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Updated: May 8, 2026

A RANKL-based Osteoclast Culture Assay of Mouse Bone Marrow to Investigate the Role of mTORC1 in Osteoclast Formation
Published on: March 15, 2018
SLAT negatively regulates RANKL-induced osteoclast differentiation
Bang Ung Youn1, Kabsun Kim, Jung Ha Kim
1Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju, 501-746, Korea.
SWAP-70-like adapter of T cells (SLAT) negatively regulates osteoclast formation. Reduced SLAT expression enhances osteoclastogenesis and NFATc1 expression, suggesting SLAT
Area of Science:
- Cell Biology
- Immunology
- Bone Biology
Background:
- Osteoclasts are crucial for bone resorption, a process regulated by RANKL.
- Osteoclastogenesis involves complex signaling pathways and molecular regulators.
- The role of SWAP-70-like adapter of T cells (SLAT) in osteoclastogenesis is not well understood.
Purpose of the Study:
- To investigate the function of SLAT in RANKL-induced osteoclastogenesis.
- To determine the effect of SLAT expression levels on osteoclast formation and activity.
- To elucidate the molecular mechanisms by which SLAT influences osteoclastogenesis.
Main Methods:
- Bone marrow-derived macrophages (BMMs) were used to study osteoclast formation.
- SLAT expression was manipulated using overexpression and RNA interference (RNAi).
- Osteoclast formation was assessed by TRAP staining, and gene expression (NFATc1) and signaling pathways (JNK) were analyzed.
Main Results:
- SLAT expression decreased during RANKL-induced osteoclastogenesis.
- Overexpression of SLAT inhibited osteoclast formation and NFATc1 expression.
- Silencing SLAT using RNAi enhanced osteoclast formation and NFATc1 expression.
- SLAT was found to be involved in RANKL-induced JNK activation.
Conclusions:
- SLAT acts as a negative regulator of RANKL-induced osteoclastogenesis.
- Modulating SLAT levels can impact osteoclast formation and bone resorption.
- SLAT plays a role in regulating key signaling pathways during osteoclast differentiation.
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