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Thursday, 25 April 2019


Anti-tumor activity of curcumin on stomach cancer


Image result for golden latteYou may have seen it popping up on cafe menus recently — the "golden latte". It's hot milk mixed with turmeric, coconut oil, maybe a bit of honey. Curcumin has been proclaimed a superfood; a health booster — the yellow powder used as a central component in Asian cooking for thousands of years. turmeric was known as a healing food in the ancient Indian system of medicine Ayurveda — where it was used for many medical uses. Recently a new research indicates the curcumin also help prevent or combat stomach cancer.

A recent study by researchers at the Federal University of São Paulo (UNIFESP) and the Federal University of Pará (UFPA) in Brazil identified possible therapeutic effects of this pigment and of other bioactive compounds found in food on stomach cancer, the third and fifth most frequent type of cancer among Brazilian men and women, respectively. They undertook a vast review of the scientific literature on all nutrients and bioactive compounds with the potential to prevent or treat stomach cancer and found that curcumin is one of them. Curcumin is a natural regulator of histone activity.

Histones are proteins in cell nuclei that organize the DNA double helix into structural units called nucleosomes. Each nucleosome is made of DNA coiled like a spool around eight histone proteins (a histone octamer) to compact the DNA so that it fits in the cell, where it is packaged into chromatin. The activity of the histones is regulated by some enzymes like histone acetyltransferases (HATs) and histone deacetylases (HDACs). These alterations are epigenetic and affect the structure and integrity of the genome in many tumors, including stomach cancer.

The researchers have found that curcumin influences histone modifications primarily by inhibiting HATs and HDACs to suppress cancer cell proliferation and induce apoptosis (programmed cell death) on the tumoral cells.

Journal Reference:

Danielle Q Calcagno, Fernanda Wisnieski, Elizangela R da Silva Mota, Stefanie B Maia de Sousa, Jéssica M Costa da Silva, Mariana F Leal, Carolina O Gigek, Leonardo C Santos, Lucas T Rasmussen, Paulo P Assumpção, Rommel R Burbano, Marília AC Smith. Role of histone acetylation in gastric cancer: implications of dietetic compounds and clinical perspectives. Epigenomics, 2019; 11 (3): 349 DOI: 10.2217/epi-2018-0081

1 comment:

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