Inhibitory Effect and Mechanism of Sishenwan-containing Serum on Aerobic Glycolysis in Human Colon Cancer Cells
10.13422/j.cnki.syfjx.20230130
- VernacularTitle:四神丸含药血清抑制人结肠癌细胞有氧糖酵解的效应及机制
- Author:
Yifang JIANG
1
;
Ya HUANG
1
;
Chong XIAO
1
;
Shuwen ZHOU
1
;
Lili ZHENG
1
;
Fengming YOU
1
Author Information
1. Traditional Chinese Medicine(TCM) Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of TCM, Chengdu 610075, China
- Publication Type:Journal Article
- Keywords:
Sishenwan;
colon cancer;
glycolysis;
methyltransferase-like 3 (MettL3);
N6-methyladenosine (m6A) RNA methylation
- From:
Chinese Journal of Experimental Traditional Medical Formulae
2023;29(19):26-33
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo explore the effect and mechanism of Sishenwan-containing serum on aerobic glycolysis in human colon cancer HCT116 cells. MethodCell counting kit-8 (CCK-8) was used to detect the cell viability of colon cancer HCT116 cells after treatment with Sishenwan-containing serum (2.5%, 5%, and 10%) for 24, 48, 72 h. The concentration of lactic acid, the content of intracellular glucose, and the activity of hexokinase (HK) and fructose-6-phosphate kinase (PFK) in the cell culture medium were detected by the micro-method. The content of glucose transporter 1 (GluT1) mRNA was detected by Real-time quantitative polymerase chain reaction (Real-time PCR). The protein expression of GluT1 and methyltransferase-like 3 (MettL3) was detected by Western blot. The expression of GluT1 in cells was detected by immunofluorescence and the level of N6-methyladenosine (m6A) RNA methylation was detected by colorimetry. ResultCompared with the normal serum, 2.5%, 5%, and 10% Sishenwan-containing serum had no significant effect on the viability of HCT116 cells at 24 h, while 10% Sishenwan-containing serum showed a significant inhibitory effect on the viability of HCT116 cells at 48 h (P<0.05). Hence, 10% Sishenwan-containing serum was used in subsequent experiments, and the intervention time was 48 h. Compared with the normal serum, 10% Sishenwan-containing serum could reduce lactate production (P<0.05), down-regulate glucose uptake (P<0.05), and blunt the activities of HK and PFK, the key rate-limiting enzymes of glycolysis (P<0.05). Meanwhile, 10% Sishenwan-containing serum could decrease the expression of GluT1 protein (P<0.01) and mRNA (P<0.05) and reduce the proportion of cells expressing GluT1 (P<0.01). Compared with the normal serum, Sishenwan-containing serum also decreased the protein content of MettL3 (P<0.05) and the methylation level of m6A RNA (P<0.01). ConclusionSishenwan can inhibit glycolysis in colon cancer cells, and its inhibitory mechanism may be related to reducing MettL3 overexpression, inhibiting m6A RNA methylation, and down-regulating GluT1 and the activities of intracellular aerobic glycolysis-related enzymes such as HK and PFK.