2002
DOI: 10.1111/j.1749-6632.2002.tb05927.x
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Microgravity Studies of Cells and Tissues

Abstract: Controlled in vitro studies of cells and tissues under the conditions of microgravity (simulated on Earth, or actual in space) can improve our understanding of gravity sensing, transduction, and responses in living cells and tissues. This paper discusses the scientific results and practical implications of three NASA-related biotechnology projects: ground and space studies of microgravity tissue engineering (JSC-Houston), and the development of the cell culture unit for use aboard the International Space Stati… Show more

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Cited by 51 publications
(24 citation statements)
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“…Early theoretical analyses by Pollard (201) similarly concluded that the threshold for microgravity to produce an effect on cells was about 10 m in diameter, which is larger than most bacterial cells. A review of the literature from the decades that followed, however, reveals that a variety of differences in microbial growth and behavior have in fact been observed as a result of spaceflight, with the results presumably attributable to some aspect of weightlessness (132,146,186,200,257).…”
Section: Role Of Gravity In Basic Biological Processesmentioning
confidence: 99%
“…Early theoretical analyses by Pollard (201) similarly concluded that the threshold for microgravity to produce an effect on cells was about 10 m in diameter, which is larger than most bacterial cells. A review of the literature from the decades that followed, however, reveals that a variety of differences in microbial growth and behavior have in fact been observed as a result of spaceflight, with the results presumably attributable to some aspect of weightlessness (132,146,186,200,257).…”
Section: Role Of Gravity In Basic Biological Processesmentioning
confidence: 99%
“…However, the precise individual contribution of these forces on particles or microbes in the RWV is not clear and requires further research. We refer the reader to some excellent reviews that extensively discuss the technical aspects of the forces that affect growth in the RWV environment (33,42,58,59,61,105). There are two compelling reasons why the RWV growth environment is a microgravity analogue.…”
Section: Rotating-wall Vessel Culture Apparatus and The Low-shear Modmentioning
confidence: 99%
“…The fluid mechanics that affect objects in the RWV have been evaluated in detail (42,58,82,105). Basically, particles or cells in the RWV are in a state of constant fluid suspension such that hydrodynamic forces offset the gravitational sedimentation of the bacteria in the reactor, allowing the organism to fall at a constant terminal velocity without being allowed to settle on the bottom of the apparatus (Fig.…”
Section: Rotating-wall Vessel Culture Apparatus and The Low-shear Modmentioning
confidence: 99%
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“…Complex tissue-like 3D constructs, different cell types from various origins and various intact tissue explants have been demonstrated, by our group and others, to be kept efficiently in culture by these bioreactors, even for long periods of time (Unsworth & Lelkes, 1998;Hammond & Hammond, 2001;Vunjak-Novakovic et al, 2002;Nickerson et al, 2007;Cosmi et al, 2009;Steimberg et al, 2009Mazzoleni et al, 2011). Figure 5 shows selected examples of RCCS TM -based tissue culture methods, developed and optimised by our group, and their advantages.…”
Section: Bioreactors and Relative Microgravity Conditionmentioning
confidence: 99%