PUBLICATION

Simultaneous Tests of Theaflavin-3,3'-digallate as an Anti-Diabetic Drug in Human Hepatoma G2 Cells and Zebrafish (Danio rerio)

Authors
Zhou, H., Wu, Y., Kim, E., Pan, H., He, P., Li, B., Chen, Y.C., Tu, Y.
ID
ZDB-PUB-211230-47
Date
2021
Source
Nutrients   13(12): (Journal)
Registered Authors
Keywords
HepG2 cells, anti-diabetic effect, diabetic zebrafish model, glucose metabolism enzymes, theaflavin-3,3′-digallate
MeSH Terms
  • Animals
  • Biflavonoids/isolation & purification
  • Biflavonoids/pharmacology*
  • Catechin/analogs & derivatives*
  • Catechin/isolation & purification
  • Catechin/pharmacology
  • Dose-Response Relationship, Drug
  • Down-Regulation/drug effects
  • Drug Evaluation, Preclinical/methods*
  • Glucokinase/metabolism
  • Glucose/metabolism
  • Hep G2 Cells
  • Humans
  • Hypoglycemic Agents*
  • Phosphoenolpyruvate Carboxykinase (ATP)/metabolism
  • Tea/chemistry
  • Up-Regulation/drug effects
  • Zebrafish
PubMed
34959930 Full text @ Nutrients
Abstract
Theaflavin-3,3'-digallate (TF3) is the most important theaflavin monomer in black tea. TF3 was proved to reduce blood glucose level in mice and rats. However, the elaborate anti-diabetic mechanism was not well elucidated. In this work, human hepatoma G2 (HepG2) cells and zebrafish (Danio rerio) were used simultaneously to reveal anti-diabetic effect of TF3. The results showed that TF3 could effectively rise glucose absorption capacity in insulin-resistant HepG2 cells and regulate glucose level in diabetic zebrafish. The hypoglycemic effect was mediated through down-regulating phosphoenolpyruvate carboxykinase and up-regulating glucokinase. More importantly, TF3 could significantly improve β cells regeneration in diabetic zebrafish at low concentrations (5 μg/mL and 10 μg/mL), which meant TF3 had a strong anti-diabetic effect. Obviously, this work provided the potential benefit of TF3 on hypoglycemic effect, regulating glucose metabolism enzymes, and protecting β cells. TF3 might be a promising agent for combating diabetes.
Genes / Markers
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Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping