2. Academic Validation
  3. Litchi procyanidins inhibit colon cancer proliferation and metastasis by triggering gut-lung axis immunotherapy

Litchi procyanidins inhibit colon cancer proliferation and metastasis by triggering gut-lung axis immunotherapy

  • Cell Death Dis. 2023 Feb 11;14(2):109. doi: 10.1038/s41419-022-05482-5.
Yuan Yao # 1,  Suya Feng # 1,  Xuejiao Li # 2,  Taohua Liu 1,  Shengying Ye 3,  Long Ma 4,  Shuli Man 5
Affiliations

Affiliations

  • 1 State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China.
  • 2 Henan Key Laboratory of Rare Diseases, Endocrinology and Metabolism Center, The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, 471003, China.
  • 3 Department of Pharmacy, The 983th Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army, Tianjin, 300142, China. [email protected].
  • 4 State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China. [email protected].
  • 5 State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China. [email protected].
  • # Contributed equally.
PMID: 36774343 DOI: 10.1038/s41419-022-05482-5
Abstract

Litchi chinensis seed, as a valuable by-product of the subtropical fruit litchi (Litchi chinensis Sonn.), has been confirmed to be rich in procyanidins (LPC). The anticarcinogenic properties of procyanidins has been primarily attributed to their antioxidant and anti-inflammatory activities. However, there is a comparative paucity of information on if and how LPC inhibits colon Cancer. Here, LPC significantly inhibited CT26 colon Cancer cells proliferation and metastasis in vivo and in vitro. In CT26 lung metastatic mice, the anti-metastatic effect of LPC relied on its regulation of gut microbiota such as increase of Lachnospiraceae UCG-006, Ruminococcus, and their metabolites such as acetic acid, propionic acid and butyric acid. In addition, LPC significantly inhibited CT26 colon Cancer cells metastasis through increasing CD8+ cytotoxic T lymphocytes infiltration and decreasing the number of macrophages. Antibiotics treatment demonstrated that the therapeutic effect of LPC depended on the gut microbiota, which regulated T cells immune response. Taken together, LPC had strong inhibitory effects on colon Cancer pulmonary metastasis by triggering gut-lung axis to influence the T cells immune response. Our research provides a novel finding for the utilization of procyanidins in the future, that is, supplementing more fruits and vegetables rich in procyanidins is beneficial to the treatment of colon Cancer, or it can be used as an adjuvant drug in clinical anti-tumor immunotherapy.

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