Prediction of new targets and mechanisms for quercetin in the treatment of pancreatic cancer, colon cancer, and rectal cancer

Author(s): Bing Pang ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Xiaoguang Xu ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Yao Lu ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Han Jin ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Rongrong Yang ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Chunmei Jiang ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Dongyan Shao ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Yanlin Liu ⁶ ^, ⁷ ^, ⁸ ^, ⁵ , Junling Shi ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵

Publication date (Electronic): 2019

Journal: Food & Function

Publisher: Royal Society of Chemistry (RSC)

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Abstract

Quercetin has been widely found to exhibit anticancer activity with low toxicity and prevalence in foods.

Abstract

Quercetin has been widely found to exhibit anticancer activity with low toxicity and prevalence in foods. Quercetin has been reported to inhibit digestive system cancers including pancreatic cancer (PAAD) and colon cancer (COAD), but rectal cancer (READ) has not been reported. The reported mechanisms and targets are divergent. In this study, new targets and mechanisms were predicted for the influence of quercetin on PAAD, COAD, and READ using bioinformatics methods. The results showed that quercetin may target CD36 and reduce the death rate caused by PAAD by enhancing the cell adhesion, mediating the uptake of fatty acids (FAs), regulating thrombospondin-1, and stimulating the immune response. Quercetin may lower the death rate from READ by targeting SLCO1B1 and producing enhanced effects from use of this compound, inhibiting cell growth, and inducing apoptosis in tumor cells. ACADS, ALDH3B2, UGT2A3, AMH, CDKN2A, FOSL1, CD36, CFL2, CYP3A4, and MAF were identified as targets for quercetin to reduce the death rate caused by COAD. Glutathione metabolism was mainly involved in the effect of quercetin on COAD, including the enhancement of the oxidation of fatty acids, the metabolism of anticancer medications, and the stiffness of cells, and the reduction of chemical carcinogenesis, the level of anti-Müllerian hormone, the proliferation of cancer cells and transcriptional misregulation, and mediation of the activity of glutathione transferases. The combined analyses of three databases can be referred to and used to seek medications and targets that can be applied to other diseases.

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STRING v10: protein–protein interaction networks, integrated over the tree of life

Damian Szklarczyk, Andrea Franceschini, Stefan Wyder … (2014)

The many functional partnerships and interactions that occur between proteins are at the core of cellular processing and their systematic characterization helps to provide context in molecular systems biology. However, known and predicted interactions are scattered over multiple resources, and the available data exhibit notable differences in terms of quality and completeness. The STRING database (http://string-db.org) aims to provide a critical assessment and integration of protein–protein interactions, including direct (physical) as well as indirect (functional) associations. The new version 10.0 of STRING covers more than 2000 organisms, which has necessitated novel, scalable algorithms for transferring interaction information between organisms. For this purpose, we have introduced hierarchical and self-consistent orthology annotations for all interacting proteins, grouping the proteins into families at various levels of phylogenetic resolution. Further improvements in version 10.0 include a completely redesigned prediction pipeline for inferring protein–protein associations from co-expression data, an API interface for the R computing environment and improved statistical analysis for enrichment tests in user-provided networks.

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Colorectal cancer statistics, 2017.

Rebecca Siegel, Kimberly D Miller, Stacey Fedewa … (2017)

Colorectal cancer (CRC) is one of the most common malignancies in the United States. Every 3 years, the American Cancer Society provides an update of CRC incidence, survival, and mortality rates and trends. Incidence data through 2013 were provided by the Surveillance, Epidemiology, and End Results program, the National Program of Cancer Registries, and the North American Association of Central Cancer Registries. Mortality data through 2014 were provided by the National Center for Health Statistics. CRC incidence rates are highest in Alaska Natives and blacks and lowest in Asian/Pacific Islanders, and they are 30% to 40% higher in men than in women. Recent temporal patterns are generally similar by race and sex, but differ by age. Between 2000 and 2013, incidence rates in adults aged ≥50 years declined by 32%, with the drop largest for distal tumors in people aged ≥65 years (incidence rate ratio [IRR], 0.50; 95% confidence interval [95% CI], 0.48-0.52) and smallest for rectal tumors in ages 50 to 64 years (male IRR, 0.91; 95% CI, 0.85-0.96; female IRR, 1.00; 95% CI, 0.93-1.08). Overall CRC incidence in individuals ages ≥50 years declined from 2009 to 2013 in every state except Arkansas, with the decrease exceeding 5% annually in 7 states; however, rectal tumor incidence in those ages 50 to 64 years was stable in most states. Among adults aged <50 years, CRC incidence rates increased by 22% from 2000 to 2013, driven solely by tumors in the distal colon (IRR, 1.24; 95% CI, 1.13-1.35) and rectum (IRR, 1.22; 95% CI, 1.13-1.31). Similar to incidence patterns, CRC death rates decreased by 34% among individuals aged ≥50 years during 2000 through 2014, but increased by 13% in those aged <50 years. Progress against CRC can be accelerated by increasing initiation of screening at age 50 years (average risk) or earlier (eg, family history of CRC/advanced adenomas) and eliminating disparities in high-quality treatment. In addition, research is needed to elucidate causes for increasing CRC in young adults. CA Cancer J Clin 2017. © 2017 American Cancer Society. CA Cancer J Clin 2017;67:177-193. © 2017 American Cancer Society.