Delivery of trefoil peptides
View Patent ↗The present invention relates to a microorganism, preferably a bacterial strain, preferably a non-pathogenic strain, preferably a non-invasive strain, preferably a food grade strain, preferably a gram-positive bacterial strain, delivering a trefoil peptide in vivo. Preferably said trefoil peptide is TFF1. The present invention further relates to a method for the delivery of trefoil peptide to the gastro-intestinal tract comprising the administration of such a bacterial strain. The present invention also relates to a pharmaceutical composition comprising a trefoil peptide delivering bacterium as well as methods of treatment of acute gastro-intestinal inflammatory diseases comprising administration of said transformed bacterial strains, particularly for treating acute colitis, including but not limited to acute flare-ups of Crohn's disease and ulcerative colitis in humans, as well as for treating gastro-intestinal disorders of a similar nature in other animal species.
1. A method of treatment of a colon disorder in an individual comprising oral administration of a therapeutically effective amount of a recombinant food grade gram-positive bacterium expressing a trefoil peptide in the colon of said individual.
2. The method of claim 1 , wherein the colon disorder involves lesions.
3. The method of claim 1 , wherein the recombinant food grade gram-positive bacterium is a lactic acid fermenting bacterium.
4. The method of claim 3 , wherein the lactic acid fermenting bacterium is Lactococcus or Lactobacillus.
5. The method of claim 4 , wherein the Lactococcus is Lactococcus lactis.
6. The method of claim 1 , wherein the trefoil peptide is are TFF1 peptide.
7. The method of claim 1 , wherein the colon disorder is Crohn's disease (enteritis regionalis), ulcerative colitis (colitis ulcerosa) or acute colitis.
8. The method of claim 1 , wherein the oral administration is by a gastric catheter.
9. The method of claim 1 , wherein the recombinant food grade gram-positive bacterium comprises a recombinant vector comprising coding sequence of said trefoil peptide under the control of a suitable promoter sequence and a suitable secretion signal sequence.
10. The method of claim 1 , wherein the recombinant food grade gram-positive bacterium comprises the nucleotide sequence of SEQ ID NO. 1, SEQ ID NO. 2, or SEQ ID NO. 3.
11. The method of claim 1 , wherein the therapeutically effective amount of said recombinant food grade gram-positive bacterium is at least 10 8 cells of said bacterium.
12. The method of claim 1 , wherein the individual is a human or an animal.