| Autor: |
Clement JQ; Chemistry Department and NASA University Research Center, Texas Southern University, Houston, Texas, USA. clement_jq@tsu.edu, Lacy SM, Wilson BL |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology [J Gravit Physiol] 2007 Jul; Vol. 14 (1), pp. P121-2. |
| Abstrakt: |
Human exposure to microgravity is considered the major environmental factor of space flight that affects cells and tissues causing adverse effects to human health. Ground-based gravity-simulation experiments at the cellular and molecular levels have gained some insight into the underlying molecular and cellular alterations induced by microgravity. However, systematic study and detailed molecular mechanisms of the adverse effect of microgravity on living cells are still lacking. The main objective of this study was to apply DNA microarray technology in time-course experiments for genome-wide search of genes whose expression are altered by microgravity, as part of the effort in the identification of major space genes. In this study, we analyzed global gene expression profiles for a human liver cell line exposed to a ground-based modeled microgravity system for 1, 3, and 4 days using the rotary cell culture system (RCCS) and the Agilent 22k human oligo DNA microarrays. We have found that 139 genes' mRNA levels were significantly (P < or = 0.01) altered by the microgravity exposures. Some of these identified genes were further verified by Northern analysis. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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