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Background Gastrointestinal (GI) cancers are among the most prevalent and lethal malignancies worldwide. Early, non-invasive detection is essential for timely intervention and improved survival. To address this clinical need, we developed GutSeer, a blood-based assay combining DNA methylation and fragmentomics for multi-GI cancer detection. Methods Genome-wide methylome profiling identified 1,656 markers specific to five major GI cancers and their tissue origins. Based on these findings, we designed GutSeer, a targeted bisulfite sequencing panel, which was trained and validated using plasma samples from 1,057 cancer patients and 1,415 non-cancer controls. The locked model was blindly tested in an independent cohort of 846 participants, encompassing both inpatient and outpatient settings across five hospitals. Results In the validation cohort, GutSeer achieved an area under the curve (AUC) of 0.950 [95% Confidence Interval (CI): 0.937–0.962] for cancer detection, with 82.8% sensitivity (95% CI: 79.5–86.0) and 95.8% specificity (95% CI: 94.3–97.2). It detected 92.2% of colorectal, 75.5% of esophageal, 65.3% of gastric, 92.9% of liver, and 88.6% of pancreatic cancers. The independent test cohort included 198 early-stage cancers (stage I/II, 66.4%) and 63 advanced precancerous lesions. GutSeer maintained robust performance, with 81.5% sensitivity (95% CI: 77.1–85.9) for GI cancers and 94.4% specificity (95% CI: 92.4–96.5). It also demonstrated the ability to detect advanced precancerous lesions in the colorectum, esophagus, and stomach as a single, non-invasive blood test. Conclusions By integrating DNA methylation and fragmentomics into a compact panel, GutSeer outperformed genome-wide sequencing in both accuracy and clinical applicability. Its high sensitivity for early-stage GI cancers and practicality as a non-invasive assay highlights its potential to revolutionize early cancer detection and improve patient outcomes. Trial registration ClinicalTrials.gov identifier: NCT05431621.

This paper first probes into information-based entrepreneurship related theory. Secondly, studied the information-based entrepreneurship related areas to promote the development of strategic emerging industries. Finally, summed up the research conclusion: the development of information technology to the development of information-based entrepreneurship to create a good environment; Under the background of strategic emerging industries information-based entrepreneurship is becoming a new hot spot; Be badly in need of information the pioneering theory to guide practice in our country.

胆道系统恶性肿瘤起病隐匿、发展迅速，大多患者初诊时已丧失手术根治机会，预后不良。以吉西他滨为基础的化疗是胆道系统恶性肿瘤的一线治疗，但效果有限。二代测序技术的进步为胆道系统恶性肿瘤精准治疗提供了可能性，但靶点阳性率低及治疗药物可及性差限制了胆道系统恶性肿瘤精准治疗的应用和发展。以免疫检查点抑制剂程序性死亡受体及其配体单抗为代表的免疫治疗时代的到来，为恶性肿瘤包括胆道系统恶性肿瘤治疗提供了令人鼓舞的前景。以免疫检查点抑制剂为基础的联合化疗和/或靶向治疗已经在胆道系统恶性肿瘤治疗中显现良好的效果，是未来晚期胆道系统恶性肿瘤治疗的方向。