双歧杆菌
细胞凋亡
下调和上调
乳酸菌
癌细胞
活性氧
癌症
生物
半胱氨酸蛋白酶
细菌
微生物学
作用机理
化学
癌症研究
生物化学
程序性细胞死亡
体外
遗传学
基因
作者
Adriana Nowak,Anna Paliwoda,Janusz Błasiak
标识
DOI:10.1080/10408398.2018.1494539
摘要
Lactobacillus and Bifidobacterium strains, their isolated constituents and substances that they secrete exert various anti-cancer actions, resulting from their anti-proliferative, pro-apoptotic and anti-oxidant properties. They can express and secrete anti-oxidant enzymes, bind reactive oxygen species, release small molecular weight anti-oxidants and chelate transition metals, preventing detrimental actions of many carcinogens. Lactobacillus and Bifidobacterium can interact with proteins regulating the cell cycle inhibiting proliferation of cancer cells, which often are intrinsically resistant to apoptosis. Lactobacilli and bifidobacteria can break this resistance through activation of pro-caspases and downregulation of the anti-apoptotic Bcl-2 and upregulation of pro-apoptotic Bax proteins. Anti-cancer effects of these bacteria can be also associated with their multi-pathways action in the microbiota. However, exact mechanism of their anti-cancer action is poorly known and needs further studies, which are justified by the important role of these bacteria in cancer biology as well as their potential preventive and therapeutic use.
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