Part I

Pathogenetic role of peroxynitrite in the development of diabetes and diabetic vascular complications: Studies with FP15, a novel potent peroxynitrite decomposition catalyst

Csaba Szabo, Jon G. Mabley, Suzanne M. Moeller, Roman Shimanovich, Pál Pacher, László Virág, Francisco G. Soriano, John H. Van Duzer, William Williams, Andrew L. Salzman, John T. Groves

Research output: Contribution to journalArticle

167 Citations (Scopus)

Abstract

Background: Peroxynitrite is a cytotoxic oxidant formed from nitric oxide (NO) and superoxide. Tyrosine nitration, a footprint of peroxynitrite, has been demonstrated in the pancreatic islets as well as in the cardiovascular system of diabetic subjects. Delineation of the pathogenetic role of peroxynitrite in disease conditions requires the use of potent, in vivo active peroxynitrite decomposition catalysts. The aim of the current work was to produce a potent peroxynitrite decomposition catalyst and to test its effects in rodent models of diabetes and its complications. Methods: FP15 was synthesized and analyzed using standard chemical methods. Diabetes was triggered by the administration of streptozotocin. Tyrosine nitration was measured immunohistochemically. Cardiovascular and vascular measurements were conducted according to standard physiologic methods. Results: FP15, a potent porphyrinic peroxynitrite decomposition catalyst, potently inhibited tyrosine nitration and peroxynitrite-induced cytotoxicity in vitro and in vivo. FP15 treatment (3-10 mg/kg/d) dose dependently and reduced the incidence and severity of diabetes mellitus in rats subjected to multiple low doses of streptozotocin, as well as in nonobese mice developing spontaneous autoimmune diabetes. Furthermore, treatment with FP15 protected against the development of vascular dysfunction (loss of endothelium-dependent relaxations) and the cardiac dysfunction (loss of myocardial contractility) in diabetic mice. FP15 treatment reduced tyrosine nitration in the diabetic pancreatic islets. Conclusions: The current results demonstrate the importance of endogenous peroxynitrite generation in the pathogenesis of autoimmune diabetes and diabetic cardiovascular complications. Peroxynitrite decomposition catalysts may be of therapeutic utility in diabetes and other pathophysiologic conditions.

Original languageEnglish (US)
Pages (from-to)571-580
Number of pages10
JournalMolecular Medicine
Volume8
Issue number10
StatePublished - Oct 1 2002
Externally publishedYes

Fingerprint

Diabetic Angiopathies
Peroxynitrous Acid
Tyrosine
Diabetes Complications
Streptozocin
Type 1 Diabetes Mellitus
Islets of Langerhans
Blood Vessels
Cardiovascular System
Oxidants
Superoxides
Endothelium
Rodentia
Diabetes Mellitus
Nitric Oxide

ASJC Scopus subject areas

  • Genetics

Cite this

Part I : Pathogenetic role of peroxynitrite in the development of diabetes and diabetic vascular complications: Studies with FP15, a novel potent peroxynitrite decomposition catalyst. / Szabo, Csaba; Mabley, Jon G.; Moeller, Suzanne M.; Shimanovich, Roman; Pacher, Pál; Virág, László; Soriano, Francisco G.; Van Duzer, John H.; Williams, William; Salzman, Andrew L.; Groves, John T.

In: Molecular Medicine, Vol. 8, No. 10, 01.10.2002, p. 571-580.

Research output: Contribution to journalArticle

Szabo, C, Mabley, JG, Moeller, SM, Shimanovich, R, Pacher, P, Virág, L, Soriano, FG, Van Duzer, JH, Williams, W, Salzman, AL & Groves, JT 2002, 'Part I: Pathogenetic role of peroxynitrite in the development of diabetes and diabetic vascular complications: Studies with FP15, a novel potent peroxynitrite decomposition catalyst', Molecular Medicine, vol. 8, no. 10, pp. 571-580.
Szabo, Csaba ; Mabley, Jon G. ; Moeller, Suzanne M. ; Shimanovich, Roman ; Pacher, Pál ; Virág, László ; Soriano, Francisco G. ; Van Duzer, John H. ; Williams, William ; Salzman, Andrew L. ; Groves, John T. / Part I : Pathogenetic role of peroxynitrite in the development of diabetes and diabetic vascular complications: Studies with FP15, a novel potent peroxynitrite decomposition catalyst. In: Molecular Medicine. 2002 ; Vol. 8, No. 10. pp. 571-580.
@article{5d8f8f30a6074809840eb40a6d7e0e3d,
title = "Part I: Pathogenetic role of peroxynitrite in the development of diabetes and diabetic vascular complications: Studies with FP15, a novel potent peroxynitrite decomposition catalyst",
abstract = "Background: Peroxynitrite is a cytotoxic oxidant formed from nitric oxide (NO) and superoxide. Tyrosine nitration, a footprint of peroxynitrite, has been demonstrated in the pancreatic islets as well as in the cardiovascular system of diabetic subjects. Delineation of the pathogenetic role of peroxynitrite in disease conditions requires the use of potent, in vivo active peroxynitrite decomposition catalysts. The aim of the current work was to produce a potent peroxynitrite decomposition catalyst and to test its effects in rodent models of diabetes and its complications. Methods: FP15 was synthesized and analyzed using standard chemical methods. Diabetes was triggered by the administration of streptozotocin. Tyrosine nitration was measured immunohistochemically. Cardiovascular and vascular measurements were conducted according to standard physiologic methods. Results: FP15, a potent porphyrinic peroxynitrite decomposition catalyst, potently inhibited tyrosine nitration and peroxynitrite-induced cytotoxicity in vitro and in vivo. FP15 treatment (3-10 mg/kg/d) dose dependently and reduced the incidence and severity of diabetes mellitus in rats subjected to multiple low doses of streptozotocin, as well as in nonobese mice developing spontaneous autoimmune diabetes. Furthermore, treatment with FP15 protected against the development of vascular dysfunction (loss of endothelium-dependent relaxations) and the cardiac dysfunction (loss of myocardial contractility) in diabetic mice. FP15 treatment reduced tyrosine nitration in the diabetic pancreatic islets. Conclusions: The current results demonstrate the importance of endogenous peroxynitrite generation in the pathogenesis of autoimmune diabetes and diabetic cardiovascular complications. Peroxynitrite decomposition catalysts may be of therapeutic utility in diabetes and other pathophysiologic conditions.",
author = "Csaba Szabo and Mabley, {Jon G.} and Moeller, {Suzanne M.} and Roman Shimanovich and P{\'a}l Pacher and L{\'a}szl{\'o} Vir{\'a}g and Soriano, {Francisco G.} and {Van Duzer}, {John H.} and William Williams and Salzman, {Andrew L.} and Groves, {John T.}",
year = "2002",
month = "10",
day = "1",
language = "English (US)",
volume = "8",
pages = "571--580",
journal = "Molecular Medicine",
issn = "1076-1551",
publisher = "Feinstein Institute for Medical Research",
number = "10",

}

TY - JOUR

T1 - Part I

T2 - Pathogenetic role of peroxynitrite in the development of diabetes and diabetic vascular complications: Studies with FP15, a novel potent peroxynitrite decomposition catalyst

AU - Szabo, Csaba

AU - Mabley, Jon G.

AU - Moeller, Suzanne M.

AU - Shimanovich, Roman

AU - Pacher, Pál

AU - Virág, László

AU - Soriano, Francisco G.

AU - Van Duzer, John H.

AU - Williams, William

AU - Salzman, Andrew L.

AU - Groves, John T.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - Background: Peroxynitrite is a cytotoxic oxidant formed from nitric oxide (NO) and superoxide. Tyrosine nitration, a footprint of peroxynitrite, has been demonstrated in the pancreatic islets as well as in the cardiovascular system of diabetic subjects. Delineation of the pathogenetic role of peroxynitrite in disease conditions requires the use of potent, in vivo active peroxynitrite decomposition catalysts. The aim of the current work was to produce a potent peroxynitrite decomposition catalyst and to test its effects in rodent models of diabetes and its complications. Methods: FP15 was synthesized and analyzed using standard chemical methods. Diabetes was triggered by the administration of streptozotocin. Tyrosine nitration was measured immunohistochemically. Cardiovascular and vascular measurements were conducted according to standard physiologic methods. Results: FP15, a potent porphyrinic peroxynitrite decomposition catalyst, potently inhibited tyrosine nitration and peroxynitrite-induced cytotoxicity in vitro and in vivo. FP15 treatment (3-10 mg/kg/d) dose dependently and reduced the incidence and severity of diabetes mellitus in rats subjected to multiple low doses of streptozotocin, as well as in nonobese mice developing spontaneous autoimmune diabetes. Furthermore, treatment with FP15 protected against the development of vascular dysfunction (loss of endothelium-dependent relaxations) and the cardiac dysfunction (loss of myocardial contractility) in diabetic mice. FP15 treatment reduced tyrosine nitration in the diabetic pancreatic islets. Conclusions: The current results demonstrate the importance of endogenous peroxynitrite generation in the pathogenesis of autoimmune diabetes and diabetic cardiovascular complications. Peroxynitrite decomposition catalysts may be of therapeutic utility in diabetes and other pathophysiologic conditions.

AB - Background: Peroxynitrite is a cytotoxic oxidant formed from nitric oxide (NO) and superoxide. Tyrosine nitration, a footprint of peroxynitrite, has been demonstrated in the pancreatic islets as well as in the cardiovascular system of diabetic subjects. Delineation of the pathogenetic role of peroxynitrite in disease conditions requires the use of potent, in vivo active peroxynitrite decomposition catalysts. The aim of the current work was to produce a potent peroxynitrite decomposition catalyst and to test its effects in rodent models of diabetes and its complications. Methods: FP15 was synthesized and analyzed using standard chemical methods. Diabetes was triggered by the administration of streptozotocin. Tyrosine nitration was measured immunohistochemically. Cardiovascular and vascular measurements were conducted according to standard physiologic methods. Results: FP15, a potent porphyrinic peroxynitrite decomposition catalyst, potently inhibited tyrosine nitration and peroxynitrite-induced cytotoxicity in vitro and in vivo. FP15 treatment (3-10 mg/kg/d) dose dependently and reduced the incidence and severity of diabetes mellitus in rats subjected to multiple low doses of streptozotocin, as well as in nonobese mice developing spontaneous autoimmune diabetes. Furthermore, treatment with FP15 protected against the development of vascular dysfunction (loss of endothelium-dependent relaxations) and the cardiac dysfunction (loss of myocardial contractility) in diabetic mice. FP15 treatment reduced tyrosine nitration in the diabetic pancreatic islets. Conclusions: The current results demonstrate the importance of endogenous peroxynitrite generation in the pathogenesis of autoimmune diabetes and diabetic cardiovascular complications. Peroxynitrite decomposition catalysts may be of therapeutic utility in diabetes and other pathophysiologic conditions.

UR - http://www.scopus.com/inward/record.url?scp=0036821898&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036821898&partnerID=8YFLogxK

M3 - Article

VL - 8

SP - 571

EP - 580

JO - Molecular Medicine

JF - Molecular Medicine

SN - 1076-1551

IS - 10

ER -