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Articles 1 - 30 of 45
Full-Text Articles in Cell and Developmental Biology
Doxorubicin-Induced Nuclear Localization Of Scube3 Essential For Cell Survival In Tnbc, Ayooluwa Ilesanmi
Doxorubicin-Induced Nuclear Localization Of Scube3 Essential For Cell Survival In Tnbc, Ayooluwa Ilesanmi
Undergraduate Research Conference
Mediation of Doxorubicin-Induced SCUBE3 Nuclear Localization by A Functional NLS Involved in Pro-Tumorigenic Actions in Breast Cancer.
Signal peptide-CUB-EGF-like domain-containing protein 3 (SCUBE3) is a glycosylated secreted and cell membrane-associated protein considered a signature gene in cancers and known to mediate its actions in the cytoplasm where its localizes prior to its secretion. However, our study observed that SCUBE3 protein localized to the nucleus following doxorubicin (DOX) treatment. In this study, we investigated SCUBE3 nuclear localization in triple-negative breast cancer, intending to dissect the mechanism of its nuclear trafficking induced by DOX treatment. Bioinformatic analysis of the SCUBE3 protein sequence …
Upregulation Of The Predominant Cystic Fibrosis Causing Mutation Df508-Cftr By Triazole Compounds In Epithelial Cells, Maggie Taylor
Upregulation Of The Predominant Cystic Fibrosis Causing Mutation Df508-Cftr By Triazole Compounds In Epithelial Cells, Maggie Taylor
Undergraduate Research Conference
Cystic fibrosis is a common genetic disease that is caused by a mutation in the plasma membrane protein CFTR, which stands for Cystic Fibrosis Transmembrane-conductance Regulator. When this membrane protein is mutated, it impairs its chloride ion channel function, blocking the movement of chloride ions that travel in and out of the cell. Previous studies have demonstrated that the most prevalent CFTR mutation, ∆F508-CFTR, can be partially reversed using small molecules (Heda and Marino, BBRC, 271:659-664, 2000). In this study, I have investigated the effects of several triazole compounds known to bind and transport chloride ions in cultured cells, on …
Investigating Three Novel Porphyrins For The Possible Treatment For Lung Cancer Using Red And White Light, Emmy Hipps
Investigating Three Novel Porphyrins For The Possible Treatment For Lung Cancer Using Red And White Light, Emmy Hipps
Scholars Day Conference
Photodynamic therapy (PDT) is a treatment method for various illnesses including cancer that uses a special drug, called a photosensitizer (PS). When a patient is injected with a PS, over time the PS is absorbed by the cancerous tumor. Light is then applied to area for treatment. The light then causes the drug to be activated, and singlet oxygen is produced that kills the cells. The PS in partnership with light causes cancer cells to undergo apoptosis. This research focuses on testing three novel water-soluble porphyrins, ZnTPPEA, H2TPP – TRIS, and H2TPPADIPA, as potential photosensitizing agents. All three novel photosensitizing …
Effects On Primary Endothelial Cells When Exposed To Polyethylene Terephthalate Nanoplastic, David Guzman
Effects On Primary Endothelial Cells When Exposed To Polyethylene Terephthalate Nanoplastic, David Guzman
Seaver College Research And Scholarly Achievement Symposium
As the use of plastics becomes more predominant in our environment, the interactions between nanoplastics and the human body have increased dramatically. One of the most common and prevalent plastics is polyethylene, and more specifically polyethylene terephthalate (PET). Tissue exposure to nanoplastics occurs through surface contact upon ingestion or inhalation where nanoplastics can pass readily through the epithelial layer. Directly beneath gut and lung epithelia is the endothelial layer of capillaries. Very little is known about the interactions between polyethylene and human cells, with no information currently available on its effects with the endothelial layer. Our previous research showed that …
Functional Analysis Provides Insight Into Missing Heritability, Scott L. Baughan, Michael A. Tainsky, Fatima Darwiche
Functional Analysis Provides Insight Into Missing Heritability, Scott L. Baughan, Michael A. Tainsky, Fatima Darwiche
Medical Student Research Symposium
Accurate ascertainment of genetic risk can be potentially lifesaving for patients who inherit cancer promoting mutations. However, even with the most extensive panel testing clinically available, a large number of patients will test negative despite family history of cancer or test positive for a variant of unknown significance (VUS). For these patients, clinical management is complicated; patients want to know their risk, and may fear disease they are not at great risk for (benign VUS) or they may not be given access to potentially lifesaving early screening procedures (pathogenic VUS). ATM has proven a challenge to clinicians due to its …
Investigating Respiratory Simplification Caused By Prenatal Rage Upregulation, Paul Reynolds
Investigating Respiratory Simplification Caused By Prenatal Rage Upregulation, Paul Reynolds
Annual Research Symposium
No abstract provided.
Potential Role For Rage In The Development Of Secondhand Smoke-Induced Chronic Sinusitis, Paul Reynolds
Potential Role For Rage In The Development Of Secondhand Smoke-Induced Chronic Sinusitis, Paul Reynolds
Annual Research Symposium
No abstract provided.
Rage Inhibition Reduces Timp And Decreases Cell Invasion In Cigarette Smoke Extract (Cse) Treated Oral Squamous Carcinoma Cells, Paul Reynolds
Rage Inhibition Reduces Timp And Decreases Cell Invasion In Cigarette Smoke Extract (Cse) Treated Oral Squamous Carcinoma Cells, Paul Reynolds
Annual Research Symposium
No abstract provided.
Rage Availability Lessens The Degree Of Dysfunctional Mitochondrial Bioenergetics Following Chronic Secondhand Smoke Exposure, Paul Reynolds
Rage Availability Lessens The Degree Of Dysfunctional Mitochondrial Bioenergetics Following Chronic Secondhand Smoke Exposure, Paul Reynolds
Annual Research Symposium
No abstract provided.
Gestational Dependent Responses To Second Hand Smoke (Shs) In Mouse Pregnancies, Paul Reynolds
Gestational Dependent Responses To Second Hand Smoke (Shs) In Mouse Pregnancies, Paul Reynolds
Annual Research Symposium
No abstract provided.
The Genetics Of Skin Cancer: What Genes Drive The Development Of Basal Cell Carcinoma, Squamous Cell Carcinoma, And Melanoma?, Cassandra Poole, Abagail Pack, Elizabeth Whitehead, Virginia Marshall
The Genetics Of Skin Cancer: What Genes Drive The Development Of Basal Cell Carcinoma, Squamous Cell Carcinoma, And Melanoma?, Cassandra Poole, Abagail Pack, Elizabeth Whitehead, Virginia Marshall
Spring Showcase for Research and Creative Inquiry
Skin cancer is one of the most common forms of cancer worldwide. The American Academy of Dermatology estimates that 9500 people in the United States are diagnosed with skin cancer every day, and that 1 in 5 Americans will be diagnosed with skin cancer by age 70. With such a high prevalence of disease, understanding how skin cancer develops and how it can be treated is extremely important. This project aims to analyze the genes involved in the development of the three most common forms of skin cancer: basal cell carcinoma, squamous cell carcinoma, and melanoma.
The Effect Of Ethanolic Echinacea Purpurea Root Extracts On The Production Of Pro-Inflammatory Mediators In Raw 264.7 Murine Macrophages, Trey T. Nguyen
The Effect Of Ethanolic Echinacea Purpurea Root Extracts On The Production Of Pro-Inflammatory Mediators In Raw 264.7 Murine Macrophages, Trey T. Nguyen
Student Scholar Showcase
Echinacea purpurea, commonly known as the purple coneflower, is utilized in medicinal preparations due to potential immunostimulatory and anti-inflammatory properties. Present bioactive metabolites such as alkamides, polysaccharides, and caffeic acid derivatives provide pharmacological elements essential to mitigating symptoms produced by upper respiratory illnesses. The chemical composition of E. purpurea holds medicinal value, but there remains controversy surrounding the efficacy of its use in medicine. The purpose of this study is to examine the effects of an 75% ethanolic E. purpurea root extract on LPS (lipopolysaccharide)-stimulated RAW 264.7 murine macrophages. Treatment groups included ethanolic E. purpurea extract (3µL, 15µL, 30µL), …
Influence Of Myelin-Associated Glycoprotein On Axon Subtype Specific Sheath Targeting, Nazmus Sakib Khan
Influence Of Myelin-Associated Glycoprotein On Axon Subtype Specific Sheath Targeting, Nazmus Sakib Khan
Ramaley Celebration
During the development of the Central Nervous System, oligodendrocytes wrap axons with myelin, which is necessary for rapid, efficient nerve impulse propagation. For reasons unknown, oligodendrocytes direct myelin to certain subtypes of axons, leaving others incompletely myelinated, or even totally unmyelinated. Previous studies demonstrated mice harboring Mag mutations showed improper sheath targeting of myelin to axons indicating that MAG is a possible facilitator of axon-glia communication.
In the present study, we tested the hypothesis that loss of mag decreases the proportion of myelin directed towards specific axon subtypes. To test this, we perturbed Mag function in zebrafish embryos using knockdown …
Histology Of Psoriasis, Allan Roy Sison
Histology Of Psoriasis, Allan Roy Sison
Campus Research Day
I will be presenting a research study on the comparison of the histology of normal skin versus the histology of individuals with Psoriasis.
Two And Three-Dimensional Radiographic Imaging Of Contrast Agents In Heterogeneous Live Cell Media To Understand Contrast-Induced Toxicity, Fahaneda Hassan, Aldona Gjoni, Subhendra Sarkar
Two And Three-Dimensional Radiographic Imaging Of Contrast Agents In Heterogeneous Live Cell Media To Understand Contrast-Induced Toxicity, Fahaneda Hassan, Aldona Gjoni, Subhendra Sarkar
Publications and Research
Radiographic imaging was done using low and high energy radiography equipment. The test hypothesis that macromolecular aggregation changes sample noise in imaging samples for optical imaging methods. Inorganic complexes scatter radiation at the molecular level and may increase the sample noise locally. At high and low photon energies in various x-ray machines, sample and background noise were gathered and compared with those from mammography systems from mammography researchers. The samples with high macromolecular aggregates were prepared using various animal cell compositions and imaged under different conditions that produced different macromolecular dynamics within the samples and thus different image-based sample noise. …
Computational Chemistry - Ulk 101, Michaela Montpas
Computational Chemistry - Ulk 101, Michaela Montpas
Scholar Week 2016 - present
Autophagy is a process that generates the necessary building components for cells by cytoplasmic breakdown of unnecessary materials (Martin, Celano, Solitro, Gunaydin, Scott, et. al., 2018). This is a survival technique for cells in times of stress, especially during periods of nutrient starvation. Cancer cells, unfortunately, benefit from this process due to their ability to flourish in nutrient-starved environments, becoming resistant to therapy. The primary protein in mammals responsible for this process is a serine/threonine kinase called ULK 1 (unc-51 like autophagy initiating kinase 1). As such, inhibitors of ULK 1 can be used in cancer therapies in order to …
From Soap Bubbles To Cell Membranes, Peter Beltramo
From Soap Bubbles To Cell Membranes, Peter Beltramo
Science and Engineering Saturday Seminars
Have you ever blown a soap bubble and wondered - what causes the bubble to be so stable and produces those colorful reflections of light? The answer lies in a class of molecules known as surfactants, and they have remarkable similarities with the molecules that comprise the cell membrane of all living organisms. In this workshop, we will use the analogy of a soap bubble to describe cellular membrane properties such as chemistry, structure, membrane transport, and ion channel formation. The goals of this workshop are to 1) link initially intractable concepts in biology like intracellular transport to the intuitive …
The Function Of Ecdysone And Inhibiting Programmed Cell Death In Death Class Iii Neurons Of Drosophila Melanogaster, Nikolas Richard Likourentzos
The Function Of Ecdysone And Inhibiting Programmed Cell Death In Death Class Iii Neurons Of Drosophila Melanogaster, Nikolas Richard Likourentzos
EURēCA: Exhibition of Undergraduate Research and Creative Achievement
The inhibition of programmed cell death is a factor believed to be responsible for the survival of cancer cells. Using Drosophila as models, factors contributing to the process of programmed cell death can be studied. Neurons die throughout Drosophila melanogaster development to allow the addition of new neurons. The groups of neurons programmed to die are Death Class I neurons, Death Class II neurons, and Death Class III neurons. Ecdysone is a hormone responsible for the timing of programmed cell death (PCD) in the Death Class neurons. Elevated levels of ecdysone are associated with the initiation of PCD of Death …
Hexavalent Chromium: Elucidating Its Carcinogenic Mechanism, And Testing Potential Preventative Treatments, Ryan Himes, Timothy Mayotte
Hexavalent Chromium: Elucidating Its Carcinogenic Mechanism, And Testing Potential Preventative Treatments, Ryan Himes, Timothy Mayotte
Scholar Week 2016 - present
Cr(VI) (hexavalent chromium) has recently been found in the drinking water of over 250 million Americans. It is a powerful oxidizing agent, and is known to cause cancer, although the specific mechanism has yet to be elucidated. There is no known preventative treatment for Cr(VI) exposure, and the US EPA is currently determining what concentration of Cr(VI) in drinking water can be safely tolerated. This study sought to test the hypothesis that Cr(VI) cytotoxicity can be prevented by various antioxidants. We tested this hypothesis by exposing human embryonic kidney and human intestinal epithelial cells to Cr(VI), with and without the …
Alpha Mangostin As A Chemoprotective Agent Via Activation Of The P53 Pathway For Breast Cancer, Vanessa Van Oost
Alpha Mangostin As A Chemoprotective Agent Via Activation Of The P53 Pathway For Breast Cancer, Vanessa Van Oost
Scholar Week 2016 - present
Breast carcinoma is the most frequently diagnosed cancer among women and causes over 400,000 deaths yearly worldwide. Current treatments such as chemotherapy are not selective for cancerous tissues but are destructive to normal tissues as well. This causes a range of side effects including pain, nausea, hair loss, weakness, and more. Inactivation of p53 is an almost universal mutation within human cancer cells. The ability to activate the p53 pathway which protects cells from tumor formation is lost in 50% of cancers. Due to the prevalence of this mutation, p53 is a uniquely valuable target for applied research. Alpha mangostin …
Exploring The Ipf Lung Through The Lens Of Single Cell Rna Sequencing, Taylor Adams, Jonas Schupp
Exploring The Ipf Lung Through The Lens Of Single Cell Rna Sequencing, Taylor Adams, Jonas Schupp
Yale Day of Data
This poster illustrates the differences between the IPF disease-specific variety of lung macrophages and the two varieties of macrophages known to reside in the normal human lung.
Investigating The Impact Of Oxidative Stress On Tetrahymena Thermophila Sirtuin,Thd 18, Emmanuel Dubuisson
Investigating The Impact Of Oxidative Stress On Tetrahymena Thermophila Sirtuin,Thd 18, Emmanuel Dubuisson
Publications and Research
Sirtuins are a family of enzymes that fulfill various important biological functions. Investigators have looked for the implication of Sirtuin genes in cell signaling mechanisms, in the formation and silencing of heterochromatin, in the regulation of ion channels, and in the modulation of the cellular redox reactions[2]. Different model organisms have been previously used to conduct these studies; among them, there are yeasts, nematodes, and fruit flies. Each one has made some valuable contribution into the vast body of knowledge related to this field.
However, gaps in the understanding of Sirtuins functions still remain to be filled. In this optic, …
Prenylation In The Moss Physcomitrella Patens, Noela Botaka, Susana Perez-Martinez, Liang Bao, Parul Singh, Mark Running
Prenylation In The Moss Physcomitrella Patens, Noela Botaka, Susana Perez-Martinez, Liang Bao, Parul Singh, Mark Running
Posters-at-the-Capitol
Protein prenylation is a post-translational modification that involves the addition of lipid groups to the end of a target protein and is necessary for protein activity. Prenylation has important roles in the cell: targeting and localizing proteins to subcellular compartments and promoting protein-protein interactions. Recently, we have found Protein Prenyltransferase Alpha Subunit-like (PPAL), which shares structural similarities to known prenylation enzymes. However, the biochemical function of PPAL is still unknown. PPAL is present in a single copy in other plants examined to date but is present in two copies in moss. Knockouts in our lab of either PpPAL1 or PpPAL2 …
A Crispr Platform For Rapid And Inducible Genome Editing In Human Non-Small Cell Lung Cancer Cells, Lloyd Bartley
A Crispr Platform For Rapid And Inducible Genome Editing In Human Non-Small Cell Lung Cancer Cells, Lloyd Bartley
Posters-at-the-Capitol
Non-small cell lung cancer (NSCLC) accounts for about 85% of lung cancer, which is the leading cause of cancer death in the world. High mortality rate associated with NSCLC is partially attributed to the limited understanding of NSCLC as well as ineffective therapeutic treatments. The initiation and progression of NSCLC involves genetic changes leading to alterations in the control of tissue development and homeostatic maintenance. Better knowledge about these genetic abnormalities is imperative for developing new chemotherapeutic drugs for NSCLC. Recent research demonstrates that the expression of paraoxonase 2 (PON2), a lactonase/arylesterase with anti-oxidant properties, are markedly enhanced in cancer …
Development Of A Pd-L1 Pet Imaging Biomarker, Caleb Jack Bridgwater
Development Of A Pd-L1 Pet Imaging Biomarker, Caleb Jack Bridgwater
Posters-at-the-Capitol
Immunotherapy strategies are very promising treatments for cancer patients. Specifically, Immune checkpoint inhibitor therapy focusing on the PD-1/PD-L1 pathway shows long-lasting positive results in many cancer patients. Unfortunately, not all the patients can benefit from this highly effective treatment. Hence, there is a great need for predictive biomarkers. Immunohistochemical (IHC) staining has been used as a way of predicting patient response, yet shows many problems. For example, IHC utilizes an invasive biopsy and sample fixing, which creates an incomplete and delayed picture of the patient’s biochemistry and the tumor microenvironment, consequently ignoring metastases.
The purpose of this study is to …
Histone Deacetylation Is The Primary Epigenetic Mechanism For Silencing Of Tumor Suppressor Gene - Tissue Factor Pathway Inhibitor-2 In Hepatocellular Carcinoma Cells, Alisha Deshmukh, Shirish Barve
Histone Deacetylation Is The Primary Epigenetic Mechanism For Silencing Of Tumor Suppressor Gene - Tissue Factor Pathway Inhibitor-2 In Hepatocellular Carcinoma Cells, Alisha Deshmukh, Shirish Barve
Posters-at-the-Capitol
Hepatocellular carcinoma (HCC) is the third leading cause of cancer related mortality worldwide. With a survival rate of less than 5 percent, a therapeutic treatment is desperately needed to manage this disease. Many epigenetic mechanisms that underlay HCC are being identified. A frequently silenced pathway tissue factor pathway inhibitor-2 (TFPI-2) is a critical tumor suppressor gene. In HCC, inactivation of TFPI-2 leads to tumor growth. Recent research indicated Fas L plays a major role in apoptosis as part of HCC. For the purposes of this study, the phytochemical Curcumin was explored to observe its possible effects on the epigenetic mechanisms …
Sirna Knock-Down Of Vav1 In Breast Cancer Cells: Effects On Pi3kinase And Akt, Tajai Sion-Milligan
Sirna Knock-Down Of Vav1 In Breast Cancer Cells: Effects On Pi3kinase And Akt, Tajai Sion-Milligan
Student Scholar Showcase
One in eight women in the United States will be diagnosed with breast cancer. Approximately 25-30% of these breast tumors will overexpress Human Epidermal Growth Factor Receptor 2 (HER2), associated with a worse prognosis and decreased survival rate. Stimulation of HER2 results in activation and production of many signaling molecules, ultimately resulting in increased cell division. Two of the downstream molecules activated are PI3Kinase and, further downstream, the molecule Akt. Typically, overproduction and/or overactivation of PI3Kinase can lead to oncogenesis. A molecule that may have a significant role in PI3Kinase formation is VAV1. VAV1 …
Changes In The Proliferation And Gene Expression Of Huvecs In Response To Treatment With Plant Secondary Metabolites, Caleigh Howard
Changes In The Proliferation And Gene Expression Of Huvecs In Response To Treatment With Plant Secondary Metabolites, Caleigh Howard
Seaver College Research And Scholarly Achievement Symposium
Medicinal plants have historically been a valuable source of new drugs, and Southern California possesses a rich collection of native plants which have been used as medicines by native people groups for thousands of years. Angiogenesis is the biological process of new blood-vessel growth from endothelial cells. It is an essential part of the wound-healing process, and increased angiogenesis has also been implicated in the growth of some types of cancerous tumors. In this study, extracts of the Southern Californian native plants Red shanks (Adenostoma sparsifolium) and the alkaloid extract of Jimson weed (Datura wrightii) were …
Applied Drug Development And Combinatorial Strategies For Antimicrobial Treatment, Steven K. Lai Hing
Applied Drug Development And Combinatorial Strategies For Antimicrobial Treatment, Steven K. Lai Hing
Andrews Research Conference
Streptococcus mutans JH1140 is a strain of bacteria which produces a lantibiotic product, named mutacin 1140. Mutacin 1140 has been shown to be effective at inhibiting Gram-positive bacterial infections caused by Staphylococcus aureus and Streptococcus pneumoniae. Mutacin 1140 is a ribosomally synthesized peptide antibiotic that undergoes extensive posttranslational modifications (PTM). We have found that Mutacin 1140 and an aminoglycoside, Kanamycin, when combined together, act synergistically against Staphylococcus aureus. This was determined by performing serial kill curve dilution overlays on solid media, followed up with kill curve by microdilution plate, and most recently confirmed with kill curve CFU count plates …
C-Myc’S Role On Methylation Of The Gata-2 Gene In Non-Small Cell Lung Carcinoma, Jonathan D. Hajduk
C-Myc’S Role On Methylation Of The Gata-2 Gene In Non-Small Cell Lung Carcinoma, Jonathan D. Hajduk
Student Scholar Showcase
Lung cancer accounts for more deaths per year than any other form of cancer, resulting in a total of 158,000 deaths per year in the U.S. Non-small cell lung cancer (NSCLC) is diagnosed in greater than 224,000 Americans every year. Methylation and subsequent downregulation of certain genes has been directly linked to the uncontrolled growth of NSCLC cells. Natural killer (NK) cells are key innate immune cells responsible for apoptosis of cells with incorrect genetic code. It is believed that one component of uncontrolled NSCLC growth is due to the NK cells’ inability to detect errors within NSCLC cells. Perhaps …