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Full-Text Articles in Female Urogenital Diseases and Pregnancy Complications

Sexual Dimorphism Of Glomerular Capillary Morphology In Rats, Zackarias Coker May 2023

Sexual Dimorphism Of Glomerular Capillary Morphology In Rats, Zackarias Coker

Undergraduate Honors Theses

Chronic kidney disease (CKD) progresses faster in males than females; however, the underlying mechanisms remain poorly understood. Sex differences in glomerular capillary morphology has been hypothesized to contribute, in part, to the increased susceptibility to hypertension-induced renal injury and CKD progression in males, but this has not been investigated. The goal of the present study was to assess glomerular capillary morphology in male vs. female rats with intact kidneys and after uninephrectomy (UNX). We hypothesized that glomerular capillary radii (RCAP) and length (LCAP) would be greater in male rats.

Male (n=4) and female (n=4) with intact …


Gestational Vulnerability To Ozone Air Pollution - A Placental Story, Vishnupriya Alavala, Sarah Brent, Russell Hunter, Matthew J. Campen, Andrew Ottens Jan 2023

Gestational Vulnerability To Ozone Air Pollution - A Placental Story, Vishnupriya Alavala, Sarah Brent, Russell Hunter, Matthew J. Campen, Andrew Ottens

Undergraduate Research Posters

About 99% of the global population resides in areas with air pollution surpassing World Health Organization standards. Air pollution is associated with adverse neonatal health outcomes such as low fetal birth weight and an increased risk for maternal pre-eclampsia. A particularly reactive air pollutant is ozone, which forms reactive oxygen species that induce cellular damage. Research exists on the dispersion of reactive oxygen species through the bloodstream leading to fetal vulnerability during pregnancy, specifically via the placenta. Yet, placental and fetal development is a temporal process with varied susceptibility to negative gestational outcomes.

To addressing this gap, our laboratory utilized …


Genital Chlamydia Infection Is Influenced By The Female Sex Hormones Estrogen And Progesterone In Vivo, Amy Gail Gravitte Dec 2021

Genital Chlamydia Infection Is Influenced By The Female Sex Hormones Estrogen And Progesterone In Vivo, Amy Gail Gravitte

Electronic Theses and Dissertations

Chlamydia is the most common bacterial sexually transmitted infection in the United States and worldwide. It often goes unnoticed due to lack of symptoms and left untreated it can ascend the female genital tract to cause sequelae like pelvic inflammatory disease and irreversible tubal infertility. In reproductive-aged women, female sex hormones estrogen (E2) and progesterone (P4) concentrations fluctuate during the menstrual cycle and are influenced by hormonal contraceptives and hormone replacement therapy. E2 and P4 influence genital Chlamydia infection in women and mice, but these multifactorial interactions are not entirely mapped out. The complex interplay of E2 and P4 with …


022— Examining P27 Expression And Quiescence In Clobetasol-Exposed Umscv-4 Vulvar Cancer Cells, Nina Mustico, Vincent Scalcione, Jani E. Lewis Apr 2021

022— Examining P27 Expression And Quiescence In Clobetasol-Exposed Umscv-4 Vulvar Cancer Cells, Nina Mustico, Vincent Scalcione, Jani E. Lewis

GREAT Day Posters

Vulvar cancer is rare, mostly afflicting women aged 60 and older [1]. The cancer is often preceded by a common vulvar rash, lichen sclerosus, that is usually treated with the ultra-potent corticosteroid, clobetasol propionate. This treatment may, in turn, be associated with vulvar carcinogenesis. Our previous findings suggest that clobetasol is causing UMSCV-4 vulvar carcinoma cells to enter a state of quiescence. Quiescence is temporary removal from the cell cycle and can be thought of as a dormant state in which cells are not actively dividing [2]. There is growing evidence suggesting that quiescence may play a role in allowing …


Targeting Epigenetic Mechanisms In Endometriosis, Sarah Elizabeth Brunty Jan 2021

Targeting Epigenetic Mechanisms In Endometriosis, Sarah Elizabeth Brunty

Theses, Dissertations and Capstones

Endometriosis is a complex and elusive gynecological disease in which the inner lining of the uterus grows in locations outside of the uterus and forms lesions. It is known to affect 1 in 9 women of reproductive age worldwide. Symptoms of endometriosis include severe pain, heavy periods, and infertility. While multiple theories of origin exist, none fully encompass all aspects of the disease, although all theories agree that this is an inflammation-driven disease. Due to this, many researchers are turning towards epigenetics to explain the initiation and progression of endometriosis. However, what is causing these epigenetic changes is still a …


Role Of Oxidative Stress And Altered Thyroid Hormones In Unexplained Infertility, Rehana Rehman, Hiba Ismail Rajpar, Mussarat Ashraf, Najeeha Talat Iqbal, Salima Lalani, Faiza Alam Aug 2020

Role Of Oxidative Stress And Altered Thyroid Hormones In Unexplained Infertility, Rehana Rehman, Hiba Ismail Rajpar, Mussarat Ashraf, Najeeha Talat Iqbal, Salima Lalani, Faiza Alam

Department of Biological & Biomedical Sciences

Objective: To explore the link between altered thyroid profile and oxidative stress marker in females with unexplained infertility.
Methods: The cross-sectional case-control study was carried out at the Islamabad Clinic Serving Infertile Couples, Islamabad, Pakistan, from June 2016 to August 2017, and comprised women aged 18-40 years regardless of ethnic background who were divided into two groups; those with unexplained infertility were the cases, while fertile women acted as the controls. Serum was analysed for triiodothyronine, thyroxine and thyroid stimulating hormone as well as for oxidative stress markers including manganese superoxide dismutase, glutathione reductase and adrenaline using enzymelinked immunosorbent assay. …


Impact Of Parity On Gait Biomechanics, Bekah P. Stein Jul 2020

Impact Of Parity On Gait Biomechanics, Bekah P. Stein

Masters Theses

Background: Symptomatic knee osteoarthritis (OA) is an incurable condition that affects nearly 50% of adults, and women are twice as likely as men to develop OA. Throughout pregnancy, women experience large changes in morphology and gait mechanics, as well as changes in joint loading. It is possible these adaptations could cause lasting changes postpartum, which may potentially contribute to initiation of OA, thereby increasing the overall risk of OA for women.

Purpose: This exploratory study looked to identify differences between lower limb gait mechanics of healthy nulliparous women and healthy parous women.

Methods: 28 healthy female participants (14 parous, 14 …


Nutrient Sensing Pathways Mediating Igfbp1 Phosphorylation In Fgr, Shapnil Bhuiyan Jul 2020

Nutrient Sensing Pathways Mediating Igfbp1 Phosphorylation In Fgr, Shapnil Bhuiyan

Electronic Thesis and Dissertation Repository

Impairment of fetal oxygen levels and nutrient delivery contributes to fetal growth restriction (FGR), which affects 20% of pregnancies. Such cellular stress induces hepatic Insulin-like Growth Factor Binding Protein 1 (IGFBP1) phosphorylation, which sequesters Insulin-like Growth Factor 1 (IGF-I) and markedly reduces fetal growth signaling. IGFBP1 hyperphosphoryaltion in hypoxia is mediated through the mTOR signaling pathway and through the Amino Acid Response (AAR) pathway during amino acid deprivation. Hypoxia stimulates upstream mTORC1 regulators, AMPK and REDD1 which are well-established upstream regulators of one of the two mTOR complexes, mTORC1. The molecular mechanisms by which upstream mTORC1-driven processes regulate IGFBP1 phosphorylation …


Relation Of Flt-1 And Endothelial Function In Women Soon After Delivery: Effect Of Physical Activity And Sedentary Behavior, Chloe W. Caudell Apr 2020

Relation Of Flt-1 And Endothelial Function In Women Soon After Delivery: Effect Of Physical Activity And Sedentary Behavior, Chloe W. Caudell

Senior Theses

Adverse pregnancy outcomes (APOs) are believed to be caused by poor placental formation. APOs can be characterized by elevated levels of a circulating Fms-like tyrosine kinase biomarker called Flt-1, produced by the placenta when its blood vessels are shallow or inadequately formed. Flt-1 acts directly on the maternal endothelium to impair vascular function during pregnancy and contributes to maternal features of APOs. This study aimed to evaluate the relation of Flt-1 and endothelial function in women soon after delivery. This study also aimed to evaluate the relation of Flt-1 and physical activity and sedentary behavior in women during and soon …


Effects Of Gestational Ozone Exposure On Privileged Placental And Brain Barrier Integrity, Alexander I. Hamm Jan 2020

Effects Of Gestational Ozone Exposure On Privileged Placental And Brain Barrier Integrity, Alexander I. Hamm

Theses and Dissertations

Ambient outdoor ozone, a common of component of photochemical smog and urban air pollution, is linked to various neurological and vascular pathologies. Its immediate reaction with lung surfactant after inhalation results in complete reactivity of the gas, with no active ozone passing into circulation. This indicates the presence of secondary and tertiary mediators in ozone-related systemic pathologies after pulmonary insult. In vasculature, ozone exposure is associated with an acute hypertensive phenotype apparent at least 24 hours after dose, such as experienced on a hot summer afternoon in a large metropolitan area like Los Angeles or Mexico City. However, the effects …


Characterizing The Combination Of Rpa Inhibitors With Parp Inhibitors In High-Grade Serous Ovarian Cancer, Yat Tang Dec 2019

Characterizing The Combination Of Rpa Inhibitors With Parp Inhibitors In High-Grade Serous Ovarian Cancer, Yat Tang

Theses & Dissertations

High-grade serous ovarian cancer (HGSC) is the most common and deadly gynecologic malignancy. HGSC patients with BRCA1/2 mutations have homologous recombination deficiency (HRD), requiring parallel pathways to maintain genome integrity (e.g., PARP1, PARP2). Approximately 50% of ovarian carcinomas are estimated to exhibit HRD. For the remaining 50% and the large percentage of HRD patients with acquired or innate resistance to single-agent PARP inhibitors, there is a need to develop alternative therapeutic strategies.

Replication Protein A (RPA) is a heterotrimeric protein crucial for genome maintenance. Phosphorylation of RPA in DNA damage response (DDR) is a negative regulator of DNA end resection. …


The Role Of Non-Neuronal Acetylcholine In Urogenital Chlamydial Infection, Jessica R. Lockhart Dec 2018

The Role Of Non-Neuronal Acetylcholine In Urogenital Chlamydial Infection, Jessica R. Lockhart

Electronic Theses and Dissertations

Chlamydia trachomatiscauses a bacterial sexually transmitted infection, Chlamydia, that is often chronic and casues reproductive complications in women. We hypothesized that Chlamydia infection increases local acetylcholine (ACh) production, which regulates the host’s inflammatory response to the infection. Female mice infected with C. muridarumwere sacrificed at days 3, 9, 15, and 21 post-infection, genital tract tissues harvested, and immunohistochemistry performed to enumerate ACh-producing cells. Infection increased the number of ACh-producing cells in cervical tissue at days 3,15, and 21 post-infection (pi), uterine tissue at day 3 and 9 pi, and ovarian tissue day 3, 15, and 21 pi. These …


Influence Of Body Mass Index And Polycystic Ovarian Syndrome On Icsi/Ivf Treatment Outcomes: A Study Conducted In Pakistani Women, Rehana Rehman, Rozina Mustafa, Rabiya Ali, Saeeda Shaharyar, Faiza Alam Aug 2018

Influence Of Body Mass Index And Polycystic Ovarian Syndrome On Icsi/Ivf Treatment Outcomes: A Study Conducted In Pakistani Women, Rehana Rehman, Rozina Mustafa, Rabiya Ali, Saeeda Shaharyar, Faiza Alam

Department of Biological & Biomedical Sciences

Background: Obesity may establish a crucial barrier for effective fertility treatment in polycystic ovary syndrome (PCOS) females.
Objective: To compare results of intra-cytoplasmic sperm injection (ICSI) in females with and without polycystic ovarian syndrome and further appraise the effect of obesity in PCOS females.
Materials and methods: A cross-sectional study from June 2015 to July 2016 included non-PCOS and PCOS (recognized by Rotterdam criteria) females who underwent ICSI. The PCOS were further stratified into non-obese and Obese according to the South Asian criteria for body mass index. Results were categorized on the basis of beta-human chorionic gonadotropin (β-hCG) and transvaginal …


The Youngest Victims Of The Opioid Epidemic, Katelyn E. Miller, Abby Reed Apr 2018

The Youngest Victims Of The Opioid Epidemic, Katelyn E. Miller, Abby Reed

The Research and Scholarship Symposium (2013-2019)

When babies are born to opioid-addicted mothers, they often develop Neonatal Abstinence Syndrome (NAS). NAS is characterized by symptoms associated with abrupt opioid withdrawal (“Neonatal Abstinence”, 2015). By preventing NAS in babies before they are born and properly caring for a baby with NAS after birth, we will aim to decrease the incidence of this condition and as its harmful effects in the lives of babies. In Ohio, there are many neonates suffering from NAS. The rates for babies born with NAS have quadrupled since 2011 when 2.2 out of every 1000 babies had NAS to 2015, where 12.3 out …


Cross Talk Between Serum Kisspeptin-Leptin During Assisted Reproduction Techniques, Rehana Rehman, Zehra Jamil, Aqsa Khalid, Syeda Sadia Fatima Apr 2018

Cross Talk Between Serum Kisspeptin-Leptin During Assisted Reproduction Techniques, Rehana Rehman, Zehra Jamil, Aqsa Khalid, Syeda Sadia Fatima

Department of Biological & Biomedical Sciences

Background & Objective: Leptin facilitates onset of puberty by impact on hypothalamic Kisspeptin, gonadotropin releasing hormone, follicle stimulating and luteinizing hormone. The link of peripheral Leptin-Kisspeptin in regulating the ovarian and endometrial tissue in relation to adiposity is unknown. Therefore, we wanted to identify Kisspeptin-Leptin association with body mass index (BMI) and success of assisted reproductive treatments (ART) in infertile females.
Methods: A cross sectional study was carried from August 2014 till May 2016 after receiving ethical approval at Australian Concept Infertility Medical Centre, and Aga Khan University. The study group comprised of females with an age range …


Possible Causes Of Preeclampsia And Potential Treatments, Helene Weinreb Jan 2018

Possible Causes Of Preeclampsia And Potential Treatments, Helene Weinreb

The Science Journal of the Lander College of Arts and Sciences

Preeclampsia is a common complication of pregnancy characterized by hypertension and proteinuria. Its symptoms are well-defined, but the pathophysiology is not fully understood. This paper analyzes several of the most credible causes of this syndrome and attempts to relate these to the known risk factors. Current preeclampsia treatments are examined, and special focus is given to novel experimental treatments which offer hope of ending preeclampsia and eclampsia.


The Effects Of Continuous Insulin Pump Therapy On Glycemic Control In Pregnant Type 1 Diabetics, Kimberly Kelsey Dec 2017

The Effects Of Continuous Insulin Pump Therapy On Glycemic Control In Pregnant Type 1 Diabetics, Kimberly Kelsey

Senior Theses

Type 1 Diabetics have various ways of managing their diabetes that have been studied for their effectiveness. Pregnancy in the Type 1 Diabetic has been understudied. It is known that Diabetics in general have poorer pregnancy outcomes because of poor glycemic control. This coupled with the fact that the body needs 3-4 times more insulin as pregnancy comes to an end makes managing blood glucose levels challenging for diabetics (Lowdermilk, 2016, p. 689). For the Type 1 Diabetic, there are two main ways to control diabetes: multiple daily injections using at least two type of insulin and continuous subcutaneous insulin …


Characterization Of E-Cadherin Regulation In Response To Zeb1 Inhibition In Endometrial Cancer Cell Lines, Chidozie Paul Chukwu May 2017

Characterization Of E-Cadherin Regulation In Response To Zeb1 Inhibition In Endometrial Cancer Cell Lines, Chidozie Paul Chukwu

Graduate School of Biomedical Sciences Theses and Dissertations

Epithelial to mesenchymal transition (EMT) is the process in which cells lose their epithelial structure during gastrulation. This process also affects the migration and movement of tumor cells and promotes invasion and metastases of endometrial carcinomas. Down-regulation of E-cadherin (CDH1) by transcription factors is the key target of EMT modulators and is achieved mainly by ZEB1 (zinc finger E-box binding homeobox 1). Current research looking at restoration of E-cadherin expression in vitro involves the use of small molecules such as histone deacetylase (HDAC) inhibitors and DNA methyltransferase inhibitors. Trichostatin A (TSA) and small interfering ribonucleic acid (siRNA) are tools that …


Drug-Induced Nutrient Depletion, Rodney Richmond Aug 2016

Drug-Induced Nutrient Depletion, Rodney Richmond

College of Pharmacy Faculty Research ​and Publications

No abstract provided.


Characterization Of Bacterial Pathogens Involved In Aerobic Vaginitis: Prevalence, Strain Characterization And Sequelae, Leslie A. Lafferty May 2016

Characterization Of Bacterial Pathogens Involved In Aerobic Vaginitis: Prevalence, Strain Characterization And Sequelae, Leslie A. Lafferty

Graduate School of Biomedical Sciences Theses and Dissertations

Aerobic vaginitis (AV) is a more recently defined infection that involves aerobic pathogenic bacteria that replace the normal flora of the vaginal tract. It is commonly mistaken for other vaginal infections, such as bacterial vaginosis (BV), because they share many common symptoms. AV leads to complications during pregnancy, such as premature delivery and amnion infection, and is diagnosed by indications that range from vaginal discharge to inflammation. Because this infection is difficult to diagnose differentially from other vaginal infections, it is important to determine what pathogens are involved in AV so that we may have the ability to detect them. …


Non-Invasive Determination Of Pre-Clinical Markers Of Cardiovascular Diseases In Low Birth Weight And Maternal Western Diet Guinea Pig Offspring Exposed To A Postnatal Western Diet, Jacky Chiu Aug 2015

Non-Invasive Determination Of Pre-Clinical Markers Of Cardiovascular Diseases In Low Birth Weight And Maternal Western Diet Guinea Pig Offspring Exposed To A Postnatal Western Diet, Jacky Chiu

Electronic Thesis and Dissertation Repository

Low birth weight (LBW), and maternal Western Diet (WD) consumption have both been independently implicated to increase the risk of developing cardiovascular diseases (CVDs) in later life. These fetal programmed risks are also believed to exacerbate the effects of a postnatal WD pattern. Therefore, resulting in the development of pre-clinical markers of CVDs, such as insulin resistance (IR), coronary circulation disruptions. This thesis aimed to elucidate the roles of sub-optimal in utero growth through placental insufficiency, or chronic maternal WD consumption, and postnatal WD consumption on the long-term programming of CVDs in a guinea pig model. Early pre-clinical markers of …


Identification Of Transcription Factors Gzf3, Rfx1, Orf19.3928 As Being Implicated In Candida-Bacterial Interactions., Joni Watson May 2015

Identification Of Transcription Factors Gzf3, Rfx1, Orf19.3928 As Being Implicated In Candida-Bacterial Interactions., Joni Watson

Undergraduate Honors Theses

Candida albicans is an opportunistic pathogen that is present in the normal flora in a majority of individuals. One key factor in C. albicans virulence is the ability to change its morphology from yeast to an elongated or hyphal form. The regulation of this morphogenesis relies in part upon quorum sensing (QS) molecules. C. albicans often exists as part of a mixed culture alongside other microbes and is influenced by their presence as well as the presence of QS molecules that they produce. In this study, a library of diploid homozygous transcriptional regulator knockout (TRKO) mutants were screened to identify …


Maternal Obesity And Incidence Of Depression, Caroline A. Habjan May 2015

Maternal Obesity And Incidence Of Depression, Caroline A. Habjan

Honors Capstone Projects - All

Obesity is a national epidemic in the United States, which both directly and indirectly affects the social productivity of individuals, the American macro economy and individuals’ personal health and well being. Depression often interferes with an individual’s ability to work, sleep, study, eat, and enjoy life. A maternal state of both obesity and depression may cause serious adverse medical conditions in the mother’s child. Taking steps to treat depression and obesity are critical in the construct of modern medicine. This project yields results that have the potential to make treatment options better tailored, more efficient, effective and economically-sound for the …


Gestational Diabetes, David D. Monin Apr 2015

Gestational Diabetes, David D. Monin

Biology Undergraduate

No abstract provided.


Targeted Single Molecule Sequencing Methodology For Ovarian Hyperstimulation Syndrome., Funda Orkunoglu-Suer, Arthur F. Harralson, David Frankfurter, Paul Gindoff, Travis J. O'Brien Apr 2015

Targeted Single Molecule Sequencing Methodology For Ovarian Hyperstimulation Syndrome., Funda Orkunoglu-Suer, Arthur F. Harralson, David Frankfurter, Paul Gindoff, Travis J. O'Brien

Genomics and Precision Medicine Faculty Publications

BACKGROUND: One of the most significant issues surrounding next generation sequencing is the cost and the difficulty assembling short read lengths. Targeted capture enrichment of longer fragments using single molecule sequencing (SMS) is expected to improve both sequence assembly and base-call accuracy but, at present, there are very few examples of successful application of these technologic advances in translational research and clinical testing. We developed a targeted single molecule sequencing (T-SMS) panel for genes implicated in ovarian response to controlled ovarian hyperstimulation (COH) for infertility.

RESULTS: Target enrichment was carried out using droplet-base multiplex polymerase chain reaction (PCR) technology (RainDance®) …


Human Papillomavirus And The Gardasil Vaccine: Medicalization And The Gendering Of Bodies And Bodily Risk, Lauren Camara Oct 2014

Human Papillomavirus And The Gardasil Vaccine: Medicalization And The Gendering Of Bodies And Bodily Risk, Lauren Camara

Laurier Undergraduate Journal of the Arts

No abstract provided.


Study Of Intuitive Eating Ratings And Self-Efficacy Differences In Women With Polycystic Ovarian Syndrome (Pcos), Meaghan Ormsby Schillinger Jul 2014

Study Of Intuitive Eating Ratings And Self-Efficacy Differences In Women With Polycystic Ovarian Syndrome (Pcos), Meaghan Ormsby Schillinger

Master's Theses and Doctoral Dissertations

Background: Polycystic Ovarian Syndrome (PCOS) is an endocrine disorder, which if left untreated can lead to infertility and diabetes.

Objective: To determine whether women with PCOS who practice intuitive eating skills are more confident in sustaining healthy lifestyle changes.

Methods: A web-based survey was completed by 120 women with PCOS. Bivariate associations between the self-efficacy and intuitive eating scales was investigated using scatterplots, Pearson’s correlation coefficient, and a simple linear regression model. Ratings on the intuitive eating scale were dichotomized as high or low and self-efficacy ratings were compared.

Results: Of the 120 responses, 89% of …


Characterizing The Human Vaginal Microbiome Using High-Throughput Sequencing, Jean Megan E. Macklaim Dec 2013

Characterizing The Human Vaginal Microbiome Using High-Throughput Sequencing, Jean Megan E. Macklaim

Electronic Thesis and Dissertation Repository

The human vaginal microbiome undoubtedly has a significant role in reproductive health and for protection from infectious organisms. Recent efforts to characterize the bacterial species of the vagina using molecular techniques have uncovered an unexpected diversity. Using high-throughput sequencing I sought to describe the structure and function of the vaginal microbiome under different physiological states including healthy, bacterial vaginosis (BV), post-menopausal vaginal atrophy, and acute vulvovaginal candidiasis (VVC).

Partial 16S rRNA gene sequencing revealed that healthy, asymptomatic women most often have vaginal biotas dominated by Lactobacillus iners or L. crispatus. In contrast, BV is a heterogeneous, highly diversified condition …


Use Of Do-Not-Resuscitate Orders In Patients With Kidney Disease Hospitalized With Acute Myocardial Infarction, Joline Chen, Jonathan Sosnov, Darleen Lessard, Jorge Yarzebski, Joel Gore, Robert Goldberg Jul 2010

Use Of Do-Not-Resuscitate Orders In Patients With Kidney Disease Hospitalized With Acute Myocardial Infarction, Joline Chen, Jonathan Sosnov, Darleen Lessard, Jorge Yarzebski, Joel Gore, Robert Goldberg

Jorge L. Yarzebski

BACKGROUND: Patients with kidney disease are at increased risk for adverse health outcomes in comparison to patients without kidney disease. Therefore, patients with kidney disease may have greater use of do-not-resuscitate (DNR) orders than patients without kidney disease in the setting of an acute illness. We examined the association between advanced kidney disease and use of DNR orders in patients admitted with an acute myocardial infarction (AMI) to all greater Worcester, MA, hospitals as part of an epidemiological study.

METHODS: Use of DNR orders in 4,033 Worcester residents hospitalized with AMI at 11 greater Worcester medical centers during 1997, 1999, …


Novel Binding Domains Mediate Binding Of Hpv 16 E6 To Fadd And Procaspase 8, Sandy S. Tungteakkhun Jun 2008

Novel Binding Domains Mediate Binding Of Hpv 16 E6 To Fadd And Procaspase 8, Sandy S. Tungteakkhun

Loma Linda University Electronic Theses, Dissertations & Projects

To evade the host response to infection, viruses have developed means to survive and propagate. HPV 16, a causative agent of cervical cancer and of some cases of oropharyngeal cancers, is one example. We have reported that the early viral protein E6 binds to proteins necessary for propagation of the apoptotic signal following receptor/ligand interactions, such as those mediated by FADD DED and procaspase 8 DED. E6 expression leads to the dose-dependent accelerated degradation of FADD and the protection of E6-expressing cells from Fas-induced apoptosis. Surprisingly, the splice isoforms of E6, E6large and E6*, affect the stability of procaspase …