SynthesisJournal of gastrointestinal cancer2026
Tumour-Associated Neutrophils in Colorectal Cancer: a Systematic Review, Meta-analysis, and Comprehensive Literature Review.
Synthesis in Journal of gastrointestinal cancer, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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0 citing papers in PubMed.
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeNeutrophils are at the forefront of innate immune response. The prognostic impact of tumour-associated neutrophils (TANs) remains unclear. This study aimed to evaluate the prognostic role of TANs in colorectal cancer (CRC).
methodsA systematic review and meta-analysis were conducted using PubMed, Embase, and Scopus to identify studies correlating TANs with time-to-event survival analysis in patients with stages I-IV CRC from the date of inception until April 2024. Articles were included if they involved the identification of TANs through hematoxylin-eosin (HE) or immunohistochemistry (IHC) and reported survival analysis. Data was collected from the tumour core (TC) and invasive margin (IM). The hazard ratios (HRs) were extracted from the study results. Heterogeneity was evaluated using Cochran's Q and I². Primary and secondary endpoints were overall survival (OS) and disease-free survival (DFS).
resultsOf 4,292 citations found, 18 studies fulfilled eligibility criteria, encompassing 7,406 patients. IHC was used to identify TANs in 12 trials, while six performed HE. Five studies included patients with disease stages I-III, and 13 had stages I-IV. High TANs at the IM were associated with improved OS (HR = 0.64, 95% Confidence Interval [CI] 0.50-0.81, I
conclusionIn this systematic review and meta-analysis, high TANs at the invasive margin (IM), the tumour-host interface, was associated with improved prognosis in CRC. In contrast, no statistically significant association was observed for high TANs at the tumour core (TC).
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