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Colorectal Cancer - Astrophysics Data System

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Last Updated: 19 January 2023

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Highly efficient tumor-targeted nanomedicine assembled from affibody-drug conjugate for colorectal cancer therapy

Affibody is a new class of small non-immunoglobulin affinity proteins that have a strong similarity at the picomole level to several tumor overexpressed receptors. The nanoscale characteristics of Z PDGFRu03B2:09591 mm3-05591 affibody-drug conjugate nanomedicine resulted in improved pharmacokinetics, increased drug storage, and improved biosecurity results, which were greater than those of free drugs, as shown by enhanced pharmacokinetics, improved drug delivery, and improved biosecurity performance. MADACN's PDGFRu03b2:09591 -MADCN displayed excellent antitumor inhibitor activity in PDGFRu03b2-positive tumor models with small solid tumors or large established tumors, indicating that Z PDGFRu03b2:09591 -MMAE ADCN is targeting the clinic application of colorectal cancer therapy.

Source link: https://ui.adsabs.harvard.edu/abs/2022NaRes.tmp.1285Y/abstract


Identification of chemosensitizing agents of colorectal cancer in Rauvolfia vomitoria using an NMR-based chemometric approach

It's extremely urgent to search for new adjuvants of conventional chemotherapeutic therapies against colorectal cancer cells. In current research, a non-targeted analytical strategy was developed by combining proton nuclear magnetic resonance spectroscopy with a chemometrics data mining device to identify chemosensitizing agents from Rauvolfia vomitoria. This tactic was validated by its application to a Rauvolfia vomitoria extract that showed chemosensitizing activity against colorectal cancer cells. At least 15 signals could have played a role in the differentiation of different fractions after the workflow, according to the biochemistry report. To confirm the results of the campaign, the effects of 5-FU and other compounds isolated from fraction seven incubation on HCT-8 and LoVo cell viability were determined. These findings showed that compound u03b2-carboline, 1-methyl-u03b2-carboline, and lochnerine, as well as lochnerine, may have an effect on 5-fluorouracil's cytotoxicity against to Colorectal cancer cells. Besides, 21 compounds, two new compounds, were isolated from Rauvolfia vomitoria, including two new compounds.

Source link: https://ui.adsabs.harvard.edu/abs/2023FrCh...1069591C/abstract


Annexin A2 Enhances the Progression of Colorectal Cancer and Hepatocarcinoma via Cytoskeleton Structural Rearrangements

The RNAi technique was used to reduce the expression of ANXA2 in caco2 and SMMC7721 cells to investigate the role ANXA2 plays during tumor formation. Our findings showed that ANXA2 plays a significant role in preserving colorectal and hepatic cancer's malignancy by increasing cell proliferation, motility, and formation of tumor microstructures of cancer cells cultured on a potential cellular pathway.

Source link: https://ui.adsabs.harvard.edu/abs/2019MiMic..25..950H/abstract


A CAD System for Colorectal Cancer from WSI: A Clinically Validated Interpretable ML-based Prototype

Artificial Intelligence and Digital Pathology's integration has grown in the last decade. Applications of deep learning techniques to diagnose cancer from whole-slide images are, more than ever, a reality among various research groups. A comprehensive implementation of the model with a complete set of aspects of the model's implementation was performed in clinical trials; the creation of an enduring multi-vision scheme to capitalize on pathologists' domain expertise obtained by spatial annotations; and the establishment of an interpretable mixed-vision scheme to optimize the domain expertise obtained by pathologists through spatial annotations; and the creation of a comprehensive colorectal samples database that reduced the calculation cost by a factor of almost 6x.

Source link: https://ui.adsabs.harvard.edu/abs/2023arXiv230102608N/abstract


Home-based, supervised, and mixed exercise intervention on functional capacity and quality of life of colorectal cancer patients: a meta-analysis

The effects of home-based, controlled, or mixed exercise interventions on colorectal cancer patients' functional performance and quality of life were tested in this systematic review and meta-analysis. Of the 1161 screened studies in the initial analysis, 13 studies met the eligibility criteria. Improved CRC patients''s quality of life and FC are by a sensitivity analysis based on experiments with intervention adherence u2265 80% revealed that home-based intervention or surveillance with no supervision whatsoever is cost-effective in improving the QoL and FC of CRC patients. When intervention adherence is at 80%, this meta-analysis showed that managed and home-based exercise would improve QoL and FC. Regardless of the supervision methods, prospective RCTs are strongly encouraged to provide a detailed account of the exercise variables involved in CRC prescription. Patients with CRC will have a more tailored exercise regimen, mainly due to their medical condition.

Source link: https://ui.adsabs.harvard.edu/abs/2022NatSR..12.2471K/abstract


Different hotspot p53 mutants exert distinct phenotypes and predict outcome of colorectal cancer patients

In about half of all colorectal cancer cases, the TP53 gene is mutated. Over 20% of all TP53-mutated CRC tumors show missense mutations at position R175 or R273. Here we show that CRC tumors carrying R273 mutations are more likely to develop metastatic disease, with reduced incidence, than those with R175 mutations. Consequently, several TP53 missense mutations contribute differently to cancer progression. Elucidation of the varying effects of distinct TP53 mutations on disease features may make TP53 mutational information more accessible, as well as improved precision-based medicine.

Source link: https://ui.adsabs.harvard.edu/abs/2022NatCo..13.2800H/abstract


Differential expression analysis of genes and long non-coding RNAs associated with KRAS mutation in colorectal cancer cells

An oncogenic signature in mtKRAS was revealed by an overrepresentation of KRAS signaling as an oncogenic signature. Through analyzing PPI network, significant hub genes were found, with the highest node degree for PTPRC. The study of co-expressed DEGs and lncRNAs revealed 12 differently-expressed lncRNAs, which could potentially control the genes that are highly enriched in Rap1 and RAS signaling pathways. In mtKRAS cells, the overexpression of PPARG and PTGS2 was found, as well as downregulation of PTPRC in comparison to the wtKRAS one, which reported the results of RNA-seq analysis's outputs. MiR-23b gene expression in wtKRAS cells was also shown. The comparison of hub gene expression and TF expression results of CRC tissue samples obtained in the TCGA databank revealed them as distinct biomarkers for the discrimination of normal and tumor patient samples.

Source link: https://ui.adsabs.harvard.edu/abs/2022NatSR..12.7965S/abstract


Interactions between folate intake and genetic predictors of gene expression levels associated with colorectal cancer risk

Higher folate intake has been shown to be correlated with reduced risk of colorectal cancer in observational studies. Understanding whether and how genetic risk factors interact with folate could help to clarify the underlying mechanism. Aggregating functionally relevant genetic variants in set-based variant testing has a greater ability to identify gene-environment interactions and may include information about the underlying biological pathway. We investigated the relationship between folate intake and predicted gene expression on colorectal cancer risk across the genome. Before a set-based G u00d7 E approach, we used variant weights from the PrediXcan models of colon tissue-specific gene expression as a earliest variant study for a set-based G u00d7 E approach. Analyses were carried out using mixed effects score tests for correlations between folate and genetically predicted expression of 4839 genes with available genetically predicted expression. We discovered three genes involved in preventing or repairing DNA damage that can interact with folate intake to raise CRC risk.

Source link: https://ui.adsabs.harvard.edu/abs/2022NatSR..1218852H/abstract


PUMILIO proteins promote colorectal cancer growth via suppressing p21

Pum1 and Pum2 are also elevated in human colorectal cancer growth, according to here. In human CRC cells, knockdown or knockdown of Pum1 and/or Pum2 results in a significant decline in tumorigenesis and delayed G1/S transition, which is observed. The PUM1 binding site in the p21 mRNA's reduced cancer cell proliferation and delayed G1/S transition are both reduced, as well as delayed G1/S transition. In addition, intravenous injection of nanoparticle-encapsulated anti-Pum1 and Pum2 siRNAs reduces colorectal tumor formation in murine orthotopic colon cancer models.

Source link: https://ui.adsabs.harvard.edu/abs/2022NatCo..13.1627G/abstract


Characteristics of circulating adaptive immune cells in patients with colorectal cancer

By attacking and killing tumor cells, adaptive immune cells can prevent solid tumor formation. Nevertheless, there are no comprehensive studies into peripheral circulating adaptive immune cell characterization in colorectal cancer patients or the effect of tumor-node-metastasis stages on these cells. Advanced-stage CRC patients had increased incidences of CD8 + naive T cells with increased proliferative capability and CD8 + central memory T cells with immune surveillance function, relative to early-stage CRC patients.

Source link: https://ui.adsabs.harvard.edu/abs/2022NatSR..1218166Z/abstract

* 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