IFN-gamma AU-rich element removal promotes chronic IFN-gamma expression and autoimmunity in mice.
IFN-gamma AU-rich element removal promotes chronic IFN-gamma expression and autoimmunity in mice.
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DOI:
10.1016/j.jaut.2014.02.003
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发表时间:
2014-09
影响因子:
12.8
通讯作者:
Young HA
中科院分区:
文献类型:
--
作者:
Hodge DL;Berthet C;Coppola V;Kastenmüller W;Buschman MD;Schaughency PM;Shirota H;Scarzello AJ;Subleski JJ;Anver MR;Ortaldo JR;Lin F;Reynolds DA;Sanford ME;Kaldis P;Tessarollo L;Klinman DM;Young HA
We generated a mouse model with a 162 nt AU-rich element (ARE) region deletion in the 3′ untranslated region (3′UTR) of the interferon-gamma (IFN-γ) gene that results in chronic circulating serum IFN-γ levels. Mice homozygous for the ARE deletion (ARE-Del) −/− present both serologic and cellular abnormalities typical of patients with systemic lupus erythematosus (SLE). ARE-Del−/− mice display increased numbers of pDCs in bone marrow and spleen. Addition of IFN-γ to Flt3-ligand (Flt3L) treated in vitro bone marrow cultures results in a 2-fold increase in pDCs with concurrent increases in IRF8 expression. Marginal zone B (MZB) cells and marginal zone macrophages (MZMs) are absent in ARE-Del−/− mice. ARE-Del+/− mice retain both MZB cells and MZMs and develop no or mild autoimmunity. However, low dose clodronate treatment in ARE-Del+/− mice specifically eliminates MZMs and promotes anti-DNA antibody development and glomerulonephritis. Our findings demonstrate the consequences of a chronic IFN-γ milieu on B220+ cell types and in particular the impact of MZB cell loss on MZM function in autoimmunity. Furthermore, similarities between disease states in ARE-Del−/− mice and SLE patients suggest that IFN-γ may not only be a product of SLE but may be critical for disease onset and progression.
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影响因子:
32.4
作者:
Kontoyiannis, D;Pasparakis, M;Kollias, G
通讯作者:
Kollias, G
DOI:
10.1073/pnas.87.10.3743
发表时间:
1990-05-01
影响因子:
11.1
作者:
DRIGGERS, PH;ENNIST, DL;OZATO, K
通讯作者:
OZATO, K
影响因子:
158.5
作者:
Arbuckle, MR;McClain, MT;Harley, JB
通讯作者:
Harley, JB
影响因子:
4.4
作者:
Harigai, Masayoshi;Kawamoto, Manabu;Miyasaka, Nobuyuki
通讯作者:
Miyasaka, Nobuyuki
影响因子:
5.3
作者:
Hodge, DL;Martinez, A;Young, HA
通讯作者:
Young, HA