Expression of Envelope Protein Encoded by Endogenous Retrovirus K102 in Rheumatoid Arthritis Neutrophils.
Expression of Envelope Protein Encoded by Endogenous Retrovirus K102 in Rheumatoid Arthritis Neutrophils.
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DOI:
10.3390/microorganisms11051310
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发表时间:
2023-05-17
期刊:
影响因子:
4.5
通讯作者:
中科院分区:
文献类型:
--
作者:
Many patients suffering from autoimmune diseases have autoantibodies against proteins encoded by genomic retroelements, suggesting that normal epigenetic silencing is insufficient to prevent the production of the encoded proteins for which immune tolerance appears to be limited. One such protein is the transmembrane envelope (Env) protein encoded by human endogenous retrovirus K (HERV-K). We reported recently that patients with rheumatoid arthritis (RA) have IgG autoantibodies that recognize Env. Here, we use RNA sequencing of RA neutrophils to analyze HERV-K expression and find that only two loci with an intact open-reading frame for Env, HERV-K102, and K108 are expressed, but only the former is increased in RA. In contrast, other immune cells express more K108 than K102. Patient autoantibodies recognized endogenously expressed Env in breast cancer cells and in RA neutrophils but not healthy controls. A monoclonal anti-Env antibody also detected Env on the surface of RA neutrophils but very little on the surface of other immune cells. We conclude that HERV-K102 is the locus that produces Env detectable on the surface of neutrophils in RA. The low levels of HERV-K108 transcripts may contribute only marginally to cell surface Env on neutrophils or other immune cells in some patients.
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影响因子:
3.7
作者:
Khadjinova AI;Wang X;Laine A;Ukadike K;Eckert M;Stevens A;Bengtsson AA;Lood C;Mustelin T
通讯作者:
Mustelin T
影响因子:
3.3
作者:
de Mulder M;SenGupta D;Deeks SG;Martin JN;Pilcher CD;Hecht FM;Sacha JB;Nixon DF;Michaud HA
通讯作者:
Michaud HA
影响因子:
27.4
作者:
Ejtehadi, HD;Freimanis, GL;Nelson, PN
通讯作者:
Nelson, PN
影响因子:
4.6
作者:
Freimanis, G.;Hooley, P.;Nelson, P. N.
通讯作者:
Nelson, P. N.
影响因子:
4.6
作者:
Mameli, G.;Erre, G. L.;Sechi, L. A.
通讯作者:
Sechi, L. A.