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TGFBI

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https://www.readbyqxmd.com/read/27829782/genetic-analysis-of-chst6-and-tgfbi-in-turkish-patients-with-corneal-dystrophies-five-novel-variations-in-chst6
#1
Fulya Yaylacioglu Tuncay, Gülsüm Kayman Kurekci, Sezen Guntekin Ergun, Ozge Tugce Pasaoglu, Rustu Fikret Akata, Pervin Rukiye Dincer
PURPOSE: To identify pathogenic variations in carbohydrate sulfotransferase 6 (CHST6) and transforming growth factor, beta-induced (TGFBI) genes in Turkish patients with corneal dystrophy (CD). METHODS: In this study, patients with macular corneal dystrophy (MCD; n = 18), granular corneal dystrophy type 1 (GCD1; n = 12), and lattice corneal dystrophy type 1 (LCD1; n = 4), as well as 50 healthy controls, were subjected to clinical and genetic examinations. The level of antigenic keratan sulfate (AgKS) in the serum samples of patients with MCD was determined with enzyme-linked immunosorbent assay (ELISA) to immunophenotypically subtype the patients as MCD type I and MCD type II...
2016: Molecular Vision
https://www.readbyqxmd.com/read/27781206/a-case-of-transforming-growth-factor-%C3%AE-induced-gene-related-oculorenal-syndrome-granular-corneal-dystrophy-type-ii-with-a-unique-nephropathy
#2
Yoichi Iwafuchi, Tetsuo Morioka, Yuko Oyama, Kandai Nozu, Kazumoto Iijima, Ichiei Narita
Many types of inherited renal diseases have ocular features that occasionally support a diagnosis. The following study describes an unusual example of a 40-year-old woman with granular corneal dystrophy type II complicated by renal involvement. These two conditions may coincidentally coexist; however, there are some reports that demonstrate an association between renal involvement and granular corneal dystrophy type II. Granular corneal dystrophy type II is caused by a mutation in the transforming growth factor-β-induced (TGFBI) gene...
September 2016: Case Reports in Nephrology and Dialysis
https://www.readbyqxmd.com/read/27741017/vortex-pattern-of-corneal-deposits-in-granular-corneal-dystrophy-associated-with-the-p-argr555wtrp-mutation-in-tgfbi
#3
Jaffer M Kattan, Juan Carlos Serna-Ojeda, Anushree Sharma, Eung K Kim, Arturo Ramirez-Miranda, Marisa Cruz-Aguilar, Aleck E Cervantes, Ricardo F Frausto, Juan Carlos Zenteno, Enrique O Graue-Hernandez, Anthony J Aldave
PURPOSE: To describe 2 unrelated families with multiple members demonstrating a less commonly recognized vortex pattern of corneal deposits confirmed to be granular corneal dystrophy type 1 (GCD1) after identification of the p.(Arg555Trp) mutation in the transforming growth factor β-induced gene (TGFBI). METHODS: A slit-lamp examination was performed on individuals from 2 families, one of Mexican descent and a second of Italian descent. After DNA extraction from affected individuals and their unaffected relatives, TGFBI screening was performed...
October 12, 2016: Cornea
https://www.readbyqxmd.com/read/27737463/genotype-phenotype-correlation-for-tgfbi-corneal-dystrophies-identifies-p-g623d-as-a-novel-cause-of-epithelial-basement-membrane-dystrophy
#4
Cerys J Evans, Alice E Davidson, Nicole Carnt, Karla E Rojas López, Neyme Veli, Caroline M Thaung, Stephen J Tuft, Alison J Hardcastle
Purpose: The majority of anterior corneal dystrophies are caused by dominant mutations in TGFBI (transforming growth factor β-induced) collectively known as the epithelial-stromal TGFBI dystrophies. Most cases of epithelial basement membrane dystrophy (EBMD) are thought to result from a degenerative (nongenetic) process; however, a minority of cases are associated with specific TGFBI mutations. We evaluated the spectrum of TGFBI mutations and associated phenotypes in a United Kingdom cohort with typical epithelial-stromal TGFBI dystrophies and an EBMD cohort...
October 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27622658/sparc-regulates-transforming-growth-factor-beta-induced-tgfbi-extracellular-matrix-deposition-and-paclitaxel-response-in-ovarian-cancer-cells
#5
David A Tumbarello, Melissa R Andrews, James D Brenton
TGFBI has been shown to sensitize ovarian cancer cells to the cytotoxic effects of paclitaxel via an integrin receptor-mediated mechanism that modulates microtubule stability. Herein, we determine that TGFBI localizes within organized fibrillar structures in mesothelial-derived ECM. We determined that suppression of SPARC expression by shRNA decreased the deposition of TGFBI in mesothelial-derived ECM, without affecting its overall protein expression or secretion. Conversely, overexpression of SPARC increased TGFBI deposition...
2016: PloS One
https://www.readbyqxmd.com/read/27622074/carcinogenesis-of-renal-cell-carcinoma-reflected-in-hla-ligands-a-novel-approach-for-synergistic-peptide-vaccination-design
#6
Martin G Klatt, Daniel J Kowalewski, Heiko Schuster, Moreno Di Marco, Jörg Hennenlotter, Arnulf Stenzl, Hans-Georg Rammensee, Stefan Stevanović
Despite recent advances in immunotherapy of renal cell carcinoma (RCC), peptide vaccination strategies still lack an approach for personalized peptide vaccination that takes intra- and inter-tumoral heterogeneity and biological characteristics into account. In this study, we use an immunoprecipitation and mass spectrometry-based approach supplemented by network analysis of HLA ligands to target this goal. By analyzing HLA-presented peptides for HLA class I and II of 11 malignant and 6 non-malignant kidney tissue samples, more than 2,700 peptides and 1,600 corresponding source proteins were identified...
August 2016: Oncoimmunology
https://www.readbyqxmd.com/read/27590038/new-histopathologic-and-ultrastructural-findings-in-reis-b%C3%A3-cklers-corneal-dystrophy-caused-by-the-arg124leu-mutation-of-tgfbi-gene
#7
Wen-Ya Qiu, Li-Bin Zheng, Fei Pan, Bei-Bei Wang, Yu-Feng Yao
BACKGROUND: Reis-Bücklers corneal dystrophy (RBCD) was consistently reported as a corneal dystrophy only affected Bowman's layer and superficial corneal stroma, and superficial keratectomy was a recommendation surgery for treatment in literatures. The study reported new histopathological and ultrastructural findings in RBCD caused by the Arg124Leu mutation of transforming growth factor induced (TGFBI) gene in a four-generation Chinese pedigree. METHODS: Subjects including eight patients and seven unaffected family members received slit-lamp biomicroscopy and photography...
2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27578826/ovarian-cancer-peritoneal-cell-interactions-promote-extracellular-matrix-processing
#8
Carmela Ricciardelli, Noor A Lokman, Miranda P Ween, Martin Oehler
Ovarian cancer has a distinct tendency for metastasizing via shedding of cancerous cells into the peritoneal cavity and implanting onto the peritoneum that lines the pelvic organs. Once ovarian cancer cells adhere to the peritoneal cells, they migrate through the peritoneal layer and invade local organs. Alterations in the extracellular environment are critical for tumour initiation, progression and intra-peritoneal dissemination. To increase our understanding of the molecular mechanisms involved in ovarian cancer metastasis and to identify novel therapeutic targets we recently studied the interaction of ovarian cancer and peritoneal cells using a proteomic approach...
August 30, 2016: Endocrine-related Cancer
https://www.readbyqxmd.com/read/27546376/transcriptional-targets-of-twist1-in-the-cranial-mesoderm-regulate-cell-matrix-interactions-and-mesenchyme-maintenance
#9
Heidi Bildsoe, Xiaochen Fan, Emilie E Wilkie, Ator Ashoti, Vanessa J Jones, Melinda Power, Jing Qin, Junwen Wang, Patrick P L Tam, David A F Loebel
TWIST1, a basic helix-loop-helix transcription factor is essential for the development of cranial mesoderm and cranial neural crest-derived craniofacial structures. We have previously shown that, in the absence of TWIST1, cells within the cranial mesoderm adopt an abnormal epithelial configuration via a process reminiscent of a mesenchymal to epithelial transition (MET). Here, we show by gene expression analysis that loss of TWIST1 in the cranial mesoderm is accompanied by a reduction in the expression of genes that are associated with cell-extracellular matrix interactions and the acquisition of mesenchymal characteristics...
October 1, 2016: Developmental Biology
https://www.readbyqxmd.com/read/27442190/gene-expression-profile-of-extracellular-matrix-and-adhesion-molecules-in-the-human-normal-corneal-stroma
#10
Ying Liu, Hu Huang, Guoying Sun, Saeed Alwadani, Richard D Semba, Gerard A Lutty, Samuel Yiu, Deepak P Edward
PURPOSE: There is limited information on region-specific gene expression in the human corneal stroma. In this study, we aimed to investigate the expression profile of the extracellular matrix and adhesion molecules in the normal corneal stroma using laser capture microdissection (LCM) and molecular techniques. METHODS: Frozen sections of human cornea without ocular disease were used to isolate the central and peripheral corneal stromal keratocytes by LCM. RNA was extracted from LCM-captured tissues and the RT(2) Profiler PCR Arrays were used to examine the expression profile of extracellular matrix and adhesion molecules in the central and peripheral stroma...
July 21, 2016: Current Eye Research
https://www.readbyqxmd.com/read/27402970/variant-lattice-corneal-dystrophy-associated-with-compound-heterozygous-mutations-in-the-tgfbi-gene
#11
Lydia Bai-Tsin Ann, Alessandro Abbouda, Ricardo F Frausto, Samira Huseynli, Kishan Gupta, Jorge L Alió, Anthony J Aldave
BACKGROUND/AIMS: To report the clinical, histopathological and genetic features of a variant of lattice corneal dystrophy (LCD) associated with two pathogenic mutations in the transforming growth factor-B-induced (TGFBI) gene. METHODS: Clinical characterisation was performed by slit lamp examination and in vivo confocal microscopic imaging (IVCM). Histopathological characterisation was performed with light microscopic examination of an excised corneal button and a peripheral blood samples were collected for TGFBI screening...
July 11, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27373828/4-phenylbutyric-acid-reduces-mutant-tgfbip-levels-and-er-stress-through-activation-of-erad-pathway-in-corneal-fibroblasts-of-granular-corneal-dystrophy-type-2
#12
Seung-Il Choi, Eunhee Lee, Jang Bin Jeong, Begum Akuzum, Yong-Sun Maeng, Tae-Im Kim, Eung Kweon Kim
Granular corneal dystrophy type 2 (GCD2) is caused by a point mutation (R124H) in the transforming growth factor β-induced (TGFBI) gene. In GCD2 corneal fibroblasts, secretion of the accumulated mutant TGFBI-encoded protein (TGFBIp) is delayed via the endoplasmic reticulum (ER)/Golgi-dependent secretory pathway. However, ER stress as the pathogenic mechanism underlying GCD2 has not been fully characterized. The aim of this study was to confirm whether ER stress is linked to GCD2 pathogenesis and whether the chemical chaperone, 4-phenylbutyric acid (4-PBA), could be exploited as a therapy for GCD2...
September 2, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27350955/genetics-in-keratoconus-where-are-we
#13
REVIEW
Yelena Bykhovskaya, Benjamin Margines, Yaron S Rabinowitz
Keratoconus (KC) is a non-inflammatory thinning and protrusion of the cornea in which the cornea assumes a conical shape. Complex etiology of this condition at present remains an enigma. Although environmental factors have been involved in KC pathogenesis, strong underlining genetic susceptibility has been proven. The lack of consistent findings among early genetic studies suggested a heterogeneity and complex nature of the genetic contribution to the development of KC. Recently, genome-wide linkage studies (GWLS) and genome-wide association studies (GWAS) were undertaken...
2016: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/27348782/tgfbi-gene-mutation-analysis-in-chinese-families-with-corneal-dystrophies
#14
Jianqiu Cai, Leru Zhu, Yi Zha, Qianyan Kang
AIMS: To identify transforming growth factor beta-induced (TGFBI) gene mutations in four Chinese families affected by corneal dystrophies. METHODS: In this study, three families (21 patients and 18 normal relatives), respectively, with Reis-Bücklers corneal dystrophy (RBCD), classic lattice corneal dystrophy (LCDI), and variant LCD (LCDI/IIIA) were assessed. All subjects underwent a complete ophthalmological evaluation, including biomicroscopic inspection and dilated fundus examination...
July 2016: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/27164760/-to-protect-corneal-transparency-against-diseases
#15
Tomohiko Usui
To protect corneal transparency, we tried to develop a new therapeutic strategy for corneal neovascularization, corneal scar, and TGFBI-related corneal dystrophy using nucleic acid drug. 1. The expression of angiopietin-like protein 2 (Angptl2) markedly increased in the neovascularized corneas compared to the normal cornea, and Angtpl2 was(a potent inducer of inflammatory corneal neovascularization. We have produced a single-stranded proline-modified short hairpin anti-Angptl2 ribonucleric acid interference (RNAi) molecule that is carried in a lipid nanoparticle for topical application...
March 2016: Nippon Ganka Gakkai Zasshi
https://www.readbyqxmd.com/read/27143554/increased-adamts1-mediates-sparc-dependent-collagen-deposition-in-the-aging-myocardium
#16
Hiroe Toba, Lisandra E de Castro Brás, Catalin F Baicu, Michael R Zile, Merry L Lindsey, Amy D Bradshaw
Secreted protein acidic and rich in cysteine (SPARC) is a collagen-binding matricellular protein highly expressed during fibrosis. Fibrosis is a prominent component of cardiac aging that reduces myocardial elasticity. Previously, we reported that SPARC deletion attenuated myocardial stiffness and collagen deposition in aged mice. To investigate the mechanisms by which SPARC promotes age-related cardiac fibrosis, we evaluated six groups of mice (n = 5-6/group): young (3-5 mo old), middle-aged (10-12 mo old), and old (18-29 mo old) C57BL/6 wild type (WT) and SPARC-null (Null) mice...
June 1, 2016: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27028151/novel-tgfbi-mutation-p-leu558arg-in-a-lattice-corneal-dystrophy-patient
#17
Lubica Dudakova, Michalis Palos, Katerina Jirsova, Pavlina Skalicka, Pavel Dundr, Petra Liskova
No abstract text is available yet for this article.
March 30, 2016: Ophthalmic Genetics
https://www.readbyqxmd.com/read/27025787/proteomics-of-thyroid-tumours-provides-new-insights-into-their-molecular-composition-and-changes-associated-with-malignancy
#18
Juan Martínez-Aguilar, Roderick Clifton-Bligh, Mark P Molloy
Around 5% of the general population have palpable thyroid nodules. Although most thyroid tumours are benign, thyroid cancer represents the most common malignancy of the endocrine system, comprising mainly follicular and papillary thyroid carcinomas. Previous studies have shed some light on the molecular pathogenesis of thyroid cancer but there have not been any comprehensive mass spectrometry-based proteomic studies of large scale to reveal protein expression differences between thyroid tumours and the molecular alterations associated with tumour malignancy...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27025388/genes-frequently-coexpressed-with-hoxc8-provide-insight-into-the-discovery-of-target-genes
#19
Ruthala Kalyani, Ji-Yeon Lee, Hyehyun Min, Heejei Yoon, Myoung Hee Kim
Identifying Hoxc8 target genes is at the crux of understanding the Hoxc8-mediated regulatory networks underlying its roles during development. However, identification of these genes remains difficult due to intrinsic factors of Hoxc8, such as low DNA binding specificity, context-dependent regulation, and unknown cofactors. Therefore, as an alternative, the present study attempted to test whether the roles of Hoxc8 could be inferred by simply analyzing genes frequently coexpressed with Hoxc8, and whether these genes include putative target genes...
May 31, 2016: Molecules and Cells
https://www.readbyqxmd.com/read/26969027/knockdown-of-cullin-4a-inhibits-growth-and-increases-chemosensitivity-in-lung-cancer-cells
#20
Ming-Szu Hung, I-Chuan Chen, Liang You, David M Jablons, Ya-Chin Li, Jian-Hua Mao, Zhidong Xu, Jr-Hau Lung, Cheng-Ta Yang, Shih-Tung Liu
Cullin 4A (Cul4A) has been observed to be overexpressed in various cancers. In this study, the role of Cul4A in the growth and chemosensitivity in lung cancer cells were studied. We showed that Cul4A is overexpressed in lung cancer cells and tissues. Knockdown of the Cul4A expression by shRNA in lung cancer cells resulted in decreased cellular proliferation and growth in lung cancer cells. Increased sensitivity to gemcitabine, a chemotherapy drug, was also noted in those Cul4A knockdown lung cancer cells. Moreover, increased expression of p21, transforming growth factor (TGF)-β inducible early gene-1 (TIEG1) and TGF beta-induced (TGFBI) was observed in lung cancer cells after Cul4A knockdown, which may be partially related to increased chemosensitivity to gemcitabine...
July 2016: Journal of Cellular and Molecular Medicine
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