Publications by authors named "Jaccard A"

POEMS syndrome (Polyneuropathy, Organomegaly, Endocrinopathy, Monoclonal Protein, Skin changes) is a syndrome that involves a monoclonal B-cell proliferation, most often plasmacytic, and a variable number of manifestations listed or not in the acronym. These manifestations include sclerotic bone lesions, plasmacytic Castleman disease, papillary edema, peripheral edema, ascites, thrombocytosis and/or polycythemia, venous and/or arterial thrombosis, and renal, pulmonary, and cardiac impairments . Diagnosis is often delayed due to the rarity of this entity and its clinical polymorphism, which can mimic other neurological disorders.

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  • * Quick diagnosis and treatment of kidney problems in these patients are crucial, with therapies focusing on hydration, correcting contributing factors, and administering effective anti-myeloma drugs while considering the patient's kidney function and overall health.
  • * Advanced treatments like plasma exchange may improve kidney recovery in severe cases, and newer combinations of medications show promise, with the possibility of kidney transplantation for some patients in the future.
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Kidney disease is a common complication of monoclonal immunoglobulin (MIg)-secreting B-cell disorders and predominantly occurs in patients who do not meet the criteria for an overt hematological disease. To distinguish this situation from monoclonal gammopathy of undetermined significance, which lacks organ damage, the term monoclonal gammopathy of renal significance (MGRS) was introduced to depict the association of a small, otherwise indolent B-cell clone, with renal disease induced by the secreted MIg. The spectrum of renal disorders in MGRS is wide, encompassing both tubular and glomerular disorders, classified according to the composition of deposits and their ultrastructural pattern of organization.

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Extranodal NK/T-cell lymphoma (ENKTCL) is an Epstein-Barr virus (EBV)-related neoplasm preferentially involving the upper aerodigestive tract. Here we show that NK-cell-specific Trp53 disruption in mice leads to the development of NK-cell lymphomas after long latency, which involve not only the hematopoietic system but also the salivary glands. Before tumor onset, Trp53 knockout causes extensive gene expression changes, resulting in immature NK-cell expansion, exclusively in the salivary glands.

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  • This study evaluated the effectiveness of cardiac magnetic resonance (CMR) imaging compared to other diagnostic markers in predicting mortality in patients with AL cardiac amyloidosis (CA).
  • Conducted on 176 patients with a median age of 68 years, the study found that high levels of NT-proBNP and troponin, along with low heart function measurements, were linked to increased mortality risk.
  • Extracellular volume (ECV) from CMR emerged as a strong independent predictor of all-cause mortality and heart failure hospitalizations, suggesting it can enhance prognostic assessments beyond the established Mayo Clinic staging.
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  • A new community of heads of haematology departments has been formed to provide mutual support in response to challenges within the French hospital system.
  • An inaugural seminar held in January 2023 laid the groundwork for this initiative, fostering connections and collaboration among participants.
  • The community expanded in January 2024, involving a wider group of department heads, enhancing teamwork and resource-sharing to improve hospital management and operations.
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Activated T cells undergo a metabolic shift to aerobic glycolysis to support the energetic demands of proliferation, differentiation, and cytolytic function. Transmembrane glucose flux is facilitated by glucose transporters (GLUT) that play a vital role in T cell metabolic reprogramming and anti-tumour function. GLUT isoforms are regulated at the level of expression and subcellular distribution.

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Extranodal NK/T-cell lymphoma (ENKTCL) is an Epstein-Barr virus (EBV)-related neoplasm with male dominance and a poor prognosis. A better understanding of the genetic alterations and their functional roles in ENKTCL could help improve patient stratification and treatments. In this study, we performed a comprehensive genetic analysis of 178 ENKTCL cases to delineate the landscape of mutations, copy number alterations (CNA), and structural variations, identifying 34 driver genes including six previously unappreciated ones, namely, HLA-B, HLA-C, ROBO1, CD58, POT1, and MAP2K1.

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Objectives: To report healthcare resource utilization (HCRU) and safety outcomes in systemic light chain (AL) amyloidosis from the EMN23 study.

Materials And Methods: The retrospective, observational, multinational EMN23 study included 4,480 patients initiating first-line treatment for AL amyloidosis in 2004-2018 and assessed, among other objectives, HCRU and safety outcomes. HCRU included hospitalizations, examinations, and dialysis; safety included serious adverse events (SAEs) and adverse events of special interest (AESIs).

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Protective immunity against pathogens or cancer is mediated by the activation and clonal expansion of antigen-specific naive T cells into effector T cells. To sustain their rapid proliferation and effector functions, naive T cells switch their quiescent metabolism to an anabolic metabolism through increased levels of aerobic glycolysis, but also through mitochondrial metabolism and oxidative phosphorylation, generating energy and signalling molecules. However, how that metabolic rewiring drives and defines the differentiation of T cells remains unclear.

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Despite the fact that sp. are ubiquitous fungi, their viromes have been little studied. By analysing a collection of fungi, two new partitiviruses named Cladosporium cladosporioides partitivirus 1 (CcPV1) and Cladosporium cladosporioides partitivirus 2 (CcPV2) co-infecting a strain of were identified.

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  • The French hospital system is facing a crisis due to staff shortages, prompting department heads to seek collaborative solutions for maintaining patient care.
  • A two-day seminar was held for fourteen hematology department heads, focusing on sharing experiences and fostering a community aimed at improving their hospitals.
  • The participants expressed interest in expanding collaboration through regular seminars for department heads across various specialties, aligning with public service strategies to strengthen hospital departments and inspire broader change in the health system.
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  • Natural killer/T-cell lymphomas (NKTCL) are rare and serious types of blood cancer, and patients who don't respond to initial treatments have a very low chance of recovery.
  • A study looked at 135 patients who had a special type of stem cell transplant between 2010 and 2020, with most patients being around 43 years old and having had multiple treatments before the transplant.
  • After about 5 years, around half of the patients were still alive and doing well, showing that this transplant can help some patients with NKTCL live longer.
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  • Extranodal NK/T-cell lymphoma, nasal type is a rare and aggressive cancer with a traditionally poor outlook, but a study explored a new treatment combining MGAD chemotherapy with targeted radiotherapy.
  • In this study of 35 newly diagnosed patients, 91% achieved complete remission, with promising long-term survival rates of 71% at 2 years and 53% at 5 years.
  • While some patients faced manageable side effects and a third relapsed within about 14.5 months, the short treatment approach showed effectiveness and tolerability for this challenging condition.
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  • * 321 patients underwent cytogenetic testing, revealing that D-VCd led to better hematologic responses and organ response rates across most cytogenetic subgroups compared to VCd.
  • * The findings suggest that D-VCd should be considered the standard treatment for newly diagnosed AL amyloidosis patients, regardless of their cytogenetic profile.
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  • - AA amyloidosis results from excess deposits of Serum Amyloid A (SAA) protein, often complicating chronic inflammatory diseases such as rheumatoid arthritis and tuberculosis, with the most commonly affected organ being the kidneys, leading to symptoms like edema and proteinuria.
  • - Diagnosis involves detecting amyloid deposits via biopsy with Congo Red staining and confirming with immunohistochemical analysis. Peripheral inflammatory biomarkers like C Reactive protein can also aid in diagnosis.
  • - Treatment focuses on addressing the underlying chronic condition to lower SAA levels, with options like dialysis or kidney transplant available for renal failure; however, there are currently no specific treatments for the amyloid deposits themselves.
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Systemic light-chain (AL) amyloidosis is a rare and debilitating disease. Advances have been made in new treatments in recent years, yet real-world data on the management of the disease are scarce. EMN23 is a retrospective, observational study of patients who initiated first-line treatment in 2004-2018 in Europe, presenting the demographics, clinical characteristics, treatment patterns, and outcomes, from 4480 patients.

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Background: Patients with amyloid light chain amyloidosis and severe cardiac dysfunction have a poor prognosis. Treatment options that induce rapid and deep hematologic and organ responses, irrespective of cardiac involvement, are needed.

Objectives: The aim of this study was to evaluate the impact of baseline cardiac stage on efficacy and safety outcomes in the phase 3 ANDROMEDA trial.

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In the era of personalized treatment in multiple myeloma, high-risk patients must be accurately identified. The International Myeloma Working Group recommends using the Revised International Staging System (R-ISS) to pick out high-risk patients. The main purpose of our work was to explore the heterogeneity of outcome among R-ISS stage II patients assessing the impact of International Staging System (ISS) stage, chromosomal abnormalities and lactate dehydrogenase level in this subgroup.

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