Digital Commons Network^™

Diabetes Mellitus And Immunomodulation: A Double-Edged Sword., James Harte

International Undergraduate Journal of Health Sciences

Diabetes is an endocrinological disorder characterised by chronic hyperglycaemia due to abnormalities in insulin secretion, insulin action or a combination of both. According to the International Diabetes Federation, 463 million people worldwide are living with diabetes; 700 million people will be affected by 2045. The severity of the disease is dependent on the type and the stage of progression; when not correctly managed, diabetes can lead to potentially life-threatening micro- and macrovascular complications.

Prior to the discovery of insulin in 1922, the life expectancy of children with diabetes was short and the prognosis was very poor. The advocated treatment for …

Coagulopathy In Covid-19: A Review, Shannon Ginty

International Undergraduate Journal of Health Sciences

Recent data has demonstrated that the pathophysiology of severe COVID-19 infection is associated with a significant pulmonary coagulopathy. Thrombotic complications have been reported in approximately 35-45% of patients with severe COVID-19. Entry of SARS-CoV-2 into the host cells leads to dysregulation in inflammatory signalling pathways, disrupting the normal coagulation mechanism. The hypercoagulability with abnormal clot formation is attributed to the inappropriately elevated immune response, culminating in a ‘cytokine storm’ with high levels of pro-inflammatory cytokines and subsequent thrombosis. The coagulopathy in COVID-19 affects many coagulation parameters such as D-dimer levels, fibrinogen levels, platelet count and prothrombin time. Coagulation parameters must …

Full Issue: The International Undergraduate Journal Of Health Sciences, Volume 1, Issue 1, June 2021, Iujhs Full Issue

International Undergraduate Journal of Health Sciences

The full June 2021 issue (Volume 1, Issue 1) of the International Undergraduate Journal of Health Sciences

Attenuated Strain Of Cvb3 With A Mutation In The Car‑Interacting Region Protects Against Both Myocarditis And Pancreatitis, Ninaad Lasrado, Arunakumar Gangaplara, Chandirasegaran Massilamany, Rajkumar Arumugam, Allison Shelbourn, Mahima T. Rasquinha, Rakesh H. Basavalingappa, Gustavo Delhon, Shi-Hua Xiang, Asit K. Pattnaik, David Steffen, Jay Reddy

School of Veterinary and Biomedical Sciences: Faculty Publications

Coxsackievirus B3 (CVB3), is commonly implicated in myocarditis, which can lead to dilated cardiomyopathy, in addition to causing acute pancreatitis and meningitis. Yet, no vaccines are currently available to prevent this infection. Here, we describe the derivation of a live attenuated vaccine virus, termed mutant (Mt) 10, encoding a single amino acid substitution H790A within the viral protein 1, that prevents CVB3 infection in mice and protects from both myocarditis and pancreatitis in challenge studies. We noted that animals vaccinated with Mt 10 developed virus neutralizing antibodies, predominantly containing IgG2a and IgG2b, and to a lesser extent IgG3 and IgG1. …

Q134r: Small Chemical Compound With Nfat Inhibitory Properties Improves Behavioral Performance And Synapse Function In Mouse Models Of Amyloid Pathology, Pradoldej Sompol, Jenna L. Gollihue, Susan D. Kraner, Irina A. Artiushin, Ryan A. Cloyd, Emad Chishti, Shon A. Koren, Grant K. Nation, Jose F. Abisambra, Orsolya Huzian, Lajos I. Nagy, Miklos Santha, Laszlo Hackler Jr., Laszlo G. Puskas, Christopher M. Norris

Sanders-Brown Center on Aging Faculty Publications

Inhibition of the protein phosphatase calcineurin (CN) ameliorates pathophysiologic and cognitive changes in aging rodents and mice with aging-related Alzheimer's disease (AD)-like pathology. However, concerns over adverse effects have slowed the transition of common CN-inhibiting drugs to the clinic for the treatment of AD and AD-related disorders. Targeting substrates of CN, like the nuclear factor of activated T cells (NFATs), has been suggested as an alternative, safer approach to CN inhibitors. However, small chemical inhibitors of NFATs have only rarely been described. Here, we investigate a newly developed neuroprotective hydroxyquinoline derivative (Q134R) that suppresses NFAT signaling, without inhibiting CN activity. …

Polθ Reverse Transcribes Rna And Promotes Rna-Templated Dna Repair, Gurushankar Chandramouly, Jiemin Zhao, Shane Mcdevitt, Timur Rusanov, Trung Hoang, Nikita Borisonnik, Taylor Treddinick, Felicia Wednesday Lopezcolorado, Tatiana Kent, Labiba Siddique, Joseph Mallon, Jacklyn Huhn, Zainab Shoda, Ekaterina Kashkina, Alessandra Brambati, Jeremy M Stark, Xiaojiang S Chen, Richard Pomerantz

Department of Biochemistry and Molecular Biology Faculty Papers

Genome-embedded ribonucleotides arrest replicative DNA polymerases (Pols) and cause DNA breaks. Whether mammalian DNA repair Pols efficiently use template ribonucleotides and promote RNA-templated DNA repair synthesis remains unknown. We find that human Polθ reverse transcribes RNA, similar to retroviral reverse transcriptases (RTs). Polθ exhibits a significantly higher velocity and fidelity of deoxyribonucleotide incorporation on RNA versus DNA. The 3.2-Å crystal structure of Polθ on a DNA/RNA primer-template with bound deoxyribonucleotide reveals that the enzyme undergoes a major structural transformation within the thumb subdomain to accommodate A-form DNA/RNA and forms multiple hydrogen bonds with template ribose 2'-hydroxyl groups like retroviral RTs. …

Immune Cells In Lens Injury Repair And Fibrosis, Janice L Walker, A. Sue Menko

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Immune cells, both tissue resident immune cells and those immune cells recruited in response to wounding or degenerative conditions, are essential to both the maintenance and restoration of homeostasis in most tissues. These cells are typically provided to tissues by their closely associated vasculatures. However, the lens, like many of the tissues in the eye, are considered immune privileged sites because they have no associated vasculature. Such absence of immune cells was thought to protect the lens from inflammatory responses that would bring with them the danger of causing vision impairing opacities. However, it has now been shown, as occurs …

Targeting The Apoa1 Locus For Liver-Directed Gene Therapy, Marco De Giorgi, Ang Li, Ayrea Hurley, Mercedes Barzi, Alexandria M Doerfler, Nikitha A Cherayil, Harrison E Smith, Jonathan D Brown, Charles Y Lin, Karl-Dimiter Bissig, Gang Bao, William R Lagor

Faculty, Staff and Students Publications

Clinical application of somatic genome editing requires therapeutics that are generalizable to a broad range of patients. Targeted insertion of promoterless transgenes can ensure that edits are permanent and broadly applicable while minimizing risks of off-target integration. In the liver, the Albumin (Alb) locus is currently the only well-characterized site for promoterless transgene insertion. Here, we target the Apoa1 locus with adeno-associated viral (AAV) delivery of CRISPR-Cas9 and achieve rates of 6% to 16% of targeted hepatocytes, with no evidence of toxicity. We further show that the endogenous Apoa1 promoter can drive robust and sustained expression of therapeutic …

Deciphering An Agrp-Serotoninergic Neural Circuit In Distinct Control Of Energy Metabolism From Feeding, Yong Han, Guobin Xia, Dollada Srisai, Fantao Meng, Yanlin He, Yali Ran, Yang He, Monica Farias, Giang Hoang, István Tóth, Marcelo O Dietrich, Miao-Hsueh Chen, Yong Xu, Qi Wu

Children’s Nutrition Research Center Staff Publications

Contrasting to the established role of the hypothalamic agouti-related protein (AgRP) neurons in feeding regulation, the neural circuit and signaling mechanisms by which they control energy expenditure remains unclear. Here, we report that energy expenditure is regulated by a subgroup of AgRP neurons that send non-collateral projections to neurons within the dorsal lateral part of dorsal raphe nucleus (dlDRN) expressing the melanocortin 4 receptor (MC4R), which in turn innervate nearby serotonergic (5-HT) neurons. Genetic manipulations reveal a bi-directional control of energy expenditure by this circuit without affecting food intake. Fiber photometry and electrophysiological results indicate that the thermo-sensing MC4RdlDRN neurons …

Cd151 Drives Cancer Progression Depending On Integrin Α3Β1 Through Egfr Signaling In Non-Small Cell Lung Cancer, Jianjie Zhu, Tingting Cai, Jieqi Zhou, Wenwen Du, Yuanyuan Zeng, Ting Liu, Yulong Fu, Yue Li, Qian Qian, Xiuwei H. Yang, Qinglin Li, Jian-An Huang, Zeyi Liu

Pharmacology and Nutritional Sciences Faculty Publications

Background
Tetraspanins CD151, a transmembrane 4 superfamily protein, has been identified participating in the initiation of a variety of cancers. However, the precise function of CD151 in non-small cell lung cancer (NSCLC) remains unclear. Here, we addressed the pro-tumoral role of CD151 in NSCLC by targeting EGFR/ErbB2 which favors tumor proliferation, migration and invasion.

Methods
First, the mRNA expression levels of CD151 in NSCLC tissues and cell lines were measured by RT-PCR. Meanwhile, CD151 and its associated proteins were analyzed by western blotting. The expression levels of CD151 in NSCLC samples and its paired adjacent lung tissues were then verified …

Synphilin-1 And Its Effects On Pathogenesis Of Parkinson’S Disease, Mirghani Mohamed

Honors Scholar Theses

Parkinson's Disease (PD) is a progressive neurodegenerative and movement disorder primarily caused by the degradation of dopaminergic neurons. Known markers of neurodegeneration in PD are Lewy Bodies, which are fibrillar aggregates that are found in the brains of PD patients. Lewy Bodies can accumulate from specific mutations in the SNCA gene that codes for alpha-synuclein, a protein enriched in presynaptic neurons. A mutated SNCA gene can cause conformational aggregates of alpha-synuclein to form toxic species mediating neuronal death. Research into alpha-synuclein has led to the discovery of a binding partner known as synphilin-1 that is also found in protein aggregates …

Longitudinal Dynamics Of Circulating Tumor Cells And Circulating Tumor Dna For Treatment Monitoring In Metastatic Breast Cancer, Lorenzo Gerratana, Andrew A Davis, Qiang Zhang, Debora Basile, Giovanna Rossi, Kimberly Strickland, Alessandra Franzoni, Lorenzo Allegri, Zhaomei Mu, Youbin Zhang, Lisa E Flaum, Giuseppe Damante, William John Gradishar, Leonidas C Platanias, Amir Behdad, Hushan Yang, Fabio Puglisi, Massimo Cristofanilli

Department of Medical Oncology Faculty Papers

Liquid biopsy-based biomarkers, including circulating tumor cells (CTCs) and circulating tumor DNA (ctDNA), are increasingly important for the characterization of metastatic breast cancer (MBC). The aim of the study was to explore CTCs and ctDNA dynamics to better understand their potentially complementary role in describing MBC.

METHODS: The study retrospectively analyzed 107 patients with MBC characterized with paired CTCs and ctDNA assessments and a second prospective cohort, which enrolled 48 patients with MBC. CTCs were immunomagnetically isolated and ctDNA was quantified and then characterized through next-generation sequencing in the retrospective cohort and droplet digital polymerase chain reaction in the prospective …

Rap1 In The Vmh Regulates Glucose Homeostasis, Kentaro Kaneko, Hsiao-Yun Lin, Yukiko Fu, Pradip K Saha, Ana B De La Puente-Gomez, Yong Xu, Kousaku Ohinata, Peter Chen, Alexei Morozov, Makoto Fukuda

Faculty, Staff and Students Publications

The hypothalamus is a critical regulator of glucose metabolism and is capable of correcting diabetes conditions independently of an effect on energy balance. The small GTPase Rap1 in the forebrain is implicated in high-fat diet-induced (HFD-induced) obesity and glucose imbalance. Here, we report that increasing Rap1 activity selectively in the medial hypothalamus elevated blood glucose without increasing the body weight of HFD-fed mice. In contrast, decreasing hypothalamic Rap1 activity protected mice from diet-induced hyperglycemia but did not prevent weight gain. The remarkable glycemic effect of Rap1 was reproduced when Rap1 was specifically deleted in steroidogenic factor-1-positive (SF-1-positive) neurons in the …

Candida Cell-Surface-Specific Monoclonal Antibodies Protect Mice Against Candida Auris Invasive Infection, Jonothan Rosario-Colon, Karen Eberle, Abby Adams, Evan Courville, Hong Xin

School of Graduate Studies Faculty Publications

Candida auris is a multidrug-resistant fungal pathogen that can cause disseminated bloodstream infections with up to 60% mortality in susceptible populations. Of the three major classes of antifungal drugs, most C. auris isolates show high resistance to azoles and polyenes, with some clinical isolates showing resistance to all three drug classes. We reported in this study a novel approach to treating C. auris disseminated infections through passive transfer of monoclonal antibodies (mAbs) targeting cell surface antigens with high homology in medically important Candida species. Using an established A/J mouse model of disseminated infection that mimics human candidiasis, we showed that …

Week Of June 7, 2021, New York Medical College

InTouch

• Mark D. Hurwitz, M.D., is Named Chair of the Department of Radiation Medicine
• SHSP Named SDG Hub by the UNAI
• NYMC Hosts 12th COVID-19 Symposium
• New Pollinator Garden on Campus Supports Local Biodiversity
• NYC Health + Hospitals/Metropolitan Holds Annual Resident Research Day

Evidence-Based Approach To Early Outpatient Treatment Of Sars-Cov-2 (Covid-19) Infection, J Drew Payne, Kimberly Sims, Cynthia Peacock, Tanis Welch, Ruth E Berggren

Faculty, Staff and Students Publications

Misinformation and promotion of well-intended but disproved therapies for COVID-19 have plagued evidence-based shared decision-making throughout the COVID-19 pandemic. In times of crisis, clinicians may feel that their strong inclination to prescribe potentially harmful, unproven therapies on behalf of their patients is supported by beneficence. Clinicians should mindfully identify and avoid commission bias during this pandemic, especially as more data have accumulated to assist with clinically sound decision-making. We describe a more evidence-based approach to treatment of early outpatient COVID-19, stressing the availability of Food and Drug Administration emergency use authorization therapies and considering plausibly beneficial, nonprescription supplements that are …

Evaluation Of Somatic Mutations In Solid Metastatic Pan-Cancer Patients, Moom Roosan, Isa Mambetsariev, Rebecca Pharaon, Jeremy Fricke, Angel R. Baroz, Joseph Chao, Chen Chen, Mohd W. Nasser, Ramakanth Chirravuri-Venkata, Maneesh Jain, Lynette Smith, Susan E. Yost, Karen L. Reckamp, Raju Pillai, Leonidas Arvanitis, Michelle Afkhami, Edward W. Wang, Vincent Chung, Mihaela Cristea, Marwan Fakih, Marianna Koczywas, Erminia Massarelli, Joanne Mortimer, Yuan Yuan, Surinder K. Batra, Sumanta Pal, Ravi Salgia

Pharmacy Faculty Articles and Research

Metastasis continues to be the primary cause of all cancer-related deaths despite the recent advancements in cancer treatments. To evaluate the role of mutations in overall survival (OS) and treatment outcomes, we analyzed 957 metastatic patients with seven major cancer types who had available molecular testing results with a FoundationOne CDx^® panel. The most prevalent genes with somatic mutations were TP53, KRAS, APC, and LRP1B. In this analysis, these genes had mutation frequencies higher than in publicly available datasets. We identified that the somatic mutations were seven mutually exclusive gene pairs and an additional fifty-two co-occurring gene pairs. Mutations …

The Roles Of Tumor-Derived Exosomes In Altered Differentiation, Maturation And Function Of Dendritic Cells, Reza Hosseini, Leila Asef-Kabiri, Hassan Yousefi, Hamzeh Sarvnaz, Majid Salehi, Mohammad Esmaeil Akbari, Nahid Eskandari

School of Graduate Studies Faculty Publications

Tumor-derived exosomes (TDEs) have been shown to impede anti-tumor immune responses via their immunosuppressive cargo. Since dendritic cells (DCs) are the key mediators of priming and maintenance of T cell-mediated responses; thus it is logical that the exosomes released by tumor cells can exert a dominant influence on DCs biology. This paper intends to provide a mechanistic insight into the TDEs-mediated DCs abnormalities in the tumor context. More importantly, we discuss extensively how tumor exosomes induce subversion of DCs differentiation, maturation and function in separate sections. We also briefly describe the importance of TDEs at therapeutic level to help guide …

Racial Disparity And Social Determinants In Receiving Timely Surgery Among Stage I–Iiia Non-Small Cell Lung Cancer Patients In A U.S. Southern State, Paige Neroda, Mei Chin Hsieh, Xiao Cheng Wu, Kathleen B. Cartmell, Rachel Mayo, Jiande Wu, Chindo Hicks, Lu Zhang

School of Medicine Faculty Publications

Delayed surgery is associated with worse lung cancer outcomes. Social determinants can influence health disparities. This study aimed to examine the potential racial disparity and the effects from social determinants on receipt of timely surgery among lung cancer patients in Louisiana, a southern state in the U.S. White and black stage I–IIIA non-small cell lung cancer patients diagnosed in Louisiana between 2004 and 2016, receiving surgical lobectomy or a more extensive surgery, were selected. Diagnosis-to-surgery interval >6 weeks were considered as delayed surgery. Social determinants included marital status, insurance, census tract level poverty, and census tract level urbanicity. Multivariable logistic …

Iatrogenic Electrocautery Damage And Cellular-Based Corrosion Of Total Joint Arthroplasty Biomaterials, Kirsten Carol Miller

Theses and Dissertations (ETD)

Introduction. The number of patients undergoing a Primary Total Knee Arthroplasty (PTKA) has been increasing steadily each year. Of those PTKA patients, 20% report long-term pain and/or some functional deficit. Cobalt-Chromium-Molybdenum (CoCrMo) alloy is one of the most used materials in Total Joint Arthroplasty (TJA) implants due the material’s high strength, high corrosion resistance, and biocompatibility. The release of metal ions and potential occurrence of metallosis in TJA has been shown to be detrimental to the longevity of the implant. The mechanisms leading to this increase in metal ion concentrations have been up for debate, with some believing it is …

Near-Field Electrospinning And Characterization Of Biodegradable Small Diameter Vascular Grafts, William E. King Iii

Theses and Dissertations (ETD)

The ideal “off the shelf” tissue engineering, small-diameter (< 6 mm inner diameter (ID)) vascular graft hinges on designing a template that facilitates transmural ingrowth of capillaries to regenerate an endothelized neointimal surface. Previous traditionally electrospun (TES) approaches to create bioresorbable vascular grafts lack the pore sizes required to facilitate transmural capillary ingrowth required for successful in situ neovascular regeneration. Therefore, the ability to create scaffolds with program-specific architectures independent of fiber diameter via the relatively recent sub-technique of near-field electrospinning (NFES) represents a promising solution to create tissue engineering vascular grafts. These programmed large pore sizes are anticipated to promote in situ regeneration and improve the outcomes as well as the quality of life of patients with arterial disease.

In this dissertation, we manufactured via NFES as well as characterized biodegradable polydioxanone (PDO) small-diameter vascular grafts. Chapter 1 introduces the need for off-the-shelf, small-diameter vascular grafts to facilitate in situ regeneration, the process and pore size limitations of TES vascular grafts, and the promising use of NFES to develop precisely tailored PDO vascular grafts. Chapter 2 describes the process of NFES and details the current progress in NFES of biomedical polymers as well as the major limitations that exist in the field. Chapters 3, 4, and 5 contain primary research …

Week Of June 1, 2021, New York Medical College

InTouch

• NYMC Celebrates 162nd Commencement Virtually
• Golf Tournament and Reception Set for June 28
• Rare Benjamin Rush Textbook Donated to HSL by Peter Bentivegna, M.D. '85
• NYMC Hosts Celebrating Diversity: Then and Now Event
• Twelfth COVID-19 Symposium Set for June 3
• HSL Offers Endnote 20 Training
• SHSP Students Volunteer for COVID-19 Data Collection Project

Bolstering Geometric Morphometrics Sample Sizes With Damaged And Pathologic Specimens: Is Near Enough Good Enough?, D. Rex Mitchell, Claire A. Kirchhoff, Siobhán B. Cooke, Claire E. Terhune

Biomedical Sciences Faculty Research and Publications

Obtaining coordinate data for geometric morphometric studies often involves the sampling of dry skeletal specimens from museum collections. But many specimens exhibit damage and/or pathologic conditions. Such specimens can be considered inadequate for the analyses of shape and are excluded from study. However, the influences that damaged specimens may have on the assessment of normal shape variation have only been explored in two-dimensional coordinate data and no studies have addressed the inclusion of pathological specimens to date. We collected three-dimensional coordinate data from the cranium and mandible of 100 crab-eating macaques (Macaca fascicularis). Tests typically employed to analyze shape variation …

Immunological And Hematological Outcomes Following Protracted Low Dose/Low Dose Rate Ionizing Radiation And Simulated Microgravity, Amber M. Paul, Eliah G. Overbey, Willian A. Da Silveira, Nathaniel Szewczyk, Nina C. Nishiyama, Michael J. Pecaut, Sulekha Anand, Jonathan M. Galazka, Xiao Wen Mao

Publications

Using a ground-based model to simulate spaceflight [21-days of single-housed, hindlimb unloading (HLU) combined with continuous low-dose gamma irradiation (LDR, total dose of 0.04 Gy)], an in-depth survey of the immune and hematological systems of mice at 7-days post-exposure was performed. Collected blood was profiled with a hematology analyzer and spleens were analyzed by whole transcriptome shotgun sequencing (RNA-sequencing). The results revealed negligible differences in immune differentials. However, hematological system analyses of whole blood indicated large disparities in red blood cell differentials and morphology, suggestive of anemia. Murine Reactome networks indicated majority of spleen cells displayed differentially expressed genes (DEG) …

The Hippo/Yap Signaling Pathway In Cardiovascular Repair, Victor Camberos

Loma Linda University Electronic Theses, Dissertations & Projects

Following cardiovascular injury, neonatal mammalian hearts are capable of restoring damaged tissue while adult hearts cannot. Adults are hindered by their inability to replenish lost cardiomyocytes resulting in increased scar tissue formation and reduced cardiovascular function. The Hippo pathway and its downstream effector Yap1 have recently been identified as key modulators of cardiac development and regeneration in neonates. We investigated the role of Yap1 in a sheep model of cell-based cardiovascular repair in which regenerative neonatal cardiovascular progenitor cells (CPCs) were introduced following LAD ligation. Yap1 was induced in the infarcted regions of the heart following cell treatment, as shown …

Identification Of Effectors Of Synergistic Lethality In Candida Albicans-Staphylococcus Aureus Polymicrobial Intra-Abdominal Infection, Olivia Adele Todd

Theses and Dissertations (ETD)

Candida albicans, an opportunistic fungal pathogen, and Staphylococcus aureus, a ubiquitous pathogenic bacterium, are among the most prevalent causes of nosocomial infections and cause severe morbidity and mortality. Moreover, they are frequently coisolated from central venous catheters and deep-seated infections, including intra-abdominal sepsis. Relatively little is known about the complex interactions and signaling events that occur between microbes and even less so how microbial “cross-talk” shapes human health and disease.

Using a murine model of polymicrobial intra-abdominal infection (IAI), we have previously shown that coinfection with C. albicans and S. aureus leads to synergistic lethality whereas monomicrobial infection is nonlethal. …

Genomic Characterization Of Sickle Cell Mouse Models For Therapeutic Genome Editing Applications, Kaitly Jensen Woodard

Theses and Dissertations (ETD)

Sickle cell disease (SCD) is caused by a mutation of the β-globin gene (HBB), resulting in abnormal hemoglobin molecules that polymerize when deoxygenated, forming “sickle” shaped red blood cells (RBCs). Sickle RBCs lead to anemia, multi-organ damage and pain crises, beginning the first year of life. The onset of symptoms coincides with the developmental switch of β-like globin gene expression from fetal stage γ-globin to adult stage β-globin, resulting in a shift from fetal hemoglobin (HbF, α2γ2) to adult hemoglobin (HbA, α2β2). Some individuals harbor rare genetic variants in the extended β-globin gene cluster that cause constitutively elevated postnatal HbF, …

James Davidson Fawcett (1933–2020): Imbibing With The Kiwi, Louis A. Somma

Papers in Herpetology

An obituary and summary of the life of James D. Fawcett (1933-2020), herpetologist and instructor and professor of Biology at University of Nebraska at Omaha, 1972-2015. Includes bibliography of his works, list of master's theses chaired, and recollections of former students.

Lipocalin-2 Ameliorates The Signs And Outcomes Of Diabetes Mellitus In An Animal Model, Saeeda Mohammed Al Jaberi

Theses

Lipocalin-2 (LCN2) is a new adipocytokine consisting of 198 amino acids. It is also referred to as neutrophil gelatinase-associated lipocalin, siderocalin, uterocalin, α1-microglobulin related protein, or 24p3. LCN2 belongs to a large group of transport proteins that are capable of carrying small and lipid-soluble molecules in blood circulation. It has two membrane receptors, megalin/glycoprotein GP330, which binds human LCN2 and SLC22A17 or 24p3R, which forms complexes with mouse Lcn2 protein. LCN2 is encoded by a gene located at chromosome locus 9q34.11. LCN2 was initially isolated from neutrophil granules released at the site of infection and inflammation in humans and from …

Insights Into The Packaging Of Mouse Mammary Tumor Virus (Mmtv) Genomic Rna By Identifying Pr77ᴳᴬᴳ Binding Sites Involved During Its Selective Encapsidation, Akhil Chameettachal

Dissertations

Selective encapsidation and/or packaging of retroviral genomic RNA (gRNA) by Gag during retrovirus assembly is a crucial step for generating infectious virus particles. Despite having been studied extensively, the mechanism by which the retroviral Gag precursor selects and packages the retroviral genome remains largely unclear. Therefore, to understand the molecular mechanism(s) of mouse mammary tumor virus (MMTV) gRNA packaging, as a first step, expression of full-length recombinant Pr77^Gag -His6-tag fusion protein in bacteria was done. The recombinant Gag protein was then purified from the soluble fractions of bacterial cultures using immobilized metal affinity chromatography (IMAC) and size exclusion chromatography …