Publications by authors named "BLANK F"

Toll-like receptors (TLRs) are central to initiate immune responses against invading pathogens. To ensure host defense while avoiding aberrant activation leading to pathogenic inflammation and autoimmune diseases, TLRs are tightly controlled by multilevel regulatory mechanisms. Through a loss-of-function genetic screen in a reporter cell line engineered to undergo cell death upon TLR7-induced IRF5 activation, we identified here CCDC134 as an essential factor for TLR responses.

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Article Synopsis
  • - The lungs serve as a major interface for interactions with inhaled substances, and they are equipped with various immune cells (like epithelial cells, macrophages, and dendritic cells) to protect against these potential threats.
  • - The characteristics of these immune cell populations vary based on their location in the lungs, making them ideal candidates for targeted therapies that can influence immune responses when inhaled.
  • - Utilizing nanosized drug carriers for inhalation shows promise for enhancing or regulating immune responses, but careful study is needed to understand their effects and ensure safety for both prevention and treatment of lung-related issues.
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Metastasis, the leading cause of cancer death, is closely linked to lactate metabolism. Our study aimed to investigate the role of lactate dehydrogenase B (LDHB), which mainly catalyzes the conversion of lactate to pyruvate, in the metastatic potential of lung cancer. We found that LDHB silencing reduced the invasion and migration ability of lung cancer cells in vitro.

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Purpose: To evaluate the oncological and genitourinary outcomes of various forms of prostate ablation for localized prostate cancer.

Methods: A prospectively managed database included men with localized prostate cancer who underwent prostate ablation during January 2018-August 2023. Patients received either whole or partial-gland ablation using 1 of 3 energy modalities: cryotherapy, High Intensity Focused Ultrasound (HIFU), or Irreversible electroporation (IRE).

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Introduction: Positive childbirth expectations are crucial for fostering a positive labor experience and enhancing the health and well-being of both the woman and her newborn. However, the impact of obesity on childbirth expectations remains underexplored. We aim to assess childbirth expectations in women living with obesity to enhance perinatal care tailored to their specific needs.

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  • * Enhancing the effectiveness of these models can be achieved through the Adverse Outcome Pathways (AOP) framework, which connects key events relevant to In Vitro-in Vivo Extrapolation (IVIVE).
  • * Challenges remain due to the lack of harmonization in endpoint analysis and readouts between animal models and specific assays, highlighting the need for improved alignment in future research focused on inflammatory effects.
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We developed a system for optogenetic release of single molecules in cells. We confined soluble and transmembrane proteins to the Golgi apparatus via a photocleavable protein and released them by short pulses of light. Our method allows for a light dose-dependent delivery of functional proteins to the cytosol and plasma membrane in amounts compatible with single-molecule imaging, greatly simplifying access to single-molecule microscopy of any protein in live cells.

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Introduction: Focal therapy (FT) is a form of ablative treatment offered to men with localized, organ-confined prostate cancer (CaP). Pelvic multiparametric magnetic resonance imaging (mpMRI) and mpMRI/transrectal ultrasound fusion (MRI-US) guidance enable the precise delivery of FT with limited ablation of adjacent benign tissue or vital genitourinary structures. This article presents our findings on using MRI-US to perform FT as a primary treatment for men with intermediate-risk CaP.

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Context: Focal therapy (FT) has been gaining popularity as a treatment option for localized intermediate-risk prostate cancer (PCa) due to the associated lower morbidity compared to whole-gland treatment. However, there is an increased risk of local cancer recurrence requiring subsequent treatment in a small proportion of patients.

Objective: To conduct a systematic review and meta-analysis to better describe and analyze patient postoperative, oncologic, and functional outcomes for those who underwent salvage radical prostatectomy (sRP) to manage their primary FT failure.

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Endometriosis is a common gynaecological condition characterised by the growth of endometrial tissue outside the uterus and is associated with pain and infertility. Currently, the gold standard for endometriosis diagnosis is laparoscopic excision and histological identification of endometrial epithelial and stromal cells. There is, however, currently no known association between the histological appearance, size, morphology, or subtype of endometriosis and disease prognosis.

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Prostate cancer (PCa) is the most common noncutaneous malignancy in men and is the second leading cause of cancer mortality in men in the United States. Current practice requires histopathological confirmation of cancer achieved through biopsy for diagnosis. The transrectal approach for prostate biopsy has been the standard for several decades.

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The ongoing SARS-CoV-2 pandemic continues to lead to high morbidity and mortality. During pregnancy, severe maternal and neonatal outcomes and placental pathological changes have been described. We evaluate SARS-CoV-2 infection at the maternal-fetal interface using precision-cut slices (PCSs) of human placenta.

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Background: Although T cell abundance in solid tumours is associated with better outcomes, it also correlates with a stroma-mediated source of immune suppression driven by TGFβ1 and poor overall survival. Whether this also is observed in non-small cell lung cancer (NSCLC) is unknown.

Methods: We utilized molecular analysis of The Cancer Genome Atlas (TCGA) NSLCC cohort to correlate immune activation (IA) gene expression and extracellular matrix/stromal (ECM/stromal) gene expression with patient survival.

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Preventing surgical flaps necrosis remains challenging. Laser Doppler imaging and ultrasound can monitor blood flow in flap regions, but they do not directly measure the cellular response to ischemia. The study aimed to investigate the efficacy of synergistic electroporation-mediated gene transfer of interleukin 10 (IL-10) with either hepatocyte growth factor (HGF) or vascular endothelial growth factor (VEGF) on the survival of a modified McFarlane flap, and to evaluate the effect of the treatment on cell metabolism, using label-free fluorescence lifetime imaging.

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Lung injury in mice induces mobilization of discrete subsets of epithelial progenitor cells to promote new airway and alveolar structures. However, whether similar cell types exist in human lung remains unresolved. Using flow cytometry, we identified a distinct cluster of cells expressing the epithelial cell adhesion molecule (EpCAM), a cell surface marker expressed on epithelial progenitor cells, enriched in the ecto-5'-nucleotidase CD73 in unaffected postnatal human lungs resected from pediatric patients with congenital lung lesions.

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Article Synopsis
  • The study investigates mesenchymal cell subsets in human lungs affected by aging and diseases, using advanced techniques like flow cytometry and confocal imaging to analyze lung tissue from patients with conditions like congenital pulmonary airway malformations and COPD.
  • Findings show that the mesenchymal cell fraction is significantly higher than epithelial cells in young lungs but decreases with age, and is enriched in specific markers like CD90 and PDGFRα, located near epithelial cells.
  • In patients with COPD, the mesenchymal cells are unable to support the formation of microvessels due to fibrinolysis, highlighting the potential impact of targeting the plasmin-plasminogen system to improve vessel assembly despite inducing narrower and less perfusable
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With substantial progress of nanotechnology, there is rising concern about possible adverse health effects related to inhalation of nanomaterials, such as multi-walled carbon nanotubes (MWCNT). In particular, individuals with chronic respiratory disorders, such as chronic obstructive pulmonary disease (COPD), may potentially be more susceptible to adverse health effects related to inhaled MWCNT. Hazard assessment of such inhaled nanomaterials therefore requires timely clarification.

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Background: The purpose of this pilot study was to determine if a definitive clinical trial of thiamine supplementation was warranted in patients with acute heart failure. We hypothesized that thiamine, when added to standard of care, would improve dyspnea (primary outcome) in hospitalized patients with acute heart failure. Peak expiratory flow rate, type B natriuretic peptide, free fatty acids, glucose, hospital length of stay, as well as 30-day rehospitalization and mortality were pre-planned secondary outcome measures.

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Objectives: Stem cells secrete significant amounts of bioactive factors in their secretome that can be immunosuppressive. We studied the effect of the secretome obtained from bone marrow-derived mesenchymal stem cells (BMSC-sec) in combination with cyclosporine A following acute rejection of lung allografts in the rat.

Methods: Lung allotransplants were performed from male Brown Norway donor rats to recipient male Fisher 344 rats.

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  • The study investigates the respiratory risks associated with occupational exposure to multi-walled carbon nanotubes (MWCNTs), particularly for individuals with chronic obstructive pulmonary disease (COPD).
  • An in vitro air-liquid interface (ALICE) system was used to expose bronchial epithelial cells from COPD patients and healthy controls to aerosolized MWCNTs, evaluating effects on cell integrity and inflammatory responses after 24 hours.
  • Findings revealed that acute exposure to MWCNTs showed no significant impact on epithelial integrity or cell function, as there were no increases in cell death or inflammatory markers, suggesting MWCNTs may not pose immediate respiratory risks under these conditions.
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While Zika virus (ZIKV) circulated for decades (African lineage strains) without report of outbreaks and severe complications, its emergence in French Polynesia and subsequently in the Americas (Asian lineage strains) was associated with description of severe neurological defects in newborns/neonates and adults. With the aim to identify virus lineage-dependent factors, we compared cell susceptibility, virus replication, cell death and innate immune responses following infection with two African and three contemporary Asian lineage strains of ZIKV. To this end, we used green monkey Vero and Aedes albopictus C6/36 cells and human monocyte-derived dendritic cells (DCs).

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Article Synopsis
  • - Understanding how nanomaterials interact with biological systems is crucial for their biomedical application, but the processes of their uptake, degradation, and clearance in the body are not yet fully understood.
  • - Some nanomaterials like liposomes and various nanoparticles are FDA-approved for clinical trials; however, there's still significant uncertainty about their long-term effects and behavior in the body.
  • - The review highlights the need to explore the distribution, clearance mechanisms, and biological barriers nanomaterials face to maximize their efficacy and informs future research directions.
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Respiratory IgE-sensitization to innocuous antigens increases the risk for developing diseases such as allergic asthma. Dendritic cells (DC) residing in the airways orchestrate the immune response following antigen exposure and their ability to sample and present antigens to naïve T cells in airway draining lymph nodes contributes to allergen-specific IgE-sensitization. In order to characterize inhaled antigen capture and presentation by DC subtypes in vivo, we used an adjuvant-free respiratory sensitization model using two genetically distinct rat strains, one of which is naturally resistant and the other naturally susceptible to allergic sensitization.

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Background: In vitro systems of primary cystic fibrosis (CF) airway epithelial cells are an important tool to study molecular and functional features of the native respiratory epithelium. However, undifferentiated CF airway cell cultures grown under submerged conditions do not appropriately represent the physiological situation. A more advanced CF cell culture system based on airway epithelial cells grown at the air-liquid interface (ALI) recapitulates most of the in vivo-like properties but requires the use of invasive sampling methods.

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  • Little is known about how monocytes differ in the lung's mucosal environment and the influence of bronchial epithelial cells (BECs) on their function.
  • In experiments, monocytes exposed to BEC-conditioned media showed increased surface markers (CD141, CD123, DC-SIGN) and released important cytokines (IL-1β, IL-6, IL-10), influencing T cell responses.
  • A specific population of monocytes (triple positive for CD141, CD123, DC-SIGN) was found in the bronchoalveolar fluid of patients with inflammatory conditions, particularly increased in sarcoidosis, indicating a role in inflammation.
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