Transcription factor regulating TNF-α
Disclosed herein is an isolated polypeptide comprising the amino acid sequence set forth in SEQ ID NO: 1. The isolated polypeptide binds to the DNA binding domain located from −550 to −487 in the promoter of the human TNF-α gene. Additionally, the level of the mRNA transcript encoding the isolated polypeptide is substantially increased in response to LPS stimulation in cultured THP-1 cells.
1. A method for inhibiting lipopolysaccharide-induced tumor necrosis factor-alpha factor (LITAF)-dependent induction of tumor necrosis factor-alpha (TNF-α) gene expression in a human cell comprising the steps:
a) providing an antisense oligonucleotide that reduces or inhibits expression of the LITAF gene, wherein said antisense oligonucleotide comprises a sequence that is complementary to at least 150 contiguous nucleotides set forth within nucleotides 1-320 of SEQ ID NO: 2 including the start site of translation beginning at nucleotide 234 of SEQ ID NO: 2; and
b) delivering the antisense oligonucleotide into said cell; wherein said antisense oligonucleotide reduces or inhibits LITAF-dependent TNF-α gene expression in said cell.
2. The method of claim 1 , wherein said antisense oligonucleotide comprises a sequence that is complementary to at least 200 contiguous nucleotides.
3. The method of claim 1 , wherein the antisense oligonucleotide further comprises a sequence that is complementary to the downstream adjacent 3′ coding sequence set forth in SEQ ID NO: 2.
4. The method of claim 1 , wherein said antisense oligonucleotide comprises a sequence that is complementary to at least 320 contiguous.
5. The method of claim 4 , wherein the antisense oligonucleotide comprises a sequence that is complementary to nucleotides 1-320 of SEQ ID NO: 2.
6. The method of claim 1 , wherein said antisense oligonucleotide is encoded within a viral vector.
7. The method of claim 6 , wherein said viral vector is an adenoviral vector.
8. The method of claim 1 , wherein said antisense oligonucleotide is formulated in a liposome carrier.
9. The method of claim 1 , wherein said antisense oligonucleotide is a ribonucleic acid (RNA) molecule.