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Description
Oropharyngeal cancer (OPC) is the world's sixth most common cancer and in many cases is associated with infection with human papillomavirus (HPV) type 16. Antibodies (Abs) to HPV16 viral antigens are potential diagnostic biomarkers of HPV-associated OPC (HPV OPC). A custom multiplexed bead array assay was used to detect Abs to HPV16 antigens E1, CE2, NE2, E4, E5, E6, E7, L1, and L2. Following extensive optimization of the assay, these genes were expressed as GST-fusion proteins and captured onto anti-GST magnetic beads. Serum was obtained from 256 OPC patients at the time of diagnosis and from 78 healthy controls. The median fluorescent intensity (MFI) was determined for each antigen and ratios of MFI to control GST-fusion protein were determined for each serum sample. Cutoff values were set as the mean + 3 SD of the MFIs of healthy controls and p-values were calculated using Wilcoxon unpaired and Fisher's exact test. Results of this experiment showed that HPV16 E1, CE2, NE2, E4, E6, and E7 Ab levels were elevated in OPC patients compared to controls (p<0.001), as were Ab levels to L1 (p = 0.013) and L2 (p = 0.023), per Fischer's exact test. Abs to CE2, NE2, E6, and E7 were identified as a potential biomarker panel for early detection of HPV OPC. For the 111 patients with known HPV+ tumors as measured by tumor PCR of E6 and/or E7, this assay had a sensitivity of 90% and specificity of 87% (AUC = 0.96). From these results, we conclude that custom bead array assays can be used to detect HPV16 Abs in patient sera, and we have identified a 4-Ab biomarker panel for the early detection of HPV OPC.
ContributorsGoulder, Alison Leigh (Author) / Anderson, Karen (Thesis director) / Lake, Douglas (Committee member) / Cheng, Julia (Committee member) / Barrett, The Honors College (Contributor) / School of Life Sciences (Contributor)
Created2013-05
ContributorsSchildkret, David (Conductor) / Chamber Singers (Performer) / ASU Library. Music Library (Publisher)
Created2018-02-10
ContributorsGlenn, Erica (Conductor) / Evans, Bartlett R. (Conductor) / Oh, Eun-Mi (Conductor) / Thompson, Jason D. (Conductor) / Schildkret, David (Conductor) / Concert Choir (Performer) / Arizona Statesmen (Performer) / Women's Chorus (Performer) / Gospel Choir (Performer) / Barrett Choir (Performer) / Chamber Singers (Performer) / Choral Union (Performer) / ASU Library. Music Library (Publisher)
Created2017-11-30
ContributorsUniversity Choirs (Performer) / ASU Library. Music Library (Publisher)
Created2000-11-16
ContributorsSchildkret, David (Conductor) / White, Jamilyn (Performer) / Krison, Danielle (Performer) / Barefield, Robert (Performer) / FitzPatrick, Carole (Performer) / Chamber Singers (Performer) / Choral Union (Performer) / Symphonic Chorale (Performer) / University Symphony Orchestra (Performer) / ASU Library. Music Library (Publisher)
Created2007-04-26
ContributorsLyne, Gregory K. (Performer) / Stutzman, Gina (Performer) / Woodgate, Lyn (Performer) / Cornner, Charles B. (Performer) / Rozukalns, Andris L. (Performer) / Women's Choir (Performer) / University Choir (Performer) / ASU Library. Music Library (Publisher)
Created1996-11-24
ContributorsCherland, Carl (Performer) / Fuller, Charles L. (Performer) / O'Brien, Robert (Performer) / Hooper, Wm. John (Performer) / Graduate Chorale (Performer) / Recital Chorale (Performer) / ASU Library. Music Library (Publisher)
Created1987-10-01
ContributorsRoueche, Michelle (Performer) / Partin, Darrell (Performer) / Wiest-Parthun, Karen (Performer) / Harvison, Emery (Performer) / Hernandez, Rene (Performer) / Foley, Laura (Performer) / Women's Choir (Performer) / ASU Library. Music Library (Publisher)
Created1994-04-21
ContributorsParthun, Karen (Conductor) / Hickman, Miriam, 1955- (Performer) / University Choir (Performer) / Vocal Jazz Ensemble (Performer) / ASU Library. Music Library (Publisher)
Created2000-11-19
ContributorsPeterson, Craig C. (Director) / Butler, Robb (Director) / Forkner, Christina (Contributor) / Leman, Christi (Performer) / Miller, Kenny (Musician) (Performer) / Howard, Johnothon (Performer) / Gibson, Ted (Performer) / Herberger Singers (Performer) / University Choir (Performer) / ASU Library. Music Library (Publisher)
Created2003-10-12