Abstract:
PURPOSE OF REVIEW:Hematopoietic stem cells (HSCs) possess two fundamental characteristics, the capacity for self-renewal and the sustained production of all blood cell lineages. The fine balance between HSC expansion and lineage specification is dynamically regulated by the interplay between external and internal stimuli. This review introduces recent advances in the roles played by the stem cell niche, regulatory transcriptional networks, and metabolic pathways in governing HSC self-renewal, commitment, and lineage differentiation. We will further focus on discoveries made by studying hematopoiesis at single-cell resolution. RECENT FINDINGS:HSCs require the support of an interactive milieu with their physical position within the perivascular niche dynamically regulating HSC behavior. In these microenvironments, transcription factor networks and nutrient-mediated regulation of energy resources, signaling pathways, and epigenetic status govern HSC quiescence and differentiation. Once HSCs begin their lineage specification, single-cell analyses show that they do not become oligopotent but rather, differentiate directly into committed unipotent progenitors. SUMMARY:The diversity of transcriptional networks and metabolic pathways in HSCs and their downstream progeny allows a high level of plasticity in blood differentiation. The intricate interactions between these pathways, within the perivascular niche, broaden the specification of HSCs in pathological and stressed conditions.
journal_name
Curr Opin Hematoljournal_title
Current opinion in hematologyauthors
Pouzolles M,Oburoglu L,Taylor N,Zimmermann VSdoi
10.1097/MOH.0000000000000260subject
Has Abstractpub_date
2016-07-01 00:00:00pages
311-7issue
4eissn
1065-6251issn
1531-7048journal_volume
23pub_type
杂志文章,评审abstract:PURPOSE OF REVIEW:Chronic idiopathic and severe congenital neutropenias are rare disorders for which recent discoveries have highlighted mechanisms and consequences. RECENT FINDINGS:An inflammatory bone marrow milieu has been shown to be a major contributor to the pathophysiology of chronic idiopathic neutropenia. Act...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e3282f172d3
更新日期:2008-01-01 00:00:00
abstract::Recent studies have improved our understanding of the cytogenesis, biology, and therapy of chronic lymphocytic leukemia (CLL). This review highlights this recent progress reported over the past year. We have improved our understanding of the cytogenetic abnormalities in CLL and soon may see identification of new tumor...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-199807000-00003
更新日期:1998-07-01 00:00:00
abstract:PURPOSE OF REVIEW:This review focuses on adaptive bacterial interactions with neutrophils, emphasizing information communicated within the past year about bacterial factors that respond to contact with or phagocytosis by PMN. RECENT FINDINGS:Since the discovery of type III and IV secretion, progress in the analysis of...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-200401000-00002
更新日期:2004-01-01 00:00:00
abstract:PURPOSE OF REVIEW:Hematopoietic stem cell (HSC) transplantation is the most powerful treatment modality for a variety of hematological disorders. Successful hematopoietic recovery after transplantation depends on optimal homing of HSCs to the bone marrow and subsequent lodging in the HSC niche. The molecular mechanisms...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e32834760e5
更新日期:2011-07-01 00:00:00
abstract:PURPOSE OF REVIEW:Core binding factor acute myeloid leukemia (CBF-AML) corresponds to two distinct subtypes of AML characterized by recurrent favorable chromosome translocations, namely t(8;21) and inv(16)/t(16;16). Given the relatively good outcome of patients with CBF-AML, when treated with intensive chemotherapy inc...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e3283257b18
更新日期:2009-03-01 00:00:00
abstract:PURPOSE OF REVIEW:Type 1 von Willebrand disease (VWD) is the most common form of VWD, but has remained [corrected] the least well understood. Recent work is changing this situation. This review summarizes recent analysis of the genetic basis of the disease. RECENT FINDINGS:Linkage analysis demonstrates that dominantly...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e32826f4b41
更新日期:2007-09-01 00:00:00
abstract:PURPOSE OF REVIEW:Barth syndrome (BTHS) is a mitochondrial disorder characterized by neutropenia, among other defects. As yet, the correlation between the mitochondrial defect in BTHS and the neutropenia observed in these patients is unclear. In this review, we hope to shed some light upon the correlation between the m...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e32831c83f3
更新日期:2009-01-01 00:00:00
abstract::Over the past year, substantial progress was made toward understanding transcriptional control of red cell differentiation. Complementary DNAs encoding two novel erythroid-restricted transcription factors--globin locus control region regulatory factor NF-E2 and CACC-binding protein EKLF--were cloned and characterized....
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:
更新日期:1994-03-01 00:00:00
abstract:PURPOSE OF REVIEW:Despite parenteral artesunate therapy, the fatality rate of cerebral malaria remains high. Adjunctive therapy targeting the underlying pathophysiology of cerebral malaria may further improve the clinical outcome. Endothelial activation and dysfunction is a central process in the pathogenesis of cerebr...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e328345a4cf
更新日期:2011-05-01 00:00:00
abstract::Multiple myeloma is the second most common hematologic malignancy, with approximately 15,000 new cases each year in the United States. Our understanding of the pathophysiology underlying myeloma continues to expand, but the cause of this plasma cell dyscrasia remains unclear. Though controversy remains regarding a pos...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-200007000-00007
更新日期:2000-07-01 00:00:00
abstract:PURPOSE OF REVIEW:Technical possibilities to screen for inborn errors of immune function at the neonatal stage have been rapidly progressing, whereas the guidelines that apply for the evaluation of benefits and concerns on expanding screening panels have not been broadly discussed for primary immunodeficiency diseases ...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e32835a9130
更新日期:2013-01-01 00:00:00
abstract:PURPOSE OF REVIEW:The treatment of patients with refractory or relapsed acute myeloid leukemia remains challenging. Management of these patients must take into account patient and leukemia-related factors in order to organize a comprehensive approach to treatment. Many new therapies are under study. RECENT FINDINGS:Ne...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e32801684ef
更新日期:2007-03-01 00:00:00
abstract:PURPOSE OF REVIEW:Although several clinical studies have investigated the effects of different treatment periods in subjects after a VTE event, the optimal duration of oral anticoagulation is still uncertain. Our review focused on studies that evaluated different risk factors that might be useful to stratify patients i...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/01.moh.0000132310.18883.c0
更新日期:2004-05-01 00:00:00
abstract::Stem cells continue to attract considerable attention and provide hope for the development of new cell-based therapies for degenerative diseases. Unlocking the full therapeutic potential of stem cells requires an understanding of the mechanisms by which they are generated, self-renew, and differentiate. The applicatio...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-200305000-00005
更新日期:2003-05-01 00:00:00
abstract::Acute chest syndrome (ACS) is the presence of a new pulmonary infiltrate in combination with fever or respiratory symptoms in a patient with sickle cell disease. ACS is the leading cause of death in sickle cell disease, and many patients suffer from multiple, severe episodes. Age has a striking effect on the clinical ...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-199803000-00002
更新日期:1998-03-01 00:00:00
abstract::A variety of agents are available to improve hemostasis and reduce blood loss in multiple clinical settings. These agents are most commonly used to reduce bleeding when an underlying hemostatic defect is present. Some new agents offer the potential to decrease blood loss even in the absence of an obvious underlying he...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-200211000-00014
更新日期:2002-11-01 00:00:00
abstract::Anemia is a common disorder in patients with cancer and can be caused by the disease itself or by cancer-related therapy. The cardinal symptom of anemia, fatigue, is the most commonly reported symptom in patients with cancer and has profound effects on patient well-being and quality of life. Until recently, blood tran...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-200205000-00010
更新日期:2002-05-01 00:00:00
abstract:PURPOSE OF REVIEW:To review the data on angiogenesis related to exosomes secreted by tumor cells in hematologic neoplasia and to elucidate the role of exosomes and exosomal miRNA in the bone marrow microenvironment, especially under hypoxic conditions. RECENT FINDINGS:Cross-talk between bone marrow tumor cells and sur...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0000000000000235
更新日期:2016-05-01 00:00:00
abstract:PURPOSE OF REVIEW:In addition to the crucial role of vascular endothelial growth factor (VEGF)A in vessel development, it has become apparent that the VEGF signaling pathway (VSP) plays an important role during adulthood in the maintenance of tissue homeostasis in normal physiological processes, as well as in pathologi...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e32833865e6
更新日期:2010-05-01 00:00:00
abstract::In 1994 four biotechnology research groups reported the isolation and cloning of the ligand for the cytokine receptor c-Mpl and showed it to be the long-sought regulator of platelet production, thrombopoietin. Thrombopoietin is a hematopoietic growth factor of 332 amino acids composed of an amino terminal domain homol...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-199502030-00002
更新日期:1995-05-01 00:00:00
abstract:PURPOSE OF REVIEW:Hematopoietic cell transplantation offers potentially curative therapy for patients with myelodysplastic syndrome. The median patient age at diagnosis, however, is about 70 years, which has limited the application of conventional hematopoietic cell transplantation. In addition, the optimum timing of t...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/01.moh.0000208466.63861.9f
更新日期:2006-03-01 00:00:00
abstract::Stem cell factor is an early-acting hematopoietic cytokine that probably functions constitutively to support the proliferation and survival of pluripotent progenitor cells and to increase their receptivity to lineage commitment and differentiation in response to lineage-specific cytokines. Stem cell factor also can in...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-199603030-00010
更新日期:1996-05-01 00:00:00
abstract:PURPOSE OF THE REVIEW:Monitoring for residual leukemic burden is an integral part of ongoing evaluation in chronic myeloid leukemia. With high rates of complete cytogenetic response induced by imatinib and other tyrosine kinase inhibitors, exploring refinements in current methods of minimal residual disease monitoring ...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e3282f42898
更新日期:2008-03-01 00:00:00
abstract:PURPOSE OF REVIEW:To discuss how mechanical cues and Rho signaling contribute to control of vascular development and hematopoiesis. RECENT FINDINGS:Rho guanine trinucleotide phosphatases are ubiquitious regulators of cytoskeletal structure and tension generation. Recent work shows that Rho-dependent mechanical interac...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e3282fa7445
更新日期:2008-05-01 00:00:00
abstract:PURPOSE OF REVIEW:Deficiency of antithrombin, protein C, and protein S increases the risk of a first venous thromboembolism (VTE) by at least 10-fold and is rare (i.e., <0.5% of population), whereas factor V Leiden and the prothrombin G20210A gene increase this risk by 2-5-fold and are common (2-5% of whites). Antiphos...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e328356745b
更新日期:2012-09-01 00:00:00
abstract:PURPOSE OF REVIEW:This article reviews recent publications that bear on the evidential basis for therapeutic apheresis in diseases in which hemolytic anemia is a prominent feature. RECENT FINDINGS:Therapeutic plasma exchange continues to be reported sporadically in severe autoimmune hemolytic anemia, with inconsistent...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e3282c8ca66
更新日期:2007-11-01 00:00:00
abstract:PURPOSE OF REVIEW:In response to agonists produced at vascular lesions, platelets release a host of components from their three granules: dense core, alpha, and lysosome. This releasate activates other platelets, promotes wound repair, and initiates inflammatory responses. Although widely accepted, the specific mechani...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e328309ec74
更新日期:2008-09-01 00:00:00
abstract:PURPOSE OF REVIEW:The identification of regulatory T cells (Tregs) as regulators of immunological self-tolerance has stimulated tremendous interest in the field. Over the past 12 months, new studies have added greatly to our understanding of the role of Tregs in autoimmune disease, details of which are presented here. ...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e32832a9a01
更新日期:2009-07-01 00:00:00
abstract::Matching for human leukocyte antigen (HLA) loci is the most crucial factor in the selection of bone marrow donors. The techniques utilized to assign HLA type have evolved significantly since the application of polymerase chain reaction-based methodologies. A significant challenge for DNA typing methodologies is to be ...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-199811000-00012
更新日期:1998-11-01 00:00:00
abstract::Neutropenia is often attributed to immunologically mediated injury to mature neutrophils or their precursors. Clinically it is useful to classify immune mediated neutropenias as isoimmune, autoimmune (including some drug-associated neutropenias), and idiopathic (cases possibly with an immune mechanism). Isoimmune neut...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-199801000-00006
更新日期:1998-01-01 00:00:00