2,129 results match your criteria: "Simmons Comprehensive Cancer Center[Affiliation]"

Purpose: The management of renal cell carcinoma (RCC) relies on clinical and histopathological features for treatment decisions. Recently, radiomics, which involves the extraction and analysis of quantitative imaging features, has shown promise in improving RCC management. This review evaluates the current application and limitations of radiomics for predicting treatment and oncological outcomes in RCC.

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  • A study analyzed paired baseline and end-of-treatment circulating tumor DNA (ctDNA) samples from the MONALEESA trials to identify genetic changes in patients with HR+/HER2- advanced breast cancer treated with ribociclib plus endocrine therapy (ET) or a placebo.
  • The analysis included 523 samples, revealing 21 genes with significant alterations at end-of-treatment, particularly highlighting increased mutations in RB1 and SPEN in the ribociclib group, while ESR1 mutations were noted in both treatment arms.
  • The findings suggest acquired genetic alterations related to treatment response and resistance, providing insights for future research on resistance mechanisms and potential systemic therapies following CDK4/6 inhibitors.
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Introduction: The multidisciplinary American Radium Society Thoracic Committee was assigned to create appropriate use criteria on cardiac toxicity prevention and management for patients undergoing radiotherapy.

Methods: A systematic review of the current literature was conducted. Case variants of patients with thoracic malignancies undergoing radiation were created based on presence or absence of cardiovascular risk factors and treatment-related risks assessed by dose exposure to the heart and cardiac substructures.

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At JADPRO Live 2023, presenters emphasized the importance of increasing colorectal cancer screening in high-risk groups, reviewed guidelines in the adjuvant and metastatic setting, and outlined clinical and molecular profiles to consider when discussing and determining treatment options with patients.

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The transcription factor achaete-scute complexhomolog 1 (ASCL1) is a lineage oncogene that is central in growth and survival of the majority of small cell lung cancers and neuroendocrine (NE) non-small cell lung cancers (NSCLC) that express it. Targeting ASCL1, or its downstream pathways, remains a challenge. Small cell lung cancers and NSCLC-NE that express ASCL1 exhibit relatively low ERK1/2 activity, in dramatic contrast to NSCLCs in which the ERK pathway plays a major role in pathogenesis.

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Identification of bacterial protein-protein interactions and predicting the structures of these complexes could aid in the understanding of pathogenicity mechanisms and developing treatments for infectious diseases. Here we developed RoseTTAFold2-Lite, a rapid deep learning model that leverages residue-residue coevolution and protein structure prediction to systematically identify and structurally characterize protein-protein interactions at the proteome-wide scale. Using this pipeline, we searched through 78 million pairs of proteins across 19 human bacterial pathogens and identified 1,923 confidently predicted complexes involving essential genes and 256 involving virulence factors.

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The innate immune system is the first responder to infectious agents, cellular debris, and cancerous growths. This system plays critical roles in the antitumor immune responses by boosting and priming T cell-mediated cytotoxicity but is understudied due to the complexity and redundancy of its various downstream signaling cascades. We utilized a mathematical tool to holistically quantify innate immune signaling cascades and immunophenotype over 8,000 tumors from The Cancer Genome Atlas (TCGA).

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  • Latino populations in the U.S. are growing rapidly and face significant health inequities, especially in neighborhoods known as Latino enclaves where healthcare access is often limited.
  • The study analyzed around 20,000 neighborhoods across five states to understand the social and physical environment of these enclaves and their accessibility to primary healthcare.
  • Findings indicate that about 30% of neighborhoods are Latino enclaves, which tend to have higher poverty and other disadvantages that correlate with lower access to healthcare, particularly in areas with high poverty rates.
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VHL synthetic lethality screens uncover CBF-β as a negative regulator of STING.

bioRxiv

September 2024

Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, Department of Medicine, University of Cambridge, Cambridge, CB2 0AW, UK.

Clear cell renal cell carcinoma (ccRCC) represents the most common form of kidney cancer and is typified by biallelic inactivation of the von Hippel-Lindau () tumour suppressor gene. Here, we undertake genome-wide CRISPR/Cas9 screening to reveal synthetic lethal interactors of , and uncover that loss of Core Binding Factor β (CBF-β) causes cell death in -null ccRCC cell lines and impairs tumour establishment and growth . This synthetic relationship is independent of the elevated activity of hypoxia inducible factors (HIFs) in -null cells, but does involve the RUNX transcription factors that are known binding partners of CBF-β.

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Mechanism of TBK1 activation in cancer cells.

Cell Insight

October 2024

Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA.

TANK-binding kinase 1 (TBK1) is a serine/threonine kinase with well-established roles as a central player in innate immune signaling. Dysregulation of TBK1 activity has been implicated in a variety of pathophysiologic conditions, including cancer. Generally, TBK1 acts as an oncogene and increased TBK1 activity, indicated by increased phosphorylation at the Ser172 residue, can be observed in multiple human cancers.

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The Karner blue butterfly, () , is an endangered North American climate change-vulnerable species that has undergone substantial historical habitat loss and population decline. To better understand the species' genetic status and support Karner blue conservation, we sampled 116 individuals from 22 localities across the species' geographical range in Wisconsin (WI), Michigan (MI), Indiana (IN), and New York (NY). Using genomic analysis, we found that these samples were divided into three major geographic groups, NY, WI, and MI-IN, with populations in WI and MI-IN each further divided into three subgroups.

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Nucleic Acid Therapy for the Skin.

J Invest Dermatol

September 2024

Department of Dermatology, The University of Texas Southwestern Medical Center, Dallas, Texas, USA; Harold C. Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, Texas, USA.

Advances in sequencing technologies have facilitated the identification of the genes and mechanisms for many inherited skin diseases. Although targeted nucleic acid therapeutics for diseases in other organs have begun to be deployed in patients, the goal of precise therapeutics for skin diseases has not yet been realized. First, we review the current and emerging nucleic acid-based gene-editing and delivery modalities.

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Most patients with prostate adenocarcinoma develop resistance to therapies targeting the androgen receptor (AR). Consequently, a portion of these patients develop AR-independent neuroendocrine (NE) prostate cancer (NEPC), a rapidly progressing cancer with limited therapies and poor survival outcomes. Current research to understand the progression to NEPC suggests a model of lineage plasticity whereby AR-dependent luminal-like tumors progress toward an AR-independent NEPC state.

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Importance: Numerous studies show that early palliative care improves quality of life and other key outcomes in patients with advanced cancer and their caregivers, although most lack access to this evidence-based model of care.

Objective: To evaluate whether delivering early palliative care via secure video vs in-person visits has an equivalent effect on quality of life in patients with advanced non-small cell lung cancer (NSCLC).

Design, Setting, And Participants: Randomized, multisite, comparative effectiveness trial from June 14, 2018, to May 4, 2023, at 22 US cancer centers among 1250 patients within 12 weeks of diagnosis of advanced NSCLC and 548 caregivers.

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Metastatic renal cell carcinoma (RCC) can present with oligometastatic disease and/or develop oligoprogression following systemic therapy. Cytoreductive and focal metastasis-directed therapy options include resection, stereotactic ablative radiation and thermal ablation. Aggressive focal therapy may allow delay in initiation of or modification to systemic therapy and improve clinical outcomes.

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Navigating electronic health record accuracy by examination of sex incongruent conditions.

J Am Med Inform Assoc

December 2024

Quantitative Biomedical Research Center, Peter O'Donnell Jr. School of Public Health, University of Texas Southwestern Medical Center, Dallas, TX 75390, United States.

Objective: The increasing reliance on electronic health records (EHRs) for research and clinical care necessitates robust methods for assessing data quality and identifying inconsistencies. To address this need, we develop and apply the incongruence rate (IR) using sex-specific medical conditions. We also characterized participants with incongruent records to better understand the scope and nature of data discrepancies.

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  • Luminal Androgen Receptor (LAR) triple-negative breast cancers (TNBC) show high PIK3CA mutation rates and express androgen receptors, leading researchers to explore the effects of combining CDK4/6 and PI3K signaling inhibitors.
  • The combination of palbociclib and capivasertib was found to significantly inhibit the growth of LAR TNBC cells, outperforming the palbociclib and alpelisib combination, while the AR antagonist enzalutamide showed no effectiveness.
  • The study indicates that the adaptive response to CDK4/6 inhibition involves PDGFRβ signaling, and suggests testing combined CDK4/6 and AKT inhibitors, as well as PD
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  • * A multidisciplinary team of experts from various medical fields contributes to these guidelines, ensuring comprehensive care for patients with cancer-associated VTE.
  • * The guidelines provide specific evaluation processes and recommended treatment options tailored to the different types of cancer-associated VTE.
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  • * These guidelines are designed to support physicians in making informed decisions about CRC screening for patients who do not have specific genetic syndromes.
  • * Recent updates include insights on both primary and secondary CRC prevention, particularly addressing when to start screening for average-risk individuals and those with a relevant personal history of cancer.
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Background: Belzutifan is a first-in-class hypoxia-inducible factor subunit 2α (HIF-2α) inhibitor approved at a dose of 120 mg once daily for certain adults with VHL disease and adults with advanced renal cell carcinoma (RCC) following therapy with a programmed cell death protein 1 (PD-1) [or programmed death ligand 1 (PD-L1)] inhibitor and a vascular endothelial growth factor tyrosine kinase inhibitor. However, whether the belzutifan dose could be optimized is unclear.

Patients And Methods: The phase II LITESPARK-013 study (NCT04489771) enrolled patients with advanced clear cell RCC whose disease progressed after one to three prior systemic therapies, including an anti-PD-(L)1 regimen.

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Mapping cellular interactions from spatially resolved transcriptomics data.

Nat Methods

October 2024

Quantitative Biomedical Research Center, Peter O'Donnell Jr. School of Public Health, University of Texas Southwestern Medical Center, Dallas, TX, USA.

Cell-cell communication (CCC) is essential to how life forms and functions. However, accurate, high-throughput mapping of how expression of all genes in one cell affects expression of all genes in another cell is made possible only recently through the introduction of spatially resolved transcriptomics (SRT) technologies, especially those that achieve single-cell resolution. Nevertheless, substantial challenges remain to analyze such highly complex data properly.

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Introduction: Disparities in incidence and outcome of rectal cancer are multifactorial in etiology but may be due, in part, to differences in gut microbiome composition. We used serial robust statistical approaches to assess baseline gut microbiome composition in a diverse cohort of patients with rectal cancer receiving definitive treatment.

Methods: Microbiome composition was compared by age at diagnosis (< 50 vs ≥ 50 years), race and ethnicity (White Hispanic vs non-Hispanic), and response to therapy.

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Multiple myeloma (MM) is the cancer of plasma cells within the bone marrow and remains incurable. Tumor-associated macrophages (TAMs) within the tumor microenvironment often display a pro-tumor phenotype and correlate with tumor proliferation, survival, and therapy resistance. IL-10 is a key immunosuppressive cytokine that leads to recruitment and development of TAMs.

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  • The study highlights the negative health impacts of prolonged sitting and inactivity in modern life, and explores psychological and behavioral economic factors linked to these behaviors among 4072 adults in Israel.
  • Participants completed a survey on lifestyle and economic preferences, and results showed that individuals with higher levels of grit and a tendency to take risks were less sedentary and more active.
  • The findings suggest that targeting grit and risk-taking in interventions could help reduce sedentary behavior and promote a more active lifestyle.
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