Publications by authors named "L Belmont"

Background: Small-cell lung cancer (SCLC) is a highly aggressive type of lung cancer. Lurbinectedin is recommended as second-/third-line treatment for advanced, previously treated SCLC.

Materials And Methods: LURBICLIN is a nationwide, non-interventional, retrospective chart review study, based on the cohort of consecutive patients enrolled in the named patient use for lurbinectedin in France.

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Article Synopsis
  • Researchers discovered that dengue virus (DENV) can use IgG antibodies to enter cells through a process called antibody-dependent enhancement (ADE), which requires a receptor known as FcgR.
  • They conducted CRISPR knockout screens to identify additional host factors that facilitate ADE and found new proteins, TBC1D24 and SV2B, that play important roles in this process.
  • This study highlights the complex biology of ADE and offers insights into potential factors that could be targeted for better understanding and treatment of dengue infections.
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Background: The KBP studies are real-life nationwide, prospective, multicenter cohort studies of patients diagnosed with primary lung cancer that have been conducted in French non-academic public hospitals each decade since 2000.

Methods: Patients were analyzed in three prospective cohorts using the same methodology. In this study, we describe and compare the characteristics and outcomes of patients with small cell lung cancer (SCLC), with a focus on treatments in the 2020 cohort.

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Dengue virus (DENV) can hijack non-neutralizing IgG antibodies to facilitate its uptake into target cells expressing Fc gamma receptors (FcgR) - a process known as antibody-dependent enhancement (ADE) of infection. Beyond a requirement for FcgR, host dependency factors for this non-canonical infection route remain unknown. To identify cellular factors exclusively required for ADE, here, we performed CRISPR knockout screens in an system permissive to infection only in the presence of IgG antibodies.

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Antibodies targeting an envelope dimer epitope (EDE) cross-neutralize Zika virus (ZIKV) and dengue virus (DENV) and have thus inspired an epitope-focused vaccine design. There are two EDE antibody subclasses (EDE1, EDE2) distinguished by their dependence on viral envelope protein -linked glycosylation at position N153 (DENV) or N154 (ZIKV) for binding. Here, we determined how envelope glycosylation site mutations affect by EDE and other broadly neutralizing antibodies.

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