Stem Cell, Precursor Cell, or Target Cell-Based Treatment of Multi-Organ Failure and Renal Dysfunction

Abstract

Methods for the treatment of acute renal failure, multi-organ failure, early dysfunction of kidney transplant, chronic renal failure, organ dysfunction, and wound healing are provided. The methods include delivering a therapeutic amount of hematopoietic stem cells, non-hematopoietic, mesenchymal stem cells, hemangioblasts, and pre-differentiated cells to a patient in need thereof.

Description

RELATED APPLICATIONS[0001]This application is a continuation of U.S. application Ser. No. 10 / 551,317, filed Sep. 29, 2005, which a National Stage of International Application No. PCT / US2004 / 009922, filed Mar. 31, 2004, which claims priority to U.S. Provisional Application No. 60 / 459,554, filed Apr. 1, 2003 and U.S. Provisional Application No. 60 / 475,178, filed Jun. 2, 2003, which are hereby incorporated by reference in their entireties.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]The subject matter described herein was in-part made possible by support from the Department of Veterans Affairs. The government has certain rights in the invention.FIELD OF THE INVENTION[0003]The present invention generally relates to methods for treating organ dysfunction, multi-organ failure and renal dysfunction, including, but not limited to acute renal failure, transplant associated acute renal failure, chronic renal failure, and wound healing. More specifically, the inventive ...

AI Technical Summary

Benefits of technology

This patent provides methods of treating various kidney and organ failure conditions using stem cells. These methods include delivering a therapeutic amount of stem cells or a stimulant of stem cell mobilization to a patient in need. The stem cells can be pre-differentiated or non-transformed, and can be administered alone or in combination with other stem cells or other therapeutic agents. The technical effects of this patent include improved treatment options for acute and chronic kidney failure, as well as early dysfunction of kidney transplant, wound healing, and multi-organ failure.

Problems solved by technology

Multi-organ failure (MOF) remains a major unresolved medical problem.

Many of these patients have serious impairment of the healing of surgical or trauma wound, and, when infected, these wounds further contribute to recurrent infections, morbidity and death.

The most common cause of ARF is an ischemic insult of the kidney resulting in injury of renal tubular and postglomerular vascular endothelial cells.

Both ischemic and nephrotoxic forms of ARF result in dysfunction and death of renal tubular and microvascular endothelial cells.

However, the self-regeneration capacity of the surviving tubular and vascular endothelial cells may be exceeded in severe ARF.

This dismal prognosis has not improved despite intensive care support, hemodialysis, and the recent use of atrial natriuretic peptide, Insulin-like Growth Factor-I (IGF-I), more biocompatible dialysis membranes, continuous hemodialysis, and other interventions.

The risk of TA-ARE is increased with elderly donors and recipients, marginal graft quality, significant comorbidities and prior transplants in the recipient, and an extended period of time between harvest of the donor kidney from a cadaveric donor and its implantation into the recipient, known as “cold ischemia time.” Early graft dysfunction or TA-ARF has serious long-term consequences, including accelerated graft loss due to progressive, irreversible loss in kidney function that is initiated by TA-ARF, and an increased incidence of acute rejection episodes leading to premature loss of the kidney graft.

Currently available forms of therapy, such as the administration of angiotensin converting enzyme inhibitors, angiotensin receptor blockers, other anti-hypertensive and anti-inflammatory drugs such as steroids, cyclosporine and others, lipid lowering agents, omega-3 fatty acids, a low protein diet, and optimal weight, blood pressure and blood sugar control, particularly in diabetics, can significantly slow and occasionally arrest the chronic loss of kidney function in the above conditions.

Despite these successes, the annual growth of patient numbers with ESRD, requiring chronic dialysis or transplantation, remains at 6%, representing a continuously growing medical and financial burden.

Taken together, therapies that are currently utilized in the treatment of ARF, the treatment of established ARF of native kidneys per se or as part of MOF, and ARF of the transplanted kidney, and organ failure in general have not succeeded to significantly improve morbidity and mortality in this large group of patients.

The intracoronary administration of stem cells in humans with myocardial infarction or coronary artery disease has most recently been reported to result in significant adverse events such as acute myocardial infarction, other complications and death.