RIP140 regulation of diabetes
Inhibition of RIP140 increases glucose transport. Compounds that inhibit RIP140 expression or activity are useful for treating disorders associated with aberrant glucose transport (e.g., diabetes), treating obesity, increasing metabolism (e.g., fatty acid metabolism), and increasing brown fat.
1. A method for increasing 2-deoxyglucose transport into an adipocyte cell, the method comprising:
providing an adipocyte cell; and
contacting the adipocyte cell with an oligonucleotide selected from the group consisting of an inhibitory RNA, an antisense oligonucleotide, and a ribozyme, wherein said oligonucleotide inhibits RIP140 mRNA expression in the adipocyte cell, thereby increasing 2-deoxyglucose transport into the adipocyte cell.
2. The method of claim 1 , wherein the oligonucleotide is an inhibitory RNA.
3. The method of claim 2 , wherein the inhibitory RNA is a small inhibitory RNA (siRNA).
4. The method of claim 1 , wherein the adipocyte cell is contacted in vitro.
5. The method of claim 1 , wherein the adipocyte cell is contacted in vivo.
6. The method of claim 3 , wherein the siRNA comprises a sequence selected from SEQ ID NO:1, SEQ ID NO:2, SEQ ID NO:3, and SEQ ID NO:4.
7. The method of claim 1 , wherein the oligonucleotide enhances expression of GLUT4 protein in the adipocyte cell.
8. A method for increasing 2-deoxyglucose transport into an adipocyte cell in a subject that is at risk for or suffering from a disorder related to glucose metabolism, the method comprising: administering to the subject an oligonucleotide selected from the group consisting of an inhibitory RNA, an antisense oligonucleotide, and a ribozyme, wherein said oligonucleotide inhibits RIP140 mRNA expression in an amount sufficient to increase 2-deoxyglucose transport into an adipocyte cell in the subject, thereby increasing 2-deoxyglucose transport into an adipocyte cell in the subject.
9. The method of claim 8 , wherein the disorder is type I diabetes, type II diabetes, or obesity.
10. The method of claim 1 , wherein the oligonucleotide is an antisense oligonucleotide.
11. The method of claim 1 , wherein the oligonucleotide is a ribozyme.
12. The method of claim 8 , wherein the oligonucleotide is an inhibitory RNA.
13. The method of claim 12 , wherein the inhibitory RNA is a small inhibitory RNA (siRNA).
14. The method of claim 13 , wherein the siRNA comprises a sequence selected from SEQ ID NO:1, SEQ ID NO:2, SEQ ID NO:3, and SEQ ID NO:4.
15. The method of claim 8 , wherein the oligonucleotide is an antisense oligonucleotide.
16. The method of claim 8 , wherein the oligonucleotide is a ribozyme.
17. The method of claim 8 , wherein the oligonucleotide enhances expression of GLUT4 protein in the adipocyte cell.