Wang Yuanyuan, Zeng Yanqiong, Zhu Linyu, Wan Jiajia, Lei Ningjing, Yao Xiaohan, Duan Xixi, Zhang Yana, Cheng Yanru, Tao Ning, Qin Zhihai
The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
School of Basic Medical Sciences of Southwest Medical University, Luzhou, China.
Front Oncol. 2021 Feb 12;10:547683. doi: 10.3389/fonc.2020.547683. eCollection 2020.
Polysaccharides from () have been successfully used as adjuvant chemotherapy drug to treat lymphatic metastasis in some malignancies, such as colorectal cancer (CRC), lung cancer and gastric cancer. The CRC could metastasize lymphatic vessels. Lymphatic metastasis is commonly thought to be the cause of poor prognosis of CRC. The mechanism of polysaccharides from inhibiting lymphatic metastasis of CRC is still unclear. In this study, we explored how MPSSS, a novel polysaccharide component of , influences lymphangiogenesis and lymph node metastasis. The results show that MPSSS can reduce lymphangiogenesis and lymphatic metastasis of CRC in mouse model. And combined with study, a likely mechanism is that MPSSS reduce the secretion of VEGF-C by cancer associated fibroblasts (CAFs). This effect can be suppressed by a TLR4 inhibitor, which suggests that MPSSS plays a role in CAFs through the TLR4/JNK signaling pathway. In conclusion, MPSSS may reduce lymphangiogenesis by decreasing the VEGF-C secretion of CAFs, which may provide a new strategy for the comprehensive treatment of CRC.
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