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Articles 91 - 120 of 143
Full-Text Articles in Cancer Biology
Stat3, Nf-Κb, And Estrogen Receptor Beta: The Balance Of Inflammation In K-Ras Mutant Lung Adenocarcinoma, Michael J. Clowers
Stat3, Nf-Κb, And Estrogen Receptor Beta: The Balance Of Inflammation In K-Ras Mutant Lung Adenocarcinoma, Michael J. Clowers
Dissertations and Theses (Open Access)
K-ras mutant lung adenocarcinoma (KM-LUAD) is a difficult-to-treat cancer subtype in which chronic inflammation pervades the tumor immune microenvironment (TIME). Pro-inflammatory pathways dampen the response to treatments, including immune checkpoint inhibitors, necessitating therapies that target this inflammatory signaling network in the TIME. This network is underpinned by interaction and coordination of two inflammatory pathways: signal transducer and activator of transcription 3 (STAT3) and nuclear factor kappa B (NF-κB). The balance of these transcription factors determines the degree of anti- vs. pro-tumor immunity, and a skewing towards STAT3 is known to promote tumor development and a pro-tumor TIME. It is also …
Wired For Degradation: How Post-Translational Control Of Inducible Camp Early Repressor Protein Influences Melanoma Fate, Melissa Rose Spigelman
Wired For Degradation: How Post-Translational Control Of Inducible Camp Early Repressor Protein Influences Melanoma Fate, Melissa Rose Spigelman
Theses, Dissertations and Culminating Projects
Melanoma is a highly aggressive form of skin cancer frequently driven by mutations in the BRAF gene, particularly the BRAFⱽ⁶⁰⁰ᴱ variant, which leads to sustained activation of the MAPK signaling cascade. Recent studies implicate the cyclic AMP (cAMP) signaling axis in melanoma progression and therapeutic resistance, highlighting the role of the Inducible cAMP Early Repressor (ICER), a transcriptional antagonist of CREB and CREM. ICER is downregulated during melanomagenesis and subject to post-translational regulation via phosphorylation and ubiquitin-mediated degradation. To investigate ICER’s functional relevance in vivo, e utilized a zebrafish melanoma model harboring brafⱽ⁶⁰⁰ᴱ, tp53−/−, and mitf−/−mutations, in which mitf expression …
The Development Of Magmas Inhibition As A Potential Therapeutic Target In Temozolomide Resistant Glioma, Jennifer Duyen Tran
The Development Of Magmas Inhibition As A Potential Therapeutic Target In Temozolomide Resistant Glioma, Jennifer Duyen Tran
Electronic Theses, Projects, and Dissertations
Glioblastoma (GBM) is a highly aggressive brain tumor that remains a significant challenge in neuro-oncology today. Approximately 90% of GBM patients experience tumor recurrence within one to two years of diagnosis. Therefore, due to its high resistance to conventional therapies, new treatment strategies are urgently needed. The current standard of care for GBM is the chemotherapeutic Temozolomide (TMZ). TMZ is an oral alkylating agent, it functions by delivering a methyl group to purine bases. The development of resistance to TMZ is partially regulated by the DNA repair enzyme O6- methylguanine-DNA methyltransferase (MGMT). Despite the potential shown by MGMT promoter methylation …
Mcf-7 Dense Breast Cancer Cells Modulate Stress Through Senescence, Lara Donadio, Moses Alfonso, Josiah Philip, Tyler Zatarain
Mcf-7 Dense Breast Cancer Cells Modulate Stress Through Senescence, Lara Donadio, Moses Alfonso, Josiah Philip, Tyler Zatarain
Molloy Multidisciplinary Undergraduate Research Conference
Breast cancer remains a leading cause of cancer-related mortality among women worldwide, with dense breast tissue being recognized as a significant risk factor for its development. This dense breast tissue, characterized by a higher concentration of mammary glandular tissue, represents additional sites for tumor development. The following study explores how the MCF-7 immortal cell line, representing dense breast cancer, modulates stress responses through cellular senescence. Cellular senescence is a defense mechanism that halts the cell cycle and acts as a tumor suppression mechanism, preventing out-of-control cell proliferation triggered by cytological stress. To simulate these stress conditions, we applied two agents: …
Enhancing Skin Cancer Literacy Amongst Young Adults: A Digital Design, Katherine Stoll
Enhancing Skin Cancer Literacy Amongst Young Adults: A Digital Design, Katherine Stoll
Honors Projects
The skin plays a vital role in protection, regulation, and homeostasis of the human body. Skin cancer, despite being mostly preventable, is one of the most common cancers. Young adults, ages 18 to 25, are vulnerable targets due to risky behaviors and misinformation regarding skin cancer. This project was designed by using digital media and website design to enhance skin cancer health literacy among young adults. Using a systematic literature review and research methods, an interactive website was designed to improve skin cancer health literacy and eliminate common misconceptions. The topics addressed throughout the website were the biological factors of …
Leveraging Attention Mechanism To Unlock Gene And Protein Attributes, Ala Jararweh
Leveraging Attention Mechanism To Unlock Gene And Protein Attributes, Ala Jararweh
Computer Science ETDs
Advancing personalized medicine depends on effectively integrating and interpreting the vast, heterogeneous landscape of biological data, from genomic sequences and transcriptomics to the insights embedded in scientific literature. Current machine learning models often focus on single data modalities, limiting their capacity to capture the multifaceted nature of biological systems. We address this gap by developing three attention-based machine-learning models integrating diverse data modalities. Firstly, DeepVul is a multi-task model that leverages cancer transcriptome data to predict genes critical for cancer survival and their corresponding drugs. Subsequently, LitGene refines gene representations by integrating textual information from the scientific literature. Finally, Protein2Text …
Understanding Challenges To Breast Cancer Screening For African American Women In Detroit: A Study Of Social And Healthcare Inequities, Miranda Goodson, Whitney Bowyer, Erika Lopez, Anna Lundh
Understanding Challenges To Breast Cancer Screening For African American Women In Detroit: A Study Of Social And Healthcare Inequities, Miranda Goodson, Whitney Bowyer, Erika Lopez, Anna Lundh
Medical Student Research Symposium
African American (AA) women have lower adherence to breast cancer screening guidelines, which may contribute to delayed diagnoses and reduced survival rates. These disparities are often influenced by limited access to quality healthcare and persistent inequities faced within Michigan. With Detroit's population being 77% AA, examining studies focused on the experiences of Black women within urban healthcare networks is essential to understanding the connections between demographic, socioeconomic factors, and breast cancer outcomes. To assess these studies, a literature search was conducted using Ovid Medline yielding 24 associated articles.
Mammogram rates among AA women in Detroit remain low, reflecting a complex …
Characterizing Kmt2d In Endometrial Cancer, Katherine R. Davanzo
Characterizing Kmt2d In Endometrial Cancer, Katherine R. Davanzo
Medical Student Research Symposium
Endometrial cancer is rising in incidence in the United States, notably among premenopausal women. This increase and the trend of delayed childbearing warrant the need for further advancement in fertility-sparing treatment for endometrial cancer. A gene left widely unexplored in its possible clinical utility as a target for fertility-sparing treatment is KMT2D, a lysine-specific methyltransferase and tumor suppressor. Preliminary gene set enrichment analysis on a 12Z endometriotic epithelial cell line identified TIMP3 as a gene that is possibly regulated by KMT2D expression. TIMP3 encodes an irreversible inhibitor of matrix metalloproteinases (MMPs), a well-recognized class of proteins as contributing to the …
Investigation Of The Effects Of The Peptidylarginine Deiminase Inhibitor Cl-Amidine On Apoptosis And Gene Expression In Ovarian Cancer, Victoria Walden
Investigation Of The Effects Of The Peptidylarginine Deiminase Inhibitor Cl-Amidine On Apoptosis And Gene Expression In Ovarian Cancer, Victoria Walden
Longwood Senior Thesis Proposal
Peptidylarginine deiminases (PADs) are a family of enzymatic proteins responsible for the conversion of arginine and methylarginine residues to citrulline. This conversion is important for several key cellular processes including transcriptional gene regulation. Recently, a link has been established between overexpression of a particular PAD, PAD4, and the accelerated progression of both autoimmune diseases and cancers. Ovarian cancer exhibits heightened levels of PAD4 in affected cells. High levels of PAD4 are associated with the formation of neutrophil extracellular traps (NETs) that promote cancer metastasis, and downregulation of the p53 apoptotic pathway. Thus, it is important to explore inhibitors of PAD4. …
The Present And Future Of Robotic Surgery In Breast Cancer And Breast Reconstruction, Brett Allen, Alexis Knutson, Noama Iftekhar, Casey Giles, Jarrell Patterson, Joshua Macdavid, Richard Baynosa
The Present And Future Of Robotic Surgery In Breast Cancer And Breast Reconstruction, Brett Allen, Alexis Knutson, Noama Iftekhar, Casey Giles, Jarrell Patterson, Joshua Macdavid, Richard Baynosa
Department of Plastic Surgery Faculty Research
Background: Breast cancer is the second most common cancer in women with an improving mortality rate and a growing need for reconstruction following oncologic resection. Advancements in robotic surgery and minimally invasive techniques have offered refinement to traditional open techniques of flap harvest for reconstruction, particularly regarding improved donor site morbidity. Methods: The literature review was based on a PubMed database search using the keyword “Robotic breast reconstruction” in conjunction with the Boolean operators “Flap”, “Latissimus”, and “DIEP” to specify the search. In total, 106 results were generated, which were then manually reviewed and condensed for a comprehensive stance on …
Dysregulation Of Cholesterol Metabolism And Sorafenib Drug Resistance In Hepatocellular Carcinoma, Veerababu Nagati, Dennis Kwabiah, Yamile Abuchard Anaya, Ana Ayala Pazzi, Manish K. Tripathi
Dysregulation Of Cholesterol Metabolism And Sorafenib Drug Resistance In Hepatocellular Carcinoma, Veerababu Nagati, Dennis Kwabiah, Yamile Abuchard Anaya, Ana Ayala Pazzi, Manish K. Tripathi
Research Symposium
Background: Hepatocellular carcinoma (HCC) is among the most prevalent cancers and a leading cause of cancer-related deaths worldwide. Sorafenib, a multikinase inhibitor, serves as a key first-line treatment for HCC when surgical intervention is not an option. However, primary and acquired resistance to sorafenib has significantly limited its effectiveness, reducing the disease control rate. Dysregulation of numerous genes that influence cancer cell proliferation, survival, and drug resistance contributes to this challenge. Identifying the molecular drivers of sorafenib resistance remains critical to improving treatment outcomes. Several factors, including activation of oncogenic pathways (e.g., Akt/mTOR), hypoxia, cholesterol metabolism, EMT, multidrug resistance, and …
Investigating The Ability Of Foxo1 To Maintain Stem Cells, Stella A. Rios, Megan E. Keniry
Investigating The Ability Of Foxo1 To Maintain Stem Cells, Stella A. Rios, Megan E. Keniry
Research Symposium
Background: Our group discovered that FOXO transcription factors drive stem gene expression in cancer to promote aggressiveness. Work by our group and others demonstrated that FOXO factors universally maintain stem cells including in cancer, embryonic, hematogenic and neuronal contents. Our current efforts are delineating the molecular underpinnings by which FOXO factors halt differentiation to maintain stem cells.
In this project, we are employing myoblasts as a valuable model to examine how Foxo1 maintains stem cells. Foxo1-regulated genes in myoblasts closely parallel its targets in glioblastoma and basal breast cancer stem cells, including targets such as Leukemia Inhibitory Factor, …
Uca1 As A Key Regulator Of The Warburg Effect During Anoikis Resistance In Colorectal Cancer Metastasis, Ricardo Pequeno Bracho, Salique Hassan Shaham, Yamile Abuchard Anaya, Sophia Leslie, Kyle Doxtater, Subhash Chauhan, Bilal Hafeez, Tamer Oraby, Manish K. Tripathi
Uca1 As A Key Regulator Of The Warburg Effect During Anoikis Resistance In Colorectal Cancer Metastasis, Ricardo Pequeno Bracho, Salique Hassan Shaham, Yamile Abuchard Anaya, Sophia Leslie, Kyle Doxtater, Subhash Chauhan, Bilal Hafeez, Tamer Oraby, Manish K. Tripathi
Research Symposium
Colorectal carcinoma (CRC) is the second leading cause of cancer-related mortality in the United States. While localized CRC has a 90% five-year survival rate, this drops sharply to 14% upon metastasis. Metastasis occurs in approximately 40–50% of CRC cases and requires cancer cells to acquire anoikis resistance—a critical adaptation allowing survival after detachment from the extracellular matrix, enabling migration and colonization of secondary sites. Understanding the molecular mechanisms driving anoikis resistance, particularly those linked to altered glucose metabolism, is essential for developing targeted therapies for metastatic CRC.
Cancer cells frequently exhibit the Warburg Effect, a metabolic adaptation favoring glycolysis over …
5-Hydroxymethylcytosine Sequencing Of Plasma Cell-Free Dna Identifies Epigenomic Features In Prostate Cancer Patients Receiving Androgen Deprivation Therapies, Qianxia Li, Chiang-Ching Huang, Shane Huang, Yijun Tian, Jinyong Huang, Amirreza Bitaraf, Xiaowei Dong, Marja T. Nevalainen, Manishkumar Patel, Jodie Wong, Jingsong Zhang, Brandon J Manley, Jong Y. Park, Manish Kohli, Elizabeth M. Gore, Deepak Kilari, Liang Wang
5-Hydroxymethylcytosine Sequencing Of Plasma Cell-Free Dna Identifies Epigenomic Features In Prostate Cancer Patients Receiving Androgen Deprivation Therapies, Qianxia Li, Chiang-Ching Huang, Shane Huang, Yijun Tian, Jinyong Huang, Amirreza Bitaraf, Xiaowei Dong, Marja T. Nevalainen, Manishkumar Patel, Jodie Wong, Jingsong Zhang, Brandon J Manley, Jong Y. Park, Manish Kohli, Elizabeth M. Gore, Deepak Kilari, Liang Wang
Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers
BACKGROUND: We evaluated whether 5hmC signatures in cell-free DNA (cfDNA) are associated with treatment failure to androgen-deprivation therapies (ADT) among men with hormone-naive prostate cancer.
METHODS: We collected a total of 139 serial plasma samples from 55 prostate cancer patients receiving ADT at 3 time points including baseline (before initiating ADT, n = 55); 3 months (after initiating ADT, n = 55); and disease progression (n = 15) within 24 months or 24 months if no progression was detected (n = 14). We used selective chemical labeling sequencing to quantify 5hmC abundance across the genome and Kaplan-Meier analysis to assess …
Uncovering The Mechanisms Of Glioblastoma Relapse Prevention With Niclosamide And Camptothecin Treatment, Xiaoqian Fang, Araely Ruiz, Eunseo Yang, Brianna Morin, Kimberly Herrera-Toscano, Megan Szobody, Josue Fonseca, John-Beloved Osho, Raquel Lara
Uncovering The Mechanisms Of Glioblastoma Relapse Prevention With Niclosamide And Camptothecin Treatment, Xiaoqian Fang, Araely Ruiz, Eunseo Yang, Brianna Morin, Kimberly Herrera-Toscano, Megan Szobody, Josue Fonseca, John-Beloved Osho, Raquel Lara
Research Symposium
Background: Glioblastoma multiforme (GBM) is the most common and lethal malignant primary brain tumor for which the development of efficacious chemotherapeutic agents remains an urgent need. In our previous studies, we demonstrated that niclosamide and camptothecin (CPT) synergistically suppressed the proliferation in human glioblastoma U87 MG cells. Recently, we observed that U87 MG cells failed to resume growth after the combined treatment was removed, a phenomenon not seen with either agent alone. We aimed to explore the sustained anti-tumor effects of niclosamide and CPT in GBM.
Methods: Human glioblastoma U87 MG cells were treated with 5 mM niclosamide, 5 mM …
Artesunate Enhances The Efficacy Of Enzalutamide In Advanced Prostate Cancer, Xinyi Wang, Jinghui Liu, Fengyi Mao, Yifan Kong, Qiongsi Zhang, Chaohao Li, Daheng He, Chi Wang, Yanquan Zhang, Ruixin Wang, Sally R. Ellingson, Qiou Wei, Zhiguo Li, Xiaoqi Liu
Artesunate Enhances The Efficacy Of Enzalutamide In Advanced Prostate Cancer, Xinyi Wang, Jinghui Liu, Fengyi Mao, Yifan Kong, Qiongsi Zhang, Chaohao Li, Daheng He, Chi Wang, Yanquan Zhang, Ruixin Wang, Sally R. Ellingson, Qiou Wei, Zhiguo Li, Xiaoqi Liu
Markey Cancer Center Faculty Publications
Prostate cancer (PCa) is one of the leading causes of death among men worldwide. Treatments targeting the androgen receptor pathway remain the standard therapy for PCa patients. Enzalutamide (ENZ), a second-generation androgen receptor inhibitor, was developed to treat castration-resistant prostate cancer. However, while patients initially respond to ENZ, drug resistance typically develops within a few months. Artesunate (ART), a semisynthetic derivative of the Artemisinin plant, is approved for antimalaria treatment. In this study, we conducted an FDA-approved drug screening and identified ART as a potential candidate for overcoming ENZ resistance in PCa. Mechanistically, ART induces the degradation of c-Myc, enhancing …
The Role Of Secondary And Tertiary Structure In The Cap-Independent Translation Of Fgf-9 And Hif-1-Alpha, Amanda Michelle Whittaker
The Role Of Secondary And Tertiary Structure In The Cap-Independent Translation Of Fgf-9 And Hif-1-Alpha, Amanda Michelle Whittaker
Dissertations, Theses, and Capstone Projects
Under normoxic conditions, eukaryotes initiate translation of RNA through eIF4E recognition of the 5’ cap. However, under cellular stress, eukaryotic translation must be initiated through a 4E-independent, or “cap-independent” mechanism, involving eukaryotic initiation factor 4G (eIF4G) binding directly to the 5’ untranslated regions (5’ UTR) of the RNA. eIF4G binding then recruits the ribosome to the transcript. While this mechanism is useful for translation of apoptotic transcripts and transcripts involved in cell survival, cap-independent translation is also utilized by oncogenic RNA for tumorigenesis. Previous work by our lab and others has categorized this recruitment and initiation mechanism as either internal-ribosome-entry-site …
Crosstalk Between Nnos/No And Cox-2 Enhances Interferon-Gamma-Stimulated Melanoma Progression, Anika Patel, Shirley Tong, Moom R. Roosan, Basir Syed, Amardeep Awasthi, Richard B. Silverman, Sun Yang
Crosstalk Between Nnos/No And Cox-2 Enhances Interferon-Gamma-Stimulated Melanoma Progression, Anika Patel, Shirley Tong, Moom R. Roosan, Basir Syed, Amardeep Awasthi, Richard B. Silverman, Sun Yang
Pharmacy Faculty Articles and Research
Background/Objectives: Interferon gamma (IFN-γ) in the melanoma tumor microenvironment plays opposing roles, orchestrating both pro-tumorigenic activity and anticancer immune responses. Our previous studies demonstrated the role of neuronal nitric oxide synthase (nNOS) in IFN-γ-stimulated melanoma progression. However, the underlying mechanism has not been well defined. This study determined whether the nNOS/NO and COX-2/PGE2 signaling pathways crosstalk and augment the pro-tumorigenic effects of IFN-γ in melanoma. Methods: Bioinformatic analysis of patient and cellular proteomic data was conducted to identify proteins of interest associated with IFN-γ treatment in melanoma. Changes in protein expression were determined using various analytical techniques including …
Sigma1 Inhibitor Suppression Of Adaptive Immune Resistance Mechanisms Mediated By Cancer Cell Derived Extracellular Vesicles, Paola A. Castagnino, Derick A. Haas, Luca Musante, Nathalia A. Tancler, Bach V. Tran, Rhonda Kean, Alexandra R. Steck, Luis A. Martinez, Elahe A. Mostaghel, D. Craig Hooper, Felix J. Kim
Sigma1 Inhibitor Suppression Of Adaptive Immune Resistance Mechanisms Mediated By Cancer Cell Derived Extracellular Vesicles, Paola A. Castagnino, Derick A. Haas, Luca Musante, Nathalia A. Tancler, Bach V. Tran, Rhonda Kean, Alexandra R. Steck, Luis A. Martinez, Elahe A. Mostaghel, D. Craig Hooper, Felix J. Kim
Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers
Adaptive immune resistance in cancer describes the various mechanisms by which tumors adapt to evade anti-tumor immune responses. IFN-γ induction of programmed death-ligand 1 (PD-L1) was the first defined and validated adaptive immune resistance mechanism. The endoplasmic reticulum (ER) is central to adaptive immune resistance as immune modulatory secreted and integral membrane proteins are dependent on ER. Sigma1 is a unique ligand-regulated integral membrane scaffolding protein enriched in the ER of cancer cells. PD-L1 is an integral membrane glycoprotein that is translated into the ER and processed through the cellular secretory pathway. At the cell surface, PD-L1 is an immune …
An In Vivo Study Of Lns8801, A Gper Agonist, In A Spontaneous Melanoma-Prone Mouse Model, Tgs., Christina Marinaro, John Sauer, Christopher A Natale, Todd Ridky, Suzie Chen
An In Vivo Study Of Lns8801, A Gper Agonist, In A Spontaneous Melanoma-Prone Mouse Model, Tgs., Christina Marinaro, John Sauer, Christopher A Natale, Todd Ridky, Suzie Chen
Rowan-Virtua School of Osteopathic Medicine Departmental Research
Melanoma is the most aggressive and deadly form of skin cancer that arises from the transformation of melanocytes, the pigment producing cells of the skin. In the year 2024 there will be approximately 10,000 new cases of melanoma diagnosed and approximately 8,000 deaths attributed to melanoma in the United States. In this study we treated a group of male and female transgenic mice that spontaneously develop metastatic melanoma, TGS, with a G-protein-coupled estrogen receptor agonist LNS8801 to assess the efficacy on disease progression. A second group of male and female TGS mice was also exposed to UVB irradiation to mimic …
Anti-Cancer Compounds Based On Natural Imidazole Compounds, Autumn Forsythe, Victoria Hardy, Kerri L. Shelton
Anti-Cancer Compounds Based On Natural Imidazole Compounds, Autumn Forsythe, Victoria Hardy, Kerri L. Shelton
CSU Tower Day
We are developing a comprehensive review on imidazole-based compounds of natural origin, the most common groups of compounds, and their properties, such as the imidazole ring. The intent of this presentation is to learn about the compound’s occurrence, general/predicted properties, and advantages. The review will be a fluid development comparing imidazole derivatives of natural origin with antinociceptive/lethal properties from the last 5 years. This review would include both purely extracted products but also those modified by synthesis.
Ms Environmental Biology Capstone: Evaluating Environmental Risks And Conflicts In Golf Course Landscapes, Meredith Boos
Ms Environmental Biology Capstone: Evaluating Environmental Risks And Conflicts In Golf Course Landscapes, Meredith Boos
Regis University Student Publications (comprehensive collection)
1) This review investigates the relationship between pesticide use on golf courses and in agriculture to determine whether the adverse health effects documented in agricultural settings also apply to golf course environments. While the negative health effects from agricultural pesticide use are well established, golf courses use pesticides with greater frequency and intensity, suggesting a potentially higher exposure risk for both workers and players.
2) This study proposes methods to quantify pesticide bioaccumulation on golf courses and adjacent lands. We hypothesize that areas surrounding golf courses will exhibit a spatial gradient of pesticide accumulation, increasing with proximity to treated sites …
Chilling Insights: A Comparative Study Of Cancer Tissue Preservation, Rebecca Bascom, Paige Nelson, Jacob Harris, Jack Davis, Mackenzie Burr, Jeffrey Okojie, David Booker, Ken Dixon, Jared Barrott
Chilling Insights: A Comparative Study Of Cancer Tissue Preservation, Rebecca Bascom, Paige Nelson, Jacob Harris, Jack Davis, Mackenzie Burr, Jeffrey Okojie, David Booker, Ken Dixon, Jared Barrott
Library/Life Sciences Undergraduate Poster Competition 2025
It is a fact that personalized cancer treatment leads to better patient outcomes. But what if the current treatments aren't as personalized as they could be?
Clinical cancer tissue samples are typically sent to labs as formalin-fixed and paraffin-embedded (FFPE) tissues. A recent study4 indicates that cryo-preserved (CP) tissues offer significantly better DNA quality and quantity than FFPE samples, suggesting a need to reevaluate preservation methods. We aim to expand this research by comparing protein expression in FFPE and CP samples.
Specifically, we will focus on PD-L1, a protein that inhibits T-cells and is overexpressed in all cancer cells. The …
Artesunate Enhances The Efficacy Of Enzalutamide In Advanced Prostate Cancer, Xinyi Wang, Jinghui Liu, Fengyi Mao, Yifan Kong, Qiongsi Zhang, Chaohao Li, Daheng He, Chi Wang, Yanquan Zhang, Ruixin Wang, Sally R. Ellingson, Qiou Wei, Zhiguo Li, Xiaoqi Liu
Artesunate Enhances The Efficacy Of Enzalutamide In Advanced Prostate Cancer, Xinyi Wang, Jinghui Liu, Fengyi Mao, Yifan Kong, Qiongsi Zhang, Chaohao Li, Daheng He, Chi Wang, Yanquan Zhang, Ruixin Wang, Sally R. Ellingson, Qiou Wei, Zhiguo Li, Xiaoqi Liu
Toxicology and Cancer Biology Faculty Publications
Prostate cancer (PCa) is one of the leading causes of death among men worldwide. Treatments targeting the androgen receptor pathway remain the standard therapy for PCa patients. Enzalutamide (ENZ), a second-generation androgen receptor inhibitor, was developed to treat castration-resistant prostate cancer. However, while patients initially respond to ENZ, drug resistance typically develops within a few months. Artesunate (ART), a semisynthetic derivative of the Artemisinin plant, is approved for antimalaria treatment. In this study, we conducted an FDA-approved drug screening and identified ART as a potential candidate for overcoming ENZ resistance in PCa. Mechanistically, ART induces the degradation of c-Myc, enhancing …
Characterizing And Targeting The Non-Catalytic Functions Of Phosphatase Of Regenerating Liver 3 (Prl-3) In Oncogenesis And Cancer Progression, Jeffery T. Jolly
Characterizing And Targeting The Non-Catalytic Functions Of Phosphatase Of Regenerating Liver 3 (Prl-3) In Oncogenesis And Cancer Progression, Jeffery T. Jolly
Theses and Dissertations--Molecular and Cellular Biochemistry
Phosphatase of Regenerating Liver 3 (PRL-3) is frequently upregulated in various cancers and is associated with poor patient prognosis. Although traditionally studied for its phosphatase activity, PRL-3 also interacts with the CNNM family of magnesium transporters through its catalytic site, and these two functions are mutually exclusive at any given time. Most previous studies relied on a commonly used PRL-3 mutation that disrupts both phosphatase activity and CNNM binding, making it challenging to determine which function drives its oncogenic effects. To address this gap in the field, I utilized a panel of PRL-3 mutants that selectively disrupt either phosphatase activity …
Potentiation Of Gelonin Cytotoxicity By Pulsed Electric Fields, Olga N. Pakhomova, Eleni Zivla, Giedre Silkuniene, Mantas Silkunas, Andrei G. Pakhomov
Potentiation Of Gelonin Cytotoxicity By Pulsed Electric Fields, Olga N. Pakhomova, Eleni Zivla, Giedre Silkuniene, Mantas Silkunas, Andrei G. Pakhomov
Bioelectrics Publications
Gelonin is a ribosome-inactivating protein with extreme intracellular toxicity but poor permeation into cells. Targeted disruption of cell membranes to facilitate gelonin entry is explored for cancer and tissue ablation. We demonstrate a hundreds- to thousands-fold enhancement of gelonin cytotoxicity by pulsed electric fields in the T24, U-87, and CT26 cell lines. The effective gelonin concentration to kill 50% of cells (EC₅₀) after electroporation ranged from <1 nM to about 100 nM. For intact cells, the EC₅₀ was unattainable even at the highest gelonin concentration of 1000 nM, which reduced cell survival by only 5–15%. For isoeffective electroporation treatments using 300 ns, 9 µs, and 100 µs pulses, longer pulses were more efficient at lowering gelonin EC₅₀. Increasing the electric field strength of 8, 100 µs pulses from 0.65 to 1.25 kV/cm reduced gelonin EC₅₀ from 128 nM to 0.72 nM. Conversely, the presence of 100 nM gelonin enabled a more than 20-fold reduction in the number of pulses required for equivalent cell killing. Pulsed electric field-mediated delivery of gelonin shows promise for hyperplasia ablation at concentrations sufficiently low to minimize or avoid systemic toxicity.
Physical Ablative Methods And Cancer Cell Death: Implications For Immunity And Therapies, Alessandra Rossi, Claudia Muratori
Physical Ablative Methods And Cancer Cell Death: Implications For Immunity And Therapies, Alessandra Rossi, Claudia Muratori
Bioelectrics Publications
Surgery has traditionally been a cornerstone in cancer treatment, yet its feasibility can be limited by factors such as tumor location and patient health conditions. When surgery is not viable, thermal and pulsed electric field (PEF)-based ablation technologies offer valuable alternatives. Emerging evidence suggests that these approaches not only target tumors effectively but also stimulate antitumor immune responses. In this review, we begin by examining the distinctive features of hyperthermic treatments (radiofrequency and microwave ablation), cryoablation, and PEF-technologies. Subsequently, we discuss the mechanisms of cell death, stress responses, and release of danger signals triggered by these diverse ablation technologies. Finally, …
Spermidine And Polyamine Blockade As Key Mediators Of Intestinal Epithelial Cell Functions, Madison Lynn Flory
Spermidine And Polyamine Blockade As Key Mediators Of Intestinal Epithelial Cell Functions, Madison Lynn Flory
Theses and Dissertations--Microbiology, Immunology, and Molecular Genetics
Frequently, alterations in the composition of the gut microbiota and its metabolites are linked with intestinal diseases, including inflammatory bowel disease and colorectal cancer. However, the direct connections between alterations in the microbiome and disease states often remain elusive. Prior research has identified increases in both polyamines, which are a class of microbial metabolite, and in the abundance of bacteria that can produce polyamines, in a murine colorectal cancer model. Understanding the significance of the interaction between these microbial metabolites and intestinal epithelial cells (IECs) will provide new and expanded evidence of the importance of the gut microbiome in colorectal …
Synthesis, Characterization, And Biological Activity Of Ni(Ii) And Co(Iii) Thiosemicarbazone Complexes As Potential Anticancer Agents, Jack Martin
Pitzer Senior Theses
The mechanics by which Reactive Oxygen Species work is an area of great interest given ROS’s wide range of biological applications. From cell signaling and mitochondrial regulation to pathogenesis and tumor cell death, varying concentrations of ROS in a system can lead to a whole host of positive and negative effects. In a similar vein, thiosemicarbazones are known to be equally useful for their myriad of antibacterial, antifungal, antiviral, and antitumoral effects. They have been at the core of the pharmaceutical world or the better part of the last century. The purpose of this work is to synthesize, characterize and …
Targeting Stat3 In Tnbc Drug Resistance, Madison A. Henry
Targeting Stat3 In Tnbc Drug Resistance, Madison A. Henry
Honors Theses and Capstones
Triple negative breast cancer (TNBC) is one of the most aggressive types of breast cancer and lacks the three commonly targeted receptors in breast cancer treatments. As a result of a lack of targetable receptors, the standard of care remains to be harsh chemotherapy treatments that often are successful in early TNBC cases but often result in relapsed TNBC. In addition to high rates of recurrence, TNBC is known for its aggressive metastasis and chemoresistance. Within TNBC, the transcription factor Signal Transducer and Activator of Transcription 3 (STAT3) is constitutively active and increases proliferation, and metastasis, and plays a role …