Mesenchymal stem cell analysis in models of acute and chronic renal ischemia

• Grant number: 06/00620-5
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: July 01, 2006
• End date: June 30, 2009
• Field of knowledge: Health Sciences - Medicine
• Principal Investigator: Niels Olsen Saraiva Câmara
• Grantee: Patricia Semedo Kuriki
• Host Institution: Escola Paulista de Medicina (EPM). Universidade Federal de São Paulo (UNIFESP). Campus São Paulo. São Paulo , SP, Brazil

Abstract

Acute renal failure (ARF) is related to toxic and ischemic injuries. The best therapeutic option for patients with chronic renal failure (CRF) is the kidney transplantation. However, the demand for kidneys outstrips the supply. Therefore, alternative therapies are important to overcome this problem. And, in this context, the stem cells therapy stands.Until now, little is known about mechanisms of stem-cells repair: if they repair the tissue by themselves or if they act indirectly in this process, by some factor secretion. On the other hand, it is known that stem cells can be expanded ex-vivo, and also they can be manipulated for gene therapy.In this study, we will focus on the homing of stem cell and on the chemokines secretion for injured kidney that seems to attract them to the site. We also will study whether stem cells are able to limit CRF. By using mesenchymal stem cells (MSC) and ARF and CRF models, we intend to demonstrate their pattern of homing and their capacity of regenerating acute and chronic injuries. Moreover, we intend to increase the capacity of MSC in repairing fibrotic tissues and consequently, limiting renal failure, by transfecting them with Smad-7 gene.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SEMEDO, PATRICIA; DONIZETTI-OLIVEIRA, CASSIANO; BURGOS-SILVA, MARINA; CENEDEZE, MARCO ANTONIO; AVANCINI COSTA MALHEIROS, DENISE MARIA; PACHECO-SILVA, ALVARO; SARAIVA CAMARA, NIELS OLSEN. Bone marrow mononuclear cells attenuate fibrosis development after severe acute kidney injury. LABORATORY INVESTIGATION, v. 90, n. 5, p. 685-695, MAY 2010. (07/07139-3, 06/00620-5)

ALEXANDRE‚ C.S.; VOLPINI‚ R.A.; SHIMIZU‚ M.H.; SANCHES‚ T.R.; SEMEDO‚ P.; DI JURA‚ V.L.; CAMARA‚ N.O.; SEGURO‚ A.C.; ANDRADE‚ L.. Lineage-Negative Bone Marrow Cells Protect Against Chronic Renal Failure. Stem Cells, v. 27, n. 3, p. 682-692, 2009. (07/07139-3, 06/00620-5)

SEMEDO‚ P.; PALASIO‚ C.G.; OLIVEIRA‚ C.D.; FEITOZA‚ C.Q.; GON{\=E}ALVES‚ G.M.; CENEDEZE‚ M.A.; WANG‚ P.M.H.; TEIXEIRA‚ V.; REIS‚ M.A.; PACHECO-SILVA‚ A.; et al. Early modulation of inflammation by mesenchymal stem cell after acute kidney injury. International Immunopharmacology, v. 9, n. 6, p. 677-682, 2009. (06/00620-5)