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Updated: Mar 27, 2026

Culturing and Measuring Fetal and Newborn Murine Long Bones
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Col11a1 Regulates Bone Microarchitecture during Embryonic Development.

Anthony Hafez1, Ryan Squires2, Amber Pedracini1

  • 1Biomolecular Research Center, Boise State University, 1910 University Drive, Boise, ID 83706-1511, USA.

Journal of Developmental Biology
|January 19, 2016
PubMed
Summary
This summary is machine-generated.

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Collagen XI alpha 1 (Col11a1) is vital for bone formation, essential for skeletal mineralization during embryonic development. Its absence impairs trabecular and bone collar formation, highlighting its critical role in endochondral ossification.

Area of Science:

  • Biochemistry
  • Developmental Biology
  • Orthopedics

Background:

  • Collagen XI alpha 1 (Col11a1) is an extracellular matrix protein crucial for embryonic development.
  • Col11a1 nucleates fibril formation and regulates fibril diameter during collagen assembly.
  • It plays a critical role in endochondral ossification, the process of bone formation.

Purpose of the Study:

  • To investigate the function of Col11a1 in bone formation and skeletal mineralization.
  • To compare skeletal development in wild-type (WT) and Col11a1-deficient mice.

Main Methods:

  • X-ray microtomography (micro-CT) for detailed bone microstructure analysis.
  • Histological examination of skeletal tissues.
  • Comparison of WT and Col11a1-deficient mouse models.
Keywords:
Col11a1Collagen XIX-ray microtomographychondrodysplasiamineralization

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Main Results:

  • Col11a1 deficiency led to altered trabecular bone microstructure.
  • Periosteal bone collar thickness increased in Col11a1-deficient mice.
  • Vertebral bodies were incompletely formed in the absence of Col11a1, indicating impaired mineralization.

Conclusions:

  • Col11a1 expression in the growth plate and perichondrium is essential for proper trabecular and bone collar formation.
  • Col11a1 plays a critical role in skeletal mineralization during endochondral ossification.
  • These findings define Col11a1's function in mineralized tissue development.