Journal
BIOCHIMICA ET BIOPHYSICA ACTA-REVIEWS ON CANCER
Volume 1875, Issue 1, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.bbcan.2020.188494
Keywords
Probiotics; Gut microbiota; Lactobacillus; Bifidobacterium; cancer prevention
Categories
Funding
- Jefferson College of Pharmacy Intramural Support
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Studies have shown that probiotics, particularly Lactobacillus and Bifidobacterium, induce anti-cancer action and decrease cancer-producing microorganisms. Gut microbes not only enhance the action of chemotherapy drugs but also reduce the side effects of these medications.
Bacteria present in probiotics, particularly the common Lactobacillus and Bifidobacterium microbes, have been found to induce anti-cancer action by enhancing cancer cell apoptosis and protecting against oxidative stress. Probiotics supplements also decrease the cancer-producing microorganism Fusobacterium. Studies have demonstrated that gut microbiota modifies the effect of chemo/radiation therapy. Gut microbes not only enhance the action of chemotherapy drugs but also reduce the side effects of these medications. Additionally, gut microbes reduce immunotherapy toxicity, in particular, the presence of Bacteroidetes or Bifidobacterium decreases the development of colitis by ipilimumab therapy. Probiotics supplements containing Bifidobacterium also reduce chemotherapy-induced mucositis and radiation-induced diarrhea. This review focused on elucidating the mechanism behind the anti-cancer action of Bifidobacterium species. Available studies have revealed Bifidobacterium species decrease cancer cell proliferation via the inhibition of growth factor signaling as well as inducing mitochondrial-mediated apoptosis. Moreover, Bifidobacterium species reduce the adverse effects of chemo/immuno/radiation therapy by inhibiting proinflammatory cytokines. Further clinical studies are needed to identify the powerful and suitable Bifidobacterium strain for the development of adjuvant therapy to support chemo/immuno/radiation therapy.
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