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Specific Targeting and Labeling of Colonic Polyps in CPC-APC Mice with Mucin 5AC Fluorescent Antibodies: A Model for Detection of Early Colon Cancer

Authors :
Michael A. Turner
Kristin E. Cox
Shanglei Liu
Nicholas Neel
Siamak Amirfakhri
Hiroto Nishino
Mojgan Hosseini
Joshua A. Alcantara
Amer Ali Abd El-Hafeez
Thinzar M. Lwin
Kavita Mallya
Joseph R. Pisegna
Satish K. Singh
Pradipta Ghosh
Robert M. Hoffman
Surinder K. Batra
Michael Bouvet
Source :
Current Issues in Molecular Biology, Vol 45, Iss 4, Pp 3347-3358 (2023)
Publication Year :
2023
Publisher :
MDPI AG, 2023.

Abstract

Poor visualization of polyps can limit colorectal cancer screening. Fluorescent antibodies to mucin5AC (MUC5AC), a glycoprotein upregulated in adenomas and colorectal cancer, could improve screening colonoscopy polyp detection rate. Adenomatous polyposis coli flox mice with a Cdx2-Cre transgene (CPC-APC) develop colonic polyps that contain both dysplastic and malignant tissue. Mice received MUC5AC-IR800 or IRdye800 as a control IV and were sacrificed after 48 h for near-infrared imaging of their colons. A polyp-to-background ratio (PBR) was calculated for each polyp by dividing the mean fluorescence intensity of the polyp by the mean fluorescence intensity of the background tissue. The mean 25 μg PBR was 1.70 (±0.56); the mean 50 μg PBR was 2.64 (±0.97); the mean 100 μg PBR was 3.32 (±1.33); and the mean 150 μg PBR was 3.38 (±0.87). The mean PBR of the dye-only control was 2.22 (±1.02), significantly less than the 150 μg arm (p-value 0.008). The present study demonstrates the ability of fluorescent anti-MUC5AC antibodies to specifically target and label colonic polyps containing high-grade dysplasia and intramucosal adenocarcinoma in CPC-APC mice. This technology can potentially improve the detection rate and decrease the miss rate of advanced colonic neoplasia and early cancer at colonoscopy.

Details

Language :
English
ISSN :
14673045 and 14673037
Volume :
45
Issue :
4
Database :
Directory of Open Access Journals
Journal :
Current Issues in Molecular Biology
Publication Type :
Academic Journal
Accession number :
edsdoj.0a7999883a40427280a4ee5a75ae457b
Document Type :
article
Full Text :
https://doi.org/10.3390/cimb45040219