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Articles 31 - 51 of 51
Full-Text Articles in Cell Biology
A Mutation In The Mouse Chd2 Chromatin Remodeling Enzyme Results In A Complex Renal Phenotype, Concetta Marfella, Nils Henninger, Scott Leblanc, Namrata Krishnan, David Garlick, Lawrence Holzman, Anthony Imbalzano
A Mutation In The Mouse Chd2 Chromatin Remodeling Enzyme Results In A Complex Renal Phenotype, Concetta Marfella, Nils Henninger, Scott Leblanc, Namrata Krishnan, David Garlick, Lawrence Holzman, Anthony Imbalzano
Nils Henninger
BACKGROUND AND AIMS: Glomerular diseases are the third leading cause of kidney failure worldwide, behind only diabetes and hypertension. The molecular mechanisms underlying the cause of glomerular diseases are still largely unknown. The identification and characterization of new molecules associated with glomerular function should provide new insights into understanding the diverse group of glomerular diseases. The Chd2 protein belongs to a family of enzymes involved in ATP-dependent chromatin remodeling, suggesting that it likely functions as an epigenetic regulator of gene expression via the modification of chromatin structure. METHODS: In this study, we present a detailed histomorphologic characterization of mice containing …
Examining Phage Infection Utilizing Mycobacterium Smegmatis, Tanya L. Riddick
Examining Phage Infection Utilizing Mycobacterium Smegmatis, Tanya L. Riddick
Undergraduate Research
Bacteriophages, also known as phages, are viruses that are ubiquitous and survive and replicate within the host of the bacterial cell, Mycobacterium smegmatis. They are considered one of the most abundant organisms on earth (1031). Structurally, they are 100-200nm in size and consist of a protein encapsulated head that contains DNA or RNA, a tail sheath and tail fibers. This research consisted of examining phage infection, by re-isolating a novel phage, Tango. Tango was originally isolated genetically in 2013 by a previous ISBT student, Anna Maccarrone. The phage was sent to genetic sequencing but two phages were discovered, …
Effects Of Cannabidiol On Contractions And Calcium Signaling In Rat Ventricular Myocytes, Ramez M. Ali, Lina T. Al Kury, Keun-Hang Susan Yang, Anwar Qureshi, Mohanraj Rajesh, Sehamuddin Galadari, Yaroslav M. Shuba, Frank Christopher Howarth, Murat Oz
Effects Of Cannabidiol On Contractions And Calcium Signaling In Rat Ventricular Myocytes, Ramez M. Ali, Lina T. Al Kury, Keun-Hang Susan Yang, Anwar Qureshi, Mohanraj Rajesh, Sehamuddin Galadari, Yaroslav M. Shuba, Frank Christopher Howarth, Murat Oz
Mathematics, Physics, and Computer Science Faculty Articles and Research
Cannabidiol (CBD), a major nonpsychotropic cannabinoid found in Cannabis plant, has been shown to influence cardiovascular functions under various physiological and pathological conditions. In the present study, the effects of CBD on contractility and electrophysiological properties of rat ventricular myocytes were investigated. Video edge detection was used to measure myocyte shortening. Intracellular Ca2+ was measured in cells loaded with the Ca2+ sensitive fluorescent indicator fura-2 AM. Whole-cell patch clamp was used to measure action potential and Ca2+ currents. Radioligand binding was employed to study pharmacological characteristics of CBD binding. CBD (1 μM) caused a significant decrease in the amplitudes of …
Iron Alters Cell Survival In A Mitochondria-Dependent Pathway In Ovarian Cancer Cells., Edward Haller
Iron Alters Cell Survival In A Mitochondria-Dependent Pathway In Ovarian Cancer Cells., Edward Haller
Edward Haller
ABSTRACT The role of iron in the development of cancer remains unclear. We previously reported that iron reduces cell survival in a Ras/mitogen-activated protein kinase (MAPK)-dependent manner in ovarian cells; however, the underlying downstream pathway leading to reduced survival was unclear. Although levels of intracellular iron, ferritin/CD71 protein and reactive oxygen species did not correlate with iron-induced cell survival changes, we identified mitochondrial damage (via TEM) and reduced expression of outer mitochondrial membrane proteins (translocase of outer membrane: TOM20 and TOM70) in cell lines sensitive to iron. Interestingly, Ru360 (an inhibitor of the mitochondrial calcium uniporter) reversed mitochondrial changes and …
Targeting Cell Cycle Proteins In Breast Cancer Cells With Sirna By Using Lipid-Substituted Polyethylenimines, Manoj Parmar, Hamidreza Montazeri Aliabadi, Parvin Mahdipoor, Cezary Kucharski, Robert Maranchuk, Judith C. Hugh, Hasan Uludag
Targeting Cell Cycle Proteins In Breast Cancer Cells With Sirna By Using Lipid-Substituted Polyethylenimines, Manoj Parmar, Hamidreza Montazeri Aliabadi, Parvin Mahdipoor, Cezary Kucharski, Robert Maranchuk, Judith C. Hugh, Hasan Uludag
Pharmacy Faculty Articles and Research
The cell cycle proteins are key regulators of cell cycle progression whose de-regulation is one of the causes of breast cancer. RNA interference (RNAi) is an endogenous mechanism to regulate gene expression and it could serve as the basis of regulating aberrant proteins including cell cycle proteins. Since the delivery of small interfering RNA (siRNA) is a main barrier for implementation of RNAi therapy, we explored the potential of a non-viral delivery system, 2.0 kDa polyethylenimines substituted with linoleic acid and caprylic acid, for this purpose. Using a library of siRNAs against cell cycle proteins, we identified cell division cycle …
The Use Of Stem Cells In Burn Wound Healing: A Review, Fadi Ghieh, Rosalyn A. Jurjus, Amir Ibrahim, Alice Gerges Geagea, Hisham Daouk, Bassel El Baba, Sana Cham, Michel Matar, Wadih Zein, Abdo Jurjus
The Use Of Stem Cells In Burn Wound Healing: A Review, Fadi Ghieh, Rosalyn A. Jurjus, Amir Ibrahim, Alice Gerges Geagea, Hisham Daouk, Bassel El Baba, Sana Cham, Michel Matar, Wadih Zein, Abdo Jurjus
Anatomy and Regenerative Biology Faculty Publications
Burn wound healing involves a series of complex processes which are subject to intensive investigations to improve the outcomes, in particular, the healing time and the quality of the scar. Burn injuries, especially severe ones, are proving to have devastating effects on the affected patients. Stem cells have been recently applied in the field to promote superior healing of the wounds. Not only have stem cells been shown to promote better and faster healing of the burn wounds, but also they have decreased the inflammation levels with less scar progression and fibrosis. This review aims to highlight the beneficial therapeutic …
The Leishmania Years At Unl (Or, My Life As A Cell Biologist, 1966-1981), John J. Janovy Jr.
The Leishmania Years At Unl (Or, My Life As A Cell Biologist, 1966-1981), John J. Janovy Jr.
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Slides for a talk during which Professor Janovy discussed the methods he used in researching Leishmania during the years 1966-1981. Includes lists of references.
Adipocyte-Induced Inflammation In Prostate Tumor Progression In Bone: Role Of Cxcr2 And Osteopontin, Aimalie Lynnette Hardaway
Adipocyte-Induced Inflammation In Prostate Tumor Progression In Bone: Role Of Cxcr2 And Osteopontin, Aimalie Lynnette Hardaway
Wayne State University Dissertations
Abstract
Prostate cancer (PCa) is the second leading cause of cancer-related deaths among men. Evidence suggests that age and obesity, conditions associated with adipocyte accumulation in the bone marrow, are linked to increased risk of developing PCa and progressing to metastatic disease. Studies presented in this dissertation were based on the hypothesis that metastatic progression in bone is a result of a cooperative effort between bone marrow adipocytes, macrophages, osteoclasts, and PCa cells. We specifically focused on two adipocyte-supplied chemokines, CXCL1 and CXCL2, and bone marrow macrophage-secreted osteopontin as key drivers of pro-inflammatory environment in the bone marrow and important …
Characterization Of Calbindin Positive Interneurons Within The Ventral Horn Of The Mouse Spinal Cord, Taylor L. Floyd, David R. Ladle
Characterization Of Calbindin Positive Interneurons Within The Ventral Horn Of The Mouse Spinal Cord, Taylor L. Floyd, David R. Ladle
Symposium of Student Research, Scholarship, and Creative Activities Materials
Sensory-motor circuits in the spinal cord integrate sensory feedback from muscles and modulate locomotor behavior. Although we know how the sensory-motor system generally works, the main issue lies in identifying all neurons involved and understanding their interrelationships. Many interneurons contribute to sensory-motor circuits and have been well studied. For example, Renshaw cells (RC) are inhibitory interneurons that prevent motor neurons from over-activity. A distinguishing feature of RCs is that they are the only interneurons within the ventral-most region of the spinal cord expressing the calcium binding protein calbindin (CB). Recent studies have found other subpopulations of ventral horn interneurons outside …
Once Upon A Microscopic Slide: The Story Of Histology, Inaya Hussein, Mohamad Raad, Rawan Safa, Rosalyn A. Jurjus, Abdo Jurjus
Once Upon A Microscopic Slide: The Story Of Histology, Inaya Hussein, Mohamad Raad, Rawan Safa, Rosalyn A. Jurjus, Abdo Jurjus
Anatomy and Regenerative Biology Faculty Publications
For centuries, histology has maintained its remarkable place in the medical curriculum. However, its teaching has been influenced by the new technological advancement that has reshaped medicine teaching into a more modern student-friendly form. Since its inception in the 18th century, the discipline of histology has progressed hand in hand with the advancements in microscopy and microscopic technologies, including immunohistochemistry. In the traditional curriculum of USA medical schools, especially after the first Flexner’s report of 1910, histology was considered as very essential topic for a physician studying the “Art and Science” of medicine. In this era, the teaching relied more …
Effect Of Adjuvant And Neoadjuvant Anti-Telomerase With Anthracycline Based Chemotherapy On Triple Negative Breast Cancer Cells, Luke T. Pardy
Effect Of Adjuvant And Neoadjuvant Anti-Telomerase With Anthracycline Based Chemotherapy On Triple Negative Breast Cancer Cells, Luke T. Pardy
Student Summer Scholars Manuscripts
Breast cancer is the second leading cause of cancer related death in women in the US. In addition, 20% of all breast cancer cases in the U.S. are from the subtype known as Triple-Negative Breast Cancer (TNBC), which is the most aggressive and invasive form of the disease. This type of breast cancer has the worst prognosis, a decreased survival rate, and no targeted therapy. Over the decades, interest in pre- (Neoadjuvant) and post- (Adjuvant) chemotherapy treatments, in the management of TNBC has increased. Therefore, we evaluated the Adjuvant and Neoadjuvant effects of anti-telomerases (BIBR 1532 and GV6) with anthracycline-based …
Mach: A Model For Explaining Molecular And Cellular Mechanisms, Caleb M. Trujillo
Mach: A Model For Explaining Molecular And Cellular Mechanisms, Caleb M. Trujillo
Open Access Dissertations
Biologists use mechanistic explanations to understand behaviors of the immense complexity of molecular and cellular systems. In undergraduate biology courses, students are expected to explain molecular and cellular mechanisms, but teaching this skill presents many challenges due to the highly abstract, intangible nature of the cellular world, the influence of everyday language, and the tendency of students to overestimate how much they can explain. Therefore, across three studies this dissertation addresses these obstacles to teach undergraduate biology students to explain molecular and cellular mechanisms. ^ The first step was to model how biology experts explain molecular and cellular mechanisms, and …
The Role Of Mmp9 In Satellite Cell Activation After Increased Activity, Mike H.M.H. Pang, Jung A. Kim, Gary E. Mccall, Ryan S. Mehan, J-P Hyatt
The Role Of Mmp9 In Satellite Cell Activation After Increased Activity, Mike H.M.H. Pang, Jung A. Kim, Gary E. Mccall, Ryan S. Mehan, J-P Hyatt
Summer Research
The unique adaptive ability of skeletal muscle to meet functional demands is exemplified in its response to exercise. Though little is known about the molecular mechanisms that regulate this plasticity, the extracellular matrix (ECM) is believed to play a large role. The basal lamina is a specialized layer of ECM that lies in direct contact with the cell membrane of muscle fibers and facilitates environment-to-cell interactions. Matrix metalloproteinase-9 (MMP-9) is an enzyme in the basal lamina that regulates much of these adaptive processes. During exercise, the regenerative process of damaged tissue requires the activation of muscle-specific stem cells known as …
Human Anatomy And Physiology Preparatory Course (1st Edition), Carlos Liachovitzky
Human Anatomy And Physiology Preparatory Course (1st Edition), Carlos Liachovitzky
Open Educational Resources
The overall purpose of this preparatory course textbook is to help students familiarize with some terms and some basic concepts they will find later in the Human Anatomy and Physiology I course.
The organization and functioning of the human organism generally is discussed in terms of different levels of increasing complexity, from the smallest building blocks to the entire body. This Anatomy and Physiology preparatory course covers the foundations on the chemical level, and a basic introduction to cellular level, organ level, and organ system levels. There is also an introduction to homeostasis at the beginning.
The Significance Of Crispr/Cas9-Directed Cul3 Knockout On Human Colorectal Cancer Cells, Zoe A. Lautz
The Significance Of Crispr/Cas9-Directed Cul3 Knockout On Human Colorectal Cancer Cells, Zoe A. Lautz
Departmental Honors Projects
Cancer, the second leading cause of death in the US, is caused by mutations in select genes that alter cellular function leading to uncontrolled proliferation. Understanding the specific genes that drive cancer can lead to the generation of novel cancer therapies. To identify novel genes that drive cancer in the colon (CRC), lungs, and ovaries in mice, Starr et al. employed a transposon-based insertional mutagenesis system. One of the genes identified, APC, is mutated in 70-80% of human CRCs. CUL3, suspected to be a general driver gene, was discovered in the lung cancer screen. CUL3 was analyzed for its role …
Strategies For Preventing Age And Neurodegenerative Disease-Associated Mitochondrial Dysfunction, Vedad Delic
Strategies For Preventing Age And Neurodegenerative Disease-Associated Mitochondrial Dysfunction, Vedad Delic
USF Tampa Graduate Theses and Dissertations
Mitochondrial dysfunction plays a pivotal role in the development of aging phenotypes and aging-associated neurodegenerative disorders, such as Alzheimer’s disease (AD), Parkinson’s disease (PD) and Amyotrophic lateral sclerosis (ALS). Strategies that restore mitochondrial dysfunction may rescue the deficits of central metabolism in these disorders and improve cell survival. For example, we found that modulating the mTOR signaling pathway in a tissue culture model of aging-induced mitochondrial DNA mutation enhanced mitochondrial function as evidenced by increased oxygen consumption. Our previous melatonin studies also led us to hypothesize that caloric restriction and the hormone melatonin would reverse brain mitochondrial dysfunction in animal …
Ikaros Deficiency Leads To An Imbalance In Effector And Regulatory T Cell Homeostasis In Murine Pancreatic Cancer, Nadine D. Nelson
Ikaros Deficiency Leads To An Imbalance In Effector And Regulatory T Cell Homeostasis In Murine Pancreatic Cancer, Nadine D. Nelson
USF Tampa Graduate Theses and Dissertations
Pancreatic cancer is one of the deadliest cancers with a five-year survival rate of 6%. Pancreatic cancer is resistant to conventional chemotherapy and is usually diagnosed at late stages. Current treatment options have minimal effects in extending patients' lives beyond 10 months. One significant limitation in developing treatments to combat pancreatic cancer is its immunosuppressive microenvironment. Pancreatic cancer secretes factors that activate immunosuppressive cells, such as regulatory T cells (Tregs). These Tregs suppress effector CD4+ and CD8+ T cell anti-tumor immune responses. Therefore, novel treatment options to reduce Treg-mediated immune suppression and increase the numbers and functions of …
Gene Expression And Alzheimer's Disease: Evaluation Of Gene Expression Patterns In Brain And Blood For An Alzheimer's Disease Mouse Model, Amanda Hazy
Senior Honors Theses
Previous studies have established a causative role for altered gene expression in development of Alzheimer’s disease (AD). These changes can be affected by methylation and miRNA regulation. In this study, expression of miRNA known to change methylation status in AD was assessed by qPCR. Genome-wide expression changes were determined by RNA-sequencing of mRNA from hippocampus and blood of control and AD mice. The qPCR data showed significantly increased expression of Mir 17 in AD, and sequencing data revealed 230 genes in hippocampus, 58 genes in blood, and 8 overlapping genes showing significant differential expression (p value ≤ 0.05). Expression data …
Interaction Between Atm Kinase And P53 In Determining Glioma Radiosensitivity, Syed F. Ahmad
Interaction Between Atm Kinase And P53 In Determining Glioma Radiosensitivity, Syed F. Ahmad
Theses and Dissertations
Glioblastoma multiforme (GBM) is the most common primary brain tumor. Studies have shown that targeting the DNA damage response can sensitize cancer cells to DNA damaging agents. Ataxia telangiectasia mutated (ATM) is involved in signaling DNA double strand breaks. Our group has previously shown that ATM inhibitors (ATMi) sensitize GBM cells and tumors to ionizing radiation. This effect is greater when the tumor suppressor p53 is mutated.
The goals of this work include validation of a new ATM inhibitor, AZ32, and elucidation of how ATMi and p53 status interact to promote cell death after radiation. We propose that ATMi and …
Dopaminergic Signaling Within The Primary Cilia In The Renovascular System, Kimberly F. Atkinson, Samred H. Kathem, Xingjian Jin, Brian S. Muntean, Wissam A. Aboualaiwi, Andromeda M. Nauli, Surya M. Nauli
Dopaminergic Signaling Within The Primary Cilia In The Renovascular System, Kimberly F. Atkinson, Samred H. Kathem, Xingjian Jin, Brian S. Muntean, Wissam A. Aboualaiwi, Andromeda M. Nauli, Surya M. Nauli
Pharmacy Faculty Articles and Research
Activation of dopamine receptor type-5 (DR5) has been known to reduce systemic blood pressure, most likely by increasing renal vasodilation and enhancing natriuresis in the kidney. However, the mechanism of DR5 in natriuresis and vasodilation was not clearly known. We have previously shown that DR5 is localized to primary cilia of proximal renal epithelial and vascular endothelial cells. We here show that selective activation of DR5 specifically induces calcium influx only in the primary cilia, whereas non-selective activation of dopamine receptor induces calcium fluxes in both cilioplasm and cytoplasm. Cilia-independent signaling induced by thrombin only shows calcium signaling within cytoplasm. …
Human Umbilical Cord Blood-Derived Mononuclear Cells Improve Murine Ventricular Function Upon Intramyocardial Delivery In Right Ventricular Chronic Pressure Overload, Saji Oommen, Satsuki Yamada, Susana Cantero Peral, Katherine A. Campbell, Elizabeth S. Bruinsma, Andre Terzic, Timothy J. Nelson
Human Umbilical Cord Blood-Derived Mononuclear Cells Improve Murine Ventricular Function Upon Intramyocardial Delivery In Right Ventricular Chronic Pressure Overload, Saji Oommen, Satsuki Yamada, Susana Cantero Peral, Katherine A. Campbell, Elizabeth S. Bruinsma, Andre Terzic, Timothy J. Nelson
Katherine Campbell, PhD
No abstract provided.