glypican_1

Glypican 1

In order to set up a reliable prediction system for the tumor grade and glioma outcome, Li et al. clarified the complicated crosstalk of Annexin A2 (ANXA2) with Glypican 1 (GPC1) and demonstrate whether combined indexes of ANXA2 and GPC1 could improve the prognostic evaluation for glioma patients. Li et al. found that ANXA2-induced glioma cell proliferation in a c-Myc-dependent manner. ANXA2 increased the expression of GPC1 via c-Myc and the upregulated GPC1 further promoted the c-Myc level, forming a positive feedback loop, which eventually led to enhanced proliferation of glioma cells. Both mRNA and protein levels of ANXA2 were upregulated in glioma tissues and coincided with the overexpression of GPC1. Besides, they utilized tissue microarrays (TMAs) and immunohistochemistry to demonstrate that glioma patients with both high expressions of ANXA2 and GPC1 tended to have a higher rate of tumor recurrence and shorter overall survival (OS). In conclusion, the overexpression of ANXA2 promotes proliferation of glioma cells by forming a GPC1/c-Myc positive feedback loop, and ANXA2 together with its downstream target GPC1 could be a potential “combination biomarker” for predicting the prognosis of glioma patients 1).


1)
Li X, Nie S, Lv Z, Ma L, Song Y, Hu Z, Hu X, Liu Z, Zhou G, Dai Z, Song T, Liu J, Wang S. Overexpression of Annexin A2 promotes proliferation by forming a Glypican 1/c-Myc positive feedback loop: prognostic significance in human glioma. Cell Death Dis. 2021 Mar 12;12(3):261. doi: 10.1038/s41419-021-03547-5. PMID: 33712571.
  • glypican_1.txt
  • Last modified: 2021/03/14 10:53
  • by administrador