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Evaluating Cell Death Using Cell-Free Supernatant of Probiotics in Three-Dimensional Spheroid Cultures of Colorectal Cancer Cells
Published on: June 13, 2020
Probiotics Clostridium butyricum and Bacillus subtilis ameliorate intestinal tumorigenesis
Zhao-Fei Chen1, Luo-Yan Ai1, Ji-Lin Wang1
1Division of Gastroenterology & Hepatology, Renji Hospital, School of Medicine, Shanghai Jiaotong University; Shanghai Institute of Digestive Disease, 145 Middle Shandong Road, Shanghai 200001, China.
Aims:
To investigate the antitumor effects of probiotics Clostridium butyricum and Bacillus subtilis on colorectal cancer (CRC) progression.
Materials & Methods:
The effects of C. butyricum and B. subtilis on CRC cells were studied. Male C57BL/6 mice with 1,2-dimethylhydrazine dihydrochloride (DMH)-induced CRC were intervened by these two probiotics and the antitumor effects were examined by comparing the tumor incidence and detecting the inflammatory and immune-related markers.
Results & Conclusions:
C. butyricum and B. subtilis inhibited the proliferation of CRC cells, caused cell cycle arrest and promoted apoptosis. In vivo, these two probiotics inhibited the development of DMH-induced CRC. The molecular mechanism involved reduced inflammation and improved immune homeostasis. This work establishes a basis for the protective role of probiotics B. subtilis and C. butyricum in intestinal tumorigenesis.
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