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Derkach KV, Zakharova IO, Bakhtyukov AA, Sorokoumov VN, Kuznetsova VS, Shpakov AO. [Characterization and biological activity of new 4-oxo-1,4-dihydrocinnoline-based inhibitors of the tyrosine phosphatase PTP1B and TCPTP]. BIOMEDITSINSKAIA KHIMIIA 2022; 68:427-436. [PMID: 36573409 DOI: 10.18097/pbmc20226806427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Functional disorders in obesity are largely due to a decrease in tissue sensitivity to insulin and leptin. One of the ways to restore it is inhibition of protein phosphotyrosine phosphatase 1B (PTP1B) and T-cell protein phosphotyrosine phosphatase (TCPTP), negative regulators of the insulin and leptin signaling. Despite progress in the development of inhibitors of these phosphatases, commercial preparations based on them have not been developed yet, and the mechanisms of action are poorly understood. The aim of the work was to study the effect of new derivatives of 4-oxo-1,4-dihydrocinnoline (PI04, PI06, PI07) on the activity of PTP1B and TCPTP, as well as to study the effect of their five-day administration (i.p., 10 mg/kg/day) to Wistar rats with diet-induced obesity on body weight and fat, metabolic and hormonal parameters, and gene expression of phosphatase and insulin and leptin receptors in the liver. It has been shown that PI04 is a mild, low selective inhibitor of both phosphatases (PTP1B, IC50=3.42(2.60-4.51) μM; TCPTP, IC50=4.16(3.49-4.95) μM), while PI06 and PI07 preferentially inhibit PTP1B (IC50=3.55 (2.63-4.78) μM) and TCPTP (IC50=1.45(1.18-1.78) μM), respectively. PI04 significantly reduced food intake, body weight and fat, attenuated hyperglycemia, normalized glucose tolerance, basal and glucose-stimulated levels of insulin and leptin, and insulin resistance index. Despite the anorexigenic effect, PI06 and PI07 were less effective, having little effect on glucose homeostasis and insulin sensitivity. PI04 significantly increased the expression of the PTP1B and TCPTP genes and decreased the expression of the insulin and leptin receptor genes. PI06 and PI07 had little effect on these indicators. Thus, PI04, the inhibitor of PTP1B and TCPTP phosphatases, restored metabolic and hormonal parameters in obese rats with greater efficiency than inhibitors of PTP1B (PI06) and TCPTP (PI07). This indicates the prospect of creating mixed PTP1B/TCPTP inhibitors for correction of metabolic disorders.
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Affiliation(s)
- K V Derkach
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | - I O Zakharova
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | - A A Bakhtyukov
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | - V N Sorokoumov
- Institute of Chemistry, St. Petersburg State University, St. Petersburg, Russia
| | - V S Kuznetsova
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | - A O Shpakov
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia; Medical Faculty, St. Petersburg State University, St. Petersburg, Russia
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Youcef G, Olivier A, L'Huillier CPJ, Labat C, Fay R, Tabcheh L, Toupance S, Rodriguez-Guéant RM, Bergerot D, Jaisser F, Lacolley P, Zannad F, Laurent Vallar, Pizard A. Simultaneous characterization of metabolic, cardiac, vascular and renal phenotypes of lean and obese SHHF rats. PLoS One 2014; 9:e96452. [PMID: 24831821 PMCID: PMC4022510 DOI: 10.1371/journal.pone.0096452] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Accepted: 04/07/2014] [Indexed: 12/18/2022] Open
Abstract
Individuals with metabolic syndrome (MetS) are prone to develop heart failure (HF). However, the deleterious effects of MetS on the continuum of events leading to cardiac remodeling and subsequently to HF are not fully understood. This study characterized simultaneously MetS and cardiac, vascular and renal phenotypes in aging Spontaneously Hypertensive Heart Failure lean (SHHF(+/?) regrouping (+/+) and (+/cp) rats) and obese (SHHF(cp/cp), "cp" defective mutant allele of the leptin receptor gene) rats. We aimed to refine the milestones and their onset during the progression from MetS to HF in this experimental model. We found that SHHF(cp/cp )but not SHHF(+/?) rats developed dyslipidemia, as early as 1.5 months of age. This early alteration in the lipidic profile was detectable concomitantly to impaired renal function (polyuria, proteinuria but no glycosuria) and reduced carotid distensibility as compared to SHHF(+/?) rats. By 3 months of age SHHFcp/cp animals developed severe obesity associated with dislipidemia and hypertension defining the onset of MetS. From 6 months of age, SHHF(+/?) rats developed concentric left ventricular hypertrophy (LVH) while SHHF(cp/cp) rats developed eccentric LVH apparent from progressive dilation of the LV dimensions. By 14 months of age only SHHF(cp/cp) rats showed significantly higher central systolic blood pressure and a reduced ejection fraction resulting in systolic dysfunction as compared to SHHF(+/?). In summary, the metabolic and hemodynamic mechanisms participating in the faster decline of cardiac functions in SHHF(cp/cp) rats are established long before their physiological consequences are detectable. Our results suggest that the molecular mechanisms triggered within the first three months after birth of SHHF(cp/cp) rats should be targeted preferentially by therapeutic interventions in order to mitigate the later HF development.
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Affiliation(s)
- Gina Youcef
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; Genomics Research Unit, Centre de Recherche Public de la Santé, Strassen, Luxembourg
| | - Arnaud Olivier
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; CHU Nancy, Nancy, France; CIC 1433, Pierre Drouin, Vandoeuvre-lès-Nancy, France
| | - Clément P J L'Huillier
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France
| | - Carlos Labat
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France
| | - Renaud Fay
- CHU Nancy, Nancy, France; CIC 1433, Pierre Drouin, Vandoeuvre-lès-Nancy, France
| | - Lina Tabcheh
- Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; UMR 7365 CNRS, Vandoeuvre-lès-Nancy, France
| | - Simon Toupance
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; CHU Nancy, Nancy, France; CIC 1433, Pierre Drouin, Vandoeuvre-lès-Nancy, France
| | - Rosa-Maria Rodriguez-Guéant
- Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; CHU Nancy, Nancy, France; U954 Inserm, Vandoeuvre-lès-Nancy, France
| | | | - Frédéric Jaisser
- CHU Nancy, Nancy, France; CIC 1433, Pierre Drouin, Vandoeuvre-lès-Nancy, France
| | - Patrick Lacolley
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; CHU Nancy, Nancy, France
| | - Faiez Zannad
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; CHU Nancy, Nancy, France; CIC 1433, Pierre Drouin, Vandoeuvre-lès-Nancy, France
| | - Laurent Vallar
- Genomics Research Unit, Centre de Recherche Public de la Santé, Strassen, Luxembourg
| | - Anne Pizard
- UMRS U1116 Inserm, Vandoeuvre-lès-Nancy, France; Fédération de Recherche 3209, Nancy, France; Université de Lorraine, Nancy, France; CIC 1433, Pierre Drouin, Vandoeuvre-lès-Nancy, France
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Dominguez JH, Tang N, Xu W, Evan AP, Siakotos AN, Agarwal R, Walsh J, Deeg M, Pratt JH, March KL, Monnier VM, Weiss MF, Baynes JW, Peterson R. Studies of renal injury III: lipid-induced nephropathy in type II diabetes. Kidney Int 2000; 57:92-104. [PMID: 10620191 DOI: 10.1046/j.1523-1755.2000.00814.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
UNLABELLED Studies of renal injury III: Lipid-induced nephropathy in type II diabetes. BACKGROUND Nephrotoxicity from elevated circulating lipids occurs in experimental and clinical situations. We tested the hypothesis that lipid-induced nephropathy causes advanced renal failure in rats with type II diabetes and dyslipidemia. METHODS First generation (F1) hybrid rats derived from the spontaneous hypertensive heart failure rat (SHHF/Gmi-fa) and the LA/NIH-corpulent rat (LA/N-fa) were studied for 41 weeks while being on specific diets. Group 1 (14 rats) ingested 11.5% protein, 47.9% fat, and 40.6% carbohydrate. Group 2 (8 rats) ingested 26.9% protein, 16.7% animal fat, and 56.4% carbohydrate, and group 3 (20 rats) ingested 20.2% protein, 40.4% soy and coconut oil, and 39.4% carbohydrate. RESULTS Hyperglycemia was more severe in rat groups 1 and 2 than in group 3. In contrast, circulating cholesterol and hydroperoxide levels were highest in group 3, intermediate in group 2, and lowest in group 1. Group 3 had severe renal failure secondary to glomerulosclerosis and tubulointerstitial disease, with striking deposition of the lipid peroxidation stress biomarker 4-hydroxynonenal in glomeruli and renal microvessels. Moreover, in group 3, increased arterial wall thickness also connoted vascular injury. In contrast, the glycoxidation stress biomarkers pentosidine and carboxymethyl-lysine were preferentially localized to renal tubules of hyperglycemic rats in groups 1 and 2 and did not segregate with the most severe renal injury. Glomerular and interstitial fibrosis was accompanied by proportional increases in renal transforming growth factor-beta1 levels, which were threefold higher in the hypercholesterolemic rats of group 3 than in the hyperglycemic rats of group 1. CONCLUSIONS Acquisition of non-nodular glomerular sclerosis and tubulointerstitial disease is dependent on lipoxidation stress in rats with type II diabetes. On the other hand, in the absence of hypercholesterolemia, prolonged glycoxidation stress does not appear to be uniquely nephrotoxic.
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Affiliation(s)
- J H Dominguez
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA.
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Gletsu NA, Field CJ, Clandinin MT. Obese mice have higher insulin receptor levels in the hepatocyte cell nucleus following insulin stimulation in vivo with an oral glucose meal. BIOCHIMICA ET BIOPHYSICA ACTA 1999; 1454:251-60. [PMID: 10452959 DOI: 10.1016/s0925-4439(99)00043-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Internalization of the insulin receptor occurs following insulin binding at the cell surface, which serves to attenuate the insulin signal as well as modulate the number of surface insulin receptors. Obese animals exhibit decreased cell surface insulin receptor number as well as defects in insulin receptor internalization and processing. The insulin receptor may also translocates to the nucleus of hepatocytes and adipocytes following stimulation of cells with insulin. The objective of this study was to determine if insulin receptor trafficking to the hepatocyte cell nucleus could be observed in vivo and whether this process was altered in obese compared to lean mice. Mice were fasted for 12 h to reduce serum insulin to basal levels. Animals were then given an oral meal of glucose to stimulate the binding of insulin to receptor in vivo. Hepatocyte plasma membrane and nuclei were fractionated to purity following the glucose meal. Levels of insulin receptor were determined using insulin binding assays and a Western blotting assay using anti-insulin receptor antibody. As the amount of serum insulin increased following the glucose meal, a corresponding increase in nuclear insulin binding occurred in lean animals but not obese animals (P<0.05). Following the glucose meal, insulin receptor detected in the cell nucleus was increased in obese compared to lean mice (P<0.05). Thus insulin receptor translocation to the nucleus was demonstrated in vivo following a glucose meal in hepatocytes of both lean and obese animals. It is suggested that serum hyperglycemia and hyperinsulinemia in obese mice increased translocation of the insulin receptor to the nucleus.
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Affiliation(s)
- N A Gletsu
- Department of Agricultural, Food and Nutritional Science, Nutrition and Metabolism Research Group, University of Alberta, 4-10 Agriculture/Forestry Building, Edmonton, Alta T6G 2P5, Canada
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