🧬 Comprehensive Guide to Bone Cell Lines: Osteoblast, Osteoclast, and Chondrocyte Models

Bone biology research demands reliable, well-characterized in vitro models. This bone cell line guide provides a curated overview of widely used bone-related cell lines categorized into osteoblasts, osteoclasts, and chondrocytes. Each section includes origin, biological properties, and typical lab applications to help researchers choose the right model for their needs.

Scientific illustration showing osteoblasts and osteoclasts interacting on trabecular bone, with labeled structures such as nucleus, mitochondria, and ruffled border.

🦴 Osteoblast-Related Cell Lines

MC3T3-E1
Derived from the calvaria of C57BL/6 mice, MC3T3-E1 cells are pre-osteoblasts widely used in bone formation studies. These cells respond well to ascorbic acid and Ξ²-glycerophosphate, producing ALP and mineralized matrix.
πŸ”¬ Applications: Bone matrix formation, osteogenesis assays, biomaterial testing

MBA-15
This osteoblastic line originates from mouse bone marrow and retains stromal-like characteristics. It demonstrates increased ALP expression during osteogenic differentiation.
πŸ”¬ Applications: Bone marrow microenvironment modeling, osteoprogenitor research

MLO-Y4
A murine long bone-derived cell line that mimics osteocyte features. It exhibits dendritic morphology and mechanosensitivity through connexin 43 expression.
πŸ”¬ Applications: Osteocyte signaling, mechanotransduction, bone remodeling studies

MLO-A5
This sister line of MLO-Y4 is more mature and highly mineralizing. It expresses bone sialoprotein, osteocalcin, and forms calcified nodules.
πŸ”¬ Applications: Late-stage osteogenic differentiation, matrix mineralization

D1 ORL UVA
A mouse bone marrow stromal line with multipotent potential. It can differentiate into osteoblasts, chondrocytes, and adipocytes.
πŸ”¬ Applications: Regenerative medicine, scaffold compatibility studies

ROS 17/2.8
A rat osteosarcoma line with high ALP and partial hormonal responsiveness. It’s commonly used to study PTH and vitamin D pathways.
πŸ”¬ Applications: Hormonal signaling, osteoblast function, bone cancer modeling

UMR 106.06
Also derived from rat osteosarcoma, UMR 106.06 retains PTH receptor activity and osteoblast-like properties.
πŸ”¬ Applications: PTH signaling, gene regulation in osteoblasts

HOS / TE-85
A human osteosarcoma cell line with rapid proliferation but limited mineralization. Useful for genetic profiling and drug screening.
πŸ”¬ Applications: Bone cancer genetics, expression studies

MG-63
Human osteosarcoma-derived with moderate ALP and ECM expression. Frequently used for biocompatibility assays.
πŸ”¬ Applications: Surface-material interaction, osteoblast-like studies

SaOS-2
A human osteogenic sarcoma cell line with robust mineralization and osteogenic phenotype.
πŸ”¬ Applications: Mineralization studies, bone tissue engineering

hFOB 1.19
SV40-immortalized human fetal osteoblasts. Proliferate at 33.5Β°C and differentiate at 39.5Β°C.
πŸ”¬ Applications: Controlled osteogenesis, drug testing

HOBIT
Human immortalized osteoblast-like cells developed via viral transfection.
πŸ”¬ Applications: Osteoblast function, gene delivery experiments

Microscopic-style rendering of osteoblast, osteoclast, and chondrocyte cells in culture, with fluorescent markers indicating ALP, TRAP, and collagen type II expression.

🧨 Osteoclast-Related Cell Lines

RAW 264.7
A murine macrophage-derived cell line that differentiates into TRAP-positive osteoclasts upon RANKL stimulation.
πŸ”¬ Applications: Osteoclastogenesis, RANKL/M-CSF signaling

4B12
Embryonic mouse calvaria-derived cell line capable of forming multinucleated osteoclast-like cells under M-CSF and RANKL.
πŸ”¬ Applications: siRNA screening, TRAP staining assays

ER-Hoxb8
Conditionally immortalized murine progenitor cells that differentiate into osteoclasts, providing a renewable alternative to primary cultures.
πŸ”¬ Applications: Osteoclast differentiation models, transfection studies


🧊 Chondrocyte-Related Cell Lines

MC615
A mouse-derived chondrocytic cell line with cartilage matrix expression.
πŸ”¬ Applications: Basic cartilage biology, gene regulation

H4
Mature mouse articular chondrocyte line maintaining key phenotypes.
πŸ”¬ Applications: Joint biology, cartilage signaling

MM-Sv/HP-2
Immortalized with murine adenovirus, derived from mouse femoral cartilage.
πŸ”¬ Applications: Early chondrogenesis, vector-based research

C3H10T1/2
A multipotent murine mesenchymal stem-like line capable of chondrogenic, osteogenic, and adipogenic differentiation.
πŸ”¬ Applications: Lineage commitment, signaling pathways

CHON-001
Human fetal chondrocytes immortalized via hTERT. Express collagen type II and aggrecan.
πŸ”¬ Applications: Cartilage tissue engineering, drug testing

C20A4
Human articular cartilage-derived with robust ECM output.
πŸ”¬ Applications: Cartilage regeneration, scaffold evaluation

C28/I2 & T/C-28a2
SV40-immortalized human costal cartilage cells. Useful for inflammation and hormone studies.
πŸ”¬ Applications: Cytokine research, hormonal signaling

SW1353
A human chondrosarcoma line exhibiting IL-1 and TNF-Ξ± responses.
πŸ”¬ Applications: Cartilage degradation, osteoarthritis modeling


πŸ–ΌοΈ Visual Summary of bone cell line guide

  • Image 1: Osteoblast and Osteoclast Interactions on Bone Surface
    ALT: Illustration showing osteoblasts and osteoclasts interacting on trabecular bone with labeled cell structures.
  • Image 2: In Vitro Comparison of Osteoblast, Osteoclast, and Chondrocyte Cells
    ALT: Side-by-side cell culture image with ALP, TRAP, and collagen II markers.
  • Image 3: Lineage Diagram of Bone Cell Differentiation
    ALT: Infographic of stem cell differentiation into bone cell types with molecular markers.

Infographic showing the differentiation pathways from stem cells to osteoblasts, osteoclasts, and chondrocytes, with markers and bone microenvironment context.

πŸ“š Further Reading for bone cell line guide

  • ATCC Cell Line Database
  • PubMed Central Reviews on Bone Biology
  • Merck Millipore Cell Culture Technical Sheets

For downloadable formats or reference tables, stay tuned for the supplementary PDF version. Got a cell line we missed? Submit it via our contact form!

Scientific illustration showing osteoblasts and osteoclasts interacting on trabecular bone, with labeled structures such as nucleus, mitochondria, and ruffled border.

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