Jianpi Decoction Combined with Medroxyprogesterone Acetate Alleviates Cancer Cachexia and Prevents Muscle Atrophy by Directly Inhibiting E3 Ubiquitin Ligase
Original Article|Updated:2024-07-03
|
Jianpi Decoction Combined with Medroxyprogesterone Acetate Alleviates Cancer Cachexia and Prevents Muscle Atrophy by Directly Inhibiting E3 Ubiquitin Ligase
Jianpi Decoction Combined with Medroxyprogesterone Acetate Alleviates Cancer Cachexia and Prevents Muscle Atrophy by Directly Inhibiting E3 Ubiquitin Ligase
中国结合医学杂志(英文版)2024年30卷第6期 页码:499-506
Affiliations:
1.Department of Oncology and Hematology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, Guangdong Province(518033), China
2.College of Pharmacy/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education(MOE) of China, Jinan University, Guangzhou (510632), China
3.Guangdong Key Lab of Traditional Chinese Medicine Information Technology, Jinan University, Guangzhou (510632), China
Author bio:
Prof. YANG Zhen-jiang, E-mail: dzjysz@163.com
Funds:
Guangdong Key Lab of Traditional Chinese Medicine Information Technology(2021B1212040007);"3030" Project of Shenzhen Hospital of Traditional Chinese Medicine in 2021
Jianpi Decoction Combined with Medroxyprogesterone Acetate Alleviates Cancer Cachexia and Prevents Muscle Atrophy by Directly Inhibiting E3 Ubiquitin Ligase[J]. 中国结合医学杂志(英文版), 2024,30(6):499-506.
LI Qi, KONG Zhao-di, WANG Huan, et al. Jianpi Decoction Combined with Medroxyprogesterone Acetate Alleviates Cancer Cachexia and Prevents Muscle Atrophy by Directly Inhibiting E3 Ubiquitin Ligase[J]. Chinese Journal of Integrative Medicine, 2024,30(6):499-506.
Jianpi Decoction Combined with Medroxyprogesterone Acetate Alleviates Cancer Cachexia and Prevents Muscle Atrophy by Directly Inhibiting E3 Ubiquitin Ligase[J]. 中国结合医学杂志(英文版), 2024,30(6):499-506. DOI: 10.1007/s11655-023-3702-4.
LI Qi, KONG Zhao-di, WANG Huan, et al. Jianpi Decoction Combined with Medroxyprogesterone Acetate Alleviates Cancer Cachexia and Prevents Muscle Atrophy by Directly Inhibiting E3 Ubiquitin Ligase[J]. Chinese Journal of Integrative Medicine, 2024,30(6):499-506. DOI: 10.1007/s11655-023-3702-4.
Jianpi Decoction Combined with Medroxyprogesterone Acetate Alleviates Cancer Cachexia and Prevents Muscle Atrophy by Directly Inhibiting E3 Ubiquitin Ligase
摘要
Abstract
Objective:
2
To provide comprehensive evidence for the anti-cancer cachexia effect of Jianpi Decoction (JP) and to explore its mechanism of anti-cancer cachexia.
Methods:
2
A mouse model of colon cancer (CT26)-induced cancer cachexia (CC) was used to investigate the anti-CC effect of JP combined with medroxyprogesterone acetate (MPA). Thirty-six mice were equally divided into 6 groups: normal control
CC
MPA (100 mg•kg
-1
•d
-1
)
MPA + low-dose (20 mg•kg
-1
•d
-1
) JP (L-JP)
MPA + medium-dose (30 mg•kg
-1
•d
-1
) JP (M-JP)
and MPA + high-dose (40 mg•kg
-1
•d
-1
) JP (H-JP) groups. After successful modeling
the mice were administered by gavage for 11 d. The body weight and tumor volume were measured and recorded every 2 d starting on the 8th day after implantation. The liver
heart
spleen
lung
kidney
tumor and gastrocnemius muscle of mice were collected and weighed. The pathological changes of the tumor was observed
and the cross-sectional area of the gastrocnemius muscle was calculated. The protein expressions of STAT3 and E3 ubiquitinase in the gastrocnemius muscle were measured by Western blot. In addition
an
in vitro
C2C12 myotube formation model was established to investigate the role of JP in hindering dexamethasone-induced muscle atrophy.
In vitro
experiments were divided into control
model
and JP serum groups. After 2-d administration
microscopic photographs were taken and myotube diameters were calculated. Western blot was performed to measure the protein expressions of STAT3 and E3 ubiquitinase.
Results:
2
JP combined with MPA restored tumor-induced weight loss (
P
<
0.05
vs
. CC) and muscle fiber size (
P
<
0.01
vs
. CC). Mechanistically
JP reduced the expression of atrophy-related proteins MuRF1 and MAFbx in tumor-induced muscle atrophy
in vivo
(
P
<
0.05
vs
. CC). In addition
JP reduced the expression of atrophy-related proteins MuRF1 and MAFbx and p-STAT3 phosphorylation (
P
<
0.05 or
P
<
0.01
vs
. model group) in C2C12 myotubes treated with dexamethasone
in vitro
.
Conclusions:
2
Administration of JP combined with MPA restores tumor-induced cachexia conditions. In addition
the profound effect of JP combined with MPA on tumor-induced cachexia may be due to its inhibition of muscle proteolysis (E3 ubiquitinase system).
关键词
Keywords
cancer cachexiamuscle atrophyJianpi DecoctionChinese medicineE3 ubiquitin ligases