Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UNIPROT:P06889 (Mol)
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We used a PCR-based subtraction method, representational difference analysis of cDNA (cDNA--RDA), to identify genes with a higher expression in leiomyomas in comparison with the corresponding myometrium during the proliferative phase of the menstrual cycle. Increased expression of the genes for pregnancy-associated plasma protein A (PAPPA), tomoregulin, cellular retinoid acid binding protein 1 (CRABP1), zinc finger protein 185 (ZFP 185) and latent transforming growth factor beta binding protein 2 (LTBP2) was demonstrated in individual leiomyoma samples compared with corresponding myometrium. Additionally, a specific positive immunostaining of LTBP2 was found in the smooth muscle cells of both leiomyomas and myometrium. These genes may be part of previously unidentified molecular mechanisms responsible for the selective growth advantage of leiomyomas compared with myometrium. This work expands our knowledge about the molecular nature of leiomyomas and provides novel candidate genes to further explore in relation to their function during leiomyoma growth.
Mol Hum Reprod 2002 Mar
PMID:Identification of genes with higher expression in human uterine leiomyomas than in the corresponding myometrium. 1187 Feb 32

Gene expression signals involved in ischemic injury, extracellular matrix composition and fibrosis defined by global mRNA profiling of the human left ventricular myocardium. The mechanism(s) by which acute and chronic myocardial ischemia translate into the characteristic features of ischemic cardiomyopathy is unresolved at present. We hypothesized that such translation relates to modification of specific gene expression programs during acute and chronic ischemic insults to the myocardium. Global mRNA expression profiles by Affymetrix HG_U133A GeneChip analysis on 33 samples was performed on non-failing human left ventricular myocardium during acute and chronic ischemia in 6 patients undergoing coronary artery by-pass grafting. Results were confirmed by real-time quantitative RT-PCR in 14 patients and supported by histology and immunohistochemistry analyses. Acute ischemia elicited an acute inflammatory response including IL-6, IL-8, MCP-1, VCAM-1 and CYR-61 with an attenuated increase of IL-6 and IL-8 in chronic ischemic myocardium compared to normal myocardium. High mRNA expression of connective tissue growth factor (CTGF) was present in chronic ischemic myocardium with a high degree of correlation between CTGF and mRNA expression of specific genes (e.g. thrombospondin 4, collagen type Ialpha2, versican, adlican, latent transforming growth factor beta binding protein 2 and fibronectin) involved in extracellular matrix remodelling. In conclusion, acute inflammatory induction (e.g. IL-8, IL-6, VCAM-1 and MCP-1) and an acute phase CCN family gene with effects on matrix interactions (CYR-61) might play important roles in the coupling between acute ischemic episodes and chronic myocardial remodelling. In addition, the findings support an important role of CTGF signalling in chronic extracellular matrix remodelling in chronic coronary artery disease.
J Mol Cell Cardiol 2007 Apr
PMID:Gene expression signals involved in ischemic injury, extracellular matrix composition and fibrosis defined by global mRNA profiling of the human left ventricular myocardium. 1734 75

Glaucoma is a heterogeneous group of optic neuropathies that manifests by optic nerve head cupping or degeneration of the optic nerve, resulting in a specific pattern of visual field loss. Glaucoma leads to blindness if left untreated, and is considered the second leading cause of blindness worldwide. The subgroup primary congenital glaucoma (PCG) is characterized by an anatomical defect in the trabecular meshwork, and age at onset in the neonatal or infantile period. It is the most severe form of glaucoma. CYP1B1 was the first gene genetically linked to PCG, and CYP1B1 mutations are the cause of disease in 20-100% of patients in different populations. Here, we report that LTBP2 encoding latent transforming growth factor beta binding protein 2 is a PCG causing gene, confirming results recently reported. A disease-associated locus on chromosome 14 was identified by performing whole genome autozygosity mapping in Iranian PCG families using high density single nucleotide polymorphism chips, and two disease-segregating loss of function mutations in LTBP2, p.Ser472fsX3 and p.Tyr1793fsX55, were observed in two families while sequencing candidate genes in the locus. The p.Tyr1793fsX55 mutation affects an amino acid close to the C-terminal of the encoded protein. Subsequently, LTBP2 expression was shown in human eyes, including the trabecular meshwork and ciliary processes that are thought to be relevant to the etiology of PCG.
Hum Mol Genet 2009 Oct 15
PMID:Loss of function mutations in the gene encoding latent transforming growth factor beta binding protein 2, LTBP2, cause primary congenital glaucoma. 1965 77