Medicine and Health Sciences Commons^™

Migration Of Myeloid-Derived Suppressor Cells To Tumor And Tumor-Draining Lymph Node In A Murine Model Of Breast Cancer, Vyara Matson

Theses and Dissertations

Myeloid-derived suppressor cells (MDSC) consist of two major subsets, monocytic MDSC (M-MDSC) and polymorphonuclear MDSC (PMN-MDSC), both of which expand in cancer and suppress the activation of naïve T cells in the tumor-draining lymph node (TDLN) and the function of effector T cells in the tumor microenvironment. Thus, the ability of MDSC to enter the TDLN and the tumor is likely to be critical for suppression of the anti-tumor immune response. L-selectin mediates the homing of circulating naïve lymphocytes to lymph nodes and the migration of conventional myeloid cells, such as neutrophils and monocytes, to sites of inflammation, but its …

The Effects Of 830nm Light On Inflammation In Retinitis Pigmentosa, Krystal Marie Bach

Theses and Dissertations

Purpose: Retinitis Pigmentosa (RP) is an inherited retinal degenerative disease and the most common cause of blindness in developed countries, affecting approximately 1 in 4,000 people. RP is characterized by photoreceptor cell death and recent studies suggest that chronic inflammation may play a key role in the pathogenesis of RP. Currently, there are no known treatments or preventive measures to delay or halt the loss of photoreceptor cells. Photobiomodulation (PBM) by light in the far-red or near-infrared (NIR) range of the light spectrum has been documented to help promote cell survival and reduce inflammation in several disease states. Recent studies …

Bacterially-Based Immune Challenges And Trauma Elicit Terminal Investment In Male Aedes Aegypti, Molly K. Schumacher

Theses and Dissertations

Investment in life history traits such as immune function and reproduction is constrained by finite available resources. A cost-of-immunity trade-off may occur in response to infection when resources are diverted away from reproductive effort and into an immune response. Alternatively, an infected individual may enhance reproductive effort to maximize terminal reproductive success in response to the survival threat inherent to infection (terminal investment). We measured male Aedes aegypti reproductive behavior following inoculations with: living bacteria; killed bacteria as an immune elicitor; and a sham control. Mating competitiveness relative to naïve males was also determined through a binary mate choice experiment …

The Mechanism Of Suppression By A Protective Peptide In A Mouse Model Of Multiple Sclerosis, Alaa Mansour Almatrook

Theses and Dissertations

Multiple Sclerosis (MS) is an autoimmune demyelinating disease of the central nervous system (CNS). MS is characterized by an immune response directed against myelin sheath. This immune response results in demyelination, which leads to the clinical symptoms of MS. It is accepted that MS is mediated by T helper 1/ T helper 17 immune responses. However, the role of B cells and antibodies (Abs) are still under debate. The primary animal model for MS is the experimental autoimmune encephalomyelitis (EAE) that is induced by immunizing animals with one of the myelin components. We previously showed that immunizing mice with the …

Effects Of 670 Nm And 830 Nm Light On The Immune Response To Borrelia Burgdorferi, Felice Chen

Theses and Dissertations

ABSTRACT

EFFECTS OF 670 NM AND 830 NM LIGHT ON THE IMMUNE RESPONSE TO BORRELIA BURGDORFERI

by

Felice Chen

The University of Wisconsin-Milwaukee, 2015

Under the Supervision of Dean T. Nardelli, Ph.D. and Janis T. Eells, Ph.D.

Lyme arthritis is a debilitating joint disorder that arises from Lyme disease, which is a result of infection by the spirochete Borrelia burgdorferi. Antibiotics are the traditional treatment for Lyme disease, but chronic arthritis may persist in some patients despite antibiotic treatment. Therefore, other forms of treatment for Lyme arthritis are needed. Photobiomodulation (PBM) using red or near-infrared light, with wavelengths between 630 …

Crisis 2030: Aging At Risk, Guadalupe Aguilera Corona

Theses and Dissertations

This thesis analyzes critical issues affecting the older adult population of the United States in the year 2030 and recommends policies needed to remedy them. In the first chapter, the thesis addresses the upcoming aging crisis of the baby boomer population, both in numbers and affordability. The second chapter further describes and analyzes the major problems affecting the baby boomer population. The third chapter examines how technology can provide a universal and friendly design for older adult users. Chapters four through seven illustrate four distinctive case studies of Baby Boomers living in the

year 2030. The case studies provide resolutions …

Impaired T Lymphocyte Responses In Older Macaques: Possible Implications For Lentiviral Disease Progression, Sopitsuda Bunnag

Theses and Dissertations

Lentiviral infections of humans and rhesus macaques result in acquired immunodeficiency almost invariably. Yet the duration between the initial infection and the onset of generalized failure of the immune system varies between subjects, in both organisms. Furthermore, acquiring the infection at an older age tends to accelerate disease progression, but mechanisms underlying the latter phenomenon have not been elucidated. It is widely accepted that the events that take place during the very early stages of infection play a critical role in determining disease progression. During this brief period, a fierce competition between viral virulence mechanisms and host immune defenses takes …

Vitamin C: A Potential Regulator Of Inflammatory Response, Bassem M. Mohammed

Theses and Dissertations

Introduction: Neutrophils (PMNs) and Macrophages are the first responders recruited consecutively to the site of injury/inflammation. PMNs’ response/fate as well as macrophage reprogramming ultimately determine the course of resolution of inflammation. Physiologic wound healing has a significant inflammatory component. An exaggerated inflammation however is self-defeating leading to delayed healing. Parenteral vitamin C (VitC) attenuated inflammation in murine sepsis models and in patients with sepsis. However information about the mechanisms by which VitC regulates these events is limited.

Methods: Humanized mice lacking VitC synthesis capability (Gulo^-/-) were used. VitC sufficient and deficient mice were challenged with sterile inflammation, or …

The Role Of Noxa/Mcl-1 In Head And Neck Squamous Cell Carcinoma (Hnscc) Treatment, June Young Lee

Theses and Dissertations

Head and neck cancer is the sixth leading type of cancer with 90 percent of head and neck cancer arising from squamous cell lining on the epithelium of the oral and nasal cavity, pharynx, and salivary gland. Even with tremendous achievements on chemotherapeutic drugs and therapies, the long-term prognosis of patients with advanced head and neck squamous cell carcinoma (HNSCC) has shown little improvement over the last three decades. Cisplatin is one of widely used chemotherapeutic drugs for multiple

cancers, including head and neck cancer, but the prolonged use of this drug is limited by its toxicity and by the …

The Characterization Of A Putative Virulence Factor Expressed By Sneathia Amnii, Amy Sanford

Theses and Dissertations

Preterm birth, defined at birth before 37 weeks gestation, affects millions of newborns worldwide every year. Preterm birth is a leading cause of infant morbidity and mortality. One major cause of preterm birth is preterm premature rupture of membranes (PPROM), which can be triggered by bacterial infection and inflammation. A bacterial species that has been implicated in preterm birth and other obstetric complications is Sneathia amnii. The goals of this study were to observe cytopathogenic effects caused by S. amnii strain Sn35 and identify putative virulence factors causing those effects. Sn35 was able to adhere to, invade, and damage/kill …

Axon Initial Segment Stability In Multiple Sclerosis, Suneel K. Thummala

Theses and Dissertations

Multiple sclerosis (MS) is an autoimmune disease of the central nervous system characterized by inflammation and demyelination. In addition to these hallmark features, MS also presents with axonal pathology, which is likely responsible for the signs and symptoms of the disease. Although prominent in MS, axonal pathology is frequently considered a consequence of demyelination and not a primary event. This conclusion is consistent with demyelination inducing the loss of specific axonal domains, known as the nodes of Ranvier that are responsible for the propagation of action potentials along the axon. In contrast, we propose that axonal pathology associated with MS …