Relative and Quantitative Characterization of the Bovine Bacterial Ocular Surface Microbiome in the Context of Suspected Ocular Squamous Cell Carcinoma

The ocular surface microbiome is altered in certain disease states. The aim of this study was to characterize the bovine bacterial ocular surface microbiome (BBOSM) in the context of ocular squamous cell carcinoma (OSCC). The conjunctiva of normal (<i>n</i> = 28) and OSCC (<i>n<...

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Main Authors: Hannah B. Gafen, Chin-Chi Liu, Nikole E. Ineck, Clare M. Scully, Melanie A. Mironovich, Lauren Guarneri, Christopher M. Taylor, Meng Luo, Marina L. Leis, Erin M. Scott, Renee T. Carter, Andrew C. Lewin
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/13/12/1976
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author Hannah B. Gafen
Chin-Chi Liu
Nikole E. Ineck
Clare M. Scully
Melanie A. Mironovich
Lauren Guarneri
Christopher M. Taylor
Meng Luo
Marina L. Leis
Erin M. Scott
Renee T. Carter
Andrew C. Lewin
author_facet Hannah B. Gafen
Chin-Chi Liu
Nikole E. Ineck
Clare M. Scully
Melanie A. Mironovich
Lauren Guarneri
Christopher M. Taylor
Meng Luo
Marina L. Leis
Erin M. Scott
Renee T. Carter
Andrew C. Lewin
author_sort Hannah B. Gafen
collection DOAJ
description The ocular surface microbiome is altered in certain disease states. The aim of this study was to characterize the bovine bacterial ocular surface microbiome (BBOSM) in the context of ocular squamous cell carcinoma (OSCC). The conjunctiva of normal (<i>n</i> = 28) and OSCC (<i>n</i> = 10) eyes of cows aged 2 to 13 years from two farms in Louisiana and Wyoming were sampled using individual sterile swabs. DNA extraction followed by 16S ribosomal ribonucleic acid (rRNA) gene sequencing and real-time polymerase chain reaction (RT-PCR) were performed to, respectively, assess the relative and absolute BBOSM. Discriminant analysis (DA) was performed using RT-PCR data, and relative abundance analysis was performed using 16S rRNA gene sequencing data. The 11 most abundant phyla in both normal and OSCC-affected cows were identified using 16S rRNA gene sequencing analysis. The relative abundance of Euryarchaeota was found to be significantly lower (<i>p</i> = 0.0372) in OSCC eyes compared to normal eyes. Relative abundance differences within and between geographic locations were also identified. Quadratic DA categorized samples as OSCC or normal with 100% sensitivity and 83.3–100% specificity. Relative abundance analysis identified relative BBOSM phylum alterations in OSCC. Quadratic DA can be used to accurately categorize BBOSM from normal and OSCC ocular surface samples.
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spelling doaj.art-bed096d5be024f19af1b33d801747f7e2023-11-18T08:58:51ZengMDPI AGAnimals2076-26152023-06-011312197610.3390/ani13121976Relative and Quantitative Characterization of the Bovine Bacterial Ocular Surface Microbiome in the Context of Suspected Ocular Squamous Cell CarcinomaHannah B. Gafen0Chin-Chi Liu1Nikole E. Ineck2Clare M. Scully3Melanie A. Mironovich4Lauren Guarneri5Christopher M. Taylor6Meng Luo7Marina L. Leis8Erin M. Scott9Renee T. Carter10Andrew C. Lewin11Department of Veterinary Clinical Sciences, Louisiana State University, Baton Rouge, LA 70803, USADepartment of Veterinary Clinical Sciences, Louisiana State University, Baton Rouge, LA 70803, USADepartment of Veterinary Clinical Sciences, Louisiana State University, Baton Rouge, LA 70803, USADepartment of Veterinary Clinical Sciences, Louisiana State University, Baton Rouge, LA 70803, USADepartment of Veterinary Clinical Sciences, Louisiana State University, Baton Rouge, LA 70803, USADepartment of Pathobiological Sciences, Louisiana State University, Baton Rouge, LA 70803, USADepartment of Microbiology, Immunology, and Parasitology, School of Medicine, Louisiana State University, New Orleans, LA 70112, USADepartment of Microbiology, Immunology, and Parasitology, School of Medicine, Louisiana State University, New Orleans, LA 70112, USADepartment of Small Animal Clinical Sciences, Western College of Veterinary Medicine, Saskatoon, SK S7N 5B4, CanadaDepartment of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USADepartment of Veterinary Clinical Sciences, Louisiana State University, Baton Rouge, LA 70803, USADepartment of Veterinary Clinical Sciences, Louisiana State University, Baton Rouge, LA 70803, USAThe ocular surface microbiome is altered in certain disease states. The aim of this study was to characterize the bovine bacterial ocular surface microbiome (BBOSM) in the context of ocular squamous cell carcinoma (OSCC). The conjunctiva of normal (<i>n</i> = 28) and OSCC (<i>n</i> = 10) eyes of cows aged 2 to 13 years from two farms in Louisiana and Wyoming were sampled using individual sterile swabs. DNA extraction followed by 16S ribosomal ribonucleic acid (rRNA) gene sequencing and real-time polymerase chain reaction (RT-PCR) were performed to, respectively, assess the relative and absolute BBOSM. Discriminant analysis (DA) was performed using RT-PCR data, and relative abundance analysis was performed using 16S rRNA gene sequencing data. The 11 most abundant phyla in both normal and OSCC-affected cows were identified using 16S rRNA gene sequencing analysis. The relative abundance of Euryarchaeota was found to be significantly lower (<i>p</i> = 0.0372) in OSCC eyes compared to normal eyes. Relative abundance differences within and between geographic locations were also identified. Quadratic DA categorized samples as OSCC or normal with 100% sensitivity and 83.3–100% specificity. Relative abundance analysis identified relative BBOSM phylum alterations in OSCC. Quadratic DA can be used to accurately categorize BBOSM from normal and OSCC ocular surface samples.https://www.mdpi.com/2076-2615/13/12/1976squamous cell carcinomamicrobiomereal-time PCRsequencingbovinediscriminant analysis
spellingShingle Hannah B. Gafen
Chin-Chi Liu
Nikole E. Ineck
Clare M. Scully
Melanie A. Mironovich
Lauren Guarneri
Christopher M. Taylor
Meng Luo
Marina L. Leis
Erin M. Scott
Renee T. Carter
Andrew C. Lewin
Relative and Quantitative Characterization of the Bovine Bacterial Ocular Surface Microbiome in the Context of Suspected Ocular Squamous Cell Carcinoma
Animals
squamous cell carcinoma
microbiome
real-time PCR
sequencing
bovine
discriminant analysis
title Relative and Quantitative Characterization of the Bovine Bacterial Ocular Surface Microbiome in the Context of Suspected Ocular Squamous Cell Carcinoma
title_full Relative and Quantitative Characterization of the Bovine Bacterial Ocular Surface Microbiome in the Context of Suspected Ocular Squamous Cell Carcinoma
title_fullStr Relative and Quantitative Characterization of the Bovine Bacterial Ocular Surface Microbiome in the Context of Suspected Ocular Squamous Cell Carcinoma
title_full_unstemmed Relative and Quantitative Characterization of the Bovine Bacterial Ocular Surface Microbiome in the Context of Suspected Ocular Squamous Cell Carcinoma
title_short Relative and Quantitative Characterization of the Bovine Bacterial Ocular Surface Microbiome in the Context of Suspected Ocular Squamous Cell Carcinoma
title_sort relative and quantitative characterization of the bovine bacterial ocular surface microbiome in the context of suspected ocular squamous cell carcinoma
topic squamous cell carcinoma
microbiome
real-time PCR
sequencing
bovine
discriminant analysis
url https://www.mdpi.com/2076-2615/13/12/1976
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