Pasteurized Akkermansia muciniphila alleviates high-fat diet-induced bone loss via Nr4a1-dependent Treg differentiation - Report - MDSpire

Pasteurized Akkermansia muciniphila alleviates high-fat diet-induced bone loss via Nr4a1-dependent Treg differentiation

  • By

  • Si Chen

  • Chenyang Zhang

  • Xue Liu

  • Yiying Zhu

  • Chenguang Niu

  • Wanqi Lv

  • May 22, 2026

  • 0 min

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Clinical Report: Pasteurized Akkermansia muciniphila Reduces Bone Loss

Overview

This study investigates the effects of pasteurized Akkermansia muciniphila (pAkk) on bone loss induced by a high-fat diet in obese mice, focusing on regulatory T cell differentiation and the role of the nuclear hormone receptor Nr4a1.

Background

Obesity is linked to bone metabolism disruption, increasing the risk of osteoporosis and fractures. Gut microbiota dysbiosis is a significant factor in obesity-related bone loss.

Data Highlights

ParameterpAkkLive AkkControl
Bone Formation Marker (P1NP)IncreasedNo ChangeNo Change
Bone Resorption Marker (β-CTX)DecreasedNo ChangeNo Change
Osteoclast DifferentiationInhibitedNo EffectNo Effect

Key Findings

  • pAkk administration rescued HFD-induced bone loss in obese mice.
  • pAkk increased bone formation markers and decreased resorption markers.
  • pAkk promoted Treg differentiation via CD103+ dendritic cells.
  • Nr4a1 was essential for Treg differentiation and mediating pAkk's effects.
  • pAkk inhibited osteoclastogenesis through Treg suppression.

Clinical Implications

The findings indicate a potential role for pasteurized Akkermansia muciniphila in addressing obesity-related bone loss.

Conclusion

Pasteurized Akkermansia muciniphila may influence bone loss associated with obesity through mechanisms involving gut microbiota.

Related Resources & Content

  1. Author(s)/Org, Source, Year -- Title
  2. the analytical scientist — Oral Bacteria Linked to Bone Loss in Mouse Study
  3. Frontiers in Endocrinology — Gut microbiota orchestrates bone homeostasis: a multi-pathway network from intestine to skeleton
  4. Frontiers in Immunology — Macrophage polarization regulates bone homeostasis: a potential etiology and therapy for postmenopausal osteoporosis
  5. Basic Research in Cardiology — The Role of Endothelial ACKR3 in Atherosclerosis: Enhancing Immune Cell Adhesion to Vascular Endothelium
  6. Oral Bacteria Linked to Bone Loss in Mouse Study
  7. Gut microbiota orchestrates bone homeostasis: a multi-pathway network from intestine to skeleton
  8. Macrophage polarization regulates bone homeostasis: a potential etiology and therapy for postmenopausal osteoporosis
  9. Osteoporosis to Prevent Fractures: Screening | United States Preventive Services Taskforce
  10. Efficacy and safety of probiotic/synbiotic supplementation for osteoporosis: a meta-analysis of randomized controlled trials
  11. Pasteurized Akkermansia muciniphila MucT for weight loss maintenance in people with overweight and obesity: a controlled randomized trial | Nature Medicine

Original Source(s)

Pasteurized Akkermansia muciniphila alleviates high-fat diet-induced bone loss via Nr4a1-dependent Treg differentiation

  • by Si Chen, Chenyang Zhang, Xue Liu, Yiying Zhu, Chenguang Niu, Wanqi Lv

  • May 22, 2026

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