Mixed cell populations for tissue repair and separation...

Drug – bio-affecting and body treating compositions – Whole live micro-organism – cell – or virus containing – Animal or plant cell

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C435S347000

Reexamination Certificate

active

07871605

ABSTRACT:
The present invention provides a fluid exchange cell culture technique and tissue repair cells (TRCs) made by these methods, as well as methods using these cells. The method includes a new wash step which increases the tissue repair properties of the TRCs of the invention. This wash step allows for the production of TRC populations with greater tissue repair and anti -inflammatory capabilities. Embodiments of the present invention include a post-culture process for cultured cells that preferably includes the steps of: a wash process for removing unwanted residual culture components, a volume reduction process, and a harvesting process to remove cultured cells. Preferably, all these steps are performed within a aseptically closed cell culture chamber by implementing a separation method that minimizes mechanical disruption of the cells and is simple to automate. The harvested cells may then be concentrated to a final volume for the intended use. In such embodiments, the final composition is a substantially purified and concentrated cell mixture suspended in a physiologic solution suitable for immediate use in humans without further washing, volume reduction, or processing. Embodiments are also applicable to harvesting (and/or washing) particles within a liquid or solution within a chamber.

REFERENCES:
patent: 4839292 (1989-06-01), Cremonese
patent: 5437994 (1995-08-01), Emerson et al.
patent: 5459069 (1995-10-01), Palsson et al.
patent: 5486359 (1996-01-01), Caplan et al.
patent: 5605822 (1997-02-01), Emerson et al.
patent: 5635386 (1997-06-01), Palsson et al.
patent: 5646043 (1997-07-01), Emerson et al.
patent: 5670147 (1997-09-01), Emerson et al.
patent: 5670351 (1997-09-01), Emerson et al.
patent: 5688687 (1997-11-01), Palsson et al.
patent: 5763266 (1998-06-01), Palsson et al.
patent: 5811094 (1998-09-01), Caplan et al.
patent: 5888807 (1999-03-01), Palsson et al.
patent: 5914108 (1999-06-01), Tsukamoto et al.
patent: 5985653 (1999-11-01), Armstrong et al.
patent: 5994129 (1999-11-01), Armstrong et al.
patent: 6048721 (2000-04-01), Armstrong et al.
patent: 6096532 (2000-08-01), Armstrong et al.
patent: 6228635 (2001-05-01), Armstrong et al.
patent: 6238908 (2001-05-01), Armstrong et al.
patent: 6326198 (2001-12-01), Emerson et al.
patent: 6328960 (2001-12-01), McIntosh et al.
patent: 6355239 (2002-03-01), Bruder et al.
patent: 6368636 (2002-04-01), McIntosh et al.
patent: 6387367 (2002-05-01), Davis-Sproul et al.
patent: 6387369 (2002-05-01), Pittenger et al.
patent: 6541024 (2003-04-01), Kadiyala et al.
patent: 6667034 (2003-12-01), Palsson et al.
patent: 6676937 (2004-01-01), Isner et al.
patent: 6777231 (2004-08-01), Katz et al.
patent: 6797269 (2004-09-01), Mosca et al.
patent: 6835566 (2004-12-01), Smith et al.
patent: 6863900 (2005-03-01), Kadiyala et al.
patent: 6875430 (2005-04-01), McIntosh et al.
patent: 6878371 (2005-04-01), Ueno et al.
patent: 7015037 (2006-03-01), Furcht et al.
patent: 7029666 (2006-04-01), Bruder et al.
patent: 7097832 (2006-08-01), Kornowski et al.
patent: 7101704 (2006-09-01), Mosca
patent: 7122178 (2006-10-01), Simmons et al.
patent: 2003/0022210 (2003-01-01), Bonyhadi et al.
patent: 2003/0170238 (2003-09-01), Gruenberg et al.
patent: 2006/0073124 (2006-04-01), Garcia Castro et al.
patent: WO 2006/053629 (2006-05-01), None
patent: WO 2006/086716 (2006-08-01), None
patent: WO 2006/105219 (2006-10-01), None
Aggarwal et al., “Human mesenchymal stem cells modulate allogeneic immune cell responses”,Blood, 105(4):1815-1822 (2005).
Armstrong et al., “Continuous medium perfusion during ex vivo expansion of human CD8+ T-cells produces high density cultures and enhances proliferation potential and lymphokine release”,Exp. Hematol., Abstract #549, 25:886 (1997).
D'Arc et al., “Micro macroporous biphasic ceramics and fibrin sealant as a moldable material for bone reconstruction in chronic otitis media surgery. A 15 years experience”,J. Mater. Sci. Mater. Med., 14:229-233 (2003).
Betz, R.R., “Limitations of Autograft and Allograft: New Synthetic Solutions”,Orthopedics, 25(5/Suppl.):s561-s570 (2002).
Caldwell et al., “Culture Perfusion Schedules Influence the Metabolic Activity and Granulocyte-Macrophage Colony-Stimulating Factor Production Rates of Human Bone Marrow Stromal Cells”,J. Cell. Physiol., 147:344-353 (1991).
Carreno et al., “The B7 Family of Ligands and Its Receptors: New Pathways for Costimulation and Inhibition of Immune Responses”,Annu. Rev. Immunol., 20:29-53 (2002).
Colnot et al., “Mechanisms of Action of Demineralized Bone Matrix in the Repair of Cortical Bone Defects”,Clin. Orthop. Rel. Res., 435:69-78 (2005).
“Content and Review of Chemistry, Manufacturing, and Control (CMC) Information for Human Gene Therapy Investigational New Drug Applications (INDs)”, inGuidance for FDA Reviewers and Sponsors, pp. 1-41, U.S. Dept of Health & Human Services FDA Center for Biologics Evaluation & Res. (2008).
Deans et al., “Mesenchymal stem cells: Biology and potential clinical uses”,Exp. Hematol., 28:875-884 (2000).
Dennis et al., “In VivoBone Formation of Marrow-Derived Cells Correlates With CD105, CD166, and Thyl Cell Surface Markers”,J. Bone Min. Res., Abstract only, 19(Suppl. 1):S266 (2004).
Dennis et al., “Optimizing Bone Marrow-Derived Osteogenic Progenitor Cell Expansion Using the Replicell® Bioreactor System”,J. Bone Min. Res., Abstract only, 20:S247 (2005).
Devine, S.M., “Mesenchymal Stem Cells: Will They Have a Role in the Clinic?”,J. Cell. Biochem., 38(Suppl.):73-79 (2002).
Diehl et al., “Induction of NFATc2 Expression by Interleukin 6 Promotes T Helper Type 2 Differentiation”,J. Exp. Med., 196(1):39-49 (2002).
Diehl et al., “The two faces of IL-6 on Th1/Th2 differentiation”,Mol. Immunol., 39:531-536 (2002).
Duffield, J.S., “The inflammatory macrophage: a story of Jekyll and Hyde”,Clin. Sci.(Lond), 104:27-38 (2003).
Ermann et al., “Only the CD62L+subpopulation of CD4+CD25+regulatory T cells protects from lethal acute GVHD”,Blood, 105(5):2220-2226 (2005).
Fändrich et al., “Future Strategies for Tolerance Induction: A Comparative Study Between Hematopoietic Stem Cells and Macrophages”,Hum. Immunol., 63:805-812 (2002).
Freeman et al., “Engagement of the PD-1 Immunoinhibitory Receptor by a Novel B7 Family Member Leads to Negative Regulation of Lymphocyte Activation”,J. Exp. Med., 192(7):1027-1034 (2000).
Gabrilovich et al., “Vascular Endothelial Growth Factor Inhibits the Development of Dendritic Cells and Dramatically Affects the Differentiation of Multiple Hematopoietic Lineages In Vivo”,Blood, 92(11):4150-4166 (1998).
Gordon, S., “Alternative Activation of Macrophages”,Nat. Rev. Immunol., 3:23-35 (2003).
Graca et al., “Both CD4+CD25+and CD4+CD25−Regulatory Cells Mediate Dominant Transplantation Tolerance”,J. Immunol., 168:5558-5565 (2002).
Gratchev et al., “Alternatively Activated Antigen-Presenting Cells: Molecular Repertoire, Immune Regulation, and Healing”,Skin Pharmacol. Appl. Skin Physiol., 14:272-279 (2001).
Gronthos et al., “Surface Protein Characterization of Human Adipose Tissue-Derived Stromal Cells”, J. Cell. Physiol., 189:54-63 (2001).
Guardino et al., “Production of myeloid dendritic cells (DC) pulsed with tumor-specific idiotype protein for vaccination of patients with multiple myeloma”,Cytotherapy, 8(3):277-289 (2006).
Hoffmann et al., “CD4+CD25+Regulatory T Cells in Hematopoietic Stem Cell Transplantation”,Curr. Top. Microbiol. Immunol., 293:265-285 (2005).
Hofmann et al., “The influence of bone allograft processing on osteoblast attachment and function”,J. Orthop. Res., 23:846-854 (2005).
Jaroscak et al., “Augmentation of umbilical cord blood (UCB) transplantation with ex vivo-expanded UCB cells: results of a phase 1 trial using the

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Mixed cell populations for tissue repair and separation... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mixed cell populations for tissue repair and separation..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mixed cell populations for tissue repair and separation... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2712444

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.