pubs.acs.org...
In previous studies, pomegranate juice (PJ) and its ellagitannins inhibited proliferation and induced apoptosis in HT-29 colon cancer cells. The present study examined the effects of PJ on inflammatory cell signaling proteins in the HT-29 human colon cancer cell line. At a concentration of 50 mg/L PJ significantly suppressed TNFα-induced COX-2 protein expression by 79% (SE = 0.042), total pomegranate tannin extract (TPT) 55% (SE = 0.049), and punicalagin 48% (SE = 0.022). Additionally, PJ reduced phosphorylation of the p65 subunit and binding to the NFκB response element 6.4-fold. TPT suppressed NFκB binding 10-fold, punicalagin 3.6-fold, whereas ellagic acid (EA) (another pomegranate polyphenol) was ineffective. PJ also abolished TNFα-induced AKT activation, needed for NFκB activity. Therefore, the polyphenolic phytochemicals in the pomegranate can play an important role in the modulation of inflammatory cell signaling in colon cancer cells.
Pomegranate fruit juice for chemoprevention and chemotherapy of prostate cancer
www.pnas.org...
We recently showed that pomegranate fruit extract (PFE) possesses remarkable antitumor-promoting effects in mouse skin. In this study, employing human prostate cancer cells, we evaluated the antiproliferative and proapoptotic properties of PFE. ...Oral administration of PFE (0.1% and 0.2%, wt/vol) to athymic nude mice implanted with androgen-sensitive CWR22Rν1 cells resulted in a significant inhibition in tumor growth concomitant with a significant decrease in serum prostate-specific antigen levels. We suggest that pomegranate juice may have cancer-chemopreventive as well as cancer-chemotherapeutic effects against prostate cancer in humans.

Quercetin
Foods: Black & Green Tea, Onions, Caper, Lovage, Apples, Red Grapes, Citrus, Tomato, Broccoli, Cherry, Raspberry, Cranberry, Bilberry and many others.
en.wikipedia.org...
Quercetin is a flavonol, plant-derived flavonoid, used as a nutritional supplement. Laboratory studies show it may have anti-inflammatory and antioxidant properties,and it is being investigated for a wide range of potential health benefits.
Induction of cell cycle arrest and apoptosis in human breast cancer cells by quercetin
www.ncbi.nlm.nih.gov...
The present data, therefore, demonstrate that a flavonoid quercetin induces growth inhibition in the human breast carcinoma cell line MCF-7 through at least two different mechanisms; by inhibiting cell cycle progression through transient M phase accumulation and subsequent G2 arrest, and by inducing apoptosis.
The role of activated MEK-ERK pathway in quercetin-induced growth inhibition and apoptosis in A549 lung cancer cells
carcin.oxfordjournals.org...
Inhibition of caspase activation completely blocked quercetin-induced apoptosis. Expression of constitutively activated MEK1 in A549 cells led to activation of caspase-3 and apoptosis. The results suggest that in addition to inactivation of Akt-1 and alteration in the expression of the Bcl-2 family of proteins, activation of MEK-ERK is required for quercetin-induced apoptosis in A549 lung carcinoma cells.
Ellagic acid and quercetin interact synergistically with resveratrol in the induction of apoptosis and cause transient cell cycle arrest in human leukemia cells
www.cancerletters.info...(04)00430-6/abstract
Results showed a more than additive interaction for the combination of ellagic acid with resveratrol and furthermore, significant alterations in cell cycle kinetics induced by single compounds and combinations were observed. An isobolographic analysis was performed to assess the apparent synergistic interaction for the combinations of ellagic acid with resveratrol and quercetin with resveratrol in the induction of caspase 3 activity, confirming a synergistic interaction with a combination index of 0.64 for the combination of ellagic acid and resveratrol and 0.68 for quercetin and resveratrol. Results indicate that the anticarcinogenic potential of foods containing polyphenols may not be based on the effects of individual compounds, but may involve a synergistic enhancement of the anticancer effects.
Quercetin decreases the expression of ErbB2 and ErbB3 proteins in HT-29 human colon cancer cells
www.journals.elsevierhealth.com...
Quercetin inhibited HT-29 cell growth in a dose-dependent manner, whereas rutin had no effect on the cell growth. DNA that was isolated from cells treated with 50 μmol/L of quercetin exhibited an oliogonucleosomal laddering pattern characteristic of apoptotic cell death. Western blot analysis of cell lysates revealed that Bcl-2 levels decreased dose-dependently in cells treated with quercetin, but Bax remained unchanged.
Food-derived polyphenols inhibit pancreatic cancer growth through mitochondrial cytochrome C release and apoptosis
onlinelibrary.wiley.com...
We measured effects of quercetin on pancreatic cancer in a nude mouse model. We also investigated the effects of quercetin, rutin, trans-resveratrol and genistein on apoptosis and underlying signaling in pancreatic carcinoma cells in vitro. ...The inhibition of mitochondrial permeability transition prevented cytochrome c release, caspase-3 activation and apoptosis caused by polyphenols. Nuclear factor-κB activity was inhibited by quercetin and trans-resveratrol, but not genistein, indicating that this transcription factor is not the only mediator of the polyphenols' effects on apoptosis. The results suggest that food-derived polyphenols inhibit pancreatic cancer growth and prevent metastasis by inducing mitochondrial dysfunction, resulting in cytochrome c release, caspase activation and apoptosis.

Raspberries
en.wikipedia.org...
Black Raspberries Show Multiple Defenses In Thwarting Cancer (2001)
researchnews.osu.edu...
He chose black raspberries for this study because previous studies had shown that ellagic acid inhibited carcinogen-induced esophageal and colon cancer in animals. He and his colleagues then tested a series of fruits for their ellagic acid content, finding that berries contained the highest amount. "We then decided to take a food-based approach to cancer prevention and began testing the berries' ability to inhibit chemically-induced esophageal and colon cancer," Stoner said. "Sure enough, we found that freeze-dried berries were highly protective in the esophagus and colon. But we also found that they were ineffective in protecting against lung cancer. "The protective compounds in berries may not be absorbed into the blood stream and delivered to the lungs in high enough amounts to be protective. We do believe that they protect the esophagus and colon because they are absorbed by these organs as the food moves through the digestive tract."
Black Raspberries Slow Cancer By Altering Hundreds Of Genes (2008)
www.sciencedaily.com...
The carcinogen affected the activity of some 2,200 genes in the animals’ esophagus in only one week, but 460 of those genes were restored to normal activity in animals that consumed freeze-dried black raspberry powder as part of their diet during the exposure. These findings, published in recent issue of the journal Cancer Research, also helped identify 53 genes that may play a fundamental role in early cancer development and may therefore be important targets for chemoprevention agents.

Resveratrol
Found in red grapes and blueberries.
en.wikipedia.org...
www.youtube.com...
Apoptosis Induced by Capsaicin and Resveratrol in Colon Carcinoma Cells Requires Nitric Oxide Production and Caspase Activation
ar.iiarjournals.org...
We examined the role of nitric oxide (NO•) and influence of p53 status during apoptosis induced by these agents in two isogenic HCT116 human colon carcinomas, wild-type p53 (p53-WT) and complete knockout of p53 (p53-null) cells. Capsaicin and resveratrol, alone or in combination, inhibited cell growth and promoted apoptosis by the elevation of NO•; combined treatment in p53-WT cells was most effective. Increased NO• production after treatment uniformly stimulated p53 and Bax expression through Mdm2 down-regulation in p53-WT cells, whereas all were unaffected in p53-null cells. Both cell types underwent a reduction in the levels of anti-apoptotic Bcl-2 protein, cytochrome c loss from mitochondria and activation of caspase 9 together with caspase 3, independently of p53 status.
Resveratrol Induces Apoptosis in Thyroid Cancer Cell Lines via a MAPK- and p53-Dependent Mechanism





























