Hematol Transfus Cell Ther
December 2024
Introduction: The BV-AVD (Brentuximab vedotin, doxorubicin, vinblastine, and dacarbazine) combination for first-line treatment of advanced stage Hodgkin's lymphoma has been approved by regulatory authorities and included in international guidelines. However, several factors influence its incorporation as standard of care.
Materials And Methods: A group of experts from different institutions was identified and, using the Delphi method, an analysis of the results of the ECHELON 1 trial for the indication of BV-AVD over ABVD (doxorubicin hydrochloride, bleomycin sulfate, vinblastine sulfate, dacarbazine) in patients with Hodgkin's lymphoma Stages III and IV in Argentina was done.
Chromosomal 1p duplications are a rarity, with minimal literature on the topic. As a result, it is useful to document patient presentations with this defect to help guide the management and treatment of future patients with this genetic abnormality. We present a successful case report of a patient with a chromosome 1p31.
View Article and Find Full Text PDFIntroduction: Small bowel diverticula are a rare entity and are mostly found in the duodenum on diagnosis. Some common complications of this pathology include bleeding, obstruction, diverticulitis, and perforation. Furthermore, there is growing evidence supporting an association between biologic therapies and spontaneous intestinal perforation.
View Article and Find Full Text PDFPeripheral T-cell lymphomas (PTCLs) are a heterogeneous group of haematological cancers with generally poor clinical outcomes. However, a subset of patients experience durable disease control, and little is known regarding long-term outcomes. The International T-cell Lymphoma Project (ITCLP) is the largest prospectively collected cohort of patients with PTCLs, providing insight into clinical outcomes at academic medical centres globally.
View Article and Find Full Text PDFBone is the most common site of breast cancer metastasis. Bone metastasis is incurable and is associated with severe morbidity. Utilizing an immunocompetent mouse model of spontaneous breast cancer bone metastasis, we profiled the immune transcriptome of bone metastatic lesions and peripheral bone marrow at distinct metastatic stages, revealing dynamic changes during the metastatic process.
View Article and Find Full Text PDFClassic Hodgkin lymphoma (HL) is rare disease, with an incidence of approximately 85,000 patients globally per year and a predilection for adolescents and young adults (ages 15-39). Since the introduction of combination chemotherapy in the 1960's and radiation dating back to the early 1900's, therapeutic options and by extension, clinical outcomes have improved dramatically with 5-year overall survival (OS) approaching 90% today. [1](#ref-0001) Advances in understanding HL biology have additionally facilitated development of targeted agents and immunotherapy which have further improved short and long-term outcomes.
View Article and Find Full Text PDFFollicular lymphoma is the most common indolent lymphoma accounting for approximately 20%-25% of all new non-Hodgkin lymphoma diagnoses in western countries. Whilst outcomes are mostly favorable, the spectrum of clinical phenotypes includes high-risk groups with significantly inferior outcomes. This review discusses recent updates in risk stratification and treatment approaches from upfront treatment for limited and advanced stage follicular lymphoma to the growing options for relapsed, refractory disease with perspectives on how to approach this from a personalized lens.
View Article and Find Full Text PDFSince the publication of the Revised European-American Classification of Lymphoid Neoplasms in 1994, subsequent updates of the classification of lymphoid neoplasms have been generated through iterative international efforts to achieve broad consensus among hematopathologists, geneticists, molecular scientists, and clinicians. Significant progress has recently been made in the characterization of malignancies of the immune system, with many new insights provided by genomic studies. They have led to this proposal.
View Article and Find Full Text PDFChronic lymphocytic leukemia (CLL) is the most common mature B-cell neoplasm in the West. IGHV4-34 is one of the most frequently used genes in CLL patients, which usually display an indolent outcome. In this study, we explored the mutational profile of CLL patients expressing IGHV4-34 within different stereotypes and their association with prognostic factors and clinical outcome.
View Article and Find Full Text PDFIndividuals with malignancies and COVID-19 have a lower survival compared with the general population. However, the information about the impact of COVID-19 on the whole hematological population is scarce. We aimed to describe the 30th day overall survival (OS) after COVID-19 infection in patients with a hematological disease in Argentina.
View Article and Find Full Text PDFTumor relapse as a consequence of chemotherapy resistance is a major clinical challenge in advanced stage breast tumors. To identify processes associated with poor clinical outcome, we took a mass spectrometry-based proteomic approach and analyzed a breast cancer cohort of 113 formalin-fixed paraffin-embedded samples. Proteomic profiling of matched tumors before and after chemotherapy, and tumor-adjacent normal tissue, all from the same patients, allowed us to define eight patterns of protein level changes, two of which correlate to better chemotherapy response.
View Article and Find Full Text PDFThe treatment of classic Hodgkin lymphoma (HL) is a success in onco-hematology. Despite the high cure rate of HL with initial therapy, 5-10% of patients are primary refractory and 10-20% will eventually relapse. The standard treatment for these patients is salvage chemotherapy and autologous stem cell transplantation (ASCT).
View Article and Find Full Text PDFThe role of Ann Arbor staging in determining treatment intensity after achieving a negative positron emission tomography (PET) has not been established in classical Hodgkin lymphoma (cHL). Patients with stage I-IV cHL, received three cycles of ABVD (doxorubicin, bleomycin, vinblastine, dacarbazine) and an interim PET scan (PET3). PET3-negative patients received no further therapy.
View Article and Find Full Text PDFEffectiveness of enhanced recovery program is being earnestly confirmed in various surgical areas. Certain aspects of fast track rehabilitation are analyzed in the article.
View Article and Find Full Text PDFBackground: The main bottleneck for genomic studies of tumors is the limited availability of fresh frozen (FF) samples collected from patients, coupled with comprehensive long-term clinical follow-up. This shortage could be alleviated by using existing large archives of routinely obtained and stored Formalin-Fixed Paraffin-Embedded (FFPE) tissues. However, since these samples are partially degraded, their RNA sequencing is technically challenging.
View Article and Find Full Text PDFActivating D816 mutations of the class III receptor tyrosine kinase are associated with the majority of patients with systemic mastocytosis (SM), but also core binding factor (CBF) AML, making mutations attractive therapeutic targets for the treatment of these cancers. Crenolanib is a potent and selective inhibitor of wild-type as well as mutant isoforms of the class III receptor tyrosine kinases FLT3 and PDGFRα/β. Notably, crenolanib inhibits constitutively active mutant-FLT3 isoforms resulting from amino acid substitutions of aspartic acid at codon 835, which is homologous to codon 816 in the gene - suggesting sensitivity against mutant-KIT D816 isoforms as well.
View Article and Find Full Text PDFInflammation and thrombosis occur together in many diseases. The leukocyte integrin Mac-1 (also known as integrin αβ, or CD11b/CD18) is crucial for leukocyte recruitment to the endothelium, and Mac-1 engagement of platelet GPIbα is required for injury responses in diverse disease models. However, the role of Mac-1 in thrombosis is undefined.
View Article and Find Full Text PDFMantle cell lymphoma (MCL) is a heterogeneous B-cell lymphoid malignancy where most patients follow an aggressive clinical course whereas others are associated with an indolent performance. SOX4, SOX11, and SOX12 belong to SOXC family of transcription factors involved in embryonic neurogenesis and tissue remodeling. Among them, SOX11 has been found aberrantly expressed in most aggressive MCL patients, being considered a reliable biomarker in the pathology.
View Article and Find Full Text PDFActa Crystallogr D Biol Crystallogr
December 2014
The aspartate pathway is essential for the production of the amino acids required for protein synthesis and of the metabolites needed in bacterial development. This pathway also leads to the production of several classes of quorum-sensing molecules that can trigger virulence in certain microorganisms. The second enzyme in this pathway, aspartate β-semialdehyde dehydrogenase (ASADH), is absolutely required for bacterial survival and has been targeted for the design of selective inhibitors.
View Article and Find Full Text PDFActa Crystallogr F Struct Biol Commun
October 2014
Homoserine O-acetyltransferase (HTA) catalyzes the formation of L-O-acetyl-homoserine from L-homoserine through the transfer of an acetyl group from acetyl-CoA. This is the first committed step required for the biosynthesis of methionine in many fungi, Gram-positive bacteria and some Gram-negative bacteria. The structure of HTA from Staphylococcus aureus (SaHTA) has been determined to a resolution of 2.
View Article and Find Full Text PDFCanavan disease (CD) is a fatal, childhood neurological disorder caused by mutations in the ASPA gene, leading to catalytic deficiencies in the aspartoacylase (ASPA) enzyme and impaired N-acetyl-l-aspartic acid metabolism in the brain. To study the possible structural defects triggered by these mutations, four ASPA missense mutations associated with different disease severities have been structurally characterized. These mutant enzymes each have overall structures similar to that of the native ASPA enzyme, but with varying degrees of alterations that offer explanations for the respective loss of catalytic activity.
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