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Oncology/Anti-Cancer: Review

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A Review with a Focus on Vaccinium-Berries-Derived Bioactive Compounds for the Treatment of Reproductive Cancers

Posted
Authors
Alsharairi NA
Journal
Plants (Basel). 2024 Apr 8;13(7):1047. doi: 10.3390/plants13071047. PMID: 38611574; PMCID: PMC11013621
Abstract

Cancers of the reproductive organs, including prostate, bladder, ovarian, and cervical cancers, are considered the most common causes of death in both sexes worldwide. The genus Vaccinium L. (Ericaceae) comprises fleshy berry crop species, including cranberries, blueberries, lingonberries, bilberries, and bog bilberries, and are widely distributed in many countries. Flavonols, anthocyanins (ACNs), proanthocyanidins (PACs), and phenolic acids are the most bioactive compounds naturally found in Vaccinium berries and have been extensively used as anticancer agents. However, it remains uncertain whether Vaccinium bioactives have a therapeutic role in reproductive cancers (RCs), and how these bioactives could be effective in modulating RC-related signalling pathways/molecular genes. Therefore, this article aims to review existing evidence in the PubMed/MEDLINE database on Vaccinium berries’ major bioactive compounds in RC treatment and unravel the mechanisms underlying this process.

Clinical Potential of Fruit in Bladder Cancer Prevention and Treatment

Posted
Authors
Wigner P, Bijak M, Saluk-Bijak J
Journal
Nutrients. 2022 Mar 8;14(6):1132. doi: 10.3390/nu14061132. PMID: 35334790; PMCID: PMC8951059
Abstract

Bladder cancer (BC) is the most common tumor of the urinary system in the world. Moreover, despite using anticancer therapies, BC is also characterized by a high recurrence risk. Among numerous risk factors, cigarette smoking, occupational exposure to certain aromatic compounds, and genetic factors contribute most strongly to BC development. However, the epidemiological data to date suggests that diet quality may influence some carcinogenic factors of BC and, therefore, might have a preventative effect. Adequate consumption of selected fruits with scientifically proven properties, including pomegranates and cranberries, can significantly reduce the risk of developing BC, even in those at risk. Therefore, in this article, we aim to elucidate, using available literature, the role of fruits, including pomegranates, cranberries, citrus fruits, cactus pears, and apples, in BC prevention and treatment. Previous data indicate the role of compounds in the above-mentioned fruits in the modulation of the signaling pathways, including cell proliferation, cell growth, cell survival, and cell death. 

Ursolic Acid against Prostate and Urogenital Cancers: A Review of In Vitro and In Vivo Studies

Posted
Authors
Kornel A, Nadile M, Retsidou MI, Sakellakis M, Gioti K, Beloukas A, Sze NSK, Klentrou P, Tsiani E
Journal
Int J Mol Sci. 2023 Apr 18;24(8):7414. doi: 10.3390/ijms24087414. PMID: 37108576; PMCID: PMC10138876
Abstract

Prostate cancer is the second most diagnosed form of cancer in men worldwide and accounted for roughly 1.3 million cases and 359,000 deaths globally in 2018, despite all the available treatment strategies including surgery, radiotherapy, and chemotherapy. Finding novel approaches to prevent and treat prostate and other urogenital cancers effectively is of major importance. Chemicals derived from plants, such as docetaxel and paclitaxel, have been used in cancer treatment, and in recent years, research interest has focused on finding other plant-derived chemicals that can be used in the fight against cancer. Ursolic acid, found in high concentrations in cranberries, is a pentacyclic triterpenoid compound demonstrated to have anti-inflammatory, antioxidant, and anticancer properties. In the present review, we summarize the research studies examining the effects of ursolic acid and its derivatives against prostate and other urogenital cancers. Collectively, the existing data indicate that ursolic acid inhibits human prostate, renal, bladder, and testicular cancer cell proliferation and induces apoptosis. A limited number of studies have shown significant reduction in tumor volume in animals xenografted with human prostate cancer cells and treated with ursolic acid. More animal studies and human clinical studies are required to examine the potential of ursolic acid to inhibit prostate and other urogenital cancers in vivo. 

Cranberry anti-cancer compounds and their uptake and metabolism: an updated review

Posted
Authors
Prasain, J. K.; Grubbs, C.; Barnes, S..
Journal
Journal of Berry Research; 2020. 10(1):1-10.
Abstract

Consumption of cranberry fruits or juice rich in polyphenols is associated with a wide range of potential health benefits. We and others have previously showed that cranberry juice concentrate and its phytochemicals, flavonols, anthocyanins and A-type proanthocyandins, may have potential to be chemopreventive agents. Although a number of cranberry constituents have been implicated in cancer prevention, our understanding about which metabolites are bio-available to reach target sites and thereby elicit cancer chemopreventive properties is still lacking. However, poor plasma bioavailability of cranberry constituents may be overcome by their potential interactions with gut microbiota by providing cancer prevention through induction of compositional and functional modifications of gut microbiota. Well-designed clinical trials evaluating metabolic and gut microbiome changes associated with cranberry consumption would provide useful information about the cancer patient's response to dietary intervention with cranberry constituents

Potential of cranberry for suppressing Helicobacter pylori, a risk factor for gastric cancer.

Posted
Authors
Howell, A. B
Journal
Journal of Berry Research; 2020. 10(1):11-20.
Abstract

This review summarizes the mechanistic and clinical research on the use of cranberry as an alternative management strategy for H. pylori bacteria in populations at high risk for infection-induced peptic ulcers and gastric cancer. The multiple mechanisms of action of cranberry polyphenols and how they may be applied in relation to what is known about the pathogenicity of H. pylori offers opportunity for utilizing this fruit to potentially help lower the incidence of ulcers and concomitant gastric cancer

Cranberry Anti-Cancer Compounds and their Uptake and Metabolism: An Updated Review

Posted
Authors
Prasain, Jeevan K.; Grubbs, Clinton; Barnes, Stephen
Journal
Journal of Berry Research, vol. Pre-press, no. Pre-press, pp. 1-10, 2019; DOI: 10.3233/JBR-180370
Abstract

Consumption of cranberry fruits or juice rich in polyphenols is associated with a wide range of potential health benefits. We and others have previously showed that cranberry juice concentrate and its phytochemicals, flavonols, anthocyanins and A-type proanthocyandins, may have potential to be chemopreventive agents. Although a number of cranberry constituents have been implicated in cancer prevention, our understanding about which metabolites are bio-available to reach target sites and thereby elicit cancer chemopreventive properties is still lacking. However, poor plasma bioavailability of cranberry constituents may be overcome by their potential interactions with gut microbiota by providing cancer prevention through induction of compositional and functional modifications of gut microbiota. Well-designed clinical trials evaluating metabolic and gut microbiome changes associated with cranberry consumption would provide useful information about the cancer patient’s response to dietary intervention with cranberry constituents.

Cranberry as a Promising Natural Source of Potential Nutraceuticals with Anticancer Activity.

Posted
Authors
Mantzorou M; Zarros A; Theocharis S; Pavlidou E; Giaginis C.
Journal
Anticancer Agents Med Chem 10.2174/1871520619666190704163301 [doi]
Abstract

Studies have shown that cranberry and its components may exert anticancer properties. The present study aims to critically summarise the existing experimental studies evaluating the potential effects of cranberry on cancer prevention and treatment. PubMed database was searched to identify rele-vant studies. Current in vitro studies have indicated that cranberry and/or its components may act as chemopreventive agents, diminishing the risk for cancer by inhibiting cells oxidation and inflammatory-related processes, while they may also exert chemotherapeutic effects by inhibiting cell proliferation and angiogenesis, inducing cell apoptosis and attenuating the ability of tumour cells to invade and metastasis. Limited in vivo studies have further documented potential anticancer activity. Cranberry could be considered as a conglomeration of potential effective anticancer drug-like compounds.

Potential of Cranberry for Suppressing Helicobacter Pylori, A Risk Factor for Gastric Cancer

Posted
Authors
Howell, Amy B.
Journal
Journal of Berry Research, DOI: 10.3233/JBR-180375
Abstract

This review summarizes the mechanistic and clinical research on the use of cranberry as an alternative management strategy for H. pylori bacteria in populations at high risk for infection-induced peptic ulcers and gastric cancer. The multiple mechanisms of action of cranberry polyphenols and how they may be applied in relation to what is known about the pathogenicity of H. pylori offers opportunity for utilizing this fruit to potentially help lower the incidence of ulcers and concomitant gastric cancer.

Evidence of Some Natural Products with Antigenotoxic Effects. Part 1: Fruits and Polysaccharides

Posted
Authors
Evidence of Some Natural Products with Antigenotoxic Effects. Part 1: Fruits and Polysaccharides
Journal
Nutrients 9(2)
Abstract

Cancer is one of the leading causes of deaths worldwide. The agents capable of causing damage to genetic material are known as genotoxins and, according to their mode of action, are classified into mutagens, carcinogens or teratogens. Genotoxins are involved in the pathogenesis of several chronic degenerative diseases including hepatic, neurodegenerative and cardiovascular disorders, diabetes, arthritis, cancer, chronic inflammation and ageing. In recent decades, researchers have found novel bioactive phytocompounds able to counteract the effects of physical and chemical mutagens. Several studies have shown potential antigenotoxicity in a variety of fruits. In this review (Part 1), we present an overview of research conducted on some fruits (grapefruit, cranberries, pomegranate, guava, pineapple, and mango) which are frequentl consumed by humans, as well as the analysis of some phytochemicals extracted from fruits and yeasts which have demonstrated antigenotoxic capacity in various tests, including the Ames assay, sister chromatid exchange, chromosomal aberrations, micronucleus and comet assay.

Cranberries and Cancer: An Update of Preclinical Studies Evaluating the Cancer Inhibitory Potential of Cranberry and Cranberry Derived Constituents

Posted
Authors
Weh KM, Clarke J, Kresty LA
Journal
Antioxidants 5(3):27
Abstract

Cranberries are rich in bioactive constituents reported to influence a variety of health benefits, ranging from improved immune function and decreased infections to reduced cardiovascular disease and more recently cancer inhibition. A review of cranberry research targeting cancer revealed positive effects of cranberries or cranberry derived constituents against 17 different cancers utilizing a variety of in vitro techniques, whereas in vivo studies supported the inhibitory action of cranberries toward cancers of the esophagus, stomach, colon, bladder, prostate, glioblastoma and lymphoma. Mechanisms of cranberry-linked cancer inhibition include cellular death induction via apoptosis, necrosis and autophagy; reduction of cellular proliferation; alterations in reactive oxygen species; and modification of cytokine and signal transduction pathways. Given the emerging positive preclinical effects of cranberries, future clinical directions targeting cancer or premalignancy in high risk cohorts should be considered.