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Articles 121 - 150 of 2943
Full-Text Articles in Cell and Developmental Biology
Implementation Of The Nature Restoration Law In The Eu - Pros, Cons And Impossibilities, Emma Mcdonagh, Liam Sunner
Implementation Of The Nature Restoration Law In The Eu - Pros, Cons And Impossibilities, Emma Mcdonagh, Liam Sunner
SURE Journal: Science Undergraduate Research Experience Journal
No abstract provided.
Ireland’S Energy Transition: Unlocking The Potential Of Offshore Renewables, Caoimhe O'Hare, Madjid Karimirad, Gautam Baruah
Ireland’S Energy Transition: Unlocking The Potential Of Offshore Renewables, Caoimhe O'Hare, Madjid Karimirad, Gautam Baruah
SURE Journal: Science Undergraduate Research Experience Journal
No abstract provided.
From Conflict To Connection: Educators Leading The Shift Towards Restorative Practices (Rp) In Deis Primary Schools, Ellen Slattery, Clara Hoyne
From Conflict To Connection: Educators Leading The Shift Towards Restorative Practices (Rp) In Deis Primary Schools, Ellen Slattery, Clara Hoyne
SURE Journal: Science Undergraduate Research Experience Journal
No abstract provided.
Bridging The Gap From Preschool To Primary: From Policy To Practice, Aimee O'Connor, Cóilín O’ Braonáin
Bridging The Gap From Preschool To Primary: From Policy To Practice, Aimee O'Connor, Cóilín O’ Braonáin
SURE Journal: Science Undergraduate Research Experience Journal
No abstract provided.
Runx2 Cooperates With Srebp1 To Rewire Cancer Metabolism And Promote Aggressiveness, Emanuele Vitale, Mila Gugnoni, Veronica Manicardi, Silvia Muccioli, Federica Torricelli, Benedetta Donati, Simonetta Piana, Gloria Manzotti, Elisa Salviato, Francesca Reggiani, Cristian Ascione, Rebecca Vezzani, Moira Ragazzi, Mattia Forcato, Oriana Romano, Silvio Bicciato, Aaron Goldman, Marco Tigano, Alessia Ciarrocchi
Runx2 Cooperates With Srebp1 To Rewire Cancer Metabolism And Promote Aggressiveness, Emanuele Vitale, Mila Gugnoni, Veronica Manicardi, Silvia Muccioli, Federica Torricelli, Benedetta Donati, Simonetta Piana, Gloria Manzotti, Elisa Salviato, Francesca Reggiani, Cristian Ascione, Rebecca Vezzani, Moira Ragazzi, Mattia Forcato, Oriana Romano, Silvio Bicciato, Aaron Goldman, Marco Tigano, Alessia Ciarrocchi
Department of Pathology, Anatomy, and Cell Biology Faculty Papers
Embryonic Transcription Factors (TFs) are often reactivated in cancer, driving developmental gene programs that support phenotypic plasticity. Metabolic adaptation fuels this plasticity by supplying energy and molecular building blocks for growth. RUNX2, the master regulator of bone morphogenesis, is ectopically expressed in epithelial cancer, promoting metastasis through trans-differentiation processes like Epithelial-to-Mesenchymal Transition (EMT) and osteomimicry. By combining omics data with functional validation, we demonstrated that RUNX2 drives cancer cell metabolic rewiring by repressing mitochondrial respiration while promoting anabolic processes. We showed that RUNX2 upregulates key genes of lipid biosynthesis by regulating and cooperating with SREBP1. In vivo expression analysis in …
Setdb1 Is Critically Required For Uveal Melanoma Growth And Represents A Promising Therapeutic Target, Imène Krossa, Céline Pisibon, Yann Cheli, Karine Bille, Mélanie Dalmasso, Sabah Hamadat, Chrystel Husser, Marie Irondelle, Julien Cherfils-Vicini, Frédéric Soysouvanh, Sacha Nahon-Esteve, Arnaud Martel, Sandra Lassalle, Jean-Pierre Caujolle, Célia Maschi, Stéphanie Baillif, Dan Hasson, Saul Carcamo, Andrerw E. Aplin, Irwin Davidson, Emily Bernstein, Valeria Naim, Robert Ballotti, Corine Bertolotto, Thomas Strub
Setdb1 Is Critically Required For Uveal Melanoma Growth And Represents A Promising Therapeutic Target, Imène Krossa, Céline Pisibon, Yann Cheli, Karine Bille, Mélanie Dalmasso, Sabah Hamadat, Chrystel Husser, Marie Irondelle, Julien Cherfils-Vicini, Frédéric Soysouvanh, Sacha Nahon-Esteve, Arnaud Martel, Sandra Lassalle, Jean-Pierre Caujolle, Célia Maschi, Stéphanie Baillif, Dan Hasson, Saul Carcamo, Andrerw E. Aplin, Irwin Davidson, Emily Bernstein, Valeria Naim, Robert Ballotti, Corine Bertolotto, Thomas Strub
Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers
Metastatic uveal melanomas are highly resistant to all existing treatments. To identify actionable vulnerabilities, we conducted a CRISPR-Cas9 knockout screen using a library composed of chromatin regulators. We revealed that the lysine methyltransferase, SETDB1, plays a critical role in metastatic uveal melanoma cell proliferation and survival. Functionally, SETDB1 deficiency induces a DNA damage response, senescence-like state and growth arrest. Knockdown of SETDB1 is associated with a decreased expression of genes related to replication and cell cycle. Moreover, deficiency in CDC6, an essential regulator of DNA replication, phenocopies SETDB1 inhibition. Using a pre-clinical model, we further demonstrated that anti-SETDB1 therapy impairs …
Molecular Determinants Of Neoadjuvant Chemotherapy Resistance In Breast Cancer: An Analysis Of Gene Expression And Tumor Microenvironment, Hedda Michelle Guevara-Nieto, Carlos A. Orozco-Castaño, Rafael Parra-Medina, Jenny Nathaly Poveda-Garavito, Jone Garai, Jovanny Zabaleta, Liliana López-Kleine, Alba Lucia Combita
Molecular Determinants Of Neoadjuvant Chemotherapy Resistance In Breast Cancer: An Analysis Of Gene Expression And Tumor Microenvironment, Hedda Michelle Guevara-Nieto, Carlos A. Orozco-Castaño, Rafael Parra-Medina, Jenny Nathaly Poveda-Garavito, Jone Garai, Jovanny Zabaleta, Liliana López-Kleine, Alba Lucia Combita
School of Graduate Studies Faculty Publications
Neoadjuvant chemotherapy (NAC) is a critical component of breast cancer treatment, but the molecular mechanisms underlying resistance remain poorly understood. This study aimed to identify transcriptomic changes associated with NAC resistance across four breast cancer subtypes: Luminal A, Luminal B/HER2-positive, Luminal B/HER2-negative, and Triple-Negative Breast Cancer (TNBC). RNA-seq analysis was performed on paired pre- and post-NAC breast cancer samples from 32 nonresponders. Differentially expressed genes (DEGs) were identified, and functional enrichment analyses were conducted. Protein-protein interaction (PPI) networks were constructed to identify hub genes. Tumor microenvironment (TME) infiltration was estimated using deconvolution algorithms. The results revealed distinct gene expression profiles …
Htlv-1 And Atll: Epidemiology, Oncogenesis, And Opportunities For Community-Informed Research In The United States, Adrian D. Altieri, Sean P. Reilly, Abu Mansalay, Alan Khoo, Nettie Johnson, Zafar K. Khan, Amy Leader, Pooja Jain, Pierluigi Porcu
Htlv-1 And Atll: Epidemiology, Oncogenesis, And Opportunities For Community-Informed Research In The United States, Adrian D. Altieri, Sean P. Reilly, Abu Mansalay, Alan Khoo, Nettie Johnson, Zafar K. Khan, Amy Leader, Pooja Jain, Pierluigi Porcu
Kimmel Cancer Center Faculty Papers
Human T-cell leukemia virus type 1 (HTLV-1), the first oncogenic human retrovirus, causes adult T-cell leukemia/lymphoma (ATLL), an aggressive neoplasm of mature CD4+ T-cells that is incurable in most patients and is associated with a median survival of less than 1 year. HTLV-1 also causes inflammatory disorders, including HTLV-associated myelopathy/tropical spastic paraparesis (HAM/TSP) and uveitis. The estimated lifetime risks of ATLL and HAM/TSP in HTLV-1 carriers are 3-5% and 0.25-1.8%, respectively. Although there is uncertainty about other health effects of HTLV-1, a recent meta-analysis showed an association between HTLV-1 and cardiovascular, cerebrovascular, and metabolic diseases and a 57% increased risk …
Decorin Evokes A Pro-Lysosomal Pathway In Lymphatic Endothelial Cells, Gabriel J. Pascal, Dipon K. Mondal, Sadie Kim, Christopher Xie, Devanarayanan Siva Sankar, Jörn Dengjel, Renato V. Iozzo
Decorin Evokes A Pro-Lysosomal Pathway In Lymphatic Endothelial Cells, Gabriel J. Pascal, Dipon K. Mondal, Sadie Kim, Christopher Xie, Devanarayanan Siva Sankar, Jörn Dengjel, Renato V. Iozzo
Department of Pathology, Anatomy, and Cell Biology Faculty Papers
The lymphatic system is critical to the body's immune and circulatory system, and lymphangiogenesis, the development of new lymphatic vessels from pre-existing ones, is a significant process capitalized upon by cancer during tumorigenesis. Decorin is a small leucine-rich proteoglycan which we have previously shown to be anti-tumorigenic and a suppressor of lymphangiogenesis. We have also shown that decorin exercises its anticancer properties through its ability to evoke autophagy. Through a comprehensive and unbiased proteomic analysis, we explored the implications of decorin exposure on protein expression within mouse lymphatic endothelial cells. We discovered that decorin enriches several protein pathways, notably proteasomal …
Er Stress Tolerance Is Regulated By Copper-Dependent Perk Kinase Activity., Sarah E. Bond Newton, Xinglong Shi, Noah R. Beratan, Julia Perhacs, Jitendra K. Arya, Margaret K. Bond, Tali Gidalevitz, Cagla Akay-Espinoza, Donita C. Brady, Kelly L. Jordan-Sciutto
Er Stress Tolerance Is Regulated By Copper-Dependent Perk Kinase Activity., Sarah E. Bond Newton, Xinglong Shi, Noah R. Beratan, Julia Perhacs, Jitendra K. Arya, Margaret K. Bond, Tali Gidalevitz, Cagla Akay-Espinoza, Donita C. Brady, Kelly L. Jordan-Sciutto
Farber Institute for Neuroscience Faculty Papers
Pancreatic/PKR-like endoplasmic reticulum (ER) kinase (PERK) is a kinase that, in response to ER stress, mediates dual homeostatic and pro-apoptotic signaling. Thus, intricate regulation is required for physiological function. Attempts to modulate PERK activity have shown that the determinants of adaptive vs. maladaptive signaling remain ambiguous. Here, with purified protein, we provide evidence that PERK binds copper, identifies residues required for interaction, and demonstrates that copper is necessary for kinase activity. Furthermore, cellular PERK activity can be modulated via copper availability, and this regulatory relationship can be manipulated to dictate ER stress tolerance. Critically, these phenomena translate to phenotypes in …
Swollen Lymph Node Metastasis In Gastric Cancer: A Forgotten Prognostic Signal In Need Of Clinical Action, Keykavous Parang, Amir Nasrolahi Shirazi
Swollen Lymph Node Metastasis In Gastric Cancer: A Forgotten Prognostic Signal In Need Of Clinical Action, Keykavous Parang, Amir Nasrolahi Shirazi
Pharmacy Faculty Articles and Research
Gastric cancer (GC) remains a leading cause of cancer mortality. While the extent of nodal involvement is a well-known prognostic factor, the specific entity of swollen lymph node metastasis (SLNM), bulky nodal tumor deposits detectable radiologically or pathologically, has received little attention in staging. Recent data from a study by Cui et al demonstrated that SLNM is an independent predictor of very poor survival in GC. Through robust data and rigorous propensity-matched analyses, SLNM emerged not merely as an anatomical finding but as an independent predictor of poor prognosis, even among patients undergoing curative resection. As precision oncology advances, the …
Inflammation And Detection: Rethinking The Biomarker Landscape In Gastric Cancer, Keykavous Parang, Koosha Paydary
Inflammation And Detection: Rethinking The Biomarker Landscape In Gastric Cancer, Keykavous Parang, Koosha Paydary
Pharmacy Faculty Articles and Research
Gastric carcinoma is a leading cause of cancer-related mortality worldwide, yet reliable noninvasive biomarkers for its early detection remain limited. As research continues to elucidate the inflammatory underpinnings of tumor initiation and progression, it has become increasingly clear that pro-inflammatory cytokines may hold promise as diagnostic adjuncts. Serum cytokines such as interleukin (IL)-1β, IL-6, IL-8, and interferon-gamma have been frequently reported as elevated in gastric cancer patients compared to healthy individuals. These molecules, known for their roles in modulating tumor-promoting inflammation, angiogenesis, and immune evasion, may serve as accessible indicators of disease presence or progression. Several studies have shown that …
Editorial: Molecular Mechanisms Of Ion Channel Activation And Modulation, Meng Cui, Miao Zhang
Editorial: Molecular Mechanisms Of Ion Channel Activation And Modulation, Meng Cui, Miao Zhang
Pharmacy Faculty Articles and Research
"Ion channels are integral membrane proteins that regulate the passage of ions across cell membranes, thereby shaping processes as diverse as neuronal signaling, muscle contraction, and hormone secretion. Channel activation is typically initiated by a stimulus such as voltage, ligand binding, or mechanical stress that induces conformational changes and opens the channel pore. Beyond activation, channels are subject to fine-tuned modulation by a wide range of endogenous and exogenous agents, from lipids and neurotransmitters to pharmacological drugs. Modulators can stabilize the open, closed, or inactivated states, shift ligand affinities, or alter gating kinetics. Dissecting the structural and dynamic basis of …
A Novel Sialylation Pathway Mediated By Extracellular Vesicles In Aggressive Prostate Cancer, Camila A. Bach, Md Niamat Hossain, Ishan J. Chaudhari, Cecilia E. Verrillo, Nicole M. Naranjo, Isabella Amoroso, Anna Testa, Samuel Sey, W. Kevin Kelly, Susan L. Bellis, Aurelio Lorico, Ada G. Blidner, Gabriel A. Rabinovich, Lucia R. Languino
A Novel Sialylation Pathway Mediated By Extracellular Vesicles In Aggressive Prostate Cancer, Camila A. Bach, Md Niamat Hossain, Ishan J. Chaudhari, Cecilia E. Verrillo, Nicole M. Naranjo, Isabella Amoroso, Anna Testa, Samuel Sey, W. Kevin Kelly, Susan L. Bellis, Aurelio Lorico, Ada G. Blidner, Gabriel A. Rabinovich, Lucia R. Languino
Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers
Altered cell surface glycosylation is a hallmark of cancer; among aberrant glycan structures, hypersialylated proteins contribute to disease progression. The enzyme ST6 β-galactoside α2,6-sialyltransferase 1 (ST6GAL1) mediates α2,6-linked sialylation of N-glycosylated proteins and is upregulated in many cancers, including prostate cancer (PrCa). We propose that ST6GAL1 may be released by cancer cells in small extracellular vesicles (sEVs) in the PrCa tumor microenvironment to potentially modulate cell surface sialylation in recipient cells. We isolated sEVs from PrCa cells by density gradient separation and characterized them by nanoparticle tracking analysis using ZetaView and immunoblotting analysis. We identified ST6GAL1 in both its membrane-bound …
The Colonic Crypt: Cellular Dynamics And Signaling Pathways In Homeostasis And Cancer, Anh L. Nguyen, Molly A. Lausten, Bruce M. Boman
The Colonic Crypt: Cellular Dynamics And Signaling Pathways In Homeostasis And Cancer, Anh L. Nguyen, Molly A. Lausten, Bruce M. Boman
College of Life Sciences Faculty Papers
The goal of this review is to expand our understanding of how the cellular organization of the normal colonic crypt is maintained and elucidate how this intricate architecture is disrupted during tumorigenesis. Additionally, it will focus on implications for new therapeutic strategies targeting Epithelial-Mesenchymal Transition (EMT). The colonic crypt is a highly structured epithelial unit that functions in maintaining homeostasis through a complex physiological function of diverse cell types: SCs, transit-amplifying (TA) progenitors, goblet cells, absorptive colonocytes, Paneth-like cells, M cells, tuft cells, and enteroendocrine cells. These cellular subpopulations are spatially organized and regulated by multiple crucial signaling pathways, including …
Subtype-Specific Her3 Enrichment In Basal-Like Breast Cancer Is Regulated Via The Gata2/Gata3–Foxa1 Axis, Congcong Tan, Hui Lyu, Sanbao Ruan, Yakun Wu, Margaret E. Larsen, Shou Ching Tang, Bolin Liu
Subtype-Specific Her3 Enrichment In Basal-Like Breast Cancer Is Regulated Via The Gata2/Gata3–Foxa1 Axis, Congcong Tan, Hui Lyu, Sanbao Ruan, Yakun Wu, Margaret E. Larsen, Shou Ching Tang, Bolin Liu
School of Medicine Faculty Publications
Basal-like breast cancer (BLBC) is a major subtype of triple-negative breast cancer (TNBC), characterized by aggressive behavior, limited treatment options, and poor prognosis. While HER3 overexpression is frequently observed in TNBC and associated with poor outcomes, its subtype-specific expression and therapeutic potential remain unclear. Here, we demonstrated that HER3 signaling is selectively hyperactivated in BLBC compared to claudin-low breast cancer (CLBC) using transcriptomic profiling. Histone deacetylase inhibitors (HDACi), Romidepsin and Panobinostat, exerted potent antitumor effects on BLBC by selectively downregulating HER3 expression. HER3 levels were positively correlated with FOXA1, a key transcriptional activator. Mechanistically, we identified GATA2 and GATA3 as …
Enhancing Cataract Surgery Outcomes: Optimal Use Of Pre- And Post-Operative Eye Drops, Keith Skolnick M.D., Anu Valiaveedu
Enhancing Cataract Surgery Outcomes: Optimal Use Of Pre- And Post-Operative Eye Drops, Keith Skolnick M.D., Anu Valiaveedu
Mako: NSU Undergraduate Student Journal
Many preoperative and postoperative cataract patients struggle with comprehending the use of prescription medication as directed. Language barriers and low health literacy levels are major factors contributing to improper use of prescriptions. To increase patients comprehension, the Fort Lauderdale Eye Institute employed an educational intervention consisting of a live presentation and an instructional video. Results found that 44% of patients were hesitant to ask questions to clinical staff, 32% felt overwhelmed, and nearly 70% lacked confidence in using their prescribed eye drops. Following the intervention, 91% of patients reported increased confidence in their medications, and most indicated that the video …
Development Of Emerin Mrna Lipid Nanoparticles To Rescue Myogenic Differentiation., Nicholas Marano, Liza Elif Guner, Rachel S Riley, James M Holaska
Development Of Emerin Mrna Lipid Nanoparticles To Rescue Myogenic Differentiation., Nicholas Marano, Liza Elif Guner, Rachel S Riley, James M Holaska
Rowan-Virtua School of Osteopathic Medicine Departmental Research
Emery-Dreifuss muscular dystrophy 1 (EDMD1) arises from mutations in EMD. Most EDMD1 patients lack detectable emerin expression. They experience symptoms such as skeletal muscle wasting, joint contractures, and cardiac conduction defects. Currently, physicians rely on treating patient symptoms without addressing the underlying cause-lack of functional emerin protein. Thus, there is a need for therapeutic approaches that restore emerin protein expression to improve patient outcomes. One way would be to deliver emerin mRNA or protein directly to affected tissues to restore tissue homeostasis. Here, we evaluated the utility of lipid nanoparticles (LNPs) to deliver emerin mRNA to diseased cells. LNPs …
Adiponectin-Regulated Macrophage Responses In Aspergillus Fumigatus Infection: Mechanisms Of Uptake And Killing, Sri Harshini Goli
Adiponectin-Regulated Macrophage Responses In Aspergillus Fumigatus Infection: Mechanisms Of Uptake And Killing, Sri Harshini Goli
All-Inclusive List of Electronic Theses and Dissertations
Invasive aspergillosis (IA), caused by Aspergillus fumigatus, is a life-threatening infection in immunocompromised individuals, necessitating novel host-directed therapies. Macrophages are pivotal in antifungal defense, yet their function can be dysregulated; the influence of the adipokine adiponectin (APN) on this process is not fully understood. This thesis investigated the role of APN signaling in alveolar macrophage (AM) and bone marrow-derived macrophage (BMDM) responses to A. fumigatus and assessed the therapeutic potential of the APN receptor agonist, AdipoRon. Initial studies revealed that genetic deficiency in APN or its receptors renders AMs intrinsically pro-inflammatory and significantly impaired fungicidal activity against A. fumigatus. Subsequent …
Advanced Interactions Of Directed Energy With Retinal Pigment Epithelial Cells And Their Photochemical And Photothermal Responses, Jin B. Ha
Theses & Dissertations
Excess optical radiation can injure the retina through either rapid heat deposition (photothermal damage) or cumulative photo‑oxidative stress (photochemical damage), yet current laser‑safety limits treat these mechanisms as independent. To test that assumption, this dissertation integrated systematic wavelength, duration and temperature‑controlled laser exposures with live/dead fluorescence imaging in a melanin‑loaded hTERT‑RPE1 monolayer model. First, concurrent 447 nm (blue) and 2 µm (infra‑red) beams delivered for 200 s demonstrated a strong thermal–photochemical synergy: each beam alone was sub‑threshold (≤25 % lethality) but together produced 100 % RPE death without exceeding 50 °C, proving that modest heating markedly lowers the photon dose …
Regulation Of Icer Degradation And Its Role In Melanoma, Justin Wheelan
Regulation Of Icer Degradation And Its Role In Melanoma, Justin Wheelan
Theses, Dissertations and Culminating Projects
Melanoma is the deadliest form of skin cancer, with 100,640 new cases and 8,290 deaths estimated in the United States in 2024. While targeted therapies and immunotherapy have improved patient outcomes, resistance remains a major challenge, necessitating new therapeutic approaches. Approximately 50% of melanomas harbor BRAFⱽ⁶⁰⁰ᴱ mutations, leading to constitutive MAPK pathway activation. Targeted small molecule therapies such as BRAF and MEK inhibitors are available and initially reduce tumor burden, however resistance frequently occurs, likely through many pathways including compensatory activation of cAMP signaling. ICER (Inducible cAMP Early Repressor), a transcriptional repressor of CREB-mediated gene expression, is absent in melanoma …
Integrating Bulk And Single-Cell Transcriptomics To Investigate Intratumor Heterogeneity, Shuai Guo
Integrating Bulk And Single-Cell Transcriptomics To Investigate Intratumor Heterogeneity, Shuai Guo
Dissertations and Theses (Open Access)
Cancers are heterogeneous mixtures of tumor and surrounding cells, where each component comprises multiple distinct sub-types and/or states. Understanding the cell-type-specific contributions is critical for advancing cancer biology, yet high-throughput expression profiles from tumor tissues only represent combined signals from all diverse cellular sources. Bulk deconvolution with single-cell/nucleus (sc/sn) RNA-seq data has emerged as a powerful approach to dissect both cellular composition and cell-type-specific expression patterns, yet the technological discrepancy across sequencing platforms limits accuracy.
To systematically evaluate the impact of platform discrepancies on bulk deconvolution, we first generated a benchmark dataset of 24 healthy retinas with paired bulk and …
Impact Of S-Phase Kinase Protien 2 Blockades On Hematopoetic Stem Cell Metabolism, Nicole Elmaraghy
Impact Of S-Phase Kinase Protien 2 Blockades On Hematopoetic Stem Cell Metabolism, Nicole Elmaraghy
Electronic Theses, Projects, and Dissertations
Hematopoietic stem and progenitor cells (HSPCs) quiescence is vital for the success of bone marrow transplantation, as it preserves long term self- renewal and prevents premature exhaustion (Takubo et al., 2013; Wilson et al., 2008). However, bone marrow transplant (BMT) failure remains a clinical challenge, often due to lack of long-term engraftment and insufficient stress reliance. Both of these characteristics are tightly linked to disrupted stem cell quiescence and metabolic imbalance (Anso et al., 2017; Vannini et al., 2016). One key player is S-phase kinase protein (SKP2), an E3 ubiquitin ligase that targets cell cycle inhibitors, like p27, for proteosome …
Metabolic Regulation Of Cardiac Fibroblast Phenotype And Function., Collin Kleis Wells
Metabolic Regulation Of Cardiac Fibroblast Phenotype And Function., Collin Kleis Wells
Electronic Theses and Dissertations
Cardiac fibroblasts are central effectors of cardiac repair after myocardial infarction (MI). In response to signaling cues, they differentiate to a range of phenotypes with robust capacities to synthesize and secrete extracellular matrix (ECM) and signaling molecules. Although activated fibroblast phenotypes are associated with pronounced changes in metabolism, it remains unclear how the metabolic network upholds the effector functions of fibroblasts in the post-infarcted heart. Here, we identified that critical enzymes in the phosphoenolpyruvate (PEP) cycle, i.e. pyruvate kinase muscle-2 (PKM2) and phosphoenolpyruvate carboxykinase-2 (PCK2), are elevated in the heart after MI and examined their role in regulating post-MI remodeling …
Ctnna3 Deficiency Promotes Heart Regeneration By Enhancing Cardiomyocyte Proliferation In Neonatal Mice, Sha Zou, Wuhou Dai, Wufan Tao, Jifen Li, Zeyi Cheng, Hongyan Wang
Ctnna3 Deficiency Promotes Heart Regeneration By Enhancing Cardiomyocyte Proliferation In Neonatal Mice, Sha Zou, Wuhou Dai, Wufan Tao, Jifen Li, Zeyi Cheng, Hongyan Wang
Department of Medicine Faculty Papers
Background: Heart regeneration requires renewal of lost cardiomyocytes. However, the mammalian heart loses its proliferative capacity soon after birth, and the molecular signaling underlying the loss of cardiac proliferation postnatally is not fully understood.
Purpose: This study aimed to investigate the role of Catenin alpha 3 (Ctnna3), coding for alpha T catenin (αT-catenin) protein in regulating cardiomyocyte proliferation and heart regeneration during the neonatal period.
Methods: Here we report that ablation of Ctnna3 and highly expressed in hearts, accelerated heart regeneration following heart apex resection in neonatal mice.
Results: Our results show that Ctnna3 deficiency enhances cardiomyocyte proliferation …
Elevated Nr2f1 Underlies The Persistence Of Invasive Disease After Treatment Of Braf-Mutant Melanoma, Manoela Tiago, Timothy J. Purwin, Casey D. Stefanski, Renaira Oliveira Da Silva, Mitchell E. Fane, Yash Chhabra, Jelan I. Haj, Jessica L. F. Teh, Rama Kadamb, Weijia Cai, Sheera Rosenbaum, Vivian Chua, Nir Hacohen, Michael A. Davies, Jessie Villanueva, Inna Chervoneva, Ashani T. Weeraratna, Dan A. Erkes, Claudia Capparelli, Julio A. Aguirre-Ghiso, Andrew E. Aplin
Elevated Nr2f1 Underlies The Persistence Of Invasive Disease After Treatment Of Braf-Mutant Melanoma, Manoela Tiago, Timothy J. Purwin, Casey D. Stefanski, Renaira Oliveira Da Silva, Mitchell E. Fane, Yash Chhabra, Jelan I. Haj, Jessica L. F. Teh, Rama Kadamb, Weijia Cai, Sheera Rosenbaum, Vivian Chua, Nir Hacohen, Michael A. Davies, Jessie Villanueva, Inna Chervoneva, Ashani T. Weeraratna, Dan A. Erkes, Claudia Capparelli, Julio A. Aguirre-Ghiso, Andrew E. Aplin
Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers
Despite the success of targeted inhibitors in cutaneous melanoma, therapeutic responses are limited by the aged tumor microenvironment and drug-tolerant residual cells. Given the similarities between drug tolerance and cellular dormancy, we studied the dormancy marker, nuclear receptor subfamily 2 group F member 1 (NR2F1), in response to BRAF-V600E inhibitors (BRAFi) plus MEK inhibitors (MEKi) in BRAF-mutant melanoma models. Transcriptomic analysis of melanoma patient samples treated with BRAFi + MEKi showed increased NR2F1. NR2F1 was highly expressed in the drug-tolerant invasive cell state of minimal residual disease in patient-derived and mouse-derived xenografts on BRAFi + MEKi. NR2F1 over-expression was sufficient …
In Silico Prediction Of Cytotoxic T-Cell Epitopes From Helicobacter Pylori Virulence Factors Using An Immunoinformatics Approach, Demy Valerie Chacon, Kiana Alika Co, Daphne Noreen Enriquez, Aubrey Love Labarda, Reanne Eden Manongsong, Edward Kevin B. Bragais
In Silico Prediction Of Cytotoxic T-Cell Epitopes From Helicobacter Pylori Virulence Factors Using An Immunoinformatics Approach, Demy Valerie Chacon, Kiana Alika Co, Daphne Noreen Enriquez, Aubrey Love Labarda, Reanne Eden Manongsong, Edward Kevin B. Bragais
Biology Faculty Publications
Background: Helicobacter pylori infects approximately half of the global population, leading to gastric and duodenal ulcers. Despite the availability of antibiotics, challenges such as patient reluctance, high treatment costs, and antibiotic resistance limit their effectiveness, making vaccination a promising alternative. This study used immunoinformatics to identify candidate epitopes for a multiepitope vaccine construct against H. pylori.
Material and methods: The protein variability server was utilized for conservation analysis. The epitopes were screened for antigenicity, allergenicity, toxicity, cross-reactivity, and population coverage. Selected epitopes were docked with their corresponding human leukocyte antigen (HLA) alleles, and thermodynamic quantities were determined. Five virulence …
Combination Of Irreversible Electroporation And Clostridium Novyi-Nt Bacterial Therapy For Colorectal Liver Metastasis, Zigeng Zhang, Guangbo Yu, Qiaoming Hou, Farideh Amirrad, Sha Webster, Surya M. Nauli, Jianhua Yu, Vahid Yaghmai, Aydin Eresen, Zhuoli Zhang
Combination Of Irreversible Electroporation And Clostridium Novyi-Nt Bacterial Therapy For Colorectal Liver Metastasis, Zigeng Zhang, Guangbo Yu, Qiaoming Hou, Farideh Amirrad, Sha Webster, Surya M. Nauli, Jianhua Yu, Vahid Yaghmai, Aydin Eresen, Zhuoli Zhang
Pharmacy Faculty Articles and Research
Colorectal liver metastasis (CRLM) poses a significant challenge in oncology due to its high incidence and poor prognosis in unresectable cases. Current treatments, including surgical resection, systemic chemotherapy, and liver-directed therapies, often fail to effectively target hypoxic tumor regions, which are inherently more resistant to these interventions. This review examines the potential of a novel therapeutic strategy combining irreversible electroporation (IRE) ablation and Clostridium novyi-nontoxic (C. novyi-NT) bacterial therapy. IRE is a non-thermal tumor ablation technique that uses high-voltage electric pulses to create permanent nanopores in cell membranes, leading to cell death while preserving surrounding structures, and …
The Influence Of Myocardin Effector Genes On The Tgf-Beta Smad3 Signaling Pathway In Human Pleural Mesothelial Cells, Hema Chandra Hrushi Dusharla
The Influence Of Myocardin Effector Genes On The Tgf-Beta Smad3 Signaling Pathway In Human Pleural Mesothelial Cells, Hema Chandra Hrushi Dusharla
Biotechnology Theses
Pleural Fibrosis (PF) involves excessive extracellular matrix (ECM) deposition, mainly by myofibroblasts, leading to pleural thickening and impaired lung function. Pleural mesothelial cells (PMCs) contribute via mesothelial and mesenchymal transition (MesoMT), triggered by cytokines like TGF-β. Our lab identified Myocardin (MyoCD), a transcriptional co-activator of cardiac and smooth muscle, is a master regulator of pleural fibrosis through interactions with serum response factor (SRF) and Smad2/3 transcription factors which initiate fibrosis signaling. RNA sequencing and qPCR analysis revealed that silencing MyoCD decreased the expression of CTNNB1, MDFI, and Tspan2. MDFI emerged as a potent candidate, as this gene affecting the expression …
A Cancer Education Needs Assessment: Informing Middle-Aged Female Patients About The Relationships Between Obesity And Women’S Health Concerns In The Reproductive System, Breast, And Endometrial Health, Batul Mirza
MUSC Theses and Dissertations
Obesity significantly impacts women’s health, particularly among middle-aged women, by increasing the risk of hormone-sensitive cancers such as breast, endometrial, and reproductive system cancers. This study examines the educational needs of this demographic group regarding obesity-related cancer risks and explores effective intervention strategies. Obesity-induced mechanisms – hormonal imbalances, chronic inflammation, and insulin resistance – drive cancer susceptibility, emphasizing the need for targeted health education. The study employs a qualitative design, which includes interviews with subject matter experts (SMEs) and surveys of middle-aged women. The goal is to assess awareness, perceived barriers, and preferred learning methods. Findings suggest that with many …