48 results match your criteria: "Benedict College[Affiliation]"

Background: Oncolytic adenoviruses (OAds) are the most clinically tested viral vectors for solid tumors. However, most clinically tested "Armed" OAds show limited antitumor effects in patients with various solid tumors even with increased dosages and multiple injections. We developed a binary oncolytic/helper-dependent adenovirus system (CAdVEC), in which tumors are coinfected with an OAd and a non-replicating helper-dependent Ad (HDAd).

View Article and Find Full Text PDF

Systemic administration of oncolytic viruses (OVs) is a promising approach for targeting metastatic solid tumors, but their anti-tumor activity is limited by pre-existing neutralizing antibodies against common human viruses. Therefore, investigators have developed OVs derived from non-human host viruses. Successful implementation of this strategy requires that the viral vector selectively infects and replicates within human cancer cells.

View Article and Find Full Text PDF

Purpose: To understand the distribution of healthy and unhealthy food stores and restaurants around historically Black colleges and universities (HBCUs) in South Carolina.

Design: DatabaseUSA and ArcGIS Pro were used to identify, classify, and map food stores and restaurants near each HBCU.

Setting: The study area included a 3-mile buffer radius around the eight South Carolina HBCUs.

View Article and Find Full Text PDF

The National Institute of Health R25 Research Education Program was evaluated in the second year of implementation. Twelve mentors and 20 underrepresented minority students (URMs) scholars from partnerships and collaborations among five colleges and universities were added to the program to provide a more diverse research experience. Findings reveal that 100% of research mentors agree that the approachableness and accessibility of the program coordinator were beneficial in achieving mentorship goals and objectives.

View Article and Find Full Text PDF

Mesenchymal stromal cells protect combined oncolytic and helper-dependent adenoviruses from humoral immunity.

Mol Ther Methods Clin Dev

September 2024

Center for Cell Gene Therapy, Baylor College of Medicine, Texas Children's Hospital, Houston Methodist Hospital, Houston, TX 77030, USA.

Systemic delivery of oncolytic and immunomodulatory adenoviruses may be required for optimal effects on human malignancies. Mesenchymal stromal cells (MSCs) can serve as delivery systems for cancer therapeutics due to their ability to transport and shield these agents while homing to tumors. We now use MSCs to deliver a clinically validated binary oncolytic and helper-dependent adenovirus combination (CAdVEC) to tumor cells.

View Article and Find Full Text PDF

The environmental impacts of global warming driven by methane (CH) emissions have catalyzed significant research initiatives in developing novel technologies that enable proactive and rapid detection of CH. Several data-driven machine learning (ML) models were tested to determine how well they identified fugitive CH and its related intensity in the affected areas. Various meteorological characteristics, including wind speed, temperature, pressure, relative humidity, water vapor, and heat flux, were included in the simulation.

View Article and Find Full Text PDF

Nanotopographical features can be beneficial in augmenting cell functions and increasing osteogenic potential. However, the relationships between surface topographies and biological responses are difficult to establish due to the difficulty in controlling the surface topographical features at a low-nanometre scale. Herein, we report the fabrication of well-defined controllable titanium dioxide (TiO) nanotube arrays with a wide range of pore sizes, 30-175 nm in diameter, and use of the electrochemical anodization method to assess the effect of surface nanotopographies on cell morphology and adhesion.

View Article and Find Full Text PDF

Fibrinogen in Hamster Cauda Sperm.

Int J Biochem Physiol

October 2023

Department of Chemistry, Physics & Materials Science, Fayetteville State University, USA.

Epididymis plays a vital role in promoting sperm maturation and maintaining sperm viability. It has been shown the presence of nonviable sperm in cauda epididymis. We previously identified a secretory protein (260/280KDa oligomers) of hamster cauda epididymal principal cells that binds to nonviable sperm.

View Article and Find Full Text PDF

The luminal environment of the mammalian epididymidis performs a dual function; sperm maturation and maintaining sperm viability. We previously identified a secretory protein (260/280KDa oligomers) of hamster cauda epididymal principal cells that binds to nonviable sperm. The 260/280KDa oligomers are composed of 64kDa FGL2 (fibrinogen-like protein-2) and 33kDa FGL1) (fibrinogen-like protein-1).

View Article and Find Full Text PDF
Article Synopsis
  • Sanitary sewage overflows (SSOs) can pose a risk to drinking water and are linked to boil water advisories (BWAs) which warn residents about potential contamination.
  • A study in Columbia, South Carolina, from 2013-2017 found that SSOs were associated with a 13% increase in gastrointestinal (GI) illness diagnoses shortly after an overflow event, particularly in predominantly Black neighborhoods.
  • While BWAs did not generally show a clear link to GI illness, those issued in the winter months (January-March) were associated with higher illness rates compared to advisories issued later in the year.
View Article and Find Full Text PDF

Mobility support for disadvantaged and disabled travelers during pandemic or similar situations.

Expert Syst Appl

February 2023

Computer Science, Physics, and Engineering Department, Benedict College, 1600 Harden Street, Columbia, SC 29204, USA.

The COVID-19 lockdown has reduced public transportation service to the disadvantaged and disabled people who urgently need adequate mobility to obtain essential suppliers. This paper aims to improve the life quality of people with disabilities and elderly people by addressing social exclusion, accessibility, and mobility issues. Demand responsive transport services are frequently offered in the context of door-to-door transportation of the elderly and persons with disabilities.

View Article and Find Full Text PDF

The mechanisms connecting environmental conditions to plasticity in biological aging trajectories are fundamental to understanding individual variation in functional traits and life history. Recent findings suggest that telomere biology is especially dynamic during early life stages and has long-term consequences for subsequent reproduction and survival. However, our current understanding is mostly derived from studies investigating ecological and anthropogenic factors separately, leaving the effects of complex environmental interactions unresolved.

View Article and Find Full Text PDF

Evidence suggests social support may buffer brain pathology. However, neither its association with hippocampal volume, a marker of Alzheimer's disease risk, nor the role of race in this association has been fully investigated. Multiple regression analyses examined relations of total social support to magnetic resonance imaging-assessed gray matter (GM) hippocampal volumes in the total sample ( = 165; mean age = 68.

View Article and Find Full Text PDF

Vehicle emission analysis currently faces a trade-off between easy-to-use, low-accuracy macroscopic models, and computationally intensive, high-accuracy microscopic models. In this study, we develop a surrogate model that leverages microscopic traffic and emission simulations to predict link-level emission rates. The input variables are obtained by aggregating 1 Hz simulated vehicle trajectories into hourly traffic condition factors (e.

View Article and Find Full Text PDF

Microorganisms play a vital role in shaping the soil environment and enhancing plant growth by interacting with plant root systems. Because of the vast diversity of cell types involved, combined with dynamic and spatial heterogeneity, identifying the causal contribution of a defined factor, such as a microbial exopolysaccharide (EPS), remains elusive. Synthetic approaches that enable orthogonal control of microbial pathways are a promising means to dissect such complexity.

View Article and Find Full Text PDF

Although the epididymal environment promotes the maturation and survival of spermatozoa, not all spermatozoa remain viable during passage through the epididymis. Does the epididymis has a protective mechanism(s) to segregate the viable sperm from defective spermatozoa? Previously, we identified 260/280 kDa oligomers (termed eFGL-Epididymal Fibrinogen-Like oligomer) are composed of two disulfide-linked subunits: a 64 kDa polypeptide identified as fibrinogen-like protein-2 (FGL2) and a 33 kDa polypeptide identified as fibrinogen-like protein-1 (FGL1). Our morphological studies demonstrated that the eFGL, secreted from the principal cells of the cauda epididymis, is polymerized into a death cocoon-like complex (DCF), masking defective luminal spermatozoa but, not the viable sperm population.

View Article and Find Full Text PDF

Our previous studies demonstrated that the natural compound emodin blocks the tumor-promoting feedforward interactions between cancer cells and macrophages, and thus ameliorates the immunosuppressive state of the tumor microenvironment. Since tumor-associated macrophages (TAMs) also affect epithelial mesenchymal-transition (EMT) and cancer stem cell (CSC) formation, here we aimed to test if emodin as a neoadjuvant therapy halts breast cancer metastasis by attenuating TAM-induced EMT and CSC formation of breast cancer cells. Bioinformatical analysis was performed to examine the correlation between macrophage abundance and EMT/CSC markers in human breast tumors.

View Article and Find Full Text PDF

Early microcystin-LR exposure-linked inflammasome activation in mice causes development of fatty liver disease and insulin resistance.

Environ Toxicol Pharmacol

November 2020

Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA; NIEHS Center for Oceans and Human Health on Climate Change Interactions, Department of Environmental Health Sciences, University of South Carolina, USA. Electronic address:

Article Synopsis
  • Infants and children are at risk for early exposure to microcystin, a toxin from harmful algal blooms, which may lead to health issues later in life.
  • A study tested how early exposure to microcystin combined with a high-fat diet impacts the development of nonalcoholic fatty liver disease (NAFLD) in adulthood, revealing inflammation symptoms and increased inflammatory markers in exposed groups.
  • Mice lacking the NLRP3 inflammasome (NLRP3 KO) showed less inflammation and metabolic issues, suggesting that childhood exposure to microcystin could negatively affect liver health through NLRP3 activation.
View Article and Find Full Text PDF

: Obesity is a major epidemic in our population and has emerged as a primary health concern. Consumption of a high fat, high sugar (HFHS) diet can specifically lead to gut dysbiosis, increased inflammation, and neuroinflammation. Interestingly, sex differences in the response to a HFHS diet are emerging.

View Article and Find Full Text PDF

MicroRNA 155 (miR-155) plays important roles in the regulation of the development and functions of a variety of immune cells. We previously revealed a vital role of miR-155 in regulating the function of dendritic cells (DCs) in breast cancer. miR-155 deficiency in DCs impaired their maturation, migration, cytokine production, and ability to activate T cells.

View Article and Find Full Text PDF

Krüppel-like factor 4 (KLF4) was closely associated with epithelial-mesenchymal transition and stemness in colorectal cancer stem cells (CSCs)-enriched spheroid cells. Nonetheless, the underlying molecular mechanism is unclear. This study showed that KLF4 overexpression was accompanied with stemness and mesenchymal features in Lgr5 CD44 EpCAM colorectal CSCs.

View Article and Find Full Text PDF

Toxicity of polycyclic aromatic hydrocarbons involves NOX2 activation.

Toxicol Rep

November 2019

Department of Biology, Chemistry, and Environmental Health Science, Benedict College, 1600 Harden Street, Columbia, SC, 29204, USA.

Polycyclic Aromatic Hydrocarbons (PAHs) are environmental pollutants. The present study compares the toxic effects of BaP alone and a mixture of PAHs on human breast cancer cells. We hypothesize that PAH mixture is more toxic than BaP alone, and an increased NOX2 activation is related to PAH-induced oxidative stress.

View Article and Find Full Text PDF

Exogenous PP2A inhibitor exacerbates the progression of nonalcoholic fatty liver disease via NOX2-dependent activation of miR21.

Am J Physiol Gastrointest Liver Physiol

October 2019

Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina.

Nonalcoholic fatty liver disease (NAFLD) is an emerging global pandemic. Though significant progress has been made in unraveling the pathophysiology of the disease, the role of protein phosphatase 2A (PP2A) and its subsequent inhibition by environmental and genetic factors in NAFLD pathophysiology remains unclear. The present report tests the hypothesis that an exogenous PP2A inhibitor leads to hepatic inflammation and fibrogenesis via an NADPH oxidase 2 (NOX2)-dependent pathway in NAFLD.

View Article and Find Full Text PDF