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排序方式: 共有33条查询结果,搜索用时 31 毫秒
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Carolin Lepa Sascha Hoppe Antje Stber Boris V. Skryabin Laura Katharina Sievers Barbara Heitplatz Giuliano Ciarimboli Ute Neugebauer Maja T. Lindenmeyer Clemens D. Cohen Hannes C.A. Drexler Peter Boor Thomas Weide Hermann Pavenstdt Britta George 《Journal of the American Society of Nephrology : JASN》2021,32(2):357
BackgroundInjury to kidney podocytes often results in chronic glomerular disease and consecutive nephron malfunction. For most glomerular diseases, targeted therapies are lacking. Thus, it is important to identify novel signaling pathways contributing to glomerular disease. Neurotrophic tyrosine kinase receptor 3 (TrkC) is expressed in podocytes and the protein transmits signals to the podocyte actin cytoskeleton.MethodsNephron-specific TrkC knockout (TrkC-KO) and nephron-specific TrkC-overexpressing (TrkC-OE) mice were generated to dissect the role of TrkC in nephron development and maintenance.ResultsBoth TrkC-KO and TrkC-OE mice exhibited enlarged glomeruli, mesangial proliferation, basement membrane thickening, albuminuria, podocyte loss, and aspects of FSGS during aging. Igf1 receptor (Igf1R)–associated gene expression was dysregulated in TrkC-KO mouse glomeruli. Phosphoproteins associated with insulin, erb-b2 receptor tyrosine kinase (Erbb), and Toll-like receptor signaling were enriched in lysates of podocytes treated with the TrkC ligand neurotrophin-3 (Nt-3). Activation of TrkC by Nt-3 resulted in phosphorylation of the Igf1R on activating tyrosine residues in podocytes. Igf1R phosphorylation was increased in TrkC-OE mouse kidneys while it was decreased in TrkC-KO kidneys. Furthermore, TrkC expression was elevated in glomerular tissue of patients with diabetic kidney disease compared with control glomerular tissue.ConclusionsOur results show that TrkC is essential for maintaining glomerular integrity. Furthermore, TrkC modulates Igf-related signaling in podocytes. 相似文献
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Pressure-independent cardiac hypertrophy in mice with cardiomyocyte-restricted inactivation of the atrial natriuretic peptide receptor guanylyl cyclase-A 下载免费PDF全文
Holtwick R van Eickels M Skryabin BV Baba HA Bubikat A Begrow F Schneider MD Garbers DL Kuhn M 《The Journal of clinical investigation》2003,111(9):1399-1407
Cardiac hypertrophy is a common and often lethal complication of arterial hypertension. Atrial natriuretic peptide (ANP) has been postulated to exert local antihypertrophic effects in the heart. Thus, a loss of function of the ANP receptor guanylyl cyclase-A (GC-A) might contribute to the increased propensity to cardiac hypertrophy, although a causative role in vivo has not been definitively demonstrated. To test whether local ANP modulates cardiomyocyte growth, we inactivated the GC-A gene selectively in cardiomyocytes by homologous loxP/Cre-mediated recombination. Thereby we have circumvented the systemic, hypertensive phenotype associated with germline inactivation of GC-A. Mice with cardiomyocyte-restricted GC-A deletion exhibited mild cardiac hypertrophy, markedly increased mRNA expression of cardiac hypertrophy markers such as ANP (fivefold), alpha-skeletal actin (1.7-fold), and beta-myosin heavy chain (twofold), and increased systemic circulating ANP levels. Their blood pressure was 7-10 mmHg below normal, probably because of the elevated systemic levels and endocrine actions of ANP. Furthermore, cardiac hypertrophic responses to aortic constriction were enhanced and accompanied by marked deterioration of cardiac function. This phenotype is consistent with a local function of the ANP/GC-A system to moderate the molecular program of cardiac hypertrophy. 相似文献
3.
Sazhenova Elena A. Nikitina Tatyana V. Vasilyev Stanislav A. Tolmacheva Ekaterina N. Vasilyeva Oksana Yu Markov Anton V. Yuryev Sergey Yu Skryabin Nikolay A. Zarubin Alexey A. Kolesnikov Nikita A. Stepanov Vadim A. Lebedev Igor N. 《Journal of assisted reproduction and genetics》2021,38(11):2893-2908
Journal of Assisted Reproduction and Genetics - Comparative analysis of multilocus imprinting disturbances (MLIDs) in miscarriages from women with sporadic (SPL) and recurrent pregnancy loss (RPL)... 相似文献
4.
Eugen Retser Tanja Schied Boris V. Skryabin Thomas Vogl Janos M. Kanczler Nina Hamann Anja Niehoff Sven Hermann Michel Eisenbltter Lydia Wachsmuth Thomas Pap Peter L. E. M. van Lent Karin Loser Johannes Roth Frank Zaucke Stephan Ludwig Viktor Wixler 《Arthritis \u0026amp; Rheumatology》2013,65(9):2290-2300
5.
Mechtcheriakova IA Eldarov MA Nicholson L Shanks M Skryabin KG Lomonossoff GP 《Journal of virological methods》2006,131(1):10-15
The expression and assembly of the hepatitis B virus (HBV) nucleocapsid protein (HBcAg) were investigated in plants using viral vectors. Constructs based on either Potato virus X (PVX) or Cowpea mosaic virus (CPMV) containing the sequence of HBcAg were able to infect the appropriate host plants and remained genetically stable during infection. Analysis of HBcAg expression revealed that the protein can self-assemble into core-like particles and that the assembled material could be partially purified by differential centrifugation. Thus, the use of viral vectors can be considered a practical method for rapid production of assembled HBcAg particles in plants. This approach provides a means whereby a variety of chimaeric particles can be assessed quickly and cheaply for various diagnostic and vaccine applications. 相似文献
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The amino acid sequences of the large proteins of potexviruses and tymoviruses were aligned. It was shown that three domains of these proteins display significant similarity between the two virus groups. In contrast to central (putative NTPase-helicase) and C-terminal (putative polymerase) domains, the conservative N-terminal domain of the potexvirus/tymovirus large protein displayed no obvious similarity to the respective regions of the large proteins of other Sindbis-like viruses.Requests for reprints should be addressed to M.N. Rozanov, V.A. Engelhardt Institute of Molecular Biology, Academy of Sciences of the USSR, Moscow 117984, USSR. 相似文献
10.
M Y Jung B V Skryabin M Arai S Abbondanzo D Fu J Brosius N K Robakis H G Polites J E Pintar C Schmauss 《Neuroscience》1999,91(3):911-924
Within the D2-class of dopamine receptors, the D2 and D3 subtypes share the highest degree of similarity in their primary structure. However, the extent to which these two receptor subtypes have similar or different functional properties is unclear. The present study used gene targeting to generate mice deficient for D2, D3, and D2/D3 receptors. A comparative analysis of D2 and D3 single mutants and D2/D3 double mutants revealed that D2/D3 double mutants develop motor phenotypes that, although qualitatively similar to those seen in D2 single mutants, are significantly more severe. Furthermore, increased levels of the dopamine metabolites dihydroxyphenyl acetic acid and homovanillic acid are found in the dorsal striatum of D2 single mutants. The levels of these metabolites, however, are significantly higher in mice lacking D2 and D3 receptors. In addition, results of immunoprecipitation experiments revealed that D2 single mutants express higher levels of D3 receptor proteins during later stages of their postnatal development. These results suggest that D3 receptors compensate for some of the lacking D2 receptor functions and that these functional properties of D3 receptors, detected in mice with a D2 mutant genetic background, remain masked when the abundant D2 receptor is expressed. 相似文献