Z-ajoene from Crushed Garlic Alleviates Cancer-Induced Skeletal Muscle Atrophy

Autor: Mi-Kyung Sung, Ji-Won Heo, Sorim Nam, Sung-Eun Kim, Hye-jin Lee, Jong-Seok Lim, Jae-Ha Ryu, Minson Kweon, A-Reum Kim
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Nutrients, Vol 11, Iss 11, p 2724 (2019)
Nutrients
Volume 11
Issue 11
ISSN: 2072-6643
Popis: Skeletal muscle atrophy is one of the major symptoms of cancer cachexia. Garlic (Allium sativum), one of the world&rsquo
s most commonly used and versatile herbs, has been employed for the prevention and treatment of diverse diseases for centuries. In the present study, we found that ajoene, a sulfur compound found in crushed garlic, exhibits protective effects against muscle atrophy. Using CT26 tumor-bearing BALB/c mice, we demonstrate in vivo that ajoene extract alleviated muscle degradation by decreasing not only myokines secretion but also janus kinase/signal transducer and activator of transcription 3 (JAK/STAT3) and SMADs/forkhead box (FoxO) signaling pathways, thereby suppressing muscle-specific E3 ligases. In mouse skeletal myoblasts, Z-ajoene enhanced myogenesis as evidenced by increased expression of myogenic markers via p38 mitogen-activated protein kinase (MAPK) activation. In mature myotubes, Z-ajoene protected against muscle protein degradation induced by conditioned media from CT26 colon carcinoma cells, by suppressing expression of muscle specific E3 ligases and nuclear transcription factor kappa B (NF-&kappa
B) phosphorylation which contribute to muscle atrophy. Moreover, Z-ajoene treatment improved myofiber formation via stimulation of muscle protein synthesis. These findings suggest that ajoene extract and Z-ajoene can attenuate skeletal muscle atrophy induced by cancer cachexia through suppressing inflammatory responses and the muscle wasting as well as by promoting muscle protein synthesis.
Databáze: OpenAIRE