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Objective: The aim of this study was to determine whether the volatile organic compounds (VOCs) pattern in colorectal cancer (CRC) patients is modified by curative surgery for a potential application in the oncologic follow-up.
Background: CRC has been proved to induce metabolic derangements detectable by high through-output techniques in exhaled breath showing a specific pattern of VOCs.
Methods: Forty-eight CRC patients and 55 healthy controls (HC) entered the study. Thirty-two patients (M/F: 1.4; mean age 63 years) attended the oncologic follow-up (mean 24 months) and were found disease-free. Breath samples were collected under similar environmental conditions into a Tedlar bags and processed offline by thermal-desorption gas chromatography-mass spectrometry (TD-GC-MS). VOCs were selected by U test to build a Probabilistic Neural Network (PNN) model to set-up a training phase, which was cross-validated using the leave-one out method.
Results: A total of 11 VOCs were finally selected for their excellent discriminant performance in identifying disease-free patients in follow-up from CRC patients before surgery, (sensitivity 100%, specificity 97.92%, accuracy 98.75%, and AUC: 1). The same VOCs pattern discriminated follow-up patients from HC, with a sensitivity of 100%, specificity of 90.91%, accuracy of 94.25%, and AUC 0.959.
Conclusions: Exhaled VOCs pattern from CRC patients is modified by cancer removal confirming the tight relationship between tumor metabolism and exhaled VOCs. PNN analysis provides a high discriminatory tool to identify patients disease-free after curative surgery suggesting potential implications in CRC screening and secondary prevention.
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http://dx.doi.org/10.1097/SLA.0000000000001471 | DOI Listing |
Bull Cancer
September 2025
Endocrinologie diabétologie et gynécologie pédiatrique, hôpital des Enfants, CHU de Bordeaux, Bordeaux, France.
The harmonization workshops of the leukemia committee of the Société française des cancers de l'enfant (SFCE) aim to establish practical recommendations based on the one hand, on data from the literature and international recommendations and, on the other hand, by consensus in the absence of formally proven data. Adolescent pubescent girls and young adults undergoing intensive chemotherapy treatment may present with heavy uterine bleeding (HUB). Data collected from 25 French centers showed that there was considerable heterogeneity in the management of HUB either in prophylaxis or curative strategy.
View Article and Find Full Text PDFExp Cell Res
September 2025
Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Gastrointestinal Cancer Center, Peking University Cancer Hospital and Institute, Beijing, China. Electronic address:
Background: Enteric glial cells (EGCs) have been implicated in colorectal cancer (CRC) progression. This study aimed to develop and validate a prognostic model integrating EGC- and CRC-associated gene expression to predict patient survival, recurrence, metastasis, and therapy response.
Methods: Bulk and single-cell RNA sequencing data were analyzed, and a machine learning-based model was constructed using the RSF random forest algorithm.
J Adv Res
September 2025
Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Education City, Qatar Foundation, Doha P.O. Box 24144, Qatar. Electronic address:
Background: Studies on the interaction of cancer cells with other cells (fibroblasts, endothelial cells, and immune cells) of the tumor microenvironment (TME) have led to the development of many novel targeted therapies. More recently, the notion that neuronal cells of the TME could impact various processes supporting cancer progression has gained momentum. Tumor-associated neurons release neurotransmitters into the TME that, in turn, bind to specific receptors on different target cells, supporting cancer progression.
View Article and Find Full Text PDFEur J Radiol
August 2025
Unità Operativa di Radiologia, ASST Fatebenefratelli Sacco, L. Sacco University Hospital, Milan, Italy. Electronic address:
Inflammatory bowel disease (IBD), including Crohn's disease (CD) and Ulcerative Colitis (UC), is characterized by chronic inflammation of the gastrointestinal tract, and its long-standing course significantly elevates the risk of colorectal cancer (CRC), primarily arising from dysplastic lesions. While regular surveillance by colonoscopy is well established for UC patients, guidelines for CD remain uncertain. Computed Tomographic Colonography (CTC) offers a minimally invasive alternative for evaluating the colon, particularly in cases where colonoscopy is incomplete or contraindicated.
View Article and Find Full Text PDFPathol Res Pract
September 2025
Department of Pharmaceutical Sciences, College of Pharmacy, King Saud Bin Abdulaziz University for Health Sciences, Riyadh 11451, Saudi Arabia; King Abdullah International Medical Research Center (KAIMRC), Riyadh, Saudi Arabia; King Abdulaziz Medical City, National Guard Health Affairs (NGHA), Riyad
Colorectal cancer (CRC) is a significant global health concern, including in Saudi Arabia, where its incidence has increased in recent years. It contributes substantially to cancer-related morbidity and mortality, both regionally and worldwide. Recent advancements in genetic and epigenomic data, along with the use of biomarkers, have enhanced the potential for early diagnosis, effective treatment, and monitoring of CRC.
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