Publications by authors named "Stephane Dalle"

Cancer treatments have been dramatically modified by the introduction and the development of immunological checkpoint inhibitors (ICI). These treatments have many side effects, including acute kidney injury (AKI). Their combination with other treatments makes the diagnosis complex.

View Article and Find Full Text PDF
Article Synopsis
  • - The study investigates primary cutaneous marginal zone lymphoma (PCMZL) by analyzing recurrent cases to determine whether it's a reactive process or a true lymphoma, utilizing data from the French Study Group of Cutaneous Lymphoma (GFELC).
  • - Methods included assessing histology, B-cell clonality, and immunophenotype of lesions, revealing that most initial cases were localized, with differences in recurrence times based on location, and certain clonal patterns were more prominent in local recurrences.
  • - The findings suggest that assessing immunoglobulin phenotype, particularly IgM and IgD, may be critical for diagnosing PCMZL, as IgM-positive cases tend to lead to more aggressive transformation and poorer prognosis, indicating different biological
View Article and Find Full Text PDF

Background: The Checkmate 067 randomized controlled trial, published in 2015, demonstrated improved progression-free survival and numerically, although not statistically, superior overall survival for ipilimumab + nivolumab. The objective of this study was to compare the efficacy and safety of nivolumab to ipilimumab + nivolumab as first-line treatment for metastatic melanoma in a real-world setting.

Methods: Patients were prospectively included in the French Melbase cohort from 2013 to 2022.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the effects of continuing immune checkpoint inhibition (ICI) treatment in patients with metastatic melanoma who experience disease progression, using data from 120 patients.
  • It finds that patients who continued ICI treatment had a median overall survival (OS) of 4.2 months, significantly longer than the 1.3 months for those who stopped treatment after progression.
  • Despite the survival benefits, the study noted increased hospitalizations and treatments at the end of life in patients continuing ICI, highlighting the need for balanced palliative care.
View Article and Find Full Text PDF
Article Synopsis
  • A phase 3 trial found that 12 months of adjuvant pembrolizumab significantly improved recurrence-free survival (RFS) and distant metastasis-free survival (DMFS) in patients with high-risk stage III melanoma compared to placebo, with longer follow-up data available.
  • With a median follow-up of 6.9 years, the pembrolizumab group showed a 50% RFS at 7 years versus 36% for the placebo group, and a 54% DMFS compared to 42% in the placebo group.
  • The results indicated consistent positive outcomes across various melanoma subtypes, confirming the long-term benefits of pembrolizumab in improving survival metrics in these patients.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigated immune checkpoint inhibitor-related encephalitis (ICI-encephalitis) to better understand its characteristics, identify diagnostic biomarkers, and explore factors predicting patient outcomes.* -
  • It analyzed data from 67 patients (median age 69 years) diagnosed between 2015-2023, finding that 64% had focal syndromes (like limbic encephalitis) while 36% had meningoencephalitis, with the former showing worse treatment responses and higher mortality rates.* -
  • The presence of PNS-related antibodies and abnormal MRI findings were more common in focal encephalitis cases, highlighting important distinctions that could guide future diagnostics and therapeutic strategies.*
View Article and Find Full Text PDF

Background: In the European Organisation for Research and Treatment of Cancer (EORTC) 1325-MG/KEYNOTE-054 study, adjuvant pembrolizumab improved recurrence-free survival and distant-metastasis-free survival in patients with resected stage III melanoma. Earlier results showed no effect of pembrolizumab on health-related quality of life (HRQOL). Little is known about HRQOL after completion of treatment with pembrolizumab, an important research area concerning patients who are likely to become long-term survivors.

View Article and Find Full Text PDF

Background: Mycosis fungoides (MF) has usually an indolent course. However, some patients develop a more aggressive disease and few prognostic parameters have been identified. Isolated cases of pustular MF (pMF) suggest an unfavourable prognosis.

View Article and Find Full Text PDF

Preserving the function and survival of pancreatic beta-cells, in order to achieve long-term glycemic control and prevent complications, is an essential feature for an innovative drug to have clinical value in the treatment of diabetes. Innovative research is developing therapeutic strategies to prevent pathogenic mechanisms and protect beta-cells from the deleterious effects of inflammation and/or chronic hyperglycemia over time. A better understanding of receptors and signaling pathways, and of how they interact with each other in beta-cells, remains crucial and is a prerequisite for any strategy to develop therapeutic tools aimed at modulating beta-cell function and/or mass.

View Article and Find Full Text PDF

Purpose: The management of immune-related adverse events (irAEs) requires multidisciplinary boards to handle complex cases. This study aimed to examine the evolving practices of the IMMUCARE board and to evaluate its impact on clinical practices.

Materials And Methods: The IMMUCARE board gathers oncologists and organ specialists from the Cancerology Institute of the Lyon University Hospital since 2018.

View Article and Find Full Text PDF
Article Synopsis
  • Sézary syndrome is a rare and deadly skin cancer, and this study looked into the survival rates and factors affecting outcomes, particularly focusing on the treatment mogamulizumab.
  • *The research analyzed data from 339 patients diagnosed between 2000 and 2020 across Europe, highlighting that age over 80 and large-cell transformation worsened survival rates.
  • *Results indicated that patients treated with mogamulizumab had significantly lower mortality rates, suggesting it is an effective treatment option for Sézary syndrome.
View Article and Find Full Text PDF

The need for reliable biomarkers to predict clinical benefit from anti-PD1 treatment in metastatic melanoma (MM) patients remains unmet. Several parameters have been considered in the tumor environment or the blood, but none has yet achieved sufficient accuracy for routine clinical practice. Whole blood samples from MM patients receiving second-line anti-PD1 treatment (NCT02626065), collected longitudinally, were analyzed by flow cytometry to assess the immune cell subsets absolute numbers, the expression of immune checkpoints or ligands on T cells and the functionality of innate immune cells and T cells.

View Article and Find Full Text PDF

The prevalence of diabetes is increasing worldwide. Massive death of pancreatic beta-cells causes type 1 diabetes. Progressive loss of beta-cell function and mass characterizes type 2 diabetes.

View Article and Find Full Text PDF

Background: Cutaneous adnexal carcinomas are a heterogeneous group of rare neoplasms. Surgical excision is the first-line treatment in localized stage. The use and effectiveness of radiotherapy have not been thoroughly evaluated in these neoplasms.

View Article and Find Full Text PDF

The outcome of cancer and autoimmunity is often dictated by the effector functions of CD4+ conventional T cells (Tconv). Although activation of the NF-κB signaling pathway has long been implicated in Tconv biology, the cell-autonomous roles of the separate NF-κB transcription-factor subunits are unknown. Here, we dissected the contributions of the canonical NF-κB subunits RelA and c-Rel to Tconv function.

View Article and Find Full Text PDF

Cell plasticity sustains intra-tumor heterogeneity and treatment resistance in melanoma. Deciphering the transcriptional mechanisms governing reversible phenotypic transitions between proliferative/differentiated and invasive/stem-like states is required. Expression of the ZEB1 transcription factor is frequently activated in melanoma, where it fosters adaptive resistance to targeted therapies.

View Article and Find Full Text PDF

Background: Pain is common in patients with cancer. The World Health Organisation recommends paracetamol or non-steroidal anti-inflammatory drugs (NSAIDs) for mild pain and combined with other agents for moderate/severe pain. This study estimated associations of NSAIDs with recurrence-free survival (RFS), distant metastasis-free survival (DMFS) and the incidence of immune-related adverse events (irAEs) in high-risk patients with resected melanoma in the EORTC 1325/KEYNOTE-054 phase III clinical trial.

View Article and Find Full Text PDF

The intrinsic biomechanical properties of cancer cells remain poorly understood. To decipher whether cell stiffness modulation could increase melanoma cells' invasive capacity, we performed both in vitro and in vivo experiments exploring cell stiffness by atomic force microscopy (AFM). We correlated stiffness properties with cell morphology adaptation and the molecular mechanisms underlying epithelial-to-mesenchymal (EMT)-like phenotype switching.

View Article and Find Full Text PDF

BACKGROUND: A phase 2/3 trial — A Study of Relatlimab Plus Nivolumab Versus Nivolumab Alone in Participants With Advanced Melanoma (RELATIVITY-047) — evaluated nivolumab + relatlimab as a fixed-dose combination and found a significant progression-free survival (PFS) benefit over nivolumab monotherapy in previously untreated unresectable or metastatic melanoma. We now report updated PFS and safety data and the first results for overall survival (OS) and objective response rate (ORR). METHODS: Patients were randomly assigned 1:1 to receive nivolumab 480 mg and relatlimab 160 mg fixed-dose combination or nivolumab 480 mg alone, given intravenously every 4 weeks.

View Article and Find Full Text PDF

Melanoma is the deadliest form of skin cancer due to its propensity to metastasize. It arises from melanocytes, which are attached to keratinocytes within the basal epidermis. Here, we hypothesize that, in addition to melanocyte-intrinsic modifications, dysregulation of keratinocyte functions could initiate early-stage melanoma cell invasion.

View Article and Find Full Text PDF