Alice Williart

ORCID: 0000-0003-2581-0379
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About
Contact & Profiles
Research Areas
  • Nuclear Structure and Function
  • RNA Research and Splicing
  • Immunotherapy and Immune Responses
  • Cellular Mechanics and Interactions
  • Genomics and Chromatin Dynamics
  • Epigenetics and DNA Methylation
  • RNA modifications and cancer
  • CRISPR and Genetic Engineering
  • Advanced biosensing and bioanalysis techniques
  • Erythrocyte Function and Pathophysiology
  • Retinoids in leukemia and cellular processes
  • T-cell and B-cell Immunology
  • NF-κB Signaling Pathways
  • PARP inhibition in cancer therapy
  • Cell Adhesion Molecules Research
  • Cell death mechanisms and regulation
  • thermodynamics and calorimetric analyses
  • Congenital limb and hand anomalies
  • Microtubule and mitosis dynamics
  • Breast Implant and Reconstruction
  • interferon and immune responses
  • Immune Response and Inflammation
  • Automotive and Human Injury Biomechanics
  • RNA regulation and disease
  • Cancer Genomics and Diagnostics

Institut Pierre-Gilles de Gennes pour la Microfluidique
2021-2025

Institut Curie
2021-2025

Université Paris Sciences et Lettres
2021-2025

Centre National de la Recherche Scientifique
2021-2025

Laboratoire de Biologie Moléculaire et Cellulaire des Eucaryotes
2021

Sanofi (France)
2019

Immune cells experience large cell shape changes during environmental patrolling because of the physical constraints that they encounter while migrating through tissues. These can adapt to such deformation events using dedicated shape-sensing pathways. However, how sensing affects immune function is mostly unknown. Here, we identify a mechanism increases expression chemokine receptor CCR7 and guides dendritic migration from peripheral tissues lymph nodes at steady state. This relies on lipid...

10.1038/s41590-024-01856-3 article EN cc-by Nature Immunology 2024-06-04

Mechanics has been a central focus of physical biology in the past decade. In comparison, how cells manage their size is less understood. Here, we show that parameter to both physics and physiology cell, its volume, depends on mechano-osmotic coupling. We found change volume depending rate at which they shape, when spontaneously spread or are externally deformed. Cells undergo slow deformation constant while fast leads loss. propose mechanosensitive pump leak model explain this phenomenon....

10.7554/elife.72381 article EN cc-by eLife 2022-04-13

Abstract Imbalance in the finely orchestrated system of chromatin-modifying enzymes is a hallmark many pathologies such as cancers, since causing affection epigenome and transcriptional reprogramming. Here, we demonstrate that loss-of-function mutation (LOF) major histone lysine methyltransferase SETDB1 possessing oncogenic activity lung cancer cells leads to broad changes overall architecture mechanical properties nucleus through genome-wide redistribution heterochromatin, which perturbs...

10.1093/nar/gkac234 article EN cc-by-nc Nucleic Acids Research 2022-04-21

Errors during cell division lead to aneuploidy, which is associated with genomic instability and transformation. In response cells activate the tumour suppressor p53 elicit a surveillance mechanism that halts proliferation promotes senescence. The molecular sensors trigger this checkpoint are unclear. Here, using tunable system of chromosome mis-segregation, we show mitotic errors nuclear deformation, softening, lamin heterochromatin alterations, leading rapid p53/p21 activation upon exit in...

10.1038/s41556-024-01565-x article EN cc-by-nc-nd Nature Cell Biology 2025-01-01

The human immunodeficiency virus (HIV) enters the nucleus to establish infection, but role of nuclear envelope proteins in this process is incompletely understood. Inner transmembrane SUN1 and SUN2 connect lamins cytoskeleton participate DNA damage response (DDR). Increased levels or potently restrict HIV infection through an unresolved mechanism. Here, we find that antiviral activities are distinct. HIV-1 HIV-2 preferentially inhibited by SUN2, respectively. We identify inducers stimulate...

10.1016/j.celrep.2021.109763 article EN cc-by-nc-nd Cell Reports 2021-09-01

Abstract Motile cells such as immune and cancer experience large deformation events that result from the physical constraints they encounter while migrating within tissues or circulating between organs. It has become increasingly clear these can survive adapt to changes in cell shape using dedicated sensing pathways. However, how impacts their function fate remains largely unknown. Here we identify a mechanism couples motility expression of CCR7, chemokine receptor guides lymph nodes. We...

10.1101/2022.08.09.503223 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2022-08-11

Abstract Imbalance in the finely orchestrated system of chromatin-modifying enzymes is a hallmark many pathologies such as cancers, since causing affection epigenome and transcriptional reprogramming. Here, we demonstrate that loss-of-function mutation (LOF) major histone lysine methyltransferase SETDB1 possessing oncogenic activity lung cancer cells leads to broad changes overall architecture mechanical properties nucleus through genome-wide redistribution heterochromatin, which perturbs...

10.1101/2021.09.06.459062 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2021-09-06

Metastatic breast cancer results in substantial morbidity and mortality for women afflicted with this disease. Approximately 80% of cancers express the estrogen receptor. The cell survival proliferation is driven by activation SAR439859 an effective endocrine therapy selectively effectively degrading A phase 1/2 study alone and/or combination palbociclib postmenopausal receptor positive advanced was initiated last year Sanofi.CRISPR/Cas9 a recent revolutionary technology efficient directed...

10.1158/1538-7445.sabcs18-1272 article EN Experimental and Molecular Therapeutics 2019-07-01

Abstract Metastatic breast cancer results in substantial morbidity and mortality for women afflicted with this disease. Approximately 80% of cancers express the estrogen receptor. The cell survival proliferation is driven by activation SAR439859 an effective endocrine therapy selectively effectively degrading A phase 1/2 study alone and/or combination palbociclib postmenopausal receptor positive advanced was initiated last year Sanofi. CRISPR/Cas9 a recent revolutionary technology efficient...

10.1158/1538-7445.am2019-1272 article EN Cancer Research 2019-07-01

Dendritic cells (DCs) patrol tissues and migrate to lymph nodes for presentation of collected antigens T cells. This process is needed initiate immune responses against infectious agents as well maintain tolerance tissue self-antigens at steady state. In both cases, DC migration requires the upregulation chemokine receptor CCR7. It well-known that upon infection, CCR7 expression induced by microbial inflammatory components released within environment. However, environmental signals trigger...

10.2139/ssrn.4245137 article EN SSRN Electronic Journal 2022-01-01
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