Composition for preventing or treating cervical cancer having human papillomavirus plasmodium and immunity enhancer
A composition for preventing or treating cervical cancer comprising a human papillomavirus plasmodium and an immunity enhancer is provided. A fusion protein including a fusion polypeptide recombined to transform a 3D structure of E6 and E7, which are antigens against types 16 and 18 human papillomavirus (HPV), a signal peptide for secreting the fusion polypeptide outside the cells and an immunity enhancer peptide present in an individual is also provided. The fusion protein may be useful in treating HPV-triggered tumors by inducing an immune response specific to the antigens against the HPV types 16 and 18.
1. A polynucleotide encoding a fusion protein comprising the sequence of SEQ ID NO:1.
2. The polynucleotide of claim 1 , further comprising a nucleic acid sequence encoding an immunity enhancer peptide.
3. The polynucleotide of claim 2 , wherein the immunity enhancer peptide is selected from a CD40 ligand, an fms-like tyrosine kinase-3 (Flt3) ligand, a flagellin, and an OX40.
4. The polynucleotide of claim 2 , wherein the immunity enhancer peptide comprises the sequence of SEQ ID NO: 3.
5. The polynucleotide of claim 1 , further comprising a nucleic acid sequence encoding a signal peptide.
6. The polynucleotide of claim 5 , wherein the signal peptide is selected from a tissue plasminogen activator (“tPa”) signal peptide, a Herpes Simplex Virus glycoprotein Ds (“HSV gDs”) signal peptide, and a growth hormone signal peptide.
7. The polynucleotide of claim 5 , wherein the signal peptide comprises the sequence of SEQ ID NO: 2.
8. The polynucleotide of claim 1 , which is codon optimized.
9. The polynucleotide of claim 8 , comprising the sequence of SEQ ID NO: 4.
10. The polynucleotide of claim 2 , wherein the nucleic acid sequence encoding the immunity enhancer peptide is codon optimized.
11. The polynucleotide of claim 5 , wherein the nucleic acid sequence encoding the signal peptide is codon optimized.
12. The polynucleotide of claim 11 , which comprises the nucleotide sequences of SEQ ID NO: 4, SEQ ID NO: 5, and SEQ ID NO: 6.
13. A vector comprising the polynucleotide of claim 8 .
14. A vector comprising the polynucleotide of claim 9 .
15. The vector of claim 14 , which is a plasmid.
16. A host cell comprising the vector of claim 13 .
17. A composition comprising the polynucleotide of claim 1 and a pharmaceutically allowable carrier.
18. A composition comprising the polynucleotide of claim 9 and a pharmaceutically allowable carrier.
19. A composition comprising the vector of claim 15 and a pharmaceutically allowable carrier.
20. A fusion protein comprising an amino acid sequence, which is encoded by the polynucleotide of claim 1 .
21. A fusion protein comprising an amino acid sequence, which is encoded by the polynucleotide of claim 2 .
22. A method of expressing a fusion protein comprising transfecting the polynucleotide of claim 1 to a host cell under suitable condition.
23. A method of producing a fusion protein, comprising culturing the host cell of claim 16 under suitable conditions.
24. A method of inducing a T cell immune response to a subject in need thereof comprising administering the polynucleotide of claim 1 to the subject, wherein the T cell immune response is against an E6 protein of HPV serotype 16, an E7 protein of HPV serotype 16, an E6 protein of HPV serotype 18, and an E7 protein of HPV serotype 18.
25. A method of reducing the volume of a tumor triggered by HPV infection in a subject in need thereof comprising administering the polynucleotide of claim 1 to the subject, wherein the tumor volume is reduced after the administration.