RETRACTED: pNaKtide inhibits Na/K-ATPase reactive oxygen species amplification and attenuates adipogenesis

Area of Science:

• Biochemistry
• Physiology
• Metabolic Research

Background:

• Obesity is a global epidemic and a primary risk factor for metabolic syndrome.
• Oxidative stress contributes to obesity development and maintenance.
• Na/K-ATPase is identified as a pathway that amplifies oxidant signaling.

Purpose of the Study:

• To investigate if pNaKtide, an inhibitor of Na/K-ATPase, can ameliorate obesity phenotypes.
• To explore the potential of targeting Na/K-ATPase for treating obesity and related metabolic disorders.

Main Methods:

• In vitro studies using isolated murine preadipocytes (3T3L1 cells).
• In vivo studies using C57Bl6 mice fed a high-fat diet.
• Administration of pNaKtide to assess its effects on oxidative stress, lipid accumulation, body weight, redox balance, inflammation, and insulin sensitivity.

Main Results:

• pNaKtide dose-dependently attenuated oxidant stress and lipid accumulation in 3T3L1 cells.
• In mice, pNaKtide administration reduced body weight gain.
• pNaKtide restored systemic redox and inflammatory balance and improved insulin sensitivity.

Conclusions:

• Inhibition of Na/K-ATPase amplification of oxidative stress is a potential therapeutic strategy.
• pNaKtide demonstrates promise in combating obesity, insulin resistance, and metabolic syndrome.