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Full-Text Articles in Dentistry

Molecular Screening And Analysis Reveal Novel Oral Site-Specific Locations For The Cariogenic Pathogen Scardovia Wiggsiae, Steven Mcdaniel, Jaydene Mcdaniel, Katherine M. Howard, Karl Kingsley Jun 2021

Molecular Screening And Analysis Reveal Novel Oral Site-Specific Locations For The Cariogenic Pathogen Scardovia Wiggsiae, Steven Mcdaniel, Jaydene Mcdaniel, Katherine M. Howard, Karl Kingsley

Dental Medicine Faculty Publications

Introduction: Scardovia wiggsiae (SW) is a newly identified cariogenic pathogen associated with severe early childhood caries and oral disease. New studies have confirmed the presence of this organism among clinical samples from both pediatric and adult patients. However, the recent discovery of this organism has left researchers with only limited information available regarding the prevalence of this organism—and virtually no information regarding oral site-specific locations. Based upon this lack of information, the overall objective of this study was to perform an oral site-specific analysis of SW prevalence from clinical samples. Methods: Using an approved human subjects protocol, samples (n = …


Assessment Of Microrna (Mir)-365 Effects On Oral Squamous Carcinoma Cell Line Phenotypes, Jeffery Coon, Karl Kingsley Jun 2021

Assessment Of Microrna (Mir)-365 Effects On Oral Squamous Carcinoma Cell Line Phenotypes, Jeffery Coon, Karl Kingsley

Dental Medicine Faculty Publications

miR-365 is a microRNA that regulates transcription and has been demonstrated to promote oncogenesis and metastasis in some cancers while suppressing these effects in others. Virtually no information is known about the presence or function of miR-365 in oral cancers. Based upon this information, the primary goal of this project was to evaluate the expression of miR-365 in existing oral cancer cell lines. Five commercially available oral cancer cell lines (SCC4, SCC9, SCC15, SCC25, and CAL27) were obtained and cultured. RNA was then screened by PCR using primers specific for miR-365, as well as matrix metalloproteinase (MMP-2) and a downstream …


Microbial Screening Reveals Oral Site-Specific Locations Of The Periodontal Pathogen Selenomonas Noxia, Jaydene Mcdaniel, Steven Mcdaniel, Beanca Jhanine Samiano, Matthew Marrujo, Karl Kingsley, Katherine M. Howard Jun 2021

Microbial Screening Reveals Oral Site-Specific Locations Of The Periodontal Pathogen Selenomonas Noxia, Jaydene Mcdaniel, Steven Mcdaniel, Beanca Jhanine Samiano, Matthew Marrujo, Karl Kingsley, Katherine M. Howard

Dental Medicine Faculty Publications

Introduction: Selenomonas noxia (SN) is an important periodontal pathogen, associated with gingivitis and periodontitis. Many studies have found associations between SN and indicators of poor health outcomes, such as smoking, low socioeconomic status and obesity. However, less is known about the prevalence of this organism and more specifically about other oral site-specific locations that may harbor this organism. Methods: Using an existing patient repository (n = 47) of DNA isolated from saliva and other oral sites (n = 235), including the dorsum of the tongue, lower lingual incisor, upper buccal molar and gingival crevicular fluid (GCF), molecular screening for SN …


Differential Microrna Expression Of Mir-21 And Mir-155 With Oral Cancer Extracellular Vesicles In Response To Melationin, Matthew Hunsaker, Greta Barba, Karl Kingsley, Katherine M. Howard May 2019

Differential Microrna Expression Of Mir-21 And Mir-155 With Oral Cancer Extracellular Vesicles In Response To Melationin, Matthew Hunsaker, Greta Barba, Karl Kingsley, Katherine M. Howard

Dental Medicine Faculty Publications

Objective: Extracellular vesicles derived from oral cancer cells, which include Exosomes and Oncosomes, are membranous vesicles secreted into the surrounding extracellular environment. These extracellular vesicles can regulate and modulate oral squamous cell carcinoma (OSCC) progression through the horizontal transfer of bioactive molecules including proteins, lipids and microRNA (miRNA). The primary objective of this study was to examine the potential to isolate and evaluate extracellular vesicles (including exosomes) from various oral cancer cell lines and to explore potential differences in miRNA content. Methods: The OSCC cell lines SCC9, SCC25 and CAL27 were cultured in DMEM containing 10% exosome-free fetal bovine serum. …