Abstract:
:The bulk of antigens that are presented by major histocompatibility complex (MHC) class I molecules are processed in the cytosol. Therefore, the cellular protein degradation machinery is thought to play a major role in antigen processing. For example, there is clear evidence that the ubiquitin-proteasome pathway, the major proteolytic pathway in the cytosol, plays a role in the processing of class I-associated antigens. In addition, peptide chaperones must exist to properly target peptides to the transporter associated with antigen processing. Here, the author reviews some of the more important advances over the past year that further define the pathways of antigen breakdown in the cytosol. This includes a look at the distinctive roles of proteasomes versus immunoproteasomes, the isolation of peptide processing intermediates in the cytosol, and the role of defective ribosomal products. These findings highlight the importance of understanding basic cellular protein degradation pathways in antigen processing.
journal_name
Curr Opin Hematoljournal_title
Current opinion in hematologyauthors
Androlewicz MJdoi
10.1097/00062752-200101000-00003keywords:
subject
Has Abstractpub_date
2001-01-01 00:00:00pages
12-6issue
1eissn
1065-6251issn
1531-7048journal_volume
8pub_type
杂志文章,评审abstract::Many aspects of leukocyte function are regulated by both heterotrimeric and Ras-related GTP-binding proteins, but there is little definite information about their roles in the specialized processes utilized by leukocytes for cell killing. Recent progress in understanding the regulation of the phagocyte NADPH oxidase b...
journal_title:Current opinion in hematology
pub_type: 杂志文章
doi:
更新日期:1994-01-01 00:00:00
abstract::FLT3 is the most frequently mutated gene in cases of acute myelogenous leukemia (AML). About 30 to 35% of patients have either internal tandem duplications (ITDs) in the juxtamembrane domain or mutations in the activating loop of FLT3. FLT3 mutations occur in a broad spectrum of FAB subtypes in adult and pediatric AML...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-200207000-00003
更新日期:2002-07-01 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:In this article, we summarize the recent advances in treating primary immune deficiency (PID) disorders by stem cell transplantation (SCT); we have focused on articles published in the past 2 years since the last major review of SCT for PID. RECENT FINDINGS:Analyses of the outcomes of SCT for PID by ...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e328365a13b
更新日期:2013-11-01 00:00:00
abstract::Cytomegalovirus (CMV) infection remains a major cause of morbidity and mortality in recipients of an allogeneic stem cell transplant (SCT). Due to the broad application of antiviral prophylaxis and preemptive therapy, a decrease in early-onset and a subsequent increase in late-onset CMV disease has been observed. New ...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-199811000-00022
更新日期:1998-11-01 00:00:00
abstract:PURPOSE OF REVIEW:The antiphospholipid syndrome (APS) is a systemic autoimmune disorder characterized by recurrent thrombosis and/or obstetrical morbidity in the presence of persistently positive antiphospholipid antibodies. Recent insights into the pathogenesis of APS have begun to elucidate pathophysiology and led to...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0000000000000067
更新日期:2014-09-01 00:00:00
abstract::Modern molecular technology helped identify more than 10 protein tyrosine kinases related to myeloid malignancies, which allowed the development of small molecule inhibitors targeting deregulated protein tyrosine kinase activity. Protein tyrosine kinase deregulation can occur as a consequence of fusion gene formation ...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-200301000-00007
更新日期:2003-01-01 00:00:00
abstract::Commitment of hematopoietic cells to the erythroid lineage involves the actions of several transcription factors, including TAL1, LMO2, and GATA-2. The differentiation of committed erythroid progenitor cells involves other transcription factors, including NF-E2 and EKLF. Upon binding erythropoietin, the principal regu...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-200203000-00002
更新日期:2002-03-01 00:00:00
abstract::This overview concentrates on familial and congenital polycythemias in the context of other polycythemic disorders, with emphasis on those with established molecular lesions. Recent advances in the regulation of erythropoiesis, as they may relate to polycythemic states, are discussed as a background for those well-def...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-199903000-00008
更新日期:1999-03-01 00:00:00
abstract:PURPOSE OF REVIEW:Endothelial cells dysfunctions are crucial determinants of several human diseases. We review here the most recent reports on endothelial cell defects in cerebral cavernous malformations (CCMs), particularly focusing on adherens junctions. CCM is a vascular disease that affects specifically the venous ...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0000000000000338
更新日期:2017-05-01 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
abstract:PURPOSE OF REVIEW:This review focuses on recent advances in the use of immune-based therapy to treat patients with refractory and relapsing acquired thrombotic thrombocytopenic purpura. RECENT FINDINGS:Advances in understanding of the pathophysiology of idiopathic thrombotic thrombocytopenic purpura have provided the ...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/01.moh.0000170534.33517.99
更新日期:2005-09-01 00:00:00
abstract::The search for, and discovery of, a physiologic model in which the developmentally regulated switch from fetal to adult globin gene expression could be prevented has resulted in the development of a new class of therapeutic agents, consisting of simple fatty acids, such as butyric acid, for the treatment of the beta-h...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-199502020-00002
更新日期:1995-03-01 00:00:00
abstract::Hematopoietic stem cells are the cells primarily responsible for short term and long term hematological reconstitution when a graft is infused into a myeloablated host. The number and quality of hematopoietic stem cells within a graft are the major determinants of the time to and durability of hematological reconstitu...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-199905000-00010
更新日期:1999-05-01 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:PURPOSE OF REVIEW:Immune responses to commensal bacteria and resulting chronic inflammation are hallmarks of inflammatory bowel disease. Considerable evidence has accumulated to suggest that innate immune defense mechanisms interact with pro-inflammatory pathways and exacerbate or perhaps even initiate development of i...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-200701000-00010
更新日期:2007-01-01 00:00:00
abstract:PURPOSE OF REVIEW:Obesity has become a worldwide epidemic that is driving increased morbidity and mortality from thrombotic disorders such as myocardial infarction, stroke, and venous thromboembolism. Effective prevention and treatment of thrombosis in obese patients is limited by an incomplete understanding of the und...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e3283634443
更新日期:2013-09-01 00:00:00
abstract:PURPOSE OF REVIEW:The advent of tyrosine kinase inhibitors (TKI) has remarkably changed the treatment of chronic myeloid leukemia (CML). Patients treated in chronic phase can enjoy an expected survival similar to the general population. In the last few years we have found that some patients with an excellent therapeuti...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0000000000000224
更新日期:2016-03-01 00:00:00
abstract::Hematopoietic stem cells, defined as cells with extensive self-renewal and pluripotent differentiation potential, represent a minor population of adult bone marrow (< 1 in 10(4) to 10(5) nucleated marrow cells). Recent advances in cell surface phenotype analysis and separation technology have permitted enrichment of h...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:
更新日期:1994-05-01 00:00:00
abstract::This article presents the most recent insights into the biology, prognostic significance, and therapeutic approaches to TEL/AML1-positive leukemia. The TEL/AML1 fusion gene, also known as ETV6 /CBFA2, is the most commonly occurring gene rearrangement in pediatric acute lymphoblastic leukemia (ALL). Considerable contro...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-200207000-00013
更新日期:2002-07-01 00:00:00
abstract:PURPOSE OF REVIEW:Infantile hemangioma is a common vascular tumor with a unique lifecycle: rapid growth in infancy, followed by a period of involution, leading to complete regression. This review summarizes recent studies of molecular mechanisms of hemangioma formation and places new findings and hypotheses in the cont...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e32832a07ff
更新日期:2009-05-01 00:00:00
abstract::The reconstitution of T-cell populations is a critical component of immune recovery after allogeneic stem cell transplantation. Recent studies have used new techniques to focus on the interplay of thymopoiesis and peripheral expansion that defines T-cell repopulation. Peripheral expansion, driven by host cytokines and...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-200211000-00004
更新日期:2002-11-01 00:00:00
abstract:PURPOSE OF REVIEW:Fibroblast growth factor (FGF) signaling activates many bone marrow cell types, including various stem cells, osteoblasts, and osteoclasts. However, the role of FGF signaling in regulation of normal and leukemic stem cells is poorly understood. This review highlights the physiological roles of FGF sig...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e3283606162
更新日期:2013-05-01 00:00:00
abstract:PURPOSE OF REVIEW:The leukocyte adhesion deficiency (LAD) syndromes are rare genetically determined conditions with challenging clinical features. These immunodeficiencies also provide insights that are broadly relevant to the biology of leukocytes, platelets, intercellular interactions, and intracellular signaling. Re...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e32835a0091
更新日期:2013-01-01 00:00:00
abstract:PURPOSE OF REVIEW:In this review, we focus on three specific concepts related to platelet transfusion in the neonatal and pediatric population: choice of transfusion threshold; use of ABO-mismatched platelets; transfusion of pathogen-reduced or inactivated platelets. RECENT FINDINGS:Recent trials support the use of lo...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0000000000000542
更新日期:2019-11-01 00:00:00
abstract::Leukocytes use an array of antimicrobial peptides and proteins to help them destroy invading microorganisms. These endogenous antibiotic molecules are remarkable for their structural variety, rapid evolutionary divergence, intraspecies variation, and complex yet subtle interactions with their targets. This arsenal has...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-199704010-00009
更新日期:1997-01-01 00:00:00
abstract:PURPOSE OF REVIEW:To outline the rationale, limitations, and execution of bloodless medical and surgical programs, highlighting characteristics that contribute to successful outcomes. RECENT FINDINGS:Clinical experiences with patients who refuse blood transfusions for religious reasons have provided valuable lessons a...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/01.moh.0000245692.32085.bd
更新日期:2006-11-01 00:00:00
abstract:PURPOSE OF REVIEW:Therapy-related myelodysplastic syndromes and acute myelogenous leukemia (t-MDS/AML) comprise an increasingly common, poor-risk disease cohort without standard treatment options. This review describes available treatments and recent advances that may influence the clinical management of t-MDS/AML. RE...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/MOH.0b013e32835d82e6
更新日期:2013-03-01 00:00:00
abstract::Gene transfer has allowed a number of biologic issues in the therapy of hematologic malignancy to be addressed. In autologous bone marrow transplantation, gene marking studies have shown that infused marrow contributes to relapse in acute myeloid leukemia, neuroblastoma, and chronic myeloid leukemia. In addition, doub...
journal_title:Current opinion in hematology
pub_type: 杂志文章,评审
doi:10.1097/00062752-199502060-00004
更新日期:1995-11-01 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