Interfering with hyaluronic acid metabolism suppresses glioma cell proliferation by regulating autophagy

Autor: Tao Yan, Xin Chen, Hua Zhan, Penglei Yao, Ning Wang, He Yang, Cheng Zhang, Kaikai Wang, Hong Hu, Jiafeng Li, Jingxian Sun, Yu Dong, Enzhou Lu, Zhixing Zheng, Ruotian Zhang, Xiaoxiong Wang, Jichao Ma, Ming Gao, Junyi Ye, Xinzhuang Wang, Lei Teng, Huailei Liu, Shiguang Zhao
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Cell Death and Disease, Vol 12, Iss 5, Pp 1-15 (2021)
Druh dokumentu: article
ISSN: 2041-4889
DOI: 10.1038/s41419-021-03747-z
Popis: Abstract The tumor microenvironment plays an important role in tumor progression. Hyaluronic acid (HA), an important component of the extracellular matrix in the tumor microenvironment, abnormally accumulates in a variety of tumors. However, the role of abnormal HA accumulation in glioma remains unclear. The present study indicated that HA, hyaluronic acid synthase 3 (HAS3), and a receptor of HA named CD44 were expressed at high levels in human glioma tissues and negatively correlated with the prognosis of patients with glioma. Silencing HAS3 expression or blocking CD44 inhibited glioma cell proliferation in vitro and in vivo. The underlying mechanism was attributed to the inhibition of autophagy flux and maintaining glioma cell cycle arrest in G1 phase. More importantly, 4-methylumbelliferone (4-MU), a small competitive inhibitor of Uridine diphosphate (UDP) with the ability to penetrate the blood-brain barrier (BBB), also inhibited glioma cell proliferation in vitro and in vivo. Thus, approaches that interfere with HA metabolism by altering the expression of HAS3 and CD44 and the administration of 4-MU potentially represent effective strategies for glioma treatment.
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