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Articles 29011 - 29040 of 255945

Full-Text Articles in Life Sciences

Androgen Drives Melanoma Invasiveness And Metastatic Spread By Inducing Tumorigenic Fucosylation, Qian Liu Feb 2024

Androgen Drives Melanoma Invasiveness And Metastatic Spread By Inducing Tumorigenic Fucosylation, Qian Liu

USF Tampa Graduate Theses and Dissertations

Melanoma incidence and mortality rates are historically higher for men than women, with an estimated ~47% more new cases and twice the lethality in men in the US in 2023. Consistent with these discrepancies, emerging studies have highlighted the tumorigenic role of the male sex hormone androgen and its receptor (AR) in promoting melanoma aggressiveness. However, underlying cellular and molecular mechanisms and their precise pathological contributions are not well-defined. We recently discovered a sex-associated disparity in melanoma fucosylation, the post-translational modification of proteins with the dietary sugar L-fucose. Fucosylation, the conjugation of fucose moieties onto different glycan linkages on target …


Multiple Control Of Azoquinoline Based Molecular Photoswitches Feb 2024

Multiple Control Of Azoquinoline Based Molecular Photoswitches

Faculty, Staff and Student Publications

Multi-addressable molecular switches with high sophistication are creating intensive interest, but are challenging to control. Herein, we incorporated ring-chain dynamic covalent sites into azoquinoline scaffolds for the construction of multi-responsive and multi-state switching systems. The manipulation of ring-chain equilibrium by acid/base and dynamic covalent reactions with primary/secondary amines allowed the regulation of


Lichen Ecosystem Services And A Study From The Nj Pine Barrens, Gregory Turner Feb 2024

Lichen Ecosystem Services And A Study From The Nj Pine Barrens, Gregory Turner

Sustainability Research & Practice Seminar Presentations

Professor Greg Turner of the WCU Biology Department presents Lichen Ecosystem Services and a Study from the New Jersey Pine Barrens.


Toward A Coordinated Understanding Of Hydro-Biogeochemical Root Functions In Tropical Forests For Application In Vegetation Models, Daniela F. Cusack, Bradley Christoffersen, Chris M. Smith-Martin, Kelly M. Andersen, Amanda L. Cordeiro, Katrin Fleischer, S. Joseph Wright, Nathaly R. Guerrero-Ramírez, Laynara F. Lugli, Lindsay A. Mcculloch, Mareli Sanchez-Julia, Sarah A. Batterman, Caroline Dallstream, Claire Fortunel, Laura Toro, Lucia Fuchslueger, Michelle Y. Wong, Daniela Yaffar, Joshua B. Fisher, Marie Arnaud, Lee H. Dietterich, Shalom D. Addo-Danso, Oscar J. Valverde-Barrantes, Monique Weemstra, Jing Cheng Ng, Richard J. Norby Feb 2024

Toward A Coordinated Understanding Of Hydro-Biogeochemical Root Functions In Tropical Forests For Application In Vegetation Models, Daniela F. Cusack, Bradley Christoffersen, Chris M. Smith-Martin, Kelly M. Andersen, Amanda L. Cordeiro, Katrin Fleischer, S. Joseph Wright, Nathaly R. Guerrero-Ramírez, Laynara F. Lugli, Lindsay A. Mcculloch, Mareli Sanchez-Julia, Sarah A. Batterman, Caroline Dallstream, Claire Fortunel, Laura Toro, Lucia Fuchslueger, Michelle Y. Wong, Daniela Yaffar, Joshua B. Fisher, Marie Arnaud, Lee H. Dietterich, Shalom D. Addo-Danso, Oscar J. Valverde-Barrantes, Monique Weemstra, Jing Cheng Ng, Richard J. Norby

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Tropical forest root characteristics and resource acquisition strategies are underrepresented in vegetation and global models, hampering the prediction of forest–climate feedbacks for these carbon-rich ecosystems. Lowland tropical forests often have globally unique combinations of high taxonomic and functional biodiversity, rainfall seasonality, and strongly weathered infertile soils, giving rise to distinct patterns in root traits and functions compared with higher latitude ecosystems. We provide a roadmap for integrating recent advances in our understanding of tropical forest belowground function into vegetation models, focusing on water and nutrient acquisition. We offer comparisons of recent advances in empirical and model understanding of root characteristics …


Calibration Of Hybrid-Maize Model For Simulation Of Soil Moisture And Yield In Production Corn Fields, Anthony A. Amori, Olufemi P. Abimbola, Trenton E. Franz, Daran Rudnick, Javed Iqbal, Haishun Yang Feb 2024

Calibration Of Hybrid-Maize Model For Simulation Of Soil Moisture And Yield In Production Corn Fields, Anthony A. Amori, Olufemi P. Abimbola, Trenton E. Franz, Daran Rudnick, Javed Iqbal, Haishun Yang

Department of Agronomy and Horticulture: Faculty Publications

Model calibration is essential for acceptable model performance and applications. The Hybrid-Maize model, developed at the University of Nebraska-Lincoln, is a process-based crop simulation model that simulates maize growth as a function of crop and field management and environmental conditions. In this study, we calibrated and validated the Hybrid-Maize model using soil moisture and yield data from eight commercial production fields in two years. We used a new method for the calibration and multi-parameter optimization (MPO) based on kriging with modified criteria for selecting the parameter combinations. The soil moisture-related parameter combination (SM-PC3) improved simulations of soil water dynamics, but …


Applicability Of Using Bio-Receptive Concrete For Building Facades In Egypt, Gina Roupheil Feb 2024

Applicability Of Using Bio-Receptive Concrete For Building Facades In Egypt, Gina Roupheil

Theses and Dissertations

The significant increase in carbon dioxide emissions caused by the construction industry is detrimental to our planet. This is rapidly increasing with the urbanization of cities that is gradually taking its toll on the available green spaces, which help in balancing such emissions. Recently, researchers have been trying to make use of bio-receptivity to create biomaterial systems that could be spread on building envelopes and support the growth of small plant species and microorganisms to establish on. Out of those materials, comes the concrete as a promising material for bio-colonization.

Within this context, this study aims at investigating the applicability …


Integrative Genomic Insights Into Coral Resilience: Adaptive And Acclimatory Responses To Seasonal Environmental Shifts, Tasnim Ghanim Feb 2024

Integrative Genomic Insights Into Coral Resilience: Adaptive And Acclimatory Responses To Seasonal Environmental Shifts, Tasnim Ghanim

Theses and Dissertations

Coral reefs, critical to marine biodiversity and coastal protection, face escalating threats from climate change-related phenomena such as ocean warming. This warming is leading to widespread thermal stress that contributes to coral bleaching and infectious disease in corals, leading to the disruption of marine ecosystems and the economies that depend on them. Focusing on the brain coral Platygyra daedalea, known for its thermal resilience in the Persian Arabian Gulf—a region that exemplifies the extreme stressors of climate change—our study aims to dissect the genetic, transcriptomic, and microbiological underpinnings of coral survival in high-temperature environments predicted for the end of …


Resolution Of Respect: Conrad Alan Istock (1936–2023), Steven Hecht Orzack, Julia Bell, Judith Bronstein, William Etges, Shripad Tuljakpurkar Feb 2024

Resolution Of Respect: Conrad Alan Istock (1936–2023), Steven Hecht Orzack, Julia Bell, Judith Bronstein, William Etges, Shripad Tuljakpurkar

Biological Sciences Faculty Publications and Presentations

Conrad Istock was an important contributor to the emerging field of evolutionary ecology starting in the 1960s. His best-known work in this area blended theory and field and laboratory studies of pitcher-plant mosquitoes. Conrad died March 8, 2023, in Ithaca, New York, USA.


Comprehensive Characterization Of Ifnγ Signaling In Acute Myeloid Leukemia Reveals Prognostic And Therapeutic Strategies, Bofei Wang, Patrick K Reville, Mhd Yousuf Yassouf, Fatima Z Jelloul, Christopher Ly, Zhe Wang, Ivo Veletic, Enes Dasdemir, Jared K Burks, Guilin Tang, Shengnan Guo, Araceli Isabella Garza, Cedric Nasnas, Nicole R Vaughn, Natalia Baran, Qing Deng, Jairo Matthews, Preethi H Gunaratne, Dinler A Antunes, Suhendan Ekmekcioglu, Koji Sasaki, Miriam B Garcia, Branko Cuglievan, Dapeng Hao, Naval Daver, Michael R Green, Marina Konopleva, Andrew Futreal, Sean M Post, Hussein A Abbas Feb 2024

Comprehensive Characterization Of Ifnγ Signaling In Acute Myeloid Leukemia Reveals Prognostic And Therapeutic Strategies, Bofei Wang, Patrick K Reville, Mhd Yousuf Yassouf, Fatima Z Jelloul, Christopher Ly, Zhe Wang, Ivo Veletic, Enes Dasdemir, Jared K Burks, Guilin Tang, Shengnan Guo, Araceli Isabella Garza, Cedric Nasnas, Nicole R Vaughn, Natalia Baran, Qing Deng, Jairo Matthews, Preethi H Gunaratne, Dinler A Antunes, Suhendan Ekmekcioglu, Koji Sasaki, Miriam B Garcia, Branko Cuglievan, Dapeng Hao, Naval Daver, Michael R Green, Marina Konopleva, Andrew Futreal, Sean M Post, Hussein A Abbas

Faculty, Staff and Student Publications

Interferon gamma (IFNγ) is a critical cytokine known for its diverse roles in immune regulation, inflammation, and tumor surveillance. However, while IFNγ levels were elevated in sera of most newly diagnosed acute myeloid leukemia (AML) patients, its complex interplay in AML remains insufficiently understood. We aim to characterize these complex interactions through comprehensive bulk and single-cell approaches in bone marrow of newly diagnosed AML patients. We identify monocytic AML as having a unique microenvironment characterized by IFNγ producing T and NK cells, high IFNγ signaling, and immunosuppressive features. IFNγ signaling score strongly correlates with venetoclax resistance in primary AML patient …


Impact Of Electronic Cigarettes On Pediatric, Adolescent And Young Adult Leukemia Patients, Sanila Sarkar, Lea M Stitzlein, Joya Chandra Feb 2024

Impact Of Electronic Cigarettes On Pediatric, Adolescent And Young Adult Leukemia Patients, Sanila Sarkar, Lea M Stitzlein, Joya Chandra

Faculty, Staff and Student Publications

Electronic cigarettes, which deliver an aerosolized, nicotine-containing product upon inhalation, are a public health issue that continue to gain popularity among adolescents and young adults in the United States. Use of electronic cigarettes is wide, and extends to pediatric patients with multiple comorbidities, including childhood cancer, leaving them vulnerable to further negative health outcomes. Acute leukemias are the most common type of cancer in pediatric populations, and treatment outcomes for these patients are improving; consequently, there is an increased emphasis on the effect of behavioral lifestyle factors on quality of life in survivorship. The rate of electronic cigarette use is …


Paired Single-B-Cell Transcriptomics And Receptor Sequencing Reveal Activation States And Clonal Signatures That Characterize B Cells In Acute Myeloid Leukemia, Shengnan Guo, Gopi S Mohan, Bofei Wang, Tianhao Li, Naval Daver, Patrick K Reville, Hussein A Abbas Feb 2024

Paired Single-B-Cell Transcriptomics And Receptor Sequencing Reveal Activation States And Clonal Signatures That Characterize B Cells In Acute Myeloid Leukemia, Shengnan Guo, Gopi S Mohan, Bofei Wang, Tianhao Li, Naval Daver, Patrick K Reville, Hussein A Abbas

Faculty, Staff and Student Publications

BACKGROUND: Acute myeloid leukemia (AML) is associated with a dismal prognosis. Immune checkpoint blockade (ICB) to induce antitumor activity in AML patients has yielded mixed results. Despite the pivotal role of B cells in antitumor immunity, a comprehensive assessment of B lymphocytes within AML's immunological microenvironment along with their interaction with ICB remains rather constrained.

METHODS: We performed an extensive analysis that involved paired single-cell RNA and B-cell receptor (BCR) sequencing on 52 bone marrow aspirate samples. These samples included 6 from healthy bone marrow donors (normal), 24 from newly diagnosed AML patients (NewlyDx), and 22 from 8 relapsed or …


Iterative Patient Testing Of A Stimuli-Responsive Swallowing Activity Sensor To Promote Extended User Engagement During The First Year After Radiation: Multiphase Remote And In-Person Observational Cohort Study, Eileen H Shinn, Adam S Garden, Susan K Peterson, Dylan J Leupi, Minxing Chen, Laura Becerra, Julian Ramirez, Daniel Rodriquez, Finley Vanfossen, Sydney Zehner, Patrick P Mercier, Joseph Wang, Kate Hutcheson, Ehab Hanna, Darren J Lipomi Feb 2024

Iterative Patient Testing Of A Stimuli-Responsive Swallowing Activity Sensor To Promote Extended User Engagement During The First Year After Radiation: Multiphase Remote And In-Person Observational Cohort Study, Eileen H Shinn, Adam S Garden, Susan K Peterson, Dylan J Leupi, Minxing Chen, Laura Becerra, Julian Ramirez, Daniel Rodriquez, Finley Vanfossen, Sydney Zehner, Patrick P Mercier, Joseph Wang, Kate Hutcheson, Ehab Hanna, Darren J Lipomi

Faculty, Staff and Student Publications

BACKGROUND: Frequent sensor-assisted monitoring of changes in swallowing function may help improve detection of radiation-associated dysphagia before it becomes permanent. While our group has prototyped an epidermal strain/surface electromyography sensor that can detect minute changes in swallowing muscle movement, it is unknown whether patients with head and neck cancer would be willing to wear such a device at home after radiation for several months.

OBJECTIVE: We iteratively assessed patients' design preferences and perceived barriers to long-term use of the prototype sensor.

METHODS: In study 1 (questionnaire only), survivors of pharyngeal cancer who were 3-5 years post treatment and part of …


Experience With A Hybrid Recruitment Approach Of Patient-Facing Web Portal Screening And Subsequent Phone And Medical Record Review For A Neurosurgical Intervention Trial For Chronic Ischemic Stroke Disability (Pisces Iii), Brad J Kolls, Keith W Muir, Sean I Savitz, Lawrence R Wechsler, Julie G Pilitsis, Richard L Beckman, Peng R Chen, David S Albers, Daniel T Laskowitz Feb 2024

Experience With A Hybrid Recruitment Approach Of Patient-Facing Web Portal Screening And Subsequent Phone And Medical Record Review For A Neurosurgical Intervention Trial For Chronic Ischemic Stroke Disability (Pisces Iii), Brad J Kolls, Keith W Muir, Sean I Savitz, Lawrence R Wechsler, Julie G Pilitsis, Richard L Beckman, Peng R Chen, David S Albers, Daniel T Laskowitz

Faculty, Staff and Student Publications

BACKGROUND: Recruitment of participants is the greatest risk to completion of most clinical trials, with 20-40% of trials failing to reach the targeted enrollment. This is particularly true of trials of central nervous system (CNS) therapies such as intervention for chronic stroke. The PISCES III trial was an invasive trial of stereotactically guided intracerebral injection of CTX0E03, a fetal derived neural stem cell line, in patients with chronic disability due to ischemic stroke. We report on the experience using a novel hybrid recruitment approach of a patient-facing portal to self-identify and perform an initial screen for general trial eligibility (tier …


Maximal Resistance Training In The Treatment Of Anorexia Nervosa – A Case Report Series, Darren R. Healy, Nicole Mansson, Mia Furu, Solfrid Bratland-Sanda, Jan Magnus Sjögren Feb 2024

Maximal Resistance Training In The Treatment Of Anorexia Nervosa – A Case Report Series, Darren R. Healy, Nicole Mansson, Mia Furu, Solfrid Bratland-Sanda, Jan Magnus Sjögren

International Journal of Exercise Science

International Journal of Exercise Science 17(3): 308-326, 2024. Objective: Anorexia Nervosa (AN) has one of the highest mortality rates of all mental health disorders, low recovery rate and is associated with widespread endocrine dysfunction. Resistance training (RT) has been consistently shown to provide beneficial effects on health outcomes that are often negatively affected by AN, however participation in exercise is controversial for individuals with AN. The objective of this study was to assess the effects of maximal RT as an add-on to standard of care in patients with AN. Methods: Originally, a controlled clinical trial was planned but due to …


Strengthening First Responders’ Coaching Proficiency Through A Peer Fitness Leader Workshop: A Preliminary Efficacy Trial, Sarah N. Lanham, Thomas R. Nagel, Haresh Rochani, Bridget F. Melton, Richard E. Cleveland Feb 2024

Strengthening First Responders’ Coaching Proficiency Through A Peer Fitness Leader Workshop: A Preliminary Efficacy Trial, Sarah N. Lanham, Thomas R. Nagel, Haresh Rochani, Bridget F. Melton, Richard E. Cleveland

International Journal of Exercise Science

International Journal of Exercise Science 17(3): 298-307, 2024. First responders require physical fitness to perform dangerous tasks in unpredictable environments. To promote physical fitness among first responders, many agencies use a peer fitness leader (PFL) approach; however, resources for the fitness, wellness, and health of PFLs are often minimal. This study’s purpose was to investigate the effectiveness of a training workshop to increase PFL’s training knowledge and coaching comfort (CC). Thirty-six PFLs (Experience: 14.6 ± 9.1 yrs; Age: 41.0 ± 9.8 yrs; BMI: 28.9 ± 7.0 kg·m-2) attended a one-day workshop. Paired samples t-tests assessed for differences …


3-Chloropropylbis(Catecholato)Silicate As A Bifunctional Reagent For The One-Pot Synthesis Of Tetrahydroquinolines From O-Bromosulfonamides, Noah Brodsky, Nidheesh Phadnis, Mohamed Ibrahim, Isabel M. Andino, Inés Blanc Giro, John A. Milligan Feb 2024

3-Chloropropylbis(Catecholato)Silicate As A Bifunctional Reagent For The One-Pot Synthesis Of Tetrahydroquinolines From O-Bromosulfonamides, Noah Brodsky, Nidheesh Phadnis, Mohamed Ibrahim, Isabel M. Andino, Inés Blanc Giro, John A. Milligan

College of Life Sciences Faculty Papers

Bis(catecholato)silicate salts are easily accessible reagents that can be used to install alkyl fragments through photoredox-enabled cross-coupling. These reagents can incorporate various functional groups including pendant alkyl halides. A halogenated organosilicate reagent was leveraged to develop a one-pot synthesis of tetrahydroquinolines from o-bromosulfonamides, where the bifunctional reagent participates in a nickel/photoredox cross-coupling followed by intramolecular nucleophilic substitution. The functional group tolerance of this cross-coupling strategy allowed for the preparation of a series of substituted tetrahydroquinolines.


Proteomic Dataset For Decellularization Of Porcine Auricular Cartilage, Roxanne N. Stone, Xinzhu Pu, Julia Thom Oxford Feb 2024

Proteomic Dataset For Decellularization Of Porcine Auricular Cartilage, Roxanne N. Stone, Xinzhu Pu, Julia Thom Oxford

Biology Faculty Publications and Presentations

Objectives Osteoarthritis (OA) is a major concern in the United States and worldwide. Development and validation of robust decellularization techniques is critical in generating suitable bioscaffolds for future OA treatment options.

Data descriptions In the present study, proteins from porcine auricular cartilage before and after decellularization were extracted, digested, and identified using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The data represents protein profiles of both non-decellularized and decellularized porcine auricular cartilage. This data is intended to be useful to scientists who are interesting in generating biomaterials for potential relevant clinical applications using decellularized cartilage tissue.


A Test Of The Gleaner–Opportunist Trade-Off Among Photosynthetic Traits In Cryptophyte Algae, Jake A. Swanson, Matthew J. Greenwold, Tammi L. Richardson, Jeffry L. Dudycha Feb 2024

A Test Of The Gleaner–Opportunist Trade-Off Among Photosynthetic Traits In Cryptophyte Algae, Jake A. Swanson, Matthew J. Greenwold, Tammi L. Richardson, Jeffry L. Dudycha

Biology Faculty Publications and Presentations

As photosynthetic producers, phytoplankton form the foundation of aquaticfood webs. Understanding the relationships among photosynthetic traits inphytoplankton is essential to revealing how diversification of these traitsallows phytoplankton to harvest energy from different light environments. Weinvestigated whether the diversification of 15 species of cryptophytes, a phy-lum of phytoplankton with diverse light-capturing pigments, showed evidenceof trade-offs among photosynthetic performance traits as predicted by the gleaner-opportunist resource exploitation framework. We constructed photo-synthesis versus irradiance (P–E) curves and rapid light curves (RLCs) to estimate parameters characterizing photosynthetic performance and electrontransport rate. We inferred the evolutionary relationships among the 15 specieswith ultraconserved genomic elements and …


Unraveling Frontiers In Poultry Health (Part 1) – Mitigating Economically Important Viral And Bacterial Diseases In Commercial Chicken And Turkey Production, Yowande O. Fasina, David L. Suarez, George D. Ritter, Elise C. Griffen, Yahua Z. Farnell, Ross Wolfenden, Billy M. Hargis Feb 2024

Unraveling Frontiers In Poultry Health (Part 1) – Mitigating Economically Important Viral And Bacterial Diseases In Commercial Chicken And Turkey Production, Yowande O. Fasina, David L. Suarez, George D. Ritter, Elise C. Griffen, Yahua Z. Farnell, Ross Wolfenden, Billy M. Hargis

Poultry Science Faculty Publications and Presentations

This symposium offered up-to-date perspectives on field experiences and the latest research on significant viral and bacterial diseases affecting poultry. A highlight was the discussion on the use of enteroids as advanced in vitro models for exploring disease pathogenesis. Outcomes of this symposium included identifying the urgent need to improve the prevention and control of avian influenza by focusing research on vaccine effectiveness. In this regard, efforts should focus on enhancing the relatedness of vaccine antigen to the field (challenge) virus strain and improving immunogenicity. It was also revealed that gangrenous dermatitis could be controlled through withholding or restricting the …


Divergent Proteomic Profiles Of Opium Poppy Cultivars, Setenay Aykanat, Mine Türktaş Feb 2024

Divergent Proteomic Profiles Of Opium Poppy Cultivars, Setenay Aykanat, Mine Türktaş

Turkish Journal of Biology

We examined the proteomic profiles of three registered opium poppy cultivars (Papaver somniferum L.) having different alkaloid contents. The study was conducted on both the stem and capsule organs. A high number of differentially expressed proteins (DEPs) were identified between the cultivars and the organs. We analyzed DEPs for their contribution in GO terms and KEGG pathways. The up-regulated DEPs were significantly enriched in photosynthesis and translation, for morphine-rich and noscapine-rich cultivars, respectively. The data depicted that photosynthesis is crucial for Benzylisoquinoline alkaloid (BIA) biosynthesis, but different processes are also effective on morphine and noscapine biosynthesis, which occur at different …


Tnfr1 Signaling Is Positively Regulated By Jak-2 And C-Src Via Tyrosine Phosphorylation, Fatma Zehra Hapi̇l Zevkli̇ler, Fatma Ece Çopuroğlu, Mustafa Gökhan Ertosun, Ufuk Mert, Derya Özeş, Osman Nidai Özeş Feb 2024

Tnfr1 Signaling Is Positively Regulated By Jak-2 And C-Src Via Tyrosine Phosphorylation, Fatma Zehra Hapi̇l Zevkli̇ler, Fatma Ece Çopuroğlu, Mustafa Gökhan Ertosun, Ufuk Mert, Derya Özeş, Osman Nidai Özeş

Turkish Journal of Biology

Background/aim: Tumor necrosis factor alpha (TNFα, a.k.a. TNF) is a pleiotropic cytokine that exerts most of its effects through type 1 TNF receptor (TNFR1). Following TNF binding, TNFR1 recruits TRADD (tumor necrosis factor receptor type 1-associated DEATH domain). This interaction triggers formation of signalosome complexes which have been claimed to induce apoptosis (via downstream caspase activations), inflammation (via NF-kappaB) and stress pathways (JNK & p38). However, the mechanism underlying TNF-induced ERK and AKT activation is not completely revealed. TNFR1 is known to constitutively bind c-Src and JAK2, and these enzymes were previously demonstrated to modulate TNF signaling. Therefore, we hypothesized …


Prognostic Gene Biomarkers For C-Src Inhibitor Si162 Sensitivity In Melanoma Cells, Seyhan Türk, Ayşegül Yilmaz, Ümit Yavuz Malkan, Gülberk Uçar, Can Türk Feb 2024

Prognostic Gene Biomarkers For C-Src Inhibitor Si162 Sensitivity In Melanoma Cells, Seyhan Türk, Ayşegül Yilmaz, Ümit Yavuz Malkan, Gülberk Uçar, Can Türk

Turkish Journal of Biology

Background/aim: Early detection and treatment are crucial in combating malignant melanoma. Src is an important therapeutic target in melanoma due to its association with cancer progression. However, developing effective Src-targeting drugs remains challenging and personalized medicine relies on biomarkers and targeted therapies for precise and effective treatment. This study focuses on Si162, a newly synthesized c-Src inhibitor, to identify reliable biomarkers for predicting Si162 sensitivity and explore associated biological characteristics and pathways in melanoma cells. Materials and methods: Primary melanoma cells (M1, M21, M24, M84, M133, M307, and M2025) were obtained from patients diagnosed with melanoma. Si162 cytotoxicity tests were …


Expression Patterns Of M6a Rna Methylation Regulators Under Apoptotic Conditions In Various Human Cancer Cell Lines, Azime Akçaöz Alasar, Buket Sağlam, İpek Erdoğan Vatansever, Bünyamin Akgül Feb 2024

Expression Patterns Of M6a Rna Methylation Regulators Under Apoptotic Conditions In Various Human Cancer Cell Lines, Azime Akçaöz Alasar, Buket Sağlam, İpek Erdoğan Vatansever, Bünyamin Akgül

Turkish Journal of Biology

Background/aim: Cancer is a complex disease that involves both genetic and epigenetic factors. While emerging evidence clearly suggests that changes in epitranscriptomics play a crucial role in cancer pathogenesis, a comprehensive understanding of the writers, erasers, and readers of epitranscriptomic processes, particularly under apoptotic conditions remains lacking. The aim of this study was to uncover the changes in the expression of m6A RNA modifiers under apoptotic conditions across various cancer cell lines. Materials and methods: Initially, we quantified the abundance of m6A RNA modifiers in cervix (HeLa and ME180), breast (MCF7 and MDA-MB-231), lung (A549 and H1299), and colon (CaCo2 …


Theranostic Potential Of A Novel Aptamer Specifically Targeting Her2 In Breast Cancer Cells, Fulya Küçükcankurt, Samet Uçak, Nedret Altiok Feb 2024

Theranostic Potential Of A Novel Aptamer Specifically Targeting Her2 In Breast Cancer Cells, Fulya Küçükcankurt, Samet Uçak, Nedret Altiok

Turkish Journal of Biology

Background/aim: The overexpression of HER2 is correlated with poorer outcomes and therapeutic resistance in breast cancer patients. While HER2-targeted therapies have shown improvement, prognosis remains poor for HER2-positive breast cancer patients, and these treatments have limitations. Therefore, it is crucial to explore effective molecular strategies for early detection and treatment of HER2-positive breast cancers. Materials and methods: In this study, we employed the cell-SELEX method to generate a selective aptamer capable of recognizing HER2 in its native conformation within breast cancer cells, for theranostic applications. Utilizing an adherent cell-SELEX approach, we developed and explored a DNA aptamer, named HMAP7, which …


Circrna Ldlr Promotes Proliferation And Aerobic Glycolysis Of Gastric Cancer Cells By Targeting Chd1 With Mir-449b-5p, Fanye Zeng, Juntao Zhao, Mengting Tong, Wenting He, Nan Li, Yuxiang Fan, Yanhua Zhu, Liping Zhang, Hongliang Zhang Feb 2024

Circrna Ldlr Promotes Proliferation And Aerobic Glycolysis Of Gastric Cancer Cells By Targeting Chd1 With Mir-449b-5p, Fanye Zeng, Juntao Zhao, Mengting Tong, Wenting He, Nan Li, Yuxiang Fan, Yanhua Zhu, Liping Zhang, Hongliang Zhang

Turkish Journal of Biology

Background/aim: Circular RNAs can serve as detection biomarkers and therapeutic targets for tumors. Our study aimed to elucidate the mechanisms associated with circRNA LDLR (circLDLR) in gastric cancer (GC) proliferation and aerobic glycolysis. Materials and methods: Expression signatures of circLDLR, miR-449b-5p, and CHD1 were examined in GC samples using quantitative PCR. Proliferation ability of MKN-45 cells was assessed via CCK-8 and EdU assays, and cell apoptosis was measured by flow cytometry. Glucose uptake, lactate production, ATP/ADP ratios, and NAD+/NADH ratios in cell supernatants were quantified to evaluate aerobic glycolysis. Subcellular isolation assay, quantitative PCR, immunoblot analysis, RNA immunoprecipitation (RIP), and …


Beneficial Effects Of A Novel Polyherbal Formulation On The Skeletal Muscle Antioxidant Status, Inflammation, And Muscle-Signaling Proteins In Exercised Rats, Mehmet Tuzcu, Oğuzhan Özdemi̇r, Cemal Orhan, Nurhan Şahi̇n, Abhijeet Morde, Muralidhara Padigaru, Prakash Bhanuse, Kazım Şahi̇n Feb 2024

Beneficial Effects Of A Novel Polyherbal Formulation On The Skeletal Muscle Antioxidant Status, Inflammation, And Muscle-Signaling Proteins In Exercised Rats, Mehmet Tuzcu, Oğuzhan Özdemi̇r, Cemal Orhan, Nurhan Şahi̇n, Abhijeet Morde, Muralidhara Padigaru, Prakash Bhanuse, Kazım Şahi̇n

Turkish Journal of Biology

Background/aim: Exhausting exercise can damage muscle tissue due to free radical interactions. It is hypothesized that the increase in free radicals following muscle injury, either due to oxidative damage to biomolecules or the activation of inflammatory cytokines, may lead to secondary muscle damage. This study investigated the effects of a novel joint health formula (JHF) containing bisdemethoxycurcumin-enriched curcumin, 3-O-Acetyl-11-keto-beta-boswellic acid-enriched Boswellia (AKBA), and Ashwagandha on exhaustion time, grip strength, antioxidant status, and muscle-signaling proteins in exhaustively exercised rats. Materials and methods: Twenty-eight rats were divided into four groups: Control (C), exercise (E), E + JHF 100 (100 mg/kg), and E …


Effect Of Thymol On Oxidative Stress And Reelin Signaling Pathway In Alzheimer's Disease Model, Barış Bi̇tmez, Burcu Çevreli̇, Emel Kaşikçi Feb 2024

Effect Of Thymol On Oxidative Stress And Reelin Signaling Pathway In Alzheimer's Disease Model, Barış Bi̇tmez, Burcu Çevreli̇, Emel Kaşikçi

Turkish Journal of Biology

Background/aim: The purpose of this study was to investigate how thymol affects cognitive functions and the levels of MDA, GSH, Aβ1-42, ApoE, reelin, and LRP8 in an AD model induced in male Wistar albino rats with the application of D-galactose (D-gal) and aluminum chloride (AlCl3). Materials and methods: In this work, 3-month-old male Wistar albino rats were used. Group 1 served as the Control, Group 2 received 0.5 mL/day saline + 0.5 mL/day sunflower oil, Group 3 was administered 200 mg/kg/day AlCl3 + 60 mg/kg/day D-gal, Group 4 received 30 mg/kg/day thymol, and Group 5 was administered 200 mg/kg/day AlCl3 …


A Global Database Of Dissolved Organic Matter (Dom) Concentration Measurements In Coastal Waters (Coastdom V1), Christian Lønborg, Cátia Carreira, Gwenaël Abril, Susana Agustí, Valentina Amaral, Agneta Andersson, Javier Arístegui, Punyasloke Bhadury, Mariana B. Bif, Alberto V. Borges, Steven Bouillon, Maria L. I. Calleja, Luiz C. Cotovicz, Stefano Cozzi, Maryló Doval, Carlos M. Duarte, Bradley Eyre, Cédric G. Fichot, E. Elena García-Martín, Alexandra Garzon-Garcia, Michele Giani, Rafael Gonçalves-Araujo, Renee Gruber, Dennis A. Hansell, Fuminori Hashihama, Ding He, Johnna M. Holding, William R. Hunter, J. Severino P. Ibánhez, Valeria Ibello, Shan Jiang, Guebuem Kim, Katja Klun, Piotr Kowalczuk, Atsushi Kubo, Choon-Weng Lee, Cláudia B. Lopes, Federica Maggioni, Paolo Magni, Celia Marrase, Patrick Martin, S. Leigh Mccallister, Roisin Mccallum, Patricia M. Medeiros, Xosé A. G. Morán, Frank E. Muller-Karger, Allison Myers-Pigg, Marit Norli, Joanne M. Oakes, Helena Osterholz, Hyekyung Park, Maria L. Paulsen, Judith A. Rosentreter, Jeff D. Ross, Digna Rueda-Roa, Chiara Santinelli, Yuan Shen, Eva Teira, Tinkara Tinta, Guenther Uher, Masahide Wakita, Nicholas Ward, Kenta Watanabe, Yu Xin, Youhei Yamashita, Liyang Yang, Jacob Yeo, Huamao Yuan, Qiang Zheng, Xosé A. Álvarez-Salgado Feb 2024

A Global Database Of Dissolved Organic Matter (Dom) Concentration Measurements In Coastal Waters (Coastdom V1), Christian Lønborg, Cátia Carreira, Gwenaël Abril, Susana Agustí, Valentina Amaral, Agneta Andersson, Javier Arístegui, Punyasloke Bhadury, Mariana B. Bif, Alberto V. Borges, Steven Bouillon, Maria L. I. Calleja, Luiz C. Cotovicz, Stefano Cozzi, Maryló Doval, Carlos M. Duarte, Bradley Eyre, Cédric G. Fichot, E. Elena García-Martín, Alexandra Garzon-Garcia, Michele Giani, Rafael Gonçalves-Araujo, Renee Gruber, Dennis A. Hansell, Fuminori Hashihama, Ding He, Johnna M. Holding, William R. Hunter, J. Severino P. Ibánhez, Valeria Ibello, Shan Jiang, Guebuem Kim, Katja Klun, Piotr Kowalczuk, Atsushi Kubo, Choon-Weng Lee, Cláudia B. Lopes, Federica Maggioni, Paolo Magni, Celia Marrase, Patrick Martin, S. Leigh Mccallister, Roisin Mccallum, Patricia M. Medeiros, Xosé A. G. Morán, Frank E. Muller-Karger, Allison Myers-Pigg, Marit Norli, Joanne M. Oakes, Helena Osterholz, Hyekyung Park, Maria L. Paulsen, Judith A. Rosentreter, Jeff D. Ross, Digna Rueda-Roa, Chiara Santinelli, Yuan Shen, Eva Teira, Tinkara Tinta, Guenther Uher, Masahide Wakita, Nicholas Ward, Kenta Watanabe, Yu Xin, Youhei Yamashita, Liyang Yang, Jacob Yeo, Huamao Yuan, Qiang Zheng, Xosé A. Álvarez-Salgado

Research outputs 2022 to 2026

Measurements of dissolved organic carbon (DOC), nitrogen (DON), and phosphorus (DOP) concentrations are used to characterize the dissolved organic matter (DOM) pool and are important components of biogeochemical cycling in the coastal ocean. Here, we present the first edition of a global database (CoastDOM v1; available at 10.1594/PANGAEA.964012, Lonborg et al., 2023) compiling previously published and unpublished measurements of DOC, DON, and DOP in coastal waters. These data are complemented by hydrographic data such as temperature and salinity and, to the extent possible, other biogeochemical variables (e.g. chlorophyll a, inorganic nutrients) and the inorganic carbon system (e.g. dissolved inorganic carbon …


Rbpms Regulates Cardiomyocyte Contraction And Cardiac Function Through Rna Alternative Splicing, Wei Tan, Hui Li, Rhonda Bassel-Duby, Ning Liu, Eric N Olson Feb 2024

Rbpms Regulates Cardiomyocyte Contraction And Cardiac Function Through Rna Alternative Splicing, Wei Tan, Hui Li, Rhonda Bassel-Duby, Ning Liu, Eric N Olson

Faculty, Staff and Student Publications

Aims: RNA binding proteins play essential roles in mediating RNA splicing and are key post-transcriptional regulators in the heart. Our recent study demonstrated that RBPMS (RNA binding protein with multiple splicing) is crucial for cardiac development through modulating mRNA splicing, but little is known about its functions in the adult heart. In this study, we aim to characterize the post-natal cardiac function of Rbpms and its mechanism of action.

Methods and results: We generated a cardiac-specific knockout mouse line and found that cardiac-specific loss of Rbpms caused severe cardiomyocyte contractile defects, leading to dilated cardiomyopathy and early lethality in adult …


Camel Dung-Derived Biochar For The Removal Of Copper(Ii) And Chromium(Iii) Ions From Aqueous Solutions: Adsorption And Kinetics Studies, Kenesha Wilson, Jibran Iqbal, Amira Obaid Abdalla Obaid Hableel, Zainab Naji Khalaf Beyaha Alzaabi, Yousef Nazzal Feb 2024

Camel Dung-Derived Biochar For The Removal Of Copper(Ii) And Chromium(Iii) Ions From Aqueous Solutions: Adsorption And Kinetics Studies, Kenesha Wilson, Jibran Iqbal, Amira Obaid Abdalla Obaid Hableel, Zainab Naji Khalaf Beyaha Alzaabi, Yousef Nazzal

All Works

This study explores an innovative approach to tackle the critical issue of heavy metal ion contamination in aqueous solutions through the utilization of camel dung-derived biochar. In the context of global environmental concerns and the adverse impacts of heavy metal pollution on ecosystems and human health, the investigation focuses on copper(II) and chromium(III) ions, which are among the most pervasive pollutants originating from industrial activities. The research revealed that camel dung-derived biochar exhibits exceptional potential for the removal of copper(II) and chromium(III) ions, with removal efficiencies of more than 90% and adsorption capacities of 23.20 and 23.36 mg/g, respectively. The …