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Rheinlaender C, Helfenstein D, Pees C, Walch E, Czernik C, Obladen M, Koehne P. Neurodevelopmental outcome after COX inhibitor treatment for patent ductus arteriosus. Early Hum Dev 2010; 86:87-92. [PMID: 20153127 DOI: 10.1016/j.earlhumdev.2009.12.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2009] [Revised: 12/11/2009] [Accepted: 12/30/2009] [Indexed: 11/17/2022]
Abstract
AIM To compare neurodevelopmental results in very low birth weight (VLBW) infants two years after successful or failed cyclooxygenase inhibitor treatment with either indomethacin or ibuprofen for a haemodynamically significant patent ductus arteriosus (hsPDA). METHODS We retrospectively evaluated closure rates and outcome parameters of VLBW infants with hsPDA 89 of whom were treated with indomethacin and 93 with ibuprofen. RESULTS Indomethacin and ibuprofen therapy groups did not differ in their baseline clinical profile (median gestational age 26.0 and 26.2wksd) in early (median CRIB 6 and 5, respiratory distress >2 degrees in 36 and 34 infants) and late morbidities (intraventricular hemorrhage >2 degrees in 9 and 10 infants, bronchopulmonary dysplasia in 31 and 27 infants, 80 and 85 survivors), PDA closure rates (63 and 58%) or neurodevelopmental outcome. The therapy failure group (54 infants) was characterized by lower median gestational age (25.0wksd) and higher mortality (17%). No differences were found in the neurodevelopmental outcome of the surviving infants with ligation as compared to the survivors with successful pharmacological closure of the PDA at 24months corrected age. CONCLUSION Use of either ibuprofen or indomethacin for closure of a hsPDA did not influence two year neurodevelopmental outcomes in VLBW infants.
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Affiliation(s)
- C Rheinlaender
- Department of Neonatology, Charité, Universitätsmedizin Berlin, Campus Virchow-Klinikum, Germany
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Löber R, Koehne P, Czernik C, Bührer C, Blume-Peytavi U. Papulopustulöse Effloreszenzen mit Bluteosinophilie im Neugeborenenalter: Manifestation einer Incontinentia pigmenti. Z Geburtshilfe Neonatol 2009. [DOI: 10.1055/s-0029-1223057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Rheinlaender C, Helfenstein D, Walch E, Berns M, Obladen M, Koehne P. Total serum bilirubin levels during cyclooxygenase inhibitor treatment for patent ductus arteriosus in preterm infants. Acta Paediatr 2009; 98:36-42. [PMID: 18764861 DOI: 10.1111/j.1651-2227.2008.01007.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM To determine whether ibuprofen use in VLBW infants is associated with increased serum bilirubin levels and impaired neurodevelopmental outcome at 2 years of age compared to indomethacin. METHODS We retrospectively evaluated bilirubin data and outcome parameters of 178 VLBW infants treated with COX inhibitors for a haemodynamically relevant patent ductus arteriosus (PDA) between 1998 and 2003 in a single institution. In our department ibuprofen replaced indomethacin for PDA treatment in 2001, while clinical and echocardiographic criteria for the indication of PDA invention have remained unchanged. RESULTS Ibuprofen and indomethacin therapy groups did not differ in their baseline clinical profile. Peak serum bilirubin concentration was 10.2 mg/dL in the ibuprofen group and 8.6 mg/dL in the indomethacin group (p < 0.01), while phototherapy duration did not differ. At 2 years of age neurodevelopmental outcome was similar in both groups. In a single case analysis, four cases of adverse neurodevelopmental outcome despite inconspicuous clinical course were identified in the ibuprofen group. CONCLUSION In VLBW infants with PDA, ibuprofen treatment was associated with higher bilirubin levels than indomethacin.
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Affiliation(s)
- C Rheinlaender
- Department of Neonatology, Charité, Campus Virchow Hospital, University Medicine Berlin, Augustenberger Platz 1, Berlin, Germany
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Czernik C, Lemmer J, Metze B, Koehne P, Mueller C, Obladen M. BNP als Prediktor einer Duktusintervention bei Frühgeborenen <28 SSW. Z Geburtshilfe Neonatol 2008. [DOI: 10.1055/s-2008-1078803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Weber SC, Gratopp A, Rheinländer C, Akanbi S, Barikbin P, Koehne P. Isolierung und Kultur von organotypischen Endothel- und Glattmuskelzellen aus dem embryonalen Ductus arteriosus der Ratte. Z Geburtshilfe Neonatol 2008. [DOI: 10.1055/s-2008-1078953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Akanbi S, Gratopp A, Weber SC, Peiser C, Obladen M, Koehne P. Einfluss von COX-Inhibitoren auf die Expression von VEGF und dessen Rezeptoren an embryonalen Zellkulturen des Ductus arteriosus der Ratte. Z Geburtshilfe Neonatol 2008. [DOI: 10.1055/s-2008-1078807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Barikbin P, Weber SC, Akanbi S, Rheinländer C, Koehne P. Differentielle Genexpression in Ductus arteriosus und Pulmonalarterie. Z Geburtshilfe Neonatol 2008. [DOI: 10.1055/s-2008-1078952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Weber SC, Rheinländer C, Strauss E, Peiser C, Sarioglu N, Obladen M, Koehne P. Die Expression von VEGF und seinen Rezeptoren am humanen Ductus arteriosus Botalli. Z Geburtshilfe Neonatol 2007. [DOI: 10.1055/s-2007-983267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Rheinländer C, Helfenstein D, Walch E, Berns M, Obladen M, Koehne P. Kumulative Bilirubinexposition unter COX-Inhibitortherapie von Frühgeborenen unter 1500g mit persistierendem Ductus arteriosus. Z Geburtshilfe Neonatol 2007. [DOI: 10.1055/s-2007-983308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Pees C, Obladen M, Koehne P. Echokardiographische Parameter können den Erfolg einer Ibuprofen Therapie bei offenem Ductus arteriosus von Frühgeborenen unter 28 Wochen vorhersagen. Z Geburtshilfe Neonatol 2006. [DOI: 10.1055/s-2006-946062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Hoehn T, Gratopp A, Raehse K, Koehne P. Effekte von Hyperoxie und NO auf die endogene Produktion von NO in polymorphonukleären Leukozyten. Z Geburtshilfe Neonatol 2006. [DOI: 10.1055/s-2006-946165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Koehne P, Helfenstein D, Pees C, Walch E, Obladen M. Entwicklungsneurologisches Outcome nach Ductusintervention mit Cyclooxygenasehemmern bei sehr kleinen Frühgeborenen. Z Geburtshilfe Neonatol 2006. [DOI: 10.1055/s-2006-946219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Pees C, Obladen M, Koehne P. Echokardiographische Parameter können den Erfolg einer Ibuprofen Therapie bei offenem Ductus arteriosus von Frühgeborenen unter 28 Wochen vorhersagen. Z Geburtshilfe Neonatol 2006. [DOI: 10.1055/s-2006-943147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Koehne P, Helfenstein D, Pees C, Walch E, Obladen M. Entwicklungsneurologisches Outcome nach Ductusintervention mit Cyclooxygenasehemmern bei sehr kleinen Frühgeborenen. Z Geburtshilfe Neonatol 2006. [DOI: 10.1055/s-2006-943304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Hoehn T, Gratopp A, Raehse K, Koehne P. Effekte von Hyperoxie und NO auf die endogene Produktion von NO in polymorphonukleären Leukozyten. Z Geburtshilfe Neonatol 2006. [DOI: 10.1055/s-2006-943250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Koehne P, Hüseman D, Walch E, Schülke M, Varon R, Aust G, Obladen M. Genetisch bedingte Taubheit bei einem Frühgeborenen mit schwerem postnatalem Verlauf. Z Geburtshilfe Neonatol 2005. [DOI: 10.1055/s-2005-871494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Schmitz L, Stiller B, Koehne P, Koch H, Lange PE. [Doppler echocardiographic investigation of left ventricular diastolic function in preterm infants with and without a patent ductus arteriosus]. Klin Padiatr 2004; 216:36-40. [PMID: 14747970 DOI: 10.1055/s-2004-817684] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
We studied the influence of preload augmentation on Doppler-derived left ventricular diastolic function parameters in infants with a birth weight <1500 g. In 44 neonates with a closed duct and 29 neonates with an open ductus arteriosus a complete echocardiographic study including Doppler investigations of the mitral inflow signals and analysis of diastolic time intervals was performed. Neonates with an open duct had a lower median gestational age (27.1 vs. 29, P<0.01), a higher cardiac index (425 vs. 260 ml/min/kg, P<0.001), and a different M-mode left atrial to aortic diameter ratio (1.36 vs. 0.79, P<0.001), but birth weight, age at examination (6.6 vs. 7.9 days), and heart rate were similar compared to the neonates with a closed duct. Main differences in diastolic indexes existed in early and atrial filling integrals and peak velocities, early filling acceleration time, and isovolumic relaxation time. Most informative in neonates with an open ductus peak early filling velocity (41.2 vs. 30.4 cm, P<0.01) and peak atrial filling velocity (49.2 vs. 35.9, P<0.001) are higher, and isovolumic relaxation time is shorter (45 vs. 53 ms, P<0.001) than in closed duct peers. Isovolumic relaxation time is inversely correlated with the cardiac index (R = -0.78). These parameter changes can be interpreted as incipient left ventricular diastolic failure in extremely low birth weight infants in the presence of a preload challenge. The coincidence of higher peak velocities with a shortened isovolumic relaxation time is very likely a result of left atrial pressure elevation. Preload mismatch has to be considered in preterm infants with a persistent ductus arteriosus. The results of this study can be helpful to find the indication for PDA-closure and to adjust volume replacement therapy, and catecholamine medication to a level appropriate for the individual cardiac performance.
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MESH Headings
- Blood Flow Velocity/physiology
- Blood Pressure/physiology
- Blood Volume/physiology
- Diastole/physiology
- Ductus Arteriosus, Patent/diagnostic imaging
- Ductus Arteriosus, Patent/physiopathology
- Echocardiography, Doppler
- Echocardiography, Doppler, Color
- Female
- Follow-Up Studies
- Heart Failure/diagnostic imaging
- Heart Failure/physiopathology
- Heart Ventricles/diagnostic imaging
- Heart Ventricles/physiopathology
- Humans
- Image Processing, Computer-Assisted
- Infant
- Infant, Low Birth Weight
- Infant, Newborn
- Infant, Premature, Diseases/diagnostic imaging
- Infant, Premature, Diseases/physiopathology
- Male
- Myocardial Contraction/physiology
- Prospective Studies
- Ventricular Dysfunction, Left/diagnostic imaging
- Ventricular Dysfunction, Left/physiopathology
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Affiliation(s)
- L Schmitz
- Klinik für Pädiatrische Kardiologie, Charité Campus Virchow Klinikum, Humboldt-Universität zu Berlin.
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Felderhoff-Mueser U, Herold R, Hochhaus F, Koehne P, Ring-Mrozik E, Obladen M, Bührer C. Increased cerebrospinal fluid concentrations of soluble Fas (CD95/Apo-1) in hydrocephalus. Arch Dis Child 2001; 84:369-72. [PMID: 11259245 PMCID: PMC1718719 DOI: 10.1136/adc.84.4.369] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND AND AIMS The ventricular enlargement observed in children with chronically raised intracranial pressure (ICP) causes a secondary loss of brain tissue. In animal studies of hydrocephalus, programmed cell death (apoptosis) has been found as a major mechanism of neuronal injury. One of the regulators of the apoptotic cell death programme is the receptor mediated Fas/Fas ligand interaction. METHODS The apoptosis regulating cytokines soluble Fas (sFas) and soluble Fas ligand (sFasL) were studied in the cerebrospinal fluid (CSF) of 31 hydrocephalic children undergoing shunt surgery for symptomatic hydrocephalus and 18 controls. RESULTS High concentrations of sFas were observed in children with hydrocephalus (median 252 ng/ml); in controls sFas was below the detection limit (0.5 ng/ml). sFasL was undetectable in all but one sample. CONCLUSION High concentrations of sFas in the CSF of children with hydrocephalus suggest intrinsic sFas production, potentially antagonising pressure mediated Fas activation.
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Affiliation(s)
- U Felderhoff-Mueser
- Department of Neonatology, Charité Children's Hospital, Virchow Klinikum, Humboldt University, Augustenburger Platz 1, 13353 Berlin, Germany.
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Willam C, Koehne P, Jürgensen JS, Gräfe M, Wagner KD, Bachmann S, Frei U, Eckardt KU. Tie2 receptor expression is stimulated by hypoxia and proinflammatory cytokines in human endothelial cells. Circ Res 2000; 87:370-7. [PMID: 10969034 DOI: 10.1161/01.res.87.5.370] [Citation(s) in RCA: 92] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The tyrosine kinase receptor Tie2 (also known as Tek) plays an important role in the development of the embryonic vasculature and persists in adult endothelial cells (ECs). Tie2 was shown to be upregulated in tumors and skin wounds, and its ligands angiopoietin-1 and -2, although they are not directly mitogenic, modulate neovascularization. To gain further insight into the regulation of Tie2, we have studied the effect of hypoxia and inflammatory cytokines, two conditions frequently associated with neoangiogenic processes, on Tie2 expression in human ECs. Exposure to 1% O(2) led to a time-dependent significant rise of Tie2 protein levels in human coronary microvascular endothelial cells (HCMECs) and dermal microvascular ECs (HMEC-1) (3.2- and 2.5-fold within 24 hours), which was reversible after reoxygenation, and induced a less marked increase in human umbilical vein ECs (HUVECs; 1.7-fold). Hypoxia-conditioned medium and D-deoxyglucose did not change Tie2 expression, but desferrioxamine and cobalt, which are known to mimic hypoxia-sensing mechanisms, induced Tie2 at ambient oxygen tensions. Tumor necrosis factor-alpha induced Tie2 in a time- and dose-dependent fashion in all 3 EC types (HUVEC, 2.3-fold; HMEC-1, 2. 8-fold; and HCMEC, 3.0-fold; 10 ng/mL, 24 hours). Enhanced expression was also found after exposure to interleukin-1beta (1 ng/mL). Changes in Tie2 protein levels were paralleled by changes in mRNA expression. In accordance with these in vitro findings, immunohistochemistry revealed focal upregulation of Tie2 in capillaries at the border of infarcted human and rat myocardium. In conclusion, the data show that hypoxia and inflammatory cytokines upregulate Tie2, which may contribute to the angiogenic response in ischemic tissues.
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Affiliation(s)
- C Willam
- Department of Nephrology and Medical Intensive Care, Charité, Humboldt University Berlin, Germany
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Abstract
Low oxygen (O(2)) is the key stimulus for expression of vascular endothelial growth factor (VEGF) in several adherent cells. Whether hypoxia also directs the release of VEGF protein from neutrophils (polymorphonuclear neutrophils; PMN) and platelets has not been investigated. We therefore compared VEGF release of platelets, PMN, and human vascular smooth muscle cells (HSMC) in response to hypoxia with that to activators of cellular degranulation. In contrast to HSMC, VEGF release from PMN and platelets or VEGF mRNA expression in PMN was not stimulated under hypoxic conditions (1% O(2)). Hypo- or hyperthermia and acidosis, other conditions potentially associated with ischemic and inflammatory tissue injury, also did not stimulate VEGF secretion from PMN. However, stimulation of platelets with thrombin and of PMN with phorbol 12-myristate 13-acetate induced a time-dependent release of VEGF, peaking after 30 and 60 min, respectively. This was blocked by the degranulation inhibitor pentoxifylline but not by the protein-synthesis inhibitor cycloheximide. We conclude that rapid release of VEGF from platelets and PMN may occur independently of oxygenation during inflammation and hemostasis.
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Affiliation(s)
- P Koehne
- Department of Neonatology, Charité, Campus Virchow-Klinikum, Humboldt University, D-13353 Berlin, Germany.
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Koehne P, Schäper C, Graf K, Kunkel G. Neutral endopeptidase 24.11: its physiologic and possibly pathophysiologic role in inflammation with special effect on respiratory inflammation. Allergy 1998; 53:1023-42. [PMID: 9860235 DOI: 10.1111/j.1398-9995.1998.tb03812.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- P Koehne
- Department of Clinical Immunology and Asthma Clinic, Charité-Virchow-Hospital, Humboldt University, Berlin, Germany
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Graf K, Koehne P, Gräfe M, Zhang M, Auch-Schwelk W, Fleck E. Regulation and differential expression of neutral endopeptidase 24.11 in human endothelial cells. Hypertension 1995; 26:230-5. [PMID: 7635530 DOI: 10.1161/01.hyp.26.2.230] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Neutral endopeptidase 24.11, a membrane-bound metallopeptidase, cleaves, and degrades vasoactive peptides such as atrial natriuretic peptide, endothelin, angiotensin I, substance P, and bradykinin. Therefore, the presence of this metallopeptidase may contribute to the regulation of vascular tone and local inflammatory responses in the vascular endothelium and elsewhere. We determined neutral endopeptidase in cultured human endothelial cells from different vascular beds and studied its regulation by protein kinase C. Neutral endopeptidase was detected in all cultured endothelial cell types. Lowest concentrations were measured in human endothelial cells from umbilical veins (360 +/- 14 pg/mg protein), followed by pulmonary and coronary arteries; higher concentrations were found in endothelial cells from the cardiac microcirculation (1099 +/- 73 pg/mg protein). Neutral endopeptidase content increased during cell growth but was not affected by endothelial cell growth factor or modifications of the growth medium. Stimulation of protein kinase C with 1-oleoyl-2-acetyl-rac-glycerol (0.1 to 1 mumol/L) and phorbol 12-myristate 13-acetate (0.01 to 0.1 mumol/L) induced a time- and concentration-dependent increase of endothelial cells that was inhibited by cycloheximide (5 mumol/L), an inhibitor of protein synthesis. Incubation with phospholipase C (1 mumol/L) and thrombin (10 IU/mL) induced upregulation of neutral endopeptidase, resulting in 158 +/- 26% and 150 +/- 22% increases, respectively, compared with controls. The thrombin effect was inhibited by calphostin C (1 mumol/L), an inhibitor of protein kinase C. Endothelial neutral endopeptidase is constitutively expressed in endothelial cells from different origins and is inducible by thrombin via activation of the protein kinase C pathway.
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Affiliation(s)
- K Graf
- Department of Internal Medicine/Cardiology and Angiology, Free University, Germany
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