Publications by authors named "L Courtois"

Article Synopsis
  • Head and neck squamous cell carcinoma (HNSCC) shows significant genetic diversity within tumors, complicating targeted treatment approaches and making traditional imaging ineffective for detecting minimal residual disease (MRD).
  • A study of 41 patients with resectable HNSCC found that circulating tumor DNA (ctDNA) can serve as a biomarker for assessing tumor heterogeneity and MRD, with notable detection rates at surgery and recurrence.
  • The presence of ctDNA shortly after surgery correlated with disease recurrence, providing an early warning about potential relapse, thus supporting its role in post-operative monitoring and precision medicine strategies.
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Dedifferentiated liposarcoma (DDLPS) is the most frequent high-grade soft tissue sarcoma subtype. It is characterized by a component of undifferentiated tumor cells coexisting with a component of well-differentiated adipocytic tumor cells. Both dedifferentiated (DD) and well-differentiated (WD) components exhibit MDM2 amplification, however their cellular origin remains elusive.

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Ubiquitination plays a crucial role in cellular homeostasis by regulating the degradation, localization, and activity of proteins, ensuring proper cell function and balance. Among E3 ubiquitin ligases, WW domain-containing protein 1 (WWP1) is implicated in cell proliferation, survival, and apoptosis. Notably WWP1 is frequently amplified in breast cancer and associated with poor prognosis.

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Article Synopsis
  • Esotropia caused by sixth cranial nerve palsy can greatly affect visual acuity, and if it doesn't improve within 6-10 months, surgery may be needed, with the modified Nishida procedure being a promising option for treatment without splitting muscles.
  • A 59-year-old woman with chronic complete sixth nerve palsy underwent the modified Nishida procedure combined with botulinum toxin A (BTA) injection after multiple unsuccessful surgeries, resulting in significant improvement in her condition.
  • Post-surgery, the patient experienced better eye alignment, less double vision, and a broader field of vision, showcasing the effectiveness of the modified Nishida procedure for this type of eye disorder.
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Article Synopsis
  • γδ T cells play a crucial role in immune responses by quickly producing interferon-γ (IFN-γ), especially during the perinatal period when there's an increase in these cells that express CD8αβ heterodimers.
  • Their development relies on low T cell receptor signaling, supported by interleukin (IL)-4 and IL-7, which helps regulate their growth.
  • Aberrations in IL-7R-STAT5B signaling can lead to an excessive number of these cells in certain diseases, and they are also linked to pediatric cases of acute lymphoblastic leukemia.
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