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논문 기본 정보

자료유형
학위논문
저자정보

임진영 (경북대학교, 경북대학교 대학원)

지도교수
배재성.
발행연도
2014
저작권
경북대학교 논문은 저작권에 의해 보호받습니다.

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이 논문의 연구 히스토리 (3)

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The majority of hematopoietic stem/progenitor cells (HSPCs), which reside in bone marrow (BM), have the potential for generation of stromal cells such as osteoblasts and osteoclasts. Destruction of osteoclast and osteoblast balance may lead to development of bone disease such as osteoporosis. Inhibition of an increase of osteoclasts has become the most important treatment for osteoporosis. The CXCR4 antagonist, AMD3100, plays an important role in mobilization of osteoclast precursors, HSPCs within the BM microenvironment. However, the actual therapeutic impact of AMD3100 in osteoporosis has not yet been ascertained. Here we demonstrate the therapeutic effect of AMD3100 in treatment of ovariectomy-induced osteoporosis in mice. We found that treatment with AMD3100 resulted in direct induction of release of SDF-1 from BM to blood and mobilization of HSPCs in an osteoporosis model. In addition, AMD3100 prevented bone density loss after ovariectomy by mobilization of HSPCs, suggesting a therapeutic strategy to reduce the number of osteoclasts on bone surfaces. These results support the hypothesis that treatment with AMD3100 can result in efficient mobilization of HSPCs into blood through direct blockade of the SDF-1/CXCR4 interaction in BM and is a potential new therapeutic intervention for osteoporosis.

목차

INTRODUCTION 1
MATERIALS AND METHODS 4
1. Animals and treatments 4
2. Quantitative real-time PCR 5
3. ELISA 6
4. Hematopoietic CFU assay 7
5. Flow cytomety 7
6. Micro-computed tomography 8
7. Osteoclast differentiation 9
8. Histological analysis 9
9. Statistical analysis 10
RESULTS 11
1. AMD3100 increases SDF-1level in blood of OVX mice 11
2. AMD3100 induces HSPCs mobilization in OVX mice 14
3. AMD3100 relieves OVX ?induced bone loss by reducing osteoclast number onto bone surface 16
DISCUSSION 20
REFERENCES 23
ABBREVIATIONS 27
ACKNOWLEDGMENTS 28
ABSTRACT IN KOREAN 29

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