|
1
|
SHANG PENG, ZHANG JIAN, QIAN AIRONG, LI JINGBAO, MENG RUI, DI SHENGMENG, HU LIFANG, GU ZHONGZE. BONE CELLS UNDER MICROGRAVITY. J MECH MED BIOL 2013. [DOI: 10.1142/s021951941340006x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Weightlessness environment (also microgravity) during the exploration of space is the major condition which must be faced by astronauts. One of the most serious adverse effects on astronauts is the weightlessness-induced bone loss due to the unbalanced bone remodeling. Bone remodeling of human beings has evolved during billions of years to make bone tissue adapt to the gravitational field of Earth (1g) and maintain skeleton structure to meet mechanical loading on Earth. However, under weightlessness environment the skeleton system no longer functions against the pull of gravity, so there is no necessity to keep bone strong enough to support the body's weight. Therefore, the balance of bone remodeling is disrupted and bone loss occurs, which is extremely deleterious to an astronaut's health during long-term spaceflight. Bone remodeling is mainly orchestrated by bone mesenchymal stem cells, osteoblasts, osteocytes, and osteoclasts. Here, we review how these bone cells respond to microgravity environment.
Collapse
Affiliation(s)
- PENG SHANG
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, 710072, Xi'an, P. R. China
- The State Key Laboratory of Bioelectonics, Southeast University, 210096, P. R. China
| | - JIAN ZHANG
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, 710072, Xi'an, P. R. China
| | - AIRONG QIAN
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, 710072, Xi'an, P. R. China
| | - JINGBAO LI
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, 710072, Xi'an, P. R. China
| | - RUI MENG
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, 710072, Xi'an, P. R. China
| | - SHENGMENG DI
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, 710072, Xi'an, P. R. China
| | - LIFANG HU
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, 710072, Xi'an, P. R. China
| | - ZHONGZE GU
- The State Key Laboratory of Bioelectonics, Southeast University, 210096, P. R. China
| |
Collapse
|