Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Peptide containing doai
Reexamination Certificate
2003-01-08
2010-02-16
Audet, Maury (Department: 1654)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Peptide containing doai
C530S326000, C424S001690
Reexamination Certificate
active
07662768
ABSTRACT:
Pancreatic acinar cells contribute to β-cell neogenesis. Hamsters administered pentadecapeptide of INGAP protein demonstrated a 2-fold increase in the number of extra-islet acinar-associated β-cell clusters resulting in a 2.8-fold increase in the overall extra-islet β cell mass as compared to controls. In mammals acinar-to-β-cell differentiation provides an alternate pathway to β-cell neogenesis; INGAP peptide plays a significant role in this process.
REFERENCES:
patent: 5834590 (1998-11-01), Vinik et al.
patent: 5840531 (1998-11-01), Vinik et al.
patent: 2003/0138951 (2003-07-01), Yin
Bouwens L. “Transdifferentiation Versus Stem Cell Hypothesis for the Regeneration of Islet Beta-Cells in the Pancreas”, 1998, Microscopy Research And Technique, vol. 43. pp. 332-336.
Petropavlovskaia et al. “Development of an In Vitro Pancreatic Tissue Model to Study Regulation of Islet Neogenesis Associated Protein Expression”, 2006, Journal of Endocrinology, vol. 191. pp. 65-81.
Strumello. “Surprise: INGAP Moves Ahead!”. http://sstrumello.blogspot.com/2008/03/surpise-ingap-moves-ahead.html. Wednesday, Mar. 19, 2008.
Cell Differentiation Unit, Vrije Universiteit Brussel-Free University of Brussels, Brussels, Belgium, “Regulation of Pancreatic Beta-Cell Mass.”. http://www.100md.com/html/DirDu/2006/10/18/25/69/17.htm (2006)).
Yuan S. et al., “Phenotypic modulation of hamster acinar cells by culture in collagen matrix,” Exp Cell Res. (Dec. 15, 1997); 237(2):247-258 (Abstract only).
Rafaeloff R. et al., “Cloning and Sequencing of the Pancreatic Islet Neogenesis Associated Protein (INGAP) Gene and Its Expression in Islet Neogenesis in Hamsters,” J. Clin. Invest. (May 1997) vol. 99, No. 9, pp. 2100-2109.
Mendosa, R., “INGAP Peptide,” www.mendosa.com/ingap.htm, 2002.
Audet Maury
Banner & Witcoff , Ltd.
McGill University
LandOfFree
Transdifferentiation of pancreatic acinar cells does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transdifferentiation of pancreatic acinar cells, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transdifferentiation of pancreatic acinar cells will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4189086