Journal
AMERICAN JOURNAL OF CHINESE MEDICINE
Volume 49, Issue 1, Pages 147-161Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0192415X21500087
Keywords
Baicalin; miR-15a; JNK Signaling; MALAT1; Acute Pancreatitis
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Baicalin exhibits therapeutic activity towards acute pancreatitis by increasing miR-15a levels and inhibiting CDC42/MAP3K1, affecting acute pancreatitis by targeting MAP2K4 and inhibiting the JNK signaling pathway.
Acute pancreatitis (AP) is a kind of reversible inflammatory process of the exocrine pancreas. During the process, systemic inflammatory syndromes are involved, which relates closely to inflammatory mediators. Baicalin is a type of flavone compound extracted from Scutellaria baicalensis Georgi and exhibits anti-inflammation effect in several cancers. In this study, baicalin displayed a suppressing role on IL-1 beta, TNF alpha and IL-6 in both cell and mice models. Necrosis was decreased in the baicalin treatment group and got a markedly lower pathological score. In this study, miR-15a is the core intermediate in baicalin regulation, which increased through baicalin treatment and protected pancreas cells and tissues, inhibiting the JNK signaling pathway by targeting MAP2K4. The long non-coding RNA MALAT1 is also a direct target of miR-15a and forms a competitive endogenous RNA (ceRNA) network with MAP2K4, which can be regulated by baicalin. In addition, upstream genes, including CDC42 and MAP3K1, were also regulated by baicalin, of which CDC42 was confirmed to form the second ceRNA network with MALAT1 and miR-15a. In conclusion, baicalin exhibits therapeutic activity towards AP by pumping up miR-15a level and inhibiting CDC42/MAP3K1, which affects AP as a brake by targeting MAP2K4 and inhibiting the JNK signaling pathway.
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