Τετάρτη 19 Οκτωβρίου 2022

Sequence Analysis of Epstein‐Barr virus RPMS1 Gene in malignant hematopathy

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Abstract

The RPMS1 gene is the only member of the BamHI-A rightward transcripts (BARTs) family for which a full-length cDNA has been identified, and RPMS1 transcript has been confirmed in many EBV-positive malignancies. However, the effects of sequence variations of RPMS1 in hematological malignancies and their biological significance are unclear. To explore the association between RPMS1 gene variations and hematological malignancy, the RPMS1 gene of 391 EBV-positive samples from patients with EBV-positive leukemia, myelodysplastic syndromes (MDS) and lymphoma in northern China were sequenced. On the basis of phylogenetic tree and mutation characteristics of RPMS1, all the sequences were divided into five major types: RPMS1-A, RPMS1-B, RPMS1-C, RPMS1-E, and RPMS1-F. RPMS1-A type, similar to the prototype B95-8, was identified in 71.87% (281/391) of samples and was the major typ e in all subpopulations. The frequency of RPMS1-F type was significantly higher in all malignant hematopathy groups than in healthy donors. The Hodgkin lymphoma (HL) group contained more RPMS1-F than other malignant hematopathy groups, and acute myeloid leukemia (AML) contained more RPMS1-C type than other malignant hematopathy groups. Therefore, RPMS1-A is the main type of RPMS1 gene in northern China, and RPMS1-F may be associated with hematologic malignancies.

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