| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Outline of Final Research Achievements |
Our previous in vitro studies indicated that the CRELD1 could be a general regulator for multiple G-protein coupled receptors including adrenaline and/or muscarinic acetylcholine receptors. To obtain experimental evidence to support these observations, we created CRELD1 knock-out mice. At least for the heterozygous mice which carried one null allele for CRELD1, showed no significant receptor amount difference to their wild type litter mates. However, we made remarkable observation that these apparently healthy CRELD1 knock-out heterozygous animals developed later terrible maxillary sinus carcinoma at anomalous high frequency. Previous studies identified that 3p25, where human CRELD1 exists , as a candidate locus for the maxillary carcinoma. Although most researchers hypothesize several other tumor suppressor genes as powerful candidate genes, CRELD1 might be a genuine causative gene for the carcinoma. This study highlighted a potential importance of CRELD1 as a disease related gene.
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