Mechanism of Agrimoniae Herba and Coptidis Rhizoma in Inhibiting Colorectal Cancer by Regulating Chaperone-mediated Autophagy
10.13422/j.cnki.syfjx.20241524
- VernacularTitle:仙鹤草-黄连通过调控分子伴侣介导自噬抑制结直肠癌的作用机制
- Author:
Yaping HE
1
;
Minyan HOU
1
;
Haiyan PENG
1
Author Information
1. The First Clinical College of Nanjing University of Chinese Medicine， Nanjing 210029， China
- Publication Type:Journal Article
- Keywords:
colorectal cancer;
Agrimoniae Herba and Coptidis Rhizoma;
chaperone-mediated autophagy;
traditional Chinese medicine treatment
- From:
Chinese Journal of Experimental Traditional Medical Formulae
2024;30(18):61-71
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo observe the effects of Agrimoniae Herba and Coptidis Rhizoma（XHC-HL） on the proliferation， migration， invasion， apoptosis， and autophagy of colorectal tumor cells and explore the mechanism of Agrimoniae Herba and Coptidis Rhizoma in inhibiting colorectal cancer by regulating chaperone-mediated autophagy（CMA）. MethodXHC-HL-containing serum was prepared， and human colorectal cancer cell lines HT29 and LOVO were cultivated and divided into blank group （20% blank serum）， low XHC-HL groups （5%， 10%， 20% drug-containing serum）， and a positive control group using 5-fluorouracil （5-FU）. Cell viability was measured using the cell counting kit-8 （CCK-8） method. Cell proliferation ability was assessed through 5-ethynyl-2′-deoxyuridine （EdU） staining. Scratch assays and Transwell migration tests were conducted to evaluate cell migration ability， and Transwell invasion assays were used to assess cell invasion ability. Apoptosis rates were determined by flow cytometry， and the impact of XHC-HL on yeast Atg6 homologous 1 （Beclin-1）， microtubule-associated protein1 light chain3 Ⅱ （LC3 Ⅱ）， and p62 was analyzed via Western blot. The influence of XHC-HL on CMA-related proteins and mRNA was examined using Western blot and real-time fluorescence quantitative polymerase chain reaction （Real-time PCR）. ResultCompared to that in the blank group， the vitality of colorectal cancer cells HT-29 and LOVO was significantly inhibited in XHC-HL groups and the 5-FU group （P<0.01）. Compared to that in the blank group， the proliferation of colorectal cancer cells HT-29 and LOVO was significantly inhibited in XHC-HL groups and the 5-FU group （P<0.05， P<0.01）. Compared to the blank group， there was a significant reduction in cell migration rates （P<0.01）， the number of cells migrating to the lower chamber （P<0.01）， and the number of invasive cells （P<0.01）， as well as and an increase in cell apoptosis （P<0.01） in XHC-HL groups and the 5-FU group （P<0.01）. Western blot results indicated that compared to that in the blank group， the expression levels of Beclin-1 and LC3 Ⅱ were increased（P<0.05，P<0.01）in XHC-HL groups and the 5-FU group， while the p62 levels were decreased（P<0.05，P<0.01）. Furthermore， the protein expression levels of lysosomal associated protein 2A （LAMP2A）， heat shock cognate protein 70 （HSC70）， and heat-shock protein 90 （HSP90） in XHC-HL groups and the 5-FU group were decreased to varying extents， whereas the expression levels of glyceraldehyde-3-phosphate dehydrogenase （GAPDH） were elevated （P<0.01）. The Real-time PCR results showed that compared to those in the blank group， the mRNA levels of LAMP2A， HSC70， and HSP90 were downregulated in XHC-HL groups and the 5-FU group， and the mRNA expression level of GAPDH was upregulated （P<0.01）. ConclusionXHC-HL can inhibit the proliferation， migration， and invasion of colorectal cancer cells by suppressing CMA activity， thus inducing autophagy and promoting apoptosis.
