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2 results for “RGS1”
Clinicopathological characteristics and genomic profile of primary sinonasal tract diffuse large B cell lymphoma (DLBCL) reveals gain at 1q31 and RGS1 encoding protein; high RGS1 immunohistochemical expression associates with poor overall survival in DLBCL not otherwise specified (NOS)
<p>Raw annonymized data, OncoScan CEL files of the manuscript.</p> <p>PMID: 27775850</p> <p>DOI: 10.1111/his.13106</p> <p>ABSTRACT:</p> <p><strong>Aims: </strong> We aimed to define the clinicopathological characteristics of 29 primary sinonasal diffuse large B cell lymphoma (DLBCL<sup>sn</sup> ) in a series of 240 cases of DLBCL not otherwise specified [DLBCL<sup>all (</sup><sup>NOS</sup><sup>)</sup> ], including DLBCL<sup>sn</sup> training set (n = 11) and validation set (n = 18), and DLBCL<sup>non-sn</sup> (n = 211).</p> <p><strong>Methods and results: </strong> In the training set, 82% had a non-germinal center B-cell-like (Hans' Classifier) (non-GCB) phenotype and 18% were Epstein-Barr virus-encoded small RNAs (EBER)<sup>+</sup> . The genomic profile showed gains<sup>(+)</sup> of 1q21.3q31.2 (55%), 10q24.1 (46%), 11q14.1 (46%) and 18q12.1q23 (46%); losses<sup>(-)</sup> of 6q26q27 (55%) and 9p21.3 (64%); and copy number neutral loss of heterozygosity (LOH) (acquired uniparental disomy, UPD) at 6p25.3p21.31 (36%). This profile is comparable to DLBCL<sup>NOS</sup> (GSE11318, n = 203.) and closer to non-GCB/activated B-cell-like subtype (ABC). Nevertheless, +1q31, -9p21.3 and -10q11.1q26.2 were more characteristic of DLBCL<sup>sn</sup> (P < 0.001). Array results were verified successfully by fluorescence in situ hybridization (FISH) on +1q21.3 (CKS1B), -6q26 (PARK2), +8q24.21 (MYC), -9p21.3 (MTAP, CDKN2A/B), -17p13.1 (TP53) and +18q21.33 (BCL2) with 82-91% agreement. Minimal common regions included biologically relevant genes of MNDA (+1q23.1), RGS1 and RGS13 (+1q31.2), FOXP1 (+3p13), PRDM1 (BLIMP1) and PARK2 (-6q21q26), MYC (+8q24.21), CDKN2A (-9p21.3), PTEN (-10q23.31), MDM2 (+12q15), TP53 (-17p13.1) and BCL2 (+18q21.33). Correlation between DNA copy number and protein immunohistochemistry was confirmed for RGS1, RGS13, FOXP1, PARK2 and BCL2. The microenvironment had high infiltration of M2-like tumour associated macrophages (TAMs) and CD8<sup>+</sup> T lymphocytes that associated with higher genomic instability. The DLBCL<sup>sn</sup> validation set confirmed the clinicopathological characteristics, all FISH loci and immunohistochemistry (IHC) for RGS1. RGS1, one of the most frequently altered genes, was analysed by IHC in DLBCL<sup>all</sup> and high RGS1 expression associated with non-GCB, EBER<sup>+</sup> and unfavourable overall survival (hazard ratio = 1.794; P = 0.016).</p> <p><strong>Conclusions: </strong> DLBCL<sup>sn</sup> has a characteristic genomic profile. High RGS1 IHC expression associates with poor overall survival in DLBCL<sup>all (</sup><sup>NOS</sup><sup>)</sup> .</p>
RGS1 Modulates Autophagic and Metabolic Programs and Is a Critical Mediator of Human Treg Function
GEO Series GSE241931. Homo sapiens. 9 samples. Type: Expression profiling by high throughput sequencing.
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