• This article systematically evaluated the expression of m1A in RNA by retrieving and screening relevant literature to elucidate the relationship between m1A and cancer development. • m1A is a post-transcriptional modification found in cellular and mitochondrial mRNAs and plays a crucial role in the pathogenesis of human diseases. • The findings of this article indicated that m1A has potential as a valuable biomarker for assisting in cancer prognosis and diagnosis assessment. The role of m1A as a novel biomarker is gaining increasing attention in the context of cancer. Our study aims to systematically evaluate the prognostic and diagnostic value of m1A in various cancers. A literature search was conducted using keywords such as "m(1)A-methylase" and "cancer" across Cochrane Library, Embase, PubMed and Web of Science. Literature was screened for inclusion based on predefined criteria and quality assessment was performed on the selected studies. Data pertinent to our analysis were extracted, and Stata 14.0 software was employed to generate forest plots, funnel plots, and conduct sensitivity, heterogeneity analyses, among others, to assess the prognostic and diagnostic significance of m1A in different cancer types. This meta-analysis encompassed 14 studies, with 4 focusing on diagnosis and 10 on prognosis. For diagnostic performance, the pooled sensitivity and specificity were 0.82 and 0.72, respectively. The combined positive likelihood ratio (PLR) and negative likelihood ratio (NLR) were 2.93 and 0.25, respectively, with a diagnostic odds ratio (DOR) of 11.75 and an area under the curve (AUC) of 0.85. In terms of prognosis, analysis of factors regulating m1A revealed that high expression of the writer enzymes negatively impacted overall survival (OS), with a hazard ratio (HR) of 1.31 (95% CI: 1.16-1.48, P < 0.001). Notably, higher expression of the regulatory factors TRMT6 (HR: 1.39, 95% CI: 1.14-1.69, P < 0.001) and TRMT10C (HR: 1.35, 95% CI: 1.01-1.81, P < 0.005) showed a more pronounced adverse effect on OS. No significant correlations were observed between other writers or erasers and the OS of cancer patients. Findings suggest that elevated expression of TRMT6 and TRMT10C may be indicative of poor prognosis. Furthermore, the diagnostic and prognostic data analysis implies that m1A has potential as a valuable biomarker for both diagnosing and predicting the prognosis of cancer. These results underscore the need for further investigation into m1A and its modifying enzymes in the clinical management of cancer.
Luo et al. (Sun,) studied this question.