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Colorectal Cancer - DOAJ

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Last Updated: 19 July 2022

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Comparing miR-16 and miR-1228 as an optimal endogenous control for quantification of circulating microRNAs in colorectal cancer patients

In plasma samples of colorectal cancer, the effects of normalizers were also investigated. To determine the expression levels of circulating miRNAs in plasma samples of 4 healthy controls and 14 CRC patients, quantitative real-time polymerase chain reaction techniques was used. MiR-16 and miR-1228 expression levels in the healthy control group and CRC patient groups' before or after therapy. Compared to those in miR-16, the expression of miR-1228 endogenous reference candidate has lower stability value and lower range Ct values. When miR-1228 was used to standardize miR-31 expression, there are significant differences in circulating miR-31 expression between healthy control and CRC patients. MiR-1228 has been regarded as a more effective endogenous measure of circulating miRNAs in CRC patients as a better endogenous measure.

Source link: https://doi.org/10.4103/tcmj.tcmj_240_21


Identification of the prognostic signature based on genomic instability-related alternative splicing in colorectal cancer and its regulatory network

Methods: The role of genomic instability-related AS events in CRC has not been investigated by the Cancer Genome Atlas project, however, the splicing profiles, single nucleotide polymorphism, transcriptomics, and clinical details of CRC have yet to be investigated. In Caco2 cells, the effects of SF monitoring prognostic AS events in proliferation and migration were established. Patients in the high risk score group had a higher incidence of somatic mutations. With a risk score of 1. 537, the genomic instability risk score was an independent predictor of overall survival. The OS of CRC patients was 0. 733, which was within the curve of receiver operator characteristic curve of the genomic instability risk score in predicting the survival rate of CRC patients. Patients identified as high risk by this indicator had a smaller number of eosinophils per patient than the low risk group. Patients with low risk of infection were more sensitive to anti-CTLA4 immunotherapy, as opposed to anti-CTLA4 immunotherapy.

Source link: https://doi.org/10.3389/fbioe.2022.841034


Fecal microbiota and bile acids in IBD patients undergoing screening for colorectal cancer

We wanted to see if these factors were related to colorectal cancer in IBD patients due to the fact that the gut microbiota and bile acids can play a role in both inflammatory bowel disease and sporadic colorectal cancer. Between September 2011 and July 2018, ten French IBD patients and 51 non-IBD control patients were recruited from ten French IBD centers, including 215 IBD patients and 51 non-IBD control subjects. IBD patients with median age of 41. 6; median sclerosing cholangitis; 21. 9% primary sclerosing cholangitis; 109 patients with Crohn's disease; 106 patients with ulcerative colitis; 47% female; 28. 9% primary sclerosing cholangitis; 47% female; 31. 9% primary sclerosing cholangitis; Bile acids were not related to cancer or neoplasia. In three clusters compared to the third, three gut microbiota clusters in IBD patients with bile acid composition and clinical characteristics, including a higher risk of neoplasia in UC in two clusters, were found in unsupervised clustering, with a higher risk of neoplasia in IBD patients with bile acid composition and clinical characteristics, including a higher risk of neoplasia in UC patients with compared to the third compared to the third compared to the third compared to the third compared to the third comparing the third compared to the third compared to the compared to the third compared to clusters in ne versus in two clusters compared to the third compared to the third compared to the third compared to the third compared to the third compared to the third compared to the third compared to the third ne o heta uta ne neta versus to the grafta compared to the third heta in gastrointestinal.

Source link: https://doi.org/10.1080/19490976.2022.2078620


Ability of known colorectal cancer susceptibility SNPs to predict colorectal cancer risk: A cohort study within the UK Biobank.

Using a prospective population-based cohort within the UK Biobank, we investigated adding a polygenic risk score based on 45 single-nucleotide polymorphisms to a family history model to see how it enhances the stratification and discriminatory results of 10-year risk and full lifetime risk. The combined risk model's top and bottom risk quintiles demonstrated a larger risk distribution for both 10-year and full lifetime risk than family history alone, resulting in improved risk stratification of almost 2-fold between the full lifetime risk model's top and bottom risk quintiles. 0. 67 versus 0. 666 versus 0. 0065, p = 0. 0065. We also showed that the combined lifetime risk model dramatically increases discriminatory accuracy in comparison to a simple family history model, which is also shown by pp. 0. 0065. According, a combined polygenic risk score and first-degree family history questionnaire could be used to enhance risk stratified population screening services.

Source link: https://doi.org/10.1371/journal.pone.0251469


Silencing LncRNA CASC9 inhibits proliferation and invasion of colorectal cancer cells by MiR-542-3p/ILK.

Colorectal cancer is the third in cancers and the second in the reasons of cancer-related suicide. In CRC, it is known that cancer susceptibility candidate 9 is an oncogenic long non-coding RNA. However, the connection between long-coding RNA tumor susceptibility treatment product 9, miR-542-3p and integrin-linked kinase in CRC is also uncertain. We introduced a long-coding RNA cancer susceptibility candidate 9 in CRC samples and cell lines that were overexpressed by real-time quantitative polymerase chain reaction. Long non-coding RNA cancer susceptibility candidate 9 negatively controls miR-542-3p in a targeted manner, and up-regulated miR-542-3p's function was confirmed similarly. By miR-542-3p/integrin-linked kinase, this research showed that silencing long-coding RNA cancer susceptibility candidate 9 could prevent proliferation and invasion of CRC cells.

Source link: https://doi.org/10.1371/journal.pone.0265901


The global, regional, and national burden and quality of care index (QCI) of colorectal cancer; a global burden of disease systematic analysis 1990-2019.

Background Colorectal cancer is one of the five most common cause and lethal cancers in the world, with different nations and sexes affecting cancer incidences and sexes. CRC care quality of care is determined by gender and location, with the intention of releasing a comprehensive report titled the quality of care index to assess the inequity and healthcare quality of care regarding CRC. Methods The Global Burden of Disease report 2019 contains statistics on the prevalence of CRC. Principal component analysis was conducted on the four ratios, and the most significant component, QCI, was rated from zero to 100, for which improved quality of care was reported. The gender disparity Ratio was calculated by dividing QCI for females by males, dividing it by males. There was a positive correlation between the standard of care and socio-demographic index quintiles, which showed a positive correlation. According to QCI results, the Americas and African Region had the highest and lowest QCI values.

Source link: https://doi.org/10.1371/journal.pone.0263403


Comparative molecular genomic analyses of a spontaneous rhesus macaque model of mismatch repair-deficient colorectal cancer.

Colorectal cancer is the third most common cancer in the United States, with 15% of cases displaying Microsatellite Instability secondary to Lynch Syndrome or somatic hypermethylation of the MLH1 promoter. Our aim was to provide a detailed molecular characterization of rhesus CRC for cross-comparison with human MMRd CRC. Overall, the bulk of rhesus tumors had high amounts of MSI and differential gene expression that were consistent with known deregulated pathways in human CRC. Among sporadic MSI-H, MSI-L/MSS, and LS tumors with MLH1 predominantly inactivated among sporadic MSI-H CRCs, differentially methylated patterns were found by DNA methylation analysis, revealing remarkably methylated patterns among MSI-H, MSI-L/MSS, and LS tumors with MLH1 predominant inactivated among sporadic MSI-H CRCs The results from this research show that rhesus macaques as an alternative animal model to mice to investigate carcinogenesis, design immunotherapies, and vaccines, as well as implement chemoprevention strategies relevant to human sporadic MSI-H and LS CRC.

Source link: https://doi.org/10.1371/journal.pgen.1010163


Abdomen anatomic characteristics on CT scans as predictive markers for short-term complications following radical resection of colorectal cancer

ResultsUnivariate analysis revealed that preoperative white blood cells, preoperative neutrophil counts, rectus abdominis thickness, subcutaneous fat thickness, and abdomen depth were all significantly different between the complication group and non-complication group. paraphrasedoutput:Conclusions: Patients undergoing radical colorectal cancer, abdomen anatomic abnormalities, such as elevated RAT, SFT, and AD are prone to short-term postoperative complications, according to this study. Higher RAT, SFT, and AD were found independently, with an elevated risk of short-term postoperative complications.

Source link: https://doi.org/10.3389/fsurg.2022.899179


Integrated analysis of the functions and clinical implications of exosome circRNAs in colorectal cancer

BackgroundExosome circRNAs control tumor progression and intercellular crosstalk in tumor microenvironment. However, we did not know about Exo-circRNAs in CRC patients and healthy individuals, despite their biological functions and potential clinical relevance in colorectal cancer. MethodsWe used exoRBase 2. 0 results to find significant differentially expressed Exo-circRNAs in CRC patients and healthy people. Using CIBERSORT, we discovered 22 immune cell types in CRC patients. The connection between Exo-ceRNA networks and immune-infiltrating cells was found by Correlation analysis. Target mRNAs can also be investigated in connection with immunotherapeutic reactions. Results We constructed a survival-related Exo-ceRNA subnetwork and investigated the correlation between the Exo-ceRNA subnetwork and immune-infiltrating cells in both the training and validation sets, revealing a large region under the curve. paraphrasedoutput:ConclusionsM2 macrophages were correlated with Exo-ceRNA networks, which established Exo-ceRNA networks, and investigated the relationship between Exo-ceRNA networks and immune cell infiltration in CRC.

Source link: https://doi.org/10.3389/fimmu.2022.919014


Chemotherapy-induced functional brain abnormality in colorectal cancer patients: a resting‐state functional magnetic resonance imaging study

Results The association of impaired brain function and cognitive function in the left anterior cingulate gyrus and middle frontal gyrus, as well as increased fALFF values in the left superior frontal gyrus and middle occipital gyrus were also investigated. Moreover, positive correlations were found between the left ACG's fALFF values and the patient's total scores of MMSE, MoCA, and FACT-Cog, which may be vulnerable to the toxicity of chemotherapy-induced cognitive impairment.

Source link: https://doi.org/10.3389/fonc.2022.900855

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions