Biomaterial Database

Human endogenous retrovirus type K encoded Np9 oncoprotein induces DNA damage response. 2024

Jungang Chen, and Jiaojiao Fan, and Zhen Lin, and Lu Dai, and Zhiqiang Qin

Department of Pathology, Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA.

Human endogenous retrovirus sequences (HERVs) constitute up to 8% of the human genome, yet not all HERVs remain silent passengers within our genomes. Some HERVs, especially the HERV type K (HERV-K), have been found to be frequently transactivated in a variety of inflammatory diseases and human cancers. Np9, a 9-kDa HERV-K encoded protein, has been reported as an oncoprotein and found present in a variety of tumors and transformed cells. In the current study, we for the first time reported that ectopic expression of Np9 protein was able to induce DNA damage response from host cells especially through upregulation of γH2AX. Furthermore, we found that direct knockdown of Np9 by RNAi in Kaposi's Sarcoma-associated herpesvirus (KSHV) infected cells effectively reduced LANA expression, the viral major latent oncoprotein in vitro and in vivo, which may represent a novel strategy against virus-associated malignancies.

UI	MeSH Term	Description	Entries
D009369	Neoplasms	New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms.	Benign Neoplasm,Cancer,Malignant Neoplasm,Tumor,Tumors,Benign Neoplasms,Malignancy,Malignant Neoplasms,Neoplasia,Neoplasm,Neoplasms, Benign,Cancers,Malignancies,Neoplasias,Neoplasm, Benign,Neoplasm, Malignant,Neoplasms, Malignant
D004260	DNA Repair	The removal of DNA LESIONS and/or restoration of intact DNA strands without BASE PAIR MISMATCHES, intrastrand or interstrand crosslinks, or discontinuities in the DNA sugar-phosphate backbones.	DNA Damage Response
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015513	Oncogene Proteins	Proteins coded by oncogenes. They include proteins resulting from the fusion of an oncogene and another gene (ONCOGENE PROTEINS, FUSION).	Oncogene Products,Oncoprotein,Oncoproteins,Oncogene Product,Oncogene Protein,Product, Oncogene,Products, Oncogene,Protein, Oncogene,Proteins, Oncogene
D019288	Herpesvirus 8, Human	A species in the genus RHADINOVIRUS, subfamily GAMMAHERPESVIRINAE, isolated from patients with AIDS-related and "classical" Kaposi sarcoma.	Herpesvirus, Kaposi Sarcoma-Associated,KSHV,Kaposi Sarcoma-Associated Herpesvirus,HHV-8,Herpesvirus, Kaposi's Sarcoma-Associated,Human Herpesvirus 8,Kaposi's Sarcoma-Associated Herpesvirus,Herpesvirus, Kaposi Sarcoma Associated,Herpesvirus, Kaposi's Sarcoma Associated,Herpesvirus, Kaposis Sarcoma-Associated,Herpesviruses, Kaposi's Sarcoma-Associated,Kaposi Sarcoma Associated Herpesvirus,Kaposi's Sarcoma Associated Herpesvirus,Kaposi's Sarcoma-Associated Herpesviruses,Kaposis Sarcoma-Associated Herpesvirus,Sarcoma-Associated Herpesvirus, Kaposi,Sarcoma-Associated Herpesviruses, Kaposi's
D020077	Endogenous Retroviruses	Retroviruses that have integrated into the germline (PROVIRUSES) that have lost infectious capability but retained the capability to transpose.	ERV,ERVs,Endogenous Retrovirus,HERV,HERVs,Human Endogenous Retrovirus,Human Endogenous Retroviruses,Retroviruses, Endogenous,Endogenous Retrovirus, Human,Endogenous Retroviruses, Human,Retrovirus, Endogenous,Retrovirus, Human Endogenous,Retroviruses, Human Endogenous