Publications by authors named "Zuckerman T"

The prevalence of anti-CD20 monoclonal antibody (MoAb)-associated delayed-onset neutropenia (DON) varies between 8 and 27%. Despite the wide use of MoAbs as maintenance in follicular lymphoma (FL), data regarding DON occurrence and clinical consequences are limited. This study assessed DON prevalence, severity and risk factors in FL patients during maintenance.

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Venetoclax (Ven) plus hypomethylating agents are considered standard-of-care for patients with acute myeloid leukemia (AML) judged ineligible for intensive chemotherapy (IC). Real-world studies complement clinical trials, since patterns of patient selection, treatment-exposure and post-remission management may vary. This prospective observational multi-center study included 209 newly diagnosed IC-ineligible patients with a median age 75 years (interquartile range, 71-81 years).

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Resistance to chemotherapy remains a major hurdle to the cure of Acute Myeloid Leukemia (AML) patients. Recent studies indicate a minority of malignant cells, termed drug-tolerant persisters (DTPs), stochastically upregulate stress pathways to evade cell death upon acute exposure to chemotherapy without acquiring new genetic mutations. This chemoresistant state is transient and the cells return to baseline after removal of chemotherapy.

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Introduction: Systemic sclerosis is a complex disease that affects various target organs, making it difficult to assess response and determine remission or relapse. A baseline Neutrophil-to-Lymphocyte Ratio (NLR) >2.95 is associated with severe progressive skin and lung disease and decreased 5-year survival in systemic sclerosis (SSc).

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Background: Uncertainty exists as to the role of fluoroquinolone (FQ) prophylaxis for patients undergoing allogeneic haematopoietic stem cell transplantation (HSCT) in the era of rising antibiotic resistance.

Objectives: We aimed to evaluate rates of bloodstream infections (BSI), resistance patterns and outcomes of patients after discontinuing routine FQ prophylaxis administration.

Methods: All adult recipients of first HSCT from 2017 to 2020 were retrospectively included and classified according to time of HSCT as FQ group (HSCT January 2017-December 2018) or no FQ group (January 2019-December 2020).

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Introduction: Chimeric antigen receptor T (CAR-T) cell therapy, emerging as an efficient treatment option for patients with secondary central nervous system (CNS) lymphoma, is frequently complicated with immune effector cell-associated neurotoxicity syndrome (ICANS).

Case Presentation: We report a case of a 64-year-old woman with transformed follicular lymphoma, developing high-grade ICANS with eosinophilic pleocytosis following third-line therapy with CAR-T cells (tisagenlecleucel). During bridging therapy, she declined neurologically and was diagnosed with secondary CNS lymphoma.

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Article Synopsis
  • Nocardiosis is a serious infection that can occur after hematopoietic cell transplantation (HCT), and this study aimed to identify its risk factors and the impact of certain preventive treatments.
  • A review of 64 cases of nocardiosis and 128 matched controls showed that factors like tacrolimus use, low lymphocyte counts, male sex, recent corticosteroid use, and previous CMV infections increased the risk of developing this infection.
  • Conversely, patients on trimethoprim-sulfamethoxazole prophylaxis had a significantly lower risk of nocardiosis; however, those who did develop it had poorer survival rates compared to controls.
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  • CAR-T cell therapy represents a major advancement in cancer treatment, harnessing engineered T-cells to target specific antigens on cancer cells, and has received approval in several countries for certain types of lymphoma and leukemia.
  • Despite its potential for long-term remission and cures in patients with poor prognoses, the therapy comes with significant side effects that require specialized management both during and after treatment.
  • Ongoing research aims to develop new CAR-T constructs and treatment indications to enhance the safety and effectiveness of this innovative therapy.
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  • Congenital neutropenias in Israel show a diverse genetic landscape, with a focus on severe cases, particularly highlighting the prevalence of G6PC3 variants in consanguineous populations.
  • A total of 65 patients were analyzed, revealing that the majority of severe cases were linked to ELANE and G6PC3 mutations, while some had other genetic variants or conditions like cyclic neutropenia or Shwachman-Diamond syndrome.
  • The study emphasizes the importance of ongoing monitoring for patients due to a significant occurrence of myeloid transformation, indicating gaps in medical understanding as some patients remain without a clear genetic diagnosis.
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Autoimmune diseases (ADs) are characterized by loss of immune tolerance, high chronicity, with substantial morbidity and mortality, despite conventional immunosuppression (IS) or targeted disease modifying therapies (DMTs), which usually require repeated administration. Recently, novel cellular therapies (CT), including mesenchymal stromal cells (MSC), Chimeric Antigen Receptors T cells (CART) and regulatory T cells (Tregs), have been successfully adopted in ADs. An international expert panel of the European Society for Blood and Marrow Transplantation and the International Society for the Cell and Gene Therapy, reviewed all available evidence, based on the current literature and expert practices, on use of MSC, CART and Tregs, in AD patients with rheumatological, neurological, and gastroenterological indications.

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Acute graft-versus-host disease (aGvHD) is a serious complication of allogeneic hematopoietic stem-cell transplantation with limited treatment options. The gut microbiome plays a critical role in aGvHD pathogenesis. Fecal microbiota transplantation (FMT) has emerged as a potential therapeutic approach to restore gut microbial diversity.

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α1-Antitrypsin (AAT), an acute-phase reactant not unsimilar to C-reactive protein (CRP), is a serine protease inhibitor that harbors tissue-protective and immunomodulatory attributes. Its concentrations appropriately increase during conditions of extensive tissue injury, and it induces immune tolerance, in part, by inhibiting the enzymatic activity of the inflammatory serine protease, proteinase 3 (PR3). Typically administered to patients with genetic AAT deficiency, AAT treatment was recently shown to improve outcomes in patients with steroid-refractory graft-versus-host disease (GVHD).

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Article Synopsis
  • * A study involving 1439 acute leukemia patients showed that 6% had a prior history of IA before receiving alloSCT, resulting in higher non-relapse mortality (17.3% for those with IA compared to 11.2% for those without), and poorer outcomes in terms of relapse-free and overall survival rates.
  • * Despite the challenges linked to pre-SCT IA, over two-thirds of patients with this condition were alive one
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Pneumocystis pneumonia (PCP) is a life-threatening complication after allogeneic hematopoietic cell transplantation (allo-HCT). However, allo-HCT procedures have evolved toward older patients, unrelated donors, and reduced-intensity conditioning, possibly modifying the risks. Polymerase chain reaction (PCR), widely used nowadays, is more sensitive than microscopy diagnostic methods.

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  • The study focuses on improving the detection of graft-versus-host disease (GVHD) in patients who have undergone hematopoietic stem cell transplantation (HCT) using circulating cell-free DNA (cfDNA) as a biomarker for tissue turnover and chronic GVHD in various organs.
  • Researchers developed a set of tissue-specific DNA methylation markers to analyze cfDNA from 101 patients, finding that those with active cGVHD had higher levels of cfDNA and corresponding methylation signatures compared to those without visible symptoms.
  • The study concluded that cfDNA markers could effectively identify cGVHD, revealing underlying tissue changes, and achieved a high specificity (86%) and precision (89%) in identifying
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  • * In a phase 2b study involving 65 patients averaging 75 years old, aspacytarabine was administered, resulting in a complete remission rate of 36.9% without the serious side effects typically associated with high doses of cytarabine.
  • * The median overall survival for patients was 9 months, with all responders showing recovery in blood cell counts by day 26, indicating aspacytarabine may be an effective and less toxic treatment option for AML in vulnerable populations.
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Background: Acute myeloid leukemia (AML) is an aggressive hematological malignancy, associated with unfavorable patient outcome, primarily due to disease relapse. Mesenchymal stem cells (MSCs) residing in the bone marrow (BM) niche are the source of mesenchyma-derived subpopulations, including adipocytes, and osteocytes, that are critical for normal hematopoiesis. This study aimed to characterize BM-derived adipocyte/osteocyte fractions and their crosstalk with AML cells as a potential mechanism underlying leukemogenesis.

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Background: Chronic lymphocytic leukemia (CLL) is a heterogeneous B-cell malignancy, affecting mainly older adults. Despite the recent introduction of multiple targeted agents, CLL remains an incurable disease. Cellular therapy is a promptly evolving area that has developed over the last decades from such standard of care as hematopoietic cell transplantation (HCT) to the novel treatment modalities employing genetically engineered immune cells.

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Objectives: Autologous hematopoietic stem cell transplantation (AHSCT) has been shown to improve long-term survival for early diffuse progressive SSc compared with CYC. CYC, however, does not provide a long-term benefit in SSc. The combination of MMF and rituximab is a potent alternative regimen.

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