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Related Experiment Video

Updated: Jun 26, 2026

Intraductal Injection of LPS as a Mouse Model of Mastitis: Signaling Visualized via an NF-κB Reporter Transgenic
08:51

Intraductal Injection of LPS as a Mouse Model of Mastitis: Signaling Visualized via an NF-κB Reporter Transgenic

Published on: September 4, 2012

Cryptotanshinone Inhibits Staphylococcus aureus-Induced Mastitis by Inhibiting Ferroptosis Through Activating

Zimeng Liu1, Yunpeng Gao1, Musen Li1

  • 1College of Animal Science and Technology, Jilin Agriculture Science and Technology University, Jilin City, China.

Journal of Biochemical and Molecular Toxicology
|June 25, 2026
PubMed
Summary

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Clinical Significance of Antibiotic Resistance

Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...

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Cryptotanshinone (CPT) effectively treats Staphylococcus aureus-induced mastitis by reducing inflammation and ferroptosis. This study reveals CPT activates the Nrf2/GPX4 pathway, offering a promising therapeutic strategy for mastitis.

Area of Science:

  • Gynecological Health
  • Inflammatory Diseases
  • Molecular Biology

Background:

  • Mastitis is a common gynecological disorder frequently caused by Staphylococcus aureus.
  • Cryptotanshinone (CPT) exhibits anti-oxidative and anti-inflammatory properties, but its role in mastitis is unclear.

Purpose of the Study:

  • To investigate the protective effects of CPT against Staphylococcus aureus-induced mastitis.
  • To elucidate the molecular mechanisms underlying CPT's therapeutic action.

Main Methods:

  • A mouse model of Staphylococcus aureus-induced mastitis was established.
  • CPT was administered for therapeutic intervention.
  • In vitro studies used mouse mammary epithelial cells (MMECs) to assess CPT's effects on inflammatory markers and ferroptosis.
Keywords:
Nrf2cryptotanshinoneferroptosisinflammationmastitis

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Last Updated: Jun 26, 2026

Intraductal Injection of LPS as a Mouse Model of Mastitis: Signaling Visualized via an NF-&kappa;B Reporter Transgenic
08:51

Intraductal Injection of LPS as a Mouse Model of Mastitis: Signaling Visualized via an NF-κB Reporter Transgenic

Published on: September 4, 2012

Main Results:

  • CPT treatment reduced pro-inflammatory cytokines and inhibited ferroptosis in vivo.
  • In vitro, CPT decreased TNF-α, IL-1β, MDA, ROS, and Fe2+ levels while restoring ATP and GSH.
  • CPT upregulated GPX4, Nrf2, and HO-1 expression, with Nrf2 knockdown abrogating CPT's protective effects.

Conclusions:

  • CPT demonstrates significant protective effects against Staphylococcus aureus-induced mastitis.
  • CPT ameliorates mastitis by suppressing inflammation and ferroptosis via the Nrf2/GPX4 signaling pathway.