Evaluation of a liquid biopsy protocol using ultra-deep massive parallel sequencing for detecting and quantifying circulation tumor DNA in colorectal cancer patients.

Evaluation of a liquid biopsy protocol using ultra-deep massive parallel sequencing for detecting and quantifying circulation tumor DNA in colorectal cancer patients. Cancer Invest. 2020 Jan 15;:1-21 Authors: Nguyen HT, Tran DH, Ngo QD, Pham HT, Tran TT, Tran VU, Pham TN, Le TK, Le NT, Nguyen NM, Vo BT, Nguyen LT, Nguyen TV, Bui QTN, Nguyen HN, Le LGH, Do DM, Do TT, Truong Dinh K, Phan MD, Tran LS, Giang H, Nguyen HN Abstract The identification and quantification of actionable mutations are critical for guiding targeted therapy and monitoring drug response in colorectal cancer. Liquid biopsy (LB) based on plasma cell-free DNA analysis has emerged as a non-invasive approach with many clinical advantages over conventional tissue sampling. Here, we developed a LB protocol using ultra-deep massive parallel sequencing and validated its clinical performance for detection and quantification of actionable mutations in three major driver genes (KRAS, NRAS and BRAF). The assay showed a 92% concordance for mutation detection between plasma and paired tissues and great reliability in quantification of variant allele frequency. PMID: 31939681 [PubMed - as supplied by publisher]
Source: Cancer Investigation - Category: Cancer & Oncology Tags: Cancer Invest Source Type: research

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Authors: Cao M, Zhou M, Zhang J Abstract Patients with metastatic colorectal cancer (mCRC) beyond second line treatment have a poor prognosis. Regorafenib, TAS-102, fruquintinib, panitumumab and cetuximab are recommended single-agent chemotherapy regimens for patients exhibiting disease progression, this meta-analysis aimed to evaluate the efficacy and safety of these regimens in randomized controlled trials (RCTs). Eight RCTs with 3,832 cancer patients were included. Results showed that there was no significant difference in OS and PFS among the four drugs when comparing all patients or patients who have the KRAS ...
Source: Journal of Chemotherapy - Category: Cancer & Oncology Tags: J Chemother Source Type: research
In this study, dosimeters were used to measure the testicular dose with and without testicular shielding to verify the effect of shielding. Anthropomorphic phantoms representing a human were used to estimate the doses absorbed in testicular and whole-body studies. The anthropomorphic phantom was irradiated according to the treatment protocol for colorectal cancer. Measurements were made using optically-stimulated luminescent dosimeters (OSLDs), composed of carbon-doped aluminum oxide, with characteristics suitable for radiotherapy dosimetry studies. A set of OSLDs was placed on a testicular phantom, attached to the lower e...
Source: Radiation Physics and Chemistry - Category: Physics Source Type: research
Conclusion: Cytokine-induced killer cell immunotherapy combined with first-line chemotherapy could significantly improve the OS and PFS of patients with mCRC, particularly for patients with metastatic colon cancer. PMID: 32076550 [PubMed]
Source: Clinical Colorectal Cancer - Category: Cancer & Oncology Authors: Tags: Clin Transl Immunology Source Type: research
Authors: Shiroma PR, Velasquez T, Usset TJ, Wilhelm JH, Thuras P, Baltutis E Abstract INTRODUCTION: Obesity is prevalent among users of Veteran's Health Administration services, where it is comorbid with depression, post-traumatic stress disorder, type 2 diabetes, cardiovascular disease, colon, and breast cancer. Among obese subjects, severe obesity represents a subpopulation with the highest risk of depression. We investigate the antidepressant effect of a local VA weight management program (Managing Overweight Veterans Everywhere - MOVE) among depressed veterans with severe obesity. MATERIAL AND METHODS: In a...
Source: Military Medicine - Category: International Medicine & Public Health Tags: Mil Med Source Type: research
Conclusions: Preoperative blood transfusion is associated with severe postoperative complications following colectomy in moderate and severe anemic cancer patients. Further studies are needed to establish an optimal preoperative transfusional cutoff value to optimize postoperative outcomes and balance clinical costs. PMID: 32075458 [PubMed - as supplied by publisher]
Source: Journal of Investigative Surgery - Category: Surgery Tags: J Invest Surg Source Type: research
In conclusion, our findings widen the genotypic spectrum of MLH1 mutations responsible for LS. This study increases the phenotypic spectrum of LS which will certainly help the clinicians in diagnosing LS in multigeneration families. This study also puts emphasis on the importance of genetic counselling for the benefit of asymptomatic carriers of MMR gene variants who are at higher risk of LS. PMID: 32076465 [PubMed - in process]
Source: Disease Markers - Category: Laboratory Medicine Tags: Dis Markers Source Type: research
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Source: Disease Markers - Category: Laboratory Medicine Tags: Dis Markers Source Type: research
This article describes our thoughts on, and first experience with the development and implementation of an alternative, remote follow-up plan for colorectal cancer patients. Within remote follow-up, patients have access to test results, and are supported with self-management information. They have access to telemedicine applications such as video-consultation, text messaging, and telephone services to contact their physician and nurse practitioner. Routine outpatient clinical visits are abandoned. Currently, 66 patients are being followed remotely. Application of telemedicine within cancer follow-up has several advantages....
Source: European Journal of Surgical Oncology (EJSO) - Category: Surgery Source Type: research
ConclusionUsing the obstruction protocol in patients with bowel obstruction reduced emergency surgery and postoperative morbidity and mortality in this pilot study. This protocol seems to be a viable and efficient alternative to emergency surgery.
Source: European Journal of Surgical Oncology (EJSO) - Category: Surgery Source Type: research
Publication date: March 2020Source: European Journal of Surgical Oncology, Volume 46, Issue 3Author(s): Sara Hägg, Juulia JylhäväAbstractColorectal cancer (CRC) is a chronic disease of the old population with slow development progressing into clinical signs and symptoms. Biological aging is characterized by e.g. mitochondrial dysfunction and epigenetic alterations (e.g. methylation) - mechanisms that are also important in cancer development. For CRC, specific types of tumors are distinguishable by their methylation patterns and several detection methods using different epigenetic marks have been developed as...
Source: European Journal of Surgical Oncology (EJSO) - Category: Surgery Source Type: research
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