نتایج جستجو برای: human islet cell antibody ica

تعداد نتایج: 3014084  

2018
Yun Zhang Garth L Warnock Ziliang Ao Yoo Jin Park Nooshin Safikhan Aziz Ghahary Lucy Marzban

Amyloid formation in the pancreatic islets due to aggregation of human islet amyloid polypeptide (hIAPP) contributes to reduced β-cell mass and function in type 2 diabetes (T2D) and islet transplantation. Protein kinase B (PKB) signaling plays a key role in the regulation of β-cell survival, function and proliferation. In this study, we used human and hIAPP-expressing transgenic mouse islets in...

Journal: :The Journal of clinical investigation 1987
C Boitard G Feutren L Castano M Debray-Sachs R Assan J Hors J F Bach

Anti-islet cell and anti-insulin antibody production was studies over a 12-mo period in 82 recently diagnosed diabetics randomly receiving either cyclosporin or placebo. Cyclosporin had only minimal effects on the production of anti-islet cell antibodies whether directed to islet cytoplasmic (immunofluorescence) or membrane (cytotoxicity assay) antigens even in patients undergoing remission. Th...

Akbar Vahdati Edna Abkar Minoo Adib, Shirin Kashfi, Taji Afrooz

Background: Erythropoietin (EPO) was first known as a factor for red blood cell proliferation and differentiation. New studies show the effects of EPO on immune system. Objective: In this study, the effects of pretreatment with recombinant human erythropoietin (rHuEPO) on the anti-human leukocyte antibody (anti-HLA) titer were determined. Methods: Three groups of rats were sensitized with human...

2000
Wilma Suarez-Pinzon Gregory S. Korbutt Robert Power Jonathan Hooton Ray V. Rajotte Alex Rabinovitch

Testicular Sertoli cells protect pancreatic islet grafts from alloand autoimmune destruction; however, the mechanism(s) of protection is unclear. The aim of this study was to determine whether Fas ligand (FasL) and/ or transforming growth factor (TGF), immunoregulatory proteins produced by Sertoli cells, might mediate the protective effects of these cells against autoimmune destruction of islet...

Journal: :Diabetes 2008
Babak Movahedi Conny Gysemans Daniel Jacobs-Tulleneers-Thevissen Chantal Mathieu Daniel Pipeleers

OBJECTIVE Engraftment and function of human islet cell implants is considered to be dependent on their rapid and adequate revascularization. Studies with rodent islet grafts have shown that vascular endothelial growth factor (VEGF) expression by beta-cells can promote this process. The present work examines whether human islet preparations produce VEGF as well as interleukin (IL)-8, another ang...

Journal: :PLoS ONE 2008
Kuo Ching Chao Kuo Fang Chao Yu Show Fu Shing Hwa Liu

BACKGROUND There is a widespread interest in developing renewable sources of islet-replacement tissue for type I diabetes mellitus. Human mesenchymal cells isolated from the Wharton's jelly of the umbilical cord (HUMSCs), which can be easily obtained and processed compared with embryonic and bone marrow stem cells, possess stem cell properties. HUMSCs may be a valuable source for the generation...

2016
Ansarullah Colette Free Jenica Christopherson Quanhai Chen Jie Gao Chengyang Liu Ali Naji Alex Rabinovitch Zhiguang Guo

Using humanized mice with functional human islets, we investigated whether activating GPR119 by PSN632408, a small molecular agonist, can stimulate human β-cell regeneration in vivo. Human islets were transplanted under the left kidney capsule of immunodeficient mice with streptozotocin- (STZ-) induced diabetes. The recipient mice were treated with PSN632408 or vehicle and BrdU daily. Human isl...

Journal: :Cell metabolism 2012
Ignasi Morán Ildem Akerman Martijn van de Bunt Ruiyu Xie Marion Benazra Takao Nammo Luis Arnes Nikolina Nakić Javier García-Hurtado Santiago Rodríguez-Seguí Lorenzo Pasquali Claire Sauty-Colace Anthony Beucher Raphael Scharfmann Joris van Arensbergen Paul R Johnson Andrew Berry Clarence Lee Timothy Harkins Valery Gmyr François Pattou Julie Kerr-Conte Lorenzo Piemonti Thierry Berney Neil Hanley Anna L Gloyn Lori Sussel Linda Langman Kenneth L Brayman Maike Sander Mark I McCarthy Philippe Ravassard Jorge Ferrer

A significant portion of the genome is transcribed as long noncoding RNAs (lncRNAs), several of which are known to control gene expression. The repertoire and regulation of lncRNAs in disease-relevant tissues, however, has not been systematically explored. We report a comprehensive strand-specific transcriptome map of human pancreatic islets and β cells, and uncover >1100 intergenic and antisen...

2009
Tihamer Orban Jay M. Sosenko David Cuthbertson Jeffrey P. Krischer Jay S. Skyler Richard Jackson Liping Yu Jerry P. Palmer Desmond Schatz George Eisenbarth

OBJECTIVE There is limited information from large-scale prospective studies regarding the prediction of type 1 diabetes by specific types of pancreatic islet autoantibodies, either alone or in combination. Thus, we studied the extent to which specific autoantibodies are predictive of type 1 diabetes. RESEARCH DESIGN AND METHODS Two cohorts were derived from the first screening for islet cell ...

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