLL cells are frozen at an early step in maturation; this can be overcome by several techniques such as in vitro incubation with tumor promotors. Al...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1987-10-01 00:00:00
abstract：:Thrombocytopenia is common among sick neonates, affecting 20% to 35% of all patients admitted to the neonatal intensive care unit (NICU). While most cases of neonatal thrombocytopenia are mild or moderate and resolve within 7 to 14 days with appropriate therapy, 2.5% to 5% of NICU patients develop severe thrombocytope...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2010.04.002
更新日期：2010-07-01 00:00:00
abstract：:Despite the development of more effective therapies for multiple myeloma (MM) over the past decade, nearly all patients will eventually experience disease relapse and require further therapy. Designing the next generation of therapies for relapsed and refractory disease will depend on understanding the complex molecul...
journal_title：Seminars in hematology
pub_type： 杂志文章
doi：10.1053/j.seminhematol.2012.05.005
更新日期：2012-07-01 00:00:00
abstract：:The experiments reviewed here establish that surface components and surface functions can assume predictable, asymmetric patterns within the continuous plasma membranes of mammalian leukocytes. Recent biophysical and morphological studies show that receptor redistribution can occur very rapidly and that a unique geome...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1983-10-01 00:00:00
abstract：:Over the past 2 decades, treatment of Hodgkin's disease has evolved considerably through innovations in the management of various stages. The impact of various treatments on the 5-, 10-, and 15-year results is being balanced against delayed morbidity, such as organ damage and second malignancies, produced by the inten...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1988-04-01 00:00:00
