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. 2024 May;59(9):1033-1048.
doi: 10.1111/apt.17947. Epub 2024 Mar 27.

Systematic scoping review: Use of the faecal immunochemical test residual buffer to enhance colorectal cancer screening

Timothy McAuliffe  1 , Joseph C Anderson  1   2 , Robin J Larson  1   3 , Douglas J Robertson  1   2
Affiliations

Systematic scoping review: Use of the faecal immunochemical test residual buffer to enhance colorectal cancer screening

Timothy McAuliffe et al. Aliment Pharmacol Ther. 2024 May.

Abstract

Background: The faecal immunochemical test (FIT) is an inexpensive and convenient modality to screen for colorectal cancer. However, its one-time sensitivity for detecting colorectal cancer and cancer precursors is limited. There is growing interest in using the non-haemoglobin contents of FIT residual buffer to enhance colonic neoplasia detection.

Aim: To establish from the literature a framework to catalogue candidate biomarkers within FIT residual buffer for non-invasive colorectal cancer screening.

Methods: The search strategy evaluated PubMed, Scopus, Web of Science, Embase, and Google Scholar for publications through 25 October 2023, with search terms including FIT, buffer, OC-sensor, biomarkers, microbiome, microRNA (miR), colon, rectum, screening, neoplasm, and early detection. Studies employing home-based collection samples using quantitative FIT first processed for haemoglobin were included. One author reviewed all articles; a second author completed a 20% full-text audit to ensure adherence to eligibility criteria.

Results: A broad search yielded 1669 studies and application of eligibility criteria identified 18 relevant studies. Multiple protein, DNA/RNA, and microbiome biomarkers (notably haptoglobin, miR-16, miR-27a-3p, miR-92a, miR-148a-3p, miR-223, miR-421, let-7b-5p, and Tyzzerella 4) were associated with colorectal neoplasia. Furthermore, studies highlighted the short-term stability of biomarkers for clinical use and long-term stability for research purposes.

Conclusions: This scoping review summarises the framework and progress of research on stability of biomarkers in FIT residual buffer and their associations with colorectal neoplasia to guide opportunities for further confirmatory studies to enhance colorectal cancer screening.

Keywords: cancer – diagnosis; colorectal cancer; diagnostic tests; large intestine; microbiome; oncology – Diagnosis; screening.

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References

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